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path: root/drivers/char/rio/pkt.h
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Diffstat (limited to 'drivers/char/rio/pkt.h')
-rw-r--r--drivers/char/rio/pkt.h120
1 files changed, 120 insertions, 0 deletions
diff --git a/drivers/char/rio/pkt.h b/drivers/char/rio/pkt.h
new file mode 100644
index 00000000000..66bb2ff0f69
--- /dev/null
+++ b/drivers/char/rio/pkt.h
@@ -0,0 +1,120 @@
+/****************************************************************************
+ ******* *******
+ ******* P A C K E T H E A D E R F I L E
+ ******* *******
+ ****************************************************************************
+
+ Author : Ian Nandhra / Jeremy Rolls
+ Date :
+
+ *
+ * (C) 1990 - 2000 Specialix International Ltd., Byfleet, Surrey, UK.
+ *
+ * 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., 675 Mass Ave, Cambridge, MA 02139, USA.
+
+ Version : 0.01
+
+
+ Mods
+ ----------------------------------------------------------------------------
+ Date By Description
+ ----------------------------------------------------------------------------
+
+ ***************************************************************************/
+
+#ifndef _pkt_h
+#define _pkt_h 1
+
+
+#ifdef SCCS_LABELS
+#ifndef lint
+/* static char *_rio_pkt_h_sccs = "@(#)pkt.h 1.8"; */
+#endif
+#endif
+
+#define MAX_TTL 0xf
+#define PKT_CMD_BIT ((ushort) 0x080)
+#define PKT_CMD_DATA ((ushort) 0x080)
+
+#define PKT_ACK ((ushort) 0x040)
+
+#define PKT_TGL ((ushort) 0x020)
+
+#define PKT_LEN_MASK ((ushort) 0x07f)
+
+#define DATA_WNDW ((ushort) 0x10)
+#define PKT_TTL_MASK ((ushort) 0x0f)
+
+#define PKT_MAX_DATA_LEN 72
+
+#define PKT_LENGTH sizeof(struct PKT)
+#define SYNC_PKT_LENGTH (PKT_LENGTH + 4)
+
+#define CONTROL_PKT_LEN_MASK PKT_LEN_MASK
+#define CONTROL_PKT_CMD_BIT PKT_CMD_BIT
+#define CONTROL_PKT_ACK (PKT_ACK << 8)
+#define CONTROL_PKT_TGL (PKT_TGL << 8)
+#define CONTROL_PKT_TTL_MASK (PKT_TTL_MASK << 8)
+#define CONTROL_DATA_WNDW (DATA_WNDW << 8)
+
+struct PKT {
+#ifdef INKERNEL
+ BYTE dest_unit ; /* Destination Unit Id */
+ BYTE dest_port ; /* Destination POrt */
+ BYTE src_unit ; /* Source Unit Id */
+ BYTE src_port ; /* Source POrt */
+#else
+ union
+ {
+ ushort destination; /* Complete destination */
+ struct
+ {
+ unsigned char unit; /* Destination unit */
+ unsigned char port; /* Destination port */
+ } s1;
+ } u1;
+ union
+ {
+ ushort source; /* Complete source */
+ struct
+ {
+ unsigned char unit; /* Source unit */
+ unsigned char port; /* Source port */
+ } s2;
+ } u2;
+#endif
+#ifdef INKERNEL
+ BYTE len ;
+ BYTE control;
+#else
+ union
+ {
+ ushort control;
+ struct
+ {
+ unsigned char len;
+ unsigned char control;
+ } s3;
+ } u3;
+#endif
+ BYTE data[PKT_MAX_DATA_LEN] ;
+ /* Actual data :-) */
+ WORD csum ; /* C-SUM */
+ } ;
+#endif
+
+/*********** end of file ***********/
+
+