Linux I2C驱动之 OLED支持（无设备树）

使用到的相关设备和环境：

　　（1）JZ2440板子

　　（2）0.96寸的OLED显示屏（I2C接口的）

　　（3）Linux 4.1.10内核（我自己移植后的）

　　（4）交叉编译工具链也是我用crosstool-ng-1.24.0工具弄的

前排提示：（1）可以先了解一下Linux I2C的驱动模型再来看代码好一点。我就懒得发上来了。。

　　　　（2）如果是2.6内核的话，I2C的API有些会不同，你可以百度或者Google一下。

注：目前代码还没有完善，只是搭建了一个大概的框架，大家可根据自己的实际需要来修改。

一、I2C设备部分

　　由于当前还没支持设备树（其实是我还不会。。），所以要动态地添加板级信息。

　　如果你已经在内核中提供好了静态板级信息，或者在设备树中提供好了，可以忽略这一部分。

 1 #include <linux/kernel.h>
 2 #include <linux/module.h>
 3 #include <linux/i2c.h>
 4 
 5 static struct i2c_adapter        *adapter;
 6 static struct i2c_board_info     oled_info;
 7 static struct i2c_client         *oled_client;
 8 
 9 /*
10   0.96 OLED使用的是SSD1306控制器
11   根据数据手册以及硬件电路，可以知道地址是0x3c
12 */
13 static const unsigned short addr_list[] = {0x3c, I2C_CLIENT_END};
14 
15 static int oled_dev_init(void)
16 {
17     struct i2c_adapter *adapter;
18 
19     memset(&oled_info, 0, sizeof(struct i2c_board_info));    
20     strlcpy(oled_info.type, "0.96-oled", I2C_NAME_SIZE);
21     
22     adapter = i2c_get_adapter(0);
23     /*
24         法一：i2c_new_probed_device函数是要检测目标设备是否在总线上
25         法二：i2c_new_device函数默认目标设备已经在总线上
26     */
27     oled_client = i2c_new_probed_device(adapter, &oled_info, addr_list, NULL);
28     i2c_put_adapter(adapter);
29     
30     if (oled_client)
31     {
32         return 0;
33     }
34     else
35     {
36         return -ENODEV;
37     }
38 }
39 
40 static void oled_dev_exit(void)
41 {
42     i2c_unregister_device(oled_client);
43 }
44 
45 module_init(oled_dev_init);
46 module_exit(oled_dev_exit);
47 
48 MODULE_AUTHOR("Ze_Re @_@");
49 MODULE_LICENSE("GPL");

