blob: 307e7a6fae653a84e0c860121e861d13158a01e4 [file] [log] [blame]
/* Copyright (c) 2016-2017, 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 <linux/of_device.h>
#include <linux/dma-mapping.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/timer.h>
#include <sound/hwdep.h>
#include <asm/dma.h>
#include <sound/tlv.h>
#include <sound/pcm_params.h>
#include <sound/devdep_params.h>
#include <dsp/msm_audio_ion.h>
#include <dsp/q6audio-v2.h>
#include "msm-pcm-q6-v2.h"
#include "msm-pcm-routing-v2.h"
#define PCM_MASTER_VOL_MAX_STEPS 0x2000
static const DECLARE_TLV_DB_LINEAR(msm_pcm_vol_gain, 0,
PCM_MASTER_VOL_MAX_STEPS);
struct snd_msm {
struct snd_card *card;
struct snd_pcm *pcm;
};
#define CMD_EOS_MIN_TIMEOUT_LENGTH 50
#define CMD_EOS_TIMEOUT_MULTIPLIER (HZ * 50)
#define ATRACE_END() \
trace_printk("tracing_mark_write: E\n")
#define ATRACE_BEGIN(name) \
trace_printk("tracing_mark_write: B|%d|%s\n", current->tgid, name)
#define ATRACE_FUNC() ATRACE_BEGIN(__func__)
#define ATRACE_INT(name, value) \
trace_printk("tracing_mark_write: C|%d|%s|%d\n", \
current->tgid, name, (int)(value))
#define SIO_PLAYBACK_MAX_PERIOD_SIZE PLAYBACK_MAX_PERIOD_SIZE
#define SIO_PLAYBACK_MIN_PERIOD_SIZE 48
#define SIO_PLAYBACK_MAX_NUM_PERIODS 512
#define SIO_PLAYBACK_MIN_NUM_PERIODS PLAYBACK_MIN_NUM_PERIODS
#define SIO_PLAYBACK_MIN_BYTES (SIO_PLAYBACK_MIN_NUM_PERIODS * \
SIO_PLAYBACK_MIN_PERIOD_SIZE)
#define SIO_PLAYBACK_MAX_BYTES ((SIO_PLAYBACK_MAX_NUM_PERIODS) * \
(SIO_PLAYBACK_MAX_PERIOD_SIZE))
#define SIO_CAPTURE_MAX_PERIOD_SIZE CAPTURE_MAX_PERIOD_SIZE
#define SIO_CAPTURE_MIN_PERIOD_SIZE 48
#define SIO_CAPTURE_MAX_NUM_PERIODS 512
#define SIO_CAPTURE_MIN_NUM_PERIODS CAPTURE_MIN_NUM_PERIODS
#define SIO_CAPTURE_MIN_BYTES (SIO_CAPTURE_MIN_NUM_PERIODS * \
SIO_CAPTURE_MIN_PERIOD_SIZE)
#define SIO_CAPTURE_MAX_BYTES (SIO_CAPTURE_MAX_NUM_PERIODS * \
SIO_CAPTURE_MAX_PERIOD_SIZE)
static struct snd_pcm_hardware msm_pcm_hardware_playback = {
.info = (SNDRV_PCM_INFO_MMAP |
SNDRV_PCM_INFO_BLOCK_TRANSFER |
SNDRV_PCM_INFO_MMAP_VALID |
SNDRV_PCM_INFO_INTERLEAVED |
SNDRV_PCM_INFO_NO_PERIOD_WAKEUP |
SNDRV_PCM_INFO_PAUSE | SNDRV_PCM_INFO_RESUME),
.formats = (SNDRV_PCM_FMTBIT_S16_LE |
SNDRV_PCM_FMTBIT_S24_LE |
SNDRV_PCM_FMTBIT_S24_3LE),
.rates = SNDRV_PCM_RATE_8000_192000,
.rate_min = 8000,
.rate_max = 192000,
.channels_min = 1,
.channels_max = 8,
.buffer_bytes_max = SIO_PLAYBACK_MAX_NUM_PERIODS *
SIO_PLAYBACK_MAX_PERIOD_SIZE,
.period_bytes_min = SIO_PLAYBACK_MIN_PERIOD_SIZE,
.period_bytes_max = SIO_PLAYBACK_MAX_PERIOD_SIZE,
.periods_min = SIO_PLAYBACK_MIN_NUM_PERIODS,
.periods_max = SIO_PLAYBACK_MAX_NUM_PERIODS,
.fifo_size = 0,
};
static struct snd_pcm_hardware msm_pcm_hardware_capture = {
.info = (SNDRV_PCM_INFO_MMAP |
SNDRV_PCM_INFO_BLOCK_TRANSFER |
SNDRV_PCM_INFO_MMAP_VALID |
SNDRV_PCM_INFO_INTERLEAVED |
SNDRV_PCM_INFO_NO_PERIOD_WAKEUP |
SNDRV_PCM_INFO_PAUSE | SNDRV_PCM_INFO_RESUME),
.formats = (SNDRV_PCM_FMTBIT_S16_LE |
SNDRV_PCM_FMTBIT_S24_LE |
SNDRV_PCM_FMTBIT_S24_3LE),
.rates = SNDRV_PCM_RATE_8000_48000,
.rate_min = 8000,
.rate_max = 48000,
.channels_min = 1,
.channels_max = 4,
.buffer_bytes_max = SIO_CAPTURE_MAX_NUM_PERIODS *
SIO_CAPTURE_MAX_PERIOD_SIZE,
.period_bytes_min = SIO_CAPTURE_MIN_PERIOD_SIZE,
.period_bytes_max = SIO_CAPTURE_MAX_PERIOD_SIZE,
.periods_min = SIO_CAPTURE_MIN_NUM_PERIODS,
.periods_max = SIO_CAPTURE_MAX_NUM_PERIODS,
.fifo_size = 0,
};
/* Conventional and unconventional sample rate supported */
static unsigned int supported_sample_rates[] = {
8000, 11025, 12000, 16000, 22050, 24000, 32000, 44100, 48000,
88200, 96000, 176400, 192000
};
static struct snd_pcm_hw_constraint_list constraints_sample_rates = {
.count = ARRAY_SIZE(supported_sample_rates),
.list = supported_sample_rates,
.mask = 0,
};
static unsigned long msm_pcm_fe_topology[MSM_FRONTEND_DAI_MAX];
/* default value is DTS (i.e read from device tree) */
