|
This adds the OMAP ISP Back end modules to the kernel. Includes:
* ISP Preview Driver
* ISP Resizer Driver
Signed-off-by: Sergio Aguirre <saaguirre@xxxxxx
---
drivers/media/video/isp/isppreview.c | 1957 ++++++++++++++++++++++++++++++++++
drivers/media/video/isp/isppreview.h | 356 ++++++
drivers/media/video/isp/ispresizer.c | 914 ++++++++++++++++
drivers/media/video/isp/ispresizer.h | 153 +++
4 files changed, 3380 insertions(+), 0 deletions(-)
create mode 100644 drivers/media/video/isp/isppreview.c
create mode 100644 drivers/media/video/isp/isppreview.h
create mode 100644 drivers/media/video/isp/ispresizer.c
create mode 100644 drivers/media/video/isp/ispresizer.h
diff --git a/drivers/media/video/isp/isppreview.c b/drivers/media/video/isp/isppreview.c
new file mode 100644
index 0000000..33dfab1
--- /dev/null
+++ b/drivers/media/video/isp/isppreview.c
@@ -0,0 +1,1957 @@
+/*
+ * drivers/media/video/isp/isppreview.c
+ *
+ * Driver Library for Preview module in TIs OMAP3 Camera ISP
+ *
+ * Copyright (C) 2008 Texas Instruments, Inc.
+ *
+ * Contributors:
+ * Senthilvadivu Guruswamy <svadivu@xxxxxx
+ * Pallavi Kulkarni <p-kulkarni@xxxxxx
+ *
+ * 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/io.h
+#include <linux/errno.h
+#include <linux/mutex.h
+#include <linux/module.h
+#include <linux/types.h
+#include <linux/uaccess.h
+
+#include "isp.h"
+#include "ispreg.h"
+#include "isppreview.h"
+
+static struct ispprev_nf prev_nf_t;
+static struct ispprev_csc prev_csc_t;
+static struct prev_params *params;
+static int RG_update, GG_update, BG_update, NF_enable, NF_update;
+static int CSC_update;
+
+/* Structure for saving/restoring preview module registers */
+static struct isp_reg ispprev_reg_list[] = {
+ {OMAP3_ISP_IOMEM_PREV, ISPPRV_HORZ_INFO, 0x0000},
+ {OMAP3_ISP_IOMEM_PREV, ISPPRV_VERT_INFO, 0x0000},
+ {OMAP3_ISP_IOMEM_PREV, ISPPRV_RSDR_ADDR, 0x0000},
+ {OMAP3_ISP_IOMEM_PREV, ISPPRV_RADR_OFFSET, 0x0000},
+ {OMAP3_ISP_IOMEM_PREV, ISPPRV_DSDR_ADDR, 0x0000},
+ {OMAP3_ISP_IOMEM_PREV, ISPPRV_DRKF_OFFSET, 0x0000},
+ {OMAP3_ISP_IOMEM_PREV, ISPPRV_WSDR_ADDR, 0x0000},
+ {OMAP3_ISP_IOMEM_PREV, ISPPRV_WADD_OFFSET, 0x0000},
+ {OMAP3_ISP_IOMEM_PREV, ISPPRV_AVE, 0x0000},
+ {OMAP3_ISP_IOMEM_PREV, ISPPRV_HMED, 0x0000},
+ {OMAP3_ISP_IOMEM_PREV, ISPPRV_NF, 0x0000},
+ {OMAP3_ISP_IOMEM_PREV, ISPPRV_WB_DGAIN, 0x0000},
+ {OMAP3_ISP_IOMEM_PREV, ISPPRV_WBGAIN, 0x0000},
+ {OMAP3_ISP_IOMEM_PREV, ISPPRV_WBSEL, 0x0000},
+ {OMAP3_ISP_IOMEM_PREV, ISPPRV_CFA, 0x0000},
+ {OMAP3_ISP_IOMEM_PREV, ISPPRV_BLKADJOFF, 0x0000},
+ {OMAP3_ISP_IOMEM_PREV, ISPPRV_RGB_MAT1, 0x0000},
+ {OMAP3_ISP_IOMEM_PREV, ISPPRV_RGB_MAT2, 0x0000},
+ {OMAP3_ISP_IOMEM_PREV, ISPPRV_RGB_MAT3, 0x0000},
+ {OMAP3_ISP_IOMEM_PREV, ISPPRV_RGB_MAT4, 0x0000},
+ {OMAP3_ISP_IOMEM_PREV, ISPPRV_RGB_MAT5, 0x0000},
+ {OMAP3_ISP_IOMEM_PREV, ISPPRV_RGB_OFF1, 0x0000},
+ {OMAP3_ISP_IOMEM_PREV, ISPPRV_RGB_OFF2, 0x0000},
+ {OMAP3_ISP_IOMEM_PREV, ISPPRV_CSC0, 0x0000},
+ {OMAP3_ISP_IOMEM_PREV, ISPPRV_CSC1, 0x0000},
+ {OMAP3_ISP_IOMEM_PREV, ISPPRV_CSC2, 0x0000},
+ {OMAP3_ISP_IOMEM_PREV, ISPPRV_CSC_OFFSET, 0x0000},
+ {OMAP3_ISP_IOMEM_PREV, ISPPRV_CNT_BRT, 0x0000},
+ {OMAP3_ISP_IOMEM_PREV, ISPPRV_CSUP, 0x0000},
+ {OMAP3_ISP_IOMEM_PREV, ISPPRV_SETUP_YC, 0x0000},
+ {OMAP3_ISP_IOMEM_PREV, ISPPRV_CDC_THR0, 0x0000},
+ {OMAP3_ISP_IOMEM_PREV, ISPPRV_CDC_THR1, 0x0000},
+ {OMAP3_ISP_IOMEM_PREV, ISPPRV_CDC_THR2, 0x0000},
+ {OMAP3_ISP_IOMEM_PREV, ISPPRV_CDC_THR3, 0x0000},
+ {OMAP3_ISP_IOMEM_PREV, ISPPRV_PCR, 0x0000},
+ {0, ISP_TOK_TERM, 0x0000}
+};
+
+
+/* Default values in Office Flourescent Light for RGBtoRGB Blending */
+static struct ispprev_rgbtorgb flr_rgb2rgb = {
+ { /* RGB-RGB Matrix */
+ {0x01E2, 0x0F30, 0x0FEE},
+ {0x0F9B, 0x01AC, 0x0FB9},
+ {0x0FE0, 0x0EC0, 0x0260}
+ }, /* RGB Offset */
+ {0x0000, 0x0000, 0x0000}
+};
+
+/* Default values in Office Flourescent Light for RGB to YUV Conversion*/
+static struct ispprev_csc flr_prev_csc[] = {
+ {
+ { /* CSC Coef Matrix */
+ {66, 129, 25},
+ {-38, -75, 112},
+ {112, -94 , -18}
+ }, /* CSC Offset */
+ {0x0, 0x0, 0x0}
+ },
+ {
+ { /* CSC Coef Matrix Sepia */
+ {19, 38, 7},
+ {0, 0, 0},
+ {0, 0, 0}
+ }, /* CSC Offset */
+ {0x0, 0xE7, 0x14}
+ },
+ {
+ { /* CSC Coef Matrix BW */
+ {66, 129, 25},
+ {0, 0, 0},
+ {0, 0, 0}
+ }, /* CSC Offset */
+ {0x0, 0x0, 0x0}
+ }
+};
+
+
+/* Default values in Office Flourescent Light for CFA Gradient*/
+#define FLR_CFA_GRADTHRS_HORZ 0x28
+#define FLR_CFA_GRADTHRS_VERT 0x28
+
+/* Default values in Office Flourescent Light for Chroma Suppression*/
+#define FLR_CSUP_GAIN 0x0D
+#define FLR_CSUP_THRES 0xEB
+
+/* Default values in Office Flourescent Light for Noise Filter*/
+#define FLR_NF_STRGTH 0x03
+
+/* Default values in Office Flourescent Light for White Balance*/
+#define FLR_WBAL_DGAIN 0x100
+#define FLR_WBAL_COEF0 0x68
+#define FLR_WBAL_COEF1 0x5c
+#define FLR_WBAL_COEF2 0x5c
+#define FLR_WBAL_COEF3 0x94
+
+#define FLR_WBAL_COEF0_ES1 0x23
+#define FLR_WBAL_COEF1_ES1 0x20
+#define FLR_WBAL_COEF2_ES1 0x20
+#define FLR_WBAL_COEF3_ES1 0x39
+
+/* Default values in Office Flourescent Light for Black Adjustment*/
+#define FLR_BLKADJ_BLUE 0x0
+#define FLR_BLKADJ_GREEN 0x0
+#define FLR_BLKADJ_RED 0x0
+
+static int update_color_matrix;
+
+/**
+ * struct isp_prev - Structure for storing ISP Preview module information
+ * @prev_inuse: Flag to determine if CCDC has been reserved or not (0 or 1).
+ * @prevout_w: Preview output width.
+ * @prevout_h: Preview output height.
+ * @previn_w: Preview input width.
+ * @previn_h: Preview input height.
+ * @prev_inpfmt: Preview input format.
+ * @prev_outfmt: Preview output format.
+ * @hmed_en: Horizontal median filter enable.
+ * @nf_en: Noise filter enable.
+ * @dcor_en: Defect correction enable.
+ * @cfa_en: Color Filter Array (CFA) interpolation enable.
+ * @csup_en: Chrominance suppression enable.
+ * @yenh_en: Luma enhancement enable.
+ * @fmtavg: Number of horizontal pixels to average in input formatter. The
+ * input width should be a multiple of this number.
+ * @brightness: Brightness in preview module.
+ * @contrast: Contrast in preview module.
+ * @color: Color effect in preview module.
