// SPDX-License-Identifier: GPL-2.0-or-later
/* * Driver for the OV5645 camera sensor. * * Copyright (c) 2011-2015, The Linux Foundation. All rights reserved. * Copyright (C) 2015 By Tech Design S.L. All Rights Reserved. * Copyright (C) 2012-2013 Freescale Semiconductor, Inc. All Rights Reserved. * * Based on: * - the OV5645 driver from QC msm-3.10 kernel on codeaurora.org: * https://us.codeaurora.org/cgit/quic/la/kernel/msm-3.10/tree/drivers/ * media/platform/msm/camera_v2/sensor/ov5645.c?h=LA.BR.1.2.4_rb1.41 * - the OV5640 driver posted on linux-media: * https://www.mail-archive.com/linux-media%40vger.kernel.org/msg92671.html
#include <linux/bitops.h>
#include <linux/clk.h>
#include <linux/delay.h>
#include <linux/device.h>
#include <linux/gpio/consumer.h>
#include <linux/i2c.h>
#include <linux/init.h>
#include <linux/module.h>
#include <linux/of.h>
#include <linux/of_graph.h>
#include <linux/pm_runtime.h>
#include <linux/regulator/consumer.h>
#include <linux/slab.h>
#include <linux/types.h>
#include <media/v4l2-ctrls.h>
#include <media/v4l2-fwnode.h>
#include <media/v4l2-subdev.h>
#define OV5645_SYSTEM_CTRL0
0 x3008
#define OV5645_SYSTEM_CTRL0_START
0 x02
#define OV5645_SYSTEM_CTRL0_STOP
0 x42
#define OV5645_CHIP_ID_HIGH
0 x300a
#define OV5645_CHIP_ID_HIGH_BYTE
0 x56
#define OV5645_CHIP_ID_LOW
0 x300b
#define OV5645_CHIP_ID_LOW_BYTE
0 x45
#define OV5645_IO_MIPI_CTRL00
0 x300e
#define OV5645_PAD_OUTPUT00
0 x3019
#define OV5645_AWB_MANUAL_CONTROL
0 x3406
#define OV5645_AWB_MANUAL_ENABLE BIT(
0 )
#define OV5645_AEC_PK_MANUAL
0 x3503
#define OV5645_AEC_MANUAL_ENABLE BIT(
0 )
#define OV5645_AGC_MANUAL_ENABLE BIT(
1 )
#define OV5645_TIMING_TC_REG20
0 x3820
#define OV5645_SENSOR_VFLIP BIT(
1 )
#define OV5645_ISP_VFLIP BIT(
2 )
#define OV5645_TIMING_TC_REG21
0 x3821
#define OV5645_SENSOR_MIRROR BIT(
1 )
#define OV5645_MIPI_CTRL00
0 x4800
#define OV5645_PRE_ISP_TEST_SETTING_1
0 x503d
#define OV5645_TEST_PATTERN_MASK
0 x3
#define OV5645_SET_TEST_PATTERN(x) ((x) & OV5645_TEST_PATTERN_MASK)
#define OV5645_TEST_PATTERN_ENABLE BIT(
7 )
#define OV5645_SDE_SAT_U
0 x5583
#define OV5645_SDE_SAT_V
0 x5584
/* regulator supplies */
static const char *
const ov5645_supply_name[] = {
"vdddo" ,
/* Digital I/O (1.8V) supply */
"vdda" ,
/* Analog (2.8V) supply */
"vddd" ,
/* Digital Core (1.5V) supply */
};
#define OV5645_NUM_SUPPLIES ARRAY_SIZE(ov5645_supply_name)
struct reg_value {
u16 reg;
u8 val;
};
struct ov5645_mode_info {
u32 width;
u32 height;
const struct reg_value *data;
u32 data_size;
u32 pixel_clock;
u32 link_freq;
};
struct ov5645 {
struct i2c_client *i2c_client;
struct device *dev;
struct v4l2_subdev sd;
struct media_pad pad;
struct v4l2_fwnode_endpoint ep;
struct v4l2_rect crop;
struct clk *xclk;
struct regulator_bulk_data supplies[OV5645_NUM_SUPPLIES];
const struct ov5645_mode_info *current_mode;
struct v4l2_ctrl_handler ctrls;
struct v4l2_ctrl *pixel_clock;
struct v4l2_ctrl *link_freq;
/* Cached register values */
u8 aec_pk_manual;
u8 timing_tc_reg20;
u8 timing_tc_reg21;
struct gpio_desc *enable_gpio;
struct gpio_desc *rst_gpio;
};
static inline struct ov5645 *to_ov5645(
struct v4l2_subdev *sd)
{
return container_of(sd,
struct ov5645, sd);
}
static const struct reg_value ov5645_global_init_setting[] = {
{
0 x3103,
0 x11 },
{
0 x3008,
0 x42 },
{
0 x3103,
0 x03 },
{
0 x3503,
0 x07 },
{
0 x3002,
0 x1c },
{
0 x3006,
0 xc3 },
{
0 x3017,
0 x00 },
{
0 x3018,
0 x00 },
{
0 x302e,
0 x0b },
{
0 x3037,
0 x13 },
{
0 x3108,
0 x01 },
{
0 x3611,
0 x06 },
{
0 x3500,
0 x00 },
{
0 x3501,
0 x01 },
{
0 x3502,
0 x00 },
{
0 x350a,
0 x00 },
{
0 x350b,
0 x3f },
{
0 x3620,
0 x33 },
{
0 x3621,
