arm_arm7_pid_ser.inl

Intel XScale PXA255 引导Linux的Redboot 版bootloader源代码！

//==========================================================================
//
//      io/serial/arm/arm_arm7_pid_ser.inl
//
//      ARM PID Serial I/O definitions
//
//==========================================================================
//####COPYRIGHTBEGIN####
//                                                                          
// -------------------------------------------                              
// The contents of this file are subject to the Red Hat eCos Public License 
// Version 1.1 (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.redhat.com/                                                   
//                                                                          
// Software distributed under the License is distributed on an "AS IS"      
// basis, WITHOUT WARRANTY OF ANY KIND, either express or implied.  See the 
// License for the specific language governing rights and limitations under 
// the License.                                                             
//                                                                          
// The Original Code is eCos - Embedded Configurable Operating System,      
// released September 30, 1998.                                             
//                                                                          
// The Initial Developer of the Original Code is Red Hat.                   
// Portions created by Red Hat are                                          
// Copyright (C) 1998, 1999, 2000 Red Hat, Inc.                             
// All Rights Reserved.                                                     
// -------------------------------------------                              
//                                                                          
//####COPYRIGHTEND####
//==========================================================================
//#####DESCRIPTIONBEGIN####
//
// Author(s):    gthomas
// Contributors: gthomas, jlarmour
// Date:         1999-02-04
// Purpose:      PID Serial I/O module (interrupt driven version)
// Description: 
//
//####DESCRIPTIONEND####
//
//==========================================================================

#include <cyg/hal/hal_intr.h>

//-----------------------------------------------------------------------------
// Baud rate specification

static unsigned short select_baud[] = {
    0,    // Unused
    0,    // 50
    0,    // 75
    1047, // 110
    0,    // 134.5
    768,  // 150
    0,    // 200
    384,  // 300
    192,  // 600
    96,   // 1200
    24,   // 1800
    48,   // 2400
    0,    // 3600
    24,   // 4800
    16,   // 7200
    12,   // 9600
    8,    // 14400
    6,    // 19200
    3,    // 38400
    2,    // 57600
    1,    // 115200
    0,    // 230400
};

#ifdef CYGPKG_IO_SERIAL_ARM_PID_SERIAL0
static pc_serial_info pid_serial_info0 = {0x0D800000,
                                          CYGNUM_HAL_INTERRUPT_SERIALA};
#if CYGNUM_IO_SERIAL_ARM_PID_SERIAL0_BUFSIZE > 0
static unsigned char pid_serial_out_buf0[CYGNUM_IO_SERIAL_ARM_PID_SERIAL0_BUFSIZE];
static unsigned char pid_serial_in_buf0[CYGNUM_IO_SERIAL_ARM_PID_SERIAL0_BUFSIZE];

static SERIAL_CHANNEL_USING_INTERRUPTS(pid_serial_channel0,
                                       pc_serial_funs, 
                                       pid_serial_info0,
                                       CYG_SERIAL_BAUD_RATE(CYGNUM_IO_SERIAL_ARM_PID_SERIAL0_BAUD),
                                       CYG_SERIAL_STOP_DEFAULT,
                                       CYG_SERIAL_PARITY_DEFAULT,
                                       CYG_SERIAL_WORD_LENGTH_DEFAULT,
                                       CYG_SERIAL_FLAGS_DEFAULT,
                                       &pid_serial_out_buf0[0], sizeof(pid_serial_out_buf0),
                                       &pid_serial_in_buf0[0], sizeof(pid_serial_in_buf0)
    );
#else
static SERIAL_CHANNEL(pid_serial_channel0,
                      pc_serial_funs, 
                      pid_serial_info0,
                      CYG_SERIAL_BAUD_RATE(CYGNUM_IO_SERIAL_ARM_PID_SERIAL0_BAUD),
                      CYG_SERIAL_STOP_DEFAULT,
                      CYG_SERIAL_PARITY_DEFAULT,
                      CYG_SERIAL_WORD_LENGTH_DEFAULT,
                      CYG_SERIAL_FLAGS_DEFAULT
    );
#endif

DEVTAB_ENTRY(pid_serial_io0, 
             CYGDAT_IO_SERIAL_ARM_PID_SERIAL0_NAME,
             0,                     // Does not depend on a lower level interface
             &cyg_io_serial_devio, 
             pc_serial_init, 
             pc_serial_lookup,     // Serial driver may need initializing
             &pid_serial_channel0
    );
#endif //  CYGPKG_IO_SERIAL_ARM_PID_SERIAL0

#ifdef CYGPKG_IO_SERIAL_ARM_PID_SERIAL1
static pc_serial_info pid_serial_info1 = {0x0D800020,
                                          CYGNUM_HAL_INTERRUPT_SERIALB};
#if CYGNUM_IO_SERIAL_ARM_PID_SERIAL1_BUFSIZE > 0
static unsigned char pid_serial_out_buf1[CYGNUM_IO_SERIAL_ARM_PID_SERIAL1_BUFSIZE];
static unsigned char pid_serial_in_buf1[CYGNUM_IO_SERIAL_ARM_PID_SERIAL1_BUFSIZE];

static SERIAL_CHANNEL_USING_INTERRUPTS(pid_serial_channel1,
                                       pc_serial_funs, 
                                       pid_serial_info1,
                                       CYG_SERIAL_BAUD_RATE(CYGNUM_IO_SERIAL_ARM_PID_SERIAL1_BAUD),
                                       CYG_SERIAL_STOP_DEFAULT,
                                       CYG_SERIAL_PARITY_DEFAULT,
                                       CYG_SERIAL_WORD_LENGTH_DEFAULT,
                                       CYG_SERIAL_FLAGS_DEFAULT,
                                       &pid_serial_out_buf1[0], sizeof(pid_serial_out_buf1),
                                       &pid_serial_in_buf1[0], sizeof(pid_serial_in_buf1)
    );
#else
static SERIAL_CHANNEL(pid_serial_channel1,
                      pc_serial_funs, 
                      pid_serial_info1,
                      CYG_SERIAL_BAUD_RATE(CYGNUM_IO_SERIAL_ARM_PID_SERIAL1_BAUD),
                      CYG_SERIAL_STOP_DEFAULT,
                      CYG_SERIAL_PARITY_DEFAULT,
                      CYG_SERIAL_WORD_LENGTH_DEFAULT,
                      CYG_SERIAL_FLAGS_DEFAULT
    );
#endif

DEVTAB_ENTRY(pid_serial_io1, 
             CYGDAT_IO_SERIAL_ARM_PID_SERIAL1_NAME,
             0,                     // Does not depend on a lower level interface
             &cyg_io_serial_devio, 
             pc_serial_init, 
             pc_serial_lookup,     // Serial driver may need initializing
             &pid_serial_channel1
    );
#endif //  CYGPKG_IO_SERIAL_ARM_PID_SERIAL1

// EOF arm_arm7_pid_ser.inl