| Author | Tokens | Token Proportion | Commits | Commit Proportion |
|---|---|---|---|---|
| Paul Kocialkowski | 9928 | 99.57% | 2 | 22.22% |
| Hans de Goede | 24 | 0.24% | 1 | 11.11% |
| Tomi Valkeinen | 12 | 0.12% | 1 | 11.11% |
| Laurent Pinchart | 2 | 0.02% | 1 | 11.11% |
| Yang Yingliang | 2 | 0.02% | 1 | 11.11% |
| Mauro Carvalho Chehab | 1 | 0.01% | 1 | 11.11% |
| Colin Ian King | 1 | 0.01% | 1 | 11.11% |
| Sakari Ailus | 1 | 0.01% | 1 | 11.11% |
| Total | 9971 | 9 |
// SPDX-License-Identifier: GPL-2.0-or-later /* * Copyright (C) 2020 Bootlin * Author: Paul Kocialkowski <paul.kocialkowski@bootlin.com> */ #include <linux/clk.h> #include <linux/delay.h> #include <linux/device.h> #include <linux/i2c.h> #include <linux/module.h> #include <linux/of_graph.h> #include <linux/pm_runtime.h> #include <linux/regulator/consumer.h> #include <linux/videodev2.h> #include <media/v4l2-ctrls.h> #include <media/v4l2-device.h> #include <media/v4l2-fwnode.h> #include <media/v4l2-image-sizes.h> #include <media/v4l2-mediabus.h> /* Clock rate */ #define OV5648_XVCLK_RATE 24000000 /* Register definitions */ /* System */ #define OV5648_SW_STANDBY_REG 0x100 #define OV5648_SW_STANDBY_STREAM_ON BIT(0) #define OV5648_SW_RESET_REG 0x103 #define OV5648_SW_RESET_RESET BIT(0) #define OV5648_PAD_OEN0_REG 0x3000 #define OV5648_PAD_OEN1_REG 0x3001 #define OV5648_PAD_OEN2_REG 0x3002 #define OV5648_PAD_OUT0_REG 0x3008 #define OV5648_PAD_OUT1_REG 0x3009 #define OV5648_CHIP_ID_H_REG 0x300a #define OV5648_CHIP_ID_H_VALUE 0x56 #define OV5648_CHIP_ID_L_REG 0x300b #define OV5648_CHIP_ID_L_VALUE 0x48 #define OV5648_PAD_OUT2_REG 0x300d #define OV5648_PAD_SEL0_REG 0x300e #define OV5648_PAD_SEL1_REG 0x300f #define OV5648_PAD_SEL2_REG 0x3010 #define OV5648_PAD_PK_REG 0x3011 #define OV5648_PAD_PK_PD_DATO_EN BIT(7) #define OV5648_PAD_PK_DRIVE_STRENGTH_1X (0 << 5) #define OV5648_PAD_PK_DRIVE_STRENGTH_2X (2 << 5) #define OV5648_PAD_PK_FREX_N BIT(1) #define OV5648_A_PWC_PK_O0_REG 0x3013 #define OV5648_A_PWC_PK_O0_BP_REGULATOR_N BIT(3) #define OV5648_A_PWC_PK_O1_REG 0x3014 #define OV5648_MIPI_PHY0_REG 0x3016 #define OV5648_MIPI_PHY1_REG 0x3017 #define OV5648_MIPI_SC_CTRL0_REG 0x3018 #define OV5648_MIPI_SC_CTRL0_MIPI_LANES(v) (((v) << 5) & GENMASK(7, 5)) #define OV5648_MIPI_SC_CTRL0_PHY_HS_TX_PD BIT(4) #define OV5648_MIPI_SC_CTRL0_PHY_LP_RX_PD BIT(3) #define OV5648_MIPI_SC_CTRL0_MIPI_EN BIT(2) #define OV5648_MIPI_SC_CTRL0_MIPI_SUSP BIT(1) #define OV5648_MIPI_SC_CTRL0_LANE_DIS_OP BIT(0) #define OV5648_MIPI_SC_CTRL1_REG 0x3019 #define OV5648_MISC_CTRL0_REG 0x3021 #define OV5648_MIPI_SC_CTRL2_REG 0x3022 #define OV5648_SUB_ID_REG 0x302a #define OV5648_PLL_CTRL0_REG 0x3034 #define OV5648_PLL_CTRL0_PLL_CHARGE_PUMP(v) (((v) << 4) & GENMASK(6, 4)) #define OV5648_PLL_CTRL0_BITS(v) ((v) & GENMASK(3, 0)) #define OV5648_PLL_CTRL1_REG 0x3035 #define OV5648_PLL_CTRL1_SYS_DIV(v) (((v) << 4) & GENMASK(7, 4)) #define OV5648_PLL_CTRL1_MIPI_DIV(v) ((v) & GENMASK(3, 0)) #define OV5648_PLL_MUL_REG 0x3036 #define OV5648_PLL_MUL(v) ((v) & GENMASK(7, 0)) #define OV5648_PLL_DIV_REG 0x3037 #define OV5648_PLL_DIV_ROOT_DIV(v) ((((v) - 1) << 4) & BIT(4)) #define OV5648_PLL_DIV_PLL_PRE_DIV(v) ((v) & GENMASK(3, 0)) #define OV5648_PLL_DEBUG_REG 0x3038 #define OV5648_PLL_BYPASS_REG 0x3039 #define OV5648_PLLS_BYPASS_REG 0x303a #define OV5648_PLLS_MUL_REG 0x303b #define OV5648_PLLS_MUL(v) ((v) & GENMASK(4, 0)) #define OV5648_PLLS_CTRL_REG 0x303c #define OV5648_PLLS_CTRL_PLL_CHARGE_PUMP(v) (((v) << 4) & GENMASK(6, 4)) #define OV5648_PLLS_CTRL_SYS_DIV(v) ((v) & GENMASK(3, 0)) #define OV5648_PLLS_DIV_REG 0x303d #define OV5648_PLLS_DIV_PLLS_PRE_DIV(v) (((v) << 4) & GENMASK(5, 4)) #define OV5648_PLLS_DIV_PLLS_DIV_R(v) ((((v) - 1) << 2) & BIT(2)) #define OV5648_PLLS_DIV_PLLS_SEL_DIV(v) ((v) & GENMASK(1, 0)) #define OV5648_SRB_CTRL_REG 0x3106 #define OV5648_SRB_CTRL_SCLK_DIV(v) (((v) << 2) & GENMASK(3, 2)) #define OV5648_SRB_CTRL_RESET_ARBITER_EN BIT(1) #define OV5648_SRB_CTRL_SCLK_ARBITER_EN BIT(0) /* Group Hold */ #define OV5648_GROUP_ADR0_REG 0x3200 #define OV5648_GROUP_ADR1_REG 0x3201 #define OV5648_GROUP_ADR2_REG 0x3202 #define OV5648_GROUP_ADR3_REG 0x3203 #define OV5648_GROUP_LEN0_REG 0x3204 #define OV5648_GROUP_LEN1_REG 0x3205 #define OV5648_GROUP_LEN2_REG 0x3206 #define OV5648_GROUP_LEN3_REG 0x3207 #define OV5648_GROUP_ACCESS_REG 0x3208 /* Exposure/gain/banding */ #define OV5648_EXPOSURE_CTRL_HH_REG 0x3500 #define OV5648_EXPOSURE_CTRL_HH(v) (((v) & GENMASK(19, 16)) >> 16) #define OV5648_EXPOSURE_CTRL_HH_VALUE(v) (((v) << 16) & GENMASK(19, 16)) #define OV5648_EXPOSURE_CTRL_H_REG 0x3501 #define OV5648_EXPOSURE_CTRL_H(v) (((v) & GENMASK(15, 8)) >> 8) #define OV5648_EXPOSURE_CTRL_H_VALUE(v) (((v) << 8) & GENMASK(15, 8)) #define OV5648_EXPOSURE_CTRL_L_REG 0x3502 #define OV5648_EXPOSURE_CTRL_L(v) ((v) & GENMASK(7, 0)) #define OV5648_EXPOSURE_CTRL_L_VALUE(v) ((v) & GENMASK(7, 0)) #define OV5648_MANUAL_CTRL_REG 0x3503 #define OV5648_MANUAL_CTRL_FRAME_DELAY(v) (((v) << 4) & GENMASK(5, 4)) #define OV5648_MANUAL_CTRL_AGC_MANUAL_EN BIT(1) #define OV5648_MANUAL_CTRL_AEC_MANUAL_EN BIT(0) #define OV5648_GAIN_CTRL_H_REG 0x350a #define OV5648_GAIN_CTRL_H(v) (((v) & GENMASK(9, 8)) >> 8) #define OV5648_GAIN_CTRL_H_VALUE(v) (((v) << 8) & GENMASK(9, 8)) #define OV5648_GAIN_CTRL_L_REG 0x350b #define OV5648_GAIN_CTRL_L(v) ((v) & GENMASK(7, 0)) #define OV5648_GAIN_CTRL_L_VALUE(v) ((v) & GENMASK(7, 0)) #define OV5648_ANALOG_CTRL0_REG_BASE 0x3600 #define OV5648_ANALOG_CTRL1_REG_BASE 0x3700 #define OV5648_AEC_CTRL0_REG 0x3a00 #define OV5648_AEC_CTRL0_DEBUG BIT(6) #define OV5648_AEC_CTRL0_DEBAND_EN BIT(5) #define OV5648_AEC_CTRL0_DEBAND_LOW_LIMIT_EN BIT(4) #define OV5648_AEC_CTRL0_START_SEL_EN BIT(3) #define OV5648_AEC_CTRL0_NIGHT_MODE_EN BIT(2) #define OV5648_AEC_CTRL0_FREEZE_EN BIT(0) #define OV5648_EXPOSURE_MIN_REG 0x3a01 #define OV5648_EXPOSURE_MAX_60_H_REG 0x3a02 #define OV5648_EXPOSURE_MAX_60_L_REG 0x3a03 #define OV5648_AEC_CTRL5_REG 0x3a05 #define OV5648_AEC_CTRL6_REG 0x3a06 #define OV5648_AEC_CTRL7_REG 0x3a07 #define OV5648_BANDING_STEP_50_H_REG 0x3a08 #define OV5648_BANDING_STEP_50_L_REG 0x3a09 #define OV5648_BANDING_STEP_60_H_REG 0x3a0a #define OV5648_BANDING_STEP_60_L_REG 0x3a0b #define OV5648_AEC_CTRLC_REG 0x3a0c #define OV5648_BANDING_MAX_60_REG 0x3a0d #define OV5648_BANDING_MAX_50_REG 0x3a0e #define OV5648_WPT_REG 0x3a0f #define OV5648_BPT_REG 0x3a10 #define OV5648_VPT_HIGH_REG 0x3a11 #define OV5648_AVG_MANUAL_REG 0x3a12 #define OV5648_PRE_GAIN_REG 0x3a13 #define OV5648_EXPOSURE_MAX_50_H_REG 0x3a14 #define OV5648_EXPOSURE_MAX_50_L_REG 0x3a15 #define OV5648_GAIN_BASE_NIGHT_REG 0x3a17 #define OV5648_AEC_GAIN_CEILING_H_REG 0x3a18 #define OV5648_AEC_GAIN_CEILING_L_REG 0x3a19 #define OV5648_DIFF_MAX_REG 0x3a1a #define OV5648_WPT2_REG 0x3a1b #define OV5648_LED_ADD_ROW_H_REG 0x3a1c #define OV5648_LED_ADD_ROW_L_REG 0x3a1d #define OV5648_BPT2_REG 0x3a1e #define OV5648_VPT_LOW_REG 0x3a1f #define OV5648_AEC_CTRL20_REG 0x3a20 #define OV5648_AEC_CTRL21_REG 0x3a21 #define OV5648_AVG_START_X_H_REG 0x5680 #define OV5648_AVG_START_X_L_REG 0x5681 #define OV5648_AVG_START_Y_H_REG 0x5682 #define OV5648_AVG_START_Y_L_REG 0x5683 #define OV5648_AVG_WINDOW_X_H_REG 0x5684 #define OV5648_AVG_WINDOW_X_L_REG 0x5685 #define OV5648_AVG_WINDOW_Y_H_REG 0x5686 #define OV5648_AVG_WINDOW_Y_L_REG 0x5687 #define OV5648_AVG_WEIGHT00_REG 0x5688 #define OV5648_AVG_WEIGHT01_REG 0x5689 #define OV5648_AVG_WEIGHT02_REG 0x568a #define OV5648_AVG_WEIGHT03_REG 0x568b #define OV5648_AVG_WEIGHT04_REG 0x568c #define OV5648_AVG_WEIGHT05_REG 0x568d #define OV5648_AVG_WEIGHT06_REG 0x568e #define OV5648_AVG_WEIGHT07_REG 0x568f #define OV5648_AVG_CTRL10_REG 0x5690 #define OV5648_AVG_WEIGHT_SUM_REG 0x5691 #define OV5648_AVG_READOUT_REG 0x5693 #define OV5648_DIG_CTRL0_REG 0x5a00 #define OV5648_DIG_COMP_MAN_H_REG 0x5a02 #define OV5648_DIG_COMP_MAN_L_REG 0x5a03 #define OV5648_GAINC_MAN_H_REG 0x5a20 #define OV5648_GAINC_MAN_L_REG 0x5a21 #define OV5648_GAINC_DGC_MAN_H_REG 