mirror of
https://mirrors.bfsu.edu.cn/git/linux.git
synced 2024-12-15 15:04:27 +08:00
42cfb412e2
The symbols 'dummy_dma_ops' is declared with different data types by
sound/soc/soc-utils.c and arch/arm64/include/asm/dma-mapping.h. This
leads to conflicts when soc-utils.c (indirectly) includes dma-mapping.h:
sound/soc/soc-utils.c:282:33: error: conflicting types for 'dummy_dma_ops'
static const struct snd_pcm_ops dummy_dma_ops = {
^
...
arch/arm64/include/asm/dma-mapping.h:27:33: note: previous declaration of 'dummy_dma_ops' was here
extern const struct dma_map_ops dummy_dma_ops;
^
Rename the symbol in soc-utils.c to 'snd_dummy_dma_ops' to avoid the
conflict.
Signed-off-by: Matthias Kaehlcke <mka@chromium.org>
Signed-off-by: Mark Brown <broonie@kernel.org>
381 lines
9.1 KiB
C
381 lines
9.1 KiB
C
// SPDX-License-Identifier: GPL-2.0+
|
|
//
|
|
// soc-util.c -- ALSA SoC Audio Layer utility functions
|
|
//
|
|
// Copyright 2009 Wolfson Microelectronics PLC.
|
|
//
|
|
// Author: Mark Brown <broonie@opensource.wolfsonmicro.com>
|
|
// Liam Girdwood <lrg@slimlogic.co.uk>
|
|
|
|
#include <linux/platform_device.h>
|
|
#include <linux/export.h>
|
|
#include <sound/core.h>
|
|
#include <sound/pcm.h>
|
|
#include <sound/pcm_params.h>
|
|
#include <sound/soc.h>
|
|
|
|
int snd_soc_calc_frame_size(int sample_size, int channels, int tdm_slots)
|
|
{
|
|
return sample_size * channels * tdm_slots;
|
|
}
|
|
EXPORT_SYMBOL_GPL(snd_soc_calc_frame_size);
|
|
|
|
int snd_soc_params_to_frame_size(struct snd_pcm_hw_params *params)
|
|
{
|
|
int sample_size;
|
|
|
|
sample_size = snd_pcm_format_width(params_format(params));
|
|
if (sample_size < 0)
|
|
return sample_size;
|
|
|
|
return snd_soc_calc_frame_size(sample_size, params_channels(params),
|
|
1);
|
|
}
|
|
EXPORT_SYMBOL_GPL(snd_soc_params_to_frame_size);
|
|
|
|
int snd_soc_calc_bclk(int fs, int sample_size, int channels, int tdm_slots)
|
|
{
|
|
return fs * snd_soc_calc_frame_size(sample_size, channels, tdm_slots);
|
|
}
|
|
EXPORT_SYMBOL_GPL(snd_soc_calc_bclk);
|
|
|
|
int snd_soc_params_to_bclk(struct snd_pcm_hw_params *params)
|
|
{
|
|
int ret;
|
|
|
|
ret = snd_soc_params_to_frame_size(params);
|
|
|
|
if (ret > 0)
|
|
return ret * params_rate(params);
|
|
else
|
|
return ret;
|
|
}
|
|
EXPORT_SYMBOL_GPL(snd_soc_params_to_bclk);
|
|
|
|
int snd_soc_component_enable_pin(struct snd_soc_component *component,
|
|
const char *pin)
|
|
{
|
|
struct snd_soc_dapm_context *dapm =
|
|
snd_soc_component_get_dapm(component);
|
|
char *full_name;
|
|
int ret;
|
|
|
|
if (!component->name_prefix)
|
|
return snd_soc_dapm_enable_pin(dapm, pin);
|
|
|
|
full_name = kasprintf(GFP_KERNEL, "%s %s", component->name_prefix, pin);
|
|
if (!full_name)
|
|
return -ENOMEM;
|
|
|
|
ret = snd_soc_dapm_enable_pin(dapm, full_name);
|
|
