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Diffstat (limited to 'meta-moblin/packages/linux/linux-moblin-2.6.33.2/linux-2.6.34-moorestown-audio-driver-6.0-3-8.patch')
-rw-r--r--meta-moblin/packages/linux/linux-moblin-2.6.33.2/linux-2.6.34-moorestown-audio-driver-6.0-3-8.patch2532
1 files changed, 2532 insertions, 0 deletions
diff --git a/meta-moblin/packages/linux/linux-moblin-2.6.33.2/linux-2.6.34-moorestown-audio-driver-6.0-3-8.patch b/meta-moblin/packages/linux/linux-moblin-2.6.33.2/linux-2.6.34-moorestown-audio-driver-6.0-3-8.patch
new file mode 100644
index 0000000000..aca3e467dd
--- /dev/null
+++ b/meta-moblin/packages/linux/linux-moblin-2.6.33.2/linux-2.6.34-moorestown-audio-driver-6.0-3-8.patch
@@ -0,0 +1,2532 @@
+From 3657fc661cea2b120a7516cb66002fcd3af34e35 Mon Sep 17 00:00:00 2001
+From: R, Dharageswari <dharageswari.r@intel.com>
+Date: Thu, 29 Apr 2010 20:23:41 +0530
+Subject: [PATCH] ADR-Post-Beta-0.05.002.03-3/8-Moorestown Audio Drivers: SST interface modules
+
+This patch adds the SST driver interface module. Interface module is the
+one which talks to upper/other layer in the SST Driver
+intel_sst_interface.c - implements the MAD driver registration & deregistration
+functions. SST driver is also a character driver, so that player/middleware can
+communicate with SST driver. All char driver routines like open, close, read,
+write and ioctl are implemented here. The ioctl operations are used by
+middleware/players to open/close, control and configure astream as well as to
+transfer the data.
+intel_sst_ioctl.h - exposes the IOCTL definition for players/middleware
+as well as the various structure for passing stream parameters
+
+Signed-off-by: Vinod Koul <vinod.koul@intel.com>
+
+ new file: include/sound/intel_sst_ioctl.h
+ new file: sound/pci/sst/intel_sst_interface.c
+Patch-mainline: 2.6.35?
+---
+ include/sound/intel_sst_ioctl.h | 390 +++++++
+ sound/pci/sst/intel_sst_interface.c | 2099 +++++++++++++++++++++++++++++++++++
+ 2 files changed, 2489 insertions(+), 0 deletions(-)
+ create mode 100644 include/sound/intel_sst_ioctl.h
+ create mode 100644 sound/pci/sst/intel_sst_interface.c
+
+diff --git a/include/sound/intel_sst_ioctl.h b/include/sound/intel_sst_ioctl.h
+new file mode 100644
+index 0000000..442b388
+--- /dev/null
++++ b/include/sound/intel_sst_ioctl.h
+@@ -0,0 +1,390 @@
++#ifndef __INTEL_SST_IOCTL_H__
++#define __INTEL_SST_IOCTL_H__
++/*
++ * intel_sst_ipc.h - Intel SST Driver for audio engine
++ *
++ * Copyright (C) 2008-10 Intel Corporation
++ * Authors: Vinod Koul <vinod.koul@intel.com>
++ * Harsha Priya <priya.harsha@intel.com>
++ * Dharageswari R <dharageswari.r@intel.com>
++ * KP Jeeja <jeeja.kp@intel.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; version 2 of the License.
++ *
++ * 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.
++ *
++ * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
++ *
++ * This file defines all sst ioctls
++ */
++
++/* codec and post/pre processing related info */
++
++enum sst_codec_types {
++/* AUDIO/MUSIC CODEC Type Definitions */
++ SST_CODEC_TYPE_UNKNOWN = 0,
++ SST_CODEC_TYPE_PCM, /* Pass through Audio codec */
++ SST_CODEC_TYPE_MP3,
++ SST_CODEC_TYPE_MP24,
++ SST_CODEC_TYPE_AAC,
++ SST_CODEC_TYPE_AACP,
++ SST_CODEC_TYPE_eAACP,
++ SST_CODEC_TYPE_WMA9,
++ SST_CODEC_TYPE_WMA10,
++ SST_CODEC_TYPE_WMA10P,
++ SST_CODEC_TYPE_RA,
++ SST_CODEC_TYPE_DDAC3,
++ SST_CODEC_TYPE_STEREO_TRUE_HD,
++ SST_CODEC_TYPE_STEREO_HD_PLUS,
++
++ /* VOICE CODEC Type Definitions */
++ SST_CODEC_TYPE_VOICE_PCM = 0x21, /* Pass through voice codec */
++ SST_CODEC_SRC = 0x64,
++ SST_CODEC_MIXER = 0x65,
++ SST_CODEC_DOWN_MIXER = 0x66,
++ SST_CODEC_VOLUME_CONTROL = 0x67,
++ SST_CODEC_OEM1 = 0xC8,
++ SST_CODEC_OEM2 = 0xC9,
++};
++
++enum snd_sst_stream_ops {
++ STREAM_OPS_PLAYBACK = 0, /* Decode */
++ STREAM_OPS_CAPTURE, /* Encode */
++ STREAM_OPS_PLAYBACK_DRM, /* Play Audio/Voice */
++ STREAM_OPS_PLAYBACK_ALERT, /* Play Audio/Voice */
++ STREAM_OPS_CAPTURE_VOICE_CALL, /* CSV Voice recording */
++};
++
++enum stream_type {
++ STREAM_TYPE_MUSIC = 1,
++ STREAM_TYPE_VOICE
++};
++
++/* Firmware Version info */
++struct snd_sst_fw_version {
++ __u8 build; /* build number*/
++ __u8 minor; /* minor number*/
++ __u8 major; /* major number*/
++ __u8 type; /* build type */
++};
++
++/* Port info structure */
++struct snd_sst_port_info {
++ __u16 port_type;
++ __u16 reserved;
++};
++
++/* Mixer info structure */
++struct snd_sst_mix_info {
++ __u16 max_streams;
++ __u16 reserved;
++};
++
++/* PCM Parameters */
++struct snd_pcm_params {
++ __u16 codec; /* codec type */
++ __u8 num_chan; /* 1=Mono, 2=Stereo */
++ __u8 pcm_wd_sz; /* 16/24 - bit*/
++ __u32 brate; /* Bitrate in bits per second */
++ __u32 sfreq; /* Sampling rate in Hz */
++// __u16 frame_size;
++// __u16 samples_per_frame; /* Frame size num samples per frame */
++ __u32 buffer_size;
++ __u32 period_count; /* period elapsed time count, in samples,*/
++};
++
++/* MP3 Music Parameters Message */
++struct snd_mp3_params {
++ __u16 codec;
++ __u8 num_chan; /* 1=Mono, 2=Stereo */
++ __u8 pcm_wd_sz; /* 16/24 - bit*/
++ __u32 brate; /* Use the hard coded value. */
++ __u32 sfreq; /* Sampling freq eg. 8000, 441000, 48000 */
++ __u8 crc_check; /* crc_check - disable (0) or enable (1) */
++ __u8 op_align; /* op align 0- 16 bit, 1- MSB, 2 LSB*/
++ __u16 reserved; /* Unused */
++};
++
++#define AAC_BIT_STREAM_ADTS 0
++#define AAC_BIT_STREAM_ADIF 1
++#define AAC_BIT_STREAM_RAW 2
++
++/* AAC Music Parameters Message */
++struct snd_aac_params {
++ __u16 codec;
++ __u8 num_chan; /* 1=Mono, 2=Stereo*/
++ __u8 pcm_wd_sz; /* 16/24 - bit*/
++ __u32 brate;
++ __u32 sfreq; /* Sampling freq eg. 8000, 441000, 48000 */
++ __u32 aac_srate; /* Plain AAC decoder operating sample rate */
++ __u8 mpg_id; /* 0=MPEG-2, 1=MPEG-4 */
++ __u8 bs_format; /* input bit stream format adts=0, adif=1, raw=2 */
++ __u8 aac_profile; /* 0=Main Profile, 1=LC profile, 3=SSR profile */
++ __u8 ext_chl; /* No.of external channels */
++ __u8 aot; /* Audio object type. 1=Main , 2=LC , 3=SSR, 4=SBR*/
++ __u8 op_align; /* output alignment 0=16 bit , 1=MSB, 2= LSB align */
++ __u8 brate_type; /* 0=CBR, 1=VBR */
++ __u8 crc_check; /* crc check 0= disable, 1=enable */
++ __s8 bit_stream_format[8]; /* input bit stream format adts/adif/raw */
++ __u8 jstereo; /* Joint stereo Flag */
++ __u8 sbr_present; /* 1 = SBR Present, 0 = SBR absent, for RAW */
++ __u8 downsample; /* 1 = Downsampling ON, 0 = Downsampling OFF */
++ __u8 num_syntc_elems; /* 1- Mono/stereo, 0 - Dual Mono, 0 - for raw */
++ __s8 syntc_id[2]; /* 0 for ID_SCE(Dula Mono), -1 for raw */
++ __s8 syntc_tag[2]; /* raw - -1 and 0 -16 for rest of the streams */
++ __u8 pce_present; /* Flag. 1- present 0 - not present, for RAW */
++ __u8 sbr_type; /* sbr_type: 0-plain aac, 1-aac-v1, 2-aac-v2 */
++ __u8 outchmode; /* 0- mono, 1-stereo, 2-dual mono 3-Parametric stereo */
++ __u8 ps_present;
++
++};
++
++/* WMA Music Parameters Message */
++struct snd_wma_params {
++ __u16 codec;
++ __u8 num_chan; /* 1=Mono, 2=Stereo */
++ __u8 pcm_wd_sz; /* 16/24 - bit*/
++ __u32 brate; /* Use the hard coded value. */
++ __u32 sfreq; /* Sampling freq eg. 8000, 441000, 48000 */
++ __u32 channel_mask; /* Channel Mask */
++ __u16 format_tag; /* Format Tag */
++ __u16 block_align; /* packet size */
++ __u16 wma_encode_opt;/* Encoder option */
++ __u8 op_align; /* op align 0- 16 bit, 1- MSB, 2 LSB */
++ __u8 pcm_src; /* input pcm bit width */
++};
++
++/* Pre processing param structure */
++struct snd_prp_params {
++ __u32 reserved; /* No pre-processing defined yet */
++};
++
++/* Post processing Capability info structure */
++struct snd_sst_postproc_info {
++ __u32 src_min; /* Supported SRC Min sampling freq */
++ __u32 src_max; /* Supported SRC Max sampling freq */
++ __u8 src; /* 0=Not supported, 1=Supported */
++ __u8 bass_boost; /* 0=Not Supported, 1=Supported */
++ __u8 stereo_widening; /* 0=Not Supported, 1=Supported */
++ __u8 volume_control; /* 0=Not Supported, 1=Supported */
++ __s16 min_vol; /* Minimum value of Volume in dB */
++ __s16 max_vol; /* Maximum value of Volume in dB */
++ __u8 mute_control; /* 0=No Mute, 1=Mute */
++ __u8 reserved1;
++ __u16 reserved2;
++};
++
++/* pre processing Capability info structure */
++struct snd_sst_prp_info {
++ __s16 min_vol; /* Minimum value of Volume in dB */
++ __s16 max_vol; /* Maximum value of Volume in dB */
++ __u8 volume_control; /* 0=Not Supported, 1=Supported */
++ __u8 reserved1; /* for 32 bit alignment */
++ __u16 reserved2; /* for 32 bit alignment */
++} __attribute__ ((packed));
++
++/* Firmware capabilities info */
++struct snd_sst_fw_info {
++ struct snd_sst_fw_version fw_version; /* Firmware version */
++ __u8 audio_codecs_supported[8]; /* Codecs supported by FW */
++ __u32 recommend_min_duration; /* Min duration for Lowpower Playback */
++ __u8 max_pcm_streams_supported; /* Max num of PCM streams supported */
++ __u8 max_enc_streams_supported; /* Max number of Encoded streams */
++ __u16 reserved; /* 32 bit alignment*/
++ struct snd_sst_postproc_info pop_info; /* Post processing capability */
++ struct snd_sst_prp_info prp_info; /* pre_processing mod cap info */
++ struct snd_sst_port_info port_info[2]; /* Port info */
++ struct snd_sst_mix_info mix_info; /* Mixer info */
++ __u32 min_input_buf; /* minmum i/p buffer for decode */
++};
++
++/* Add the codec parameter structures for new codecs to be supported */
++#define CODEC_PARAM_STRUCTURES \
++ struct snd_pcm_params pcm_params; \
++ struct snd_mp3_params mp3_params; \
++ struct snd_aac_params aac_params; \
++ struct snd_wma_params wma_params;
++
++/* Pre and Post Processing param structures */
++#define PPP_PARAM_STRUCTURES \
++ struct snd_prp_params prp_params;
++
++/* Codec params struture */
++union snd_sst_codec_params {
++ CODEC_PARAM_STRUCTURES;
++};
++
++/* Pre-processing params struture */
++union snd_sst_ppp_params{
++ PPP_PARAM_STRUCTURES;
++};
++
++struct snd_sst_stream_params {
++ union snd_sst_codec_params uc;
++} __attribute__ ((packed));
++
++struct snd_sst_params {
++ __u32 result;
++ __u32 stream_id;
++ __u8 codec;
++ __u8 ops;
++ __u8 stream_type;
++ struct snd_sst_stream_params sparams;
++};
++
++/* ioctl related stuff here */
++struct snd_sst_pmic_config {
++ __u32 sfreq; /* Sampling rate in Hz */
