openmv/drivers/sensors/hm0360.c
iabdalkader 2958b854ef drivers/sensors: Rename header files.
Old header files are no longer needed.

Signed-off-by: iabdalkader <i.abdalkader@gmail.com>
2025-06-27 20:17:03 +02:00

788 lines
26 KiB
C

/*
* SPDX-License-Identifier: MIT
*
* Copyright (C) 2013-2024 OpenMV, LLC.
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*
* HM0360 driver.
*/
#include "omv_boardconfig.h"
#if (OMV_HM0360_ENABLE == 1)
#include <stdint.h>
#include <stdlib.h>
#include <string.h>
#include "omv_i2c.h"
#include "omv_csi.h"
#include "hm0360.h"
#include "py/mphal.h"
#define HIMAX_BOOT_RETRY (10)
#define HIMAX_LINE_LEN_PCK_VGA 0x300
#define HIMAX_FRAME_LENGTH_VGA 0x214
#define HIMAX_LINE_LEN_PCK_QVGA 0x178
#define HIMAX_FRAME_LENGTH_QVGA 0x109
#define HIMAX_LINE_LEN_PCK_QQVGA 0x178
#define HIMAX_FRAME_LENGTH_QQVGA 0x084
#define HIMAX_MD_ROI_VGA_W 40
#define HIMAX_MD_ROI_VGA_H 30
#define HIMAX_MD_ROI_QVGA_W 20
#define HIMAX_MD_ROI_QVGA_H 15
#define HIMAX_MD_ROI_QQVGA_W 10
#define HIMAX_MD_ROI_QQVGA_H 8
static const uint16_t default_regs[][2] = {
{SW_RESET, 0x00},
{MONO_MODE, 0x00},
{MONO_MODE_ISP, 0x01},
{MONO_MODE_SEL, 0x01},
// BLC control
{0x1000, 0x01},
{0x1003, 0x04},
{BLC_TGT, 0x04},
{0x1007, 0x01},
{0x1008, 0x04},
{BLC2_TGT, 0x04},
{MONO_CTRL, 0x01},
// Output format control
{OPFM_CTRL, 0x0C},
// Reserved regs
{0x101D, 0x00},
{0x101E, 0x01},
{0x101F, 0x00},
{0x1020, 0x01},
{0x1021, 0x00},
{CMPRS_CTRL, 0x00},
{CMPRS_01, 0x09},
{CMPRS_02, 0x12},
{CMPRS_03, 0x23},
{CMPRS_04, 0x31},
{CMPRS_05, 0x3E},
{CMPRS_06, 0x4B},
{CMPRS_07, 0x56},
{CMPRS_08, 0x5E},
{CMPRS_09, 0x65},
{CMPRS_10, 0x72},
{CMPRS_11, 0x7F},
{CMPRS_12, 0x8C},
{CMPRS_13, 0x98},
{CMPRS_14, 0xB2},
{CMPRS_15, 0xCC},
{CMPRS_16, 0xE6},
{0x3112, 0x00}, // PCLKO_polarity falling
{PLL1_CONFIG, OMV_HM0360_PLL1_CONFIG}, // Core = 24MHz PCLKO = 24MHz I2C = 12MHz
{PLL2_CONFIG, 0x0A}, // MIPI pre-dev (default)
{PLL3_CONFIG, 0x77}, // PMU/MIPI pre-dev (default)
{PMU_CFG_3, 0x08}, // Disable context switching
{PAD_REGISTER_07, 0x00}, // PCLKO_polarity falling
{AE_CTRL, 0x5F}, // Automatic Exposure (NOTE: Auto framerate enabled)
{AE_CTRL1, 0x00},
{T_DAMPING, 0x20}, // AE T damping factor
{N_DAMPING, 0x00}, // AE N damping factor
{AE_TARGET_MEAN, 0x64}, // AE target
{AE_MIN_MEAN, 0x0A}, // AE min target mean
{AE_TARGET_ZONE, 0x23}, // AE target zone
{CONVERGE_IN_TH, 0x03}, // AE converge in threshold
{CONVERGE_OUT_TH, 0x05}, // AE converge out threshold
{MAX_INTG_H, (HIMAX_FRAME_LENGTH_QVGA - 4) >> 8},
{MAX_INTG_L, (HIMAX_FRAME_LENGTH_QVGA - 4) & 0xFF},
{MAX_AGAIN, 0x04}, // Maximum analog gain
{MAX_DGAIN_H, 0x03},
{MAX_DGAIN_L, 0x3F},
{INTEGRATION_H, 0x01},
{INTEGRATION_L, 0x08},
{MD_CTRL, 0x6A},
{MD_TH_MIN, 0x01},
{MD_BLOCK_NUM_TH, 0x01},
{MD_CTRL1, 0x06},
{PULSE_MODE, 0x00}, // Interrupt in level mode.
