unsigned long USART0IntHandler(void *pvCBData,
unsigned long ulEvent,
unsigned long ulMsgParam,
void *pvMsgData)
{
char receive_byte;
if (Contiki_Sem != NULL){
if ((ulEvent & UART_EVENT_RX) == UART_EVENT_RX)
{
receive_byte = xHWREGB(UART0_BASE + UART_012_D);
if (slip_input_byte(receive_byte) == 1) OSSemPost(Contiki_Sem);
buffer_rcvd[buffer_rcvd_i++]=receive_byte;
#if 0
if (OSQueuePost(Serial0, receive_byte) == BUFFER_UNDERRUN)
{
// Problema: Estouro de buffer
OSQueueClean(Serial0);
}
#endif
}
if ((ulEvent & UART_EVENT_TC) == UART_EVENT_TC)
{
if ((xHWREGB(UART0_BASE + UART_012_C2) & UART_EVENT_TC) == UART_EVENT_TC)
{
UARTIntDisable(UART0_BASE, UART_INT_TC);
(void)OSSemPost(SerialTX0);
}
}
// ************************
// Interrupt Exit
// ************************
OS_INT_EXIT_EXT();
// ************************
}else{
if ((ulEvent & UART_EVENT_RX) == UART_EVENT_RX)
{
receive_byte = xHWREGB(UART0_BASE + UART_012_D);
}
if ((ulEvent & UART_EVENT_TC) == UART_EVENT_TC)
{
if ((xHWREGB(UART0_BASE + UART_012_C2) & UART_EVENT_TC) == UART_EVENT_TC)
{
UARTIntDisable(UART0_BASE, UART_INT_TC);
}
}
}
}
void Keyboard_Handler(void)
{
// task setup
INT8U key = NO_KEY;
INT32U read = 0;
ButtonsInit();
if (OSSemCreate(0,&sKeyboard) != ALLOC_EVENT_OK)
{
// Oh Oh
// Não deveria entrar aqui !!!
while(1){};
};
if (OSQueueCreate(64, &qKeyboard) != ALLOC_EVENT_OK)
{
// Oh Oh
// Não deveria entrar aqui !!!
while(1){};
};
// task main loop
for (;;)
{
// Wait for a keyboard interrupt
OSSemPend (sKeyboard,0);
DelayTask(50);
read = GPIOPinRead(BUTTONS_GPIO_BASE, ALL_BUTTONS);
// Find out which key was pressed
key = (INT8U)read;
// Copy the key to the keyboard buffer
if(key != NO_KEY)
{
if (OSQueuePost(qKeyboard, key) == BUFFER_UNDERRUN)
{
// Buffer overflow
OSQueueClean(qKeyboard);
}
}
key = NO_KEY;
DelayTask(200);
// Enable interrupt to the next key detection
GPIOIntEnable(BUTTONS_GPIO_BASE, ALL_BUTTONS);
}
}
void uart2_rx(void)
{
// ************************
// Interrupt Entry
// ************************
#if __GNUC__
OS_SAVE_ISR();
#endif
OS_INT_ENTER();
// Tratamento da interrupção
(void) SCI2S1; /* Leitura do registrador SCIxS1 para analisar o estado da transmissão */
(void) SCI2C3; /* Leitura do registrador SCIxC3 para limpar o bit de paridade */
receive_byte2 = SCI2D; /* Leitura dos dados recebidos */
#if (NESTING_INT == 1)
OS_ENABLE_NESTING();
#endif
if (OSQueuePost(Serial2, receive_byte2) == BUFFER_UNDERRUN)
{
// Problema: Estouro de buffer
OSQueueClean(Serial2);
}
// ************************
// Interrupt Exit
// ************************
OS_INT_EXIT();
// ************************
#if __GNUC__
OS_RESTORE_ISR();
#endif
}