diff options
Diffstat (limited to 'drivers/video/exynos_fb.c')
-rw-r--r-- | drivers/video/exynos_fb.c | 128 |
1 files changed, 128 insertions, 0 deletions
diff --git a/drivers/video/exynos_fb.c b/drivers/video/exynos_fb.c new file mode 100644 index 0000000..0eb7f58 --- /dev/null +++ b/drivers/video/exynos_fb.c @@ -0,0 +1,128 @@ +/* + * Copyright (C) 2012 Samsung Electronics + * + * Author: InKi Dae <inki.dae@samsung.com> + * Author: Donghwa Lee <dh09.lee@samsung.com> + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * 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. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ + +#include <config.h> +#include <common.h> +#include <lcd.h> +#include <asm/io.h> +#include <asm/arch/cpu.h> +#include <asm/arch/clock.h> +#include <asm/arch/clk.h> +#include <asm/arch/mipi_dsim.h> +#include <asm/arch/system.h> + +#include "exynos_fb.h" + +int lcd_line_length; +int lcd_color_fg; +int lcd_color_bg; + +void *lcd_base; +void *lcd_console_address; + +short console_col; +short console_row; + +static unsigned int panel_width, panel_height; + +/* LCD Panel data */ +vidinfo_t panel_info; + +static void exynos_lcd_init_mem(void *lcdbase, vidinfo_t *vid) +{ + unsigned long palette_size; + unsigned int fb_size; + + fb_size = vid->vl_row * vid->vl_col * (vid->vl_bpix >> 3); + + lcd_base = lcdbase; + + palette_size = NBITS(vid->vl_bpix) == 8 ? 256 : 16; + + exynos_fimd_lcd_init_mem((unsigned long)lcd_base, + (unsigned long)fb_size, palette_size); +} + +static void exynos_lcd_init(vidinfo_t *vid) +{ + exynos_fimd_lcd_init(vid); +} + +static void lcd_panel_on(vidinfo_t *vid) +{ + udelay(vid->init_delay); + + if (vid->backlight_reset) + vid->backlight_reset(); + + if (vid->cfg_gpio) + vid->cfg_gpio(); + + if (vid->lcd_power_on) + vid->lcd_power_on(); + + udelay(vid->power_on_delay); + + if (vid->reset_lcd) { + vid->reset_lcd(); + udelay(vid->reset_delay); + } + + if (vid->backlight_on) + vid->backlight_on(1); + + if (vid->cfg_ldo) + vid->cfg_ldo(); + + if (vid->enable_ldo) + vid->enable_ldo(1); + + if (vid->mipi_enabled) + exynos_mipi_dsi_init(); +} + +void lcd_ctrl_init(void *lcdbase) +{ + set_system_display_ctrl(); + set_lcd_clk(); + + /* initialize parameters which is specific to panel. */ + init_panel_info(&panel_info); + + panel_width = panel_info.vl_width; + panel_height = panel_info.vl_height; + + exynos_lcd_init_mem(lcdbase, &panel_info); + + exynos_lcd_init(&panel_info); +} + +void lcd_enable(void) +{ + lcd_panel_on(&panel_info); +} + +/* dummy function */ +void lcd_setcolreg(ushort regno, ushort red, ushort green, ushort blue) +{ + return; +} |