path: root/target/linux/s3c24xx/patches-2.6.24/1169-uplevel-samsung-camera-unit.patch.patch

From 1ccc3052a80284d3d7fbdfc0badadf6ae4236f79 Mon Sep 17 00:00:00 2001
From: Andy Green <andy@opennoko.com>
Date: Wed, 2 Jul 2008 22:37:38 +0100
Subject: [PATCH] uplevel-samsung-camera-unit.patch

Update this old code to clk API, I2C changes, official GPIO API
various struct changes, explicit readl() writel(), DMA API changes.
Still not ready for actual use (eg, I2C) but a LOT closer.

Compiles on 2.6.24 without errors or warnings now.

Use CONFIG_S3C2440_CAMERA=y in .config

Signed-off-by: Andy Green <andy@openmoko.com>
---
 arch/arm/mach-s3c2440/Kconfig               |    5 +-
 arch/arm/mach-s3c2440/Makefile              |   26 +-
 arch/arm/mach-s3c2440/camera/Makefile       |    1 -
 arch/arm/mach-s3c2440/camera/cam_reg.h      |   92 +++--
 arch/arm/mach-s3c2440/camera/camif.c        |  633 +++++++++++++++------------
 arch/arm/mach-s3c2440/camera/camif_fsm.c    |    5 +
 arch/arm/mach-s3c2440/camera/imgsensor.c    |   43 +-
 arch/arm/mach-s3c2440/camera/qt-driver.c    |    5 +-
 arch/arm/mach-s3c2440/camera/video-driver.c |   87 +++--
 arch/arm/mach-s3c2440/camera/videodev.c     |   24 +-
 arch/arm/mach-s3c2440/camera/videodev.h     |   16 +-
 11 files changed, 533 insertions(+), 404 deletions(-)

diff --git a/arch/arm/mach-s3c2440/Kconfig b/arch/arm/mach-s3c2440/Kconfig
index c350511..4a211d8 100644
--- a/arch/arm/mach-s3c2440/Kconfig
+++ b/arch/arm/mach-s3c2440/Kconfig
@@ -30,9 +30,6 @@ config S3C2440_C_FIQ
 	  Support for S3C2440 FIQ support in C -- see
 	  ./arch/arm/macs3c2440/fiq_c_isr.c
 
-source "arch/arm/mach-s3c2440/camera/Kconfig"
-
-
 menu "S3C2440 Machines"
 
 config MACH_ANUBIS
@@ -102,3 +99,5 @@ config NEO1973_GTA02_2440
 	   of the FIC/Openmoko Neo1973 GTA02 GSM Phone.
 
 endmenu
+
+#source "arch/arm/mach-s3c2440/camera/Kconfig"
diff --git a/arch/arm/mach-s3c2440/Makefile b/arch/arm/mach-s3c2440/Makefile
index 7112231..e3ca9e3 100644
--- a/arch/arm/mach-s3c2440/Makefile
+++ b/arch/arm/mach-s3c2440/Makefile
@@ -1,2 +1,26 @@
-obj-y                           += camera/
+# arch/arm/mach-s3c2440/Makefile
+#
+# Copyright 2007 Simtec Electronics
+#
+# Licensed under GPLv2
 
+obj-y				:=
+obj-m				:=
+obj-n				:=
+obj-				:=
+
+obj-$(CONFIG_CPU_S3C2440)	+= s3c2440.o dsc.o
+obj-$(CONFIG_CPU_S3C2440)	+= irq.o
+obj-$(CONFIG_CPU_S3C2440)	+= clock.o
+obj-$(CONFIG_S3C2440_DMA)	+= dma.o
+obj-$(CONFIG_S3C2440_C_FIQ)	+= fiq_c_isr.o
+
+# Machine support
+
+obj-$(CONFIG_MACH_ANUBIS)	+= mach-anubis.o
+obj-$(CONFIG_MACH_OSIRIS)	+= mach-osiris.o
+obj-$(CONFIG_MACH_RX3715)	+= mach-rx3715.o
+obj-$(CONFIG_ARCH_S3C2440)	+= mach-smdk2440.o
+obj-$(CONFIG_MACH_NEXCODER_2440) += mach-nexcoder.o
+obj-$(CONFIG_MACH_HXD8)		+= mach-hxd8.o
+obj-$(CONFIG_MACH_NEO1973_GTA02) += mach-gta02.o
diff --git a/arch/arm/mach-s3c2440/camera/Makefile b/arch/arm/mach-s3c2440/camera/Makefile
index a46d3be..9cd6d79 100644
--- a/arch/arm/mach-s3c2440/camera/Makefile
+++ b/arch/arm/mach-s3c2440/camera/Makefile
@@ -1,7 +1,6 @@
 obj-$(CONFIG_S3C2440_CAMERA) += \
 	videodev.o \
 	imgsensor.o \
-	videodrv.o \
 	video-driver.o \
 	camif.o \
 	camif_fsm.o \
diff --git a/arch/arm/mach-s3c2440/camera/cam_reg.h b/arch/arm/mach-s3c2440/camera/cam_reg.h
index 7247a4e..93d59b8 100644
--- a/arch/arm/mach-s3c2440/camera/cam_reg.h
+++ b/arch/arm/mach-s3c2440/camera/cam_reg.h
@@ -7,6 +7,7 @@
 #ifndef __FIMC20_CAMERA_H__
 #define __FIMC20_CAMERA_H__
 
+extern u32 * camregs;
 
 #ifdef CONFIG_ARCH_S3C24A0
 #define CAM_BASE_ADD             0x48000000
@@ -14,10 +15,23 @@
 #define CAM_BASE_ADD             0x4F000000
 #endif
 
+#if ! defined(FExtr)
+#define UData(Data)     ((unsigned long) (Data))
+#define FExtr(Data, Field) \
+                        ((UData (Data) >> FShft (Field)) & FAlnMsk (Field))
+#define FInsrt(Value, Field) \
+                        (UData (Value) << FShft (Field))
+#define FSize(Field)    ((Field) >> 16)
+#define FShft(Field)    ((Field) & 0x0000FFFF)
+#define FMsk(Field)     (((UData (1) << FSize (Field)) - 1) << FShft (Field))
+#define FAlnMsk(Field)  ((UData (1) << FSize (Field)) - 1)
+#define F1stBit(Field)  (UData (1) << FShft (Field))
+#define Fld(Size, Shft) (((Size) << 16) + (Shft))
+#endif
 
 /*
  * CAMERA IP
- * P-port is used as RGB Capturing device which including scale and crop 
+ * P-port is used as RGB Capturing device which including scale and crop
  *  those who want to see(preview ) the image on display needs RGB image.
  *
  * C-port is used as YCbCr(4:2:0, 4:2:2) Capturing device which including the scale and crop
@@ -25,45 +39,45 @@
      YCBCB format not RGB 
  */ 
 
-#define CISRCFMT            __REG(CAM_BASE_ADD+0x00) // RW Input Source Format
-#define CIWDOFST            __REG(CAM_BASE_ADD+0x04) // Window offset register
-#define CIGCTRL             __REG(CAM_BASE_ADD+0x08) // Global control register
-#define CICOYSA0            __REG(CAM_BASE_ADD+0x18) // Y 1 st frame start address 
-#define CICOYSA1            __REG(CAM_BASE_ADD+0x1C) // Y 2 nd frame start address 
-#define CICOYSA2            __REG(CAM_BASE_ADD+0x20) // Y 3 rd frame start address 
-#define CICOYSA3            __REG(CAM_BASE_ADD+0x24) // Y 4 th frame start address 
-#define CICOCBSA0           __REG(CAM_BASE_ADD+0x28) // Cb 1 st frame start address 
-#define CICOCBSA1           __REG(CAM_BASE_ADD+0x2C) // Cb 2 nd frame start address 
-#define CICOCBSA2           __REG(CAM_BASE_ADD+0x30) // Cb 3 rd frame start address 
-#define CICOCBSA3           __REG(CAM_BASE_ADD+0x34) // Cb 4 th frame start address 
-#define CICOCRSA0           __REG(CAM_BASE_ADD+0x38) // Cr 1 st frame start address 
-#define CICOCRSA1           __REG(CAM_BASE_ADD+0x3C) // Cr 2 nd frame start address 
-#define CICOCRSA2           __REG(CAM_BASE_ADD+0x40) // Cr 3 rd frame start address 
-#define CICOCRSA3           __REG(CAM_BASE_ADD+0x44) // Cr 4 th frame start address 
-#define CICOTRGFMT          __REG(CAM_BASE_ADD+0x48) // Target image format of codec
-#define CICOCTRL            __REG(CAM_BASE_ADD+0x4C) // Codec DMA control related
-#define CICOSCPRERATIO      __REG(CAM_BASE_ADD+0x50) // Codec pre-scaler ratio control
-#define CICOSCPREDST        __REG(CAM_BASE_ADD+0x54) // Codec pre-scaler destination
-#define CICOSCCTRL          __REG(CAM_BASE_ADD+0x58) // Codec main-scaler control
-#define CICOTAREA           __REG(CAM_BASE_ADD+0x5C) // Codec pre-scaler destination
-#define CICOSTATUS          __REG(CAM_BASE_ADD+0x64) // Codec path status
-#define CIPRCLRSA0          __REG(CAM_BASE_ADD+0x6C) // RGB 1 st frame start address 
-#define CIPRCLRSA1          __REG(CAM_BASE_ADD+0x70) // RGB 2 nd frame start address 
-#define CIPRCLRSA2          __REG(CAM_BASE_ADD+0x74) // RGB 3 rd frame start address 
-#define CIPRCLRSA3          __REG(CAM_BASE_ADD+0x78) // RGB 4 th frame start address 
-#define CIPRTRGFMT          __REG(CAM_BASE_ADD+0x7C) // Target image format of preview
-#define CIPRCTRL            __REG(CAM_BASE_ADD+0x80) // Preview DMA control related
-#define CIPRSCPRERATIO      __REG(CAM_BASE_ADD+0x84) // Preview pre-scaler ratio control
-#define CIPRSCPREDST        __REG(CAM_BASE_ADD+0x88) // Preview pre-scaler destination
-#define CIPRSCCTRL          __REG(CAM_BASE_ADD+0x8C) // Preview main-scaler control
-#define CIPRTAREA           __REG(CAM_BASE_ADD+0x90) // Preview pre-scaler destination
-#define CIPRSTATUS          __REG(CAM_BASE_ADD+0x98) // Preview path status
-#define CIIMGCPT            __REG(CAM_BASE_ADD+0xA0) // Image capture enable command
-
-#define CICOYSA(__x)        __REG(CAM_BASE_ADD+0x18 + (__x)*4 ) 
-#define CICOCBSA(__x)       __REG(CAM_BASE_ADD+0x28 + (__x)*4 )
-#define CICOCRSA(__x)       __REG(CAM_BASE_ADD+0x38 + (__x)*4 ) 
-#define CIPRCLRSA(__x)      __REG(CAM_BASE_ADD+0x6C + (__x)*4 )
+#define S3C2440_CAM_REG_CISRCFMT            (0x00) // RW Input Source Format
+#define S3C2440_CAM_REG_CIWDOFST            (0x04) // Window offset register
+#define S3C2440_CAM_REG_CIGCTRL             (0x08) // Global control register
+#define S3C2440_CAM_REG_CICOYSA0            (0x18) // Y 1 st frame start ads
+#define S3C2440_CAM_REG_CICOYSA1            (0x1C) // Y 2 nd frame start ads
+#define S3C2440_CAM_REG_CICOYSA2            (0x20) // Y 3 rd frame start ads
+#define S3C2440_CAM_REG_CICOYSA3            (0x24) // Y 4 th frame start ads
+#define S3C2440_CAM_REG_CICOCBSA0           (0x28) // Cb 1 st frame start ads
+#define S3C2440_CAM_REG_CICOCBSA1           (0x2C) // Cb 2 nd frame start ads
+#define S3C2440_CAM_REG_CICOCBSA2           (0x30) // Cb 3 rd frame start ads
+#define S3C2440_CAM_REG_CICOCBSA3           (0x34) // Cb 4 th frame start ads
+#define S3C2440_CAM_REG_CICOCRSA0           (0x38) // Cr 1 st frame start ads
+#define S3C2440_CAM_REG_CICOCRSA1           (0x3C) // Cr 2 nd frame start ads
+#define S3C2440_CAM_REG_CICOCRSA2           (0x40) // Cr 3 rd frame start ads
+#define S3C2440_CAM_REG_CICOCRSA3           (0x44) // Cr 4 th frame start ads
+#define S3C2440_CAM_REG_CICOTRGFMT          (0x48) // Target img format of codec
+#define S3C2440_CAM_REG_CICOCTRL            (0x4C) // Codec DMA control related
+#define S3C2440_CAM_REG_CICOSCPRERATIO      (0x50) // Codec pre-scaler ratio
+#define S3C2440_CAM_REG_CICOSCPREDST        (0x54) // Codec pre-scaler dest
+#define S3C2440_CAM_REG_CICOSCCTRL          (0x58) // Codec main-scaler control
+#define S3C2440_CAM_REG_CICOTAREA           (0x5C) // Codec pre-scaler dest
+#define S3C2440_CAM_REG_CICOSTATUS          (0x64) // Codec path status
+#define S3C2440_CAM_REG_CIPRCLRSA0          (0x6C) // RGB 1 st frame start ads
+#define S3C2440_CAM_REG_CIPRCLRSA1          (0x70) // RGB 2 nd frame start ads
+#define S3C2440_CAM_REG_CIPRCLRSA2          (0x74) // RGB 3 rd frame start ads
+#define S3C2440_CAM_REG_CIPRCLRSA3          (0x78) // RGB 4 th frame start ads
+#define S3C2440_CAM_REG_CIPRTRGFMT          (0x7C) // Target img fmt of preview
+#define S3C2440_CAM_REG_CIPRCTRL            (0x80) // Preview DMA ctl related
+#define S3C2440_CAM_REG_CIPRSCPRERATIO      (0x84) // Preview pre-scaler ratio
+#define S3C2440_CAM_REG_CIPRSCPREDST        (0x88) // Preview pre-scaler dest
+#define S3C2440_CAM_REG_CIPRSCCTRL          (0x8C) // Preview main-scaler ctl
+#define S3C2440_CAM_REG_CIPRTAREA           (0x90) // Preview pre-scaler dest
+#define S3C2440_CAM_REG_CIPRSTATUS          (0x98) // Preview path status
+#define S3C2440_CAM_REG_CIIMGCPT            (0xA0) // Image capture enable cmd
+
+#define S3C2440_CAM_REG_CICOYSA(__x)        (0x18 + (__x)*4 )
+#define S3C2440_CAM_REG_CICOCBSA(__x)       (0x28 + (__x)*4 )
+#define S3C2440_CAM_REG_CICOCRSA(__x)       (0x38 + (__x)*4 )
+#define S3C2440_CAM_REG_CIPRCLRSA(__x)      (0x6C + (__x)*4 )
 
