spi_temperature: Eliminate check_faults() callback

The faults can be checked from the calc_temp() method.

Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
This commit is contained in:
Kevin O'Connor 2018-07-24 14:50:47 -04:00
parent f20dd0c9be
commit f168032901
1 changed files with 6 additions and 15 deletions

View File

@ -70,14 +70,11 @@ class SensorBase:
self.oid, clock, self._report_clock, self.oid, clock, self._report_clock,
self.min_sample_value, self.max_sample_value)) self.min_sample_value, self.max_sample_value))
def _handle_spi_response(self, params): def _handle_spi_response(self, params):
last_value = params['value'] temp = self.calc_temp(params['value'], params['fault'])
next_clock = self.mcu.clock32_to_clock64(params['next_clock']) next_clock = self.mcu.clock32_to_clock64(params['next_clock'])
last_read_clock = next_clock - self._report_clock last_read_clock = next_clock - self._report_clock
last_read_time = self.mcu.clock_to_print_time(last_read_clock) last_read_time = self.mcu.clock_to_print_time(last_read_clock)
temp = self.calc_temp(last_value) self._callback(last_read_time, temp)
self.check_faults(params['fault'])
if self._callback is not None:
self._callback(last_read_time, temp)
###################################################################### ######################################################################
@ -160,7 +157,7 @@ class MAX31856(SensorBase):
} }
self.average_count = config.getchoice('tc_averaging_count', averages, "1") self.average_count = config.getchoice('tc_averaging_count', averages, "1")
SensorBase.__init__(self, config) SensorBase.__init__(self, config)
def check_faults(self, fault): def calc_temp(self, adc, fault):
if fault & MAX31856_FAULT_CJRANGE: if fault & MAX31856_FAULT_CJRANGE:
raise self.error("Max31856: Cold Junction Range Fault") raise self.error("Max31856: Cold Junction Range Fault")
if fault & MAX31856_FAULT_TCRANGE: if fault & MAX31856_FAULT_TCRANGE:
@ -177,7 +174,6 @@ class MAX31856(SensorBase):
raise self.error("Max31856: Over/Under Voltage Fault") raise self.error("Max31856: Over/Under Voltage Fault")
if fault & MAX31856_FAULT_OPEN: if fault & MAX31856_FAULT_OPEN:
raise self.error("Max31856: Thermocouple Open Fault") raise self.error("Max31856: Thermocouple Open Fault")
def calc_temp(self, adc):
adc = adc >> MAX31856_SCALE adc = adc >> MAX31856_SCALE
# Fix sign bit: # Fix sign bit:
if adc & 0x40000: if adc & 0x40000:
@ -219,9 +215,7 @@ class MAX31855(SensorBase):
def __init__(self, config): def __init__(self, config):
self.chip_type = "MAX31855" self.chip_type = "MAX31855"
SensorBase.__init__(self, config) SensorBase.__init__(self, config)
def check_faults(self, fault): def calc_temp(self, adc, fault):
pass
def calc_temp(self, adc):
if adc & 0x1: if adc & 0x1:
raise self.error("MAX31855 : Open Circuit") raise self.error("MAX31855 : Open Circuit")
if adc & 0x2: if adc & 0x2:
@ -253,9 +247,7 @@ class MAX6675(SensorBase):
def __init__(self, config): def __init__(self, config):
self.chip_type = "MAX6675" self.chip_type = "MAX6675"
SensorBase.__init__(self, config) SensorBase.__init__(self, config)
def check_faults(self, fault): def calc_temp(self, adc, fault):
pass
def calc_temp(self, adc):
if adc & 0x02: if adc & 0x02:
raise self.error("Max6675 : Device ID error") raise self.error("Max6675 : Device ID error")
if adc & 0x04: if adc & 0x04:
@ -314,7 +306,7 @@ class MAX31865(SensorBase):
self.num_wires = config.getint('rtd_num_of_wires', 2) self.num_wires = config.getint('rtd_num_of_wires', 2)
self.use_50Hz_filter = config.getboolean('rtd_use_50Hz_filter', False) self.use_50Hz_filter = config.getboolean('rtd_use_50Hz_filter', False)
SensorBase.__init__(self, config) SensorBase.__init__(self, config)
def check_faults(self, fault): def calc_temp(self, adc, fault):
if fault & 0x80: if fault & 0x80:
raise self.error("Max31865 RTD input is disconnected") raise self.error("Max31865 RTD input is disconnected")
if fault & 0x40: if fault & 0x40:
@ -329,7 +321,6 @@ class MAX31865(SensorBase):
raise self.error("Max31865 Overvoltage or undervoltage fault") raise self.error("Max31865 Overvoltage or undervoltage fault")
if fault & 0x03: if fault & 0x03:
raise self.error("Max31865 Unspecified error") raise self.error("Max31865 Unspecified error")
def calc_temp(self, adc):
adc = adc >> 1 # remove fault bit adc = adc >> 1 # remove fault bit
R_rtd = (self.reference_r * adc) / VAL_ADC_MAX R_rtd = (self.reference_r * adc) / VAL_ADC_MAX
temp = ( temp = (