+ * @cfafmt: Color Filter Array (CFA) Format.
+ * @ispprev_mutex: Mutex for isp preview.
+ *
+ * This structure is used to store the OMAP ISP Preview module Information.
+ */
+static struct isp_prev {
+ u8 prev_inuse;
+ u32 prevout_w;
+ u32 prevout_h;
+ u32 previn_w;
+ u32 previn_h;
+ enum preview_input prev_inpfmt;
+ enum preview_output prev_outfmt;
+ u8 hmed_en;
+ u8 nf_en;
+ u8 dcor_en;
+ u8 cfa_en;
+ u8 csup_en;
+ u8 yenh_en;
+ u8 fmtavg;
+ u8 brightness;
+ u8 contrast;
+ int stream_on;
+ enum preview_color_effect color;
+ enum cfa_fmt cfafmt;
+ struct mutex ispprev_mutex; /* For checking/modifying prev_inuse */
+ spinlock_t ispprev_lock;
+ u32 sph;
+ u32 slv;
+} ispprev_obj;
+
+/* Saved parameters */
+struct prev_params *prev_config_params;
+
+/*
+ * Coeficient Tables for the submodules in Preview.
+ * Array is initialised with the values from.the tables text file.
+ */
+
+/*
+ * CFA Filter Coefficient Table
+ *
+ */
+static u32 cfa_coef_table[] = {
+#include "cfa_coef_table.h"
+};
+
+/*
+ * Gamma Correction Table - Red
+ */
+static u32 redgamma_table[] = {
+#include "redgamma_table.h"
+};
+
+/*
+ * Gamma Correction Table - Green
+ */
+static u32 greengamma_table[] = {
+#include "greengamma_table.h"
+};
+
+/*
+ * Gamma Correction Table - Blue
+ */
+static u32 bluegamma_table[] = {
+#include "bluegamma_table.h"
+};
+
+/*
+ * Noise Filter Threshold table
+ */
+static u32 noise_filter_table[] = {
+#include "noise_filter_table.h"
+};
+
+/*
+ * Luminance Enhancement Table
+ */
+static u32 luma_enhance_table[] = {
+#include "luma_enhance_table.h"
+};
+
+/**
+ * omap34xx_isp_preview_config - Abstraction layer Preview configuration.
+ * @userspace_add: Pointer from Userspace to structure with flags and data to
+ * update.
+ **/
+int omap34xx_isp_preview_config(void *userspace_add)
+{
+ struct ispprev_hmed prev_hmed_t;
+ struct ispprev_cfa prev_cfa_t;
+ struct ispprev_csup csup_t;
+ struct ispprev_wbal prev_wbal_t;
+ struct ispprev_blkadj prev_blkadj_t;
+ struct ispprev_rgbtorgb rgb2rgb_t;
+ struct ispprev_yclimit yclimit_t;
+ struct ispprev_dcor prev_dcor_t;
+ struct ispprv_update_config *preview_struct;
+ struct isptables_update isp_table_update;
+ int yen_t[128];
+
+ if (userspace_add == NULL)
+ return -EINVAL;
+
+ preview_struct = (struct ispprv_update_config *)userspace_add;
+
+ if (ISP_ABS_PREV_LUMAENH & preview_struct- flag) {
+ if (ISP_ABS_PREV_LUMAENH & preview_struct- update) {
+ if (copy_from_user(yen_t, preview_struct- yen,
+ sizeof(yen_t)))
+ goto err_copy_from_user;
+ isppreview_config_luma_enhancement(yen_t);
+ }
+ params- features |= PREV_LUMA_ENHANCE;
+ } else if (ISP_ABS_PREV_LUMAENH & preview_struct- update)
+ params- features &= ~PREV_LUMA_ENHANCE;
+
+ if (ISP_ABS_PREV_INVALAW & preview_struct- flag) {
+ isppreview_enable_invalaw(1);
+ params- features |= PREV_INVERSE_ALAW;
+ } else {
+ isppreview_enable_invalaw(0);
+ params- features &= ~PREV_INVERSE_ALAW;
+ }
+
+ if (ISP_ABS_PREV_HRZ_MED & preview_struct- flag) {
+ if (ISP_ABS_PREV_HRZ_MED & preview_struct- update) {
+ if (copy_from_user(&prev_hmed_t,
+ (struct ispprev_hmed *)
+ preview_struct- prev_hmed,
+ sizeof(struct ispprev_hmed)))
+ goto err_copy_from_user;
+ isppreview_config_hmed(prev_hmed_t);
+ }
+ isppreview_enable_hmed(1);
+ params- features |= PREV_HORZ_MEDIAN_FILTER;
+ } else if (ISP_ABS_PREV_HRZ_MED & preview_struct- update) {
+ isppreview_enable_hmed(0);
+ params- features &= ~PREV_HORZ_MEDIAN_FILTER;
+ }
+
+ if (ISP_ABS_PREV_CFA & preview_struct- flag) {
+ if (ISP_ABS_PREV_CFA & preview_struct- update) {
+ if (copy_from_user(&prev_cfa_t,
+ (struct ispprev_cfa *)
+ preview_struct- prev_cfa,
+ sizeof(struct ispprev_cfa)))
+ goto err_copy_from_user;
+
+ isppreview_config_cfa(prev_cfa_t);
+ }
+ isppreview_enable_cfa(1);
+ params- features |= PREV_CFA;
+ } else if (ISP_ABS_PREV_CFA & preview_struct- update) {
+ isppreview_enable_cfa(0);
+ params- features &= ~PREV_CFA;
+ }
+
+ if (ISP_ABS_PREV_CHROMA_SUPP & preview_struct- flag) {
+ if (ISP_ABS_PREV_CHROMA_SUPP & preview_struct- update) {
+ if (copy_from_user(&csup_t,
+ (struct ispprev_csup *)
+ preview_struct- csup,
+ sizeof(struct ispprev_csup)))
+ goto err_copy_from_user;
+ isppreview_config_chroma_suppression(csup_t);
+ }
+ isppreview_enable_chroma_suppression(1);
+ params- features |= PREV_CHROMA_SUPPRESS;
+ } else if (ISP_ABS_PREV_CHROMA_SUPP & preview_struct- update) {
+ isppreview_enable_chroma_suppression(0);
+ params- features &= ~PREV_CHROMA_SUPPRESS;
+ }
+
+ if (ISP_ABS_PREV_WB & preview_struct- update) {
+ if (copy_from_user(&prev_wbal_t, (struct ispprev_wbal *)
+ preview_struct- prev_wbal,
+ sizeof(struct ispprev_wbal)))
+ goto err_copy_from_user;
+ isppreview_config_whitebalance(prev_wbal_t);
+ }
+
+ if (ISP_ABS_PREV_BLKADJ & preview_struct- update) {
+ if (copy_from_user(&prev_blkadj_t, (struct ispprev_blkadjl *)
+ preview_struct- prev_blkadj,
+ sizeof(struct ispprev_blkadj)))
+ goto err_copy_from_user;
+ isppreview_config_blkadj(prev_blkadj_t);
+ }
+
+ if (ISP_ABS_PREV_RGB2RGB & preview_struct- update) {
+ if (copy_from_user(&rgb2rgb_t, (struct ispprev_rgbtorgb *)
+ preview_struct- rgb2rgb,
+ sizeof(struct ispprev_rgbtorgb)))
+ goto err_copy_from_user;
+ isppreview_config_rgb_blending(rgb2rgb_t);
+ }
+
+ if (ISP_ABS_PREV_COLOR_CONV & preview_struct- update) {
+ if (copy_from_user(&prev_csc_t, (struct ispprev_csc *)
+ preview_struct- prev_csc,
+ sizeof(struct ispprev_csc)))
+ goto err_copy_from_user;
+ spin_lock(&ispprev_obj.ispprev_lock);
+ if (ispprev_obj.stream_on == 0) {
+ isppreview_config_rgb_to_ycbcr(prev_csc_t);
+ CSC_update = 0;
+ } else
+ CSC_update = 1;
+
+ spin_unlock(&ispprev_obj.ispprev_lock);
+ } else
+ CSC_update = 0;
+
+ if (ISP_ABS_PREV_YC_LIMIT & preview_struct- update) {
+ if (copy_from_user(&yclimit_t, (struct ispprev_yclimit *)
+ preview_struct- yclimit,
+ sizeof(struct ispprev_yclimit)))
+ goto err_copy_from_user;
+ isppreview_config_yc_range(yclimit_t);
+ }
+
+ if (ISP_ABS_PREV_DEFECT_COR & preview_struct- flag) {
+ if (ISP_ABS_PREV_DEFECT_COR & preview_struct- update) {
+ if (copy_from_user(&prev_dcor_t,
+ (struct ispprev_dcor *)
+ preview_struct- prev_dcor,
+ sizeof(struct ispprev_dcor)))
+ goto err_copy_from_user;
+ isppreview_config_dcor(prev_dcor_t);
+ }
+ isppreview_enable_dcor(1);
+ params- features |= PREV_DEFECT_COR;
+ } else if (ISP_ABS_PREV_DEFECT_COR & preview_struct- update) {
+ isppreview_enable_dcor(0);
+ params- features &= ~PREV_DEFECT_COR;
+ }
+
+ if (ISP_ABS_PREV_GAMMABYPASS & preview_struct- flag) {
+ isppreview_enable_gammabypass(1);
+ params- features |= PREV_GAMMA_BYPASS;
+ } else {
+ isppreview_enable_gammabypass(0);
+ params- features &= ~PREV_GAMMA_BYPASS;
+ }
+
+ isp_table_update.update = preview_struct- update;
+ isp_table_update.flag = preview_struct- flag;
+ isp_table_update.prev_nf = preview_struct- prev_nf;
+ isp_table_update.red_gamma = preview_struct- red_gamma;
+ isp_table_update.green_gamma = preview_struct- green_gamma;
+ isp_table_update.blue_gamma = preview_struct- blue_gamma;
+
+ if (omap34xx_isp_tables_update(&isp_table_update))
+ goto err_copy_from_user;
+
+ return 0;
+
+err_copy_from_user:
+ printk(KERN_ERR "Preview Config: Copy From User Error");
+ return -EINVAL;
+}
+EXPORT_SYMBOL(omap34xx_isp_preview_config);
+
+/**
+ * omap34xx_isp_tables_update - Abstraction layer Tables update.
