diff options
Diffstat (limited to 'drivers/video/samsung/s3cfb_ielcd.c')
| -rw-r--r-- | drivers/video/samsung/s3cfb_ielcd.c | 186 |
1 files changed, 186 insertions, 0 deletions
diff --git a/drivers/video/samsung/s3cfb_ielcd.c b/drivers/video/samsung/s3cfb_ielcd.c new file mode 100644 index 0000000..9c17459 --- /dev/null +++ b/drivers/video/samsung/s3cfb_ielcd.c @@ -0,0 +1,186 @@ +/* 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); + + |