| /* |
| * Copyright (C) 2011-2016 Freescale Semiconductor, Inc. All Rights Reserved. |
| */ |
| |
| /* |
| * 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 <linux/module.h> |
| #include <linux/init.h> |
| #include <linux/slab.h> |
| #include <linux/ctype.h> |
| #include <linux/types.h> |
| #include <linux/delay.h> |
| #include <linux/clk.h> |
| #include <linux/of_device.h> |
| #include <linux/i2c.h> |
| #include <linux/of_gpio.h> |
| #include <linux/pinctrl/consumer.h> |
| #include <linux/regulator/consumer.h> |
| #include <linux/v4l2-mediabus.h> |
| #include <media/v4l2-device.h> |
| #include <media/v4l2-ctrls.h> |
| |
| #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 |
| |
| enum ov5640_mode { |
| ov5640_mode_MIN = 0, |
| ov5640_mode_VGA_640_480 = 0, |
| ov5640_mode_NTSC_720_480 = 1, |
| ov5640_mode_720P_1280_720 = 2, |
| ov5640_mode_1080P_1920_1080 = 3, |
| ov5640_mode_QSXGA_2592_1944 = 4, |
| ov5640_mode_MAX = 5, |
| 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)(void); |
| }; |
| |
| struct ov5640_res { |
| int width; |
| int height; |
| }; |
| |
| /*! |
| * Maintains the information on the current state of the sesor. |
| */ |
| static struct ov5640 ov5640_data; |
| static int pwn_gpio, rst_gpio; |
| |
| struct ov5640_res ov5640_valid_res[] = { |
| [0] = {640, 480}, |
| [1] = {720, 480}, |
| [2] = {1280, 720}, |
| [3] = {1920, 1080}, |
| [4] = {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_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}, |
| {0x4202, 0x0f, 0, 0}, /* stream off the sensor */ |
| {0x3820, 0x40, 0, 0}, {0x3821, 0x06, 0, 0}, /*disable flip*/ |
| {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, 70}, {0x3008, 0x02, 0, 0}, |
| {0x4202, 0x00, 0, 0}, /* stream on the sensor */ |
| }; |
| |
| 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_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_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 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(u16 reg, u8 *val); |
| static s32 ov5640_write_reg(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(int enable) |
| { |
| if (pwn_gpio < 0) |
| return; |
| |
| if (!enable) |
| gpio_set_value_cansleep(pwn_gpio, 0); |
| else |
| gpio_set_value_cansleep(pwn_gpio, 1); |
| |
| msleep(2); |
| } |
| |
| static void ov5640_reset(void) |
| { |
| if (rst_gpio < 0 || pwn_gpio < 0) |
| return; |
| |
| /* camera reset */ |
| gpio_set_value(rst_gpio, 1); |
| |
| /* camera power dowmn */ |
| gpio_set_value(pwn_gpio, 1); |
| msleep(5); |
| |
| gpio_set_value(rst_gpio, 0); |
| msleep(1); |
| |
| gpio_set_value(pwn_gpio, 0); |
| msleep(5); |
| |
| gpio_set_value(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(u16 reg, u8 val) |
| { |
| u8 au8Buf[3] = {0}; |
| |
| au8Buf[0] = reg >> 8; |
| au8Buf[1] = reg & 0xff; |
| au8Buf[2] = val; |
| |
| if (i2c_master_send(ov5640_data.i2c_client, au8Buf, 3) < 0) { |
| pr_err("%s:write reg error:reg=%x,val=%x\n", |
| __func__, reg, val); |
| return -1; |
| } |
| |
| return 0; |
| } |
| |
| static s32 ov5640_read_reg(u16 reg, u8 *val) |
| { |
| u8 au8RegBuf[2] = {0}; |
| u8 u8RdVal = 0; |
| |
| au8RegBuf[0] = reg >> 8; |
| au8RegBuf[1] = reg & 0xff; |
| |
| if (2 != i2c_master_send(ov5640_data.i2c_client, au8RegBuf, 2)) { |
| pr_err("%s:write reg error:reg=%x\n", |
| __func__, reg); |
| return -1; |
| } |
| |
| if (1 != i2c_master_recv(ov5640_data.i2c_client, &u8RdVal, 1)) { |
| pr_err("%s:read reg error:reg=%x,val=%x\n", |
| __func__, 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(void) |
| { |
| ov5640_write_reg(0x4202, 0x00); |
| } |
| |
| static void OV5640_stream_off(void) |
| { |