+ * @isptables_struct: Pointer from Userspace to structure with flags and table
+ * data to update.
+ **/
+int omap34xx_isp_tables_update(struct isptables_update *isptables_struct)
+{
+ int ctr;
+
+ if (ISP_ABS_TBL_NF & isptables_struct- flag) {
+ NF_enable = 1;
+ params- features |= PREV_NOISE_FILTER;
+ if (ISP_ABS_TBL_NF & isptables_struct- update) {
+ if (copy_from_user(&prev_nf_t, (struct ispprev_nf *)
+ isptables_struct- prev_nf,
+ sizeof(struct ispprev_nf)))
+ goto err_copy_from_user;
+
+ spin_lock(&ispprev_obj.ispprev_lock);
+ if (!ispprev_obj.stream_on) {
+ NF_update = 0;
+ isppreview_config_noisefilter(prev_nf_t);
+ isppreview_enable_noisefilter(NF_enable);
+ } else
+ NF_update = 1;
+
+ spin_unlock(&ispprev_obj.ispprev_lock);
+ } else
+ NF_update = 0;
+ } else {
+ NF_enable = 0;
+ params- features &= ~PREV_NOISE_FILTER;
+ if (ISP_ABS_TBL_NF & isptables_struct- update)
+ NF_update = 1;
+ else
+ NF_update = 0;
+ }
+
+ if (ISP_ABS_TBL_REDGAMMA & isptables_struct- update) {
+ if (copy_from_user(redgamma_table, isptables_struct- red_gamma,
+ sizeof(redgamma_table))) {
+ goto err_copy_from_user;
+ }
+ spin_lock(&ispprev_obj.ispprev_lock);
+ if (!ispprev_obj.stream_on) {
+ RG_update = 0;
+ isp_reg_writel(ISPPRV_TBL_ADDR_RED_G_START,
+ OMAP3_ISP_IOMEM_PREV, ISPPRV_SET_TBL_ADDR);
+ for (ctr = 0; ctr < ISP_GAMMA_TABLE_SIZE; ctr++)
+ isp_reg_writel(redgamma_table[ctr],
+ OMAP3_ISP_IOMEM_PREV, ISPPRV_SET_TBL_DATA);
+ } else
+ RG_update = 1;
+
+ spin_unlock(&ispprev_obj.ispprev_lock);
+ } else
+ RG_update = 0;
+
+ if (ISP_ABS_TBL_GREENGAMMA & isptables_struct- update) {
+ if (copy_from_user(greengamma_table,
+ isptables_struct- green_gamma,
+ sizeof(greengamma_table)))
+ goto err_copy_from_user;
+ spin_lock(&ispprev_obj.ispprev_lock);
+ if (!ispprev_obj.stream_on) {
+ GG_update = 0;
+ isp_reg_writel(ISPPRV_TBL_ADDR_GREEN_G_START,
+ OMAP3_ISP_IOMEM_PREV, ISPPRV_SET_TBL_ADDR);
+ for (ctr = 0; ctr < ISP_GAMMA_TABLE_SIZE; ctr++)
+ isp_reg_writel(greengamma_table[ctr],
+ OMAP3_ISP_IOMEM_PREV,
+ ISPPRV_SET_TBL_DATA);
+ } else
+ GG_update = 1;
+
+ spin_unlock(&ispprev_obj.ispprev_lock);
+ } else
+ GG_update = 0;
+
+ if (ISP_ABS_TBL_BLUEGAMMA & isptables_struct- update) {
+ if (copy_from_user(bluegamma_table,
+ isptables_struct- blue_gamma,
+ sizeof(bluegamma_table))) {
+ goto err_copy_from_user;
+ }
+ spin_lock(&ispprev_obj.ispprev_lock);
+ if (!ispprev_obj.stream_on) {
+ BG_update = 0;
+ isp_reg_writel(ISPPRV_TBL_ADDR_BLUE_G_START,
+ OMAP3_ISP_IOMEM_PREV,
+ ISPPRV_SET_TBL_ADDR);
+ for (ctr = 0; ctr < ISP_GAMMA_TABLE_SIZE; ctr++)
+ isp_reg_writel(bluegamma_table[ctr],
+ OMAP3_ISP_IOMEM_PREV,
+ ISPPRV_SET_TBL_DATA);
+ } else
+ BG_update = 1;
+
+ spin_unlock(&ispprev_obj.ispprev_lock);
+ } else
+ BG_update = 0;
+
+ return 0;
+
+err_copy_from_user:
+ printk(KERN_ERR "Preview Tables:Copy From User Error");
+ return -EINVAL;
+}
+
+/**
+ * isppreview_config_shadow_registers - Program shadow registers for preview.
+ *
+ * Allows user to program shadow registers associated with preview module.
+ **/
+void isppreview_config_shadow_registers()
+{
+ u8 current_brightness_contrast;
+ int ctr, prv_disabled;
+
+ isppreview_query_brightness(¤t_brightness_contrast);
+ if (current_brightness_contrast !=
+ (ispprev_obj.brightness * ISPPRV_BRIGHT_UNITS)) {
+ DPRINTK_ISPPREV(" Changing Brightness level to %d
",
+ ispprev_obj.brightness);
+ isppreview_config_brightness(ispprev_obj.brightness *
+ ISPPRV_BRIGHT_UNITS);
+ }
+
+ isppreview_query_contrast(¤t_brightness_contrast);
+ if (current_brightness_contrast !=
+ (ispprev_obj.contrast * ISPPRV_CONTRAST_UNITS)) {
+ DPRINTK_ISPPREV(" Changing Contrast level to %d
",
+ ispprev_obj.contrast);
+ isppreview_config_contrast(ispprev_obj.contrast *
+ ISPPRV_CONTRAST_UNITS);
+ }
+ if (update_color_matrix) {
+ isppreview_config_rgb_to_ycbcr(flr_prev_csc[ispprev_obj.color]);
+ update_color_matrix = 0;
+ }
+ if (GG_update || RG_update || BG_update || NF_update || CSC_update) {
+ isppreview_enable(0);
+ prv_disabled = 1;
+ }
+
+ if (CSC_update) {
+ isppreview_config_rgb_to_ycbcr(prev_csc_t);
+ CSC_update = 0;
+ }
+
+ if (GG_update) {
+ isp_reg_writel(ISPPRV_TBL_ADDR_GREEN_G_START,
+ OMAP3_ISP_IOMEM_PREV, ISPPRV_SET_TBL_ADDR);
+
+ for (ctr = 0; ctr < ISP_GAMMA_TABLE_SIZE; ctr++) {
+ isp_reg_writel(greengamma_table[ctr],
+ OMAP3_ISP_IOMEM_PREV, ISPPRV_SET_TBL_DATA);
+ }
+ GG_update = 0;
+ }
+
+ if (RG_update) {
+ isp_reg_writel(ISPPRV_TBL_ADDR_RED_G_START,
+ OMAP3_ISP_IOMEM_PREV, ISPPRV_SET_TBL_ADDR);
+
+ for (ctr = 0; ctr < ISP_GAMMA_TABLE_SIZE; ctr++) {
+ isp_reg_writel(redgamma_table[ctr],
+ OMAP3_ISP_IOMEM_PREV, ISPPRV_SET_TBL_DATA);
+ }
+ RG_update = 0;
+ }
+
+ if (BG_update) {
+ isp_reg_writel(ISPPRV_TBL_ADDR_BLUE_G_START,
+ OMAP3_ISP_IOMEM_PREV, ISPPRV_SET_TBL_ADDR);
+
+ for (ctr = 0; ctr < ISP_GAMMA_TABLE_SIZE; ctr++) {
+ isp_reg_writel(bluegamma_table[ctr],
+ OMAP3_ISP_IOMEM_PREV, ISPPRV_SET_TBL_DATA);
+ }
+ BG_update = 0;
+ }
+
+ if (NF_update && NF_enable) {
+ isp_reg_writel(0xC00,
+ OMAP3_ISP_IOMEM_PREV, ISPPRV_SET_TBL_ADDR);
+ isp_reg_writel(prev_nf_t.spread,
+ OMAP3_ISP_IOMEM_PREV, ISPPRV_NF);
+ for (ctr = 0; ctr < 64; ctr++) {
+ isp_reg_writel(prev_nf_t.table[ctr],
+ OMAP3_ISP_IOMEM_PREV, ISPPRV_SET_TBL_DATA);
+ }
+ isppreview_enable_noisefilter(1);
+ NF_update = 0;
+ }
+
+ if (~NF_update && NF_enable)
+ isppreview_enable_noisefilter(1);
+
+ if (NF_update && ~NF_enable)
+ isppreview_enable_noisefilter(0);
+
+ if (prv_disabled) {
+ isppreview_enable(1);
+ prv_disabled = 0;
+ }
+}
+EXPORT_SYMBOL(isppreview_config_shadow_registers);
+
+/**
+ * isppreview_request - Reserves the preview module.
+ *
+ * Returns 0 if successful, or -EBUSY if the module was already reserved.
