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linux-sg2042/sound/soc/sh/rcar/core.c

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/*
* Renesas R-Car SRU/SCU/SSIU/SSI support
*
* Copyright (C) 2013 Renesas Solutions Corp.
* Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
*
* Based on fsi.c
* Kuninori Morimoto <morimoto.kuninori@renesas.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
/*
* Renesas R-Car sound device structure
*
* Gen1
*
* SRU : Sound Routing Unit
* - SRC : Sampling Rate Converter
* - CMD
* - CTU : Channel Count Conversion Unit
* - MIX : Mixer
* - DVC : Digital Volume and Mute Function
* - SSI : Serial Sound Interface
*
* Gen2
*
* SCU : Sampling Rate Converter Unit
* - SRC : Sampling Rate Converter
* - CMD
* - CTU : Channel Count Conversion Unit
* - MIX : Mixer
* - DVC : Digital Volume and Mute Function
* SSIU : Serial Sound Interface Unit
* - SSI : Serial Sound Interface
*/
/*
* driver data Image
*
* rsnd_priv
* |
* | ** this depends on Gen1/Gen2
* |
* +- gen
* |
* | ** these depend on data path
* | ** gen and platform data control it
* |
* +- rdai[0]
* | | sru ssiu ssi
* | +- playback -> [mod] -> [mod] -> [mod] -> ...
* | |
* | | sru ssiu ssi
* | +- capture -> [mod] -> [mod] -> [mod] -> ...
* |
* +- rdai[1]
* | | sru ssiu ssi
* | +- playback -> [mod] -> [mod] -> [mod] -> ...
* | |
* | | sru ssiu ssi
* | +- capture -> [mod] -> [mod] -> [mod] -> ...
* ...
* |
* | ** these control ssi
* |
* +- ssi
* | |
* | +- ssi[0]
* | +- ssi[1]
* | +- ssi[2]
* | ...
* |
* | ** these control scu
* |
* +- scu
* |
* +- scu[0]
* +- scu[1]
* +- scu[2]
* ...
*
*
* for_each_rsnd_dai(xx, priv, xx)
* rdai[0] => rdai[1] => rdai[2] => ...
*
* for_each_rsnd_mod(xx, rdai, xx)
* [mod] => [mod] => [mod] => ...
*
* rsnd_dai_call(xxx, fn )
* [mod]->fn() -> [mod]->fn() -> [mod]->fn()...
*
*/
#include <linux/pm_runtime.h>
#include <linux/shdma-base.h>
#include "rsnd.h"
#define RSND_RATES SNDRV_PCM_RATE_8000_96000
#define RSND_FMTS (SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_S16_LE)
/*
* rsnd_platform functions
*/
#define rsnd_platform_call(priv, dai, func, param...) \
(!(priv->info->func) ? 0 : \
priv->info->func(param))
#define rsnd_is_enable_path(io, name) \
((io)->info ? (io)->info->name : NULL)
#define rsnd_info_id(priv, io, name) \
((io)->info->name - priv->info->name##_info)
/*
* rsnd_mod functions
*/
char *rsnd_mod_name(struct rsnd_mod *mod)
{
if (!mod || !mod->ops)
return "unknown";
return mod->ops->name;
}
void rsnd_mod_init(struct rsnd_priv *priv,
struct rsnd_mod *mod,
struct rsnd_mod_ops *ops,
enum rsnd_mod_type type,
int id)
{
mod->priv = priv;
mod->id = id;
mod->ops = ops;
mod->type = type;
}
/*
* rsnd_dma functions
*/
static void __rsnd_dma_start(struct rsnd_dma *dma);
static void rsnd_dma_continue(struct rsnd_dma *dma)
{
/* push next A or B plane */
dma->submit_loop = 1;
schedule_work(&dma->work);
}
void rsnd_dma_start(struct rsnd_dma *dma)
{
/* push both A and B plane*/
dma->offset = 0;
dma->submit_loop = 2;
__rsnd_dma_start(dma);
}
void rsnd_dma_stop(struct rsnd_dma *dma)
{
dma->submit_loop = 0;
cancel_work_sync(&dma->work);
dmaengine_terminate_all(dma->chan);
}
static void rsnd_dma_complete(void *data)
{
struct rsnd_dma *dma = (struct rsnd_dma *)data;
struct rsnd_mod *mod = rsnd_dma_to_mod(dma);
struct rsnd_priv *priv = rsnd_mod_to_priv(rsnd_dma_to_mod(dma));
struct rsnd_dai_stream *io = rsnd_mod_to_io(mod);
unsigned long flags;
rsnd_lock(priv, flags);
/*
* Renesas sound Gen1 needs 1 DMAC,
* Gen2 needs 2 DMAC.
