reactos/freeldr/freeldr/options.c
Brian Palmer 5db0abce79 Better LBA support
Correctly determines FAT type based on cluster count instead of partition id

svn path=/trunk/; revision=2528
2002-01-19 00:37:06 +00:00

396 lines
11 KiB
C

/*
* FreeLoader
* Copyright (C) 1998-2002 Brian Palmer <brianp@sginet.com>
*
* This program is free software; 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.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include "freeldr.h"
#include "rtl.h"
#include "ui.h"
#include "options.h"
#include "miscboot.h"
#if 0
void DoOptionsMenu(void)
{
int OptionsMenuItemCount = 1; // Count is 1 because we don't show the "Set ReactOS Boot Flags" menu item yet
char OptionsMenuItems[2][80] = { "Boot Wizard", "Set ReactOS Boot Flags" /* i.e. Safe Mode, Last Known Good Configuration */ };
int OptionsMenuItemSelected = 0;
while (OptionsMenuItemSelected != -1)
{
OptionsMenuItemSelected = RunOptionsMenu(OptionsMenuItems, OptionsMenuItemCount, OptionsMenuItemSelected, "[Advanced Options]");
switch (OptionsMenuItemSelected)
{
case 0:
DoDiskOptionsMenu();
break;
}
}
}
void DoDiskOptionsMenu(void)
{
char DiskMenuItems[25][80];
int DiskMenuItemCount = 0;
int FloppyDiskMenuItemCount = 0;
int HardDiskMenuItemCount = 0;
int DiskMenuItemSelected = 0;
char temp[255];
int i;
FloppyDiskMenuItemCount = (int)*((char *)((0x40 * 16) + 0x10)); // Get number of floppy disks from bios data area 40:10
if (FloppyDiskMenuItemCount & 1)
FloppyDiskMenuItemCount = (FloppyDiskMenuItemCount >> 6) + 1;
else
FloppyDiskMenuItemCount = 0;
HardDiskMenuItemCount = (int)*((char *)((0x40 * 16) + 0x75)); // Get number of hard disks from bios data area 40:75
DiskMenuItemCount = FloppyDiskMenuItemCount + HardDiskMenuItemCount;
for (i=0; i<FloppyDiskMenuItemCount; i++)
{
strcpy(DiskMenuItems[i], "Floppy Disk ");
itoa(i + 1, temp, 10);
strcat(DiskMenuItems[i], temp);
}
for (i=0; i<HardDiskMenuItemCount; i++)
{
strcpy(DiskMenuItems[i + FloppyDiskMenuItemCount], "Hard Disk ");
itoa(i + 1, temp, 10);
strcat(DiskMenuItems[i + FloppyDiskMenuItemCount], temp);
strcat(DiskMenuItems[i + FloppyDiskMenuItemCount], " (");
itoa((get_heads(i+0x80) * get_cylinders(i+0x80) * get_sectors(i+0x80)) / 2048, temp, 10);
strcat(DiskMenuItems[i + FloppyDiskMenuItemCount], temp);
strcat(DiskMenuItems[i + FloppyDiskMenuItemCount], " MB)");
}
DiskMenuItemSelected = 0;
while (DiskMenuItemSelected != -1)
{
DiskMenuItemSelected = RunOptionsMenu(DiskMenuItems, DiskMenuItemCount, DiskMenuItemSelected, "[Boot Wizard]");
if (DiskMenuItemSelected != -1)
{
if (DiskMenuItemSelected < FloppyDiskMenuItemCount)
DoBootOptionsMenu(DiskMenuItemSelected, DiskMenuItems[DiskMenuItemSelected]);
else
DoBootOptionsMenu((DiskMenuItemSelected - FloppyDiskMenuItemCount) + 0x80, DiskMenuItems[DiskMenuItemSelected]);
}
}
}
void DoBootOptionsMenu(int BootDriveNum, char *BootDriveText)
{
int BootOptionsMenuItemCount = 2;
char BootOptionsMenuItems[2][80] = { "Boot To ", "Pick A Boot Partition" };
int BootOptionsMenuItemSelected = 0;
/*strcat(BootOptionsMenuItems[0], BootDriveText);
while (BootOptionsMenuItemSelected != -1)
{
BootOptionsMenuItemSelected = RunOptionsMenu(BootOptionsMenuItems, BootOptionsMenuItemCount, BootOptionsMenuItemSelected, "[Boot Options]");
switch (BootOptionsMenuItemSelected)
{
case 0:
BootDrive = BootDriveNum;
if (!biosdisk(_DISK_READ, BootDrive, 0, 0, 1, 1, (void*)0x7c00))
{
MessageBox("Disk Read Error");
return;
}
// Check for validity
if (*((WORD*)(0x7c00 + 0x1fe)) != 0xaa55)
{
MessageBox("Invalid boot sector magic (0xaa55)");
return;
}
RestoreScreen(ScreenBuffer);
showcursor();
gotoxy(CursorXPos, CursorYPos);
stop_floppy();
JumpToBootCode();
break;
case 1:
if (BootDriveNum < 0x80)
{
