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servo_cam_ctrl.h
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servo_cam_ctrl.h
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/*
* Copyright (C) 2010 The Paparazzi Team
*
* This file is part of paparazzi.
*
* paparazzi 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 2, or (at your option)
* any later version.
*
* paparazzi 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 paparazzi; see the file COPYING. If not, write to
* the Free Software Foundation, 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*
*/
/** \file servo_cam_ctrl.h
* \brief Digital Camera Control
*
* Provides the control of the shutter and the zoom of a digital camera
* through standard binary IOs of the board.
*
* Configuration:
* Since the API of led.h is used, connected pins must be defined as led
* numbers (usually in the airframe file):
* <define name="DC_SHUTTER_SERVO" value="10"/>
* <define name="DC_ZOOM_IN_SERVO" value="7"/>
* <define name="DC_ZOOM_OUT_SERVO" value="8"/>
* <define name="DC_POWER_SERVO" value="9"/>
* Related bank and pin must also be defined:
* <define name="LED_10_BANK" value="0"/>
* <define name="LED_10_PIN" value="2"/>
* The required initialization (dc_init()) and periodic (4Hz) process
*
*/
#ifndef servo_cam_ctrl_H
#define servo_cam_ctrl_H
// Include Standard Camera Control Interface
#include "dc.h"
// Include Servo and airframe servo channels
#include "std.h"
#include "commands.h"
#include "generated/airframe.h"
extern uint8_t dc_timer;
static inline void servo_cam_ctrl_init(void)
{
// Call common DC init
dc_init();
// Do LED specific DC init
dc_timer = 0;
}
#define DC_PUSH(X) commands[X] = -MAX_PPRZ;
#define DC_RELEASE(X) commands[X] = MAX_PPRZ;
#ifndef DC_SHUTTER_DELAY
#define DC_SHUTTER_DELAY 2 /* 4Hz -> 0.5s */
#endif
#ifndef DC_SHUTTER_SERVO
#error DC: Please specify at least a SHUTTER SERVO
#endif
/* Command The Camera */
static inline void dc_send_command(uint8_t cmd)
{
dc_timer = DC_SHUTTER_DELAY;
switch (cmd)
{
case DC_SHOOT:
DC_PUSH(DC_SHUTTER_SERVO);
dc_send_shot_position();
break;
#ifdef DC_ZOOM_IN_SERVO
case DC_TALLER:
DC_PUSH(DC_ZOOM_IN_SERVO);
break;
#endif
#ifdef DC_ZOOM_OUT_SERVO
case DC_WIDER:
DC_PUSH(DC_ZOOM_OUT_SERVO);
break;
#endif
#ifdef DC_POWER_SERVO
case DC_POWER:
DC_PUSH(DC_POWER_SERVO);
break;
#endif
default:
break;
}
}
/* 4Hz Periodic */
static inline void servo_cam_ctrl_periodic( void )
{
if (dc_timer) {
dc_timer--;
} else {
DC_RELEASE(DC_SHUTTER_SERVO);
#ifdef DC_ZOOM_IN_SERVO
DC_RELEASE(DC_ZOOM_IN_SERVO);
#endif
#ifdef DC_ZOOM_OUT_SERVO
DC_RELEASE(DC_ZOOM_OUT_SERVO);
#endif
#ifdef DC_POWER_SERVO
DC_RELEASE(DC_POWER_SERVO);
#endif
}
// Common DC Periodic task
dc_periodic_4Hz();
}
#endif // DC_H