0x5a22 #define OV5648_GAINC_DGC_MAN_L_REG 0x5a23 #define OV5648_GAINC_CTRL0_REG 0x5a24 #define OV5648_GAINF_ANA_NUM_REG 0x5a40 #define OV5648_GAINF_DIG_GAIN_REG 0x5a41 /* Timing */ #define OV5648_CROP_START_X_H_REG 0x3800 #define OV5648_CROP_START_X_H(v) (((v) & GENMASK(11, 8)) >> 8) #define OV5648_CROP_START_X_L_REG 0x3801 #define OV5648_CROP_START_X_L(v) ((v) & GENMASK(7, 0)) #define OV5648_CROP_START_Y_H_REG 0x3802 #define OV5648_CROP_START_Y_H(v) (((v) & GENMASK(11, 8)) >> 8) #define OV5648_CROP_START_Y_L_REG 0x3803 #define OV5648_CROP_START_Y_L(v) ((v) & GENMASK(7, 0)) #define OV5648_CROP_END_X_H_REG 0x3804 #define OV5648_CROP_END_X_H(v) (((v) & GENMASK(11, 8)) >> 8) #define OV5648_CROP_END_X_L_REG 0x3805 #define OV5648_CROP_END_X_L(v) ((v) & GENMASK(7, 0)) #define OV5648_CROP_END_Y_H_REG 0x3806 #define OV5648_CROP_END_Y_H(v) (((v) & GENMASK(11, 8)) >> 8) #define OV5648_CROP_END_Y_L_REG 0x3807 #define OV5648_CROP_END_Y_L(v) ((v) & GENMASK(7, 0)) #define OV5648_OUTPUT_SIZE_X_H_REG 0x3808 #define OV5648_OUTPUT_SIZE_X_H(v) (((v) & GENMASK(11, 8)) >> 8) #define OV5648_OUTPUT_SIZE_X_L_REG 0x3809 #define OV5648_OUTPUT_SIZE_X_L(v) ((v) & GENMASK(7, 0)) #define OV5648_OUTPUT_SIZE_Y_H_REG 0x380a #define OV5648_OUTPUT_SIZE_Y_H(v) (((v) & GENMASK(11, 8)) >> 8) #define OV5648_OUTPUT_SIZE_Y_L_REG 0x380b #define OV5648_OUTPUT_SIZE_Y_L(v) ((v) & GENMASK(7, 0)) #define OV5648_HTS_H_REG 0x380c #define OV5648_HTS_H(v) (((v) & GENMASK(12, 8)) >> 8) #define OV5648_HTS_L_REG 0x380d #define OV5648_HTS_L(v) ((v) & GENMASK(7, 0)) #define OV5648_VTS_H_REG 0x380e #define OV5648_VTS_H(v) (((v) & GENMASK(15, 8)) >> 8) #define OV5648_VTS_L_REG 0x380f #define OV5648_VTS_L(v) ((v) & GENMASK(7, 0)) #define OV5648_OFFSET_X_H_REG 0x3810 #define OV5648_OFFSET_X_H(v) (((v) & GENMASK(11, 8)) >> 8) #define OV5648_OFFSET_X_L_REG 0x3811 #define OV5648_OFFSET_X_L(v) ((v) & GENMASK(7, 0)) #define OV5648_OFFSET_Y_H_REG 0x3812 #define OV5648_OFFSET_Y_H(v) (((v) & GENMASK(11, 8)) >> 8) #define OV5648_OFFSET_Y_L_REG 0x3813 #define OV5648_OFFSET_Y_L(v) ((v) & GENMASK(7, 0)) #define OV5648_SUB_INC_X_REG 0x3814 #define OV5648_SUB_INC_X_ODD(v) (((v) << 4) & GENMASK(7, 4)) #define OV5648_SUB_INC_X_EVEN(v) ((v) & GENMASK(3, 0)) #define OV5648_SUB_INC_Y_REG 0x3815 #define OV5648_SUB_INC_Y_ODD(v) (((v) << 4) & GENMASK(7, 4)) #define OV5648_SUB_INC_Y_EVEN(v) ((v) & GENMASK(3, 0)) #define OV5648_HSYNCST_H_REG 0x3816 #define OV5648_HSYNCST_H(v) (((v) >> 8) & 0xf) #define OV5648_HSYNCST_L_REG 0x3817 #define OV5648_HSYNCST_L(v) ((v) & GENMASK(7, 0)) #define OV5648_HSYNCW_H_REG 0x3818 #define OV5648_HSYNCW_H(v) (((v) >> 8) & 0xf) #define OV5648_HSYNCW_L_REG 0x3819 #define OV5648_HSYNCW_L(v) ((v) & GENMASK(7, 0)) #define OV5648_TC20_REG 0x3820 #define OV5648_TC20_DEBUG BIT(6) #define OV5648_TC20_FLIP_VERT_ISP_EN BIT(2) #define OV5648_TC20_FLIP_VERT_SENSOR_EN BIT(1) #define OV5648_TC20_BINNING_VERT_EN BIT(0) #define OV5648_TC21_REG 0x3821 #define OV5648_TC21_FLIP_HORZ_ISP_EN BIT(2) #define OV5648_TC21_FLIP_HORZ_SENSOR_EN BIT(1) #define OV5648_TC21_BINNING_HORZ_EN BIT(0) /* Strobe/exposure */ #define OV5648_STROBE_REG 0x3b00 #define OV5648_FREX_EXP_HH_REG 0x3b01 #define OV5648_SHUTTER_DLY_H_REG 0x3b02 #define OV5648_SHUTTER_DLY_L_REG 0x3b03 #define OV5648_FREX_EXP_H_REG 0x3b04 #define OV5648_FREX_EXP_L_REG 0x3b05 #define OV5648_FREX_CTRL_REG 0x3b06 #define OV5648_FREX_MODE_SEL_REG 0x3b07 #define OV5648_FREX_MODE_SEL_FREX_SA1 BIT(4) #define OV5648_FREX_MODE_SEL_FX1_FM_EN BIT(3) #define OV5648_FREX_MODE_SEL_FREX_INV BIT(2) #define OV5648_FREX_MODE_SEL_MODE1 0x0 #define OV5648_FREX_MODE_SEL_MODE2 0x1 #define OV5648_FREX_MODE_SEL_ROLLING 0x2 #define OV5648_FREX_EXP_REQ_REG 0x3b08 #define OV5648_FREX_SHUTTER_DLY_REG 0x3b09 #define OV5648_FREX_RST_LEN_REG 0x3b0a #define OV5648_STROBE_WIDTH_HH_REG 0x3b0b #define OV5648_STROBE_WIDTH_H_REG 0x3b0c /* OTP */ #define OV5648_OTP_DATA_REG_BASE 0x3d00 #define OV5648_OTP_PROGRAM_CTRL_REG 0x3d80 #define OV5648_OTP_LOAD_CTRL_REG 0x3d81 /* PSRAM */ #define OV5648_PSRAM_CTRL1_REG 0x3f01 #define OV5648_PSRAM_CTRLF_REG 0x3f0f /* Black Level */ #define OV5648_BLC_CTRL0_REG 0x4000 #define OV5648_BLC_CTRL1_REG 0x4001 #define OV5648_BLC_CTRL1_START_LINE(v) ((v) & GENMASK(5, 0)) #define OV5648_BLC_CTRL2_REG 0x4002 #define OV5648_BLC_CTRL2_AUTO_EN BIT(6) #define OV5648_BLC_CTRL2_RESET_FRAME_NUM(v) ((v) & GENMASK(5, 0)) #define OV5648_BLC_CTRL3_REG 0x4003 #define OV5648_BLC_LINE_NUM_REG 0x4004 #define OV5648_BLC_LINE_NUM(v) ((v) & GENMASK(7, 0)) #define OV5648_BLC_CTRL5_REG 0x4005 #define OV5648_BLC_CTRL5_UPDATE_EN BIT(1) #define OV5648_BLC_LEVEL_REG 0x4009 /* Frame */ #define OV5648_FRAME_CTRL_REG 0x4200 #define OV5648_FRAME_ON_NUM_REG 0x4201 #define OV5648_FRAME_OFF_NUM_REG 0x4202 /* MIPI CSI-2 */ #define OV5648_MIPI_CTRL0_REG 0x4800 #define OV5648_MIPI_CTRL0_CLK_LANE_AUTOGATE BIT(5) #define OV5648_MIPI_CTRL0_LANE_SYNC_EN BIT(4) #define OV5648_MIPI_CTRL0_LANE_SELECT_LANE1 0 #define OV5648_MIPI_CTRL0_LANE_SELECT_LANE2 BIT(3) #define OV5648_MIPI_CTRL0_IDLE_LP00 0 #define OV5648_MIPI_CTRL0_IDLE_LP11 BIT(2) #define OV5648_MIPI_CTRL1_REG 0x4801 #define OV5648_MIPI_CTRL2_REG 0x4802 #define OV5648_MIPI_CTRL3_REG 0x4803 #define OV5648_MIPI_CTRL4_REG 0x4804 #define OV5648_MIPI_CTRL5_REG 0x4805 #define OV5648_MIPI_MAX_FRAME_COUNT_H_REG 0x4810 #define OV5648_MIPI_MAX_FRAME_COUNT_L_REG 0x4811 #define OV5648_MIPI_CTRL14_REG 0x4814 #define OV5648_MIPI_DT_SPKT_REG 0x4815 #define OV5648_MIPI_HS_ZERO_MIN_H_REG 0x4818 #define OV5648_MIPI_HS_ZERO_MIN_L_REG 0x4819 #define OV5648_MIPI_HS_TRAIN_MIN_H_REG 0x481a #define OV5648_MIPI_HS_TRAIN_MIN_L_REG 0x481b #define OV5648_MIPI_CLK_ZERO_MIN_H_REG 0x481c #define OV5648_MIPI_CLK_ZERO_MIN_L_REG 0x481d #define OV5648_MIPI_CLK_PREPARE_MIN_H_REG 0x481e #define OV5648_MIPI_CLK_PREPARE_MIN_L_REG 0x481f #define OV5648_MIPI_CLK_POST_MIN_H_REG 0x4820 #define OV5648_MIPI_CLK_POST_MIN_L_REG 0x4821 #define OV5648_MIPI_CLK_TRAIL_MIN_H_REG 0x4822 #define OV5648_MIPI_CLK_TRAIL_MIN_L_REG 0x4823 #define OV5648_MIPI_LPX_P_MIN_H_REG 0x4824 #define OV5648_MIPI_LPX_P_MIN_L_REG 0x4825 #define OV5648_MIPI_HS_PREPARE_MIN_H_REG 0x4826 #define OV5648_MIPI_HS_PREPARE_MIN_L_REG 0x4827 #define OV5648_MIPI_HS_EXIT_MIN_H_REG 0x4828 #define OV5648_MIPI_HS_EXIT_MIN_L_REG 0x4829 #define OV5648_MIPI_HS_ZERO_MIN_UI_REG 0x482a #define OV5648_MIPI_HS_TRAIL_MIN_UI_REG 0x482b #define OV5648_MIPI_CLK_ZERO_MIN_UI_REG 0x482c #define OV5648_MIPI_CLK_PREPARE_MIN_UI_REG 0x482d #define OV5648_MIPI_CLK_POST_MIN_UI_REG 0x482e #define OV5648_MIPI_CLK_TRAIL_MIN_UI_REG 0x482f #define OV5648_MIPI_LPX_P_MIN_UI_REG 0x4830 #define OV5648_MIPI_HS_PREPARE_MIN_UI_REG 0x4831 #define OV5648_MIPI_HS_EXIT_MIN_UI_REG 0x4832 #define OV5648_MIPI_REG_MIN_H_REG 0x4833 #define OV5648_MIPI_REG_MIN_L_REG 0x4834 #define OV5648_MIPI_REG_MAX_H_REG 0x4835 #define OV5648_MIPI_REG_MAX_L_REG 0x4836 #define OV5648_MIPI_PCLK_PERIOD_REG 0x4837 #define OV5648_MIPI_WKUP_DLY_REG 0x4838 #define OV5648_MIPI_LP_GPIO_REG 0x483b #define OV5648_MIPI_SNR_PCLK_DIV_REG 0x4843 /* ISP */ #define OV5648_ISP_CTRL0_REG 0x5000 #define OV5648_ISP_CTRL0_BLACK_CORRECT_EN BIT(2) #define OV5648_ISP_CTRL0_WHITE_CORRECT_EN BIT(1) #define OV5648_ISP_CTRL1_REG 0x5001 #define OV5648_ISP_CTRL1_AWB_EN BIT(0) #define OV5648_ISP_CTRL2_REG 0x5002 #define OV5648_ISP_CTRL2_WIN_EN BIT(6) #define OV5648_ISP_CTRL2_OTP_EN BIT(1) #define OV5648_ISP_CTRL2_AWB_GAIN_EN BIT(0) #define OV5648_ISP_CTRL3_REG 0x5003 #define OV5648_ISP_CTRL3_BUF_EN BIT(3) #define OV5648_ISP_CTRL3_BIN_MAN_SET BIT(2) #define OV5648_ISP_CTRL3_BIN_AUTO_EN BIT(1) #define OV5648_ISP_CTRL4_REG 0x5004 #define OV5648_ISP_CTRL5_REG 0x5005 #define OV5648_ISP_CTRL6_REG 0x5006 #define OV5648_ISP_CTRL7_REG 0x5007 #define OV5648_ISP_MAN_OFFSET_X_H_REG 0x5008 #define OV5648_ISP_MAN_OFFSET_X_L_REG 0x5009 #define OV5648_ISP_MAN_OFFSET_Y_H_REG 0x500a #define OV5648_ISP_MAN_OFFSET_Y_L_REG 0x500b #define OV5648_ISP_MAN_WIN_OFFSET_X_H_REG 0x500c #define OV5648_ISP_MAN_WIN_OFFSET_X_L_REG 