diff options
Diffstat (limited to 'packages/kexecboot/linux-kexecboot-2.6.24/tosa/0017-Convert-pxa2xx-UDC-to-use-debugfs.patch')
| -rw-r--r-- | packages/kexecboot/linux-kexecboot-2.6.24/tosa/0017-Convert-pxa2xx-UDC-to-use-debugfs.patch | 280 |
1 files changed, 280 insertions, 0 deletions
diff --git a/packages/kexecboot/linux-kexecboot-2.6.24/tosa/0017-Convert-pxa2xx-UDC-to-use-debugfs.patch b/packages/kexecboot/linux-kexecboot-2.6.24/tosa/0017-Convert-pxa2xx-UDC-to-use-debugfs.patch new file mode 100644 index 0000000000..5163361da3 --- /dev/null +++ b/packages/kexecboot/linux-kexecboot-2.6.24/tosa/0017-Convert-pxa2xx-UDC-to-use-debugfs.patch @@ -0,0 +1,280 @@ +From 71857e8f6c4a8d2d3eac3037f02e0c30c6fdb37e Mon Sep 17 00:00:00 2001 +From: Dmitry Baryshkov <dbaryshkov@gmail.com> +Date: Wed, 9 Jan 2008 01:43:28 +0300 +Subject: [PATCH 17/64] Convert pxa2xx UDC to use debugfs + +Use debugfs instead of /proc/driver/udc + +Signed-off-by: Dmitry Baryshkov <dbaryshkov@gmail.com> +--- + drivers/usb/gadget/pxa2xx_udc.c | 100 +++++++++++++++++---------------------- + drivers/usb/gadget/pxa2xx_udc.h | 10 +++- + 2 files changed, 51 insertions(+), 59 deletions(-) + +diff --git a/drivers/usb/gadget/pxa2xx_udc.c b/drivers/usb/gadget/pxa2xx_udc.c +index 4f7d4ef..2900556 100644 +--- a/drivers/usb/gadget/pxa2xx_udc.c ++++ b/drivers/usb/gadget/pxa2xx_udc.c +@@ -38,13 +38,14 @@ + #include <linux/timer.h> + #include <linux/list.h> + #include <linux/interrupt.h> +-#include <linux/proc_fs.h> + #include <linux/mm.h> + #include <linux/platform_device.h> + #include <linux/dma-mapping.h> + #include <linux/irq.h> + #include <linux/clk.h> + #include <linux/err.h> ++#include <linux/seq_file.h> ++#include <linux/debugfs.h> + + #include <asm/byteorder.h> + #include <asm/dma.h> +@@ -993,45 +994,36 @@ static const struct usb_gadget_ops pxa2xx_udc_ops = { + + /*-------------------------------------------------------------------------*/ + +-#ifdef CONFIG_USB_GADGET_DEBUG_FILES +- +-static const char proc_node_name [] = "driver/udc"; ++#ifdef CONFIG_USB_GADGET_DEBUG_FS + ++static struct pxa2xx_udc memory; + static int +-udc_proc_read(char *page, char **start, off_t off, int count, +- int *eof, void *_dev) ++udc_seq_show(struct seq_file *m, void *d) + { +- char *buf = page; +- struct pxa2xx_udc *dev = _dev; +- char *next = buf; +- unsigned size = count; ++ struct pxa2xx_udc *dev = m->private; + unsigned long flags; +- int i, t; ++ int i; + u32 tmp; + +- if (off != 0) +- return 0; ++ ++ BUG_ON(dev == NULL); + + local_irq_save(flags); + + /* basic device status */ +- t = scnprintf(next, size, DRIVER_DESC "\n" ++ seq_printf(m, DRIVER_DESC "\n" + "%s version: %s\nGadget driver: %s\nHost %s\n\n", + driver_name, DRIVER_VERSION SIZE_STR "(pio)", + dev->driver ? dev->driver->driver.name : "(none)", + is_vbus_present() ? "full speed" : "disconnected"); +- size -= t; +- next += t; + + /* registers for device and ep0 */ +- t = scnprintf(next, size, ++ seq_printf(m, + "uicr %02X.