diff options
| -rw-r--r-- | drivers/media/video/Kconfig | 6 | ||||
| -rw-r--r-- | drivers/media/video/Makefile | 1 | ||||
| -rw-r--r-- | drivers/media/video/ov5642.c | 1011 | ||||
| -rw-r--r-- | include/media/v4l2-chip-ident.h | 1 |
4 files changed, 1019 insertions, 0 deletions
diff --git a/drivers/media/video/Kconfig b/drivers/media/video/Kconfig index 176ac49e9c73..f574dc012cad 100644 --- a/drivers/media/video/Kconfig +++ b/drivers/media/video/Kconfig @@ -848,6 +848,12 @@ config SOC_CAMERA_OV2640 help This is a ov2640 camera driver +config SOC_CAMERA_OV5642 + tristate "ov5642 camera support" + depends on SOC_CAMERA && I2C + help + This is a V4L2 camera driver for the OmniVision OV5642 sensor + config SOC_CAMERA_OV6650 tristate "ov6650 sensor support" depends on SOC_CAMERA && I2C diff --git a/drivers/media/video/Makefile b/drivers/media/video/Makefile index 6cca52a7e2dd..272390072aef 100644 --- a/drivers/media/video/Makefile +++ b/drivers/media/video/Makefile @@ -79,6 +79,7 @@ obj-$(CONFIG_SOC_CAMERA_MT9T031) += mt9t031.o obj-$(CONFIG_SOC_CAMERA_MT9T112) += mt9t112.o obj-$(CONFIG_SOC_CAMERA_MT9V022) += mt9v022.o obj-$(CONFIG_SOC_CAMERA_OV2640) += ov2640.o +obj-$(CONFIG_SOC_CAMERA_OV5642) += ov5642.o obj-$(CONFIG_SOC_CAMERA_OV6650) += ov6650.o obj-$(CONFIG_SOC_CAMERA_OV772X) += ov772x.o obj-$(CONFIG_SOC_CAMERA_OV9640) += ov9640.o diff --git a/drivers/media/video/ov5642.c b/drivers/media/video/ov5642.c new file mode 100644 index 000000000000..3cdae971dfa5 --- /dev/null +++ b/drivers/media/video/ov5642.c @@ -0,0 +1,1011 @@ +/* + * Driver for OV5642 CMOS Image Sensor from Omnivision + * + * Copyright (C) 2011, Bastian Hecht <hechtb@gmail.com> + * + * Based on Sony IMX074 Camera Driver + * Copyright (C) 2010, Guennadi Liakhovetski <g.liakhovetski@gmx.de> + * + * Based on Omnivision OV7670 Camera Driver + * Copyright (C) 2006-7 Jonathan Corbet <corbet@lwn.net> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + +#include <linux/delay.h> +#include <linux/i2c.h> +#include <linux/slab.h> +#include <linux/videodev2.h> + +#include <media/soc_camera.h> +#include <media/soc_mediabus.h> +#include <media/v4l2-chip-ident.h> +#include <media/v4l2-subdev.h> + +/* OV5642 registers */ +#define REG_CHIP_ID_HIGH 0x300a +#define REG_CHIP_ID_LOW 0x300b + +#define REG_WINDOW_START_X_HIGH 0x3800 +#define REG_WINDOW_START_X_LOW 0x3801 +#define REG_WINDOW_START_Y_HIGH 0x3802 +#define REG_WINDOW_START_Y_LOW 0x3803 +#define REG_WINDOW_WIDTH_HIGH 0x3804 +#define REG_WINDOW_WIDTH_LOW 0x3805 +#define REG_WINDOW_HEIGHT_HIGH 0x3806 +#define REG_WINDOW_HEIGHT_LOW 0x3807 +#define REG_OUT_WIDTH_HIGH 0x3808 +#define REG_OUT_WIDTH_LOW 0x3809 +#define REG_OUT_HEIGHT_HIGH 0x380a +#define REG_OUT_HEIGHT_LOW 0x380b +#define REG_OUT_TOTAL_WIDTH_HIGH 0x380c +#define REG_OUT_TOTAL_WIDTH_LOW 0x380d +#define REG_OUT_TOTAL_HEIGHT_HIGH 0x380e +#define REG_OUT_TOTAL_HEIGHT_LOW 0x380f + +/* + * define standard resolution. + * Works currently only for up to 720 lines + * eg. 320x240, 640x480, 800x600, 1280x720, 2048x720 + */ + +#define