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nest-open-source / nest-learning-thermostat / 6.0 / linux-imx-4.9.88 / f8cc81dfff00c26ff85530a8a7c19533694b47b8 / . / drivers / media / platform / imx8 / ov5640_v3.c
blob: 16d6beafb915f29307d996123440047ac7f0c133 [file] [log] [blame]
/*
* Copyright (C) 2012-2015 Freescale Semiconductor, Inc. All Rights Reserved.
* Copyright 2018 NXP
*/
/*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#include <linux/clk.h>
#include <linux/delay.h>
#include <linux/device.h>
#include <linux/i2c.h>
#include <linux/init.h>
#include <linux/module.h>
#include <linux/of_device.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_CHIP_ID_HIGH_BYTE 0x300A
#define OV5640_CHIP_ID_LOW_BYTE 0x300B
#define OV5640_SENS_PAD_SOURCE 0
#define OV5640_SENS_PADS_NUM 1
enum ov5640_mode {
ov5640_mode_MIN = 0,
ov5640_mode_VGA_640_480 = 0,
ov5640_mode_QVGA_320_240 = 1,
ov5640_mode_480_272 = 2,
ov5640_mode_720P_1280_720 = 3,
ov5640_mode_1080P_1920_1080 = 4,
ov5640_mode_MAX = 4
};
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;
};
struct reg_value {
u16 u16RegAddr;
u8 u8Val;
u8 u8Mask;
u32 u32Delay_ms;
};
struct ov5640_mode_info {
enum ov5640_mode mode;
u32 width;
u32 height;
struct reg_value *init_data_ptr;
u32 init_data_size;
};
struct ov5640_pll_info {
enum ov5640_mode mode;
struct reg_value *init_data_ptr;
u32 init_data_size;
};
struct ov5640_hs_info {
u32 width;
u32 height;
u32 frame_rate;
u32 val;
};
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;
struct media_pad pads[OV5640_SENS_PADS_NUM];
bool on;
bool mipi_csi;
/* control settings */
int brightness;
int hue;
int contrast;
int saturation;
int red;
int green;
int blue;
int ae_mode;
u32 mclk;
u8 mclk_source;
struct clk *sensor_clk;
int csi;
void (*io_init)(void);
};
/*!
* Maintains the information on the current state of the sesor.
*/
static struct ov5640 ov5640_data;
static int pwn_gpio, rst_gpio;
static struct reg_value ov5640_init_parm[] = {
{0x3008, 0x42, 0, 0},
/* System setting.0*/
{0x3103, 0x03, 0, 0},
{0x3000, 0x00, 0, 0},
{0x3004, 0xff, 0, 0},
{0x3002, 0x1c, 0, 0},
{0x3006, 0xc3, 0, 0},
{0x302e, 0x08, 0, 0},
{0x3037, 0x13, 0, 0},
{0x3108, 0x01, 0, 0},
{0x3618, 0x00, 0, 0},
{0x3612, 0x29, 0, 0},
{0x3708, 0x64, 0, 0},
{0x3709, 0x52, 0, 0},
{0x370c, 0x03, 0, 0},
{0x3820, 0x41, 0, 0},
{0x3821, 0x07, 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, 0x7c, 0, 0},
{0x3635, 0x13, 0, 0},
{0x3636, 0x03, 0, 0},
{0x3634, 0x40, 0, 0},
{0x3622, 0x01, 0, 0},
{0x3c01, 0x00, 0, 0},
{0x3a00, 0x58, 0, 0},
{0x4001, 0x02, 0, 0},
{0x4004, 0x02, 0, 0},
{0x4005, 0x1a, 0, 0},
{0x5001, 0xa3, 0, 0},
/* AEC */
{0x3a0f, 0x30, 0, 0},
{0x3a10, 0x28, 0, 0},
{0x3a1b, 0x30, 0, 0},
{0x3a1e, 0x26, 0, 0},
{0x3a11, 0x60, 0, 0},
{0x3a1f, 0x14, 0, 0},
/* AWB */
{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},
/* Color Matrix */
{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},
/* sharp */
{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},
/* Gamma */
{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},
/* UV adjust. */
{0x5580, 0x02, 0, 0},
{0x5583, 0x40, 0, 0},
{0x5584, 0x10, 0, 0},
{0x5589, 0x10, 0, 0},
{0x558a, 0x00, 0, 0},
{0x558b, 0xf8, 0, 0},
/* Lens correction0 */
{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},
};
static struct reg_value ov5640_setting_VGA_640_480[] = {
{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}, {0x3814, 0x31, 0, 0},
{0x3815, 0x31, 0, 0},
};
static struct reg_value ov5640_setting_QVGA_320_240[] = {
{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, 0x01, 0, 0},
