* arch/arm/src/sama5/sam_pwm.h
*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership. The
* ASF licenses this file to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance with the
* License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
* License for the specific language governing permissions and limitations
* under the License.
*
****************************************************************************/
#ifndef __ARCH_ARM_SRC_SAMA5_SAM_PWM_H
#define __ARCH_ARM_SRC_SAMA5_SAM_PWM_H
* Included Files
****************************************************************************/
#include <nuttx/config.h>
#include "chip.h"
#include "hardware/sam_pwm.h"
#ifdef CONFIG_SAMA5_PWM
* Pre-processor Definitions
****************************************************************************/
* If not, then why is the PWM enabled?
*/
#if !defined(CONFIG_SAMA5_PWM_CHAN0) && !defined(CONFIG_SAMA5_PWM_CHAN1) && \
!defined(CONFIG_SAMA5_PWM_CHAN2) && !defined(CONFIG_SAMA5_PWM_CHAN3)
# error "No PWM channels configured"
# undef CONFIG_SAMA5_PWM
#endif
* Public Types
****************************************************************************/
* Public Data
****************************************************************************/
#ifndef __ASSEMBLY__
#undef EXTERN
#if defined(__cplusplus)
#define EXTERN extern "C"
extern "C"
{
#else
#define EXTERN extern
#endif
* Public Functions Prototypes
****************************************************************************/
* Name: sam_pwminitialize
*
* Description:
* Initialize one timer for use with the upper_level PWM driver.
*
* Input Parameters:
* channel - A number identifying the PWM channel use.
*
* Returned Value:
* On success, a pointer to the SAMA5 lower half PWM driver is returned.
* NULL is returned on any failure.
*
****************************************************************************/
struct pwm_lowerhalf_s *sam_pwminitialize(int channel);
#undef EXTERN
#if defined(__cplusplus)
}
#endif
#endif
#endif
#endif