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
11 #include "util.h" // set_code_fail
13 #define DISK_RET_SUCCESS 0x00
14 #define DISK_RET_EPARAM 0x01
15 #define DISK_RET_EADDRNOTFOUND 0x02
16 #define DISK_RET_EWRITEPROTECT 0x03
17 #define DISK_RET_ECHANGED 0x06
18 #define DISK_RET_EBOUNDARY 0x09
19 #define DISK_RET_EBADTRACK 0x0c
20 #define DISK_RET_ECONTROLLER 0x20
21 #define DISK_RET_ETIMEOUT 0x80
22 #define DISK_RET_ENOTLOCKED 0xb0
23 #define DISK_RET_ELOCKED 0xb1
24 #define DISK_RET_ENOTREMOVABLE 0xb2
25 #define DISK_RET_ETOOMANYLOCKS 0xb4
26 #define DISK_RET_EMEDIA 0xC0
27 #define DISK_RET_ENOTREADY 0xAA
29 // 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
67 #define GET_INT13DPT(regs,var) \
68 GET_FARVAR((regs)->ds, ((struct int13dpt_s*)((regs)->si+0))->var)
69 #define SET_INT13DPT(regs,var,val) \
70 SET_FARVAR((regs)->ds, ((struct int13dpt_s*)((regs)->si+0))->var, (val))
72 // Floppy "Disk Base Table"
87 struct floppy_ext_dbt_s {
88 struct floppy_dbt_s dbt;
95 // Helper function for setting up a return code.
96 void __disk_ret(const char *fname, struct bregs *regs, u8 code);
97 #define disk_ret(regs, code) \
98 __disk_ret(__func__, (regs), (code))
101 extern struct floppy_ext_dbt_s diskette_param_table2;
102 void floppy_drive_setup();
103 void floppy_13(struct bregs *regs, u8 drive);
107 void disk_13(struct bregs *regs, u8 device);
108 void disk_13XX(struct bregs *regs, u8 device);
111 int cdrom_read_emu(u16 device, u32 lba, u32 count, void *far_buffer);
112 void cdrom_13(struct bregs *regs, u8 device);
113 void cdemu_13(struct bregs *regs);
114 void cdemu_134b(struct bregs *regs);