//==========================================================================
// The 'main' function for the booter. Called by boot0 when booting
// from a block device, or by the network booter.
//
// arguments:
// biosdev - Value passed from boot1/NBP to specify the device
// that the booter was loaded from.
//
// If biosdev is kBIOSDevNetwork, then this function will return if
// booting was unsuccessful. This allows the PXE firmware to try the
// next boot device on its list.
void common_boot(int biosdev)
{
int status;
char *bootFile;
unsigned long adler32;
bool quiet;
bool firstRun = true;
bool instantMenu;
bool rescanPrompt;
unsigned int allowBVFlags = kBVFlagSystemVolume|kBVFlagForeignBoot;
unsigned int denyBVFlags = kBVFlagEFISystem;
// Set reminder to unload the PXE base code. Neglect to unload
// the base code will result in a hang or kernel panic.
gUnloadPXEOnExit = true;
// Record the device that the booter was loaded from.
gBIOSDev = biosdev & kBIOSDevMask;
// Initialize boot info structure.
initKernBootStruct();
// Setup VGA text mode.
// Not sure if it is safe to call setVideoMode() before the
// config table has been loaded. Call video_mode() instead.
#if DEBUG
printf("before video_mode\n");
#endif
video_mode( 2 ); // 80x25 mono text mode.
#if DEBUG
printf("after video_mode\n");
#endif
// Scan and record the system's hardware information.
scan_platform();
// First get info for boot volume.
scanBootVolumes(gBIOSDev, 0);
bvChain = getBVChainForBIOSDev(gBIOSDev);
setBootGlobals(bvChain);
// Load boot.plist config file
status = loadSystemConfig(&bootInfo->bootConfig);
if (getBoolForKey(kQuietBootKey, &quiet, &bootInfo->bootConfig) && quiet) {
gBootMode |= kBootModeQuiet;
}
// Override firstRun to get to the boot menu instantly by setting "Instant Menu"=y in system config
if (getBoolForKey(kInsantMenuKey, &instantMenu, &bootInfo->bootConfig) && instantMenu) {
firstRun = false;
}
// Loading preboot ramdisk if exists.
loadPrebootRAMDisk();
// Disable rescan option by default
gEnableCDROMRescan = false;
// Enable it with Rescan=y in system config
if (getBoolForKey(kRescanKey, &gEnableCDROMRescan, &bootInfo->bootConfig) && gEnableCDROMRescan) {
gEnableCDROMRescan = true;
}
// Ask the user for Rescan option by setting "Rescan Prompt"=y in system config.
rescanPrompt = false;
if (getBoolForKey(kRescanPromptKey, &rescanPrompt , &bootInfo->bootConfig) && rescanPrompt && biosDevIsCDROM(gBIOSDev)) {
gEnableCDROMRescan = promptForRescanOption();
}
// Enable touching a single BIOS device only if "Scan Single Drive"=y is set in system config.
if (getBoolForKey(kScanSingleDriveKey, &gScanSingleDrive, &bootInfo->bootConfig) && gScanSingleDrive) {
gScanSingleDrive = true;
}
// Create a list of partitions on device(s).
if (gScanSingleDrive) {
scanBootVolumes(gBIOSDev, &bvCount);
} else {
scanDisks(gBIOSDev, &bvCount);
}
// Create a separated bvr chain using the specified filters.
