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Annotation of gforth/engine/io-beagle.c, revision 1.1

1.1     ! pazsan      1: /* serial IO for the beagle board
        !             2: 
        !             3:   Copyright (C) 2010 Free Software Foundation, Inc.
        !             4: 
        !             5:   This file is part of Gforth.
        !             6: 
        !             7:   Gforth is free software; you can redistribute it and/or
        !             8:   modify it under the terms of the GNU General Public License
        !             9:   as published by the Free Software Foundation, either version 3
        !            10:   of the License, or (at your option) any later version.
        !            11: 
        !            12:   This program is distributed in the hope that it will be useful,
        !            13:   but WITHOUT ANY WARRANTY; without even the implied warranty of
        !            14:   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
        !            15:   GNU General Public License for more details.
        !            16: 
        !            17:   You should have received a copy of the GNU General Public License
        !            18:   along with this program; if not, see http://www.gnu.org/licenses/.
        !            19: */
        !            20: 
        !            21: /* This file is a stub for now */
        !            22: 
        !            23: int terminal_prepped = 0;
        !            24: 
        !            25: void prep_terminal ()
        !            26: {
        !            27:   serial_init();
        !            28: 
        !            29:   terminal_prepped = 1;
        !            30: }
        !            31: 
        !            32: void deprep_terminal ()
        !            33: {
        !            34:   terminal_prepped = 0;
        !            35: }
        !            36: 
        !            37: long key_avail ()
        !            38: {
        !            39:   if(!terminal_prepped) prep_terminal();
        !            40: 
        !            41:   return serial_tstc();
        !            42: }
        !            43: 
        !            44: long getkey()
        !            45: {
        !            46:   if(!terminal_prepped) prep_terminal();
        !            47: 
        !            48:   return key_avail() ? serial_getc() : 0;
        !            49: }
        !            50: 
        !            51: void emit_char(char x)
        !            52: {
        !            53:   if(!terminal_prepped) prep_terminal();
        !            54: 
        !            55:   serial_putc(x);
        !            56: }
        !            57: 
        !            58: void type_chars(char *addr, unsigned int l)
        !            59: {
        !            60:   if(!terminal_prepped) prep_terminal();
        !            61: 
        !            62:   while(l--) serial_putc(*addr++);
        !            63: }
        !            64: 
        !            65: /* Stubs for interrupts */
        !            66: 
        !            67: void do_undefined_instruction()
        !            68: {
        !            69: }
        !            70: 
        !            71: void do_software_interrupt()
        !            72: {
        !            73: }
        !            74: 
        !            75: void do_prefetch_abort()
        !            76: {
        !            77: }
        !            78: 
        !            79: void do_data_abort()
        !            80: {
        !            81: }
        !            82: 
        !            83: void do_not_used()
        !            84: {
        !            85: }
        !            86: 
        !            87: void do_irq()
        !            88: {
        !            89: }
        !            90: 
        !            91: void do_fiq()
        !            92: {
        !            93: }
        !            94: 
        !            95: #define ADDRLEN(x) x, strlen(x)
        !            96: 
        !            97: void start_armboot()
        !            98: {
        !            99:   char **argv = { "gforth-ec", 0L };
        !           100: 
        !           101:   // type_chars(ADDRLEN("Welcome to Gforth on Beagle Board\n"));
        !           102:   main(1, argv, 0L);
        !           103: }
        !           104: 
        !           105: void lowlevel_init()
        !           106: {
        !           107: }
        !           108: 
        !           109: void cpy_clk_code()
        !           110: {
        !           111: }
        !           112: 
        !           113: void *memset(char *s, int c, unsigned int n)
        !           114: {
        !           115:   while(n--) *s++ = c;
        !           116:   return s;
        !           117: }