kfree(full_name);
|
|
|
|
return ret;
|
|
}
|
|
EXPORT_SYMBOL_GPL(snd_soc_component_enable_pin);
|
|
|
|
int snd_soc_component_enable_pin_unlocked(struct snd_soc_component *component,
|
|
const char *pin)
|
|
{
|
|
struct snd_soc_dapm_context *dapm =
|
|
snd_soc_component_get_dapm(component);
|
|
char *full_name;
|
|
int ret;
|
|
|
|
if (!component->name_prefix)
|
|
return snd_soc_dapm_enable_pin_unlocked(dapm, pin);
|
|
|
|
full_name = kasprintf(GFP_KERNEL, "%s %s", component->name_prefix, pin);
|
|
if (!full_name)
|
|
return -ENOMEM;
|
|
|
|
ret = snd_soc_dapm_enable_pin_unlocked(dapm, full_name);
|
|
kfree(full_name);
|
|
|
|
return ret;
|
|
}
|
|
EXPORT_SYMBOL_GPL(snd_soc_component_enable_pin_unlocked);
|
|
|
|
int snd_soc_component_disable_pin(struct snd_soc_component *component,
|
|
const char *pin)
|
|
{
|
|
struct snd_soc_dapm_context *dapm =
|
|
snd_soc_component_get_dapm(component);
|
|
char *full_name;
|
|
int ret;
|
|
|
|
if (!component->name_prefix)
|
|
return snd_soc_dapm_disable_pin(dapm, pin);
|
|
|
|
full_name = kasprintf(GFP_KERNEL, "%s %s", component->name_prefix, pin);
|
|
if (!full_name)
|
|
return -ENOMEM;
|
|
|
|
ret = snd_soc_dapm_disable_pin(dapm, full_name);
|
|
kfree(full_name);
|
|
|
|
return ret;
|
|
}
|
|
EXPORT_SYMBOL_GPL(snd_soc_component_disable_pin);
|
|
|
|
int snd_soc_component_disable_pin_unlocked(struct snd_soc_component *component,
|
|
const char *pin)
|
|
{
|
|
struct snd_soc_dapm_context *dapm =
|
|
snd_soc_component_get_dapm(component);
|
|
char *full_name;
|
|
int ret;
|
|
|
|
if (!component->name_prefix)
|
|
return snd_soc_dapm_disable_pin_unlocked(dapm, pin);
|
|
|
|
full_name = kasprintf(GFP_KERNEL, "%s %s", component->name_prefix, pin);
|
|
if (!full_name)
|
|
return -ENOMEM;
|
|
|
|
ret = snd_soc_dapm_disable_pin_unlocked(dapm, full_name);
|
|
kfree(full_name);
|
|
|
|
return ret;
|
|
}
|
|
EXPORT_SYMBOL_GPL(snd_soc_component_disable_pin_unlocked);
|
|
|
|
int snd_soc_component_nc_pin(struct snd_soc_component *component,
|
|
const char *pin)
|
|
{
|
|
struct snd_soc_dapm_context *dapm =
|
|
snd_soc_component_get_dapm(component);
|
|
char *full_name;
|
|
int ret;
|
|
|
|
if (!component->name_prefix)
|
|
return snd_soc_dapm_nc_pin(dapm, pin);
|
|
|
|
full_name = kasprintf(GFP_KERNEL, "%s %s", component->name_prefix, pin);
|
|
if (!full_name)
|
|
return -ENOMEM;
|
|
|
|
ret = snd_soc_dapm_nc_pin(dapm, full_name);
|
|
kfree(full_name);
|
|
|
|
return ret;
|
|
}
|
|
EXPORT_SYMBOL_GPL(snd_soc_component_nc_pin);
|
|
|
|
int snd_soc_component_nc_pin_unlocked(struct snd_soc_component *component,
|
|
const char *pin)
|
|
{
|
|
struct snd_soc_dapm_context *dapm =
|
|
snd_soc_component_get_dapm(component);
|
|
char *full_name;
|
|
int ret;
|
|
|
|
if (!component->name_prefix)
|
|
return snd_soc_dapm_nc_pin_unlocked(dapm, pin);