{ROI_START_END_V, 0xF0},
{ROI_START_END_H, 0xF0},
{FRAME_LEN_LINES_H, HIMAX_FRAME_LENGTH_QVGA >> 8},
{FRAME_LEN_LINES_L, HIMAX_FRAME_LENGTH_QVGA & 0xFF},
{LINE_LEN_PCK_H, HIMAX_LINE_LEN_PCK_QVGA >> 8},
{LINE_LEN_PCK_L, HIMAX_LINE_LEN_PCK_QVGA & 0xFF},
{H_SUBSAMPLE, 0x01},
{V_SUBSAMPLE, 0x01},
{BINNING_MODE, 0x00},
{WIN_MODE, 0x00},
{IMG_ORIENTATION, 0x00},
{COMMAND_UPDATE, 0x01},
/// SYNC function config.
{0x3010, 0x00},
{0x3013, 0x01},
{0x3019, 0x00},
{0x301A, 0x00},
{0x301B, 0x20},
{0x301C, 0xFF},
// PREMETER config.
{0x3026, 0x03},
{0x3027, 0x81},
{0x3028, 0x01},
{0x3029, 0x00},
{0x302A, 0x30},
{0x302E, 0x00},
{0x302F, 0x00},
// Magic regs 🪄.
{0x302B, 0x2A},
{0x302C, 0x00},
{0x302D, 0x03},
{0x3031, 0x01},
{0x3051, 0x00},
{0x305C, 0x03},
{0x3060, 0x00},
{0x3061, 0xFA},
{0x3062, 0xFF},
{0x3063, 0xFF},
{0x3064, 0xFF},
{0x3065, 0xFF},
{0x3066, 0xFF},
{0x3067, 0xFF},
{0x3068, 0xFF},
{0x3069, 0xFF},
{0x306A, 0xFF},
{0x306B, 0xFF},
{0x306C, 0xFF},
{0x306D, 0xFF},
{0x306E, 0xFF},
{0x306F, 0xFF},
{0x3070, 0xFF},
{0x3071, 0xFF},
{0x3072, 0xFF},
{0x3073, 0xFF},
{0x3074, 0xFF},
{0x3075, 0xFF},
{0x3076, 0xFF},
{0x3077, 0xFF},
{0x3078, 0xFF},
{0x3079, 0xFF},
{0x307A, 0xFF},
{0x307B, 0xFF},
{0x307C, 0xFF},
{0x307D, 0xFF},
{0x307E, 0xFF},
{0x307F, 0xFF},
{0x3080, 0x01},
{0x3081, 0x01},
{0x3082, 0x03},
{0x3083, 0x20},
{0x3084, 0x00},
{0x3085, 0x20},
{0x3086, 0x00},
{0x3087, 0x20},
{0x3088, 0x00},
{0x3089, 0x04},
{0x3094, 0x02},
{0x3095, 0x02},
{0x3096, 0x00},
{0x3097, 0x02},
{0x3098, 0x00},
{0x3099, 0x02},
{0x309E, 0x05},
{0x309F, 0x02},
{0x30A0, 0x02},
{0x30A1, 0x00},
{0x30A2, 0x08},
{0x30A3, 0x00},
{0x30A4, 0x20},
{0x30A5, 0x04},
{0x30A6, 0x02},
{0x30A7, 0x02},
{0x30A8, 0x01},
{0x30A9, 0x00},
{0x30AA, 0x02},
{0x30AB, 0x34},
