64ee5067cf
ALSA SoC used 2 type of Platform if sound card doesn't need Platform. 1) use Dummy Platform as Platform component 2) use CPU component as Platform component Now, ALSA SoC allows "no Platform" settings, and it will behave same as 2) case selection. And, all sound card which doesn't need specific Platform are now not selecting Platform any more. This means, no sound card is using dummy Platform on ALSA SoC any more. This patch removes unused dummy Platform. Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> Signed-off-by: Mark Brown <broonie@kernel.org>
356 lines
8.5 KiB
C
356 lines
8.5 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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//
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// soc-util.c -- ALSA SoC Audio Layer utility functions
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//
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// Copyright 2009 Wolfson Microelectronics PLC.
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//
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// Author: Mark Brown <broonie@opensource.wolfsonmicro.com>
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// Liam Girdwood <lrg@slimlogic.co.uk>
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#include <linux/platform_device.h>
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#include <linux/export.h>
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#include <sound/core.h>
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#include <sound/pcm.h>
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#include <sound/pcm_params.h>
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#include <sound/soc.h>
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int snd_soc_calc_frame_size(int sample_size, int channels, int tdm_slots)
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{
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return sample_size * channels * tdm_slots;
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}
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EXPORT_SYMBOL_GPL(snd_soc_calc_frame_size);
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int snd_soc_params_to_frame_size(struct snd_pcm_hw_params *params)
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{
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int sample_size;
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sample_size = snd_pcm_format_width(params_format(params));
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if (sample_size < 0)
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return sample_size;
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return snd_soc_calc_frame_size(sample_size, params_channels(params),
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1);
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}
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EXPORT_SYMBOL_GPL(snd_soc_params_to_frame_size);
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int snd_soc_calc_bclk(int fs, int sample_size, int channels, int tdm_slots)
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{
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return fs * snd_soc_calc_frame_size(sample_size, channels, tdm_slots);
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}
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EXPORT_SYMBOL_GPL(snd_soc_calc_bclk);
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int snd_soc_params_to_bclk(struct snd_pcm_hw_params *params)
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{
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int ret;
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ret = snd_soc_params_to_frame_size(params);
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if (ret > 0)
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return ret * params_rate(params);
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else
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return ret;
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}
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EXPORT_SYMBOL_GPL(snd_soc_params_to_bclk);
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int snd_soc_component_enable_pin(struct snd_soc_component *component,
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const char *pin)
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{
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struct snd_soc_dapm_context *dapm =
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snd_soc_component_get_dapm(component);
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char *full_name;
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int ret;
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if (!component->name_prefix)
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return snd_soc_dapm_enable_pin(dapm, pin);
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full_name = kasprintf(GFP_KERNEL, "%s %s", component->name_prefix, pin);
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if (!full_name)
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return -ENOMEM;
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ret = snd_soc_dapm_enable_pin(dapm, full_name);
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kfree(full_name);
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return ret;
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}
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EXPORT_SYMBOL_GPL(snd_soc_component_enable_pin);
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int snd_soc_component_enable_pin_unlocked(struct snd_soc_component *component,
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const char *pin)
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{
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struct snd_soc_dapm_context *dapm =
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snd_soc_component_get_dapm(component);
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char *full_name;
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int ret;
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if (!component->name_prefix)
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return snd_soc_dapm_enable_pin_unlocked(dapm, pin);
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full_name = kasprintf(GFP_KERNEL, "%s %s", component->name_prefix, pin);
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if (!full_name)
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return -ENOMEM;
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ret = snd_soc_dapm_enable_pin_unlocked(dapm, full_name);
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kfree(full_name);
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return ret;
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}
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EXPORT_SYMBOL_GPL(snd_soc_component_enable_pin_unlocked);
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int snd_soc_component_disable_pin(struct snd_soc_component *component,
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const char *pin)
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{
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struct snd_soc_dapm_context *dapm =
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snd_soc_component_get_dapm(component);
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char *full_name;
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int ret;
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if (!component->name_prefix)
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return snd_soc_dapm_disable_pin(dapm, pin);
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full_name = kasprintf(GFP_KERNEL, "%s %s", component->name_prefix, pin);
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if (!full_name)
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return -ENOMEM;
