cregit-Linux how code gets into the kernel

Release 4.11 drivers/media/platform/soc_camera/soc_mediabus.c

/*
 * soc-camera media bus helper routines
 *
 * Copyright (C) 2009, Guennadi Liakhovetski <g.liakhovetski@gmx.de>
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 2 as
 * published by the Free Software Foundation.
 */

#include <linux/kernel.h>
#include <linux/module.h>

#include <media/v4l2-device.h>
#include <media/v4l2-mediabus.h>
#include <media/drv-intf/soc_mediabus.h>


static const struct soc_mbus_lookup mbus_fmt[] = {
{
	.code = MEDIA_BUS_FMT_YUYV8_2X8,
	.fmt = {
		.fourcc			= V4L2_PIX_FMT_YUYV,
		.name			= "YUYV",
		.bits_per_sample	= 8,
		.packing		= SOC_MBUS_PACKING_2X8_PADHI,
		.order			= SOC_MBUS_ORDER_LE,
		.layout			= SOC_MBUS_LAYOUT_PACKED,
        },
}, {
	.code = MEDIA_BUS_FMT_YVYU8_2X8,
	.fmt = {
		.fourcc			= V4L2_PIX_FMT_YVYU,
		.name			= "YVYU",
		.bits_per_sample	= 8,
		.packing		= SOC_MBUS_PACKING_2X8_PADHI,
		.order			= SOC_MBUS_ORDER_LE,
		.layout			= SOC_MBUS_LAYOUT_PACKED,
        },
}, {
	.code = MEDIA_BUS_FMT_UYVY8_2X8,
	.fmt = {
		.fourcc			= V4L2_PIX_FMT_UYVY,
		.name			= "UYVY",
		.bits_per_sample	= 8,
		.packing		= SOC_MBUS_PACKING_2X8_PADHI,
		.order			= SOC_MBUS_ORDER_LE,
		.layout			= SOC_MBUS_LAYOUT_PACKED,
        },
}, {
	.code = MEDIA_BUS_FMT_VYUY8_2X8,
	.fmt = {
		.fourcc			= V4L2_PIX_FMT_VYUY,
		.name			= "VYUY",
		.bits_per_sample	= 8,
		.packing		= SOC_MBUS_PACKING_2X8_PADHI,
		.order			= SOC_MBUS_ORDER_LE,
		.layout			= SOC_MBUS_LAYOUT_PACKED,
        },
}, {
	.code = MEDIA_BUS_FMT_RGB555_2X8_PADHI_LE,
	.fmt = {
		.fourcc			= V4L2_PIX_FMT_RGB555,
		.name			= "RGB555",
		.bits_per_sample	= 8,
		.packing		= SOC_MBUS_PACKING_2X8_PADHI,
		.order			= SOC_MBUS_ORDER_LE,
		.layout			= SOC_MBUS_LAYOUT_PACKED,
        },
}, {
	.code = MEDIA_BUS_FMT_RGB555_2X8_PADHI_BE,
	.fmt = {
		.fourcc			= V4L2_PIX_FMT_RGB555X,
		.name			= "RGB555X",
		.bits_per_sample	= 8,
		.packing		= SOC_MBUS_PACKING_2X8_PADHI,
		.order			= SOC_MBUS_ORDER_BE,
		.layout			= SOC_MBUS_LAYOUT_PACKED,
        },
}, {
	.code = MEDIA_BUS_FMT_RGB565_2X8_LE,
	.fmt = {
		.fourcc			= V4L2_PIX_FMT_RGB565,
		.name			= "RGB565",
		.bits_per_sample	= 8,
		.packing		= SOC_MBUS_PACKING_2X8_PADHI,
		.order			= SOC_MBUS_ORDER_LE,
		.layout			= SOC_MBUS_LAYOUT_PACKED,
        },
}, {
	.code = MEDIA_BUS_FMT_RGB565_2X8_BE,
	.fmt = {
		.fourcc			= V4L2_PIX_FMT_RGB565X,
		.name			= "RGB565X",
		.bits_per_sample	= 8,
		.packing		= SOC_MBUS_PACKING_2X8_PADHI,
		.order			= SOC_MBUS_ORDER_BE,
