/* * Copyright (c) 2021 HPMicro * * SPDX-License-Identifier: BSD-3-Clause * */ #include "hpm_ov5640.h" static const ov5640_reg_val_t ov5640_init_param[] = { /* system setting */ {0x3008, 0x42}, /* software power down, bit[6] */ {0x3103, 0x03}, /* system clock from PLL, bit[1] */ {0x3037, 0x13}, /* PLL root divider, bit[4], PLL pre-divider, bit[3:0] */ {0x3108, 0x01}, /* PCLK root divider, bit[5:4], SCLK2x root divider, bit[3:2], SCLK root divider, bit[1:0] */ {0x3630, 0x36}, {0x3631, 0x0e}, {0x3632, 0xe2}, {0x3633, 0x12}, {0x3621, 0xe0}, {0x3704, 0xa0}, {0x3703, 0x5a}, {0x302c, 0xc2}, /* pad control */ {0x4004, 0x02}, /* BLC 2 lines */ {0x3002, 0x1c}, /* reset JFIFO, SFIFO, JPEG */ {0x3006, 0xc3}, /* disable clock of JPEG2x, JPEG */ {0x4713, 0x03}, /* JPEG mode 3 */ {0x4407, 0x04}, /* Quantization scale */ {0x460b, 0x35}, {0x5001, 0xa3}, /* SDE on, scale on, UV average off, color matrix on, AWB on */ {0x3503, 0x00}, /* AEC/AGC on */ {0x3c07, 0x08}, /* light meter 1 threshold [7:0] */ {0x3820, 0x41}, /* Sensor flip off, ISP flip on */ {0x3821, 0x07}, /* Sensor mirror on, ISP mirror on, H binning on */ {0x3618, 0x00}, {0x3612, 0x29}, {0x3709, 0x52}, {0x370c, 0x03}, {0x3715, 0x78}, {0x3717, 0x01}, {0x370b, 0x60}, {0x3705, 0x1a}, {0x3905, 0x02}, {0x3906, 0x10}, {0x3901, 0x0a}, {0x3731, 0x12}, {0x3600, 0x08}, /* VCM control */ {0x3601, 0x33}, /* VCM control */ {0x302d, 0x60}, /* system control */ {0x3620, 0x52}, {0x371b, 0x20}, {0x471c, 0x50}, {0x3a13, 0x43}, /* pre-gain = 1.047x */ {0x3a18, 0x00}, /* gain ceiling */ {0x3a19, 0xf8}, /* gain ceiling = 15.5x */ {0x3635, 0x13}, {0x3636, 0x03}, {0x3634, 0x40}, {0x3622, 0x01}, /* 50/60Hz detection */ {0x3a02, 0x0b}, /* 60Hz max exposure, night mode 5fps */ {0x3a03, 0x88}, /* 60Hz max exposure */ {0x3a14, 0x0b}, /* 50Hz max exposure, night mode 5fps */ {0x3a15, 0x88}, /* 50Hz max exposure */ {0x3c01, 0x34}, /* Band auto, bit[7] */ {0x3c04, 0x28}, /* threshold low sum */ {0x3c05, 0x98}, /* threshold high sum */ {0x3c06, 0x00}, /* light meter 1 threshold[15:8] */ {0x3c07, 0x08}, /* light meter 1 threshold[7:0] */ {0x3c08, 0x00}, /* light meter 2 threshold[15:8] */ {0x3c09, 0x1c}, /* light meter 2 threshold[7:0] */ {0x3c0a, 0x9c}, /* sample number[15:8] */ {0x3c0b, 0x40}, /* sample number[7:0] */ {0x3708, 0x64}, {0x4001, 0x02}, /* BLC start from line 2 */ {0x4005, 0x1a}, /* BLC always update */ {0x3000, 0x00}, /* enable blocks */ {0x3004, 0xff}, /* enable clocks */ {0x302e, 0x00}, {0x440e, 0x00}, {0x5000, 0xa7}, /* Lenc on, raw gamma on, BPC on, WPC on, CIP on */ /* AEC target */ {0x3a0f, 0x30}, /* stable range in high */ {0x3a10, 0x28}, /* stable range in low */ {0x3a1b, 0x30}, /* stable range out high */ {0x3a1e, 0x26}, /* stable range out low */ {0x3a11, 0x60}, /* fast