From 780bf2fe36e028c1f2884b18c327bf5adc6f9e08 Mon Sep 17 00:00:00 2001 From: Todor Tomov Date: Tue, 8 Aug 2017 09:30:14 -0400 Subject: [PATCH] media: camss: vfe: Add interface for cropping Extend selection ioctls to handle cropping configuration. Signed-off-by: Todor Tomov Signed-off-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab --- .../platform/qcom/camss-8x16/camss-vfe.c | 191 ++++++++++++++---- .../platform/qcom/camss-8x16/camss-vfe.h | 1 + 2 files changed, 150 insertions(+), 42 deletions(-) diff --git a/drivers/media/platform/qcom/camss-8x16/camss-vfe.c b/drivers/media/platform/qcom/camss-8x16/camss-vfe.c index cc1fc6805f0e..680e059a952c 100644 --- a/drivers/media/platform/qcom/camss-8x16/camss-vfe.c +++ b/drivers/media/platform/qcom/camss-8x16/camss-vfe.c @@ -1993,6 +1993,26 @@ __vfe_get_compose(struct vfe_line *line, return &line->compose; } +/* + * __vfe_get_crop - Get pointer to crop selection structure + * @line: VFE line + * @cfg: V4L2 subdev pad configuration + * @which: TRY or ACTIVE format + * + * Return pointer to TRY or ACTIVE crop rectangle structure + */ +static struct v4l2_rect * +__vfe_get_crop(struct vfe_line *line, + struct v4l2_subdev_pad_config *cfg, + enum v4l2_subdev_format_whence which) +{ + if (which == V4L2_SUBDEV_FORMAT_TRY) + return v4l2_subdev_get_try_crop(&line->subdev, cfg, + MSM_VFE_PAD_SRC); + + return &line->crop; +} + /* * vfe_try_format - Handle try format by pad subdev method * @line: VFE line @@ -2041,7 +2061,7 @@ static void vfe_try_format(struct vfe_line *line, if (line->id == VFE_LINE_PIX) { struct v4l2_rect *rect; - rect = __vfe_get_compose(line, cfg, which); + rect = __vfe_get_crop(line, cfg, which); fmt->width = rect->width; fmt->height = rect->height; @@ -2120,6 +2140,49 @@ static void vfe_try_compose(struct vfe_line *line, rect->height = 4; } +/* + * vfe_try_crop - Handle try crop selection by pad subdev method + * @line: VFE line + * @cfg: V4L2 subdev pad configuration + * @rect: pointer to v4l2 rect structure + * @which: wanted subdev format + */ +static void vfe_try_crop(struct vfe_line *line, + struct v4l2_subdev_pad_config *cfg, + struct v4l2_rect *rect, + enum v4l2_subdev_format_whence which) +{ + struct v4l2_rect *compose; + + compose = __vfe_get_compose(line, cfg, which); + + if (rect->width > compose->width) + rect->width = compose->width; + + if (rect->width + rect->left > compose->width) + rect->left = compose->width - rect->width; + + if (rect->height > compose->height) + rect->height = compose->height; + + if (rect->height + rect->top > compose->height) + rect->top = compose->height - rect->height; + + /* wm in line based mode writes multiple of 16 horizontally */ + rect->left += (rect->width & 0xf) >> 1; + rect->width &= ~0xf; + + if (rect->width < 16) { + rect->left = 0; + rect->width = 16; + } + + if (rect->height < 4) { + rect->top = 0; + rect->height = 4; + } +} + /* * vfe_enum_mbus_code - Handle pixel format enumeration * @sd: VFE V4L2 subdevice @@ -2284,34 +2347,58 @@ static int vfe_get_selection(struct v4l2_subdev *sd, { struct vfe_line *line = v4l2_get_subdevdata(sd); struct v4l2_subdev_format fmt = { 0 }; - struct v4l2_rect *compose; + struct v4l2_rect *rect; int ret; - if (line->id != VFE_LINE_PIX || sel->pad != MSM_VFE_PAD_SINK) + if (line->id != VFE_LINE_PIX) return -EINVAL; - switch (sel->target) { - case V4L2_SEL_TGT_COMPOSE_BOUNDS: - fmt.pad = sel->pad; - fmt.which = sel->which; - ret = vfe_get_format(sd, cfg, &fmt); - if (ret < 0) - return ret; - sel->r.left = 0; - sel->r.top = 0; - sel->r.width = fmt.format.width; - sel->r.height = fmt.format.height; - break; - case V4L2_SEL_TGT_COMPOSE: - compose = __vfe_get_compose(line, cfg, sel->which); - if (compose == NULL) + if (sel->pad == MSM_VFE_PAD_SINK) + switch (sel->target) { + case V4L2_SEL_TGT_COMPOSE_BOUNDS: + fmt.pad = sel->pad; + fmt.which = sel->which; + ret = vfe_get_format(sd, cfg, &fmt); + if (ret < 0) + return ret; + + sel->r.left = 0; + sel->r.top = 0; + sel->r.width = fmt.format.width; + sel->r.height = fmt.format.height; + break; + case V4L2_SEL_TGT_COMPOSE: + rect = __vfe_get_compose(line, cfg, sel->which); + if (rect == NULL) + return -EINVAL; + + sel->r = *rect; + break; + default: return -EINVAL; + } + else if (sel->pad == MSM_VFE_PAD_SRC) + switch (sel->target) { + case V4L2_SEL_TGT_CROP_BOUNDS: + rect = __vfe_get_compose(line, cfg, sel->which); + if (rect == NULL) + return -EINVAL; - sel->r = *compose; - break; - default: - return -EINVAL; - } + sel->r.left = rect->left; + sel->r.top = rect->top; + sel->r.width = rect->width; + sel->r.height = rect->height; + break; + case V4L2_SEL_TGT_CROP: + rect = __vfe_get_crop(line, cfg, sel->which); + if (rect == NULL) + return -EINVAL; + + sel->r = *rect; + break; + default: + return -EINVAL; + } return 0; } @@ -2329,33 +2416,53 @@ int vfe_set_selection(struct v4l2_subdev *sd, struct v4l2_subdev_selection *sel) { struct vfe_line *line = v4l2_get_subdevdata(sd); - struct v4l2_rect *compose; - struct v4l2_subdev_format fmt = { 0 }; + struct v4l2_rect *rect; int ret; - if (line->id != VFE_LINE_PIX || sel->pad != MSM_VFE_PAD_SINK) + if (line->id != VFE_LINE_PIX) return -EINVAL; - if (sel->target != V4L2_SEL_TGT_COMPOSE) - return -EINVAL; + if (sel->target == V4L2_SEL_TGT_COMPOSE && + sel->pad == MSM_VFE_PAD_SINK) { + struct v4l2_subdev_selection crop = { 0 }; - compose = __vfe_get_compose(line, cfg, sel->which); - if (compose == NULL) - return -EINVAL; + rect = __vfe_get_compose(line, cfg, sel->which); + if (rect == NULL) + return -EINVAL; - vfe_try_compose(line, cfg, &sel->r, sel->which); - *compose = sel->r; + vfe_try_compose(line, cfg, &sel->r, sel->which); + *rect = sel->r; - /* Reset source pad format width and height */ - fmt.which = sel->which; - fmt.pad = MSM_VFE_PAD_SRC; - ret = vfe_get_format(sd, cfg, &fmt); - if (ret < 0) - return ret; + /* Reset source crop selection */ + crop.which = sel->which; + crop.pad = MSM_VFE_PAD_SRC; + crop.target = V4L2_SEL_TGT_CROP; + crop.r = *rect; + ret = vfe_set_selection(sd, cfg, &crop); + } else if (sel->target == V4L2_SEL_TGT_CROP && + sel->pad == MSM_VFE_PAD_SRC) { + struct v4l2_subdev_format fmt = { 0 }; - fmt.format.width = compose->width; - fmt.format.height = compose->height; - ret = vfe_set_format(sd, cfg, &fmt); + rect = __vfe_get_crop(line, cfg, sel->which); + if (rect == NULL) + return -EINVAL; + + vfe_try_crop(line, cfg, &sel->r, sel->which); + *rect = sel->r; + + /* Reset source pad format width and height */ + fmt.which = sel->which; + fmt.pad = MSM_VFE_PAD_SRC; + ret = vfe_get_format(sd, cfg, &fmt); + if (ret < 0) + return ret; + + fmt.format.width = rect->width; + fmt.format.height = rect->height; + ret = vfe_set_format(sd, cfg, &fmt); + } else { + ret = -EINVAL; + } return ret; } diff --git a/drivers/media/platform/qcom/camss-8x16/camss-vfe.h b/drivers/media/platform/qcom/camss-8x16/camss-vfe.h index 6518c7ab99bb..3651ece53caa 100644 --- a/drivers/media/platform/qcom/camss-8x16/camss-vfe.h +++ b/drivers/media/platform/qcom/camss-8x16/camss-vfe.h @@ -81,6 +81,7 @@ struct vfe_line { struct media_pad pads[MSM_VFE_PADS_NUM]; struct v4l2_mbus_framefmt fmt[MSM_VFE_PADS_NUM]; struct v4l2_rect compose; + struct v4l2_rect crop; struct camss_video video_out; struct vfe_output output; };