drivers/media/dvb-frontends/stv090x.h

File Facts

System

Linux kernel

Corpus path

drivers/media/dvb-frontends/stv090x.h

Extension

.h

Size

2995 bytes

Lines

120

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.

• 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.
• Defines or uses C structs; map object ownership, embedded links, reference counts, and lock ownership.

Dependency Surface

• No C-style include directives detected by the generator.

Detected Declarations

• struct stv090x_config
• enum stv090x_demodulator
• enum stv090x_device
• enum stv090x_mode
• enum stv090x_tsmode
• enum stv090x_clkmode
• enum stv090x_i2crpt
• enum stv090x_adc_range

Annotated Snippet

struct stv090x_config {
	enum stv090x_device	device;
	enum stv090x_mode	demod_mode;
	enum stv090x_clkmode	clk_mode;
	enum stv090x_demodulator demod;

	u32 xtal; /* default: 8000000 */
	u8 address; /* default: 0x68 */

	u8 ts1_mode;
	u8 ts2_mode;
	u32 ts1_clk;
	u32 ts2_clk;

	u8 ts1_tei : 1;
	u8 ts2_tei : 1;

	enum stv090x_i2crpt	repeater_level;

	u8			tuner_bbgain; /* default: 10db */
	enum stv090x_adc_range	adc1_range; /* default: 2Vpp */
	enum stv090x_adc_range	adc2_range; /* default: 2Vpp */

	bool diseqc_envelope_mode;

	int (*tuner_init)(struct dvb_frontend *fe);
	int (*tuner_sleep)(struct dvb_frontend *fe);
	int (*tuner_set_mode)(struct dvb_frontend *fe, enum tuner_mode mode);
	int (*tuner_set_frequency)(struct dvb_frontend *fe, u32 frequency);
	int (*tuner_get_frequency)(struct dvb_frontend *fe, u32 *frequency);
	int (*tuner_set_bandwidth)(struct dvb_frontend *fe, u32 bandwidth);
	int (*tuner_get_bandwidth)(struct dvb_frontend *fe, u32 *bandwidth);
	int (*tuner_set_bbgain)(struct dvb_frontend *fe, u32 gain);
	int (*tuner_get_bbgain)(struct dvb_frontend *fe, u32 *gain);
	int (*tuner_set_refclk)(struct dvb_frontend *fe, u32 refclk);
	int (*tuner_get_status)(struct dvb_frontend *fe, u32 *status);
	void (*tuner_i2c_lock)(struct dvb_frontend *fe, int lock);

	/* dir = 0 -> output, dir = 1 -> input/open-drain */
	int (*set_gpio)(struct dvb_frontend *fe, u8 gpio, u8 dir, u8 value,
			u8 xor_value);

	struct dvb_frontend* (*get_dvb_frontend)(struct i2c_client *i2c);
};

#if IS_REACHABLE(CONFIG_DVB_STV090x)

struct dvb_frontend *stv090x_attach(struct stv090x_config *config,
				    struct i2c_adapter *i2c,
				    enum stv090x_demodulator demod);

#else

static inline struct dvb_frontend *stv090x_attach(const struct stv090x_config *config,
						  struct i2c_adapter *i2c,
						  enum stv090x_demodulator demod)
{
	printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__);
	return NULL;
}

#endif /* CONFIG_DVB_STV090x */

#endif /* __STV090x_H */

Annotation

• Detected declarations: `struct stv090x_config`, `enum stv090x_demodulator`, `enum stv090x_device`, `enum stv090x_mode`, `enum stv090x_tsmode`, `enum stv090x_clkmode`, `enum stv090x_i2crpt`, `enum stv090x_adc_range`.
• Atlas domain: Driver Families / drivers/media.
• Implementation status: source implementation candidate.

Implementation Notes

• This generated page is the file-by-file coverage layer; curated subsystem chapters should link here when they synthesize a multi-file control flow.
• Core OS pages should be promoted from atlas-only to deep-reviewed when they explain data structures, invariants, locking, lifecycle, and C implementation snippets.
• Driver-family pages are intentionally pattern-oriented unless they are part of the selected PCIe/NVMe representative device path.