packages/devs/serial/mips/ref4955/v2_0/include/mips_tx49_ref4955_ser.inl

   1 //==========================================================================
   2 //
   3 //      devs/serial/mips/ref4955/src/mips_tx49_ref4955_ser.inl
   4 //
   5 //      REF4955 Serial I/O definitions.
   6 //
   7 //==========================================================================
   8 //####ECOSGPLCOPYRIGHTBEGIN####
   9 // -------------------------------------------
  10 // This file is part of eCos, the Embedded Configurable Operating System.
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  12 //
  13 // eCos is free software; you can redistribute it and/or modify it under
  14 // the terms of the GNU General Public License as published by the Free
  15 // Software Foundation; either version 2 or (at your option) any later version.
  16 //
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  20 // for more details.
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  38 // -------------------------------------------
  39 //####ECOSGPLCOPYRIGHTEND####
  40 //==========================================================================
  41 //#####DESCRIPTIONBEGIN####
  42 //
  43 // Author(s):   jskov
  44 // Contributors:gthomas, jskov
  45 // Date:        2000-05-24
  46 // Purpose:     REF4955 Serial definitions
  47 //####DESCRIPTIONEND####
  48 //==========================================================================
  49
  50 #include <cyg/hal/hal_intr.h>
  51
  52 //-----------------------------------------------------------------------------
  53 // There are two serial ports.
  54 #define CYG_DEVICE_SERIAL_SCC1    0xb40003f8 // port 1
  55 #define CYG_DEVICE_SERIAL_SCC2    0xb40002f8 // port 2
  56
  57 //-----------------------------------------------------------------------------
  58 // The REF4955 board has a 14.318 MHz crystal, but the PC87338 part
  59 // uses a 24MHz internal clock for baud rate calculation.
  60 #define BAUD_DIVISOR(_x_) 24000000/13/16/(_x_)
  61
  62 static unsigned short select_baud[] = {
  63     0,    // Unused
  64     0,    // 50
  65     0,    // 75
  66     0,    // 110
  67     0,    // 134.5
  68     0,    // 150
  69     0,    // 200
  70     0,    // 300
  71     0,    // 600
  72     BAUD_DIVISOR(1200),
  73     0,    // 1800
  74     BAUD_DIVISOR(2400),
  75     0,    // 3600
  76     BAUD_DIVISOR(4800),
  77     0 ,   // 7200
  78     BAUD_DIVISOR(9600),
  79     BAUD_DIVISOR(14400),
  80     BAUD_DIVISOR(19200),
  81     BAUD_DIVISOR(38400),
  82     BAUD_DIVISOR(57600),
  83     BAUD_DIVISOR(115200),
  84     0,    // 230400
  85 };
  86
  87 //-----------------------------------------------------------------------------
  88 // Port 0 descriptors
  89
  90 #ifdef CYGPKG_IO_SERIAL_MIPS_REF4955_SERIAL0
  91 static pc_serial_info pc_serial_info0 = {CYG_DEVICE_SERIAL_SCC1,
  92                                          CYGNUM_HAL_INTERRUPT_DEBUG_UART};
  93 #if CYGNUM_IO_SERIAL_MIPS_REF4955_SERIAL0_BUFSIZE > 0
  94 static unsigned char pc_serial_out_buf0[CYGNUM_IO_SERIAL_MIPS_REF4955_SERIAL0_BUFSIZE];
  95 static unsigned char pc_serial_in_buf0[CYGNUM_IO_SERIAL_MIPS_REF4955_SERIAL0_BUFSIZE];
  96
  97 static SERIAL_CHANNEL_USING_INTERRUPTS(pc_serial_channel0,
  98                                        pc_serial_funs,
  99                                        pc_serial_info0,
 100                                        CYG_SERIAL_BAUD_RATE(CYGNUM_IO_SERIAL_MIPS_REF4955_SERIAL0_BAUD),
 101                                        CYG_SERIAL_STOP_DEFAULT,
 102                                        CYG_SERIAL_PARITY_DEFAULT,
