keypad.c

sparc硬件平台上的键盘驱动

#include <stdio.h>
#include "../frame/frm_hd_device.h"
#include " ../kernel/kern_irq.h"
#include "keypad.h"

D_UINT16 drv_get_numb(KEYCODE  *key , int keycode)
{    int   row,col; 
           if((keycode&0x00000080) !=0)
                 key->short_long = 1;  // 是长按键
           else  key->short_long = 0;  // 是短按键
           if((keycode&0x00000060) !=0)   
                 key->push_pop = 1;    // 按键被按下
           else  key->push_pop = 0;    // 按键释放          
           row = keycode&0x00000038;          
           col = keycode&0x00000007; 
           key->key_value = code[row][col];
           printf("the key->key_value is:%c\n",key->key_value);
           printf("row=%d,col=%d\n",row,col);
           KP_STS = 0x00000001;
           return 0;
}

D_UINT8 handler(D_INT32 irq, void *devid, void *dd)
{    
     KEYCODE  *key_val;
     int keycode1 = KP_DAT;
     drv_get_numb(*key_val , keycode1);
     printf("%d%d%d\n",key_val->short_long,key_val->push_pop,key_val->key_value);
     return 0; 
}
   
D_UINT8  drv_keypad_ioctl(D_UINT8 request, void *param)  //修改为重按键形式
{   /* KEYCODE  *key_val;
    *int keycode2 = KP_DAT;*/
     int* pp = (int*)param;
     if(*pp == 0)
     	  { KP_CTRL =0x00000000;
     	  	KP_CTRL = KP_CTRL|0x00015000;  //设定Re_press和时间间隔为150ms(5x30ms);
     	  	}
     kern_enable_irq(6);
     kern_request_irq(6, handler, 0x000F000A, 0);       
      //   get_numb(*key_val , keycode2);
     return TRUE;
} 

D_BOOL drv_keypad_init(d_device *keypad)
{    if(!keypad)
         return FALSE;
     KP_CTRL =0x00000000;
     KP_CTRL =0x00000a00; 
     printf("the initialization is ok\n");
     kern_enable_irq(6);
     kern_request_irq(6, handler, 0x000F000A, 0);
     printf("the irq is opened\n");
     return 0;
} 

void drv_keypad_exit(void)
{   
     KP_CTRL =0x00000000;
     printf("the rtc is exit\n"); 
}
int main()
{    int parm;
	   D_UINT8 reqt;
	   scanf("%d\n",&parm);
	   d_device *key;
	   printf("begin test\n");
	   drv_keypad_init(key);
	   printf("KP_STS = 0x%d\n",KP_STS);
	   drv_keypad_ioctl(reqt , &parm);
	   drv_keypad_exit();
	   printf("over!\n");
	   return 0;
	
}

d_device keypad = {0x0F,0x0A,drv_keypad_init,drv_keypad_exit,NULL,NULL,drv_keypad_ioctl,NULL,NULL,handler,0};