zone high */ {0x3a1f, 0x14}, /* fast zone low */ /* Lens correction */ {0x5800, 0x23}, {0x5801, 0x14}, {0x5802, 0x0f}, {0x5803, 0x0f}, {0x5804, 0x12}, {0x5805, 0x26}, {0x5806, 0x0c}, {0x5807, 0x08}, {0x5808, 0x05}, {0x5809, 0x05}, {0x580a, 0x08}, {0x580b, 0x0d}, {0x580c, 0x08}, {0x580d, 0x03}, {0x580e, 0x00}, {0x580f, 0x00}, {0x5810, 0x03}, {0x5811, 0x09}, {0x5812, 0x07}, {0x5813, 0x03}, {0x5814, 0x00}, {0x5815, 0x01}, {0x5816, 0x03}, {0x5817, 0x08}, {0x5818, 0x0d}, {0x5819, 0x08}, {0x581a, 0x05}, {0x581b, 0x06}, {0x581c, 0x08}, {0x581d, 0x0e}, {0x581e, 0x29}, {0x581f, 0x17}, {0x5820, 0x11}, {0x5821, 0x11}, {0x5822, 0x15}, {0x5823, 0x28}, {0x5824, 0x46}, {0x5825, 0x26}, {0x5826, 0x08}, {0x5827, 0x26}, {0x5828, 0x64}, {0x5829, 0x26}, {0x582a, 0x24}, {0x582b, 0x22}, {0x582c, 0x24}, {0x582d, 0x24}, {0x582e, 0x06}, {0x582f, 0x22}, {0x5830, 0x40}, {0x5831, 0x42}, {0x5832, 0x24}, {0x5833, 0x26}, {0x5834, 0x24}, {0x5835, 0x22}, {0x5836, 0x22}, {0x5837, 0x26}, {0x5838, 0x44}, {0x5839, 0x24}, {0x583a, 0x26}, {0x583b, 0x28}, {0x583c, 0x42}, {0x583d, 0xce}, /* lenc BR offset */ /* AWB */ {0x5180, 0xff}, /* AWB B block */ {0x5181, 0xf2}, /* AWB control */ {0x5182, 0x00}, /* [7:4] max local counter, [3:0] max fast counter */ {0x5183, 0x14}, /* AWB advanced */ {0x5184, 0x25}, {0x5185, 0x24}, {0x5186, 0x09}, {0x5187, 0x09}, {0x5188, 0x09}, {0x5189, 0x75}, {0x518a, 0x54}, {0x518b, 0xe0}, {0x518c, 0xb2}, {0x518d, 0x42}, {0x518e, 0x3d}, {0x518f, 0x56}, {0x5190, 0x46}, {0x5191, 0xf8}, /* AWB top limit */ {0x5192, 0x04}, /* AWB bottom limit */ {0x5193, 0x70}, /* red limit */ {0x5194, 0xf0}, /* green limit */ {0x5195, 0xf0}, /* blue limit */ {0x5196, 0x03}, /* AWB control */ {0x5197, 0x01}, /* local limit */ {0x5198, 0x04}, {0x5199, 0x12}, {0x519a, 0x04}, {0x519b, 0x00}, {0x519c, 0x06}, {0x519d, 0x82}, {0x519e, 0x38}, /* AWB control */ /* Gamma */ {0x5480, 0x01}, /* Gamma bias plus on, bit[0] */ {0x5481, 0x08}, {0x5482, 0x14}, {0x5483, 0x28}, {0x5484, 0x51}, {0x5485, 0x65}, {0x5486, 0x71}, {0x5487, 0x7d}, {0x5488, 0x87}, {0x5489, 0x91}, {0x548a, 0x9a}, {0x548b, 0xaa}, {0x548c, 0xb8}, {0x548d, 0xcd}, {0x548e, 0xdd}, {0x548f, 0xea}, {0x5490, 0x1d}, /* color matrix */ {0x5381, 0x1e}, /* CMX1 for Y */ {0x5382, 0x5b}, /* CMX2 for Y */ {0x5383, 0x08}, /* CMX3 for Y */ {0x5384, 0x0a}, /* CMX4 for U */ {0x5385, 0x7e}, /* CMX5 for U */ {0x5386, 0x88}, /* CMX6 for U */ {0x5387, 0x7c}, /* CMX7 for V */ {0x5388, 0x6c}, /* CMX8 for V */ {0x5389, 0x10}, /* CMX9 for V */ {0x538a, 0x01}, /* sign[9] */ {0x538b, 0x98}, /* sign[8:1] */ /* UV adjust */ {0x5580, 0x06}, /* saturation on, bit[1] */ {0x5583, 0x40}, {0x5584, 0x10}, {0x5003, 0x08}, {0x5589, 0x10}, {0x558a, 0x00}, {0x558b, 0xf8}, {0x501d, 0x40}, /* enable manual offset of contrast */ /* CIP */ {0x5300, 0x08}, /* CIP sharpen MT threshold 1 */ {0x5301, 0x30}, /* CIP sharpen MT threshold 2 */ {0x5302, 0x10}, /* CIP sharpen MT offset 1 */ {0x5303, 0x00}, /* CIP sharpen MT offset 2 */ {0x5304, 0x08}, /* CIP DNS threshold 1 */ {0x5305, 0x30}, /* CIP DNS threshold 2 */ {0x5306, 0x08}, /* CIP DNS offset 1 */ {0x5307, 0x16}, /* CIP DNS offset 2 */ {0x5309, 0x08}, /* CIP sharpen TH threshold 1 */ {0x530a, 0x30}, /* CIP sharpen TH threshold 2 */ {0x530b, 0x04}, /* CIP sharpen TH offset 1 */ {0x530c, 0x06}, /* CIP sharpen TH offset 2 */ {0x5025, 0x00}, {0x3008, 0x02}, /* wake up from standby, bit[6] */ }; /* Resolution configuration */ static const ov5640_reg_val_t ov5640_resolution_800_480_param[] = { {0x3800, 0x00}, {0x3801, 0x00}, {0x3802, 0x00}, {0x3803, 0x04}, {0x3804, 0x0a}, {0x3805, 0x3f}, {0x3806, 0x07}, {0x3807, 0x9b}, {0x3808, 0x03}, {0x3809, 0x20}, {0x380A, 0x01}, {0x380B, 0xe0}, {0x380C, 0x07}, {0x380D, 0x68}, {0x380E, 0x03}, {0x380F, 0xd8}, {0x3810, 0x00}, {0x3811, 0x10}, {0x3812, 0x00}, {0x3813, 0x06}, {0x3814, 0x31}, {0x3815, 0x31}, }; static const ov5640_reg_val_t ov5640_resolution_vga_param[] = { {0x3800, 0x00}, {0x3801, 0x00}, {0x3802, 0x00}, {0x3803, 0x04}, {0x3804, 0x0a}, {0x3805, 0x3f}, {0x3806, 0x07}, {0x3807, 0x9b}, {0x3808, 0x02}, {0x3809, 0x80}, {0x380A, 0x01}, {0x380B, 0xe0}, {0x380C, 0x07}, {0x380D, 0x68}, {0x380E, 0x03}, {0x380F, 0xd8}, {0x3810, 0x00}, {0x3811, 0x10}, {0x3812, 0x00}, {0x3813, 0x06}, {0x3814, 0x31}, {0x3815, 0x31}, }; static const ov5640_reg_val_t ov5640_resolution_qvga_param[] = { {0x3800, 0x00}, {0x3801, 0x00}, {0x3802, 0x00}, {0x3803, 0x04}, {0x3804, 0x0a}, {0x3805, 0x3f}, {0x3806, 0x07}, {0x3807, 0x9b}, {0x3808, 0x01}, {0x3809, 0x40}, {0x380A, 0x00}, {0x380B, 0xf0}, {0x380C, 0x07}, {0x380D, 0x68}, {0x380E, 0x03}, {0x380F, 0xd8}, {0x3810, 0x00}, {0x3811, 0x10}, {0x3812, 0x00}, {0x3813, 0x06}, {0x3814, 0x31}, {0x3815, 0x31}, }; static const ov5640_reg_val_t ov5640_resolution_480_272_param[] = { {0x3800, 0x00}, {0x3801, 0x00}, {0x3802, 0x00}, {0x3803, 0xfa}, {0x3804, 0x0a}, {0x3805, 0x3f}, {0x3806, 0x06}, {0x3807, 0xa9}, {0x3808, 0x01}, {0x3809, 0xE0}, {0x380A, 0x01}, {0x380B, 0x10}, {0x380C, 0x07}, {0x380D, 0x64}, {0x380E, 0x02}, {0x380F, 0xe4}, {0x3810, 0x00}, {0x3811, 0x10}, {0x3812, 0x00}, {0x3813, 0x04}, {0x3814, 0x31}, {0x3815, 0x31}, }; static const ov5640_reg_val_t ov5640_resolution_720p_param[] = { {0x3800, 0x00}, {0x3801, 0x00}, {0x3802, 0x00}, {0x3803, 0xfa}, {0x3804, 0x0a}, {0x3805, 0x3f}, {0x3806, 0x06}, {0x3807, 0xa9}, {0x3808, 0x05}, {0x3809, 0x00}, {0x380A, 0x02}, {0x380B, 0xd0}, {0x380C, 0x07}, {0x380D, 0x64}, {0x380E, 0x02}, {0x380F, 0xe4}, {0x3810, 0x00}, {0x3811, 0x10}, {0x3812, 0x00}, {0x3813, 0x04}, {0x3814, 0x31}, {0x3815, 0x31}, }; static