RK3288_IMEI
1# vi kernel/driver/char/Makefile
#add by for RK3288 IMEI
obj-$(CONFIG_JIANGDOU_RK_EMMC_IMEI) += rk3288_imei/2# vi kernel/driver/char/Kcong
#add by jiangdou for RK3288 IMEI
source "drivers/char/rk3288_imei/Kconfig"3# vi kernel/driver/char/rk3288_imei/Makefile
#
# Makefile for RK_EMMC_IMEI
#
# SPI testing only for (using spidev driver)
# \file -> spi_test.c
# \version 1.0.0
# \date 2015年12月12日
# \author jiangdou
# Copyright (c) 2015 jiangdou. All Rights Reserved.
obj-$(CONFIG_JIANGDOU_RK_EMMC_IMEI) += rk32-imei.o 4# vi kernel/driver/char/rk3288_imei/Kcong
#
# Kcong for RK_EMMC_IMEI
#
# SPI testing only for (using spidev driver)
# \file -> spi_test.c
# \version 1.0.0
# \date 2015年12月12日
# \author jiangdou
# Copyright (c) 2015 jiangdou. All Rights Reserved.
config JIANGDOU_RK_EMMC_IMEI
tristate "for RK3288 IMEI Driver by jiangdou"
help
Say Y here if you want to support the RK3288_IMEI driver 5# vi kernel/driver/char/rk3288_imei/rk32-imei.c
#include
#include
#include
#include
#include
#include
#include
#include
#include
#include
#include
#include
#include
//linux/ctype.h
extern char GetSNSectorInfo(char * pbuf);
static struct class *rkimei_class;
int imei_read_from_IDB(u8 *imei)
{
int i;
char *tempBuf = kmalloc(512, GFP_KERNEL);
if(imei == NULL)
return -EFAULT;
GetSNSectorInfo(tempBuf);
#if 0
for (i = 450; i < 467; i++) {
//printk("jiangdou_%dst_%02x, ",i, tempBuf[i]);
if(((i+1)%16) == 0) printk("\n");
}
#endif
for (i = 452; i <= 466; i++) {
imei[i-452] = tempBuf[i];
}
kfree(tempBuf);
return 0;
}
int rk3288_imei_idb(u8 *rk32_imei)
{
int i;
int err = 0;
memset(rk32_imei, 0, 15);
err = imei_read_from_IDB(rk32_imei);
if(err)
return -1;
printk("Read the IMEI address from IDB:");
for (i = 0; i < 14; i++)
printk("%2.2x:", rk32_imei[i]);
printk("%2.2x\n", rk32_imei[i]);
return 0;
}
static int jiangdou_imei_drv_open(struct inode *inode, struct file *file)
{
printk("RK3288 MIEI openi\n");
return 0;
}
//ssize_t (*read) (struct file *, char __user *, size_t, loff_t *);
static ssize_t jiangdou_imei_drv_read(struct file *file, char __user *buf, size_t count, loff_t *f_pos)
{
unsigned char *imei_buf;
//ssize_t read_count = imei_count;
int ret = 0;
int i;
unsigned char buff[15];
imei_buf = buff;
unsigned char tmp_buf[16];
memset(imei_buf, 0, 15);
memset(tmp_buf, 0, 15);
ret = rk3288_imei_idb(imei_buf);
if(ret)
return -1;
//printk("Read jiangdouimei from IDB:");
for (i = 0; i < 15; i++){
//tmp_buf[i]= (imei_buf[i] & 0x0f);
//printk("%2.1x:", tmp_buf[i]);
//tmp_buf[i] = tmp_buf[i] + '0';
tmp_buf[i]= imei_buf[i];
}
//printk("\n");
tmp_buf[15] = '\n';
ret = copy_to_user(buf, tmp_buf, sizeof(tmp_buf));
if(ret < 0){
printk("Read jiangdouimei from IDB .......fail....\n");
return -EFAULT;
}
if(*f_pos ==0){
*f_pos += sizeof(tmp_buf);
return sizeof(tmp_buf);
}else
return 0;
return 0;
}
static struct file_operations jiangdou_imei_drv_fops = {
.owner = THIS_MODULE,
.open = jiangdou_imei_drv_open,
.read = jiangdou_imei_drv_read,
};
int major;
static int jiangdou_imei_drv_init(void)
{
printk("by jiangdou for RK3288_IMEI into init\n");
major = register_chrdev(0, "jiangdou_imei", &jiangdou_imei_drv_fops);
rkimei_class = class_create(THIS_MODULE,"jiangdou_imei");
device_create(rkimei_class,NULL,MKDEV(major,0),NULL,"jiangdou_imei");
printk("by jiangdou for RK3288_IMEI register OK\n");
return 0;
}
static void jiangdou_imei_drv_exit(void)
{
unregister_chrdev(major, "jiangdou_imei");
device_destroy(rkimei_class,MKDEV(major,0));
class_destroy(rkimei_class);
printk(KERN_ALERT "RK3288_IMEI unregister\n");
}
module_init(jiangdou_imei_drv_init);
module_exit(jiangdou_imei_drv_exit);
MODULE_AUTHOR("by jiangdou");
MODULE_LICENSE("GPL"); 
7#adb shell TEST
root@rk3288:/# cat /dev/jiangdou_imei
359090044253312
root@rk3288:/# 8#/framework/base/xxx 修改略！