/* * Omnivision OV2659 CMOS Image Sensor driver * * Copyright (C) 2015 Texas Instruments, Inc. * * Benoit Parrot <bparrot@ti.com> * Lad, Prabhakar <prabhakar.csengg@gmail.com> * * This program is free software; you may redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; version 2 of the License. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE * SOFTWARE. */ #include <linux/clk.h> #include <linux/delay.h> #include <linux/err.h> #include <linux/init.h> #include <linux/interrupt.h> #include <linux/io.h> #include <linux/i2c.h> #include <linux/kernel.h> #include <linux/media.h> #include <linux/module.h> #include <linux/of.h> #include <linux/of_graph.h> #include <linux/slab.h> #include <linux/uaccess.h> #include <linux/videodev2.h> #include <media/media-entity.h> #include <media/i2c/ov2659.h> #include <media/v4l2-common.h> #include <media/v4l2-ctrls.h> #include <media/v4l2-device.h> #include <media/v4l2-event.h> #include <media/v4l2-image-sizes.h> #include <media/v4l2-mediabus.h> #include <media/v4l2-of.h> #include <media/v4l2-subdev.h> #define DRIVER_NAME "ov2659" /* * OV2659 register definitions */ #define REG_SOFTWARE_STANDBY 0x0100 #define REG_SOFTWARE_RESET 0x0103 #define REG_IO_CTRL00 0x3000 #define REG_IO_CTRL01 0x3001 #define REG_IO_CTRL02 0x3002 #define REG_OUTPUT_VALUE00 0x3008 #define REG_OUTPUT_VALUE01 0x3009 #define REG_OUTPUT_VALUE02 0x300d #define REG_OUTPUT_SELECT00 0x300e #define REG_OUTPUT_SELECT01 0x300f #define REG_OUTPUT_SELECT02 0x3010 #define REG_OUTPUT_DRIVE 0x3011 #define REG_INPUT_READOUT00 0x302d #define REG_INPUT_READOUT01 0x302e #define REG_INPUT_READOUT02 0x302f #define REG_SC_PLL_CTRL0 0x3003 #define REG_SC_PLL_CTRL1 0x3004 #define REG_SC_PLL_CTRL2 0x3005 #define REG_SC_PLL_CTRL3 0x3006 #define REG_SC_CHIP_ID_H 0x300a #define REG_SC_CHIP_ID_L 0x300b #define REG_SC_PWC 0x3014 #define REG_SC_CLKRST0 0x301a #define REG_SC_CLKRST1 0x301b #define REG_SC_CLKRST2 0x301c #define REG_SC_CLKRST3 0x301d #define REG_SC_SUB_ID 0x302a #define REG_SC_SCCB_ID 0x302b #define REG_GROUP_ADDRESS_00 0x3200 #define REG_GROUP_ADDRESS_01 0x3201 #define REG_GROUP_ADDRESS_02 0x3202 #define REG_GROUP_ADDRESS_03 0x3203 #define REG_GROUP_ACCESS 0x3208 #define REG_AWB_R_GAIN_H 0x3400 #define REG_AWB_R_GAIN_L 0x3401 #define REG_AWB_G_GAIN_H 0x3402 #define REG_AWB_G_GAIN_L 0x3403 #define REG_AWB_B_GAIN_H 0x3404 #define REG_AWB_B_GAIN_L 0x3405 #define REG_AWB_MANUAL_CONTROL 0x3406 #define REG_TIMING_HS_H 0x3800 #define REG_TIMING_HS_L 0x3801 #define REG_TIMING_VS_H 0x3802 #define REG_TIMING_VS_L 0x3803 #define REG_TIMING_HW_H 0x3804 #define REG_TIMING_HW_L 0x3805 #define REG_TIMING_VH_H 0x3806 #define REG_TIMING_VH_L 0x3807 #define REG_TIMING_DVPHO_H 0x3808 #define REG_TIMING_DVPHO_L 0x3809 #define REG_TIMING_DVPVO_H 0x380a #define REG_TIMING_DVPVO_L 0x380b #define REG_TIMING_HTS_H 0x380c #define REG_TIMING_HTS_L 0x380d #define REG_TIMING_VTS_H 0x380e #define REG_TIMING_VTS_L 0x380f #define REG_TIMING_HOFFS_H 0x3810 #define REG_TIMING_HOFFS_L 0x3811 #define REG_TIMING_VOFFS_H 0x3812 #define REG_TIMING_VOFFS_L 0x3813 #define REG_TIMING_XINC 0x3814 #define REG_TIMING_YINC 0x3815 #define REG_TIMING_VERT_FORMAT 0x3820 #define REG_TIMING_HORIZ_FORMAT 0x3821 #define REG_FORMAT_CTRL00 0x4300 #define REG_VFIFO_READ_START_H 0x4608 #define REG_VFIFO_READ_START_L 0x4609 #define REG_DVP_CTRL02 0x4708 #define REG_ISP_CTRL00 0x5000 #define REG_ISP_CTRL01 0x5001 #define REG_ISP_CTRL02 0x5002 #define REG_LENC_RED_X0_H 0x500c #define REG_LENC_RED_X0_L 0x500d #define REG_LENC_RED_Y0_H 0x500e #define REG_LENC_RED_Y0_L 0x500f #define REG_LENC_RED_A1 0x5010 #define REG_LENC_RED_B1 0x5011 #define REG_LENC_RED_A2_B2 0x5012 #define REG_LENC_GREEN_X0_H 0x5013 #define REG_LENC_GREEN_X0_L 0x5014 #define REG_LENC_GREEN_Y0_H 0x5015 #define REG_LENC_GREEN_Y0_L 0x5016 #define REG_LENC_GREEN_A1 0x5017 #define REG_LENC_GREEN_B1 0x5018 #define REG_LENC_GREEN_A2_B2 0x5019 #define REG_LENC_BLUE_X0_H 0x501a #define REG_LENC_BLUE_X0_L 0x501b #define REG_LENC_BLUE_Y0_H 0x501c #define REG_LENC_BLUE_Y0_L 0x501d #define REG_LENC_BLUE_A1 0x501e #define REG_LENC_BLUE_B1 0x501f #define REG_LENC_BLUE_A2_B2 0x5020 #define REG_AWB_CTRL00 0x5035 #define REG_AWB_CTRL01 0x5036 #define REG_AWB_CTRL02 0x5037 #define REG_AWB_CTRL03 0x5038 #define REG_AWB_CTRL04 0x5039 #define REG_AWB_LOCAL_LIMIT 0x503a #define