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nuttx/drivers/video/ov2640.c

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/****************************************************************************
* drivers/video/ov2640.c
* OV2640 Color CMOS UXGA (2.0 MegaPixel) CameraChip
*
* Copyright (C) 2013 Gregory Nutt. All rights reserved.
* Author: Gregory Nutt <gnutt@nuttx.org>
*
* WARNING: Some of the information in the data tables below came from other
* projects with conflicting licenses: Linux and ArduCAM. Those both have
* GPL licenses. I am not sure if it is proper or not to lift the content
* of those tables and still retain this BSD license. I am guessing so, but
* I am not copyright attorney so you should use this driver in products at
* your own risk.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
* 3. Neither the name NuttX nor the names of its contributors may be
* used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*
****************************************************************************/
/****************************************************************************
* Included Files
****************************************************************************/
#include <nuttx/config.h>
#include <sys/types.h>
#include <string.h>
#include <errno.h>
#include <debug.h>
#include <nuttx/arch.h>
#include <nuttx/i2c/i2c_master.h>
#include <nuttx/video/ov2640.h>
/****************************************************************************
* Pre-processor Definitions
****************************************************************************/
/* 7-bit I2C address. Default: 0x21 */
#ifndef CONFIG_OV2640_I2CADDR
# define CONFIG_OV2640_I2CADDR 0x21
#endif
#ifdef CONFIG_OV2640_JPEG
# undef CONFIG_OV2640_QCIF_RESOLUTION
# undef CONFIG_OV2640_QVGA_RESOLUTION
# undef CONFIG_OV2640_CIF_RESOLUTION
# undef CONFIG_OV2640_VGA_RESOLUTION
# undef CONFIG_OV2640_SVGA_RESOLUTION
# undef CONFIG_OV2640_XVGA_RESOLUTION
# undef CONFIG_OV2640_SXGA_RESOLUTION
# undef CONFIG_OV2640_UXGA_RESOLUTION
#else
# undef CONFIG_OV2640_JPEG_QCIF_RESOLUTION
# undef CONFIG_OV2640_JPEG_QVGA_RESOLUTION
# undef CONFIG_OV2640_JPEG_CIF_RESOLUTION
# undef CONFIG_OV2640_JPEG_VGA_RESOLUTION
# undef CONFIG_OV2640_JPEG_SVGA_RESOLUTION
# undef CONFIG_OV2640_JPEG_XVGA_RESOLUTION
# undef CONFIG_OV2640_JPEG_SXVGA_RESOLUTION
# undef CONFIG_OV2640_JPEG_UXGA_RESOLUTION
#endif
#if defined(CONFIG_OV2640_QCIF_RESOLUTION) || \
defined(CONFIG_OV2640_JPEG_QCIF_RESOLUTION)
# define OV2460_IMAGE_WIDTH 176
# define OV2460_IMAGE_HEIGHT 144
# undef CONFIG_OV2640_QVGA_RESOLUTION
# undef CONFIG_OV2640_JPEG_QVGA_RESOLUTION
# undef CONFIG_OV2640_CIF_RESOLUTION
# undef CONFIG_OV2640_JPEG_CIF_RESOLUTION
# undef CONFIG_OV2640_VGA_RESOLUTION
# undef CONFIG_OV2640_JPEG_VGA_RESOLUTION
# undef CONFIG_OV2640_SVGA_RESOLUTION
# undef CONFIG_OV2640_JPEG_SVGA_RESOLUTION
# undef CONFIG_OV2640_XVGA_RESOLUTION
# undef CONFIG_OV2640_JPEG_XVGA_RESOLUTION
# undef CONFIG_OV2640_SXGA_RESOLUTION
# undef CONFIG_OV2640_JPEG_SXVGA_RESOLUTION
# undef CONFIG_OV2640_UXGA_RESOLUTION
# undef CONFIG_OV2640_JPEG_UXGA_RESOLUTION
#elif defined(CONFIG_OV2640_QVGA_RESOLUTION) || \
defined(CONFIG_OV2640_JPEG_QVGA_RESOLUTION)
# define OV2460_IMAGE_WIDTH 320
# define OV2460_IMAGE_HEIGHT 240
# undef CONFIG_OV2640_QCIF_RESOLUTION
# undef CONFIG_OV2640_JPEG_QCIF_RESOLUTION
# undef CONFIG_OV2640_CIF_RESOLUTION
# undef CONFIG_OV2640_JPEG_CIF_RESOLUTION
# undef CONFIG_OV2640_VGA_RESOLUTION
# undef CONFIG_OV2640_JPEG_VGA_RESOLUTION
# undef CONFIG_OV2640_SVGA_RESOLUTION
# undef CONFIG_OV2640_JPEG_SVGA_RESOLUTION
# undef CONFIG_OV2640_XVGA_RESOLUTION
# undef CONFIG_OV2640_JPEG_XVGA_RESOLUTION
# undef CONFIG_OV2640_SXGA_RESOLUTION
# undef CONFIG_OV2640_JPEG_SXVGA_RESOLUTION
# undef CONFIG_OV2640_UXGA_RESOLUTION
# undef CONFIG_OV2640_JPEG_UXGA_RESOLUTION
#elif defined(CONFIG_OV2640_CIF_RESOLUTION) || \
defined(CONFIG_OV2640_JPEG_CIF_RESOLUTION)
# define OV2460_IMAGE_WIDTH 352
# define OV2460_IMAGE_HEIGHT 288
# undef CONFIG_OV2640_QCIF_RESOLUTION
# undef CONFIG_OV2640_JPEG_QCIF_RESOLUTION
# undef CONFIG_OV2640_QVGA_RESOLUTION
# undef CONFIG_OV2640_JPEG_QVGA_RESOLUTION
# undef CONFIG_OV2640_VGA_RESOLUTION
# undef CONFIG_OV2640_JPEG_VGA_RESOLUTION
# undef CONFIG_OV2640_SVGA_RESOLUTION
# undef CONFIG_OV2640_JPEG_SVGA_RESOLUTION
# undef CONFIG_OV2640_XVGA_RESOLUTION
# undef CONFIG_OV2640_JPEG_XVGA_RESOLUTION
# undef CONFIG_OV2640_SXGA_RESOLUTION
# undef CONFIG_OV2640_JPEG_SXVGA_RESOLUTION
# undef CONFIG_OV2640_UXGA_RESOLUTION
# undef CONFIG_OV2640_JPEG_UXGA_RESOLUTION
#elif defined(CONFIG_OV2640_VGA_RESOLUTION) || \
