packages/devs/serial/i386/pc/v2_0/include/i386_pc_ser.inl

   1 //==========================================================================
   2 //
   3 //      io/serial/i386/pc/i386_pc_ser.inl
   4 //
   5 //      i386 PC Serial I/O Interface Module (interrupt driven)
   6 //      for use with 8250s or 16550s.
   7 //
   8 //==========================================================================
   9 //####ECOSGPLCOPYRIGHTBEGIN####
  10 // -------------------------------------------
  11 // This file is part of eCos, the Embedded Configurable Operating System.
  12 // Copyright (C) 1998, 1999, 2000, 2001, 2002 Red Hat, Inc.
  13 //
  14 // eCos is free software; you can redistribute it and/or modify it under
  15 // the terms of the GNU General Public License as published by the Free
  16 // Software Foundation; either version 2 or (at your option) any later version.
  17 //
  18 // eCos is distributed in the hope that it will be useful, but WITHOUT ANY
  19 // WARRANTY; without even the implied warranty of MERCHANTABILITY or
  20 // FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  21 // for more details.
  22 //
  23 // You should have received a copy of the GNU General Public License along
  24 // with eCos; if not, write to the Free Software Foundation, Inc.,
  25 // 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
  26 //
  27 // As a special exception, if other files instantiate templates or use macros
  28 // or inline functions from this file, or you compile this file and link it
  29 // with other works to produce a work based on this file, this file does not
  30 // by itself cause the resulting work to be covered by the GNU General Public
  31 // License. However the source code for this file must still be made available
  32 // in accordance with section (3) of the GNU General Public License.
  33 //
  34 // This exception does not invalidate any other reasons why a work based on
  35 // this file might be covered by the GNU General Public License.
  36 //
  37 // Alternative licenses for eCos may be arranged by contacting Red Hat, Inc.
  38 // at http://sources.redhat.com/ecos/ecos-license/
  39 // -------------------------------------------
  40 //####ECOSGPLCOPYRIGHTEND####
  41 //==========================================================================
  42 //#####DESCRIPTIONBEGIN####
  43 //
  44 // Author(s):    jlarmour
  45 // Contributors:
  46 // Date:         2001-06-08
  47 // Purpose:      PC Serial I/O module (interrupt driven version)
  48 // Description:
  49 //
  50 //####DESCRIPTIONEND####
  51 //
  52 //==========================================================================
  53
  54 #include <cyg/hal/hal_intr.h>
  55
  56 //-----------------------------------------------------------------------------
  57 // Baud rate specification, based on raw 24MHz clock
  58
  59 static unsigned short select_baud[] = {
  60            0,  // Unused
  61         2304,  // 50
  62         1536,  // 75
  63         1047,  // 110
  64          857,  // 134.5
  65          768,  // 150
  66          576,  // 200
  67          384,  // 300
  68          192,  // 600
  69           96,  // 1200
  70           64,  // 1800
  71           48,  // 2400
  72           32,  // 3600
  73           24,  // 4800
  74           16,  // 7200
  75           12,  // 9600
  76            8,  // 14400
  77            6,  // 19200
  78            3,  // 38400
  79            2,  // 57600
  80            1,  // 115200
  81            0,  // 230400
  82 };
  83
  84 #ifdef CYGPKG_IO_SERIAL_I386_PC_SERIAL0
  85 static pc_serial_info pc_serial_info0 = {CYGNUM_IO_SERIAL_I386_PC_SERIAL0_IOBASE,
  86                                          CYGNUM_IO_SERIAL_I386_PC_SERIAL0_INT};
  87 #if CYGNUM_IO_SERIAL_I386_PC_SERIAL0_BUFSIZE > 0
  88 static unsigned char pc_serial_out_buf0[CYGNUM_IO_SERIAL_I386_PC_SERIAL0_BUFSIZE];
