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#include <arch/mm/page.h>
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#include <arch/mm/page.h>
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#include <arch/pm.h>
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#include <arch/pm.h>
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34
 
35
#define START_STACK (BOOT_OFFSET - BOOT_STACK_SIZE)
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#define START_STACK (BOOT_OFFSET - BOOT_STACK_SIZE)
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36
 
-
 
37
 
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-
 
39
 
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40
 
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41
 
-
 
42
 
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43
 
-
 
44
 
37
.section K_TEXT_START, "ax"
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.section K_TEXT_START, "ax"
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46
 
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KTEXT=8
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KTEXT=8
40
KDATA=16
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KDATA=16
41
 
49
 
Line 66... Line 74...
66
	jmpl $KTEXT, $multiboot_meeting_point
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	jmpl $KTEXT, $multiboot_meeting_point
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	multiboot_meeting_point:
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	multiboot_meeting_point:
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76
	
69
	pushl %ebx							# save parameters from GRUB
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	pushl %ebx							# save parameters from GRUB
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	pushl %eax
78
	pushl %eax
-
 
79
 
-
 
80
#ifdef CONFIG_FB
-
 
81
	mov $vesa_init,%esi;
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82
	mov $VESA_INIT_SEGMENT<<4,%edi;
-
 
83
	mov $e_vesa_init-vesa_init,%ecx;
-
 
84
	cld;
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85
	rep movsb;
-
 
86
 
-
 
87
	mov $VESA_INIT_SEGMENT<<4,%edi;
-
 
88
	call *%edi;
-
 
89
	mov %esi,KA2PA(vesa_ph_addr);
-
 
90
	mov %di,KA2PA(vesa_height);
-
 
91
	shr $16,%edi;
-
 
92
	mov %di,KA2PA(vesa_width);
-
 
93
	mov %bx,KA2PA(vesa_scanline);
-
 
94
	shr $16,%ebx;
-
 
95
	mov %bx,KA2PA(vesa_bpp);
-
 
96
#endif	
71
	
97
	
72
	call map_kernel							# map kernel and turn paging on
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	call map_kernel							# map kernel and turn paging on
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99
	
74
	popl %eax
100
	popl %eax
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	popl %ebx
101
	popl %ebx
Line 228... Line 254...
228
	movl %cr0, %ebx
254
	movl %cr0, %ebx
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	orl $(1<<31), %ebx
255
	orl $(1<<31), %ebx
230
	movl %ebx, %cr0
256
	movl %ebx, %cr0
231
	ret
257
	ret
232
 
