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M7350/kernel/sound/soc/msm/msm-compr-q6.c

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M7350v1_en_gpl
2024-09-09 08:52:07 +00:00
/* Copyright (c) 2011-2013, The Linux Foundation. All rights reserved.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 and
* only 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.
*/
#include <linux/init.h>
#include <linux/err.h>
#include <linux/module.h>
#include <linux/moduleparam.h>
#include <linux/time.h>
#include <linux/wait.h>
#include <linux/platform_device.h>
#include <linux/slab.h>
#include <sound/core.h>
#include <sound/soc.h>
#include <sound/soc-dapm.h>
#include <sound/pcm.h>
#include <sound/initval.h>
#include <sound/control.h>
#include <sound/q6asm.h>
#include <sound/pcm_params.h>
#include <asm/dma.h>
#include <linux/dma-mapping.h>
#include <sound/timer.h>
#include <mach/qdsp6v2/q6core.h>
#include <sound/pcm.h>
#include "msm-compr-q6.h"
#include "msm-pcm-routing.h"
#define COMPRE_CAPTURE_NUM_PERIODS 16
/* Allocate the worst case frame size for compressed audio */
#define COMPRE_CAPTURE_HEADER_SIZE (sizeof(struct snd_compr_audio_info))
#define COMPRE_CAPTURE_MAX_FRAME_SIZE (6144)
#define COMPRE_CAPTURE_PERIOD_SIZE ((COMPRE_CAPTURE_MAX_FRAME_SIZE + \
COMPRE_CAPTURE_HEADER_SIZE) * \
MAX_NUM_FRAMES_PER_BUFFER)
#define COMPRE_OUTPUT_METADATA_SIZE (sizeof(struct output_meta_data_st))
struct snd_msm {
struct msm_audio *prtd;
unsigned volume;
};
static struct snd_msm compressed_audio = {NULL, 0x2000} ;
static struct audio_locks the_locks;
static struct snd_pcm_hardware msm_compr_hardware_capture = {
.info = (SNDRV_PCM_INFO_MMAP |
SNDRV_PCM_INFO_BLOCK_TRANSFER |
SNDRV_PCM_INFO_MMAP_VALID |
SNDRV_PCM_INFO_INTERLEAVED |
SNDRV_PCM_INFO_PAUSE | SNDRV_PCM_INFO_RESUME),
.formats = SNDRV_PCM_FMTBIT_S16_LE,
.rates = SNDRV_PCM_RATE_8000_48000,
.rate_min = 8000,
.rate_max = 48000,
.channels_min = 1,
.channels_max = 8,
.buffer_bytes_max =
COMPRE_CAPTURE_PERIOD_SIZE * COMPRE_CAPTURE_NUM_PERIODS ,
.period_bytes_min = COMPRE_CAPTURE_PERIOD_SIZE,
.period_bytes_max = COMPRE_CAPTURE_PERIOD_SIZE,
.periods_min = COMPRE_CAPTURE_NUM_PERIODS,
.periods_max = COMPRE_CAPTURE_NUM_PERIODS,
.fifo_size = 0,
};
static struct snd_pcm_hardware msm_compr_hardware_playback = {
.info = (SNDRV_PCM_INFO_MMAP |
SNDRV_PCM_INFO_BLOCK_TRANSFER |
SNDRV_PCM_INFO_MMAP_VALID |
SNDRV_PCM_INFO_INTERLEAVED |
SNDRV_PCM_INFO_PAUSE | SNDRV_PCM_INFO_RESUME),
.formats = SNDRV_PCM_FMTBIT_S16_LE,
.rates = SNDRV_PCM_RATE_8000_48000 | SNDRV_PCM_RATE_KNOT,
.rate_min = 8000,
.rate_max = 48000,
.channels_min = 1,
.channels_max = 8,
.buffer_bytes_max = 1024 * 1024,
.period_bytes_min = 128 * 1024,
.period_bytes_max = 256 * 1024,
.periods_min = 4,
.periods_max = 8,
.fifo_size = 0,
};
/* Conventional and unconventional sample rate supported */
static unsigned int supported_sample_rates[] = {
8000, 11025, 12000, 16000, 22050, 24000, 32000, 44100, 48000
};
static struct snd_pcm_hw_constraint_list constraints_sample_rates = {
.count = ARRAY_SIZE(supported_sample_rates),
.list = supported_sample_rates,
.mask = 0,
};
static void compr_event_handler(uint32_t opcode,
uint32_t token, uint32_t *payload, void *priv)
{
struct compr_audio *compr = priv;
struct msm_audio *prtd = &compr->prtd;
struct snd_pcm_substream *substream = prtd->substream;
struct snd_pcm_runtime *runtime = substream->runtime;
struct audio_aio_write_param param;
struct audio_aio_read_param read_param;
struct audio_buffer *buf = NULL;
struct output_meta_data_st output_meta_data;
uint32_t *ptrmem = (uint32_t *)payload;
int i = 0;
int time_stamp_flag = 0;
int buffer_length = 0;
pr_debug("%s opcode =%08x\n", __func__, opcode);
switch (opcode) {
case ASM_DATA_EVENT_WRITE_DONE: {
uint32_t *ptrmem = (uint32_t *)&param;
pr_debug("ASM_DATA_EVENT_WRITE_DONE\n");
pr_debug("Buffer Consumed = 0x%08x\n", *ptrmem);
prtd->pcm_irq_pos += prtd->pcm_count;
if (atomic_read(&prtd->start))
snd_pcm_period_elapsed(substream);
else
if (substream->timer_running)
snd_timer_interrupt(substream->timer, 1);
atomic_inc(&prtd->out_count);
wake_up(&the_locks.write_wait);
if (!atomic_read(&prtd->start)) {
atomic_set(&prtd->pending_buffer, 1);
break;
} else
atomic_set(&prtd->pending_buffer, 0);
if (runtime->status->hw_ptr >= runtime->control->appl_ptr) {
runtime->render_flag |= SNDRV_RENDER_STOPPED;
atomic_set(&prtd->pending_buffer, 1);
pr_debug("%s:compr driver underrun hw_ptr = %ld appl_ptr = %ld\n",
__func__, runtime->status->hw_ptr,
runtime->control->appl_ptr);
break;
}
buf = prtd->audio_client->port[IN].buf;
pr_debug("%s:writing %d bytes of buffer[%d] to dsp 2\n",
__func__, prtd->pcm_count, prtd->out_head);
pr_debug("%s:writing buffer[%d] from 0x%08x\n",
__func__, prtd->out_head,
((unsigned int)buf[0].phys
+ (prtd->out_head * prtd->pcm_count)));
if (runtime->tstamp_mode == SNDRV_PCM_TSTAMP_ENABLE)
time_stamp_flag = SET_TIMESTAMP;
else
time_stamp_flag = NO_TIMESTAMP;
memcpy(&output_meta_data, (char *)(buf->data +
prtd->out_head * prtd->pcm_count),