0 xe0 },
{
0 x3622,
0 x01 },
{
0 x3630,
0 x2e },
{
0 x3631,
0 x00 },
{
0 x3632,
0 x32 },
{
0 x3633,
0 x52 },
{
0 x3634,
0 x70 },
{
0 x3635,
0 x13 },
{
0 x3636,
0 x03 },
{
0 x3703,
0 x5a },
{
0 x3704,
0 xa0 },
{
0 x3705,
0 x1a },
{
0 x3709,
0 x12 },
{
0 x370b,
0 x61 },
{
0 x370f,
0 x10 },
{
0 x3715,
0 x78 },
{
0 x3717,
0 x01 },
{
0 x371b,
0 x20 },
{
0 x3731,
0 x12 },
{
0 x3901,
0 x0a },
{
0 x3905,
0 x02 },
{
0 x3906,
0 x10 },
{
0 x3719,
0 x86 },
{
0 x3810,
0 x00 },
{
0 x3811,
0 x10 },
{
0 x3812,
0 x00 },
{
0 x3821,
0 x01 },
{
0 x3824,
0 x01 },
{
0 x3826,
0 x03 },
{
0 x3828,
0 x08 },
{
0 x3a19,
0 xf8 },
{
0 x3c01,
0 x34 },
{
0 x3c04,
0 x28 },
{
0 x3c05,
0 x98 },
{
0 x3c07,
0 x07 },
{
0 x3c09,
0 xc2 },
{
0 x3c0a,
0 x9c },
{
0 x3c0b,
0 x40 },
{
0 x3c01,
0 x34 },
{
0 x4001,
0 x02 },
{
0 x4514,
0 x00 },
{
0 x4520,
0 xb0 },
{
0 x460b,
0 x37 },
{
0 x460c,
0 x20 },
{
0 x4818,
0 x01 },
{
0 x481d,
0 xf0 },
{
0 x481f,
0 x50 },
{
0 x4823,
0 x70 },
{
0 x4831,
0 x14 },
{
0 x5000,
0 xa7 },
{
0 x5001,
0 x83 },
{
0 x501d,
0 x00 },
{
0 x501f,
0 x00 },
{
0 x503d,
0 x00 },
{
0 x505c,
0 x30 },
{
0 x5181,
0 x59 },
{
0 x5183,
0 x00 },
{
0 x5191,
0 xf0 },
{
0 x5192,
0 x03 },
{
0 x5684,
0 x10 },
{
0 x5685,
0 xa0 },
{
0 x5686,
0 x0c },
{
0 x5687,
0 x78 },
{
0 x5a00,
0 x08 },
{
0 x5a21,
0 x00 },
{
0 x5a24,
0 x00 },
{
0 x3008,
0 x02 },
{
0 x3503,
0 x00 },
{
0 x5180,
0 xff },
{
0 x5181,
0 xf2 },
{
0 x5182,
0 x00 },
{
0 x5183,
0 x14 },
{
0 x5184,
0 x25 },
{
0 x5185,
0 x24 },
{
0 x5186,
0 x09 },
{
0 x5187,
0 x09 },
{
0 x5188,
0 x0a },
{
0 x5189,
0 x75 },
{
0 x518a,
0 x52 },
{
0 x518b,
0 xea },
{
0 x518c,
0 xa8 },
{
0 x518d,
0 x42 },
{
0 x518e,
0 x38 },
{
0 x518f,
0 x56 },
{
0 x5190,
0 x42 },
{
0 x5191,
0 xf8 },
{
0 x5192,
0 x04 },
{
0 x5193,
0 x70 },
{
0 x5194,
0 xf0 },
{
0 x5195,
0 xf0 },
{
0 x5196,
0 x03 },
{
0 x5197,
0 x01 },
{
0 x5198,
0 x04 },
{
0 x5199,
0 x12 },
{
0 x519a,
0 x04 },
{
0 x519b,
0 x00 },
{
0 x519c,
0 x06 },
{
0 x519d,
0 x82 },
{
0 x519e,
0 x38 },
{
0 x5381,
0 x1e },
{
0 x5382,
0 x5b },
{
0 x5383,
0 x08 },
{
0 x5384,
0 x0a },
{
0 x5385,
0 x7e },
{
0 x5386,
0 x88 },
{
0 x5387,
0 x7c },
{
0 x5388,
0 x6c },
{
0 x5389,
0 x10 },
{
0 x538a,
0 x01 },
{
0 x538b,
0 x98 },
{
0 x5300,
0 x08 },
{
0 x5301,
0 x30 },
{
0 x5302,
0 x10 },
{
0 x5303,
0 x00 },
{
0 x5304,
0 x08 },
{
0 x5305,
0 x30 },
{
0 x5306,
0 x08 },
{
0 x5307,
0 x16 },
{
0 x5309,
0 x08 },
{
0 x530a,
0 x30 },
{
0 x530b,
0 x04 },
{
0 x530c,
0 x06 },
{
0 x5480,
0 x01 },
{
0 x5481,
0 x08 },
{
0 x5482,
0 x14 },
{
0 x5483,
0 x28 },
{
0 x5484,
0 x51 },
{
0 x5485,
0 x65 },
{
0 x5486,
0 x71 },
{
0 x5487,
0 x7d },
{
0 x5488,
0 x87 },
{
0 x5489,
0 x91 },
{
0 x548a,
0 x9a },
{
0 x548b,
0 xaa },
{
0 x548c,
0 xb8 },
{
0 x548d,
0 xcd },
{
0 x548e,
0 xdd },
{
0 x548f,
0 xea },
{
0 x5490,
0 x1d },
{
0 x5580,
0 x02 },
{
0 x5583,
0 x40 },
{
0 x5584,
0 x10 },
{
0 x5589,
0 x10 },
{
0 x558a,
0 x00 },
{
0 x558b,
0 xf8 },
{
0 x5800,
0 x3f },
{
0 x5801,
0 x16 },
{
0 x5802,
0 x0e },
{
0 x5803,
0 x0d },
{
0 x5804,
0 x17 },
{
0 x5805,
0 x3f },
{
0 x5806,
0 x0b },
{
0 x5807,
0 x06 },
{
0 x5808,
0 x04 },
{
0 x5809,
0 x04 },
{
0 x580a,
0 x06 },
{
0 x580b,
0 x0b },
{
0 x580c,
0 x09 },
{
0 x580d,
0 x03 },
{
0 x580e,
0 x00 },
{
0 x580f,
0 x00 },
{
0 x5810,
0 x03 },
{
0 x5811,
0 x08 },
{
0 x5812,
0 x0a },
{
0 x5813,
0 x03 },
{
0 x5814,
0 x00 },
{
0 x5815,
0 x00 },
{
0 x5816,
0 x04 },
{
0 x5817,
0 x09 },
{
0 x5818,
0 x0f },
{
0 x5819,
0 x08 },
{
0 x581a,
0 x06 },
{
0 x581b,
0 x06 },
{
0 x581c,
0 x08 },
{
0 x581d,
0 x0c },
{
0 x581e,
0 x3f },
{
0 x581f,
0 x1e },
{
0 x5820,
0 x12 },
{
0 x5821,
0 x13 },
{
0 x5822,
0 x21 },
{
0 x5823,
0 x3f },
{
0 x5824,
0 x68 },
{