| ov5640_write_reg(0x4202, 0x0f); |
| ov5640_write_reg(0x3008, 0x42); |
| } |
| |
| static int OV5640_get_sysclk(void) |
| { |
| /* calculate sysclk */ |
| int xvclk = ov5640_data.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(0x3034, &temp); |
| temp2 = temp1 & 0x0f; |
| if (temp2 == 8 || temp2 == 10) |
| Bit_div2x = temp2 / 2; |
| |
| temp1 = ov5640_read_reg(0x3035, &temp); |
| SysDiv = temp1>>4; |
| if (SysDiv == 0) |
| SysDiv = 16; |
| |
| temp1 = ov5640_read_reg(0x3036, &temp); |
| Multiplier = temp1; |
| |
| temp1 = ov5640_read_reg(0x3037, &temp); |
| PreDiv = temp1 & 0x0f; |
| Pll_rdiv = ((temp1 >> 4) & 0x01) + 1; |
| |
| temp1 = ov5640_read_reg(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(void) |
| { |
| /* read HTS from register settings */ |
| u8 mode; |
| |
| ov5640_read_reg(0x3a00, &mode); |
| mode &= 0xfb; |
| ov5640_write_reg(0x3a00, mode); |
| } |
| |
| static int OV5640_get_HTS(void) |
| { |
| /* read HTS from register settings */ |
| int HTS; |
| u8 temp; |
| |
| HTS = ov5640_read_reg(0x380c, &temp); |
| HTS = (HTS<<8) + ov5640_read_reg(0x380d, &temp); |
| |
| return HTS; |
| } |
| |
| static int OV5640_get_VTS(void) |
| { |
| /* read VTS from register settings */ |
| int VTS; |
| u8 temp; |
| |
| /* total vertical size[15:8] high byte */ |
| VTS = ov5640_read_reg(0x380e, &temp); |
| |
| VTS = (VTS<<8) + ov5640_read_reg(0x380f, &temp); |
| |
| return VTS; |
| } |
| |
| static int OV5640_set_VTS(int VTS) |
| { |
| /* write VTS to registers */ |
| int temp; |
| |
| temp = VTS & 0xff; |
| ov5640_write_reg(0x380f, temp); |
| |
| temp = VTS>>8; |
| ov5640_write_reg(0x380e, temp); |
| |
| return 0; |
| } |
| |
| static int OV5640_get_shutter(void) |
| { |
| /* read shutter, in number of line period */ |
| int shutter; |
| u8 temp; |
| |
| shutter = (ov5640_read_reg(0x03500, &temp) & 0x0f); |
| shutter = (shutter<<8) + ov5640_read_reg(0x3501, &temp); |
| shutter = (shutter<<4) + (ov5640_read_reg(0x3502, &temp)>>4); |
| |
| return shutter; |
| } |
| |
| static int OV5640_set_shutter(int shutter) |
| { |
| /* write shutter, in number of line period */ |
| int temp; |
| |
| shutter = shutter & 0xffff; |
| |
| temp = shutter & 0x0f; |
| temp = temp<<4; |
| ov5640_write_reg(0x3502, temp); |
| |
| temp = shutter & 0xfff; |
| temp = temp>>4; |
| ov5640_write_reg(0x3501, temp); |
| |
| temp = shutter>>12; |
| ov5640_write_reg(0x3500, temp); |
| |
| return 0; |
| } |
| |
| static int OV5640_get_gain16(void) |
| { |
| /* read gain, 16 = 1x */ |
| int gain16; |
| u8 temp; |
| |
| gain16 = ov5640_read_reg(0x350a, &temp) & 0x03; |
| gain16 = (gain16<<8) + ov5640_read_reg(0x350b, &temp); |
| |
| return gain16; |
| } |
| |
| static int OV5640_set_gain16(int gain16) |
| { |
| /* write gain, 16 = 1x */ |
| u8 temp; |
| gain16 = gain16 & 0x3ff; |
| |
| temp = gain16 & 0xff; |
| ov5640_write_reg(0x350b, temp); |
| |
| temp = gain16>>8; |
| ov5640_write_reg(0x350a, temp); |
| |
| return 0; |
| } |
| |
| static int OV5640_get_light_freq(void) |
| { |
| /* get banding filter value */ |
| int temp, temp1, light_freq = 0; |
| u8 tmp; |
| |
| temp = ov5640_read_reg(0x3c01, &tmp); |
| |
| if (temp & 0x80) { |
| /* manual */ |
| temp1 = ov5640_read_reg(0x3c00, &tmp); |
| if (temp1 & 0x04) { |
| /* 50Hz */ |
| light_freq = 50; |
| } else { |
| /* 60Hz */ |
| light_freq = 60; |
| } |
| } else { |
| /* auto */ |
| temp1 = ov5640_read_reg(0x3c0c, &tmp); |
| if (temp1 & 0x01) { |
| /* 50Hz */ |
| light_freq = 50; |
| } else { |
| /* 60Hz */ |
| } |
| } |
| return light_freq; |
| } |
| |
| static void OV5640_set_bandingfilter(void) |
| { |
| int prev_VTS; |