defined(CONFIG_OV2640_JPEG_VGA_RESOLUTION)
# define OV2460_IMAGE_WIDTH 640
# define OV2460_IMAGE_HEIGHT 480
# undef CONFIG_OV2640_QCIF_RESOLUTION
# undef CONFIG_OV2640_JPEG_QCIF_RESOLUTION
# undef CONFIG_OV2640_QVGA_RESOLUTION
# undef CONFIG_OV2640_JPEG_QVGA_RESOLUTION
# undef CONFIG_OV2640_CIF_RESOLUTION
# undef CONFIG_OV2640_JPEG_CIF_RESOLUTION
# undef CONFIG_OV2640_SVGA_RESOLUTION
# undef CONFIG_OV2640_JPEG_SVGA_RESOLUTION
# undef CONFIG_OV2640_XVGA_RESOLUTION
# undef CONFIG_OV2640_JPEG_XVGA_RESOLUTION
# undef CONFIG_OV2640_SXGA_RESOLUTION
# undef CONFIG_OV2640_JPEG_SXVGA_RESOLUTION
# undef CONFIG_OV2640_UXGA_RESOLUTION
# undef CONFIG_OV2640_JPEG_UXGA_RESOLUTION
#elif defined(CONFIG_OV2640_SVGA_RESOLUTION) || \
defined(CONFIG_OV2640_JPEG_SVGA_RESOLUTION)
# define OV2460_IMAGE_WIDTH 800
# define OV2460_IMAGE_HEIGHT 600
# undef CONFIG_OV2640_QCIF_RESOLUTION
# undef CONFIG_OV2640_JPEG_QCIF_RESOLUTION
# undef CONFIG_OV2640_QVGA_RESOLUTION
# undef CONFIG_OV2640_JPEG_QVGA_RESOLUTION
# undef CONFIG_OV2640_CIF_RESOLUTION
# undef CONFIG_OV2640_JPEG_CIF_RESOLUTION
# undef CONFIG_OV2640_VGA_RESOLUTION
# undef CONFIG_OV2640_JPEG_VGA_RESOLUTION
# undef CONFIG_OV2640_XVGA_RESOLUTION
# undef CONFIG_OV2640_JPEG_XVGA_RESOLUTION
# undef CONFIG_OV2640_SXGA_RESOLUTION
# undef CONFIG_OV2640_JPEG_SXVGA_RESOLUTION
# undef CONFIG_OV2640_UXGA_RESOLUTION
# undef CONFIG_OV2640_JPEG_UXGA_RESOLUTION
#elif defined(CONFIG_OV2640_XVGA_RESOLUTION) || \
defined(CONFIG_OV2640_JPEG_XVGA_RESOLUTION)
# define OV2460_IMAGE_WIDTH 1024
# define OV2460_IMAGE_HEIGHT 768
# undef CONFIG_OV2640_QCIF_RESOLUTION
# undef CONFIG_OV2640_JPEG_QCIF_RESOLUTION
# undef CONFIG_OV2640_QVGA_RESOLUTION
# undef CONFIG_OV2640_JPEG_QVGA_RESOLUTION
# undef CONFIG_OV2640_CIF_RESOLUTION
# undef CONFIG_OV2640_JPEG_CIF_RESOLUTION
# undef CONFIG_OV2640_VGA_RESOLUTION
# undef CONFIG_OV2640_JPEG_VGA_RESOLUTION
# undef CONFIG_OV2640_SVGA_RESOLUTION
# undef CONFIG_OV2640_JPEG_SVGA_RESOLUTION
# undef CONFIG_OV2640_SXGA_RESOLUTION
# undef CONFIG_OV2640_JPEG_SXVGA_RESOLUTION
# undef CONFIG_OV2640_UXGA_RESOLUTION
# undef CONFIG_OV2640_JPEG_UXGA_RESOLUTION
#elif defined(CONFIG_OV2640_SXGA_RESOLUTION) || \
defined(CONFIG_OV2640_JPEG_SXVGA_RESOLUTION)
# define OV2460_IMAGE_WIDTH 1280
# define OV2460_IMAGE_HEIGHT 1024
# undef CONFIG_OV2640_QCIF_RESOLUTION
# undef CONFIG_OV2640_JPEG_QCIF_RESOLUTION
# undef CONFIG_OV2640_QVGA_RESOLUTION
# undef CONFIG_OV2640_JPEG_QVGA_RESOLUTION
# undef CONFIG_OV2640_CIF_RESOLUTION
# undef CONFIG_OV2640_JPEG_CIF_RESOLUTION
# undef CONFIG_OV2640_VGA_RESOLUTION
# undef CONFIG_OV2640_JPEG_VGA_RESOLUTION
# undef CONFIG_OV2640_SVGA_RESOLUTION
# undef CONFIG_OV2640_JPEG_SVGA_RESOLUTION
# undef CONFIG_OV2640_XVGA_RESOLUTION
# undef CONFIG_OV2640_JPEG_XVGA_RESOLUTION
# undef CONFIG_OV2640_UXGA_RESOLUTION
# undef CONFIG_OV2640_JPEG_UXGA_RESOLUTION
#elif defined(CONFIG_OV2640_UXGA_RESOLUTION) || \
defined(CONFIG_OV2640_JPEG_UXGA_RESOLUTION)
# define OV2460_IMAGE_WIDTH 1600
# define OV2460_IMAGE_HEIGHT 1200
# undef CONFIG_OV2640_QCIF_RESOLUTION
# undef CONFIG_OV2640_JPEG_QCIF_RESOLUTION
# undef CONFIG_OV2640_QVGA_RESOLUTION
# undef CONFIG_OV2640_JPEG_QVGA_RESOLUTION
# undef CONFIG_OV2640_CIF_RESOLUTION
# undef CONFIG_OV2640_JPEG_CIF_RESOLUTION
# undef CONFIG_OV2640_VGA_RESOLUTION
# undef CONFIG_OV2640_JPEG_VGA_RESOLUTION
# undef CONFIG_OV2640_SVGA_RESOLUTION
# undef CONFIG_OV2640_JPEG_SVGA_RESOLUTION
# undef CONFIG_OV2640_XVGA_RESOLUTION
# undef CONFIG_OV2640_JPEG_XVGA_RESOLUTION
# undef CONFIG_OV2640_SXGA_RESOLUTION
# undef CONFIG_OV2640_JPEG_SXVGA_RESOLUTION
#else
# error Unknown Resolution
#endif
/* Chip identification */
#define OVR2640_MANUFACTURER_IDL 0xa2
#define OVR2640_MANUFACTURER_IDH 0x7f
#define OVR2640_PRODUCT_IDL 0x42
#define OVR2640_PRODUCT_IDH 0x26
/****************************************************************************
* Private Types
****************************************************************************/
struct ovr2640_reg_s
{
uint8_t regaddr;
uint8_t regval;
};
#define ARRAY_NENTRIES(a) (sizeof(a)/sizeof(struct ovr2640_reg_s))
