/* * Copyright (C) 2011-2016 Freescale Semiconductor, Inc. All Rights Reserved. * * Copyright 2018 NXP * */ /* * The code contained herein is licensed under the GNU General Public * License. You may obtain a copy of the GNU General Public License * Version 2 or later at the following locations: * * http://www.opensource.org/licenses/gpl-license.html * http://www.gnu.org/copyleft/gpl.html */ #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #define OV5640_VOLTAGE_ANALOG 2800000 #define OV5640_VOLTAGE_DIGITAL_CORE 1500000 #define OV5640_VOLTAGE_DIGITAL_IO 1800000 #define MIN_FPS 15 #define MAX_FPS 30 #define DEFAULT_FPS 30 #define OV5640_XCLK_MIN 6000000 #define OV5640_XCLK_MAX 24000000 #define OV5640_XCLK_20MHZ 20000000 #define OV5640_CHIP_ID_HIGH_BYTE 0x300A #define OV5640_CHIP_ID_LOW_BYTE 0x300B #define DEFAULT_SCCB_ID 0x78 enum ov5640_mode { ov5640_mode_MIN = 0, ov5640_mode_VGA_640_480 = 0, ov5640_mode_QVGA_320_240 = 1, ov5640_mode_NTSC_720_480 = 2, ov5640_mode_720P_1280_720 = 3, ov5640_mode_1080P_1920_1080 = 4, ov5640_mode_QSXGA_2592_1944 = 5, ov5640_mode_MAX = 6, ov5640_mode_INIT = 0xff, /*only for sensor init*/ }; enum ov5640_frame_rate { ov5640_15_fps, ov5640_30_fps }; static int ov5640_framerates[] = { [ov5640_15_fps] = 15, [ov5640_30_fps] = 30, }; struct ov5640_datafmt { u32 code; enum v4l2_colorspace colorspace; }; /* image size under 1280 * 960 are SUBSAMPLING * image size upper 1280 * 960 are SCALING */ enum ov5640_downsize_mode { SUBSAMPLING, SCALING, }; struct reg_value { u16 u16RegAddr; u8 u8Val; u8 u8Mask; u32 u32Delay_ms; }; struct ov5640_mode_info { enum ov5640_mode mode; enum ov5640_downsize_mode dn_mode; u32 width; u32 height; struct reg_value *init_data_ptr; u32 init_data_size; }; struct ov5640 { struct v4l2_subdev subdev; struct i2c_client *i2c_client; struct v4l2_pix_format pix; const struct ov5640_datafmt *fmt; struct v4l2_captureparm streamcap; bool on; /* control settings */ int brightness; int hue; int contrast; int saturation; int red; int green; int blue; int ae_mode; u32 mclk; u8 mclk_source; struct clk *sensor_clk; int csi; void (*io_init)(struct ov5640 *); int pwn_gpio, rst_gpio; }; struct ov5640_res { int width; int height; }; /*! * Maintains the information on the current state of the sesor. */ struct ov5640_res ov5640_valid_res[] = { [0] = {640, 480}, [1] = {320, 240}, [2] = {720, 480}, [3] = {1280, 720}, [4] = {1920, 1080}, [5] = {2592, 1944}, }; static struct reg_value ov5640_init_setting_30fps_VGA[] = { {0x3103, 0x11, 0, 0}, {0x3008, 0x82, 0, 5}, {0x3008, 0x42, 0, 0}, {0x3103, 0x03, 0, 0}, {0x3017, 0x00, 0, 0}, {0x3018, 0x00, 0, 0}, {0x3034, 0x18, 0, 0}, {0x3035, 0x14, 0, 0}, {0x3036, 0x38, 0, 0}, {0x3037, 0x13, 0, 0}, {0x3108, 0x01, 0, 0}, {0x3630, 0x36, 0, 0}, {0x3631, 0x0e, 0, 0}, {0x3632, 0xe2, 0, 0}, {0x3633, 0x12, 0, 0}, {0x3621, 0xe0, 0, 0}, {0x3704, 0xa0, 0, 0}, {0x3703, 0x5a, 0, 0}, {0x3715, 0x78, 0, 0}, {0x3717, 0x01, 0, 0}, {0x370b, 0x60, 0, 0}, {0x3705, 0x1a, 0, 0}, {0x3905, 0x02, 0, 0}, {0x3906, 0x10, 0, 0}, {0x3901, 0x0a, 0, 0}, {0x3731, 0x12, 0, 0}, {0x3600, 0x08, 0, 0}, {0x3601, 0x33, 0, 0}, {0x302d, 0x60, 0, 0}, {0x3620, 0x52, 0, 0}, {0x371b, 0x20, 0, 0}, {0x471c, 0x50, 0, 0}, {0x3a13, 0x43, 0, 0}, {0x3a18, 0x00, 0, 0}, {0x3a19, 0xf8, 0, 0}, {0x3635, 0x13, 0, 0}, {0x3636, 0x03, 0, 0}, {0x3634, 0x40, 0, 0}, {0x3622, 0x01, 0, 0}, {0x3c01, 0xa4, 0, 0}, {0x3c04, 0x28, 0, 0}, {0x3c05, 0x98, 0, 0}, {0x3c06, 0x00, 0, 0}, {0x3c07, 0x08, 0, 0}, {0x3c08, 0x00, 0, 0}, {0x3c09, 0x1c, 0, 0}, {0x3c0a, 0x9c, 0, 0}, {0x3c0b, 0x40, 0, 0}, {0x3820, 0x41, 0, 0}, {0x3821, 0x07, 0, 0}, {0x3814, 0x31, 0, 0}, {0x3815, 0x31, 0, 0}, {0x3800, 0x00, 0, 0}, {0x3801, 0x00, 0, 0}, {0x3802, 0x00, 0, 0}, {0x3803, 0x04, 0, 0}, {0x3804, 0x0a, 0, 0}, {0x3805, 0x3f, 0, 0}, {0x3806, 0x07, 0, 0}, {0x3807, 0x9b, 0, 0}, {0x3808, 0x02, 0, 0}, {0x3809, 0x80, 0, 0}, {0x380a, 0x01, 0, 0}, {0x380b, 0xe0, 0, 0}, {0x380c, 0x07, 0, 0}, {0x380d, 0x68, 0, 0}, {0x380e, 0x03, 0, 0}, {0x380f, 0xd8, 0, 0}, {0x3810, 0x00, 0, 0}, {0x3811, 0x10, 0, 0}, {0x3812, 0x00, 0, 0}, {0x3813, 0x06, 0, 0}, {0x3618, 0x00, 0, 0}, {0x3612, 0x29, 0, 0}, {0x3708, 0x64, 0, 0}, {0x3709, 0x52, 0, 0}, {0x370c, 0x03, 0, 0}, {0x3a02, 0x03, 0, 0}, {0x3a03, 0xd8, 0, 0}, {0x3a08, 0x01, 0, 0}, {0x3a09, 0x27, 0, 0}, {0x3a0a, 0x00, 0, 0}, {0x3a0b, 0xf6, 0, 0}, {0x3a0e, 0x03, 0, 0}, {0x3a0d, 0x04, 0, 0}, {0x3a14, 0x03, 0, 0}, {0x3a15, 0xd8, 0, 0}, {0x4001, 0x02, 0, 0}, {0x4004, 0x02, 0, 0}, {0x3000, 0x00, 0, 0}, {0x3002, 0x1c, 0, 0}, {0x3004, 0xff, 0, 0}, {0x3006, 0xc3, 0, 0}, {0x300e, 0x45, 0, 0}, {0x302e, 0x08, 0, 0}, {0x4300, 0x30, 0, 0}, {0x501f, 0x00, 0, 0}, {0x4713, 0x03, 0, 0}, {0x4407, 0x04, 0, 0}, {0x440e, 0x00, 0, 0}, {0x460b, 0x35, 0, 0}, {0x460c, 0x22, 0, 0}, {0x4837, 0x0a, 0, 0}, {0x4800, 0x04, 0, 0}, {0x3824, 0x02, 0, 0}, {0x5000, 0xa7, 0, 0}, {0x5001, 0xa3, 0, 0}, {0x5180, 0xff, 0, 0}, {0x5181, 0xf2, 0, 0}, {0x5182, 0x00, 0, 0}, {0x5183, 0x14, 0, 0}, {0x5184, 0x25, 0, 0}, {0x5185, 0x24, 0, 0}, {0x5186, 0x09, 0, 0}, {0x5187, 0x09, 0, 0}, {0x5188, 0x09, 0, 0}, {0x5189, 0x88, 0, 0}, {0x518a, 0x54, 0, 0}, {0x518b, 0xee, 0, 0}, {0x518c, 0xb2, 0, 0}, {0x518d, 0x50, 0, 0}, {0x518e, 0x34, 0, 0}, {0x518f, 0x6b, 0, 0}, {0x5190, 0x46, 0, 0}, {0x5191, 0xf8, 0, 0}, {0x5192, 0x04, 0, 0}, {0x5193, 0x70, 0, 0}, {0x5194, 0xf0, 0, 0}, {0x5195, 0xf0, 0, 0}, {0x5196, 0x03, 0, 0}, {0x5197, 0x01, 0, 0}, {0x5198, 0x04, 0, 0}, {0x5199, 0x6c, 0, 0}, {0x519a, 0x04, 0, 0}, {0x519b, 0x00, 0, 0}, {0x519c, 0x09, 0, 0}, {0x519d, 0x2b, 0, 0}, {0x519e, 0x38, 0, 0}, {0x5381, 0x1e, 0, 0}, {0x5382, 0x5b, 0, 0}, {0x5383, 0x08, 0, 0}, {0x5384, 0x0a, 0, 0}, {0x5385, 0x7e, 0, 0}, {0x5386, 0x88, 0, 0}, {0x5387, 0x7c, 0, 0}, {0x5388, 0x6c, 0, 0}, {0x5389, 0x10, 0, 0}, {0x538a, 0x01, 0, 0}, {0x538b, 0x98, 0, 0}, {0x5300, 0x08, 0, 0}, {0x5301, 0x30, 0, 0}, {0x5302, 0x10, 0, 0}, {0x5303, 0x00, 0, 0}, {0x5304, 0x08, 0, 0}, {0x5305, 0x30, 0, 0}, {0x5306, 0x08, 0, 0}, {0x5307, 0x16, 0, 0}, {0x5309, 0x08, 0, 0}, {0x530a, 0x30, 0, 0}, {0x530b, 0x04, 0, 0}, {0x530c, 0x06, 0, 0}, {0x5480, 0x01, 0, 0}, {0x5481, 0x08, 0, 0}, {0x5482, 0x14, 0, 0}, {0x5483, 0x28, 0, 0}, {0x5484, 0x51, 0, 0}, {0x5485, 0x65, 0, 0}, {0x5486, 0x71, 0, 0}, {0x5487, 0x7d, 0, 0}, {0x5488, 0x87, 0, 0}, {0x5489, 0x91, 0, 0}, {0x548a, 0x9a, 0, 0}, {0x548b, 0xaa, 0, 0}, {0x548c, 0xb8, 0, 0}, {0x548d, 0xcd, 0, 0}, {0x548e, 0xdd, 0, 0}, {0x548f, 0xea, 0, 0}, {0x5490, 0x1d, 0, 