diff options
Diffstat (limited to 'fw/fe310/eos/i2c/ov2640.c')
| -rw-r--r-- | fw/fe310/eos/i2c/ov2640.c | 861 |
1 files changed, 0 insertions, 861 deletions
diff --git a/fw/fe310/eos/i2c/ov2640.c b/fw/fe310/eos/i2c/ov2640.c deleted file mode 100644 index 6e54f10..0000000 --- a/fw/fe310/eos/i2c/ov2640.c +++ /dev/null @@ -1,861 +0,0 @@ -#include <stdlib.h> -#include <stdint.h> -#include <math.h> - -#include "eos.h" -#include "timer.h" -#include "cam.h" - -#include "i2c.h" -#include "ov2640_regs.h" -#include "ov2640.h" - -#define XCLK_FREQ 24000000 -//#define XCLK_FREQ 12000000 - -#define CIF_WIDTH (400) -#define CIF_HEIGHT (296) - -#define SVGA_WIDTH (800) -#define SVGA_HEIGHT (600) - -#define UXGA_WIDTH (1600) -#define UXGA_HEIGHT (1200) - -static const uint8_t default_regs[][2] = { - -// From Linux Driver. - - {BANK_SEL, BANK_SEL_DSP}, - {0x2c, 0xff}, - {0x2e, 0xdf}, - {BANK_SEL, BANK_SEL_SENSOR}, - {0x3c, 0x32}, -// {CLKRC, CLKRC_DOUBLE | 0x02}, - {CLKRC, 0x01}, - {COM2, COM2_OUT_DRIVE_3x}, - {REG04, REG04_SET(REG04_HFLIP_IMG | REG04_VFLIP_IMG | REG04_VREF_EN | REG04_HREF_EN)}, - {COM8, COM8_SET(COM8_BNDF_EN | COM8_AGC_EN | COM8_AEC_EN)}, - {COM9, COM9_AGC_SET(COM9_AGC_GAIN_8x)}, - {0x2c, 0x0c}, - {0x33, 0x78}, - {0x3a, 0x33}, - {0x3b, 0xfb}, - {0x3e, 0x00}, - {0x43, 0x11}, - {0x16, 0x10}, - {0x39, 0x02}, - {0x35, 0x88}, - {0x22, 0x0a}, - {0x37, 0x40}, - {0x23, 0x00}, - {ARCOM2, 0xa0}, - {0x06, 0x02}, - {0x06, 0x88}, - {0x07, 0xc0}, - {0x0d, 0xb7}, - {0x0e, 0x01}, - {0x4c, 0x00}, - {0x4a, 0x81}, - {0x21, 0x99}, - {AEW, 0x40}, - {AEB, 0x38}, - {VV, VV_AGC_TH_SET(0x08, 0x02)}, - {0x5c, 0x00}, - {0x63, 0x00}, - {FLL, 0x22}, - {COM3, COM3_BAND_SET(COM3_BAND_AUTO)}, - {REG5D, 0x55}, - {REG5E, 0x7d}, - {REG5F, 0x7d}, - {REG60, 0x55}, - {HISTO_LOW, 0x70}, - {HISTO_HIGH, 0x80}, - {0x7c, 0x05}, - {0x20, 0x80}, - {0x28, 0x30}, - {0x6c, 0x00}, - {0x6d, 0x80}, - {0x6e, 0x00}, - {0x70, 0x02}, - {0x71, 0x94}, - {0x73, 0xc1}, - {0x3d, 0x34}, - {COM7, COM7_RES_UXGA | COM7_ZOOM_EN}, - {0x5a, 0x57}, - {COM25, 0x00}, - {BD50, 0xbb}, - {BD60, 0x9c}, - {BANK_SEL, BANK_SEL_DSP}, - {0xe5, 0x7f}, - {MC_BIST, MC_BIST_RESET | MC_BIST_BOOT_ROM_SEL}, - {0x41, 0x24}, - {RESET, RESET_JPEG | RESET_DVP}, - {0x76, 0xff}, - {0x33, 0xa0}, - {0x42, 0x20}, - {0x43, 0x18}, - {0x4c, 0x00}, - {CTRL3, CTRL3_BPC_EN | CTRL3_WPC_EN | 0x10}, - {0x88, 0x3f}, - {0xd7, 0x03}, - {0xd9, 0x10}, - {R_DVP_SP, R_DVP_SP_AUTO_MODE | 0x2}, - {0xc8, 