drivers/media/pci/cx23885/altera-ci.h

Source file repositories/reference/linux-study-clean/drivers/media/pci/cx23885/altera-ci.h

File Facts

System
Linux kernel
Corpus path
drivers/media/pci/cx23885/altera-ci.h
Extension
.h
Size
2120 bytes
Lines
86
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 altera_ci_config {
	void *dev;/* main dev, for example cx23885_dev */
	void *adapter;/* for CI to connect to */
	struct dvb_demux *demux;/* for hardware PID filter to connect to */
	int (*fpga_rw) (void *dev, int ad_rg, int val, int rw);
};

#if IS_REACHABLE(CONFIG_MEDIA_ALTERA_CI)

extern int altera_ci_init(struct altera_ci_config *config, int ci_nr);
extern void altera_ci_release(void *dev, int ci_nr);
extern int altera_ci_irq(void *dev);
extern int altera_ci_tuner_reset(void *dev, int ci_nr);

#else

static inline int altera_ci_init(struct altera_ci_config *config, int ci_nr)
{
	pr_warn("%s: driver disabled by Kconfig\n", __func__);
	return 0;
}

static inline void altera_ci_release(void *dev, int ci_nr)
{
	pr_warn("%s: driver disabled by Kconfig\n", __func__);
}

static inline int altera_ci_irq(void *dev)
{
	pr_warn("%s: driver disabled by Kconfig\n", __func__);
	return 0;
}

static inline int altera_ci_tuner_reset(void *dev, int ci_nr)
{
	pr_warn("%s: driver disabled by Kconfig\n", __func__);
	return 0;
}

#endif
#if 0
static inline int altera_hw_filt_init(struct altera_ci_config *config,
							int hw_filt_nr)
{
	pr_warn("%s: driver disabled by Kconfig\n", __func__);
	return 0;
}

static inline void altera_hw_filt_release(void *dev, int filt_nr)
{
	pr_warn("%s: driver disabled by Kconfig\n", __func__);
}

static inline int altera_pid_feed_control(void *dev, int filt_nr,
		struct dvb_demux_feed *dvbdmxfeed, int onoff)
{
	pr_warn("%s: driver disabled by Kconfig\n", __func__);
	return 0;
}

#endif /* CONFIG_MEDIA_ALTERA_CI */

#endif /* __ALTERA_CI_H */

Annotation

Implementation Notes