{0x3809, 0x40, 0, 0}, {0x380a, 0x00, 0, 0}, {0x380b, 0xf0, 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}, {0x3814, 0x31, 0, 0},
{0x3815, 0x31, 0, 0},
};
static struct reg_value ov5640_setting_480_272[] = {
{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, 0x01, 0, 0},
{0x3809, 0xE0, 0, 0}, {0x380a, 0x01, 0, 0}, {0x380b, 0x10, 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}, {0x3814, 0x31, 0, 0},
{0x3815, 0x31, 0, 0},
};
static struct reg_value ov5640_setting_720P_1280_720[] = {
{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}, {0x3814, 0x31, 0, 0},
{0x3815, 0x31, 0, 0},
};
static struct reg_value ov5640_setting_1080P_1920_1080[] = {
{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}, {0x3810, 0x00, 0, 0}, {0x3811, 0x10, 0, 0},
{0x3812, 0x00, 0, 0}, {0x3813, 0x04, 0, 0}, {0x3814, 0x11, 0, 0},
{0x3815, 0x11, 0, 0},
};
/* DVP */
static struct reg_value ov5640_pll_VGA_30fps_640_480[] = {
{0x3035, 0x11, 0, 0}, {0x3036, 0x46, 0, 0}, {0x460c, 0x22, 0, 0},
{0x3824, 0x02, 0, 0}, {0x4837, 0x22, 0, 0},
};
static struct reg_value ov5640_pll_VGA_15fps_640_480[] = {
{0x3035, 0x21, 0, 0}, {0x3036, 0x46, 0, 0}, {0x460c, 0x22, 0, 0},
{0x3824, 0x02, 0, 0}, {0x4837, 0x22, 0, 0},
};
static struct reg_value ov5640_pll_QVGA_30fps_320_240[] = {
{0x3035, 0x11, 0, 0}, {0x3036, 0x46, 0, 0}, {0x460c, 0x22, 0, 0},
{0x3824, 0x02, 0, 0}, {0x4837, 0x22, 0, 0},
};
static struct reg_value ov5640_pll_QVGA_15fps_320_240[] = {
{0x3035, 0x21, 0, 0}, {0x3036, 0x46, 0, 0}, {0x460c, 0x22, 0, 0},
{0x3824, 0x02, 0, 0}, {0x4837, 0x22, 0, 0},
};
static struct reg_value ov5640_pll_30fps_480_272[] = {
{0x3035, 0x21, 0, 0}, {0x3036, 0x69, 0, 0}, {0x460c, 0x20, 0, 0},
{0x3824, 0x04, 0, 0}, {0x4837, 0x16, 0, 0},
};
static struct reg_value ov5640_pll_15fps_480_272[] = {
{0x3035, 0x41, 0, 0}, {0x3036, 0x69, 0, 0}, {0x460c, 0x20, 0, 0},
{0x3824, 0x04, 0, 0}, {0x4837, 0x16, 0, 0},
};
static struct reg_value ov5640_pll_720P_30fps_1280_720[] = {
{0x3035, 0x21, 0, 0}, {0x3036, 0x69, 0, 0}, {0x460c, 0x20, 0, 0},
{0x3824, 0x04, 0, 0}, {0x4837, 0x16, 0, 0},
};
static struct reg_value ov5640_pll_720P_15fps_1280_720[] = {
{0x3035, 0x41, 0, 0}, {0x3036, 0x69, 0, 0}, {0x460c, 0x20, 0, 0},
{0x3824, 0x04, 0, 0}, {0x4837, 0x16, 0, 0},
};
static struct reg_value ov5640_pll_1080P_15fps_1920_1080[] = {
{0x3035, 0x21, 0, 0}, {0x3036, 0x69, 0, 0}, {0x460c, 0x20, 0, 0},
{0x3824, 0x04, 0, 0}, {0x4837, 0x16, 0, 0},
};
/* MIPI */
static struct reg_value ov5640_mipi_pll_VGA_30fps_640_480[] = {
{0x3035, 0x14, 0, 0}, {0x3036, 0x38, 0, 0}, {0x460c, 0x22, 0, 0},
{0x3824, 0x02, 0, 0}, {0x4837, 0x0a, 0, 0},
};
static struct reg_value ov5640_mipi_pll_VGA_15fps_640_480[] = {
{0x3035, 0x22, 0, 0}, {0x3036, 0x38, 0, 0}, {0x460c, 0x22, 0, 0},
{0x3824, 0x02, 0, 0}, {0x4837, 0x0a, 0, 0},
};
static struct reg_value ov5640_mipi_pll_QVGA_30fps_320_240[] = {
{0x3035, 0x14, 0, 0}, {0x3036, 0x38, 0, 0}, {0x460c, 0x22, 0, 0},
{0x3824, 0x02, 0, 0}, {0x4837, 0x22, 0, 0},
};
static struct reg_value ov5640_mipi_pll_QVGA_15fps_320_240[] = {
{0x3035, 0x22, 0, 0}, {0x3036, 0x38, 0, 0}, {0x460c, 0x22, 0, 0},
{0x3824, 0x02, 0, 0}, {0x4837, 0x0a, 0, 0},
};
static struct reg_value ov5640_mipi_pll_30fps_480_272[] = {
{0x3035, 0x21, 0, 0}, {0x3036, 0x69, 0, 0}, {0x460c, 0x20, 0, 0},
{0x3824, 0x04, 0, 0}, {0x4837, 0x16, 0, 0},
};
static struct reg_value ov5640_mipi_pll_15fps_480_272[] = {
{0x3035, 0x41, 0, 0}, {0x3036, 0x69, 0, 0}, {0x460c, 0x20, 0, 0},
{0x3824, 0x04, 0, 0}, {0x4837, 0x16, 0, 0},
};
