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.

src/disk/hdc.h

@@ -0,0 +1,57 @@
+/*
+ * 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 common disk controller handler.
+ *
+ * Version:	@(#)hdc.h	1.0.3	2017/10/01
+ *
+ * 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_HDC_H
+# define EMU_HDC_H
+
+
+#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... */
+
+extern char	hdc_name[16];
+extern int	hdc_current;
+
+
+extern device_t	mfm_xt_xebec_device;		/* mfm_xt_xebec */
+extern device_t	mfm_xt_dtc5150x_device;		/* mfm_xt_dtc */
+extern device_t	mfm_at_wd1003_device;		/* mfm_at_wd1003 */
+
+extern device_t	esdi_at_wd1007vse1_device;	/* esdi_at */
+extern device_t	esdi_ps2_device;		/* esdi_mca */
+
+extern device_t	xtide_device;			/* xtide_xt */
+extern device_t	xtide_at_device;		/* xtide_at */
+extern device_t	xtide_ps2_device;		/* xtide_ps2 */
+extern device_t	xtide_at_ps2_device;		/* xtide_at_ps2 */
+
+
+extern void	hdc_init(char *name);
+extern void	hdc_reset(void);
+
+extern char	*hdc_get_name(int hdc);
+extern char	*hdc_get_internal_name(int hdc);
+extern int	hdc_get_flags(int hdc);
+extern int	hdc_available(int hdc);
+extern int	hdc_current_is_mfm(void);
+
+
+#endif	/*EMU_HDC_H*/