0}, {0x5580, 0x02, 0, 0}, {0x5583, 0x40, 0, 0}, {0x5584, 0x10, 0, 0}, {0x5589, 0x10, 0, 0}, {0x558a, 0x00, 0, 0}, {0x558b, 0xf8, 0, 0}, {0x5800, 0x23, 0, 0}, {0x5801, 0x14, 0, 0}, {0x5802, 0x0f, 0, 0}, {0x5803, 0x0f, 0, 0}, {0x5804, 0x12, 0, 0}, {0x5805, 0x26, 0, 0}, {0x5806, 0x0c, 0, 0}, {0x5807, 0x08, 0, 0}, {0x5808, 0x05, 0, 0}, {0x5809, 0x05, 0, 0}, {0x580a, 0x08, 0, 0}, {0x580b, 0x0d, 0, 0}, {0x580c, 0x08, 0, 0}, {0x580d, 0x03, 0, 0}, {0x580e, 0x00, 0, 0}, {0x580f, 0x00, 0, 0}, {0x5810, 0x03, 0, 0}, {0x5811, 0x09, 0, 0}, {0x5812, 0x07, 0, 0}, {0x5813, 0x03, 0, 0}, {0x5814, 0x00, 0, 0}, {0x5815, 0x01, 0, 0}, {0x5816, 0x03, 0, 0}, {0x5817, 0x08, 0, 0}, {0x5818, 0x0d, 0, 0}, {0x5819, 0x08, 0, 0}, {0x581a, 0x05, 0, 0}, {0x581b, 0x06, 0, 0}, {0x581c, 0x08, 0, 0}, {0x581d, 0x0e, 0, 0}, {0x581e, 0x29, 0, 0}, {0x581f, 0x17, 0, 0}, {0x5820, 0x11, 0, 0}, {0x5821, 0x11, 0, 0}, {0x5822, 0x15, 0, 0}, {0x5823, 0x28, 0, 0}, {0x5824, 0x46, 0, 0}, {0x5825, 0x26, 0, 0}, {0x5826, 0x08, 0, 0}, {0x5827, 0x26, 0, 0}, {0x5828, 0x64, 0, 0}, {0x5829, 0x26, 0, 0}, {0x582a, 0x24, 0, 0}, {0x582b, 0x22, 0, 0}, {0x582c, 0x24, 0, 0}, {0x582d, 0x24, 0, 0}, {0x582e, 0x06, 0, 0}, {0x582f, 0x22, 0, 0}, {0x5830, 0x40, 0, 0}, {0x5831, 0x42, 0, 0}, {0x5832, 0x24, 0, 0}, {0x5833, 0x26, 0, 0}, {0x5834, 0x24, 0, 0}, {0x5835, 0x22, 0, 0}, {0x5836, 0x22, 0, 0}, {0x5837, 0x26, 0, 0}, {0x5838, 0x44, 0, 0}, {0x5839, 0x24, 0, 0}, {0x583a, 0x26, 0, 0}, {0x583b, 0x28, 0, 0}, {0x583c, 0x42, 0, 0}, {0x583d, 0xce, 0, 0}, {0x5025, 0x00, 0, 0}, {0x3a0f, 0x30, 0, 0}, {0x3a10, 0x28, 0, 0}, {0x3a1b, 0x30, 0, 0}, {0x3a1e, 0x26, 0, 0}, {0x3a11, 0x60, 0, 0}, {0x3a1f, 0x14, 0, 0}, {0x3008, 0x42, 0, 0}, {0x3c00, 0x04, 0, 300}, }; static struct reg_value ov5640_setting_30fps_QVGA_320_240[] = { {0x3008, 0x42, 0, 0}, {0x3035, 0x12, 0, 0}, {0x3036, 0x38, 0, 0}, {0x3c07, 0x08, 0, 0}, {0x3c09, 0x1c, 0, 0}, {0x3c0a, 0x9c, 0, 0}, {0x3c0b, 0x40, 0, 0}, {0x3820, 0x41, 0, 0}, {0x3821, 0x07, 0, 0}, {0x3814, 0x31, 0, 0}, {0x3815, 0x31, 0, 0}, {0x3800, 0x00, 0, 0}, {0x3801, 0x00, 0, 0}, {0x3802, 0x00, 0, 0}, {0x3803, 0x04, 0, 0}, {0x3804, 0x0a, 0, 0}, {0x3805, 0x3f, 0, 0}, {0x3806, 0x07, 0, 0}, {0x3807, 0x9b, 0, 0}, {0x3808, 0x01, 0, 0}, {0x3809, 0x40, 0, 0}, {0x380a, 0x00, 0, 0}, {0x380b, 0xF0, 0, 0}, {0x380c, 0x07, 0, 0}, {0x380d, 0x68, 0, 0}, {0x380e, 0x04, 0, 0}, {0x380f, 0x38, 0, 0}, {0x3810, 0x00, 0, 0}, {0x3811, 0x10, 0, 0}, {0x3812, 0x00, 0, 0}, {0x3813, 0x06, 0, 0}, {0x3618, 0x00, 0, 0}, {0x3612, 0x29, 0, 0}, {0x3708, 0x64, 0, 0}, {0x3709, 0x52, 0, 0}, {0x370c, 0x03, 0, 0}, {0x3a02, 0x03, 0, 0}, {0x3a03, 0xd8, 0, 0}, {0x3a08, 0x01, 0, 0}, {0x3a09, 0x0e, 0, 0}, {0x3a0a, 0x00, 0, 0}, {0x3a0b, 0xf6, 0, 0}, {0x3a0e, 0x03, 0, 0}, {0x3a0d, 0x04, 0, 0}, {0x3a14, 0x03, 0, 0}, {0x3a15, 0xd8, 0, 0}, {0x4001, 0x02, 0, 0}, {0x4004, 0x02, 0, 0}, {0x4713, 0x03, 0, 0}, {0x4407, 0x04, 0, 0}, {0x460b, 0x35, 0, 0}, {0x460c, 0x22, 0, 0}, {0x3824, 0x02, 0, 0}, {0x5001, 0xa3, 0, 0}, {0x4005, 0x1a, 0, 0}, {0x3008, 0x02, 0, 0}, {0x3503, 0x00, 0, 0}, }; static struct reg_value ov5640_setting_30fps_VGA_640_480[] = { {0x3008, 0x42, 0, 0}, {0x3035, 0x12, 0, 0}, {0x3036, 0x38, 0, 0}, {0x3c07, 0x08, 0, 0}, {0x3c09, 0x1c, 0, 0}, {0x3c0a, 0x9c, 0, 0}, {0x3c0b, 0x40, 0, 0}, {0x3820, 0x41, 0, 0}, {0x3821, 0x07, 0, 0}, {0x3814, 0x31, 0, 0}, {0x3815, 0x31, 0, 0}, {0x3800, 0x00, 0, 0}, {0x3801, 0x00, 0, 0}, {0x3802, 0x00, 0, 0}, {0x3803, 0x04, 0, 0}, {0x3804, 0x0a, 0, 0}, {0x3805, 0x3f, 0, 0}, {0x3806, 0x07, 0, 0}, {0x3807, 0x9b, 0, 0}, {0x3808, 0x02, 0, 0}, {0x3809, 0x80, 0, 0}, {0x380a, 0x01, 0, 0}, {0x380b, 0xe0, 0, 0}, {0x380c, 0x07, 0, 0}, {0x380d, 0x68, 0, 0}, {0x380e, 0x04, 0, 0}, {0x380f, 0x38, 0, 0}, {0x3810, 0x00, 0, 0}, {0x3811, 0x10, 0, 0}, {0x3812, 0x00, 0, 0}, {0x3813, 0x06, 0, 0}, {0x3618, 0x00, 0, 0}, {0x3612, 0x29, 0, 0}, {0x3708, 0x64, 0, 0}, {0x3709, 0x52, 0, 0}, {0x370c, 0x03, 0, 0}, {0x3a02, 0x03, 0, 0}, {0x3a03, 0xd8, 0, 0}, {0x3a08, 0x01, 0, 0}, {0x3a09, 0x0e, 0, 0}, {0x3a0a, 0x00, 0, 0}, {0x3a0b, 0xf6, 0, 0}, {0x3a0e, 0x03, 0, 0}, {0x3a0d, 0x04, 0, 0}, {0x3a14, 0x03, 0, 0}, {0x3a15, 0xd8, 0, 0}, {0x4001, 0x02, 0, 0}, {0x4004, 0x02, 0, 0}, {0x4713, 0x03, 0, 0}, {0x4407, 0x04, 0, 0}, {0x460b, 0x35, 0, 0}, {0x460c, 0x22, 0, 0}, {0x3824, 0x02, 0, 0}, {0x5001, 0xa3, 0, 0}, {0x4005, 0x1a, 0, 0}, {0x3008, 0x02, 0, 0}, {0x3503, 0x00, 0, 0}, }; static struct reg_value ov5640_setting_30fps_NTSC_720_480[] = { {0x3008, 0x42, 0, 0}, {0x3035, 0x12, 0, 0}, {0x3036, 0x38, 0, 0}, {0x3c07, 0x08, 0, 0}, {0x3c09, 0x1c, 0, 0}, {0x3c0a, 0x9c, 0, 0}, {0x3c0b, 0x40, 0, 0}, {0x3820, 0x41, 0, 0}, {0x3821, 0x07, 0, 0}, {0x3814, 0x31, 0, 0}, {0x3815, 0x31, 0, 0}, {0x3800, 0x00, 0, 0}, {0x3801, 0x00, 0, 0}, {0x3802, 0x00, 0, 0}, {0x3803, 0x04, 0, 0}, {0x3804, 0x0a, 0, 0}, {0x3805, 0x3f, 0, 0}, {0x3806, 0x07, 0, 0}, {0x3807, 0x9b, 0, 0}, {0x3808, 0x02, 0, 0}, {0x3809, 0xd0, 0, 0}, {0x380a, 0x01, 0, 0}, {0x380b, 0xe0, 0, 0}, {0x380c, 0x07, 0, 0}, {0x380d, 0x68, 0, 0}, {0x380e, 0x03, 0, 0}, {0x380f, 0xd8, 0, 0}, {0x3810, 0x00, 0, 0}, {0x3811, 0x10, 0, 0}, {0x3812, 0x00, 0, 0}, {0x3813, 0x3c, 0, 0}, {0x3618, 0x00, 0, 0}, {0x3612, 0x29, 0, 0}, {0x3708, 0x64, 0, 0}, {0x3709, 0x52, 0, 0}, {0x370c, 0x03, 0, 0}, {0x3a02, 0x03, 0, 0}, {0x3a03, 0xd8, 0, 0}, {0x3a08, 0x01, 0, 0}, {0x3a09, 0x27, 0, 0}, {0x3a0a, 0x00, 0, 0}, {0x3a0b, 0xf6, 0, 0}, {0x3a0e, 0x03, 0, 0}, {0x3a0d, 0x04, 0, 0}, {0x3a14, 0x03, 0, 0}, {0x3a15, 0xd8, 0, 0}, {0x4001, 0x02, 0, 0}, {0x4004, 0x02, 0, 0}, {0x4713, 0x03, 0, 0}, {0x4407, 0x04, 0, 0}, {0x460b, 0x35, 0, 0}, {0x460c, 0x22, 0, 0}, {0x3824, 0x02, 0, 0}, {0x5001, 0xa3, 0, 0}, {0x4005, 0x1a, 0, 0}, {0x3008, 0x02, 0, 0}, {0x3503, 0, 0, 0}, }; static struct reg_value ov5640_setting_30fps_720P_1280_720[] = { {0x3008, 0x42, 0, 0}, {0x3035, 0x21, 0, 0}, {0x3036, 0x54, 0, 0}, {0x3c07, 0x07, 0, 0}, {0x3c09, 0x1c, 0, 0}, {0x3c0a, 0x9c, 0, 0}, {0x3c0b, 0x40, 0, 0}, {0x3820, 0x41, 0, 0}, {0x3821, 0x07, 0, 0}, {0x3814, 0x31, 0, 0}, {0x3815, 0x31, 0, 0}, {0x3800, 0x00, 0, 0}, {0x3801, 0x00, 0, 0}, {0x3802, 0x00, 0, 0}, {0x3803, 0xfa, 0, 0}, {0x3804, 0x0a, 0, 0}, {0x3805, 0x3f, 0, 0}, {0x3806, 0x06, 0, 0}, {0x3807, 0xa9, 0, 0}, {0x3808, 0x05, 0, 0}, {0x3809, 0x00, 0, 0}, {0x380a, 0x02, 0, 0}, {0x380b, 0xd0, 0, 0}, {0x380c, 0x07, 0, 0}, {0x380d, 0x64, 0, 0}, {0x380e, 0x02, 0, 0}, {0x380f, 0xe4, 0, 0}, {0x3810, 0x00, 0, 0}, {0x3811, 0x10, 0, 0}, {0x3812, 0x00, 0, 0}, {0x3813, 0x04, 0, 