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初级开发人员告诉我:OO 设计模式太复杂而且没用

我从我们的谈话中学到了很多东西。

对话

几周前,午餐时间。

我的学弟告诉我:“我认为面向对象编程没有意义,它总是在复杂的事情上。”

魔兽世界单机版GM命令大全

看完GM命令发现游戏角色改名、改阵营真的是无本经营啊。现分享一下AZ端、TC端的GM命令,大差不差。添加了其它mod的朋友需要去自行去查看源码。

例如:添加了个人经验倍率调整mod,会多出 .xp enable,.xp disable,.xp set $rate 等命令分别用来开启、禁用经验获取,设置经验倍率等。

Expo SDK 53.0.7 的 超详细 app.json 和 eas.json 配置项说明

以下是针对 Expo SDK 53.0.7

如何用monkey测试IOS

Monkey是安卓平台的一个命令行工具,它可以向系统发送伪随机事件,如按键输入、触摸屏输入、手势输入等,从而帮助开发人员、测试人员实现对App的压力测试。在安卓平台,Monkey是一种有效的方法,用来测试软件的稳定性、健壮性。


那么IOS 平台,是不是也有这么好的工具呢?

「必看」常见数控机床报警信息中英文对照数控问题对照


T WORD ERROR (T 码错误)

LOW OIL LEVEL (油位低)

SPINPLE FAULT (主轴故障)

IMX258摄像头驱动

IMX258 13MP OIS USB Camera (A)
说明
IMX258 13MP OIS USB Camera (A)
功能简介		
特性	USB 通用摄像头 1300万像素
接口	USB
参数
像 素:1300万
分 辨 率:4224 × 3192
感光芯片:IMX258
D S P :自动增益/曝光/白平衡
摄 像 头:
CCD尺寸:1/3.06 inch
光圈(F):2.4
焦距(EFL):2.35 mm
视场角(FOV):127°(D) 99.5°(H) 70°(V)
对焦方式:自动对焦
接口类型:USB1.0
图像:
支持的图像格式:MJPEG
静态图片分辨率:4224 × 3192
视频录像支持:
10 FPS 4192 × 3104 (全画幅)
20 FPS 3840 × 2160 (4K)
25 FPS 1920 × 1080 (1080P
工作电压:5V ± 5%
工作温度:0°C ~ 50°C
镜头尺寸:19.00 × 19.00 × 9.90 mm
产品尺寸:38.00 × 35.80 mm
支持系统:Windows、Linux、MacOS

// SPDX-License-Identifier: GPL-2.0
// Copyright (C) 2018 Intel Corporation

#include <linux/acpi.h>
#include <linux/delay.h>
#include <linux/i2c.h>
#include <linux/module.h>
#include <linux/pm_runtime.h>
#include <media/v4l2-ctrls.h>
#include <media/v4l2-device.h>
#include <asm/unaligned.h>

#define IMX258_REG_VALUE_08BIT		1
#define IMX258_REG_VALUE_16BIT		2

#define IMX258_REG_MODE_SELECT		0x0100
#define IMX258_MODE_STANDBY		0x00
#define IMX258_MODE_STREAMING		0x01

/* Chip ID */
#define IMX258_REG_CHIP_ID		0x0016
#define IMX258_CHIP_ID			0x0258

/* V_TIMING internal */
#define IMX258_VTS_30FPS		0x0c98
#define IMX258_VTS_30FPS_2K		0x0638
#define IMX258_VTS_30FPS_VGA		0x034c
#define IMX258_VTS_MAX			0xffff

/*Frame Length Line*/
#define IMX258_FLL_MIN			0x08a6
#define IMX258_FLL_MAX			0xffff
#define IMX258_FLL_STEP			1
#define IMX258_FLL_DEFAULT		0x0c98

/* HBLANK control - read only */
#define IMX258_PPL_DEFAULT		5352

/* Exposure control */
#define IMX258_REG_EXPOSURE		0x0202
#define IMX258_EXPOSURE_MIN		4
#define IMX258_EXPOSURE_STEP		1
#define IMX258_EXPOSURE_DEFAULT		0x640
#define IMX258_EXPOSURE_MAX		65535

/* Analog gain control */
#define IMX258_REG_ANALOG_GAIN		0x0204
#define IMX258_ANA_GAIN_MIN		0
#define IMX258_ANA_GAIN_MAX		0x1fff
#define IMX258_ANA_GAIN_STEP		1
#define IMX258_ANA_GAIN_DEFAULT		0x0

/* Digital gain control */
#define IMX258_REG_GR_DIGITAL_GAIN	0x020e
#define IMX258_REG_R_DIGITAL_GAIN	0x0210
#define IMX258_REG_B_DIGITAL_GAIN	0x0212
#define IMX258_REG_GB_DIGITAL_GAIN	0x0214
#define IMX258_DGTL_GAIN_MIN		0
#define IMX258_DGTL_GAIN_MAX		4096	/* Max = 0xFFF */
#define IMX258_DGTL_GAIN_DEFAULT	1024
#define IMX258_DGTL_GAIN_STEP		1

/* Test Pattern Control */
#define IMX258_REG_TEST_PATTERN		0x0600
#define IMX258_TEST_PATTERN_DISABLE	0
#define IMX258_TEST_PATTERN_SOLID_COLOR	1
#define IMX258_TEST_PATTERN_COLOR_BARS	2
#define IMX258_TEST_PATTERN_GREY_COLOR	3
#define IMX258_TEST_PATTERN_PN9		4

/* Orientation */
#define REG_MIRROR_FLIP_CONTROL		0x0101
#define REG_CONFIG_MIRROR_FLIP		0x03
#define REG_CONFIG_FLIP_TEST_PATTERN	0x02

struct imx258_reg {
	u16 address;
	u8 val;
};

struct imx258_reg_list {
	u32 num_of_regs;
	const struct imx258_reg *regs;
};

/* Link frequency config */
struct imx258_link_freq_config {
	u32 pixels_per_line;

	/* PLL registers for this link frequency */
	struct imx258_reg_list reg_list;
};

/* Mode : resolution and related config&values */
struct imx258_mode {
	/* Frame width */
	u32 width;
	/* Frame height */
	u32 height;

	/* V-timing */
	u32 vts_def;
	u32 vts_min;

	/* Index of Link frequency config to be used */
	u32 link_freq_index;
	/* Default register values */
	struct imx258_reg_list reg_list;
};