258
 
-
 
259
#ifdef CONFIG_FB
-
 
260
vesa_init:
-
 
261
	jmp $selector(VESA_INIT_DES),$vesa_init_real-vesa_init;
-
 
262
.code16
-
 
263
vesa_init_real:	
-
 
264
 
-
 
265
	mov %cr0,%eax;
-
 
266
	and $~1,%eax;
-
 
267
	mov %eax,%cr0;
-
 
268
 
-
 
269
 
-
 
270
	jmp $VESA_INIT_SEGMENT,$vesa_init_real2-vesa_init;
-
 
271
 
-
 
272
vesa_init_real2:	
-
 
273
 
-
 
274
 
-
 
275
	mov %esp,%ebp;
-
 
276
	mov %ss,%cx;
-
 
277
	mov $VESA_INIT_SEGMENT,%bx;
-
 
278
	mov %bx,%ss;
-
 
279
	mov $0x0000fffc,%esp;
-
 
280
	push %ds;
-
 
281
	push %es;
-
 
282
	push %fs;
-
 
283
	push %gs;
-
 
284
	push %ebp;
-
 
285
	push %cx;
-
 
286
 
-
 
287
	mov %bx,%ds;
-
 
288
	mov %bx,%es;
-
 
289
	mov %bx,%fs;
-
 
290
	mov %bx,%gs;
-
 
291
 
-
 
292
	
-
 
293
	mov $vesa_idt-vesa_init,%ebx;
-
 
294
	lidtl (%ebx);
-
 
295
 
-
 
296
#define VESA_INFO_SIZE 1024
-
 
297
 
-
 
298
#define VESA_MODE_LIST_PTR_OFFSET 14 
-
 
299
#define VESA_MODE_WIDTH_OFFSET 18
-
 
300
#define VESA_MODE_HEIGHT_OFFSET 20
-
 
301
#define VESA_MODE_BPP_OFFSET 25
-
 
302
#define VESA_MODE_SCANLINE_OFFSET 16
-
 
303
#define VESA_MODE_PHADDR_OFFSET 40
-
 
304
 
-
 
305
#define VESA_END_OF_MODES 0xffff 
-
 
306
 
-
 
307
#define VESA_OK 0x4f 
-
 
308
 
-
 
309
#define VESA_GET_INFO 0x4f00 
-
 
310
#define VESA_GET_MODE_INFO 0x4f01
-
 
311
#define VESA_SET_MODE 0x4f02
-
 
312
 
-
 
313
#define CONFIG_VESA_BPP_a 255
-
 
314
 
-
 
315
#if CONFIG_VESA_BPP==24
-
 
316
#undef CONFIG_VESA_BPP_a
-
 
317
#define CONFIG_VESA_BPP_a 32
-
 
318
#endif
-
 
319
 
-
 
320
 
-
 
321
	mov $VESA_GET_INFO,%ax;
-
 
322
	mov $e_vesa_init-vesa_init,%di
-
 
323
	push %di;
-
 
324
	int $0x10;	
-
 
325
	pop %di;
-
 
326
	cmp $VESA_OK,%al;
-
 
327
	jnz 0f;
-
 
328
	mov 2+VESA_MODE_LIST_PTR_OFFSET(%di),%si;
-
 
329
	mov %si,%gs;
-
 
330
	mov VESA_MODE_LIST_PTR_OFFSET(%di),%si;
-
 
331
 
-
 
332
	add $VESA_INFO_SIZE,%di;
-
 
333
 
-
 
334
1:# Try next mode
-
 
335
	mov %gs:(%si),%cx;
-
 
336
	cmp $VESA_END_OF_MODES,%cx;
-
 
337
	jz 0f;
-
 
338
	inc %si;
-
 
339
	inc %si;
-
 
340
	push %cx;
-
 
341
	push %di;
-
 
342
	push %si;
-
 
343
	mov $VESA_GET_MODE_INFO,%ax;
-
 
344
	int $0x10;
-
 
345
	pop %si;
-
 
346
	pop %di;
-
 
347
	pop %cx;
-
 
348
	cmp $VESA_OK,%al;
-
 
349
	jnz 0f;
-
 
350
 
-
 
351
 
-
 
352
	mov $CONFIG_VESA_WIDTH,%ax;
-
 
353
	cmp VESA_MODE_WIDTH_OFFSET(%di),%ax;
-
 
354
	jnz 1b;
-
 
355
	mov $CONFIG_VESA_HEIGHT,%ax;
-
 
356
	cmp VESA_MODE_HEIGHT_OFFSET(%di),%ax;
-
 
357
	jnz 1b;
-
 
358
	mov $CONFIG_VESA_BPP,%al;
-
 
359
	cmp VESA_MODE_BPP_OFFSET(%di),%al;
-
 
360
	jz 2f;
-
 
361
	mov $CONFIG_VESA_BPP_a,%al;
-
 
362
	cmp VESA_MODE_BPP_OFFSET(%di),%al;
-
 
363
	jnz 1b;
-
 
364
 
-
 
365
2:
-
 
366
 
-
 
367
	mov %cx,%bx;
-
 
368
	or $0xC000,%bx;
-
 
369
	push %di;
-
 
370
	mov $VESA_SET_MODE,%ax;
-
 
371
	int $0x10;
-
 
372
	pop %di;
-
 
373
	cmp $VESA_OK,%al;
-
 
374
	jnz 0f;
-
 
375
	
-
 
376
	mov VESA_MODE_PHADDR_OFFSET(%di),%esi;
-
 
377
	mov VESA_MODE_WIDTH_OFFSET(%di),%ax;
-
 
378
	shl $16,%eax;
-
 
379
	mov VESA_MODE_HEIGHT_OFFSET(%di),%ax;
-
 
380
	mov VESA_MODE_BPP_OFFSET(%di),%bl;
-
 
381
	xor %bh,%bh;
-
 
382
	shl $16,%ebx;
-
 
383
	mov VESA_MODE_SCANLINE_OFFSET(%di),%bx;
-
 
384
	mov %eax,%edi; 
-
 
385
	
-
 
386
	
-
 
387
 
-
 
388
8:	
-
 
389
 
-
 
390
	mov %cr0,%eax;
-
 
391
	or $1,%eax;
-
 
392
	mov %eax,%cr0;
-
 
393
 
-
 
394
	jmp 9f;
-
 
395
9:
-
 
396
 
-
 
397
	pop %cx;
-
 
398
	pop %ebp;
-
 
399
	pop %gs;
-
 
400
	pop %fs;
-
 
401
	pop %es;
-
 
402
	pop %ds;
-
 
403
	mov %cx,%ss;
-
 
404
	mov %ebp,%esp;
-
 
405
 
-
 
406
	ljmpl $KTEXT,$(vesa_init_protect-vesa_init+VESA_INIT_SEGMENT<<4);
-
 
407
 
-
 
408
vesa_init_protect:	
-
 
409
.code32
-
 
410
	ret;
-
 
411
 
-
 
412
0:	#Error no Prefered mode found
-
 
413
 
-
 
414
	mov $0x111,%cx;
-
 
415
	push %di;
-
 
416
	push %cx;
-
 
417
	mov $VESA_GET_MODE_INFO,%ax;
-
 
418
	int $0x10;
-
 
419
	pop %cx;
-
 
420
	pop %di;
-
 
421
	cmp $VESA_OK,%al;
-
 
422
	jnz 1f;
-
 
423
	jmp 2b;
-
 
424
 
-
 
425
1:mov $0x0003,%ax;
-
 
426
	int $0x10;
-
 
427
	mov $0xffffffff,%edi; /* EGA text mode used, because of problems with VESA */
-
 
428
	jmp 8;
-
 
429
 
-
 
430
 
-
 
431
vesa_idt:
-
 
432
.word 0x03ff
-
 
433
.long 0
-
 
434
.align 4
-
 
435
e_vesa_init:
-
 
436
#endif	
-
 
437
 
-
 
438
 
233
 
439
 
234
.section K_DATA_START, "aw", @progbits
440
.section K_DATA_START, "aw", @progbits
235
 
441
 
-
 
442
 
-
 
443
 
236
.align 4096
444
.align 4096
237
page_directory:
445
page_directory:
238
	.space 4096, 0
446
	.space 4096, 0