0 x5825,
0 x28 },
{
0 x5826,
0 x2c },
{
0 x5827,
0 x28 },
{
0 x5828,
0 x08 },
{
0 x5829,
0 x48 },
{
0 x582a,
0 x64 },
{
0 x582b,
0 x62 },
{
0 x582c,
0 x64 },
{
0 x582d,
0 x28 },
{
0 x582e,
0 x46 },
{
0 x582f,
0 x62 },
{
0 x5830,
0 x60 },
{
0 x5831,
0 x62 },
{
0 x5832,
0 x26 },
{
0 x5833,
0 x48 },
{
0 x5834,
0 x66 },
{
0 x5835,
0 x44 },
{
0 x5836,
0 x64 },
{
0 x5837,
0 x28 },
{
0 x5838,
0 x66 },
{
0 x5839,
0 x48 },
{
0 x583a,
0 x2c },
{
0 x583b,
0 x28 },
{
0 x583c,
0 x26 },
{
0 x583d,
0 xae },
{
0 x5025,
0 x00 },
{
0 x3a0f,
0 x30 },
{
0 x3a10,
0 x28 },
{
0 x3a1b,
0 x30 },
{
0 x3a1e,
0 x26 },
{
0 x3a11,
0 x60 },
{
0 x3a1f,
0 x14 },
{
0 x0601,
0 x02 },
{
0 x3008,
0 x42 },
{
0 x3008,
0 x02 },
{ OV5645_IO_MIPI_CTRL00,
0 x40 },
{ OV5645_MIPI_CTRL00,
0 x24 },
{ OV5645_PAD_OUTPUT00,
0 x70 }
};
static const struct reg_value ov5645_setting_sxga[] = {
{
0 x3612,
0 xa9 },
{
0 x3614,
0 x50 },
{
0 x3618,
0 x00 },
{
0 x3034,
0 x18 },
{
0 x3035,
0 x21 },
{
0 x3036,
0 x70 },
{
0 x3600,
0 x09 },
{
0 x3601,
0 x43 },
{
0 x3708,
0 x66 },
{
0 x370c,
0 xc3 },
{
0 x3800,
0 x00 },
{
0 x3801,
0 x00 },
{
0 x3802,
0 x00 },
{
0 x3803,
0 x06 },
{
0 x3804,
0 x0a },
{
0 x3805,
0 x3f },
{
0 x3806,
0 x07 },
{
0 x3807,
0 x9d },
{
0 x3808,
0 x05 },
{
0 x3809,
0 x00 },
{
0 x380a,
0 x03 },
{
0 x380b,
0 xc0 },
{
0 x380c,
0 x07 },
{
0 x380d,
0 x68 },
{
0 x380e,
0 x03 },
{
0 x380f,
0 xd8 },
{
0 x3813,
0 x06 },
{
0 x3814,
0 x31 },
{
0 x3815,
0 x31 },
{
0 x3820,
0 x47 },
{
0 x3a02,
0 x03 },
{
0 x3a03,
0 xd8 },
{
0 x3a08,
0 x01 },
{
0 x3a09,
0 xf8 },
{
0 x3a0a,
0 x01 },
{
0 x3a0b,
0 xa4 },
{
0 x3a0e,
0 x02 },
{
0 x3a0d,
0 x02 },
{
0 x3a14,
0 x03 },
{
0 x3a15,
0 xd8 },
{
0 x3a18,
0 x00 },
{
0 x4004,
0 x02 },
{
0 x4005,
0 x18 },
{
0 x4300,
0 x32 },
{
0 x4202,
0 x00 }
};
static const struct reg_value ov5645_setting_1080p[] = {
{
0 x3612,
0 xab },
{
0 x3614,
0 x50 },
{
0 x3618,
0 x04 },
{
0 x3034,
0 x18 },
{
0 x3035,
0 x11 },
{
0 x3036,
0 x54 },
{
0 x3600,
0 x08 },
{
0 x3601,
0 x33 },
{
0 x3708,
0 x63 },
{
0 x370c,
0 xc0 },
{
0 x3800,
0 x01 },
{
0 x3801,
0 x50 },
{
0 x3802,
0 x01 },
{
0 x3803,
0 xb2 },
{
0 x3804,
0 x08 },
{
0 x3805,
0 xef },
{
0 x3806,
0 x05 },
{
0 x3807,
0 xf1 },
{
0 x3808,
0 x07 },
{
0 x3809,
0 x80 },
{
0 x380a,
0 x04 },
{
0 x380b,
0 x38 },
{
0 x380c,
0 x09 },
{
0 x380d,
0 xc4 },
{
0 x380e,
0 x04 },
{
0 x380f,
0 x60 },
{
0 x3813,
0 x04 },
{
0 x3814,
0 x11 },
{
0 x3815,
0 x11 },
{
0 x3820,
0 x47 },
{
0 x4514,
0 x88 },
{
0 x3a02,
0 x04 },
{
0 x3a03,
0 x60 },
{
0 x3a08,
0 x01 },
{
0 x3a09,
0 x50 },
{
0 x3a0a,
0 x01 },
{
0 x3a0b,
0 x18 },
{
0 x3a0e,
0 x03 },
{
0 x3a0d,
0 x04 },
{
0 x3a14,
0 x04 },
{
0 x3a15,
0 x60 },
{
0 x3a18,
0 x00 },
{
0 x4004,
0 x06 },
{
0 x4005,
0 x18 },
{
0 x4300,
0 x32 },
{
0 x4202,
0 x00 },
{
0 x4837,
0 x0b }
};
static const struct reg_value ov5645_setting_full[] = {
{
0 x3612,
0 xab },
{
0 x3614,
0 x50 },
{
0 x3618,
0 x04 },
{
0 x3034,
0 x18 },
{
0 x3035,
0 x11 },
{
0 x3036,
0 x54 },
{
0 x3600,
0 x08 },
{
0 x3601,
0 x33 },
{
0 x3708,
0 x63 },
{
0 x370c,
0 xc0 },
{
0 x3800,
0 x00 },
{
0 x3801,
0 x00 },
{
0 x3802,
0 x00 },
{
0 x3803,
0 x00 },
{
0 x3804,
0 x0a },
{
0 x3805,
0 x3f },
{
0 x3806,
0 x07 },
{
0 x3807,
0 x9f },
{
0 x3808,
0 x0a },
{
0 x3809,
0 x20 },
{
0 x380a,
0 x07 },
{
0 x380b,
0 x98 },
{
0 x380c,
0 x0b },
{
0 x380d,
0 x1c },
{
0 x380e,
0 x07 },
{
0 x380f,
0 xb0 },
{
0 x3813,
0 x06 },
{
0 x3814,
0 x11 },
{
0 x3815,
0 x11 },
{
0 x3820,
0 x47 },
{
0 x4514,
0 x88 },
{
0 x3a02,
0 x07 },
{
0 x3a03,
0 xb0 },
{
0 x3a08,
0 x01 },
{
0 x3a09,
0 x27 },
{
0 x3a0a,
0 x00 },
{
0 x3a0b,
0 xf6 },
{
0 x3a0e,
0 x06 },
{
0 x3a0d,
0 x08 },
{
0 x3a14,
0 x07 },
{
0 x3a15,
0 xb0 },
{
