From: Hans Verkuil Date: Sat, 8 May 2010 21:28:41 +0000 (-0300) Subject: V4L/DVB: ov7670: add enum/try/s_mbus_fmt support X-Git-Url: http://git.lede-project.org./?a=commitdiff_plain;h=959f3bdadfefb59e27c53c2e9ab13192119b0e3c;p=openwrt%2Fstaging%2Fblogic.git V4L/DVB: ov7670: add enum/try/s_mbus_fmt support Signed-off-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab --- diff --git a/drivers/media/video/ov7670.c b/drivers/media/video/ov7670.c index 91c886ab15c6..715feb12f47c 100644 --- a/drivers/media/video/ov7670.c +++ b/drivers/media/video/ov7670.c @@ -18,6 +18,7 @@ #include #include #include +#include #include @@ -572,11 +573,13 @@ static int ov7670_detect(struct v4l2_subdev *sd) /* * Store information about the video data format. The color matrix * is deeply tied into the format, so keep the relevant values here. - * The magic matrix nubmers come from OmniVision. + * The magic matrix numbers come from OmniVision. */ static struct ov7670_format_struct { __u8 *desc; __u32 pixelformat; + enum v4l2_mbus_pixelcode mbus_code; + enum v4l2_colorspace colorspace; struct regval_list *regs; int cmatrix[CMATRIX_LEN]; int bpp; /* Bytes per pixel */ @@ -584,6 +587,8 @@ static struct ov7670_format_struct { { .desc = "YUYV 4:2:2", .pixelformat = V4L2_PIX_FMT_YUYV, + .mbus_code = V4L2_MBUS_FMT_YUYV8_2X8, + .colorspace = V4L2_COLORSPACE_JPEG, .regs = ov7670_fmt_yuv422, .cmatrix = { 128, -128, 0, -34, -94, 128 }, .bpp = 2, @@ -591,6 +596,8 @@ static struct ov7670_format_struct { { .desc = "RGB 444", .pixelformat = V4L2_PIX_FMT_RGB444, + .mbus_code = V4L2_MBUS_FMT_RGB444_2X8_PADHI_LE, + .colorspace = V4L2_COLORSPACE_SRGB, .regs = ov7670_fmt_rgb444, .cmatrix = { 179, -179, 0, -61, -176, 228 }, .bpp = 2, @@ -598,6 +605,8 @@ static struct ov7670_format_struct { { .desc = "RGB 565", .pixelformat = V4L2_PIX_FMT_RGB565, + .mbus_code = V4L2_MBUS_FMT_RGB565_2X8_LE, + .colorspace = V4L2_COLORSPACE_SRGB, .regs = ov7670_fmt_rgb565, .cmatrix = { 179, -179, 0, -61, -176, 228 }, .bpp = 2, @@ -605,6 +614,8 @@ static struct ov7670_format_struct { { .desc = "Raw RGB Bayer", .pixelformat = V4L2_PIX_FMT_SBGGR8, + .mbus_code = V4L2_MBUS_FMT_SBGGR8_1X8, + .colorspace = V4L2_COLORSPACE_SRGB, .regs = ov7670_fmt_raw, .cmatrix = { 0, 0, 0, 0, 0, 0 }, .bpp = 1 @@ -748,37 +759,45 @@ static int ov7670_enum_fmt(struct v4l2_subdev *sd, struct v4l2_fmtdesc *fmt) return 0; } +static int ov7670_enum_mbus_fmt(struct v4l2_subdev *sd, unsigned index, + enum v4l2_mbus_pixelcode *code) +{ + if (index >= N_OV7670_FMTS) + return -EINVAL; + + *code = ov7670_formats[index].mbus_code; + return 0; +} static int ov7670_try_fmt_internal(struct v4l2_subdev *sd, - struct v4l2_format *fmt, + struct v4l2_mbus_framefmt *fmt, struct ov7670_format_struct **ret_fmt, struct ov7670_win_size **ret_wsize) { int index; struct ov7670_win_size *wsize; - struct v4l2_pix_format *pix = &fmt->fmt.pix; for (index = 0; index < N_OV7670_FMTS; index++) - if (ov7670_formats[index].pixelformat == pix->pixelformat) + if (ov7670_formats[index].mbus_code == fmt->code) break; if (index >= N_OV7670_FMTS) { /* default to first format */ index = 0; - pix->pixelformat = ov7670_formats[0].pixelformat; + fmt->code = ov7670_formats[0].mbus_code; } if (ret_fmt != NULL) *ret_fmt = ov7670_formats + index; /* * Fields: the OV devices claim to be progressive. */ - pix->field = V4L2_FIELD_NONE; + fmt->field = V4L2_FIELD_NONE; /* * Round requested image size down to the nearest * we support, but not below the smallest. */ for (wsize = ov7670_win_sizes; wsize < ov7670_win_sizes + N_WIN_SIZES; wsize++) - if (pix->width >= wsize->width && pix->height >= wsize->height) + if (fmt->width >= wsize->width && fmt->height >= wsize->height) break; if (wsize >= ov7670_win_sizes + N_WIN_SIZES) wsize--; /* Take the smallest one */ @@ -787,30 +806,54 @@ static int ov7670_try_fmt_internal(struct v4l2_subdev *sd, /* * Note the size we'll actually handle. */ - pix->width = wsize->width; - pix->height = wsize->height; - pix->bytesperline = pix->width*ov7670_formats[index].bpp; - pix->sizeimage = pix->height*pix->bytesperline; + fmt->width = wsize->width; + fmt->height = wsize->height; + fmt->colorspace = ov7670_formats[index].colorspace; return 0; } -static int ov7670_try_fmt(struct v4l2_subdev *sd, struct v4l2_format *fmt) +static int ov7670_try_mbus_fmt(struct v4l2_subdev *sd, + struct v4l2_mbus_framefmt *fmt) { return ov7670_try_fmt_internal(sd, fmt, NULL, NULL); } +static int ov7670_try_fmt(struct v4l2_subdev *sd, struct v4l2_format *fmt) +{ + struct v4l2_mbus_framefmt mbus_fmt; + struct v4l2_pix_format *pix = &fmt->fmt.pix; + unsigned index; + int ret; + + for (index = 0; index < N_OV7670_FMTS; index++) + if (ov7670_formats[index].pixelformat == pix->pixelformat) + break; + if (index >= N_OV7670_FMTS) { + index = 0; + pix->pixelformat = ov7670_formats[index].pixelformat; + } + v4l2_fill_mbus_format(&mbus_fmt, pix, ov7670_formats[index].mbus_code); + ret = ov7670_try_fmt_internal(sd, &mbus_fmt, NULL, NULL); + v4l2_fill_pix_format(pix, &mbus_fmt); + pix->bytesperline = pix->width * ov7670_formats[index].bpp; + pix->sizeimage = pix->height * pix->bytesperline; + return ret; +} + /* * Set a format. */ -static int ov7670_s_fmt(struct v4l2_subdev *sd, struct v4l2_format *fmt) +static int ov7670_s_mbus_fmt(struct v4l2_subdev *sd, + struct v4l2_mbus_framefmt *fmt) { - int ret; struct ov7670_format_struct *ovfmt; struct ov7670_win_size *wsize; struct ov7670_info *info = to_state(sd); unsigned char com7; + int ret; ret = ov7670_try_fmt_internal(sd, fmt, &ovfmt, &wsize); + if (ret) return ret; /* @@ -845,6 +888,26 @@ static int ov7670_s_fmt(struct v4l2_subdev *sd, struct v4l2_format *fmt) */ if (ret == 0) ret = ov7670_write(sd, REG_CLKRC, info->clkrc); + return 0; +} + +static int ov7670_s_fmt(struct v4l2_subdev *sd, struct v4l2_format *fmt) +{ + struct v4l2_mbus_framefmt mbus_fmt; + struct v4l2_pix_format *pix = &fmt->fmt.pix; + unsigned index; + int ret; + + for (index = 0; index < N_OV7670_FMTS; index++) + if (ov7670_formats[index].pixelformat == pix->pixelformat) + break; + if (index >= N_OV7670_FMTS) { + index = 0; + pix->pixelformat = ov7670_formats[index].pixelformat; + } + v4l2_fill_mbus_format(&mbus_fmt, pix, ov7670_formats[index].mbus_code); + ret = ov7670_s_mbus_fmt(sd, &mbus_fmt); + v4l2_fill_pix_format(pix, &mbus_fmt); return ret; } @@ -1445,6 +1508,9 @@ static const struct v4l2_subdev_video_ops ov7670_video_ops = { .enum_fmt = ov7670_enum_fmt, .try_fmt = ov7670_try_fmt, .s_fmt = ov7670_s_fmt, + .enum_mbus_fmt = ov7670_enum_mbus_fmt, + .try_mbus_fmt = ov7670_try_mbus_fmt, + .s_mbus_fmt = ov7670_s_mbus_fmt, .s_parm = ov7670_s_parm, .g_parm = ov7670_g_parm, };