Hi Sergio,
Here is a quick review of this code:
On Thursday 11 December 2008 21:37:55 Aguirre Rodriguez, Sergio Alberto wrote:
> >From 52128867152f13415f01b8d00f078350454cbb1f Mon Sep 17 00:00:00 2001
> From: Sergio Aguirre <saaguirre@xxxxxx>
> Date: Thu, 11 Dec 2008 13:35:50 -0600
> Subject: [PATCH] OMAP: CAM: Add ISP Front end
>
> This adds the OMAP ISP Front end modules to the kernel. Includes:
> * ISP CCDC Driver
>
> Signed-off-by: Sergio Aguirre <saaguirre@xxxxxx>
> ---
> drivers/media/video/isp/ispccdc.c | 1515 +++++++++++++++++++++++++++++++++++++
> drivers/media/video/isp/ispccdc.h | 206 +++++
> 2 files changed, 1721 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..e6452aa
> --- /dev/null
> +++ b/drivers/media/video/isp/ispccdc.c
> @@ -0,0 +1,1515 @@
> +/*
> + * drivers/media/video/isp/ispccdc.c
> + *
> + * Driver Library for CCDC module in TI's 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/mutex.h>
> +#include <linux/module.h>
> +#include <linux/errno.h>
> +#include <linux/sched.h>
> +#include <linux/delay.h>
> +#include <linux/types.h>
> +#include <asm/mach-types.h>
> +#include <linux/io.h>
> +#include <linux/scatterlist.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 int size_mismatch;
> +static u8 ccdc_use_lsc;
> +static u8 ispccdc_lsc_tbl[LSC_TABLE_INIT_SIZE];
> +
> +/* Structure for saving/restoring CCDC module registers*/
> +static struct isp_reg ispccdc_reg_list[] = {
> + {ISPCCDC_SYN_MODE, 0},
> + {ISPCCDC_HD_VD_WID, 0},
> + {ISPCCDC_PIX_LINES, 0},
> + {ISPCCDC_HORZ_INFO, 0},
> + {ISPCCDC_VERT_START, 0},
> + {ISPCCDC_VERT_LINES, 0},
> + {ISPCCDC_CULLING, 0},
> + {ISPCCDC_HSIZE_OFF, 0},
> + {ISPCCDC_SDOFST, 0},
> + {ISPCCDC_SDR_ADDR, 0},
> + {ISPCCDC_CLAMP, 0},
> + {ISPCCDC_DCSUB, 0},
> + {ISPCCDC_COLPTN, 0},
> + {ISPCCDC_BLKCMP, 0},
> + {ISPCCDC_FPC, 0},
> + {ISPCCDC_FPC_ADDR, 0},
> + {ISPCCDC_VDINT, 0},
> + {ISPCCDC_ALAW, 0},
> + {ISPCCDC_REC656IF, 0},
> + {ISPCCDC_CFG, 0},
> + {ISPCCDC_FMTCFG, 0},
> + {ISPCCDC_FMT_HORZ, 0},
> + {ISPCCDC_FMT_VERT, 0},
> + {ISPCCDC_FMT_ADDR0, 0},
> + {ISPCCDC_FMT_ADDR1, 0},
> + {ISPCCDC_FMT_ADDR2, 0},
> + {ISPCCDC_FMT_ADDR3, 0},
> + {ISPCCDC_FMT_ADDR4, 0},
> + {ISPCCDC_FMT_ADDR5, 0},
> + {ISPCCDC_FMT_ADDR6, 0},
> + {ISPCCDC_FMT_ADDR7, 0},
> + {ISPCCDC_PRGEVEN0, 0},
> + {ISPCCDC_PRGEVEN1, 0},
> + {ISPCCDC_PRGODD0, 0},
> + {ISPCCDC_PRGODD1, 0},
> + {ISPCCDC_VP_OUT, 0},
> + {ISPCCDC_LSC_CONFIG, 0},
> + {ISPCCDC_LSC_INITIAL, 0},
> + {ISPCCDC_LSC_TABLE_BASE, 0},
> + {ISPCCDC_LSC_TABLE_OFFSET, 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;
> + u32 old_size;
> +
> + if (userspace_add == NULL)
> + return -EINVAL;
> +
> + ccdc_struct = (struct ispccdc_update_config *) userspace_add;
> +
> + if ((ISP_ABS_CCDC_ALAW & ccdc_struct->flag) == ISP_ABS_CCDC_ALAW) {
ISP_ABS_CCDC_ALAW is a single bit flag, so why not do just:
if (ISP_ABS_CCDC_ALAW & ccdc_struct->flag) {
...