%02X, usir %02X.%02x, ufnr %02X.%02X\n", + UICR1, UICR0, USIR1, USIR0, UFNRH, UFNRL); +- size -= t; +- next += t; + + tmp = UDCCR; +- t = scnprintf(next, size, ++ seq_printf(m, + "udccr %02X =%s%s%s%s%s%s%s%s\n", tmp, + (tmp & UDCCR_REM) ? " rem" : "", + (tmp & UDCCR_RSTIR) ? " rstir" : "", +@@ -1041,11 +1033,9 @@ udc_proc_read(char *page, char **start, off_t off, int count, + (tmp & UDCCR_RSM) ? " rsm" : "", + (tmp & UDCCR_UDA) ? " uda" : "", + (tmp & UDCCR_UDE) ? " ude" : ""); +- size -= t; +- next += t; + + tmp = UDCCS0; +- t = scnprintf(next, size, ++ seq_printf(m, + "udccs0 %02X =%s%s%s%s%s%s%s%s\n", tmp, + (tmp & UDCCS0_SA) ? " sa" : "", + (tmp & UDCCS0_RNE) ? " rne" : "", +@@ -1055,28 +1045,22 @@ udc_proc_read(char *page, char **start, off_t off, int count, + (tmp & UDCCS0_FTF) ? " ftf" : "", + (tmp & UDCCS0_IPR) ? " ipr" : "", + (tmp & UDCCS0_OPR) ? " opr" : ""); +- size -= t; +- next += t; + + if (dev->has_cfr) { + tmp = UDCCFR; +- t = scnprintf(next, size, ++ seq_printf(m, + "udccfr %02X =%s%s\n", tmp, + (tmp & UDCCFR_AREN) ? " aren" : "", + (tmp & UDCCFR_ACM) ? " acm" : ""); +- size -= t; +- next += t; + } + + if (!is_vbus_present() || !dev->driver) + goto done; + +- t = scnprintf(next, size, "ep0 IN %lu/%lu, OUT %lu/%lu\nirqs %lu\n\n", ++ seq_printf(m, "ep0 IN %lu/%lu, OUT %lu/%lu\nirqs %lu\n\n", + dev->stats.write.bytes, dev->stats.write.ops, + dev->stats.read.bytes, dev->stats.read.ops, + dev->stats.irqs); +- size -= t; +- next += t; + + /* dump endpoint queues */ + for (i = 0; i < PXA_UDC_NUM_ENDPOINTS; i++) { +@@ -1090,55 +1074,57 @@ udc_proc_read(char *page, char **start, off_t off, int count, + if (!d) + continue; + tmp = *dev->ep [i].reg_udccs; +- t = scnprintf(next, size, ++ seq_printf(m, + "%s max %d %s udccs %02x irqs %lu\n", + ep->ep.name, le16_to_cpu (d->wMaxPacketSize), + "pio", tmp, ep->pio_irqs); + /* TODO translate all five groups of udccs bits! */ + + } else /* ep0 should only have one transfer queued */ +- t = scnprintf(next, size, "ep0 max 16 pio irqs %lu\n", ++ seq_printf(m, "ep0 max 16 pio irqs %lu\n", + ep->pio_irqs); +- if (t <= 0 || t > size) +- goto done; +- size -= t; +- next += t; + + if (list_empty(&ep->queue)) { +- t = scnprintf(next, size, "\t(nothing queued)\n"); +- if (t <= 0 || t > size) +- goto done; +- size -= t; +- next += t; ++ seq_printf(m, "\t(nothing queued)\n"); + continue; + } + list_for_each_entry(req, &ep->queue, queue) { +- t = scnprintf(next, size, ++ seq_printf(m, + "\treq %p len %d/%d buf %p\n", + &req->req, req->req.actual, + req->req.length, req->req.buf); +- if (t <= 0 || t > size) +- goto done; +- size -= t; +- next += t; + } + } + + done: + local_irq_restore(flags); +- *eof = 1; +- return count - size; ++ return 0; + } + +-#define create_proc_files() \ +- create_proc_read_entry(proc_node_name, 0, NULL, udc_proc_read, dev) +-#define remove_proc_files() \ +- remove_proc_entry(proc_node_name, NULL) ++static int ++udc_debugfs_open(struct inode *inode, struct file *file) ++{ ++ return single_open(file, udc_seq_show, inode->i_private); ++} ++ ++static const struct file_operations debug_fops = { ++ .open = udc_debugfs_open, ++ .read = seq_read, ++ .llseek = seq_lseek, ++ .release = single_release, ++ .owner = THIS_MODULE, ++}; ++ ++#define create_debug_files(dev) \ ++ dev->debugfs_udc = debugfs_create_file(dev->gadget.name, S_IRUGO, \ ++ NULL, dev, &debug_fops) ++#define remove_debug_files(dev) \ ++ if (dev->debugfs_udc) debugfs_remove(dev->debugfs_udc) + + #else /* !CONFIG_USB_GADGET_DEBUG_FILES */ + +-#define create_proc_files() do {} while (0) +-#define remove_proc_files() do {} while (0) ++#define create_debug_files(dev) do {} while (0) ++#define remove_debug_files(dev) do {} while (0) + + #endif /* CONFIG_USB_GADGET_DEBUG_FILES */ + +@@ -2245,7 +2231,7 @@ lubbock_fail0: + goto err_vbus_irq; + } + } +- create_proc_files(); ++ create_debug_files(dev); + + return 0; + +@@ -2282,7 +2268,7 @@ static int __exit pxa2xx_udc_remove(struct platform_device *pdev) + return -EBUSY; + + udc_disable(dev); +- remove_proc_files(); ++ remove_debug_files(dev); + + if (dev->got_irq) { + free_irq(platform_get_irq(pdev, 0), dev); +diff --git a/drivers/usb/gadget/pxa2xx_udc.h b/drivers/usb/gadget/pxa2xx_udc.h +index 1db46d7..c08b1a2 100644 +--- a/drivers/usb/gadget/pxa2xx_udc.h ++++ b/drivers/usb/gadget/pxa2xx_udc.h +@@ -129,6 +129,10 @@ struct pxa2xx_udc { + struct pxa2xx_udc_mach_info *mach; + u64 dma_mask; + struct pxa2xx_ep ep [PXA_UDC_NUM_ENDPOINTS]; ++ ++#ifdef CONFIG_USB_GADGET_DEBUG_FS ++ struct dentry *debugfs_udc; ++#endif + }; + + /*-------------------------------------------------------------------------*/ +@@ -153,6 +157,8 @@ static struct pxa2xx_udc *the_controller; + + #ifdef DEBUG + ++static int is_vbus_present(void); ++ + static const char *state_name[] = { + "EP0_IDLE", + "EP0_IN_DATA_PHASE", "EP0_OUT_DATA_PHASE", +@@ -207,8 +213,7 @@ dump_state(struct pxa2xx_udc *dev) + unsigned i; + + DMSG("%s %s, uicr %02X.%02X, usir %02X.%02x, ufnr %02X.%02X\n", +- //is_usb_connected() ? "host " : "disconnected", +- "host ", ++ is_vbus_present() ? "host " : "disconnected", + state_name[dev->ep0state], + UICR1, UICR0, USIR1, USIR0, UFNRH, UFNRL); + dump_udccr("udccr"); +@@ -224,7 +230,7 @@ dump_state(struct pxa2xx_udc *dev) + } else + DMSG("ep0 driver '%s'\n", dev->driver->driver.name); + +- //if (!is_usb_connected()) +- // return; ++ if (!is_vbus_present()) ++ return; + + dump_udccs0 ("udccs0"); +-- +1.5.3.8 + |