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1/*
2 * Copyright (c) 1999-2004 Apple Computer, Inc. All rights reserved.
3 *
4 * @APPLE_LICENSE_HEADER_START@
5 *
6 * Portions Copyright (c) 1999-2004 Apple Computer, Inc. All Rights
7 * Reserved. This file contains Original Code and/or Modifications of
8 * Original Code as defined in and that are subject to the Apple Public
9 * Source License Version 2.0 (the "License"). You may not use this file
10 * except in compliance with the License. Please obtain a copy of the
11 * License at http://www.apple.com/publicsource and read it before using
12 * this file.
13 *
14 * The Original Code and all software distributed under the License are
15 * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
16 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
17 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE OR NON- INFRINGEMENT. Please see the
19 * License for the specific language governing rights and limitations
20 * under the License.
21 *
22 * @APPLE_LICENSE_HEADER_END@
23 */
24
25#include "boot.h"
26#include "bootstruct.h"
27#include "fdisk.h"
28#include "ramdisk.h"
29#include "gui.h"
30#include "embedded.h"
31#include "pci.h"
32
33static bool shouldboot = false;
34
35extern int multiboot_timeout;
36extern int multiboot_timeout_set;
37
38extern BVRef bvChain;
39//extern intmenucount;
40
41extern intgDeviceCount;
42
43intselectIndex = 0;
44MenuItem * menuItems = NULL;
45
46enum {
47 kMenuTopRow = 5,
48 kMenuMaxItems = 10,
49 kScreenLastRow = 24
50};
51
52//==========================================================================
53
54typedef struct {
55 int x;
56 int y;
57 int type;
58} CursorState;
59
60static void changeCursor( int col, int row, int type, CursorState * cs )
61{
62 if (cs) getCursorPositionAndType( &cs->x, &cs->y, &cs->type );
63 setCursorType( type );
64 setCursorPosition( col, row, 0 );
65}
66
67static void moveCursor( int col, int row )
68{
69 setCursorPosition( col, row, 0 );
70}
71
72static void restoreCursor( const CursorState * cs )
73{
74 setCursorPosition( cs->x, cs->y, 0 );
75 setCursorType( cs->type );
76}
77
78//==========================================================================
79
80/* Flush keyboard buffer; returns TRUE if any of the flushed
81 * characters was F8.
82 */
83
84static bool flushKeyboardBuffer(void)
85{
86 bool status = false;
87
88 while ( readKeyboardStatus() ) {
89 if (bgetc() == 0x4200) status = true;
90 }
91 return status;
92}
93
94//==========================================================================
95
96static int countdown( const char * msg, int row, int timeout )
97{
98 unsigned long time;
99 int ch = 0;
100 int col = strlen(msg) + 1;
101
102 flushKeyboardBuffer();
103
104if( bootArgs->Video.v_display == VGA_TEXT_MODE )
105{
106moveCursor( 0, row );
107printf(msg);
108
109} else {
110
111position_t p = pos( gui.screen.width / 2 + 1 , ( gui.devicelist.pos.y + 3 ) + ( ( gui.devicelist.height - gui.devicelist.iconspacing ) / 2 ) );
112
113char dummy[80];
114getBootVolumeDescription( gBootVolume, dummy, 80, true );
115drawDeviceIcon( gBootVolume, gui.screen.pixmap, p );
116drawStrCenteredAt( (char *) msg, &font_small, gui.screen.pixmap, gui.countdown.pos );
117
118// make this screen the new background
119memcpy( gui.backbuffer->pixels, gui.screen.pixmap->pixels, gui.backbuffer->width * gui.backbuffer->height * 4 );
120
121}
122
123int multi_buff = 18 * (timeout);
124 int multi = ++multi_buff;
125
126 int lasttime=0;
127
128 for ( time = time18(), timeout++; timeout > 0; )
129 {
130if( time18() > lasttime)
131{
132multi--;
133lasttime=time18();
134}
135
136 if (ch = readKeyboardStatus())
137 break;
138
139 // Count can be interrupted by holding down shift,
140 // control or alt key
141 if ( ( readKeyboardShiftFlags() & 0x0F ) != 0 )
142{
143 ch = 1;
144 break;
145 }
146
147 if ( time18() >= time )
148 {
149 time += 18;
150 timeout--;
151
152if( bootArgs->Video.v_display == VGA_TEXT_MODE )
153{
154moveCursor( col, row );
155printf("(%d) ", timeout);
156}
157 }
158
159if( bootArgs->Video.v_display == GRAPHICS_MODE )
160{
161drawProgressBar( gui.screen.pixmap, 100, gui.progressbar.pos , ( multi * 100 / multi_buff ) );
162gui.redraw = true;
163updateVRAM();
164}
165
166 }
167
168 flushKeyboardBuffer();
169
170 return ch;
171}
172
173//==========================================================================
174
175static char gBootArgs[BOOT_STRING_LEN];
176static char * gBootArgsPtr = gBootArgs;
177static char * gBootArgsEnd = gBootArgs + BOOT_STRING_LEN - 1;
178static char booterCommand[BOOT_STRING_LEN];
179static char booterParam[BOOT_STRING_LEN];
180
181static void clearBootArgs(void)
182{
183gBootArgsPtr = gBootArgs;
184memset(gBootArgs, '\0', BOOT_STRING_LEN);
185
186if (bootArgs->Video.v_display == GRAPHICS_MODE) {
187clearGraphicBootPrompt();
188}
189}
190
191//==========================================================================
192
193static void showBootPrompt(int row, bool visible)
194{
195extern char bootPrompt[];
196extern char bootRescanPrompt[];
197
198if( bootArgs->Video.v_display == VGA_TEXT_MODE ) {
199changeCursor( 0, row, kCursorTypeUnderline, 0 );
200clearScreenRows( row, kScreenLastRow );
201}
202
203clearBootArgs();
204
205if (visible) {
206if (bootArgs->Video.v_display == VGA_TEXT_MODE) {
207if (gEnableCDROMRescan) {
208printf( bootRescanPrompt );
209} else {
210printf( bootPrompt );
211}
212}
213} else {
214if (bootArgs->Video.v_display == GRAPHICS_MODE) {
215clearGraphicBootPrompt();
216} else {
217printf("Press Enter to start up the foreign OS. ");
218}
219}
220}
221
222//==========================================================================
223
224static void updateBootArgs( int key )
225{
226 key &= kASCIIKeyMask;
227
228 switch ( key )
229 {
