// 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=99 H=90 G=94
¤ Dauer der Verarbeitung: 0.17 Sekunden
(vorverarbeitet am 2026-10-01)
¤
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