* In Gen2 case, it are Audio-DMAC, and Audio-DMAC-peri-peri.
* But, Audio-DMAC-peri-peri doesn't have interrupt,
* and this driver is assuming that here.
*
* If Audio-DMAC-peri-peri has interrpt,
* rsnd_dai_pointer_update() will be called twice,
* ant it will breaks io->byte_pos
*/
rsnd_dai_pointer_update(io, io->byte_per_period);
if (dma->submit_loop)
rsnd_dma_continue(dma);
rsnd_unlock(priv, flags);
}
static void __rsnd_dma_start(struct rsnd_dma *dma)
{
struct rsnd_mod *mod = rsnd_dma_to_mod(dma);
struct rsnd_priv *priv = rsnd_mod_to_priv(mod);
struct rsnd_dai_stream *io = rsnd_mod_to_io(mod);
struct snd_pcm_runtime *runtime = rsnd_io_to_runtime(io);
struct device *dev = rsnd_priv_to_dev(priv);
struct dma_async_tx_descriptor *desc;
dma_addr_t buf;
size_t len = io->byte_per_period;
int i;
for (i = 0; i < dma->submit_loop; i++) {
buf = runtime->dma_addr +
rsnd_dai_pointer_offset(io, dma->offset + len);
dma->offset = len;
desc = dmaengine_prep_slave_single(
dma->chan, buf, len, dma->dir,
DMA_PREP_INTERRUPT | DMA_CTRL_ACK);
if (!desc) {
dev_err(dev, "dmaengine_prep_slave_sg() fail\n");
return;
}
desc->callback = rsnd_dma_complete;
desc->callback_param = dma;
if (dmaengine_submit(desc) < 0) {
dev_err(dev, "dmaengine_submit() fail\n");
return;
}
dma_async_issue_pending(dma->chan);
}
}
static void rsnd_dma_do_work(struct work_struct *work)
{
struct rsnd_dma *dma = container_of(work, struct rsnd_dma, work);
__rsnd_dma_start(dma);
}
int rsnd_dma_available(struct rsnd_dma *dma)
{
return !!dma->chan;
}
int rsnd_dma_init(struct rsnd_priv *priv, struct rsnd_dma *dma,
int is_play, int id)
{
struct device *dev = rsnd_priv_to_dev(priv);
struct dma_slave_config cfg;
dma_cap_mask_t mask;
int ret;
if (dma->chan) {
dev_err(dev, "it already has dma channel\n");
return -EIO;
}
dma_cap_zero(mask);
dma_cap_set(DMA_SLAVE, mask);
dma->chan = dma_request_slave_channel_compat(mask, shdma_chan_filter,
(void *)id, dev,
is_play ? "tx" : "rx");
if (!dma->chan) {
dev_err(dev, "can't get dma channel\n");
return -EIO;
}
cfg.slave_id = id;
cfg.dst_addr = 0; /* use default addr when playback */
cfg.src_addr = 0; /* use default addr when capture */
cfg.direction = is_play ? DMA_MEM_TO_DEV : DMA_DEV_TO_MEM;
ret = dmaengine_slave_config(dma->chan, &cfg);
if (ret < 0)
goto rsnd_dma_init_err;
dma->dir = is_play ? DMA_TO_DEVICE : DMA_FROM_DEVICE;
INIT_WORK(&dma->work, rsnd_dma_do_work);
return 0;
rsnd_dma_init_err:
rsnd_dma_quit(priv, dma);
return ret;
}
void rsnd_dma_quit(struct rsnd_priv *priv,
struct rsnd_dma *dma)
{
if (dma->chan)
dma_release_channel(dma->chan);
dma->chan = NULL;
}
/*
* rsnd_dai functions
*/
#define __rsnd_mod_call(mod, func, rdai, io) \