 /* CISRCFMT BitField */
 #define SRCFMT_ITU601       BIT31
diff --git a/arch/arm/mach-s3c2440/camera/camif.c b/arch/arm/mach-s3c2440/camera/camif.c
index 36d4ccc..2e97e21 100644
--- a/arch/arm/mach-s3c2440/camera/camif.c
+++ b/arch/arm/mach-s3c2440/camera/camif.c
@@ -7,14 +7,11 @@
  * for more details.
  */
 
-#include <linux/config.h>
 #include <linux/module.h>
 #include <linux/kernel.h>
 #include <linux/init.h>
 #include <linux/sched.h>
 #include <linux/irq.h>
-#include <linux/tqueue.h>
-#include <linux/locks.h>
 #include <linux/completion.h>
 #include <linux/delay.h>
 #include <linux/slab.h>
@@ -26,28 +23,29 @@
 #include <asm/semaphore.h>
 #include <asm/hardware.h>
 #include <asm/uaccess.h>
+#include <linux/device.h>
+#include <linux/dma-mapping.h>
+#include <linux/clk.h>
 
 #ifdef CONFIG_ARCH_S3C24A0A
 #include <asm/arch/S3C24A0.h>
 #include <asm/arch/clocks.h>
 #else
-#include <asm/arch/S3C2440.h>
-#include <asm/arch/clocks.h>
+#include <asm/arch/regs-gpio.h>
+#include <asm/arch/regs-gpioj.h>
+#include <asm/arch/regs-irq.h>
 #endif
 
 #include "cam_reg.h"
 //#define SW_DEBUG
+#define CONFIG_VIDEO_V4L1_COMPAT
+#include <linux/videodev.h>
 #include "camif.h"
-#include "videodev.h"
 #include "miscdevice.h"
 
-
 static int camif_dma_burst(camif_cfg_t *);
 static int camif_scaler(camif_cfg_t *);
 
-static const char *camif_version =
-        "$Id: camif.c,v 1.10 2004/06/04 04:24:14 swlee Exp $";
-	
 /* For SXGA Image */
 #define RESERVE_MEM  15*1024*1024
 #define YUV_MEM      10*1024*1024
@@ -66,11 +64,13 @@ static int camif_malloc(camif_cfg_t *cfg)
 		t_size = t_size *cfg->pp_num;
 
 #ifndef SAMSUNG_SXGA_CAM
-		cfg->pp_virt_buf = consistent_alloc(GFP_KERNEL, t_size, &cfg->pp_phys_buf);
+		cfg->pp_virt_buf = dma_alloc_coherent(cfg->v->dev,
+						      t_size, &cfg->pp_phys_buf,
+						      GFP_KERNEL);
 #else
 		printk(KERN_INFO "Reserving High RAM Addresses \n");
 		cfg->pp_phys_buf = PHYS_OFFSET + (MEM_SIZE - RESERVE_MEM);
-		cfg->pp_virt_buf = ioremap_nocache(cfg->pp_phys_buf,YUV_MEM);
+		cfg->pp_virt_buf = ioremap_nocache(cfg->pp_phys_buf, YUV_MEM);
 #endif
 
 		if ( !cfg->pp_virt_buf ) {
@@ -90,7 +90,9 @@ static int camif_malloc(camif_cfg_t *cfg)
 		}
 		t_size = t_size * cfg->pp_num;
 #ifndef SAMSUNG_SXGA_CAM
-		cfg->pp_virt_buf = consistent_alloc(GFP_KERNEL, t_size, &cfg->pp_phys_buf);
+		cfg->pp_virt_buf = dma_alloc_coherent(cfg->v->dev,
+						      t_size, &cfg->pp_phys_buf,
+						      GFP_KERNEL);
 #else
 		printk(KERN_INFO "Reserving High RAM Addresses \n");
 		cfg->pp_phys_buf = PHYS_OFFSET + (MEM_SIZE - RESERVE_MEM ) + YUV_MEM;
@@ -112,7 +114,8 @@ static int camif_demalloc(camif_cfg_t *cfg)
 {
 #ifndef SAMSUNG_SXGA_CAM
 	if ( cfg->pp_virt_buf ) {
-		consistent_free(cfg->pp_virt_buf,cfg->pp_totalsize,cfg->pp_phys_buf);
+		dma_free_coherent(cfg->v->dev, cfg->pp_totalsize,
+				  cfg->pp_virt_buf, cfg->pp_phys_buf);
 		cfg->pp_virt_buf = 0;
 	}
 #else
@@ -131,13 +134,14 @@ int camif_g_frame_num(camif_cfg_t *cfg)
 	int index = 0;
 
