/*
* Fetch data from a mbox.Wait for at most timeout millisecs
* Return -1 if timed out otherwise time spent waiting.
*/
u32_t sys_arch_mbox_fetch(sys_mbox_t mbox, void **data, u32_t timeout)
{
long addr=0L;
int end_time = 0, start_time = 0;
if (timeout) {
start_time = OS_GetTime();
if(OS_GetMailTimed (mbox, &addr,timeout)) {
*data = NULL;
return SYS_ARCH_TIMEOUT;
}
end_time = OS_GetTime();
} else {
OS_GetMail(mbox,&addr);
}
if(data) {
if (addr == (long)&dummy_msg)
*data = NULL;
else
*data=(void*)addr;
//printf("fetch mbox:0x%x = 0x%x\r\n",mbox,*data);
}else{
//printf("fetch mbox:0x%x\r\n",mbox);
}
return (end_time - start_time);
}
void
sys_mbox_fetch(sys_mbox_t mbox, void **msg){
long addr=0L;
OS_GetMail(mbox,&addr);
if(addr)
*msg=(void*)addr
}
/*-----------------------------------------------------------------------------------
* Blocks the thread until a message arrives in the mailbox, but does
* not block the thread longer than "timeout" milliseconds (similar to
* the sys_arch_sem_wait() function). The "msg" argument is a result
* parameter that is set by the function (i.e., by doing "*msg =
* ptr"). The "msg" parameter maybe NULL to indicate that the message
* should be dropped.
*
* The return values are the same as for the sys_arch_sem_wait() function:
* Number of milliseconds spent waiting or SYS_ARCH_TIMEOUT if there was a
* timeout.
*
* Note that a function with a similar name, sys_mbox_fetch(), is
* implemented by lwIP.
*/
u32_t sys_arch_mbox_fetch(sys_mbox_t *mbox, /*@null@*/ /*@out@*/ void **msg, u32_t timeout)
{
void *dummyptr;
void ** tmp_ptr;
portTickType start_time, end_time, elapsed_time;
e_mailbox_t* embox = (e_mailbox_t*)(*mbox);
// assuming 1 tick is 1ms which is the case for now.
start_time = OS_GetTime32();
/* inherited this code from freeRTOS and LWIP must be calling it in this way..*/
if ( msg == NULL )
{
tmp_ptr = &dummyptr;
}
else
{
tmp_ptr = msg;
}
if ( timeout != 0 )
{
// Return values 0 means success,1 means timeout
if (0 == OS_GetMailTimed(&embox->mbox, tmp_ptr, timeout))
{
end_time = OS_GetTime32();
elapsed_time = end_time - start_time;
if ( elapsed_time == 0 )
{
elapsed_time = (portTickType) 1;
}
return ( elapsed_time );
}
else /* timed out blocking for message */
{
if ( msg != NULL )
{
*msg = NULL;
}
return SYS_ARCH_TIMEOUT;
}
}
else /* block forever for a message. */
{
OS_GetMail(&embox->mbox, &(*tmp_ptr));
end_time = OS_GetTime32();
elapsed_time = end_time - start_time;
if ( elapsed_time == 0 )
{
elapsed_time = (portTickType) 1;
}
return ( elapsed_time ); /* return time blocked TBD test */
}
}
/*-------------------------------------------
| Name:OS_GetMail1
| Description:
| Parameters:
| Return Type:
| Comments:
| See:
---------------------------------------------*/
void OS_GetMail1 (OS_MAILBOX* pMB, void* Result){
OS_GetMail (pMB,Result);
}
//---------------------------------------------------------------------------//
// //
//函数：void Key_TP_Task(void) //
//描述：键盘与触摸屏扫描，编辑控件光标闪烁 //
// //
//---------------------------------------------------------------------------//
void Key_TP_Task(void)
{
unsigned char flicker_cnt = 0 ;
char key = 0xFF,last_key = 0xFF, down_cnt = 0, tp_cnt = 0 ;
char rx_char ;
union
{
unsigned int pos[2] ;
char byte[4] ;
}TPoint ;
char event ;
Init_KeyPad() ;
TP_Init() ;
OS_CREATEMB(&MBKeyTP, 1, sizeof(MBKeyTPBuffer),
&MBKeyTPBuffer ) ; // 创建键盘、触摸屏消息邮箱
OS_CREATEMB(&MBRX,1,sizeof(MBRXBuffer),&MBRXBuffer) ; // 创建端口接收邮箱
for(;;)
{
event = 0x00 ;
if(++flicker_cnt>50) // 界面闪烁元素
{
flicker_cnt = 0x00 ;
event = EVENT_FLICKER ;
}
key = ReadKey() ; // 按键扫描
if(key!=last_key&&key!=0xFF)
down_cnt = 0 ;
else if(key!=last_key&&key==0xFF)
{
if(down_cnt>3)
event |= EVENT_KEY_PRESSED ;
}
else if(key==last_key&&key!=0xFF)
if(++down_cnt>4) down_cnt = 4 ;
OS_Use(&SemaSPI) ;
Init_TPSPI() ;
if(!Read_TP_Twice(&TPoint.pos[0],&TPoint.pos[1])) // 触摸屏扫描
{
if(tp_cnt>3)
event |= EVENT_TP_PRESSED ;
tp_cnt = 0 ;
}
else
{
if(++tp_cnt>8) tp_cnt = 8 ;
if(tp_cnt>4)
{
Convert_Pos( TPoint.pos[0], TPoint.pos[1],
&TPoint.pos[0],&TPoint.pos[1] ) ;
event |= EVENT_TP_TOUCHED ;
}
}
OS_Unuse(&SemaSPI) ;
if(OS_GetMessageCnt(&MBRX))
{
OS_GetMail(&MBRX,&rx_char) ;
event |= RX_RECEIVED ;
}
if(event) // 发送系统消息
{
if( !OS_GetSuspendCnt(&LCD_TASK_TCB)
||!OS_GetSuspendCnt(&MENU_OP_TASK_TCB))
{
OS_PutMail1(&MBKeyTP, &event) ;
OS_PutMail1(&MBKeyTP, &last_key) ;
OS_PutMail1(&MBKeyTP, &rx_char) ;
OS_PutMail1(&MBKeyTP, &TPoint.byte[0]) ;
OS_PutMail1(&MBKeyTP, &TPoint.byte[1]) ;
OS_PutMail1(&MBKeyTP, &TPoint.byte[2]) ;
OS_PutMail1(&MBKeyTP, &TPoint.byte[3]) ;
}
}
last_key = key ;
OS_Delay(10) ;
}
}
