diff options
Diffstat (limited to 'src/drivers/drv_rc_input.h')
-rw-r--r-- | src/drivers/drv_rc_input.h | 54 |
1 files changed, 50 insertions, 4 deletions
diff --git a/src/drivers/drv_rc_input.h b/src/drivers/drv_rc_input.h index 6b87141e9..20763e265 100644 --- a/src/drivers/drv_rc_input.h +++ b/src/drivers/drv_rc_input.h @@ -1,6 +1,6 @@ /**************************************************************************** * - * Copyright (c) 2012, 2013 PX4 Development Team. All rights reserved. + * Copyright (c) 2012-2014 PX4 Development Team. All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions @@ -63,6 +63,11 @@ #define RC_INPUT_MAX_CHANNELS 18 /** + * Maximum RSSI value + */ +#define RC_INPUT_RSSI_MAX 255 + +/** * Input signal type, value is a control position from zero to 100 * percent. */ @@ -83,8 +88,11 @@ enum RC_INPUT_SOURCE { * on the board involved. */ struct rc_input_values { - /** decoding time */ - uint64_t timestamp; + /** publication time */ + uint64_t timestamp_publication; + + /** last valid reception time */ + uint64_t timestamp_last_signal; /** number of channels actually being seen */ uint32_t channel_count; @@ -92,6 +100,40 @@ struct rc_input_values { /** receive signal strength indicator (RSSI): < 0: Undefined, 0: no signal, 255: full reception */ int32_t rssi; + /** + * explicit failsafe flag: true on TX failure or TX out of range , false otherwise. + * Only the true state is reliable, as there are some (PPM) receivers on the market going + * into failsafe without telling us explicitly. + * */ + bool rc_failsafe; + + /** + * RC receiver connection status: True,if no frame has arrived in the expected time, false otherwise. + * True usally means that the receiver has been disconnected, but can also indicate a radio link loss on "stupid" systems. + * Will remain false, if a RX with failsafe option continues to transmit frames after a link loss. + * */ + bool rc_lost; + + /** + * Number of lost RC frames. + * Note: intended purpose: observe the radio link quality if RSSI is not available + * This value must not be used to trigger any failsafe-alike funtionality. + * */ + uint16_t rc_lost_frame_count; + + /** + * Number of total RC frames. + * Note: intended purpose: observe the radio link quality if RSSI is not available + * This value must not be used to trigger any failsafe-alike funtionality. + * */ + uint16_t rc_total_frame_count; + + /** + * Length of a single PPM frame. + * Zero for non-PPM systems + */ + uint16_t rc_ppm_frame_length; + /** Input source */ enum RC_INPUT_SOURCE input_source; @@ -107,8 +149,12 @@ ORB_DECLARE(input_rc); #define _RC_INPUT_BASE 0x2b00 /** Fetch R/C input values into (rc_input_values *)arg */ - #define RC_INPUT_GET _IOC(_RC_INPUT_BASE, 0) +/** Enable RSSI input via ADC */ +#define RC_INPUT_ENABLE_RSSI_ANALOG _IOC(_RC_INPUT_BASE, 1) + +/** Enable RSSI input via PWM signal */ +#define RC_INPUT_ENABLE_RSSI_PWM _IOC(_RC_INPUT_BASE, 2) #endif /* _DRV_RC_INPUT_H */ |