static struct reg_value ov5640_mipi_pll_720P_30fps_1280_720[] = {
{0x3035, 0x21, 0, 0}, {0x3036, 0x54, 0, 0}, {0x460c, 0x20, 0, 0},
{0x3824, 0x04, 0, 0}, {0x4837, 0x0a, 0, 0},
};
static struct reg_value ov5640_mipi_pll_720P_15fps_1280_720[] = {
{0x3035, 0x41, 0, 0}, {0x3036, 0x54, 0, 0}, {0x460c, 0x20, 0, 0},
{0x3824, 0x04, 0, 0}, {0x4837, 0x0a, 0, 0},
};
static struct reg_value ov5640_mipi_pll_1080P_15fps_1920_1080[] = {
{0x3035, 0x21, 0, 0}, {0x3036, 0x54, 0, 0}, {0x460c, 0x20, 0, 0},
{0x3824, 0x04, 0, 0}, {0x4837, 0x0a, 0, 0},
};
static struct reg_value ov5640_config[] = {
{0x302C, 0xc2, 0, 0}, /* Driver Capability */
{0x4300, 0x31, 0, 0}, /* YUV422 YVYU */
{0x501f, 0x00, 0, 0}, /* YUV422 YVYU */
{0x3034, 0x1a, 0, 0}, /* Inerface 10bits mode */
{0x3017, 0xFF, 0, 0},
{0x3018, 0xFF, 0, 0},
{0x300e, 0x58, 0, 0}, /* DVP mode */
{0x4740, 0x23, 0, 0}, /* BIT5: Pixel BIT1: HSYNC BIT0: VSYNC
1: hight level
0: low level valid*/
{0x5000, 0xa7, 0, 0},
};
static struct reg_value ov5640_mipi_config[] = {
{0x302C, 0xc2, 0, 0}, /* Driver Capability */
{0x4300, 0x3F, 0, 0}, /* YUV422 YVYU */
{0x501f, 0x00, 0, 0}, /* YUV422 YVYU */
{0x3034, 0x18, 0, 0}, /* MIPI 8bits mode */
{0x3017, 0x00, 0, 0},
{0x3018, 0x00, 0, 0},
{0x300e, 0x45, 0, 0}, /* MIPI mode */
{0x4800, 0x04, 0, 0},
{0x4740, 0x23, 0, 0}, /* BIT5: Pixel BIT1: HSYNC BIT0: VSYNC
1: hight level
0: low level valid*/
{0x5000, 0xa7, 0, 0},
};
static struct ov5640_hs_info hs_setting[] = {
{1920, 1080, 30, 0x0B},
{1920, 1080, 15, 0x10},
{1280, 720, 30, 0x11},
{1280, 720, 15, 0x16},
{640, 480, 30, 0x1E},
{640, 480, 15, 0x23},
{320, 240, 30, 0x1E},
{320, 240, 15, 0x23},
};
static struct ov5640_mode_info ov5640_mode_info_data[ov5640_mode_MAX + 1] = {
{ov5640_mode_VGA_640_480, 640, 480, ov5640_setting_VGA_640_480,
ARRAY_SIZE(ov5640_setting_VGA_640_480)},
{ov5640_mode_QVGA_320_240, 320, 240, ov5640_setting_QVGA_320_240,
ARRAY_SIZE(ov5640_setting_QVGA_320_240)},
{ov5640_mode_480_272, 480, 272, ov5640_setting_480_272,
ARRAY_SIZE(ov5640_setting_480_272)},
{ov5640_mode_720P_1280_720, 1280, 720, ov5640_setting_720P_1280_720,
ARRAY_SIZE(ov5640_setting_720P_1280_720)},
{ov5640_mode_1080P_1920_1080, 1920, 1080, ov5640_setting_1080P_1920_1080,
ARRAY_SIZE(ov5640_setting_1080P_1920_1080)},
};
static struct ov5640_pll_info ov5640_pll_info_data[2][ov5640_mode_MAX + 1] = {
{
{ov5640_mode_VGA_640_480, ov5640_pll_VGA_15fps_640_480,
ARRAY_SIZE(ov5640_pll_VGA_15fps_640_480)},
{ov5640_mode_QVGA_320_240, ov5640_pll_QVGA_15fps_320_240,
ARRAY_SIZE(ov5640_pll_QVGA_15fps_320_240)},
{ov5640_mode_480_272, ov5640_pll_15fps_480_272,
ARRAY_SIZE(ov5640_pll_15fps_480_272)},
{ov5640_mode_720P_1280_720, ov5640_pll_720P_15fps_1280_720,
ARRAY_SIZE(ov5640_pll_720P_15fps_1280_720)},
{ov5640_mode_1080P_1920_1080, ov5640_pll_1080P_15fps_1920_1080,
ARRAY_SIZE(ov5640_pll_1080P_15fps_1920_1080)},
},
{
{ov5640_mode_VGA_640_480, ov5640_pll_VGA_30fps_640_480,
ARRAY_SIZE(ov5640_pll_VGA_30fps_640_480)},
{ov5640_mode_QVGA_320_240, ov5640_pll_QVGA_30fps_320_240,
ARRAY_SIZE(ov5640_pll_QVGA_30fps_320_240)},
{ov5640_mode_480_272, ov5640_pll_30fps_480_272,
ARRAY_SIZE(ov5640_pll_30fps_480_272)},
{ov5640_mode_720P_1280_720, ov5640_pll_720P_30fps_1280_720,
ARRAY_SIZE(ov5640_pll_720P_30fps_1280_720)},
},
};
static struct ov5640_pll_info ov5640_mipi_pll_info_data[2][ov5640_mode_MAX + 1] = {
{
{ov5640_mode_VGA_640_480, ov5640_mipi_pll_VGA_15fps_640_480,
ARRAY_SIZE(ov5640_mipi_pll_VGA_15fps_640_480)},
{ov5640_mode_QVGA_320_240, ov5640_mipi_pll_QVGA_15fps_320_240,
ARRAY_SIZE(ov5640_mipi_pll_QVGA_15fps_320_240)},