static char const *msm_pcm_fe_topology_text[] = {
"DTS", "ULL", "ULL_PP", "LL" };
static const struct soc_enum msm_pcm_fe_topology_enum[] = {
SOC_ENUM_SINGLE_EXT(ARRAY_SIZE(msm_pcm_fe_topology_text),
msm_pcm_fe_topology_text),
};
static void event_handler(uint32_t opcode,
uint32_t token, uint32_t *payload, void *priv)
{
uint32_t *ptrmem = (uint32_t *)payload;
switch (opcode) {
case ASM_DATA_EVENT_WATERMARK:
pr_debug("%s: Watermark level = 0x%08x\n", __func__, *ptrmem);
break;
case APR_BASIC_RSP_RESULT:
pr_debug("%s: Payload = [0x%x]stat[0x%x]\n",
__func__, payload[0], payload[1]);
switch (payload[0]) {
case ASM_SESSION_CMD_RUN_V2:
case ASM_SESSION_CMD_PAUSE:
case ASM_STREAM_CMD_FLUSH:
break;
default:
break;
}
break;
default:
pr_debug("Not Supported Event opcode[0x%x]\n", opcode);
break;
}
}
static int msm_pcm_open(struct snd_pcm_substream *substream)
{
struct snd_pcm_runtime *runtime = substream->runtime;
struct msm_audio *prtd;
int ret = 0;
prtd = kzalloc(sizeof(struct msm_audio), GFP_KERNEL);
if (prtd == NULL)
return -ENOMEM;
prtd->substream = substream;
if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
runtime->hw = msm_pcm_hardware_playback;
else
runtime->hw = msm_pcm_hardware_capture;
ret = snd_pcm_hw_constraint_list(runtime, 0,
SNDRV_PCM_HW_PARAM_RATE,
&constraints_sample_rates);
if (ret)
pr_info("snd_pcm_hw_constraint_list failed\n");
ret = snd_pcm_hw_constraint_integer(runtime,
SNDRV_PCM_HW_PARAM_PERIODS);
if (ret)
pr_info("snd_pcm_hw_constraint_integer failed\n");
if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
ret = snd_pcm_hw_constraint_minmax(runtime,
SNDRV_PCM_HW_PARAM_BUFFER_BYTES,
SIO_PLAYBACK_MIN_BYTES,
SIO_PLAYBACK_MAX_BYTES);
if (ret) {
pr_info("%s: P buffer bytes minmax constraint ret %d\n",
__func__, ret);
}
} else if (substream->stream == SNDRV_PCM_STREAM_CAPTURE) {
ret = snd_pcm_hw_constraint_minmax(runtime,
SNDRV_PCM_HW_PARAM_BUFFER_BYTES,
SIO_CAPTURE_MIN_BYTES,
SIO_CAPTURE_MAX_BYTES);
if (ret) {
pr_info("%s: C buffer bytes minmax constraint ret %d\n",
__func__, ret);
}
}
ret = snd_pcm_hw_constraint_step(runtime, 0,
SNDRV_PCM_HW_PARAM_PERIOD_BYTES, 32);
if (ret) {
pr_err("%s: Constraint for period bytes step ret = %d\n",
__func__, ret);
}
ret = snd_pcm_hw_constraint_step(runtime, 0,
SNDRV_PCM_HW_PARAM_BUFFER_BYTES, 32);
if (ret) {
pr_err("%s: Constraint for buffer bytes step ret = %d\n",
__func__, ret);
}
prtd->audio_client = q6asm_audio_client_alloc(
(app_cb)event_handler, prtd);
if (!prtd->audio_client) {
pr_err("%s: client alloc failed\n", __func__);
ret = -ENOMEM;
goto fail_cmd;
}
prtd->dsp_cnt = 0;
prtd->set_channel_map = false;
runtime->private_data = prtd;
return 0;
fail_cmd:
kfree(prtd);
return ret;
}
static int msm_pcm_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 msm_audio *prtd = runtime->private_data;
struct msm_plat_data *pdata;
struct snd_dma_buffer *dma_buf = &substream->dma_buffer;
struct audio_buffer *buf;
struct shared_io_config config;
uint16_t sample_word_size;
uint16_t bits_per_sample;
int ret;
int dir = (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) ? IN : OUT;
unsigned long topology;
int perf_mode;
pdata = (struct msm_plat_data *)
dev_get_drvdata(soc_prtd->platform->dev);
if (!pdata) {
ret = -EINVAL;
pr_err("%s: platform data not populated ret: %d\n", __func__,
ret);
return ret;
}
topology = msm_pcm_fe_topology[soc_prtd->dai_link->id];
if (!strcmp(msm_pcm_fe_topology_text[topology], "ULL_PP"))
perf_mode = ULL_POST_PROCESSING_PCM_MODE;
else if (!strcmp(msm_pcm_fe_topology_text[topology], "ULL"))
perf_mode = ULTRA_LOW_LATENCY_PCM_MODE;
else if (!strcmp(msm_pcm_fe_topology_text[topology], "LL"))
perf_mode = LOW_LATENCY_PCM_MODE;
else
/* use the default from the device tree */
perf_mode = pdata->perf_mode;
/* need to set LOW_LATENCY_PCM_MODE for capture since
* push mode does not support ULL
*/
prtd->audio_client->perf_mode = (dir == IN) ?
