171 lines
6.2 KiB
C
171 lines
6.2 KiB
C
/*
|
|
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/serial_lld.c
|
|
* @brief SPC5xx low level serial driver header.
|
|
*
|
|
* @addtogroup SERIAL
|
|
* @{
|
|
*/
|
|
|
|
#ifndef _SERIAL_LLD_H_
|
|
#define _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 TRUE
|
|
#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 TRUE
|
|
#endif
|
|
|
|
/**
|
|
* @brief eSCI-A interrupt priority level setting.
|
|
*/
|
|
#if !defined(SPC_ESCIA_PRIORITY) || defined(__DOXYGEN__)
|
|
#define SPC5_ESCIA_PRIORITY 8
|
|
#endif
|
|
|
|
/**
|
|
* @brief eSCI-B interrupt priority level setting.
|
|
*/
|
|
#if !defined(SPC_ESCIB_PRIORITY) || defined(__DOXYGEN__)
|
|
#define SPC5_ESCIB_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_ESCIA && !SPC5_USE_ESCIB
|
|
#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.*/ \
|
|
sdstate_t state; \
|
|
/* Input queue.*/ \
|
|
InputQueue iqueue; \
|
|
/* Output queue.*/ \
|
|
OutputQueue 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
|
|
|
|
#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 /* _SERIAL_LLD_H_ */
|
|
|
|
/** @} */
|