{0x30B0, 0x03},
{0x30C4, 0x10},
{0x30C5, 0x01},
{0x30C6, 0xBF},
{0x30C7, 0x00},
{0x30C8, 0x00},
{0x30CB, 0xFF},
{0x30CC, 0xFF},
{0x30CD, 0x7F},
{0x30CE, 0x7F},
{0x30D3, 0x01},
{0x30D4, 0xFF},
{0x30D5, 0x00},
{0x30D6, 0x40},
{0x30D7, 0x00},
{0x30D8, 0xA7},
{0x30D9, 0x05},
{0x30DA, 0x01},
{0x30DB, 0x40},
{0x30DC, 0x00},
{0x30DD, 0x27},
{0x30DE, 0x05},
{0x30DF, 0x07},
{0x30E0, 0x40},
{0x30E1, 0x00},
{0x30E2, 0x27},
{0x30E3, 0x05},
{0x30E4, 0x47},
{0x30E5, 0x30},
{0x30E6, 0x00},
{0x30E7, 0x27},
{0x30E8, 0x05},
{0x30E9, 0x87},
{0x30EA, 0x30},
{0x30EB, 0x00},
{0x30EC, 0x27},
{0x30ED, 0x05},
{0x30EE, 0x00},
{0x30EF, 0x40},
{0x30F0, 0x00},
{0x30F1, 0xA7},
{0x30F2, 0x05},
{0x30F3, 0x01},
{0x30F4, 0x40},
{0x30F5, 0x00},
{0x30F6, 0x27},
{0x30F7, 0x05},
{0x30F8, 0x07},
{0x30F9, 0x40},
{0x30FA, 0x00},
{0x30FB, 0x27},
{0x30FC, 0x05},
{0x30FD, 0x47},
{0x30FE, 0x30},
{0x30FF, 0x00},
{0x3100, 0x27},
{0x3101, 0x05},
{0x3102, 0x87},
{0x3103, 0x30},
{0x3104, 0x00},
{0x3105, 0x27},
{0x3106, 0x05},
{0x310B, 0x10},
{0x3113, 0xA0},
{0x3114, 0x67},
{0x3115, 0x42},
{0x3116, 0x10},
{0x3117, 0x0A},
{0x3118, 0x3F},
{0x311C, 0x10},
{0x311D, 0x06},
{0x311E, 0x0F},
{0x311F, 0x0E},
{0x3120, 0x0D},
{0x3121, 0x0F},
{0x3122, 0x00},
{0x3123, 0x1D},
{0x3126, 0x03},
{0x3128, 0x57},
{0x312A, 0x11},
{0x312B, 0x41},
{0x312E, 0x00},
{0x312F, 0x00},
{0x3130, 0x0C},
{0x3141, 0x2A},
{0x3142, 0x9F},
{0x3147, 0x18},
{0x3149, 0x18},
{0x314B, 0x01},
{0x3150, 0x50},
{0x3152, 0x00},
{0x3156, 0x2C},
{0x315A, 0x0A},
{0x315B, 0x2F},
{0x315C, 0xE0},
{0x315F, 0x02},
{0x3160, 0x1F},
{0x3163, 0x1F},
{0x3164, 0x7F},
{0x3165, 0x7F},
{0x317B, 0x94},
{0x317C, 0x00},
{0x317D, 0x02},
{0x318C, 0x00},
{COMMAND_UPDATE, 0x01},
{0x0000, 0x00},
};
static int reset(omv_csi_t *csi) {
// Reset csi.