REG_AWB_CTRL12 0x5049 #define REG_AWB_CTRL13 0x504a #define REG_AWB_CTRL14 0x504b #define REG_SHARPENMT_THRESH1 0x5064 #define REG_SHARPENMT_THRESH2 0x5065 #define REG_SHARPENMT_OFFSET1 0x5066 #define REG_SHARPENMT_OFFSET2 0x5067 #define REG_DENOISE_THRESH1 0x5068 #define REG_DENOISE_THRESH2 0x5069 #define REG_DENOISE_OFFSET1 0x506a #define REG_DENOISE_OFFSET2 0x506b #define REG_SHARPEN_THRESH1 0x506c #define REG_SHARPEN_THRESH2 0x506d #define REG_CIP_CTRL00 0x506e #define REG_CIP_CTRL01 0x506f #define REG_CMX_SIGN 0x5079 #define REG_CMX_MISC_CTRL 0x507a #define REG_PRE_ISP_CTRL00 0x50a0 #define TEST_PATTERN_ENABLE BIT(7) #define VERTICAL_COLOR_BAR_MASK 0x53 #define REG_NULL 0x0000 /* Array end token */ #define OV265X_ID(_msb, _lsb) ((_msb) << 8 | (_lsb)) #define OV2659_ID 0x2656 struct sensor_register { u16 addr; u8 value; }; struct ov2659_framesize { u16 width; u16 height; u16 max_exp_lines; const struct sensor_register *regs; }; struct ov2659_pll_ctrl { u8 ctrl1; u8 ctrl2; u8 ctrl3; }; struct ov2659_pixfmt { u32 code; /* Output format Register Value (REG_FORMAT_CTRL00) */ struct sensor_register *format_ctrl_regs; }; struct pll_ctrl_reg { unsigned int div; unsigned char reg; }; struct ov2659 { struct v4l2_subdev sd; struct media_pad pad; struct v4l2_mbus_framefmt format; unsigned int xvclk_frequency; const struct ov2659_platform_data *pdata; struct mutex lock; struct i2c_client *client; struct v4l2_ctrl_handler ctrls; struct v4l2_ctrl *link_frequency; const struct ov2659_framesize *frame_size; struct sensor_register *format_ctrl_regs; struct ov2659_pll_ctrl pll; int streaming; }; static const struct sensor_register ov2659_init_regs[] = { { REG_IO_CTRL00, 0x03 }, { REG_IO_CTRL01, 0xff }, { REG_IO_CTRL02, 0xe0 }, { 0x3633, 0x3d }, { 0x3620, 0x02 }, { 0x3631, 0x11 }, { 0x3612, 0x04 }, { 0x3630, 0x20 }, { 0x4702, 0x02 }, { 0x370c, 0x34 }, { REG_TIMING_HS_H, 0x00 }, { REG_TIMING_HS_L, 0x00 }, { REG_TIMING_VS_H, 0x00 }, { REG_TIMING_VS_L, 0x00 }, { REG_TIMING_HW_H, 0x06 }, { REG_TIMING_HW_L, 0x5f }, { REG_TIMING_VH_H, 0x04 }, { REG_TIMING_VH_L, 0xb7 }, { REG_TIMING_DVPHO_H, 0x03 }, { REG_TIMING_DVPHO_L, 0x20 }, { REG_TIMING_DVPVO_H, 0x02 }, { REG_TIMING_DVPVO_L, 0x58 }, { REG_TIMING_HTS_H, 0x05 }, { REG_TIMING_HTS_L, 0x14 }, { REG_TIMING_VTS_H, 0x02 }, { REG_TIMING_VTS_L, 0x68 }, { REG_TIMING_HOFFS_L, 0x08 }, { REG_TIMING_VOFFS_L, 0x02 }, { REG_TIMING_XINC, 0x31 }, { REG_TIMING_YINC, 0x31 }, { 0x3a02, 0x02 }, { 0x3a03, 0x68 }, { 0x3a08, 0x00 }, { 0x3a09, 0x5c }, { 0x3a0a, 0x00 }, { 0x3a0b, 0x4d }, { 0x3a0d, 0x08 }, { 0x3a0e, 0x06 }, { 0x3a14, 0x02 }, { 0x3a15, 0x28 }, { REG_DVP_CTRL02, 0x01 }, { 0x3623, 0x00 }, { 0x3634, 0x76 }, { 0x3701, 0x44 }, { 0x3702, 0x18 }, { 0x3703, 0x24 }, { 0x3704, 0x24 }, { 0x3705, 0x0c }, { REG_TIMING_VERT_FORMAT, 0x81 }, { REG_TIMING_HORIZ_FORMAT, 0x01 }, { 0x370a, 0x52 }, { REG_VFIFO_READ_START_H, 0x00 }, { REG_VFIFO_READ_START_L, 0x80 }, { REG_FORMAT_CTRL00, 0x30 }, { 0x5086, 0x02 }, { REG_ISP_CTRL00, 0xfb }, { REG_ISP_CTRL01, 0x1f }, { REG_ISP_CTRL02, 0x00 }, { 0x5025, 0x0e }, { 0x5026, 0x18 }, { 0x5027, 0x34 }, { 0x5028, 0x4c }, { 0x5029, 0x62 }, { 0x502a, 0x74 }, { 0x502b, 0x85 }, { 0x502c, 0x92 }, { 0x502d, 0x9e }, { 0x502e, 0xb2 }, { 0x502f, 0xc0 }, { 0x5030, 0xcc }, { 0x5031, 0xe0 }, { 0x5032, 0xee }, { 0x5033, 0xf6 }, { 0x5034, 0x11 }, { 0x5070, 0x1c }, { 0x5071, 0x5b }, { 0x5072, 0x05 }, { 0x5073, 0x20 }, { 0x5074, 0x94 }, { 0x5075, 0xb4 }, { 0x5076, 0xb4 }, { 0x5077, 0xaf }, { 0x5078, 0x05 }, { REG_CMX_SIGN, 0x98 }, { REG_CMX_MISC_CTRL, 0x21 }, { REG_AWB_CTRL00, 0x6a }, { REG_AWB_CTRL01, 0x11 }, { REG_AWB_CTRL02, 0x92 }, { REG_AWB_CTRL03, 0x21 }, { REG_AWB_CTRL04, 0xe1 }, { REG_AWB_LOCAL_LIMIT, 0x01 }, { 0x503c, 0x05 }, { 0x503d, 0x08 }, { 0x503e, 0x08 }, { 0x503f, 0x64 }, { 0x5040, 0x58 }, { 0x5041, 0x2a }, { 0x5042, 0xc5 }, { 0x5043, 0x2e }, { 0x5044, 0x3a }, { 0x5045, 0x3c }, { 0x5046, 0x44 }, { 0x5047, 0xf8 }, { 0x5048, 0x08 }, { REG_AWB_CTRL12, 0x70 }, { REG_AWB_CTRL13, 0xf0 }, { REG_AWB_CTRL14, 0xf0 }, { REG_LENC_RED_X0_H, 0x03 }, { REG_LENC_RED_X0_L, 0x20 }, { REG_LENC_RED_Y0_H, 0x02 }, { REG_LENC_RED_Y0_L, 0x5c }, { REG_LENC_RED_A1, 0x48 }, { REG_LENC_RED_B1, 0x00 }, { REG_LENC_RED_A2_B2, 0x66 }, { REG_LENC_GREEN_X0_H, 0x03 }, { REG_LENC_GREEN_X0_L, 0x30 }, { REG_LENC_GREEN_Y0_H, 0x02 }, { REG_LENC_GREEN_Y0_L, 0x7c }, { REG_LENC_GREEN_A1, 0x40 }, { REG_LENC_GREEN_B1, 0x00 }, { REG_LENC_GREEN_A2_B2, 0x66 }, { REG_LENC_BLUE_X0_H, 0x03 }, { REG_LENC_BLUE_X0_L, 0x10 }, { REG_LENC_BLUE_Y0_H, 0x02 }, { REG_LENC_BLUE_Y0_L, 0x7c }, { REG_LENC_BLUE_A1, 0x3a }, { REG_LENC_BLUE_B1, 0x00 }, { REG_LENC_BLUE_A2_B2, 0x66 }, { REG_CIP_CTRL00, 0x44 }, { REG_SHARPENMT_THRESH1, 0x08 }, { REG_SHARPENMT_THRESH2, 0x10 }, { REG_SHARPENMT_OFFSET1, 0x12 }, { REG_SHARPENMT_OFFSET2, 0x02 }, { REG_SHARPEN_THRESH1, 0x08 }, { REG_SHARPEN_THRESH2, 0x10 }, { REG_CIP_CTRL01, 0xa6 }, { REG_DENOISE_THRESH1, 0x08 }, { REG_DENOISE_THRESH2, 0x10 }, { REG_DENOISE_OFFSET1, 0x04 }, { REG_DENOISE_OFFSET2, 0x12 }, { 0x507e, 0x40 }, { 0x507f, 0x20 }, { 0x507b, 0x02 }, { REG_CMX_MISC_CTRL, 0x01 }, { 0x5084, 0x0c }, { 0x5085, 0x3e }, { 0x5005, 0x80 }, { 0x3a0f, 0x30 }, { 0x3a10, 0x28 }, { 0x3a1b, 0x32 }, { 0x3a1e, 0x26 }, { 0x3a11, 0x60 }, { 0x3a1f, 0x14 }, { 0x5060, 0x69 }, { 0x5061, 0x7d }, { 0x5062, 0x7d }, { 0x5063, 0x69 }, { REG_NULL, 0x00 }, }; /* 1280X720 720p */ static struct sensor_register ov2659_720p[] = { { REG_TIMING_HS_H, 0x00 }, { REG_TIMING_HS_L, 0xa0 }, { REG_TIMING_VS_H, 0x00 }, { REG_TIMING_VS_L, 0xf0 }, { REG_TIMING_HW_H, 0x05 }, { REG_TIMING_HW_L, 0xbf }, { REG_TIMING_VH_H, 0x03 }, { REG_TIMING_VH_L, 0xcb }, { REG_TIMING_DVPHO_H, 0x05 }, { REG_TIMING_DVPHO_L, 0x00 }, { REG_TIMING_DVPVO_H, 0x02 }, { REG_TIMING_DVPVO_L, 0xd0 }, { REG_TIMING_HTS_H, 0x06 }, { REG_TIMING_HTS_L, 0x4c }, { REG_TIMING_VTS_H, 0x02 }, { REG_TIMING_VTS_L, 0xe8 }, { REG_TIMING_HOFFS_L, 0x10 }, { REG_TIMING_VOFFS_L, 0x06 }, { REG_TIMING_XINC, 0x11 }, { REG_TIMING_YINC, 0x11 }, { REG_TIMING_VERT_FORMAT, 0x80 }, { REG_TIMING_HORIZ_FORMAT, 0x00 }, { 0x3a03, 0xe8 }, { 0x3a09, 0x6f }, { 0x3a0b, 0x5d }, { 0x3a15, 0x9a }, { REG_NULL, 0x00 }, }; /* 1600X1200 UXGA */ static struct sensor_register ov2659_uxga[] = { { REG_TIMING_HS_H, 0x00 }, { REG_TIMING_HS_L, 0x00 }, { REG_TIMING_VS_H, 0x00 }, { REG_TIMING_VS_L, 0x00 }, { REG_TIMING_HW_H, 0x06 }, { REG_TIMING_HW_L, 0x5f }, { REG_TIMING_VH_H, 0x04 }, { REG_TIMING_VH_L, 0xbb }, { REG_TIMING_DVPHO_H, 0x06 }, { REG_TIMING_DVPHO_L, 0x40 }, { REG_TIMING_DVPVO_H, 0x04 }, { REG_TIMING_DVPVO_L, 0xb0 }, { REG_TIMING_HTS_H, 0x07 }, { REG_TIMING_HTS_L, 0x9f }, { REG_TIMING_VTS_H, 0x04 }, { REG_TIMING_VTS_L, 0xd0 }, { REG_TIMING_HOFFS_L, 0x10 }, { REG_TIMING_VOFFS_L, 0x06 }, { REG_TIMING_XINC, 0x11 }, { REG_TIMING_YINC, 0x11 }, { 0x3a02, 0x04 }, { 0x3a03, 0xd0 }, { 0x3a08, 0x00 }, { 0x3a09, 0xb8 }, { 0x3a0a, 0x00 }, { 0x3a0b, 0x9a }, { 0x3a0d, 0x08 }, { 0x3a0e, 0x06 }, { 0x3a14, 0x04 }, { 0x3a15, 0x50 }, { 0x3623, 0x00 }, { 0x3634, 0x44 }, { 0x3701, 0x44 }, { 0x3702, 0x30 }, { 0x3703, 0x48 }, { 0x3704, 0x48 }, { 0x3705, 0x18 }, { REG_TIMING_VERT_FORMAT, 0x80 }, { REG_TIMING_HORIZ_FORMAT, 0x00 }, { 0x370a, 0x12 }, { REG_VFIFO_READ_START_H, 0x00 }, { REG_VFIFO_READ_START_L, 0x80 }, { REG_ISP_CTRL02, 0x00 }, { REG_NULL, 0x00 }, }; /* 1280X1024 SXGA */ static struct sensor_register ov2659_sxga[] = { { REG_TIMING_HS_H, 0x00 }, { REG_TIMING_HS_L, 0x00 }, { REG_TIMING_VS_H, 0x00 }, { REG_TIMING_VS_L, 0x00 }, { REG_TIMING_HW_H, 0x06 }, { REG_TIMING_HW_L, 0x5f }, { REG_TIMING_VH_H, 0x04 }, { REG_TIMING_VH_L, 0xb7 }, { REG_TIMING_DVPHO_H, 0x05 }, { REG_TIMING_DVPHO_L, 0x00 }, { REG_TIMING_DVPVO_H, 0x04 }, { REG_TIMING_DVPVO_L, 0x00 }, { REG_TIMING_HTS_H, 0x07 }, { REG_TIMING_HTS_L, 0x9c }, { REG_TIMING_VTS_H, 0x04 }, { REG_TIMING_VTS_L, 0xd0 }, { REG_TIMING_HOFFS_L, 0x10 }, { REG_TIMING_VOFFS_L, 0x06 }, { REG_TIMING_XINC, 0x11 }, { REG_TIMING_YINC, 0x11 }, { 0x3a02, 0x02 }, { 0x3a03, 0x68 }, { 0x3a08, 0x00 }, { 0x3a09, 0x5c }, { 0x3a0a, 0x00 }, { 0x3a0b, 0x4d }, { 0x3a0d, 0x08 }, { 0x3a0e, 0x06 }, { 0x3a14, 0x02 }, { 0x3a15, 0x28 }, { 0x3623, 0x00 }, { 0x3634, 0x76 }, { 0x3701, 0x44 }, { 0x3702, 0x18 }, { 0x3703, 0x24 }, { 0x3704, 0x24 }, { 0x3705, 0x0c }, { REG_TIMING_VERT_FORMAT, 0x80 }, { REG_TIMING_HORIZ_FORMAT, 0x00 }, { 0x370a, 0x52 }, { REG_VFIFO_READ_START_H, 0x00 }, { REG_VFIFO_READ_START_L, 0x80 }, { REG_ISP_CTRL02, 0x00 }, { REG_NULL, 0x00 }, }; /* 1024X768 SXGA */ static struct sensor_register ov2659_xga[] = { { REG_TIMING_HS_H, 0x00 }, { REG_TIMING_HS_L, 0x00 }, { REG_TIMING_VS_H, 0x00 }, { REG_TIMING_VS_L, 0x00 }, { REG_TIMING_HW_H, 0x06 }, { REG_TIMING_HW_L, 0x5f }, { REG_TIMING_VH_H, 0x04 }, { REG_TIMING_VH_L, 