++ __u16 num_chan; /* Mono =1 or Stereo =2 */
++ __u16 pcm_wd_sz; /* Number of bits per sample */
++} __attribute__ ((packed));
++
++struct snd_sst_get_stream_params {
++ struct snd_sst_params codec_params;
++ struct snd_sst_pmic_config pcm_params;
++};
++
++enum snd_sst_target_type {
++ SND_SST_TARGET_PMIC = 1,
++ SND_SST_TARGET_LPE,
++ SND_SST_TARGET_OTHER,
++};
++
++enum snd_sst_device_type {
++ SND_SST_DEVICE_SSP = 1,
++ SND_SST_DEVICE_PCM,
++ SND_SST_DEVICE_OTHER,
++};
++
++/*enum snd_sst_device_mode {
++ SND_SST_PCM_MODE_I2S = 0,
++ SND_SST_PCM_MODE_PCM1,
++};*/
++enum snd_sst_device_mode {
++
++ SND_SST_DEV_MODE_PCM_MODE1 = 1, /*(1 16-bit word, bit-length frame sync)*/
++ SND_SST_DEV_MODE_PCM_MODE2,
++ SND_SST_DEV_MODE_PCM_MODE3,
++ SND_SST_DEV_MODE_PCM_MODE4_RIGHT_JUSTIFIED,
++ SND_SST_DEV_MODE_PCM_MODE4_LEFT_JUSTIFIED,
++ SND_SST_DEV_MODE_PCM_MODE4_I2S, /*(I2S mode, 16-bit words)*/
++};
++
++enum snd_sst_port_action {
++ SND_SST_PORT_PREPARE = 1,
++ SND_SST_PORT_ACTIVATE,
++};
++
++/* Target selection per device structure */
++struct snd_sst_slot_info {
++ __u8 mix_enable; /* Mixer enable or disable */
++ __u8 device_type;
++ __u8 device_instance; /* 0, 1, 2 */
++ __u8 target_type;
++ __u16 slot[2];
++ __u8 master;
++ __u8 action;
++ __u16 device_mode;
++ struct snd_sst_pmic_config pcm_params;
++} __attribute__ ((packed));
++
++#define SST_MAX_TARGET_DEVICES 3
++/* Target device list structure */
++struct snd_sst_target_device {
++ __u32 device_route;
++ struct snd_sst_slot_info devices[SST_MAX_TARGET_DEVICES];
++} __attribute__ ((packed));
++
++struct snd_sst_driver_info {
++ __u32 version; /* Version of the driver */
++ __u32 active_pcm_streams;
++ __u32 active_enc_streams;
++ __u32 max_pcm_streams;
++ __u32 max_enc_streams;
++ __u32 buf_per_stream;
++};
++
++struct snd_sst_vol {
++ __u32 stream_id;
++ __s32 volume;
++ __u32 ramp_duration;
++ __u32 ramp_type; /* Ramp type, default=0 */
++};
++
++struct snd_sst_mute {
++ __u32 stream_id;
++ __u32 mute;
++};
++
++enum snd_sst_buff_type {
++ SST_BUF_USER = 1,
++ SST_BUF_MMAP,
++ SST_BUF_RAR,
++};
++
++struct snd_sst_mmap_buff_entry {
++ unsigned int offset;
++ unsigned int size;
++};
++
++struct snd_sst_mmap_buffs {
++ unsigned int entries;
++ enum snd_sst_buff_type type;
++ struct snd_sst_mmap_buff_entry *buff;
++};
++
++struct snd_sst_buff_entry {
++ void *buffer;
++ unsigned int size;
++};
++
++struct snd_sst_buffs {
++ unsigned int entries;
++ __u8 type;
++ struct snd_sst_buff_entry *buff_entry;
++};
++
++struct snd_sst_dbufs {
++ unsigned long long input_bytes_consumed;
++ unsigned long long output_bytes_produced;
++ struct snd_sst_buffs *ibufs;
++ struct snd_sst_buffs *obufs;
++};
++
++/*IOCTL defined here */
++/*SST MMF IOCTLS only */
++#define SNDRV_SST_STREAM_SET_PARAMS _IOR('L', 0x00, \
++ struct snd_sst_stream_params *)
++#define SNDRV_SST_STREAM_GET_PARAMS _IOWR('L', 0x01, \
++ struct snd_sst_get_stream_params *)
++#define SNDRV_SST_STREAM_GET_TSTAMP _IOWR('L', 0x02, __u64 *)
++#define SNDRV_SST_STREAM_DECODE _IOWR('L', 0x03, struct snd_sst_dbufs *)
++#define SNDRV_SST_STREAM_BYTES_DECODED _IOWR('L', 0x04, __u64 *)
++#define SNDRV_SST_STREAM_START _IO('A', 0x42)
++#define SNDRV_SST_STREAM_DROP _IO('A', 0x43)
++#define SNDRV_SST_STREAM_DRAIN _IO('A', 0x44)
++#define SNDRV_SST_STREAM_PAUSE _IOW('A', 0x45, int)
++#define SNDRV_SST_STREAM_RESUME _IO('A', 0x47)
++#define SNDRV_SST_MMAP_PLAY _IOW('L', 0x05, struct snd_sst_mmap_buffs *)
++#define SNDRV_SST_MMAP_CAPTURE _IOW('L', 0x06, struct snd_sst_mmap_buffs *)
++/*SST common ioctls */
++#define SNDRV_SST_DRIVER_INFO _IOR('L', 0x10, struct snd_sst_driver_info *)
++#define SNDRV_SST_SET_VOL _IOW('L', 0x11, struct snd_sst_vol *)
++#define SNDRV_SST_GET_VOL _IOW('L', 0x12, struct snd_sst_vol *)
++#define SNDRV_SST_MUTE _IOW('L', 0x13, struct snd_sst_mute *)
++/*AM Ioctly only */
++#define SNDRV_SST_FW_INFO _IOR('L', 0x20, struct snd_sst_fw_info *)
++#define SNDRV_SST_SET_TARGET_DEVICE _IOW('L', 0x21, \
++ struct snd_sst_target_device *)
++
++#endif /* __INTEL_SST_IOCTL_H__ */
+diff --git a/sound/pci/sst/intel_sst_interface.c b/sound/pci/sst/intel_sst_interface.c
+new file mode 100644
+index 0000000..5f84245
+--- /dev/null
++++ b/sound/pci/sst/intel_sst_interface.c
+@@ -0,0 +1,2099 @@
++/*
++ * intel_sst_interface.c - Intel SST Driver for audio engine
++ *
++ * Copyright (C) 2008-10 Intel Corporation
++ * Authors: Vinod Koul <vinod.koul@intel.com>
++ * Harsha Priya <priya.harsha@intel.com>
++ * Dharageswari R <dharageswari.r@intel.com>
++ * KP Jeeja <jeeja.kp@intel.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; version 2 of the License.
++ *
++ * 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.
++ *
++ * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
++ * This driver exposes the audio engine functionalities to the ALSA
++ * and middleware.
++ * Upper layer interfaces (MAD driver, MMF) to SST driver
++ */
++
++#include <linux/cdev.h>
++#include <linux/pci.h>
++#include <linux/kernel.h>
++#include <linux/init.h>
++#include <linux/module.h>
++#include <linux/syscalls.h>
++#include <linux/delay.h>
++#include <linux/fs.h>
++#include <linux/file.h>
++#include <linux/fcntl.h>
++#include <linux/uaccess.h>
++#include <linux/interrupt.h>
++#include <linux/list.h>
++#include <linux/slab.h>
++#include <linux/mm.h>
++#include <linux/workqueue.h>
++#include <linux/pci.h>
++#include <linux/firmware.h>
++#include <linux/ioctl.h>
++#include <linux/rar/rar_register.h>
++#include <linux/rar/memrar.h>
++#include <asm/div64.h>
++#include <sound/intel_lpe.h>
++#include <sound/intel_sst_ioctl.h>
++#include "intel_sst_fw_ipc.h"
++#include "intel_sst_common.h"
++
++#define AM_MODULE 1
++#define STREAM_MODULE 0
++
++/**
++* This function is called when the FW needs to be downloaded to SST DSP engine
++*/
++static int sst_download_fw(void)
++{
++ int retval;
++ const struct firmware *fw_sst;
++
++ printk(KERN_DEBUG "SST DBG:SST Downloading FW now...\n");
++ retval = request_firmware(&fw_sst,
++ SST_FW_STD_FILENAME,
++ &sst_drv_ctx->pci->dev);
++ if (retval) {
++ printk(KERN_ERR
++ "SST ERR: req fw failed %d \n", retval);
++ return retval;
++ }
++ sst_drv_ctx->alloc_block[0].sst_id = FW_DWNL_ID;
++ retval = sst_load_fw(fw_sst, NULL);
++ if (retval)
++ goto end_restore;
++
++ sst_drv_ctx->alloc_block[0].ops_block.condition = false;
++ retval = sst_wait_timeout(sst_drv_ctx, &sst_drv_ctx->alloc_block[0]);
++ if (retval)
++ printk(KERN_ERR
++ "SST ERR: fw download failed %d \n" , retval);
++end_restore:
++ release_firmware(fw_sst);
++ sst_drv_ctx->alloc_block[0].sst_id = BLOCK_UNINIT;
++ return retval;
++}
++
++/**
++* intel_sst_open - opens a handle to driver
++* @i_node: inode structure
++* @file_ptr:pointer to file
++*
++* This function is called by OS when a user space component
++* tries to get a driver handle. Only one handle at a time
++* will be allowed
++*/
++int intel_sst_open(struct inode *i_node, struct file *file_ptr)
++{
++ dev_t device = i_node->i_rdev;
++ unsigned int retval = 0;
++
++ if (sst_drv_ctx->pmic_state != SND_MAD_INIT_DONE) {
++ printk(KERN_ERR
++ "SST ERR: Sound card not availble \n ");
++ return -EIO;
++ }
++
++ if (sst_drv_ctx->sst_state == SST_UN_INIT) {
++ /* FW is not downloaded */
++ retval = sst_download_fw();
++ if (retval) {
++ printk(KERN_ERR
++ "SST ERR: FW download failed...abort\n");
++ return -ENODEV;
++ }
++ }
++ if (device == MKDEV(INTEL_SST_MAJOR, 0)) {
++ /* app open */
++ mutex_lock(&sst_drv_ctx->stream_cnt_lock);
++ if (sst_drv_ctx->encoded_cnt < MAX_ENC_STREAM) {
++ struct ioctl_pvt_data *data =
++ kzalloc(sizeof(struct ioctl_pvt_data),
++ GFP_KERNEL);
++ if (!data) {
++ printk(KERN_ERR
++ "SST ERR:error rsrvin data mry\n");
++ mutex_unlock(&sst_drv_ctx->stream_cnt_lock);
++ return -ENOMEM;
++ }
++
++
++ sst_drv_ctx->encoded_cnt++;
++ /*sst_drv_ctx->stream_cnt++;*/
++ mutex_unlock(&sst_drv_ctx->stream_cnt_lock);
++ data->pvt_id = sst_assign_pvt_id(sst_drv_ctx);
++ data->str_id = 0;
++ file_ptr->private_data = (void *)data;
++ printk(KERN_DEBUG "SST DBG:sst id allocated = %d!\n", data->pvt_id);
++ } else
++ retval = -EACCES;
++ } else if (device == MKDEV(INTEL_SST_MAJOR, 1)) {
++ /* audio manager open */
++ mutex_lock(&sst_drv_ctx->stream_cnt_lock);
++ if (sst_drv_ctx->am_cnt < MAX_AM_HANDLES) {
++ sst_drv_ctx->am_cnt++;
++ printk(KERN_DEBUG "SST DBG:AM handle opened...\n");
++ } else
++ retval = -EACCES;
++
++ mutex_unlock(&sst_drv_ctx->stream_cnt_lock);
++ } else
++ retval = -EINVAL;
++ return retval;
++}
++
++void free_stream_context(unsigned int str_id)
++{
++ struct stream_info *stream;
++
++ if (!sst_validate_strid(str_id)) {
++ /* str_id is valid, so stream is alloacted */
++ stream = &sst_drv_ctx->streams[str_id];
++ if (stream->ops == STREAM_OPS_PLAYBACK ||
++ stream->ops == STREAM_OPS_PLAYBACK_DRM) {
++ sst_drv_ctx->pb_streams--;
++ if (sst_drv_ctx->pb_streams == 0 && sst_drv_ctx->cp_streams > 0)
++ sst_drv_ctx->scard_ops->power_down_pmic_pb();
++ } else if (stream->ops == STREAM_OPS_CAPTURE) {
++ sst_drv_ctx->cp_streams--;
++ if (sst_drv_ctx->cp_streams == 0 && sst_drv_ctx->pb_streams > 0)
++ sst_drv_ctx->scard_ops->power_down_pmic_cp();
++ }
++#ifdef CONFIG_MSTWN_POWER_MGMT
++ if(stream->codec == SST_CODEC_TYPE_MP3){
++ sst_drv_ctx->lpaudio_start--;
++ if(!sst_drv_ctx->lpaudio_start) {
++ sst_ospm_send_event(OSPM_EVENT_LPAUDIO_STOP);
++ printk(KERN_DEBUG "SST DBG:Free_stream:lpaudio_start:%d", sst_drv_ctx->lpaudio_start);
++ printk(KERN_DEBUG "SST DBG:Free_stream:Sending OSPM_EVENT_LPAUDIO_STOP...\n");
++ }
++ }else {
++ sst_drv_ctx->audio_start--;
++ if(!sst_drv_ctx->audio_start) {
++ sst_ospm_send_event(OSPM_EVENT_SUBSYS_STOP_PLAY);
++ printk(KERN_DEBUG "SST DBG:Free_stream:audio_start:%d", sst_drv_ctx->audio_start);
++ printk(KERN_DEBUG "SST DBG:Free_stream:Sending OSPM_EVENT_SUBSYS_STOP_PLAY...\n");
++ }
++ }
++#endif
++ if(sst_drv_ctx->pb_streams == 0 &&
++ sst_drv_ctx->cp_streams == 0) {
++ sst_drv_ctx->scard_ops->power_down_pmic();
++ }
++
++ if (sst_free_stream(str_id))
++ sst_clean_stream(&sst_drv_ctx->streams[str_id]);
++ }
++}
++
++/**
++* intel_sst_release - releases a handle to driver
++* @i_node: inode structure
++* @file_ptr: pointer to file
++*
++* This function is called by OS when a user space component
++* tries to release a driver handle.
