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ov5640.c
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/**
******************************************************************************
* @file ov5640.c
* @author MCD Application Team
* @brief This file provides the OV5640 camera driver
******************************************************************************
* @attention
*
* Copyright (c) 2019-2020 STMicroelectronics.
* All rights reserved.
*
* This software is licensed under terms that can be found in the LICENSE file
* in the root directory of this software component.
* If no LICENSE file comes with this software, it is provided AS-IS.
*
******************************************************************************
*/
/* Includes ------------------------------------------------------------------*/
#include "ov5640.h"
/** @addtogroup BSP
* @{
*/
/** @addtogroup Components
* @{
*/
/** @addtogroup OV5640
* @brief This file provides a set of functions needed to drive the
* OV5640 Camera module.
* @{
*/
/** @defgroup OV5640_Private_TypesDefinitions
* @{
*/
/**
* @}
*/
/** @defgroup OV5640_Private_Variables
* @{
*/
OV5640_CAMERA_Drv_t OV5640_CAMERA_Driver =
{
OV5640_Init,
OV5640_DeInit,
OV5640_ReadID,
OV5640_GetCapabilities,
OV5640_SetLightMode,
OV5640_SetColorEffect,
OV5640_SetBrightness,
OV5640_SetSaturation,
OV5640_SetContrast,
OV5640_SetHueDegree,
OV5640_MirrorFlipConfig,
OV5640_ZoomConfig,
OV5640_SetResolution,
OV5640_GetResolution,
OV5640_SetPixelFormat,
OV5640_GetPixelFormat,
OV5640_NightModeConfig
};
/**
* @}
*/
/** @defgroup OV5640_Private_Functions_Prototypes Private Functions Prototypes
* @{
*/
static int32_t OV5640_ReadRegWrap(void *handle, uint16_t Reg, uint8_t *Data, uint16_t Length);
static int32_t OV5640_WriteRegWrap(void *handle, uint16_t Reg, uint8_t *Data, uint16_t Length);
static int32_t OV5640_Delay(OV5640_Object_t *pObj, uint32_t Delay);
/**
* @}
*/
/** @defgroup OV5640_Exported_Functions OV5640 Exported Functions
* @{
*/
/**
* @brief Register component IO bus
* @param Component object pointer
* @retval Component status
*/
int32_t OV5640_RegisterBusIO(OV5640_Object_t *pObj, OV5640_IO_t *pIO)
{
int32_t ret;
if (pObj == NULL)
{
ret = OV5640_ERROR;
}
else
{
pObj->IO.Init = pIO->Init;
pObj->IO.DeInit = pIO->DeInit;
pObj->IO.Address = pIO->Address;
pObj->IO.WriteReg = pIO->WriteReg;
pObj->IO.ReadReg = pIO->ReadReg;
pObj->IO.GetTick = pIO->GetTick;
pObj->Ctx.ReadReg = OV5640_ReadRegWrap;
pObj->Ctx.WriteReg = OV5640_WriteRegWrap;
pObj->Ctx.handle = pObj;
if (pObj->IO.Init != NULL)
{
ret = pObj->IO.Init();
}
else
{
ret = OV5640_ERROR;
}
}
return ret;
}
/**
* @brief Initializes the OV5640 CAMERA component.
