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 "ioport.h" // outb
10 #include "biosvar.h" // struct bregs
12 #define DISK_RET_SUCCESS 0x00
13 #define DISK_RET_EPARAM 0x01
14 #define DISK_RET_EADDRNOTFOUND 0x02
15 #define DISK_RET_EWRITEPROTECT 0x03
16 #define DISK_RET_ECHANGED 0x06
17 #define DISK_RET_EBOUNDARY 0x09
18 #define DISK_RET_EBADTRACK 0x0c
19 #define DISK_RET_ECONTROLLER 0x20
20 #define DISK_RET_ETIMEOUT 0x80
21 #define DISK_RET_ENOTLOCKED 0xb0
22 #define DISK_RET_ELOCKED 0xb1
23 #define DISK_RET_ENOTREMOVABLE 0xb2
24 #define DISK_RET_ETOOMANYLOCKS 0xb4
25 #define DISK_RET_EMEDIA 0xC0
26 #define DISK_RET_ENOTREADY 0xAA
28 // Bios disk structures.
39 #define GET_INT13EXT(regs,var) \
40 GET_FARVAR((regs)->ds, ((struct int13ext_s*)((regs)->si+0))->var)
41 #define SET_INT13EXT(regs,var,val) \
42 SET_FARVAR((regs)->ds, ((struct int13ext_s*)((regs)->si+0))->var, (val))
44 // Disk Physical Table definition
68 #define GET_INT13DPT(regs,var) \
69 GET_FARVAR((regs)->ds, ((struct int13dpt_s*)((regs)->si+0))->var)
70 #define SET_INT13DPT(regs,var,val) \
71 SET_FARVAR((regs)->ds, ((struct int13dpt_s*)((regs)->si+0))->var, (val))
73 // Floppy "Disk Base Table"
88 struct floppy_ext_dbt_s {
89 struct floppy_dbt_s dbt;
96 // Helper function for setting up a return code.
98 disk_ret(struct bregs *regs, u8 code)
101 SET_BDA(disk_last_status, code);
106 extern struct floppy_ext_dbt_s diskette_param_table2;
107 void floppy_13(struct bregs *regs, u8 drive);
111 void emu_access(struct bregs *regs, u8 device, u16 command);
112 void extended_access(struct bregs *regs, u8 device, u16 command);
113 void disk_13(struct bregs *regs, u8 device);
114 void disk_13XX(struct bregs *regs, u8 device);
117 void cdrom_13(struct bregs *regs, u8 device);
118 void cdemu_13(struct bregs *regs);
119 void cdemu_134b(struct bregs *regs);