bvChain = newFilteredBVChain(0x80, 0xFF, allowBVFlags, denyBVFlags, &gDeviceCount);
gBootVolume = selectBootVolume(bvChain);
#if DEBUG
printf(" Default: %d, ->biosdev: %d, ->part_no: %d ->flags: %d\n", gBootVolume, gBootVolume->biosdev, gBootVolume->part_no, gBootVolume->flags);
printf(" bt(0,0): %d, ->biosdev: %d, ->part_no: %d ->flags: %d\n", gBIOSBootVolume, gBIOSBootVolume->biosdev, gBIOSBootVolume->part_no, gBIOSBootVolume->flags);
getc();
#endif
useGUI = TRUE;
// Override useGUI default
getBoolForKey(kGUIKey, &useGUI, &bootInfo->bootConfig);
// Before initGui, patch the video bios with the correct resolution
UInt32 params[4];
int count;
params[3] = 0;
autoResolution = TRUE;
// Override AutoResolution default
getBoolForKey(kAutoResolutionKey, &autoResolution, &bootInfo->bootConfig);
vbios_map * map = open_vbios(CT_UNKWN);
//Saving the bios in case we have to unpatch it
save_vbios(map);
if (autoResolution == TRUE) {
//Get Resolution from Graphics Mode key
count = getNumberArrayFromProperty(kGraphicsModeKey, params, 4);
if ( count < 3 ){
//If no Graphics Mode key, get from EDID
getResolution(¶ms[0], ¶ms[1], ¶ms[2]);
verbose("EDID Resolution: %dx%d\n",params[0], params[1]);
}
} else {
if ( params[2] == 256 ) params[2] = 8;
if ( params[2] == 555 ) params[2] = 16;
if ( params[2] == 888 ) params[2] = 32;
}
if (params[0]!=0 && params[1]!=0) {
unlock_vbios(map);
patch_vbios(map, params[0], params[1], params[2], 0, 0);
relock_vbios(map);
#if AUTORES_DEBUG
printf("Press Any Key...\n");
getc();
#endif
}
if (useGUI) {
/* XXX AsereBLN handle error */
initGUI();
}
setBootGlobals(bvChain);
// Parse args, load and start kernel.
while (1) {
const char *val;
int len;
int trycache;
long flags, cachetime, kerneltime, exttime, sleeptime, time;
int ret = -1;
void *binary = (void *)kLoadAddr;
bool tryresume;
bool tryresumedefault;
bool forceresume;
config_file_t systemVersion; // system.plist of booting partition
// additional variable for testing alternate kernel image locations on boot helper partitions.
char bootFileSpec[512];
// Initialize globals.
sysConfigValid = false;
gErrors = false;
status = getBootOptions(firstRun);
firstRun = false;
if (status == -1) continue;
status = processBootOptions();
// Status==1 means to chainboot
if ( status == 1 ) break;
// Status==-1 means that the config file couldn't be loaded or that gBootVolume is NULL
if ( status == -1 )
{
// gBootVolume == NULL usually means the user hit escape.
if(gBootVolume == NULL)
{
freeFilteredBVChain(bvChain);
if (gEnableCDROMRescan)
rescanBIOSDevice(gBIOSDev);
bvChain = newFilteredBVChain(0x80, 0xFF, allowBVFlags, denyBVFlags, &gDeviceCount);
setBootGlobals(bvChain);
}
continue;
}
// Other status (e.g. 0) means that we should proceed with boot.
if( bootArgs->Video.v_display == GRAPHICS_MODE )
drawBackground();
// Found and loaded a config file. Proceed with boot.
// Turn off any GUI elements
if( bootArgs->Video.v_display == GRAPHICS_MODE )
{
gui.devicelist.draw = false;
gui.bootprompt.draw = false;
gui.menu.draw = false;
gui.infobox.draw = false;
drawBackground();
updateVRAM();
}
/*
* AutoResolution - Reapply the patch or cancel if Graphics Mode was incorrect
* or EDID Info was insane
*/
getBoolForKey(kAutoResolutionKey, &autoResolution, &bootInfo->bootConfig);
//Restore the vbios for Cancelation
if ((autoResolution == FALSE) && map) {
unlock_vbios(map);
restore_vbios(map);
relock_vbios(map);
close_vbios(map);
}
if ((autoResolution == TRUE) && map) {
//Reapply patch in case resolution have changed
count = getNumberArrayFromProperty(kGraphicsModeKey, params, 4);
if ( count < 3 ) {
getResolution(¶ms[0], ¶ms[1], ¶ms[2]);
}
else
{
if ( params[2] == 256 ) params[2] = 8;
if ( params[2] == 555 ) params[2] = 16;
if ( params[2] == 888 ) params[2] = 32;
}
if (params[0]!=0 && params[1]!=0) {
unlock_vbios(map);
patch_vbios(map, params[0], params[1], params[2], 0, 0);
relock_vbios(map);
close_vbios(map);
}
}
// Find out which version mac os we're booting.
