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Code Issues Releases Activity

LP-328 Moved i2c operation PIOS_HMC5x83_ReadMag() from _driver_fetch() to _driver_poll() so that fetch() always get good data

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This commit is contained in:
Vladimir Zidar 2016-06-02 14:34:38 +02:00
parent f27db8b65c
commit 77a28f2066
1 changed files with 19 additions and 18 deletions
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37
flight/pios/common/pios_hmc5x83.c
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@ -48,6 +48,7 @@ typedef struct {
uint16_t magCountMax;
uint16_t magCount;
volatile bool data_ready;
int16_t magData[3];
bool hw_error;
uint32_t lastConfigTime;
} pios_hmc5x83_dev_data_t;
@ -712,7 +713,6 @@ int32_t PIOS_HMC5x83_I2C_Write(pios_hmc5x83_dev_t handler, uint8_t address, uint
bool PIOS_HMC5x83_driver_Test(__attribute__((unused)) uintptr_t context)
{
return true; // Do not do tests now, Sensors module takes this rather too seriously.
// return !PIOS_HMC5x83_Test((pios_hmc5x83_dev_t)context);
}
void PIOS_HMC5x83_driver_Reset(__attribute__((unused)) uintptr_t context) {}
@ -726,26 +726,14 @@ void PIOS_HMC5x83_driver_get_scale(float *scales, uint8_t size, __attribute__((u
void PIOS_HMC5x83_driver_fetch(void *data, uint8_t size, uintptr_t context)
{
PIOS_Assert(size > 0);
int16_t mag[3];
pios_hmc5x83_dev_data_t *dev = dev_validate((pios_hmc5x83_dev_t)context);
PIOS_SENSORS_3Axis_SensorsWithTemp *tmp = data;
if (!dev->hw_error && (PIOS_HMC5x83_ReadMag((pios_hmc5x83_dev_t)context, mag) == 0)) {
tmp->count = 1;
tmp->sample[0].x = mag[0];
tmp->sample[0].y = mag[1];
tmp->sample[0].z = mag[2];
} else {
tmp->count = 1;
tmp->sample[0].x = 0;
tmp->sample[0].y = 0;
tmp->sample[0].z = 0;
dev->hw_error = true;
}
tmp->count = 1;
tmp->sample[0].x = dev->magData[0];
tmp->sample[0].y = dev->magData[1];
tmp->sample[0].z = dev->magData[2];
tmp->temperature = 0;
}
@ -769,7 +757,20 @@ bool PIOS_HMC5x83_driver_poll(uintptr_t context)
}
}
return PIOS_HMC5x83_NewDataAvailable((pios_hmc5x83_dev_t)context);
if (dev->hw_error) {
return false;
}
if (!PIOS_HMC5x83_NewDataAvailable((pios_hmc5x83_dev_t)context)) {
return false;
}
if (PIOS_HMC5x83_ReadMag((pios_hmc5x83_dev_t)context, dev->magData) != 0) {
dev->hw_error = true;
return false;
}
return true;
}
#endif /* PIOS_INCLUDE_HMC5x83 */