({ \
struct rsnd_priv *priv = rsnd_mod_to_priv(mod); \
struct device *dev = rsnd_priv_to_dev(priv); \
dev_dbg(dev, "%s [%d] %s\n", \
rsnd_mod_name(mod), rsnd_mod_id(mod), #func); \
(mod)->ops->func(mod, rdai, io); \
})
#define rsnd_mod_call(mod, func, rdai, io) \
(!(mod) ? -ENODEV : \
!((mod)->ops->func) ? 0 : \
__rsnd_mod_call(mod, func, (rdai), (io)))
#define rsnd_dai_call(rdai, io, fn) \
({ \
struct rsnd_mod *mod; \
int ret = 0, i; \
for (i = 0; i < RSND_MOD_MAX; i++) { \
mod = (io)->mod[i]; \
if (!mod) \
continue; \
ret = rsnd_mod_call(mod, fn, (rdai), (io)); \
if (ret < 0) \
break; \
} \
ret; \
})
static int rsnd_dai_connect(struct rsnd_mod *mod,
struct rsnd_dai_stream *io)
{
if (!mod)
return -EIO;
if (io->mod[mod->type]) {
struct rsnd_priv *priv = rsnd_mod_to_priv(mod);
struct device *dev = rsnd_priv_to_dev(priv);
dev_err(dev, "%s%d is not empty\n",
rsnd_mod_name(mod),
rsnd_mod_id(mod));
return -EIO;
}
io->mod[mod->type] = mod;
mod->io = io;
return 0;
}
static int rsnd_dai_disconnect(struct rsnd_mod *mod, struct rsnd_dai_stream *io)
{
io->mod[mod->type] = NULL;
mod->io = NULL;
return 0;
}
int rsnd_dai_id(struct rsnd_priv *priv, struct rsnd_dai *rdai)
{
int id = rdai - priv->rdai;
if ((id < 0) || (id >= rsnd_rdai_nr(priv)))
return -EINVAL;
return id;
}
struct rsnd_dai *rsnd_dai_get(struct rsnd_priv *priv, int id)
{
if ((id < 0) || (id >= rsnd_rdai_nr(priv)))
return NULL;
return priv->rdai + id;
}
static struct rsnd_dai *rsnd_dai_to_rdai(struct snd_soc_dai *dai)
{
struct rsnd_priv *priv = snd_soc_dai_get_drvdata(dai);
return rsnd_dai_get(priv, dai->id);
}
int rsnd_dai_is_play(struct rsnd_dai *rdai, struct rsnd_dai_stream *io)
{
return &rdai->playback == io;
}
/*
* rsnd_soc_dai functions
*/
int rsnd_dai_pointer_offset(struct rsnd_dai_stream *io, int additional)
{
struct snd_pcm_substream *substream = io->substream;
struct snd_pcm_runtime *runtime = substream->runtime;
int pos = io->byte_pos + additional;
pos %= (runtime->periods * io->byte_per_period);
return pos;
}
void rsnd_dai_pointer_update(struct rsnd_dai_stream *io, int byte)
{
io->byte_pos += byte;
if (io->byte_pos >= io->next_period_byte) {
struct snd_pcm_substream *substream = io->substream;
struct snd_pcm_runtime *runtime = substream->runtime;
io->period_pos++;
io->next_period_byte += io->byte_per_period;
if (io->period_pos >= runtime->periods) {
io->byte_pos = 0;
io->period_pos = 0;
io->next_period_byte = io->byte_per_period;
}
snd_pcm_period_elapsed(substream);
}
}
static int rsnd_dai_stream_init(struct rsnd_dai_stream *io,
struct snd_pcm_substream *substream)
{
struct snd_pcm_runtime *runtime = substream->runtime;