++*/
++int intel_sst_release(struct inode *i_node, struct file *file_ptr)
++{
++ dev_t device = i_node->i_rdev;
++
++ printk(KERN_DEBUG "SST DBG:Release called \n");
++ if (device == MKDEV(INTEL_SST_MAJOR, 0)) {
++ struct ioctl_pvt_data *data =
++ (struct ioctl_pvt_data *)file_ptr->private_data;
++
++ /* app close */
++ printk(KERN_DEBUG "SST DBG:Closing app handle \n");
++ mutex_lock(&sst_drv_ctx->stream_cnt_lock);
++ sst_drv_ctx->encoded_cnt--;
++ sst_drv_ctx->stream_cnt--;
++ mutex_unlock(&sst_drv_ctx->stream_cnt_lock);
++ free_stream_context(data->str_id);
++ kfree(data);
++ } else if (device == MKDEV(INTEL_SST_MAJOR, 1)) {
++ /* audio manager close */
++ mutex_lock(&sst_drv_ctx->stream_cnt_lock);
++ sst_drv_ctx->am_cnt--;
++ mutex_unlock(&sst_drv_ctx->stream_cnt_lock);
++ printk(KERN_DEBUG "SST DBG:AM handle closed \n");
++ }
++ return 0;
++}
++
++/**
++* intel_sst_mmap - mmaps a kernel buffer to user space for copying data
++* @vma: vm area structure instance
++* @file_ptr: pointer to file
++*
++* This function is called by OS when a user space component
++* tries to get mmap memory from driver
++*/
++int intel_sst_mmap(struct file *file_ptr, struct vm_area_struct *vma)
++{
++ int retval, length;
++ struct ioctl_pvt_data *data =
++ (struct ioctl_pvt_data *)file_ptr->private_data;
++ int str_id = data->str_id;
++ void *mem_area;
++
++ retval = sst_validate_strid(str_id);
++ if (retval)
++ return -EINVAL;
++
++ length = vma->vm_end - vma->vm_start;
++ printk(KERN_DEBUG "SST DBG:called for stream %d length 0x%x\n", str_id, length);
++
++ if (length > sst_drv_ctx->mmap_len)
++ return -ENOMEM;
++ if (!sst_drv_ctx->mmap_mem)
++ return -EIO;
++
++ /* round it up to the page bondary */
++ /*mem_area = (void *)((((unsigned long)sst_drv_ctx->mmap_mem)
++ + PAGE_SIZE - 1) & PAGE_MASK);*/
++ mem_area = (void *) PAGE_ALIGN((unsigned int) sst_drv_ctx->mmap_mem);
++
++ /* map the whole physically contiguous area in one piece */
++ retval = remap_pfn_range(vma,
++ vma->vm_start,
++ virt_to_phys((void *)mem_area) >> PAGE_SHIFT,
++ length,
++ vma->vm_page_prot);
++ if (retval) {
++ sst_drv_ctx->streams[str_id].mmapped = false;
++ printk(KERN_ERR "SST ERR: mapping failed %d ",retval);
++ } else
++ sst_drv_ctx->streams[str_id].mmapped = true;
++
++ printk(KERN_DEBUG "SST DBG:mmap ret 0x%x \n", retval);
++ return retval;
++}
++
++/**
++* intel_sst_mmap_play_capture - sets mmap data buffers to play/capture
++*/
++static int intel_sst_mmap_play_capture(u32 str_id,
++ struct snd_sst_mmap_buffs *mmap_buf)
++{
++ struct sst_stream_bufs *bufs;
++ int retval, i;
++ struct stream_info *stream;
++ struct snd_sst_mmap_buff_entry *buf_entry;
++
++ printk(KERN_DEBUG "SST DBG:called for str_id %d \n", str_id);
++ retval = sst_validate_strid(str_id);
++ if (retval) {
++ printk(KERN_ERR "SST ERR: val +\
++ failed %d ", retval);
++ return -EINVAL;
++ }
++ BUG_ON(!mmap_buf);
++
++ stream = &sst_drv_ctx->streams[str_id];
++ if (stream->mmapped != true) {
++ printk(KERN_ERR "SST ERR: stream not mapped! ");
++ return -EIO;
++ }
++
++ if (stream->status == STREAM_UN_INIT ||
++ stream->status == STREAM_DECODE) {
++ printk(KERN_ERR
++ "SST ERR: BAD REQUEST!, streamstate +\
++ is %d\n", stream->status);
++ return -EBADRQC;
++ }
++ stream->curr_bytes = 0;
++ stream->cumm_bytes = 0;
++
++ printk(KERN_DEBUG "SST DBG:new buffers count %d status %d\n",
++ mmap_buf->entries, stream->status);
++ buf_entry = mmap_buf->buff;
++ for (i = 0; i < mmap_buf->entries; i++) {
++ BUG_ON(!buf_entry);
++ bufs = kzalloc(sizeof(*bufs), GFP_KERNEL);
++ if (!bufs) {
++ printk(KERN_ERR
++ "SST ERR: mem allocation failed \n ");
++ return -ENOMEM;
++ }
++ bufs->size = buf_entry->size;
++ bufs->offset = buf_entry->offset;
++ bufs->addr = sst_drv_ctx->mmap_mem;
++ bufs->in_use = false;
++ buf_entry++;
++ /* locking here */
++ mutex_lock(&stream->lock);
++ list_add_tail(&bufs->node, &stream->bufs);
++ mutex_unlock(&stream->lock);
++ }
++
++ mutex_lock(&stream->lock);
++ stream->data_blk.condition = false;
++ stream->data_blk.ret_code = 0;
++ if (stream->status == STREAM_INIT &&
++ stream->prev != STREAM_UN_INIT &&
++ stream->need_draining != true) {
++ stream->prev = stream->status;
++ stream->status = STREAM_RUNNING;
++ if (stream->ops == STREAM_OPS_PLAYBACK) {
++ printk(KERN_DEBUG "SST DBG:play frames...\n");
++ if (sst_play_frame(str_id) < 0) {
++ printk(KERN_ERR
++ "SST ERR: play frames failed \n");
++ mutex_unlock(&stream->lock);
++ return -EIO;
++ }
++ } else if (stream->ops == STREAM_OPS_CAPTURE) {
++ printk(KERN_DEBUG "SST DBG:capture frames...\n");
++ if (sst_capture_frame(str_id) < 0) {
++ printk(KERN_ERR
++ "SST ERR: capture frames failed \n");
++ mutex_unlock(&stream->lock);
++ return -EIO;
++ }
++ }
++ }
++ mutex_unlock(&stream->lock);
++ /* Block the call for reply */
++ if (!list_empty(&stream->bufs)) {
++ printk(KERN_DEBUG "SST DBG:ioctl waiting...\n");
++ stream->data_blk.on = true;
++ retval = sst_wait_interruptible(sst_drv_ctx,
++ &stream->data_blk);
++ }
++
++ if (retval >= 0)
++ retval = stream->cumm_bytes;
++ printk(KERN_DEBUG "SST DBG:end of play/rec +\
++ ioctl bytes = %d!!\n", retval);
++ return retval;
++}
++
++/**
++* intel_sst_play_capture - sets user data buffers to play/capture
++*/
++static int intel_sst_play_capture(struct stream_info *stream, int str_id)
++{
++ int retval;
++
++ stream->data_blk.ret_code = 0;
++ stream->data_blk.on = true;
++ stream->data_blk.condition = false;
++
++ mutex_lock(&stream->lock);
++ if (stream->status == STREAM_INIT && stream->prev != STREAM_UN_INIT) {
++ /* stream is started */
++ stream->prev = stream->status;
++ stream->status = STREAM_RUNNING;
++ }
++
++ if (stream->status == STREAM_INIT && stream->prev == STREAM_UN_INIT) {
++ /* stream is not started yet */
++ printk(KERN_DEBUG "SST DBG:Stream isnt started yet state %d, prev %d \n",
++ stream->status, stream->prev);
++ } else if ((stream->status == STREAM_RUNNING ||
++ stream->status == STREAM_PAUSED) &&
++ stream->need_draining != true) {
++ /* stream is started */
++ if (stream->ops == STREAM_OPS_PLAYBACK ||
++ stream->ops == STREAM_OPS_PLAYBACK_DRM) {
++ if (sst_play_frame(str_id) < 0) {
++ printk(KERN_ERR
++ "SST ERR: play frames failed \n");
++ mutex_unlock(&stream->lock);
++ return -EIO;
++ }
++ } else if (stream->ops == STREAM_OPS_CAPTURE) {
++ if (sst_capture_frame(str_id) < 0) {
++ printk(KERN_ERR
++ "SST ERR: capture frames failed \n ");
++ mutex_unlock(&stream->lock);
++ return -EIO;
++ }
++ }
++ } else {
++ printk(KERN_ERR
++ "SST ERR: Streamstate %d invalid,prev %d\n",\
++ stream->status, stream->prev);
++ mutex_unlock(&stream->lock);
++ return -EIO;
++ }
++ mutex_unlock(&stream->lock);
++ /* Block the call for reply */
++ printk(KERN_DEBUG "SST DBG:write waiting...\n");
++
++ retval = sst_wait_interruptible(sst_drv_ctx, &stream->data_blk);
++ if (retval) {
++ stream->status = STREAM_INIT;
++ printk(KERN_DEBUG "SST DBG:wait returned error...\n");
++ }
++ printk(KERN_DEBUG "SST DBG:write returning\n");
++ return retval;
++}
++
++/**
++* snd_sst_fill_kernel_list - fills kernel list with buffer addresses for
++* SST DSP driver to process
++*/
++static int snd_sst_fill_kernel_list(struct stream_info *stream,
++ const struct iovec *iovec, unsigned long nr_segs,
++ struct list_head *copy_to_list)
++{
++ struct sst_stream_bufs *stream_bufs;
++ unsigned long index, data_not_copied, mmap_len;
++ unsigned char *bufp;
++ unsigned long size, copied_size;
++ int retval = 0, add_to_list = 0;
++ static int sent_offset;
++ static unsigned long sent_index;
++
++ stream_bufs = kzalloc(sizeof(*stream_bufs), GFP_KERNEL);
++ if (!stream_bufs) {
++ printk(KERN_ERR
++ "SST ERR: memory allocation failed \n ");
++ return -ENOMEM;
++ }
++ stream_bufs->addr = sst_drv_ctx->mmap_mem;
++ if (stream->ops == STREAM_OPS_PLAYBACK_DRM) {
++ for (index = stream->sg_index; index < nr_segs; index++) {
++ __u32 rar_handle;
++ struct sst_stream_bufs *stream_bufs =
++ kzalloc(sizeof(*stream_bufs), GFP_KERNEL);
++
++ stream->sg_index = index;
++ if (!stream_bufs) {
++ printk(KERN_ERR
++ "SST ERR: mry alocation failed \n");
++ return -ENOMEM;
++ }
++ retval = copy_from_user((void *) &rar_handle,
++ iovec[index].iov_base,
++ sizeof(__u32));
++ if (retval != 0) {
++ printk(KERN_ERR
++ "SST ERR: copy from user +\
++ failed\n");
++ return -EIO;
++ }
++ stream_bufs->addr = (char *)rar_handle;
++ printk(KERN_DEBUG "SST DBG:rar handle +\
++ received = 0x%x\n", (__u32)stream_bufs->addr);
++ stream_bufs->in_use = false;
++ stream_bufs->size = iovec[0].iov_len;
++ printk(KERN_DEBUG "size = 0x%x", stream_bufs->size);
++ /* locking here */
++ mutex_lock(&stream->lock);
++ list_add_tail(&stream_bufs->node, &stream->bufs);
++ mutex_unlock(&stream->lock);
++ }
++ stream->sg_index = index;
++ return retval;
++ }
++ mmap_len = sst_drv_ctx->mmap_len;
++ stream_bufs->addr = sst_drv_ctx->mmap_mem;
++ bufp = stream->cur_ptr;
++
++ printk(KERN_DEBUG "SST DBG:mmap_len - %lx\n", mmap_len);
++ copied_size = 0;
++
++ if (!stream->sg_index)
++ sent_index = sent_offset = 0;
++
++ for (index = stream->sg_index; index < nr_segs; index++) {
++ stream->sg_index = index;
++ printk(KERN_DEBUG "SST DBG:index - %lx, cur_ptr - %p\n", index, stream->cur_ptr);
++ printk(KERN_DEBUG "SST DBG:base - %p, size - 0x%x\n", iovec[index].iov_base,
++ iovec[index].iov_len);
++ printk(KERN_DEBUG "SST DBG:bufp - %p\n", bufp);
++ if (!stream->cur_ptr)
++ bufp = iovec[index].iov_base;