perf_mode :
LOW_LATENCY_PCM_MODE;
/* rate and channels are sent to audio driver */
prtd->samp_rate = params_rate(params);
prtd->channel_mode = params_channels(params);
if (prtd->enabled)
return 0;
switch (runtime->format) {
case SNDRV_PCM_FORMAT_S24_LE:
bits_per_sample = 24;
sample_word_size = 32;
break;
case SNDRV_PCM_FORMAT_S24_3LE:
bits_per_sample = 24;
sample_word_size = 24;
break;
case SNDRV_PCM_FORMAT_S16_LE:
default:
bits_per_sample = 16;
sample_word_size = 16;
break;
}
config.format = FORMAT_LINEAR_PCM;
config.bits_per_sample = bits_per_sample;
config.rate = params_rate(params);
config.channels = params_channels(params);
config.sample_word_size = sample_word_size;
config.bufsz = params_buffer_bytes(params) / params_periods(params);
config.bufcnt = params_periods(params);
ret = q6asm_open_shared_io(prtd->audio_client, &config, dir);
if (ret) {
pr_err("%s: q6asm_open_write_shared_io failed ret: %d\n",
__func__, ret);
return ret;
}
prtd->pcm_size = params_buffer_bytes(params);
prtd->pcm_count = params_buffer_bytes(params);
prtd->pcm_irq_pos = 0;
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->data;
dma_buf->addr = buf->phys;
dma_buf->bytes = prtd->pcm_size;
snd_pcm_set_runtime_buffer(substream, &substream->dma_buffer);
pr_debug("%s: session ID %d, perf %d\n", __func__,
prtd->audio_client->session,
prtd->audio_client->perf_mode);
prtd->session_id = prtd->audio_client->session;
pr_debug("msm_pcm_routing_reg_phy_stream w/ id %d\n",
soc_prtd->dai_link->id);
ret = msm_pcm_routing_reg_phy_stream(soc_prtd->dai_link->id,
prtd->audio_client->perf_mode,
prtd->session_id, substream->stream);
if (ret) {
pr_err("%s: stream reg failed ret:%d\n", __func__, ret);
return ret;
}
atomic_set(&prtd->out_count, runtime->periods);
prtd->enabled = 1;
prtd->cmd_pending = 0;
prtd->cmd_interrupt = 0;
return 0;
}
static int msm_pcm_trigger(struct snd_pcm_substream *substream, int cmd)
{
int ret = 0;
struct snd_pcm_runtime *runtime = substream->runtime;
struct msm_audio *prtd = runtime->private_data;
int dir = (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) ? 0 : 1;
struct audio_buffer *buf;
switch (cmd) {
case SNDRV_PCM_TRIGGER_START:
case SNDRV_PCM_TRIGGER_RESUME:
case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
pr_debug("%s: %s Trigger start\n", __func__,
dir == 0 ? "P" : "C");
ret = q6asm_run(prtd->audio_client, 0, 0, 0);
if (ret)
break;
atomic_set(&prtd->start, 1);
break;
case SNDRV_PCM_TRIGGER_STOP:
pr_debug("%s: SNDRV_PCM_TRIGGER_STOP\n", __func__);
atomic_set(&prtd->start, 0);
q6asm_cmd(prtd->audio_client, CMD_PAUSE);
q6asm_cmd(prtd->audio_client, CMD_FLUSH);
buf = q6asm_shared_io_buf(prtd->audio_client, dir);
if (buf == NULL) {
pr_err("%s: shared IO buffer is null\n", __func__);
ret = -EINVAL;
break;
}
memset(buf->data, 0, buf->actual_size);
break;
case SNDRV_PCM_TRIGGER_SUSPEND:
case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
pr_debug("%s: SNDRV_PCM_TRIGGER_PAUSE\n", __func__);
ret = q6asm_cmd_nowait(prtd->audio_client, CMD_PAUSE);
atomic_set(&prtd->start, 0);
break;
default:
ret = -EINVAL;
break;
}
return ret;
}
static int msm_pcm_mmap_fd(struct snd_pcm_substream *substream,
struct snd_pcm_mmap_fd *mmap_fd)
{
struct msm_audio *prtd;
struct audio_port_data *apd;
struct audio_buffer *ab;
int dir = -1;
if (!substream->runtime) {
pr_err("%s substream runtime not found\n", __func__);
return -EFAULT;
}
prtd = substream->runtime->private_data;
if (!prtd || !prtd->audio_client || !prtd->mmap_flag) {
pr_err("%s no audio client or not an mmap session\n", __func__);
return -EINVAL;
}
if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
dir = IN;
else
dir = OUT;
apd = prtd->audio_client->port;
ab = &(apd[dir].buf[0]);
mmap_fd->fd = ion_share_dma_buf_fd(ab->client, ab->handle);
if (mmap_fd->fd >= 0) {
mmap_fd->dir = dir;
mmap_fd->actual_size = ab->actual_size;