/****************************************************************************
* Private Function Prototypes
****************************************************************************/
/****************************************************************************
* Private Function Prototypes
****************************************************************************/
/* OV2640 register operations */
static int ov2640_putreg(FAR struct i2c_master_s *i2c, uint8_t regaddr,
uint8_t regval);
static uint8_t ov2640_getreg(FAR struct i2c_master_s *i2c, uint8_t regaddr);
static int ov2640_putreglist(FAR struct i2c_master_s *i2c,
FAR const struct ovr2640_reg_s *reglist, size_t nentries);
/* Initialization */
static int ovr2640_chipid(FAR struct i2c_master_s *i2c);
static int ov2640_reset(FAR struct i2c_master_s *i2c);
/****************************************************************************
* Private Data
****************************************************************************/
/* OV2640 reset */
static const struct ovr2640_reg_s g_ov2640_reset[] =
{
{0xff, 0x01}, {0x12, 0x80}
};
#define OV2640_RESET_NENTRIES ARRAY_NENTRIES(g_ov2640_reset)
#ifndef CONFIG_OV2640_JPEG
/* Initial register settings */
static const struct ovr2640_reg_s g_ov2640_initialregs[] =
{
{0xff, 0x00}, {0x2c, 0xff}, {0x2e, 0xdf}, {0xff, 0x01}, {0x3c, 0x32},
{0x11, 0x00}, {0x09, 0x02}, {0x04, 0x28}, {0x13, 0xe5}, {0x14, 0x48},
{0x2c, 0x0c}, {0x33, 0x78}, {0x3a, 0x33}, {0x3b, 0xfb}, {0x3e, 0x00},
{0x43, 0x11}, {0x16, 0x10}, {0x39, 0x02}, {0x35, 0x88}, {0x22, 0x0a},
{0x37, 0x40}, {0x23, 0x00}, {0x34, 0xa0}, {0x06, 0x02}, {0x06, 0x88},
{0x07, 0xc0}, {0x0d, 0xb7}, {0x0e, 0x01}, {0x4c, 0x00}, {0x4a, 0x81},
{0x21, 0x99}, {0x24, 0x40}, {0x25, 0x38}, {0x26, 0x82}, {0x5c, 0x00},
{0x63, 0x00}, {0x46, 0x22}, {0x0c, 0x3a}, {0x5d, 0x55}, {0x5e, 0x7d},
{0x5f, 0x7d}, {0x60, 0x55}, {0x61, 0x70}, {0x62, 0x80}, {0x7c, 0x05},
{0x20, 0x80}, {0x28, 0x30}, {0x6c, 0x00}, {0x6d, 0x80}, {0x6e, 0x00},
{0x70, 0x02}, {0x71, 0x94}, {0x73, 0xc1}, {0x3d, 0x34}, {0x12, 0x04},
{0x5a, 0x57}, {0x4f, 0xbb}, {0x50, 0x9c}, {0xff, 0x00}, {0xe5, 0x7f},
{0xf9, 0xc0}, {0x41, 0x24}, {0xe0, 0x14}, {0x76, 0xff}, {0x33, 0xa0},
{0x42, 0x20}, {0x43, 0x18}, {0x4c, 0x00}, {0x87, 0xd0}, {0x88, 0x3f},
{0xd7, 0x03}, {0xd9, 0x10}, {0xd3, 0x82}, {0xc8, 0x08}, {0xc9, 0x80},
{0x7c, 0x00}, {0x7d, 0x00}, {0x7c, 0x03}, {0x7d, 0x48}, {0x7d, 0x48},
{0x7c, 0x08}, {0x7d, 0x20}, {0x7d, 0x10}, {0x7d, 0x0e}, {0x90, 0x00},
{0x91, 0x0e}, {0x91, 0x1a}, {0x91, 0x31}, {0x91, 0x5a}, {0x91, 0x69},
{0x91, 0x75}, {0x91, 0x7e}, {0x91, 0x88}, {0x91, 0x8f}, {0x91, 0x96},
{0x91, 0xa3}, {0x91, 0xaf}, {0x91, 0xc4}, {0x91, 0xd7}, {0x91, 0xe8},
{0x91, 0x20}, {0x92, 0x00}, {0x93, 0x06}, {0x93, 0xe3}, {0x93, 0x03},
{0x93, 0x03}, {0x93, 0x00}, {0x93, 0x02}, {0x93, 0x00}, {0x93, 0x00},
{0x93, 0x00}, {0x93, 0x00}, {0x93, 0x00}, {0x93, 0x00}, {0x93, 0x00},
{0x96, 0x00}, {0x97, 0x08}, {0x97, 0x19}, {0x97, 0x02}, {0x97, 0x0c},
{0x97, 0x24}, {0x97, 0x30}, {0x97, 0x28}, {0x97, 0x26}, {0x97, 0x02},
{0x97, 0x98}, {0x97, 0x80}, {0x97, 0x00}, {0x97, 0x00}, {0xa4, 0x00},
{0xa8, 0x00}, {0xc5, 0x11}, {0xc6, 0x51}, {0xbf, 0x80}, {0xc7, 0x10},
{0xb6, 0x66}, {0xb8, 0xa5}, {0xb7, 0x64}, {0xb9, 0x7c}, {0xb3, 0xaf},
{0xb4, 0x97}, {0xb5, 0xff}, {0xb0, 0xc5}, {0xb1, 0x94}, {0xb2, 0x0f},
{0xc4, 0x5c}, {0xa6, 0x00}, {0xa7, 0x20}, {0xa7, 0xd8}, {0xa7, 0x1b},
{0xa7, 0x31}, {0xa7, 0x00}, {0xa7, 0x18}, {0xa7, 0x20}, {0xa7, 0xd8},
{0xa7, 0x19}, {0xa7, 0x31}, {0xa7, 0x00}, {0xa7, 0x18}, {0xa7, 0x20},
{0xa7, 0xd8}, {0xa7, 0x19}, {0xa7, 0x31}, {0xa7, 0x00}, {0xa7, 0x18},
{0x7f, 0x00}, {0xe5, 0x1f}, {0xe1, 0x77}, {0xdd, 0x7f}, {0xc2, 0x0e}
};
#define OV2640_INITIALREGS_NENTRIES ARRAY_NENTRIES(g_ov2640_initialregs)
/* Resolution register settings */
static const struct ovr2640_reg_s g_ov2640_resolution_common[] =
{
{0xff, 0x00}, {0xe0, 0x04}, {0xc0, 0xc8}, {0xc1, 0x96}, {0x86, 0x3d},
{0x51, 0x90}, {0x52, 0x2c}, {0x53, 0x00}, {0x54, 0x00}, {0x55, 0x88},
{0x57, 0x00}
};
#define OV2640_RESOLUTION_COMMON_NENTRIES ARRAY_NENTRIES(g_ov2640_resolution_common)
#if defined(CONFIG_OV2640_QCIF_RESOLUTION)
static const struct ovr2640_reg_s g_ov2640_qcif_resolution[] =
{
{0x50, 0x9b}, {0x5a, 0x2c}, {0x5b, 0x24}, {0x5c, 0x00}, {0xd3, 0x04},
{0xe0, 0x00}
};
#define OV2640_QCIF_RESOLUTION_NENTRIES ARRAY_NENTRIES(g_ov2640_qcif_resolution)