		.layout			= SOC_MBUS_LAYOUT_PACKED,
        },
}, {
	.code = MEDIA_BUS_FMT_RGB666_1X18,
	.fmt = {
		.fourcc			= V4L2_PIX_FMT_RGB32,
		.name			= "RGB666/32bpp",
		.bits_per_sample	= 18,
		.packing		= SOC_MBUS_PACKING_EXTEND32,
		.order			= SOC_MBUS_ORDER_LE,
        },
}, {
	.code = MEDIA_BUS_FMT_RGB888_1X24,
	.fmt = {
		.fourcc			= V4L2_PIX_FMT_RGB32,
		.name			= "RGB888/32bpp",
		.bits_per_sample	= 24,
		.packing		= SOC_MBUS_PACKING_EXTEND32,
		.order			= SOC_MBUS_ORDER_LE,
        },
}, {
	.code = MEDIA_BUS_FMT_RGB888_2X12_BE,
	.fmt = {
		.fourcc			= V4L2_PIX_FMT_RGB32,
		.name			= "RGB888/32bpp",
		.bits_per_sample	= 12,
		.packing		= SOC_MBUS_PACKING_EXTEND32,
		.order			= SOC_MBUS_ORDER_BE,
        },
}, {
	.code = MEDIA_BUS_FMT_RGB888_2X12_LE,
	.fmt = {
		.fourcc			= V4L2_PIX_FMT_RGB32,
		.name			= "RGB888/32bpp",
		.bits_per_sample	= 12,
		.packing		= SOC_MBUS_PACKING_EXTEND32,
		.order			= SOC_MBUS_ORDER_LE,
        },
}, {
	.code = MEDIA_BUS_FMT_SBGGR8_1X8,
	.fmt = {
		.fourcc			= V4L2_PIX_FMT_SBGGR8,
		.name			= "Bayer 8 BGGR",
		.bits_per_sample	= 8,
		.packing		= SOC_MBUS_PACKING_NONE,
		.order			= SOC_MBUS_ORDER_LE,
		.layout			= SOC_MBUS_LAYOUT_PACKED,
        },
}, {
	.code = MEDIA_BUS_FMT_SBGGR10_1X10,
	.fmt = {
		.fourcc			= V4L2_PIX_FMT_SBGGR10,
		.name			= "Bayer 10 BGGR",
		.bits_per_sample	= 10,
		.packing		= SOC_MBUS_PACKING_EXTEND16,
		.order			= SOC_MBUS_ORDER_LE,
		.layout			= SOC_MBUS_LAYOUT_PACKED,
        },
}, {
	.code = MEDIA_BUS_FMT_Y8_1X8,
	.fmt = {
		.fourcc			= V4L2_PIX_FMT_GREY,
		.name			= "Grey",
		.bits_per_sample	= 8,
		.packing		= SOC_MBUS_PACKING_NONE,
		.order			= SOC_MBUS_ORDER_LE,
		.layout			= SOC_MBUS_LAYOUT_PACKED,
        },
}, {
	.code = MEDIA_BUS_FMT_Y10_1X10,
	.fmt = {
		.fourcc			= V4L2_PIX_FMT_Y10,
		.name			= "Grey 10bit",
		.bits_per_sample	= 10,
		.packing		= SOC_MBUS_PACKING_EXTEND16,
		.order			= SOC_MBUS_ORDER_LE,
		.layout			= SOC_MBUS_LAYOUT_PACKED,
        },
}, {
	.code = MEDIA_BUS_FMT_SBGGR10_2X8_PADHI_LE,
	.fmt = {
		.fourcc			= V4L2_PIX_FMT_SBGGR10,
		.name			= "Bayer 10 BGGR",
		.bits_per_sample	= 8,
		.packing		= SOC_MBUS_PACKING_2X8_PADHI,
		.order			= SOC_MBUS_ORDER_LE,
		.layout			= SOC_MBUS_LAYOUT_PACKED,
        },
}, {
	.code = MEDIA_BUS_FMT_SBGGR10_2X8_PADLO_LE,
	.fmt = {
		.fourcc			= V4L2_PIX_FMT_SBGGR10,
		.name			= "Bayer 10 BGGR",
		.bits_per_sample	= 8,
		.packing		= SOC_MBUS_PACKING_2X8_PADLO,
		.order			= SOC_MBUS_ORDER_LE,
		.layout			= SOC_MBUS_LAYOUT_PACKED,
        },
}, {
