linux/include/sound/soc-topology.h
Mengdong Lin acfc7d46cd ASoC: topology: Add FE DAI links dynamically
Topology will also create FE DAI links dynamically from the PCM
objects. These links will be removed when the component is removed
and its topology info is unloaded.

The component driver can implement link_load/unload ops for extra
intialization (e.g. error check) and destruction.

Signed-off-by: Mengdong Lin <mengdong.lin@linux.intel.com>
Acked-by: Liam Girdwood <liam.r.girdwood@linux.intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2016-02-15 19:38:19 +00:00

193 lines
5.5 KiB
C

/*
* linux/sound/soc-topology.h -- ALSA SoC Firmware Controls and DAPM
*
* Copyright (C) 2012 Texas Instruments Inc.
* Copyright (C) 2015 Intel Corporation.
*
* 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.
*
* Simple file API to load FW that includes mixers, coefficients, DAPM graphs,
* algorithms, equalisers, DAIs, widgets, FE caps, BE caps, codec link caps etc.
*/
#ifndef __LINUX_SND_SOC_TPLG_H
#define __LINUX_SND_SOC_TPLG_H
#include <sound/asoc.h>
#include <linux/list.h>
struct firmware;
struct snd_kcontrol;
struct snd_soc_tplg_pcm_be;
struct snd_ctl_elem_value;
struct snd_ctl_elem_info;
struct snd_soc_dapm_widget;
struct snd_soc_component;
struct snd_soc_tplg_pcm_fe;
struct snd_soc_dapm_context;
struct snd_soc_card;
/* object scan be loaded and unloaded in groups with identfying indexes */
#define SND_SOC_TPLG_INDEX_ALL 0 /* ID that matches all FW objects */
/* dynamic object type */
enum snd_soc_dobj_type {
SND_SOC_DOBJ_NONE = 0, /* object is not dynamic */
SND_SOC_DOBJ_MIXER,
SND_SOC_DOBJ_ENUM,
SND_SOC_DOBJ_BYTES,
SND_SOC_DOBJ_PCM,
SND_SOC_DOBJ_DAI_LINK,
SND_SOC_DOBJ_CODEC_LINK,
SND_SOC_DOBJ_WIDGET,
};
/* dynamic control object */
struct snd_soc_dobj_control {
struct snd_kcontrol *kcontrol;
char **dtexts;
unsigned long *dvalues;
};
/* dynamic widget object */
struct snd_soc_dobj_widget {
unsigned int kcontrol_enum:1; /* this widget is an enum kcontrol */
};
/* generic dynamic object - all dynamic objects belong to this struct */
struct snd_soc_dobj {
enum snd_soc_dobj_type type;
unsigned int index; /* objects can belong in different groups */
struct list_head list;
struct snd_soc_tplg_ops *ops;
union {
struct snd_soc_dobj_control control;
struct snd_soc_dobj_widget widget;
};
void *private; /* core does not touch this */
};
/*
* Kcontrol operations - used to map handlers onto firmware based controls.
*/
struct snd_soc_tplg_kcontrol_ops {
u32 id;
int (*get)(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol);
int (*put)(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol);
int (*info)(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_info *uinfo);
};
/* Bytes ext operations, for TLV byte controls */
struct snd_soc_tplg_bytes_ext_ops {
u32 id;
int (*get)(struct snd_kcontrol *kcontrol, unsigned int __user *bytes,
unsigned int size);
int (*put)(struct snd_kcontrol *kcontrol,
const unsigned int __user *bytes, unsigned int size);
};
/*
* DAPM widget event handlers - used to map handlers onto widgets.
*/
struct snd_soc_tplg_widget_events {
u16 type;
int (*event_handler)(struct snd_soc_dapm_widget *w,
struct snd_kcontrol *k, int event);
};
/*
* Public API - Used by component drivers to load and unload dynamic objects
* and their resources.
*/
struct snd_soc_tplg_ops {
/* external kcontrol init - used for any driver specific init */
int (*control_load)(struct snd_soc_component *,
struct snd_kcontrol_new *, struct snd_soc_tplg_ctl_hdr *);
int (*control_unload)(struct snd_soc_component *,
struct snd_soc_dobj *);
/* external widget init - used for any driver specific init */
int (*widget_load)(struct snd_soc_component *,
struct snd_soc_dapm_widget *,
struct snd_soc_tplg_dapm_widget *);
int (*widget_unload)(struct snd_soc_component *,
struct snd_soc_dobj *);
/* FE DAI - used for any driver specific init */
int (*dai_load)(struct snd_soc_component *,
struct snd_soc_dai_driver *dai_drv);
int (*dai_unload)(struct snd_soc_component *,
struct snd_soc_dobj *);
/* DAI link - used for any driver specific init */
int (*link_load)(struct snd_soc_component *,
struct snd_soc_dai_link *link);
int (*link_unload)(struct snd_soc_component *,
struct snd_soc_dobj *);
/* callback to handle vendor bespoke data */
int (*vendor_load)(struct snd_soc_component *,
struct snd_soc_tplg_hdr *);
int (*vendor_unload)(struct snd_soc_component *,
struct snd_soc_tplg_hdr *);
/* completion - called at completion of firmware loading */
void (*complete)(struct snd_soc_component *);
/* manifest - optional to inform component of manifest */
int (*manifest)(struct snd_soc_component *,
struct snd_soc_tplg_manifest *);
/* vendor specific kcontrol handlers available for binding */
const struct snd_soc_tplg_kcontrol_ops *io_ops;
int io_ops_count;
/* vendor specific bytes ext handlers available for binding */
const struct snd_soc_tplg_bytes_ext_ops *bytes_ext_ops;
int bytes_ext_ops_count;
};
#ifdef CONFIG_SND_SOC_TOPOLOGY
/* gets a pointer to data from the firmware block header */
static inline const void *snd_soc_tplg_get_data(struct snd_soc_tplg_hdr *hdr)
{
const void *ptr = hdr;
return ptr + sizeof(*hdr);
}
/* Dynamic Object loading and removal for component drivers */
int snd_soc_tplg_component_load(struct snd_soc_component *comp,
struct snd_soc_tplg_ops *ops, const struct firmware *fw,
u32 index);
int snd_soc_tplg_component_remove(struct snd_soc_component *comp, u32 index);
/* Widget removal - widgets also removed wth component API */
void snd_soc_tplg_widget_remove(struct snd_soc_dapm_widget *w);
void snd_soc_tplg_widget_remove_all(struct snd_soc_dapm_context *dapm,
u32 index);
/* Binds event handlers to dynamic widgets */
int snd_soc_tplg_widget_bind_event(struct snd_soc_dapm_widget *w,
const struct snd_soc_tplg_widget_events *events, int num_events,
u16 event_type);
#else
static inline int snd_soc_tplg_component_remove(struct snd_soc_component *comp,
u32 index)
{
return 0;
}
#endif
#endif