sound/soc/codecs/wcd-common.h

File Facts

System

Linux kernel

Corpus path

sound/soc/codecs/wcd-common.h

Extension

.h

Size

1198 bytes

Lines

47

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 device
• struct sdw_slave
• struct sdw_bus_params
• struct irq_domain
• struct wcd_sdw_ch_info
• struct wcd_common
• enum sdw_slave_status

Annotated Snippet

struct wcd_sdw_ch_info {
	int port_num;
	unsigned int ch_mask;
	unsigned int master_ch_mask;
};

#define WCD_SDW_CH(id, pn, cmask)	\
	[id] = {			\
		.port_num = pn,		\
		.ch_mask = cmask,	\
		.master_ch_mask = cmask,	\
	}

struct wcd_common {
	struct device *dev;
	int max_bias;
	u32 micb_mv[WCD_MAX_MICBIAS];
	u32 micb_vout[WCD_MAX_MICBIAS];
};

extern const struct component_ops wcd_sdw_component_ops;
int wcd_get_micb_vout_ctl_val(struct device *dev, u32 micb_mv);
int wcd_dt_parse_micbias_info(struct wcd_common *common);
int wcd_update_status(struct sdw_slave *slave, enum sdw_slave_status status);
int wcd_bus_config(struct sdw_slave *slave, struct sdw_bus_params *params);
int wcd_interrupt_callback(struct sdw_slave *slave, struct irq_domain *slave_irq,
		unsigned int wcd_intr_status0, unsigned int wcd_intr_status1,
		unsigned int wcd_intr_status2);

#endif /* __WCD_COMMON_H__  */

Annotation

• Detected declarations: `struct device`, `struct sdw_slave`, `struct sdw_bus_params`, `struct irq_domain`, `struct wcd_sdw_ch_info`, `struct wcd_common`, `enum sdw_slave_status`.
• 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.