sound/soc/codecs/sigmadsp.h

Source file repositories/reference/linux-study-clean/sound/soc/codecs/sigmadsp.h

File Facts

System
Linux kernel
Corpus path
sound/soc/codecs/sigmadsp.h
Extension
.h
Size
1660 bytes
Lines
65
Domain
Driver Families
Bucket
sound/soc
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 sigmadsp_ops {
	int (*safeload)(struct sigmadsp *sigmadsp, unsigned int addr,
			const uint8_t *data, size_t len);
};

struct sigmadsp {
	const struct sigmadsp_ops *ops;

	struct list_head ctrl_list;
	struct list_head data_list;

	struct snd_pcm_hw_constraint_list rate_constraints;

	unsigned int current_samplerate;
	struct snd_soc_component *component;
	struct device *dev;

	struct mutex lock;

	void *control_data;
	int (*write)(void *, unsigned int, const uint8_t *, size_t);
	int (*read)(void *, unsigned int, uint8_t *, size_t);
};

struct sigmadsp *devm_sigmadsp_init(struct device *dev,
	const struct sigmadsp_ops *ops, const char *firmware_name);

int sigmadsp_restrict_params(struct sigmadsp *sigmadsp,
	struct snd_pcm_substream *substream);

struct i2c_client;

struct sigmadsp *devm_sigmadsp_init_regmap(struct device *dev,
	struct regmap *regmap, const struct sigmadsp_ops *ops,
	const char *firmware_name);
struct sigmadsp *devm_sigmadsp_init_i2c(struct i2c_client *client,
	const struct sigmadsp_ops *ops,	const char *firmware_name);

int sigmadsp_attach(struct sigmadsp *sigmadsp,
	struct snd_soc_component *component);
int sigmadsp_setup(struct sigmadsp *sigmadsp, unsigned int samplerate);
void sigmadsp_reset(struct sigmadsp *sigmadsp);

#endif

Annotation

Implementation Notes