/* 4208x3118 needs 1267Mbps/lane, 4 lanes */
static const struct imx258_reg mipi_data_rate_1267mbps[] = {
	{ 0x0301, 0x05 },
	{ 0x0303, 0x02 },
	{ 0x0305, 0x03 },
	{ 0x0306, 0x00 },
	{ 0x0307, 0xC6 },
	{ 0x0309, 0x0A },
	{ 0x030B, 0x01 },
	{ 0x030D, 0x02 },
	{ 0x030E, 0x00 },
	{ 0x030F, 0xD8 },
	{ 0x0310, 0x00 },
	{ 0x0820, 0x13 },
	{ 0x0821, 0x4C },
	{ 0x0822, 0xCC },
	{ 0x0823, 0xCC },
};

static const struct imx258_reg mipi_data_rate_640mbps[] = {
	{ 0x0301, 0x05 },
	{ 0x0303, 0x02 },
	{ 0x0305, 0x03 },
	{ 0x0306, 0x00 },
	{ 0x0307, 0x64 },
	{ 0x0309, 0x0A },
	{ 0x030B, 0x01 },
	{ 0x030D, 0x02 },
	{ 0x030E, 0x00 },
	{ 0x030F, 0xD8 },
	{ 0x0310, 0x00 },
	{ 0x0820, 0x0A },
	{ 0x0821, 0x00 },
	{ 0x0822, 0x00 },
	{ 0x0823, 0x00 },
};

static const struct imx258_reg mode_4208x3118_regs[] = {
	{ 0x0136, 0x13 },
	{ 0x0137, 0x33 },
	{ 0x3051, 0x00 },
	{ 0x3052, 0x00 },
	{ 0x4E21, 0x14 },
	{ 0x6B11, 0xCF },
	{ 0x7FF0, 0x08 },
	{ 0x7FF1, 0x0F },
	{ 0x7FF2, 0x08 },
	{ 0x7FF3, 0x1B },
	{ 0x7FF4, 0x23 },
	{ 0x7FF5, 0x60 },
	{ 0x7FF6, 0x00 },
	{ 0x7FF7, 0x01 },
	{ 0x7FF8, 0x00 },
	{ 0x7FF9, 0x78 },
	{ 0x7FFA, 0x00 },
	{ 0x7FFB, 0x00 },
	{ 0x7FFC, 0x00 },
	{ 0x7FFD, 0x00 },
	{ 0x7FFE, 0x00 },
	{ 0x7FFF, 0x03 },
	{ 0x7F76, 0x03 },
	{ 0x7F77, 0xFE },
	{ 0x7FA8, 0x03 },
	{ 0x7FA9, 0xFE },
	{ 0x7B24, 0x81 },
	{ 0x7B25, 0x00 },
	{ 0x6564, 0x07 },
	{ 0x6B0D, 0x41 },
	{ 0x653D, 0x04 },
	{ 0x6B05, 0x8C },
	{ 0x6B06, 0xF9 },
	{ 0x6B08, 0x65 },
	{ 0x6B09, 0xFC },
	{ 0x6B0A, 0xCF },
	{ 0x6B0B, 0xD2 },
	{ 0x6700, 0x0E },
	{ 0x6707, 0x0E },
	{ 0x9104, 0x00 },
	{ 0x4648, 0x7F },
	{ 0x7420, 0x00 },
	{ 0x7421, 0x1C },
	{ 0x7422, 0x00 },
	{ 0x7423, 0xD7 },
	{ 0x5F04, 0x00 },
	{ 0x5F05, 0xED },
	{ 0x0112, 0x0A },
	{ 0x0113, 0x0A },
	{ 0x0114, 0x03 },
	{ 0x0342, 0x14 },
	{ 0x0343, 0xE8 },
	{ 0x0340, 0x0C },
	{ 0x0341, 0x50 },
	{ 0x0344, 0x00 },
	{ 0x0345, 0x00 },
	{ 0x0346, 0x00 },
	{ 0x0347, 0x00 },
	{ 0x0348, 0x10 },
	{ 0x0349, 0x6F },
	{ 0x034A, 0x0C },
	{ 0x034B, 0x2E },
	{ 0x0381, 0x01 },
	{ 0x0383, 0x01 },
	{ 0x0385, 0x01 },
	{ 0x0387, 0x01 },
	{ 0x0900, 0x00 },
	{ 0x0901, 0x11 },
	{ 0x0401, 0x00 },
	{ 0x0404, 0x00 },
	{ 0x0405, 0x10 },
	{ 0x0408, 0x00 },
	{ 0x0409, 0x00 },
	{ 0x040A, 0x00 },
	{ 0x040B, 0x00 },
	{ 0x040C, 0x10 },
	{ 0x040D, 0x70 },
	{ 0x040E, 0x0C },
	{ 0x040F, 0x30 },
	{ 0x3038, 0x00 },
	{ 0x303A, 0x00 },
	{ 0x303B, 0x10 },
	{ 0x300D, 0x00 },
	{ 0x034C, 0x10 },
	{ 0x034D, 0x70 },
	{ 0x034E, 0x0C },
	{ 0x034F, 0x30 },
	{ 0x0350, 0x01 },
	{ 0x0202, 0x0C },
	{ 0x0203, 0x46 },
	{ 0x0204, 0x00 },
	{ 0x0205, 0x00 },
	{ 0x020E, 0x01 },
	{ 0x020F, 0x00 },
	{ 0x0210, 0x01 },
	{ 0x0211, 0x00 },
	{ 0x0212, 0x01 },
	{ 0x0213, 0x00 },
	{ 0x0214, 0x01 },
	{ 0x0215, 0x00 },
	{ 0x7BCD, 0x00 },
	{ 0x94DC, 0x20 },
	{ 0x94DD, 0x20 },
	{ 0x94DE, 0x20 },
	{ 0x95DC, 0x20 },
	{ 0x95DD, 0x20 },
	{ 0x95DE, 0x20 },
	{ 0x7FB0, 0x00 },
	{ 0x9010, 0x3E },
	{ 0x9419, 0x50 },
	{ 0x941B, 0x50 },
	{ 0x9519, 0x50 },
	{ 0x951B, 0x50 },
	{ 0x3030, 0x00 },
	{ 0x3032, 0x00 },
	{ 0x0220, 0x00 },
};