0x500d #define OV5648_ISP_MAN_WIN_OFFSET_Y_H_REG 0x500e #define OV5648_ISP_MAN_WIN_OFFSET_Y_L_REG 0x500f #define OV5648_ISP_MAN_WIN_OUTPUT_X_H_REG 0x5010 #define OV5648_ISP_MAN_WIN_OUTPUT_X_L_REG 0x5011 #define OV5648_ISP_MAN_WIN_OUTPUT_Y_H_REG 0x5012 #define OV5648_ISP_MAN_WIN_OUTPUT_Y_L_REG 0x5013 #define OV5648_ISP_MAN_INPUT_X_H_REG 0x5014 #define OV5648_ISP_MAN_INPUT_X_L_REG 0x5015 #define OV5648_ISP_MAN_INPUT_Y_H_REG 0x5016 #define OV5648_ISP_MAN_INPUT_Y_L_REG 0x5017 #define OV5648_ISP_CTRL18_REG 0x5018 #define OV5648_ISP_CTRL19_REG 0x5019 #define OV5648_ISP_CTRL1A_REG 0x501a #define OV5648_ISP_CTRL1D_REG 0x501d #define OV5648_ISP_CTRL1F_REG 0x501f #define OV5648_ISP_CTRL1F_OUTPUT_EN 3 #define OV5648_ISP_CTRL25_REG 0x5025 #define OV5648_ISP_CTRL3D_REG 0x503d #define OV5648_ISP_CTRL3D_PATTERN_EN BIT(7) #define OV5648_ISP_CTRL3D_ROLLING_BAR_EN BIT(6) #define OV5648_ISP_CTRL3D_TRANSPARENT_MODE BIT(5) #define OV5648_ISP_CTRL3D_SQUARES_BW_MODE BIT(4) #define OV5648_ISP_CTRL3D_PATTERN_COLOR_BARS 0 #define OV5648_ISP_CTRL3D_PATTERN_RANDOM_DATA 1 #define OV5648_ISP_CTRL3D_PATTERN_COLOR_SQUARES 2 #define OV5648_ISP_CTRL3D_PATTERN_INPUT 3 #define OV5648_ISP_CTRL3E_REG 0x503e #define OV5648_ISP_CTRL4B_REG 0x504b #define OV5648_ISP_CTRL4B_POST_BIN_H_EN BIT(5) #define OV5648_ISP_CTRL4B_POST_BIN_V_EN BIT(4) #define OV5648_ISP_CTRL4C_REG 0x504c #define OV5648_ISP_CTRL57_REG 0x5057 #define OV5648_ISP_CTRL58_REG 0x5058 #define OV5648_ISP_CTRL59_REG 0x5059 #define OV5648_ISP_WINDOW_START_X_H_REG 0x5980 #define OV5648_ISP_WINDOW_START_X_L_REG 0x5981 #define OV5648_ISP_WINDOW_START_Y_H_REG 0x5982 #define OV5648_ISP_WINDOW_START_Y_L_REG 0x5983 #define OV5648_ISP_WINDOW_WIN_X_H_REG 0x5984 #define OV5648_ISP_WINDOW_WIN_X_L_REG 0x5985 #define OV5648_ISP_WINDOW_WIN_Y_H_REG 0x5986 #define OV5648_ISP_WINDOW_WIN_Y_L_REG 0x5987 #define OV5648_ISP_WINDOW_MAN_REG 0x5988 /* White Balance */ #define OV5648_AWB_CTRL_REG 0x5180 #define OV5648_AWB_CTRL_FAST_AWB BIT(6) #define OV5648_AWB_CTRL_GAIN_FREEZE_EN BIT(5) #define OV5648_AWB_CTRL_SUM_FREEZE_EN BIT(4) #define OV5648_AWB_CTRL_GAIN_MANUAL_EN BIT(3) #define OV5648_AWB_DELTA_REG 0x5181 #define OV5648_AWB_STABLE_RANGE_REG 0x5182 #define OV5648_AWB_STABLE_RANGE_WIDE_REG 0x5183 #define OV5648_HSIZE_MAN_REG 0x5185 #define OV5648_GAIN_RED_MAN_H_REG 0x5186 #define OV5648_GAIN_RED_MAN_H(v) (((v) & GENMASK(11, 8)) >> 8) #define OV5648_GAIN_RED_MAN_L_REG 0x5187 #define OV5648_GAIN_RED_MAN_L(v) ((v) & GENMASK(7, 0)) #define OV5648_GAIN_GREEN_MAN_H_REG 0x5188 #define OV5648_GAIN_GREEN_MAN_H(v) (((v) & GENMASK(11, 8)) >> 8) #define OV5648_GAIN_GREEN_MAN_L_REG 0x5189 #define OV5648_GAIN_GREEN_MAN_L(v) ((v) & GENMASK(7, 0)) #define OV5648_GAIN_BLUE_MAN_H_REG 0x518a #define OV5648_GAIN_BLUE_MAN_H(v) (((v) & GENMASK(11, 8)) >> 8) #define OV5648_GAIN_BLUE_MAN_L_REG 0x518b #define OV5648_GAIN_BLUE_MAN_L(v) ((v) & GENMASK(7, 0)) #define OV5648_GAIN_RED_LIMIT_REG 0x518c #define OV5648_GAIN_GREEN_LIMIT_REG 0x518d #define OV5648_GAIN_BLUE_LIMIT_REG 0x518e #define OV5648_AWB_FRAME_COUNT_REG 0x518f #define OV5648_AWB_BASE_MAN_REG 0x51df /* Macros */ #define ov5648_subdev_sensor(s) \ container_of(s, struct ov5648_sensor, subdev) #define ov5648_ctrl_subdev(c) \ (&container_of((c)->handler, struct ov5648_sensor, \ ctrls.handler)->subdev) /* Data structures */ struct ov5648_register_value { u16 address; u8 value; unsigned int delay_ms; }; /* * PLL1 Clock Tree: * * +-< XVCLK * | * +-+ pll_pre_div (0x3037 [3:0], special values: 5: 1.5, 7: 2.5) * | * +-+ pll_mul (0x3036 [7:0]) * | * +-+ sys_div (0x3035 [7:4]) * | * +-+ mipi_div (0x3035 [3:0]) * | | * | +-> MIPI_SCLK * | | * | +-+ mipi_phy_div (2) * | | * | +-> MIPI_CLK * | * +-+ root_div (0x3037 [4]) * | * +-+ bit_div (0x3034 [3:0], 8 bits: 2, 10 bits: 2.5, other: 1) * | * +-+ sclk_div (0x3106 [3:2]) * | * +-> SCLK * | * +-+ mipi_div (0x3035, 1: PCLK = SCLK) * | * +-> PCLK */ struct ov5648_pll1_config { unsigned int pll_pre_div; unsigned int pll_mul; unsigned int sys_div; unsigned int root_div; unsigned int sclk_div; unsigned int mipi_div; }; /* * PLL2 Clock Tree: * * +-< XVCLK * | * +-+ plls_pre_div (0x303d [5:4], special values: 0: 1, 1: 1.5) * | * +-+ plls_div_r (0x303d [2]) * | * +-+ plls_mul (0x303b [4:0]) * | * +-+ sys_div (0x303c [3:0]) * | * +-+ sel_div (0x303d [1:0], special values: 0: 1, 3: 2.5) * | * +-> ADCLK */ struct ov5648_pll2_config { unsigned int plls_pre_div; unsigned int plls_div_r; unsigned int plls_mul; unsigned int sys_div; unsigned int sel_div; }; /* * General formulas for (array-centered) mode calculation: * - photo_array_width = 2624 * - crop_start_x = (photo_array_width - output_size_x) / 2 * - crop_end_x = crop_start_x + offset_x + output_size_x - 1 * * - photo_array_height = 1956 * - crop_start_y = (photo_array_height - output_size_y) / 2 * - crop_end_y = crop_start_y + offset_y + output_size_y - 1 */ struct ov5648_mode { unsigned int crop_start_x; unsigned int offset_x; unsigned int output_size_x; unsigned int crop_end_x; unsigned int hts; unsigned int crop_start_y; unsigned int offset_y; unsigned int output_size_y; unsigned int crop_end_y; unsigned int vts; bool binning_x; bool binning_y; unsigned int inc_x_odd; unsigned int inc_x_even; unsigned int inc_y_odd; unsigned int inc_y_even; /* 8-bit frame interval followed by 10-bit frame interval. */ struct v4l2_fract frame_interval[2]; /* 8-bit config followed by 10-bit config. */ const struct ov5648_pll1_config *pll1_config[2]; const struct ov5648_pll2_config *pll2_config; const struct ov5648_register_value *register_values; unsigned int register_values_count; }; struct ov5648_state { const struct ov5648_mode *mode; u32 mbus_code; bool streaming; }; struct ov5648_ctrls { struct v4l2_ctrl *exposure_auto; struct v4l2_ctrl *exposure; struct v4l2_ctrl *gain_auto; struct v4l2_ctrl *gain; struct v4l2_ctrl *white_balance_auto; struct v4l2_ctrl *red_balance; struct v4l2_ctrl *blue_balance; struct v4l2_ctrl *link_freq; struct v4l2_ctrl *pixel_rate; struct v4l2_ctrl_handler handler; }; struct ov5648_sensor { struct device *dev; struct i2c_client *i2c_client; struct gpio_desc *reset; struct gpio_desc *powerdown; struct regulator *avdd; struct regulator *dvdd; struct regulator *dovdd; struct clk *xvclk; struct v4l2_fwnode_endpoint endpoint; struct v4l2_subdev subdev; struct media_pad pad; struct mutex mutex; struct ov5648_state state; struct ov5648_ctrls ctrls; }; /* Static definitions */ /* * XVCLK = 24 MHz * SCLK = 84 MHz * PCLK = 84 MHz */ static const struct ov5648_pll1_config ov5648_pll1_config_native_8_bits = { .pll_pre_div = 3, .pll_mul = 84, .sys_div = 2, .root_div = 1, .sclk_div = 1, .mipi_div = 1, }; /* * XVCLK = 24 MHz * SCLK = 84 MHz * PCLK = 84 MHz */ static const struct ov5648_pll1_config ov5648_pll1_config_native_10_bits = { .pll_pre_div = 3, .pll_mul = 105, .sys_div = 2, .root_div = 1, .sclk_div = 1, .mipi_div = 1, }; /* * XVCLK = 24 MHz * ADCLK = 200 MHz */ static const struct ov5648_pll2_config ov5648_pll2_config_native = { .plls_pre_div = 3, .plls_div_r = 1, .plls_mul = 25, .sys_div = 1, .sel_div = 1, }; static const struct ov5648_mode ov5648_modes[] = { /* 2592x1944 */ { /* Horizontal */ .crop_start_x = 16, .offset_x = 0, .output_size_x = 2592, .crop_end_x = 2607, .hts = 2816, /* Vertical */ .crop_start_y = 6, .offset_y = 0, .output_size_y = 1944, .crop_end_y = 1949, .vts = 1984, /* Subsample increase */ .inc_x_odd = 1, .inc_x_even = 1, .inc_y_odd = 1, .inc_y_even = 1, /* Frame Interval */ .frame_interval = { { 1, 15 }, { 1, 15 }, }, /* PLL */ .pll1_config = { &ov5648_pll1_config_native_8_bits, &ov5648_pll1_config_native_10_bits, }, .pll2_config = &ov5648_pll2_config_native, }, /* 1600x1200 (UXGA) */ { /* Horizontal */ .crop_start_x = 512, .offset_x = 0, .output_size_x = 1600, .crop_end_x = 2111, .hts = 2816, /* Vertical */ .crop_start_y = 378, .offset_y = 0, .output_size_y = 1200, .crop_end_y = 1577, .vts = 1984, /* Subsample increase */ .inc_x_odd = 1, .inc_x_even = 1, .inc_y_odd = 1, .inc_y_even = 1, /* Frame Interval */ .frame_interval = { { 1, 15 }, { 1, 15 }, }, /* PLL */ .pll1_config = { &ov5648_pll1_config_native_8_bits, &ov5648_pll1_config_native_10_bits, }, .pll2_config = &ov5648_pll2_config_native, }, /* 1920x1080 (Full HD) */ { /* Horizontal */ .crop_start_x = 352, .offset_x = 0, .output_size_x = 1920, .crop_end_x = 2271, .hts = 2816, /* Vertical */ .crop_start_y = 438, .offset_y = 0, .output_size_y = 1080, .crop_end_y = 1517, .vts = 1984, /* Subsample increase */ .inc_x_odd = 1, .inc_x_even = 1, .inc_y_odd = 1, .inc_y_even = 1, /* Frame Interval */ .frame_interval = { { 1, 15 }, { 1, 15 }, }, /* PLL */ .pll1_config = { &ov5648_pll1_config_native_8_bits, &ov5648_pll1_config_native_10_bits, }, .pll2_config = &ov5648_pll2_config_native, }, /* 1280x960 */ { /* Horizontal */ .crop_start_x = 16, .offset_x = 8, .output_size_x = 1280, .crop_end_x = 2607, .hts = 1912, /* Vertical */ .crop_start_y = 6, .offset_y = 6, .output_size_y = 960, .crop_end_y = 1949, .vts = 1496, /* Binning */ .binning_x = true, /* Subsample increase */ .inc_x_odd = 3, .inc_x_even = 1, .inc_y_odd = 3, .inc_y_even = 1, /* Frame Interval */ .frame_interval = { { 1, 30 }, { 1, 30 }, }, /* PLL */ .pll1_config = { &ov5648_pll1_config_native_8_bits, &ov5648_pll1_config_native_10_bits, }, .pll2_config = &ov5648_pll2_config_native, }, /* 1280x720 (HD) */ { /* Horizontal */ .crop_start_x = 16, .offset_x = 8, .output_size_x = 1280, .crop_end_x = 2607, .hts = 1912, /* Vertical */ .crop_start_y = 254, .offset_y = 2, .output_size_y = 720, .crop_end_y = 1701, .vts = 1496, /* Binning */ .binning_x = true, /* Subsample increase */ .inc_x_odd = 3, .inc_x_even = 1, .inc_y_odd = 3, .inc_y_even = 1, /* Frame Interval */ .frame_interval = { { 1, 30 }, { 1, 30 }, }, /* PLL */ .pll1_config = { &ov5648_pll1_config_native_8_bits, &ov5648_pll1_config_native_10_bits, }, .pll2_config = &ov5648_pll2_config_native, }, /* 640x480 (VGA) */ { /* Horizontal */ .crop_start_x = 0, .offset_x = 8, .output_size_x = 640, .crop_end_x = 2623, .hts = 1896, /* Vertical */ .crop_start_y = 0, .offset_y = 2, .output_size_y = 480, .crop_end_y = 1953, .vts = 984, /* Binning */ .binning_x = true, /* Subsample increase */ .inc_x_odd = 7, .inc_x_even = 1, .inc_y_odd = 7, .inc_y_even = 1, /* Frame Interval */ .frame_interval = { { 1, 30 }, { 1, 30 }, }, /* PLL */ .pll1_config = { &ov5648_pll1_config_native_8_bits, &ov5648_pll1_config_native_10_bits, }, .pll2_config = &ov5648_pll2_config_native, }, }; static const u32 ov5648_mbus_codes[] = { MEDIA_BUS_FMT_SBGGR8_1X8, MEDIA_BUS_FMT_SBGGR10_1X10, }; static const struct ov5648_register_value ov5648_init_sequence[] = { /* PSRAM */ { OV5648_PSRAM_CTRL1_REG, 0x0d }, { OV5648_PSRAM_CTRLF_REG, 0xf5 }, }; static const s64 ov5648_link_freq_menu[] = { 210000000, 168000000, }; static const char *const ov5648_test_pattern_menu[] = { "Disabled", "Random data", "Color bars", "Color bars with rolling bar", "Color squares", "Color squares with rolling bar" }; static const u8 ov5648_test_pattern_bits[] = { 0, OV5648_ISP_CTRL3D_PATTERN_EN | OV5648_ISP_CTRL3D_PATTERN_RANDOM_DATA, OV5648_ISP_CTRL3D_PATTERN_EN | OV5648_ISP_CTRL3D_PATTERN_COLOR_BARS, OV5648_ISP_CTRL3D_PATTERN_EN | OV5648_ISP_CTRL3D_ROLLING_BAR_EN | OV5648_ISP_CTRL3D_PATTERN_COLOR_BARS, OV5648_ISP_CTRL3D_PATTERN_EN | OV5648_ISP_CTRL3D_PATTERN_COLOR_SQUARES, OV5648_ISP_CTRL3D_PATTERN_EN | OV5648_ISP_CTRL3D_ROLLING_BAR_EN | OV5648_ISP_CTRL3D_PATTERN_COLOR_SQUARES, }; /* Input/Output */ static int ov5648_read(struct ov5648_sensor *sensor, u16 address, u8 *value) { unsigned char data[2] = { address >> 8, address & 0xff }; struct i2c_client *client = sensor->i2c_client; int ret; ret = i2c_master_send(client, data, sizeof(data)); if (ret < 0) { dev_dbg(&client->dev, "i2c send error at address %#04x\n", address); return ret; } ret = i2c_master_recv(client, value, 1); if (ret < 0) { dev_dbg(&client->dev, "i2c recv error at address %#04x\n", address); return ret; } return 0; } static int ov5648_write(struct ov5648_sensor *sensor, u16 address, u8 value) { unsigned char data[3] = { address >> 8, address & 0xff, value }; struct i2c_client *client = sensor->i2c_client; int ret; ret = i2c_master_send(client, data, sizeof(data)); if (ret < 0) { dev_dbg(&client->dev, "i2c send error at address %#04x\n", address); return ret; } return 0; } static int ov5648_write_sequence(struct ov5648_sensor *sensor, const struct ov5648_register_value *sequence, unsigned int sequence_count) { unsigned int i; int ret = 0; for (i = 0; i < sequence_count; i++) { ret = ov5648_write(sensor, sequence[i].address, sequence[i].value); if (ret) break; if (sequence[i].delay_ms) msleep(sequence[i].delay_ms); } return ret; } static int ov5648_update_bits(struct ov5648_sensor *sensor, u16 address, u8 mask, u8 bits) { u8 value = 0; int ret; ret = ov5648_read(sensor, address, &value); if (ret) return ret; value &= ~mask; value |= bits; ret = ov5648_write(sensor, address, value); if (ret) return ret; return 0; } /* Sensor */ static int ov5648_sw_reset(struct ov5648_sensor *sensor) { return ov5648_write(sensor, OV5648_SW_RESET_REG, OV5648_SW_RESET_RESET); } static int ov5648_sw_standby(struct ov5648_sensor *sensor, int standby) { u8 value = 0; if (!standby) value = OV5648_SW_STANDBY_STREAM_ON; return ov5648_write(sensor, OV5648_SW_STANDBY_REG, value); } static int ov5648_chip_id_check(struct ov5648_sensor *sensor) { u16 regs[] = { OV5648_CHIP_ID_H_REG, OV5648_CHIP_ID_L_REG }; u8 values[] = { OV5648_CHIP_ID_H_VALUE, OV5648_CHIP_ID_L_VALUE }; unsigned int i; u8 value; int ret; for (i = 0; i < ARRAY_SIZE(regs); i++) { ret = ov5648_read(sensor, regs[i], &value); if (ret < 0) return ret; if (value != values[i]) { dev_err(sensor->dev, "chip id value mismatch: %#x instead of %#x\n", value, values[i]); return -EINVAL; } } return 0; } static int ov5648_avdd_internal_power(struct ov5648_sensor *sensor, int on) { return ov5648_write(sensor, OV5648_A_PWC_PK_O0_REG, on ? 0 : OV5648_A_PWC_PK_O0_BP_REGULATOR_N); } static int ov5648_pad_configure(struct ov5648_sensor *sensor) { int ret; /* Configure pads as input. */ ret = ov5648_write(sensor, OV5648_PAD_OEN1_REG, 0); if (ret) return ret; ret = ov5648_write(sensor, OV5648_PAD_OEN2_REG, 0); if (ret) return ret; /* Disable FREX pin. */ return ov5648_write(sensor, OV5648_PAD_PK_REG, OV5648_PAD_PK_DRIVE_STRENGTH_1X | OV5648_PAD_PK_FREX_N); } static int ov5648_mipi_configure(struct ov5648_sensor *sensor) { struct v4l2_mbus_config_mipi_csi2 *bus_mipi_csi2 = &sensor->endpoint.bus.mipi_csi2; unsigned int lanes_count = bus_mipi_csi2->num_data_lanes; int ret; ret = ov5648_write(sensor, OV5648_MIPI_CTRL0_REG, OV5648_MIPI_CTRL0_CLK_LANE_AUTOGATE | OV5648_MIPI_CTRL0_LANE_SELECT_LANE1 | OV5648_MIPI_CTRL0_IDLE_LP11); if (ret) return ret; return ov5648_write(sensor, OV5648_MIPI_SC_CTRL0_REG, OV5648_MIPI_SC_CTRL0_MIPI_LANES(lanes_count) | OV5648_MIPI_SC_CTRL0_PHY_LP_RX_PD | OV5648_MIPI_SC_CTRL0_MIPI_EN); } static int ov5648_black_level_configure(struct ov5648_sensor *sensor) { int ret; /* Up to 6 lines are available for black level calibration. */ ret = ov5648_write(sensor, OV5648_BLC_CTRL1_REG, OV5648_BLC_CTRL1_START_LINE(2)); if (ret) return ret; ret = ov5648_write(sensor, OV5648_BLC_CTRL2_REG, OV5648_BLC_CTRL2_AUTO_EN | OV5648_BLC_CTRL2_RESET_FRAME_NUM(5)); if (ret) return ret; ret = ov5648_write(sensor, OV5648_BLC_LINE_NUM_REG, OV5648_BLC_LINE_NUM(4)); if (ret) return ret; return ov5648_update_bits(sensor, OV5648_BLC_CTRL5_REG, OV5648_BLC_CTRL5_UPDATE_EN, OV5648_BLC_CTRL5_UPDATE_EN); } static int ov5648_isp_configure(struct ov5648_sensor *sensor) { u8 bits; int ret; /* Enable black and white level correction. */ bits = OV5648_ISP_CTRL0_BLACK_CORRECT_EN | OV5648_ISP_CTRL0_WHITE_CORRECT_EN; ret = ov5648_update_bits(sensor, OV5648_ISP_CTRL0_REG, bits, bits); if (ret) return ret; /* Enable AWB. */ ret = ov5648_write(sensor, OV5648_ISP_CTRL1_REG, OV5648_ISP_CTRL1_AWB_EN); if (ret) return