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ret = snd_soc_dapm_disable_pin(dapm, full_name);
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kfree(full_name);
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return ret;
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}
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EXPORT_SYMBOL_GPL(snd_soc_component_disable_pin);
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int snd_soc_component_disable_pin_unlocked(struct snd_soc_component *component,
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const char *pin)
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{
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struct snd_soc_dapm_context *dapm =
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snd_soc_component_get_dapm(component);
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char *full_name;
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int ret;
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if (!component->name_prefix)
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return snd_soc_dapm_disable_pin_unlocked(dapm, pin);
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full_name = kasprintf(GFP_KERNEL, "%s %s", component->name_prefix, pin);
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if (!full_name)
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return -ENOMEM;
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ret = snd_soc_dapm_disable_pin_unlocked(dapm, full_name);
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kfree(full_name);
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return ret;
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}
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EXPORT_SYMBOL_GPL(snd_soc_component_disable_pin_unlocked);
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int snd_soc_component_nc_pin(struct snd_soc_component *component,
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const char *pin)
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{
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struct snd_soc_dapm_context *dapm =
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snd_soc_component_get_dapm(component);
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char *full_name;
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int ret;
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if (!component->name_prefix)
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return snd_soc_dapm_nc_pin(dapm, pin);
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full_name = kasprintf(GFP_KERNEL, "%s %s", component->name_prefix, pin);
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if (!full_name)
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return -ENOMEM;
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ret = snd_soc_dapm_nc_pin(dapm, full_name);
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kfree(full_name);
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return ret;
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}
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EXPORT_SYMBOL_GPL(snd_soc_component_nc_pin);
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int snd_soc_component_nc_pin_unlocked(struct snd_soc_component *component,
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const char *pin)
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{
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struct snd_soc_dapm_context *dapm =
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snd_soc_component_get_dapm(component);
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char *full_name;
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int ret;
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if (!component->name_prefix)
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return snd_soc_dapm_nc_pin_unlocked(dapm, pin);
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full_name = kasprintf(GFP_KERNEL, "%s %s", component->name_prefix, pin);
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if (!full_name)
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return -ENOMEM;
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ret = snd_soc_dapm_nc_pin_unlocked(dapm, full_name);
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kfree(full_name);
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return ret;
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}
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EXPORT_SYMBOL_GPL(snd_soc_component_nc_pin_unlocked);
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int snd_soc_component_get_pin_status(struct snd_soc_component *component,
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const char *pin)
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{
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struct snd_soc_dapm_context *dapm =
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snd_soc_component_get_dapm(component);
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char *full_name;
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int ret;
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if (!component->name_prefix)
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return snd_soc_dapm_get_pin_status(dapm, pin);
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full_name = kasprintf(GFP_KERNEL, "%s %s", component->name_prefix, pin);
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if (!full_name)
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return -ENOMEM;
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ret = snd_soc_dapm_get_pin_status(dapm, full_name);
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kfree(full_name);
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return ret;
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}
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EXPORT_SYMBOL_GPL(snd_soc_component_get_pin_status);
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int snd_soc_component_force_enable_pin(struct snd_soc_component *component,
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const char *pin)
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{
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struct snd_soc_dapm_context *dapm =
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snd_soc_component_get_dapm(component);
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char *full_name;
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int ret;
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if (!component->name_prefix)
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return snd_soc_dapm_force_enable_pin(dapm, pin);
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full_name = kasprintf(GFP_KERNEL, "%s %s", component->name_prefix, pin);
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if (!full_name)
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return -ENOMEM;
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ret = snd_soc_dapm_force_enable_pin(dapm, full_name);
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kfree(full_name);
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return ret;
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}
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EXPORT_SYMBOL_GPL(snd_soc_component_force_enable_pin);
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int snd_soc_component_force_enable_pin_unlocked(
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struct snd_soc_component *component,
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const char *pin)
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{
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struct snd_soc_dapm_context *dapm =
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snd_soc_component_get_dapm(component);
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char *full_name;