#elif defined(CONFIG_OV2640_QVGA_RESOLUTION)
static const struct ovr2640_reg_s g_ov2640_qvga_resolution[] =
{
{0x50, 0x92}, {0x5a, 0x50}, {0x5b, 0x3c}, {0x5c, 0x00}, {0xd3, 0x04},
{0xe0, 0x00},
};
#define OV2640_QVGA_RESOLUTION_NENTRIES ARRAY_NENTRIES(g_ov2640_qvga_resolution)
#elif defined(CONFIG_OV2640_CIF_RESOLUTION)
static const struct ovr2640_reg_s g_ov2640_cif_resolution[] =
{
{0x50, 0x92}, {0x5a, 0x58}, {0x5b, 0x48}, {0x5c, 0x00}, {0xd3, 0x08},
{0xe0, 0x00}
};
#define OV2640_CIF_RESOLUTION_NENTRIES ARRAY_NENTRIES(g_ov2640_cif_resolution)
#elif defined(CONFIG_OV2640_VGA_RESOLUTION)
static const struct ovr2640_reg_s g_ov2640_vga_resolution[] =
{
{0x50, 0x80}, {0x5a, 0xa0}, {0x5b, 0x78}, {0x5c, 0x00}, {0xd3, 0x02},
{0xe0, 0x00}
};
#define OV2640_VGA_RESOLUTION_NENTRIES ARRAY_NENTRIES(g_ov2640_vga_resolution)
#elif defined(CONFIG_OV2640_SVGA_RESOLUTION)
static const struct ovr2640_reg_s g_ov2640_svga_resolution[] =
{
{0x50, 0x89}, {0x5a, 0xc8}, {0x5b, 0x96}, {0x5c, 0x00}, {0xd3, 0x02},
{0xe0, 0x00}
};
#define OV2640_SVGA_RESOLUTION_NENTRIES ARRAY_NENTRIES(g_ov2640_svga_resolution)
#elif defined(CONFIG_OV2640_XVGA_RESOLUTION)
static const struct ovr2640_reg_s g_ov2640_xga_resolution[] =
{
{0x50, 0x80}, {0x5a, 0x00}, {0x5b, 0xc0}, {0x5c, 0x01}, {0xd3, 0x02},
{0xe0, 0x00}, {0x50, 0x00}
};
#define OV2640_XGA_RESOLUTION_NENTRIES ARRAY_NENTRIES(g_ov2640_xga_resolution)
#elif defined(CONFIG_OV2640_SXGA_RESOLUTION)
static const struct ovr2640_reg_s g_ov2640_sxga_resolution[] =
{
{0x50, 0x80}, {0x5a, 0x40}, {0x5b, 0x00}, {0x5c, 0x05}, {0xd3, 0x02},
{0xe0, 0x00}, {0x50, 0x00}, {0xd3, 0x82}
};
#define OV2640_SXGA_RESOLUTION_NENTRIES ARRAY_NENTRIES(g_ov2640_sxga_resolution)
#elif defined(CONFIG_OV2640_UXGA_RESOLUTION)
static const struct ovr2640_reg_s g_ov2640_uxga_resolution[] =
{
{0x50, 0x80}, {0x5a, 0x90}, {0x5b, 0x2c}, {0x5c, 0x05}, {0xd3, 0x00},
{0xe0, 0x00}, {0x50, 0x00}, {0xd3, 0x80}
};
#define OV2640_UXGA_RESOLUTION_NENTRIES ARRAY_NENTRIES(g_ov2640_uxga_resolution)
#else
# error Unknown image resolution
#endif
/* Color format register settings */
static const struct ovr2640_reg_s g_ov2640_colorfmt_common[] =
{
{0xff, 0x00}, {0x05, 0x00}
};
#define OV2640_COLORFMT_COMMON_NENTRIES ARRAY_NENTRIES(g_ov2640_colorfmt_common)
#if defined(CONFIG_OV2640_YUV422_COLORFMT)
static const struct ovr2640_reg_s g_ov2640_yuv422_colorfmt[] =
{
{0xda, 0x01}, {0xd7, 0x01}, {0x33, 0xa0}, {0xe1, 0x67}, {0xe0, 0x00},
{0x05, 0x00}
};
#define OV2640_YUV422_COLORFMT_NENTRIES ARRAY_NENTRIES(g_ov2640_yuv422_colorfmt)
#elif defined(CONFIG_OV2640_RGB565_COLORFMT)
static const struct ovr2640_reg_s g_ov2640_rgb565_colorfmt[] =
{
{0xda, 0x09}, {0xd7, 0x03}, {0xe0, 0x00}, {0x05, 0x00}
};
#define OV2640_RGB565_COLORFMT_NENTRIES ARRAY_NENTRIES(g_ov2640_rgb565_colorfmt)
#else
# error Unknown color format
#endif
#endif /* !CONFIG_OV2640_JPEG */
#ifdef CONFIG_OV2640_JPEG
static const struct ovr2640_reg_s g_ov2640_jpeg_init[] =
{
{0xff, 0x00}, {0x2c, 0xff}, {0x2e, 0xdf}, {0xff, 0x01}, {0x3c, 0x32},
{0x11, 0x04}, {0x09, 0x02}, {0x04, 0x28}, {0x13, 0xe5}, {0x14, 0x48},
{0x2c, 0x0c}, {0x33, 0x78}, {0x3a, 0x33}, {0x3b, 0xfb}, {0x3e, 0x00},
{0x43, 0x11}, {0x16, 0x10}, {0x39, 0x92}, {0x35, 0xda}, {0x22, 0x1a},
{0x37, 0xc3}, {0x23, 0x00}, {0x34, 0xc0}, {0x36, 0x1a}, {0x06, 0x88},
{0x07, 0xc0}, {0x0d, 0x87}, {0x0e, 0x41}, {0x4c, 0x00}, {0x48, 0x00},
{0x5b, 0x00}, {0x42, 0x03}, {0x4a, 0x81}, {0x21, 0x99}, {0x24, 0x40},
{0x25, 0x38}, {0x26, 0x82}, {0x5c, 0x00}, {0x63, 0x00}, {0x61, 0x70},
{0x62, 0x80}, {0x7c, 0x05}, {0x20, 0x80}, {0x28, 0x30}, {0x6c, 0x00},
{0x6d, 0x80}, {0x6e, 0x00}, {0x70, 0x02}, {0x71, 0x94}, {0x73, 0xc1},
{0x12, 0x40}, {0x17, 0x11}, {0x18, 0x43}, {0x19, 0x00}, {0x1a, 0x4b},
{0x32, 0x09}, {0x37, 0xc0}, {0x4f, 0x60}, {0x50, 0xa8}, {0x6d, 0x00},
{0x3d, 0x38}, {0x46, 0x3f}, {0x4f, 0x60}, {0x0c, 0x3c}, {0xff, 0x00},
{0xe5, 0x7f}, {0xf9, 0xc0}, {0x41, 0x24}, {0xe0, 0x14}, {0x76, 0xff},
{0x33, 0xa0}, {0x42, 0x20}, {0x43, 0x18}, {0x4c, 0x00}, {0x87, 0xd5},
{0x88, 0x3f}, {0xd7, 0x03}, {0xd9, 0x10}, {0xd3, 0x82}, {0xc8, 0x08},
{0xc9, 0x80}, {0x7c, 0x00}, {0x7d, 0x00}, {0x7c, 0x03}, {0x7d, 0x48},
{0x7d, 0x48}, {0x7c, 0x08}, {0x7d, 0x20}, {0x7d, 0x10}, {0x7d, 0x0e},
{0x90, 0x00}, {0x91, 0x0e}, {0x91, 0x1a}, {0x91, 0x31}, {0x91, 0x5a},
{0x91, 0x69}, {0x91, 0x75}, {0x91, 0x7e}, {0x91, 0x88}, {0x91, 0x8f},
