drivers/media/pci/zoran/zoran_device.h

File Facts

System

Linux kernel

Corpus path

drivers/media/pci/zoran/zoran_device.h

Extension

.h

Size

1744 bytes

Lines

57

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.
• Touches IRQ or DMA behavior; this matters for the representative real-device path.
• 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

• No top-level syscall, struct, function, initcall, or export declaration detected by the generator.

Annotated Snippet

#ifndef __ZORAN_DEVICE_H__
#define __ZORAN_DEVICE_H__

/* general purpose I/O */
void GPIO(struct zoran *zr, int bit, unsigned int value);

/* codec (or actually: guest bus) access */
int post_office_wait(struct zoran *zr);
int post_office_write(struct zoran *zr, unsigned int guest, unsigned int reg,
		      unsigned int value);
int post_office_read(struct zoran *zr, unsigned int guest, unsigned int reg);

void jpeg_codec_sleep(struct zoran *zr, int sleep);
int jpeg_codec_reset(struct zoran *zr);

/* zr360x7 access to raw capture */
void zr36057_set_memgrab(struct zoran *zr, int mode);
int wait_grab_pending(struct zoran *zr);

/* interrupts */
void print_interrupts(struct zoran *zr);
void clear_interrupt_counters(struct zoran *zr);
irqreturn_t zoran_irq(int irq, void *dev_id);

/* JPEG codec access */
void jpeg_start(struct zoran *zr);
void zr36057_enable_jpg(struct zoran *zr, enum zoran_codec_mode mode);
void zoran_feed_stat_com(struct zoran *zr);

/* general */
void zoran_set_pci_master(struct zoran *zr, int set_master);
void zoran_init_hardware(struct zoran *zr);
void zr36057_restart(struct zoran *zr);

extern const struct zoran_format zoran_formats[];

extern int pass_through;

/* i2c */
#define decoder_call(zr, o, f, args...) \
	v4l2_subdev_call((zr)->decoder, o, f, ##args)
#define encoder_call(zr, o, f, args...) \
	v4l2_subdev_call((zr)->encoder, o, f, ##args)

#endif				/* __ZORAN_DEVICE_H__ */

Annotation

• Atlas domain: Driver Families / drivers/media.
• Implementation status: source implementation candidate.
• IRQ or DMA behavior appears here, which is relevant to the selected PCIe/NVMe device path.

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.