diff options
Diffstat (limited to 'recipes/linux/linux-omap-2.6.29/dss2/0003-DSS2-OMAP2-3-Display-Subsystem-driver.patch')
| -rw-r--r-- | recipes/linux/linux-omap-2.6.29/dss2/0003-DSS2-OMAP2-3-Display-Subsystem-driver.patch | 14450 |
1 files changed, 14450 insertions, 0 deletions
diff --git a/recipes/linux/linux-omap-2.6.29/dss2/0003-DSS2-OMAP2-3-Display-Subsystem-driver.patch b/recipes/linux/linux-omap-2.6.29/dss2/0003-DSS2-OMAP2-3-Display-Subsystem-driver.patch new file mode 100644 index 0000000000..c3523362c6 --- /dev/null +++ b/recipes/linux/linux-omap-2.6.29/dss2/0003-DSS2-OMAP2-3-Display-Subsystem-driver.patch @@ -0,0 +1,14450 @@ +From 284deec412f9c6f15c971d8eaf4d0156a51a2f3b Mon Sep 17 00:00:00 2001 +From: Tomi Valkeinen <tomi.valkeinen@nokia.com> +Date: Thu, 2 Apr 2009 10:23:42 +0300 +Subject: [PATCH] DSS2: OMAP2/3 Display Subsystem driver + +Signed-off-by: Tomi Valkeinen <tomi.valkeinen@nokia.com> +--- + Documentation/arm/OMAP/DSS | 311 +++ + arch/arm/plat-omap/Makefile | 2 +- + arch/arm/plat-omap/include/mach/display.h | 520 ++++ + arch/arm/plat-omap/include/mach/vram.h | 33 + + arch/arm/plat-omap/include/mach/vrfb.h | 47 + + arch/arm/plat-omap/vram.c | 615 +++++ + arch/arm/plat-omap/vrfb.c | 159 ++ + drivers/video/Kconfig | 1 + + drivers/video/Makefile | 1 + + drivers/video/omap2/Kconfig | 3 + + drivers/video/omap2/Makefile | 4 + + drivers/video/omap2/dss/Kconfig | 89 + + drivers/video/omap2/dss/Makefile | 6 + + drivers/video/omap2/dss/core.c | 641 +++++ + drivers/video/omap2/dss/dispc.c | 2968 +++++++++++++++++++++++ + drivers/video/omap2/dss/display.c | 693 ++++++ + drivers/video/omap2/dss/dpi.c | 393 +++ + drivers/video/omap2/dss/dsi.c | 3752 +++++++++++++++++++++++++++++ + drivers/video/omap2/dss/dss.c | 345 +++ + drivers/video/omap2/dss/dss.h | 331 +++ + drivers/video/omap2/dss/manager.c | 576 +++++ + drivers/video/omap2/dss/overlay.c | 587 +++++ + drivers/video/omap2/dss/rfbi.c | 1304 ++++++++++ + drivers/video/omap2/dss/sdi.c | 245 ++ + drivers/video/omap2/dss/venc.c | 600 +++++ + 25 files changed, 14225 insertions(+), 1 deletions(-) + create mode 100644 Documentation/arm/OMAP/DSS + create mode 100644 arch/arm/plat-omap/include/mach/display.h + create mode 100644 arch/arm/plat-omap/include/mach/vram.h + create mode 100644 arch/arm/plat-omap/include/mach/vrfb.h + create mode 100644 arch/arm/plat-omap/vram.c + create mode 100644 arch/arm/plat-omap/vrfb.c + create mode 100644 drivers/video/omap2/Kconfig + create mode 100644 drivers/video/omap2/Makefile + create mode 100644 drivers/video/omap2/dss/Kconfig + create mode 100644 drivers/video/omap2/dss/Makefile + create mode 100644 drivers/video/omap2/dss/core.c + create mode 100644 drivers/video/omap2/dss/dispc.c + create mode 100644 drivers/video/omap2/dss/display.c + create mode 100644 drivers/video/omap2/dss/dpi.c + create mode 100644 drivers/video/omap2/dss/dsi.c + create mode 100644 drivers/video/omap2/dss/dss.c + create mode 100644 drivers/video/omap2/dss/dss.h + create mode 100644 drivers/video/omap2/dss/manager.c + create mode 100644 drivers/video/omap2/dss/overlay.c + create mode 100644 drivers/video/omap2/dss/rfbi.c + create mode 100644 drivers/video/omap2/dss/sdi.c + create mode 100644 drivers/video/omap2/dss/venc.c + +diff --git a/Documentation/arm/OMAP/DSS b/Documentation/arm/OMAP/DSS +new file mode 100644 +index 0000000..9e902a2 +--- /dev/null ++++ b/Documentation/arm/OMAP/DSS +@@ -0,0 +1,311 @@ ++OMAP2/3 Display Subsystem ++------------------------- ++ ++This is an almost total rewrite of the OMAP FB driver in drivers/video/omap ++(let's call it DSS1). The main differences between DSS1 and DSS2 are DSI, ++TV-out and multiple display support, but there are lots of small improvements ++also. ++ ++The DSS2 driver (omapdss module) is in arch/arm/plat-omap/dss/, and the FB, ++panel and controller drivers are in drivers/video/omap2/. DSS1 and DSS2 live ++currently side by side, you can choose which one to use. ++ ++Features ++-------- ++ ++Working and tested features include: ++ ++- MIPI DPI (parallel) output ++- MIPI DSI output in command mode ++- MIPI DBI (RFBI) output ++- SDI output ++- TV output ++- All pieces can be compiled as a module or inside kernel ++- Use DISPC to update any of the outputs ++- Use CPU to update RFBI or DSI output ++- OMAP DISPC planes ++- RGB16, RGB24 packed, RGB24 unpacked ++- YUV2, UYVY ++- Scaling ++- Adjusting DSS FCK to find a good pixel clock ++- Use DSI DPLL to create DSS FCK ++ ++Tested boards include: ++- OMAP3 SDP board ++- Beagle board ++- N810 ++ ++omapdss driver ++-------------- ++ ++The DSS driver does not itself have any support for Linux framebuffer, V4L or ++such like the current ones, but it has an internal kernel API that upper level ++drivers can use. ++ ++The DSS driver models OMAP's overlays, overlay managers and displays in a ++flexible way to enable non-common multi-display configuration. In addition to ++modelling the hardware overlays, omapdss supports virtual overlays and overlay ++managers. These can be used when updating a display with CPU or system DMA. ++ ++Panel and controller drivers ++---------------------------- ++ ++The drivers implement panel or controller specific functionality and are not ++usually visible to users except through omapfb driver. They register ++themselves to the DSS driver. ++ ++omapfb driver ++------------- ++ ++The omapfb driver implements arbitrary number of standard linux framebuffers. ++These framebuffers can be routed flexibly to any overlays, thus allowing very ++dynamic display architecture. ++ ++The driver exports some omapfb specific ioctls, which are compatible with the ++ioctls in the old driver. ++ ++The rest of the non standard features are exported via sysfs. Whether the final ++implementation will use sysfs, or ioctls, is still open. ++ ++V4L2 drivers ++------------ ++ ++V4L2 is being implemented in TI. ++ ++From omapdss point of view the V4L2 drivers should be similar to framebuffer ++driver. ++ ++Architecture ++-------------------- ++ ++Some clarification what the different components do: ++ ++ - Framebuffer is a memory area inside OMAP's SRAM/SDRAM that contains the ++ pixel data for the image. Framebuffer has width and height and color ++ depth. ++ - Overlay defines where the pixels are read from and where they go on the ++ screen. The overlay may be smaller than framebuffer, thus displaying only ++ part of the framebuffer. The position of the overlay may be changed if ++ the overlay is smaller than the display. ++ - Overlay manager combines the overlays in to one image and feeds them to ++ display. ++ - Display is the actual physical display device. ++ ++A framebuffer can be connected to multiple overlays to show the same pixel data ++on all of the overlays. Note that in this case the overlay input sizes must be ++the same, but, in case of video overlays, the output size can be different. Any ++framebuffer can be connected to any overlay. ++ ++An overlay can be connected to one overlay manager. Also DISPC overlays can be ++connected only to DISPC overlay managers, and virtual overlays can be only ++connected to virtual overlays. ++ ++An overlay manager can be connected to one display. There are certain ++restrictions which kinds of displays an overlay manager can be connected: ++ ++ - DISPC TV overlay manager can be only connected to TV display. ++ - Virtual overlay managers can only be connected to DBI or DSI displays. ++ - DISPC LCD overlay manager can be connected to all displays, except TV ++ display. ++ ++Sysfs ++----- ++The sysfs interface is mainly used for testing. I don't think sysfs ++interface is the best for this in the final version, but I don't quite know ++what would be the best interfaces for these things. ++ ++The sysfs interface is divided to two parts: DSS and FB. ++ ++/sys/class/graphics/fb? directory: ++mirror 0=off, 1=on ++rotate Rotation 0-3 for 0, 90, 180, 270 degrees ++rotate_type 0 = DMA rotation, 1 = VRFB rotation ++overlays List of overlay numbers to which framebuffer pixels go ++phys_addr Physical address of the framebuffer ++virt_addr Virtual address of the framebuffer ++size Size of the framebuffer ++ ++/sys/devices/platform/omapdss/overlay? directory: ++enabled 0=off, 1=on ++input_size width,height (ie. the framebuffer size) ++manager Destination overlay manager name ++name ++output_size width,height ++position x,y ++screen_width width ++ ++/sys/devices/platform/omapdss/manager? directory: ++display Destination display ++name ++ ++/sys/devices/platform/omapdss/display? directory: ++ctrl_name Controller name ++mirror 0=off, 1=on ++update_mode 0=off, 1=auto, 2=manual ++enabled 0=off, 1=on ++name ++rotate Rotation 0-3 for 0, 90, 180, 270 degrees ++timings Display timings (pixclock,xres/hfp/hbp/hsw,yres/vfp/vbp/vsw) ++ When writing, two special timings are accepted for tv-out: ++ "pal" and "ntsc" ++panel_name ++tear_elim Tearing elimination 0=off, 1=on ++ ++There are also some debugfs files at <debugfs>/omapdss/ which show information ++about clocks and registers. ++ ++Examples ++-------- ++ ++The following definitions have been made for the examples below: ++ ++ovl0=/sys/devices/platform/omapdss/overlay0 ++ovl1=/sys/devices/platform/omapdss/overlay1 ++ovl2=/sys/devices/platform/omapdss/overlay2 ++ ++mgr0=/sys/devices/platform/omapdss/manager0 ++mgr1=/sys/devices/platform/omapdss/manager1 ++ ++lcd=/sys/devices/platform/omapdss/display0 ++dvi=/sys/devices/platform/omapdss/display1 ++tv=/sys/devices/platform/omapdss/display2 ++ ++fb0=/sys/class/graphics/fb0 ++fb1=/sys/class/graphics/fb1 ++fb2=/sys/class/graphics/fb2 ++ ++Default setup on OMAP3 SDP ++-------------------------- ++ ++Here's the default setup on OMAP3 SDP board. All planes go to LCD. DVI ++and TV-out are not in use. The columns from left to right are: ++framebuffers, overlays, overlay managers, displays. Framebuffers are ++handled by omapfb, and the rest by the DSS. ++ ++FB0 --- GFX -\ DVI ++FB1 --- VID1 --+- LCD ---- LCD ++FB2 --- VID2 -/ TV ----- TV ++ ++Example: Switch from LCD to DVI ++---------------------- ++ ++w=`cat $dvi/horizontal | cut -d "," -f 1` ++h=`cat $dvi/vertical | cut -d "," -f 1` ++ ++echo "0" > $lcd/enabled ++echo "" > $mgr0/display ++fbset -fb /dev/fb0 -xres $w -yres $h -vxres $w -vyres $h ++# at this point you have to switch the dvi/lcd dip-switch from the omap board ++echo "dvi" > $mgr0/display ++echo "1" > $dvi/enabled ++ ++After this the configuration looks like: ++ ++FB0 --- GFX -\ -- DVI ++FB1 --- VID1 --+- LCD -/ LCD ++FB2 --- VID2 -/ TV ----- TV ++ ++Example: Clone GFX overlay to LCD and TV ++------------------------------- ++ ++w=`cat $tv/horizontal | cut -d "," -f 1` ++h=`cat $tv/vertical | cut -d "," -f 1` ++ ++echo "0" > $ovl0/enabled ++echo "0" > $ovl1/enabled ++ ++echo "" > $fb1/overlays ++echo "0,1" > $fb0/overlays ++ ++echo "$w,$h" > $ovl1/output_size ++echo "tv" > $ovl1/manager ++ ++echo "1" > $ovl0/enabled ++echo "1" > $ovl1/enabled ++ ++echo "1" > $tv/enabled ++ ++After this the configuration looks like (only relevant parts shown): ++ ++FB0 +-- GFX ---- LCD ---- LCD ++ \- VID1 ---- TV ---- TV ++ ++Misc notes ++---------- ++ ++OMAP FB allocates the framebuffer memory using the OMAP VRAM allocator. ++ ++Using DSI DPLL to generate pixel clock it is possible produce the pixel clock ++of 86.5MHz (max possible), and with that you get 1280x1024@57 output from DVI. ++ ++Rotation and mirroring currently only supports RGB565 and RGB8888 modes. VRFB ++does not support mirroring. ++ ++VRFB rotation requires much more memory than non-rotated framebuffer, so you ++probably need to increase your vram setting before using VRFB rotation. Also, ++many applications may not work with VRFB if they do not pay attention to all ++framebuffer parameters. ++ ++Kernel boot arguments ++--------------------- ++ ++vram=<size> ++ - Amount of total VRAM to preallocate. For example, "10M". omapfb ++ allocates memory for framebuffers from VRAM. ++ ++omapfb.mode=<display>:<mode>[,...] ++ - Default video mode for specified displays. For example, ++ "dvi:800x400MR-24@60". See drivers/video/modedb.c. ++ There are also two special modes: "pal" and "ntsc" that ++ can be used to tv out. ++ ++omapfb.vram=<fbnum>:<size>[@<physaddr>][,...] ++ - VRAM allocated for a framebuffer. Normally omapfb allocates vram ++ depending on the display size. With this you can manually allocate ++ more or define the physical address of each framebuffer. For example, ++ "1:4M" to allocate 4M for fb1. ++ ++omapfb.debug=<y|n> ++ - Enable debug printing. You have to have OMAPFB debug support enabled ++ in kernel config. ++ ++omapfb.test=<y|n> ++ - Draw test pattern to framebuffer whenever framebuffer settings change. ++ You need to have OMAPFB debug support enabled in kernel config. ++ ++omapfb.vrfb=<y|n> ++ - Use VRFB rotation for all framebuffers. ++ ++omapfb.rotate=<angle> ++ - Default rotation applied to all framebuffers. ++ 0 - 0 degree rotation ++ 1 - 90 degree rotation ++ 2 - 180 degree rotation ++ 3 - 270 degree rotation ++ ++omapfb.mirror=<y|n> ++ - Default mirror for all framebuffers. Only works with DMA rotation. ++ ++omapdss.def_disp=<display> ++ - Name of default display, to which all overlays will be connected. ++ Common examples are "lcd" or "tv". ++ ++omapdss.debug=<y|n> ++ - Enable debug printing. You have to have DSS debug support enabled in ++ kernel config. ++ ++TODO ++---- ++ ++DSS locking ++ ++Error checking ++- Lots of checks are missing or implemented just as BUG() ++ ++System DMA update for DSI ++- Can be used for RGB16 and RGB24P modes. Probably not for RGB24U (how ++ to skip the empty byte?) ++ ++OMAP1 support ++- Not sure if needed ++ +diff --git a/arch/arm/plat-omap/Makefile b/arch/arm/plat-omap/Makefile +index 3ebc09e..e6146b2 100644 +--- a/arch/arm/plat-omap/Makefile ++++ b/arch/arm/plat-omap/Makefile +@@ -4,7 +4,7 @@ + + # Common support + obj-y := common.o sram.o clock.o devices.o dma.o mux.o gpio.o \ +- usb.o fb.o io.o ++ usb.o fb.o vram.o vrfb.o io.o + obj-m := + obj-n := + obj- := +diff --git a/arch/arm/plat-omap/include/mach/display.h b/arch/arm/plat-omap/include/mach/display.h +new file mode 100644 +index 0000000..6288353 +--- /dev/null ++++ b/arch/arm/plat-omap/include/mach/display.h +@@ -0,0 +1,520 @@ ++/* ++ * linux/include/asm-arm/arch-omap/display.h ++ * ++ * Copyright (C) 2008 Nokia Corporation ++ * Author: Tomi Valkeinen <tomi.valkeinen@nokia.com> ++ * ++ * This program is free software; you can redistribute it and/or modify it ++ * under the terms of the GNU General Public License version 2 as published by ++ * the Free Software Foundation. ++ * ++ * This program is distributed in the hope that it will be useful, but WITHOUT ++ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or ++ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for ++ * more details. ++ * ++ * You should have received a copy of the GNU General Public License along with ++ * this program. If not, see <http://www.gnu.org/licenses/>. ++ */ ++ ++#ifndef __ASM_ARCH_OMAP_DISPLAY_H ++#define __ASM_ARCH_OMAP_DISPLAY_H ++ ++#include <linux/list.h> ++#include <linux/kobject.h> ++#include <asm/atomic.h> ++ ++#define DISPC_IRQ_FRAMEDONE (1 << 0) ++#define DISPC_IRQ_VSYNC (1 << 1) ++#define DISPC_IRQ_EVSYNC_EVEN (1 << 2) ++#define DISPC_IRQ_EVSYNC_ODD (1 << 3) ++#define DISPC_IRQ_ACBIAS_COUNT_STAT (1 << 4) ++#define DISPC_IRQ_PROG_LINE_NUM (1 << 5) ++#define DISPC_IRQ_GFX_FIFO_UNDERFLOW (1 << 6) ++#define DISPC_IRQ_GFX_END_WIN (1 << 7) ++#define DISPC_IRQ_PAL_GAMMA_MASK (1 << 8) ++#define DISPC_IRQ_OCP_ERR (1 << 9) ++#define DISPC_IRQ_VID1_FIFO_UNDERFLOW (1 << 10) ++#define DISPC_IRQ_VID1_END_WIN (1 << 11) ++#define DISPC_IRQ_VID2_FIFO_UNDERFLOW (1 << 12) ++#define DISPC_IRQ_VID2_END_WIN (1 << 13) ++#define DISPC_IRQ_SYNC_LOST (1 << 14) ++#define DISPC_IRQ_SYNC_LOST_DIGIT (1 << 15) ++#define DISPC_IRQ_WAKEUP (1 << 16) ++ ++enum omap_display_type { ++ OMAP_DISPLAY_TYPE_NONE = 0, ++ OMAP_DISPLAY_TYPE_DPI = 1 << 0, ++ OMAP_DISPLAY_TYPE_DBI = 1 << 1, ++ OMAP_DISPLAY_TYPE_SDI = 1 << 2, ++ OMAP_DISPLAY_TYPE_DSI = 1 << 3, ++ OMAP_DISPLAY_TYPE_VENC = 1 << 4, ++}; ++ ++enum omap_plane { ++ OMAP_DSS_GFX = 0, ++ OMAP_DSS_VIDEO1 = 1, ++ OMAP_DSS_VIDEO2 = 2 ++}; ++ ++enum omap_channel { ++ OMAP_DSS_CHANNEL_LCD = 0, ++ OMAP_DSS_CHANNEL_DIGIT = 1, ++}; ++ ++enum omap_color_mode { ++ OMAP_DSS_COLOR_CLUT1 = 1 << 0, /* BITMAP 1 */ ++ OMAP_DSS_COLOR_CLUT2 = 1 << 1, /* BITMAP 2 */ ++ OMAP_DSS_COLOR_CLUT4 = 1 << 2, /* BITMAP 4 */ ++ OMAP_DSS_COLOR_CLUT8 = 1 << 3, /* BITMAP 8 */ ++ OMAP_DSS_COLOR_RGB12U = 1 << 4, /* RGB12, 16-bit container */ ++ OMAP_DSS_COLOR_ARGB16 = 1 << 5, /* ARGB16 */ ++ OMAP_DSS_COLOR_RGB16 = 1 << 6, /* RGB16 */ ++ OMAP_DSS_COLOR_RGB24U = 1 << 7, /* RGB24, 32-bit container */ ++ OMAP_DSS_COLOR_RGB24P = 1 << 8, /* RGB24, 24-bit container */ ++ OMAP_DSS_COLOR_YUV2 = 1 << 9, /* YUV2 4:2:2 co-sited */ ++ OMAP_DSS_COLOR_UYVY = 1 << 10, /* UYVY 4:2:2 co-sited */ ++ OMAP_DSS_COLOR_ARGB32 = 1 << 11, /* ARGB32 */ ++ OMAP_DSS_COLOR_RGBA32 = 1 << 12, /* RGBA32 */ ++ OMAP_DSS_COLOR_RGBX32 = 1 << 13, /* RGBx32 */ ++ ++ OMAP_DSS_COLOR_GFX_OMAP3 = ++ OMAP_DSS_COLOR_CLUT1 | OMAP_DSS_COLOR_CLUT2 | ++ OMAP_DSS_COLOR_CLUT4 | OMAP_DSS_COLOR_CLUT8 | ++ OMAP_DSS_COLOR_RGB12U | OMAP_DSS_COLOR_ARGB16 | ++ OMAP_DSS_COLOR_RGB16 | OMAP_DSS_COLOR_RGB24U | ++ OMAP_DSS_COLOR_RGB24P | OMAP_DSS_COLOR_ARGB32 | ++ OMAP_DSS_COLOR_RGBA32 | OMAP_DSS_COLOR_RGBX32, ++ ++ OMAP_DSS_COLOR_VID_OMAP3 = ++ OMAP_DSS_COLOR_RGB12U | OMAP_DSS_COLOR_ARGB16 | ++ OMAP_DSS_COLOR_RGB16 | OMAP_DSS_COLOR_RGB24U | ++ OMAP_DSS_COLOR_RGB24P | OMAP_DSS_COLOR_ARGB32 | ++ OMAP_DSS_COLOR_RGBA32 | OMAP_DSS_COLOR_RGBX32 | ++ OMAP_DSS_COLOR_YUV2 | OMAP_DSS_COLOR_UYVY, ++}; ++ ++enum omap_lcd_display_type { ++ OMAP_DSS_LCD_DISPLAY_STN, ++ OMAP_DSS_LCD_DISPLAY_TFT, ++}; ++ ++enum omap_dss_load_mode { ++ OMAP_DSS_LOAD_CLUT_AND_FRAME = 0, ++ OMAP_DSS_LOAD_CLUT_ONLY = 1, ++ OMAP_DSS_LOAD_FRAME_ONLY = 2, ++ OMAP_DSS_LOAD_CLUT_ONCE_FRAME = 3, ++}; ++ ++enum omap_dss_color_key_type { ++ OMAP_DSS_COLOR_KEY_GFX_DST = 0, ++ OMAP_DSS_COLOR_KEY_VID_SRC = 1, ++}; ++ ++enum omap_rfbi_te_mode { ++ OMAP_DSS_RFBI_TE_MODE_1 = 1, ++ OMAP_DSS_RFBI_TE_MODE_2 = 2, ++}; ++ ++enum omap_panel_config { ++ OMAP_DSS_LCD_IVS = 1<<0, ++ OMAP_DSS_LCD_IHS = 1<<1, ++ OMAP_DSS_LCD_IPC = 1<<2, ++ OMAP_DSS_LCD_IEO = 1<<3, ++ OMAP_DSS_LCD_RF = 1<<4, ++ OMAP_DSS_LCD_ONOFF = 1<<5, ++ ++ OMAP_DSS_LCD_TFT = 1<<20, ++}; ++ ++enum omap_dss_venc_type { ++ OMAP_DSS_VENC_TYPE_COMPOSITE, ++ OMAP_DSS_VENC_TYPE_SVIDEO, ++}; ++ ++struct omap_display; ++struct omap_panel; ++struct omap_ctrl; ++ ++/* RFBI */ ++ ++struct rfbi_timings { ++ int cs_on_time; ++ int cs_off_time; ++ int we_on_time; ++ int we_off_time; ++ int re_on_time; ++ int re_off_time; ++ int we_cycle_time; ++ int re_cycle_time; ++ int cs_pulse_width; ++ int access_time; ++ ++ int clk_div; ++ ++ u32 tim[5]; /* set by rfbi_convert_timings() */ ++ ++ int converted; ++}; ++ ++void omap_rfbi_write_command(const void *buf, u32 len); ++void omap_rfbi_read_data(void *buf, u32 len); ++void omap_rfbi_write_data(const void *buf, u32 len); ++void omap_rfbi_write_pixels(const void __iomem *buf, int scr_width, ++ u16 x, u16 y, ++ u16 w, u16 h); ++int omap_rfbi_enable_te(bool enable, unsigned line); ++int omap_rfbi_setup_te(enum omap_rfbi_te_mode mode, ++ unsigned hs_pulse_time, unsigned vs_pulse_time, ++ int hs_pol_inv, int vs_pol_inv, int extif_div); ++ ++/* DSI */ ++int dsi_vc_dcs_write(int channel, u8 *data, int len); ++int dsi_vc_dcs_write_nosync(int channel, u8 *data, int len); ++int dsi_vc_dcs_read(int channel, u8 dcs_cmd, u8 *buf, int buflen); ++int dsi_vc_set_max_rx_packet_size(int channel, u16 len); ++int dsi_vc_send_null(int channel); ++ ++/* Board specific data */ ++struct omap_dss_display_config { ++ enum omap_display_type type; ++ ++ union { ++ struct { ++ u8 data_lines; ++ } dpi; ++ ++ struct { ++ u8 channel; ++ u8 data_lines; ++ } rfbi; ++ ++ struct { ++ u8 datapairs; ++ } sdi; ++ ++ struct { ++ u8 clk_lane; ++ u8 clk_pol; ++ u8 data1_lane; ++ u8 data1_pol; ++ u8 data2_lane; ++ u8 data2_pol; ++ unsigned long ddr_clk_hz; ++ } dsi; ++ ++ struct { ++ enum omap_dss_venc_type type; ++ } venc; ++ } u; ++ ++ int panel_reset_gpio; ++ int ctrl_reset_gpio; ++ ++ const char *name; /* for debug */ ++ const char *ctrl_name; ++ const char *panel_name; ++ ++ void *panel_data; ++ void *ctrl_data; ++ ++ /* platform specific enable/disable */ ++ int (*panel_enable)(struct omap_display *display); ++ void (*panel_disable)(struct omap_display *display); ++ int (*ctrl_enable)(struct omap_display *display); ++ void (*ctrl_disable)(struct omap_display *display); ++ int (*set_backlight)(struct omap_display *display, ++ int level); ++}; ++ ++struct device; ++ ++/* Board specific data */ ++struct omap_dss_board_info { ++ unsigned (*get_last_off_on_transaction_id)(struct device *dev); ++ int (*dsi_power_up)(void); ++ void (*dsi_power_down)(void); ++ int num_displays; ++ struct omap_dss_display_config *displays[]; ++}; ++ ++struct omap_ctrl { ++ struct module *owner; ++ ++ const char *name; ++ ++ int (*init)(struct omap_display *display); ++ void (*cleanup)(struct omap_display *display); ++ int (*enable)(struct omap_display *display); ++ void (*disable)(struct omap_display *display); ++ int (*suspend)(struct omap_display *display); ++ int (*resume)(struct omap_display *display); ++ void (*setup_update)(struct omap_display *display, ++ u16 x, u16 y, u16 w, u16 h); ++ ++ int (*enable_te)(struct omap_display *display, bool enable); ++ ++ u8 (*get_rotate)(struct omap_display *display); ++ int (*set_rotate)(struct omap_display *display, u8 rotate); ++ ++ bool (*get_mirror)(struct omap_display *display); ++ int (*set_mirror)(struct omap_display *display, bool enable); ++ ++ int (*run_test)(struct omap_display *display, int test); ++ int (*memory_read)(struct omap_display *display, ++ void *buf, size_t size, ++ u16 x, u16 y, u16 w, u16 h); ++ ++ u8 pixel_size; ++ ++ struct rfbi_timings timings; ++ ++ void *priv; ++}; ++ ++struct omap_video_timings { ++ /* Unit: pixels */ ++ u16 x_res; ++ /* Unit: pixels */ ++ u16 y_res; ++ /* Unit: KHz */ ++ u32 pixel_clock; ++ /* Unit: pixel clocks */ ++ u16 hsw; /* Horizontal synchronization pulse width */ ++ /* Unit: pixel clocks */ ++ u16 hfp; /* Horizontal front porch */ ++ /* Unit: pixel clocks */ ++ u16 hbp; /* Horizontal back porch */ ++ /* Unit: line clocks */ ++ u16 vsw; /* Vertical synchronization pulse width */ ++ /* Unit: line clocks */ ++ u16 vfp; /* Vertical front porch */ ++ /* Unit: line clocks */ ++ u16 vbp; /* Vertical back porch */ ++ ++}; ++ ++#ifdef CONFIG_OMAP2_DSS_VENC ++/* Hardcoded timings for tv modes. Venc only uses these to ++ * identify the mode, and does not actually use the configs ++ * itself. However, the configs should be something that ++ * a normal monitor can also show */ ++const extern struct omap_video_timings omap_dss_pal_timings; ++const extern struct omap_video_timings omap_dss_ntsc_timings; ++#endif ++ ++struct omap_panel { ++ struct module *owner; ++ ++ const char *name; ++ ++ int (*init)(struct omap_display *display); ++ void (*cleanup)(struct omap_display *display); ++ int (*remove)(struct omap_display *display); ++ int (*enable)(struct omap_display *display); ++ void (*disable)(struct omap_display *display); ++ int (*suspend)(struct omap_display *display); ++ int (*resume)(struct omap_display *display); ++ int (*run_test)(struct omap_display *display, int test); ++ ++ struct omap_video_timings timings; ++ ++ int acbi; /* ac-bias pin transitions per interrupt */ ++ /* Unit: line clocks */ ++ int acb; /* ac-bias pin frequency */ ++ ++ enum omap_panel_config config; ++ ++ u8 recommended_bpp; ++ ++ void *priv; ++}; ++ ++/* XXX perhaps this should be removed */ ++enum omap_dss_overlay_managers { ++ OMAP_DSS_OVL_MGR_LCD, ++ OMAP_DSS_OVL_MGR_TV, ++}; ++ ++struct omap_overlay_manager; ++ ++struct omap_overlay_info { ++ bool enabled; ++ ++ u32 paddr; ++ void __iomem *vaddr; ++ u16 screen_width; ++ u16 width; ++ u16 height; ++ enum omap_color_mode color_mode; ++ u8 rotation; ++ bool mirror; ++ ++ u16 pos_x; ++ u16 pos_y; ++ u16 out_width; /* if 0, out_width == width */ ++ u16 out_height; /* if 0, out_height == height */ ++}; ++ ++enum omap_overlay_caps { ++ OMAP_DSS_OVL_CAP_SCALE = 1 << 0, ++ OMAP_DSS_OVL_CAP_DISPC = 1 << 1, ++}; ++ ++struct omap_overlay { ++ struct kobject kobj; ++ struct list_head list; ++ ++ const char *name; ++ int id; ++ struct omap_overlay_manager *manager; ++ enum omap_color_mode supported_modes; ++ struct omap_overlay_info info; ++ enum omap_overlay_caps caps; ++ ++ int (*set_manager)(struct omap_overlay *ovl, ++ struct omap_overlay_manager *mgr); ++ int (*unset_manager)(struct omap_overlay *ovl); ++ ++ int (*set_overlay_info)(struct omap_overlay *ovl, ++ struct omap_overlay_info *info); ++ void (*get_overlay_info)(struct omap_overlay *ovl, ++ struct omap_overlay_info *info); ++}; ++ ++enum omap_overlay_manager_caps { ++ OMAP_DSS_OVL_MGR_CAP_DISPC = 1 << 0, ++}; ++ ++struct omap_overlay_manager { ++ struct kobject kobj; ++ struct list_head list; ++ ++ const char *name; ++ int id; ++ enum omap_overlay_manager_caps caps; ++ struct omap_display *display; ++ int num_overlays; ++ struct omap_overlay **overlays; ++ enum omap_display_type supported_displays; ++ ++ int (*set_display)(struct omap_overlay_manager *mgr, ++ struct omap_display *display); ++ int (*unset_display)(struct omap_overlay_manager *mgr); ++ ++ int (*apply)(struct omap_overlay_manager *mgr); ++ ++ void (*set_default_color)(struct omap_overlay_manager *mgr, u32 color); ++ void (*set_trans_key)(struct omap_overlay_manager *mgr, ++ enum omap_dss_color_key_type type, ++ u32 trans_key); ++ void (*enable_trans_key)(struct omap_overlay_manager *mgr, ++ bool enable); ++}; ++ ++enum omap_display_caps { ++ OMAP_DSS_DISPLAY_CAP_MANUAL_UPDATE = 1 << 0, ++}; ++ ++enum omap_dss_update_mode { ++ OMAP_DSS_UPDATE_DISABLED = 0, ++ OMAP_DSS_UPDATE_AUTO, ++ OMAP_DSS_UPDATE_MANUAL, ++}; ++ ++enum omap_dss_display_state { ++ OMAP_DSS_DISPLAY_DISABLED = 0, ++ OMAP_DSS_DISPLAY_ACTIVE, ++ OMAP_DSS_DISPLAY_SUSPENDED, ++}; ++ ++struct omap_display { ++ struct kobject kobj; ++ struct list_head list; ++ ++ /*atomic_t ref_count;*/ ++ int ref_count; ++ /* helper variable for driver suspend/resume */ ++ int activate_after_resume; ++ ++ enum omap_display_type type; ++ const char *name; ++ ++ enum omap_display_caps caps; ++ ++ struct omap_overlay_manager *manager; ++ ++ enum omap_dss_display_state state; ++ ++ struct omap_dss_display_config hw_config; /* board specific data */ ++ struct omap_ctrl *ctrl; /* static common data */ ++ struct omap_panel *panel; /* static common data */ ++ ++ int (*enable)(struct omap_display *display); ++ void (*disable)(struct omap_display *display); ++ ++ int (*suspend)(struct omap_display *display); ++ int (*resume)(struct omap_display *display); ++ ++ void (*get_resolution)(struct omap_display *display, ++ u16 *xres, u16 *yres); ++ int (*get_recommended_bpp)(struct omap_display *display); ++ ++ int (*check_timings)(struct omap_display *display, ++ struct omap_video_timings *timings); ++ void (*set_timings)(struct omap_display *display, ++ struct omap_video_timings *timings); ++ void (*get_timings)(struct omap_display *display, ++ struct omap_video_timings *timings); ++ int (*update)(struct omap_display *display, ++ u16 x, u16 y, u16 w, u16 h); ++ int (*sync)(struct omap_display *display); ++ int (*wait_vsync)(struct omap_display *display); ++ ++ int (*set_update_mode)(struct omap_display *display, ++ enum omap_dss_update_mode); ++ enum omap_dss_update_mode (*get_update_mode) ++ (struct omap_display *display); ++ ++ int (*enable_te)(struct omap_display *display, bool enable); ++ int (*get_te)(struct omap_display *display); ++ ++ u8 (*get_rotate)(struct omap_display *display); ++ int (*set_rotate)(struct omap_display *display, u8 rotate); ++ ++ bool (*get_mirror)(struct omap_display *display); ++ int (*set_mirror)(struct omap_display *display, bool enable); ++ ++ int (*run_test)(struct omap_display *display, int test); ++ int (*memory_read)(struct omap_display *display, ++ void *buf, size_t size, ++ u16 x, u16 y, u16 w, u16 h); ++ ++ void (*configure_overlay)(struct omap_overlay *overlay); ++}; ++ ++int omap_dss_get_num_displays(void); ++struct omap_display *omap_dss_get_display(int no); ++void omap_dss_put_display(struct omap_display *display); ++ ++void omap_dss_register_ctrl(struct omap_ctrl *ctrl); ++void omap_dss_unregister_ctrl(struct omap_ctrl *ctrl); ++ ++void omap_dss_register_panel(struct omap_panel *panel); ++void omap_dss_unregister_panel(struct omap_panel *panel); ++ ++int omap_dss_get_num_overlay_managers(void); ++struct omap_overlay_manager *omap_dss_get_overlay_manager(int num); ++ ++int omap_dss_get_num_overlays(void); ++struct omap_overlay *omap_dss_get_overlay(int num); ++ ++typedef void (*omap_dispc_isr_t) (void *arg, u32 mask); ++int omap_dispc_register_isr(omap_dispc_isr_t isr, void *arg, u32 mask); ++int omap_dispc_unregister_isr(omap_dispc_isr_t isr, void *arg, u32 mask); ++ ++int omap_dispc_wait_for_irq_timeout(u32 irqmask, unsigned long timeout); ++int omap_dispc_wait_for_irq_interruptible_timeout(u32 irqmask, ++ unsigned long timeout); ++ ++#endif +diff --git a/arch/arm/plat-omap/include/mach/vram.h b/arch/arm/plat-omap/include/mach/vram.h +new file mode 100644 +index 0000000..f176562 +--- /dev/null ++++ b/arch/arm/plat-omap/include/mach/vram.h +@@ -0,0 +1,33 @@ ++/* ++ * File: arch/arm/plat-omap/include/mach/vram.h ++ * ++ * Copyright (C) 2009 Nokia Corporation ++ * Author: Tomi Valkeinen <tomi.valkeinen@nokia.com> ++ * ++ * This program is free software; you can redistribute it and/or modify it ++ * under the terms of the GNU General Public License as published by the ++ * Free Software Foundation; either version 2 of the License, or (at your ++ * option) any later version. ++ * ++ * This program is distributed in the hope that it will be useful, but ++ * WITHOUT ANY WARRANTY; without even the implied warranty of ++ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU ++ * General Public License for more details. ++ * ++ * You should have received a copy of the GNU General Public License along ++ * with this program; if not, write to the Free Software Foundation, Inc., ++ * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. ++ */ ++ ++#ifndef __OMAPVRAM_H ++#define __OMAPVRAM_H ++ ++#include <asm/types.h> ++ ++extern int omap_vram_free(unsigned long paddr, size_t size); ++extern int omap_vram_alloc(int mtype, size_t size, unsigned long *paddr); ++extern int omap_vram_reserve(unsigned long paddr, size_t size); ++extern void omap2_set_sdram_vram(u32 size, u32 start); ++extern void omap2_set_sram_vram(u32 size, u32 start); ++ ++#endif +diff --git a/arch/arm/plat-omap/include/mach/vrfb.h b/arch/arm/plat-omap/include/mach/vrfb.h +new file mode 100644 +index 0000000..2047862 +--- /dev/null ++++ b/arch/arm/plat-omap/include/mach/vrfb.h +@@ -0,0 +1,47 @@ ++/* ++ * File: arch/arm/plat-omap/include/mach/vrfb.h ++ * ++ * VRFB ++ * ++ * Copyright (C) 2009 Nokia Corporation ++ * Author: Tomi Valkeinen <tomi.valkeinen@nokia.com> ++ * ++ * This program is free software; you can redistribute it and/or modify it ++ * under the terms of the GNU General Public License as published by the ++ * Free Software Foundation; either version 2 of the License, or (at your ++ * option) any later version. ++ * ++ * This program is distributed in the hope that it will be useful, but ++ * WITHOUT ANY WARRANTY; without even the implied warranty of ++ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU ++ * General Public License for more details. ++ * ++ * You should have received a copy of the GNU General Public License along ++ * with this program; if not, write to the Free Software Foundation, Inc., ++ * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. ++ */ ++ ++#ifndef __VRFB_H ++#define __VRFB_H ++ ++#define OMAP_VRFB_LINE_LEN 2048 ++ ++struct vrfb ++{ ++ u8 context; ++ void __iomem *vaddr[4]; ++ unsigned long paddr[4]; ++ u16 xoffset; ++ u16 yoffset; ++ u8 bytespp; ++}; ++ ++extern int omap_vrfb_request_ctx(struct vrfb *vrfb); ++extern void omap_vrfb_release_ctx(struct vrfb *vrfb); ++extern void omap_vrfb_adjust_size(u16 *width, u16 *height, ++ u8 bytespp); ++extern void omap_vrfb_setup(struct vrfb *vrfb, unsigned long paddr, ++ u16 width, u16 height, ++ u8 bytespp); ++ ++#endif /* __VRFB_H */ +diff --git a/arch/arm/plat-omap/vram.c b/arch/arm/plat-omap/vram.c +new file mode 100644 +index 0000000..f24a110 +--- /dev/null ++++ b/arch/arm/plat-omap/vram.c +@@ -0,0 +1,615 @@ ++/* ++ * linux/arch/arm/plat-omap/vram.c ++ * ++ * Copyright (C) 2008 Nokia Corporation ++ * Author: Tomi Valkeinen <tomi.valkeinen@nokia.com> ++ * ++ * Some code and ideas taken from drivers/video/omap/ driver ++ * by Imre Deak. ++ * ++ * This program is free software; you can redistribute it and/or modify it ++ * under the terms of the GNU General Public License version 2 as published by ++ * the Free Software Foundation. ++ * ++ * This program is distributed in the hope that it will be useful, but WITHOUT ++ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or ++ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for ++ * more details. ++ * ++ * You should have received a copy of the GNU General Public License along with ++ * this program. If not, see <http://www.gnu.org/licenses/>. ++ */ ++ ++/*#define DEBUG*/ ++ ++#include <linux/vmalloc.h> ++#include <linux/kernel.h> ++#include <linux/mm.h> ++#include <linux/list.h> ++#include <linux/dma-mapping.h> ++#include <linux/proc_fs.h> ++#include <linux/seq_file.h> ++#include <linux/bootmem.h> ++#include <linux/omapfb.h> ++ ++#include <asm/setup.h> ++ ++#include <mach/sram.h> ++#include <mach/vram.h> ++ ++#ifdef DEBUG ++#define DBG(format, ...) printk(KERN_DEBUG "VRAM: " format, ## __VA_ARGS__) ++#else ++#define DBG(format, ...) ++#endif ++ ++#define OMAP2_SRAM_START 0x40200000 ++/* Maximum size, in reality this is smaller if SRAM is partially locked. */ ++#define OMAP2_SRAM_SIZE 0xa0000 /* 640k */ ++ ++#define REG_MAP_SIZE(_page_cnt) \ ++ ((_page_cnt + (sizeof(unsigned long) * 8) - 1) / 8) ++#define REG_MAP_PTR(_rg, _page_nr) \ ++ (((_rg)->map) + (_page_nr) / (sizeof(unsigned long) * 8)) ++#define REG_MAP_MASK(_page_nr) \ ++ (1 << ((_page_nr) & (sizeof(unsigned long) * 8 - 1))) ++ ++#if defined(CONFIG_FB_OMAP2) || defined(CONFIG_FB_OMAP2_MODULE) ++ ++/* postponed regions are used to temporarily store region information at boot ++ * time when we cannot yet allocate the region list */ ++#define MAX_POSTPONED_REGIONS 10 ++ ++static int postponed_cnt __initdata; ++static struct { ++ unsigned long paddr; ++ size_t size; ++} postponed_regions[MAX_POSTPONED_REGIONS] __initdata; ++ ++struct vram_alloc { ++ struct list_head list; ++ unsigned long paddr; ++ unsigned pages; ++}; ++ ++struct vram_region { ++ struct list_head list; ++ struct list_head alloc_list; ++ unsigned long paddr; ++ unsigned pages; ++}; ++ ++static DEFINE_MUTEX(region_mutex); ++static LIST_HEAD(region_list); ++ ++static inline int region_mem_type(unsigned long paddr) ++{ ++ if (paddr >= OMAP2_SRAM_START && ++ paddr < OMAP2_SRAM_START + OMAP2_SRAM_SIZE) ++ return OMAPFB_MEMTYPE_SRAM; ++ else ++ return OMAPFB_MEMTYPE_SDRAM; ++} ++ ++static struct vram_region *omap_vram_create_region(unsigned long paddr, ++ unsigned pages) ++{ ++ struct vram_region *rm; ++ ++ rm = kzalloc(sizeof(*rm), GFP_KERNEL); ++ ++ if (rm) { ++ INIT_LIST_HEAD(&rm->alloc_list); ++ rm->paddr = paddr; ++ rm->pages = pages; ++ } ++ ++ return rm; ++} ++ ++#if 0 ++static void omap_vram_free_region(struct vram_region *vr) ++{ ++ list_del(&vr->list); ++ kfree(vr); ++} ++#endif ++ ++static struct vram_alloc *omap_vram_create_allocation(struct vram_region *vr, ++ unsigned long paddr, unsigned pages) ++{ ++ struct vram_alloc *va; ++ struct vram_alloc *new; ++ ++ new = kzalloc(sizeof(*va), GFP_KERNEL); ++ ++ if (!new) ++ return NULL; ++ ++ new->paddr = paddr; ++ new->pages = pages; ++ ++ list_for_each_entry(va, &vr->alloc_list, list) { ++ if (va->paddr > new->paddr) ++ break; ++ } ++ ++ list_add_tail(&new->list, &va->list); ++ ++ return new; ++} ++ ++static void omap_vram_free_allocation(struct vram_alloc *va) ++{ ++ list_del(&va->list); ++ kfree(va); ++} ++ ++static __init int omap_vram_add_region_postponed(unsigned long paddr, ++ size_t size) ++{ ++ if (postponed_cnt == MAX_POSTPONED_REGIONS) ++ return -ENOMEM; ++ ++ postponed_regions[postponed_cnt].paddr = paddr; ++ postponed_regions[postponed_cnt].size = size; ++ ++ ++postponed_cnt; ++ ++ return 0; ++} ++ ++/* add/remove_region can be exported if there's need to add/remove regions ++ * runtime */ ++static int omap_vram_add_region(unsigned long paddr, size_t size) ++{ ++ struct vram_region *rm; ++ unsigned pages; ++ ++ DBG("adding region paddr %08lx size %d\n", ++ paddr, size); ++ ++ size &= PAGE_MASK; ++ pages = size >> PAGE_SHIFT; ++ ++ rm = omap_vram_create_region(paddr, pages); ++ if (rm == NULL) ++ return -ENOMEM; ++ ++ list_add(&rm->list, ®ion_list); ++ ++ return 0; ++} ++ ++int omap_vram_free(unsigned long paddr, size_t size) ++{ ++ struct vram_region *rm; ++ struct vram_alloc *alloc; ++ unsigned start, end; ++ ++ DBG("free mem paddr %08lx size %d\n", paddr, size); ++ ++ size = PAGE_ALIGN(size); ++ ++ mutex_lock(®ion_mutex); ++ ++ list_for_each_entry(rm, ®ion_list, list) { ++ list_for_each_entry(alloc, &rm->alloc_list, list) { ++ start = alloc->paddr; ++ end = alloc->paddr + (alloc->pages >> PAGE_SHIFT); ++ ++ if (start >= paddr && end < paddr + size) ++ goto found; ++ } ++ } ++ ++ mutex_unlock(®ion_mutex); ++ return -EINVAL; ++ ++found: ++ omap_vram_free_allocation(alloc); ++ ++ mutex_unlock(®ion_mutex); ++ return 0; ++} ++EXPORT_SYMBOL(omap_vram_free); ++ ++static int _omap_vram_reserve(unsigned long paddr, unsigned pages) ++{ ++ struct vram_region *rm; ++ struct vram_alloc *alloc; ++ size_t size; ++ ++ size = pages << PAGE_SHIFT; ++ ++ list_for_each_entry(rm, ®ion_list, list) { ++ unsigned long start, end; ++ ++ DBG("checking region %lx %d\n", rm->paddr, rm->pages); ++ ++ if (region_mem_type(rm->paddr) != region_mem_type(paddr)) ++ continue; ++ ++ start = rm->paddr; ++ end = start + (rm->pages << PAGE_SHIFT) - 1; ++ if (start > paddr || end < paddr + size - 1) ++ continue; ++ ++ DBG("block ok, checking allocs\n"); ++ ++ list_for_each_entry(alloc, &rm->alloc_list, list) { ++ end = alloc->paddr - 1; ++ ++ if (start <= paddr && end >= paddr + size - 1) ++ goto found; ++ ++ start = alloc->paddr + (alloc->pages << PAGE_SHIFT); ++ } ++ ++ end = rm->paddr + (rm->pages << PAGE_SHIFT) - 1; ++ ++ if (!(start <= paddr && end >= paddr + size - 1)) ++ continue; ++found: ++ DBG("FOUND area start %lx, end %lx\n", start, end); ++ ++ if (omap_vram_create_allocation(rm, paddr, pages) == NULL) ++ return -ENOMEM; ++ ++ return 0; ++ } ++ ++ return -ENOMEM; ++} ++ ++int omap_vram_reserve(unsigned long paddr, size_t size) ++{ ++ unsigned pages; ++ int r; ++ ++ DBG("reserve mem paddr %08lx size %d\n", paddr, size); ++ ++ size = PAGE_ALIGN(size); ++ pages = size >> PAGE_SHIFT; ++ ++ mutex_lock(®ion_mutex); ++ ++ r = _omap_vram_reserve(paddr, pages); ++ ++ mutex_unlock(®ion_mutex); ++ ++ return r; ++} ++EXPORT_SYMBOL(omap_vram_reserve); ++ ++static int _omap_vram_alloc(int mtype, unsigned pages, unsigned long *paddr) ++{ ++ struct vram_region *rm; ++ struct vram_alloc *alloc; ++ ++ list_for_each_entry(rm, ®ion_list, list) { ++ unsigned long start, end; ++ ++ DBG("checking region %lx %d\n", rm->paddr, rm->pages); ++ ++ if (region_mem_type(rm->paddr) != mtype) ++ continue; ++ ++ start = rm->paddr; ++ ++ list_for_each_entry(alloc, &rm->alloc_list, list) { ++ end = alloc->paddr; ++ ++ if (end - start >= pages << PAGE_SHIFT) ++ goto found; ++ ++ start = alloc->paddr + (alloc->pages << PAGE_SHIFT); ++ } ++ ++ end = rm->paddr + (rm->pages << PAGE_SHIFT); ++found: ++ if (end - start < pages << PAGE_SHIFT) ++ continue; ++ ++ DBG("FOUND %lx, end %lx\n", start, end); ++ ++ alloc = omap_vram_create_allocation(rm, start, pages); ++ if (alloc == NULL) ++ return -ENOMEM; ++ ++ *paddr = start; ++ ++ return 0; ++ } ++ ++ return -ENOMEM; ++} ++ ++int omap_vram_alloc(int mtype, size_t size, unsigned long *paddr) ++{ ++ unsigned pages; ++ int r; ++ ++ BUG_ON(mtype > OMAPFB_MEMTYPE_MAX || !size); ++ ++ DBG("alloc mem type %d size %d\n", mtype, size); ++ ++ size = PAGE_ALIGN(size); ++ pages = size >> PAGE_SHIFT; ++ ++ mutex_lock(®ion_mutex); ++ ++ r = _omap_vram_alloc(mtype, pages, paddr); ++ ++ mutex_unlock(®ion_mutex); ++ ++ return r; ++} ++EXPORT_SYMBOL(omap_vram_alloc); ++ ++#ifdef CONFIG_PROC_FS ++static void *r_next(struct seq_file *m, void *v, loff_t *pos) ++{ ++ struct list_head *l = v; ++ ++ (*pos)++; ++ ++ if (list_is_last(l, ®ion_list)) ++ return NULL; ++ ++ return l->next; ++} ++ ++static void *r_start(struct seq_file *m, loff_t *pos) ++{ ++ loff_t p = *pos; ++ struct list_head *l = ®ion_list; ++ ++ mutex_lock(®ion_mutex); ++ ++ do { ++ l = l->next; ++ if (l == ®ion_list) ++ return NULL; ++ } while (p--); ++ ++ return l; ++} ++ ++static void r_stop(struct seq_file *m, void *v) ++{ ++ mutex_unlock(®ion_mutex); ++} ++ ++static int r_show(struct seq_file *m, void *v) ++{ ++ struct vram_region *vr; ++ struct vram_alloc *va; ++ unsigned size; ++ ++ vr = list_entry(v, struct vram_region, list); ++ ++ size = vr->pages << PAGE_SHIFT; ++ ++ seq_printf(m, "%08lx-%08lx (%d bytes)\n", ++ vr->paddr, vr->paddr + size - 1, ++ size); ++ ++ list_for_each_entry(va, &vr->alloc_list, list) { ++ size = va->pages << PAGE_SHIFT; ++ seq_printf(m, " %08lx-%08lx (%d bytes)\n", ++ va->paddr, va->paddr + size - 1, ++ size); ++ } ++ ++ ++ ++ return 0; ++} ++ ++static const struct seq_operations resource_op = { ++ .start = r_start, ++ .next = r_next, ++ .stop = r_stop, ++ .show = r_show, ++}; ++ ++static int vram_open(struct inode *inode, struct file *file) ++{ ++ return seq_open(file, &resource_op); ++} ++ ++static const struct file_operations proc_vram_operations = { ++ .open = vram_open, ++ .read = seq_read, ++ .llseek = seq_lseek, ++ .release = seq_release, ++}; ++ ++static int __init omap_vram_create_proc(void) ++{ ++ proc_create("omap-vram", 0, NULL, &proc_vram_operations); ++ ++ return 0; ++} ++#endif ++ ++static __init int omap_vram_init(void) ++{ ++ int i, r; ++ ++ for (i = 0; i < postponed_cnt; i++) ++ omap_vram_add_region(postponed_regions[i].paddr, ++ postponed_regions[i].size); ++ ++#ifdef CONFIG_PROC_FS ++ r = omap_vram_create_proc(); ++ if (r) ++ return -ENOMEM; ++#endif ++ ++ return 0; ++} ++ ++arch_initcall(omap_vram_init); ++ ++/* boottime vram alloc stuff */ ++ ++/* set from board file */ ++static u32 omapfb_sram_vram_start __initdata; ++static u32 omapfb_sram_vram_size __initdata; ++ ++/* set from board file */ ++static u32 omapfb_sdram_vram_start __initdata; ++static u32 omapfb_sdram_vram_size __initdata; ++ ++/* set from kernel cmdline */ ++static u32 omapfb_def_sdram_vram_size __initdata; ++static u32 omapfb_def_sdram_vram_start __initdata; ++ ++static void __init omapfb_early_vram(char **p) ++{ ++ omapfb_def_sdram_vram_size = memparse(*p, p); ++ if (**p == ',') ++ omapfb_def_sdram_vram_start = simple_strtoul((*p) + 1, p, 16); ++ ++ printk("omapfb_early_vram, %d, 0x%x\n", ++ omapfb_def_sdram_vram_size, ++ omapfb_def_sdram_vram_start); ++} ++__early_param("vram=", omapfb_early_vram); ++ ++/* ++ * Called from map_io. We need to call to this early enough so that we ++ * can reserve the fixed SDRAM regions before VM could get hold of them. ++ */ ++void __init omapfb_reserve_sdram(void) ++{ ++ struct bootmem_data *bdata; ++ unsigned long sdram_start, sdram_size; ++ u32 paddr; ++ u32 size = 0; ++ ++ /* cmdline arg overrides the board file definition */ ++ if (omapfb_def_sdram_vram_size) { ++ size = omapfb_def_sdram_vram_size; ++ paddr = omapfb_def_sdram_vram_start; ++ } ++ ++ if (!size) { ++ size = omapfb_sdram_vram_size; ++ paddr = omapfb_sdram_vram_start; ++ } ++ ++#ifdef CONFIG_OMAP2_DSS_VRAM_SIZE ++ if (!size) { ++ size = CONFIG_OMAP2_DSS_VRAM_SIZE * 1024 * 1024; ++ paddr = 0; ++ } ++#endif ++ ++ if (!size) ++ return; ++ ++ size = PAGE_ALIGN(size); ++ ++ bdata = NODE_DATA(0)->bdata; ++ sdram_start = bdata->node_min_pfn << PAGE_SHIFT; ++ sdram_size = (bdata->node_low_pfn << PAGE_SHIFT) - sdram_start; ++ ++ if (paddr) { ++ if ((paddr & ~PAGE_MASK) || paddr < sdram_start || ++ paddr + size > sdram_start + sdram_size) { ++ printk(KERN_ERR "Illegal SDRAM region for VRAM\n"); ++ return; ++ } ++ ++ reserve_bootmem(paddr, size, BOOTMEM_DEFAULT); ++ } else { ++ if (size > sdram_size) { ++ printk(KERN_ERR "Illegal SDRAM size for VRAM\n"); ++ return; ++ } ++ ++ paddr = virt_to_phys(alloc_bootmem_pages(size)); ++ BUG_ON(paddr & ~PAGE_MASK); ++ } ++ ++ omap_vram_add_region_postponed(paddr, size); ++ ++ pr_info("Reserving %u bytes SDRAM for VRAM\n", size); ++} ++ ++/* ++ * Called at sram init time, before anything is pushed to the SRAM stack. ++ * Because of the stack scheme, we will allocate everything from the ++ * start of the lowest address region to the end of SRAM. This will also ++ * include padding for page alignment and possible holes between regions. ++ * ++ * As opposed to the SDRAM case, we'll also do any dynamic allocations at ++ * this point, since the driver built as a module would have problem with ++ * freeing / reallocating the regions. ++ */ ++unsigned long __init omapfb_reserve_sram(unsigned long sram_pstart, ++ unsigned long sram_vstart, ++ unsigned long sram_size, ++ unsigned long pstart_avail, ++ unsigned long size_avail) ++{ ++ unsigned long pend_avail; ++ unsigned long reserved; ++ u32 paddr; ++ u32 size; ++ ++ paddr = omapfb_sram_vram_start; ++ size = omapfb_sram_vram_size; ++ ++ if (!size) ++ return 0; ++ ++ reserved = 0; ++ pend_avail = pstart_avail + size_avail; ++ ++ if (!paddr) { ++ /* Dynamic allocation */ ++ if ((size_avail & PAGE_MASK) < size) { ++ printk(KERN_ERR "Not enough SRAM for VRAM\n"); ++ return 0; ++ } ++ size_avail = (size_avail - size) & PAGE_MASK; ++ paddr = pstart_avail + size_avail; ++ } ++ ++ if (paddr < sram_pstart || ++ paddr + size > sram_pstart + sram_size) { ++ printk(KERN_ERR "Illegal SRAM region for VRAM\n"); ++ return 0; ++ } ++ ++ /* Reserve everything above the start of the region. */ ++ if (pend_avail - paddr > reserved) ++ reserved = pend_avail - paddr; ++ size_avail = pend_avail - reserved - pstart_avail; ++ ++ omap_vram_add_region_postponed(paddr, size); ++ ++ if (reserved) ++ pr_info("Reserving %lu bytes SRAM for VRAM\n", reserved); ++ ++ return reserved; ++} ++ ++void __init omap2_set_sdram_vram(u32 size, u32 start) ++{ ++ omapfb_sdram_vram_start = start; ++ omapfb_sdram_vram_size = size; ++} ++ ++void __init omap2_set_sram_vram(u32 size, u32 start) ++{ ++ omapfb_sram_vram_start = start; ++ omapfb_sram_vram_size = size; ++} ++ ++#endif ++ +diff --git a/arch/arm/plat-omap/vrfb.c b/arch/arm/plat-omap/vrfb.c +new file mode 100644 +index 0000000..7e0f8fc +--- /dev/null ++++ b/arch/arm/plat-omap/vrfb.c +@@ -0,0 +1,159 @@ ++#include <linux/kernel.h> ++#include <linux/module.h> ++#include <linux/ioport.h> ++#include <asm/io.h> ++ ++#include <mach/io.h> ++#include <mach/vrfb.h> ++ ++/*#define DEBUG*/ ++ ++#ifdef DEBUG ++#define DBG(format, ...) printk(KERN_DEBUG "VRFB: " format, ## __VA_ARGS__) ++#else ++#define DBG(format, ...) ++#endif ++ ++#define SMS_ROT_VIRT_BASE(context, rot) \ ++ (((context >= 4) ? 