1139 lines
28 KiB
C
1139 lines
28 KiB
C
// SPDX-License-Identifier: GPL-2.0
|
|
//
|
|
// simple-card-utils.c
|
|
//
|
|
// Copyright (c) 2016 Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
|
|
|
|
#include <linux/clk.h>
|
|
#include <linux/gpio.h>
|
|
#include <linux/gpio/consumer.h>
|
|
#include <linux/module.h>
|
|
#include <linux/of.h>
|
|
#include <linux/of_graph.h>
|
|
#include <sound/jack.h>
|
|
#include <sound/pcm_params.h>
|
|
#include <sound/simple_card_utils.h>
|
|
|
|
static void asoc_simple_fixup_sample_fmt(struct asoc_simple_data *data,
|
|
struct snd_pcm_hw_params *params)
|
|
{
|
|
int i;
|
|
struct snd_mask *mask = hw_param_mask(params,
|
|
SNDRV_PCM_HW_PARAM_FORMAT);
|
|
struct {
|
|
char *fmt;
|
|
u32 val;
|
|
} of_sample_fmt_table[] = {
|
|
{ "s8", SNDRV_PCM_FORMAT_S8},
|
|
{ "s16_le", SNDRV_PCM_FORMAT_S16_LE},
|
|
{ "s24_le", SNDRV_PCM_FORMAT_S24_LE},
|
|
{ "s24_3le", SNDRV_PCM_FORMAT_S24_3LE},
|
|
{ "s32_le", SNDRV_PCM_FORMAT_S32_LE},
|
|
};
|
|
|
|
for (i = 0; i < ARRAY_SIZE(of_sample_fmt_table); i++) {
|
|
if (!strcmp(data->convert_sample_format,
|
|
of_sample_fmt_table[i].fmt)) {
|
|
snd_mask_none(mask);
|
|
snd_mask_set(mask, of_sample_fmt_table[i].val);
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
void asoc_simple_parse_convert(struct device_node *np,
|
|
char *prefix,
|
|
struct asoc_simple_data *data)
|
|
{
|
|
char prop[128];
|
|
|
|
if (!prefix)
|
|
prefix = "";
|
|
|
|
/* sampling rate convert */
|
|
snprintf(prop, sizeof(prop), "%s%s", prefix, "convert-rate");
|
|
of_property_read_u32(np, prop, &data->convert_rate);
|
|
|
|
/* channels transfer */
|
|
snprintf(prop, sizeof(prop), "%s%s", prefix, "convert-channels");
|
|
of_property_read_u32(np, prop, &data->convert_channels);
|
|
|
|
/* convert sample format */
|
|
snprintf(prop, sizeof(prop), "%s%s", prefix, "convert-sample-format");
|
|
of_property_read_string(np, prop, &data->convert_sample_format);
|
|
}
|
|
EXPORT_SYMBOL_GPL(asoc_simple_parse_convert);
|
|
|
|
/**
|
|
* asoc_simple_is_convert_required() - Query if HW param conversion was requested
|
|
* @data: Link data.
|
|
*
|
|
* Returns true if any HW param conversion was requested for this DAI link with
|
|
* any "convert-xxx" properties.
|
|
*/
|
|
bool asoc_simple_is_convert_required(const struct asoc_simple_data *data)
|
|
{
|
|
return data->convert_rate ||
|
|
data->convert_channels ||
|
|
data->convert_sample_format;
|
|
}
|
|
EXPORT_SYMBOL_GPL(asoc_simple_is_convert_required);
|
|
|
|
int asoc_simple_parse_daifmt(struct device *dev,
|
|
struct device_node *node,
|
|
struct device_node *codec,
|
|
char *prefix,
|
|
unsigned int *retfmt)
|
|
{
|
|
struct device_node *bitclkmaster = NULL;
|
|
struct device_node *framemaster = NULL;
|
|
unsigned int daifmt;
|
|
|
|
daifmt = snd_soc_daifmt_parse_format(node, prefix);
|
|
|
|
snd_soc_daifmt_parse_clock_provider_as_phandle(node, prefix, &bitclkmaster, &framemaster);
|
|
if (!bitclkmaster && !framemaster) {
|
|
/*
|
|
* No dai-link level and master setting was not found from
|
|
* sound node level, revert back to legacy DT parsing and
|
|
* take the settings from codec node.
