[PATCH 4/9] omap3isp: Add ISP frontend (CCDC)

[Sakari Ailus <sakari.ailus@maxwell.research.nokia.com>]

Signed-off-by: Sakari Ailus <sakari.ailus@maxwell.research.nokia.com>
---
 drivers/media/video/isp/ispccdc.c | 1568 +++++++++++++++++++++++++++++++++++++
 drivers/media/video/isp/ispccdc.h |  203 +++++
 2 files changed, 1771 insertions(+), 0 deletions(-)
 create mode 100644 drivers/media/video/isp/ispccdc.c
 create mode 100644 drivers/media/video/isp/ispccdc.h

diff --git a/drivers/media/video/isp/ispccdc.c b/drivers/media/video/isp/ispccdc.c
new file mode 100644
index 0000000..80ab762
--- /dev/null
+++ b/drivers/media/video/isp/ispccdc.c
@@ -0,0 +1,1568 @@
+/*
+ * ispccdc.c
+ *
+ * Driver Library for CCDC module in TI's OMAP3 Camera ISP
+ *
+ * Copyright (C) 2009 Texas Instruments, Inc.
+ *
+ * Contributors:
+ *	Senthilvadivu Guruswamy <svadivu@ti.com>
+ *	Pallavi Kulkarni <p-kulkarni@ti.com>
+ *	Sergio Aguirre <saaguirre@ti.com>
+ *
+ * This package 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.
+ *
+ * THIS PACKAGE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
+ * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
+ */
+
+#include <linux/mutex.h>
+#include <linux/module.h>
+#include <linux/uaccess.h>
+
+#include "isp.h"
+#include "ispreg.h"
+#include "ispccdc.h"
+#include "ispmmu.h"
+
+#define LSC_TABLE_INIT_SIZE	50052
+
+static u32 *fpc_table_add;
+static unsigned long fpc_table_add_m;
+
+/**
+ * struct isp_ccdc - Structure for the CCDC module to store its own information
+ * @ccdc_inuse: Flag to determine if CCDC has been reserved or not (0 or 1).
+ * @ccdcout_w: CCDC output width.
+ * @ccdcout_h: CCDC output height.
+ * @ccdcin_w: CCDC input width.
+ * @ccdcin_h: CCDC input height.
+ * @ccdcin_woffset: CCDC input horizontal offset.
+ * @ccdcin_hoffset: CCDC input vertical offset.
+ * @crop_w: Crop width.
+ * @crop_h: Crop weight.
+ * @ccdc_inpfmt: CCDC input format.
+ * @ccdc_outfmt: CCDC output format.
+ * @vpout_en: Video port output enable.
+ * @wen: Data write enable.
+ * @exwen: External data write enable.
+ * @refmt_en: Reformatter enable.
+ * @ccdcslave: CCDC slave mode enable.
+ * @syncif_ipmod: Image
+ * @obclamp_en: Data input format.
+ * @mutexlock: Mutex used to get access to the CCDC.
+ */
+static struct isp_ccdc {
+	u8 ccdc_inuse;
+	u32 ccdcout_w;
+	u32 ccdcout_h;
+	u32 ccdcin_w;
+	u32 ccdcin_h;
+	u32 ccdcin_woffset;
+	u32 ccdcin_hoffset;
+	u32 crop_w;
+	u32 crop_h;
+	u8 ccdc_inpfmt;
+	u8 ccdc_outfmt;
+	u8 vpout_en;
+	u8 wen;
+	u8 exwen;
+	u8 refmt_en;
+	u8 ccdcslave;
+	u8 syncif_ipmod;
+	u8 obclamp_en;
+	u8 lsc_en;
+	struct mutex mutexlock; /* For checking/modifying ccdc_inuse */
+	u32 wenlog;
+} ispccdc_obj;
+
+static struct ispccdc_lsc_config lsc_config;
+static u8 *lsc_gain_table;
+static unsigned long lsc_ispmmu_addr;
+static int lsc_initialized;
+static u8 ccdc_use_lsc;
+static u8 *lsc_gain_table_tmp;
+
+/* Structure for saving/restoring CCDC module registers*/
+static struct isp_reg ispccdc_reg_list[] = {
+	{OMAP3_ISP_IOMEM_CCDC, ISPCCDC_SYN_MODE, 0},
+	{OMAP3_ISP_IOMEM_CCDC, ISPCCDC_HD_VD_WID, 0},
+	{OMAP3_ISP_IOMEM_CCDC, ISPCCDC_PIX_LINES, 0},
+	{OMAP3_ISP_IOMEM_CCDC, ISPCCDC_HORZ_INFO, 0},
+	{OMAP3_ISP_IOMEM_CCDC, ISPCCDC_VERT_START, 0},
+	{OMAP3_ISP_IOMEM_CCDC, ISPCCDC_VERT_LINES, 0},
+	{OMAP3_ISP_IOMEM_CCDC, ISPCCDC_CULLING, 0},
+	{OMAP3_ISP_IOMEM_CCDC, ISPCCDC_HSIZE_OFF, 0},
+	{OMAP3_ISP_IOMEM_CCDC, ISPCCDC_SDOFST, 0},
+	{OMAP3_ISP_IOMEM_CCDC, ISPCCDC_SDR_ADDR, 0},
+	{OMAP3_ISP_IOMEM_CCDC, ISPCCDC_CLAMP, 0},
+	{OMAP3_ISP_IOMEM_CCDC, ISPCCDC_DCSUB, 0},
+	{OMAP3_ISP_IOMEM_CCDC, ISPCCDC_COLPTN, 0},
+	{OMAP3_ISP_IOMEM_CCDC, ISPCCDC_BLKCMP, 0},
+	{OMAP3_ISP_IOMEM_CCDC, ISPCCDC_FPC, 0},
+	{OMAP3_ISP_IOMEM_CCDC, ISPCCDC_FPC_ADDR, 0},
+	{OMAP3_ISP_IOMEM_CCDC, ISPCCDC_VDINT, 0},
+	{OMAP3_ISP_IOMEM_CCDC, ISPCCDC_ALAW, 0},
+	{OMAP3_ISP_IOMEM_CCDC, ISPCCDC_REC656IF, 0},
+	{OMAP3_ISP_IOMEM_CCDC, ISPCCDC_CFG, 0},
+	{OMAP3_ISP_IOMEM_CCDC, ISPCCDC_FMTCFG, 0},
+	{OMAP3_ISP_IOMEM_CCDC, ISPCCDC_FMT_HORZ, 0},
+	{OMAP3_ISP_IOMEM_CCDC, ISPCCDC_FMT_VERT, 0},
+	{OMAP3_ISP_IOMEM_CCDC, ISPCCDC_FMT_ADDR0, 0},
+	{OMAP3_ISP_IOMEM_CCDC, ISPCCDC_FMT_ADDR1, 0},
+	{OMAP3_ISP_IOMEM_CCDC, ISPCCDC_FMT_ADDR2, 0},
+	{OMAP3_ISP_IOMEM_CCDC, ISPCCDC_FMT_ADDR3, 0},
+	{OMAP3_ISP_IOMEM_CCDC, ISPCCDC_FMT_ADDR4, 0},
+	{OMAP3_ISP_IOMEM_CCDC, ISPCCDC_FMT_ADDR5, 0},
+	{OMAP3_ISP_IOMEM_CCDC, ISPCCDC_FMT_ADDR6, 0},
+	{OMAP3_ISP_IOMEM_CCDC, ISPCCDC_FMT_ADDR7, 0},
+	{OMAP3_ISP_IOMEM_CCDC, ISPCCDC_PRGEVEN0, 0},
+	{OMAP3_ISP_IOMEM_CCDC, ISPCCDC_PRGEVEN1, 0},
+	{OMAP3_ISP_IOMEM_CCDC, ISPCCDC_PRGODD0, 0},
+	{OMAP3_ISP_IOMEM_CCDC, ISPCCDC_PRGODD1, 0},
+	{OMAP3_ISP_IOMEM_CCDC, ISPCCDC_VP_OUT, 0},
+	{OMAP3_ISP_IOMEM_CCDC, ISPCCDC_LSC_CONFIG, 0},
+	{OMAP3_ISP_IOMEM_CCDC, ISPCCDC_LSC_INITIAL, 0},
+	{OMAP3_ISP_IOMEM_CCDC, ISPCCDC_LSC_TABLE_BASE, 0},
+	{OMAP3_ISP_IOMEM_CCDC, ISPCCDC_LSC_TABLE_OFFSET, 0},
+	{0, ISP_TOK_TERM, 0}
+};
+
+/**
+ * omap34xx_isp_ccdc_config - Sets CCDC configuration from userspace
+ * @userspace_add: Structure containing CCDC configuration sent from userspace.
+ *
+ * Returns 0 if successful, -EINVAL if the pointer to the configuration
+ * structure is null, or the copy_from_user function fails to copy user space
+ * memory to kernel space memory.