COMPRE_OUTPUT_METADATA_SIZE);
buffer_length = output_meta_data.frame_size;
pr_debug("meta_data_length: %d, frame_length: %d\n",
output_meta_data.meta_data_length,
output_meta_data.frame_size);
pr_debug("timestamp_msw: %d, timestamp_lsw: %d\n",
output_meta_data.timestamp_msw,
output_meta_data.timestamp_lsw);
if (buffer_length == 0) {
pr_debug("Recieved a zero length buffer-break out");
break;
}
param.paddr = (unsigned long)buf[0].phys
+ (prtd->out_head * prtd->pcm_count)
+ output_meta_data.meta_data_length;
param.len = buffer_length;
param.msw_ts = output_meta_data.timestamp_msw;
param.lsw_ts = output_meta_data.timestamp_lsw;
param.flags = time_stamp_flag;
param.uid = (unsigned long)buf[0].phys
+ (prtd->out_head * prtd->pcm_count
+ output_meta_data.meta_data_length);
for (i = 0; i < sizeof(struct audio_aio_write_param)/4;
i++, ++ptrmem)
pr_debug("cmd[%d]=0x%08x\n", i, *ptrmem);
if (q6asm_async_write(prtd->audio_client,
&param) < 0)
pr_err("%s:q6asm_async_write failed\n",
__func__);
else
prtd->out_head =
(prtd->out_head + 1) & (runtime->periods - 1);
break;
}
case ASM_DATA_CMDRSP_EOS:
pr_debug("ASM_DATA_CMDRSP_EOS\n");
if (atomic_read(&prtd->eos)) {
pr_debug("ASM_DATA_CMDRSP_EOS wake up\n");
prtd->cmd_ack = 1;
wake_up(&the_locks.eos_wait);
atomic_set(&prtd->eos, 0);
}
atomic_set(&prtd->pending_buffer, 1);
break;
case ASM_DATA_EVENT_READ_DONE: {
pr_debug("ASM_DATA_EVENT_READ_DONE\n");
pr_debug("buf = %p, data = 0x%X, *data = %p,\n"
"prtd->pcm_irq_pos = %d\n",
prtd->audio_client->port[OUT].buf,
*(uint32_t *)prtd->audio_client->port[OUT].buf->data,
prtd->audio_client->port[OUT].buf->data,
prtd->pcm_irq_pos);
memcpy(prtd->audio_client->port[OUT].buf->data +
prtd->pcm_irq_pos, (ptrmem + 2),
COMPRE_CAPTURE_HEADER_SIZE);
pr_debug("buf = %p, updated data = 0x%X, *data = %p\n",
prtd->audio_client->port[OUT].buf,
*(uint32_t *)(prtd->audio_client->port[OUT].buf->data +
prtd->pcm_irq_pos),
prtd->audio_client->port[OUT].buf->data);
if (!atomic_read(&prtd->start))
break;
pr_debug("frame size=%d, buffer = 0x%X\n", ptrmem[2],
ptrmem[1]);
if (ptrmem[2] > COMPRE_CAPTURE_MAX_FRAME_SIZE) {
pr_err("Frame length exceeded the max length");
break;
}
buf = prtd->audio_client->port[OUT].buf;
pr_debug("pcm_irq_pos=%d, buf[0].phys = 0x%X\n",
prtd->pcm_irq_pos, (uint32_t)buf[0].phys);
read_param.len = prtd->pcm_count - COMPRE_CAPTURE_HEADER_SIZE;
read_param.paddr = (unsigned long)(buf[0].phys) +
prtd->pcm_irq_pos + COMPRE_CAPTURE_HEADER_SIZE;
prtd->pcm_irq_pos += prtd->pcm_count;
if (atomic_read(&prtd->start))
snd_pcm_period_elapsed(substream);
q6asm_async_read(prtd->audio_client, &read_param);
break;
}
case ASM_DATA_EVENT_READ_COMPRESSED_DONE: {
pr_debug("ASM_DATA_EVENT_READ_COMPRESSED_DONE\n");
pr_debug("buf = %p, data = 0x%X, *data = %p,\n"
"prtd->pcm_irq_pos = %d\n",
prtd->audio_client->port[OUT].buf,
*(uint32_t *)prtd->audio_client->port[OUT].buf->data,
prtd->audio_client->port[OUT].buf->data,
prtd->pcm_irq_pos);
if (!atomic_read(&prtd->start))
break;
buf = prtd->audio_client->port[OUT].buf;
pr_debug("pcm_irq_pos=%d, buf[0].phys = 0x%X\n",
prtd->pcm_irq_pos, (uint32_t)buf[0].phys);
read_param.len = prtd->pcm_count;
read_param.paddr = (unsigned long)(buf[0].phys) +
prtd->pcm_irq_pos;
prtd->pcm_irq_pos += prtd->pcm_count;
if (atomic_read(&prtd->start))
snd_pcm_period_elapsed(substream);
q6asm_async_read_compressed(prtd->audio_client, &read_param);
break;
}
case APR_BASIC_RSP_RESULT: {
switch (payload[0]) {
case ASM_SESSION_CMD_RUN: {
if (substream->stream
!= SNDRV_PCM_STREAM_PLAYBACK) {
atomic_set(&prtd->start, 1);
break;
}
if (!atomic_read(&prtd->pending_buffer))
break;
pr_debug("%s:writing %d bytes"
" of buffer[%d] to dsp\n",
__func__, prtd->pcm_count, prtd->out_head);
buf = prtd->audio_client->port[IN].buf;
pr_debug("%s:writing buffer[%d] from 0x%08x\n",
__func__, prtd->out_head,
((unsigned int)buf[0].phys
+ (prtd->out_head * prtd->pcm_count)));
if (runtime->tstamp_mode == SNDRV_PCM_TSTAMP_ENABLE)
time_stamp_flag = SET_TIMESTAMP;
else
time_stamp_flag = NO_TIMESTAMP;
memcpy(&output_meta_data, (char *)(buf->data +
prtd->out_head * prtd->pcm_count),
COMPRE_OUTPUT_METADATA_SIZE);
buffer_length = output_meta_data.frame_size;
pr_debug("meta_data_length: %d, frame_length: %d\n",
output_meta_data.meta_data_length,
output_meta_data.frame_size);
pr_debug("timestamp_msw: %d, timestamp_lsw: %d\n",
output_meta_data.timestamp_msw,
output_meta_data.timestamp_lsw);
param.paddr = (unsigned long)buf[prtd->out_head].phys
+ output_meta_data.meta_data_length;
param.len = buffer_length;
param.msw_ts = output_meta_data.timestamp_msw;
param.lsw_ts = output_meta_data.timestamp_lsw;
param.flags = time_stamp_flag;
param.uid = (unsigned long)buf[prtd->out_head].phys
+ output_meta_data.meta_data_length;
if (q6asm_async_write(prtd->audio_client,
&param) < 0)
pr_err("%s:q6asm_async_write failed\n",
__func__);
else
prtd->out_head =
(prtd->out_head + 1)
& (runtime->periods - 1);
atomic_set(&prtd->pending_buffer, 0);
}
break;
case ASM_STREAM_CMD_FLUSH:
pr_debug("ASM_STREAM_CMD_FLUSH\n");
prtd->cmd_ack = 1;
wake_up(&the_locks.flush_wait);
break;
default:
break;
}
break;
}
default:
pr_debug("Not Supported Event opcode[0x%x]\n", opcode);
break;
}
}
static int msm_compr_playback_prepare(struct snd_pcm_substream *substream)
{
struct snd_pcm_runtime *runtime = substream->runtime;
struct compr_audio *compr = runtime->private_data;
struct snd_soc_pcm_runtime *soc_prtd = substream->private_data;
struct msm_audio *prtd = &compr->prtd;
struct asm_aac_cfg aac_cfg;
struct asm_wma_cfg wma_cfg;
struct asm_wmapro_cfg wma_pro_cfg;
struct asm_amrwbplus_cfg amrwb_cfg;
int ret;
pr_debug("compressed stream prepare\n");
prtd->pcm_size = snd_pcm_lib_buffer_bytes(substream);
prtd->pcm_count = snd_pcm_lib_period_bytes(substream);
prtd->pcm_irq_pos = 0;
/* rate and channels are sent to audio driver */
prtd->samp_rate = runtime->rate;
prtd->channel_mode = runtime->channels;
prtd->out_head = 0;
atomic_set(&prtd->out_count, runtime->periods);
if (prtd->enabled)
return 0;
switch (compr->info.codec_param.codec.id) {
case SND_AUDIOCODEC_MP3:
pr_debug("%s: SND_AUDIOCODEC_MP3\n", __func__);
ret = q6asm_media_format_block(prtd->audio_client,
compr->codec);
if (ret < 0)
pr_info("%s: CMD Format block failed\n", __func__);
break;
case SND_AUDIOCODEC_AAC:
pr_debug("%s: SND_AUDIOCODEC_AAC\n", __func__);
memset(&aac_cfg, 0x0, sizeof(struct asm_aac_cfg));
aac_cfg.aot = AAC_ENC_MODE_EAAC_P;
aac_cfg.format = 0x03;
aac_cfg.ch_cfg = runtime->channels;
aac_cfg.sample_rate = runtime->rate;
ret = q6asm_media_format_block_aac(prtd->audio_client,
&aac_cfg);
if (ret < 0)
pr_err("%s: CMD Format block failed\n", __func__);
break;
case SND_AUDIOCODEC_AC3_PASS_THROUGH:
case SND_AUDIOCODEC_DTS_PASS_THROUGH:
case SND_AUDIOCODEC_DTS_LBR_PASS_THROUGH:
pr_debug("compressd playback, no need to send decoder params");
pr_debug("decoder id: %d\n",
compr->info.codec_param.codec.id);
msm_pcm_routing_reg_psthr_stream(
soc_prtd->dai_link->be_id,
prtd->session_id, substream->stream,
1);
break;
case SND_AUDIOCODEC_WMA:
pr_debug("SND_AUDIOCODEC_WMA\n");
memset(&wma_cfg, 0x0, sizeof(struct asm_wma_cfg));
wma_cfg.format_tag = compr->info.codec_param.codec.format;
wma_cfg.ch_cfg = compr->info.codec_param.codec.ch_in;
wma_cfg.sample_rate = compr->info.codec_param.codec.sample_rate;
wma_cfg.avg_bytes_per_sec =
compr->info.codec_param.codec.bit_rate/8;
wma_cfg.block_align = compr->info.codec_param.codec.align;
wma_cfg.valid_bits_per_sample =
compr->info.codec_param.codec.options.wma.bits_per_sample;
wma_cfg.ch_mask =
compr->info.codec_param.codec.options.wma.channelmask;
wma_cfg.encode_opt =
compr->info.codec_param.codec.options.wma.encodeopt;
ret = q6asm_media_format_block_wma(prtd->audio_client,
&wma_cfg);
if (ret < 0)
pr_err("%s: CMD Format block failed\n", __func__);
break;
case SND_AUDIOCODEC_WMA_PRO:
pr_debug("SND_AUDIOCODEC_WMA_PRO\n");
memset(&wma_pro_cfg, 0x0, sizeof(struct asm_wmapro_cfg));
wma_pro_cfg.format_tag = compr->info.codec_param.codec.format;
wma_pro_cfg.ch_cfg = compr->info.codec_param.codec.ch_in;
wma_pro_cfg.sample_rate =
compr->info.codec_param.codec.sample_rate;
wma_pro_cfg.avg_bytes_per_sec =
compr->info.codec_param.codec.bit_rate/8;
wma_pro_cfg.block_align = compr->info.codec_param.codec.align;
wma_pro_cfg.valid_bits_per_sample =
compr->info.codec_param.codec\
.options.wma.bits_per_sample;
wma_pro_cfg.ch_mask =
compr->info.codec_param.codec.options.wma.channelmask;
wma_pro_cfg.encode_opt =
compr->info.codec_param.codec.options.wma.encodeopt;
wma_pro_cfg.adv_encode_opt =
compr->info.codec_param.codec.options.wma.encodeopt1;
wma_pro_cfg.adv_encode_opt2 =
compr->info.codec_param.codec.options.wma.encodeopt2;
ret = q6asm_media_format_block_wmapro(prtd->audio_client,
&wma_pro_cfg);
if (ret < 0)
pr_err("%s: CMD Format block failed\n", __func__);
break;
case SND_AUDIOCODEC_DTS:
case SND_AUDIOCODEC_DTS_LBR:
pr_debug("SND_AUDIOCODEC_DTS\n");
ret = q6asm_media_format_block(prtd->audio_client,
compr->codec);
if (ret < 0) {
pr_err("%s: CMD Format block failed\n", __func__);
return ret;
}
break;
case SND_AUDIOCODEC_AMRWB:
pr_debug("SND_AUDIOCODEC_AMRWB\n");
ret = q6asm_media_format_block(prtd->audio_client,
compr->codec);
if (ret < 0) {
pr_err("%s: CMD Format block failed\n", __func__);
return ret;
}
break;
case SND_AUDIOCODEC_AMRWBPLUS:
pr_debug("SND_AUDIOCODEC_AMRWBPLUS\n");
memset(&amrwb_cfg, 0x0, sizeof(struct asm_amrwbplus_cfg));
amrwb_cfg.size_bytes = sizeof(struct asm_amrwbplus_cfg);
pr_debug("calling q6asm_media_format_block_amrwbplus");
ret = q6asm_media_format_block_amrwbplus(prtd->audio_client,
&amrwb_cfg);
if (ret < 0) {
pr_err("%s: CMD Format block failed\n", __func__);
return ret;
}
break;
case SND_AUDIOCODEC_MP2:
pr_debug("%s: SND_AUDIOCODEC_MP2\n", __func__);
break;
default:
return -EINVAL;
}
if (compr->info.codec_param.codec.transcode_dts) {
msm_pcm_routing_reg_pseudo_stream(
MSM_FRONTEND_DAI_PSEUDO,
prtd->enc_audio_client->perf_mode,
prtd->enc_audio_client->session,
SNDRV_PCM_STREAM_CAPTURE,
48000, runtime->channels > 6 ?
