// Initialise serial cable and run one time setup
bool application_init(void)
{
char *portname = "/dev/ttyUSB0";
fd = open (portname, O_RDWR | O_NOCTTY | O_SYNC);
if (fd < 0)
{
NABTO_LOG_INFO(("error %d opening %s: %s\n", errno, portname, strerror (errno)));
return 0;
}
else {
NABTO_LOG_INFO(("Opening %s: %s\n", portname, strerror (errno)));
}
set_interface_attribs (fd, B115200, 0); // set speed to 115,200 bps, 8n1 (no parity)
set_blocking (fd, 0); // set no blocking
// Wake Roomba
setRTS(fd, 0);
usleep(100000); //0.1 sec
setRTS(fd, 1);
sleep(2);
// Songs can be defined while in passive mode (which we are in right now)
char DSB[] = {140, 0, 3, 74, 40, 75, 20, 70, 32};
write(fd, &DSB, sizeof(DSB));
usleep ((sizeof(DSB)+25) * 100);
char reverse[] = {140, 1, 6, 84, 32, 30, 32, 84, 32, 30, 32, 84, 32, 30, 32};
write(fd, &reverse, sizeof(reverse));
usleep ((sizeof(reverse)+25) * 100);
char car_low[] = {140, 2, 12, 74,10, 71,10, 67,10, 67,10, 67,10, 69,10, 71,10, 72,10, 74,10, 74,10, 74,10, 71,10};
write(fd, &car_low, sizeof(car_low));
usleep ((sizeof(car_low)+25) * 100);
char car_high[] = {140, 3, 12, 86,10, 83,10, 79,10, 79,10, 79,10, 81,10, 83,10, 84,10, 86,10, 86,10, 86,10, 83,10};
write(fd, &car_high, sizeof(car_high));
usleep ((sizeof(car_high)+25) * 100);
return 1;
}
/* This is our thread function. It is like main(), but for a thread */
void* sendOrder(void *arg)
{
// Set thread to be detachable such that it will release resources when finished.
pthread_detach(pthread_self());
printf("Now running thread\n");
// Get the passed item/integer
fd = *((int *) arg);
// This is the clean cycle task
// Wake Roomba
setRTS(fd, 0);
usleep(100000); //0.1 sec
setRTS(fd, 1);
sleep(2);
// The trick is to send char arrays
// Put into safe mode
char safe[] = {128, 131};
write(fd, &safe, sizeof(safe));
usleep(20*1000); // When changing mode, allow 20 milliseconds
// Set display to NAb T/O
char display[] = {163, 55, 119, 124, 93};
write(fd, &display, sizeof(display));
usleep ((sizeof(display)+25) * 100);
// Start clean cycle
char clean[] = {135};
write(fd, &clean, sizeof(clean));
usleep ((sizeof(clean)+25) * 100);
return NULL;
}
int openserial(char *devicename)
{
struct termios attr;
if ((fd = open(devicename, O_RDWR)) == -1) return 0; /* Error */
atexit(closeserial);
if (tcgetattr(fd, &oldterminfo) == -1) return 0; /* Error */
attr = oldterminfo;
attr.c_cflag |= CRTSCTS | CLOCAL;
attr.c_oflag = 0;
if (tcflush(fd, TCIOFLUSH) == -1) return 0; /* Error */
if (tcsetattr(fd, TCSANOW, &attr) == -1) return 0; /* Error */
/* Set the lines to a known state, and */
/* finally return non-zero is successful. */
return setRTS(0) && setDTR(0);
}
void CSerialDummy::setRTSDTR(bool rts, bool dtr) {
setRTS(rts);
setDTR(dtr);
}
uint16_t transmitSerialData(void)
{
uint16_t i, res=0;
int fd_flags=0;
struct sigaction save_buffer[2];
fd_flags=fcntl(serialportFd, F_GETFL);
fcntl(serialportFd, F_SETFL, O_RDWR | O_SYNC);
// tcflush(serialportFd, TCIFLUSH);
// tcflush(serialportFd, TCOFLUSH);
//
// if(tcsetattr(serialportFd, TCSANOW, &tp)<0)
// {
// perror("Couldn't set term attributes");
// return -1;
// }
sigaction(SIGALRM, NULL, save_buffer);
setRTS(1);
switch(mode)
{
case RADIOTFTP_MODE_UHF:
usleep(RADIOTFTP_BIM2A_TX_PREDELAY);
break;
case RADIOTFTP_MODE_VHF:
usleep(RADIOTFTP_UHX1_TX_PREDELAY);
break;
case RADIOTFTP_MODE_SERIAL:
usleep(RADIOTFTP_SERIAL_TX_PREDELAY);
break;
default:
perror("unknown baud rate");
safe_exit(-1);
break;
}
{
#if 0
res = write(serialportFd, transmit_buffer, transmit_length);
#else
printf("transmit_length=%d\n", transmit_length);
srand(time(NULL));
for(i=0; i < transmit_length; i++)
{
double myFloatRandom=(((float) rand()) / (float) RAND_MAX);
if(myFloatRandom < BYTE_ERROR_PROB)
{
printf("%f < %f [0x%02X]=", myFloatRandom, BYTE_ERROR_PROB, transmit_buffer[i]);
transmit_buffer[i]^=0xFF;
printf("[0x%02X]\n", transmit_buffer[i]);
}
res=write(serialportFd, transmit_buffer + i, 1);
//fprintf(stdout, "%c", io[i]);
// Potential preamble problem??
