diff options
Diffstat (limited to 'drivers/gpu/drm/tegra/dc.c')
| -rw-r--r-- | drivers/gpu/drm/tegra/dc.c | 111 |
1 files changed, 111 insertions, 0 deletions
diff --git a/drivers/gpu/drm/tegra/dc.c b/drivers/gpu/drm/tegra/dc.c index 3232167..ef40381 100644 --- a/drivers/gpu/drm/tegra/dc.c +++ b/drivers/gpu/drm/tegra/dc.c @@ -17,6 +17,7 @@ struct tegra_dc_soc_info { bool supports_interlacing; + bool supports_cursor; }; struct tegra_plane { @@ -477,6 +478,109 @@ void tegra_dc_disable_vblank(struct tegra_dc *dc) spin_unlock_irqrestore(&dc->lock, flags); } +static int tegra_dc_cursor_set2(struct drm_crtc *crtc, struct drm_file *file, + uint32_t handle, uint32_t width, + uint32_t height, int32_t hot_x, int32_t hot_y) +{ + unsigned long value = CURSOR_CLIP_DISPLAY; + struct tegra_dc *dc = to_tegra_dc(crtc); + struct drm_gem_object *gem; + struct tegra_bo *bo = NULL; + + if (!dc->soc->supports_cursor) + return -ENXIO; + + if (width != height) + return -EINVAL; + + switch (width) { + case 32: + value |= CURSOR_SIZE_32x32; + break; + + case 64: + value |= CURSOR_SIZE_64x64; + break; + + case 128: + value |= CURSOR_SIZE_128x128; + + case 256: + value |= CURSOR_SIZE_256x256; + break; + + default: + return -EINVAL; + } + + if (handle) { + gem = drm_gem_object_lookup(crtc->dev, file, handle); + if (!gem) + return -ENOENT; + + bo = to_tegra_bo(gem); + } + + if (bo) { + unsigned long addr = (bo->paddr & 0xfffffc00) >> 10; +#ifdef CONFIG_ARCH_DMA_ADDR_T_64BIT + unsigned long high = (bo->paddr & 0xfffffffc) >> 32; +#endif + + tegra_dc_writel(dc, value | addr, DC_DISP_CURSOR_START_ADDR); + +#ifdef CONFIG_ARCH_DMA_ADDR_T_64BIT + tegra_dc_writel(dc, high, DC_DISP_CURSOR_START_ADDR_HI); +#endif + + value = tegra_dc_readl(dc, DC_DISP_DISP_WIN_OPTIONS); + value |= CURSOR_ENABLE; + tegra_dc_writel(dc, value, DC_DISP_DISP_WIN_OPTIONS); + + value = tegra_dc_readl(dc, DC_DISP_BLEND_CURSOR_CONTROL); + value &= ~CURSOR_DST_BLEND_MASK; + value &= ~CURSOR_SRC_BLEND_MASK; + value |= CURSOR_MODE_NORMAL; + value |= CURSOR_DST_BLEND_NEG_K1_TIMES_SRC; + value |= CURSOR_SRC_BLEND_K1_TIMES_SRC; + value |= CURSOR_ALPHA; + tegra_dc_writel(dc, value, DC_DISP_BLEND_CURSOR_CONTROL); + } else { + value = tegra_dc_readl(dc, DC_DISP_DISP_WIN_OPTIONS); + value &= ~CURSOR_ENABLE; + tegra_dc_writel(dc, value, DC_DISP_DISP_WIN_OPTIONS); + } + + tegra_dc_writel(dc, CURSOR_ACT_REQ << 8, DC_CMD_STATE_CONTROL); + tegra_dc_writel(dc, CURSOR_ACT_REQ, DC_CMD_STATE_CONTROL); + + tegra_dc_writel(dc, GENERAL_ACT_REQ << 8, DC_CMD_STATE_CONTROL); + tegra_dc_writel(dc, GENERAL_ACT_REQ, DC_CMD_STATE_CONTROL); + + return 0; +} + +static int tegra_dc_cursor_move(struct drm_crtc *crtc, int x, int y) +{ + struct tegra_dc *dc = to_tegra_dc(crtc); + unsigned long value; + + if (!dc->soc->supports_cursor) + return -ENXIO; + + value = ((y & 0x3fff) << 16) | (x & 0x3fff); + tegra_dc_writel(dc, value, DC_DISP_CURSOR_POSITION); + + tegra_dc_writel(dc, CURSOR_ACT_REQ << 8, DC_CMD_STATE_CONTROL); + tegra_dc_writel(dc, CURSOR_ACT_REQ, DC_CMD_STATE_CONTROL); + + /* XXX: only required on generations earlier than Tegra124? */ + tegra_dc_writel(dc, GENERAL_ACT_REQ << 8, DC_CMD_STATE_CONTROL); + tegra_dc_writel(dc, GENERAL_ACT_REQ, DC_CMD_STATE_CONTROL); + + return 0; +} + static void tegra_dc_finish_page_flip(struct tegra_dc *dc) { struct drm_device *drm = dc->base.dev; @@ -553,6 +657,8 @@ static void tegra_dc_destroy(struct drm_crtc *crtc) } static const struct drm_crtc_funcs tegra_crtc_funcs = { + .cursor_set2 = tegra_dc_cursor_set2, + .cursor_move = tegra_dc_cursor_move, .page_flip = tegra_dc_page_flip, .set_config = drm_crtc_helper_set_config, .destroy = tegra_dc_destroy, @@ -999,6 +1105,8 @@ static int tegra_dc_show_regs(struct seq_file *s, void *data) DUMP_REG(DC_DISP_SD_BL_CONTROL); DUMP_REG(DC_DISP_SD_HW_K_VALUES); DUMP_REG(DC_DISP_SD_MAN_K_VALUES); + DUMP_REG(DC_DISP_CURSOR_START_ADDR_HI); + DUMP_REG(DC_DISP_BLEND_CURSOR_CONTROL); DUMP_REG(DC_WIN_WIN_OPTIONS); DUMP_REG(DC_WIN_BYTE_SWAP); DUMP_REG(DC_WIN_BUFFER_CONTROL); @@ -1168,14 +1276,17 @@ static const struct host1x_client_ops dc_client_ops = { static const struct tegra_dc_soc_info tegra20_dc_soc_info = { .supports_interlacing = false, + .supports_cursor = false, }; static const struct tegra_dc_soc_info tegra30_dc_soc_info = { .supports_interlacing = false, + .supports_cursor = false, }; static const struct tegra_dc_soc_info tegra124_dc_soc_info = { .supports_interlacing = true, + .supports_cursor = true, }; static const struct of_device_id tegra_dc_of_match[] = { |
