mirror of
https://github.com/edk2-porting/linux-next.git
synced 2024-12-27 06:34:11 +08:00
8d6258a4dd
To be more readable code, this patch adds new for_each_dpcm_be() macro, and replace existing code to it. Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> Signed-off-by: Mark Brown <broonie@kernel.org>
170 lines
5.1 KiB
C
170 lines
5.1 KiB
C
/* SPDX-License-Identifier: GPL-2.0
|
|
*
|
|
* linux/sound/soc-dpcm.h -- ALSA SoC Dynamic PCM Support
|
|
*
|
|
* Author: Liam Girdwood <lrg@ti.com>
|
|
*/
|
|
|
|
#ifndef __LINUX_SND_SOC_DPCM_H
|
|
#define __LINUX_SND_SOC_DPCM_H
|
|
|
|
#include <linux/slab.h>
|
|
#include <linux/list.h>
|
|
#include <sound/pcm.h>
|
|
|
|
struct snd_soc_pcm_runtime;
|
|
|
|
/*
|
|
* Types of runtime_update to perform. e.g. originated from FE PCM ops
|
|
* or audio route changes triggered by muxes/mixers.
|
|
*/
|
|
enum snd_soc_dpcm_update {
|
|
SND_SOC_DPCM_UPDATE_NO = 0,
|
|
SND_SOC_DPCM_UPDATE_BE,
|
|
SND_SOC_DPCM_UPDATE_FE,
|
|
};
|
|
|
|
/*
|
|
* Dynamic PCM Frontend -> Backend link management states.
|
|
*/
|
|
enum snd_soc_dpcm_link_state {
|
|
SND_SOC_DPCM_LINK_STATE_NEW = 0, /* newly created link */
|
|
SND_SOC_DPCM_LINK_STATE_FREE, /* link to be dismantled */
|
|
};
|
|
|
|
/*
|
|
* Dynamic PCM Frontend -> Backend link PCM states.
|
|
*/
|
|
enum snd_soc_dpcm_state {
|
|
SND_SOC_DPCM_STATE_NEW = 0,
|
|
SND_SOC_DPCM_STATE_OPEN,
|
|
SND_SOC_DPCM_STATE_HW_PARAMS,
|
|
SND_SOC_DPCM_STATE_PREPARE,
|
|
SND_SOC_DPCM_STATE_START,
|
|
SND_SOC_DPCM_STATE_STOP,
|
|
SND_SOC_DPCM_STATE_PAUSED,
|
|
SND_SOC_DPCM_STATE_SUSPEND,
|
|
SND_SOC_DPCM_STATE_HW_FREE,
|
|
SND_SOC_DPCM_STATE_CLOSE,
|
|
};
|
|
|
|
/*
|
|
* Dynamic PCM trigger ordering. Triggering flexibility is required as some
|
|
* DSPs require triggering before/after their CPU platform and DAIs.
|
|
*
|
|
* i.e. some clients may want to manually order this call in their PCM
|
|
* trigger() whilst others will just use the regular core ordering.
|
|
*/
|
|
enum snd_soc_dpcm_trigger {
|
|
SND_SOC_DPCM_TRIGGER_PRE = 0,
|
|
SND_SOC_DPCM_TRIGGER_POST,
|
|
SND_SOC_DPCM_TRIGGER_BESPOKE,
|
|
};
|
|
|
|
/*
|
|
* Dynamic PCM link
|
|
* This links together a FE and BE DAI at runtime and stores the link
|
|
* state information and the hw_params configuration.
|
|
*/
|
|
struct snd_soc_dpcm {
|
|
/* FE and BE DAIs*/
|
|
struct snd_soc_pcm_runtime *be;
|
|
struct snd_soc_pcm_runtime *fe;
|
|
|
|
/* link state */
|
|
enum snd_soc_dpcm_link_state state;
|
|
|
|
/* list of BE and FE for this DPCM link */
|
|
struct list_head list_be;
|
|
struct list_head list_fe;
|
|
|
|
/* hw params for this link - may be different for each link */
|
|
struct snd_pcm_hw_params hw_params;
|
|
#ifdef CONFIG_DEBUG_FS
|
|
struct dentry *debugfs_state;
|
|
#endif
|
|
};
|
|
|
|
/*
|
|
* Dynamic PCM runtime data.
