sound/soc/codecs/rt-sdw-common.h

File Facts

System

Linux kernel

Corpus path

sound/soc/codecs/rt-sdw-common.h

Extension

.h

Size

2147 bytes

Lines

67

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.

• 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.
• Defines or uses C structs; map object ownership, embedded links, reference counts, and lock ownership.

Dependency Surface

• No C-style include directives detected by the generator.

Detected Declarations

• struct rt_sdca_dmic_kctrl_priv

Annotated Snippet

struct rt_sdca_dmic_kctrl_priv {
	unsigned int reg_base;
	unsigned int count;
	unsigned int max;
	unsigned int invert;
};

#define RT_SDCA_PR_VALUE(xreg_base, xcount, xmax, xinvert) \
	((unsigned long)&(struct rt_sdca_dmic_kctrl_priv) \
		{.reg_base = xreg_base, .count = xcount, .max = xmax, \
		.invert = xinvert})

#define RT_SDCA_FU_CTRL(xname, reg_base, xmax, xinvert, xcount, \
	xinfo, xget, xput) \
{	.iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = (xname), \
	.info = xinfo, \
	.get = xget, \
	.put = xput, \
	.private_value = RT_SDCA_PR_VALUE(reg_base, xcount, xmax, xinvert)}

#define RT_SDCA_EXT_TLV(xname, reg_base, xhandler_get,\
	 xhandler_put, xcount, xmax, tlv_array, xinfo) \
{	.iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = (xname), \
	.access = SNDRV_CTL_ELEM_ACCESS_TLV_READ | \
		 SNDRV_CTL_ELEM_ACCESS_READWRITE, \
	.tlv.p = (tlv_array), \
	.info = xinfo, \
	.get = xhandler_get, .put = xhandler_put, \
	.private_value = RT_SDCA_PR_VALUE(reg_base, xcount, xmax, 0) }


int rt_sdca_index_write(struct regmap *map, unsigned int nid,
	unsigned int reg, unsigned int value);
int rt_sdca_index_read(struct regmap *map, unsigned int nid,
	unsigned int reg, unsigned int *value);
int rt_sdca_index_update_bits(struct regmap *map,
	unsigned int nid, unsigned int reg, unsigned int mask, unsigned int val);
int rt_sdca_btn_type(unsigned char *buffer);
int rt_sdca_headset_detect(struct regmap *map, unsigned int entity_id);
int rt_sdca_button_detect(struct regmap *map, unsigned int entity_id,
	unsigned int hid_buf_addr, unsigned int hid_id);

#endif /* __RT_SDW_COMMON_H__ */

Annotation

• Detected declarations: `struct rt_sdca_dmic_kctrl_priv`.
• Atlas domain: Driver Families / sound/soc.
• Implementation status: source implementation candidate.

Implementation Notes

• This generated page is the file-by-file coverage layer; curated subsystem chapters should link here when they synthesize a multi-file control flow.
• Core OS pages should be promoted from atlas-only to deep-reviewed when they explain data structures, invariants, locking, lifecycle, and C implementation snippets.
• Driver-family pages are intentionally pattern-oriented unless they are part of the selected PCIe/NVMe representative device path.