| Author | Tokens | Token Proportion | Commits | Commit Proportion |
|---|---|---|---|---|
| Paul Kocialkowski | 11291 | 89.06% | 2 | 7.69% |
| Daniel Scally | 1341 | 10.58% | 14 | 53.85% |
| Sakari Ailus | 13 | 0.10% | 2 | 7.69% |
| Tomi Valkeinen | 10 | 0.08% | 1 | 3.85% |
| Christophe Jaillet | 10 | 0.08% | 1 | 3.85% |
| Hans de Goede | 7 | 0.06% | 1 | 3.85% |
| Laurent Pinchart | 2 | 0.02% | 1 | 3.85% |
| Uwe Kleine-König | 2 | 0.02% | 2 | 7.69% |
| Mauro Carvalho Chehab | 1 | 0.01% | 1 | 3.85% |
| Li Yang | 1 | 0.01% | 1 | 3.85% |
| Total | 12678 | 26 |
// SPDX-License-Identifier: GPL-2.0-or-later /* * Copyright 2020 Kévin L'hôpital <kevin.lhopital@bootlin.com> * Copyright 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/mod_devicetable.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> /* Register definitions */ /* System */ #define OV8865_SW_STANDBY_REG 0x100 #define OV8865_SW_STANDBY_STREAM_ON BIT(0) #define OV8865_SW_RESET_REG 0x103 #define OV8865_SW_RESET_RESET BIT(0) #define OV8865_PLL_CTRL0_REG 0x300 #define OV8865_PLL_CTRL0_PRE_DIV(v) ((v) & GENMASK(2, 0)) #define OV8865_PLL_CTRL1_REG 0x301 #define OV8865_PLL_CTRL1_MUL_H(v) (((v) & GENMASK(9, 8)) >> 8) #define OV8865_PLL_CTRL2_REG 0x302 #define OV8865_PLL_CTRL2_MUL_L(v) ((v) & GENMASK(7, 0)) #define OV8865_PLL_CTRL3_REG 0x303 #define OV8865_PLL_CTRL3_M_DIV(v) (((v) - 1) & GENMASK(3, 0)) #define OV8865_PLL_CTRL4_REG 0x304 #define OV8865_PLL_CTRL4_MIPI_DIV(v) ((v) & GENMASK(1, 0)) #define OV8865_PLL_CTRL5_REG 0x305 #define OV8865_PLL_CTRL5_SYS_PRE_DIV(v) ((v) & GENMASK(1, 0)) #define OV8865_PLL_CTRL6_REG 0x306 #define OV8865_PLL_CTRL6_SYS_DIV(v) (((v) - 1) & BIT(0)) #define OV8865_PLL_CTRL8_REG 0x308 #define OV8865_PLL_CTRL9_REG 0x309 #define OV8865_PLL_CTRLA_REG 0x30a #define OV8865_PLL_CTRLA_PRE_DIV_HALF(v) (((v) - 1) & BIT(0)) #define OV8865_PLL_CTRLB_REG 0x30b #define OV8865_PLL_CTRLB_PRE_DIV(v) ((v) & GENMASK(2, 0)) #define OV8865_PLL_CTRLC_REG 0x30c #define OV8865_PLL_CTRLC_MUL_H(v) (((v) & GENMASK(9, 8)) >> 8) #define OV8865_PLL_CTRLD_REG 0x30d #define OV8865_PLL_CTRLD_MUL_L(v) ((v) & GENMASK(7, 0)) #define OV8865_PLL_CTRLE_REG 0x30e #define OV8865_PLL_CTRLE_SYS_DIV(v) ((v) & GENMASK(2, 0)) #define OV8865_PLL_CTRLF_REG 0x30f #define OV8865_PLL_CTRLF_SYS_PRE_DIV(v) (((v) - 1) & GENMASK(3, 0)) #define OV8865_PLL_CTRL10_REG 0x310 #define OV8865_PLL_CTRL11_REG 0x311 #define OV8865_PLL_CTRL12_REG 0x312 #define OV8865_PLL_CTRL12_PRE_DIV_HALF(v) ((((v) - 1) << 4) & BIT(4)) #define OV8865_PLL_CTRL12_DAC_DIV(v) (((v) - 1) & GENMASK(3, 0)) #define OV8865_PLL_CTRL1B_REG 0x31b #define OV8865_PLL_CTRL1C_REG 0x31c #define OV8865_PLL_CTRL1E_REG 0x31e #define OV8865_PLL_CTRL1E_PLL1_NO_LAT BIT(3) #define OV8865_PAD_OEN0_REG 0x3000 #define OV8865_PAD_OEN2_REG 0x3002 #define OV8865_CLK_RST5_REG 0x3005 #define OV8865_CHIP_ID_HH_REG 0x300a #define OV8865_CHIP_ID_HH_VALUE 0x00 #define OV8865_CHIP_ID_H_REG 0x300b #define OV8865_CHIP_ID_H_VALUE 0x88 #define OV8865_CHIP_ID_L_REG 0x300c #define OV8865_CHIP_ID_L_VALUE 0x65 #define OV8865_PAD_OUT2_REG 0x300d #define OV8865_PAD_SEL2_REG 0x3010 #define OV8865_PAD_PK_REG 0x3011 #define OV8865_PAD_PK_DRIVE_STRENGTH_1X (0 << 5) #define OV8865_PAD_PK_DRIVE_STRENGTH_2X (1 << 5) #define OV8865_PAD_PK_DRIVE_STRENGTH_3X (2 << 5) #define OV8865_PAD_PK_DRIVE_STRENGTH_4X (3 << 5) #define OV8865_PUMP_CLK_DIV_REG 0x3015 #define OV8865_PUMP_CLK_DIV_PUMP_N(v) (((v) << 4) & GENMASK(6, 4)) #define OV8865_PUMP_CLK_DIV_PUMP_P(v) ((v) & GENMASK(2, 0)) #define OV8865_MIPI_SC_CTRL0_REG 0x3018 #define OV8865_MIPI_SC_CTRL0_LANES(v) ((((v) - 1) << 5) & \ GENMASK(7, 5)) #define OV8865_MIPI_SC_CTRL0_MIPI_EN BIT(4) #define OV8865_MIPI_SC_CTRL0_UNKNOWN BIT(1) #define OV8865_MIPI_SC_CTRL0_LANES_PD_MIPI BIT(0) #define OV8865_MIPI_SC_CTRL1_REG 0x3019 #define OV8865_CLK_RST0_REG 0x301a #define OV8865_CLK_RST1_REG 0x301b #define OV8865_CLK_RST2_REG 0x301c #define OV8865_CLK_RST3_REG 0x301d #define OV8865_CLK_RST4_REG 0x301e #define OV8865_PCLK_SEL_REG 0x3020 #define OV8865_PCLK_SEL_PCLK_DIV_MASK BIT(3) #define OV8865_PCLK_SEL_PCLK_DIV(v) ((((v) - 1) << 3) & BIT(3)) #define OV8865_MISC_CTRL_REG 0x3021 #define OV8865_MIPI_SC_CTRL2_REG 0x3022 #define OV8865_MIPI_SC_CTRL2_CLK_LANES_PD_MIPI BIT(1) #define OV8865_MIPI_SC_CTRL2_PD_MIPI_RST_SYNC BIT(0) #define OV8865_MIPI_BIT_SEL_REG 0x3031 #define OV8865_MIPI_BIT_SEL(v) (((v) << 0) & GENMASK(4, 0)) #define OV8865_CLK_SEL0_REG 0x3032 #define OV8865_CLK_SEL0_PLL1_SYS_SEL(v) (((v) << 7) & BIT(7)) #define OV8865_CLK_SEL1_REG 0x3033 #define OV8865_CLK_SEL1_MIPI_EOF BIT(5) #define OV8865_CLK_SEL1_UNKNOWN BIT(2) #define OV8865_CLK_SEL1_PLL_SCLK_SEL_MASK BIT(1) #define OV8865_CLK_SEL1_PLL_SCLK_SEL(v) (((v) << 1) & BIT(1)) #define OV8865_SCLK_CTRL_REG 0x3106 #define OV8865_SCLK_CTRL_SCLK_DIV(v) (((v) << 4) & GENMASK(7, 4)) #define OV8865_SCLK_CTRL_SCLK_PRE_DIV(v) (((v) << 2) & GENMASK(3, 2)) #define OV8865_SCLK_CTRL_UNKNOWN BIT(0) /* Exposure/gain */ #define OV8865_EXPOSURE_CTRL_HH_REG 0x3500 #define OV8865_EXPOSURE_CTRL_HH(v) (((v) & GENMASK(19, 16)) >> 16) #define OV8865_EXPOSURE_CTRL_H_REG 0x3501 #define OV8865_EXPOSURE_CTRL_H(v) (((v) & GENMASK(15, 8)) >> 8) #define OV8865_EXPOSURE_CTRL_L_REG 0x3502 #define OV8865_EXPOSURE_CTRL_L(v) ((v) & GENMASK(7, 0)) #define OV8865_EXPOSURE_GAIN_MANUAL_REG 0x3503 #define OV8865_INTEGRATION_TIME_MARGIN 8 #define OV8865_GAIN_CTRL_H_REG 0x3508 #define OV8865_GAIN_CTRL_H(v) (((v) & GENMASK(12, 8)) >> 8) #define OV8865_GAIN_CTRL_L_REG 0x3509 #define OV8865_GAIN_CTRL_L(v) ((v) & GENMASK(7, 0)) /* Timing */ #define OV8865_CROP_START_X_H_REG 0x3800 #define OV8865_CROP_START_X_H(v) (((v) & GENMASK(11, 8)) >> 8) #define OV8865_CROP_START_X_L_REG 0x3801 #define OV8865_CROP_START_X_L(v) ((v) & GENMASK(7, 0)) #define OV8865_CROP_START_Y_H_REG 0x3802 #define OV8865_CROP_START_Y_H(v) (((v) & GENMASK(11, 8)) >> 8) #define OV8865_CROP_START_Y_L_REG 0x3803 #define OV8865_CROP_START_Y_L(v) ((v) & GENMASK(7, 0)) #define OV8865_CROP_END_X_H_REG 0x3804 #define OV8865_CROP_END_X_H(v) (((v) & GENMASK(11, 8)) >> 8) #define OV8865_CROP_END_X_L_REG 0x3805 #define OV8865_CROP_END_X_L(v) ((v) & GENMASK(7, 0)) #define OV8865_CROP_END_Y_H_REG 0x3806 #define OV8865_CROP_END_Y_H(v) (((v) & GENMASK(11, 8)) >> 8) #define OV8865_CROP_END_Y_L_REG 0x3807 #define OV8865_CROP_END_Y_L(v) ((v) & GENMASK(7, 0)) #define OV8865_OUTPUT_SIZE_X_H_REG 0x3808 #define OV8865_OUTPUT_SIZE_X_H(v) (((v) & GENMASK(11, 8)) >> 8) #define OV8865_OUTPUT_SIZE_X_L_REG 0x3809 #define OV8865_OUTPUT_SIZE_X_L(v) ((v) & GENMASK(7, 0)) #define OV8865_OUTPUT_SIZE_Y_H_REG 0x380a #define OV8865_OUTPUT_SIZE_Y_H(v) (((v) & GENMASK(11, 8)) >> 8) #define OV8865_OUTPUT_SIZE_Y_L_REG 0x380b #define OV8865_OUTPUT_SIZE_Y_L(v) ((v) & GENMASK(7, 0)) #define OV8865_HTS_H_REG 0x380c #define OV8865_HTS_H(v) (((v) & GENMASK(11, 8)) >> 8) #define OV8865_HTS_L_REG 0x380d #define OV8865_HTS_L(v) ((v) & GENMASK(7, 0)) #define OV8865_VTS_H_REG 0x380e #define OV8865_VTS_H(v) (((v) & GENMASK(11, 8)) >> 8) #define OV8865_VTS_L_REG 0x380f #define OV8865_VTS_L(v) ((v) & GENMASK(7, 0)) #define OV8865_TIMING_MAX_VTS 0xffff #define OV8865_TIMING_MIN_VTS 0x04 #define OV8865_OFFSET_X_H_REG 0x3810 #define OV8865_OFFSET_X_H(v) (((v) & GENMASK(15, 8)) >> 8) #define OV8865_OFFSET_X_L_REG 0x3811 #define OV8865_OFFSET_X_L(v) ((v) & GENMASK(7, 0)) #define OV8865_OFFSET_Y_H_REG 0x3812 #define OV8865_OFFSET_Y_H(v) (((v) & GENMASK(14, 8)) >> 8) #define OV8865_OFFSET_Y_L_REG 0x3813 #define OV8865_OFFSET_Y_L(v) ((v) & GENMASK(7, 0)) #define OV8865_INC_X_ODD_REG 0x3814 #define OV8865_INC_X_ODD(v) ((v) & GENMASK(4, 0)) #define OV8865_INC_X_EVEN_REG 0x3815 #define OV8865_INC_X_EVEN(v) ((v) & GENMASK(4, 0)) #define OV8865_VSYNC_START_H_REG 0x3816 #define OV8865_VSYNC_START_H(v) (((v) & GENMASK(15, 8)) >> 8) #define OV8865_VSYNC_START_L_REG 0x3817 #define OV8865_VSYNC_START_L(v) ((v) & GENMASK(7, 0)) #define OV8865_VSYNC_END_H_REG 0x3818 #define OV8865_VSYNC_END_H(v) (((v) & GENMASK(15, 8)) >> 8) #define OV8865_VSYNC_END_L_REG 0x3819 #define OV8865_VSYNC_END_L(v) ((v) & GENMASK(7, 0)) #define OV8865_HSYNC_FIRST_H_REG 0x381a #define OV8865_HSYNC_FIRST_H(v) (((v) & GENMASK(15, 8)) >> 8) #define OV8865_HSYNC_FIRST_L_REG 0x381b #define OV8865_HSYNC_FIRST_L(v) ((v) & GENMASK(7, 0)) #define OV8865_FORMAT1_REG 0x3820 #define OV8865_FORMAT1_FLIP_VERT_ISP_EN BIT(2) #define OV8865_FORMAT1_FLIP_VERT_SENSOR_EN BIT(1) #define OV8865_FORMAT2_REG 0x3821 #define OV8865_FORMAT2_HSYNC_EN BIT(6) #define OV8865_FORMAT2_FST_VBIN_EN BIT(5) #define OV8865_FORMAT2_FST_HBIN_EN BIT(4) #define OV8865_FORMAT2_ISP_HORZ_VAR2_EN BIT(3) #define OV8865_FORMAT2_FLIP_HORZ_ISP_EN BIT(2) #define OV8865_FORMAT2_FLIP_HORZ_SENSOR_EN BIT(1) #define OV8865_FORMAT2_SYNC_HBIN_EN BIT(0) #define OV8865_INC_Y_ODD_REG 0x382a #define OV8865_INC_Y_ODD(v) ((v) & GENMASK(4, 0)) #define OV8865_INC_Y_EVEN_REG 