Preliminary support for the floppy drive on Ultrasparcs. Only tested on

SBus machines so far, although EBus attachment glue is provided but not enabled
by default.

Also, fdformat(8) does not work correctly yet, although reading and writing
is safe; this will hopefully be fixed in the near future.

ok deraadt@

1 files changed, 93 insertions, 0 deletions

diff --git a/sys/arch/sparc64/dev/fdreg.h b/sys/arch/sparc64/dev/fdreg.h
new file mode 100644
index 00000000000..228f49f677d
--- /dev/null
+++ b/sys/arch/sparc64/dev/fdreg.h
@@ -0,0 +1,93 @@
+/*	$OpenBSD: fdreg.h,v 1.1 2005/03/09 18:41:49 miod Exp $	*/
+/*	$NetBSD: fdreg.h,v 1.9 2003/08/07 16:29:35 agc Exp $	*/
+
+/*-
+ * Copyright (c) 1991 The Regents of the University of California.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ *	@(#)fdreg.h	7.1 (Berkeley) 5/9/91
+ */
+
+/*
+ * AT floppy controller registers and bitfields
+ */
+
+/* uses NEC765 controller */
+#include <dev/ic/nec765reg.h>
+
+/*
+ * Register offsets for the 82077 controller.
+ */
+#define FDREG77_STATUSA	0
+#define FDREG77_STATUSB	1
+#define FDREG77_DOR	2		/* Digital Output Register (R/W) */
+#define FDREG77_TDR	3		/* Tape Control Register (R/W) */
+#define FDREG77_MSR	4		/* Main Status Register (R) */
+#define FDREG77_DRS	4		/* Data Rate Select Register (W) */
+#define FDREG77_FIFO	5		/* Data (FIFO) register (R/W) */
+#define FDREG77_DIR	7		/* Digital Input Register (R) */
+#define FDREG77_CCR	7		/* Configuration Control (W) */
+
+/* Data Select Register bits */
+#define DRS_RESET	0x80
+#define DRS_POWER	0x40
+#define DRS_PLL		0x20
+#define	FDC_500KBPS	0x00		/*   500KBPS MFM drive transfer rate */
+#define	FDC_300KBPS	0x01		/*   300KBPS MFM drive transfer rate */
+#define	FDC_250KBPS	0x02		/*   250KBPS MFM drive transfer rate */
+#define	FDC_125KBPS	0x03		/*   125KBPS  FM drive transfer rate */
+
+/* Digital Output Register bits (modified on suns) */
+#define	FDO_DS		0x01		/*  floppy device select (neg) */
+#define	FDO_FRST	0x04		/*  floppy controller reset (neg) */
+#define	FDO_FDMAEN	0x08		/*  enable floppy DMA and Interrupt */
+#define	FDO_MOEN(n)	((1 << n) << 4)	/* motor enable */
+#define FDO_DEN		0x40		/* Density select */
+#define FDO_EJ		0x80		/* Eject disk */
+
+/* Digital Input Register bits */
+#define	FDI_DCHG	0x80		/*   diskette has been changed */
+
+/* XXX - find a place for these... */
+#define NE7CMD_CFG		0x13
+#define CFG_EIS			0x40
+#define CFG_EFIFO		0x20
+#define CFG_POLL		0x10
+#define CFG_THRHLD_MASK		0x0f
+
+#define NE7CMD_LOCK		0x14
+#define CFG_LOCK		0x80
+
+#define NE7CMD_MOTOR		0x0b
+#define MOTOR_ON		0x80
+
+#define NE7CMD_DUMPREG		0x0e
+#define NE7CMD_VERSION		0x10
+
+#define ST1_OVERRUN		0x10
+
+#define NE7_SPECIFY_NODMA	0x01