0x08}, - {0xc9, 0x80}, - {BPADDR, 0x00}, - {BPDATA, 0x00}, - {BPADDR, 0x03}, - {BPDATA, 0x48}, - {BPDATA, 0x48}, - {BPADDR, 0x08}, - {BPDATA, 0x20}, - {BPDATA, 0x10}, - {BPDATA, 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}, /* simple AWB */ - {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}, - {CTRL0, CTRL0_YUV422 | CTRL0_YUV_EN | CTRL0_RGB_EN}, - -// OpenMV Custom. - - {BANK_SEL, BANK_SEL_SENSOR}, - {0x0f, 0x4b}, - {COM1, 0x8f}, - -// End. - - {0xff, 0xff}, -}; - -// Looks really bad. -//static const uint8_t cif_regs[][2] = { -// {BANK_SEL, BANK_SEL_SENSOR}, -// {COM7, COM7_RES_CIF}, -// {COM1, 0x06 | 0x80}, -// {HSTART, 0x11}, -// {HSTOP, 0x43}, -// {VSTART, 0x01}, // 0x01 fixes issue with garbage pixels in the image... -// {VSTOP, 0x97}, -// {REG32, 0x09}, -// {BANK_SEL, BANK_SEL_DSP}, -// {RESET, RESET_DVP}, -// {SIZEL, SIZEL_HSIZE8_11_SET(CIF_WIDTH) | SIZEL_HSIZE8_SET(CIF_WIDTH) | SIZEL_VSIZE8_SET(CIF_HEIGHT)}, -// {HSIZE8, HSIZE8_SET(CIF_WIDTH)}, -// {VSIZE8, VSIZE8_SET(CIF_HEIGHT)}, -// {CTRL2, CTRL2_DCW_EN | CTRL2_SDE_EN | CTRL2_UV_AVG_EN | CTRL2_CMX_EN | CTRL2_UV_ADJ_EN}, -// {0, 0}, -//}; - -static const uint8_t svga_regs[][2] = { - {BANK_SEL, BANK_SEL_SENSOR}, - {COM7, COM7_RES_SVGA}, - {COM1, 0x0A | 0x80}, - {HSTART, 0x11}, - {HSTOP, 0x43}, - {VSTART, 0x01}, // 0x01 fixes issue with garbage pixels in the image... - {VSTOP, 0x97}, - {REG32, 0x09}, - {BANK_SEL, BANK_SEL_DSP}, - {RESET, RESET_DVP}, - {SIZEL, SIZEL_HSIZE8_11_SET(SVGA_WIDTH) | SIZEL_HSIZE8_SET(SVGA_WIDTH) | SIZEL_VSIZE8_SET(SVGA_HEIGHT)}, - {HSIZE8, HSIZE8_SET(SVGA_WIDTH)}, - {VSIZE8, VSIZE8_SET(SVGA_HEIGHT)}, - {CTRL2, CTRL2_DCW_EN | CTRL2_SDE_EN | CTRL2_UV_AVG_EN | CTRL2_CMX_EN | CTRL2_UV_ADJ_EN}, - {0xff, 0xff}, -}; - -static const uint8_t uxga_regs[][2] = { - {BANK_SEL, BANK_SEL_SENSOR}, - {COM7, COM7_RES_UXGA}, - {COM1, 0x0F | 0x80}, - {HSTART, 0x11}, - {HSTOP, 0x75}, - {VSTART, 0x01}, - {VSTOP, 0x97}, - {REG32, 0x36}, - {BANK_SEL, BANK_SEL_DSP}, - {RESET, RESET_DVP}, - {SIZEL, SIZEL_HSIZE8_11_SET(UXGA_WIDTH) | SIZEL_HSIZE8_SET(UXGA_WIDTH) | SIZEL_VSIZE8_SET(UXGA_HEIGHT)}, - {HSIZE8, HSIZE8_SET(UXGA_WIDTH)}, - {VSIZE8, VSIZE8_SET(UXGA_HEIGHT)}, - {CTRL2, CTRL2_DCW_EN | CTRL2_SDE_EN | CTRL2_UV_AVG_EN | CTRL2_CMX_EN | CTRL2_UV_ADJ_EN}, - {0xff, 0xff}, -}; - -static const uint8_t yuv422_regs[][2] = { - {BANK_SEL, BANK_SEL_DSP}, - {R_BYPASS, R_BYPASS_DSP_EN}, - {IMAGE_MODE, IMAGE_MODE_YUV422}, - {0xd7, 0x03}, - {0x33, 