Commit 81af7261 authored by Mark Brown's avatar Mark Brown

Merge remote-tracking branch 'asoc/topic/rcar' into asoc-next

parents 60955521 4b9c75ea
Renesas Sampling Rate Convert Sound Card:
ASoC simple SCU Sound Card
Renesas Sampling Rate Convert Sound Card specifies audio DAI connections of SoC <-> codec.
Simple-Card specifies audio DAI connections of SoC <-> codec.
Required properties:
- compatible : "renesas,rsrc-card{,<board>}"
Examples with boards are:
- "renesas,rsrc-card"
- "renesas,rsrc-card,lager"
- "renesas,rsrc-card,koelsch"
- compatible : "simple-scu-audio-card"
"renesas,rsrc-card"
Optional properties:
- card_name : User specified audio sound card name, one string
- simple-audio-card,name : User specified audio sound card name, one string
property.
- cpu : CPU sub-node
- codec : CODEC sub-node
- simple-audio-card,cpu : CPU sub-node
- simple-audio-card,codec : CODEC sub-node
Optional subnode properties:
- format : CPU/CODEC common audio format.
- simple-audio-card,format : CPU/CODEC common audio format.
"i2s", "right_j", "left_j" , "dsp_a"
"dsp_b", "ac97", "pdm", "msb", "lsb"
- frame-master : Indicates dai-link frame master.
- simple-audio-card,frame-master : Indicates dai-link frame master.
phandle to a cpu or codec subnode.
- bitclock-master : Indicates dai-link bit clock master.
- simple-audio-card,bitclock-master : Indicates dai-link bit clock master.
phandle to a cpu or codec subnode.
- bitclock-inversion : bool property. Add this if the
- simple-audio-card,bitclock-inversion : bool property. Add this if the
dai-link uses bit clock inversion.
- frame-inversion : bool property. Add this if the
- simple-audio-card,frame-inversion : bool property. Add this if the
dai-link uses frame clock inversion.
- convert-rate : platform specified sampling rate convert
- convert-channels : platform specified converted channel size (2 - 8 ch)
- audio-prefix : see audio-routing
- audio-routing : A list of the connections between audio components.
- simple-audio-card,convert-rate : platform specified sampling rate convert
- simple-audio-card,convert-channels : platform specified converted channel size (2 - 8 ch)
- simple-audio-card,prefix : see audio-routing
- simple-audio-card,routing : A list of the connections between audio components.
Each entry is a pair of strings, the first being the connection's sink,
the second being the connection's source. Valid names for sources.
use audio-prefix if some components is using same sink/sources naming.
......@@ -54,22 +52,59 @@ Optional CPU/CODEC subnodes properties:
clk_disable_unprepare() in dai
shutdown().
Example
Example 1. Sampling Rate Covert
sound {
compatible = "renesas,rsrc-card,lager";
compatible = "simple-scu-audio-card";
card-name = "rsnd-ak4643";
format = "left_j";
bitclock-master = <&sndcodec>;
frame-master = <&sndcodec>;
simple-audio-card,name = "rsnd-ak4643";
simple-audio-card,format = "left_j";
simple-audio-card,format = "left_j";
simple-audio-card,bitclock-master = <&sndcodec>;
simple-audio-card,frame-master = <&sndcodec>;
sndcpu: cpu {
simple-audio-card,convert-rate = <48000>; /* see audio_clk_a */
simple-audio-card,prefix = "ak4642";
simple-audio-card,routing = "ak4642 Playback", "DAI0 Playback",
"DAI0 Capture", "ak4642 Capture";
sndcpu: simple-audio-card,cpu {
sound-dai = <&rcar_sound>;
};
sndcodec: codec {
sndcodec: simple-audio-card,codec {
sound-dai = <&ak4643>;
system-clock-frequency = <11289600>;
};
};
Example 2. 2 CPU 1 Codec
sound {