if (!loadConfigFile("System/Library/CoreServices/SystemVersion.plist", &systemVersion)) {
if (getValueForKey(kProductVersion, &val, &len, &systemVersion)) {
// getValueForKey uses const char for val
// so copy it and trim
strncpy(gMacOSVersion, val, MIN(len, 4));
gMacOSVersion[MIN(len, 4)] = '\0';
}
}
if (platformCPUFeature(CPU_FEATURE_EM64T)) {
archCpuType = CPU_TYPE_X86_64;
} else {
archCpuType = CPU_TYPE_I386;
}
if (getValueForKey(karch, &val, &len, &bootInfo->bootConfig)) {
if (strncmp(val, "i386", 4) == 0) {
archCpuType = CPU_TYPE_I386;
}
}
if (getValueForKey(k32BitModeFlag, &val, &len, &bootInfo->bootConfig)) {
archCpuType = CPU_TYPE_I386;
}
if (!getBoolForKey (kWake, &tryresume, &bootInfo->bootConfig)) {
tryresume = true;
tryresumedefault = true;
} else {
tryresumedefault = false;
}
if (!getBoolForKey (kForceWake, &forceresume, &bootInfo->bootConfig)) {
forceresume = false;
}
if (forceresume) {
tryresume = true;
tryresumedefault = false;
}
while (tryresume) {
const char *tmp;
BVRef bvr;
if (!getValueForKey(kWakeImage, &val, &len, &bootInfo->bootConfig))
val="/private/var/vm/sleepimage";
// Do this first to be sure that root volume is mounted
ret = GetFileInfo(0, val, &flags, &sleeptime);
if ((bvr = getBootVolumeRef(val, &tmp)) == NULL)
break;
// Can't check if it was hibernation Wake=y is required
if (bvr->modTime == 0 && tryresumedefault)
break;
if ((ret != 0) || ((flags & kFileTypeMask) != kFileTypeFlat))
break;
if (!forceresume && ((sleeptime+3)<bvr->modTime)) {
printf ("Hibernate image is too old by %d seconds. Use ForceWake=y to override\n",bvr->modTime-sleeptime);
break;
}
HibernateBoot((char *)val);
break;
}
// Reset cache name.
bzero(gCacheNameAdler + 64, sizeof(gCacheNameAdler) - 64);
sprintf(gCacheNameAdler + 64, "%s,%s", gRootDevice, bootInfo->bootFile);
adler32 = Adler32((unsigned char *)gCacheNameAdler, sizeof(gCacheNameAdler));
if (getValueForKey(kKernelCacheKey, &val, &len, &bootInfo->bootConfig)) {
strlcpy(gBootKernelCacheFile, val, len+1);
} else {
sprintf(gBootKernelCacheFile, "%s.%08lX", kDefaultCachePath, adler32);
}
// Check for cache file.
trycache = (((gBootMode & kBootModeSafe) == 0) &&
!gOverrideKernel &&
(gBootFileType == kBlockDeviceType) &&
(gMKextName[0] == '\0') &&
(gBootKernelCacheFile[0] != '\0'));
verbose("Loading Darwin %s\n", gMacOSVersion);
if (trycache) do {
// if we haven't found the kernel yet, don't use the cache
ret = GetFileInfo(NULL, bootInfo->bootFile, &flags, &kerneltime);
if ((ret != 0) || ((flags & kFileTypeMask) != kFileTypeFlat)) {
trycache = 0;
break;
}
ret = GetFileInfo(NULL, gBootKernelCacheFile, &flags, &cachetime);
if ((ret != 0) || ((flags & kFileTypeMask) != kFileTypeFlat)
|| (cachetime < kerneltime)) {
trycache = 0;
break;
}
ret = GetFileInfo("/System/Library/", "Extensions", &flags, &exttime);
if ((ret == 0) && ((flags & kFileTypeMask) == kFileTypeDirectory)
&& (cachetime < exttime)) {
trycache = 0;
break;
}
if (kerneltime > exttime) {
exttime = kerneltime;
}
if (cachetime != (exttime + 1)) {
trycache = 0;
break;
}
} while (0);
do {
if (trycache) {
bootFile = gBootKernelCacheFile;
verbose("Loading kernel cache %s\n", bootFile);
ret = LoadFile(bootFile);
binary = (void *)kLoadAddr;
if (ret >= 0) {
break;
}
}
bootFile = bootInfo->bootFile;
// Try to load kernel image from alternate locations on boot helper partitions.
sprintf(bootFileSpec, "com.apple.boot.P/%s", bootFile);
ret = GetFileInfo(NULL, bootFileSpec, &flags, &time);
if (ret == -1)
{
sprintf(bootFileSpec, "com.apple.boot.R/%s", bootFile);
ret = GetFileInfo(NULL, bootFileSpec, &flags, &time);
if (ret == -1)
{
sprintf(bootFileSpec, "com.apple.boot.S/%s", bootFile);
ret = GetFileInfo(NULL, bootFileSpec, &flags, &time);
if (ret == -1)
{
// Not found any alternate locations, using the original kernel image path.