0xa0}, - {0xe5, 0x1f}, - {0xe1, 0x67}, - {RESET, 0x00}, - {R_BYPASS, R_BYPASS_DSP_EN}, - {0xff, 0xff}, -}; - -static const uint8_t rgb565_regs[][2] = { - {BANK_SEL, BANK_SEL_DSP}, - {R_BYPASS, R_BYPASS_DSP_EN}, - {IMAGE_MODE, IMAGE_MODE_RGB565}, - {0xd7, 0x03}, - {RESET, 0x00}, - {R_BYPASS, R_BYPASS_DSP_EN}, - {0xff, 0xff}, -}; - -static const uint8_t bayer_regs[][2] = { - {BANK_SEL, BANK_SEL_DSP}, - {R_BYPASS, R_BYPASS_DSP_EN}, - {IMAGE_MODE, IMAGE_MODE_RAW10}, - {0xd7, 0x03}, - {RESET, 0x00}, - {R_BYPASS, R_BYPASS_DSP_EN}, - {0xff, 0xff}, -}; - -static const uint8_t jpeg_regs[][2] = { - {BANK_SEL, BANK_SEL_DSP}, - {R_BYPASS, R_BYPASS_DSP_EN}, - {IMAGE_MODE, IMAGE_MODE_JPEG_EN}, - {0xd7, 0x03}, - {RESET, 0x00}, - {R_BYPASS, R_BYPASS_DSP_EN}, - {0xff, 0xff}, -}; - -#define NUM_BRIGHTNESS_LEVELS (5) -static const uint8_t brightness_regs[NUM_BRIGHTNESS_LEVELS + 1][5] = { - {BPADDR, BPDATA, BPADDR, BPDATA, BPDATA}, - {0x00, 0x04, 0x09, 0x00, 0x00}, /* -2 */ - {0x00, 0x04, 0x09, 0x10, 0x00}, /* -1 */ - {0x00, 0x04, 0x09, 0x20, 0x00}, /* 0 */ - {0x00, 0x04, 0x09, 0x30, 0x00}, /* +1 */ - {0x00, 0x04, 0x09, 0x40, 0x00}, /* +2 */ -}; - -#define NUM_CONTRAST_LEVELS (5) -static const uint8_t contrast_regs[NUM_CONTRAST_LEVELS + 1][7] = { - {BPADDR, BPDATA, BPADDR, BPDATA, BPDATA, BPDATA, BPDATA}, - {0x00, 0x04, 0x07, 0x20, 0x18, 0x34, 0x06}, /* -2 */ - {0x00, 0x04, 0x07, 0x20, 0x1c, 0x2a, 0x06}, /* -1 */ - {0x00, 0x04, 0x07, 0x20, 0x20, 0x20, 0x06}, /* 0 */ - {0x00, 0x04, 0x07, 0x20, 0x24, 0x16, 0x06}, /* +1 */ - {0x00, 0x04, 0x07, 0x20, 0x28, 0x0c, 0x06}, /* +2 */ -}; - -#define NUM_SATURATION_LEVELS (5) -static const uint8_t saturation_regs[NUM_SATURATION_LEVELS + 1][5] = { - {BPADDR, BPDATA, BPADDR, BPDATA, BPDATA}, - {0x00, 0x02, 0x03, 0x28, 0x28}, /* -2 */ - {0x00, 0x02, 0x03, 0x38, 0x38}, /* -1 */ - {0x00, 0x02, 0x03, 0x48, 0x48}, /* 0 */ - {0x00, 0x02, 0x03, 0x58, 0x58}, /* +1 */ - {0x00, 0x02, 0x03, 0x68, 0x68}, /* +2 */ -}; - -static int reg_read(int8_t reg, uint8_t *data) { - return eos_i2c_read8(OV2640_ADDR, reg, data, 1); -} - -static int reg_write(uint8_t reg, uint8_t data) { - return eos_i2c_write8(OV2640_ADDR, reg, &data, 1); -} - -static int regarr_write(const uint8_t (*regs)[2]) { - int i, rv; - - i = 0; - rv = EOS_OK; - - while ((regs[i][0] != 0xff) || (regs[i][1] != 0xff)) { - if (!rv) rv = reg_write(regs[i][0], regs[i][1]); - i++; - } - - return rv; -} - -int eos_ov2640_init(void) { - int