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BSP 최초 추가
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#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;
enum snd_soc_dpcm_update {
SND_SOC_DPCM_UPDATE_NO = 0,
SND_SOC_DPCM_UPDATE_BE,
SND_SOC_DPCM_UPDATE_FE,
};
enum snd_soc_dpcm_link_state {
SND_SOC_DPCM_LINK_STATE_NEW = 0,
SND_SOC_DPCM_LINK_STATE_FREE,
};
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,
};
enum snd_soc_dpcm_trigger {
SND_SOC_DPCM_TRIGGER_PRE = 0,
SND_SOC_DPCM_TRIGGER_POST,
SND_SOC_DPCM_TRIGGER_BESPOKE,
};
struct snd_soc_dpcm {
struct snd_soc_pcm_runtime *be;
struct snd_soc_pcm_runtime *fe;
enum snd_soc_dpcm_link_state state;
struct list_head list_be;
struct list_head list_fe;
struct snd_pcm_hw_params hw_params;
#ifdef CONFIG_DEBUG_FS
struct dentry *debugfs_state;
#endif
};
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;
enum snd_soc_dpcm_update runtime_update;
enum snd_soc_dpcm_state state;
int trigger_pending;
};
int snd_soc_dpcm_can_be_free_stop(struct snd_soc_pcm_runtime *fe,
struct snd_soc_pcm_runtime *be, int stream);
int snd_soc_dpcm_can_be_params(struct snd_soc_pcm_runtime *fe,
struct snd_soc_pcm_runtime *be, int stream);
int snd_soc_dpcm_fe_can_update(struct snd_soc_pcm_runtime *fe, int stream);
int snd_soc_dpcm_be_can_update(struct snd_soc_pcm_runtime *fe,
struct snd_soc_pcm_runtime *be, int stream);
struct snd_pcm_substream *
snd_soc_dpcm_get_substream(struct snd_soc_pcm_runtime *be, int stream);
enum snd_soc_dpcm_state
snd_soc_dpcm_be_get_state(struct snd_soc_pcm_runtime *be, int stream);
void snd_soc_dpcm_be_set_state(struct snd_soc_pcm_runtime *be, int stream,
enum snd_soc_dpcm_state state);
int soc_dpcm_be_digital_mute(struct snd_soc_pcm_runtime *fe, int mute);
int 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
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