|
|
*/
|
|
struct snd_soc_dpcm_runtime {
|
|
struct list_head be_clients;
|
|
struct list_head fe_clients;
|
|
|
|
int users;
|
|
struct snd_pcm_runtime *runtime;
|
|
struct snd_pcm_hw_params hw_params;
|
|
|
|
/* state and update */
|
|
enum snd_soc_dpcm_update runtime_update;
|
|
enum snd_soc_dpcm_state state;
|
|
|
|
int trigger_pending; /* trigger cmd + 1 if pending, 0 if not */
|
|
};
|
|
|
|
#define for_each_dpcm_fe(be, stream, dpcm) \
|
|
list_for_each_entry(dpcm, &(be)->dpcm[stream].fe_clients, list_fe)
|
|
|
|
#define for_each_dpcm_be(fe, stream, dpcm) \
|
|
list_for_each_entry(dpcm, &(fe)->dpcm[stream].be_clients, list_be)
|
|
#define for_each_dpcm_be_safe(fe, stream, dpcm, _dpcm) \
|
|
list_for_each_entry_safe(dpcm, _dpcm, &(fe)->dpcm[stream].be_clients, list_be)
|
|
#define for_each_dpcm_be_rollback(fe, stream, dpcm) \
|
|
list_for_each_entry_continue_reverse(dpcm, &(fe)->dpcm[stream].be_clients, list_be)
|
|
|
|
/* can this BE stop and free */
|
|
int snd_soc_dpcm_can_be_free_stop(struct snd_soc_pcm_runtime *fe,
|
|
struct snd_soc_pcm_runtime *be, int stream);
|
|
|
|
/* can this BE perform a hw_params() */
|
|
int snd_soc_dpcm_can_be_params(struct snd_soc_pcm_runtime *fe,
|
|
struct snd_soc_pcm_runtime *be, int stream);
|
|
|
|
/* is the current PCM operation for this FE ? */
|
|
int snd_soc_dpcm_fe_can_update(struct snd_soc_pcm_runtime *fe, int stream);
|
|
|
|
/* is the current PCM operation for this BE ? */
|
|
int snd_soc_dpcm_be_can_update(struct snd_soc_pcm_runtime *fe,
|
|
struct snd_soc_pcm_runtime *be, int stream);
|
|
|
|
/* get the substream for this BE */
|
|
struct snd_pcm_substream *
|
|
snd_soc_dpcm_get_substream(struct snd_soc_pcm_runtime *be, int stream);
|
|
|
|
/* get the BE runtime state */
|
|
enum snd_soc_dpcm_state
|
|
snd_soc_dpcm_be_get_state(struct snd_soc_pcm_runtime *be, int stream);
|
|
|
|
/* set the BE runtime state */
|
|
void snd_soc_dpcm_be_set_state(struct snd_soc_pcm_runtime *be, int stream,
|
|
enum snd_soc_dpcm_state state);
|
|
|
|
/* internal use only */
|
|
int soc_dpcm_be_digital_mute(struct snd_soc_pcm_runtime *fe, int mute);
|
|
void soc_dpcm_debugfs_add(struct snd_soc_pcm_runtime *rtd);
|
|
int soc_dpcm_runtime_update(struct snd_soc_card *);
|
|
|
|
int dpcm_path_get(struct snd_soc_pcm_runtime *fe,
|
|
int stream, struct snd_soc_dapm_widget_list **list_);
|
|
int dpcm_process_paths(struct snd_soc_pcm_runtime *fe,
|
|
int stream, struct snd_soc_dapm_widget_list **list, int new);
|
|
int dpcm_be_dai_startup(struct snd_soc_pcm_runtime *fe, int stream);
|
|
int dpcm_be_dai_shutdown(struct snd_soc_pcm_runtime *fe, int stream);
|
|
void dpcm_be_disconnect(struct snd_soc_pcm_runtime *fe, int stream);
|
|
void dpcm_clear_pending_state(struct snd_soc_pcm_runtime *fe, int stream);
|
|
int dpcm_be_dai_hw_free(struct snd_soc_pcm_runtime *fe, int stream);
|
|
int dpcm_be_dai_hw_params(struct snd_soc_pcm_runtime *fe, int tream);
|
|
int dpcm_be_dai_trigger(struct snd_soc_pcm_runtime *fe, int stream, int cmd);
|
|
int dpcm_be_dai_prepare(struct snd_soc_pcm_runtime *fe, int stream);
|
|
int dpcm_dapm_stream_event(struct snd_soc_pcm_runtime *fe, int dir,
|
|
int event);
|
|
|
|
static inline void dpcm_path_put(struct snd_soc_dapm_widget_list **list)
|
|
{
|
|
kfree(*list);
|
|
}
|
|
|
|
|
|
#endif
|