0x382b #define OV8865_INC_Y_EVEN(v) ((v) & GENMASK(4, 0)) #define OV8865_ABLC_NUM_REG 0x3830 #define OV8865_ABLC_NUM(v) ((v) & GENMASK(4, 0)) #define OV8865_ZLINE_NUM_REG 0x3836 #define OV8865_ZLINE_NUM(v) ((v) & GENMASK(4, 0)) #define OV8865_AUTO_SIZE_CTRL_REG 0x3841 #define OV8865_AUTO_SIZE_CTRL_OFFSET_Y_REG BIT(5) #define OV8865_AUTO_SIZE_CTRL_OFFSET_X_REG BIT(4) #define OV8865_AUTO_SIZE_CTRL_CROP_END_Y_REG BIT(3) #define OV8865_AUTO_SIZE_CTRL_CROP_END_X_REG BIT(2) #define OV8865_AUTO_SIZE_CTRL_CROP_START_Y_REG BIT(1) #define OV8865_AUTO_SIZE_CTRL_CROP_START_X_REG BIT(0) #define OV8865_AUTO_SIZE_X_OFFSET_H_REG 0x3842 #define OV8865_AUTO_SIZE_X_OFFSET_L_REG 0x3843 #define OV8865_AUTO_SIZE_Y_OFFSET_H_REG 0x3844 #define OV8865_AUTO_SIZE_Y_OFFSET_L_REG 0x3845 #define OV8865_AUTO_SIZE_BOUNDARIES_REG 0x3846 #define OV8865_AUTO_SIZE_BOUNDARIES_Y(v) (((v) << 4) & GENMASK(7, 4)) #define OV8865_AUTO_SIZE_BOUNDARIES_X(v) ((v) & GENMASK(3, 0)) /* PSRAM */ #define OV8865_PSRAM_CTRL8_REG 0x3f08 /* Black Level */ #define OV8865_BLC_CTRL0_REG 0x4000 #define OV8865_BLC_CTRL0_TRIG_RANGE_EN BIT(7) #define OV8865_BLC_CTRL0_TRIG_FORMAT_EN BIT(6) #define OV8865_BLC_CTRL0_TRIG_GAIN_EN BIT(5) #define OV8865_BLC_CTRL0_TRIG_EXPOSURE_EN BIT(4) #define OV8865_BLC_CTRL0_TRIG_MANUAL_EN BIT(3) #define OV8865_BLC_CTRL0_FREEZE_EN BIT(2) #define OV8865_BLC_CTRL0_ALWAYS_EN BIT(1) #define OV8865_BLC_CTRL0_FILTER_EN BIT(0) #define OV8865_BLC_CTRL1_REG 0x4001 #define OV8865_BLC_CTRL1_DITHER_EN BIT(7) #define OV8865_BLC_CTRL1_ZERO_LINE_DIFF_EN BIT(6) #define OV8865_BLC_CTRL1_COL_SHIFT_256 (0 << 4) #define OV8865_BLC_CTRL1_COL_SHIFT_128 (1 << 4) #define OV8865_BLC_CTRL1_COL_SHIFT_64 (2 << 4) #define OV8865_BLC_CTRL1_COL_SHIFT_32 (3 << 4) #define OV8865_BLC_CTRL1_OFFSET_LIMIT_EN BIT(2) #define OV8865_BLC_CTRL1_COLUMN_CANCEL_EN BIT(1) #define OV8865_BLC_CTRL2_REG 0x4002 #define OV8865_BLC_CTRL3_REG 0x4003 #define OV8865_BLC_CTRL4_REG 0x4004 #define OV8865_BLC_CTRL5_REG 0x4005 #define OV8865_BLC_CTRL6_REG 0x4006 #define OV8865_BLC_CTRL7_REG 0x4007 #define OV8865_BLC_CTRL8_REG 0x4008 #define OV8865_BLC_CTRL9_REG 0x4009 #define OV8865_BLC_CTRLA_REG 0x400a #define OV8865_BLC_CTRLB_REG 0x400b #define OV8865_BLC_CTRLC_REG 0x400c #define OV8865_BLC_CTRLD_REG 0x400d #define OV8865_BLC_CTRLD_OFFSET_TRIGGER(v) ((v) & GENMASK(7, 0)) #define OV8865_BLC_CTRL1F_REG 0x401f #define OV8865_BLC_CTRL1F_RB_REVERSE BIT(3) #define OV8865_BLC_CTRL1F_INTERPOL_X_EN BIT(2) #define OV8865_BLC_CTRL1F_INTERPOL_Y_EN BIT(1) #define OV8865_BLC_ANCHOR_LEFT_START_H_REG 0x4020 #define OV8865_BLC_ANCHOR_LEFT_START_H(v) (((v) & GENMASK(11, 8)) >> 8) #define OV8865_BLC_ANCHOR_LEFT_START_L_REG 0x4021 #define OV8865_BLC_ANCHOR_LEFT_START_L(v) ((v) & GENMASK(7, 0)) #define OV8865_BLC_ANCHOR_LEFT_END_H_REG 0x4022 #define OV8865_BLC_ANCHOR_LEFT_END_H(v) (((v) & GENMASK(11, 8)) >> 8) #define OV8865_BLC_ANCHOR_LEFT_END_L_REG 0x4023 #define OV8865_BLC_ANCHOR_LEFT_END_L(v) ((v) & GENMASK(7, 0)) #define OV8865_BLC_ANCHOR_RIGHT_START_H_REG 0x4024 #define OV8865_BLC_ANCHOR_RIGHT_START_H(v) (((v) & GENMASK(11, 8)) >> 8) #define OV8865_BLC_ANCHOR_RIGHT_START_L_REG 0x4025 #define OV8865_BLC_ANCHOR_RIGHT_START_L(v) ((v) & GENMASK(7, 0)) #define OV8865_BLC_ANCHOR_RIGHT_END_H_REG 0x4026 #define OV8865_BLC_ANCHOR_RIGHT_END_H(v) (((v) & GENMASK(11, 8)) >> 8) #define OV8865_BLC_ANCHOR_RIGHT_END_L_REG 0x4027 #define OV8865_BLC_ANCHOR_RIGHT_END_L(v) ((v) & GENMASK(7, 0)) #define OV8865_BLC_TOP_ZLINE_START_REG 0x4028 #define OV8865_BLC_TOP_ZLINE_START(v) ((v) & GENMASK(5, 0)) #define OV8865_BLC_TOP_ZLINE_NUM_REG 0x4029 #define OV8865_BLC_TOP_ZLINE_NUM(v) ((v) & GENMASK(4, 0)) #define OV8865_BLC_TOP_BLKLINE_START_REG 0x402a #define OV8865_BLC_TOP_BLKLINE_START(v) ((v) & GENMASK(5, 0)) #define OV8865_BLC_TOP_BLKLINE_NUM_REG 0x402b #define OV8865_BLC_TOP_BLKLINE_NUM(v) ((v) & GENMASK(4, 0)) #define OV8865_BLC_BOT_ZLINE_START_REG 0x402c #define OV8865_BLC_BOT_ZLINE_START(v) ((v) & GENMASK(5, 0)) #define OV8865_BLC_BOT_ZLINE_NUM_REG 0x402d #define OV8865_BLC_BOT_ZLINE_NUM(v) ((v) & GENMASK(4, 0)) #define OV8865_BLC_BOT_BLKLINE_START_REG 0x402e #define OV8865_BLC_BOT_BLKLINE_START(v) ((v) & GENMASK(5, 0)) #define OV8865_BLC_BOT_BLKLINE_NUM_REG 0x402f #define OV8865_BLC_BOT_BLKLINE_NUM(v) ((v) & GENMASK(4, 0)) #define OV8865_BLC_OFFSET_LIMIT_REG 0x4034 #define OV8865_BLC_OFFSET_LIMIT(v) ((v) & GENMASK(7, 0)) /* VFIFO */ #define OV8865_VFIFO_READ_START_H_REG 0x4600 #define OV8865_VFIFO_READ_START_H(v) (((v) & GENMASK(15, 8)) >> 8) #define OV8865_VFIFO_READ_START_L_REG 0x4601 #define OV8865_VFIFO_READ_START_L(v) ((v) & GENMASK(7, 0)) /* MIPI */ #define OV8865_MIPI_CTRL0_REG 0x4800 #define OV8865_MIPI_CTRL1_REG 0x4801 #define OV8865_MIPI_CTRL2_REG 0x4802 #define OV8865_MIPI_CTRL3_REG 0x4803 #define OV8865_MIPI_CTRL4_REG 0x4804 #define OV8865_MIPI_CTRL5_REG 0x4805 #define OV8865_MIPI_CTRL6_REG 0x4806 #define OV8865_MIPI_CTRL7_REG 0x4807 #define OV8865_MIPI_CTRL8_REG 0x4808 #define OV8865_MIPI_FCNT_MAX_H_REG 0x4810 #define OV8865_MIPI_FCNT_MAX_L_REG 0x4811 #define OV8865_MIPI_CTRL13_REG 0x4813 #define OV8865_MIPI_CTRL14_REG 0x4814 #define OV8865_MIPI_CTRL15_REG 0x4815 #define OV8865_MIPI_EMBEDDED_DT_REG 0x4816 #define OV8865_MIPI_HS_ZERO_MIN_H_REG 0x4818 #define OV8865_MIPI_HS_ZERO_MIN_L_REG 0x4819 #define OV8865_MIPI_HS_TRAIL_MIN_H_REG 0x481a #define OV8865_MIPI_HS_TRAIL_MIN_L_REG 0x481b #define OV8865_MIPI_CLK_ZERO_MIN_H_REG 0x481c #define OV8865_MIPI_CLK_ZERO_MIN_L_REG 0x481d #define OV8865_MIPI_CLK_PREPARE_MAX_REG 0x481e #define OV8865_MIPI_CLK_PREPARE_MIN_REG 0x481f #define OV8865_MIPI_CLK_POST_MIN_H_REG 0x4820 #define OV8865_MIPI_CLK_POST_MIN_L_REG 0x4821 #define OV8865_MIPI_CLK_TRAIL_MIN_H_REG 0x4822 #define OV8865_MIPI_CLK_TRAIL_MIN_L_REG 0x4823 #define OV8865_MIPI_LPX_P_MIN_H_REG 0x4824 #define OV8865_MIPI_LPX_P_MIN_L_REG 0x4825 #define OV8865_MIPI_HS_PREPARE_MIN_REG 0x4826 #define OV8865_MIPI_HS_PREPARE_MAX_REG 0x4827 #define OV8865_MIPI_HS_EXIT_MIN_H_REG 0x4828 #define OV8865_MIPI_HS_EXIT_MIN_L_REG 0x4829 #define OV8865_MIPI_UI_HS_ZERO_MIN_REG 0x482a #define OV8865_MIPI_UI_HS_TRAIL_MIN_REG 0x482b #define OV8865_MIPI_UI_CLK_ZERO_MIN_REG 0x482c #define OV8865_MIPI_UI_CLK_PREPARE_REG 0x482d #define OV8865_MIPI_UI_CLK_POST_MIN_REG 0x482e #define OV8865_MIPI_UI_CLK_TRAIL_MIN_REG 0x482f #define OV8865_MIPI_UI_LPX_P_MIN_REG 0x4830 #define OV8865_MIPI_UI_HS_PREPARE_REG 0x4831 #define OV8865_MIPI_UI_HS_EXIT_MIN_REG 0x4832 #define OV8865_MIPI_PKT_START_SIZE_REG 0x4833 #define OV8865_MIPI_PCLK_PERIOD_REG 0x4837 #define OV8865_MIPI_LP_GPIO0_REG 0x4838 #define OV8865_MIPI_LP_GPIO1_REG 0x4839 #define OV8865_MIPI_CTRL3C_REG 0x483c #define OV8865_MIPI_LP_GPIO4_REG 0x483d #define OV8865_MIPI_CTRL4A_REG 0x484a #define OV8865_MIPI_CTRL4B_REG 0x484b #define OV8865_MIPI_CTRL4C_REG 0x484c #define OV8865_MIPI_LANE_TEST_PATTERN_REG 0x484d #define OV8865_MIPI_FRAME_END_DELAY_REG 0x484e #define OV8865_MIPI_CLOCK_TEST_PATTERN_REG 0x484f #define OV8865_MIPI_LANE_SEL01_REG 0x4850 #define OV8865_MIPI_LANE_SEL01_LANE0(v) (((v) << 0) & GENMASK(2, 0)) #define OV8865_MIPI_LANE_SEL01_LANE1(v) (((v) << 4) & GENMASK(6, 4)) #define OV8865_MIPI_LANE_SEL23_REG 0x4851 #define OV8865_MIPI_LANE_SEL23_LANE2(v) (((v) << 0) & GENMASK(2, 0)) #define OV8865_MIPI_LANE_SEL23_LANE3(v) (((v) << 4) & GENMASK(6, 4)) /* ISP */ #define OV8865_ISP_CTRL0_REG 0x5000 #define OV8865_ISP_CTRL0_LENC_EN BIT(7) #define OV8865_ISP_CTRL0_WHITE_BALANCE_EN BIT(4) #define OV8865_ISP_CTRL0_DPC_BLACK_EN BIT(2) #define OV8865_ISP_CTRL0_DPC_WHITE_EN BIT(1) #define OV8865_ISP_CTRL1_REG 0x5001 #define OV8865_ISP_CTRL1_BLC_EN BIT(0) #define OV8865_ISP_CTRL2_REG 0x5002 #define OV8865_ISP_CTRL2_DEBUG BIT(3) #define OV8865_ISP_CTRL2_VARIOPIXEL_EN BIT(2) #define OV8865_ISP_CTRL2_VSYNC_LATCH_EN BIT(0) #define OV8865_ISP_CTRL3_REG 0x5003 #define OV8865_ISP_GAIN_RED_H_REG 0x5018 #define OV8865_ISP_GAIN_RED_H(v) (((v) & GENMASK(13, 6)) >> 6) #define OV8865_ISP_GAIN_RED_L_REG 0x5019 #define OV8865_ISP_GAIN_RED_L(v) ((v) & GENMASK(5, 0)) #define OV8865_ISP_GAIN_GREEN_H_REG 0x501a #define OV8865_ISP_GAIN_GREEN_H(v) (((v) & GENMASK(13, 6)) >> 6) #define OV8865_ISP_GAIN_GREEN_L_REG 0x501b #define OV8865_ISP_GAIN_GREEN_L(v) ((v) & GENMASK(5, 0)) #define OV8865_ISP_GAIN_BLUE_H_REG 0x501c #define OV8865_ISP_GAIN_BLUE_H(v) (((v) & GENMASK(13, 6)) >> 6) #define OV8865_ISP_GAIN_BLUE_L_REG 0x501d #define OV8865_ISP_GAIN_BLUE_L(v) ((v) & GENMASK(5, 0)) /* VarioPixel */ #define OV8865_VAP_CTRL0_REG 0x5900 #define OV8865_VAP_CTRL1_REG 0x5901 #define OV8865_VAP_CTRL1_HSUB_COEF(v) ((((v) - 1) << 2) & \ GENMASK(3, 2)) #define OV8865_VAP_CTRL1_VSUB_COEF(v) (((v) - 1) & GENMASK(1, 0)) /* Pre-DSP */ #define OV8865_PRE_CTRL0_REG 0x5e00 #define OV8865_PRE_CTRL0_PATTERN_EN BIT(7) #define OV8865_PRE_CTRL0_ROLLING_BAR_EN BIT(6) #define OV8865_PRE_CTRL0_TRANSPARENT_MODE BIT(5) #define