0}, {0x3618, 0x00, 0, 0}, {0x3612, 0x29, 0, 0}, {0x3708, 0x64, 0, 0}, {0x3709, 0x52, 0, 0}, {0x370c, 0x03, 0, 0}, {0x3a02, 0x02, 0, 0}, {0x3a03, 0xe4, 0, 0}, {0x3a08, 0x01, 0, 0}, {0x3a09, 0xbc, 0, 0}, {0x3a0a, 0x01, 0, 0}, {0x3a0b, 0x72, 0, 0}, {0x3a0e, 0x01, 0, 0}, {0x3a0d, 0x02, 0, 0}, {0x3a14, 0x02, 0, 0}, {0x3a15, 0xe4, 0, 0}, {0x4001, 0x02, 0, 0}, {0x4004, 0x02, 0, 0}, {0x4713, 0x02, 0, 0}, {0x4407, 0x04, 0, 0}, {0x460b, 0x37, 0, 0}, {0x460c, 0x20, 0, 0}, {0x3824, 0x04, 0, 0}, {0x5001, 0x83, 0, 0}, {0x4005, 0x1a, 0, 0}, {0x3008, 0x02, 0, 0}, {0x3503, 0, 0, 0}, }; static struct reg_value ov5640_setting_30fps_1080P_1920_1080[] = { {0x3008, 0x42, 0, 0}, {0x3035, 0x21, 0, 0}, {0x3036, 0x54, 0, 0}, {0x3c07, 0x08, 0, 0}, {0x3c09, 0x1c, 0, 0}, {0x3c0a, 0x9c, 0, 0}, {0x3c0b, 0x40, 0, 0}, {0x3820, 0x40, 0, 0}, {0x3821, 0x06, 0, 0}, {0x3814, 0x11, 0, 0}, {0x3815, 0x11, 0, 0}, {0x3800, 0x00, 0, 0}, {0x3801, 0x00, 0, 0}, {0x3802, 0x00, 0, 0}, {0x3803, 0x00, 0, 0}, {0x3804, 0x0a, 0, 0}, {0x3805, 0x3f, 0, 0}, {0x3806, 0x07, 0, 0}, {0x3807, 0x9f, 0, 0}, {0x3808, 0x0a, 0, 0}, {0x3809, 0x20, 0, 0}, {0x380a, 0x07, 0, 0}, {0x380b, 0x98, 0, 0}, {0x380c, 0x0b, 0, 0}, {0x380d, 0x1c, 0, 0}, {0x380e, 0x07, 0, 0}, {0x380f, 0xb0, 0, 0}, {0x3810, 0x00, 0, 0}, {0x3811, 0x10, 0, 0}, {0x3812, 0x00, 0, 0}, {0x3813, 0x04, 0, 0}, {0x3618, 0x04, 0, 0}, {0x3612, 0x29, 0, 0}, {0x3708, 0x21, 0, 0}, {0x3709, 0x12, 0, 0}, {0x370c, 0x00, 0, 0}, {0x3a02, 0x03, 0, 0}, {0x3a03, 0xd8, 0, 0}, {0x3a08, 0x01, 0, 0}, {0x3a09, 0x27, 0, 0}, {0x3a0a, 0x00, 0, 0}, {0x3a0b, 0xf6, 0, 0}, {0x3a0e, 0x03, 0, 0}, {0x3a0d, 0x04, 0, 0}, {0x3a14, 0x03, 0, 0}, {0x3a15, 0xd8, 0, 0}, {0x4001, 0x02, 0, 0}, {0x4004, 0x06, 0, 0}, {0x4713, 0x03, 0, 0}, {0x4407, 0x04, 0, 0}, {0x460b, 0x35, 0, 0}, {0x460c, 0x22, 0, 0}, {0x3824, 0x02, 0, 0}, {0x5001, 0x83, 0, 0}, {0x3035, 0x11, 0, 0}, {0x3036, 0x54, 0, 0}, {0x3c07, 0x07, 0, 0}, {0x3c08, 0x00, 0, 0}, {0x3c09, 0x1c, 0, 0}, {0x3c0a, 0x9c, 0, 0}, {0x3c0b, 0x40, 0, 0}, {0x3800, 0x01, 0, 0}, {0x3801, 0x50, 0, 0}, {0x3802, 0x01, 0, 0}, {0x3803, 0xb2, 0, 0}, {0x3804, 0x08, 0, 0}, {0x3805, 0xef, 0, 0}, {0x3806, 0x05, 0, 0}, {0x3807, 0xf1, 0, 0}, {0x3808, 0x07, 0, 0}, {0x3809, 0x80, 0, 0}, {0x380a, 0x04, 0, 0}, {0x380b, 0x38, 0, 0}, {0x380c, 0x09, 0, 0}, {0x380d, 0xc4, 0, 0}, {0x380e, 0x04, 0, 0}, {0x380f, 0x60, 0, 0}, {0x3612, 0x2b, 0, 0}, {0x3708, 0x64, 0, 0}, {0x3a02, 0x04, 0, 0}, {0x3a03, 0x60, 0, 0}, {0x3a08, 0x01, 0, 0}, {0x3a09, 0x50, 0, 0}, {0x3a0a, 0x01, 0, 0}, {0x3a0b, 0x18, 0, 0}, {0x3a0e, 0x03, 0, 0}, {0x3a0d, 0x04, 0, 0}, {0x3a14, 0x04, 0, 0}, {0x3a15, 0x60, 0, 0}, {0x4713, 0x02, 0, 0}, {0x4407, 0x04, 0, 0}, {0x460b, 0x37, 0, 0}, {0x460c, 0x20, 0, 0}, {0x3824, 0x04, 0, 0}, {0x4005, 0x1a, 0, 0}, {0x3008, 0x02, 0, 0}, {0x3503, 0, 0, 0}, }; static struct reg_value ov5640_setting_15fps_QSXGA_2592_1944[] = { {0x3008, 0x42, 0, 0}, {0x3820, 0x40, 0, 0}, {0x3821, 0x06, 0, 0}, /*disable flip*/ {0x3035, 0x11, 0, 0}, {0x3036, 0x54, 0, 0}, {0x3c07, 0x08, 0, 0}, {0x3c09, 0x1c, 0, 0}, {0x3c0a, 0x9c, 0, 0}, {0x3c0b, 0x40, 0, 0}, {0x3820, 0x40, 0, 0}, {0x3821, 0x06, 0, 0}, {0x3814, 0x11, 0, 0}, {0x3815, 0x11, 0, 0}, {0x3800, 0x00, 0, 0}, {0x3801, 0x00, 0, 0}, {0x3802, 0x00, 0, 0}, {0x3803, 0x00, 0, 0}, {0x3804, 0x0a, 0, 0}, {0x3805, 0x3f, 0, 0}, {0x3806, 0x07, 0, 0}, {0x3807, 0x9f, 0, 0}, {0x3808, 0x0a, 0, 0}, {0x3809, 0x20, 0, 0}, {0x380a, 0x07, 0, 0}, {0x380b, 0x98, 0, 0}, {0x380c, 0x0b, 0, 0}, {0x380d, 0x1c, 0, 0}, {0x380e, 0x07, 0, 0}, {0x380f, 0xb0, 0, 0}, {0x3810, 0x00, 0, 0}, {0x3811, 0x10, 0, 0}, {0x3812, 0x00, 0, 0}, {0x3813, 0x04, 0, 0}, {0x3618, 0x04, 0, 0}, {0x3612, 0x29, 0, 0}, {0x3708, 0x21, 0, 0}, {0x3709, 0x12, 0, 0}, {0x370c, 0x00, 0, 0}, {0x3a02, 0x03, 0, 0}, {0x3a03, 0xd8, 0, 0}, {0x3a08, 0x01, 0, 0}, {0x3a09, 0x27, 0, 0}, {0x3a0a, 0x00, 0, 0}, {0x3a0b, 0xf6, 0, 0}, {0x3a0e, 0x03, 0, 0}, {0x3a0d, 0x04, 0, 0}, {0x3a14, 0x03, 0, 0}, {0x3a15, 0xd8, 0, 0}, {0x4001, 0x02, 0, 0}, {0x4004, 0x06, 0, 0}, {0x4713, 0x03, 0, 0}, {0x4407, 0x04, 0, 0}, {0x460b, 0x35, 0, 0}, {0x460c, 0x22, 0, 0}, {0x3824, 0x02, 0, 0}, {0x5001, 0x83, 0, 70}, {0x3008, 0x02, 0, 0}, }; static struct ov5640_mode_info ov5640_mode_info_data[2][ov5640_mode_MAX + 1] = { { {ov5640_mode_VGA_640_480, -1, 0, 0, NULL, 0}, {ov5640_mode_QVGA_320_240, -1, 0, 0, NULL, 0}, {ov5640_mode_NTSC_720_480, -1, 0, 0, NULL, 0}, {ov5640_mode_720P_1280_720, -1, 0, 0, NULL, 0}, {ov5640_mode_1080P_1920_1080, -1, 0, 0, NULL, 0}, {ov5640_mode_QSXGA_2592_1944, SCALING, 2592, 1944, ov5640_setting_15fps_QSXGA_2592_1944, ARRAY_SIZE(ov5640_setting_15fps_QSXGA_2592_1944)}, }, { {ov5640_mode_VGA_640_480, SUBSAMPLING, 640, 480, ov5640_setting_30fps_VGA_640_480, ARRAY_SIZE(ov5640_setting_30fps_VGA_640_480)}, {ov5640_mode_QVGA_320_240, SUBSAMPLING, 320, 240, ov5640_setting_30fps_QVGA_320_240, ARRAY_SIZE(ov5640_setting_30fps_QVGA_320_240)}, {ov5640_mode_NTSC_720_480, SUBSAMPLING, 720, 480, ov5640_setting_30fps_NTSC_720_480, ARRAY_SIZE(ov5640_setting_30fps_NTSC_720_480)}, {ov5640_mode_720P_1280_720, SUBSAMPLING, 1280, 720, ov5640_setting_30fps_720P_1280_720, ARRAY_SIZE(ov5640_setting_30fps_720P_1280_720)}, {ov5640_mode_1080P_1920_1080, SCALING, 1920, 1080, ov5640_setting_30fps_1080P_1920_1080, ARRAY_SIZE(ov5640_setting_30fps_1080P_1920_1080)}, {ov5640_mode_QSXGA_2592_1944, -1, 0, 0, NULL, 0}, }, }; static struct regulator *io_regulator; static struct regulator *core_regulator; static struct regulator *analog_regulator; static struct regulator *gpo_regulator; static DEFINE_MUTEX(ov5640_mutex); static int ov5640_probe(struct i2c_client *adapter, const struct i2c_device_id *device_id); static int ov5640_remove(struct i2c_client *client); static s32 ov5640_read_reg(struct ov5640 *sensor, u16 reg, u8 *val); static s32 ov5640_write_reg(struct ov5640 *sensor, u16 reg, u8 val); static const struct i2c_device_id ov5640_id[] = { {"ov5640_mipi", 0}, {}, }; MODULE_DEVICE_TABLE(i2c, ov5640_id); static struct i2c_driver ov5640_i2c_driver = { .driver = { .owner = THIS_MODULE, .name = "ov5640_mipi", }, .probe = ov5640_probe, .remove = ov5640_remove, .id_table = ov5640_id, }; static const struct ov5640_datafmt ov5640_colour_fmts[] = { {MEDIA_BUS_FMT_YUYV8_2X8, V4L2_COLORSPACE_JPEG}, }; static int get_capturemode(int width, int height) { int i; for (i = 0; i < ARRAY_SIZE(ov5640_valid_res); i++) { if ((ov5640_valid_res[i].width == width) && (ov5640_valid_res[i].height == height)) return