compatible = "renesas,rsrc-card";
card-name = "rsnd-ak4643";
format = "left_j";
bitclock-master = <&dpcmcpu>;
frame-master = <&dpcmcpu>;
convert-rate = <48000>; /* see audio_clk_a */
audio-prefix = "ak4642";
audio-routing = "ak4642 Playback", "DAI0 Playback",
"ak4642 Playback", "DAI1 Playback";
dpcmcpu: cpu@0 {
sound-dai = <&rcar_sound 0>;
};
cpu@1 {
sound-dai = <&rcar_sound 1>;
};
codec {
sound-dai = <&ak4643>;
clocks = <&audio_clock>;
};
};
......@@ -33,4 +33,38 @@ int asoc_simple_card_set_dailink_name(struct device *dev,
int asoc_simple_card_parse_card_name(struct snd_soc_card *card,
char *prefix);
#define asoc_simple_card_parse_clk_cpu(node, dai_link, simple_dai) \
asoc_simple_card_parse_clk(node, dai_link->cpu_of_node, simple_dai)
#define asoc_simple_card_parse_clk_codec(node, dai_link, simple_dai) \
asoc_simple_card_parse_clk(node, dai_link->codec_of_node, simple_dai)
int asoc_simple_card_parse_clk(struct device_node *node,
struct device_node *dai_of_node,
struct asoc_simple_dai *simple_dai);
#define asoc_simple_card_parse_cpu(node, dai_link, \
list_name, cells_name, is_single_link) \
asoc_simple_card_parse_dai(node, &dai_link->cpu_of_node, \
&dai_link->cpu_dai_name, list_name, cells_name, is_single_link)
#define asoc_simple_card_parse_codec(node, dai_link, list_name, cells_name) \
asoc_simple_card_parse_dai(node, &dai_link->codec_of_node, \
&dai_link->codec_dai_name, list_name, cells_name, NULL)
#define asoc_simple_card_parse_platform(node, dai_link, list_name, cells_name) \
asoc_simple_card_parse_dai(node, &dai_link->platform_of_node, \
NULL, list_name, cells_name, NULL)
int asoc_simple_card_parse_dai(struct device_node *node,
struct device_node **endpoint_np,
const char **dai_name,
const char *list_name,
const char *cells_name,
int *is_single_links);
int asoc_simple_card_init_dai(struct snd_soc_dai *dai,
struct asoc_simple_dai *simple_dai);
int asoc_simple_card_canonicalize_dailink(struct snd_soc_dai_link *dai_link);
void asoc_simple_card_canonicalize_cpu(struct snd_soc_dai_link *dai_link,
int is_single_links);
int asoc_simple_card_clean_reference(struct snd_soc_card *card);
#endif /* __SIMPLE_CARD_CORE_H */
......@@ -6,3 +6,11 @@ config SND_SIMPLE_CARD
select SND_SIMPLE_CARD_UTILS
help
This option enables generic simple sound card support
config SND_SIMPLE_SCU_CARD
tristate "ASoC Simple SCU sound card support"
depends on OF
select SND_SIMPLE_CARD_UTILS
help
This option enables generic simple SCU sound card support.
It supports DPCM of multi CPU single Codec system.
snd-soc-simple-card-utils-objs := simple-card-utils.o
snd-soc-simple-card-objs := simple-card.o
snd-soc-simple-scu-card-objs := simple-scu-card.o
obj-$(CONFIG_SND_SIMPLE_CARD_UTILS) += snd-soc-simple-card-utils.o
obj-$(CONFIG_SND_SIMPLE_CARD) += snd-soc-simple-card.o
obj-$(CONFIG_SND_SIMPLE_SCU_CARD) += snd-soc-simple-scu-card.o
......@@ -7,6 +7,7 @@
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
#include <linux/clk.h>
#include <linux/module.h>
#include <linux/of.h>
#include <sound/simple_card_utils.h>
......@@ -97,6 +98,146 @@ int asoc_simple_card_parse_card_name(struct snd_soc_card *card,
}
EXPORT_SYMBOL_GPL(asoc_simple_card_parse_card_name);
int asoc_simple_card_parse_clk(struct device_node *node,
struct device_node *dai_of_node,
struct asoc_simple_dai *simple_dai)
{
struct clk *clk;
u32 val;
/*
* Parse dai->sysclk come from "clocks = <&xxx>"
* (if system has common clock)
* or "system-clock-frequency = <xxx>"
* or device's module clock.