mmap_fd->size = ab->size;
}
return mmap_fd->fd < 0 ? -EFAULT : 0;
}
static int msm_pcm_ioctl(struct snd_pcm_substream *substream,
unsigned int cmd, void *arg)
{
struct snd_pcm_runtime *runtime = substream->runtime;
struct msm_audio *prtd = runtime->private_data;
int dir = (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) ? 0 : 1;
struct audio_buffer *buf;
switch (cmd) {
case SNDRV_PCM_IOCTL1_RESET:
pr_debug("%s: %s SNDRV_PCM_IOCTL1_RESET\n", __func__,
dir == 0 ? "P" : "C");
buf = q6asm_shared_io_buf(prtd->audio_client, dir);
if (buf && buf->data)
memset(buf->data, 0, buf->actual_size);
break;
default:
break;
}
return snd_pcm_lib_ioctl(substream, cmd, arg);
}
#ifdef CONFIG_COMPAT
static int msm_pcm_compat_ioctl(struct snd_pcm_substream *substream,
unsigned int cmd, void *arg)
{
/* we only handle RESET which is common for both modes */
return msm_pcm_ioctl(substream, cmd, arg);
}
#endif
static snd_pcm_uframes_t msm_pcm_pointer(struct snd_pcm_substream *substream)
{
struct snd_pcm_runtime *runtime = substream->runtime;
uint32_t read_index, wall_clk_msw, wall_clk_lsw;
/*these are offsets, unlike ASoC's full values*/
snd_pcm_sframes_t hw_ptr;
snd_pcm_sframes_t period_size;
int ret;
int retries = 10;
struct msm_audio *prtd = runtime->private_data;
period_size = runtime->period_size;
do {
ret = q6asm_get_shared_pos(prtd->audio_client,
&read_index, &wall_clk_msw,
&wall_clk_lsw);
} while (ret == -EAGAIN && --retries);
if (ret || !period_size) {
pr_err("get_shared_pos error or zero period size\n");
return 0;
}
hw_ptr = bytes_to_frames(substream->runtime,
read_index);
if (runtime->control->appl_ptr == 0) {
pr_debug("ptr(%s): appl(0), hw = %lu read_index = %u\n",
prtd->substream->stream == SNDRV_PCM_STREAM_PLAYBACK ?
"P" : "C",
hw_ptr, read_index);
}
return (hw_ptr/period_size) * period_size;
}
static int msm_pcm_copy(struct snd_pcm_substream *substream, int a,
snd_pcm_uframes_t hwoff, void __user *buf, snd_pcm_uframes_t frames)
{
return -EINVAL;
}
static int msm_pcm_mmap(struct snd_pcm_substream *substream,
struct vm_area_struct *vma)
{
struct snd_pcm_runtime *runtime = substream->runtime;
struct msm_audio *prtd = runtime->private_data;
struct audio_client *ac = prtd->audio_client;
struct audio_port_data *apd = ac->port;
struct audio_buffer *ab;
int dir = -1;
int ret;
pr_debug("%s: mmap begin\n", __func__);
prtd->mmap_flag = 1;
if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
dir = IN;
else
dir = OUT;
ab = &(apd[dir].buf[0]);
ret = msm_audio_ion_mmap(ab, vma);
if (ret)
prtd->mmap_flag = 0;
return ret;
}
static int msm_pcm_prepare(struct snd_pcm_substream *substream)
{
struct snd_pcm_runtime *runtime = substream->runtime;
struct msm_audio *prtd = runtime->private_data;
if (!prtd || !prtd->mmap_flag)
return -EIO;
return 0;
}
static int msm_pcm_close(struct snd_pcm_substream *substream)
{
struct snd_pcm_runtime *runtime = substream->runtime;
struct snd_soc_pcm_runtime *soc_prtd = substream->private_data;
struct msm_audio *prtd = runtime->private_data;
struct audio_client *ac = prtd->audio_client;
uint32_t timeout;
int dir = 0;
int ret = 0;
if (ac) {
if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
dir = IN;
else if (substream->stream == SNDRV_PCM_STREAM_CAPTURE)
dir = OUT;
/* determine timeout length */
if (runtime->frame_bits == 0 || runtime->rate == 0) {
timeout = CMD_EOS_MIN_TIMEOUT_LENGTH;
} else {
timeout = (runtime->period_size *
CMD_EOS_TIMEOUT_MULTIPLIER) /
((runtime->frame_bits / 8) *
runtime->rate);
if (timeout < CMD_EOS_MIN_TIMEOUT_LENGTH)
timeout = CMD_EOS_MIN_TIMEOUT_LENGTH;
}
q6asm_cmd(ac, CMD_CLOSE);
ret = q6asm_shared_io_free(ac, dir);
if (ret) {
pr_err("%s: Failed to close pull mode, ret %d\n",
__func__, ret);
}
q6asm_audio_client_free(ac);
}
msm_pcm_routing_dereg_phy_stream(soc_prtd->dai_link->id,
dir == IN ?