| int band_step60, max_band60, band_step50, max_band50; |
| |
| /* read preview PCLK */ |
| prev_sysclk = OV5640_get_sysclk(); |
| /* read preview HTS */ |
| prev_HTS = OV5640_get_HTS(); |
| |
| /* read preview VTS */ |
| prev_VTS = OV5640_get_VTS(); |
| |
| /* calculate banding filter */ |
| /* 60Hz */ |
| band_step60 = prev_sysclk * 100/prev_HTS * 100/120; |
| ov5640_write_reg(0x3a0a, (band_step60 >> 8)); |
| ov5640_write_reg(0x3a0b, (band_step60 & 0xff)); |
| |
| max_band60 = (int)((prev_VTS-4)/band_step60); |
| ov5640_write_reg(0x3a0d, max_band60); |
| |
| /* 50Hz */ |
| band_step50 = prev_sysclk * 100/prev_HTS; |
| ov5640_write_reg(0x3a08, (band_step50 >> 8)); |
| ov5640_write_reg(0x3a09, (band_step50 & 0xff)); |
| |
| max_band50 = (int)((prev_VTS-4)/band_step50); |
| ov5640_write_reg(0x3a0e, max_band50); |
| } |
| |
| static int OV5640_set_AE_target(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(0x3a0f, AE_high); |
| ov5640_write_reg(0x3a10, AE_low); |
| ov5640_write_reg(0x3a1b, AE_high); |
| ov5640_write_reg(0x3a1e, AE_low); |
| ov5640_write_reg(0x3a11, fast_high); |
| ov5640_write_reg(0x3a1f, fast_low); |
| |
| return 0; |
| } |
| |
| static void OV5640_turn_on_AE_AG(int enable) |
| { |
| u8 ae_ag_ctrl; |
| |
| ov5640_read_reg(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(0x3503, ae_ag_ctrl); |
| } |
| |
| static bool binning_on(void) |
| { |
| u8 temp; |
| ov5640_read_reg(0x3821, &temp); |
| temp &= 0xfe; |
| if (temp) |
| return true; |
| else |
| return false; |
| } |
| |
| static void ov5640_set_virtual_channel(int channel) |
| { |
| u8 channel_id; |
| |
| ov5640_read_reg(0x4814, &channel_id); |
| channel_id &= ~(3 << 6); |
| ov5640_write_reg(0x4814, channel_id | (channel << 6)); |
| } |
| |
| /* download ov5640 settings to sensor through i2c */ |
| static int ov5640_download_firmware(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(RegAddr, &RegVal); |
| if (retval < 0) |
| goto err; |
| |
| RegVal &= ~(u8)Mask; |
| Val &= Mask; |
| Val |= RegVal; |
| } |
| |
| retval = ov5640_write_reg(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(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; |
| |
| ov5640_data.pix.width = |
| ov5640_mode_info_data[frame_rate][mode].width; |
| ov5640_data.pix.height = |
| ov5640_mode_info_data[frame_rate][mode].height; |
| |
| if (ov5640_data.pix.width == 0 || ov5640_data.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(0); |
| |
| /* read preview shutter */ |
| prev_shutter = OV5640_get_shutter(); |
| if ((binning_on()) && (mode != ov5640_mode_720P_1280_720) |
| && (mode != ov5640_mode_1080P_1920_1080)) |
| prev_shutter *= 2; |
| |
| /* read preview gain */ |
| prev_gain16 = OV5640_get_gain16(); |
| |
| /* get average */ |
| ov5640_read_reg(0x56a1, &average); |
| |
| /* turn off night mode for capture */ |
| OV5640_set_night_mode(); |
| |
| /* turn off overlay */ |
| /* ov5640_write_reg(0x3022, 0x06);//if no af function, just skip it */ |
| |
| OV5640_stream_off(); |
| |
| /* Write capture setting */ |
| retval = ov5640_download_firmware(pModeSetting, ArySize); |
| if (retval < 0) |
| goto err; |
| |
| /* read capture VTS */ |
| cap_VTS = OV5640_get_VTS(); |
| cap_HTS = OV5640_get_HTS(); |
| cap_sysclk = OV5640_get_sysclk(); |
| |
| /* calculate capture banding filter */ |
| light_freq = OV5640_get_light_freq(); |
| 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(cap_gain16); |
| |
| /* write capture shutter */ |
| if (cap_shutter > (cap_VTS - 4)) { |
| cap_VTS = cap_shutter + 4; |
| OV5640_set_VTS(cap_VTS); |
| } |
| OV5640_set_shutter(cap_shutter); |
| |
| err: |
| return retval; |
| } |
| |