OV8865_PRE_CTRL0_SQUARES_BW_MODE BIT(4) #define OV8865_PRE_CTRL0_PATTERN_COLOR_BARS 0 #define OV8865_PRE_CTRL0_PATTERN_RANDOM_DATA 1 #define OV8865_PRE_CTRL0_PATTERN_COLOR_SQUARES 2 #define OV8865_PRE_CTRL0_PATTERN_BLACK 3 /* Pixel Array */ #define OV8865_NATIVE_WIDTH 3296 #define OV8865_NATIVE_HEIGHT 2528 #define OV8865_ACTIVE_START_LEFT 16 #define OV8865_ACTIVE_START_TOP 40 #define OV8865_ACTIVE_WIDTH 3264 #define OV8865_ACTIVE_HEIGHT 2448 /* Macros */ #define ov8865_subdev_sensor(s) \ container_of(s, struct ov8865_sensor, subdev) #define ov8865_ctrl_subdev(c) \ (&container_of((c)->handler, struct ov8865_sensor, \ ctrls.handler)->subdev) /* Data structures */ struct ov8865_register_value { u16 address; u8 value; unsigned int delay_ms; }; /* * PLL1 Clock Tree: * * +-< EXTCLK * | * +-+ pll_pre_div_half (0x30a [0]) * | * +-+ pll_pre_div (0x300 [2:0], special values: * | 0: 1, 1: 1.5, 3: 2.5, 4: 3, 5: 4, 7: 8) * +-+ pll_mul (0x301 [1:0], 0x302 [7:0]) * | * +-+ m_div (0x303 [3:0]) * | | * | +-> PHY_SCLK * | | * | +-+ mipi_div (0x304 [1:0], special values: 0: 4, 1: 5, 2: 6, 3: 8) * | | * | +-+ pclk_div (0x3020 [3]) * | | * | +-> PCLK * | * +-+ sys_pre_div (0x305 [1:0], special values: 0: 3, 1: 4, 2: 5, 3: 6) * | * +-+ sys_div (0x306 [0]) * | * +-+ sys_sel (0x3032 [7], 0: PLL1, 1: PLL2) * | * +-+ sclk_sel (0x3033 [1], 0: sys_sel, 1: PLL2 DAC_CLK) * | * +-+ sclk_pre_div (0x3106 [3:2], special values: * | 0: 1, 1: 2, 2: 4, 3: 1) * | * +-+ sclk_div (0x3106 [7:4], special values: 0: 1) * | * +-> SCLK */ struct ov8865_pll1_config { unsigned int pll_pre_div_half; unsigned int pll_pre_div; unsigned int pll_mul; unsigned int m_div; unsigned int mipi_div; unsigned int pclk_div; unsigned int sys_pre_div; unsigned int sys_div; }; /* * PLL2 Clock Tree: * * +-< EXTCLK * | * +-+ pll_pre_div_half (0x312 [4]) * | * +-+ pll_pre_div (0x30b [2:0], special values: * | 0: 1, 1: 1.5, 3: 2.5, 4: 3, 5: 4, 7: 8) * +-+ pll_mul (0x30c [1:0], 0x30d [7:0]) * | * +-+ dac_div (0x312 [3:0]) * | | * | +-> DAC_CLK * | * +-+ sys_pre_div (0x30f [3:0]) * | * +-+ sys_div (0x30e [2:0], special values: * | 0: 1, 1: 1.5, 3: 2.5, 4: 3, 5: 3.5, 6: 4, 7:5) * | * +-+ sys_sel (0x3032 [7], 0: PLL1, 1: PLL2) * | * +-+ sclk_sel (0x3033 [1], 0: sys_sel, 1: PLL2 DAC_CLK) * | * +-+ sclk_pre_div (0x3106 [3:2], special values: * | 0: 1, 1: 2, 2: 4, 3: 1) * | * +-+ sclk_div (0x3106 [7:4], special values: 0: 1) * | * +-> SCLK */ struct ov8865_pll2_config { unsigned int pll_pre_div_half; unsigned int pll_pre_div; unsigned int pll_mul; unsigned int dac_div; unsigned int sys_pre_div; unsigned int sys_div; }; struct ov8865_sclk_config { unsigned int sys_sel; unsigned int sclk_sel; unsigned int sclk_pre_div; unsigned int sclk_div; }; struct ov8865_pll_configs { const struct ov8865_pll1_config *pll1_config; const struct ov8865_pll2_config *pll2_config_native; const struct ov8865_pll2_config *pll2_config_binning; }; /* Clock rate */ enum extclk_rate { OV8865_19_2_MHZ, OV8865_24_MHZ, OV8865_NUM_SUPPORTED_RATES }; static const unsigned long supported_extclk_rates[] = { [OV8865_19_2_MHZ] = 19200000, [OV8865_24_MHZ] = 24000000, }; /* * General formulas for (array-centered) mode calculation: * - photo_array_width = 3296 * - 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 = 2480 * - crop_start_y = (photo_array_height - output_size_y) / 2 * - crop_end_y = crop_start_y + offset_y + output_size_y - 1 */ struct ov8865_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; /* With auto size, only output and total sizes need to be set. */ bool size_auto; unsigned int size_auto_boundary_x; unsigned int size_auto_boundary_y; bool binning_x; bool binning_y; bool variopixel; unsigned int variopixel_hsub_coef; unsigned int variopixel_vsub_coef; /* Bits for the format register, used for binning. */ bool sync_hbin; bool horz_var2; unsigned int inc_x_odd; unsigned int inc_x_even; unsigned int inc_y_odd; unsigned int inc_y_even; unsigned int vfifo_read_start; unsigned int ablc_num; unsigned int zline_num; unsigned int blc_top_zero_line_start; unsigned int blc_top_zero_line_num; unsigned int blc_top_black_line_start; unsigned int blc_top_black_line_num; unsigned int blc_bottom_zero_line_start; unsigned int blc_bottom_zero_line_num; unsigned int blc_bottom_black_line_start; unsigned int blc_bottom_black_line_num; u8 blc_col_shift_mask; unsigned int blc_anchor_left_start; unsigned int blc_anchor_left_end; unsigned int blc_anchor_right_start; unsigned int blc_anchor_right_end; bool pll2_binning; const struct ov8865_register_value *register_values; unsigned int register_values_count; }; struct ov8865_state { const struct ov8865_mode *mode; u32 mbus_code; bool streaming; }; struct ov8865_ctrls { struct v4l2_ctrl *link_freq; struct v4l2_ctrl *pixel_rate; struct v4l2_ctrl *hblank; struct v4l2_ctrl *vblank; struct v4l2_ctrl *exposure; struct v4l2_ctrl_handler handler; }; struct ov8865_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; unsigned long extclk_rate; const struct ov8865_pll_configs *pll_configs; struct clk *extclk; struct v4l2_fwnode_endpoint endpoint; struct v4l2_subdev subdev; struct media_pad pad; struct mutex mutex; struct ov8865_state state; struct ov8865_ctrls ctrls; }; /* Static definitions */ /* * PHY_SCLK = 720 MHz * MIPI_PCLK = 90 MHz */ static const struct ov8865_pll1_config ov8865_pll1_config_native_19_2mhz = { .pll_pre_div_half = 1, .pll_pre_div = 2, .pll_mul = 75, .m_div = 1, .mipi_div = 3, .pclk_div = 1, .sys_pre_div = 1, .sys_div = 2, }; static const struct ov8865_pll1_config ov8865_pll1_config_native_24mhz = { .pll_pre_div_half = 1, .pll_pre_div = 0, .pll_mul = 30, .m_div = 1, .mipi_div = 3, .pclk_div = 1, .sys_pre_div = 1, .sys_div = 2, }; /* * DAC_CLK = 360 MHz * SCLK = 144 MHz */ static const struct ov8865_pll2_config ov8865_pll2_config_native_19_2mhz = { .pll_pre_div_half = 1, .pll_pre_div = 5, .pll_mul = 75, .dac_div = 1, .sys_pre_div = 1, .sys_div = 3, }; static const struct ov8865_pll2_config ov8865_pll2_config_native_24mhz = { .pll_pre_div_half = 1, .pll_pre_div = 0, .pll_mul = 30, .dac_div = 2, .sys_pre_div = 5, .sys_div = 0, }; /* * DAC_CLK = 360 MHz * SCLK = 72 MHz */ static const struct ov8865_pll2_config ov8865_pll2_config_binning_19_2mhz = { .pll_pre_div_half = 1, .pll_pre_div = 2, .pll_mul = 75, .dac_div = 2, .sys_pre_div = 10, .sys_div = 0, }; static const struct ov8865_pll2_config ov8865_pll2_config_binning_24mhz = { .pll_pre_div_half = 1, .pll_pre_div = 0, .pll_mul = 30, .dac_div = 2, .sys_pre_div = 10, .sys_div = 0, }; static const struct ov8865_pll_configs ov8865_pll_configs_19_2mhz = { .pll1_config = &ov8865_pll1_config_native_19_2mhz, .pll2_config_native = &ov8865_pll2_config_native_19_2mhz, .pll2_config_binning = &ov8865_pll2_config_binning_19_2mhz, }; static const struct ov8865_pll_configs ov8865_pll_configs_24mhz = { .pll1_config = &ov8865_pll1_config_native_24mhz, .pll2_config_native = &ov8865_pll2_config_native_24mhz, .pll2_config_binning = &ov8865_pll2_config_binning_24mhz, }; static const struct ov8865_pll_configs *ov8865_pll_configs[] = { &ov8865_pll_configs_19_2mhz, &ov8865_pll_configs_24mhz, }; static const struct ov8865_sclk_config ov8865_sclk_config_native = { .sys_sel = 1, .sclk_sel = 0, .sclk_pre_div = 0, .sclk_div = 0, }; static const struct ov8865_register_value ov8865_register_values_native[] = { /* Sensor */ { 0x3700, 0x48 }, { 0x3701, 0x18 }, { 0x3702, 0x50 }, { 0x3703, 0x32 }, { 0x3704, 0x28 }, { 0x3706, 0x70 }, { 0x3707, 0x08 }, { 0x3708, 0x48 }, { 0x3709, 0x80 }, { 0x370a, 0x01 }, { 0x370b, 0x70 }, { 0x370c, 0x07 }, { 0x3718, 0x14 }, { 0x3712, 0x44 }, { 0x371e, 0x31 }, { 0x371f, 0x7f }, { 0x3720, 0x0a }, { 0x3721, 0x0a }, { 0x3724, 0x04 }, { 0x3725, 0x04 }, { 0x3726, 0x0c }, { 0x3728, 0x0a }, { 0x3729, 0x03 }, { 0x372a, 0x06 }, { 0x372b, 0xa6 }, { 0x372c, 0xa6 }, { 0x372d, 0xa6 }, { 0x372e, 0x0c }, { 0x372f, 0x20 }, { 0x3730, 0x02 }, { 0x3731, 0x0c }, { 0x3732, 0x28 }, { 0x3736, 0x30 }, { 0x373a, 0x04 }, { 0x373b, 0x18 }, { 0x373c, 0x14 }, { 0x373e, 0x06 }, { 0x375a, 0x0c }, { 0x375b, 0x26 }, { 0x375d, 0x04 }, { 0x375f, 0x28 }, { 0x3767, 0x1e }, { 0x3772, 0x46 }, { 0x3773, 0x04 }, { 0x3774, 0x2c }, { 0x3775, 0x13 }, { 0x3776, 0x10 }, { 0x37a0, 0x88 }, { 0x37a1, 0x7a }, { 0x37a2, 0x7a }, { 0x37a3, 0x02 }, { 0x37a5, 0x09 }, { 0x37a7, 0x88 }, { 0x37a8, 0xb0 }, { 0x37a9, 0xb0 }, { 0x37aa, 0x88 }, { 0x37ab, 0x5c }, { 0x37ac, 0x5c }, { 0x37ad, 0x55 }, { 0x37ae, 0x19 }, { 0x37af, 0x19 }, { 0x37b3, 0x84 }, { 0x37b4, 0x84 }, { 0x37b5, 0x66 }, /* PSRAM */ { OV8865_PSRAM_CTRL8_REG, 0x16 }, /* ADC Sync */ { 0x4500, 0x68 }, }; static const struct ov8865_register_value ov8865_register_values_binning[] = { /* Sensor */ { 0x3700, 0x24 }, { 0x3701, 0x0c }, { 0x3702, 0x28 }, { 0x3703, 0x19 }, { 0x3704, 0x14 }, { 0x3706, 0x38 }, { 0x3707, 0x04 }, { 0x3708, 0x24 }, { 0x3709, 0x40 }, { 0x370a, 0x00 }, { 0x370b, 