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| Rev | Author | Line No. | Line |
|---|---|---|---|
| 132 | giacomo | 1 | /* |
| 2 | Linux Real Mode Interface - A library of DPMI-like functions for Linux. |
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| 3 | |||
| 4 | Copyright (C) 1998 by Josh Vanderhoof |
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| 5 | |||
| 6 | You are free to distribute and modify this file, as long as you |
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| 7 | do not remove this copyright notice and clearly label modified |
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| 8 | versions as being modified. |
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| 9 | |||
| 10 | This software has NO WARRANTY. Use it at your own risk. |
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| 11 | */ |
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| 12 | |||
| 13 | #include <stdio.h> |
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| 14 | #include <string.h> |
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| 15 | #include <sys/types.h> |
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| 16 | #include <unistd.h> |
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| 17 | #include <fcntl.h> |
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| 18 | #include <stdlib.h> |
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| 19 | |||
| 20 | #include <ll/i386/hw-data.h> |
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| 21 | #include <ll/i386/x-dosmem.h> |
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| 22 | |||
| 23 | #include "lrmi.h" |
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| 24 | #include "libvga.h" |
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| 25 | |||
| 26 | #include <kernel/log.h> |
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| 27 | |||
| 28 | int |
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| 29 | LRMI_init(void) |
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| 30 | { |
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| 31 | DOS_mem_init(); |
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| 32 | return 0; |
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| 33 | } |
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| 34 | |||
| 35 | void * |
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| 36 | LRMI_alloc_real(int size) |
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| 37 | { |
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| 38 | return DOS_alloc(size); |
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| 39 | } |
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| 40 | |||
| 41 | void |
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| 42 | LRMI_free_real(void *m, int s) |
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| 43 | { |
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| 44 | DOS_free(m,s); |
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| 45 | } |
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| 46 | |||
| 47 | |||
| 48 | int LRMI_int(int i, struct LRMI_regs *r) |
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| 49 | { |
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| 50 | |||
| 51 | unsigned char p1,p2; |
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| 52 | |||
| 53 | X_REGS16 inregs, outregs; |
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| 54 | X_SREGS16 sregs; |
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| 55 | |||
| 185 | giacomo | 56 | memset(&inregs,0,sizeof(inregs)); |
| 57 | |||
| 132 | giacomo | 58 | inregs.x.ax = r->eax; |
| 59 | inregs.x.bx = r->ebx; |
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| 60 | inregs.x.cx = r->ecx; |
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| 61 | inregs.x.dx = r->edx; |
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| 62 | sregs.es = r->es; |
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| 63 | inregs.x.di = r->edi; |
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| 64 | |||
| 65 | #ifndef VM86 |
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| 66 | p1 = inp(0x21); |
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| 67 | p2 = inp(0xA1); |
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| 68 | outp(0x21,0xFF); |
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| 69 | outp(0xA1,0xFF); |
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| 70 | X_callBIOS(i, &inregs, &outregs, &sregs); |
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| 71 | outp(0x21,p1); |
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| 72 | outp(0xA1,p2); |
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| 73 | #else |
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| 74 | vm86_callBIOS(i, &inregs, &outregs, &sregs); |
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| 75 | #endif |
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| 76 | |||
| 77 | r->eax = outregs.x.ax; |
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| 78 | r->ebx = outregs.x.bx; |
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| 79 | r->ecx = outregs.x.cx; |
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| 80 | r->edx = outregs.x.dx; |
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| 81 | r->esi = outregs.x.si; |
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| 82 | r->edi = outregs.x.di; |
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| 83 | |||
| 84 | return 1; |
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| 85 | |||
| 86 | } |
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| 87 |