i; } return -1; } static struct ov5640 *to_ov5640(const struct i2c_client *client) { return container_of(i2c_get_clientdata(client), struct ov5640, subdev); } /* Find a data format by a pixel code in an array */ static const struct ov5640_datafmt *ov5640_find_datafmt(u32 code) { int i; for (i = 0; i < ARRAY_SIZE(ov5640_colour_fmts); i++) if (ov5640_colour_fmts[i].code == code) return ov5640_colour_fmts + i; return NULL; } static inline void ov5640_power_down(struct ov5640 *sensor, int enable) { if (sensor->pwn_gpio < 0) return; if (!enable) gpio_set_value_cansleep(sensor->pwn_gpio, 0); else gpio_set_value_cansleep(sensor->pwn_gpio, 1); msleep(2); } static int ov5640_update_slave_id(struct ov5640 *sensor) { struct device *dev = &sensor->i2c_client->dev; u8 slave_id; struct i2c_client *tmp_client; s32 retval; if (sensor->i2c_client->addr << 1 == DEFAULT_SCCB_ID) return 0; /* nothing to do */ /* Change camera i2c slave address */ slave_id = (u8)(sensor->i2c_client->addr << 1); /* new slave id*/ tmp_client = sensor->i2c_client; sensor->i2c_client = i2c_new_dummy(tmp_client->adapter, DEFAULT_SCCB_ID >> 1); if (!sensor->i2c_client) { dev_err(dev, "Failed to communicate on 0x%x\n", DEFAULT_SCCB_ID); return -1; } retval = ov5640_write_reg(sensor, 0x3100, slave_id); i2c_unregister_device(sensor->i2c_client); sensor->i2c_client = tmp_client; if (retval != 0) { dev_err(dev, "Failed to update SCCB_ID to 0x%x\n", slave_id); return -1; } ov5640_read_reg(sensor, 0x3100, &slave_id); dev_dbg(dev, "Updated SCCB_ID 0x%x\n", slave_id); return 0; } static void ov5640_reset(struct ov5640 *sensor) { if (sensor->rst_gpio < 0 || sensor->pwn_gpio < 0) return; /* camera reset */ gpio_set_value(sensor->rst_gpio, 1); /* camera power dowmn */ gpio_set_value(sensor->pwn_gpio, 1); msleep(5); gpio_set_value(sensor->rst_gpio, 0); msleep(1); gpio_set_value(sensor->pwn_gpio, 0); msleep(5); gpio_set_value(sensor->rst_gpio, 1); msleep(5); } static int ov5640_regulator_enable(struct device *dev) { int ret = 0; io_regulator = devm_regulator_get(dev, "DOVDD"); if (!IS_ERR(io_regulator)) { regulator_set_voltage(io_regulator, OV5640_VOLTAGE_DIGITAL_IO, OV5640_VOLTAGE_DIGITAL_IO); ret = regulator_enable(io_regulator); if (ret) { pr_err("%s:io set voltage error\n", __func__); return ret; } else { dev_dbg(dev, "%s:io set voltage ok\n", __func__); } } else { pr_err("%s: cannot get io voltage error\n", __func__); io_regulator = NULL; } core_regulator = devm_regulator_get(dev, "DVDD"); if (!IS_ERR(core_regulator)) { regulator_set_voltage(core_regulator, OV5640_VOLTAGE_DIGITAL_CORE, OV5640_VOLTAGE_DIGITAL_CORE); ret = regulator_enable(core_regulator); if (ret) { pr_err("%s:core set voltage error\n", __func__); return ret; } else { dev_dbg(dev, "%s:core set voltage ok\n", __func__); } } else { core_regulator = NULL; pr_err("%s: cannot get core voltage error\n", __func__); } analog_regulator = devm_regulator_get(dev, "AVDD"); if (!IS_ERR(analog_regulator)) { regulator_set_voltage(analog_regulator, OV5640_VOLTAGE_ANALOG, OV5640_VOLTAGE_ANALOG); ret = regulator_enable(analog_regulator); if (ret) { pr_err("%s:analog set voltage error\n", __func__); return ret; } else { dev_dbg(dev, "%s:analog set voltage ok\n", __func__); } } else { analog_regulator = NULL; pr_err("%s: cannot get analog voltage error\n", __func__); } return ret; } static s32 ov5640_write_reg(struct ov5640 *sensor, u16 reg, u8 val) { struct device *dev = &sensor->i2c_client->dev; u8 au8Buf[3] = {0}; au8Buf[0] = reg >> 8; au8Buf[1] = reg & 0xff; au8Buf[2] = val; if (i2c_master_send(sensor->i2c_client, au8Buf, 3) < 0) { dev_err(dev, "Write reg error: reg=%x, val=%x\n", reg, val); return -1; } return 0; } static s32 ov5640_read_reg(struct ov5640 *sensor, u16 reg, u8 *val) { struct device *dev = &sensor->i2c_client->dev; u8 au8RegBuf[2] = {0}; u8 u8RdVal = 0; au8RegBuf[0] = reg >> 8; au8RegBuf[1] = reg & 0xff; if (i2c_master_send(sensor->i2c_client, au8RegBuf, 2) != 2) { dev_err(dev, "Read reg error: reg=%x\n", reg); return -1; } if (i2c_master_recv(sensor->i2c_client, &u8RdVal, 1) != 1) { dev_err(dev, "Read reg error: reg=%x, val=%x\n", reg, u8RdVal); return -1; } *val = u8RdVal; return u8RdVal; } static int prev_sysclk, prev_HTS; static int AE_low, AE_high, AE_Target = 52; static void OV5640_stream_on(struct ov5640 *sensor) { ov5640_write_reg(sensor, 0x4202, 0x00); } static void OV5640_stream_off(struct ov5640 *sensor) { ov5640_write_reg(sensor, 0x4202, 0x0f); ov5640_write_reg(sensor, 0x3008, 0x42); } static int OV5640_get_sysclk(struct ov5640 *sensor) { /* calculate sysclk */ int xvclk = sensor->mclk / 10000; int temp1, temp2; int Multiplier, PreDiv, VCO, SysDiv, Pll_rdiv; int Bit_div2x = 1, sclk_rdiv, sysclk; u8 temp; int sclk_rdiv_map[] = {1, 2, 4, 8}; temp1 = ov5640_read_reg(sensor, 0x3034, &temp); temp2 = temp1 & 0x0f; if (temp2 == 8 || temp2 == 10) Bit_div2x = temp2 / 2; temp1 = ov5640_read_reg(sensor, 0x3035, &temp); SysDiv = temp1>>4; if (SysDiv == 0) SysDiv = 16; temp1 = ov5640_read_reg(sensor, 0x3036, &temp); Multiplier = temp1; temp1 = ov5640_read_reg(sensor, 0x3037, &temp); PreDiv = temp1 & 0x0f; Pll_rdiv = ((temp1 >> 4) & 0x01) + 1; temp1 = ov5640_read_reg(sensor, 0x3108, &temp); temp2 = temp1 & 0x03; sclk_rdiv = sclk_rdiv_map[temp2]; VCO = xvclk * Multiplier / PreDiv; sysclk = VCO / SysDiv / Pll_rdiv * 2 / Bit_div2x / sclk_rdiv; return sysclk; } static void OV5640_set_night_mode(struct ov5640 *sensor) { /* read HTS from register settings */ u8 mode; ov5640_read_reg(sensor, 0x3a00, &mode); mode &= 0xfb; ov5640_write_reg(sensor, 0x3a00, mode); } static int OV5640_get_HTS(struct ov5640 *sensor) { /* read HTS from register settings */ int HTS; u8 temp; HTS = ov5640_read_reg(sensor, 0x380c, &temp); HTS = (HTS<<8) + ov5640_read_reg(sensor, 0x380d, &temp); return HTS; } static int OV5640_get_VTS(struct ov5640 *sensor) { /* read VTS from register settings */ int VTS; u8 temp; /* total vertical size[15:8] high byte */ VTS = ov5640_read_reg(sensor, 0x380e, &temp); VTS = (VTS<<8) + ov5640_read_reg(sensor, 0x380f, &temp); return VTS; } static int OV5640_set_VTS(struct ov5640 *sensor, int VTS) { /* write VTS to registers */ int temp; temp = VTS & 0xff; ov5640_write_reg(sensor, 0x380f, temp); temp = VTS>>8; ov5640_write_reg(sensor, 0x380e, temp); return 0; } static int OV5640_get_shutter(struct ov5640 *sensor) { /* read shutter, in number of line period */ int shutter; u8 