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/*
* 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/dp_info.h>
#include <asm/arch/system.h>
#include "exynos_fb.h"
void *lcd_base;
static unsigned int panel_width, panel_height;
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 * (NBITS(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);
/* Enable flushing after LCD writes if requested */
lcd_set_flush_dcache(1);
}
#ifdef CONFIG_CMD_BMP
static void draw_logo(void)
{
int x, y;
ulong addr;
if (panel_width >= panel_info.logo_width) {
x = ((panel_width - panel_info.logo_width) >> 1);
} else {
x = 0;
printf("Warning: image width is bigger than display width\n");
}
if (panel_height >= panel_info.logo_height) {
y = ((panel_height - panel_info.logo_height) >> 1) - 4;
} else {
y = 0;
printf("Warning: image height is bigger than display height\n");
}
addr = panel_info.logo_addr;
bmp_display(addr, x, y);
}
#endif
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->dp_enabled)
exynos_init_dp();
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)
{
if (panel_info.logo_on) {
memset(lcd_base, 0, panel_width * panel_height *
(NBITS(panel_info.vl_bpix) >> 3));
#ifdef CONFIG_CMD_BMP
draw_logo();
#endif
}
lcd_panel_on(&panel_info);
}
/* dummy function */
void lcd_setcolreg(ushort regno, ushort red, ushort green, ushort blue)
{
return;
}
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