230 case kBackspaceKey:
231 if ( gBootArgsPtr > gBootArgs )
232 {
233 int x, y, t;
234 getCursorPositionAndType( &x, &y, &t );
235 if ( x == 0 && y )
236 {
237 x = 80; y--;
238 }
239 if (x)
240x--;
241if( bootArgs->Video.v_display == VGA_TEXT_MODE )
242{
243setCursorPosition( x, y, 0 );
244putca(' ', 0x07, 1);
245} else
246updateGraphicBootPrompt(kBackspaceKey);
247
248*gBootArgsPtr-- = '\0';
249}
250
251break;
252
253 default:
254 if ( key >= ' ' && gBootArgsPtr < gBootArgsEnd)
255 {
256if( bootArgs->Video.v_display == VGA_TEXT_MODE )
257putchar(key); // echo to screen
258else
259updateGraphicBootPrompt(key);
260*gBootArgsPtr++ = key;
261}
262
263break;
264 }
265}
266
267//==========================================================================
268
269static const MenuItem * gMenuItems = NULL;
270
271static int gMenuItemCount;
272static int gMenuRow;
273static int gMenuHeight;
274static int gMenuTop;
275static int gMenuBottom;
276static int gMenuSelection;
277
278static int gMenuStart;
279static int gMenuEnd;
280
281static void printMenuItem( const MenuItem * item, int highlight )
282{
283 printf(" ");
284
285 if ( highlight )
286 putca(' ', 0x70, strlen(item->name) + 4);
287 else
288 putca(' ', 0x07, 40);
289
290 printf(" %40s\n", item->name);
291}
292
293//==========================================================================
294
295static void showMenu( const MenuItem * items, int count,
296 int selection, int row, int height )
297{
298 int i;
299 CursorState cursorState;
300
301 if ( items == NULL || count == 0 )
302return;
303
304 // head and tail points to the start and the end of the list.
305 // top and bottom points to the first and last visible items
306 // in the menu window.
307
308 gMenuItems= items;
309 gMenuRow= row;
310 gMenuHeight= height;
311 gMenuItemCount= count;
312 gMenuTop= 0;
313 gMenuBottom= min( count, height ) - 1;
314 gMenuSelection= selection;
315
316 gMenuStart= 0;
317 gMenuEnd = min( count, gui.maxdevices ) - 1;
318
319// If the selected item is not visible, shift the list down.
320
321 if ( gMenuSelection > gMenuBottom )
322 {
323 gMenuTop += ( gMenuSelection - gMenuBottom );
324 gMenuBottom = gMenuSelection;
325 }
326
327if ( gMenuSelection > gMenuEnd )
328 {
329gMenuStart += ( gMenuSelection - gMenuEnd );
330 gMenuEnd = gMenuSelection;
331 }
332
333// Draw the visible items.
334
335if( bootArgs->Video.v_display == GRAPHICS_MODE )
336
337drawDeviceList(gMenuStart, gMenuEnd, gMenuSelection);
338
339else {
340
341changeCursor( 0, row, kCursorTypeHidden, &cursorState );
342
343for ( i = gMenuTop; i <= gMenuBottom; i++ )
344{
345printMenuItem( &items[i], (i == gMenuSelection) );
346}
347
348restoreCursor( &cursorState );
349 }
350}
351
352//==========================================================================
353
354static int updateMenu( int key, void ** paramPtr )
355{
356 int moved = 0;
357
358 union {
359 struct {
360 unsigned int
361 selectionUp : 1,
362 selectionDown : 1,
363 scrollUp : 1,
364 scrollDown : 1;
365 } f;
366 unsigned int w;
367 } draw = {{0}};
368
369 if ( gMenuItems == NULL )
370return 0;
371
372if( bootArgs->Video.v_display == GRAPHICS_MODE )
373{
374int res;
375
376// set navigation keys for horizontal layout as defaults
377int previous= 0x4B00;// left arrow
378int subsequent= 0x4D00;// right arrow
379int menu= 0x5000;// down arrow
380
381if ( gui.layout == VerticalLayout )
382{
383// set navigation keys for vertical layout
384previous= 0x4800;// up arrow
385subsequent= 0x5000;// down arrow
386menu= 0x4B00;// right arrow
387}
388
389if ( key == previous )
390{
391if ( gMenuSelection > gMenuTop )
392draw.f.selectionUp = 1;
393else if ( gMenuTop > 0 )
394draw.f.scrollDown = 1;
395
396}
397
398else if ( key == subsequent )
399{
400if ( gMenuSelection != gMenuBottom)
401draw.f.selectionDown = 1;
402else if ( gMenuBottom < ( gMenuItemCount - 1 ) )
403draw.f.scrollUp = 1;
404}
405
406else if ( key == menu )
407{
408if ( gui.menu.draw )
409updateInfoMenu(key);
410else
411drawInfoMenu();
412}
413
414else if ( gui.menu.draw )
415{
416res = updateInfoMenu(key);
417
418if ( res == CLOSE_INFO_MENU )
419gui.menu.draw = false;
420else
421{
422shouldboot = ( res != DO_NOT_BOOT );
423
424if ( shouldboot )
425gui.menu.draw = false;
426
427switch (res)
428{
429case BOOT_NORMAL:
430gVerboseMode = false;
431gBootMode = kBootModeNormal;
432break;
433
434case BOOT_VERBOSE:
435gVerboseMode = true;
436gBootMode = kBootModeNormal;
437*gBootArgsPtr++ = '-';
438*gBootArgsPtr++ = 'v';
439break;
440
441case BOOT_IGNORECACHE:
442gVerboseMode = false;
443gBootMode = kBootModeNormal;
444*gBootArgsPtr++ = '-';
445*gBootArgsPtr++ = 'f';
446break;
447
448case BOOT_SINGLEUSER:
449gVerboseMode = true;
450gBootMode = kBootModeNormal;
451*gBootArgsPtr++ = '-';
452*gBootArgsPtr++ = 's';
453break;
454}
455
456}
457
458}
459
460} else {
461switch ( key )
462{
463 case 0x4800: // Up Arrow
464if ( gMenuSelection != gMenuTop )
465draw.f.selectionUp = 1;
466else if ( gMenuTop > 0 )
467draw.f.scrollDown = 1;
468break;
469
470case 0x5000: // Down Arrow
471if ( gMenuSelection != gMenuBottom )
472draw.f.selectionDown = 1;
473else if ( gMenuBottom < (gMenuItemCount - 1) )
474draw.f.scrollUp = 1;
475break;
476}
477}
478
479 if ( draw.w )
480 {
481 if ( draw.f.scrollUp )
482 {
483 scollPage(0, gMenuRow, 40, gMenuRow + gMenuHeight - 1, 0x07, 1, 1);
484 gMenuTop++; gMenuBottom++;
485gMenuStart++; gMenuEnd++;
486 draw.f.selectionDown = 1;
487 }
488
489 if ( draw.f.scrollDown )
490 {
491 scollPage(0, gMenuRow, 40, gMenuRow + gMenuHeight - 1, 0x07, 1, -1);
492 gMenuTop--; gMenuBottom--;
493 gMenuStart--; gMenuEnd--;
494 draw.f.selectionUp = 1;
495 }
496
497 if ( draw.f.selectionUp || draw.f.selectionDown )
498 {
499
500CursorState cursorState;
501
502// Set cursor at current position, and clear inverse video.