二、I2C驱动部分

　　I2C驱动这里只是简单的测试了一下，可以运行。具体功能大家可以自行添加，当然，最好是做好相关的错误处理。（这里我就直接忽略返回值，默认都执行成功）、

  1 #include <linux/kernel.h>
  2 #include <linux/module.h>
  3 #include <linux/i2c.h>
  4 #include <linux/init.h>
  5 #include <linux/cdev.h>
  6 #include <linux/fs.h>
  7 #include <linux/device.h>
  8 #include <linux/slab.h>
  9 #include <linux/uaccess.h>
 10 
 11 #include "oledfont.h"
 12 
 13 //字符驱动
 14 struct _oled_cdev
 15 {
 16     struct cdev            *cdev;
 17     dev_t                  dev_num;
 18     struct class           *cls; 
 19     struct i2c_client      *client;
 20 
 21     unsigned char        size;
 22     unsigned char        buf[128*8];
 23 };
 24 
 25 static struct _oled_cdev *oled_cdev;
 26 
 27 static int oled_send_byte(unsigned char data, unsigned char cmd)
 28 {
 29     int ret;
 30 
 31     if(cmd)    //我们使用内核文档推荐的SMBus API
 32     {
 33         ret = i2c_smbus_write_byte_data(oled_cdev->client, 0x00, data);
 34     }
 35     else
 36     {
 37         ret = i2c_smbus_write_byte_data(oled_cdev->client, 0x40, data);
 38     }
 39 
 40     if(ret)
 41         return -EIO;
 42 
 43     return 0;
 44 }
 45 
 46 /* 关于OLED这部分代码，是从厂商提供的代码处移植过来，当然还没完全移植过来，有些目前没用到的函数没有移过来 */
 47 
 48 //OLED初始化
 49 static void oled_init(void)
 50 {
 51     oled_send_byte(0xAE, 1);    //display off
 52     oled_send_byte(0x00, 1);    //set low column address
 53     oled_send_byte(0x10, 1);    //set high column address
 54     oled_send_byte(0x40, 1);    //set start line address    
 55     oled_send_byte(0xB0, 1);    //set page address
 56     oled_send_byte(0x81, 1);    //contract control
 57     oled_send_byte(0xFF, 1);    //128   
 58     oled_send_byte(0xA1, 1);    //set segment remap 
 59     oled_send_byte(0xA6, 1);    //normal / reverse
 60     oled_send_byte(0xA8, 1);    //set multiplex ratio(1 to 64)
 61     oled_send_byte(0x3F, 1);    //1/32 duty
 62     oled_send_byte(0xC8, 1);    //Com scan direction
 63     oled_send_byte(0xD3, 1);    //set display offset
 64     oled_send_byte(0x00, 1);
 65     
 66     oled_send_byte(0xD5, 1);    //set osc division
 67     oled_send_byte(0x80, 1);
 68     
 69     oled_send_byte(0xD8, 1);    //set area color mode off
 70     oled_send_byte(0x05, 1);
 71     
 72     oled_send_byte(0xD9, 1);    //Set Pre-Charge Period
 73     oled_send_byte(0xF1, 1);
 74     
 75     oled_send_byte(0xDA, 1);    //set com pin configuartion
 76     oled_send_byte(0x12, 1);
 77     
 78     oled_send_byte(0xDB, 1);    //set Vcomh
 79     oled_send_byte(0x30, 1);
 80     
 81     oled_send_byte(0x8D, 1);    //set charge pump enable
 82     oled_send_byte(0x14, 1);
 83     
 84     oled_send_byte(0xAF, 1);    //turn on oled panel
 85 }
 86 
 87 //OLED清屏
 88 static void oled_clear(void)
 89 {
 90     unsigned char i, n;         
 91     for(i=0; i<8; i++)  
 92     {  
 93         oled_send_byte(0xb0 + i, 1);     //设置页地址（0~7）
 94         oled_send_byte(0x00, 1);         //设置显示位置—列低地址
 95         oled_send_byte(0x10, 1);         //设置显示位置—列高地址     
 96 
 97         for(n=0; n<128; n++)
 98             oled_send_byte(0, 0); 
 99     }
100 }
101 
102 //OLED设置坐标
103 static void oled_set_pos(unsigned int x, unsigned int y)
104 {
105     unsigned char temp = 0;
106 
107     temp = 0xb0 + y;
108     oled_send_byte(temp, 1);
109 
110     temp = ((x & 0xf0) >> 4) |0x10;
111     oled_send_byte(temp, 1);
112 
113     temp = x & 0x0f;
114     oled_send_byte(temp, 1); 
115 }
116 
117 /*
118   OLED显示一个字符
119   x - 横坐标，范围在0-127
120   y - 纵坐标，范围在0-7
121 */
122 static void oled_show_char(unsigned char x, unsigned char y, unsigned char data)
123 {
124     unsigned char c=0,i;    
125     c = data - ' ';    //得到偏移后的值            
126 
127     if(x > 127)
128     {    
129         x = 0;
130         y = y + 2;
131     }
132     