io->substream = substream;
io->byte_pos = 0;
io->period_pos = 0;
io->byte_per_period = runtime->period_size *
runtime->channels *
samples_to_bytes(runtime, 1);
io->next_period_byte = io->byte_per_period;
return 0;
}
static
struct snd_soc_dai *rsnd_substream_to_dai(struct snd_pcm_substream *substream)
{
struct snd_soc_pcm_runtime *rtd = substream->private_data;
return rtd->cpu_dai;
}
static
struct rsnd_dai_stream *rsnd_rdai_to_io(struct rsnd_dai *rdai,
struct snd_pcm_substream *substream)
{
if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
return &rdai->playback;
else
return &rdai->capture;
}
static int rsnd_soc_dai_trigger(struct snd_pcm_substream *substream, int cmd,
struct snd_soc_dai *dai)
{
struct rsnd_priv *priv = snd_soc_dai_get_drvdata(dai);
struct rsnd_dai *rdai = rsnd_dai_to_rdai(dai);
struct rsnd_dai_stream *io = rsnd_rdai_to_io(rdai, substream);
struct rsnd_mod *mod = rsnd_ssi_mod_get_frm_dai(priv,
rsnd_dai_id(priv, rdai),
rsnd_dai_is_play(rdai, io));
int ssi_id = rsnd_mod_id(mod);
int ret;
unsigned long flags;
rsnd_lock(priv, flags);
switch (cmd) {
case SNDRV_PCM_TRIGGER_START:
ret = rsnd_dai_stream_init(io, substream);
if (ret < 0)
goto dai_trigger_end;
ret = rsnd_platform_call(priv, dai, start, ssi_id);
if (ret < 0)
goto dai_trigger_end;
ret = rsnd_dai_call(rdai, io, init);
if (ret < 0)
goto dai_trigger_end;
ret = rsnd_dai_call(rdai, io, start);
if (ret < 0)
goto dai_trigger_end;
break;
case SNDRV_PCM_TRIGGER_STOP:
ret = rsnd_dai_call(rdai, io, stop);
if (ret < 0)
goto dai_trigger_end;
ret = rsnd_dai_call(rdai, io, quit);
if (ret < 0)
goto dai_trigger_end;
ret = rsnd_platform_call(priv, dai, stop, ssi_id);
if (ret < 0)
goto dai_trigger_end;
break;
default:
ret = -EINVAL;
}
dai_trigger_end:
rsnd_unlock(priv, flags);
return ret;
}
static int rsnd_soc_dai_set_fmt(struct snd_soc_dai *dai, unsigned int fmt)
{
struct rsnd_dai *rdai = rsnd_dai_to_rdai(dai);
/* set master/slave audio interface */
switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
case SND_SOC_DAIFMT_CBM_CFM:
rdai->clk_master = 1;
break;
case SND_SOC_DAIFMT_CBS_CFS:
rdai->clk_master = 0;
break;
default:
return -EINVAL;
}
/* set clock inversion */
switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
case SND_SOC_DAIFMT_NB_IF:
rdai->bit_clk_inv = 0;
rdai->frm_clk_inv = 1;
break;
case SND_SOC_DAIFMT_IB_NF:
rdai->bit_clk_inv = 1;
rdai->frm_clk_inv = 0;
break;
case SND_SOC_DAIFMT_IB_IF:
rdai->bit_clk_inv = 1;
rdai->frm_clk_inv = 1;
break;
case SND_SOC_DAIFMT_NB_NF:
default:
rdai->bit_clk_inv = 0;
rdai->frm_clk_inv = 0;
break;
}
/* set format */
switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