* @param pObj pointer to component object
* @param Resolution Camera resolution
* @param PixelFormat pixel format to be configured
* @retval Component status
*/
int32_t OV5640_Init(OV5640_Object_t *pObj, uint32_t Resolution, uint32_t PixelFormat)
{
uint32_t index;
int32_t ret = OV5640_OK;
/* Initialization sequence for OV5640 */
static const uint16_t OV5640_Common[][2] =
{
{OV5640_SCCB_SYSTEM_CTRL1, 0x11},
{OV5640_SYSTEM_CTROL0, 0x82},
{OV5640_SCCB_SYSTEM_CTRL1, 0x03},
{0x3630, 0x36},
{0x3631, 0x0e},
{0x3632, 0xe2},
{0x3633, 0x12},
{0x3621, 0xe0},
{0x3704, 0xa0},
{0x3703, 0x5a},
{0x3715, 0x78},
{0x3717, 0x01},
{0x370b, 0x60},
{0x3705, 0x1a},
{0x3905, 0x02},
{0x3906, 0x10},
{0x3901, 0x0a},
{0x3731, 0x12},
{0x3600, 0x08},
{0x3601, 0x33},
{0x302d, 0x60},
{0x3620, 0x52},
{0x371b, 0x20},
{0x471c, 0x50},
{OV5640_AEC_CTRL13, 0x43},
{OV5640_AEC_GAIN_CEILING_HIGH, 0x00},
{OV5640_AEC_GAIN_CEILING_LOW, 0xf8},
{0x3635, 0x13},
{0x3636, 0x03},
{0x3634, 0x40},
{0x3622, 0x01},
{OV5640_5060HZ_CTRL01, 0x34},
{OV5640_5060HZ_CTRL04, 0x28},
{OV5640_5060HZ_CTRL05, 0x98},
{OV5640_LIGHTMETER1_TH_HIGH, 0x00},
{OV5640_LIGHTMETER1_TH_LOW, 0x00},
{OV5640_LIGHTMETER2_TH_HIGH, 0x01},
{OV5640_LIGHTMETER2_TH_LOW, 0x2c},
{OV5640_SAMPLE_NUMBER_HIGH, 0x9c},
{OV5640_SAMPLE_NUMBER_LOW, 0x40},
{OV5640_TIMING_TC_REG20, 0x06},
{OV5640_TIMING_TC_REG21, 0x00},
{OV5640_TIMING_X_INC, 0x31},
{OV5640_TIMING_Y_INC, 0x31},
{OV5640_TIMING_HS_HIGH, 0x00},
{OV5640_TIMING_HS_LOW, 0x00},
{OV5640_TIMING_VS_HIGH, 0x00},
{OV5640_TIMING_VS_LOW, 0x04},
{OV5640_TIMING_HW_HIGH, 0x0a},
{OV5640_TIMING_HW_LOW, 0x3f},
{OV5640_TIMING_VH_HIGH, 0x07},
{OV5640_TIMING_VH_LOW, 0x9b},
{OV5640_TIMING_DVPHO_HIGH, 0x03},
{OV5640_TIMING_DVPHO_LOW, 0x20},
{OV5640_TIMING_DVPVO_HIGH, 0x02},
{OV5640_TIMING_DVPVO_LOW, 0x58},
/* For 800x480 resolution: OV5640_TIMING_HTS=0x790, OV5640_TIMING_VTS=0x440 */
{OV5640_TIMING_HTS_HIGH, 0x07},
{OV5640_TIMING_HTS_LOW, 0x90},
{OV5640_TIMING_VTS_HIGH, 0x04},
{OV5640_TIMING_VTS_LOW, 0x40},
{OV5640_TIMING_HOFFSET_HIGH, 0x00},
{OV5640_TIMING_HOFFSET_LOW, 0x10},
{OV5640_TIMING_VOFFSET_HIGH, 0x00},
{OV5640_TIMING_VOFFSET_LOW, 0x06},
{0x3618, 0x00},
{0x3612, 0x29},
{0x3708, 0x64},
{0x3709, 0x52},
{0x370c, 0x03},
{OV5640_AEC_CTRL02, 0x03},
{OV5640_AEC_CTRL03, 0xd8},
{OV5640_AEC_B50_STEP_HIGH, 0x01},
{OV5640_AEC_B50_STEP_LOW, 0x27},
{OV5640_AEC_B60_STEP_HIGH, 0x00},
{OV5640_AEC_B60_STEP_LOW, 0xf6},
{OV5640_AEC_CTRL0E, 0x03},
{OV5640_AEC_CTRL0D, 0x04},
{OV5640_AEC_MAX_EXPO_HIGH, 0x03},
{OV5640_AEC_MAX_EXPO_LOW, 0xd8},
{OV5640_BLC_CTRL01, 0x02},
{OV5640_BLC_CTRL04, 0x02},
{OV5640_SYSREM_RESET00, 0x00},
{OV5640_SYSREM_RESET02, 0x1c},
{OV5640_CLOCK_ENABLE00, 0xff},
{OV5640_CLOCK_ENABLE02, 0xc3},
{OV5640_MIPI_CONTROL00, 0x58},
{0x302e, 0x00},
{OV5640_POLARITY_CTRL, 0x22},
{OV5640_FORMAT_CTRL00, 0x6F},
{OV5640_FORMAT_MUX_CTRL, 0x01},
{OV5640_JPG_MODE_SELECT, 0x03},
