Even more cleanups. Also renamed hdd/ to disk/ as that makes more sense. Machines with an Internal HDC (usually IDE) can now also select an alternative one instead.

2017-10-02 02:15:35 -04:00
parent f6620a45d0
commit 63c532d940
39 changed files with 942 additions and 976 deletions
--- a/src/disk/hdd.h
+++ b/src/disk/hdd.h
@@ -0,0 +1,93 @@
+/*
+ * 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	1.0.2	2017/09/30
+ *
+ * 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
+
+
+#define HDD_NUM		30	/* total of 30 images supported */
+
+
+/* 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
+};
+
+
+/* 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_init(void);
+
+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*/