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-rw-r--r--include/linux/if_frad.h97
1 files changed, 97 insertions, 0 deletions
diff --git a/include/linux/if_frad.h b/include/linux/if_frad.h
new file mode 100644
index 000000000..4316aa173
--- /dev/null
+++ b/include/linux/if_frad.h
@@ -0,0 +1,97 @@
+/*
+ * DLCI/FRAD Definitions for Frame Relay Access Devices. DLCI devices are
+ * created for each DLCI associated with a FRAD. The FRAD driver
+ * is not truly a network device, but the lower level device
+ * handler. This allows other FRAD manufacturers to use the DLCI
+ * code, including its RFC1490 encapsulation alongside the current
+ * implementation for the Sangoma cards.
+ *
+ * Version: @(#)if_ifrad.h 0.15 31 Mar 96
+ *
+ * Author: Mike McLagan <mike.mclagan@linux.org>
+ *
+ * Changes:
+ * 0.15 Mike McLagan changed structure defs (packed)
+ * re-arranged flags
+ * added DLCI_RET vars
+ *
+ * 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.
+ */
+#ifndef _FRAD_H_
+#define _FRAD_H_
+
+#include <uapi/linux/if_frad.h>
+
+
+#if defined(CONFIG_DLCI) || defined(CONFIG_DLCI_MODULE)
+
+/* these are the fields of an RFC 1490 header */
+struct frhdr
+{
+ unsigned char control;
+
+ /* for IP packets, this can be the NLPID */
+ unsigned char pad;
+
+ unsigned char NLPID;
+ unsigned char OUI[3];
+ __be16 PID;
+
+#define IP_NLPID pad
+} __packed;
+
+/* see RFC 1490 for the definition of the following */
+#define FRAD_I_UI 0x03
+
+#define FRAD_P_PADDING 0x00
+#define FRAD_P_Q933 0x08
+#define FRAD_P_SNAP 0x80
+#define FRAD_P_CLNP 0x81
+#define FRAD_P_IP 0xCC
+
+struct dlci_local
+{
+ struct net_device *master;
+ struct net_device *slave;
+ struct dlci_conf config;
+ int configured;
+ struct list_head list;
+
+ /* callback function */
+ void (*receive)(struct sk_buff *skb, struct net_device *);
+};
+
+struct frad_local
+{
+ struct net_device_stats stats;
+
+ /* devices which this FRAD is slaved to */
+ struct net_device *master[CONFIG_DLCI_MAX];
+ short dlci[CONFIG_DLCI_MAX];
+
+ struct frad_conf config;
+ int configured; /* has this device been configured */
+ int initialized; /* mem_start, port, irq set ? */
+
+ /* callback functions */
+ int (*activate)(struct net_device *, struct net_device *);
+ int (*deactivate)(struct net_device *, struct net_device *);
+ int (*assoc)(struct net_device *, struct net_device *);
+ int (*deassoc)(struct net_device *, struct net_device *);
+ int (*dlci_conf)(struct net_device *, struct net_device *, int get);
+
+ /* fields that are used by the Sangoma SDLA cards */
+ struct timer_list timer;
+ int type; /* adapter type */
+ int state; /* state of the S502/8 control latch */
+ int buffer; /* current buffer for S508 firmware */
+};
+
+#endif /* CONFIG_DLCI || CONFIG_DLCI_MODULE */
+
+extern void dlci_ioctl_set(int (*hook)(unsigned int, void __user *));
+
+#endif