diff options
Diffstat (limited to 'drivers/video/tegra/dc/csc.c')
| -rw-r--r-- | drivers/video/tegra/dc/csc.c | 67 |
1 files changed, 67 insertions, 0 deletions
diff --git a/drivers/video/tegra/dc/csc.c b/drivers/video/tegra/dc/csc.c new file mode 100644 index 000000000000..74fa900352a1 --- /dev/null +++ b/drivers/video/tegra/dc/csc.c @@ -0,0 +1,67 @@ +/* + * drivers/video/tegra/dc/csc.c + * + * Copyright (c) 2010-2012, NVIDIA CORPORATION, All rights reserved. + * + * This software is licensed under the terms of the GNU General Public + * License version 2, as published by the Free Software Foundation, and + * may be copied, distributed, and modified under those terms. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + */ + +#include <linux/err.h> +#include <linux/types.h> +#include <mach/dc.h> + +#include "dc_reg.h" +#include "dc_priv.h" + +void tegra_dc_init_csc_defaults(struct tegra_dc_csc *csc) +{ + csc->yof = 0x00f0; + csc->kyrgb = 0x012a; + csc->kur = 0x0000; + csc->kvr = 0x0198; + csc->kug = 0x039b; + csc->kvg = 0x032f; + csc->kub = 0x0204; + csc->kvb = 0x0000; +} + +void tegra_dc_set_csc(struct tegra_dc *dc, struct tegra_dc_csc *csc) +{ + tegra_dc_writel(dc, csc->yof, DC_WIN_CSC_YOF); + tegra_dc_writel(dc, csc->kyrgb, DC_WIN_CSC_KYRGB); + tegra_dc_writel(dc, csc->kur, DC_WIN_CSC_KUR); + tegra_dc_writel(dc, csc->kvr, DC_WIN_CSC_KVR); + tegra_dc_writel(dc, csc->kug, DC_WIN_CSC_KUG); + tegra_dc_writel(dc, csc->kvg, DC_WIN_CSC_KVG); + tegra_dc_writel(dc, csc->kub, DC_WIN_CSC_KUB); + tegra_dc_writel(dc, csc->kvb, DC_WIN_CSC_KVB); +} + +int tegra_dc_update_csc(struct tegra_dc *dc, int win_idx) +{ + mutex_lock(&dc->lock); + + if (!dc->enabled) { + mutex_unlock(&dc->lock); + return -EFAULT; + } + + tegra_dc_writel(dc, WINDOW_A_SELECT << win_idx, + DC_CMD_DISPLAY_WINDOW_HEADER); + + tegra_dc_set_csc(dc, &dc->windows[win_idx].csc); + + mutex_unlock(&dc->lock); + + return 0; +} +EXPORT_SYMBOL(tegra_dc_update_csc); + |