+ **/
+int omap34xx_isp_ccdc_config(void *userspace_add)
+{
+	struct ispccdc_bclamp bclamp_t;
+	struct ispccdc_blcomp blcomp_t;
+	struct ispccdc_fpc fpc_t;
+	struct ispccdc_culling cull_t;
+	struct ispccdc_update_config *ccdc_struct;
+
+	if (userspace_add == NULL)
+		return -EINVAL;
+
+	ccdc_struct = userspace_add;
+
+	if (ISP_ABS_CCDC_ALAW & ccdc_struct->flag) {
+		if (ISP_ABS_CCDC_ALAW & ccdc_struct->update)
+			ispccdc_config_alaw(ccdc_struct->alawip);
+		ispccdc_enable_alaw(1);
+	} else if (ISP_ABS_CCDC_ALAW & ccdc_struct->update)
+		ispccdc_enable_alaw(0);
+
+	if (ISP_ABS_CCDC_LPF & ccdc_struct->flag)
+		ispccdc_enable_lpf(1);
+	else
+		ispccdc_enable_lpf(0);
+
+	if (ISP_ABS_CCDC_BLCLAMP & ccdc_struct->flag) {
+		if (ISP_ABS_CCDC_BLCLAMP & ccdc_struct->update) {
+			if (copy_from_user(&bclamp_t, (struct ispccdc_bclamp *)
+						(ccdc_struct->bclamp),
+						sizeof(struct ispccdc_bclamp)))
+				goto copy_from_user_err;
+
+			ispccdc_enable_black_clamp(1);
+			ispccdc_config_black_clamp(bclamp_t);
+		} else
+			ispccdc_enable_black_clamp(1);
+	} else {
+		if (ISP_ABS_CCDC_BLCLAMP & ccdc_struct->update) {
+			if (copy_from_user(&bclamp_t, (struct ispccdc_bclamp *)
+						(ccdc_struct->bclamp),
+						sizeof(struct ispccdc_bclamp)))
+				goto copy_from_user_err;
+
+			ispccdc_enable_black_clamp(0);
+			ispccdc_config_black_clamp(bclamp_t);
+		}
+	}
+
+	if (ISP_ABS_CCDC_BCOMP & ccdc_struct->update) {
+		if (copy_from_user(&blcomp_t, (struct ispccdc_blcomp *)
+							(ccdc_struct->blcomp),
+							sizeof(blcomp_t)))
+			goto copy_from_user_err;
+
+		ispccdc_config_black_comp(blcomp_t);
+	}
+
+	if (ISP_ABS_CCDC_FPC & ccdc_struct->flag) {
+		if (ISP_ABS_CCDC_FPC & ccdc_struct->update) {
+			if (copy_from_user(&fpc_t, (struct ispccdc_fpc *)
+							(ccdc_struct->fpc),
+							sizeof(fpc_t)))
+				goto copy_from_user_err;
+			fpc_table_add = kmalloc((64 + (fpc_t.fpnum * 4)),
+							GFP_KERNEL | GFP_DMA);
+			if (!fpc_table_add) {
+				printk(KERN_ERR "Cannot allocate memory for"
+								" FPC table");
+				return -ENOMEM;
+			}
+			while (((int)fpc_table_add & 0xFFFFFFC0) !=
+							(int)fpc_table_add)
+				fpc_table_add++;
+
+			fpc_table_add_m = ispmmu_kmap(virt_to_phys
+							(fpc_table_add),
+							(fpc_t.fpnum) * 4);
+
+			if (copy_from_user(fpc_table_add, (u32 *)fpc_t.fpcaddr,
+							fpc_t.fpnum * 4))
+				goto copy_from_user_err;
+
+			fpc_t.fpcaddr = fpc_table_add_m;
+			ispccdc_config_fpc(fpc_t);
+		}
+		ispccdc_enable_fpc(1);
+	} else if (ISP_ABS_CCDC_FPC & ccdc_struct->update)
+			ispccdc_enable_fpc(0);
+
+	if (ISP_ABS_CCDC_CULL & ccdc_struct->update) {
+		if (copy_from_user(&cull_t, (struct ispccdc_culling *)
+							(ccdc_struct->cull),
+							sizeof(cull_t)))
+			goto copy_from_user_err;
+		ispccdc_config_culling(cull_t);
+	}
+
+	if (is_isplsc_activated()) {
+		if (ISP_ABS_CCDC_CONFIG_LSC & ccdc_struct->flag) {
+			if (ISP_ABS_CCDC_CONFIG_LSC & ccdc_struct->update) {
+				if (copy_from_user(&lsc_config,
+						(struct ispccdc_lsc_config *)
+						(ccdc_struct->lsc_cfg),
+						sizeof(struct
+						ispccdc_lsc_config)))
+					goto copy_from_user_err;
+				ispccdc_config_lsc(&lsc_config);
+			}
+			ccdc_use_lsc = 1;
+		} else if (ISP_ABS_CCDC_CONFIG_LSC & ccdc_struct->update) {
+				ispccdc_enable_lsc(0);
+				ccdc_use_lsc = 0;
+		}
+		if (ISP_ABS_TBL_LSC & ccdc_struct->update) {
+			if (copy_from_user(lsc_gain_table,
+				(ccdc_struct->lsc), lsc_config.size))
+				goto copy_from_user_err;
+			ispccdc_load_lsc(lsc_gain_table, lsc_config.size);
+		}
+	}
+
+	if (ISP_ABS_CCDC_COLPTN & ccdc_struct->update)
+		ispccdc_config_imgattr(ccdc_struct->colptn);
+
+	return 0;
+
+copy_from_user_err:
+	printk(KERN_ERR "CCDC Config:Copy From User Error");
+	return -EINVAL ;
+}
+EXPORT_SYMBOL(omap34xx_isp_ccdc_config);
+
+/**
+ * Set the value to be used for CCDC_CFG.WENLOG.
+ *  w - Value of wenlog.
+ */
+void ispccdc_set_wenlog(u32 wenlog)
+{
+	ispccdc_obj.wenlog = wenlog;
+}
+EXPORT_SYMBOL(ispccdc_set_wenlog);
+
+/**
+ * ispccdc_request - Reserves the CCDC module.
+ *
+ * Reserves the CCDC module and assures that is used only once at a time.
+ *
+ * Returns 0 if successful, or -EBUSY if CCDC module is busy.
+ **/
+int ispccdc_request(void)
+{
+	mutex_lock(&ispccdc_obj.mutexlock);
+	if (ispccdc_obj.ccdc_inuse) {
+		mutex_unlock(&ispccdc_obj.mutexlock);
+		DPRINTK_ISPCCDC("ISP_ERR : CCDC Module Busy");
+		return -EBUSY;
+	}
+
+	ispccdc_obj.ccdc_inuse = 1;
+	mutex_unlock(&ispccdc_obj.mutexlock);
+	isp_reg_or(OMAP3_ISP_IOMEM_MAIN, ISP_CTRL, ISPCTRL_CCDC_RAM_EN |
+							ISPCTRL_CCDC_CLK_EN |
+							ISPCTRL_SBL_WR1_RAM_EN);
+	isp_reg_or(OMAP3_ISP_IOMEM_CCDC, ISPCCDC_CFG, ISPCCDC_CFG_VDLC);
+	return 0;
+}
+EXPORT_SYMBOL(ispccdc_request);
+
+/**
+ * ispccdc_free - Frees the CCDC module.
+ *
+ * Frees the CCDC module so it can be used by another process.
+ *
+ * Returns 0 if successful, or -EINVAL if module has been already freed.
+ **/
+int ispccdc_free(void)
+{
+	mutex_lock(&ispccdc_obj.mutexlock);
+	if (!ispccdc_obj.ccdc_inuse) {
+		mutex_unlock(&ispccdc_obj.mutexlock);
+		DPRINTK_ISPCCDC("ISP_ERR: CCDC Module already freed\n");
+		return -EINVAL;
+	}
+
+	ispccdc_obj.ccdc_inuse = 0;
+	mutex_unlock(&ispccdc_obj.mutexlock);
+	isp_reg_and(OMAP3_ISP_IOMEM_MAIN, ISP_CTRL,
+			~(ISPCTRL_CCDC_CLK_EN |
+			ISPCTRL_CCDC_RAM_EN |
+			ISPCTRL_SBL_WR1_RAM_EN));
+	return 0;
+}
+EXPORT_SYMBOL(ispccdc_free);
+
+/**
+ * ispccdc_free_lsc - Frees Lens Shading Compensation table
+ *
+ * Always returns 0.
+ **/
+static int ispccdc_free_lsc(void)
+{
+	if (!lsc_ispmmu_addr)
+		return 0;
+
+	ispccdc_enable_lsc(0);
+	lsc_initialized = 0;
+	isp_reg_writel(0, OMAP3_ISP_IOMEM_CCDC, ISPCCDC_LSC_TABLE_BASE);
+	ispmmu_kunmap(lsc_ispmmu_addr);
+	kfree(lsc_gain_table);
+	return 0;
+}
+
+/**
+ * ispccdc_allocate_lsc - Allocate space for Lens Shading Compensation table
+ * @table_size: LSC gain table size.
+ *
+ * Returns 0 if successful, -ENOMEM of its no memory available, or -EINVAL if
+ * table_size is zero.
+ **/
+static int ispccdc_allocate_lsc(u32 table_size)
+{
+	if (table_size == 0)
+		return -EINVAL;
+
+	if ((lsc_config.size >= table_size) && lsc_gain_table)
+		return 0;
+
+	ispccdc_free_lsc();
+
+	lsc_gain_table = kmalloc(table_size, GFP_KERNEL | GFP_DMA);
+
+	if (!lsc_gain_table) {
+		printk(KERN_ERR "Cannot allocate memory for gain tables \n");
+		return -ENOMEM;
+	}
+
+	lsc_ispmmu_addr = ispmmu_kmap(virt_to_phys(lsc_gain_table), table_size);
+	if (lsc_ispmmu_addr <= 0) {
+		printk(KERN_ERR "Cannot map memory for gain tables \n");
+		kfree(lsc_gain_table);
+		return -ENOMEM;
+	}
+
+	return 0;
+}
+
+/**
+ * ispccdc_program_lsc - Program Lens Shading Compensation table.
+ * @table_size: LSC gain table size.
+ *
+ * Returns 0 if successful, or -EINVAL if there's no mapped address for the
+ * table yet.
+ **/
+static int ispccdc_program_lsc(void)
+{
+	if (!lsc_ispmmu_addr)
+		return -EINVAL;
+
+	if (lsc_initialized)
+		return 0;
+
+	isp_reg_writel(lsc_ispmmu_addr, OMAP3_ISP_IOMEM_CCDC,
+						ISPCCDC_LSC_TABLE_BASE);
+	lsc_initialized = 1;
+	return 0;
+}
+
+/**
+ * ispccdc_load_lsc - Load Lens Shading Compensation table.
+ * @table_addr: LSC gain table MMU Mapped address.
+ * @table_size: LSC gain table size.
+ *
+ * Returns 0 if successful, -ENOMEM of its no memory available, or -EINVAL if
+ * table_size is zero.
+ **/
+int ispccdc_load_lsc(u8 *table_addr, u32 table_size)
+{
+	int ret;
+
+	if (!is_isplsc_activated())
+		return 0;
+
+	if (!table_addr)
+		return -EINVAL;
+
+	ret = ispccdc_allocate_lsc(table_size);
+	if (ret)
+		return ret;
+
+	if (table_addr != lsc_gain_table)
+		memcpy(lsc_gain_table, table_addr, table_size);
+	ret = ispccdc_program_lsc();
+	if (ret)
+		return ret;
+	return 0;
+}
+EXPORT_SYMBOL(ispccdc_load_lsc);
+
+/**
+ * ispccdc_config_lsc - Configures the lens shading compensation module
+ * @lsc_cfg: LSC configuration structure
+ **/
+void ispccdc_config_lsc(struct ispccdc_lsc_config *lsc_cfg)
+{
+	int reg;
+
+	if (!is_isplsc_activated())
+		return;
+
+	ispccdc_enable_lsc(0);
+	isp_reg_writel(lsc_cfg->offset, OMAP3_ISP_IOMEM_CCDC,
+					ISPCCDC_LSC_TABLE_OFFSET);
+
+	reg = 0;
+	reg |= (lsc_cfg->gain_mode_n << ISPCCDC_LSC_GAIN_MODE_N_SHIFT);
+	reg |= (lsc_cfg->gain_mode_m << ISPCCDC_LSC_GAIN_MODE_M_SHIFT);
+	reg |= (lsc_cfg->gain_format << ISPCCDC_LSC_GAIN_FORMAT_SHIFT);
+	isp_reg_writel(reg, OMAP3_ISP_IOMEM_CCDC, ISPCCDC_LSC_CONFIG);
+
+	reg = 0;
+	reg &= ~ISPCCDC_LSC_INITIAL_X_MASK;
+	reg |= (lsc_cfg->initial_x << ISPCCDC_LSC_INITIAL_X_SHIFT);
+	reg &= ~ISPCCDC_LSC_INITIAL_Y_MASK;
+	reg |= (lsc_cfg->initial_y << ISPCCDC_LSC_INITIAL_Y_SHIFT);
+	isp_reg_writel(reg, OMAP3_ISP_IOMEM_CCDC, ISPCCDC_LSC_INITIAL);
+}
+EXPORT_SYMBOL(ispccdc_config_lsc);
+
+/**
+ * ispccdc_enable_lsc - Enables/Disables the Lens Shading Compensation module.