//usleep(10000);
if(res < 0)
{
printf("serial write failed\n");
return -3;
}
}
#endif
if(res < 0)
{
return -2;
}
//wait for the buffer to be flushed
tcdrain(serialportFd);
switch(mode)
{
case RADIOTFTP_MODE_UHF:
usleep(RADIOTFTP_BIM2A_TX_POSTDELAY);
break;
case RADIOTFTP_MODE_VHF:
usleep(RADIOTFTP_UHX1_TX_POSTDELAY);
break;
case RADIOTFTP_MODE_SERIAL:
usleep(RADIOTFTP_SERIAL_TX_POSTDELAY);
break;
default:
perror("unknown baud rate");
safe_exit(-1);
break;
}
}
sigaction(SIGALRM, save_buffer, NULL);
setRTS(0);
fcntl(serialportFd, F_GETFL);
fcntl(serialportFd, F_SETFL, fd_flags | O_RDWR | O_ASYNC);
// print_time("data sent");
return 0;
}
void APP_Tasks(void) {
/* Check if device is configured. See if it is configured with correct
* configuration value */
switch (appData.state) {
case APP_STATE_INIT:
/* Open the device layer */
appData.usbDevHandle = USB_DEVICE_Open(USB_DEVICE_INDEX_0, DRV_IO_INTENT_READWRITE);
if (appData.usbDevHandle != USB_DEVICE_HANDLE_INVALID) {
/* Register a callback with device layer to get event notification (for end point 0) */
USB_DEVICE_EventHandlerSet(appData.usbDevHandle, APP_USBDeviceEventHandler, 0);
appData.state = APP_STATE_WAIT_FOR_CONFIGURATION;
} else {
/* The Device Layer is not ready to be opened. We should try
* again later. */
}
break;
case APP_STATE_WAIT_FOR_CONFIGURATION:
if (appData.deviceConfigured == true) {
/* Device is ready to run the main task */
appData.hidDataReceived = false;
appData.hidDataTransmitted = true;
appData.state = APP_STATE_MAIN_TASK;
/* Place a new read request. */
USB_DEVICE_HID_ReportReceive(USB_DEVICE_HID_INDEX_0,
&appData.rxTransferHandle, appData.receiveDataBuffer, 64);
}
break;
case APP_STATE_MAIN_TASK:
if (!appData.deviceConfigured) {
/* Device is not configured */
appData.state = APP_STATE_WAIT_FOR_CONFIGURATION;
} else if (appData.hidDataReceived) {
/* Look at the data the host sent, to see what
* kind of application specific command it sent. */
switch (appData.receiveDataBuffer[0]) {
case 0x80:
/* Toggle on board LED1 to LED2. */
BSP_LEDToggle(APP_USB_LED_1);
BSP_LEDToggle(APP_USB_LED_2);
setRTR();
break;
case 0x81:
if (appData.hidDataTransmitted) {
/* Echo back to the host PC the command we are fulfilling in
* the first byte. In this case, the Get Push-button State
* command. */
appData.transmitDataBuffer[0] = 0x81;
appData.transmitDataBuffer[1] = 0b1 & BSP_SwitchStateGet(APP_USB_SWITCH_1);
appData.transmitDataBuffer[2] = 111;
setRTS();
setRTR();
}
break;
case 0x82:
if (!appData.numTX || _CP0_GET_COUNT() > 200000) {
//prepare new data to send
acc_read_register(OUT_X_L_A, (unsigned char *) appData.accels, 6);
appData.transmitDataBuffer[0] = 1; //we have data to send
appData.transmitDataBuffer[1] = appData.accels[0] >> 8; //x high byte
appData.transmitDataBuffer[2] = appData.accels[0] & 0xFF; //x low byte
appData.transmitDataBuffer[3] = appData.accels[1] >> 8; //y high byte
appData.transmitDataBuffer[4] = appData.accels[1] & 0xFF; //y low byte
appData.transmitDataBuffer[5] = appData.accels[2] >> 8; //z high byte
appData.transmitDataBuffer[6] = appData.accels[2] & 0xFF; //z low byte
// reset core timer for 100 hz
_CP0_SET_COUNT(0);
appData.numTX++;
}
else {
appData.transmitDataBuffer[0] = 0; // we don't have new data
}
setRTS();
setRTR();
break;
case 0x83:
// prepare for a bout of sending accel data
//parse incoming data to screen
oled_clear_buffer();
int row = appData.receiveDataBuffer[1];
char * msg;
msg = &appData.receiveDataBuffer[2];
oled_draw_string(0, row, msg, 1);
oled_update();
// clear buffered accel data so we read new data to send
acc_read_register(OUT_X_L_A, (unsigned char *) appData.accels, 6);
appData.numTX = 0; //we're starting over
setRTR();
break;
case 0x84:
// done asking for data
oled_draw_string(0, 55, "Done!", 1);
oled_update();
setRTR();
break;
default:
setRTR();
break;
}
}