static const struct imx258_reg mode_2104_1560_regs[] = {
	{ 0x0136, 0x13 },
	{ 0x0137, 0x33 },
	{ 0x3051, 0x00 },
	{ 0x3052, 0x00 },
	{ 0x4E21, 0x14 },
	{ 0x6B11, 0xCF },
	{ 0x7FF0, 0x08 },
	{ 0x7FF1, 0x0F },
	{ 0x7FF2, 0x08 },
	{ 0x7FF3, 0x1B },
	{ 0x7FF4, 0x23 },
	{ 0x7FF5, 0x60 },
	{ 0x7FF6, 0x00 },
	{ 0x7FF7, 0x01 },
	{ 0x7FF8, 0x00 },
	{ 0x7FF9, 0x78 },
	{ 0x7FFA, 0x00 },
	{ 0x7FFB, 0x00 },
	{ 0x7FFC, 0x00 },
	{ 0x7FFD, 0x00 },
	{ 0x7FFE, 0x00 },
	{ 0x7FFF, 0x03 },
	{ 0x7F76, 0x03 },
	{ 0x7F77, 0xFE },
	{ 0x7FA8, 0x03 },
	{ 0x7FA9, 0xFE },
	{ 0x7B24, 0x81 },
	{ 0x7B25, 0x00 },
	{ 0x6564, 0x07 },
	{ 0x6B0D, 0x41 },
	{ 0x653D, 0x04 },
	{ 0x6B05, 0x8C },
	{ 0x6B06, 0xF9 },
	{ 0x6B08, 0x65 },
	{ 0x6B09, 0xFC },
	{ 0x6B0A, 0xCF },
	{ 0x6B0B, 0xD2 },
	{ 0x6700, 0x0E },
	{ 0x6707, 0x0E },
	{ 0x9104, 0x00 },
	{ 0x4648, 0x7F },
	{ 0x7420, 0x00 },
	{ 0x7421, 0x1C },
	{ 0x7422, 0x00 },
	{ 0x7423, 0xD7 },
	{ 0x5F04, 0x00 },
	{ 0x5F05, 0xED },
	{ 0x0112, 0x0A },
	{ 0x0113, 0x0A },
	{ 0x0114, 0x03 },
	{ 0x0342, 0x14 },
	{ 0x0343, 0xE8 },
	{ 0x0340, 0x06 },
	{ 0x0341, 0x38 },
	{ 0x0344, 0x00 },
	{ 0x0345, 0x00 },
	{ 0x0346, 0x00 },
	{ 0x0347, 0x00 },
	{ 0x0348, 0x10 },
	{ 0x0349, 0x6F },
	{ 0x034A, 0x0C },
	{ 0x034B, 0x2E },
	{ 0x0381, 0x01 },
	{ 0x0383, 0x01 },
	{ 0x0385, 0x01 },
	{ 0x0387, 0x01 },
	{ 0x0900, 0x01 },
	{ 0x0901, 0x12 },
	{ 0x0401, 0x01 },
	{ 0x0404, 0x00 },
	{ 0x0405, 0x20 },
	{ 0x0408, 0x00 },
	{ 0x0409, 0x02 },
	{ 0x040A, 0x00 },
	{ 0x040B, 0x00 },
	{ 0x040C, 0x10 },
	{ 0x040D, 0x6A },
	{ 0x040E, 0x06 },
	{ 0x040F, 0x18 },
	{ 0x3038, 0x00 },
	{ 0x303A, 0x00 },
	{ 0x303B, 0x10 },
	{ 0x300D, 0x00 },
	{ 0x034C, 0x08 },
	{ 0x034D, 0x38 },
	{ 0x034E, 0x06 },
	{ 0x034F, 0x18 },
	{ 0x0350, 0x01 },
	{ 0x0202, 0x06 },
	{ 0x0203, 0x2E },
	{ 0x0204, 0x00 },
	{ 0x0205, 0x00 },
	{ 0x020E, 0x01 },
	{ 0x020F, 0x00 },
	{ 0x0210, 0x01 },
	{ 0x0211, 0x00 },
	{ 0x0212, 0x01 },
	{ 0x0213, 0x00 },
	{ 0x0214, 0x01 },
	{ 0x0215, 0x00 },
	{ 0x7BCD, 0x01 },
	{ 0x94DC, 0x20 },
	{ 0x94DD, 0x20 },
	{ 0x94DE, 0x20 },
	{ 0x95DC, 0x20 },
	{ 0x95DD, 0x20 },
	{ 0x95DE, 0x20 },
	{ 0x7FB0, 0x00 },
	{ 0x9010, 0x3E },
	{ 0x9419, 0x50 },
	{ 0x941B, 0x50 },
	{ 0x9519, 0x50 },
	{ 0x951B, 0x50 },
	{ 0x3030, 0x00 },
	{ 0x3032, 0x00 },
	{ 0x0220, 0x00 },
};