133     if(16 == oled_cdev->size)
134     {
135         oled_set_pos(x, y);    
136         for(i=0; i<8; i++)
137             oled_send_byte(F8X16[c*16 + i], 0);
138         
139         oled_set_pos(x, y+1);
140         for(i=0; i<8; i++)
141             oled_send_byte(F8X16[c*16 + i + 8], 0);
142     }
143     else 
144     {    
145         oled_set_pos(x, y);
146         for(i=0; i<6; i++)
147             oled_send_byte(F6x8[c][i], 0);
148     }
149 }
150 
151 static void oled_show_string(unsigned char x, unsigned char y, unsigned char *buf)
152 {
153     unsigned char i = 0;
154     while (buf[i] != '\0')
155     {        
156         oled_show_char(x, y, buf[i]);
157         x += 8;
158         if(x > 120)
159         {    
160             x = 0;
161             y += 2;
162         }
163         i++;
164     }
165 }
166 
167 /* 这部分是字符驱动代码 */
168 
169 int cdev_open(struct inode *inode, struct file *file)
170 {
171     oled_init();
172     oled_clear();
173     
174     return 0;
175 }
176 
177 int cdev_release(struct inode *inode, struct file *file)
178 {
179     oled_clear();
180     return 0;
181 }
182 
183 ssize_t cdev_read(struct file *file, char __user *buf, size_t count, loff_t *position)
184 {
185     return 0;
186 }
187 
188 ssize_t cdev_write(struct file *file, const char __user *buf, size_t count, loff_t *position)
189 {
190     oled_clear();
191 
192     copy_from_user(oled_cdev->buf, buf, count);
193 
194     //待完善，这里只用于测试
195     oled_show_string(0, 0, oled_cdev->buf);
196     //oled_show_string(6, 3, "0.96' OLED TEST");
197 
198     return 0;
199 }
200 
201 //待完善，可用来控制OLED相关的显示参数，如字符大小
202 long cdev_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
203 {
204     return 0;
205 }
206 
207 struct file_operations cdev_fops = 
208 {
209     .owner                 = THIS_MODULE,
210     .open                  = cdev_open,
211     .release               = cdev_release,
212     .read                  = cdev_read,
213     .write                 = cdev_write,
214     .unlocked_ioctl        = cdev_ioctl,
215 };
216 
217 static int oled_probe(struct i2c_client *client, const struct i2c_device_id *id)
218 {
219     oled_cdev = kzalloc(sizeof(struct _oled_cdev), GFP_KERNEL);
220 
221     oled_cdev->client = client;
222     oled_cdev->size = 16;
223     
224     oled_cdev->cdev = cdev_alloc();
225     cdev_init(oled_cdev->cdev, &cdev_fops);
226     oled_cdev->cdev->owner = THIS_MODULE;
227 
228     alloc_chrdev_region(&oled_cdev->dev_num, 0, 1, "oled");
229     cdev_add(oled_cdev->cdev, oled_cdev->dev_num, 1);
230 
231     //创建设备节点 /dev/oled
232     oled_cdev->cls = class_create(THIS_MODULE, "oled_cls");
233     device_create(oled_cdev->cls, NULL, oled_cdev->dev_num, NULL, "oled");
234     
235     return 0;
236 }
237 
238 static int oled_remove(struct i2c_client *client)
239 {
240     device_destroy(oled_cdev->cls, oled_cdev->dev_num);
241     class_destroy(oled_cdev->cls);
242     cdev_del(oled_cdev->cdev);
243     unregister_chrdev_region(oled_cdev->dev_num, 1);
244     kfree(oled_cdev);
245     return 0;
246 }
247 
248 static const struct i2c_device_id oled_id_table[] = {
249     { "0.96-oled", 0 },
250     {}
251 };
252 
253 static struct i2c_driver oled_driver = {
254     .driver = {
255         .name      = "oled",
256         .owner     = THIS_MODULE,
257     },
258     .probe         = oled_probe,
259     .remove        = oled_remove,
260     .id_table      = oled_id_table,
261 };
262 
263 static int oled_drv_init(void)
264 {
265     i2c_add_driver(&oled_driver);
266     return 0;
267 }
268 
269 static void oled_drv_exit(void)
270 {
271     i2c_del_driver(&oled_driver);
272 }
273 
274 module_init(oled_drv_init);
275 module_exit(oled_drv_exit);
276 
278 MODULE_AUTHOR("Ze_Re @_@");
279 MODULE_LICENSE("GPL");

