drivers/media/dvb-frontends/tda1002x.h

Source file repositories/reference/linux-study-clean/drivers/media/dvb-frontends/tda1002x.h

File Facts

System
Linux kernel
Corpus path
drivers/media/dvb-frontends/tda1002x.h
Extension
.h
Size
1910 bytes
Lines
75
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 tda1002x_config {
	/* the demodulator's i2c address */
	u8 demod_address;
	u8 invert;
};

enum tda10023_output_mode {
	TDA10023_OUTPUT_MODE_PARALLEL_A = 0xe0,
	TDA10023_OUTPUT_MODE_PARALLEL_B = 0xa1,
	TDA10023_OUTPUT_MODE_PARALLEL_C = 0xa0,
	TDA10023_OUTPUT_MODE_SERIAL, /* TODO: not implemented */
};

struct tda10023_config {
	/* the demodulator's i2c address */
	u8 demod_address;
	u8 invert;

	/* clock settings */
	u32 xtal; /* defaults: 28920000 */
	u8 pll_m; /* defaults: 8 */
	u8 pll_p; /* defaults: 4 */
	u8 pll_n; /* defaults: 1 */

	/* MPEG2 TS output mode */
	u8 output_mode;

	/* input freq offset + baseband conversion type */
	u16 deltaf;
};

#if IS_REACHABLE(CONFIG_DVB_TDA10021)
extern struct dvb_frontend* tda10021_attach(const struct tda1002x_config* config,
					    struct i2c_adapter* i2c, u8 pwm);
#else
static inline struct dvb_frontend* tda10021_attach(const struct tda1002x_config* config,
					    struct i2c_adapter* i2c, u8 pwm)
{
	printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__);
	return NULL;
}
#endif // CONFIG_DVB_TDA10021

#if IS_REACHABLE(CONFIG_DVB_TDA10023)
extern struct dvb_frontend *tda10023_attach(
	const struct tda10023_config *config,
	struct i2c_adapter *i2c, u8 pwm);
#else
static inline struct dvb_frontend *tda10023_attach(
	const struct tda10023_config *config,
	struct i2c_adapter *i2c, u8 pwm)
{
	printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__);
	return NULL;
}
#endif // CONFIG_DVB_TDA10023

#endif // TDA1002x_H

Annotation

Implementation Notes