/**
* Called after measuring roll and pitch to update the
* stabilization settings
*
* takes in @ref RelayTuning and outputs @ref StabilizationSettings
*/
static void update_stabilization_settings()
{
RelayTuningData relayTuning;
RelayTuningGet(&relayTuning);
RelayTuningSettingsData relaySettings;
RelayTuningSettingsGet(&relaySettings);
StabilizationSettingsData stabSettings;
StabilizationSettingsGet(&stabSettings);
// Eventually get these settings from RelayTuningSettings
const float gain_ratio_r = 1.0f / 3.0f;
const float zero_ratio_r = 1.0f / 3.0f;
const float gain_ratio_p = 1.0f / 5.0f;
const float zero_ratio_p = 1.0f / 5.0f;
// For now just run over roll and pitch
for (uint32_t i = 0; i < 2; i++) {
float wu = 1000.0f * 2 * PI / relayTuning.Period[i]; // ultimate freq = output osc freq (rad/s)
float wc = wu * gain_ratio_r; // target openloop crossover frequency (rad/s)
float zc = wc * zero_ratio_r; // controller zero location (rad/s)
float kpu = 4.0f / PI / relayTuning.Gain[i]; // ultimate gain, i.e. the proportional gain for instablity
float kp = kpu * gain_ratio_r; // proportional gain
float ki = zc * kp; // integral gain
// Now calculate gains for the next loop out knowing it is the integral of
// the inner loop -- the plant is position/velocity = scale*1/s
float wc2 = wc * gain_ratio_p; // crossover of the attitude loop
float kp2 = wc2; // kp of attitude
float ki2 = wc2 * zero_ratio_p * kp2; // ki of attitude
switch(i) {
case 0: // roll
stabSettings.RollRatePID[STABILIZATIONSETTINGS_ROLLRATEPID_KP] = kp;
stabSettings.RollRatePID[STABILIZATIONSETTINGS_ROLLRATEPID_KI] = ki;
stabSettings.RollPI[STABILIZATIONSETTINGS_ROLLPI_KP] = kp2;
stabSettings.RollPI[STABILIZATIONSETTINGS_ROLLPI_KI] = ki2;
break;
case 1: // Pitch
stabSettings.PitchRatePID[STABILIZATIONSETTINGS_ROLLRATEPID_KP] = kp;
stabSettings.PitchRatePID[STABILIZATIONSETTINGS_ROLLRATEPID_KI] = ki;
stabSettings.PitchPI[STABILIZATIONSETTINGS_ROLLPI_KP] = kp2;
stabSettings.PitchPI[STABILIZATIONSETTINGS_ROLLPI_KI] = ki2;
break;
default:
// Oh shit oh shit oh shit
break;
}
}
switch(relaySettings.Behavior) {
case RELAYTUNINGSETTINGS_BEHAVIOR_MEASURE:
// Just measure, don't update the stab settings
break;
case RELAYTUNINGSETTINGS_BEHAVIOR_COMPUTE:
StabilizationSettingsSet(&stabSettings);
break;
case RELAYTUNINGSETTINGS_BEHAVIOR_SAVE:
StabilizationSettingsSet(&stabSettings);
UAVObjSave(StabilizationSettingsHandle(), 0);
break;
}
}
/**
* Initialise the module, called on startup
* \returns 0 on success or -1 if initialisation failed
*/
int32_t TxPIDInitialize(void)
{
bool module_enabled;
#ifdef MODULE_TxPID_BUILTIN
module_enabled = true;
#else
uint8_t module_state[MODULESETTINGS_ADMINSTATE_NUMELEM];
ModuleSettingsAdminStateGet(module_state);
if (module_state[MODULESETTINGS_ADMINSTATE_TXPID] == MODULESETTINGS_ADMINSTATE_ENABLED) {
module_enabled = true;
} else {
module_enabled = false;
}
#endif
if (module_enabled) {
TxPIDSettingsInitialize();
AccessoryDesiredInitialize();
UAVObjEvent ev = {
.obj = AccessoryDesiredHandle(),
.instId = 0,
.event = 0,
};
EventPeriodicCallbackCreate(&ev, updatePIDs, SAMPLE_PERIOD_MS);
#if (TELEMETRY_UPDATE_PERIOD_MS != 0)
// Change StabilizationSettings update rate from OnChange to periodic
// to prevent telemetry link flooding with frequent updates in case of
// control channel jitter.
// Warning: saving to flash with this code active will change the
// StabilizationSettings update rate permanently. Use Metadata via
// browser to reset to defaults (telemetryAcked=true, OnChange).
UAVObjMetadata metadata;
StabilizationSettingsInitialize();
StabilizationSettingsGetMetadata(&metadata);
metadata.telemetryAcked = 0;
metadata.telemetryUpdateMode = UPDATEMODE_PERIODIC;
metadata.telemetryUpdatePeriod = TELEMETRY_UPDATE_PERIOD_MS;
StabilizationSettingsSetMetadata(&metadata);
#endif
return 0;
}
return -1;
}
MODULE_INITCALL(TxPIDInitialize, NULL);
/**
* Update PIDs callback function
*/
static void updatePIDs(UAVObjEvent* ev)
{
if (ev->obj != AccessoryDesiredHandle())
return;
TxPIDSettingsData inst;
TxPIDSettingsGet(&inst);
if (inst.UpdateMode == TXPIDSETTINGS_UPDATEMODE_NEVER)
return;
uint8_t armed;
FlightStatusArmedGet(&armed);
if ((inst.UpdateMode == TXPIDSETTINGS_UPDATEMODE_WHENARMED) &&
(armed == FLIGHTSTATUS_ARMED_DISARMED))
return;
StabilizationSettingsData stab;
StabilizationSettingsGet(&stab);
#ifdef UAVOBJ_INIT_vtolpathfollowersettings
VtolPathFollowerSettingsData vtolPathFollowerSettingsData;
// Check to make sure the settings UAVObject has been instantiated
if (VtolPathFollowerSettingsHandle()) {
VtolPathFollowerSettingsGet(&vtolPathFollowerSettingsData);
}
bool vtolPathFollowerSettingsNeedsUpdate = false;
#endif
AccessoryDesiredData accessory;
bool stabilizationSettingsNeedsUpdate = false;
// Loop through every enabled instance
for (uint8_t i = 0; i < TXPIDSETTINGS_PIDS_NUMELEM; i++) {
if (inst.PIDs[i] != TXPIDSETTINGS_PIDS_DISABLED) {
float value;
if (inst.Inputs[i] == TXPIDSETTINGS_INPUTS_THROTTLE) {