三、应用层测试代码

#include <stdio.h>
#include <string.h>
#include <unistd.h>
#include <fcntl.h>
#include <sys/ioctl.h>

// usage: ./i2c_test <string>

#define OLED_DRV_NAME "/dev/oled"

int main(int argc, char *argv[])
{
    int fd;
    int ret;

    char data[128];

    if(argc != 2)
    {
        printf("Usage: %s <string>", argv[0]);
        return -1;    
    }
    
    strncpy(data, argv[1], 128);

    fd = open(OLED_DRV_NAME, O_RDWR);

    write(fd, data, 128);

    /* 这里要死循环，之前一直黑屏，还以为驱动有问题，后来才发现，是这里有问题。。 */
    while(1);    
    
    close(fd);
    return 0;
}

四、Makefile

KERN_DIR = /home/zepunt/share/linux-4.1.10

all:
    make -C $(KERN_DIR) M=`pwd` modules 
    arm-zepunt-linux-gnueabi-gcc -o i2c_test i2c_test.c

clean:
    make -C $(KERN_DIR) M=`pwd` modules clean
    rm -rf modules.order
    rm -rf i2c_test

obj-m += i2c_dev.o i2c_drv.o

五、字库头文件（不完整版）

　　没有中文支持哈。。被我删了。。

#ifndef __OLEDFONT_H
#define __OLEDFONT_H        

//常用ASCII表
//偏移量32
//ASCII字符集
//偏移量32
//大小:12*6

/************************************6*8的点阵************************************/
const unsigned char F6x8[][6] =        
{
0x00, 0x00, 0x00, 0x00, 0x00, 0x00,// sp
0x00, 0x00, 0x00, 0x2f, 0x00, 0x00,// !
0x00, 0x00, 0x07, 0x00, 0x07, 0x00,// "
0x00, 0x14, 0x7f, 0x14, 0x7f, 0x14,// #
0x00, 0x24, 0x2a, 0x7f, 0x2a, 0x12,// $
0x00, 0x62, 0x64, 0x08, 0x13, 0x23,// %
0x00, 0x36, 0x49, 0x55, 0x22, 0x50,// &
0x00, 0x00, 0x05, 0x03, 0x00, 0x00,// '
0x00, 0x00, 0x1c, 0x22, 0x41, 0x00,// (
0x00, 0x00, 0x41, 0x22, 0x1c, 0x00,// )
0x00, 0x14, 0x08, 0x3E, 0x08, 0x14,// *
0x00, 0x08, 0x08, 0x3E, 0x08, 0x08,// +
0x00, 0x00, 0x00, 0xA0, 0x60, 0x00,// ,
0x00, 0x08, 0x08, 0x08, 0x08, 0x08,// -
0x00, 0x00, 0x60, 0x60, 0x00, 0x00,// .
0x00, 0x20, 0x10, 0x08, 0x04, 0x02,// /
0x00, 0x3E, 0x51, 0x49, 0x45, 0x3E,// 0
0x00, 0x00, 0x42, 0x7F, 0x40, 0x00,// 1
0x00, 0x42, 0x61, 0x51, 0x49, 0x46,// 2
0x00, 0x21, 0x41, 0x45, 0x4B, 0x31,// 3
0x00, 0x18, 0x14, 0x12, 0x7F, 0x10,// 4
0x00, 0x27, 0x45, 0x45, 0x45, 0x39,// 5
0x00, 0x3C, 0x4A, 0x49, 0x49, 0x30,// 6
0x00, 0x01, 0x71, 0x09, 0x05, 0x03,// 7
0x00, 0x36, 0x49, 0x49, 0x49, 0x36,// 8
0x00, 0x06, 0x49, 0x49, 0x29, 0x1E,// 9
0x00, 0x00, 0x36, 0x36, 0x00, 0x00,// :
0x00, 0x00, 0x56, 0x36, 0x00, 0x00,// ;
0x00, 0x08, 0x14, 0x22, 0x41, 0x00,// <
0x00, 0x14, 0x14, 0x14, 0x14, 0x14,// =
0x00, 0x00, 0x41, 0x22, 0x14, 0x08,// >
0x00, 0x02, 0x01, 0x51, 0x09, 0x06,// ?
