at91_serial.h

来自「eCos操作系统源码」· C头文件 代码 · 共 110 行

#ifndef CYGONCE_ARM_AT91_SERIAL_H
#define CYGONCE_ARM_AT91_SERIAL_H

// ====================================================================
//
//      at91_serial.h
//
//      Device I/O - Description of Atmel AT91/EB40 serial hardware
//
// ====================================================================
//####ECOSGPLCOPYRIGHTBEGIN####
// -------------------------------------------
// This file is part of eCos, the Embedded Configurable Operating System.
// Copyright (C) 1998, 1999, 2000, 2001, 2002 Red Hat, Inc.
//
// eCos 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 2 or (at your option) any later version.
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// 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
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// 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
//
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// or inline functions from this file, or you compile this file and link it
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//####ECOSGPLCOPYRIGHTEND####
// ====================================================================
//#####DESCRIPTIONBEGIN####
//
// Author(s):    gthomas
// Contributors: gthomas
// Date:         2001-07-24
// Purpose:      Internal interfaces for serial I/O drivers
// Description:
//
//####DESCRIPTIONEND####
//
// ====================================================================

// Description of serial ports on Atmel AT91/EB40

#include <cyg/hal/plf_io.h>  // Register definitions

#define AT91_UART_RX_INTS (AT91_US_IER_RxRDY)

static cyg_uint32 select_word_length[] = {
    AT91_US_MR_LENGTH_5,
    AT91_US_MR_LENGTH_6,
    AT91_US_MR_LENGTH_7,
    AT91_US_MR_LENGTH_8
};

static cyg_uint32 select_stop_bits[] = {
    0,
    AT91_US_MR_STOP_1,      // 1 stop bit
    AT91_US_MR_STOP_1_5,    // 1.5 stop bit
    AT91_US_MR_STOP_2       // 2 stop bits
};

static cyg_uint32 select_parity[] = {
    AT91_US_MR_PARITY_NONE,  // No parity
    AT91_US_MR_PARITY_EVEN,  // Even parity
    AT91_US_MR_PARITY_ODD,   // Odd parity
    AT91_US_MR_PARITY_MARK,  // Mark (1) parity
    AT91_US_MR_PARITY_SPACE  // Space (0) parity
};

static cyg_int32 select_baud[] = {
    0,      // Unused
    50,     // 50
    75,     // 75
    110,    // 110
    0,      // 134.5
    150,    // 150
    200,    // 200
    300,    // 300
    600,    // 600
    1200,   // 1200
    1800,   // 1800
    2400,   // 2400
    3600,   // 3600
    4800,   // 4800
    7200,   // 7200
    9600,   // 9600
    14400,  // 14400
    19200,  // 19200
    38400,  // 38400
    57600,  // 57600
    115200, // 115200
    230400, // 230400
};

#endif // CYGONCE_ARM_AT91_SERIAL_H