const ov5640_reg_val_t ov5640_resolution_1080p_param[] = { {0x3800, 0x01}, {0x3801, 0x50}, {0x3802, 0x01}, {0x3803, 0xb2}, {0x3804, 0x08}, {0x3805, 0xef}, {0x3806, 0x05}, {0x3807, 0xf1}, {0x3808, 0x07}, {0x3809, 0x80}, {0x380A, 0x04}, {0x380B, 0x38}, {0x380C, 0x09}, {0x380D, 0xc4}, {0x380E, 0x04}, {0x380F, 0x60}, {0x3810, 0x00}, {0x3811, 0x10}, {0x3812, 0x00}, {0x3813, 0x04}, {0x3814, 0x11}, {0x3815, 0x11}, }; /* DVP clock */ static const ov5640_clock_config_t ov5640_dvp_clock_configs[] = { { .resolution = (uint32_t)video_resolution_800_480, .pllctrl1 = 0x11, .pllctrl2 = 0x46, .vfifoctrl0c = 0x22, .pclkdiv = 0x02, .pclkperiod = 0x22, }, { .resolution = (uint32_t)video_resolution_vga, .pllctrl1 = 0x11, .pllctrl2 = 0x46, .vfifoctrl0c = 0x22, .pclkdiv = 0x02, .pclkperiod = 0x22, }, { .resolution = (uint32_t)video_resolution_qvga, .pllctrl1 = 0x11, .pllctrl2 = 0x46, .vfifoctrl0c = 0x22, .pclkdiv = 0x02, .pclkperiod = 0x22, }, { .resolution = (uint32_t)video_resolution_480_272, .pllctrl1 = 0x21, .pllctrl2 = 0x69, .vfifoctrl0c = 0x20, .pclkdiv = 0x04, .pclkperiod = 0x16, }, { .resolution = (uint32_t)video_resolution_720p, .pllctrl1 = 0x21, .pllctrl2 = 0x69, .vfifoctrl0c = 0x20, .pclkdiv = 0x04, .pclkperiod = 0x16, }, { .resolution = (uint32_t)video_resolution_1080p, .pllctrl1 = 0x21, .pllctrl2 = 0x69, .vfifoctrl0c = 0x20, .pclkdiv = 0x04, .pclkperiod = 0x16, }, }; static const ov5640_light_mode_config_t ov5640_light_mode_configs[] = { /* Auto. */ { .lightmode = camera_light_mode_auto, .awbctrl = 0x00, .awbr_h = 0x04, .awbr_l = 0x00, .awbg_h = 0x04, .awbg_l = 0x00, .awbb_h = 0x04, .awbb_l = 0x00, }, /* Sunny. */ { .lightmode = camera_light_mode_sunny, .awbctrl = 0x01, .awbr_h = 0x06, .awbr_l = 0x1c, .awbg_h = 0x04, .awbg_l = 0x00, .awbb_h = 0x04, .awbb_l = 0xf3, }, /* Office. */ { .lightmode = camera_light_mode_office, .awbctrl = 0x01, .awbr_h = 0x05, .awbr_l = 0x48, .awbg_h = 0x04, .awbg_l = 0x00, .awbb_h = 0x07, .awbb_l = 0xcf, }, /* Cloudy. */ { .lightmode = camera_light_mode_cloudy, .awbctrl = 0x01, .awbr_h = 0x06, .awbr_l = 0x48, .awbg_h = 0x04, .awbg_l = 0x00, .awbb_h = 0x04, .awbb_l = 0xd3, }, /* Home. */ { .lightmode = camera_light_mode_home, .awbctrl = 0x01, .awbr_h = 0x04, .awbr_l = 0x10, .awbg_h = 0x04, .awbg_l = 0x00, .awbb_h = 0x08, .awbb_l = 0x40, }, }; static const ov5640_special_effect_config_t ov5640_special_effect_configs[] = { /* Normal. */ { .effect = camera_special_effect_normal, .sdectrl0 = 0x06, .sdectrl3 = 0x40, .sdectrl4 = 0x10, }, /* Bluish. */ { .effect = camera_special_effect_bluish, .sdectrl0 = 0x1e, .sdectrl3 = 0xa0, .sdectrl4 = 0x40, }, /* Redish. */ { .effect = camera_special_effect_redish, .sdectrl0 = 0x1e, .sdectrl3 = 0x80, .sdectrl4 = 0xc0, }, /* B & W */ { .effect = camera_special_effect_bw, .sdectrl0 = 0x1e, .sdectrl3 = 0x80, .sdectrl4 = 0x80, }, /* Sepia. */ { .effect = camera_special_effect_sepia, .sdectrl0 = 0x1e, .sdectrl3 = 0x40, .sdectrl4 = 0xa0, }, /* Negtive. */ { .effect = camera_special_effect_negtive, .sdectrl0 = 0x40, .sdectrl3 = 0x40, .sdectrl4 = 0x10, }, /* Greenish. */ { .effect = camera_special_effect_greenish, .sdectrl0 = 0x1e, .sdectrl3 = 0x60, .sdectrl4 = 0x60, }, }; static const ov5640_clock_config_t *ov5640_get_clock_config(const camera_config_t *config) { uint32_t i; if (camera_interface_dvp == config->interface) { for (i = 0; i < ARRAY_SIZE(ov5640_dvp_clock_configs); i++) { if (HPM_CAMERA_RESOLUTION(config->width, config->height) == ov5640_dvp_clock_configs[i].resolution) { return &ov5640_dvp_clock_configs[i]; } } } return NULL; } hpm_stat_t ov5640_read_register(camera_context_t *context, uint16_t reg, uint8_t *buf) { uint8_t r[2]; r[0] = reg >> 8; r[1] = reg & 0xFF; hpm_stat_t stat = i2c_master_write(context->ptr, context->i2c_device_addr, r, 2); if (stat != status_success) { return stat; } return i2c_master_read(context->ptr, context->i2c_device_addr, buf, 1); } hpm_stat_t ov5640_write_register(camera_context_t *context, uint16_t reg, uint8_t val) { uint8_t r[2]; r[0] = reg >> 8; r[1] = reg & 0xFF; return i2c_master_address_write(context->ptr, context->i2c_device_addr, r, sizeof(r), &val, 1); } hpm_stat_t ov5640_write_multi_registers(camera_context_t *context, const ov5640_reg_val_t regval[], uint32_t len) { uint32_t i; hpm_stat_t stat = status_success; for (i = 0; i < len; i++) { HPM_CHECK_RET(ov5640_write_register(context, regval[i].regaddr, regval[i].regval)); } return stat; } hpm_stat_t ov5640_software_reset(camera_context_t *context) { hpm_stat_t stat = status_success; HPM_CHECK_RET(ov5640_write_register(context, 0x3103, 0x11)); HPM_CHECK_RET(ov5640_write_register(context, 0x3008, 0x82)); return stat; } hpm_stat_t ov5640_set_pixel_format(camera_context_t *context, display_pixel_format_t pixel_format) { hpm_stat_t stat = status_success; switch (pixel_format) { case display_pixel_format_y8: case display_pixel_format_yuv422: HPM_CHECK_RET(ov5640_write_register(context, 0x4300, 0x30)); HPM_CHECK_RET(ov5640_write_register(context, 0x501f, 0x00)); break; case display_pixel_format_rgb565: HPM_CHECK_RET(ov5640_write_register(context, 0x4300, 0x6F)); HPM_CHECK_RET(ov5640_write_register(context, 0x501f, 0x01)); break; default: stat = status_invalid_argument; break; } return stat; } hpm_stat_t ov5640_check_chip_id(camera_context_t *context) { hpm_stat_t stat = status_success; uint8_t val_h = 0; uint8_t val_l = 0; HPM_CHECK_RET(ov5640_read_register(context, OV5640_CHIP_ID_HIGH_BYTE_ADDR, &val_h)); HPM_CHECK_RET(ov5640_read_register(context, OV5640_CHIP_ID_LOW_BYTE_ADDR, &val_l)); if (val_h != OV5640_CHIP_ID_HIGH_BYTE_VALUE) { return status_fail; } if (val_l != OV5640_CHIP_ID_LOW_BYTE_VALUE) { return status_fail; } return stat; } hpm_stat_t ov5640_set_image_size(camera_context_t *context, camera_config_t *ov_config) { hpm_stat_t stat = status_success; switch (HPM_CAMERA_RESOLUTION(ov_config->width, ov_config->height)) { case video_resolution_800_480: stat = ov5640_write_multi_registers(context, ov5640_resolution_800_480_param, ARRAY_SIZE(ov5640_resolution_800_480_param)); break; case video_resolution_vga: stat = ov5640_write_multi_registers(context, ov5640_resolution_vga_param, ARRAY_SIZE(ov5640_resolution_vga_param)); break; case video_resolution_qvga: stat = ov5640_write_multi_registers(context, ov5640_resolution_qvga_param, ARRAY_SIZE(ov5640_resolution_qvga_param)); break; case video_resolution_480_272: stat = ov5640_write_multi_registers(context, ov5640_resolution_480_272_param, ARRAY_SIZE(ov5640_resolution_480_272_param)); break; case video_resolution_720p: stat = ov5640_write_multi_registers(context, ov5640_resolution_720p_param, ARRAY_SIZE(ov5640_resolution_720p_param)); break; case video_resolution_1080p: stat = ov5640_write_multi_registers(context, ov5640_resolution_1080p_param, ARRAY_SIZE(ov5640_resolution_1080p_param)); break; default: stat = status_invalid_argument; break; } return stat; } hpm_stat_t ov5640_set_clock_config(camera_context_t *context, camera_config_t *ov_config) { hpm_stat_t stat = status_success; const ov5640_clock_config_t *clock_config = ov5640_get_clock_config(ov_config); if (NULL == clock_config) { return status_invalid_argument; } HPM_CHECK_RET(ov5640_write_register(context, 0x3035, clock_config->pllctrl1)); HPM_CHECK_RET(ov5640_write_register(context, 0x3036, clock_config->pllctrl2)); HPM_CHECK_RET(ov5640_write_register(context, 0x460c, clock_config->vfifoctrl0c)); HPM_CHECK_RET(ov5640_write_register(context, 0x3824, clock_config->pclkdiv)); HPM_CHECK_RET(ov5640_write_register(context, 0x4837, clock_config->pclkperiod)); return stat; } hpm_stat_t ov5640_set_interface(camera_context_t *context, camera_config_t *ov_config) { hpm_stat_t stat = status_success; if (camera_interface_dvp == ov_config->interface) { HPM_CHECK_RET(ov5640_write_register(context, 0x3034, 0x1a)); /* Set Frex, Vsync, Href, PCLK, data, GPIO to output. */ HPM_CHECK_RET(ov5640_write_register(context, 0x3017, 0xFF)); HPM_CHECK_RET(ov5640_write_register(context, 0x3018, 0xFF)); /* DVP mode */ HPM_CHECK_RET(ov5640_write_register(context, 0x300e, 0x58)); } return stat; } hpm_stat_t ov5640_start(camera_context_t *context) { return ov5640_write_register(context, 0x3008, 0x02); } hpm_stat_t ov5640_stop(camera_context_t *context) { return ov5640_write_register(context, 0x3008, 