+ **/
+int isppreview_request()
+{
+ mutex_lock(&ispprev_obj.ispprev_mutex);
+ if (ispprev_obj.prev_inuse) {
+ mutex_unlock(&ispprev_obj.ispprev_mutex);
+ printk(KERN_ERR "ISP_ERR : Preview Module Busy
");
+ return -EBUSY;
+ }
+ ispprev_obj.prev_inuse = 1;
+ mutex_unlock(&ispprev_obj.ispprev_mutex);
+ isp_reg_or(OMAP3_ISP_IOMEM_MAIN, ISP_CTRL, ISPCTRL_PREV_RAM_EN |
+ ISPCTRL_PREV_CLK_EN |
+ ISPCTRL_SBL_WR1_RAM_EN);
+ return 0;
+}
+EXPORT_SYMBOL(isppreview_request);
+
+/**
+ * isppreview_free - Frees the preview module.
+ *
+ * Returns 0 if successful, or -EINVAL if the module was already freed.
+ **/
+int isppreview_free()
+{
+ mutex_lock(&ispprev_obj.ispprev_mutex);
+ if (ispprev_obj.prev_inuse) {
+ ispprev_obj.prev_inuse = 0;
+ mutex_unlock(&ispprev_obj.ispprev_mutex);
+ isp_reg_and(OMAP3_ISP_IOMEM_MAIN, ISP_CTRL,
+ ~(ISPCTRL_PREV_CLK_EN |
+ ISPCTRL_PREV_RAM_EN |
+ ISPCTRL_SBL_WR1_RAM_EN));
+ return 0;
+ } else {
+ mutex_unlock(&ispprev_obj.ispprev_mutex);
+ DPRINTK_ISPPREV("ISP_ERR : Preview Module already freed
");
+ return -EINVAL;
+ }
+
+}
+EXPORT_SYMBOL(isppreview_free);
+
+/** isppreview_config_datapath - Specifies input and output modules for Preview
+ * @input: Indicates the module that gives the image to preview.
+ * @output: Indicates the module to which the preview outputs to.
+ *
+ * Configures the default configuration for the CCDC to work with.
+ *
+ * The valid values for the input are PRV_RAW_CCDC (0), PRV_RAW_MEM (1),
+ * PRV_RGBBAYERCFA (2), PRV_COMPCFA (3), PRV_CCDC_DRKF (4), PRV_OTHERS (5).
+ *
+ * The valid values for the output are PREVIEW_RSZ (0), PREVIEW_MEM (1).
+ *
+ * Returns 0 if successful, or -EINVAL if wrong input or output values are
+ * specified.
+ **/
+int isppreview_config_datapath(enum preview_input input,
+ enum preview_output output)
+{
+ u32 pcr = 0;
+ u8 enable = 0;
+ struct prev_params *params = prev_config_params;
+ struct ispprev_yclimit yclimit;
+
+ pcr = isp_reg_readl(OMAP3_ISP_IOMEM_PREV, ISPPRV_PCR);
+
+ switch (input) {
+ case PRV_RAW_CCDC:
+ pcr &= ~ISPPRV_PCR_SOURCE;
+ pcr &= ~ISPPRV_PCR_ONESHOT;
+ ispprev_obj.prev_inpfmt = PRV_RAW_CCDC;
+ break;
+ case PRV_RAW_MEM:
+ pcr |= ISPPRV_PCR_SOURCE;
+ pcr |= ISPPRV_PCR_ONESHOT;
+ ispprev_obj.prev_inpfmt = PRV_RAW_MEM;
+ break;
+ case PRV_CCDC_DRKF:
+ pcr |= ISPPRV_PCR_DRKFCAP;
+ pcr |= ISPPRV_PCR_ONESHOT;
+ ispprev_obj.prev_inpfmt = PRV_CCDC_DRKF;
+ break;
+ case PRV_COMPCFA:
+ ispprev_obj.prev_inpfmt = PRV_COMPCFA;
+ break;
+ case PRV_OTHERS:
+ ispprev_obj.prev_inpfmt = PRV_OTHERS;
+ break;
+ case PRV_RGBBAYERCFA:
+ ispprev_obj.prev_inpfmt = PRV_RGBBAYERCFA;
+ break;
+ default:
+ printk(KERN_ERR "ISP_ERR : Wrong Input
");
+ return -EINVAL;
+ };
+
+ switch (output) {
+ case PREVIEW_RSZ:
+ pcr |= ISPPRV_PCR_RSZPORT;
+ pcr &= ~ISPPRV_PCR_SDRPORT;
+ break;
+ case PREVIEW_MEM:
+ pcr &= ~ISPPRV_PCR_RSZPORT;
+ pcr |= ISPPRV_PCR_SDRPORT;
+ break;
+ default:
+ printk(KERN_ERR "ISP_ERR : Wrong Output
");
+ return -EINVAL;
+ }
+ ispprev_obj.prev_outfmt = output;
+
+ isp_reg_writel(pcr, OMAP3_ISP_IOMEM_PREV, ISPPRV_PCR);
+
+ isppreview_config_ycpos(params- pix_fmt);
+
+ if (params- cfa.cfa_table != NULL)
+ isppreview_config_cfa(params- cfa);
+ if (params- csup.hypf_en == 1)
+ isppreview_config_chroma_suppression(params- csup);
+ if (params- ytable != NULL)
+ isppreview_config_luma_enhancement(params- ytable);
+
+ if (params- gtable.redtable != NULL)
+ isppreview_config_gammacorrn(params- gtable);
+
+ enable = (params- features & PREV_CFA) ? 1 : 0;
+ isppreview_enable_cfa(enable);
+
+ enable = (params- features & PREV_CHROMA_SUPPRESS) ? 1 : 0;
+ isppreview_enable_chroma_suppression(enable);
+
+ enable = (params- features & PREV_LUMA_ENHANCE) ? 1 : 0;
+ isppreview_enable_luma_enhancement(enable);
+
+ enable = (params- features & PREV_NOISE_FILTER) ? 1 : 0;
+ if (enable)
+ isppreview_config_noisefilter(params- nf);
+ isppreview_enable_noisefilter(enable);
+
+ enable = (params- features & PREV_DEFECT_COR) ? 1 : 0;
+ if (enable)
+ isppreview_config_dcor(params- dcor);
+ isppreview_enable_dcor(enable);
+
+ enable = (params- features & PREV_GAMMA_BYPASS) ? 1 : 0;
+ isppreview_enable_gammabypass(enable);
+
+ isppreview_config_whitebalance(params- wbal);
+ isppreview_config_blkadj(params- blk_adj);
+ isppreview_config_rgb_blending(params- rgb2rgb);
+ isppreview_config_rgb_to_ycbcr(params- rgb2ycbcr);
+
+ isppreview_config_contrast(params- contrast * ISPPRV_CONTRAST_UNITS);
+ isppreview_config_brightness(params- brightness * ISPPRV_BRIGHT_UNITS);
+
+ yclimit.minC = ISPPRV_YC_MIN;
+ yclimit.maxC = ISPPRV_YC_MAX;
+ yclimit.minY = ISPPRV_YC_MIN;
+ yclimit.maxY = ISPPRV_YC_MAX;
+ isppreview_config_yc_range(yclimit);
+
+ return 0;
+}
+EXPORT_SYMBOL(isppreview_config_datapath);
+
+/**
+ * isppreview_set_skip - Set the number of rows/columns that should be skipped.
+ * h - Start Pixel Horizontal.
+ * v - Start Line Vertical.
+ **/
+void isppreview_set_skip(u32 h, u32 v)
+{
+ ispprev_obj.sph = h;
+ ispprev_obj.slv = v;
+}
+EXPORT_SYMBOL(isppreview_set_skip);
+
+/**
+ * isppreview_config_ycpos - Configure byte layout of YUV image.
+ * @mode: Indicates the required byte layout.
+ **/
+void isppreview_config_ycpos(enum preview_ycpos_mode mode)
+{
+ u32 pcr = isp_reg_readl(OMAP3_ISP_IOMEM_PREV, ISPPRV_PCR);
+ pcr &= ~ISPPRV_PCR_YCPOS_CrYCbY;
+ pcr |= (mode << ISPPRV_PCR_YCPOS_SHIFT);
+ isp_reg_writel(pcr, OMAP3_ISP_IOMEM_PREV, ISPPRV_PCR);
+}
+EXPORT_SYMBOL(isppreview_config_ycpos);
+
+/**
+ * isppreview_config_averager - Enable / disable / configure averager
+ * @average: Average value to be configured.
+ **/
+void isppreview_config_averager(u8 average)
+{
+ int reg = 0;
+
+ reg = AVE_ODD_PIXEL_DIST | AVE_EVEN_PIXEL_DIST | average;
+ isp_reg_writel(reg, OMAP3_ISP_IOMEM_PREV, ISPPRV_AVE);
+}
+EXPORT_SYMBOL(isppreview_config_averager);
+
+/**
+ * isppreview_enable_invalaw - Enable/Disable Inverse A-Law module in Preview.
+ * @enable: 1 - Reverse the A-Law done in CCDC.
+ **/
+void isppreview_enable_invalaw(u8 enable)
+{
+ u32 pcr_val = 0;
+ pcr_val = isp_reg_readl(OMAP3_ISP_IOMEM_PREV, ISPPRV_PCR);
+
+ if (enable) {
+ isp_reg_writel(pcr_val | ISPPRV_PCR_WIDTH | ISPPRV_PCR_INVALAW,
+ OMAP3_ISP_IOMEM_PREV, ISPPRV_PCR);
+ } else {
+ isp_reg_writel(pcr_val &
+ ~(ISPPRV_PCR_WIDTH | ISPPRV_PCR_INVALAW),
+ OMAP3_ISP_IOMEM_PREV, ISPPRV_PCR);
+ }
+}
+EXPORT_SYMBOL(isppreview_enable_invalaw);
+
+/**
+ * isppreview_enable_drkframe - Enable/Disable of the darkframe subtract.