 	if (cfg->dma_type & CAMIF_CODEC ) {
-		index = FRAME_CNT(CICOSTATUS);
+		index = FRAME_CNT(readl(camregs + S3C2440_CAM_REG_CICOSTATUS));
 		DPRINTK("CAMIF_CODEC frame %d \n", index);
 	}
 	else {
 		assert(cfg->dma_type & CAMIF_PREVIEW );
-		index = FRAME_CNT(CIPRSTATUS);
-		DPRINTK("CAMIF_PREVIEW frame %d  0x%08X \n", index, CIPRSTATUS);
+		index = FRAME_CNT(readl(camregs + S3C2440_CAM_REG_CIPRSTATUS));
+		DPRINTK("CAMIF_PREVIEW frame %d  0x%08X \n", index,
+			readl(camregs + S3C2440_CAM_REG_CIPRSTATUS));
 	}
 	cfg->now_frame_num = (index + 2) % 4; /* When 4 PingPong */
 	return index; /* meaningless */
@@ -148,60 +152,59 @@ static int camif_pp_codec(camif_cfg_t *cfg)
 	u32 i, c_size; /* Cb,Cr size */
 	u32 one_p_size;
 	u32 daon = cfg->target_x * cfg->target_y;
-	if (cfg->fmt & CAMIF_OUT_YCBCR420) {
-		c_size = daon /4;
-	}
+	if (cfg->fmt & CAMIF_OUT_YCBCR420)
+		c_size = daon / 4;
 	else {
 		assert(cfg->fmt & CAMIF_OUT_YCBCR422);
-		c_size = daon /2;
+		c_size = daon / 2;
 	}
 	switch ( cfg->pp_num ) {
-		case 1 :
-			for ( i =0 ; i < 4; i=i+1) {
-				cfg->img_buf[i].virt_y = cfg->pp_virt_buf;
-				cfg->img_buf[i].phys_y = cfg->pp_phys_buf;
-				cfg->img_buf[i].virt_cb = cfg->pp_virt_buf + daon; 
-				cfg->img_buf[i].phys_cb = cfg->pp_phys_buf + daon;
-				cfg->img_buf[i].virt_cr = cfg->pp_virt_buf + daon + c_size;
-				cfg->img_buf[i].phys_cr = cfg->pp_phys_buf + daon + c_size;
-				CICOYSA(i)  =  cfg->img_buf[i].phys_y;
-				CICOCBSA(i) =  cfg->img_buf[i].phys_cb;
-				CICOCRSA(i) =  cfg->img_buf[i].phys_cr;
-			}
-			break;
-		case 2:
+	case 1 :
+		for (i =0 ; i < 4; i++) {
+			cfg->img_buf[i].virt_y = cfg->pp_virt_buf;
+			cfg->img_buf[i].phys_y = cfg->pp_phys_buf;
+			cfg->img_buf[i].virt_cb = cfg->pp_virt_buf + daon;
+			cfg->img_buf[i].phys_cb = cfg->pp_phys_buf + daon;
+			cfg->img_buf[i].virt_cr = cfg->pp_virt_buf + daon + c_size;
+			cfg->img_buf[i].phys_cr = cfg->pp_phys_buf + daon + c_size;
+			writel(cfg->img_buf[i].phys_y, camregs + S3C2440_CAM_REG_CICOYSA(i));
+			writel(cfg->img_buf[i].phys_cb, camregs + S3C2440_CAM_REG_CICOCBSA(i));
+			writel(cfg->img_buf[i].phys_cr, camregs + S3C2440_CAM_REG_CICOCRSA(i));
+		}
+		break;
+	case 2:
 #define  TRY   (( i%2 ) ? 1 :0)
-			one_p_size = daon + 2*c_size;
-			for (i = 0; i < 4  ; i++) {
-				cfg->img_buf[i].virt_y = cfg->pp_virt_buf + TRY * one_p_size;
-				cfg->img_buf[i].phys_y = cfg->pp_phys_buf + TRY * one_p_size;
-				cfg->img_buf[i].virt_cb = cfg->pp_virt_buf + daon + TRY * one_p_size;
-				cfg->img_buf[i].phys_cb = cfg->pp_phys_buf + daon + TRY * one_p_size;
-				cfg->img_buf[i].virt_cr = cfg->pp_virt_buf + daon + c_size + TRY * one_p_size;
-				cfg->img_buf[i].phys_cr = cfg->pp_phys_buf + daon + c_size + TRY * one_p_size;
-				CICOYSA(i)  = cfg->img_buf[i].phys_y;
-				CICOCBSA(i) = cfg->img_buf[i].phys_cb;
-				CICOCRSA(i) = cfg->img_buf[i].phys_cr;
-			}
-			break;
-		case 4: 
-			one_p_size = daon + 2*c_size;
-			for (i = 0; i < 4 ; i++) {
-				cfg->img_buf[i].virt_y = cfg->pp_virt_buf + i * one_p_size;
-				cfg->img_buf[i].phys_y = cfg->pp_phys_buf + i * one_p_size;
-				cfg->img_buf[i].virt_cb = cfg->pp_virt_buf + daon + i * one_p_size;
-				cfg->img_buf[i].phys_cb = cfg->pp_phys_buf + daon + i * one_p_size;
-				cfg->img_buf[i].virt_cr = cfg->pp_virt_buf + daon + c_size + i * one_p_size;
-				cfg->img_buf[i].phys_cr = cfg->pp_phys_buf + daon + c_size + i * one_p_size;
-				CICOYSA(i)  =  cfg->img_buf[i].phys_y;
-				CICOCBSA(i) =  cfg->img_buf[i].phys_cb;
-				CICOCRSA(i) =  cfg->img_buf[i].phys_cr;
-			}
-			break;
-		default:
-			printk("Invalid PingPong Number %d \n",cfg->pp_num);
-			panic("halt\n");
-	}
+		one_p_size = daon + 2*c_size;
+		for (i = 0; i < 4  ; i++) {
+			cfg->img_buf[i].virt_y = cfg->pp_virt_buf + TRY * one_p_size;
+			cfg->img_buf[i].phys_y = cfg->pp_phys_buf + TRY * one_p_size;
+			cfg->img_buf[i].virt_cb = cfg->pp_virt_buf + daon + TRY * one_p_size;
+			cfg->img_buf[i].phys_cb = cfg->pp_phys_buf + daon + TRY * one_p_size;
+			cfg->img_buf[i].virt_cr = cfg->pp_virt_buf + daon + c_size + TRY * one_p_size;
+			cfg->img_buf[i].phys_cr = cfg->pp_phys_buf + daon + c_size + TRY * one_p_size;
+			writel(cfg->img_buf[i].phys_y, camregs + S3C2440_CAM_REG_CICOYSA(i));
+			writel(cfg->img_buf[i].phys_cb, camregs + S3C2440_CAM_REG_CICOCBSA(i));
+			writel(cfg->img_buf[i].phys_cr, camregs + S3C2440_CAM_REG_CICOCRSA(i));
+		}
+		break;
+	case 4:
+		one_p_size = daon + 2*c_size;
+		for (i = 0; i < 4 ; i++) {
+			cfg->img_buf[i].virt_y = cfg->pp_virt_buf + i * one_p_size;
+			cfg->img_buf[i].phys_y = cfg->pp_phys_buf + i * one_p_size;
+			cfg->img_buf[i].virt_cb = cfg->pp_virt_buf + daon + i * one_p_size;
+			cfg->img_buf[i].phys_cb = cfg->pp_phys_buf + daon + i * one_p_size;
+			cfg->img_buf[i].virt_cr = cfg->pp_virt_buf + daon + c_size + i * one_p_size;
+			cfg->img_buf[i].phys_cr = cfg->pp_phys_buf + daon + c_size + i * one_p_size;
+			writel(cfg->img_buf[i].phys_y, camregs + S3C2440_CAM_REG_CICOYSA(i));
+			writel(cfg->img_buf[i].phys_cb, camregs + S3C2440_CAM_REG_CICOCBSA(i));
+			writel(cfg->img_buf[i].phys_cr, camregs + S3C2440_CAM_REG_CICOCRSA(i));
+		}
+		break;
+	default:
+		printk("Invalid PingPong Number %d \n",cfg->pp_num);
+		panic("halt\n");
+}
 	return 0;
 }
 
@@ -222,21 +225,21 @@ static int camif_pp_preview(camif_cfg_t *cfg)
 			for ( i = 0; i < 4 ; i++ ) {
 				cfg->img_buf[i].virt_rgb = cfg->pp_virt_buf ;
 				cfg->img_buf[i].phys_rgb = cfg->pp_phys_buf ;
-				CIPRCLRSA(i) = cfg->img_buf[i].phys_rgb;
+				writel(cfg->img_buf[i].phys_rgb, camregs + S3C2440_CAM_REG_CICOCRSA(i));
 			}
 			break;
 		case 2:
 			for ( i = 0; i < 4 ; i++) {
 				cfg->img_buf[i].virt_rgb = cfg->pp_virt_buf + TRY * daon;
 				cfg->img_buf[i].phys_rgb = cfg->pp_phys_buf + TRY * daon;
-				CIPRCLRSA(i) = cfg->img_buf[i].phys_rgb;
+				writel(cfg->img_buf[i].phys_rgb, camregs + S3C2440_CAM_REG_CICOCRSA(i));
 			}
 			break;
 		case 4:
 			for ( i = 0; i < 4 ; i++) {
 				cfg->img_buf[i].virt_rgb = cfg->pp_virt_buf + i * daon;
 				cfg->img_buf[i].phys_rgb = cfg->pp_phys_buf + i * daon;
-				CIPRCLRSA(i) = cfg->img_buf[i].phys_rgb;
+				writel(cfg->img_buf[i].phys_rgb, camregs + S3C2440_CAM_REG_CICOCRSA(i));
 			}
 			break;
 		default:
@@ -308,7 +311,7 @@ static int camif_source_fmt(camif_gc_t *gc)
 	cmd  |= SOURCE_HSIZE(gc->source_x)| SOURCE_VSIZE(gc->source_y);
 	/* Order422 */
 	cmd |=  gc->order422;
-	CISRCFMT = cmd;
+	writel(cmd, camregs + S3C2440_CAM_REG_CISRCFMT);
 
 	return 0 ;
 }
@@ -331,33 +334,24 @@ static int camif_target_fmt(camif_cfg_t *cfg)
 			assert(cfg->fmt & CAMIF_OUT_YCBCR422);
 			cmd |= OUT_YCBCR422|IN_YCBCR422;
 		}
-		CICOTRGFMT = cmd | cfg->flip;
-	} 
-	else {
+		writel(cmd | cfg->flip, camregs + S3C2440_CAM_REG_CICOTRGFMT);
+
+	} else {
 		assert(cfg->dma_type & CAMIF_PREVIEW);
-		CIPRTRGFMT = 
-			TARGET_HSIZE(cfg->target_x)|TARGET_VSIZE(cfg->target_y)|cfg->flip;
+		writel(TARGET_HSIZE(cfg->target_x)|TARGET_VSIZE(cfg->target_y)|cfg->flip,
+			camregs + S3C2440_CAM_REG_CIPRTRGFMT); 
 	}
 	return 0;
 }
 
 void camif_change_flip(camif_cfg_t *cfg)
 {
-	u32 cmd = 0;
+	u32 cmd = readl(camregs + S3C2440_CAM_REG_CICOTRGFMT);
 
-	if (cfg->dma_type & CAMIF_CODEC ) {
-		/* YCBCR setting */  
-		cmd  = CICOTRGFMT;
-		cmd &= ~(BIT14|BIT15); /* Clear FLIP Mode */
-		cmd |= cfg->flip; 
-		CICOTRGFMT = cmd;
-	} 
-	else {
-		cmd  = CIPRTRGFMT;
-		cmd &= ~(BIT14|BIT15);
-		cmd |= cfg->flip;
-		CICOTRGFMT = cmd; 
-	}
+	cmd &= ~(BIT14|BIT15);
+	cmd |= cfg->flip;
+
+	writel(cmd, camregs + S3C2440_CAM_REG_CICOTRGFMT);
 }
 