	.code = MEDIA_BUS_FMT_SBGGR10_2X8_PADHI_BE,
	.fmt = {
		.fourcc			= V4L2_PIX_FMT_SBGGR10,
		.name			= "Bayer 10 BGGR",
		.bits_per_sample	= 8,
		.packing		= SOC_MBUS_PACKING_2X8_PADHI,
		.order			= SOC_MBUS_ORDER_BE,
		.layout			= SOC_MBUS_LAYOUT_PACKED,
        },
}, {
	.code = MEDIA_BUS_FMT_SBGGR10_2X8_PADLO_BE,
	.fmt = {
		.fourcc			= V4L2_PIX_FMT_SBGGR10,
		.name			= "Bayer 10 BGGR",
		.bits_per_sample	= 8,
		.packing		= SOC_MBUS_PACKING_2X8_PADLO,
		.order			= SOC_MBUS_ORDER_BE,
		.layout			= SOC_MBUS_LAYOUT_PACKED,
        },
}, {
	.code = MEDIA_BUS_FMT_JPEG_1X8,
	.fmt = {
		.fourcc                 = V4L2_PIX_FMT_JPEG,
		.name                   = "JPEG",
		.bits_per_sample        = 8,
		.packing                = SOC_MBUS_PACKING_VARIABLE,
		.order                  = SOC_MBUS_ORDER_LE,
		.layout			= SOC_MBUS_LAYOUT_PACKED,
        },
}, {
	.code = MEDIA_BUS_FMT_RGB444_2X8_PADHI_BE,
	.fmt = {
		.fourcc			= V4L2_PIX_FMT_RGB444,
		.name			= "RGB444",
		.bits_per_sample	= 8,
		.packing		= SOC_MBUS_PACKING_2X8_PADHI,
		.order			= SOC_MBUS_ORDER_BE,
		.layout			= SOC_MBUS_LAYOUT_PACKED,
        },
}, {
	.code = MEDIA_BUS_FMT_YUYV8_1_5X8,
	.fmt = {
		.fourcc			= V4L2_PIX_FMT_YUV420,
		.name			= "YUYV 4:2:0",
		.bits_per_sample	= 8,
		.packing		= SOC_MBUS_PACKING_1_5X8,
		.order			= SOC_MBUS_ORDER_LE,
		.layout			= SOC_MBUS_LAYOUT_PACKED,
        },
}, {
	.code = MEDIA_BUS_FMT_YVYU8_1_5X8,
	.fmt = {
		.fourcc			= V4L2_PIX_FMT_YVU420,
		.name			= "YVYU 4:2:0",
		.bits_per_sample	= 8,
		.packing		= SOC_MBUS_PACKING_1_5X8,
		.order			= SOC_MBUS_ORDER_LE,
		.layout			= SOC_MBUS_LAYOUT_PACKED,
        },
}, {
	.code = MEDIA_BUS_FMT_UYVY8_1X16,
	.fmt = {
		.fourcc			= V4L2_PIX_FMT_UYVY,
		.name			= "UYVY 16bit",
		.bits_per_sample	= 16,
		.packing		= SOC_MBUS_PACKING_EXTEND16,
		.order			= SOC_MBUS_ORDER_LE,
		.layout			= SOC_MBUS_LAYOUT_PACKED,
        },
}, {
	.code = MEDIA_BUS_FMT_VYUY8_1X16,
	.fmt = {
		.fourcc			= V4L2_PIX_FMT_VYUY,
		.name			= "VYUY 16bit",
		.bits_per_sample	= 16,
		.packing		= SOC_MBUS_PACKING_EXTEND16,
		.order			= SOC_MBUS_ORDER_LE,
		.layout			= SOC_MBUS_LAYOUT_PACKED,
        },
}, {
	.code = MEDIA_BUS_FMT_YUYV8_1X16,
	.fmt = {
		.fourcc			= V4L2_PIX_FMT_YUYV,
		.name			= "YUYV 16bit",
		.bits_per_sample	= 16,
		.packing		= SOC_MBUS_PACKING_EXTEND16,
		.order			= SOC_MBUS_ORDER_LE,
		.layout			= SOC_MBUS_LAYOUT_PACKED,
        },
}, {
	.code = MEDIA_BUS_FMT_YVYU8_1X16,
	.fmt = {
		.fourcc			= V4L2_PIX_FMT_YVYU,
		.name			= "YVYU 16bit",
		.bits_per_sample	= 16,