uint8_t reg = 0xff;
for (int retry = HIMAX_BOOT_RETRY; retry >= 0 && reg != HIMAX_MODE_STANDBY; retry--) {
if (omv_i2c_writeb2(csi->i2c, csi->slv_addr, SW_RESET, HIMAX_RESET) != 0) {
return -1;
}
mp_hal_delay_ms(1);
if (omv_i2c_readb2(csi->i2c, csi->slv_addr, MODE_SELECT, &reg) != 0) {
return -1;
}
if (reg == HIMAX_MODE_STANDBY) {
break;
} else if (retry == 0) {
return -1;
}
mp_hal_delay_ms(10);
}
// Write default registers
int ret = 0;
for (int i = 0; default_regs[i][0] && ret == 0; i++) {
ret |= omv_i2c_writeb2(csi->i2c, csi->slv_addr, default_regs[i][0], default_regs[i][1]);
}
// Set mode to streaming
ret |= omv_i2c_writeb2(csi->i2c, csi->slv_addr, MODE_SELECT, HIMAX_MODE_STREAMING);
return ret;
}
static int read_reg(omv_csi_t *csi, uint16_t reg_addr) {
uint8_t reg_data;
if (omv_i2c_readb2(csi->i2c, csi->slv_addr, reg_addr, &reg_data) != 0) {
return -1;
}
return reg_data;
}
static int write_reg(omv_csi_t *csi, uint16_t reg_addr, uint16_t reg_data) {
return omv_i2c_writeb2(csi->i2c, csi->slv_addr, reg_addr, reg_data);
}
static int set_pixformat(omv_csi_t *csi, pixformat_t pixformat) {
switch (pixformat) {
case PIXFORMAT_BAYER:
case PIXFORMAT_GRAYSCALE:
return 0;
default:
return -1;
}
}
static const uint16_t VGA_regs[][2] = {
{PLL1_CONFIG, 0x08}, // Core = 24MHz PCLKO = 24MHz I2C = 12MHz
{H_SUBSAMPLE, 0x00},
{V_SUBSAMPLE, 0x00},
{BINNING_MODE, 0x00},
{WIN_MODE, 0x00},
{MAX_INTG_H, (HIMAX_FRAME_LENGTH_VGA - 4) >> 8},
{MAX_INTG_L, (HIMAX_FRAME_LENGTH_VGA - 4) & 0xFF},
{FRAME_LEN_LINES_H, (HIMAX_FRAME_LENGTH_VGA >> 8)},
{FRAME_LEN_LINES_L, (HIMAX_FRAME_LENGTH_VGA & 0xFF)},
{LINE_LEN_PCK_H, (HIMAX_LINE_LEN_PCK_VGA >> 8)},
{LINE_LEN_PCK_L, (HIMAX_LINE_LEN_PCK_VGA & 0xFF)},
{ROI_START_END_H, 0xF0},
{ROI_START_END_V, 0xE0},
{COMMAND_UPDATE, 0x01},
{0x0000, 0x00},
};
static const uint16_t QVGA_regs[][2] = {
{PLL1_CONFIG, 0x09}, // Core = 12MHz PCLKO = 24MHz I2C = 12MHz
{H_SUBSAMPLE, 0x01},
{V_SUBSAMPLE, 0x01},
{BINNING_MODE, 0x00},
{WIN_MODE, 0x00},
{MAX_INTG_H, (HIMAX_FRAME_LENGTH_QVGA - 4) >> 8},
{MAX_INTG_L, (HIMAX_FRAME_LENGTH_QVGA - 4) & 0xFF},
{FRAME_LEN_LINES_H, (HIMAX_FRAME_LENGTH_QVGA >> 8)},
{FRAME_LEN_LINES_L, (HIMAX_FRAME_LENGTH_QVGA & 0xFF)},
{LINE_LEN_PCK_H, (HIMAX_LINE_LEN_PCK_QVGA >> 8)},
