File:  [gforth] / gforth / engine / io-nxt.c
Revision 1.3: download - view: text, annotated - select for diffs
Sun Apr 22 20:51:55 2007 UTC (16 years, 11 months ago) by pazsan
Branches: MAIN
CVS tags: HEAD
Gforth says "hello"

    1: /* direct key io driver for NXT brick
    2: 
    3:   Copyright (C) 2007 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 2
   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, write to the Free Software
   19:   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111, USA.
   20: 
   21:   The following is stolen from the readline library for bash
   22: */
   23: 
   24: #include "config.h"
   25: #include "forth.h"
   26: #include "../arch/arm/nxt/AT91SAM7.h"
   27: #include "../arch/arm/nxt/bt.h"
   28: #include "../arch/arm/nxt/display.h"
   29: #include "../arch/arm/nxt/aic.h"
   30: #include "../arch/arm/nxt/systick.h"
   31: #include "../arch/arm/nxt/sound.h"
   32: #include "../arch/arm/nxt/interrupts.h"
   33: #include "../arch/arm/nxt/nxt_avr.h"
   34: #include "../arch/arm/nxt/nxt_motors.h"
   35: #include "../arch/arm/nxt/i2c.h"
   36: 
   37: int terminal_prepped = 0;
   38: 
   39: void
   40: show_splash(U32 milliseconds)
   41: {
   42:   display_clear(0);
   43:   display_goto_xy(6, 6);
   44:   display_string("Gforth");
   45:   display_update();
   46: 
   47:   systick_wait_ms(milliseconds);
   48: }
   49: 
   50: void prep_terminal ()
   51: {
   52:   aic_initialise();
   53:   interrupts_enable();
   54:   systick_init();
   55:   sound_init();
   56:   nxt_avr_init();
   57:   display_init();
   58:   nxt_motor_init();
   59:   i2c_init();
   60:   bt_init();
   61:   display_goto_xy(0,0);
   62:   display_clear(1);
   63: 
   64:   terminal_prepped = 1;
   65: }
   66: 
   67: void deprep_terminal ()
   68: {
   69:   terminal_prepped = 0;
   70: }
   71: 
   72: long key_avail ()
   73: {
   74:   if(!terminal_prepped) prep_terminal();
   75:   return bt_avail();
   76: }
   77: 
   78: Cell getkey()
   79: {
   80:   if(!terminal_prepped) prep_terminal();
   81:   return bt_getkey();
   82: }
   83: 
   84: void emit_char(char x)
   85: {
   86:   if(!terminal_prepped) prep_terminal();
   87:   display_char(x);
   88:   display_update();
   89:   bt_send(&x, 1);
   90: }
   91: 
   92: void type_chars(char *addr, unsigned int l)
   93: {
   94:   int i;
   95:   for(i=0; i<l; i++)
   96:     emit_char(addr[i]);
   97: }

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