[media] V4L: soc-camera: avoid huge arrays, caused by changed format codes
Recently mediabus pixel format codes have become a part of the user- space API, at which time their values also have been changed from contiguous numbers, running from 0 to sparse numbers with values around 0x1000, 0x2000, 0x3000... This made them unsuitable for the use as array indices. This patch switches soc-camera internal format look-ups to not depend on values of those macros. Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
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@ -15,128 +15,161 @@
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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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static const struct soc_mbus_lookup mbus_fmt[] = {
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{
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.code = V4L2_MBUS_FMT_YUYV8_2X8,
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.fmt = {
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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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}, {
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.code = V4L2_MBUS_FMT_YVYU8_2X8,
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.fmt = {
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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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}, {
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.code = V4L2_MBUS_FMT_UYVY8_2X8,
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.fmt = {
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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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}, {
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.code = V4L2_MBUS_FMT_VYUY8_2X8,
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.fmt = {
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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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}, {
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.code = V4L2_MBUS_FMT_RGB555_2X8_PADHI_LE,
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.fmt = {
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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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}, {
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.code = V4L2_MBUS_FMT_RGB555_2X8_PADHI_BE,
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.fmt = {
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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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}, {
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.code = V4L2_MBUS_FMT_RGB565_2X8_LE,
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.fmt = {
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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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}, {
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.code = V4L2_MBUS_FMT_RGB565_2X8_BE,
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.fmt = {
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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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}, {
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.code = V4L2_MBUS_FMT_SBGGR8_1X8,
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.fmt = {
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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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}, {
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.code = V4L2_MBUS_FMT_SBGGR10_1X10,
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.fmt = {
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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(Y8_1X8)] = {
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}, {
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.code = V4L2_MBUS_FMT_Y8_1X8,
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.fmt = {
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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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}, {
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.code = V4L2_MBUS_FMT_Y10_1X10,
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.fmt = {
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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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}, {
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.code = V4L2_MBUS_FMT_SBGGR10_2X8_PADHI_LE,
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.fmt = {
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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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}, {
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.code = V4L2_MBUS_FMT_SBGGR10_2X8_PADLO_LE,
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.fmt = {
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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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}, {
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.code = V4L2_MBUS_FMT_SBGGR10_2X8_PADHI_BE,
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.fmt = {
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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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}, {
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.code = V4L2_MBUS_FMT_SBGGR10_2X8_PADLO_BE,
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.fmt = {
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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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[MBUS_IDX(JPEG_1X8)] = {
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}, {
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.code = V4L2_MBUS_FMT_JPEG_1X8,
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.fmt = {
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.fourcc = V4L2_PIX_FMT_JPEG,
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.name = "JPEG",
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.bits_per_sample = 8,
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.packing = SOC_MBUS_PACKING_VARIABLE,
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.order = SOC_MBUS_ORDER_LE,
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},
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},
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};
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int soc_mbus_samples_per_pixel(const struct soc_mbus_pixelfmt *mf)
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@ -171,13 +204,25 @@ s32 soc_mbus_bytes_per_line(u32 width, const struct soc_mbus_pixelfmt *mf)
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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_find_fmtdesc(
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enum v4l2_mbus_pixelcode code,
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const struct soc_mbus_lookup *lookup,
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int n)
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{
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int i;
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for (i = 0; i < n; i++)
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if (lookup[i].code == code)
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return &lookup[i].fmt;
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return NULL;
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}
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EXPORT_SYMBOL(soc_mbus_find_fmtdesc);
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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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return soc_mbus_find_fmtdesc(code, mbus_fmt, ARRAY_SIZE(mbus_fmt));
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}
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EXPORT_SYMBOL(soc_mbus_get_fmtdesc);
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@ -58,6 +58,20 @@ struct soc_mbus_pixelfmt {
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u8 bits_per_sample;
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};
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/**
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* struct soc_mbus_lookup - Lookup FOURCC IDs by mediabus codes for pass-through
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* @code: mediabus pixel-code
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* @fmt: pixel format description
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*/
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struct soc_mbus_lookup {
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enum v4l2_mbus_pixelcode code;
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struct soc_mbus_pixelfmt fmt;
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};
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const struct soc_mbus_pixelfmt *soc_mbus_find_fmtdesc(
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enum v4l2_mbus_pixelcode code,
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const struct soc_mbus_lookup *lookup,
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int n);
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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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s32 soc_mbus_bytes_per_line(u32 width, const struct soc_mbus_pixelfmt *mf);
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