temp; shutter = (ov5640_read_reg(sensor, 0x03500, &temp) & 0x0f); shutter = (shutter<<8) + ov5640_read_reg(sensor, 0x3501, &temp); shutter = (shutter<<4) + (ov5640_read_reg(sensor, 0x3502, &temp)>>4); return shutter; } static int OV5640_set_shutter(struct ov5640 *sensor, int shutter) { /* write shutter, in number of line period */ int temp; shutter = shutter & 0xffff; temp = shutter & 0x0f; temp = temp<<4; ov5640_write_reg(sensor, 0x3502, temp); temp = shutter & 0xfff; temp = temp>>4; ov5640_write_reg(sensor, 0x3501, temp); temp = shutter>>12; ov5640_write_reg(sensor, 0x3500, temp); return 0; } static int OV5640_get_gain16(struct ov5640 *sensor) { /* read gain, 16 = 1x */ int gain16; u8 temp; gain16 = ov5640_read_reg(sensor, 0x350a, &temp) & 0x03; gain16 = (gain16<<8) + ov5640_read_reg(sensor, 0x350b, &temp); return gain16; } static int OV5640_set_gain16(struct ov5640 *sensor, int gain16) { /* write gain, 16 = 1x */ u8 temp; gain16 = gain16 & 0x3ff; temp = gain16 & 0xff; ov5640_write_reg(sensor, 0x350b, temp); temp = gain16>>8; ov5640_write_reg(sensor, 0x350a, temp); return 0; } static int OV5640_get_light_freq(struct ov5640 *sensor) { /* get banding filter value */ int temp, temp1, light_freq = 0; u8 tmp; temp = ov5640_read_reg(sensor, 0x3c01, &tmp); if (temp & 0x80) { /* manual */ temp1 = ov5640_read_reg(sensor, 0x3c00, &tmp); if (temp1 & 0x04) { /* 50Hz */ light_freq = 50; } else { /* 60Hz */ light_freq = 60; } } else { /* auto */ temp1 = ov5640_read_reg(sensor, 0x3c0c, &tmp); if (temp1 & 0x01) { /* 50Hz */ light_freq = 50; } else { /* 60Hz */ } } return light_freq; } static void OV5640_set_bandingfilter(struct ov5640 *sensor) { int prev_VTS; int band_step60, max_band60, band_step50, max_band50; /* read preview PCLK */ prev_sysclk = OV5640_get_sysclk(sensor); /* read preview HTS */ prev_HTS = OV5640_get_HTS(sensor); /* read preview VTS */ prev_VTS = OV5640_get_VTS(sensor); /* calculate banding filter */ /* 60Hz */ band_step60 = prev_sysclk * 100/prev_HTS * 100/120; ov5640_write_reg(sensor, 0x3a0a, (band_step60 >> 8)); ov5640_write_reg(sensor, 0x3a0b, (band_step60 & 0xff)); max_band60 = (int)((prev_VTS-4)/band_step60); ov5640_write_reg(sensor, 0x3a0d, max_band60); /* 50Hz */ band_step50 = prev_sysclk * 100/prev_HTS; ov5640_write_reg(sensor, 0x3a08, (band_step50 >> 8)); ov5640_write_reg(sensor, 0x3a09, (band_step50 & 0xff)); max_band50 = (int)((prev_VTS-4)/band_step50); ov5640_write_reg(sensor, 0x3a0e, max_band50); } static int OV5640_set_AE_target(struct ov5640 *sensor, int target) { /* stable in high */ int fast_high, fast_low; AE_low = target * 23 / 25; /* 0.92 */ AE_high = target * 27 / 25; /* 1.08 */ fast_high = AE_high<<1; if (fast_high > 255) fast_high = 255; fast_low = AE_low >> 1; ov5640_write_reg(sensor, 0x3a0f, AE_high); ov5640_write_reg(sensor, 0x3a10, AE_low); ov5640_write_reg(sensor, 0x3a1b, AE_high); ov5640_write_reg(sensor, 0x3a1e, AE_low); ov5640_write_reg(sensor, 0x3a11, fast_high); ov5640_write_reg(sensor, 0x3a1f, fast_low); return 0; } static void OV5640_turn_on_AE_AG(struct ov5640 *sensor, int enable) { u8 ae_ag_ctrl; ov5640_read_reg(sensor, 0x3503, &ae_ag_ctrl); if (enable) { /* turn on auto AE/AG */ ae_ag_ctrl = ae_ag_ctrl & ~(0x03); } else { /* turn off AE/AG */ ae_ag_ctrl = ae_ag_ctrl | 0x03; } ov5640_write_reg(sensor, 0x3503, ae_ag_ctrl); } static bool binning_on(struct ov5640 *sensor) { u8 temp; ov5640_read_reg(sensor, 0x3821, &temp); temp &= 0xfe; if (temp) return true; else return false; } static void ov5640_set_virtual_channel(struct ov5640 *sensor, int channel) { u8 channel_id; ov5640_read_reg(sensor, 0x4814, &channel_id); channel_id &= ~(3 << 6); ov5640_write_reg(sensor, 0x4814, channel_id | (channel << 6)); } /* download ov5640 settings to sensor through i2c */ static int ov5640_download_firmware(struct ov5640 *sensor, struct reg_value *pModeSetting, s32 ArySize) { register u32 Delay_ms = 0; register u16 RegAddr = 0; register u8 Mask = 0; register u8 Val = 0; u8 RegVal = 0; int i, retval = 0; for (i = 0; i < ArySize; ++i, ++pModeSetting) { Delay_ms = pModeSetting->u32Delay_ms; RegAddr = pModeSetting->u16RegAddr; Val = pModeSetting->u8Val; Mask = pModeSetting->u8Mask; if (Mask) { retval = ov5640_read_reg(sensor, RegAddr, &RegVal); if (retval < 0) goto err; RegVal &= ~(u8)Mask; Val &= Mask; Val |= RegVal; } retval = ov5640_write_reg(sensor, RegAddr, Val); if (retval < 0) goto err; if (Delay_ms) msleep(Delay_ms); } err: return retval; } /* sensor changes between scaling and subsampling * go through exposure calcualtion */ static int ov5640_change_mode_exposure_calc(struct ov5640 *sensor, enum ov5640_frame_rate frame_rate, enum ov5640_mode mode) { struct reg_value *pModeSetting = NULL; s32 ArySize = 0; u8 average; int prev_shutter, prev_gain16; int cap_shutter, cap_gain16; int cap_sysclk, cap_HTS, cap_VTS; int light_freq, cap_bandfilt, cap_maxband; long cap_gain16_shutter; int retval = 0; /* check if the input mode and frame rate is valid */ pModeSetting = ov5640_mode_info_data[frame_rate][mode].init_data_ptr; ArySize = ov5640_mode_info_data[frame_rate][mode].init_data_size; sensor->pix.width = ov5640_mode_info_data[frame_rate][mode].width; sensor->pix.height = ov5640_mode_info_data[frame_rate][mode].height; if (sensor->pix.width == 0 || sensor->pix.height == 0 || pModeSetting == NULL || ArySize == 0) return -EINVAL; /* auto focus */ /* OV5640_auto_focus();//if no af function, just skip it */ /* turn off AE/AG */ OV5640_turn_on_AE_AG(sensor, 0); /* read preview shutter */ prev_shutter = OV5640_get_shutter(sensor); if ((binning_on(sensor)) && (mode != ov5640_mode_720P_1280_720) && (mode != ov5640_mode_1080P_1920_1080)) prev_shutter *= 2; /* read preview gain */ prev_gain16 = OV5640_get_gain16(sensor); /* get average */ ov5640_read_reg(sensor, 0x56a1, &average); /* turn off night mode for capture */ OV5640_set_night_mode(sensor); /* turn off overlay */ /* ov5640_write_reg(0x3022, 0x06);//if no af function, just skip it */ OV5640_stream_off(sensor); /* Write capture setting */ retval = ov5640_download_firmware(sensor, pModeSetting, ArySize); if (retval < 0) goto err; /* read capture VTS */ cap_VTS = OV5640_get_VTS(sensor); cap_HTS = OV5640_get_HTS(sensor); cap_sysclk = OV5640_get_sysclk(sensor); /* calculate capture banding filter */ light_freq = OV5640_get_light_freq(sensor); if (light_freq == 60) { /* 60Hz */ cap_bandfilt = cap_sysclk * 100 / cap_HTS * 100 / 