static const struct imx258_reg mode_1048_780_regs[] = {
	{ 0x0136, 0x13 },
	{ 0x0137, 0x33 },
	{ 0x3051, 0x00 },
	{ 0x3052, 0x00 },
	{ 0x4E21, 0x14 },
	{ 0x6B11, 0xCF },
	{ 0x7FF0, 0x08 },
	{ 0x7FF1, 0x0F },
	{ 0x7FF2, 0x08 },
	{ 0x7FF3, 0x1B },
	{ 0x7FF4, 0x23 },
	{ 0x7FF5, 0x60 },
	{ 0x7FF6, 0x00 },
	{ 0x7FF7, 0x01 },
	{ 0x7FF8, 0x00 },
	{ 0x7FF9, 0x78 },
	{ 0x7FFA, 0x00 },
	{ 0x7FFB, 0x00 },
	{ 0x7FFC, 0x00 },
	{ 0x7FFD, 0x00 },
	{ 0x7FFE, 0x00 },
	{ 0x7FFF, 0x03 },
	{ 0x7F76, 0x03 },
	{ 0x7F77, 0xFE },
	{ 0x7FA8, 0x03 },
	{ 0x7FA9, 0xFE },
	{ 0x7B24, 0x81 },
	{ 0x7B25, 0x00 },
	{ 0x6564, 0x07 },
	{ 0x6B0D, 0x41 },
	{ 0x653D, 0x04 },
	{ 0x6B05, 0x8C },
	{ 0x6B06, 0xF9 },
	{ 0x6B08, 0x65 },
	{ 0x6B09, 0xFC },
	{ 0x6B0A, 0xCF },
	{ 0x6B0B, 0xD2 },
	{ 0x6700, 0x0E },
	{ 0x6707, 0x0E },
	{ 0x9104, 0x00 },
	{ 0x4648, 0x7F },
	{ 0x7420, 0x00 },
	{ 0x7421, 0x1C },
	{ 0x7422, 0x00 },
	{ 0x7423, 0xD7 },
	{ 0x5F04, 0x00 },
	{ 0x5F05, 0xED },
	{ 0x0112, 0x0A },
	{ 0x0113, 0x0A },
	{ 0x0114, 0x03 },
	{ 0x0342, 0x14 },
	{ 0x0343, 0xE8 },
	{ 0x0340, 0x03 },
	{ 0x0341, 0x4C },
	{ 0x0344, 0x00 },
	{ 0x0345, 0x00 },
	{ 0x0346, 0x00 },
	{ 0x0347, 0x00 },
	{ 0x0348, 0x10 },
	{ 0x0349, 0x6F },
	{ 0x034A, 0x0C },
	{ 0x034B, 0x2E },
	{ 0x0381, 0x01 },
	{ 0x0383, 0x01 },
	{ 0x0385, 0x01 },
	{ 0x0387, 0x01 },
	{ 0x0900, 0x01 },
	{ 0x0901, 0x14 },
	{ 0x0401, 0x01 },
	{ 0x0404, 0x00 },
	{ 0x0405, 0x40 },
	{ 0x0408, 0x00 },
	{ 0x0409, 0x06 },
	{ 0x040A, 0x00 },
	{ 0x040B, 0x00 },
	{ 0x040C, 0x10 },
	{ 0x040D, 0x64 },
	{ 0x040E, 0x03 },
	{ 0x040F, 0x0C },
	{ 0x3038, 0x00 },
	{ 0x303A, 0x00 },
	{ 0x303B, 0x10 },
	{ 0x300D, 0x00 },
	{ 0x034C, 0x04 },
	{ 0x034D, 0x18 },
	{ 0x034E, 0x03 },
	{ 0x034F, 0x0C },
	{ 0x0350, 0x01 },
	{ 0x0202, 0x03 },
	{ 0x0203, 0x42 },
	{ 0x0204, 0x00 },
	{ 0x0205, 0x00 },
	{ 0x020E, 0x01 },
	{ 0x020F, 0x00 },
	{ 0x0210, 0x01 },
	{ 0x0211, 0x00 },
	{ 0x0212, 0x01 },
	{ 0x0213, 0x00 },
	{ 0x0214, 0x01 },
	{ 0x0215, 0x00 },
	{ 0x7BCD, 0x00 },
	{ 0x94DC, 0x20 },
	{ 0x94DD, 0x20 },
	{ 0x94DE, 0x20 },
	{ 0x95DC, 0x20 },
	{ 0x95DD, 0x20 },
	{ 0x95DE, 0x20 },
	{ 0x7FB0, 0x00 },
	{ 0x9010, 0x3E },
	{ 0x9419, 0x50 },
	{ 0x941B, 0x50 },
	{ 0x9519, 0x50 },
	{ 0x951B, 0x50 },
	{ 0x3030, 0x00 },
	{ 0x3032, 0x00 },
	{ 0x0220, 0x00 },
};

static const char * const imx258_test_pattern_menu[] = {
	"Disabled",
	"Color Bars",
	"Solid Color",
	"Grey Color Bars",
	"PN9"
};

static const int imx258_test_pattern_val[] = {
	IMX258_TEST_PATTERN_DISABLE,
	IMX258_TEST_PATTERN_COLOR_BARS,
	IMX258_TEST_PATTERN_SOLID_COLOR,
	IMX258_TEST_PATTERN_GREY_COLOR,
	IMX258_TEST_PATTERN_PN9,
};

/* Configurations for supported link frequencies */
#define IMX258_LINK_FREQ_634MHZ	633600000ULL
#define IMX258_LINK_FREQ_320MHZ	320000000ULL

enum {
	IMX258_LINK_FREQ_1267MBPS,
	IMX258_LINK_FREQ_640MBPS,
};

/*
 * pixel_rate = link_freq * data-rate * nr_of_lanes / bits_per_sample
 * data rate => double data rate; number of lanes => 4; bits per pixel => 10
 */
static u64 link_freq_to_pixel_rate(u64 f)
{
	f *= 2 * 4;
	do_div(f, 10);

	return f;
}

/* Menu items for LINK_FREQ V4L2 control */
static const s64 link_freq_menu_items[] = {
	IMX258_LINK_FREQ_634MHZ,
	IMX258_LINK_FREQ_320MHZ,
};

/* Link frequency configs */
static const struct imx258_link_freq_config link_freq_configs[] = {
	[IMX258_LINK_FREQ_1267MBPS] = {
		.pixels_per_line = IMX258_PPL_DEFAULT,
		.reg_list = {
			.num_of_regs = ARRAY_SIZE(mipi_data_rate_1267mbps),
			.regs = mipi_data_rate_1267mbps,
		}
	},
	[IMX258_LINK_FREQ_640MBPS] = {
		.pixels_per_line = IMX258_PPL_DEFAULT,
		.reg_list = {
			.num_of_regs = ARRAY_SIZE(mipi_data_rate_640mbps),
			.regs = mipi_data_rate_640mbps,
		}
	},
};

/* Mode configs */
static const struct imx258_mode supported_modes[] = {
	{
		.width = 4208,
		.height = 3118,
		.vts_def = IMX258_VTS_30FPS,
		.vts_min = IMX258_VTS_30FPS,
		.reg_list = {
			.num_of_regs = ARRAY_SIZE(mode_4208x3118_regs),
			.regs = mode_4208x3118_regs,
		},
		.link_freq_index = IMX258_LINK_FREQ_1267MBPS,
	},
	{
		.width = 2104,
		.height = 1560,
		.vts_def = IMX258_VTS_30FPS_2K,
		.vts_min = IMX258_VTS_30FPS_2K,
		.reg_list = {
			.num_of_regs = ARRAY_SIZE(mode_2104_1560_regs),
			.regs = mode_2104_1560_regs,
		},
		.link_freq_index = IMX258_LINK_FREQ_640MBPS,
	},
	{
		.width = 1048,
		.height = 780,
		.vts_def = IMX258_VTS_30FPS_VGA,
		.vts_min = IMX258_VTS_30FPS_VGA,
		.reg_list = {
			.num_of_regs = ARRAY_SIZE(mode_1048_780_regs),
			.regs = mode_1048_780_regs,
		},
		.link_freq_index = IMX258_LINK_FREQ_640MBPS,
	},
};

struct imx258 {
	struct v4l2_subdev sd;
	struct media_pad pad;

	struct v4l2_ctrl_handler ctrl_handler;
	/* V4L2 Controls */
	struct v4l2_ctrl *link_freq;
	struct v4l2_ctrl *pixel_rate;
	struct v4l2_ctrl *vblank;
	struct v4l2_ctrl *hblank;
	struct v4l2_ctrl *exposure;

