reactos/boot/freeldr/freeldr/arch/powerpc/prep.c

   1 #include "freeldr.h"
   2 #include "machine.h"
   3 #include "ppcmmu/mmu.h"
   4 #include "prep.h"
   5
   6 int prep_serial = 0x800003f8;
   7
   8 void sync() { __asm__("eieio\n\tsync"); }
   9
  10 /* Simple serial */
  11
  12 void PpcPrepPutChar( int ch ) {
  13     if( ch == 0x0a ) {
  14         SetPhysByte(prep_serial, 0x0d);
  15         sync();
  16     }
  17     SetPhysByte(prep_serial, ch);
  18     sync();
  19 }
  20
  21 BOOLEAN PpcPrepDiskReadLogicalSectors
  22 ( ULONG DriveNumber, ULONGLONG SectorNumber,
  23   ULONG SectorCount, PVOID Buffer ) {
  24     int secct;
  25
  26     for(secct = 0; secct < SectorCount; secct++)
  27     {
  28         ide_seek(&ide1_desc, SectorNumber + secct, 0);
  29         ide_read(&ide1_desc, ((PCHAR)Buffer) + secct * 512, 512);
  30     }
  31     /* Never give up! */
  32     return TRUE;
  33 }
  34
  35 BOOLEAN PpcPrepConsKbHit()
  36 {
  37     return 1;
  38     //return GetPhysByte(prep_serial+5) & 1;
  39 }
  40
  41 int PpcPrepConsGetCh()
  42 {
  43     while(!PpcPrepConsKbHit());
  44     return GetPhysByte(prep_serial);
  45 }
  46
  47 void PpcPrepVideoClearScreen(UCHAR Attr)
  48 {
  49     printf("\033c");
  50 }
  51
  52 VIDEODISPLAYMODE PpcPrepVideoSetDisplayMode( char *DisplayMode, BOOLEAN Init )
  53 {
  54     return VideoTextMode;
  55 }
  56
  57 void PpcPrepVideoGetDisplaySize( PULONG Width, PULONG Height, PULONG Depth )
  58 {
  59     *Width = 80;
  60     *Height = 25;
  61     *Depth = 16;
  62 }
  63
  64 void PpcPrepVideoPrepareForReactOS(BOOLEAN setup)
  65 {
  66     pci_setup(&pci1_desc);
  67 }
  68
  69 int mmu_initialized = 0;
  70
  71 ULONG PpcPrepGetMemoryMap( PBIOS_MEMORY_MAP BiosMemoryMap,
  72                            ULONG MaxMemoryMapSize )
  73 {
  74     // xxx fixme
  75     BiosMemoryMap[0].Type = 1;
  76     BiosMemoryMap[0].BaseAddress = 0xe80000;
  77     BiosMemoryMap[0].Length = (64 * 1024 * 1024) - BiosMemoryMap[0].BaseAddress;
  78     if(!mmu_initialized)
  79     {
  80         MmuInit();
  81         mmu_initialized = 1;
  82     }
  83     MmuSetMemorySize(BiosMemoryMap[0].Length + BiosMemoryMap[0].BaseAddress);
  84     return 1;
  85 }
  86
  87 void PpcPrepInit()
  88 {
  89     MachVtbl.ConsPutChar = PpcPrepPutChar;
  90
  91     printf("Serial on\n");
  92
  93     ide_setup( &ide1_desc );
  94
  95     MachVtbl.DiskReadLogicalSectors = PpcPrepDiskReadLogicalSectors;
  96
  97     MachVtbl.ConsKbHit   = PpcPrepConsKbHit;
  98     MachVtbl.ConsGetCh   = PpcPrepConsGetCh;
  99
 100     MachVtbl.VideoClearScreen = PpcPrepVideoClearScreen;
 101     MachVtbl.VideoSetDisplayMode = PpcPrepVideoSetDisplayMode;
 102     MachVtbl.VideoGetDisplaySize = PpcPrepVideoGetDisplaySize;
 103
 104     MachVtbl.VideoPrepareForReactOS = PpcPrepVideoPrepareForReactOS;
 105
 106     MachVtbl.GetMemoryMap = PpcPrepGetMemoryMap;
 107
 108     printf( "FreeLDR version [%s]\n", GetFreeLoaderVersionString() );
 109
 110     BootMain( "" );
 111 }
 112