0 x3a18,
0 x01 },
{
0 x4004,
0 x06 },
{
0 x4005,
0 x18 },
{
0 x4300,
0 x32 },
{
0 x4837,
0 x0b },
{
0 x4202,
0 x00 }
};
static const s64 link_freq[] = {
224000000 ,
336000000
};
static const struct ov5645_mode_info ov5645_mode_info_data[] = {
{
.width =
1280 ,
.height =
960 ,
.data = ov5645_setting_sxga,
.data_size = ARRAY_SIZE(ov5645_setting_sxga),
.pixel_clock =
112000000 ,
.link_freq =
0 /* an index in link_freq[] */
},
{
.width =
1920 ,
.height =
1080 ,
.data = ov5645_setting_1080p,
.data_size = ARRAY_SIZE(ov5645_setting_1080p),
.pixel_clock =
168000000 ,
.link_freq =
1 /* an index in link_freq[] */
},
{
.width =
2592 ,
.height =
1944 ,
.data = ov5645_setting_full,
.data_size = ARRAY_SIZE(ov5645_setting_full),
.pixel_clock =
168000000 ,
.link_freq =
1 /* an index in link_freq[] */
},
};
static int ov5645_write_reg(
struct ov5645 *ov5645, u16 reg, u8 val)
{
u8 regbuf[
3 ];
int ret;
regbuf[
0 ] = reg >>
8 ;
regbuf[
1 ] = reg &
0 xff;
regbuf[
2 ] = val;
ret = i2c_master_send(ov5645->i2c_client, regbuf,
3 );
if (ret <
0 ) {
dev_err(ov5645->dev,
"%s: write reg error %d: reg=%x, val=%x\n" ,
__func__, ret, reg, val);
return ret;
}
return 0 ;
}
static int ov5645_read_reg(
struct ov5645 *ov5645, u16 reg, u8 *val)
{
u8 regbuf[
2 ];
int ret;
regbuf[
0 ] = reg >>
8 ;
regbuf[
1 ] = reg &
0 xff;
ret = i2c_master_send(ov5645->i2c_client, regbuf,
2 );
if (ret <
0 ) {
dev_err(ov5645->dev,
"%s: write reg error %d: reg=%x\n" ,
__func__, ret, reg);
return ret;
}
ret = i2c_master_recv(ov5645->i2c_client, val,
1 );
if (ret <
0 ) {
dev_err(ov5645->dev,
"%s: read reg error %d: reg=%x\n" ,
__func__, ret, reg);
return ret;
}
return 0 ;
}
static int ov5645_set_aec_mode(
struct ov5645 *ov5645, u32 mode)
{
u8 val = ov5645->aec_pk_manual;
int ret;
if (mode == V4L2_EXPOSURE_AUTO)
val &= ~OV5645_AEC_MANUAL_ENABLE;
else /* V4L2_EXPOSURE_MANUAL */
val |= OV5645_AEC_MANUAL_ENABLE;
ret = ov5645_write_reg(ov5645, OV5645_AEC_PK_MANUAL, val);
if (!ret)
ov5645->aec_pk_manual = val;
return ret;
}
static int ov5645_set_agc_mode(
struct ov5645 *ov5645, u32 enable)
{
u8 val = ov5645->aec_pk_manual;
int ret;
if (enable)
val &= ~OV5645_AGC_MANUAL_ENABLE;
else
val |= OV5645_AGC_MANUAL_ENABLE;
ret = ov5645_write_reg(ov5645, OV5645_AEC_PK_MANUAL, val);
if (!ret)
ov5645->aec_pk_manual = val;
return ret;
}
static int ov5645_set_register_array(
struct ov5645 *ov5645,
const struct reg_value *settings,
unsigned int num_settings)
{
unsigned int i;
int ret;
for (i =
0 ; i < num_settings; ++i, ++settings) {
ret = ov5645_write_reg(ov5645, settings->reg, settings->val);
if (ret <
0 )
return ret;
if (settings->reg == OV5645_SYSTEM_CTRL0 &&
settings->val == OV5645_SYSTEM_CTRL0_START)
usleep_range(
1000 ,
2000 );
}
return 0 ;
}
static void __ov5645_set_power_off(
struct device *dev)
{
struct v4l2_subdev *sd = dev_get_drvdata(dev);
struct ov5645 *ov5645 = to_ov5645(sd);
ov5645_write_reg(ov5645, OV5645_IO_MIPI_CTRL00,
0 x58);
gpiod_set_value_cansleep(ov5645->rst_gpio,
1 );
gpiod_set_value_cansleep(ov5645->enable_gpio,
0 );
regulator_bulk_disable(OV5645_NUM_SUPPLIES, ov5645->supplies);
}
static int ov5645_set_power_off(
struct device *dev)
{
struct v4l2_subdev *sd = dev_get_drvdata(dev);
struct ov5645 *ov5645 = to_ov5645(sd);
__ov5645_set_power_off(dev);
clk_disable_unprepare(ov5645->xclk);
return 0 ;
}
static int ov5645_set_power_on(
struct device *dev)
{
struct v4l2_subdev *sd = dev_get_drvdata(dev);
struct ov5645 *ov5645 = to_ov5645(sd);
int ret;
ret = regulator_bulk_enable(OV5645_NUM_SUPPLIES, ov5645->supplies);
if (ret <
0 )
return ret;
ret = clk_prepare_enable(ov5645->xclk);
if (ret <
0 ) {
dev_err(ov5645->dev,