		.packing		= SOC_MBUS_PACKING_EXTEND16,
		.order			= SOC_MBUS_ORDER_LE,
		.layout			= SOC_MBUS_LAYOUT_PACKED,
        },
}, {
	.code = MEDIA_BUS_FMT_SGRBG8_1X8,
	.fmt = {
		.fourcc			= V4L2_PIX_FMT_SGRBG8,
		.name			= "Bayer 8 GRBG",
		.bits_per_sample	= 8,
		.packing		= SOC_MBUS_PACKING_NONE,
		.order			= SOC_MBUS_ORDER_LE,
		.layout			= SOC_MBUS_LAYOUT_PACKED,
        },
}, {
	.code = MEDIA_BUS_FMT_SGRBG10_DPCM8_1X8,
	.fmt = {
		.fourcc			= V4L2_PIX_FMT_SGRBG10DPCM8,
		.name			= "Bayer 10 BGGR DPCM 8",
		.bits_per_sample	= 8,
		.packing		= SOC_MBUS_PACKING_NONE,
		.order			= SOC_MBUS_ORDER_LE,
		.layout			= SOC_MBUS_LAYOUT_PACKED,
        },
}, {
	.code = MEDIA_BUS_FMT_SGBRG10_1X10,
	.fmt = {
		.fourcc			= V4L2_PIX_FMT_SGBRG10,
		.name			= "Bayer 10 GBRG",
		.bits_per_sample	= 10,
		.packing		= SOC_MBUS_PACKING_EXTEND16,
		.order			= SOC_MBUS_ORDER_LE,
		.layout			= SOC_MBUS_LAYOUT_PACKED,
        },
}, {
	.code = MEDIA_BUS_FMT_SGRBG10_1X10,
	.fmt = {
		.fourcc			= V4L2_PIX_FMT_SGRBG10,
		.name			= "Bayer 10 GRBG",
		.bits_per_sample	= 10,
		.packing		= SOC_MBUS_PACKING_EXTEND16,
		.order			= SOC_MBUS_ORDER_LE,
		.layout			= SOC_MBUS_LAYOUT_PACKED,
        },
}, {
	.code = MEDIA_BUS_FMT_SRGGB10_1X10,
	.fmt = {
		.fourcc			= V4L2_PIX_FMT_SRGGB10,
		.name			= "Bayer 10 RGGB",
		.bits_per_sample	= 10,
		.packing		= SOC_MBUS_PACKING_EXTEND16,
		.order			= SOC_MBUS_ORDER_LE,
		.layout			= SOC_MBUS_LAYOUT_PACKED,
        },
}, {
	.code = MEDIA_BUS_FMT_SBGGR12_1X12,
	.fmt = {
		.fourcc			= V4L2_PIX_FMT_SBGGR12,
		.name			= "Bayer 12 BGGR",
		.bits_per_sample	= 12,
		.packing		= SOC_MBUS_PACKING_EXTEND16,
		.order			= SOC_MBUS_ORDER_LE,
		.layout			= SOC_MBUS_LAYOUT_PACKED,
        },
}, {
	.code = MEDIA_BUS_FMT_SGBRG12_1X12,
	.fmt = {
		.fourcc			= V4L2_PIX_FMT_SGBRG12,
		.name			= "Bayer 12 GBRG",
		.bits_per_sample	= 12,
		.packing		= SOC_MBUS_PACKING_EXTEND16,
		.order			= SOC_MBUS_ORDER_LE,
		.layout			= SOC_MBUS_LAYOUT_PACKED,
        },
}, {
	.code = MEDIA_BUS_FMT_SGRBG12_1X12,
	.fmt = {
		.fourcc			= V4L2_PIX_FMT_SGRBG12,
		.name			= "Bayer 12 GRBG",
		.bits_per_sample	= 12,
		.packing		= SOC_MBUS_PACKING_EXTEND16,
		.order			= SOC_MBUS_ORDER_LE,
		.layout			= SOC_MBUS_LAYOUT_PACKED,
        },
}, {
	.code = MEDIA_BUS_FMT_SRGGB12_1X12,
	.fmt = {
		.fourcc			= V4L2_PIX_FMT_SRGGB12,
		.name			= "Bayer 12 RGGB",
		.bits_per_sample	= 12,
		.packing		= SOC_MBUS_PACKING_EXTEND16,
		.order			= SOC_MBUS_ORDER_LE,
		.layout			= SOC_MBUS_LAYOUT_PACKED,
        },
},
};