6 : runtime->channels);
pr_debug("%s: cmd: DTS ENCDEC CFG BLK\n", __func__);
ret = q6asm_enc_cfg_blk_dts(prtd->enc_audio_client,
DTS_ENC_SAMPLE_RATE48k,
runtime->channels > 6 ?
6 : runtime->channels);
if (ret < 0)
pr_err("%s: CMD: DTS ENCDEC CFG BLK failed\n",
__func__);
}
prtd->enabled = 1;
prtd->cmd_ack = 0;
return 0;
}
static int msm_compr_capture_prepare(struct snd_pcm_substream *substream)
{
struct snd_pcm_runtime *runtime = substream->runtime;
struct compr_audio *compr = runtime->private_data;
struct snd_soc_pcm_runtime *soc_prtd = substream->private_data;
struct msm_audio *prtd = &compr->prtd;
struct audio_buffer *buf = prtd->audio_client->port[OUT].buf;
struct snd_codec *codec = &compr->info.codec_param.codec;
struct audio_aio_read_param read_param;
int ret = 0;
int i;
prtd->pcm_size = snd_pcm_lib_buffer_bytes(substream);
prtd->pcm_count = snd_pcm_lib_period_bytes(substream);
prtd->pcm_irq_pos = 0;
/* rate and channels are sent to audio driver */
prtd->samp_rate = runtime->rate;
prtd->channel_mode = runtime->channels;
if (prtd->enabled)
return ret;
read_param.len = prtd->pcm_count;
switch (codec->id) {
case SND_AUDIOCODEC_AMRWB:
pr_debug("SND_AUDIOCODEC_AMRWB\n");
ret = q6asm_enc_cfg_blk_amrwb(prtd->audio_client,
MAX_NUM_FRAMES_PER_BUFFER,
codec->options.generic.reserved[0] /*bitrate 0-8*/,
codec->options.generic.reserved[1] /*dtx mode 0/1*/);
if (ret < 0)
pr_err("%s: CMD Format block" \
"failed: %d\n", __func__, ret);
break;
case SND_AUDIOCODEC_PCM:
pr_debug("SND_AUDIOCODEC_PCM\n");
ret = q6asm_enc_cfg_blk_multi_ch_pcm(prtd->audio_client,
prtd->samp_rate, prtd->channel_mode);
if (ret < 0)
pr_info("%s: CMD Format block failed\n", __func__);
break;
default:
pr_debug("No config for codec %d\n", codec->id);
}
pr_debug("%s: Samp_rate = %d, Channel = %d, pcm_size = %d,\n"
"pcm_count = %d, periods = %d\n",
__func__, prtd->samp_rate, prtd->channel_mode,
prtd->pcm_size, prtd->pcm_count, runtime->periods);
for (i = 0; i < runtime->periods; i++) {
read_param.uid = i;
switch (codec->id) {
case SND_AUDIOCODEC_AMRWB:
case SND_AUDIOCODEC_PCM:
read_param.len = prtd->pcm_count
- COMPRE_CAPTURE_HEADER_SIZE;
read_param.paddr = (unsigned long)(buf[i].phys)
+ COMPRE_CAPTURE_HEADER_SIZE;
pr_debug("Push buffer [%d] to DSP, "\
"paddr: %p, vaddr: %p\n",
i, (void *) read_param.paddr,
buf[i].data);
q6asm_async_read(prtd->audio_client, &read_param);
break;
case SND_AUDIOCODEC_PASS_THROUGH:
read_param.paddr = (unsigned long)(buf[i].phys);
q6asm_async_read_compressed(prtd->audio_client,
&read_param);
break;
default:
pr_err("Invalid format");
ret = -EINVAL;
break;
}
}
prtd->periods = runtime->periods;
prtd->enabled = 1;
if (compr->info.codec_param.codec.id ==
SND_AUDIOCODEC_PASS_THROUGH)
msm_pcm_routing_reg_psthr_stream(
soc_prtd->dai_link->be_id,
prtd->session_id, substream->stream,
1);
return ret;
}
static int msm_compr_restart(struct snd_pcm_substream *substream)
{
struct snd_pcm_runtime *runtime = substream->runtime;
struct compr_audio *compr = runtime->private_data;
struct msm_audio *prtd = &compr->prtd;
struct audio_aio_write_param param;
struct audio_buffer *buf = NULL;
struct output_meta_data_st output_meta_data;
int time_stamp_flag = 0;
int buffer_length = 0;
pr_err("msm_compr_restart\n");
if (runtime->render_flag & SNDRV_RENDER_STOPPED) {
buf = prtd->audio_client->port[IN].buf;
pr_debug("%s:writing %d bytes of buffer[%d] to dsp 2\n",
__func__, prtd->pcm_count, prtd->out_head);
pr_debug("%s:writing buffer[%d] from 0x%08x\n",
__func__, prtd->out_head,
((unsigned int)buf[0].phys
+ (prtd->out_head * prtd->pcm_count)));
if (runtime->tstamp_mode == SNDRV_PCM_TSTAMP_ENABLE)
time_stamp_flag = SET_TIMESTAMP;
else
time_stamp_flag = NO_TIMESTAMP;
memcpy(&output_meta_data, (char *)(buf->data +
prtd->out_head * prtd->pcm_count),
COMPRE_OUTPUT_METADATA_SIZE);
buffer_length = output_meta_data.frame_size;
pr_debug("meta_data_length: %d, frame_length: %d\n",
output_meta_data.meta_data_length,
output_meta_data.frame_size);
pr_debug("timestamp_msw: %d, timestamp_lsw: %d\n",
output_meta_data.timestamp_msw,
output_meta_data.timestamp_lsw);
if (buffer_length == 0) {
pr_debug("Recieved a zero length buffer-break out");
return -EINVAL;
}
param.paddr = (unsigned long)buf[0].phys
+ (prtd->out_head * prtd->pcm_count)
+ output_meta_data.meta_data_length;
param.len = buffer_length;
param.msw_ts = output_meta_data.timestamp_msw;
param.lsw_ts = output_meta_data.timestamp_lsw;
param.flags = time_stamp_flag;
param.uid = (unsigned long)buf[0].phys
+ (prtd->out_head * prtd->pcm_count
+ output_meta_data.meta_data_length);
if (q6asm_async_write(prtd->audio_client,
&param) < 0)
pr_err("%s:q6asm_async_write failed\n",
__func__);
else
prtd->out_head =
(prtd->out_head + 1) & (runtime->periods - 1);
runtime->render_flag &= ~SNDRV_RENDER_STOPPED;
return 0;
}
return 0;
}
static int msm_compr_trigger(struct snd_pcm_substream *substream, int cmd)
{
int ret = 0;
struct snd_pcm_runtime *runtime = substream->runtime;
struct compr_audio *compr = runtime->private_data;
struct msm_audio *prtd = &compr->prtd;
pr_debug("%s\n", __func__);
switch (cmd) {
case SNDRV_PCM_TRIGGER_START:
prtd->pcm_irq_pos = 0;
/* intentional fall-through */
case SNDRV_PCM_TRIGGER_RESUME:
case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
pr_debug("%s: Trigger start\n", __func__);
q6asm_run_nowait(prtd->audio_client, 0, 0, 0);
if (prtd->enc_audio_client)
q6asm_run_nowait(prtd->enc_audio_client, 0, 0, 0);
atomic_set(&prtd->start, 1);
break;
case SNDRV_PCM_TRIGGER_STOP:
atomic_set(&prtd->start, 0);
runtime->render_flag &= ~SNDRV_RENDER_STOPPED;
break;
case SNDRV_PCM_TRIGGER_SUSPEND:
case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
pr_debug("SNDRV_PCM_TRIGGER_PAUSE\n");
q6asm_cmd_nowait(prtd->audio_client, CMD_PAUSE);
if (prtd->enc_audio_client)
q6asm_cmd_nowait(prtd->enc_audio_client, CMD_PAUSE);
atomic_set(&prtd->start, 0);
runtime->render_flag &= ~SNDRV_RENDER_STOPPED;
break;
default:
ret = -EINVAL;
break;
}
return ret;
}
static void populate_codec_list(struct compr_audio *compr,
struct snd_pcm_runtime *runtime)
{
pr_debug("%s\n", __func__);
/* MP3 Block */
compr->info.compr_cap.num_codecs = 14;
compr->info.compr_cap.min_fragment_size = runtime->hw.period_bytes_min;
compr->info.compr_cap.max_fragment_size = runtime->hw.period_bytes_max;
compr->info.compr_cap.min_fragments = runtime->hw.periods_min;
compr->info.compr_cap.max_fragments = runtime->hw.periods_max;
compr->info.compr_cap.codecs[0] = SND_AUDIOCODEC_MP3;
compr->info.compr_cap.codecs[1] = SND_AUDIOCODEC_AAC;
compr->info.compr_cap.codecs[2] = SND_AUDIOCODEC_AC3_PASS_THROUGH;
compr->info.compr_cap.codecs[3] = SND_AUDIOCODEC_WMA;
compr->info.compr_cap.codecs[4] = SND_AUDIOCODEC_WMA_PRO;
compr->info.compr_cap.codecs[5] = SND_AUDIOCODEC_DTS;
compr->info.compr_cap.codecs[6] = SND_AUDIOCODEC_DTS_LBR;
compr->info.compr_cap.codecs[7] = SND_AUDIOCODEC_DTS_PASS_THROUGH;
compr->info.compr_cap.codecs[8] = SND_AUDIOCODEC_AMRWB;
compr->info.compr_cap.codecs[9] = SND_AUDIOCODEC_AMRWBPLUS;
compr->info.compr_cap.codecs[10] = SND_AUDIOCODEC_PASS_THROUGH;
compr->info.compr_cap.codecs[11] = SND_AUDIOCODEC_PCM;
compr->info.compr_cap.codecs[12] = SND_AUDIOCODEC_MP2;
compr->info.compr_cap.codecs[13] = SND_AUDIOCODEC_DTS_LBR_PASS_THROUGH;
/* Add new codecs here and update num_codecs*/
}
static int msm_compr_open(struct snd_pcm_substream *substream)
{
struct snd_pcm_runtime *runtime = substream->runtime;
struct compr_audio *compr;
struct msm_audio *prtd;
int ret = 0;
struct asm_softpause_params softpause = {
.enable = SOFT_PAUSE_ENABLE,
.period = SOFT_PAUSE_PERIOD,
.step = SOFT_PAUSE_STEP,
.rampingcurve = SOFT_PAUSE_CURVE_LINEAR,
};
struct asm_softvolume_params softvol = {
.period = SOFT_VOLUME_PERIOD,
.step = SOFT_VOLUME_STEP,
.rampingcurve = SOFT_VOLUME_CURVE_LINEAR,
};
pr_debug("%s\n", __func__);
compr = kzalloc(sizeof(struct compr_audio), GFP_KERNEL);
if (compr == NULL) {
pr_err("Failed to allocate memory for msm_audio\n");
return -ENOMEM;
}
prtd = &compr->prtd;
prtd->substream = substream;
runtime->render_flag = SNDRV_DMA_MODE;
prtd->audio_client = q6asm_audio_client_alloc(
(app_cb)compr_event_handler, compr);
if (!prtd->audio_client) {
pr_info("%s: Could not allocate memory\n", __func__);
kfree(prtd);
return -ENOMEM;
}
prtd->audio_client->perf_mode = false;
pr_info("%s: session ID %d\n", __func__, prtd->audio_client->session);
prtd->session_id = prtd->audio_client->session;
if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
runtime->hw = msm_compr_hardware_playback;
prtd->cmd_ack = 1;
} else {
runtime->hw = msm_compr_hardware_capture;
}
ret = snd_pcm_hw_constraint_list(runtime, 0,
SNDRV_PCM_HW_PARAM_RATE,
&constraints_sample_rates);
if (ret < 0)
pr_info("snd_pcm_hw_constraint_list failed\n");
/* Ensure that buffer size is a multiple of period size */
ret = snd_pcm_hw_constraint_integer(runtime,
SNDRV_PCM_HW_PARAM_PERIODS);
if (ret < 0)
pr_info("snd_pcm_hw_constraint_integer failed\n");
prtd->dsp_cnt = 0;
atomic_set(&prtd->pending_buffer, 1);
if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
compr->codec = FORMAT_MP3;
populate_codec_list(compr, runtime);
runtime->private_data = compr;
atomic_set(&prtd->eos, 0);
compressed_audio.prtd = &compr->prtd;
ret = compressed_set_volume(0);
if (ret < 0)
pr_err("%s : Set Volume failed : %d", __func__, ret);
ret = q6asm_set_softpause(compressed_audio.prtd->audio_client,
&softpause);
if (ret < 0)
pr_err("%s: Send SoftPause Param failed ret=%d\n",
__func__, ret);
ret = q6asm_set_softvolume(compressed_audio.prtd->audio_client,
&softvol);
if (ret < 0)
pr_err("%s: Send SoftVolume Param failed ret=%d\n",
__func__, ret);
return 0;
}
int compressed_set_volume(unsigned volume)
{
int rc = 0;
if (compressed_audio.prtd && compressed_audio.prtd->audio_client) {
rc = q6asm_set_volume(compressed_audio.prtd->audio_client,
volume);
if (rc < 0) {
pr_err("%s: Send Volume command failed"
" rc=%d\n", __func__, rc);
}
}
compressed_audio.volume = volume;
return rc;
}
static int msm_compr_playback_close(struct snd_pcm_substream *substream)
{
struct snd_pcm_runtime *runtime = substream->runtime;
struct snd_soc_pcm_runtime *soc_prtd = substream->private_data;
struct compr_audio *compr = runtime->private_data;
struct msm_audio *prtd = &compr->prtd;
int dir = 0;
pr_debug("%s\n", __func__);
dir = IN;
atomic_set(&prtd->pending_buffer, 0);
prtd->pcm_irq_pos = 0;
q6asm_cmd(prtd->audio_client, CMD_CLOSE);