0xb8 }, { 0x370c, 0x04 }, { 0x3718, 0x12 }, { 0x3712, 0x42 }, { 0x371e, 0x19 }, { 0x371f, 0x40 }, { 0x3720, 0x05 }, { 0x3721, 0x05 }, { 0x3724, 0x02 }, { 0x3725, 0x02 }, { 0x3726, 0x06 }, { 0x3728, 0x05 }, { 0x3729, 0x02 }, { 0x372a, 0x03 }, { 0x372b, 0x53 }, { 0x372c, 0xa3 }, { 0x372d, 0x53 }, { 0x372e, 0x06 }, { 0x372f, 0x10 }, { 0x3730, 0x01 }, { 0x3731, 0x06 }, { 0x3732, 0x14 }, { 0x3736, 0x20 }, { 0x373a, 0x02 }, { 0x373b, 0x0c }, { 0x373c, 0x0a }, { 0x373e, 0x03 }, { 0x375a, 0x06 }, { 0x375b, 0x13 }, { 0x375d, 0x02 }, { 0x375f, 0x14 }, { 0x3767, 0x1c }, { 0x3772, 0x23 }, { 0x3773, 0x02 }, { 0x3774, 0x16 }, { 0x3775, 0x12 }, { 0x3776, 0x08 }, { 0x37a0, 0x44 }, { 0x37a1, 0x3d }, { 0x37a2, 0x3d }, { 0x37a3, 0x01 }, { 0x37a5, 0x08 }, { 0x37a7, 0x44 }, { 0x37a8, 0x58 }, { 0x37a9, 0x58 }, { 0x37aa, 0x44 }, { 0x37ab, 0x2e }, { 0x37ac, 0x2e }, { 0x37ad, 0x33 }, { 0x37ae, 0x0d }, { 0x37af, 0x0d }, { 0x37b3, 0x42 }, { 0x37b4, 0x42 }, { 0x37b5, 0x33 }, /* PSRAM */ { OV8865_PSRAM_CTRL8_REG, 0x0b }, /* ADC Sync */ { 0x4500, 0x40 }, }; static const struct ov8865_mode ov8865_modes[] = { /* 3264x2448 */ { /* Horizontal */ .output_size_x = 3264, .hts = 3888, /* Vertical */ .output_size_y = 2448, .vts = 2470, .size_auto = true, .size_auto_boundary_x = 8, .size_auto_boundary_y = 4, /* Subsample increase */ .inc_x_odd = 1, .inc_x_even = 1, .inc_y_odd = 1, .inc_y_even = 1, /* VFIFO */ .vfifo_read_start = 16, .ablc_num = 4, .zline_num = 1, /* Black Level */ .blc_top_zero_line_start = 0, .blc_top_zero_line_num = 2, .blc_top_black_line_start = 4, .blc_top_black_line_num = 4, .blc_bottom_zero_line_start = 2, .blc_bottom_zero_line_num = 2, .blc_bottom_black_line_start = 8, .blc_bottom_black_line_num = 2, .blc_anchor_left_start = 576, .blc_anchor_left_end = 831, .blc_anchor_right_start = 1984, .blc_anchor_right_end = 2239, /* PLL */ .pll2_binning = false, /* Registers */ .register_values = ov8865_register_values_native, .register_values_count = ARRAY_SIZE(ov8865_register_values_native), }, /* 3264x1836 */ { /* Horizontal */ .output_size_x = 3264, .hts = 3888, /* Vertical */ .output_size_y = 1836, .vts = 2470, .size_auto = true, .size_auto_boundary_x = 8, .size_auto_boundary_y = 4, /* Subsample increase */ .inc_x_odd = 1, .inc_x_even = 1, .inc_y_odd = 1, .inc_y_even = 1, /* VFIFO */ .vfifo_read_start = 16, .ablc_num = 4, .zline_num = 1, /* Black Level */ .blc_top_zero_line_start = 0, .blc_top_zero_line_num = 2, .blc_top_black_line_start = 4, .blc_top_black_line_num = 4, .blc_bottom_zero_line_start = 2, .blc_bottom_zero_line_num = 2, .blc_bottom_black_line_start = 8, .blc_bottom_black_line_num = 2, .blc_anchor_left_start = 576, .blc_anchor_left_end = 831, .blc_anchor_right_start = 1984, .blc_anchor_right_end = 2239, /* PLL */ .pll2_binning = false, /* Registers */ .register_values = ov8865_register_values_native, .register_values_count = ARRAY_SIZE(ov8865_register_values_native), }, /* 1632x1224 */ { /* Horizontal */ .output_size_x = 1632, .hts = 1923, /* Vertical */ .output_size_y = 1224, .vts = 1248, .size_auto = true, .size_auto_boundary_x = 8, .size_auto_boundary_y = 8, /* Subsample increase */ .inc_x_odd = 3, .inc_x_even = 1, .inc_y_odd = 3, .inc_y_even = 1, /* Binning */ .binning_y = true, .sync_hbin = true, /* VFIFO */ .vfifo_read_start = 116, .ablc_num = 8, .zline_num = 2, /* Black Level */ .blc_top_zero_line_start = 0, .blc_top_zero_line_num = 2, .blc_top_black_line_start = 4, .blc_top_black_line_num = 4, .blc_bottom_zero_line_start = 2, .blc_bottom_zero_line_num = 2, .blc_bottom_black_line_start = 8, .blc_bottom_black_line_num = 2, .blc_anchor_left_start = 288, .blc_anchor_left_end = 415, .blc_anchor_right_start = 992, .blc_anchor_right_end = 1119, /* PLL */ .pll2_binning = true, /* Registers */ .register_values = ov8865_register_values_binning, .register_values_count = ARRAY_SIZE(ov8865_register_values_binning), }, /* 800x600 (SVGA) */ { /* Horizontal */ .output_size_x = 800, .hts = 1250, /* Vertical */ .output_size_y = 600, .vts = 640, .size_auto = true, .size_auto_boundary_x = 8, .size_auto_boundary_y = 8, /* Subsample increase */ .inc_x_odd = 3, .inc_x_even = 1, .inc_y_odd = 5, .inc_y_even = 3, /* Binning */ .binning_y = true, .variopixel = true, .variopixel_hsub_coef = 2, .variopixel_vsub_coef = 1, .sync_hbin = true, .horz_var2 = true, /* VFIFO */ .vfifo_read_start = 80, .ablc_num = 8, .zline_num = 2, /* Black Level */ .blc_top_zero_line_start = 0, .blc_top_zero_line_num = 2, .blc_top_black_line_start = 2, .blc_top_black_line_num = 2, .blc_bottom_zero_line_start = 0, .blc_bottom_zero_line_num = 0, .blc_bottom_black_line_start = 4, .blc_bottom_black_line_num = 2, .blc_col_shift_mask = OV8865_BLC_CTRL1_COL_SHIFT_128, .blc_anchor_left_start = 288, .blc_anchor_left_end = 415, .blc_anchor_right_start = 992, .blc_anchor_right_end = 1119, /* PLL */ .pll2_binning = true, /* Registers */ .register_values = ov8865_register_values_binning, .register_values_count = ARRAY_SIZE(ov8865_register_values_binning), }, }; static const u32 ov8865_mbus_codes[] = { MEDIA_BUS_FMT_SBGGR10_1X10, }; static const struct ov8865_register_value ov8865_init_sequence[] = { /* Analog */ { 0x3604, 0x04 }, { 0x3602, 0x30 }, { 0x3605, 0x00 }, { 0x3607, 0x20 }, { 0x3608, 0x11 }, { 0x3609, 0x68 }, { 0x360a, 0x40 }, { 0x360c, 0xdd }, { 0x360e, 0x0c }, { 0x3610, 0x07 }, { 0x3612, 0x86 }, { 0x3613, 0x58 }, { 0x3614, 0x28 }, { 0x3617, 0x40 }, { 0x3618, 0x5a }, { 0x3619, 0x9b }, { 0x361c, 0x00 }, { 0x361d, 0x60 }, { 0x3631, 0x60 }, { 0x3633, 0x10 }, { 0x3634, 0x10 }, { 0x3635, 0x10 }, { 0x3636, 0x10 }, { 0x3638, 0xff }, { 0x3641, 0x55 }, { 0x3646, 0x86 }, { 0x3647, 0x27 }, { 0x364a, 0x1b }, /* Sensor */ { 0x3700, 0x24 }, { 0x3701, 0x0c }, { 0x3702, 0x28 }, { 0x3703, 0x19 }, { 0x3704, 0x14 }, { 0x3705, 0x00 }, { 0x3706, 0x38 }, { 0x3707, 0x04 }, { 0x3708, 0x24 }, { 0x3709, 0x40 }, { 0x370a, 0x00 }, { 0x370b, 0xb8 }, { 0x370c, 0x04 }, { 0x3718, 0x12 }, { 0x3719, 0x31 }, { 0x3712, 0x42 }, { 0x3714, 0x12 }, { 0x371e, 0x19 }, { 0x371f, 0x40 }, { 0x3720, 0x05 }, { 0x3721, 0x05 }, { 0x3724, 0x02 }, { 0x3725, 0x02 }, { 0x3726, 0x06 }, { 0x3728, 0x05 }, { 0x3729, 0x02 }, { 0x372a, 0x03 }, { 0x372b, 0x53 }, { 0x372c, 0xa3 }, { 0x372d, 0x53 }, { 0x372e, 0x06 }, { 0x372f, 0x10 }, { 0x3730, 0x01 }, { 0x3731, 0x06 }, { 0x3732, 0x14 }, { 0x3733, 0x10 }, { 0x3734, 0x40 }, { 0x3736, 0x20 }, { 0x373a, 0x02 }, { 0x373b, 0x0c }, { 0x373c, 0x0a }, { 0x373e, 0x03 }, { 0x3755, 0x40 }, { 0x3758, 0x00 }, { 0x3759, 0x4c }, { 0x375a, 0x06 }, { 0x375b, 0x13 }, { 0x375c, 0x40 }, { 0x375d, 0x02 }, { 0x375e, 0x00 }, { 0x375f, 0x14 }, { 0x3767, 0x1c }, { 0x3768, 0x04 }, { 0x3769, 0x20 }, { 0x376c, 0xc0 }, { 0x376d, 0xc0 }, { 0x376a, 0x08 }, { 0x3761, 0x00 }, { 0x3762, 0x00 }, { 0x3763, 0x00 }, { 0x3766, 0xff }, { 0x376b, 0x42 }, { 0x3772, 0x23 }, { 0x3773, 0x02 }, { 0x3774, 0x16 }, { 0x3775, 0x12 }, { 0x3776, 0x08 }, { 0x37a0, 0x44 }, { 0x37a1, 0x3d }, { 0x37a2, 0x3d }, { 0x37a3, 0x01 }, { 0x37a4, 0x00 }, { 0x37a5, 0x08 }, { 0x37a6, 0x00 }, { 0x37a7, 0x44 }, { 0x37a8, 0x58 }, { 0x37a9, 0x58 }, { 0x3760, 0x00 }, { 0x376f, 0x01 }, { 0x37aa, 0x44 }, { 0x37ab, 0x2e }, { 0x37ac, 0x2e }, { 0x37ad, 0x33 }, { 0x37ae, 0x0d }, { 0x37af, 0x0d }, { 0x37b0, 0x00 }, { 0x37b1, 0x00 }, { 0x37b2, 0x00 }, { 0x37b3, 0x42 }, { 0x37b4, 0x42 }, { 0x37b5, 0x33 }, { 0x37b6, 0x00 }, { 0x37b7, 0x00 }, { 0x37b8, 0x00 }, { 0x37b9, 0xff }, /* ADC Sync */ { 0x4503, 0x10 }, }; static const s64 ov8865_link_freq_menu[] = { 360000000, }; static const char *const ov8865_test_pattern_menu[] = { "Disabled", "Random data", "Color bars", "Color bars with rolling bar", "Color squares", "Color squares with rolling bar" }; static const u8 ov8865_test_pattern_bits[] = { 0, OV8865_PRE_CTRL0_PATTERN_EN | OV8865_PRE_CTRL0_PATTERN_RANDOM_DATA, OV8865_PRE_CTRL0_PATTERN_EN | OV8865_PRE_CTRL0_PATTERN_COLOR_BARS, OV8865_PRE_CTRL0_PATTERN_EN | OV8865_PRE_CTRL0_ROLLING_BAR_EN | OV8865_PRE_CTRL0_PATTERN_COLOR_BARS, OV8865_PRE_CTRL0_PATTERN_EN | OV8865_PRE_CTRL0_PATTERN_COLOR_SQUARES, OV8865_PRE_CTRL0_PATTERN_EN | OV8865_PRE_CTRL0_ROLLING_BAR_EN | OV8865_PRE_CTRL0_PATTERN_COLOR_SQUARES, }; /* Input/Output */ static int ov8865_read(struct ov8865_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 ov8865_write(struct ov8865_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 ov8865_write_sequence(struct ov8865_sensor *sensor, const struct ov8865_register_value *sequence, unsigned int sequence_count) { unsigned int i; int ret = 0; for (i = 0; i < sequence_count; i++) { ret = ov8865_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 ov8865_update_bits(struct ov8865_sensor *sensor, u16 address, u8 mask, u8 bits) { u8 value = 0; int ret; ret = ov8865_read(sensor, address, &value); if (ret) return ret; value &= ~mask; value |= bits; return ov8865_write(sensor, address, value); } /* Sensor */ static int