}
Much simpler and it doesn't cause such long lines.
> + if ((ISP_ABS_CCDC_ALAW & ccdc_struct->update) ==
> + ISP_ABS_CCDC_ALAW)
> + ispccdc_config_alaw(ccdc_struct->alawip);
> + ispccdc_enable_alaw(1);
> + } else if ((ISP_ABS_CCDC_ALAW & ccdc_struct->update) ==
> + ISP_ABS_CCDC_ALAW)
> + ispccdc_enable_alaw(0);
> +
> + if ((ISP_ABS_CCDC_LPF & ccdc_struct->flag) == ISP_ABS_CCDC_LPF)
> + ispccdc_enable_lpf(1);
> + else
> + ispccdc_enable_lpf(0);
You can replace this by a single line as well:
ispccdc_enable_lpf((ISP_ABS_CCDC_LPF & ccdc_struct->flag) ? 1 : 0);
> +
> + if ((ISP_ABS_CCDC_BLCLAMP & ccdc_struct->flag) ==
> + ISP_ABS_CCDC_BLCLAMP) {
> + if ((ISP_ABS_CCDC_BLCLAMP & ccdc_struct->update) ==
> + ISP_ABS_CCDC_BLCLAMP) {
> + 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) ==
> + ISP_ABS_CCDC_BLCLAMP) {
> + ispccdc_enable_black_clamp(0);
> + ispccdc_config_black_clamp(bclamp_t);
> + }
> + }
> +
> + if ((ISP_ABS_CCDC_BCOMP & ccdc_struct->update) == ISP_ABS_CCDC_BCOMP) {
> + 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) == ISP_ABS_CCDC_FPC) {
> + if ((ISP_ABS_CCDC_FPC & ccdc_struct->update) ==
> + ISP_ABS_CCDC_FPC) {
> + 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_map(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) ==
> + ISP_ABS_CCDC_FPC)
> + ispccdc_enable_fpc(0);
> +
> + if ((ISP_ABS_CCDC_CULL & ccdc_struct->update) == ISP_ABS_CCDC_CULL) {
> + 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) ==
> + ISP_ABS_CCDC_CONFIG_LSC) {
> + if ((ISP_ABS_CCDC_CONFIG_LSC & ccdc_struct->update) ==
> + ISP_ABS_CCDC_CONFIG_LSC) {
> + old_size = lsc_config.size;
> + if (copy_from_user(&lsc_config,
> + (struct ispccdc_lsc_config *)
> + (ccdc_struct->lsc_cfg),
> + sizeof(struct
> + ispccdc_lsc_config)))
> + goto copy_from_user_err;
> + lsc_initialized = 0;
> + if (lsc_config.size <= old_size)
> + size_mismatch = 0;
> + else
> + size_mismatch = 1;
> + ispccdc_config_lsc(&lsc_config);
> + }
> + ccdc_use_lsc = 1;
> + } else if ((ISP_ABS_CCDC_CONFIG_LSC & ccdc_struct->update) ==
> + ISP_ABS_CCDC_CONFIG_LSC) {
> + ispccdc_enable_lsc(0);
> + ccdc_use_lsc = 0;
> + }
> + if ((ISP_ABS_TBL_LSC & ccdc_struct->update)
> + == ISP_ABS_TBL_LSC) {
> + if (size_mismatch) {
> + ispmmu_unmap(lsc_ispmmu_addr);
> + kfree(lsc_gain_table);
> + lsc_gain_table = kmalloc(
> + lsc_config.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_map(
> + virt_to_phys(lsc_gain_table),
> + lsc_config.size);
> + omap_writel(lsc_ispmmu_addr,
> + ISPCCDC_LSC_TABLE_BASE);
> + lsc_initialized = 1;
> + size_mismatch = 0;
> + }
> + if (copy_from_user(lsc_gain_table,
> + (ccdc_struct->lsc), lsc_config.size))
> + goto copy_from_user_err;
> + }
> + }
> +
> + if ((ISP_ABS_CCDC_COLPTN & ccdc_struct->update) == ISP_ABS_CCDC_COLPTN)
> + 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);
This omap34xx_isp_ccdc_config function should probably be split up in
smaller functions: it is very hard to read due to the many levels of
indentation. Especially if a lot of work has to be done for a certain
config flag I would do that in the separate function.
