drivers/media/platform/intel/pxa_camera.c

Source file repositories/reference/linux-study-clean/drivers/media/platform/intel/pxa_camera.c

File Facts

System
Linux kernel
Corpus path
drivers/media/platform/intel/pxa_camera.c
Extension
.c
Size
66887 bytes
Lines
2471
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 pxa_mbus_pixelfmt {
	const char		*name;
	u32			fourcc;
	enum pxa_mbus_packing	packing;
	enum pxa_mbus_order	order;
	enum pxa_mbus_layout	layout;
	u8			bits_per_sample;
};

/**
 * struct pxa_mbus_lookup - Lookup FOURCC IDs by mediabus codes for pass-through
 * @code:	mediabus pixel-code
 * @fmt:	pixel format description
 */
struct pxa_mbus_lookup {
	u32	code;
	struct pxa_mbus_pixelfmt	fmt;
};

static const struct pxa_mbus_lookup mbus_fmt[] = {
{
	.code = MEDIA_BUS_FMT_YUYV8_2X8,
	.fmt = {
		.fourcc			= V4L2_PIX_FMT_YUYV,
		.name			= "YUYV",
		.bits_per_sample	= 8,
		.packing		= PXA_MBUS_PACKING_2X8_PADHI,
		.order			= PXA_MBUS_ORDER_LE,
		.layout			= PXA_MBUS_LAYOUT_PACKED,
	},
}, {
	.code = MEDIA_BUS_FMT_YVYU8_2X8,
	.fmt = {
		.fourcc			= V4L2_PIX_FMT_YVYU,
		.name			= "YVYU",
		.bits_per_sample	= 8,
		.packing		= PXA_MBUS_PACKING_2X8_PADHI,
		.order			= PXA_MBUS_ORDER_LE,
		.layout			= PXA_MBUS_LAYOUT_PACKED,
	},
}, {
	.code = MEDIA_BUS_FMT_UYVY8_2X8,
	.fmt = {
		.fourcc			= V4L2_PIX_FMT_UYVY,
		.name			= "UYVY",
		.bits_per_sample	= 8,
		.packing		= PXA_MBUS_PACKING_2X8_PADHI,
		.order			= PXA_MBUS_ORDER_LE,
		.layout			= PXA_MBUS_LAYOUT_PACKED,
	},
}, {
	.code = MEDIA_BUS_FMT_VYUY8_2X8,
	.fmt = {
		.fourcc			= V4L2_PIX_FMT_VYUY,
		.name			= "VYUY",
		.bits_per_sample	= 8,
		.packing		= PXA_MBUS_PACKING_2X8_PADHI,
		.order			= PXA_MBUS_ORDER_LE,
		.layout			= PXA_MBUS_LAYOUT_PACKED,
	},
}, {
	.code = MEDIA_BUS_FMT_RGB555_2X8_PADHI_LE,
	.fmt = {
		.fourcc			= V4L2_PIX_FMT_RGB555,
		.name			= "RGB555",
		.bits_per_sample	= 8,
		.packing		= PXA_MBUS_PACKING_2X8_PADHI,
		.order			= PXA_MBUS_ORDER_LE,
		.layout			= PXA_MBUS_LAYOUT_PACKED,
	},
}, {
	.code = MEDIA_BUS_FMT_RGB555_2X8_PADHI_BE,
	.fmt = {
		.fourcc			= V4L2_PIX_FMT_RGB555X,
		.name			= "RGB555X",
		.bits_per_sample	= 8,
		.packing		= PXA_MBUS_PACKING_2X8_PADHI,
		.order			= PXA_MBUS_ORDER_BE,
		.layout			= PXA_MBUS_LAYOUT_PACKED,
	},
}, {
	.code = MEDIA_BUS_FMT_RGB565_2X8_LE,
	.fmt = {
		.fourcc			= V4L2_PIX_FMT_RGB565,
		.name			= "RGB565",
		.bits_per_sample	= 8,
		.packing		= PXA_MBUS_PACKING_2X8_PADHI,
		.order			= PXA_MBUS_ORDER_LE,
		.layout			= PXA_MBUS_LAYOUT_PACKED,
	},

Annotation

Implementation Notes