	/* Current mode */
	const struct imx258_mode *cur_mode;

	/*
	 * Mutex for serialized access:
	 * Protect sensor module set pad format and start/stop streaming safely.
	 */
	struct mutex mutex;

	/* Streaming on/off */
	bool streaming;
};

static inline struct imx258 *to_imx258(struct v4l2_subdev *_sd)
{
	return container_of(_sd, struct imx258, sd);
}

/* Read registers up to 2 at a time */
static int imx258_read_reg(struct imx258 *imx258, u16 reg, u32 len, u32 *val)
{
	struct i2c_client *client = v4l2_get_subdevdata(&imx258->sd);
	struct i2c_msg msgs[2];
	u8 addr_buf[2] = { reg >> 8, reg & 0xff };
	u8 data_buf[4] = { 0, };
	int ret;

	if (len > 4)
		return -EINVAL;

	/* Write register address */
	msgs[0].addr = client->addr;
	msgs[0].flags = 0;
	msgs[0].len = ARRAY_SIZE(addr_buf);
	msgs[0].buf = addr_buf;

	/* Read data from register */
	msgs[1].addr = client->addr;
	msgs[1].flags = I2C_M_RD;
	msgs[1].len = len;
	msgs[1].buf = &data_buf[4 - len];

	ret = i2c_transfer(client->adapter, msgs, ARRAY_SIZE(msgs));
	if (ret != ARRAY_SIZE(msgs))
		return -EIO;

	*val = get_unaligned_be32(data_buf);

	return 0;
}

/* Write registers up to 2 at a time */
static int imx258_write_reg(struct imx258 *imx258, u16 reg, u32 len, u32 val)
{
	struct i2c_client *client = v4l2_get_subdevdata(&imx258->sd);
	u8 buf[6];

	if (len > 4)
		return -EINVAL;

	put_unaligned_be16(reg, buf);
	put_unaligned_be32(val << (8 * (4 - len)), buf + 2);
	if (i2c_master_send(client, buf, len + 2) != len + 2)
		return -EIO;

	return 0;
}

/* Write a list of registers */
static int imx258_write_regs(struct imx258 *imx258,
			     const struct imx258_reg *regs, u32 len)
{
	struct i2c_client *client = v4l2_get_subdevdata(&imx258->sd);
	unsigned int i;
	int ret;

	for (i = 0; i < len; i++) {
		ret = imx258_write_reg(imx258, regs[i].address, 1,
					regs[i].val);
		if (ret) {
			dev_err_ratelimited(
				&client->dev,
				"Failed to write reg 0x%4.4x. error = %d\n",
				regs[i].address, ret);

			return ret;
		}
	}

	return 0;
}

/* Open sub-device */
static int imx258_open(struct v4l2_subdev *sd, struct v4l2_subdev_fh *fh)
{
	struct v4l2_mbus_framefmt *try_fmt =
		v4l2_subdev_get_try_format(sd, fh->pad, 0);

	/* Initialize try_fmt */
	try_fmt->width = supported_modes[0].width;
	try_fmt->height = supported_modes[0].height;
	try_fmt->code = MEDIA_BUS_FMT_SGRBG10_1X10;
	try_fmt->field = V4L2_FIELD_NONE;

	return 0;
}

static int imx258_update_digital_gain(struct imx258 *imx258, u32 len, u32 val)
{
	int ret;

	ret = imx258_write_reg(imx258, IMX258_REG_GR_DIGITAL_GAIN,
				IMX258_REG_VALUE_16BIT,
				val);
	if (ret)
		return ret;
	ret = imx258_write_reg(imx258, IMX258_REG_GB_DIGITAL_GAIN,
				IMX258_REG_VALUE_16BIT,
				val);
	if (ret)
		return ret;
	ret = imx258_write_reg(imx258, IMX258_REG_R_DIGITAL_GAIN,
				IMX258_REG_VALUE_16BIT,
				val);
	if (ret)
		return ret;
	ret = imx258_write_reg(imx258, IMX258_REG_B_DIGITAL_GAIN,
				IMX258_REG_VALUE_16BIT,
				val);
	if (ret)
		return ret;
	return 0;
}

static int imx258_set_ctrl(struct v4l2_ctrl *ctrl)
{
	struct imx258 *imx258 =
		container_of(ctrl->handler, struct imx258, ctrl_handler);
	struct i2c_client *client = v4l2_get_subdevdata(&imx258->sd);
	int ret = 0;

	/*
	 * Applying V4L2 control value only happens
	 * when power is up for streaming
	 */
	if (pm_runtime_get_if_in_use(&client->dev) == 0)
		return 0;

	switch (ctrl->id) {
	case V4L2_CID_ANALOGUE_GAIN:
		ret = imx258_write_reg(imx258, IMX258_REG_ANALOG_GAIN,
				IMX258_REG_VALUE_16BIT,
				ctrl->val);
		break;
	case V4L2_CID_EXPOSURE:
		ret = imx258_write_reg(imx258, IMX258_REG_EXPOSURE,
				IMX258_REG_VALUE_16BIT,
				ctrl->val);
		break;
	case V4L2_CID_DIGITAL_GAIN:
		ret = imx258_update_digital_gain(imx258, IMX258_REG_VALUE_16BIT,
				ctrl->val);
		break;
	case V4L2_CID_TEST_PATTERN:
		ret = imx258_write_reg(imx258, IMX258_REG_TEST_PATTERN,
				IMX258_REG_VALUE_16BIT,
				imx258_test_pattern_val[ctrl->val]);

		ret = imx258_write_reg(imx258, REG_MIRROR_FLIP_CONTROL,
				IMX258_REG_VALUE_08BIT,
				ctrl->val == imx258_test_pattern_val
				[IMX258_TEST_PATTERN_DISABLE] ?
				REG_CONFIG_MIRROR_FLIP :
				REG_CONFIG_FLIP_TEST_PATTERN);
		break;
	default:
		dev_info(&client->dev,
			 "ctrl(id:0x%x,val:0x%x) is not handled\n",
			 ctrl->id, ctrl->val);
		ret = -EINVAL;
		break;
	}