SNDRV_PCM_STREAM_PLAYBACK :
SNDRV_PCM_STREAM_CAPTURE);
kfree(prtd);
runtime->private_data = NULL;
return 0;
}
static int msm_pcm_set_volume(struct msm_audio *prtd, uint32_t volume)
{
int rc = 0;
if (prtd && prtd->audio_client) {
pr_debug("%s: channels %d volume 0x%x\n", __func__,
prtd->channel_mode, volume);
rc = q6asm_set_volume(prtd->audio_client, volume);
if (rc < 0) {
pr_err("%s: Send Volume command failed rc=%d\n",
__func__, rc);
}
}
return rc;
}
static int msm_pcm_volume_ctl_get(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
struct snd_pcm_volume *vol = snd_kcontrol_chip(kcontrol);
struct snd_pcm_substream *substream =
vol->pcm->streams[SNDRV_PCM_STREAM_PLAYBACK].substream;
struct msm_audio *prtd;
pr_debug("%s\n", __func__);
if (!substream) {
pr_err("%s substream not found\n", __func__);
return -ENODEV;
}
if (!substream->runtime) {
pr_err("%s substream runtime not found\n", __func__);
return 0;
}
prtd = substream->runtime->private_data;
if (prtd)
ucontrol->value.integer.value[0] = prtd->volume;
return 0;
}
static int msm_pcm_volume_ctl_put(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
int rc = 0;
struct snd_pcm_volume *vol = snd_kcontrol_chip(kcontrol);
struct snd_pcm_substream *substream =
vol->pcm->streams[SNDRV_PCM_STREAM_PLAYBACK].substream;
struct msm_audio *prtd;
int volume = ucontrol->value.integer.value[0];
pr_debug("%s: volume : 0x%x\n", __func__, volume);
if (!substream) {
pr_err("%s substream not found\n", __func__);
return -ENODEV;
}
if (!substream->runtime) {
pr_err("%s substream runtime not found\n", __func__);
return 0;
}
prtd = substream->runtime->private_data;
if (prtd) {
rc = msm_pcm_set_volume(prtd, volume);
prtd->volume = volume;
}
return rc;
}
static int msm_pcm_add_volume_control(struct snd_soc_pcm_runtime *rtd)
{
int ret = 0;
struct snd_pcm *pcm = rtd->pcm;
struct snd_pcm_volume *volume_info;
struct snd_kcontrol *kctl;
dev_dbg(rtd->dev, "%s, Volume control add\n", __func__);
ret = snd_pcm_add_volume_ctls(pcm, SNDRV_PCM_STREAM_PLAYBACK,
NULL, 1, rtd->dai_link->id,
&volume_info);
if (ret < 0) {
pr_err("%s volume control failed ret %d\n", __func__, ret);
return ret;
}
kctl = volume_info->kctl;
kctl->put = msm_pcm_volume_ctl_put;
kctl->get = msm_pcm_volume_ctl_get;
kctl->tlv.p = msm_pcm_vol_gain;
return 0;
}
static int msm_pcm_chmap_ctl_put(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
int i;
struct snd_pcm_chmap *info = snd_kcontrol_chip(kcontrol);
unsigned int idx = snd_ctl_get_ioffidx(kcontrol, &ucontrol->id);
struct snd_pcm_substream *substream;
struct msm_audio *prtd;
pr_debug("%s", __func__);
substream = snd_pcm_chmap_substream(info, idx);
if (!substream)
return -ENODEV;
if (!substream->runtime)
return 0;
prtd = substream->runtime->private_data;
if (prtd) {
prtd->set_channel_map = true;
for (i = 0; i < PCM_FORMAT_MAX_NUM_CHANNEL; i++)
prtd->channel_map[i] =
(char)(ucontrol->value.integer.value[i]);
}
return 0;
}
static int msm_pcm_chmap_ctl_get(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
int i;
struct snd_pcm_chmap *info = snd_kcontrol_chip(kcontrol);
unsigned int idx = snd_ctl_get_ioffidx(kcontrol, &ucontrol->id);
struct snd_pcm_substream *substream;
struct msm_audio *prtd;
pr_debug("%s", __func__);
substream = snd_pcm_chmap_substream(info, idx);
if (!substream)
return -ENODEV;
memset(ucontrol->value.integer.value, 0,
sizeof(ucontrol->value.integer.value));
if (!substream->runtime)
return 0; /* no channels set */
prtd = substream->runtime->private_data;
if (prtd && prtd->set_channel_map == true) {
for (i = 0; i < PCM_FORMAT_MAX_NUM_CHANNEL; i++)
ucontrol->value.integer.value[i] =
(int)prtd->channel_map[i];
} else {
for (i = 0; i < PCM_FORMAT_MAX_NUM_CHANNEL; i++)
ucontrol->value.integer.value[i] = 0;
}
return 0;
}
static int msm_pcm_add_chmap_control(struct snd_soc_pcm_runtime *rtd)
{
struct snd_pcm *pcm = rtd->pcm;
struct snd_pcm_chmap *chmap_info;
struct snd_kcontrol *kctl;
char device_num[12];
int i, ret;
pr_debug("%s, Channel map cntrl add\n", __func__);
ret = snd_pcm_add_chmap_ctls(pcm, SNDRV_PCM_STREAM_PLAYBACK,
snd_pcm_std_chmaps,
PCM_FORMAT_MAX_NUM_CHANNEL, 0,
&chmap_info);
if (ret)
return ret;
kctl = chmap_info->kctl;
for (i = 0; i < kctl->count; i++)
kctl->vd[i].access |= SNDRV_CTL_ELEM_ACCESS_WRITE;
snprintf(device_num, sizeof(device_num), "%d", pcm->device);
strlcat(kctl->id.name, device_num, sizeof(kctl->id.name));
pr_debug("%s, Overwriting channel map control name to: %s",