{ov5640_mode_480_272, ov5640_mipi_pll_15fps_480_272,
ARRAY_SIZE(ov5640_mipi_pll_15fps_480_272)},
{ov5640_mode_720P_1280_720, ov5640_mipi_pll_720P_15fps_1280_720,
ARRAY_SIZE(ov5640_mipi_pll_720P_15fps_1280_720)},
{ov5640_mode_1080P_1920_1080, ov5640_mipi_pll_1080P_15fps_1920_1080,
ARRAY_SIZE(ov5640_mipi_pll_1080P_15fps_1920_1080)},
},
{
{ov5640_mode_VGA_640_480, ov5640_mipi_pll_VGA_30fps_640_480,
ARRAY_SIZE(ov5640_mipi_pll_VGA_30fps_640_480)},
{ov5640_mode_QVGA_320_240, ov5640_mipi_pll_QVGA_30fps_320_240,
ARRAY_SIZE(ov5640_mipi_pll_QVGA_30fps_320_240)},
{ov5640_mode_480_272, ov5640_mipi_pll_30fps_480_272,
ARRAY_SIZE(ov5640_mipi_pll_30fps_480_272)},
{ov5640_mode_720P_1280_720, ov5640_mipi_pll_720P_30fps_1280_720,
ARRAY_SIZE(ov5640_mipi_pll_720P_30fps_1280_720)},
},
};
static struct regulator *io_regulator;
static struct regulator *core_regulator;
static struct regulator *analog_regulator;
static int ov5640_probe(struct i2c_client *adapter,
const struct i2c_device_id *device_id);
static int ov5640_remove(struct i2c_client *client);
static s32 ov5640_read_reg(u16 reg, u8 *val);
static s32 ov5640_write_reg(u16 reg, u8 val);
static const struct i2c_device_id ov5640_id[] = {
{"ov5640_v3", 0},
{},
};
MODULE_DEVICE_TABLE(i2c, ov5640_id);
static struct i2c_driver ov5640_i2c_driver = {
.driver = {
.owner = THIS_MODULE,
.name = "ov5640_v3",
},
.probe = ov5640_probe,
.remove = ov5640_remove,
.id_table = ov5640_id,
};
static const struct ov5640_datafmt ov5640_colour_fmts[] = {
{MEDIA_BUS_FMT_YVYU8_2X8, V4L2_COLORSPACE_JPEG},
{MEDIA_BUS_FMT_UYVY8_2X8, V4L2_COLORSPACE_JPEG},
};
static struct ov5640 *to_ov5640(const struct i2c_client *client)
{
return container_of(i2c_get_clientdata(client), struct ov5640, subdev);
}
static uint16_t find_hs_configure(struct ov5640 *sensor)
{
struct device *dev = &sensor->i2c_client->dev;
struct v4l2_fract *timeperframe = &sensor->streamcap.timeperframe;
struct v4l2_pix_format *pix = &sensor->pix;
u32 frame_rate = timeperframe->denominator / timeperframe->numerator;
int i;
for (i = 0; i < ARRAY_SIZE(hs_setting); i++) {
if (hs_setting[i].width == pix->width &&
hs_setting[i].height == pix->height &&
hs_setting[i].frame_rate == frame_rate)
return hs_setting[i].val;
}
if (i == ARRAY_SIZE(hs_setting))
dev_err(dev, "%s can not find hs configure\n", __func__);
return -EINVAL;
}
/* Find a data format by a pixel code in an array */
static const struct ov5640_datafmt
*ov5640_find_datafmt(u32 code)
{
int i;
for (i = 0; i < ARRAY_SIZE(ov5640_colour_fmts); i++)
if (ov5640_colour_fmts[i].code == code)
return ov5640_colour_fmts + i;
return NULL;
}
static inline void ov5640_power_down(int enable)
{
gpio_set_value_cansleep(pwn_gpio, enable);
msleep(2);
}
static inline void ov5640_reset(void)
{
gpio_set_value_cansleep(pwn_gpio, 1);
gpio_set_value_cansleep(rst_gpio, 0);
msleep(5);
gpio_set_value_cansleep(pwn_gpio, 0);
msleep(1);
gpio_set_value_cansleep(rst_gpio, 1);
msleep(20);
}
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) {
dev_err(dev, "set io voltage failed\n");
return ret;
} else {
dev_dbg(dev, "set io voltage ok\n");
}
} else {
io_regulator = NULL;
dev_warn(dev, "cannot get io voltage\n");
}
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) {
dev_err(dev, "set core voltage failed\n");
return ret;
} else {
dev_dbg(dev, "set core voltage ok\n");
}
} else {
core_regulator = NULL;
dev_warn(dev, "cannot get core voltage\n");
}
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) {
dev_err(dev, "set analog voltage failed\n");
return ret;