503
504if( bootArgs->Video.v_display == VGA_TEXT_MODE )
505{
506changeCursor( 0, gMenuRow + gMenuSelection - gMenuTop, kCursorTypeHidden, &cursorState );
507printMenuItem( &gMenuItems[gMenuSelection], 0 );
508}
509
510if ( draw.f.selectionUp )
511{
512gMenuSelection--;
513if(( gMenuSelection - gMenuStart) == -1 )
514{
515gMenuStart--;
516gMenuEnd--;
517}
518
519} else {
520gMenuSelection++;
521if(( gMenuSelection - ( gui.maxdevices - 1) - gMenuStart) > 0 )
522{
523gMenuStart++;
524gMenuEnd++;
525}
526 }
527
528if( bootArgs->Video.v_display == VGA_TEXT_MODE )
529 {
530moveCursor( 0, gMenuRow + gMenuSelection - gMenuTop );
531printMenuItem( &gMenuItems[gMenuSelection], 1 );
532restoreCursor( &cursorState );
533
534 } else
535
536drawDeviceList (gMenuStart, gMenuEnd, gMenuSelection);
537
538}
539
540 *paramPtr = gMenuItems[gMenuSelection].param;
541 moved = 1;
542 }
543
544return moved;
545}
546
547//==========================================================================
548
549static void skipblanks( const char ** cpp )
550{
551 while ( **(cpp) == ' ' || **(cpp) == '\t' ) ++(*cpp);
552}
553
554//==========================================================================
555
556static const char * extractKernelName( char ** cpp )
557{
558 char * kn = *cpp;
559 char * cp = *cpp;
560 char c;
561
562 // Convert char to lower case.
563
564 c = *cp | 0x20;
565
566 // Must start with a letter or a '/'.
567
568 if ( (c < 'a' || c > 'z') && ( c != '/' ) )
569 return 0;
570
571 // Keep consuming characters until we hit a separator.
572
573 while ( *cp && (*cp != '=') && (*cp != ' ') && (*cp != '\t') )
574 cp++;
575
576 // Only SPACE or TAB separator is accepted.
577 // Reject everything else.
578
579 if (*cp == '=')
580 return 0;
581
582 // Overwrite the separator, and move the pointer past
583 // the kernel name.
584
585 if (*cp != '\0') *cp++ = '\0';
586 *cpp = cp;
587
588 return kn;
589}
590
591//==========================================================================
592
593static void
594printMemoryInfo(void)
595{
596 int line;
597 int i;
598 MemoryRange *mp = bootInfo->memoryMap;
599
600 // Activate and clear page 1
601 setActiveDisplayPage(1);
602 clearScreenRows(0, 24);
603 setCursorPosition( 0, 0, 1 );
604
605 printf("BIOS reported memory ranges:\n");
606 line = 1;
607 for (i=0; i<bootInfo->memoryMapCount; i++) {
608 printf("Base 0x%08x%08x, ",
609 (unsigned long)(mp->base >> 32),
610 (unsigned long)(mp->base));
611 printf("length 0x%08x%08x, type %d\n",
612 (unsigned long)(mp->length >> 32),
613 (unsigned long)(mp->length),
614 mp->type);
615 if (line++ > 20) {
616 pause();
617 line = 0;
618 }
619 mp++;
620 }
621 if (line > 0) {
622 pause();
623 }
624
625 setActiveDisplayPage(0);
626}
627
628char *getMemoryInfoString()
629{
630 int i;
631 MemoryRange *mp = bootInfo->memoryMap;
632char *buff = malloc(sizeof(char)*1024);
633if(!buff) return 0;
634
635char info[] = "BIOS reported memory ranges:\n";
636sprintf(buff, "%s", info);
637 for (i=0; i<bootInfo->memoryMapCount; i++) {
638 sprintf( buff+strlen(buff), "Base 0x%08x%08x, ",
639 (unsigned long)(mp->base >> 32),
640 (unsigned long)(mp->base));
641 sprintf( buff+strlen(buff), "length 0x%08x%08x, type %d\n",
642 (unsigned long)(mp->length >> 32),
643 (unsigned long)(mp->length),
644 mp->type);
645 mp++;
646 }
647return buff;
648}
649
650//==========================================================================
651
652void lspci(void)
653{
654if (bootArgs->Video.v_display == VGA_TEXT_MODE) {
655setActiveDisplayPage(1);
656clearScreenRows(0, 24);
657setCursorPosition(0, 0, 1);
658}
659
660dump_pci_dt(root_pci_dev->children);
661
662pause();
663
664if (bootArgs->Video.v_display == VGA_TEXT_MODE) {
665setActiveDisplayPage(0);
666}
667}
668
669//==========================================================================
670
671int getBootOptions(bool firstRun)
672{
673int i;
674int key;
675int nextRow;
676int timeout;
677int bvCount;
678BVRef bvr;
679BVRef menuBVR;
680bool showPrompt, newShowPrompt, isCDROM;
681
682// Initialize default menu selection entry.
