mirror of
https://github.com/portapack-mayhem/mayhem-firmware.git
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192 lines
6.7 KiB
C
192 lines
6.7 KiB
C
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/*
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ChibiOS/RT - Copyright (C) 2006-2013 Giovanni Di Sirio
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Licensed under the Apache License, Version 2.0 (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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http://www.apache.org/licenses/LICENSE-2.0
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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 AT91SAM7/serial_lld.h
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* @brief AT91SAM7 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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/*===========================================================================*/
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/* Driver pre-compile time settings. */
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/*===========================================================================*/
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/**
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* @brief UART0 driver enable switch.
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* @details If set to @p TRUE the support for USART1 is included.
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* @note The default is @p TRUE.
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*/
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#if !defined(USE_SAM7_USART0) || defined(__DOXYGEN__)
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#define USE_SAM7_USART0 TRUE
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#endif
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/**
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* @brief UART1 driver enable switch.
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* @details If set to @p TRUE the support for USART2 is included.
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* @note The default is @p TRUE.
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*/
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#if !defined(USE_SAM7_USART1) || defined(__DOXYGEN__)
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#define USE_SAM7_USART1 TRUE
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#endif
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#if (SAM7_PLATFORM == SAM7A3)
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/**
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* @brief UART2 driver enable switch.
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* @details If set to @p TRUE the support for USART3 is included.
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* @note The default is @p TRUE.
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*/
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#if !defined(USE_SAM7_USART2) || defined(__DOXYGEN__)
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#define USE_SAM7_USART2 TRUE
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#endif
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#endif /* (SAM7_PLATFORM == SAM7A3) */
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/**
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* @brief DBGU UART driver enable switch.
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* @details If set to @p TRUE the support for the DBGU UART is included.
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* @note The default is @p TRUE.
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*/
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#if !defined(USE_SAM7_DBGU_UART) || defined(__DOXYGEN__)
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#define USE_SAM7_DBGU_UART TRUE
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#endif
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/**
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* @brief UART1 interrupt priority level setting.
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*/
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#if !defined(SAM7_USART0_PRIORITY) || defined(__DOXYGEN__)
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#define SAM7_USART0_PRIORITY (AT91C_AIC_PRIOR_HIGHEST - 2)
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#endif
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/**
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* @brief UART2 interrupt priority level setting.
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*/
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#if !defined(SAM7_USART1_PRIORITY) || defined(__DOXYGEN__)
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#define SAM7_USART1_PRIORITY (AT91C_AIC_PRIOR_HIGHEST - 2)
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#endif
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#if (SAM7_PLATFORM == SAM7A3)
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/**
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* @brief UART2 interrupt priority level setting.
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*/
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#if !defined(SAM7_USART2_PRIORITY) || defined(__DOXYGEN__)
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#define SAM7_USART2_PRIORITY (AT91C_AIC_PRIOR_HIGHEST - 2)
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#endif
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#endif /* (SAM7_PLATFORM == SAM7A3) */
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/**
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* @brief DBGU_UART interrupt priority level setting.
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*/
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#if !defined(SAM7_DBGU_UART_PRIORITY) || defined(__DOXYGEN__)
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#define SAM7_DBGU_UART_PRIORITY (AT91C_AIC_PRIOR_HIGHEST - 2)
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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 AT91SAM7 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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*/
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typedef struct {
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/**
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* @brief Bit rate.
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* @details This is written to the US_BRGR register of the appropriate AT91S_USART
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*/
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uint32_t sc_speed;
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/**
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* @brief Initialization value for the MR register.
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* @details This is written to the US_MR register of the appropriate AT91S_USART
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*/
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uint32_t sc_mr;
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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 USART registers block.*/ \
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AT91PS_USART usart;
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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_SAM7_USART0 && !defined(__DOXYGEN__)
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extern SerialDriver SD1;
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#endif
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#if USE_SAM7_USART1 && !defined(__DOXYGEN__)
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extern SerialDriver SD2;
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#endif
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#if (SAM7_PLATFORM == SAM7A3)
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#if USE_SAM7_USART2 && !defined(__DOXYGEN__)
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extern SerialDriver SD3;
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#endif
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#endif
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#if USE_SAM7_DBGU_UART
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extern SerialDriver SDDBG;
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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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#if USE_SAM7_DBGU_UART
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void sd_lld_serve_interrupt(SerialDriver *sdp);
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#endif
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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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