> +
> +/**
> + * 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);
> + omap_writel((omap_readl(ISP_CTRL)) | ISPCTRL_CCDC_RAM_EN |
> + ISPCTRL_CCDC_CLK_EN |
> + ISPCTRL_SBL_WR1_RAM_EN,
> + ISP_CTRL);
> + omap_writel((omap_readl(ISPCCDC_CFG)) | ISPCCDC_CFG_VDLC, ISPCCDC_CFG);
> + 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);
> + omap_writel((omap_readl(ISP_CTRL)) & ~(ISPCTRL_CCDC_CLK_EN |
> + ISPCTRL_CCDC_RAM_EN |
> + ISPCTRL_SBL_WR1_RAM_EN),
> + ISP_CTRL);
> + return 0;
> +}
> +EXPORT_SYMBOL(ispccdc_free);
> +
> +/**
> + * ispccdc_load_lsc - Load Lens Shading Compensation table.
> + * @table_size: LSC gain table size.
> + *
> + * Returns 0 if successful, or -ENOMEM of its no memory available.
> + **/
> +int ispccdc_load_lsc(u32 table_size)
> +{
> + if (!is_isplsc_activated())
> + return 0;
> +
> + if (table_size == 0)
> + return -EINVAL;
> +
> + if (lsc_initialized)
> + return 0;
> +
> + ispccdc_enable_lsc(0);
> + 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;
> + }
> +
> + memcpy(lsc_gain_table, ispccdc_lsc_tbl, table_size);
> + lsc_ispmmu_addr = ispmmu_map(virt_to_phys(lsc_gain_table), table_size);
> + omap_writel(lsc_ispmmu_addr, ISPCCDC_LSC_TABLE_BASE);
> + lsc_initialized = 1;
> + 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);
> + omap_writel(lsc_cfg->offset, 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);
> + omap_writel(reg, 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);
> + omap_writel(reg, 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) {
> + omap_writel(omap_readl(ISP_CTRL) | ISPCTRL_SBL_SHARED_RPORTB |
> + ISPCTRL_SBL_RD_RAM_EN, ISP_CTRL);
> + omap_writel(omap_readl(ISPCCDC_LSC_CONFIG) | 0x1,
> + ISPCCDC_LSC_CONFIG);
> + ispccdc_obj.lsc_en = 1;
> + } else {
> + omap_writel(omap_readl(ISPCCDC_LSC_CONFIG) & 0xFFFE,
> + ISPCCDC_LSC_CONFIG);
> + 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 + 1) % 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 = omap_readl(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;
> + omap_writel((omap_readl(ISPCCDC_CFG)) & ~ISPCCDC_CFG_WENLOG,
> + ISPCCDC_CFG);
> + 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;
> + omap_writel((omap_readl(ISPCCDC_CFG) & ~ISPCCDC_CFG_WENLOG) |
> + ispccdc_obj.wenlog, ISPCCDC_CFG);
> + 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;
> + };
> +
> + omap_writel(syn_mode, 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 = 42;
> + ispccdc_config_black_clamp(blkcfg);
> + if (is_isplsc_activated()) {