|
|
*/
|
|
dev_dbg(dev, "Revert to legacy daifmt parsing\n");
|
|
|
|
daifmt |= snd_soc_daifmt_parse_clock_provider_as_flag(codec, NULL);
|
|
} else {
|
|
daifmt |= snd_soc_daifmt_clock_provider_from_bitmap(
|
|
((codec == bitclkmaster) << 4) | (codec == framemaster));
|
|
}
|
|
|
|
of_node_put(bitclkmaster);
|
|
of_node_put(framemaster);
|
|
|
|
*retfmt = daifmt;
|
|
|
|
return 0;
|
|
}
|
|
EXPORT_SYMBOL_GPL(asoc_simple_parse_daifmt);
|
|
|
|
int asoc_simple_parse_tdm_width_map(struct device *dev, struct device_node *np,
|
|
struct asoc_simple_dai *dai)
|
|
{
|
|
u32 *array_values, *p;
|
|
int n, i, ret;
|
|
|
|
if (!of_property_read_bool(np, "dai-tdm-slot-width-map"))
|
|
return 0;
|
|
|
|
n = of_property_count_elems_of_size(np, "dai-tdm-slot-width-map", sizeof(u32));
|
|
if (n % 3) {
|
|
dev_err(dev, "Invalid number of cells for dai-tdm-slot-width-map\n");
|
|
return -EINVAL;
|
|
}
|
|
|
|
dai->tdm_width_map = devm_kcalloc(dev, n, sizeof(*dai->tdm_width_map), GFP_KERNEL);
|
|
if (!dai->tdm_width_map)
|
|
return -ENOMEM;
|
|
|
|
array_values = kcalloc(n, sizeof(*array_values), GFP_KERNEL);
|
|
if (!array_values)
|
|
return -ENOMEM;
|
|
|
|
ret = of_property_read_u32_array(np, "dai-tdm-slot-width-map", array_values, n);
|
|
if (ret < 0) {
|
|
dev_err(dev, "Could not read dai-tdm-slot-width-map: %d\n", ret);
|
|
goto out;
|
|
}
|
|
|
|
p = array_values;
|
|
for (i = 0; i < n / 3; ++i) {
|
|
dai->tdm_width_map[i].sample_bits = *p++;
|
|
dai->tdm_width_map[i].slot_width = *p++;
|
|
dai->tdm_width_map[i].slot_count = *p++;
|
|
}
|
|
|
|
dai->n_tdm_widths = i;
|
|
ret = 0;
|
|
out:
|
|
kfree(array_values);
|
|
|
|
return ret;
|
|
}
|
|
EXPORT_SYMBOL_GPL(asoc_simple_parse_tdm_width_map);
|
|
|
|
int asoc_simple_set_dailink_name(struct device *dev,
|
|
struct snd_soc_dai_link *dai_link,
|
|
const char *fmt, ...)
|
|
{
|
|
va_list ap;
|
|
char *name = NULL;
|
|
int ret = -ENOMEM;
|
|
|
|
va_start(ap, fmt);
|
|
name = devm_kvasprintf(dev, GFP_KERNEL, fmt, ap);
|
|
va_end(ap);
|
|
|
|
if (name) {
|
|
ret = 0;
|
|
|
|
dai_link->name = name;
|
|
dai_link->stream_name = name;
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
EXPORT_SYMBOL_GPL(asoc_simple_set_dailink_name);
|
|
|
|
int asoc_simple_parse_card_name(struct snd_soc_card *card,
|
|
char *prefix)
|
|
{
|
|
int ret;
|
|
|
|
if (!prefix)
|
|
prefix = "";
|
|
|
|
/* Parse the card name from DT */
|
|
ret = snd_soc_of_parse_card_name(card, "label");
|
|
if (ret < 0 || !card->name) {
|
|
char prop[128];
|
|
|
|
snprintf(prop, sizeof(prop), "%sname", prefix);
|
|
ret = snd_soc_of_parse_card_name(card, prop);
|
|
if (ret < 0)
|
|
return ret;
|
|
}
|
|
|
|
if (!card->name && card->dai_link)
|
|
card->name = card->dai_link->name;
|
|
|
|
return 0;
|
|
}
|
|
EXPORT_SYMBOL_GPL(asoc_simple_parse_card_name);
|
|
|
|
static int asoc_simple_clk_enable(struct asoc_simple_dai *dai)
|
|
{
|
|
if (dai)
|
|
return clk_prepare_enable(dai->clk);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void asoc_simple_clk_disable(struct asoc_simple_dai *dai)
|
|
{
|
|
if (dai)
|
|
clk_disable_unprepare(dai->clk);
|
|
}
|
|
|
|
int asoc_simple_parse_clk(struct device *dev,
|
|
struct device_node *node,
|
|
struct asoc_simple_dai *simple_dai,
|
|
struct snd_soc_dai_link_component *dlc)
|
|
{
|
|
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 = devm_get_clk_from_child(dev, node, NULL);
|
|
simple_dai->clk_fixed = of_property_read_bool(
|
|
node, "system-clock-fixed");
|
|
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;
|
|
simple_dai->clk_fixed = true;
|
|
} else {
|
|
clk = devm_get_clk_from_child(dev, dlc->of_node, NULL);
|
|
if (!IS_ERR(clk))
|
|
simple_dai->sysclk = clk_get_rate(clk);
|
|
}
|
|
|
|
if (of_property_read_bool(node, "system-clock-direction-out"))
|
|
simple_dai->clk_direction = SND_SOC_CLOCK_OUT;
|
|
|
|
return 0;
|
|
}
|
|
EXPORT_SYMBOL_GPL(asoc_simple_parse_clk);
|
|
|
|
static int asoc_simple_check_fixed_sysclk(struct device *dev,
|
|
struct asoc_simple_dai *dai,
|
|
unsigned int *fixed_sysclk)