{OV5640_JPEG_CTRL07, 0x04},
{0x440e, 0x00},
{0x460b, 0x35},
{0x460c, 0x23},
{OV5640_PCLK_PERIOD, 0x22},
{0x3824, 0x02},
{OV5640_ISP_CONTROL00, 0xa7},
{OV5640_ISP_CONTROL01, 0xa3},
{OV5640_AWB_CTRL00, 0xff},
{OV5640_AWB_CTRL01, 0xf2},
{OV5640_AWB_CTRL02, 0x00},
{OV5640_AWB_CTRL03, 0x14},
{OV5640_AWB_CTRL04, 0x25},
{OV5640_AWB_CTRL05, 0x24},
{OV5640_AWB_CTRL06, 0x09},
{OV5640_AWB_CTRL07, 0x09},
{OV5640_AWB_CTRL08, 0x09},
{OV5640_AWB_CTRL09, 0x75},
{OV5640_AWB_CTRL10, 0x54},
{OV5640_AWB_CTRL11, 0xe0},
{OV5640_AWB_CTRL12, 0xb2},
{OV5640_AWB_CTRL13, 0x42},
{OV5640_AWB_CTRL14, 0x3d},
{OV5640_AWB_CTRL15, 0x56},
{OV5640_AWB_CTRL16, 0x46},
{OV5640_AWB_CTRL17, 0xf8},
{OV5640_AWB_CTRL18, 0x04},
{OV5640_AWB_CTRL19, 0x70},
{OV5640_AWB_CTRL20, 0xf0},
{OV5640_AWB_CTRL21, 0xf0},
{OV5640_AWB_CTRL22, 0x03},
{OV5640_AWB_CTRL23, 0x01},
{OV5640_AWB_CTRL24, 0x04},
{OV5640_AWB_CTRL25, 0x12},
{OV5640_AWB_CTRL26, 0x04},
{OV5640_AWB_CTRL27, 0x00},
{OV5640_AWB_CTRL28, 0x06},
{OV5640_AWB_CTRL29, 0x82},
{OV5640_AWB_CTRL30, 0x38},
{OV5640_CMX1, 0x1e},
{OV5640_CMX2, 0x5b},
{OV5640_CMX3, 0x08},
{OV5640_CMX4, 0x0a},
{OV5640_CMX5, 0x7e},
{OV5640_CMX6, 0x88},
{OV5640_CMX7, 0x7c},
{OV5640_CMX8, 0x6c},
{OV5640_CMX9, 0x10},
{OV5640_CMXSIGN_HIGH, 0x01},
{OV5640_CMXSIGN_LOW, 0x98},
{OV5640_CIP_SHARPENMT_TH1, 0x08},
{OV5640_CIP_SHARPENMT_TH2, 0x30},
{OV5640_CIP_SHARPENMT_OFFSET1, 0x10},
{OV5640_CIP_SHARPENMT_OFFSET2, 0x00},
{OV5640_CIP_DNS_TH1, 0x08},
{OV5640_CIP_DNS_TH2, 0x30},
{OV5640_CIP_DNS_OFFSET1, 0x08},
{OV5640_CIP_DNS_OFFSET2, 0x16},
{OV5640_CIP_CTRL, 0x08},
{OV5640_CIP_SHARPENTH_TH1, 0x30},
{OV5640_CIP_SHARPENTH_TH2, 0x04},
{OV5640_CIP_SHARPENTH_OFFSET1, 0x06},
{OV5640_GAMMA_CTRL00, 0x01},
{OV5640_GAMMA_YST00, 0x08},
{OV5640_GAMMA_YST01, 0x14},
{OV5640_GAMMA_YST02, 0x28},
{OV5640_GAMMA_YST03, 0x51},
{OV5640_GAMMA_YST04, 0x65},
{OV5640_GAMMA_YST05, 0x71},
{OV5640_GAMMA_YST06, 0x7d},
{OV5640_GAMMA_YST07, 0x87},
{OV5640_GAMMA_YST08, 0x91},
{OV5640_GAMMA_YST09, 0x9a},
{OV5640_GAMMA_YST0A, 0xaa},
{OV5640_GAMMA_YST0B, 0xb8},
{OV5640_GAMMA_YST0C, 0xcd},
{OV5640_GAMMA_YST0D, 0xdd},
{OV5640_GAMMA_YST0E, 0xea},
{OV5640_GAMMA_YST0F, 0x1d},
{OV5640_SDE_CTRL0, 0x02},
{OV5640_SDE_CTRL3, 0x40},
{OV5640_SDE_CTRL4, 0x10},
{OV5640_SDE_CTRL9, 0x10},
{OV5640_SDE_CTRL10, 0x00},
{OV5640_SDE_CTRL11, 0xf8},
{OV5640_GMTRX00, 0x23},
{OV5640_GMTRX01, 0x14},
{OV5640_GMTRX02, 0x0f},
{OV5640_GMTRX03, 0x0f},
{OV5640_GMTRX04, 0x12},
{OV5640_GMTRX05, 0x26},
{OV5640_GMTRX10, 0x0c},
{OV5640_GMTRX11, 0x08},
{OV5640_GMTRX12, 0x05},
{OV5640_GMTRX13, 0x05},
{OV5640_GMTRX14, 0x08},
{OV5640_GMTRX15, 0x0d},
{OV5640_GMTRX20, 0x08},
{OV5640_GMTRX21, 0x03},
{OV5640_GMTRX22, 0x00},
{OV5640_GMTRX23, 0x00},
{OV5640_GMTRX24, 0x03},
{OV5640_GMTRX25, 0x09},
{OV5640_GMTRX30, 0x07},
{OV5640_GMTRX31, 0x03},
{OV5640_GMTRX32, 0x00},
{OV5640_GMTRX33, 0x01},
{OV5640_GMTRX34, 0x03},