+ * @enable: 1 - Acquires memory bandwidth since the pixels in each frame is
+ * subtracted with the pixels in the current frame.
+ *
+ * The proccess is applied for each captured frame.
+ **/
+void isppreview_enable_drkframe(u8 enable)
+{
+ if (enable)
+ isp_reg_or(OMAP3_ISP_IOMEM_PREV, ISPPRV_PCR, ISPPRV_PCR_DRKFEN);
+ else {
+ isp_reg_and(OMAP3_ISP_IOMEM_PREV, ISPPRV_PCR,
+ ~ISPPRV_PCR_DRKFEN);
+ }
+}
+EXPORT_SYMBOL(isppreview_enable_drkframe);
+
+/**
+ * isppreview_enable_shadcomp - Enables/Disables the shading compensation.
+ * @enable: 1 - Enables the shading compensation.
+ *
+ * If dark frame subtract wont be used, then enable this shading
+ * compensation.
+ **/
+void isppreview_enable_shadcomp(u8 enable)
+{
+
+ if (enable) {
+ isp_reg_or(OMAP3_ISP_IOMEM_PREV, ISPPRV_PCR,
+ ISPPRV_PCR_SCOMP_EN);
+ isppreview_enable_drkframe(1);
+ } else {
+ isp_reg_and(OMAP3_ISP_IOMEM_PREV, ISPPRV_PCR,
+ ~ISPPRV_PCR_SCOMP_EN);
+ }
+}
+EXPORT_SYMBOL(isppreview_enable_shadcomp);
+
+/**
+ * isppreview_config_drkf_shadcomp - Configures shift value in shading comp.
+ * @scomp_shtval: 3bit value of shift used in shading compensation.
+ **/
+void isppreview_config_drkf_shadcomp(u8 scomp_shtval)
+{
+ u32 pcr_val = isp_reg_readl(OMAP3_ISP_IOMEM_PREV, ISPPRV_PCR);
+
+ pcr_val &= ISPPRV_PCR_SCOMP_SFT_MASK;
+ isp_reg_writel(pcr_val | (scomp_shtval << ISPPRV_PCR_SCOMP_SFT_SHIFT),
+ OMAP3_ISP_IOMEM_PREV, ISPPRV_PCR);
+}
+EXPORT_SYMBOL(isppreview_config_drkf_shadcomp);
+
+/**
+ * isppreview_enable_hmed - Enables/Disables of the Horizontal Median Filter.
+ * @enable: 1 - Enables Horizontal Median Filter.
+ **/
+void isppreview_enable_hmed(u8 enable)
+{
+ if (enable)
+ isp_reg_or(OMAP3_ISP_IOMEM_PREV, ISPPRV_PCR, ISPPRV_PCR_HMEDEN);
+ else {
+ isp_reg_and(OMAP3_ISP_IOMEM_PREV, ISPPRV_PCR,
+ ~ISPPRV_PCR_HMEDEN);
+ }
+ ispprev_obj.hmed_en = enable ? 1 : 0;
+}
+EXPORT_SYMBOL(isppreview_enable_hmed);
+
+/**
+ * isppreview_config_hmed - Configures the Horizontal Median Filter.
+ * @prev_hmed: Structure containing the odd and even distance between the
+ * pixels in the image along with the filter threshold.
+ **/
+void isppreview_config_hmed(struct ispprev_hmed prev_hmed)
+{
+
+ u32 odddist = 0;
+ u32 evendist = 0;
+
+ if (prev_hmed.odddist == 1)
+ odddist = ~ISPPRV_HMED_ODDDIST;
+ else
+ odddist = ISPPRV_HMED_ODDDIST;
+
+ if (prev_hmed.evendist == 1)
+ evendist = ~ISPPRV_HMED_EVENDIST;
+ else
+ evendist = ISPPRV_HMED_EVENDIST;
+
+ isp_reg_writel(odddist | evendist | (prev_hmed.thres <<
+ ISPPRV_HMED_THRESHOLD_SHIFT),
+ OMAP3_ISP_IOMEM_PREV, ISPPRV_HMED);
+
+}
+EXPORT_SYMBOL(isppreview_config_hmed);
+
+/**
+ * isppreview_config_noisefilter - Configures the Noise Filter.
+ * @prev_nf: Structure containing the noisefilter table, strength to be used
+ * for the noise filter and the defect correction enable flag.
+ **/
+void isppreview_config_noisefilter(struct ispprev_nf prev_nf)
+{
+ int i = 0;
+
+ isp_reg_writel(prev_nf.spread, OMAP3_ISP_IOMEM_PREV, ISPPRV_NF);
+ isp_reg_writel(ISPPRV_NF_TABLE_ADDR, OMAP3_ISP_IOMEM_PREV,
+ ISPPRV_SET_TBL_ADDR);
+ for (i = 0; i < 64; i++) {
+ isp_reg_writel(prev_nf.table[i], OMAP3_ISP_IOMEM_PREV,
+ ISPPRV_SET_TBL_DATA);
+ }
+}
+EXPORT_SYMBOL(isppreview_config_noisefilter);
+
+/**
+ * isppreview_config_dcor - Configures the defect correction
+ * @prev_nf: Structure containing the defect correction structure
+ **/
+void isppreview_config_dcor(struct ispprev_dcor prev_dcor)
+{
+ if (prev_dcor.couplet_mode_en) {
+ isp_reg_writel(prev_dcor.detect_correct[0],
+ OMAP3_ISP_IOMEM_PREV, ISPPRV_CDC_THR0);
+ isp_reg_writel(prev_dcor.detect_correct[1],
+ OMAP3_ISP_IOMEM_PREV, ISPPRV_CDC_THR1);
+ isp_reg_writel(prev_dcor.detect_correct[2],
+ OMAP3_ISP_IOMEM_PREV, ISPPRV_CDC_THR2);
+ isp_reg_writel(prev_dcor.detect_correct[3],
+ OMAP3_ISP_IOMEM_PREV, ISPPRV_CDC_THR3);
+ isp_reg_or(OMAP3_ISP_IOMEM_PREV, ISPPRV_PCR, ISPPRV_PCR_DCCOUP);
+ } else {
+ isp_reg_and(OMAP3_ISP_IOMEM_PREV, ISPPRV_PCR,
+ ~ISPPRV_PCR_DCCOUP);
+ }
+}
+EXPORT_SYMBOL(isppreview_config_dcor);
+
+/**
+ * isppreview_config_cfa - Configures the CFA Interpolation parameters.
+ * @prev_cfa: Structure containing the CFA interpolation table, CFA format
+ * in the image, vertical and horizontal gradient threshold.
+ **/
+void isppreview_config_cfa(struct ispprev_cfa prev_cfa)
+{
+ int i = 0;
+
+ ispprev_obj.cfafmt = prev_cfa.cfafmt;
+
+ isp_reg_or(OMAP3_ISP_IOMEM_PREV, ISPPRV_PCR,
+ (prev_cfa.cfafmt << ISPPRV_PCR_CFAFMT_SHIFT));
+
+ isp_reg_writel(
+ (prev_cfa.cfa_gradthrs_vert << ISPPRV_CFA_GRADTH_VER_SHIFT) |
+ (prev_cfa.cfa_gradthrs_horz << ISPPRV_CFA_GRADTH_HOR_SHIFT),
+ OMAP3_ISP_IOMEM_PREV, ISPPRV_CFA);
+
+ isp_reg_writel(ISPPRV_CFA_TABLE_ADDR, OMAP3_ISP_IOMEM_PREV,
+ ISPPRV_SET_TBL_ADDR);
+
+ for (i = 0; i < 576; i++) {
+ isp_reg_writel(prev_cfa.cfa_table[i],
+ OMAP3_ISP_IOMEM_PREV, ISPPRV_SET_TBL_DATA);
+ }
+}
+EXPORT_SYMBOL(isppreview_config_cfa);
+
+/**
+ * isppreview_config_gammacorrn - Configures the Gamma Correction table values
+ * @gtable: Structure containing the table for red, blue, green gamma table.
+ **/
+void isppreview_config_gammacorrn(struct ispprev_gtable gtable)
+{
+ int i = 0;
+
+ isp_reg_writel(ISPPRV_REDGAMMA_TABLE_ADDR,
+ OMAP3_ISP_IOMEM_PREV, ISPPRV_SET_TBL_ADDR);
+ for (i = 0; i < 1024; i++) {
+ isp_reg_writel(gtable.redtable[i],
+ OMAP3_ISP_IOMEM_PREV, ISPPRV_SET_TBL_DATA);
+ }
+
+ isp_reg_writel(ISPPRV_GREENGAMMA_TABLE_ADDR,
+ OMAP3_ISP_IOMEM_PREV, ISPPRV_SET_TBL_ADDR);
+ for (i = 0; i < 1024; i++) {
+ isp_reg_writel(gtable.greentable[i],
+ OMAP3_ISP_IOMEM_PREV, ISPPRV_SET_TBL_DATA);
+ }
+
+ isp_reg_writel(ISPPRV_BLUEGAMMA_TABLE_ADDR,
+ OMAP3_ISP_IOMEM_PREV, ISPPRV_SET_TBL_ADDR);
+ for (i = 0; i < 1024; i++) {
+ isp_reg_writel(gtable.bluetable[i],
+ OMAP3_ISP_IOMEM_PREV, ISPPRV_SET_TBL_DATA);
+ }
+}
+EXPORT_SYMBOL(isppreview_config_gammacorrn);
+
+/**
+ * isppreview_config_luma_enhancement - Sets the Luminance Enhancement table.
+ * @ytable: Structure containing the table for Luminance Enhancement table.