|
|
{
|
|
if (dai->clk_fixed) {
|
|
if (*fixed_sysclk && *fixed_sysclk != dai->sysclk) {
|
|
dev_err(dev, "inconsistent fixed sysclk rates (%u vs %u)\n",
|
|
*fixed_sysclk, dai->sysclk);
|
|
return -EINVAL;
|
|
}
|
|
*fixed_sysclk = dai->sysclk;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
int asoc_simple_startup(struct snd_pcm_substream *substream)
|
|
{
|
|
struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
|
|
struct asoc_simple_priv *priv = snd_soc_card_get_drvdata(rtd->card);
|
|
struct simple_dai_props *props = simple_priv_to_props(priv, rtd->num);
|
|
struct asoc_simple_dai *dai;
|
|
unsigned int fixed_sysclk = 0;
|
|
int i1, i2, i;
|
|
int ret;
|
|
|
|
for_each_prop_dai_cpu(props, i1, dai) {
|
|
ret = asoc_simple_clk_enable(dai);
|
|
if (ret)
|
|
goto cpu_err;
|
|
ret = asoc_simple_check_fixed_sysclk(rtd->dev, dai, &fixed_sysclk);
|
|
if (ret)
|
|
goto cpu_err;
|
|
}
|
|
|
|
for_each_prop_dai_codec(props, i2, dai) {
|
|
ret = asoc_simple_clk_enable(dai);
|
|
if (ret)
|
|
goto codec_err;
|
|
ret = asoc_simple_check_fixed_sysclk(rtd->dev, dai, &fixed_sysclk);
|
|
if (ret)
|
|
goto codec_err;
|
|
}
|
|
|
|
if (fixed_sysclk && props->mclk_fs) {
|
|
unsigned int fixed_rate = fixed_sysclk / props->mclk_fs;
|
|
|
|
if (fixed_sysclk % props->mclk_fs) {
|
|
dev_err(rtd->dev, "fixed sysclk %u not divisible by mclk_fs %u\n",
|
|
fixed_sysclk, props->mclk_fs);
|
|
ret = -EINVAL;
|
|
goto codec_err;
|
|
}
|
|
ret = snd_pcm_hw_constraint_minmax(substream->runtime, SNDRV_PCM_HW_PARAM_RATE,
|
|
fixed_rate, fixed_rate);
|
|
if (ret < 0)
|
|
goto codec_err;
|
|
}
|
|
|
|
return 0;
|
|
|
|
codec_err:
|
|
for_each_prop_dai_codec(props, i, dai) {
|
|
if (i >= i2)
|
|
break;
|
|
asoc_simple_clk_disable(dai);
|
|
}
|
|
cpu_err:
|
|
for_each_prop_dai_cpu(props, i, dai) {
|
|
if (i >= i1)
|
|
break;
|
|
asoc_simple_clk_disable(dai);
|
|
}
|
|
return ret;
|
|
}
|
|
EXPORT_SYMBOL_GPL(asoc_simple_startup);
|
|
|
|
void asoc_simple_shutdown(struct snd_pcm_substream *substream)
|
|
{
|
|
struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
|
|
struct asoc_simple_priv *priv = snd_soc_card_get_drvdata(rtd->card);
|
|
struct simple_dai_props *props = simple_priv_to_props(priv, rtd->num);
|
|
struct asoc_simple_dai *dai;
|
|
int i;
|
|
|
|
for_each_prop_dai_cpu(props, i, dai) {
|
|
struct snd_soc_dai *cpu_dai = asoc_rtd_to_cpu(rtd, i);
|
|
|
|
if (props->mclk_fs && !dai->clk_fixed && !snd_soc_dai_active(cpu_dai))
|
|
snd_soc_dai_set_sysclk(cpu_dai,
|
|
0, 0, SND_SOC_CLOCK_OUT);
|
|
|
|
asoc_simple_clk_disable(dai);
|
|
}
|
|
for_each_prop_dai_codec(props, i, dai) {
|
|
struct snd_soc_dai *codec_dai = asoc_rtd_to_codec(rtd, i);
|
|
|
|
if (props->mclk_fs && !dai->clk_fixed && !snd_soc_dai_active(codec_dai))
|
|
snd_soc_dai_set_sysclk(codec_dai,
|
|
0, 0, SND_SOC_CLOCK_IN);
|
|
|
|
asoc_simple_clk_disable(dai);
|
|
}
|
|
}
|
|
EXPORT_SYMBOL_GPL(asoc_simple_shutdown);
|
|
|
|
static int asoc_simple_set_clk_rate(struct device *dev,
|
|
struct asoc_simple_dai *simple_dai,
|
|
unsigned long rate)
|
|
{
|
|
if (!simple_dai)
|
|
return 0;
|
|
|
|
if (simple_dai->clk_fixed && rate != simple_dai->sysclk) {
|
|
dev_err(dev, "dai %s invalid clock rate %lu\n", simple_dai->name, rate);
|
|
return -EINVAL;
|
|
}
|
|
|
|
if (!simple_dai->clk)
|
|
return 0;
|
|
|
|
if (clk_get_rate(simple_dai->clk) == rate)
|
|
return 0;
|
|
|
|
return clk_set_rate(simple_dai->clk, rate);
|
|
}
|
|
|
|
static int asoc_simple_set_tdm(struct snd_soc_dai *dai,
|
|
struct asoc_simple_dai *simple_dai,
|
|
struct snd_pcm_hw_params *params)
|
|
{
|
|
int sample_bits = params_width(params);
|
|
int slot_width, slot_count;
|
|
int i, ret;
|
|
|
|
if (!simple_dai || !simple_dai->tdm_width_map)
|
|
return 0;
|
|
|
|
slot_width = simple_dai->slot_width;
|
|
slot_count = simple_dai->slots;
|
|
|
|
if (slot_width == 0)
|
|
slot_width = sample_bits;
|
|
|
|
for (i = 0; i < simple_dai->n_tdm_widths; ++i) {
|
|
if (simple_dai->tdm_width_map[i].sample_bits == sample_bits) {
|
|
