From b1d2dc5c4d39d4e6c405419ad1f444bf59874111 Mon Sep 17 00:00:00 2001 From: Sylwester Nawrocki Date: Thu, 20 Jun 2013 10:57:47 -0300 Subject: [PATCH] [media] exynos4-is: Fix format propagation on FIMC-LITE.n subdevs FIMC-LITE subdevs have one sink pad and two source pads on which the image formats are always same. This patch implements missing format propagation from the sink pad to the source pads, to allow user space to negotiate TRY format on whole media pipeline involving FIMC-LITE.n subdevs. The subdev try_fmt helper is simplified. Signed-off-by: Sylwester Nawrocki Signed-off-by: Jacek Anaszewski Signed-off-by: Kyungmin Park Signed-off-by: Mauro Carvalho Chehab --- drivers/media/platform/exynos4-is/fimc-lite.c | 92 ++++++++++++------- 1 file changed, 59 insertions(+), 33 deletions(-) diff --git a/drivers/media/platform/exynos4-is/fimc-lite.c b/drivers/media/platform/exynos4-is/fimc-lite.c index 07767c8b1c62..993bd798f3d2 100644 --- a/drivers/media/platform/exynos4-is/fimc-lite.c +++ b/drivers/media/platform/exynos4-is/fimc-lite.c @@ -560,37 +560,51 @@ static const struct v4l2_file_operations fimc_lite_fops = { * Format and crop negotiation helpers */ -static const struct fimc_fmt *fimc_lite_try_format(struct fimc_lite *fimc, - u32 *width, u32 *height, - u32 *code, u32 *fourcc, int pad) +static const struct fimc_fmt *fimc_lite_subdev_try_fmt(struct fimc_lite *fimc, + struct v4l2_subdev_fh *fh, + struct v4l2_subdev_format *format) { struct flite_drvdata *dd = fimc->dd; - const struct fimc_fmt *fmt; - unsigned int flags = 0; + struct v4l2_mbus_framefmt *mf = &format->format; + const struct fimc_fmt *fmt = NULL; + + if (format->pad == FLITE_SD_PAD_SINK) { + v4l_bound_align_image(&mf->width, 8, dd->max_width, + ffs(dd->out_width_align) - 1, + &mf->height, 0, dd->max_height, 0, 0); - if (pad == FLITE_SD_PAD_SINK) { - v4l_bound_align_image(width, 8, dd->max_width, - ffs(dd->out_width_align) - 1, - height, 0, dd->max_height, 0, 0); + fmt = fimc_lite_find_format(NULL, &mf->code, 0, 0); + if (WARN_ON(!fmt)) + return NULL; + + mf->code = fmt->mbus_code; } else { - v4l_bound_align_image(width, 8, fimc->inp_frame.rect.width, - ffs(dd->out_width_align) - 1, - height, 0, fimc->inp_frame.rect.height, - 0, 0); - flags = fimc->inp_frame.fmt->flags; - } + struct flite_frame *sink = &fimc->inp_frame; + struct v4l2_mbus_framefmt *sink_fmt; + struct v4l2_rect *rect; - fmt = fimc_lite_find_format(fourcc, code, flags, 0); - if (WARN_ON(!fmt)) - return NULL; + if (format->which == V4L2_SUBDEV_FORMAT_TRY) { + sink_fmt = v4l2_subdev_get_try_format(fh, + FLITE_SD_PAD_SINK); - if (code) - *code = fmt->mbus_code; - if (fourcc) - *fourcc = fmt->fourcc; + mf->code = sink_fmt->code; + + rect = v4l2_subdev_get_try_crop(fh, + FLITE_SD_PAD_SINK); + } else { + mf->code = sink->fmt->mbus_code; + rect = &sink->rect; + } + + /* Allow changing format only on sink pad */ + mf->width = rect->width; + mf->height = rect->height; + } - v4l2_dbg(1, debug, &fimc->subdev, "code: 0x%x, %dx%d\n", - code ? *code : 0, *width, *height); + mf->field = V4L2_FIELD_NONE; + + v4l2_dbg(1, debug, &fimc->subdev, "code: %#x (%d), %dx%d\n", + mf->code, mf->colorspace, mf->width, mf->height); return fmt; } @@ -1035,6 +1049,15 @@ static int fimc_lite_subdev_enum_mbus_code(struct v4l2_subdev *sd, return 0; } +static struct v4l2_mbus_framefmt *__fimc_lite_subdev_get_try_fmt( + struct v4l2_subdev_fh *fh, unsigned int pad) +{ + if (pad != FLITE_SD_PAD_SINK) + pad = FLITE_SD_PAD_SOURCE_DMA; + + return v4l2_subdev_get_try_format(fh, pad); +} + static int fimc_lite_subdev_get_fmt(struct v4l2_subdev *sd, struct v4l2_subdev_fh *fh, struct v4l2_subdev_format *fmt) @@ -1044,7 +1067,7 @@ static int fimc_lite_subdev_get_fmt(struct v4l2_subdev *sd, struct flite_frame *f = &fimc->inp_frame; if (fmt->which == V4L2_SUBDEV_FORMAT_TRY) { - mf = v4l2_subdev_get_try_format(fh, fmt->pad); + mf = __fimc_lite_subdev_get_try_fmt(fh, fmt->pad); fmt->format = *mf; return 0; } @@ -1090,12 +1113,20 @@ static int fimc_lite_subdev_set_fmt(struct v4l2_subdev *sd, return -EBUSY; } - ffmt = fimc_lite_try_format(fimc, &mf->width, &mf->height, - &mf->code, NULL, fmt->pad); + ffmt = fimc_lite_subdev_try_fmt(fimc, fh, fmt); if (fmt->which == V4L2_SUBDEV_FORMAT_TRY) { - mf = v4l2_subdev_get_try_format(fh, fmt->pad); + struct v4l2_mbus_framefmt *src_fmt; + + mf = __fimc_lite_subdev_get_try_fmt(fh, fmt->pad); *mf = fmt->format; + + if (fmt->pad == FLITE_SD_PAD_SINK) { + unsigned int pad = FLITE_SD_PAD_SOURCE_DMA; + src_fmt = __fimc_lite_subdev_get_try_fmt(fh, pad); + *src_fmt = *mf; + } + mutex_unlock(&fimc->lock); return 0; } @@ -1113,11 +1144,6 @@ static int fimc_lite_subdev_set_fmt(struct v4l2_subdev *sd, source->rect = sink->rect; source->f_width = mf->width; source->f_height = mf->height; - } else { - /* Allow changing format only on sink pad */ - mf->code = sink->fmt->mbus_code; - mf->width = sink->rect.width; - mf->height = sink->rect.height; } mutex_unlock(&fimc->lock); -- 2.34.1