rv; - - // Reset all registers - rv = reg_write(BANK_SEL, BANK_SEL_SENSOR); - if (rv) return rv; - - rv = reg_write(COM7, COM7_SRST); - if (rv) return rv; - - // Delay 5 ms - eos_time_sleep(5); - - // Write default regsiters - rv = regarr_write(default_regs); - if (rv) return rv; - - // Delay 300 ms - eos_time_sleep(300); - - return EOS_OK; -} - -int eos_ov2640_sleep(int enable) { - uint8_t reg; - int rv; - - rv = reg_write(BANK_SEL, BANK_SEL_SENSOR); - if (rv) return rv; - - rv = reg_read(COM2, ®); - if (rv) return rv; - - if (enable) { - reg |= COM2_STDBY; - } else { - reg &= ~COM2_STDBY; - } - - // Write back register - return reg_write(COM2, reg); -} - -int eos_ov2640_set_pixfmt(pixformat_t fmt) { - const uint8_t (*regs)[2]; - - switch (fmt) { - case PIXFORMAT_RGB565: - regs = rgb565_regs; - break; - case PIXFORMAT_YUV422: - case PIXFORMAT_GRAYSCALE: - regs = yuv422_regs; - break; - case PIXFORMAT_BAYER: - regs = bayer_regs; - break; - case PIXFORMAT_JPEG: - regs = jpeg_regs; - break; - default: - return EOS_ERR; - } - - return regarr_write(regs); -} - -int eos_ov2640_set_framesize(framesize_t framesize) { - const uint8_t (*regs)[2]; - uint16_t sensor_w = 0; - uint16_t sensor_h = 0; - uint16_t w = _eos_cam_resolution[framesize][0]; - uint16_t h = _eos_cam_resolution[framesize][1]; - int rv; - - if ((w % 4) || (h % 4) || (w > UXGA_WIDTH) || (h > UXGA_HEIGHT)) { // w/h must be divisble by 4 - return EOS_ERR; - } - - // Looks really bad. - /* if ((w <= CIF_WIDTH) && (h <= CIF_HEIGHT)) { - regs = cif_regs; - sensor_w = CIF_WIDTH; - sensor_h = CIF_HEIGHT; - } else */ if ((w <= SVGA_WIDTH) && (h <= SVGA_HEIGHT)) { - regs = svga_regs; - sensor_w = SVGA_WIDTH; - sensor_h = SVGA_HEIGHT; - } else { - regs = uxga_regs; - sensor_w = UXGA_WIDTH; - sensor_h = UXGA_HEIGHT; - } - - // Write setup regsiters - rv = regarr_write(regs); - if (rv) return rv; - - uint64_t tmp_div = IM_MIN(sensor_w / w, sensor_h / h); - uint16_t log_div = IM_MIN(IM_LOG2(tmp_div) - 1, 3); - uint16_t div = 1 << log_div; - uint16_t w_mul = w * div; - uint16_t h_mul = h * div; - uint16_t x_off = (sensor_w - w_mul) / 2; - uint16_t y_off = (sensor_h - h_mul) / 2; - - rv = EOS_OK; - if (!rv) rv = reg_write(CTRLI, CTRLI_LP_DP | CTRLI_V_DIV_SET(log_div) | CTRLI_H_DIV_SET(log_div)); - if (!rv) rv = reg_write(HSIZE, HSIZE_SET(w_mul)); - if (!rv) rv = reg_write(VSIZE, VSIZE_SET(h_mul)); - if (!rv) rv = reg_write(XOFFL, XOFFL_SET(x_off)); - if (!rv) rv = reg_write(YOFFL, YOFFL_SET(y_off)); - if (!rv) rv = reg_write(VHYX, VHYX_HSIZE_SET(w_mul) | VHYX_VSIZE_SET(h_mul) | VHYX_XOFF_SET(x_off) | VHYX_YOFF_SET(y_off)); - if (!rv) rv = reg_write(TEST, TEST_HSIZE_SET(w_mul)); - if (!rv) rv = reg_write(ZMOW, ZMOW_OUTW_SET(w)); - if (!rv) rv = reg_write(ZMOH, ZMOH_OUTH_SET(h)); - if (!rv) rv = reg_write(ZMHH, ZMHH_OUTW_SET(w) | ZMHH_OUTH_SET(h)); - if (!rv) rv = reg_write(R_DVP_SP, div); - if (!rv) rv = reg_write(RESET, 0x00); - - return rv; -} - -int eos_ov2640_set_contrast(int level) { - int rv = EOS_OK; - - level += (NUM_CONTRAST_LEVELS / 2) + 1; - if (level <= 0 || level > NUM_CONTRAST_LEVELS) { - return EOS_ERR; - } - - /* Switch to DSP register bank */ - rv = reg_write(BANK_SEL, BANK_SEL_DSP); - - /* Write contrast registers */ - for (int i=0; i<sizeof(contrast_regs[0])/sizeof(contrast_regs[0][0]); i++) { - if (!rv) rv = reg_write(contrast_regs[0][i], contrast_regs[level][i]); - } - - return rv; -} - -int eos_ov2640_set_brightness(int level) { - int rv = EOS_OK; - - level += (NUM_BRIGHTNESS_LEVELS / 2) + 1; - if (level <= 0 || level > NUM_BRIGHTNESS_LEVELS) { - return EOS_ERR; - } - - /* Switch to DSP register bank */ - rv = reg_write(BANK_SEL, BANK_SEL_DSP); - - /* Write brightness registers */ - for (int i=0; i<sizeof(brightness_regs[0])/sizeof(brightness_regs[0][0]); i++) { - if (!rv) rv = reg_write(brightness_regs[0][i], brightness_regs[level][i]); - } - - return rv; -} - -int eos_ov2640_set_saturation(int level) { - int rv = EOS_OK; - - level += (NUM_SATURATION_LEVELS / 2) + 1; - if (level <= 0 || level > NUM_SATURATION_LEVELS) { - return EOS_ERR; - } - - /* Switch to DSP register bank */ - rv = reg_write(BANK_SEL, BANK_SEL_DSP); - - /* Write saturation registers */ - for (int i=0; i<sizeof(saturation_regs[0])/sizeof(saturation_regs[0][0]); i++) { - if (!rv) rv = reg_write(saturation_regs[0][i], saturation_regs[level][i]); - } - - return rv; -} - -int eos_ov2640_set_gainceiling(gainceiling_t gainceiling) { - int rv = EOS_OK; - - /* Switch to SENSOR register bank */ - rv = reg_write(BANK_SEL, BANK_SEL_SENSOR); - - /* Write gain ceiling register */ - if (!rv) rv = reg_write(COM9, COM9_AGC_SET(gainceiling)); - - return rv; -} - -int eos_ov2640_set_quality(int qs) { - int rv = EOS_OK; - - /* Switch to DSP register bank */ - rv = reg_write(BANK_SEL, BANK_SEL_DSP); - - /* Write QS register */ - if (!rv) rv = reg_write(QS, qs); - - return rv; -} - -int