{OV5640_GMTRX35, 0x08},
{OV5640_GMTRX40, 0x0d},
{OV5640_GMTRX41, 0x08},
{OV5640_GMTRX42, 0x05},
{OV5640_GMTRX43, 0x06},
{OV5640_GMTRX44, 0x08},
{OV5640_GMTRX45, 0x0e},
{OV5640_GMTRX50, 0x29},
{OV5640_GMTRX51, 0x17},
{OV5640_GMTRX52, 0x11},
{OV5640_GMTRX53, 0x11},
{OV5640_GMTRX54, 0x15},
{OV5640_GMTRX55, 0x28},
{OV5640_BRMATRX00, 0x46},
{OV5640_BRMATRX01, 0x26},
{OV5640_BRMATRX02, 0x08},
{OV5640_BRMATRX03, 0x26},
{OV5640_BRMATRX04, 0x64},
{OV5640_BRMATRX05, 0x26},
{OV5640_BRMATRX06, 0x24},
{OV5640_BRMATRX07, 0x22},
{OV5640_BRMATRX08, 0x24},
{OV5640_BRMATRX09, 0x24},
{OV5640_BRMATRX20, 0x06},
{OV5640_BRMATRX21, 0x22},
{OV5640_BRMATRX22, 0x40},
{OV5640_BRMATRX23, 0x42},
{OV5640_BRMATRX24, 0x24},
{OV5640_BRMATRX30, 0x26},
{OV5640_BRMATRX31, 0x24},
{OV5640_BRMATRX32, 0x22},
{OV5640_BRMATRX33, 0x22},
{OV5640_BRMATRX34, 0x26},
{OV5640_BRMATRX40, 0x44},
{OV5640_BRMATRX41, 0x24},
{OV5640_BRMATRX42, 0x26},
{OV5640_BRMATRX43, 0x28},
{OV5640_BRMATRX44, 0x42},
{OV5640_LENC_BR_OFFSET, 0xce},
{0x5025, 0x00},
{OV5640_AEC_CTRL0F, 0x30},
{OV5640_AEC_CTRL10, 0x28},
{OV5640_AEC_CTRL1B, 0x30},
{OV5640_AEC_CTRL1E, 0x26},
{OV5640_AEC_CTRL11, 0x60},
{OV5640_AEC_CTRL1F, 0x14},
{OV5640_SYSTEM_CTROL0, 0x02},
};
uint8_t tmp;
if (pObj->IsInitialized == 0U)
{
/* Check if resolution is supported */
if ((Resolution > OV5640_R800x480) ||
((PixelFormat != OV5640_RGB565) && (PixelFormat != OV5640_YUV422) &&
(PixelFormat != OV5640_RGB888) && (PixelFormat != OV5640_Y8) &&
(PixelFormat != OV5640_JPEG)))
{
ret = OV5640_ERROR;
}
else
{
/* Set common parameters for all resolutions */
for (index = 0; index < (sizeof(OV5640_Common) / 4U) ; index++)
{
if (ret != OV5640_ERROR)
{
tmp = (uint8_t)OV5640_Common[index][1];
if (ov5640_write_reg(&pObj->Ctx, OV5640_Common[index][0], &tmp, 1) != OV5640_OK)
{
ret = OV5640_ERROR;
}
}
}
if(ret == OV5640_OK)
{
/* Set configuration for Serial Interface */
if(pObj->Mode == SERIAL_MODE)
{
if(OV5640_EnableMIPIMode(pObj) != OV5640_OK)
{
ret = OV5640_ERROR;
}
else if(OV5640_SetMIPIVirtualChannel(pObj, pObj->VirtualChannelID) != OV5640_OK)
{
ret = OV5640_ERROR;
}
}
else
{
/* Set configuration for parallel Interface */
if(OV5640_EnableDVPMode(pObj) != OV5640_OK)
{
ret = OV5640_ERROR;
}
else
{
ret = OV5640_OK;
}
}
}
if (ret == OV5640_OK)
{
/* Set specific parameters for each resolution */
if (OV5640_SetResolution(pObj, Resolution) != OV5640_OK)
{
ret = OV5640_ERROR;
}/* Set specific parameters for each pixel format */
else if (OV5640_SetPixelFormat(pObj, PixelFormat) != OV5640_OK)
{
ret = OV5640_ERROR;
}/* Set PixelClock, Href and VSync Polarity */
else if (OV5640_SetPolarities(pObj, OV5640_POLARITY_PCLK_HIGH, OV5640_POLARITY_HREF_HIGH,
OV5640_POLARITY_VSYNC_HIGH) != OV5640_OK)
{
ret = OV5640_ERROR;
}
else
{
pObj->IsInitialized = 1U;
}
}
}
}
return ret;
}
/**
* @brief De-initializes the camera sensor.
