static bool bitforce_get_temp(struct cgpu_info *bitforce)
{
int fdDev = bitforce->device_fd;
char pdevbuf[0x100];
char *s;
if (!fdDev)
return false;
/* Do not try to get the temperature if we're polling for a result to
* minimise the chance of interleaved results */
if (bitforce->polling)
return true;
// Flash instead of Temp - doing both can be too slow
if (bitforce->flash_led) {
bitforce_flash_led(bitforce);
return true;
}
/* It is not critical getting temperature so don't get stuck if we
* can't grab the mutex here */
if (mutex_trylock(&bitforce->device_mutex))
return false;
BFwrite(fdDev, "ZLX", 3);
pdevbuf[0] = '\0';
BFgets(pdevbuf, sizeof(pdevbuf), fdDev);
mutex_unlock(&bitforce->device_mutex);
if (unlikely(!pdevbuf[0])) {
applog(LOG_ERR, "BFL%i: Error: Get temp returned empty string/timed out", bitforce->device_id);
bitforce->hw_errors++;
return false;
}
if ((!strncasecmp(pdevbuf, "TEMP", 4)) && (s = strchr(pdevbuf + 4, ':'))) {
float temp = strtof(s + 1, NULL);
/* Cope with older software that breaks and reads nonsense
* values */
if (temp > 100)
temp = strtod(s + 1, NULL);
if (temp > 0) {
bitforce->temp = temp;
if (unlikely(bitforce->cutofftemp > 0 && temp > bitforce->cutofftemp)) {
applog(LOG_WARNING, "BFL%i: Hit thermal cutoff limit, disabling!", bitforce->device_id);
bitforce->deven = DEV_RECOVER;
dev_error(bitforce, REASON_DEV_THERMAL_CUTOFF);
}
}
} else {
/* Use the temperature monitor as a kind of watchdog for when
* our responses are out of sync and flush the buffer to
* hopefully recover */
applog(LOG_WARNING, "BFL%i: Garbled response probably throttling, clearing buffer", bitforce->device_id);
dev_error(bitforce, REASON_DEV_THROTTLE);
/* Count throttling episodes as hardware errors */
bitforce->hw_errors++;
bitforce_clear_buffer(bitforce);
return false;
}
return true;
}
static bool bitforce_get_temp(struct cgpu_info *bitforce)
{
char buf[BITFORCE_BUFSIZ+1];
int err, amount;
char *s;
/* Do not try to get the temperature if we're polling for a result to
* minimise the chance of interleaved results */
if (bitforce->polling)
return true;
// Flash instead of Temp - doing both can be too slow
if (bitforce->flash_led) {
bitforce_flash_led(bitforce);
return true;
}
/* It is not critical getting temperature so don't get stuck if we
* can't grab the mutex here */
if (mutex_trylock(&bitforce->device_mutex))
return false;
if ((err = usb_write(bitforce, BITFORCE_TEMPERATURE, BITFORCE_TEMPERATURE_LEN, &amount, C_REQUESTTEMPERATURE)) < 0 || amount != BITFORCE_TEMPERATURE_LEN) {
mutex_unlock(&bitforce->device_mutex);
applog(LOG_ERR, "%s%i: Error: Request temp invalid/timed out (%d:%d)",
bitforce->drv->name, bitforce->device_id, amount, err);
bitforce->hw_errors++;
return false;
}
if ((err = usb_ftdi_read_nl(bitforce, buf, sizeof(buf)-1, &amount, C_GETTEMPERATURE)) < 0 || amount < 1) {
mutex_unlock(&bitforce->device_mutex);
if (err < 0) {
applog(LOG_ERR, "%s%i: Error: Get temp return invalid/timed out (%d:%d)",
bitforce->drv->name, bitforce->device_id, amount, err);
} else {
applog(LOG_ERR, "%s%i: Error: Get temp returned nothing (%d:%d)",
bitforce->drv->name, bitforce->device_id, amount, err);
}
bitforce->hw_errors++;
return false;
}
mutex_unlock(&bitforce->device_mutex);
if ((!strncasecmp(buf, "TEMP", 4)) && (s = strchr(buf + 4, ':'))) {
float temp = strtof(s + 1, NULL);
/* Cope with older software that breaks and reads nonsense
* values */
if (temp > 100)
temp = strtod(s + 1, NULL);
if (temp > 0) {
bitforce->temp = temp;
if (unlikely(bitforce->cutofftemp > 0 && temp > bitforce->cutofftemp)) {
applog(LOG_WARNING, "%s%i: Hit thermal cutoff limit, disabling!",
bitforce->drv->name, bitforce->device_id);
bitforce->deven = DEV_RECOVER;
dev_error(bitforce, REASON_DEV_THERMAL_CUTOFF);
}
}
} else {
/* Use the temperature monitor as a kind of watchdog for when
* our responses are out of sync and flush the buffer to
* hopefully recover */
applog(LOG_WARNING, "%s%i: Garbled response probably throttling, clearing buffer",
bitforce->drv->name, bitforce->device_id);
dev_error(bitforce, REASON_DEV_THROTTLE);
/* Count throttling episodes as hardware errors */
bitforce->hw_errors++;
bitforce_initialise(bitforce, true);
return false;
}
return true;
}