mirror of https://github.com/rusefi/ChibiOS.git
192 lines
6.7 KiB
C
192 lines
6.7 KiB
C
/*
|
|
ChibiOS/RT - Copyright (C) 2006-2013 Giovanni Di Sirio
|
|
|
|
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 AT91SAM7/serial_lld.h
|
|
* @brief AT91SAM7 low level serial driver header.
|
|
*
|
|
* @addtogroup SERIAL
|
|
* @{
|
|
*/
|
|
|
|
#ifndef _SERIAL_LLD_H_
|
|
#define _SERIAL_LLD_H_
|
|
|
|
#if HAL_USE_SERIAL || defined(__DOXYGEN__)
|
|
|
|
/*===========================================================================*/
|
|
/* Driver constants. */
|
|
/*===========================================================================*/
|
|
|
|
/*===========================================================================*/
|
|
/* Driver pre-compile time settings. */
|
|
/*===========================================================================*/
|
|
|
|
/**
|
|
* @brief UART0 driver enable switch.
|
|
* @details If set to @p TRUE the support for USART1 is included.
|
|
* @note The default is @p TRUE.
|
|
*/
|
|
#if !defined(USE_SAM7_USART0) || defined(__DOXYGEN__)
|
|
#define USE_SAM7_USART0 TRUE
|
|
#endif
|
|
|
|
/**
|
|
* @brief UART1 driver enable switch.
|
|
* @details If set to @p TRUE the support for USART2 is included.
|
|
* @note The default is @p TRUE.
|
|
*/
|
|
#if !defined(USE_SAM7_USART1) || defined(__DOXYGEN__)
|
|
#define USE_SAM7_USART1 TRUE
|
|
#endif
|
|
|
|
#if (SAM7_PLATFORM == SAM7A3)
|
|
/**
|
|
* @brief UART2 driver enable switch.
|
|
* @details If set to @p TRUE the support for USART3 is included.
|
|
* @note The default is @p TRUE.
|
|
*/
|
|
#if !defined(USE_SAM7_USART2) || defined(__DOXYGEN__)
|
|
#define USE_SAM7_USART2 TRUE
|
|
#endif
|
|
#endif /* (SAM7_PLATFORM == SAM7A3) */
|
|
|
|
/**
|
|
* @brief DBGU UART driver enable switch.
|
|
* @details If set to @p TRUE the support for the DBGU UART is included.
|
|
* @note The default is @p TRUE.
|
|
*/
|
|
#if !defined(USE_SAM7_DBGU_UART) || defined(__DOXYGEN__)
|
|
#define USE_SAM7_DBGU_UART TRUE
|
|
#endif
|
|
|
|
/**
|
|
* @brief UART1 interrupt priority level setting.
|
|
*/
|
|
#if !defined(SAM7_USART0_PRIORITY) || defined(__DOXYGEN__)
|
|
#define SAM7_USART0_PRIORITY (AT91C_AIC_PRIOR_HIGHEST - 2)
|
|
#endif
|
|
|
|
/**
|
|
* @brief UART2 interrupt priority level setting.
|
|
*/
|
|
#if !defined(SAM7_USART1_PRIORITY) || defined(__DOXYGEN__)
|
|
#define SAM7_USART1_PRIORITY (AT91C_AIC_PRIOR_HIGHEST - 2)
|
|
#endif
|
|
|
|
#if (SAM7_PLATFORM == SAM7A3)
|
|
/**
|
|
* @brief UART2 interrupt priority level setting.
|
|
*/
|
|
#if !defined(SAM7_USART2_PRIORITY) || defined(__DOXYGEN__)
|
|
#define SAM7_USART2_PRIORITY (AT91C_AIC_PRIOR_HIGHEST - 2)
|
|
#endif
|
|
#endif /* (SAM7_PLATFORM == SAM7A3) */
|
|
|
|
/**
|
|
* @brief DBGU_UART interrupt priority level setting.
|
|
*/
|
|
#if !defined(SAM7_DBGU_UART_PRIORITY) || defined(__DOXYGEN__)
|
|
#define SAM7_DBGU_UART_PRIORITY (AT91C_AIC_PRIOR_HIGHEST - 2)
|
|
#endif
|
|
|
|
/*===========================================================================*/
|
|
/* Derived constants and error checks. */
|
|
/*===========================================================================*/
|
|
|
|
/*===========================================================================*/
|
|
/* Driver data structures and types. */
|
|
/*===========================================================================*/
|
|
|
|
/**
|
|
* @brief AT91SAM7 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.
|
|
*/
|
|
typedef struct {
|
|
/**
|
|
* @brief Bit rate.
|
|
* @details This is written to the US_BRGR register of the appropriate AT91S_USART
|
|
*/
|
|
uint32_t sc_speed;
|
|
/**
|
|
* @brief Initialization value for the MR register.
|
|
* @details This is written to the US_MR register of the appropriate AT91S_USART
|
|
*/
|
|
uint32_t sc_mr;
|
|
} 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 USART registers block.*/ \
|
|
AT91PS_USART usart;
|
|
|
|
/*===========================================================================*/
|
|
/* Driver macros. */
|
|
/*===========================================================================*/
|
|
|
|
/*===========================================================================*/
|
|
/* External declarations. */
|
|
/*===========================================================================*/
|
|
|
|
#if USE_SAM7_USART0 && !defined(__DOXYGEN__)
|
|
extern SerialDriver SD1;
|
|
#endif
|
|
#if USE_SAM7_USART1 && !defined(__DOXYGEN__)
|
|
extern SerialDriver SD2;
|
|
#endif
|
|
#if (SAM7_PLATFORM == SAM7A3)
|
|
#if USE_SAM7_USART2 && !defined(__DOXYGEN__)
|
|
extern SerialDriver SD3;
|
|
#endif
|
|
#endif
|
|
#if USE_SAM7_DBGU_UART
|
|
extern SerialDriver SDDBG;
|
|
#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);
|
|
#if USE_SAM7_DBGU_UART
|
|
void sd_lld_serve_interrupt(SerialDriver *sdp);
|
|
#endif
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif
|
|
|
|
#endif /* HAL_USE_SERIAL */
|
|
|
|
#endif /* _SERIAL_LLD_H_ */
|
|
|
|
/** @} */
|