{0x91, 0x96}, {0x91, 0xa3}, {0x91, 0xaf}, {0x91, 0xc4}, {0x91, 0xd7},
{0x91, 0xe8}, {0x91, 0x20}, {0x92, 0x00}, {0x93, 0x06}, {0x93, 0xe3},
{0x93, 0x05}, {0x93, 0x05}, {0x93, 0x00}, {0x93, 0x04}, {0x93, 0x00},
{0x93, 0x00}, {0x93, 0x00}, {0x93, 0x00}, {0x93, 0x00}, {0x93, 0x00},
{0x93, 0x00}, {0x96, 0x00}, {0x97, 0x08}, {0x97, 0x19}, {0x97, 0x02},
{0x97, 0x0c}, {0x97, 0x24}, {0x97, 0x30}, {0x97, 0x28}, {0x97, 0x26},
{0x97, 0x02}, {0x97, 0x98}, {0x97, 0x80}, {0x97, 0x00}, {0x97, 0x00},
{0xc3, 0xed}, {0xa4, 0x00}, {0xa8, 0x00}, {0xc5, 0x11}, {0xc6, 0x51},
{0xbf, 0x80}, {0xc7, 0x10}, {0xb6, 0x66}, {0xb8, 0xa5}, {0xb7, 0x64},
{0xb9, 0x7c}, {0xb3, 0xaf}, {0xb4, 0x97}, {0xb5, 0xff}, {0xb0, 0xc5},
{0xb1, 0x94}, {0xb2, 0x0f}, {0xc4, 0x5c}, {0xc0, 0x64}, {0xc1, 0x4b},
{0x8c, 0x00}, {0x86, 0x3d}, {0x50, 0x00}, {0x51, 0xc8}, {0x52, 0x96},
{0x53, 0x00}, {0x54, 0x00}, {0x55, 0x00}, {0x5a, 0xc8}, {0x5b, 0x96},
{0x5c, 0x00}, {0xd3, 0x00}, {0xc3, 0xed}, {0x7f, 0x00}, {0xda, 0x00},
{0xe5, 0x1f}, {0xe1, 0x67}, {0xe0, 0x00}, {0xdd, 0x7f}, {0x05, 0x00},
{0x12, 0x40}, {0xd3, 0x04}, {0xc0, 0x16}, {0xc1, 0x12}, {0x8c, 0x00},
{0x86, 0x3d}, {0x50, 0x00}, {0x51, 0x2c}, {0x52, 0x24}, {0x53, 0x00},
{0x54, 0x00}, {0x55, 0x00}, {0x5a, 0x2c}, {0x5b, 0x24}, {0x5c, 0x00},
};
#define OV2640_JPEG_INIT_NENTRIES ARRAY_NENTRIES(g_ov2640_jpeg_init)
#endif
#ifdef CONFIG_OV2640_JPEG
static const struct ovr2640_reg_s g_ov2640_yuv422[] =
{
{0xff, 0x00}, {0x05, 0x00}, {0xda, 0x10}, {0xd7, 0x03}, {0xdf, 0x00},
{0x33, 0x80}, {0x3c, 0x40}, {0xe1, 0x77}, {0x00, 0x00}
};
#define OV2640_YUV422_NENTRIES ARRAY_NENTRIES(g_ov2640_yuv422)
#endif
#ifdef CONFIG_OV2640_JPEG
static const struct ovr2640_reg_s g_ov2640_jpeg[] =
{
{0xe0, 0x14}, {0xe1, 0x77}, {0xe5, 0x1f}, {0xd7, 0x03}, {0xda, 0x10},
{0xe0, 0x00}, {0xff, 0x01}, {0x04, 0x08}
};
#define OV2640_JPEG_NENTRIES ARRAY_NENTRIES(g_ov2640_jpeg)
#endif
/* JPEG QCIF 176x144 */
#ifdef CONFIG_OV2640_JPEG_QCIF_RESOLUTION
static const struct ovr2640_reg_s g_ov2640_jpeg_qcif_resolution[] =
{
{0xff, 0x01}, {0x12, 0x40}, {0x17, 0x11}, {0x18, 0x43}, {0x19, 0x00},
{0x1a, 0x4b}, {0x32, 0x09}, {0x4f, 0xca}, {0x50, 0xa8}, {0x5a, 0x23},
{0x6d, 0x00}, {0x39, 0x12}, {0x35, 0xda}, {0x22, 0x1a}, {0x37, 0xc3},
{0x23, 0x00}, {0x34, 0xc0}, {0x36, 0x1a}, {0x06, 0x88}, {0x07, 0xc0},
{0x0d, 0x87}, {0x0e, 0x41}, {0x4c, 0x00}, {0xff, 0x00}, {0xe0, 0x04},
{0xc0, 0x64}, {0xc1, 0x4b}, {0x86, 0x35}, {0x50, 0x92}, {0x51, 0xc8},
{0x52, 0x96}, {0x53, 0x00}, {0x54, 0x00}, {0x55, 0x00}, {0x57, 0x00},
{0x5a, 0x2c}, {0x5b, 0x24}, {0x5c, 0x00}, {0xe0, 0x00}
};
#define OV2640_JPEG_QCIF_RESOUTION_NENTRIES ARRAY_NENTRIES(g_ov2640_jpeg_qcif_resolution)
#endif
/* JPEG QVGA 320x240 */
#ifdef CONFIG_OV2640_JPEG_QVGA_RESOLUTION
static const struct ovr2640_reg_s g_ov2640_jpeg_qvga_resolution[] =
{
{0xff, 0x01}, {0x12, 0x40}, {0x17, 0x11}, {0x18, 0x43}, {0x19, 0x00},
{0x1a, 0x4b}, {0x32, 0x09}, {0x4f, 0xca}, {0x50, 0xa8}, {0x5a, 0x23},
{0x6d, 0x00}, {0x39, 0x12}, {0x35, 0xda}, {0x22, 0x1a}, {0x37, 0xc3},
{0x23, 0x00}, {0x34, 0xc0}, {0x36, 0x1a}, {0x06, 0x88}, {0x07, 0xc0},
{0x0d, 0x87}, {0x0e, 0x41}, {0x4c, 0x00}, {0xff, 0x00}, {0xe0, 0x04},
{0xc0, 0x64}, {0xc1, 0x4b}, {0x86, 0x35}, {0x50, 0x89}, {0x51, 0xc8},
{0x52, 0x96}, {0x53, 0x00}, {0x54, 0x00}, {0x55, 0x00}, {0x57, 0x00},
{0x5a, 0x50}, {0x5b, 0x3c}, {0x5c, 0x00}, {0xe0, 0x00}
};
#define OV2640_JPEG_QVGA_RESOUTION_NENTRIES ARRAY_NENTRIES(g_ov2640_jpeg_qvga_resolution)
#endif
/* JPEG CIF 352x288 */
#ifdef CONFIG_OV2640_JPEG_CIF_RESOLUTION
static const struct ovr2640_reg_s g_ov2640_jpeg_cif_resolution[] =
{
{0xff, 0x01}, {0x12, 0x40}, {0x17, 0x11}, {0x18, 0x43}, {0x19, 0x00},
{0x1a, 0x4b}, {0x32, 0x09}, {0x4f, 0xca}, {0x50, 0xa8}, {0x5a, 0x23},
{0x6d, 0x00}, {0x39, 0x12}, {0x35, 0xda}, {0x22, 0x1a}, {0x37, 0xc3},
{0x23, 0x00}, {0x34, 0xc0}, {0x36, 0x1a}, {0x06, 0x88}, {0x07, 0xc0},
{0x0d, 0x87}, {0x0e, 0x41}, {0x4c, 0x00}, {0xff, 0x00}, {0xe0, 0x04},
{0xc0, 0x64}, {0xc1, 0x4b}, {0x86, 0x35}, {0x50, 0x89}, {0x51, 0xc8},
{0x52, 0x96}, {0x53, 0x00}, {0x54, 0x00}, {0x55, 0x00}, {0x57, 0x00},
{0x5a, 0x58}, {0x5b, 0x48}, {0x5c, 0x00}, {0xe0, 0x00}
};
#define OV2640_JPEG_CIF_RESOUTION_NENTRIES ARRAY_NENTRIES(g_ov2640_jpeg_cif_resolution)
#endif
/* JPEG VGA 640x480 */
#ifdef CONFIG_OV2640_JPEG_VGA_RESOLUTION
static const struct ovr2640_reg_s g_ov2640_jpeg_vga_resolution[] =
{
{0xff, 0x01}, {0x11, 0x01}, {0x12, 0x00}, {0x17, 0x11}, {0x18, 0x75},