 103                                        CYG_SERIAL_WORD_LENGTH_DEFAULT,
 104                                        CYG_SERIAL_FLAGS_DEFAULT,
 105                                        &pc_serial_out_buf0[0],
 106                                        sizeof(pc_serial_out_buf0),
 107                                        &pc_serial_in_buf0[0],
 108                                        sizeof(pc_serial_in_buf0)
 109     );
 110 #else
 111 static SERIAL_CHANNEL(pc_serial_channel0,
 112                       pc_serial_funs,
 113                       pc_serial_info0,
 114                       CYG_SERIAL_BAUD_RATE(CYGNUM_IO_SERIAL_MIPS_REF4955_SERIAL0_BAUD),
 115                       CYG_SERIAL_STOP_DEFAULT,
 116                       CYG_SERIAL_PARITY_DEFAULT,
 117                       CYG_SERIAL_WORD_LENGTH_DEFAULT,
 118                       CYG_SERIAL_FLAGS_DEFAULT
 119     );
 120 #endif
 121
 122 DEVTAB_ENTRY(pc_serial_io0,
 123              CYGDAT_IO_SERIAL_MIPS_REF4955_SERIAL0_NAME,
 124              0,                 // Does not depend on a lower level interface
 125              &cyg_io_serial_devio,
 126              pc_serial_init,
 127              pc_serial_lookup,     // Serial driver may need initializing
 128              &pc_serial_channel0
 129     );
 130 #endif
 131
 132 //-----------------------------------------------------------------------------
 133 // Port 1 descriptors
 134
 135 #ifdef CYGPKG_IO_SERIAL_MIPS_REF4955_SERIAL1
 136 static pc_serial_info pc_serial_info1 = {CYG_DEVICE_SERIAL_SCC2,
 137                                          CYGNUM_HAL_INTERRUPT_USER_UART};
 138 #if CYGNUM_IO_SERIAL_MIPS_REF4955_SERIAL1_BUFSIZE > 0
 139 static unsigned char pc_serial_out_buf1[CYGNUM_IO_SERIAL_MIPS_REF4955_SERIAL1_BUFSIZE];
 140 static unsigned char pc_serial_in_buf1[CYGNUM_IO_SERIAL_MIPS_REF4955_SERIAL1_BUFSIZE];
 141
 142 static SERIAL_CHANNEL_USING_INTERRUPTS(pc_serial_channel1,
 143                                        pc_serial_funs,
 144                                        pc_serial_info1,
 145                                        CYG_SERIAL_BAUD_RATE(CYGNUM_IO_SERIAL_MIPS_REF4955_SERIAL1_BAUD),
 146                                        CYG_SERIAL_STOP_DEFAULT,
 147                                        CYG_SERIAL_PARITY_DEFAULT,
 148                                        CYG_SERIAL_WORD_LENGTH_DEFAULT,
 149                                        CYG_SERIAL_FLAGS_DEFAULT,
 150                                        &pc_serial_out_buf1[0],
 151                                        sizeof(pc_serial_out_buf1),
 152                                        &pc_serial_in_buf1[0],
 153                                        sizeof(pc_serial_in_buf1)
 154     );
 155 #else
 156 static SERIAL_CHANNEL(pc_serial_channel1,
 157                       pc_serial_funs,
 158                       pc_serial_info1,
 159                       CYG_SERIAL_BAUD_RATE(CYGNUM_IO_SERIAL_MIPS_REF4955_SERIAL1_BAUD),
 160                       CYG_SERIAL_STOP_DEFAULT,
 161                       CYG_SERIAL_PARITY_DEFAULT,
 162                       CYG_SERIAL_WORD_LENGTH_DEFAULT,
 163                       CYG_SERIAL_FLAGS_DEFAULT
 164     );
 165 #endif
 166
 167 DEVTAB_ENTRY(pc_serial_io1,
 168              CYGDAT_IO_SERIAL_MIPS_REF4955_SERIAL1_NAME,
 169              0,                   // Does not depend on a lower level interface
 170              &cyg_io_serial_devio,
 171              pc_serial_init,
 172              pc_serial_lookup,     // Serial driver may need initializing
 173              &pc_serial_channel1
 174     );
 175 #endif
 176
 177 // EOF mips_tx49_ref4955_ser.inl