OV5642_WIDTH 1280 +#define OV5642_HEIGHT 720 +#define OV5642_TOTAL_WIDTH 3200 +#define OV5642_TOTAL_HEIGHT 2000 +#define OV5642_SENSOR_SIZE_X 2592 +#define OV5642_SENSOR_SIZE_Y 1944 + +struct regval_list { + u16 reg_num; + u8 value; +}; + +static struct regval_list ov5642_default_regs_init[] = { + { 0x3103, 0x93 }, + { 0x3008, 0x82 }, + { 0x3017, 0x7f }, + { 0x3018, 0xfc }, + { 0x3810, 0xc2 }, + { 0x3615, 0xf0 }, + { 0x3000, 0x0 }, + { 0x3001, 0x0 }, + { 0x3002, 0x0 }, + { 0x3003, 0x0 }, + { 0x3004, 0xff }, + { 0x3030, 0x2b }, + { 0x3011, 0x8 }, + { 0x3010, 0x10 }, + { 0x3604, 0x60 }, + { 0x3622, 0x60 }, + { 0x3621, 0x9 }, + { 0x3709, 0x0 }, + { 0x4000, 0x21 }, + { 0x401d, 0x22 }, + { 0x3600, 0x54 }, + { 0x3605, 0x4 }, + { 0x3606, 0x3f }, + { 0x3c01, 0x80 }, + { 0x300d, 0x22 }, + { 0x3623, 0x22 }, + { 0x5000, 0x4f }, + { 0x5020, 0x4 }, + { 0x5181, 0x79 }, + { 0x5182, 0x0 }, + { 0x5185, 0x22 }, + { 0x5197, 0x1 }, + { 0x5500, 0xa }, + { 0x5504, 0x0 }, + { 0x5505, 0x7f }, + { 0x5080, 0x8 }, + { 0x300e, 0x18 }, + { 0x4610, 0x0 }, + { 0x471d, 0x5 }, + { 0x4708, 0x6 }, + { 0x370c, 0xa0 }, + { 0x5687, 0x94 }, + { 0x501f, 0x0 }, + { 0x5000, 0x4f }, + { 0x5001, 0xcf }, + { 0x4300, 0x30 }, + { 0x4300, 0x30 }, + { 0x460b, 0x35 }, + { 0x471d, 0x0 }, + { 0x3002, 0xc }, + { 0x3002, 0x0 }, + { 0x4713, 0x3 }, + { 0x471c, 0x50 }, + { 0x4721, 0x2 }, + { 0x4402, 0x90 }, + { 0x460c, 0x22 }, + { 0x3815, 0x44 }, + { 0x3503, 0x7 }, + { 0x3501, 0x73 }, + { 0x3502, 0x80 }, + { 0x350b, 0x0 }, + { 0x3818, 0xc8 }, + { 0x3824, 0x11 }, + { 0x3a00, 0x78 }, + { 0x3a1a, 0x4 }, + { 0x3a13, 0x30 }, + { 0x3a18, 0x0 }, + { 0x3a19, 0x7c }, + { 0x3a08, 0x12 }, + { 0x3a09, 0xc0 }, + { 0x3a0a, 0xf }, + { 0x3a0b, 0xa0 }, + { 0x350c, 0x7 }, + { 0x350d, 0xd0 }, + { 0x3a0d, 0x8 }, + { 0x3a0e, 0x6 }, + { 0x3500, 0x0 }, + { 0x3501, 0x0 }, + { 0x3502, 0x0 }, + { 0x350a, 0x0 }, + { 0x350b, 0x0 }, + { 0x3503, 0x0 }, + { 0x3a0f, 0x3c }, + { 0x3a10, 0x32 }, + { 0x3a1b, 0x3c }, + { 0x3a1e, 0x32 }, + { 0x3a11, 0x80 }, + { 0x3a1f, 0x20 }, + { 0x3030, 0x2b }, + { 0x3a02, 0x0 }, + { 0x3a03, 0x7d }, + { 0x3a04, 0x0 }, + { 0x3a14, 0x0 }, + { 0x3a15, 0x7d }, + { 0x3a16, 0x0 }, + { 0x3a00, 0x78 }, + { 0x3a08, 0x9 }, + { 0x3a09, 0x60 }, + { 0x3a0a, 0x7 }, + { 0x3a0b, 0xd0 }, + { 0x3a0d, 0x10 }, + { 0x3a0e, 0xd }, + { 0x4407, 0x4 }, + { 0x5193, 0x70 }, + { 0x589b, 0x0 }, + { 0x589a, 0xc0 }, + { 0x401e, 0x20 }, + { 0x4001, 0x42 }, + { 0x401c, 0x6 }, + { 0x3825, 0xac }, + { 0x3827, 0xc }, + { 0x528a, 0x1 }, + { 0x528b, 0x4 }, + { 0x528c, 0x8 }, + { 0x528d, 0x10 }, + { 0x528e, 0x20 }, + { 0x528f, 0x28 }, + { 0x5290, 0x30 }, + { 0x5292, 0x0 }, + { 0x5293, 0x1 }, + { 0x5294, 0x0 }, + { 0x5295, 0x4 }, + { 0x5296, 0x0 }, + { 0x5297, 0x8 }, + { 0x5298, 0x0 }, + { 0x5299, 0x10 }, + { 0x529a, 0x0 }, + { 0x529b, 0x20 }, + { 0x529c, 0x0 }, + { 0x529d, 0x28 }, + { 0x529e, 0x0 }, + { 0x529f, 0x30 }, + { 0x5282, 0x0 }, + { 0x5300, 0x0 }, + { 0x5301, 0x20 }, + { 0x5302, 0x0 }, + { 0x5303, 0x7c }, + { 0x530c, 0x0 }, + { 0x530d, 0xc }, + { 0x530e, 0x20 }, + { 0x530f, 0x80 }, + { 0x5310, 0x20 }, + { 0x5311, 0x80 }, + { 0x5308, 0x20 }, + { 0x5309, 0x40 }, + { 0x5304, 0x0 }, + { 0x5305, 0x30 }, + { 0x5306, 0x0 }, + { 0x5307, 0x80 }, + { 0x5314, 0x8 }, + { 0x5315, 0x20 }, + { 0x5319, 0x30 }, + { 0x5316, 0x10 }, + { 0x5317, 0x0 }, + { 0x5318, 0x2 }, + { 0x5380, 0x1 }, + { 0x5381, 0x0 }, + { 0x5382, 0x0 }, + { 0x5383, 0x4e }, + { 0x5384, 0x0 }, + { 0x5385, 0xf }, + { 0x5386, 0x0 }, + { 0x5387, 0x0 }, + { 0x5388, 0x1 }, + { 0x5389, 0x15 }, + { 0x538a, 0x0 }, + { 0x538b, 0x31 }, + { 0x538c, 0x0 }, + { 0x538d, 0x0 }, + { 0x538e, 0x0 }, + { 0x538f, 0xf }, + { 0x5390, 0x0 }, + { 0x5391, 0xab }, + { 0x5392, 0x0 }, + { 0x5393, 0xa2 }, + { 0x5394, 0x8 }, + { 0x5480, 0x14 }, + { 0x5481, 0x21 }, + { 0x5482, 0x36 }, + { 0x5483, 0x57 }, + { 0x5484, 0x65 }, + { 0x5485, 0x71 }, + { 0x5486, 0x7d }, + { 0x5487, 0x87 }, + { 0x5488, 0x91 }, + { 0x5489, 0x9a }, + { 0x548a, 0xaa }, + { 0x548b, 0xb8 }, + { 0x548c, 0xcd }, + { 0x548d, 0xdd }, + { 0x548e, 0xea }, + { 0x548f, 0x1d }, + { 0x5490, 0x5 }, + { 0x5491, 0x0 }, + { 0x5492, 0x4 }, + { 0x5493, 0x20 }, + { 0x5494, 0x3 }, + { 0x5495, 0x60 }, + { 0x5496, 0x2 }, + { 0x5497, 0xb8 }, + { 0x5498, 0x2 }, + { 0x5499, 0x86 }, + { 0x549a, 0x2 }, + { 0x549b, 0x5b }, + { 0x549c, 0x2 }, + { 0x549d, 0x3b }, + { 0x549e, 0x2 }, + { 0x549f, 0x1c }, + { 0x54a0, 0x2 }, + { 0x54a1, 0x4 }, + { 0x54a2, 0x1 }, + { 0x54a3, 0xed }, + { 0x54a4, 0x1 }, + { 0x54a5, 0xc5 }, + { 0x54a6, 0x1 }, + { 0x54a7, 0xa5 }, + { 0x54a8, 0x1 }, + { 0x54a9, 0x6c }, + { 0x54aa, 0x1 }, + { 0x54ab, 0x41 }, + { 0x54ac, 0x1 }, + { 0x54ad, 0x20 }, + { 0x54ae, 0x0 }, + { 0x54af, 0x16 }, + { 0x54b0, 0x1 }, + { 0x54b1, 0x20 }, + { 0x54b2, 0x0 }, + { 0x54b3, 0x10 }, + { 0x54b4, 0x0 }, + { 0x54b5, 0xf0 }, + { 0x54b6, 0x0 }, + { 0x54b7, 0xdf }, + { 0x5402, 0x3f }, + { 0x5403, 0x0 }, + { 0x3406, 0x0 }, + { 0x5180, 0xff }, + { 0x5181, 0x52 }, + { 0x5182, 0x11 }, + { 0x5183, 0x14 }, + { 0x5184, 0x25 }, + { 0x5185, 0x24 }, + { 0x5186, 0x6 }, + { 0x5187, 0x8 }, + { 0x5188, 0x8 }, + { 0x5189, 0x7c }, + { 0x518a, 0x60 }, + { 0x518b, 0xb2 }, + { 0x518c, 0xb2 }, + { 0x518d, 0x44 }, + { 0x518e, 0x3d }, + { 0x518f, 0x58 }, + { 0x5190, 0x46 }, + { 0x5191, 0xf8 }, + { 0x5192, 0x4 }, + { 0x5193, 0x70 }, + { 0x5194, 0xf0 }, + { 0x5195, 0xf0 }, + { 0x5196, 0x3 }, + { 0x5197, 0x1 }, + { 0x5198, 0x4 }, + { 0x5199, 0x12 }, + { 0x519a, 0x4 }, + { 0x519b, 0x0 }, + { 0x519c, 0x6 }, + { 0x519d, 0x82 }, + { 0x519e, 0x0 }, + { 0x5025, 0x80 }, + { 0x3a0f, 0x38 }, + { 0x3a10, 0x30 }, + { 0x3a1b, 0x3a }, + { 0x3a1e, 0x2e }, + { 0x3a11, 0x60 }, + { 0x3a1f, 0x10 }, + { 0x5688, 0xa6 }, + { 0x5689, 0x6a }, + { 0x568a, 0xea }, + { 0x568b, 0xae }, + { 0x568c, 0xa6 }, + { 0x568d, 0x6a }, + { 0x568e, 0x62 }, + { 0x568f, 0x26 }, + { 0x5583, 0x40 }, + { 0x5584, 0x40 }, + { 0x5580, 0x2 }, + { 0x5000, 0xcf }, + { 0x5800, 0x27 }, + { 0x5801, 0x19 }, + { 0x5802, 0x12 }, + { 0x5803, 0xf }, + { 0x5804, 0x10 }, + { 0x5805, 0x15 }, + { 0x5806, 0x1e }, + { 0x5807, 0x2f }, + { 0x5808, 0x15 }, + { 0x5809, 0xd }, + { 0x580a, 0xa }, + { 