case SND_SOC_DAIFMT_I2S:
rdai->sys_delay = 0;
rdai->data_alignment = 0;
break;
case SND_SOC_DAIFMT_LEFT_J:
rdai->sys_delay = 1;
rdai->data_alignment = 0;
break;
case SND_SOC_DAIFMT_RIGHT_J:
rdai->sys_delay = 1;
rdai->data_alignment = 1;
break;
}
return 0;
}
static const struct snd_soc_dai_ops rsnd_soc_dai_ops = {
.trigger = rsnd_soc_dai_trigger,
.set_fmt = rsnd_soc_dai_set_fmt,
};
static int rsnd_path_init(struct rsnd_priv *priv,
struct rsnd_dai *rdai,
struct rsnd_dai_stream *io)
{
struct rsnd_mod *mod;
struct rsnd_dai_platform_info *dai_info = rdai->info;
int ret;
int ssi_id = -1;
int scu_id = -1;
/*
* Gen1 is created by SRU/SSI, and this SRU is base module of
* Gen2's SCU/SSIU/SSI. (Gen2 SCU/SSIU came from SRU)
*
* Easy image is..
* Gen1 SRU = Gen2 SCU + SSIU + etc
*
* Gen2 SCU path is very flexible, but, Gen1 SRU (SCU parts) is
* using fixed path.
*/
if (dai_info) {
if (rsnd_is_enable_path(io, ssi))
ssi_id = rsnd_info_id(priv, io, ssi);
if (rsnd_is_enable_path(io, scu))
scu_id = rsnd_info_id(priv, io, scu);
} else {
/* get SSI's ID */
mod = rsnd_ssi_mod_get_frm_dai(priv,
rsnd_dai_id(priv, rdai),
rsnd_dai_is_play(rdai, io));
if (!mod)
return 0;
ssi_id = scu_id = rsnd_mod_id(mod);
}
ret = 0;
/* SCU */
if (scu_id >= 0) {
mod = rsnd_scu_mod_get(priv, scu_id);
ret = rsnd_dai_connect(mod, io);
if (ret < 0)
return ret;
}
/* SSI */
if (ssi_id >= 0) {
mod = rsnd_ssi_mod_get(priv, ssi_id);
ret = rsnd_dai_connect(mod, io);
if (ret < 0)
return ret;
}
return ret;
}
static int rsnd_path_exit(struct rsnd_priv *priv,
struct rsnd_dai *rdai,
struct rsnd_dai_stream *io)
{
struct rsnd_mod *mod;
int ret = 0, i;
/*
* remove all mod from rdai
*/
for (i = 0; i < RSND_MOD_MAX; i++) {
mod = io->mod[i];
if (!mod)
continue;
ret |= rsnd_dai_disconnect(mod, io);
}
return ret;
}
static int rsnd_dai_probe(struct platform_device *pdev,
struct rsnd_priv *priv)
{
struct snd_soc_dai_driver *drv;
struct rcar_snd_info *info = rsnd_priv_to_info(priv);
struct rsnd_dai *rdai;
struct rsnd_mod *pmod, *cmod;
struct device *dev = rsnd_priv_to_dev(priv);
int dai_nr = info->dai_info_nr;
int i;
/*
* dai_nr should be set via dai_info_nr,
* but allow it to keeping compatible
*/
if (!dai_nr) {
/* get max dai nr */
for (dai_nr = 0; dai_nr < 32; dai_nr++) {
pmod = rsnd_ssi_mod_get_frm_dai(priv, dai_nr, 1);
cmod = rsnd_ssi_mod_get_frm_dai(priv, dai_nr, 0);
if (!pmod && !cmod)
break;
}
}
if (!dai_nr) {
dev_err(dev, "no dai\n");
return -EIO;
}
drv = devm_kzalloc(dev, sizeof(*drv) * dai_nr, GFP_KERNEL);
rdai = devm_kzalloc(dev, sizeof(*rdai) * dai_nr, GFP_KERNEL);
if (!drv || !rdai) {
dev_err(dev, "dai allocate failed\n");
return -ENOMEM;
}