slot_width = simple_dai->tdm_width_map[i].slot_width;
|
|
slot_count = simple_dai->tdm_width_map[i].slot_count;
|
|
break;
|
|
}
|
|
}
|
|
|
|
ret = snd_soc_dai_set_tdm_slot(dai,
|
|
simple_dai->tx_slot_mask,
|
|
simple_dai->rx_slot_mask,
|
|
slot_count,
|
|
slot_width);
|
|
if (ret && ret != -ENOTSUPP) {
|
|
dev_err(dai->dev, "simple-card: set_tdm_slot error: %d\n", ret);
|
|
return ret;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
int asoc_simple_hw_params(struct snd_pcm_substream *substream,
|
|
struct snd_pcm_hw_params *params)
|
|
{
|
|
struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
|
|
struct asoc_simple_dai *pdai;
|
|
struct snd_soc_dai *sdai;
|
|
struct asoc_simple_priv *priv = snd_soc_card_get_drvdata(rtd->card);
|
|
struct simple_dai_props *props = simple_priv_to_props(priv, rtd->num);
|
|
unsigned int mclk, mclk_fs = 0;
|
|
int i, ret;
|
|
|
|
if (props->mclk_fs)
|
|
mclk_fs = props->mclk_fs;
|
|
|
|
if (mclk_fs) {
|
|
struct snd_soc_component *component;
|
|
mclk = params_rate(params) * mclk_fs;
|
|
|
|
for_each_prop_dai_codec(props, i, pdai) {
|
|
ret = asoc_simple_set_clk_rate(rtd->dev, pdai, mclk);
|
|
if (ret < 0)
|
|
return ret;
|
|
}
|
|
|
|
for_each_prop_dai_cpu(props, i, pdai) {
|
|
ret = asoc_simple_set_clk_rate(rtd->dev, pdai, mclk);
|
|
if (ret < 0)
|
|
return ret;
|
|
}
|
|
|
|
/* Ensure sysclk is set on all components in case any
|
|
* (such as platform components) are missed by calls to
|
|
* snd_soc_dai_set_sysclk.
|
|
*/
|
|
for_each_rtd_components(rtd, i, component) {
|
|
ret = snd_soc_component_set_sysclk(component, 0, 0,
|
|
mclk, SND_SOC_CLOCK_IN);
|
|
if (ret && ret != -ENOTSUPP)
|
|
return ret;
|
|
}
|
|
|
|
for_each_rtd_codec_dais(rtd, i, sdai) {
|
|
ret = snd_soc_dai_set_sysclk(sdai, 0, mclk, SND_SOC_CLOCK_IN);
|
|
if (ret && ret != -ENOTSUPP)
|
|
return ret;
|
|
}
|
|
|
|
for_each_rtd_cpu_dais(rtd, i, sdai) {
|
|
ret = snd_soc_dai_set_sysclk(sdai, 0, mclk, SND_SOC_CLOCK_OUT);
|
|
if (ret && ret != -ENOTSUPP)
|
|
return ret;
|
|
}
|
|
}
|
|
|
|
for_each_prop_dai_codec(props, i, pdai) {
|
|
sdai = asoc_rtd_to_codec(rtd, i);
|
|
ret = asoc_simple_set_tdm(sdai, pdai, params);
|
|
if (ret < 0)
|
|
return ret;
|
|
}
|
|
|
|
for_each_prop_dai_cpu(props, i, pdai) {
|
|
sdai = asoc_rtd_to_cpu(rtd, i);
|
|
ret = asoc_simple_set_tdm(sdai, pdai, params);
|
|
if (ret < 0)
|
|
return ret;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
EXPORT_SYMBOL_GPL(asoc_simple_hw_params);
|
|
|
|
int asoc_simple_be_hw_params_fixup(struct snd_soc_pcm_runtime *rtd,
|
|
struct snd_pcm_hw_params *params)
|
|
{
|
|
struct asoc_simple_priv *priv = snd_soc_card_get_drvdata(rtd->card);
|
|
struct simple_dai_props *dai_props = simple_priv_to_props(priv, rtd->num);
|
|
struct asoc_simple_data *data = &dai_props->adata;
|
|
struct snd_interval *rate = hw_param_interval(params, SNDRV_PCM_HW_PARAM_RATE);
|
|
struct snd_interval *channels = hw_param_interval(params, SNDRV_PCM_HW_PARAM_CHANNELS);
|
|
|
|
if (data->convert_rate)
|
|
rate->min =
|
|
rate->max = data->convert_rate;
|
|
|
|
if (data->convert_channels)
|
|
channels->min =
|
|
channels->max = data->convert_channels;
|
|
|
|
if (data->convert_sample_format)
|
|
asoc_simple_fixup_sample_fmt(data, params);
|
|
|
|
return 0;
|
|
}
|
|
EXPORT_SYMBOL_GPL(asoc_simple_be_hw_params_fixup);
|
|
|
|
static int asoc_simple_init_dai(struct snd_soc_dai *dai,
|
|
struct asoc_simple_dai *simple_dai)
|
|
{
|
|
int ret;
|
|
|
|
if (!simple_dai)
|
|
return 0;
|
|
|
|
if (simple_dai->sysclk) {
|
|
ret = snd_soc_dai_set_sysclk(dai, 0, simple_dai->sysclk,
|
|
simple_dai->clk_direction);
|
|
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;
|
|
}
|
|
|
|
static inline int asoc_simple_component_is_codec(struct snd_soc_component *component)
|
|
{
|
|
return component->driver->endianness;
|
|
}
|
|
|
|
static int asoc_simple_init_for_codec2codec(struct snd_soc_pcm_runtime *rtd,
|
|
struct simple_dai_props *dai_props)
|
|
{
|
|
struct snd_soc_dai_link *dai_link = rtd->dai_link;
|
|
struct snd_soc_component *component;
