--- /dev/null
+/*
+ * Copyright (C) 2012-2015 Freescale Semiconductor, Inc. All Rights Reserved.
+ * Copyright 2018 NXP
+ */
+/*
+ * The code contained herein is licensed under the GNU General Public
+ * License. You may obtain a copy of the GNU General Public License
+ * Version 2 or later at the following locations:
+ *
+ * http://www.opensource.org/licenses/gpl-license.html
+ * http://www.gnu.org/copyleft/gpl.html
+ */
+
+#include <linux/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;
+
+ /* 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},
+};
+
+/* 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 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 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_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_mipi_v3", 0},
+ {},
+};
+
+MODULE_DEVICE_TABLE(i2c, ov5640_id);
+
+static struct i2c_driver ov5640_i2c_driver = {
+ .driver = {
+ .owner = THIS_MODULE,
+ .name = "ov5640_mipi_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);
+
+ udelay(2000);
+}
+
+static inline void ov5640_reset(void)
+{
+ gpio_set_value_cansleep(pwn_gpio, 1);
+ gpio_set_value_cansleep(rst_gpio, 0);
+ udelay(5000);
+
+ gpio_set_value_cansleep(pwn_gpio, 0);
+ udelay(1000);
+
+ 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");
+ 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 (i2c_master_send(ov5640_data.i2c_client, au8RegBuf, 2) != 2) {
+ pr_err("%s:write reg error:reg=%x\n",
+ __func__, reg);
+ return -1;
+ }
+
+ if (i2c_master_recv(ov5640_data.i2c_client, &u8RdVal, 1) != 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_t(u32, tgt_xclk, (u32)OV5640_XCLK_MAX);
+ tgt_xclk = max_t(u32, 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 (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;
+
+ 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;
+ retval = ov5640_download_firmware(pModeSetting, ArySize);
+ if (retval < 0)
+ return retval;
+
+ /* Configure ov5640 initial parm */
+ pModeSetting = ov5640_mipi_config;
+ ArySize = ARRAY_SIZE(ov5640_mipi_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);
+ udelay(1000);
+}
+
+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_warn("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);
+ udelay(1000);
+}
+
+/*!
+ * 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_warn("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) {
+ mf->code = ov5640_colour_fmts[1].code;
+ mf->colorspace = ov5640_colour_fmts[1].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));
+
+ mf->code = ov5640_colour_fmts[1].code;
+ mf->colorspace = ov5640_colour_fmts[1].colorspace;
+ mf->width = sensor->pix.width;
+ mf->height = sensor->pix.height;
+ mf->field = V4L2_FIELD_NONE;
+ mf->reserved[1] = find_hs_configure(sensor);
+
+ 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_warn("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, rst_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;
+ }
+
+ /* 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 = V4L2_PIX_FMT_UYVY;
+ 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_warn("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_warn("camera ov5640 is not found\n");
+ return -ENODEV;
+ }
+
+ retval = init_device();
+ if (retval < 0) {
+ clk_disable_unprepare(ov5640_data.sensor_clk);
+ pr_warn("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 mipi 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("MIPI CSI");
projects / linux.git / commitdiff