*/
clk = of_clk_get(node, 0);
if (!IS_ERR(clk)) {
simple_dai->sysclk = clk_get_rate(clk);
simple_dai->clk = clk;
} else if (!of_property_read_u32(node, "system-clock-frequency", &val)) {
simple_dai->sysclk = val;
} else {
clk = of_clk_get(dai_of_node, 0);
if (!IS_ERR(clk))
simple_dai->sysclk = clk_get_rate(clk);
}
return 0;
}
EXPORT_SYMBOL_GPL(asoc_simple_card_parse_clk);
int asoc_simple_card_parse_dai(struct device_node *node,
struct device_node **dai_of_node,
const char **dai_name,
const char *list_name,
const char *cells_name,
int *is_single_link)
{
struct of_phandle_args args;
int ret;
if (!node)
return 0;
/*
* Get node via "sound-dai = <&phandle port>"
* it will be used as xxx_of_node on soc_bind_dai_link()
*/
ret = of_parse_phandle_with_args(node, list_name, cells_name, 0, &args);
if (ret)
return ret;
/* Get dai->name */
if (dai_name) {
ret = snd_soc_of_get_dai_name(node, dai_name);
if (ret < 0)
return ret;
}
*dai_of_node = args.np;
if (is_single_link)
*is_single_link = !args.args_count;
return 0;
}
EXPORT_SYMBOL_GPL(asoc_simple_card_parse_dai);
int asoc_simple_card_init_dai(struct snd_soc_dai *dai,
struct asoc_simple_dai *simple_dai)
{
int ret;
if (simple_dai->sysclk) {
ret = snd_soc_dai_set_sysclk(dai, 0, simple_dai->sysclk, 0);
if (ret && ret != -ENOTSUPP) {
dev_err(dai->dev, "simple-card: set_sysclk error\n");
return ret;
}
}
if (simple_dai->slots) {
ret = snd_soc_dai_set_tdm_slot(dai,
simple_dai->tx_slot_mask,
simple_dai->rx_slot_mask,
simple_dai->slots,
simple_dai->slot_width);
if (ret && ret != -ENOTSUPP) {
dev_err(dai->dev, "simple-card: set_tdm_slot error\n");
return ret;
}
}
return 0;
}
EXPORT_SYMBOL_GPL(asoc_simple_card_init_dai);
int asoc_simple_card_canonicalize_dailink(struct snd_soc_dai_link *dai_link)
{
if (!dai_link->cpu_dai_name || !dai_link->codec_dai_name)
return -EINVAL;
/* Assumes platform == cpu */
if (!dai_link->platform_of_node)
dai_link->platform_of_node = dai_link->cpu_of_node;
return 0;
}
EXPORT_SYMBOL_GPL(asoc_simple_card_canonicalize_dailink);
void asoc_simple_card_canonicalize_cpu(struct snd_soc_dai_link *dai_link,
int is_single_links)
{
/*
* In soc_bind_dai_link() will check cpu name after
* of_node matching if dai_link has cpu_dai_name.
* but, it will never match if name was created by
* fmt_single_name() remove cpu_dai_name if cpu_args
* was 0. See:
* fmt_single_name()
* fmt_multiple_name()
*/
if (is_single_links)
dai_link->cpu_dai_name = NULL;
}
EXPORT_SYMBOL_GPL(asoc_simple_card_canonicalize_cpu);
int asoc_simple_card_clean_reference(struct snd_soc_card *card)
{
struct snd_soc_dai_link *dai_link;
int num_links;
for (num_links = 0, dai_link = card->dai_link;
num_links < card->num_links;
num_links++, dai_link++) {
of_node_put(dai_link->cpu_of_node);
of_node_put(dai_link->codec_of_node);
}
return 0;
}
EXPORT_SYMBOL_GPL(asoc_simple_card_clean_reference);
/* Module information */
MODULE_AUTHOR("Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>");
MODULE_DESCRIPTION("ALSA SoC Simple Card Utils");
......