0xb7 }, { REG_TIMING_DVPHO_H, 0x04 }, { REG_TIMING_DVPHO_L, 0x00 }, { REG_TIMING_DVPVO_H, 0x03 }, { REG_TIMING_DVPVO_L, 0x00 }, { REG_TIMING_HTS_H, 0x07 }, { REG_TIMING_HTS_L, 0x9c }, { REG_TIMING_VTS_H, 0x04 }, { REG_TIMING_VTS_L, 0xd0 }, { REG_TIMING_HOFFS_L, 0x10 }, { REG_TIMING_VOFFS_L, 0x06 }, { REG_TIMING_XINC, 0x11 }, { REG_TIMING_YINC, 0x11 }, { 0x3a02, 0x02 }, { 0x3a03, 0x68 }, { 0x3a08, 0x00 }, { 0x3a09, 0x5c }, { 0x3a0a, 0x00 }, { 0x3a0b, 0x4d }, { 0x3a0d, 0x08 }, { 0x3a0e, 0x06 }, { 0x3a14, 0x02 }, { 0x3a15, 0x28 }, { 0x3623, 0x00 }, { 0x3634, 0x76 }, { 0x3701, 0x44 }, { 0x3702, 0x18 }, { 0x3703, 0x24 }, { 0x3704, 0x24 }, { 0x3705, 0x0c }, { REG_TIMING_VERT_FORMAT, 0x80 }, { REG_TIMING_HORIZ_FORMAT, 0x00 }, { 0x370a, 0x52 }, { REG_VFIFO_READ_START_H, 0x00 }, { REG_VFIFO_READ_START_L, 0x80 }, { REG_ISP_CTRL02, 0x00 }, { REG_NULL, 0x00 }, }; /* 800X600 SVGA */ static struct sensor_register ov2659_svga[] = { { REG_TIMING_HS_H, 0x00 }, { REG_TIMING_HS_L, 0x00 }, { REG_TIMING_VS_H, 0x00 }, { REG_TIMING_VS_L, 0x00 }, { REG_TIMING_HW_H, 0x06 }, { REG_TIMING_HW_L, 0x5f }, { REG_TIMING_VH_H, 0x04 }, { REG_TIMING_VH_L, 0xb7 }, { REG_TIMING_DVPHO_H, 0x03 }, { REG_TIMING_DVPHO_L, 0x20 }, { REG_TIMING_DVPVO_H, 0x02 }, { REG_TIMING_DVPVO_L, 0x58 }, { REG_TIMING_HTS_H, 0x05 }, { REG_TIMING_HTS_L, 0x14 }, { REG_TIMING_VTS_H, 0x02 }, { REG_TIMING_VTS_L, 0x68 }, { REG_TIMING_HOFFS_L, 0x08 }, { REG_TIMING_VOFFS_L, 0x02 }, { REG_TIMING_XINC, 0x31 }, { REG_TIMING_YINC, 0x31 }, { 0x3a02, 0x02 }, { 0x3a03, 0x68 }, { 0x3a08, 0x00 }, { 0x3a09, 0x5c }, { 0x3a0a, 0x00 }, { 0x3a0b, 0x4d }, { 0x3a0d, 0x08 }, { 0x3a0e, 0x06 }, { 0x3a14, 0x02 }, { 0x3a15, 0x28 }, { 0x3623, 0x00 }, { 0x3634, 0x76 }, { 0x3701, 0x44 }, { 0x3702, 0x18 }, { 0x3703, 0x24 }, { 0x3704, 0x24 }, { 0x3705, 0x0c }, { REG_TIMING_VERT_FORMAT, 0x81 }, { REG_TIMING_HORIZ_FORMAT, 0x01 }, { 0x370a, 0x52 }, { REG_VFIFO_READ_START_H, 0x00 }, { REG_VFIFO_READ_START_L, 0x80 }, { REG_ISP_CTRL02, 0x00 }, { REG_NULL, 0x00 }, }; /* 640X480 VGA */ static struct sensor_register ov2659_vga[] = { { REG_TIMING_HS_H, 0x00 }, { REG_TIMING_HS_L, 0x00 }, { REG_TIMING_VS_H, 0x00 }, { REG_TIMING_VS_L, 0x00 }, { REG_TIMING_HW_H, 0x06 }, { REG_TIMING_HW_L, 0x5f }, { REG_TIMING_VH_H, 0x04 }, { REG_TIMING_VH_L, 0xb7 }, { REG_TIMING_DVPHO_H, 0x02 }, { REG_TIMING_DVPHO_L, 0x80 }, { REG_TIMING_DVPVO_H, 0x01 }, { REG_TIMING_DVPVO_L, 0xe0 }, { REG_TIMING_HTS_H, 0x05 }, { REG_TIMING_HTS_L, 0x14 }, { REG_TIMING_VTS_H, 0x02 }, { REG_TIMING_VTS_L, 0x68 }, { REG_TIMING_HOFFS_L, 0x08 }, { REG_TIMING_VOFFS_L, 0x02 }, { REG_TIMING_XINC, 0x31 }, { REG_TIMING_YINC, 0x31 }, { 0x3a02, 0x02 }, { 0x3a03, 0x68 }, { 0x3a08, 0x00 }, { 0x3a09, 0x5c }, { 0x3a0a, 0x00 }, { 0x3a0b, 0x4d }, { 0x3a0d, 0x08 }, { 0x3a0e, 0x06 }, { 0x3a14, 0x02 }, { 0x3a15, 0x28 }, { 0x3623, 0x00 }, { 0x3634, 0x76 }, { 0x3701, 0x44 }, { 0x3702, 0x18 }, { 0x3703, 0x24 }, { 0x3704, 0x24 }, { 0x3705, 0x0c }, { REG_TIMING_VERT_FORMAT, 0x81 }, { REG_TIMING_HORIZ_FORMAT, 0x01 }, { 0x370a, 0x52 }, { REG_VFIFO_READ_START_H, 0x00 }, { REG_VFIFO_READ_START_L, 0x80 }, { REG_ISP_CTRL02, 0x10 }, { REG_NULL, 0x00 }, }; /* 320X240 QVGA */ static struct sensor_register ov2659_qvga[] = { { REG_TIMING_HS_H, 0x00 }, { REG_TIMING_HS_L, 0x00 }, { REG_TIMING_VS_H, 0x00 }, { REG_TIMING_VS_L, 0x00 }, { REG_TIMING_HW_H, 0x06 }, { REG_TIMING_HW_L, 0x5f }, { REG_TIMING_VH_H, 0x04 }, { REG_TIMING_VH_L, 0xb7 }, { REG_TIMING_DVPHO_H, 0x01 }, { REG_TIMING_DVPHO_L, 0x40 }, { REG_TIMING_DVPVO_H, 0x00 }, { REG_TIMING_DVPVO_L, 0xf0 }, { REG_TIMING_HTS_H, 0x05 }, { REG_TIMING_HTS_L, 0x14 }, { REG_TIMING_VTS_H, 0x02 }, { REG_TIMING_VTS_L, 0x68 }, { REG_TIMING_HOFFS_L, 0x08 }, { REG_TIMING_VOFFS_L, 0x02 }, { REG_TIMING_XINC, 0x31 }, { REG_TIMING_YINC, 0x31 }, { 0x3a02, 0x02 }, { 0x3a03, 0x68 }, { 0x3a08, 0x00 }, { 0x3a09, 0x5c }, { 0x3a0a, 0x00 }, { 0x3a0b, 0x4d }, { 0x3a0d, 0x08 }, { 0x3a0e, 0x06 }, { 0x3a14, 0x02 }, { 0x3a15, 0x28 }, { 0x3623, 0x00 }, { 0x3634, 0x76 }, { 0x3701, 0x44 }, { 0x3702, 0x18 }, { 0x3703, 0x24 }, { 0x3704, 0x24 }, { 0x3705, 0x0c }, { REG_TIMING_VERT_FORMAT, 0x81 }, { REG_TIMING_HORIZ_FORMAT, 0x01 }, { 0x370a, 0x52 }, { REG_VFIFO_READ_START_H, 0x00 }, { REG_VFIFO_READ_START_L, 0x80 }, { REG_ISP_CTRL02, 0x10 }, { REG_NULL, 0x00 }, }; static const struct pll_ctrl_reg ctrl3[] = { { 1, 0x00 }, { 2, 0x02 }, { 3, 0x03 }, { 4, 0x06 }, { 6, 0x0d }, { 8, 0x0e }, { 12, 0x0f }, { 16, 0x12 }, { 24, 0x13 }, { 32, 0x16 }, { 48, 0x1b }, { 64, 0x1e }, { 96, 0x1f }, { 0, 0x00 }, }; static const struct pll_ctrl_reg ctrl1[] = { { 2, 0x10 }, { 4, 0x20 }, { 6, 0x30 }, { 8, 0x40 }, { 10, 0x50 }, { 12, 0x60 }, { 14, 0x70 }, { 16, 0x80 }, { 18, 0x90 }, { 20, 0xa0 }, { 22, 0xb0 }, { 24, 0xc0 }, { 26, 0xd0 }, { 28, 0xe0 }, { 30, 0xf0 }, { 0, 0x00 }, }; static const struct ov2659_framesize ov2659_framesizes[] = { { /* QVGA */ .width = 320, .height = 240, .regs = ov2659_qvga, .max_exp_lines = 248, }, { /* VGA */ .width = 640, .height = 480, .regs = ov2659_vga, .max_exp_lines = 498, }, { /* SVGA */ .width = 800, .height = 600, .regs = ov2659_svga, .max_exp_lines = 498, }, { /* XGA */ .width = 1024, .height = 768, .regs = ov2659_xga, .max_exp_lines = 498, }, { /* 720P */ .width = 1280, .height = 720, .regs = ov2659_720p, .max_exp_lines = 498, }, { /* SXGA */ .width = 1280, .height = 1024, .regs = ov2659_sxga, .max_exp_lines = 1048, }, { /* UXGA */ .width = 1600, .height = 1200, .regs = ov2659_uxga, .max_exp_lines = 498, }, }; /* YUV422 YUYV*/ static struct sensor_register ov2659_format_yuyv[] = { { REG_FORMAT_CTRL00, 0x30 }, { REG_NULL, 0x0 }, }; /* YUV422 UYVY */ static struct sensor_register ov2659_format_uyvy[] = { { REG_FORMAT_CTRL00, 0x32 }, { REG_NULL, 0x0 }, }; /* Raw Bayer BGGR */ static struct sensor_register ov2659_format_bggr[] = { { REG_FORMAT_CTRL00, 0x00 }, { REG_NULL, 0x0 }, }; /* RGB565 */ static struct sensor_register ov2659_format_rgb565[] = { { REG_FORMAT_CTRL00, 0x60 }, { REG_NULL, 0x0 }, }; static const struct ov2659_pixfmt ov2659_formats[] = { { .code = MEDIA_BUS_FMT_YUYV8_2X8, .format_ctrl_regs = ov2659_format_yuyv, }, { .code = MEDIA_BUS_FMT_UYVY8_2X8, .format_ctrl_regs = ov2659_format_uyvy, }, { .code = MEDIA_BUS_FMT_RGB565_2X8_BE, .format_ctrl_regs = ov2659_format_rgb565, }, { .code = MEDIA_BUS_FMT_SBGGR8_1X8, .format_ctrl_regs = ov2659_format_bggr, }, }; static inline struct ov2659 *to_ov2659(struct v4l2_subdev *sd) { return container_of(sd, struct ov2659, sd); } /* sensor register write */ static int ov2659_write(struct i2c_client *client, u16 reg, u8 val) { struct i2c_msg msg; u8 buf[3]; int ret; buf[0] = reg >> 8; buf[1] = reg & 0xFF; buf[2] = val; msg.addr = client->addr; msg.flags = client->flags; msg.buf = buf; msg.len = sizeof(buf); ret = i2c_transfer(client->adapter, &msg, 1); if (ret >= 0) return 0; dev_dbg(&client->dev, "ov2659 write reg(0x%x val:0x%x) failed !\n", reg, val); return ret; } /* sensor register read */ static int ov2659_read(struct i2c_client *client, u16 reg, u8 *val) { struct i2c_msg msg[2]; u8 buf[2]; int ret; buf[0] = reg >> 8; buf[1] = reg & 0xFF; msg[0].addr = client->addr; msg[0].flags = client->flags; msg[0].buf = buf; msg[0].len = sizeof(buf); msg[1].addr = client->addr; msg[1].flags = client->flags | I2C_M_RD; msg[1].buf = buf; msg[1].len = 1; ret = i2c_transfer(client->adapter, msg, 2); if (ret >= 0) { *val = buf[0]; return 0; } dev_dbg(&client->dev, "ov2659 read reg(0x%x val:0x%x) failed !\n", reg, *val); return ret; } static int ov2659_write_array(struct i2c_client *client, const struct sensor_register *regs) { int i, ret = 0; for (i = 0; ret == 0 && regs[i].addr; i++) ret = ov2659_write(client, regs[i].addr, regs[i].value); return ret; } static void ov2659_pll_calc_params(struct ov2659 *ov2659) { const struct ov2659_platform_data *pdata = ov2659->pdata; u8 ctrl1_reg = 0, ctrl2_reg = 0, ctrl3_reg = 0; struct i2c_client *client = ov2659->client; unsigned int desired = pdata->link_frequency; u32 prediv, postdiv, mult; u32 bestdelta = -1; u32 delta, actual; int i, j; for (i = 0; ctrl1[i].div != 0; i++) { postdiv = ctrl1[i].div; for (j = 0; ctrl3[j].div != 0; j++) { prediv = ctrl3[j].div; for (mult = 1; mult <= 63; mult++) { actual = ov2659->xvclk_frequency; actual *= mult; actual /= prediv; actual /= postdiv; delta = actual - desired; delta = abs(delta); if ((delta < bestdelta) || (bestdelta == -1)) { bestdelta = delta; ctrl1_reg = ctrl1[i].reg; ctrl2_reg = mult; ctrl3_reg = ctrl3[j].reg; } } } } ov2659->pll.ctrl1 = ctrl1_reg; ov2659->pll.ctrl2 = ctrl2_reg; ov2659->pll.ctrl3 = ctrl3_reg; dev_dbg(&client->dev, "Actual reg config: ctrl1_reg: %02x ctrl2_reg: %02x ctrl3_reg: %02x\n", ctrl1_reg, ctrl2_reg, ctrl3_reg); } static