init gnumach copy

1 files changed, 149 insertions, 0 deletions

diff --git a/i386/i386at/autoconf.c b/i386/i386at/autoconf.c
new file mode 100644
index 0000000..5c69988
--- /dev/null
+++ b/i386/i386at/autoconf.c
@@ -0,0 +1,149 @@
+/*
+ * Mach Operating System
+ * Copyright (c) 1993,1992,1991,1990,1989 Carnegie Mellon University
+ * All Rights Reserved.
+ *
+ * Permission to use, copy, modify and distribute this software and its
+ * documentation is hereby granted, provided that both the copyright
+ * notice and this permission notice appear in all copies of the
+ * software, derivative works or modified versions, and any portions
+ * thereof, and that both notices appear in supporting documentation.
+ *
+ * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
+ * CONDITION.  CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR
+ * ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
+ *
+ * Carnegie Mellon requests users of this software to return to
+ *
+ *  Software Distribution Coordinator  or  Software.Distribution@CS.CMU.EDU
+ *  School of Computer Science
+ *  Carnegie Mellon University
+ *  Pittsburgh PA 15213-3890
+ *
+ * any improvements or extensions that they make and grant Carnegie Mellon
+ * the rights to redistribute these changes.
+ */
+
+#include <kern/printf.h>
+#include <mach/std_types.h>
+#include <i386at/autoconf.h>
+#include <i386/irq.h>
+#include <i386/ipl.h>
+#ifdef APIC
+# include <i386/apic.h>
+#else
+# include <i386/pic.h>
+#endif
+#include <chips/busses.h>
+
+/* initialization typecasts */
+#define	SPL_FIVE	(vm_offset_t)SPL5
+#define	SPL_SIX		(vm_offset_t)SPL6
+#define	SPL_TTY		(vm_offset_t)SPLTTY
+
+
+#if NCOM > 0
+extern	struct	bus_driver	comdriver;
+#include <i386at/com.h>
+#endif /* NCOM */
+
+#if NLPR > 0
+extern	struct	bus_driver	lprdriver;
+#include <i386at/lpr.h>
+#endif /* NLPR */
+
+struct	bus_ctlr	bus_master_init[] = {
+
+/* driver    name unit intr    address        len phys_address
+     adaptor alive flags spl    pic				 */
+
+  {0}
+};
+
+
+struct	bus_device	bus_device_init[] = {
+
+/* driver     name unit intr    address       am   phys_address
+     adaptor alive ctlr slave flags *mi       *next  sysdep sysdep */
+
+#if NCOM > 0
+  {&comdriver, "com", 0, comintr, 0x3f8, 8, 0x3f8,
+     '?',    0,   -1,    -1,    0,   0,        0,   SPL_TTY, 4},
+  {&comdriver, "com", 1, comintr, 0x2f8, 8, 0x2f8,
+     '?',    0,   -1,    -1,    0,   0,        0,   SPL_TTY, 3},
+  {&comdriver, "com", 2, comintr, 0x3e8, 8, 0x3e8,
+     '?',    0,   -1,    -1,    0,   0,        0,   SPL_TTY, 5},
+#endif /* NCOM > 0 */
+
+#ifdef MACH_LPR
+#if NLPR > 0
+  {&lprdriver, "lpr", 0, lprintr, 0x378, 3, 0x378,
+     '?',    0,   -1,    -1,    0,   0,        0,   SPL_TTY, 7},
+  {&lprdriver, "lpr", 0, lprintr, 0x278, 3, 0x278,
+     '?',    0,   -1,    -1,    0,   0,        0,   SPL_TTY, 7},
+  {&lprdriver, "lpr", 0, lprintr, 0x3bc, 3, 0x3bc,
+     '?',    0,   -1,    -1,    0,   0,        0,   SPL_TTY, 7},
+#endif /* NLPR > 0 */
+#endif /* MACH_LPR */
+
+  {0}
+};
+
+/*
+ * probeio:
+ *
+ *	Probe and subsequently attach devices out on the AT bus.
+ *
+ *
+ */
+void probeio(void)
+{
+	struct	bus_device	*device;
+	struct	bus_ctlr	*master;
+	int			i = 0;
+
+	for (master = bus_master_init; master->driver; master++)
+	{
+		if (configure_bus_master(master->name, master->address,
+				master->phys_address, i, "atbus"))
+			i++;
+	}
+
+	for (device = bus_device_init; device->driver; device++)
+	{
+		/* ignore what we (should) have found already */
+		if (device->alive || device->ctlr >= 0)
+			continue;
+		if (configure_bus_device(device->name, device->address,
+				device->phys_address, i, "atbus"))
+			i++;
+	}
+
+#if	MACH_TTD
+	/*
+	 * Initialize Remote kernel debugger.
+	 */
+	ttd_init();
+#endif	/* MACH_TTD */
+}
+
+void take_dev_irq(
+	const struct bus_device *dev)
+{
+	int pic = (int)dev->sysdep1;
+
+	if (ivect[pic] == intnull) {
+		iunit[pic] = dev->unit;
+		ivect[pic] = dev->intr;
+	} else {
+		printf("The device below will clobber IRQ %d (%p).\n", pic, ivect[pic]);
+		printf("You have two devices at the same IRQ.\n");
+		printf("This won't work.  Reconfigure your hardware and try again.\n");
+		printf("%s%d: port = %zx, spl = %zd, pic = %d.\n",
+		        dev->name, dev->unit, dev->address,
+			dev->sysdep, dev->sysdep1);
+		while (1);
+	}
+
+	unmask_irq(pic);
+}