|
|
struct snd_soc_pcm_stream *c2c_params;
|
|
struct snd_pcm_hardware hw;
|
|
int i, ret, stream;
|
|
|
|
/* Do nothing if it already has Codec2Codec settings */
|
|
if (dai_link->c2c_params)
|
|
return 0;
|
|
|
|
/* Do nothing if it was DPCM :: BE */
|
|
if (dai_link->no_pcm)
|
|
return 0;
|
|
|
|
/* Only Codecs */
|
|
for_each_rtd_components(rtd, i, component) {
|
|
if (!asoc_simple_component_is_codec(component))
|
|
return 0;
|
|
}
|
|
|
|
/* Assumes the capabilities are the same for all supported streams */
|
|
for_each_pcm_streams(stream) {
|
|
ret = snd_soc_runtime_calc_hw(rtd, &hw, stream);
|
|
if (ret == 0)
|
|
break;
|
|
}
|
|
|
|
if (ret < 0) {
|
|
dev_err(rtd->dev, "simple-card: no valid dai_link params\n");
|
|
return ret;
|
|
}
|
|
|
|
c2c_params = devm_kzalloc(rtd->dev, sizeof(*c2c_params), GFP_KERNEL);
|
|
if (!c2c_params)
|
|
return -ENOMEM;
|
|
|
|
c2c_params->formats = hw.formats;
|
|
c2c_params->rates = hw.rates;
|
|
c2c_params->rate_min = hw.rate_min;
|
|
c2c_params->rate_max = hw.rate_max;
|
|
c2c_params->channels_min = hw.channels_min;
|
|
c2c_params->channels_max = hw.channels_max;
|
|
|
|
dai_link->c2c_params = c2c_params;
|
|
dai_link->num_c2c_params = 1;
|
|
|
|
return 0;
|
|
}
|
|
|
|
int asoc_simple_dai_init(struct snd_soc_pcm_runtime *rtd)
|
|
{
|
|
struct asoc_simple_priv *priv = snd_soc_card_get_drvdata(rtd->card);
|
|
struct simple_dai_props *props = simple_priv_to_props(priv, rtd->num);
|
|
struct asoc_simple_dai *dai;
|
|
int i, ret;
|
|
|
|
for_each_prop_dai_codec(props, i, dai) {
|
|
ret = asoc_simple_init_dai(asoc_rtd_to_codec(rtd, i), dai);
|
|
if (ret < 0)
|
|
return ret;
|
|
}
|
|
for_each_prop_dai_cpu(props, i, dai) {
|
|
ret = asoc_simple_init_dai(asoc_rtd_to_cpu(rtd, i), dai);
|
|
if (ret < 0)
|
|
return ret;
|
|
}
|
|
|
|
ret = asoc_simple_init_for_codec2codec(rtd, props);
|
|
if (ret < 0)
|
|
return ret;
|
|
|
|
return 0;
|
|
}
|
|
EXPORT_SYMBOL_GPL(asoc_simple_dai_init);
|
|
|
|
void asoc_simple_canonicalize_platform(struct snd_soc_dai_link_component *platforms,
|
|
struct snd_soc_dai_link_component *cpus)
|
|
{
|
|
/*
|
|
* Assumes Platform == CPU
|
|
*
|
|
* Some CPU might be using soc-generic-dmaengine-pcm. This means CPU and Platform
|
|
* are different Component, but are sharing same component->dev.
|
|
*
|
|
* Let's assume Platform is same as CPU if it doesn't identify Platform on DT.
|
|
* see
|
|
* simple-card.c :: simple_count_noml()
|
|
*/
|
|
if (!platforms->of_node)
|
|
snd_soc_dlc_use_cpu_as_platform(platforms, cpus);
|
|
}
|
|
EXPORT_SYMBOL_GPL(asoc_simple_canonicalize_platform);
|
|
|
|
void asoc_simple_canonicalize_cpu(struct snd_soc_dai_link_component *cpus,
|
|
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)
|
|
cpus->dai_name = NULL;
|
|
}
|
|
EXPORT_SYMBOL_GPL(asoc_simple_canonicalize_cpu);
|
|
|
|
void asoc_simple_clean_reference(struct snd_soc_card *card)
|
|
{
|
|
struct snd_soc_dai_link *dai_link;
|
|
struct snd_soc_dai_link_component *cpu;
|
|
struct snd_soc_dai_link_component *codec;
|
|
int i, j;
|
|
|
|
for_each_card_prelinks(card, i, dai_link) {
|
|
for_each_link_cpus(dai_link, j, cpu)
|
|
of_node_put(cpu->of_node);
|
|
for_each_link_codecs(dai_link, j, codec)
|
|
of_node_put(codec->of_node);
|
|
}
|
|
}
|
|
EXPORT_SYMBOL_GPL(asoc_simple_clean_reference);
|
|
|
|
int asoc_simple_parse_routing(struct snd_soc_card *card,
|
|
char *prefix)
|
|
{
|
|
struct device_node *node = card->dev->of_node;
|
|
char prop[128];
|
|
|
|
if (!prefix)
|
|
prefix = "";
|
|
|
|
snprintf(prop, sizeof(prop), "%s%s", prefix, "routing");
|
|
|
|
if (!of_property_read_bool(node, prop))
|
|
return 0;
|
|
|
|
return snd_soc_of_parse_audio_routing(card, prop);
|
|
}
|
|
EXPORT_SYMBOL_GPL(asoc_simple_parse_routing);
|
|
|
|
int asoc_simple_parse_widgets(struct snd_soc_card *card,
|
|
char *prefix)
|
|
{
|
|
struct device_node *node = card->dev->of_node;
|
|
char prop[128];
|
|
|
|
if (!prefix)
|
|
prefix = "";
|
|
|
|
snprintf(prop, sizeof(prop), "%s%s", prefix, "widgets");
|
|
|
|