strcpy(bootFileSpec, bootFile);
}
}
}
verbose("Loading kernel %s\n", bootFileSpec);
ret = LoadThinFatFile(bootFileSpec, &binary);
if (ret <= 0 && archCpuType == CPU_TYPE_X86_64)
{
archCpuType = CPU_TYPE_I386;
ret = LoadThinFatFile(bootFileSpec, &binary);
}
} while (0);
clearActivityIndicator();
#if DEBUG
printf("Pausing...");
sleep(8);
#endif
if (ret <= 0) {
printf("Can't find %s\n", bootFile);
if(gui.initialised) {
sleep(1);
drawBackground();
gui.devicelist.draw = true;
gui.redraw = true;
}
if (gBootFileType == kNetworkDeviceType) {
// Return control back to PXE. Don't unload PXE base code.
gUnloadPXEOnExit = false;
break;
}
} else {
/* Won't return if successful. */
ret = ExecKernel(binary);
}
}
// chainboot
if (status==1) {
if (getVideoMode() == GRAPHICS_MODE) { // if we are already in graphics-mode,
setVideoMode(VGA_TEXT_MODE, 0); // switch back to text mode
}
}
if ((gBootFileType == kNetworkDeviceType) && gUnloadPXEOnExit) {
nbpUnloadBaseCode();
}
}
int getBootOptions(bool firstRun)
{
int i;
int key;
int nextRow;
int timeout;
int bvCount;
BVRef bvr;
BVRef menuBVR;
bool showPrompt, newShowPrompt, isCDROM;
// Initialize default menu selection entry.
gBootVolume = menuBVR = selectBootVolume(bvChain);
if (biosDevIsCDROM(gBIOSDev)) {
isCDROM = true;
} else {
isCDROM = false;
}
// ensure we're in graphics mode if gui is setup
if (gui.initialised && bootArgs->Video.v_display == VGA_TEXT_MODE)
{
setVideoMode(GRAPHICS_MODE, 0);
}
// Clear command line boot arguments
clearBootArgs();
// Allow user to override default timeout.
if (multiboot_timeout_set) {
timeout = multiboot_timeout;
} else if (!getIntForKey(kTimeoutKey, &timeout, &bootInfo->bootConfig)) {
/* If there is no timeout key in the file use the default timeout
which is different for CDs vs. hard disks. However, if not booting
a CD and no config file could be loaded set the timeout
to zero which causes the menu to display immediately.
This way, if no partitions can be found, that is the disk is unpartitioned
or simply cannot be read) then an empty menu is displayed.
If some partitions are found, for example a Windows partition, then
these will be displayed in the menu as foreign partitions.
*/
if (isCDROM) {
timeout = kCDBootTimeout;
} else {
timeout = sysConfigValid ? kBootTimeout : 0;
}
}
if (timeout < 0) {
gBootMode |= kBootModeQuiet;
}
// If the user is holding down a modifier key, enter safe mode.
if ((readKeyboardShiftFlags() & 0x0F) != 0) {
gBootMode |= kBootModeSafe;
}
// 18seven's Quick-args macro
bool f8 = false, altf = false, shiftf = false, alts = false,
altv = false, altx = false; // x32 = false, x64 = false;
while (readKeyboardStatus())
{
key = bgetc ();
if (key == 0x4200) f8 = true;
if (key == 0x2100) altf = true;
if (key == 0x0046) shiftf = true;
if (key == 0x1F00) alts = true;
if (key == 0x2F00) altv = true;
if (key == 0x2D00) altx = true;
/* if (key == 0x0004) x32 = true;
if (key == 0x0007) x64 = true;
*/ }
// If user typed F8, abort quiet mode, and display the menu.
if (f8) {
gBootMode &= ~kBootModeQuiet;
timeout = 0;
}
// If user typed 'alt-v', boot in verbose mode.
if ((gBootMode & kBootModeQuiet) && firstRun && altv) {
addBootArg(kVerboseModeFlag);
}
// If user typed 'alt-s', boot in single user mode.