if (prtd->enc_audio_client)
q6asm_cmd(prtd->enc_audio_client, CMD_CLOSE);
compressed_audio.prtd = NULL;
q6asm_audio_client_buf_free_contiguous(dir,
prtd->audio_client);
switch (compr->info.codec_param.codec.id) {
case SND_AUDIOCODEC_AC3_PASS_THROUGH:
case SND_AUDIOCODEC_DTS_PASS_THROUGH:
case SND_AUDIOCODEC_DTS_LBR_PASS_THROUGH:
msm_pcm_routing_reg_psthr_stream(
soc_prtd->dai_link->be_id,
prtd->session_id, substream->stream,
0);
default:
msm_pcm_routing_dereg_phy_stream(
soc_prtd->dai_link->be_id,
SNDRV_PCM_STREAM_PLAYBACK);
}
if (compr->info.codec_param.codec.transcode_dts) {
msm_pcm_routing_dereg_pseudo_stream(MSM_FRONTEND_DAI_PSEUDO,
prtd->enc_audio_client->session);
}
if (prtd->enc_audio_client)
q6asm_audio_client_free(prtd->enc_audio_client);
q6asm_audio_client_free(prtd->audio_client);
kfree(prtd);
return 0;
}
static int msm_compr_capture_close(struct snd_pcm_substream *substream)
{
struct snd_pcm_runtime *runtime = substream->runtime;
struct snd_soc_pcm_runtime *soc_prtd = substream->private_data;
struct compr_audio *compr = runtime->private_data;
struct msm_audio *prtd = &compr->prtd;
int dir = OUT;
pr_debug("%s\n", __func__);
atomic_set(&prtd->pending_buffer, 0);
q6asm_cmd(prtd->audio_client, CMD_CLOSE);
compressed_audio.prtd = NULL;
q6asm_audio_client_buf_free_contiguous(dir,
prtd->audio_client);
if (compr->info.codec_param.codec.id ==
SND_AUDIOCODEC_PASS_THROUGH)
msm_pcm_routing_reg_psthr_stream(
soc_prtd->dai_link->be_id,
prtd->session_id, substream->stream,
0);
else
msm_pcm_routing_dereg_phy_stream(soc_prtd->dai_link->be_id,
SNDRV_PCM_STREAM_CAPTURE);
q6asm_audio_client_free(prtd->audio_client);
kfree(prtd);
return 0;
}
static int msm_compr_close(struct snd_pcm_substream *substream)
{
int ret = 0;
if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
ret = msm_compr_playback_close(substream);
else if (substream->stream == SNDRV_PCM_STREAM_CAPTURE)
ret = msm_compr_capture_close(substream);
return ret;
}
static int msm_compr_prepare(struct snd_pcm_substream *substream)
{
int ret = 0;
if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
ret = msm_compr_playback_prepare(substream);
else if (substream->stream == SNDRV_PCM_STREAM_CAPTURE)
ret = msm_compr_capture_prepare(substream);
return ret;
}
static snd_pcm_uframes_t msm_compr_pointer(struct snd_pcm_substream *substream)
{
struct snd_pcm_runtime *runtime = substream->runtime;
struct compr_audio *compr = runtime->private_data;
struct msm_audio *prtd = &compr->prtd;
if (prtd->pcm_irq_pos >= prtd->pcm_size)
prtd->pcm_irq_pos = 0;
pr_debug("%s: pcm_irq_pos = %d, pcm_size = %d, sample_bits = %d,\n"
"frame_bits = %d\n", __func__, prtd->pcm_irq_pos,
prtd->pcm_size, runtime->sample_bits,
runtime->frame_bits);
return bytes_to_frames(runtime, (prtd->pcm_irq_pos));
}
static int msm_compr_mmap(struct snd_pcm_substream *substream,
struct vm_area_struct *vma)
{
int result = 0;
struct snd_pcm_runtime *runtime = substream->runtime;
struct compr_audio *compr = runtime->private_data;
struct msm_audio *prtd = &compr->prtd;
pr_debug("%s\n", __func__);
prtd->mmap_flag = 1;
runtime->render_flag = SNDRV_NON_DMA_MODE;
if (runtime->dma_addr && runtime->dma_bytes) {
vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot);
result = remap_pfn_range(vma, vma->vm_start,
runtime->dma_addr >> PAGE_SHIFT,
runtime->dma_bytes,
vma->vm_page_prot);
} else {
pr_err("Physical address or size of buf is NULL");
return -EINVAL;
}
return result;
}
static int msm_compr_hw_params(struct snd_pcm_substream *substream,
struct snd_pcm_hw_params *params)
{
struct snd_pcm_runtime *runtime = substream->runtime;
struct snd_soc_pcm_runtime *soc_prtd = substream->private_data;
struct compr_audio *compr = runtime->private_data;
struct msm_audio *prtd = &compr->prtd;
struct snd_dma_buffer *dma_buf = &substream->dma_buffer;
struct audio_buffer *buf;
int dir, ret;
pr_debug("%s\n", __func__);
if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
dir = IN;
else
dir = OUT;
if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
switch (compr->info.codec_param.codec.id) {
case SND_AUDIOCODEC_AC3_PASS_THROUGH:
case SND_AUDIOCODEC_DTS_PASS_THROUGH:
case SND_AUDIOCODEC_DTS_LBR_PASS_THROUGH:
ret = q6asm_open_write_compressed(prtd->audio_client,
compr->codec);
if (ret < 0) {
pr_err("%s: Session out open failed\n",
__func__);
return -ENOMEM;
}
break;
default:
ret = q6asm_open_write(prtd->audio_client,
compr->codec);
if (ret < 0) {
pr_err("%s: Session out open failed\n",
__func__);
return -ENOMEM;
}
msm_pcm_routing_reg_phy_stream(
soc_prtd->dai_link->be_id,
prtd->audio_client->perf_mode,
prtd->session_id,
substream->stream);
if (compr->info.codec_param.codec.transcode_dts) {
prtd->enc_audio_client =
q6asm_audio_client_alloc(
(app_cb)compr_event_handler, compr);
if (!prtd->enc_audio_client) {
pr_err("%s: Could not allocate " \
"memory\n", __func__);
return -ENOMEM;
}
prtd->enc_audio_client->perf_mode = false;
pr_debug("%s Setting up loopback path\n",
__func__);
ret = q6asm_open_transcode_loopback(
prtd->enc_audio_client,
params_channels(params));
if (ret < 0) {
pr_err("%s: Session transcode " \
"loopback open failed\n",
__func__);
return -ENODEV;
}
}
break;
}
} else if (substream->stream == SNDRV_PCM_STREAM_CAPTURE) {