eos_ov2640_set_colorbar(int enable) { - int rv = EOS_OK; - uint8_t reg; - - rv = reg_write(BANK_SEL, BANK_SEL_SENSOR); - if (rv) return rv; - - rv = reg_read(COM7, ®); - if (rv) return rv; - - if (enable) { - reg |= COM7_COLOR_BAR; - } else { - reg &= ~COM7_COLOR_BAR; - } - - return reg_write(COM7, reg); -} - -int eos_ov2640_set_auto_gain(int enable, float gain_db, float gain_db_ceiling) { - int rv = EOS_OK; - uint8_t reg; - - rv = reg_write(BANK_SEL, BANK_SEL_SENSOR); - if (rv) return rv; - - rv = reg_read(COM8, ®); - if (rv) return rv; - - rv = reg_write(COM8, (reg & (~COM8_AGC_EN)) | (enable ? COM8_AGC_EN : 0)); - if (rv) return rv; - - rv = EOS_OK; - if (enable && (!isnanf(gain_db_ceiling)) && (!isinff(gain_db_ceiling))) { - float gain_ceiling = IM_MAX(IM_MIN(expf((gain_db_ceiling / 20.0) * logf(10.0)), 128.0), 2.0); - - if (!rv) rv = reg_read(COM9, ®); - if (!rv) rv = reg_write(COM9, (reg & 0x1F) | (((int)ceilf(log2f(gain_ceiling)) - 1) << 5)); - } - - if (!enable && (!isnanf(gain_db)) && (!isinff(gain_db))) { - float gain = IM_MAX(IM_MIN(expf((gain_db / 20.0) * logf(10.0)), 32.0), 1.0); - - int gain_temp = roundf(log2f(IM_MAX(gain / 2.0, 1.0))); - int gain_hi = 0xF >> (4 - gain_temp); - int gain_lo = IM_MIN(roundf(((gain / (1 << gain_temp)) - 1.0) * 16.0), 15); - - if (!rv) rv = reg_write(GAIN, (gain_hi << 4) | (gain_lo << 0)); - } - - return rv; -} - -int eos_ov2640_get_gain_db(float *gain_db) { - int rv = EOS_OK; - uint8_t reg, gain; - - rv = reg_write(BANK_SEL, BANK_SEL_SENSOR); - if (rv) return rv; - - rv = reg_read(COM8, ®); - if (rv) return rv; - - // DISABLED - // if (reg & COM8_AGC_EN) { - // rv = reg_write(COM8, reg & (~COM8_AGC_EN)); - // if (rv) return rv; - // } - // DISABLED - - rv = reg_read(GAIN, &gain); - if (rv) return rv; - - // DISABLED - // if (reg & COM8_AGC_EN) { - // rv = reg_write(COM8, reg | COM8_AGC_EN); - // if (rv) return rv; - // } - // DISABLED - - int hi_gain = 1 << (((gain >> 7) & 1) + ((gain >> 6) & 1) + ((gain >> 5) & 1) + ((gain >> 4) & 1)); - float lo_gain = 1.0 + (((gain >> 0) & 0xF) / 16.0); - *gain_db = 20.0 * (logf(hi_gain * lo_gain) / logf(10.0)); - - return EOS_OK; -} - -int eos_ov2640_set_auto_exposure(int enable, int exposure_us) { - int rv = EOS_OK; - uint8_t reg; - - rv = reg_write(BANK_SEL, BANK_SEL_SENSOR); - if (rv) return rv; - - rv = reg_read(COM8, ®); - if (rv) return rv; - - rv = reg_write(COM8, COM8_SET_AEC(reg, (enable != 0))); - if (rv) return