 
@@ -373,70 +367,81 @@ int camif_capture_start(camif_cfg_t *cfg)
 	u32 n_cmd = 0;		/* Next Command */
 
 	switch(cfg->exec) {
-		case CAMIF_BOTH_DMA_ON:
-			camif_reset(CAMIF_RESET,0); /* Flush Camera Core Buffer */		
-			CIPRSCCTRL |= SCALERSTART;
-			CICOSCCTRL |= SCALERSTART;
-			n_cmd = CAMIF_CAP_PREVIEW_ON|CAMIF_CAP_CODEC_ON;
-			break;
-		case CAMIF_DMA_ON:
-			camif_reset(CAMIF_RESET,0); /* Flush Camera Core Buffer */		
-			if (cfg->dma_type&CAMIF_CODEC) {
-				CICOSCCTRL |= SCALERSTART;
-				n_cmd = CAMIF_CAP_CODEC_ON;
-			}else {
-				CIPRSCCTRL |= SCALERSTART;
-				n_cmd = CAMIF_CAP_PREVIEW_ON;
-			}
+	case CAMIF_BOTH_DMA_ON:
+		camif_reset(CAMIF_RESET, 0); /* Flush Camera Core Buffer */
+		writel(readl(camregs + S3C2440_CAM_REG_CIPRSCCTRL) |
+			     SCALERSTART, camregs + S3C2440_CAM_REG_CIPRSCCTRL);
+		writel(readl(camregs + S3C2440_CAM_REG_CICOSCCTRL) |
+			     SCALERSTART, camregs + S3C2440_CAM_REG_CICOSCCTRL);
+		n_cmd = CAMIF_CAP_PREVIEW_ON | CAMIF_CAP_CODEC_ON;
+		break;
+	case CAMIF_DMA_ON:
+		camif_reset(CAMIF_RESET, 0); /* Flush Camera Core Buffer */
+		if (cfg->dma_type&CAMIF_CODEC) {
+			writel(readl(camregs + S3C2440_CAM_REG_CICOSCCTRL) |
+			     SCALERSTART, camregs + S3C2440_CAM_REG_CICOSCCTRL);
+			n_cmd = CAMIF_CAP_CODEC_ON;
+		} else {
+			writel(readl(camregs + S3C2440_CAM_REG_CIPRSCCTRL) |
+			     SCALERSTART, camregs + S3C2440_CAM_REG_CIPRSCCTRL);
+			n_cmd = CAMIF_CAP_PREVIEW_ON;
+		}
 
-			/* wait until Sync Time expires */
-			/* First settting, to wait VSYNC fall  */
-			/* By VESA spec,in 640x480 @60Hz 
-			   MAX Delay Time is around 64us which "while" has.*/ 
-			while(VSYNC & CICOSTATUS);
-			break;
-		default:
-			break;
-	}
-	CIIMGCPT = n_cmd|CAMIF_CAP_ON;
+		/* wait until Sync Time expires */
+		/* First settting, to wait VSYNC fall  */
+		/* By VESA spec,in 640x480 @60Hz
+			MAX Delay Time is around 64us which "while" has.*/
+		while(VSYNC & readl(camregs + S3C2440_CAM_REG_CICOSTATUS));
+		break;
+	default:
+		break;
+}
+	writel(n_cmd | CAMIF_CAP_ON, camregs + S3C2440_CAM_REG_CIIMGCPT); 
 	return 0;
 }
 
 
 int camif_capture_stop(camif_cfg_t *cfg)
 {
-	u32 n_cmd = CIIMGCPT;	/* Next Command */
+	u32 n_cmd = readl(camregs + S3C2440_CAM_REG_CIIMGCPT);	/* Next Command */
 
 	switch(cfg->exec) {
-		case CAMIF_BOTH_DMA_OFF:
-			CIPRSCCTRL &= ~SCALERSTART;
-			CICOSCCTRL &= ~SCALERSTART;
-			n_cmd = 0;
-			break;
-		case CAMIF_DMA_OFF_L_IRQ: /* fall thru */
-		case CAMIF_DMA_OFF:
-			if (cfg->dma_type&CAMIF_CODEC) {
-				CICOSCCTRL &= ~SCALERSTART;
-				n_cmd &= ~CAMIF_CAP_CODEC_ON;
-				if (!(n_cmd & CAMIF_CAP_PREVIEW_ON))
-					n_cmd = 0;
-			}else {
-				CIPRSCCTRL &= ~SCALERSTART;
-				n_cmd &= ~CAMIF_CAP_PREVIEW_ON;
-				if (!(n_cmd & CAMIF_CAP_CODEC_ON))
-					n_cmd = 0;
-			}
-			break;
-		default:
-			panic("Unexpected \n");
-	}
-	CIIMGCPT = n_cmd;
-	if(cfg->exec == CAMIF_DMA_OFF_L_IRQ) { /* Last IRQ  */
-		if (cfg->dma_type & CAMIF_CODEC) 
-			CICOCTRL |= LAST_IRQ_EN;
-		else 
-			CIPRCTRL |= LAST_IRQ_EN;
-	} 
+	case CAMIF_BOTH_DMA_OFF:
+		writel(readl(camregs + S3C2440_CAM_REG_CIPRSCCTRL) &
+			~SCALERSTART, camregs + S3C2440_CAM_REG_CIPRSCCTRL);
+		writel(readl(camregs + S3C2440_CAM_REG_CICOSCCTRL) &
+			~SCALERSTART, camregs + S3C2440_CAM_REG_CICOSCCTRL);
+		n_cmd = 0;
+		break;
+	case CAMIF_DMA_OFF_L_IRQ: /* fall thru */
+	case CAMIF_DMA_OFF:
+		if (cfg->dma_type&CAMIF_CODEC) {
+			writel(readl(camregs + S3C2440_CAM_REG_CICOSCCTRL) &
+			    ~SCALERSTART, camregs + S3C2440_CAM_REG_CICOSCCTRL);
+			n_cmd &= ~CAMIF_CAP_CODEC_ON;
+			if (!(n_cmd & CAMIF_CAP_PREVIEW_ON))
+				n_cmd = 0;
+		} else {
+			writel(readl(camregs + S3C2440_CAM_REG_CIPRSCCTRL) &
+			    ~SCALERSTART, camregs + S3C2440_CAM_REG_CIPRSCCTRL);
+			n_cmd &= ~CAMIF_CAP_PREVIEW_ON;
+			if (!(n_cmd & CAMIF_CAP_CODEC_ON))
+				n_cmd = 0;
+		}
+		break;
+	default:
+		panic("Unexpected \n");
+	}
+	writel(n_cmd, camregs + S3C2440_CAM_REG_CIIMGCPT);
+
+	if (cfg->exec == CAMIF_DMA_OFF_L_IRQ) { /* Last IRQ  */
+		if (cfg->dma_type & CAMIF_CODEC)
+			writel(readl(camregs + S3C2440_CAM_REG_CICOCTRL) |
+			     LAST_IRQ_EN, camregs + S3C2440_CAM_REG_CICOCTRL);
+		else
+			writel(readl(camregs + S3C2440_CAM_REG_CIPRCTRL) |
+			     LAST_IRQ_EN, camregs + S3C2440_CAM_REG_CIPRCTRL);
+	}
 #if 0
 	else {				/* to make internal state machine of CAMERA stop */
 		camif_reset(CAMIF_RESET, 0);
@@ -449,16 +454,13 @@ int camif_capture_stop(camif_cfg_t *cfg)
 /* LastIRQEn is autoclear */
 void camif_last_irq_en(camif_cfg_t *cfg)
 {
-	if(cfg->exec == CAMIF_BOTH_DMA_ON) {
-		CIPRCTRL |= LAST_IRQ_EN;
-		CICOCTRL |= LAST_IRQ_EN;
-	}
-	else {
-		if (cfg->dma_type & CAMIF_CODEC) 
-			CICOCTRL |= LAST_IRQ_EN;
-		else 
-			CIPRCTRL |= LAST_IRQ_EN;
-	}
+	if ((cfg->exec == CAMIF_BOTH_DMA_ON) || (cfg->dma_type & CAMIF_CODEC))
+		writel(readl(camregs + S3C2440_CAM_REG_CICOCTRL) |
+			LAST_IRQ_EN, camregs + S3C2440_CAM_REG_CICOCTRL);
+
+	if ((cfg->exec == CAMIF_BOTH_DMA_ON) || !(cfg->dma_type & CAMIF_CODEC))
+		writel(readl(camregs + S3C2440_CAM_REG_CIPRCTRL) |
+			LAST_IRQ_EN, camregs + S3C2440_CAM_REG_CIPRCTRL);
 }
 
 static int  
@@ -502,23 +504,33 @@ int camif_g_fifo_status(camif_cfg_t *cfg)
 	u32 reg;
 
 	if (cfg->dma_type & CAMIF_CODEC) {
-		u32 flag = CO_OVERFLOW_Y|CO_OVERFLOW_CB|CO_OVERFLOW_CR;
-		reg = CICOSTATUS;
+		u32 flag = CO_OVERFLOW_Y | CO_OVERFLOW_CB | CO_OVERFLOW_CR;
+		reg = readl(camregs + S3C2440_CAM_REG_CICOSTATUS);
 		if (reg & flag) {
 			printk("CODEC: FIFO error(0x%08x) and corrected\n",reg);
 			/* FIFO Error Count ++  */
-			CIWDOFST |= CO_FIFO_Y|CO_FIFO_CB|CO_FIFO_CR;
-			CIWDOFST &= ~(CO_FIFO_Y|CO_FIFO_CB|CO_FIFO_CR);
+			writel(readl(camregs + S3C2440_CAM_REG_CIWDOFST) |
+				CO_FIFO_Y | CO_FIFO_CB | CO_FIFO_CR,
+				camregs + S3C2440_CAM_REG_CIWDOFST);
+
+			writel(readl(camregs + S3C2440_CAM_REG_CIWDOFST) &
+				~(CO_FIFO_Y | CO_FIFO_CB | CO_FIFO_CR),
+				camregs + S3C2440_CAM_REG_CIWDOFST);
 			return 1; /* Error */
 		}
 	}
 	if (cfg->dma_type & CAMIF_PREVIEW) {
-		u32 flag = PR_OVERFLOW_CB|PR_OVERFLOW_CR;
-		reg = CIPRSTATUS;
+		u32 flag = PR_OVERFLOW_CB | PR_OVERFLOW_CR;
+		reg = readl(camregs + S3C2440_CAM_REG_CIPRSTATUS);
 		if (reg & flag) {
 			printk("PREVIEW:FIFO error(0x%08x) and corrected\n",reg);
-			CIWDOFST |= PR_FIFO_CB|PR_FIFO_CR;
-			CIWDOFST &= ~(CO_FIFO_Y|CO_FIFO_CB|CO_FIFO_CR);
+			writel(readl(camregs + S3C2440_CAM_REG_CIWDOFST) |
+				CO_FIFO_CB | CO_FIFO_CR,
+				camregs + S3C2440_CAM_REG_CIWDOFST);
+
+			writel(readl(camregs + S3C2440_CAM_REG_CIWDOFST) &
+				~(CO_FIFO_Y | CO_FIFO_CB | CO_FIFO_CR),
+				camregs + S3C2440_CAM_REG_CIWDOFST);
 			/* FIFO Error Count ++  */
 			return 1; /* Error */
 		}
@@ -537,13 +549,16 @@ int camif_win_offset(camif_gc_t *gc )
 	u32 v = gc->win_ver_ofst;
 