switch (compr->info.codec_param.codec.id) {
case SND_AUDIOCODEC_AMRWB:
pr_debug("q6asm_open_read(FORMAT_AMRWB)\n");
ret = q6asm_open_read(prtd->audio_client,
FORMAT_AMRWB);
if (ret < 0) {
pr_err("%s: compressed Session out open failed\n",
__func__);
return -ENOMEM;
}
pr_debug("msm_pcm_routing_reg_phy_stream\n");
msm_pcm_routing_reg_phy_stream(
soc_prtd->dai_link->be_id,
prtd->audio_client->perf_mode,
prtd->session_id, substream->stream);
break;
case SND_AUDIOCODEC_PCM:
pr_debug("q6asm_open_read(FORMAT_PCM)\n");
ret = q6asm_open_read(prtd->audio_client,
FORMAT_MULTI_CHANNEL_LINEAR_PCM);
if (ret < 0) {
pr_err("%s: compressed Session open failed\n",
__func__);
return -ENOMEM;
}
pr_debug("msm_pcm_routing_reg_phy_stream\n");
msm_pcm_routing_reg_phy_stream(
soc_prtd->dai_link->be_id,
prtd->audio_client->perf_mode,
prtd->session_id, substream->stream);
break;
case SND_AUDIOCODEC_PASS_THROUGH:
pr_debug("q6asm_open_read_compressed(COMPRESSED_META_DATA_MODE)\n");
ret = q6asm_open_read_compressed(prtd->audio_client,
MAX_NUM_FRAMES_PER_BUFFER,
COMPRESSED_META_DATA_MODE);
break;
default:
pr_err("Invalid codec for compressed session open\n");
return -EFAULT;
}
if (ret < 0) {
pr_err("%s: compressed Session out open failed\n",
__func__);
return -ENOMEM;
}
}
ret = q6asm_set_io_mode(prtd->audio_client, ASYNC_IO_MODE);
if (ret < 0) {
pr_err("%s: Set IO mode failed\n", __func__);
return -ENOMEM;
}
/* Modifying kernel hardware params based on userspace config */
if (params_periods(params) > 0 &&
(params_periods(params) != runtime->hw.periods_max)) {
runtime->hw.periods_max = params_periods(params);
}
if (params_period_bytes(params) > 0 &&
(params_period_bytes(params) != runtime->hw.period_bytes_min)) {
runtime->hw.period_bytes_min = params_period_bytes(params);
}
runtime->hw.buffer_bytes_max =
runtime->hw.period_bytes_min * runtime->hw.periods_max;
ret = q6asm_audio_client_buf_alloc_contiguous(dir,
prtd->audio_client,
runtime->hw.period_bytes_min,
runtime->hw.periods_max);
if (ret < 0) {
pr_err("Audio Start: Buffer Allocation failed "
"rc = %d\n", ret);
return -ENOMEM;
}
buf = prtd->audio_client->port[dir].buf;
dma_buf->dev.type = SNDRV_DMA_TYPE_DEV;
dma_buf->dev.dev = substream->pcm->card->dev;
dma_buf->private_data = NULL;
dma_buf->area = buf[0].data;
dma_buf->addr = buf[0].phys;
dma_buf->bytes = runtime->hw.buffer_bytes_max;
pr_debug("%s: buf[%p]dma_buf->area[%p]dma_buf->addr[%p]\n"
"dma_buf->bytes[%d]\n", __func__,
(void *)buf, (void *)dma_buf->area,
(void *)dma_buf->addr, dma_buf->bytes);
if (!dma_buf->area)
return -ENOMEM;
snd_pcm_set_runtime_buffer(substream, &substream->dma_buffer);
return 0;
}
static int msm_compr_ioctl(struct snd_pcm_substream *substream,
unsigned int cmd, void *arg)
{
int rc = 0;
struct snd_pcm_runtime *runtime = substream->runtime;
struct compr_audio *compr = runtime->private_data;
struct msm_audio *prtd = &compr->prtd;
uint64_t timestamp;
uint64_t temp;
switch (cmd) {
case SNDRV_COMPRESS_TSTAMP: {
struct snd_compr_tstamp tstamp;
pr_debug("SNDRV_COMPRESS_TSTAMP\n");
memset(&tstamp, 0x0, sizeof(struct snd_compr_tstamp));
rc = q6asm_get_session_time(prtd->audio_client, &timestamp);
if (rc < 0) {
pr_err("%s: fail to get session tstamp\n", __func__);
return rc;
}
temp = (timestamp * 2 * runtime->channels);
temp = temp * (runtime->rate/1000);
temp = div_u64(temp, 1000);
tstamp.sampling_rate = runtime->rate;
tstamp.timestamp = timestamp;
pr_debug("%s: bytes_consumed:,"
"timestamp = %lld,\n", __func__,
tstamp.timestamp);
if (copy_to_user((void *) arg, &tstamp,
sizeof(struct snd_compr_tstamp)))
return -EFAULT;
return 0;
}
case SNDRV_COMPRESS_GET_CAPS:
pr_debug("SNDRV_COMPRESS_GET_CAPS\n");
if (copy_to_user((void *) arg, &compr->info.compr_cap,
sizeof(struct snd_compr_caps))) {
rc = -EFAULT;
pr_err("%s: ERROR: copy to user\n", __func__);
return rc;
}
return 0;
case SNDRV_COMPRESS_SET_PARAMS:
pr_debug("SNDRV_COMPRESS_SET_PARAMS: ");
if (copy_from_user(&compr->info.codec_param, (void *) arg,
sizeof(struct snd_compr_params))) {
rc = -EFAULT;
pr_err("%s: ERROR: copy from user\n", __func__);
return rc;
}
/*
* DTS Security needed for the transcode path
*/
if (compr->info.codec_param.codec.transcode_dts) {
char modelId[128];
struct snd_dec_dts opt_dts =
compr->info.codec_param.codec.dts;
int modelIdLength = opt_dts.modelIdLength;
if (copy_from_user(modelId, (void *)opt_dts.modelId,
modelIdLength))
pr_err("%s: ERROR: copy modelId\n", __func__);
modelId[modelIdLength] = '\0';
pr_debug("%s: Received modelId =%s,length=%d\n",
__func__, modelId, modelIdLength);
core_set_dts_model_id(modelIdLength, modelId);
}
switch (compr->info.codec_param.codec.id) {
case SND_AUDIOCODEC_MP3:
/* For MP3 we dont need any other parameter */
pr_debug("SND_AUDIOCODEC_MP3\n");
compr->codec = FORMAT_MP3;
break;
case SND_AUDIOCODEC_AAC:
pr_debug("SND_AUDIOCODEC_AAC\n");
compr->codec = FORMAT_MPEG4_AAC;
break;
case SND_AUDIOCODEC_AC3_PASS_THROUGH:
pr_debug("SND_AUDIOCODEC_AC3_PASS_THROUGH\n");
compr->codec = FORMAT_AC3;
break;
case SND_AUDIOCODEC_WMA:
pr_debug("SND_AUDIOCODEC_WMA\n");
compr->codec = FORMAT_WMA_V9;
break;
case SND_AUDIOCODEC_WMA_PRO:
pr_debug("SND_AUDIOCODEC_WMA_PRO\n");