__func__, kctl->id.name);
kctl->put = msm_pcm_chmap_ctl_put;
kctl->get = msm_pcm_chmap_ctl_get;
return 0;
}
static int msm_pcm_fe_topology_info(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_info *uinfo)
{
const struct soc_enum *e = &msm_pcm_fe_topology_enum[0];
return snd_ctl_enum_info(uinfo, 1, e->items, e->texts);
}
static int msm_pcm_fe_topology_get(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
unsigned long fe_id = kcontrol->private_value;
if (fe_id >= MSM_FRONTEND_DAI_MAX) {
pr_err("%s Received out of bound fe_id %lu\n", __func__, fe_id);
return -EINVAL;
}
pr_debug("%s: %lu topology %s\n", __func__, fe_id,
msm_pcm_fe_topology_text[msm_pcm_fe_topology[fe_id]]);
ucontrol->value.enumerated.item[0] = msm_pcm_fe_topology[fe_id];
return 0;
}
static int msm_pcm_fe_topology_put(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
unsigned long fe_id = kcontrol->private_value;
unsigned int item;
if (fe_id >= MSM_FRONTEND_DAI_MAX) {
pr_err("%s Received out of bound fe_id %lu\n", __func__, fe_id);
return -EINVAL;
}
item = ucontrol->value.enumerated.item[0];
if (item >= ARRAY_SIZE(msm_pcm_fe_topology_text)) {
pr_err("%s Received out of bound topology %lu\n", __func__,
fe_id);
return -EINVAL;
}
pr_debug("%s: %lu new topology %s\n", __func__, fe_id,
msm_pcm_fe_topology_text[item]);
msm_pcm_fe_topology[fe_id] = item;
return 0;
}
static int msm_pcm_add_fe_topology_control(struct snd_soc_pcm_runtime *rtd)
{
const char *mixer_ctl_name = "PCM_Dev";
const char *deviceNo = "NN";
const char *topo_text = "Topology";
char *mixer_str = NULL;
int ctl_len;
int ret;
struct snd_kcontrol_new topology_control[1] = {
{
.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
.access = SNDRV_CTL_ELEM_ACCESS_READWRITE,
.name = "?",
.info = msm_pcm_fe_topology_info,
.get = msm_pcm_fe_topology_get,
.put = msm_pcm_fe_topology_put,
.private_value = 0,
},
};
ctl_len = strlen(mixer_ctl_name) + 1 + strlen(deviceNo) + 1 +
strlen(topo_text) + 1;
mixer_str = kzalloc(ctl_len, GFP_KERNEL);
if (!mixer_str)
return -ENOMEM;
snprintf(mixer_str, ctl_len, "%s %d %s", mixer_ctl_name,
rtd->pcm->device, topo_text);
topology_control[0].name = mixer_str;
topology_control[0].private_value = rtd->dai_link->id;
ret = snd_soc_add_platform_controls(rtd->platform, topology_control,
ARRAY_SIZE(topology_control));
msm_pcm_fe_topology[rtd->dai_link->id] = 0;
kfree(mixer_str);
return ret;
}
static int msm_pcm_playback_app_type_cfg_ctl_put(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
u64 fe_id = kcontrol->private_value;
int session_type = SESSION_TYPE_RX;
int be_id = ucontrol->value.integer.value[3];
struct msm_pcm_stream_app_type_cfg cfg_data = {0, 0, 48000};
int ret = 0;
cfg_data.app_type = ucontrol->value.integer.value[0];
cfg_data.acdb_dev_id = ucontrol->value.integer.value[1];
if (ucontrol->value.integer.value[2] != 0)
cfg_data.sample_rate = ucontrol->value.integer.value[2];
pr_debug("%s: fe_id- %llu session_type- %d be_id- %d app_type- %d acdb_dev_id- %d sample_rate- %d\n",
__func__, fe_id, session_type, be_id,
cfg_data.app_type, cfg_data.acdb_dev_id, cfg_data.sample_rate);
ret = msm_pcm_routing_reg_stream_app_type_cfg(fe_id, session_type,
be_id, &cfg_data);
if (ret < 0)
pr_err("%s: msm_pcm_routing_reg_stream_app_type_cfg failed returned %d\n",
__func__, ret);
return ret;
}
static int msm_pcm_playback_app_type_cfg_ctl_get(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
u64 fe_id = kcontrol->private_value;
int session_type = SESSION_TYPE_RX;
int be_id = 0;
struct msm_pcm_stream_app_type_cfg cfg_data = {0};
int ret = 0;
ret = msm_pcm_routing_get_stream_app_type_cfg(fe_id, session_type,
&be_id, &cfg_data);
if (ret < 0) {
pr_err("%s: msm_pcm_routing_get_stream_app_type_cfg failed returned %d\n",
__func__, ret);
goto done;
}
ucontrol->value.integer.value[0] = cfg_data.app_type;
ucontrol->value.integer.value[1] = cfg_data.acdb_dev_id;
ucontrol->value.integer.value[2] = cfg_data.sample_rate;
ucontrol->value.integer.value[3] = be_id;
pr_debug("%s: fedai_id %llu, session_type %d, be_id %d, app_type %d, acdb_dev_id %d, sample_rate %d\n",
__func__, fe_id, session_type, be_id,
cfg_data.app_type, cfg_data.acdb_dev_id, cfg_data.sample_rate);
done:
return ret;
}
static int msm_pcm_capture_app_type_cfg_ctl_put(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
u64 fe_id = kcontrol->private_value;
int session_type = SESSION_TYPE_TX;
int be_id = ucontrol->value.integer.value[3];