683gBootVolume = menuBVR = selectBootVolume(bvChain);
684
685if (biosDevIsCDROM(gBIOSDev)) {
686isCDROM = true;
687} else {
688isCDROM = false;
689}
690
691// ensure we're in graphics mode if gui is setup
692if (gui.initialised) {
693if (bootArgs->Video.v_display == VGA_TEXT_MODE) {
694setVideoMode(GRAPHICS_MODE, 0);
695}
696}
697
698// Allow user to override default timeout.
699if (multiboot_timeout_set) {
700timeout = multiboot_timeout;
701} else if (!getIntForKey(kTimeoutKey, &timeout, &bootInfo->bootConfig)) {
702/* If there is no timeout key in the file use the default timeout
703 which is different for CDs vs. hard disks. However, if not booting
704 a CD and no config file could be loaded set the timeout
705 to zero which causes the menu to display immediately.
706 This way, if no partitions can be found, that is the disk is unpartitioned
707 or simply cannot be read) then an empty menu is displayed.
708 If some partitions are found, for example a Windows partition, then
709 these will be displayed in the menu as foreign partitions.
710 */
711if (isCDROM) {
712timeout = kCDBootTimeout;
713} else {
714timeout = sysConfigValid ? kBootTimeout : 0;
715}
716}
717
718if (timeout < 0) {
719gBootMode |= kBootModeQuiet;
720}
721
722// If the user is holding down a modifier key, enter safe mode.
723if ((readKeyboardShiftFlags() & 0x0F) != 0) {
724gBootMode |= kBootModeSafe;
725}
726
727#define QUICK_KEYS_ENABLED 1
728#if QUICK_KEYS_ENABLED
729{
730/* 18seven's Quick-args macro */
731bool f8 = false, altf = false, shiftf = false, alts = false,
732altv = false, x32 = false, x64 = false, altx = false;
733int key;
734while (readKeyboardStatus()) {
735key = bgetc ();
736if (key == 0x4200) f8 = true;
737if (key == 0x2100) altf = true;
738if (key == 0x2146) shiftf = true;
739if (key == 0x1F00) alts = true;
740if (key == 0x2F00) altv = true;
741if (key == 0x2D00) altx = true;
742if (key == 0x0403) x32 = true;
743if (key == 0x0705) x64 = true;
744}
745if (f8) {
746gBootMode &= ~kBootModeQuiet;
747timeout = 0;
748}
749if ((altf) && (gBootArgsPtr + 3 < gBootArgsEnd)) {
750*(gBootArgsPtr++) = ' ';
751*(gBootArgsPtr++) = '-';
752*(gBootArgsPtr++) = 'f';
753}
754if ((shiftf) && (gBootArgsPtr + 3 < gBootArgsEnd)) {
755*(gBootArgsPtr++) = ' ';
756*(gBootArgsPtr++) = '-';
757*(gBootArgsPtr++) = 'F';
758}
759if ((alts) && (gBootArgsPtr + 3 < gBootArgsEnd)) {
760*(gBootArgsPtr++) = ' ';
761*(gBootArgsPtr++) = '-';
762*(gBootArgsPtr++) = 's';
763}
764if ((altv) && (gBootArgsPtr + 3 < gBootArgsEnd)) {
765*(gBootArgsPtr++) = ' ';
766*(gBootArgsPtr++) = '-';
767*(gBootArgsPtr++) = 'v';
768}
769if ((altx) && (gBootArgsPtr + 3 < gBootArgsEnd)) {
770*(gBootArgsPtr++) = ' ';
771*(gBootArgsPtr++) = '-';
772*(gBootArgsPtr++) = 'x';
773}
774if ((x32) && (gBootArgsPtr + 5 < gBootArgsEnd)) {
775*(gBootArgsPtr++) = ' ';
776*(gBootArgsPtr++) = '-';
777*(gBootArgsPtr++) = 'x';
778*(gBootArgsPtr++) = '3';
779*(gBootArgsPtr++) = '2';
780}
781if ((x64) && (gBootArgsPtr + 5 < gBootArgsEnd)) {
782*(gBootArgsPtr++) = ' ';
783*(gBootArgsPtr++) = '-';
784*(gBootArgsPtr++) = 'x';
785*(gBootArgsPtr++) = '6';
786*(gBootArgsPtr++) = '4';
787}
788}
789
790#else
791{
792bool f8 = false;
793int key;
794while (readKeyboardStatus()) {
795key = bgetc ();
796if (key == 0x4200) f8 = true;
797}
798if (f8) {
799gBootMode &= ~kBootModeQuiet;
800timeout = 0;
801}
802}
803#endif
804
805if (bootArgs->Video.v_display == VGA_TEXT_MODE) {
806setCursorPosition(0, 0, 0);
807clearScreenRows(0, kScreenLastRow);
808if (!(gBootMode & kBootModeQuiet)) {
809// Display banner and show hardware info.
810printf(bootBanner, (bootInfo->convmem + bootInfo->extmem) / 1024);
811printf(getVBEInfoString());
812}
813changeCursor(0, kMenuTopRow, kCursorTypeUnderline, 0);
814verbose("Scanning device %x...", gBIOSDev);
815}
816
817// When booting from CD, default to hard drive boot when possible.
818if (isCDROM && firstRun) {
819const char *val;
820char *prompt;
821char *name;
822int cnt;
823int optionKey;
824
825if (getValueForKey(kCDROMPromptKey, &val, &cnt, &bootInfo->bootConfig)) {
826cnt += 1;
827prompt = malloc(cnt);
828strlcpy(prompt, val, cnt);
829} else {
830name = malloc(80);
831getBootVolumeDescription(gBootVolume, name, 80, false);
832prompt = malloc(256);
833sprintf(prompt, "Press any key to start up from %s, or press F8 to enter startup options.", name);
834free(name);
835cnt = 0;
836}
837
838if (getIntForKey( kCDROMOptionKey, &optionKey, &bootInfo->bootConfig )) {
839// The key specified is a special key.
840} else if (getValueForKey( kCDROMOptionKey, &val, &cnt, &bootInfo->bootConfig ) && cnt >= 1) {
841optionKey = val[0];
842} else {
843// Default to F8.
