From: Guennadi Liakhovetski Date: Fri, 13 May 2011 16:21:36 +0000 (-0300) Subject: [media] V4L: soc-camera: avoid huge arrays, caused by changed format codes X-Git-Url: http://git.lede-project.org./?a=commitdiff_plain;h=93f116d595e9aa7dca5f6507376d6995f217d420;p=openwrt%2Fstaging%2Fblogic.git [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 Signed-off-by: Mauro Carvalho Chehab --- diff --git a/drivers/media/video/soc_mediabus.c b/drivers/media/video/soc_mediabus.c index 13e86df78e56..1b0018a58804 100644 --- a/drivers/media/video/soc_mediabus.c +++ b/drivers/media/video/soc_mediabus.c @@ -15,128 +15,161 @@ #include #include -#define MBUS_IDX(f) (V4L2_MBUS_FMT_ ## f - V4L2_MBUS_FMT_FIXED - 1) - -static const struct soc_mbus_pixelfmt mbus_fmt[] = { - [MBUS_IDX(YUYV8_2X8)] = { +static const struct soc_mbus_lookup mbus_fmt[] = { +{ + .code = V4L2_MBUS_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, }, - [MBUS_IDX(YVYU8_2X8)] = { +}, { + .code = V4L2_MBUS_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, }, - [MBUS_IDX(UYVY8_2X8)] = { +}, { + .code = V4L2_MBUS_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, }, - [MBUS_IDX(VYUY8_2X8)] = { +}, { + .code = V4L2_MBUS_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, }, - [MBUS_IDX(RGB555_2X8_PADHI_LE)] = { +}, { + .code = V4L2_MBUS_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, }, - [MBUS_IDX(RGB555_2X8_PADHI_BE)] = { +}, { + .code = V4L2_MBUS_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_LE, }, - [MBUS_IDX(RGB565_2X8_LE)] = { +}, { + .code = V4L2_MBUS_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, }, - [MBUS_IDX(RGB565_2X8_BE)] = { +}, { + .code = V4L2_MBUS_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_LE, }, - [MBUS_IDX(SBGGR8_1X8)] = { +}, { + .code = V4L2_MBUS_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, }, - [MBUS_IDX(SBGGR10_1X10)] = { +}, { + .code = V4L2_MBUS_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, }, - [MBUS_IDX(Y8_1X8)] = { +}, { + .code = V4L2_MBUS_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, }, - [MBUS_IDX(Y10_1X10)] = { +}, { + .code = V4L2_MBUS_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, }, - [MBUS_IDX(SBGGR10_2X8_PADHI_LE)] = { +}, { + .code = V4L2_MBUS_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, }, - [MBUS_IDX(SBGGR10_2X8_PADLO_LE)] = { +}, { + .code = V4L2_MBUS_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, }, - [MBUS_IDX(SBGGR10_2X8_PADHI_BE)] = { +}, { + .code = V4L2_MBUS_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, }, - [MBUS_IDX(SBGGR10_2X8_PADLO_BE)] = { +}, { + .code = V4L2_MBUS_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, }, - [MBUS_IDX(JPEG_1X8)] = { +}, { + .code = V4L2_MBUS_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, }, +}, }; int soc_mbus_samples_per_pixel(const struct soc_mbus_pixelfmt *mf) @@ -171,13 +204,25 @@ s32 soc_mbus_bytes_per_line(u32 width, const struct soc_mbus_pixelfmt *mf) } EXPORT_SYMBOL(soc_mbus_bytes_per_line); +const struct soc_mbus_pixelfmt *soc_mbus_find_fmtdesc( + enum v4l2_mbus_pixelcode 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; +} +EXPORT_SYMBOL(soc_mbus_find_fmtdesc); + const struct soc_mbus_pixelfmt *soc_mbus_get_fmtdesc( enum v4l2_mbus_pixelcode code) { - if (code - V4L2_MBUS_FMT_FIXED > ARRAY_SIZE(mbus_fmt) || - code <= V4L2_MBUS_FMT_FIXED) - return NULL; - return mbus_fmt + code - V4L2_MBUS_FMT_FIXED - 1; + return soc_mbus_find_fmtdesc(code, mbus_fmt, ARRAY_SIZE(mbus_fmt)); } EXPORT_SYMBOL(soc_mbus_get_fmtdesc); diff --git a/include/media/soc_mediabus.h b/include/media/soc_mediabus.h index 3b5a70b97528..3eed98ed02f2 100644 --- a/include/media/soc_mediabus.h +++ b/include/media/soc_mediabus.h @@ -58,6 +58,20 @@ struct soc_mbus_pixelfmt { u8 bits_per_sample; }; +/** + * struct soc_mbus_lookup - Lookup FOURCC IDs by mediabus codes for pass-through + * @code: mediabus pixel-code + * @fmt: pixel format description + */ +struct soc_mbus_lookup { + enum v4l2_mbus_pixelcode code; + struct soc_mbus_pixelfmt fmt; +}; + +const struct soc_mbus_pixelfmt *soc_mbus_find_fmtdesc( + enum v4l2_mbus_pixelcode code, + const struct soc_mbus_lookup *lookup, + int n); const struct soc_mbus_pixelfmt *soc_mbus_get_fmtdesc( enum v4l2_mbus_pixelcode code); s32 soc_mbus_bytes_per_line(u32 width, const struct soc_mbus_pixelfmt *mf);