166 lines
6.3 KiB
C
166 lines
6.3 KiB
C
/*
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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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/**
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* @file SPC56x/serial_lld.h
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* @brief SPC563 low level serial driver header.
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*
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* @addtogroup SERIAL
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* @{
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*/
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#ifndef _SERIAL_LLD_H_
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#define _SERIAL_LLD_H_
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#if HAL_USE_SERIAL || defined(__DOXYGEN__)
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/*===========================================================================*/
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/* Driver constants. */
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/*===========================================================================*/
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#define SD_MODE_PARITY 0x03 /**< @brief Parity field mask. */
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#define SD_MODE_PARITY_NONE 0x00 /**< @brief No parity. */
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#define SD_MODE_PARITY_EVEN 0x01 /**< @brief Even parity. */
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#define SD_MODE_PARITY_ODD 0x02 /**< @brief Odd parity. */
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#define SD_MODE_NORMAL 0x00 /**< @brief Normal operations. */
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#define SD_MODE_LOOPBACK 0x80 /**< @brief Internal loopback. */
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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 eSCI-A driver enable switch.
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* @details If set to @p TRUE the support for eSCI-A is included.
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* @note The default is @p TRUE.
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*/
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#if !defined(USE_SPC563_ESCIA) || defined(__DOXYGEN__)
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#define USE_SPC563_ESCIA TRUE
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#endif
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/**
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* @brief eSCI-B driver enable switch.
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* @details If set to @p TRUE the support for eSCI-B is included.
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* @note The default is @p TRUE.
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*/
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#if !defined(USE_SPC563_ESCIB) || defined(__DOXYGEN__)
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#define USE_SPC563_ESCIB TRUE
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#endif
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/**
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* @brief eSCI-A interrupt priority level setting.
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*/
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#if !defined(SPC563_ESCIA_PRIORITY) || defined(__DOXYGEN__)
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#define SPC563_ESCIA_PRIORITY 8
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#endif
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/**
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* @brief eSCI-B interrupt priority level setting.
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*/
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#if !defined(SPC563_ESCIB_PRIORITY) || defined(__DOXYGEN__)
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#define SPC563_ESCIB_PRIORITY 8
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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 Serial Driver condition flags type.
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*/
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typedef uint8_t sdflags_t;
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/**
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* @brief Generic Serial Driver configuration structure.
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* @details An instance of this structure must be passed to @p sdStart()
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* in order to configure and start a serial driver operations.
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* @note This structure content is architecture dependent, each driver
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* implementation defines its own version and the custom static
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* initializers.
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*/
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typedef struct {
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/**
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* @brief Bit rate.
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*/
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uint32_t sc_speed;
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/**
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* @brief Mode flags.
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*/
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uint8_t sc_mode;
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} SerialConfig;
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/**
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* @brief @p SerialDriver specific data.
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*/
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#define _serial_driver_data \
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_base_asynchronous_channel_data \
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/* Driver state.*/ \
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sdstate_t state; \
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/* Input queue.*/ \
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InputQueue iqueue; \
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/* Output queue.*/ \
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OutputQueue oqueue; \
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/* Status Change @p EventSource.*/ \
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EventSource sevent; \
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/* I/O driver status flags.*/ \
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sdflags_t flags; \
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/* Input circular buffer.*/ \
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uint8_t ib[SERIAL_BUFFERS_SIZE]; \
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/* Output circular buffer.*/ \
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uint8_t ob[SERIAL_BUFFERS_SIZE]; \
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/* End of the mandatory fields.*/ \
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/* Pointer to the volatile eSCI registers block.*/ \
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volatile struct ESCI_tag *escip;
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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 USE_SPC563_ESCIA && !defined(__DOXYGEN__)
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extern SerialDriver SD1;
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#endif
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#if USE_SPC563_ESCIB && !defined(__DOXYGEN__)
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extern SerialDriver SD2;
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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 sd_lld_init(void);
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void sd_lld_start(SerialDriver *sdp, const SerialConfig *config);
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void sd_lld_stop(SerialDriver *sdp);
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#ifdef __cplusplus
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}
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#endif
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#endif /* HAL_USE_SERIAL */
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#endif /* _SERIAL_LLD_H_ */
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/** @} */
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