......@@ -44,6 +44,8 @@ struct simple_card_data {
#define simple_priv_to_link(priv, i) ((priv)->snd_card.dai_link + i)
#define simple_priv_to_props(priv, i) ((priv)->dai_props + i)
#define DAI "sound-dai"
#define CELL "#sound-dai-cells"
#define PREFIX "simple-audio-card,"
#define asoc_simple_card_init_hp(card, sjack, prefix)\
......@@ -177,51 +179,19 @@ static struct snd_soc_ops asoc_simple_card_ops = {
.hw_params = asoc_simple_card_hw_params,
};
static int __asoc_simple_card_dai_init(struct snd_soc_dai *dai,
struct asoc_simple_dai *set)
{
int ret;
if (set->sysclk) {
ret = snd_soc_dai_set_sysclk(dai, 0, set->sysclk, 0);
if (ret && ret != -ENOTSUPP) {
dev_err(dai->dev, "simple-card: set_sysclk error\n");
goto err;
}
}
if (set->slots) {
ret = snd_soc_dai_set_tdm_slot(dai,
set->tx_slot_mask,
set->rx_slot_mask,
set->slots,
set->slot_width);
if (ret && ret != -ENOTSUPP) {
dev_err(dai->dev, "simple-card: set_tdm_slot error\n");
goto err;
}
}
ret = 0;
err:
return ret;
}
static int asoc_simple_card_dai_init(struct snd_soc_pcm_runtime *rtd)
{
struct simple_card_data *priv = snd_soc_card_get_drvdata(rtd->card);
struct snd_soc_dai *codec = rtd->codec_dai;
struct snd_soc_dai *cpu = rtd->cpu_dai;
struct simple_dai_props *dai_props;
struct simple_dai_props *dai_props = &priv->dai_props[rtd->num];
int ret;
dai_props = &priv->dai_props[rtd->num];
ret = __asoc_simple_card_dai_init(codec, &dai_props->codec_dai);
ret = asoc_simple_card_init_dai(codec, &dai_props->codec_dai);
if (ret < 0)
return ret;
ret = __asoc_simple_card_dai_init(cpu, &dai_props->cpu_dai);
ret = asoc_simple_card_init_dai(cpu, &dai_props->cpu_dai);
if (ret < 0)
return ret;
......@@ -236,78 +206,6 @@ static int asoc_simple_card_dai_init(struct snd_soc_pcm_runtime *rtd)
return 0;
}
static int
asoc_simple_card_sub_parse_of(struct device_node *np,
struct asoc_simple_dai *dai,
struct device_node **p_node,
const char **name,
int *args_count)
{
struct of_phandle_args args;
struct clk *clk;
u32 val;
int ret;
if (!np)
return 0;
/*
* Get node via "sound-dai = <&phandle port>"
* it will be used as xxx_of_node on soc_bind_dai_link()
*/
ret = of_parse_phandle_with_args(np, "sound-dai",
"#sound-dai-cells", 0, &args);
if (ret)
return ret;
*p_node = args.np;
if (args_count)
*args_count = args.args_count;
/* Get dai->name */
if (name) {
ret = snd_soc_of_get_dai_name(np, name);
if (ret < 0)
return ret;
}
if (!dai)
return 0;
/* Parse TDM slot */
ret = snd_soc_of_parse_tdm_slot(np, &dai->tx_slot_mask,
&dai->rx_slot_mask,
&dai->slots, &dai->slot_width);
if (ret)
return ret;
/*
* Parse dai->sysclk come from "clocks = <&xxx>"
* (if system has common clock)
* or "system-clock-frequency = <xxx>"
* or device's module clock.