844optionKey = 0x4200;
845}
846
847// If the timeout is zero then it must have been set above due to the
848// early catch of F8 which means the user wants to set boot options
849// which we ought to interpret as meaning he wants to boot the CD.
850if (timeout != 0) {
851key = countdown(prompt, kMenuTopRow, timeout);
852} else {
853key = optionKey;
854}
855
856if (cnt) {
857free(prompt);
858}
859
860clearScreenRows( kMenuTopRow, kMenuTopRow + 2 );
861
862// Hit the option key ?
863if (key == optionKey) {
864gBootMode &= ~kBootModeQuiet;
865timeout = 0;
866} else {
867key = key & 0xFF;
868
869// Try booting hard disk if user pressed 'h'
870if (biosDevIsCDROM(gBIOSDev) && key == 'h') {
871BVRef bvr;
872
873// Look at partitions hosting OS X other than the CD-ROM
874for (bvr = bvChain; bvr; bvr=bvr->next) {
875if ((bvr->flags & kBVFlagSystemVolume) && bvr->biosdev != gBIOSDev) {
876gBootVolume = bvr;
877}
878}
879}
880goto done;
881}
882}
883
884if (gBootMode & kBootModeQuiet) {
885// No input allowed from user.
886goto done;
887}
888
889if (firstRun && timeout > 0 && countdown("Press any key to enter startup options.", kMenuTopRow, timeout) == 0) {
890// If the user is holding down a modifier key,
891// enter safe mode.
892if ((readKeyboardShiftFlags() & 0x0F) != 0) {
893gBootMode |= kBootModeSafe;
894}
895goto done;
896}
897
898if (gDeviceCount) {
899// Allocate memory for an array of menu items.
900menuItems = malloc(sizeof(MenuItem) * gDeviceCount);
901if (menuItems == NULL) {
902goto done;
903}
904
905// Associate a menu item for each BVRef.
906for (bvr=bvChain, i=gDeviceCount-1, selectIndex=0; bvr; bvr=bvr->next) {
907if (bvr->visible) {
908getBootVolumeDescription(bvr, menuItems[i].name, 80, true);
909menuItems[i].param = (void *) bvr;
910if (bvr == menuBVR) {
911selectIndex = i;
912}
913i--;
914}
915}
916}
917
918if (bootArgs->Video.v_display == GRAPHICS_MODE) {
919// redraw the background buffer
920drawBackground();
921gui.devicelist.draw = true;
922gui.redraw = true;
923if (!(gBootMode & kBootModeQuiet)) {
924bool showBootBanner = true;
925
926// Check if "Boot Banner"=N switch is present in config file.
927getBoolForKey(kBootBannerKey, &showBootBanner, &bootInfo->bootConfig);
928if (showBootBanner) {
929// Display banner and show hardware info.
930gprintf(&gui.screen, bootBanner + 1, (bootInfo->convmem + bootInfo->extmem) / 1024);
931}
932
933// redraw background
934memcpy(gui.backbuffer->pixels, gui.screen.pixmap->pixels, gui.backbuffer->width * gui.backbuffer->height * 4);
935}
936} else {
937// Clear screen and hide the blinking cursor.
938clearScreenRows(kMenuTopRow, kMenuTopRow + 2);
939changeCursor(0, kMenuTopRow, kCursorTypeHidden, 0);
940}
941
942nextRow = kMenuTopRow;
943showPrompt = true;
944
945if (gDeviceCount) {
946if( bootArgs->Video.v_display == VGA_TEXT_MODE ) {
947printf("Use \30\31 keys to select the startup volume.");
948}
949showMenu( menuItems, gDeviceCount, selectIndex, kMenuTopRow + 2, kMenuMaxItems );
950nextRow += min( gDeviceCount, kMenuMaxItems ) + 3;
951}
952
953// Show the boot prompt.
954showPrompt = (gDeviceCount == 0) || (menuBVR->flags & kBVFlagNativeBoot);
955showBootPrompt( nextRow, showPrompt );
956
957do {
958if (bootArgs->Video.v_display == GRAPHICS_MODE) {
959// redraw background
960memcpy( gui.backbuffer->pixels, gui.screen.pixmap->pixels, gui.backbuffer->width * gui.backbuffer->height * 4 );
961// reset cursor co-ords
962gui.debug.cursor = pos( gui.screen.width - 160 , 10 );
963}
964key = getc();
965updateMenu( key, (void **) &menuBVR );
966newShowPrompt = (gDeviceCount == 0) || (menuBVR->flags & kBVFlagNativeBoot);
967
968if (newShowPrompt != showPrompt) {
969showPrompt = newShowPrompt;
970showBootPrompt( nextRow, showPrompt );
971}
972
973if (showPrompt) {
974updateBootArgs(key);
975}
976
977switch (key) {
978case kReturnKey:
979if (gui.menu.draw) {
980key=0;
981break;
982}
983if (*gBootArgs == '?') {
984char * argPtr = gBootArgs;
985
986// Skip the leading "?" character.
987argPtr++;
988getNextArg(&argPtr, booterCommand);
989getNextArg(&argPtr, booterParam);
990
991/*
992* TODO: this needs to be refactored.
993*/
994if (strcmp( booterCommand, "video" ) == 0) {
995if (bootArgs->Video.v_display == GRAPHICS_MODE) {
996showInfoBox(getVBEInfoString(), getVBEModeInfoString());
997} else {
998printVBEModeInfo();
999}
1000} else if ( strcmp( booterCommand, "memory" ) == 0) {
1001if (bootArgs->Video.v_display == GRAPHICS_MODE ) {
1002showInfoBox("Memory Map", getMemoryInfoString());
1003} else {
1004printMemoryInfo();
1005}
1006} else if (strcmp(booterCommand, "lspci") == 0) {
1007lspci();
1008} else if (strcmp(booterCommand, "more") == 0) {
1009showTextFile(booterParam);
1010} else if (strcmp(booterCommand, "rd") == 0) {
1011processRAMDiskCommand(&argPtr, booterParam);
1012} else if (strcmp(booterCommand, "norescan") == 0) {
1013if (gEnableCDROMRescan) {
1014gEnableCDROMRescan = false;
1015break;
1016}
1017} else {
1018showHelp();
1019}
1020key = 0;
1021showBootPrompt(nextRow, showPrompt);
1022break;
1023}
1024gBootVolume = menuBVR;
1025setRootVolume(menuBVR);
1026gBIOSDev = menuBVR->biosdev;
1027break;
1028
1029case kEscapeKey:
1030clearBootArgs();
1031break;
1032
1033case kF5Key:
1034// New behavior:
1035// Clear gBootVolume to restart the loop
1036// if the user enabled rescanning the optical drive.