ov8865_sw_reset(struct ov8865_sensor *sensor) { return ov8865_write(sensor, OV8865_SW_RESET_REG, OV8865_SW_RESET_RESET); } static int ov8865_sw_standby(struct ov8865_sensor *sensor, int standby) { u8 value = 0; if (!standby) value = OV8865_SW_STANDBY_STREAM_ON; return ov8865_write(sensor, OV8865_SW_STANDBY_REG, value); } static int ov8865_chip_id_check(struct ov8865_sensor *sensor) { u16 regs[] = { OV8865_CHIP_ID_HH_REG, OV8865_CHIP_ID_H_REG, OV8865_CHIP_ID_L_REG }; u8 values[] = { OV8865_CHIP_ID_HH_VALUE, OV8865_CHIP_ID_H_VALUE, OV8865_CHIP_ID_L_VALUE }; unsigned int i; u8 value; int ret; for (i = 0; i < ARRAY_SIZE(regs); i++) { ret = ov8865_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 ov8865_charge_pump_configure(struct ov8865_sensor *sensor) { return ov8865_write(sensor, OV8865_PUMP_CLK_DIV_REG, OV8865_PUMP_CLK_DIV_PUMP_P(1)); } static int ov8865_mipi_configure(struct ov8865_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 = ov8865_write(sensor, OV8865_MIPI_SC_CTRL0_REG, OV8865_MIPI_SC_CTRL0_LANES(lanes_count) | OV8865_MIPI_SC_CTRL0_MIPI_EN | OV8865_MIPI_SC_CTRL0_UNKNOWN); if (ret) return ret; ret = ov8865_write(sensor, OV8865_MIPI_SC_CTRL2_REG, OV8865_MIPI_SC_CTRL2_PD_MIPI_RST_SYNC); if (ret) return ret; if (lanes_count >= 2) { ret = ov8865_write(sensor, OV8865_MIPI_LANE_SEL01_REG, OV8865_MIPI_LANE_SEL01_LANE0(0) | OV8865_MIPI_LANE_SEL01_LANE1(1)); if (ret) return ret; } if (lanes_count >= 4) { ret = ov8865_write(sensor, OV8865_MIPI_LANE_SEL23_REG, OV8865_MIPI_LANE_SEL23_LANE2(2) | OV8865_MIPI_LANE_SEL23_LANE3(3)); if (ret) return ret; } ret = ov8865_update_bits(sensor, OV8865_CLK_SEL1_REG, OV8865_CLK_SEL1_MIPI_EOF, OV8865_CLK_SEL1_MIPI_EOF); if (ret) return ret; /* * This value might need to change depending on PCLK rate, * but it's unclear how. This value seems to generally work * while the default value was found to cause transmission errors. */ return ov8865_write(sensor, OV8865_MIPI_PCLK_PERIOD_REG, 0x16); } static int ov8865_black_level_configure(struct ov8865_sensor *sensor) { int ret; /* Trigger BLC on relevant events and enable filter. */ ret = ov8865_write(sensor, OV8865_BLC_CTRL0_REG, OV8865_BLC_CTRL0_TRIG_RANGE_EN | OV8865_BLC_CTRL0_TRIG_FORMAT_EN | OV8865_BLC_CTRL0_TRIG_GAIN_EN | OV8865_BLC_CTRL0_TRIG_EXPOSURE_EN | OV8865_BLC_CTRL0_FILTER_EN); if (ret) return ret; /* Lower BLC offset trigger threshold. */ ret = ov8865_write(sensor, OV8865_BLC_CTRLD_REG, OV8865_BLC_CTRLD_OFFSET_TRIGGER(16)); if (ret) return ret; ret = ov8865_write(sensor, OV8865_BLC_CTRL1F_REG, 0); if (ret) return ret; /* Increase BLC offset maximum limit. */ return ov8865_write(sensor, OV8865_BLC_OFFSET_LIMIT_REG, OV8865_BLC_OFFSET_LIMIT(63)); } static int ov8865_isp_configure(struct ov8865_sensor *sensor) { int ret; /* Disable lens correction. */ ret = ov8865_write(sensor, OV8865_ISP_CTRL0_REG, OV8865_ISP_CTRL0_WHITE_BALANCE_EN | OV8865_ISP_CTRL0_DPC_BLACK_EN | OV8865_ISP_CTRL0_DPC_WHITE_EN); if (ret) return ret; return ov8865_write(sensor, OV8865_ISP_CTRL1_REG, OV8865_ISP_CTRL1_BLC_EN); } static unsigned long ov8865_mode_pll1_rate(struct ov8865_sensor *sensor, const struct ov8865_mode *mode) { const struct ov8865_pll1_config *config; unsigned long pll1_rate; config = sensor->pll_configs->pll1_config; pll1_rate = sensor->extclk_rate * config->pll_mul / config->pll_pre_div_half; switch (config->pll_pre_div) { case 0: break; case 1: pll1_rate *= 3; pll1_rate /= 2; break; case 3: pll1_rate *= 5; pll1_rate /= 2; break; case 4: pll1_rate /= 3; break; case 5: pll1_rate /= 4; break; case 7: pll1_rate /= 8; break; default: pll1_rate /= config->pll_pre_div; break; } return pll1_rate; } static int ov8865_mode_pll1_configure(struct ov8865_sensor *sensor, const struct ov8865_mode *mode, u32 mbus_code) { const struct ov8865_pll1_config *config; u8 value; int ret; config = sensor->pll_configs->pll1_config; switch (mbus_code) { case MEDIA_BUS_FMT_SBGGR10_1X10: value = OV8865_MIPI_BIT_SEL(10); break; default: return -EINVAL; } ret = ov8865_write(sensor, OV8865_MIPI_BIT_SEL_REG, value); if (ret) return ret; ret = ov8865_write(sensor, OV8865_PLL_CTRLA_REG, OV8865_PLL_CTRLA_PRE_DIV_HALF(config->pll_pre_div_half)); if (ret) return ret; ret = ov8865_write(sensor, OV8865_PLL_CTRL0_REG, OV8865_PLL_CTRL0_PRE_DIV(config->pll_pre_div)); if (ret) return ret; ret = ov8865_write(sensor, OV8865_PLL_CTRL1_REG, OV8865_PLL_CTRL1_MUL_H(config->pll_mul)); if (ret) return ret; ret = ov8865_write(sensor, OV8865_PLL_CTRL2_REG, OV8865_PLL_CTRL2_MUL_L(config->pll_mul)); if (ret) return ret; ret = ov8865_write(sensor, OV8865_PLL_CTRL3_REG, OV8865_PLL_CTRL3_M_DIV(config->m_div)); if (ret) return ret; ret = ov8865_write(sensor, OV8865_PLL_CTRL4_REG, OV8865_PLL_CTRL4_MIPI_DIV(config->mipi_div)); if (ret) return ret; ret = ov8865_update_bits(sensor, OV8865_PCLK_SEL_REG, OV8865_PCLK_SEL_PCLK_DIV_MASK, OV8865_PCLK_SEL_PCLK_DIV(config->pclk_div)); if (ret) return ret; ret = ov8865_write(sensor, OV8865_PLL_CTRL5_REG, OV8865_PLL_CTRL5_SYS_PRE_DIV(config->sys_pre_div)); if (ret) return ret; ret = ov8865_write(sensor, OV8865_PLL_CTRL6_REG, OV8865_PLL_CTRL6_SYS_DIV(config->sys_div)); if (ret) return ret; return ov8865_update_bits(sensor, OV8865_PLL_CTRL1E_REG, OV8865_PLL_CTRL1E_PLL1_NO_LAT, OV8865_PLL_CTRL1E_PLL1_NO_LAT); } static int ov8865_mode_pll2_configure(struct ov8865_sensor *sensor, const struct ov8865_mode *mode) { const struct ov8865_pll2_config *config; int ret; config = mode->pll2_binning ? sensor->pll_configs->pll2_config_binning : sensor->pll_configs->pll2_config_native; ret = ov8865_write(sensor, OV8865_PLL_CTRL12_REG, OV8865_PLL_CTRL12_PRE_DIV_HALF(config->pll_pre_div_half) | OV8865_PLL_CTRL12_DAC_DIV(config->dac_div)); if (ret) return ret; ret = ov8865_write(sensor, OV8865_PLL_CTRLB_REG, OV8865_PLL_CTRLB_PRE_DIV(config->pll_pre_div)); if (ret) return ret; ret = ov8865_write(sensor, OV8865_PLL_CTRLC_REG, OV8865_PLL_CTRLC_MUL_H(config->pll_mul)); if (ret) return ret; ret = ov8865_write(sensor, OV8865_PLL_CTRLD_REG, OV8865_PLL_CTRLD_MUL_L(config->pll_mul)); if (ret) return ret; ret = ov8865_write(sensor, OV8865_PLL_CTRLF_REG, OV8865_PLL_CTRLF_SYS_PRE_DIV(config->sys_pre_div)); if (ret) return ret; return ov8865_write(sensor, OV8865_PLL_CTRLE_REG, OV8865_PLL_CTRLE_SYS_DIV(config->sys_div)); } static int ov8865_mode_sclk_configure(struct ov8865_sensor *sensor, const struct ov8865_mode *mode) { const struct ov8865_sclk_config *config = &ov8865_sclk_config_native; int ret; ret = ov8865_write(sensor, OV8865_CLK_SEL0_REG, OV8865_CLK_SEL0_PLL1_SYS_SEL(config->sys_sel)); if (ret) return ret; ret = ov8865_update_bits(sensor, OV8865_CLK_SEL1_REG, OV8865_CLK_SEL1_PLL_SCLK_SEL_MASK, OV8865_CLK_SEL1_PLL_SCLK_SEL(config->sclk_sel)); if (ret) return ret; return ov8865_write(sensor, OV8865_SCLK_CTRL_REG, OV8865_SCLK_CTRL_UNKNOWN | OV8865_SCLK_CTRL_SCLK_DIV(config->sclk_div) | OV8865_SCLK_CTRL_SCLK_PRE_DIV(config->sclk_pre_div)); } static int ov8865_mode_binning_configure(struct ov8865_sensor *sensor, const struct ov8865_mode *mode) { unsigned int variopixel_hsub_coef, variopixel_vsub_coef; u8 value; int ret; ret = ov8865_write(sensor, OV8865_FORMAT1_REG, 0); if (ret) return ret; value = OV8865_FORMAT2_HSYNC_EN; if (mode->binning_x) value |= OV8865_FORMAT2_FST_HBIN_EN; if (mode->binning_y) value |= OV8865_FORMAT2_FST_VBIN_EN; if (mode->sync_hbin) value |= OV8865_FORMAT2_SYNC_HBIN_EN; if (mode->horz_var2) value |= OV8865_FORMAT2_ISP_HORZ_VAR2_EN; ret = ov8865_write(sensor, OV8865_FORMAT2_REG, value); if (ret) return ret; ret = ov8865_update_bits(sensor, OV8865_ISP_CTRL2_REG, OV8865_ISP_CTRL2_VARIOPIXEL_EN, mode->variopixel ? OV8865_ISP_CTRL2_VARIOPIXEL_EN : 0); if (ret) return ret; if (mode->variopixel) { /* VarioPixel coefs needs to be > 1. */ variopixel_hsub_coef = mode->variopixel_hsub_coef; variopixel_vsub_coef = mode->variopixel_vsub_coef; } else { variopixel_hsub_coef = 1; variopixel_vsub_coef = 1; } ret = ov8865_write(sensor, OV8865_VAP_CTRL1_REG, OV8865_VAP_CTRL1_HSUB_COEF(variopixel_hsub_coef) | OV8865_VAP_CTRL1_VSUB_COEF(variopixel_vsub_coef)); if (ret) return ret; ret = ov8865_write(sensor, OV8865_INC_X_ODD_REG, OV8865_INC_X_ODD(mode->inc_x_odd)); if (ret) return ret; ret = ov8865_write(sensor, OV8865_INC_X_EVEN_REG, OV8865_INC_X_EVEN(mode->inc_x_even)); if (ret) return ret; ret = ov8865_write(sensor, OV8865_INC_Y_ODD_REG, OV8865_INC_Y_ODD(mode->inc_y_odd)); if (ret) return ret; return ov8865_write(sensor, OV8865_INC_Y_EVEN_REG, OV8865_INC_Y_EVEN(mode->inc_y_even)); } static int ov8865_mode_black_level_configure(struct ov8865_sensor *sensor, const struct ov8865_mode *mode) { int ret; /* Note that a zero value for blc_col_shift_mask is the default 256. */ ret = ov8865_write(sensor, OV8865_BLC_CTRL1_REG, mode->blc_col_shift_mask | OV8865_BLC_CTRL1_OFFSET_LIMIT_EN); if (ret) return ret; /* BLC top zero line */ ret = ov8865_write(sensor, OV8865_BLC_TOP_ZLINE_START_REG, OV8865_BLC_TOP_ZLINE_START(mode->blc_top_zero_line_start)); if (ret) return ret; ret = ov8865_write(sensor, OV8865_BLC_TOP_ZLINE_NUM_REG, OV8865_BLC_TOP_ZLINE_NUM(mode->blc_top_zero_line_num)); if (ret) return ret; /* BLC top black line */ ret = ov8865_write(sensor, OV8865_BLC_TOP_BLKLINE_START_REG, OV8865_BLC_TOP_BLKLINE_START(mode->blc_top_black_line_start)); if (ret) return ret; ret = ov8865_write(sensor, OV8865_BLC_TOP_BLKLINE_NUM_REG, OV8865_BLC_TOP_BLKLINE_NUM(mode->blc_top_black_line_num)); if (ret) return ret; /* BLC bottom zero line */ ret = ov8865_write(sensor, OV8865_BLC_BOT_ZLINE_START_REG, OV8865_BLC_BOT_ZLINE_START(mode->blc_bottom_zero_line_start)); if (ret) return ret; ret = ov8865_write(sensor, OV8865_BLC_BOT_ZLINE_NUM_REG, OV8865_BLC_BOT_ZLINE_NUM(mode->blc_bottom_zero_line_num)); if (ret) return ret; /* BLC bottom black line */ ret = ov8865_write(sensor, OV8865_BLC_BOT_BLKLINE_START_REG, OV8865_BLC_BOT_BLKLINE_START(mode->blc_bottom_black_line_start)); if (ret) return ret; ret = ov8865_write(sensor, OV8865_BLC_BOT_BLKLINE_NUM_REG, OV8865_BLC_BOT_BLKLINE_NUM(mode->blc_bottom_black_line_num)); if (ret) return ret; /* BLC anchor */ ret = ov8865_write(sensor, OV8865_BLC_ANCHOR_LEFT_START_H_REG, OV8865_BLC_ANCHOR_LEFT_START_H(mode->blc_anchor_left_start)); if (ret) return ret; ret = ov8865_write(sensor, OV8865_BLC_ANCHOR_LEFT_START_L_REG, OV8865_BLC_ANCHOR_LEFT_START_L(mode->blc_anchor_left_start)); if (ret) return ret; ret = ov8865_write(sensor, OV8865_BLC_ANCHOR_LEFT_END_H_REG, OV8865_BLC_ANCHOR_LEFT_END_H(mode->blc_anchor_left_end)); if (ret) return ret; ret = ov8865_write(sensor, OV8865_BLC_ANCHOR_LEFT_END_L_REG, OV8865_BLC_ANCHOR_LEFT_END_L(mode->blc_anchor_left_end)); if (ret) return ret; ret = ov8865_write(sensor, OV8865_BLC_ANCHOR_RIGHT_START_H_REG, OV8865_BLC_ANCHOR_RIGHT_START_H(mode->blc_anchor_right_start)); if (ret) return ret; ret = ov8865_write(sensor, OV8865_BLC_ANCHOR_RIGHT_START_L_REG, OV8865_BLC_ANCHOR_RIGHT_START_L(mode->blc_anchor_right_start)); if (ret) return ret; ret = ov8865_write(sensor, OV8865_BLC_ANCHOR_RIGHT_END_H_REG, OV8865_BLC_ANCHOR_RIGHT_END_H(mode->blc_anchor_right_end)); if (ret) return ret; return ov8865_write(sensor, OV8865_BLC_ANCHOR_RIGHT_END_L_REG, OV8865_BLC_ANCHOR_RIGHT_END_L(mode->blc_anchor_right_end)); } static int ov8865_mode_configure(struct ov8865_sensor *sensor, const struct ov8865_mode *mode, u32 mbus_code) { int ret; /* Output Size X */ ret = ov8865_write(sensor, OV8865_OUTPUT_SIZE_X_H_REG, OV8865_OUTPUT_SIZE_X_H(mode->output_size_x)); if (ret) return ret; ret = ov8865_write(sensor, OV8865_OUTPUT_SIZE_X_L_REG, OV8865_OUTPUT_SIZE_X_L(mode->output_size_x)); if (ret) return ret; /* Horizontal Total Size */ ret = ov8865_write(sensor, OV8865_HTS_H_REG, OV8865_HTS_H(mode->hts)); if (ret) return ret; ret = ov8865_write(sensor, OV8865_HTS_L_REG, OV8865_HTS_L(mode->hts)); if (ret) return ret; /* Output Size Y */ ret = ov8865_write(sensor, OV8865_OUTPUT_SIZE_Y_H_REG, OV8865_OUTPUT_SIZE_Y_H(mode->output_size_y)); if (ret) return ret; ret = ov8865_write(sensor, OV8865_OUTPUT_SIZE_Y_L_REG, OV8865_OUTPUT_SIZE_Y_L(mode->output_size_y)); if (ret) return ret; /* Vertical Total Size */ ret = ov8865_write(sensor, OV8865_VTS_H_REG, OV8865_VTS_H(mode->vts)); if (ret) return ret; ret = ov8865_write(sensor, OV8865_VTS_L_REG, OV8865_VTS_L(mode->vts)); if (ret) return ret; if (mode->size_auto) { /* Auto Size */ ret = ov8865_write(sensor, OV8865_AUTO_SIZE_CTRL_REG, OV8865_AUTO_SIZE_CTRL_OFFSET_Y_REG | OV8865_AUTO_SIZE_CTRL_OFFSET_X_REG | OV8865_AUTO_SIZE_CTRL_CROP_END_Y_REG | OV8865_AUTO_SIZE_CTRL_CROP_END_X_REG | OV8865_AUTO_SIZE_CTRL_CROP_START_Y_REG | OV8865_AUTO_SIZE_CTRL_CROP_START_X_REG); if (ret) return ret; ret = ov8865_write(sensor, OV8865_AUTO_SIZE_BOUNDARIES_REG, OV8865_AUTO_SIZE_BOUNDARIES_Y(mode->size_auto_boundary_y) | OV8865_AUTO_SIZE_BOUNDARIES_X(mode->size_auto_boundary_x)); if (ret) return ret; } else { /* Crop Start X */ ret = ov8865_write(sensor, OV8865_CROP_START_X_H_REG, OV8865_CROP_START_X_H(mode->crop_start_x)); if (ret) return ret; ret = ov8865_write(sensor, OV8865_CROP_START_X_L_REG, OV8865_CROP_START_X_L(mode->crop_start_x)); if (ret) return ret; /* Offset X */ ret = ov8865_write(sensor, OV8865_OFFSET_X_H_REG, OV8865_OFFSET_X_H(mode->offset_x)); if (ret) return ret; ret = ov8865_write(sensor, OV8865_OFFSET_X_L_REG, OV8865_OFFSET_X_L(mode->offset_x)); if (ret) return ret; /* Crop End X */ ret = ov8865_write(sensor, OV8865_CROP_END_X_H_REG, OV8865_CROP_END_X_H(mode->crop_end_x)); if (ret) return ret; ret = ov8865_write(sensor, OV8865_CROP_END_X_L_REG, OV8865_CROP_END_X_L(mode->crop_end_x)); if (ret) return ret; /* Crop Start Y */ ret = ov8865_write(sensor, OV8865_CROP_START_Y_H_REG, OV8865_CROP_START_Y_H(mode->crop_start_y)); if (ret) return ret; ret = ov8865_write(sensor, OV8865_CROP_START_Y_L_REG, OV8865_CROP_START_Y_L(mode->crop_start_y)); if (ret) return ret; /* Offset Y */ ret = ov8865_write(sensor, OV8865_OFFSET_Y_H_REG, OV8865_OFFSET_Y_H(mode->offset_y)); if (ret) return ret; ret = ov8865_write(sensor, OV8865_OFFSET_Y_L_REG, OV8865_OFFSET_Y_L(mode->offset_y)); if (ret) return ret; /* Crop End Y */ ret = ov8865_write(sensor, OV8865_CROP_END_Y_H_REG, OV8865_CROP_END_Y_H(mode->crop_end_y)); if (ret) return ret; ret = ov8865_write(sensor, OV8865_CROP_END_Y_L_REG, OV8865_CROP_END_Y_L(mode->crop_end_y)); if (ret) return ret; } /* VFIFO */ ret = ov8865_write(sensor, OV8865_VFIFO_READ_START_H_REG, OV8865_VFIFO_READ_START_H(mode->vfifo_read_start)); if (ret) return ret; ret = ov8865_write(sensor, OV8865_VFIFO_READ_START_L_REG, OV8865_VFIFO_READ_START_L(mode->vfifo_read_start)); if (ret) return ret; ret = ov8865_write(sensor, OV8865_ABLC_NUM_REG, OV8865_ABLC_NUM(mode->ablc_num)); if (ret) return ret; ret = ov8865_write(sensor, OV8865_ZLINE_NUM_REG, OV8865_ZLINE_NUM(mode->zline_num)); if (ret) return ret; /* Binning */ ret = ov8865_mode_binning_configure(sensor, mode); if (ret) return ret; /* Black Level */ ret = ov8865_mode_black_level_configure(sensor, mode); if (ret) return ret; /* PLLs */ ret = ov8865_mode_pll1_configure(sensor, mode, mbus_code); if (ret) return ret; ret = ov8865_mode_pll2_configure(sensor, mode); if (ret) return ret; ret = ov8865_mode_sclk_configure(sensor, mode); if (ret) return ret; /* Extra registers */ if (mode->register_values) { ret = ov8865_write_sequence(sensor, mode->register_values, mode->register_values_count); if (ret) return ret; } return 0; } static unsigned long ov8865_mode_mipi_clk_rate(struct ov8865_sensor *sensor, const struct ov8865_mode *mode) { const struct ov8865_pll1_config *config; unsigned long pll1_rate; config = sensor->pll_configs->pll1_config; pll1_rate = ov8865_mode_pll1_rate(sensor, mode); return pll1_rate / config->m_div / 2; } /* Exposure */ static int ov8865_exposure_configure(struct ov8865_sensor *sensor, u32 exposure) { int ret; /* The sensor stores exposure in units of 1/16th of a line */ exposure *= 16; ret = ov8865_write(sensor, OV8865_EXPOSURE_CTRL_HH_REG, OV8865_EXPOSURE_CTRL_HH(exposure)); if (ret) return ret; ret = ov8865_write(sensor, OV8865_EXPOSURE_CTRL_H_REG, OV8865_EXPOSURE_CTRL_H(exposure)); if (ret) return ret; return ov8865_write(sensor, OV8865_EXPOSURE_CTRL_L_REG, OV8865_EXPOSURE_CTRL_L(exposure)); } /* Gain */ static int ov8865_analog_gain_configure(struct ov8865_sensor *sensor, u32 gain) { int ret; ret = ov8865_write(sensor, OV8865_GAIN_CTRL_H_REG, OV8865_GAIN_CTRL_H(gain)); if (ret) return ret; return ov8865_write(sensor, OV8865_GAIN_CTRL_L_REG, OV8865_GAIN_CTRL_L(gain)); } /* White Balance */ static int ov8865_red_balance_configure(struct ov8865_sensor *sensor, u32 red_balance) { int ret; ret = ov8865_write(sensor, OV8865_ISP_GAIN_RED_H_REG, OV8865_ISP_GAIN_RED_H(red_balance)); if (ret) return ret; return ov8865_write(sensor, OV8865_ISP_GAIN_RED_L_REG, OV8865_ISP_GAIN_RED_L(red_balance)); } static int ov8865_blue_balance_configure(struct ov8865_sensor *sensor, u32 blue_balance) { int ret; ret = ov8865_write(sensor, OV8865_ISP_GAIN_BLUE_H_REG, OV8865_ISP_GAIN_BLUE_H(blue_balance)); if (ret) return ret; return ov8865_write(sensor, OV8865_ISP_GAIN_BLUE_L_REG, OV8865_ISP_GAIN_BLUE_L(blue_balance)); } /* Flip */ static int ov8865_flip_vert_configure(struct ov8865_sensor *sensor, bool enable) { u8 bits = OV8865_FORMAT1_FLIP_VERT_ISP_EN | OV8865_FORMAT1_FLIP_VERT_SENSOR_EN; return ov8865_update_bits(sensor, OV8865_FORMAT1_REG, bits, enable ? bits : 0); } static int ov8865_flip_horz_configure(struct ov8865_sensor *sensor, bool enable) { u8 bits = OV8865_FORMAT2_FLIP_HORZ_ISP_EN | OV8865_FORMAT2_FLIP_HORZ_SENSOR_EN; return ov8865_update_bits(sensor, OV8865_FORMAT2_REG, bits, enable ? bits : 0); } /* Test Pattern */ static int ov8865_test_pattern_configure(struct ov8865_sensor *sensor, unsigned int index) { if (index >= ARRAY_SIZE(ov8865_test_pattern_bits)) return -EINVAL; return ov8865_write(sensor, OV8865_PRE_CTRL0_REG, ov8865_test_pattern_bits[index]); } /* Blanking */ static int ov8865_vts_configure(struct ov8865_sensor *sensor, u32 vblank) { u16 vts = sensor->state.mode->output_size_y + vblank; int ret; ret = ov8865_write(sensor, OV8865_VTS_H_REG, OV8865_VTS_H(vts)); if (ret) return ret; return ov8865_write(sensor, OV8865_VTS_L_REG, OV8865_VTS_L(vts)); } /* State */ static int ov8865_state_mipi_configure(struct ov8865_sensor *sensor, const struct ov8865_mode *mode, u32 mbus_code) { struct ov8865_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 = ov8865_mode_mipi_clk_rate(sensor, mode); if (!mipi_clk_rate) return -EINVAL; for (i = 0; i < ARRAY_SIZE(ov8865_link_freq_menu); i++) { s64 freq = ov8865_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(ov8865_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_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 ov8865_state_configure(struct ov8865_sensor *sensor, const struct ov8865_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 = ov8865_mode_configure(sensor, mode, mbus_code); if (ret) return ret; } ret = ov8865_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 ov8865_state_init(struct ov8865_sensor *sensor) { return ov8865_state_configure(sensor, &ov8865_modes[0], ov8865_mbus_codes[0]); } /* Sensor Base */ static int ov8865_sensor_init(struct ov8865_sensor *sensor) { int ret; ret = ov8865_sw_reset(sensor); if (ret) { dev_err(sensor->dev, "failed to perform sw reset\n"); return ret; } ret = ov8865_sw_standby(sensor, 1); if (ret) { dev_err(sensor->dev, "failed to set sensor standby\n"); return ret; } ret = ov8865_chip_id_check(sensor); if (ret) { dev_err(sensor->dev, "failed to check sensor chip id\n"); return ret; } ret = ov8865_write_sequence(sensor, ov8865_init_sequence, ARRAY_SIZE(ov8865_init_sequence)); if (ret) { dev_err(sensor->dev, "failed to write init sequence\n"); return ret; } ret = ov8865_charge_pump_configure(sensor); if (ret) { dev_err(sensor->dev, "failed to configure pad\n"); return ret; } ret = ov8865_mipi_configure(sensor); if (ret) { dev_err(sensor->dev, "failed to configure MIPI\n"); return ret; } ret = ov8865_isp_configure(sensor); if (ret) { dev_err(sensor->dev, "failed to configure ISP\n"); return ret; } ret = ov8865_black_level_configure(sensor); if (ret) { dev_err(sensor->dev, "failed to configure black level\n"); return ret; } /* Configure current mode. */ ret = ov8865_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 ov8865_sensor_power(struct ov8865_sensor *sensor, bool on) { /* Keep initialized to zero for disable label. */ int ret = 0; 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"); return ret; } ret = regulator_enable(sensor->avdd); if (ret) { dev_err(sensor->dev, "failed to enable AVDD regulator\n"); goto disable_dovdd; } ret = regulator_enable(sensor->dvdd); if (ret) { dev_err(sensor->dev, "failed to enable DVDD regulator\n"); goto disable_avdd; } ret = clk_prepare_enable(sensor->extclk); if (ret) { dev_err(sensor->dev, "failed to enable EXTCLK clock\n"); goto disable_dvdd; } gpiod_set_value_cansleep(sensor->reset, 0); gpiod_set_value_cansleep(sensor->powerdown, 0); /* Time to enter streaming mode according to power timings. */ usleep_range(10000, 12000); } else { gpiod_set_value_cansleep(sensor->powerdown, 1); gpiod_set_value_cansleep(sensor->reset, 1); clk_disable_unprepare(sensor->extclk); disable_dvdd: regulator_disable(sensor->dvdd); disable_avdd: regulator_disable(sensor->avdd); disable_dovdd: regulator_disable(sensor->dovdd); } return ret; } /* Controls */ static int ov8865_s_ctrl(struct v4l2_ctrl *ctrl) { struct v4l2_subdev *subdev = ov8865_ctrl_subdev(ctrl); struct ov8865_sensor *sensor = ov8865_subdev_sensor(subdev); unsigned int index; int ret; /* If VBLANK is altered we need to update exposure to compensate */ if (ctrl->id == V4L2_CID_VBLANK) { int exposure_max; exposure_max = sensor->state.mode->output_size_y + ctrl->val - OV8865_INTEGRATION_TIME_MARGIN; __v4l2_ctrl_modify_range(sensor->ctrls.exposure, sensor->ctrls.exposure->minimum, exposure_max, sensor->ctrls.exposure->step, min(sensor->ctrls.exposure->val, exposure_max)); } /* 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: ret = ov8865_exposure_configure(sensor, ctrl->val); if (ret) return ret; break; case V4L2_CID_ANALOGUE_GAIN: ret = ov8865_analog_gain_configure(sensor, ctrl->val); if (ret) return ret; break; case V4L2_CID_RED_BALANCE: return ov8865_red_balance_configure(sensor, ctrl->val); case V4L2_CID_BLUE_BALANCE: return ov8865_blue_balance_configure(sensor, ctrl->val); case V4L2_CID_HFLIP: return ov8865_flip_horz_configure(sensor, !!ctrl->val); case V4L2_CID_VFLIP: return ov8865_flip_vert_configure(sensor, !!ctrl->val); case V4L2_CID_TEST_PATTERN: index = (unsigned int)ctrl->val; return ov8865_test_pattern_configure(sensor, index); case V4L2_CID_VBLANK: return ov8865_vts_configure(sensor, ctrl->val); default: return -EINVAL; } return 0; } static const struct v4l2_ctrl_ops ov8865_ctrl_ops = { .s_ctrl = ov8865_s_ctrl, }; static int ov8865_ctrls_init(struct ov8865_sensor *sensor) { struct ov8865_ctrls *ctrls = &sensor->ctrls; struct v4l2_ctrl_handler *handler = &ctrls->handler; const struct v4l2_ctrl_ops *ops = &ov8865_ctrl_ops; const struct ov8865_mode *mode = &ov8865_modes[0]; struct v4l2_fwnode_device_properties props; unsigned int vblank_max, vblank_def; unsigned int hblank; int ret; v4l2_ctrl_handler_init(handler, 32); /* Use our mutex for ctrl locking. */ handler->lock = &sensor->mutex; /* Exposure */ ctrls->exposure = v4l2_ctrl_new_std(handler, ops, V4L2_CID_EXPOSURE, 2, 65535, 1, 32); /* Gain */ v4l2_ctrl_new_std(handler, ops, V4L2_CID_ANALOGUE_GAIN, 128, 2048, 128, 128); /* White Balance */ v4l2_ctrl_new_std(handler, ops, V4L2_CID_RED_BALANCE, 1, 32767, 1, 1024); v4l2_ctrl_new_std(handler, ops, V4L2_CID_BLUE_BALANCE, 1, 32767, 1, 1024); /* 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(ov8865_test_pattern_menu) - 1, 0, 0, ov8865_test_pattern_menu); /* Blanking */ hblank = mode->hts - mode->output_size_x; ctrls->hblank = v4l2_ctrl_new_std(handler, ops, V4L2_CID_HBLANK, hblank, hblank, 1, hblank); if (ctrls->hblank) ctrls->hblank->flags |= V4L2_CTRL_FLAG_READ_ONLY; vblank_max = OV8865_TIMING_MAX_VTS - mode->output_size_y; vblank_def = mode->vts - mode->output_size_y; ctrls->vblank = v4l2_ctrl_new_std(handler, ops, V4L2_CID_VBLANK, OV8865_TIMING_MIN_VTS, vblank_max, 1, vblank_def); /* MIPI CSI-2 */ ctrls->link_freq = v4l2_ctrl_new_int_menu(handler, NULL, V4L2_CID_LINK_FREQ, ARRAY_SIZE(ov8865_link_freq_menu) - 1, 0, ov8865_link_freq_menu); ctrls->pixel_rate = v4l2_ctrl_new_std(handler, NULL, V4L2_CID_PIXEL_RATE, 1, INT_MAX, 1, 1); /* set properties from fwnode (e.g. rotation, orientation) */ ret = v4l2_fwnode_device_parse(sensor->dev, &props); if (ret) goto error_ctrls; ret = v4l2_ctrl_new_fwnode_properties(handler, ops, &props); if (ret) goto error_ctrls; if (handler->error) { ret = handler->error; goto error_ctrls; } 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 ov8865_s_stream(struct v4l2_subdev *subdev, int enable) { struct ov8865_sensor *sensor = ov8865_subdev_sensor(subdev); struct ov8865_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 = ov8865_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 ov8865_g_frame_interval(struct v4l2_subdev *subdev, struct v4l2_subdev_frame_interval *interval) { struct ov8865_sensor *sensor = ov8865_subdev_sensor(subdev); const struct ov8865_mode *mode; unsigned int framesize; unsigned int fps; mutex_lock(&sensor->mutex); mode = sensor->state.mode; framesize = mode->hts * (mode->output_size_y + sensor->ctrls.vblank->val); fps = DIV_ROUND_CLOSEST(sensor->ctrls.pixel_rate->val, framesize); interval->interval.numerator = 1; interval->interval.denominator = fps; mutex_unlock(&sensor->mutex); return 0; } static const struct v4l2_subdev_video_ops ov8865_subdev_video_ops = { .s_stream = ov8865_s_stream, .g_frame_interval = ov8865_g_frame_interval, .s_frame_interval = ov8865_g_frame_interval, }; /* Subdev Pad Operations */ static int ov8865_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(ov8865_mbus_codes)) return -EINVAL; code_enum->code = ov8865_mbus_codes[code_enum->index]; return 0; } static void ov8865_mbus_format_fill(struct v4l2_mbus_framefmt *mbus_format, u32 mbus_code, const struct ov8865_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 ov8865_get_fmt(struct v4l2_subdev *subdev, struct v4l2_subdev_state *sd_state, struct v4l2_subdev_format *format) { struct ov8865_sensor *sensor = ov8865_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 ov8865_mbus_format_fill(mbus_format, sensor->state.mbus_code, sensor->state.mode); mutex_unlock(&sensor->mutex); return 0; } static int ov8865_set_fmt(struct v4l2_subdev *subdev, struct