ManualControlCommandThrottleGet(&value);
value = scale(value,
inst.ThrottleRange[TXPIDSETTINGS_THROTTLERANGE_MIN],
inst.ThrottleRange[TXPIDSETTINGS_THROTTLERANGE_MAX],
inst.MinPID[i], inst.MaxPID[i]);
} else if (AccessoryDesiredInstGet(inst.Inputs[i] - TXPIDSETTINGS_INPUTS_ACCESSORY0, &accessory) == 0) {
value = scale(accessory.AccessoryVal, -1.0, 1.0, inst.MinPID[i], inst.MaxPID[i]);
} else {
continue;
}
switch (inst.PIDs[i]) {
case TXPIDSETTINGS_PIDS_ROLLRATEKP:
stabilizationSettingsNeedsUpdate |= update(&stab.RollRatePID[STABILIZATIONSETTINGS_ROLLRATEPID_KP], value);
break;
case TXPIDSETTINGS_PIDS_ROLLRATEKI:
stabilizationSettingsNeedsUpdate |= update(&stab.RollRatePID[STABILIZATIONSETTINGS_ROLLRATEPID_KI], value);
break;
case TXPIDSETTINGS_PIDS_ROLLRATEKD:
stabilizationSettingsNeedsUpdate |= update(&stab.RollRatePID[STABILIZATIONSETTINGS_ROLLRATEPID_KD], value);
break;
case TXPIDSETTINGS_PIDS_ROLLRATEILIMIT:
stabilizationSettingsNeedsUpdate |= update(&stab.RollRatePID[STABILIZATIONSETTINGS_ROLLRATEPID_ILIMIT], value);
break;
case TXPIDSETTINGS_PIDS_ROLLATTITUDEKP:
stabilizationSettingsNeedsUpdate |= update(&stab.RollPI[STABILIZATIONSETTINGS_ROLLPI_KP], value);
break;
case TXPIDSETTINGS_PIDS_ROLLATTITUDEKI:
stabilizationSettingsNeedsUpdate |= update(&stab.RollPI[STABILIZATIONSETTINGS_ROLLPI_KI], value);
break;
case TXPIDSETTINGS_PIDS_ROLLATTITUDEILIMIT:
stabilizationSettingsNeedsUpdate |= update(&stab.RollPI[STABILIZATIONSETTINGS_ROLLPI_ILIMIT], value);
break;
case TXPIDSETTINGS_PIDS_PITCHRATEKP:
stabilizationSettingsNeedsUpdate |= update(&stab.PitchRatePID[STABILIZATIONSETTINGS_PITCHRATEPID_KP], value);
break;
case TXPIDSETTINGS_PIDS_PITCHRATEKI:
stabilizationSettingsNeedsUpdate |= update(&stab.PitchRatePID[STABILIZATIONSETTINGS_PITCHRATEPID_KI], value);
break;
case TXPIDSETTINGS_PIDS_PITCHRATEKD:
stabilizationSettingsNeedsUpdate |= update(&stab.PitchRatePID[STABILIZATIONSETTINGS_PITCHRATEPID_KD], value);
break;
case TXPIDSETTINGS_PIDS_PITCHRATEILIMIT:
stabilizationSettingsNeedsUpdate |= update(&stab.PitchRatePID[STABILIZATIONSETTINGS_PITCHRATEPID_ILIMIT], value);
break;
case TXPIDSETTINGS_PIDS_PITCHATTITUDEKP:
stabilizationSettingsNeedsUpdate |= update(&stab.PitchPI[STABILIZATIONSETTINGS_PITCHPI_KP], value);
break;
case TXPIDSETTINGS_PIDS_PITCHATTITUDEKI:
stabilizationSettingsNeedsUpdate |= update(&stab.PitchPI[STABILIZATIONSETTINGS_PITCHPI_KI], value);
break;
case TXPIDSETTINGS_PIDS_PITCHATTITUDEILIMIT:
stabilizationSettingsNeedsUpdate |= update(&stab.PitchPI[STABILIZATIONSETTINGS_PITCHPI_ILIMIT], value);
break;
case TXPIDSETTINGS_PIDS_ROLLPITCHRATEKP:
stabilizationSettingsNeedsUpdate |= update(&stab.RollRatePID[STABILIZATIONSETTINGS_ROLLRATEPID_KP], value);
stabilizationSettingsNeedsUpdate |= update(&stab.PitchRatePID[STABILIZATIONSETTINGS_PITCHRATEPID_KP], value);
break;
case TXPIDSETTINGS_PIDS_ROLLPITCHRATEKI:
stabilizationSettingsNeedsUpdate |= update(&stab.RollRatePID[STABILIZATIONSETTINGS_ROLLRATEPID_KI], value);
stabilizationSettingsNeedsUpdate |= update(&stab.PitchRatePID[STABILIZATIONSETTINGS_PITCHRATEPID_KI], value);
break;
case TXPIDSETTINGS_PIDS_ROLLPITCHRATEKD:
stabilizationSettingsNeedsUpdate |= update(&stab.RollRatePID[STABILIZATIONSETTINGS_ROLLRATEPID_KD], value);
stabilizationSettingsNeedsUpdate |= update(&stab.PitchRatePID[STABILIZATIONSETTINGS_PITCHRATEPID_KD], value);
break;
case TXPIDSETTINGS_PIDS_ROLLPITCHRATEILIMIT:
stabilizationSettingsNeedsUpdate |= update(&stab.RollRatePID[STABILIZATIONSETTINGS_ROLLRATEPID_ILIMIT], value);
stabilizationSettingsNeedsUpdate |= update(&stab.PitchRatePID[STABILIZATIONSETTINGS_PITCHRATEPID_ILIMIT], value);
break;
case TXPIDSETTINGS_PIDS_ROLLPITCHATTITUDEKP:
stabilizationSettingsNeedsUpdate |= update(&stab.RollPI[STABILIZATIONSETTINGS_ROLLPI_KP], value);
stabilizationSettingsNeedsUpdate |= update(&stab.PitchPI[STABILIZATIONSETTINGS_PITCHPI_KP], value);
break;
case TXPIDSETTINGS_PIDS_ROLLPITCHATTITUDEKI:
stabilizationSettingsNeedsUpdate |= update(&stab.RollPI[STABILIZATIONSETTINGS_ROLLPI_KI], value);
stabilizationSettingsNeedsUpdate |= update(&stab.PitchPI[STABILIZATIONSETTINGS_PITCHPI_KI], value);
break;
case TXPIDSETTINGS_PIDS_ROLLPITCHATTITUDEILIMIT:
stabilizationSettingsNeedsUpdate |= update(&stab.RollPI[STABILIZATIONSETTINGS_ROLLPI_ILIMIT], value);
stabilizationSettingsNeedsUpdate |= update(&stab.PitchPI[STABILIZATIONSETTINGS_PITCHPI_ILIMIT], value);
break;
case TXPIDSETTINGS_PIDS_YAWRATEKP:
stabilizationSettingsNeedsUpdate |= update(&stab.YawRatePID[STABILIZATIONSETTINGS_YAWRATEPID_KP], value);
break;
case TXPIDSETTINGS_PIDS_YAWRATEKI:
stabilizationSettingsNeedsUpdate |= update(&stab.YawRatePID[STABILIZATIONSETTINGS_YAWRATEPID_KI], value);
break;
case TXPIDSETTINGS_PIDS_YAWRATEKD:
stabilizationSettingsNeedsUpdate |= update(&stab.YawRatePID[STABILIZATIONSETTINGS_YAWRATEPID_KD], value);
break;
case TXPIDSETTINGS_PIDS_YAWRATEILIMIT:
stabilizationSettingsNeedsUpdate |= update(&stab.YawRatePID[STABILIZATIONSETTINGS_YAWRATEPID_ILIMIT], value);
break;
case TXPIDSETTINGS_PIDS_YAWATTITUDEKP:
stabilizationSettingsNeedsUpdate |= update(&stab.YawPI[STABILIZATIONSETTINGS_YAWPI_KP], value);
break;
case TXPIDSETTINGS_PIDS_YAWATTITUDEKI:
stabilizationSettingsNeedsUpdate |= update(&stab.YawPI[STABILIZATIONSETTINGS_YAWPI_KI], value);
break;
case TXPIDSETTINGS_PIDS_YAWATTITUDEILIMIT:
stabilizationSettingsNeedsUpdate |= update(&stab.YawPI[STABILIZATIONSETTINGS_YAWPI_ILIMIT], value);
break;
case TXPIDSETTINGS_PIDS_GYROCUTOFF:
stabilizationSettingsNeedsUpdate |= update(&stab.GyroCutoff, value);
break;
case TXPIDSETTINGS_PIDS_ROLLVBARSENSITIVITY:
stabilizationSettingsNeedsUpdate |= update(&stab.VbarSensitivity[STABILIZATIONSETTINGS_VBARSENSITIVITY_ROLL], value);
break;
case TXPIDSETTINGS_PIDS_PITCHVBARSENSITIVITY:
stabilizationSettingsNeedsUpdate |= update(&stab.VbarSensitivity[STABILIZATIONSETTINGS_VBARSENSITIVITY_PITCH], value);
break;
case TXPIDSETTINGS_PIDS_ROLLPITCHVBARSENSITIVITY:
stabilizationSettingsNeedsUpdate |= update(&stab.VbarSensitivity[STABILIZATIONSETTINGS_VBARSENSITIVITY_ROLL], value);
stabilizationSettingsNeedsUpdate |= update(&stab.VbarSensitivity[STABILIZATIONSETTINGS_VBARSENSITIVITY_PITCH], value);
break;
case TXPIDSETTINGS_PIDS_YAWVBARSENSITIVITY:
stabilizationSettingsNeedsUpdate |= update(&stab.VbarSensitivity[STABILIZATIONSETTINGS_VBARSENSITIVITY_YAW], value);
break;
case TXPIDSETTINGS_PIDS_ROLLVBARKP:
stabilizationSettingsNeedsUpdate |= update(&stab.VbarRollPID[STABILIZATIONSETTINGS_VBARROLLPID_KP], value);
break;
case TXPIDSETTINGS_PIDS_ROLLVBARKI:
stabilizationSettingsNeedsUpdate |= update(&stab.VbarRollPID[STABILIZATIONSETTINGS_VBARROLLPID_KI], value);
break;
case TXPIDSETTINGS_PIDS_ROLLVBARKD:
stabilizationSettingsNeedsUpdate |= update(&stab.VbarRollPID[STABILIZATIONSETTINGS_VBARROLLPID_KD], value);
break;
case TXPIDSETTINGS_PIDS_PITCHVBARKP:
stabilizationSettingsNeedsUpdate |= update(&stab.VbarPitchPID[STABILIZATIONSETTINGS_VBARPITCHPID_KP], value);
break;
case TXPIDSETTINGS_PIDS_PITCHVBARKI:
stabilizationSettingsNeedsUpdate |= update(&stab.VbarPitchPID[STABILIZATIONSETTINGS_VBARPITCHPID_KI], value);
break;
case TXPIDSETTINGS_PIDS_PITCHVBARKD:
stabilizationSettingsNeedsUpdate |= update(&stab.VbarPitchPID[STABILIZATIONSETTINGS_VBARPITCHPID_KD], value);
break;
case TXPIDSETTINGS_PIDS_ROLLPITCHVBARKP:
stabilizationSettingsNeedsUpdate |= update(&stab.VbarRollPID[STABILIZATIONSETTINGS_VBARROLLPID_KP], value);
stabilizationSettingsNeedsUpdate |= update(&stab.VbarPitchPID[STABILIZATIONSETTINGS_VBARPITCHPID_KP], value);
break;
case TXPIDSETTINGS_PIDS_ROLLPITCHVBARKI:
stabilizationSettingsNeedsUpdate |= update(&stab.VbarRollPID[STABILIZATIONSETTINGS_VBARROLLPID_KI], value);
stabilizationSettingsNeedsUpdate |= update(&stab.VbarPitchPID[STABILIZATIONSETTINGS_VBARPITCHPID_KI], value);
break;
case TXPIDSETTINGS_PIDS_ROLLPITCHVBARKD:
stabilizationSettingsNeedsUpdate |= update(&stab.VbarRollPID[STABILIZATIONSETTINGS_VBARROLLPID_KD], value);
stabilizationSettingsNeedsUpdate |= update(&stab.VbarPitchPID[STABILIZATIONSETTINGS_VBARPITCHPID_KD], value);
break;
case TXPIDSETTINGS_PIDS_YAWVBARKP:
stabilizationSettingsNeedsUpdate |= update(&stab.VbarYawPID[STABILIZATIONSETTINGS_VBARYAWPID_KP], value);
break;
case TXPIDSETTINGS_PIDS_YAWVBARKI:
stabilizationSettingsNeedsUpdate |= update(&stab.VbarYawPID[STABILIZATIONSETTINGS_VBARYAWPID_KI], value);
break;
case TXPIDSETTINGS_PIDS_YAWVBARKD:
stabilizationSettingsNeedsUpdate |= update(&stab.VbarYawPID[STABILIZATIONSETTINGS_VBARYAWPID_KD], value);
break;
#ifdef UAVOBJ_INIT_vtolpathfollowersettings
case TXPIDSETTINGS_PIDS_HORIZONTALPOSKP:
vtolPathFollowerSettingsNeedsUpdate |= update(&vtolPathFollowerSettingsData.HorizontalPosPI[VTOLPATHFOLLOWERSETTINGS_HORIZONTALPOSPI_KP], value);
break;
case TXPIDSETTINGS_PIDS_HORIZONTALPOSKI:
vtolPathFollowerSettingsNeedsUpdate |= update(&vtolPathFollowerSettingsData.HorizontalPosPI[VTOLPATHFOLLOWERSETTINGS_HORIZONTALPOSPI_KI], value);
break;
case TXPIDSETTINGS_PIDS_HORIZONTALPOSILIMIT:
vtolPathFollowerSettingsNeedsUpdate |= update(&vtolPathFollowerSettingsData.HorizontalPosPI[VTOLPATHFOLLOWERSETTINGS_HORIZONTALPOSPI_ILIMIT], value);
break;
case TXPIDSETTINGS_PIDS_HORIZONTALVELKP:
vtolPathFollowerSettingsNeedsUpdate |= update(&vtolPathFollowerSettingsData.HorizontalVelPID[VTOLPATHFOLLOWERSETTINGS_HORIZONTALVELPID_KP], value);
break;
case TXPIDSETTINGS_PIDS_HORIZONTALVELKI:
vtolPathFollowerSettingsNeedsUpdate |= update(&vtolPathFollowerSettingsData.HorizontalVelPID[VTOLPATHFOLLOWERSETTINGS_HORIZONTALVELPID_KI], value);
break;
case TXPIDSETTINGS_PIDS_HORIZONTALVELKD:
vtolPathFollowerSettingsNeedsUpdate |= update(&vtolPathFollowerSettingsData.HorizontalVelPID[VTOLPATHFOLLOWERSETTINGS_HORIZONTALVELPID_KD], value);
break;
#endif /* UAVOBJ_INIT_vtolpathfollowersettings */
default:
// Previously this would assert. But now the
// object may be missing and it's not worth a
// crash.