if (of_property_read_bool(node, prop))
|
|
return snd_soc_of_parse_audio_simple_widgets(card, prop);
|
|
|
|
/* no widgets is not error */
|
|
return 0;
|
|
}
|
|
EXPORT_SYMBOL_GPL(asoc_simple_parse_widgets);
|
|
|
|
int asoc_simple_parse_pin_switches(struct snd_soc_card *card,
|
|
char *prefix)
|
|
{
|
|
char prop[128];
|
|
|
|
if (!prefix)
|
|
prefix = "";
|
|
|
|
snprintf(prop, sizeof(prop), "%s%s", prefix, "pin-switches");
|
|
|
|
return snd_soc_of_parse_pin_switches(card, prop);
|
|
}
|
|
EXPORT_SYMBOL_GPL(asoc_simple_parse_pin_switches);
|
|
|
|
int asoc_simple_init_jack(struct snd_soc_card *card,
|
|
struct asoc_simple_jack *sjack,
|
|
int is_hp, char *prefix,
|
|
char *pin)
|
|
{
|
|
struct device *dev = card->dev;
|
|
struct gpio_desc *desc;
|
|
char prop[128];
|
|
char *pin_name;
|
|
char *gpio_name;
|
|
int mask;
|
|
int error;
|
|
|
|
if (!prefix)
|
|
prefix = "";
|
|
|
|
sjack->gpio.gpio = -ENOENT;
|
|
|
|
if (is_hp) {
|
|
snprintf(prop, sizeof(prop), "%shp-det", prefix);
|
|
pin_name = pin ? pin : "Headphones";
|
|
gpio_name = "Headphone detection";
|
|
mask = SND_JACK_HEADPHONE;
|
|
} else {
|
|
snprintf(prop, sizeof(prop), "%smic-det", prefix);
|
|
pin_name = pin ? pin : "Mic Jack";
|
|
gpio_name = "Mic detection";
|
|
mask = SND_JACK_MICROPHONE;
|
|
}
|
|
|
|
desc = gpiod_get_optional(dev, prop, GPIOD_IN);
|
|
error = PTR_ERR_OR_ZERO(desc);
|
|
if (error)
|
|
return error;
|
|
|
|
if (desc) {
|
|
error = gpiod_set_consumer_name(desc, gpio_name);
|
|
if (error)
|
|
return error;
|
|
|
|
sjack->pin.pin = pin_name;
|
|
sjack->pin.mask = mask;
|
|
|
|
sjack->gpio.name = gpio_name;
|
|
sjack->gpio.report = mask;
|
|
sjack->gpio.desc = desc;
|
|
sjack->gpio.debounce_time = 150;
|
|
|
|
snd_soc_card_jack_new_pins(card, pin_name, mask, &sjack->jack,
|
|
&sjack->pin, 1);
|
|
|
|
snd_soc_jack_add_gpios(&sjack->jack, 1, &sjack->gpio);
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
EXPORT_SYMBOL_GPL(asoc_simple_init_jack);
|
|
|
|
int asoc_simple_init_aux_jacks(struct asoc_simple_priv *priv, char *prefix)
|
|
{
|
|
struct snd_soc_card *card = simple_priv_to_card(priv);
|
|
struct snd_soc_component *component;
|
|
int found_jack_index = 0;
|
|
int type = 0;
|
|
int num = 0;
|
|
int ret;
|
|
|
|
if (priv->aux_jacks)
|
|
return 0;
|
|
|
|
for_each_card_auxs(card, component) {
|
|
type = snd_soc_component_get_jack_type(component);
|
|
if (type > 0)
|
|
num++;
|
|
}
|
|
if (num < 1)
|
|
return 0;
|
|
|
|
priv->aux_jacks = devm_kcalloc(card->dev, num,
|
|
sizeof(struct snd_soc_jack), GFP_KERNEL);
|
|
if (!priv->aux_jacks)
|
|
return -ENOMEM;
|
|
|
|
for_each_card_auxs(card, component) {
|
|
char id[128];
|
|
struct snd_soc_jack *jack;
|
|
|
|
if (found_jack_index >= num)
|
|
break;
|
|
|
|
type = snd_soc_component_get_jack_type(component);
|
|
if (type <= 0)
|
|
continue;
|
|
|
|
/* create jack */
|
|
jack = &(priv->aux_jacks[found_jack_index++]);
|
|
snprintf(id, sizeof(id), "%s-jack", component->name);
|
|
ret = snd_soc_card_jack_new(card, id, type, jack);
|
|
if (ret)
|
|
continue;
|
|
|
|
(void)snd_soc_component_set_jack(component, jack, NULL);
|
|
}
|
|
return 0;
|
|
}
|
|
EXPORT_SYMBOL_GPL(asoc_simple_init_aux_jacks);
|
|
|
|
int asoc_simple_init_priv(struct asoc_simple_priv *priv,
|
|
struct link_info *li)
|
|
{
|
|
struct snd_soc_card *card = simple_priv_to_card(priv);
|
|
struct device *dev = simple_priv_to_dev(priv);
|
|
struct snd_soc_dai_link *dai_link;
|
|
struct simple_dai_props *dai_props;
|
|
struct asoc_simple_dai *dais;
|
|
struct snd_soc_dai_link_component *dlcs;
|
|
struct snd_soc_codec_conf *cconf = NULL;
|
|
int i, dai_num = 0, dlc_num = 0, cnf_num = 0;
|
|
|
|
dai_props = devm_kcalloc(dev, li->link, sizeof(*dai_props), GFP_KERNEL);
|
|
dai_link = devm_kcalloc(dev, li->link, sizeof(*dai_link), GFP_KERNEL);
|
|
if (!dai_props || !dai_link)
|
|
return -ENOMEM;
|
|
|
|
/*
|
|
* dais (= CPU+Codec)
|
|
* dlcs (= CPU+Codec+Platform)
|
|
*/
|
|
for (i = 0; i < li->link; i++) {
|
|
int cc = li->num[i].cpus + li->num[i].codecs;
|
|
|
|