if ((gBootMode & kBootModeQuiet) && firstRun && alts) {
addBootArg(kSingleUserModeFlag);
}
if ((gBootMode & kBootModeQuiet) && firstRun && altf) {
addBootArg(kIgnoreCachesFlag);
}
if ((gBootMode & kBootModeQuiet) && firstRun && shiftf) {
addBootArg(kIgnoreBootFileFlag);
}
if ((gBootMode & kBootModeQuiet) && firstRun && altx) {
addBootArg(kSafeModeFlag);
}
/*
if ((gBootMode & kBootModeQuiet) && firstRun && x32) {
addBootArg(k32BitModeFlag);
}
if ((gBootMode & kBootModeQuiet) && firstRun && x64) {
addBootArg(k64BitModeFlag);
}
*/
if (bootArgs->Video.v_display == VGA_TEXT_MODE) {
setCursorPosition(0, 0, 0);
clearScreenRows(0, kScreenLastRow);
if (!(gBootMode & kBootModeQuiet)) {
// Display banner and show hardware info.
printf(bootBanner, (bootInfo->convmem + bootInfo->extmem) / 1024);
printf(getVBEInfoString());
}
changeCursor(0, kMenuTopRow, kCursorTypeUnderline, 0);
verbose("Scanning device %x...", gBIOSDev);
}
// When booting from CD, default to hard drive boot when possible.
if (isCDROM && firstRun) {
const char *val;
char *prompt = NULL;
char *name = NULL;
int cnt;
int optionKey;
if (getValueForKey(kCDROMPromptKey, &val, &cnt, &bootInfo->bootConfig)) {
prompt = malloc(cnt + 1);
strncat(prompt, val, cnt);
} else {
name = malloc(80);
getBootVolumeDescription(gBootVolume, name, 79, false);
prompt = malloc(256);
sprintf(prompt, "Press any key to start up from %s, or press F8 to enter startup options.", name);
free(name);
}
if (getIntForKey( kCDROMOptionKey, &optionKey, &bootInfo->bootConfig )) {
// The key specified is a special key.
} else {
// Default to F8.
optionKey = 0x4200;
}
// If the timeout is zero then it must have been set above due to the
// early catch of F8 which means the user wants to set boot options
// which we ought to interpret as meaning he wants to boot the CD.
if (timeout != 0) {
key = countdown(prompt, kMenuTopRow, timeout);
} else {
key = optionKey;
}
if (prompt != NULL) {
free(prompt);
}
clearScreenRows( kMenuTopRow, kMenuTopRow + 2 );
// Hit the option key ?
if (key == optionKey) {
gBootMode &= ~kBootModeQuiet;
timeout = 0;
} else {
key = key & 0xFF;
// Try booting hard disk if user pressed 'h'
if (biosDevIsCDROM(gBIOSDev) && key == 'h') {
BVRef bvr;
// Look at partitions hosting OS X other than the CD-ROM
for (bvr = bvChain; bvr; bvr=bvr->next) {
if ((bvr->flags & kBVFlagSystemVolume) && bvr->biosdev != gBIOSDev) {
gBootVolume = bvr;
}
}
}
goto done;
}
}
if (gBootMode & kBootModeQuiet) {
// No input allowed from user.
goto done;
}
if (firstRun && timeout > 0 && countdown("Press any key to enter startup options.", kMenuTopRow, timeout) == 0) {
// If the user is holding down a modifier key,
// enter safe mode.
if ((readKeyboardShiftFlags() & 0x0F) != 0) {
gBootMode |= kBootModeSafe;
}
goto done;
}
if (gDeviceCount) {
// Allocate memory for an array of menu items.
menuItems = malloc(sizeof(MenuItem) * gDeviceCount);
if (menuItems == NULL) {
goto done;
}
// Associate a menu item for each BVRef.
for (bvr=bvChain, i=gDeviceCount-1, selectIndex=0; bvr; bvr=bvr->next) {
if (bvr->visible) {
getBootVolumeDescription(bvr, menuItems[i].name, sizeof(menuItems[i].name) - 1, true);
menuItems[i].param = (void *) bvr;
if (bvr == menuBVR) {
selectIndex = i;
}
i--;
}
}
}
if (bootArgs->Video.v_display == GRAPHICS_MODE) {
// redraw the background buffer
gui.logo.draw = true;
drawBackground();
gui.devicelist.draw = true;
gui.redraw = true;
if (!(gBootMode & kBootModeQuiet)) {
bool showBootBanner = true;
// Check if "Boot Banner"=N switch is present in config file.