break;
}
}
}
// Update UAVOs, if necessary
if (stabilizationSettingsNeedsUpdate) {
StabilizationSettingsSet(&stab);
}
#ifdef UAVOBJ_INIT_vtolpathfollowersettings
if (vtolPathFollowerSettingsNeedsUpdate) {
// Check to make sure the settings UAVObject has been instantiated
if (VtolPathFollowerSettingsHandle()) {
VtolPathFollowerSettingsSet(&vtolPathFollowerSettingsData);
}
}
#endif
}
/**
* Scales input val from [inMin..inMax] range to [outMin..outMax].
* If val is out of input range (inMin <= inMax), it will be bound.
* (outMin > outMax) is ok, in that case output will be decreasing.
*
* \returns scaled value
*/
static float scale(float val, float inMin, float inMax, float outMin, float outMax)
{
// bound input value
if (val > inMax) val = inMax;
if (val < inMin) val = inMin;
// normalize input value to [0..1]
if (inMax <= inMin)
val = 0.0;
else
val = (val - inMin) / (inMax - inMin);
// update output bounds
if (outMin > outMax) {
float t = outMin;
outMin = outMax;
outMax = t;
val = 1.0f - val;
}
return (outMax - outMin) * val + outMin;
}
/**
* Updates var using val if needed.
* \returns 1 if updated, 0 otherwise
*/
static bool update(float *var, float val)
{
if (*var != val) {
*var = val;
return true;
}
return false;
}
/**
* Initialise the module, called on startup
* \returns 0 on success or -1 if initialisation failed
*/
int32_t TxPIDInitialize(void)
{
bool txPIDEnabled;
HwSettingsOptionalModulesData optionalModules;
#ifdef REVOLUTION
AltitudeHoldSettingsInitialize();
#endif
HwSettingsInitialize();
HwSettingsOptionalModulesGet(&optionalModules);
if (optionalModules.TxPID == HWSETTINGS_OPTIONALMODULES_ENABLED) {
txPIDEnabled = true;
} else {
txPIDEnabled = false;
}
if (txPIDEnabled) {
TxPIDSettingsInitialize();
TxPIDStatusInitialize();
AccessoryDesiredInitialize();
UAVObjEvent ev = {
.obj = AccessoryDesiredHandle(),
.instId = 0,
.event = 0,
.lowPriority = false,
};
EventPeriodicCallbackCreate(&ev, updatePIDs, SAMPLE_PERIOD_MS / portTICK_RATE_MS);
#if (TELEMETRY_UPDATE_PERIOD_MS != 0)
// Change StabilizationSettings update rate from OnChange to periodic
// to prevent telemetry link flooding with frequent updates in case of
// control channel jitter.
// Warning: saving to flash with this code active will change the
// StabilizationSettings update rate permanently. Use Metadata via
// browser to reset to defaults (telemetryAcked=true, OnChange).
UAVObjMetadata metadata;
StabilizationSettingsInitialize();
StabilizationSettingsGetMetadata(&metadata);
metadata.telemetryAcked = 0;
metadata.telemetryUpdateMode = UPDATEMODE_PERIODIC;
metadata.telemetryUpdatePeriod = TELEMETRY_UPDATE_PERIOD_MS;
StabilizationSettingsSetMetadata(&metadata);
AttitudeSettingsInitialize();
AttitudeSettingsGetMetadata(&metadata);
metadata.telemetryAcked = 0;
metadata.telemetryUpdateMode = UPDATEMODE_PERIODIC;
metadata.telemetryUpdatePeriod = TELEMETRY_UPDATE_PERIOD_MS;
AttitudeSettingsSetMetadata(&metadata);
#endif /* if (TELEMETRY_UPDATE_PERIOD_MS != 0) */
return 0;
}
return -1;
}
/* stub: module has no module thread */
int32_t TxPIDStart(void)
{
return 0;
}
MODULE_INITCALL(TxPIDInitialize, TxPIDStart);
/**
* Update PIDs callback function
*/
static void updatePIDs(UAVObjEvent *ev)
{
if (ev->obj != AccessoryDesiredHandle()) {
return;
}
TxPIDSettingsData inst;
TxPIDSettingsGet(&inst);
if (inst.UpdateMode == TXPIDSETTINGS_UPDATEMODE_NEVER) {
return;
}
uint8_t armed;
FlightStatusArmedGet(&armed);
if ((inst.UpdateMode == TXPIDSETTINGS_UPDATEMODE_WHENARMED) &&
(armed == FLIGHTSTATUS_ARMED_DISARMED)) {
return;
}
StabilizationBankData bank;
switch (inst.BankNumber) {
case 0:
StabilizationSettingsBank1Get((StabilizationSettingsBank1Data *)&bank);
break;
case 1:
StabilizationSettingsBank2Get((StabilizationSettingsBank2Data *)&bank);
break;
case 2:
StabilizationSettingsBank3Get((StabilizationSettingsBank3Data *)&bank);
break;
default:
return;
}
StabilizationSettingsData stab;
StabilizationSettingsGet(&stab);
AttitudeSettingsData att;
AttitudeSettingsGet(&att);
#ifdef REVOLUTION
AltitudeHoldSettingsData altitude;
AltitudeHoldSettingsGet(&altitude);
#endif
AccessoryDesiredData accessory;
TxPIDStatusData txpid_status;
TxPIDStatusGet(&txpid_status);
bool easyTuneEnabled = false;
uint8_t needsUpdateBank = 0;
uint8_t needsUpdateStab = 0;
uint8_t needsUpdateAtt = 0;
#ifdef REVOLUTION
uint8_t needsUpdateAltitude = 0;
#endif
// Loop through every enabled instance