* @param pObj pointer to component object
* @retval Component status
*/
int32_t OV5640_DeInit(OV5640_Object_t *pObj)
{
if (pObj->IsInitialized == 1U)
{
/* De-initialize camera sensor interface */
pObj->IsInitialized = 0U;
}
return OV5640_OK;
}
/**
* @brief Set OV5640 camera Pixel Format.
* @param pObj pointer to component object
* @param PixelFormat pixel format to be configured
* @retval Component status
*/
int32_t OV5640_SetPixelFormat(OV5640_Object_t *pObj, uint32_t PixelFormat)
{
int32_t ret = OV5640_OK;
uint32_t index;
uint8_t tmp;
/* Initialization sequence for RGB565 pixel format */
static const uint16_t OV5640_PF_RGB565[][2] =
{
/* SET PIXEL FORMAT: RGB565 */
{OV5640_FORMAT_CTRL00, 0x6F},
{OV5640_FORMAT_MUX_CTRL, 0x01},
};
/* Initialization sequence for YUV422 pixel format */
static const uint16_t OV5640_PF_YUV422[][2] =
{
/* SET PIXEL FORMAT: YUV422 */
{OV5640_FORMAT_CTRL00, 0x30},
{OV5640_FORMAT_MUX_CTRL, 0x00},
};
/* Initialization sequence for RGB888 pixel format */
static const uint16_t OV5640_PF_RGB888[][2] =
{
/* SET PIXEL FORMAT: RGB888 (RGBRGB)*/
{OV5640_FORMAT_CTRL00, 0x23},
{OV5640_FORMAT_MUX_CTRL, 0x01},
};
/* Initialization sequence for Monochrome 8bits pixel format */
static const uint16_t OV5640_PF_Y8[][2] =
{
/* SET PIXEL FORMAT: Y 8bits */
{OV5640_FORMAT_CTRL00, 0x10},
{OV5640_FORMAT_MUX_CTRL, 0x00},
};
/* Initialization sequence for JPEG format */
static const uint16_t OV5640_PF_JPEG[][2] =
{
/* SET PIXEL FORMAT: JPEG */
{OV5640_FORMAT_CTRL00, 0x30},
{OV5640_FORMAT_MUX_CTRL, 0x00},
};
/* Check if PixelFormat is supported */
if ((PixelFormat != OV5640_RGB565) && (PixelFormat != OV5640_YUV422) &&
(PixelFormat != OV5640_RGB888) && (PixelFormat != OV5640_Y8) &&
(PixelFormat != OV5640_JPEG))
{
/* Pixel format not supported */
ret = OV5640_ERROR;
}
else
{
/* Set specific parameters for each PixelFormat */
switch (PixelFormat)
{
case OV5640_YUV422:
for (index = 0; index < (sizeof(OV5640_PF_YUV422) / 4U); index++)
{
if (ret != OV5640_ERROR)
{
tmp = (uint8_t)OV5640_PF_YUV422[index][1];
if (ov5640_write_reg(&pObj->Ctx, OV5640_PF_YUV422[index][0], &tmp, 1) != OV5640_OK)
{
ret = OV5640_ERROR;
}
else
{
(void)OV5640_Delay(pObj, 1);
}
}
}
break;
case OV5640_RGB888:
for (index = 0; index < (sizeof(OV5640_PF_RGB888) / 4U); index++)
{
if (ret != OV5640_ERROR)