rv; - - if (!enable && (exposure_us >= 0)) { - rv = reg_read(COM7, ®); - if (rv) return rv; - - int t_line = 0; - - if (COM7_GET_RES(reg) == COM7_RES_UXGA) t_line = 1600 + 322; - if (COM7_GET_RES(reg) == COM7_RES_SVGA) t_line = 800 + 390; - if (COM7_GET_RES(reg) == COM7_RES_CIF) t_line = 400 + 195; - - rv = reg_read(CLKRC, ®); - if (rv) return rv; - - int pll_mult = ((reg & CLKRC_DOUBLE) ? 2 : 1) * 3; - int clk_rc = (reg & CLKRC_DIVIDER_MASK) + 2; - - rv = reg_write(BANK_SEL, BANK_SEL_DSP); - if (rv) return rv; - - rv = reg_read(IMAGE_MODE, ®); - if (rv) return rv; - - int t_pclk = 0; - - if (IMAGE_MODE_GET_FMT(reg) == IMAGE_MODE_YUV422) t_pclk = 2; - if (IMAGE_MODE_GET_FMT(reg) == IMAGE_MODE_RAW10) t_pclk = 1; - if (IMAGE_MODE_GET_FMT(reg) == IMAGE_MODE_RGB565) t_pclk = 2; - - int exposure = IM_MAX(IM_MIN(((exposure_us*(((XCLK_FREQ/clk_rc)*pll_mult)/1000000))/t_pclk)/t_line,0xFFFF),0x0000); - - if (!rv) rv = reg_write(BANK_SEL, BANK_SEL_SENSOR); - - if (!rv) rv = reg_read(REG04, ®); - if (!rv) rv = reg_write(REG04, (reg & 0xFC) | ((exposure >> 0) & 0x3)); - - if (!rv) rv = reg_read(AEC, ®); - if (!rv) rv = reg_write(AEC, (reg & 0x00) | ((exposure >> 2) & 0xFF)); - - if (!rv) rv = reg_read(REG45, ®); - if (!rv) rv = reg_write(REG45, (reg & 0xC0) | ((exposure >> 10) & 0x3F)); - } - - return rv; -} - -int eos_ov2640_get_exposure_us(int *exposure_us) { - int rv = EOS_OK; - uint8_t reg, aec_10, aec_92, aec_1510; - - rv = reg_write(BANK_SEL, BANK_SEL_SENSOR); - if (rv) return rv; - - rv = reg_read(COM8, ®); - if (rv) return rv; - - // DISABLED - // if (reg & COM8_AEC_EN) { - // rv = reg_write(COM8, reg & (~COM8_AEC_EN)); - // if (rv) return rv; - // } - // DISABLED - - rv = reg_read(REG04, &aec_10); - if (rv) return rv; - - rv = reg_read(AEC, &aec_92); - if (rv) return rv; - - rv = reg_read(REG45, &aec_1510); - if (rv) return rv; - - // DISABLED - // if (reg & COM8_AEC_EN) { - // rv = reg_write(COM8, reg | COM8_AEC_EN); - // if (rv) return rv; - // } - // DISABLED - - rv = reg_read(COM7, ®); - if (rv) return rv; - - int t_line = 0; - - if (COM7_GET_RES(reg) == COM7_RES_UXGA) t_line = 1600 + 322; - if (COM7_GET_RES(reg) == COM7_RES_SVGA) t_line = 800 + 390; - if (COM7_GET_RES(reg) == COM7_RES_CIF) t_line = 400 + 195; - - rv = reg_read(CLKRC, ®); - if (rv) return rv; - - int pll_mult = ((reg & CLKRC_DOUBLE) ? 