0xD0000000 : 0x70000000) \ ++ | 0x4000000 * (context) \ ++ | 0x1000000 * (rot)) ++ ++#define OMAP_VRFB_SIZE (2048 * 2048 * 4) ++ ++#define VRFB_PAGE_WIDTH_EXP 5 /* Assuming SDRAM pagesize= 1024 */ ++#define VRFB_PAGE_HEIGHT_EXP 5 /* 1024 = 2^5 * 2^5 */ ++#define VRFB_PAGE_WIDTH (1 << VRFB_PAGE_WIDTH_EXP) ++#define VRFB_PAGE_HEIGHT (1 << VRFB_PAGE_HEIGHT_EXP) ++#define SMS_IMAGEHEIGHT_OFFSET 16 ++#define SMS_IMAGEWIDTH_OFFSET 0 ++#define SMS_PH_OFFSET 8 ++#define SMS_PW_OFFSET 4 ++#define SMS_PS_OFFSET 0 ++ ++#define OMAP_SMS_BASE 0x6C000000 ++#define SMS_ROT_CONTROL(context) (OMAP_SMS_BASE + 0x180 + 0x10 * context) ++#define SMS_ROT_SIZE(context) (OMAP_SMS_BASE + 0x184 + 0x10 * context) ++#define SMS_ROT_PHYSICAL_BA(context) (OMAP_SMS_BASE + 0x188 + 0x10 * context) ++ ++#define VRFB_NUM_CTXS 12 ++/* bitmap of reserved contexts */ ++static unsigned ctx_map; ++ ++void omap_vrfb_adjust_size(u16 *width, u16 *height, ++ u8 bytespp) ++{ ++ *width = ALIGN(*width * bytespp, VRFB_PAGE_WIDTH) / bytespp; ++ *height = ALIGN(*height, VRFB_PAGE_HEIGHT); ++} ++EXPORT_SYMBOL(omap_vrfb_adjust_size); ++ ++void omap_vrfb_setup(struct vrfb *vrfb, unsigned long paddr, ++ u16 width, u16 height, ++ u8 bytespp) ++{ ++ unsigned pixel_size_exp; ++ u16 vrfb_width; ++ u16 vrfb_height; ++ u8 ctx = vrfb->context; ++ ++ DBG("omapfb_set_vrfb(%d, %lx, %dx%d, %d)\n", ctx, paddr, ++ width, height, bytespp); ++ ++ if (bytespp == 4) ++ pixel_size_exp = 2; ++ else if (bytespp == 2) ++ pixel_size_exp = 1; ++ else ++ BUG(); ++ ++ vrfb_width = ALIGN(width * bytespp, VRFB_PAGE_WIDTH) / bytespp; ++ vrfb_height = ALIGN(height, VRFB_PAGE_HEIGHT); ++ ++ DBG("vrfb w %u, h %u\n", vrfb_width, vrfb_height); ++ ++ omap_writel(paddr, SMS_ROT_PHYSICAL_BA(ctx)); ++ omap_writel((vrfb_width << SMS_IMAGEWIDTH_OFFSET) | ++ (vrfb_height << SMS_IMAGEHEIGHT_OFFSET), ++ SMS_ROT_SIZE(ctx)); ++ ++ omap_writel(pixel_size_exp << SMS_PS_OFFSET | ++ VRFB_PAGE_WIDTH_EXP << SMS_PW_OFFSET | ++ VRFB_PAGE_HEIGHT_EXP << SMS_PH_OFFSET, ++ SMS_ROT_CONTROL(ctx)); ++ ++ DBG("vrfb offset pixels %d, %d\n", ++ vrfb_width - width, vrfb_height - height); ++ ++ vrfb->xoffset = vrfb_width - width; ++ vrfb->yoffset = vrfb_height - height; ++ vrfb->bytespp = bytespp; ++} ++EXPORT_SYMBOL(omap_vrfb_setup); ++ ++void omap_vrfb_release_ctx(struct vrfb *vrfb) ++{ ++ int rot; ++ ++ if (vrfb->context == 0xff) ++ return; ++ ++ DBG("release ctx %d\n", vrfb->context); ++ ++ ctx_map &= ~(1 << vrfb->context); ++ ++ for (rot = 0; rot < 4; ++rot) { ++ if(vrfb->paddr[rot]) { ++ release_mem_region(vrfb->paddr[rot], OMAP_VRFB_SIZE); ++ vrfb->paddr[rot] = 0; ++ } ++ } ++ ++ vrfb->context = 0xff; ++} ++EXPORT_SYMBOL(omap_vrfb_release_ctx); ++ ++int omap_vrfb_request_ctx(struct vrfb *vrfb) ++{ ++ int rot; ++ u32 paddr; ++ u8 ctx; ++ ++ DBG("request ctx\n"); ++ ++ for (ctx = 0; ctx < VRFB_NUM_CTXS; ++ctx) ++ if ((ctx_map & (1 << ctx)) == 0) ++ break; ++ ++ if (ctx == VRFB_NUM_CTXS) { ++ printk(KERN_ERR "vrfb: no free contexts\n"); ++ return -EBUSY; ++ } ++ ++ DBG("found free ctx %d\n", ctx); ++ ++ ctx_map |= 1 << ctx; ++ ++ memset(vrfb, 0, sizeof(*vrfb)); ++ ++ vrfb->context = ctx; ++ ++ for (rot = 0; rot < 4; ++rot) { ++ paddr = SMS_ROT_VIRT_BASE(ctx, rot); ++ if (!request_mem_region(paddr, OMAP_VRFB_SIZE, "vrfb")) { ++ printk(KERN_ERR "vrfb: failed to reserve VRFB " ++ "area for ctx %d, rotation %d\n", ++ ctx, rot * 90); ++ omap_vrfb_release_ctx(vrfb); ++ return -ENOMEM; ++ } ++ ++ vrfb->paddr[rot] = paddr; ++ ++ DBG("VRFB %d/%d: %lx\n", ctx, rot*90, vrfb->paddr[rot]); ++ } ++ ++ return 0; ++} ++EXPORT_SYMBOL(omap_vrfb_request_ctx); ++ +diff --git a/drivers/video/Kconfig b/drivers/video/Kconfig +index fb19803..8b3752b 100644 +--- a/drivers/video/Kconfig ++++ b/drivers/video/Kconfig +@@ -2132,6 +2132,7 @@ config FB_MX3 + an LCD display with your i.MX31 system, say Y here. + + source "drivers/video/omap/Kconfig" ++source "drivers/video/omap2/Kconfig" + + source "drivers/video/backlight/Kconfig" + source "drivers/video/display/Kconfig" +diff --git a/drivers/video/Makefile b/drivers/video/Makefile +index 2a998ca..1db8dd4 100644 +--- a/drivers/video/Makefile ++++ b/drivers/video/Makefile +@@ -120,6 +120,7 @@ obj-$(CONFIG_FB_SM501) += sm501fb.o + obj-$(CONFIG_FB_XILINX) += xilinxfb.o + obj-$(CONFIG_FB_SH_MOBILE_LCDC) += sh_mobile_lcdcfb.o + obj-$(CONFIG_FB_OMAP) += omap/ ++obj-$(CONFIG_OMAP2_DSS) += omap2/ + obj-$(CONFIG_XEN_FBDEV_FRONTEND) += xen-fbfront.o + obj-$(CONFIG_FB_CARMINE) += carminefb.o + obj-$(CONFIG_FB_MB862XX) += mb862xx/ +diff --git a/drivers/video/omap2/Kconfig b/drivers/video/omap2/Kconfig +new file mode 100644 +index 0000000..89bf210 +--- /dev/null ++++ b/drivers/video/omap2/Kconfig +@@ -0,0 +1,3 @@ ++source "drivers/video/omap2/dss/Kconfig" ++source "drivers/video/omap2/displays/Kconfig" ++source "drivers/video/omap2/omapfb/Kconfig" +diff --git a/drivers/video/omap2/Makefile b/drivers/video/omap2/Makefile +new file mode 100644 +index 0000000..72134db +--- /dev/null ++++ b/drivers/video/omap2/Makefile +@@ -0,0 +1,4 @@ ++# OMAP2/3 Display Subsystem ++obj-y += dss/ ++obj-y += displays/ ++obj-y += omapfb/ +diff --git a/drivers/video/omap2/dss/Kconfig b/drivers/video/omap2/dss/Kconfig +new file mode 100644 +index 0000000..f2ce068 +--- /dev/null ++++ b/drivers/video/omap2/dss/Kconfig +@@ -0,0 +1,89 @@ ++menuconfig OMAP2_DSS ++ tristate "OMAP2/3 Display Subsystem support (EXPERIMENTAL)" ++ depends on ARCH_OMAP2 || ARCH_OMAP3 ++ help ++ OMAP2/3 Display Subsystem support. ++ ++if OMAP2_DSS ++ ++config OMAP2_DSS_VRAM_SIZE ++ int "VRAM size (MB)" ++ range 0 32 ++ default 4 ++ help ++ The amount of SDRAM to reserve at boot time for video RAM use. ++ This VRAM will be used by omapfb and other drivers that need ++ large continuous RAM area for video use. ++ ++ You can also set this with "vram=<bytes>" kernel argument, or ++ in the board file. ++ ++config OMAP2_DSS_DEBUG_SUPPORT ++ bool "Debug support" ++ default y ++ help ++ This enables debug messages. You need to enable printing ++ with 'debug' module parameter. ++ ++config OMAP2_DSS_RFBI ++ bool "RFBI support" ++ default n ++ help ++ MIPI DBI, or RFBI (Remote Framebuffer Interface), support. ++ ++config OMAP2_DSS_VENC ++ bool "VENC support" ++ default y ++ help ++ OMAP Video Encoder support. ++ ++config OMAP2_DSS_SDI ++ bool "SDI support" ++ depends on ARCH_OMAP3 ++ default n ++ help ++ SDI (Serial Display Interface) support. ++ ++config OMAP2_DSS_DSI ++ bool "DSI support" ++ depends on ARCH_OMAP3 ++ default n ++ help ++ MIPI DSI support. ++ ++config OMAP2_DSS_USE_DSI_PLL ++ bool "Use DSI PLL for PCLK (EXPERIMENTAL)" ++ default n ++ depends on OMAP2_DSS_DSI ++ help ++ Use DSI PLL to generate pixel clock. Currently only for DPI output. ++ DSI PLL can be used to generate higher and more precise pixel clocks. ++ ++config OMAP2_DSS_FAKE_VSYNC ++ bool "Fake VSYNC irq from manual update displays" ++ default n ++ help ++ If this is selected, DSI will generate a fake DISPC VSYNC interrupt ++ when DSI has sent a frame. This is only needed with DSI or RFBI ++ displays using manual mode, and you want VSYNC to, for example, ++ time animation. ++ ++config OMAP2_DSS_MIN_FCK_PER_PCK ++ int "Minimum FCK/PCK ratio (for scaling)" ++ range 0 32 ++ default 0 ++ help ++ This can be used to adjust the minimum FCK/PCK ratio. ++ ++ With this you can make sure that DISPC FCK is at least ++ n x PCK. Video plane scaling requires higher FCK than ++ normally. ++ ++ If this is set to 0, there's no extra constraint on the ++ DISPC FCK. However, the FCK will at minimum be ++ 2xPCK (if active matrix) or 3xPCK (if passive matrix). ++ ++ Max FCK is 173MHz, so this doesn't work if your PCK ++ is very high. ++ ++endif +diff --git a/drivers/video/omap2/dss/Makefile b/drivers/video/omap2/dss/Makefile +new file mode 100644 +index 0000000..980c72c +--- /dev/null ++++ b/drivers/video/omap2/dss/Makefile +@@ -0,0 +1,6 @@ ++obj-$(CONFIG_OMAP2_DSS) += omapdss.o ++omapdss-y := core.o dss.o dispc.o dpi.o display.o manager.o overlay.o ++omapdss-$(CONFIG_OMAP2_DSS_RFBI) += rfbi.o ++omapdss-$(CONFIG_OMAP2_DSS_VENC) += venc.o ++omapdss-$(CONFIG_OMAP2_DSS_SDI) += sdi.o ++omapdss-$(CONFIG_OMAP2_DSS_DSI) += dsi.o +diff --git a/drivers/video/omap2/dss/core.c b/drivers/video/omap2/dss/core.c +new file mode 100644 +index 0000000..ae7cd06 +--- /dev/null ++++ b/drivers/video/omap2/dss/core.c +@@ -0,0 +1,641 @@ ++/* ++ * linux/drivers/video/omap2/dss/core.c ++ * ++ * Copyright (C) 2009 Nokia Corporation ++ * Author: Tomi Valkeinen <tomi.valkeinen@nokia.com> ++ * ++ * Some code and ideas taken from drivers/video/omap/ driver ++ * by Imre Deak. ++ * ++ * This program is free software; you can redistribute it and/or modify it ++ * under the terms of the GNU General Public License version 2 as published by ++ * the Free Software Foundation. ++ * ++ * This program is distributed in the hope that it will be useful, but WITHOUT ++ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or ++ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for ++ * more details. ++ * ++ * You should have received a copy of the GNU General Public License along with ++ * this program. If not, see <http://www.gnu.org/licenses/>. ++ */ ++ ++#define DSS_SUBSYS_NAME "CORE" ++ ++#include <linux/kernel.h> ++#include <linux/module.h> ++#include <linux/clk.h> ++#include <linux/err.h> ++#include <linux/platform_device.h> ++#include <linux/seq_file.h> ++#include <linux/debugfs.h> ++#include <linux/io.h> ++ ++#include <mach/display.h> ++#include <mach/clock.h> ++ ++#include "dss.h" ++ ++static struct { ++ struct platform_device *pdev; ++ unsigned ctx_id; ++ ++ struct clk *dss_ick; ++ struct clk *dss1_fck; ++ struct clk *dss2_fck; ++ struct clk *dss_54m_fck; ++ struct clk *dss_96m_fck; ++ unsigned num_clks_enabled; ++} core; ++ ++static void dss_clk_enable_all_no_ctx(void); ++static void dss_clk_disable_all_no_ctx(void); ++static void dss_clk_enable_no_ctx(enum dss_clock clks); ++static void dss_clk_disable_no_ctx(enum dss_clock clks); ++ ++static char *def_disp_name; ++module_param_named(def_disp, def_disp_name, charp, 0); ++MODULE_PARM_DESC(def_disp_name, "default display name"); ++ ++#ifdef DEBUG ++unsigned int dss_debug; ++module_param_named(debug, dss_debug, bool, 0644); ++#endif ++ ++/* CONTEXT */ ++static unsigned dss_get_ctx_id(void) ++{ ++ struct omap_dss_board_info *pdata = core.pdev->dev.platform_data; ++ ++ if (!pdata->get_last_off_on_transaction_id) ++ return 0; ++ ++ return pdata->get_last_off_on_transaction_id(&core.pdev->dev); ++} ++ ++int dss_need_ctx_restore(void) ++{ ++ int id = dss_get_ctx_id(); ++ ++ if (id != core.ctx_id) { ++ DSSDBG("ctx id %u -> id %u\n", ++ core.ctx_id, id); ++ core.ctx_id = id; ++ return 1; ++ } else { ++ return 0; ++ } ++} ++ ++static void save_all_ctx(void) ++{ ++ DSSDBG("save context\n"); ++ ++ dss_clk_enable_no_ctx(DSS_CLK_ICK | DSS_CLK_FCK1); ++ ++ dss_save_context(); ++ dispc_save_context(); ++#ifdef CONFIG_OMAP2_DSS_DSI ++ dsi_save_context(); ++#endif ++ ++ dss_clk_disable_no_ctx(DSS_CLK_ICK | DSS_CLK_FCK1); ++} ++ ++static void restore_all_ctx(void) ++{ ++ DSSDBG("restore context\n"); ++ ++ dss_clk_enable_all_no_ctx(); ++ ++ dss_restore_context(); ++ dispc_restore_context(); ++#ifdef CONFIG_OMAP2_DSS_DSI ++ dsi_restore_context(); ++#endif ++ ++ dss_clk_disable_all_no_ctx(); ++} ++ ++/* CLOCKS */ ++void dss_dump_clocks(struct seq_file *s) ++{ ++ int i; ++ struct clk *clocks[5] = { ++ core.dss_ick, ++ core.dss1_fck, ++ core.dss2_fck, ++ core.dss_54m_fck, ++ core.dss_96m_fck ++ }; ++ ++ seq_printf(s, "- dss -\n"); ++ ++ seq_printf(s, "internal clk count\t%u\n", core.num_clks_enabled); ++ ++ for (i = 0; i < 5; i++) { ++ if (!clocks[i]) ++ continue; ++ seq_printf(s, "%-15s\t%lu\t%d\n", ++ clocks[i]->name, ++ clk_get_rate(clocks[i]), ++ clocks[i]->usecount); ++ } ++} ++ ++static int dss_get_clocks(void) ++{ ++ const struct { ++ struct clk **clock; ++ char *omap2_name; ++ char *omap3_name; ++ } clocks[5] = { ++ { &core.dss_ick, "dss_ick", "dss_ick" }, /* L3 & L4 ick */ ++ { &core.dss1_fck, "dss1_fck", "dss1_alwon_fck" }, ++ { &core.dss2_fck, "dss2_fck", "dss2_alwon_fck" }, ++ { &core.dss_54m_fck, "dss_54m_fck", "dss_tv_fck" }, ++ { &core.dss_96m_fck, NULL, "dss_96m_fck" }, ++ }; ++ ++ int r = 0; ++ int i; ++ const int num_clocks = 5; ++ ++ for (i = 0; i < num_clocks; i++) ++ *clocks[i].clock = NULL; ++ ++ for (i = 0; i < num_clocks; i++) { ++ struct clk *clk; ++ const char *clk_name; ++ ++ clk_name = cpu_is_omap34xx() ? clocks[i].omap3_name ++ : clocks[i].omap2_name; ++ ++ if (!clk_name) ++ continue; ++ ++ clk = clk_get(NULL, clk_name); ++ ++ if (IS_ERR(clk)) { ++ DSSERR("can't get clock %s", clk_name); ++ r = PTR_ERR(clk); ++ goto err; ++ } ++ ++ DSSDBG("clk %s, rate %ld\n", ++ clk_name, clk_get_rate(clk)); ++ ++ *clocks[i].clock = clk; ++ } ++ ++ return 0; ++ ++err: ++ for (i = 0; i < num_clocks; i++) { ++ if (!IS_ERR(*clocks[i].clock)) ++ clk_put(*clocks[i].clock); ++ } ++ ++ return r; ++} ++ ++static void dss_put_clocks(void) ++{ ++ if (core.dss_96m_fck) ++ clk_put(core.dss_96m_fck); ++ clk_put(core.dss_54m_fck); ++ clk_put(core.dss1_fck); ++ clk_put(core.dss2_fck); ++ clk_put(core.dss_ick); ++} ++ ++unsigned long dss_clk_get_rate(enum dss_clock clk) ++{ ++ switch (clk) { ++ case DSS_CLK_ICK: ++ return clk_get_rate(core.dss_ick); ++ case DSS_CLK_FCK1: ++ return clk_get_rate(core.dss1_fck); ++ case DSS_CLK_FCK2: ++ return clk_get_rate(core.dss2_fck); ++ case DSS_CLK_54M: ++ return clk_get_rate(core.dss_54m_fck); ++ case DSS_CLK_96M: ++ return clk_get_rate(core.dss_96m_fck); ++ } ++ ++ BUG(); ++ return 0; ++} ++ ++static unsigned count_clk_bits(enum dss_clock clks) ++{ ++ unsigned num_clks = 0; ++ ++ if (clks & DSS_CLK_ICK) ++ ++num_clks; ++ if (clks & DSS_CLK_FCK1) ++ ++num_clks; ++ if (clks & DSS_CLK_FCK2) ++ ++num_clks; ++ if (clks & DSS_CLK_54M) ++ ++num_clks; ++ if (clks & DSS_CLK_96M) ++ ++num_clks; ++ ++ return num_clks; ++} ++ ++static void dss_clk_enable_no_ctx(enum dss_clock clks) ++{ ++ unsigned num_clks = count_clk_bits(clks); ++ ++ if (clks & DSS_CLK_ICK) ++ clk_enable(core.dss_ick); ++ if (clks & DSS_CLK_FCK1) ++ clk_enable(core.dss1_fck); ++ if (clks & DSS_CLK_FCK2) ++ clk_enable(core.dss2_fck); ++ if (clks & DSS_CLK_54M) ++ clk_enable(core.dss_54m_fck); ++ if (clks & DSS_CLK_96M) ++ clk_enable(core.dss_96m_fck); ++ ++ core.num_clks_enabled += num_clks; ++} ++ ++void dss_clk_enable(enum dss_clock clks) ++{ ++ dss_clk_enable_no_ctx(clks); ++ ++ if (cpu_is_omap34xx() && dss_need_ctx_restore()) ++ restore_all_ctx(); ++} ++ ++static void dss_clk_disable_no_ctx(enum dss_clock clks) ++{ ++ unsigned num_clks = count_clk_bits(clks); ++ ++ if (clks & DSS_CLK_ICK) ++ clk_disable(core.dss_ick); ++ if (clks & DSS_CLK_FCK1) ++ clk_disable(core.dss1_fck); ++ if (clks & DSS_CLK_FCK2) ++ clk_disable(core.dss2_fck); ++ if (clks & DSS_CLK_54M) ++ clk_disable(core.dss_54m_fck); ++ if (clks & DSS_CLK_96M) ++ clk_disable(core.dss_96m_fck); ++ ++ core.num_clks_enabled -= num_clks; ++} ++ ++void dss_clk_disable(enum dss_clock clks) ++{ ++ if (cpu_is_omap34xx()) { ++ unsigned num_clks = count_clk_bits(clks); ++ ++ BUG_ON(core.num_clks_enabled < num_clks); ++ ++ if (core.num_clks_enabled == num_clks) ++ save_all_ctx(); ++ } ++ ++ dss_clk_disable_no_ctx(clks); ++} ++ ++static void dss_clk_enable_all_no_ctx(void) ++{ ++ enum dss_clock clks; ++ ++ clks = DSS_CLK_ICK | DSS_CLK_FCK1 | DSS_CLK_FCK2 | DSS_CLK_54M; ++ if (cpu_is_omap34xx()) ++ clks |= DSS_CLK_96M; ++ dss_clk_enable_no_ctx(clks); ++} ++ ++static void dss_clk_disable_all_no_ctx(void) ++{ ++ enum dss_clock clks; ++ ++ clks = DSS_CLK_ICK | DSS_CLK_FCK1 | DSS_CLK_FCK2 | DSS_CLK_54M; ++ if (cpu_is_omap34xx()) ++ clks |= DSS_CLK_96M; ++ dss_clk_disable_no_ctx(clks); ++} ++ ++static void dss_clk_disable_all(void) ++{ ++ enum dss_clock clks; ++ ++ clks = DSS_CLK_ICK | DSS_CLK_FCK1 | DSS_CLK_FCK2 | DSS_CLK_54M; ++ if (cpu_is_omap34xx()) ++ clks |= DSS_CLK_96M; ++ dss_clk_disable(clks); ++} ++ ++/* DEBUGFS */ ++#if defined(CONFIG_DEBUG_FS) && defined(CONFIG_OMAP2_DSS_DEBUG_SUPPORT) ++static void dss_debug_dump_clocks(struct seq_file *s) ++{ ++ dss_dump_clocks(s); ++ dispc_dump_clocks(s); ++#ifdef CONFIG_OMAP2_DSS_DSI ++ dsi_dump_clocks(s); ++#endif ++} ++ ++static int dss_debug_show(struct seq_file *s, void *unused) ++{ ++ void (*func)(struct seq_file *) = s->private; ++ func(s); ++ return 0; ++} ++ ++static int dss_debug_open(struct inode *inode, struct file *file) ++{ ++ return single_open(file, dss_debug_show, inode->i_private); ++} ++ ++static const struct file_operations dss_debug_fops = { ++ .open = dss_debug_open, ++ .read = seq_read, ++ .llseek = seq_lseek, ++ .release = single_release, ++}; ++ ++static struct dentry *dss_debugfs_dir; ++ ++static int dss_initialize_debugfs(void) ++{ ++ dss_debugfs_dir = debugfs_create_dir("omapdss", NULL); ++ if (IS_ERR(dss_debugfs_dir)) { ++ int err = PTR_ERR(dss_debugfs_dir); ++ dss_debugfs_dir = NULL; ++ return err; ++ } ++ ++ debugfs_create_file("clk", S_IRUGO, dss_debugfs_dir, ++ &dss_debug_dump_clocks, &dss_debug_fops); ++ ++ debugfs_create_file("dss", S_IRUGO, dss_debugfs_dir, ++ &dss_dump_regs, &dss_debug_fops); ++ debugfs_create_file("dispc", S_IRUGO, dss_debugfs_dir, ++ &dispc_dump_regs, &dss_debug_fops); ++#ifdef CONFIG_OMAP2_DSS_RFBI ++ debugfs_create_file("rfbi", S_IRUGO, dss_debugfs_dir, ++ &rfbi_dump_regs, &dss_debug_fops); ++#endif ++#ifdef CONFIG_OMAP2_DSS_DSI ++ debugfs_create_file("dsi", S_IRUGO, dss_debugfs_dir, ++ &dsi_dump_regs, &dss_debug_fops); ++#endif ++ return 0; ++} ++ ++static void dss_uninitialize_debugfs(void) ++{ ++ if (dss_debugfs_dir) ++ debugfs_remove_recursive(dss_debugfs_dir); ++} ++#endif /* CONFIG_DEBUG_FS && CONFIG_OMAP2_DSS_DEBUG_SUPPORT */ ++ ++ ++/* DSI powers */ ++int dss_dsi_power_up(void) ++{ ++ struct omap_dss_board_info *pdata = core.pdev->dev.platform_data; ++ ++ if (!pdata->dsi_power_up) ++ return 0; /* presume power is always on then */ ++ ++ return pdata->dsi_power_up(); ++} ++ ++void dss_dsi_power_down(void) ++{ ++ struct omap_dss_board_info *pdata = core.pdev->dev.platform_data; ++ ++ if (!pdata->dsi_power_down) ++ return; ++ ++ pdata->dsi_power_down(); ++} ++ ++ ++ ++/* PLATFORM DEVICE */ ++static int omap_dss_probe(struct platform_device *pdev) ++{ ++ int skip_init = 0; ++ int r; ++ ++ core.pdev = pdev; ++ ++ r = dss_get_clocks(); ++ if (r) ++ goto fail0; ++ ++ dss_clk_enable_all_no_ctx(); ++ ++ core.ctx_id = dss_get_ctx_id(); ++ DSSDBG("initial ctx id %u\n", core.ctx_id); ++ ++#ifdef CONFIG_FB_OMAP_BOOTLOADER_INIT ++ /* DISPC_CONTROL */ ++ if (omap_readl(0x48050440) & 1) /* LCD enabled? */ ++ skip_init = 1; ++#endif ++ ++ r = dss_init(skip_init); ++ if (r) { ++ DSSERR("Failed to initialize DSS\n"); ++ goto fail0; ++ } ++ ++#ifdef CONFIG_OMAP2_DSS_RFBI ++ r = rfbi_init(); ++ if (r) { ++ DSSERR("Failed to initialize rfbi\n"); ++ goto fail0; ++ } ++#endif ++ ++ r = dpi_init(); ++ if (r) { ++ DSSERR("Failed to initialize dpi\n"); ++ goto fail0; ++ } ++ ++ r = dispc_init(); ++ if (r) { ++ DSSERR("Failed to initialize dispc\n"); ++ goto fail0; ++ } ++#ifdef CONFIG_OMAP2_DSS_VENC ++ r = venc_init(); ++ if (r) { ++ DSSERR("Failed to initialize venc\n"); ++ goto fail0; ++ } ++#endif ++ if (cpu_is_omap34xx()) { ++#ifdef CONFIG_OMAP2_DSS_SDI ++ r = sdi_init(skip_init); ++ if (r) { ++ DSSERR("Failed to initialize SDI\n"); ++ goto fail0; ++ } ++#endif ++#ifdef CONFIG_OMAP2_DSS_DSI ++ r = dsi_init(); ++ if (r) { ++ DSSERR("Failed to initialize DSI\n"); ++ goto fail0; ++ } ++#endif ++ } ++ ++#if defined(CONFIG_DEBUG_FS) && defined(CONFIG_OMAP2_DSS_DEBUG_SUPPORT) ++ r = dss_initialize_debugfs(); ++ if (r) ++ goto fail0; ++#endif ++ ++ dss_init_displays(pdev); ++ dss_init_overlay_managers(pdev); ++ dss_init_overlays(pdev, def_disp_name); ++ ++ dss_clk_disable_all(); ++ ++ return 0; ++ ++ /* XXX fail correctly */ ++fail0: ++ return r; ++} ++ ++static int omap_dss_remove(struct platform_device *pdev) ++{ ++ int c; ++ ++ dss_uninit_overlays(pdev); ++ dss_uninit_overlay_managers(pdev); ++ dss_uninit_displays(pdev); ++ ++#if defined(CONFIG_DEBUG_FS) && defined(CONFIG_OMAP2_DSS_DEBUG_SUPPORT) ++ dss_uninitialize_debugfs(); ++#endif ++ ++#ifdef CONFIG_OMAP2_DSS_VENC ++ venc_exit(); ++#endif ++ dispc_exit(); ++ dpi_exit(); ++#ifdef CONFIG_OMAP2_DSS_RFBI ++ rfbi_exit(); ++#endif ++ if (cpu_is_omap34xx()) { ++#ifdef CONFIG_OMAP2_DSS_DSI ++ dsi_exit(); ++#endif ++#ifdef CONFIG_OMAP2_DSS_SDI ++ sdi_exit(); ++#endif ++ } ++ ++ dss_exit(); ++ ++ /* these should be removed at some point */ ++ c = core.dss_ick->usecount; ++ if (c > 0) { ++ DSSERR("warning: dss_ick usecount %d, disabling\n", c); ++ while (c-- > 0) ++ clk_disable(core.dss_ick); ++ } ++ ++ c = core.dss1_fck->usecount; ++ if (c > 0) { ++ DSSERR("warning: dss1_fck usecount %d, disabling\n", c); ++ while (c-- > 0) ++ clk_disable(core.dss1_fck); ++ } ++ ++ c = core.dss2_fck->usecount; ++ if (c > 0) { ++ DSSERR("warning: dss2_fck usecount %d, disabling\n", c); ++ while (c-- > 0) ++ clk_disable(core.dss2_fck); ++ } ++ ++ c = core.dss_54m_fck->usecount; ++ if (c > 0) { ++ DSSERR("warning: dss_54m_fck usecount %d, disabling\n", c); ++ while (c-- > 0) ++ clk_disable(core.dss_54m_fck); ++ } ++ ++ if (core.dss_96m_fck) { ++ c = core.dss_96m_fck->usecount; ++ if (c > 0) { ++ DSSERR("warning: dss_96m_fck usecount %d, disabling\n", ++ c); ++ while (c-- > 0) ++ clk_disable(core.dss_96m_fck); ++ } ++ } ++ ++ dss_put_clocks(); ++ ++ return 0; ++} ++ ++static void omap_dss_shutdown(struct platform_device *pdev) ++{ ++ DSSDBG("shutdown\n"); ++} ++ ++static int omap_dss_suspend(struct platform_device *pdev, pm_message_t state) ++{ ++ DSSDBG("suspend %d\n", state.event); ++ ++ return dss_suspend_all_displays(); ++} ++ ++static int omap_dss_resume(struct platform_device *pdev) ++{ ++ DSSDBG("resume\n"); ++ ++ return dss_resume_all_displays(); ++} ++ ++static struct platform_driver omap_dss_driver = { ++ .probe = omap_dss_probe, ++ .remove = omap_dss_remove, ++ .shutdown = omap_dss_shutdown, ++ .suspend = omap_dss_suspend, ++ .resume = omap_dss_resume, ++ .driver = { ++ .name = "omapdss", ++ .owner = THIS_MODULE, ++ }, ++}; ++ ++static int __init omap_dss_init(void) ++{ ++ return platform_driver_register(&omap_dss_driver); ++} ++ ++static void __exit omap_dss_exit(void) ++{ ++ platform_driver_unregister(&omap_dss_driver); ++} ++ ++subsys_initcall(omap_dss_init); ++module_exit(omap_dss_exit); ++ ++ ++MODULE_AUTHOR("Tomi Valkeinen <tomi.valkeinen@nokia.com>"); ++MODULE_DESCRIPTION("OMAP2/3 Display Subsystem"); ++MODULE_LICENSE("GPL v2"); ++ +diff --git a/drivers/video/omap2/dss/dispc.c b/drivers/video/omap2/dss/dispc.c +new file mode 100644 +index 0000000..ffb5648 +--- /dev/null ++++ b/drivers/video/omap2/dss/dispc.c +@@ -0,0 +1,2968 @@ ++/* ++ * linux/drivers/video/omap2/dss/dispc.c ++ * ++ * Copyright (C) 2009 Nokia Corporation ++ * Author: Tomi Valkeinen <tomi.valkeinen@nokia.com> ++ * ++ * Some code and ideas taken from drivers/video/omap/ driver ++ * by Imre Deak. ++ * ++ * This program is free software; you can redistribute it and/or modify it ++ * under the terms of the GNU General Public License version 2 as published by ++ * the Free Software Foundation. ++ * ++ * This program is distributed in the hope that it will be useful, but WITHOUT ++ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or ++ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for ++ * more details. ++ * ++ * You should have received a copy of the GNU General Public License along with ++ * this program. If not, see <http://www.gnu.org/licenses/>. ++ */ ++ ++#define DSS_SUBSYS_NAME "DISPC" ++ ++#include <linux/kernel.h> ++#include <linux/dma-mapping.h> ++#include <linux/vmalloc.h> ++#include <linux/clk.h> ++#include <linux/io.h> ++#include <linux/jiffies.h> ++#include <linux/seq_file.h> ++#include <linux/delay.h> ++#include <linux/workqueue.h> ++ ++#include <mach/sram.h> ++#include <mach/board.h> ++#include <mach/clock.h> ++ ++#include <mach/display.h> ++ ++#include "dss.h" ++ ++/* DISPC */ ++#define DISPC_BASE 0x48050400 ++ ++#define DISPC_SZ_REGS SZ_1K ++ ++struct dispc_reg { u16 idx; }; ++ ++#define DISPC_REG(idx) ((const struct dispc_reg) { idx }) ++ ++/* DISPC common */ ++#define DISPC_REVISION DISPC_REG(0x0000) ++#define DISPC_SYSCONFIG DISPC_REG(0x0010) ++#define DISPC_SYSSTATUS DISPC_REG(0x0014) ++#define DISPC_IRQSTATUS DISPC_REG(0x0018) ++#define DISPC_IRQENABLE DISPC_REG(0x001C) ++#define DISPC_CONTROL DISPC_REG(0x0040) ++#define DISPC_CONFIG DISPC_REG(0x0044) ++#define DISPC_CAPABLE DISPC_REG(0x0048) ++#define DISPC_DEFAULT_COLOR0 DISPC_REG(0x004C) ++#define DISPC_DEFAULT_COLOR1 DISPC_REG(0x0050) ++#define DISPC_TRANS_COLOR0 DISPC_REG(0x0054) ++#define DISPC_TRANS_COLOR1 DISPC_REG(0x0058) ++#define DISPC_LINE_STATUS DISPC_REG(0x005C) ++#define DISPC_LINE_NUMBER DISPC_REG(0x0060) ++#define DISPC_TIMING_H DISPC_REG(0x0064) ++#define DISPC_TIMING_V DISPC_REG(0x0068) ++#define DISPC_POL_FREQ DISPC_REG(0x006C) ++#define DISPC_DIVISOR DISPC_REG(0x0070) ++#define DISPC_GLOBAL_ALPHA DISPC_REG(0x0074) ++#define DISPC_SIZE_DIG DISPC_REG(0x0078) ++#define DISPC_SIZE_LCD DISPC_REG(0x007C) ++ ++/* DISPC GFX plane */ ++#define DISPC_GFX_BA0 DISPC_REG(0x0080) ++#define DISPC_GFX_BA1 DISPC_REG(0x0084) ++#define DISPC_GFX_POSITION DISPC_REG(0x0088) ++#define DISPC_GFX_SIZE DISPC_REG(0x008C) ++#define DISPC_GFX_ATTRIBUTES DISPC_REG(0x00A0) ++#define DISPC_GFX_FIFO_THRESHOLD DISPC_REG(0x00A4) ++#define DISPC_GFX_FIFO_SIZE_STATUS DISPC_REG(0x00A8) ++#define DISPC_GFX_ROW_INC DISPC_REG(0x00AC) ++#define DISPC_GFX_PIXEL_INC DISPC_REG(0x00B0) ++#define DISPC_GFX_WINDOW_SKIP DISPC_REG(0x00B4) ++#define DISPC_GFX_TABLE_BA DISPC_REG(0x00B8) ++ ++#define DISPC_DATA_CYCLE1 DISPC_REG(0x01D4) ++#define DISPC_DATA_CYCLE2 DISPC_REG(0x01D8) ++#define DISPC_DATA_CYCLE3 DISPC_REG(0x01DC) ++ ++#define DISPC_CPR_COEF_R DISPC_REG(0x0220) ++#define DISPC_CPR_COEF_G DISPC_REG(0x0224) ++#define DISPC_CPR_COEF_B DISPC_REG(0x0228) ++ ++#define DISPC_GFX_PRELOAD DISPC_REG(0x022C) ++ ++/* DISPC Video plane, n = 0 for VID1 and n = 1 for VID2 */ ++#define DISPC_VID_REG(n, idx) DISPC_REG(0x00BC + (n)*0x90 + idx) ++ ++#define DISPC_VID_BA0(n) DISPC_VID_REG(n, 0x0000) ++#define DISPC_VID_BA1(n) DISPC_VID_REG(n, 0x0004) ++#define DISPC_VID_POSITION(n) DISPC_VID_REG(n, 0x0008) ++#define DISPC_VID_SIZE(n) DISPC_VID_REG(n, 0x000C) ++#define DISPC_VID_ATTRIBUTES(n) DISPC_VID_REG(n, 0x0010) ++#define DISPC_VID_FIFO_THRESHOLD(n) DISPC_VID_REG(n, 0x0014) ++#define DISPC_VID_FIFO_SIZE_STATUS(n) DISPC_VID_REG(n, 0x0018) ++#define DISPC_VID_ROW_INC(n) DISPC_VID_REG(n, 0x001C) ++#define DISPC_VID_PIXEL_INC(n) DISPC_VID_REG(n, 0x0020) ++#define DISPC_VID_FIR(n) DISPC_VID_REG(n, 0x0024) ++#define DISPC_VID_PICTURE_SIZE(n) DISPC_VID_REG(n, 0x0028) ++#define DISPC_VID_ACCU0(n) DISPC_VID_REG(n, 0x002C) ++#define DISPC_VID_ACCU1(n) DISPC_VID_REG(n, 0x0030) ++ ++/* coef index i = {0, 1, 2, 3, 4, 5, 6, 7} */ ++#define DISPC_VID_FIR_COEF_H(n, i) DISPC_REG(0x00F0 + (n)*0x90 + (i)*0x8) ++/* coef index i = {0, 1, 2, 3, 4, 5, 6, 7} */ ++#define DISPC_VID_FIR_COEF_HV(n, i) DISPC_REG(0x00F4 + (n)*0x90 + (i)*0x8) ++/* coef index i = {0, 1, 2, 3, 4} */ ++#define DISPC_VID_CONV_COEF(n, i) DISPC_REG(0x0130 + (n)*0x90 + (i)*0x4) ++/* coef index i = {0, 1, 2, 3, 4, 5, 6, 7} */ ++#define DISPC_VID_FIR_COEF_V(n, i) DISPC_REG(0x01E0 + (n)*0x20 + (i)*0x4) ++ ++#define DISPC_VID_PRELOAD(n) DISPC_REG(0x230 + (n)*0x04) ++ ++ ++#define DISPC_IRQ_MASK_ERROR (DISPC_IRQ_GFX_FIFO_UNDERFLOW | \ ++ DISPC_IRQ_OCP_ERR | \ ++ DISPC_IRQ_VID1_FIFO_UNDERFLOW | \ ++ DISPC_IRQ_VID2_FIFO_UNDERFLOW | \ ++ DISPC_IRQ_SYNC_LOST | \ ++ DISPC_IRQ_SYNC_LOST_DIGIT) ++ ++#define DISPC_MAX_NR_ISRS 8 ++ ++struct omap_dispc_isr_data { ++ omap_dispc_isr_t isr; ++ void *arg; ++ u32 mask; ++}; ++ ++#define REG_GET(idx, start, end) \ ++ FLD_GET(dispc_read_reg(idx), start, end) ++ ++#define REG_FLD_MOD(idx, val, start, end) \ ++ dispc_write_reg(idx, FLD_MOD(dispc_read_reg(idx), val, start, end)) ++ ++static const struct dispc_reg dispc_reg_att[] = { DISPC_GFX_ATTRIBUTES, ++ DISPC_VID_ATTRIBUTES(0), ++ DISPC_VID_ATTRIBUTES(1) }; ++ ++static struct { ++ void __iomem *base; ++ ++ struct clk *dpll4_m4_ck; ++ ++ spinlock_t irq_lock; ++ ++ unsigned long cache_req_pck; ++ unsigned long cache_prate; ++ struct dispc_clock_info cache_cinfo; ++ ++ u32 irq_error_mask; ++ struct omap_dispc_isr_data registered_isr[DISPC_MAX_NR_ISRS]; ++ ++ spinlock_t error_lock; ++ u32 error_irqs; ++ struct work_struct error_work; ++ ++ u32 ctx[DISPC_SZ_REGS / sizeof(u32)]; ++} dispc; ++ ++static void omap_dispc_set_irqs(void); ++ ++static inline void dispc_write_reg(const struct dispc_reg idx, u32 val) ++{ ++ __raw_writel(val, dispc.base + idx.idx); ++} ++ ++static inline u32 dispc_read_reg(const struct dispc_reg idx) ++{ ++ return __raw_readl(dispc.base + idx.idx); ++} ++ ++#define SR(reg) \ ++ dispc.ctx[(DISPC_##reg).idx / sizeof(u32)] = dispc_read_reg(DISPC_##reg) ++#define RR(reg) \ ++ dispc_write_reg(DISPC_##reg, dispc.ctx[(DISPC_##reg).idx / sizeof(u32)]) ++ ++void dispc_save_context(void) ++{ ++ if (cpu_is_omap24xx()) ++ return; ++ ++ SR(SYSCONFIG); ++ SR(IRQENABLE); ++ SR(CONTROL); ++ SR(CONFIG); ++ SR(DEFAULT_COLOR0); ++ SR(DEFAULT_COLOR1); ++ SR(TRANS_COLOR0); ++ SR(TRANS_COLOR1); ++ SR(LINE_NUMBER); ++ SR(TIMING_H); ++ SR(TIMING_V); ++ SR(POL_FREQ); ++ SR(DIVISOR); ++ SR(GLOBAL_ALPHA); ++ SR(SIZE_DIG); ++ SR(SIZE_LCD); ++ ++ SR(GFX_BA0); ++ SR(GFX_BA1); ++ SR(GFX_POSITION); ++ SR(GFX_SIZE); ++ SR(GFX_ATTRIBUTES); ++ SR(GFX_FIFO_THRESHOLD); ++ SR(GFX_ROW_INC); ++ SR(GFX_PIXEL_INC); ++ SR(GFX_WINDOW_SKIP); ++ SR(GFX_TABLE_BA); ++ ++ SR(DATA_CYCLE1); ++ SR(DATA_CYCLE2); ++ SR(DATA_CYCLE3); ++ ++ SR(CPR_COEF_R); ++ SR(CPR_COEF_G); ++ SR(CPR_COEF_B); ++ ++ SR(GFX_PRELOAD); ++ ++ /* VID1 */ ++ SR(VID_BA0(0)); ++ SR(VID_BA1(0)); ++ SR(VID_POSITION(0)); ++ SR(VID_SIZE(0)); ++ SR(VID_ATTRIBUTES(0)); ++ SR(VID_FIFO_THRESHOLD(0)); ++ SR(VID_ROW_INC(0)); ++ SR(VID_PIXEL_INC(0)); ++ SR(VID_FIR(0)); ++ SR(VID_PICTURE_SIZE(0)); ++ SR(VID_ACCU0(0)); ++ SR(VID_ACCU1(0)); ++ ++ SR(VID_FIR_COEF_H(0, 0)); ++ SR(VID_FIR_COEF_H(0, 1)); ++ SR(VID_FIR_COEF_H(0, 2)); ++ SR(VID_FIR_COEF_H(0, 3)); ++ SR(VID_FIR_COEF_H(0, 4)); ++ SR(VID_FIR_COEF_H(0, 5)); ++ SR(VID_FIR_COEF_H(0, 6)); ++ SR(VID_FIR_COEF_H(0, 7)); ++ ++ SR(VID_FIR_COEF_HV(0, 0)); ++ SR(VID_FIR_COEF_HV(0, 1)); ++ SR(VID_FIR_COEF_HV(0, 2)); ++ SR(VID_FIR_COEF_HV(0, 3)); ++ SR(VID_FIR_COEF_HV(0, 4)); ++ SR(VID_FIR_COEF_HV(0, 5)); ++ SR(VID_FIR_COEF_HV(0, 6)); ++ SR(VID_FIR_COEF_HV(0, 7)); ++ ++ SR(VID_CONV_COEF(0, 0)); ++ SR(VID_CONV_COEF(0, 1)); ++ SR(VID_CONV_COEF(0, 2)); ++ SR(VID_CONV_COEF(0, 3)); ++ SR(VID_CONV_COEF(0, 4)); ++ ++ SR(VID_FIR_COEF_V(0, 0)); ++ SR(VID_FIR_COEF_V(0, 1)); ++ SR(VID_FIR_COEF_V(0, 2)); ++ SR(VID_FIR_COEF_V(0, 3)); ++ SR(VID_FIR_COEF_V(0, 4)); ++ SR(VID_FIR_COEF_V(0, 5)); ++ SR(VID_FIR_COEF_V(0, 6)); ++ SR(VID_FIR_COEF_V(0, 7)); ++ ++ SR(VID_PRELOAD(0)); ++ ++ /* VID2 */ ++ SR(VID_BA0(1)); ++ SR(VID_BA1(1)); ++ SR(VID_POSITION(1)); ++ SR(VID_SIZE(1)); ++ SR(VID_ATTRIBUTES(1)); ++ SR(VID_FIFO_THRESHOLD(1)); ++ SR(VID_ROW_INC(1)); ++ SR(VID_PIXEL_INC(1)); ++ SR(VID_FIR(1)); ++ SR(VID_PICTURE_SIZE(1)); ++ SR(VID_ACCU0(1)); ++ SR(VID_ACCU1(1)); ++ ++ SR(VID_FIR_COEF_H(1, 0)); ++ SR(VID_FIR_COEF_H(1, 1)); ++ SR(VID_FIR_COEF_H(1, 2)); ++ SR(VID_FIR_COEF_H(1, 3)); ++ SR(VID_FIR_COEF_H(1, 4)); ++ SR(VID_FIR_COEF_H(1, 5)); ++ SR(VID_FIR_COEF_H(1, 6)); ++ SR(VID_FIR_COEF_H(1, 7)); ++ ++ SR(VID_FIR_COEF_HV(1, 0)); ++ SR(VID_FIR_COEF_HV(1, 1)); ++ SR(VID_FIR_COEF_HV(1, 2)); ++ SR(VID_FIR_COEF_HV(1, 3)); ++ SR(VID_FIR_COEF_HV(1, 4)); ++ SR(VID_FIR_COEF_HV(1, 5)); ++ SR(VID_FIR_COEF_HV(1, 6)); ++ SR(VID_FIR_COEF_HV(1, 7)); ++ ++ SR(VID_CONV_COEF(1, 0)); ++ SR(VID_CONV_COEF(1, 1)); ++ SR(VID_CONV_COEF(1, 2)); ++ SR(VID_CONV_COEF(1, 3)); ++ SR(VID_CONV_COEF(1, 4)); ++ ++ SR(VID_FIR_COEF_V(1, 0)); ++ SR(VID_FIR_COEF_V(1, 1)); ++ SR(VID_FIR_COEF_V(1, 2)); ++ SR(VID_FIR_COEF_V(1, 3)); ++ SR(VID_FIR_COEF_V(1, 4)); ++ SR(VID_FIR_COEF_V(1, 5)); ++ SR(VID_FIR_COEF_V(1, 6)); ++ SR(VID_FIR_COEF_V(1, 7)); ++ ++ SR(VID_PRELOAD(1)); ++} ++ ++void dispc_restore_context(void) ++{ ++ RR(SYSCONFIG); ++ RR(IRQENABLE); ++ /*RR(CONTROL);*/ ++ RR(CONFIG); ++ RR(DEFAULT_COLOR0); ++ RR(DEFAULT_COLOR1); ++ RR(TRANS_COLOR0); ++ RR(TRANS_COLOR1); ++ RR(LINE_NUMBER); ++ RR(TIMING_H); ++ RR(TIMING_V); ++ RR(POL_FREQ); ++ RR(DIVISOR); ++ RR(GLOBAL_ALPHA); ++ RR(SIZE_DIG); ++ RR(SIZE_LCD); ++ ++ RR(GFX_BA0); ++ RR(GFX_BA1); ++ RR(GFX_POSITION); ++ RR(GFX_SIZE); ++ RR(GFX_ATTRIBUTES); ++ RR(GFX_FIFO_THRESHOLD); ++ RR(GFX_ROW_INC); ++ RR(GFX_PIXEL_INC); ++ RR(GFX_WINDOW_SKIP); ++ RR(GFX_TABLE_BA); ++ ++ RR(DATA_CYCLE1); ++ RR(DATA_CYCLE2); ++ RR(DATA_CYCLE3); ++ ++ RR(CPR_COEF_R); ++ RR(CPR_COEF_G); ++ RR(CPR_COEF_B); ++ ++ RR(GFX_PRELOAD); ++ ++ /* VID1 */ ++ RR(VID_BA0(0)); ++ RR(VID_BA1(0)); ++ RR(VID_POSITION(0)); ++ RR(VID_SIZE(0)); ++ RR(VID_ATTRIBUTES(0)); ++ RR(VID_FIFO_THRESHOLD(0)); ++ RR(VID_ROW_INC(0)); ++ RR(VID_PIXEL_INC(0)); ++ RR(VID_FIR(0)); ++ RR(VID_PICTURE_SIZE(0)); ++ RR(VID_ACCU0(0)); ++ RR(VID_ACCU1(0)); ++ ++ RR(VID_FIR_COEF_H(0, 0)); ++ RR(VID_FIR_COEF_H(0, 1)); ++ RR(VID_FIR_COEF_H(0, 2)); ++ RR(VID_FIR_COEF_H(0, 3)); ++ RR(VID_FIR_COEF_H(0, 4)); ++ RR(VID_FIR_COEF_H(0, 5)); ++ RR(VID_FIR_COEF_H(0, 6)); ++ RR(VID_FIR_COEF_H(0, 7)); ++ ++ RR(VID_FIR_COEF_HV(0, 0)); ++ RR(VID_FIR_COEF_HV(0, 1)); ++ RR(VID_FIR_COEF_HV(0, 2)); ++ RR(VID_FIR_COEF_HV(0, 3)); ++ RR(VID_FIR_COEF_HV(0, 4)); ++ RR(VID_FIR_COEF_HV(0, 5)); ++ RR(VID_FIR_COEF_HV(0, 6)); ++ RR(VID_FIR_COEF_HV(0, 7)); ++ ++ RR(VID_CONV_COEF(0, 0)); ++ RR(VID_CONV_COEF(0, 1)); ++ RR(VID_CONV_COEF(0, 2)); ++ RR(VID_CONV_COEF(0, 3)); ++ RR(VID_CONV_COEF(0, 4)); ++ ++ RR(VID_FIR_COEF_V(0, 0)); ++ RR(VID_FIR_COEF_V(0, 1)); ++ RR(VID_FIR_COEF_V(0, 2)); ++ RR(VID_FIR_COEF_V(0, 3)); ++ RR(VID_FIR_COEF_V(0, 4)); ++ RR(VID_FIR_COEF_V(0, 5)); ++ RR(VID_FIR_COEF_V(0, 6)); ++ RR(VID_FIR_COEF_V(0, 7)); ++ ++ RR(VID_PRELOAD(0)); ++ ++ /* VID2 */ ++ RR(VID_BA0(1)); ++ RR(VID_BA1(1)); ++ RR(VID_POSITION(1)); ++ RR(VID_SIZE(1)); ++ RR(VID_ATTRIBUTES(1)); ++ RR(VID_FIFO_THRESHOLD(1)); ++ RR(VID_ROW_INC(1)); ++ RR(VID_PIXEL_INC(1)); ++ RR(VID_FIR(1)); ++ RR(VID_PICTURE_SIZE(1)); ++ RR(VID_ACCU0(1)); ++ RR(VID_ACCU1(1)); ++ ++ RR(VID_FIR_COEF_H(1, 0)); ++ RR(VID_FIR_COEF_H(1, 1)); ++ RR(VID_FIR_COEF_H(1, 2)); ++ RR(VID_FIR_COEF_H(1, 3)); ++ RR(VID_FIR_COEF_H(1, 4)); ++ RR(VID_FIR_COEF_H(1, 5)); ++ RR(VID_FIR_COEF_H(1, 6)); ++ RR(VID_FIR_COEF_H(1, 7)); ++ ++ RR(VID_FIR_COEF_HV(1, 0)); ++ RR(VID_FIR_COEF_HV(1, 1)); ++ RR(VID_FIR_COEF_HV(1, 2)); ++ RR(VID_FIR_COEF_HV(1, 3)); ++ RR(VID_FIR_COEF_HV(1, 4)); ++ RR(VID_FIR_COEF_HV(1, 5)); ++ RR(VID_FIR_COEF_HV(1, 6)); ++ RR(VID_FIR_COEF_HV(1, 7)); ++ ++ RR(VID_CONV_COEF(1, 0)); ++ RR(VID_CONV_COEF(1, 1)); ++ RR(VID_CONV_COEF(1, 2)); ++ RR(VID_CONV_COEF(1, 3)); ++ RR(VID_CONV_COEF(1, 4)); ++ ++ RR(VID_FIR_COEF_V(1, 0)); ++ RR(VID_FIR_COEF_V(1, 1)); ++ RR(VID_FIR_COEF_V(1, 2)); ++ RR(VID_FIR_COEF_V(1, 3)); ++ RR(VID_FIR_COEF_V(1, 4)); ++ RR(VID_FIR_COEF_V(1, 5)); ++ RR(VID_FIR_COEF_V(1, 6)); ++ RR(VID_FIR_COEF_V(1, 7)); ++ ++ RR(VID_PRELOAD(1)); ++ ++ /* enable last, because LCD & DIGIT enable are here */ ++ RR(CONTROL); ++} ++ ++#undef SR ++#undef RR ++ ++static inline void enable_clocks(bool enable) ++{ ++ if (enable) ++ dss_clk_enable(DSS_CLK_ICK | DSS_CLK_FCK1); ++ else ++ dss_clk_disable(DSS_CLK_ICK | DSS_CLK_FCK1); ++} ++ ++void dispc_go(enum omap_channel channel) ++{ ++ int bit; ++ unsigned long tmo; ++ ++ enable_clocks(1); ++ ++ if (channel == OMAP_DSS_CHANNEL_LCD) ++ bit = 0; /* LCDENABLE */ ++ else ++ bit = 1; /* DIGITALENABLE */ ++ ++ /* if the channel is not enabled, we don't need GO */ ++ if (REG_GET(DISPC_CONTROL, bit, bit) == 0) ++ goto end; ++ ++ if (channel == OMAP_DSS_CHANNEL_LCD) ++ bit = 5; /* GOLCD */ ++ else ++ bit = 6; /* GODIGIT */ ++ ++ tmo = jiffies + msecs_to_jiffies(200); ++ while (REG_GET(DISPC_CONTROL, bit, bit) == 1) { ++ if (time_after(jiffies, tmo)) { ++ DSSERR("timeout waiting GO flag\n"); ++ goto end; ++ } ++ cpu_relax(); ++ } ++ ++ DSSDBG("GO %s\n", channel == OMAP_DSS_CHANNEL_LCD ? "LCD" : "DIGIT"); ++ ++ REG_FLD_MOD(DISPC_CONTROL, 1, bit, bit); ++end: ++ enable_clocks(0); ++} ++ ++static void _dispc_write_firh_reg(enum omap_plane plane, int reg, u32 value) ++{ ++ BUG_ON(plane == OMAP_DSS_GFX); ++ ++ dispc_write_reg(DISPC_VID_FIR_COEF_H(plane-1, reg), value); ++} ++ ++static void _dispc_write_firhv_reg(enum omap_plane plane, int reg, u32 value) ++{ ++ BUG_ON(plane == OMAP_DSS_GFX); ++ ++ dispc_write_reg(DISPC_VID_FIR_COEF_HV(plane-1, reg), value); ++} ++ ++static void _dispc_write_firv_reg(enum omap_plane plane, int reg, u32 value) ++{ ++ BUG_ON(plane == OMAP_DSS_GFX); ++ ++ dispc_write_reg(DISPC_VID_FIR_COEF_V(plane-1, reg), value); ++} ++ ++static void _dispc_set_scale_coef(enum omap_plane plane, int hscaleup, ++ int vscaleup, int five_taps) ++{ ++ /* Coefficients for horizontal up-sampling */ ++ static const u32 coef_hup[8] = { ++ 0x00800000, ++ 0x0D7CF800, ++ 0x1E70F5FF, ++ 0x335FF5FE, ++ 0xF74949F7, ++ 0xF55F33FB, ++ 0xF5701EFE, ++ 0xF87C0DFF, ++ }; ++ ++ /* Coefficients for horizontal down-sampling */ ++ static const u32 coef_hdown[8] = { ++ 0x24382400, ++ 0x28371FFE, ++ 0x2C361BFB, ++ 0x303516F9, ++ 0x11343311, ++ 0x1635300C, ++ 0x1B362C08, ++ 0x1F372804, ++ }; ++ ++ /* Coefficients for horizontal and vertical up-sampling */ ++ static const u32 coef_hvup[2][8] = { ++ { ++ 0x00800000, ++ 0x037B02FF, ++ 0x0C6F05FE, ++ 0x205907FB, ++ 0x00404000, ++ 0x075920FE, ++ 0x056F0CFF, ++ 0x027B0300, ++ }, ++ { ++ 0x00800000, ++ 0x0D7CF8FF, ++ 0x1E70F5FE, ++ 0x335FF5FB, ++ 0xF7404000, ++ 0xF55F33FE, ++ 0xF5701EFF, ++ 0xF87C0D00, ++ }, ++ }; ++ ++ /* Coefficients for horizontal and vertical down-sampling */ ++ static const u32 coef_hvdown[2][8] = { ++ { ++ 0x24382400, ++ 0x28391F04, ++ 0x2D381B08, ++ 0x3237170C, ++ 0x123737F7, ++ 0x173732F9, ++ 0x1B382DFB, ++ 0x1F3928FE, ++ }, ++ { ++ 0x24382400, ++ 0x28371F04, ++ 0x2C361B08, ++ 0x3035160C, ++ 0x113433F7, ++ 0x163530F9, ++ 0x1B362CFB, ++ 0x1F3728FE, ++ }, ++ }; ++ ++ /* Coefficients for vertical up-sampling */ ++ static const u32 coef_vup[8] = { ++ 0x00000000, ++ 0x0000FF00, ++ 0x0000FEFF, ++ 0x0000FBFE, ++ 0x000000F7, ++ 0x0000FEFB, ++ 0x0000FFFE, ++ 0x000000FF, ++ }; ++ ++ ++ /* Coefficients for vertical down-sampling */ ++ static const u32 coef_vdown[8] = { ++ 0x00000000, ++ 0x000004FE, ++ 0x000008FB, ++ 0x00000CF9, ++ 0x0000F711, ++ 0x0000F90C, ++ 0x0000FB08, ++ 0x0000FE04, ++ }; ++ ++ const u32 *h_coef; ++ const u32 *hv_coef; ++ const u32 *hv_coef_mod; ++ const u32 *v_coef; ++ int i; ++ ++ if (hscaleup) ++ h_coef = coef_hup; ++ else ++ h_coef = coef_hdown; ++ ++ if (vscaleup) { ++ hv_coef = coef_hvup[five_taps]; ++ v_coef = coef_vup; ++ ++ if (hscaleup) ++ hv_coef_mod = NULL; ++ else ++ hv_coef_mod = coef_hvdown[five_taps]; ++ } else { ++ hv_coef = coef_hvdown[five_taps]; ++ v_coef = coef_vdown; ++ ++ if (hscaleup) ++ hv_coef_mod = coef_hvup[five_taps]; ++ else ++ hv_coef_mod = NULL; ++ } ++ ++ for (i = 0; i < 8; i++) { ++ u32 h, hv; ++ ++ h = h_coef[i]; ++ ++ hv = hv_coef[i]; ++ ++ if (hv_coef_mod) { ++ hv &= 0xffffff00; ++ hv |= (hv_coef_mod[i] & 0xff); ++ } ++ ++ _dispc_write_firh_reg(plane, i, h); ++ _dispc_write_firhv_reg(plane, i, hv); ++ } ++ ++ if (!five_taps) ++ return; ++ ++ for (i = 0; i < 8; i++) { ++ u32 v; ++ v = v_coef[i]; ++ _dispc_write_firv_reg(plane, i, v); ++ } ++} ++ ++static void _dispc_setup_color_conv_coef(void) ++{ ++ const struct color_conv_coef { ++ int ry, rcr, rcb, gy, gcr, gcb, by, bcr, bcb; ++ int full_range; ++ } ctbl_bt601_5 = { ++ 298, 409, 0, 298, -208, -100, 298, 0, 517, 0, ++ }; ++ ++ const struct color_conv_coef *ct; ++ ++#define CVAL(x, y) (FLD_VAL(x, 26, 16) | FLD_VAL(y, 10, 0)) ++ ++ ct = &ctbl_bt601_5; ++ ++ dispc_write_reg(DISPC_VID_CONV_COEF(0, 0), CVAL(ct->rcr, ct->ry)); ++ dispc_write_reg(DISPC_VID_CONV_COEF(0, 1), CVAL(ct->gy, ct->rcb)); ++ dispc_write_reg(DISPC_VID_CONV_COEF(0, 2), CVAL(ct->gcb, ct->gcr)); ++ dispc_write_reg(DISPC_VID_CONV_COEF(0, 3), CVAL(ct->bcr, ct->by)); ++ dispc_write_reg(DISPC_VID_CONV_COEF(0, 4), CVAL(0, ct->bcb)); ++ ++ dispc_write_reg(DISPC_VID_CONV_COEF(1, 0), CVAL(ct->rcr, ct->ry)); ++ dispc_write_reg(DISPC_VID_CONV_COEF(1, 1), CVAL(ct->gy, ct->rcb)); ++ dispc_write_reg(DISPC_VID_CONV_COEF(1, 2), CVAL(ct->gcb, ct->gcr)); ++ dispc_write_reg(DISPC_VID_CONV_COEF(1, 3), CVAL(ct->bcr, ct->by)); ++ dispc_write_reg(DISPC_VID_CONV_COEF(1, 4), CVAL(0, ct->bcb)); ++ ++#undef CVAL ++ ++ REG_FLD_MOD(DISPC_VID_ATTRIBUTES(0), ct->full_range, 11, 11); ++ REG_FLD_MOD(DISPC_VID_ATTRIBUTES(1), ct->full_range, 11, 11); ++} ++ ++ ++static void _dispc_set_plane_ba0(enum omap_plane plane, u32 paddr) ++{ ++ const struct dispc_reg ba0_reg[] = { DISPC_GFX_BA0, ++ DISPC_VID_BA0(0), ++ DISPC_VID_BA0(1) }; ++ ++ dispc_write_reg(ba0_reg[plane], paddr); ++} ++ ++static void _dispc_set_plane_ba1(enum omap_plane plane, u32 paddr) ++{ ++ const struct dispc_reg ba1_reg[] = { DISPC_GFX_BA1, ++ DISPC_VID_BA1(0), ++ DISPC_VID_BA1(1) }; ++ ++ dispc_write_reg(ba1_reg[plane], paddr); ++} ++ ++static void _dispc_set_plane_pos(enum omap_plane plane, int x, int y) ++{ ++ const struct dispc_reg pos_reg[] = { DISPC_GFX_POSITION, ++ DISPC_VID_POSITION(0), ++ DISPC_VID_POSITION(1) }; ++ ++ u32 val = FLD_VAL(y, 26, 16) | FLD_VAL(x, 10, 0); ++ dispc_write_reg(pos_reg[plane], val); ++} ++ ++static void _dispc_set_pic_size(enum omap_plane plane, int width, int height) ++{ ++ const struct dispc_reg siz_reg[] = { DISPC_GFX_SIZE, ++ DISPC_VID_PICTURE_SIZE(0), ++ DISPC_VID_PICTURE_SIZE(1) }; ++ u32 val = FLD_VAL(height - 1, 26, 16) | FLD_VAL(width - 1, 10, 0); ++ dispc_write_reg(siz_reg[plane], val); ++} ++ ++static void _dispc_set_vid_size(enum omap_plane plane, int width, int height) ++{ ++ u32 val; ++ const struct dispc_reg vsi_reg[] = { DISPC_VID_SIZE(0), ++ DISPC_VID_SIZE(1) }; ++ ++ BUG_ON(plane == OMAP_DSS_GFX); ++ ++ val = FLD_VAL(height - 1, 26, 16) | FLD_VAL(width - 1, 10, 0); ++ dispc_write_reg(vsi_reg[plane-1], val); ++} ++ ++static void _dispc_set_pix_inc(enum omap_plane plane, u16 inc) ++{ ++ const struct dispc_reg ri_reg[] = { DISPC_GFX_PIXEL_INC, ++ DISPC_VID_PIXEL_INC(0), ++ DISPC_VID_PIXEL_INC(1) }; ++ ++ dispc_write_reg(ri_reg[plane], inc); ++} ++ ++static void _dispc_set_row_inc(enum omap_plane plane, u16 inc) ++{ ++ const struct dispc_reg ri_reg[] = { DISPC_GFX_ROW_INC, ++ DISPC_VID_ROW_INC(0), ++ DISPC_VID_ROW_INC(1) }; ++ ++ dispc_write_reg(ri_reg[plane], inc); ++} ++ ++static void _dispc_set_color_mode(enum omap_plane plane, ++ enum omap_color_mode color_mode) ++{ ++ u32 m = 0; ++ ++ switch (color_mode) { ++ case OMAP_DSS_COLOR_CLUT1: ++ m = 0x0; break; ++ case OMAP_DSS_COLOR_CLUT2: ++ m = 0x1; break; ++ case OMAP_DSS_COLOR_CLUT4: ++ m = 0x2; break; ++ case OMAP_DSS_COLOR_CLUT8: ++ m = 0x3; break; ++ case OMAP_DSS_COLOR_RGB12U: ++ m = 0x4; break; ++ case OMAP_DSS_COLOR_ARGB16: ++ m = 0x5; break; ++ case OMAP_DSS_COLOR_RGB16: ++ m = 0x6; break; ++ case OMAP_DSS_COLOR_RGB24U: ++ m = 0x8; break; ++ case OMAP_DSS_COLOR_RGB24P: ++ m = 0x9; break; ++ case OMAP_DSS_COLOR_YUV2: ++ m = 0xa; break; ++ case OMAP_DSS_COLOR_UYVY: ++ m = 0xb; break; ++ case OMAP_DSS_COLOR_ARGB32: ++ m = 0xc; break; ++ case OMAP_DSS_COLOR_RGBA32: ++ m = 0xd; break; ++ case OMAP_DSS_COLOR_RGBX32: ++ m = 0xe; break; ++ default: ++ BUG(); break; ++ } ++ ++ REG_FLD_MOD(dispc_reg_att[plane], m, 4, 1); ++} ++ ++static void _dispc_set_channel_out(enum omap_plane plane, ++ enum omap_channel channel) ++{ ++ int shift; ++ u32 val; ++ ++ switch (plane) { ++ case OMAP_DSS_GFX: ++ shift = 8; ++ break; ++ case OMAP_DSS_VIDEO1: ++ case OMAP_DSS_VIDEO2: ++ shift = 16; ++ break; ++ default: ++ BUG(); ++ return; ++ } ++ ++ val = dispc_read_reg(dispc_reg_att[plane]); ++ val = FLD_MOD(val, channel, shift, shift); ++ dispc_write_reg(dispc_reg_att[plane], val); ++} ++ ++void dispc_set_burst_size(enum omap_plane plane, ++ enum omap_burst_size burst_size) ++{ ++ int shift; ++ u32 val; ++ ++ enable_clocks(1); ++ ++ switch (plane) { ++ case OMAP_DSS_GFX: ++ shift = 6; ++ break; ++ case OMAP_DSS_VIDEO1: ++ case OMAP_DSS_VIDEO2: ++ shift = 14; ++ break; ++ default: ++ BUG(); ++ return; ++ } ++ ++ val = dispc_read_reg(dispc_reg_att[plane]); ++ val = FLD_MOD(val, burst_size, shift+1, shift); ++ dispc_write_reg(dispc_reg_att[plane], val); ++ ++ enable_clocks(0); ++} ++ ++static void _dispc_set_vid_color_conv(enum omap_plane plane, bool enable) ++{ ++ u32 val; ++ ++ BUG_ON(plane == OMAP_DSS_GFX); ++ ++ val = dispc_read_reg(dispc_reg_att[plane]); ++ val = FLD_MOD(val, enable, 9, 9); ++ dispc_write_reg(dispc_reg_att[plane], val); ++} ++ ++void dispc_set_lcd_size(u16 width, u16 height) ++{ ++ u32 val; ++ BUG_ON((width > (1 << 11)) || (height > (1 << 11))); ++ val = FLD_VAL(height - 1, 26, 16) | FLD_VAL(width - 1, 10, 0); ++ enable_clocks(1); ++ dispc_write_reg(DISPC_SIZE_LCD, val); ++ enable_clocks(0); ++} ++ ++void dispc_set_digit_size(u16 width, u16 height) ++{ ++ u32 val; ++ BUG_ON((width > (1 << 11)) || (height > (1 << 11))); ++ val = FLD_VAL(height - 1, 26, 16) | FLD_VAL(width - 1, 10, 0); ++ enable_clocks(1); ++ dispc_write_reg(DISPC_SIZE_DIG, val); ++ enable_clocks(0); ++} ++ ++u32 dispc_get_plane_fifo_size(enum omap_plane plane) ++{ ++ const struct dispc_reg fsz_reg[] = { DISPC_GFX_FIFO_SIZE_STATUS, ++ DISPC_VID_FIFO_SIZE_STATUS(0), ++ DISPC_VID_FIFO_SIZE_STATUS(1) }; ++ u32 size; ++ ++ enable_clocks(1); ++ ++ if (cpu_is_omap24xx()) ++ size = FLD_GET(dispc_read_reg(fsz_reg[plane]), 8, 0); ++ else if (cpu_is_omap34xx()) ++ size = FLD_GET(dispc_read_reg(fsz_reg[plane]), 10, 0); ++ else ++ BUG(); ++ ++ if (cpu_is_omap34xx()) { ++ /* FIFOMERGE */ ++ if (REG_GET(DISPC_CONFIG, 14, 14)) ++ size *= 3; ++ } ++ ++ enable_clocks(0); ++ ++ return size; ++} ++ ++void dispc_setup_plane_fifo(enum omap_plane plane, u32 low, u32 high) ++{ ++ const struct dispc_reg ftrs_reg[] = { DISPC_GFX_FIFO_THRESHOLD, ++ DISPC_VID_FIFO_THRESHOLD(0), ++ DISPC_VID_FIFO_THRESHOLD(1) }; ++ u32 size; ++ ++ enable_clocks(1); ++ ++ size = dispc_get_plane_fifo_size(plane); ++ ++ BUG_ON(low > size || high > size); ++ ++ DSSDBG("fifo(%d) size %d, low/high old %u/%u, new %u/%u\n", ++ plane, size, ++ REG_GET(ftrs_reg[plane], 11, 0), ++ REG_GET(ftrs_reg[plane], 27, 16), ++ low, high); ++ ++ if (cpu_is_omap24xx()) ++ dispc_write_reg(ftrs_reg[plane], ++ FLD_VAL(high, 24, 16) | FLD_VAL(low, 8, 0)); ++ else ++ dispc_write_reg(ftrs_reg[plane], ++ FLD_VAL(high, 27, 16) | FLD_VAL(low, 11, 0)); ++ ++ enable_clocks(0); ++} ++ ++void dispc_enable_fifomerge(bool enable) ++{ ++ enable_clocks(1); ++ ++ DSSDBG("FIFO merge %s\n", enable ? "enabled" : "disabled"); ++ REG_FLD_MOD(DISPC_CONFIG, enable ? 