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Separation of HDD (disks) and HDC (disk controllers) with major cleanup. IDE remains same until Kotori finishes that part.

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waltje
2017-09-30 16:56:38 -04:00
parent c62e0b923c
commit 9d9f5fdd58
44 changed files with 3098 additions and 2843 deletions
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95
src/hdd/hdd.h
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@@ -1,16 +1,97 @@
/*
* 86Box A hypervisor and IBM PC system emulator that specializes in
* running old operating systems and software designed for IBM
* PC systems and compatibles from 1981 through fairly recent
* system designs based on the PCI bus.
*
* This file is part of the 86Box distribution.
*
* Definitions for the hard disk image handler.
*
* Version: @(#)hdd.h 1.0.1 2017/09/29
*
* Authors: Miran Grca, <mgrca8@gmail.com>
* Fred N. van Kempen, <decwiz@yahoo.com>
* Copyright 2016,2017 Miran Grca.
* Copyright 2017 Fred N. van Kempen.
*/
#ifndef EMU_HDD_H
# define EMU_HDD_H
extern char hdd_controller_name[16];
#define HDD_NUM 30 /* total of 30 images supported */
#define MFM_NUM 2 /* 2 drives per controller supported */
#define ESDI_NUM 2 /* 2 drives per controller supported */
#define XTIDE_NUM 2 /* 2 drives per controller supported */
#define IDE_NUM 8
#define SCSI_NUM 16 /* theoretically the controller can have at
* least 7 devices, with each device being
* able to support 8 units, but hey... */
/* Hard Disk bus types. */
enum {
HDD_BUS_DISABLED = 0,
HDD_BUS_MFM,
HDD_BUS_XTIDE,
HDD_BUS_ESDI,
HDD_BUS_IDE_PIO_ONLY,
HDD_BUS_IDE_PIO_AND_DMA,
HDD_BUS_SCSI,
HDD_BUS_SCSI_REMOVABLE,
HDD_BUS_USB
};
extern char *hdd_controller_get_name(int hdd);
extern char *hdd_controller_get_internal_name(int hdd);
extern int hdd_controller_get_flags(int hdd);
extern int hdd_controller_available(int hdd);
extern int hdd_controller_current_is_mfm(void);
extern void hdd_controller_init(char *internal_name);
/* Define the virtual Hard Disk. */
typedef struct {
int8_t is_hdi; /* image type (should rename) */
int8_t wp; /* disk has been mounted READ-ONLY */
uint8_t bus;
uint8_t mfm_channel; /* should rename and/or unionize */
uint8_t esdi_channel;
uint8_t xtide_channel;
uint8_t ide_channel;
uint8_t scsi_id;
uint8_t scsi_lun;
uint32_t base;
uint64_t spt,
hpc, /* physical geometry parameters */
tracks;
uint64_t at_spt, /* [Translation] parameters */
at_hpc;
FILE *f; /* current file handle to image */
wchar_t fn[260]; /* name of current image file */
wchar_t prev_fn[260]; /* name of previous image file */
} hard_disk_t;
extern hard_disk_t hdd[HDD_NUM];
extern uint64_t hdd_table[128][3];
extern int hdd_image_load(int id);
extern void hdd_image_seek(uint8_t id, uint32_t sector);
extern void hdd_image_read(uint8_t id, uint32_t sector, uint32_t count, uint8_t *buffer);
extern int hdd_image_read_ex(uint8_t id, uint32_t sector, uint32_t count, uint8_t *buffer);
extern void hdd_image_write(uint8_t id, uint32_t sector, uint32_t count, uint8_t *buffer);
extern int hdd_image_write_ex(uint8_t id, uint32_t sector, uint32_t count, uint8_t *buffer);
extern void hdd_image_zero(uint8_t id, uint32_t sector, uint32_t count);
extern int hdd_image_zero_ex(uint8_t id, uint32_t sector, uint32_t count);
extern uint32_t hdd_image_get_last_sector(uint8_t id);
extern uint8_t hdd_image_get_type(uint8_t id);
extern void hdd_image_specify(uint8_t id, uint64_t hpc, uint64_t spt);
extern void hdd_image_unload(uint8_t id, int fn_preserve);
extern void hdd_image_close(uint8_t id);
extern int image_is_hdi(const wchar_t *s);
extern int image_is_hdx(const wchar_t *s, int check_signature);
#endif /*EMU_HDD_H*/