} else {
dev_dbg(dev, "set analog voltage ok\n");
}
} else {
analog_regulator = NULL;
dev_warn(dev, "cannot get analog voltage\n");
}
return ret;
}
static s32 ov5640_write_reg(u16 reg, u8 val)
{
u8 au8Buf[3] = {0};
au8Buf[0] = reg >> 8;
au8Buf[1] = reg & 0xff;
au8Buf[2] = val;
if (i2c_master_send(ov5640_data.i2c_client, au8Buf, 3) < 0) {
pr_err("%s:write reg error:reg=%x,val=%x\n",
__func__, reg, val);
return -1;
}
return 0;
}
static s32 ov5640_read_reg(u16 reg, u8 *val)
{
u8 au8RegBuf[2] = {0};
u8 u8RdVal = 0;
au8RegBuf[0] = reg >> 8;
au8RegBuf[1] = reg & 0xff;
if (2 != i2c_master_send(ov5640_data.i2c_client, au8RegBuf, 2)) {
pr_err("%s:write reg error:reg=%x\n",
__func__, reg);
return -1;
}
if (1 != i2c_master_recv(ov5640_data.i2c_client, &u8RdVal, 1)) {
pr_err("%s:read reg error:reg=%x,val=%x\n",
__func__, reg, u8RdVal);
return -1;
}
*val = u8RdVal;
return u8RdVal;
}
static int ov5640_set_clk_rate(void)
{
u32 tgt_xclk; /* target xclk */
int ret;
/* mclk */
tgt_xclk = ov5640_data.mclk;
tgt_xclk = min(tgt_xclk, (u32)OV5640_XCLK_MAX);
tgt_xclk = max(tgt_xclk, (u32)OV5640_XCLK_MIN);
ov5640_data.mclk = tgt_xclk;
pr_debug(" Setting mclk to %d MHz\n", tgt_xclk / 1000000);
ret = clk_set_rate(ov5640_data.sensor_clk, ov5640_data.mclk);
if (ret < 0)
pr_debug("set rate filed, rate=%d\n", ov5640_data.mclk);
return ret;
}
/* download ov5640 settings to sensor through i2c */
static int ov5640_download_firmware(struct reg_value *pModeSetting, s32 ArySize)
{
register u32 Delay_ms = 0;
register u16 RegAddr = 0;
register u8 Mask = 0;
register u8 Val = 0;
u8 RegVal = 0;
int i, retval = 0;
for (i = 0; i < ArySize; ++i, ++pModeSetting) {
Delay_ms = pModeSetting->u32Delay_ms;
RegAddr = pModeSetting->u16RegAddr;
Val = pModeSetting->u8Val;
Mask = pModeSetting->u8Mask;
if (Mask) {
retval = ov5640_read_reg(RegAddr, &RegVal);
if (retval < 0)
goto err;
RegVal &= ~(u8)Mask;
Val &= Mask;
Val |= RegVal;
}
retval = ov5640_write_reg(RegAddr, Val);
if (retval < 0)
goto err;
if (Delay_ms)
msleep(Delay_ms);
}
err:
return retval;
}
static void ov5640_soft_reset(void)
{
/* sysclk from pad */
ov5640_write_reg(0x3103, 0x11);
/* software reset */
ov5640_write_reg(0x3008, 0x82);
/* delay at least 5ms */
msleep(10);
}
static int ov5640_config_init(void)
{
struct reg_value *pModeSetting = NULL;
int ArySize = 0, retval = 0;
/* Configure ov5640 initial parm */
pModeSetting = ov5640_init_parm;
ArySize = ARRAY_SIZE(ov5640_init_parm);
retval = ov5640_download_firmware(pModeSetting, ArySize);
if (retval < 0)
return retval;
return 0;
}
static int ov5640_config_resolution(enum ov5640_mode mode)
{
struct reg_value *pModeSetting = NULL;
int ArySize = 0, retval = 0;
if (mode < ov5640_mode_MIN || mode > ov5640_mode_MAX)
return -EINVAL;
if (mode == ov5640_mode_1080P_1920_1080) {
ov5640_write_reg(0x3709, 0x12);
ov5640_write_reg(0x3821, 0x06);
}
if (ov5640_data.mipi_csi && mode == ov5640_mode_480_272) {
mode = ov5640_mode_VGA_640_480;
pr_warn("Not support 480*272, change to 640*480\n");
}
/* Configure ov5640 initial parm */
pModeSetting = ov5640_mode_info_data[mode].init_data_ptr;
ArySize = ov5640_mode_info_data[mode].init_data_size;
retval = ov5640_download_firmware(pModeSetting, ArySize);
if (retval < 0)
return retval;
return 0;
}
static int ov5640_config_others(enum ov5640_frame_rate rate,
enum ov5640_mode mode)
{
struct reg_value *pModeSetting = NULL;
int ArySize = 0, retval = 0;
if (mode < ov5640_mode_MIN || mode > ov5640_mode_MAX)
return -EINVAL;
if (ov5640_data.mipi_csi) {
mode = (mode == ov5640_mode_480_272) ?
