sound/pci/ctxfi/ctdaio.h

Source file repositories/reference/linux-study-clean/sound/pci/ctxfi/ctdaio.h

File Facts

System
Linux kernel
Corpus path
sound/pci/ctxfi/ctdaio.h
Extension
.h
Size
3332 bytes
Lines
125
Domain
Driver Families
Bucket
sound/pci
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 daio {
	struct rsc rscl;	/* Basic resource info for left TX/RX */
	struct rsc rscr;	/* Basic resource info for right TX/RX */
	enum DAIOTYP type;
	unsigned char output;
};

struct dao {
	struct daio daio;
	const struct dao_rsc_ops *ops;	/* DAO specific operations */
	struct imapper **imappers;
	struct daio_mgr *mgr;
	struct hw *hw;
	void *ctrl_blk;
};

struct dai {
	struct daio daio;
	const struct dai_rsc_ops *ops;	/* DAI specific operations */
	struct hw *hw;
	void *ctrl_blk;
};

struct dao_desc {
	unsigned int msr:4;
	unsigned int passthru:1;
};

struct dao_rsc_ops {
	int (*set_spos)(struct dao *dao, unsigned int spos);
	int (*commit_write)(struct dao *dao);
	int (*get_spos)(struct dao *dao, unsigned int *spos);
	int (*reinit)(struct dao *dao, const struct dao_desc *desc);
	int (*set_left_input)(struct dao *dao, struct rsc *input);
	int (*set_right_input)(struct dao *dao, struct rsc *input);
	int (*clear_left_input)(struct dao *dao);
	int (*clear_right_input)(struct dao *dao);
};

struct dai_rsc_ops {
	int (*set_srt_srcl)(struct dai *dai, struct rsc *src);
	int (*set_srt_srcr)(struct dai *dai, struct rsc *src);
	int (*set_srt_msr)(struct dai *dai, unsigned int msr);
	int (*set_enb_src)(struct dai *dai, unsigned int enb);
	int (*set_enb_srt)(struct dai *dai, unsigned int enb);
	int (*commit_write)(struct dai *dai);
};

/* Define daio resource request description info */
struct daio_desc {
	unsigned int type:4;
	unsigned int msr:4;
	unsigned int passthru:1;
	unsigned int output:1;
};

struct daio_mgr {
	struct rsc_mgr mgr;	/* Basic resource manager info */
	struct snd_card *card;	/* pointer to this card */
	spinlock_t mgr_lock;
	spinlock_t imap_lock;
	struct list_head imappers;
	struct imapper *init_imap;
	unsigned int init_imap_added;

	 /* request one daio resource */
	int (*get_daio)(struct daio_mgr *mgr,
			const struct daio_desc *desc, struct daio **rdaio);
	/* return one daio resource */
	int (*put_daio)(struct daio_mgr *mgr, struct daio *daio);
	int (*daio_enable)(struct daio_mgr *mgr, struct daio *daio);
	int (*daio_disable)(struct daio_mgr *mgr, struct daio *daio);
	int (*imap_add)(struct daio_mgr *mgr, struct imapper *entry);
	int (*imap_delete)(struct daio_mgr *mgr, struct imapper *entry);
	int (*commit_write)(struct daio_mgr *mgr);
};

/* Constructor and destructor of daio resource manager */
int daio_mgr_create(struct hw *hw, void **ptr);
int daio_mgr_destroy(void *ptr);

#endif /* CTDAIO_H */

Annotation

Implementation Notes