 	/*Clear Overflow */
-	CIWDOFST = CO_FIFO_Y|CO_FIFO_CB|CO_FIFO_CR|PR_FIFO_CB|PR_FIFO_CB;
-	CIWDOFST = 0;		/* ? Dummy */
+	writel(CO_FIFO_Y | CO_FIFO_CB | CO_FIFO_CR | PR_FIFO_CB | PR_FIFO_CB,
+		camregs + S3C2440_CAM_REG_CIWDOFST);
+	writel(0, camregs + S3C2440_CAM_REG_CIWDOFST);
+
 	if (!h && !v)	{
-		CIWDOFST = 0;
+		writel(0, camregs + S3C2440_CAM_REG_CIWDOFST);
 		return 0;
 	}
-	CIWDOFST = WINOFEN | WINHOROFST(h) | WINVEROFST(v);
+
+	writel(WINOFEN | WINHOROFST(h) | WINVEROFST(v), camregs + S3C2440_CAM_REG_CIWDOFST);
 	return 0;
 }
 
@@ -554,7 +569,7 @@ int camif_win_offset(camif_gc_t *gc )
  */
 static void camif_polarity(camif_gc_t *gc)
 {
-	u32 cmd = CIGCTRL;
+	u32 cmd = readl(camregs + S3C2440_CAM_REG_CIGCTRL);;
 	
 	cmd = cmd & ~(BIT26|BIT25|BIT24); /* clear polarity */
 	if (gc->polarity_pclk)
@@ -563,7 +578,8 @@ static void camif_polarity(camif_gc_t *gc)
 		cmd |= GC_INVPOLVSYNC;
 	if (gc->polarity_href)
 		cmd |= GC_INVPOLHREF;
-	CIGCTRL |= cmd;
+	writel(readl(camregs + S3C2440_CAM_REG_CIGCTRL) |
+	       cmd, camregs + S3C2440_CAM_REG_CIGCTRL);
 }
 
 
@@ -599,12 +615,13 @@ int camif_dynamic_close(camif_cfg_t *cfg)
 static int camif_target_area(camif_cfg_t *cfg) 
 {
 	u32 rect = cfg->target_x * cfg->target_y;
-	if (cfg->dma_type & CAMIF_CODEC ) {
-		CICOTAREA = rect;
-	}
-	if (cfg->dma_type & CAMIF_PREVIEW) {
-		CIPRTAREA = rect;
-	}
+
+	if (cfg->dma_type & CAMIF_CODEC)
+		writel(rect, camregs + S3C2440_CAM_REG_CICOTAREA);
+
+	if (cfg->dma_type & CAMIF_PREVIEW)
+		writel(rect, camregs + S3C2440_CAM_REG_CIPRTAREA);
+
 	return 0;
 }
 
@@ -613,40 +630,44 @@ static int inline camif_hw_reg(camif_cfg_t *cfg)
 	u32 cmd = 0;
 
 	if (cfg->dma_type & CAMIF_CODEC) {
-		CICOSCPRERATIO = PRE_SHIFT(cfg->sc.shfactor)
-			|PRE_HRATIO(cfg->sc.prehratio)|PRE_VRATIO(cfg->sc.prevratio);
-		CICOSCPREDST = 
-			PRE_DST_WIDTH(cfg->sc.predst_x)|PRE_DST_HEIGHT(cfg->sc.predst_y);
+		writel(PRE_SHIFT(cfg->sc.shfactor) |
+		       PRE_HRATIO(cfg->sc.prehratio) |
+		       PRE_VRATIO(cfg->sc.prevratio),
+		       camregs + S3C2440_CAM_REG_CICOSCPRERATIO);
+		writel(PRE_DST_WIDTH(cfg->sc.predst_x) |
+		       PRE_DST_HEIGHT(cfg->sc.predst_y),
+		       camregs + S3C2440_CAM_REG_CICOSCPREDST);
 
 		/* Differ from Preview */
 		if (cfg->sc.scalerbypass)
 			cmd |= SCALERBYPASS;
 		if (cfg->sc.scaleup_h & cfg->sc.scaleup_v)
 			cmd |= BIT30|BIT29;
-		CICOSCCTRL = cmd | MAIN_HRATIO(cfg->sc.mainhratio)
-			|MAIN_VRATIO(cfg->sc.mainvratio);
+		writel(cmd | MAIN_HRATIO(cfg->sc.mainhratio) |
+		       MAIN_VRATIO(cfg->sc.mainvratio),
+		       camregs + S3C2440_CAM_REG_CICOSCCTRL);
 		return 0;
 	}
-	else if (cfg->dma_type & CAMIF_PREVIEW) {
-		CIPRSCPRERATIO = PRE_SHIFT(cfg->sc.shfactor)
-			|PRE_HRATIO(cfg->sc.prehratio)|PRE_VRATIO(cfg->sc.prevratio);
-		CIPRSCPREDST = 
-			PRE_DST_WIDTH(cfg->sc.predst_x)|PRE_DST_HEIGHT(cfg->sc.predst_y);
+	if (cfg->dma_type & CAMIF_PREVIEW) {
+		writel(PRE_SHIFT(cfg->sc.shfactor) |
+		       PRE_HRATIO(cfg->sc.prehratio) |
+		       PRE_VRATIO(cfg->sc.prevratio),
+		       camregs + S3C2440_CAM_REG_CIPRSCPRERATIO);
+		writel(PRE_DST_WIDTH(cfg->sc.predst_x) |
+		       PRE_DST_HEIGHT(cfg->sc.predst_y),
+		       camregs + S3C2440_CAM_REG_CIPRSCPREDST);
 		/* Differ from Codec */
-		if (cfg->fmt & CAMIF_RGB24) {
+		if (cfg->fmt & CAMIF_RGB24)
 			cmd |= RGB_FMT24;  
-		}
-		else {
-			/* RGB16 */;
-		}		
 		if (cfg->sc.scaleup_h & cfg->sc.scaleup_v)
-			cmd |= BIT29|BIT28;
-		CIPRSCCTRL = cmd |MAIN_HRATIO(cfg->sc.mainhratio)|S_METHOD
-			|MAIN_VRATIO(cfg->sc.mainvratio);
-	}else {
-		panic("CAMERA:DMA_TYPE Wrong \n");
+			cmd |= BIT29 | BIT28;
+		writel(cmd | MAIN_HRATIO(cfg->sc.mainhratio) | S_METHOD |
+		       MAIN_VRATIO(cfg->sc.mainvratio),
+		       camregs + S3C2440_CAM_REG_CIPRSCCTRL);
+		return 0;
 	}
 
+	panic("CAMERA:DMA_TYPE Wrong \n");
 	return 0;
 }
 
@@ -654,46 +675,50 @@ static int inline camif_hw_reg(camif_cfg_t *cfg)
 /* Configure Pre-scaler control  & main scaler control register */
 static int camif_scaler(camif_cfg_t *cfg)
 {
-	int tx = cfg->target_x,ty=cfg->target_y;
+	int tx = cfg->target_x, ty = cfg->target_y;
 	int sx, sy;
 
-	if (tx <= 0 || ty<= 0) 	panic("CAMERA: Invalid target size \n");
+	if (tx <= 0 || ty <= 0)
+		panic("CAMERA: Invalid target size \n");
+
+	sx = cfg->gc->source_x - 2 * cfg->gc->win_hor_ofst;
+	sy = cfg->gc->source_y - 2 * cfg->gc->win_ver_ofst;	
+	if (sx <= 0 || sy <= 0)
+		panic("CAMERA: Invalid source size \n");
 
-	sx = cfg->gc->source_x - 2*cfg->gc->win_hor_ofst;
-	sy = cfg->gc->source_y - 2*cfg->gc->win_ver_ofst;	
-	if (sx <= 0 || sy<= 0) 	panic("CAMERA: Invalid source size \n");
 	cfg->sc.modified_src_x = sx;
 	cfg->sc.modified_src_y = sy;
 
 	/* Pre-scaler control register 1 */
-	camif_scaler_internal(sx,tx,&cfg->sc.prehratio,&cfg->sc.hfactor);
-	camif_scaler_internal(sy,ty,&cfg->sc.prevratio,&cfg->sc.vfactor);
+	camif_scaler_internal(sx, tx, &cfg->sc.prehratio, &cfg->sc.hfactor);
+	camif_scaler_internal(sy, ty, &cfg->sc.prevratio, &cfg->sc.vfactor);
 
-	if (cfg->dma_type & CAMIF_PREVIEW) {
-		if ( (sx /cfg->sc.prehratio) <= 640 ) {}
-		else {
-			printk(KERN_INFO "CAMERA: Internal Preview line buffer is 640 pixels\n");
+	if (cfg->dma_type & CAMIF_PREVIEW)
+		if ((sx / cfg->sc.prehratio) > 640) {
+			printk(KERN_INFO "CAMERA: Internal Preview line "
+					 "buffer is 640 pixels\n");
 			return 1; /* Error */
 		}
-	}
 
-	cfg->sc.shfactor = 10-(cfg->sc.hfactor+cfg->sc.vfactor);
+	cfg->sc.shfactor = 10 - (cfg->sc.hfactor + cfg->sc.vfactor);
 	/* Pre-scaler control register 2 */
 	cfg->sc.predst_x = sx / cfg->sc.prehratio;
 	cfg->sc.predst_y = sy / cfg->sc.prevratio;
 
 	/* Main-scaler control register */
-	cfg->sc.mainhratio = (sx << 8)/(tx << cfg->sc.hfactor);
-	cfg->sc.mainvratio = (sy << 8)/(ty << cfg->sc.vfactor);
-	DPRINTK(" sx %d, sy %d tx %d ty %d  \n",sx,sy,tx,ty);
-	DPRINTK(" hfactor %d  vfactor %d \n",cfg->sc.hfactor,cfg->sc.vfactor);
+	cfg->sc.mainhratio = (sx << 8) / (tx << cfg->sc.hfactor);
+	cfg->sc.mainvratio = (sy << 8) / (ty << cfg->sc.vfactor);
+	DPRINTK(" sx %d, sy %d tx %d ty %d  \n", sx, sy, tx, ty);
+	DPRINTK(" hfactor %d  vfactor %d \n",cfg->sc.hfactor, cfg->sc.vfactor);
 
 	cfg->sc.scaleup_h  = (sx <= tx) ? 1: 0;
 	cfg->sc.scaleup_v  = (sy <= ty) ? 1: 0;
-	if ( cfg->sc.scaleup_h != cfg->sc.scaleup_v) 
+	if (cfg->sc.scaleup_h != cfg->sc.scaleup_v)
 		printk(KERN_ERR "scaleup_h must be same to scaleup_v \n");
+
 	camif_hw_reg(cfg);
 	camif_target_area(cfg);
+
 	return 0;
 }
 
@@ -706,38 +731,38 @@ static void camif_g_bsize(u32 hsize, u32 *mburst, u32 *rburst)
 {
 	u32 tmp;
 
