![Guennadi Liakhovetski](/assets/img/avatar_default.png)
Endianness notation is meaningless for 8 bit YUYV codes. Switch pixel code names to explicitly state the order of colour components in the data stream. Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
174 lines
4.5 KiB
C
174 lines
4.5 KiB
C
/*
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* soc-camera media bus helper routines
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*
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* Copyright (C) 2009, Guennadi Liakhovetski <g.liakhovetski@gmx.de>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*/
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#include <linux/kernel.h>
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#include <linux/module.h>
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#include <media/v4l2-device.h>
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#include <media/v4l2-mediabus.h>
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#include <media/soc_mediabus.h>
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#define MBUS_IDX(f) (V4L2_MBUS_FMT_ ## f - V4L2_MBUS_FMT_FIXED - 1)
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static const struct soc_mbus_pixelfmt mbus_fmt[] = {
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[MBUS_IDX(YUYV8_2X8)] = {
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.fourcc = V4L2_PIX_FMT_YUYV,
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.name = "YUYV",
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.bits_per_sample = 8,
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.packing = SOC_MBUS_PACKING_2X8_PADHI,
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.order = SOC_MBUS_ORDER_LE,
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},
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[MBUS_IDX(YVYU8_2X8)] = {
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.fourcc = V4L2_PIX_FMT_YVYU,
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.name = "YVYU",
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.bits_per_sample = 8,
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.packing = SOC_MBUS_PACKING_2X8_PADHI,
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.order = SOC_MBUS_ORDER_LE,
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},
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[MBUS_IDX(UYVY8_2X8)] = {
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.fourcc = V4L2_PIX_FMT_UYVY,
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.name = "UYVY",
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.bits_per_sample = 8,
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.packing = SOC_MBUS_PACKING_2X8_PADHI,
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.order = SOC_MBUS_ORDER_LE,
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},
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[MBUS_IDX(VYUY8_2X8)] = {
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.fourcc = V4L2_PIX_FMT_VYUY,
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.name = "VYUY",
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.bits_per_sample = 8,
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.packing = SOC_MBUS_PACKING_2X8_PADHI,
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.order = SOC_MBUS_ORDER_LE,
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},
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[MBUS_IDX(RGB555_2X8_PADHI_LE)] = {
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.fourcc = V4L2_PIX_FMT_RGB555,
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.name = "RGB555",
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.bits_per_sample = 8,
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.packing = SOC_MBUS_PACKING_2X8_PADHI,
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.order = SOC_MBUS_ORDER_LE,
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},
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[MBUS_IDX(RGB555_2X8_PADHI_BE)] = {
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.fourcc = V4L2_PIX_FMT_RGB555X,
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.name = "RGB555X",
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.bits_per_sample = 8,
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.packing = SOC_MBUS_PACKING_2X8_PADHI,
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.order = SOC_MBUS_ORDER_LE,
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},
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[MBUS_IDX(RGB565_2X8_LE)] = {
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.fourcc = V4L2_PIX_FMT_RGB565,
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.name = "RGB565",
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.bits_per_sample = 8,
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.packing = SOC_MBUS_PACKING_2X8_PADHI,
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.order = SOC_MBUS_ORDER_LE,
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},
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[MBUS_IDX(RGB565_2X8_BE)] = {
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.fourcc = V4L2_PIX_FMT_RGB565X,
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.name = "RGB565X",
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.bits_per_sample = 8,
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.packing = SOC_MBUS_PACKING_2X8_PADHI,
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.order = SOC_MBUS_ORDER_LE,
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},
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[MBUS_IDX(SBGGR8_1X8)] = {
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.fourcc = V4L2_PIX_FMT_SBGGR8,
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.name = "Bayer 8 BGGR",
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.bits_per_sample = 8,
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.packing = SOC_MBUS_PACKING_NONE,
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.order = SOC_MBUS_ORDER_LE,
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},
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[MBUS_IDX(SBGGR10_1X10)] = {
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.fourcc = V4L2_PIX_FMT_SBGGR10,
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.name = "Bayer 10 BGGR",