> + ispccdc_config_lsc(&lsc_config);
> + ispccdc_load_lsc((u32)sizeof(ispccdc_lsc_tbl));
> + }
> +
> + 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 = 0;
> + 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 = omap_readl(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;
> + omap_writel((syncif.hs_width << ISPCCDC_HD_VD_WID_HDW_SHIFT)
> + | (syncif.vs_width <<
> + ISPCCDC_HD_VD_WID_VDW_SHIFT),
> + ISPCCDC_HD_VD_WID);
> +
> + omap_writel(syncif.ppln << ISPCCDC_PIX_LINES_PPLN_SHIFT
> + | syncif.hlprf << ISPCCDC_PIX_LINES_HLPRF_SHIFT,
> + ISPCCDC_PIX_LINES);
> + } else
> + syn_mode &= ~(ISPCCDC_SYN_MODE_FLDOUT |
> + ISPCCDC_SYN_MODE_VDHDOUT);
> +
> + omap_writel(syn_mode, ISPCCDC_SYN_MODE);
> +
> + if (!(syncif.bt_r656_en)) {
> + omap_writel((omap_readl(ISPCCDC_REC656IF)) &
> + ~ISPCCDC_REC656IF_R656ON,
> + ISPCCDC_REC656IF);
> + }
> +}
> +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;
> + omap_writel(bclamp_val, ISPCCDC_CLAMP);
> + } else {
> + if (omap_rev() < OMAP3430_REV_ES2_0)
> + if ((ispccdc_obj.syncif_ipmod == YUV16) ||
> + (ispccdc_obj.syncif_ipmod == YUV8) ||
> + ((omap_readl(ISPCCDC_REC656IF) &
> + ISPCCDC_REC656IF_R656ON) ==
> + ISPCCDC_REC656IF_R656ON))
> + bclamp.dcsubval = 0;
> + omap_writel(bclamp.dcsubval, 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)
> +{
> + if (enable) {
> + omap_writel((omap_readl(ISPCCDC_CLAMP))|ISPCCDC_CLAMP_CLAMPEN,
> + ISPCCDC_CLAMP);
> + ispccdc_obj.obclamp_en = 1;
> + } else {
> + omap_writel((omap_readl(ISPCCDC_CLAMP)) &
> + ~ISPCCDC_CLAMP_CLAMPEN, ISPCCDC_CLAMP);
> + ispccdc_obj.obclamp_en = 0;
> + }
> +}
I often find it very useful to introduce a simple helper function like this:
void inline omap_and_or(u32 reg, u32 and, u32 or)
{
u32 v = omap_readl(reg);
omap_writel(reg, (v & and) | or);
}
Then function ispccdc_enable_black_clamp can be written like:
omap_and_or(ISPCCDC_CLAMP, ~ISPCCDC_CLAMP_CLAMPEN,
enable ? ISPCCDC_CLAMP_CLAMPEN : 0);
ispccdc_obj.obclamp_en = enable;
It can be used in many similar cases as well.
Regards,
Hans
> +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 = omap_readl(ISPCCDC_FPC);
> +
> + if ((fpc.fpcaddr & 0xFFFFFFC0) == fpc.fpcaddr) {
> + omap_writel(fpc_val&(~ISPCCDC_FPC_FPCEN), ISPCCDC_FPC);
> + omap_writel(fpc.fpcaddr, ISPCCDC_FPC_ADDR);
> + } else {
> + DPRINTK_ISPCCDC("FPC Address should be on 64byte boundary\n");
> + return -EINVAL;
> + }
> + omap_writel(fpc_val | (fpc.fpnum << ISPCCDC_FPC_FPNUM_SHIFT),
