113 lines
3.7 KiB
C
113 lines
3.7 KiB
C
/*
|
|
Copyright 2007, Freie Universitaet Berlin. All rights reserved.
|
|
|
|
These sources were developed at the Freie Universität Berlin, Computer
|
|
Systems and Telematics group.
|
|
|
|
Redistribution and use in source and binary forms, with or without
|
|
modification, are permitted provided that the following conditions are
|
|
met:
|
|
|
|
- Redistributions of source code must retain the above copyright
|
|
notice, this list of conditions and the following disclaimer.
|
|
|
|
- Redistributions in binary form must reproduce the above copyright
|
|
notice, this list of conditions and the following disclaimer in the
|
|
documentation and/or other materials provided with the distribution.
|
|
|
|
- Neither the name of Freie Universitaet Berlin (FUB) nor the names of its
|
|
contributors may be used to endorse or promote products derived from
|
|
this software without specific prior written permission.
|
|
|
|
This software is provided by FUB and the contributors on an "as is"
|
|
basis, without any representations or warranties of any kind, express
|
|
or implied including, but not limited to, representations or
|
|
warranties of non-infringement, merchantability or fitness for a
|
|
particular purpose. In no event shall FUB or contributors be liable
|
|
for any direct, indirect, incidental, special, exemplary, or
|
|
consequential damages (including, but not limited to, procurement of
|
|
substitute goods or services; loss of use, data, or profits; or
|
|
business interruption) however caused and on any theory of liability,
|
|
whether in contract, strict liability, or tort (including negligence
|
|
or otherwise) arising in any way out of the use of this software, even
|
|
if advised of the possibility of such damage.
|
|
|
|
This implementation was developed by the CST group at the FUB.
|
|
|
|
For documentation and questions please use the web site
|
|
http://scatterweb.mi.fu-berlin.de and the mailinglist
|
|
scatterweb@lists.spline.inf.fu-berlin.de (subscription via the Website).
|
|
Berlin, 2007
|
|
*/
|
|
|
|
/**
|
|
* @addtogroup interfaces
|
|
* @{ */
|
|
|
|
/**
|
|
* @defgroup uart1 UART1
|
|
* The UART module multiplexes differenct protocol on the MSB's UART1
|
|
* interface. Currently RS232 and SPI are supported.
|
|
* @{
|
|
*/
|
|
|
|
/**
|
|
* @file ScatterWeb.Uart.h
|
|
* @author Michael Baar <baar@inf.fu-berlin.de>
|
|
*
|
|
* Header file for MSP430 UART driver.
|
|
*/
|
|
|
|
#ifndef MSB430_UART_H
|
|
#define MSB430_UART_H
|
|
|
|
#define UART_RX RXBUF1
|
|
#define UART_TX TXBUF1
|
|
#define UART_RESET_RX() do { U1IFG &= ~URXIFG1; } while(0)
|
|
#define UART_RESET_RXTX() do { U1IFG &= ~(URXIFG1 | UTXIFG1); } while(0)
|
|
#define UART_WAIT_RX() while( (U1IFG & URXIFG1) == 0 ) { _NOP(); }
|
|
#define UART_WAIT_TX() while( (U1IFG & UTXIFG1) == 0 ) { _NOP(); }
|
|
#define UART_WAIT_TXDONE() while( (UTCTL1 & TXEPT) == 0 ) { _NOP(); }
|
|
|
|
/**
|
|
* @brief Operating state
|
|
*/
|
|
extern volatile unsigned char uart_mode;
|
|
extern volatile unsigned char uart_lockcnt;
|
|
|
|
/**
|
|
* @name UART mode flags
|
|
* @{
|
|
*/
|
|
#define UART_MODE_RS232 (0x00u) ///< RS232 mode
|
|
#define UART_MODE_SPI (0x01u) ///< SPI mode
|
|
#define UART_MODE_DEFAULT UART_MODE_RS232
|
|
#define UART_NUM_MODES (UART_MODE_SPI + 1) ///< Highest mode number
|
|
#define UART_MODE_RESET (0xFFu) ///< reset with current settings
|
|
/** @} */
|
|
|
|
#define UART_WAIT_LOCK(x) ( (uart_mode != x ) && (uart_lockcnt) )
|
|
#define UART_MODE_IS(x) ( uart_mode == x )
|
|
|
|
typedef unsigned int(*fp_uart_handler)(unsigned char);
|
|
|
|
/**
|
|
* \brief Initialize the UART module
|
|
*
|
|
* This function is called from the boot up code to
|
|
* initalize the UART module.
|
|
*/
|
|
void uart_init(void);
|
|
|
|
void uart_set_speed(unsigned mode, unsigned ubr0, unsigned ubr1, unsigned umctl);
|
|
void uart_set_handler(unsigned mode, fp_uart_handler fpHandler);
|
|
int uart_lock(unsigned mode);
|
|
int uart_unlock(unsigned mode);
|
|
void uart_set_mode(unsigned);
|
|
int uart_get_mode(void);
|
|
|
|
#endif /* !UART_H */
|
|
|
|
/** @} */
|
|
/** @} */
|