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Commit 84c7f8ca authored by Mark Yao's avatar Mark Yao
Browse files

drm/rockchip: vop: Add yuv plane support 



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

Signed-off-by: default avatarMark Yao <mark.yao@rock-chips.com>
parent acf8c3e0

drivers/gpu/drm/rockchip/rockchip_drm_vop.c

+54 −2
Original line number Diff line number Diff line
@@ -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);