v4l2_subdev_state *sd_state, struct v4l2_subdev_format *format) { struct ov8865_sensor *sensor = ov8865_subdev_sensor(subdev); struct v4l2_mbus_framefmt *mbus_format = &format->format; const struct ov8865_mode *mode; u32 mbus_code = 0; unsigned int hblank; unsigned int index; int exposure_max; 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(ov8865_mbus_codes); index++) { if (ov8865_mbus_codes[index] == mbus_format->code) { mbus_code = mbus_format->code; break; } } /* Fallback to default. */ if (!mbus_code) mbus_code = ov8865_mbus_codes[0]; /* Find the mode with nearest dimensions. */ mode = v4l2_find_nearest_size(ov8865_modes, ARRAY_SIZE(ov8865_modes), output_size_x, output_size_y, mbus_format->width, mbus_format->height); if (!mode) { ret = -EINVAL; goto complete; } ov8865_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 = ov8865_state_configure(sensor, mode, mbus_code); __v4l2_ctrl_modify_range(sensor->ctrls.vblank, OV8865_TIMING_MIN_VTS, OV8865_TIMING_MAX_VTS - mode->output_size_y, 1, mode->vts - mode->output_size_y); hblank = mode->hts - mode->output_size_x; __v4l2_ctrl_modify_range(sensor->ctrls.hblank, hblank, hblank, 1, hblank); exposure_max = mode->vts - OV8865_INTEGRATION_TIME_MARGIN; __v4l2_ctrl_modify_range(sensor->ctrls.exposure, sensor->ctrls.exposure->minimum, exposure_max, sensor->ctrls.exposure->step, min(sensor->ctrls.exposure->val, exposure_max)); complete: mutex_unlock(&sensor->mutex); return ret; } static int ov8865_enum_frame_size(struct v4l2_subdev *subdev, struct v4l2_subdev_state *sd_state, struct v4l2_subdev_frame_size_enum *size_enum) { const struct ov8865_mode *mode; if (size_enum->index >= ARRAY_SIZE(ov8865_modes)) return -EINVAL; mode = &ov8865_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 void __ov8865_get_pad_crop(struct ov8865_sensor *sensor, struct v4l2_subdev_state *state, unsigned int pad, enum v4l2_subdev_format_whence which, struct v4l2_rect *r) { const struct ov8865_mode *mode = sensor->state.mode; switch (which) { case V4L2_SUBDEV_FORMAT_TRY: *r = *v4l2_subdev_get_try_crop(&sensor->subdev, state, pad); break; case V4L2_SUBDEV_FORMAT_ACTIVE: r->height = mode->output_size_y; r->width = mode->output_size_x; r->top = (OV8865_NATIVE_HEIGHT - mode->output_size_y) / 2; r->left = (OV8865_NATIVE_WIDTH - mode->output_size_x) / 2; break; } } static int ov8865_get_selection(struct v4l2_subdev *subdev, struct v4l2_subdev_state *state, struct v4l2_subdev_selection *sel) { struct ov8865_sensor *sensor = ov8865_subdev_sensor(subdev); switch (sel->target) { case V4L2_SEL_TGT_CROP: mutex_lock(&sensor->mutex); __ov8865_get_pad_crop(sensor, state, sel->pad, sel->which, &sel->r); mutex_unlock(&sensor->mutex); break; case V4L2_SEL_TGT_NATIVE_SIZE: sel->r.top = 0; sel->r.left = 0; sel->r.width = OV8865_NATIVE_WIDTH; sel->r.height = OV8865_NATIVE_HEIGHT; break; case V4L2_SEL_TGT_CROP_BOUNDS: case V4L2_SEL_TGT_CROP_DEFAULT: sel->r.top = OV8865_ACTIVE_START_TOP; sel->r.left = OV8865_ACTIVE_START_LEFT; sel->r.width = OV8865_ACTIVE_WIDTH; sel->r.height = OV8865_ACTIVE_HEIGHT; break; default: return -EINVAL; } return 0; } static const struct v4l2_subdev_pad_ops ov8865_subdev_pad_ops = { .enum_mbus_code = ov8865_enum_mbus_code, .get_fmt = ov8865_get_fmt, .set_fmt = ov8865_set_fmt, .enum_frame_size = ov8865_enum_frame_size, .get_selection = ov8865_get_selection, .set_selection = ov8865_get_selection, }; static const struct v4l2_subdev_ops ov8865_subdev_ops = { .video = &ov8865_subdev_video_ops, .pad = &ov8865_subdev_pad_ops, }; static int ov8865_suspend(struct device *dev) { struct i2c_client *client = to_i2c_client(dev); struct v4l2_subdev *subdev = i2c_get_clientdata(client); struct ov8865_sensor *sensor = ov8865_subdev_sensor(subdev); struct ov8865_state *state = &sensor->state; int ret = 0; mutex_lock(&sensor->mutex); if (state->streaming) { ret = ov8865_sw_standby(sensor, true); if (ret) goto complete; } ret = ov8865_sensor_power(sensor, false); if (ret) ov8865_sw_standby(sensor, false); complete: mutex_unlock(&sensor->mutex); return ret; } static int ov8865_resume(struct device *dev) { struct i2c_client *client = to_i2c_client(dev); struct v4l2_subdev *subdev = i2c_get_clientdata(client); struct ov8865_sensor *sensor = ov8865_subdev_sensor(subdev); struct ov8865_state *state = &sensor->state; int ret = 0; mutex_lock(&sensor->mutex); ret = ov8865_sensor_power(sensor, true); if (ret) goto complete; ret = ov8865_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 = ov8865_sw_standby(sensor, false); if (ret) goto error_power; } goto complete; error_power: ov8865_sensor_power(sensor, false); complete: mutex_unlock(&sensor->mutex); return ret; } static int ov8865_probe(struct i2c_client *client) { struct device *dev = &client->dev; struct fwnode_handle *handle; struct ov8865_sensor *sensor; struct v4l2_subdev *subdev; struct media_pad *pad; unsigned int rate = 0; unsigned int i; int ret; sensor = devm_kzalloc(dev, sizeof(*sensor), GFP_KERNEL); if (!sensor) return -ENOMEM; sensor->dev = dev; sensor->i2c_client = client; /* Regulators */ /* DVDD: digital core */ sensor->dvdd = devm_regulator_get(dev, "dvdd"); if (IS_ERR(sensor->dvdd)) return dev_err_probe(dev, PTR_ERR(sensor->dvdd), "cannot get DVDD regulator\n"); /* DOVDD: digital I/O */ sensor->dovdd = devm_regulator_get(dev, "dovdd"); if (IS_ERR(sensor->dovdd)) return dev_err_probe(dev, PTR_ERR(sensor->dovdd), "cannot get DOVDD regulator\n"); /* AVDD: analog */ sensor->avdd = devm_regulator_get(dev, "avdd"); if (IS_ERR(sensor->avdd)) return dev_err_probe(dev, PTR_ERR(sensor->avdd), "cannot get AVDD (analog) regulator\n"); /* Graph Endpoint */ handle = fwnode_graph_get_next_endpoint(dev_fwnode(dev), NULL); if (!handle) return -EPROBE_DEFER; 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; } /* External Clock */ sensor->extclk = devm_clk_get(dev, NULL); if (PTR_ERR(sensor->extclk) == -ENOENT) { dev_info(dev, "no external clock found, continuing...\n"); sensor->extclk = NULL; } else if (IS_ERR(sensor->extclk)) { dev_err(dev, "failed to get external clock\n"); ret = PTR_ERR(sensor->extclk); goto error_endpoint; } /* * We could have either a 24MHz or 19.2MHz clock rate from either dt or * ACPI...but we also need to support the weird IPU3 case which will * have an external clock AND a clock-frequency property. Check for the * clock-frequency property and if found, set that rate if we managed * to acquire a clock. This should cover the ACPI case. If the system * uses devicetree then the configured rate should already be set, so * we can just read it. */ ret = fwnode_property_read_u32(dev_fwnode(dev), "clock-frequency", &rate); if (!ret && sensor->extclk) { ret = clk_set_rate(sensor->extclk, rate); if (ret) { dev_err_probe(dev, ret, "failed to set clock rate\n"); goto error_endpoint; } } else if (ret && !sensor->extclk) { dev_err_probe(dev, ret, "invalid clock config\n"); goto error_endpoint; } sensor->extclk_rate = rate ? rate : clk_get_rate(sensor->extclk); for (i = 0; i < ARRAY_SIZE(supported_extclk_rates); i++) { if (sensor->extclk_rate == supported_extclk_rates[i]) break; } if (i == ARRAY_SIZE(supported_extclk_rates)) { dev_err(dev, "clock rate %lu Hz is unsupported\n", sensor->extclk_rate); ret = -EINVAL; goto error_endpoint; } sensor->pll_configs = ov8865_pll_configs[i]; /* Subdev, entity and pad */ subdev = &sensor->subdev; v4l2_i2c_subdev_init(subdev, client, &ov8865_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 = ov8865_ctrls_init(sensor); if (ret) goto error_mutex; mutex_lock(&sensor->mutex); ret = ov8865_state_init(sensor); mutex_unlock(&sensor->mutex); if (ret) goto error_ctrls; /* Runtime PM */ pm_runtime_set_suspended(sensor->dev); pm_runtime_enable(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 void ov8865_remove(struct i2c_client *client) { struct v4l2_subdev *subdev = i2c_get_clientdata(client); struct ov8865_sensor *sensor = ov8865_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); v4l2_fwnode_endpoint_free(&sensor->endpoint); } static const struct dev_pm_ops ov8865_pm_ops = { SET_RUNTIME_PM_OPS(ov8865_suspend, ov8865_resume, NULL) }; static const struct acpi_device_id ov8865_acpi_match[] = { {"INT347A"}, { } }; MODULE_DEVICE_TABLE(acpi, ov8865_acpi_match); static const struct of_device_id ov8865_of_match[] = { { .compatible = "ovti,ov8865" }, { } }; MODULE_DEVICE_TABLE(of, ov8865_of_match); static struct i2c_driver ov8865_driver = { .driver = { .name = "ov8865", .of_match_table = ov8865_of_match, .acpi_match_table = ov8865_acpi_match, .pm = &ov8865_pm_ops, }, .probe = ov8865_probe, .remove = ov8865_remove, }; module_i2c_driver(ov8865_driver); MODULE_AUTHOR("Paul Kocialkowski <paul.kocialkowski@bootlin.com>"); MODULE_DESCRIPTION("V4L2 driver for the OmniVision OV8865 image sensor"); MODULE_LICENSE("GPL v2");
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