120; } else { /* 50Hz */ cap_bandfilt = cap_sysclk * 100 / cap_HTS; } cap_maxband = (int)((cap_VTS - 4)/cap_bandfilt); /* calculate capture shutter/gain16 */ if (average > AE_low && average < AE_high) { /* in stable range */ cap_gain16_shutter = prev_gain16 * prev_shutter * cap_sysclk/prev_sysclk * prev_HTS/cap_HTS * AE_Target / average; } else { cap_gain16_shutter = prev_gain16 * prev_shutter * cap_sysclk/prev_sysclk * prev_HTS/cap_HTS; } /* gain to shutter */ if (cap_gain16_shutter < (cap_bandfilt * 16)) { /* shutter < 1/100 */ cap_shutter = cap_gain16_shutter/16; if (cap_shutter < 1) cap_shutter = 1; cap_gain16 = cap_gain16_shutter/cap_shutter; if (cap_gain16 < 16) cap_gain16 = 16; } else { if (cap_gain16_shutter > (cap_bandfilt * cap_maxband * 16)) { /* exposure reach max */ cap_shutter = cap_bandfilt * cap_maxband; cap_gain16 = cap_gain16_shutter / cap_shutter; } else { /* 1/100 < (cap_shutter = n/100) =< max */ cap_shutter = ((int) (cap_gain16_shutter/16 / cap_bandfilt)) *cap_bandfilt; cap_gain16 = cap_gain16_shutter / cap_shutter; } } /* write capture gain */ OV5640_set_gain16(sensor, cap_gain16); /* write capture shutter */ if (cap_shutter > (cap_VTS - 4)) { cap_VTS = cap_shutter + 4; OV5640_set_VTS(sensor, cap_VTS); } OV5640_set_shutter(sensor, cap_shutter); err: return retval; } /* if sensor changes inside scaling or subsampling * change mode directly * */ static int ov5640_change_mode_direct(struct ov5640 *sensor, enum ov5640_frame_rate frame_rate, enum ov5640_mode mode) { struct reg_value *pModeSetting = NULL; s32 ArySize = 0; int retval = 0; /* check if the input mode and frame rate is valid */ pModeSetting = ov5640_mode_info_data[frame_rate][mode].init_data_ptr; ArySize = ov5640_mode_info_data[frame_rate][mode].init_data_size; sensor->pix.width = ov5640_mode_info_data[frame_rate][mode].width; sensor->pix.height = ov5640_mode_info_data[frame_rate][mode].height; if (sensor->pix.width == 0 || sensor->pix.height == 0 || pModeSetting == NULL || ArySize == 0) return -EINVAL; /* turn off AE/AG */ OV5640_turn_on_AE_AG(sensor, 0); OV5640_stream_off(sensor); /* Write capture setting */ retval = ov5640_download_firmware(sensor, pModeSetting, ArySize); if (retval < 0) goto err; OV5640_turn_on_AE_AG(sensor, 1); err: return retval; } static int ov5640_init_mode(struct ov5640 *sensor, enum ov5640_frame_rate frame_rate, enum ov5640_mode mode, enum ov5640_mode orig_mode) { struct device *dev = &sensor->i2c_client->dev; struct reg_value *pModeSetting = NULL; s32 ArySize = 0; int retval = 0; u32 msec_wait4stable = 0; enum ov5640_downsize_mode dn_mode, orig_dn_mode; if ((mode > ov5640_mode_MAX || mode < ov5640_mode_MIN) && (mode != ov5640_mode_INIT)) { dev_err(dev, "Wrong ov5640 mode detected!\n"); return -1; } dn_mode = ov5640_mode_info_data[frame_rate][mode].dn_mode; orig_dn_mode = ov5640_mode_info_data[frame_rate][orig_mode].dn_mode; if (mode == ov5640_mode_INIT) { pModeSetting = ov5640_init_setting_30fps_VGA; ArySize = ARRAY_SIZE(ov5640_init_setting_30fps_VGA); sensor->pix.width = 640; sensor->pix.height = 480; retval = ov5640_download_firmware(sensor, pModeSetting, ArySize); if (retval < 0) goto err; pModeSetting = ov5640_setting_30fps_VGA_640_480; ArySize = ARRAY_SIZE(ov5640_setting_30fps_VGA_640_480); retval = ov5640_download_firmware(sensor, pModeSetting, ArySize); } else if ((dn_mode == SUBSAMPLING && orig_dn_mode == SCALING) || (dn_mode == SCALING && orig_dn_mode == SUBSAMPLING)) { /* change between subsampling and scaling * go through exposure calucation */ retval = ov5640_change_mode_exposure_calc(sensor, frame_rate, mode); } else { /* change inside subsampling or scaling * download firmware directly */ retval = ov5640_change_mode_direct(sensor, frame_rate, mode); } if (retval < 0) goto err; OV5640_set_AE_target(sensor, AE_Target); OV5640_get_light_freq(sensor); OV5640_set_bandingfilter(sensor); ov5640_set_virtual_channel(sensor, sensor->csi); /* add delay to wait for sensor stable */ if (mode == ov5640_mode_QSXGA_2592_1944) { /* dump the first two frames: 1/7.5*2 * the frame rate of QSXGA is 7.5fps */ msec_wait4stable = 267; } else { /* dump the first eighteen frames: 1/30*18 */ msec_wait4stable = 600; } msleep(msec_wait4stable); err: return retval; } /*! * ov5640_s_power - V4L2 sensor interface handler for VIDIOC_S_POWER ioctl * @s: pointer to standard V4L2 device structure * @on: indicates power mode (on or off) * * Turns the power on or off, depending on the value of on and returns the * appropriate error code. */ static int ov5640_s_power(struct v4l2_subdev *sd, int on) { struct i2c_client *client = v4l2_get_subdevdata(sd); struct ov5640 *sensor = to_ov5640(client); if (on && !sensor->on) { if (io_regulator) if (regulator_enable(io_regulator) != 0) return -EIO; if (core_regulator) if (regulator_enable(core_regulator) != 0) return -EIO; if (gpo_regulator) if (regulator_enable(gpo_regulator) != 0) return -EIO; if (analog_regulator) if (regulator_enable(analog_regulator) != 0) return -EIO; } else if (!on && sensor->on) { if (analog_regulator) regulator_disable(analog_regulator); if (core_regulator) regulator_disable(core_regulator); if (io_regulator) regulator_disable(io_regulator); if (gpo_regulator) regulator_disable(gpo_regulator); } sensor->on = on; return 0; } /*! * ov5640_g_parm - V4L2 sensor interface handler for VIDIOC_G_PARM ioctl * @s: pointer to standard V4L2 sub device structure * @a: pointer to standard V4L2 VIDIOC_G_PARM ioctl structure * * Returns the sensor's video CAPTURE parameters. */ static int ov5640_g_parm(struct v4l2_subdev *sd, struct v4l2_streamparm *a) { struct i2c_client *client = v4l2_get_subdevdata(sd); struct ov5640 *sensor = to_ov5640(client); struct device *dev = &sensor->i2c_client->dev; struct v4l2_captureparm *cparm = &a->parm.capture; int ret = 0; switch (a->type) { /* This is the only case currently handled. */ case V4L2_BUF_TYPE_VIDEO_CAPTURE: memset(a, 0, sizeof(*a)); a->type = V4L2_BUF_TYPE_VIDEO_CAPTURE; cparm->capability = sensor->streamcap.capability; cparm->timeperframe = sensor->streamcap.timeperframe; cparm->capturemode = sensor->streamcap.capturemode; ret = 0; break; /* These are all the possible cases. */ case V4L2_BUF_TYPE_VIDEO_OUTPUT: case V4L2_BUF_TYPE_VIDEO_OVERLAY: case V4L2_BUF_TYPE_VBI_CAPTURE: case V4L2_BUF_TYPE_VBI_OUTPUT: case V4L2_BUF_TYPE_SLICED_VBI_CAPTURE: case V4L2_BUF_TYPE_SLICED_VBI_OUTPUT: ret = -EINVAL; break; default: dev_warn(dev, "Type is unknown - %d\n", a->type); ret = -EINVAL; break; } return ret; } /*! * ov5460_s_parm - V4L2 sensor interface handler for VIDIOC_S_PARM ioctl * @s: pointer to standard V4L2 sub device structure * @a: pointer to standard V4L2 VIDIOC_S_PARM ioctl structure * * Configures the sensor to use the input parameters, if possible. If * not possible, reverts to the old parameters and returns the * appropriate error code. */ static int ov5640_s_parm(struct v4l2_subdev *sd, struct v4l2_streamparm *a) { struct i2c_client *client = v4l2_get_subdevdata(sd); struct ov5640 *sensor = to_ov5640(client); struct device *dev = &sensor->i2c_client->dev; struct v4l2_fract *timeperframe = &a->parm.capture.timeperframe; u32 tgt_fps; /* target frames per secound */ enum ov5640_frame_rate frame_rate; enum ov5640_mode orig_mode; int ret = 0; switch (a->type) { /* This is the only case currently handled. */ case V4L2_BUF_TYPE_VIDEO_CAPTURE: /* Check that the new frame rate is allowed. */ if ((timeperframe->numerator == 0) || (timeperframe->denominator == 0)) { timeperframe->denominator = DEFAULT_FPS; timeperframe->numerator = 1; } tgt_fps = timeperframe->denominator / timeperframe->numerator; if (tgt_fps > MAX_FPS) { timeperframe->denominator = MAX_FPS; timeperframe->numerator = 1; } else if (tgt_fps < MIN_FPS) { timeperframe->denominator = MIN_FPS; timeperframe->numerator = 1; } /* Actual frame rate we use */ tgt_fps = timeperframe->denominator / timeperframe->numerator; if (tgt_fps == 15) frame_rate = ov5640_15_fps; else if (tgt_fps == 30) frame_rate = ov5640_30_fps; else { dev_warn(dev, "The camera frame rate is not supported!\n"); return -EINVAL; } orig_mode = sensor->streamcap.capturemode; ret = ov5640_init_mode(sensor, frame_rate, (u32)a->parm.capture.capturemode, orig_mode); if (ret < 0) return ret; sensor->streamcap.timeperframe = *timeperframe; sensor->streamcap.capturemode = (u32)a->parm.capture.capturemode; break; /* These are all the possible cases. */ case V4L2_BUF_TYPE_VIDEO_OUTPUT: case V4L2_BUF_TYPE_VIDEO_OVERLAY: case V4L2_BUF_TYPE_VBI_CAPTURE: case V4L2_BUF_TYPE_VBI_OUTPUT: case V4L2_BUF_TYPE_SLICED_VBI_CAPTURE: case V4L2_BUF_TYPE_SLICED_VBI_OUTPUT: dev_warn(dev, "Type is not V4L2_BUF_TYPE_VIDEO_CAPTURE but %d\n", a->type); ret = -EINVAL; break; default: dev_warn(dev, "Type is unknown - %d\n", a->type); ret = -EINVAL; break; } return ret; } static int ov5640_set_fmt(struct v4l2_subdev *sd, struct v4l2_subdev_pad_config *cfg, struct v4l2_subdev_format *format) { struct v4l2_mbus_framefmt *mf = &format->format; const struct ov5640_datafmt *fmt = ov5640_find_datafmt(mf->code); struct i2c_client *client = v4l2_get_subdevdata(sd); struct ov5640 *sensor = to_ov5640(client); int capturemode; if (!fmt) { mf->code = ov5640_colour_fmts[0].code; mf->colorspace = ov5640_colour_fmts[0].colorspace; } mf->field = V4L2_FIELD_NONE; if (format->which == V4L2_SUBDEV_FORMAT_TRY) return 0; sensor->fmt = fmt; capturemode = get_capturemode(mf->width, mf->height); if (capturemode >= 0) { sensor->streamcap.capturemode = capturemode; sensor->pix.width = mf->width; sensor->pix.height = mf->height; return 0; } dev_err(&client->dev, "Set format failed %d, %d\n", fmt->code, fmt->colorspace); return -EINVAL; } static int ov5640_get_fmt(struct v4l2_subdev *sd, struct v4l2_subdev_pad_config *cfg, struct v4l2_subdev_format *format) { struct v4l2_mbus_framefmt *mf = &format->format; struct i2c_client *client = v4l2_get_subdevdata(sd); struct ov5640 *sensor = to_ov5640(client); const struct ov5640_datafmt *fmt = sensor->fmt; if (format->pad) return -EINVAL; mf->code = fmt->code; mf->colorspace = fmt->colorspace; mf->field = V4L2_FIELD_NONE; mf->width = sensor->pix.width; mf->height = sensor->pix.height; return 0; } static int ov5640_enum_mbus_code(struct v4l2_subdev *sd, struct v4l2_subdev_pad_config *cfg, struct v4l2_subdev_mbus_code_enum *code) { if (code->pad || code->index >= ARRAY_SIZE(ov5640_colour_fmts)) return -EINVAL; code->code = ov5640_colour_fmts[code->index].code; return 0; } /*! * ov5640_enum_framesizes - V4L2 sensor interface handler for * VIDIOC_ENUM_FRAMESIZES ioctl * @s: pointer to standard V4L2 device structure * @fsize: standard V4L2 VIDIOC_ENUM_FRAMESIZES ioctl structure * * Return 0 if successful, otherwise -EINVAL. */ static int ov5640_enum_framesizes(struct v4l2_subdev *sd, struct v4l2_subdev_pad_config *cfg, struct v4l2_subdev_frame_size_enum *fse) { if (fse->index > ov5640_mode_MAX) return -EINVAL; fse->max_width = max(ov5640_mode_info_data[0][fse->index].width, ov5640_mode_info_data[1][fse->index].width); fse->min_width = fse->max_width; fse->max_height = max(ov5640_mode_info_data[0][fse->index].height, ov5640_mode_info_data[1][fse->index].height); fse->min_height = fse->max_height; return 0; } /*! * ov5640_enum_frameintervals - V4L2 sensor interface handler for * VIDIOC_ENUM_FRAMEINTERVALS ioctl * @s: pointer to standard V4L2 device structure * @fival: standard V4L2 VIDIOC_ENUM_FRAMEINTERVALS ioctl structure * * Return 0 if successful, otherwise -EINVAL. */ static int ov5640_enum_frameintervals(struct v4l2_subdev *sd, struct v4l2_subdev_pad_config *cfg, struct v4l2_subdev_frame_interval_enum *fie) { struct i2c_client *client = v4l2_get_subdevdata(sd); struct device *dev = &client->dev; int i, j, count = 0; if (fie->index < 0 || fie->index > ov5640_mode_MAX) return -EINVAL; if (fie->width == 0 || fie->height == 0 || fie->code == 0) { dev_warn(dev, "Please assign pixel format, width and height\n"); return -EINVAL; } fie->interval.numerator = 1; count = 0; for (i = 0; i < ARRAY_SIZE(ov5640_mode_info_data); i++) { for (j = 0; j < (ov5640_mode_MAX + 1); j++) { if (fie->width == ov5640_mode_info_data[i][j].width && fie->height == ov5640_mode_info_data[i][j].height && ov5640_mode_info_data[i][j].init_data_ptr != NULL) { count++; } if (fie->index == (count - 1)) { fie->interval.denominator = ov5640_framerates[i]; return 0; } } } return -EINVAL; } /*! * dev_init - V4L2 sensor init * @s: pointer to standard V4L2 device structure * */ static int init_device(struct ov5640 *sensor) { struct device *dev = &sensor->i2c_client->dev; u32 tgt_xclk; /* target xclk */ u32 tgt_fps; /* target frames per secound */ enum ov5640_frame_rate frame_rate; int ret; sensor->on = true; /* mclk */ tgt_xclk = sensor->mclk; tgt_xclk = min(tgt_xclk, (u32)OV5640_XCLK_MAX); tgt_xclk = max(tgt_xclk, (u32)OV5640_XCLK_MIN); sensor->mclk = tgt_xclk; dev_dbg(dev, "Setting mclk to %d MHz\n", tgt_xclk / 1000000); /* Default camera frame rate is set in probe */ tgt_fps = sensor->streamcap.timeperframe.denominator / sensor->streamcap.timeperframe.numerator; if (tgt_fps == 15) frame_rate = ov5640_15_fps; else if (tgt_fps == 30) frame_rate = ov5640_30_fps; else return -EINVAL; /* Only support 15fps or 30fps now. */ ret = ov5640_init_mode(sensor, frame_rate, ov5640_mode_INIT, ov5640_mode_INIT); return ret; } static int ov5640_s_stream(struct v4l2_subdev *sd, int enable) { struct i2c_client *client = v4l2_get_subdevdata(sd); struct ov5640 *sensor = to_ov5640(client); struct device *dev = &sensor->i2c_client->dev; dev_info(dev, "s_stream: %d\n", enable); if (enable) OV5640_stream_on(sensor); else OV5640_stream_off(sensor); return 0; } static struct v4l2_subdev_video_ops ov5640_subdev_video_ops = { .g_parm = ov5640_g_parm, .s_parm = ov5640_s_parm, .s_stream = ov5640_s_stream, }; static const struct v4l2_subdev_pad_ops ov5640_subdev_pad_ops = { .enum_frame_size = ov5640_enum_framesizes, .enum_frame_interval = ov5640_enum_frameintervals, .enum_mbus_code = ov5640_enum_mbus_code, .set_fmt = ov5640_set_fmt, .get_fmt = ov5640_get_fmt, }; static struct v4l2_subdev_core_ops ov5640_subdev_core_ops = { .s_power = ov5640_s_power, #ifdef CONFIG_VIDEO_ADV_DEBUG .g_register = ov5640_get_register, .s_register = ov5640_set_register, #endif }; static struct v4l2_subdev_ops ov5640_subdev_ops = { .core = &ov5640_subdev_core_ops, .video = &ov5640_subdev_video_ops, .pad = &ov5640_subdev_pad_ops, }; static void ov5640_adjust_setting_20mhz(void) { struct reg_value *regsetting; int i, array_size; /* adjust for INIT mode */ regsetting = ov5640_init_setting_30fps_VGA; array_size = ARRAY_SIZE(ov5640_init_setting_30fps_VGA); for (i = 0; i < array_size; i++, regsetting++) if (regsetting->u16RegAddr == 0x3037) regsetting->u8Val = 0x17; } /*! * ov5640 I2C probe function * * @param adapter struct i2c_adapter * * @return Error code indicating success or failure */ static int ov5640_probe(struct i2c_client *client, const struct i2c_device_id *id) { struct pinctrl *pinctrl; struct device *dev = &client->dev; int retval; u8 chip_id_high, chip_id_low; struct ov5640 *sensor; sensor = devm_kzalloc(dev, sizeof(*sensor), GFP_KERNEL); /* ov5640 pinctrl */ pinctrl = devm_pinctrl_get_select_default(dev); if (IS_ERR(pinctrl)) dev_warn(dev, "No pin available\n"); /* request power down pin */ sensor->pwn_gpio = of_get_named_gpio(dev->of_node, "pwn-gpios", 0); if (!gpio_is_valid(sensor->pwn_gpio)) dev_warn(dev, "No sensor pwdn pin available"); else { retval = devm_gpio_request_one(dev, sensor->pwn_gpio, GPIOF_OUT_INIT_HIGH, "ov5640_mipi_pwdn"); if (retval < 0) { dev_warn(dev, "Failed to set power pin\n"); dev_warn(dev, "retval=%d\n", retval); return retval; } } /* request reset pin */ sensor->rst_gpio = of_get_named_gpio(dev->of_node, "rst-gpios", 0); if (!gpio_is_valid(sensor->rst_gpio)) dev_warn(dev, "No sensor reset pin available"); else { retval = devm_gpio_request_one(dev, sensor->rst_gpio, GPIOF_OUT_INIT_HIGH, "ov5640_mipi_reset"); if (retval < 0) { dev_warn(dev, "Failed to set reset pin\n"); return retval; } } sensor->sensor_clk = devm_clk_get(dev, "csi_mclk"); if (IS_ERR(sensor->sensor_clk)) { /* assuming clock enabled by default */ sensor->sensor_clk = NULL; dev_err(dev, "clock-frequency missing or invalid\n"); return PTR_ERR(sensor->sensor_clk); } retval = of_property_read_u32(dev->of_node, "mclk", &(sensor->mclk)); if (retval) { dev_err(dev, "mclk missing or invalid\n"); return retval; } if (sensor->mclk == OV5640_XCLK_20MHZ) ov5640_adjust_setting_20mhz(); retval = of_property_read_u32(dev->of_node, "mclk_source", (u32 *) &(sensor->mclk_source)); if (retval) { dev_err(dev, "mclk_source missing or invalid\n"); return retval; } retval = of_property_read_u32(dev->of_node, "csi_id", &(sensor->csi)); if (retval) { dev_err(dev, "csi id missing or invalid\n"); return retval; } clk_prepare_enable(sensor->sensor_clk); sensor->io_init = ov5640_reset; sensor->i2c_client = client; sensor->pix.pixelformat = V4L2_PIX_FMT_YUYV; sensor->pix.width = 640; sensor->pix.height = 480; sensor->streamcap.capability = V4L2_MODE_HIGHQUALITY | V4L2_CAP_TIMEPERFRAME; sensor->streamcap.capturemode = 0; sensor->streamcap.timeperframe.denominator = DEFAULT_FPS; sensor->streamcap.timeperframe.numerator = 1; ov5640_regulator_enable(&client->dev); mutex_lock(&ov5640_mutex); { ov5640_reset(sensor); ov5640_power_down(sensor, 0); retval = ov5640_update_slave_id(sensor); } mutex_unlock(&ov5640_mutex); if (retval < 0) { clk_disable_unprepare(sensor->sensor_clk); return -ENODEV; } retval = ov5640_read_reg(sensor, OV5640_CHIP_ID_HIGH_BYTE, &chip_id_high); if (retval < 0 || chip_id_high != 0x56) { dev_warn(dev, "Camera is not found\n"); clk_disable_unprepare(sensor->sensor_clk); return -ENODEV; } retval = ov5640_read_reg(sensor, OV5640_CHIP_ID_LOW_BYTE, &chip_id_low); if (retval < 0 || chip_id_low != 0x40) { dev_warn(dev, "Camera is not found\n"); clk_disable_unprepare(sensor->sensor_clk); return -ENODEV; } retval = init_device(sensor); if (retval < 0) { clk_disable_unprepare(sensor->sensor_clk); dev_warn(dev, "Camera init failed\n"); ov5640_power_down(sensor, 1); return retval; } v4l2_i2c_subdev_init(&sensor->subdev, client, &ov5640_subdev_ops); sensor->subdev.grp_id = 678; retval = v4l2_async_register_subdev(&sensor->subdev); if (retval < 0) dev_err(&client->dev, "Async register failed, ret=%d\n", retval); OV5640_stream_off(sensor); dev_info(dev, "Camera is found\n"); return retval; } /*! * ov5640 I2C detach function * * @param client struct i2c_client * * @return Error code indicating success or failure */ static int ov5640_remove(struct i2c_client *client) { struct v4l2_subdev *sd = i2c_get_clientdata(client); struct ov5640 *sensor = to_ov5640(client); v4l2_async_unregister_subdev(sd); clk_disable_unprepare(sensor->sensor_clk); ov5640_power_down(sensor, 1); if (gpo_regulator) regulator_disable(gpo_regulator); if (analog_regulator) regulator_disable(analog_regulator); if (core_regulator) regulator_disable(core_regulator); if (io_regulator) regulator_disable(io_regulator); return 0; } module_i2c_driver(ov5640_i2c_driver); MODULE_AUTHOR("Freescale Semiconductor, Inc."); MODULE_DESCRIPTION("OV5640 MIPI Camera Driver"); MODULE_LICENSE("GPL"); MODULE_VERSION("1.0"); MODULE_ALIAS("CSI");