{LINE_LEN_PCK_L, (HIMAX_LINE_LEN_PCK_QVGA & 0xFF)},
{ROI_START_END_H, 0xF0},
{ROI_START_END_V, 0xE0},
{COMMAND_UPDATE, 0x01},
{0x0000, 0x00},
};
static const uint16_t QQVGA_regs[][2] = {
{PLL1_CONFIG, 0x09}, // Core = 12MHz PCLKO = 24MHz I2C = 12MHz
{H_SUBSAMPLE, 0x02},
{V_SUBSAMPLE, 0x02},
{BINNING_MODE, 0x00},
{WIN_MODE, 0x00},
{MAX_INTG_H, (HIMAX_FRAME_LENGTH_QQVGA - 4) >> 8},
{MAX_INTG_L, (HIMAX_FRAME_LENGTH_QQVGA - 4) & 0xFF},
{FRAME_LEN_LINES_H, (HIMAX_FRAME_LENGTH_QQVGA >> 8)},
{FRAME_LEN_LINES_L, (HIMAX_FRAME_LENGTH_QQVGA & 0xFF)},
{LINE_LEN_PCK_H, (HIMAX_LINE_LEN_PCK_QQVGA >> 8)},
{LINE_LEN_PCK_L, (HIMAX_LINE_LEN_PCK_QQVGA & 0xFF)},
{ROI_START_END_H, 0xF0},
{ROI_START_END_V, 0xD0},
{COMMAND_UPDATE, 0x01},
{0x0000, 0x00},
};
static int set_framesize(omv_csi_t *csi, omv_csi_framesize_t framesize) {
int ret = 0;
switch (framesize) {
case OMV_CSI_FRAMESIZE_VGA:
for (int i = 0; VGA_regs[i][0] && ret == 0; i++) {
ret |= omv_i2c_writeb2(csi->i2c, csi->slv_addr, VGA_regs[i][0], VGA_regs[i][1]);
}
break;
case OMV_CSI_FRAMESIZE_QVGA:
for (int i = 0; QVGA_regs[i][0] && ret == 0; i++) {
ret |= omv_i2c_writeb2(csi->i2c, csi->slv_addr, QVGA_regs[i][0], QVGA_regs[i][1]);
}
break;
case OMV_CSI_FRAMESIZE_QQVGA:
for (int i = 0; QQVGA_regs[i][0] && ret == 0; i++) {
ret |= omv_i2c_writeb2(csi->i2c, csi->slv_addr, QQVGA_regs[i][0], QQVGA_regs[i][1]);
}
break;
default:
ret = -1;
}
return ret;
}
static int set_framerate(omv_csi_t *csi, int framerate) {
int ret = 0;
uint8_t pll_cfg = 0;
uint8_t osc_div = 0;
bool highres = false;
if (csi->framesize == OMV_CSI_FRAMESIZE_VGA) {
highres = true;
}
if (framerate <= 10) {
osc_div = (highres == true) ? 0x03 : 0x03;
} else if (framerate <= 15) {
osc_div = (highres == true) ? 0x02 : 0x03;
} else if (framerate <= 30) {
osc_div = (highres == true) ? 0x01 : 0x02;
} else {
// Set to the max possible FPS at this resolution.
osc_div = (highres == true) ? 0x00 : 0x01;
}
ret |= omv_i2c_readb2(csi->i2c, csi->slv_addr, PLL1_CONFIG, &pll_cfg);
ret |= omv_i2c_writeb2(csi->i2c, csi->slv_addr, PLL1_CONFIG, (pll_cfg & 0xFC) | osc_div);
return ret;
}
static int set_brightness(omv_csi_t *csi, int level) {
uint8_t ae_mean;
// Simulate brightness levels by setting AE loop target mean.