struct msm_pcm_stream_app_type_cfg cfg_data = {0, 0, 48000};
int ret = 0;
cfg_data.app_type = ucontrol->value.integer.value[0];
cfg_data.acdb_dev_id = ucontrol->value.integer.value[1];
if (ucontrol->value.integer.value[2] != 0)
cfg_data.sample_rate = ucontrol->value.integer.value[2];
pr_debug("%s: fe_id- %llu session_type- %d be_id- %d app_type- %d acdb_dev_id- %d sample_rate- %d\n",
__func__, fe_id, session_type, be_id,
cfg_data.app_type, cfg_data.acdb_dev_id, cfg_data.sample_rate);
ret = msm_pcm_routing_reg_stream_app_type_cfg(fe_id, session_type,
be_id, &cfg_data);
if (ret < 0)
pr_err("%s: msm_pcm_routing_reg_stream_app_type_cfg failed returned %d\n",
__func__, ret);
return ret;
}
static int msm_pcm_capture_app_type_cfg_ctl_get(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
u64 fe_id = kcontrol->private_value;
int session_type = SESSION_TYPE_TX;
int be_id = 0;
struct msm_pcm_stream_app_type_cfg cfg_data = {0};
int ret = 0;
ret = msm_pcm_routing_get_stream_app_type_cfg(fe_id, session_type,
&be_id, &cfg_data);
if (ret < 0) {
pr_err("%s: msm_pcm_routing_get_stream_app_type_cfg failed returned %d\n",
__func__, ret);
goto done;
}
ucontrol->value.integer.value[0] = cfg_data.app_type;
ucontrol->value.integer.value[1] = cfg_data.acdb_dev_id;
ucontrol->value.integer.value[2] = cfg_data.sample_rate;
ucontrol->value.integer.value[3] = be_id;
pr_debug("%s: fedai_id %llu, session_type %d, be_id %d, app_type %d, acdb_dev_id %d, sample_rate %d\n",
__func__, fe_id, session_type, be_id,
cfg_data.app_type, cfg_data.acdb_dev_id, cfg_data.sample_rate);
done:
return ret;
}
static int msm_pcm_add_app_type_controls(struct snd_soc_pcm_runtime *rtd)
{
struct snd_pcm *pcm = rtd->pcm;
struct snd_pcm_usr *app_type_info;
struct snd_kcontrol *kctl;
const char *playback_mixer_ctl_name = "Audio Stream";
const char *capture_mixer_ctl_name = "Audio Stream Capture";
const char *deviceNo = "NN";
const char *suffix = "App Type Cfg";
int ctl_len, ret = 0;
if (pcm->streams[SNDRV_PCM_STREAM_PLAYBACK].substream) {
ctl_len = strlen(playback_mixer_ctl_name) + 1 +
strlen(deviceNo) + 1 +
strlen(suffix) + 1;
pr_debug("%s: Playback app type cntrl add\n", __func__);
ret = snd_pcm_add_usr_ctls(pcm, SNDRV_PCM_STREAM_PLAYBACK,
NULL, 1, ctl_len, rtd->dai_link->id,
&app_type_info);
if (ret < 0) {
pr_err("%s: playback app type cntrl add failed, err: %d\n",
__func__, ret);
return ret;
}
kctl = app_type_info->kctl;
snprintf(kctl->id.name, ctl_len, "%s %d %s",
playback_mixer_ctl_name, rtd->pcm->device, suffix);
kctl->put = msm_pcm_playback_app_type_cfg_ctl_put;
kctl->get = msm_pcm_playback_app_type_cfg_ctl_get;
}
if (pcm->streams[SNDRV_PCM_STREAM_CAPTURE].substream) {
ctl_len = strlen(capture_mixer_ctl_name) + 1 +
strlen(deviceNo) + 1 + strlen(suffix) + 1;
pr_debug("%s: Capture app type cntrl add\n", __func__);
ret = snd_pcm_add_usr_ctls(pcm, SNDRV_PCM_STREAM_CAPTURE,
NULL, 1, ctl_len, rtd->dai_link->id,
&app_type_info);
if (ret < 0) {
pr_err("%s: capture app type cntrl add failed, err: %d\n",
__func__, ret);
return ret;
}
kctl = app_type_info->kctl;
snprintf(kctl->id.name, ctl_len, "%s %d %s",
capture_mixer_ctl_name, rtd->pcm->device, suffix);
kctl->put = msm_pcm_capture_app_type_cfg_ctl_put;
kctl->get = msm_pcm_capture_app_type_cfg_ctl_get;
}
return 0;
}
static int msm_pcm_hwdep_ioctl(struct snd_hwdep *hw, struct file *file,
unsigned int cmd, unsigned long arg)
{
int ret = 0;
struct snd_pcm *pcm = hw->private_data;
struct snd_pcm_mmap_fd __user *_mmap_fd = NULL;
struct snd_pcm_mmap_fd mmap_fd;
struct snd_pcm_substream *substream = NULL;
int32_t dir = -1;
switch (cmd) {
case SNDRV_PCM_IOCTL_MMAP_DATA_FD:
_mmap_fd = (struct snd_pcm_mmap_fd __user *)arg;
if (get_user(dir, (int32_t __user *)&(_mmap_fd->dir))) {
pr_err("%s: error copying mmap_fd from user\n",
__func__);
ret = -EFAULT;
break;
}
if (dir != OUT && dir != IN) {
pr_err("%s invalid stream dir\n", __func__);
ret = -EINVAL;
break;
}
substream = pcm->streams[dir].substream;
if (!substream) {
pr_err("%s substream not found\n", __func__);
ret = -ENODEV;
break;
}
pr_debug("%s : %s MMAP Data fd\n", __func__,
dir == 0 ? "P" : "C");
if (msm_pcm_mmap_fd(substream, &mmap_fd) < 0) {
pr_err("%s: error getting fd\n",
__func__);
ret = -EFAULT;
break;
}
if (put_user(mmap_fd.fd, &_mmap_fd->fd) ||
put_user(mmap_fd.size, &_mmap_fd->size) ||
put_user(mmap_fd.actual_size, &_mmap_fd->actual_size)) {
pr_err("%s: error copying fd\n", __func__);