++
++ size = ((unsigned long)iovec[index].iov_base
++ + iovec[index].iov_len) - (unsigned long) bufp;
++
++ printk(KERN_DEBUG "SST DBG:size - %lx\n", size);
++ if ((copied_size + size) > mmap_len)
++ size = mmap_len - copied_size;
++
++ printk(KERN_DEBUG "SST DBG:size - %lx\n", size);
++
++ if (stream->ops == STREAM_OPS_PLAYBACK) {
++ printk(KERN_DEBUG "SST DBG:Playback stream copying now....\n");
++ data_not_copied = copy_from_user(
++ (void *)(stream_bufs->addr + copied_size),
++ bufp, size);
++ if (data_not_copied > 0) {
++ /* Clean up the list and return error code */
++ printk(KERN_ERR
++ "SST ERR: cpyfrmusr not coped -%ld", data_not_copied);
++ retval = -EIO;
++ break;
++ }
++ } else if (stream->ops == STREAM_OPS_CAPTURE) {
++ struct snd_sst_user_cap_list *entry =
++ kzalloc(sizeof(*entry), GFP_KERNEL);
++
++ if (!entry) {
++ printk(KERN_ERR
++ "SST ERR: mem allocation failed \n");
++ /* FIXME cleanup prev */
++ return -ENOMEM;
++ }
++ entry->iov_index = index;
++ entry->iov_offset = (unsigned long) bufp -
++ (unsigned long)iovec[index].iov_base;
++ entry->offset = copied_size;
++ entry->size = size;
++ printk(KERN_DEBUG "SST DBG:ENTRY:ioindx %d,iooff %ld,koff %ld,ksz %ld \n",
++ entry->iov_index, entry->iov_offset,
++ entry->offset, entry->size);
++ list_add_tail(&entry->node, copy_to_list);
++ }
++
++ printk(KERN_DEBUG "SST DBG:cur_ptr - %lx\n", (unsigned long) stream->cur_ptr);
++ stream->cur_ptr = bufp + size;
++
++ if (((unsigned long)iovec[index].iov_base
++ + iovec[index].iov_len) < ((unsigned long)iovec[index].iov_base) ) {
++ printk(KERN_DEBUG "SST DBG:Buffer overflows");
++ return -EINVAL;
++ }
++
++ if (((unsigned long)iovec[index].iov_base
++ + iovec[index].iov_len) ==
++ (unsigned long)stream->cur_ptr) {
++ stream->cur_ptr = NULL;
++ stream->sg_index++;
++ }
++
++ copied_size += size;
++ printk(KERN_DEBUG "SST DBG:copied_size - %lx\n", copied_size);
++ if ((copied_size >= mmap_len) ||
++ (stream->sg_index == nr_segs)) {
++ add_to_list = 1;
++ }
++
++ if (add_to_list) {
++ stream_bufs->in_use = false;
++ stream_bufs->size = copied_size;
++ /* locking here */
++ mutex_lock(&stream->lock);
++ list_add_tail(&stream_bufs->node, &stream->bufs);
++ mutex_unlock(&stream->lock);
++ break;
++ }
++ }
++ return retval;
++}
++
++/**
++* snd_sst_copy_userbuf_capture - This function copies the captured data
++* returned from SST DSP engine to the user buffers
++*/
++static int snd_sst_copy_userbuf_capture(struct stream_info *stream,
++ const struct iovec *iovec,
++ struct list_head *copy_to_list)
++{
++ struct snd_sst_user_cap_list *entry, *_entry;
++ struct sst_stream_bufs *kbufs = NULL, *_kbufs;
++ int retval = 0;
++ unsigned long data_not_copied;
++
++ /* copy sent buffers */
++ /* FIXME optimze */
++ printk(KERN_DEBUG "SST DBG:capture stream copying to user now...\n");
++ list_for_each_entry_safe(kbufs, _kbufs, &stream->bufs, node) {
++ if (kbufs->in_use == true) {
++ /* copy to user */
++ list_for_each_entry_safe(entry, _entry,
++ copy_to_list, node) {
++ printk(KERN_DEBUG "SST DBG:filling now... \n");
++ printk(KERN_DEBUG "SST DBG:iindx %d,ioff %ld,koff %ld,ksz %ld \n",
++ entry->iov_index, entry->iov_offset,
++ entry->offset, entry->size);
++ printk(KERN_DEBUG "SST DBG:Copying at %p size %lx\n",
++ iovec[entry->iov_index].iov_base +
++ entry->iov_offset,
++ entry->size);
++ data_not_copied = copy_to_user((void *)
++ iovec[entry->iov_index].iov_base +
++ entry->iov_offset,
++ kbufs->addr + entry->offset,
++ entry->size);
++ if (data_not_copied > 0) {
++ /* Clean up the list and return error */
++ printk(KERN_ERR
++ "SST ERR: copy to user err -%ld\n ", data_not_copied);
++ retval = -EIO;
++ break;
++ }
++ list_del(&entry->node);
++ kfree(entry);
++ }
++ printk(KERN_DEBUG "SST DBG:coming out of loop\n");
++ }
++ }
++ printk(KERN_DEBUG "SST DBG:end of cap copy\n");
++ return retval;
++}
++
++/*
++ * snd_sst_userbufs_play_cap - constructs the list from user buffers
++ * @iovec: pointer to iovec structure
++ * @nr_segs: number entries in the iovec structure
++ * @str_id: stream id
++ * @stream: pointer to stream_info structure
++ * This function will traverse the user list and copy the data to the kernel
++ * space buffers.
++ */ /* FIXME cleanups in this fn no mem leaks due to link list */
++static int snd_sst_userbufs_play_cap(const struct iovec *iovec,
++ unsigned long nr_segs, unsigned int str_id,
++ struct stream_info *stream)
++{
++ int retval;
++ LIST_HEAD(copy_to_list);
++
++
++ retval = snd_sst_fill_kernel_list(stream, iovec, nr_segs,
++ &copy_to_list);
++
++ retval = intel_sst_play_capture(stream, str_id);
++ if (retval < 0)
++ return retval;
++
++ if (stream->ops == STREAM_OPS_CAPTURE) {
++ retval = snd_sst_copy_userbuf_capture(stream, iovec,
++ &copy_to_list);
++ }
++ return retval;
++}
++
++/**
++* intel_sst_read_write - This function is common function across read/write
++* for user buffers called from system calls
++*/
++static int intel_sst_read_write(unsigned int str_id, char __user *buf,
++ size_t count)
++{
++ int retval;
++ struct stream_info *stream;
++ struct iovec iovec;
++ unsigned long nr_segs;
++
++ retval = sst_validate_strid(str_id);
++ if (retval)
++ return -EINVAL;
++ stream = &sst_drv_ctx->streams[str_id];
++ if (stream->mmapped == true) {
++ printk(KERN_ERR
++ "SST ERR: user write and stream is mapped");
++ return -EIO;
++ }
++ if (!count) {
++ printk(KERN_ERR
++ "SST ERR: args invalid %d", retval);
++ return -EINVAL;
++ }
++ stream->curr_bytes = 0;
++ stream->cumm_bytes = 0;
++ /* copy user buf details */
++ printk(KERN_DEBUG "SST DBG:new buffers %p, copy size %d, status %d\n" ,
++ buf, (int) count, (int) stream->status);
++
++ stream->buf_type = SST_BUF_USER_STATIC;
++ iovec.iov_base = (void *)buf;
++ iovec.iov_len = count;
++ nr_segs = 1;
++
++ do {
++ retval = snd_sst_userbufs_play_cap(&iovec, nr_segs,
++ str_id, stream);
++
++ if (retval < 0)
++ break;
++
++ } while (stream->sg_index < nr_segs);
++
++ stream->sg_index = 0;
++ stream->cur_ptr = NULL;
++ if (retval >= 0)
++ retval = stream->cumm_bytes;
++ printk(KERN_DEBUG "SST DBG:end of play/rec bytes = %d!!\n", retval);
++ return retval;
++}
++
++/*
++ * intel_sst_write - This function is called when user tries to play out data
++ * @file_ptr: pointer to file
++ * @buf: user buffer to be played out
++ * @count: size of tthe buffer
++ * @offset: offset to start from
++ */
++int intel_sst_write(struct file *file_ptr, const char __user *buf,
++ size_t count, loff_t *offset)
++{
++ struct ioctl_pvt_data *data =
++ (struct ioctl_pvt_data *)file_ptr->private_data;
++ int str_id = data->str_id;
++ struct stream_info *stream = &sst_drv_ctx->streams[str_id];
++
++ printk(KERN_DEBUG "SST DBG:called for %d\n", str_id);
++ if (stream->status == STREAM_UN_INIT ||
++ stream->status == STREAM_DECODE) {
++ printk(KERN_ERR "SST ERR: BAD REQUEST ");
++ return -EBADRQC;
++ }
++ return intel_sst_read_write(str_id, (char __user *)buf, count);
++}
++
++/*
++ * intel_sst_aio_write - This function is called when user tries to play out
++ * multiple data buffers
++ * @kiocb: pointer to a structure containing file pointer
++ * @iov: list of user buffer to be played out
++ * @nr_segs: number of entries
++ * @offset: offset to start from
++ */
++ssize_t intel_sst_aio_write(struct kiocb *kiocb, const struct iovec *iov,
++ unsigned long nr_segs, loff_t offset)
++{
++ int retval;
++ struct ioctl_pvt_data *data =
++ (struct ioctl_pvt_data *)kiocb->ki_filp->private_data;
++ int str_id = data->str_id;
++ struct stream_info *stream;
++
++ printk(KERN_DEBUG "SST DBG:entry - %ld\n", nr_segs);
++
++ if (is_sync_kiocb(kiocb) == false) {
++ printk(KERN_ERR
++ "SST ERR: aio_writ frm userspace is not alowed\n");
++ return -EINVAL;
++ }
++
++ printk(KERN_DEBUG "SST DBG:called for str_id %d \n", str_id);
++ retval = sst_validate_strid(str_id);
++ if (retval) {
++ printk(KERN_ERR
++ "SST ERR: invalid stream id \n ");
++ return -EINVAL;
++ }
++ stream = &sst_drv_ctx->streams[str_id];
++ if (stream->mmapped == true) {
++ printk(KERN_ERR
++ "SST ERR: user write & stream is mapped");
++ return -EIO;
++ }
++ if (stream->status == STREAM_UN_INIT ||
++ stream->status == STREAM_DECODE) {
++ printk(KERN_ERR "SST ERR: BAD REQUEST");
++ return -EBADRQC;
++ }
++ stream->curr_bytes = 0;
++ stream->cumm_bytes = 0;
++ printk(KERN_DEBUG "SST DBG:new segs %ld, offset %d, status %d\n" ,
++ nr_segs, (int) offset, (int) stream->status);
++ stream->buf_type = SST_BUF_USER_STATIC;
++ do {
++ retval = snd_sst_userbufs_play_cap(iov, nr_segs,
++ str_id, stream);
++ if (retval < 0)
++ break;
++
++ } while (stream->sg_index < nr_segs);
++
++ stream->sg_index = 0;
++ stream->cur_ptr = NULL;
++ if (retval >= 0)
++ retval = stream->cumm_bytes;
++ printk(KERN_DEBUG "SST DBG:end of play/rec bytes = %d!!\n", retval);
++ return retval;
++}
++
++/*
++ * intel_sst_read - This function is called when user tries to capture data
++ * @file_ptr: pointer to file
++ * @buf: user buffer to be filled with captured data
++ * @count: size of tthe buffer
++ * @offset: offset to start from
++ */
++int intel_sst_read(struct file *file_ptr, char __user *buf,
++ size_t count, loff_t *offset)
++{
++ struct ioctl_pvt_data *data =
++ (struct ioctl_pvt_data *)file_ptr->private_data;
++ int str_id = data->str_id;
++ struct stream_info *stream = &sst_drv_ctx->streams[str_id];
++
++ printk(KERN_DEBUG "SST DBG:called for %d\n", str_id);