"clk prepare enable failed\n" );
regulator_bulk_disable(OV5645_NUM_SUPPLIES, ov5645->supplies);
return ret;
}
usleep_range(
5000 ,
15000 );
gpiod_set_value_cansleep(ov5645->enable_gpio,
1 );
usleep_range(
1000 ,
2000 );
gpiod_set_value_cansleep(ov5645->rst_gpio,
0 );
msleep(
20 );
ret = ov5645_set_register_array(ov5645, ov5645_global_init_setting,
ARRAY_SIZE(ov5645_global_init_setting));
if (ret <
0 ) {
dev_err(ov5645->dev,
"could not set init registers\n" );
goto exit ;
}
usleep_range(
500 ,
1000 );
return 0 ;
exit :
__ov5645_set_power_off(dev);
clk_disable_unprepare(ov5645->xclk);
return ret;
}
static int ov5645_set_saturation(
struct ov5645 *ov5645, s32 value)
{
u32 reg_value = (value *
0 x10) +
0 x40;
int ret;
ret = ov5645_write_reg(ov5645, OV5645_SDE_SAT_U, reg_value);
if (ret <
0 )
return ret;
return ov5645_write_reg(ov5645, OV5645_SDE_SAT_V, reg_value);
}
static int ov5645_set_hflip(
struct ov5645 *ov5645, s32 value)
{
u8 val = ov5645->timing_tc_reg21;
int ret;
if (value ==
0 )
val &= ~(OV5645_SENSOR_MIRROR);
else
val |= (OV5645_SENSOR_MIRROR);
ret = ov5645_write_reg(ov5645, OV5645_TIMING_TC_REG21, val);
if (!ret)
ov5645->timing_tc_reg21 = val;
return ret;
}
static int ov5645_set_vflip(
struct ov5645 *ov5645, s32 value)
{
u8 val = ov5645->timing_tc_reg20;
int ret;
if (value ==
0 )
val |= (OV5645_SENSOR_VFLIP | OV5645_ISP_VFLIP);
else
val &= ~(OV5645_SENSOR_VFLIP | OV5645_ISP_VFLIP);
ret = ov5645_write_reg(ov5645, OV5645_TIMING_TC_REG20, val);
if (!ret)
ov5645->timing_tc_reg20 = val;
return ret;
}
static int ov5645_set_test_pattern(
struct ov5645 *ov5645, s32 value)
{
u8 val =
0 ;
if (value) {
val = OV5645_SET_TEST_PATTERN(value -
1 );
val |= OV5645_TEST_PATTERN_ENABLE;
}
return ov5645_write_reg(ov5645, OV5645_PRE_ISP_TEST_SETTING_1, val);
}
static const char *
const ov5645_test_pattern_menu[] = {
"Disabled" ,
"Vertical Color Bars" ,
"Pseudo-Random Data" ,
"Color Square" ,
"Black Image" ,
};
static int ov5645_set_awb(
struct ov5645 *ov5645, s32 enable_auto)
{
u8 val =
0 ;
if (!enable_auto)
val = OV5645_AWB_MANUAL_ENABLE;
return ov5645_write_reg(ov5645, OV5645_AWB_MANUAL_CONTROL, val);
}
static int ov5645_s_ctrl(
struct v4l2_ctrl *ctrl)
{
struct ov5645 *ov5645 = container_of(ctrl->handler,
struct ov5645, ctrls);
int ret;
if (!pm_runtime_get_if_in_use(ov5645->dev))
return 0 ;
switch (ctrl->id) {
case V4L2_CID_SATURATION:
ret = ov5645_set_saturation(ov5645, ctrl->val);
break ;
case V4L2_CID_AUTO_WHITE_BALANCE:
ret = ov5645_set_awb(ov5645, ctrl->val);
break ;
case V4L2_CID_AUTOGAIN:
ret = ov5645_set_agc_mode(ov5645, ctrl->val);
break ;
case V4L2_CID_EXPOSURE_AUTO:
ret = ov5645_set_aec_mode(ov5645, ctrl->val);
break ;
case V4L2_CID_TEST_PATTERN:
ret = ov5645_set_test_pattern(ov5645, ctrl->val);
break ;
case V4L2_CID_HFLIP:
ret = ov5645_set_hflip(ov5645, ctrl->val);
break ;
case V4L2_CID_VFLIP:
ret = ov5645_set_vflip(ov5645, ctrl->val);
break ;
default :
ret = -EINVAL;
break ;
}
pm_runtime_put_autosuspend(ov5645->dev);
return ret;
}
static const struct v4l2_ctrl_ops ov5645_ctrl_ops = {
.s_ctrl = ov5645_s_ctrl,
};
static int ov5645_enum_mbus_code(
struct v4l2_subdev *sd,
struct v4l2_subdev_state *sd_state,
struct v4l2_subdev_mbus_code_enum *code)
{
if (code->index >
0 )
return -EINVAL;
code->code = MEDIA_BUS_FMT_UYVY8_1X16;
return 0 ;
}
static int ov5645_enum_frame_size(
struct v4l2_subdev *subdev,
struct v4l2_subdev_state *sd_state,
struct v4l2_subdev_frame_size_enum *fse)
{
if (fse->code != MEDIA_BUS_FMT_UYVY8_1X16)
return -EINVAL;
if (fse->index >= ARRAY_SIZE(ov5645_mode_info_data))
return -EINVAL;
fse->min_width = ov5645_mode_info_data[fse->index].width;
