drivers/media/common/b2c2/flexcop-common.h

Source file repositories/reference/linux-study-clean/drivers/media/common/b2c2/flexcop-common.h

File Facts

System
Linux kernel
Corpus path
drivers/media/common/b2c2/flexcop-common.h
Extension
.h
Size
5608 bytes
Lines
183
Domain
Driver Families
Bucket
drivers/media
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 flexcop_dma {
	struct pci_dev *pdev;

	u8 *cpu_addr0;
	dma_addr_t dma_addr0;
	u8 *cpu_addr1;
	dma_addr_t dma_addr1;
	u32 size; /* size of each address in bytes */
};

struct flexcop_i2c_adapter {
	struct flexcop_device *fc;
	struct i2c_adapter i2c_adap;

	u8 no_base_addr;
	flexcop_i2c_port_t port;
};

/* Control structure for data definitions that are common to
 * the B2C2-based PCI and USB devices.
 */
struct flexcop_device {
	/* general */
	struct device *dev; /* for firmware_class */

#define FC_STATE_DVB_INIT 0x01
#define FC_STATE_I2C_INIT 0x02
#define FC_STATE_FE_INIT  0x04
	int init_state;

	/* device information */
	int has_32_hw_pid_filter;
	flexcop_revision_t rev;
	flexcop_device_type_t dev_type;
	flexcop_bus_t bus_type;

	/* dvb stuff */
	struct dvb_adapter dvb_adapter;
	struct dvb_frontend *fe;
	struct dvb_net dvbnet;
	struct dvb_demux demux;
	struct dmxdev dmxdev;
	struct dmx_frontend hw_frontend;
	struct dmx_frontend mem_frontend;
	int (*fe_sleep) (struct dvb_frontend *);

	struct flexcop_i2c_adapter fc_i2c_adap[3];
	struct mutex i2c_mutex;
	struct module *owner;

	/* options and status */
	int extra_feedcount;
	int feedcount;
	int pid_filtering;
	int fullts_streaming_state;
	int skip_6_hw_pid_filter;

	/* bus specific callbacks */
	flexcop_ibi_value(*read_ibi_reg) (struct flexcop_device *,
			flexcop_ibi_register);
	int (*write_ibi_reg) (struct flexcop_device *,
			flexcop_ibi_register, flexcop_ibi_value);
	int (*i2c_request) (struct flexcop_i2c_adapter *,
		flexcop_access_op_t, u8 chipaddr, u8 addr, u8 *buf, u16 len);
	int (*stream_control) (struct flexcop_device *, int);
	int (*get_mac_addr) (struct flexcop_device *fc, int extended);
	void *bus_specific;
};

/* exported prototypes */

/* from flexcop.c */
void flexcop_pass_dmx_data(struct flexcop_device *fc, u8 *buf, u32 len);
void flexcop_pass_dmx_packets(struct flexcop_device *fc, u8 *buf, u32 no);

struct flexcop_device *flexcop_device_kmalloc(size_t bus_specific_len);
void flexcop_device_kfree(struct flexcop_device *);

int flexcop_device_initialize(struct flexcop_device *);
void flexcop_device_exit(struct flexcop_device *fc);
void flexcop_reset_block_300(struct flexcop_device *fc);

/* from flexcop-dma.c */
int flexcop_dma_allocate(struct pci_dev *pdev,
		struct flexcop_dma *dma, u32 size);
void flexcop_dma_free(struct flexcop_dma *dma);

int flexcop_dma_control_timer_irq(struct flexcop_device *fc,
		flexcop_dma_index_t no, int onoff);
int flexcop_dma_config(struct flexcop_device *fc, struct flexcop_dma *dma,

Annotation

Implementation Notes