+ **/
+void isppreview_config_luma_enhancement(u32 *ytable)
+{
+ int i = 0;
+
+ isp_reg_writel(ISPPRV_YENH_TABLE_ADDR,
+ OMAP3_ISP_IOMEM_PREV, ISPPRV_SET_TBL_ADDR);
+ for (i = 0; i < 128; i++) {
+ isp_reg_writel(ytable[i],
+ OMAP3_ISP_IOMEM_PREV, ISPPRV_SET_TBL_DATA);
+ }
+}
+EXPORT_SYMBOL(isppreview_config_luma_enhancement);
+
+/**
+ * isppreview_config_chroma_suppression - Configures the Chroma Suppression.
+ * @csup: Structure containing the threshold value for suppression
+ * and the hypass filter enable flag.
+ **/
+void isppreview_config_chroma_suppression(struct ispprev_csup csup)
+{
+ isp_reg_writel(csup.gain | (csup.thres << ISPPRV_CSUP_THRES_SHIFT) |
+ (csup.hypf_en << ISPPRV_CSUP_HPYF_SHIFT),
+ OMAP3_ISP_IOMEM_PREV, ISPPRV_CSUP);
+}
+EXPORT_SYMBOL(isppreview_config_chroma_suppression);
+
+/**
+ * isppreview_enable_noisefilter - Enables/Disables the Noise Filter.
+ * @enable: 1 - Enables the Noise Filter.
+ **/
+void isppreview_enable_noisefilter(u8 enable)
+{
+ if (enable)
+ isp_reg_or(OMAP3_ISP_IOMEM_PREV, ISPPRV_PCR, ISPPRV_PCR_NFEN);
+ else
+ isp_reg_and(OMAP3_ISP_IOMEM_PREV, ISPPRV_PCR, ~ISPPRV_PCR_NFEN);
+ ispprev_obj.nf_en = enable ? 1 : 0;
+}
+EXPORT_SYMBOL(isppreview_enable_noisefilter);
+
+/**
+ * isppreview_enable_dcor - Enables/Disables the defect correction.
+ * @enable: 1 - Enables the defect correction.
+ **/
+void isppreview_enable_dcor(u8 enable)
+{
+ if (enable)
+ isp_reg_or(OMAP3_ISP_IOMEM_PREV, ISPPRV_PCR, ISPPRV_PCR_DCOREN);
+ else {
+ isp_reg_and(OMAP3_ISP_IOMEM_PREV, ISPPRV_PCR,
+ ~ISPPRV_PCR_DCOREN);
+ }
+ ispprev_obj.dcor_en = enable ? 1 : 0;
+}
+EXPORT_SYMBOL(isppreview_enable_dcor);
+
+/**
+ * isppreview_enable_cfa - Enable/Disable the CFA Interpolation.
+ * @enable: 1 - Enables the CFA.
+ **/
+void isppreview_enable_cfa(u8 enable)
+{
+ if (enable)
+ isp_reg_or(OMAP3_ISP_IOMEM_PREV, ISPPRV_PCR, ISPPRV_PCR_CFAEN);
+ else {
+ isp_reg_and(OMAP3_ISP_IOMEM_PREV, ISPPRV_PCR,
+ ~ISPPRV_PCR_CFAEN);
+ }
+ ispprev_obj.cfa_en = enable ? 1 : 0;
+}
+EXPORT_SYMBOL(isppreview_enable_cfa);
+
+/**
+ * isppreview_enable_gammabypass - Enables/Disables the GammaByPass
+ * @enable: 1 - Bypasses Gamma - 10bit input is cropped to 8MSB.
+ * 0 - Goes through Gamma Correction. input and output is 10bit.
+ **/
+void isppreview_enable_gammabypass(u8 enable)
+{
+ if (enable) {
+ isp_reg_or(OMAP3_ISP_IOMEM_PREV, ISPPRV_PCR,
+ ISPPRV_PCR_GAMMA_BYPASS);
+ } else {
+ isp_reg_and(OMAP3_ISP_IOMEM_PREV, ISPPRV_PCR,
+ ~ISPPRV_PCR_GAMMA_BYPASS);
+ }
+}
+EXPORT_SYMBOL(isppreview_enable_gammabypass);
+
+/**
+ * isppreview_enable_luma_enhancement - Enables/Disables Luminance Enhancement
+ * @enable: 1 - Enable the Luminance Enhancement.
+ **/
+void isppreview_enable_luma_enhancement(u8 enable)
+{
+ if (enable) {
+ isp_reg_or(OMAP3_ISP_IOMEM_PREV, ISPPRV_PCR,
+ ISPPRV_PCR_YNENHEN);
+ } else {
+ isp_reg_and(OMAP3_ISP_IOMEM_PREV, ISPPRV_PCR,
+ ~ISPPRV_PCR_YNENHEN);
+ }
+ ispprev_obj.yenh_en = enable ? 1 : 0;
+}
+EXPORT_SYMBOL(isppreview_enable_luma_enhancement);
+
+/**
+ * isppreview_enable_chroma_suppression - Enables/Disables Chrominance Suppr.
+ * @enable: 1 - Enable the Chrominance Suppression.
+ **/
+void isppreview_enable_chroma_suppression(u8 enable)
+{
+ if (enable)
+ isp_reg_or(OMAP3_ISP_IOMEM_PREV, ISPPRV_PCR, ISPPRV_PCR_SUPEN);
+ else {
+ isp_reg_and(OMAP3_ISP_IOMEM_PREV, ISPPRV_PCR,
+ ~ISPPRV_PCR_SUPEN);
+ }
+ ispprev_obj.csup_en = enable ? 1 : 0;
+}
+EXPORT_SYMBOL(isppreview_enable_chroma_suppression);
+
+/**
+ * isppreview_config_whitebalance - Configures the White Balance parameters.
+ * @prev_wbal: Structure containing the digital gain and white balance
+ * coefficient.
+ *
+ * Coefficient matrix always with default values.
+ **/
+void isppreview_config_whitebalance(struct ispprev_wbal prev_wbal)
+{
+
+ isp_reg_writel(prev_wbal.dgain, OMAP3_ISP_IOMEM_PREV, ISPPRV_WB_DGAIN);
+ isp_reg_writel(prev_wbal.coef0 |
+ prev_wbal.coef1 << ISPPRV_WBGAIN_COEF1_SHIFT |
+ prev_wbal.coef2 << ISPPRV_WBGAIN_COEF2_SHIFT |
+ prev_wbal.coef3 << ISPPRV_WBGAIN_COEF3_SHIFT,
+ OMAP3_ISP_IOMEM_PREV, ISPPRV_WBGAIN);
+
+ isp_reg_writel((ISPPRV_WBSEL_COEF0 << ISPPRV_WBSEL_N0_0_SHIFT) |
+ (ISPPRV_WBSEL_COEF1 << ISPPRV_WBSEL_N0_1_SHIFT) |
+ (ISPPRV_WBSEL_COEF0 << ISPPRV_WBSEL_N0_2_SHIFT) |
+ (ISPPRV_WBSEL_COEF1 << ISPPRV_WBSEL_N0_3_SHIFT) |
+ (ISPPRV_WBSEL_COEF2 << ISPPRV_WBSEL_N1_0_SHIFT) |
+ (ISPPRV_WBSEL_COEF3 << ISPPRV_WBSEL_N1_1_SHIFT) |
+ (ISPPRV_WBSEL_COEF2 << ISPPRV_WBSEL_N1_2_SHIFT) |
+ (ISPPRV_WBSEL_COEF3 << ISPPRV_WBSEL_N1_3_SHIFT) |
+ (ISPPRV_WBSEL_COEF0 << ISPPRV_WBSEL_N2_0_SHIFT) |
+ (ISPPRV_WBSEL_COEF1 << ISPPRV_WBSEL_N2_1_SHIFT) |
+ (ISPPRV_WBSEL_COEF0 << ISPPRV_WBSEL_N2_2_SHIFT) |
+ (ISPPRV_WBSEL_COEF1 << ISPPRV_WBSEL_N2_3_SHIFT) |
+ (ISPPRV_WBSEL_COEF2 << ISPPRV_WBSEL_N3_0_SHIFT) |
+ (ISPPRV_WBSEL_COEF3 << ISPPRV_WBSEL_N3_1_SHIFT) |
+ (ISPPRV_WBSEL_COEF2 << ISPPRV_WBSEL_N3_2_SHIFT) |
+ (ISPPRV_WBSEL_COEF3 << ISPPRV_WBSEL_N3_3_SHIFT),
+ OMAP3_ISP_IOMEM_PREV, ISPPRV_WBSEL);
+
+}
+EXPORT_SYMBOL(isppreview_config_whitebalance);
+
+/**
+ * isppreview_config_whitebalance2 - Configures the White Balance parameters.
+ * @prev_wbal: Structure containing the digital gain and white balance
+ * coefficient.
+ *
+ * Coefficient matrix can be changed.