0x00, 0x32, 0x49, 0x59, 0x51, 0x3E,// @
0x00, 0x7C, 0x12, 0x11, 0x12, 0x7C,// A
0x00, 0x7F, 0x49, 0x49, 0x49, 0x36,// B
0x00, 0x3E, 0x41, 0x41, 0x41, 0x22,// C
0x00, 0x7F, 0x41, 0x41, 0x22, 0x1C,// D
0x00, 0x7F, 0x49, 0x49, 0x49, 0x41,// E
0x00, 0x7F, 0x09, 0x09, 0x09, 0x01,// F
0x00, 0x3E, 0x41, 0x49, 0x49, 0x7A,// G
0x00, 0x7F, 0x08, 0x08, 0x08, 0x7F,// H
0x00, 0x00, 0x41, 0x7F, 0x41, 0x00,// I
0x00, 0x20, 0x40, 0x41, 0x3F, 0x01,// J
0x00, 0x7F, 0x08, 0x14, 0x22, 0x41,// K
0x00, 0x7F, 0x40, 0x40, 0x40, 0x40,// L
0x00, 0x7F, 0x02, 0x0C, 0x02, 0x7F,// M
0x00, 0x7F, 0x04, 0x08, 0x10, 0x7F,// N
0x00, 0x3E, 0x41, 0x41, 0x41, 0x3E,// O
0x00, 0x7F, 0x09, 0x09, 0x09, 0x06,// P
0x00, 0x3E, 0x41, 0x51, 0x21, 0x5E,// Q
0x00, 0x7F, 0x09, 0x19, 0x29, 0x46,// R
0x00, 0x46, 0x49, 0x49, 0x49, 0x31,// S
0x00, 0x01, 0x01, 0x7F, 0x01, 0x01,// T
0x00, 0x3F, 0x40, 0x40, 0x40, 0x3F,// U
0x00, 0x1F, 0x20, 0x40, 0x20, 0x1F,// V
0x00, 0x3F, 0x40, 0x38, 0x40, 0x3F,// W
0x00, 0x63, 0x14, 0x08, 0x14, 0x63,// X
0x00, 0x07, 0x08, 0x70, 0x08, 0x07,// Y
0x00, 0x61, 0x51, 0x49, 0x45, 0x43,// Z
0x00, 0x00, 0x7F, 0x41, 0x41, 0x00,// [
0x00, 0x55, 0x2A, 0x55, 0x2A, 0x55,// 55
0x00, 0x00, 0x41, 0x41, 0x7F, 0x00,// ]
0x00, 0x04, 0x02, 0x01, 0x02, 0x04,// ^
0x00, 0x40, 0x40, 0x40, 0x40, 0x40,// _
0x00, 0x00, 0x01, 0x02, 0x04, 0x00,// '
0x00, 0x20, 0x54, 0x54, 0x54, 0x78,// a
0x00, 0x7F, 0x48, 0x44, 0x44, 0x38,// b
0x00, 0x38, 0x44, 0x44, 0x44, 0x20,// c
0x00, 0x38, 0x44, 0x44, 0x48, 0x7F,// d
0x00, 0x38, 0x54, 0x54, 0x54, 0x18,// e
0x00, 0x08, 0x7E, 0x09, 0x01, 0x02,// f
0x00, 0x18, 0xA4, 0xA4, 0xA4, 0x7C,// g
0x00, 0x7F, 0x08, 0x04, 0x04, 0x78,// h
0x00, 0x00, 0x44, 0x7D, 0x40, 0x00,// i
0x00, 0x40, 0x80, 0x84, 0x7D, 0x00,// j
0x00, 0x7F, 0x10, 0x28, 0x44, 0x00,// k
0x00, 0x00, 0x41, 0x7F, 0x40, 0x00,// l
0x00, 0x7C, 0x04, 0x18, 0x04, 0x78,// m
0x00, 0x7C, 0x08, 0x04, 0x04, 0x78,// n
0x00, 0x38, 0x44, 0x44, 0x44, 0x38,// o
0x00, 0xFC, 0x24, 0x24, 0x24, 0x18,// p
0x00, 0x18, 0x24, 0x24, 0x18, 0xFC,// q
0x00, 0x7C, 0x08, 0x04, 0x04, 0x08,// r
0x00, 0x48, 0x54, 0x54, 0x54, 0x20,// s
0x00, 0x04, 0x3F, 0x44, 0x40, 0x20,// t
0x00, 0x3C, 0x40, 0x40, 0x20, 0x7C,// u
0x00, 0x1C, 0x20, 0x40, 0x20, 0x1C,// v
0x00, 0x3C, 0x40, 0x30, 0x40, 0x3C,// w
0x00, 0x44, 0x28, 0x10, 0x28, 0x44,// x
0x00, 0x1C, 0xA0, 0xA0, 0xA0, 0x7C,// y
0x00, 0x44, 0x64, 0x54, 0x4C, 0x44,// z
0x14, 0x14, 0x14, 0x14, 0x14, 0x14,// horiz lines
};

