Initial source

1 files changed, 264 insertions, 0 deletions

diff --git a/i386/i386at/i82586.h b/i386/i386at/i82586.h
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+/* 
+ * Mach Operating System
+ * Copyright (c) 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.
+ */
+/*
+  Copyright 1988, 1989 by Olivetti Advanced Technology Center, Inc.,
+Cupertino, California.
+
+		All Rights Reserved
+
+  Permission to use, copy, modify, and distribute this software and
+its documentation for any purpose and without fee is hereby
+granted, provided that the above copyright notice appears in all
+copies and that both the copyright notice and this permission notice
+appear in supporting documentation, and that the name of Olivetti
+not be used in advertising or publicity pertaining to distribution
+of the software without specific, written prior permission.
+
+  OLIVETTI DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE
+INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS,
+IN NO EVENT SHALL OLIVETTI BE LIABLE FOR ANY SPECIAL, INDIRECT, OR
+CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
+LOSS OF USE, DATA OR PROFITS, WHETHER IN ACTION OF CONTRACT,
+NEGLIGENCE, OR OTHER TORTIOUS ACTION, ARISING OUR OF OR IN CONNECTION
+WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+*/
+
+/*
+ * Defines for managing the status word of the 82586 cpu.  For details see
+ * the Intel LAN Component User's Manual starting at p. 2-14.
+ *
+ */
+
+#define SCB_SW_INT	0xf000
+#define SCB_SW_CX	0x8000		/* CU finished w/ int. bit set */
+#define SCB_SW_FR	0x4000		/* RU finished receiving a frame */
+#define SCB_SW_CNA	0x2000		/* CU left active state */
+#define SCB_SW_RNR	0x1000		/* RU left ready state */
+
+/* 
+ * Defines for managing the Command Unit Status portion of the 82586
+ * System Control Block.
+ *
+ */
+
+#define SCB_CUS_IDLE	0x0000
+#define SCB_CUS_SUSPND	0x0100
+#define SCB_CUS_ACTV	0x0200
+
+/* 
+ * Defines for managing the Receive Unit Status portion of the System
+ * Control Block.
+ *
+ */
+
+#define SCB_RUS_IDLE	0x0000
+#define SCB_RUS_SUSPND	0x0010
+#define SCB_RUS_NORESRC 0x0020
+#define SCB_RUS_READY	0x0040
+
+/*
+ * Defines that manage portions of the Command Word in the System Control
+ * Block of the 82586.  Below are the Interrupt Acknowledge Bits and their
+ * appropriate masks.
+ *
+ */
+
+#define SCB_ACK_CX	0x8000
+#define SCB_ACK_FR	0x4000
+#define SCB_ACK_CNA	0x2000
+#define SCB_ACK_RNR	0x1000
+
+/* 
+ * Defines for managing the Command Unit Control word, and the Receive
+ * Unit Control word.  The software RESET bit is also defined.
+ *
+ */
+
+#define SCB_CU_STRT	0x0100
+#define SCB_CU_RSUM	0x0200
+#define SCB_CU_SUSPND	0x0300
+#define SCB_CU_ABRT	0x0400
+
+#define SCB_RESET	0x0080
+
+#define SCB_RU_STRT	0x0010
+#define SCB_RU_RSUM	0x0020
+#define SCB_RU_SUSPND	0x0030
+#define SCB_RU_ABRT	0x0040
+
+
+/*
+ * The following define Action Commands for the 82586 chip.
+ *
+ */
+
+#define	AC_NOP		0x00
+#define AC_IASETUP	0x01
+#define AC_CONFIGURE	0x02
+#define AC_MCSETUP	0x03
+#define AC_TRANSMIT	0x04
+#define AC_TDR		0x05
+#define AC_DUMP		0x06
+#define AC_DIAGNOSE	0x07
+
+
+/*
+ * Defines for General Format for Action Commands, both Status Words, and
+ * Command Words.
+ *
+ */
+
+#define AC_SW_C		0x8000
+#define AC_SW_B		0x4000
+#define AC_SW_OK	0x2000
+#define AC_SW_A		0x1000
+#define TC_CARRIER	0x0400
+#define TC_CLS		0x0200
+#define TC_DMA		0x0100
+#define TC_DEFER	0x0080
+#define TC_SQE		0x0040
+#define TC_COLLISION	0x0020
+#define	AC_CW_EL	0x8000
+#define AC_CW_S		0x4000
+#define AC_CW_I		0x2000
+
+/*
+ * Specific defines for the transmit action command.
+ *
+ */
+
+#define TBD_SW_EOF	0x8000
+#define TBD_SW_COUNT	0x3fff
+
+/*
+ * Specific defines for the receive frame actions.
+ *
+ */
+
+#define RBD_SW_EOF	0x8000
+#define RBD_SW_COUNT	0x3fff
+
+#define RFD_DONE	0x8000
+#define RFD_BUSY	0x4000
+#define RFD_OK		0x2000
+#define RFD_CRC		0x0800
+#define RFD_ALN		0x0400
+#define RFD_RSC		0x0200
+#define RFD_DMA		0x0100
+#define RFD_SHORT	0x0080
+#define RFD_EOF		0x0040
+#define RFD_EL		0x8000
+#define RFD_SUSP	0x4000
+/*
+ * 82586 chip specific structure definitions.  For details, see the Intel
+ * LAN Components manual.
+ *
+ */
+
+
+typedef	struct	{
+	u_short	scp_sysbus;
+	u_short	scp_unused[2];
+	u_short	scp_iscp;
+	u_short	scp_iscp_base;
+} scp_t;
+
+
+typedef	struct	{
+	u_short	iscp_busy;
+	u_short	iscp_scb_offset;
+	u_short	iscp_scb;
+	u_short	iscp_scb_base;
+} iscp_t;
+
+
+typedef struct	{
+	u_short	scb_status;
+	u_short	scb_command;
+	u_short	scb_cbl_offset;
+	u_short	scb_rfa_offset;
+	u_short	scb_crcerrs;
+	u_short	scb_alnerrs;
+	u_short	scb_rscerrs;
+	u_short	scb_ovrnerrs;
+} scb_t;
+
+
+typedef	struct	{
+	u_short	tbd_offset;
+	u_char	dest_addr[6];
+	u_short	length;
+} transmit_t;
+
+
+typedef	struct	{
+	u_short	fifolim_bytecnt;
+	u_short	addrlen_mode;
+	u_short	linprio_interframe;
+	u_short	slot_time;
+	u_short	hardware;
+	u_short	min_frame_len;
+} configure_t;
+
+
+typedef	struct	{
+	u_short	ac_status;
+	u_short	ac_command;
+	u_short	ac_link_offset;
+	union	{
+		transmit_t	transmit;
+		configure_t	configure;
+		u_char		iasetup[6];
+	} cmd;
+} ac_t;
+	
+
+typedef	struct	{
+	u_short	act_count;
+	u_short	next_tbd_offset;
+	u_short	buffer_addr;
+	u_short	buffer_base;
+} tbd_t;
+
+
+typedef	struct	{
+	u_short	status;
+	u_short	command;
+	u_short	link_offset;
+	u_short	rbd_offset;
+	u_char	destination[6];
+	u_char	source[6];
+	u_short	length;
+} fd_t;
+
+
+typedef	struct	{
+	u_short	status;
+	u_short	next_rbd_offset;
+	u_short	buffer_addr;
+	u_short	buffer_base;
+	u_short	size;
+} rbd_t;