getBoolForKey(kBootBannerKey, &showBootBanner, &bootInfo->bootConfig);
if (showBootBanner) {
// Display banner and show hardware info.
gprintf(&gui.screen, bootBanner + 1, (bootInfo->convmem + bootInfo->extmem) / 1024);
}
// redraw background
memcpy(gui.backbuffer->pixels, gui.screen.pixmap->pixels, gui.backbuffer->width * gui.backbuffer->height * 4);
}
} else {
// Clear screen and hide the blinking cursor.
clearScreenRows(kMenuTopRow, kMenuTopRow + 2);
changeCursor(0, kMenuTopRow, kCursorTypeHidden, 0);
}
nextRow = kMenuTopRow;
showPrompt = true;
if (gDeviceCount) {
if( bootArgs->Video.v_display == VGA_TEXT_MODE ) {
printf("Use \30\31 keys to select the startup volume.");
}
showMenu( menuItems, gDeviceCount, selectIndex, kMenuTopRow + 2, kMenuMaxItems );
nextRow += min( gDeviceCount, kMenuMaxItems ) + 3;
}
// Show the boot prompt.
showPrompt = (gDeviceCount == 0) || (menuBVR->flags & kBVFlagNativeBoot);
showBootPrompt( nextRow, showPrompt );
do {
if (bootArgs->Video.v_display == GRAPHICS_MODE) {
// redraw background
memcpy( gui.backbuffer->pixels, gui.screen.pixmap->pixels, gui.backbuffer->width * gui.backbuffer->height * 4 );
// reset cursor co-ords
gui.debug.cursor = pos( gui.screen.width - 160 , 10 );
}
key = getc();
updateMenu( key, (void **) &menuBVR );
newShowPrompt = (gDeviceCount == 0) || (menuBVR->flags & kBVFlagNativeBoot);
if (newShowPrompt != showPrompt) {
showPrompt = newShowPrompt;
showBootPrompt( nextRow, showPrompt );
}
if (showPrompt) {
updateBootArgs(key);
}
switch (key) {
case kReturnKey:
if (gui.menu.draw) {
key=0;
break;
}
if (*gBootArgs == '?') {
char * argPtr = gBootArgs;
// Skip the leading "?" character.
argPtr++;
getNextArg(&argPtr, booterCommand);
getNextArg(&argPtr, booterParam);
/*
* TODO: this needs to be refactored.
*/
if (strcmp( booterCommand, "video" ) == 0) {
if (bootArgs->Video.v_display == GRAPHICS_MODE) {
showInfoBox(getVBEInfoString(), getVBEModeInfoString());
} else {
printVBEModeInfo();
}
} else if ( strcmp( booterCommand, "memory" ) == 0) {
if (bootArgs->Video.v_display == GRAPHICS_MODE ) {
showInfoBox("Memory Map", getMemoryInfoString());
} else {
printMemoryInfo();
}
} else if (strcmp(booterCommand, "lspci") == 0) {
lspci();
} else if (strcmp(booterCommand, "more") == 0) {
showTextFile(booterParam);
} else if (strcmp(booterCommand, "rd") == 0) {
processRAMDiskCommand(&argPtr, booterParam);
} else if (strcmp(booterCommand, "norescan") == 0) {
if (gEnableCDROMRescan) {
gEnableCDROMRescan = false;
break;
}
} else {
showHelp();
}
key = 0;
showBootPrompt(nextRow, showPrompt);
break;
}
gBootVolume = menuBVR;
setRootVolume(menuBVR);
gBIOSDev = menuBVR->biosdev;
break;
case kEscapeKey:
clearBootArgs();
break;
case kF2Key:
/*
* AutoResolution - Reapply the patch if Graphics Mode was incorrect or EDID Info was insane
*/
if ((gAutoResolution == TRUE) && map)
{
// get the new Graphics Mode key
processBootOptions();
UInt32 params[4];
params[3] = 0;
//Has the target Resolution Changed ?