+ * @enable: 0 Disables LSC, 1 Enables LSC.
+ **/
+void ispccdc_enable_lsc(u8 enable)
+{
+	if (!is_isplsc_activated())
+		return;
+
+	if (enable) {
+		isp_reg_or(OMAP3_ISP_IOMEM_MAIN, ISP_CTRL,
+			ISPCTRL_SBL_SHARED_RPORTB | ISPCTRL_SBL_RD_RAM_EN);
+
+		isp_reg_or(OMAP3_ISP_IOMEM_CCDC, ISPCCDC_LSC_CONFIG, 0x1);
+
+		ispccdc_obj.lsc_en = 1;
+	} else {
+		isp_reg_and(OMAP3_ISP_IOMEM_CCDC, ISPCCDC_LSC_CONFIG, 0xFFFE);
+		ispccdc_obj.lsc_en = 0;
+	}
+}
+EXPORT_SYMBOL(ispccdc_enable_lsc);
+
+
+/**
+ * ispccdc_config_crop - Configures crop parameters for the ISP CCDC.
+ * @left: Left offset of the crop area.
+ * @top: Top offset of the crop area.
+ * @height: Height of the crop area.
+ * @width: Width of the crop area.
+ *
+ * The following restrictions are applied for the crop settings. If incoming
+ * values do not follow these restrictions then we map the settings to the
+ * closest acceptable crop value.
+ * 1) Left offset is always odd. This can be avoided if we enable byte swap
+ *    option for incoming data into CCDC.
+ * 2) Top offset is always even.
+ * 3) Crop height is always even.
+ * 4) Crop width is always a multiple of 16 pixels
+ **/
+void ispccdc_config_crop(u32 left, u32 top, u32 height, u32 width)
+{
+	ispccdc_obj.ccdcin_woffset = left + (left % 2);
+	ispccdc_obj.ccdcin_hoffset = top + (top % 2);
+
+	ispccdc_obj.crop_w = width - (width % 16);
+	ispccdc_obj.crop_h = height + (height % 2);
+
+	DPRINTK_ISPCCDC("\n\tOffsets L %d T %d W %d H %d\n",
+						ispccdc_obj.ccdcin_woffset,
+						ispccdc_obj.ccdcin_hoffset,
+						ispccdc_obj.crop_w,
+						ispccdc_obj.crop_h);
+}
+
+/**
+ * ispccdc_config_datapath - Specifies the input and output modules for CCDC.
+ * @input: Indicates the module that inputs the image to the CCDC.
+ * @output: Indicates the module to which the CCDC outputs the image.
+ *
+ * Configures the default configuration for the CCDC to work with.
+ *
+ * The valid values for the input are CCDC_RAW (0), CCDC_YUV_SYNC (1),
+ * CCDC_YUV_BT (2), and CCDC_OTHERS (3).
+ *
+ * The valid values for the output are CCDC_YUV_RSZ (0), CCDC_YUV_MEM_RSZ (1),
+ * CCDC_OTHERS_VP (2), CCDC_OTHERS_MEM (3), CCDC_OTHERS_VP_MEM (4).
+ *
+ * Returns 0 if successful, or -EINVAL if wrong I/O combination or wrong input
+ * or output values.
+ **/
+int ispccdc_config_datapath(enum ccdc_input input, enum ccdc_output output)
+{
+	u32 syn_mode = 0;
+	struct ispccdc_vp vpcfg;
+	struct ispccdc_syncif syncif;
+	struct ispccdc_bclamp blkcfg;
+
+	u32 colptn = (ISPCCDC_COLPTN_Gr_Cy << ISPCCDC_COLPTN_CP0PLC0_SHIFT) |
+		(ISPCCDC_COLPTN_R_Ye << ISPCCDC_COLPTN_CP0PLC1_SHIFT) |
+		(ISPCCDC_COLPTN_Gr_Cy << ISPCCDC_COLPTN_CP0PLC2_SHIFT) |
+		(ISPCCDC_COLPTN_R_Ye << ISPCCDC_COLPTN_CP0PLC3_SHIFT) |
+		(ISPCCDC_COLPTN_B_Mg << ISPCCDC_COLPTN_CP1PLC0_SHIFT) |
+		(ISPCCDC_COLPTN_Gb_G << ISPCCDC_COLPTN_CP1PLC1_SHIFT) |
+		(ISPCCDC_COLPTN_B_Mg << ISPCCDC_COLPTN_CP1PLC2_SHIFT) |
+		(ISPCCDC_COLPTN_Gb_G << ISPCCDC_COLPTN_CP1PLC3_SHIFT) |
+		(ISPCCDC_COLPTN_Gr_Cy << ISPCCDC_COLPTN_CP2PLC0_SHIFT) |
+		(ISPCCDC_COLPTN_R_Ye << ISPCCDC_COLPTN_CP2PLC1_SHIFT) |
+		(ISPCCDC_COLPTN_Gr_Cy << ISPCCDC_COLPTN_CP2PLC2_SHIFT) |
+		(ISPCCDC_COLPTN_R_Ye << ISPCCDC_COLPTN_CP2PLC3_SHIFT) |
+		(ISPCCDC_COLPTN_B_Mg << ISPCCDC_COLPTN_CP3PLC0_SHIFT) |
+		(ISPCCDC_COLPTN_Gb_G << ISPCCDC_COLPTN_CP3PLC1_SHIFT) |
+		(ISPCCDC_COLPTN_B_Mg << ISPCCDC_COLPTN_CP3PLC2_SHIFT) |
+		(ISPCCDC_COLPTN_Gb_G << ISPCCDC_COLPTN_CP3PLC3_SHIFT);
+
+	/* CCDC does not convert the image format */
+	if (((input == CCDC_RAW) || (input == CCDC_OTHERS)) &&
+						(output == CCDC_YUV_RSZ)) {
+		DPRINTK_ISPCCDC("ISP_ERR: Wrong CCDC I/O Combination\n");
+		return -EINVAL;
+	}
+
+	syn_mode = isp_reg_readl(OMAP3_ISP_IOMEM_CCDC, ISPCCDC_SYN_MODE);
+
+	switch (output) {
+	case CCDC_YUV_RSZ:
+		syn_mode |= ISPCCDC_SYN_MODE_SDR2RSZ;
+		syn_mode &= ~ISPCCDC_SYN_MODE_WEN;
+		break;
+
+	case CCDC_YUV_MEM_RSZ:
+		syn_mode |= ISPCCDC_SYN_MODE_SDR2RSZ;
+		ispccdc_obj.wen = 1;
+		syn_mode |= ISPCCDC_SYN_MODE_WEN;
+		break;
+
+	case CCDC_OTHERS_VP:
+		syn_mode &= ~ISPCCDC_SYN_MODE_VP2SDR;
+		syn_mode &= ~ISPCCDC_SYN_MODE_SDR2RSZ;
+		syn_mode &= ~ISPCCDC_SYN_MODE_WEN;
+		vpcfg.bitshift_sel = BIT9_0;
+		vpcfg.freq_sel = PIXCLKBY2;
+		ispccdc_config_vp(vpcfg);
+		ispccdc_enable_vp(1);
+		break;
+
+	case CCDC_OTHERS_MEM:
+		syn_mode &= ~ISPCCDC_SYN_MODE_VP2SDR;
+		syn_mode &= ~ISPCCDC_SYN_MODE_SDR2RSZ;
+		syn_mode |= ISPCCDC_SYN_MODE_WEN;
+		syn_mode &= ~ISPCCDC_SYN_MODE_EXWEN;
+		isp_reg_and(OMAP3_ISP_IOMEM_CCDC, ISPCCDC_CFG,
+							~ISPCCDC_CFG_WENLOG);
+		vpcfg.bitshift_sel = BIT11_2;
+		vpcfg.freq_sel = PIXCLKBY2;
+		ispccdc_config_vp(vpcfg);
+		ispccdc_enable_vp(0);
+		break;
+
+	case CCDC_OTHERS_VP_MEM:
+		syn_mode &= ~ISPCCDC_SYN_MODE_VP2SDR;
+		syn_mode &= ~ISPCCDC_SYN_MODE_SDR2RSZ;
+		syn_mode |= ISPCCDC_SYN_MODE_WEN;
+		syn_mode &= ~ISPCCDC_SYN_MODE_EXWEN;
+
+		isp_reg_and_or(OMAP3_ISP_IOMEM_CCDC, ISPCCDC_CFG,
+							~ISPCCDC_CFG_WENLOG,
+							ispccdc_obj.wenlog);
+		vpcfg.bitshift_sel = BIT9_0;
+		vpcfg.freq_sel = PIXCLKBY2;
+		ispccdc_config_vp(vpcfg);
+		ispccdc_enable_vp(1);
+		break;
+	default:
+		DPRINTK_ISPCCDC("ISP_ERR: Wrong CCDC Output");
+		return -EINVAL;
+	};
+
+	isp_reg_writel(syn_mode, OMAP3_ISP_IOMEM_CCDC, ISPCCDC_SYN_MODE);
+
+	switch (input) {
+	case CCDC_RAW:
+		syncif.ccdc_mastermode = 0;
+		syncif.datapol = 0;
+		syncif.datsz = DAT10;
+		syncif.fldmode = 0;
+		syncif.fldout = 0;
+		syncif.fldpol = 0;
+		syncif.fldstat = 0;
+		syncif.hdpol = 0;
+		syncif.ipmod = RAW;
+		syncif.vdpol = 0;
+		ispccdc_config_sync_if(syncif);
+		ispccdc_config_imgattr(colptn);
+		blkcfg.dcsubval = 64;
+		ispccdc_config_black_clamp(blkcfg);
+		if (is_isplsc_activated()) {
+			ispccdc_config_lsc(&lsc_config);
+			ispccdc_load_lsc(lsc_gain_table_tmp,
+							LSC_TABLE_INIT_SIZE);
+		}
+
+		break;
+	case CCDC_YUV_SYNC:
+		syncif.ccdc_mastermode = 0;
+		syncif.datapol = 0;
+		syncif.datsz = DAT8;
+		syncif.fldmode = 0;
+		syncif.fldout = 0;
+		syncif.fldpol = 0;
+		syncif.fldstat = 0;
+		syncif.hdpol = 0;
+		syncif.ipmod = YUV16;
+		syncif.vdpol = 1;
+		ispccdc_config_imgattr(0);
+		ispccdc_config_sync_if(syncif);
+		blkcfg.dcsubval = 0;
+		ispccdc_config_black_clamp(blkcfg);
+		break;
+	case CCDC_YUV_BT:
+		break;
+	case CCDC_OTHERS:
+		break;
+	default:
+		DPRINTK_ISPCCDC("ISP_ERR: Wrong CCDC Input");
+		return -EINVAL;
+	}
+
+	ispccdc_obj.ccdc_inpfmt = input;
+	ispccdc_obj.ccdc_outfmt = output;
+	ispccdc_print_status();
+	isp_print_status();
+	return 0;
+}
+EXPORT_SYMBOL(ispccdc_config_datapath);
+
+/**
+ * ispccdc_config_sync_if - Sets the sync i/f params between sensor and CCDC.