> + 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)
> +{
> + if (enable) {
> + omap_writel(omap_readl(ISPCCDC_FPC) | ISPCCDC_FPC_FPCEN,
> + ISPCCDC_FPC);
> + } else {
> + omap_writel(omap_readl(ISPCCDC_FPC) & ~ISPCCDC_FPC_FPCEN,
> + ISPCCDC_FPC);
> + }
> +}
> +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;
> +
> + omap_writel(blcomp_val, 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 = omap_readl(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;
> + };
> + omap_writel(fmtcfg_vp, 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)
> +{
> + if (enable) {
> + omap_writel((omap_readl(ISPCCDC_FMTCFG)) |
> + ISPCCDC_FMTCFG_VPEN, ISPCCDC_FMTCFG);
> + } else {
> + omap_writel(omap_readl(ISPCCDC_FMTCFG) &
> + ~ISPCCDC_FMTCFG_VPEN, ISPCCDC_FMTCFG);
> + }
> +}
> +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 = omap_readl(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;
> +
> + omap_writel(refmt.prgeven0, ISPCCDC_PRGEVEN0);
> + omap_writel(refmt.prgeven1, ISPCCDC_PRGEVEN1);
> + omap_writel(refmt.prgodd0, ISPCCDC_PRGODD0);
> + omap_writel(refmt.prgodd1, ISPCCDC_PRGODD1);
> + omap_writel(refmt.fmtaddr0, ISPCCDC_FMT_ADDR0);
> + omap_writel(refmt.fmtaddr1, ISPCCDC_FMT_ADDR1);
> + omap_writel(refmt.fmtaddr2, ISPCCDC_FMT_ADDR2);
> + omap_writel(refmt.fmtaddr3, ISPCCDC_FMT_ADDR3);
> + omap_writel(refmt.fmtaddr4, ISPCCDC_FMT_ADDR4);
> + omap_writel(refmt.fmtaddr5, ISPCCDC_FMT_ADDR5);
> + omap_writel(refmt.fmtaddr6, ISPCCDC_FMT_ADDR6);
> + omap_writel(refmt.fmtaddr7, ISPCCDC_FMT_ADDR7);
> + }
> + omap_writel(fmtcfg_val, 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)
> +{
> + if (enable) {
> + omap_writel((omap_readl(ISPCCDC_FMTCFG)) |
> + ISPCCDC_FMTCFG_FMTEN,
> + ISPCCDC_FMTCFG);
> + ispccdc_obj.refmt_en = 1;
> + } else {
> + omap_writel((omap_readl(ISPCCDC_FMTCFG)) &
> + ~ISPCCDC_FMTCFG_FMTEN,
> + ISPCCDC_FMTCFG);
> + ispccdc_obj.refmt_en = 0;
> + }
> +}
> +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;
> +
> + omap_writel(culling_val, 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)
> +{
> + if (enable) {
> + omap_writel(omap_readl(ISPCCDC_SYN_MODE) |
> + ISPCCDC_SYN_MODE_LPF,
> + ISPCCDC_SYN_MODE);
> + } else {
> + omap_writel(omap_readl(ISPCCDC_SYN_MODE) &
> + ~ISPCCDC_SYN_MODE_LPF,
> + ISPCCDC_SYN_MODE);
> + }
> +}
> +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)
> +{
> + omap_writel(ipwidth << ISPCCDC_ALAW_GWDI_SHIFT, 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)
> +{
> + if (enable) {