/****************************************8*16的点阵************************************/
const unsigned char F8X16[]=      
{
  0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,// 0
  0x00,0x00,0x00,0xF8,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x33,0x30,0x00,0x00,0x00,//! 1
  0x00,0x10,0x0C,0x06,0x10,0x0C,0x06,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,//" 2
  0x40,0xC0,0x78,0x40,0xC0,0x78,0x40,0x00,0x04,0x3F,0x04,0x04,0x3F,0x04,0x04,0x00,//# 3
  0x00,0x70,0x88,0xFC,0x08,0x30,0x00,0x00,0x00,0x18,0x20,0xFF,0x21,0x1E,0x00,0x00,//$ 4
  0xF0,0x08,0xF0,0x00,0xE0,0x18,0x00,0x00,0x00,0x21,0x1C,0x03,0x1E,0x21,0x1E,0x00,//% 5
  0x00,0xF0,0x08,0x88,0x70,0x00,0x00,0x00,0x1E,0x21,0x23,0x24,0x19,0x27,0x21,0x10,//& 6
  0x10,0x16,0x0E,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,//' 7
  0x00,0x00,0x00,0xE0,0x18,0x04,0x02,0x00,0x00,0x00,0x00,0x07,0x18,0x20,0x40,0x00,//( 8
  0x00,0x02,0x04,0x18,0xE0,0x00,0x00,0x00,0x00,0x40,0x20,0x18,0x07,0x00,0x00,0x00,//) 9
  0x40,0x40,0x80,0xF0,0x80,0x40,0x40,0x00,0x02,0x02,0x01,0x0F,0x01,0x02,0x02,0x00,//* 10
  0x00,0x00,0x00,0xF0,0x00,0x00,0x00,0x00,0x01,0x01,0x01,0x1F,0x01,0x01,0x01,0x00,//+ 11
  0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x80,0xB0,0x70,0x00,0x00,0x00,0x00,0x00,//, 12
  0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x01,0x01,0x01,0x01,0x01,0x01,0x01,//- 13
  0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x30,0x30,0x00,0x00,0x00,0x00,0x00,//. 14
  0x00,0x00,0x00,0x00,0x80,0x60,0x18,0x04,0x00,0x60,0x18,0x06,0x01,0x00,0x00,0x00,/// 15
  0x00,0xE0,0x10,0x08,0x08,0x10,0xE0,0x00,0x00,0x0F,0x10,0x20,0x20,0x10,0x0F,0x00,//0 16
  0x00,0x10,0x10,0xF8,0x00,0x00,0x00,0x00,0x00,0x20,0x20,0x3F,0x20,0x20,0x00,0x00,//1 17
  0x00,0x70,0x08,0x08,0x08,0x88,0x70,0x00,0x00,0x30,0x28,0x24,0x22,0x21,0x30,0x00,//2 18
  0x00,0x30,0x08,0x88,0x88,0x48,0x30,0x00,0x00,0x18,0x20,0x20,0x20,0x11,0x0E,0x00,//3 19
  0x00,0x00,0xC0,0x20,0x10,0xF8,0x00,0x00,0x00,0x07,0x04,0x24,0x24,0x3F,0x24,0x00,//4 20
  0x00,0xF8,0x08,0x88,0x88,0x08,0x08,0x00,0x00,0x19,0x21,0x20,0x20,0x11,0x0E,0x00,//5 21
  0x00,0xE0,0x10,0x88,0x88,0x18,0x00,0x00,0x00,0x0F,0x11,0x20,0x20,0x11,0x0E,0x00,//6 22
  0x00,0x38,0x08,0x08,0xC8,0x38,0x08,0x00,0x00,0x00,0x00,0x3F,0x00,0x00,0x00,0x00,//7 23
  0x00,0x70,0x88,0x08,0x08,0x88,0x70,0x00,0x00,0x1C,0x22,0x21,0x21,0x22,0x1C,0x00,//8 24
  0x00,0xE0,0x10,0x08,0x08,0x10,0xE0,0x00,0x00,0x00,0x31,0x22,0x22,0x11,0x0F,0x00,//9 25
  0x00,0x00,0x00,0xC0,0xC0,0x00,0x00,0x00,0x00,0x00,0x00,0x30,0x30,0x00,0x00,0x00,//: 26
  0x00,0x00,0x00,0x80,0x00,0x00,0x00,0x00,0x00,0x00,0x80,0x60,0x00,0x00,0x00,0x00,//; 27
  0x00,0x00,0x80,0x40,0x20,0x10,0x08,0x00,0x00,0x01,0x02,0x04,0x08,0x10,0x20,0x00,//< 28
  0x40,0x40,0x40,0x40,0x40,0x40,0x40,0x00,0x04,0x04,0x04,0x04,0x04,0x04,0x04,0x00,//= 29
  0x00,0x08,0x10,0x20,0x40,0x80,0x00,0x00,0x00,0x20,0x10,0x08,0x04,0x02,0x01,0x00,//> 30