priv->rdai_nr = dai_nr;
priv->daidrv = drv;
priv->rdai = rdai;
for (i = 0; i < dai_nr; i++) {
if (info->dai_info)
rdai[i].info = &info->dai_info[i];
pmod = rsnd_ssi_mod_get_frm_dai(priv, i, 1);
cmod = rsnd_ssi_mod_get_frm_dai(priv, i, 0);
/*
* init rsnd_dai
*/
snprintf(rdai[i].name, RSND_DAI_NAME_SIZE, "rsnd-dai.%d", i);
/*
* init snd_soc_dai_driver
*/
drv[i].name = rdai[i].name;
drv[i].ops = &rsnd_soc_dai_ops;
if (pmod) {
drv[i].playback.rates = RSND_RATES;
drv[i].playback.formats = RSND_FMTS;
drv[i].playback.channels_min = 2;
drv[i].playback.channels_max = 2;
if (info->dai_info)
rdai[i].playback.info = &info->dai_info[i].playback;
rsnd_path_init(priv, &rdai[i], &rdai[i].playback);
}
if (cmod) {
drv[i].capture.rates = RSND_RATES;
drv[i].capture.formats = RSND_FMTS;
drv[i].capture.channels_min = 2;
drv[i].capture.channels_max = 2;
if (info->dai_info)
rdai[i].capture.info = &info->dai_info[i].capture;
rsnd_path_init(priv, &rdai[i], &rdai[i].capture);
}
dev_dbg(dev, "%s (%s/%s)\n", rdai[i].name,
pmod ? "play" : " -- ",
cmod ? "capture" : " -- ");
}
return 0;
}
static void rsnd_dai_remove(struct platform_device *pdev,
struct rsnd_priv *priv)
{
struct rsnd_dai *rdai;
int i;
for (i = 0; i < rsnd_rdai_nr(priv); i++) {
rdai = rsnd_dai_get(priv, i);
rsnd_path_exit(priv, rdai, &rdai->playback);
rsnd_path_exit(priv, rdai, &rdai->capture);
}
}
/*
* pcm ops
*/
static struct snd_pcm_hardware rsnd_pcm_hardware = {
.info = SNDRV_PCM_INFO_INTERLEAVED |
SNDRV_PCM_INFO_MMAP |
SNDRV_PCM_INFO_MMAP_VALID |
SNDRV_PCM_INFO_PAUSE,
.buffer_bytes_max = 64 * 1024,
.period_bytes_min = 32,
.period_bytes_max = 8192,
.periods_min = 1,
.periods_max = 32,
.fifo_size = 256,
};
static int rsnd_pcm_open(struct snd_pcm_substream *substream)
{
struct snd_pcm_runtime *runtime = substream->runtime;
int ret = 0;
snd_soc_set_runtime_hwparams(substream, &rsnd_pcm_hardware);
ret = snd_pcm_hw_constraint_integer(runtime,
SNDRV_PCM_HW_PARAM_PERIODS);
return ret;
}
static int rsnd_hw_params(struct snd_pcm_substream *substream,
struct snd_pcm_hw_params *hw_params)
{
return snd_pcm_lib_malloc_pages(substream,
params_buffer_bytes(hw_params));
}
static snd_pcm_uframes_t rsnd_pointer(struct snd_pcm_substream *substream)
{
struct snd_pcm_runtime *runtime = substream->runtime;
struct snd_soc_dai *dai = rsnd_substream_to_dai(substream);
struct rsnd_dai *rdai = rsnd_dai_to_rdai(dai);
struct rsnd_dai_stream *io = rsnd_rdai_to_io(rdai, substream);
return bytes_to_frames(runtime, io->byte_pos);
}
static struct snd_pcm_ops rsnd_pcm_ops = {
.open = rsnd_pcm_open,
.ioctl = snd_pcm_lib_ioctl,
.hw_params = rsnd_hw_params,
.hw_free = snd_pcm_lib_free_pages,
.pointer = rsnd_pointer,