{
tmp = (uint8_t)OV5640_PF_RGB888[index][1];
if (ov5640_write_reg(&pObj->Ctx, OV5640_PF_RGB888[index][0], &tmp, 1) != OV5640_OK)
{
ret = OV5640_ERROR;
}
else
{
(void)OV5640_Delay(pObj, 1);
}
}
}
break;
case OV5640_Y8:
for (index = 0; index < (sizeof(OV5640_PF_Y8) / 4U); index++)
{
if (ret != OV5640_ERROR)
{
tmp = (uint8_t)OV5640_PF_Y8[index][1];
if (ov5640_write_reg(&pObj->Ctx, OV5640_PF_Y8[index][0], &tmp, 1) != OV5640_OK)
{
ret = OV5640_ERROR;
}
else
{
(void)OV5640_Delay(pObj, 1);
}
}
}
break;
case OV5640_JPEG:
for (index = 0; index < (sizeof(OV5640_PF_JPEG) / 4U); index++)
{
if (ret != OV5640_ERROR)
{
tmp = (uint8_t)OV5640_PF_JPEG[index][1];
if (ov5640_write_reg(&pObj->Ctx, OV5640_PF_JPEG[index][0], &tmp, 1) != OV5640_OK)
{
ret = OV5640_ERROR;
}
else
{
(void)OV5640_Delay(pObj, 1);
}
}
}
break;
case OV5640_RGB565:
default:
for (index = 0; index < (sizeof(OV5640_PF_RGB565) / 4U); index++)
{
if (ret != OV5640_ERROR)
{
tmp = (uint8_t)OV5640_PF_RGB565[index][1];
if (ov5640_write_reg(&pObj->Ctx, OV5640_PF_RGB565[index][0], &tmp, 1) != OV5640_OK)
{
ret = OV5640_ERROR;
}
else
{
(void)OV5640_Delay(pObj, 1);
}
}
}
break;
}
if (PixelFormat == OV5640_JPEG)
{
if (ov5640_read_reg(&pObj->Ctx, OV5640_TIMING_TC_REG21, &tmp, 1) != OV5640_OK)
{
ret = OV5640_ERROR;
}
else
{
tmp |= (1 << 5);
if (ov5640_write_reg(&pObj->Ctx, OV5640_TIMING_TC_REG21, &tmp, 1) != OV5640_OK)
{
ret = OV5640_ERROR;
}
else
{
if (ov5640_read_reg(&pObj->Ctx, OV5640_SYSREM_RESET02, &tmp, 1) != OV5640_OK)
{
ret = OV5640_ERROR;
}
else
{
tmp &= ~((1 << 4) | (1 << 3) | (1 << 2));
if (ov5640_write_reg(&pObj->Ctx, OV5640_SYSREM_RESET02, &tmp, 1) != OV5640_OK)
{
ret = OV5640_ERROR;
}
else
{
if (ov5640_read_reg(&pObj->Ctx, OV5640_CLOCK_ENABLE02, &tmp, 1) != OV5640_OK)
{
ret = OV5640_ERROR;
}
else
{
tmp |= ((1 << 5) | (1 << 3));
if (ov5640_write_reg(&pObj->Ctx, OV5640_CLOCK_ENABLE02, &tmp, 1) != OV5640_OK)
{
ret = OV5640_ERROR;
}
}
}
}
}
}
}
}
return ret;
}
/**
* @brief Set OV5640 camera Pixel Format.
* @param pObj pointer to component object
* @param PixelFormat pixel format to be configured
* @retval Component status
*/
int32_t OV5640_GetPixelFormat(OV5640_Object_t *pObj, uint32_t *PixelFormat)
{
(void)(pObj);
(void)(PixelFormat);
return OV5640_ERROR;
}
/**
* @brief Get OV5640 camera resolution.