ov5640_mode_VGA_640_480 : mode;
pModeSetting = ov5640_mipi_pll_info_data[rate][mode].init_data_ptr;
ArySize = ov5640_mipi_pll_info_data[rate][mode].init_data_size;
} else {
pModeSetting = ov5640_pll_info_data[rate][mode].init_data_ptr;
ArySize = ov5640_pll_info_data[rate][mode].init_data_size;
}
retval = ov5640_download_firmware(pModeSetting, ArySize);
if (retval < 0)
return retval;
/* Configure ov5640 initial parm */
if (ov5640_data.mipi_csi) {
pModeSetting = ov5640_mipi_config;
ArySize = ARRAY_SIZE(ov5640_mipi_config);
} else {
pModeSetting = ov5640_config;
ArySize = ARRAY_SIZE(ov5640_config);
}
retval = ov5640_download_firmware(pModeSetting, ArySize);
if (retval < 0)
return retval;
return 0;
}
static void ov5640_start(void)
{
ov5640_write_reg(0x3008, 0x02);
ov5640_write_reg(0x3008, 0x02);
msleep(1);
}
static int ov5640_change_mode(enum ov5640_frame_rate rate,
enum ov5640_mode mode)
{
int retval;
if (mode == ov5640_mode_1080P_1920_1080 && rate != ov5640_15_fps) {
pr_warning("1080P only suppoert 15fps frame rate\n");
rate = ov5640_15_fps;
}
retval = ov5640_config_resolution(mode);
if (retval < 0) {
pr_err("%s config resolution fail\n", __func__);
return -EINVAL;
}
retval = ov5640_config_others(rate, mode);
if (retval < 0) {
pr_err("%s config others fail\n", __func__);
return -EINVAL;
}
return 0;
}
static int init_device(void)
{
int retval;
ov5640_soft_reset();
retval = ov5640_config_init();
if (retval < 0)
return retval;
retval = ov5640_config_resolution(ov5640_mode_VGA_640_480);
if (retval < 0)
return retval;
retval = ov5640_config_others(ov5640_30_fps, ov5640_mode_VGA_640_480);
if (retval < 0)
return retval;
ov5640_start();
return 0;
}
static void ov5640_stop(void)
{
ov5640_write_reg(0x3008, 0x42);
msleep(1);
}
/*!
* 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)
clk_prepare_enable(ov5640_data.sensor_clk);
else
clk_disable_unprepare(ov5640_data.sensor_clk);
sensor->on = on;
return 0;
}
/*!
* ov5640_g_parm - V4L2 sensor interface handler for VIDIOC_G_PARM ioctl
* @s: pointer to standard V4L2 sub device structure
* @a: pointer to standard V4L2 VIDIOC_G_PARM ioctl structure
*
* Returns the sensor's video CAPTURE parameters.
*/
static int ov5640_g_parm(struct v4l2_subdev *sd, struct v4l2_streamparm *a)
{
struct i2c_client *client = v4l2_get_subdevdata(sd);
struct ov5640 *sensor = to_ov5640(client);
struct v4l2_captureparm *cparm = &a->parm.capture;
int ret = 0;
switch (a->type) {
/* This is the only case currently handled. */
case V4L2_BUF_TYPE_VIDEO_CAPTURE:
case V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE:
memset(a, 0, sizeof(*a));
a->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
cparm->capability = sensor->streamcap.capability;
cparm->timeperframe = sensor->streamcap.timeperframe;
cparm->capturemode = sensor->streamcap.capturemode;
ret = 0;
break;
/* These are all the possible cases. */
case V4L2_BUF_TYPE_VIDEO_OUTPUT:
case V4L2_BUF_TYPE_VIDEO_OVERLAY:
case V4L2_BUF_TYPE_VBI_CAPTURE:
case V4L2_BUF_TYPE_VBI_OUTPUT:
case V4L2_BUF_TYPE_SLICED_VBI_CAPTURE:
case V4L2_BUF_TYPE_SLICED_VBI_OUTPUT:
ret = -EINVAL;
break;
default:
pr_debug(" type is unknown - %d\n", a->type);
ret = -EINVAL;
break;
}
return ret;
}
/*!
* ov5460_s_parm - V4L2 sensor interface handler for VIDIOC_S_PARM ioctl
* @s: pointer to standard V4L2 sub device structure
* @a: pointer to standard V4L2 VIDIOC_S_PARM ioctl structure
*
* Configures the sensor to use the input parameters, if possible. If
* not possible, reverts to the old parameters and returns the
* appropriate error code.