+ * @syncif: Structure containing the sync parameters like field state, CCDC in
+ *          master/slave mode, raw/yuv data, polarity of data, field, hs, vs
+ *          signals.
+ **/
+void ispccdc_config_sync_if(struct ispccdc_syncif syncif)
+{
+	u32 syn_mode = isp_reg_readl(OMAP3_ISP_IOMEM_CCDC, ISPCCDC_SYN_MODE);
+
+	syn_mode |= ISPCCDC_SYN_MODE_VDHDEN;
+
+	if (syncif.fldstat)
+		syn_mode |= ISPCCDC_SYN_MODE_FLDSTAT;
+	else
+		syn_mode &= ~ISPCCDC_SYN_MODE_FLDSTAT;
+
+	syn_mode &= ISPCCDC_SYN_MODE_INPMOD_MASK;
+	ispccdc_obj.syncif_ipmod = syncif.ipmod;
+
+	switch (syncif.ipmod) {
+	case RAW:
+		break;
+	case YUV16:
+		syn_mode |= ISPCCDC_SYN_MODE_INPMOD_YCBCR16;
+		break;
+	case YUV8:
+		syn_mode |= ISPCCDC_SYN_MODE_INPMOD_YCBCR8;
+		break;
+	};
+
+	syn_mode &= ISPCCDC_SYN_MODE_DATSIZ_MASK;
+	switch (syncif.datsz) {
+	case DAT8:
+		syn_mode |= ISPCCDC_SYN_MODE_DATSIZ_8;
+		break;
+	case DAT10:
+		syn_mode |= ISPCCDC_SYN_MODE_DATSIZ_10;
+		break;
+	case DAT11:
+		syn_mode |= ISPCCDC_SYN_MODE_DATSIZ_11;
+		break;
+	case DAT12:
+		syn_mode |= ISPCCDC_SYN_MODE_DATSIZ_12;
+		break;
+	};
+
+	if (syncif.fldmode)
+		syn_mode |= ISPCCDC_SYN_MODE_FLDMODE;
+	else
+		syn_mode &= ~ISPCCDC_SYN_MODE_FLDMODE;
+
+	if (syncif.datapol)
+		syn_mode |= ISPCCDC_SYN_MODE_DATAPOL;
+	else
+		syn_mode &= ~ISPCCDC_SYN_MODE_DATAPOL;
+
+	if (syncif.fldpol)
+		syn_mode |= ISPCCDC_SYN_MODE_FLDPOL;
+	else
+		syn_mode &= ~ISPCCDC_SYN_MODE_FLDPOL;
+
+	if (syncif.hdpol)
+		syn_mode |= ISPCCDC_SYN_MODE_HDPOL;
+	else
+		syn_mode &= ~ISPCCDC_SYN_MODE_HDPOL;
+
+	if (syncif.vdpol)
+		syn_mode |= ISPCCDC_SYN_MODE_VDPOL;
+	else
+		syn_mode &= ~ISPCCDC_SYN_MODE_VDPOL;
+
+	if (syncif.ccdc_mastermode) {
+		syn_mode |= ISPCCDC_SYN_MODE_FLDOUT | ISPCCDC_SYN_MODE_VDHDOUT;
+		isp_reg_writel((syncif.hs_width << ISPCCDC_HD_VD_WID_HDW_SHIFT)
+						| (syncif.vs_width <<
+						ISPCCDC_HD_VD_WID_VDW_SHIFT),
+						OMAP3_ISP_IOMEM_CCDC,
+						ISPCCDC_HD_VD_WID);
+
+		isp_reg_writel(syncif.ppln << ISPCCDC_PIX_LINES_PPLN_SHIFT
+			| syncif.hlprf << ISPCCDC_PIX_LINES_HLPRF_SHIFT,
+			OMAP3_ISP_IOMEM_CCDC,
+			ISPCCDC_PIX_LINES);
+	} else
+		syn_mode &= ~(ISPCCDC_SYN_MODE_FLDOUT |
+						ISPCCDC_SYN_MODE_VDHDOUT);
+
+	isp_reg_writel(syn_mode, OMAP3_ISP_IOMEM_CCDC, ISPCCDC_SYN_MODE);
+
+	if (!(syncif.bt_r656_en)) {
+		isp_reg_and(OMAP3_ISP_IOMEM_CCDC, ISPCCDC_REC656IF,
+						~ISPCCDC_REC656IF_R656ON);
+	}
+}
+EXPORT_SYMBOL(ispccdc_config_sync_if);
+
+/**
+ * ispccdc_config_black_clamp - Configures the clamp parameters in CCDC.
+ * @bclamp: Structure containing the optical black average gain, optical black
+ *          sample length, sample lines, and the start pixel position of the
+ *          samples w.r.t the HS pulse.
+ * Configures the clamp parameters in CCDC. Either if its being used the
+ * optical black clamp, or the digital clamp. If its a digital clamp, then
+ * assures to put a valid DC substraction level.
+ *
+ * Returns always 0 when completed.
+ **/
+int ispccdc_config_black_clamp(struct ispccdc_bclamp bclamp)
+{
+	u32 bclamp_val = 0;
+
+	if (ispccdc_obj.obclamp_en) {
+		bclamp_val |= bclamp.obgain << ISPCCDC_CLAMP_OBGAIN_SHIFT;
+		bclamp_val |= bclamp.oblen << ISPCCDC_CLAMP_OBSLEN_SHIFT;
+		bclamp_val |= bclamp.oblines << ISPCCDC_CLAMP_OBSLN_SHIFT;
+		bclamp_val |= bclamp.obstpixel << ISPCCDC_CLAMP_OBST_SHIFT;
+		isp_reg_writel(bclamp_val, OMAP3_ISP_IOMEM_CCDC,
+							ISPCCDC_CLAMP);
+	} else {
+		if (omap_rev() < OMAP3430_REV_ES2_0)
+			if ((ispccdc_obj.syncif_ipmod == YUV16) ||
+					(ispccdc_obj.syncif_ipmod == YUV8) ||
+					(isp_reg_readl(OMAP3_ISP_IOMEM_CCDC,
+					ISPCCDC_REC656IF) &
+					ISPCCDC_REC656IF_R656ON))
+				bclamp.dcsubval = 0;
+		isp_reg_writel(bclamp.dcsubval, OMAP3_ISP_IOMEM_CCDC,
+							ISPCCDC_DCSUB);
+	}
+	return 0;
+}
+EXPORT_SYMBOL(ispccdc_config_black_clamp);
+
+/**
+ * ispccdc_enable_black_clamp - Enables/Disables the optical black clamp.
+ * @enable: 0 Disables optical black clamp, 1 Enables optical black clamp.
+ *
+ * Enables or disables the optical black clamp. When disabled, the digital
+ * clamp operates.
+ **/
+void ispccdc_enable_black_clamp(u8 enable)
+{
+	isp_reg_and_or(OMAP3_ISP_IOMEM_CCDC, ISPCCDC_CLAMP,
+					~ISPCCDC_CLAMP_CLAMPEN,
+					enable ? ISPCCDC_CLAMP_CLAMPEN : 0);
+	ispccdc_obj.obclamp_en = enable;
+}
+EXPORT_SYMBOL(ispccdc_enable_black_clamp);
+
+/**
+ * ispccdc_config_fpc - Configures the Faulty Pixel Correction parameters.
+ * @fpc: Structure containing the number of faulty pixels corrected in the
+ *       frame, address of the FPC table.
+ *
+ * Returns 0 if successful, or -EINVAL if FPC Address is not on the 64 byte
+ * boundary.
+ **/
+int ispccdc_config_fpc(struct ispccdc_fpc fpc)
+{
+	u32 fpc_val = 0;
+
+	fpc_val = isp_reg_readl(OMAP3_ISP_IOMEM_CCDC, ISPCCDC_FPC);
+
+	if ((fpc.fpcaddr & 0xFFFFFFC0) == fpc.fpcaddr) {
+		isp_reg_writel(fpc_val & (~ISPCCDC_FPC_FPCEN),
+					OMAP3_ISP_IOMEM_CCDC, ISPCCDC_FPC);
+		isp_reg_writel(fpc.fpcaddr,
+				OMAP3_ISP_IOMEM_CCDC, ISPCCDC_FPC_ADDR);
+	} else {
+		DPRINTK_ISPCCDC("FPC Address should be on 64byte boundary\n");
+		return -EINVAL;
+	}
+	isp_reg_writel(fpc_val | (fpc.fpnum << ISPCCDC_FPC_FPNUM_SHIFT),
+					OMAP3_ISP_IOMEM_CCDC, ISPCCDC_FPC);
+	return 0;
+}
+EXPORT_SYMBOL(ispccdc_config_fpc);
+
+/**
+ * ispccdc_enable_fpc - Enables the Faulty Pixel Correction.
+ * @enable: 0 Disables FPC, 1 Enables FPC.
+ **/
+void ispccdc_enable_fpc(u8 enable)
+{
+	isp_reg_and_or(OMAP3_ISP_IOMEM_CCDC, ISPCCDC_FPC,
+					~ISPCCDC_FPC_FPCEN,
+					enable ? ISPCCDC_FPC_FPCEN : 0);
+}
+EXPORT_SYMBOL(ispccdc_enable_fpc);
+
+/**
+ * ispccdc_config_black_comp - Configures Black Level Compensation parameters.
+ * @blcomp: Structure containing the black level compensation value for RGrGbB
+ *          pixels. in 2's complement.
+ **/
+void ispccdc_config_black_comp(struct ispccdc_blcomp blcomp)
+{
+	u32 blcomp_val = 0;
+
+	blcomp_val |= blcomp.b_mg << ISPCCDC_BLKCMP_B_MG_SHIFT;
+	blcomp_val |= blcomp.gb_g << ISPCCDC_BLKCMP_GB_G_SHIFT;
+	blcomp_val |= blcomp.gr_cy << ISPCCDC_BLKCMP_GR_CY_SHIFT;
+	blcomp_val |= blcomp.r_ye << ISPCCDC_BLKCMP_R_YE_SHIFT;
+
+	isp_reg_writel(blcomp_val, OMAP3_ISP_IOMEM_CCDC, ISPCCDC_BLKCMP);
+}
+EXPORT_SYMBOL(ispccdc_config_black_comp);
+
+/**
+ * ispccdc_config_vp - Configures the Video Port Configuration parameters.