1037// Otherwise boot the default boot volume.
1038if (gEnableCDROMRescan) {
1039gBootVolume = NULL;
1040clearBootArgs();
1041}
1042break;
1043
1044case kF10Key:
1045gScanSingleDrive = false;
1046scanDisks(gBIOSDev, &bvCount);
1047gBootVolume = NULL;
1048clearBootArgs();
1049break;
1050
1051case kTabKey:
1052// New behavior:
1053// Switch between text & graphic interfaces
1054// Only Permitted if started in graphics interface
1055if (useGUI) {
1056if (bootArgs->Video.v_display == GRAPHICS_MODE) {
1057setVideoMode(VGA_TEXT_MODE, 0);
1058
1059setCursorPosition(0, 0, 0);
1060clearScreenRows(0, kScreenLastRow);
1061
1062// Display banner and show hardware info.
1063printf(bootBanner, (bootInfo->convmem + bootInfo->extmem) / 1024);
1064printf(getVBEInfoString());
1065
1066clearScreenRows(kMenuTopRow, kMenuTopRow + 2);
1067changeCursor(0, kMenuTopRow, kCursorTypeHidden, 0);
1068
1069nextRow = kMenuTopRow;
1070showPrompt = true;
1071
1072if (gDeviceCount) {
1073printf("Use \30\31 keys to select the startup volume.");
1074showMenu(menuItems, gDeviceCount, selectIndex, kMenuTopRow + 2, kMenuMaxItems);
1075nextRow += min(gDeviceCount, kMenuMaxItems) + 3;
1076}
1077
1078showPrompt = (gDeviceCount == 0) || (menuBVR->flags & kBVFlagNativeBoot);
1079showBootPrompt(nextRow, showPrompt);
1080//changeCursor( 0, kMenuTopRow, kCursorTypeUnderline, 0 );
1081} else {
1082gui.redraw = true;
1083setVideoMode(GRAPHICS_MODE, 0);
1084updateVRAM();
1085}
1086}
1087key = 0;
1088break;
1089
1090default:
1091key = 0;
1092break;
1093}
1094} while (0 == key);
1095
1096done:
1097if (bootArgs->Video.v_display == VGA_TEXT_MODE) {
1098clearScreenRows(kMenuTopRow, kScreenLastRow);
1099changeCursor(0, kMenuTopRow, kCursorTypeUnderline, 0);
1100}
1101shouldboot = false;
1102gui.menu.draw = false;
1103if (menuItems) {
1104free(menuItems);
1105menuItems = NULL;
1106}
1107return 0;
1108}
1109
1110//==========================================================================
1111
1112extern unsigned char chainbootdev;
1113extern unsigned char chainbootflag;
1114
1115bool copyArgument(const char *argName, const char *val, int cnt, char **argP, int *cntRemainingP)
1116{
1117 int argLen = argName ? strlen(argName) : 0;
1118 int len = argLen + cnt + 1; // +1 to account for space
1119
1120 if (len > *cntRemainingP) {
1121 error("Warning: boot arguments too long, truncating\n");
1122 return false;
1123 }
1124
1125 if (argName) {
1126 strncpy( *argP, argName, argLen );
1127 *argP += argLen;
1128 *argP[0] = '=';
1129 (*argP)++;
1130 len++; // +1 to account for '='
1131 }
1132 strncpy( *argP, val, cnt );
1133 *argP += cnt;
1134 *argP[0] = ' ';
1135 (*argP)++;
1136
1137 *cntRemainingP -= len;
1138 return true;
1139}
1140
1141//
1142// Returns TRUE if an argument was copied, FALSE otherwise
1143bool
1144processBootArgument(
1145 const char *argName, // The argument to search for
1146 const char *userString, // Typed-in boot arguments
1147 const char *kernelFlags, // Kernel flags from config table
1148 const char *configTable,
1149 char **argP, // Output value
1150 int *cntRemainingP, // Output count
1151 char *foundVal // found value
1152 )
1153{
1154 const char *val;
1155 int cnt;
1156 bool found = false;
1157
1158 if (getValueForBootKey(userString, argName, &val, &cnt)) {
1159 // Don't copy; these values will be copied at the end of argument processing.
1160 found = true;
1161 } else if (getValueForBootKey(kernelFlags, argName, &val, &cnt)) {
1162 // Don't copy; these values will be copied at the end of argument processing.
1163 found = true;
1164 } else if (getValueForKey(argName, &val, &cnt, &bootInfo->bootConfig)) {
1165 copyArgument(argName, val, cnt, argP, cntRemainingP);
1166 found = true;
1167 }
1168 if (found && foundVal) {
1169 strlcpy(foundVal, val, cnt+1);
1170 }
1171 return found;
1172}
1173
1174// Maximum config table value size
1175#define VALUE_SIZE 2048
1176
1177int
1178processBootOptions()
1179{
1180 const char * cp = gBootArgs;
1181 const char * val = 0;
1182 const char * kernel;
1183 int cnt;
1184 int userCnt;
1185 int cntRemaining;
1186 char * argP;
1187 char uuidStr[64];
1188 bool uuidSet = false;
1189 char * configKernelFlags;
1190 char * valueBuffer;
1191
1192 valueBuffer = malloc(VALUE_SIZE);
1193
1194 skipblanks( &cp );
1195
1196 // Update the unit and partition number.
1197
1198 if ( gBootVolume )
1199 {
1200 if (!( gBootVolume->flags & kBVFlagNativeBoot ))
1201 {
1202 readBootSector( gBootVolume->biosdev, gBootVolume->part_boff,
1203 (void *) 0x7c00 );
1204
1205 //
1206 // Setup edx, and signal intention to chain load the
1207 // foreign booter.
1208 //
1209
1210 chainbootdev = gBootVolume->biosdev;
1211 chainbootflag = 1;
1212
1213 return 1;
1214 }
1215
1216 setRootVolume(gBootVolume);
1217
1218 }
1219 // If no boot volume fail immediately because we're just going to fail
1220 // trying to load the config file anyway.