0x42); } hpm_stat_t ov5640_flip(camera_context_t *context) { hpm_stat_t stat = status_success; HPM_CHECK_RET(ov5640_write_register(context, 0x3821, 1)); return stat; } hpm_stat_t ov5640_set_brightness(camera_context_t *context, int32_t brightness) { hpm_stat_t stat = status_success; if ((brightness < -4) || (brightness > 4)) { return status_invalid_argument; } HPM_CHECK_RET(ov5640_write_register(context, 0x3212, 0x03)); if (brightness >= 0) { HPM_CHECK_RET(ov5640_write_register(context, 0x5588, 0x01)); } else { brightness = -brightness; HPM_CHECK_RET(ov5640_write_register(context, 0x5588, 0x09)); } HPM_CHECK_RET(ov5640_write_register(context, 0x5587, ((uint8_t)brightness) << 4U)); HPM_CHECK_RET(ov5640_write_register(context, 0x3212, 0x13)); HPM_CHECK_RET(ov5640_write_register(context, 0x3212, 0xa3)); return stat; } hpm_stat_t ov5640_set_contrast(camera_context_t *context, int32_t contrast) { hpm_stat_t stat = status_success; uint8_t regval; if ((-4 > contrast) || (4 < contrast)) { return status_invalid_argument; } contrast = 0x20 + contrast * 0x04; regval = (uint8_t)contrast; HPM_CHECK_RET(ov5640_write_register(context, 0x3212, 0x03)); HPM_CHECK_RET(ov5640_write_register(context, 0x5580, 0x04)); HPM_CHECK_RET(ov5640_write_register(context, 0x5585, regval)); HPM_CHECK_RET(ov5640_write_register(context, 0x5586, regval)); HPM_CHECK_RET(ov5640_write_register(context, 0x3212, 0x13)); HPM_CHECK_RET(ov5640_write_register(context, 0x3212, 0xa3)); return stat; } hpm_stat_t ov5640_set_saturation(camera_context_t *context, int32_t saturation) { hpm_stat_t stat = status_success; uint8_t regval; if ((-4 > saturation) || (4 < saturation)) { return status_invalid_argument; } saturation = 0x40 + saturation * 0x10; regval = (uint8_t)saturation; HPM_CHECK_RET(ov5640_write_register(context, 0x3212, 0x03)); HPM_CHECK_RET(ov5640_write_register(context, 0x5580, 0x02)); HPM_CHECK_RET(ov5640_write_register(context, 0x5583, regval)); HPM_CHECK_RET(ov5640_write_register(context, 0x5584, regval)); HPM_CHECK_RET(ov5640_write_register(context, 0x5588, 0x41)); HPM_CHECK_RET(ov5640_write_register(context, 0x3212, 0x13)); HPM_CHECK_RET(ov5640_write_register(context, 0x3212, 0xa3)); return stat; } hpm_stat_t ov5640_set_light_mode(camera_context_t *context, int32_t lightmode) { hpm_stat_t stat = status_success; uint8_t i; for (i = 0; i < ARRAY_SIZE(ov5640_light_mode_configs); i++) { if (lightmode == (int32_t)ov5640_light_mode_configs[i].lightmode) { HPM_CHECK_RET(ov5640_write_register(context, 0x3212, 0x03)); HPM_CHECK_RET(ov5640_write_register(context, 0x3406, ov5640_light_mode_configs[i].awbctrl)); HPM_CHECK_RET(ov5640_write_register(context, 0x3400, ov5640_light_mode_configs[i].awbr_h)); HPM_CHECK_RET(ov5640_write_register(context, 