+ * @vpcfg: Structure containing the Video Port input frequency, and the 10 bit
+ *         format.
+ **/
+void ispccdc_config_vp(struct ispccdc_vp vpcfg)
+{
+	u32 fmtcfg_vp = isp_reg_readl(OMAP3_ISP_IOMEM_CCDC, ISPCCDC_FMTCFG);
+
+	fmtcfg_vp &= ISPCCDC_FMTCFG_VPIN_MASK & ISPCCDC_FMTCF_VPIF_FRQ_MASK;
+
+	switch (vpcfg.bitshift_sel) {
+	case BIT9_0:
+		fmtcfg_vp |= ISPCCDC_FMTCFG_VPIN_9_0;
+		break;
+	case BIT10_1:
+		fmtcfg_vp |= ISPCCDC_FMTCFG_VPIN_10_1;
+		break;
+	case BIT11_2:
+		fmtcfg_vp |= ISPCCDC_FMTCFG_VPIN_11_2;
+		break;
+	case BIT12_3:
+		fmtcfg_vp |= ISPCCDC_FMTCFG_VPIN_12_3;
+		break;
+	};
+	switch (vpcfg.freq_sel) {
+	case PIXCLKBY2:
+		fmtcfg_vp |= ISPCCDC_FMTCF_VPIF_FRQ_BY2;
+		break;
+	case PIXCLKBY3_5:
+		fmtcfg_vp |= ISPCCDC_FMTCF_VPIF_FRQ_BY3;
+		break;
+	case PIXCLKBY4_5:
+		fmtcfg_vp |= ISPCCDC_FMTCF_VPIF_FRQ_BY4;
+		break;
+	case PIXCLKBY5_5:
+		fmtcfg_vp |= ISPCCDC_FMTCF_VPIF_FRQ_BY5;
+		break;
+	case PIXCLKBY6_5:
+		fmtcfg_vp |= ISPCCDC_FMTCF_VPIF_FRQ_BY6;
+		break;
+	};
+	isp_reg_writel(fmtcfg_vp, OMAP3_ISP_IOMEM_CCDC, ISPCCDC_FMTCFG);
+}
+EXPORT_SYMBOL(ispccdc_config_vp);
+
+/**
+ * ispccdc_enable_vp - Enables the Video Port.
+ * @enable: 0 Disables VP, 1 Enables VP
+ **/
+void ispccdc_enable_vp(u8 enable)
+{
+	isp_reg_and_or(OMAP3_ISP_IOMEM_CCDC, ISPCCDC_FMTCFG,
+					~ISPCCDC_FMTCFG_VPEN,
+					enable ? ISPCCDC_FMTCFG_VPEN : 0);
+}
+EXPORT_SYMBOL(ispccdc_enable_vp);
+
+/**
+ * ispccdc_config_reformatter - Configures the Reformatter.
+ * @refmt: Structure containing the memory address to format and the bit fields
+ *         for the reformatter registers.
+ *
+ * Configures the Reformatter register values if line alternating is disabled.
+ * Else, just enabling line alternating is enough.
+ **/
+void ispccdc_config_reformatter(struct ispccdc_refmt refmt)
+{
+	u32 fmtcfg_val = 0;
+
+	fmtcfg_val = isp_reg_readl(OMAP3_ISP_IOMEM_CCDC, ISPCCDC_FMTCFG);
+
+	if (refmt.lnalt)
+		fmtcfg_val |= ISPCCDC_FMTCFG_LNALT;
+	else {
+		fmtcfg_val &= ~ISPCCDC_FMTCFG_LNALT;
+		fmtcfg_val &= 0xFFFFF003;
+		fmtcfg_val |= refmt.lnum << ISPCCDC_FMTCFG_LNUM_SHIFT;
+		fmtcfg_val |= refmt.plen_even <<
+						ISPCCDC_FMTCFG_PLEN_EVEN_SHIFT;
+		fmtcfg_val |= refmt.plen_odd << ISPCCDC_FMTCFG_PLEN_ODD_SHIFT;
+
+		isp_reg_writel(refmt.prgeven0, OMAP3_ISP_IOMEM_CCDC,
+							ISPCCDC_PRGEVEN0);
+		isp_reg_writel(refmt.prgeven1, OMAP3_ISP_IOMEM_CCDC,
+							ISPCCDC_PRGEVEN1);
+		isp_reg_writel(refmt.prgodd0, OMAP3_ISP_IOMEM_CCDC,
+							ISPCCDC_PRGODD0);
+		isp_reg_writel(refmt.prgodd1, OMAP3_ISP_IOMEM_CCDC,
+							ISPCCDC_PRGODD1);
+		isp_reg_writel(refmt.fmtaddr0, OMAP3_ISP_IOMEM_CCDC,
+							ISPCCDC_FMT_ADDR0);
+		isp_reg_writel(refmt.fmtaddr1, OMAP3_ISP_IOMEM_CCDC,
+							ISPCCDC_FMT_ADDR1);
+		isp_reg_writel(refmt.fmtaddr2, OMAP3_ISP_IOMEM_CCDC,
+							ISPCCDC_FMT_ADDR2);
+		isp_reg_writel(refmt.fmtaddr3, OMAP3_ISP_IOMEM_CCDC,
+							ISPCCDC_FMT_ADDR3);
+		isp_reg_writel(refmt.fmtaddr4, OMAP3_ISP_IOMEM_CCDC,
+							ISPCCDC_FMT_ADDR4);
+		isp_reg_writel(refmt.fmtaddr5, OMAP3_ISP_IOMEM_CCDC,
+							ISPCCDC_FMT_ADDR5);
+		isp_reg_writel(refmt.fmtaddr6, OMAP3_ISP_IOMEM_CCDC,
+							ISPCCDC_FMT_ADDR6);
+		isp_reg_writel(refmt.fmtaddr7, OMAP3_ISP_IOMEM_CCDC,
+							ISPCCDC_FMT_ADDR7);
+	}
+	isp_reg_writel(fmtcfg_val, OMAP3_ISP_IOMEM_CCDC, ISPCCDC_FMTCFG);
+}
+EXPORT_SYMBOL(ispccdc_config_reformatter);
+
+/**
+ * ispccdc_enable_reformatter - Enables the Reformatter.
+ * @enable: 0 Disables Reformatter, 1- Enables Data Reformatter
+ **/
+void ispccdc_enable_reformatter(u8 enable)
+{
+	isp_reg_and_or(OMAP3_ISP_IOMEM_CCDC, ISPCCDC_FMTCFG,
+					~ISPCCDC_FMTCFG_FMTEN,
+					enable ? ISPCCDC_FMTCFG_FMTEN : 0);
+	ispccdc_obj.refmt_en = enable;
+}
+EXPORT_SYMBOL(ispccdc_enable_reformatter);
+
+/**
+ * ispccdc_config_culling - Configures the culling parameters.
+ * @cull: Structure containing the vertical culling pattern, and horizontal
+ *        culling pattern for odd and even lines.
+ **/
+void ispccdc_config_culling(struct ispccdc_culling cull)
+{
+	u32 culling_val = 0;
+
+	culling_val |= cull.v_pattern << ISPCCDC_CULLING_CULV_SHIFT;
+	culling_val |= cull.h_even << ISPCCDC_CULLING_CULHEVN_SHIFT;
+	culling_val |= cull.h_odd << ISPCCDC_CULLING_CULHODD_SHIFT;
+
+	isp_reg_writel(culling_val, OMAP3_ISP_IOMEM_CCDC, ISPCCDC_CULLING);
+}
+EXPORT_SYMBOL(ispccdc_config_culling);
+
+/**
+ * ispccdc_enable_lpf - Enables the Low-Pass Filter (LPF).
+ * @enable: 0 Disables LPF, 1 Enables LPF
+ **/
+void ispccdc_enable_lpf(u8 enable)
+{
+	isp_reg_and_or(OMAP3_ISP_IOMEM_CCDC, ISPCCDC_SYN_MODE,
+					~ISPCCDC_SYN_MODE_LPF,
+					enable ? ISPCCDC_SYN_MODE_LPF : 0);
+}
+EXPORT_SYMBOL(ispccdc_enable_lpf);
+
+/**
+ * ispccdc_config_alaw - Configures the input width for A-law.
+ * @ipwidth: Input width for A-law
+ **/
+void ispccdc_config_alaw(enum alaw_ipwidth ipwidth)
+{
+	isp_reg_writel(ipwidth << ISPCCDC_ALAW_GWDI_SHIFT,
+					OMAP3_ISP_IOMEM_CCDC, ISPCCDC_ALAW);
+}
+EXPORT_SYMBOL(ispccdc_config_alaw);
+
+/**
+ * ispccdc_enable_alaw - Enables the A-law compression.
+ * @enable: 0 - Disables A-law, 1 - Enables A-law
+ **/
+void ispccdc_enable_alaw(u8 enable)
+{
+	isp_reg_and_or(OMAP3_ISP_IOMEM_CCDC, ISPCCDC_ALAW,
+					~ISPCCDC_ALAW_CCDTBL,
+					enable ? ISPCCDC_ALAW_CCDTBL : 0);
+}
+EXPORT_SYMBOL(ispccdc_enable_alaw);
+
+/**
+ * ispccdc_config_imgattr - Configures the sensor image specific attributes.
+ * @colptn: Color pattern of the sensor.
+ **/
+void ispccdc_config_imgattr(u32 colptn)
+{
+	isp_reg_writel(colptn, OMAP3_ISP_IOMEM_CCDC, ISPCCDC_COLPTN);
+}
+EXPORT_SYMBOL(ispccdc_config_imgattr);
+
+/**
+ * ispccdc_config_shadow_registers - Programs the shadow registers for CCDC.
+ * Currently nothing to program in shadow, but kept for future use.
+ **/
+void ispccdc_config_shadow_registers(void)
+{
+	return;
+}
+EXPORT_SYMBOL(ispccdc_config_shadow_registers);
+
+/**
+ * ispccdc_try_size - Checks if requested Input/output dimensions are valid
+ * @input_w: input width for the CCDC in number of pixels per line
+ * @input_h: input height for the CCDC in number of lines
+ * @output_w: output width from the CCDC in number of pixels per line
+ * @output_h: output height for the CCDC in number of lines
+ *
+ * Calculates the number of pixels cropped if the reformater is disabled,
+ * Fills up the output width and height variables in the isp_ccdc structure.