  0x00,0x70,0x48,0x08,0x08,0x08,0xF0,0x00,0x00,0x00,0x00,0x30,0x36,0x01,0x00,0x00,//? 31
  0xC0,0x30,0xC8,0x28,0xE8,0x10,0xE0,0x00,0x07,0x18,0x27,0x24,0x23,0x14,0x0B,0x00,//@ 32
  0x00,0x00,0xC0,0x38,0xE0,0x00,0x00,0x00,0x20,0x3C,0x23,0x02,0x02,0x27,0x38,0x20,//A 33
  0x08,0xF8,0x88,0x88,0x88,0x70,0x00,0x00,0x20,0x3F,0x20,0x20,0x20,0x11,0x0E,0x00,//B 34
  0xC0,0x30,0x08,0x08,0x08,0x08,0x38,0x00,0x07,0x18,0x20,0x20,0x20,0x10,0x08,0x00,//C 35
  0x08,0xF8,0x08,0x08,0x08,0x10,0xE0,0x00,0x20,0x3F,0x20,0x20,0x20,0x10,0x0F,0x00,//D 36
  0x08,0xF8,0x88,0x88,0xE8,0x08,0x10,0x00,0x20,0x3F,0x20,0x20,0x23,0x20,0x18,0x00,//E 37
  0x08,0xF8,0x88,0x88,0xE8,0x08,0x10,0x00,0x20,0x3F,0x20,0x00,0x03,0x00,0x00,0x00,//F 38
  0xC0,0x30,0x08,0x08,0x08,0x38,0x00,0x00,0x07,0x18,0x20,0x20,0x22,0x1E,0x02,0x00,//G 39
  0x08,0xF8,0x08,0x00,0x00,0x08,0xF8,0x08,0x20,0x3F,0x21,0x01,0x01,0x21,0x3F,0x20,//H 40
  0x00,0x08,0x08,0xF8,0x08,0x08,0x00,0x00,0x00,0x20,0x20,0x3F,0x20,0x20,0x00,0x00,//I 41
  0x00,0x00,0x08,0x08,0xF8,0x08,0x08,0x00,0xC0,0x80,0x80,0x80,0x7F,0x00,0x00,0x00,//J 42
  0x08,0xF8,0x88,0xC0,0x28,0x18,0x08,0x00,0x20,0x3F,0x20,0x01,0x26,0x38,0x20,0x00,//K 43
  0x08,0xF8,0x08,0x00,0x00,0x00,0x00,0x00,0x20,0x3F,0x20,0x20,0x20,0x20,0x30,0x00,//L 44
  0x08,0xF8,0xF8,0x00,0xF8,0xF8,0x08,0x00,0x20,0x3F,0x00,0x3F,0x00,0x3F,0x20,0x00,//M 45
  0x08,0xF8,0x30,0xC0,0x00,0x08,0xF8,0x08,0x20,0x3F,0x20,0x00,0x07,0x18,0x3F,0x00,//N 46
  0xE0,0x10,0x08,0x08,0x08,0x10,0xE0,0x00,0x0F,0x10,0x20,0x20,0x20,0x10,0x0F,0x00,//O 47
  0x08,0xF8,0x08,0x08,0x08,0x08,0xF0,0x00,0x20,0x3F,0x21,0x01,0x01,0x01,0x00,0x00,//P 48
  0xE0,0x10,0x08,0x08,0x08,0x10,0xE0,0x00,0x0F,0x18,0x24,0x24,0x38,0x50,0x4F,0x00,//Q 49
  0x08,0xF8,0x88,0x88,0x88,0x88,0x70,0x00,0x20,0x3F,0x20,0x00,0x03,0x0C,0x30,0x20,//R 50
  0x00,0x70,0x88,0x08,0x08,0x08,0x38,0x00,0x00,0x38,0x20,0x21,0x21,0x22,0x1C,0x00,//S 51
  0x18,0x08,0x08,0xF8,0x08,0x08,0x18,0x00,0x00,0x00,0x20,0x3F,0x20,0x00,0x00,0x00,//T 52
  0x08,0xF8,0x08,0x00,0x00,0x08,0xF8,0x08,0x00,0x1F,0x20,0x20,0x20,0x20,0x1F,0x00,//U 53
  0x08,0x78,0x88,0x00,0x00,0xC8,0x38,0x08,0x00,0x00,0x07,0x38,0x0E,0x01,0x00,0x00,//V 54
  0xF8,0x08,0x00,0xF8,0x00,0x08,0xF8,0x00,0x03,0x3C,0x07,0x00,0x07,0x3C,0x03,0x00,//W 55
  0x08,0x18,0x68,0x80,0x80,0x68,0x18,0x08,0x20,0x30,0x2C,0x03,0x03,0x2C,0x30,0x20,//X 56
  0x08,0x38,0xC8,0x00,0xC8,0x38,0x08,0x00,0x00,0x00,0x20,0x3F,0x20,0x00,0x00,0x00,//Y 57
  0x10,0x08,0x08,0x08,0xC8,0x38,0x08,0x00,0x20,0x38,0x26,0x21,0x20,0x20,0x18,0x00,//Z 58
  0x00,0x00,0x00,0xFE,0x02,0x02,0x02,0x00,0x00,0x00,0x00,0x7F,0x40,0x40,0x40,0x00,//[ 59
  0x00,0x0C,0x30,0xC0,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x01,0x06,0x38,0xC0,0x00,//\ 60
  0x00,0x02,0x02,0x02,0xFE,0x00,0x00,0x00,0x00,0x40,0x40,0x40,0x7F,0x00,0x00,0x00,//] 61
  0x00,0x00,0x04,0x02,0x02,0x02,0x04,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,//^ 62
  0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x80,0x80,0x80,0x80,0x80,0x80,0x80,0x80,//_ 63
