157 lines
5.8 KiB
C
157 lines
5.8 KiB
C
/*
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* Licensed under ST Liberty SW License Agreement V2, (the "License");
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* You may not use this file except in compliance with the License.
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* You may obtain a copy of the License at:
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*
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* http://www.st.com/software_license_agreement_liberty_v2
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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/**
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* @file SPC5xx/ESCI_v1/serial_lld.c
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* @brief SPC5xx low level serial driver code.
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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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/**
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* @name Serial port modes
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* @{
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*/
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#define SD_MODE_PARITY_MASK 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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/*===========================================================================*/
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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(SPC5_USE_ESCIA) || defined(__DOXYGEN__)
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#define SPC5_USE_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(SPC5_USE_ESCIB) || defined(__DOXYGEN__)
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#define SPC5_USE_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(SPC_ESCIA_PRIORITY) || defined(__DOXYGEN__)
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#define SPC5_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(SPC_ESCIB_PRIORITY) || defined(__DOXYGEN__)
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#define SPC5_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 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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/* 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 SPC5_USE_ESCIA && !defined(__DOXYGEN__)
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extern SerialDriver SD1;
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#endif
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#if SPC5_USE_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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