diff options
Diffstat (limited to 'drivers/media/platform/mxc/capture/ov5640_mipi_v2.c')
| -rw-r--r-- | drivers/media/platform/mxc/capture/ov5640_mipi_v2.c | 1788 |
1 files changed, 1788 insertions, 0 deletions
diff --git a/drivers/media/platform/mxc/capture/ov5640_mipi_v2.c b/drivers/media/platform/mxc/capture/ov5640_mipi_v2.c new file mode 100644 index 000000000000..9e89d42608aa --- /dev/null +++ b/drivers/media/platform/mxc/capture/ov5640_mipi_v2.c @@ -0,0 +1,1788 @@ +/* + * 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 + +#define DEFAULT_SCCB_ID 0x78 + +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)(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] = {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}, + {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_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 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 = kmalloc(sizeof(*sensor), GFP_KERNEL); + /* Set initial values for the sensor struct. */ + memset(sensor, 0, sizeof(*sensor)); + + /* 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"); |