sound/pci/ctxfi/ctsrc.h

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

File Facts

System
Linux kernel
Corpus path
sound/pci/ctxfi/ctsrc.h
Extension
.h
Size
4448 bytes
Lines
149
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 src {
	struct rsc rsc; /* Basic resource info */
	struct src *intlv; /* Pointer to next interleaved SRC in a series */
	const struct src_rsc_ops *ops; /* SRC specific operations */
	/* Number of contiguous srcs for interleaved usage */
	unsigned char multi;
	unsigned char mode; /* Working mode of this SRC resource */
};

struct src_rsc_ops {
	int (*set_state)(struct src *src, unsigned int state);
	int (*set_bm)(struct src *src, unsigned int bm);
	int (*set_sf)(struct src *src, unsigned int sf);
	int (*set_pm)(struct src *src, unsigned int pm);
	int (*set_rom)(struct src *src, unsigned int rom);
	int (*set_vo)(struct src *src, unsigned int vo);
	int (*set_st)(struct src *src, unsigned int st);
	int (*set_bp)(struct src *src, unsigned int bp);
	int (*set_cisz)(struct src *src, unsigned int cisz);
	int (*set_ca)(struct src *src, unsigned int ca);
	int (*set_sa)(struct src *src, unsigned int sa);
	int (*set_la)(struct src *src, unsigned int la);
	int (*set_pitch)(struct src *src, unsigned int pitch);
	int (*set_clr_zbufs)(struct src *src);
	int (*commit_write)(struct src *src);
	int (*get_ca)(struct src *src);
	int (*init)(struct src *src);
	struct src* (*next_interleave)(struct src *src);
};

/* Define src resource request description info */
struct src_desc {
	/* Number of contiguous master srcs for interleaved usage */
	unsigned char multi;
	unsigned char msr;
	unsigned char mode; /* Working mode of the requested srcs */
};

/* Define src manager object */
struct src_mgr {
	struct rsc_mgr mgr;	/* Basic resource manager info */
	struct snd_card *card;	/* pointer to this card */
	spinlock_t mgr_lock;

	 /* request src resource */
	int (*get_src)(struct src_mgr *mgr,
		       const struct src_desc *desc, struct src **rsrc);
	/* return src resource */
	int (*put_src)(struct src_mgr *mgr, struct src *src);
	int (*src_enable_s)(struct src_mgr *mgr, struct src *src);
	int (*src_enable)(struct src_mgr *mgr, struct src *src);
	int (*src_disable)(struct src_mgr *mgr, struct src *src);
	int (*commit_write)(struct src_mgr *mgr);
};

/* Define the descriptor of a SRC Input Mapper resource */
struct srcimp_mgr;
struct srcimp_rsc_ops;

struct srcimp {
	struct rsc rsc;
	unsigned char idx[8];
	unsigned int mapped; /* A bit-map indicating which conj rsc is mapped */
	struct srcimp_mgr *mgr;
	const struct srcimp_rsc_ops *ops;
	struct imapper imappers[];
};

struct srcimp_rsc_ops {
	int (*map)(struct srcimp *srcimp, struct src *user, struct rsc *input);
	int (*unmap)(struct srcimp *srcimp);
};

/* Define SRCIMP resource request description info */
struct srcimp_desc {
	unsigned int msr;
};

struct srcimp_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 srcimp resource */
	int (*get_srcimp)(struct srcimp_mgr *mgr,
			  const struct srcimp_desc *desc,

Annotation

Implementation Notes