for (uint8_t i = 0; i < TXPIDSETTINGS_PIDS_NUMELEM; i++) {
if (TxPIDSettingsPIDsToArray(inst.PIDs)[i] != TXPIDSETTINGS_PIDS_DISABLED) {
float value;
if (TxPIDSettingsInputsToArray(inst.Inputs)[i] == TXPIDSETTINGS_INPUTS_THROTTLE) {
ManualControlCommandThrottleGet(&value);
value = scale(value,
inst.ThrottleRange.Min,
inst.ThrottleRange.Max,
TxPIDSettingsMinPIDToArray(inst.MinPID)[i],
TxPIDSettingsMaxPIDToArray(inst.MaxPID)[i]);
} else if (AccessoryDesiredInstGet(
TxPIDSettingsInputsToArray(inst.Inputs)[i] - TXPIDSETTINGS_INPUTS_ACCESSORY0,
&accessory) == 0) {
value = scale(accessory.AccessoryVal, -1.0f, 1.0f,
TxPIDSettingsMinPIDToArray(inst.MinPID)[i],
TxPIDSettingsMaxPIDToArray(inst.MaxPID)[i]);
} else {
continue;
}
TxPIDStatusCurPIDToArray(txpid_status.CurPID)[i] = value;
switch (TxPIDSettingsPIDsToArray(inst.PIDs)[i]) {
case TXPIDSETTINGS_PIDS_ROLLRATEKP:
needsUpdateBank |= update(&bank.RollRatePID.Kp, value);
break;
case TXPIDSETTINGS_PIDS_EASYTUNERATEROLL:
easyTuneEnabled = true;
needsUpdateBank |= update(&bank.RollRatePID.Kp, value);
needsUpdateBank |= update(&bank.RollRatePID.Ki, value * inst.EasyTunePitchRollRateFactors.I);
needsUpdateBank |= update(&bank.RollRatePID.Kd, value * inst.EasyTunePitchRollRateFactors.D);
break;
case TXPIDSETTINGS_PIDS_EASYTUNERATEPITCH:
easyTuneEnabled = true;
needsUpdateBank |= update(&bank.PitchRatePID.Kp, value);
needsUpdateBank |= update(&bank.PitchRatePID.Ki, value * inst.EasyTunePitchRollRateFactors.I);
needsUpdateBank |= update(&bank.PitchRatePID.Kd, value * inst.EasyTunePitchRollRateFactors.D);
break;
case TXPIDSETTINGS_PIDS_ROLLRATEKI:
needsUpdateBank |= update(&bank.RollRatePID.Ki, value);
break;
case TXPIDSETTINGS_PIDS_ROLLRATEKD:
needsUpdateBank |= update(&bank.RollRatePID.Kd, value);
break;
case TXPIDSETTINGS_PIDS_ROLLRATEILIMIT:
needsUpdateBank |= update(&bank.RollRatePID.ILimit, value);
break;
case TXPIDSETTINGS_PIDS_ROLLRATERESP:
needsUpdateBank |= updateUint16(&bank.ManualRate.Roll, value);
break;
case TXPIDSETTINGS_PIDS_ROLLATTITUDEKP:
needsUpdateBank |= update(&bank.RollPI.Kp, value);
break;
case TXPIDSETTINGS_PIDS_ROLLATTITUDEKI:
needsUpdateBank |= update(&bank.RollPI.Ki, value);
break;
case TXPIDSETTINGS_PIDS_ROLLATTITUDEILIMIT:
needsUpdateBank |= update(&bank.RollPI.ILimit, value);
break;
case TXPIDSETTINGS_PIDS_ROLLATTITUDERESP:
needsUpdateBank |= updateUint8(&bank.RollMax, value);
break;
case TXPIDSETTINGS_PIDS_PITCHRATEKP:
needsUpdateBank |= update(&bank.PitchRatePID.Kp, value);
break;
case TXPIDSETTINGS_PIDS_PITCHRATEKI:
needsUpdateBank |= update(&bank.PitchRatePID.Ki, value);
break;
case TXPIDSETTINGS_PIDS_PITCHRATEKD:
needsUpdateBank |= update(&bank.PitchRatePID.Kd, value);
break;
case TXPIDSETTINGS_PIDS_PITCHRATEILIMIT:
needsUpdateBank |= update(&bank.PitchRatePID.ILimit, value);
break;
case TXPIDSETTINGS_PIDS_PITCHRATERESP:
needsUpdateBank |= updateUint16(&bank.ManualRate.Pitch, value);
break;
case TXPIDSETTINGS_PIDS_PITCHATTITUDEKP:
needsUpdateBank |= update(&bank.PitchPI.Kp, value);
break;
case TXPIDSETTINGS_PIDS_PITCHATTITUDEKI:
needsUpdateBank |= update(&bank.PitchPI.Ki, value);
break;
case TXPIDSETTINGS_PIDS_PITCHATTITUDEILIMIT:
needsUpdateBank |= update(&bank.PitchPI.ILimit, value);
break;
case TXPIDSETTINGS_PIDS_PITCHATTITUDERESP:
needsUpdateBank |= updateUint8(&bank.PitchMax, value);
break;
case TXPIDSETTINGS_PIDS_ROLLPITCHRATEKP:
needsUpdateBank |= update(&bank.RollRatePID.Kp, value);
needsUpdateBank |= update(&bank.PitchRatePID.Kp, value);
break;
case TXPIDSETTINGS_PIDS_ROLLPITCHRATEKI:
needsUpdateBank |= update(&bank.RollRatePID.Ki, value);
needsUpdateBank |= update(&bank.PitchRatePID.Ki, value);
break;
case TXPIDSETTINGS_PIDS_ROLLPITCHRATEKD:
needsUpdateBank |= update(&bank.RollRatePID.Kd, value);
needsUpdateBank |= update(&bank.PitchRatePID.Kd, value);
break;
case TXPIDSETTINGS_PIDS_ROLLPITCHRATEILIMIT:
needsUpdateBank |= update(&bank.RollRatePID.ILimit, value);
needsUpdateBank |= update(&bank.PitchRatePID.ILimit, value);
break;
case TXPIDSETTINGS_PIDS_ROLLPITCHRATERESP:
needsUpdateBank |= updateUint16(&bank.ManualRate.Roll, value);
needsUpdateBank |= updateUint16(&bank.ManualRate.Pitch, value);
break;
case TXPIDSETTINGS_PIDS_ROLLPITCHATTITUDEKP:
needsUpdateBank |= update(&bank.RollPI.Kp, value);
needsUpdateBank |= update(&bank.PitchPI.Kp, value);
break;
case TXPIDSETTINGS_PIDS_ROLLPITCHATTITUDEKI:
needsUpdateBank |= update(&bank.RollPI.Ki, value);