ret; /* Enable AWB gain and windowing. */ ret = ov5648_write(sensor, OV5648_ISP_CTRL2_REG, OV5648_ISP_CTRL2_WIN_EN | OV5648_ISP_CTRL2_AWB_GAIN_EN); if (ret) return ret; /* Enable buffering and auto-binning. */ ret = ov5648_write(sensor, OV5648_ISP_CTRL3_REG, OV5648_ISP_CTRL3_BUF_EN | OV5648_ISP_CTRL3_BIN_AUTO_EN); if (ret) return ret; ret = ov5648_write(sensor, OV5648_ISP_CTRL4_REG, 0); if (ret) return ret; ret = ov5648_write(sensor, OV5648_ISP_CTRL1F_REG, OV5648_ISP_CTRL1F_OUTPUT_EN); if (ret) return ret; /* Enable post-binning filters. */ ret = ov5648_write(sensor, OV5648_ISP_CTRL4B_REG, OV5648_ISP_CTRL4B_POST_BIN_H_EN | OV5648_ISP_CTRL4B_POST_BIN_V_EN); if (ret) return ret; /* Disable debanding and night mode. Debug bit seems necessary. */ ret = ov5648_write(sensor, OV5648_AEC_CTRL0_REG, OV5648_AEC_CTRL0_DEBUG | OV5648_AEC_CTRL0_START_SEL_EN); if (ret) return ret; return ov5648_write(sensor, OV5648_MANUAL_CTRL_REG, OV5648_MANUAL_CTRL_FRAME_DELAY(1)); } static unsigned long ov5648_mode_pll1_rate(struct ov5648_sensor *sensor, const struct ov5648_pll1_config *config) { unsigned long xvclk_rate; unsigned long pll1_rate; xvclk_rate = clk_get_rate(sensor->xvclk); pll1_rate = xvclk_rate * config->pll_mul; switch (config->pll_pre_div) { case 5: pll1_rate *= 3; pll1_rate /= 2; break; case 7: pll1_rate *= 5; pll1_rate /= 2; break; default: pll1_rate /= config->pll_pre_div; break; } return pll1_rate; } static int ov5648_mode_pll1_configure(struct ov5648_sensor *sensor, const struct ov5648_mode *mode, u32 mbus_code) { const struct ov5648_pll1_config *config; u8 value; int ret; value = OV5648_PLL_CTRL0_PLL_CHARGE_PUMP(1); switch (mbus_code) { case MEDIA_BUS_FMT_SBGGR8_1X8: config = mode->pll1_config[0]; value |= OV5648_PLL_CTRL0_BITS(8); break; case MEDIA_BUS_FMT_SBGGR10_1X10: config = mode->pll1_config[1]; value |= OV5648_PLL_CTRL0_BITS(10); break; default: return -EINVAL; } ret = ov5648_write(sensor, OV5648_PLL_CTRL0_REG, value); if (ret) return ret; ret = ov5648_write(sensor, OV5648_PLL_DIV_REG, OV5648_PLL_DIV_ROOT_DIV(config->root_div) | OV5648_PLL_DIV_PLL_PRE_DIV(config->pll_pre_div)); if (ret) return ret; ret = ov5648_write(sensor, OV5648_PLL_MUL_REG, OV5648_PLL_MUL(config->pll_mul)); if (ret) return ret; ret = ov5648_write(sensor, OV5648_PLL_CTRL1_REG, OV5648_PLL_CTRL1_SYS_DIV(config->sys_div) | OV5648_PLL_CTRL1_MIPI_DIV(config->mipi_div)); if (ret) return ret; return ov5648_write(sensor, OV5648_SRB_CTRL_REG, OV5648_SRB_CTRL_SCLK_DIV(config->sclk_div) | OV5648_SRB_CTRL_SCLK_ARBITER_EN); } static int ov5648_mode_pll2_configure(struct ov5648_sensor *sensor, const struct ov5648_mode *mode) { const struct ov5648_pll2_config *config = mode->pll2_config; int ret; ret = ov5648_write(sensor, OV5648_PLLS_DIV_REG, OV5648_PLLS_DIV_PLLS_PRE_DIV(config->plls_pre_div) | OV5648_PLLS_DIV_PLLS_DIV_R(config->plls_div_r) | OV5648_PLLS_DIV_PLLS_SEL_DIV(config->sel_div)); if (ret) return ret; ret = ov5648_write(sensor, OV5648_PLLS_MUL_REG, OV5648_PLLS_MUL(config->plls_mul)); if (ret) return ret; return ov5648_write(sensor, OV5648_PLLS_CTRL_REG, OV5648_PLLS_CTRL_PLL_CHARGE_PUMP(1) | OV5648_PLLS_CTRL_SYS_DIV(config->sys_div)); } static int ov5648_mode_configure(struct ov5648_sensor *sensor, const struct ov5648_mode *mode, u32 mbus_code) { int ret; /* Crop Start X */ ret = ov5648_write(sensor, OV5648_CROP_START_X_H_REG, OV5648_CROP_START_X_H(mode->crop_start_x)); if (ret) return ret; ret = ov5648_write(sensor, OV5648_CROP_START_X_L_REG, OV5648_CROP_START_X_L(mode->crop_start_x)); if (ret) return ret; /* Offset X */ ret = ov5648_write(sensor, OV5648_OFFSET_X_H_REG, OV5648_OFFSET_X_H(mode->offset_x)); if (ret) return ret; ret = ov5648_write(sensor, OV5648_OFFSET_X_L_REG, OV5648_OFFSET_X_L(mode->offset_x)); if (ret) return ret; /* Output Size X */ ret = ov5648_write(sensor, OV5648_OUTPUT_SIZE_X_H_REG, OV5648_OUTPUT_SIZE_X_H(mode->output_size_x)); if (ret) return ret; ret = ov5648_write(sensor, OV5648_OUTPUT_SIZE_X_L_REG, OV5648_OUTPUT_SIZE_X_L(mode->output_size_x)); if (ret) return ret; /* Crop End X */ ret = ov5648_write(sensor, OV5648_CROP_END_X_H_REG, OV5648_CROP_END_X_H(mode->crop_end_x)); if (ret) return ret; ret = ov5648_write(sensor, OV5648_CROP_END_X_L_REG, OV5648_CROP_END_X_L(mode->crop_end_x)); if (ret) return ret; /* Horizontal Total Size */ ret = ov5648_write(sensor, OV5648_HTS_H_REG, OV5648_HTS_H(mode->hts)); if (ret) return ret; ret = ov5648_write(sensor, OV5648_HTS_L_REG, OV5648_HTS_L(mode->hts)); if (ret) return ret; /* Crop Start Y */ ret = ov5648_write(sensor, OV5648_CROP_START_Y_H_REG, OV5648_CROP_START_Y_H(mode->crop_start_y)); if (ret) return ret; ret = ov5648_write(sensor, OV5648_CROP_START_Y_L_REG, OV5648_CROP_START_Y_L(mode->crop_start_y)); if (ret) return ret; /* Offset Y */ ret = ov5648_write(sensor, OV5648_OFFSET_Y_H_REG, OV5648_OFFSET_Y_H(mode->offset_y)); if (ret) return ret; ret = ov5648_write(sensor, OV5648_OFFSET_Y_L_REG, OV5648_OFFSET_Y_L(mode->offset_y)); if (ret) return ret; /* Output Size Y */ ret = ov5648_write(sensor, OV5648_OUTPUT_SIZE_Y_H_REG, OV5648_OUTPUT_SIZE_Y_H(mode->output_size_y)); if (ret) return ret; ret = ov5648_write(sensor, OV5648_OUTPUT_SIZE_Y_L_REG, OV5648_OUTPUT_SIZE_Y_L(mode->output_size_y)); if (ret) return ret; /* Crop End Y */ ret = ov5648_write(sensor, OV5648_CROP_END_Y_H_REG, OV5648_CROP_END_Y_H(mode->crop_end_y)); if (ret) return ret; ret = ov5648_write(sensor, OV5648_CROP_END_Y_L_REG, OV5648_CROP_END_Y_L(mode->crop_end_y)); if (ret) return ret; /* Vertical Total Size */ ret = ov5648_write(sensor, OV5648_VTS_H_REG, OV5648_VTS_H(mode->vts)); if (ret) return ret; ret = ov5648_write(sensor, OV5648_VTS_L_REG, OV5648_VTS_L(mode->vts)); if (ret) return ret; /* Flip/Mirror/Binning */ /* * A debug bit is enabled by default and needs to be cleared for * subsampling to work. */ ret = ov5648_update_bits(sensor, OV5648_TC20_REG, OV5648_TC20_DEBUG | OV5648_TC20_BINNING_VERT_EN, mode->binning_y ? OV5648_TC20_BINNING_VERT_EN : 0); if (ret) return ret; ret = ov5648_update_bits(sensor, OV5648_TC21_REG, OV5648_TC21_BINNING_HORZ_EN, mode->binning_x ? OV5648_TC21_BINNING_HORZ_EN : 0); if (ret) return ret; ret = ov5648_write(sensor, OV5648_SUB_INC_X_REG, OV5648_SUB_INC_X_ODD(mode->inc_x_odd) | OV5648_SUB_INC_X_EVEN(mode->inc_x_even)); if (ret) return ret; ret = ov5648_write(sensor, OV5648_SUB_INC_Y_REG, OV5648_SUB_INC_Y_ODD(mode->inc_y_odd) | OV5648_SUB_INC_Y_EVEN(mode->inc_y_even)); if (ret) return ret; /* PLLs */ ret = ov5648_mode_pll1_configure(sensor, mode, mbus_code); if (ret) return ret; ret = ov5648_mode_pll2_configure(sensor, mode); if (ret) return ret; /* Extra registers */ if (mode->register_values) { ret = ov5648_write_sequence(sensor, mode->register_values, mode->register_values_count); if (ret) return ret; } return 0; } static unsigned long ov5648_mode_mipi_clk_rate(struct ov5648_sensor *sensor, const struct ov5648_mode *mode, u32 mbus_code) { const struct ov5648_pll1_config *config; unsigned long pll1_rate; switch (mbus_code) { case MEDIA_BUS_FMT_SBGGR8_1X8: config = mode->pll1_config[0]; break; case MEDIA_BUS_FMT_SBGGR10_1X10: config = mode->pll1_config[1]; break; default: return 0; } pll1_rate = ov5648_mode_pll1_rate(sensor, config); return pll1_rate / config->sys_div / config->mipi_div / 2; } /* Exposure */ static int ov5648_exposure_auto_configure(struct ov5648_sensor *sensor, bool enable) { return ov5648_update_bits(sensor, OV5648_MANUAL_CTRL_REG, OV5648_MANUAL_CTRL_AEC_MANUAL_EN, enable ? 