2 : 1) * 3; - int clk_rc = (reg & CLKRC_DIVIDER_MASK) + 2; - - rv = reg_write(BANK_SEL, BANK_SEL_DSP); - if (rv) return rv; - - rv = reg_read(IMAGE_MODE, ®); - if (rv) return rv; - - int t_pclk = 0; - - if (IMAGE_MODE_GET_FMT(reg) == IMAGE_MODE_YUV422) t_pclk = 2; - if (IMAGE_MODE_GET_FMT(reg) == IMAGE_MODE_RAW10) t_pclk = 1; - if (IMAGE_MODE_GET_FMT(reg) == IMAGE_MODE_RGB565) t_pclk = 2; - - uint16_t exposure = ((aec_1510 & 0x3F) << 10) + ((aec_92 & 0xFF) << 2) + ((aec_10 & 0x3) << 0); - *exposure_us = (exposure*t_line*t_pclk)/(((XCLK_FREQ/clk_rc)*pll_mult)/1000000); - - return EOS_OK; -} - -int eos_ov2640_set_auto_whitebal(int enable, float r_gain_db, float g_gain_db, float b_gain_db) { - int rv = EOS_OK; - uint8_t reg; - - rv = reg_write(BANK_SEL, BANK_SEL_DSP); - if (rv) return rv; - - rv = reg_read(CTRL1, ®); - if (rv) return rv; - - rv = reg_write(CTRL1, (reg & (~CTRL1_AWB)) | (enable ? CTRL1_AWB : 0)); - if (rv) return rv; - - if (!enable && (!isnanf(r_gain_db)) && (!isnanf(g_gain_db)) && (!isnanf(b_gain_db)) - && (!isinff(r_gain_db)) && (!isinff(g_gain_db)) && (!isinff(b_gain_db))) { - } - - return rv; -} - -int eos_ov2640_set_hmirror(int enable) { - int rv = EOS_OK; - uint8_t reg; - - rv = reg_write(BANK_SEL, BANK_SEL_SENSOR); - if (rv) return rv; - - rv = reg_read(REG04, ®); - if (rv) return rv; - - if (!enable) { // Already mirrored. - reg |= REG04_HFLIP_IMG; - } else { - reg &= ~REG04_HFLIP_IMG; - } - - return reg_write(REG04, reg); -} - -int eos_ov2640_set_vflip(int enable) { - int rv = EOS_OK; - uint8_t reg; - - rv = reg_write(BANK_SEL, BANK_SEL_SENSOR); - if (rv) return rv; - - rv = reg_read(REG04, ®); - if (rv) return rv; - - if (!enable) { // Already flipped. - reg |= REG04_VFLIP_IMG | REG04_VREF_EN; - } else { - reg &= ~(REG04_VFLIP_IMG | REG04_VREF_EN); - } - - return reg_write(REG04, reg); -} - -int eos_ov2640_set_effect(sde_t sde) { - int rv = EOS_OK; - - switch (sde) { - case SDE_NEGATIVE: - if (!rv) rv = reg_write(BANK_SEL, BANK_SEL_DSP); - if (!rv) rv = reg_write(BPADDR, 0x00); - if (!rv) rv = reg_write(BPDATA, 0x40); - if (!rv) rv = reg_write(BPADDR, 0x05); - if (!rv) rv = reg_write(BPDATA, 0x80); - if (!rv) rv = reg_write(BPDATA, 0x80); - break; - case SDE_NORMAL: - if (!rv) rv = reg_write(BANK_SEL, BANK_SEL_DSP); - if (!rv) rv = reg_write(BPADDR, 0x00); - if (!rv) rv = reg_write(BPDATA, 0x00); - if (!rv) rv = reg_write(BPADDR, 0x05); - if (!rv) rv = reg_write(BPDATA, 0x80); - if (!rv) rv = reg_write(BPDATA, 0x80); - break; - default: - return EOS_ERR; - } - - return rv; -} |