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drm/rockchip: vop: Add yuv plane support

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vop support yuv with NV12, NV16 and NV24, only 2 plane yuv.

Signed-off-by: Mark Yao <mark.yao@rock-chips.com>
This commit is contained in:
Mark Yao 2015-07-20 16:16:49 +08:00
parent acf8c3e0a9
commit 84c7f8ca43
1 changed files with 54 additions and 2 deletions
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56
drivers/gpu/drm/rockchip/rockchip_drm_vop.c
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@ -393,6 +393,18 @@ static enum vop_data_format vop_convert_format(uint32_t format)
}
}
static bool is_yuv_support(uint32_t format)
{
switch (format) {
case DRM_FORMAT_NV12:
case DRM_FORMAT_NV16:
case DRM_FORMAT_NV24:
return true;
default:
return false;
}
}
static bool is_alpha_support(uint32_t format)
{
switch (format) {
@ -598,17 +610,22 @@ static int vop_update_plane_event(struct drm_plane *plane,
struct vop *vop = to_vop(crtc);
struct drm_gem_object *obj;
struct rockchip_gem_object *rk_obj;
struct drm_gem_object *uv_obj;
struct rockchip_gem_object *rk_uv_obj;
unsigned long offset;
unsigned int actual_w;
unsigned int actual_h;
unsigned int dsp_stx;
unsigned int dsp_sty;
unsigned int y_vir_stride;
unsigned int uv_vir_stride = 0;
dma_addr_t yrgb_mst;
dma_addr_t uv_mst = 0;
enum vop_data_format format;
uint32_t val;
bool is_alpha;
bool rb_swap;
bool is_yuv;
bool visible;
int ret;
struct drm_rect dest = {
@ -643,6 +660,8 @@ static int vop_update_plane_event(struct drm_plane *plane,
is_alpha = is_alpha_support(fb->pixel_format);
rb_swap = has_rb_swapped(fb->pixel_format);
is_yuv = is_yuv_support(fb->pixel_format);
format = vop_convert_format(fb->pixel_format);
if (format < 0)
return format;
@ -655,18 +674,47 @@ static int vop_update_plane_event(struct drm_plane *plane,
rk_obj = to_rockchip_obj(obj);
if (is_yuv) {
/*
* Src.x1 can be odd when do clip, but yuv plane start point
* need align with 2 pixel.
*/
val = (src.x1 >> 16) % 2;
src.x1 += val << 16;
src.x2 += val << 16;
}
actual_w = (src.x2 - src.x1) >> 16;
actual_h = (src.y2 - src.y1) >> 16;
dsp_stx = dest.x1 + crtc->mode.htotal - crtc->mode.hsync_start;
dsp_sty = dest.y1 + crtc->mode.vtotal - crtc->mode.vsync_start;
offset = (src.x1 >> 16) * (fb->bits_per_pixel >> 3);
offset = (src.x1 >> 16) * drm_format_plane_cpp(fb->pixel_format, 0);
offset += (src.y1 >> 16) * fb->pitches[0];
yrgb_mst = rk_obj->dma_addr + offset;
yrgb_mst = rk_obj->dma_addr + offset + fb->offsets[0];
y_vir_stride = fb->pitches[0] >> 2;
if (is_yuv) {
int hsub = drm_format_horz_chroma_subsampling(fb->pixel_format);
int vsub = drm_format_vert_chroma_subsampling(fb->pixel_format);
int bpp = drm_format_plane_cpp(fb->pixel_format, 1);
uv_obj = rockchip_fb_get_gem_obj(fb, 1);
if (!uv_obj) {
DRM_ERROR("fail to get uv object from framebuffer\n");
return -EINVAL;
}
rk_uv_obj = to_rockchip_obj(uv_obj);
uv_vir_stride = fb->pitches[1] >> 2;
offset = (src.x1 >> 16) * bpp / hsub;
offset += (src.y1 >> 16) * fb->pitches[1] / vsub;
uv_mst = rk_uv_obj->dma_addr + offset + fb->offsets[1];
}
/*
* If this plane update changes the plane's framebuffer, (or more
* precisely, if this update has a different framebuffer than the last
@ -702,6 +750,10 @@ static int vop_update_plane_event(struct drm_plane *plane,
VOP_WIN_SET(vop, win, format, format);
VOP_WIN_SET(vop, win, yrgb_vir, y_vir_stride);
VOP_WIN_SET(vop, win, yrgb_mst, yrgb_mst);
if (is_yuv) {
VOP_WIN_SET(vop, win, uv_vir, uv_vir_stride);
VOP_WIN_SET(vop, win, uv_mst, uv_mst);
}
val = (actual_h - 1) << 16;
val |= (actual_w - 1) & 0xffff;
VOP_WIN_SET(vop, win, act_info, val);