sound/soc/mediatek/common/mtk-soundcard-driver.h

File Facts

System

Linux kernel

Corpus path

sound/soc/mediatek/common/mtk-soundcard-driver.h

Extension

.h

Size

1554 bytes

Lines

57

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 mtk_sof_priv
• struct mtk_soc_card_data
• struct snd_pcm_hw_constraint_list
• struct mtk_pcm_constraints_data
• struct mtk_platform_card_data
• struct mtk_soundcard_pdata
• enum mtk_pcm_constraint_type

Annotated Snippet

struct mtk_pcm_constraints_data {
	const struct snd_pcm_hw_constraint_list *channels;
	const struct snd_pcm_hw_constraint_list *rates;
};

struct mtk_platform_card_data {
	struct snd_soc_card *card;
	struct snd_soc_jack *jacks;
	const struct mtk_pcm_constraints_data *pcm_constraints;
	u8 num_jacks;
	u8 num_pcm_constraints;
	u8 flags;
};

struct mtk_soundcard_pdata {
	const char *card_name;
	struct mtk_platform_card_data *card_data;
	const struct mtk_sof_priv *sof_priv;

	int (*soc_probe)(struct mtk_soc_card_data *card_data, bool legacy);
};

/* Common playback/capture card startup ops */
extern const struct snd_soc_ops mtk_soundcard_common_playback_ops;
extern const struct snd_soc_ops mtk_soundcard_common_capture_ops;

/* Exported for custom/extended soundcard startup ops */
int mtk_soundcard_startup(struct snd_pcm_substream *substream,
			  enum mtk_pcm_constraint_type ctype);

int parse_dai_link_info(struct snd_soc_card *card);
void clean_card_reference(struct snd_soc_card *card);
int mtk_soundcard_common_probe(struct platform_device *pdev);
#endif

Annotation

• Detected declarations: `struct mtk_sof_priv`, `struct mtk_soc_card_data`, `struct snd_pcm_hw_constraint_list`, `struct mtk_pcm_constraints_data`, `struct mtk_platform_card_data`, `struct mtk_soundcard_pdata`, `enum mtk_pcm_constraint_type`.
• 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.