Arduino/hardware/sam/system/libsam/include/pwmc.h

/* ----------------------------------------------------------------------------
 *         ATMEL Microcontroller Software Support
 * ----------------------------------------------------------------------------
 * Copyright (c) 2009, Atmel Corporation
 *
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 *
 * - Redistributions of source code must retain the above copyright notice,
 * this list of conditions and the disclaimer below.
 *
 * Atmel's name may not be used to endorse or promote products derived from
 * this software without specific prior written permission.
 *
 * DISCLAIMER: THIS SOFTWARE IS PROVIDED BY ATMEL "AS IS" AND ANY EXPRESS OR
 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT ARE
 * DISCLAIMED. IN NO EVENT SHALL ATMEL BE LIABLE FOR ANY DIRECT, INDIRECT,
 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA,
 * OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
 * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
 * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 * ----------------------------------------------------------------------------
 */

/**
 * \file
 *
 * \par Purpose
 *
 * Interface for configuration the Pulse Width Modulation Controller (PWM) peripheral.
 *
 * \par Usage
 *
 *    -# Configures PWM clocks A & B to run at the given frequencies using
 *       \ref PWMC_ConfigureClocks().
 *    -# Configure PWMC channel using \ref PWMC_ConfigureChannel(), \ref PWMC_ConfigureChannelExt()
 *       \ref PWMC_SetPeriod(), \ref PWMC_SetDutyCycle() and \ref PWMC_SetDeadTime().
 *    -# Enable & disable channel using \ref PWMC_EnableChannel() and
 *       \ref PWMC_DisableChannel().
 *    -# Enable & disable the period interrupt for the given PWM channel using
 *       \ref PWMC_EnableChannelIt() and \ref PWMC_DisableChannelIt().
 *    -# Enable & disable the selected interrupts sources on a PWMC peripheral
 *       using  \ref PWMC_EnableIt() and \ref PWMC_DisableIt().
 *    -# Control syncronous channel using \ref PWMC_ConfigureSyncChannel(),
 *       \ref PWMC_SetSyncChannelUpdatePeriod() and \ref PWMC_SetSyncChannelUpdateUnlock().
 *    -# Control PWM override output using \ref PWMC_SetOverrideValue(),
 *       \ref PWMC_EnableOverrideOutput() and \ref PWMC_DisableOverrideOutput().
 *    -# Send data through the transmitter using \ref PWMC_WriteBuffer().
 *
 */

#ifndef _PWMC_
#define _PWMC_

/*----------------------------------------------------------------------------
 *        Headers
 *----------------------------------------------------------------------------*/

#include "chip.h"

#include <stdint.h>

#ifdef __cplusplus
 extern "C" {
#endif

/*----------------------------------------------------------------------------
 *        Exported functions
 *----------------------------------------------------------------------------*/

extern void PWMC_ConfigureChannel(
    Pwm* pPwm,
    uint8_t channel,
    uint32_t prescaler,
    uint32_t alignment,
    uint32_t polarity);
extern void PWMC_ConfigureChannelExt(
    Pwm* pPwm,
    uint8_t channel,
    uint32_t prescaler,
    uint32_t alignment,
    uint32_t polarity,
    uint32_t countEventSelect,
    uint32_t DTEnable,
    uint32_t DTHInverte,
    uint32_t DTLInverte);
extern void PWMC_ConfigureClocks(uint32_t clka, uint32_t clkb, uint32_t mck);
extern void PWMC_SetPeriod( Pwm* pPwm, uint8_t channel, uint16_t period);
extern void PWMC_SetDutyCycle( Pwm* pPwm, uint8_t channel, uint16_t duty);
extern void PWMC_SetDeadTime( Pwm* pPwm, uint8_t channel, uint16_t timeH, uint16_t timeL);
extern void PWMC_ConfigureSyncChannel( Pwm* pPwm,
    uint32_t channels,
    uint32_t updateMode,
    uint32_t requestMode,
    uint32_t requestComparisonSelect);
extern void PWMC_SetSyncChannelUpdatePeriod( Pwm* pPwm, uint8_t period);
extern void PWMC_SetSyncChannelUpdateUnlock( Pwm* pPwm );
extern void PWMC_EnableChannel( Pwm* pPwm, uint8_t channel);
extern void PWMC_DisableChannel( Pwm* pPwm, uint8_t channel);
extern void PWMC_EnableChannelIt( Pwm* pPwm, uint8_t channel);
extern void PWMC_DisableChannelIt( Pwm* pPwm, uint8_t channel);
extern void PWMC_EnableIt( Pwm* pPwm, uint32_t sources1, uint32_t sources2);
extern void PWMC_DisableIt( Pwm* pPwm, uint32_t sources1, uint32_t sources2);
extern uint8_t PWMC_WriteBuffer(Pwm *pwmc,
    void *buffer,
    uint32_t length);
extern void PWMC_SetOverrideValue( Pwm* pPwm, uint32_t value);
extern void PWMC_EnableOverrideOutput( Pwm* pPwm, uint32_t value, uint32_t sync);
extern void PWMC_DisableOverrideOutput( Pwm* pPwm, uint32_t value, uint32_t sync);
extern void PWMC_SetFaultMode( Pwm* pPwm, uint32_t mode);
extern void PWMC_FaultClear( Pwm* pPwm, uint32_t fault);
extern void PWMC_SetFaultProtectionValue( Pwm* pPwm, uint32_t value);
extern void PWMC_EnableFaultProtection( Pwm* pPwm, uint32_t value);
extern void PWMC_ConfigureComparisonUnit( Pwm* pPwm, uint32_t x, uint32_t value, uint32_t mode);
extern void PWMC_ConfigureEventLineMode( Pwm* pPwm, uint32_t x, uint32_t mode);

#ifdef __cplusplus
}
#endif

#endif /* #ifndef _PWMC_ */