drivers/media/platform/raspberrypi/rp1-cfe/pisp-fe.h

File Facts

System

Linux kernel

Corpus path

drivers/media/platform/raspberrypi/rp1-cfe/pisp-fe.h

Extension

.h

Size

1298 bytes

Lines

54

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

• linux/debugfs.h
• linux/io.h
• linux/types.h
• linux/videodev2.h
• media/media-device.h
• media/v4l2-device.h
• media/v4l2-subdev.h
• linux/media/raspberrypi/pisp_fe_config.h

Detected Declarations

• struct pisp_fe_device
• enum pisp_fe_pads

Annotated Snippet

struct pisp_fe_device {
	/* Parent V4l2 device */
	struct v4l2_device *v4l2_dev;
	void __iomem *base;
	u32 hw_revision;

	u16 inframe_count;
	struct media_pad pad[FE_NUM_PADS];
	struct v4l2_subdev sd;
};

void pisp_fe_isr(struct pisp_fe_device *fe, bool *sof, bool *eof);
int pisp_fe_validate_config(struct pisp_fe_device *fe,
			    struct pisp_fe_config *cfg,
			    struct v4l2_format const *f0,
			    struct v4l2_format const *f1);
void pisp_fe_submit_job(struct pisp_fe_device *fe, struct vb2_buffer **vb2_bufs,
			struct pisp_fe_config *cfg);
void pisp_fe_start(struct pisp_fe_device *fe);
void pisp_fe_stop(struct pisp_fe_device *fe);
int pisp_fe_init(struct pisp_fe_device *fe, struct dentry *debugfs);
void pisp_fe_uninit(struct pisp_fe_device *fe);

#endif

Annotation

• Immediate include surface: `linux/debugfs.h`, `linux/io.h`, `linux/types.h`, `linux/videodev2.h`, `media/media-device.h`, `media/v4l2-device.h`, `media/v4l2-subdev.h`, `linux/media/raspberrypi/pisp_fe_config.h`.
• Detected declarations: `struct pisp_fe_device`, `enum pisp_fe_pads`.
• 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.