Import of all sources.

2018-02-20 21:44:51 -05:00
parent 8485cbfe1a
commit 7f4ddcd70b
685 changed files with 301786 additions and 0 deletions
--- a/src/disk/hdd.h
+++ b/src/disk/hdd.h
@@ -0,0 +1,115 @@
+/*
+ * VARCem	Virtual Archaelogical Computer EMulator.
+ *		An emulator of (mostly) x86-based PC systems and devices,
+ *		using the ISA,EISA,VLB,MCA  and PCI system buses, roughly
+ *		spanning the era between 1981 and 1995.
+ *
+ *		This file is part of the VARCem Project.
+ *
+ *		Definitions for the hard disk image handler.
+ *
+ * Version:	@(#)hdd.h	1.0.1	2018/02/14
+ *
+ * Authors:	Fred N. van Kempen, <decwiz@yahoo.com>
+ *		Miran Grca, <mgrca8@gmail.com>
+ *
+ *		Copyright 2017,2018 Fred N. van Kempen.
+ *		Copyright 2016-2018 Miran Grca.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free  Software  Foundation; either  version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is  distributed in the hope that it will be useful, but
+ * WITHOUT   ANY  WARRANTY;  without  even   the  implied  warranty  of
+ * MERCHANTABILITY  or FITNESS  FOR A PARTICULAR  PURPOSE. See  the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the:
+ *
+ *   Free Software Foundation, Inc.
+ *   59 Temple Place - Suite 330
+ *   Boston, MA 02111-1307
+ *   USA.
+ */
+#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_string_to_bus(char *str, int cdrom);
+extern char	*hdd_bus_to_string(int bus, int cdrom);
+extern int	hdd_is_valid(int c);
+
+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*/