+ *
+ * Returns 0 if successful, or -EINVAL if the input width is less than 2 pixels
+ **/
+int ispccdc_try_size(u32 input_w, u32 input_h, u32 *output_w, u32 *output_h)
+{
+	if (input_w < 32 || input_h < 32) {
+		DPRINTK_ISPCCDC("ISP_ERR: CCDC cannot handle input width less"
+				" than 32 pixels or height less than 32\n");
+		return -EINVAL;
+	}
+
+	if (ispccdc_obj.crop_w)
+		*output_w = ispccdc_obj.crop_w;
+	else
+		*output_w = input_w;
+
+	if (ispccdc_obj.crop_h)
+		*output_h = ispccdc_obj.crop_h;
+	else
+		*output_h = input_h;
+
+	if ((!ispccdc_obj.refmt_en) && ((ispccdc_obj.ccdc_outfmt !=
+		CCDC_OTHERS_MEM) && ispccdc_obj.ccdc_outfmt !=
+					CCDC_OTHERS_VP_MEM))
+		*output_h -= 1;
+
+	if ((ispccdc_obj.ccdc_outfmt == CCDC_OTHERS_MEM) ||
+						(ispccdc_obj.ccdc_outfmt ==
+						CCDC_OTHERS_VP_MEM)) {
+		if (*output_w % 16) {
+			*output_w -= (*output_w % 16);
+			*output_w += 16;
+		}
+	}
+
+	ispccdc_obj.ccdcout_w = *output_w;
+	ispccdc_obj.ccdcout_h = *output_h;
+	ispccdc_obj.ccdcin_w = input_w;
+	ispccdc_obj.ccdcin_h = input_h;
+
+	DPRINTK_ISPCCDC("try size: ccdcin_w=%u,ccdcin_h=%u,ccdcout_w=%u,"
+							" ccdcout_h=%u\n",
+							ispccdc_obj.ccdcin_w,
+							ispccdc_obj.ccdcin_h,
+							ispccdc_obj.ccdcout_w,
+							ispccdc_obj.ccdcout_h);
+
+	return 0;
+}
+EXPORT_SYMBOL(ispccdc_try_size);
+
+/**
+ * ispccdc_config_size - Configure the dimensions of the CCDC input/output
+ * @input_w: input width for the CCDC in number of pixels per line
+ * @input_h: input height for the CCDC in number of lines
+ * @output_w: output width from the CCDC in number of pixels per line
+ * @output_h: output height for the CCDC in number of lines
+ *
+ * Configures the appropriate values stored in the isp_ccdc structure to
+ * HORZ/VERT_INFO registers and the VP_OUT depending on whether the image
+ * is stored in memory or given to the another module in the ISP pipeline.
+ *
+ * Returns 0 if successful, or -EINVAL if try_size was not called before to
+ * validate the requested dimensions.
+ **/
+int ispccdc_config_size(u32 input_w, u32 input_h, u32 output_w, u32 output_h)
+{
+	DPRINTK_ISPCCDC("config size: input_w=%u, input_h=%u, output_w=%u,"
+							" output_h=%u\n",
+							input_w, input_h,
+							output_w, output_h);
+	if ((output_w != ispccdc_obj.ccdcout_w) || (output_h !=
+						ispccdc_obj.ccdcout_h)) {
+		DPRINTK_ISPCCDC("ISP_ERR : ispccdc_try_size should"
+					" be called before config size\n");
+		return -EINVAL;
+	}
+
+	if (ispccdc_obj.ccdc_outfmt == CCDC_OTHERS_VP) {
+		isp_reg_writel((ispccdc_obj.ccdcin_woffset <<
+					ISPCCDC_FMT_HORZ_FMTSPH_SHIFT) |
+					(ispccdc_obj.ccdcin_w <<
+					ISPCCDC_FMT_HORZ_FMTLNH_SHIFT),
+					OMAP3_ISP_IOMEM_CCDC,
+					ISPCCDC_FMT_HORZ);
+		isp_reg_writel((ispccdc_obj.ccdcin_hoffset <<
+					ISPCCDC_FMT_VERT_FMTSLV_SHIFT) |
+					(ispccdc_obj.ccdcin_h <<
+					ISPCCDC_FMT_VERT_FMTLNV_SHIFT),
+					OMAP3_ISP_IOMEM_CCDC,
+					ISPCCDC_FMT_VERT);
+		isp_reg_writel((ispccdc_obj.ccdcout_w <<
+					ISPCCDC_VP_OUT_HORZ_NUM_SHIFT) |
+					(ispccdc_obj.ccdcout_h - 1) <<
+					ISPCCDC_VP_OUT_VERT_NUM_SHIFT,
+					OMAP3_ISP_IOMEM_CCDC,
+					ISPCCDC_VP_OUT);
+		isp_reg_writel((((ispccdc_obj.ccdcout_h - 25) &
+					ISPCCDC_VDINT_0_MASK) <<
+					ISPCCDC_VDINT_0_SHIFT) |
+					((50 & ISPCCDC_VDINT_1_MASK) <<
+					ISPCCDC_VDINT_1_SHIFT),
+					OMAP3_ISP_IOMEM_CCDC,
+					ISPCCDC_VDINT);
+
+	} else if (ispccdc_obj.ccdc_outfmt == CCDC_OTHERS_MEM) {
+		isp_reg_writel(0, OMAP3_ISP_IOMEM_CCDC, ISPCCDC_VP_OUT);
+		if (ispccdc_obj.ccdc_inpfmt == CCDC_RAW) {
+			isp_reg_writel(0 << ISPCCDC_HORZ_INFO_SPH_SHIFT
+					| ((ispccdc_obj.ccdcout_w - 1)
+					<< ISPCCDC_HORZ_INFO_NPH_SHIFT),
+					OMAP3_ISP_IOMEM_CCDC,
+					ISPCCDC_HORZ_INFO);
+		} else {
+			isp_reg_writel(0 << ISPCCDC_HORZ_INFO_SPH_SHIFT
+					| ((ispccdc_obj.ccdcout_w - 1)
+					<< ISPCCDC_HORZ_INFO_NPH_SHIFT),
+					OMAP3_ISP_IOMEM_CCDC,
+					ISPCCDC_HORZ_INFO);
+		}
+		isp_reg_writel(0 << ISPCCDC_VERT_START_SLV0_SHIFT,
+							OMAP3_ISP_IOMEM_CCDC,
+							ISPCCDC_VERT_START);
+		isp_reg_writel((ispccdc_obj.ccdcout_h - 1) <<
+						ISPCCDC_VERT_LINES_NLV_SHIFT,
+						OMAP3_ISP_IOMEM_CCDC,
+						ISPCCDC_VERT_LINES);
+
+		ispccdc_config_outlineoffset(ispccdc_obj.ccdcout_w * 2, 0, 0);
+		isp_reg_writel((((ispccdc_obj.ccdcout_h - 2) &
+					ISPCCDC_VDINT_0_MASK) <<
+					ISPCCDC_VDINT_0_SHIFT) |
+					((100 & ISPCCDC_VDINT_1_MASK) <<
+					ISPCCDC_VDINT_1_SHIFT),
+					OMAP3_ISP_IOMEM_CCDC,
+					ISPCCDC_VDINT);
+	} else if (ispccdc_obj.ccdc_outfmt == CCDC_OTHERS_VP_MEM) {
+		isp_reg_writel((0 << ISPCCDC_FMT_HORZ_FMTSPH_SHIFT) |
+					(ispccdc_obj.ccdcin_w <<
+					ISPCCDC_FMT_HORZ_FMTLNH_SHIFT),
+					OMAP3_ISP_IOMEM_CCDC,
+					ISPCCDC_FMT_HORZ);
+		isp_reg_writel((0 << ISPCCDC_FMT_VERT_FMTSLV_SHIFT) |
+					((ispccdc_obj.ccdcin_h) <<
+					ISPCCDC_FMT_VERT_FMTLNV_SHIFT),
+					OMAP3_ISP_IOMEM_CCDC,
+					ISPCCDC_FMT_VERT);
+		isp_reg_writel((ispccdc_obj.ccdcout_w
+					<< ISPCCDC_VP_OUT_HORZ_NUM_SHIFT) |
+					((ispccdc_obj.ccdcout_h - 1) <<
+					ISPCCDC_VP_OUT_VERT_NUM_SHIFT),
+					OMAP3_ISP_IOMEM_CCDC,
+					ISPCCDC_VP_OUT);
+		isp_reg_writel(0 << ISPCCDC_HORZ_INFO_SPH_SHIFT |
+					((ispccdc_obj.ccdcout_w - 1) <<
+					ISPCCDC_HORZ_INFO_NPH_SHIFT),
+					OMAP3_ISP_IOMEM_CCDC,
+					ISPCCDC_HORZ_INFO);
+		isp_reg_writel(0 << ISPCCDC_VERT_START_SLV0_SHIFT,
+					OMAP3_ISP_IOMEM_CCDC,
+					ISPCCDC_VERT_START);
+		isp_reg_writel((ispccdc_obj.ccdcout_h - 1) <<
+					ISPCCDC_VERT_LINES_NLV_SHIFT,
+					OMAP3_ISP_IOMEM_CCDC,
+					ISPCCDC_VERT_LINES);
+		ispccdc_config_outlineoffset(ispccdc_obj.ccdcout_w * 2, 0, 0);
+		isp_reg_writel((((ispccdc_obj.ccdcout_h - 2) &
+					ISPCCDC_VDINT_0_MASK) <<
+					ISPCCDC_VDINT_0_SHIFT) |
+					((100 & ISPCCDC_VDINT_1_MASK) <<
+					ISPCCDC_VDINT_1_SHIFT),
+					OMAP3_ISP_IOMEM_CCDC,
+					ISPCCDC_VDINT);
+	}
+
+	if (is_isplsc_activated()) {
+		if (ispccdc_obj.ccdc_inpfmt == CCDC_RAW) {
+			ispccdc_config_lsc(&lsc_config);
+			ispccdc_load_lsc(lsc_gain_table, lsc_config.size);
+		}
+	}
+
+	return 0;
+}
+EXPORT_SYMBOL(ispccdc_config_size);
+
+/**
+ * ispccdc_config_outlineoffset - Configures the output line offset
+ * @offset: Must be twice the Output width and aligned on 32 byte boundary
+ * @oddeven: Specifies the odd/even line pattern to be chosen to store the
+ *           output.
+ * @numlines: Set the value 0-3 for +1-4lines, 4-7 for -1-4lines.
+ *
+ * - Configures the output line offset when stored in memory
+ * - Sets the odd/even line pattern to store the output
+ *    (EVENEVEN (1), ODDEVEN (2), EVENODD (3), ODDODD (4))
+ * - Configures the number of even and odd line fields in case of rearranging
+ * the lines.
+ *
+ * Returns 0 if successful, or -EINVAL if the offset is not in 32 byte
+ * boundary.
