diff options
| author | Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> | 2014-05-26 20:12:53 -0300 |
|---|---|---|
| committer | Mauro Carvalho Chehab <m.chehab@samsung.com> | 2014-07-17 12:44:57 -0300 |
| commit | 7a52b6dea8e9559428149fbed0cddd587004006e (patch) | |
| tree | 5c3fdb3904eddb7a0ec9f067e6d9e13dd10564a8 /drivers/media/platform/vsp1/vsp1_rpf.c | |
| parent | 56bfef3e72cf4a98d0e8f56129673146733c1366 (diff) | |
| download | op-kernel-dev-7a52b6dea8e9559428149fbed0cddd587004006e.zip op-kernel-dev-7a52b6dea8e9559428149fbed0cddd587004006e.tar.gz | |
[media] v4l: vsp1: Add alpha channel support to the memory ports
Support ARGB formats on the RPF side by reading the alpha component from
memory and on the WPF side by writing it to memory.
Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
Diffstat (limited to 'drivers/media/platform/vsp1/vsp1_rpf.c')
| -rw-r--r-- | drivers/media/platform/vsp1/vsp1_rpf.c | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/drivers/media/platform/vsp1/vsp1_rpf.c b/drivers/media/platform/vsp1/vsp1_rpf.c index 9b3fc70..2824f53 100644 --- a/drivers/media/platform/vsp1/vsp1_rpf.c +++ b/drivers/media/platform/vsp1/vsp1_rpf.c @@ -101,10 +101,12 @@ static int rpf_s_stream(struct v4l2_subdev *subdev, int enable) (rpf->location.left << VI6_RPF_LOC_HCOORD_SHIFT) | (rpf->location.top << VI6_RPF_LOC_VCOORD_SHIFT)); - /* Disable alpha, mask and color key. Set the alpha channel to a fixed - * value of 255. + /* Use the alpha channel (extended to 8 bits) when available or a + * hardcoded 255 value otherwise. Disable color keying. */ - vsp1_rpf_write(rpf, VI6_RPF_ALPH_SEL, VI6_RPF_ALPH_SEL_ASEL_FIXED); + vsp1_rpf_write(rpf, VI6_RPF_ALPH_SEL, VI6_RPF_ALPH_SEL_AEXT_EXT | + (fmtinfo->alpha ? VI6_RPF_ALPH_SEL_ASEL_PACKED + : VI6_RPF_ALPH_SEL_ASEL_FIXED)); vsp1_rpf_write(rpf, VI6_RPF_VRTCOL_SET, 255 << VI6_RPF_VRTCOL_SET_LAYA_SHIFT); vsp1_rpf_write(rpf, VI6_RPF_MSK_CTRL, 0); |
