From 20997568f9a621c54d5ffcf2b6973fd672148cb6 Mon Sep 17 00:00:00 2001 From: Philipp Zabel Date: Thu, 17 Jan 2019 13:51:53 -0200 Subject: media: imx: set compose rectangle to mbus format Prepare for mbus format being smaller than the written rectangle due to burst size. Signed-off-by: Philipp Zabel Reviewed-by: Steve Longerbeam Signed-off-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab --- drivers/staging/media/imx/imx-media-capture.c | 68 ++++++++++++++++++--------- 1 file changed, 47 insertions(+), 21 deletions(-) (limited to 'drivers/staging/media') diff --git a/drivers/staging/media/imx/imx-media-capture.c b/drivers/staging/media/imx/imx-media-capture.c index 8b8ef4a11774..a93bd7f388ef 100644 --- a/drivers/staging/media/imx/imx-media-capture.c +++ b/drivers/staging/media/imx/imx-media-capture.c @@ -203,21 +203,13 @@ static int capture_g_fmt_vid_cap(struct file *file, void *fh, return 0; } -static int capture_try_fmt_vid_cap(struct file *file, void *fh, - struct v4l2_format *f) +static int __capture_try_fmt_vid_cap(struct capture_priv *priv, + struct v4l2_subdev_format *fmt_src, + struct v4l2_format *f) { - struct capture_priv *priv = video_drvdata(file); - struct v4l2_subdev_format fmt_src; const struct imx_media_pixfmt *cc, *cc_src; - int ret; - fmt_src.pad = priv->src_sd_pad; - fmt_src.which = V4L2_SUBDEV_FORMAT_ACTIVE; - ret = v4l2_subdev_call(priv->src_sd, pad, get_fmt, NULL, &fmt_src); - if (ret) - return ret; - - cc_src = imx_media_find_ipu_format(fmt_src.format.code, CS_SEL_ANY); + cc_src = imx_media_find_ipu_format(fmt_src->format.code, CS_SEL_ANY); if (cc_src) { u32 fourcc, cs_sel; @@ -231,7 +223,7 @@ static int capture_try_fmt_vid_cap(struct file *file, void *fh, cc = imx_media_find_format(fourcc, cs_sel, false); } } else { - cc_src = imx_media_find_mbus_format(fmt_src.format.code, + cc_src = imx_media_find_mbus_format(fmt_src->format.code, CS_SEL_ANY, true); if (WARN_ON(!cc_src)) return -EINVAL; @@ -241,27 +233,44 @@ static int capture_try_fmt_vid_cap(struct file *file, void *fh, /* allow IDMAC interweave but enforce field order from source */ if (V4L2_FIELD_IS_INTERLACED(f->fmt.pix.field)) { - switch (fmt_src.format.field) { + switch (fmt_src->format.field) { case V4L2_FIELD_SEQ_TB: - fmt_src.format.field = V4L2_FIELD_INTERLACED_TB; + fmt_src->format.field = V4L2_FIELD_INTERLACED_TB; break; case V4L2_FIELD_SEQ_BT: - fmt_src.format.field = V4L2_FIELD_INTERLACED_BT; + fmt_src->format.field = V4L2_FIELD_INTERLACED_BT; break; default: break; } } - imx_media_mbus_fmt_to_pix_fmt(&f->fmt.pix, &fmt_src.format, cc); + imx_media_mbus_fmt_to_pix_fmt(&f->fmt.pix, &fmt_src->format, cc); return 0; } +static int capture_try_fmt_vid_cap(struct file *file, void *fh, + struct v4l2_format *f) +{ + struct capture_priv *priv = video_drvdata(file); + struct v4l2_subdev_format fmt_src; + int ret; + + fmt_src.pad = priv->src_sd_pad; + fmt_src.which = V4L2_SUBDEV_FORMAT_ACTIVE; + ret = v4l2_subdev_call(priv->src_sd, pad, get_fmt, NULL, &fmt_src); + if (ret) + return ret; + + return __capture_try_fmt_vid_cap(priv, &fmt_src, f); +} + static int capture_s_fmt_vid_cap(struct file *file, void *fh, struct v4l2_format *f) { struct capture_priv *priv = video_drvdata(file); + struct v4l2_subdev_format fmt_src; int ret; if (vb2_is_busy(&priv->q)) { @@ -269,7 +278,13 @@ static int capture_s_fmt_vid_cap(struct file *file, void *fh, return -EBUSY; } - ret = capture_try_fmt_vid_cap(file, priv, f); + fmt_src.pad = priv->src_sd_pad; + fmt_src.which = V4L2_SUBDEV_FORMAT_ACTIVE; + ret = v4l2_subdev_call(priv->src_sd, pad, get_fmt, NULL, &fmt_src); + if (ret) + return ret; + + ret = __capture_try_fmt_vid_cap(priv, &fmt_src, f); if (ret) return ret; @@ -278,8 +293,8 @@ static int capture_s_fmt_vid_cap(struct file *file, void *fh, CS_SEL_ANY, true); priv->vdev.compose.left = 0; priv->vdev.compose.top = 0; - priv->vdev.compose.width = f->fmt.pix.width; - priv->vdev.compose.height = f->fmt.pix.height; + priv->vdev.compose.width = fmt_src.format.width; + priv->vdev.compose.height = fmt_src.format.height; return 0; } @@ -317,9 +332,20 @@ static int capture_g_selection(struct file *file, void *fh, case V4L2_SEL_TGT_COMPOSE: case V4L2_SEL_TGT_COMPOSE_DEFAULT: case V4L2_SEL_TGT_COMPOSE_BOUNDS: - case V4L2_SEL_TGT_COMPOSE_PADDED: + /* The compose rectangle is fixed to the source format. */ s->r = priv->vdev.compose; break; + case V4L2_SEL_TGT_COMPOSE_PADDED: + /* + * The hardware writes with a configurable but fixed DMA burst + * size. If the source format width is not burst size aligned, + * the written frame contains padding to the right. + */ + s->r.left = 0; + s->r.top = 0; + s->r.width = priv->vdev.fmt.fmt.pix.width; + s->r.height = priv->vdev.fmt.fmt.pix.height; + break; default: return -EINVAL; } -- cgit