1 : 0, 14, 14); ++ ++ enable_clocks(0); ++} ++ ++static void _dispc_set_fir(enum omap_plane plane, int hinc, int vinc) ++{ ++ u32 val; ++ const struct dispc_reg fir_reg[] = { DISPC_VID_FIR(0), ++ DISPC_VID_FIR(1) }; ++ ++ BUG_ON(plane == OMAP_DSS_GFX); ++ ++ val = FLD_VAL(vinc, 27, 16) | FLD_VAL(hinc, 11, 0); ++ dispc_write_reg(fir_reg[plane-1], val); ++} ++ ++static void _dispc_set_vid_accu0(enum omap_plane plane, int haccu, int vaccu) ++{ ++ u32 val; ++ const struct dispc_reg ac0_reg[] = { DISPC_VID_ACCU0(0), ++ DISPC_VID_ACCU0(1) }; ++ ++ BUG_ON(plane == OMAP_DSS_GFX); ++ ++ val = FLD_VAL(vaccu, 25, 16) | FLD_VAL(haccu, 9, 0); ++ dispc_write_reg(ac0_reg[plane-1], val); ++} ++ ++static void _dispc_set_vid_accu1(enum omap_plane plane, int haccu, int vaccu) ++{ ++ u32 val; ++ const struct dispc_reg ac1_reg[] = { DISPC_VID_ACCU1(0), ++ DISPC_VID_ACCU1(1) }; ++ ++ BUG_ON(plane == OMAP_DSS_GFX); ++ ++ val = FLD_VAL(vaccu, 25, 16) | FLD_VAL(haccu, 9, 0); ++ dispc_write_reg(ac1_reg[plane-1], val); ++} ++ ++ ++static void _dispc_set_scaling(enum omap_plane plane, ++ u16 orig_width, u16 orig_height, ++ u16 out_width, u16 out_height, ++ bool ilace) ++{ ++ int fir_hinc; ++ int fir_vinc; ++ int hscaleup, vscaleup, five_taps; ++ int fieldmode = 0; ++ int accu0 = 0; ++ int accu1 = 0; ++ u32 l; ++ ++ BUG_ON(plane == OMAP_DSS_GFX); ++ ++ hscaleup = orig_width <= out_width; ++ vscaleup = orig_height <= out_height; ++ five_taps = orig_height > out_height * 2; ++ ++ _dispc_set_scale_coef(plane, hscaleup, vscaleup, five_taps); ++ ++ if (!orig_width || orig_width == out_width) ++ fir_hinc = 0; ++ else ++ fir_hinc = 1024 * orig_width / out_width; ++ ++ if (!orig_height || orig_height == out_height) ++ fir_vinc = 0; ++ else ++ fir_vinc = 1024 * orig_height / out_height; ++ ++ _dispc_set_fir(plane, fir_hinc, fir_vinc); ++ ++ l = dispc_read_reg(dispc_reg_att[plane]); ++ l &= ~((0x0f << 5) | (0x3 << 21)); ++ ++ l |= fir_hinc ? (1 << 5) : 0; ++ l |= fir_vinc ? (1 << 6) : 0; ++ ++ l |= hscaleup ? 0 : (1 << 7); ++ l |= vscaleup ? 0 : (1 << 8); ++ ++ l |= five_taps ? (1 << 21) : 0; ++ l |= five_taps ? (1 << 22) : 0; ++ ++ dispc_write_reg(dispc_reg_att[plane], l); ++ ++ if (ilace) { ++ if (fieldmode) { ++ accu0 = fir_vinc / 2; ++ accu1 = 0; ++ } else { ++ accu0 = 0; ++ accu1 = fir_vinc / 2; ++ if (accu1 >= 1024/2) { ++ accu0 = 1024/2; ++ accu1 -= accu0; ++ } ++ } ++ } ++ ++ _dispc_set_vid_accu0(plane, 0, accu0); ++ _dispc_set_vid_accu1(plane, 0, accu1); ++} ++ ++static void _dispc_set_rotation_attrs(enum omap_plane plane, u8 rotation, ++ bool mirroring, enum omap_color_mode color_mode) ++{ ++ if (color_mode == OMAP_DSS_COLOR_YUV2 || ++ color_mode == OMAP_DSS_COLOR_UYVY) { ++ int vidrot = 0; ++ ++ if (mirroring) { ++ switch (rotation) { ++ case 0: vidrot = 2; break; ++ case 1: vidrot = 3; break; ++ case 2: vidrot = 0; break; ++ case 3: vidrot = 1; break; ++ } ++ } else { ++ switch (rotation) { ++ case 0: vidrot = 0; break; ++ case 1: vidrot = 1; break; ++ case 2: vidrot = 2; break; ++ case 3: vidrot = 1; break; ++ } ++ } ++ ++ REG_FLD_MOD(dispc_reg_att[plane], vidrot, 13, 12); ++ ++ if (rotation == 1 || rotation == 3) ++ REG_FLD_MOD(dispc_reg_att[plane], 0x1, 18, 18); ++ else ++ REG_FLD_MOD(dispc_reg_att[plane], 0x0, 18, 18); ++ } else { ++ REG_FLD_MOD(dispc_reg_att[plane], 0, 13, 12); ++ REG_FLD_MOD(dispc_reg_att[plane], 0, 18, 18); ++ } ++} ++ ++static int pixinc(int pixels, u8 ps) ++{ ++ if (pixels == 1) ++ return 1; ++ else if (pixels > 1) ++ return 1 + (pixels - 1) * ps; ++ else if (pixels < 0) ++ return 1 - (-pixels + 1) * ps; ++ else ++ BUG(); ++} ++ ++static void calc_rotation_offset(u8 rotation, bool mirror, ++ u16 screen_width, ++ u16 width, u16 height, ++ enum omap_color_mode color_mode, bool fieldmode, ++ unsigned *offset0, unsigned *offset1, ++ u16 *row_inc, u16 *pix_inc) ++{ ++ u8 ps; ++ u16 fbw, fbh; ++ ++ switch (color_mode) { ++ case OMAP_DSS_COLOR_RGB16: ++ case OMAP_DSS_COLOR_ARGB16: ++ ps = 2; ++ break; ++ ++ case OMAP_DSS_COLOR_RGB24P: ++ ps = 3; ++ break; ++ ++ case OMAP_DSS_COLOR_RGB24U: ++ case OMAP_DSS_COLOR_ARGB32: ++ case OMAP_DSS_COLOR_RGBA32: ++ case OMAP_DSS_COLOR_RGBX32: ++ ps = 4; ++ break; ++ ++ case OMAP_DSS_COLOR_YUV2: ++ case OMAP_DSS_COLOR_UYVY: ++ ps = 2; ++ break; ++ default: ++ BUG(); ++ return; ++ } ++ ++ DSSDBG("calc_rot(%d): scrw %d, %dx%d\n", rotation, screen_width, ++ width, height); ++ ++ /* width & height are overlay sizes, convert to fb sizes */ ++ ++ if (rotation == 0 || rotation == 2) { ++ fbw = width; ++ fbh = height; ++ } else { ++ fbw = height; ++ fbh = width; ++ } ++ ++ switch (rotation + mirror * 4) { ++ case 0: ++ *offset0 = 0; ++ if (fieldmode) ++ *offset1 = screen_width * ps; ++ else ++ *offset1 = 0; ++ *row_inc = pixinc(1 + (screen_width - fbw) + ++ (fieldmode ? screen_width : 0), ++ ps); ++ *pix_inc = pixinc(1, ps); ++ break; ++ case 1: ++ *offset0 = screen_width * (fbh - 1) * ps; ++ if (fieldmode) ++ *offset1 = *offset0 + ps; ++ else ++ *offset1 = *offset0; ++ *row_inc = pixinc(screen_width * (fbh - 1) + 1 + ++ (fieldmode ? 1 : 0), ps); ++ *pix_inc = pixinc(-screen_width, ps); ++ break; ++ case 2: ++ *offset0 = (screen_width * (fbh - 1) + fbw - 1) * ps; ++ if (fieldmode) ++ *offset1 = *offset0 - screen_width * ps; ++ else ++ *offset1 = *offset0; ++ *row_inc = pixinc(-1 - ++ (screen_width - fbw) - ++ (fieldmode ? screen_width : 0), ++ ps); ++ *pix_inc = pixinc(-1, ps); ++ break; ++ case 3: ++ *offset0 = (fbw - 1) * ps; ++ if (fieldmode) ++ *offset1 = *offset0 - ps; ++ else ++ *offset1 = *offset0; ++ *row_inc = pixinc(-screen_width * (fbh - 1) - 1 - ++ (fieldmode ? 1 : 0), ps); ++ *pix_inc = pixinc(screen_width, ps); ++ break; ++ ++ /* mirroring */ ++ case 0 + 4: ++ *offset0 = (fbw - 1) * ps; ++ if (fieldmode) ++ *offset1 = *offset0 + screen_width * ps; ++ else ++ *offset1 = *offset0; ++ *row_inc = pixinc(screen_width * 2 - 1 + ++ (fieldmode ? screen_width : 0), ++ ps); ++ *pix_inc = pixinc(-1, ps); ++ break; ++ ++ case 1 + 4: ++ *offset0 = 0; ++ if (fieldmode) ++ *offset1 = *offset0 + screen_width * ps; ++ else ++ *offset1 = *offset0; ++ *row_inc = pixinc(-screen_width * (fbh - 1) + 1 + ++ (fieldmode ? 1 : 0), ++ ps); ++ *pix_inc = pixinc(screen_width, ps); ++ break; ++ ++ case 2 + 4: ++ *offset0 = screen_width * (fbh - 1) * ps; ++ if (fieldmode) ++ *offset1 = *offset0 + screen_width * ps; ++ else ++ *offset1 = *offset0; ++ *row_inc = pixinc(1 - screen_width * 2 - ++ (fieldmode ? screen_width : 0), ++ ps); ++ *pix_inc = pixinc(1, ps); ++ break; ++ ++ case 3 + 4: ++ *offset0 = (screen_width * (fbh - 1) + fbw - 1) * ps; ++ if (fieldmode) ++ *offset1 = *offset0 + screen_width * ps; ++ else ++ *offset1 = *offset0; ++ *row_inc = pixinc(screen_width * (fbh - 1) - 1 - ++ (fieldmode ? 1 : 0), ++ ps); ++ *pix_inc = pixinc(-screen_width, ps); ++ break; ++ ++ default: ++ BUG(); ++ } ++} ++ ++static int _dispc_setup_plane(enum omap_plane plane, ++ enum omap_channel channel_out, ++ u32 paddr, u16 screen_width, ++ u16 pos_x, u16 pos_y, ++ u16 width, u16 height, ++ u16 out_width, u16 out_height, ++ enum omap_color_mode color_mode, ++ bool ilace, ++ u8 rotation, int mirror) ++{ ++ const int maxdownscale = cpu_is_omap34xx() ? 4 : 2; ++ bool five_taps = height > out_height * 2; ++ bool fieldmode = 0; ++ int cconv = 0; ++ unsigned offset0, offset1; ++ u16 row_inc; ++ u16 pix_inc; ++ ++ if (plane == OMAP_DSS_GFX) { ++ if (width != out_width || height != out_height) ++ return -EINVAL; ++ ++ switch (color_mode) { ++ case OMAP_DSS_COLOR_ARGB16: ++ case OMAP_DSS_COLOR_RGB16: ++ case OMAP_DSS_COLOR_RGB24P: ++ case OMAP_DSS_COLOR_RGB24U: ++ case OMAP_DSS_COLOR_ARGB32: ++ case OMAP_DSS_COLOR_RGBA32: ++ case OMAP_DSS_COLOR_RGBX32: ++ break; ++ ++ default: ++ return -EINVAL; ++ } ++ } else { ++ /* video plane */ ++ if (width > (2048 >> five_taps)) ++ return -EINVAL; ++ ++ if (out_width < width / maxdownscale || ++ out_width > width * 8) ++ return -EINVAL; ++ ++ if (out_height < height / maxdownscale || ++ out_height > height * 8) ++ return -EINVAL; ++ ++ switch (color_mode) { ++ case OMAP_DSS_COLOR_RGB16: ++ case OMAP_DSS_COLOR_RGB24P: ++ case OMAP_DSS_COLOR_RGB24U: ++ case OMAP_DSS_COLOR_RGBX32: ++ break; ++ ++ case OMAP_DSS_COLOR_ARGB16: ++ case OMAP_DSS_COLOR_ARGB32: ++ case OMAP_DSS_COLOR_RGBA32: ++ if (plane == OMAP_DSS_VIDEO1) ++ return -EINVAL; ++ break; ++ ++ case OMAP_DSS_COLOR_YUV2: ++ case OMAP_DSS_COLOR_UYVY: ++ cconv = 1; ++ break; ++ ++ default: ++ return -EINVAL; ++ } ++ } ++ ++ if (ilace && height >= out_height) ++ fieldmode = 1; ++ ++ calc_rotation_offset(rotation, mirror, ++ screen_width, width, height, color_mode, ++ fieldmode, ++ &offset0, &offset1, &row_inc, &pix_inc); ++ ++ DSSDBG("offset0 %u, offset1 %u, row_inc %d, pix_inc %d\n", ++ offset0, offset1, row_inc, pix_inc); ++ ++ if (ilace) { ++ if (fieldmode) ++ height /= 2; ++ pos_y /= 2; ++ out_height /= 2; ++ ++ DSSDBG("adjusting for ilace: height %d, pos_y %d, " ++ "out_height %d\n", ++ height, pos_y, out_height); ++ } ++ ++ _dispc_set_channel_out(plane, channel_out); ++ _dispc_set_color_mode(plane, color_mode); ++ ++ _dispc_set_plane_ba0(plane, paddr + offset0); ++ _dispc_set_plane_ba1(plane, paddr + offset1); ++ ++ _dispc_set_row_inc(plane, row_inc); ++ _dispc_set_pix_inc(plane, pix_inc); ++ ++ DSSDBG("%d,%d %dx%d -> %dx%d\n", pos_x, pos_y, width, height, ++ out_width, out_height); ++ ++ _dispc_set_plane_pos(plane, pos_x, pos_y); ++ ++ _dispc_set_pic_size(plane, width, height); ++ ++ if (plane != OMAP_DSS_GFX) { ++ _dispc_set_scaling(plane, width, height, ++ out_width, out_height, ++ ilace); ++ _dispc_set_vid_size(plane, out_width, out_height); ++ _dispc_set_vid_color_conv(plane, cconv); ++ } ++ ++ _dispc_set_rotation_attrs(plane, rotation, mirror, color_mode); ++ ++ return 0; ++} ++ ++static void _dispc_enable_plane(enum omap_plane plane, bool enable) ++{ ++ REG_FLD_MOD(dispc_reg_att[plane], enable ? 1 : 0, 0, 0); ++} ++ ++static void dispc_disable_isr(void *data, u32 mask) ++{ ++ struct completion *compl = data; ++ complete(compl); ++} ++ ++static void _enable_lcd_out(bool enable) ++{ ++ REG_FLD_MOD(DISPC_CONTROL, enable ? 1 : 0, 0, 0); ++} ++ ++void dispc_enable_lcd_out(bool enable) ++{ ++ struct completion frame_done_completion; ++ bool is_on; ++ int r; ++ ++ enable_clocks(1); ++ ++ /* When we disable LCD output, we need to wait until frame is done. ++ * Otherwise the DSS is still working, and turning off the clocks ++ * prevents DSS from going to OFF mode */ ++ is_on = REG_GET(DISPC_CONTROL, 0, 0); ++ ++ if (!enable && is_on) { ++ init_completion(&frame_done_completion); ++ ++ r = omap_dispc_register_isr(dispc_disable_isr, ++ &frame_done_completion, ++ DISPC_IRQ_FRAMEDONE); ++ ++ if (r) ++ DSSERR("failed to register FRAMEDONE isr\n"); ++ } ++ ++ _enable_lcd_out(enable); ++ ++ if (!enable && is_on) { ++ if (!wait_for_completion_timeout(&frame_done_completion, ++ msecs_to_jiffies(100))) ++ DSSERR("timeout waiting for FRAME DONE\n"); ++ ++ r = omap_dispc_unregister_isr(dispc_disable_isr, ++ &frame_done_completion, ++ DISPC_IRQ_FRAMEDONE); ++ ++ if (r) ++ DSSERR("failed to unregister FRAMEDONE isr\n"); ++ } ++ ++ enable_clocks(0); ++} ++ ++static void _enable_digit_out(bool enable) ++{ ++ REG_FLD_MOD(DISPC_CONTROL, enable ? 1 : 0, 1, 1); ++} ++ ++void dispc_enable_digit_out(bool enable) ++{ ++ struct completion frame_done_completion; ++ int r; ++ ++ enable_clocks(1); ++ ++ if (REG_GET(DISPC_CONTROL, 1, 1) == enable) { ++ enable_clocks(0); ++ return; ++ } ++ ++ if (enable) { ++ /* When we enable digit output, we'll get an extra digit ++ * sync lost interrupt, that we need to ignore */ ++ dispc.irq_error_mask &= ~DISPC_IRQ_SYNC_LOST_DIGIT; ++ omap_dispc_set_irqs(); ++ } ++ ++ /* When we disable digit output, we need to wait until fields are done. ++ * Otherwise the DSS is still working, and turning off the clocks ++ * prevents DSS from going to OFF mode. And when enabling, we need to ++ * wait for the extra sync losts */ ++ init_completion(&frame_done_completion); ++ ++ r = omap_dispc_register_isr(dispc_disable_isr, &frame_done_completion, ++ DISPC_IRQ_EVSYNC_EVEN | DISPC_IRQ_EVSYNC_ODD); ++ if (r) ++ DSSERR("failed to register EVSYNC isr\n"); ++ ++ _enable_digit_out(enable); ++ ++ /* XXX I understand from TRM that we should only wait for the ++ * current field to complete. But it seems we have to wait ++ * for both fields */ ++ if (!wait_for_completion_timeout(&frame_done_completion, ++ msecs_to_jiffies(100))) ++ DSSERR("timeout waiting for EVSYNC\n"); ++ ++ if (!wait_for_completion_timeout(&frame_done_completion, ++ msecs_to_jiffies(100))) ++ DSSERR("timeout waiting for EVSYNC\n"); ++ ++ r = omap_dispc_unregister_isr(dispc_disable_isr, ++ &frame_done_completion, ++ DISPC_IRQ_EVSYNC_EVEN | DISPC_IRQ_EVSYNC_ODD); ++ if (r) ++ DSSERR("failed to unregister EVSYNC isr\n"); ++ ++ if (enable) { ++ dispc.irq_error_mask = DISPC_IRQ_MASK_ERROR; ++ dispc_write_reg(DISPC_IRQSTATUS, DISPC_IRQ_SYNC_LOST_DIGIT); ++ omap_dispc_set_irqs(); ++ } ++ ++ enable_clocks(0); ++} ++ ++void dispc_lcd_enable_signal_polarity(bool act_high) ++{ ++ enable_clocks(1); ++ REG_FLD_MOD(DISPC_CONTROL, act_high ? 1 : 0, 29, 29); ++ enable_clocks(0); ++} ++ ++void dispc_lcd_enable_signal(bool enable) ++{ ++ enable_clocks(1); ++ REG_FLD_MOD(DISPC_CONTROL, enable ? 1 : 0, 28, 28); ++ enable_clocks(0); ++} ++ ++void dispc_pck_free_enable(bool enable) ++{ ++ enable_clocks(1); ++ REG_FLD_MOD(DISPC_CONTROL, enable ? 1 : 0, 27, 27); ++ enable_clocks(0); ++} ++ ++void dispc_enable_fifohandcheck(bool enable) ++{ ++ enable_clocks(1); ++ REG_FLD_MOD(DISPC_CONFIG, enable ? 1 : 0, 16, 16); ++ enable_clocks(0); ++} ++ ++ ++void dispc_set_lcd_display_type(enum omap_lcd_display_type type) ++{ ++ int mode; ++ ++ switch (type) { ++ case OMAP_DSS_LCD_DISPLAY_STN: ++ mode = 0; ++ break; ++ ++ case OMAP_DSS_LCD_DISPLAY_TFT: ++ mode = 1; ++ break; ++ ++ default: ++ BUG(); ++ return; ++ } ++ ++ enable_clocks(1); ++ REG_FLD_MOD(DISPC_CONTROL, mode, 3, 3); ++ enable_clocks(0); ++} ++ ++void dispc_set_loadmode(enum omap_dss_load_mode mode) ++{ ++ enable_clocks(1); ++ REG_FLD_MOD(DISPC_CONFIG, mode, 2, 1); ++ enable_clocks(0); ++} ++ ++ ++void dispc_set_default_color(enum omap_channel channel, u32 color) ++{ ++ const struct dispc_reg def_reg[] = { DISPC_DEFAULT_COLOR0, ++ DISPC_DEFAULT_COLOR1 }; ++ ++ enable_clocks(1); ++ dispc_write_reg(def_reg[channel], color); ++ enable_clocks(0); ++} ++ ++u32 dispc_get_default_color(enum omap_channel channel) ++{ ++ const struct dispc_reg def_reg[] = { DISPC_DEFAULT_COLOR0, ++ DISPC_DEFAULT_COLOR1 }; ++ u32 l; ++ ++ BUG_ON(channel != OMAP_DSS_CHANNEL_DIGIT && ++ channel != OMAP_DSS_CHANNEL_LCD); ++ ++ enable_clocks(1); ++ l = dispc_read_reg(def_reg[channel]); ++ enable_clocks(0); ++ ++ return l; ++} ++ ++void dispc_set_trans_key(enum omap_channel ch, ++ enum omap_dss_color_key_type type, ++ u32 trans_key) ++{ ++ const struct dispc_reg tr_reg[] = { ++ DISPC_TRANS_COLOR0, DISPC_TRANS_COLOR1 }; ++ ++ enable_clocks(1); ++ if (ch == OMAP_DSS_CHANNEL_LCD) ++ REG_FLD_MOD(DISPC_CONFIG, type, 11, 11); ++ else /* OMAP_DSS_CHANNEL_DIGIT */ ++ REG_FLD_MOD(DISPC_CONFIG, type, 13, 13); ++ ++ dispc_write_reg(tr_reg[ch], trans_key); ++ enable_clocks(0); ++} ++ ++void dispc_get_trans_key(enum omap_channel ch, ++ enum omap_dss_color_key_type *type, ++ u32 *trans_key) ++{ ++ const struct dispc_reg tr_reg[] = { ++ DISPC_TRANS_COLOR0, DISPC_TRANS_COLOR1 }; ++ ++ enable_clocks(1); ++ if (type) { ++ if (ch == OMAP_DSS_CHANNEL_LCD) ++ *type = REG_GET(DISPC_CONFIG, 11, 11) >> 11; ++ else if (ch == OMAP_DSS_CHANNEL_DIGIT) ++ *type = REG_GET(DISPC_CONFIG, 13, 13) >> 13; ++ else ++ BUG(); ++ } ++ ++ if (trans_key) ++ *trans_key = dispc_read_reg(tr_reg[ch]); ++ enable_clocks(0); ++} ++ ++void dispc_enable_trans_key(enum omap_channel ch, bool enable) ++{ ++ enable_clocks(1); ++ if (ch == OMAP_DSS_CHANNEL_LCD) ++ REG_FLD_MOD(DISPC_CONFIG, enable, 10, 10); ++ else /* OMAP_DSS_CHANNEL_DIGIT */ ++ REG_FLD_MOD(DISPC_CONFIG, enable, 12, 12); ++ enable_clocks(0); ++} ++ ++bool dispc_trans_key_enabled(enum omap_channel ch) ++{ ++ bool enabled; ++ ++ enable_clocks(1); ++ if (ch == OMAP_DSS_CHANNEL_LCD) ++ enabled = REG_GET(DISPC_CONFIG, 10, 10); ++ else if (ch == OMAP_DSS_CHANNEL_DIGIT) ++ enabled = REG_GET(DISPC_CONFIG, 12, 12); ++ else BUG(); ++ enable_clocks(0); ++ ++ return enabled; ++} ++ ++ ++void dispc_set_tft_data_lines(u8 data_lines) ++{ ++ int code; ++ ++ switch (data_lines) { ++ case 12: ++ code = 0; ++ break; ++ case 16: ++ code = 1; ++ break; ++ case 18: ++ code = 2; ++ break; ++ case 24: ++ code = 3; ++ break; ++ default: ++ BUG(); ++ return; ++ } ++ ++ enable_clocks(1); ++ REG_FLD_MOD(DISPC_CONTROL, code, 9, 8); ++ enable_clocks(0); ++} ++ ++void dispc_set_parallel_interface_mode(enum omap_parallel_interface_mode mode) ++{ ++ u32 l; ++ int stallmode; ++ int gpout0 = 1; ++ int gpout1; ++ ++ switch (mode) { ++ case OMAP_DSS_PARALLELMODE_BYPASS: ++ stallmode = 0; ++ gpout1 = 1; ++ break; ++ ++ case OMAP_DSS_PARALLELMODE_RFBI: ++ stallmode = 1; ++ gpout1 = 0; ++ break; ++ ++ case OMAP_DSS_PARALLELMODE_DSI: ++ stallmode = 1; ++ gpout1 = 1; ++ break; ++ ++ default: ++ BUG(); ++ return; ++ } ++ ++ enable_clocks(1); ++ ++ l = dispc_read_reg(DISPC_CONTROL); ++ ++ l = FLD_MOD(l, stallmode, 11, 11); ++ l = FLD_MOD(l, gpout0, 15, 15); ++ l = FLD_MOD(l, gpout1, 16, 16); ++ ++ dispc_write_reg(DISPC_CONTROL, l); ++ ++ enable_clocks(0); ++} ++ ++static void _dispc_set_lcd_timings(int hsw, int hfp, int hbp, ++ int vsw, int vfp, int vbp) ++{ ++ u32 timing_h, timing_v; ++ ++ if (cpu_is_omap24xx() || omap_rev() < OMAP3430_REV_ES3_0) { ++ BUG_ON(hsw < 1 || hsw > 64); ++ BUG_ON(hfp < 1 || hfp > 256); ++ BUG_ON(hbp < 1 || hbp > 256); ++ ++ BUG_ON(vsw < 1 || vsw > 64); ++ BUG_ON(vfp < 0 || vfp > 255); ++ BUG_ON(vbp < 0 || vbp > 255); ++ ++ timing_h = FLD_VAL(hsw-1, 5, 0) | FLD_VAL(hfp-1, 15, 8) | ++ FLD_VAL(hbp-1, 27, 20); ++ ++ timing_v = FLD_VAL(vsw-1, 5, 0) | FLD_VAL(vfp, 15, 8) | ++ FLD_VAL(vbp, 27, 20); ++ } else { ++ BUG_ON(hsw < 1 || hsw > 256); ++ BUG_ON(hfp < 1 || hfp > 4096); ++ BUG_ON(hbp < 1 || hbp > 4096); ++ ++ BUG_ON(vsw < 1 || vsw > 256); ++ BUG_ON(vfp < 0 || vfp > 4095); ++ BUG_ON(vbp < 0 || vbp > 4095); ++ ++ timing_h = FLD_VAL(hsw-1, 7, 0) | FLD_VAL(hfp-1, 19, 8) | ++ FLD_VAL(hbp-1, 31, 20); ++ ++ timing_v = FLD_VAL(vsw-1, 7, 0) | FLD_VAL(vfp, 19, 8) | ++ FLD_VAL(vbp, 31, 20); ++ } ++ ++ enable_clocks(1); ++ dispc_write_reg(DISPC_TIMING_H, timing_h); ++ dispc_write_reg(DISPC_TIMING_V, timing_v); ++ enable_clocks(0); ++} ++ ++/* change name to mode? */ ++void dispc_set_lcd_timings(struct omap_video_timings *timings) ++{ ++ unsigned xtot, ytot; ++ unsigned long ht, vt; ++ ++ _dispc_set_lcd_timings(timings->hsw, timings->hfp, timings->hbp, ++ timings->vsw, timings->vfp, timings->vbp); ++ ++ dispc_set_lcd_size(timings->x_res, timings->y_res); ++ ++ xtot = timings->x_res + timings->hfp + timings->hsw + timings->hbp; ++ ytot = timings->y_res + timings->vfp + timings->vsw + timings->vbp; ++ ++ ht = (timings->pixel_clock * 1000) / xtot; ++ vt = (timings->pixel_clock * 1000) / xtot / ytot; ++ ++ DSSDBG("xres %u yres %u\n", timings->x_res, timings->y_res); ++ DSSDBG("pck %u\n", timings->pixel_clock); ++ DSSDBG("hsw %d hfp %d hbp %d vsw %d vfp %d vbp %d\n", ++ timings->hsw, timings->hfp, timings->hbp, ++ timings->vsw, timings->vfp, timings->vbp); ++ ++ DSSDBG("hsync %luHz, vsync %luHz\n", ht, vt); ++} ++ ++void dispc_set_lcd_divisor(u16 lck_div, u16 pck_div) ++{ ++ BUG_ON(lck_div < 1); ++ BUG_ON(pck_div < 2); ++ ++ enable_clocks(1); ++ dispc_write_reg(DISPC_DIVISOR, ++ FLD_VAL(lck_div, 23, 16) | FLD_VAL(pck_div, 7, 0)); ++ enable_clocks(0); ++} ++ ++static void dispc_get_lcd_divisor(int *lck_div, int *pck_div) ++{ ++ u32 l; ++ l = dispc_read_reg(DISPC_DIVISOR); ++ *lck_div = FLD_GET(l, 23, 16); ++ *pck_div = FLD_GET(l, 7, 0); ++} ++ ++unsigned long dispc_fclk_rate(void) ++{ ++ unsigned long r = 0; ++ ++ if (dss_get_dispc_clk_source() == 0) ++ r = dss_clk_get_rate(DSS_CLK_FCK1); ++ else ++#ifdef CONFIG_OMAP2_DSS_DSI ++ r = dsi_get_dsi1_pll_rate(); ++#else ++ BUG(); ++#endif ++ return r; ++} ++ ++unsigned long dispc_pclk_rate(void) ++{ ++ int lcd, pcd; ++ unsigned long r; ++ u32 l; ++ ++ l = dispc_read_reg(DISPC_DIVISOR); ++ ++ lcd = FLD_GET(l, 23, 16); ++ pcd = FLD_GET(l, 7, 0); ++ ++ r = dispc_fclk_rate(); ++ ++ return r / lcd / pcd; ++} ++ ++void dispc_dump_clocks(struct seq_file *s) ++{ ++ int lcd, pcd; ++ ++ enable_clocks(1); ++ ++ dispc_get_lcd_divisor(&lcd, &pcd); ++ ++ seq_printf(s, "- dispc -\n"); ++ ++ seq_printf(s, "dispc fclk source = %s\n", ++ dss_get_dispc_clk_source() == 0 ? ++ "dss1_alwon_fclk" : "dsi1_pll_fclk"); ++ ++ seq_printf(s, "pixel clk = %lu / %d / %d = %lu\n", ++ dispc_fclk_rate(), ++ lcd, pcd, ++ dispc_pclk_rate()); ++ ++ enable_clocks(0); ++} ++ ++void dispc_dump_regs(struct seq_file *s) ++{ ++#define DUMPREG(r) seq_printf(s, "%-35s %08x\n", #r, dispc_read_reg(r)) ++ ++ dss_clk_enable(DSS_CLK_ICK | DSS_CLK_FCK1); ++ ++ DUMPREG(DISPC_REVISION); ++ DUMPREG(DISPC_SYSCONFIG); ++ DUMPREG(DISPC_SYSSTATUS); ++ DUMPREG(DISPC_IRQSTATUS); ++ DUMPREG(DISPC_IRQENABLE); ++ DUMPREG(DISPC_CONTROL); ++ DUMPREG(DISPC_CONFIG); ++ DUMPREG(DISPC_CAPABLE); ++ DUMPREG(DISPC_DEFAULT_COLOR0); ++ DUMPREG(DISPC_DEFAULT_COLOR1); ++ DUMPREG(DISPC_TRANS_COLOR0); ++ DUMPREG(DISPC_TRANS_COLOR1); ++ DUMPREG(DISPC_LINE_STATUS); ++ DUMPREG(DISPC_LINE_NUMBER); ++ DUMPREG(DISPC_TIMING_H); ++ DUMPREG(DISPC_TIMING_V); ++ DUMPREG(DISPC_POL_FREQ); ++ DUMPREG(DISPC_DIVISOR); ++ DUMPREG(DISPC_GLOBAL_ALPHA); ++ DUMPREG(DISPC_SIZE_DIG); ++ DUMPREG(DISPC_SIZE_LCD); ++ ++ DUMPREG(DISPC_GFX_BA0); ++ DUMPREG(DISPC_GFX_BA1); ++ DUMPREG(DISPC_GFX_POSITION); ++ DUMPREG(DISPC_GFX_SIZE); ++ DUMPREG(DISPC_GFX_ATTRIBUTES); ++ DUMPREG(DISPC_GFX_FIFO_THRESHOLD); ++ DUMPREG(DISPC_GFX_FIFO_SIZE_STATUS); ++ DUMPREG(DISPC_GFX_ROW_INC); ++ DUMPREG(DISPC_GFX_PIXEL_INC); ++ DUMPREG(DISPC_GFX_WINDOW_SKIP); ++ DUMPREG(DISPC_GFX_TABLE_BA); ++ ++ DUMPREG(DISPC_DATA_CYCLE1); ++ DUMPREG(DISPC_DATA_CYCLE2); ++ DUMPREG(DISPC_DATA_CYCLE3); ++ ++ DUMPREG(DISPC_CPR_COEF_R); ++ DUMPREG(DISPC_CPR_COEF_G); ++ DUMPREG(DISPC_CPR_COEF_B); ++ ++ DUMPREG(DISPC_GFX_PRELOAD); ++ ++ DUMPREG(DISPC_VID_BA0(0)); ++ DUMPREG(DISPC_VID_BA1(0)); ++ DUMPREG(DISPC_VID_POSITION(0)); ++ DUMPREG(DISPC_VID_SIZE(0)); ++ DUMPREG(DISPC_VID_ATTRIBUTES(0)); ++ DUMPREG(DISPC_VID_FIFO_THRESHOLD(0)); ++ DUMPREG(DISPC_VID_FIFO_SIZE_STATUS(0)); ++ DUMPREG(DISPC_VID_ROW_INC(0)); ++ DUMPREG(DISPC_VID_PIXEL_INC(0)); ++ DUMPREG(DISPC_VID_FIR(0)); ++ DUMPREG(DISPC_VID_PICTURE_SIZE(0)); ++ DUMPREG(DISPC_VID_ACCU0(0)); ++ DUMPREG(DISPC_VID_ACCU1(0)); ++ ++ DUMPREG(DISPC_VID_BA0(1)); ++ DUMPREG(DISPC_VID_BA1(1)); ++ DUMPREG(DISPC_VID_POSITION(1)); ++ DUMPREG(DISPC_VID_SIZE(1)); ++ DUMPREG(DISPC_VID_ATTRIBUTES(1)); ++ DUMPREG(DISPC_VID_FIFO_THRESHOLD(1)); ++ DUMPREG(DISPC_VID_FIFO_SIZE_STATUS(1)); ++ DUMPREG(DISPC_VID_ROW_INC(1)); ++ DUMPREG(DISPC_VID_PIXEL_INC(1)); ++ DUMPREG(DISPC_VID_FIR(1)); ++ DUMPREG(DISPC_VID_PICTURE_SIZE(1)); ++ DUMPREG(DISPC_VID_ACCU0(1)); ++ DUMPREG(DISPC_VID_ACCU1(1)); ++ ++ DUMPREG(DISPC_VID_FIR_COEF_H(0, 0)); ++ DUMPREG(DISPC_VID_FIR_COEF_H(0, 1)); ++ DUMPREG(DISPC_VID_FIR_COEF_H(0, 2)); ++ DUMPREG(DISPC_VID_FIR_COEF_H(0, 3)); ++ DUMPREG(DISPC_VID_FIR_COEF_H(0, 4)); ++ DUMPREG(DISPC_VID_FIR_COEF_H(0, 5)); ++ DUMPREG(DISPC_VID_FIR_COEF_H(0, 6)); ++ DUMPREG(DISPC_VID_FIR_COEF_H(0, 7)); ++ DUMPREG(DISPC_VID_FIR_COEF_HV(0, 0)); ++ DUMPREG(DISPC_VID_FIR_COEF_HV(0, 1)); ++ DUMPREG(DISPC_VID_FIR_COEF_HV(0, 2)); ++ DUMPREG(DISPC_VID_FIR_COEF_HV(0, 3)); ++ DUMPREG(DISPC_VID_FIR_COEF_HV(0, 4)); ++ DUMPREG(DISPC_VID_FIR_COEF_HV(0, 5)); ++ DUMPREG(DISPC_VID_FIR_COEF_HV(0, 6)); ++ DUMPREG(DISPC_VID_FIR_COEF_HV(0, 7)); ++ DUMPREG(DISPC_VID_CONV_COEF(0, 0)); ++ DUMPREG(DISPC_VID_CONV_COEF(0, 1)); ++ DUMPREG(DISPC_VID_CONV_COEF(0, 2)); ++ DUMPREG(DISPC_VID_CONV_COEF(0, 3)); ++ DUMPREG(DISPC_VID_CONV_COEF(0, 4)); ++ DUMPREG(DISPC_VID_FIR_COEF_V(0, 0)); ++ DUMPREG(DISPC_VID_FIR_COEF_V(0, 1)); ++ DUMPREG(DISPC_VID_FIR_COEF_V(0, 2)); ++ DUMPREG(DISPC_VID_FIR_COEF_V(0, 3)); ++ DUMPREG(DISPC_VID_FIR_COEF_V(0, 4)); ++ DUMPREG(DISPC_VID_FIR_COEF_V(0, 5)); ++ DUMPREG(DISPC_VID_FIR_COEF_V(0, 6)); ++ DUMPREG(DISPC_VID_FIR_COEF_V(0, 7)); ++ ++ DUMPREG(DISPC_VID_FIR_COEF_H(1, 0)); ++ DUMPREG(DISPC_VID_FIR_COEF_H(1, 1)); ++ DUMPREG(DISPC_VID_FIR_COEF_H(1, 2)); ++ DUMPREG(DISPC_VID_FIR_COEF_H(1, 3)); ++ DUMPREG(DISPC_VID_FIR_COEF_H(1, 4)); ++ DUMPREG(DISPC_VID_FIR_COEF_H(1, 5)); ++ DUMPREG(DISPC_VID_FIR_COEF_H(1, 6)); ++ DUMPREG(DISPC_VID_FIR_COEF_H(1, 7)); ++ DUMPREG(DISPC_VID_FIR_COEF_HV(1, 0)); ++ DUMPREG(DISPC_VID_FIR_COEF_HV(1, 1)); ++ DUMPREG(DISPC_VID_FIR_COEF_HV(1, 2)); ++ DUMPREG(DISPC_VID_FIR_COEF_HV(1, 3)); ++ DUMPREG(DISPC_VID_FIR_COEF_HV(1, 4)); ++ DUMPREG(DISPC_VID_FIR_COEF_HV(1, 5)); ++ DUMPREG(DISPC_VID_FIR_COEF_HV(1, 6)); ++ DUMPREG(DISPC_VID_FIR_COEF_HV(1, 7)); ++ DUMPREG(DISPC_VID_CONV_COEF(1, 0)); ++ DUMPREG(DISPC_VID_CONV_COEF(1, 1)); ++ DUMPREG(DISPC_VID_CONV_COEF(1, 2)); ++ DUMPREG(DISPC_VID_CONV_COEF(1, 3)); ++ DUMPREG(DISPC_VID_CONV_COEF(1, 4)); ++ DUMPREG(DISPC_VID_FIR_COEF_V(1, 0)); ++ DUMPREG(DISPC_VID_FIR_COEF_V(1, 1)); ++ DUMPREG(DISPC_VID_FIR_COEF_V(1, 2)); ++ DUMPREG(DISPC_VID_FIR_COEF_V(1, 3)); ++ DUMPREG(DISPC_VID_FIR_COEF_V(1, 4)); ++ DUMPREG(DISPC_VID_FIR_COEF_V(1, 5)); ++ DUMPREG(DISPC_VID_FIR_COEF_V(1, 6)); ++ DUMPREG(DISPC_VID_FIR_COEF_V(1, 7)); ++ ++ DUMPREG(DISPC_VID_PRELOAD(0)); ++ DUMPREG(DISPC_VID_PRELOAD(1)); ++ ++ dss_clk_disable(DSS_CLK_ICK | DSS_CLK_FCK1); ++#undef DUMPREG ++} ++ ++static void _dispc_set_pol_freq(bool onoff, bool rf, bool ieo, bool ipc, ++ bool ihs, bool ivs, u8 acbi, u8 acb) ++{ ++ u32 l = 0; ++ ++ DSSDBG("onoff %d rf %d ieo %d ipc %d ihs %d ivs %d acbi %d acb %d\n", ++ onoff, rf, ieo, ipc, ihs, ivs, acbi, acb); ++ ++ l |= FLD_VAL(onoff, 17, 17); ++ l |= FLD_VAL(rf, 16, 16); ++ l |= FLD_VAL(ieo, 15, 15); ++ l |= FLD_VAL(ipc, 14, 14); ++ l |= FLD_VAL(ihs, 13, 13); ++ l |= FLD_VAL(ivs, 12, 12); ++ l |= FLD_VAL(acbi, 11, 8); ++ l |= FLD_VAL(acb, 7, 0); ++ ++ enable_clocks(1); ++ dispc_write_reg(DISPC_POL_FREQ, l); ++ enable_clocks(0); ++} ++ ++void dispc_set_pol_freq(struct omap_panel *panel) ++{ ++ _dispc_set_pol_freq((panel->config & OMAP_DSS_LCD_ONOFF) != 0, ++ (panel->config & OMAP_DSS_LCD_RF) != 0, ++ (panel->config & OMAP_DSS_LCD_IEO) != 0, ++ (panel->config & OMAP_DSS_LCD_IPC) != 0, ++ (panel->config & OMAP_DSS_LCD_IHS) != 0, ++ (panel->config & OMAP_DSS_LCD_IVS) != 0, ++ panel->acbi, panel->acb); ++} ++ ++void find_lck_pck_divs(bool is_tft, unsigned long req_pck, unsigned long fck, ++ u16 *lck_div, u16 *pck_div) ++{ ++ u16 pcd_min = is_tft ? 2 : 3; ++ unsigned long best_pck; ++ u16 best_ld, cur_ld; ++ u16 best_pd, cur_pd; ++ ++ best_pck = 0; ++ best_ld = 0; ++ best_pd = 0; ++ ++ for (cur_ld = 1; cur_ld <= 255; ++cur_ld) { ++ unsigned long lck = fck / cur_ld; ++ ++ for (cur_pd = pcd_min; cur_pd <= 255; ++cur_pd) { ++ unsigned long pck = lck / cur_pd; ++ long old_delta = abs(best_pck - req_pck); ++ long new_delta = abs(pck - req_pck); ++ ++ if (best_pck == 0 || new_delta < old_delta) { ++ best_pck = pck; ++ best_ld = cur_ld; ++ best_pd = cur_pd; ++ ++ if (pck == req_pck) ++ goto found; ++ } ++ ++ if (pck < req_pck) ++ break; ++ } ++ ++ if (lck / pcd_min < req_pck) ++ break; ++ } ++ ++found: ++ *lck_div = best_ld; ++ *pck_div = best_pd; ++} ++ ++int dispc_calc_clock_div(bool is_tft, unsigned long req_pck, ++ struct dispc_clock_info *cinfo) ++{ ++ unsigned long prate; ++ struct dispc_clock_info cur, best; ++ int match = 0; ++ int min_fck_per_pck; ++ unsigned long fck_rate = dss_clk_get_rate(DSS_CLK_FCK1); ++ ++ if (cpu_is_omap34xx()) ++ prate = clk_get_rate(clk_get_parent(dispc.dpll4_m4_ck)); ++ else ++ prate = 0; ++ ++ if (req_pck == dispc.cache_req_pck && ++ ((cpu_is_omap34xx() && prate == dispc.cache_prate) || ++ dispc.cache_cinfo.fck == fck_rate)) { ++ DSSDBG("dispc clock info found from cache.\n"); ++ *cinfo = dispc.cache_cinfo; ++ return 0; ++ } ++ ++ min_fck_per_pck = CONFIG_OMAP2_DSS_MIN_FCK_PER_PCK; ++ ++ if (min_fck_per_pck && ++ req_pck * min_fck_per_pck > DISPC_MAX_FCK) { ++ DSSERR("Requested pixel clock not possible with the current " ++ "OMAP2_DSS_MIN_FCK_PER_PCK setting. Turning " ++ "the constraint off.\n"); ++ min_fck_per_pck = 0; ++ } ++ ++retry: ++ memset(&cur, 0, sizeof(cur)); ++ memset(&best, 0, sizeof(best)); ++ ++ if (cpu_is_omap24xx()) { ++ /* XXX can we change the clock on omap2? */ ++ cur.fck = dss_clk_get_rate(DSS_CLK_FCK1); ++ cur.fck_div = 1; ++ ++ match = 1; ++ ++ find_lck_pck_divs(is_tft, req_pck, cur.fck, ++ &cur.lck_div, &cur.pck_div); ++ ++ cur.lck = cur.fck / cur.lck_div; ++ cur.pck = cur.lck / cur.pck_div; ++ ++ best = cur; ++ ++ goto found; ++ } else if (cpu_is_omap34xx()) { ++ for (cur.fck_div = 16; cur.fck_div > 0; --cur.fck_div) { ++ cur.fck = prate / cur.fck_div * 2; ++ ++ if (cur.fck > DISPC_MAX_FCK) ++ continue; ++ ++ if (min_fck_per_pck && ++ cur.fck < req_pck * min_fck_per_pck) ++ continue; ++ ++ match = 1; ++ ++ find_lck_pck_divs(is_tft, req_pck, cur.fck, ++ &cur.lck_div, &cur.pck_div); ++ ++ cur.lck = cur.fck / cur.lck_div; ++ cur.pck = cur.lck / cur.pck_div; ++ ++ if (abs(cur.pck - req_pck) < abs(best.pck - req_pck)) { ++ best = cur; ++ ++ if (cur.pck == req_pck) ++ goto found; ++ } ++ } ++ } else { ++ BUG(); ++ } ++ ++found: ++ if (!match) { ++ if (min_fck_per_pck) { ++ DSSERR("Could not find suitable clock settings.\n" ++ "Turning FCK/PCK constraint off and" ++ "trying again.\n"); ++ min_fck_per_pck = 0; ++ goto retry; ++ } ++ ++ DSSERR("Could not find suitable clock settings.\n"); ++ ++ return -EINVAL; ++ } ++ ++ if (cinfo) ++ *cinfo = best; ++ ++ dispc.cache_req_pck = req_pck; ++ dispc.cache_prate = prate; ++ dispc.cache_cinfo = best; ++ ++ return 0; ++} ++ ++int dispc_set_clock_div(struct dispc_clock_info *cinfo) ++{ ++ unsigned long prate; ++ int r; ++ ++ if (cpu_is_omap34xx()) { ++ prate = clk_get_rate(clk_get_parent(dispc.dpll4_m4_ck)); ++ DSSDBG("dpll4_m4 = %ld\n", prate); ++ } ++ ++ DSSDBG("fck = %ld (%d)\n", cinfo->fck, cinfo->fck_div); ++ DSSDBG("lck = %ld (%d)\n", cinfo->lck, cinfo->lck_div); ++ DSSDBG("pck = %ld (%d)\n", cinfo->pck, cinfo->pck_div); ++ ++ if (cpu_is_omap34xx()) { ++ r = clk_set_rate(dispc.dpll4_m4_ck, prate / cinfo->fck_div); ++ if (r) ++ return r; ++ } ++ ++ dispc_set_lcd_divisor(cinfo->lck_div, cinfo->pck_div); ++ ++ return 0; ++} ++ ++int dispc_get_clock_div(struct dispc_clock_info *cinfo) ++{ ++ cinfo->fck = dss_clk_get_rate(DSS_CLK_FCK1); ++ ++ if (cpu_is_omap34xx()) { ++ unsigned long prate; ++ prate = clk_get_rate(clk_get_parent(dispc.dpll4_m4_ck)); ++ cinfo->fck_div = prate / (cinfo->fck / 2); ++ } else { ++ cinfo->fck_div = 0; ++ } ++ ++ cinfo->lck_div = REG_GET(DISPC_DIVISOR, 23, 16); ++ cinfo->pck_div = REG_GET(DISPC_DIVISOR, 7, 0); ++ ++ cinfo->lck = cinfo->fck / cinfo->lck_div; ++ cinfo->pck = cinfo->lck / cinfo->pck_div; ++ ++ return 0; ++} ++ ++static void omap_dispc_set_irqs(void) ++{ ++ unsigned long flags; ++ u32 mask = dispc.irq_error_mask; ++ int i; ++ struct omap_dispc_isr_data *isr_data; ++ ++ spin_lock_irqsave(&dispc.irq_lock, flags); ++ ++ for (i = 0; i < DISPC_MAX_NR_ISRS; i++) { ++ isr_data = &dispc.registered_isr[i]; ++ ++ if (isr_data->isr == NULL) ++ continue; ++ ++ mask |= isr_data->mask; ++ } ++ ++ enable_clocks(1); ++ dispc_write_reg(DISPC_IRQENABLE, mask); ++ enable_clocks(0); ++ ++ spin_unlock_irqrestore(&dispc.irq_lock, flags); ++} ++ ++int omap_dispc_register_isr(omap_dispc_isr_t isr, void *arg, u32 mask) ++{ ++ int i; ++ int ret; ++ unsigned long flags; ++ struct omap_dispc_isr_data *isr_data; ++ ++ if (isr == NULL) ++ return -EINVAL; ++ ++ spin_lock_irqsave(&dispc.irq_lock, flags); ++ ++ /* check for duplicate entry */ ++ for (i = 0; i < DISPC_MAX_NR_ISRS; i++) { ++ isr_data = &dispc.registered_isr[i]; ++ if (isr_data->isr == isr && isr_data->arg == arg && ++ isr_data->mask == mask) { ++ ret = -EINVAL; ++ goto err; ++ } ++ } ++ ++ isr_data = NULL; ++ ret = -EBUSY; ++ ++ for (i = 0; i < DISPC_MAX_NR_ISRS; i++) { ++ isr_data = &dispc.registered_isr[i]; ++ ++ if (isr_data->isr != NULL) ++ continue; ++ ++ isr_data->isr = isr; ++ isr_data->arg = arg; ++ isr_data->mask = mask; ++ ret = 0; ++ ++ break; ++ } ++err: ++ spin_unlock_irqrestore(&dispc.irq_lock, flags); ++ ++ if (ret == 0) ++ omap_dispc_set_irqs(); ++ ++ return ret; ++} ++EXPORT_SYMBOL(omap_dispc_register_isr); ++ ++int omap_dispc_unregister_isr(omap_dispc_isr_t isr, void *arg, u32 mask) ++{ ++ int i; ++ unsigned long flags; ++ int ret = -EINVAL; ++ struct omap_dispc_isr_data *isr_data; ++ ++ spin_lock_irqsave(&dispc.irq_lock, flags); ++ ++ for (i = 0; i < DISPC_MAX_NR_ISRS; i++) { ++ isr_data = &dispc.registered_isr[i]; ++ if (isr_data->isr != isr || isr_data->arg != arg || ++ isr_data->mask != mask) ++ continue; ++ ++ /* found the correct isr */ ++ ++ isr_data->isr = NULL; ++ isr_data->arg = NULL; ++ isr_data->mask = 0; ++ ++ ret = 0; ++ break; ++ } ++ ++ spin_unlock_irqrestore(&dispc.irq_lock, flags); ++ ++ if (ret == 0) ++ omap_dispc_set_irqs(); ++ ++ return ret; ++} ++EXPORT_SYMBOL(omap_dispc_unregister_isr); ++ ++#ifdef DEBUG ++static void print_irq_status(u32 status) ++{ ++ if ((status & dispc.irq_error_mask) == 0) ++ return; ++ ++ printk(KERN_DEBUG "DISPC IRQ: 0x%x: ", status); ++ ++#define PIS(x) \ ++ if (status & DISPC_IRQ_##x) \ ++ printk(#x " "); ++ PIS(GFX_FIFO_UNDERFLOW); ++ PIS(OCP_ERR); ++ PIS(VID1_FIFO_UNDERFLOW); ++ PIS(VID2_FIFO_UNDERFLOW); ++ PIS(SYNC_LOST); ++ PIS(SYNC_LOST_DIGIT); ++#undef PIS ++ ++ printk("\n"); ++} ++#endif ++ ++/* Called from dss.c. Note that we don't touch clocks here, ++ * but we presume they are on because we got an IRQ. However, ++ * an irq handler may turn the clocks off, so we may not have ++ * clock later in the function. */ ++void dispc_irq_handler(void) ++{ ++ int i; ++ u32 irqstatus = dispc_read_reg(DISPC_IRQSTATUS); ++ u32 handledirqs = 0; ++ u32 unhandled_errors; ++ struct omap_dispc_isr_data *isr_data; ++ ++#ifdef DEBUG ++ if (dss_debug) ++ print_irq_status(irqstatus); ++#endif ++ /* Ack the interrupt. Do it here before clocks are possibly turned ++ * off */ ++ dispc_write_reg(DISPC_IRQSTATUS, irqstatus); ++ ++ for (i = 0; i < DISPC_MAX_NR_ISRS; i++) { ++ isr_data = &dispc.registered_isr[i]; ++ ++ if (!isr_data->isr) ++ continue; ++ ++ if (isr_data->mask & irqstatus) { ++ isr_data->isr(isr_data->arg, irqstatus); ++ handledirqs |= isr_data->mask; ++ } ++ } ++ ++ unhandled_errors = irqstatus & ~handledirqs & dispc.irq_error_mask; ++ ++ if (unhandled_errors) { ++ spin_lock(&dispc.error_lock); ++ dispc.error_irqs |= unhandled_errors; ++ spin_unlock(&dispc.error_lock); ++ ++ dispc.irq_error_mask &= ~unhandled_errors; ++ omap_dispc_set_irqs(); ++ ++ schedule_work(&dispc.error_work); ++ } ++} ++ ++static void dispc_error_worker(struct work_struct *work) ++{ ++ int i; ++ u32 errors; ++ unsigned long flags; ++ ++ spin_lock_irqsave(&dispc.error_lock, flags); ++ errors = dispc.error_irqs; ++ dispc.error_irqs = 0; ++ spin_unlock_irqrestore(&dispc.error_lock, flags); ++ ++ if (errors & DISPC_IRQ_GFX_FIFO_UNDERFLOW) { ++ DSSERR("GFX_FIFO_UNDERFLOW, disabling GFX\n"); ++ for (i = 0; i < omap_dss_get_num_overlays(); ++i) { ++ struct omap_overlay *ovl; ++ ovl = omap_dss_get_overlay(i); ++ ++ if (!(ovl->caps & OMAP_DSS_OVL_CAP_DISPC)) ++ continue; ++ ++ if (ovl->id == 0) { ++ dispc_enable_plane(ovl->id, 0); ++ dispc_go(ovl->manager->id); ++ mdelay(50); ++ break; ++ } ++ } ++ } ++ ++ if (errors & DISPC_IRQ_VID1_FIFO_UNDERFLOW) { ++ DSSERR("VID1_FIFO_UNDERFLOW, disabling VID1\n"); ++ for (i = 0; i < omap_dss_get_num_overlays(); ++i) { ++ struct omap_overlay *ovl; ++ ovl = omap_dss_get_overlay(i); ++ ++ if (!(ovl->caps & OMAP_DSS_OVL_CAP_DISPC)) ++ continue; ++ ++ if (ovl->id == 1) { ++ dispc_enable_plane(ovl->id, 0); ++ dispc_go(ovl->manager->id); ++ mdelay(50); ++ break; ++ } ++ } ++ } ++ ++ if (errors & DISPC_IRQ_VID2_FIFO_UNDERFLOW) { ++ DSSERR("VID2_FIFO_UNDERFLOW, disabling VID2\n"); ++ for (i = 0; i < omap_dss_get_num_overlays(); ++i) { ++ struct omap_overlay *ovl; ++ ovl = omap_dss_get_overlay(i); ++ ++ if (!(ovl->caps & OMAP_DSS_OVL_CAP_DISPC)) ++ continue; ++ ++ if (ovl->id == 2) { ++ dispc_enable_plane(ovl->id, 0); ++ dispc_go(ovl->manager->id); ++ mdelay(50); ++ break; ++ } ++ } ++ } ++ ++ if (errors & DISPC_IRQ_SYNC_LOST) { ++ DSSERR("SYNC_LOST, disabling LCD\n"); ++ for (i = 0; i < omap_dss_get_num_overlay_managers(); ++i) { ++ struct omap_overlay_manager *mgr; ++ mgr = omap_dss_get_overlay_manager(i); ++ ++ if (mgr->id == OMAP_DSS_CHANNEL_LCD) { ++ mgr->display->disable(mgr->display); ++ break; ++ } ++ } ++ } ++ ++ if (errors & DISPC_IRQ_SYNC_LOST_DIGIT) { ++ DSSERR("SYNC_LOST_DIGIT, disabling TV\n"); ++ for (i = 0; i < omap_dss_get_num_overlay_managers(); ++i) { ++ struct omap_overlay_manager *mgr; ++ mgr = omap_dss_get_overlay_manager(i); ++ ++ if (mgr->id == OMAP_DSS_CHANNEL_DIGIT) { ++ mgr->display->disable(mgr->display); ++ break; ++ } ++ } ++ } ++ ++ if (errors & DISPC_IRQ_OCP_ERR) { ++ DSSERR("OCP_ERR\n"); ++ for (i = 0; i < omap_dss_get_num_overlay_managers(); ++i) { ++ struct omap_overlay_manager *mgr; ++ mgr = omap_dss_get_overlay_manager(i); ++ ++ if (mgr->caps & OMAP_DSS_OVL_CAP_DISPC) ++ mgr->display->disable(mgr->display); ++ } ++ } ++ ++ dispc.irq_error_mask |= errors; ++ omap_dispc_set_irqs(); ++} ++ ++int omap_dispc_wait_for_irq_timeout(u32 irqmask, unsigned long timeout) ++{ ++ void dispc_irq_wait_handler(void *data, u32 mask) ++ { ++ complete((struct completion *)data); ++ } ++ ++ int r; ++ DECLARE_COMPLETION_ONSTACK(completion); ++ ++ r = omap_dispc_register_isr(dispc_irq_wait_handler, &completion, ++ irqmask); ++ ++ if (r) ++ return r; ++ ++ timeout = wait_for_completion_timeout(&completion, timeout); ++ ++ omap_dispc_unregister_isr(dispc_irq_wait_handler, &completion, irqmask); ++ ++ if (timeout == 0) ++ return -ETIMEDOUT; ++ ++ if (timeout == -ERESTARTSYS) ++ return -ERESTARTSYS; ++ ++ return 0; ++} ++ ++int omap_dispc_wait_for_irq_interruptible_timeout(u32 irqmask, ++ unsigned long timeout) ++{ ++ void dispc_irq_wait_handler(void *data, u32 mask) ++ { ++ complete((struct completion *)data); ++ } ++ ++ int r; ++ DECLARE_COMPLETION_ONSTACK(completion); ++ ++ r = omap_dispc_register_isr(dispc_irq_wait_handler, &completion, ++ irqmask); ++ ++ if (r) ++ return r; ++ ++ timeout = wait_for_completion_interruptible_timeout(&completion, ++ timeout); ++ ++ omap_dispc_unregister_isr(dispc_irq_wait_handler, &completion, irqmask); ++ ++ if (timeout == 0) ++ return -ETIMEDOUT; ++ ++ if (timeout == -ERESTARTSYS) ++ return -ERESTARTSYS; ++ ++ return 0; ++} ++ ++#ifdef CONFIG_OMAP2_DSS_FAKE_VSYNC ++void dispc_fake_vsync_irq(void) ++{ ++ u32 irqstatus = DISPC_IRQ_VSYNC; ++ int i; ++ ++ for (i = 0; i < DISPC_MAX_NR_ISRS; i++) { ++ struct omap_dispc_isr_data *isr_data; ++ isr_data = &dispc.registered_isr[i]; ++ ++ if (!isr_data->isr) ++ continue; ++ ++ if (isr_data->mask & irqstatus) ++ isr_data->isr(isr_data->arg, irqstatus); ++ } ++} ++#endif ++ ++static void _omap_dispc_initialize_irq(void) ++{ ++ memset(dispc.registered_isr, 0, sizeof(dispc.registered_isr)); ++ ++ dispc.irq_error_mask = DISPC_IRQ_MASK_ERROR; ++ ++ /* there's SYNC_LOST_DIGIT waiting after enabling the DSS, ++ * so clear it */ ++ dispc_write_reg(DISPC_IRQSTATUS, dispc_read_reg(DISPC_IRQSTATUS)); ++ ++ omap_dispc_set_irqs(); ++} ++ ++static void _omap_dispc_initial_config(void) ++{ ++ u32 l; ++ ++ l = dispc_read_reg(DISPC_SYSCONFIG); ++ l = FLD_MOD(l, 2, 13, 12); /* MIDLEMODE: smart standby */ ++ l = FLD_MOD(l, 2, 4, 3); /* SIDLEMODE: smart idle */ ++ l = FLD_MOD(l, 1, 2, 2); /* ENWAKEUP */ ++ l = FLD_MOD(l, 1, 0, 0); /* AUTOIDLE */ ++ dispc_write_reg(DISPC_SYSCONFIG, l); ++ ++ /* FUNCGATED */ ++ REG_FLD_MOD(DISPC_CONFIG, 1, 9, 9); ++ ++ /* L3 firewall setting: enable access to OCM RAM */ ++ if (cpu_is_omap24xx()) ++ __raw_writel(0x402000b0, IO_ADDRESS(0x680050a0)); ++ ++ _dispc_setup_color_conv_coef(); ++ ++ dispc_set_loadmode(OMAP_DSS_LOAD_FRAME_ONLY); ++} ++ ++int dispc_init(void) ++{ ++ u32 rev; ++ ++ spin_lock_init(&dispc.irq_lock); ++ spin_lock_init(&dispc.error_lock); ++ ++ INIT_WORK(&dispc.error_work, dispc_error_worker); ++ ++ dispc.base = ioremap(DISPC_BASE, DISPC_SZ_REGS); ++ if (!dispc.base) { ++ DSSERR("can't ioremap DISPC\n"); ++ return -ENOMEM; ++ } ++ ++ if (cpu_is_omap34xx()) { ++ dispc.dpll4_m4_ck = clk_get(NULL, "dpll4_m4_ck"); ++ if (IS_ERR(dispc.dpll4_m4_ck)) { ++ DSSERR("Failed to get dpll4_m4_ck\n"); ++ return -ENODEV; ++ } ++ } ++ ++ enable_clocks(1); ++ ++ _omap_dispc_initial_config(); ++ ++ _omap_dispc_initialize_irq(); ++ ++ dispc_save_context(); ++ ++ rev = dispc_read_reg(DISPC_REVISION); ++ printk(KERN_INFO "OMAP DISPC rev %d.