0x580b, 0x9 }, + { 0x580c, 0xa }, + { 0x580d, 0xc }, + { 0x580e, 0x12 }, + { 0x580f, 0x19 }, + { 0x5810, 0xb }, + { 0x5811, 0x7 }, + { 0x5812, 0x4 }, + { 0x5813, 0x3 }, + { 0x5814, 0x3 }, + { 0x5815, 0x6 }, + { 0x5816, 0xa }, + { 0x5817, 0xf }, + { 0x5818, 0xa }, + { 0x5819, 0x5 }, + { 0x581a, 0x1 }, + { 0x581b, 0x0 }, + { 0x581c, 0x0 }, + { 0x581d, 0x3 }, + { 0x581e, 0x8 }, + { 0x581f, 0xc }, + { 0x5820, 0xa }, + { 0x5821, 0x5 }, + { 0x5822, 0x1 }, + { 0x5823, 0x0 }, + { 0x5824, 0x0 }, + { 0x5825, 0x3 }, + { 0x5826, 0x8 }, + { 0x5827, 0xc }, + { 0x5828, 0xe }, + { 0x5829, 0x8 }, + { 0x582a, 0x6 }, + { 0x582b, 0x4 }, + { 0x582c, 0x5 }, + { 0x582d, 0x7 }, + { 0x582e, 0xb }, + { 0x582f, 0x12 }, + { 0x5830, 0x18 }, + { 0x5831, 0x10 }, + { 0x5832, 0xc }, + { 0x5833, 0xa }, + { 0x5834, 0xb }, + { 0x5835, 0xe }, + { 0x5836, 0x15 }, + { 0x5837, 0x19 }, + { 0x5838, 0x32 }, + { 0x5839, 0x1f }, + { 0x583a, 0x18 }, + { 0x583b, 0x16 }, + { 0x583c, 0x17 }, + { 0x583d, 0x1e }, + { 0x583e, 0x26 }, + { 0x583f, 0x53 }, + { 0x5840, 0x10 }, + { 0x5841, 0xf }, + { 0x5842, 0xd }, + { 0x5843, 0xc }, + { 0x5844, 0xe }, + { 0x5845, 0x9 }, + { 0x5846, 0x11 }, + { 0x5847, 0x10 }, + { 0x5848, 0x10 }, + { 0x5849, 0x10 }, + { 0x584a, 0x10 }, + { 0x584b, 0xe }, + { 0x584c, 0x10 }, + { 0x584d, 0x10 }, + { 0x584e, 0x11 }, + { 0x584f, 0x10 }, + { 0x5850, 0xf }, + { 0x5851, 0xc }, + { 0x5852, 0xf }, + { 0x5853, 0x10 }, + { 0x5854, 0x10 }, + { 0x5855, 0xf }, + { 0x5856, 0xe }, + { 0x5857, 0xb }, + { 0x5858, 0x10 }, + { 0x5859, 0xd }, + { 0x585a, 0xd }, + { 0x585b, 0xc }, + { 0x585c, 0xc }, + { 0x585d, 0xc }, + { 0x585e, 0xb }, + { 0x585f, 0xc }, + { 0x5860, 0xc }, + { 0x5861, 0xc }, + { 0x5862, 0xd }, + { 0x5863, 0x8 }, + { 0x5864, 0x11 }, + { 0x5865, 0x18 }, + { 0x5866, 0x18 }, + { 0x5867, 0x19 }, + { 0x5868, 0x17 }, + { 0x5869, 0x19 }, + { 0x586a, 0x16 }, + { 0x586b, 0x13 }, + { 0x586c, 0x13 }, + { 0x586d, 0x12 }, + { 0x586e, 0x13 }, + { 0x586f, 0x16 }, + { 0x5870, 0x14 }, + { 0x5871, 0x12 }, + { 0x5872, 0x10 }, + { 0x5873, 0x11 }, + { 0x5874, 0x11 }, + { 0x5875, 0x16 }, + { 0x5876, 0x14 }, + { 0x5877, 0x11 }, + { 0x5878, 0x10 }, + { 0x5879, 0xf }, + { 0x587a, 0x10 }, + { 0x587b, 0x14 }, + { 0x587c, 0x13 }, + { 0x587d, 0x12 }, + { 0x587e, 0x11 }, + { 0x587f, 0x11 }, + { 0x5880, 0x12 }, + { 0x5881, 0x15 }, + { 0x5882, 0x14 }, + { 0x5883, 0x15 }, + { 0x5884, 0x15 }, + { 0x5885, 0x15 }, + { 0x5886, 0x13 }, + { 0x5887, 0x17 }, + { 0x3710, 0x10 }, + { 0x3632, 0x51 }, + { 0x3702, 0x10 }, + { 0x3703, 0xb2 }, + { 0x3704, 0x18 }, + { 0x370b, 0x40 }, + { 0x370d, 0x3 }, + { 0x3631, 0x1 }, + { 0x3632, 0x52 }, + { 0x3606, 0x24 }, + { 0x3620, 0x96 }, + { 0x5785, 0x7 }, + { 0x3a13, 0x30 }, + { 0x3600, 0x52 }, + { 0x3604, 0x48 }, + { 0x3606, 0x1b }, + { 0x370d, 0xb }, + { 0x370f, 0xc0 }, + { 0x3709, 0x1 }, + { 0x3823, 0x0 }, + { 0x5007, 0x0 }, + { 0x5009, 0x0 }, + { 0x5011, 0x0 }, + { 0x5013, 0x0 }, + { 0x519e, 0x0 }, + { 0x5086, 0x0 }, + { 0x5087, 0x0 }, + { 0x5088, 0x0 }, + { 0x5089, 0x0 }, + { 0x302b, 0x0 }, + { 0x3503, 0x7 }, + { 0x3011, 