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/* linux/drivers/video/samsung/s3cfb_mdnie.c
*
* Register interface file for Samsung mDNIe 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 "s3cfb.h"
#include "s3cfb_ielcd.h"
#include "s3cfb_mdnie.h"
#include "mdnie.h"
#define s3c_mdnie_readl(addr) __raw_readl((s3c_mdnie_base + addr))
#define s3c_mdnie_writel(addr, val) __raw_writel(val, (s3c_mdnie_base + addr))
#define s3c_mdnie_write(addr, val) __raw_writel(val, (s3c_mdnie_base + addr*4))
static struct resource *s3c_mdnie_mem;
static void __iomem *s3c_mdnie_base;
int mdnie_write(unsigned int addr, unsigned int val)
{
s3c_mdnie_write(addr, val);
return 0;
}
/* should be fixed with arch */
#if defined(CONFIG_CPU_EXYNOS4210)
int s3c_mdnie_mask(void)
{
s3c_mdnie_writel(S3C_MDNIE_rR40, 0x27);
return 0;
}
int s3c_mdnie_unmask(void)
{
s3c_mdnie_writel(S3C_MDNIE_rR40, 0x0);
return 0;
}
int s3c_mdnie_set_size(unsigned int hsize, unsigned int vsize)
{
unsigned int size;
size = s3c_mdnie_readl(S3C_MDNIE_rR34);
size &= ~S3C_MDNIE_SIZE_MASK;
size |= hsize;
s3c_mdnie_writel(S3C_MDNIE_rR34, size);
size = s3c_mdnie_readl(S3C_MDNIE_rR35);
size &= ~S3C_MDNIE_SIZE_MASK;
size |= vsize;
s3c_mdnie_writel(S3C_MDNIE_rR35, size);
s3c_mdnie_unmask();
return 0;
}
#else
int s3c_mdnie_mask(void)
{
#if 0
unsigned int mask;
mask = s3c_mdnie_readl(S3C_MDNIE_rR1);
mask |= S3C_MDNIE_REG_MASK;
s3c_mdnie_writel(S3C_MDNIE_rR1, mask);
#endif
return 0;
}
int s3c_mdnie_unmask(void)
{
#if 0
unsigned int mask;
mask = s3c_mdnie_readl(S3C_MDNIE_rR1);
mask &= ~S3C_MDNIE_REG_MASK;
s3c_mdnie_writel(S3C_MDNIE_rR1, mask);
#endif
return 0;
}
int s3c_mdnie_set_size(unsigned int hsize, unsigned int vsize)
{
unsigned int size;
/* Bank0 Select */
s3c_mdnie_writel(S3C_MDNIE_rR0, 0x0);
/* Input Data Unmask */
s3c_mdnie_writel(S3C_MDNIE_rR1, 0x077);
/* LCD width */
size = s3c_mdnie_readl(S3C_MDNIE_rR3);
size &= ~S3C_MDNIE_SIZE_MASK;
size |= hsize;
s3c_mdnie_writel(S3C_MDNIE_rR3, size);
/* LCD height */
size = s3c_mdnie_readl(S3C_MDNIE_rR4);
size &= ~S3C_MDNIE_SIZE_MASK;
size |= vsize;
s3c_mdnie_writel(S3C_MDNIE_rR4, size);
/* unmask all */
s3c_mdnie_writel(S3C_MDNIE_rR28, 0);
return 0;
}
#endif
int s3c_mdnie_select_mode(int algo, int mcm, int lpa)
{
s3c_mdnie_writel(S3C_MDNIE_rR1, 0x0000);
s3c_mdnie_writel(S3C_MDNIE_rR36, 0x0000);
s3c_mdnie_writel(S3C_MDNIE_rR37, 0x0FFF);
s3c_mdnie_writel(S3C_MDNIE_rR38, 0x005c);
s3c_mdnie_writel(S3C_MDNIE_rR39, 0x0ff0);
s3c_mdnie_writel(S3C_MDNIE_rR43, 0x0064);
s3c_mdnie_writel(S3C_MDNIE_rR45, 0x0364);
return 0;
}
int s3c_mdnie_init_global(struct s3cfb_global *s3cfb_ctrl)
{
s3c_mdnie_set_size(s3cfb_ctrl->lcd->width, s3cfb_ctrl->lcd->height);
/* mDNIe_Set_Mode(current_mDNIe_UI, current_mDNIe_OutDoor_OnOff); */
/* set_mdnie_value(g_mdnie); */
s3c_ielcd_logic_start();
s3c_ielcd_init_global(s3cfb_ctrl);
return 0;
}
int s3c_mdnie_display_on(struct s3cfb_global *ctrl)
{
s3c_ielcd_display_on();
if (!IS_ERR_OR_NULL(g_mdnie))
g_mdnie->enable = TRUE;
return 0;
}
int s3c_mdnie_display_off(void)
{
if (!IS_ERR_OR_NULL(g_mdnie))
g_mdnie->enable = FALSE;
return s3c_ielcd_display_off();
}
int s3c_mdnie_off(void)
{
if (!IS_ERR_OR_NULL(g_mdnie))
g_mdnie->enable = FALSE;
s3c_ielcd_logic_stop();
return 0;
}
int s3c_mdnie_hw_init(void)
{
s3c_mdnie_mem = request_mem_region(S3C_MDNIE_PHY_BASE, S3C_MDNIE_MAP_SIZE, "mdnie");
if (s3c_mdnie_mem == NULL) {
printk(KERN_ERR "mDNIe failed to reserved memory region\n");
return -ENOENT;
}
s3c_mdnie_base = ioremap(S3C_MDNIE_PHY_BASE, S3C_MDNIE_MAP_SIZE);
if (s3c_mdnie_base == NULL) {
printk(KERN_ERR "mDNIe failed ioremap\n");
return -ENOENT;
}
printk(KERN_INFO "%s : 0x%p\n", __func__, s3c_mdnie_base);
return 0;
}
int s3c_mdnie_setup(void)
{
s3c_mdnie_hw_init();
s3c_ielcd_hw_init();
return 0;
}
MODULE_DESCRIPTION("EXYNOS mDNIe Device Driver");
MODULE_LICENSE("GPL");
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