|
|
|
|
full_name = kasprintf(GFP_KERNEL, "%s %s", component->name_prefix, pin);
|
|
if (!full_name)
|
|
return -ENOMEM;
|
|
|
|
ret = snd_soc_dapm_nc_pin_unlocked(dapm, full_name);
|
|
kfree(full_name);
|
|
|
|
return ret;
|
|
}
|
|
EXPORT_SYMBOL_GPL(snd_soc_component_nc_pin_unlocked);
|
|
|
|
int snd_soc_component_get_pin_status(struct snd_soc_component *component,
|
|
const char *pin)
|
|
{
|
|
struct snd_soc_dapm_context *dapm =
|
|
snd_soc_component_get_dapm(component);
|
|
char *full_name;
|
|
int ret;
|
|
|
|
if (!component->name_prefix)
|
|
return snd_soc_dapm_get_pin_status(dapm, pin);
|
|
|
|
full_name = kasprintf(GFP_KERNEL, "%s %s", component->name_prefix, pin);
|
|
if (!full_name)
|
|
return -ENOMEM;
|
|
|
|
ret = snd_soc_dapm_get_pin_status(dapm, full_name);
|
|
kfree(full_name);
|
|
|
|
return ret;
|
|
}
|
|
EXPORT_SYMBOL_GPL(snd_soc_component_get_pin_status);
|
|
|
|
int snd_soc_component_force_enable_pin(struct snd_soc_component *component,
|
|
const char *pin)
|
|
{
|
|
struct snd_soc_dapm_context *dapm =
|
|
snd_soc_component_get_dapm(component);
|
|
char *full_name;
|
|
int ret;
|
|
|
|
if (!component->name_prefix)
|
|
return snd_soc_dapm_force_enable_pin(dapm, pin);
|
|
|
|
full_name = kasprintf(GFP_KERNEL, "%s %s", component->name_prefix, pin);
|
|
if (!full_name)
|
|
return -ENOMEM;
|
|
|
|
ret = snd_soc_dapm_force_enable_pin(dapm, full_name);
|
|
kfree(full_name);
|
|
|
|
return ret;
|
|
}
|
|
EXPORT_SYMBOL_GPL(snd_soc_component_force_enable_pin);
|
|
|
|
int snd_soc_component_force_enable_pin_unlocked(
|
|
struct snd_soc_component *component,
|
|
const char *pin)
|
|
{
|
|
struct snd_soc_dapm_context *dapm =
|
|
snd_soc_component_get_dapm(component);
|
|
char *full_name;
|
|
int ret;
|
|
|
|
if (!component->name_prefix)
|
|
return snd_soc_dapm_force_enable_pin_unlocked(dapm, pin);
|
|
|
|
full_name = kasprintf(GFP_KERNEL, "%s %s", component->name_prefix, pin);
|
|
if (!full_name)
|
|
return -ENOMEM;
|
|
|
|
ret = snd_soc_dapm_force_enable_pin_unlocked(dapm, full_name);
|
|
kfree(full_name);
|
|
|
|
return ret;
|
|
}
|
|
EXPORT_SYMBOL_GPL(snd_soc_component_force_enable_pin_unlocked);
|
|
|
|
static const struct snd_pcm_hardware dummy_dma_hardware = {
|
|
/* Random values to keep userspace happy when checking constraints */
|
|
.info = SNDRV_PCM_INFO_INTERLEAVED |
|
|
SNDRV_PCM_INFO_BLOCK_TRANSFER,
|
|
.buffer_bytes_max = 128*1024,
|
|
.period_bytes_min = PAGE_SIZE,
|
|
.period_bytes_max = PAGE_SIZE*2,
|
|
.periods_min = 2,
|
|
.periods_max = 128,
|
|
};
|
|
|
|
static int dummy_dma_open(struct snd_pcm_substream *substream)
|
|
{
|
|
struct snd_soc_pcm_runtime *rtd = substream->private_data;
|
|
|
|
/* BE's dont need dummy params */
|
|
if (!rtd->dai_link->no_pcm)
|
|