0x8 }, + { 0x350c, 0x2 }, + { 0x350d, 0xe4 }, + { 0x3621, 0xc9 }, + { 0x370a, 0x81 }, + { 0xffff, 0xff }, +}; + +static struct regval_list ov5642_default_regs_finalise[] = { + { 0x3810, 0xc2 }, + { 0x3818, 0xc9 }, + { 0x381c, 0x10 }, + { 0x381d, 0xa0 }, + { 0x381e, 0x5 }, + { 0x381f, 0xb0 }, + { 0x3820, 0x0 }, + { 0x3821, 0x0 }, + { 0x3824, 0x11 }, + { 0x3a08, 0x1b }, + { 0x3a09, 0xc0 }, + { 0x3a0a, 0x17 }, + { 0x3a0b, 0x20 }, + { 0x3a0d, 0x2 }, + { 0x3a0e, 0x1 }, + { 0x401c, 0x4 }, + { 0x5682, 0x5 }, + { 0x5683, 0x0 }, + { 0x5686, 0x2 }, + { 0x5687, 0xcc }, + { 0x5001, 0x4f }, + { 0x589b, 0x6 }, + { 0x589a, 0xc5 }, + { 0x3503, 0x0 }, + { 0x460c, 0x20 }, + { 0x460b, 0x37 }, + { 0x471c, 0xd0 }, + { 0x471d, 0x5 }, + { 0x3815, 0x1 }, + { 0x3818, 0xc1 }, + { 0x501f, 0x0 }, + { 0x5002, 0xe0 }, + { 0x4300, 0x32 }, /* UYVY */ + { 0x3002, 0x1c }, + { 0x4800, 0x14 }, + { 0x4801, 0xf }, + { 0x3007, 0x3b }, + { 0x300e, 0x4 }, + { 0x4803, 0x50 }, + { 0x3815, 0x1 }, + { 0x4713, 0x2 }, + { 0x4842, 0x1 }, + { 0x300f, 0xe }, + { 0x3003, 0x3 }, + { 0x3003, 0x1 }, + { 0xffff, 0xff }, +}; + +struct ov5642_datafmt { + enum v4l2_mbus_pixelcode code; + enum v4l2_colorspace colorspace; +}; + +struct ov5642 { + struct v4l2_subdev subdev; + const struct ov5642_datafmt *fmt; +}; + +static const struct ov5642_datafmt ov5642_colour_fmts[] = { + {V4L2_MBUS_FMT_UYVY8_2X8, V4L2_COLORSPACE_JPEG}, +}; + +static struct ov5642 *to_ov5642(const struct i2c_client *client) +{ + return container_of(i2c_get_clientdata(client), struct ov5642, subdev); +} + +/* Find a data format by a pixel code in an array */ +static const struct ov5642_datafmt + *ov5642_find_datafmt(enum v4l2_mbus_pixelcode code) +{ + int i; + + for (i = 0; i < ARRAY_SIZE(ov5642_colour_fmts); i++) + if (ov5642_colour_fmts[i].code == code) + return ov5642_colour_fmts + i; + + return NULL; +} + +static int reg_read(struct i2c_client *client, u16 reg, u8 *val) +{ + int ret; + /* We have 16-bit i2c addresses - care for endianess */ + unsigned char data[2] = { reg >> 8, reg & 0xff }; + + ret = i2c_master_send(client, data, 2); + if (ret < 2) { + dev_err(&client->dev, "%s: i2c read error, reg: %x\n", + __func__, reg); + return ret < 0 ? ret : -EIO; + } + + ret = i2c_master_recv(client, val, 1); + if (ret < 1) { + dev_err(&client->dev, "%s: i2c read error, reg: %x\n", + __func__, reg); + return ret < 0 ? ret : -EIO; + } + return 0; +} + +static int reg_write(struct i2c_client *client, u16 reg, u8 val) +{ + int ret; + unsigned char data[3] = { reg >> 8, reg & 0xff, val }; + + ret = i2c_master_send(client, data, 3); + if (ret < 3) { + dev_err(&client->dev, "%s: i2c write error, reg: %x\n", + __func__, reg); + return ret < 0 ? ret : -EIO; + } + + return 0; +} +#ifdef CONFIG_VIDEO_ADV_DEBUG +static int ov5642_get_register(struct v4l2_subdev *sd, struct v4l2_dbg_register *reg) +{ + struct i2c_client *client = v4l2_get_subdevdata(sd); + int ret; + u8 val; + + if (reg->reg & ~0xffff) + return -EINVAL; + + reg->size = 1; + + ret = reg_read(client, reg->reg, &val); + if (!ret) + reg->val = (__u64)val; + + return ret; +} + +static int ov5642_set_register(struct v4l2_subdev *sd, struct v4l2_dbg_register *reg) +{ + struct i2c_client *client = v4l2_get_subdevdata(sd); + + if (reg->reg & ~0xffff || reg->val & ~0xff) + return -EINVAL; + + return reg_write(client, reg->reg, reg->val); +} +#endif + +static int ov5642_write_array(struct i2c_client *client, + struct regval_list *vals) +{ + while (vals->reg_num != 0xffff || vals->value != 0xff) { + int ret = reg_write(client, vals->reg_num, vals->value); + if (ret < 0) + return ret; + vals++; + } + dev_dbg(&client->dev, "Register list loaded\n"); + return 0; +} + +static int ov5642_set_resolution(struct i2c_client *client) +{ + int ret; + u8 start_x_high = ((OV5642_SENSOR_SIZE_X - OV5642_WIDTH) / 2) >> 8; + u8 start_x_low = ((OV5642_SENSOR_SIZE_X - OV5642_WIDTH) / 2) & 0xff; + u8 start_y_high = ((OV5642_SENSOR_SIZE_Y - OV5642_HEIGHT) / 2) >> 8; + u8 start_y_low = ((OV5642_SENSOR_SIZE_Y - OV5642_HEIGHT) / 2) & 0xff; + + u8 width_high = OV5642_WIDTH >> 8; + u8 width_low = OV5642_WIDTH & 0xff; + u8 height_high = OV5642_HEIGHT >> 8; + u8 height_low = OV5642_HEIGHT & 0xff; + + u8 total_width_high = OV5642_TOTAL_WIDTH >> 8; + u8 total_width_low = OV5642_TOTAL_WIDTH & 0xff; + u8 total_height_high = OV5642_TOTAL_HEIGHT >> 8; + u8 total_height_low = OV5642_TOTAL_HEIGHT & 0xff; + + ret = reg_write(client, REG_WINDOW_START_X_HIGH, start_x_high); + if (!ret) + ret = reg_write(client, REG_WINDOW_START_X_LOW, start_x_low); + if (!ret) + ret = reg_write(client, REG_WINDOW_START_Y_HIGH, start_y_high); + if (!ret) + ret = reg_write(client, REG_WINDOW_START_Y_LOW, start_y_low); + + if (!ret) + ret = reg_write(client, REG_WINDOW_WIDTH_HIGH, width_high); + if (!ret) + ret = reg_write(client, REG_WINDOW_WIDTH_LOW , width_low); + if (!ret) + ret = reg_write(client, REG_WINDOW_HEIGHT_HIGH, height_high); + if (!ret) + ret = reg_write(client, REG_WINDOW_HEIGHT_LOW, height_low); + + if (!ret) + ret = reg_write(client, REG_OUT_WIDTH_HIGH, width_high); + if (!ret) + ret = reg_write(client, REG_OUT_WIDTH_LOW , width_low); + if (!ret) + ret = reg_write(client, REG_OUT_HEIGHT_HIGH, height_high); + if (!ret) + ret = reg_write(client, REG_OUT_HEIGHT_LOW, height_low); + + if (!ret) + ret = reg_write(client, REG_OUT_TOTAL_WIDTH_HIGH, total_width_high); + if (!ret) + ret = reg_write(client, REG_OUT_TOTAL_WIDTH_LOW, total_width_low); + if (!ret) + ret = reg_write(client, REG_OUT_TOTAL_HEIGHT_HIGH, total_height_high); + if (!ret) + ret = reg_write(client, REG_OUT_TOTAL_HEIGHT_LOW, total_height_low); + + return ret; +} + +static int ov5642_try_fmt(struct v4l2_subdev *sd, + struct v4l2_mbus_framefmt *mf) +{ + const struct ov5642_datafmt *fmt = ov5642_find_datafmt(mf->code); + + dev_dbg(sd->v4l2_dev->dev, "%s(%u) width: %u heigth: %u\n", + __func__, mf->code, mf->width, mf->height); + + if (!fmt) { + mf->code = ov5642_colour_fmts[0].code; + mf->colorspace = ov5642_colour_fmts[0].colorspace; + } + + mf->width = OV5642_WIDTH; + mf->height = OV5642_HEIGHT; + mf->field = V4L2_FIELD_NONE; + + return 0; +} + +static int ov5642_s_fmt(struct v4l2_subdev *sd, + struct v4l2_mbus_framefmt *mf) +{ + struct i2c_client *client = v4l2_get_subdevdata(sd); + struct ov5642 *priv = to_ov5642(client); + + dev_dbg(sd->v4l2_dev->dev, "%s(%u)\n", __func__, mf->code); + + /* MIPI CSI could have changed the format, double-check */ + if (!ov5642_find_datafmt(mf->code)) + return -EINVAL; + + ov5642_try_fmt(sd, mf); + + priv->fmt = ov5642_find_datafmt(mf->code); + + ov5642_write_array(client, ov5642_default_regs_init); + ov5642_set_resolution(client); + ov5642_write_array(client, ov5642_default_regs_finalise); + + return 0; +} + +static int ov5642_g_fmt(struct v4l2_subdev *sd, + struct v4l2_mbus_framefmt *mf) +{ + struct i2c_client *client = v4l2_get_subdevdata(sd); + struct ov5642 *priv = to_ov5642(client); + + const struct ov5642_datafmt *fmt = priv->fmt; + + mf->code = fmt->code; + mf->colorspace = fmt->colorspace; + mf->width = OV5642_WIDTH; + mf->height = OV5642_HEIGHT; + mf->field = V4L2_FIELD_NONE; + + return 0; +} + +static int ov5642_enum_fmt(struct v4l2_subdev *sd, unsigned int index, + enum v4l2_mbus_pixelcode *code) +{ + if (index >= ARRAY_SIZE(ov5642_colour_fmts)) + return -EINVAL; + + *code = ov5642_colour_fmts[index].code; + return 0; +} + +static int ov5642_g_chip_ident(struct v4l2_subdev *sd, + struct v4l2_dbg_chip_ident *id) +{ + struct i2c_client *client = v4l2_get_subdevdata(sd); + + if (id->match.type != V4L2_CHIP_MATCH_I2C_ADDR) + return -EINVAL; + + if (id->match.addr != client->addr) + return -ENODEV; + + id->ident = V4L2_IDENT_OV5642; + id->revision = 0; + + return 0; +} + +static int ov5642_g_crop(struct v4l2_subdev *sd, struct v4l2_crop *a) +{ + struct v4l2_rect *rect = &a->c; + + a->type = V4L2_BUF_TYPE_VIDEO_CAPTURE; + rect->top = 0; + rect->left = 0; + rect->width = OV5642_WIDTH; + rect->height = OV5642_HEIGHT; + + return 0; +} + +static int ov5642_cropcap(struct v4l2_subdev *sd, struct v4l2_cropcap *a) +{ + a->bounds.left = 0; + a->bounds.top = 0; + a->bounds.width = OV5642_WIDTH; + a->bounds.height = OV5642_HEIGHT; + a->defrect = a->bounds; + a->type = V4L2_BUF_TYPE_VIDEO_CAPTURE; + a->pixelaspect.numerator = 1; + a->pixelaspect.denominator = 1; + + return 0; +} + +static struct v4l2_subdev_video_ops ov5642_subdev_video_ops = { + .s_mbus_fmt = ov5642_s_fmt, + .g_mbus_fmt = ov5642_g_fmt, + .try_mbus_fmt = ov5642_try_fmt, + .enum_mbus_fmt = ov5642_enum_fmt, + .g_crop = ov5642_g_crop, + .cropcap = ov5642_cropcap, +}; + +static struct v4l2_subdev_core_ops ov5642_subdev_core_ops = { + .g_chip_ident = ov5642_g_chip_ident, +#ifdef CONFIG_VIDEO_ADV_DEBUG + .g_register = ov5642_get_register, + .s_register = ov5642_set_register, +#endif +}; + +static struct v4l2_subdev_ops ov5642_subdev_ops = { + .core = &ov5642_subdev_core_ops, + .video = &ov5642_subdev_video_ops, +}; + +/* + * We have to provide soc-camera operations, but we don't have anything to say + * there. The MIPI CSI2 driver will provide .query_bus_param and .set_bus_param + */ +static unsigned