fse->max_width = ov5645_mode_info_data[fse->index].width;
fse->min_height = ov5645_mode_info_data[fse->index].height;
fse->max_height = ov5645_mode_info_data[fse->index].height;
return 0 ;
}
static int ov5645_set_format(
struct v4l2_subdev *sd,
struct v4l2_subdev_state *sd_state,
struct v4l2_subdev_format *format)
{
struct ov5645 *ov5645 = to_ov5645(sd);
struct v4l2_mbus_framefmt *__format;
struct v4l2_rect *__crop;
const struct ov5645_mode_info *new_mode;
int ret;
__crop = v4l2_subdev_state_get_crop(sd_state,
0 );
new_mode = v4l2_find_nearest_size(ov5645_mode_info_data,
ARRAY_SIZE(ov5645_mode_info_data),
width, height, format->format.width,
format->format.height);
__crop->width = new_mode->width;
__crop->height = new_mode->height;
if (format->which == V4L2_SUBDEV_FORMAT_ACTIVE) {
ret = __v4l2_ctrl_s_ctrl_int64(ov5645->pixel_clock,
new_mode->pixel_clock);
if (ret <
0 )
return ret;
ret = __v4l2_ctrl_s_ctrl(ov5645->link_freq,
new_mode->link_freq);
if (ret <
0 )
return ret;
ov5645->current_mode = new_mode;
}
__format = v4l2_subdev_state_get_format(sd_state,
0 );
__format->width = __crop->width;
__format->height = __crop->height;
__format->code = MEDIA_BUS_FMT_UYVY8_1X16;
__format->field = V4L2_FIELD_NONE;
__format->colorspace = V4L2_COLORSPACE_SRGB;
format->format = *__format;
return 0 ;
}
static int ov5645_init_state(
struct v4l2_subdev *subdev,
struct v4l2_subdev_state *sd_state)
{
struct v4l2_subdev_format fmt = {
.which = V4L2_SUBDEV_FORMAT_TRY,
.pad =
0 ,
.format = {
.code = MEDIA_BUS_FMT_UYVY8_1X16,
.width = ov5645_mode_info_data[
1 ].width,
.height = ov5645_mode_info_data[
1 ].height,
},
};
ov5645_set_format(subdev, sd_state, &fmt);
return 0 ;
}
static int ov5645_get_selection(
struct v4l2_subdev *sd,
struct v4l2_subdev_state *sd_state,
struct v4l2_subdev_selection *sel)
{
if (sel->target != V4L2_SEL_TGT_CROP)
return -EINVAL;
sel->r = *v4l2_subdev_state_get_crop(sd_state,
0 );
return 0 ;
}
static int ov5645_enable_streams(
struct v4l2_subdev *sd,
struct v4l2_subdev_state *state, u32 pad,
u64 streams_mask)
{
struct ov5645 *ov5645 = to_ov5645(sd);
int ret;
ret = pm_runtime_resume_and_get(ov5645->dev);
if (ret <
0 )
return ret;
ret = ov5645_set_register_array(ov5645,
ov5645->current_mode->data,
ov5645->current_mode->data_size);
if (ret <
0 ) {
dev_err(ov5645->dev,
"could not set mode %dx%d\n" ,
ov5645->current_mode->width,
ov5645->current_mode->height);
goto err_rpm_put;
}
ret = __v4l2_ctrl_handler_setup(&ov5645->ctrls);
if (ret <
0 ) {
dev_err(ov5645->dev,
"could not sync v4l2 controls\n" );
goto err_rpm_put;
}
ret = ov5645_write_reg(ov5645, OV5645_IO_MIPI_CTRL00,
0 x45);
if (ret <
0 )
goto err_rpm_put;
ret = ov5645_write_reg(ov5645, OV5645_SYSTEM_CTRL0,
OV5645_SYSTEM_CTRL0_START);
if (ret <
0 )
goto err_rpm_put;
return 0 ;
err_rpm_put:
pm_runtime_put_sync(ov5645->dev);
return ret;
}
static int ov5645_disable_streams(
struct v4l2_subdev *sd,
struct v4l2_subdev_state *state, u32 pad,
u64 streams_mask)
{
struct ov5645 *ov5645 = to_ov5645(sd);
int ret;
ret = ov5645_write_reg(ov5645, OV5645_IO_MIPI_CTRL00,
0 x40);
if (ret <
0 )
goto rpm_put;
ret = ov5645_write_reg(ov5645, OV5645_SYSTEM_CTRL0,
OV5645_SYSTEM_CTRL0_STOP);
rpm_put:
pm_runtime_put_autosuspend(ov5645->dev);
return ret;
}
static const struct v4l2_subdev_video_ops ov5645_video_ops = {
.s_stream = v4l2_subdev_s_stream_helper,
};
static const struct v4l2_subdev_pad_ops ov5645_subdev_pad_ops = {
.enum_mbus_code = ov5645_enum_mbus_code,
.enum_frame_size = ov5645_enum_frame_size,
.get_fmt = v4l2_subdev_get_fmt,
.set_fmt = ov5645_set_format,
.get_selection = ov5645_get_selection,
.enable_streams = ov5645_enable_streams,