+ **/
+void isppreview_config_whitebalance2(struct prev_white_balance prev_wbal)
+{
+ isp_reg_writel(prev_wbal.wb_dgain,
+ OMAP3_ISP_IOMEM_PREV, ISPPRV_WB_DGAIN);
+ isp_reg_writel(prev_wbal.wb_gain[0] |
+ (prev_wbal.wb_gain[1] << ISPPRV_WBGAIN_COEF1_SHIFT) |
+ (prev_wbal.wb_gain[2] << ISPPRV_WBGAIN_COEF2_SHIFT) |
+ (prev_wbal.wb_gain[3] << ISPPRV_WBGAIN_COEF3_SHIFT),
+ OMAP3_ISP_IOMEM_PREV, ISPPRV_WBGAIN);
+
+ isp_reg_writel(prev_wbal.wb_coefmatrix[0][0] << ISPPRV_WBSEL_N0_0_SHIFT |
+ prev_wbal.wb_coefmatrix[0][1] << ISPPRV_WBSEL_N0_1_SHIFT |
+ prev_wbal.wb_coefmatrix[0][2] << ISPPRV_WBSEL_N0_2_SHIFT |
+ prev_wbal.wb_coefmatrix[0][3] << ISPPRV_WBSEL_N0_3_SHIFT |
+ prev_wbal.wb_coefmatrix[1][0] << ISPPRV_WBSEL_N1_0_SHIFT |
+ prev_wbal.wb_coefmatrix[1][1] << ISPPRV_WBSEL_N1_1_SHIFT |
+ prev_wbal.wb_coefmatrix[1][2] << ISPPRV_WBSEL_N1_2_SHIFT |
+ prev_wbal.wb_coefmatrix[1][3] << ISPPRV_WBSEL_N1_3_SHIFT |
+ prev_wbal.wb_coefmatrix[2][0] << ISPPRV_WBSEL_N2_0_SHIFT |
+ prev_wbal.wb_coefmatrix[2][1] << ISPPRV_WBSEL_N2_1_SHIFT |
+ prev_wbal.wb_coefmatrix[2][2] << ISPPRV_WBSEL_N2_2_SHIFT |
+ prev_wbal.wb_coefmatrix[2][3] << ISPPRV_WBSEL_N2_3_SHIFT |
+ prev_wbal.wb_coefmatrix[3][0] << ISPPRV_WBSEL_N3_0_SHIFT |
+ prev_wbal.wb_coefmatrix[3][1] << ISPPRV_WBSEL_N3_1_SHIFT |
+ prev_wbal.wb_coefmatrix[3][2] << ISPPRV_WBSEL_N3_2_SHIFT |
+ prev_wbal.wb_coefmatrix[3][3] << ISPPRV_WBSEL_N3_3_SHIFT,
+ OMAP3_ISP_IOMEM_PREV, ISPPRV_WBSEL);
+}
+EXPORT_SYMBOL(isppreview_config_whitebalance2);
+
+/**
+ * isppreview_config_blkadj - Configures the Black Adjustment parameters.
+ * @prev_blkadj: Structure containing the black adjustment towards red, green,
+ * blue.
+ **/
+void isppreview_config_blkadj(struct ispprev_blkadj prev_blkadj)
+{
+ isp_reg_writel(prev_blkadj.blue |
+ (prev_blkadj.green << ISPPRV_BLKADJOFF_G_SHIFT) |
+ (prev_blkadj.red << ISPPRV_BLKADJOFF_R_SHIFT),
+ OMAP3_ISP_IOMEM_PREV, ISPPRV_BLKADJOFF);
+}
+EXPORT_SYMBOL(isppreview_config_blkadj);
+
+/**
+ * isppreview_config_rgb_blending - Configures the RGB-RGB Blending matrix.
+ * @rgb2rgb: Structure containing the rgb to rgb blending matrix and the rgb
+ * offset.
+ **/
+void isppreview_config_rgb_blending(struct ispprev_rgbtorgb rgb2rgb)
+{
+ isp_reg_writel((rgb2rgb.matrix[0][0] << ISPPRV_RGB_MAT1_MTX_RR_SHIFT) |
+ (rgb2rgb.matrix[0][1] << ISPPRV_RGB_MAT1_MTX_GR_SHIFT),
+ OMAP3_ISP_IOMEM_PREV, ISPPRV_RGB_MAT1);
+
+ isp_reg_writel((rgb2rgb.matrix[0][2] << ISPPRV_RGB_MAT2_MTX_BR_SHIFT) |
+ (rgb2rgb.matrix[1][0] << ISPPRV_RGB_MAT2_MTX_RG_SHIFT),
+ OMAP3_ISP_IOMEM_PREV, ISPPRV_RGB_MAT2);
+
+ isp_reg_writel((rgb2rgb.matrix[1][1] << ISPPRV_RGB_MAT3_MTX_GG_SHIFT) |
+ (rgb2rgb.matrix[1][2] << ISPPRV_RGB_MAT3_MTX_BG_SHIFT),
+ OMAP3_ISP_IOMEM_PREV, ISPPRV_RGB_MAT3);
+
+ isp_reg_writel((rgb2rgb.matrix[2][0] << ISPPRV_RGB_MAT4_MTX_RB_SHIFT) |
+ (rgb2rgb.matrix[2][1] << ISPPRV_RGB_MAT4_MTX_GB_SHIFT),
+ OMAP3_ISP_IOMEM_PREV, ISPPRV_RGB_MAT4);
+
+ isp_reg_writel((rgb2rgb.matrix[2][2] << ISPPRV_RGB_MAT5_MTX_BB_SHIFT),
+ OMAP3_ISP_IOMEM_PREV, ISPPRV_RGB_MAT5);
+
+ isp_reg_writel((rgb2rgb.offset[0] << ISPPRV_RGB_OFF1_MTX_OFFG_SHIFT) |
+ (rgb2rgb.offset[1] << ISPPRV_RGB_OFF1_MTX_OFFR_SHIFT),
+ OMAP3_ISP_IOMEM_PREV, ISPPRV_RGB_OFF1);
+
+ isp_reg_writel(rgb2rgb.offset[2] << ISPPRV_RGB_OFF2_MTX_OFFB_SHIFT,
+ OMAP3_ISP_IOMEM_PREV, ISPPRV_RGB_OFF2);
+
+}
+EXPORT_SYMBOL(isppreview_config_rgb_blending);
+
+/**
+ * Configures the RGB-YCbYCr conversion matrix
+ * @prev_csc: Structure containing the RGB to YCbYCr matrix and the
+ * YCbCr offset.
+ **/
+void isppreview_config_rgb_to_ycbcr(struct ispprev_csc prev_csc)
+{
+ isp_reg_writel(prev_csc.matrix[0][0] << ISPPRV_CSC0_RY_SHIFT |
+ prev_csc.matrix[0][1] << ISPPRV_CSC0_GY_SHIFT |
+ prev_csc.matrix[0][2] << ISPPRV_CSC0_BY_SHIFT,
+ OMAP3_ISP_IOMEM_PREV, ISPPRV_CSC0);
+
+ isp_reg_writel(prev_csc.matrix[1][0] << ISPPRV_CSC1_RCB_SHIFT |
+ prev_csc.matrix[1][1] << ISPPRV_CSC1_GCB_SHIFT |
+ prev_csc.matrix[1][2] << ISPPRV_CSC1_BCB_SHIFT,
+ OMAP3_ISP_IOMEM_PREV, ISPPRV_CSC1);
+
+ isp_reg_writel(prev_csc.matrix[2][0] << ISPPRV_CSC2_RCR_SHIFT |
+ prev_csc.matrix[2][1] << ISPPRV_CSC2_GCR_SHIFT |
+ prev_csc.matrix[2][2] << ISPPRV_CSC2_BCR_SHIFT,
+ OMAP3_ISP_IOMEM_PREV, ISPPRV_CSC2);
+
+ isp_reg_writel(prev_csc.offset[0] << ISPPRV_CSC_OFFSET_CR_SHIFT |
+ prev_csc.offset[1] << ISPPRV_CSC_OFFSET_CB_SHIFT |
+ prev_csc.offset[2] << ISPPRV_CSC_OFFSET_Y_SHIFT,
+ OMAP3_ISP_IOMEM_PREV, ISPPRV_CSC_OFFSET);
+}
+EXPORT_SYMBOL(isppreview_config_rgb_to_ycbcr);
+
+/**
+ * isppreview_query_contrast - Query the contrast.
+ * @contrast: Pointer to hold the current programmed contrast value.
+ **/
+void isppreview_query_contrast(u8 *contrast)
+{
+ u32 brt_cnt_val = 0;
+
+ brt_cnt_val = isp_reg_readl(OMAP3_ISP_IOMEM_PREV, ISPPRV_CNT_BRT);
+ *contrast = (brt_cnt_val ISPPRV_CNT_BRT_CNT_SHIFT) & 0xFF;
+ DPRINTK_ISPPREV(" Current brt cnt value in hw is %x
", brt_cnt_val);
+}
+EXPORT_SYMBOL(isppreview_query_contrast);
+
+/**
+ * isppreview_update_contrast - Updates the contrast.
+ * @contrast: Pointer to hold the current programmed contrast value.
+ *
+ * Value should be programmed before enabling the module.
+ **/
+void isppreview_update_contrast(u8 *contrast)
+{
+ ispprev_obj.contrast = *contrast;
+}
+EXPORT_SYMBOL(isppreview_update_contrast);
+
+/**
+ * isppreview_config_contrast - Configures the Contrast.
+ * @contrast: 8 bit value in U8Q4 format.
+ *
+ * Value should be programmed before enabling the module.
+ **/
+void isppreview_config_contrast(u8 contrast)
+{
+ u32 brt_cnt_val = 0;
+
+ brt_cnt_val = isp_reg_readl(OMAP3_ISP_IOMEM_PREV, ISPPRV_CNT_BRT);
+ brt_cnt_val &= ~(0xFF << ISPPRV_CNT_BRT_CNT_SHIFT);
+ contrast &= 0xFF;
+ isp_reg_writel(brt_cnt_val | (contrast << ISPPRV_CNT_BRT_CNT_SHIFT),
+ OMAP3_ISP_IOMEM_PREV, ISPPRV_CNT_BRT);
+}
+EXPORT_SYMBOL(isppreview_config_contrast);
+
+/**
+ * isppreview_get_contrast_range - Gets the range contrast value.
+ * @min_contrast: Pointer to hold the minimum Contrast value.
+ * @max_contrast: Pointer to hold the maximum Contrast value.
