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LibrePilot/flight/PiOS/Common/pios_gcsrcvr.c
Stacey Sheldon 829b8b83f6 rcvr: Add GCS receiver driver for rcvr via telemetry
This allows the GCS to emulate a receiver device via the
telemetry link.

Select "GCS" as your input type in the manualcontrol config
screen and calibrate it as normal.

Note: The expected values for the channels are in microseconds
      just like a PWM or PPM input device.  The channel values
      are validated against minimum/maximum pulse lengths just
      like normal receivers.
2011-08-02 01:22:04 -04:00

76 lines
2.1 KiB
C

/**
******************************************************************************
* @addtogroup PIOS PIOS Core hardware abstraction layer
* @{
* @addtogroup PIOS_GCSRCVR GCS Receiver Input Functions
* @brief Code to read the channels within the GCS Receiver UAVObject
* @{
*
* @file pios_gcsrcvr.c
* @author The OpenPilot Team, http://www.openpilot.org Copyright (C) 2010.
* @brief GCS Input functions (STM32 dependent)
* @see The GNU Public License (GPL) Version 3
*
*****************************************************************************/
/*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
/* Project Includes */
#include "pios.h"
#if defined(PIOS_INCLUDE_GCSRCVR)
#include "pios_gcsrcvr_priv.h"
static GCSReceiverData gcsreceiverdata;
/* Provide a RCVR driver */
static int32_t PIOS_GCSRCVR_Get(uint32_t rcvr_id, uint8_t channel);
const struct pios_rcvr_driver pios_gcsrcvr_rcvr_driver = {
.read = PIOS_GCSRCVR_Get,
};
static void gcsreceiver_updated(UAVObjEvent * ev)
{
if (ev->obj == GCSReceiverHandle()) {
GCSReceiverGet(&gcsreceiverdata);
}
}
void PIOS_GCSRCVR_Init(void)
{
/* Register uavobj callback */
GCSReceiverConnectCallback (gcsreceiver_updated);
}
static int32_t PIOS_GCSRCVR_Get(uint32_t rcvr_id, uint8_t channel)
{
if (channel >= GCSRECEIVER_CHANNEL_NUMELEM) {
/* channel is out of range */
return -1;
}
return (gcsreceiverdata.Channel[channel]);
}
#endif /* PIOS_INCLUDE_GCSRCVR */
/**
* @}
* @}
*/