Imported ChibiOS/RT 2.0.6.
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121
ChibiOS_2.0.6/os/hal/templates/pwm_lld.h
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ChibiOS_2.0.6/os/hal/templates/pwm_lld.h
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/*
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ChibiOS/RT - Copyright (C) 2006,2007,2008,2009,2010 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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A special exception to the GPL can be applied should you wish to distribute
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a combined work that includes ChibiOS/RT, without being obliged to provide
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the source code for any proprietary components. See the file exception.txt
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for full details of how and when the exception can be applied.
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*/
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/**
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* @file templates/pwm_lld.h
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* @brief PWM Driver subsystem low level driver header template.
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*
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* @addtogroup PWM_LLD
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* @{
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*/
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#ifndef _PWM_LLD_H_
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#define _PWM_LLD_H_
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/*===========================================================================*/
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/* Driver constants. */
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/*===========================================================================*/
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/*===========================================================================*/
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/* Driver pre-compile time settings. */
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/*===========================================================================*/
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/**
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* @brief Number of PWM channels per PWM driver.
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*/
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#if !defined(PWM_CHANNELS) || defined(__DOXYGEN__)
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#define PWM_CHANNELS 1
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#endif
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/*===========================================================================*/
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/* Derived constants and error checks. */
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/*===========================================================================*/
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/*===========================================================================*/
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/* Driver data structures and types. */
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/*===========================================================================*/
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/**
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* @brief PWM channel type.
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*/
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typedef uint8_t pwmchannel_t;
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/**
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* @brief PWM counter type.
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*/
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typedef uint16_t pwmcnt_t;
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/**
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* @brief Driver configuration structure.
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* @note It could be empty on some architectures.
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*/
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typedef struct {
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} PWMConfig;
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/**
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* @brief Structure representing an PWM driver.
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*/
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typedef struct {
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/**
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* @brief Driver state.
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*/
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pwmstate_t pd_state;
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/**
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* @brief Current configuration data.
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*/
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const PWMConfig *pd_config;
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/* End of the mandatory fields.*/
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} PWMDriver;
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/*===========================================================================*/
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/* Driver macros. */
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/*===========================================================================*/
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/*===========================================================================*/
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/* External declarations. */
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/*===========================================================================*/
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#ifdef __cplusplus
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extern "C" {
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#endif
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void pwm_lld_init(void);
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void pwm_lld_start(PWMDriver *pwmp);
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void pwm_lld_stop(PWMDriver *pwmp);
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bool_t pwm_lld_is_enabled(PWMDriver *pwmp, pwmchannel_t channel);
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void pwm_lld_set_callback(PWMDriver *pwmp, pwmchannel_t channel,
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pwmedge_t edge, pwmcallback_t callback);
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void pwm_lld_enable_channel(PWMDriver *pwmp,
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pwmchannel_t channel,
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pwmcnt_t width);
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void pwm_lld_disable_channel(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_LLD_H_ */
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/** @} */
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