| /* if sensor changes inside scaling or subsampling |
| * change mode directly |
| * */ |
| static int ov5640_change_mode_direct(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; |
| |
| ov5640_data.pix.width = |
| ov5640_mode_info_data[frame_rate][mode].width; |
| ov5640_data.pix.height = |
| ov5640_mode_info_data[frame_rate][mode].height; |
| |
| if (ov5640_data.pix.width == 0 || ov5640_data.pix.height == 0 || |
| pModeSetting == NULL || ArySize == 0) |
| return -EINVAL; |
| |
| /* turn off AE/AG */ |
| OV5640_turn_on_AE_AG(0); |
| |
| OV5640_stream_off(); |
| |
| /* Write capture setting */ |
| retval = ov5640_download_firmware(pModeSetting, ArySize); |
| if (retval < 0) |
| goto err; |
| |
| OV5640_turn_on_AE_AG(1); |
| |
| err: |
| return retval; |
| } |
| |
| static int ov5640_init_mode(enum ov5640_frame_rate frame_rate, |
| enum ov5640_mode mode, enum ov5640_mode orig_mode) |
| { |
| 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)) { |
| pr_err("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); |
| |
| ov5640_data.pix.width = 640; |
| ov5640_data.pix.height = 480; |
| retval = ov5640_download_firmware(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(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(frame_rate, mode); |
| } else { |
| /* change inside subsampling or scaling |
| * download firmware directly */ |
| retval = ov5640_change_mode_direct(frame_rate, mode); |
| } |
| |
| if (retval < 0) |
| goto err; |
| |
| OV5640_set_AE_target(AE_Target); |
| OV5640_get_light_freq(); |
| OV5640_set_bandingfilter(); |
| ov5640_set_virtual_channel(ov5640_data.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 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: |
| pr_debug(" 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 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 { |
| pr_err(" The camera frame rate is not supported!\n"); |
| return -EINVAL; |
| } |
| |
| orig_mode = sensor->streamcap.capturemode; |
| ret = ov5640_init_mode(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: |
| pr_debug(" type is not " \ |
| "V4L2_BUF_TYPE_VIDEO_CAPTURE but %d\n", |
| a->type); |
| ret = -EINVAL; |
| break; |
| |
| default: |
| pr_debug(" 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) { |
| ov5640_data.streamcap.capturemode = capturemode; |
| ov5640_data.pix.width = mf->width; |
| ov5640_data.pix.height = mf->height; |
| return 0; |
| } |
| |
| dev_err(&client->dev, "%s set fail\n", __func__); |
| 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 = ov5640_data.pix.width; |
| mf->height = ov5640_data.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) |
| { |
| 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) { |
| pr_warning("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(void) |
| { |
| u32 tgt_xclk; /* target xclk */ |
| u32 tgt_fps; /* target frames per secound */ |
| enum ov5640_frame_rate frame_rate; |
| int ret; |
| |
| ov5640_data.on = true; |
| |
| /* mclk */ |
| tgt_xclk = ov5640_data.mclk; |
| tgt_xclk = min(tgt_xclk, (u32)OV5640_XCLK_MAX); |
| tgt_xclk = max(tgt_xclk, (u32)OV5640_XCLK_MIN); |
| ov5640_data.mclk = tgt_xclk; |
| |
| pr_debug(" Setting mclk to %d MHz\n", tgt_xclk / 1000000); |
| |
| /* Default camera frame rate is set in probe */ |
| tgt_fps = ov5640_data.streamcap.timeperframe.denominator / |
| ov5640_data.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(frame_rate, ov5640_mode_INIT, ov5640_mode_INIT); |
| |
| return ret; |
| } |
| |
| static int ov5640_s_stream(struct v4l2_subdev *sd, int enable) |
| { |
| if (enable) |
| OV5640_stream_on(); |
| else |
| OV5640_stream_off(); |
| 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; |