{0x32, 0x36}, {0x19, 0x01}, {0x1a, 0x97}, {0x03, 0x0f}, {0x37, 0x40},
{0x4f, 0xbb}, {0x50, 0x9c}, {0x5a, 0x57}, {0x6d, 0x80}, {0x3d, 0x34},
{0x39, 0x02}, {0x35, 0x88}, {0x22, 0x0a}, {0x37, 0x40}, {0x34, 0xa0},
{0x06, 0x02}, {0x0d, 0xb7}, {0x0e, 0x01}, {0xff, 0x00}, {0xe0, 0x04},
{0xc0, 0xc8}, {0xc1, 0x96}, {0x86, 0x3d}, {0x50, 0x89}, {0x51, 0x90},
{0x52, 0x2c}, {0x53, 0x00}, {0x54, 0x00}, {0x55, 0x88}, {0x57, 0x00},
{0x5a, 0xa0}, {0x5b, 0x78}, {0x5c, 0x00}, {0xd3, 0x04}, {0xe0, 0x00}
};
#define OV2640_JPEG_VGA_RESOUTION_NENTRIES ARRAY_NENTRIES(g_ov2640_jpeg_vga_resolution)
#endif
/* JPEG SVGA 800x600 */
#ifdef CONFIG_OV2640_JPEG_SVGA_RESOLUTION
static const struct ovr2640_reg_s g_ov2640_jpeg_svga_resolution[] =
{
{0xff, 0x01}, {0x11, 0x01}, {0x12, 0x00}, {0x17, 0x11}, {0x18, 0x75},
{0x32, 0x36}, {0x19, 0x01}, {0x1a, 0x97}, {0x03, 0x0f}, {0x37, 0x40},
{0x4f, 0xbb}, {0x50, 0x9c}, {0x5a, 0x57}, {0x6d, 0x80}, {0x3d, 0x34},
{0x39, 0x02}, {0x35, 0x88}, {0x22, 0x0a}, {0x37, 0x40}, {0x34, 0xa0},
{0x06, 0x02}, {0x0d, 0xb7}, {0x0e, 0x01}, {0xff, 0x00}, {0xe0, 0x04},
{0xc0, 0xc8}, {0xc1, 0x96}, {0x86, 0x35}, {0x50, 0x89}, {0x51, 0x90},
{0x52, 0x2c}, {0x53, 0x00}, {0x54, 0x00}, {0x55, 0x88}, {0x57, 0x00},
{0x5a, 0xc8}, {0x5b, 0x96}, {0x5c, 0x00}, {0xd3, 0x02}, {0xe0, 0x00}
};
#define OV2640_JPEG_SVGA_RESOUTION_NENTRIES ARRAY_NENTRIES(g_ov2640_jpeg_svga_resolution)
#endif
/* JPEG 1024x768 */
#ifdef CONFIG_OV2640_JPEG_XVGA_RESOLUTION
static const struct ovr2640_reg_s g_ov2640_jpeg_xvga_resolution[] =
{
{0xff, 0x01}, {0x11, 0x01}, {0x12, 0x00}, {0x17, 0x11}, {0x18, 0x75},
{0x32, 0x36}, {0x19, 0x01}, {0x1a, 0x97}, {0x03, 0x0f}, {0x37, 0x40},
{0x4f, 0xbb}, {0x50, 0x9c}, {0x5a, 0x57}, {0x6d, 0x80}, {0x3d, 0x34},
{0x39, 0x02}, {0x35, 0x88}, {0x22, 0x0a}, {0x37, 0x40}, {0x34, 0xa0},
{0x06, 0x02}, {0x0d, 0xb7}, {0x0e, 0x01}, {0xff, 0x00}, {0xc0, 0xc8},
{0xc1, 0x96}, {0x8c, 0x00}, {0x86, 0x3d}, {0x50, 0x00}, {0x51, 0x90},
{0x52, 0x2c}, {0x53, 0x00}, {0x54, 0x00}, {0x55, 0x88}, {0x5a, 0x00},
{0x5b, 0xc0}, {0x5c, 0x01}, {0xd3, 0x02}
};
#define OV2640_JPEG_XVGA_RESOUTION_NENTRIES ARRAY_NENTRIES(g_ov2640_jpeg_xvga_resolution)
#endif
/* JPEG 1280x1024 */
#ifdef CONFIG_OV2640_JPEG_SXVGA_RESOLUTION
static const struct ovr2640_reg_s g_ov2640_jpeg_sxvga_resolution[] =
{
{0xff, 0x01}, {0x11, 0x01}, {0x12, 0x00}, {0x17, 0x11}, {0x18, 0x75},
{0x32, 0x36}, {0x19, 0x01}, {0x1a, 0x97}, {0x03, 0x0f}, {0x37, 0x40},
{0x4f, 0xbb}, {0x50, 0x9c}, {0x5a, 0x57}, {0x6d, 0x80}, {0x3d, 0x34},
{0x39, 0x02}, {0x35, 0x88}, {0x22, 0x0a}, {0x37, 0x40}, {0x34, 0xa0},
{0x06, 0x02}, {0x0d, 0xb7}, {0x0e, 0x01}, {0xff, 0x00}, {0xe0, 0x04},
{0xc0, 0xc8}, {0xc1, 0x96}, {0x86, 0x3d}, {0x50, 0x00}, {0x51, 0x90},
{0x52, 0x2c}, {0x53, 0x00}, {0x54, 0x00}, {0x55, 0x88}, {0x57, 0x00},
{0x5a, 0x40}, {0x5b, 0xf0}, {0x5c, 0x01}, {0xd3, 0x02}, {0xe0, 0x00}
};
#define OV2640_JPEG_SXVGA_RESOUTION_NENTRIES ARRAY_NENTRIES(g_ov2640_jpeg_sxvga_resolution)
#endif
/* JPEG 1600x1200 */
#ifdef CONFIG_OV2640_JPEG_UXGA_RESOLUTION
static const struct ovr2640_reg_s g_ov2640_jpeg_uxga_resolution[] =
{
{0xff, 0x01}, {0x11, 0x01}, {0x12, 0x00}, {0x17, 0x11}, {0x18, 0x75},
{0x32, 0x36}, {0x19, 0x01}, {0x1a, 0x97}, {0x03, 0x0f}, {0x37, 0x40},
{0x4f, 0xbb}, {0x50, 0x9c}, {0x5a, 0x57}, {0x6d, 0x80}, {0x3d, 0x34},
{0x39, 0x02}, {0x35, 0x88}, {0x22, 0x0a}, {0x37, 0x40}, {0x34, 0xa0},
{0x06, 0x02}, {0x0d, 0xb7}, {0x0e, 0x01}, {0xff, 0x00}, {0xe0, 0x04},
{0xc0, 0xc8}, {0xc1, 0x96}, {0x86, 0x3d}, {0x50, 0x00}, {0x51, 0x90},
{0x52, 0x2c}, {0x53, 0x00}, {0x54, 0x00}, {0x55, 0x88}, {0x57, 0x00},
{0x5a, 0x90}, {0x5b, 0x2c}, {0x5c, 0x05}, {0xd3, 0x02}, {0xe0, 0x00}
};
#define OV2640_JPEG_UXGA_RESOUTION_NENTRIES ARRAY_NENTRIES(g_ov2640_jpeg_uxga_resolution)
#endif
/****************************************************************************
* Private Functions
****************************************************************************/
/****************************************************************************
* Name: ov2640_putreg
*
* Description:
* Set one OV2640 register
*
* Input Parameters:
* i2c - Reference to the I2C driver structure
* regaddr - The address of the OV2640 register to set
* regval - The new value of the register
*
* Returned Value:
* Zero (OK) is returned on success; a negated errno value is returned
* on failure.
