include/uapi/linux/media/raspberrypi/pisp_common.h

Source file repositories/reference/linux-study-clean/include/uapi/linux/media/raspberrypi/pisp_common.h

File Facts

System
Linux kernel
Corpus path
include/uapi/linux/media/raspberrypi/pisp_common.h
Extension
.h
Size
7755 bytes
Lines
203
Domain
Core OS
Bucket
Core Kernel Interface
Inferred role
Core OS: implementation source
Status
source implementation candidate

Why This File Exists

Core operating-system implementation surface: boot, tasks, memory, VFS, syscall-facing interfaces, synchronization, credentials, and isolation.

Dependency Surface

Detected Declarations

Annotated Snippet

struct pisp_image_format_config {
	/* size in pixels */
	__u16 width;
	__u16 height;
	/* must match struct pisp_image_format below */
	__u32 format;
	__s32 stride;
	/* some planar image formats will need a second stride */
	__s32 stride2;
} __attribute__((packed));

enum pisp_bayer_order {
	/*
	 * Note how bayer_order&1 tells you if G is on the even pixels of the
	 * checkerboard or not, and bayer_order&2 tells you if R is on the even
	 * rows or is swapped with B. Note that if the top (of the 8) bits is
	 * set, this denotes a monochrome or greyscale image, and the lower bits
	 * should all be ignored.
	 */
	PISP_BAYER_ORDER_RGGB = 0,
	PISP_BAYER_ORDER_GBRG = 1,
	PISP_BAYER_ORDER_BGGR = 2,
	PISP_BAYER_ORDER_GRBG = 3,
	PISP_BAYER_ORDER_GREYSCALE = 128
};

enum pisp_image_format {
	/*
	 * Precise values are mostly tbd. Generally these will be portmanteau
	 * values comprising bit fields and flags. This format must be shared
	 * throughout the PiSP.
	 */
	PISP_IMAGE_FORMAT_BPS_8 = 0x00000000,
	PISP_IMAGE_FORMAT_BPS_10 = 0x00000001,
	PISP_IMAGE_FORMAT_BPS_12 = 0x00000002,
	PISP_IMAGE_FORMAT_BPS_16 = 0x00000003,
	PISP_IMAGE_FORMAT_BPS_MASK = 0x00000003,

	PISP_IMAGE_FORMAT_PLANARITY_INTERLEAVED = 0x00000000,
	PISP_IMAGE_FORMAT_PLANARITY_SEMI_PLANAR = 0x00000010,
	PISP_IMAGE_FORMAT_PLANARITY_PLANAR = 0x00000020,
	PISP_IMAGE_FORMAT_PLANARITY_MASK = 0x00000030,

	PISP_IMAGE_FORMAT_SAMPLING_444 = 0x00000000,
	PISP_IMAGE_FORMAT_SAMPLING_422 = 0x00000100,
	PISP_IMAGE_FORMAT_SAMPLING_420 = 0x00000200,
	PISP_IMAGE_FORMAT_SAMPLING_MASK = 0x00000300,

	PISP_IMAGE_FORMAT_ORDER_NORMAL = 0x00000000,
	PISP_IMAGE_FORMAT_ORDER_SWAPPED = 0x00001000,

	PISP_IMAGE_FORMAT_SHIFT_0 = 0x00000000,
	PISP_IMAGE_FORMAT_SHIFT_1 = 0x00010000,
	PISP_IMAGE_FORMAT_SHIFT_2 = 0x00020000,
	PISP_IMAGE_FORMAT_SHIFT_3 = 0x00030000,
	PISP_IMAGE_FORMAT_SHIFT_4 = 0x00040000,
	PISP_IMAGE_FORMAT_SHIFT_5 = 0x00050000,
	PISP_IMAGE_FORMAT_SHIFT_6 = 0x00060000,
	PISP_IMAGE_FORMAT_SHIFT_7 = 0x00070000,
	PISP_IMAGE_FORMAT_SHIFT_8 = 0x00080000,
	PISP_IMAGE_FORMAT_SHIFT_MASK = 0x000f0000,

	PISP_IMAGE_FORMAT_BPP_32 = 0x00100000,

	PISP_IMAGE_FORMAT_UNCOMPRESSED = 0x00000000,
	PISP_IMAGE_FORMAT_COMPRESSION_MODE_1 = 0x01000000,
	PISP_IMAGE_FORMAT_COMPRESSION_MODE_2 = 0x02000000,
	PISP_IMAGE_FORMAT_COMPRESSION_MODE_3 = 0x03000000,
	PISP_IMAGE_FORMAT_COMPRESSION_MASK = 0x03000000,

	PISP_IMAGE_FORMAT_HOG_SIGNED = 0x04000000,
	PISP_IMAGE_FORMAT_HOG_UNSIGNED = 0x08000000,
	PISP_IMAGE_FORMAT_INTEGRAL_IMAGE = 0x10000000,
	PISP_IMAGE_FORMAT_WALLPAPER_ROLL = 0x20000000,
	PISP_IMAGE_FORMAT_THREE_CHANNEL = 0x40000000,

	/* Lastly a few specific instantiations of the above. */
	PISP_IMAGE_FORMAT_SINGLE_16 = PISP_IMAGE_FORMAT_BPS_16,
	PISP_IMAGE_FORMAT_THREE_16 = PISP_IMAGE_FORMAT_BPS_16 |
				     PISP_IMAGE_FORMAT_THREE_CHANNEL
};

#define PISP_IMAGE_FORMAT_BPS_8(fmt)                                           \
	(((fmt) & PISP_IMAGE_FORMAT_BPS_MASK) == PISP_IMAGE_FORMAT_BPS_8)
#define PISP_IMAGE_FORMAT_BPS_10(fmt)                                          \
	(((fmt) & PISP_IMAGE_FORMAT_BPS_MASK) == PISP_IMAGE_FORMAT_BPS_10)
#define PISP_IMAGE_FORMAT_BPS_12(fmt)                                          \
	(((fmt) & PISP_IMAGE_FORMAT_BPS_MASK) == PISP_IMAGE_FORMAT_BPS_12)
#define PISP_IMAGE_FORMAT_BPS_16(fmt)                                          \
	(((fmt) & PISP_IMAGE_FORMAT_BPS_MASK) == PISP_IMAGE_FORMAT_BPS_16)

Annotation

Implementation Notes