0 : OV5648_MANUAL_CTRL_AEC_MANUAL_EN); } static int ov5648_exposure_configure(struct ov5648_sensor *sensor, u32 exposure) { struct ov5648_ctrls *ctrls = &sensor->ctrls; int ret; if (ctrls->exposure_auto->val != V4L2_EXPOSURE_MANUAL) return -EINVAL; ret = ov5648_write(sensor, OV5648_EXPOSURE_CTRL_HH_REG, OV5648_EXPOSURE_CTRL_HH(exposure)); if (ret) return ret; ret = ov5648_write(sensor, OV5648_EXPOSURE_CTRL_H_REG, OV5648_EXPOSURE_CTRL_H(exposure)); if (ret) return ret; return ov5648_write(sensor, OV5648_EXPOSURE_CTRL_L_REG, OV5648_EXPOSURE_CTRL_L(exposure)); } static int ov5648_exposure_value(struct ov5648_sensor *sensor, u32 *exposure) { u8 exposure_hh = 0, exposure_h = 0, exposure_l = 0; int ret; ret = ov5648_read(sensor, OV5648_EXPOSURE_CTRL_HH_REG, &exposure_hh); if (ret) return ret; ret = ov5648_read(sensor, OV5648_EXPOSURE_CTRL_H_REG, &exposure_h); if (ret) return ret; ret = ov5648_read(sensor, OV5648_EXPOSURE_CTRL_L_REG, &exposure_l); if (ret) return ret; *exposure = OV5648_EXPOSURE_CTRL_HH_VALUE((u32)exposure_hh) | OV5648_EXPOSURE_CTRL_H_VALUE((u32)exposure_h) | OV5648_EXPOSURE_CTRL_L_VALUE((u32)exposure_l); return 0; } /* Gain */ static int ov5648_gain_auto_configure(struct ov5648_sensor *sensor, bool enable) { return ov5648_update_bits(sensor, OV5648_MANUAL_CTRL_REG, OV5648_MANUAL_CTRL_AGC_MANUAL_EN, enable ? 0 : OV5648_MANUAL_CTRL_AGC_MANUAL_EN); } static int ov5648_gain_configure(struct ov5648_sensor *sensor, u32 gain) { struct ov5648_ctrls *ctrls = &sensor->ctrls; int ret; if (ctrls->gain_auto->val) return -EINVAL; ret = ov5648_write(sensor, OV5648_GAIN_CTRL_H_REG, OV5648_GAIN_CTRL_H(gain)); if (ret) return ret; return ov5648_write(sensor, OV5648_GAIN_CTRL_L_REG, OV5648_GAIN_CTRL_L(gain)); } static int ov5648_gain_value(struct ov5648_sensor *sensor, u32 *gain) { u8 gain_h = 0, gain_l = 0; int ret; ret = ov5648_read(sensor, OV5648_GAIN_CTRL_H_REG, &gain_h); if (ret) return ret; ret = ov5648_read(sensor, OV5648_GAIN_CTRL_L_REG, &gain_l); if (ret) return ret; *gain = OV5648_GAIN_CTRL_H_VALUE((u32)gain_h) | OV5648_GAIN_CTRL_L_VALUE((u32)gain_l); return 0; } /* White Balance */ static int ov5648_white_balance_auto_configure(struct ov5648_sensor *sensor, bool enable) { return ov5648_write(sensor, OV5648_AWB_CTRL_REG, enable ? 0 : OV5648_AWB_CTRL_GAIN_MANUAL_EN); } static int ov5648_white_balance_configure(struct ov5648_sensor *sensor, u32 red_balance, u32 blue_balance) { struct ov5648_ctrls *ctrls = &sensor->ctrls; int ret; if (ctrls->white_balance_auto->val) return -EINVAL; ret = ov5648_write(sensor, OV5648_GAIN_RED_MAN_H_REG, OV5648_GAIN_RED_MAN_H(red_balance)); if (ret) return ret; ret = ov5648_write(sensor, OV5648_GAIN_RED_MAN_L_REG, OV5648_GAIN_RED_MAN_L(red_balance)); if (ret) return ret; ret = ov5648_write(sensor, OV5648_GAIN_BLUE_MAN_H_REG, OV5648_GAIN_BLUE_MAN_H(blue_balance)); if (ret) return ret; return ov5648_write(sensor, OV5648_GAIN_BLUE_MAN_L_REG, OV5648_GAIN_BLUE_MAN_L(blue_balance)); } /* Flip */ static int ov5648_flip_vert_configure(struct ov5648_sensor *sensor, bool enable) { u8 bits = OV5648_TC20_FLIP_VERT_ISP_EN | OV5648_TC20_FLIP_VERT_SENSOR_EN; return ov5648_update_bits(sensor, OV5648_TC20_REG, bits, enable ? bits : 0); } static int ov5648_flip_horz_configure(struct ov5648_sensor *sensor, bool enable) { u8 bits = OV5648_TC21_FLIP_HORZ_ISP_EN | OV5648_TC21_FLIP_HORZ_SENSOR_EN; return ov5648_update_bits(sensor, OV5648_TC21_REG, bits, enable ? bits : 0); } /* Test Pattern */ static int ov5648_test_pattern_configure(struct ov5648_sensor *sensor, unsigned int index) { if (index >= ARRAY_SIZE(ov5648_test_pattern_bits)) return -EINVAL; return ov5648_write(sensor, OV5648_ISP_CTRL3D_REG, ov5648_test_pattern_bits[index]); } /* State */ static int ov5648_state_mipi_configure(struct ov5648_sensor *sensor, const struct ov5648_mode *mode, u32 mbus_code) { struct ov5648_ctrls *ctrls = &sensor->ctrls; struct v4l2_mbus_config_mipi_csi2 *bus_mipi_csi2 = &sensor->endpoint.bus.mipi_csi2; unsigned long mipi_clk_rate; unsigned int bits_per_sample; unsigned int lanes_count; unsigned int i, j; s64 mipi_pixel_rate; mipi_clk_rate = ov5648_mode_mipi_clk_rate(sensor, mode, mbus_code); if (!mipi_clk_rate) return -EINVAL; for (i = 0; i < ARRAY_SIZE(ov5648_link_freq_menu); i++) { s64 freq = ov5648_link_freq_menu[i]; if (freq == mipi_clk_rate) break; } for (j = 0; j < sensor->endpoint.nr_of_link_frequencies; j++) { u64 freq = sensor->endpoint.link_frequencies[j]; if (freq == mipi_clk_rate) break; } if (i == ARRAY_SIZE(ov5648_link_freq_menu)) { dev_err(sensor->dev, "failed to find %lu clk rate in link freq\n", mipi_clk_rate); } else if (j == sensor->endpoint.nr_of_link_frequencies) { dev_err(sensor->dev, "failed to find %lu clk rate in endpoint link-frequencies\n", mipi_clk_rate); } else { __v4l2_ctrl_s_ctrl(ctrls->link_freq, i); } switch (mbus_code) { case MEDIA_BUS_FMT_SBGGR8_1X8: bits_per_sample = 8; break; case MEDIA_BUS_FMT_SBGGR10_1X10: bits_per_sample = 10; break; default: return -EINVAL; } lanes_count = bus_mipi_csi2->num_data_lanes; mipi_pixel_rate = mipi_clk_rate * 2 * lanes_count / bits_per_sample; __v4l2_ctrl_s_ctrl_int64(ctrls->pixel_rate, mipi_pixel_rate); return 0; } static int ov5648_state_configure(struct ov5648_sensor *sensor, const struct ov5648_mode *mode, u32 mbus_code) { int ret; if (sensor->state.streaming) return -EBUSY; /* State will be configured at first power on otherwise. */ if (pm_runtime_enabled(sensor->dev) && !pm_runtime_suspended(sensor->dev)) { ret = ov5648_mode_configure(sensor, mode, mbus_code); if (ret) return ret; } ret = ov5648_state_mipi_configure(sensor, mode, mbus_code); if (ret) return ret; sensor->state.mode = mode; sensor->state.mbus_code = mbus_code; return 0; } static int ov5648_state_init(struct ov5648_sensor *sensor) { int ret; mutex_lock(&sensor->mutex); ret = ov5648_state_configure(sensor, &ov5648_modes[0], ov5648_mbus_codes[0]); mutex_unlock(&sensor->mutex); return ret; } /* Sensor Base */ static int ov5648_sensor_init(struct ov5648_sensor *sensor) { int ret; ret = ov5648_sw_reset(sensor); if (ret) { dev_err(sensor->dev, "failed to perform sw reset\n"); return ret; } ret = ov5648_sw_standby(sensor, 1); if (ret) { dev_err(sensor->dev, "failed to set sensor standby\n"); return ret; } ret = ov5648_chip_id_check(sensor); if (ret) { dev_err(sensor->dev, "failed to check sensor chip id\n"); return ret; } ret = ov5648_avdd_internal_power(sensor, !sensor->avdd); if (ret) { dev_err(sensor->dev, "failed to set internal avdd power\n"); return ret; } ret = ov5648_write_sequence(sensor, ov5648_init_sequence, ARRAY_SIZE(ov5648_init_sequence)); if (ret) { dev_err(sensor->dev, "failed to write init sequence\n"); return ret; } ret = ov5648_pad_configure(sensor); if (ret) { dev_err(sensor->dev, "failed to configure pad\n"); return ret; } ret = ov5648_mipi_configure(sensor); if (ret) { dev_err(sensor->dev, "failed to configure MIPI\n"); return ret; } ret = ov5648_isp_configure(sensor); if (ret) { dev_err(sensor->dev, "failed to configure ISP\n"); return ret; } ret = ov5648_black_level_configure(sensor); if (ret) { dev_err(sensor->dev, "failed to configure black level\n"); return ret; } /* Configure current mode. */ ret = ov5648_state_configure(sensor, sensor->state.mode, sensor->state.mbus_code); if (ret) { dev_err(sensor->dev, "failed to configure state\n"); return ret; } return 0; } static int ov5648_sensor_power(struct ov5648_sensor *sensor, bool on) { /* Keep initialized to zero for disable label. */ int ret = 0; /* * General notes about the power sequence: * - power-down GPIO must be active (low) during power-on; * - reset GPIO state does not matter during power-on; * - XVCLK must be provided 1 ms before register access; * - 10 ms are needed between power-down deassert and register access. */ /* Note that regulator-and-GPIO-based power is untested. */ if (on) { gpiod_set_value_cansleep(sensor->reset, 1); gpiod_set_value_cansleep(sensor->powerdown, 1); ret = regulator_enable(sensor->dovdd); if (ret) { dev_err(sensor->dev, "failed to enable DOVDD regulator\n"); goto disable; } if (sensor->avdd) { ret = regulator_enable(sensor->avdd); if (ret) { dev_err(sensor->dev, "failed to enable AVDD regulator\n"); goto disable; } } ret = regulator_enable(sensor->dvdd); if (ret) { dev_err(sensor->dev, "failed to enable DVDD regulator\n"); goto disable; } /* According to OV5648 power up diagram. */ usleep_range(5000, 10000); ret = clk_prepare_enable(sensor->xvclk); if (ret) { dev_err(sensor->dev, "failed to enable XVCLK clock\n"); goto disable; } gpiod_set_value_cansleep(sensor->reset, 0); gpiod_set_value_cansleep(sensor->powerdown, 0); usleep_range(20000, 25000); } else { disable: gpiod_set_value_cansleep(sensor->powerdown, 1); gpiod_set_value_cansleep(sensor->reset, 1); clk_disable_unprepare(sensor->xvclk); regulator_disable(sensor->dvdd); if (sensor->avdd) regulator_disable(sensor->avdd); regulator_disable(sensor->dovdd); } return ret; } /* Controls */ static int ov5648_g_volatile_ctrl(struct v4l2_ctrl *ctrl) { struct v4l2_subdev *subdev = ov5648_ctrl_subdev(ctrl); struct ov5648_sensor *sensor = ov5648_subdev_sensor(subdev); struct ov5648_ctrls *ctrls = &sensor->ctrls; int ret; switch (ctrl->id) { case V4L2_CID_EXPOSURE_AUTO: ret = ov5648_exposure_value(sensor, &ctrls->exposure->val); if (ret) return ret; break; case V4L2_CID_AUTOGAIN: ret = ov5648_gain_value(sensor, &ctrls->gain->val); if (ret) return ret; break; default: return -EINVAL; } return 0; } static int ov5648_s_ctrl(struct v4l2_ctrl *ctrl) { struct v4l2_subdev *subdev = ov5648_ctrl_subdev(ctrl); struct ov5648_sensor *sensor = ov5648_subdev_sensor(subdev); struct ov5648_ctrls *ctrls = &sensor->ctrls; unsigned int index; bool enable; int ret; /* Wait for the sensor to be on before setting controls. */ if (pm_runtime_suspended(sensor->dev)) return 0; switch (ctrl->id) { case V4L2_CID_EXPOSURE_AUTO: enable = ctrl->val == V4L2_EXPOSURE_AUTO; ret = ov5648_exposure_auto_configure(sensor, enable); if (ret) return ret; if (!enable && ctrls->exposure->is_new) { ret = ov5648_exposure_configure(sensor, ctrls->exposure->val); if (ret) return ret; } break; case V4L2_CID_AUTOGAIN: enable = !!ctrl->val; ret = ov5648_gain_auto_configure(sensor, enable); if (ret) return ret; if (!enable) { ret = ov5648_gain_configure(sensor, ctrls->gain->val); if (ret) return ret; } break; case V4L2_CID_AUTO_WHITE_BALANCE: enable = !!ctrl->val; ret = ov5648_white_balance_auto_configure(sensor, enable); if (ret) return ret; if (!enable) { ret = ov5648_white_balance_configure(sensor, ctrls->red_balance->val, ctrls->blue_balance->val); if (ret) return ret; } break; case V4L2_CID_HFLIP: enable = !!ctrl->val; return ov5648_flip_horz_configure(sensor, enable); case V4L2_CID_VFLIP: enable = !!ctrl->val; return ov5648_flip_vert_configure(sensor, enable); case V4L2_CID_TEST_PATTERN: index = (unsigned int)ctrl->val; return ov5648_test_pattern_configure(sensor, index); default: return -EINVAL; } return 0; } static const struct v4l2_ctrl_ops ov5648_ctrl_ops = { .g_volatile_ctrl = ov5648_g_volatile_ctrl, .s_ctrl = ov5648_s_ctrl, }; static int ov5648_ctrls_init(struct ov5648_sensor *sensor) { struct ov5648_ctrls *ctrls = &sensor->ctrls; struct v4l2_ctrl_handler *handler = &ctrls->handler; const struct v4l2_ctrl_ops *ops = &ov5648_ctrl_ops; int ret; v4l2_ctrl_handler_init(handler, 32); /* Use our mutex for ctrl locking. */ handler->lock = &sensor->mutex; /* Exposure */ ctrls->exposure_auto = v4l2_ctrl_new_std_menu(handler, ops, V4L2_CID_EXPOSURE_AUTO, V4L2_EXPOSURE_MANUAL, 0, V4L2_EXPOSURE_AUTO); ctrls->exposure = v4l2_ctrl_new_std(handler, ops, V4L2_CID_EXPOSURE, 16, 1048575, 16, 512); v4l2_ctrl_auto_cluster(2, &ctrls->exposure_auto, 1, true); /* Gain */ ctrls->gain_auto = v4l2_ctrl_new_std(handler, ops, V4L2_CID_AUTOGAIN, 0, 1, 1, 1); ctrls->gain = v4l2_ctrl_new_std(handler, ops, V4L2_CID_GAIN, 16, 1023, 16, 16); v4l2_ctrl_auto_cluster(2, &ctrls->gain_auto, 0, true); /* White Balance */ ctrls->white_balance_auto = v4l2_ctrl_new_std(handler, ops, V4L2_CID_AUTO_WHITE_BALANCE, 0, 1, 1, 1); ctrls->red_balance = v4l2_ctrl_new_std(handler, ops, V4L2_CID_RED_BALANCE, 0, 4095, 1, 1024); ctrls->blue_balance = v4l2_ctrl_new_std(handler, ops, V4L2_CID_BLUE_BALANCE, 0, 4095, 1, 1024); v4l2_ctrl_auto_cluster(3, &ctrls->white_balance_auto, 0, false); /* Flip */ v4l2_ctrl_new_std(handler, ops, V4L2_CID_HFLIP, 0, 1, 1, 0); v4l2_ctrl_new_std(handler, ops, V4L2_CID_VFLIP, 0, 1, 1, 0); /* Test Pattern */ v4l2_ctrl_new_std_menu_items(handler, ops, V4L2_CID_TEST_PATTERN, ARRAY_SIZE(ov5648_test_pattern_menu) - 1, 0, 0, ov5648_test_pattern_menu); /* MIPI CSI-2 */ ctrls->link_freq = v4l2_ctrl_new_int_menu(handler, NULL, V4L2_CID_LINK_FREQ, ARRAY_SIZE(ov5648_link_freq_menu) - 1, 0, ov5648_link_freq_menu); ctrls->pixel_rate = v4l2_ctrl_new_std(handler, NULL, V4L2_CID_PIXEL_RATE, 1, INT_MAX, 1, 1); if (handler->error) { ret = handler->error; goto error_ctrls; } ctrls->exposure->flags |= V4L2_CTRL_FLAG_VOLATILE; ctrls->gain->flags |= V4L2_CTRL_FLAG_VOLATILE; ctrls->link_freq->flags |= V4L2_CTRL_FLAG_READ_ONLY; ctrls->pixel_rate->flags |= V4L2_CTRL_FLAG_READ_ONLY; sensor->subdev.ctrl_handler = handler; return 0; error_ctrls: v4l2_ctrl_handler_free(handler); return ret; } /* Subdev Video Operations */ static int ov5648_s_stream(struct v4l2_subdev *subdev, int enable) { struct ov5648_sensor *sensor = ov5648_subdev_sensor(subdev); struct ov5648_state *state = &sensor->state; int ret; if (enable) { ret = pm_runtime_resume_and_get(sensor->dev); if (ret < 0) return ret; } mutex_lock(&sensor->mutex); ret = ov5648_sw_standby(sensor, !enable); mutex_unlock(&sensor->mutex); if (ret) return ret; state->streaming = !!enable; if (!enable) pm_runtime_put(sensor->dev); return 0; } static int ov5648_g_frame_interval(struct v4l2_subdev *subdev, struct v4l2_subdev_frame_interval *interval) { struct ov5648_sensor *sensor = ov5648_subdev_sensor(subdev); const struct ov5648_mode *mode; int ret = 0; mutex_lock(&sensor->mutex); mode = sensor->state.mode; switch (sensor->state.mbus_code) { case MEDIA_BUS_FMT_SBGGR8_1X8: interval->interval = mode->frame_interval[0]; break; case MEDIA_BUS_FMT_SBGGR10_1X10: interval->interval = mode->frame_interval[1]; break; default: ret = -EINVAL; } mutex_unlock(&sensor->mutex); return ret; } static const struct v4l2_subdev_video_ops ov5648_subdev_video_ops = { .s_stream = ov5648_s_stream, .g_frame_interval = ov5648_g_frame_interval, .s_frame_interval = ov5648_g_frame_interval, }; /* Subdev Pad Operations */ static int ov5648_enum_mbus_code(struct v4l2_subdev *subdev, struct v4l2_subdev_state *sd_state, struct v4l2_subdev_mbus_code_enum *code_enum) { if (code_enum->index >= ARRAY_SIZE(ov5648_mbus_codes)) return -EINVAL; code_enum->code = ov5648_mbus_codes[code_enum->index]; return 0; } static void ov5648_mbus_format_fill(struct v4l2_mbus_framefmt *mbus_format, u32 mbus_code, const struct ov5648_mode *mode) { mbus_format->width = mode->output_size_x; mbus_format->height = mode->output_size_y; mbus_format->code = mbus_code; mbus_format->field = V4L2_FIELD_NONE; mbus_format->colorspace = V4L2_COLORSPACE_RAW; mbus_format->ycbcr_enc = V4L2_MAP_YCBCR_ENC_DEFAULT(mbus_format->colorspace); mbus_format->quantization = V4L2_QUANTIZATION_FULL_RANGE; mbus_format->xfer_func = V4L2_MAP_XFER_FUNC_DEFAULT(mbus_format->colorspace); } static int ov5648_get_fmt(struct v4l2_subdev *subdev, struct v4l2_subdev_state *sd_state, struct v4l2_subdev_format *format) { struct ov5648_sensor *sensor = ov5648_subdev_sensor(subdev); struct v4l2_mbus_framefmt *mbus_format = &format->format; mutex_lock(&sensor->mutex); if (format->which == V4L2_SUBDEV_FORMAT_TRY) *mbus_format = *v4l2_subdev_get_try_format(subdev, sd_state, format->pad); else ov5648_mbus_format_fill(mbus_format, sensor->state.mbus_code, sensor->state.mode); mutex_unlock(&sensor->mutex); return 0; } static int ov5648_set_fmt(struct v4l2_subdev *subdev, struct v4l2_subdev_state *sd_state, struct v4l2_subdev_format *format) { struct ov5648_sensor *sensor = ov5648_subdev_sensor(subdev); struct v4l2_mbus_framefmt *mbus_format = &format->format; const struct ov5648_mode *mode; u32 mbus_code = 0; unsigned int index; int ret = 0; mutex_lock(&sensor->mutex); if (sensor->state.streaming) { ret = -EBUSY; goto complete; } /* Try to find requested mbus code. */ for (index = 0; index < ARRAY_SIZE(ov5648_mbus_codes); index++) { if (ov5648_mbus_codes[index] == mbus_format->code) { mbus_code = mbus_format->code; break; } } /* Fallback to default. */ if (!mbus_code) mbus_code = ov5648_mbus_codes[0]; /* Find the mode with nearest dimensions. */ mode = v4l2_find_nearest_size(ov5648_modes, ARRAY_SIZE(ov5648_modes), output_size_x, output_size_y, mbus_format->width, mbus_format->height); if (!mode) { ret = -EINVAL; goto complete; } ov5648_mbus_format_fill(mbus_format, mbus_code, mode); if (format->which == V4L2_SUBDEV_FORMAT_TRY) *v4l2_subdev_get_try_format(subdev, sd_state, format->pad) = *mbus_format; else if (sensor->state.mode != mode || sensor->state.mbus_code != mbus_code) ret = ov5648_state_configure(sensor, mode, mbus_code); complete: mutex_unlock(&sensor->mutex); return ret; } static int ov5648_enum_frame_size(struct v4l2_subdev *subdev, struct v4l2_subdev_state *sd_state, struct v4l2_subdev_frame_size_enum *size_enum) { const struct ov5648_mode *mode; if (size_enum->index >= ARRAY_SIZE(ov5648_modes)) return -EINVAL; mode = &ov5648_modes[size_enum->index]; size_enum->min_width = size_enum->max_width = mode->output_size_x; size_enum->min_height = size_enum->max_height = mode->output_size_y; return 0; } static int ov5648_enum_frame_interval(struct v4l2_subdev *subdev, struct v4l2_subdev_state *sd_state, struct v4l2_subdev_frame_interval_enum *interval_enum) { const struct ov5648_mode *mode = NULL; unsigned int mode_index; unsigned int interval_index; if (interval_enum->index > 0) return -EINVAL; /* * Multiple modes with the same dimensions may have different frame * intervals, so look up each relevant mode. */ for (mode_index = 0, interval_index = 0; mode_index < ARRAY_SIZE(ov5648_modes); mode_index++) { mode = &ov5648_modes[mode_index]; if (mode->output_size_x == interval_enum->width && mode->output_size_y == interval_enum->height) { if (interval_index == interval_enum->index) break; interval_index++; } } if (mode_index == ARRAY_SIZE(ov5648_modes)) return -EINVAL; switch (interval_enum->code) { case MEDIA_BUS_FMT_SBGGR8_1X8: interval_enum->interval = mode->frame_interval[0]; break; case MEDIA_BUS_FMT_SBGGR10_1X10: interval_enum->interval = mode->frame_interval[1]; break; default: return -EINVAL; } return 0; } static const struct v4l2_subdev_pad_ops ov5648_subdev_pad_ops = { .enum_mbus_code = ov5648_enum_mbus_code, .get_fmt = ov5648_get_fmt, .set_fmt = ov5648_set_fmt, .enum_frame_size = ov5648_enum_frame_size, .enum_frame_interval = ov5648_enum_frame_interval, }; static const struct v4l2_subdev_ops ov5648_subdev_ops = { .video = &ov5648_subdev_video_ops, .pad = &ov5648_subdev_pad_ops, }; static int ov5648_suspend(struct device *dev) { struct i2c_client *client = to_i2c_client(dev); struct v4l2_subdev *subdev = i2c_get_clientdata(client); struct ov5648_sensor *sensor = ov5648_subdev_sensor(subdev); struct ov5648_state *state = &sensor->state; int ret = 0; mutex_lock(&sensor->mutex); if (state->streaming) { ret = ov5648_sw_standby(sensor, true); if (ret) goto complete; } ret = ov5648_sensor_power(sensor, false); if (ret) ov5648_sw_standby(sensor, false); complete: mutex_unlock(&sensor->mutex); return ret; } static int ov5648_resume(struct device *dev) { struct i2c_client *client = to_i2c_client(dev); struct v4l2_subdev *subdev = i2c_get_clientdata(client); struct ov5648_sensor *sensor = ov5648_subdev_sensor(subdev); struct ov5648_state *state = &sensor->state; int ret = 0; mutex_lock(&sensor->mutex); ret = ov5648_sensor_power(sensor, true); if (ret) goto complete; ret = ov5648_sensor_init(sensor); if (ret) goto error_power; ret = __v4l2_ctrl_handler_setup(&sensor->ctrls.handler); if (ret) goto error_power; if (state->streaming) { ret = ov5648_sw_standby(sensor, false); if (ret) goto error_power; } goto complete; error_power: ov5648_sensor_power(sensor, false); complete: mutex_unlock(&sensor->mutex); return ret; } static int ov5648_probe(struct i2c_client *client) { struct device *dev = &client->dev; struct fwnode_handle *handle; struct ov5648_sensor *sensor; struct v4l2_subdev *subdev; struct media_pad *pad; unsigned long rate; int ret; sensor = devm_kzalloc(dev, sizeof(*sensor), GFP_KERNEL); if (!sensor) return -ENOMEM; sensor->dev = dev; sensor->i2c_client = client; /* Graph Endpoint */ handle = fwnode_graph_get_next_endpoint(dev_fwnode(dev), NULL); if (!handle) { dev_err(dev, "unable to find endpoint node\n"); return -EINVAL; } sensor->endpoint.bus_type = V4L2_MBUS_CSI2_DPHY; ret = v4l2_fwnode_endpoint_alloc_parse(handle, &sensor->endpoint); fwnode_handle_put(handle); if (ret) { dev_err(dev, "failed to parse endpoint node\n"); return ret; } /* GPIOs */ sensor->powerdown = devm_gpiod_get_optional(dev, "powerdown", GPIOD_OUT_HIGH); if (IS_ERR(sensor->powerdown)) { ret = PTR_ERR(sensor->powerdown); goto error_endpoint; } sensor->reset = devm_gpiod_get_optional(dev, "reset", GPIOD_OUT_HIGH); if (IS_ERR(sensor->reset)) { ret = PTR_ERR(sensor->reset); goto error_endpoint; } /* Regulators */ /* DVDD: digital core */ sensor->dvdd = devm_regulator_get(dev, "dvdd"); if (IS_ERR(sensor->dvdd)) { dev_err(dev, "cannot get DVDD (digital core) regulator\n"); ret = PTR_ERR(sensor->dvdd); goto error_endpoint; } /* DOVDD: digital I/O */ sensor->dovdd = devm_regulator_get(dev, "dovdd"); if (IS_ERR(sensor->dovdd)) { dev_err(dev, "cannot get DOVDD (digital I/O) regulator\n"); ret = PTR_ERR(sensor->dovdd); goto error_endpoint; } /* AVDD: analog */ sensor->avdd = devm_regulator_get_optional(dev, "avdd"); if (IS_ERR(sensor->avdd)) { dev_info(dev, "no AVDD regulator provided, using internal\n"); sensor->avdd = NULL; } /* External Clock */ sensor->xvclk = devm_clk_get(dev, NULL); if (IS_ERR(sensor->xvclk)) { dev_err(dev, "failed to get external clock\n"); ret = PTR_ERR(sensor->xvclk); goto error_endpoint; } rate = clk_get_rate(sensor->xvclk); if (rate != OV5648_XVCLK_RATE) { dev_err(dev, "clock rate %lu Hz is unsupported\n", rate); ret = -EINVAL; goto error_endpoint; } /* Subdev, entity and pad */ subdev = &sensor->subdev; v4l2_i2c_subdev_init(subdev, client, &ov5648_subdev_ops); subdev->flags |= V4L2_SUBDEV_FL_HAS_DEVNODE; subdev->entity.function = MEDIA_ENT_F_CAM_SENSOR; pad = &sensor->pad; pad->flags = MEDIA_PAD_FL_SOURCE; ret = media_entity_pads_init(&subdev->entity, 1, pad); if (ret) goto error_entity; /* Mutex */ mutex_init(&sensor->mutex); /* Sensor */ ret = ov5648_ctrls_init(sensor); if (ret) goto error_mutex; ret = ov5648_state_init(sensor); if (ret) goto error_ctrls; /* Runtime PM */ pm_runtime_enable(sensor->dev); pm_runtime_set_suspended(sensor->dev); /* V4L2 subdev register */ ret = v4l2_async_register_subdev_sensor(subdev); if (ret) goto error_pm; return 0; error_pm: pm_runtime_disable(sensor->dev); error_ctrls: v4l2_ctrl_handler_free(&sensor->ctrls.handler); error_mutex: mutex_destroy(&sensor->mutex); error_entity: media_entity_cleanup(&sensor->subdev.entity); error_endpoint: v4l2_fwnode_endpoint_free(&sensor->endpoint); return ret; } static int ov5648_remove(struct i2c_client *client) { struct v4l2_subdev *subdev = i2c_get_clientdata(client); struct ov5648_sensor *sensor = ov5648_subdev_sensor(subdev); v4l2_async_unregister_subdev(subdev); pm_runtime_disable(sensor->dev); v4l2_ctrl_handler_free(&sensor->ctrls.handler); mutex_destroy(&sensor->mutex); media_entity_cleanup(&subdev->entity); return 0; } static const struct dev_pm_ops ov5648_pm_ops = { SET_RUNTIME_PM_OPS(ov5648_suspend, ov5648_resume, NULL) }; static const struct of_device_id ov5648_of_match[] = { { .compatible = "ovti,ov5648" }, { } }; MODULE_DEVICE_TABLE(of, ov5648_of_match); static struct i2c_driver ov5648_driver = { .driver = { .name = "ov5648", .of_match_table = ov5648_of_match, .pm = &ov5648_pm_ops, }, .probe_new = ov5648_probe, .remove = ov5648_remove, }; module_i2c_driver(ov5648_driver); MODULE_AUTHOR("Paul Kocialkowski <paul.kocialkowski@bootlin.com>"); MODULE_DESCRIPTION("V4L2 driver for the OmniVision OV5648 image sensor"); MODULE_LICENSE("GPL v2");
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