compr->codec = FORMAT_WMA_V10PRO;
break;
case SND_AUDIOCODEC_DTS_PASS_THROUGH:
pr_debug("SND_AUDIOCODEC_DTS_PASS_THROUGH\n");
compr->codec = FORMAT_DTS;
break;
case SND_AUDIOCODEC_DTS_LBR_PASS_THROUGH:
pr_debug("SND_AUDIOCODEC_DTS_LBR_PASS_THROUGH\n");
compr->codec = FORMAT_DTS_LBR;
break;
case SND_AUDIOCODEC_DTS: {
char modelId[128];
struct snd_dec_dts opt_dts =
compr->info.codec_param.codec.dts;
int modelIdLength = opt_dts.modelIdLength;
pr_debug("SND_AUDIOCODEC_DTS\n");
if (copy_from_user(modelId, (void *)opt_dts.modelId,
modelIdLength))
pr_err("%s: ERROR: copy modelId\n", __func__);
modelId[modelIdLength] = '\0';
pr_debug("%s: Received modelId =%s,length=%d\n",
__func__, modelId, modelIdLength);
core_set_dts_model_id(modelIdLength, modelId);
compr->codec = FORMAT_DTS;
}
break;
case SND_AUDIOCODEC_DTS_LBR:{
char modelId[128];
struct snd_dec_dts opt_dts =
compr->info.codec_param.codec.dts;
int modelIdLength = opt_dts.modelIdLength;
pr_debug("SND_AUDIOCODEC_DTS_LBR\n");
if (copy_from_user(modelId, (void *)opt_dts.modelId,
modelIdLength))
pr_err("%s: ERROR: copy modelId\n", __func__);
modelId[modelIdLength] = '\0';
pr_debug("%s: Received modelId =%s,length=%d\n",
__func__, modelId, modelIdLength);
core_set_dts_model_id(modelIdLength, modelId);
compr->codec = FORMAT_DTS_LBR;
}
break;
case SND_AUDIOCODEC_AMRWB:
pr_debug("msm_compr_ioctl SND_AUDIOCODEC_AMRWB\n");
compr->codec = FORMAT_AMRWB;
break;
case SND_AUDIOCODEC_AMRWBPLUS:
pr_debug("msm_compr_ioctl SND_AUDIOCODEC_AMRWBPLUS\n");
compr->codec = FORMAT_AMR_WB_PLUS;
break;
case SND_AUDIOCODEC_PASS_THROUGH:
/* format pass through is used for HDMI IN compressed
where the decoder format is indicated by LPASS */
pr_debug("msm_compr_ioctl SND_AUDIOCODEC_PASSTHROUGH\n");
compr->codec = FORMAT_PASS_THROUGH;
break;
case SND_AUDIOCODEC_PCM:
pr_debug("msm_compr_ioctl SND_AUDIOCODEC_PCM\n");
compr->codec = FORMAT_MULTI_CHANNEL_LINEAR_PCM;
break;
case SND_AUDIOCODEC_MP2:
pr_debug("SND_AUDIOCODEC_MP2\n");
compr->codec = FORMAT_MP2;
break;
default:
pr_err("msm_compr_ioctl failed..unknown codec\n");
return -EFAULT;
}
return 0;
case SNDRV_PCM_IOCTL1_RESET:
pr_debug("SNDRV_PCM_IOCTL1_RESET\n");
/* Flush only when session is started during CAPTURE,
while PLAYBACK has no such restriction. */
if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK ||
(substream->stream == SNDRV_PCM_STREAM_CAPTURE &&
atomic_read(&prtd->start))) {
if (atomic_read(&prtd->eos)) {
prtd->cmd_ack = 1;
wake_up(&the_locks.eos_wait);
atomic_set(&prtd->eos, 0);
atomic_set(&prtd->pending_buffer, 1);
}
/* A unlikely race condition possible with FLUSH
DRAIN if ack is set by flush and reset by drain */
prtd->cmd_ack = 0;
rc = q6asm_cmd(prtd->audio_client, CMD_FLUSH);
if (rc < 0) {
pr_err("%s: flush cmd failed rc=%d\n",
__func__, rc);
return rc;
}
rc = wait_event_timeout(the_locks.flush_wait,
prtd->cmd_ack, 5 * HZ);
if (!rc)
pr_err("Flush cmd timeout\n");
prtd->pcm_irq_pos = 0;
}
break;
case SNDRV_COMPRESS_DRAIN:
pr_debug("%s: SNDRV_COMPRESS_DRAIN\n", __func__);
atomic_set(&prtd->eos, 1);
atomic_set(&prtd->pending_buffer, 0);
prtd->cmd_ack = 0;
q6asm_cmd_nowait(prtd->audio_client, CMD_EOS);
/* Wait indefinitely for DRAIN. Flush can also signal this*/
rc = wait_event_interruptible(the_locks.eos_wait,
prtd->cmd_ack);
if (rc < 0)
pr_err("EOS cmd interrupted\n");
pr_debug("%s: SNDRV_COMPRESS_DRAIN out of wait\n", __func__);
return 0;
default:
break;
}
return snd_pcm_lib_ioctl(substream, cmd, arg);
}
static struct snd_pcm_ops msm_compr_ops = {
.open = msm_compr_open,
.hw_params = msm_compr_hw_params,
.close = msm_compr_close,
.ioctl = msm_compr_ioctl,
.prepare = msm_compr_prepare,
.trigger = msm_compr_trigger,
.pointer = msm_compr_pointer,
.mmap = msm_compr_mmap,
.restart = msm_compr_restart,
};
static int msm_asoc_pcm_new(struct snd_soc_pcm_runtime *rtd)
{
struct snd_card *card = rtd->card->snd_card;
int ret = 0;
if (!card->dev->coherent_dma_mask)
card->dev->coherent_dma_mask = DMA_BIT_MASK(32);
return ret;
}
static struct snd_soc_platform_driver msm_soc_platform = {
.ops = &msm_compr_ops,
.pcm_new = msm_asoc_pcm_new,
};
static __devinit int msm_compr_probe(struct platform_device *pdev)
{
pr_info("%s: dev name %s\n", __func__, dev_name(&pdev->dev));
return snd_soc_register_platform(&pdev->dev,
&msm_soc_platform);
}
static int msm_compr_remove(struct platform_device *pdev)
{
snd_soc_unregister_platform(&pdev->dev);
return 0;
}
static struct platform_driver msm_compr_driver = {
.driver = {
.name = "msm-compr-dsp",
.owner = THIS_MODULE,
},
.probe = msm_compr_probe,
.remove = __devexit_p(msm_compr_remove),
};
static int __init msm_soc_platform_init(void)
{
init_waitqueue_head(&the_locks.enable_wait);
init_waitqueue_head(&the_locks.eos_wait);
init_waitqueue_head(&the_locks.write_wait);
init_waitqueue_head(&the_locks.read_wait);
init_waitqueue_head(&the_locks.flush_wait);
return platform_driver_register(&msm_compr_driver);
}
module_init(msm_soc_platform_init);
static void __exit msm_soc_platform_exit(void)
{
platform_driver_unregister(&msm_compr_driver);
}
module_exit(msm_soc_platform_exit);
MODULE_DESCRIPTION("PCM module platform driver");
MODULE_LICENSE("GPL v2");
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