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/* linux/drivers/video/samsung/s3cfb_mdnie.c
*
* Register interface file for Samsung IELCD driver
*
* Copyright (c) 2009 Samsung Electronics
* http://www.samsungsemi.com/
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/errno.h>
#include <linux/clk.h>
#include <linux/mutex.h>
#include <linux/poll.h>
#include <linux/wait.h>
#include <linux/fs.h>
#include <linux/irq.h>
#include <linux/mm.h>
#include <linux/fb.h>
#include <linux/ctype.h>
#include <linux/miscdevice.h>
#include <linux/dma-mapping.h>
#include <linux/delay.h>
#include <linux/device.h>
#include <asm/io.h>
#include <mach/map.h>
#include <plat/clock.h>
#include <plat/fb.h>
#include <plat/regs-fb.h>
#include <plat/pm.h>
#include "s3cfb.h"
#include "s3cfb_mdnie.h"
#include "s3cfb_ielcd.h"
static struct resource *s3c_ielcd_mem;
static void __iomem *s3c_ielcd_base;
#define s3c_ielcd_readl(addr) __raw_readl((s3c_ielcd_base + addr))
#define s3c_ielcd_writel(val,addr) __raw_writel(val,(s3c_ielcd_base + addr))
static struct s3cfb_global ielcd_fb;
static struct s3cfb_global *ielcd_fbdev;
static char banner[] __initdata = KERN_INFO "S3C IELCD Driver, (c) 2010 Samsung Electronics\n";
int s3c_ielcd_hw_init(void)
{
printk("IELCD INIT ..........\n");
printk(banner);
s3c_ielcd_mem = request_mem_region(S3C_IELCD_PHY_BASE,S3C_IELCD_MAP_SIZE,"ielcd");
if(s3c_ielcd_mem == NULL) {
printk(KERN_ERR "IELCD: failed to reserved memory region\n");
return -ENOENT;
}
s3c_ielcd_base = ioremap(S3C_IELCD_PHY_BASE,S3C_IELCD_MAP_SIZE);
if(s3c_ielcd_base == NULL) {
printk(KERN_ERR "IELCD failed ioremap\n");
return -ENOENT;
}
printk("IELCD INIT SUCCESS Addr : 0x%p\n",s3c_ielcd_base);
ielcd_fbdev = &ielcd_fb;
//s3c_ielcd_writel(3,S3C_IELCD_DULACON);
return 0;
}
int s3c_ielcd_logic_start(void)
{
s3c_ielcd_writel(S3C_IELCD_MAGIC_KEY,S3C_IELCD_MODE);
return 0;
}
int s3c_ielcd_logic_stop(void)
{
s3c_ielcd_writel(0,S3C_IELCD_MODE);
return 0;
}
int s3c_ielcd_start(void)
{
unsigned int con;
con = s3c_ielcd_readl(S3C_IELCD_VIDCON0);
con |= (S3C_VIDCON0_ENVID_ENABLE| S3C_VIDCON0_ENVID_F_ENABLE);
s3c_ielcd_writel(con,S3C_IELCD_VIDCON0);
return 0;
}
int s3c_ielcd_stop(void)
{
unsigned int con;
con = s3c_ielcd_readl(S3C_IELCD_VIDCON0);
//con &= ~(S3C_VIDCON0_ENVID_ENABLE| S3C_VIDCON0_ENVID_F_ENABLE);
con &= ~(S3C_VIDCON0_ENVID_F_ENABLE);
s3c_ielcd_writel(con,S3C_IELCD_VIDCON0);
return 0;
}
int s3c_ielcd_init_global(struct s3cfb_global *ctrl)
{
unsigned int cfg;
*ielcd_fbdev = *ctrl;
ielcd_fbdev->regs = s3c_ielcd_base;
s3cfb_set_polarity(ielcd_fbdev);
s3cfb_set_timing(ielcd_fbdev);
s3cfb_set_lcd_size(ielcd_fbdev);
// dithmode
s3c_ielcd_writel(0x0,S3C_IELCD_DITHMODE);
// clk mode and mode
// read from lcd vid con
cfg = readl(ctrl->regs + S3C_VIDCON0);
cfg &= ~((7 << 26) | (1 << 5) | (1 << 0));
cfg |= (0 << 26| 0 << 5);
s3c_ielcd_writel(cfg,S3C_IELCD_VIDCON0);
s3c_ielcd_writel(1<<5,S3C_IELCD_VIDINTCON0);
s3cfb_set_vsync_interrupt(ielcd_fbdev, 0);
s3cfb_set_global_interrupt(ielcd_fbdev, 0);
//s3cfb_display_on(ielcd_fbdev);
s3c_ielcd_writel(0,S3C_IELCD_VIDOSD0A);
s3c_ielcd_writel((ctrl->lcd->width - 1) << 11 | (ctrl->lcd->height - 1), S3C_IELCD_VIDOSD0B);
s3c_ielcd_writel((ctrl->lcd->width * ctrl->lcd->height ), S3C_IELCD_VIDOSD0C);
cfg = S3C_WINCON_DATAPATH_LOCAL|S3C_WINCON_BPPMODE_32BPP;
cfg |= S3C_WINCON_INRGB_RGB;
s3c_ielcd_writel(cfg,S3C_IELCD_WINCON0);
s3cfb_window_on(ielcd_fbdev,0);
return 0;
}
int s3c_ielcd_set_clock(struct s3cfb_global *ctrl)
{
*ielcd_fbdev = *ctrl;
ielcd_fbdev->regs = s3c_ielcd_base;
s3cfb_set_clock(ctrl);
//clk_enable(ielcd_clock);
return 0;
}
//module_init(s3c_ielcd_hw_init);
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