  0x00,0x02,0x02,0x04,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,//` 64
  0x00,0x00,0x80,0x80,0x80,0x80,0x00,0x00,0x00,0x19,0x24,0x22,0x22,0x22,0x3F,0x20,//a 65
  0x08,0xF8,0x00,0x80,0x80,0x00,0x00,0x00,0x00,0x3F,0x11,0x20,0x20,0x11,0x0E,0x00,//b 66
  0x00,0x00,0x00,0x80,0x80,0x80,0x00,0x00,0x00,0x0E,0x11,0x20,0x20,0x20,0x11,0x00,//c 67
  0x00,0x00,0x00,0x80,0x80,0x88,0xF8,0x00,0x00,0x0E,0x11,0x20,0x20,0x10,0x3F,0x20,//d 68
  0x00,0x00,0x80,0x80,0x80,0x80,0x00,0x00,0x00,0x1F,0x22,0x22,0x22,0x22,0x13,0x00,//e 69
  0x00,0x80,0x80,0xF0,0x88,0x88,0x88,0x18,0x00,0x20,0x20,0x3F,0x20,0x20,0x00,0x00,//f 70
  0x00,0x00,0x80,0x80,0x80,0x80,0x80,0x00,0x00,0x6B,0x94,0x94,0x94,0x93,0x60,0x00,//g 71
  0x08,0xF8,0x00,0x80,0x80,0x80,0x00,0x00,0x20,0x3F,0x21,0x00,0x00,0x20,0x3F,0x20,//h 72
  0x00,0x80,0x98,0x98,0x00,0x00,0x00,0x00,0x00,0x20,0x20,0x3F,0x20,0x20,0x00,0x00,//i 73
  0x00,0x00,0x00,0x80,0x98,0x98,0x00,0x00,0x00,0xC0,0x80,0x80,0x80,0x7F,0x00,0x00,//j 74
  0x08,0xF8,0x00,0x00,0x80,0x80,0x80,0x00,0x20,0x3F,0x24,0x02,0x2D,0x30,0x20,0x00,//k 75
  0x00,0x08,0x08,0xF8,0x00,0x00,0x00,0x00,0x00,0x20,0x20,0x3F,0x20,0x20,0x00,0x00,//l 76
  0x80,0x80,0x80,0x80,0x80,0x80,0x80,0x00,0x20,0x3F,0x20,0x00,0x3F,0x20,0x00,0x3F,//m 77
  0x80,0x80,0x00,0x80,0x80,0x80,0x00,0x00,0x20,0x3F,0x21,0x00,0x00,0x20,0x3F,0x20,//n 78
  0x00,0x00,0x80,0x80,0x80,0x80,0x00,0x00,0x00,0x1F,0x20,0x20,0x20,0x20,0x1F,0x00,//o 79
  0x80,0x80,0x00,0x80,0x80,0x00,0x00,0x00,0x80,0xFF,0xA1,0x20,0x20,0x11,0x0E,0x00,//p 80
  0x00,0x00,0x00,0x80,0x80,0x80,0x80,0x00,0x00,0x0E,0x11,0x20,0x20,0xA0,0xFF,0x80,//q 81
  0x80,0x80,0x80,0x00,0x80,0x80,0x80,0x00,0x20,0x20,0x3F,0x21,0x20,0x00,0x01,0x00,//r 82
  0x00,0x00,0x80,0x80,0x80,0x80,0x80,0x00,0x00,0x33,0x24,0x24,0x24,0x24,0x19,0x00,//s 83
  0x00,0x80,0x80,0xE0,0x80,0x80,0x00,0x00,0x00,0x00,0x00,0x1F,0x20,0x20,0x00,0x00,//t 84
  0x80,0x80,0x00,0x00,0x00,0x80,0x80,0x00,0x00,0x1F,0x20,0x20,0x20,0x10,0x3F,0x20,//u 85
  0x80,0x80,0x80,0x00,0x00,0x80,0x80,0x80,0x00,0x01,0x0E,0x30,0x08,0x06,0x01,0x00,//v 86
  0x80,0x80,0x00,0x80,0x00,0x80,0x80,0x80,0x0F,0x30,0x0C,0x03,0x0C,0x30,0x0F,0x00,//w 87
  0x00,0x80,0x80,0x00,0x80,0x80,0x80,0x00,0x00,0x20,0x31,0x2E,0x0E,0x31,0x20,0x00,//x 88
  0x80,0x80,0x80,0x00,0x00,0x80,0x80,0x80,0x80,0x81,0x8E,0x70,0x18,0x06,0x01,0x00,//y 89
  0x00,0x80,0x80,0x80,0x80,0x80,0x80,0x00,0x00,0x21,0x30,0x2C,0x22,0x21,0x30,0x00,//z 90
  0x00,0x00,0x00,0x00,0x80,0x7C,0x02,0x02,0x00,0x00,0x00,0x00,0x00,0x3F,0x40,0x40,//{ 91
  0x00,0x00,0x00,0x00,0xFF,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xFF,0x00,0x00,0x00,//| 92
  0x00,0x02,0x02,0x7C,0x80,0x00,0x00,0x00,0x00,0x40,0x40,0x3F,0x00,0x00,0x00,0x00,//} 93
  0x00,0x06,0x01,0x01,0x02,0x02,0x04,0x04,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,//~ 94
};
  
#endif

posted @ 2020-04-23 14:27 Recca 阅读(1715) 评论(0) 编辑收藏举报

刷新页面返回顶部

Recca

Linux I2C驱动 之 OLED支持（无设备树）

公告

Linux I2C驱动之 OLED支持（无设备树）