+ **/
+void isppreview_get_contrast_range(u8 *min_contrast, u8 *max_contrast)
+{
+ *min_contrast = ISPPRV_CONTRAST_MIN;
+ *max_contrast = ISPPRV_CONTRAST_MAX;
+}
+EXPORT_SYMBOL(isppreview_get_contrast_range);
+
+/**
+ * isppreview_update_brightness - Updates the brightness in preview module.
+ * @brightness: Pointer to hold the current programmed brightness value.
+ *
+ **/
+void isppreview_update_brightness(u8 *brightness)
+{
+ ispprev_obj.brightness = *brightness;
+}
+EXPORT_SYMBOL(isppreview_update_brightness);
+
+/**
+ * isppreview_config_brightness - Configures the brightness.
+ * @contrast: 8bitvalue in U8Q0 format.
+ **/
+void isppreview_config_brightness(u8 brightness)
+{
+ u32 brt_cnt_val = 0;
+
+ DPRINTK_ISPPREV(" Configuring brightness in ISP: %d
", brightness);
+ brt_cnt_val = isp_reg_readl(OMAP3_ISP_IOMEM_PREV, ISPPRV_CNT_BRT);
+ brt_cnt_val &= ~(0xFF << ISPPRV_CNT_BRT_BRT_SHIFT);
+ brightness &= 0xFF;
+ isp_reg_writel(brt_cnt_val | (brightness << ISPPRV_CNT_BRT_BRT_SHIFT),
+ OMAP3_ISP_IOMEM_PREV, ISPPRV_CNT_BRT);
+}
+EXPORT_SYMBOL(isppreview_config_brightness);
+
+/**
+ * isppreview_query_brightness - Query the brightness.
+ * @brightness: Pointer to hold the current programmed brightness value.
+ **/
+void isppreview_query_brightness(u8 *brightness)
+{
+ *brightness = isp_reg_readl(OMAP3_ISP_IOMEM_PREV, ISPPRV_CNT_BRT);
+}
+EXPORT_SYMBOL(isppreview_query_brightness);
+
+/**
+ * isppreview_get_brightness_range - Gets the range brightness value
+ * @min_brightness: Pointer to hold the minimum brightness value
+ * @max_brightness: Pointer to hold the maximum brightness value
+ **/
+void isppreview_get_brightness_range(u8 *min_brightness, u8 *max_brightness)
+{
+ *min_brightness = ISPPRV_BRIGHT_MIN;
+ *max_brightness = ISPPRV_BRIGHT_MAX;
+}
+EXPORT_SYMBOL(isppreview_get_brightness_range);
+
+/**
+ * isppreview_set_color - Sets the color effect.
+ * @mode: Indicates the required color effect.
+ **/
+void isppreview_set_color(u8 *mode)
+{
+ ispprev_obj.color = *mode;
+ update_color_matrix = 1;
+}
+EXPORT_SYMBOL(isppreview_set_color);
+
+/**
+ * isppreview_get_color - Gets the current color effect.
+ * @mode: Indicates the current color effect.
+ **/
+void isppreview_get_color(u8 *mode)
+{
+ *mode = ispprev_obj.color;
+}
+EXPORT_SYMBOL(isppreview_get_color);
+
+/**
+ * isppreview_config_yc_range - Configures the max and min Y and C values.
+ * @yclimit: Structure containing the range of Y and C values.
+ **/
+void isppreview_config_yc_range(struct ispprev_yclimit yclimit)
+{
+ isp_reg_writel(((yclimit.maxC << ISPPRV_SETUP_YC_MAXC_SHIFT) |
+ (yclimit.maxY << ISPPRV_SETUP_YC_MAXY_SHIFT) |
+ (yclimit.minC << ISPPRV_SETUP_YC_MINC_SHIFT) |
+ (yclimit.minY << ISPPRV_SETUP_YC_MINY_SHIFT)),
+ OMAP3_ISP_IOMEM_PREV, ISPPRV_SETUP_YC);
+}
+EXPORT_SYMBOL(isppreview_config_yc_range);
+
+/**
+ * isppreview_try_size - Calculates output dimensions with the modules enabled.
+ * @input_w: input width for the preview in number of pixels per line
+ * @input_h: input height for the preview in number of lines
+ * @output_w: output width from the preview in number of pixels per line
+ * @output_h: output height for the preview in number of lines
+ *
+ * Calculates the number of pixels cropped in the submodules that are enabled,
+ * Fills up the output width height variables in the isp_prev structure.
+ **/
+int isppreview_try_size(u32 input_w, u32 input_h, u32 *output_w, u32 *output_h)
+{
+ u32 prevout_w = input_w;
+ u32 prevout_h = input_h;
+ u32 div = 0;
+ int max_out;
+
+ ispprev_obj.previn_w = input_w;
+ ispprev_obj.previn_h = input_h;
+
+ if (input_w < 32 || input_h < 32) {
+ printk(KERN_ERR "ISP_ERR : preview does not support "
+ "width < 16 or height < 32
");
+ return -EINVAL;
+ }
+ if (omap_rev() == OMAP3430_REV_ES1_0)
+ max_out = ISPPRV_MAXOUTPUT_WIDTH;
+ else
+ max_out = ISPPRV_MAXOUTPUT_WIDTH_ES2;
+
+ ispprev_obj.fmtavg = 0;
+
+ if (input_w max_out) {
+ div = (input_w/max_out);
+ if (div = 2 && div < 4) {
+ ispprev_obj.fmtavg = 1;
+ prevout_w /= 2;
+ } else if (div = 4 && div < 8) {
+ ispprev_obj.fmtavg = 2;
+ prevout_w /= 4;
+ } else if (div = 8) {
+ ispprev_obj.fmtavg = 3;
+ prevout_w /= 8;
+ }
+ }
+
+ if (ispprev_obj.hmed_en)
+ prevout_w -= 4;
+ if (ispprev_obj.nf_en) {
+ prevout_w -= 4;
+ prevout_h -= 4;
+ }
+ if (ispprev_obj.cfa_en) {
+ switch (ispprev_obj.cfafmt) {
+ case CFAFMT_BAYER:
+ case CFAFMT_SONYVGA:
+ prevout_w -= 4;
+ prevout_h -= 4;
+ break;
+ case CFAFMT_RGBFOVEON:
+ case CFAFMT_RRGGBBFOVEON:
+ case CFAFMT_DNSPL:
+ case CFAFMT_HONEYCOMB:
+ prevout_h -= 2;
+ break;
+ };
+ }
+ if (ispprev_obj.yenh_en || ispprev_obj.csup_en)
+ prevout_w -= 2;
+
+ /* Start at the correct row/column by skipping
+ * a Sensor specific amount.
+ */
+ prevout_w -= ispprev_obj.sph;
+ prevout_h -= ispprev_obj.slv;
+
+
+ if (prevout_w % 2)
+ prevout_w -= 1;
+
+ if (ispprev_obj.prev_outfmt == PREVIEW_MEM) {
+ if (((prevout_w * 2) & ISP_32B_BOUNDARY_OFFSET) !=
+ (prevout_w * 2)) {
+ prevout_w = ((prevout_w * 2) &
+ ISP_32B_BOUNDARY_OFFSET) / 2;
+ }
+ }
+ *output_w = prevout_w;
+ ispprev_obj.prevout_w = prevout_w;
+ *output_h = prevout_h;
+ ispprev_obj.prevout_h = prevout_h;
+ return 0;
+}
+EXPORT_SYMBOL(isppreview_try_size);
+
+/**
+ * isppreview_config_size - Sets the size of ISP preview output.
+ * @input_w: input width for the preview in number of pixels per line
+ * @input_h: input height for the preview in number of lines
+ * @output_w: output width from the preview in number of pixels per line
+ * @output_h: output height for the preview in number of lines
+ *
+ * Configures the appropriate values stored in the isp_prev structure to
+ * HORZ/VERT_INFO. Configures PRV_AVE if needed for downsampling as calculated
+ * in trysize.
+ **/
+int isppreview_config_size(u32 input_w, u32 input_h, u32 output_w, u32 output_h)
+{
+ u32 prevsdroff;
+
+ if ((output_w != ispprev_obj.prevout_w) ||
+ (output_h != ispprev_obj.prevout_h)) {
+ printk(KERN_ERR "ISP_ERR : isppreview_try_size should "
+ "be called before config size
");
+ return -EINVAL;
+ }
+
+ isp_reg_writel((ispprev_obj.sph << ISPPRV_HORZ_INFO_SPH_SHIFT) |
+ (ispprev_obj.previn_w - 1),
+ OMAP3_ISP_IOMEM_PREV, ISPPRV_HORZ_INFO);
+ isp_reg_writel((ispprev_obj.slv << ISPPRV_VERT_INFO_SLV_SHIFT) |
+ (ispprev_obj.previn_h - 1),
+ OMAP3_ISP_IOMEM_PREV, ISPPRV_VERT_INFO);
+
+ if (ispprev_obj.cfafmt == CFAFMT_BAYER)
+ isp_reg_writel(ISPPRV_AVE_EVENDIST_2 <<
+ ISPPRV_AVE_EVENDIST_SHIFT |
+ ISPPRV_AVE_ODDDIST_2 <<
+ ISPPRV_AVE_ODDDIST_SHIFT |
+ ispprev_obj.fmtavg,
+ OMAP3_ISP_IOMEM_PREV, ISPPRV_AVE);
+
+ if (ispprev_obj.prev_outfmt == PREVIEW_MEM) {
+ prevsdroff = ispprev_obj.prevout_w * 2;
+ if ((prevsdroff & ISP_32B_BOUNDARY_OFFSET) != prevsdroff) {
+ DPRINTK_ISPPREV("ISP_WARN: Preview output buffer line"
+ " size is truncated"
+ " to 32byte boundary
");
+ prevsdroff &= ISP_32B_BOUNDARY_BUF ;
+ }
+ isppreview_conf |