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.bits_per_sample = 10,
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.packing = SOC_MBUS_PACKING_EXTEND16,
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.order = SOC_MBUS_ORDER_LE,
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},
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[MBUS_IDX(GREY8_1X8)] = {
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.fourcc = V4L2_PIX_FMT_GREY,
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.name = "Grey",
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.bits_per_sample = 8,
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.packing = SOC_MBUS_PACKING_NONE,
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.order = SOC_MBUS_ORDER_LE,
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},
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[MBUS_IDX(Y10_1X10)] = {
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.fourcc = V4L2_PIX_FMT_Y10,
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.name = "Grey 10bit",
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.bits_per_sample = 10,
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.packing = SOC_MBUS_PACKING_EXTEND16,
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.order = SOC_MBUS_ORDER_LE,
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},
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[MBUS_IDX(SBGGR10_2X8_PADHI_LE)] = {
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.fourcc = V4L2_PIX_FMT_SBGGR10,
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.name = "Bayer 10 BGGR",
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.bits_per_sample = 8,
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.packing = SOC_MBUS_PACKING_2X8_PADHI,
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.order = SOC_MBUS_ORDER_LE,
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},
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[MBUS_IDX(SBGGR10_2X8_PADLO_LE)] = {
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.fourcc = V4L2_PIX_FMT_SBGGR10,
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.name = "Bayer 10 BGGR",
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.bits_per_sample = 8,
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.packing = SOC_MBUS_PACKING_2X8_PADLO,
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.order = SOC_MBUS_ORDER_LE,
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},
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[MBUS_IDX(SBGGR10_2X8_PADHI_BE)] = {
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.fourcc = V4L2_PIX_FMT_SBGGR10,
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.name = "Bayer 10 BGGR",
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.bits_per_sample = 8,
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.packing = SOC_MBUS_PACKING_2X8_PADHI,
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.order = SOC_MBUS_ORDER_BE,
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},
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[MBUS_IDX(SBGGR10_2X8_PADLO_BE)] = {
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.fourcc = V4L2_PIX_FMT_SBGGR10,
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.name = "Bayer 10 BGGR",
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.bits_per_sample = 8,
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.packing = SOC_MBUS_PACKING_2X8_PADLO,
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.order = SOC_MBUS_ORDER_BE,
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},
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};
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s32 soc_mbus_bytes_per_line(u32 width, const struct soc_mbus_pixelfmt *mf)
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{
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switch (mf->packing) {
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case SOC_MBUS_PACKING_NONE:
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return width * mf->bits_per_sample / 8;
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case SOC_MBUS_PACKING_2X8_PADHI:
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case SOC_MBUS_PACKING_2X8_PADLO:
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case SOC_MBUS_PACKING_EXTEND16:
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return width * 2;
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}
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return -EINVAL;
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}
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EXPORT_SYMBOL(soc_mbus_bytes_per_line);
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const struct soc_mbus_pixelfmt *soc_mbus_get_fmtdesc(
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enum v4l2_mbus_pixelcode code)
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{
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if (code - V4L2_MBUS_FMT_FIXED > ARRAY_SIZE(mbus_fmt) ||
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code <= V4L2_MBUS_FMT_FIXED)
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return NULL;
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return mbus_fmt + code - V4L2_MBUS_FMT_FIXED - 1;
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}
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EXPORT_SYMBOL(soc_mbus_get_fmtdesc);
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static int __init soc_mbus_init(void)
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{
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return 0;
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}
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static void __exit soc_mbus_exit(void)
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{
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}
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module_init(soc_mbus_init);
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module_exit(soc_mbus_exit);
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MODULE_DESCRIPTION("soc-camera media bus interface");
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MODULE_AUTHOR("Guennadi Liakhovetski <g.liakhovetski@gmx.de>");
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MODULE_LICENSE("GPL v2");
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