1221 else
1222 return -1;
1223
1224 // Load config table specified by the user, or use the default.
1225
1226 if (!getValueForBootKey(cp, "config", &val, &cnt)) {
1227 val = 0;
1228 cnt = 0;
1229 }
1230
1231 // Load com.apple.Boot.plist from the selected volume
1232 // and use its contents to override default bootConfig.
1233 // This is not a mandatory opeartion anymore.
1234
1235 loadOverrideConfig(&bootInfo->overrideConfig);
1236
1237 // Use the kernel name specified by the user, or fetch the name
1238 // in the config table, or use the default if not specified.
1239 // Specifying a kernel name on the command line, or specifying
1240 // a non-default kernel name in the config file counts as
1241 // overriding the kernel, which causes the kernelcache not
1242 // to be used.
1243
1244 gOverrideKernel = false;
1245 if (( kernel = extractKernelName((char **)&cp) )) {
1246 strcpy( bootInfo->bootFile, kernel );
1247 gOverrideKernel = true;
1248 } else {
1249 if ( getValueForKey( kKernelNameKey, &val, &cnt, &bootInfo->bootConfig ) ) {
1250 strlcpy( bootInfo->bootFile, val, cnt+1 );
1251 if (strcmp( bootInfo->bootFile, kDefaultKernel ) != 0) {
1252 gOverrideKernel = true;
1253 }
1254 } else {
1255 strcpy( bootInfo->bootFile, kDefaultKernel );
1256 }
1257 }
1258
1259 cntRemaining = BOOT_STRING_LEN - 2; // save 1 for NULL, 1 for space
1260 argP = bootArgs->CommandLine;
1261
1262 // Get config table kernel flags, if not ignored.
1263 if (getValueForBootKey(cp, kIgnoreBootFileFlag, &val, &cnt) ||
1264 !getValueForKey( kKernelFlagsKey, &val, &cnt, &bootInfo->bootConfig )) {
1265 val = "";
1266 cnt = 0;
1267 }
1268 configKernelFlags = malloc(cnt + 1);
1269 strlcpy(configKernelFlags, val, cnt + 1);
1270
1271 if (processBootArgument(kBootUUIDKey, cp, configKernelFlags, bootInfo->config, &argP, &cntRemaining, 0)) {
1272 // boot-uuid was set either on the command-line
1273 // or in the config file.
1274 uuidSet = true;
1275 } else {
1276
1277 //
1278 // Try an alternate method for getting the root UUID on boot helper partitions.
1279 //
1280 if (gBootVolume->flags & kBVFlagBooter)
1281 {
1282 if((loadHelperConfig(&bootInfo->helperConfig) == 0)
1283 && getValueForKey(kHelperRootUUIDKey, &val, &cnt, &bootInfo->helperConfig) )
1284 {
1285 getValueForKey(kHelperRootUUIDKey, &val, &cnt, &bootInfo->helperConfig);
1286 copyArgument(kBootUUIDKey, val, cnt, &argP, &cntRemaining);
1287 uuidSet = true;
1288 }
1289 }
1290
1291 if (!uuidSet && gBootVolume->fs_getuuid && gBootVolume->fs_getuuid (gBootVolume, uuidStr) == 0) {
1292 verbose("Setting boot-uuid to: %s\n", uuidStr);
1293 copyArgument(kBootUUIDKey, uuidStr, strlen(uuidStr), &argP, &cntRemaining);
1294 uuidSet = true;
1295 }
1296 }
1297
1298 if (!processBootArgument(kRootDeviceKey, cp, configKernelFlags, bootInfo->config, &argP, &cntRemaining, gRootDevice)) {
1299 cnt = 0;
1300 if ( getValueForKey( kBootDeviceKey, &val, &cnt, &bootInfo->bootConfig)) {
1301 valueBuffer[0] = '*';
1302 cnt++;
1303 strlcpy(valueBuffer + 1, val, cnt);
1304 val = valueBuffer;
1305 } else {
1306 if (uuidSet) {
1307 val = "*uuid";
1308 cnt = 5;
1309 } else {
1310 // Don't set "rd=.." if there is no boot device key
1311 // and no UUID.
1312 val = "";
1313 cnt = 0;
1314 }
1315 }
1316 if (cnt > 0) {
1317 copyArgument( kRootDeviceKey, val, cnt, &argP, &cntRemaining);
1318 }
1319 strlcpy( gRootDevice, val, (cnt + 1));
1320 }
1321
1322 /*
1323 * Removed. We don't need this anymore.
1324 *
1325 if (!processBootArgument(kPlatformKey, cp, configKernelFlags, bootInfo->config, &argP, &cntRemaining, gPlatformName)) {
1326 getPlatformName(gPlatformName);
1327 copyArgument(kPlatformKey, gPlatformName, strlen(gPlatformName), &argP, &cntRemaining);
1328 }
1329 */
1330
1331 if (!getValueForBootKey(cp, kSafeModeFlag, &val, &cnt) &&
1332 !getValueForBootKey(configKernelFlags, kSafeModeFlag, &val, &cnt)) {
1333 if (gBootMode & kBootModeSafe) {
1334 copyArgument(0, kSafeModeFlag, strlen(kSafeModeFlag), &argP, &cntRemaining);
1335 }
1336 }
1337
1338 // Store the merged kernel flags and boot args.
1339
1340 cnt = strlen(configKernelFlags);
1341 if (cnt) {
1342 if (cnt > cntRemaining) {
1343 error("Warning: boot arguments too long, truncating\n");
1344 cnt = cntRemaining;
1345 }
1346 strncpy(argP, configKernelFlags, cnt);
1347 argP[cnt++] = ' ';
1348 cntRemaining -= cnt;
1349 }
1350 userCnt = strlen(cp);
1351 if (userCnt > cntRemaining) {
1352 error("Warning: boot arguments too long, truncating\n");
1353 userCnt = cntRemaining;
1354 }
1355 strncpy(&argP[cnt], cp, userCnt);
1356 argP[cnt+userCnt] = '\0';
1357
1358 if(!shouldboot)
1359 {
1360 gVerboseMode = getValueForKey( kVerboseModeFlag, &val, &cnt, &bootInfo->bootConfig ) ||
1361 getValueForKey( kSingleUserModeFlag, &val, &cnt, &bootInfo->bootConfig );
1362
1363 gBootMode = ( getValueForKey( kSafeModeFlag, &val, &cnt, &bootInfo->bootConfig ) ) ?