  89 static unsigned char pc_serial_in_buf0[CYGNUM_IO_SERIAL_I386_PC_SERIAL0_BUFSIZE];
  90
  91 static SERIAL_CHANNEL_USING_INTERRUPTS(pc_serial_channel0,
  92                                        pc_serial_funs,
  93                                        pc_serial_info0,
  94                                        CYG_SERIAL_BAUD_RATE(CYGNUM_IO_SERIAL_I386_PC_SERIAL0_BAUD),
  95                                        CYG_SERIAL_STOP_DEFAULT,
  96                                        CYG_SERIAL_PARITY_DEFAULT,
  97                                        CYG_SERIAL_WORD_LENGTH_DEFAULT,
  98                                        CYG_SERIAL_FLAGS_DEFAULT,
  99                                        &pc_serial_out_buf0[0], sizeof(pc_serial_out_buf0),
 100                                        &pc_serial_in_buf0[0], sizeof(pc_serial_in_buf0)
 101     );
 102 #else
 103 static SERIAL_CHANNEL(pc_serial_channel0,
 104                       pc_serial_funs,
 105                       pc_serial_info0,
 106                       CYG_SERIAL_BAUD_RATE(CYGNUM_IO_SERIAL_I386_PC_SERIAL0_BAUD),
 107                       CYG_SERIAL_STOP_DEFAULT,
 108                       CYG_SERIAL_PARITY_DEFAULT,
 109                       CYG_SERIAL_WORD_LENGTH_DEFAULT,
 110                       CYG_SERIAL_FLAGS_DEFAULT
 111     );
 112 #endif
 113
 114 DEVTAB_ENTRY(pc_serial_io0,
 115              CYGDAT_IO_SERIAL_I386_PC_SERIAL0_NAME,
 116              0,                     // Does not depend on a lower level interface
 117              &cyg_io_serial_devio,
 118              pc_serial_init,
 119              pc_serial_lookup,     // Serial driver may need initializing
 120              &pc_serial_channel0
 121     );
 122 #endif //  CYGPKG_IO_SERIAL_I386_PC_SERIAL0
 123
 124 #ifdef CYGPKG_IO_SERIAL_I386_PC_SERIAL1
 125 static pc_serial_info pc_serial_info1 = {CYGNUM_IO_SERIAL_I386_PC_SERIAL1_IOBASE,
 126                                          CYGNUM_IO_SERIAL_I386_PC_SERIAL1_INT};
 127 #if CYGNUM_IO_SERIAL_I386_PC_SERIAL1_BUFSIZE > 0
 128 static unsigned char pc_serial_out_buf1[CYGNUM_IO_SERIAL_I386_PC_SERIAL1_BUFSIZE];
 129 static unsigned char pc_serial_in_buf1[CYGNUM_IO_SERIAL_I386_PC_SERIAL1_BUFSIZE];
 130
 131 static SERIAL_CHANNEL_USING_INTERRUPTS(pc_serial_channel1,
 132                                        pc_serial_funs,
 133                                        pc_serial_info1,
 134                                        CYG_SERIAL_BAUD_RATE(CYGNUM_IO_SERIAL_I386_PC_SERIAL1_BAUD),
 135                                        CYG_SERIAL_STOP_DEFAULT,
 136                                        CYG_SERIAL_PARITY_DEFAULT,
 137                                        CYG_SERIAL_WORD_LENGTH_DEFAULT,
 138                                        CYG_SERIAL_FLAGS_DEFAULT,
 139                                        &pc_serial_out_buf1[0], sizeof(pc_serial_out_buf1),
 140                                        &pc_serial_in_buf1[0], sizeof(pc_serial_in_buf1)
 141     );
 142 #else
 143 static SERIAL_CHANNEL(pc_serial_channel1,
 144                       pc_serial_funs,
 145                       pc_serial_info1,
 146                       CYG_SERIAL_BAUD_RATE(CYGNUM_IO_SERIAL_I386_PC_SERIAL1_BAUD),
 147                       CYG_SERIAL_STOP_DEFAULT,
 148                       CYG_SERIAL_PARITY_DEFAULT,
 149                       CYG_SERIAL_WORD_LENGTH_DEFAULT,
 150                       CYG_SERIAL_FLAGS_DEFAULT
 151     );
 152 #endif
 153
 154 DEVTAB_ENTRY(pc_serial_io1,
 155              CYGDAT_IO_SERIAL_I386_PC_SERIAL1_NAME,
 156              0,                     // Does not depend on a lower level interface
 157              &cyg_io_serial_devio,
 158              pc_serial_init,
 159              pc_serial_lookup,     // Serial driver may need initializing
 160              &pc_serial_channel1
 161     );
 162 #endif //  CYGPKG_IO_SERIAL_I386_PC_SERIAL1
 163
 164 // EOF i386_pc_ser.inl