*/
if (of_property_read_bool(np, "clocks")) {
clk = of_clk_get(np, 0);
if (IS_ERR(clk)) {
ret = PTR_ERR(clk);
return ret;
}
dai->sysclk = clk_get_rate(clk);
dai->clk = clk;
} else if (!of_property_read_u32(np, "system-clock-frequency", &val)) {
dai->sysclk = val;
} else {
clk = of_clk_get(args.np, 0);
if (!IS_ERR(clk))
dai->sysclk = clk_get_rate(clk);
}
return 0;
}
static int asoc_simple_card_dai_link_of(struct device_node *node,
struct simple_card_data *priv,
int idx,
......@@ -316,12 +214,14 @@ static int asoc_simple_card_dai_link_of(struct device_node *node,
struct device *dev = simple_priv_to_dev(priv);
struct snd_soc_dai_link *dai_link = simple_priv_to_link(priv, idx);
struct simple_dai_props *dai_props = simple_priv_to_props(priv, idx);
struct asoc_simple_dai *cpu_dai = &dai_props->cpu_dai;
struct asoc_simple_dai *codec_dai = &dai_props->codec_dai;
struct device_node *cpu = NULL;
struct device_node *plat = NULL;
struct device_node *codec = NULL;
char prop[128];
char *prefix = "";
int ret, cpu_args;
int ret, single_cpu;
u32 val;
/* For single DAI link & old style of DT node */
......@@ -351,33 +251,44 @@ static int asoc_simple_card_dai_link_of(struct device_node *node,
if (!of_property_read_u32(node, "mclk-fs", &val))
dai_props->mclk_fs = val;
ret = asoc_simple_card_sub_parse_of(cpu, &dai_props->cpu_dai,
&dai_link->cpu_of_node,
&dai_link->cpu_dai_name,
&cpu_args);
ret = asoc_simple_card_parse_cpu(cpu, dai_link,
DAI, CELL, &single_cpu);
if (ret < 0)
goto dai_link_of_err;
ret = asoc_simple_card_sub_parse_of(codec, &dai_props->codec_dai,
&dai_link->codec_of_node,
&dai_link->codec_dai_name, NULL);
ret = asoc_simple_card_parse_codec(codec, dai_link, DAI, CELL);
if (ret < 0)
goto dai_link_of_err;
ret = asoc_simple_card_sub_parse_of(plat, NULL,
&dai_link->platform_of_node,
NULL, NULL);
ret = asoc_simple_card_parse_platform(plat, dai_link, DAI, CELL);
if (ret < 0)
goto dai_link_of_err;
if (!dai_link->cpu_dai_name || !dai_link->codec_dai_name) {
ret = -EINVAL;
ret = snd_soc_of_parse_tdm_slot(cpu, &cpu_dai->tx_slot_mask,
&cpu_dai->rx_slot_mask,
&cpu_dai->slots,
&cpu_dai->slot_width);
if (ret < 0)
goto dai_link_of_err;
}
/* Assumes platform == cpu */
if (!dai_link->platform_of_node)
dai_link->platform_of_node = dai_link->cpu_of_node;
ret = snd_soc_of_parse_tdm_slot(codec, &codec_dai->tx_slot_mask,
&codec_dai->rx_slot_mask,
&codec_dai->slots,
&codec_dai->slot_width);
if (ret < 0)
goto dai_link_of_err;
ret = asoc_simple_card_parse_clk_cpu(cpu, dai_link, cpu_dai);
if (ret < 0)
goto dai_link_of_err;
ret = asoc_simple_card_parse_clk_codec(codec, dai_link, codec_dai);
if (ret < 0)
goto dai_link_of_err;
ret = asoc_simple_card_canonicalize_dailink(dai_link);
if (ret < 0)
goto dai_link_of_err;
ret = asoc_simple_card_set_dailink_name(dev, dai_link,
"%s-%s",
......@@ -398,17 +309,7 @@ static int asoc_simple_card_dai_link_of(struct device_node *node,
dai_link->codec_dai_name,
dai_props->codec_dai.sysclk);
/*
* In soc_bind_dai_link() will check cpu name after
* of_node matching if dai_link has cpu_dai_name.