++ if (stream->status == STREAM_UN_INIT ||
++ stream->status == STREAM_DECODE) {
++ printk(KERN_ERR"SST ERR: BAD REQUEST!\n");
++ return -EBADRQC;
++ }
++ return intel_sst_read_write(str_id, buf, count);
++}
++
++/*
++ * intel_sst_aio_read - This function is called when user tries to capture out
++ * multiple data buffers
++ * @kiocb: pointer to a structure containing file pointer
++ * @iov: list of user buffer to be filled with captured
++ * @nr_segs: number of entries
++ * @offset: offset to start from
++ */
++
++ssize_t intel_sst_aio_read(struct kiocb *kiocb, const struct iovec *iov,
++ unsigned long nr_segs, loff_t offset)
++{
++ int retval;
++ struct ioctl_pvt_data *data =
++ (struct ioctl_pvt_data *)kiocb->ki_filp->private_data;
++ int str_id = data->str_id;
++ struct stream_info *stream;
++
++ printk(KERN_DEBUG "SST DBG:entry - %ld\n", nr_segs);
++
++ if (is_sync_kiocb(kiocb) == false) {
++ printk(KERN_DEBUG "SST DBG:aio_read from user space is not allowed\n");
++ return -EINVAL;
++ }
++
++ printk(KERN_DEBUG "SST DBG:called for str_id %d \n", str_id);
++ retval = sst_validate_strid(str_id);
++ if (retval)
++ return -EINVAL;
++ stream = &sst_drv_ctx->streams[str_id];
++ if (stream->mmapped == true) {
++ printk(KERN_ERR
++ "SST ERR: user write stream is mapped!!! ");
++ return -EIO;
++ }
++ if (stream->status == STREAM_UN_INIT ||
++ stream->status == STREAM_DECODE) {
++ printk(KERN_ERR "SST ERR: BAD REQUEST!\n ");
++ return -EBADRQC;
++ }
++ stream->curr_bytes = 0;
++ stream->cumm_bytes = 0;
++
++ printk(KERN_DEBUG "SST DBG:new segs %ld, offset %d, status %d\n" ,
++ nr_segs, (int) offset, (int) stream->status);
++ stream->buf_type = SST_BUF_USER_STATIC;
++ do {
++ retval = snd_sst_userbufs_play_cap(iov, nr_segs,
++ str_id, stream);
++ if (retval < 0)
++ break;
++
++ } while (stream->sg_index < nr_segs);
++
++ stream->sg_index = 0;
++ stream->cur_ptr = NULL;
++ if (retval >= 0)
++ retval = stream->cumm_bytes;
++ printk(KERN_DEBUG "SST DBG:end of play/rec bytes = %d!!\n", retval);
++ return retval;
++}
++
++/*
++ * sst_print_stream_params - prints the stream parameters (debug fn)
++ */
++static void sst_print_stream_params(struct snd_sst_get_stream_params *get_prm)
++{
++ printk(KERN_DEBUG "SST DBG:codec params:result =%d\n",
++ get_prm->codec_params.result);
++ printk(KERN_DEBUG "SST DBG:codec params:stream = %d\n",
++ get_prm->codec_params.stream_id);
++ printk(KERN_DEBUG "SST DBG:codec params:codec = %d\n",
++ get_prm->codec_params.codec);
++ printk(KERN_DEBUG "SST DBG:codec params:ops = %d\n",
++ get_prm->codec_params.ops);
++ printk(KERN_DEBUG "SST DBG:codec params:stream_type= %d\n",
++ get_prm->codec_params.stream_type);
++ printk(KERN_DEBUG "SST DBG:pcmparams:sfreq= %d\n",
++ get_prm->pcm_params.sfreq);
++ printk(KERN_DEBUG "SST DBG:pcmparams:num_chan= %d\n",
++ get_prm->pcm_params.num_chan);
++ printk(KERN_DEBUG "SST DBG:pcmparams:pcm_wd_sz= %d\n",
++ get_prm->pcm_params.pcm_wd_sz);
++ return;
++}
++
++/*
++ * sst_print_fw_info - prints the firmware information (debug fn)
++ */
++static void sst_print_fw_info(struct snd_sst_fw_info *fw_info)
++{
++ printk(KERN_DEBUG "SST DBG:build = %d\n", fw_info->fw_version.build);
++ printk(KERN_DEBUG "SST DBG:minor = %d\n", fw_info->fw_version.minor);
++ printk(KERN_DEBUG "SST DBG:major= %d\n", fw_info->fw_version.major);
++ printk(KERN_DEBUG "SST DBG:max pcm = %d\n", fw_info->max_pcm_streams_supported);
++ printk(KERN_DEBUG "SST DBG:max enc = %d\n", fw_info->max_enc_streams_supported);
++ printk(KERN_DEBUG "SST DBG:min input buf = %d\n", fw_info->min_input_buf);
++ printk(KERN_DEBUG "SST DBG:pop:src_min= %d\n", fw_info->pop_info.src_min);
++ printk(KERN_DEBUG "SST DBG:pop:src_max= %d\n", fw_info->pop_info.src_max);
++ printk(KERN_DEBUG "SST DBG:pop:src= %d\n", fw_info->pop_info.src);
++ printk(KERN_DEBUG "SST DBG:pop:bass_boost= %d\n", fw_info->pop_info.bass_boost);
++ printk(KERN_DEBUG "SST DBG:pop:stereo_widening= %d\n", fw_info->pop_info.stereo_widening);
++ printk(KERN_DEBUG "SST DBG:pop:volume_control= %d\n", fw_info->pop_info.volume_control);
++ printk(KERN_DEBUG "SST DBG:pop:min_vol= %d\n", fw_info->pop_info.min_vol);
++ printk(KERN_DEBUG "SST DBG:pop:max_vol= %d\n", fw_info->pop_info.max_vol);
++ printk(KERN_DEBUG "SST DBG:prp:min_vol= %d\n", fw_info->prp_info.min_vol);
++ printk(KERN_DEBUG "SST DBG:prp:max_vol= %d\n", fw_info->prp_info.max_vol);
++ printk(KERN_DEBUG "SST DBG:prp:volume_control= %d\n", fw_info->prp_info.volume_control);
++ printk(KERN_DEBUG "SST DBG:mix:max streams = %d\n", fw_info->mix_info.max_streams);
++ printk(KERN_DEBUG "SST DBG:port0:port_type = %d\n", fw_info->port_info[0].port_type);
++ printk(KERN_DEBUG "SST DBG:port1:port_type = %d\n", fw_info->port_info[1].port_type);
++ return;
++}
++
++/*
++ * sst_get_stream_allocated - this function gets a stream allocated with
++ * the given params
++ */
++static int sst_get_stream_allocated(struct snd_sst_params *str_param,
++ u32 block, u32 pvt_id)
++{
++ int retval;
++ retval = sst_alloc_stream((char *) &str_param->sparams, str_param->ops,
++ str_param->codec, pvt_id);
++ if (retval) {
++ printk(KERN_ERR
++ "SST ERR: sst_alloc_stream failed %d \n", retval);
++ return retval;
++ }
++ /* Block the call for reply */
++ retval = sst_wait_timeout(sst_drv_ctx,
++ &sst_drv_ctx->alloc_block[block]);
++
++ return retval;
++}
++
++/*
++ * set_port_params - this function sets the port parameters at Sound card end
++ */
++static void set_port_params(struct snd_sst_params *str_param,
++ enum snd_sst_stream_ops ops)
++{
++ /*int sfreq = str_param->sparams.uc.pcm_params.sfreq;
++ int word_size = str_param->sparams.uc.pcm_params.pcm_wd_sz;
++
++ printk(KERN_DEBUG "SST DBG:sampling frequency = %d wd_size = %d \n", sfreq, word_size);
++
++ if (ops == STREAM_OPS_PLAYBACK ||
++ ops == STREAM_OPS_PLAYBACK_DRM) {
++ printk(KERN_DEBUG "SST DBG:Setting playback path and port settings...\n");
++ sst_drv_ctx->scard_ops.set_pcm_audio_params(sfreq,
++ word_size);
++ } else if (ops == STREAM_OPS_CAPTURE) {
++ printk(KERN_DEBUG "SST DBG:Setting capture path...\n");
++ sst_drv_ctx->scard_ops->set_pcm_audio_params(sfreq, word_size);
++ }*/
++ return;
++}
++
++/*
++ * sst_get_sfreq - this function returns the frequency of the stream
++ */
++static int sst_get_sfreq(struct snd_sst_params *str_param)
++{
++ switch (str_param->codec) {
++ case SST_CODEC_TYPE_PCM:
++ return str_param->sparams.uc.pcm_params.sfreq;
++ case SST_CODEC_TYPE_MP3:
++ return str_param->sparams.uc.mp3_params.sfreq;
++ case SST_CODEC_TYPE_AAC:
++ return str_param->sparams.uc.aac_params.sfreq;;
++ case SST_CODEC_TYPE_WMA9:
++ return str_param->sparams.uc.wma_params.sfreq;;
++ default:
++ return 0;
++ }
++}
++
++/*
++ * sst_stalled - this function checks if the lpe is in stalled state
++ */
++int sst_stalled(void)
++{
++ int retry = 1000;
++ int retval = -1;
++
++ while(retry) {
++ if ( !sst_drv_ctx->lpe_stalled )
++ return 0;
++ //wait for time and re-check
++ mdelay(1);
++
++ retry--;
++ }
++
++ printk(KERN_DEBUG "SST DBG:LPE is in Stalled State\n");
++ return retval;
++}
++/*
++ * sst_get_stream - this function prepares for stream allocation
++ */
++static int sst_get_stream(struct snd_sst_params *str_param, u32 pvt_id)
++{
++ int i, retval;
++ struct stream_info *str_info;
++
++ /* stream is not allocated, we are allocating */
++ i = sst_get_block_stream(sst_drv_ctx);
++ printk(KERN_DEBUG "SST DBG:alloc block allocated = %d\n", i);
++ if (i < 0)
++ return -ENOMEM;
++ sst_drv_ctx->alloc_block[i].sst_id = pvt_id;
++
++ retval = sst_get_stream_allocated(str_param, i, pvt_id);
++ if (retval == -(SST_LIB_ERR_LIB_DNLD_REQUIRED)) {
++ /* codec download is required */
++ struct snd_sst_alloc_response *response =
++ sst_drv_ctx->alloc_block[i].ops_block.data;
++ printk(KERN_DEBUG "SST DBG:Codec is required.... trying that\n");
++ retval = sst_load_library(&response->lib_dnld,
++ str_param->ops, pvt_id);
++ kfree(response);
++
++ if (!retval) {
++ printk(KERN_DEBUG "SST DBG:codec was downloaded sucesfully \n");
++ printk(KERN_DEBUG "SST DBG:try alloac again\n");
++ sst_drv_ctx->alloc_block[i].ops_block.condition = false;
++
++ retval = sst_get_stream_allocated(str_param, i, pvt_id);
++
++ if (retval <= 0)
++ goto err;
++ set_port_params(str_param, str_param->ops);
++
++ printk(KERN_DEBUG "SST DBG:Allocation done stream id %d \n", retval);
++ } else {
++ printk(KERN_DEBUG "SST DBG:codec download failed \n");
++ retval = -EIO;
++ goto err;
++ }
++ } else if (retval <= 0)
++ goto err;
++ else
++ set_port_params(str_param, str_param->ops);
++
++ /* store sampling freq */
++ str_info = &sst_drv_ctx->streams[retval];
++ str_info->sfreq = sst_get_sfreq(str_param);
++
++ /* power on the analog, if reqd */
++ if (str_param->ops == STREAM_OPS_PLAYBACK ||
++ str_param->ops == STREAM_OPS_PLAYBACK_DRM) {
++
++ sst_drv_ctx->scard_ops->power_up_pmic_pb(
++ sst_drv_ctx->pmic_port_instance);
++ /*Only if the playback is MP3 - Send a message*/
++#ifdef CONFIG_MSTWN_POWER_MGMT
++ if(str_info->codec == SST_CODEC_TYPE_MP3) {
++ sst_ospm_send_event(OSPM_EVENT_LPAUDIO_START);
++ sst_drv_ctx->lpaudio_start++;
++ printk(KERN_DEBUG "SST DBG:lpaudio_start:%d", sst_drv_ctx->lpaudio_start);
++ printk(KERN_DEBUG "SST DBG:Sending OSPM_EVENT_LPAUDIO_START...\n");
++ }else {/*Only if the playback is non - MP3- Send a messageif not sent already*/
++ if(sst_drv_ctx->audio_start == 0) {
++ sst_ospm_send_event(OSPM_EVENT_SUBSYS_START_PLAY);