};
/*
* snd_soc_platform
*/
#define PREALLOC_BUFFER (32 * 1024)
#define PREALLOC_BUFFER_MAX (32 * 1024)
static int rsnd_pcm_new(struct snd_soc_pcm_runtime *rtd)
{
return snd_pcm_lib_preallocate_pages_for_all(
rtd->pcm,
SNDRV_DMA_TYPE_DEV,
rtd->card->snd_card->dev,
PREALLOC_BUFFER, PREALLOC_BUFFER_MAX);
}
static void rsnd_pcm_free(struct snd_pcm *pcm)
{
snd_pcm_lib_preallocate_free_for_all(pcm);
}
static struct snd_soc_platform_driver rsnd_soc_platform = {
.ops = &rsnd_pcm_ops,
.pcm_new = rsnd_pcm_new,
.pcm_free = rsnd_pcm_free,
};
static const struct snd_soc_component_driver rsnd_soc_component = {
.name = "rsnd",
};
/*
* rsnd probe
*/
static int rsnd_probe(struct platform_device *pdev)
{
struct rcar_snd_info *info;
struct rsnd_priv *priv;
struct device *dev = &pdev->dev;
int (*probe_func[])(struct platform_device *pdev,
struct rsnd_priv *priv) = {
rsnd_gen_probe,
rsnd_ssi_probe,
rsnd_scu_probe,
rsnd_adg_probe,
rsnd_dai_probe,
};
int ret, i;
info = pdev->dev.platform_data;
if (!info) {
dev_err(dev, "driver needs R-Car sound information\n");
return -ENODEV;
}
/*
* init priv data
*/
priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL);
if (!priv) {
dev_err(dev, "priv allocate failed\n");
return -ENODEV;
}
priv->dev = dev;
priv->info = info;
spin_lock_init(&priv->lock);
/*
* init each module
*/
for (i = 0; i < ARRAY_SIZE(probe_func); i++) {
ret = probe_func[i](pdev, priv);
if (ret)
return ret;
}
/*
* asoc register
*/
ret = snd_soc_register_platform(dev, &rsnd_soc_platform);
if (ret < 0) {
dev_err(dev, "cannot snd soc register\n");
return ret;
}
ret = snd_soc_register_component(dev, &rsnd_soc_component,
priv->daidrv, rsnd_rdai_nr(priv));
if (ret < 0) {
dev_err(dev, "cannot snd dai register\n");
goto exit_snd_soc;
}
dev_set_drvdata(dev, priv);
pm_runtime_enable(dev);
dev_info(dev, "probed\n");
return ret;
exit_snd_soc:
snd_soc_unregister_platform(dev);
return ret;
}
static int rsnd_remove(struct platform_device *pdev)
{
struct rsnd_priv *priv = dev_get_drvdata(&pdev->dev);
pm_runtime_disable(&pdev->dev);
/*
* remove each module
*/
rsnd_ssi_remove(pdev, priv);
rsnd_adg_remove(pdev, priv);
rsnd_scu_remove(pdev, priv);
rsnd_dai_remove(pdev, priv);
rsnd_gen_remove(pdev, priv);
return 0;
}
static struct platform_driver rsnd_driver = {
.driver = {
.name = "rcar_sound",
},
.probe = rsnd_probe,
.remove = rsnd_remove,
};
module_platform_driver(rsnd_driver);
MODULE_LICENSE("GPL");
MODULE_DESCRIPTION("Renesas R-Car audio driver");
MODULE_AUTHOR("Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>");
MODULE_ALIAS("platform:rcar-pcm-audio");
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