-	tmp = (hsize/4) % 16;
+	tmp = (hsize / 4) % 16;
 	switch(tmp) {
+	case 0:
+		*mburst=16;
+		*rburst=16;
+		break;
+	case 4:
+		*mburst=16;
+		*rburst=4;
+		break;
+	case 8:
+		*mburst=16;
+		*rburst=8;
+		break;
+	default:
+		tmp=(hsize / 4) % 8;
+		switch(tmp) {
 		case 0:
-			*mburst=16;
-			*rburst=16;
+			*mburst = 8;
+			*rburst = 8;
 			break;
 		case 4:
-			*mburst=16;
-			*rburst=4;
-			break;
-		case 8:
-			*mburst=16;
-			*rburst=8;
-			break;
+			*mburst = 8;
+			*rburst = 4;
 		default:
-			tmp=(hsize/4)%8;
-			switch(tmp) {
-				case 0:
-					*mburst=8;
-					*rburst=8;
-					break;
-				case 4:
-					*mburst=8;
-					*rburst=4;
-				default:
-					*mburst=4;
-					tmp=(hsize/4)%4;
-					*rburst= (tmp) ? tmp: 4;
-					break;
-			}
+			*mburst = 4;
+			tmp = (hsize / 4) % 4;
+			*rburst= (tmp) ? tmp: 4;
 			break;
 	}
+		break;
+	}
 }
 
 /* SXGA 1028x1024*/
@@ -759,24 +784,30 @@ static int camif_dma_burst(camif_cfg_t *cfg)
 		u32 yburst_m, yburst_r;
 		u32 cburst_m, cburst_r;
 		/* CODEC DMA WIDHT is multiple of 16 */
-		if (width %16 != 0 )  return BURST_ERR;   /* DMA Burst Length Error */
-		camif_g_bsize(width,&yburst_m,&yburst_r);
-		camif_g_bsize(width/2,&cburst_m,&cburst_r);
-		CICOCTRL =YBURST_M(yburst_m)|CBURST_M(cburst_m)
-			|YBURST_R(yburst_r)|CBURST_R(cburst_r);
+		if (width % 16)
+			return BURST_ERR;   /* DMA Burst Length Error */
+		camif_g_bsize(width, &yburst_m, &yburst_r);
+		camif_g_bsize(width / 2, &cburst_m, &cburst_r);
+
+		writel(YBURST_M(yburst_m) | CBURST_M(cburst_m) |
+		       YBURST_R(yburst_r) | CBURST_R(cburst_r),
+		       camregs + S3C2440_CAM_REG_CICOCTRL);
 	}
 
 	if (cfg->dma_type & CAMIF_PREVIEW) {
 		u32 rgburst_m, rgburst_r;
 		if(cfg->fmt == CAMIF_RGB24) {
-			if (width %2 != 0 )  return BURST_ERR;   /* DMA Burst Length Error */
+			if (width % 2)
+				return BURST_ERR;   /* DMA Burst Length Error */
 			camif_g_bsize(width*4,&rgburst_m,&rgburst_r);
-		}
-		else {		/* CAMIF_RGB16 */
-			if ((width/2) %2 != 0 )  return BURST_ERR; /* DMA Burst Length Error */
+		} else {		/* CAMIF_RGB16 */
+			if ((width / 2) %2)
+				return BURST_ERR; /* DMA Burst Length Error */
 			camif_g_bsize(width*2,&rgburst_m,&rgburst_r);  
 		}
-			CIPRCTRL = RGBURST_M(rgburst_m) | RGBURST_R(rgburst_r);
+
+		writel(RGBURST_M(rgburst_m) | RGBURST_R(rgburst_r),
+		       camregs + S3C2440_CAM_REG_CIPRCTRL);
 	}
 	return 0;
 }
@@ -786,19 +817,20 @@ static int camif_gpio_init(void)
 #ifdef CONFIG_ARCH_S3C24A0A
 	/* S3C24A0A has the dedicated signal pins for Camera */
 #else
-	set_gpio_ctrl(GPIO_CAMDATA0);
-	set_gpio_ctrl(GPIO_CAMDATA1);
-	set_gpio_ctrl(GPIO_CAMDATA2);
-	set_gpio_ctrl(GPIO_CAMDATA3);
-	set_gpio_ctrl(GPIO_CAMDATA4);
-	set_gpio_ctrl(GPIO_CAMDATA5);
-	set_gpio_ctrl(GPIO_CAMDATA6);
-	set_gpio_ctrl(GPIO_CAMDATA7);
-	set_gpio_ctrl(GPIO_CAMPCLKIN);
-	set_gpio_ctrl(GPIO_CAMVSYNC);
-	set_gpio_ctrl(GPIO_CAMHREF);
-	set_gpio_ctrl(GPIO_CAMPCLKOUT);
-	set_gpio_ctrl(GPIO_CAMRESET);
+	s3c2410_gpio_cfgpin(S3C2440_GPJ0, S3C2440_GPJ0_CAMDATA0);
+	s3c2410_gpio_cfgpin(S3C2440_GPJ1, S3C2440_GPJ1_CAMDATA1);
+	s3c2410_gpio_cfgpin(S3C2440_GPJ2, S3C2440_GPJ2_CAMDATA2);
+	s3c2410_gpio_cfgpin(S3C2440_GPJ3, S3C2440_GPJ3_CAMDATA3);
+	s3c2410_gpio_cfgpin(S3C2440_GPJ4, S3C2440_GPJ4_CAMDATA4);
+	s3c2410_gpio_cfgpin(S3C2440_GPJ5, S3C2440_GPJ5_CAMDATA5);
+	s3c2410_gpio_cfgpin(S3C2440_GPJ6, S3C2440_GPJ6_CAMDATA6);
+	s3c2410_gpio_cfgpin(S3C2440_GPJ7, S3C2440_GPJ7_CAMDATA7);
+
+	s3c2410_gpio_cfgpin(S3C2440_GPJ8, S3C2440_GPJ8_CAMPCLK);
+	s3c2410_gpio_cfgpin(S3C2440_GPJ9, S3C2440_GPJ9_CAMVSYNC);
+	s3c2410_gpio_cfgpin(S3C2440_GPJ10, S3C2440_GPJ10_CAMHREF);
+	s3c2410_gpio_cfgpin(S3C2440_GPJ11, S3C2440_GPJ11_CAMCLKOUT);
+	s3c2410_gpio_cfgpin(S3C2440_GPJ12, S3C2440_GPJ12_CAMRESET);
 #endif
         return 0;
 }
@@ -827,21 +859,33 @@ int camif_clock_init(camif_gc_t *gc)
 	camclk_div = (upll+ROUND_ADD) / camclk - 1;
 	CLKDIVN = (CLKDIVN & 0xFF) | CLKDIVN_CAM(camclk_div);
 	printk(KERN_INFO"CAMERA:upll %d MACRO 0x%08X CLKDIVN 0x%08X \n",
-				upll, CLKDIVN_CAM(camclk_div),CLKDIVN);
-	CIIMGCPT = 0;		/* Dummy ? */
+				upll, CLKDIVN_CAM(camclk_div), CLKDIVN);
+	writel(0, camregs + S3C2440_CAM_REG_CIIMGCPT);	/* Dummy ? */
+
 	return 0;
 }
 #else
 int camif_clock_init(camif_gc_t *gc)
 {
-	unsigned int upll, camclk_div, camclk;
-	if (!gc) camclk = 24000000;
-	else  {
+	unsigned int camclk;
+	struct clk *clk_camif = clk_get(NULL, "camif");
+	struct clk *clk_camif_upll = clk_get(NULL, "camif-upll");
+
+	if (!gc)
+		camclk = 24000000;
+	else {
 		camclk = gc->camclk;
 		if (camclk > 48000000)
 			printk(KERN_ERR "Wrong Camera Clock\n");
 	}
 
+	clk_set_rate(clk_camif, camclk);
+
+	clk_enable(clk_camif);
+	clk_enable(clk_camif_upll);
+	
+
+#if 0
 	CLKCON |= CLKCON_CAMIF;
 	upll = elfin_get_bus_clk(GET_UPLL);
 	printk(KERN_INFO "CAMERA:Default UPLL %08d and Assing 96Mhz to UPLL\n",upll);	
@@ -854,7 +898,9 @@ int camif_clock_init(camif_gc_t *gc)
 	camclk_div = (upll+ROUND_ADD) /(camclk * 2) -1;
 	CAMDIVN = CAMCLK_SET_DIV|(camclk_div&0xf);
 	printk(KERN_INFO "CAMERA:upll %08d  cam_clk %08d CAMDIVN 0x%08x \n",upll,camclk, CAMDIVN);
-	CIIMGCPT = 0;		/* Dummy ? */
+#endif
+	writel(0, camregs + S3C2440_CAM_REG_CIIMGCPT);	/* Dummy ? */
+
 	return 0;
 }
 #endif
@@ -867,23 +913,39 @@ void camif_reset(int is, int delay)
 {
 	switch (is) {
 		case CAMIF_RESET:
-			CIGCTRL |= GC_SWRST;
+			writel(readl(camregs + S3C2440_CAM_REG_CIGCTRL) |
+			       GC_SWRST,
+			       camregs + S3C2440_CAM_REG_CIGCTRL);
 			mdelay(1);
-			CIGCTRL &= ~GC_SWRST;
+			writel(readl(camregs + S3C2440_CAM_REG_CIGCTRL) &
+			       ~GC_SWRST,
+			       camregs + S3C2440_CAM_REG_CIGCTRL);
 			break;
 		case CAMIF_EX_RESET_AH: /*Active High */
-			CIGCTRL &= ~GC_CAMRST; 
+			writel(readl(camregs + S3C2440_CAM_REG_CIGCTRL) &
+			       ~GC_CAMRST,
+			       camregs + S3C2440_CAM_REG_CIGCTRL);
 			udelay(200);
-			CIGCTRL |= GC_CAMRST;
+			writel(readl(camregs + S3C2440_CAM_REG_CIGCTRL) |
+			       GC_CAMRST,
+			       camregs + S3C2440_CAM_REG_CIGCTRL);
 			udelay(delay);
-			CIGCTRL &= ~GC_CAMRST;
+			writel(readl(camregs + S3C2440_CAM_REG_CIGCTRL) &
+			       ~GC_CAMRST,
+			       camregs + S3C2440_CAM_REG_CIGCTRL);
 			break;
 		case CAMIF_EX_RESET_AL:	/*Active Low */
-			CIGCTRL |=  GC_CAMRST;
+			writel(readl(camregs + S3C2440_CAM_REG_CIGCTRL) |
+			       GC_CAMRST,
+			       camregs + S3C2440_CAM_REG_CIGCTRL);
 			udelay(200);
-			CIGCTRL &= ~GC_CAMRST;
+			writel(readl(camregs + S3C2440_CAM_REG_CIGCTRL) &
+			       ~GC_CAMRST,
+			       camregs + S3C2440_CAM_REG_CIGCTRL);
 			udelay(delay);
-			CIGCTRL |= GC_CAMRST;
+			writel(readl(camregs + S3C2440_CAM_REG_CIGCTRL) |
+			       GC_CAMRST,
+			       camregs + S3C2440_CAM_REG_CIGCTRL);
 			break;
 		default:
 			break;
@@ -908,10 +970,10 @@ static void camif_bus_priority(int flag)
 		PRIORITY1 = PRIORITY_I_FIX;
 