	pm_runtime_put(&client->dev);

	return ret;
}

static const struct v4l2_ctrl_ops imx258_ctrl_ops = {
	.s_ctrl = imx258_set_ctrl,
};

static int imx258_enum_mbus_code(struct v4l2_subdev *sd,
				  struct v4l2_subdev_pad_config *cfg,
				  struct v4l2_subdev_mbus_code_enum *code)
{
	/* Only one bayer order(GRBG) is supported */
	if (code->index > 0)
		return -EINVAL;

	code->code = MEDIA_BUS_FMT_SGRBG10_1X10;

	return 0;
}

static int imx258_enum_frame_size(struct v4l2_subdev *sd,
				  struct v4l2_subdev_pad_config *cfg,
				  struct v4l2_subdev_frame_size_enum *fse)
{
	if (fse->index >= ARRAY_SIZE(supported_modes))
		return -EINVAL;

	if (fse->code != MEDIA_BUS_FMT_SGRBG10_1X10)
		return -EINVAL;

	fse->min_width = supported_modes[fse->index].width;
	fse->max_width = fse->min_width;
	fse->min_height = supported_modes[fse->index].height;
	fse->max_height = fse->min_height;

	return 0;
}

static void imx258_update_pad_format(const struct imx258_mode *mode,
				     struct v4l2_subdev_format *fmt)
{
	fmt->format.width = mode->width;
	fmt->format.height = mode->height;
	fmt->format.code = MEDIA_BUS_FMT_SGRBG10_1X10;
	fmt->format.field = V4L2_FIELD_NONE;
}

static int __imx258_get_pad_format(struct imx258 *imx258,
				   struct v4l2_subdev_pad_config *cfg,
				   struct v4l2_subdev_format *fmt)
{
	if (fmt->which == V4L2_SUBDEV_FORMAT_TRY)
		fmt->format = *v4l2_subdev_get_try_format(&imx258->sd, cfg,
							  fmt->pad);
	else
		imx258_update_pad_format(imx258->cur_mode, fmt);

	return 0;
}

static int imx258_get_pad_format(struct v4l2_subdev *sd,
				 struct v4l2_subdev_pad_config *cfg,
				 struct v4l2_subdev_format *fmt)
{
	struct imx258 *imx258 = to_imx258(sd);
	int ret;

	mutex_lock(&imx258->mutex);
	ret = __imx258_get_pad_format(imx258, cfg, fmt);
	mutex_unlock(&imx258->mutex);

	return ret;
}

static int imx258_set_pad_format(struct v4l2_subdev *sd,
				 struct v4l2_subdev_pad_config *cfg,
				 struct v4l2_subdev_format *fmt)
{
	struct imx258 *imx258 = to_imx258(sd);
	const struct imx258_mode *mode;
	struct v4l2_mbus_framefmt *framefmt;
	s32 vblank_def;
	s32 vblank_min;
	s64 h_blank;
	s64 pixel_rate;
	s64 link_freq;

	mutex_lock(&imx258->mutex);

	/* Only one raw bayer(GBRG) order is supported */
	fmt->format.code = MEDIA_BUS_FMT_SGRBG10_1X10;

	mode = v4l2_find_nearest_size(supported_modes,
		ARRAY_SIZE(supported_modes), width, height,
		fmt->format.width, fmt->format.height);
	imx258_update_pad_format(mode, fmt);
	if (fmt->which == V4L2_SUBDEV_FORMAT_TRY) {
		framefmt = v4l2_subdev_get_try_format(sd, cfg, fmt->pad);
		*framefmt = fmt->format;
	} else {
		imx258->cur_mode = mode;
		__v4l2_ctrl_s_ctrl(imx258->link_freq, mode->link_freq_index);

		link_freq = link_freq_menu_items[mode->link_freq_index];
		pixel_rate = link_freq_to_pixel_rate(link_freq);
		__v4l2_ctrl_s_ctrl_int64(imx258->pixel_rate, pixel_rate);
		/* Update limits and set FPS to default */
		vblank_def = imx258->cur_mode->vts_def -
			     imx258->cur_mode->height;
		vblank_min = imx258->cur_mode->vts_min -
			     imx258->cur_mode->height;
		__v4l2_ctrl_modify_range(
			imx258->vblank, vblank_min,
			IMX258_VTS_MAX - imx258->cur_mode->height, 1,
			vblank_def);
		__v4l2_ctrl_s_ctrl(imx258->vblank, vblank_def);
		h_blank =
			link_freq_configs[mode->link_freq_index].pixels_per_line
			 - imx258->cur_mode->width;
		__v4l2_ctrl_modify_range(imx258->hblank, h_blank,
					 h_blank, 1, h_blank);
	}

	mutex_unlock(&imx258->mutex);

	return 0;
}

/* Start streaming */
static int imx258_start_streaming(struct imx258 *imx258)
{
	struct i2c_client *client = v4l2_get_subdevdata(&imx258->sd);
	const struct imx258_reg_list *reg_list;
	int ret, link_freq_index;

	/* Setup PLL */
	link_freq_index = imx258->cur_mode->link_freq_index;
	reg_list = &link_freq_configs[link_freq_index].reg_list;
	ret = imx258_write_regs(imx258, reg_list->regs, reg_list->num_of_regs);
	if (ret) {
		dev_err(&client->dev, "%s failed to set plls\n", __func__);
		return ret;
	}

	/* Apply default values of current mode */
	reg_list = &imx258->cur_mode->reg_list;
	ret = imx258_write_regs(imx258, reg_list->regs, reg_list->num_of_regs);
	if (ret) {
		dev_err(&client->dev, "%s failed to set mode\n", __func__);
		return ret;
	}

	/* Set Orientation be 180 degree */
	ret = imx258_write_reg(imx258, REG_MIRROR_FLIP_CONTROL,
			       IMX258_REG_VALUE_08BIT, REG_CONFIG_MIRROR_FLIP);
	if (ret) {
		dev_err(&client->dev, "%s failed to set orientation\n",
			__func__);
		return ret;
	}

	/* Apply customized values from user */
	ret =  __v4l2_ctrl_handler_setup(imx258->sd.ctrl_handler);
	if (ret)
		return ret;

	/* set stream on register */
	return imx258_write_reg(imx258, IMX258_REG_MODE_SELECT,
				IMX258_REG_VALUE_08BIT,
				IMX258_MODE_STREAMING);
}

