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/*
SPC5 HAL - Copyright (C) 2013 STMicroelectronics
Licensed 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.
*/
/**
* @file SPC5xx/ESCI_v1/hal_serial_lld.c
* @brief SPC5xx low level serial driver header.
*
* @addtogroup SERIAL
* @{
*/
#ifndef HAL_SERIAL_LLD_H
#define HAL_SERIAL_LLD_H
#if HAL_USE_SERIAL || defined(__DOXYGEN__)
/*===========================================================================*/
/* Driver constants. */
/*===========================================================================*/
/**
* @name Serial port modes
* @{
*/
#define SD_MODE_PARITY_MASK 0x03 /**< @brief Parity field mask. */
#define SD_MODE_PARITY_NONE 0x00 /**< @brief No parity. */
#define SD_MODE_PARITY_EVEN 0x01 /**< @brief Even parity. */
#define SD_MODE_PARITY_ODD 0x02 /**< @brief Odd parity. */
#define SD_MODE_NORMAL 0x00 /**< @brief Normal operations. */
#define SD_MODE_LOOPBACK 0x80 /**< @brief Internal loopback. */
/** @} */
/*===========================================================================*/
/* Driver pre-compile time settings. */
/*===========================================================================*/
/**
* @brief eSCI-A driver enable switch.
* @details If set to @p TRUE the support for eSCI-A is included.
* @note The default is @p TRUE.
*/
#if !defined(SPC5_USE_ESCIA) || defined(__DOXYGEN__)
#define SPC5_USE_ESCIA FALSE
#endif
/**
* @brief eSCI-B driver enable switch.
* @details If set to @p TRUE the support for eSCI-B is included.
* @note The default is @p TRUE.
*/
#if !defined(SPC5_USE_ESCIB) || defined(__DOXYGEN__)
#define SPC5_USE_ESCIB FALSE
#endif
/**
* @brief eSCI-C driver enable switch.
* @details If set to @p TRUE the support for eSCI-C is included.
* @note The default is @p TRUE.
*/
#if !defined(SPC5_USE_ESCIC) || defined(__DOXYGEN__)
#define SPC5_USE_ESCIC FALSE
#endif
/**
* @brief eSCI-A interrupt priority level setting.
*/
#if !defined(SPC5_ESCIA_PRIORITY) || defined(__DOXYGEN__)
#define SPC5_ESCIA_PRIORITY 8
#endif
/**
* @brief eSCI-B interrupt priority level setting.
*/
#if !defined(SPC5_ESCIB_PRIORITY) || defined(__DOXYGEN__)
#define SPC5_ESCIB_PRIORITY 8
#endif
/**
* @brief eSCI-C interrupt priority level setting.
*/
#if !defined(SPC5_ESCIC_PRIORITY) || defined(__DOXYGEN__)
#define SPC5_ESCIC_PRIORITY 8
#endif
/*===========================================================================*/
/* Derived constants and error checks. */
/*===========================================================================*/
#if SPC5_USE_ESCIA && !SPC5_HAS_ESCIA
#error "eSCI-A not present in the selected device"
#endif
#if SPC5_USE_ESCIB && !SPC5_HAS_ESCIB
#error "eSCI-B not present in the selected device"
#endif
#if SPC5_USE_ESCIC && !SPC5_HAS_ESCIC
#error "eSCI-C not present in the selected device"
#endif
#if !SPC5_USE_ESCIA && !SPC5_USE_ESCIB && !SPC5_USE_ESCIC
#error "SERIAL driver activated but no eSCI peripheral assigned"
#endif
/*===========================================================================*/
/* Driver data structures and types. */
/*===========================================================================*/
/**
* @brief Generic Serial Driver configuration structure.
* @details An instance of this structure must be passed to @p sdStart()
* in order to configure and start a serial driver operations.
* @note This structure content is architecture dependent, each driver
* implementation defines its own version and the custom static
* initializers.
*/
typedef struct {
/**
* @brief Bit rate.
*/
uint32_t sc_speed;
/**
* @brief Mode flags.
*/
uint8_t sc_mode;
} SerialConfig;
/**
* @brief @p SerialDriver specific data.
*/
#define _serial_driver_data \
_base_asynchronous_channel_data \
/* Driver state.*/ \
volatile sdstate_t state; \
/* Input queue.*/ \
input_queue_t iqueue; \
/* Output queue.*/ \
output_queue_t oqueue; \
/* Input circular buffer.*/ \
uint8_t ib[SERIAL_BUFFERS_SIZE]; \
/* Output circular buffer.*/ \
uint8_t ob[SERIAL_BUFFERS_SIZE]; \
/* End of the mandatory fields.*/ \
/* Pointer to the volatile eSCI registers block.*/ \
volatile struct ESCI_tag *escip;
/*===========================================================================*/
/* Driver macros. */
/*===========================================================================*/
/*===========================================================================*/
/* External declarations. */
/*===========================================================================*/
#if SPC5_USE_ESCIA && !defined(__DOXYGEN__)
extern SerialDriver SD1;
#endif
#if SPC5_USE_ESCIB && !defined(__DOXYGEN__)
extern SerialDriver SD2;
#endif
#if SPC5_USE_ESCIC && !defined(__DOXYGEN__)
extern SerialDriver SD3;
#endif
#ifdef __cplusplus
extern "C" {
#endif
void sd_lld_init(void);
void sd_lld_start(SerialDriver *sdp, const SerialConfig *config);
void sd_lld_stop(SerialDriver *sdp);
#ifdef __cplusplus
}
#endif
#endif /* HAL_USE_SERIAL */
#endif /* HAL_SERIAL_LLD_H */
/** @} */
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