int count = getNumberArrayFromProperty(kGraphicsModeKey, params, 4);
if ( count < 3 )
getResolution(params);
if ((params[0] != 0) && (params[1] != 0)
&& (params[0] != map->currentX) && (params[1] != map->currentY))
{
//Go back to TEXT mode while we change the mode
if (bootArgs->Video.v_display == GRAPHICS_MODE)
{
CursorState cursorState;
setVideoMode(VGA_TEXT_MODE, 0);
setCursorPosition(0, 0, 0);
clearScreenRows(0, kScreenLastRow);
changeCursor( 0, 0, kCursorTypeHidden, &cursorState );
//Reapply patch in case resolution have changed
patchVbios(map, params[0], params[1], params[2], 0, 0);
if (useGUI && (gui.initialised == true))
initGUI();
// Make sure all values are set
if (bootArgs->Video.v_display != GRAPHICS_MODE)
bootArgs->Video.v_display = GRAPHICS_MODE;
if (!useGUI)
useGUI = true;
// redraw the background buffer
drawBackground();
gui.devicelist.draw = true;
gui.redraw = true;
if (!(gBootMode & kBootModeQuiet))
{
bool showBootBanner = true;
// Check config file.
getBoolForKey(kBootBannerKey, &showBootBanner, &bootInfo->bootConfig);
if (showBootBanner)
// Display banner and show hardware info.
gprintf(&gui.screen, bootBanner + 1, (bootInfo->convmem + bootInfo->extmem) / 1024);
// redraw background
memcpy(gui.backbuffer->pixels, gui.screen.pixmap->pixels, gui.backbuffer->width * gui.backbuffer->height * 4);
}
nextRow = kMenuTopRow;
showPrompt = true;
if (gDeviceCount)
{
showMenu( menuItems, gDeviceCount, selectIndex, kMenuTopRow + 2, kMenuMaxItems );
nextRow += min( gDeviceCount, kMenuMaxItems ) + 3;
}
// Show the boot prompt.
showPrompt = (gDeviceCount == 0) || (menuBVR->flags & kBVFlagNativeBoot);
showBootPrompt( nextRow, showPrompt );
//this is used to avoid resetting the incorrect mode while quiting the boot menu
map->hasSwitched = true;
}
}
clearBootArgs();
key = 0;
}
break;
case kF5Key:
// New behavior:
// Clear gBootVolume to restart the loop
// if the user enabled rescanning the optical drive.
// Otherwise boot the default boot volume.
if (gEnableCDROMRescan) {
gBootVolume = NULL;
clearBootArgs();
}
break;
case kF10Key:
gScanSingleDrive = false;
scanDisks(gBIOSDev, &bvCount);
gBootVolume = NULL;
clearBootArgs();
break;
case kTabKey:
// New behavior:
// Switch between text & graphic interfaces
// Only Permitted if started in graphics interface
if (useGUI)
{
setVideoMode(VGA_TEXT_MODE, 0);
setCursorPosition(0, 0, 0);
clearScreenRows(0, kScreenLastRow);
// Display banner and show hardware info.
printf(bootBanner, (bootInfo->convmem + bootInfo->extmem) / 1024);
printf(getVBEInfoString());
clearScreenRows(kMenuTopRow, kMenuTopRow + 2);
changeCursor(0, kMenuTopRow, kCursorTypeHidden, 0);
nextRow = kMenuTopRow;
showPrompt = true;
if (gDeviceCount)
{
printf("Use \30\31 keys to select the startup volume.");
showMenu(menuItems, gDeviceCount, selectIndex, kMenuTopRow + 2, kMenuMaxItems);
nextRow += min(gDeviceCount, kMenuMaxItems) + 3;
}
showPrompt = (gDeviceCount == 0) || (menuBVR->flags & kBVFlagNativeBoot);
showBootPrompt(nextRow, showPrompt);
//changeCursor( 0, kMenuTopRow, kCursorTypeUnderline, 0 );
/*
* AutoResolution - make sure all values are set
*/
bootArgs->Video.v_display = VGA_TEXT_MODE;
useGUI = false;
}
else
{
gui.redraw = true;
setVideoMode(GRAPHICS_MODE, 0);
/*
* AutoResolution - make sure all values are set
*/
bootArgs->Video.v_display = GRAPHICS_MODE;
useGUI = true;
updateVRAM();
}
key = 0;
break;
default:
key = 0;
break;
}
} while (0 == key);
done:
if (bootArgs->Video.v_display == VGA_TEXT_MODE) {
clearScreenRows(kMenuTopRow, kScreenLastRow);
changeCursor(0, kMenuTopRow, kCursorTypeUnderline, 0);
}
shouldboot = false;
gui.menu.draw = false;
if (menuItems) {
free(menuItems);
menuItems = NULL;
}
return 0;
}