* but, it will never match if name was created by
* fmt_single_name() remove cpu_dai_name if cpu_args
* was 0. See:
* fmt_single_name()
* fmt_multiple_name()
*/
if (!cpu_args)
dai_link->cpu_dai_name = NULL;
asoc_simple_card_canonicalize_cpu(dai_link, single_cpu);
dai_link_of_err:
of_node_put(cpu);
......@@ -477,21 +378,6 @@ static int asoc_simple_card_parse_of(struct device_node *node,
return 0;
}
/* Decrease the reference count of the device nodes */
static int asoc_simple_card_unref(struct snd_soc_card *card)
{
struct snd_soc_dai_link *dai_link;
int num_links;
for (num_links = 0, dai_link = card->dai_link;
num_links < card->num_links;
num_links++, dai_link++) {
of_node_put(dai_link->cpu_of_node);
of_node_put(dai_link->codec_of_node);
}
return 0;
}
static int asoc_simple_card_probe(struct platform_device *pdev)
{
struct simple_card_data *priv;
......@@ -577,7 +463,7 @@ static int asoc_simple_card_probe(struct platform_device *pdev)
return ret;
err:
asoc_simple_card_unref(&priv->snd_card);
asoc_simple_card_clean_reference(&priv->snd_card);
return ret;
}
......@@ -589,7 +475,7 @@ static int asoc_simple_card_remove(struct platform_device *pdev)
asoc_simple_card_remove_jack(&priv->hp_jack);
asoc_simple_card_remove_jack(&priv->mic_jack);
return asoc_simple_card_unref(card);
return asoc_simple_card_clean_reference(card);
}
static const struct of_device_id asoc_simple_of_match[] = {
......
......@@ -42,12 +42,6 @@ config SND_SOC_RCAR
help
This option enables R-Car SRU/SCU/SSIU/SSI sound support
config SND_SOC_RSRC_CARD
tristate "Renesas Sampling Rate Convert Sound Card"
select SND_SIMPLE_CARD_UTILS
help
This option enables simple sound if you need sampling rate convert
##
## Boards
##
......
snd-soc-rcar-objs := core.o gen.o dma.o adg.o ssi.o ssiu.o src.o ctu.o mix.o dvc.o cmd.o
obj-$(CONFIG_SND_SOC_RCAR) += snd-soc-rcar.o
snd-soc-rsrc-card-objs := rsrc-card.o
obj-$(CONFIG_SND_SOC_RSRC_CARD) += snd-soc-rsrc-card.o
......@@ -110,6 +110,7 @@ MODULE_DEVICE_TABLE(of, rsnd_of_match);
/*
* rsnd_mod functions
*/
#ifdef DEBUG
void rsnd_mod_make_sure(struct rsnd_mod *mod, enum rsnd_mod_type type)
{
if (mod->type != type) {
......@@ -120,6 +121,7 @@ void rsnd_mod_make_sure(struct rsnd_mod *mod, enum rsnd_mod_type type)
rsnd_mod_name(mod), rsnd_mod_id(mod));
}
}
#endif
char *rsnd_mod_name(struct rsnd_mod *mod)
{
......@@ -574,6 +576,7 @@ static int rsnd_soc_dai_trigger(struct snd_pcm_substream *substream, int cmd,
switch (cmd) {
case SNDRV_PCM_TRIGGER_START:
case SNDRV_PCM_TRIGGER_RESUME:
rsnd_dai_stream_init(io, substream);
ret = rsnd_dai_call(init, io, priv);
......@@ -590,6 +593,7 @@ static int rsnd_soc_dai_trigger(struct snd_pcm_substream *substream, int cmd,
break;
case SNDRV_PCM_TRIGGER_STOP:
case SNDRV_PCM_TRIGGER_SUSPEND:
ret = rsnd_dai_call(irq, io, priv, 0);
ret |= rsnd_dai_call(stop, io, priv);
......
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