| |
| /* ov5640 pinctrl */ |
| pinctrl = devm_pinctrl_get_select_default(dev); |
| if (IS_ERR(pinctrl)) |
| dev_warn(dev, "no pin available\n"); |
| |
| /* request power down pin */ |
| pwn_gpio = of_get_named_gpio(dev->of_node, "pwn-gpios", 0); |
| if (!gpio_is_valid(pwn_gpio)) |
| dev_warn(dev, "no sensor pwdn pin available"); |
| else { |
| retval = devm_gpio_request_one(dev, 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 */ |
| rst_gpio = of_get_named_gpio(dev->of_node, "rst-gpios", 0); |
| if (!gpio_is_valid(rst_gpio)) |
| dev_warn(dev, "no sensor reset pin available"); |
| else { |
| retval = devm_gpio_request_one(dev, rst_gpio, GPIOF_OUT_INIT_HIGH, |
| "ov5640_mipi_reset"); |
| if (retval < 0) { |
| dev_warn(dev, "Failed to set reset pin\n"); |
| return retval; |
| } |
| } |
| |
| /* Set initial values for the sensor struct. */ |
| memset(&ov5640_data, 0, sizeof(ov5640_data)); |
| ov5640_data.sensor_clk = devm_clk_get(dev, "csi_mclk"); |
| if (IS_ERR(ov5640_data.sensor_clk)) { |
| /* assuming clock enabled by default */ |
| ov5640_data.sensor_clk = NULL; |
| dev_err(dev, "clock-frequency missing or invalid\n"); |
| return PTR_ERR(ov5640_data.sensor_clk); |
| } |
| |
| retval = of_property_read_u32(dev->of_node, "mclk", |
| &(ov5640_data.mclk)); |
| if (retval) { |
| dev_err(dev, "mclk missing or invalid\n"); |
| return retval; |
| } |
| |
| if (ov5640_data.mclk == OV5640_XCLK_20MHZ) |
| ov5640_adjust_setting_20mhz(); |
| |
| retval = of_property_read_u32(dev->of_node, "mclk_source", |
| (u32 *) &(ov5640_data.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", |
| &(ov5640_data.csi)); |
| if (retval) { |
| dev_err(dev, "csi id missing or invalid\n"); |
| return retval; |
| } |
| |
| clk_prepare_enable(ov5640_data.sensor_clk); |
| |
| ov5640_data.io_init = ov5640_reset; |
| ov5640_data.i2c_client = client; |
| ov5640_data.pix.pixelformat = V4L2_PIX_FMT_YUYV; |
| ov5640_data.pix.width = 640; |
| ov5640_data.pix.height = 480; |
| ov5640_data.streamcap.capability = V4L2_MODE_HIGHQUALITY | |
| V4L2_CAP_TIMEPERFRAME; |
| ov5640_data.streamcap.capturemode = 0; |
| ov5640_data.streamcap.timeperframe.denominator = DEFAULT_FPS; |
| ov5640_data.streamcap.timeperframe.numerator = 1; |
| |
| ov5640_regulator_enable(&client->dev); |
| |
| ov5640_reset(); |
| |
| ov5640_power_down(0); |
| |
| retval = ov5640_read_reg(OV5640_CHIP_ID_HIGH_BYTE, &chip_id_high); |
| if (retval < 0 || chip_id_high != 0x56) { |
| pr_warning("camera ov5640_mipi is not found\n"); |
| clk_disable_unprepare(ov5640_data.sensor_clk); |
| return -ENODEV; |
| } |
| retval = ov5640_read_reg(OV5640_CHIP_ID_LOW_BYTE, &chip_id_low); |
| if (retval < 0 || chip_id_low != 0x40) { |
| pr_warning("camera ov5640_mipi is not found\n"); |
| clk_disable_unprepare(ov5640_data.sensor_clk); |
| return -ENODEV; |
| } |
| |
| retval = init_device(); |
| if (retval < 0) { |
| clk_disable_unprepare(ov5640_data.sensor_clk); |
| pr_warning("camera ov5640 init failed\n"); |
| ov5640_power_down(1); |
| return retval; |
| } |
| |
| v4l2_i2c_subdev_init(&ov5640_data.subdev, client, &ov5640_subdev_ops); |
| |
| ov5640_data.subdev.grp_id = 678; |
| retval = v4l2_async_register_subdev(&ov5640_data.subdev); |
| if (retval < 0) |
| dev_err(&client->dev, |
| "%s--Async register failed, ret=%d\n", __func__, retval); |
| |
| OV5640_stream_off(); |
| pr_info("camera ov5640_mipi 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); |
| |
| v4l2_async_unregister_subdev(sd); |
| |
| clk_disable_unprepare(ov5640_data.sensor_clk); |
| |
| ov5640_power_down(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"); |