%d\n", ++ FLD_GET(rev, 7, 4), FLD_GET(rev, 3, 0)); ++ ++ enable_clocks(0); ++ ++ return 0; ++} ++ ++void dispc_exit(void) ++{ ++ if (cpu_is_omap34xx()) ++ clk_put(dispc.dpll4_m4_ck); ++ iounmap(dispc.base); ++} ++ ++int dispc_enable_plane(enum omap_plane plane, bool enable) ++{ ++ DSSDBG("dispc_enable_plane %d, %d\n", plane, enable); ++ ++ enable_clocks(1); ++ _dispc_enable_plane(plane, enable); ++ enable_clocks(0); ++ ++ return 0; ++} ++ ++int dispc_setup_plane(enum omap_plane plane, enum omap_channel channel_out, ++ u32 paddr, u16 screen_width, ++ u16 pos_x, u16 pos_y, ++ u16 width, u16 height, ++ u16 out_width, u16 out_height, ++ enum omap_color_mode color_mode, ++ bool ilace, ++ u8 rotation, bool mirror) ++{ ++ int r = 0; ++ ++ DSSDBG("dispc_setup_plane %d, ch %d, pa %x, sw %d, %d,%d, %dx%d -> " ++ "%dx%d, ilace %d, cmode %x, rot %d, mir %d\n", ++ plane, channel_out, paddr, screen_width, pos_x, pos_y, ++ width, height, ++ out_width, out_height, ++ ilace, color_mode, ++ rotation, mirror); ++ ++ enable_clocks(1); ++ ++ r = _dispc_setup_plane(plane, channel_out, ++ paddr, screen_width, ++ pos_x, pos_y, ++ width, height, ++ out_width, out_height, ++ color_mode, ilace, ++ rotation, mirror); ++ ++ enable_clocks(0); ++ ++ return r; ++} ++ ++static int dispc_is_intersecting(int x1, int y1, int w1, int h1, ++ int x2, int y2, int w2, int h2) ++{ ++ if (x1 >= (x2+w2)) ++ return 0; ++ ++ if ((x1+w1) <= x2) ++ return 0; ++ ++ if (y1 >= (y2+h2)) ++ return 0; ++ ++ if ((y1+h1) <= y2) ++ return 0; ++ ++ return 1; ++} ++ ++static int dispc_is_overlay_scaled(struct omap_overlay_info *pi) ++{ ++ if (pi->width != pi->out_width) ++ return 1; ++ ++ if (pi->height != pi->out_height) ++ return 1; ++ ++ return 0; ++} ++ ++/* returns the area that needs updating */ ++void dispc_setup_partial_planes(struct omap_display *display, ++ u16 *xi, u16 *yi, u16 *wi, u16 *hi) ++{ ++ struct omap_overlay_manager *mgr; ++ int i; ++ ++ int x, y, w, h; ++ ++ x = *xi; ++ y = *yi; ++ w = *wi; ++ h = *hi; ++ ++ DSSDBG("dispc_setup_partial_planes %d,%d %dx%d\n", ++ *xi, *yi, *wi, *hi); ++ ++ ++ mgr = display->manager; ++ ++ if (!mgr) { ++ DSSDBG("no manager\n"); ++ return; ++ } ++ ++ for (i = 0; i < mgr->num_overlays; i++) { ++ struct omap_overlay *ovl; ++ struct omap_overlay_info *pi; ++ ovl = mgr->overlays[i]; ++ ++ if (ovl->manager != mgr) ++ continue; ++ ++ if ((ovl->caps & OMAP_DSS_OVL_CAP_SCALE) == 0) ++ continue; ++ ++ pi = &ovl->info; ++ ++ if (!pi->enabled) ++ continue; ++ /* ++ * If the plane is intersecting and scaled, we ++ * enlarge the update region to accomodate the ++ * whole area ++ */ ++ ++ if (dispc_is_intersecting(x, y, w, h, ++ pi->pos_x, pi->pos_y, ++ pi->out_width, pi->out_height)) { ++ if (dispc_is_overlay_scaled(pi)) { ++ ++ int x1, y1, x2, y2; ++ ++ if (x > pi->pos_x) ++ x1 = pi->pos_x; ++ else ++ x1 = x; ++ ++ if (y > pi->pos_y) ++ y1 = pi->pos_y; ++ else ++ y1 = y; ++ ++ if ((x + w) < (pi->pos_x + pi->out_width)) ++ x2 = pi->pos_x + pi->out_width; ++ else ++ x2 = x + w; ++ ++ if ((y + h) < (pi->pos_y + pi->out_height)) ++ y2 = pi->pos_y + pi->out_height; ++ else ++ y2 = y + h; ++ ++ x = x1; ++ y = y1; ++ w = x2 - x1; ++ h = y2 - y1; ++ ++ DSSDBG("Update area after enlarge due to " ++ "scaling %d, %d %dx%d\n", ++ x, y, w, h); ++ } ++ } ++ } ++ ++ for (i = 0; i < mgr->num_overlays; i++) { ++ struct omap_overlay *ovl = mgr->overlays[i]; ++ struct omap_overlay_info *pi = &ovl->info; ++ ++ int px = pi->pos_x; ++ int py = pi->pos_y; ++ int pw = pi->width; ++ int ph = pi->height; ++ int pow = pi->out_width; ++ int poh = pi->out_height; ++ u32 pa = pi->paddr; ++ int psw = pi->screen_width; ++ int bpp; ++ ++ if (ovl->manager != mgr) ++ continue; ++ ++ /* ++ * If plane is not enabled or the update region ++ * does not intersect with the plane in question, ++ * we really disable the plane from hardware ++ */ ++ ++ if (!pi->enabled || ++ !dispc_is_intersecting(x, y, w, h, ++ px, py, pow, poh)) { ++ dispc_enable_plane(ovl->id, 0); ++ continue; ++ } ++ ++ switch (pi->color_mode) { ++ case OMAP_DSS_COLOR_RGB16: ++ case OMAP_DSS_COLOR_ARGB16: ++ case OMAP_DSS_COLOR_YUV2: ++ case OMAP_DSS_COLOR_UYVY: ++ bpp = 16; ++ break; ++ ++ case OMAP_DSS_COLOR_RGB24P: ++ bpp = 24; ++ break; ++ ++ case OMAP_DSS_COLOR_RGB24U: ++ case OMAP_DSS_COLOR_ARGB32: ++ case OMAP_DSS_COLOR_RGBA32: ++ case OMAP_DSS_COLOR_RGBX32: ++ bpp = 32; ++ break; ++ ++ default: ++ BUG(); ++ return; ++ } ++ ++ if (x > pi->pos_x) { ++ px = 0; ++ pw -= (x - pi->pos_x); ++ pa += (x - pi->pos_x) * bpp / 8; ++ } else { ++ px = pi->pos_x - x; ++ } ++ ++ if (y > pi->pos_y) { ++ py = 0; ++ ph -= (y - pi->pos_y); ++ pa += (y - pi->pos_y) * psw * bpp / 8; ++ } else { ++ py = pi->pos_y - y; ++ } ++ ++ if (w < (px+pw)) ++ pw -= (px+pw) - (w); ++ ++ if (h < (py+ph)) ++ ph -= (py+ph) - (h); ++ ++ /* Can't scale the GFX plane */ ++ if ((ovl->caps & OMAP_DSS_OVL_CAP_SCALE) == 0 || ++ dispc_is_overlay_scaled(pi) == 0) { ++ pow = pw; ++ poh = ph; ++ } ++ ++ DSSDBG("calc plane %d, %x, sw %d, %d,%d, %dx%d -> %dx%d\n", ++ ovl->id, pa, psw, px, py, pw, ph, pow, poh); ++ ++ dispc_setup_plane(ovl->id, mgr->id, ++ pa, psw, ++ px, py, ++ pw, ph, ++ pow, poh, ++ pi->color_mode, 0, ++ pi->rotation, // XXX rotation probably wrong ++ pi->mirror); ++ ++ dispc_enable_plane(ovl->id, 1); ++ } ++ ++ *xi = x; ++ *yi = y; ++ *wi = w; ++ *hi = h; ++ ++} ++ +diff --git a/drivers/video/omap2/dss/display.c b/drivers/video/omap2/dss/display.c +new file mode 100644 +index 0000000..9aaf392 +--- /dev/null ++++ b/drivers/video/omap2/dss/display.c +@@ -0,0 +1,693 @@ ++/* ++ * linux/drivers/video/omap2/dss/display.c ++ * ++ * Copyright (C) 2009 Nokia Corporation ++ * Author: Tomi Valkeinen <tomi.valkeinen@nokia.com> ++ * ++ * Some code and ideas taken from drivers/video/omap/ driver ++ * by Imre Deak. ++ * ++ * This program is free software; you can redistribute it and/or modify it ++ * under the terms of the GNU General Public License version 2 as published by ++ * the Free Software Foundation. ++ * ++ * This program is distributed in the hope that it will be useful, but WITHOUT ++ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or ++ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for ++ * more details. ++ * ++ * You should have received a copy of the GNU General Public License along with ++ * this program. If not, see <http://www.gnu.org/licenses/>. ++ */ ++ ++#define DSS_SUBSYS_NAME "DISPLAY" ++ ++#include <linux/kernel.h> ++#include <linux/module.h> ++#include <linux/jiffies.h> ++#include <linux/list.h> ++#include <linux/platform_device.h> ++ ++#include <mach/display.h> ++#include "dss.h" ++ ++static int num_displays; ++static LIST_HEAD(display_list); ++ ++static ssize_t display_name_show(struct omap_display *display, char *buf) ++{ ++ return snprintf(buf, PAGE_SIZE, "%s\n", display->name); ++} ++ ++static ssize_t display_enabled_show(struct omap_display *display, char *buf) ++{ ++ bool enabled = display->state != OMAP_DSS_DISPLAY_DISABLED; ++ ++ return snprintf(buf, PAGE_SIZE, "%d\n", enabled); ++} ++ ++static ssize_t display_enabled_store(struct omap_display *display, ++ const char *buf, size_t size) ++{ ++ bool enabled, r; ++ ++ enabled = simple_strtoul(buf, NULL, 10); ++ ++ if (enabled != (display->state != OMAP_DSS_DISPLAY_DISABLED)) { ++ if (enabled) { ++ r = display->enable(display); ++ if (r) ++ return r; ++ } else { ++ display->disable(display); ++ } ++ } ++ ++ return size; ++} ++ ++static ssize_t display_upd_mode_show(struct omap_display *display, char *buf) ++{ ++ enum omap_dss_update_mode mode = OMAP_DSS_UPDATE_AUTO; ++ if (display->get_update_mode) ++ mode = display->get_update_mode(display); ++ return snprintf(buf, PAGE_SIZE, "%d\n", mode); ++} ++ ++static ssize_t display_upd_mode_store(struct omap_display *display, ++ const char *buf, size_t size) ++{ ++ int val, r; ++ enum omap_dss_update_mode mode; ++ ++ val = simple_strtoul(buf, NULL, 10); ++ ++ switch (val) { ++ case OMAP_DSS_UPDATE_DISABLED: ++ case OMAP_DSS_UPDATE_AUTO: ++ case OMAP_DSS_UPDATE_MANUAL: ++ mode = (enum omap_dss_update_mode)val; ++ break; ++ default: ++ return -EINVAL; ++ } ++ ++ if ((r = display->set_update_mode(display, mode))) ++ return r; ++ ++ return size; ++} ++ ++static ssize_t display_tear_show(struct omap_display *display, char *buf) ++{ ++ return snprintf(buf, PAGE_SIZE, "%d\n", ++ display->get_te ? display->get_te(display) : 0); ++} ++ ++static ssize_t display_tear_store(struct omap_display *display, ++ const char *buf, size_t size) ++{ ++ unsigned long te; ++ int r; ++ ++ if (!display->enable_te || !display->get_te) ++ return -ENOENT; ++ ++ te = simple_strtoul(buf, NULL, 0); ++ ++ if ((r = display->enable_te(display, te))) ++ return r; ++ ++ return size; ++} ++ ++static ssize_t display_timings_show(struct omap_display *display, char *buf) ++{ ++ struct omap_video_timings t; ++ ++ if (!display->get_timings) ++ return -ENOENT; ++ ++ display->get_timings(display, &t); ++ ++ return snprintf(buf, PAGE_SIZE, "%u,%u/%u/%u/%u,%u/%u/%u/%u\n", ++ t.pixel_clock, ++ t.x_res, t.hfp, t.hbp, t.hsw, ++ t.y_res, t.vfp, t.vbp, t.vsw); ++} ++ ++static ssize_t display_timings_store(struct omap_display *display, ++ const char *buf, size_t size) ++{ ++ struct omap_video_timings t; ++ int r, found; ++ ++ if (!display->set_timings || !display->check_timings) ++ return -ENOENT; ++ ++ found = 0; ++#ifdef CONFIG_OMAP2_DSS_VENC ++ if (strncmp("pal", buf, 3) == 0) { ++ t = omap_dss_pal_timings; ++ found = 1; ++ } else if (strncmp("ntsc", buf, 4) == 0) { ++ t = omap_dss_ntsc_timings; ++ found = 1; ++ } ++#endif ++ if (!found && sscanf(buf, "%u,%hu/%hu/%hu/%hu,%hu/%hu/%hu/%hu", ++ &t.pixel_clock, ++ &t.x_res, &t.hfp, &t.hbp, &t.hsw, ++ &t.y_res, &t.vfp, &t.vbp, &t.vsw) != 9) ++ return -EINVAL; ++ ++ if ((r = display->check_timings(display, &t))) ++ return r; ++ ++ display->set_timings(display, &t); ++ ++ return size; ++} ++ ++static ssize_t display_rotate_show(struct omap_display *display, char *buf) ++{ ++ int rotate; ++ if (!display->get_rotate) ++ return -ENOENT; ++ rotate = display->get_rotate(display); ++ return snprintf(buf, PAGE_SIZE, "%u\n", rotate); ++} ++ ++static ssize_t display_rotate_store(struct omap_display *display, ++ const char *buf, size_t size) ++{ ++ unsigned long rot; ++ int r; ++ ++ if (!display->set_rotate || !display->get_rotate) ++ return -ENOENT; ++ ++ rot = simple_strtoul(buf, NULL, 0); ++ ++ if ((r = display->set_rotate(display, rot))) ++ return r; ++ ++ return size; ++} ++ ++static ssize_t display_mirror_show(struct omap_display *display, char *buf) ++{ ++ int mirror; ++ if (!display->get_mirror) ++ return -ENOENT; ++ mirror = display->get_mirror(display); ++ return snprintf(buf, PAGE_SIZE, "%u\n", mirror); ++} ++ ++static ssize_t display_mirror_store(struct omap_display *display, ++ const char *buf, size_t size) ++{ ++ unsigned long mirror; ++ int r; ++ ++ if (!display->set_mirror || !display->get_mirror) ++ return -ENOENT; ++ ++ mirror = simple_strtoul(buf, NULL, 0); ++ ++ if ((r = display->set_mirror(display, mirror))) ++ return r; ++ ++ return size; ++} ++ ++static ssize_t display_panel_name_show(struct omap_display *display, char *buf) ++{ ++ return snprintf(buf, PAGE_SIZE, "%s\n", ++ display->panel ? display->panel->name : ""); ++} ++ ++static ssize_t display_ctrl_name_show(struct omap_display *display, char *buf) ++{ ++ return snprintf(buf, PAGE_SIZE, "%s\n", ++ display->ctrl ? display->ctrl->name : ""); ++} ++ ++struct display_attribute { ++ struct attribute attr; ++ ssize_t (*show)(struct omap_display *, char *); ++ ssize_t (*store)(struct omap_display *, const char *, size_t); ++}; ++ ++#define DISPLAY_ATTR(_name, _mode, _show, _store) \ ++ struct display_attribute display_attr_##_name = \ ++ __ATTR(_name, _mode, _show, _store) ++ ++static DISPLAY_ATTR(name, S_IRUGO, display_name_show, NULL); ++static DISPLAY_ATTR(enabled, S_IRUGO|S_IWUSR, ++ display_enabled_show, display_enabled_store); ++static DISPLAY_ATTR(update_mode, S_IRUGO|S_IWUSR, ++ display_upd_mode_show, display_upd_mode_store); ++static DISPLAY_ATTR(tear_elim, S_IRUGO|S_IWUSR, ++ display_tear_show, display_tear_store); ++static DISPLAY_ATTR(timings, S_IRUGO|S_IWUSR, ++ display_timings_show, display_timings_store); ++static DISPLAY_ATTR(rotate, S_IRUGO|S_IWUSR, ++ display_rotate_show, display_rotate_store); ++static DISPLAY_ATTR(mirror, S_IRUGO|S_IWUSR, ++ display_mirror_show, display_mirror_store); ++static DISPLAY_ATTR(panel_name, S_IRUGO, display_panel_name_show, NULL); ++static DISPLAY_ATTR(ctrl_name, S_IRUGO, display_ctrl_name_show, NULL); ++ ++static struct attribute *display_sysfs_attrs[] = { ++ &display_attr_name.attr, ++ &display_attr_enabled.attr, ++ &display_attr_update_mode.attr, ++ &display_attr_tear_elim.attr, ++ &display_attr_timings.attr, ++ &display_attr_rotate.attr, ++ &display_attr_mirror.attr, ++ &display_attr_panel_name.attr, ++ &display_attr_ctrl_name.attr, ++ NULL ++}; ++ ++static ssize_t display_attr_show(struct kobject *kobj, struct attribute *attr, char *buf) ++{ ++ struct omap_display *display; ++ struct display_attribute *display_attr; ++ ++ display = container_of(kobj, struct omap_display, kobj); ++ display_attr = container_of(attr, struct display_attribute, attr); ++ ++ if (!display_attr->show) ++ return -ENOENT; ++ ++ return display_attr->show(display, buf); ++} ++ ++static ssize_t display_attr_store(struct kobject *kobj, struct attribute *attr, ++ const char *buf, size_t size) ++{ ++ struct omap_display *display; ++ struct display_attribute *display_attr; ++ ++ display = container_of(kobj, struct omap_display, kobj); ++ display_attr = container_of(attr, struct display_attribute, attr); ++ ++ if (!display_attr->store) ++ return -ENOENT; ++ ++ return display_attr->store(display, buf, size); ++} ++ ++static struct sysfs_ops display_sysfs_ops = { ++ .show = display_attr_show, ++ .store = display_attr_store, ++}; ++ ++static struct kobj_type display_ktype = { ++ .sysfs_ops = &display_sysfs_ops, ++ .default_attrs = display_sysfs_attrs, ++}; ++ ++static void default_get_resolution(struct omap_display *display, ++ u16 *xres, u16 *yres) ++{ ++ *xres = display->panel->timings.x_res; ++ *yres = display->panel->timings.y_res; ++} ++ ++static void default_configure_overlay(struct omap_overlay *ovl) ++{ ++ unsigned low, high, size; ++ enum omap_burst_size burst; ++ enum omap_plane plane = ovl->id; ++ ++ burst = OMAP_DSS_BURST_16x32; ++ size = 16 * 32 / 8; ++ ++ dispc_set_burst_size(plane, burst); ++ ++ high = dispc_get_plane_fifo_size(plane) - 1; ++ low = dispc_get_plane_fifo_size(plane) - size; ++ ++ dispc_setup_plane_fifo(plane, low, high); ++} ++ ++static int default_wait_vsync(struct omap_display *display) ++{ ++ unsigned long timeout = msecs_to_jiffies(500); ++ u32 irq; ++ ++ if (display->type == OMAP_DISPLAY_TYPE_VENC) ++ irq = DISPC_IRQ_EVSYNC_ODD; ++ else ++ irq = DISPC_IRQ_VSYNC; ++ ++ return omap_dispc_wait_for_irq_interruptible_timeout(irq, timeout); ++} ++ ++static int default_get_recommended_bpp(struct omap_display *display) ++{ ++ if (display->panel->recommended_bpp) ++ return display->panel->recommended_bpp; ++ ++ switch (display->type) { ++ case OMAP_DISPLAY_TYPE_DPI: ++ if (display->hw_config.u.dpi.data_lines == 24) ++ return 24; ++ else ++ return 16; ++ ++ case OMAP_DISPLAY_TYPE_DBI: ++ case OMAP_DISPLAY_TYPE_DSI: ++ if (display->ctrl->pixel_size == 24) ++ return 24; ++ else ++ return 16; ++ case OMAP_DISPLAY_TYPE_VENC: ++ case OMAP_DISPLAY_TYPE_SDI: ++ return 24; ++ return 24; ++ default: ++ BUG(); ++ } ++} ++ ++void dss_init_displays(struct platform_device *pdev) ++{ ++ struct omap_dss_board_info *pdata = pdev->dev.platform_data; ++ int i, r; ++ ++ INIT_LIST_HEAD(&display_list); ++ ++ num_displays = 0; ++ ++ for (i = 0; i < pdata->num_displays; ++i) { ++ struct omap_display *display; ++ ++ switch (pdata->displays[i]->type) { ++ case OMAP_DISPLAY_TYPE_DPI: ++#ifdef CONFIG_OMAP2_DSS_RFBI ++ case OMAP_DISPLAY_TYPE_DBI: ++#endif ++#ifdef CONFIG_OMAP2_DSS_SDI ++ case OMAP_DISPLAY_TYPE_SDI: ++#endif ++#ifdef CONFIG_OMAP2_DSS_DSI ++ case OMAP_DISPLAY_TYPE_DSI: ++#endif ++#ifdef CONFIG_OMAP2_DSS_VENC ++ case OMAP_DISPLAY_TYPE_VENC: ++#endif ++ break; ++ default: ++ DSSERR("Support for display '%s' not compiled in.\n", ++ pdata->displays[i]->name); ++ continue; ++ } ++ ++ display = kzalloc(sizeof(*display), GFP_KERNEL); ++ ++ /*atomic_set(&display->ref_count, 0);*/ ++ display->ref_count = 0; ++ ++ display->hw_config = *pdata->displays[i]; ++ display->type = pdata->displays[i]->type; ++ display->name = pdata->displays[i]->name; ++ ++ display->get_resolution = default_get_resolution; ++ display->get_recommended_bpp = default_get_recommended_bpp; ++ display->configure_overlay = default_configure_overlay; ++ display->wait_vsync = default_wait_vsync; ++ ++ switch (display->type) { ++ case OMAP_DISPLAY_TYPE_DPI: ++ dpi_init_display(display); ++ break; ++#ifdef CONFIG_OMAP2_DSS_RFBI ++ case OMAP_DISPLAY_TYPE_DBI: ++ rfbi_init_display(display); ++ break; ++#endif ++#ifdef CONFIG_OMAP2_DSS_VENC ++ case OMAP_DISPLAY_TYPE_VENC: ++ venc_init_display(display); ++ break; ++#endif ++#ifdef CONFIG_OMAP2_DSS_SDI ++ case OMAP_DISPLAY_TYPE_SDI: ++ sdi_init_display(display); ++ break; ++#endif ++#ifdef CONFIG_OMAP2_DSS_DSI ++ case OMAP_DISPLAY_TYPE_DSI: ++ dsi_init_display(display); ++ break; ++#endif ++ default: ++ BUG(); ++ } ++ ++ r = kobject_init_and_add(&display->kobj, &display_ktype, ++ &pdev->dev.kobj, "display%d", num_displays); ++ ++ if (r) { ++ DSSERR("failed to create sysfs file\n"); ++ continue; ++ } ++ ++ num_displays++; ++ ++ list_add_tail(&display->list, &display_list); ++ } ++} ++ ++void dss_uninit_displays(struct platform_device *pdev) ++{ ++ struct omap_display *display; ++ ++ while (!list_empty(&display_list)) { ++ display = list_first_entry(&display_list, ++ struct omap_display, list); ++ list_del(&display->list); ++ kobject_del(&display->kobj); ++ kobject_put(&display->kobj); ++ kfree(display); ++ } ++ ++ num_displays = 0; ++} ++ ++int dss_suspend_all_displays(void) ++{ ++ int r; ++ struct omap_display *display; ++ ++ list_for_each_entry(display, &display_list, list) { ++ if (display->state != OMAP_DSS_DISPLAY_ACTIVE) { ++ display->activate_after_resume = 0; ++ continue; ++ } ++ ++ if (!display->suspend) { ++ DSSERR("display '%s' doesn't implement suspend\n", ++ display->name); ++ r = -ENOSYS; ++ goto err; ++ } ++ ++ r = display->suspend(display); ++ ++ if (r) ++ goto err; ++ ++ display->activate_after_resume = 1; ++ } ++ ++ return 0; ++err: ++ /* resume all displays that were suspended */ ++ dss_resume_all_displays(); ++ return r; ++} ++ ++int dss_resume_all_displays(void) ++{ ++ int r; ++ struct omap_display *display; ++ ++ list_for_each_entry(display, &display_list, list) { ++ if (display->activate_after_resume && display->resume) { ++ r = display->resume(display); ++ if (r) ++ return r; ++ } ++ ++ display->activate_after_resume = 0; ++ } ++ ++ return 0; ++} ++ ++int omap_dss_get_num_displays(void) ++{ ++ return num_displays; ++} ++EXPORT_SYMBOL(omap_dss_get_num_displays); ++ ++struct omap_display *dss_get_display(int no) ++{ ++ int i = 0; ++ struct omap_display *display; ++ ++ list_for_each_entry(display, &display_list, list) { ++ if (i++ == no) ++ return display; ++ } ++ ++ return NULL; ++} ++ ++struct omap_display *omap_dss_get_display(int no) ++{ ++ struct omap_display *display; ++ ++ display = dss_get_display(no); ++ ++ if (!display) ++ return NULL; ++ ++ switch (display->type) { ++ case OMAP_DISPLAY_TYPE_VENC: ++ break; ++ ++ case OMAP_DISPLAY_TYPE_DPI: ++ case OMAP_DISPLAY_TYPE_SDI: ++ if (display->panel == NULL) ++ return NULL; ++ break; ++ ++ case OMAP_DISPLAY_TYPE_DBI: ++ case OMAP_DISPLAY_TYPE_DSI: ++ if (display->panel == NULL || display->ctrl == NULL) ++ return NULL; ++ break; ++ ++ default: ++ return NULL; ++ } ++ ++ if (display->ctrl) { ++ if (!try_module_get(display->ctrl->owner)) ++ goto err0; ++ ++ if (display->ctrl->init) ++ if (display->ctrl->init(display) != 0) ++ goto err1; ++ } ++ ++ if (display->panel) { ++ if (!try_module_get(display->panel->owner)) ++ goto err2; ++ ++ if (display->panel->init) ++ if (display->panel->init(display) != 0) ++ goto err3; ++ } ++ ++ display->ref_count++; ++ /* ++ if (atomic_cmpxchg(&display->ref_count, 0, 1) != 0) ++ return 0; ++*/ ++ ++ return display; ++err3: ++ if (display->panel) ++ module_put(display->panel->owner); ++err2: ++ if (display->ctrl && display->ctrl->cleanup) ++ display->ctrl->cleanup(display); ++err1: ++ if (display->ctrl) ++ module_put(display->ctrl->owner); ++err0: ++ return NULL; ++} ++EXPORT_SYMBOL(omap_dss_get_display); ++ ++void omap_dss_put_display(struct omap_display *display) ++{ ++ if (--display->ref_count > 0) ++ return; ++/* ++ if (atomic_cmpxchg(&display->ref_count, 1, 0) != 1) ++ return; ++*/ ++ if (display->ctrl) { ++ if (display->ctrl->cleanup) ++ display->ctrl->cleanup(display); ++ module_put(display->ctrl->owner); ++ } ++ ++ if (display->panel) { ++ if (display->panel->cleanup) ++ display->panel->cleanup(display); ++ module_put(display->panel->owner); ++ } ++} ++EXPORT_SYMBOL(omap_dss_put_display); ++ ++void omap_dss_register_ctrl(struct omap_ctrl *ctrl) ++{ ++ struct omap_display *display; ++ ++ list_for_each_entry(display, &display_list, list) { ++ if (display->hw_config.ctrl_name && ++ strcmp(display->hw_config.ctrl_name, ctrl->name) == 0) { ++ display->ctrl = ctrl; ++ DSSDBG("ctrl '%s' registered\n", ctrl->name); ++ } ++ } ++} ++EXPORT_SYMBOL(omap_dss_register_ctrl); ++ ++void omap_dss_register_panel(struct omap_panel *panel) ++{ ++ struct omap_display *display; ++ ++ list_for_each_entry(display, &display_list, list) { ++ if (display->hw_config.panel_name && ++ strcmp(display->hw_config.panel_name, panel->name) == 0) { ++ display->panel = panel; ++ DSSDBG("panel '%s' registered\n", panel->name); ++ } ++ } ++} ++EXPORT_SYMBOL(omap_dss_register_panel); ++ ++void omap_dss_unregister_ctrl(struct omap_ctrl *ctrl) ++{ ++ struct omap_display *display; ++ ++ list_for_each_entry(display, &display_list, list) { ++ if (display->hw_config.ctrl_name && ++ strcmp(display->hw_config.ctrl_name, ctrl->name) == 0) ++ display->ctrl = NULL; ++ } ++} ++EXPORT_SYMBOL(omap_dss_unregister_ctrl); ++ ++void omap_dss_unregister_panel(struct omap_panel *panel) ++{ ++ struct omap_display *display; ++ ++ list_for_each_entry(display, &display_list, list) { ++ if (display->hw_config.panel_name && ++ strcmp(display->hw_config.panel_name, panel->name) == 0) ++ display->panel = NULL; ++ } ++} ++EXPORT_SYMBOL(omap_dss_unregister_panel); +diff --git a/drivers/video/omap2/dss/dpi.c b/drivers/video/omap2/dss/dpi.c +new file mode 100644 +index 0000000..71fffca +--- /dev/null ++++ b/drivers/video/omap2/dss/dpi.c +@@ -0,0 +1,393 @@ ++/* ++ * linux/drivers/video/omap2/dss/dpi.c ++ * ++ * Copyright (C) 2009 Nokia Corporation ++ * Author: Tomi Valkeinen <tomi.valkeinen@nokia.com> ++ * ++ * Some code and ideas taken from drivers/video/omap/ driver ++ * by Imre Deak. ++ * ++ * This program is free software; you can redistribute it and/or modify it ++ * under the terms of the GNU General Public License version 2 as published by ++ * the Free Software Foundation. ++ * ++ * This program is distributed in the hope that it will be useful, but WITHOUT ++ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or ++ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for ++ * more details. ++ * ++ * You should have received a copy of the GNU General Public License along with ++ * this program. If not, see <http://www.gnu.org/licenses/>. ++ */ ++ ++#include <linux/kernel.h> ++#include <linux/clk.h> ++#include <linux/delay.h> ++#include <linux/errno.h> ++ ++#include <mach/board.h> ++#include <mach/display.h> ++#include <mach/cpu.h> ++ ++#include "dss.h" ++ ++static struct { ++ int update_enabled; ++} dpi; ++ ++#ifdef CONFIG_OMAP2_DSS_USE_DSI_PLL ++static int dpi_set_dsi_clk(bool is_tft, unsigned long pck_req, ++ unsigned long *fck, int *lck_div, int *pck_div) ++{ ++ struct dsi_clock_info cinfo; ++ int r; ++ ++ r = dsi_pll_calc_pck(is_tft, pck_req, &cinfo); ++ if (r) ++ return r; ++ ++ r = dsi_pll_program(&cinfo); ++ if (r) ++ return r; ++ ++ dss_select_clk_source(0, 1); ++ ++ dispc_set_lcd_divisor(cinfo.lck_div, cinfo.pck_div); ++ ++ *fck = cinfo.dsi1_pll_fclk; ++ *lck_div = cinfo.lck_div; ++ *pck_div = cinfo.pck_div; ++ ++ return 0; ++} ++#else ++static int dpi_set_dispc_clk(bool is_tft, unsigned long pck_req, ++ unsigned long *fck, int *lck_div, int *pck_div) ++{ ++ struct dispc_clock_info cinfo; ++ int r; ++ ++ r = dispc_calc_clock_div(is_tft, pck_req, &cinfo); ++ if (r) ++ return r; ++ ++ r = dispc_set_clock_div(&cinfo); ++ if (r) ++ return r; ++ ++ *fck = cinfo.fck; ++ *lck_div = cinfo.lck_div; ++ *pck_div = cinfo.pck_div; ++ ++ return 0; ++} ++#endif ++ ++static int dpi_set_mode(struct omap_display *display) ++{ ++ struct omap_panel *panel = display->panel; ++ int lck_div, pck_div; ++ unsigned long fck; ++ unsigned long pck; ++ bool is_tft; ++ int r = 0; ++ ++ dss_clk_enable(DSS_CLK_ICK | DSS_CLK_FCK1); ++ ++ dispc_set_pol_freq(panel); ++ ++ is_tft = (display->panel->config & OMAP_DSS_LCD_TFT) != 0; ++ ++#ifdef CONFIG_OMAP2_DSS_USE_DSI_PLL ++ r = dpi_set_dsi_clk(is_tft, panel->timings.pixel_clock * 1000, ++ &fck, &lck_div, &pck_div); ++#else ++ r = dpi_set_dispc_clk(is_tft, panel->timings.pixel_clock * 1000, ++ &fck, &lck_div, &pck_div); ++#endif ++ if (r) ++ goto err0; ++ ++ pck = fck / lck_div / pck_div / 1000; ++ ++ if (pck != panel->timings.pixel_clock) { ++ DSSWARN("Could not find exact pixel clock. " ++ "Requested %d kHz, got %lu kHz\n", ++ panel->timings.pixel_clock, pck); ++ ++ panel->timings.pixel_clock = pck; ++ } ++ ++ dispc_set_lcd_timings(&panel->timings); ++ ++err0: ++ dss_clk_disable(DSS_CLK_ICK | DSS_CLK_FCK1); ++ return r; ++} ++ ++static int dpi_basic_init(struct omap_display *display) ++{ ++ bool is_tft; ++ ++ is_tft = (display->panel->config & OMAP_DSS_LCD_TFT) != 0; ++ ++ dispc_set_parallel_interface_mode(OMAP_DSS_PARALLELMODE_BYPASS); ++ dispc_set_lcd_display_type(is_tft ? OMAP_DSS_LCD_DISPLAY_TFT : ++ OMAP_DSS_LCD_DISPLAY_STN); ++ dispc_set_tft_data_lines(display->hw_config.u.dpi.data_lines); ++ ++ return 0; ++} ++ ++static int dpi_display_enable(struct omap_display *display) ++{ ++ struct omap_panel *panel = display->panel; ++ int r; ++ ++ if (display->state != OMAP_DSS_DISPLAY_DISABLED) { ++ DSSERR("display already enabled\n"); ++ return -EINVAL; ++ } ++ ++ dss_clk_enable(DSS_CLK_ICK | DSS_CLK_FCK1); ++ ++ r = dpi_basic_init(display); ++ if (r) ++ goto err0; ++ ++#ifdef CONFIG_OMAP2_DSS_USE_DSI_PLL ++ dss_clk_enable(DSS_CLK_FCK2); ++ r = dsi_pll_init(0, 1); ++ if (r) ++ goto err1; ++#endif ++ r = dpi_set_mode(display); ++ if (r) ++ goto err2; ++ ++ mdelay(2); ++ ++ dispc_enable_lcd_out(1); ++ ++ r = panel->enable(display); ++ if (r) ++ goto err3; ++ ++ display->state = OMAP_DSS_DISPLAY_ACTIVE; ++ ++ return 0; ++ ++err3: ++ dispc_enable_lcd_out(0); ++err2: ++#ifdef CONFIG_OMAP2_DSS_USE_DSI_PLL ++ dsi_pll_uninit(); ++err1: ++ dss_clk_disable(DSS_CLK_FCK2); ++#endif ++err0: ++ dss_clk_disable(DSS_CLK_ICK | DSS_CLK_FCK1); ++ return r; ++} ++ ++static int dpi_display_resume(struct omap_display *display); ++ ++static void dpi_display_disable(struct omap_display *display) ++{ ++ if (display->state == OMAP_DSS_DISPLAY_DISABLED) ++ return; ++ ++ if (display->state == OMAP_DSS_DISPLAY_SUSPENDED) ++ dpi_display_resume(display); ++ ++ display->panel->disable(display); ++ ++ dispc_enable_lcd_out(0); ++ ++#ifdef CONFIG_OMAP2_DSS_USE_DSI_PLL ++ dss_select_clk_source(0, 0); ++ dsi_pll_uninit(); ++ dss_clk_disable(DSS_CLK_FCK2); ++#endif ++ ++ dss_clk_disable(DSS_CLK_ICK | DSS_CLK_FCK1); ++ ++ display->state = OMAP_DSS_DISPLAY_DISABLED; ++} ++ ++static int dpi_display_suspend(struct omap_display *display) ++{ ++ if (display->state != OMAP_DSS_DISPLAY_ACTIVE) ++ return -EINVAL; ++ ++ DSSDBG("dpi_display_suspend\n"); ++ ++ if (display->panel->suspend) ++ display->panel->suspend(display); ++ ++ dispc_enable_lcd_out(0); ++ ++ dss_clk_disable(DSS_CLK_ICK | DSS_CLK_FCK1); ++ ++ display->state = OMAP_DSS_DISPLAY_SUSPENDED; ++ ++ return 0; ++} ++ ++static int dpi_display_resume(struct omap_display *display) ++{ ++ if (display->state != OMAP_DSS_DISPLAY_SUSPENDED) ++ return -EINVAL; ++ ++ DSSDBG("dpi_display_resume\n"); ++ ++ dss_clk_enable(DSS_CLK_ICK | DSS_CLK_FCK1); ++ ++ dispc_enable_lcd_out(1); ++ ++ if (display->panel->resume) ++ display->panel->resume(display); ++ ++ display->state = OMAP_DSS_DISPLAY_ACTIVE; ++ ++ return 0; ++} ++ ++static void dpi_set_timings(struct omap_display *display, ++ struct omap_video_timings *timings) ++{ ++ DSSDBG("dpi_set_timings\n"); ++ display->panel->timings = *timings; ++ if (display->state == OMAP_DSS_DISPLAY_ACTIVE) { ++ dpi_set_mode(display); ++ dispc_go(OMAP_DSS_CHANNEL_LCD); ++ } ++} ++ ++static int dpi_check_timings(struct omap_display *display, ++ struct omap_video_timings *timings) ++{ ++ bool is_tft; ++ int r; ++ int lck_div, pck_div; ++ unsigned long fck; ++ unsigned long pck; ++ ++ if (cpu_is_omap24xx() || omap_rev() < OMAP3430_REV_ES3_0) { ++ if (timings->hsw < 1 || timings->hsw > 64 || ++ timings->hfp < 1 || timings->hfp > 256 || ++ timings->hbp < 1 || timings->hbp > 256) { ++ return -EINVAL; ++ } ++ ++ if (timings->vsw < 1 || timings->vsw > 64 || ++ timings->vfp > 255 || timings->vbp > 255) { ++ return -EINVAL; ++ } ++ } else { ++ if (timings->hsw < 1 || timings->hsw > 256 || ++ timings->hfp < 1 || timings->hfp > 4096 || ++ timings->hbp < 1 || timings->hbp > 4096) { ++ return -EINVAL; ++ } ++ ++ if (timings->vsw < 1 || timings->vsw > 64 || ++ timings->vfp > 4095 || timings->vbp > 4095) { ++ return -EINVAL; ++ } ++ } ++ ++ if (timings->pixel_clock == 0) ++ return -EINVAL; ++ ++ is_tft = (display->panel->config & OMAP_DSS_LCD_TFT) != 0; ++ ++#ifdef CONFIG_OMAP2_DSS_USE_DSI_PLL ++ { ++ struct dsi_clock_info cinfo; ++ r = dsi_pll_calc_pck(is_tft, timings->pixel_clock * 1000, ++ &cinfo); ++ ++ if (r) ++ return r; ++ ++ fck = cinfo.dsi1_pll_fclk; ++ lck_div = cinfo.lck_div; ++ pck_div = cinfo.pck_div; ++ } ++#else ++ { ++ struct dispc_clock_info cinfo; ++ r = dispc_calc_clock_div(is_tft, timings->pixel_clock * 1000, ++ &cinfo); ++ ++ if (r) ++ return r; ++ ++ fck = cinfo.fck; ++ lck_div = cinfo.lck_div; ++ pck_div = cinfo.pck_div; ++ } ++#endif ++ ++ pck = fck / lck_div / pck_div / 1000; ++ ++ timings->pixel_clock = pck; ++ ++ return 0; ++} ++ ++static void dpi_get_timings(struct omap_display *display, ++ struct omap_video_timings *timings) ++{ ++ *timings = display->panel->timings; ++} ++ ++static int dpi_display_set_update_mode(struct omap_display *display, ++ enum omap_dss_update_mode mode) ++{ ++ if (mode == OMAP_DSS_UPDATE_MANUAL) ++ return -EINVAL; ++ ++ if (mode == OMAP_DSS_UPDATE_DISABLED) { ++ dispc_enable_lcd_out(0); ++ dpi.update_enabled = 0; ++ } else { ++ dispc_enable_lcd_out(1); ++ dpi.update_enabled = 1; ++ } ++ ++ return 0; ++} ++ ++static enum omap_dss_update_mode dpi_display_get_update_mode( ++ struct omap_display *display) ++{ ++ return dpi.update_enabled ? OMAP_DSS_UPDATE_AUTO : ++ OMAP_DSS_UPDATE_DISABLED; ++} ++ ++void dpi_init_display(struct omap_display *display) ++{ ++ DSSDBG("DPI init_display\n"); ++ ++ display->enable = dpi_display_enable; ++ display->disable = dpi_display_disable; ++ display->suspend = dpi_display_suspend; ++ display->resume = dpi_display_resume; ++ display->set_timings = dpi_set_timings; ++ display->check_timings = dpi_check_timings; ++ display->get_timings = dpi_get_timings; ++ display->set_update_mode = dpi_display_set_update_mode; ++ display->get_update_mode = dpi_display_get_update_mode; ++} ++ ++int dpi_init(void) ++{ ++ return 0; ++} ++ ++void dpi_exit(void) ++{ ++} ++ +diff --git a/drivers/video/omap2/dss/dsi.c b/drivers/video/omap2/dss/dsi.c +new file mode 100644 +index 0000000..4442931 +--- /dev/null ++++ b/drivers/video/omap2/dss/dsi.c +@@ -0,0 +1,3752 @@ ++/* ++ * linux/drivers/video/omap2/dss/dsi.c ++ * ++ * Copyright (C) 2009 Nokia Corporation ++ * Author: Tomi Valkeinen <tomi.valkeinen@nokia.com> ++ * ++ * This program is free software; you can redistribute it and/or modify it ++ * under the terms of the GNU General Public License version 2 as published by ++ * the Free Software Foundation. ++ * ++ * This program is distributed in the hope that it will be useful, but WITHOUT ++ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or ++ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for ++ * more details. ++ * ++ * You should have received a copy of the GNU General Public License along with ++ * this program. If not, see <http://www.gnu.org/licenses/>. ++ */ ++ ++#define DSS_SUBSYS_NAME "DSI" ++ ++#include <linux/kernel.h> ++#include <linux/io.h> ++#include <linux/clk.h> ++#include <linux/device.h> ++#include <linux/err.h> ++#include <linux/interrupt.h> ++#include <linux/delay.h> ++#include <linux/workqueue.h> ++#include <linux/mutex.h> ++#include <linux/seq_file.h> ++#include <linux/kfifo.h> ++ ++#include <mach/board.h> ++#include <mach/display.h> ++#include <mach/clock.h> ++ ++#include "dss.h" ++ ++/*#define VERBOSE_IRQ*/ ++ ++#define DSI_BASE 0x4804FC00 ++ ++struct dsi_reg { u16 idx; }; ++ ++#define DSI_REG(idx) ((const struct dsi_reg) { idx }) ++ ++#define DSI_SZ_REGS SZ_1K ++/* DSI Protocol Engine */ ++ ++#define DSI_REVISION DSI_REG(0x0000) ++#define DSI_SYSCONFIG DSI_REG(0x0010) ++#define DSI_SYSSTATUS DSI_REG(0x0014) ++#define DSI_IRQSTATUS DSI_REG(0x0018) ++#define DSI_IRQENABLE DSI_REG(0x001C) ++#define DSI_CTRL DSI_REG(0x0040) ++#define DSI_COMPLEXIO_CFG1 DSI_REG(0x0048) ++#define DSI_COMPLEXIO_IRQ_STATUS DSI_REG(0x004C) ++#define DSI_COMPLEXIO_IRQ_ENABLE DSI_REG(0x0050) ++#define DSI_CLK_CTRL DSI_REG(0x0054) ++#define DSI_TIMING1 DSI_REG(0x0058) ++#define DSI_TIMING2 DSI_REG(0x005C) ++#define DSI_VM_TIMING1 DSI_REG(0x0060) ++#define DSI_VM_TIMING2 DSI_REG(0x0064) ++#define DSI_VM_TIMING3 DSI_REG(0x0068) ++#define DSI_CLK_TIMING DSI_REG(0x006C) ++#define DSI_TX_FIFO_VC_SIZE DSI_REG(0x0070) ++#define DSI_RX_FIFO_VC_SIZE DSI_REG(0x0074) ++#define DSI_COMPLEXIO_CFG2 DSI_REG(0x0078) ++#define DSI_RX_FIFO_VC_FULLNESS DSI_REG(0x007C) ++#define DSI_VM_TIMING4 DSI_REG(0x0080) ++#define DSI_TX_FIFO_VC_EMPTINESS DSI_REG(0x0084) ++#define DSI_VM_TIMING5 DSI_REG(0x0088) ++#define DSI_VM_TIMING6 DSI_REG(0x008C) ++#define DSI_VM_TIMING7 DSI_REG(0x0090) ++#define DSI_STOPCLK_TIMING DSI_REG(0x0094) ++#define DSI_VC_CTRL(n) DSI_REG(0x0100 + (n * 0x20)) ++#define DSI_VC_TE(n) DSI_REG(0x0104 + (n * 0x20)) ++#define DSI_VC_LONG_PACKET_HEADER(n) DSI_REG(0x0108 + (n * 0x20)) ++#define DSI_VC_LONG_PACKET_PAYLOAD(n) DSI_REG(0x010C + (n * 0x20)) ++#define DSI_VC_SHORT_PACKET_HEADER(n) DSI_REG(0x0110 + (n * 0x20)) ++#define DSI_VC_IRQSTATUS(n) DSI_REG(0x0118 + (n * 0x20)) ++#define DSI_VC_IRQENABLE(n) DSI_REG(0x011C + (n * 0x20)) ++ ++/* DSIPHY_SCP */ ++ ++#define DSI_DSIPHY_CFG0 DSI_REG(0x200 + 0x0000) ++#define DSI_DSIPHY_CFG1 DSI_REG(0x200 + 0x0004) ++#define DSI_DSIPHY_CFG2 DSI_REG(0x200 + 0x0008) ++#define DSI_DSIPHY_CFG5 DSI_REG(0x200 + 0x0014) ++ ++/* DSI_PLL_CTRL_SCP */ ++ ++#define DSI_PLL_CONTROL DSI_REG(0x300 + 0x0000) ++#define DSI_PLL_STATUS DSI_REG(0x300 + 0x0004) ++#define DSI_PLL_GO DSI_REG(0x300 + 0x0008) ++#define DSI_PLL_CONFIGURATION1 DSI_REG(0x300 + 0x000C) ++#define DSI_PLL_CONFIGURATION2 DSI_REG(0x300 + 0x0010) ++ ++#define REG_GET(idx, start, end) \ ++ FLD_GET(dsi_read_reg(idx), start, end) ++ ++#define REG_FLD_MOD(idx, val, start, end) \ ++ dsi_write_reg(idx, FLD_MOD(dsi_read_reg(idx), val, start, end)) ++ ++/* Global interrupts */ ++#define DSI_IRQ_VC0 (1 << 0) ++#define DSI_IRQ_VC1 (1 << 1) ++#define DSI_IRQ_VC2 (1 << 2) ++#define DSI_IRQ_VC3 (1 << 3) ++#define DSI_IRQ_WAKEUP (1 << 4) ++#define DSI_IRQ_RESYNC (1 << 5) ++#define DSI_IRQ_PLL_LOCK (1 << 7) ++#define DSI_IRQ_PLL_UNLOCK (1 << 8) ++#define DSI_IRQ_PLL_RECALL (1 << 9) ++#define DSI_IRQ_COMPLEXIO_ERR (1 << 10) ++#define DSI_IRQ_HS_TX_TIMEOUT (1 << 14) ++#define DSI_IRQ_LP_RX_TIMEOUT (1 << 15) ++#define DSI_IRQ_TE_TRIGGER (1 << 16) ++#define DSI_IRQ_ACK_TRIGGER (1 << 17) ++#define DSI_IRQ_SYNC_LOST (1 << 18) ++#define DSI_IRQ_LDO_POWER_GOOD (1 << 19) ++#define DSI_IRQ_TA_TIMEOUT (1 << 20) ++#define DSI_IRQ_ERROR_MASK \ ++ (DSI_IRQ_HS_TX_TIMEOUT | DSI_IRQ_LP_RX_TIMEOUT | DSI_IRQ_SYNC_LOST | \ ++ DSI_IRQ_TA_TIMEOUT) ++#define DSI_IRQ_CHANNEL_MASK 0xf ++ ++/* Virtual channel interrupts */ ++#define DSI_VC_IRQ_CS (1 << 0) ++#define DSI_VC_IRQ_ECC_CORR (1 << 1) ++#define DSI_VC_IRQ_PACKET_SENT (1 << 2) ++#define DSI_VC_IRQ_FIFO_TX_OVF (1 << 3) ++#define DSI_VC_IRQ_FIFO_RX_OVF (1 << 4) ++#define DSI_VC_IRQ_BTA (1 << 5) ++#define DSI_VC_IRQ_ECC_NO_CORR (1 << 6) ++#define DSI_VC_IRQ_FIFO_TX_UDF (1 << 7) ++#define DSI_VC_IRQ_PP_BUSY_CHANGE (1 << 8) ++#define DSI_VC_IRQ_ERROR_MASK \ ++ (DSI_VC_IRQ_CS | DSI_VC_IRQ_ECC_CORR | DSI_VC_IRQ_FIFO_TX_OVF | \ ++ DSI_VC_IRQ_FIFO_RX_OVF | DSI_VC_IRQ_ECC_NO_CORR | \ ++ DSI_VC_IRQ_FIFO_TX_UDF) ++ ++/* ComplexIO interrupts */ ++#define DSI_CIO_IRQ_ERRSYNCESC1 (1 << 0) ++#define DSI_CIO_IRQ_ERRSYNCESC2 (1 << 1) ++#define DSI_CIO_IRQ_ERRSYNCESC3 (1 << 2) ++#define DSI_CIO_IRQ_ERRESC1 (1 << 5) ++#define DSI_CIO_IRQ_ERRESC2 (1 << 6) ++#define DSI_CIO_IRQ_ERRESC3 (1 << 7) ++#define DSI_CIO_IRQ_ERRCONTROL1 (1 << 10) ++#define DSI_CIO_IRQ_ERRCONTROL2 (1 << 11) ++#define DSI_CIO_IRQ_ERRCONTROL3 (1 << 12) ++#define DSI_CIO_IRQ_STATEULPS1 (1 << 15) ++#define DSI_CIO_IRQ_STATEULPS2 (1 << 16) ++#define DSI_CIO_IRQ_STATEULPS3 (1 << 17) ++#define DSI_CIO_IRQ_ERRCONTENTIONLP0_1 (1 << 20) ++#define DSI_CIO_IRQ_ERRCONTENTIONLP1_1 (1 << 21) ++#define DSI_CIO_IRQ_ERRCONTENTIONLP0_2 (1 << 22) ++#define DSI_CIO_IRQ_ERRCONTENTIONLP1_2 (1 << 23) ++#define DSI_CIO_IRQ_ERRCONTENTIONLP0_3 (1 << 24) ++#define DSI_CIO_IRQ_ERRCONTENTIONLP1_3 (1 << 25) ++#define DSI_CIO_IRQ_ULPSACTIVENOT_ALL0 (1 << 30) ++#define DSI_CIO_IRQ_ULPSACTIVENOT_ALL1 (1 << 31) ++ ++#define DSI_DT_DCS_SHORT_WRITE_0 0x05 ++#define DSI_DT_DCS_SHORT_WRITE_1 0x15 ++#define DSI_DT_DCS_READ 0x06 ++#define DSI_DT_SET_MAX_RET_PKG_SIZE 0x37 ++#define DSI_DT_NULL_PACKET 0x09 ++#define DSI_DT_DCS_LONG_WRITE 0x39 ++ ++#define DSI_DT_RX_ACK_WITH_ERR 0x02 ++#define DSI_DT_RX_DCS_LONG_READ 0x1c ++#define DSI_DT_RX_SHORT_READ_1 0x21 ++#define DSI_DT_RX_SHORT_READ_2 0x22 ++ ++#define FINT_MAX 2100000 ++#define FINT_MIN 750000 ++#define REGN_MAX (1 << 7) ++#define REGM_MAX ((1 << 11) - 1) ++#define REGM3_MAX (1 << 4) ++#define REGM4_MAX (1 << 4) ++ ++enum fifo_size { ++ DSI_FIFO_SIZE_0 = 0, ++ DSI_FIFO_SIZE_32 = 1, ++ DSI_FIFO_SIZE_64 = 2, ++ DSI_FIFO_SIZE_96 = 3, ++ DSI_FIFO_SIZE_128 = 4, ++}; ++ ++#define DSI_CMD_FIFO_LEN 16 ++ ++struct dsi_cmd_update { ++ int bytespp; ++ u16 x; ++ u16 y; ++ u16 w; ++ u16 h; ++}; ++ ++struct dsi_cmd_mem_read { ++ void *buf; ++ size_t size; ++ u16 x; ++ u16 y; ++ u16 w; ++ u16 h; ++ size_t *ret_size; ++ struct completion *completion; ++}; ++ ++struct dsi_cmd_test { ++ int test_num; ++ int *result; ++ struct completion *completion; ++}; ++ ++enum dsi_cmd { ++ DSI_CMD_UPDATE, ++ DSI_CMD_AUTOUPDATE, ++ DSI_CMD_SYNC, ++ DSI_CMD_MEM_READ, ++ DSI_CMD_TEST, ++ DSI_CMD_SET_TE, ++ DSI_CMD_SET_UPDATE_MODE, ++ DSI_CMD_SET_ROTATE, ++ DSI_CMD_SET_MIRROR, ++}; ++ ++struct dsi_cmd_item { ++ struct omap_display *display; ++ ++ enum dsi_cmd cmd; ++ ++ union { ++ struct dsi_cmd_update r; ++ struct completion *sync; ++ struct dsi_cmd_mem_read mem_read; ++ struct dsi_cmd_test test; ++ int te; ++ enum omap_dss_update_mode update_mode; ++ int rotate; ++ int mirror; ++ } u; ++}; ++ ++static struct ++{ ++ void __iomem *base; ++ ++ unsigned long dsi1_pll_fclk; /* Hz */ ++ unsigned long dsi2_pll_fclk; /* Hz */ ++ unsigned long dsiphy; /* Hz */ ++ unsigned long ddr_clk; /* Hz */ ++ ++ struct { ++ struct omap_display *display; ++ enum fifo_size fifo_size; ++ int dest_per; /* destination peripheral 0-3 */ ++ } vc[4]; ++ ++ struct mutex lock; ++ ++ unsigned pll_locked; ++ ++ struct completion bta_completion; ++ ++ struct work_struct framedone_work; ++ struct work_struct process_work; ++ struct workqueue_struct *workqueue; ++ ++ enum omap_dss_update_mode user_update_mode; ++ enum omap_dss_update_mode target_update_mode; ++ enum omap_dss_update_mode update_mode; ++ int use_te; ++ int framedone_scheduled; /* helps to catch strange framedone bugs */ ++ ++ unsigned long cache_req_pck; ++ unsigned long cache_clk_freq; ++ struct dsi_clock_info cache_cinfo; ++ ++ struct kfifo *cmd_fifo; ++ spinlock_t cmd_lock; ++ struct completion cmd_done; ++ atomic_t cmd_fifo_full; ++ atomic_t cmd_pending; ++ ++ bool autoupdate_setup; ++ ++#ifdef DEBUG ++ ktime_t perf_setup_time; ++ ktime_t perf_start_time; ++ int perf_measure_frames; ++ ++ struct { ++ int x, y, w, h; ++ int bytespp; ++ } update_region; ++ ++#endif ++ int debug_process; ++ int debug_read; ++ int debug_write; ++} dsi; ++ ++#ifdef DEBUG ++static unsigned int dsi_perf; ++module_param_named(dsi_perf, dsi_perf, bool, 0644); ++#endif ++ ++static void dsi_process_cmd_fifo(struct work_struct *work); ++static void dsi_push_update(struct omap_display *display, ++ int x, int y, int w, int h); ++static void dsi_push_autoupdate(struct omap_display *display); ++ ++static inline void dsi_write_reg(const struct dsi_reg idx, u32 val) ++{ ++ __raw_writel(val, dsi.base + idx.idx); ++} ++ ++static inline u32 dsi_read_reg(const struct dsi_reg idx) ++{ ++ return __raw_readl(dsi.base + idx.idx); ++} ++ ++ ++void dsi_save_context(void) ++{ ++} ++ ++void dsi_restore_context(void) ++{ ++} ++ ++static inline int wait_for_bit_change(const struct dsi_reg idx, int bitnum, ++ int value) ++{ ++ int t = 100000; ++ ++ while (REG_GET(idx, bitnum, bitnum) != value) { ++ if (--t == 0) ++ return !value; ++ } ++ ++ return value; ++} ++ ++#ifdef DEBUG ++static void perf_mark_setup(void) ++{ ++ dsi.perf_setup_time = ktime_get(); ++} ++ ++static void perf_mark_start(void) ++{ ++ dsi.perf_start_time = ktime_get(); ++} ++ ++static void perf_show(const char *name) ++{ ++ ktime_t t, setup_time, trans_time; ++ u32 total_bytes; ++ u32 setup_us, trans_us, total_us; ++ const int numframes = 100; ++ static u32 s_trans_us, s_min_us = 0xffffffff, s_max_us; ++ ++ if (!dsi_perf) ++ return; ++ ++ if (dsi.update_mode == OMAP_DSS_UPDATE_DISABLED) ++ return; ++ ++ t = ktime_get(); ++ ++ setup_time = ktime_sub(dsi.perf_start_time, dsi.perf_setup_time); ++ setup_us = (u32)ktime_to_us(setup_time); ++ if (setup_us == 0) ++ setup_us = 1; ++ ++ trans_time = ktime_sub(t, dsi.perf_start_time); ++ trans_us = (u32)ktime_to_us(trans_time); ++ if (trans_us == 0) ++ trans_us = 1; ++ ++ total_us = setup_us + trans_us; ++ ++ total_bytes = dsi.update_region.w * ++ dsi.update_region.h * ++ dsi.update_region.bytespp; ++ ++ if (dsi.update_mode == OMAP_DSS_UPDATE_AUTO) { ++ dsi.perf_measure_frames++; ++ ++ if (trans_us < s_min_us) ++ s_min_us = trans_us; ++ ++ if (trans_us > s_max_us) ++ s_max_us = trans_us; ++ ++ s_trans_us += trans_us; ++ ++ if (dsi.perf_measure_frames < numframes) ++ return; ++ ++ DSSINFO("%s update: %d frames in %u us " ++ "(min/max/avg %u/%u/%u), %u fps\n", ++ name, numframes, ++ s_trans_us, ++ s_min_us, ++ s_max_us, ++ s_trans_us / numframes, ++ 1000*1000 / (s_trans_us / numframes)); ++ ++ dsi.perf_measure_frames = 0; ++ s_trans_us = 0; ++ s_min_us = 0xffffffff; ++ s_max_us = 0; ++ } else { ++ DSSINFO("%s update %u us + %u us = %u us (%uHz), %u bytes, " ++ "%u kbytes/sec\n", ++ name, ++ setup_us, ++ trans_us, ++ total_us, ++ 1000*1000 / total_us, ++ total_bytes, ++ total_bytes * 1000 / total_us); ++ } ++} ++#else ++#define perf_mark_setup() ++#define perf_mark_start() ++#define perf_show(x) ++#endif ++ ++static void print_irq_status(u32 status) ++{ ++#ifndef VERBOSE_IRQ ++ if ((status & ~DSI_IRQ_CHANNEL_MASK) == 0) ++ return; ++#endif ++ printk(KERN_DEBUG "DSI IRQ: 0x%x: ", status); ++ ++#define PIS(x) \ ++ if (status & DSI_IRQ_##x) \ ++ printk(#x " "); ++#ifdef VERBOSE_IRQ ++ PIS(VC0); ++ PIS(VC1); ++ PIS(VC2); ++ PIS(VC3); ++#endif ++ PIS(WAKEUP); ++ PIS(RESYNC); ++ PIS(PLL_LOCK); ++ PIS(PLL_UNLOCK); ++ PIS(PLL_RECALL); ++ PIS(COMPLEXIO_ERR); ++ PIS(HS_TX_TIMEOUT); ++ PIS(LP_RX_TIMEOUT); ++ PIS(TE_TRIGGER); ++ PIS(ACK_TRIGGER); ++ PIS(SYNC_LOST); ++ PIS(LDO_POWER_GOOD); ++ PIS(TA_TIMEOUT); ++#undef PIS ++ ++ printk("\n"); ++} ++ ++static void print_irq_status_vc(int channel, u32 status) ++{ ++#ifndef VERBOSE_IRQ ++ if ((status & ~DSI_VC_IRQ_PACKET_SENT) == 0) ++ return; ++#endif ++ printk(KERN_DEBUG "DSI VC(%d) IRQ 0x%x: ", channel, status); ++ ++#define PIS(x) \ ++ if (status & DSI_VC_IRQ_##x) \ ++ printk(#x " "); ++ PIS(CS); ++ PIS(ECC_CORR); ++#ifdef VERBOSE_IRQ ++ PIS(PACKET_SENT); ++#endif ++ PIS(FIFO_TX_OVF); ++ PIS(FIFO_RX_OVF); ++ PIS(BTA); ++ PIS(ECC_NO_CORR); ++ PIS(FIFO_TX_UDF); ++ PIS(PP_BUSY_CHANGE); ++#undef PIS ++ printk("\n"); ++} ++ ++static void print_irq_status_cio(u32 status) ++{ ++ printk(KERN_DEBUG "DSI CIO IRQ 0x%x: ", status); ++ ++#define PIS(x) \ ++ if (status & DSI_CIO_IRQ_##x) \ ++ printk(#x " "); ++ PIS(ERRSYNCESC1); ++ PIS(ERRSYNCESC2); ++ PIS(ERRSYNCESC3); ++ PIS(ERRESC1); ++ PIS(ERRESC2); ++ PIS(ERRESC3); ++ PIS(ERRCONTROL1); ++ PIS(ERRCONTROL2); ++ PIS(ERRCONTROL3); ++ PIS(STATEULPS1); ++ PIS(STATEULPS2); ++ PIS(STATEULPS3); ++ PIS(ERRCONTENTIONLP0_1); ++ PIS(ERRCONTENTIONLP1_1); ++ PIS(ERRCONTENTIONLP0_2); ++ PIS(ERRCONTENTIONLP1_2); ++ PIS(ERRCONTENTIONLP0_3); ++ PIS(ERRCONTENTIONLP1_3); ++ PIS(ULPSACTIVENOT_ALL0); ++ PIS(ULPSACTIVENOT_ALL1); ++#undef PIS ++ ++ printk("\n"); ++} ++ ++static int debug_irq; ++ ++/* called from dss */ ++void dsi_irq_handler(void) ++{ ++ u32 irqstatus, vcstatus, ciostatus; ++ int i; ++ ++ irqstatus = dsi_read_reg(DSI_IRQSTATUS); ++ ++ if (irqstatus & DSI_IRQ_ERROR_MASK) { ++ DSSERR("DSI error, irqstatus %x\n", irqstatus); ++ print_irq_status(irqstatus); ++ } else if (debug_irq) { ++ print_irq_status(irqstatus); ++ } ++ ++ for (i = 0; i < 4; ++i) { ++ if ((irqstatus & (1<<i)) == 0) ++ continue; ++ ++ vcstatus = dsi_read_reg(DSI_VC_IRQSTATUS(i)); ++ ++ if (vcstatus & DSI_VC_IRQ_BTA) ++ complete(&dsi.bta_completion); ++ ++ if (vcstatus & DSI_VC_IRQ_ERROR_MASK) { ++ DSSERR("DSI VC(%d) error, vc irqstatus %x\n", ++ i, vcstatus); ++ print_irq_status_vc(i, vcstatus); ++ } else if (debug_irq) { ++ print_irq_status_vc(i, vcstatus); ++ } ++ ++ dsi_write_reg(DSI_VC_IRQSTATUS(i), vcstatus); ++ } ++ ++ if (irqstatus & DSI_IRQ_COMPLEXIO_ERR) { ++ ciostatus = dsi_read_reg(DSI_COMPLEXIO_IRQ_STATUS); ++ ++ dsi_write_reg(DSI_COMPLEXIO_IRQ_STATUS, ciostatus); ++ ++ DSSERR("DSI CIO error, cio irqstatus %x\n", ciostatus); ++ print_irq_status_cio(ciostatus); ++ } ++ ++ dsi_write_reg(DSI_IRQSTATUS, irqstatus & ~DSI_IRQ_CHANNEL_MASK); ++} ++ ++ ++static void _dsi_initialize_irq(void) ++{ ++ u32 l; ++ int i; ++ ++ /* disable all interrupts */ ++ dsi_write_reg(DSI_IRQENABLE, 0); ++ for (i = 0; i < 4; ++i) ++ dsi_write_reg(DSI_VC_IRQENABLE(i), 0); ++ dsi_write_reg(DSI_COMPLEXIO_IRQ_ENABLE, 0); ++ ++ /* clear interrupt status */ ++ l = dsi_read_reg(DSI_IRQSTATUS); ++ dsi_write_reg(DSI_IRQSTATUS, l & ~DSI_IRQ_CHANNEL_MASK); ++ ++ for (i = 0; i < 4; ++i) { ++ l = dsi_read_reg(DSI_VC_IRQSTATUS(i)); ++ dsi_write_reg(DSI_VC_IRQSTATUS(i), l); ++ } ++ ++ l = dsi_read_reg(DSI_COMPLEXIO_IRQ_STATUS); ++ dsi_write_reg(DSI_COMPLEXIO_IRQ_STATUS, l); ++ ++ /* enable error irqs */ ++ l = DSI_IRQ_ERROR_MASK; ++ dsi_write_reg(DSI_IRQENABLE, l); ++ ++ l = DSI_VC_IRQ_ERROR_MASK; ++ for (i = 0; i < 4; ++i) ++ dsi_write_reg(DSI_VC_IRQENABLE(i), l); ++ ++ /* XXX zonda responds incorrectly, causing control error: ++ Exit from LP-ESC mode to LP11 uses wrong transition states on the ++ data lines LP0 and LN0. */ ++ dsi_write_reg(DSI_COMPLEXIO_IRQ_ENABLE, ++ -1 & (~DSI_CIO_IRQ_ERRCONTROL2)); ++} ++ ++static void dsi_vc_enable_bta_irq(int channel) ++{ ++ u32 l; ++ ++ l = dsi_read_reg(DSI_VC_IRQENABLE(channel)); ++ l |= DSI_VC_IRQ_BTA; ++ dsi_write_reg(DSI_VC_IRQENABLE(channel), l); ++} ++ ++static void dsi_vc_disable_bta_irq(int channel) ++{ ++ u32 l; ++ ++ l = dsi_read_reg(DSI_VC_IRQENABLE(channel)); ++ l &= ~DSI_VC_IRQ_BTA; ++ dsi_write_reg(DSI_VC_IRQENABLE(channel), l); ++} ++ ++/* DSI func clock. this could also be DSI2_PLL_FCLK */ ++static inline void enable_clocks(bool enable) ++{ ++ if (enable) ++ dss_clk_enable(DSS_CLK_ICK | DSS_CLK_FCK1); ++ else ++ dss_clk_disable(DSS_CLK_ICK | DSS_CLK_FCK1); ++} ++ ++/* source clock for DSI PLL. this could also be PCLKFREE */ ++static inline void dsi_enable_pll_clock(bool enable) ++{ ++ if (enable) ++ dss_clk_enable(DSS_CLK_FCK2); ++ else ++ dss_clk_disable(DSS_CLK_FCK2); ++ ++ if (enable && dsi.pll_locked) { ++ if (wait_for_bit_change(DSI_PLL_STATUS, 1, 1) != 1) ++ DSSERR("cannot lock PLL when enabling clocks\n"); ++ } ++} ++ ++#ifdef DEBUG ++static void _dsi_print_reset_status(void) ++{ ++ u32 l; ++ ++ if (!dss_debug) ++ return; ++ ++ /* A dummy read using the SCP interface to any DSIPHY register is ++ * required after DSIPHY reset to complete the reset of the DSI complex ++ * I/O. */ ++ l = dsi_read_reg(DSI_DSIPHY_CFG5); ++ ++ printk(KERN_DEBUG "DSI resets: "); ++ ++ l = dsi_read_reg(DSI_PLL_STATUS); ++ printk("PLL (%d) ", FLD_GET(l, 0, 0)); ++ ++ l = dsi_read_reg(DSI_COMPLEXIO_CFG1); ++ printk("CIO (%d) ", FLD_GET(l, 29, 29)); ++ ++ l = dsi_read_reg(DSI_DSIPHY_CFG5); ++ printk("PHY (%x, %d, %d, %d)\n", ++ FLD_GET(l, 28, 26), ++ FLD_GET(l, 29, 29), ++ FLD_GET(l, 30, 30), ++ FLD_GET(l, 31, 31)); ++} ++#else ++#define _dsi_print_reset_status() ++#endif ++ ++static inline int dsi_if_enable(bool enable) ++{ ++ DSSDBG("dsi_if_enable(%d)\n", enable); ++ ++ enable = enable ? 