.disable_streams = ov5645_disable_streams,
};
static const struct v4l2_subdev_ops ov5645_subdev_ops = {
.video = &ov5645_video_ops,
.pad = &ov5645_subdev_pad_ops,
};
static const struct v4l2_subdev_internal_ops ov5645_internal_ops = {
.init_state = ov5645_init_state,
};
static int ov5645_probe(
struct i2c_client *client)
{
struct device *dev = &client->dev;
struct device_node *endpoint;
struct ov5645 *ov5645;
u8 chip_id_high, chip_id_low;
unsigned int i;
u32 xclk_freq;
int ret;
ov5645 = devm_kzalloc(dev,
sizeof (
struct ov5645), GFP_KERNEL);
if (!ov5645)
return -ENOMEM;
ov5645->i2c_client = client;
ov5645->dev = dev;
endpoint = of_graph_get_endpoint_by_regs(dev->of_node,
0 , -
1 );
if (!endpoint)
return dev_err_probe(dev, -EINVAL,
"endpoint node not found\n" );
ret = v4l2_fwnode_endpoint_parse(of_fwnode_handle(endpoint),
&ov5645->ep);
of_node_put(endpoint);
if (ret <
0 )
return dev_err_probe(dev, ret,
"parsing endpoint node failed\n" );
if (ov5645->ep.bus_type != V4L2_MBUS_CSI2_DPHY)
return dev_err_probe(dev, -EINVAL,
"invalid bus type, must be CSI2\n" );
/* get system clock (xclk) */
ov5645->xclk = devm_clk_get(dev, NULL);
if (IS_ERR(ov5645->xclk))
return dev_err_probe(dev, PTR_ERR(ov5645->xclk),
"could not get xclk" );
ret = of_property_read_u32(dev->of_node,
"clock-frequency" , &xclk_freq);
if (ret)
return dev_err_probe(dev, ret,
"could not get xclk frequency\n" );
/* external clock must be 24MHz, allow 1% tolerance */
if (xclk_freq <
23760000 || xclk_freq >
24240000 )
return dev_err_probe(dev, -EINVAL,
"unsupported xclk frequency %u\n" ,
xclk_freq);
ret = clk_set_rate(ov5645->xclk, xclk_freq);
if (ret)
return dev_err_probe(dev, ret,
"could not set xclk frequency\n" );
for (i =
0 ; i < OV5645_NUM_SUPPLIES; i++)
ov5645->supplies[i].supply = ov5645_supply_name[i];
ret = devm_regulator_bulk_get(dev, OV5645_NUM_SUPPLIES,
ov5645->supplies);
if (ret <
0 )
return ret;
ov5645->enable_gpio = devm_gpiod_get(dev,
"enable" , GPIOD_OUT_HIGH);
if (IS_ERR(ov5645->enable_gpio))
return dev_err_probe(dev, PTR_ERR(ov5645->enable_gpio),
"cannot get enable gpio\n" );
ov5645->rst_gpio = devm_gpiod_get(dev,
"reset" , GPIOD_OUT_HIGH);
if (IS_ERR(ov5645->rst_gpio))
return dev_err_probe(dev, PTR_ERR(ov5645->rst_gpio),
"cannot get reset gpio\n" );
v4l2_ctrl_handler_init(&ov5645->ctrls,
9 );
v4l2_ctrl_new_std(&ov5645->ctrls, &ov5645_ctrl_ops,
V4L2_CID_SATURATION, -
4 ,
4 ,
1 ,
0 );
v4l2_ctrl_new_std(&ov5645->ctrls, &ov5645_ctrl_ops,
V4L2_CID_HFLIP,
0 ,
1 ,
1 ,
0 );
v4l2_ctrl_new_std(&ov5645->ctrls, &ov5645_ctrl_ops,
V4L2_CID_VFLIP,
0 ,
1 ,
1 ,
0 );
v4l2_ctrl_new_std(&ov5645->ctrls, &ov5645_ctrl_ops,
V4L2_CID_AUTOGAIN,
0 ,
1 ,
1 ,
1 );
v4l2_ctrl_new_std(&ov5645->ctrls, &ov5645_ctrl_ops,
V4L2_CID_AUTO_WHITE_BALANCE,
0 ,
1 ,
1 ,
1 );
v4l2_ctrl_new_std_menu(&ov5645->ctrls, &ov5645_ctrl_ops,
V4L2_CID_EXPOSURE_AUTO, V4L2_EXPOSURE_MANUAL,
0 , V4L2_EXPOSURE_AUTO);
v4l2_ctrl_new_std_menu_items(&ov5645->ctrls, &ov5645_ctrl_ops,
V4L2_CID_TEST_PATTERN,
ARRAY_SIZE(ov5645_test_pattern_menu) -
1 ,
0 ,
0 , ov5645_test_pattern_menu);
ov5645->pixel_clock = v4l2_ctrl_new_std(&ov5645->ctrls,
&ov5645_ctrl_ops,
V4L2_CID_PIXEL_RATE,
1 , INT_MAX,
1 ,
1 );
ov5645->link_freq = v4l2_ctrl_new_int_menu(&ov5645->ctrls,
&ov5645_ctrl_ops,
V4L2_CID_LINK_FREQ,
ARRAY_SIZE(link_freq) -
1 ,
0 , link_freq);
if (ov5645->link_freq)
ov5645->link_freq->flags |= V4L2_CTRL_FLAG_READ_ONLY;
ov5645->sd.ctrl_handler = &ov5645->ctrls;
if (ov5645->ctrls.error) {
ret = ov5645->ctrls.error;
dev_err_probe(dev, ret,
"failed to add controls\n" );
goto free_ctrl;
}
v4l2_i2c_subdev_init(&ov5645->sd, client, &ov5645_subdev_ops);
ov5645->sd.internal_ops = &ov5645_internal_ops;