*/
static int ov5640_s_parm(struct v4l2_subdev *sd, struct v4l2_streamparm *a)
{
struct i2c_client *client = v4l2_get_subdevdata(sd);
struct ov5640 *sensor = to_ov5640(client);
struct v4l2_fract *timeperframe = &a->parm.capture.timeperframe;
u32 tgt_fps; /* target frames per secound */
enum ov5640_frame_rate frame_rate;
enum ov5640_mode mode = a->parm.capture.capturemode;
int ret = 0;
switch (a->type) {
/* This is the only case currently handled. */
case V4L2_BUF_TYPE_VIDEO_CAPTURE:
case V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE:
/* 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;
}
if (mode == ov5640_mode_1080P_1920_1080 && tgt_fps != 15) {
pr_warning("1080P only suppoert 15fps frame rate\n");
timeperframe->denominator = 15;
timeperframe->numerator = 1;
}
/* Actual frame rate we use */
tgt_fps = timeperframe->denominator /
timeperframe->numerator;
if (tgt_fps == 30)
frame_rate = ov5640_30_fps;
else if (tgt_fps == 15)
frame_rate = ov5640_15_fps;
else {
pr_err(" The camera frame rate is not supported!\n");
goto error;
}
ret = ov5640_change_mode(frame_rate, mode);
if (ret < 0)
goto error;
sensor->streamcap.timeperframe = *timeperframe;
sensor->streamcap.capturemode = mode;
sensor->pix.width = ov5640_mode_info_data[mode].width;
sensor->pix.height = ov5640_mode_info_data[mode].height;
break;
/* These are all the possible cases. */
case V4L2_BUF_TYPE_VIDEO_OUTPUT:
case V4L2_BUF_TYPE_VIDEO_OVERLAY:
case V4L2_BUF_TYPE_VBI_CAPTURE:
case V4L2_BUF_TYPE_VBI_OUTPUT:
case V4L2_BUF_TYPE_SLICED_VBI_CAPTURE:
case V4L2_BUF_TYPE_SLICED_VBI_OUTPUT:
pr_debug(" type is not " \
"V4L2_BUF_TYPE_VIDEO_CAPTURE but %d\n",
a->type);
ret = -EINVAL;
break;
default:
pr_debug(" type is unknown - %d\n", a->type);
ret = -EINVAL;
break;
}
error:
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);
if (enable)
ov5640_start();
else
ov5640_stop();
sensor->on = enable;
return 0;
}
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);
if (format->pad)
return -EINVAL;
if (!fmt) {
if (sensor->mipi_csi) {
mf->code = ov5640_colour_fmts[1].code;
mf->colorspace = ov5640_colour_fmts[1].colorspace;
} else {
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;
return 0;
}
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;
memset(mf, 0, sizeof(struct v4l2_mbus_framefmt));
if (sensor->mipi_csi) {
mf->code = ov5640_colour_fmts[1].code;
mf->colorspace = ov5640_colour_fmts[1].colorspace;
} else {
mf->code = ov5640_colour_fmts[0].code;
mf->colorspace = ov5640_colour_fmts[0].colorspace;
}
mf->width = sensor->pix.width;
mf->height = sensor->pix.height;
mf->field = V4L2_FIELD_NONE;
mf->reserved[1] = (sensor->mipi_csi) ? find_hs_configure(sensor) : 0;
dev_dbg(&client->dev, "%s code=0x%x, w/h=(%d,%d), colorspace=%d, field=%d\n",
__func__, mf->code, mf->width, mf->height, mf->colorspace, mf->field);
return 0;
}
static int ov5640_enum_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 = ov5640_mode_info_data[fse->index].width;
fse->min_width = fse->max_width;
fse->max_height = ov5640_mode_info_data[fse->index].height;
fse->min_height = fse->max_height;
return 0;
}
/*!
* ov5640_enum_frameintervals - V4L2 sensor interface handler for
* VIDIOC_ENUM_FRAMEINTERVALS ioctl
* @s: pointer to standard V4L2 device structure
* @fival: standard V4L2 VIDIOC_ENUM_FRAMEINTERVALS ioctl structure
*
* Return 0 if successful, otherwise -EINVAL.
*/
static int ov5640_enum_frameintervals(struct v4l2_subdev *sd,
struct v4l2_subdev_pad_config *cfg,
struct v4l2_subdev_frame_interval_enum *fie)
{
int i, j, count;
if (fie->index < 0 || fie->index > ov5640_mode_MAX)
return -EINVAL;
if (fie->width == 0 || fie->height == 0 ||
fie->code == 0) {
pr_warning("Please assign pixel format, width and height.\n");
return -EINVAL;
}
fie->interval.numerator = 1;
count = 0;
for (i = 0; i < ARRAY_SIZE(ov5640_framerates); i++) {
for (j = 0; j < (ov5640_mode_MAX + 1); j++) {
if (fie->width == ov5640_mode_info_data[j].width
&& fie->height == ov5640_mode_info_data[j].height
&& ov5640_mode_info_data[j].init_data_ptr != NULL) {
count++;
}
if (fie->index == (count - 1)) {
fie->interval.denominator = ov5640_framerates[i];
if (ov5640_mode_info_data[j].mode ==
ov5640_mode_1080P_1920_1080)
fie->interval.denominator = ov5640_framerates[0];
return 0;
}
}
}
return -EINVAL;
}
static int ov5640_link_setup(struct media_entity *entity,
const struct media_pad *local,
const struct media_pad *remote, u32 flags)
{
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_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,
};
static struct v4l2_subdev_ops ov5640_subdev_ops = {
.core = &ov5640_subdev_core_ops,
.video = &ov5640_subdev_video_ops,
.pad = &ov5640_subdev_pad_ops,
};
static const struct media_entity_operations ov5640_sd_media_ops = {
.link_setup = ov5640_link_setup,
};
/*!