1 : 0; ++ REG_FLD_MOD(DSI_CTRL, enable, 0, 0); /* IF_EN */ ++ ++ if (wait_for_bit_change(DSI_CTRL, 0, enable) != enable) { ++ DSSERR("Failed to set dsi_if_enable to %d\n", enable); ++ return -EIO; ++ } ++ ++ return 0; ++} ++ ++static unsigned long dsi_fclk_rate(void) ++{ ++ unsigned long r; ++ ++ if (dss_get_dsi_clk_source() == 0) { ++ /* DSI FCLK source is DSS1_ALWON_FCK, which is dss1_fck */ ++ r = dss_clk_get_rate(DSS_CLK_FCK1); ++ } else { ++ /* DSI FCLK source is DSI2_PLL_FCLK */ ++ r = dsi.dsi2_pll_fclk; ++ } ++ ++ return r; ++} ++ ++static int dsi_set_lp_clk_divisor(void) ++{ ++ int n; ++ unsigned long dsi_fclk; ++ unsigned long mhz; ++ ++ /* LP_CLK_DIVISOR, DSI fclk/n, should be 20MHz - 32kHz */ ++ ++ dsi_fclk = dsi_fclk_rate(); ++ ++ for (n = 1; n < (1 << 13) - 1; ++n) { ++ mhz = dsi_fclk / n; ++ if (mhz <= 20*1000*1000) ++ break; ++ } ++ ++ if (n == (1 << 13) - 1) { ++ DSSERR("Failed to find LP_CLK_DIVISOR\n"); ++ return -EINVAL; ++ } ++ ++ DSSDBG("LP_CLK_DIV %d, LP_CLK %ld\n", n, mhz); ++ ++ REG_FLD_MOD(DSI_CLK_CTRL, n, 12, 0); /* LP_CLK_DIVISOR */ ++ if (dsi_fclk > 30*1000*1000) ++ REG_FLD_MOD(DSI_CLK_CTRL, 1, 21, 21); /* LP_RX_SYNCHRO_ENABLE */ ++ ++ return 0; ++} ++ ++ ++enum dsi_pll_power_state { ++ DSI_PLL_POWER_OFF = 0x0, ++ DSI_PLL_POWER_ON_HSCLK = 0x1, ++ DSI_PLL_POWER_ON_ALL = 0x2, ++ DSI_PLL_POWER_ON_DIV = 0x3, ++}; ++ ++static int dsi_pll_power(enum dsi_pll_power_state state) ++{ ++ int t = 0; ++ ++ REG_FLD_MOD(DSI_CLK_CTRL, state, 31, 30); /* PLL_PWR_CMD */ ++ ++ /* PLL_PWR_STATUS */ ++ while (FLD_GET(dsi_read_reg(DSI_CLK_CTRL), 29, 28) != state) { ++ udelay(1); ++ if (t++ > 1000) { ++ DSSERR("Failed to set DSI PLL power mode to %d\n", ++ state); ++ return -ENODEV; ++ } ++ } ++ ++ return 0; ++} ++ ++int dsi_pll_calc_pck(bool is_tft, unsigned long req_pck, ++ struct dsi_clock_info *cinfo) ++{ ++ struct dsi_clock_info cur, best; ++ int min_fck_per_pck; ++ int match = 0; ++ ++ if (req_pck == dsi.cache_req_pck && ++ dsi.cache_cinfo.clkin == dss_clk_get_rate(DSS_CLK_FCK2)) { ++ DSSDBG("DSI clock info found from cache\n"); ++ *cinfo = dsi.cache_cinfo; ++ return 0; ++ } ++ ++ min_fck_per_pck = CONFIG_OMAP2_DSS_MIN_FCK_PER_PCK; ++ ++ if (min_fck_per_pck && ++ req_pck * min_fck_per_pck > DISPC_MAX_FCK) { ++ DSSERR("Requested pixel clock not possible with the current " ++ "OMAP2_DSS_MIN_FCK_PER_PCK setting. Turning " ++ "the constraint off.\n"); ++ min_fck_per_pck = 0; ++ } ++ ++ DSSDBG("dsi_pll_calc\n"); ++ ++retry: ++ memset(&best, 0, sizeof(best)); ++ ++ memset(&cur, 0, sizeof(cur)); ++ cur.clkin = dss_clk_get_rate(DSS_CLK_FCK2); ++ cur.use_dss2_fck = 1; ++ cur.highfreq = 0; ++ ++ /* no highfreq: 0.75MHz < Fint = clkin / regn < 2.1MHz */ ++ /* highfreq: 0.75MHz < Fint = clkin / (2*regn) < 2.1MHz */ ++ /* To reduce PLL lock time, keep Fint high (around 2 MHz) */ ++ for (cur.regn = 1; cur.regn < REGN_MAX; ++cur.regn) { ++ if (cur.highfreq == 0) ++ cur.fint = cur.clkin / cur.regn; ++ else ++ cur.fint = cur.clkin / (2 * cur.regn); ++ ++ if (cur.fint > FINT_MAX || cur.fint < FINT_MIN) ++ continue; ++ ++ /* DSIPHY(MHz) = (2 * regm / regn) * (clkin / (highfreq + 1)) */ ++ for (cur.regm = 1; cur.regm < REGM_MAX; ++cur.regm) { ++ unsigned long a, b; ++ ++ a = 2 * cur.regm * (cur.clkin/1000); ++ b = cur.regn * (cur.highfreq + 1); ++ cur.dsiphy = a / b * 1000; ++ ++ if (cur.dsiphy > 1800 * 1000 * 1000) ++ break; ++ ++ /* DSI1_PLL_FCLK(MHz) = DSIPHY(MHz) / regm3 < 173MHz */ ++ for (cur.regm3 = 1; cur.regm3 < REGM3_MAX; ++ ++cur.regm3) { ++ cur.dsi1_pll_fclk = cur.dsiphy / cur.regm3; ++ ++ /* this will narrow down the search a bit, ++ * but still give pixclocks below what was ++ * requested */ ++ if (cur.dsi1_pll_fclk < req_pck) ++ break; ++ ++ if (cur.dsi1_pll_fclk > DISPC_MAX_FCK) ++ continue; ++ ++ if (min_fck_per_pck && ++ cur.dsi1_pll_fclk < ++ req_pck * min_fck_per_pck) ++ continue; ++ ++ match = 1; ++ ++ find_lck_pck_divs(is_tft, req_pck, ++ cur.dsi1_pll_fclk, ++ &cur.lck_div, ++ &cur.pck_div); ++ ++ cur.lck = cur.dsi1_pll_fclk / cur.lck_div; ++ cur.pck = cur.lck / cur.pck_div; ++ ++ if (abs(cur.pck - req_pck) < ++ abs(best.pck - req_pck)) { ++ best = cur; ++ ++ if (cur.pck == req_pck) ++ goto found; ++ } ++ } ++ } ++ } ++found: ++ if (!match) { ++ if (min_fck_per_pck) { ++ DSSERR("Could not find suitable clock settings.\n" ++ "Turning FCK/PCK constraint off and" ++ "trying again.\n"); ++ min_fck_per_pck = 0; ++ goto retry; ++ } ++ ++ DSSERR("Could not find suitable clock settings.\n"); ++ ++ return -EINVAL; ++ } ++ ++ /* DSI2_PLL_FCLK (regm4) is not used. Set it to something sane. */ ++ best.regm4 = best.dsiphy / 48000000; ++ if (best.regm4 > REGM4_MAX) ++ best.regm4 = REGM4_MAX; ++ else if (best.regm4 == 0) ++ best.regm4 = 1; ++ best.dsi2_pll_fclk = best.dsiphy / best.regm4; ++ ++ if (cinfo) ++ *cinfo = best; ++ ++ dsi.cache_req_pck = req_pck; ++ dsi.cache_clk_freq = 0; ++ dsi.cache_cinfo = best; ++ ++ return 0; ++} ++ ++static int dsi_pll_calc_ddrfreq(unsigned long clk_freq, ++ struct dsi_clock_info *cinfo) ++{ ++ struct dsi_clock_info cur, best; ++ const bool use_dss2_fck = 1; ++ unsigned long datafreq; ++ ++ DSSDBG("dsi_pll_calc_ddrfreq\n"); ++ ++ if (clk_freq == dsi.cache_clk_freq && ++ dsi.cache_cinfo.clkin == dss_clk_get_rate(DSS_CLK_FCK2)) { ++ DSSDBG("DSI clock info found from cache\n"); ++ *cinfo = dsi.cache_cinfo; ++ return 0; ++ } ++ ++ datafreq = clk_freq * 4; ++ ++ memset(&best, 0, sizeof(best)); ++ ++ memset(&cur, 0, sizeof(cur)); ++ cur.use_dss2_fck = use_dss2_fck; ++ if (use_dss2_fck) { ++ cur.clkin = dss_clk_get_rate(DSS_CLK_FCK2); ++ cur.highfreq = 0; ++ } else { ++ cur.clkin = dispc_pclk_rate(); ++ if (cur.clkin < 32000000) ++ cur.highfreq = 0; ++ else ++ cur.highfreq = 1; ++ } ++ ++ /* no highfreq: 0.75MHz < Fint = clkin / regn < 2.1MHz */ ++ /* highfreq: 0.75MHz < Fint = clkin / (2*regn) < 2.1MHz */ ++ /* To reduce PLL lock time, keep Fint high (around 2 MHz) */ ++ for (cur.regn = 1; cur.regn < REGN_MAX; ++cur.regn) { ++ if (cur.highfreq == 0) ++ cur.fint = cur.clkin / cur.regn; ++ else ++ cur.fint = cur.clkin / (2 * cur.regn); ++ ++ if (cur.fint > FINT_MAX || cur.fint < FINT_MIN) ++ continue; ++ ++ /* DSIPHY(MHz) = (2 * regm / regn) * (clkin / (highfreq + 1)) */ ++ for (cur.regm = 1; cur.regm < REGM_MAX; ++cur.regm) { ++ unsigned long a, b; ++ ++ a = 2 * cur.regm * (cur.clkin/1000); ++ b = cur.regn * (cur.highfreq + 1); ++ cur.dsiphy = a / b * 1000; ++ ++ if (cur.dsiphy > 1800 * 1000 * 1000) ++ break; ++ ++ if (abs(cur.dsiphy - datafreq) < ++ abs(best.dsiphy - datafreq)) { ++ best = cur; ++ /* DSSDBG("best %ld\n", best.dsiphy); */ ++ } ++ ++ if (cur.dsiphy == datafreq) ++ goto found; ++ } ++ } ++found: ++ /* DSI1_PLL_FCLK (regm3) is not used. Set it to something sane. */ ++ best.regm3 = best.dsiphy / 48000000; ++ if (best.regm3 > REGM3_MAX) ++ best.regm3 = REGM3_MAX; ++ else if (best.regm3 == 0) ++ best.regm3 = 1; ++ best.dsi1_pll_fclk = best.dsiphy / best.regm3; ++ ++ /* DSI2_PLL_FCLK (regm4) is not used. Set it to something sane. */ ++ best.regm4 = best.dsiphy / 48000000; ++ if (best.regm4 > REGM4_MAX) ++ best.regm4 = REGM4_MAX; ++ else if (best.regm4 == 0) ++ best.regm4 = 1; ++ best.dsi2_pll_fclk = best.dsiphy / best.regm4; ++ ++ if (cinfo) ++ *cinfo = best; ++ ++ dsi.cache_clk_freq = clk_freq; ++ dsi.cache_req_pck = 0; ++ dsi.cache_cinfo = best; ++ ++ return 0; ++} ++ ++int dsi_pll_program(struct dsi_clock_info *cinfo) ++{ ++ int r = 0; ++ u32 l; ++ ++ DSSDBG("dsi_pll_program\n"); ++ ++ dsi.dsiphy = cinfo->dsiphy; ++ dsi.ddr_clk = dsi.dsiphy / 4; ++ dsi.dsi1_pll_fclk = cinfo->dsi1_pll_fclk; ++ dsi.dsi2_pll_fclk = cinfo->dsi2_pll_fclk; ++ ++ DSSDBG("DSI Fint %ld\n", cinfo->fint); ++ ++ DSSDBG("clkin (%s) rate %ld, highfreq %d\n", ++ cinfo->use_dss2_fck ? "dss2_fck" : "pclkfree", ++ cinfo->clkin, ++ cinfo->highfreq); ++ ++ /* DSIPHY == CLKIN4DDR */ ++ DSSDBG("DSIPHY = 2 * %d / %d * %lu / %d = %lu\n", ++ cinfo->regm, ++ cinfo->regn, ++ cinfo->clkin, ++ cinfo->highfreq + 1, ++ cinfo->dsiphy); ++ ++ DSSDBG("Data rate on 1 DSI lane %ld Mbps\n", ++ dsi.dsiphy / 1000 / 1000 / 2); ++ ++ DSSDBG("Clock lane freq %ld Hz\n", dsi.ddr_clk); ++ ++ DSSDBG("regm3 = %d, dsi1_pll_fclk = %lu\n", ++ cinfo->regm3, cinfo->dsi1_pll_fclk); ++ DSSDBG("regm4 = %d, dsi2_pll_fclk = %lu\n", ++ cinfo->regm4, cinfo->dsi2_pll_fclk); ++ ++ REG_FLD_MOD(DSI_PLL_CONTROL, 0, 0, 0); /* DSI_PLL_AUTOMODE = manual */ ++ ++ l = dsi_read_reg(DSI_PLL_CONFIGURATION1); ++ l = FLD_MOD(l, 1, 0, 0); /* DSI_PLL_STOPMODE */ ++ l = FLD_MOD(l, cinfo->regn - 1, 7, 1); /* DSI_PLL_REGN */ ++ l = FLD_MOD(l, cinfo->regm, 18, 8); /* DSI_PLL_REGM */ ++ l = FLD_MOD(l, cinfo->regm3 - 1, 22, 19); /* DSI_CLOCK_DIV */ ++ l = FLD_MOD(l, cinfo->regm4 - 1, 26, 23); /* DSIPROTO_CLOCK_DIV */ ++ dsi_write_reg(DSI_PLL_CONFIGURATION1, l); ++ ++ l = dsi_read_reg(DSI_PLL_CONFIGURATION2); ++ l = FLD_MOD(l, 7, 4, 1); /* DSI_PLL_FREQSEL */ ++ /* DSI_PLL_CLKSEL */ ++ l = FLD_MOD(l, cinfo->use_dss2_fck ? 0 : 1, 11, 11); ++ l = FLD_MOD(l, cinfo->highfreq, 12, 12); /* DSI_PLL_HIGHFREQ */ ++ l = FLD_MOD(l, 1, 13, 13); /* DSI_PLL_REFEN */ ++ l = FLD_MOD(l, 0, 14, 14); /* DSIPHY_CLKINEN */ ++ l = FLD_MOD(l, 1, 20, 20); /* DSI_HSDIVBYPASS */ ++ dsi_write_reg(DSI_PLL_CONFIGURATION2, l); ++ ++ REG_FLD_MOD(DSI_PLL_GO, 1, 0, 0); /* DSI_PLL_GO */ ++ ++ if (wait_for_bit_change(DSI_PLL_GO, 0, 0) != 0) { ++ DSSERR("dsi pll go bit not going down.\n"); ++ r = -EIO; ++ goto err; ++ } ++ ++ if (wait_for_bit_change(DSI_PLL_STATUS, 1, 1) != 1) { ++ DSSERR("cannot lock PLL\n"); ++ r = -EIO; ++ goto err; ++ } ++ ++ dsi.pll_locked = 1; ++ ++ l = dsi_read_reg(DSI_PLL_CONFIGURATION2); ++ l = FLD_MOD(l, 0, 0, 0); /* DSI_PLL_IDLE */ ++ l = FLD_MOD(l, 0, 5, 5); /* DSI_PLL_PLLLPMODE */ ++ l = FLD_MOD(l, 0, 6, 6); /* DSI_PLL_LOWCURRSTBY */ ++ l = FLD_MOD(l, 0, 7, 7); /* DSI_PLL_TIGHTPHASELOCK */ ++ l = FLD_MOD(l, 0, 8, 8); /* DSI_PLL_DRIFTGUARDEN */ ++ l = FLD_MOD(l, 0, 10, 9); /* DSI_PLL_LOCKSEL */ ++ l = FLD_MOD(l, 1, 13, 13); /* DSI_PLL_REFEN */ ++ l = FLD_MOD(l, 1, 14, 14); /* DSIPHY_CLKINEN */ ++ l = FLD_MOD(l, 0, 15, 15); /* DSI_BYPASSEN */ ++ l = FLD_MOD(l, 1, 16, 16); /* DSS_CLOCK_EN */ ++ l = FLD_MOD(l, 0, 17, 17); /* DSS_CLOCK_PWDN */ ++ l = FLD_MOD(l, 1, 18, 18); /* DSI_PROTO_CLOCK_EN */ ++ l = FLD_MOD(l, 0, 19, 19); /* DSI_PROTO_CLOCK_PWDN */ ++ l = FLD_MOD(l, 0, 20, 20); /* DSI_HSDIVBYPASS */ ++ dsi_write_reg(DSI_PLL_CONFIGURATION2, l); ++ ++ DSSDBG("PLL config done\n"); ++err: ++ return r; ++} ++ ++int dsi_pll_init(bool enable_hsclk, bool enable_hsdiv) ++{ ++ int r = 0; ++ enum dsi_pll_power_state pwstate; ++ struct dispc_clock_info cinfo; ++ ++ DSSDBG("PLL init\n"); ++ ++ enable_clocks(1); ++ dsi_enable_pll_clock(1); ++ ++ /* configure dispc fck and pixel clock to something sane */ ++ r = dispc_calc_clock_div(1, 48 * 1000 * 1000, &cinfo); ++ if (r) ++ goto err0; ++ ++ r = dispc_set_clock_div(&cinfo); ++ if (r) { ++ DSSERR("Failed to set basic clocks\n"); ++ goto err0; ++ } ++ ++ r = dss_dsi_power_up(); ++ if (r) ++ goto err0; ++ ++ /* PLL does not come out of reset without this... */ ++ dispc_pck_free_enable(1); ++ ++ if (wait_for_bit_change(DSI_PLL_STATUS, 0, 1) != 1) { ++ DSSERR("PLL not coming out of reset.\n"); ++ r = -ENODEV; ++ goto err1; ++ } ++ ++ /* ... but if left on, we get problems when planes do not ++ * fill the whole display. No idea about this XXX */ ++ dispc_pck_free_enable(0); ++ ++ if (enable_hsclk && enable_hsdiv) ++ pwstate = DSI_PLL_POWER_ON_ALL; ++ else if (enable_hsclk) ++ pwstate = DSI_PLL_POWER_ON_HSCLK; ++ else if (enable_hsdiv) ++ pwstate = DSI_PLL_POWER_ON_DIV; ++ else ++ pwstate = DSI_PLL_POWER_OFF; ++ ++ r = dsi_pll_power(pwstate); ++ ++ if (r) ++ goto err1; ++ ++ DSSDBG("PLL init done\n"); ++ ++ return 0; ++err1: ++ dss_dsi_power_down(); ++err0: ++ enable_clocks(0); ++ dsi_enable_pll_clock(0); ++ return r; ++} ++ ++void dsi_pll_uninit(void) ++{ ++ enable_clocks(0); ++ dsi_enable_pll_clock(0); ++ ++ dsi.pll_locked = 0; ++ dsi_pll_power(DSI_PLL_POWER_OFF); ++ dss_dsi_power_down(); ++ DSSDBG("PLL uninit done\n"); ++} ++ ++unsigned long dsi_get_dsi1_pll_rate(void) ++{ ++ return dsi.dsi1_pll_fclk; ++} ++ ++unsigned long dsi_get_dsi2_pll_rate(void) ++{ ++ return dsi.dsi2_pll_fclk; ++} ++ ++void dsi_dump_clocks(struct seq_file *s) ++{ ++ int clksel; ++ ++ enable_clocks(1); ++ ++ clksel = REG_GET(DSI_PLL_CONFIGURATION2, 11, 11); ++ ++ seq_printf(s, "- dsi -\n"); ++ ++ seq_printf(s, "dsi fclk source = %s\n", ++ dss_get_dsi_clk_source() == 0 ? ++ "dss1_alwon_fclk" : "dsi2_pll_fclk"); ++ ++ seq_printf(s, "dsi pll source = %s\n", ++ clksel == 0 ? ++ "dss2_alwon_fclk" : "pclkfree"); ++ ++ seq_printf(s, "DSIPHY\t\t%lu\nDDR_CLK\t\t%lu\n", ++ dsi.dsiphy, dsi.ddr_clk); ++ ++ seq_printf(s, "dsi1_pll_fck\t%lu (%s)\n" ++ "dsi2_pll_fck\t%lu (%s)\n", ++ dsi.dsi1_pll_fclk, ++ dss_get_dispc_clk_source() == 0 ? "off" : "on", ++ dsi.dsi2_pll_fclk, ++ dss_get_dsi_clk_source() == 0 ? "off" : "on"); ++ ++ enable_clocks(0); ++} ++ ++void dsi_dump_regs(struct seq_file *s) ++{ ++#define DUMPREG(r) seq_printf(s, "%-35s %08x\n", #r, dsi_read_reg(r)) ++ ++ dss_clk_enable(DSS_CLK_ICK | DSS_CLK_FCK1); ++ ++ DUMPREG(DSI_REVISION); ++ DUMPREG(DSI_SYSCONFIG); ++ DUMPREG(DSI_SYSSTATUS); ++ DUMPREG(DSI_IRQSTATUS); ++ DUMPREG(DSI_IRQENABLE); ++ DUMPREG(DSI_CTRL); ++ DUMPREG(DSI_COMPLEXIO_CFG1); ++ DUMPREG(DSI_COMPLEXIO_IRQ_STATUS); ++ DUMPREG(DSI_COMPLEXIO_IRQ_ENABLE); ++ DUMPREG(DSI_CLK_CTRL); ++ DUMPREG(DSI_TIMING1); ++ DUMPREG(DSI_TIMING2); ++ DUMPREG(DSI_VM_TIMING1); ++ DUMPREG(DSI_VM_TIMING2); ++ DUMPREG(DSI_VM_TIMING3); ++ DUMPREG(DSI_CLK_TIMING); ++ DUMPREG(DSI_TX_FIFO_VC_SIZE); ++ DUMPREG(DSI_RX_FIFO_VC_SIZE); ++ DUMPREG(DSI_COMPLEXIO_CFG2); ++ DUMPREG(DSI_RX_FIFO_VC_FULLNESS); ++ DUMPREG(DSI_VM_TIMING4); ++ DUMPREG(DSI_TX_FIFO_VC_EMPTINESS); ++ DUMPREG(DSI_VM_TIMING5); ++ DUMPREG(DSI_VM_TIMING6); ++ DUMPREG(DSI_VM_TIMING7); ++ DUMPREG(DSI_STOPCLK_TIMING); ++ ++ DUMPREG(DSI_VC_CTRL(0)); ++ DUMPREG(DSI_VC_TE(0)); ++ DUMPREG(DSI_VC_LONG_PACKET_HEADER(0)); ++ DUMPREG(DSI_VC_LONG_PACKET_PAYLOAD(0)); ++ DUMPREG(DSI_VC_SHORT_PACKET_HEADER(0)); ++ DUMPREG(DSI_VC_IRQSTATUS(0)); ++ DUMPREG(DSI_VC_IRQENABLE(0)); ++ ++ DUMPREG(DSI_VC_CTRL(1)); ++ DUMPREG(DSI_VC_TE(1)); ++ DUMPREG(DSI_VC_LONG_PACKET_HEADER(1)); ++ DUMPREG(DSI_VC_LONG_PACKET_PAYLOAD(1)); ++ DUMPREG(DSI_VC_SHORT_PACKET_HEADER(1)); ++ DUMPREG(DSI_VC_IRQSTATUS(1)); ++ DUMPREG(DSI_VC_IRQENABLE(1)); ++ ++ DUMPREG(DSI_VC_CTRL(2)); ++ DUMPREG(DSI_VC_TE(2)); ++ DUMPREG(DSI_VC_LONG_PACKET_HEADER(2)); ++ DUMPREG(DSI_VC_LONG_PACKET_PAYLOAD(2)); ++ DUMPREG(DSI_VC_SHORT_PACKET_HEADER(2)); ++ DUMPREG(DSI_VC_IRQSTATUS(2)); ++ DUMPREG(DSI_VC_IRQENABLE(2)); ++ ++ DUMPREG(DSI_VC_CTRL(3)); ++ DUMPREG(DSI_VC_TE(3)); ++ DUMPREG(DSI_VC_LONG_PACKET_HEADER(3)); ++ DUMPREG(DSI_VC_LONG_PACKET_PAYLOAD(3)); ++ DUMPREG(DSI_VC_SHORT_PACKET_HEADER(3)); ++ DUMPREG(DSI_VC_IRQSTATUS(3)); ++ DUMPREG(DSI_VC_IRQENABLE(3)); ++ ++ DUMPREG(DSI_DSIPHY_CFG0); ++ DUMPREG(DSI_DSIPHY_CFG1); ++ DUMPREG(DSI_DSIPHY_CFG2); ++ DUMPREG(DSI_DSIPHY_CFG5); ++ ++ DUMPREG(DSI_PLL_CONTROL); ++ DUMPREG(DSI_PLL_STATUS); ++ DUMPREG(DSI_PLL_GO); ++ DUMPREG(DSI_PLL_CONFIGURATION1); ++ DUMPREG(DSI_PLL_CONFIGURATION2); ++ ++ dss_clk_disable(DSS_CLK_ICK | DSS_CLK_FCK1); ++#undef DUMPREG ++} ++ ++enum dsi_complexio_power_state { ++ DSI_COMPLEXIO_POWER_OFF = 0x0, ++ DSI_COMPLEXIO_POWER_ON = 0x1, ++ DSI_COMPLEXIO_POWER_ULPS = 0x2, ++}; ++ ++static int dsi_complexio_power(enum dsi_complexio_power_state state) ++{ ++ int t = 0; ++ ++ /* PWR_CMD */ ++ REG_FLD_MOD(DSI_COMPLEXIO_CFG1, state, 28, 27); ++ ++ /* PWR_STATUS */ ++ while (FLD_GET(dsi_read_reg(DSI_COMPLEXIO_CFG1), 26, 25) != state) { ++ udelay(1); ++ if (t++ > 1000) { ++ DSSERR("failed to set complexio power state to " ++ "%d\n", state); ++ return -ENODEV; ++ } ++ } ++ ++ return 0; ++} ++ ++static void dsi_complexio_config(struct omap_display *display) ++{ ++ u32 r; ++ ++ int clk_lane = display->hw_config.u.dsi.clk_lane; ++ int data1_lane = display->hw_config.u.dsi.data1_lane; ++ int data2_lane = display->hw_config.u.dsi.data2_lane; ++ int clk_pol = display->hw_config.u.dsi.clk_pol; ++ int data1_pol = display->hw_config.u.dsi.data1_pol; ++ int data2_pol = display->hw_config.u.dsi.data2_pol; ++ ++ r = dsi_read_reg(DSI_COMPLEXIO_CFG1); ++ r = FLD_MOD(r, clk_lane, 2, 0); ++ r = FLD_MOD(r, clk_pol, 3, 3); ++ r = FLD_MOD(r, data1_lane, 6, 4); ++ r = FLD_MOD(r, data1_pol, 7, 7); ++ r = FLD_MOD(r, data2_lane, 10, 8); ++ r = FLD_MOD(r, data2_pol, 11, 11); ++ dsi_write_reg(DSI_COMPLEXIO_CFG1, r); ++ ++ /* The configuration of the DSI complex I/O (number of data lanes, ++ position, differential order) should not be changed while ++ DSS.DSI_CLK_CRTRL[20] LP_CLK_ENABLE bit is set to 1. In order for ++ the hardware to take into account a new configuration of the complex ++ I/O (done in DSS.DSI_COMPLEXIO_CFG1 register), it is recommended to ++ follow this sequence: First set the DSS.DSI_CTRL[0] IF_EN bit to 1, ++ then reset the DSS.DSI_CTRL[0] IF_EN to 0, then set ++ DSS.DSI_CLK_CTRL[20] LP_CLK_ENABLE to 1 and finally set again the ++ DSS.DSI_CTRL[0] IF_EN bit to 1. If the sequence is not followed, the ++ DSI complex I/O configuration is unknown. */ ++ ++ /* ++ REG_FLD_MOD(DSI_CTRL, 1, 0, 0); ++ REG_FLD_MOD(DSI_CTRL, 0, 0, 0); ++ REG_FLD_MOD(DSI_CLK_CTRL, 1, 20, 20); ++ REG_FLD_MOD(DSI_CTRL, 1, 0, 0); ++ */ ++} ++ ++static inline unsigned ns2ddr(unsigned ns) ++{ ++ /* convert time in ns to ddr ticks, rounding up */ ++ return (ns * (dsi.ddr_clk/1000/1000) + 999) / 1000; ++} ++ ++static inline unsigned ddr2ns(unsigned ddr) ++{ ++ return ddr * 1000 * 1000 / (dsi.ddr_clk / 1000); ++} ++ ++static void dsi_complexio_timings(void) ++{ ++ u32 r; ++ u32 ths_prepare, ths_prepare_ths_zero, ths_trail, ths_exit; ++ u32 tlpx_half, tclk_trail, tclk_zero; ++ u32 tclk_prepare; ++ ++ /* calculate timings */ ++ ++ /* 1 * DDR_CLK = 2 * UI */ ++ ++ /* min 40ns + 4*UI max 85ns + 6*UI */ ++ ths_prepare = ns2ddr(59) + 2; ++ ++ /* min 145ns + 10*UI */ ++ ths_prepare_ths_zero = ns2ddr(145) + 5; ++ ++ /* min max(8*UI, 60ns+4*UI) */ ++ ths_trail = max((unsigned)4, ns2ddr(60) + 2); ++ ++ /* min 100ns */ ++ ths_exit = ns2ddr(100); ++ ++ /* tlpx min 50n */ ++ tlpx_half = ns2ddr(25); ++ ++ /* min 60ns */ ++ tclk_trail = ns2ddr(60); ++ ++ /* min 38ns, max 95ns */ ++ tclk_prepare = ns2ddr(38); ++ ++ /* min tclk-prepare + tclk-zero = 300ns */ ++ tclk_zero = ns2ddr(300 - 38); ++ ++ DSSDBG("ths_prepare %u (%uns), ths_prepare_ths_zero %u (%uns)\n", ++ ths_prepare, ddr2ns(ths_prepare), ++ ths_prepare_ths_zero, ddr2ns(ths_prepare_ths_zero)); ++ DSSDBG("ths_trail %u (%uns), ths_exit %u (%uns)\n", ++ ths_trail, ddr2ns(ths_trail), ++ ths_exit, ddr2ns(ths_exit)); ++ ++ DSSDBG("tlpx_half %u (%uns), tclk_trail %u (%uns), " ++ "tclk_zero %u (%uns)\n", ++ tlpx_half, ddr2ns(tlpx_half), ++ tclk_trail, ddr2ns(tclk_trail), ++ tclk_zero, ddr2ns(tclk_zero)); ++ DSSDBG("tclk_prepare %u (%uns)\n", ++ tclk_prepare, ddr2ns(tclk_prepare)); ++ ++ /* program timings */ ++ ++ r = dsi_read_reg(DSI_DSIPHY_CFG0); ++ r = FLD_MOD(r, ths_prepare, 31, 24); ++ r = FLD_MOD(r, ths_prepare_ths_zero, 23, 16); ++ r = FLD_MOD(r, ths_trail, 15, 8); ++ r = FLD_MOD(r, ths_exit, 7, 0); ++ dsi_write_reg(DSI_DSIPHY_CFG0, r); ++ ++ r = dsi_read_reg(DSI_DSIPHY_CFG1); ++ r = FLD_MOD(r, tlpx_half, 22, 16); ++ r = FLD_MOD(r, tclk_trail, 15, 8); ++ r = FLD_MOD(r, tclk_zero, 7, 0); ++ dsi_write_reg(DSI_DSIPHY_CFG1, r); ++ ++ r = dsi_read_reg(DSI_DSIPHY_CFG2); ++ r = FLD_MOD(r, tclk_prepare, 7, 0); ++ dsi_write_reg(DSI_DSIPHY_CFG2, r); ++} ++ ++ ++static int dsi_complexio_init(struct omap_display *display) ++{ ++ int r = 0; ++ ++ DSSDBG("dsi_complexio_init\n"); ++ ++ /* CIO_CLK_ICG, enable L3 clk to CIO */ ++ REG_FLD_MOD(DSI_CLK_CTRL, 1, 14, 14); ++ ++ /* A dummy read using the SCP interface to any DSIPHY register is ++ * required after DSIPHY reset to complete the reset of the DSI complex ++ * I/O. */ ++ dsi_read_reg(DSI_DSIPHY_CFG5); ++ ++ if (wait_for_bit_change(DSI_DSIPHY_CFG5, 30, 1) != 1) { ++ DSSERR("ComplexIO PHY not coming out of reset.\n"); ++ r = -ENODEV; ++ goto err; ++ } ++ ++ dsi_complexio_config(display); ++ ++ r = dsi_complexio_power(DSI_COMPLEXIO_POWER_ON); ++ ++ if (r) ++ goto err; ++ ++ if (wait_for_bit_change(DSI_COMPLEXIO_CFG1, 29, 1) != 1) { ++ DSSERR("ComplexIO not coming out of reset.\n"); ++ r = -ENODEV; ++ goto err; ++ } ++ ++ if (wait_for_bit_change(DSI_COMPLEXIO_CFG1, 21, 1) != 1) { ++ DSSERR("ComplexIO LDO power down.\n"); ++ r = -ENODEV; ++ goto err; ++ } ++ ++ dsi_complexio_timings(); ++ ++ /* ++ The configuration of the DSI complex I/O (number of data lanes, ++ position, differential order) should not be changed while ++ DSS.DSI_CLK_CRTRL[20] LP_CLK_ENABLE bit is set to 1. For the ++ hardware to recognize a new configuration of the complex I/O (done ++ in DSS.DSI_COMPLEXIO_CFG1 register), it is recommended to follow ++ this sequence: First set the DSS.DSI_CTRL[0] IF_EN bit to 1, next ++ reset the DSS.DSI_CTRL[0] IF_EN to 0, then set DSS.DSI_CLK_CTRL[20] ++ LP_CLK_ENABLE to 1, and finally, set again the DSS.DSI_CTRL[0] IF_EN ++ bit to 1. If the sequence is not followed, the DSi complex I/O ++ configuration is undetermined. ++ */ ++ dsi_if_enable(1); ++ dsi_if_enable(0); ++ REG_FLD_MOD(DSI_CLK_CTRL, 1, 20, 20); /* LP_CLK_ENABLE */ ++ dsi_if_enable(1); ++ dsi_if_enable(0); ++ ++ DSSDBG("CIO init done\n"); ++err: ++ return r; ++} ++ ++static void dsi_complexio_uninit(void) ++{ ++ dsi_complexio_power(DSI_COMPLEXIO_POWER_OFF); ++} ++ ++static int _dsi_wait_reset(void) ++{ ++ int i = 0; ++ ++ while (REG_GET(DSI_SYSSTATUS, 0, 0) == 0) { ++ if (i++ > 5) { ++ DSSERR("soft reset failed\n"); ++ return -ENODEV; ++ } ++ udelay(1); ++ } ++ ++ return 0; ++} ++ ++static int _dsi_reset(void) ++{ ++ /* Soft reset */ ++ REG_FLD_MOD(DSI_SYSCONFIG, 1, 1, 1); ++ return _dsi_wait_reset(); ++} ++ ++ ++static void dsi_config_tx_fifo(enum fifo_size size1, enum fifo_size size2, ++ enum fifo_size size3, enum fifo_size size4) ++{ ++ u32 r = 0; ++ int add = 0; ++ int i; ++ ++ dsi.vc[0].fifo_size = size1; ++ dsi.vc[1].fifo_size = size2; ++ dsi.vc[2].fifo_size = size3; ++ dsi.vc[3].fifo_size = size4; ++ ++ for (i = 0; i < 4; i++) { ++ u8 v; ++ int size = dsi.vc[i].fifo_size; ++ ++ if (add + size > 4) { ++ DSSERR("Illegal FIFO configuration\n"); ++ BUG(); ++ } ++ ++ v = FLD_VAL(add, 2, 0) | FLD_VAL(size, 7, 4); ++ r |= v << (8 * i); ++ /*DSSDBG("TX FIFO vc %d: size %d, add %d\n", i, size, add); */ ++ add += size; ++ } ++ ++ dsi_write_reg(DSI_TX_FIFO_VC_SIZE, r); ++} ++ ++static void dsi_config_rx_fifo(enum fifo_size size1, enum fifo_size size2, ++ enum fifo_size size3, enum fifo_size size4) ++{ ++ u32 r = 0; ++ int add = 0; ++ int i; ++ ++ dsi.vc[0].fifo_size = size1; ++ dsi.vc[1].fifo_size = size2; ++ dsi.vc[2].fifo_size = size3; ++ dsi.vc[3].fifo_size = size4; ++ ++ for (i = 0; i < 4; i++) { ++ u8 v; ++ int size = dsi.vc[i].fifo_size; ++ ++ if (add + size > 4) { ++ DSSERR("Illegal FIFO configuration\n"); ++ BUG(); ++ } ++ ++ v = FLD_VAL(add, 2, 0) | FLD_VAL(size, 7, 4); ++ r |= v << (8 * i); ++ /*DSSDBG("RX FIFO vc %d: size %d, add %d\n", i, size, add); */ ++ add += size; ++ } ++ ++ dsi_write_reg(DSI_RX_FIFO_VC_SIZE, r); ++} ++ ++static int dsi_force_tx_stop_mode_io(void) ++{ ++ u32 r; ++ ++ r = dsi_read_reg(DSI_TIMING1); ++ r = FLD_MOD(r, 1, 15, 15); /* FORCE_TX_STOP_MODE_IO */ ++ dsi_write_reg(DSI_TIMING1, r); ++ ++ if (wait_for_bit_change(DSI_TIMING1, 15, 0) != 0) { ++ DSSERR("TX_STOP bit not going down\n"); ++ return -EIO; ++ } ++ ++ return 0; ++} ++ ++static void dsi_vc_print_status(int channel) ++{ ++ u32 r; ++ ++ r = dsi_read_reg(DSI_VC_CTRL(channel)); ++ DSSDBG("vc %d: TX_FIFO_NOT_EMPTY %d, BTA_EN %d, VC_BUSY %d, " ++ "TX_FIFO_FULL %d, RX_FIFO_NOT_EMPTY %d, ", ++ channel, ++ FLD_GET(r, 5, 5), ++ FLD_GET(r, 6, 6), ++ FLD_GET(r, 15, 15), ++ FLD_GET(r, 16, 16), ++ FLD_GET(r, 20, 20)); ++ ++ r = dsi_read_reg(DSI_TX_FIFO_VC_EMPTINESS); ++ DSSDBG("EMPTINESS %d\n", (r >> (8 * channel)) & 0xff); ++} ++ ++static void dsi_vc_config(int channel) ++{ ++ u32 r; ++ ++ DSSDBG("dsi_vc_config %d\n", channel); ++ ++ r = dsi_read_reg(DSI_VC_CTRL(channel)); ++ ++ r = FLD_MOD(r, 0, 1, 1); /* SOURCE, 0 = L4 */ ++ r = FLD_MOD(r, 0, 2, 2); /* BTA_SHORT_EN */ ++ r = FLD_MOD(r, 0, 3, 3); /* BTA_LONG_EN */ ++ r = FLD_MOD(r, 0, 4, 4); /* MODE, 0 = command */ ++ r = FLD_MOD(r, 1, 7, 7); /* CS_TX_EN */ ++ r = FLD_MOD(r, 1, 8, 8); /* ECC_TX_EN */ ++ r = FLD_MOD(r, 0, 9, 9); /* MODE_SPEED, high speed on/off */ ++ ++ r = FLD_MOD(r, 4, 29, 27); /* DMA_RX_REQ_NB = no dma */ ++ r = FLD_MOD(r, 4, 23, 21); /* DMA_TX_REQ_NB = no dma */ ++ ++ dsi_write_reg(DSI_VC_CTRL(channel), r); ++} ++ ++static void dsi_vc_config_vp(int channel) ++{ ++ u32 r; ++ ++ DSSDBG("dsi_vc_config_vp\n"); ++ ++ r = dsi_read_reg(DSI_VC_CTRL(channel)); ++ ++ r = FLD_MOD(r, 1, 1, 1); /* SOURCE, 1 = video port */ ++ r = FLD_MOD(r, 0, 2, 2); /* BTA_SHORT_EN */ ++ r = FLD_MOD(r, 0, 3, 3); /* BTA_LONG_EN */ ++ r = FLD_MOD(r, 0, 4, 4); /* MODE, 0 = command */ ++ r = FLD_MOD(r, 1, 7, 7); /* CS_TX_EN */ ++ r = FLD_MOD(r, 1, 8, 8); /* ECC_TX_EN */ ++ r = FLD_MOD(r, 1, 9, 9); /* MODE_SPEED, high speed on/off */ ++ ++ r = FLD_MOD(r, 4, 29, 27); /* DMA_RX_REQ_NB = no dma */ ++ r = FLD_MOD(r, 4, 23, 21); /* DMA_TX_REQ_NB = no dma */ ++ ++ dsi_write_reg(DSI_VC_CTRL(channel), r); ++} ++ ++ ++static int dsi_vc_enable(int channel, bool enable) ++{ ++ DSSDBG("dsi_vc_enable channel %d, enable %d\n", channel, enable); ++ ++ enable = enable ? 1 : 0; ++ ++ REG_FLD_MOD(DSI_VC_CTRL(channel), enable, 0, 0); ++ ++ if (wait_for_bit_change(DSI_VC_CTRL(channel), 0, enable) != enable) { ++ DSSERR("Failed to set dsi_vc_enable to %d\n", enable); ++ return -EIO; ++ } ++ ++ return 0; ++} ++ ++static void dsi_vc_enable_hs(int channel, bool enable) ++{ ++ DSSDBG("dsi_vc_enable_hs(%d, %d)\n", channel, enable); ++ ++ dsi_vc_enable(channel, 0); ++ dsi_if_enable(0); ++ ++ REG_FLD_MOD(DSI_VC_CTRL(channel), enable, 9, 9); ++ ++ dsi_vc_enable(channel, 1); ++ dsi_if_enable(1); ++ ++ dsi_force_tx_stop_mode_io(); ++} ++ ++static void dsi_vc_flush_long_data(int channel) ++{ ++ while (REG_GET(DSI_VC_CTRL(channel), 20, 20)) { ++ u32 val; ++ val = dsi_read_reg(DSI_VC_SHORT_PACKET_HEADER(channel)); ++ DSSDBG("\t\tb1 %#02x b2 %#02x b3 %#02x b4 %#02x\n", ++ (val >> 0) & 0xff, ++ (val >> 8) & 0xff, ++ (val >> 16) & 0xff, ++ (val >> 24) & 0xff); ++ } ++} ++ ++static void dsi_show_rx_ack_with_err(u16 err) ++{ ++ DSSERR("\tACK with ERROR (%#x):\n", err); ++ if (err & (1 << 0)) ++ DSSERR("\t\tSoT Error\n"); ++ if (err & (1 << 1)) ++ DSSERR("\t\tSoT Sync Error\n"); ++ if (err & (1 << 2)) ++ DSSERR("\t\tEoT Sync Error\n"); ++ if (err & (1 << 3)) ++ DSSERR("\t\tEscape Mode Entry Command Error\n"); ++ if (err & (1 << 4)) ++ DSSERR("\t\tLP Transmit Sync Error\n"); ++ if (err & (1 << 5)) ++ DSSERR("\t\tHS Receive Timeout Error\n"); ++ if (err & (1 << 6)) ++ DSSERR("\t\tFalse Control Error\n"); ++ if (err & (1 << 7)) ++ DSSERR("\t\t(reserved7)\n"); ++ if (err & (1 << 8)) ++ DSSERR("\t\tECC Error, single-bit (corrected)\n"); ++ if (err & (1 << 9)) ++ DSSERR("\t\tECC Error, multi-bit (not corrected)\n"); ++ if (err & (1 << 10)) ++ DSSERR("\t\tChecksum Error\n"); ++ if (err & (1 << 11)) ++ DSSERR("\t\tData type not recognized\n"); ++ if (err & (1 << 12)) ++ DSSERR("\t\tInvalid VC ID\n"); ++ if (err & (1 << 13)) ++ DSSERR("\t\tInvalid Transmission Length\n"); ++ if (err & (1 << 14)) ++ DSSERR("\t\t(reserved14)\n"); ++ if (err & (1 << 15)) ++ DSSERR("\t\tDSI Protocol Violation\n"); ++} ++ ++static u16 dsi_vc_flush_receive_data(int channel) ++{ ++ /* RX_FIFO_NOT_EMPTY */ ++ while (REG_GET(DSI_VC_CTRL(channel), 20, 20)) { ++ u32 val; ++ u8 dt; ++ val = dsi_read_reg(DSI_VC_SHORT_PACKET_HEADER(channel)); ++ DSSDBG("\trawval %#08x\n", val); ++ dt = FLD_GET(val, 5, 0); ++ if (dt == DSI_DT_RX_ACK_WITH_ERR) { ++ u16 err = FLD_GET(val, 23, 8); ++ dsi_show_rx_ack_with_err(err); ++ } else if (dt == DSI_DT_RX_SHORT_READ_1) { ++ DSSDBG("\tDCS short response, 1 byte: %#x\n", ++ FLD_GET(val, 23, 8)); ++ } else if (dt == DSI_DT_RX_SHORT_READ_2) { ++ DSSDBG("\tDCS short response, 2 byte: %#x\n", ++ FLD_GET(val, 23, 8)); ++ } else if (dt == DSI_DT_RX_DCS_LONG_READ) { ++ DSSDBG("\tDCS long response, len %d\n", ++ FLD_GET(val, 23, 8)); ++ dsi_vc_flush_long_data(channel); ++ } else { ++ DSSERR("\tunknown datatype 0x%02x\n", dt); ++ } ++ } ++ return 0; ++} ++ ++static int dsi_vc_send_bta(int channel) ++{ ++ unsigned long tmo; ++ ++ /*DSSDBG("dsi_vc_send_bta_sync %d\n", channel); */ ++ ++ if (REG_GET(DSI_VC_CTRL(channel), 20, 20)) { /* RX_FIFO_NOT_EMPTY */ ++ DSSERR("rx fifo not empty when sending BTA, dumping data:\n"); ++ dsi_vc_flush_receive_data(channel); ++ } ++ ++ REG_FLD_MOD(DSI_VC_CTRL(channel), 1, 6, 6); /* BTA_EN */ ++ ++ tmo = jiffies + msecs_to_jiffies(10); ++ while (REG_GET(DSI_VC_CTRL(channel), 6, 6) == 1) { ++ if (time_after(jiffies, tmo)) { ++ DSSERR("Failed to send BTA\n"); ++ return -EIO; ++ } ++ } ++ ++ return 0; ++} ++ ++static int dsi_vc_send_bta_sync(int channel) ++{ ++ int r = 0; ++ ++ init_completion(&dsi.bta_completion); ++ ++ dsi_vc_enable_bta_irq(channel); ++ ++ r = dsi_vc_send_bta(channel); ++ if (r) ++ goto err; ++ ++ if (wait_for_completion_timeout(&dsi.bta_completion, ++ msecs_to_jiffies(500)) == 0) { ++ DSSERR("Failed to receive BTA\n"); ++ r = -EIO; ++ goto err; ++ } ++err: ++ dsi_vc_disable_bta_irq(channel); ++ ++ return r; ++} ++ ++static inline void dsi_vc_write_long_header(int channel, u8 data_type, ++ u16 len, u8 ecc) ++{ ++ u32 val; ++ u8 data_id; ++ ++ /*data_id = data_type | channel << 6; */ ++ data_id = data_type | dsi.vc[channel].dest_per << 6; ++ ++ val = FLD_VAL(data_id, 7, 0) | FLD_VAL(len, 23, 8) | ++ FLD_VAL(ecc, 31, 24); ++ ++ dsi_write_reg(DSI_VC_LONG_PACKET_HEADER(channel), val); ++} ++ ++static inline void dsi_vc_write_long_payload(int channel, ++ u8 b1, u8 b2, u8 b3, u8 b4) ++{ ++ u32 val; ++ ++ val = b4 << 24 | b3 << 16 | b2 << 8 | b1 << 0; ++ ++/* DSSDBG("\twriting %02x, %02x, %02x, %02x (%#010x)\n", ++ b1, b2, b3, b4, val); */ ++ ++ dsi_write_reg(DSI_VC_LONG_PACKET_PAYLOAD(channel), val); ++} ++ ++static int dsi_vc_send_long(int channel, u8 data_type, u8 *data, u16 len, ++ u8 ecc) ++{ ++ /*u32 val; */ ++ int i; ++ u8 *p; ++ int r = 0; ++ u8 b1, b2, b3, b4; ++ ++ if (dsi.debug_write) ++ DSSDBG("dsi_vc_send_long, %d bytes\n", len); ++ ++ /* len + header */ ++ if (dsi.vc[channel].fifo_size * 32 * 4 < len + 4) { ++ DSSERR("unable to send long packet: packet too long.\n"); ++ return -EINVAL; ++ } ++ ++ dsi_vc_write_long_header(channel, data_type, len, ecc); ++ ++ /*dsi_vc_print_status(0); */ ++ ++ p = data; ++ for (i = 0; i < len >> 2; i++) { ++ if (dsi.debug_write) ++ DSSDBG("\tsending full packet %d\n", i); ++ /*dsi_vc_print_status(0); */ ++ ++ b1 = *p++; ++ b2 = *p++; ++ b3 = *p++; ++ b4 = *p++; ++ ++ dsi_vc_write_long_payload(channel, b1, b2, b3, b4); ++ } ++ ++ i = len % 4; ++ if (i) { ++ b1 = 0; b2 = 0; b3 = 0; ++ ++ if (dsi.debug_write) ++ DSSDBG("\tsending remainder bytes %d\n", i); ++ ++ switch (i) { ++ case 3: ++ b1 = *p++; ++ b2 = *p++; ++ b3 = *p++; ++ break; ++ case 2: ++ b1 = *p++; ++ b2 = *p++; ++ break; ++ case 1: ++ b1 = *p++; ++ break; ++ } ++ ++ dsi_vc_write_long_payload(channel, b1, b2, b3, 0); ++ } ++ ++ return r; ++} ++ ++static int dsi_vc_send_short(int channel, u8 data_type, u16 data, u8 ecc) ++{ ++ u32 r; ++ u8 data_id; ++ ++ if (dsi.debug_write) ++ DSSDBG("dsi_vc_send_short(ch%d, dt %#x, b1 %#x, b2 %#x)\n", ++ channel, ++ data_type, data & 0xff, (data >> 8) & 0xff); ++ ++ if (FLD_GET(dsi_read_reg(DSI_VC_CTRL(channel)), 16, 16)) { ++ DSSERR("ERROR FIFO FULL, aborting transfer\n"); ++ return -EINVAL; ++ } ++ ++ data_id = data_type | channel << 6; ++ ++ r = (data_id << 0) | (data << 8) | (ecc << 24); ++ ++ dsi_write_reg(DSI_VC_SHORT_PACKET_HEADER(channel), r); ++ ++ return 0; ++} ++ ++int dsi_vc_send_null(int channel) ++{ ++ u8 nullpkg[] = {0, 0, 0, 0}; ++ return dsi_vc_send_long(0, DSI_DT_NULL_PACKET, nullpkg, 4, 0); ++} ++EXPORT_SYMBOL(dsi_vc_send_null); ++ ++int dsi_vc_dcs_write_nosync(int channel, u8 *data, int len) ++{ ++ int r; ++ ++ BUG_ON(len == 0); ++ ++ if (len == 1) { ++ r = dsi_vc_send_short(channel, DSI_DT_DCS_SHORT_WRITE_0, ++ data[0], 0); ++ } else if (len == 2) { ++ r = dsi_vc_send_short(channel, DSI_DT_DCS_SHORT_WRITE_1, ++ data[0] | (data[1] << 8), 0); ++ } else { ++ /* 0x39 = DCS Long Write */ ++ r = dsi_vc_send_long(channel, DSI_DT_DCS_LONG_WRITE, ++ data, len, 0); ++ } ++ ++ return r; ++} ++EXPORT_SYMBOL(dsi_vc_dcs_write_nosync); ++ ++int dsi_vc_dcs_write(int channel, u8 *data, int len) ++{ ++ int r; ++ ++ r = dsi_vc_dcs_write_nosync(channel, data, len); ++ if (r) ++ return r; ++ ++ /* Some devices need time to process the msg in low power mode. ++ This also makes the write synchronous, and checks that ++ the peripheral is still alive */ ++ r = dsi_vc_send_bta_sync(channel); ++ ++ return r; ++} ++EXPORT_SYMBOL(dsi_vc_dcs_write); ++ ++int dsi_vc_dcs_read(int channel, u8 dcs_cmd, u8 *buf, int buflen) ++{ ++ u32 val; ++ u8 dt; ++ int r; ++ ++ if (dsi.debug_read) ++ DSSDBG("dsi_vc_dcs_read\n"); ++ ++ r = dsi_vc_send_short(channel, DSI_DT_DCS_READ, dcs_cmd, 0); ++ if (r) ++ return r; ++ ++ r = dsi_vc_send_bta_sync(channel); ++ if (r) ++ return r; ++ ++ if (REG_GET(DSI_VC_CTRL(channel), 20, 20) == 0) { /* RX_FIFO_NOT_EMPTY */ ++ DSSERR("RX fifo empty when trying to read.\n"); ++ return -EIO; ++ } ++ ++ val = dsi_read_reg(DSI_VC_SHORT_PACKET_HEADER(channel)); ++ if (dsi.debug_read) ++ DSSDBG("\theader: %08x\n", val); ++ dt = FLD_GET(val, 5, 0); ++ if (dt == DSI_DT_RX_ACK_WITH_ERR) { ++ u16 err = FLD_GET(val, 23, 8); ++ dsi_show_rx_ack_with_err(err); ++ return -1; ++ ++ } else if (dt == DSI_DT_RX_SHORT_READ_1) { ++ u8 data = FLD_GET(val, 15, 8); ++ if (dsi.debug_read) ++ DSSDBG("\tDCS short response, 1 byte: %02x\n", data); ++ ++ if (buflen < 1) ++ return -1; ++ ++ buf[0] = data; ++ ++ return 1; ++ } else if (dt == DSI_DT_RX_SHORT_READ_2) { ++ u16 data = FLD_GET(val, 23, 8); ++ if (dsi.debug_read) ++ DSSDBG("\tDCS short response, 2 byte: %04x\n", data); ++ ++ if (buflen < 2) ++ return -1; ++ ++ buf[0] = data & 0xff; ++ buf[1] = (data >> 8) & 0xff; ++ ++ return 2; ++ } else if (dt == DSI_DT_RX_DCS_LONG_READ) { ++ int w; ++ int len = FLD_GET(val, 23, 8); ++ if (dsi.debug_read) ++ DSSDBG("\tDCS long response, len %d\n", len); ++ ++ if (len > buflen) ++ return -1; ++ ++ /* two byte checksum ends the packet, not included in len */ ++ for (w = 0; w < len + 2;) { ++ int b; ++ val = dsi_read_reg(DSI_VC_SHORT_PACKET_HEADER(channel)); ++ if (dsi.debug_read) ++ DSSDBG("\t\t%02x %02x %02x %02x\n", ++ (val >> 0) & 0xff, ++ (val >> 8) & 0xff, ++ (val >> 16) & 0xff, ++ (val >> 24) & 0xff); ++ ++ for (b = 0; b < 4; ++b) { ++ if (w < len) ++ buf[w] = (val >> (b * 8)) & 0xff; ++ /* we discard the 2 byte checksum */ ++ ++w; ++ } ++ } ++ ++ return len; ++ ++ } else { ++ DSSERR("\tunknown datatype 0x%02x\n", dt); ++ return -1; ++ } ++} ++EXPORT_SYMBOL(dsi_vc_dcs_read); ++ ++ ++int dsi_vc_set_max_rx_packet_size(int channel, u16 len) ++{ ++ return dsi_vc_send_short(channel, DSI_DT_SET_MAX_RET_PKG_SIZE, ++ len, 0); ++} ++EXPORT_SYMBOL(dsi_vc_set_max_rx_packet_size); ++ ++ ++static int dsi_set_lp_rx_timeout(int ns, int x4, int x16) ++{ ++ u32 r; ++ unsigned long fck; ++ int ticks; ++ ++ /* ticks in DSI_FCK */ ++ ++ fck = dsi_fclk_rate(); ++ ticks = (fck / 1000 / 1000) * ns / 1000; ++ ++ if (ticks > 0x1fff) { ++ DSSERR("LP_TX_TO too high\n"); ++ return -EINVAL; ++ } ++ ++ r = dsi_read_reg(DSI_TIMING2); ++ r = FLD_MOD(r, 1, 15, 15); /* LP_RX_TO */ ++ r = FLD_MOD(r, x16, 14, 14); /* LP_RX_TO_X16 */ ++ r = FLD_MOD(r, x4, 13, 13); /* LP_RX_TO_X4 */ ++ r = FLD_MOD(r, ticks, 12, 0); /* LP_RX_COUNTER */ ++ dsi_write_reg(DSI_TIMING2, r); ++ ++ DSSDBG("LP_RX_TO %ld ns (%#x ticks)\n", ++ (ticks * (x16 ? 16 : 1) * (x4 ? 4 : 1) * 1000) / ++ (fck / 1000 / 1000), ++ ticks); ++ ++ return 0; ++} ++ ++static int dsi_set_ta_timeout(int ns, int x8, int x16) ++{ ++ u32 r; ++ unsigned long fck; ++ int ticks; ++ ++ /* ticks in DSI_FCK */ ++ ++ fck = dsi_fclk_rate(); ++ ticks = (fck / 1000 / 1000) * ns / 1000; ++ ++ if (ticks > 0x1fff) { ++ DSSERR("TA_TO too high\n"); ++ return -EINVAL; ++ } ++ ++ r = dsi_read_reg(DSI_TIMING1); ++ r = FLD_MOD(r, 1, 31, 31); /* TA_TO */ ++ r = FLD_MOD(r, x16, 30, 30); /* TA_TO_X16 */ ++ r = FLD_MOD(r, x8, 29, 29); /* TA_TO_X8 */ ++ r = FLD_MOD(r, ticks, 28, 16); /* TA_TO_COUNTER */ ++ dsi_write_reg(DSI_TIMING1, r); ++ ++ DSSDBG("TA_TO %ld ns (%#x ticks)\n", ++ (ticks * (x16 ? 16 : 1) * (x8 ? 8 : 1) * 1000) / ++ (fck / 1000 / 1000), ++ ticks); ++ ++ return 0; ++} ++ ++static int dsi_set_stop_state_counter(int ns, int x4, int x16) ++{ ++ u32 r; ++ unsigned long fck; ++ int ticks; ++ ++ /* ticks in DSI_FCK */ ++ ++ fck = dsi_fclk_rate(); ++ ticks = (fck / 1000 / 1000) * ns / 1000; ++ ++ if (ticks > 0x1fff) { ++ DSSERR("STOP_STATE_COUNTER_IO too high\n"); ++ return -EINVAL; ++ } ++ ++ r = dsi_read_reg(DSI_TIMING1); ++ r = FLD_MOD(r, 1, 15, 15); /* FORCE_TX_STOP_MODE_IO */ ++ r = FLD_MOD(r, x16, 14, 14); /* STOP_STATE_X16_IO */ ++ r = FLD_MOD(r, x4, 13, 13); /* STOP_STATE_X4_IO */ ++ r = FLD_MOD(r, ticks, 12, 0); /* STOP_STATE_COUNTER_IO */ ++ dsi_write_reg(DSI_TIMING1, r); ++ ++ DSSDBG("STOP_STATE_COUNTER %ld ns (%#x ticks)\n", ++ (ticks * (x16 ? 16 : 1) * (x4 ? 4 : 1) * 1000) / ++ (fck / 1000 / 1000), ++ ticks); ++ ++ return 0; ++} ++ ++static int dsi_set_hs_tx_timeout(int ns, int x4, int x16) ++{ ++ u32 r; ++ unsigned long fck; ++ int ticks; ++ ++ /* ticks in TxByteClkHS */ ++ ++ fck = dsi.ddr_clk / 4; ++ ticks = (fck / 1000 / 1000) * ns / 1000; ++ ++ if (ticks > 0x1fff) { ++ DSSERR("HS_TX_TO too high\n"); ++ return -EINVAL; ++ } ++ ++ r = dsi_read_reg(DSI_TIMING2); ++ r = FLD_MOD(r, 1, 31, 31); /* HS_TX_TO */ ++ r = FLD_MOD(r, x16, 30, 30); /* HS_TX_TO_X16 */ ++ r = FLD_MOD(r, x4, 29, 29); /* HS_TX_TO_X8 (4 really) */ ++ r = FLD_MOD(r, ticks, 28, 16); /* HS_TX_TO_COUNTER */ ++ dsi_write_reg(DSI_TIMING2, r); ++ ++ DSSDBG("HS_TX_TO %ld ns (%#x ticks)\n", ++ (ticks * (x16 ? 16 : 1) * (x4 ? 