dai_num += cc;
|
|
dlc_num += cc + li->num[i].platforms;
|
|
|
|
if (!li->num[i].cpus)
|
|
cnf_num += li->num[i].codecs;
|
|
}
|
|
|
|
dais = devm_kcalloc(dev, dai_num, sizeof(*dais), GFP_KERNEL);
|
|
dlcs = devm_kcalloc(dev, dlc_num, sizeof(*dlcs), GFP_KERNEL);
|
|
if (!dais || !dlcs)
|
|
return -ENOMEM;
|
|
|
|
if (cnf_num) {
|
|
cconf = devm_kcalloc(dev, cnf_num, sizeof(*cconf), GFP_KERNEL);
|
|
if (!cconf)
|
|
return -ENOMEM;
|
|
}
|
|
|
|
dev_dbg(dev, "link %d, dais %d, ccnf %d\n",
|
|
li->link, dai_num, cnf_num);
|
|
|
|
priv->dai_props = dai_props;
|
|
priv->dai_link = dai_link;
|
|
priv->dais = dais;
|
|
priv->dlcs = dlcs;
|
|
priv->codec_conf = cconf;
|
|
|
|
card->dai_link = priv->dai_link;
|
|
card->num_links = li->link;
|
|
card->codec_conf = cconf;
|
|
card->num_configs = cnf_num;
|
|
|
|
for (i = 0; i < li->link; i++) {
|
|
if (li->num[i].cpus) {
|
|
/* Normal CPU */
|
|
dai_link[i].cpus = dlcs;
|
|
dai_props[i].num.cpus =
|
|
dai_link[i].num_cpus = li->num[i].cpus;
|
|
dai_props[i].cpu_dai = dais;
|
|
|
|
dlcs += li->num[i].cpus;
|
|
dais += li->num[i].cpus;
|
|
} else {
|
|
/* DPCM Be's CPU = dummy */
|
|
dai_link[i].cpus = &asoc_dummy_dlc;
|
|
dai_props[i].num.cpus =
|
|
dai_link[i].num_cpus = 1;
|
|
}
|
|
|
|
if (li->num[i].codecs) {
|
|
/* Normal Codec */
|
|
dai_link[i].codecs = dlcs;
|
|
dai_props[i].num.codecs =
|
|
dai_link[i].num_codecs = li->num[i].codecs;
|
|
dai_props[i].codec_dai = dais;
|
|
|
|
dlcs += li->num[i].codecs;
|
|
dais += li->num[i].codecs;
|
|
|
|
if (!li->num[i].cpus) {
|
|
/* DPCM Be's Codec */
|
|
dai_props[i].codec_conf = cconf;
|
|
cconf += li->num[i].codecs;
|
|
}
|
|
} else {
|
|
/* DPCM Fe's Codec = dummy */
|
|
dai_link[i].codecs = &asoc_dummy_dlc;
|
|
dai_props[i].num.codecs =
|
|
dai_link[i].num_codecs = 1;
|
|
}
|
|
|
|
if (li->num[i].platforms) {
|
|
/* Have Platform */
|
|
dai_link[i].platforms = dlcs;
|
|
dai_props[i].num.platforms =
|
|
dai_link[i].num_platforms = li->num[i].platforms;
|
|
|
|
dlcs += li->num[i].platforms;
|
|
} else {
|
|
/* Doesn't have Platform */
|
|
dai_link[i].platforms = NULL;
|
|
dai_props[i].num.platforms =
|
|
dai_link[i].num_platforms = 0;
|
|
}
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
EXPORT_SYMBOL_GPL(asoc_simple_init_priv);
|
|
|
|
int asoc_simple_remove(struct platform_device *pdev)
|
|
{
|
|
struct snd_soc_card *card = platform_get_drvdata(pdev);
|
|
|
|
asoc_simple_clean_reference(card);
|
|
|
|
return 0;
|
|
}
|
|
EXPORT_SYMBOL_GPL(asoc_simple_remove);
|
|
|
|
int asoc_graph_card_probe(struct snd_soc_card *card)
|
|
{
|
|
struct asoc_simple_priv *priv = snd_soc_card_get_drvdata(card);
|
|
int ret;
|
|
|
|
ret = asoc_simple_init_hp(card, &priv->hp_jack, NULL);
|
|
if (ret < 0)
|
|
return ret;
|
|
|
|
ret = asoc_simple_init_mic(card, &priv->mic_jack, NULL);
|
|
if (ret < 0)
|
|
return ret;
|
|
|
|
return 0;
|
|
}
|
|
EXPORT_SYMBOL_GPL(asoc_graph_card_probe);
|
|
|
|
int asoc_graph_is_ports0(struct device_node *np)
|
|
{
|
|
struct device_node *port, *ports, *ports0, *top;
|
|
int ret;
|
|
|
|
/* np is "endpoint" or "port" */
|
|
if (of_node_name_eq(np, "endpoint")) {
|
|
port = of_get_parent(np);
|
|
} else {
|
|
port = np;
|
|
of_node_get(port);
|
|
}
|
|
|
|
ports = of_get_parent(port);
|
|
top = of_get_parent(ports);
|
|
ports0 = of_get_child_by_name(top, "ports");
|
|
|
|
ret = ports0 == ports;
|
|
|
|
of_node_put(port);
|
|
of_node_put(ports);
|
|
of_node_put(ports0);
|
|
of_node_put(top);
|
|
|
|
return ret;
|
|
}
|
|
EXPORT_SYMBOL_GPL(asoc_graph_is_ports0);
|
|
|
|
static int graph_get_dai_id(struct device_node *ep)
|
|
{
|
|
struct device_node *node;
|
|
struct device_node *endpoint;
|
|
struct of_endpoint info;
|
|
int i, id;
|
|
int ret;
|
|
|
|
/* use driver specified DAI ID if exist */
|
|
ret = snd_soc_get_dai_id(ep);
|
|
if (ret != -ENOTSUPP)
|
|
return ret;
|
|
|
|
/* use endpoint/port reg if exist */
|
|
ret = of_graph_parse_endpoint(ep, &info);
|
|
if (ret == 0) {
|
|
/*
|
|
* Because it will count port/endpoint if it doesn't have "reg".