1364 kBootModeSafe : kBootModeNormal;
1365
1366 if ( getValueForKey( kOldSafeModeFlag, &val, &cnt, &bootInfo->bootConfig ) ) {
1367 gBootMode = kBootModeSafe;
1368 }
1369
1370 if ( getValueForKey( kMKextCacheKey, &val, &cnt, &bootInfo->bootConfig ) ) {
1371 strlcpy(gMKextName, val, cnt + 1);
1372 }
1373
1374 }
1375
1376 free(configKernelFlags);
1377 free(valueBuffer);
1378
1379 return 0;
1380}
1381
1382
1383//==========================================================================
1384// Load the help file and display the file contents on the screen.
1385
1386static void showTextBuffer(char *buf, int size)
1387{
1388char*bp;
1389intline;
1390intline_offset;
1391intc;
1392
1393if (bootArgs->Video.v_display == GRAPHICS_MODE) {
1394showInfoBox( "Press q to quit\n",buf );
1395return;
1396}
1397
1398 bp = buf;
1399 while (size-- > 0) {
1400if (*bp == '\n') {
1401*bp = '\0';
1402}
1403bp++;
1404 }
1405 *bp = '\1';
1406 line_offset = 0;
1407
1408 setActiveDisplayPage(1);
1409
1410 while (1) {
1411clearScreenRows(0, 24);
1412setCursorPosition(0, 0, 1);
1413bp = buf;
1414for (line = 0; *bp != '\1' && line < line_offset; line++) {
1415while (*bp != '\0') {
1416bp++;
1417}
1418bp++;
1419}
1420for (line = 0; *bp != '\1' && line < 23; line++) {
1421setCursorPosition(0, line, 1);
1422printf("%s\n", bp);
1423while (*bp != '\0') {
1424bp++;
1425}
1426bp++;
1427}
1428
1429setCursorPosition(0, 23, 1);
1430if (*bp == '\1') {
1431printf("[Type %sq or space to quit viewer]", (line_offset > 0) ? "p for previous page, " : "");
1432} else {
1433printf("[Type %s%sq to quit viewer]", (line_offset > 0) ? "p for previous page, " : "", (*bp != '\1') ? "space for next page, " : "");
1434}
1435
1436c = getc();
1437if (c == 'q' || c == 'Q') {
1438break;
1439}
1440if ((c == 'p' || c == 'P') && line_offset > 0) {
1441line_offset -= 23;
1442}
1443if (c == ' ') {
1444if (*bp == '\1') {
1445break;
1446} else {
1447line_offset += 23;
1448}
1449}
1450 }
1451 setActiveDisplayPage(0);
1452}
1453
1454void showHelp(void)
1455{
1456if (bootArgs->Video.v_display == GRAPHICS_MODE) {
1457showInfoBox("Help. Press q to quit.\n", (char *)BootHelp_txt);
1458} else {
1459showTextBuffer((char *)BootHelp_txt, BootHelp_txt_len);
1460}
1461}
1462
1463void showTextFile(const char * filename)
1464{
1465#define MAX_TEXT_FILE_SIZE 65536
1466char*buf;
1467intfd;
1468intsize;
1469
1470if ((fd = open_bvdev("bt(0,0)", filename, 0)) < 0) {
1471printf("\nFile not found: %s\n", filename);
1472sleep(2);
1473return;
1474}
1475
1476 size = file_size(fd);
1477 if (size > MAX_TEXT_FILE_SIZE) {
1478size = MAX_TEXT_FILE_SIZE;
1479}
1480 buf = malloc(size);
1481 read(fd, buf, size);
1482 close(fd);
1483showTextBuffer(buf, size);
1484free(buf);
1485}
1486
1487// This is a very simplistic prompting scheme that just grabs two hex characters
1488// Eventually we need to do something more user-friendly like display a menu
1489// based off of the Multiboot device list
1490
1491int selectAlternateBootDevice(int bootdevice)
1492{
1493int key;
1494int newbootdevice;
1495int digitsI = 0;
1496char *end;
1497char digits[3] = {0,0,0};
1498
1499// We've already printed the current boot device so user knows what it is
1500printf("Typical boot devices are 80 (First HD), 81 (Second HD)\n");
1501printf("Enter two-digit hexadecimal boot device [%02x]: ", bootdevice);
1502do {
1503key = getc();
1504switch (key & kASCIIKeyMask) {
1505case kBackspaceKey:
1506if (digitsI > 0) {
1507int x, y, t;
1508getCursorPositionAndType(&x, &y, &t);
1509// Assume x is not 0;
1510x--;
1511setCursorPosition(x,y,0); // back up one char
1512// Overwrite with space without moving cursor position
1513putca(' ', 0x07, 1);
1514digitsI--;
1515} else {
1516// TODO: Beep or something
1517}
1518break;
1519
1520case kReturnKey:
1521digits[digitsI] = '\0';
1522newbootdevice = strtol(digits, &end, 16);
1523if (end == digits && *end == '\0') {
1524// User entered empty string
1525printf("\nUsing default boot device %x\n", bootdevice);
1526key = 0;
1527} else if(end != digits && *end == '\0') {
1528bootdevice = newbootdevice;
1529printf("\n");
1530key = 0; // We gots da boot device
1531} else {
1532printf("\nCouldn't parse. try again: ");
1533digitsI = 0;
1534}
1535break;
1536
1537default:
1538if (isxdigit(key & kASCIIKeyMask) && digitsI < 2) {
1539putc(key & kASCIIKeyMask);
1540digits[digitsI++] = key & kASCIIKeyMask;
1541} else {
1542// TODO: Beep or something
1543}
1544break;
1545};
1546} while (key != 0);
1547
1548return bootdevice;
1549}
1550
1551bool promptForRescanOption(void)
1552{
1553printf("\nWould you like to enable media rescan option?\nPress ENTER to enable or any key to skip.\n");
1554if (getc() == kReturnKey) {
1555return true;
1556} else {
1557return false;
1558}
1559}
1560

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