return -EFAULT;
}
break;
default:
ret = -EINVAL;
break;
}
return ret;
}
#ifdef CONFIG_COMPAT
static int msm_pcm_hwdep_compat_ioctl(struct snd_hwdep *hw,
struct file *file,
unsigned int cmd,
unsigned long arg)
{
/* we only support mmap fd. Handling is common in both modes */
return msm_pcm_hwdep_ioctl(hw, file, cmd, arg);
}
#else
static int msm_pcm_hwdep_compat_ioctl(struct snd_hwdep *hw,
struct file *file,
unsigned int cmd,
unsigned long arg)
{
return -EINVAL;
}
#endif
static int msm_pcm_add_hwdep_dev(struct snd_soc_pcm_runtime *runtime)
{
struct snd_hwdep *hwdep;
int rc;
char id[] = "NOIRQ_NN";
snprintf(id, sizeof(id), "NOIRQ_%d", runtime->pcm->device);
pr_debug("%s: pcm dev %d\n", __func__, runtime->pcm->device);
rc = snd_hwdep_new(runtime->card->snd_card,
&id[0],
HWDEP_FE_BASE + runtime->pcm->device,
&hwdep);
if (!hwdep || rc < 0) {
pr_err("%s: hwdep intf failed to create %s - hwdep\n", __func__,
id);
return rc;
}
hwdep->iface = SNDRV_HWDEP_IFACE_AUDIO_BE; /* for lack of a FE iface */
hwdep->private_data = runtime->pcm; /* of type struct snd_pcm */
hwdep->ops.ioctl = msm_pcm_hwdep_ioctl;
hwdep->ops.ioctl_compat = msm_pcm_hwdep_compat_ioctl;
return 0;
}
static int msm_asoc_pcm_new(struct snd_soc_pcm_runtime *rtd)
{
struct snd_card *card = rtd->card->snd_card;
struct snd_pcm *pcm = rtd->pcm;
int ret;
pr_debug("%s , register new control\n", __func__);
if (!card->dev->coherent_dma_mask)
card->dev->coherent_dma_mask = DMA_BIT_MASK(32);
ret = msm_pcm_add_chmap_control(rtd);
if (ret) {
pr_err("%s failed to add chmap cntls\n", __func__);
goto exit;
}
ret = msm_pcm_add_volume_control(rtd);
if (ret) {
pr_err("%s: Could not add pcm Volume Control %d\n",
__func__, ret);
}
ret = msm_pcm_add_fe_topology_control(rtd);
if (ret) {
pr_err("%s: Could not add pcm topology control %d\n",
__func__, ret);
}
ret = msm_pcm_add_app_type_controls(rtd);
if (ret) {
pr_err("%s: Could not add app type controls failed %d\n",
__func__, ret);
}
ret = msm_pcm_add_hwdep_dev(rtd);
if (ret)
pr_err("%s: Could not add hw dep node\n", __func__);
pcm->nonatomic = true;
exit:
return ret;
}
static const struct snd_pcm_ops msm_pcm_ops = {
.open = msm_pcm_open,
.prepare = msm_pcm_prepare,
.copy = msm_pcm_copy,
.hw_params = msm_pcm_hw_params,
.ioctl = msm_pcm_ioctl,
#ifdef CONFIG_COMPAT
.compat_ioctl = msm_pcm_compat_ioctl,
#endif
.trigger = msm_pcm_trigger,
.pointer = msm_pcm_pointer,
.mmap = msm_pcm_mmap,
.close = msm_pcm_close,
};
static struct snd_soc_platform_driver msm_soc_platform = {
.ops = &msm_pcm_ops,
.pcm_new = msm_asoc_pcm_new,
};
static int msm_pcm_probe(struct platform_device *pdev)
{
int rc;
struct msm_plat_data *pdata;
const char *latency_level;
int perf_mode = LOW_LATENCY_PCM_MODE;
dev_dbg(&pdev->dev, "Pull mode driver probe\n");
if (of_property_read_bool(pdev->dev.of_node,
"qcom,msm-pcm-low-latency")) {
rc = of_property_read_string(pdev->dev.of_node,
"qcom,latency-level", &latency_level);
if (!rc) {
if (!strcmp(latency_level, "ultra"))
perf_mode = ULTRA_LOW_LATENCY_PCM_MODE;
else if (!strcmp(latency_level, "ull-pp"))
perf_mode = ULL_POST_PROCESSING_PCM_MODE;
}
}
pdata = devm_kzalloc(&pdev->dev,
sizeof(struct msm_plat_data), GFP_KERNEL);
if (!pdata)
return -ENOMEM;
pdata->perf_mode = perf_mode;
dev_set_drvdata(&pdev->dev, pdata);
dev_dbg(&pdev->dev, "%s: dev name %s\n",
__func__, dev_name(&pdev->dev));
dev_dbg(&pdev->dev, "Pull mode driver register\n");
rc = snd_soc_register_platform(&pdev->dev,
&msm_soc_platform);
if (rc)
dev_err(&pdev->dev, "Failed to register pull mode driver\n");
return rc;
}
static int msm_pcm_remove(struct platform_device *pdev)
{
struct msm_plat_data *pdata;
dev_dbg(&pdev->dev, "Pull mode remove\n");
pdata = dev_get_drvdata(&pdev->dev);
devm_kfree(&pdev->dev, pdata);
snd_soc_unregister_platform(&pdev->dev);
return 0;
}
static const struct of_device_id msm_pcm_noirq_dt_match[] = {
{.compatible = "qcom,msm-pcm-dsp-noirq"},
{}
};
MODULE_DEVICE_TABLE(of, msm_pcm_noirq_dt_match);
static struct platform_driver msm_pcm_driver_noirq = {
.driver = {
.name = "msm-pcm-dsp-noirq",
.owner = THIS_MODULE,
.of_match_table = msm_pcm_noirq_dt_match,
},
.probe = msm_pcm_probe,
.remove = msm_pcm_remove,
};
int __init msm_pcm_noirq_init(void)
{
return platform_driver_register(&msm_pcm_driver_noirq);
}
void __exit msm_pcm_noirq_exit(void)
{
platform_driver_unregister(&msm_pcm_driver_noirq);
}
MODULE_DESCRIPTION("PCM NOIRQ module platform driver");
MODULE_LICENSE("GPL v2");