switch (level) {
case 1:
ae_mean = 150;
break;
case 2:
ae_mean = 200;
break;
case 3:
ae_mean = 250;
break;
case 0:
default:
ae_mean = 100;
break;
}
return omv_i2c_writeb2(csi->i2c, csi->slv_addr, AE_TARGET_MEAN, ae_mean);
}
static int set_gainceiling(omv_csi_t *csi, omv_csi_gainceiling_t gainceiling) {
int ret = 0;
int gain = 0x0;
switch (gainceiling) {
case OMV_CSI_GAINCEILING_2X:
gain = 0x01;
break;
case OMV_CSI_GAINCEILING_4X:
gain = 0x02;
break;
case OMV_CSI_GAINCEILING_8X:
gain = 0x03;
break;
case OMV_CSI_GAINCEILING_16X:
gain = 0x04;
break;
default:
return -1;
}
ret |= omv_i2c_writeb2(csi->i2c, csi->slv_addr, MAX_AGAIN, (gain & 0x07));
return ret;
}
static int set_colorbar(omv_csi_t *csi, int enable) {
return omv_i2c_writeb2(csi->i2c, csi->slv_addr, TEST_PATTERN_MODE, enable & 0x1);
}
static int set_auto_gain(omv_csi_t *csi, int enable, float gain_db, float gain_db_ceiling) {
uint8_t ae_ctrl = 0;
int ret = omv_i2c_readb2(csi->i2c, csi->slv_addr, AE_CTRL, &ae_ctrl);
if (!enable && (!isnanf(gain_db)) && (!isinff(gain_db))) {
gain_db = IM_CLAMP(gain_db, 0.0f, 24.0f);
uint8_t gain = fast_ceilf(logf(expf((gain_db / 20.0f) * M_LN10)) / M_LN2);
ret |= omv_i2c_writeb2(csi->i2c, csi->slv_addr, AE_CTRL, (ae_ctrl & 0xFE));
ret |= omv_i2c_writeb2(csi->i2c, csi->slv_addr, ANALOG_GAIN, ((gain & 0x7) << 4));
} else if (enable && (!isnanf(gain_db_ceiling)) && (!isinff(gain_db_ceiling))) {
gain_db_ceiling = IM_CLAMP(gain_db_ceiling, 0.0f, 24.0f);
uint8_t gain = fast_ceilf(logf(expf((gain_db_ceiling / 20.0f) * M_LN10)) / M_LN2);
ret |= omv_i2c_writeb2(csi->i2c, csi->slv_addr, MAX_AGAIN, (gain & 0x07));
ret |= omv_i2c_writeb2(csi->i2c, csi->slv_addr, AE_CTRL, (ae_ctrl | 0x01));
}
ret |= omv_i2c_writeb2(csi->i2c, csi->slv_addr, COMMAND_UPDATE, 0x01);
return ret;
}
static int get_gain_db(omv_csi_t *csi, float *gain_db) {
uint8_t gain;
if (omv_i2c_readb2(csi->i2c, csi->slv_addr, ANALOG_GAIN, &gain) != 0) {
return -1;
}
*gain_db = fast_floorf(log10f(1 << (gain >> 4)) * 20.0f);
return 0;
}
static int get_vt_pix_clk(omv_csi_t *csi, uint32_t *vt_pix_clk) {
uint8_t reg;
if (omv_i2c_readb2(csi->i2c, csi->slv_addr, PLL1_CONFIG, &reg) != 0) {
return -1;
}
// 00 -> MCLK / 1
// 01 -> MCLK / 2
// 10 -> MCLK / 4
// 11 -> MCLK / 8
uint32_t vt_sys_div = (1 << (reg & 0x03));
// vt_pix_clk = MCLK / vt_sys_div
*vt_pix_clk = OMV_CSI_CLK_FREQUENCY / vt_sys_div;
return 0;
}
static int set_auto_exposure(omv_csi_t *csi, int enable, int exposure_us) {
uint8_t ae_ctrl = 0;
int ret = omv_i2c_readb2(csi->i2c, csi->slv_addr, AE_CTRL, &ae_ctrl);
if (enable) {