++ sst_drv_ctx->audio_start++;
++ printk(KERN_DEBUG "SST DBG:audio_start:%d", sst_drv_ctx->audio_start);
++ printk(KERN_DEBUG "SST DBG:Sending OSPM_EVENT_SUBSYS_START_PLAY...\n");
++
++ }
++ else {
++ sst_drv_ctx->audio_start++;
++ }
++ }
++#endif
++ sst_drv_ctx->pb_streams++;
++ } else if (str_param->ops == STREAM_OPS_CAPTURE) {
++
++ sst_drv_ctx->scard_ops->power_up_pmic_cp(
++ sst_drv_ctx->pmic_port_instance);
++ /*Send a messageif not sent already*/
++#ifdef CONFIG_MSTWN_POWER_MGMT
++ if(sst_drv_ctx->audio_start == 0) {
++ sst_ospm_send_event(OSPM_EVENT_SUBSYS_START_PLAY);
++ printk(KERN_DEBUG "SST DBG:audio_start:%d", sst_drv_ctx->audio_start);
++ printk(KERN_DEBUG "SST DBG:Sending OSPM_EVENT_SUBSYS_START_PLAY...\n");
++ sst_drv_ctx->audio_start++;
++ }else {
++ sst_drv_ctx->audio_start++;
++ }
++#endif
++ sst_drv_ctx->cp_streams++;
++ }
++
++err:
++ sst_drv_ctx->alloc_block[i].sst_id = BLOCK_UNINIT;
++ return retval;
++}
++
++/**
++* intel_sst_ioctl - recieves the device ioctl's
++* @i_node: inode structure
++* @file_ptr: pointer to file
++* @cmd: Ioctl cmd
++* @arg: data
++*
++* This function is called by OS when a user space component
++* sends an Ioctl to SST driver
++*/
++int intel_sst_ioctl(struct inode *i_node, struct file *file_ptr,
++ unsigned int cmd, unsigned long arg)
++{
++ int retval = 0;
++ struct ioctl_pvt_data *data = NULL;
++ int str_id = 0, minor = 0;
++ dev_t device = i_node->i_rdev;
++
++ if (device == MKDEV(INTEL_SST_MAJOR, 0)) {
++ minor = 0;
++ data = (struct ioctl_pvt_data *)
++ file_ptr->private_data;
++ str_id = data->str_id;
++ } else if (device == MKDEV(INTEL_SST_MAJOR, 1))
++ minor = 1;
++ else
++ return -EINVAL;
++
++ if (sst_drv_ctx->sst_state != SST_FW_RUNNING) {
++ printk(KERN_ERR
++ "SST ERR: SST Not runng %d\n " , sst_drv_ctx->sst_state);
++ return -EBUSY;
++ }
++
++ switch (_IOC_NR(cmd)) {
++ case _IOC_NR(SNDRV_SST_STREAM_PAUSE):
++ printk(KERN_DEBUG "SST DBG:SNDRV_SST_IOCTL_PAUSE recieved for %d!\n", str_id);
++ if (minor != STREAM_MODULE) {
++ printk(KERN_ERR
++ "SST ERR: called for AM handle minor%d\n", minor);
++ retval = -EINVAL;
++ break;
++ }
++ retval = sst_pause_stream(str_id);
++ break;
++
++ case _IOC_NR(SNDRV_SST_STREAM_RESUME):
++ printk(KERN_DEBUG "SST DBG:SNDRV_SST_IOCTL_RESUME recieved!\n");
++ if (minor != STREAM_MODULE) {
++ printk(KERN_ERR
++ "SST ERR: caled for AM handle minor %d\n", minor);
++ retval = -EINVAL;
++ break;
++ }
++ retval = sst_resume_stream(str_id);
++ break;
++
++ case _IOC_NR(SNDRV_SST_STREAM_SET_PARAMS): {
++ struct snd_sst_params *str_param = (struct snd_sst_params *)arg;
++
++ printk(KERN_DEBUG "SST DBG:IOCTL_SET_PARAMS recieved!\n");
++ if (minor != STREAM_MODULE) {
++ printk(KERN_ERR
++ "SST ERR: caled for AM handle minor %d\n", minor);
++ retval = -EINVAL;
++ break;
++ }
++ sst_print_params(str_param);
++
++ if (!str_id) {
++ retval = sst_get_stream(str_param, data->pvt_id);
++ if (retval > 0) {
++ struct stream_info *str_info;
++ sst_drv_ctx->stream_cnt++;
++ data->str_id = retval;
++ str_info = &sst_drv_ctx->streams[retval];
++ str_info->src = SST_DRV;
++ retval = copy_to_user(&str_param->stream_id,
++ &retval, sizeof(__u32));
++ } else {
++ if (retval == -SST_ERR_INVALID_PARAMS)
++ retval = -EINVAL;
++ }
++ } else {
++ printk(KERN_DEBUG "SST DBG:SET_STREAM_PARAMS recieved!\n");
++ /* allocated set params only */
++ retval = sst_set_stream_param(str_id, str_param);
++ /* Block the call for reply */
++ if (!retval) {
++ int sfreq = 0, word_size = 0, num_channel = 0;
++ sfreq = str_param->sparams.uc.pcm_params.sfreq;
++ word_size = str_param->sparams.
++ uc.pcm_params.pcm_wd_sz;
++ num_channel = str_param->sparams.uc.pcm_params.num_chan;
++ if (str_param->ops == STREAM_OPS_CAPTURE) {
++ printk(KERN_DEBUG "SST DBG:SST sampling frequency= %d\n",
++ sfreq);
++ sst_drv_ctx->scard_ops->\
++ set_pcm_audio_params(sfreq, word_size, num_channel);
++ }
++ }
++ }
++ break;
++ }
++ case _IOC_NR(SNDRV_SST_SET_VOL): {
++ struct snd_sst_vol *set_vol;
++ struct snd_sst_vol *rec_vol = (struct snd_sst_vol *)arg;
++ printk(KERN_DEBUG "SST DBG:SNDRV_SST_SET_VOLUME recieved for %d!\n",
++ rec_vol->stream_id);
++ if (minor == STREAM_MODULE && rec_vol->stream_id == 0) {
++ printk(KERN_DEBUG "SST DBG:invalid operation!\n");
++ retval = -EPERM;
++ break;
++ }
++ set_vol = kzalloc(sizeof(*set_vol), GFP_ATOMIC);
++ if (!set_vol) {
++ printk(KERN_DEBUG "SST DBG:mem allocation failed\n");
++ retval = -ENOMEM;
++ break;
++ }
++ retval = copy_from_user(set_vol, rec_vol, sizeof(*set_vol));
++ if (retval) {
++ printk(KERN_DEBUG "SST DBG:copy failed\n");
++ retval = -EAGAIN;
++ break;
++ }
++ retval = sst_set_vol(set_vol);
++ kfree(set_vol);
++ break;
++ }
++ case _IOC_NR(SNDRV_SST_GET_VOL): {
++ struct snd_sst_vol *rec_vol = (struct snd_sst_vol *)arg;
++ struct snd_sst_vol get_vol;
++ printk(KERN_DEBUG "SST DBG:IOCTL_GET_VOLUME recieved for stream = %d!\n",
++ rec_vol->stream_id);
++ if (minor == STREAM_MODULE && rec_vol->stream_id == 0) {
++ printk(KERN_DEBUG "SST DBG:invalid operation!\n");
++ retval = -EPERM;
++ break;
++ }
++ get_vol.stream_id = rec_vol->stream_id;
++ retval = sst_get_vol(&get_vol);
++ if (retval) {
++ printk(KERN_ERR
++ "SST ERR: Get volume failed = %d\n", retval);
++ retval = -EIO;
++ break;
++ }
++ printk(KERN_DEBUG "SST DBG:id = %d\n, vol = %d, ramp_dur = %d, ramp_type=%d\n",
++ get_vol.stream_id, get_vol.volume,
++ get_vol.ramp_duration, get_vol.ramp_type);
++ retval = copy_to_user((struct snd_sst_vol *)arg,
++ &get_vol, sizeof(get_vol));
++ if (retval) {
++ printk(KERN_ERR
++ "SST ERR: copy to user failed %d\n", retval);
++ retval = -EIO;
++ break;
++ }
++ /*sst_print_get_vol_info(str_id, &get_vol);*/
++ break;
++ }
++
++ case _IOC_NR(SNDRV_SST_MUTE): {
++ struct snd_sst_mute *set_mute;
++ struct snd_sst_vol *rec_mute = (struct snd_sst_vol *)arg;
++ printk(KERN_DEBUG "SST DBG:SNDRV_SST_SET_VOLUME recieved for %d!\n",
++ rec_mute->stream_id);
++ if (minor == STREAM_MODULE && rec_mute->stream_id == 0) {
++ printk(KERN_DEBUG "SST DBG:invalid operation!\n");
++ retval = -EPERM;
++ break;
++ }
++ set_mute = kzalloc(sizeof(*set_mute), GFP_ATOMIC);
++ if (!set_mute) {
++ printk(KERN_DEBUG "SST DBG:mem allocation failed\n");
++ retval = -ENOMEM;
++ break;
++ }
++ retval = copy_from_user(set_mute, rec_mute, sizeof(*set_mute));
++ if (retval) {
++ printk(KERN_DEBUG "SST DBG:copy failed\n");
++ retval = -EAGAIN;
++ break;
++ }
++ retval = sst_set_mute(set_mute);
++ kfree(set_mute);
++ break;
++ }
++ case _IOC_NR(SNDRV_SST_STREAM_GET_PARAMS): {
++ struct snd_sst_get_stream_params get_params;
++
++ printk(KERN_DEBUG "SST DBG:IOCTL_GET_PARAMS recieved!\n");
++ if (minor != 0) {
++ printk(KERN_ERR
++ "SST ERR: called for AM handle minor %d\n", minor);
++ retval = -EINVAL;
++ break;
++ }
++
++ retval = sst_get_stream_params(str_id, &get_params);
++ if (retval) {
++ printk(KERN_ERR
++ "SST ERR: Get params failed = %d\n", retval);
++ retval = -EIO;
++ break;
++ }
++ retval = copy_to_user((struct snd_sst_get_stream_params *)arg,
++ &get_params, sizeof(get_params));
++ if (retval) {
++ printk(KERN_ERR
++ "SST ERR: copy to user failed %d\n" , retval);
++ retval = -EIO;
++ break;
++ }
++ sst_print_stream_params(&get_params);
++ break;
++ }
++
++ case _IOC_NR(SNDRV_SST_MMAP_PLAY):
++ case _IOC_NR(SNDRV_SST_MMAP_CAPTURE):
++ printk(KERN_DEBUG "SST DBG:SNDRV_SST_MMAP_PLAY/CAPTURE recieved!\n");
++ if (minor != STREAM_MODULE) {
++ printk(KERN_ERR
++ "SST ERR: called for AM handle minor %d\n" , minor);
++ retval = -EINVAL;
++ break;
++ }
++ retval = intel_sst_mmap_play_capture(str_id,
++ (struct snd_sst_mmap_buffs *)arg);
++ break;
++
++ case _IOC_NR(SNDRV_SST_STREAM_DROP):
++ printk(KERN_DEBUG "SST DBG:SNDRV_SST_IOCTL_DROP recieved!\n");
++ if (minor != STREAM_MODULE) {
++ retval = -EINVAL;
++ break;
++ }
++ retval = sst_drop_stream(str_id);
++ break;
++
++ case _IOC_NR(SNDRV_SST_STREAM_GET_TSTAMP): {
++ unsigned long long *ms = (unsigned long long *)arg;
++ struct snd_sst_tstamp tstamp = {0};
++ unsigned long long time, freq, mod;
++
++ printk(KERN_DEBUG "SST DBG:SNDRV_SST_STREAM_GET_TSTAMP recieved!\n");
++ if (minor != STREAM_MODULE) {
++ printk(KERN_ERR
++ "SST ERR: called for AM handle minor %d\n", minor);
++ retval = -EINVAL;
++ break;
++ }
++ memcpy_fromio(&tstamp,
++ ((void *)(sst_drv_ctx->mailbox + SST_TIME_STAMP)
++ +(str_id * sizeof(tstamp))),
++ sizeof(tstamp));
++ time = tstamp.samples_rendered;
++ printk(KERN_DEBUG "SST DBG:samples rendered! = 0x%llx\n", time);
++ freq = (unsigned long long) tstamp.sampling_frequency;
++ printk(KERN_DEBUG "SST DBG:freq = %llx\n", freq);
++ time = time * 1000; /* converting it to ms */
++ mod = do_div(time, freq);
++ printk(KERN_DEBUG "SST DBG:mod = 0x%llx\n", mod);
++ printk(KERN_DEBUG "SST DBG:msec = 0x%llx\n", time);
++ retval = copy_to_user(ms, &time, sizeof(*ms));
++ if (retval)
++ printk(KERN_ERR
++ "SST ERR: copy failed = %d\n", retval);
++ break;
++ }
++
++ case _IOC_NR(SNDRV_SST_STREAM_START):{
++ struct stream_info *stream;
++
++ printk(KERN_DEBUG "SST DBG:SNDRV_SST_STREAM_START recieved!\n");
++ if (minor != STREAM_MODULE) {
++ printk(KERN_ERR
++ "SST ERR: called for AM handle minor %d\n", minor);
++ retval = -EINVAL;
++ break;
++ }
++ retval = sst_validate_strid(str_id);
++ if (retval)
++ break;
++ stream = &sst_drv_ctx->streams[str_id];
++ mutex_lock(&stream->lock);
++ if (stream->status == STREAM_INIT &&
++ stream->need_draining != true) {
