static void USART_IRQHandler(USART_TypeDef *USART, IOEventFlags device) {
if (USART_GetFlagStatus(USART, USART_FLAG_FE) != RESET) {
// If we have a framing error, push status info onto the event queue
jshPushIOEvent(
IOEVENTFLAGS_SERIAL_TO_SERIAL_STATUS(device) | EV_SERIAL_STATUS_FRAMING_ERR, 0);
}
if (USART_GetFlagStatus(USART, USART_FLAG_PE) != RESET) {
// If we have a parity error, push status info onto the event queue
jshPushIOEvent(
IOEVENTFLAGS_SERIAL_TO_SERIAL_STATUS(device) | EV_SERIAL_STATUS_PARITY_ERR, 0);
}
if(USART_GetITStatus(USART, USART_IT_RXNE) != RESET) {
/* Clear the USART Receive interrupt */
USART_ClearITPendingBit(USART, USART_IT_RXNE);
/* Read one byte from the receive data register */
jshPushIOCharEvent(device, (char)USART_ReceiveData(USART));
}
/* If overrun condition occurs, clear the ORE flag and recover communication */
if (USART_GetFlagStatus(USART, USART_FLAG_ORE) != RESET)
{
(void)USART_ReceiveData(USART);
}
if(USART_GetITStatus(USART, USART_IT_TXE) != RESET) {
/* If we have other data to send, send it */
int c = jshGetCharToTransmit(device);
if (c >= 0) {
USART_SendData(USART, (uint16_t)c);
} else
USART_ITConfig(USART, USART_IT_TXE, DISABLE);
}
}
void jshInputThread() {
while (isInitialised) {
bool shortSleep = false;
/* Handle the delayed Ctrl-C -> interrupt behaviour (see description by EXEC_CTRL_C's definition) */
if (execInfo.execute & EXEC_CTRL_C_WAIT)
execInfo.execute = (execInfo.execute & ~EXEC_CTRL_C_WAIT) | EXEC_INTERRUPTED;
if (execInfo.execute & EXEC_CTRL_C)
execInfo.execute = (execInfo.execute & ~EXEC_CTRL_C) | EXEC_CTRL_C_WAIT;
// Read from the console
while (kbhit()) {
int ch = getch();
if (ch<0) break;
jshPushIOCharEvent(EV_USBSERIAL, (char)ch);
}
// Read from any open devices - if we have space
if (jshGetEventsUsed() < IOBUFFERMASK/2) {
int i;
for (i=0;i<=EV_DEVICE_MAX;i++) {
if (ioDevices[i]) {
char buf[32];
// read can return -1 (EAGAIN) because O_NONBLOCK is set
int bytes = (int)read(ioDevices[i], buf, sizeof(buf));
if (bytes>0) {
//int j; for (j=0;j<bytes;j++) printf("]] '%c'\r\n", buf[j]);
jshPushIOCharEvents(i, buf, (unsigned int)bytes);
shortSleep = true;
}
}
}
}
// Write any data we have
IOEventFlags device = jshGetDeviceToTransmit();
while (device != EV_NONE) {
char ch = (char)jshGetCharToTransmit(device);
//printf("[[ '%c'\r\n", ch);
if (ioDevices[device]) {
write(ioDevices[device], &ch, 1);
shortSleep = true;
}
device = jshGetDeviceToTransmit();
}
#ifdef SYSFS_GPIO_DIR
Pin pin;
for (pin=0;pin<JSH_PIN_COUNT;pin++)
if (gpioShouldWatch[pin]) {
shortSleep = true;
bool state = jshPinGetValue(pin);
if (state != gpioLastState[pin]) {
jshPushIOEvent(pinToEVEXTI(pin) | (state?EV_EXTI_IS_HIGH:0), jshGetSystemTime());
gpioLastState[pin] = state;
}
}
#endif
usleep(shortSleep ? 1000 : 50000);
}
}
void uart0_event_handle(app_uart_evt_t * p_event) {
if (p_event->evt_type == APP_UART_COMMUNICATION_ERROR) {
jshPushIOEvent(IOEVENTFLAGS_SERIAL_TO_SERIAL_STATUS(EV_SERIAL1) | EV_SERIAL_STATUS_FRAMING_ERR, 0);
} else if (p_event->evt_type == APP_UART_TX_EMPTY) {
int ch = jshGetCharToTransmit(EV_SERIAL1);
if (ch >= 0) {
uartIsSending = true;
while (app_uart_put((uint8_t)ch) != NRF_SUCCESS);
} else
uartIsSending = false;
} else if (p_event->evt_type == APP_UART_DATA) {
uint8_t character;
while (app_uart_get(&character) != NRF_SUCCESS);
jshPushIOCharEvent(EV_SERIAL1, (char) character);
}
}
void jshIdle() {
while (kbhit()) {
jshPushIOCharEvent(EV_USBSERIAL, (char)getch());
}
#ifdef SYSFS_GPIO_DIR
Pin pin;
for (pin=0;pin<JSH_PIN_COUNT;pin++)
if (gpioShouldWatch[pin]) {
bool state = jshPinGetValue(pin);
if (state != gpioLastState[pin]) {
jshPushIOEvent(pinToEVEXTI(pin) | (state?EV_EXTI_IS_HIGH:0), jshGetSystemTime());
gpioLastState[pin] = state;
}
}
#endif
}