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int ret;
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if (!component->name_prefix)
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return snd_soc_dapm_force_enable_pin_unlocked(dapm, pin);
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full_name = kasprintf(GFP_KERNEL, "%s %s", component->name_prefix, pin);
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if (!full_name)
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return -ENOMEM;
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ret = snd_soc_dapm_force_enable_pin_unlocked(dapm, full_name);
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kfree(full_name);
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return ret;
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}
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EXPORT_SYMBOL_GPL(snd_soc_component_force_enable_pin_unlocked);
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static const struct snd_pcm_hardware dummy_dma_hardware = {
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/* Random values to keep userspace happy when checking constraints */
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.info = SNDRV_PCM_INFO_INTERLEAVED |
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SNDRV_PCM_INFO_BLOCK_TRANSFER,
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.buffer_bytes_max = 128*1024,
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.period_bytes_min = PAGE_SIZE,
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.period_bytes_max = PAGE_SIZE*2,
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.periods_min = 2,
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.periods_max = 128,
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};
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static const struct snd_soc_component_driver dummy_codec = {
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.idle_bias_on = 1,
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.use_pmdown_time = 1,
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.endianness = 1,
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.non_legacy_dai_naming = 1,
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};
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#define STUB_RATES SNDRV_PCM_RATE_8000_192000
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#define STUB_FORMATS (SNDRV_PCM_FMTBIT_S8 | \
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SNDRV_PCM_FMTBIT_U8 | \
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SNDRV_PCM_FMTBIT_S16_LE | \
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SNDRV_PCM_FMTBIT_U16_LE | \
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SNDRV_PCM_FMTBIT_S24_LE | \
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SNDRV_PCM_FMTBIT_U24_LE | \
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SNDRV_PCM_FMTBIT_S32_LE | \
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SNDRV_PCM_FMTBIT_U32_LE | \
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SNDRV_PCM_FMTBIT_IEC958_SUBFRAME_LE)
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/*
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* The dummy CODEC is only meant to be used in situations where there is no
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* actual hardware.
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*
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* If there is actual hardware even if it does not have a control bus
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* the hardware will still have constraints like supported samplerates, etc.
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* which should be modelled. And the data flow graph also should be modelled
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* using DAPM.
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*/
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static struct snd_soc_dai_driver dummy_dai = {
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.name = "snd-soc-dummy-dai",
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.playback = {
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.stream_name = "Playback",
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.channels_min = 1,
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.channels_max = 384,
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.rates = STUB_RATES,
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.formats = STUB_FORMATS,
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},
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.capture = {
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.stream_name = "Capture",
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.channels_min = 1,
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.channels_max = 384,
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.rates = STUB_RATES,
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.formats = STUB_FORMATS,
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},
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};
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int snd_soc_dai_is_dummy(struct snd_soc_dai *dai)
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{
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if (dai->driver == &dummy_dai)
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return 1;
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return 0;
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}
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static int snd_soc_dummy_probe(struct platform_device *pdev)
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{
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int ret;
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ret = devm_snd_soc_register_component(&pdev->dev,
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&dummy_codec, &dummy_dai, 1);
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return ret;
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}
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static struct platform_driver soc_dummy_driver = {
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.driver = {
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.name = "snd-soc-dummy",
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},
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.probe = snd_soc_dummy_probe,
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};
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static struct platform_device *soc_dummy_dev;
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int __init snd_soc_util_init(void)
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{
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int ret;
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soc_dummy_dev =
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platform_device_register_simple("snd-soc-dummy", -1, NULL, 0);
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if (IS_ERR(soc_dummy_dev))
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return PTR_ERR(soc_dummy_dev);
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ret = platform_driver_register(&soc_dummy_driver);
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if (ret != 0)
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platform_device_unregister(soc_dummy_dev);
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return ret;
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}
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void __exit snd_soc_util_exit(void)
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{
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platform_driver_unregister(&soc_dummy_driver);
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platform_device_unregister(soc_dummy_dev);
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}
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