0x3401, ov5640_light_mode_configs[i].awbr_l)); HPM_CHECK_RET(ov5640_write_register(context, 0x3402, ov5640_light_mode_configs[i].awbg_h)); HPM_CHECK_RET(ov5640_write_register(context, 0x3403, ov5640_light_mode_configs[i].awbg_l)); HPM_CHECK_RET(ov5640_write_register(context, 0x3404, ov5640_light_mode_configs[i].awbb_h)); HPM_CHECK_RET(ov5640_write_register(context, 0x3405, ov5640_light_mode_configs[i].awbb_l)); HPM_CHECK_RET(ov5640_write_register(context, 0x3212, 0x13)); HPM_CHECK_RET(ov5640_write_register(context, 0x3212, 0xa3)); return stat; } } /* No configuration found. */ return status_invalid_argument; } hpm_stat_t ov5640_set_special_effect(camera_context_t *context, int32_t effect) { hpm_stat_t stat = status_success; uint8_t i; for (i = 0; i < ARRAY_SIZE(ov5640_special_effect_configs); i++) { if (effect == (int32_t)ov5640_special_effect_configs[i].effect) { HPM_CHECK_RET(ov5640_write_register(context, 0x3212, 0x03)); HPM_CHECK_RET(ov5640_write_register(context, 0x5580, ov5640_special_effect_configs[i].sdectrl0)); HPM_CHECK_RET(ov5640_write_register(context, 0x5583, ov5640_special_effect_configs[i].sdectrl3)); HPM_CHECK_RET(ov5640_write_register(context, 0x5584, ov5640_special_effect_configs[i].sdectrl4)); HPM_CHECK_RET(ov5640_write_register(context, 0x5003, 0x08)); HPM_CHECK_RET(ov5640_write_register(context, 0x3212, 0x13)); HPM_CHECK_RET(ov5640_write_register(context, 0x3212, 0xa3)); return stat; } } /* No configuration found. */ return status_invalid_argument; } hpm_stat_t ov5640_init(camera_context_t *context, camera_config_t *ov_config) { hpm_stat_t stat = status_success; /* check the chip id */ HPM_CHECK_RET(ov5640_check_chip_id(context)); /* Initialize: load registers value */ HPM_CHECK_RET(ov5640_write_multi_registers(context, ov5640_init_param, ARRAY_SIZE(ov5640_init_param))); /* configure image windowing */ HPM_CHECK_RET(ov5640_set_image_size(context, ov_config)); HPM_CHECK_RET(ov5640_flip(context)); /* configure Pixel format */ HPM_CHECK_RET(ov5640_set_pixel_format(context, ov_config->pixel_format)); /* configure PCLK clock */ HPM_CHECK_RET(ov5640_set_clock_config(context, ov_config)); /* configure interface */ HPM_CHECK_RET(ov5640_set_interface(context, ov_config)); /* configure contrast */ HPM_CHECK_RET(ov5640_set_contrast(context, 2)); /* camera start */ HPM_CHECK_RET(ov5640_write_register(context, 0x3008, 0x02)); return stat; } void ov5640_power_up(camera_context_t *context) { assert((context->delay_ms != NULL) && (context->write_rst != NULL) && (context->write_pwdn != NULL)); context->write_rst(OV5640_RST_ACTIVE); context->write_pwdn(OV5640_PWDN_ACTIVE); context->delay_ms(5); context->write_pwdn(OV5640_PWDN_INACTIVE); context->delay_ms(2); context->write_rst(OV5640_RST_INACTIVE); context->delay_ms(20); }