157 lines
4.5 KiB
C
157 lines
4.5 KiB
C
/*
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ChibiOS/RT - Copyright (C) 2006,2007,2008,2009,2010,
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2011,2012,2013 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 LPC11Uxx/ext_lld.h
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* @brief LPC11Uxx EXT subsystem low level driver header.
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*
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* @addtogroup EXT
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* @{
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*/
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#ifndef _EXT_LLD_H_
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#define _EXT_LLD_H_
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#if HAL_USE_EXT || defined(__DOXYGEN__)
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/*===========================================================================*/
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/* Driver constants. */
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/*===========================================================================*/
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/**
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* @brief Available number of EXT channels.
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*/
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#define EXT_MAX_CHANNELS 8
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/**
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* @brief Mask of the available channels.
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*/
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#define EXT_CHANNELS_MASK ((1 << EXT_MAX_CHANNELS) - 1)
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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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/* 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 EXT channel identifier.
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*/
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typedef uint32_t expchannel_t;
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/**
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* @brief EXT channel callback reason.
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*/
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typedef uint32_t expreason_t;
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/**
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* @brief Type of an EXT generic notification callback.
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*
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* @param[in] extp pointer to the @p EXPDriver object triggering the
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* callback
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*/
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typedef void (*extcallback_t)(EXTDriver *extp,
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expchannel_t channel,
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expreason_t reason);
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/**
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* @brief Channel configuration structure.
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*/
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typedef struct {
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/**
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* @brief Channel mode.
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*/
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uint8_t mode;
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/**
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* @brief IO Pin.
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*/
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uint8_t iopin;
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/**
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* @brief Channel callback.
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*/
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extcallback_t cb;
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} EXTChannelConfig;
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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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/**
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* @brief Channel configurations.
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*/
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EXTChannelConfig channels[EXT_MAX_CHANNELS];
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/* End of the mandatory fields.*/
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} EXTConfig;
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/**
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* @brief Structure representing an EXT driver.
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*/
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struct EXTDriver {
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/**
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* @brief Driver state.
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*/
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extstate_t state;
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/**
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* @brief Current configuration data.
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*/
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const EXTConfig *config;
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/* End of the mandatory fields.*/
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};
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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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#if !defined(__DOXYGEN__)
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extern EXTDriver EXTD1;
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#endif
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#ifdef __cplusplus
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extern "C" {
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#endif
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void ext_lld_init(void);
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void ext_lld_start(EXTDriver *extp);
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void ext_lld_stop(EXTDriver *extp);
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void ext_lld_channel_enable(EXTDriver *extp, expchannel_t channel);
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void ext_lld_channel_disable(EXTDriver *extp, expchannel_t channel);
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#ifdef __cplusplus
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}
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#endif
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#endif /* HAL_USE_EXT */
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#endif /* _EXT_LLD_H_ */
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/** @} */
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