1 files changed, 100 insertions, 0 deletions

diff --git a/include/net/irda/discovery.h b/include/net/irda/discovery.h
new file mode 100644
index 000000000000..eb0f9de47294
--- /dev/null
+++ b/include/net/irda/discovery.h
@@ -0,0 +1,100 @@
+/*********************************************************************
+ *                
+ * Filename:      discovery.h
+ * Version:       
+ * Description:   
+ * Status:        Experimental.
+ * Author:        Dag Brattli <dagb@cs.uit.no>
+ * Created at:    Tue Apr  6 16:53:53 1999
+ * Modified at:   Tue Oct  5 10:05:10 1999
+ * Modified by:   Dag Brattli <dagb@cs.uit.no>
+ * 
+ *     Copyright (c) 1999 Dag Brattli, All Rights Reserved.
+ *     Copyright (c) 2000-2002 Jean Tourrilhes <jt@hpl.hp.com>
+ *     
+ *     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., 59 Temple Place, Suite 330, Boston, 
+ *     MA 02111-1307 USA
+ *     
+ ********************************************************************/
+
+#ifndef DISCOVERY_H
+#define DISCOVERY_H
+
+#include <asm/param.h>
+
+#include <net/irda/irda.h>
+#include <net/irda/irqueue.h>           /* irda_queue_t */
+#include <net/irda/irlap_event.h>       /* LAP_REASON */
+
+#define DISCOVERY_EXPIRE_TIMEOUT (2*sysctl_discovery_timeout*HZ)
+#define DISCOVERY_DEFAULT_SLOTS  0
+
+/*
+ *  This type is used by the protocols that transmit 16 bits words in 
+ *  little endian format. A little endian machine stores MSB of word in
+ *  byte[1] and LSB in byte[0]. A big endian machine stores MSB in byte[0] 
+ *  and LSB in byte[1].
+ *
+ * This structure is used in the code for things that are endian neutral
+ * but that fit in a word so that we can manipulate them efficiently.
+ * By endian neutral, I mean things that are really an array of bytes,
+ * and always used as such, for example the hint bits. Jean II
+ */
+typedef union {
+        __u16 word;
+        __u8  byte[2];
+} __u16_host_order;
+
+/* Same purpose, different application */
+#define u16ho(array) (* ((__u16 *) array))
+
+/* Types of discovery */
+typedef enum {
+        DISCOVERY_LOG,          /* What's in our discovery log */
+        DISCOVERY_ACTIVE,       /* Doing our own discovery on the medium */
+        DISCOVERY_PASSIVE,      /* Peer doing discovery on the medium */
+        EXPIRY_TIMEOUT,         /* Entry expired due to timeout */
+} DISCOVERY_MODE;
+
+#define NICKNAME_MAX_LEN 21
+
+/* Basic discovery information about a peer */
+typedef struct irda_device_info         discinfo_t;     /* linux/irda.h */
+
+/*
+ * The DISCOVERY structure is used for both discovery requests and responses
+ */
+typedef struct discovery_t {
+        irda_queue_t    q;              /* Must be first! */
+
+        discinfo_t      data;           /* Basic discovery information */
+        int             name_len;       /* Lenght of nickname */
+
+        LAP_REASON      condition;      /* More info about the discovery */
+        int             gen_addr_bit;   /* Need to generate a new device
+                                         * address? */
+        int             nslots;         /* Number of slots to use when
+                                         * discovering */
+        unsigned long   timestamp;      /* Last time discovered */
+        unsigned long   firststamp;     /* First time discovered */
+} discovery_t;
+
+void irlmp_add_discovery(hashbin_t *cachelog, discovery_t *discovery);
+void irlmp_add_discovery_log(hashbin_t *cachelog, hashbin_t *log);
+void irlmp_expire_discoveries(hashbin_t *log, __u32 saddr, int force);
+struct irda_device_info *irlmp_copy_discoveries(hashbin_t *log, int *pn,
+                                                __u16 mask, int old_entries);
+
+#endif