ret |= omv_i2c_writeb2(csi->i2c, csi->slv_addr, AE_CTRL, (ae_ctrl | 0x01));
} else {
uint32_t line_len;
uint32_t frame_len;
uint32_t coarse_int;
uint32_t vt_pix_clk = 0;
switch (csi->framesize) {
case OMV_CSI_FRAMESIZE_VGA:
line_len = HIMAX_LINE_LEN_PCK_VGA;
frame_len = HIMAX_FRAME_LENGTH_VGA;
break;
case OMV_CSI_FRAMESIZE_QVGA:
line_len = HIMAX_LINE_LEN_PCK_QVGA;
frame_len = HIMAX_FRAME_LENGTH_QVGA;
break;
case OMV_CSI_FRAMESIZE_QQVGA:
line_len = HIMAX_LINE_LEN_PCK_QQVGA;
frame_len = HIMAX_FRAME_LENGTH_QQVGA;
break;
default:
return -1;
}
ret |= get_vt_pix_clk(csi, &vt_pix_clk);
coarse_int = fast_roundf(exposure_us * (vt_pix_clk / 1000000.0f) / line_len);
if (coarse_int < 2) {
coarse_int = 2;
} else if (coarse_int > (frame_len - 4)) {
coarse_int = frame_len - 4;
}
ret |= omv_i2c_writeb2(csi->i2c, csi->slv_addr, AE_CTRL, (ae_ctrl & 0xFE));
ret |= omv_i2c_writeb2(csi->i2c, csi->slv_addr, INTEGRATION_H, coarse_int >> 8);
ret |= omv_i2c_writeb2(csi->i2c, csi->slv_addr, INTEGRATION_L, coarse_int & 0xff);
ret |= omv_i2c_writeb2(csi->i2c, csi->slv_addr, COMMAND_UPDATE, 0x01);
}
return ret;
}
static int get_exposure_us(omv_csi_t *csi, int *exposure_us) {
int ret = 0;
uint32_t line_len;
uint32_t coarse_int = 0;
uint32_t vt_pix_clk = 0;
switch (csi->framesize) {
case OMV_CSI_FRAMESIZE_VGA:
line_len = HIMAX_LINE_LEN_PCK_VGA;
break;
case OMV_CSI_FRAMESIZE_QVGA:
line_len = HIMAX_LINE_LEN_PCK_QVGA;
break;
case OMV_CSI_FRAMESIZE_QQVGA:
line_len = HIMAX_LINE_LEN_PCK_QQVGA;
break;
default:
return -1;
}
ret |= get_vt_pix_clk(csi, &vt_pix_clk);
ret |= omv_i2c_readb2(csi->i2c, csi->slv_addr, INTEGRATION_H, &((uint8_t *) &coarse_int)[1]);
ret |= omv_i2c_readb2(csi->i2c, csi->slv_addr, INTEGRATION_L, &((uint8_t *) &coarse_int)[0]);
*exposure_us = fast_roundf(coarse_int * line_len / (vt_pix_clk / 1000000.0f));
return ret;
}
static int set_hmirror(omv_csi_t *csi, int enable) {
uint8_t reg;
int ret = omv_i2c_readb2(csi->i2c, csi->slv_addr, IMG_ORIENTATION, &reg);
ret |= omv_i2c_writeb2(csi->i2c, csi->slv_addr, IMG_ORIENTATION, HIMAX_SET_HMIRROR(reg, enable));
ret |= omv_i2c_writeb2(csi->i2c, csi->slv_addr, COMMAND_UPDATE, 0x01);
return ret;
}
static int set_vflip(omv_csi_t *csi, int enable) {
uint8_t reg;
int ret = omv_i2c_readb2(csi->i2c, csi->slv_addr, IMG_ORIENTATION, &reg);
ret |= omv_i2c_writeb2(csi->i2c, csi->slv_addr, IMG_ORIENTATION, HIMAX_SET_VMIRROR(reg, enable));
ret |= omv_i2c_writeb2(csi->i2c, csi->slv_addr, COMMAND_UPDATE, 0x01);
return ret;
}
static int ioctl(omv_csi_t *csi, int request, va_list ap) {
int ret = 0;
switch (request) {
