MicroAPRS/bertos/cpu/avr/drv/pwm_avr.h

73 lines
2.1 KiB
C

/**
* \file
* <!--
* This file is part of BeRTOS.
*
* Bertos 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 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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*
* As a special exception, you may use this file as part of a free software
* library without restriction. Specifically, if other files instantiate
* templates or use macros or inline functions from this file, or you compile
* this file and link it with other files to produce an executable, this
* file does not by itself cause the resulting executable to be covered by
* the GNU General Public License. This exception does not however
* invalidate any other reasons why the executable file might be covered by
* the GNU General Public License.
*
* Copyright 2007 Develer S.r.l. (http://www.develer.com/)
*
* -->
*
* \brief Low-level PWM module for AVR (interface).
*
*
* \author Daniele Basile <asterix@develer.com>
*
*/
#ifndef DRV_PWM_AVR_H
#define DRV_PWM_AVR_H
#include "hw/pwm_map.h"
#include <cpu/types.h>
#define PWM_HW_MAX_PRESCALER_STEP 10
#define PWM_HW_MAX_PERIOD 0xFFFF
/**
* Type definition for pwm period.
*/
typedef uint16_t pwm_period_t;
/**
* Structur definition for pwm driver.
*/
typedef struct PwmChannel
{
/* */
} PwmChannel;
void pwm_hw_init(void);
void pwm_hw_setFrequency(PwmDev dev, uint32_t freq);
void pwm_hw_setDutyUnlock(PwmDev dev, uint16_t duty);
void pwm_hw_disable(PwmDev dev);
void pwm_hw_enable(PwmDev dev);
void pwm_hw_setPolarity(PwmDev dev, bool pol);
pwm_period_t pwm_hw_getPeriod(PwmDev dev);
#endif /* DRV_ADC_AT91_H */