needsUpdateBank |= update(&bank.PitchPI.Ki, value);
break;
case TXPIDSETTINGS_PIDS_ROLLPITCHATTITUDEILIMIT:
needsUpdateBank |= update(&bank.RollPI.ILimit, value);
needsUpdateBank |= update(&bank.PitchPI.ILimit, value);
break;
case TXPIDSETTINGS_PIDS_ROLLPITCHATTITUDERESP:
needsUpdateBank |= updateUint8(&bank.RollMax, value);
needsUpdateBank |= updateUint8(&bank.PitchMax, value);
break;
case TXPIDSETTINGS_PIDS_YAWRATEKP:
needsUpdateBank |= update(&bank.YawRatePID.Kp, value);
break;
case TXPIDSETTINGS_PIDS_YAWRATEKI:
needsUpdateBank |= update(&bank.YawRatePID.Ki, value);
break;
case TXPIDSETTINGS_PIDS_YAWRATEKD:
needsUpdateBank |= update(&bank.YawRatePID.Kd, value);
break;
case TXPIDSETTINGS_PIDS_YAWRATEILIMIT:
needsUpdateBank |= update(&bank.YawRatePID.ILimit, value);
break;
case TXPIDSETTINGS_PIDS_YAWRATERESP:
needsUpdateBank |= updateUint16(&bank.ManualRate.Yaw, value);
break;
case TXPIDSETTINGS_PIDS_YAWATTITUDEKP:
needsUpdateBank |= update(&bank.YawPI.Kp, value);
break;
case TXPIDSETTINGS_PIDS_YAWATTITUDEKI:
needsUpdateBank |= update(&bank.YawPI.Ki, value);
break;
case TXPIDSETTINGS_PIDS_YAWATTITUDEILIMIT:
needsUpdateBank |= update(&bank.YawPI.ILimit, value);
break;
case TXPIDSETTINGS_PIDS_YAWATTITUDERESP:
needsUpdateBank |= updateUint8(&bank.YawMax, value);
break;
case TXPIDSETTINGS_PIDS_ROLLEXPO:
needsUpdateBank |= updateInt8(&bank.StickExpo.Roll, value);
break;
case TXPIDSETTINGS_PIDS_PITCHEXPO:
needsUpdateBank |= updateInt8(&bank.StickExpo.Pitch, value);
break;
case TXPIDSETTINGS_PIDS_ROLLPITCHEXPO:
needsUpdateBank |= updateInt8(&bank.StickExpo.Roll, value);
needsUpdateBank |= updateInt8(&bank.StickExpo.Pitch, value);
break;
case TXPIDSETTINGS_PIDS_YAWEXPO:
needsUpdateBank |= updateInt8(&bank.StickExpo.Yaw, value);
break;
case TXPIDSETTINGS_PIDS_GYROTAU:
needsUpdateStab |= update(&stab.GyroTau, value);
break;
case TXPIDSETTINGS_PIDS_ACROROLLFACTOR:
needsUpdateBank |= updateUint8(&bank.AcroInsanityFactor.Roll, value);
break;
case TXPIDSETTINGS_PIDS_ACROPITCHFACTOR:
needsUpdateBank |= updateUint8(&bank.AcroInsanityFactor.Pitch, value);
break;
case TXPIDSETTINGS_PIDS_ACROROLLPITCHFACTOR:
needsUpdateBank |= updateUint8(&bank.AcroInsanityFactor.Roll, value);
needsUpdateBank |= updateUint8(&bank.AcroInsanityFactor.Pitch, value);
break;
case TXPIDSETTINGS_PIDS_ACCELTAU:
needsUpdateAtt |= update(&att.AccelTau, value);
break;
case TXPIDSETTINGS_PIDS_ACCELKP:
needsUpdateAtt |= update(&att.AccelKp, value);
break;
case TXPIDSETTINGS_PIDS_ACCELKI:
needsUpdateAtt |= update(&att.AccelKi, value);
break;
#ifdef REVOLUTION
case TXPIDSETTINGS_PIDS_ALTITUDEPOSKP:
needsUpdateAltitude |= update(&altitude.VerticalPosP, value);
break;
case TXPIDSETTINGS_PIDS_ALTITUDEVELOCITYKP:
needsUpdateAltitude |= update(&altitude.VerticalVelPID.Kp, value);
break;
case TXPIDSETTINGS_PIDS_ALTITUDEVELOCITYKI:
needsUpdateAltitude |= update(&altitude.VerticalVelPID.Ki, value);
break;
case TXPIDSETTINGS_PIDS_ALTITUDEVELOCITYKD:
needsUpdateAltitude |= update(&altitude.VerticalVelPID.Kd, value);
break;
case TXPIDSETTINGS_PIDS_ALTITUDEVELOCITYBETA:
needsUpdateAltitude |= update(&altitude.VerticalVelPID.Beta, value);
break;
#endif
default:
PIOS_Assert(0);
}
}
}
if (needsUpdateStab) {
StabilizationSettingsSet(&stab);
}
if (needsUpdateAtt) {
AttitudeSettingsSet(&att);
}
#ifdef REVOLUTION
if (needsUpdateAltitude) {
AltitudeHoldSettingsSet(&altitude);
}
#endif
if (easyTuneEnabled && (inst.EasyTuneRatePIDRecalculateYaw != TXPIDSETTINGS_EASYTUNERATEPIDRECALCULATEYAW_FALSE)) {
float newKp = (bank.RollRatePID.Kp + bank.PitchRatePID.Kp) * .5f * inst.EasyTuneYawRateFactors.P;
needsUpdateBank |= update(&bank.YawRatePID.Kp, newKp);
needsUpdateBank |= update(&bank.YawRatePID.Ki, newKp * inst.EasyTuneYawRateFactors.I);
needsUpdateBank |= update(&bank.YawRatePID.Kd, newKp * inst.EasyTuneYawRateFactors.D);
}
if (needsUpdateBank) {
switch (inst.BankNumber) {
case 0:
StabilizationSettingsBank1Set((StabilizationSettingsBank1Data *)&bank);
break;
case 1:
StabilizationSettingsBank2Set((StabilizationSettingsBank2Data *)&bank);
break;
case 2:
StabilizationSettingsBank3Set((StabilizationSettingsBank3Data *)&bank);
break;
default:
return;
}
}
if (needsUpdateStab ||
needsUpdateAtt ||
#ifdef REVOLUTION
needsUpdateAltitude ||
#endif /* REVOLUTION */
needsUpdateBank) {
TxPIDStatusSet(&txpid_status);;
}
}
/**
* Scales input val from [inMin..inMax] range to [outMin..outMax].