 #else
-		old_priority = PRIORITY;	
-		PRIORITY &= ~(3<<7);
-		PRIORITY |=  (1<<7); /* Arbiter 1, REQ2 first */
-		PRIORITY &= ~(1<<1); /* Disable Priority Rotate */
+		old_priority = readl(S3C2410_PRIORITY);
+		writel(readl(S3C2410_PRIORITY) & ~(3<<7), S3C2410_PRIORITY);
+		writel(readl(S3C2410_PRIORITY) |  (1<<7), S3C2410_PRIORITY); /* Arbiter 1, REQ2 first */
+		writel(readl(S3C2410_PRIORITY) & ~(1<<1), S3C2410_PRIORITY); /* Disable Priority Rotate */
 #endif
 	} 
 	else {
@@ -919,19 +981,26 @@ static void camif_bus_priority(int flag)
 		PRIORITY0 = old_priority;
 		PRIORITY1 = old_priority;
 #else
-		PRIORITY = old_priority;
+		writel(old_priority, S3C2410_PRIORITY);
 #endif
 	}
 }
 
 static void inline camif_clock_off(void)
 {
-	CIIMGCPT = 0;
 #if defined (CONFIG_ARCH_S3C24A0A)
+	writel(0, camregs + S3C2440_CAM_REG_CIIMGCPT);
+
 	CLKCON &= ~CLKCON_CAM_UPLL;
 	CLKCON &= ~CLKCON_CAM_HCLK;
 #else
-	CLKCON &= ~CLKCON_CAMIF;
+	struct clk *clk_camif = clk_get(NULL, "camif");
+	struct clk *clk_camif_upll = clk_get(NULL, "camif-upll");
+
+	writel(0, camregs + S3C2440_CAM_REG_CIIMGCPT);
+
+	clk_disable(clk_camif);
+	clk_disable(clk_camif_upll);
 #endif
 }
 
diff --git a/arch/arm/mach-s3c2440/camera/camif_fsm.c b/arch/arm/mach-s3c2440/camera/camif_fsm.c
index 3e2b71a..b534aca 100644
--- a/arch/arm/mach-s3c2440/camera/camif_fsm.c
+++ b/arch/arm/mach-s3c2440/camera/camif_fsm.c
@@ -31,7 +31,12 @@
 #include <asm/semaphore.h>
 #include <linux/miscdevice.h>
 
+#define CONFIG_VIDEO_V4L1_COMPAT
+#include <linux/videodev.h>
+#include "camif.h"
+
 //#define SW_DEBUG 
+static void camif_start_p_with_c(camif_cfg_t *cfg);
 
 #include "camif.h"
 const char *fsm_version =
diff --git a/arch/arm/mach-s3c2440/camera/imgsensor.c b/arch/arm/mach-s3c2440/camera/imgsensor.c
index 44b7bee..2099b69 100644
--- a/arch/arm/mach-s3c2440/camera/imgsensor.c
+++ b/arch/arm/mach-s3c2440/camera/imgsensor.c
@@ -11,7 +11,7 @@
  *  Driver for FIMC20 Camera Decoder 
  */
 
-#include <linux/config.h>
+
 #include <linux/module.h>
 #include <linux/kernel.h>
 #include <linux/init.h>
@@ -24,10 +24,12 @@
 
 #ifdef CONFIG_ARCH_S3C24A0A
 #else
-#include <asm/arch/S3C2440.h>
+//#include <asm/arch/S3C2440.h>
 #endif
 
 #define SW_DEBUG
+#define CONFIG_VIDEO_V4L1_COMPAT
+#include <linux/videodev.h>
 #include "camif.h"
 #include "sensor.h"
 
@@ -37,10 +39,6 @@
 #include "sxga.h"
 #endif
 
-static const char *sensor_version =
-        "$Id: imgsensor.c,v 1.11 2004/06/10 12:45:40 swlee Exp $";
-
-
 static struct i2c_driver s5x532_driver;
 static camif_gc_t data = {
 	itu_fmt:      CAMIF_ITU601,
@@ -69,22 +67,18 @@ static camif_gc_t data = {
 
 #define CAM_ID 0x5a
 
-static unsigned short ignore[] = { I2C_CLIENT_END };
+static unsigned short ignore = I2C_CLIENT_END;
 static unsigned short normal_addr[] = { (CAM_ID>>1), I2C_CLIENT_END };
 static struct i2c_client_address_data addr_data = {
 	normal_i2c:		normal_addr,
-	normal_i2c_range:	ignore,
-	probe:			ignore,
-	probe_range:		ignore,
-	ignore:			ignore,
-	ignore_range:		ignore,
-	force:			ignore,
+	probe:			&ignore,
+	ignore:			&ignore,
 };
 
 s5x532_t s5x532_regs_mirror[S5X532_REGS];
 
 unsigned char 
-s5x532_read(struct i2c_client *client,unsigned char subaddr)
+s5x532_read(struct i2c_client *client, unsigned char subaddr)
 {
 	int ret;
 	unsigned char buf[1];
@@ -151,7 +145,7 @@ void inline s5x532_init(struct i2c_client *sam_client)
 }
 
 static int
-s5x532_attach(struct i2c_adapter *adap, int addr, unsigned short flags,int kind)
+s5x532_attach(struct i2c_adapter *adap, int addr, int kind)
 {
 	struct i2c_client *c;
 
@@ -159,13 +153,13 @@ s5x532_attach(struct i2c_adapter *adap, int addr, unsigned short flags,int kind)
 	if (!c)	return -ENOMEM;
 
 	strcpy(c->name, "S5X532");
-	c->id		= s5x532_driver.id;
-	c->flags	= I2C_CLIENT_ALLOW_USE;
+//	c->id		= s5x532_driver.id;
+	c->flags	= 0 /* I2C_CLIENT_ALLOW_USE */;
 	c->addr		= addr;
 	c->adapter	= adap;
 	c->driver	= &s5x532_driver;
-	c->data		= &data;
-	data.sensor     = c; 
+	data.sensor     = c;
+	i2c_set_clientdata(c, &data);
 
 	camif_register_decoder(c);
 	return i2c_attach_client(c);
@@ -192,10 +186,10 @@ s5x532_command(struct i2c_client *client, unsigned int cmd, void *arg)
 		 printk(KERN_INFO "CAMERA: S5X532 Sensor initialized\n");
 		 break;
 	case USER_ADD:
-		MOD_INC_USE_COUNT;
+		/* MOD_INC_USE_COUNT; uh.. 2.6 deals with this, old-timer */
 		break;
 	case USER_EXIT:
-		MOD_DEC_USE_COUNT;
+		/* MOD_DEC_USE_COUNT; */
 		break;
 /* Todo
 	case SENSOR_BRIGHTNESS:
@@ -210,9 +204,8 @@ s5x532_command(struct i2c_client *client, unsigned int cmd, void *arg)
 }
 
 static struct i2c_driver s5x532_driver = {
-	name:		"S5X532",
-	id:		I2C_ALGO_S3C,
-	flags:		I2C_DF_NOTIFY,
+	driver:		{ name:		"S5X532" },
+	id:		0, /* optional in i2c-id.h I2C_ALGO_S3C, */
 	attach_adapter:	s5x532_probe,
 	detach_client:	s5x532_detach,
 	command:	s5x532_command
@@ -220,11 +213,13 @@ static struct i2c_driver s5x532_driver = {
 
 static void iic_gpio_port(void) 
 {
+/*    FIXME: no gpio config for i2c !!!
 #ifdef CONFIG_ARCH_S3C24A0A
 #else
 	GPECON &=  ~(0xf <<28);
 	GPECON |=    0xa <<28;
 #endif
+*/
 }
 
 static __init int camif_sensor_init(void)
diff --git a/arch/arm/mach-s3c2440/camera/qt-driver.c b/arch/arm/mach-s3c2440/camera/qt-driver.c
index 0c5dd40..cbf8565 100644
--- a/arch/arm/mach-s3c2440/camera/qt-driver.c
+++ b/arch/arm/mach-s3c2440/camera/qt-driver.c
@@ -31,12 +31,15 @@
                                                                                                            
 //#define SW_DEBUG
                                                                                                            
+#define CONFIG_VIDEO_V4L1_COMPAT
+#include <linux/videodev.h>
 #include "camif.h"
-#include "videodev.h"
 #include "miscdevice.h"
 #include "cam_reg.h"
 #include "sensor.h"
 #include "userapp.h"
+
+extern camif_cfg_t * get_camif(int nr);
                                                                                                            
 
 /************************* Sharp Zarus API **************************
diff --git a/arch/arm/mach-s3c2440/camera/video-driver.c b/arch/arm/mach-s3c2440/camera/video-driver.c
index fe9130c..9c77475 100644
--- a/arch/arm/mach-s3c2440/camera/video-driver.c
+++ b/arch/arm/mach-s3c2440/camera/video-driver.c
@@ -29,11 +29,12 @@
 #include <asm/irq.h>
 #include <asm/semaphore.h>
 #include <linux/miscdevice.h>
+#include <asm/arch/irqs.h>
 
 //#define SW_DEBUG 
-
+#define CONFIG_VIDEO_V4L1_COMPAT
+#include <linux/videodev.h>
 #include "camif.h"
-#include "videodev.h"
 #include "miscdevice.h"
 #include "cam_reg.h"
 #include "sensor.h"
@@ -46,12 +47,14 @@
 /* Codec and Preview */
 #define CAMIF_NUM  2
 static camif_cfg_t  fimc[CAMIF_NUM];
+u32 *camregs;
 
 static const char *driver_version = 
 	"$Id: video-driver.c,v 1.9 2004/06/02 03:10:36 swlee Exp $";
 extern const char *fimc_version;
 extern const char *fsm_version;
 
+extern void camif_start_c_with_p (camif_cfg_t *cfg, camif_cfg_t *other);
 
 camif_cfg_t * get_camif(int nr)
 {
@@ -177,28 +180,34 @@ camif_c_read(struct file *file, char *buf, size_t count, loff_t *pos)
 }
 
 
-static void camif_c_irq(int irq, void *dev_id, struct pt_regs *regs)
+static irqreturn_t camif_c_irq(int irq, void *dev_id)
 {
         camif_cfg_t *cfg = (camif_cfg_t *)dev_id;
+
 	DPRINTK("\n");
 	camif_g_fifo_status(cfg);
 	camif_g_frame_num(cfg);
-	if(camif_enter_c_4fsm(cfg) == INSTANT_SKIP) return;
-	wake_up_interruptible(&cfg->waitq);
+	if(camif_enter_c_4fsm(cfg) != INSTANT_SKIP)
+		wake_up_interruptible(&cfg->waitq);
+
+	return IRQ_HANDLED;
 }
 