* 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;
struct v4l2_subdev *sd;
int retval;
u8 chip_id_high, chip_id_low;
/* ov5640 pinctrl */
pinctrl = devm_pinctrl_get_select_default(dev);
if (IS_ERR(pinctrl)) {
dev_err(dev, "setup pinctrl failed\n");
return PTR_ERR(pinctrl);
}
/* request power down pin */
pwn_gpio = of_get_named_gpio(dev->of_node, "pwn-gpios", 0);
if (!gpio_is_valid(pwn_gpio)) {
dev_err(dev, "no sensor pwdn pin available\n");
return -ENODEV;
}
retval = devm_gpio_request_one(dev, pwn_gpio, GPIOF_OUT_INIT_HIGH,
"ov5640_pwdn");
if (retval < 0)
return retval;
/* request reset pin */
rst_gpio = of_get_named_gpio(dev->of_node, "rst-gpios", 0);
if (!gpio_is_valid(rst_gpio)) {
dev_err(dev, "no sensor reset pin available\n");
devm_gpio_free(dev, pwn_gpio);
return -EINVAL;
}
retval = devm_gpio_request_one(dev, rst_gpio, GPIOF_OUT_INIT_LOW,
"ov5640_reset");
if (retval < 0) {
devm_gpio_free(dev, pwn_gpio);
return retval;
}
/* Set initial values for the sensor struct. */
memset(&ov5640_data, 0, sizeof(ov5640_data));
ov5640_data.sensor_clk = devm_clk_get(dev, "csi_mclk");
if (IS_ERR(ov5640_data.sensor_clk)) {
dev_err(dev, "get mclk failed\n");
devm_gpio_free(dev, pwn_gpio);
devm_gpio_free(dev, rst_gpio);
return PTR_ERR(ov5640_data.sensor_clk);
}
retval = of_property_read_u32(dev->of_node, "mclk",
&ov5640_data.mclk);
if (retval) {
dev_err(dev, "mclk frequency is invalid\n");
return retval;
}
retval = of_property_read_u32(dev->of_node, "mclk_source",
(u32 *) &(ov5640_data.mclk_source));
if (retval) {
dev_err(dev, "mclk_source invalid\n");
return retval;
}
retval = of_property_read_u32(dev->of_node, "csi_id",
&(ov5640_data.csi));
if (retval) {
dev_err(dev, "csi_id invalid\n");
return retval;
}
ov5640_data.mipi_csi = of_property_read_bool(dev->of_node, "mipi_csi");
/* Set mclk rate before clk on */
ov5640_set_clk_rate();
retval = clk_prepare_enable(ov5640_data.sensor_clk);
if (retval < 0) {
dev_err(dev, "%s: enable sensor clk fail\n", __func__);
return -EINVAL;
}
ov5640_data.io_init = ov5640_reset;
ov5640_data.i2c_client = client;
ov5640_data.pix.pixelformat = (ov5640_data.mipi_csi) ?
V4L2_PIX_FMT_UYVY : V4L2_PIX_FMT_YVYU;
ov5640_data.pix.width = ov5640_mode_info_data[0].width;
ov5640_data.pix.height = ov5640_mode_info_data[0].height;
ov5640_data.streamcap.capability = V4L2_MODE_HIGHQUALITY |
V4L2_CAP_TIMEPERFRAME;
ov5640_data.streamcap.capturemode = 0;
ov5640_data.streamcap.timeperframe.denominator = DEFAULT_FPS;
ov5640_data.streamcap.timeperframe.numerator = 1;
ov5640_regulator_enable(&client->dev);
ov5640_reset();
retval = ov5640_read_reg(OV5640_CHIP_ID_HIGH_BYTE, &chip_id_high);
if (retval < 0 || chip_id_high != 0x56) {
clk_disable_unprepare(ov5640_data.sensor_clk);
pr_warning("camera ov5640 is not found\n");
return -ENODEV;
}
retval = ov5640_read_reg(OV5640_CHIP_ID_LOW_BYTE, &chip_id_low);
if (retval < 0 || chip_id_low != 0x40) {
clk_disable_unprepare(ov5640_data.sensor_clk);
pr_warning("camera ov5640 is not found\n");
return -ENODEV;
}
retval = init_device();
if (retval < 0) {
clk_disable_unprepare(ov5640_data.sensor_clk);
pr_warning("camera ov5640 init fail\n");
return -ENODEV;
}
sd = &ov5640_data.subdev;
v4l2_i2c_subdev_init(sd, client, &ov5640_subdev_ops);
sd->flags |= V4L2_SUBDEV_FL_HAS_DEVNODE;
sd->entity.function = MEDIA_ENT_F_CAM_SENSOR;
ov5640_data.pads[OV5640_SENS_PAD_SOURCE].flags = MEDIA_PAD_FL_SOURCE;
retval = media_entity_pads_init(&sd->entity, OV5640_SENS_PADS_NUM,
ov5640_data.pads);
sd->entity.ops = &ov5640_sd_media_ops;
if (retval < 0)
return retval;
retval = v4l2_async_register_subdev(sd);
if (retval < 0) {
dev_err(&client->dev,
"%s--Async register failed, ret=%d\n", __func__, retval);
media_entity_cleanup(&sd->entity);
}
clk_disable_unprepare(ov5640_data.sensor_clk);
pr_info("%s camera ov5640, is found\n", __func__);
return retval;
}
/*!
* ov5640 I2C detach function
*
* @param client struct i2c_client *
* @return Error code indicating success or failure
*/
static int ov5640_remove(struct i2c_client *client)
{
struct v4l2_subdev *sd = i2c_get_clientdata(client);
v4l2_async_unregister_subdev(sd);
clk_unprepare(ov5640_data.sensor_clk);
ov5640_power_down(1);
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 Camera Driver");
MODULE_LICENSE("GPL");
MODULE_VERSION("3.0");
MODULE_ALIAS("CSI");