88 lines
2.6 KiB
C
88 lines
2.6 KiB
C
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/*
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ChibiOS/RT - Copyright (C) 2006-2007 Giovanni Di Sirio.
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This file is part of ChibiOS/RT.
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ChibiOS/RT is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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ChibiOS/RT is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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/**
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* @file pwm.h
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* @brief PWM Driver macros and structures.
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* @addtogroup PWM
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* @{
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*/
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#ifndef _PWM_H_
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#define _PWM_H_
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/**
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* @brief Driver state machine possible states.
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*/
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typedef enum {
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PWM_UNINIT = 0, /**< @brief Not initialized. */
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PWM_STOP = 1, /**< @brief Stopped. */
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PWM_READY = 2, /**< @brief Ready. */
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} pwmstate_t;
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/**
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* @brief PWM edge for callbacks.
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*/
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typedef enum {
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PWM_NONE = 0, /**< @brief No callback. */
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PWM_TO_ACTIVE_EDGE = 1, /**< @brief Enable on idle->active. */
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PWM_TO_IDLE_EDGE = 2, /**< @brief Enable on active->idle. */
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PWM_BOTH_EDGES = 3 /**< @brief Enable on both edges. */
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} pwmedge_t;
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/**
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* @brief PWM logic mode.
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*/
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typedef enum {
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PWM_ACTIVE_LOW = 0, /**< @brief Idle is logic level 1. */
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PWM_ACTIVE_HIGH = 1 /**< @brief Idle is logic level 0. */
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} pwmmode_t;
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/**
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* @brief PWM notification callback type.
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*
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* @param[in] active current channel output state
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*/
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typedef void (*pwmcallback_t)(bool_t active);
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#include "pwm_lld.h"
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#ifdef __cplusplus
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extern "C" {
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#endif
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void pwmInit(void);
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void pwmObjectInit(PWMDriver *pwmp);
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void pwmStart(PWMDriver *pwmp, const PWMConfig *config);
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void pwmStop(PWMDriver *pwmp);
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void pwmSetCallback(PWMDriver *pwmp,
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pwmchannel_t channel,
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pwmedge_t edge,
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pwmcallback_t callback);
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void pwmEnableChannel(PWMDriver *pwmp,
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pwmchannel_t channel,
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pwmcnt_t width);
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void pwmDisableChannel(PWMDriver *pwmp, pwmchannel_t channel);
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#ifdef __cplusplus
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}
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#endif
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#endif /* _PWM_H_ */
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/** @} */
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