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42 | pj | 1 | /* Project: OSLib |
2 | * Description: The OS Construction Kit |
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3 | * Date: 1.6.2000 |
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4 | * Idea by: Luca Abeni & Gerardo Lamastra |
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5 | * |
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6 | * OSLib is an SO project aimed at developing a common, easy-to-use |
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7 | * low-level infrastructure for developing OS kernels and Embedded |
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8 | * Applications; it partially derives from the HARTIK project but it |
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9 | * currently is independently developed. |
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10 | * |
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11 | * OSLib is distributed under GPL License, and some of its code has |
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12 | * been derived from the Linux kernel source; also some important |
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13 | * ideas come from studying the DJGPP go32 extender. |
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14 | * |
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15 | * We acknowledge the Linux Community, Free Software Foundation, |
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16 | * D.J. Delorie and all the other developers who believe in the |
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17 | * freedom of software and ideas. |
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18 | * |
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19 | * For legalese, check out the included GPL license. |
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20 | */ |
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21 | |||
22 | /* For accessing BIOS calls returning in Real Mode, or using VM86 */ |
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23 | |||
24 | #ifndef __LL_I386_X_BIOS_H__ |
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25 | #define __LL_I386_X_BIOS_H__ |
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26 | |||
27 | #include <ll/i386/defs.h> |
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28 | BEGIN_DEF |
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29 | |||
30 | #include <ll/i386/hw-data.h> |
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31 | #include <ll/i386/hw-instr.h> |
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32 | |||
33 | #define DOS_OFF(x) ((DWORD)(x) & 0x000F) |
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34 | #define DOS_SEG(x) (((DWORD)(x) & 0xFFFF0) >> 4) |
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35 | |||
36 | typedef union x_regs16 { |
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37 | struct { |
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38 | WORD ax __attribute__ ((packed)); |
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39 | WORD bx __attribute__ ((packed)); |
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40 | WORD cx __attribute__ ((packed)); |
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41 | WORD dx __attribute__ ((packed)); |
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42 | WORD si __attribute__ ((packed)); |
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43 | WORD di __attribute__ ((packed)); |
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44 | WORD cflag __attribute__ ((packed)); |
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45 | WORD _pad __attribute__ ((packed)); |
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46 | } x __attribute__ ((packed)); |
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47 | struct { |
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48 | BYTE al,ah __attribute__ ((packed)); |
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49 | BYTE bl,bh __attribute__ ((packed)); |
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50 | BYTE cl,ch __attribute__ ((packed)); |
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51 | BYTE dl,dh __attribute__ ((packed)); |
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52 | } h __attribute__ ((packed)); |
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53 | } X_REGS16; |
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54 | |||
55 | typedef struct x_sregs16 { |
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56 | WORD es __attribute__ ((packed)); |
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57 | WORD cs __attribute__ ((packed)); |
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58 | WORD ss __attribute__ ((packed)); |
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59 | WORD ds __attribute__ ((packed)); |
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60 | } X_SREGS16; |
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61 | |||
62 | typedef struct { |
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63 | /* The GDT linear address inheritable from X */ |
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83 | pj | 64 | DWORD _GDT_base; |
42 | pj | 65 | /* These are used for BIOS calling */ |
83 | pj | 66 | X_REGS16 _ir; |
67 | X_REGS16 _or; |
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68 | X_SREGS16 _sr; |
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69 | DWORD _irqno; |
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42 | pj | 70 | /* This is the X version */ |
83 | pj | 71 | DWORD _ver; |
42 | pj | 72 | } X_CALLBIOS; |
73 | |||
74 | X_CALLBIOS * x_bios_address(void); |
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75 | void X_meminfo(LIN_ADDR *b1,DWORD *s1,LIN_ADDR *b2,DWORD *s2); |
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76 | void X_callBIOS(int service,X_REGS16 *in,X_REGS16 *out,X_SREGS16 *s); |
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77 | void vm86_init(); |
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78 | TSS *vm86_get_tss(void); |
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79 | int vm86_callBIOS(int service,X_REGS16 *in,X_REGS16 *out,X_SREGS16 *s); |
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80 | |||
81 | END_DEF |
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82 | |||
83 | #endif |