MessageBox("This option is not available for a floppy disk.");
continue;
}
else
DoBootPartitionOptionsMenu(BootDriveNum);
break;
}
}*/
}
void DoBootPartitionOptionsMenu(int BootDriveNum)
{
struct
{
int partition_num;
int partition_type;
int head, sector, cylinder;
} BootPartitions[8];
int BootOptionsMenuItemCount = 0;
char BootOptionsMenuItems[8][80];
int BootOptionsMenuItemSelected = 0;
int head, sector, cylinder;
int offset;
int i;
char temp[25];
/*BootDrive = BootDriveNum;
if (!biosdisk(_DISK_READ, BootDrive, 0, 0, 1, 1, SectorBuffer))
{
MessageBox("Disk Read Error");
return;
}
// Check for validity
if (*((WORD*)(SectorBuffer + 0x1fe)) != 0xaa55)
{
MessageBox("Invalid partition table magic (0xaa55)");
return;
}
offset = 0x1BE;
for (i=0; i<4; i++)
{
// Check for valid partition
if (SectorBuffer[offset + 4] != 0)
{
BootPartitions[BootOptionsMenuItemCount].partition_num = i;
BootPartitions[BootOptionsMenuItemCount].partition_type = SectorBuffer[offset + 4];
BootPartitions[BootOptionsMenuItemCount].head = SectorBuffer[offset + 1];
BootPartitions[BootOptionsMenuItemCount].sector = (SectorBuffer[offset + 2] & 0x3F);
BootPartitions[BootOptionsMenuItemCount].cylinder = SectorBuffer[offset + 3];
if (SectorBuffer[offset + 2] & 0x80)
BootPartitions[BootOptionsMenuItemCount].cylinder += 0x200;
if (SectorBuffer[offset + 2] & 0x40)
BootPartitions[BootOptionsMenuItemCount].cylinder += 0x100;
strcpy(BootOptionsMenuItems[BootOptionsMenuItemCount], "Boot To Partition ");
itoa(i+1, temp, 10);
strcat(BootOptionsMenuItems[BootOptionsMenuItemCount], temp);
strcat(BootOptionsMenuItems[BootOptionsMenuItemCount], " (Type: 0x");
itoa(BootPartitions[BootOptionsMenuItemCount].partition_type, temp, 16);
if (strlen(temp) < 2)
strcat(BootOptionsMenuItems[BootOptionsMenuItemCount], "0");
strcat(BootOptionsMenuItems[BootOptionsMenuItemCount], temp);
strcat(BootOptionsMenuItems[BootOptionsMenuItemCount], ")");
BootOptionsMenuItemCount++;
}
offset += 0x10;
}
while (BootOptionsMenuItemSelected != -1)
{
BootOptionsMenuItemSelected = RunOptionsMenu(BootOptionsMenuItems, BootOptionsMenuItemCount, BootOptionsMenuItemSelected, "[Boot Partition Options]");
if (BootOptionsMenuItemSelected != -1)
{
head = BootPartitions[BootOptionsMenuItemCount].head;
sector = BootPartitions[BootOptionsMenuItemCount].sector;
cylinder = BootPartitions[BootOptionsMenuItemCount].cylinder;
// Read partition boot sector
if (!biosdisk(_DISK_READ, BootDrive, head, cylinder, sector, 1, (void*)0x7c00))
{
MessageBox("Disk Read Error");
return;
}
// Check for validity
if (*((WORD*)(0x7c00 + 0x1fe)) != 0xaa55)
{
MessageBox("Invalid boot sector magic (0xaa55)");
return;
}
RestoreScreen(ScreenBuffer);
showcursor();
gotoxy(CursorXPos, CursorYPos);
stop_floppy();
JumpToBootCode();
}
}*/
}
int RunOptionsMenu(char OptionsMenuItems[][80], int OptionsMenuItemCount, int nOptionSelected, char *OptionsMenuTitle)
{
int key;
int second;
BOOL bDone = FALSE;
int nOptionsMenuBoxLeft;
int nOptionsMenuBoxRight;
int nOptionsMenuBoxTop;
int nOptionsMenuBoxBottom;
// Initialise the menu
InitOptionsMenu(&nOptionsMenuBoxLeft, &nOptionsMenuBoxTop, &nOptionsMenuBoxRight, &nOptionsMenuBoxBottom, OptionsMenuItemCount);
DrawBackdrop();
// Update the menu
DrawOptionsMenu(OptionsMenuItems, OptionsMenuItemCount, nOptionSelected, OptionsMenuTitle, nOptionsMenuBoxLeft, nOptionsMenuBoxTop, nOptionsMenuBoxRight, nOptionsMenuBoxBottom);
second = getsecond();
// Loop
do
{
// Check for a keypress
if (kbhit())
{
// Cancel the timeout
if (nTimeOut != -1)
{
nTimeOut = -1;
DrawOptionsMenu(OptionsMenuItems, OptionsMenuItemCount, nOptionSelected, OptionsMenuTitle, nOptionsMenuBoxLeft, nOptionsMenuBoxTop, nOptionsMenuBoxRight, nOptionsMenuBoxBottom);
}
// Get the key
key = getch();
// Is it extended?
