From b46d05835b9ff55c1f21d37483202888eeea1656 Mon Sep 17 00:00:00 2001 From: px4dev Date: Fri, 25 Jan 2013 22:58:33 -0800 Subject: Implement settable failsafe values for PWM outputs. By default in failsafe mode, PWM output pulses are not generated. --- apps/px4io/registers.c | 29 +++++++++++++++++++++++++---- 1 file changed, 25 insertions(+), 4 deletions(-) (limited to 'apps/px4io/registers.c') diff --git a/apps/px4io/registers.c b/apps/px4io/registers.c index a4d81fd6e..22ed1de70 100644 --- a/apps/px4io/registers.c +++ b/apps/px4io/registers.c @@ -118,6 +118,11 @@ uint16_t r_page_actuators[IO_SERVO_COUNT]; */ uint16_t r_page_servos[IO_SERVO_COUNT]; +/** + * Servo PWM values + */ +uint16_t r_page_servo_failsafe[IO_SERVO_COUNT]; + /** * Scaled/routed RC input */ @@ -166,7 +171,7 @@ registers_set(uint8_t page, uint8_t offset, const uint16_t *values, unsigned num /* XXX we should cause a mixer tick ASAP */ system_state.fmu_data_received_time = hrt_absolute_time(); r_status_flags |= PX4IO_P_STATUS_FLAGS_FMU_OK; - r_status_flags &= ~PX4IO_P_STATUS_FLAGS_RAW_PPM; + r_status_flags &= ~PX4IO_P_STATUS_FLAGS_RAW_PWM; break; /* handle raw PWM input */ @@ -183,9 +188,24 @@ registers_set(uint8_t page, uint8_t offset, const uint16_t *values, unsigned num values++; } - /* XXX need to force these values to the servos */ + /* XXX we should cause a mixer tick ASAP */ system_state.fmu_data_received_time = hrt_absolute_time(); - r_status_flags |= PX4IO_P_STATUS_FLAGS_FMU_OK | PX4IO_P_STATUS_FLAGS_RAW_PPM; + r_status_flags |= PX4IO_P_STATUS_FLAGS_FMU_OK | PX4IO_P_STATUS_FLAGS_RAW_PWM; + break; + + /* handle setup for servo failsafe values */ + case PX4IO_PAGE_FAILSAFE_PWM: + + /* copy channel data */ + while ((offset < PX4IO_CONTROL_CHANNELS) && (num_values > 0)) { + + /* XXX range-check value? */ + r_page_servo_failsafe[offset] = *values; + + offset++; + num_values--; + values++; + } break; /* handle text going to the mixer parser */ @@ -353,7 +373,7 @@ registers_set_one(uint8_t page, uint8_t offset, uint16_t value) int registers_get(uint8_t page, uint8_t offset, uint16_t **values, unsigned *num_values) { -#define SELECT_PAGE(_page_name) { *values = _page_name; *num_values = sizeof(_page_name) / sizeof(_page_name[0]); } +#define SELECT_PAGE(_page_name) { *values = (uint16_t *)_page_name; *num_values = sizeof(_page_name) / sizeof(_page_name[0]); } switch (page) { @@ -441,6 +461,7 @@ registers_get(uint8_t page, uint8_t offset, uint16_t **values, unsigned *num_val COPY_PAGE(PX4IO_PAGE_SETUP, r_page_setup); COPY_PAGE(PX4IO_PAGE_CONTROLS, r_page_controls); COPY_PAGE(PX4IO_PAGE_RC_CONFIG, r_page_rc_input_config); + COPY_PAGE(PX4IO_PAGE_FAILSAFE_PWM, r_page_servo_failsafe); default: return -1; -- cgit v1.2.3