4 : 1) * 1000) / ++ (fck / 1000 / 1000), ++ ticks); ++ ++ return 0; ++} ++static int dsi_proto_config(struct omap_display *display) ++{ ++ u32 r; ++ int buswidth = 0; ++ ++ dsi_config_tx_fifo(DSI_FIFO_SIZE_128, ++ DSI_FIFO_SIZE_0, ++ DSI_FIFO_SIZE_0, ++ DSI_FIFO_SIZE_0); ++ ++ dsi_config_rx_fifo(DSI_FIFO_SIZE_128, ++ DSI_FIFO_SIZE_0, ++ DSI_FIFO_SIZE_0, ++ DSI_FIFO_SIZE_0); ++ ++ /* XXX what values for the timeouts? */ ++ dsi_set_stop_state_counter(1000, 0, 0); ++ ++ dsi_set_ta_timeout(50000, 1, 1); ++ ++ /* 3000ns * 16 */ ++ dsi_set_lp_rx_timeout(3000, 0, 1); ++ ++ /* 10000ns * 4 */ ++ dsi_set_hs_tx_timeout(10000, 1, 0); ++ ++ switch (display->ctrl->pixel_size) { ++ case 16: ++ buswidth = 0; ++ break; ++ case 18: ++ buswidth = 1; ++ break; ++ case 24: ++ buswidth = 2; ++ break; ++ default: ++ BUG(); ++ } ++ ++ r = dsi_read_reg(DSI_CTRL); ++ r = FLD_MOD(r, 1, 1, 1); /* CS_RX_EN */ ++ r = FLD_MOD(r, 1, 2, 2); /* ECC_RX_EN */ ++ r = FLD_MOD(r, 1, 3, 3); /* TX_FIFO_ARBITRATION */ ++ /* XXX what should the ratio be */ ++ r = FLD_MOD(r, 0, 4, 4); /* VP_CLK_RATIO, VP_PCLK = VP_CLK/2 */ ++ r = FLD_MOD(r, buswidth, 7, 6); /* VP_DATA_BUS_WIDTH */ ++ r = FLD_MOD(r, 0, 8, 8); /* VP_CLK_POL */ ++ r = FLD_MOD(r, 2, 13, 12); /* LINE_BUFFER, 2 lines */ ++ r = FLD_MOD(r, 1, 14, 14); /* TRIGGER_RESET_MODE */ ++ r = FLD_MOD(r, 1, 19, 19); /* EOT_ENABLE */ ++ r = FLD_MOD(r, 1, 24, 24); /* DCS_CMD_ENABLE */ ++ r = FLD_MOD(r, 0, 25, 25); /* DCS_CMD_CODE, 1=start, 0=continue */ ++ ++ dsi_write_reg(DSI_CTRL, r); ++ ++ /* we configure vc0 for L4 communication, and ++ * vc1 for dispc */ ++ dsi_vc_config(0); ++ dsi_vc_config_vp(1); ++ ++ /* set all vc targets to peripheral 0 */ ++ dsi.vc[0].dest_per = 0; ++ dsi.vc[1].dest_per = 0; ++ dsi.vc[2].dest_per = 0; ++ dsi.vc[3].dest_per = 0; ++ ++ return 0; ++} ++ ++static void dsi_proto_timings(void) ++{ ++ int tlpx_half, tclk_zero, tclk_prepare, tclk_trail; ++ int tclk_pre, tclk_post; ++ int ddr_clk_pre, ddr_clk_post; ++ u32 r; ++ ++ r = dsi_read_reg(DSI_DSIPHY_CFG1); ++ tlpx_half = FLD_GET(r, 22, 16); ++ tclk_trail = FLD_GET(r, 15, 8); ++ tclk_zero = FLD_GET(r, 7, 0); ++ ++ r = dsi_read_reg(DSI_DSIPHY_CFG2); ++ tclk_prepare = FLD_GET(r, 7, 0); ++ ++ /* min 8*UI */ ++ tclk_pre = 20; ++ /* min 60ns + 52*UI */ ++ tclk_post = ns2ddr(60) + 26; ++ ++ ddr_clk_pre = (tclk_pre + tlpx_half*2 + tclk_zero + tclk_prepare) / 4; ++ ddr_clk_post = (tclk_post + tclk_trail) / 4; ++ ++ r = dsi_read_reg(DSI_CLK_TIMING); ++ r = FLD_MOD(r, ddr_clk_pre, 15, 8); ++ r = FLD_MOD(r, ddr_clk_post, 7, 0); ++ dsi_write_reg(DSI_CLK_TIMING, r); ++ ++ DSSDBG("ddr_clk_pre %d, ddr_clk_post %d\n", ++ ddr_clk_pre, ++ ddr_clk_post); ++} ++ ++ ++#define DSI_DECL_VARS \ ++ int __dsi_cb = 0; u32 __dsi_cv = 0; ++ ++#define DSI_FLUSH(ch) \ ++ if (__dsi_cb > 0) { \ ++ /*DSSDBG("sending long packet %#010x\n", __dsi_cv);*/ \ ++ dsi_write_reg(DSI_VC_LONG_PACKET_PAYLOAD(ch), __dsi_cv); \ ++ __dsi_cb = __dsi_cv = 0; \ ++ } ++ ++#define DSI_PUSH(ch, data) \ ++ do { \ ++ __dsi_cv |= (data) << (__dsi_cb * 8); \ ++ /*DSSDBG("cv = %#010x, cb = %d\n", __dsi_cv, __dsi_cb);*/ \ ++ if (++__dsi_cb > 3) \ ++ DSI_FLUSH(ch); \ ++ } while (0) ++ ++static int dsi_update_screen_l4(struct omap_display *display, ++ int x, int y, int w, int h) ++{ ++ /* Note: supports only 24bit colors in 32bit container */ ++ int first = 1; ++ int fifo_stalls = 0; ++ int max_dsi_packet_size; ++ int max_data_per_packet; ++ int max_pixels_per_packet; ++ int pixels_left; ++ int bytespp = 3; ++ int scr_width; ++ u32 __iomem *data; ++ int start_offset; ++ int horiz_inc; ++ int current_x; ++ struct omap_overlay *ovl; ++ ++ debug_irq = 0; ++ ++ DSSDBG("dsi_update_screen_l4 (%d,%d %dx%d)\n", ++ x, y, w, h); ++ ++ ovl = display->manager->overlays[0]; ++ ++ if (ovl->info.color_mode != OMAP_DSS_COLOR_RGB24U) ++ return -EINVAL; ++ ++ if (display->ctrl->pixel_size != 24) ++ return -EINVAL; ++ ++ scr_width = ovl->info.screen_width; ++ data = ovl->info.vaddr; ++ ++ start_offset = scr_width * y + x; ++ horiz_inc = scr_width - w; ++ current_x = x; ++ ++ /* We need header(4) + DCSCMD(1) + pixels(numpix*bytespp) bytes ++ * in fifo */ ++ ++ /* When using CPU, max long packet size is TX buffer size */ ++ max_dsi_packet_size = dsi.vc[0].fifo_size * 32 * 4; ++ ++ /* we seem to get better perf if we divide the tx fifo to half, ++ and while the other half is being sent, we fill the other half ++ max_dsi_packet_size /= 2; */ ++ ++ max_data_per_packet = max_dsi_packet_size - 4 - 1; ++ ++ max_pixels_per_packet = max_data_per_packet / bytespp; ++ ++ DSSDBG("max_pixels_per_packet %d\n", max_pixels_per_packet); ++ ++ display->ctrl->setup_update(display, x, y, w, h); ++ ++ pixels_left = w * h; ++ ++ DSSDBG("total pixels %d\n", pixels_left); ++ ++ data += start_offset; ++ ++#ifdef DEBUG ++ dsi.update_region.x = x; ++ dsi.update_region.y = y; ++ dsi.update_region.w = w; ++ dsi.update_region.h = h; ++ dsi.update_region.bytespp = bytespp; ++#endif ++ ++ perf_mark_start(); ++ ++ while (pixels_left > 0) { ++ /* 0x2c = write_memory_start */ ++ /* 0x3c = write_memory_continue */ ++ u8 dcs_cmd = first ? 0x2c : 0x3c; ++ int pixels; ++ DSI_DECL_VARS; ++ first = 0; ++ ++#if 1 ++ /* using fifo not empty */ ++ /* TX_FIFO_NOT_EMPTY */ ++ while (FLD_GET(dsi_read_reg(DSI_VC_CTRL(0)), 5, 5)) { ++ udelay(1); ++ fifo_stalls++; ++ if (fifo_stalls > 0xfffff) { ++ DSSERR("fifo stalls overflow, pixels left %d\n", ++ pixels_left); ++ dsi_if_enable(0); ++ return -EIO; ++ } ++ } ++#elif 1 ++ /* using fifo emptiness */ ++ while ((REG_GET(DSI_TX_FIFO_VC_EMPTINESS, 7, 0)+1)*4 < ++ max_dsi_packet_size) { ++ fifo_stalls++; ++ if (fifo_stalls > 0xfffff) { ++ DSSERR("fifo stalls overflow, pixels left %d\n", ++ pixels_left); ++ dsi_if_enable(0); ++ return -EIO; ++ } ++ } ++#else ++ while ((REG_GET(DSI_TX_FIFO_VC_EMPTINESS, 7, 0)+1)*4 == 0) { ++ fifo_stalls++; ++ if (fifo_stalls > 0xfffff) { ++ DSSERR("fifo stalls overflow, pixels left %d\n", ++ pixels_left); ++ dsi_if_enable(0); ++ return -EIO; ++ } ++ } ++#endif ++ pixels = min(max_pixels_per_packet, pixels_left); ++ ++ pixels_left -= pixels; ++ ++ dsi_vc_write_long_header(0, DSI_DT_DCS_LONG_WRITE, ++ 1 + pixels * bytespp, 0); ++ ++ DSI_PUSH(0, dcs_cmd); ++ ++ while (pixels-- > 0) { ++ u32 pix = __raw_readl(data++); ++ ++ DSI_PUSH(0, (pix >> 16) & 0xff); ++ DSI_PUSH(0, (pix >> 8) & 0xff); ++ DSI_PUSH(0, (pix >> 0) & 0xff); ++ ++ current_x++; ++ if (current_x == x+w) { ++ current_x = x; ++ data += horiz_inc; ++ } ++ } ++ ++ DSI_FLUSH(0); ++ } ++ ++ perf_show("L4"); ++ ++ return 0; ++} ++ ++#if 0 ++static void dsi_clear_screen_l4(struct omap_display *display, ++ int x, int y, int w, int h) ++{ ++ int first = 1; ++ int fifo_stalls = 0; ++ int max_dsi_packet_size; ++ int max_data_per_packet; ++ int max_pixels_per_packet; ++ int pixels_left; ++ int bytespp = 3; ++ int pixnum; ++ ++ debug_irq = 0; ++ ++ DSSDBG("dsi_clear_screen_l4 (%d,%d %dx%d)\n", ++ x, y, w, h); ++ ++ if (display->ctrl->bpp != 24) ++ return -EINVAL; ++ ++ /* We need header(4) + DCSCMD(1) + pixels(numpix*bytespp) ++ * bytes in fifo */ ++ ++ /* When using CPU, max long packet size is TX buffer size */ ++ max_dsi_packet_size = dsi.vc[0].fifo_size * 32 * 4; ++ ++ max_data_per_packet = max_dsi_packet_size - 4 - 1; ++ ++ max_pixels_per_packet = max_data_per_packet / bytespp; ++ ++ enable_clocks(1); ++ ++ display->ctrl->setup_update(display, x, y, w, h); ++ ++ pixels_left = w * h; ++ ++ dsi.update_region.x = x; ++ dsi.update_region.y = y; ++ dsi.update_region.w = w; ++ dsi.update_region.h = h; ++ dsi.update_region.bytespp = bytespp; ++ ++ start_measuring(); ++ ++ pixnum = 0; ++ ++ while (pixels_left > 0) { ++ /* 0x2c = write_memory_start */ ++ /* 0x3c = write_memory_continue */ ++ u8 dcs_cmd = first ? 0x2c : 0x3c; ++ int pixels; ++ DSI_DECL_VARS; ++ first = 0; ++ ++ /* TX_FIFO_NOT_EMPTY */ ++ while (FLD_GET(dsi_read_reg(DSI_VC_CTRL(0)), 5, 5)) { ++ fifo_stalls++; ++ if (fifo_stalls > 0xfffff) { ++ DSSERR("fifo stalls overflow\n"); ++ dsi_if_enable(0); ++ enable_clocks(0); ++ return; ++ } ++ } ++ ++ pixels = min(max_pixels_per_packet, pixels_left); ++ ++ pixels_left -= pixels; ++ ++ dsi_vc_write_long_header(0, DSI_DT_DCS_LONG_WRITE, ++ 1 + pixels * bytespp, 0); ++ ++ DSI_PUSH(0, dcs_cmd); ++ ++ while (pixels-- > 0) { ++ u32 pix; ++ ++ pix = 0x000000; ++ ++ DSI_PUSH(0, (pix >> 16) & 0xff); ++ DSI_PUSH(0, (pix >> 8) & 0xff); ++ DSI_PUSH(0, (pix >> 0) & 0xff); ++ } ++ ++ DSI_FLUSH(0); ++ } ++ ++ enable_clocks(0); ++ ++ end_measuring("L4 CLEAR"); ++} ++#endif ++ ++static void dsi_setup_update_dispc(struct omap_display *display, ++ u16 x, u16 y, u16 w, u16 h) ++{ ++ DSSDBG("dsi_setup_update_dispc(%d,%d %dx%d)\n", ++ x, y, w, h); ++ ++#ifdef DEBUG ++ dsi.update_region.x = x; ++ dsi.update_region.y = y; ++ dsi.update_region.w = w; ++ dsi.update_region.h = h; ++ dsi.update_region.bytespp = 3; // XXX ++#endif ++ ++ dispc_setup_partial_planes(display, &x, &y, &w, &h); ++ ++ dispc_set_lcd_size(w, h); ++} ++ ++static void dsi_setup_autoupdate_dispc(struct omap_display *display) ++{ ++ u16 w, h; ++ ++ display->get_resolution(display, &w, &h); ++ ++#ifdef DEBUG ++ dsi.update_region.x = 0; ++ dsi.update_region.y = 0; ++ dsi.update_region.w = w; ++ dsi.update_region.h = h; ++ dsi.update_region.bytespp = 3; // XXX ++#endif ++ ++ /* the overlay settings may not have been applied, if we were in manual ++ * mode earlier, so do it here */ ++ display->manager->apply(display->manager); ++ ++ dispc_set_lcd_size(w, h); ++ ++ dsi.autoupdate_setup = 0; ++} ++ ++static void dsi_update_screen_dispc(struct omap_display *display, ++ u16 x, u16 y, u16 w, u16 h) ++{ ++ int bytespp = 3; ++ int total_len; ++ int line_packet_len; ++ u32 l; ++ ++ if (dsi.update_mode == OMAP_DSS_UPDATE_MANUAL) ++ DSSDBG("dsi_update_screen_dispc(%d,%d %dx%d)\n", ++ x, y, w, h); ++ ++ /* TODO: one packet could be longer, I think? Max is the line buffer */ ++ line_packet_len = w * bytespp + 1; /* 1 byte for DCS cmd */ ++ total_len = line_packet_len * h; ++ ++ display->ctrl->setup_update(display, x, y, w, h); ++ ++ if (0) ++ dsi_vc_print_status(1); ++ ++ perf_mark_start(); ++ ++ l = FLD_VAL(total_len, 23, 0); /* TE_SIZE */ ++ dsi_write_reg(DSI_VC_TE(1), l); ++ ++ dsi_vc_write_long_header(1, DSI_DT_DCS_LONG_WRITE, line_packet_len, 0); ++ ++ if (dsi.use_te) ++ l = FLD_MOD(l, 1, 30, 30); /* TE_EN */ ++ else ++ l = FLD_MOD(l, 1, 31, 31); /* TE_START */ ++ dsi_write_reg(DSI_VC_TE(1), l); ++ ++ dispc_enable_lcd_out(1); ++ ++ if (dsi.use_te) ++ dsi_vc_send_bta(1); ++} ++ ++static void framedone_callback(void *data, u32 mask) ++{ ++ if (dsi.framedone_scheduled) { ++ DSSERR("Framedone already scheduled. Bogus FRAMEDONE IRQ?\n"); ++ return; ++ } ++ ++ dsi.framedone_scheduled = 1; ++ ++ /* We get FRAMEDONE when DISPC has finished sending pixels and turns ++ * itself off. However, DSI still has the pixels in its buffers, and ++ * is sending the data. Thus we have to wait until we can do a new ++ * transfer or turn the clocks off. We do that in a separate work ++ * func. */ ++ queue_work(dsi.workqueue, &dsi.framedone_work); ++} ++ ++static void framedone_worker(struct work_struct *work) ++{ ++ u32 l; ++ unsigned long tmo; ++ int i = 0; ++ ++ l = REG_GET(DSI_VC_TE(1), 23, 0); /* TE_SIZE */ ++ ++ /* There shouldn't be much stuff in DSI buffers, if any, so we'll ++ * just busyloop */ ++ if (l > 0) { ++ tmo = jiffies + msecs_to_jiffies(50); ++ while (REG_GET(DSI_VC_TE(1), 23, 0) > 0) { /* TE_SIZE */ ++ i++; ++ if (time_after(jiffies, tmo)) { ++ DSSERR("timeout waiting TE_SIZE to zero\n"); ++ break; ++ } ++ cpu_relax(); ++ } ++ } ++ ++ if (REG_GET(DSI_VC_TE(1), 30, 30)) ++ DSSERR("TE_EN not zero\n"); ++ ++ if (REG_GET(DSI_VC_TE(1), 31, 31)) ++ DSSERR("TE_START not zero\n"); ++ ++ perf_show("DISPC"); ++ ++ if (dsi.update_mode == OMAP_DSS_UPDATE_MANUAL) ++ DSSDBG("FRAMEDONE\n"); ++ ++#if 0 ++ if (l) ++ DSSWARN("FRAMEDONE irq too early, %d bytes, %d loops\n", l, i); ++#else ++ if (l > 1024*3) ++ DSSWARN("FRAMEDONE irq too early, %d bytes, %d loops\n", l, i); ++#endif ++ ++#ifdef CONFIG_OMAP2_DSS_FAKE_VSYNC ++ dispc_fake_vsync_irq(); ++#endif ++ dsi.framedone_scheduled = 0; ++ ++ /* XXX check that fifo is not full. otherwise we would sleep and never ++ * get to process_cmd_fifo below */ ++ /* We check for target_update_mode, not update_mode. No reason to push ++ * new updates if we're turning auto update off */ ++ if (dsi.target_update_mode == OMAP_DSS_UPDATE_AUTO) ++ dsi_push_autoupdate(dsi.vc[1].display); ++ ++ atomic_set(&dsi.cmd_pending, 0); ++ dsi_process_cmd_fifo(NULL); ++} ++ ++static void dsi_start_auto_update(struct omap_display *display) ++{ ++ DSSDBG("starting auto update\n"); ++ ++ dsi.autoupdate_setup = 1; ++ ++ dsi_push_autoupdate(display); ++} ++ ++ ++ ++ ++ ++ ++ ++ ++ ++ ++ ++ ++ ++/* FIFO functions */ ++ ++static void dsi_signal_fifo_waiters(void) ++{ ++ if (atomic_read(&dsi.cmd_fifo_full) > 0) { ++ DSSDBG("SIGNALING: Fifo not full for waiter!\n"); ++ complete(&dsi.cmd_done); ++ atomic_dec(&dsi.cmd_fifo_full); ++ } ++} ++ ++/* returns 1 for async op, and 0 for sync op */ ++static int dsi_do_update(struct omap_display *display, ++ struct dsi_cmd_update *upd) ++{ ++ int r; ++ u16 x = upd->x, y = upd->y, w = upd->w, h = upd->h; ++ u16 dw, dh; ++ ++ if (dsi.update_mode == OMAP_DSS_UPDATE_DISABLED) ++ return 0; ++ ++ if (display->state != OMAP_DSS_DISPLAY_ACTIVE) ++ return 0; ++ ++ display->get_resolution(display, &dw, &dh); ++ if (x > dw || y > dh) ++ return 0; ++ ++ if (x + w > dw) ++ w = dw - x; ++ ++ if (y + h > dh) ++ h = dh - y; ++ ++ DSSDBGF("%d,%d %dx%d", x, y, w, h); ++ ++ perf_mark_setup(); ++ ++ if (display->manager->caps & OMAP_DSS_OVL_MGR_CAP_DISPC) { ++ dsi_setup_update_dispc(display, x, y, w, h); ++ dsi_update_screen_dispc(display, x, y, w, h); ++ return 1; ++ } else { ++ r = dsi_update_screen_l4(display, x, y, w, h); ++ if (r) ++ DSSERR("L4 update failed\n"); ++ return 0; ++ } ++} ++ ++/* returns 1 for async op, and 0 for sync op */ ++static int dsi_do_autoupdate(struct omap_display *display) ++{ ++ int r; ++ u16 w, h; ++ ++ if (dsi.update_mode == OMAP_DSS_UPDATE_DISABLED) ++ return 0; ++ ++ if (display->state != OMAP_DSS_DISPLAY_ACTIVE) ++ return 0; ++ ++ display->get_resolution(display, &w, &h); ++ ++ perf_mark_setup(); ++ ++ if (display->manager->caps & OMAP_DSS_OVL_MGR_CAP_DISPC) { ++ if (dsi.autoupdate_setup) ++ dsi_setup_autoupdate_dispc(display); ++ dsi_update_screen_dispc(display, 0, 0, w, h); ++ return 1; ++ } else { ++ r = dsi_update_screen_l4(display, 0, 0, w, h); ++ if (r) ++ DSSERR("L4 update failed\n"); ++ return 0; ++ } ++} ++ ++static void dsi_do_cmd_mem_read(struct omap_display *display, ++ struct dsi_cmd_mem_read *mem_read) ++{ ++ int r; ++ r = display->ctrl->memory_read(display, ++ mem_read->buf, ++ mem_read->size, ++ mem_read->x, ++ mem_read->y, ++ mem_read->w, ++ mem_read->h); ++ ++ *mem_read->ret_size = (size_t)r; ++ complete(mem_read->completion); ++} ++ ++static void dsi_do_cmd_test(struct omap_display *display, ++ struct dsi_cmd_test *test) ++{ ++ int r = 0; ++ ++ DSSDBGF(""); ++ ++ if (display->state != OMAP_DSS_DISPLAY_ACTIVE) ++ return; ++ ++ /* run test first in low speed mode */ ++ dsi_vc_enable_hs(0, 0); ++ ++ if (display->ctrl->run_test) { ++ r = display->ctrl->run_test(display, test->test_num); ++ if (r) ++ goto end; ++ } ++ ++ if (display->panel->run_test) { ++ r = display->panel->run_test(display, test->test_num); ++ if (r) ++ goto end; ++ } ++ ++ /* then in high speed */ ++ dsi_vc_enable_hs(0, 1); ++ ++ if (display->ctrl->run_test) { ++ r = display->ctrl->run_test(display, test->test_num); ++ if (r) ++ goto end; ++ } ++ ++ if (display->panel->run_test) ++ r = display->panel->run_test(display, test->test_num); ++ ++end: ++ dsi_vc_enable_hs(0, 1); ++ ++ *test->result = r; ++ complete(test->completion); ++ ++ DSSDBG("test end\n"); ++} ++ ++static void dsi_do_cmd_set_te(struct omap_display *display, bool enable) ++{ ++ dsi.use_te = enable; ++ ++ if (display->state != OMAP_DSS_DISPLAY_ACTIVE) ++ return; ++ ++ display->ctrl->enable_te(display, enable); ++ ++ if (enable) { ++ /* disable LP_RX_TO, so that we can receive TE. ++ * Time to wait for TE is longer than the timer allows */ ++ REG_FLD_MOD(DSI_TIMING2, 0, 15, 15); /* LP_RX_TO */ ++ } else { ++ REG_FLD_MOD(DSI_TIMING2, 1, 15, 15); /* LP_RX_TO */ ++ } ++} ++ ++static void dsi_do_cmd_set_update_mode(struct omap_display *display, ++ enum omap_dss_update_mode mode) ++{ ++ dsi.update_mode = mode; ++ ++ if (display->state != OMAP_DSS_DISPLAY_ACTIVE) ++ return; ++ ++ if (mode == OMAP_DSS_UPDATE_AUTO) ++ dsi_start_auto_update(display); ++} ++ ++static void dsi_process_cmd_fifo(struct work_struct *work) ++{ ++ int len; ++ struct dsi_cmd_item p; ++ unsigned long flags; ++ struct omap_display *display; ++ int exit = 0; ++ ++ if (dsi.debug_process) ++ DSSDBGF(""); ++ ++ if (atomic_cmpxchg(&dsi.cmd_pending, 0, 1) == 1) { ++ if (dsi.debug_process) ++ DSSDBG("cmd pending, skip process\n"); ++ return; ++ } ++ ++ while (!exit) { ++ spin_lock_irqsave(dsi.cmd_fifo->lock, flags); ++ ++ len = __kfifo_get(dsi.cmd_fifo, (unsigned char *)&p, ++ sizeof(p)); ++ if (len == 0) { ++ if (dsi.debug_process) ++ DSSDBG("nothing more in fifo, atomic clear\n"); ++ atomic_set(&dsi.cmd_pending, 0); ++ spin_unlock_irqrestore(dsi.cmd_fifo->lock, flags); ++ break; ++ } ++ ++ spin_unlock_irqrestore(dsi.cmd_fifo->lock, flags); ++ ++ BUG_ON(len != sizeof(p)); ++ ++ display = p.display; ++ ++ if (dsi.debug_process) ++ DSSDBG("processing cmd %d\n", p.cmd); ++ ++ switch (p.cmd) { ++ case DSI_CMD_UPDATE: ++ if (dsi_do_update(display, &p.u.r)) { ++ if (dsi.debug_process) ++ DSSDBG("async update\n"); ++ exit = 1; ++ } else { ++ if (dsi.debug_process) ++ DSSDBG("sync update\n"); ++ } ++ break; ++ ++ case DSI_CMD_AUTOUPDATE: ++ if (dsi_do_autoupdate(display)) { ++ if (dsi.debug_process) ++ DSSDBG("async autoupdate\n"); ++ exit = 1; ++ } else { ++ if (dsi.debug_process) ++ DSSDBG("sync autoupdate\n"); ++ } ++ break; ++ ++ case DSI_CMD_SYNC: ++ if (dsi.debug_process) ++ DSSDBG("Signaling SYNC done!\n"); ++ complete(p.u.sync); ++ break; ++ ++ case DSI_CMD_MEM_READ: ++ dsi_do_cmd_mem_read(display, &p.u.mem_read); ++ break; ++ ++ case DSI_CMD_TEST: ++ dsi_do_cmd_test(display, &p.u.test); ++ break; ++ ++ case DSI_CMD_SET_TE: ++ dsi_do_cmd_set_te(display, p.u.te); ++ break; ++ ++ case DSI_CMD_SET_UPDATE_MODE: ++ dsi_do_cmd_set_update_mode(display, p.u.update_mode); ++ break; ++ ++ case DSI_CMD_SET_ROTATE: ++ display->ctrl->set_rotate(display, p.u.rotate); ++ if (dsi.update_mode == OMAP_DSS_UPDATE_AUTO) ++ dsi.autoupdate_setup = 1; ++ break; ++ ++ case DSI_CMD_SET_MIRROR: ++ display->ctrl->set_mirror(display, p.u.mirror); ++ break; ++ ++ default: ++ BUG(); ++ } ++ } ++ ++ if (dsi.debug_process) ++ DSSDBG("exit dsi_process_cmd_fifo\n"); ++ ++ dsi_signal_fifo_waiters(); ++} ++ ++static void dsi_push_cmd(struct dsi_cmd_item *p) ++{ ++ int ret; ++ ++ if (dsi.debug_process) ++ DSSDBGF(""); ++ ++ while (1) { ++ unsigned long flags; ++ unsigned avail, used; ++ ++ spin_lock_irqsave(dsi.cmd_fifo->lock, flags); ++ used = __kfifo_len(dsi.cmd_fifo) / sizeof(struct dsi_cmd_item); ++ avail = DSI_CMD_FIFO_LEN - used; ++ ++ if (dsi.debug_process) ++ DSSDBG("%u/%u items left in fifo\n", avail, used); ++ ++ if (avail == 0) { ++ if (dsi.debug_process) ++ DSSDBG("cmd fifo full, waiting...\n"); ++ spin_unlock_irqrestore(dsi.cmd_fifo->lock, flags); ++ atomic_inc(&dsi.cmd_fifo_full); ++ wait_for_completion(&dsi.cmd_done); ++ if (dsi.debug_process) ++ DSSDBG("cmd fifo not full, woke up\n"); ++ continue; ++ } ++ ++ ret = __kfifo_put(dsi.cmd_fifo, (unsigned char *)p, ++ sizeof(*p)); ++ ++ spin_unlock_irqrestore(dsi.cmd_fifo->lock, flags); ++ ++ BUG_ON(ret != sizeof(*p)); ++ ++ break; ++ } ++ ++ queue_work(dsi.workqueue, &dsi.process_work); ++} ++ ++static void dsi_push_update(struct omap_display *display, ++ int x, int y, int w, int h) ++{ ++ struct dsi_cmd_item p; ++ ++ p.display = display; ++ p.cmd = DSI_CMD_UPDATE; ++ ++ p.u.r.x = x; ++ p.u.r.y = y; ++ p.u.r.w = w; ++ p.u.r.h = h; ++ ++ DSSDBG("pushing UPDATE %d,%d %dx%d\n", x, y, w, h); ++ ++ dsi_push_cmd(&p); ++} ++ ++static void dsi_push_autoupdate(struct omap_display *display) ++{ ++ struct dsi_cmd_item p; ++ ++ p.display = display; ++ p.cmd = DSI_CMD_AUTOUPDATE; ++ ++ dsi_push_cmd(&p); ++} ++ ++static void dsi_push_sync(struct omap_display *display, ++ struct completion *sync_comp) ++{ ++ struct dsi_cmd_item p; ++ ++ p.display = display; ++ p.cmd = DSI_CMD_SYNC; ++ p.u.sync = sync_comp; ++ ++ DSSDBG("pushing SYNC\n"); ++ ++ dsi_push_cmd(&p); ++} ++ ++static void dsi_push_mem_read(struct omap_display *display, ++ struct dsi_cmd_mem_read *mem_read) ++{ ++ struct dsi_cmd_item p; ++ ++ p.display = display; ++ p.cmd = DSI_CMD_MEM_READ; ++ p.u.mem_read = *mem_read; ++ ++ DSSDBG("pushing MEM_READ\n"); ++ ++ dsi_push_cmd(&p); ++} ++ ++static void dsi_push_test(struct omap_display *display, int test_num, ++ int *result, struct completion *completion) ++{ ++ struct dsi_cmd_item p; ++ ++ p.display = display; ++ p.cmd = DSI_CMD_TEST; ++ p.u.test.test_num = test_num; ++ p.u.test.result = result; ++ p.u.test.completion = completion; ++ ++ DSSDBG("pushing TEST\n"); ++ ++ dsi_push_cmd(&p); ++} ++ ++static void dsi_push_set_te(struct omap_display *display, bool enable) ++{ ++ struct dsi_cmd_item p; ++ ++ p.display = display; ++ p.cmd = DSI_CMD_SET_TE; ++ p.u.te = enable; ++ ++ DSSDBG("pushing SET_TE\n"); ++ ++ dsi_push_cmd(&p); ++} ++ ++static void dsi_push_set_update_mode(struct omap_display *display, ++ enum omap_dss_update_mode mode) ++{ ++ struct dsi_cmd_item p; ++ ++ p.display = display; ++ p.cmd = DSI_CMD_SET_UPDATE_MODE; ++ p.u.update_mode = mode; ++ ++ DSSDBG("pushing SET_UPDATE_MODE\n"); ++ ++ dsi_push_cmd(&p); ++} ++ ++static void dsi_push_set_rotate(struct omap_display *display, int rotate) ++{ ++ struct dsi_cmd_item p; ++ ++ p.display = display; ++ p.cmd = DSI_CMD_SET_ROTATE; ++ p.u.rotate = rotate; ++ ++ DSSDBG("pushing SET_ROTATE\n"); ++ ++ dsi_push_cmd(&p); ++} ++ ++static void dsi_push_set_mirror(struct omap_display *display, int mirror) ++{ ++ struct dsi_cmd_item p; ++ ++ p.display = display; ++ p.cmd = DSI_CMD_SET_MIRROR; ++ p.u.mirror = mirror; ++ ++ DSSDBG("pushing SET_MIRROR\n"); ++ ++ dsi_push_cmd(&p); ++} ++ ++static int dsi_wait_sync(struct omap_display *display) ++{ ++ long wait = msecs_to_jiffies(60000); ++ struct completion compl; ++ ++ DSSDBGF(""); ++ ++ init_completion(&compl); ++ dsi_push_sync(display, &compl); ++ ++ DSSDBG("Waiting for SYNC to happen...\n"); ++ wait = wait_for_completion_timeout(&compl, wait); ++ DSSDBG("Released from SYNC\n"); ++ ++ if (wait == 0) { ++ DSSERR("timeout waiting sync\n"); ++ return -ETIME; ++ } ++ ++ return 0; ++} ++ ++ ++ ++ ++ ++ ++ ++ ++ ++ ++ ++ ++/* Display funcs */ ++ ++static int dsi_display_init_dispc(struct omap_display *display) ++{ ++ int r; ++ ++ r = omap_dispc_register_isr(framedone_callback, NULL, ++ DISPC_IRQ_FRAMEDONE); ++ if (r) { ++ DSSERR("can't get FRAMEDONE irq\n"); ++ return r; ++ } ++ ++ dispc_set_lcd_display_type(OMAP_DSS_LCD_DISPLAY_TFT); ++ ++ dispc_set_parallel_interface_mode(OMAP_DSS_PARALLELMODE_DSI); ++ dispc_enable_fifohandcheck(1); ++ ++ dispc_set_tft_data_lines(display->ctrl->pixel_size); ++ ++ { ++ struct omap_video_timings timings = { ++ .hsw = 1, ++ .hfp = 1, ++ .hbp = 1, ++ .vsw = 1, ++ .vfp = 0, ++ .vbp = 0, ++ }; ++ ++ dispc_set_lcd_timings(&timings); ++ } ++ ++ return 0; ++} ++ ++static void dsi_display_uninit_dispc(struct omap_display *display) ++{ ++ omap_dispc_unregister_isr(framedone_callback, NULL, ++ DISPC_IRQ_FRAMEDONE); ++} ++ ++static int dsi_display_init_dsi(struct omap_display *display) ++{ ++ struct dsi_clock_info cinfo; ++ int r; ++ ++ _dsi_print_reset_status(); ++ ++ r = dsi_pll_init(1, 0); ++ if (r) ++ goto err0; ++ ++ r = dsi_pll_calc_ddrfreq(display->hw_config.u.dsi.ddr_clk_hz, &cinfo); ++ if (r) ++ goto err1; ++ ++ r = dsi_pll_program(&cinfo); ++ if (r) ++ goto err1; ++ ++ DSSDBG("PLL OK\n"); ++ ++ r = dsi_complexio_init(display); ++ if (r) ++ goto err1; ++ ++ _dsi_print_reset_status(); ++ ++ dsi_proto_timings(); ++ dsi_set_lp_clk_divisor(); ++ ++ if (1) ++ _dsi_print_reset_status(); ++ ++ r = dsi_proto_config(display); ++ if (r) ++ goto err2; ++ ++ /* enable interface */ ++ dsi_vc_enable(0, 1); ++ dsi_vc_enable(1, 1); ++ dsi_if_enable(1); ++ dsi_force_tx_stop_mode_io(); ++ ++ if (display->ctrl && display->ctrl->enable) { ++ r = display->ctrl->enable(display); ++ if (r) ++ goto err3; ++ } ++ ++ if (display->panel && display->panel->enable) { ++ r = display->panel->enable(display); ++ if (r) ++ goto err4; ++ } ++ ++ /* enable high-speed after initial config */ ++ dsi_vc_enable_hs(0, 1); ++ ++ return 0; ++err4: ++ if (display->ctrl && display->ctrl->disable) ++ display->ctrl->disable(display); ++err3: ++ dsi_if_enable(0); ++err2: ++ dsi_complexio_uninit(); ++err1: ++ dsi_pll_uninit(); ++err0: ++ return r; ++} ++ ++static void dsi_display_uninit_dsi(struct omap_display *display) ++{ ++ if (display->panel && display->panel->disable) ++ display->panel->disable(display); ++ if (display->ctrl && display->ctrl->disable) ++ display->ctrl->disable(display); ++ ++ dsi_complexio_uninit(); ++ dsi_pll_uninit(); ++} ++ ++static int dsi_core_init(void) ++{ ++ /* Autoidle */ ++ REG_FLD_MOD(DSI_SYSCONFIG, 1, 0, 0); ++ ++ /* ENWAKEUP */ ++ REG_FLD_MOD(DSI_SYSCONFIG, 1, 2, 2); ++ ++ /* SIDLEMODE smart-idle */ ++ REG_FLD_MOD(DSI_SYSCONFIG, 2, 4, 3); ++ ++ _dsi_initialize_irq(); ++ ++ return 0; ++} ++ ++static int dsi_display_enable(struct omap_display *display) ++{ ++ int r = 0; ++ ++ DSSDBG("dsi_display_enable\n"); ++ ++ mutex_lock(&dsi.lock); ++ ++ if (display->state != OMAP_DSS_DISPLAY_DISABLED) { ++ DSSERR("display already enabled\n"); ++ r = -EINVAL; ++ goto err0; ++ } ++ ++ enable_clocks(1); ++ dsi_enable_pll_clock(1); ++ ++ r = _dsi_reset(); ++ if (r) ++ return r; ++ ++ dsi_core_init(); ++ ++ r = dsi_display_init_dispc(display); ++ if (r) ++ goto err1; ++ ++ r = dsi_display_init_dsi(display); ++ if (r) ++ goto err2; ++ ++ display->state = OMAP_DSS_DISPLAY_ACTIVE; ++ ++ if (dsi.use_te) ++ dsi_push_set_te(display, 1); ++ ++ dsi_push_set_update_mode(display, dsi.user_update_mode); ++ dsi.target_update_mode = dsi.user_update_mode; ++ ++ mutex_unlock(&dsi.lock); ++ ++ return dsi_wait_sync(display); ++ ++err2: ++ dsi_display_uninit_dispc(display); ++err1: ++ enable_clocks(0); ++ dsi_enable_pll_clock(0); ++err0: ++ mutex_unlock(&dsi.lock); ++ DSSDBG("dsi_display_enable FAILED\n"); ++ return r; ++} ++ ++static void dsi_display_disable(struct omap_display *display) ++{ ++ DSSDBG("dsi_display_disable\n"); ++ ++ mutex_lock(&dsi.lock); ++ ++ if (display->state == OMAP_DSS_DISPLAY_DISABLED || ++ display->state == OMAP_DSS_DISPLAY_SUSPENDED) ++ goto end; ++ ++ if (dsi.target_update_mode != OMAP_DSS_UPDATE_DISABLED) { ++ dsi_push_set_update_mode(display, OMAP_DSS_UPDATE_DISABLED); ++ dsi.target_update_mode = OMAP_DSS_UPDATE_DISABLED; ++ } ++ ++ dsi_wait_sync(display); ++ ++ display->state = OMAP_DSS_DISPLAY_DISABLED; ++ ++ dsi_display_uninit_dispc(display); ++ ++ dsi_display_uninit_dsi(display); ++ ++ enable_clocks(0); ++ dsi_enable_pll_clock(0); ++end: ++ mutex_unlock(&dsi.lock); ++} ++ ++static int dsi_display_suspend(struct omap_display *display) ++{ ++ DSSDBG("dsi_display_suspend\n"); ++ ++ dsi_display_disable(display); ++ ++ display->state = OMAP_DSS_DISPLAY_SUSPENDED; ++ ++ return 0; ++} ++ ++static int dsi_display_resume(struct omap_display *display) ++{ ++ DSSDBG("dsi_display_resume\n"); ++ ++ display->state = OMAP_DSS_DISPLAY_DISABLED; ++ return dsi_display_enable(display); ++} ++ ++static int dsi_display_update(struct omap_display *display, ++ u16 x, u16 y, u16 w, u16 h) ++{ ++ DSSDBG("dsi_display_update(%d,%d %dx%d)\n", x, y, w, h); ++ ++ if (w == 0 || h == 0) ++ return 0; ++ ++ mutex_lock(&dsi.lock); ++ ++ if (dsi.target_update_mode == OMAP_DSS_UPDATE_MANUAL) ++ dsi_push_update(display, x, y, w, h); ++ /* XXX else return error? */ ++ ++ mutex_unlock(&dsi.lock); ++ ++ return 0; ++} ++ ++static int dsi_display_sync(struct omap_display *display) ++{ ++ DSSDBGF(""); ++ return dsi_wait_sync(display); ++} ++ ++static int dsi_display_set_update_mode(struct omap_display *display, ++ enum omap_dss_update_mode mode) ++{ ++ DSSDBGF("%d", mode); ++ ++ mutex_lock(&dsi.lock); ++ ++ if (dsi.target_update_mode != mode) { ++ dsi_push_set_update_mode(display, mode); ++ ++ dsi.target_update_mode = mode; ++ dsi.user_update_mode = mode; ++ } ++ ++ mutex_unlock(&dsi.lock); ++ ++ return dsi_wait_sync(display); ++} ++ ++static enum omap_dss_update_mode dsi_display_get_update_mode( ++ struct omap_display *display) ++{ ++ return dsi.update_mode; ++} ++ ++static int dsi_display_enable_te(struct omap_display *display, bool enable) ++{ ++ DSSDBGF("%d", enable); ++ ++ if (!display->ctrl->enable_te) ++ return -ENOENT; ++ ++ dsi_push_set_te(display, enable); ++ ++ return dsi_wait_sync(display); ++} ++ ++static int dsi_display_get_te(struct omap_display *display) ++{ ++ return dsi.use_te; ++} ++ ++ ++ ++static int dsi_display_set_rotate(struct omap_display *display, u8 rotate) ++{ ++ DSSDBGF("%d", rotate); ++ ++ if (!display->ctrl->set_rotate || !display->ctrl->get_rotate) ++ return -EINVAL; ++ ++ dsi_push_set_rotate(display, rotate); ++ ++ return dsi_wait_sync(display); ++} ++ ++static u8 dsi_display_get_rotate(struct omap_display *display) ++{ ++ if (!display->ctrl->set_rotate || !display->ctrl->get_rotate) ++ return 0; ++ ++ return display->ctrl->get_rotate(display); ++} ++ ++static int dsi_display_set_mirror(struct omap_display *display, bool mirror) ++{ ++ DSSDBGF("%d", mirror); ++ ++ if (!display->ctrl->set_mirror || !display->ctrl->get_mirror) ++ return -EINVAL; ++ ++ dsi_push_set_mirror(display, mirror); ++ ++ return dsi_wait_sync(display); ++} ++ ++static bool dsi_display_get_mirror(struct omap_display *display) ++{ ++ if (!display->ctrl->set_mirror || !display->ctrl->get_mirror) ++ return 0; ++ ++ return display->ctrl->get_mirror(display); ++} ++ ++static int dsi_display_run_test(struct omap_display *display, int test_num) ++{ ++ long wait = msecs_to_jiffies(60000); ++ struct completion compl; ++ int result; ++ ++ if (display->state != OMAP_DSS_DISPLAY_ACTIVE) ++ return -EIO; ++ ++ DSSDBGF("%d", test_num); ++ ++ init_completion(&compl); ++ ++ dsi_push_test(display, test_num, &result, &compl); ++ ++ DSSDBG("Waiting for SYNC to happen...\n"); ++ wait = wait_for_completion_timeout(&compl, wait); ++ DSSDBG("Released from SYNC\n"); ++ ++ if (wait == 0) { ++ DSSERR("timeout waiting test sync\n"); ++ return -ETIME; ++ } ++ ++ return result; ++} ++ ++static int dsi_display_memory_read(struct omap_display *display, ++ void *buf, size_t size, ++ u16 x, u16 y, u16 w, u16 h) ++{ ++ long wait = msecs_to_jiffies(60000); ++ struct completion compl; ++ struct dsi_cmd_mem_read mem_read; ++ size_t ret_size; ++ ++ DSSDBGF(""); ++ ++ if (!display->ctrl->memory_read) ++ return -EINVAL; ++ ++ if (display->state != OMAP_DSS_DISPLAY_ACTIVE) ++ return -EIO; ++ ++ init_completion(&compl); ++ ++ mem_read.x = x; ++ mem_read.y = y; ++ mem_read.w = w; ++ mem_read.h = h; ++ mem_read.buf = buf; ++ mem_read.size = size; ++ mem_read.ret_size = &ret_size; ++ mem_read.completion = &compl; ++ ++ dsi_push_mem_read(display, &mem_read); ++ ++ DSSDBG("Waiting for SYNC to happen...\n"); ++ wait = wait_for_completion_timeout(&compl, wait); ++ DSSDBG("Released from SYNC\n"); ++ ++ if (wait == 0) { ++ DSSERR("timeout waiting mem read sync\n"); ++ return -ETIME; ++ } ++ ++ return ret_size; ++} ++ ++static void dsi_configure_overlay(struct omap_overlay *ovl) ++{ ++ unsigned low, high, size; ++ enum omap_burst_size burst; ++ enum omap_plane plane = ovl->id; ++ ++ burst = OMAP_DSS_BURST_16x32; ++ size = 16 * 32 / 8; ++ ++ dispc_set_burst_size(plane, burst); ++ ++ high = dispc_get_plane_fifo_size(plane) - size; ++ low = 0; ++ dispc_setup_plane_fifo(plane, low, high); ++} ++ ++void dsi_init_display(struct omap_display *display) ++{ ++ DSSDBG("DSI init\n"); ++ ++ display->enable = dsi_display_enable; ++ display->disable = dsi_display_disable; ++ display->suspend = dsi_display_suspend; ++ display->resume = dsi_display_resume; ++ display->update = dsi_display_update; ++ display->sync = dsi_display_sync; ++ display->set_update_mode = dsi_display_set_update_mode; ++ display->get_update_mode = dsi_display_get_update_mode; ++ display->enable_te = dsi_display_enable_te; ++ display->get_te = dsi_display_get_te; ++ ++ display->get_rotate = dsi_display_get_rotate; ++ display->set_rotate = dsi_display_set_rotate; ++ ++ display->get_mirror = dsi_display_get_mirror; ++ display->set_mirror = dsi_display_set_mirror; ++ ++ display->run_test = dsi_display_run_test; ++ display->memory_read = dsi_display_memory_read; ++ ++ display->configure_overlay = dsi_configure_overlay; ++ ++ display->caps = OMAP_DSS_DISPLAY_CAP_MANUAL_UPDATE; ++ ++ dsi.vc[0].display = display; ++ dsi.vc[1].display = display; ++} ++ ++int dsi_init(void) ++{ ++ u32 rev; ++ ++ spin_lock_init(&dsi.cmd_lock); ++ dsi.cmd_fifo = kfifo_alloc( ++ DSI_CMD_FIFO_LEN * sizeof(struct dsi_cmd_item), ++ GFP_KERNEL, ++ &dsi.cmd_lock); ++ ++ init_completion(&dsi.cmd_done); ++ atomic_set(&dsi.cmd_fifo_full, 0); ++ atomic_set(&dsi.cmd_pending, 0); ++ ++ init_completion(&dsi.bta_completion); ++ ++ dsi.workqueue = create_singlethread_workqueue("dsi"); ++ INIT_WORK(&dsi.framedone_work, framedone_worker); ++ INIT_WORK(&dsi.process_work, dsi_process_cmd_fifo); ++ ++ mutex_init(&dsi.lock); ++ ++ dsi.target_update_mode = OMAP_DSS_UPDATE_DISABLED; ++ dsi.user_update_mode = OMAP_DSS_UPDATE_DISABLED; ++ ++ dsi.base = ioremap(DSI_BASE, DSI_SZ_REGS); ++ if (!dsi.base) { ++ DSSERR("can't ioremap DSI\n"); ++ return -ENOMEM; ++ } ++ ++ enable_clocks(1); ++ ++ rev = dsi_read_reg(DSI_REVISION); ++ printk(KERN_INFO "OMAP DSI rev %d.%d\n", ++ FLD_GET(rev, 7, 4), FLD_GET(rev, 3, 0)); ++ ++ enable_clocks(0); ++ ++ return 0; ++} ++ ++void dsi_exit(void) ++{ ++ flush_workqueue(dsi.workqueue); ++ destroy_workqueue(dsi.workqueue); ++ ++ iounmap(dsi.base); ++ ++ kfifo_free(dsi.cmd_fifo); ++ ++ DSSDBG("omap_dsi_exit\n"); ++} ++ +diff --git a/drivers/video/omap2/dss/dss.c b/drivers/video/omap2/dss/dss.c +new file mode 100644 +index 0000000..adc1f34 +--- /dev/null ++++ b/drivers/video/omap2/dss/dss.c +@@ -0,0 +1,345 @@ ++/* ++ * linux/drivers/video/omap2/dss/dss.c ++ * ++ * Copyright (C) 2009 Nokia Corporation ++ * Author: Tomi Valkeinen <tomi.valkeinen@nokia.com> ++ * ++ * Some code and ideas taken from drivers/video/omap/ driver ++ * by Imre Deak. ++ * ++ * This program is free software; you can redistribute it and/or modify it ++ * under the terms of the GNU General Public License version 2 as published by ++ * the Free Software Foundation. ++ * ++ * This program is distributed in the hope that it will be useful, but WITHOUT ++ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or ++ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for ++ * more details. ++ * ++ * You should have received a copy of the GNU General Public License along with ++ * this program. If not, see <http://www.gnu.org/licenses/>. ++ */ ++ ++#define DSS_SUBSYS_NAME "DSS" ++ ++#include <linux/kernel.h> ++#include <linux/io.h> ++#include <linux/err.h> ++#include <linux/delay.h> ++#include <linux/interrupt.h> ++#include <linux/seq_file.h> ++ ++#include <mach/display.h> ++#include "dss.h" ++ ++#define DSS_BASE 0x48050000 ++ ++#define DSS_SZ_REGS SZ_512 ++ ++struct dss_reg { ++ u16 idx; ++}; ++ ++#define DSS_REG(idx) ((const struct dss_reg) { idx }) ++ ++#define DSS_REVISION DSS_REG(0x0000) ++#define DSS_SYSCONFIG DSS_REG(0x0010) ++#define DSS_SYSSTATUS DSS_REG(0x0014) ++#define DSS_IRQSTATUS DSS_REG(0x0018) ++#define DSS_CONTROL DSS_REG(0x0040) ++#define DSS_SDI_CONTROL DSS_REG(0x0044) ++#define DSS_PLL_CONTROL DSS_REG(0x0048) ++#define DSS_SDI_STATUS DSS_REG(0x005C) ++ ++#define REG_GET(idx, start, end) \ ++ FLD_GET(dss_read_reg(idx), start, end) ++ ++#define REG_FLD_MOD(idx, val, start, end) \ ++ dss_write_reg(idx, FLD_MOD(dss_read_reg(idx), val, start, end)) ++ ++static struct { ++ void __iomem *base; ++ ++ u32 ctx[DSS_SZ_REGS / sizeof(u32)]; ++} dss; ++ ++static int _omap_dss_wait_reset(void); ++ ++static inline void dss_write_reg(const struct dss_reg idx, u32 val) ++{ ++ __raw_writel(val, dss.base + idx.idx); ++} ++ ++static inline u32 dss_read_reg(const struct dss_reg idx) ++{ ++ return __raw_readl(dss.base + idx.idx); ++} ++ ++#define SR(reg) \ ++ dss.ctx[(DSS_##reg).idx / sizeof(u32)] = dss_read_reg(DSS_##reg) ++#define RR(reg) \ ++ dss_write_reg(DSS_##reg, dss.ctx[(DSS_##reg).idx / sizeof(u32)]) ++ ++void dss_save_context(void) ++{ ++ if (cpu_is_omap24xx()) ++ return; ++ ++ SR(SYSCONFIG); ++ SR(CONTROL); ++ ++#ifdef CONFIG_OMAP2_DSS_SDI ++ SR(SDI_CONTROL); ++ SR(PLL_CONTROL); ++#endif ++} ++ ++void dss_restore_context(void) ++{ ++ if (_omap_dss_wait_reset()) ++ DSSERR("DSS not coming out of reset after sleep\n"); ++ ++ RR(SYSCONFIG); ++ RR(CONTROL); ++ ++#ifdef CONFIG_OMAP2_DSS_SDI ++ RR(SDI_CONTROL); ++ RR(PLL_CONTROL); ++#endif ++} ++ ++#undef SR ++#undef RR ++ ++void dss_sdi_init(u8 datapairs) ++{ ++ u32 l; ++ ++ BUG_ON(datapairs > 3 || datapairs < 1); ++ ++ l = dss_read_reg(DSS_SDI_CONTROL); ++ l = FLD_MOD(l, 0xf, 19, 15); /* SDI_PDIV */ ++ l = FLD_MOD(l, datapairs-1, 3, 2); /* SDI_PRSEL */ ++ l = FLD_MOD(l, 2, 1, 0); /* SDI_BWSEL */ ++ dss_write_reg(DSS_SDI_CONTROL, l); ++ ++ l = dss_read_reg(DSS_PLL_CONTROL); ++ l = FLD_MOD(l, 0x7, 25, 22); /* SDI_PLL_FREQSEL */ ++ l = FLD_MOD(l, 0xb, 16, 11); /* SDI_PLL_REGN */ ++ l = FLD_MOD(l, 0xb4, 10, 1); /* SDI_PLL_REGM */ ++ dss_write_reg(DSS_PLL_CONTROL, l); ++} ++ ++void dss_sdi_enable(void) ++{ ++ dispc_pck_free_enable(1); ++ ++ /* Reset SDI PLL */ ++ REG_FLD_MOD(DSS_PLL_CONTROL, 1, 18, 18); /* SDI_PLL_SYSRESET */ ++ udelay(1); /* wait 2x PCLK */ ++ ++ /* Lock SDI PLL */ ++ REG_FLD_MOD(DSS_PLL_CONTROL, 1, 28, 28); /* SDI_PLL_GOBIT */ ++ ++ /* Waiting for PLL lock request to complete */ ++ while (dss_read_reg(DSS_SDI_STATUS) & (1 << 6)) ++ ; ++ ++ /* Clearing PLL_GO bit */ ++ REG_FLD_MOD(DSS_PLL_CONTROL, 0, 28, 28); ++ ++ /* Waiting for PLL to lock */ ++ while (!(dss_read_reg(DSS_SDI_STATUS) & (1 << 5))) ++ ; ++ ++ dispc_lcd_enable_signal(1); ++ ++ /* Waiting for SDI reset to complete */ ++ while (!(dss_read_reg(DSS_SDI_STATUS) & (1 << 2))) ++ ; ++} ++ ++void dss_sdi_disable(void) ++{ ++ dispc_lcd_enable_signal(0); ++ ++ dispc_pck_free_enable(0); ++ ++ /* Reset SDI PLL */ ++ REG_FLD_MOD(DSS_PLL_CONTROL, 0, 18, 18); /* SDI_PLL_SYSRESET */ ++} ++ ++void dss_dump_regs(struct seq_file *s) ++{ ++#define DUMPREG(r) seq_printf(s, "%-35s %08x\n", #r, dss_read_reg(r)) ++ ++ dss_clk_enable(DSS_CLK_ICK | DSS_CLK_FCK1); ++ ++ DUMPREG(DSS_REVISION); ++ DUMPREG(DSS_SYSCONFIG); ++ DUMPREG(DSS_SYSSTATUS); ++ DUMPREG(DSS_IRQSTATUS); ++ DUMPREG(DSS_CONTROL); ++ DUMPREG(DSS_SDI_CONTROL); ++ DUMPREG(DSS_PLL_CONTROL); ++ DUMPREG(DSS_SDI_STATUS); ++ ++ dss_clk_disable(DSS_CLK_ICK | DSS_CLK_FCK1); ++#undef DUMPREG ++} ++ ++void dss_select_clk_source(bool dsi, bool dispc) ++{ ++ u32 r; ++ r = dss_read_reg(DSS_CONTROL); ++ r = FLD_MOD(r, dsi, 1, 1); /* DSI_CLK_SWITCH */ ++ r = FLD_MOD(r, dispc, 0, 0); /* DISPC_CLK_SWITCH */ ++ dss_write_reg(DSS_CONTROL, r); ++} ++ ++int dss_get_dsi_clk_source(void) ++{ ++ return FLD_GET(dss_read_reg(DSS_CONTROL), 1, 1); ++} ++ ++int dss_get_dispc_clk_source(void) ++{ ++ return FLD_GET(dss_read_reg(DSS_CONTROL), 0, 0); ++} ++ ++static irqreturn_t dss_irq_handler_omap2(int irq, void *arg) ++{ ++ dispc_irq_handler(); ++ ++ return IRQ_HANDLED; ++} ++ ++static irqreturn_t dss_irq_handler_omap3(int irq, void *arg) ++{ ++ u32 irqstatus; ++ ++ irqstatus = dss_read_reg(DSS_IRQSTATUS); ++ ++ if (irqstatus & (1<<0)) /* DISPC_IRQ */ ++ dispc_irq_handler(); ++#ifdef CONFIG_OMAP2_DSS_DSI ++ if (irqstatus & (1<<1)) /* DSI_IRQ */ ++ dsi_irq_handler(); ++#endif ++ ++ return IRQ_HANDLED; ++} ++ ++static int _omap_dss_wait_reset(void) ++{ ++ unsigned timeout = 1000; ++ ++ while (REG_GET(DSS_SYSSTATUS, 0, 0) == 0) { ++ udelay(1); ++ if (!--timeout) { ++ DSSERR("soft reset failed\n"); ++ return -ENODEV; ++ } ++ } ++ ++ return 0; ++} ++ ++static int _omap_dss_reset(void) ++{ ++ /* Soft reset */ ++ REG_FLD_MOD(DSS_SYSCONFIG, 1, 1, 1); ++ return _omap_dss_wait_reset(); ++} ++ ++void dss_set_venc_output(enum omap_dss_venc_type type) ++{ ++ int l = 0; ++ ++ if (type == OMAP_DSS_VENC_TYPE_COMPOSITE) ++ l = 0; ++ else if (type == OMAP_DSS_VENC_TYPE_SVIDEO) ++ l = 1; ++ else ++ BUG(); ++ ++ /* venc out selection. 0 = comp, 1 = svideo */ ++ REG_FLD_MOD(DSS_CONTROL, l, 6, 6); ++} ++ ++void dss_set_dac_pwrdn_bgz(bool enable) ++{ ++ REG_FLD_MOD(DSS_CONTROL, enable, 5, 5); /* DAC Power-Down Control */ ++} ++ ++int dss_init(bool skip_init) ++{ ++ int r; ++ u32 rev; ++ ++ dss.base = ioremap(DSS_BASE, DSS_SZ_REGS); ++ if (!dss.base) { ++ DSSERR("can't ioremap DSS\n"); ++ r = -ENOMEM; ++ goto fail0; ++ } ++ ++ if (!skip_init) { ++ /* We need to wait here a bit, otherwise we sometimes start to ++ * get synclost errors, and after that only power cycle will ++ * restore DSS functionality. I have no idea why this happens. ++ * And we have to wait _before_ resetting the DSS, but after ++ * enabling clocks. ++ */ ++ msleep(50); ++ ++ _omap_dss_reset(); ++ ++ } ++ else ++ printk("DSS SKIP RESET\n"); ++ ++ /* autoidle */ ++ REG_FLD_MOD(DSS_SYSCONFIG, 1, 0, 0); ++ ++ /* Select DPLL */ ++ REG_FLD_MOD(DSS_CONTROL, 0, 0, 0); ++ ++#ifdef CONFIG_OMAP2_DSS_VENC ++ REG_FLD_MOD(DSS_CONTROL, 1, 4, 4); /* venc dac demen */ ++ REG_FLD_MOD(DSS_CONTROL, 1, 3, 3); /* venc clock 4x enable */ ++ REG_FLD_MOD(DSS_CONTROL, 0, 2, 2); /* venc clock mode = normal */ ++#endif ++ ++ r = request_irq(INT_24XX_DSS_IRQ, ++ cpu_is_omap24xx() ++ ? dss_irq_handler_omap2 ++ : dss_irq_handler_omap3, ++ 0, "OMAP DSS", NULL); ++ ++ if (r < 0) { ++ DSSERR("omap2 dss: request_irq failed\n"); ++ goto fail1; ++ } ++ ++ dss_save_context(); ++ ++ rev = dss_read_reg(DSS_REVISION); ++ printk(KERN_INFO "OMAP DSS rev %d.