* If val is out of input range (inMin <= inMax), it will be bound.
* (outMin > outMax) is ok, in that case output will be decreasing.
*
* \returns scaled value
*/
static float scale(float val, float inMin, float inMax, float outMin, float outMax)
{
// bound input value
if (val > inMax) {
val = inMax;
}
if (val < inMin) {
val = inMin;
}
// normalize input value to [0..1]
if (inMax <= inMin) {
val = 0.0f;
} else {
val = (val - inMin) / (inMax - inMin);
}
// update output bounds
if (outMin > outMax) {
float t = outMin;
outMin = outMax;
outMax = t;
val = 1.0f - val;
}
return (outMax - outMin) * val + outMin;
}
/**
* Updates var using val if needed.
* \returns 1 if updated, 0 otherwise
*/
static uint8_t update(float *var, float val)
{
/* FIXME: this is not an entirely correct way
* to check if the two floating point
* numbers are 'not equal'.
* Epsilon of 1e-9 is probably okay for the range
* of numbers we see here*/
if (fabsf(*var - val) > 1e-9f) {
*var = val;
return 1;
}
return 0;
}
/**
* Updates var using val if needed.
* \returns 1 if updated, 0 otherwise
*/
static uint8_t updateUint16(uint16_t *var, float val)
{
uint16_t roundedVal = (uint16_t)roundf(val);
if (*var != roundedVal) {
*var = roundedVal;
return 1;
}
return 0;
}
/**
* Initialise the module, called on startup
* \returns 0 on success or -1 if initialisation failed
*/
int32_t TxPIDInitialize(void)
{
bool txPIDEnabled;
HwSettingsOptionalModulesData optionalModules;
HwSettingsInitialize();
HwSettingsOptionalModulesGet(&optionalModules);
if (optionalModules.TxPID == HWSETTINGS_OPTIONALMODULES_ENABLED) {
txPIDEnabled = true;
} else {
txPIDEnabled = false;
}
if (txPIDEnabled) {
TxPIDSettingsInitialize();
AccessoryDesiredInitialize();
UAVObjEvent ev = {
.obj = AccessoryDesiredHandle(),
.instId = 0,
.event = 0,
.lowPriority = false,
};
EventPeriodicCallbackCreate(&ev, updatePIDs, SAMPLE_PERIOD_MS / portTICK_RATE_MS);
#if (TELEMETRY_UPDATE_PERIOD_MS != 0)
// Change StabilizationSettings update rate from OnChange to periodic
// to prevent telemetry link flooding with frequent updates in case of
// control channel jitter.
// Warning: saving to flash with this code active will change the
// StabilizationSettings update rate permanently. Use Metadata via
// browser to reset to defaults (telemetryAcked=true, OnChange).
UAVObjMetadata metadata;
StabilizationSettingsInitialize();
StabilizationSettingsGetMetadata(&metadata);
metadata.telemetryAcked = 0;
metadata.telemetryUpdateMode = UPDATEMODE_PERIODIC;
metadata.telemetryUpdatePeriod = TELEMETRY_UPDATE_PERIOD_MS;
StabilizationSettingsSetMetadata(&metadata);
#endif
return 0;
}
return -1;
}
/* stub: module has no module thread */
int32_t TxPIDStart(void)
{
return 0;
}
MODULE_INITCALL(TxPIDInitialize, TxPIDStart);
/**
* Update PIDs callback function
*/
static void updatePIDs(UAVObjEvent *ev)
{
if (ev->obj != AccessoryDesiredHandle()) {
return;
}
TxPIDSettingsData inst;
TxPIDSettingsGet(&inst);
if (inst.UpdateMode == TXPIDSETTINGS_UPDATEMODE_NEVER) {
return;
}
uint8_t armed;
FlightStatusArmedGet(&armed);
if ((inst.UpdateMode == TXPIDSETTINGS_UPDATEMODE_WHENARMED) &&
(armed == FLIGHTSTATUS_ARMED_DISARMED)) {
return;
}
StabilizationBankData bank;
switch (inst.BankNumber) {
case 0:
StabilizationSettingsBank1Get((StabilizationSettingsBank1Data *)&bank);
break;
case 1:
StabilizationSettingsBank2Get((StabilizationSettingsBank2Data *)&bank);
break;
case 2:
StabilizationSettingsBank2Get((StabilizationSettingsBank2Data *)&bank);
break;
default:
return;
}
StabilizationSettingsData stab;
StabilizationSettingsGet(&stab);
AccessoryDesiredData accessory;
uint8_t needsUpdateBank = 0;
uint8_t needsUpdateStab = 0;
// Loop through every enabled instance
for (uint8_t i = 0; i < TXPIDSETTINGS_PIDS_NUMELEM; i++) {
if (cast_struct_to_array(inst.PIDs, inst.PIDs.Instance1)[i] != TXPIDSETTINGS_PIDS_DISABLED) {
float value;
if (cast_struct_to_array(inst.Inputs, inst.Inputs.Instance1)[i] == TXPIDSETTINGS_INPUTS_THROTTLE) {
ManualControlCommandThrottleGet(&value);
value = scale(value,
inst.ThrottleRange.Min,
inst.ThrottleRange.Max,
cast_struct_to_array(inst.MinPID, inst.MinPID.Instance1)[i],
cast_struct_to_array(inst.MaxPID, inst.MaxPID.Instance1)[i]);
} else if (AccessoryDesiredInstGet(
cast_struct_to_array(inst.Inputs, inst.Inputs.Instance1)[i] - TXPIDSETTINGS_INPUTS_ACCESSORY0,
&accessory) == 0) {
value = scale(accessory.AccessoryVal, -1.0f, 1.0f,
cast_struct_to_array(inst.MinPID, inst.MinPID.Instance1)[i],
cast_struct_to_array(inst.MaxPID, inst.MaxPID.Instance1)[i]);
} else {
continue;
}
switch (cast_struct_to_array(inst.PIDs, inst.PIDs.Instance1)[i]) {
case TXPIDSETTINGS_PIDS_ROLLRATEKP:
needsUpdateBank |= update(&bank.RollRatePID.Kp, value);
break;
