include/sound/hdaudio_ext.h

Source file repositories/reference/linux-study-clean/include/sound/hdaudio_ext.h

File Facts

System
Linux kernel
Corpus path
include/sound/hdaudio_ext.h
Extension
.h
Size
4956 bytes
Lines
150
Domain
Driver Families
Bucket
include/sound
Inferred role
Driver Families: implementation source
Status
source implementation candidate

Why This File Exists

Repeatable hardware-adapter layer. Deep compatibility for every driver is out of scope; this atlas records patterns, probe lifecycles, bus glue, IRQ/DMA usage, and links back to core abstractions.

Dependency Surface

Detected Declarations

Annotated Snippet

struct hdac_ext_stream {
	struct hdac_stream hstream;

	void __iomem *pphc_addr;
	void __iomem *pplc_addr;

	u32 pphcllpl;
	u32 pphcllpu;
	u32 pphcldpl;
	u32 pphcldpu;

	u32 pplcllpl;
	u32 pplcllpu;

	bool decoupled:1;
	bool link_locked:1;
	bool link_prepared;

	int (*host_setup)(struct hdac_stream *, bool);

	struct snd_pcm_substream *link_substream;
};

#define hdac_stream(s)		(&(s)->hstream)
#define stream_to_hdac_ext_stream(s) \
	container_of(s, struct hdac_ext_stream, hstream)

int snd_hdac_ext_stream_init_all(struct hdac_bus *bus, int start_idx,
				 int num_stream, int dir);
void snd_hdac_ext_stream_free_all(struct hdac_bus *bus);
void snd_hdac_ext_link_free_all(struct hdac_bus *bus);
struct hdac_ext_stream *snd_hdac_ext_stream_assign(struct hdac_bus *bus,
					   struct snd_pcm_substream *substream,
					   int type);
void snd_hdac_ext_stream_release(struct hdac_ext_stream *hext_stream, int type);
struct hdac_ext_stream *snd_hdac_ext_cstream_assign(struct hdac_bus *bus,
						    struct snd_compr_stream *cstream);
void snd_hdac_ext_stream_decouple_locked(struct hdac_bus *bus,
					 struct hdac_ext_stream *hext_stream, bool decouple);
void snd_hdac_ext_stream_decouple(struct hdac_bus *bus,
				struct hdac_ext_stream *azx_dev, bool decouple);

void snd_hdac_ext_stream_start(struct hdac_ext_stream *hext_stream);
void snd_hdac_ext_stream_clear(struct hdac_ext_stream *hext_stream);
void snd_hdac_ext_stream_reset(struct hdac_ext_stream *hext_stream);
int snd_hdac_ext_stream_setup(struct hdac_ext_stream *hext_stream, int fmt);
int snd_hdac_ext_host_stream_setup(struct hdac_ext_stream *hext_stream, bool code_loading);

struct hdac_ext_link {
	struct hdac_bus *bus;
	int index;
	void __iomem *ml_addr; /* link output stream reg pointer */
	u32 lcaps;   /* link capablities */
	u16 lsdiid;  /* link sdi identifier */
	u32 id;
	u8 slcount;

	int ref_count;

	struct list_head list;
};

#define hdac_ext_link_alt(link)		((link)->lcaps & AZX_ML_HDA_LCAP_ALT)
#define hdac_ext_link_ofls(link)	((link)->lcaps & AZX_ML_HDA_LCAP_OFLS)

int snd_hdac_ext_bus_link_power_up(struct hdac_ext_link *hlink);
int snd_hdac_ext_bus_link_power_down(struct hdac_ext_link *hlink);
int snd_hdac_ext_bus_link_power_up_all(struct hdac_bus *bus);
int snd_hdac_ext_bus_link_power_down_all(struct hdac_bus *bus);
void snd_hdac_ext_bus_link_set_stream_id(struct hdac_ext_link *hlink,
					 int stream);
void snd_hdac_ext_bus_link_clear_stream_id(struct hdac_ext_link *hlink,
					   int stream);

int snd_hdac_ext_bus_link_get(struct hdac_bus *bus, struct hdac_ext_link *hlink);
int snd_hdac_ext_bus_link_put(struct hdac_bus *bus, struct hdac_ext_link *hlink);

void snd_hdac_ext_bus_link_power(struct hdac_device *codec, bool enable);

struct hdac_ext_device;

/* ops common to all codec drivers */
struct hdac_ext_codec_ops {
	int (*build_controls)(struct hdac_ext_device *dev);
	int (*init)(struct hdac_ext_device *dev);
	void (*free)(struct hdac_ext_device *dev);
};

struct hda_dai_map {
	char *dai_name;

Annotation

Implementation Notes