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console.cpp revision 1.5 
      1 /* -*-C++-*-	$NetBSD: console.cpp,v 1.5 2001/05/08 18:51:22 uch Exp $ */
      2 
      3 /*-
      4  * Copyright (c) 2001 The NetBSD Foundation, Inc.
      5  * All rights reserved.
      6  *
      7  * This code is derived from software contributed to The NetBSD Foundation
      8  * by UCHIYAMA Yasushi.
      9  *
     10  * Redistribution and use in source and binary forms, with or without
     11  * modification, are permitted provided that the following conditions
     12  * are met:
     13  * 1. Redistributions of source code must retain the above copyright
     14  *    notice, this list of conditions and the following disclaimer.
     15  * 2. Redistributions in binary form must reproduce the above copyright
     16  *    notice, this list of conditions and the following disclaimer in the
     17  *    documentation and/or other materials provided with the distribution.
     18  * 3. All advertising materials mentioning features or use of this software
     19  *    must display the following acknowledgement:
     20  *        This product includes software developed by the NetBSD
     21  *        Foundation, Inc. and its contributors.
     22  * 4. Neither the name of The NetBSD Foundation nor the names of its
     23  *    contributors may be used to endorse or promote products derived
     24  *    from this software without specific prior written permission.
     25  *
     26  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     27  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     28  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     29  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     30  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     31  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     32  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     33  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     34  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     35  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     36  * POSSIBILITY OF SUCH DAMAGE.
     37  */
     38 
     39 #include <hpcmenu.h>
     40 #include <console.h>
     41 
     42 Console *Console::_instance = 0;
     43 
     44 //
     45 // Display console
     46 //
     47 Console *
     48 Console::Instance()
     49 {
     50 	if (_instance == 0)
     51 		_instance = new Console;
     52 	return _instance;
     53 }
     54 
     55 void
     56 Console::Destroy()
     57 {
     58 	if (_instance)
     59 		delete _instance;
     60 	_instance = 0;
     61 }
     62 
     63 void
     64 Console::print(const TCHAR *fmt, ...)
     65 {
     66 	va_list ap;
     67 	va_start(ap, fmt);
     68 	wvsprintf(_bufw, fmt, ap);
     69 	va_end(ap);
     70 
     71 	// print to `Console Tab Window'
     72 	HPC_MENU.print(_bufw);
     73 }
     74 
     75 //
     76 // Serial console.
     77 //
     78 BOOL
     79 SerialConsole::init()
     80 {
     81 	// always open COM1 to supply clock and power for the
     82 	// sake of kernel serial driver
     83 	return openCOM1();
     84 }
     85 
     86 BOOL
     87 SerialConsole::setupMultibyteBuffer()
     88 {
     89 	size_t len = WideCharToMultiByte(CP_ACP, 0, _bufw, wcslen(_bufw),
     90 	    0, 0, 0, 0);
     91 	if (len + 1 > CONSOLE_BUFSIZE)
     92 		return FALSE;
     93 	if (!WideCharToMultiByte(CP_ACP, 0, _bufw, len, _bufm, len, 0, 0))
     94 		return FALSE;
     95 	_bufm[len] = '\0';
     96 
     97 	return TRUE;
     98 }
     99 
    100 void
    101 SerialConsole::print(const TCHAR *fmt, ...)
    102 {
    103 	SETUP_WIDECHAR_BUFFER();
    104 
    105 	if (!setupMultibyteBuffer())
    106 		return;
    107 
    108 	genericPrint(_bufm);
    109 }
    110 
    111 BOOL
    112 SerialConsole::openCOM1()
    113 {
    114 	int speed = HPC_PREFERENCE.serial_speed;
    115 
    116 	if (_handle == INVALID_HANDLE_VALUE) {
    117 		_handle = CreateFile(TEXT("COM1:"),
    118 		    GENERIC_READ | GENERIC_WRITE, 0, NULL, OPEN_EXISTING, 0,
    119 		    NULL);
    120 		if (_handle == INVALID_HANDLE_VALUE) {
    121 			Console::print(TEXT("couldn't open COM1\n"));
    122 			return FALSE;
    123 		}
    124 
    125 		DCB dcb;
    126 		if (!GetCommState(_handle, &dcb)) {
    127 			Console::print(TEXT("couldn't get COM port status.\n"));
    128 			goto bad;
    129 		}
    130 
    131 		dcb.BaudRate = speed;
    132 		if (!SetCommState(_handle, &dcb)) {
    133 			Console::print(TEXT("couldn't set baud rate to %s.\n"),
    134 			    speed);
    135 			goto bad;
    136 		}
    137 
    138 		Console::print(TEXT("BaudRate %d, ByteSize %#x, Parity %#x, StopBits %#x\n"),
    139 		    dcb.BaudRate, dcb.ByteSize, dcb.Parity, dcb.StopBits);
    140 		const char msg[] = "--------HPCBOOT--------\r\n";
    141 		unsigned long wrote;
    142 		WriteFile(_handle, msg, sizeof msg, &wrote, 0);
    143 	}
    144 
    145 	return TRUE;
    146  bad:
    147 	CloseHandle(_handle);
    148 	_handle = INVALID_HANDLE_VALUE;
    149 	return FALSE;
    150 }
    151 
    152 void
    153 SerialConsole::genericPrint(const char *buf)
    154 {
    155 	unsigned long wrote;
    156 	int i;
    157 
    158 	for (i = 0; *buf != '\0'; buf++) {
    159 		char c = *buf;
    160 		if (c == '\n')
    161 			WriteFile(_handle, "\r", 1, &wrote, 0);
    162 		WriteFile(_handle, &c, 1, &wrote, 0);
    163 	}
    164 }
    165