|
|
* But, we can't judge whether it has "no reg", or "reg = <0>"
|
|
* only of_graph_parse_endpoint().
|
|
* We need to check "reg" property
|
|
*/
|
|
if (of_property_present(ep, "reg"))
|
|
return info.id;
|
|
|
|
node = of_get_parent(ep);
|
|
ret = of_property_present(node, "reg");
|
|
of_node_put(node);
|
|
if (ret)
|
|
return info.port;
|
|
}
|
|
node = of_graph_get_port_parent(ep);
|
|
|
|
/*
|
|
* Non HDMI sound case, counting port/endpoint on its DT
|
|
* is enough. Let's count it.
|
|
*/
|
|
i = 0;
|
|
id = -1;
|
|
for_each_endpoint_of_node(node, endpoint) {
|
|
if (endpoint == ep)
|
|
id = i;
|
|
i++;
|
|
}
|
|
|
|
of_node_put(node);
|
|
|
|
if (id < 0)
|
|
return -ENODEV;
|
|
|
|
return id;
|
|
}
|
|
|
|
int asoc_graph_parse_dai(struct device *dev, struct device_node *ep,
|
|
struct snd_soc_dai_link_component *dlc, int *is_single_link)
|
|
{
|
|
struct device_node *node;
|
|
struct of_phandle_args args = {};
|
|
struct snd_soc_dai *dai;
|
|
int ret;
|
|
|
|
if (!ep)
|
|
return 0;
|
|
|
|
node = of_graph_get_port_parent(ep);
|
|
|
|
/*
|
|
* Try to find from DAI node
|
|
*/
|
|
args.np = ep;
|
|
dai = snd_soc_get_dai_via_args(&args);
|
|
if (dai) {
|
|
dlc->dai_name = snd_soc_dai_name_get(dai);
|
|
dlc->dai_args = snd_soc_copy_dai_args(dev, &args);
|
|
if (!dlc->dai_args)
|
|
return -ENOMEM;
|
|
|
|
goto parse_dai_end;
|
|
}
|
|
|
|
/* Get dai->name */
|
|
args.np = node;
|
|
args.args[0] = graph_get_dai_id(ep);
|
|
args.args_count = (of_graph_get_endpoint_count(node) > 1);
|
|
|
|
/*
|
|
* FIXME
|
|
*
|
|
* Here, dlc->dai_name is pointer to CPU/Codec DAI name.
|
|
* If user unbinded CPU or Codec driver, but not for Sound Card,
|
|
* dlc->dai_name is keeping unbinded CPU or Codec
|
|
* driver's pointer.
|
|
*
|
|
* If user re-bind CPU or Codec driver again, ALSA SoC will try
|
|
* to rebind Card via snd_soc_try_rebind_card(), but because of
|
|
* above reason, it might can't bind Sound Card.
|
|
* Because Sound Card is pointing to released dai_name pointer.
|
|
*
|
|
* To avoid this rebind Card issue,
|
|
* 1) It needs to alloc memory to keep dai_name eventhough
|
|
* CPU or Codec driver was unbinded, or
|
|
* 2) user need to rebind Sound Card everytime
|
|
* if he unbinded CPU or Codec.
|
|
*/
|
|
ret = snd_soc_get_dlc(&args, dlc);
|
|
if (ret < 0) {
|
|
of_node_put(node);
|
|
return ret;
|
|
}
|
|
|
|
parse_dai_end:
|
|
if (is_single_link)
|
|
*is_single_link = of_graph_get_endpoint_count(node) == 1;
|
|
|
|
return 0;
|
|
}
|
|
EXPORT_SYMBOL_GPL(asoc_graph_parse_dai);
|
|
|
|
/* Module information */
|
|
MODULE_AUTHOR("Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>");
|
|
MODULE_DESCRIPTION("ALSA SoC Simple Card Utils");
|
|
MODULE_LICENSE("GPL v2");
|