/* Stop streaming */
static int imx258_stop_streaming(struct imx258 *imx258)
{
	struct i2c_client *client = v4l2_get_subdevdata(&imx258->sd);
	int ret;

	/* set stream off register */
	ret = imx258_write_reg(imx258, IMX258_REG_MODE_SELECT,
		IMX258_REG_VALUE_08BIT, IMX258_MODE_STANDBY);
	if (ret)
		dev_err(&client->dev, "%s failed to set stream\n", __func__);

	/*
	 * Return success even if it was an error, as there is nothing the
	 * caller can do about it.
	 */
	return 0;
}

static int imx258_set_stream(struct v4l2_subdev *sd, int enable)
{
	struct imx258 *imx258 = to_imx258(sd);
	struct i2c_client *client = v4l2_get_subdevdata(sd);
	int ret = 0;

	mutex_lock(&imx258->mutex);
	if (imx258->streaming == enable) {
		mutex_unlock(&imx258->mutex);
		return 0;
	}

	if (enable) {
		ret = pm_runtime_get_sync(&client->dev);
		if (ret < 0) {
			pm_runtime_put_noidle(&client->dev);
			goto err_unlock;
		}

		/*
		 * Apply default & customized values
		 * and then start streaming.
		 */
		ret = imx258_start_streaming(imx258);
		if (ret)
			goto err_rpm_put;
	} else {
		imx258_stop_streaming(imx258);
		pm_runtime_put(&client->dev);
	}

	imx258->streaming = enable;
	mutex_unlock(&imx258->mutex);

	return ret;

err_rpm_put:
	pm_runtime_put(&client->dev);
err_unlock:
	mutex_unlock(&imx258->mutex);

	return ret;
}

static int __maybe_unused imx258_suspend(struct device *dev)
{
	struct i2c_client *client = to_i2c_client(dev);
	struct v4l2_subdev *sd = i2c_get_clientdata(client);
	struct imx258 *imx258 = to_imx258(sd);

	if (imx258->streaming)
		imx258_stop_streaming(imx258);

	return 0;
}

static int __maybe_unused imx258_resume(struct device *dev)
{
	struct i2c_client *client = to_i2c_client(dev);
	struct v4l2_subdev *sd = i2c_get_clientdata(client);
	struct imx258 *imx258 = to_imx258(sd);
	int ret;

	if (imx258->streaming) {
		ret = imx258_start_streaming(imx258);
		if (ret)
			goto error;
	}

	return 0;

error:
	imx258_stop_streaming(imx258);
	imx258->streaming = 0;
	return ret;
}

/* Verify chip ID */
static int imx258_identify_module(struct imx258 *imx258)
{
	struct i2c_client *client = v4l2_get_subdevdata(&imx258->sd);
	int ret;
	u32 val;

	ret = imx258_read_reg(imx258, IMX258_REG_CHIP_ID,
			      IMX258_REG_VALUE_16BIT, &val);
	if (ret) {
		dev_err(&client->dev, "failed to read chip id %x\n",
			IMX258_CHIP_ID);
		return ret;
	}

	if (val != IMX258_CHIP_ID) {
		dev_err(&client->dev, "chip id mismatch: %x!=%x\n",
			IMX258_CHIP_ID, val);
		return -EIO;
	}

	return 0;
}

static const struct v4l2_subdev_video_ops imx258_video_ops = {
	.s_stream = imx258_set_stream,
};

static const struct v4l2_subdev_pad_ops imx258_pad_ops = {
	.enum_mbus_code = imx258_enum_mbus_code,
	.get_fmt = imx258_get_pad_format,
	.set_fmt = imx258_set_pad_format,
	.enum_frame_size = imx258_enum_frame_size,
};

static const struct v4l2_subdev_ops imx258_subdev_ops = {
	.video = &imx258_video_ops,
	.pad = &imx258_pad_ops,
};

static const struct v4l2_subdev_internal_ops imx258_internal_ops = {
	.open = imx258_open,
};

/* Initialize control handlers */
static int imx258_init_controls(struct imx258 *imx258)
{
	struct i2c_client *client = v4l2_get_subdevdata(&imx258->sd);
	struct v4l2_ctrl_handler *ctrl_hdlr;
	s64 vblank_def;
	s64 vblank_min;
	s64 pixel_rate_min;
	s64 pixel_rate_max;
	int ret;

	ctrl_hdlr = &imx258->ctrl_handler;
	ret = v4l2_ctrl_handler_init(ctrl_hdlr, 8);
	if (ret)
		return ret;

	mutex_init(&imx258->mutex);
	ctrl_hdlr->lock = &imx258->mutex;
	imx258->link_freq = v4l2_ctrl_new_int_menu(ctrl_hdlr,
				&imx258_ctrl_ops,
				V4L2_CID_LINK_FREQ,
				ARRAY_SIZE(link_freq_menu_items) - 1,
				0,
				link_freq_menu_items);

	if (imx258->link_freq)
		imx258->link_freq->flags |= V4L2_CTRL_FLAG_READ_ONLY;

	pixel_rate_max = link_freq_to_pixel_rate(link_freq_menu_items[0]);
	pixel_rate_min = link_freq_to_pixel_rate(link_freq_menu_items[1]);
	/* By default, PIXEL_RATE is read only */
	imx258->pixel_rate = v4l2_ctrl_new_std(ctrl_hdlr, &imx258_ctrl_ops,
				V4L2_CID_PIXEL_RATE,
				pixel_rate_min, pixel_rate_max,
				1, pixel_rate_max);


	vblank_def = imx258->cur_mode->vts_def - imx258->cur_mode->height;
	vblank_min = imx258->cur_mode->vts_min - imx258->cur_mode->height;
	imx258->vblank = v4l2_ctrl_new_std(
				ctrl_hdlr, &imx258_ctrl_ops, V4L2_CID_VBLANK,
				vblank_min,
				IMX258_VTS_MAX - imx258->cur_mode->height, 1,
				vblank_def);

	if (imx258->vblank)
		imx258->vblank->flags |= V4L2_CTRL_FLAG_READ_ONLY;

	imx258->hblank = v4l2_ctrl_new_std(
				ctrl_hdlr, &imx258_ctrl_ops, V4L2_CID_HBLANK,
				IMX258_PPL_DEFAULT - imx258->cur_mode->width,
				IMX258_PPL_DEFAULT - imx258->cur_mode->width,
				1,
				IMX258_PPL_DEFAULT - imx258->cur_mode->width);