int soc_mbus_samples_per_pixel(const struct soc_mbus_pixelfmt *mf, unsigned int *numerator, unsigned int *denominator) { switch (mf->packing) { case SOC_MBUS_PACKING_NONE: case SOC_MBUS_PACKING_EXTEND16: *numerator = 1; *denominator = 1; return 0; case SOC_MBUS_PACKING_EXTEND32: *numerator = 1; *denominator = 1; return 0; case SOC_MBUS_PACKING_2X8_PADHI: case SOC_MBUS_PACKING_2X8_PADLO: *numerator = 2; *denominator = 1; return 0; case SOC_MBUS_PACKING_1_5X8: *numerator = 3; *denominator = 2; return 0; case SOC_MBUS_PACKING_VARIABLE: *numerator = 0; *denominator = 1; return 0; } return -EINVAL; }

Contributors

PersonTokensPropCommitsCommitProp
Guennadi Liakhovetski5747.90%125.00%
Alberto Panizzo4033.61%125.00%
Phil Edworthy1613.45%125.00%
Kassey Li65.04%125.00%
Total119100.00%4100.00%

EXPORT_SYMBOL(soc_mbus_samples_per_pixel);
s32 soc_mbus_bytes_per_line(u32 width, const struct soc_mbus_pixelfmt *mf) { if (mf->layout != SOC_MBUS_LAYOUT_PACKED) return width * mf->bits_per_sample / 8; switch (mf->packing) { case SOC_MBUS_PACKING_NONE: return width * mf->bits_per_sample / 8; case SOC_MBUS_PACKING_2X8_PADHI: case SOC_MBUS_PACKING_2X8_PADLO: case SOC_MBUS_PACKING_EXTEND16: return width * 2; case SOC_MBUS_PACKING_1_5X8: return width * 3 / 2; case SOC_MBUS_PACKING_VARIABLE: return 0; case SOC_MBUS_PACKING_EXTEND32: return width * 4; } return -EINVAL; }

Contributors

PersonTokensPropCommitsCommitProp
Guennadi Liakhovetski6266.67%240.00%
Laurent Pinchart1718.28%120.00%
Phil Edworthy88.60%120.00%
Kassey Li66.45%120.00%
Total93100.00%5100.00%

EXPORT_SYMBOL(soc_mbus_bytes_per_line);
s32 soc_mbus_image_size(const struct soc_mbus_pixelfmt *mf, u32 bytes_per_line, u32 height) { if (mf->layout == SOC_MBUS_LAYOUT_PACKED) return bytes_per_line * height; switch (mf->packing) { case SOC_MBUS_PACKING_2X8_PADHI: case SOC_MBUS_PACKING_2X8_PADLO: return bytes_per_line * height * 2; case SOC_MBUS_PACKING_1_5X8: return bytes_per_line * height * 3 / 2; default: return -EINVAL; } }

Contributors

PersonTokensPropCommitsCommitProp
Laurent Pinchart68100.00%1100.00%
Total68100.00%1100.00%