%d\n", ++ FLD_GET(rev, 7, 4), FLD_GET(rev, 3, 0)); ++ ++ return 0; ++ ++fail1: ++ iounmap(dss.base); ++fail0: ++ return r; ++} ++ ++void dss_exit(void) ++{ ++ free_irq(INT_24XX_DSS_IRQ, NULL); ++ ++ iounmap(dss.base); ++} ++ +diff --git a/drivers/video/omap2/dss/dss.h b/drivers/video/omap2/dss/dss.h +new file mode 100644 +index 0000000..bac5ece +--- /dev/null ++++ b/drivers/video/omap2/dss/dss.h +@@ -0,0 +1,331 @@ ++/* ++ * linux/drivers/video/omap2/dss/dss.h ++ * ++ * Copyright (C) 2009 Nokia Corporation ++ * Author: Tomi Valkeinen <tomi.valkeinen@nokia.com> ++ * ++ * Some code and ideas taken from drivers/video/omap/ driver ++ * by Imre Deak. ++ * ++ * This program is free software; you can redistribute it and/or modify it ++ * under the terms of the GNU General Public License version 2 as published by ++ * the Free Software Foundation. ++ * ++ * This program is distributed in the hope that it will be useful, but WITHOUT ++ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or ++ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for ++ * more details. ++ * ++ * You should have received a copy of the GNU General Public License along with ++ * this program. If not, see <http://www.gnu.org/licenses/>. ++ */ ++ ++#ifndef __OMAP2_DSS_H ++#define __OMAP2_DSS_H ++ ++#ifdef CONFIG_OMAP2_DSS_DEBUG_SUPPORT ++#define DEBUG ++#endif ++ ++#ifdef DEBUG ++extern unsigned int dss_debug; ++#ifdef DSS_SUBSYS_NAME ++#define DSSDBG(format, ...) \ ++ if (dss_debug) \ ++ printk(KERN_DEBUG "omapdss " DSS_SUBSYS_NAME ": " format, \ ++ ## __VA_ARGS__) ++#else ++#define DSSDBG(format, ...) \ ++ if (dss_debug) \ ++ printk(KERN_DEBUG "omapdss: " format, ## __VA_ARGS__) ++#endif ++ ++#ifdef DSS_SUBSYS_NAME ++#define DSSDBGF(format, ...) \ ++ if (dss_debug) \ ++ printk(KERN_DEBUG "omapdss " DSS_SUBSYS_NAME \ ++ ": %s(" format ")\n", \ ++ __func__, \ ++ ## __VA_ARGS__) ++#else ++#define DSSDBGF(format, ...) \ ++ if (dss_debug) \ ++ printk(KERN_DEBUG "omapdss: " \ ++ ": %s(" format ")\n", \ ++ __func__, \ ++ ## __VA_ARGS__) ++#endif ++ ++#else /* DEBUG */ ++#define DSSDBG(format, ...) ++#define DSSDBGF(format, ...) ++#endif ++ ++ ++#ifdef DSS_SUBSYS_NAME ++#define DSSERR(format, ...) \ ++ printk(KERN_ERR "omapdss " DSS_SUBSYS_NAME " error: " format, \ ++ ## __VA_ARGS__) ++#else ++#define DSSERR(format, ...) \ ++ printk(KERN_ERR "omapdss error: " format, ## __VA_ARGS__) ++#endif ++ ++#ifdef DSS_SUBSYS_NAME ++#define DSSINFO(format, ...) \ ++ printk(KERN_INFO "omapdss " DSS_SUBSYS_NAME ": " format, \ ++ ## __VA_ARGS__) ++#else ++#define DSSINFO(format, ...) \ ++ printk(KERN_INFO "omapdss: " format, ## __VA_ARGS__) ++#endif ++ ++#ifdef DSS_SUBSYS_NAME ++#define DSSWARN(format, ...) \ ++ printk(KERN_WARNING "omapdss " DSS_SUBSYS_NAME ": " format, \ ++ ## __VA_ARGS__) ++#else ++#define DSSWARN(format, ...) \ ++ printk(KERN_WARNING "omapdss: " format, ## __VA_ARGS__) ++#endif ++ ++/* OMAP TRM gives bitfields as start:end, where start is the higher bit ++ number. For example 7:0 */ ++#define FLD_MASK(start, end) (((1 << (start - end + 1)) - 1) << (end)) ++#define FLD_VAL(val, start, end) (((val) << end) & FLD_MASK(start, end)) ++#define FLD_GET(val, start, end) (((val) & FLD_MASK(start, end)) >> (end)) ++#define FLD_MOD(orig, val, start, end) \ ++ (((orig) & ~FLD_MASK(start, end)) | FLD_VAL(val, start, end)) ++ ++#define DISPC_MAX_FCK 173000000 ++ ++enum omap_burst_size { ++ OMAP_DSS_BURST_4x32 = 0, ++ OMAP_DSS_BURST_8x32 = 1, ++ OMAP_DSS_BURST_16x32 = 2, ++}; ++ ++enum omap_parallel_interface_mode { ++ OMAP_DSS_PARALLELMODE_BYPASS, /* MIPI DPI */ ++ OMAP_DSS_PARALLELMODE_RFBI, /* MIPI DBI */ ++ OMAP_DSS_PARALLELMODE_DSI, ++}; ++ ++enum dss_clock { ++ DSS_CLK_ICK = 1 << 0, ++ DSS_CLK_FCK1 = 1 << 1, ++ DSS_CLK_FCK2 = 1 << 2, ++ DSS_CLK_54M = 1 << 3, ++ DSS_CLK_96M = 1 << 4, ++}; ++ ++struct dispc_clock_info { ++ /* rates that we get with dividers below */ ++ unsigned long fck; ++ unsigned long lck; ++ unsigned long pck; ++ ++ /* dividers */ ++ u16 fck_div; ++ u16 lck_div; ++ u16 pck_div; ++}; ++ ++struct dsi_clock_info { ++ /* rates that we get with dividers below */ ++ unsigned long fint; ++ unsigned long dsiphy; ++ unsigned long clkin; ++ unsigned long dsi1_pll_fclk; ++ unsigned long dsi2_pll_fclk; ++ unsigned long lck; ++ unsigned long pck; ++ ++ /* dividers */ ++ u16 regn; ++ u16 regm; ++ u16 regm3; ++ u16 regm4; ++ ++ u16 lck_div; ++ u16 pck_div; ++ ++ u8 highfreq; ++ bool use_dss2_fck; ++}; ++ ++struct seq_file; ++struct platform_device; ++ ++/* core */ ++void dss_clk_enable(enum dss_clock clks); ++void dss_clk_disable(enum dss_clock clks); ++unsigned long dss_clk_get_rate(enum dss_clock clk); ++int dss_need_ctx_restore(void); ++void dss_dump_clocks(struct seq_file *s); ++ ++int dss_dsi_power_up(void); ++void dss_dsi_power_down(void); ++ ++/* display */ ++void dss_init_displays(struct platform_device *pdev); ++void dss_uninit_displays(struct platform_device *pdev); ++int dss_suspend_all_displays(void); ++int dss_resume_all_displays(void); ++struct omap_display *dss_get_display(int no); ++ ++/* manager */ ++int dss_init_overlay_managers(struct platform_device *pdev); ++void dss_uninit_overlay_managers(struct platform_device *pdev); ++ ++/* overlay */ ++void dss_init_overlays(struct platform_device *pdev, const char *def_disp_name); ++void dss_uninit_overlays(struct platform_device *pdev); ++int dss_check_overlay(struct omap_overlay *ovl, struct omap_display *display); ++void dss_overlay_setup_dispc_manager(struct omap_overlay_manager *mgr); ++ ++/* DSS */ ++int dss_init(bool skip_init); ++void dss_exit(void); ++ ++void dss_save_context(void); ++void dss_restore_context(void); ++ ++void dss_dump_regs(struct seq_file *s); ++ ++void dss_sdi_init(u8 datapairs); ++void dss_sdi_enable(void); ++void dss_sdi_disable(void); ++ ++void dss_select_clk_source(bool dsi, bool dispc); ++int dss_get_dsi_clk_source(void); ++int dss_get_dispc_clk_source(void); ++void dss_set_venc_output(enum omap_dss_venc_type type); ++void dss_set_dac_pwrdn_bgz(bool enable); ++ ++/* SDI */ ++int sdi_init(bool skip_init); ++void sdi_exit(void); ++void sdi_init_display(struct omap_display *display); ++ ++/* DSI */ ++int dsi_init(void); ++void dsi_exit(void); ++ ++void dsi_dump_clocks(struct seq_file *s); ++void dsi_dump_regs(struct seq_file *s); ++ ++void dsi_save_context(void); ++void dsi_restore_context(void); ++ ++void dsi_init_display(struct omap_display *display); ++void dsi_irq_handler(void); ++unsigned long dsi_get_dsi1_pll_rate(void); ++unsigned long dsi_get_dsi2_pll_rate(void); ++int dsi_pll_calc_pck(bool is_tft, unsigned long req_pck, ++ struct dsi_clock_info *cinfo); ++int dsi_pll_program(struct dsi_clock_info *cinfo); ++int dsi_pll_init(bool enable_hsclk, bool enable_hsdiv); ++void dsi_pll_uninit(void); ++ ++/* DPI */ ++int dpi_init(void); ++void dpi_exit(void); ++void dpi_init_display(struct omap_display *display); ++ ++/* DISPC */ ++int dispc_init(void); ++void dispc_exit(void); ++void dispc_dump_clocks(struct seq_file *s); ++void dispc_dump_regs(struct seq_file *s); ++void dispc_irq_handler(void); ++void dispc_fake_vsync_irq(void); ++ ++void dispc_save_context(void); ++void dispc_restore_context(void); ++ ++void dispc_lcd_enable_signal_polarity(bool act_high); ++void dispc_lcd_enable_signal(bool enable); ++void dispc_pck_free_enable(bool enable); ++void dispc_enable_fifohandcheck(bool enable); ++ ++void dispc_set_lcd_size(u16 width, u16 height); ++void dispc_set_digit_size(u16 width, u16 height); ++u32 dispc_get_plane_fifo_size(enum omap_plane plane); ++void dispc_setup_plane_fifo(enum omap_plane plane, u32 low, u32 high); ++void dispc_enable_fifomerge(bool enable); ++void dispc_set_burst_size(enum omap_plane plane, ++ enum omap_burst_size burst_size); ++ ++void dispc_set_plane_ba0(enum omap_plane plane, u32 paddr); ++void dispc_set_plane_ba1(enum omap_plane plane, u32 paddr); ++void dispc_set_plane_pos(enum omap_plane plane, u16 x, u16 y); ++void dispc_set_plane_size(enum omap_plane plane, u16 width, u16 height); ++ ++int dispc_setup_plane(enum omap_plane plane, enum omap_channel channel_out, ++ u32 paddr, u16 screen_width, ++ u16 pos_x, u16 pos_y, ++ u16 width, u16 height, ++ u16 out_width, u16 out_height, ++ enum omap_color_mode color_mode, ++ bool ilace, ++ u8 rotation, bool mirror); ++ ++void dispc_go(enum omap_channel channel); ++void dispc_enable_lcd_out(bool enable); ++void dispc_enable_digit_out(bool enable); ++int dispc_enable_plane(enum omap_plane plane, bool enable); ++ ++void dispc_set_parallel_interface_mode(enum omap_parallel_interface_mode mode); ++void dispc_set_tft_data_lines(u8 data_lines); ++void dispc_set_lcd_display_type(enum omap_lcd_display_type type); ++void dispc_set_loadmode(enum omap_dss_load_mode mode); ++ ++void dispc_set_default_color(enum omap_channel channel, u32 color); ++u32 dispc_get_default_color(enum omap_channel channel); ++void dispc_set_trans_key(enum omap_channel ch, ++ enum omap_dss_color_key_type type, ++ u32 trans_key); ++void dispc_get_trans_key(enum omap_channel ch, ++ enum omap_dss_color_key_type *type, ++ u32 *trans_key); ++void dispc_enable_trans_key(enum omap_channel ch, bool enable); ++bool dispc_trans_key_enabled(enum omap_channel ch); ++ ++void dispc_set_lcd_timings(struct omap_video_timings *timings); ++unsigned long dispc_fclk_rate(void); ++unsigned long dispc_pclk_rate(void); ++void dispc_set_pol_freq(struct omap_panel *panel); ++void find_lck_pck_divs(bool is_tft, unsigned long req_pck, unsigned long fck, ++ u16 *lck_div, u16 *pck_div); ++int dispc_calc_clock_div(bool is_tft, unsigned long req_pck, ++ struct dispc_clock_info *cinfo); ++int dispc_set_clock_div(struct dispc_clock_info *cinfo); ++int dispc_get_clock_div(struct dispc_clock_info *cinfo); ++void dispc_set_lcd_divisor(u16 lck_div, u16 pck_div); ++ ++void dispc_setup_partial_planes(struct omap_display *display, ++ u16 *x, u16 *y, u16 *w, u16 *h); ++void dispc_draw_partial_planes(struct omap_display *display); ++ ++ ++/* VENC */ ++int venc_init(void); ++void venc_exit(void); ++void venc_dump_regs(struct seq_file *s); ++void venc_init_display(struct omap_display *display); ++ ++/* RFBI */ ++int rfbi_init(void); ++void rfbi_exit(void); ++void rfbi_dump_regs(struct seq_file *s); ++ ++int rfbi_configure(int rfbi_module, int bpp, int lines); ++void rfbi_enable_rfbi(bool enable); ++void rfbi_transfer_area(u16 width, u16 height, ++ void (callback)(void *data), void *data); ++void rfbi_set_timings(int rfbi_module, struct rfbi_timings *t); ++unsigned long rfbi_get_max_tx_rate(void); ++void rfbi_init_display(struct omap_display *display); ++ ++#endif +diff --git a/drivers/video/omap2/dss/manager.c b/drivers/video/omap2/dss/manager.c +new file mode 100644 +index 0000000..b0fee80 +--- /dev/null ++++ b/drivers/video/omap2/dss/manager.c +@@ -0,0 +1,576 @@ ++/* ++ * linux/drivers/video/omap2/dss/manager.c ++ * ++ * Copyright (C) 2009 Nokia Corporation ++ * Author: Tomi Valkeinen <tomi.valkeinen@nokia.com> ++ * ++ * Some code and ideas taken from drivers/video/omap/ driver ++ * by Imre Deak. ++ * ++ * This program is free software; you can redistribute it and/or modify it ++ * under the terms of the GNU General Public License version 2 as published by ++ * the Free Software Foundation. ++ * ++ * This program is distributed in the hope that it will be useful, but WITHOUT ++ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or ++ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for ++ * more details. ++ * ++ * You should have received a copy of the GNU General Public License along with ++ * this program. If not, see <http://www.gnu.org/licenses/>. ++ */ ++ ++#define DSS_SUBSYS_NAME "MANAGER" ++ ++#include <linux/kernel.h> ++#include <linux/module.h> ++#include <linux/platform_device.h> ++ ++#include <mach/display.h> ++ ++#include "dss.h" ++ ++static int num_managers; ++static struct list_head manager_list; ++ ++static ssize_t manager_name_show(struct omap_overlay_manager *mgr, char *buf) ++{ ++ return snprintf(buf, PAGE_SIZE, "%s\n", mgr->name); ++} ++ ++static ssize_t manager_display_show(struct omap_overlay_manager *mgr, char *buf) ++{ ++ return snprintf(buf, PAGE_SIZE, "%s\n", ++ mgr->display ? mgr->display->name : "<none>"); ++} ++ ++static ssize_t manager_display_store(struct omap_overlay_manager *mgr, const char *buf, size_t size) ++{ ++ int r, i; ++ int len = size; ++ struct omap_display *display = NULL; ++ ++ if (buf[size-1] == '\n') ++ --len; ++ ++ if (len > 0) { ++ for (i = 0; i < omap_dss_get_num_displays(); ++i) { ++ display = dss_get_display(i); ++ ++ if (strncmp(buf, display->name, len) == 0) ++ break; ++ ++ display = NULL; ++ } ++ } ++ ++ if (len > 0 && display == NULL) ++ return -EINVAL; ++ ++ if (display) ++ DSSDBG("display %s found\n", display->name); ++ ++ if (mgr->display) { ++ r = mgr->unset_display(mgr); ++ if (r) { ++ DSSERR("failed to unset display\n"); ++ return r; ++ } ++ } ++ ++ if (display) { ++ r = mgr->set_display(mgr, display); ++ if (r) { ++ DSSERR("failed to set manager\n"); ++ return r; ++ } ++ ++ r = mgr->apply(mgr); ++ if (r) { ++ DSSERR("failed to apply dispc config\n"); ++ return r; ++ } ++ } ++ ++ return size; ++} ++ ++static ssize_t manager_default_color_show(struct omap_overlay_manager *mgr, ++ char *buf) ++{ ++ u32 default_color; ++ ++ default_color = dispc_get_default_color(mgr->id); ++ return snprintf(buf, PAGE_SIZE, "%d", default_color); ++} ++ ++static ssize_t manager_default_color_store(struct omap_overlay_manager *mgr, ++ const char *buf, size_t size) ++{ ++ u32 default_color; ++ ++ if (sscanf(buf, "%d", &default_color) != 1) ++ return -EINVAL; ++ dispc_set_default_color(mgr->id, default_color); ++ ++ return size; ++} ++ ++static const char *color_key_type_str[] = { ++ "gfx-destination", ++ "video-source", ++}; ++ ++static ssize_t manager_color_key_type_show(struct omap_overlay_manager *mgr, ++ char *buf) ++{ ++ enum omap_dss_color_key_type key_type; ++ ++ dispc_get_trans_key(mgr->id, &key_type, NULL); ++ BUG_ON(key_type >= ARRAY_SIZE(color_key_type_str)); ++ ++ return snprintf(buf, PAGE_SIZE, "%s\n", color_key_type_str[key_type]); ++} ++ ++static ssize_t manager_color_key_type_store(struct omap_overlay_manager *mgr, ++ const char *buf, size_t size) ++{ ++ enum omap_dss_color_key_type key_type; ++ u32 key_value; ++ ++ for (key_type = OMAP_DSS_COLOR_KEY_GFX_DST; ++ key_type < ARRAY_SIZE(color_key_type_str); key_type++) { ++ if (sysfs_streq(buf, color_key_type_str[key_type])) ++ break; ++ } ++ if (key_type == ARRAY_SIZE(color_key_type_str)) ++ return -EINVAL; ++ dispc_get_trans_key(mgr->id, NULL, &key_value); ++ dispc_set_trans_key(mgr->id, key_type, key_value); ++ ++ return size; ++} ++ ++static ssize_t manager_color_key_value_show(struct omap_overlay_manager *mgr, ++ char *buf) ++{ ++ u32 key_value; ++ ++ dispc_get_trans_key(mgr->id, NULL, &key_value); ++ ++ return snprintf(buf, PAGE_SIZE, "%d\n", key_value); ++} ++ ++static ssize_t manager_color_key_value_store(struct omap_overlay_manager *mgr, ++ const char *buf, size_t size) ++{ ++ enum omap_dss_color_key_type key_type; ++ u32 key_value; ++ ++ if (sscanf(buf, "%d", &key_value) != 1) ++ return -EINVAL; ++ dispc_get_trans_key(mgr->id, &key_type, NULL); ++ dispc_set_trans_key(mgr->id, key_type, key_value); ++ ++ return size; ++} ++ ++static ssize_t manager_color_key_enabled_show(struct omap_overlay_manager *mgr, ++ char *buf) ++{ ++ return snprintf(buf, PAGE_SIZE, "%d\n", ++ dispc_trans_key_enabled(mgr->id)); ++} ++ ++static ssize_t manager_color_key_enabled_store(struct omap_overlay_manager *mgr, ++ const char *buf, size_t size) ++{ ++ int enable; ++ ++ if (sscanf(buf, "%d", &enable) != 1) ++ return -EINVAL; ++ ++ dispc_enable_trans_key(mgr->id, enable); ++ ++ return size; ++} ++ ++ ++struct manager_attribute { ++ struct attribute attr; ++ ssize_t (*show)(struct omap_overlay_manager *, char *); ++ ssize_t (*store)(struct omap_overlay_manager *, const char *, size_t); ++}; ++ ++#define MANAGER_ATTR(_name, _mode, _show, _store) \ ++ struct manager_attribute manager_attr_##_name = \ ++ __ATTR(_name, _mode, _show, _store) ++ ++static MANAGER_ATTR(name, S_IRUGO, manager_name_show, NULL); ++static MANAGER_ATTR(display, S_IRUGO|S_IWUSR, ++ manager_display_show, manager_display_store); ++static MANAGER_ATTR(default_color, S_IRUGO|S_IWUSR, ++ manager_default_color_show, manager_default_color_store); ++static MANAGER_ATTR(color_key_type, S_IRUGO|S_IWUSR, ++ manager_color_key_type_show, manager_color_key_type_store); ++static MANAGER_ATTR(color_key_value, S_IRUGO|S_IWUSR, ++ manager_color_key_value_show, manager_color_key_value_store); ++static MANAGER_ATTR(color_key_enabled, S_IRUGO|S_IWUSR, ++ manager_color_key_enabled_show, manager_color_key_enabled_store); ++ ++static struct attribute *manager_sysfs_attrs[] = { ++ &manager_attr_name.attr, ++ &manager_attr_display.attr, ++ &manager_attr_default_color.attr, ++ &manager_attr_color_key_type.attr, ++ &manager_attr_color_key_value.attr, ++ &manager_attr_color_key_enabled.attr, ++ NULL ++}; ++ ++static ssize_t manager_attr_show(struct kobject *kobj, struct attribute *attr, char *buf) ++{ ++ struct omap_overlay_manager *manager; ++ struct manager_attribute *manager_attr; ++ ++ manager = container_of(kobj, struct omap_overlay_manager, kobj); ++ manager_attr = container_of(attr, struct manager_attribute, attr); ++ ++ if (!manager_attr->show) ++ return -ENOENT; ++ ++ return manager_attr->show(manager, buf); ++} ++ ++static ssize_t manager_attr_store(struct kobject *kobj, struct attribute *attr, ++ const char *buf, size_t size) ++{ ++ struct omap_overlay_manager *manager; ++ struct manager_attribute *manager_attr; ++ ++ manager = container_of(kobj, struct omap_overlay_manager, kobj); ++ manager_attr = container_of(attr, struct manager_attribute, attr); ++ ++ if (!manager_attr->store) ++ return -ENOENT; ++ ++ return manager_attr->store(manager, buf, size); ++} ++ ++static struct sysfs_ops manager_sysfs_ops = { ++ .show = manager_attr_show, ++ .store = manager_attr_store, ++}; ++ ++static struct kobj_type manager_ktype = { ++ .sysfs_ops = &manager_sysfs_ops, ++ .default_attrs = manager_sysfs_attrs, ++}; ++ ++static int omap_dss_set_display(struct omap_overlay_manager *mgr, ++ struct omap_display *display) ++{ ++ int i; ++ int r; ++ ++ if (display->manager) { ++ DSSERR("display '%s' already has a manager '%s'\n", ++ display->name, display->manager->name); ++ return -EINVAL; ++ } ++ ++ if ((mgr->supported_displays & display->type) == 0) { ++ DSSERR("display '%s' does not support manager '%s'\n", ++ display->name, mgr->name); ++ return -EINVAL; ++ } ++ ++ for (i = 0; i < mgr->num_overlays; i++) { ++ struct omap_overlay *ovl = mgr->overlays[i]; ++ ++ if (ovl->manager != mgr || !ovl->info.enabled) ++ continue; ++ ++ r = dss_check_overlay(ovl, display); ++ if (r) ++ return r; ++ } ++ ++ display->manager = mgr; ++ mgr->display = display; ++ ++ return 0; ++} ++ ++static int omap_dss_unset_display(struct omap_overlay_manager *mgr) ++{ ++ if (!mgr->display) { ++ DSSERR("failed to unset display, display not set.\n"); ++ return -EINVAL; ++ } ++ ++ mgr->display->manager = NULL; ++ mgr->display = NULL; ++ ++ return 0; ++} ++ ++ ++static int overlay_enabled(struct omap_overlay *ovl) ++{ ++ return ovl->info.enabled && ovl->manager && ovl->manager->display; ++} ++ ++/* We apply settings to both managers here so that we can use optimizations ++ * like fifomerge. Shadow registers can be changed first and the non-shadowed ++ * should be changed last, at the same time with GO */ ++static int omap_dss_mgr_apply(struct omap_overlay_manager *mgr) ++{ ++ int i; ++ int ret = 0; ++ enum omap_dss_update_mode mode; ++ struct omap_display *display; ++ struct omap_overlay *ovl; ++ bool ilace = 0; ++ int outw, outh; ++ int r; ++ int num_planes_enabled = 0; ++ ++ DSSDBG("omap_dss_mgr_apply(%s)\n", mgr->name); ++ ++ dss_clk_enable(DSS_CLK_ICK | DSS_CLK_FCK1); ++ ++ /* Configure normal overlay parameters and disable unused overlays */ ++ for (i = 0; i < omap_dss_get_num_overlays(); ++i) { ++ ovl = omap_dss_get_overlay(i); ++ ++ if (!(ovl->caps & OMAP_DSS_OVL_CAP_DISPC)) ++ continue; ++ ++ if (!overlay_enabled(ovl)) { ++ dispc_enable_plane(ovl->id, 0); ++ continue; ++ } ++ ++ display = ovl->manager->display; ++ ++ if (dss_check_overlay(ovl, display)) { ++ dispc_enable_plane(ovl->id, 0); ++ continue; ++ } ++ ++ ++num_planes_enabled; ++ ++ /* On a manual update display, in manual update mode, update() ++ * handles configuring planes */ ++ mode = OMAP_DSS_UPDATE_AUTO; ++ if (display->get_update_mode) ++ mode = display->get_update_mode(mgr->display); ++ ++ if (display->caps & OMAP_DSS_DISPLAY_CAP_MANUAL_UPDATE && ++ mode != OMAP_DSS_UPDATE_AUTO) ++ continue; ++ ++ if (display->type == OMAP_DISPLAY_TYPE_VENC) ++ ilace = 1; ++ ++ if (ovl->info.out_width == 0) ++ outw = ovl->info.width; ++ else ++ outw = ovl->info.out_width; ++ ++ if (ovl->info.out_height == 0) ++ outh = ovl->info.height; ++ else ++ outh = ovl->info.out_height; ++ ++ r = dispc_setup_plane(ovl->id, ovl->manager->id, ++ ovl->info.paddr, ++ ovl->info.screen_width, ++ ovl->info.pos_x, ++ ovl->info.pos_y, ++ ovl->info.width, ++ ovl->info.height, ++ outw, ++ outh, ++ ovl->info.color_mode, ++ ilace, ++ ovl->info.rotation, ++ ovl->info.mirror); ++ ++ if (r) { ++ DSSERR("dispc_setup_plane failed for ovl %d\n", ++ ovl->id); ++ dispc_enable_plane(ovl->id, 0); ++ continue; ++ } ++ ++ dispc_enable_plane(ovl->id, 1); ++ } ++ ++ /* Enable fifo merge if possible */ ++ dispc_enable_fifomerge(num_planes_enabled == 1); ++ ++ /* Go through overlays again. This time we configure fifos. We have to ++ * do this after enabling/disabling fifomerge so that we have correct ++ * knowledge of fifo sizes */ ++ for (i = 0; i < omap_dss_get_num_overlays(); ++i) { ++ ovl = omap_dss_get_overlay(i); ++ ++ if (!(ovl->caps & OMAP_DSS_OVL_CAP_DISPC)) ++ continue; ++ ++ if (!overlay_enabled(ovl)) { ++ continue; ++ } ++ ++ ovl->manager->display->configure_overlay(ovl); ++ } ++ ++ /* Issue GO for managers */ ++ list_for_each_entry(mgr, &manager_list, list) { ++ if (!(mgr->caps & OMAP_DSS_OVL_MGR_CAP_DISPC)) ++ continue; ++ ++ display = mgr->display; ++ ++ if (!display) ++ continue; ++ ++ /* We don't need GO with manual update display. LCD iface will ++ * always be turned off after frame, and new settings will ++ * be taken in to use at next update */ ++ if (display->caps & OMAP_DSS_DISPLAY_CAP_MANUAL_UPDATE) ++ continue; ++ ++ dispc_go(mgr->id); ++ } ++ ++ dss_clk_disable(DSS_CLK_ICK | DSS_CLK_FCK1); ++ ++ return ret; ++} ++ ++static void omap_dss_mgr_set_def_color(struct omap_overlay_manager *mgr, ++ u32 color) ++{ ++ dispc_set_default_color(mgr->id, color); ++} ++ ++static void omap_dss_mgr_set_trans_key(struct omap_overlay_manager *mgr, ++ enum omap_dss_color_key_type type, ++ u32 trans_key) ++{ ++ dispc_set_trans_key(mgr->id, type, trans_key); ++} ++ ++static void omap_dss_mgr_enable_trans_key(struct omap_overlay_manager *mgr, ++ bool enable) ++{ ++ dispc_enable_trans_key(mgr->id, enable); ++} ++ ++static void omap_dss_add_overlay_manager(struct omap_overlay_manager *manager) ++{ ++ ++num_managers; ++ list_add_tail(&manager->list, &manager_list); ++} ++ ++int dss_init_overlay_managers(struct platform_device *pdev) ++{ ++ int i, r; ++ ++ INIT_LIST_HEAD(&manager_list); ++ ++ num_managers = 0; ++ ++ for (i = 0; i < 2; ++i) { ++ struct omap_overlay_manager *mgr; ++ mgr = kzalloc(sizeof(*mgr), GFP_KERNEL); ++ ++ BUG_ON(mgr == NULL); ++ ++ switch (i) { ++ case 0: ++ mgr->name = "lcd"; ++ mgr->id = OMAP_DSS_CHANNEL_LCD; ++ mgr->supported_displays = ++ OMAP_DISPLAY_TYPE_DPI | OMAP_DISPLAY_TYPE_DBI | ++ OMAP_DISPLAY_TYPE_SDI | OMAP_DISPLAY_TYPE_DSI; ++ break; ++ case 1: ++ mgr->name = "tv"; ++ mgr->id = OMAP_DSS_CHANNEL_DIGIT; ++ mgr->supported_displays = OMAP_DISPLAY_TYPE_VENC; ++ break; ++ } ++ ++ mgr->set_display = &omap_dss_set_display, ++ mgr->unset_display = &omap_dss_unset_display, ++ mgr->apply = &omap_dss_mgr_apply, ++ mgr->set_default_color = &omap_dss_mgr_set_def_color, ++ mgr->set_trans_key = &omap_dss_mgr_set_trans_key, ++ mgr->enable_trans_key = &omap_dss_mgr_enable_trans_key, ++ mgr->caps = OMAP_DSS_OVL_MGR_CAP_DISPC, ++ ++ dss_overlay_setup_dispc_manager(mgr); ++ ++ omap_dss_add_overlay_manager(mgr); ++ ++ r = kobject_init_and_add(&mgr->kobj, &manager_ktype, ++ &pdev->dev.kobj, "manager%d", i); ++ ++ if (r) { ++ DSSERR("failed to create sysfs file\n"); ++ continue; ++ } ++ } ++ ++ return 0; ++} ++ ++void dss_uninit_overlay_managers(struct platform_device *pdev) ++{ ++ struct omap_overlay_manager *mgr; ++ ++ while (!list_empty(&manager_list)) { ++ mgr = list_first_entry(&manager_list, ++ struct omap_overlay_manager, list); ++ list_del(&mgr->list); ++ kobject_del(&mgr->kobj); ++ kobject_put(&mgr->kobj); ++ kfree(mgr); ++ } ++ ++ num_managers = 0; ++} ++ ++int omap_dss_get_num_overlay_managers(void) ++{ ++ return num_managers; ++} ++EXPORT_SYMBOL(omap_dss_get_num_overlay_managers); ++ ++struct omap_overlay_manager *omap_dss_get_overlay_manager(int num) ++{ ++ int i = 0; ++ struct omap_overlay_manager *mgr; ++ ++ list_for_each_entry(mgr, &manager_list, list) { ++ if (i++ == num) ++ return mgr; ++ } ++ ++ return NULL; ++} ++EXPORT_SYMBOL(omap_dss_get_overlay_manager); ++ ++#ifdef L4_EXAMPLE ++static int ovl_mgr_apply_l4(struct omap_overlay_manager *mgr) ++{ ++ DSSDBG("omap_dss_mgr_apply_l4(%s)\n", mgr->name); ++ ++ return 0; ++} ++#endif ++ +diff --git a/drivers/video/omap2/dss/overlay.c b/drivers/video/omap2/dss/overlay.c +new file mode 100644 +index 0000000..968edbe +--- /dev/null ++++ b/drivers/video/omap2/dss/overlay.c +@@ -0,0 +1,587 @@ ++/* ++ * linux/drivers/video/omap2/dss/overlay.c ++ * ++ * Copyright (C) 2009 Nokia Corporation ++ * Author: Tomi Valkeinen <tomi.valkeinen@nokia.com> ++ * ++ * Some code and ideas taken from drivers/video/omap/ driver ++ * by Imre Deak. ++ * ++ * This program is free software; you can redistribute it and/or modify it ++ * under the terms of the GNU General Public License version 2 as published by ++ * the Free Software Foundation. ++ * ++ * This program is distributed in the hope that it will be useful, but WITHOUT ++ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or ++ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for ++ * more details. ++ * ++ * You should have received a copy of the GNU General Public License along with ++ * this program. If not, see <http://www.gnu.org/licenses/>. ++ */ ++ ++#define DSS_SUBSYS_NAME "OVERLAY" ++ ++#include <linux/kernel.h> ++#include <linux/module.h> ++#include <linux/err.h> ++#include <linux/sysfs.h> ++#include <linux/kobject.h> ++#include <linux/platform_device.h> ++ ++#include <mach/display.h> ++ ++#include "dss.h" ++ ++static int num_overlays; ++static struct list_head overlay_list; ++ ++static ssize_t overlay_name_show(struct omap_overlay *ovl, char *buf) ++{ ++ return snprintf(buf, PAGE_SIZE, "%s\n", ovl->name); ++} ++ ++static ssize_t overlay_manager_show(struct omap_overlay *ovl, char *buf) ++{ ++ return snprintf(buf, PAGE_SIZE, "%s\n", ++ ovl->manager ? ovl->manager->name : "<none>"); ++} ++ ++static ssize_t overlay_manager_store(struct omap_overlay *ovl, const char *buf, size_t size) ++{ ++ int i, r; ++ struct omap_overlay_manager *mgr = NULL; ++ int len = size; ++ ++ if (buf[size-1] == '\n') ++ --len; ++ ++ if (len > 0) { ++ for (i = 0; i < omap_dss_get_num_overlay_managers(); ++i) { ++ mgr = omap_dss_get_overlay_manager(i); ++ ++ if (strncmp(buf, mgr->name, len) == 0) ++ break; ++ ++ mgr = NULL; ++ } ++ } ++ ++ if (len > 0 && mgr == NULL) ++ return -EINVAL; ++ ++ if (mgr) ++ DSSDBG("manager %s found\n", mgr->name); ++ ++ if (mgr != ovl->manager) { ++ /* detach old manager */ ++ if (ovl->manager) { ++ r = ovl->unset_manager(ovl); ++ if (r) { ++ DSSERR("detach failed\n"); ++ return r; ++ } ++ } ++ ++ if (mgr) { ++ r = ovl->set_manager(ovl, mgr); ++ if (r) { ++ DSSERR("Failed to attach overlay\n"); ++ return r; ++ } ++ } ++ } ++ ++ if (ovl->manager && (r = ovl->manager->apply(ovl->manager))) ++ return r; ++ ++ return size; ++} ++ ++static ssize_t overlay_input_size_show(struct omap_overlay *ovl, char *buf) ++{ ++ return snprintf(buf, PAGE_SIZE, "%d,%d\n", ++ ovl->info.width, ovl->info.height); ++} ++ ++static ssize_t overlay_screen_width_show(struct omap_overlay *ovl, char *buf) ++{ ++ return snprintf(buf, PAGE_SIZE, "%d\n", ovl->info.screen_width); ++} ++ ++static ssize_t overlay_position_show(struct omap_overlay *ovl, char *buf) ++{ ++ return snprintf(buf, PAGE_SIZE, "%d,%d\n", ++ ovl->info.pos_x, ovl->info.pos_y); ++} ++ ++static ssize_t overlay_position_store(struct omap_overlay *ovl, ++ const char *buf, size_t size) ++{ ++ int r; ++ char *last; ++ struct omap_overlay_info info; ++ ++ ovl->get_overlay_info(ovl, &info); ++ ++ info.pos_x = simple_strtoul(buf, &last, 10); ++ ++last; ++ if (last - buf >= size) ++ return -EINVAL; ++ ++ info.pos_y = simple_strtoul(last, &last, 10); ++ ++ if ((r = ovl->set_overlay_info(ovl, &info))) ++ return r; ++ ++ if (ovl->manager && (r = ovl->manager->apply(ovl->manager))) ++ return r; ++ ++ return size; ++} ++ ++static ssize_t overlay_output_size_show(struct omap_overlay *ovl, char *buf) ++{ ++ return snprintf(buf, PAGE_SIZE, "%d,%d\n", ++ ovl->info.out_width, ovl->info.out_height); ++} ++ ++static ssize_t overlay_output_size_store(struct omap_overlay *ovl, ++ const char *buf, size_t size) ++{ ++ int r; ++ char *last; ++ struct omap_overlay_info info; ++ ++ ovl->get_overlay_info(ovl, &info); ++ ++ info.out_width = simple_strtoul(buf, &last, 10); ++ ++last; ++ if (last - buf >= size) ++ return -EINVAL; ++ ++ info.out_height = simple_strtoul(last, &last, 10); ++ ++ if ((r = ovl->set_overlay_info(ovl, &info))) ++ return r; ++ ++ if (ovl->manager && (r = ovl->manager->apply(ovl->manager))) ++ return r; ++ ++ return size; ++} ++ ++static ssize_t overlay_enabled_show(struct omap_overlay *ovl, char *buf) ++{ ++ return snprintf(buf, PAGE_SIZE, "%d\n", ovl->info.enabled); ++} ++ ++static ssize_t overlay_enabled_store(struct omap_overlay *ovl, const char *buf, size_t size) ++{ ++ int r; ++ struct omap_overlay_info info; ++ ++ ovl->get_overlay_info(ovl, &info); ++ ++ info.enabled = simple_strtoul(buf, NULL, 10); ++ ++ if ((r = ovl->set_overlay_info(ovl, &info))) ++ return r; ++ ++ if (ovl->manager && (r = ovl->manager->apply(ovl->manager))) ++ return r; ++ ++ return size; ++} ++ ++struct overlay_attribute { ++ struct attribute attr; ++ ssize_t (*show)(struct omap_overlay *, char *); ++ ssize_t (*store)(struct omap_overlay *, const char *, size_t); ++}; ++ ++#define OVERLAY_ATTR(_name, _mode, _show, _store) \ ++ struct overlay_attribute overlay_attr_##_name = \ ++ __ATTR(_name, _mode, _show, _store) ++ ++static OVERLAY_ATTR(name, S_IRUGO, overlay_name_show, NULL); ++static OVERLAY_ATTR(manager, S_IRUGO|S_IWUSR, ++ overlay_manager_show, overlay_manager_store); ++static OVERLAY_ATTR(input_size, S_IRUGO, overlay_input_size_show, NULL); ++static OVERLAY_ATTR(screen_width, S_IRUGO, overlay_screen_width_show, NULL); ++static OVERLAY_ATTR(position, S_IRUGO|S_IWUSR, ++ overlay_position_show, overlay_position_store); ++static OVERLAY_ATTR(output_size, S_IRUGO|S_IWUSR, ++ overlay_output_size_show, overlay_output_size_store); ++static OVERLAY_ATTR(enabled, S_IRUGO|S_IWUSR, ++ overlay_enabled_show, overlay_enabled_store); ++ ++static struct attribute *overlay_sysfs_attrs[] = { ++ &overlay_attr_name.attr, ++ &overlay_attr_manager.attr, ++ &overlay_attr_input_size.attr, ++ &overlay_attr_screen_width.attr, ++ &overlay_attr_position.attr, ++ &overlay_attr_output_size.attr, ++ &overlay_attr_enabled.attr, ++ NULL ++}; ++ ++static ssize_t overlay_attr_show(struct kobject *kobj, struct attribute *attr, char *buf) ++{ ++ struct omap_overlay *overlay; ++ struct overlay_attribute *overlay_attr; ++ ++ overlay = container_of(kobj, struct omap_overlay, kobj); ++ overlay_attr = container_of(attr, struct overlay_attribute, attr); ++ ++ if (!overlay_attr->show) ++ return -ENOENT; ++ ++ return overlay_attr->show(overlay, buf); ++} ++ ++static ssize_t overlay_attr_store(struct kobject *kobj, struct attribute *attr, ++ const char *buf, size_t size) ++{ ++ struct omap_overlay *overlay; ++ struct overlay_attribute *overlay_attr; ++ ++ overlay = container_of(kobj, struct omap_overlay, kobj); ++ overlay_attr = container_of(attr, struct overlay_attribute, attr); ++ ++ if (!overlay_attr->store) ++ return -ENOENT; ++ ++ return overlay_attr->store(overlay, buf, size); ++} ++ ++static struct sysfs_ops overlay_sysfs_ops = { ++ .show = overlay_attr_show, ++ .store = overlay_attr_store, ++}; ++ ++static struct kobj_type overlay_ktype = { ++ .sysfs_ops = &overlay_sysfs_ops, ++ .default_attrs = overlay_sysfs_attrs, ++}; ++ ++/* Check if overlay parameters are compatible with display */ ++int dss_check_overlay(struct omap_overlay *ovl, struct omap_display *display) ++{ ++ struct omap_overlay_info *info; ++ u16 outw, outh; ++ u16 dw, dh; ++ ++ if (!display) ++ return 0; ++ ++ if (!ovl->info.enabled) ++ return 0; ++ ++ info = &ovl->info; ++ ++ display->get_resolution(display, &dw, &dh); ++ ++ DSSDBG("check_overlay %d: (%d,%d %dx%d -> %dx%d) disp (%dx%d)\n", ++ ovl->id, ++ info->pos_x, info->pos_y, ++ info->width, info->height, ++ info->out_width, info->out_height, ++ dw, dh); ++ ++ if ((ovl->caps & OMAP_DSS_OVL_CAP_SCALE) == 0) { ++ outw = info->width; ++ outh = info->height; ++ } else { ++ if (info->out_width == 0) ++ outw = info->width; ++ else ++ outw = info->out_width; ++ ++ if (info->out_height == 0) ++ outh = info->height; ++ else ++ outh = info->out_height; ++ } ++ ++ if (dw < info->pos_x + outw) { ++ DSSDBG("check_overlay failed 1: %d < %d + %d\n", ++ dw, info->pos_x, outw); ++ return -EINVAL; ++ } ++ ++ if (dh < info->pos_y + outh) { ++ DSSDBG("check_overlay failed 2: %d < %d + %d\n", ++ dh, info->pos_y, outh); ++ return -EINVAL; ++ } ++ ++ if ((ovl->supported_modes & info->color_mode) == 0) { ++ DSSERR("overlay doesn't support mode %d\n", info->color_mode); ++ return -EINVAL; ++ } ++ ++ return 0; ++} ++ ++static int dss_ovl_set_overlay_info(struct omap_overlay *ovl, ++ struct omap_overlay_info *info) ++{ ++ int r; ++ struct omap_overlay_info old_info; ++ ++ old_info = ovl->info; ++ ovl->info = *info; ++ ++ if (ovl->manager) { ++ r = dss_check_overlay(ovl, ovl->manager->display); ++ if (r) { ++ ovl->info = old_info; ++ return r; ++ } ++ } ++ ++ return 0; ++} ++ ++static void dss_ovl_get_overlay_info(struct omap_overlay *ovl, ++ struct omap_overlay_info *info) ++{ ++ *info = ovl->info; ++} ++ ++static int omap_dss_set_manager(struct omap_overlay *ovl, ++ struct omap_overlay_manager *mgr) ++{ ++ int r; ++ ++ if (ovl->manager) { ++ DSSERR("overlay '%s' already has a manager '%s'\n", ++ ovl->name, ovl->manager->name); ++ } ++ ++ r = dss_check_overlay(ovl, mgr->display); ++ if (r) ++ return r; ++ ++ ovl->manager = mgr; ++ ++ return 0; ++} ++ ++static int omap_dss_unset_manager(struct omap_overlay *ovl) ++{ ++ if (!ovl->manager) { ++ DSSERR("failed to detach overlay: manager not set\n"); ++ return -EINVAL; ++ } ++ ++ ovl->manager = NULL; ++ ++ return 0; ++} ++ ++int omap_dss_get_num_overlays(void) ++{ ++ return num_overlays; ++} ++EXPORT_SYMBOL(omap_dss_get_num_overlays); ++ ++struct omap_overlay *omap_dss_get_overlay(int num) ++{ ++ int i = 0; ++ struct omap_overlay *ovl; ++ ++ list_for_each_entry(ovl, &overlay_list, list) { ++ if (i++ == num) ++ return ovl; ++ } ++ ++ return NULL; ++} ++EXPORT_SYMBOL(omap_dss_get_overlay); ++ ++static void omap_dss_add_overlay(struct omap_overlay *overlay) ++{ ++ ++num_overlays; ++ list_add_tail(&overlay->list, &overlay_list); ++} ++ ++static struct omap_overlay *dispc_overlays[3]; ++ ++void dss_overlay_setup_dispc_manager(struct omap_overlay_manager *mgr) ++{ ++ mgr->num_overlays = 3; ++ mgr->overlays = dispc_overlays; ++} ++ ++void dss_init_overlays(struct platform_device *pdev, const char *def_disp_name) ++{ ++ int i, r; ++ struct omap_overlay_manager *lcd_mgr; ++ struct omap_overlay_manager *tv_mgr; ++ struct omap_overlay_manager *def_mgr = NULL; ++ ++ INIT_LIST_HEAD(&overlay_list); ++ ++ num_overlays = 0; ++ ++ for (i = 0; i < 3; ++i) { ++ struct omap_overlay *ovl; ++ ovl = kzalloc(sizeof(*ovl), GFP_KERNEL); ++ ++ BUG_ON(ovl == NULL); ++ ++ switch (i) { ++ case 0: ++ ovl->name = "gfx"; ++ ovl->id = OMAP_DSS_GFX; ++ ovl->supported_modes = OMAP_DSS_COLOR_GFX_OMAP3; ++ ovl->caps = OMAP_DSS_OVL_CAP_DISPC; ++ break; ++ case 1: ++ ovl->name = "vid1"; ++ ovl->id = OMAP_DSS_VIDEO1; ++ ovl->supported_modes = OMAP_DSS_COLOR_VID_OMAP3; ++ ovl->caps = OMAP_DSS_OVL_CAP_SCALE | ++ OMAP_DSS_OVL_CAP_DISPC; ++ break; ++ case 2: ++ ovl->name = "vid2"; ++ ovl->id = OMAP_DSS_VIDEO2; ++ ovl->supported_modes = OMAP_DSS_COLOR_VID_OMAP3; ++ ovl->caps = OMAP_DSS_OVL_CAP_SCALE | ++ OMAP_DSS_OVL_CAP_DISPC; ++ break; ++ } ++ ++ ovl->set_manager = &omap_dss_set_manager; ++ ovl->unset_manager = &omap_dss_unset_manager; ++ ovl->set_overlay_info = &dss_ovl_set_overlay_info; ++ ovl->get_overlay_info = &dss_ovl_get_overlay_info; ++ ++ omap_dss_add_overlay(ovl); ++ ++ r = kobject_init_and_add(&ovl->kobj, &overlay_ktype, ++ &pdev->dev.kobj, "overlay%d", i); ++ ++ if (r) { ++ DSSERR("failed to create sysfs file\n"); ++ continue; ++ } ++ ++ dispc_overlays[i] = ovl; ++ } ++ ++ lcd_mgr = omap_dss_get_overlay_manager(OMAP_DSS_OVL_MGR_LCD); ++ tv_mgr = omap_dss_get_overlay_manager(OMAP_DSS_OVL_MGR_TV); ++ ++ if (def_disp_name) { ++ for (i = 0; i < omap_dss_get_num_displays() ; i++) { ++ struct omap_display *display = dss_get_display(i); ++ ++ if (strcmp(display->name, def_disp_name) == 0) { ++ if (display->type != OMAP_DISPLAY_TYPE_VENC) { ++ lcd_mgr->set_display(lcd_mgr, display); ++ def_mgr = lcd_mgr; ++ } else { ++ lcd_mgr->set_display(tv_mgr, display); ++ def_mgr = tv_mgr; ++ } ++ ++ break; ++ } ++ } ++ ++ if (!def_mgr) ++ DSSWARN("default display %s not found\n", ++ def_disp_name); ++ } ++ ++ if (def_mgr != lcd_mgr) { ++ /* connect lcd manager to first non-VENC display found */ ++ for (i = 0; i < omap_dss_get_num_displays(); i++) { ++ struct omap_display *display = dss_get_display(i); ++ if (display->type != OMAP_DISPLAY_TYPE_VENC) { ++ lcd_mgr->set_display(lcd_mgr, display); ++ ++ if (!def_mgr) ++ def_mgr = lcd_mgr; ++ ++ break; ++ } ++ } ++ } ++ ++ if (def_mgr != tv_mgr) { ++ /* connect tv manager to first VENC display found */ ++ for (i = 0; i < omap_dss_get_num_displays(); i++) { ++ struct omap_display *display = dss_get_display(i); ++ if (display->type == OMAP_DISPLAY_TYPE_VENC) { ++ tv_mgr->set_display(tv_mgr, display); ++ ++ if (!def_mgr) ++ def_mgr = tv_mgr; ++ ++ break; ++ } ++ } ++ } ++ ++ /* connect all dispc overlays to def_mgr */ ++ if (def_mgr) { ++ for (i = 0; i < 3; i++) { ++ struct omap_overlay *ovl; ++ ovl = omap_dss_get_overlay(i); ++ omap_dss_set_manager(ovl, def_mgr); ++ } ++ } ++ ++#ifdef L4_EXAMPLE ++ /* setup L4 overlay as an example */ ++ { ++ static struct omap_overlay ovl = { ++ .name = "l4-ovl", ++ .supported_modes = OMAP_DSS_COLOR_RGB24U, ++ .set_manager = &omap_dss_set_manager, ++ .unset_manager = &omap_dss_unset_manager, ++ .setup_input = &omap_dss_setup_overlay_input, ++ .setup_output = &omap_dss_setup_overlay_output, ++ .enable = &omap_dss_enable_overlay, ++ }; ++ ++ static struct omap_overlay_manager mgr = { ++ .name = "l4", ++ .num_overlays = 1, ++ .overlays = &ovl, ++ .set_display = &omap_dss_set_display, ++ .unset_display = &omap_dss_unset_display, ++ .apply = &ovl_mgr_apply_l4, ++ .supported_displays = ++ OMAP_DISPLAY_TYPE_DBI | OMAP_DISPLAY_TYPE_DSI, ++ }; ++ ++ omap_dss_add_overlay(&ovl); ++ omap_dss_add_overlay_manager(&mgr); ++ omap_dss_set_manager(&ovl, &mgr); ++ } ++#endif ++} ++ ++void dss_uninit_overlays(struct platform_device *pdev) ++{ ++ struct omap_overlay *ovl; ++ ++ while (!list_empty(&overlay_list)) { ++ ovl = list_first_entry(&overlay_list, ++ struct omap_overlay, list); ++ list_del(&ovl->list); ++ kobject_del(&ovl->kobj); ++ kobject_put(&ovl->kobj); ++ kfree(ovl); ++ } ++ ++ num_overlays = 0; ++} ++ +diff --git a/drivers/video/omap2/dss/rfbi.c b/drivers/video/omap2/dss/rfbi.c +new file mode 100644 +index 0000000..3e9ae1e +--- /dev/null ++++ b/drivers/video/omap2/dss/rfbi.c +@@ -0,0 +1,1304 @@ ++/* ++ * linux/drivers/video/omap2/dss/rfbi.c ++ * ++ * Copyright (C) 2009 Nokia Corporation ++ * Author: Tomi Valkeinen <tomi.valkeinen@nokia.com> ++ * ++ * Some code and ideas taken from drivers/video/omap/ driver ++ * by Imre Deak. ++ * ++ * This program is free software; you can redistribute it and/or modify it ++ * under the terms of the GNU General Public License version 2 as published by ++ * the Free Software Foundation. ++ * ++ * This program is distributed in the hope that it will be useful, but WITHOUT ++ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or ++ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for ++ * more details. ++ * ++ * You should have received a copy of the GNU General Public License along with ++ * this program. If not, see <http://www.gnu.org/licenses/>. ++ */ ++ ++#define DSS_SUBSYS_NAME "RFBI" ++ ++#include <linux/kernel.h> ++#include <linux/dma-mapping.h> ++#include <linux/vmalloc.h> ++#include <linux/clk.h> ++#include <linux/io.h> ++#include <linux/delay.h> ++#include <linux/kfifo.h> ++#include <linux/ktime.h> ++#include <linux/hrtimer.h> ++#include <linux/seq_file.h> ++ ++#include <mach/board.h> ++#include <mach/display.h> ++#include "dss.h" ++ ++/*#define MEASURE_PERF*/ ++ ++#define RFBI_BASE 0x48050800 ++ ++struct rfbi_reg { u16 idx; }; ++ ++#define RFBI_REG(idx) ((const struct rfbi_reg) { idx }) ++ ++#define RFBI_REVISION RFBI_REG(0x0000) ++#define RFBI_SYSCONFIG RFBI_REG(0x0010) ++#define RFBI_SYSSTATUS RFBI_REG(0x0014) ++#define RFBI_CONTROL RFBI_REG(0x0040) ++#define RFBI_PIXEL_CNT RFBI_REG(0x0044) ++#define RFBI_LINE_NUMBER RFBI_REG(0x0048) ++#define RFBI_CMD RFBI_REG(0x004c) ++#define RFBI_PARAM RFBI_REG(0x0050) ++#define RFBI_DATA RFBI_REG(0x0054) ++#define RFBI_READ RFBI_REG(0x0058) ++#define RFBI_STATUS RFBI_REG(0x005c) ++ ++#define RFBI_CONFIG(n) RFBI_REG(0x0060 + (n)*0x18) ++#define RFBI_ONOFF_TIME(n) RFBI_REG(0x0064 + (n)*0x18) ++#define RFBI_CYCLE_TIME(n) RFBI_REG(0x0068 + (n)*0x18) ++#define RFBI_DATA_CYCLE1(n) RFBI_REG(0x006c + (n)*0x18) ++#define RFBI_DATA_CYCLE2(n) RFBI_REG(0x0070 + (n)*0x18) ++#define RFBI_DATA_CYCLE3(n) RFBI_REG(0x0074 + (n)*0x18) ++ ++#define RFBI_VSYNC_WIDTH RFBI_REG(0x0090) ++#define RFBI_HSYNC_WIDTH RFBI_REG(0x0094) ++ ++#define RFBI_CMD_FIFO_LEN_BYTES (16 * sizeof(struct update_param)) ++ ++#define REG_FLD_MOD(idx, val, start, end) \ ++ rfbi_write_reg(idx, FLD_MOD(rfbi_read_reg(idx), val, start, end)) ++ ++/* To work around an RFBI transfer rate limitation */ ++#define OMAP_RFBI_RATE_LIMIT 1 ++ ++enum omap_rfbi_cycleformat { ++ OMAP_DSS_RFBI_CYCLEFORMAT_1_1 = 0, ++ OMAP_DSS_RFBI_CYCLEFORMAT_2_1 = 1, ++ OMAP_DSS_RFBI_CYCLEFORMAT_3_1 = 2, ++ OMAP_DSS_RFBI_CYCLEFORMAT_3_2 = 3, ++}; ++ ++enum omap_rfbi_datatype { ++ OMAP_DSS_RFBI_DATATYPE_12 = 0, ++ OMAP_DSS_RFBI_DATATYPE_16 = 1, ++ OMAP_DSS_RFBI_DATATYPE_18 = 2, ++ OMAP_DSS_RFBI_DATATYPE_24 = 3, ++}; ++ ++enum omap_rfbi_parallelmode { ++ OMAP_DSS_RFBI_PARALLELMODE_8 = 0, ++ OMAP_DSS_RFBI_PARALLELMODE_9 = 1, ++ OMAP_DSS_RFBI_PARALLELMODE_12 = 2, ++ OMAP_DSS_RFBI_PARALLELMODE_16 = 3, ++}; ++ ++enum update_cmd { ++ RFBI_CMD_UPDATE = 0, ++ RFBI_CMD_SYNC = 1, ++}; ++ ++static int rfbi_convert_timings(struct rfbi_timings *t); ++static void rfbi_get_clk_info(u32 *clk_period, u32 *max_clk_div); ++static void process_cmd_fifo(void); ++ ++static struct { ++ void __iomem *base; ++ ++ unsigned long l4_khz; ++ ++ enum omap_rfbi_datatype datatype; ++ enum omap_rfbi_parallelmode parallelmode; ++ ++ enum omap_rfbi_te_mode te_mode; ++ int te_enabled; ++ ++ void (*framedone_callback)(void *data); ++ void *framedone_callback_data; ++ ++ struct omap_display *display[2]; ++ ++ struct kfifo *cmd_fifo; ++ spinlock_t cmd_lock; ++ struct completion cmd_done; ++ atomic_t cmd_fifo_full; ++ atomic_t cmd_pending; ++#ifdef MEASURE_PERF ++ unsigned perf_bytes; ++ ktime_t perf_setup_time; ++ ktime_t perf_start_time; ++#endif ++} rfbi; ++ ++struct update_region { ++ u16 x; ++ u16 y; ++ u16 w; ++ u16 h; ++}; ++ ++struct update_param { ++ u8 rfbi_module; ++ u8 cmd; ++ ++ union { ++ struct update_region r; ++ struct completion *sync; ++ } par; ++}; ++ ++static inline void rfbi_write_reg(const struct rfbi_reg idx, u32 val) ++{ ++ __raw_writel(val, rfbi.base + idx.idx); ++} ++ ++static inline u32 rfbi_read_reg(const struct rfbi_reg idx) ++{ ++ return __raw_readl(rfbi.base + idx.idx); ++} ++ ++static void rfbi_enable_clocks(bool enable) ++{ ++ if (enable) ++ dss_clk_enable(DSS_CLK_ICK | DSS_CLK_FCK1); ++ else ++ dss_clk_disable(DSS_CLK_ICK | DSS_CLK_FCK1); ++} ++ ++void omap_rfbi_write_command(const void *buf, u32 len) ++{ ++ rfbi_enable_clocks(1); ++ switch (rfbi.parallelmode) { ++ case OMAP_DSS_RFBI_PARALLELMODE_8: ++ { ++ const u8 *b = buf; ++ for (; len; len--) ++ rfbi_write_reg(RFBI_CMD, *b++); ++ break; ++ } ++ ++ case OMAP_DSS_RFBI_PARALLELMODE_16: ++ { ++ const u16 *w = buf; ++ BUG_ON(len & 1); ++ for (; len; len -= 2) ++ rfbi_write_reg(RFBI_CMD, *w++); ++ break; ++ } ++ ++ case OMAP_DSS_RFBI_PARALLELMODE_9: ++ case OMAP_DSS_RFBI_PARALLELMODE_12: ++ default: ++ BUG(); ++ } ++ rfbi_enable_clocks(0); ++} ++EXPORT_SYMBOL(omap_rfbi_write_command); ++ ++void omap_rfbi_read_data(void *buf, u32 len) ++{ ++ rfbi_enable_clocks(1); ++ switch (rfbi.parallelmode) { ++ case OMAP_DSS_RFBI_PARALLELMODE_8: ++ { ++ u8 *b = buf; ++ for (; len; len--) { ++ rfbi_write_reg(RFBI_READ, 0); ++ *b++ = rfbi_read_reg(RFBI_READ); ++ } ++ break; ++ } ++ ++ case OMAP_DSS_RFBI_PARALLELMODE_16: ++ { ++ u16 *w = buf; ++ BUG_ON(len & ~1); ++ for (; len; len -= 2) { ++ rfbi_write_reg(RFBI_READ, 0); ++ *w++ = rfbi_read_reg(RFBI_READ); ++ } ++ break; ++ } ++ ++ case OMAP_DSS_RFBI_PARALLELMODE_9: ++ case OMAP_DSS_RFBI_PARALLELMODE_12: ++ default: ++ BUG(); ++ } ++ rfbi_enable_clocks(0); ++} ++EXPORT_SYMBOL(omap_rfbi_read_data); ++ ++void omap_rfbi_write_data(const void *buf, u32 len) ++{ ++ rfbi_enable_clocks(1); ++ switch (rfbi.parallelmode) { ++ case OMAP_DSS_RFBI_PARALLELMODE_8: ++ { ++ const u8 *b = buf; ++ for (; len; len--) ++ rfbi_write_reg(RFBI_PARAM, *b++); ++ break; ++ } ++ ++ case OMAP_DSS_RFBI_PARALLELMODE_16: ++ { ++ const u16 *w = buf; ++ BUG_ON(len & 1); ++ for (; len; len -= 2) ++ rfbi_write_reg(RFBI_PARAM, *w++); ++ break; ++ } ++ ++ case OMAP_DSS_RFBI_PARALLELMODE_9: ++ case OMAP_DSS_RFBI_PARALLELMODE_12: ++ default: ++ BUG(); ++ ++ } ++ rfbi_enable_clocks(0); ++} ++EXPORT_SYMBOL(omap_rfbi_write_data); ++ ++void omap_rfbi_write_pixels(const void __iomem *buf, int scr_width, ++ u16 x, u16 y, ++ u16 w, u16 h) ++{ ++ int start_offset = scr_width * y + x; ++ int horiz_offset = scr_width - w; ++ int i; ++ ++ rfbi_enable_clocks(1); ++ ++ if (rfbi.datatype == OMAP_DSS_RFBI_DATATYPE_16 && ++ rfbi.parallelmode == OMAP_DSS_RFBI_PARALLELMODE_8) { ++ const u16 __iomem *pd = buf; ++ pd += start_offset; ++ ++ for (; h; --h) { ++ for (i = 0; i < w; ++i) { ++ const u8 __iomem *b = (const u8 __iomem *)pd; ++ rfbi_write_reg(RFBI_PARAM, __raw_readb(b+1)); ++ rfbi_write_reg(RFBI_PARAM, __raw_readb(b+0)); ++ ++pd; ++ } ++ pd += horiz_offset; ++ } ++ } else if (rfbi.datatype == OMAP_DSS_RFBI_DATATYPE_24 && ++ rfbi.parallelmode == OMAP_DSS_RFBI_PARALLELMODE_8) { ++ const u32 __iomem *pd = buf; ++ pd += start_offset; ++ ++ for (; h; --h) { ++ for (i = 0; i < w; ++i) { ++ const u8 __iomem *b = (const u8 __iomem *)pd; ++ rfbi_write_reg(RFBI_PARAM, __raw_readb(b+2)); ++ rfbi_write_reg(RFBI_PARAM, __raw_readb(b+1)); ++ rfbi_write_reg(RFBI_PARAM, __raw_readb(b+0)); ++ ++pd; ++ } ++ pd += horiz_offset; ++ } ++ } else if (rfbi.datatype == OMAP_DSS_RFBI_DATATYPE_16 && ++ rfbi.parallelmode == OMAP_DSS_RFBI_PARALLELMODE_16) { ++ const u16 __iomem *pd = buf; ++ pd += start_offset; ++ ++ for (; h; --h) { ++ for (i = 0; i < w; ++i) { ++ rfbi_write_reg(RFBI_PARAM, __raw_readw(pd)); ++ ++pd; ++ } ++ pd += horiz_offset; ++ } ++ } else { ++ BUG(); ++ } ++ ++ rfbi_enable_clocks(0); ++} ++EXPORT_SYMBOL(omap_rfbi_write_pixels); ++ ++#ifdef MEASURE_PERF ++static void perf_mark_setup(void) ++{ ++ rfbi.perf_setup_time = ktime_get(); ++} ++ ++static void perf_mark_start(void) ++{ ++ rfbi.perf_start_time = ktime_get(); ++} ++ ++static void perf_show(const char *name) ++{ ++ ktime_t t, setup_time, trans_time; ++ u32 total_bytes; ++ u32 setup_us, trans_us, total_us; ++ ++ t = ktime_get(); ++ ++ setup_time = ktime_sub(rfbi.perf_start_time, rfbi.perf_setup_time); ++ setup_us = (u32)ktime_to_us(setup_time); ++ if (setup_us == 0) ++ setup_us = 1; ++ ++ trans_time = ktime_sub(t, rfbi.perf_start_time); ++ trans_us = (u32)ktime_to_us(trans_time); ++ if (trans_us == 0) ++ trans_us = 1; ++ ++ total_us = setup_us + trans_us; ++ ++ total_bytes = rfbi.perf_bytes; ++ ++ DSSINFO("%s update %u us + %u us = %u us (%uHz), %u bytes, " ++ "%u kbytes/sec\n", ++ name, ++ setup_us, ++ trans_us, ++ total_us, ++ 1000*1000 / total_us, ++ total_bytes, ++ total_bytes * 1000 / total_us); ++} ++#else ++#define perf_mark_setup() ++#define perf_mark_start() ++#define perf_show(x) ++#endif ++ ++void rfbi_transfer_area(u16 width, u16 height, ++ void (callback)(void *data), void *data) ++{ ++ u32 l; ++ ++ /*BUG_ON(callback == 0);*/ ++ BUG_ON(rfbi.framedone_callback != NULL); ++ ++ DSSDBG("rfbi_transfer_area %dx%d\n", width, height); ++ ++ dispc_set_lcd_size(width, height); ++ ++ dispc_enable_lcd_out(1); ++ ++ rfbi.framedone_callback = callback; ++ rfbi.framedone_callback_data = data; ++ ++ rfbi_enable_clocks(1); ++ ++ rfbi_write_reg(RFBI_PIXEL_CNT, width * height); ++ ++ l = rfbi_read_reg(RFBI_CONTROL); ++ l = FLD_MOD(l, 1, 0, 0); /* enable */ ++ if (!rfbi.te_enabled) ++ l = FLD_MOD(l, 1, 4, 4); /* ITE */ ++ ++ perf_mark_start(); ++ ++ rfbi_write_reg(RFBI_CONTROL, l); ++} ++ ++static void framedone_callback(void *data, u32 mask) ++{ ++ void (*callback)(void *data); ++ ++ DSSDBG("FRAMEDONE\n"); ++ ++ perf_show("DISPC"); ++ ++ REG_FLD_MOD(RFBI_CONTROL, 0, 0, 0); ++ ++ rfbi_enable_clocks(0); ++ ++ callback = rfbi.framedone_callback; ++ rfbi.framedone_callback = NULL; ++ ++ /*callback(rfbi.framedone_callback_data);*/ ++ ++ atomic_set(&rfbi.cmd_pending, 0); ++ ++ process_cmd_fifo(); ++} ++ ++#if 1 /* VERBOSE */ ++static void rfbi_print_timings(void) ++{ ++ u32 l; ++ u32 time; ++ ++ l = rfbi_read_reg(RFBI_CONFIG(0)); ++ time = 1000000000 / rfbi.l4_khz; ++ if (l & (1 << 4)) ++ time *= 2; ++ ++ DSSDBG("Tick time %u ps\n", time); ++ l = rfbi_read_reg(RFBI_ONOFF_TIME(0)); ++ DSSDBG("CSONTIME %d, CSOFFTIME %d, WEONTIME %d, WEOFFTIME %d, " ++ "REONTIME %d, REOFFTIME %d\n", ++ l & 0x0f, (l >> 4) & 0x3f, (l >> 10) & 0x0f, (l >> 14) & 0x3f, ++ (l >> 20) & 0x0f, (l >> 24) & 0x3f); ++ ++ l = rfbi_read_reg(RFBI_CYCLE_TIME(0)); ++ DSSDBG("WECYCLETIME %d, RECYCLETIME %d, CSPULSEWIDTH %d, " ++ "ACCESSTIME %d\n", ++ (l & 0x3f), (l >> 6) & 0x3f, (l >> 12) & 0x3f, ++ (l >> 22) & 0x3f); ++} ++#else ++static void rfbi_print_timings(void) {} ++#endif ++ ++ ++ ++ ++static u32 extif_clk_period; ++ ++static inline unsigned long round_to_extif_ticks(unsigned long ps, int div) ++{ ++ int bus_tick = extif_clk_period * div; ++ return (ps + bus_tick - 1) / bus_tick * bus_tick; ++} ++ ++static int calc_reg_timing(struct rfbi_timings *t, int div) ++{ ++ t->clk_div = div; ++ ++ t->cs_on_time = round_to_extif_ticks(t->cs_on_time, div); ++ ++ t->we_on_time = round_to_extif_ticks(t->we_on_time, div); ++ t->we_off_time = round_to_extif_ticks(t->we_off_time, div); ++ t->we_cycle_time = round_to_extif_ticks(t->we_cycle_time, div); ++ ++ t->re_on_time = round_to_extif_ticks(t->re_on_time, div); ++ t->re_off_time = round_to_extif_ticks(t->re_off_time, div); ++ t->re_cycle_time = round_to_extif_ticks(t->re_cycle_time, div); ++ ++ t->access_time = round_to_extif_ticks(t->access_time, div); ++ t->cs_off_time = round_to_extif_ticks(t->cs_off_time, div); ++ t->cs_pulse_width = round_to_extif_ticks(t->cs_pulse_width, div); ++ ++ DSSDBG("[reg]cson %d csoff %d reon %d reoff %d\n", ++ t->cs_on_time, t->cs_off_time, t->re_on_time, t->re_off_time); ++ DSSDBG("[reg]weon %d weoff %d recyc %d wecyc %d\n", ++ t->we_on_time, t->we_off_time, t->re_cycle_time, ++ t->we_cycle_time); ++ DSSDBG("[reg]rdaccess %d cspulse %d\n", ++ t->access_time, t->cs_pulse_width); ++ ++ return rfbi_convert_timings(t); ++} ++ ++static int calc_extif_timings(struct rfbi_timings *t) ++{ ++ u32 max_clk_div; ++ int div; ++ ++ rfbi_get_clk_info(&extif_clk_period, &max_clk_div); ++ for (div = 1; div <= max_clk_div; div++) { ++ if (calc_reg_timing(t, div) == 0) ++ break; ++ } ++ ++ if (div <= max_clk_div) ++ return 0; ++ ++ DSSERR("can't setup timings\n"); ++ return -1; ++} ++ ++ ++void rfbi_set_timings(int rfbi_module, struct rfbi_timings *t) ++{ ++ int r; ++ ++ if (!t->converted) { ++ r = calc_extif_timings(t); ++ if (r < 0) ++ DSSERR("Failed to calc timings\n"); ++ } ++ ++ BUG_ON(!t->converted); ++ ++ rfbi_enable_clocks(1); ++ rfbi_write_reg(RFBI_ONOFF_TIME(rfbi_module), t->tim[0]); ++ rfbi_write_reg(RFBI_CYCLE_TIME(rfbi_module), t->tim[1]); ++ ++ /* TIMEGRANULARITY */ ++ REG_FLD_MOD(RFBI_CONFIG(rfbi_module), ++ (t->tim[2] ? 