diff options
Diffstat (limited to 'drivers/gpu/drm/exynos/exynos_mixer.c')
| -rw-r--r-- | drivers/gpu/drm/exynos/exynos_mixer.c | 56 |
1 files changed, 39 insertions, 17 deletions
diff --git a/drivers/gpu/drm/exynos/exynos_mixer.c b/drivers/gpu/drm/exynos/exynos_mixer.c index ffbf4a950f69..e3a4ecbc503b 100644 --- a/drivers/gpu/drm/exynos/exynos_mixer.c +++ b/drivers/gpu/drm/exynos/exynos_mixer.c @@ -131,14 +131,18 @@ static const struct exynos_drm_plane_config plane_configs[MIXER_WIN_NR] = { .pixel_formats = mixer_formats, .num_pixel_formats = ARRAY_SIZE(mixer_formats), .capabilities = EXYNOS_DRM_PLANE_CAP_DOUBLE | - EXYNOS_DRM_PLANE_CAP_ZPOS, + EXYNOS_DRM_PLANE_CAP_ZPOS | + EXYNOS_DRM_PLANE_CAP_PIX_BLEND | + EXYNOS_DRM_PLANE_CAP_WIN_BLEND, }, { .zpos = 1, .type = DRM_PLANE_TYPE_CURSOR, .pixel_formats = mixer_formats, .num_pixel_formats = ARRAY_SIZE(mixer_formats), .capabilities = EXYNOS_DRM_PLANE_CAP_DOUBLE | - EXYNOS_DRM_PLANE_CAP_ZPOS, + EXYNOS_DRM_PLANE_CAP_ZPOS | + EXYNOS_DRM_PLANE_CAP_PIX_BLEND | + EXYNOS_DRM_PLANE_CAP_WIN_BLEND, }, { .zpos = 2, .type = DRM_PLANE_TYPE_OVERLAY, @@ -146,7 +150,8 @@ static const struct exynos_drm_plane_config plane_configs[MIXER_WIN_NR] = { .num_pixel_formats = ARRAY_SIZE(vp_formats), .capabilities = EXYNOS_DRM_PLANE_CAP_SCALE | EXYNOS_DRM_PLANE_CAP_ZPOS | - EXYNOS_DRM_PLANE_CAP_TILE, + EXYNOS_DRM_PLANE_CAP_TILE | + EXYNOS_DRM_PLANE_CAP_WIN_BLEND, }, }; @@ -309,31 +314,42 @@ static void vp_default_filter(struct mixer_context *ctx) } static void mixer_cfg_gfx_blend(struct mixer_context *ctx, unsigned int win, - bool alpha) + unsigned int pixel_alpha, unsigned int alpha) { + u32 win_alpha = alpha >> 8; u32 val; val = MXR_GRP_CFG_COLOR_KEY_DISABLE; /* no blank key */ - if (alpha) { - /* blending based on pixel alpha */ + switch (pixel_alpha) { + case DRM_MODE_BLEND_PIXEL_NONE: + break; + case DRM_MODE_BLEND_COVERAGE: + val |= MXR_GRP_CFG_PIXEL_BLEND_EN; + break; + case DRM_MODE_BLEND_PREMULTI: + default: val |= MXR_GRP_CFG_BLEND_PRE_MUL; val |= MXR_GRP_CFG_PIXEL_BLEND_EN; + break; + } + + if (alpha != DRM_BLEND_ALPHA_OPAQUE) { + val |= MXR_GRP_CFG_WIN_BLEND_EN; + val |= win_alpha; } mixer_reg_writemask(ctx, MXR_GRAPHIC_CFG(win), val, MXR_GRP_CFG_MISC_MASK); } -static void mixer_cfg_vp_blend(struct mixer_context *ctx) +static void mixer_cfg_vp_blend(struct mixer_context *ctx, unsigned int alpha) { - u32 val; + u32 win_alpha = alpha >> 8; + u32 val = 0; - /* - * No blending at the moment since the NV12/NV21 pixelformats don't - * have an alpha channel. However the mixer supports a global alpha - * value for a layer. Once this functionality is exposed, we can - * support blending of the video layer through this. - */ - val = 0; + if (alpha != DRM_BLEND_ALPHA_OPAQUE) { + val |= MXR_VID_CFG_BLEND_EN; + val |= win_alpha; + } mixer_reg_write(ctx, MXR_VIDEO_CFG, val); } @@ -529,7 +545,7 @@ static void vp_video_buffer(struct mixer_context *ctx, vp_reg_write(ctx, VP_BOT_C_PTR, chroma_addr[1]); mixer_cfg_layer(ctx, plane->index, priority, true); - mixer_cfg_vp_blend(ctx); + mixer_cfg_vp_blend(ctx, state->base.alpha); spin_unlock_irqrestore(&ctx->reg_slock, flags); @@ -553,10 +569,16 @@ static void mixer_graph_buffer(struct mixer_context *ctx, unsigned int win = plane->index; unsigned int x_ratio = 0, y_ratio = 0; unsigned int dst_x_offset, dst_y_offset; + unsigned int pixel_alpha; dma_addr_t dma_addr; unsigned int fmt; u32 val; + if (fb->format->has_alpha) + pixel_alpha = state->base.pixel_blend_mode; + else + pixel_alpha = DRM_MODE_BLEND_PIXEL_NONE; + switch (fb->format->format) { case DRM_FORMAT_XRGB4444: case DRM_FORMAT_ARGB4444: @@ -616,7 +638,7 @@ static void mixer_graph_buffer(struct mixer_context *ctx, mixer_reg_write(ctx, MXR_GRAPHIC_BASE(win), dma_addr); mixer_cfg_layer(ctx, win, priority, true); - mixer_cfg_gfx_blend(ctx, win, fb->format->has_alpha); + mixer_cfg_gfx_blend(ctx, win, pixel_alpha, state->base.alpha); /* layer update mandatory for mixer 16.0.33.0 */ if (ctx->mxr_ver == MXR_VER_16_0_33_0 || |