case TXPIDSETTINGS_PIDS_ROLLRATEKI:
needsUpdateBank |= update(&bank.RollRatePID.Ki, value);
break;
case TXPIDSETTINGS_PIDS_ROLLRATEKD:
needsUpdateBank |= update(&bank.RollRatePID.Kd, value);
break;
case TXPIDSETTINGS_PIDS_ROLLRATEILIMIT:
needsUpdateBank |= update(&bank.RollRatePID.ILimit, value);
break;
case TXPIDSETTINGS_PIDS_ROLLATTITUDEKP:
needsUpdateBank |= update(&bank.RollPI.Kp, value);
break;
case TXPIDSETTINGS_PIDS_ROLLATTITUDEKI:
needsUpdateBank |= update(&bank.RollPI.Ki, value);
break;
case TXPIDSETTINGS_PIDS_ROLLATTITUDEILIMIT:
needsUpdateBank |= update(&bank.RollPI.ILimit, value);
break;
case TXPIDSETTINGS_PIDS_PITCHRATEKP:
needsUpdateBank |= update(&bank.PitchRatePID.Kp, value);
break;
case TXPIDSETTINGS_PIDS_PITCHRATEKI:
needsUpdateBank |= update(&bank.PitchRatePID.Ki, value);
break;
case TXPIDSETTINGS_PIDS_PITCHRATEKD:
needsUpdateBank |= update(&bank.PitchRatePID.Kd, value);
break;
case TXPIDSETTINGS_PIDS_PITCHRATEILIMIT:
needsUpdateBank |= update(&bank.PitchRatePID.ILimit, value);
break;
case TXPIDSETTINGS_PIDS_PITCHATTITUDEKP:
needsUpdateBank |= update(&bank.PitchPI.Kp, value);
break;
case TXPIDSETTINGS_PIDS_PITCHATTITUDEKI:
needsUpdateBank |= update(&bank.PitchPI.Ki, value);
break;
case TXPIDSETTINGS_PIDS_PITCHATTITUDEILIMIT:
needsUpdateBank |= update(&bank.PitchPI.ILimit, value);
break;
case TXPIDSETTINGS_PIDS_ROLLPITCHRATEKP:
needsUpdateBank |= update(&bank.RollRatePID.Kp, value);
needsUpdateBank |= update(&bank.PitchRatePID.Kp, value);
break;
case TXPIDSETTINGS_PIDS_ROLLPITCHRATEKI:
needsUpdateBank |= update(&bank.RollRatePID.Ki, value);
needsUpdateBank |= update(&bank.PitchRatePID.Ki, value);
break;
case TXPIDSETTINGS_PIDS_ROLLPITCHRATEKD:
needsUpdateBank |= update(&bank.RollRatePID.Kd, value);
needsUpdateBank |= update(&bank.PitchRatePID.Kd, value);
break;
case TXPIDSETTINGS_PIDS_ROLLPITCHRATEILIMIT:
needsUpdateBank |= update(&bank.RollRatePID.ILimit, value);
needsUpdateBank |= update(&bank.PitchRatePID.ILimit, value);
break;
case TXPIDSETTINGS_PIDS_ROLLPITCHATTITUDEKP:
needsUpdateBank |= update(&bank.RollPI.Kp, value);
needsUpdateBank |= update(&bank.PitchPI.Kp, value);
break;
case TXPIDSETTINGS_PIDS_ROLLPITCHATTITUDEKI:
needsUpdateBank |= update(&bank.RollPI.Ki, value);
needsUpdateBank |= update(&bank.PitchPI.Ki, value);
break;
case TXPIDSETTINGS_PIDS_ROLLPITCHATTITUDEILIMIT:
needsUpdateBank |= update(&bank.RollPI.ILimit, value);
needsUpdateBank |= update(&bank.PitchPI.ILimit, value);
break;
case TXPIDSETTINGS_PIDS_YAWRATEKP:
needsUpdateBank |= update(&bank.YawRatePID.Kp, value);
break;
case TXPIDSETTINGS_PIDS_YAWRATEKI:
needsUpdateBank |= update(&bank.YawRatePID.Ki, value);
break;
case TXPIDSETTINGS_PIDS_YAWRATEKD:
needsUpdateBank |= update(&bank.YawRatePID.Kd, value);
break;
case TXPIDSETTINGS_PIDS_YAWRATEILIMIT:
needsUpdateBank |= update(&bank.YawRatePID.ILimit, value);
break;
case TXPIDSETTINGS_PIDS_YAWATTITUDEKP:
needsUpdateBank |= update(&bank.YawPI.Kp, value);
break;
case TXPIDSETTINGS_PIDS_YAWATTITUDEKI:
needsUpdateBank |= update(&bank.YawPI.Ki, value);
break;
case TXPIDSETTINGS_PIDS_YAWATTITUDEILIMIT:
needsUpdateBank |= update(&bank.YawPI.ILimit, value);
break;
case TXPIDSETTINGS_PIDS_GYROTAU:
needsUpdateStab |= update(&stab.GyroTau, value);
break;
default:
PIOS_Assert(0);
}
}
}
if (needsUpdateStab) {
StabilizationSettingsSet(&stab);
}
if (needsUpdateBank) {
switch (inst.BankNumber) {
case 0:
StabilizationSettingsBank1Set((StabilizationSettingsBank1Data *)&bank);
break;
case 1:
StabilizationSettingsBank2Set((StabilizationSettingsBank2Data *)&bank);
break;
case 2:
StabilizationSettingsBank3Set((StabilizationSettingsBank3Data *)&bank);
break;
default:
return;
}
}
}
/**
* Scales input val from [inMin..inMax] range to [outMin..outMax].
* If val is out of input range (inMin <= inMax), it will be bound.
* (outMin > outMax) is ok, in that case output will be decreasing.
*
* \returns scaled value
*/
static float scale(float val, float inMin, float inMax, float outMin, float outMax)
{
// bound input value
if (val > inMax) {
val = inMax;
}
if (val < inMin) {
val = inMin;
}
// normalize input value to [0..1]
if (inMax <= inMin) {
val = 0.0f;
} else {
val = (val - inMin) / (inMax - inMin);
}
// update output bounds
if (outMin > outMax) {
float t = outMin;
outMin = outMax;
outMax = t;
val = 1.0f - val;
}
return (outMax - outMin) * val + outMin;
}
/**
* Updates var using val if needed.
* \returns 1 if updated, 0 otherwise
*/
static uint8_t update(float *var, float val)
{
/* FIXME: this is not an entirely correct way
* to check if the two floating point
* numbers are 'not equal'.
* Epsilon of 1e-9 is probably okay for the range
* of numbers we see here*/
if (fabsf(*var - val) > 1e-9f) {
*var = val;
return 1;
}
return 0;
}