> + omap_writel((omap_readl(ISPCCDC_ALAW)) | ISPCCDC_ALAW_CCDTBL,
> + ISPCCDC_ALAW);
> + } else {
> + omap_writel((omap_readl(ISPCCDC_ALAW)) & ~ISPCCDC_ALAW_CCDTBL,
> + ISPCCDC_ALAW);
> + }
> +}
> +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)
> +{
> + omap_writel(colptn, 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) {
> + omap_writel((ispccdc_obj.ccdcin_woffset <<
> + ISPCCDC_FMT_HORZ_FMTSPH_SHIFT) |
> + (ispccdc_obj.ccdcin_w <<
> + ISPCCDC_FMT_HORZ_FMTLNH_SHIFT),
> + ISPCCDC_FMT_HORZ);
> + omap_writel((ispccdc_obj.ccdcin_hoffset <<
> + ISPCCDC_FMT_VERT_FMTSLV_SHIFT) |
> + (ispccdc_obj.ccdcin_h <<
> + ISPCCDC_FMT_VERT_FMTLNV_SHIFT),
> + ISPCCDC_FMT_VERT);
> + omap_writel((ispccdc_obj.ccdcout_w <<
> + ISPCCDC_VP_OUT_HORZ_NUM_SHIFT) |
> + (ispccdc_obj.ccdcout_h <<
> + ISPCCDC_VP_OUT_VERT_NUM_SHIFT),
> + ISPCCDC_VP_OUT);
> + omap_writel((((ispccdc_obj.ccdcout_h - 25) &
> + ISPCCDC_VDINT_0_MASK) <<
> + ISPCCDC_VDINT_0_SHIFT) |
> + ((50 & ISPCCDC_VDINT_1_MASK) <<
> + ISPCCDC_VDINT_1_SHIFT), ISPCCDC_VDINT);
> +
> + } else if (ispccdc_obj.ccdc_outfmt == CCDC_OTHERS_MEM) {
> + omap_writel(0, ISPCCDC_VP_OUT);
> + if (cpu_is_omap3410()) {
> + omap_writel(0 << ISPCCDC_HORZ_INFO_SPH_SHIFT |
> + ((ispccdc_obj.ccdcout_w - 1) <<
> + ISPCCDC_HORZ_INFO_NPH_SHIFT),
> + ISPCCDC_HORZ_INFO);
> + } else {
> + if (ispccdc_obj.ccdc_inpfmt == CCDC_RAW) {
> + omap_writel(1 << ISPCCDC_HORZ_INFO_SPH_SHIFT
> + | ((ispccdc_obj.ccdcout_w - 1)
> + << ISPCCDC_HORZ_INFO_NPH_SHIFT),
> + ISPCCDC_HORZ_INFO);
> + } else {
> + omap_writel(0 << ISPCCDC_HORZ_INFO_SPH_SHIFT
> + | ((ispccdc_obj.ccdcout_w - 1)
> + << ISPCCDC_HORZ_INFO_NPH_SHIFT),
> + ISPCCDC_HORZ_INFO);
> + }
> + }
> + omap_writel(0 << ISPCCDC_VERT_START_SLV0_SHIFT,
> + ISPCCDC_VERT_START);
> + omap_writel((ispccdc_obj.ccdcout_h - 1) <<
> + ISPCCDC_VERT_LINES_NLV_SHIFT,
> + ISPCCDC_VERT_LINES);
> +
> + ispccdc_config_outlineoffset(ispccdc_obj.ccdcout_w * 2, 0, 0);
> + omap_writel((((ispccdc_obj.ccdcout_h - 2) &
> + ISPCCDC_VDINT_0_MASK) <<
> + ISPCCDC_VDINT_0_SHIFT) |
> + ((50 & ISPCCDC_VDINT_1_MASK) <<
> + ISPCCDC_VDINT_1_SHIFT), ISPCCDC_VDINT);
> + } else if (ispccdc_obj.ccdc_outfmt == CCDC_OTHERS_VP_MEM) {
> + omap_writel((1 << ISPCCDC_FMT_HORZ_FMTSPH_SHIFT) |
> + (ispccdc_obj.ccdcin_w <<
> + ISPCCDC_FMT_HORZ_FMTLNH_SHIFT),
> + ISPCCDC_FMT_HORZ);
> + omap_writel((0 << ISPCCDC_FMT_VERT_FMTSLV_SHIFT) |
> + ((ispccdc_obj.ccdcin_h) <<
> + ISPCCDC_FMT_VERT_FMTLNV_SHIFT),
> + ISPCCDC_FMT_VERT);