long soc_ov5642_query_bus_param(struct soc_camera_device *icd) +{ + return 0; +} + +static int soc_ov5642_set_bus_param(struct soc_camera_device *icd, + unsigned long flags) +{ + return -EINVAL; +} + +static struct soc_camera_ops soc_ov5642_ops = { + .query_bus_param = soc_ov5642_query_bus_param, + .set_bus_param = soc_ov5642_set_bus_param, +}; + +static int ov5642_video_probe(struct soc_camera_device *icd, + struct i2c_client *client) +{ + int ret; + u8 id_high, id_low; + u16 id; + + /* Read sensor Model ID */ + ret = reg_read(client, REG_CHIP_ID_HIGH, &id_high); + if (ret < 0) + return ret; + + id = id_high << 8; + + ret = reg_read(client, REG_CHIP_ID_LOW, &id_low); + if (ret < 0) + return ret; + + id |= id_low; + + dev_info(&client->dev, "Chip ID 0x%04x detected\n", id); + + if (id != 0x5642) + return -ENODEV; + + return 0; +} + +static int ov5642_probe(struct i2c_client *client, + const struct i2c_device_id *did) +{ + struct ov5642 *priv; + struct soc_camera_device *icd = client->dev.platform_data; + struct soc_camera_link *icl; + int ret; + + if (!icd) { + dev_err(&client->dev, "OV5642: missing soc-camera data!\n"); + return -EINVAL; + } + + icl = to_soc_camera_link(icd); + if (!icl) { + dev_err(&client->dev, "OV5642: missing platform data!\n"); + return -EINVAL; + } + + priv = kzalloc(sizeof(struct ov5642), GFP_KERNEL); + if (!priv) + return -ENOMEM; + + v4l2_i2c_subdev_init(&priv->subdev, client, &ov5642_subdev_ops); + + icd->ops = &soc_ov5642_ops; + priv->fmt = &ov5642_colour_fmts[0]; + + ret = ov5642_video_probe(icd, client); + if (ret < 0) + goto error; + + return 0; + +error: + icd->ops = NULL; + kfree(priv); + return ret; +} + +static int ov5642_remove(struct i2c_client *client) +{ + struct ov5642 *priv = to_ov5642(client); + struct soc_camera_device *icd = client->dev.platform_data; + struct soc_camera_link *icl = to_soc_camera_link(icd); + + icd->ops = NULL; + if (icl->free_bus) + icl->free_bus(icl); + kfree(priv); + + return 0; +} + +static const struct i2c_device_id ov5642_id[] = { + { "ov5642", 0 }, + { } +}; +MODULE_DEVICE_TABLE(i2c, ov5642_id); + +static struct i2c_driver ov5642_i2c_driver = { + .driver = { + .name = "ov5642", + }, + .probe = ov5642_probe, + .remove = ov5642_remove, + .id_table = ov5642_id, +}; + +static int __init ov5642_mod_init(void) +{ + return i2c_add_driver(&ov5642_i2c_driver); +} + +static void __exit ov5642_mod_exit(void) +{ + i2c_del_driver(&ov5642_i2c_driver); +} + +module_init(ov5642_mod_init); +module_exit(ov5642_mod_exit); + +MODULE_DESCRIPTION("Omnivision OV5642 Camera driver"); +MODULE_AUTHOR("Bastian Hecht <hechtb@gmail.com>"); +MODULE_LICENSE("GPL v2"); diff --git a/include/media/v4l2-chip-ident.h b/include/media/v4l2-chip-ident.h index 8717045e4aec..63fd9d3db296 100644 --- a/include/media/v4l2-chip-ident.h +++ b/include/media/v4l2-chip-ident.h @@ -76,6 +76,7 @@ enum { V4L2_IDENT_OV6650 = 258, V4L2_IDENT_OV2640 = 259, V4L2_IDENT_OV9740 = 260, + V4L2_IDENT_OV5642 = 261, /* module saa7146: reserved range 300-309 */ V4L2_IDENT_SAA7146 = 300, |