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62 lines
2.1 KiB
C
62 lines
2.1 KiB
C
/**
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******************************************************************************
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* @addtogroup PIOS PIOS Core hardware abstraction layer
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* @{
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* @addtogroup PIOS_RCVR RCVR layer functions
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* @brief Hardware communication layer
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* @{
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*
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* @file pios_rcvr.h
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* @author The OpenPilot Team, http://www.openpilot.org Copyright (C) 2010.
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* @brief RCVR layer functions header
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* @see The GNU Public License (GPL) Version 3
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*
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*****************************************************************************/
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/*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
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* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#ifndef PIOS_RCVR_H
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#define PIOS_RCVR_H
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struct pios_rcvr_driver {
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void (*init)(uint32_t id);
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int32_t (*read)(uint32_t id, uint8_t channel);
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xSemaphoreHandle (*get_semaphore)(uint32_t id, uint8_t channel);
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uint8_t (*get_quality)(uint32_t id);
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};
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/* Public Functions */
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extern int32_t PIOS_RCVR_Read(uint32_t rcvr_id, uint8_t channel);
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extern uint8_t PIOS_RCVR_GetQuality(uint32_t rcvr_id);
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extern xSemaphoreHandle PIOS_RCVR_GetSemaphore(uint32_t rcvr_id, uint8_t channel);
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/*! Define error codes for PIOS_RCVR_Get */
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enum PIOS_RCVR_errors {
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/*! Indicates that a failsafe condition or missing receiver detected for that channel */
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PIOS_RCVR_TIMEOUT = -1,
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/*! Channel is invalid for this driver (usually out of range supported) */
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PIOS_RCVR_INVALID = -2,
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/*! Indicates that the driver for this channel has not been initialized */
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PIOS_RCVR_NODRIVER = -3
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};
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#endif /* PIOS_RCVR_H */
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/**
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* @}
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* @}
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*/
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