*
****************************************************************************/
static int ov2640_putreg(FAR struct i2c_master_s *i2c, uint8_t regaddr,
uint8_t regval)
{
struct i2c_config_s config;
uint8_t buffer[2];
int ret;
#ifdef CONFIG_OV2640_REGDEBUG
_err("%02x <- %02x\n", regaddr, regval);
#endif
/* Set up for the transfer */
buffer[0] = regaddr; /* Register address */
buffer[1] = regval; /* New register value */
/* Set up the I2C configuration */
config.frequency = CONFIG_OV2640_FREQUENCY;
config.address = CONFIG_OV2640_I2CADDR;
config.addrlen = 7;
/* And do it */
ret = i2c_write(i2c, &config, buffer, 2);
if (ret < 0)
{
gerr("ERROR: i2c_write failed: %d\n", ret);
return ret;
}
return OK;
}
/****************************************************************************
* Name: ov2640_getreg
*
* Description:
* Set one OV2640 register
*
* Input Parameters:
* i2c - Reference to the I2C driver structure
* regaddr - The address of the OV2640 register to set
* regval - The new value of the register
*
* Returned Value:
* Zero (OK) is returned on success; a negated errno value is returned
* on failure.
*
****************************************************************************/
static uint8_t ov2640_getreg(FAR struct i2c_master_s *i2c, uint8_t regaddr)
{
struct i2c_config_s config;
uint8_t regval;
int ret;
/* Set up the I2C configuration */
config.frequency = CONFIG_OV2640_FREQUENCY;
config.address = CONFIG_OV2640_I2CADDR;
config.addrlen = 7;
/* Write the register address */
ret = i2c_write(i2c, &config, &regaddr, 1);
if (ret < 0)
{
gerr("ERROR: i2c_write failed: %d\n", ret);
return 0;
}
/* Restart and read 8-bits from the register */
ret = i2c_read(i2c, &config, &regval, 1);
if (ret < 0)
{
gerr("ERROR: i2c_read failed: %d\n", ret);
return 0;
}
#ifdef CONFIG_OV2640_REGDEBUG
else
{
_err("%02x -> %02x\n", regaddr, regval);
}
#endif
return regval;
}
/****************************************************************************
* Name: ov2640_putreglist
*
* Description:
* Set a list of OV2640 register values.
*
* Input Parameters:
* i2c - Reference to the I2C driver structure
* reglist - The address of list of OV2640 register settings
* nentries - The number of entries in the list
*
* Returned Value:
* Zero (OK) is returned on success; a negated errno value is returned
* on failure.
*
****************************************************************************/
static int ov2640_putreglist(FAR struct i2c_master_s *i2c,
FAR const struct ovr2640_reg_s *reglist,
size_t nentries)
{
FAR const struct ovr2640_reg_s *entry;
int ret;
for (entry = reglist; nentries > 0; nentries--, entry++)
{
ret = ov2640_putreg(i2c, entry->regaddr, entry->regval);
if (ret < 0)
{
gerr("ERROR: ov2640_putreg failed: %d\n", ret);
return ret;
}
}
return OK;
}
/****************************************************************************
* Name: ovr2640_chipid
*
* Description:
* Read and verify the CHIP ID
*
* Input Parameters:
* i2c - Reference to the I2C driver structure
*
* Returned Value:
* Zero (OK) is returned on success; a negated errno value is returned
* on failure.
*
****************************************************************************/
static int ovr2640_chipid(FAR struct i2c_master_s *i2c)
{
uint8_t pidl;
uint8_t pidh;
#ifdef CONFIG_DEBUG_GRAPHICS
uint8_t midh;
uint8_t midl;
#endif
int ret;
/* Check and show product ID and manufacturer ID */
ret = ov2640_putreg(i2c, 0xff, 0x01); /* Select the sensor address bank */
if (ret < 0)
{
gerr("ERROR: ov2640_putreg failed: %d\n", ret);
return ret;
}
pidl = ov2640_getreg(i2c, 0x0a); /* Product ID (MS) */
pidh = ov2640_getreg(i2c, 0x0b); /* Product ID (LS) */
#ifdef CONFIG_DEBUG_GRAPHICS
midh = ov2640_getreg(i2c, 0x1c); /* Manufacturer ID (high) = 0x7f */
midl = ov2640_getreg(i2c, 0x1d); /* Manufacturer ID (low) = 0xa2 */
#endif
if (pidl != OVR2640_PRODUCT_IDL || pidh != OVR2640_PRODUCT_IDH)
{
#ifdef CONFIG_DEBUG_GRAPHICS
gerr("ERROR: Unsupported PID=%02x$02x MID=%02x%02x\n",
pidh, pidl, midh, midl);
#endif
return -ENOSYS;
}
#ifdef CONFIG_DEBUG_GRAPHICS
ginfo("PID=%02x$02x MID=%02x%02x\n", pidh, pidl, midh, midl);
#endif
return OK;
}
/****************************************************************************
* Name: ov2640_reset
*
* Description:
* Reset the OV2640.
*
* Input Parameters:
* i2c - Reference to the I2C driver structure
* reglist - The address of list of OV2640 register settings
* nentries - The number of entries in the list
*
* Returned Value:
* Zero (OK) is returned on success; a negated errno value is returned
* on failure.
*
****************************************************************************/
static int ov2640_reset(FAR struct i2c_master_s *i2c)
{
int ret;
ret = ov2640_putreglist(i2c, g_ov2640_reset, OV2640_RESET_NENTRIES);
if (ret < 0)
{
gerr("ERROR: ov2640_putreglist failed: %d\n", ret);
return ret;
}
up_mdelay(5);
return OK;
}
/****************************************************************************
* Public Functions
****************************************************************************/
/****************************************************************************
* Name: ov2640_initialize
*
* Description:
* Initialize the OV2640 camera.
*
* Input Parameters:
* i2c - Reference to the I2C driver structure
*
* Returned Value:
* Zero (OK) is returned on success. Otherwise, a negated errno value is
* returned to indicate the nature of the failure.