> + omap_writel((ispccdc_obj.ccdcout_w
> + << ISPCCDC_VP_OUT_HORZ_NUM_SHIFT) |
> + (ispccdc_obj.ccdcout_h <<
> + ISPCCDC_VP_OUT_VERT_NUM_SHIFT),
> + ISPCCDC_VP_OUT);
> + omap_writel(0 << ISPCCDC_HORZ_INFO_SPH_SHIFT |
> + ((ispccdc_obj.ccdcout_w - 1) <<
> + ISPCCDC_HORZ_INFO_NPH_SHIFT),
> + ISPCCDC_HORZ_INFO);
> + omap_writel(0 << ISPCCDC_VERT_START_SLV0_SHIFT,
> + ISPCCDC_VERT_START);
> + omap_writel((ispccdc_obj.ccdcout_h - 1) <<
> + ISPCCDC_VERT_LINES_NLV_SHIFT,
> + ISPCCDC_VERT_LINES);
> + ispccdc_config_outlineoffset(ispccdc_obj.ccdcout_w * 2, 0, 0);
> + omap_writel((((ispccdc_obj.ccdcout_h - 25) &
> + ISPCCDC_VDINT_0_MASK) <<
> + ISPCCDC_VDINT_0_SHIFT) |
> + ((50 & ISPCCDC_VDINT_1_MASK) <<
> + ISPCCDC_VDINT_1_SHIFT), ISPCCDC_VDINT);
> + }
> +
> + if (is_isplsc_activated()) {
> + if (ispccdc_obj.ccdc_inpfmt == CCDC_RAW) {
> + ispccdc_config_lsc(&lsc_config);
> + ispccdc_load_lsc(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)
> + omap_writel((offset & 0xFFFF), ISPCCDC_HSIZE_OFF);
> + else {
> + DPRINTK_ISPCCDC("ISP_ERR : Offset should be in 32 byte"
> + " boundary");
> + return -EINVAL;
> + }
> +
> + omap_writel((omap_readl(ISPCCDC_SDOFST) & (~ISPCCDC_SDOFST_FINV)),
> + ISPCCDC_SDOFST);
> +
> + omap_writel(omap_readl(ISPCCDC_SDOFST) & ISPCCDC_SDOFST_FOFST_1L,
> + ISPCCDC_SDOFST);
> +
> + switch (oddeven) {
> + case EVENEVEN:
> + omap_writel((omap_readl(ISPCCDC_SDOFST)) | ((numlines & 0x7) <<
> + ISPCCDC_SDOFST_LOFST0_SHIFT),
> + ISPCCDC_SDOFST);
> + break;
> + case ODDEVEN:
> + omap_writel((omap_readl(ISPCCDC_SDOFST)) | ((numlines & 0x7) <<
> + ISPCCDC_SDOFST_LOFST1_SHIFT),
> + ISPCCDC_SDOFST);
> + break;
> + case EVENODD:
> + omap_writel((omap_readl(ISPCCDC_SDOFST)) | ((numlines & 0x7) <<
> + ISPCCDC_SDOFST_LOFST2_SHIFT),
> + ISPCCDC_SDOFST);
> + break;
> + case ODDODD:
> + omap_writel((omap_readl(ISPCCDC_SDOFST)) | ((numlines & 0x7) <<
> + ISPCCDC_SDOFST_LOFST3_SHIFT),
> + ISPCCDC_SDOFST);
> + 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) {
> + omap_writel(addr, 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 (enable) {
> + if (ccdc_use_lsc && !ispccdc_obj.lsc_en &&
> + (ispccdc_obj.ccdc_inpfmt == CCDC_RAW))
> + ispccdc_enable_lsc(1);
> +
> + omap_writel(omap_readl(ISPCCDC_PCR) | (ISPCCDC_PCR_EN),
> + ISPCCDC_PCR);
> + } else {
> + omap_writel(omap_readl(ISPCCDC_PCR) & ~(ISPCCDC_PCR_EN),
> + ISPCCDC_PCR);
> + }
> +
> +}
> +EXPORT_SYMBOL(ispccdc_enable);
> +
> +/**
> + * ispccdc_busy - Gets busy state of the CCDC.