	if (imx258->hblank)
		imx258->hblank->flags |= V4L2_CTRL_FLAG_READ_ONLY;

	imx258->exposure = v4l2_ctrl_new_std(
				ctrl_hdlr, &imx258_ctrl_ops,
				V4L2_CID_EXPOSURE, IMX258_EXPOSURE_MIN,
				IMX258_EXPOSURE_MAX, IMX258_EXPOSURE_STEP,
				IMX258_EXPOSURE_DEFAULT);

	v4l2_ctrl_new_std(ctrl_hdlr, &imx258_ctrl_ops, V4L2_CID_ANALOGUE_GAIN,
				IMX258_ANA_GAIN_MIN, IMX258_ANA_GAIN_MAX,
				IMX258_ANA_GAIN_STEP, IMX258_ANA_GAIN_DEFAULT);

	v4l2_ctrl_new_std(ctrl_hdlr, &imx258_ctrl_ops, V4L2_CID_DIGITAL_GAIN,
				IMX258_DGTL_GAIN_MIN, IMX258_DGTL_GAIN_MAX,
				IMX258_DGTL_GAIN_STEP,
				IMX258_DGTL_GAIN_DEFAULT);

	v4l2_ctrl_new_std_menu_items(ctrl_hdlr, &imx258_ctrl_ops,
				V4L2_CID_TEST_PATTERN,
				ARRAY_SIZE(imx258_test_pattern_menu) - 1,
				0, 0, imx258_test_pattern_menu);

	if (ctrl_hdlr->error) {
		ret = ctrl_hdlr->error;
		dev_err(&client->dev, "%s control init failed (%d)\n",
				__func__, ret);
		goto error;
	}

	imx258->sd.ctrl_handler = ctrl_hdlr;

	return 0;

error:
	v4l2_ctrl_handler_free(ctrl_hdlr);
	mutex_destroy(&imx258->mutex);

	return ret;
}

static void imx258_free_controls(struct imx258 *imx258)
{
	v4l2_ctrl_handler_free(imx258->sd.ctrl_handler);
	mutex_destroy(&imx258->mutex);
}

static int imx258_probe(struct i2c_client *client)
{
	struct imx258 *imx258;
	int ret;
	u32 val = 0;

	device_property_read_u32(&client->dev, "clock-frequency", &val);
	if (val != 19200000)
		return -EINVAL;

	/*
	 * Check that the device is mounted upside down. The driver only
	 * supports a single pixel order right now.
	 */
	ret = device_property_read_u32(&client->dev, "rotation", &val);
	if (ret || val != 180)
		return -EINVAL;

	imx258 = devm_kzalloc(&client->dev, sizeof(*imx258), GFP_KERNEL);
	if (!imx258)
		return -ENOMEM;

	/* Initialize subdev */
	v4l2_i2c_subdev_init(&imx258->sd, client, &imx258_subdev_ops);

	/* Check module identity */
	ret = imx258_identify_module(imx258);
	if (ret)
		return ret;

	/* Set default mode to max resolution */
	imx258->cur_mode = &supported_modes[0];

	ret = imx258_init_controls(imx258);
	if (ret)
		return ret;

	/* Initialize subdev */
	imx258->sd.internal_ops = &imx258_internal_ops;
	imx258->sd.flags |= V4L2_SUBDEV_FL_HAS_DEVNODE;
	imx258->sd.entity.function = MEDIA_ENT_F_CAM_SENSOR;

	/* Initialize source pad */
	imx258->pad.flags = MEDIA_PAD_FL_SOURCE;

	ret = media_entity_pads_init(&imx258->sd.entity, 1, &imx258->pad);
	if (ret)
		goto error_handler_free;

	ret = v4l2_async_register_subdev_sensor_common(&imx258->sd);
	if (ret < 0)
		goto error_media_entity;

	pm_runtime_set_active(&client->dev);
	pm_runtime_enable(&client->dev);
	pm_runtime_idle(&client->dev);

	return 0;

error_media_entity:
	media_entity_cleanup(&imx258->sd.entity);

error_handler_free:
	imx258_free_controls(imx258);

	return ret;
}

static int imx258_remove(struct i2c_client *client)
{
	struct v4l2_subdev *sd = i2c_get_clientdata(client);
	struct imx258 *imx258 = to_imx258(sd);

	v4l2_async_unregister_subdev(sd);
	media_entity_cleanup(&sd->entity);
	imx258_free_controls(imx258);

	pm_runtime_disable(&client->dev);
	pm_runtime_set_suspended(&client->dev);

	return 0;
}

static const struct dev_pm_ops imx258_pm_ops = {
	SET_SYSTEM_SLEEP_PM_OPS(imx258_suspend, imx258_resume)
};

#ifdef CONFIG_ACPI
static const struct acpi_device_id imx258_acpi_ids[] = {
	{ "SONY258A" },
	{ /* sentinel */ }
};

MODULE_DEVICE_TABLE(acpi, imx258_acpi_ids);
#endif

static struct i2c_driver imx258_i2c_driver = {
	.driver = {
		.name = "imx258",
		.pm = &imx258_pm_ops,
		.acpi_match_table = ACPI_PTR(imx258_acpi_ids),
	},
	.probe_new = imx258_probe,
	.remove = imx258_remove,
};

module_i2c_driver(imx258_i2c_driver);

MODULE_AUTHOR("Yeh, Andy <andy.yeh@intel.com>");
MODULE_AUTHOR("Chiang, Alan <alanx.chiang@intel.com>");
MODULE_AUTHOR("Chen, Jason <jasonx.z.chen@intel.com>");
MODULE_DESCRIPTION("Sony IMX258 sensor driver");
MODULE_LICENSE("GPL v2");

常用半导体中英对照表2(建议收藏)

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CSDN移动将持续为您优选移动开发的精华内容,共同探讨移动开发的技术热点话题,涵盖移动应用、开发工具、移动游戏及引擎、智能硬件、物联网等方方面面。如果您想投稿、寻求《近匠》报道,或给文章挑错,欢迎发送邮件至tangxy#csdn.net(请把#改成@)。

每每谈到技术,美国谐星Louis C.K.的那句“一切都不可思议,然而却无人在意( everything’s amazing and nobody’s happy)”似乎道出了真谛。不过媒体对iPhone 6s/6s Plus的新功能3D Touch热度不减,着实出乎意料。

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