++ printk(KERN_DEBUG "SST DBG:calling play frames...\n");
++ stream->prev = stream->status;
++ stream->status = STREAM_RUNNING;
++ if (stream->ops == STREAM_OPS_PLAYBACK ||
++ stream->ops == STREAM_OPS_PLAYBACK_DRM) {
++ retval = sst_play_frame(str_id);
++ /*sst_ospm_send_event(
++ OSPM_EVENT_SUBSYS_START_PLAY);*/
++ } else if (stream->ops == STREAM_OPS_CAPTURE)
++ retval = sst_capture_frame(str_id);
++ else {
++ printk(KERN_ERR
++ "SST ERR: Invalid ops 0x%x\n" , stream->ops);
++ retval = -EINVAL;
++ mutex_unlock(
++ &sst_drv_ctx->streams[str_id].lock);
++ break;
++ }
++ if (retval < 0) {
++ printk(KERN_ERR
++ "SST ERR: play/cptur frame fail \n");
++ stream->status = STREAM_INIT;
++ mutex_unlock(
++ &sst_drv_ctx->streams[str_id].lock);
++ break;
++ }
++ } else {
++ printk(KERN_ERR
++ "SST ERR: Inv strt for stream%d state0x%x\n", \
++ str_id, stream->status);
++ retval = -EINVAL;
++ }
++ mutex_unlock(&sst_drv_ctx->streams[str_id].lock);
++ break;
++ }
++
++ case _IOC_NR(SNDRV_SST_SET_TARGET_DEVICE): {
++ struct snd_sst_target_device *target_device;
++
++ printk(KERN_DEBUG "SST DBG:SNDRV_SST_SET_TARGET_PLAYBACK DEVICE recieved!\n");
++ target_device = (struct snd_sst_target_device *)arg;
++ BUG_ON(!target_device);
++ if (minor != AM_MODULE) {
++ printk(KERN_ERR
++ "SST ERR: called for non AM handle minor %d\n", minor);
++ retval = -EINVAL;
++ break;
++ }
++ retval = sst_target_device_select(target_device);
++ break;
++ }
++
++ case _IOC_NR(SNDRV_SST_DRIVER_INFO): {
++ struct snd_sst_driver_info *info =
++ (struct snd_sst_driver_info *)arg;
++
++ printk(KERN_DEBUG "SST DBG:SNDRV_SST_DRIVER_INFO recived \n");
++ info->version = SST_VERSION_NUM;
++ /* hard coding, shud get sumhow later */
++ info->active_pcm_streams = sst_drv_ctx->stream_cnt -
++ sst_drv_ctx->encoded_cnt;
++ info->active_enc_streams = sst_drv_ctx->encoded_cnt;
++ info->max_pcm_streams = MAX_ACTIVE_STREAM - MAX_ENC_STREAM;
++ info->max_enc_streams = MAX_ENC_STREAM;
++ info->buf_per_stream = sst_drv_ctx->mmap_len;
++ break;
++ }
++
++ case _IOC_NR(SNDRV_SST_STREAM_DECODE): {
++ struct snd_sst_dbufs *param =
++ (struct snd_sst_dbufs *)arg, dbufs_local;
++ int i;
++ struct snd_sst_buffs ibufs, obufs;
++ struct snd_sst_buff_entry ibuf_temp[param->ibufs->entries],
++ obuf_temp[param->obufs->entries];
++
++ printk(KERN_DEBUG "SST DBG:SNDRV_SST_STREAM_DECODE recived \n");
++ if (minor != STREAM_MODULE) {
++ printk(KERN_ERR
++ "SST ERR: called for AM handle minor %d\n", minor);
++ retval = -EINVAL;
++ break;
++ }
++ if (!param) {
++ printk(KERN_ERR "SST ERR: null param passed\n");
++ retval = -EINVAL;
++ break;
++ }
++
++ dbufs_local.input_bytes_consumed = param->input_bytes_consumed;
++ dbufs_local.output_bytes_produced =
++ param->output_bytes_produced;
++ dbufs_local.ibufs = &ibufs;
++ dbufs_local.obufs = &obufs;
++ dbufs_local.ibufs->entries = param->ibufs->entries;
++ dbufs_local.ibufs->type = param->ibufs->type;
++ dbufs_local.obufs->entries = param->obufs->entries;
++ dbufs_local.obufs->type = param->obufs->type;
++
++ dbufs_local.ibufs->buff_entry = ibuf_temp;
++ for (i = 0; i < dbufs_local.ibufs->entries; i++) {
++ ibuf_temp[i].buffer =
++ param->ibufs->buff_entry[i].buffer;
++ ibuf_temp[i].size =
++ param->ibufs->buff_entry[i].size;
++ }
++ dbufs_local.obufs->buff_entry = obuf_temp;
++ for (i = 0; i < dbufs_local.obufs->entries; i++) {
++ obuf_temp[i].buffer =
++ param->obufs->buff_entry[i].buffer;
++ obuf_temp[i].size =
++ param->obufs->buff_entry[i].size;
++ }
++ retval = sst_decode(str_id, &dbufs_local);
++ if (retval) {
++ printk(KERN_ERR"SST ERR: decoding failed \n");
++ retval = -EAGAIN;
++ }
++ retval = copy_to_user(&param->input_bytes_consumed,
++ &dbufs_local.input_bytes_consumed,
++ sizeof(unsigned long long));
++ if (retval) {
++ printk(KERN_ERR"SST ERR: copy to user failed \n");
++ retval = -EAGAIN;
++ break;
++ }
++ retval = copy_to_user(&param->output_bytes_produced,
++ &dbufs_local.output_bytes_produced,
++ sizeof(unsigned long long));
++ if (retval) {
++ printk(KERN_ERR"SST ERR: copy to user failed \n");
++ retval = -EAGAIN;
++ break;
++ }
++ printk(KERN_DEBUG "SST DBG:input_bytes_consumed=%lld\n",
++ param->input_bytes_consumed);
++ printk(KERN_DEBUG "SST DBG:output_bytes_produced=%lld\n",
++ param->output_bytes_produced);
++ printk(KERN_DEBUG "SST DBG:ibufs->entries=%d\n", param->ibufs->entries);
++ printk(KERN_DEBUG "SST DBG:input_consumed = %lld, output_produced = %lld \n",
++ param->input_bytes_consumed,
++ param->output_bytes_produced);
++ printk(KERN_DEBUG "SST DBG:first ibufs size=%d\n",
++ param->ibufs->buff_entry[0].size);
++ printk(KERN_DEBUG "SST DBG:first ibufs addr=%p\n",
++ param->ibufs->buff_entry[0].buffer);
++ printk(KERN_DEBUG "SST DBG:obufs->entries=%d\n", param->obufs->entries);
++ printk(KERN_DEBUG "SST DBG:first obufs size=%d\n",
++ param->obufs->buff_entry[0].size);
++ printk(KERN_DEBUG "SST DBG:first obufs addr=%p\n",
++ param->obufs->buff_entry[0].buffer);
++ break;
++ }
++
++ case _IOC_NR(SNDRV_SST_STREAM_DRAIN):
++ printk(KERN_DEBUG "SST DBG:SNDRV_SST_STREAM_DRAIN recived \n");
++ if (minor != STREAM_MODULE) {
++ printk(KERN_ERR
++ "SST ERR: caled for AM handle minr %d\n", minor);
++ retval = -EINVAL;
++ break;
++ }
++ retval = sst_drain_stream(str_id);
++ break;
++
++ case _IOC_NR(SNDRV_SST_STREAM_BYTES_DECODED): {
++ unsigned long long *bytes = (unsigned long long *)arg;
++ struct snd_sst_tstamp tstamp = {0};
++
++ printk(KERN_DEBUG "SST DBG:SNDRV_SST_STREAM_BYTES_DECODED recieved!\n");
++ if (minor != STREAM_MODULE) {
++ printk(KERN_ERR
++ "SST ERR: caled for AM hndle minr %d\n", minor);
++ retval = -EINVAL;
++ break;
++ }
++ memcpy_fromio(&tstamp,
++ ((void *)(sst_drv_ctx->mailbox + SST_TIME_STAMP)
++ +(str_id * sizeof(tstamp))),
++ sizeof(tstamp));
++ retval = copy_to_user(bytes, &tstamp.bytes_processed,
++ sizeof(*bytes));
++ printk(KERN_DEBUG "SST DBG:bytes processed =%lld\n", tstamp.bytes_processed);
++ if (retval)
++ printk(KERN_ERR
++ "SST ERR: copy failed = %d\n", retval);
++ break;
++ }
++ case _IOC_NR(SNDRV_SST_FW_INFO): {
++ struct snd_sst_fw_info *fw_info;
++
++ printk(KERN_DEBUG "SST DBG:SNDRV_SST_FW_INFO recived \n");
++
++ fw_info = kzalloc(sizeof(*fw_info), GFP_ATOMIC);
++ if (!fw_info) {
++ printk(KERN_ERR "SST ERR: mem alocation fail\n");
++ retval = -ENOMEM;
++ break;
++ }
++ retval = sst_get_fw_info(fw_info);
++ if (retval) {
++ printk(KERN_ERR
++ "SST ERR: sst_get_fw_info fail = %d\n", retval);
++ kfree(fw_info);
++ break;
++ }
++ retval = copy_to_user((struct snd_sst_dbufs *)arg,
++ fw_info, sizeof(*fw_info));
++ if (retval) {
++ printk(KERN_ERR
++ "SST ERR: copy to user failed %d\n", retval);
++ kfree(fw_info);
++ retval = -EIO;
++ break;
++ }
++ sst_print_fw_info(fw_info);
++ kfree(fw_info);
++ break;
++ }
++ default:
++ printk(KERN_DEBUG "SST DBG:IOCTL not supported yet !\n");
++ retval = -ENOTTY;
++ }
++ printk(KERN_DEBUG "SST DBG:...complete ret code = %d\n", retval);
++
++ return retval;
++}
++
++/*
++ Intelmid driver interface Routines
++*/
++
++void sst_process_mad_ops(struct work_struct *work)
++{
++ struct mad_ops_wq *mad_ops =
++ container_of(work, struct mad_ops_wq, wq);
++ int retval = 0;
++ struct stream_info *stream;
++
++ switch (mad_ops->control_op) {
++ case SST_SND_PAUSE:
++ retval = sst_pause_stream(mad_ops->stream_id);
++ break;
++ case SST_SND_RESUME:
++ retval = sst_resume_stream(mad_ops->stream_id);
++ break;
++ case SST_SND_DROP:
++ retval = sst_drop_stream(mad_ops->stream_id);
++ break;
++ case SST_SND_STREAM_PROCESS:
++ printk(KERN_DEBUG "SST DBG:play/capt frames...\n");
++ stream = &sst_drv_ctx->streams[mad_ops->stream_id];
++ if (stream->status == STREAM_UN_INIT)
++ return;
++ stream->prev = stream->status;
++ stream->status = STREAM_RUNNING;
++ stream->data_blk.on = false;
++ if (stream->ops == STREAM_OPS_PLAYBACK)
++ retval = sst_play_frame(mad_ops->stream_id);
++ else if (stream->ops == STREAM_OPS_CAPTURE)
++ retval = sst_capture_frame(mad_ops->stream_id);
++ else
++ printk(KERN_ERR
++ "SST ERR: invalid stream ops invoked \n");
++ if (retval < 0)
++ printk(KERN_ERR
++ "SST ERR: play/captur frames failed \n");
++ break;
++ default:
++ printk(KERN_ERR
++ "SST ERR: wrong control_ops reported\n");
++ }
++ return;
++}
++/**
++* sst_control_set - Set Control params
++* @control_list: list of controls to be set
++*
++* This function is called by MID sound card driver to set
++* SST/Sound card controls. This is registered with MID driver
++*/
++int sst_control_set(int control_element, void *value)
++{
++ int retval = 0, str_id = 0, status;
++ struct stream_info *stream;
++
++ if (sst_drv_ctx->sst_state == SST_UN_INIT) {
++ /* FW is not downloaded */
++ printk(KERN_DEBUG "SST DBG:DSP Downloading FW now...\n");
++ retval = sst_download_fw();
++ if (retval) {
++ printk(KERN_ERR
++ "SST ERR: FW download failed = 0x%x, abort\n", retval);
++ return retval;
++ }
++ }
++
++ switch (control_element) {
++ case SST_SND_ALLOC: {
++ struct snd_sst_params *str_param;
++ int pcm_id = sst_assign_pvt_id(sst_drv_ctx);
++ struct stream_info *str_info;
++
++ str_param = (struct snd_sst_params *)value;
++ BUG_ON(!str_param);
++ sst_print_params(str_param);
++ retval = sst_get_stream(str_param, pcm_id);
++ if (retval >= 0)
++ sst_drv_ctx->stream_cnt++;
++ /*if (str_param->ops == STREAM_OPS_PLAYBACK ||
++ str_param->ops == STREAM_OPS_PLAYBACK_DRM)
++ sst_ospm_send_event(OSPM_EVENT_SUBSYS_START_PLAY);*/