> + **/
> +int ispccdc_busy(void)
> +{
> + return omap_readl(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", omap_readl(ISPCCDC_PCR));
> + DPRINTK_ISPCCDC("ISP_CTRL =0x%x\n", omap_readl(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", omap_readl(ISP_CTRL));
> + DPRINTK_ISPCCDC("###ISP_IRQ0ENABLE in ccdc =0x%x\n",
> + omap_readl(ISP_IRQ0ENABLE));
> + DPRINTK_ISPCCDC("###ISP_IRQ0STATUS in ccdc =0x%x\n",
> + omap_readl(ISP_IRQ0STATUS));
> + DPRINTK_ISPCCDC("###CCDC SYN_MODE=0x%x\n",
> + omap_readl(ISPCCDC_SYN_MODE));
> + DPRINTK_ISPCCDC("###CCDC HORZ_INFO=0x%x\n",
> + omap_readl(ISPCCDC_HORZ_INFO));
> + DPRINTK_ISPCCDC("###CCDC VERT_START=0x%x\n",
> + omap_readl(ISPCCDC_VERT_START));
> + DPRINTK_ISPCCDC("###CCDC VERT_LINES=0x%x\n",
> + omap_readl(ISPCCDC_VERT_LINES));
> + DPRINTK_ISPCCDC("###CCDC CULLING=0x%x\n", omap_readl(ISPCCDC_CULLING));
> + DPRINTK_ISPCCDC("###CCDC HSIZE_OFF=0x%x\n",
> + omap_readl(ISPCCDC_HSIZE_OFF));
> + DPRINTK_ISPCCDC("###CCDC SDOFST=0x%x\n", omap_readl(ISPCCDC_SDOFST));
> + DPRINTK_ISPCCDC("###CCDC SDR_ADDR=0x%x\n",
> + omap_readl(ISPCCDC_SDR_ADDR));
> + DPRINTK_ISPCCDC("###CCDC CLAMP=0x%x\n", omap_readl(ISPCCDC_CLAMP));
> + DPRINTK_ISPCCDC("###CCDC COLPTN=0x%x\n", omap_readl(ISPCCDC_COLPTN));
> + DPRINTK_ISPCCDC("###CCDC CFG=0x%x\n", omap_readl(ISPCCDC_CFG));
> + DPRINTK_ISPCCDC("###CCDC VP_OUT=0x%x\n", omap_readl(ISPCCDC_VP_OUT));
> + DPRINTK_ISPCCDC("###CCDC_SDR_ADDR= 0x%x\n",
> + omap_readl(ISPCCDC_SDR_ADDR));
> + DPRINTK_ISPCCDC("###CCDC FMTCFG=0x%x\n", omap_readl(ISPCCDC_FMTCFG));
> + DPRINTK_ISPCCDC("###CCDC FMT_HORZ=0x%x\n",
> + omap_readl(ISPCCDC_FMT_HORZ));
> + DPRINTK_ISPCCDC("###CCDC FMT_VERT=0x%x\n",
> + omap_readl(ISPCCDC_FMT_VERT));
> + DPRINTK_ISPCCDC("###CCDC LSC_CONFIG=0x%x\n",
> + omap_readl(ISPCCDC_LSC_CONFIG));
> + DPRINTK_ISPCCDC("###CCDC LSC_INIT=0x%x\n",
> + omap_readl(ISPCCDC_LSC_INITIAL));
> + DPRINTK_ISPCCDC("###CCDC LSC_TABLE BASE=0x%x\n",
> + omap_readl(ISPCCDC_LSC_TABLE_BASE));
> + DPRINTK_ISPCCDC("###CCDC LSC TABLE OFFSET=0x%x\n",
> + omap_readl(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()) {
> + memset(ispccdc_lsc_tbl, 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()) {
> + if (lsc_initialized) {
> + ispmmu_unmap(lsc_ispmmu_addr);
> + kfree(lsc_gain_table);
> + lsc_initialized = 0;
> + }
> + }
> +
> + if (fpc_table_add_m != 0) {
> + ispmmu_unmap(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..eb6868d
> --- /dev/null
> +++ b/drivers/media/video/isp/ispccdc.h
> @@ -0,0 +1,206 @@
> +/*
> + * drivers/media/video/isp/ispccdc.h
> + *
> + * Driver header file for CCDC module in TI's 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.
> + */
> +
> +#ifndef OMAP_ISP_CCDC_H
> +#define OMAP_ISP_CCDC_H
> +
> +#include <mach/isp_user.h>
> +
> +#ifndef CONFIG_ARCH_OMAP3410
> +# define cpu_is_omap3410() 0
> +# define is_isplsc_activated() 1
> +#else
> +# define cpu_is_omap3410() 1
> +# define is_isplsc_activated() 0
> +#endif
> +
> +/* 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(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_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
>
>
> --
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>
--
Hans Verkuil - video4linux developer - sponsored by TANDBERG
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