* @param pObj pointer to component object
* @param Resolution Camera resolution
* @retval Component status
*/
int32_t OV5640_SetResolution(OV5640_Object_t *pObj, uint32_t Resolution)
{
int32_t ret = OV5640_OK;
uint32_t index;
uint8_t tmp;
/* Initialization sequence for WVGA resolution (800x480)*/
static const uint16_t OV5640_WVGA[][2] =
{
{OV5640_TIMING_DVPHO_HIGH, 0x03},
{OV5640_TIMING_DVPHO_LOW, 0x20},
{OV5640_TIMING_DVPVO_HIGH, 0x01},
{OV5640_TIMING_DVPVO_LOW, 0xE0},
};
/* Initialization sequence for VGA resolution (640x480)*/
static const uint16_t OV5640_VGA[][2] =
{
{OV5640_TIMING_DVPHO_HIGH, 0x02},
{OV5640_TIMING_DVPHO_LOW, 0x80},
{OV5640_TIMING_DVPVO_HIGH, 0x01},
{OV5640_TIMING_DVPVO_LOW, 0xE0},
};
/* Initialization sequence for 480x272 resolution */
static const uint16_t OV5640_480x272[][2] =
{
{OV5640_TIMING_DVPHO_HIGH, 0x01},
{OV5640_TIMING_DVPHO_LOW, 0xE0},
{OV5640_TIMING_DVPVO_HIGH, 0x01},
{OV5640_TIMING_DVPVO_LOW, 0x10},
};
/* Initialization sequence for QVGA resolution (320x240) */
static const uint16_t OV5640_QVGA[][2] =
{
{OV5640_TIMING_DVPHO_HIGH, 0x01},
{OV5640_TIMING_DVPHO_LOW, 0x40},
{OV5640_TIMING_DVPVO_HIGH, 0x00},
{OV5640_TIMING_DVPVO_LOW, 0xF0},
};
/* Initialization sequence for QQVGA resolution (160x120) */
static const uint16_t OV5640_QQVGA[][2] =
{
{OV5640_TIMING_DVPHO_HIGH, 0x00},
{OV5640_TIMING_DVPHO_LOW, 0xA0},
{OV5640_TIMING_DVPVO_HIGH, 0x00},
{OV5640_TIMING_DVPVO_LOW, 0x78},
};
/* Check if resolution is supported */
if (Resolution > OV5640_R800x480)
{
ret = OV5640_ERROR;
}
else
{
/* Initialize OV5640 */
switch (Resolution)
{
case OV5640_R160x120:
for (index = 0; index < (sizeof(OV5640_QQVGA) / 4U); index++)
{
if (ret != OV5640_ERROR)
{
tmp = (uint8_t)OV5640_QQVGA[index][1];
if (ov5640_write_reg(&pObj->Ctx, OV5640_QQVGA[index][0], &tmp, 1) != OV5640_OK)
{
ret = OV5640_ERROR;
}
}
}
break;
case OV5640_R320x240:
for (index = 0; index < (sizeof(OV5640_QVGA) / 4U); index++)
{
if (ret != OV5640_ERROR)
{
tmp = (uint8_t)OV5640_QVGA[index][1];
if (ov5640_write_reg(&pObj->Ctx, OV5640_QVGA[index][0], &tmp, 1) != OV5640_OK)
{
ret = OV5640_ERROR;
}
}
}
break;
case OV5640_R480x272:
for (index = 0; index < (sizeof(OV5640_480x272) / 4U); index++)
{
if (ret != OV5640_ERROR)
{
tmp = (uint8_t)OV5640_480x272[index][1];
if (ov5640_write_reg(&pObj->Ctx, OV5640_480x272[index][0], &tmp, 1) != OV5640_OK)
{
ret = OV5640_ERROR;
}
}
}
break;
case OV5640_R640x480:
for (index = 0; index < (sizeof(OV5640_VGA) / 4U); index++)
{
if (ret != OV5640_ERROR)
{
tmp = (uint8_t)OV5640_VGA[index][1];
if (ov5640_write_reg(&pObj->Ctx, OV5640_VGA[index][0], &tmp, 1) != OV5640_OK)
{
ret = OV5640_ERROR;
}
}
}
break;
case OV5640_R800x480:
for (index = 0; index < (sizeof(OV5640_WVGA) / 4U); index++)
{
if (ret != OV5640_ERROR)
{
tmp = (uint8_t)OV5640_WVGA[index][1];
if (ov5640_write_reg(&pObj->Ctx, OV5640_WVGA[index][0], &tmp, 1) != OV5640_OK)
{
ret = OV5640_ERROR;
}
}
}
break;
default:
ret = OV5640_ERROR;
break;
}
}
return ret;
}
/**
* @brief Get OV5640 camera resolution.
