171 lines
5.2 KiB
C
171 lines
5.2 KiB
C
/*
|
|
ChibiOS/RT - Copyright (C) 2006-2007 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 MSP430/serial_lld.h
|
|
* @brief MSP430 low level serial driver header.
|
|
* @addtogroup MSP430_SERIAL
|
|
* @{
|
|
*/
|
|
|
|
#ifndef _SERIAL_LLD_H_
|
|
#define _SERIAL_LLD_H_
|
|
|
|
#if CH_HAL_USE_SERIAL || defined(__DOXYGEN__)
|
|
|
|
/*===========================================================================*/
|
|
/* Driver constants. */
|
|
/*===========================================================================*/
|
|
|
|
/*===========================================================================*/
|
|
/* Driver pre-compile time settings. */
|
|
/*===========================================================================*/
|
|
|
|
/**
|
|
* @brief USART0 driver enable switch.
|
|
* @details If set to @p TRUE the support for USART0 is included.
|
|
* @note The default is @p TRUE.
|
|
*/
|
|
#if !defined(USE_MSP430_USART0) || defined(__DOXYGEN__)
|
|
#define USE_MSP430_USART0 TRUE
|
|
#endif
|
|
|
|
/**
|
|
* @brief USART1 driver enable switch.
|
|
* @details If set to @p TRUE the support for USART1 is included.
|
|
* @note The default is @p FALSE.
|
|
*/
|
|
#if !defined(USE_MSP430_USART1) || defined(__DOXYGEN__)
|
|
#define USE_MSP430_USART1 TRUE
|
|
#endif
|
|
|
|
/*===========================================================================*/
|
|
/* Derived constants and error checks. */
|
|
/*===========================================================================*/
|
|
|
|
/*===========================================================================*/
|
|
/* Driver data structures and types. */
|
|
/*===========================================================================*/
|
|
|
|
/**
|
|
* Serial Driver condition flags type.
|
|
*/
|
|
typedef uint8_t sdflags_t;
|
|
|
|
/**
|
|
* @brief MSP430 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 Initialization value for the UBRx registers.
|
|
*/
|
|
uint16_t sc_div;
|
|
/**
|
|
* @brief Initialization value for the MOD register.
|
|
*/
|
|
uint8_t sc_mod;
|
|
/**
|
|
* @brief Initialization value for the CTL register.
|
|
*/
|
|
uint8_t sc_ctl;
|
|
} SerialConfig;
|
|
|
|
/**
|
|
* @brief @p SerialDriver specific data.
|
|
*/
|
|
struct _serial_driver_data {
|
|
/**
|
|
* @brief Driver state.
|
|
*/
|
|
sdstate_t state;
|
|
/**
|
|
* @brief Current configuration data.
|
|
*/
|
|
const SerialConfig *config;
|
|
/**
|
|
* @brief Input queue, incoming data can be read from this input queue by
|
|
* using the queues APIs.
|
|
*/
|
|
InputQueue iqueue;
|
|
/**
|
|
* @brief Output queue, outgoing data can be written to this output queue by
|
|
* using the queues APIs.
|
|
*/
|
|
OutputQueue oqueue;
|
|
/**
|
|
* @brief Status Change @p EventSource. This event is generated when one or
|
|
* more condition flags change.
|
|
*/
|
|
EventSource sevent;
|
|
/**
|
|
* @brief I/O driver status flags.
|
|
*/
|
|
sdflags_t flags;
|
|
/**
|
|
* @brief Input circular buffer.
|
|
*/
|
|
uint8_t ib[SERIAL_BUFFERS_SIZE];
|
|
/**
|
|
* @brief Output circular buffer.
|
|
*/
|
|
uint8_t ob[SERIAL_BUFFERS_SIZE];
|
|
/* End of the mandatory fields.*/
|
|
};
|
|
|
|
/*===========================================================================*/
|
|
/* Driver macros. */
|
|
/*===========================================================================*/
|
|
|
|
/**
|
|
* @brief Macro for baud rate computation.
|
|
* @note Make sure the final baud rate is within tolerance.
|
|
*/
|
|
#define UBR(b) (SMCLK / (b))
|
|
|
|
/*===========================================================================*/
|
|
/* External declarations. */
|
|
/*===========================================================================*/
|
|
|
|
/** @cond never*/
|
|
#if USE_MSP430_USART0
|
|
extern SerialDriver SD1;
|
|
#endif
|
|
#if USE_MSP430_USART1
|
|
extern SerialDriver SD2;
|
|
#endif
|
|
|
|
#ifdef __cplusplus
|
|
extern "C" {
|
|
#endif
|
|
void sd_lld_init(void);
|
|
void sd_lld_start(SerialDriver *sdp);
|
|
void sd_lld_stop(SerialDriver *sdp);
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif
|
|
/** @endcond*/
|
|
|
|
#endif /* CH_HAL_USE_SERIAL */
|
|
|
|
#endif /* _SERIAL_LLD_H_ */
|
|
|
|
/** @} */
|