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/* -*- Mode: C; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*-
* vim:expandtab:autoindent:tabstop=4:shiftwidth=4:filetype=c:cindent:textwidth=0:
*
* Copyright (C) 2005 Dell Inc.
* by Michael Brown <Michael_E_Brown@dell.com>
* Licensed under the Open Software License version 2.1
*
* Alternatively, you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published
* by the Free Software Foundation; either version 2 of the License,
* or (at your option) any later version.
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
* See the GNU General Public License for more details.
*/
// compat header should always be first header if including system headers
#include "smbios/compat.h"
#include <string>
#include <iostream>
#include <iomanip>
#include <stdlib.h>
#include <string.h>
#include "smbios/ISmi.h"
#include "smbios/IToken.h"
#include "smbios/SystemInfo.h"
#include "smbios/version.h"
#include "getopts.h"
// always include last if included.
#include "smbios/message.h"
using namespace std;
struct options opts[] =
{
{ 2, "value", "set new value", "v", 1 },
{ 4, "battery", "read battery setting", "b", 0 },
{ 5, "ac", "read ac setting", "a", 0 },
{ 252, "password", "BIOS setup password", "p", 1 },
{ 249, "rawpassword", "Do not auto-convert password to scancodes", NULL, 0 },
{ 255, "version", "Display libsmbios version information", NULL, 0 },
{ 0, NULL, NULL, NULL, 0 }
};
typedef u32 (*readfn)(u32 location, u32 *minValue, u32 *maxValue);
typedef u32 (*writefn)(const std::string &password, u32 location, u32 value, u32 *minValue, u32 *maxValue);
int
main (int argc, char **argv)
{
int retval = 0;
u8 location=0;
u32 curValue=0;
u32 minValue=0;
u32 maxValue=0;
bool set=false;
u32 newValue=0;
enum { batteryMode, acMode } mode = batteryMode;
readfn readFunction = &smi::readBatteryModeSetting;
writefn writeFunction = &smi::writeBatteryModeSetting;
const char *batStr = "Battery";
const char *acStr = "AC";
const char *defStr = batStr;
string password("");
bool rawPassword = false;
const int DELL_LCD_BRIGHNESS_TOKEN = 0x007d;
try
{
char *args = 0;
int c=0;
while ( (c=getopts(argc, argv, opts, &args)) != 0 )
{
switch(c)
{
case 2:
set=true;
newValue = strtol(args, NULL, 0);
break;
case 4:
mode = batteryMode;
readFunction = &smi::readBatteryModeSetting;
writeFunction = &smi::writeBatteryModeSetting;
defStr = batStr;
break;
case 5:
mode = acMode;
readFunction = &smi::readACModeSetting;
writeFunction = &smi::writeACModeSetting;
defStr = acStr;
break;
case 249:
rawPassword = true;
break;
case 252:
password = args;
break;
case 255:
cout << "Libsmbios version: " << LIBSMBIOS_RELEASE_VERSION << endl;
exit(0);
break;
default:
break;
}
free(args);
}
if((!rawPassword) && (1 == SMBIOSGetSmiPasswordCoding()) && strlen(password.c_str())>0)
{
cerr << endl;
cerr << "BIOS Password encoding has been detected as SCAN CODE format." << endl;
cerr << "Automatically changing password from ASCII coding to en_US scancode format." << endl;
cerr << "Use the --rawpassword option to disable this, for example, if you have " << endl;
cerr << "another language keyboard, then manually convert the ASCII password to" << endl;
cerr << "scan code format." << endl;
cerr << endl;
char *codedPass = new char[strlen(password.c_str())+1];
memset(codedPass, 0, strlen(password.c_str())+1);
SMBIOSMapAsciiTo_en_US_ScanCode(codedPass, password.c_str(), strlen(password.c_str()));
password = codedPass;
delete []codedPass;
}
smbios::TokenTableFactory *ttFactory = smbios::TokenTableFactory::getFactory() ;
smbios::ITokenTable *tokenTable = ttFactory->getSingleton();
smbios::IToken *token = &(*((*tokenTable)[ DELL_LCD_BRIGHNESS_TOKEN ]));
dynamic_cast< smbios::ISmiToken * >(token)->getSmiDetails( static_cast<u16*>(0), static_cast<u8*>(0), &location );
cout << hex;
cout << "Read " << defStr << " Mode Setting" << endl;
curValue = readFunction(location, &minValue, &maxValue);
cout << " current: " << curValue << endl;
cout << " min: " << minValue << endl;
cout << " max: " << maxValue << endl << endl;;
if(set && newValue >= minValue && newValue <= maxValue)
{
cout << "Write " << defStr << " Mode Setting" << endl;
curValue = writeFunction(password, location, newValue, &minValue, &maxValue);
cout << " current: " << curValue << endl;
cout << " min: " << minValue << endl;
cout << " max: " << maxValue << endl << endl;;
} else if(set) {
cout << endl;
cout << "Tried to set brighness level outside of allowable range." << endl;
cout << endl;
}
}
catch( const exception &e )
{
cerr << "An Error occurred. The Error message is: " << endl << e.what() << endl;
retval = 1;
}
catch ( ... )
{
cerr << "An Unknown Error occurred. Aborting." << endl;
retval = 2;
}
return retval;
}
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