* @param pObj pointer to component object
* @param Resolution Camera resolution
* @retval Component status
*/
int32_t OV5640_GetResolution(OV5640_Object_t *pObj, uint32_t *Resolution)
{
int32_t ret;
uint16_t x_size;
uint16_t y_size;
uint8_t tmp;
if (ov5640_read_reg(&pObj->Ctx, OV5640_TIMING_DVPHO_HIGH, &tmp, 1) != OV5640_OK)
{
ret = OV5640_ERROR;
}
else
{
x_size = (uint16_t)tmp << 8U;
if (ov5640_read_reg(&pObj->Ctx, OV5640_TIMING_DVPHO_LOW, &tmp, 1) != OV5640_OK)
{
ret = OV5640_ERROR;
}
else
{
x_size |= tmp;
if (ov5640_read_reg(&pObj->Ctx, OV5640_TIMING_DVPVO_HIGH, &tmp, 1) != OV5640_OK)
{
ret = OV5640_ERROR;
}
else
{
y_size = (uint16_t)tmp << 8U;
if (ov5640_read_reg(&pObj->Ctx, OV5640_TIMING_DVPVO_LOW, &tmp, 1) != OV5640_OK)
{
ret = OV5640_ERROR;
}
else
{
y_size |= tmp;
if ((x_size == 800U) && (y_size == 480U))
{
*Resolution = OV5640_R800x480;
ret = OV5640_OK;
}
else if ((x_size == 640U) && (y_size == 480U))
{
*Resolution = OV5640_R640x480;
ret = OV5640_OK;
}
else if ((x_size == 480U) && (y_size == 272U))
{
*Resolution = OV5640_R480x272;
ret = OV5640_OK;
}
else if ((x_size == 320U) && (y_size == 240U))
{
*Resolution = OV5640_R320x240;
ret = OV5640_OK;
}
else if ((x_size == 160U) && (y_size == 120U))
{
*Resolution = OV5640_R160x120;
ret = OV5640_OK;
}
else
{
ret = OV5640_ERROR;
}
}
}
}
}
return ret;
}
/**
* @brief Set OV5640 camera PCLK, HREF and VSYNC Polarities
* @param pObj pointer to component object
* @param PclkPolarity Polarity of the PixelClock
* @param HrefPolarity Polarity of the Href
* @param VsyncPolarity Polarity of the Vsync
* @retval Component status
*/
int32_t OV5640_SetPolarities(OV5640_Object_t *pObj, uint32_t PclkPolarity, uint32_t HrefPolarity,
uint32_t VsyncPolarity)
{
uint8_t tmp;
int32_t ret = OV5640_OK;
if ((pObj == NULL) || ((PclkPolarity != OV5640_POLARITY_PCLK_LOW) && (PclkPolarity != OV5640_POLARITY_PCLK_HIGH)) ||
((HrefPolarity != OV5640_POLARITY_HREF_LOW) && (HrefPolarity != OV5640_POLARITY_HREF_HIGH)) ||
((VsyncPolarity != OV5640_POLARITY_VSYNC_LOW) && (VsyncPolarity != OV5640_POLARITY_VSYNC_HIGH)))
{
ret = OV5640_ERROR;
}
else
{
tmp = (uint8_t)(PclkPolarity << 5U) | (HrefPolarity << 1U) | VsyncPolarity;
if (ov5640_write_reg(&pObj->Ctx, OV5640_POLARITY_CTRL, &tmp, 1) != OV5640_OK)
{
ret = OV5640_ERROR;
}
}
return ret;
}
/**
* @brief get OV5640 camera PCLK, HREF and VSYNC Polarities
* @param pObj pointer to component object
* @param PclkPolarity Polarity of the PixelClock
* @param HrefPolarity Polarity of the Href
* @param VsyncPolarity Polarity of the Vsync
* @retval Component status
*/
int32_t OV5640_GetPolarities(OV5640_Object_t *pObj, uint32_t *PclkPolarity, uint32_t *HrefPolarity,
uint32_t *VsyncPolarity)
{
uint8_t tmp;
int32_t ret = OV5640_OK;
if ((pObj == NULL) || (PclkPolarity == NULL) || (HrefPolarity == NULL) || (VsyncPolarity == NULL))
{
ret = OV5640_ERROR;
}
else if (ov5640_read_reg(&pObj->Ctx, OV5640_POLARITY_CTRL, &tmp, 1) != OV5640_OK)
{
ret = OV5640_ERROR;
}
else
{
*PclkPolarity = (tmp >> 5U) & 0x01U;
*HrefPolarity = (tmp >> 1U) & 0x01U;
*VsyncPolarity = tmp & 0x01;
}
return ret;
}
/**
* @brief Read the OV5640 Camera identity.
* @param pObj pointer to component object
* @param Id pointer to component ID
* @retval Component status