sound/soc/codecs/wm_hubs.h

File Facts

System

Linux kernel

Corpus path

sound/soc/codecs/wm_hubs.h

Extension

.h

Size

1888 bytes

Lines

72

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.
• Touches IRQ or DMA behavior; this matters for the representative real-device path.
• Defines or uses C structs; map object ownership, embedded links, reference counts, and lock ownership.

Dependency Surface

• linux/completion.h
• linux/interrupt.h
• linux/list.h
• sound/control.h

Detected Declarations

• struct snd_soc_component
• struct wm_hubs_data

Annotated Snippet

struct wm_hubs_data {
	int dcs_codes_l;
	int dcs_codes_r;
	int dcs_readback_mode;
	int hp_startup_mode;
	int series_startup;
	int no_series_update;
	bool micd_scthr;

	bool no_cache_dac_hp_direct;
	struct list_head dcs_cache;
	bool (*check_class_w_digital)(struct snd_soc_component *);

	int micb1_delay;
	int micb2_delay;

	bool lineout1_se;
	bool lineout1n_ena;
	bool lineout1p_ena;

	bool lineout2_se;
	bool lineout2n_ena;
	bool lineout2p_ena;

	bool dcs_done_irq;
	struct completion dcs_done;

	struct snd_soc_component *component;
};

extern int wm_hubs_add_analogue_controls(struct snd_soc_component *);
extern int wm_hubs_add_analogue_routes(struct snd_soc_component *, int, int);
extern int wm_hubs_handle_analogue_pdata(struct snd_soc_component *,
					 int lineout1_diff, int lineout2_diff,
					 int lineout1fb, int lineout2fb,
					 int jd_scthr, int jd_thr,
					 int micbias1_delay, int micbias2_delay,
					 int micbias1_lvl, int micbias2_lvl);

extern irqreturn_t wm_hubs_dcs_done(int irq, void *data);
extern void wm_hubs_vmid_ena(struct snd_soc_component *component);
extern void wm_hubs_set_bias_level(struct snd_soc_component *component,
				   enum snd_soc_bias_level level);
extern void wm_hubs_update_class_w(struct snd_soc_component *component);

extern const struct snd_kcontrol_new wm_hubs_hpl_mux;
extern const struct snd_kcontrol_new wm_hubs_hpr_mux;

#endif

Annotation

• Immediate include surface: `linux/completion.h`, `linux/interrupt.h`, `linux/list.h`, `sound/control.h`.
• Detected declarations: `struct snd_soc_component`, `struct wm_hubs_data`.
• Atlas domain: Driver Families / sound/soc.
• Implementation status: source implementation candidate.
• IRQ or DMA behavior appears here, which is relevant to the selected PCIe/NVMe device path.

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.