-static void camif_p_irq(int irq, void *dev_id, struct pt_regs * regs)
+static irqreturn_t camif_p_irq(int irq, void *dev_id)
 {
         camif_cfg_t *cfg = (camif_cfg_t *)dev_id;
+
 	DPRINTK("\n");
 	camif_g_fifo_status(cfg);
 	camif_g_frame_num(cfg);
-	if(camif_enter_p_4fsm(cfg) == INSTANT_SKIP) return;
-	wake_up_interruptible(&cfg->waitq);
+	if(camif_enter_p_4fsm(cfg) != INSTANT_SKIP)
+		wake_up_interruptible(&cfg->waitq);
 #if 0
 	if( (cfg->perf.frames % 5) == 0)
 		DPRINTK("5\n");
 #endif
+
+	return IRQ_HANDLED;
 }
 
 static void camif_release_irq(camif_cfg_t *cfg)
@@ -213,13 +222,13 @@ static int camif_irq_request(camif_cfg_t *cfg)
 
 	if (cfg->dma_type & CAMIF_CODEC) {
 		if ((ret = request_irq(cfg->irq, camif_c_irq, 
-			       SA_INTERRUPT,cfg->shortname, cfg))) {
+			       0, cfg->shortname, cfg))) {
 			printk("request_irq(CAM_C) failed.\n");
 		}
 	}
 	if (cfg->dma_type & CAMIF_PREVIEW) {
 		if ((ret = request_irq(cfg->irq, camif_p_irq,
-			       SA_INTERRUPT,cfg->shortname, cfg))) {
+			       0, cfg->shortname, cfg))) {
 			printk("request_irq(CAM_P) failed.\n");
 		}
 	}
@@ -438,7 +447,7 @@ static struct video_device codec_template =
 {
 	.name     = "CODEC_IF",
 	.type     = VID_TYPE_CAPTURE|VID_TYPE_CLIPPING|VID_TYPE_SCALES,
-	.hardware = VID_HARDWARE_SAMSUNG_FIMC20,
+/*	.hardware = VID_HARDWARE_SAMSUNG_FIMC20, */
 	.fops     = &camif_c_fops,
 //	.release  = camif_release
 	.minor    = -1,
@@ -448,7 +457,7 @@ static struct video_device preview_template =
 {
 	.name     = "PREVIEW_IF",
 	.type     = VID_TYPE_CAPTURE|VID_TYPE_CLIPPING|VID_TYPE_SCALES,
-	.hardware = VID_HARDWARE_SAMSUNG_FIMC20,
+/*	.hardware = VID_HARDWARE_SAMSUNG_FIMC20, */
 	.fops     = &camif_p_fops,
 	.minor    = -1,
 };
@@ -465,8 +474,8 @@ static int preview_init(camif_cfg_t *cfg)
 	cfg->fmt      = CAMIF_RGB16;
 	cfg->flip     = CAMIF_FLIP_Y;
 	cfg->v        = &preview_template;
-	init_MUTEX(&cfg->v->lock);
-	cfg->irq       = IRQ_CAM_P;
+	mutex_init(&cfg->v->lock);
+	cfg->irq       = IRQ_S3C2440_CAM_P;
 	
 	strcpy(cfg->shortname,name);
         init_waitqueue_head(&cfg->waitq);
@@ -486,8 +495,8 @@ static int codec_init(camif_cfg_t *cfg)
 	cfg->fmt      = CAMIF_IN_YCBCR422|CAMIF_OUT_YCBCR420;
 	cfg->flip     = CAMIF_FLIP_X;
 	cfg->v         = &codec_template;
-	init_MUTEX(&cfg->v->lock);
-	cfg->irq       = IRQ_CAM_C;
+	mutex_init(&cfg->v->lock);
+	cfg->irq       = IRQ_S3C2440_CAM_C;
 	strcpy(cfg->shortname,name);
 	init_waitqueue_head(&cfg->waitq);
 	cfg->status = CAMIF_STOPPED;
@@ -510,25 +519,44 @@ static void print_version(void)
 
 static int camif_m_in(void)
 {
-	int ret = 0;
+	int ret = -EINVAL;
  	camif_cfg_t * cfg;
 
+	printk(KERN_INFO"Starting S3C2440 Camera Driver\n");
+
+	camregs = ioremap(CAM_BASE_ADD, 0x100);
+	if (!camregs) {
+		printk(KERN_ERR"Unable to map camera regs\n");
+		ret = -ENOMEM;
+		goto bail1;
+	}
+
 	camif_init();		
 	cfg = get_camif(CODEC_MINOR);
 	codec_init(cfg);
 
-	if (video_register_device(cfg->v,0,CODEC_MINOR)!=0) {
-			DPRINTK("Couldn't register codec driver.\n");
-			return 0;
+	ret = video_register_device(cfg->v,0,CODEC_MINOR);
+	if (ret) {
+			printk(KERN_ERR"Couldn't register codec driver.\n");
+			goto bail2;
 	}
 	cfg = get_camif(PREVIEW_MINOR);
 	preview_init(cfg);
-	if (video_register_device(cfg->v,0,PREVIEW_MINOR)!=0) {
-			DPRINTK("Couldn't register preview driver.\n");
-			return 0;
+	ret = video_register_device(cfg->v,0,PREVIEW_MINOR);
+	if (ret) {
+			printk(KERN_ERR"Couldn't register preview driver.\n");
+			goto bail3; /* hm seems it us unregistered the once */
 	}
 	
 	print_version();
+	return 0;
+
+bail3:
+	video_unregister_device(cfg->v);
+bail2:
+	iounmap(camregs);
+	camregs = NULL;
+bail1:
 	return ret;
 }
 
@@ -536,7 +564,9 @@ static void unconfig_device(camif_cfg_t *cfg)
 {
 	video_unregister_device(cfg->v);
 	camif_hw_close(cfg);
+	iounmap(camregs);
 	//memset(cfg, 0, sizeof(camif_cfg_t));
+	camregs = NULL;
 }
 
 static void camif_m_out(void)	/* module out */
@@ -547,20 +577,22 @@ static void camif_m_out(void)	/* module out */
 	unconfig_device(cfg);
 	cfg = get_camif(PREVIEW_MINOR);
 	unconfig_device(cfg);
+
 	return;
 }
 
 void camif_register_decoder(struct i2c_client *ptr)
 {
 	camif_cfg_t *cfg;
+	void * data = i2c_get_clientdata(ptr);
 
 	cfg =get_camif(CODEC_MINOR);
-	cfg->gc = (camif_gc_t *)(ptr->data);
+	cfg->gc = (camif_gc_t *)(data);
 
 	cfg =get_camif(PREVIEW_MINOR);
-	cfg->gc = (camif_gc_t *)(ptr->data);
+	cfg->gc = (camif_gc_t *)(data);
 
-	sema_init(&cfg->gc->lock,1); /* global lock for both Codec and Preview */
+	sema_init(&cfg->gc->lock, 1); /* global lock for both Codec and Preview */
 	cfg->gc->status |= PNOTWORKING; /* Default Value */
 	camif_hw_open(cfg->gc);
 }
@@ -568,8 +600,9 @@ void camif_register_decoder(struct i2c_client *ptr)
 void camif_unregister_decoder(struct i2c_client *ptr)
 {
 	camif_gc_t *gc;
+	void * data = i2c_get_clientdata(ptr);
 		
-	gc = (camif_gc_t *)(ptr->data);	
+	gc = (camif_gc_t *)(data);
 	gc->init_sensor = 0; /* need to modify */
 }
 
diff --git a/arch/arm/mach-s3c2440/camera/videodev.c b/arch/arm/mach-s3c2440/camera/videodev.c
index 0b3498f..6f862e4 100644
--- a/arch/arm/mach-s3c2440/camera/videodev.c
+++ b/arch/arm/mach-s3c2440/camera/videodev.c
@@ -22,7 +22,7 @@
 #include <linux/init.h>
 #include <linux/kmod.h>
 #include <linux/slab.h>
-#include <linux/devfs_fs_kernel.h>
+/* #include <linux/devfs_fs_kernel.h> */
 #include <linux/miscdevice.h>
 #include <asm/uaccess.h>
 #include <asm/system.h>
@@ -30,8 +30,9 @@
 
 
 
+#define CONFIG_VIDEO_V4L1_COMPAT
+#include <linux/videodev.h>
 #include "camif.h"
-#include "videodev.h"
 #include "miscdevice.h"
 
 
@@ -42,18 +43,7 @@ const char *fimc_version = "$Id: videodev.c,v 1.1.1.1 2004/04/27 03:52:50 swlee
 #define VIDEO_NAME              "video4linux"
 
 
-static inline unsigned iminor(struct inode *inode)
-{
-        return MINOR(inode->i_rdev);
-}
-
-static inline unsigned imajor(struct inode *inode)
-{
-        return MAJOR(inode->i_rdev);
-}
-
-
-#define VIDEO_NUM_DEVICES	2 
+#define VIDEO_NUM_DEVICES	2
 static struct video_device *video_device[VIDEO_NUM_DEVICES];
 
 static inline struct video_device * get_vd(int nr)
@@ -104,7 +94,7 @@ static int video_open(struct inode *inode, struct file *file)
 	int minor = MINOR(inode->i_rdev);
 	int err = 0;
 	struct video_device *vfl;
-	struct file_operations *old_fops;
+	struct file_operations const *old_fops;
 	
 	down(&videodev_lock);
 
@@ -131,13 +121,13 @@ extern int video_exclusive_open(struct inode *inode, struct file *file)
 	struct  video_device *vfl = get_vd(MINOR(inode->i_rdev));
 	int retval = 0;
 
-	down(&vfl->lock);
+	mutex_lock(&vfl->lock);
 	if (vfl->users) {
 		retval = -EBUSY;
 	} else {
 		vfl->users++;
 	}
-	up(&vfl->lock);
+	mutex_unlock(&vfl->lock);
 	return retval;
 }
 
diff --git a/arch/arm/mach-s3c2440/camera/videodev.h b/arch/arm/mach-s3c2440/camera/videodev.h
index f12db43..1c2e35a 100644
--- a/arch/arm/mach-s3c2440/camera/videodev.h
+++ b/arch/arm/mach-s3c2440/camera/videodev.h
@@ -1,11 +1,11 @@
-#ifndef __LINUX_S3C_VIDEODEV_H
-#define __LINUX_S3C_VIDEODEV_H
+//#ifndef __LINUX_S3C_VIDEODEV_H
+//#define __LINUX_S3C_VIDEODEV_H
 
 #include <linux/types.h>
 #include <linux/version.h>
-#include "videodev2.h"
-
+#include <media/v4l2-dev.h>
 
+#if 0
 struct video_device
 {
 	/* device info */
@@ -96,12 +96,10 @@ extern int video_usercopy(struct inode *inode, struct file *file,
 
 
 
-#define VID_HARDWARE_SAMSUNG_FIMC  255    
-
-
-
-#endif 
+#endif
+//#endif 
 
+#define VID_HARDWARE_SAMSUNG_FIMC  255
 
 /*
  * Local variables:
-- 
1.5.6.5