【新手学习】ARM11 linux下流水灯程序的实现--欢迎高手朋友们指教

yanhong-182997

上周买了块OK6410的开发板，仿照他们给的LED程序写了一个流水灯的程序。感兴趣的朋友们可以多来交流，一起学习。也请坛里的高手朋友多多指教，让我更快进步O(∩_∩)O


//#include?
#include?
#include?
#include?
#include?
#include?
#include?
#include?
#include?
#include?
#include?
#include?
#include?
#include?
#include?

#define?DEVICE_NAME "leds"
#define?LED_MAJOR?231


static?unsigned?long?led_table?[]?=?{
???????S3C64XX_GPM(0),
???????S3C64XX_GPM(1),
???????S3C64XX_GPM(2),
???????S3C64XX_GPM(3),
};

static?unsigned?int?led_cfg_table?[]?=?{
S3C64XX_GPM_OUTPUT(0),
S3C64XX_GPM_OUTPUT(1),
S3C64XX_GPM_OUTPUT(2),
S3C64XX_GPM_OUTPUT(3),
};

static?int?s3c6410_leds_ioctl(
struct?inode?*inode,?
struct?file?*file,?
unsigned?int?cmd,?
unsigned?long?arg)
{
unsigned?long?tmp;
switch(cmd)?{
case?0:
case?1:
if?(arg?>?4)?{
return?-EINVAL;
}
tmp?=?__raw_readl(S3C64XX_GPMDAT);
if(cmd)
tmp?&=?(~(1

yanhong-182997

顶！