static int
mixer_callback(uintptr_t handle,
uint8_t control_group,
uint8_t control_index,
float &control)
{
if (control_group >= PX4IO_CONTROL_GROUPS)
return -1;
switch (source) {
case MIX_FMU:
if (control_index < PX4IO_CONTROL_CHANNELS && control_group < PX4IO_CONTROL_GROUPS ) {
control = REG_TO_FLOAT(r_page_controls[CONTROL_PAGE_INDEX(control_group, control_index)]);
break;
}
return -1;
case MIX_OVERRIDE:
if (r_page_rc_input[PX4IO_P_RC_VALID] & (1 << CONTROL_PAGE_INDEX(control_group, control_index))) {
control = REG_TO_FLOAT(r_page_rc_input[PX4IO_P_RC_BASE + control_index]);
break;
}
return -1;
case MIX_OVERRIDE_FMU_OK:
/* FMU is ok but we are in override mode, use direct rc control for the available rc channels. The remaining channels are still controlled by the fmu */
if (r_page_rc_input[PX4IO_P_RC_VALID] & (1 << CONTROL_PAGE_INDEX(control_group, control_index))) {
control = REG_TO_FLOAT(r_page_rc_input[PX4IO_P_RC_BASE + control_index]);
break;
} else if (control_index < PX4IO_CONTROL_CHANNELS && control_group < PX4IO_CONTROL_GROUPS) {
control = REG_TO_FLOAT(r_page_controls[CONTROL_PAGE_INDEX(control_group, control_index)]);
break;
}
return -1;
case MIX_FAILSAFE:
case MIX_NONE:
control = 0.0f;
return -1;
}
return 0;
}
static int
mixer_callback(uintptr_t handle,
uint8_t control_group,
uint8_t control_index,
float &control)
{
if (control_group >= PX4IO_CONTROL_GROUPS) {
return -1;
}
switch (source) {
case MIX_FMU:
if (control_index < PX4IO_CONTROL_CHANNELS && control_group < PX4IO_CONTROL_GROUPS) {
control = REG_TO_FLOAT(r_page_controls[CONTROL_PAGE_INDEX(control_group, control_index)]);
break;
}
return -1;
case MIX_OVERRIDE:
if (r_page_rc_input[PX4IO_P_RC_VALID] & (1 << CONTROL_PAGE_INDEX(control_group, control_index))) {
control = REG_TO_FLOAT(r_page_rc_input[PX4IO_P_RC_BASE + control_index]);
break;
}
return -1;
case MIX_OVERRIDE_FMU_OK:
/* FMU is ok but we are in override mode, use direct rc control for the available rc channels. The remaining channels are still controlled by the fmu */
if (r_page_rc_input[PX4IO_P_RC_VALID] & (1 << CONTROL_PAGE_INDEX(control_group, control_index))) {
control = REG_TO_FLOAT(r_page_rc_input[PX4IO_P_RC_BASE + control_index]);
break;
} else if (control_index < PX4IO_CONTROL_CHANNELS && control_group < PX4IO_CONTROL_GROUPS) {
control = REG_TO_FLOAT(r_page_controls[CONTROL_PAGE_INDEX(control_group, control_index)]);
break;
}
return -1;
case MIX_FAILSAFE:
case MIX_NONE:
control = 0.0f;
return -1;
}
/* apply trim offsets for override channels */
if (source == MIX_OVERRIDE || source == MIX_OVERRIDE_FMU_OK) {
if (control_group == actuator_controls_s::GROUP_INDEX_ATTITUDE &&
control_index == actuator_controls_s::INDEX_ROLL) {
control *= REG_TO_FLOAT(r_setup_scale_roll);
control += REG_TO_FLOAT(r_setup_trim_roll);
} else if (control_group == actuator_controls_s::GROUP_INDEX_ATTITUDE &&
control_index == actuator_controls_s::INDEX_PITCH) {
control *= REG_TO_FLOAT(r_setup_scale_pitch);
control += REG_TO_FLOAT(r_setup_trim_pitch);
} else if (control_group == actuator_controls_s::GROUP_INDEX_ATTITUDE &&
control_index == actuator_controls_s::INDEX_YAW) {
control *= REG_TO_FLOAT(r_setup_scale_yaw);
control += REG_TO_FLOAT(r_setup_trim_yaw);
}
}
/* limit output */
if (control > 1.0f) {
control = 1.0f;
} else if (control < -1.0f) {
control = -1.0f;
}
/* motor spinup phase - lock throttle to zero */
if ((pwm_limit.state == PWM_LIMIT_STATE_RAMP) || (should_arm_nothrottle && !should_arm)) {
if ((control_group == actuator_controls_s::GROUP_INDEX_ATTITUDE ||
control_group == actuator_controls_s::GROUP_INDEX_ATTITUDE_ALTERNATE) &&
control_index == actuator_controls_s::INDEX_THROTTLE) {
/* limit the throttle output to zero during motor spinup,
* as the motors cannot follow any demand yet
*/
control = 0.0f;
}
}
/* only safety off, but not armed - set throttle as invalid */
if (should_arm_nothrottle && !should_arm) {
if ((control_group == actuator_controls_s::GROUP_INDEX_ATTITUDE ||
control_group == actuator_controls_s::GROUP_INDEX_ATTITUDE_ALTERNATE) &&
control_index == actuator_controls_s::INDEX_THROTTLE) {
/* mark the throttle as invalid */
control = NAN_VALUE;
}
}
return 0;
}