1 : 0), 4, 4); ++ ++ rfbi_print_timings(); ++ rfbi_enable_clocks(0); ++} ++ ++static int ps_to_rfbi_ticks(int time, int div) ++{ ++ unsigned long tick_ps; ++ int ret; ++ ++ /* Calculate in picosecs to yield more exact results */ ++ tick_ps = 1000000000 / (rfbi.l4_khz) * div; ++ ++ ret = (time + tick_ps - 1) / tick_ps; ++ ++ return ret; ++} ++ ++#ifdef OMAP_RFBI_RATE_LIMIT ++unsigned long rfbi_get_max_tx_rate(void) ++{ ++ unsigned long l4_rate, dss1_rate; ++ int min_l4_ticks = 0; ++ int i; ++ ++ /* According to TI this can't be calculated so make the ++ * adjustments for a couple of known frequencies and warn for ++ * others. ++ */ ++ static const struct { ++ unsigned long l4_clk; /* HZ */ ++ unsigned long dss1_clk; /* HZ */ ++ unsigned long min_l4_ticks; ++ } ftab[] = { ++ { 55, 132, 7, }, /* 7.86 MPix/s */ ++ { 110, 110, 12, }, /* 9.16 MPix/s */ ++ { 110, 132, 10, }, /* 11 Mpix/s */ ++ { 120, 120, 10, }, /* 12 Mpix/s */ ++ { 133, 133, 10, }, /* 13.3 Mpix/s */ ++ }; ++ ++ l4_rate = rfbi.l4_khz / 1000; ++ dss1_rate = dss_clk_get_rate(DSS_CLK_FCK1) / 1000000; ++ ++ for (i = 0; i < ARRAY_SIZE(ftab); i++) { ++ /* Use a window instead of an exact match, to account ++ * for different DPLL multiplier / divider pairs. ++ */ ++ if (abs(ftab[i].l4_clk - l4_rate) < 3 && ++ abs(ftab[i].dss1_clk - dss1_rate) < 3) { ++ min_l4_ticks = ftab[i].min_l4_ticks; ++ break; ++ } ++ } ++ if (i == ARRAY_SIZE(ftab)) { ++ /* Can't be sure, return anyway the maximum not ++ * rate-limited. This might cause a problem only for the ++ * tearing synchronisation. ++ */ ++ DSSERR("can't determine maximum RFBI transfer rate\n"); ++ return rfbi.l4_khz * 1000; ++ } ++ return rfbi.l4_khz * 1000 / min_l4_ticks; ++} ++#else ++int rfbi_get_max_tx_rate(void) ++{ ++ return rfbi.l4_khz * 1000; ++} ++#endif ++ ++static void rfbi_get_clk_info(u32 *clk_period, u32 *max_clk_div) ++{ ++ *clk_period = 1000000000 / rfbi.l4_khz; ++ *max_clk_div = 2; ++} ++ ++static int rfbi_convert_timings(struct rfbi_timings *t) ++{ ++ u32 l; ++ int reon, reoff, weon, weoff, cson, csoff, cs_pulse; ++ int actim, recyc, wecyc; ++ int div = t->clk_div; ++ ++ if (div <= 0 || div > 2) ++ return -1; ++ ++ /* Make sure that after conversion it still holds that: ++ * weoff > weon, reoff > reon, recyc >= reoff, wecyc >= weoff, ++ * csoff > cson, csoff >= max(weoff, reoff), actim > reon ++ */ ++ weon = ps_to_rfbi_ticks(t->we_on_time, div); ++ weoff = ps_to_rfbi_ticks(t->we_off_time, div); ++ if (weoff <= weon) ++ weoff = weon + 1; ++ if (weon > 0x0f) ++ return -1; ++ if (weoff > 0x3f) ++ return -1; ++ ++ reon = ps_to_rfbi_ticks(t->re_on_time, div); ++ reoff = ps_to_rfbi_ticks(t->re_off_time, div); ++ if (reoff <= reon) ++ reoff = reon + 1; ++ if (reon > 0x0f) ++ return -1; ++ if (reoff > 0x3f) ++ return -1; ++ ++ cson = ps_to_rfbi_ticks(t->cs_on_time, div); ++ csoff = ps_to_rfbi_ticks(t->cs_off_time, div); ++ if (csoff <= cson) ++ csoff = cson + 1; ++ if (csoff < max(weoff, reoff)) ++ csoff = max(weoff, reoff); ++ if (cson > 0x0f) ++ return -1; ++ if (csoff > 0x3f) ++ return -1; ++ ++ l = cson; ++ l |= csoff << 4; ++ l |= weon << 10; ++ l |= weoff << 14; ++ l |= reon << 20; ++ l |= reoff << 24; ++ ++ t->tim[0] = l; ++ ++ actim = ps_to_rfbi_ticks(t->access_time, div); ++ if (actim <= reon) ++ actim = reon + 1; ++ if (actim > 0x3f) ++ return -1; ++ ++ wecyc = ps_to_rfbi_ticks(t->we_cycle_time, div); ++ if (wecyc < weoff) ++ wecyc = weoff; ++ if (wecyc > 0x3f) ++ return -1; ++ ++ recyc = ps_to_rfbi_ticks(t->re_cycle_time, div); ++ if (recyc < reoff) ++ recyc = reoff; ++ if (recyc > 0x3f) ++ return -1; ++ ++ cs_pulse = ps_to_rfbi_ticks(t->cs_pulse_width, div); ++ if (cs_pulse > 0x3f) ++ return -1; ++ ++ l = wecyc; ++ l |= recyc << 6; ++ l |= cs_pulse << 12; ++ l |= actim << 22; ++ ++ t->tim[1] = l; ++ ++ t->tim[2] = div - 1; ++ ++ t->converted = 1; ++ ++ return 0; ++} ++ ++/* xxx FIX module selection missing */ ++int omap_rfbi_setup_te(enum omap_rfbi_te_mode mode, ++ unsigned hs_pulse_time, unsigned vs_pulse_time, ++ int hs_pol_inv, int vs_pol_inv, int extif_div) ++{ ++ int hs, vs; ++ int min; ++ u32 l; ++ ++ hs = ps_to_rfbi_ticks(hs_pulse_time, 1); ++ vs = ps_to_rfbi_ticks(vs_pulse_time, 1); ++ if (hs < 2) ++ return -EDOM; ++ if (mode == OMAP_DSS_RFBI_TE_MODE_2) ++ min = 2; ++ else /* OMAP_DSS_RFBI_TE_MODE_1 */ ++ min = 4; ++ if (vs < min) ++ return -EDOM; ++ if (vs == hs) ++ return -EINVAL; ++ rfbi.te_mode = mode; ++ DSSDBG("setup_te: mode %d hs %d vs %d hs_inv %d vs_inv %d\n", ++ mode, hs, vs, hs_pol_inv, vs_pol_inv); ++ ++ rfbi_enable_clocks(1); ++ rfbi_write_reg(RFBI_HSYNC_WIDTH, hs); ++ rfbi_write_reg(RFBI_VSYNC_WIDTH, vs); ++ ++ l = rfbi_read_reg(RFBI_CONFIG(0)); ++ if (hs_pol_inv) ++ l &= ~(1 << 21); ++ else ++ l |= 1 << 21; ++ if (vs_pol_inv) ++ l &= ~(1 << 20); ++ else ++ l |= 1 << 20; ++ rfbi_enable_clocks(0); ++ ++ return 0; ++} ++EXPORT_SYMBOL(omap_rfbi_setup_te); ++ ++/* xxx FIX module selection missing */ ++int omap_rfbi_enable_te(bool enable, unsigned line) ++{ ++ u32 l; ++ ++ DSSDBG("te %d line %d mode %d\n", enable, line, rfbi.te_mode); ++ if (line > (1 << 11) - 1) ++ return -EINVAL; ++ ++ rfbi_enable_clocks(1); ++ l = rfbi_read_reg(RFBI_CONFIG(0)); ++ l &= ~(0x3 << 2); ++ if (enable) { ++ rfbi.te_enabled = 1; ++ l |= rfbi.te_mode << 2; ++ } else ++ rfbi.te_enabled = 0; ++ rfbi_write_reg(RFBI_CONFIG(0), l); ++ rfbi_write_reg(RFBI_LINE_NUMBER, line); ++ rfbi_enable_clocks(0); ++ ++ return 0; ++} ++EXPORT_SYMBOL(omap_rfbi_enable_te); ++ ++#if 0 ++static void rfbi_enable_config(int enable1, int enable2) ++{ ++ u32 l; ++ int cs = 0; ++ ++ if (enable1) ++ cs |= 1<<0; ++ if (enable2) ++ cs |= 1<<1; ++ ++ rfbi_enable_clocks(1); ++ ++ l = rfbi_read_reg(RFBI_CONTROL); ++ ++ l = FLD_MOD(l, cs, 3, 2); ++ l = FLD_MOD(l, 0, 1, 1); ++ ++ rfbi_write_reg(RFBI_CONTROL, l); ++ ++ ++ l = rfbi_read_reg(RFBI_CONFIG(0)); ++ l = FLD_MOD(l, 0, 3, 2); /* TRIGGERMODE: ITE */ ++ /*l |= FLD_VAL(2, 8, 7); */ /* L4FORMAT, 2pix/L4 */ ++ /*l |= FLD_VAL(0, 8, 7); */ /* L4FORMAT, 1pix/L4 */ ++ ++ l = FLD_MOD(l, 0, 16, 16); /* A0POLARITY */ ++ l = FLD_MOD(l, 1, 20, 20); /* TE_VSYNC_POLARITY */ ++ l = FLD_MOD(l, 1, 21, 21); /* HSYNCPOLARITY */ ++ ++ l = FLD_MOD(l, OMAP_DSS_RFBI_PARALLELMODE_8, 1, 0); ++ rfbi_write_reg(RFBI_CONFIG(0), l); ++ ++ rfbi_enable_clocks(0); ++} ++#endif ++ ++int rfbi_configure(int rfbi_module, int bpp, int lines) ++{ ++ u32 l; ++ int cycle1 = 0, cycle2 = 0, cycle3 = 0; ++ enum omap_rfbi_cycleformat cycleformat; ++ enum omap_rfbi_datatype datatype; ++ enum omap_rfbi_parallelmode parallelmode; ++ ++ switch (bpp) { ++ case 12: ++ datatype = OMAP_DSS_RFBI_DATATYPE_12; ++ break; ++ case 16: ++ datatype = OMAP_DSS_RFBI_DATATYPE_16; ++ break; ++ case 18: ++ datatype = OMAP_DSS_RFBI_DATATYPE_18; ++ break; ++ case 24: ++ datatype = OMAP_DSS_RFBI_DATATYPE_24; ++ break; ++ default: ++ BUG(); ++ return 1; ++ } ++ rfbi.datatype = datatype; ++ ++ switch (lines) { ++ case 8: ++ parallelmode = OMAP_DSS_RFBI_PARALLELMODE_8; ++ break; ++ case 9: ++ parallelmode = OMAP_DSS_RFBI_PARALLELMODE_9; ++ break; ++ case 12: ++ parallelmode = OMAP_DSS_RFBI_PARALLELMODE_12; ++ break; ++ case 16: ++ parallelmode = OMAP_DSS_RFBI_PARALLELMODE_16; ++ break; ++ default: ++ BUG(); ++ return 1; ++ } ++ rfbi.parallelmode = parallelmode; ++ ++ if ((bpp % lines) == 0) { ++ switch (bpp / lines) { ++ case 1: ++ cycleformat = OMAP_DSS_RFBI_CYCLEFORMAT_1_1; ++ break; ++ case 2: ++ cycleformat = OMAP_DSS_RFBI_CYCLEFORMAT_2_1; ++ break; ++ case 3: ++ cycleformat = OMAP_DSS_RFBI_CYCLEFORMAT_3_1; ++ break; ++ default: ++ BUG(); ++ return 1; ++ } ++ } else if ((2 * bpp % lines) == 0) { ++ if ((2 * bpp / lines) == 3) ++ cycleformat = OMAP_DSS_RFBI_CYCLEFORMAT_3_2; ++ else { ++ BUG(); ++ return 1; ++ } ++ } else { ++ BUG(); ++ return 1; ++ } ++ ++ switch (cycleformat) { ++ case OMAP_DSS_RFBI_CYCLEFORMAT_1_1: ++ cycle1 = lines; ++ break; ++ ++ case OMAP_DSS_RFBI_CYCLEFORMAT_2_1: ++ cycle1 = lines; ++ cycle2 = lines; ++ break; ++ ++ case OMAP_DSS_RFBI_CYCLEFORMAT_3_1: ++ cycle1 = lines; ++ cycle2 = lines; ++ cycle3 = lines; ++ break; ++ ++ case OMAP_DSS_RFBI_CYCLEFORMAT_3_2: ++ cycle1 = lines; ++ cycle2 = (lines / 2) | ((lines / 2) << 16); ++ cycle3 = (lines << 16); ++ break; ++ } ++ ++ rfbi_enable_clocks(1); ++ ++ REG_FLD_MOD(RFBI_CONTROL, 0, 3, 2); /* clear CS */ ++ ++ l = 0; ++ l |= FLD_VAL(parallelmode, 1, 0); ++ l |= FLD_VAL(0, 3, 2); /* TRIGGERMODE: ITE */ ++ l |= FLD_VAL(0, 4, 4); /* TIMEGRANULARITY */ ++ l |= FLD_VAL(datatype, 6, 5); ++ /* l |= FLD_VAL(2, 8, 7); */ /* L4FORMAT, 2pix/L4 */ ++ l |= FLD_VAL(0, 8, 7); /* L4FORMAT, 1pix/L4 */ ++ l |= FLD_VAL(cycleformat, 10, 9); ++ l |= FLD_VAL(0, 12, 11); /* UNUSEDBITS */ ++ l |= FLD_VAL(0, 16, 16); /* A0POLARITY */ ++ l |= FLD_VAL(0, 17, 17); /* REPOLARITY */ ++ l |= FLD_VAL(0, 18, 18); /* WEPOLARITY */ ++ l |= FLD_VAL(0, 19, 19); /* CSPOLARITY */ ++ l |= FLD_VAL(1, 20, 20); /* TE_VSYNC_POLARITY */ ++ l |= FLD_VAL(1, 21, 21); /* HSYNCPOLARITY */ ++ rfbi_write_reg(RFBI_CONFIG(rfbi_module), l); ++ ++ rfbi_write_reg(RFBI_DATA_CYCLE1(rfbi_module), cycle1); ++ rfbi_write_reg(RFBI_DATA_CYCLE2(rfbi_module), cycle2); ++ rfbi_write_reg(RFBI_DATA_CYCLE3(rfbi_module), cycle3); ++ ++ ++ l = rfbi_read_reg(RFBI_CONTROL); ++ l = FLD_MOD(l, rfbi_module+1, 3, 2); /* Select CSx */ ++ l = FLD_MOD(l, 0, 1, 1); /* clear bypass */ ++ rfbi_write_reg(RFBI_CONTROL, l); ++ ++ ++ DSSDBG("RFBI config: bpp %d, lines %d, cycles: 0x%x 0x%x 0x%x\n", ++ bpp, lines, cycle1, cycle2, cycle3); ++ ++ rfbi_enable_clocks(0); ++ ++ return 0; ++} ++EXPORT_SYMBOL(rfbi_configure); ++ ++static int rfbi_find_display(struct omap_display *disp) ++{ ++ if (disp == rfbi.display[0]) ++ return 0; ++ ++ if (disp == rfbi.display[1]) ++ return 1; ++ ++ BUG(); ++ return -1; ++} ++ ++ ++static void signal_fifo_waiters(void) ++{ ++ if (atomic_read(&rfbi.cmd_fifo_full) > 0) { ++ /* DSSDBG("SIGNALING: Fifo not full for waiter!\n"); */ ++ complete(&rfbi.cmd_done); ++ atomic_dec(&rfbi.cmd_fifo_full); ++ } ++} ++ ++/* returns 1 for async op, and 0 for sync op */ ++static int do_update(struct omap_display *display, struct update_region *upd) ++{ ++ u16 x = upd->x; ++ u16 y = upd->y; ++ u16 w = upd->w; ++ u16 h = upd->h; ++ ++ perf_mark_setup(); ++ ++ if (display->manager->caps & OMAP_DSS_OVL_MGR_CAP_DISPC) { ++ /*display->ctrl->enable_te(display, 1); */ ++ dispc_setup_partial_planes(display, &x, &y, &w, &h); ++ } ++ ++#ifdef MEASURE_PERF ++ rfbi.perf_bytes = w * h * 2; /* XXX always 16bit */ ++#endif ++ ++ display->ctrl->setup_update(display, x, y, w, h); ++ ++ if (display->manager->caps & OMAP_DSS_OVL_MGR_CAP_DISPC) { ++ rfbi_transfer_area(w, h, NULL, NULL); ++ return 1; ++ } else { ++ struct omap_overlay *ovl; ++ void __iomem *addr; ++ int scr_width; ++ ++ ovl = display->manager->overlays[0]; ++ scr_width = ovl->info.screen_width; ++ addr = ovl->info.vaddr; ++ ++ omap_rfbi_write_pixels(addr, scr_width, x, y, w, h); ++ ++ perf_show("L4"); ++ ++ return 0; ++ } ++} ++ ++static void process_cmd_fifo(void) ++{ ++ int len; ++ struct update_param p; ++ struct omap_display *display; ++ unsigned long flags; ++ ++ if (atomic_inc_return(&rfbi.cmd_pending) != 1) ++ return; ++ ++ while (true) { ++ spin_lock_irqsave(rfbi.cmd_fifo->lock, flags); ++ ++ len = __kfifo_get(rfbi.cmd_fifo, (unsigned char *)&p, ++ sizeof(struct update_param)); ++ if (len == 0) { ++ DSSDBG("nothing more in fifo\n"); ++ atomic_set(&rfbi.cmd_pending, 0); ++ spin_unlock_irqrestore(rfbi.cmd_fifo->lock, flags); ++ break; ++ } ++ ++ /* DSSDBG("fifo full %d\n", rfbi.cmd_fifo_full.counter);*/ ++ ++ spin_unlock_irqrestore(rfbi.cmd_fifo->lock, flags); ++ ++ BUG_ON(len != sizeof(struct update_param)); ++ BUG_ON(p.rfbi_module > 1); ++ ++ display = rfbi.display[p.rfbi_module]; ++ ++ if (p.cmd == RFBI_CMD_UPDATE) { ++ if (do_update(display, &p.par.r)) ++ break; /* async op */ ++ } else if (p.cmd == RFBI_CMD_SYNC) { ++ DSSDBG("Signaling SYNC done!\n"); ++ complete(p.par.sync); ++ } else ++ BUG(); ++ } ++ ++ signal_fifo_waiters(); ++} ++ ++static void rfbi_push_cmd(struct update_param *p) ++{ ++ int ret; ++ ++ while (1) { ++ unsigned long flags; ++ int available; ++ ++ spin_lock_irqsave(rfbi.cmd_fifo->lock, flags); ++ available = RFBI_CMD_FIFO_LEN_BYTES - ++ __kfifo_len(rfbi.cmd_fifo); ++ ++/* DSSDBG("%d bytes left in fifo\n", available); */ ++ if (available < sizeof(struct update_param)) { ++ DSSDBG("Going to wait because FIFO FULL..\n"); ++ spin_unlock_irqrestore(rfbi.cmd_fifo->lock, flags); ++ atomic_inc(&rfbi.cmd_fifo_full); ++ wait_for_completion(&rfbi.cmd_done); ++ /*DSSDBG("Woke up because fifo not full anymore\n");*/ ++ continue; ++ } ++ ++ ret = __kfifo_put(rfbi.cmd_fifo, (unsigned char *)p, ++ sizeof(struct update_param)); ++/* DSSDBG("pushed %d bytes\n", ret);*/ ++ ++ spin_unlock_irqrestore(rfbi.cmd_fifo->lock, flags); ++ ++ BUG_ON(ret != sizeof(struct update_param)); ++ ++ break; ++ } ++} ++ ++static void rfbi_push_update(int rfbi_module, int x, int y, int w, int h) ++{ ++ struct update_param p; ++ ++ p.rfbi_module = rfbi_module; ++ p.cmd = RFBI_CMD_UPDATE; ++ ++ p.par.r.x = x; ++ p.par.r.y = y; ++ p.par.r.w = w; ++ p.par.r.h = h; ++ ++ DSSDBG("RFBI pushed %d,%d %dx%d\n", x, y, w, h); ++ ++ rfbi_push_cmd(&p); ++ ++ process_cmd_fifo(); ++} ++ ++static void rfbi_push_sync(int rfbi_module, struct completion *sync_comp) ++{ ++ struct update_param p; ++ ++ p.rfbi_module = rfbi_module; ++ p.cmd = RFBI_CMD_SYNC; ++ p.par.sync = sync_comp; ++ ++ rfbi_push_cmd(&p); ++ ++ DSSDBG("RFBI sync pushed to cmd fifo\n"); ++ ++ process_cmd_fifo(); ++} ++ ++void rfbi_dump_regs(struct seq_file *s) ++{ ++#define DUMPREG(r) seq_printf(s, "%-35s %08x\n", #r, rfbi_read_reg(r)) ++ ++ dss_clk_enable(DSS_CLK_ICK | DSS_CLK_FCK1); ++ ++ DUMPREG(RFBI_REVISION); ++ DUMPREG(RFBI_SYSCONFIG); ++ DUMPREG(RFBI_SYSSTATUS); ++ DUMPREG(RFBI_CONTROL); ++ DUMPREG(RFBI_PIXEL_CNT); ++ DUMPREG(RFBI_LINE_NUMBER); ++ DUMPREG(RFBI_CMD); ++ DUMPREG(RFBI_PARAM); ++ DUMPREG(RFBI_DATA); ++ DUMPREG(RFBI_READ); ++ DUMPREG(RFBI_STATUS); ++ ++ DUMPREG(RFBI_CONFIG(0)); ++ DUMPREG(RFBI_ONOFF_TIME(0)); ++ DUMPREG(RFBI_CYCLE_TIME(0)); ++ DUMPREG(RFBI_DATA_CYCLE1(0)); ++ DUMPREG(RFBI_DATA_CYCLE2(0)); ++ DUMPREG(RFBI_DATA_CYCLE3(0)); ++ ++ DUMPREG(RFBI_CONFIG(1)); ++ DUMPREG(RFBI_ONOFF_TIME(1)); ++ DUMPREG(RFBI_CYCLE_TIME(1)); ++ DUMPREG(RFBI_DATA_CYCLE1(1)); ++ DUMPREG(RFBI_DATA_CYCLE2(1)); ++ DUMPREG(RFBI_DATA_CYCLE3(1)); ++ ++ DUMPREG(RFBI_VSYNC_WIDTH); ++ DUMPREG(RFBI_HSYNC_WIDTH); ++ ++ dss_clk_disable(DSS_CLK_ICK | DSS_CLK_FCK1); ++#undef DUMPREG ++} ++ ++int rfbi_init(void) ++{ ++ u32 rev; ++ u32 l; ++ ++ spin_lock_init(&rfbi.cmd_lock); ++ rfbi.cmd_fifo = kfifo_alloc(RFBI_CMD_FIFO_LEN_BYTES, GFP_KERNEL, ++ &rfbi.cmd_lock); ++ if (IS_ERR(rfbi.cmd_fifo)) ++ return -ENOMEM; ++ ++ init_completion(&rfbi.cmd_done); ++ atomic_set(&rfbi.cmd_fifo_full, 0); ++ atomic_set(&rfbi.cmd_pending, 0); ++ ++ rfbi.base = ioremap(RFBI_BASE, SZ_256); ++ if (!rfbi.base) { ++ DSSERR("can't ioremap RFBI\n"); ++ return -ENOMEM; ++ } ++ ++ rfbi_enable_clocks(1); ++ ++ msleep(10); ++ ++ rfbi.l4_khz = dss_clk_get_rate(DSS_CLK_ICK) / 1000; ++ ++ /* Enable autoidle and smart-idle */ ++ l = rfbi_read_reg(RFBI_SYSCONFIG); ++ l |= (1 << 0) | (2 << 3); ++ rfbi_write_reg(RFBI_SYSCONFIG, l); ++ ++ rev = rfbi_read_reg(RFBI_REVISION); ++ printk(KERN_INFO "OMAP RFBI rev %d.%d\n", ++ FLD_GET(rev, 7, 4), FLD_GET(rev, 3, 0)); ++ ++ rfbi_enable_clocks(0); ++ ++ return 0; ++} ++ ++void rfbi_exit(void) ++{ ++ DSSDBG("rfbi_exit\n"); ++ ++ kfifo_free(rfbi.cmd_fifo); ++ ++ iounmap(rfbi.base); ++} ++ ++/* struct omap_display support */ ++static int rfbi_display_update(struct omap_display *display, ++ u16 x, u16 y, u16 w, u16 h) ++{ ++ int rfbi_module; ++ ++ if (w == 0 || h == 0) ++ return 0; ++ ++ rfbi_module = rfbi_find_display(display); ++ ++ rfbi_push_update(rfbi_module, x, y, w, h); ++ ++ return 0; ++} ++ ++static int rfbi_display_sync(struct omap_display *display) ++{ ++ struct completion sync_comp; ++ int rfbi_module; ++ ++ rfbi_module = rfbi_find_display(display); ++ ++ init_completion(&sync_comp); ++ rfbi_push_sync(rfbi_module, &sync_comp); ++ DSSDBG("Waiting for SYNC to happen...\n"); ++ wait_for_completion(&sync_comp); ++ DSSDBG("Released from SYNC\n"); ++ return 0; ++} ++ ++static int rfbi_display_enable_te(struct omap_display *display, bool enable) ++{ ++ display->ctrl->enable_te(display, enable); ++ return 0; ++} ++ ++static int rfbi_display_enable(struct omap_display *display) ++{ ++ int r; ++ ++ BUG_ON(display->panel == NULL || display->ctrl == NULL); ++ ++ r = omap_dispc_register_isr(framedone_callback, NULL, ++ DISPC_IRQ_FRAMEDONE); ++ if (r) { ++ DSSERR("can't get FRAMEDONE irq\n"); ++ return r; ++ } ++ ++ dispc_set_lcd_display_type(OMAP_DSS_LCD_DISPLAY_TFT); ++ ++ dispc_set_parallel_interface_mode(OMAP_DSS_PARALLELMODE_RFBI); ++ ++ dispc_set_tft_data_lines(display->ctrl->pixel_size); ++ ++ rfbi_configure(display->hw_config.u.rfbi.channel, ++ display->ctrl->pixel_size, ++ display->hw_config.u.rfbi.data_lines); ++ ++ rfbi_set_timings(display->hw_config.u.rfbi.channel, ++ &display->ctrl->timings); ++ ++ ++ if (display->ctrl && display->ctrl->enable) { ++ r = display->ctrl->enable(display); ++ if (r) ++ goto err; ++ } ++ ++ if (display->panel && display->panel->enable) { ++ r = display->panel->enable(display); ++ if (r) ++ goto err; ++ } ++ ++ return 0; ++err: ++ return -ENODEV; ++} ++ ++static void rfbi_display_disable(struct omap_display *display) ++{ ++ display->ctrl->disable(display); ++ omap_dispc_unregister_isr(framedone_callback, NULL, ++ DISPC_IRQ_FRAMEDONE); ++} ++ ++void rfbi_init_display(struct omap_display *display) ++{ ++ display->enable = rfbi_display_enable; ++ display->disable = rfbi_display_disable; ++ display->update = rfbi_display_update; ++ display->sync = rfbi_display_sync; ++ display->enable_te = rfbi_display_enable_te; ++ ++ rfbi.display[display->hw_config.u.rfbi.channel] = display; ++ ++ display->caps = OMAP_DSS_DISPLAY_CAP_MANUAL_UPDATE; ++} +diff --git a/drivers/video/omap2/dss/sdi.c b/drivers/video/omap2/dss/sdi.c +new file mode 100644 +index 0000000..fbff2b2 +--- /dev/null ++++ b/drivers/video/omap2/dss/sdi.c +@@ -0,0 +1,245 @@ ++/* ++ * linux/drivers/video/omap2/dss/sdi.c ++ * ++ * Copyright (C) 2009 Nokia Corporation ++ * Author: Tomi Valkeinen <tomi.valkeinen@nokia.com> ++ * ++ * This program is free software; you can redistribute it and/or modify it ++ * under the terms of the GNU General Public License version 2 as published by ++ * the Free Software Foundation. ++ * ++ * This program is distributed in the hope that it will be useful, but WITHOUT ++ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or ++ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for ++ * more details. ++ * ++ * You should have received a copy of the GNU General Public License along with ++ * this program. If not, see <http://www.gnu.org/licenses/>. ++ */ ++ ++#define DSS_SUBSYS_NAME "SDI" ++ ++#include <linux/kernel.h> ++#include <linux/clk.h> ++#include <linux/delay.h> ++#include <linux/err.h> ++ ++#include <mach/board.h> ++#include <mach/display.h> ++#include "dss.h" ++ ++ ++static struct { ++ bool skip_init; ++ bool update_enabled; ++} sdi; ++ ++static void sdi_basic_init(void) ++{ ++ dispc_set_parallel_interface_mode(OMAP_DSS_PARALLELMODE_BYPASS); ++ ++ dispc_set_lcd_display_type(OMAP_DSS_LCD_DISPLAY_TFT); ++ dispc_set_tft_data_lines(24); ++ dispc_lcd_enable_signal_polarity(1); ++} ++ ++static int sdi_display_enable(struct omap_display *display) ++{ ++ struct dispc_clock_info cinfo; ++ u16 lck_div, pck_div; ++ unsigned long fck; ++ struct omap_panel *panel = display->panel; ++ unsigned long pck; ++ int r; ++ ++ if (display->state != OMAP_DSS_DISPLAY_DISABLED) { ++ DSSERR("display already enabled\n"); ++ return -EINVAL; ++ } ++ ++ /* In case of skip_init sdi_init has already enabled the clocks */ ++ if (!sdi.skip_init) ++ dss_clk_enable(DSS_CLK_ICK | DSS_CLK_FCK1); ++ ++ sdi_basic_init(); ++ ++ /* 15.5.9.1.2 */ ++ panel->config |= OMAP_DSS_LCD_RF | OMAP_DSS_LCD_ONOFF; ++ ++ dispc_set_pol_freq(panel); ++ ++ if (!sdi.skip_init) ++ r = dispc_calc_clock_div(1, panel->timings.pixel_clock * 1000, ++ &cinfo); ++ else ++ r = dispc_get_clock_div(&cinfo); ++ ++ if (r) ++ goto err0; ++ ++ fck = cinfo.fck; ++ lck_div = cinfo.lck_div; ++ pck_div = cinfo.pck_div; ++ ++ pck = fck / lck_div / pck_div / 1000; ++ ++ if (pck != panel->timings.pixel_clock) { ++ DSSWARN("Could not find exact pixel clock. Requested %d kHz, " ++ "got %lu kHz\n", ++ panel->timings.pixel_clock, pck); ++ ++ panel->timings.pixel_clock = pck; ++ } ++ ++ ++ dispc_set_lcd_timings(&panel->timings); ++ ++ r = dispc_set_clock_div(&cinfo); ++ if (r) ++ goto err1; ++ ++ if (!sdi.skip_init) { ++ dss_sdi_init(display->hw_config.u.sdi.datapairs); ++ dss_sdi_enable(); ++ mdelay(2); ++ } ++ ++ dispc_enable_lcd_out(1); ++ ++ r = panel->enable(display); ++ if (r) ++ goto err2; ++ ++ display->state = OMAP_DSS_DISPLAY_ACTIVE; ++ ++ sdi.skip_init = 0; ++ ++ return 0; ++err2: ++ dispc_enable_lcd_out(0); ++err1: ++err0: ++ dss_clk_disable(DSS_CLK_ICK | DSS_CLK_FCK1); ++ return r; ++} ++ ++static int sdi_display_resume(struct omap_display *display); ++ ++static void sdi_display_disable(struct omap_display *display) ++{ ++ if (display->state == OMAP_DSS_DISPLAY_DISABLED) ++ return; ++ ++ if (display->state == OMAP_DSS_DISPLAY_SUSPENDED) ++ sdi_display_resume(display); ++ ++ display->panel->disable(display); ++ ++ dispc_enable_lcd_out(0); ++ ++ dss_sdi_disable(); ++ ++ dss_clk_disable(DSS_CLK_ICK | DSS_CLK_FCK1); ++ ++ display->state = OMAP_DSS_DISPLAY_DISABLED; ++} ++ ++static int sdi_display_suspend(struct omap_display *display) ++{ ++ if (display->state != OMAP_DSS_DISPLAY_ACTIVE) ++ return -EINVAL; ++ ++ if (display->panel->suspend) ++ display->panel->suspend(display); ++ ++ dispc_enable_lcd_out(0); ++ ++ dss_sdi_disable(); ++ ++ dss_clk_disable(DSS_CLK_ICK | DSS_CLK_FCK1); ++ ++ display->state = OMAP_DSS_DISPLAY_SUSPENDED; ++ ++ return 0; ++} ++ ++static int sdi_display_resume(struct omap_display *display) ++{ ++ if (display->state != OMAP_DSS_DISPLAY_SUSPENDED) ++ return -EINVAL; ++ ++ dss_clk_enable(DSS_CLK_ICK | DSS_CLK_FCK1); ++ ++ dss_sdi_enable(); ++ mdelay(2); ++ ++ dispc_enable_lcd_out(1); ++ ++ if (display->panel->resume) ++ display->panel->resume(display); ++ ++ display->state = OMAP_DSS_DISPLAY_ACTIVE; ++ ++ return 0; ++} ++ ++static int sdi_display_set_update_mode(struct omap_display *display, ++ enum omap_dss_update_mode mode) ++{ ++ if (mode == OMAP_DSS_UPDATE_MANUAL) ++ return -EINVAL; ++ ++ if (mode == OMAP_DSS_UPDATE_DISABLED) { ++ dispc_enable_lcd_out(0); ++ sdi.update_enabled = 0; ++ } else { ++ dispc_enable_lcd_out(1); ++ sdi.update_enabled = 1; ++ } ++ ++ return 0; ++} ++ ++static enum omap_dss_update_mode sdi_display_get_update_mode( ++ struct omap_display *display) ++{ ++ return sdi.update_enabled ? OMAP_DSS_UPDATE_AUTO : ++ OMAP_DSS_UPDATE_DISABLED; ++} ++ ++static void sdi_get_timings(struct omap_display *display, ++ struct omap_video_timings *timings) ++{ ++ *timings = display->panel->timings; ++} ++ ++void sdi_init_display(struct omap_display *display) ++{ ++ DSSDBG("SDI init\n"); ++ ++ display->enable = sdi_display_enable; ++ display->disable = sdi_display_disable; ++ display->suspend = sdi_display_suspend; ++ display->resume = sdi_display_resume; ++ display->set_update_mode = sdi_display_set_update_mode; ++ display->get_update_mode = sdi_display_get_update_mode; ++ display->get_timings = sdi_get_timings; ++} ++ ++int sdi_init(bool skip_init) ++{ ++ /* we store this for first display enable, then clear it */ ++ sdi.skip_init = skip_init; ++ ++ /* ++ * Enable clocks already here, otherwise there would be a toggle ++ * of them until sdi_display_enable is called. ++ */ ++ if (skip_init) ++ dss_clk_enable(DSS_CLK_ICK | DSS_CLK_FCK1); ++ return 0; ++} ++ ++void sdi_exit(void) ++{ ++} +diff --git a/drivers/video/omap2/dss/venc.c b/drivers/video/omap2/dss/venc.c +new file mode 100644 +index 0000000..aceed9f +--- /dev/null ++++ b/drivers/video/omap2/dss/venc.c +@@ -0,0 +1,600 @@ ++/* ++ * linux/drivers/video/omap2/dss/venc.c ++ * ++ * Copyright (C) 2009 Nokia Corporation ++ * Author: Tomi Valkeinen <tomi.valkeinen@nokia.com> ++ * ++ * VENC settings from TI's DSS driver ++ * ++ * This program is free software; you can redistribute it and/or modify it ++ * under the terms of the GNU General Public License version 2 as published by ++ * the Free Software Foundation. ++ * ++ * This program is distributed in the hope that it will be useful, but WITHOUT ++ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or ++ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for ++ * more details. ++ * ++ * You should have received a copy of the GNU General Public License along with ++ * this program. If not, see <http://www.gnu.org/licenses/>. ++ */ ++ ++#define DSS_SUBSYS_NAME "VENC" ++ ++#include <linux/kernel.h> ++#include <linux/module.h> ++#include <linux/clk.h> ++#include <linux/err.h> ++#include <linux/io.h> ++#include <linux/mutex.h> ++#include <linux/completion.h> ++#include <linux/delay.h> ++#include <linux/string.h> ++ ++#include <mach/display.h> ++#include <mach/cpu.h> ++ ++#include "dss.h" ++ ++#define VENC_BASE 0x48050C00 ++ ++/* Venc registers */ ++#define VENC_REV_ID 0x00 ++#define VENC_STATUS 0x04 ++#define VENC_F_CONTROL 0x08 ++#define VENC_VIDOUT_CTRL 0x10 ++#define VENC_SYNC_CTRL 0x14 ++#define VENC_LLEN 0x1C ++#define VENC_FLENS 0x20 ++#define VENC_HFLTR_CTRL 0x24 ++#define VENC_CC_CARR_WSS_CARR 0x28 ++#define VENC_C_PHASE 0x2C ++#define VENC_GAIN_U 0x30 ++#define VENC_GAIN_V 0x34 ++#define VENC_GAIN_Y 0x38 ++#define VENC_BLACK_LEVEL 0x3C ++#define VENC_BLANK_LEVEL 0x40 ++#define VENC_X_COLOR 0x44 ++#define VENC_M_CONTROL 0x48 ++#define VENC_BSTAMP_WSS_DATA 0x4C ++#define VENC_S_CARR 0x50 ++#define VENC_LINE21 0x54 ++#define VENC_LN_SEL 0x58 ++#define VENC_L21__WC_CTL 0x5C ++#define VENC_HTRIGGER_VTRIGGER 0x60 ++#define VENC_SAVID__EAVID 0x64 ++#define VENC_FLEN__FAL 0x68 ++#define VENC_LAL__PHASE_RESET 0x6C ++#define VENC_HS_INT_START_STOP_X 0x70 ++#define VENC_HS_EXT_START_STOP_X 0x74 ++#define VENC_VS_INT_START_X 0x78 ++#define VENC_VS_INT_STOP_X__VS_INT_START_Y 0x7C ++#define VENC_VS_INT_STOP_Y__VS_EXT_START_X 0x80 ++#define VENC_VS_EXT_STOP_X__VS_EXT_START_Y 0x84 ++#define VENC_VS_EXT_STOP_Y 0x88 ++#define VENC_AVID_START_STOP_X 0x90 ++#define VENC_AVID_START_STOP_Y 0x94 ++#define VENC_FID_INT_START_X__FID_INT_START_Y 0xA0 ++#define VENC_FID_INT_OFFSET_Y__FID_EXT_START_X 0xA4 ++#define VENC_FID_EXT_START_Y__FID_EXT_OFFSET_Y 0xA8 ++#define VENC_TVDETGP_INT_START_STOP_X 0xB0 ++#define VENC_TVDETGP_INT_START_STOP_Y 0xB4 ++#define VENC_GEN_CTRL 0xB8 ++#define VENC_OUTPUT_CONTROL 0xC4 ++#define VENC_DAC_B__DAC_C 0xC8 ++ ++struct venc_config { ++ u32 f_control; ++ u32 vidout_ctrl; ++ u32 sync_ctrl; ++ u32 llen; ++ u32 flens; ++ u32 hfltr_ctrl; ++ u32 cc_carr_wss_carr; ++ u32 c_phase; ++ u32 gain_u; ++ u32 gain_v; ++ u32 gain_y; ++ u32 black_level; ++ u32 blank_level; ++ u32 x_color; ++ u32 m_control; ++ u32 bstamp_wss_data; ++ u32 s_carr; ++ u32 line21; ++ u32 ln_sel; ++ u32 l21__wc_ctl; ++ u32 htrigger_vtrigger; ++ u32 savid__eavid; ++ u32 flen__fal; ++ u32 lal__phase_reset; ++ u32 hs_int_start_stop_x; ++ u32 hs_ext_start_stop_x; ++ u32 vs_int_start_x; ++ u32 vs_int_stop_x__vs_int_start_y; ++ u32 vs_int_stop_y__vs_ext_start_x; ++ u32 vs_ext_stop_x__vs_ext_start_y; ++ u32 vs_ext_stop_y; ++ u32 avid_start_stop_x; ++ u32 avid_start_stop_y; ++ u32 fid_int_start_x__fid_int_start_y; ++ u32 fid_int_offset_y__fid_ext_start_x; ++ u32 fid_ext_start_y__fid_ext_offset_y; ++ u32 tvdetgp_int_start_stop_x; ++ u32 tvdetgp_int_start_stop_y; ++ u32 gen_ctrl; ++}; ++ ++/* from TRM */ ++static const struct venc_config venc_config_pal_trm = { ++ .f_control = 0, ++ .vidout_ctrl = 1, ++ .sync_ctrl = 0x40, ++ .llen = 0x35F, /* 863 */ ++ .flens = 0x270, /* 624 */ ++ .hfltr_ctrl = 0, ++ .cc_carr_wss_carr = 0x2F7225ED, ++ .c_phase = 0, ++ .gain_u = 0x111, ++ .gain_v = 0x181, ++ .gain_y = 0x140, ++ .black_level = 0x3B, ++ .blank_level = 0x3B, ++ .x_color = 0x7, ++ .m_control = 0x2, ++ .bstamp_wss_data = 0x3F, ++ .s_carr = 0x2A098ACB, ++ .line21 = 0, ++ .ln_sel = 0x01290015, ++ .l21__wc_ctl = 0x0000F603, ++ .htrigger_vtrigger = 0, ++ ++ .savid__eavid = 0x06A70108, ++ .flen__fal = 0x00180270, ++ .lal__phase_reset = 0x00040135, ++ .hs_int_start_stop_x = 0x00880358, ++ .hs_ext_start_stop_x = 0x000F035F, ++ .vs_int_start_x = 0x01A70000, ++ .vs_int_stop_x__vs_int_start_y = 0x000001A7, ++ .vs_int_stop_y__vs_ext_start_x = 0x01AF0000, ++ .vs_ext_stop_x__vs_ext_start_y = 0x000101AF, ++ .vs_ext_stop_y = 0x00000025, ++ .avid_start_stop_x = 0x03530083, ++ .avid_start_stop_y = 0x026C002E, ++ .fid_int_start_x__fid_int_start_y = 0x0001008A, ++ .fid_int_offset_y__fid_ext_start_x = 0x002E0138, ++ .fid_ext_start_y__fid_ext_offset_y = 0x01380001, ++ ++ .tvdetgp_int_start_stop_x = 0x00140001, ++ .tvdetgp_int_start_stop_y = 0x00010001, ++ .gen_ctrl = 0x00FF0000, ++}; ++ ++/* from TRM */ ++static const struct venc_config venc_config_ntsc_trm = { ++ .f_control = 0, ++ .vidout_ctrl = 1, ++ .sync_ctrl = 0x8040, ++ .llen = 0x359, ++ .flens = 0x20C, ++ .hfltr_ctrl = 0, ++ .cc_carr_wss_carr = 0x043F2631, ++ .c_phase = 0, ++ .gain_u = 0x102, ++ .gain_v = 0x16C, ++ .gain_y = 0x12F, ++ .black_level = 0x43, ++ .blank_level = 0x38, ++ .x_color = 0x7, ++ .m_control = 0x1, ++ .bstamp_wss_data = 0x38, ++ .s_carr = 0x21F07C1F, ++ .line21 = 0, ++ .ln_sel = 0x01310011, ++ .l21__wc_ctl = 0x0000F003, ++ .htrigger_vtrigger = 0, ++ ++ .savid__eavid = 0x069300F4, ++ .flen__fal = 0x0016020C, ++ .lal__phase_reset = 0x00060107, ++ .hs_int_start_stop_x = 0x008E0350, ++ .hs_ext_start_stop_x = 0x000F0359, ++ .vs_int_start_x = 0x01A00000, ++ .vs_int_stop_x__vs_int_start_y = 0x020701A0, ++ .vs_int_stop_y__vs_ext_start_x = 0x01AC0024, ++ .vs_ext_stop_x__vs_ext_start_y = 0x020D01AC, ++ .vs_ext_stop_y = 0x00000006, ++ .avid_start_stop_x = 0x03480078, ++ .avid_start_stop_y = 0x02060024, ++ .fid_int_start_x__fid_int_start_y = 0x0001008A, ++ .fid_int_offset_y__fid_ext_start_x = 0x01AC0106, ++ .fid_ext_start_y__fid_ext_offset_y = 0x01060006, ++ ++ .tvdetgp_int_start_stop_x = 0x00140001, ++ .tvdetgp_int_start_stop_y = 0x00010001, ++ .gen_ctrl = 0x00F90000, ++}; ++ ++static const struct venc_config venc_config_pal_bdghi = { ++ .f_control = 0, ++ .vidout_ctrl = 0, ++ .sync_ctrl = 0, ++ .hfltr_ctrl = 0, ++ .x_color = 0, ++ .line21 = 0, ++ .ln_sel = 21, ++ .htrigger_vtrigger = 0, ++ .tvdetgp_int_start_stop_x = 0x00140001, ++ .tvdetgp_int_start_stop_y = 0x00010001, ++ .gen_ctrl = 0x00FB0000, ++ ++ .llen = 864-1, ++ .flens = 625-1, ++ .cc_carr_wss_carr = 0x2F7625ED, ++ .c_phase = 0xDF, ++ .gain_u = 0x111, ++ .gain_v = 0x181, ++ .gain_y = 0x140, ++ .black_level = 0x3e, ++ .blank_level = 0x3e, ++ .m_control = 0<<2 | 1<<1, ++ .bstamp_wss_data = 0x42, ++ .s_carr = 0x2a098acb, ++ .l21__wc_ctl = 0<<13 | 0x16<<8 | 0<<0, ++ .savid__eavid = 0x06A70108, ++ .flen__fal = 23<<16 | 624<<0, ++ .lal__phase_reset = 2<<17 | 310<<0, ++ .hs_int_start_stop_x = 0x00920358, ++ .hs_ext_start_stop_x = 0x000F035F, ++ .vs_int_start_x = 0x1a7<<16, ++ .vs_int_stop_x__vs_int_start_y = 0x000601A7, ++ .vs_int_stop_y__vs_ext_start_x = 0x01AF0036, ++ .vs_ext_stop_x__vs_ext_start_y = 0x27101af, ++ .vs_ext_stop_y = 0x05, ++ .avid_start_stop_x = 0x03530082, ++ .avid_start_stop_y = 0x0270002E, ++ .fid_int_start_x__fid_int_start_y = 0x0005008A, ++ .fid_int_offset_y__fid_ext_start_x = 0x002E0138, ++ .fid_ext_start_y__fid_ext_offset_y = 0x01380005, ++}; ++ ++const struct omap_video_timings omap_dss_pal_timings = { ++ .x_res = 720, ++ .y_res = 574, ++ .pixel_clock = 26181, ++ .hsw = 32, ++ .hfp = 80, ++ .hbp = 48, ++ .vsw = 7, ++ .vfp = 3, ++ .vbp = 6, ++}; ++EXPORT_SYMBOL(omap_dss_pal_timings); ++ ++const struct omap_video_timings omap_dss_ntsc_timings = { ++ .x_res = 720, ++ .y_res = 482, ++ .pixel_clock = 22153, ++ .hsw = 32, ++ .hfp = 80, ++ .hbp = 48, ++ .vsw = 10, ++ .vfp = 3, ++ .vbp = 6, ++}; ++EXPORT_SYMBOL(omap_dss_ntsc_timings); ++ ++static struct { ++ void __iomem *base; ++ struct mutex venc_lock; ++} venc; ++ ++static struct omap_panel venc_panel = { ++ .name = "tv-out", ++}; ++ ++static inline void venc_write_reg(int idx, u32 val) ++{ ++ __raw_writel(val, venc.base + idx); ++} ++ ++static inline u32 venc_read_reg(int idx) ++{ ++ u32 l = __raw_readl(venc.base + idx); ++ return l; ++} ++ ++static void venc_write_config(const struct venc_config *config) ++{ ++ DSSDBG("write venc conf\n"); ++ ++ venc_write_reg(VENC_LLEN, config->llen); ++ venc_write_reg(VENC_FLENS, config->flens); ++ venc_write_reg(VENC_CC_CARR_WSS_CARR, config->cc_carr_wss_carr); ++ venc_write_reg(VENC_C_PHASE, config->c_phase); ++ venc_write_reg(VENC_GAIN_U, config->gain_u); ++ venc_write_reg(VENC_GAIN_V, config->gain_v); ++ venc_write_reg(VENC_GAIN_Y, config->gain_y); ++ venc_write_reg(VENC_BLACK_LEVEL, config->black_level); ++ venc_write_reg(VENC_BLANK_LEVEL, config->blank_level); ++ venc_write_reg(VENC_M_CONTROL, config->m_control); ++ venc_write_reg(VENC_BSTAMP_WSS_DATA, config->bstamp_wss_data); ++ venc_write_reg(VENC_S_CARR, config->s_carr); ++ venc_write_reg(VENC_L21__WC_CTL, config->l21__wc_ctl); ++ venc_write_reg(VENC_SAVID__EAVID, config->savid__eavid); ++ venc_write_reg(VENC_FLEN__FAL, config->flen__fal); ++ venc_write_reg(VENC_LAL__PHASE_RESET, config->lal__phase_reset); ++ venc_write_reg(VENC_HS_INT_START_STOP_X, config->hs_int_start_stop_x); ++ venc_write_reg(VENC_HS_EXT_START_STOP_X, config->hs_ext_start_stop_x); ++ venc_write_reg(VENC_VS_INT_START_X, config->vs_int_start_x); ++ venc_write_reg(VENC_VS_INT_STOP_X__VS_INT_START_Y, ++ config->vs_int_stop_x__vs_int_start_y); ++ venc_write_reg(VENC_VS_INT_STOP_Y__VS_EXT_START_X, ++ config->vs_int_stop_y__vs_ext_start_x); ++ venc_write_reg(VENC_VS_EXT_STOP_X__VS_EXT_START_Y, ++ config->vs_ext_stop_x__vs_ext_start_y); ++ venc_write_reg(VENC_VS_EXT_STOP_Y, config->vs_ext_stop_y); ++ venc_write_reg(VENC_AVID_START_STOP_X, config->avid_start_stop_x); ++ venc_write_reg(VENC_AVID_START_STOP_Y, config->avid_start_stop_y); ++ venc_write_reg(VENC_FID_INT_START_X__FID_INT_START_Y, ++ config->fid_int_start_x__fid_int_start_y); ++ venc_write_reg(VENC_FID_INT_OFFSET_Y__FID_EXT_START_X, ++ config->fid_int_offset_y__fid_ext_start_x); ++ venc_write_reg(VENC_FID_EXT_START_Y__FID_EXT_OFFSET_Y, ++ config->fid_ext_start_y__fid_ext_offset_y); ++ ++ venc_write_reg(VENC_DAC_B__DAC_C, venc_read_reg(VENC_DAC_B__DAC_C)); ++ venc_write_reg(VENC_VIDOUT_CTRL, config->vidout_ctrl); ++ venc_write_reg(VENC_HFLTR_CTRL, config->hfltr_ctrl); ++ venc_write_reg(VENC_X_COLOR, config->x_color); ++ venc_write_reg(VENC_LINE21, config->line21); ++ venc_write_reg(VENC_LN_SEL, config->ln_sel); ++ venc_write_reg(VENC_HTRIGGER_VTRIGGER, config->htrigger_vtrigger); ++ venc_write_reg(VENC_TVDETGP_INT_START_STOP_X, ++ config->tvdetgp_int_start_stop_x); ++ venc_write_reg(VENC_TVDETGP_INT_START_STOP_Y, ++ config->tvdetgp_int_start_stop_y); ++ venc_write_reg(VENC_GEN_CTRL, config->gen_ctrl); ++ venc_write_reg(VENC_F_CONTROL, config->f_control); ++ venc_write_reg(VENC_SYNC_CTRL, config->sync_ctrl); ++} ++ ++static void venc_reset(void) ++{ ++ int t = 1000; ++ ++ venc_write_reg(VENC_F_CONTROL, 1<<8); ++ while (venc_read_reg(VENC_F_CONTROL) & (1<<8)) { ++ if (--t == 0) { ++ DSSERR("Failed to reset venc\n"); ++ return; ++ } ++ } ++ ++ /* the magical sleep that makes things work */ ++ msleep(20); ++} ++ ++static void venc_enable_clocks(int enable) ++{ ++ if (enable) ++ dss_clk_enable(DSS_CLK_ICK | DSS_CLK_FCK1 | DSS_CLK_54M | ++ DSS_CLK_96M); ++ else ++ dss_clk_disable(DSS_CLK_ICK | DSS_CLK_FCK1 | DSS_CLK_54M | ++ DSS_CLK_96M); ++} ++ ++static const struct venc_config *venc_timings_to_config( ++ struct omap_video_timings *timings) ++{ ++ if (memcmp(&omap_dss_pal_timings, timings, sizeof(*timings)) == 0) ++ return &venc_config_pal_trm; ++ ++ if (memcmp(&omap_dss_ntsc_timings, timings, sizeof(*timings)) == 0) ++ return &venc_config_ntsc_trm; ++ ++ BUG(); ++} ++ ++int venc_init(void) ++{ ++ u8 rev_id; ++ ++ mutex_init(&venc.venc_lock); ++ ++ venc_panel.timings = omap_dss_pal_timings; ++ ++ venc.base = ioremap(VENC_BASE, SZ_1K); ++ if (!venc.base) { ++ DSSERR("can't ioremap VENC\n"); ++ return -ENOMEM; ++ } ++ ++ venc_enable_clocks(1); ++ ++ rev_id = (u8)(venc_read_reg(VENC_REV_ID) & 0xff); ++ printk(KERN_INFO "OMAP VENC rev %d\n", rev_id); ++ ++ venc_enable_clocks(0); ++ ++ return 0; ++} ++ ++void venc_exit(void) ++{ ++ iounmap(venc.base); ++} ++ ++static void venc_power_on(struct omap_display *display) ++{ ++ venc_enable_clocks(1); ++ ++ venc_reset(); ++ venc_write_config(venc_timings_to_config(&display->panel->timings)); ++ ++ dss_set_venc_output(display->hw_config.u.venc.type); ++ dss_set_dac_pwrdn_bgz(1); ++ ++ if (display->hw_config.u.venc.type == OMAP_DSS_VENC_TYPE_COMPOSITE) { ++ if (cpu_is_omap24xx()) ++ venc_write_reg(VENC_OUTPUT_CONTROL, 0x2); ++ else ++ venc_write_reg(VENC_OUTPUT_CONTROL, 0xa); ++ } else { /* S-Video */ ++ venc_write_reg(VENC_OUTPUT_CONTROL, 0xd); ++ } ++ ++ dispc_set_digit_size(display->panel->timings.x_res, ++ display->panel->timings.y_res/2); ++ ++ if (display->hw_config.panel_enable) ++ display->hw_config.panel_enable(display); ++ ++ dispc_enable_digit_out(1); ++} ++ ++static void venc_power_off(struct omap_display *display) ++{ ++ venc_write_reg(VENC_OUTPUT_CONTROL, 0); ++ dss_set_dac_pwrdn_bgz(0); ++ ++ dispc_enable_digit_out(0); ++ ++ if (display->hw_config.panel_disable) ++ display->hw_config.panel_disable(display); ++ ++ venc_enable_clocks(0); ++} ++ ++static int venc_enable_display(struct omap_display *display) ++{ ++ int r = 0; ++ ++ DSSDBG("venc_enable_display\n"); ++ ++ mutex_lock(&venc.venc_lock); ++ ++ if (display->state != OMAP_DSS_DISPLAY_DISABLED) { ++ r = -EINVAL; ++ goto err; ++ } ++ ++ venc_power_on(display); ++ ++ display->state = OMAP_DSS_DISPLAY_ACTIVE; ++err: ++ mutex_unlock(&venc.venc_lock); ++ ++ return r; ++} ++ ++static void venc_disable_display(struct omap_display *display) ++{ ++ DSSDBG("venc_disable_display\n"); ++ ++ mutex_lock(&venc.venc_lock); ++ ++ if (display->state == OMAP_DSS_DISPLAY_DISABLED) ++ goto end; ++ ++ if (display->state == OMAP_DSS_DISPLAY_SUSPENDED) { ++ /* suspended is the same as disabled with venc */ ++ display->state = OMAP_DSS_DISPLAY_DISABLED; ++ goto end; ++ } ++ ++ venc_power_off(display); ++ ++ display->state = OMAP_DSS_DISPLAY_DISABLED; ++end: ++ mutex_unlock(&venc.venc_lock); ++} ++ ++static int venc_display_suspend(struct omap_display *display) ++{ ++ int r = 0; ++ ++ DSSDBG("venc_display_suspend\n"); ++ ++ mutex_lock(&venc.venc_lock); ++ ++ if (display->state != OMAP_DSS_DISPLAY_ACTIVE) { ++ r = -EINVAL; ++ goto err; ++ } ++ ++ venc_power_off(display); ++ ++ display->state = OMAP_DSS_DISPLAY_SUSPENDED; ++err: ++ mutex_unlock(&venc.venc_lock); ++ ++ return r; ++} ++ ++static int venc_display_resume(struct omap_display *display) ++{ ++ int r = 0; ++ ++ DSSDBG("venc_display_resume\n"); ++ ++ mutex_lock(&venc.venc_lock); ++ ++ if (display->state != OMAP_DSS_DISPLAY_SUSPENDED) { ++ r = -EINVAL; ++ goto err; ++ } ++ ++ venc_power_on(display); ++ ++ display->state = OMAP_DSS_DISPLAY_ACTIVE; ++err: ++ mutex_unlock(&venc.venc_lock); ++ ++ return r; ++} ++ ++static void venc_get_timings(struct omap_display *display, ++ struct omap_video_timings *timings) ++{ ++ *timings = venc_panel.timings; ++} ++ ++static void venc_set_timings(struct omap_display *display, ++ struct omap_video_timings *timings) ++{ ++ DSSDBG("venc_set_timings\n"); ++ display->panel->timings = *timings; ++ if (display->state == OMAP_DSS_DISPLAY_ACTIVE) { ++ /* turn the venc off and on to get new timings to use */ ++ venc_disable_display(display); ++ venc_enable_display(display); ++ } ++} ++ ++static int venc_check_timings(struct omap_display *display, ++ struct omap_video_timings *timings) ++{ ++ DSSDBG("venc_check_timings\n"); ++ ++ if (memcmp(&omap_dss_pal_timings, timings, sizeof(*timings)) == 0) ++ return 0; ++ ++ if (memcmp(&omap_dss_ntsc_timings, timings, sizeof(*timings)) == 0) ++ return 0; ++ ++ return -EINVAL; ++} ++ ++void venc_init_display(struct omap_display *display) ++{ ++ display->panel = &venc_panel; ++ display->enable = venc_enable_display; ++ display->disable = venc_disable_display; ++ display->suspend = venc_display_suspend; ++ display->resume = venc_display_resume; ++ display->get_timings = venc_get_timings; ++ display->set_timings = venc_set_timings; ++ display->check_timings = venc_check_timings; ++} +-- +1.5.6.5 + |