snd_soc_set_runtime_hwparams(substream, &dummy_dma_hardware);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static const struct snd_pcm_ops snd_dummy_dma_ops = {
|
|
.open = dummy_dma_open,
|
|
.ioctl = snd_pcm_lib_ioctl,
|
|
};
|
|
|
|
static const struct snd_soc_component_driver dummy_platform = {
|
|
.ops = &snd_dummy_dma_ops,
|
|
};
|
|
|
|
static const struct snd_soc_component_driver dummy_codec = {
|
|
.idle_bias_on = 1,
|
|
.use_pmdown_time = 1,
|
|
.endianness = 1,
|
|
.non_legacy_dai_naming = 1,
|
|
};
|
|
|
|
#define STUB_RATES SNDRV_PCM_RATE_8000_192000
|
|
#define STUB_FORMATS (SNDRV_PCM_FMTBIT_S8 | \
|
|
SNDRV_PCM_FMTBIT_U8 | \
|
|
SNDRV_PCM_FMTBIT_S16_LE | \
|
|
SNDRV_PCM_FMTBIT_U16_LE | \
|
|
SNDRV_PCM_FMTBIT_S24_LE | \
|
|
SNDRV_PCM_FMTBIT_U24_LE | \
|
|
SNDRV_PCM_FMTBIT_S32_LE | \
|
|
SNDRV_PCM_FMTBIT_U32_LE | \
|
|
SNDRV_PCM_FMTBIT_IEC958_SUBFRAME_LE)
|
|
/*
|
|
* The dummy CODEC is only meant to be used in situations where there is no
|
|
* actual hardware.
|
|
*
|
|
* If there is actual hardware even if it does not have a control bus
|
|
* the hardware will still have constraints like supported samplerates, etc.
|
|
* which should be modelled. And the data flow graph also should be modelled
|
|
* using DAPM.
|
|
*/
|
|
static struct snd_soc_dai_driver dummy_dai = {
|
|
.name = "snd-soc-dummy-dai",
|
|
.playback = {
|
|
.stream_name = "Playback",
|
|
.channels_min = 1,
|
|
.channels_max = 384,
|
|
.rates = STUB_RATES,
|
|
.formats = STUB_FORMATS,
|
|
},
|
|
.capture = {
|
|
.stream_name = "Capture",
|
|
.channels_min = 1,
|
|
.channels_max = 384,
|
|
.rates = STUB_RATES,
|
|
.formats = STUB_FORMATS,
|
|
},
|
|
};
|
|
|
|
int snd_soc_dai_is_dummy(struct snd_soc_dai *dai)
|
|
{
|
|
if (dai->driver == &dummy_dai)
|
|
return 1;
|
|
return 0;
|
|
}
|
|
|
|
static int snd_soc_dummy_probe(struct platform_device *pdev)
|
|
{
|
|
int ret;
|
|
|
|
ret = devm_snd_soc_register_component(&pdev->dev,
|
|
&dummy_codec, &dummy_dai, 1);
|
|
if (ret < 0)
|
|
return ret;
|
|
|
|
ret = devm_snd_soc_register_component(&pdev->dev, &dummy_platform,
|
|
NULL, 0);
|
|
|
|
return ret;
|
|
}
|
|
|
|
static struct platform_driver soc_dummy_driver = {
|
|
.driver = {
|
|
.name = "snd-soc-dummy",
|
|
},
|
|
.probe = snd_soc_dummy_probe,
|
|
};
|
|
|
|
static struct platform_device *soc_dummy_dev;
|
|
|
|
int __init snd_soc_util_init(void)
|
|
{
|
|
int ret;
|
|
|
|
soc_dummy_dev =
|
|
platform_device_register_simple("snd-soc-dummy", -1, NULL, 0);
|
|
if (IS_ERR(soc_dummy_dev))
|
|
return PTR_ERR(soc_dummy_dev);
|
|
|
|
ret = platform_driver_register(&soc_dummy_driver);
|
|
if (ret != 0)
|
|
platform_device_unregister(soc_dummy_dev);
|
|
|
|
return ret;
|
|
}
|
|
|
|
void __exit snd_soc_util_exit(void)
|
|
{
|
|
platform_driver_unregister(&soc_dummy_driver);
|
|
platform_device_unregister(soc_dummy_dev);
|
|
}
|