case OMV_CSI_IOCTL_HIMAX_OSC_ENABLE: {
break;
}
case OMV_CSI_IOCTL_HIMAX_MD_ENABLE: {
int ret = 0;
uint8_t md_ctrl = 0;
uint32_t enable = va_arg(ap, uint32_t) & 0x01;
ret |= omv_i2c_readb2(csi->i2c, csi->slv_addr, MD_CTRL, &md_ctrl);
ret |= omv_i2c_writeb2(csi->i2c, csi->slv_addr, MD_CTRL, (md_ctrl & 0xFE) | enable);
break;
}
case OMV_CSI_IOCTL_HIMAX_MD_WINDOW: {
int ret = 0;
int32_t roi_w = 0;
int32_t roi_h = 0;
int32_t roi_max_h = 14;
int32_t x1 = va_arg(ap, int32_t);
int32_t y1 = va_arg(ap, int32_t);
int32_t x2 = va_arg(ap, int32_t) + x1;
int32_t y2 = va_arg(ap, int32_t) + y1;
switch (csi->framesize) {
case OMV_CSI_FRAMESIZE_VGA:
roi_w = HIMAX_MD_ROI_VGA_W;
roi_h = HIMAX_MD_ROI_VGA_H;
roi_max_h = 14;
break;
case OMV_CSI_FRAMESIZE_QVGA:
roi_w = HIMAX_MD_ROI_QVGA_W;
roi_h = HIMAX_MD_ROI_QVGA_H;
roi_max_h = 14;
break;
case OMV_CSI_FRAMESIZE_QQVGA:
roi_w = HIMAX_MD_ROI_QQVGA_W;
roi_h = HIMAX_MD_ROI_QQVGA_H;
roi_max_h = 13;
break;
default:
return -1;
}
x1 = MAX((x1 / roi_w - 1), 0);
y1 = MAX((y1 / roi_h - 1), 0);
x2 = MIN((x2 / roi_w) + !!(x2 % roi_w), 0xF);
y2 = MIN((y2 / roi_h) + !!(y2 % roi_h), roi_max_h);
ret |= omv_i2c_writeb2(csi->i2c, csi->slv_addr, ROI_START_END_H, ((x2 & 0xF) << 4) | (x1 & 0x0F));
ret |= omv_i2c_writeb2(csi->i2c, csi->slv_addr, ROI_START_END_V, ((y2 & 0xF) << 4) | (y1 & 0x0F));
break;
}
case OMV_CSI_IOCTL_HIMAX_MD_THRESHOLD: {
uint32_t threshold = va_arg(ap, uint32_t) & 0x3F;
ret |= omv_i2c_writeb2(csi->i2c, csi->slv_addr, MD_TH_STR_L, threshold);
ret |= omv_i2c_writeb2(csi->i2c, csi->slv_addr, MD_TH_STR_H, threshold);
ret |= omv_i2c_writeb2(csi->i2c, csi->slv_addr, MD_LIGHT_COEF, threshold);
break;
}
case OMV_CSI_IOCTL_HIMAX_MD_CLEAR: {
ret = omv_i2c_writeb2(csi->i2c, csi->slv_addr, INT_CLEAR, (1 << 3));
break;
}
default: {
ret = -1;
break;
}
}
return ret;
}
int hm0360_init(omv_csi_t *csi) {
// Initialize csi structure.
csi->reset = reset;
csi->read_reg = read_reg;
csi->write_reg = write_reg;
csi->set_pixformat = set_pixformat;
csi->set_framesize = set_framesize;
csi->set_framerate = set_framerate;
csi->set_brightness = set_brightness;
csi->set_gainceiling = set_gainceiling;
csi->set_colorbar = set_colorbar;
csi->set_auto_gain = set_auto_gain;
csi->get_gain_db = get_gain_db;
csi->set_auto_exposure = set_auto_exposure;
csi->get_exposure_us = get_exposure_us;
csi->set_hmirror = set_hmirror;
csi->set_vflip = set_vflip;
csi->ioctl = ioctl;
// Set csi flags
csi->vsync_pol = 0;
csi->hsync_pol = 0;
csi->pixck_pol = 0;
csi->frame_sync = 0;
csi->mono_bpp = 1;
return 0;
}
#endif //(OMV_HM0360_ENABLE == 1)