int ov2659_set_pixel_clock(struct ov2659 *ov2659) { struct i2c_client *client = ov2659->client; struct sensor_register pll_regs[] = { {REG_SC_PLL_CTRL1, ov2659->pll.ctrl1}, {REG_SC_PLL_CTRL2, ov2659->pll.ctrl2}, {REG_SC_PLL_CTRL3, ov2659->pll.ctrl3}, {REG_NULL, 0x00}, }; dev_dbg(&client->dev, "%s\n", __func__); return ov2659_write_array(client, pll_regs); }; static void ov2659_get_default_format(struct v4l2_mbus_framefmt *format) { format->width = ov2659_framesizes[2].width; format->height = ov2659_framesizes[2].height; format->colorspace = V4L2_COLORSPACE_SRGB; format->code = ov2659_formats[0].code; format->field = V4L2_FIELD_NONE; } static void ov2659_set_streaming(struct ov2659 *ov2659, int on) { struct i2c_client *client = ov2659->client; int ret; on = !!on; dev_dbg(&client->dev, "%s: on: %d\n", __func__, on); ret = ov2659_write(client, REG_SOFTWARE_STANDBY, on); if (ret) dev_err(&client->dev, "ov2659 soft standby failed\n"); } static int ov2659_init(struct v4l2_subdev *sd, u32 val) { struct i2c_client *client = v4l2_get_subdevdata(sd); return ov2659_write_array(client, ov2659_init_regs); } /* * V4L2 subdev video and pad level operations */ static int ov2659_enum_mbus_code(struct v4l2_subdev *sd, struct v4l2_subdev_pad_config *cfg, struct v4l2_subdev_mbus_code_enum *code) { struct i2c_client *client = v4l2_get_subdevdata(sd); dev_dbg(&client->dev, "%s:\n", __func__); if (code->index >= ARRAY_SIZE(ov2659_formats)) return -EINVAL; code->code = ov2659_formats[code->index].code; return 0; } static int ov2659_enum_frame_sizes(struct v4l2_subdev *sd, struct v4l2_subdev_pad_config *cfg, struct v4l2_subdev_frame_size_enum *fse) { struct i2c_client *client = v4l2_get_subdevdata(sd); int i = ARRAY_SIZE(ov2659_formats); dev_dbg(&client->dev, "%s:\n", __func__); if (fse->index >= ARRAY_SIZE(ov2659_framesizes)) return -EINVAL; while (--i) if (fse->code == ov2659_formats[i].code) break; fse->code = ov2659_formats[i].code; fse->min_width = ov2659_framesizes[fse->index].width; fse->max_width = fse->min_width; fse->max_height = ov2659_framesizes[fse->index].height; fse->min_height = fse->max_height; return 0; } static int ov2659_get_fmt(struct v4l2_subdev *sd, struct v4l2_subdev_pad_config *cfg, struct v4l2_subdev_format *fmt) { struct i2c_client *client = v4l2_get_subdevdata(sd); struct ov2659 *ov2659 = to_ov2659(sd); dev_dbg(&client->dev, "ov2659_get_fmt\n"); if (fmt->which == V4L2_SUBDEV_FORMAT_TRY) { #ifdef CONFIG_VIDEO_V4L2_SUBDEV_API struct v4l2_mbus_framefmt *mf; mf = v4l2_subdev_get_try_format(sd, cfg, 0); mutex_lock(&ov2659->lock); fmt->format = *mf; mutex_unlock(&ov2659->lock); return 0; #else return -ENOTTY; #endif } mutex_lock(&ov2659->lock); fmt->format = ov2659->format; mutex_unlock(&ov2659->lock); dev_dbg(&client->dev, "ov2659_get_fmt: %x %dx%d\n", ov2659->format.code, ov2659->format.width, ov2659->format.height); return 0; } static void __ov2659_try_frame_size(struct v4l2_mbus_framefmt *mf, const struct ov2659_framesize **size) { const struct ov2659_framesize *fsize = &ov2659_framesizes[0]; const struct ov2659_framesize *match = NULL; int i = ARRAY_SIZE(ov2659_framesizes); unsigned int min_err = UINT_MAX; while (i--) { int err = abs(fsize->width - mf->width) + abs(fsize->height - mf->height); if ((err < min_err) && (fsize->regs[0].addr)) { min_err = err; match = fsize; } fsize++; } if (!match) match = &ov2659_framesizes[2]; mf->width = match->width; mf->height = match->height; if (size) *size = match; } static int ov2659_set_fmt(struct v4l2_subdev *sd, struct v4l2_subdev_pad_config *cfg, struct v4l2_subdev_format *fmt) { struct i2c_client *client = v4l2_get_subdevdata(sd); int index = ARRAY_SIZE(ov2659_formats); struct v4l2_mbus_framefmt *mf = &fmt->format; const struct ov2659_framesize *size = NULL; struct ov2659 *ov2659 = to_ov2659(sd); int ret = 0; dev_dbg(&client->dev, "ov2659_set_fmt\n"); __ov2659_try_frame_size(mf, &size); while (--index >= 0) if (ov2659_formats[index].code == mf->code) break; if (index < 0) return -EINVAL; mf->colorspace = V4L2_COLORSPACE_SRGB; mf->code = ov2659_formats[index].code; mf->field = V4L2_FIELD_NONE; mutex_lock(&ov2659->lock); if (fmt->which == V4L2_SUBDEV_FORMAT_TRY) { #ifdef CONFIG_VIDEO_V4L2_SUBDEV_API mf = v4l2_subdev_get_try_format(sd, cfg, fmt->pad); *mf = fmt->format; #else return -ENOTTY; #endif } else { s64 