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-rw-r--r--src/drivers/drv_pwm_output.h7
-rw-r--r--src/drivers/px4io/px4io.cpp25
2 files changed, 28 insertions, 4 deletions
diff --git a/src/drivers/drv_pwm_output.h b/src/drivers/drv_pwm_output.h
index 5aff6825b..bc586f395 100644
--- a/src/drivers/drv_pwm_output.h
+++ b/src/drivers/drv_pwm_output.h
@@ -205,10 +205,13 @@ ORB_DECLARE(output_pwm);
#define PWM_SERVO_GET_DISABLE_LOCKDOWN _IOC(_PWM_SERVO_BASE, 22)
/** force safety switch off (to disable use of safety switch) */
-#define PWM_SERVO_SET_FORCE_SAFETY_OFF _IOC(_PWM_SERVO_BASE, 23)
+#define PWM_SERVO_SET_FORCE_SAFETY_OFF _IOC(_PWM_SERVO_BASE, 23)
/** force failsafe mode (failsafe values are set immediately even if failsafe condition not met) */
-#define PWM_SERVO_SET_FORCE_FAILSAFE _IOC(_PWM_SERVO_BASE, 24)
+#define PWM_SERVO_SET_FORCE_FAILSAFE _IOC(_PWM_SERVO_BASE, 24)
+
+/** make failsafe non-recoverable (termination) if it occurs */
+#define PWM_SERVO_SET_TERMINATION_FAILSAFE _IOC(_PWM_SERVO_BASE, 25)
/*
*
diff --git a/src/drivers/px4io/px4io.cpp b/src/drivers/px4io/px4io.cpp
index 97919538f..6f8d6f5f6 100644
--- a/src/drivers/px4io/px4io.cpp
+++ b/src/drivers/px4io/px4io.cpp
@@ -1169,12 +1169,21 @@ PX4IO::io_set_arming_state()
clear |= PX4IO_P_SETUP_ARMING_LOCKDOWN;
}
- if (armed.force_failsafe) {
+ /* Do not set failsafe if circuit breaker is enabled */
+ if (armed.force_failsafe && !circuit_breaker_enabled("CBRK_FLIGHTTERM", CBRK_FLIGHTTERM_KEY)) {
set |= PX4IO_P_SETUP_ARMING_FORCE_FAILSAFE;
} else {
clear |= PX4IO_P_SETUP_ARMING_FORCE_FAILSAFE;
}
+ // XXX this is for future support in the commander
+ // but can be removed if unneeded
+ // if (armed.termination_failsafe) {
+ // set |= PX4IO_P_SETUP_ARMING_TERMINATION_FAILSAFE;
+ // } else {
+ // clear |= PX4IO_P_SETUP_ARMING_TERMINATION_FAILSAFE;
+ // }
+
if (armed.ready_to_arm) {
set |= PX4IO_P_SETUP_ARMING_IO_ARM_OK;
@@ -2038,7 +2047,8 @@ PX4IO::print_status(bool extended_status)
((arming & PX4IO_P_SETUP_ARMING_INAIR_RESTART_OK) ? " INAIR_RESTART_OK" : ""),
((arming & PX4IO_P_SETUP_ARMING_ALWAYS_PWM_ENABLE) ? " ALWAYS_PWM_ENABLE" : ""),
((arming & PX4IO_P_SETUP_ARMING_LOCKDOWN) ? " LOCKDOWN" : ""),
- ((arming & PX4IO_P_SETUP_ARMING_FORCE_FAILSAFE) ? " FORCE_FAILSAFE" : "")
+ ((arming & PX4IO_P_SETUP_ARMING_FORCE_FAILSAFE) ? " FORCE_FAILSAFE" : ""),
+ ((arming & PX4IO_P_SETUP_ARMING_TERMINATION_FAILSAFE) ? " TERM_FAILSAFE" : "")
);
#ifdef CONFIG_ARCH_BOARD_PX4FMU_V1
printf("rates 0x%04x default %u alt %u relays 0x%04x\n",
@@ -2262,6 +2272,17 @@ PX4IO::ioctl(file * filep, int cmd, unsigned long arg)
}
break;
+ case PWM_SERVO_SET_TERMINATION_FAILSAFE:
+ /* if failsafe occurs, do not allow the system to recover */
+ if (arg == 0) {
+ /* clear termination failsafe flag */
+ ret = io_reg_modify(PX4IO_PAGE_SETUP, PX4IO_P_SETUP_ARMING, PX4IO_P_SETUP_ARMING_TERMINATION_FAILSAFE, 0);
+ } else {
+ /* set termination failsafe flag */
+ ret = io_reg_modify(PX4IO_PAGE_SETUP, PX4IO_P_SETUP_ARMING, 0, PX4IO_P_SETUP_ARMING_TERMINATION_FAILSAFE);
+ }
+ break;
+
case DSM_BIND_START:
/* only allow DSM2, DSM-X and DSM-X with more than 7 channels */