if (key == 0)
key = getch(); // Yes - so get the extended key
// Process the key
switch (key)
{
case KEY_UP:
if (nOptionSelected)
{
nOptionSelected--;
// Update the menu
DrawOptionsMenu(OptionsMenuItems, OptionsMenuItemCount, nOptionSelected, OptionsMenuTitle, nOptionsMenuBoxLeft, nOptionsMenuBoxTop, nOptionsMenuBoxRight, nOptionsMenuBoxBottom);
}
break;
case KEY_DOWN:
if (nOptionSelected < (OptionsMenuItemCount - 1))
{
nOptionSelected++;
// Update the menu
DrawOptionsMenu(OptionsMenuItems, OptionsMenuItemCount, nOptionSelected, OptionsMenuTitle, nOptionsMenuBoxLeft, nOptionsMenuBoxTop, nOptionsMenuBoxRight, nOptionsMenuBoxBottom);
}
break;
case KEY_ENTER:
//MessageBox("The Advanced Options are still being implemented.");
bDone = TRUE;
break;
case KEY_ESC:
nOptionSelected = -1;
bDone = TRUE;
break;
}
}
// Update the date & time
UpdateDateTime();
if (nTimeOut > 0)
{
if (getsecond() != second)
{
second = getsecond();
nTimeOut--;
// Update the menu
DrawOptionsMenu(OptionsMenuItems, OptionsMenuItemCount, nOptionSelected, OptionsMenuTitle, nOptionsMenuBoxLeft, nOptionsMenuBoxTop, nOptionsMenuBoxRight, nOptionsMenuBoxBottom);
}
}
if (nTimeOut == 0)
bDone = TRUE;
}
while (!bDone);
return nOptionSelected;
}
void InitOptionsMenu(int *nOptionsMenuBoxLeft, int *nOptionsMenuBoxTop, int *nOptionsMenuBoxRight, int *nOptionsMenuBoxBottom, int OptionsMenuItemCount)
{
/*int height = OptionsMenuItemCount;
int width = 20;
height += 1; // Allow room for top & bottom borders
width += 18; // Allow room for left & right borders, plus 8 spaces on each side
// Calculate the OS list box area
*nOptionsMenuBoxLeft = (nScreenWidth - width) / 2;
*nOptionsMenuBoxRight = *nOptionsMenuBoxLeft + width;
*nOptionsMenuBoxTop = (nScreenHeight - height) / 2 + 1;
*nOptionsMenuBoxBottom = *nOptionsMenuBoxTop + height;*/
}
void DrawOptionsMenu(char OptionsMenuItems[][80], int OptionsMenuItemCount, int nOptionSelected, char *OptionsMenuTitle, int nOptionsMenuBoxLeft, int nOptionsMenuBoxTop, int nOptionsMenuBoxRight, int nOptionsMenuBoxBottom)
{
int i, j;
char text[260];
int space, space_left, space_right;
// Update the status bar
/*DrawStatusText(" Use \x18\x19 to select, then press ENTER. Press ESC to go back.");
DrawBox(nOptionsMenuBoxLeft, nOptionsMenuBoxTop, nOptionsMenuBoxRight, nOptionsMenuBoxBottom, D_VERT, D_HORZ, TRUE, TRUE, ATTR(cMenuFgColor, cMenuBgColor));
DrawText(nOptionsMenuBoxLeft + (((nOptionsMenuBoxRight - nOptionsMenuBoxLeft) - strlen(OptionsMenuTitle)) / 2) + 1, nOptionsMenuBoxTop, OptionsMenuTitle, ATTR(cMenuFgColor, cMenuBgColor));
for(i=0; i<OptionsMenuItemCount; i++)
{
space = (nOptionsMenuBoxRight - nOptionsMenuBoxLeft - 2) - strlen(OptionsMenuItems[i]);
space_left = (space / 2) + 1;
space_right = (space - space_left) + 1;
text[0] = '\0';
for(j=0; j<space_left; j++)
strcat(text, " ");
strcat(text, OptionsMenuItems[i]);
for(j=0; j<space_right; j++)
strcat(text, " ");
if(i == nOptionSelected)
{
DrawText(nOptionsMenuBoxLeft+1, nOptionsMenuBoxTop+1+i, text, ATTR(cSelectedTextColor, cSelectedTextBgColor));
}
else
{
DrawText(nOptionsMenuBoxLeft+1, nOptionsMenuBoxTop+1+i, text, ATTR(cTextColor, cMenuBgColor));
}
}*/
}
#endif