val; if (ov2659->streaming) { mutex_unlock(&ov2659->lock); return -EBUSY; } ov2659->frame_size = size; ov2659->format = fmt->format; ov2659->format_ctrl_regs = ov2659_formats[index].format_ctrl_regs; if (ov2659->format.code != MEDIA_BUS_FMT_SBGGR8_1X8) val = ov2659->pdata->link_frequency / 2; else val = ov2659->pdata->link_frequency; ret = v4l2_ctrl_s_ctrl_int64(ov2659->link_frequency, val); if (ret < 0) dev_warn(&client->dev, "failed to set link_frequency rate (%d)\n", ret); } mutex_unlock(&ov2659->lock); return ret; } static int ov2659_set_frame_size(struct ov2659 *ov2659) { struct i2c_client *client = ov2659->client; dev_dbg(&client->dev, "%s\n", __func__); return ov2659_write_array(ov2659->client, ov2659->frame_size->regs); } static int ov2659_set_format(struct ov2659 *ov2659) { struct i2c_client *client = ov2659->client; dev_dbg(&client->dev, "%s\n", __func__); return ov2659_write_array(ov2659->client, ov2659->format_ctrl_regs); } static int ov2659_s_stream(struct v4l2_subdev *sd, int on) { struct i2c_client *client = v4l2_get_subdevdata(sd); struct ov2659 *ov2659 = to_ov2659(sd); int ret = 0; dev_dbg(&client->dev, "%s: on: %d\n", __func__, on); mutex_lock(&ov2659->lock); on = !!on; if (ov2659->streaming == on) goto unlock; if (!on) { /* Stop Streaming Sequence */ ov2659_set_streaming(ov2659, 0); ov2659->streaming = on; goto unlock; } ov2659_set_pixel_clock(ov2659); ov2659_set_frame_size(ov2659); ov2659_set_format(ov2659); ov2659_set_streaming(ov2659, 1); ov2659->streaming = on; unlock: mutex_unlock(&ov2659->lock); return ret; } static int ov2659_set_test_pattern(struct ov2659 *ov2659, int value) { struct i2c_client *client = v4l2_get_subdevdata(&ov2659->sd); int ret; u8 val; ret = ov2659_read(client, REG_PRE_ISP_CTRL00, &val); if (ret < 0) return ret; switch (value) { case 0: val &= ~TEST_PATTERN_ENABLE; break; case 1: val &= VERTICAL_COLOR_BAR_MASK; val |= TEST_PATTERN_ENABLE; break; } return ov2659_write(client, REG_PRE_ISP_CTRL00, val); } static int ov2659_s_ctrl(struct v4l2_ctrl *ctrl) { struct ov2659 *ov2659 = container_of(ctrl->handler, struct ov2659, ctrls); switch (ctrl->id) { case V4L2_CID_TEST_PATTERN: return ov2659_set_test_pattern(ov2659, ctrl->val); } return 0; } static const struct v4l2_ctrl_ops ov2659_ctrl_ops = { .s_ctrl = ov2659_s_ctrl, }; static const char * const ov2659_test_pattern_menu[] = { "Disabled", "Vertical Color Bars", }; /* ----------------------------------------------------------------------------- * V4L2 subdev internal operations */ #ifdef CONFIG_VIDEO_V4L2_SUBDEV_API static int ov2659_open(struct v4l2_subdev *sd, struct v4l2_subdev_fh *fh) { struct i2c_client *client = v4l2_get_subdevdata(sd); struct v4l2_mbus_framefmt *format = v4l2_subdev_get_try_format(sd, fh->pad, 0); dev_dbg(&client->dev, "%s:\n", __func__); ov2659_get_default_format(format); return 0; } #endif static const struct v4l2_subdev_core_ops ov2659_subdev_core_ops = { .log_status = v4l2_ctrl_subdev_log_status, .subscribe_event = v4l2_ctrl_subdev_subscribe_event, .unsubscribe_event = v4l2_event_subdev_unsubscribe, }; static const struct v4l2_subdev_video_ops ov2659_subdev_video_ops = { .s_stream = ov2659_s_stream, }; static const struct v4l2_subdev_pad_ops ov2659_subdev_pad_ops = { .enum_mbus_code = ov2659_enum_mbus_code, .enum_frame_size = ov2659_enum_frame_sizes, .get_fmt = ov2659_get_fmt, .set_fmt = ov2659_set_fmt, }; #ifdef CONFIG_VIDEO_V4L2_SUBDEV_API static const struct v4l2_subdev_ops ov2659_subdev_ops = { .core = &ov2659_subdev_core_ops, .video = &ov2659_subdev_video_ops, .pad = &ov2659_subdev_pad_ops, }; static const struct v4l2_subdev_internal_ops ov2659_subdev_internal_ops = { .open = ov2659_open, }; #endif static int ov2659_detect(struct v4l2_subdev *sd) { struct i2c_client *client = v4l2_get_subdevdata(sd); u8 pid, ver; int ret; dev_dbg(&client->dev, "%s:\n", __func__); ret = ov2659_write(client, REG_SOFTWARE_RESET, 0x01); if (ret != 0) { dev_err(&client->dev, "Sensor soft reset failed\n"); return -ENODEV; } usleep_range(1000, 2000); ret = ov2659_init(sd, 0); if (ret < 0) return ret; /* Check sensor revision */ ret = ov2659_read(client, REG_SC_CHIP_ID_H, &pid); if (!ret) ret = ov2659_read(client, REG_SC_CHIP_ID_L, &ver); if (!ret) { unsigned short id; id = OV265X_ID(pid, ver); if (id != OV2659_ID) dev_err(&client->dev, "Sensor detection failed (%04X, %d)\n", id, ret); else dev_info(&client->dev, "Found OV%04X sensor\n", id); } return ret; } static struct ov2659_platform_data * ov2659_get_pdata(struct i2c_client *client) { struct ov2659_platform_data *pdata; struct v4l2_of_endpoint *bus_cfg; struct device_node *endpoint; if (!IS_ENABLED(CONFIG_OF) || !client->dev.of_node) return client->dev.platform_data; endpoint = of_graph_get_next_endpoint(client->dev.of_node, NULL); if (!endpoint) return NULL; bus_cfg = v4l2_of_alloc_parse_endpoint(endpoint); if (IS_ERR(bus_cfg)) { pdata = NULL; goto done; } pdata = devm_kzalloc(&client->dev, sizeof(*pdata), GFP_KERNEL); if (!pdata) goto done; if (!bus_cfg->nr_of_link_frequencies) { dev_err(&client->dev, "link-frequencies property not found or too many\n"); pdata = NULL; goto done; } pdata->link_frequency = bus_cfg->link_frequencies[0]; done: v4l2_of_free_endpoint(bus_cfg); of_node_put(endpoint); return pdata; } static int ov2659_probe(struct i2c_client *client, const struct i2c_device_id *id) { const struct ov2659_platform_data *pdata = ov2659_get_pdata(client); struct v4l2_subdev *sd; struct ov2659 *ov2659; struct clk *clk; int ret; if (!pdata) { dev_err(&client->dev, "platform data not specified\n"); return -EINVAL; } ov2659 = devm_kzalloc(&client->dev, sizeof(*ov2659), GFP_KERNEL); if (!ov2659) return -ENOMEM; ov2659->pdata = pdata; ov2659->client = client; clk = devm_clk_get(&client->dev, "xvclk"); if (IS_ERR(clk)) return PTR_ERR(clk); ov2659->xvclk_frequency = clk_get_rate(clk); if (ov2659->xvclk_frequency < 6000000 || ov2659->xvclk_frequency > 27000000) return -EINVAL; v4l2_ctrl_handler_init(&ov2659->ctrls, 2); ov2659->link_frequency = v4l2_ctrl_new_std(&ov2659->ctrls, &ov2659_ctrl_ops, V4L2_CID_PIXEL_RATE, pdata->link_frequency / 2, pdata->link_frequency, 1, pdata->link_frequency); v4l2_ctrl_new_std_menu_items(&ov2659->ctrls, &ov2659_ctrl_ops, V4L2_CID_TEST_PATTERN, ARRAY_SIZE(ov2659_test_pattern_menu) - 1, 0, 0, ov2659_test_pattern_menu); ov2659->sd.ctrl_handler = &ov2659->ctrls; if (ov2659->ctrls.error) { dev_err(&client->dev, "%s: control initialization error %d\n", __func__, ov2659->ctrls.error); return ov2659->ctrls.error; } sd = &ov2659->sd; client->flags |= I2C_CLIENT_SCCB; #ifdef CONFIG_VIDEO_V4L2_SUBDEV_API v4l2_i2c_subdev_init(sd, client, &ov2659_subdev_ops); sd->internal_ops = &ov2659_subdev_internal_ops; sd->flags |= V4L2_SUBDEV_FL_HAS_DEVNODE | V4L2_SUBDEV_FL_HAS_EVENTS; #endif #if defined(CONFIG_MEDIA_CONTROLLER) ov2659->pad.flags = MEDIA_PAD_FL_SOURCE; sd->entity.function = MEDIA_ENT_F_CAM_SENSOR; ret = media_entity_pads_init(&sd->entity, 1, &ov2659->pad); if (ret < 0) { v4l2_ctrl_handler_free(&ov2659->ctrls); return ret; } #endif mutex_init(&ov2659->lock); ov2659_get_default_format(&ov2659->format); ov2659->frame_size = &ov2659_framesizes[2]; ov2659->format_ctrl_regs = ov2659_formats[0].format_ctrl_regs; ret = ov2659_detect(sd); if (ret < 0) goto error; /* Calculate the PLL register value needed */ ov2659_pll_calc_params(ov2659); ret = v4l2_async_register_subdev(&ov2659->sd); if (ret) goto error; dev_info(&client->dev, "%s sensor driver registered !!\n", sd->name); return 0; error: v4l2_ctrl_handler_free(&ov2659->ctrls); #if defined(CONFIG_MEDIA_CONTROLLER) media_entity_cleanup(&sd->entity); #endif mutex_destroy(&ov2659->lock); return ret; } static int ov2659_remove(struct i2c_client *client) { struct v4l2_subdev *sd = i2c_get_clientdata(client); struct ov2659 *ov2659 = to_ov2659(sd); v4l2_ctrl_handler_free(&ov2659->ctrls); v4l2_async_unregister_subdev(sd); #if defined(CONFIG_MEDIA_CONTROLLER) media_entity_cleanup(&sd->entity); #endif mutex_destroy(&ov2659->lock); return 0; } static const struct i2c_device_id ov2659_id[] = { { "ov2659", 0 }, { /* sentinel */ }, }; MODULE_DEVICE_TABLE(i2c, ov2659_id); #if IS_ENABLED(CONFIG_OF) static const struct of_device_id ov2659_of_match[] = { { .compatible = "ovti,ov2659", }, { /* sentinel */ }, }; MODULE_DEVICE_TABLE(of, ov2659_of_match); #endif static struct i2c_driver ov2659_i2c_driver = { .driver = { .name = DRIVER_NAME, .of_match_table = of_match_ptr(ov2659_of_match), }, .probe = ov2659_probe, .remove = ov2659_remove, .id_table = ov2659_id, }; module_i2c_driver(ov2659_i2c_driver); MODULE_AUTHOR("Benoit Parrot <bparrot@ti.com>"); MODULE_DESCRIPTION("OV2659 CMOS Image Sensor driver"); MODULE_LICENSE("GPL v2");