EXPORT_SYMBOL(soc_mbus_image_size);
const struct soc_mbus_pixelfmt *soc_mbus_find_fmtdesc( u32 code, const struct soc_mbus_lookup *lookup, int n) { int i; for (i = 0; i < n; i++) if (lookup[i].code == code) return &lookup[i].fmt; return NULL; }

Contributors

PersonTokensPropCommitsCommitProp
Guennadi Liakhovetski5796.61%250.00%
Boris Brezillon11.69%125.00%
Baruch Siach11.69%125.00%
Total59100.00%4100.00%

EXPORT_SYMBOL(soc_mbus_find_fmtdesc);
const struct soc_mbus_pixelfmt *soc_mbus_get_fmtdesc( u32 code) { return soc_mbus_find_fmtdesc(code, mbus_fmt, ARRAY_SIZE(mbus_fmt)); }

Contributors

PersonTokensPropCommitsCommitProp
Guennadi Liakhovetski2395.83%266.67%
Boris Brezillon14.17%133.33%
Total24100.00%3100.00%

EXPORT_SYMBOL(soc_mbus_get_fmtdesc);
unsigned int soc_mbus_config_compatible(const struct v4l2_mbus_config *cfg, unsigned int flags) { unsigned long common_flags; bool hsync = true, vsync = true, pclk, data, mode; bool mipi_lanes, mipi_clock; common_flags = cfg->flags & flags; switch (cfg->type) { case V4L2_MBUS_PARALLEL: hsync = common_flags & (V4L2_MBUS_HSYNC_ACTIVE_HIGH | V4L2_MBUS_HSYNC_ACTIVE_LOW); vsync = common_flags & (V4L2_MBUS_VSYNC_ACTIVE_HIGH | V4L2_MBUS_VSYNC_ACTIVE_LOW); case V4L2_MBUS_BT656: pclk = common_flags & (V4L2_MBUS_PCLK_SAMPLE_RISING | V4L2_MBUS_PCLK_SAMPLE_FALLING); data = common_flags & (V4L2_MBUS_DATA_ACTIVE_HIGH | V4L2_MBUS_DATA_ACTIVE_LOW); mode = common_flags & (V4L2_MBUS_MASTER | V4L2_MBUS_SLAVE); return (!hsync || !vsync || !pclk || !data || !mode) ? 0 : common_flags; case V4L2_MBUS_CSI2: mipi_lanes = common_flags & V4L2_MBUS_CSI2_LANES; mipi_clock = common_flags & (V4L2_MBUS_CSI2_NONCONTINUOUS_CLOCK | V4L2_MBUS_CSI2_CONTINUOUS_CLOCK); return (!mipi_lanes || !mipi_clock) ? 0 : common_flags; } return 0; }

Contributors

PersonTokensPropCommitsCommitProp
Guennadi Liakhovetski169100.00%1100.00%
Total169100.00%1100.00%

EXPORT_SYMBOL(soc_mbus_config_compatible);
static int __init soc_mbus_init(void) { return 0; }

Contributors

PersonTokensPropCommitsCommitProp
Guennadi Liakhovetski12100.00%1100.00%
Total12100.00%1100.00%


static void __exit soc_mbus_exit(void) { }

Contributors

PersonTokensPropCommitsCommitProp
Guennadi Liakhovetski8100.00%1100.00%
Total8100.00%1100.00%

module_init(soc_mbus_init); module_exit(soc_mbus_exit); MODULE_DESCRIPTION("soc-camera media bus interface"); MODULE_AUTHOR("Guennadi Liakhovetski <g.liakhovetski@gmx.de>"); MODULE_LICENSE("GPL v2");

Overall Contributors

PersonTokensPropCommitsCommitProp
Guennadi Liakhovetski161774.65%640.00%
Laurent Pinchart25511.77%320.00%
Phil Edworthy1687.76%16.67%
Alberto Panizzo452.08%16.67%
Kassey Li401.85%16.67%
Boris Brezillon391.80%16.67%
Baruch Siach10.05%16.67%
Mauro Carvalho Chehab10.05%16.67%
Total2166100.00%15100.00%
Information contained on this website is for historical information purposes only and does not indicate or represent copyright ownership.
Created with cregit.