ov5645->sd.flags |= V4L2_SUBDEV_FL_HAS_DEVNODE;
ov5645->pad.flags = MEDIA_PAD_FL_SOURCE;
ov5645->sd.dev = dev;
ov5645->sd.entity.function = MEDIA_ENT_F_CAM_SENSOR;
ret = media_entity_pads_init(&ov5645->sd.entity,
1 , &ov5645->pad);
if (ret <
0 ) {
dev_err_probe(dev, ret,
"could not register media entity\n" );
goto free_ctrl;
}
ret = ov5645_set_power_on(dev);
if (ret)
goto free_entity;
ret = ov5645_read_reg(ov5645, OV5645_CHIP_ID_HIGH, &chip_id_high);
if (ret <
0 || chip_id_high != OV5645_CHIP_ID_HIGH_BYTE) {
ret = -ENODEV;
dev_err_probe(dev, ret,
"could not read ID high\n" );
goto power_down;
}
ret = ov5645_read_reg(ov5645, OV5645_CHIP_ID_LOW, &chip_id_low);
if (ret <
0 || chip_id_low != OV5645_CHIP_ID_LOW_BYTE) {
ret = -ENODEV;
dev_err_probe(dev, ret,
"could not read ID low\n" );
goto power_down;
}
dev_info(dev,
"OV5645 detected at address 0x%02x\n" , client->addr);
ret = ov5645_read_reg(ov5645, OV5645_AEC_PK_MANUAL,
&ov5645->aec_pk_manual);
if (ret <
0 ) {
ret = -ENODEV;
dev_err_probe(dev, ret,
"could not read AEC/AGC mode\n" );
goto power_down;
}
ret = ov5645_read_reg(ov5645, OV5645_TIMING_TC_REG20,
&ov5645->timing_tc_reg20);
if (ret <
0 ) {
ret = -ENODEV;
dev_err_probe(dev, ret,
"could not read vflip value\n" );
goto power_down;
}
ret = ov5645_read_reg(ov5645, OV5645_TIMING_TC_REG21,
&ov5645->timing_tc_reg21);
if (ret <
0 ) {
ret = -ENODEV;
dev_err_probe(dev, ret,
"could not read hflip value\n" );
goto power_down;
}
ov5645->sd.state_lock = ov5645->ctrls.lock;
ret = v4l2_subdev_init_finalize(&ov5645->sd);
if (ret <
0 ) {
dev_err_probe(dev, ret,
"subdev init error\n" );
goto power_down;
}
pm_runtime_set_active(dev);
pm_runtime_get_noresume(dev);
pm_runtime_enable(dev);
ret = v4l2_async_register_subdev_sensor(&ov5645->sd);
if (ret <
0 ) {
dev_err_probe(dev, ret,
"could not register v4l2 device\n" );
goto err_pm_runtime;
}
pm_runtime_set_autosuspend_delay(dev,
1000 );
pm_runtime_use_autosuspend(dev);
pm_runtime_put_autosuspend(dev);
return 0 ;
err_pm_runtime:
pm_runtime_disable(dev);
pm_runtime_put_noidle(dev);
v4l2_subdev_cleanup(&ov5645->sd);
power_down:
ov5645_set_power_off(dev);
free_entity:
media_entity_cleanup(&ov5645->sd.entity);
free_ctrl:
v4l2_ctrl_handler_free(&ov5645->ctrls);
return ret;
}
static void ov5645_remove(
struct i2c_client *client)
{
struct v4l2_subdev *sd = i2c_get_clientdata(client);
struct ov5645 *ov5645 = to_ov5645(sd);
v4l2_async_unregister_subdev(&ov5645->sd);
v4l2_subdev_cleanup(sd);
media_entity_cleanup(&ov5645->sd.entity);
v4l2_ctrl_handler_free(&ov5645->ctrls);
pm_runtime_disable(ov5645->dev);
if (!pm_runtime_status_suspended(ov5645->dev))
ov5645_set_power_off(ov5645->dev);
pm_runtime_set_suspended(ov5645->dev);
}
static const struct i2c_device_id ov5645_id[] = {
{
"ov5645" },
{}
};
MODULE_DEVICE_TABLE(i2c, ov5645_id);
static const struct of_device_id ov5645_of_match[] = {
{ .compatible =
"ovti,ov5645" },
{
/* sentinel */ }
};
MODULE_DEVICE_TABLE(of, ov5645_of_match);
static const struct dev_pm_ops ov5645_pm_ops = {
SET_RUNTIME_PM_OPS(ov5645_set_power_off, ov5645_set_power_on, NULL)
};
static struct i2c_driver ov5645_i2c_driver = {
.driver = {
.of_match_table = ov5645_of_match,
.name =
"ov5645" ,
.pm = &ov5645_pm_ops,
},
.probe = ov5645_probe,
.remove = ov5645_remove,
.id_table = ov5645_id,
};
module_i2c_driver(ov5645_i2c_driver);
MODULE_DESCRIPTION(
"Omnivision OV5645 Camera Driver" );
MODULE_AUTHOR(
"Todor Tomov <todor.tomov@linaro.org>" );
MODULE_LICENSE(
"GPL v2" );
Messung V0.5 in Prozent C=95 H=94 G=94
¤ Dauer der Verarbeitung: 0.15 Sekunden
(vorverarbeitet am 2026-06-08)
¤ *© Formatika GbR, Deutschland
