diff options
Diffstat (limited to 'include/sound/soc-dpcm.h')
| -rw-r--r-- | include/sound/soc-dpcm.h | 81 |
1 files changed, 50 insertions, 31 deletions
diff --git a/include/sound/soc-dpcm.h b/include/sound/soc-dpcm.h index 04598f1efd77..af24665e37e8 100644 --- a/include/sound/soc-dpcm.h +++ b/include/sound/soc-dpcm.h @@ -1,16 +1,14 @@ -/* +/* SPDX-License-Identifier: GPL-2.0 + * * linux/sound/soc-dpcm.h -- ALSA SoC Dynamic PCM Support * * Author: Liam Girdwood <lrg@ti.com> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. */ #ifndef __LINUX_SND_SOC_DPCM_H #define __LINUX_SND_SOC_DPCM_H +#include <linux/slab.h> #include <linux/list.h> #include <sound/pcm.h> @@ -60,7 +58,6 @@ enum snd_soc_dpcm_state { enum snd_soc_dpcm_trigger { SND_SOC_DPCM_TRIGGER_PRE = 0, SND_SOC_DPCM_TRIGGER_POST, - SND_SOC_DPCM_TRIGGER_BESPOKE, }; /* @@ -80,8 +77,6 @@ struct snd_soc_dpcm { 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 @@ -95,44 +90,68 @@ struct snd_soc_dpcm_runtime { 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; -}; -/* 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); + int trigger_pending; /* trigger cmd + 1 if pending, 0 if not */ -/* 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); + int be_start; /* refcount protected by BE stream pcm lock */ + int be_pause; /* refcount protected by BE stream pcm lock */ + bool fe_pause; /* used to track STOP after PAUSE */ +}; + +#define for_each_dpcm_fe(be, stream, _dpcm) \ + list_for_each_entry(_dpcm, &(be)->dpcm[stream].fe_clients, list_fe) -/* is the current PCM operation for this FE ? */ -int snd_soc_dpcm_fe_can_update(struct snd_soc_pcm_runtime *fe, int stream); +#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) -/* 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); +/* update audio routing between PCMs and any DAI links */ +int snd_soc_dpcm_runtime_update(struct snd_soc_card *card); -/* 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); +#ifdef CONFIG_DEBUG_FS +void soc_dpcm_debugfs_add(struct snd_soc_pcm_runtime *rtd); +#else +static inline void soc_dpcm_debugfs_add(struct snd_soc_pcm_runtime *rtd) +{ +} +#endif -/* internal use only */ -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_dapm_widget *); +int dpcm_path_get(struct snd_soc_pcm_runtime *fe, + int stream, struct snd_soc_dapm_widget_list **list_); +void dpcm_path_put(struct snd_soc_dapm_widget_list **list); +int dpcm_add_paths(struct snd_soc_pcm_runtime *fe, int stream, + struct snd_soc_dapm_widget_list **list_); +int dpcm_be_dai_startup(struct snd_soc_pcm_runtime *fe, int stream); +void dpcm_be_dai_stop(struct snd_soc_pcm_runtime *fe, int stream, + int do_hw_free, struct snd_soc_dpcm *last); +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); +void 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); +void dpcm_dapm_stream_event(struct snd_soc_pcm_runtime *fe, int dir, int event); + +bool dpcm_end_walk_at_be(struct snd_soc_dapm_widget *widget, enum snd_soc_dapm_direction dir); +int widget_in_list(struct snd_soc_dapm_widget_list *list, + struct snd_soc_dapm_widget *widget); + +#define dpcm_be_dai_startup_rollback(fe, stream, last) \ + dpcm_be_dai_stop(fe, stream, 0, last) +#define dpcm_be_dai_startup_unwind(fe, stream) dpcm_be_dai_stop(fe, stream, 0, NULL) +#define dpcm_be_dai_shutdown(fe, stream) dpcm_be_dai_stop(fe, stream, 1, NULL) #endif |