C++ (Cpp) set_cursor_image_hwの例

コード例 #1

ファイル: cursor.c プロジェクト: Mrchenkeyu/android_kernel_zte_pluto

int tegra_dc_ext_set_cursor_image(struct tegra_dc_ext_user *user,
				  struct tegra_dc_ext_cursor_image *args)
{
	struct tegra_dc_ext *ext = user->ext;
	struct tegra_dc *dc = ext->dc;
	struct nvmap_handle_ref *handle, *old_handle;
	dma_addr_t phys_addr;
	u32 size;
	int ret;

	if (!user->nvmap)
		return -EFAULT;

	size = TEGRA_DC_EXT_CURSOR_IMAGE_FLAGS_SIZE(args->flags);
#if defined(CONFIG_ARCH_TEGRA_2x_SOC) || defined(CONFIG_ARCH_TEGRA_3x_SOC)
	if (size != TEGRA_DC_EXT_CURSOR_IMAGE_FLAGS_SIZE_32x32 &&
	    size !=  TEGRA_DC_EXT_CURSOR_IMAGE_FLAGS_SIZE_64x64)
		return -EINVAL;
#else
	if (size != TEGRA_DC_EXT_CURSOR_IMAGE_FLAGS_SIZE_32x32 &&
	    size !=  TEGRA_DC_EXT_CURSOR_IMAGE_FLAGS_SIZE_64x64 &&
	    size !=  TEGRA_DC_EXT_CURSOR_IMAGE_FLAGS_SIZE_128x128 &&
	    size !=  TEGRA_DC_EXT_CURSOR_IMAGE_FLAGS_SIZE_256x256)
		return -EINVAL;
#endif

#if defined(CONFIG_ARCH_TEGRA_2x_SOC) || defined(CONFIG_ARCH_TEGRA_3x_SOC)
	if (args->flags && TEGRA_DC_EXT_CURSOR_FLAGS_RGBA_NORMAL)
		return -EINVAL;
#endif

	mutex_lock(&ext->cursor.lock);

	if (ext->cursor.user != user) {
		ret = -EACCES;
		goto unlock;
	}

	if (!ext->enabled) {
		ret = -ENXIO;
		goto unlock;
	}

	old_handle = ext->cursor.cur_handle;

	ret = tegra_dc_ext_pin_window(user, args->buff_id, &handle, &phys_addr);
	if (ret)
		goto unlock;

	ext->cursor.cur_handle = handle;

	mutex_lock(&dc->lock);
	tegra_dc_io_start(dc);
	tegra_dc_hold_dc_out(dc);

	set_cursor_image_hw(dc, args, phys_addr);

	tegra_dc_writel(dc, GENERAL_ACT_REQ << 8, DC_CMD_STATE_CONTROL);
	tegra_dc_writel(dc, GENERAL_ACT_REQ, DC_CMD_STATE_CONTROL);

	tegra_dc_release_dc_out(dc);
	tegra_dc_io_end(dc);
	/* XXX sync here? */

	mutex_unlock(&dc->lock);

	mutex_unlock(&ext->cursor.lock);

	if (old_handle) {
		nvmap_unpin(ext->nvmap, old_handle);
		nvmap_free(ext->nvmap, old_handle);
	}

	return 0;

unlock:
	mutex_unlock(&ext->cursor.lock);

	return ret;
}

コード例 #2

int tegra_dc_ext_set_cursor_image(struct tegra_dc_ext_user *user,
				  struct tegra_dc_ext_cursor_image *args)
{
	struct tegra_dc_ext *ext = user->ext;
	struct tegra_dc *dc = ext->dc;
	struct nvmap_handle_ref *handle, *old_handle;
	dma_addr_t phys_addr;
	u32 size;
	int ret;

	if (!user->nvmap)
		return -EFAULT;

	size = args->flags & (TEGRA_DC_EXT_CURSOR_IMAGE_FLAGS_SIZE_32x32 |
			      TEGRA_DC_EXT_CURSOR_IMAGE_FLAGS_SIZE_64x64);

	if (size != TEGRA_DC_EXT_CURSOR_IMAGE_FLAGS_SIZE_32x32 &&
	    size !=  TEGRA_DC_EXT_CURSOR_IMAGE_FLAGS_SIZE_64x64)
		return -EINVAL;

	mutex_lock(&ext->cursor.lock);

	if (ext->cursor.user != user) {
		ret = -EACCES;
		goto unlock;
	}

	if (!ext->enabled) {
		ret = -ENXIO;
		goto unlock;
	}

	old_handle = ext->cursor.cur_handle;

	ret = tegra_dc_ext_pin_window(user, args->buff_id, &handle, &phys_addr);
	if (ret)
		goto unlock;

	ext->cursor.cur_handle = handle;

	mutex_lock(&dc->lock);

	set_cursor_image_hw(dc, args, phys_addr);

	tegra_dc_writel(dc, GENERAL_ACT_REQ << 8, DC_CMD_STATE_CONTROL);
	tegra_dc_writel(dc, GENERAL_ACT_REQ, DC_CMD_STATE_CONTROL);

	/* XXX sync here? */

	mutex_unlock(&dc->lock);

	mutex_unlock(&ext->cursor.lock);

	if (old_handle) {
		nvmap_unpin(ext->nvmap, old_handle);
		nvmap_free(ext->nvmap, old_handle);
	}

	return 0;

unlock:
	mutex_unlock(&ext->cursor.lock);

	return ret;
}