1 // Definitions for X86 bios disks.
3 // Copyright (C) 2008 Kevin O'Connor <kevin@koconnor.net>
5 // This file may be distributed under the terms of the GNU GPLv3 license.
9 #include "types.h" // u8
11 #define DISK_RET_SUCCESS 0x00
12 #define DISK_RET_EPARAM 0x01
13 #define DISK_RET_EADDRNOTFOUND 0x02
14 #define DISK_RET_EWRITEPROTECT 0x03
15 #define DISK_RET_ECHANGED 0x06
16 #define DISK_RET_EBOUNDARY 0x09
17 #define DISK_RET_EBADTRACK 0x0c
18 #define DISK_RET_ECONTROLLER 0x20
19 #define DISK_RET_ETIMEOUT 0x80
20 #define DISK_RET_ENOTLOCKED 0xb0
21 #define DISK_RET_ELOCKED 0xb1
22 #define DISK_RET_ENOTREMOVABLE 0xb2
23 #define DISK_RET_ETOOMANYLOCKS 0xb4
24 #define DISK_RET_EMEDIA 0xC0
25 #define DISK_RET_ENOTREADY 0xAA
27 // Bios disk structures.
37 #define GET_INT13EXT(regs,var) \
38 GET_FARVAR((regs)->ds, ((struct int13ext_s*)((regs)->si+0))->var)
39 #define SET_INT13EXT(regs,var,val) \
40 SET_FARVAR((regs)->ds, ((struct int13ext_s*)((regs)->si+0))->var, (val))
42 // Disk Physical Table definition
65 #define GET_INT13DPT(regs,var) \
66 GET_FARVAR((regs)->ds, ((struct int13dpt_s*)((regs)->si+0))->var)
67 #define SET_INT13DPT(regs,var,val) \
68 SET_FARVAR((regs)->ds, ((struct int13dpt_s*)((regs)->si+0))->var, (val))
70 // Floppy "Disk Base Table"
85 struct floppy_ext_dbt_s {
86 struct floppy_dbt_s dbt;
93 // Helper function for setting up a return code.
95 void __disk_ret(const char *fname, struct bregs *regs, u8 code);
96 #define disk_ret(regs, code) \
97 __disk_ret(__func__, (regs), (code))
100 extern struct floppy_ext_dbt_s diskette_param_table2;
101 void floppy_drive_setup();
102 void floppy_13(struct bregs *regs, u8 drive);
106 void disk_13(struct bregs *regs, u8 device);
107 void disk_13XX(struct bregs *regs, u8 device);
110 int cdrom_read_emu(u16 device, u32 lba, u32 count, void *far_buffer);
111 void cdrom_13(struct bregs *regs, u8 device);
112 void cdemu_13(struct bregs *regs);
113 void cdemu_134b(struct bregs *regs);