*
****************************************************************************/
int ov2640_initialize(FAR struct i2c_master_s *i2c)
{
int ret;
/* Reset the OVR2640 */
ret = ov2640_reset(i2c);
if (ret < 0)
{
gerr("ERROR: ov2640_reset failed: %d\n", ret);
goto errout;
}
/* Check the CHIP ID */
ret = ovr2640_chipid(i2c);
if (ret < 0)
{
gerr("ERROR: ovr2640_chipid failed: %d\n", ret);
goto errout;
}
/* Initialize the OV2640 hardware */
#ifdef CONFIG_OV2640_JPEG
/* Initialize for JPEG output */
ret = ov2640_putreglist(i2c, g_ov2640_jpeg_init,
OV2640_JPEG_INIT_NENTRIES);
if (ret < 0)
{
gerr("ERROR: ov2640_putreglist failed: %d\n", ret);
goto errout;
}
ret = ov2640_putreglist(i2c, g_ov2640_yuv422, OV2640_YUV422_NENTRIES);
if (ret < 0)
{
gerr("ERROR: ov2640_putreglist failed: %d\n", ret);
goto errout;
}
ret = ov2640_putreglist(i2c, g_ov2640_jpeg, OV2640_JPEG_NENTRIES);
if (ret < 0)
{
gerr("ERROR: ov2640_putreglist failed: %d\n", ret);
goto errout;
}
ret = ov2640_putreg(i2c, 0xff, 0x01);
if (ret < 0)
{
gerr("ERROR: ov2640_putreg failed: %d\n", ret);
goto errout;
}
ret = ov2640_putreg(i2c, 0x15, 0x00);
if (ret < 0)
{
gerr("ERROR: ov2640_putreg failed: %d\n", ret);
goto errout;
}
#if defined(CONFIG_OV2640_JPEG_QCIF_RESOLUTION)
ret = ov2640_putreglist(i2c, g_ov2640_jpeg_qcif_resolution,
OV2640_JPEG_QCIF_RESOUTION_NENTRIES);
#elif defined(CONFIG_OV2640_JPEG_QVGA_RESOLUTION)
ret = ov2640_putreglist(i2c, g_ov2640_jpeg_qvga_resolution,
OV2640_JPEG_QVGA_RESOUTION_NENTRIES);
#elif defined(CONFIG_OV2640_JPEG_CIF_RESOLUTION)
ret = ov2640_putreglist(i2c, g_ov2640_jpeg_cif_resolution,
OV2640_JPEG_CIF_RESOUTION_NENTRIES);
#elif defined(CONFIG_OV2640_JPEG_VGA_RESOLUTION)
ret = ov2640_putreglist(i2c, g_ov2640_jpeg_vga_resolution,
OV2640_JPEG_VGA_RESOUTION_NENTRIES);
#elif defined(CONFIG_OV2640_JPEG_SVGA_RESOLUTION)
ret = ov2640_putreglist(i2c, g_ov2640_jpeg_svga_resolution,
OV2640_JPEG_SVGA_RESOUTION_NENTRIES);
#elif defined(CONFIG_OV2640_JPEG_XVGA_RESOLUTION)
ret = ov2640_putreglist(i2c, g_ov2640_jpeg_xvga_resolution,
OV2640_JPEG_XVGA_RESOUTION_NENTRIES);
#elif defined(CONFIG_OV2640_JPEG_SXVGA_RESOLUTION)
ret = ov2640_putreglist(i2c, g_ov2640_jpeg_sxvga_resolution,
OV2640_JPEG_SXVGA_RESOUTION_NENTRIES);
#elif defined(CONFIG_OV2640_JPEG_UXGA_RESOLUTION)
ret = ov2640_putreglist(i2c, g_ov2640_jpeg_uxga_resolution,
OV2640_JPEG_UXGA_RESOUTION_NENTRIES);
#else
# error Unspecified JPEG resolution
#endif
if (ret < 0)
{
gerr("ERROR: ov2640_putreglist failed: %d\n", ret);
goto errout;
}
#else /* CONFIG_OV2640_JPEG */
/* Setup initial register values */
ret = ov2640_putreglist(i2c, g_ov2640_initialregs,
OV2640_INITIALREGS_NENTRIES);
if (ret < 0)
{
gerr("ERROR: ov2640_putreglist failed: %d\n", ret);
goto errout;
}
/* Setup image resolution */
ret = ov2640_putreglist(i2c, g_ov2640_resolution_common,
OV2640_RESOLUTION_COMMON_NENTRIES);
if (ret < 0)
{
gerr("ERROR: ov2640_putreglist failed: %d\n", ret);
goto errout;
}
#if defined(CONFIG_OV2640_QCIF_RESOLUTION)
ret = ov2640_putreglist(i2c, g_ov2640_qcif_resolution,
OV2640_QCIF_RESOLUTION_NENTRIES);
#elif defined(CONFIG_OV2640_QVGA_RESOLUTION)
ret = ov2640_putreglist(i2c, g_ov2640_qvga_resolution,
OV2640_QVGA_RESOLUTION_NENTRIES);
#elif defined(CONFIG_OV2640_CIF_RESOLUTION)
ret = ov2640_putreglist(i2c, g_ov2640_cif_resolution,
OV2640_CIF_RESOLUTION_NENTRIES);
#elif defined(CONFIG_OV2640_VGA_RESOLUTION)
ret = ov2640_putreglist(i2c, g_ov2640_vga_resolution,
OV2640_VGA_RESOLUTION_NENTRIES);
#elif defined(CONFIG_OV2640_SVGA_RESOLUTION)
ret = ov2640_putreglist(i2c, g_ov2640_svga_resolution,
OV2640_SVGA_RESOLUTION_NENTRIES);
#elif defined(CONFIG_OV2640_XGA_RESOLUTION)
ret = ov2640_putreglist(i2c, g_ov2640_xga_resolution,
OV2640_XGA_RESOLUTION_NENTRIES);
#elif defined(CONFIG_OV2640_SXGA_RESOLUTION)
ret = ov2640_putreglist(i2c, g_ov2640_sxga_resolution,
OV2640_SXGA_RESOLUTION_NENTRIES);
#elif defined(CONFIG_OV2640_UXGA_RESOLUTION)
ret = ov2640_putreglist(i2c, g_ov2640_uxga_resolution,
OV2640_UXGA_RESOLUTION_NENTRIES);
#else
# error Unknown image resolution
#endif
if (ret < 0)
{
gerr("ERROR: ov2640_putreglist failed: %d\n", ret);
goto errout;
}
/* Color format register settings */
ret = ov2640_putreglist(i2c, g_ov2640_colorfmt_common,
OV2640_COLORFMT_COMMON_NENTRIES);
if (ret < 0)
{
gerr("ERROR: ov2640_putreglist failed: %d\n", ret);
goto errout;
}
#if defined(CONFIG_OV2640_YUV422_COLORFMT)
ret = ov2640_putreglist(i2c, g_ov2640_yuv422_colorfmt,
OV2640_YUV422_COLORFMT_NENTRIES);
#elif defined(CONFIG_OV2640_RGB565_COLORFMT)
ret = ov2640_putreglist(i2c, g_ov2640_rgb565_colorfmt,
OV2640_RGB565_COLORFMT_NENTRIES);
#else
# error Unknown color format
#endif
if (ret < 0)
{
gerr("ERROR: ov2640_putreglist failed: %d\n", ret);
goto errout;
}
#endif /* CONFIG_OV2640_JPEG */
return OK;
errout:
gerr("ERROR: Failed to initialize the OV2640: %d\n", ret);
ov2640_reset(i2c);
return ret;
}
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