static ssize_t dbg_read(int fd, void *buf, size_t count)
{
if (ps.opened && ps.fd == fd)
return debug_read(ps.tid, buf, count);
return debug_read(fd, buf, count);
}
void GPSSensorUBX::DoSerialAGPS(void) {
// Light
PwmOut led1(LED1);
PwmOut led2(LED2);
led1.write(1.0);
led2.write(1.0);
bool gotSomething = false;
while(1) {
char c;
if(debug_read(&c)) {
DBG("got %c",c);
gps.putc(c);
gotSomething = true;
} else if(gotSomething) {
break;
}
}
DBG("out");
led1.write(0.0);
led2.write(0.0);
}
int _read(int file, char* ptr, int len) {
int n;
int num = 0;
if (file == STDIN_FILENO) {
for (n = 0; n < len; n++) {
*ptr++ = (char)debug_read();
num++;
}
}
#ifdef SDCARD_ENABLE
else if (file >= SDCARD_START_FILE_DESCRIPTOR && file < (SDCARD_START_FILE_DESCRIPTOR + SDCARD_MAX_OPEN_FILES)) {
return _newlib_sdcard_read(file, ptr, len);
}
#endif
else {
errno = EBADF;
return -1;
}
return num;
}
int writeMemory(unsigned long addr){
/* TODO: write all data of image from flash to stm32 */
/* return 1 if successful and 0 if not */
int offs = 0;
unsigned char * data = (unsigned char *)malloc(sizeof(unsigned char)*data_size);
int complete = 0;
while(!complete){
mdebug(0, "@"); //informs python server to send data bytes
debug_read(data,data_size);
//mdebug(0, "Got data");
if(data[0] == 's' && data[1] == 't' && data[2] == 'o' && data[3] == 'p' && data[4] == '!' && data[5] == '!'){
//complete!
return 0;
}
//mdebug(5, "Write bytes");
cmdWriteMemory(addr, data, data_size);
addr = addr + data_size;
}
mdebug(0, "Write Complete");
return 0;
}