170 lines
6.1 KiB
C
170 lines
6.1 KiB
C
/*
|
|
ChibiOS/RT - Copyright (C) 2006,2007,2008,2009,2010 Giovanni Di Sirio.
|
|
|
|
This file is part of ChibiOS/RT.
|
|
|
|
ChibiOS/RT is free software; you can redistribute it and/or modify
|
|
it under the terms of the GNU General Public License as published by
|
|
the Free Software Foundation; either version 3 of the License, or
|
|
(at your option) any later version.
|
|
|
|
ChibiOS/RT is distributed in the hope that it will be useful,
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
GNU General Public License for more details.
|
|
|
|
You should have received a copy of the GNU General Public License
|
|
along with this program. If not, see <http://www.gnu.org/licenses/>.
|
|
*/
|
|
|
|
/**
|
|
* @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
|
|
|
|
/**
|
|
* @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
|
|
|
|
/**
|
|
* @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 USE_SAM7_DBGU_UART
|
|
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);
|
|
#if USE_SAM7_DBGU_UART
|
|
void sd_lld_serve_interrupt(SerialDriver *sdp);
|
|
#endif
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif
|
|
|
|
#endif /* HAL_USE_SERIAL */
|
|
|
|
#endif /* _SERIAL_LLD_H_ */
|
|
|
|
/** @} */
|