+ **/
+int ispccdc_config_outlineoffset(u32 offset, u8 oddeven, u8 numlines)
+{
+	if ((offset & ISP_32B_BOUNDARY_OFFSET) == offset) {
+		isp_reg_writel((offset & 0xFFFF), OMAP3_ISP_IOMEM_CCDC,
+						ISPCCDC_HSIZE_OFF);
+	} else {
+		DPRINTK_ISPCCDC("ISP_ERR : Offset should be in 32 byte"
+								" boundary");
+		return -EINVAL;
+	}
+
+	isp_reg_and(OMAP3_ISP_IOMEM_CCDC, ISPCCDC_SDOFST,
+						~ISPCCDC_SDOFST_FINV);
+
+	isp_reg_and(OMAP3_ISP_IOMEM_CCDC, ISPCCDC_SDOFST,
+						~ISPCCDC_SDOFST_FOFST_4L);
+
+	switch (oddeven) {
+	case EVENEVEN:
+		isp_reg_or(OMAP3_ISP_IOMEM_CCDC, ISPCCDC_SDOFST,
+			(numlines & 0x7) << ISPCCDC_SDOFST_LOFST0_SHIFT);
+		break;
+	case ODDEVEN:
+		isp_reg_or(OMAP3_ISP_IOMEM_CCDC, ISPCCDC_SDOFST,
+			(numlines & 0x7) << ISPCCDC_SDOFST_LOFST1_SHIFT);
+		break;
+	case EVENODD:
+		isp_reg_or(OMAP3_ISP_IOMEM_CCDC, ISPCCDC_SDOFST,
+			(numlines & 0x7) << ISPCCDC_SDOFST_LOFST2_SHIFT);
+		break;
+	case ODDODD:
+		isp_reg_or(OMAP3_ISP_IOMEM_CCDC, ISPCCDC_SDOFST,
+			(numlines & 0x7) << ISPCCDC_SDOFST_LOFST3_SHIFT);
+		break;
+	default:
+		break;
+	}
+	return 0;
+}
+EXPORT_SYMBOL(ispccdc_config_outlineoffset);
+
+/**
+ * ispccdc_set_outaddr - Sets the memory address where the output will be saved
+ * @addr: 32-bit memory address aligned on 32 byte boundary.
+ *
+ * Sets the memory address where the output will be saved.
+ *
+ * Returns 0 if successful, or -EINVAL if the address is not in the 32 byte
+ * boundary.
+ **/
+int ispccdc_set_outaddr(u32 addr)
+{
+	if ((addr & ISP_32B_BOUNDARY_BUF) == addr) {
+		isp_reg_writel(addr, OMAP3_ISP_IOMEM_CCDC, ISPCCDC_SDR_ADDR);
+		return 0;
+	} else {
+		DPRINTK_ISPCCDC("ISP_ERR : Address should be in 32 byte"
+								" boundary");
+		return -EINVAL;
+	}
+
+}
+EXPORT_SYMBOL(ispccdc_set_outaddr);
+
+/**
+ * ispccdc_enable - Enables the CCDC module.
+ * @enable: 0 Disables CCDC, 1 Enables CCDC
+ *
+ * Client should configure all the sub modules in CCDC before this.
+ **/
+void ispccdc_enable(u8 enable)
+{
+	if (ccdc_use_lsc && !ispccdc_obj.lsc_en &&
+				(ispccdc_obj.ccdc_inpfmt == CCDC_RAW) &&
+				enable)
+		ispccdc_enable_lsc(1);
+
+	isp_reg_and_or(OMAP3_ISP_IOMEM_CCDC, ISPCCDC_PCR, ~ISPCCDC_PCR_EN,
+						enable ? ISPCCDC_PCR_EN : 0);
+}
+EXPORT_SYMBOL(ispccdc_enable);
+
+/*
+ * Returns zero if the CCDC is idle and the image has been written to
+ * memory, too.
+ */
+int ispccdc_sbl_busy(void)
+{
+	return ispccdc_busy()
+		| (isp_reg_readl(OMAP3_ISP_IOMEM_SBL, ISPSBL_CCDC_WR_0) &
+				ISPSBL_CCDC_WR_0_DATA_READY)
+		| (isp_reg_readl(OMAP3_ISP_IOMEM_SBL, ISPSBL_CCDC_WR_1) &
+				ISPSBL_CCDC_WR_0_DATA_READY)
+		| (isp_reg_readl(OMAP3_ISP_IOMEM_SBL, ISPSBL_CCDC_WR_2) &
+				ISPSBL_CCDC_WR_0_DATA_READY)
+		| (isp_reg_readl(OMAP3_ISP_IOMEM_SBL, ISPSBL_CCDC_WR_3) &
+				ISPSBL_CCDC_WR_0_DATA_READY);
+}
+EXPORT_SYMBOL(ispccdc_sbl_busy);
+
+/**
+ * ispccdc_busy - Gets busy state of the CCDC.
+ **/
+int ispccdc_busy(void)
+{
+	return isp_reg_readl(OMAP3_ISP_IOMEM_CCDC, ISPCCDC_PCR) &
+							ISPCCDC_PCR_BUSY;
+}
+EXPORT_SYMBOL(ispccdc_busy);
+
+/**
+ * ispccdc_save_context - Saves the values of the CCDC module registers
+ **/
+void ispccdc_save_context(void)
+{
+	DPRINTK_ISPCCDC("Saving context\n");
+	isp_save_context(ispccdc_reg_list);
+}
+EXPORT_SYMBOL(ispccdc_save_context);
+
+/**
+ * ispccdc_restore_context - Restores the values of the CCDC module registers
+ **/
+void ispccdc_restore_context(void)
+{
+	DPRINTK_ISPCCDC("Restoring context\n");
+	isp_restore_context(ispccdc_reg_list);
+}
+EXPORT_SYMBOL(ispccdc_restore_context);
+
+/**
+ * ispccdc_print_status - Prints the values of the CCDC Module registers
+ *
+ * Also prints other debug information stored in the CCDC module.
+ **/
+void ispccdc_print_status(void)
+{
+	if (!is_ispccdc_debug_enabled())
+		return;
+
+	DPRINTK_ISPCCDC("Module in use =%d\n", ispccdc_obj.ccdc_inuse);
+	DPRINTK_ISPCCDC("Accepted CCDC Input (width = %d,Height = %d)\n",
+							ispccdc_obj.ccdcin_w,
+							ispccdc_obj.ccdcin_h);
+	DPRINTK_ISPCCDC("Accepted CCDC Output (width = %d,Height = %d)\n",
+							ispccdc_obj.ccdcout_w,
+							ispccdc_obj.ccdcout_h);
+	DPRINTK_ISPCCDC("###CCDC PCR=0x%x\n",
+			isp_reg_readl(OMAP3_ISP_IOMEM_CCDC, ISPCCDC_PCR));
+	DPRINTK_ISPCCDC("ISP_CTRL =0x%x\n",
+			isp_reg_readl(OMAP3_ISP_IOMEM_MAIN, ISP_CTRL));
+	switch (ispccdc_obj.ccdc_inpfmt) {
+	case CCDC_RAW:
+		DPRINTK_ISPCCDC("ccdc input format is CCDC_RAW\n");
+		break;
+	case CCDC_YUV_SYNC:
+		DPRINTK_ISPCCDC("ccdc input format is CCDC_YUV_SYNC\n");
+		break;
+	case CCDC_YUV_BT:
+		DPRINTK_ISPCCDC("ccdc input format is CCDC_YUV_BT\n");
+		break;
+	}
+
+	switch (ispccdc_obj.ccdc_outfmt) {
+	case CCDC_OTHERS_VP:
+		DPRINTK_ISPCCDC("ccdc output format is CCDC_OTHERS_VP\n");
+		break;
+	case CCDC_OTHERS_MEM:
+		DPRINTK_ISPCCDC("ccdc output format is CCDC_OTHERS_MEM\n");
+		break;
+	case CCDC_YUV_RSZ:
+		DPRINTK_ISPCCDC("ccdc output format is CCDC_YUV_RSZ\n");
+		break;
+	}
+
+	DPRINTK_ISPCCDC("###ISP_CTRL in ccdc =0x%x\n",
+		isp_reg_readl(OMAP3_ISP_IOMEM_MAIN, ISP_CTRL));
+	DPRINTK_ISPCCDC("###ISP_IRQ0ENABLE in ccdc =0x%x\n",
+		isp_reg_readl(OMAP3_ISP_IOMEM_MAIN, ISP_IRQ0ENABLE));
+	DPRINTK_ISPCCDC("###ISP_IRQ0STATUS in ccdc =0x%x\n",
+		isp_reg_readl(OMAP3_ISP_IOMEM_MAIN, ISP_IRQ0STATUS));
+	DPRINTK_ISPCCDC("###CCDC SYN_MODE=0x%x\n",
+		isp_reg_readl(OMAP3_ISP_IOMEM_CCDC, ISPCCDC_SYN_MODE));
+	DPRINTK_ISPCCDC("###CCDC HORZ_INFO=0x%x\n",
+		isp_reg_readl(OMAP3_ISP_IOMEM_CCDC, ISPCCDC_HORZ_INFO));
+	DPRINTK_ISPCCDC("###CCDC VERT_START=0x%x\n",
+		isp_reg_readl(OMAP3_ISP_IOMEM_CCDC, ISPCCDC_VERT_START));
+	DPRINTK_ISPCCDC("###CCDC VERT_LINES=0x%x\n",
+		isp_reg_readl(OMAP3_ISP_IOMEM_CCDC, ISPCCDC_VERT_LINES));
+	DPRINTK_ISPCCDC("###CCDC CULLING=0x%x\n",
+		isp_reg_readl(OMAP3_ISP_IOMEM_CCDC, ISPCCDC_CULLING));
+	DPRINTK_ISPCCDC("###CCDC HSIZE_OFF=0x%x\n",
+		isp_reg_readl(OMAP3_ISP_IOMEM_CCDC, ISPCCDC_HSIZE_OFF));
+	DPRINTK_ISPCCDC("###CCDC SDOFST=0x%x\n",
+		isp_reg_readl(OMAP3_ISP_IOMEM_CCDC, ISPCCDC_SDOFST));
+	DPRINTK_ISPCCDC("###CCDC SDR_ADDR=0x%x\n",
+		isp_reg_readl(OMAP3_ISP_IOMEM_CCDC, ISPCCDC_SDR_ADDR));
+	DPRINTK_ISPCCDC("###CCDC CLAMP=0x%x\n",
+		isp_reg_readl(OMAP3_ISP_IOMEM_CCDC, ISPCCDC_CLAMP));
+	DPRINTK_ISPCCDC("###CCDC COLPTN=0x%x\n",
+		isp_reg_readl(OMAP3_ISP_IOMEM_CCDC, ISPCCDC_COLPTN));
+	DPRINTK_ISPCCDC("###CCDC CFG=0x%x\n",
+		isp_reg_readl(OMAP3_ISP_IOMEM_CCDC, ISPCCDC_CFG));
+	DPRINTK_ISPCCDC("###CCDC VP_OUT=0x%x\n",
+		isp_reg_readl(OMAP3_ISP_IOMEM_CCDC, ISPCCDC_VP_OUT));
+	DPRINTK_ISPCCDC("###CCDC_SDR_ADDR= 0x%x\n",
+		isp_reg_readl(OMAP3_ISP_IOMEM_CCDC, ISPCCDC_SDR_ADDR));
+	DPRINTK_ISPCCDC("###CCDC FMTCFG=0x%x\n",
+		isp_reg_readl(OMAP3_ISP_IOMEM_CCDC, ISPCCDC_FMTCFG));
+	DPRINTK_ISPCCDC("###CCDC FMT_HORZ=0x%x\n",
+		isp_reg_readl(OMAP3_ISP_IOMEM_CCDC, ISPCCDC_FMT_HORZ));
+	DPRINTK_ISPCCDC("###CCDC FMT_VERT=0x%x\n",
+		isp_reg_readl(OMAP3_ISP_IOMEM_CCDC, ISPCCDC_FMT_VERT));
+	DPRINTK_ISPCCDC("###CCDC LSC_CONFIG=0x%x\n",
+		isp_reg_readl(OMAP3_ISP_IOMEM_CCDC, ISPCCDC_LSC_CONFIG));
+	DPRINTK_ISPCCDC("###CCDC LSC_INIT=0x%x\n",
+		isp_reg_readl(OMAP3_ISP_IOMEM_CCDC, ISPCCDC_LSC_INITIAL));
+	DPRINTK_ISPCCDC("###CCDC LSC_TABLE BASE=0x%x\n",
+		isp_reg_readl(OMAP3_ISP_IOMEM_CCDC, ISPCCDC_LSC_TABLE_BASE));
+	DPRINTK_ISPCCDC("###CCDC LSC TABLE OFFSET=0x%x\n",
+		isp_reg_readl(OMAP3_ISP_IOMEM_CCDC, ISPCCDC_LSC_TABLE_OFFSET));
+}
+EXPORT_SYMBOL(ispccdc_print_status);
+
+/**
+ * isp_ccdc_init - CCDC module initialization.
