include/media/dvb_ca_en50221.h

Source file repositories/reference/linux-study-clean/include/media/dvb_ca_en50221.h

File Facts

System
Linux kernel
Corpus path
include/media/dvb_ca_en50221.h
Extension
.h
Size
4455 bytes
Lines
143
Domain
Repository Root And Misc
Bucket
include
Inferred role
Repository Root And Misc: implementation source
Status
source implementation candidate

Why This File Exists

Top-level or miscellaneous repository surface. Use this as map coverage unless a later manual pass promotes the file into a deeper subsystem dossier.

Dependency Surface

Detected Declarations

Annotated Snippet

struct dvb_ca_en50221 {
	struct module *owner;

	int (*read_attribute_mem)(struct dvb_ca_en50221 *ca,
				  int slot, int address);
	int (*write_attribute_mem)(struct dvb_ca_en50221 *ca,
				   int slot, int address, u8 value);

	int (*read_cam_control)(struct dvb_ca_en50221 *ca,
				int slot, u8 address);
	int (*write_cam_control)(struct dvb_ca_en50221 *ca,
				 int slot, u8 address, u8 value);

	int (*read_data)(struct dvb_ca_en50221 *ca,
			 int slot, u8 *ebuf, int ecount);
	int (*write_data)(struct dvb_ca_en50221 *ca,
			  int slot, u8 *ebuf, int ecount);

	int (*slot_reset)(struct dvb_ca_en50221 *ca, int slot);
	int (*slot_shutdown)(struct dvb_ca_en50221 *ca, int slot);
	int (*slot_ts_enable)(struct dvb_ca_en50221 *ca, int slot);

	int (*poll_slot_status)(struct dvb_ca_en50221 *ca, int slot, int open);

	void *data;

	void *private;
};

/*
 * Functions for reporting IRQ events
 */

/**
 * dvb_ca_en50221_camchange_irq - A CAMCHANGE IRQ has occurred.
 *
 * @pubca: CA instance.
 * @slot: Slot concerned.
 * @change_type: One of the DVB_CA_CAMCHANGE_* values
 */
void dvb_ca_en50221_camchange_irq(struct dvb_ca_en50221 *pubca, int slot,
				  int change_type);

/**
 * dvb_ca_en50221_camready_irq - A CAMREADY IRQ has occurred.
 *
 * @pubca: CA instance.
 * @slot: Slot concerned.
 */
void dvb_ca_en50221_camready_irq(struct dvb_ca_en50221 *pubca, int slot);

/**
 * dvb_ca_en50221_frda_irq - An FR or a DA IRQ has occurred.
 *
 * @ca: CA instance.
 * @slot: Slot concerned.
 */
void dvb_ca_en50221_frda_irq(struct dvb_ca_en50221 *ca, int slot);

/*
 * Initialisation/shutdown functions
 */

/**
 * dvb_ca_en50221_init - Initialise a new DVB CA device.
 *
 * @dvb_adapter: DVB adapter to attach the new CA device to.
 * @ca: The dvb_ca instance.
 * @flags: Flags describing the CA device (DVB_CA_EN50221_FLAG_*).
 * @slot_count: Number of slots supported.
 *
 * @return 0 on success, nonzero on failure
 */
int dvb_ca_en50221_init(struct dvb_adapter *dvb_adapter,
			struct dvb_ca_en50221 *ca, int flags,
			       int slot_count);

/**
 * dvb_ca_en50221_release - Release a DVB CA device.
 *
 * @ca: The associated dvb_ca instance.
 */
void dvb_ca_en50221_release(struct dvb_ca_en50221 *ca);

#endif

Annotation

Implementation Notes