++ str_info = &sst_drv_ctx->streams[retval];
++ str_info->src = MAD_DRV;
++ break;
++ }
++
++ case SST_SND_PAUSE:
++ case SST_SND_RESUME:
++ case SST_SND_DROP:
++ sst_drv_ctx->mad_ops.control_op = control_element;
++ sst_drv_ctx->mad_ops.stream_id = *(int *)value;
++ queue_work(sst_drv_ctx->mad_wq, &sst_drv_ctx->mad_ops.wq);
++ break;
++
++ case SST_SND_FREE:
++ str_id = *(int *)value;
++ stream = &sst_drv_ctx->streams[str_id];
++ free_stream_context(str_id);
++ stream->pcm_substream = NULL;
++ stream->period_elapsed = NULL;
++ sst_drv_ctx->stream_cnt--;
++ break;
++
++ case SST_SND_STREAM_INIT: {
++ struct pcm_stream_info *str_info;
++ struct stream_info *stream;
++
++ printk(KERN_DEBUG "SST DBG:stream init called\n");
++ str_info = (struct pcm_stream_info *)value;
++ str_id = str_info->str_id;
++ retval = sst_validate_strid(str_id);
++ if (retval)
++ break;
++
++ stream = &sst_drv_ctx->streams[str_id];
++ printk(KERN_DEBUG "SST DBG:setting the period ptrs\n");
++ stream->pcm_substream = str_info->mad_substream;
++ stream->period_elapsed = str_info->period_elapsed;
++ stream->sfreq = str_info->sfreq;
++ stream->prev = stream->status;
++ stream->status = STREAM_INIT;
++ break;
++ }
++
++ case SST_SND_BUFFER_POINTER: {
++ struct pcm_stream_info *stream_info;
++ struct snd_sst_tstamp fw_tstamp = {0,};
++ struct stream_info *stream;
++
++ // printk(KERN_DEBUG "SST DBG:buffer pointer query\n");
++
++ stream_info = (struct pcm_stream_info *)value;
++ str_id = stream_info->str_id;
++ retval = sst_validate_strid(str_id);
++ if (retval)
++ break;
++ stream = &sst_drv_ctx->streams[str_id];
++
++ if (!stream->pcm_substream)
++ break;
++ memcpy_fromio(&fw_tstamp,
++ ((void *)(sst_drv_ctx->mailbox + SST_TIME_STAMP)
++ +(str_id * sizeof(fw_tstamp))),
++ sizeof(fw_tstamp));
++
++ // printk(KERN_DEBUG "SST DBG:strid = %d\n", str_id);
++
++ if (stream->ops == STREAM_OPS_PLAYBACK)
++ stream_info->buffer_ptr = fw_tstamp.samples_rendered;
++ else
++ stream_info->buffer_ptr = fw_tstamp.samples_processed;
++ /* printk(KERN_DEBUG "SST DBG:samples played = %lld\n",
++ stream_info->buffer_ptr);
++ */
++ break;
++ }
++ case SST_ENABLE_RX_TIME_SLOT: {
++ status = *(int *)value;
++ sst_drv_ctx->rx_time_slot_status = status ;
++ printk(KERN_DEBUG "SST DBG:in case:: **********SST_ENABLE_RX_TIME_SLOT*********** \n");
++ sst_enable_rx_timeslot(status);
++ break;
++ }
++ default:
++ /* Illegal case */
++ printk(KERN_ERR"SST ERR: illegal req\n");
++ return -EINVAL;
++ }
++// printk(KERN_DEBUG "SST DBG:...complete ret code = %d\n", retval);
++
++ return retval;
++}
++
++
++/**
++* sst_send_data_to_HW - send data buffers
++* @buffer_data: user buffer
++*
++* This function is called by MID sound card driver to send buffer
++* to HW. This is registered with MID driver
++*/
++int sst_send_buffer_to_HW(int str_id, struct stream_buffer *mad_buf)
++{
++ /* recvd a buffer map it to stream */
++ /* this is a PCM stream and playback */
++ int retval = 0;
++ bool flag_add = false;
++ struct sst_stream_bufs *sst_buf = NULL, *_sst_buf;
++ struct stream_info *stream;
++
++ if (!mad_buf || !mad_buf->addr || !mad_buf->length) {
++ printk(KERN_ERR
++ "SST ERR: Null Ptr or buf size = 0\n");
++ return -EINVAL;
++ }
++
++ if (sst_drv_ctx->sst_state != SST_FW_RUNNING) {
++ printk(KERN_ERR
++ "SST ERR: SST Not runng: %d\n", sst_drv_ctx->sst_state);
++ return -EBUSY;
++ }
++
++ retval = sst_validate_strid(str_id);
++ if (retval < 0)
++ return -EINVAL;
++
++ stream = &sst_drv_ctx->streams[str_id];
++ printk(KERN_DEBUG "SST DBG:stream status = %d strid=%d\n", stream->status, str_id);
++ printk(KERN_DEBUG "SST DBG:stream codec = %d, prevstate=%d\n",
++ stream->codec, stream->prev);
++ if (stream->status == STREAM_UN_INIT) {
++ printk(KERN_ERR"SST ERR: BAD REQUEST!\n");
++ return -EBADRQC;
++ }
++ printk(KERN_DEBUG "SST DBG:received addr=0x%x size = 0x%x\n",
++ (unsigned int)mad_buf->addr, mad_buf->length);
++ /* list is not empty */
++ list_for_each_entry_safe(sst_buf, _sst_buf, &stream->bufs, node) {
++ if (sst_buf->in_use == true)
++ continue;
++ else if ((int) mad_buf->addr !=
++ (int)sst_buf->addr + sst_buf->size)
++ continue;
++ else {
++ sst_buf->size += mad_buf->length;
++ flag_add = true;
++ printk(KERN_DEBUG "SST DBG:inc addr = 0x%p, base = 0x%x inc_val = 0x%x\n",
++ sst_buf->addr, sst_buf->size, mad_buf->length);
++ break;
++ }
++ }
++
++ if (flag_add == false) {
++ sst_buf = kzalloc(sizeof(*sst_buf), GFP_ATOMIC);
++ if (!sst_buf)
++ return -ENOMEM;
++ sst_buf->size = mad_buf->length;
++ sst_buf->addr = (void *)mad_buf->addr;
++ sst_buf->offset = 0;
++ sst_buf->in_use = false;
++ /*adding without locking FIXME*/
++ if( in_interrupt()) {
++ list_add_tail(&sst_buf->node, &stream->bufs);
++ } else {
++ spin_lock(&stream->pcm_lock);
++ list_add_tail(&sst_buf->node, &stream->bufs);
++ spin_unlock(&stream->pcm_lock);
++ }
++
++
++ flag_add = true;
++ printk(KERN_DEBUG "SST DBG:entry added addr = 0x%x size = 0x%x\n",
++ (unsigned int)mad_buf->addr, mad_buf->length);
++ }
++
++ if (stream->status == STREAM_INIT) {
++ sst_drv_ctx->mad_ops.control_op = SST_SND_STREAM_PROCESS;
++ sst_drv_ctx->mad_ops.stream_id = str_id;
++ queue_work(sst_drv_ctx->mad_wq, &sst_drv_ctx->mad_ops.wq);
++ }
++
++ return retval;
++}
++
++struct intel_sst_card_ops sst_pmic_ops = {
++ .control_set = sst_control_set,
++ .send_buffer = sst_send_buffer_to_HW,
++};
++
++/**
++* register_sst_card- function for sound card to register
++* @card: pointer to structure of operations
++* This function is called card driver loads and is ready for registration
++*/
++int register_sst_card(struct intel_sst_card_ops *card)
++{
++
++ if (!card || !card->module_name) {
++ printk(KERN_ERR "SST ERR: Null Pointer Passed\n");
++ return -EINVAL;
++ }
++
++ if (sst_drv_ctx->pmic_state == SND_MAD_UN_INIT) {
++ /* register this driver */
++ if ((strncmp(SST_CARD_NAMES, card->module_name,
++ strlen(SST_CARD_NAMES))) == 0) {
++ sst_drv_ctx->pmic_vendor = card->vendor_id;
++ sst_drv_ctx->scard_ops = card->scard_ops;
++ sst_pmic_ops.module_name = card->module_name;
++ sst_drv_ctx->pmic_state = SND_MAD_INIT_DONE;
++ sst_drv_ctx->rx_time_slot_status = RX_TIMESLOT_UNINIT;
++ card->control_set = sst_pmic_ops.control_set;
++ card->send_buffer = sst_pmic_ops.send_buffer;
++ sst_drv_ctx->scard_ops->card_status = SND_CARD_UN_INIT;
++ /* initialize card to know good state */
++ /*sst_drv_ctx->scard_ops->init_card();*/
++ return 0;
++ } else {
++ printk(KERN_ERR
++ "SST ERR: strcmp failed %s \n", card->module_name);
++ return -EINVAL;
++ }
++
++ } else {
++ /* already registered a driver */
++ printk(KERN_ERR
++ "SST ERR: Repeat for register..denied\n");
++ return -EBADRQC;
++ }
++ return 0;
++}
++EXPORT_SYMBOL_GPL(register_sst_card);
++
++/**
++* unregister_sst_card- function for sound card to un-register
++* @card: pointer to structure of operations
++* This function is called when card driver unloads
++*/
++void unregister_sst_card(struct intel_sst_card_ops *card)
++{
++ if (sst_pmic_ops.module_name == card->module_name) {
++ /* unreg */
++ sst_pmic_ops.module_name = "";
++ sst_drv_ctx->pmic_state = SND_MAD_UN_INIT;
++ printk(KERN_DEBUG "SST DBG:Unregistered %s\n", card->module_name);
++ }
++ return;
++}
++EXPORT_SYMBOL_GPL(unregister_sst_card);
++
++/**
++* lpe_mask_periphral_intr- function to mask SST DSP peripheral interrupt
++* @device: device interrupt that needs masking
++*/
++int lpe_mask_periphral_intr(enum lpe_periphral device)
++{
++ union sst_pimr_reg pimr = {{0},};
++ if (!sst_drv_ctx)
++ return -EIO;
++
++ pimr.full = readl(sst_drv_ctx->shim + SST_PIMR);
++
++ switch (device) {
++ case LPE_DMA:
++ pimr.part.dmac_sc = 1;
++ /* dummy register for shim workaround */
++ writel(pimr.full, sst_drv_ctx->shim + SST_ISRD);
++ writel(pimr.full, sst_drv_ctx->shim + SST_PIMR);
++ break;
++
++ case LPE_SSP0:
++ break;
++
++ case LPE_SSP1:
++ break;
++
++ default:
++ break;
++ }
++ return 0;
++}
++EXPORT_SYMBOL_GPL(lpe_mask_periphral_intr);
++
++/**
++* lpe_unmask_periphral_intr- function to unmask SST DSP peripheral interrupt
++* @device: device interrupt that needs unmasking
++*/
++int lpe_unmask_periphral_intr(enum lpe_periphral device)
++{
++ union sst_pimr_reg pimr = {{0},};
++ if (!sst_drv_ctx)
++ return -EIO;
++
++ pimr.full = readl(sst_drv_ctx->shim + SST_PIMR);
++
++ switch (device) {
++ case LPE_DMA:
++ pimr.part.dmac_sc = 0;
++ /* dummy register for shim workaround */
++ writel(pimr.full, sst_drv_ctx->shim + SST_ISRD);
++ writel(pimr.full, sst_drv_ctx->shim + SST_PIMR);
++ break;
++
++ case LPE_SSP0:
++ break;
++
++ case LPE_SSP1:
++ break;
++
++ default:
++ break;
++ }
++ return 0;
++
++}
++EXPORT_SYMBOL_GPL(lpe_unmask_periphral_intr);
++
++/**
++* lpe_periphral_intr_status- function returns SST peripheral interrupt status
++* @device: device for which the status is enquired
++* @status: out parameters with the status of the peripheral device
++*/
++int lpe_periphral_intr_status(enum lpe_periphral device, int *status)
++{
++ union sst_pisr_reg pisr = {{0},};
++ if (!sst_drv_ctx)
++ return -EIO;
++
++ pisr.full = readl(sst_drv_ctx->shim + SST_PISR);
++
++ switch (device) {
++ case LPE_DMA:
++ *status = pisr.part.dmac;
++ break;
++
++ case LPE_SSP0:
++ break;
++
++ case LPE_SSP1:
++ break;
++
++ default:
++ break;
++ }
++ return 0;
++}
++EXPORT_SYMBOL_GPL(lpe_periphral_intr_status);
+--
+1.6.2.2
+
generated by cgit 1.2.3-korg (git 2.39.0) at 2024-05-18 15:18:34 +0000