+ *
+ * Always returns 0
+ **/
+int __init isp_ccdc_init(void)
+{
+	ispccdc_obj.ccdc_inuse = 0;
+	ispccdc_config_crop(0, 0, 0, 0);
+	mutex_init(&ispccdc_obj.mutexlock);
+
+	if (is_isplsc_activated()) {
+		lsc_gain_table_tmp = kmalloc(LSC_TABLE_INIT_SIZE, GFP_KERNEL |
+								GFP_DMA);
+		memset(lsc_gain_table_tmp, 0x40, LSC_TABLE_INIT_SIZE);
+		lsc_config.initial_x = 0;
+		lsc_config.initial_y = 0;
+		lsc_config.gain_mode_n = 0x6;
+		lsc_config.gain_mode_m = 0x6;
+		lsc_config.gain_format = 0x4;
+		lsc_config.offset = 0x60;
+		lsc_config.size = LSC_TABLE_INIT_SIZE;
+		ccdc_use_lsc = 1;
+	}
+
+	return 0;
+}
+
+/**
+ * isp_ccdc_cleanup - CCDC module cleanup.
+ **/
+void isp_ccdc_cleanup(void)
+{
+	if (is_isplsc_activated()) {
+		ispccdc_free_lsc();
+		kfree(lsc_gain_table_tmp);
+	}
+
+	if (fpc_table_add_m != 0) {
+		ispmmu_kunmap(fpc_table_add_m);
+		kfree(fpc_table_add);
+	}
+}
diff --git a/drivers/media/video/isp/ispccdc.h b/drivers/media/video/isp/ispccdc.h
new file mode 100644
index 0000000..c1403cf
--- /dev/null
+++ b/drivers/media/video/isp/ispccdc.h
@@ -0,0 +1,203 @@
+/*
+ * ispccdc.h
+ *
+ * Driver header file for CCDC module in TI's OMAP3 Camera ISP
+ *
+ * Copyright (C) 2009 Texas Instruments, Inc.
+ *
+ * Contributors:
+ *	Senthilvadivu Guruswamy <svadivu@ti.com>
+ *	Pallavi Kulkarni <p-kulkarni@ti.com>
+ *	Sergio Aguirre <saaguirre@ti.com>
+ *
+ * This package 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.
+ *
+ * THIS PACKAGE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
+ * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
+ */
+
+#ifndef OMAP_ISP_CCDC_H
+#define OMAP_ISP_CCDC_H
+
+#include <mach/isp_user.h>
+
+#define is_isplsc_activated()		1
+
+/* Enumeration constants for CCDC input output format */
+enum ccdc_input {
+	CCDC_RAW,
+	CCDC_YUV_SYNC,
+	CCDC_YUV_BT,
+	CCDC_OTHERS
+};
+
+enum ccdc_output {
+	CCDC_YUV_RSZ,
+	CCDC_YUV_MEM_RSZ,
+	CCDC_OTHERS_VP,
+	CCDC_OTHERS_MEM,
+	CCDC_OTHERS_VP_MEM
+};
+
+/* Enumeration constants for the sync interface parameters */
+enum inpmode {
+	RAW,
+	YUV16,
+	YUV8
+};
+enum datasize {
+	DAT8,
+	DAT10,
+	DAT11,
+	DAT12
+};
+
+
+/**
+ * struct ispccdc_syncif - Structure for Sync Interface between sensor and CCDC
+ * @ccdc_mastermode: Master mode. 1 - Master, 0 - Slave.
+ * @fldstat: Field state. 0 - Odd Field, 1 - Even Field.
+ * @ipmod: Input mode.
+ * @datsz: Data size.
+ * @fldmode: 0 - Progressive, 1 - Interlaced.
+ * @datapol: 0 - Positive, 1 - Negative.
+ * @fldpol: 0 - Positive, 1 - Negative.
+ * @hdpol: 0 - Positive, 1 - Negative.
+ * @vdpol: 0 - Positive, 1 - Negative.
+ * @fldout: 0 - Input, 1 - Output.
+ * @hs_width: Width of the Horizontal Sync pulse, used for HS/VS Output.
+ * @vs_width: Width of the Vertical Sync pulse, used for HS/VS Output.
+ * @ppln: Number of pixels per line, used for HS/VS Output.
+ * @hlprf: Number of half lines per frame, used for HS/VS Output.
+ * @bt_r656_en: 1 - Enable ITU-R BT656 mode, 0 - Sync mode.
+ */
+struct ispccdc_syncif {
+	u8 ccdc_mastermode;
+	u8 fldstat;
+	enum inpmode ipmod;
+	enum datasize datsz;
+	u8 fldmode;
+	u8 datapol;
+	u8 fldpol;
+	u8 hdpol;
+	u8 vdpol;
+	u8 fldout;
+	u8 hs_width;
+	u8 vs_width;
+	u8 ppln;
+	u8 hlprf;
+	u8 bt_r656_en;
+};
+
+/**
+ * ispccdc_refmt - Structure for Reformatter parameters
+ * @lnalt: Line alternating mode enable. 0 - Enable, 1 - Disable.
+ * @lnum: Number of output lines from 1 input line. 1 to 4 lines.
+ * @plen_even: Number of program entries in even line minus 1.
+ * @plen_odd: Number of program entries in odd line minus 1.
+ * @prgeven0: Program entries 0-7 for even lines register
+ * @prgeven1: Program entries 8-15 for even lines register
+ * @prgodd0: Program entries 0-7 for odd lines register
+ * @prgodd1: Program entries 8-15 for odd lines register
+ * @fmtaddr0: Output line in which the original pixel is to be placed
+ * @fmtaddr1: Output line in which the original pixel is to be placed
+ * @fmtaddr2: Output line in which the original pixel is to be placed
+ * @fmtaddr3: Output line in which the original pixel is to be placed
+ * @fmtaddr4: Output line in which the original pixel is to be placed
+ * @fmtaddr5: Output line in which the original pixel is to be placed
+ * @fmtaddr6: Output line in which the original pixel is to be placed
+ * @fmtaddr7: Output line in which the original pixel is to be placed
+ */
+struct ispccdc_refmt {
+	u8 lnalt;
+	u8 lnum;
+	u8 plen_even;
+	u8 plen_odd;
+	u32 prgeven0;
+	u32 prgeven1;
+	u32 prgodd0;
+	u32 prgodd1;
+	u32 fmtaddr0;
+	u32 fmtaddr1;
+	u32 fmtaddr2;
+	u32 fmtaddr3;
+	u32 fmtaddr4;
+	u32 fmtaddr5;
+	u32 fmtaddr6;
+	u32 fmtaddr7;
+};
+
+int ispccdc_request(void);
+
+int ispccdc_free(void);
+
+int ispccdc_config_datapath(enum ccdc_input input, enum ccdc_output output);
+
+void ispccdc_config_crop(u32 left, u32 top, u32 height, u32 width);
+
+void ispccdc_config_sync_if(struct ispccdc_syncif syncif);
+
+int ispccdc_config_black_clamp(struct ispccdc_bclamp bclamp);
+
+void ispccdc_enable_black_clamp(u8 enable);
+
+int ispccdc_config_fpc(struct ispccdc_fpc fpc);
+
+void ispccdc_enable_fpc(u8 enable);
+
+void ispccdc_config_black_comp(struct ispccdc_blcomp blcomp);
+
+void ispccdc_config_vp(struct ispccdc_vp vp);
+
+void ispccdc_enable_vp(u8 enable);
+
+void ispccdc_config_reformatter(struct ispccdc_refmt refmt);
+
+void ispccdc_enable_reformatter(u8 enable);
+
+void ispccdc_config_culling(struct ispccdc_culling culling);
+
+void ispccdc_enable_lpf(u8 enable);
+
+void ispccdc_config_alaw(enum alaw_ipwidth ipwidth);
+
+void ispccdc_enable_alaw(u8 enable);
+
+int ispccdc_load_lsc(u8 *table_addr, u32 table_size);
+
+void ispccdc_config_lsc(struct ispccdc_lsc_config *lsc_cfg);
+
+void ispccdc_enable_lsc(u8 enable);
+
+void ispccdc_config_imgattr(u32 colptn);
+
+void ispccdc_config_shadow_registers(void);
+
+int ispccdc_try_size(u32 input_w, u32 input_h, u32 *output_w, u32 *output_h);
+
+int ispccdc_config_size(u32 input_w, u32 input_h, u32 output_w, u32 output_h);
+
+int ispccdc_config_outlineoffset(u32 offset, u8 oddeven, u8 numlines);
+
+int ispccdc_set_outaddr(u32 addr);
+
+void ispccdc_enable(u8 enable);
+
+int ispccdc_sbl_busy(void);
+
+int ispccdc_busy(void);
+
+void ispccdc_save_context(void);
+
+void ispccdc_restore_context(void);
+
+void ispccdc_print_status(void);
+
+int omap34xx_isp_ccdc_config(void *userspace_add);
+
+void ispccdc_set_wenlog(u32 wenlog);
+
+#endif		/* OMAP_ISP_CCDC_H */
-- 
1.5.6.5