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/*********************************************************************
*
* Filename: irda.h
* Version: 1.0
* Description: IrDA common include file for kernel internal use
* Status: Stable
* Author: Dag Brattli <dagb@cs.uit.no>
* Created at: Tue Dec 9 21:13:12 1997
* Modified at: Fri Jan 28 13:16:32 2000
* Modified by: Dag Brattli <dagb@cs.uit.no>
*
* Copyright (c) 1998-2000 Dag Brattli, All Rights Reserved.
* Copyright (c) 2000-2001 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.
*
* Neither Dag Brattli nor University of Tromsų admit liability nor
* provide warranty for any of this software. This material is
* provided "AS-IS" and at no charge.
*
********************************************************************/
#ifndef NET_IRDA_H
#define NET_IRDA_H
#include <linux/config.h>
#include <linux/skbuff.h>
#include <linux/kernel.h>
#include <linux/if.h>
#include <linux/irda.h>
typedef __u32 magic_t;
#include <net/irda/qos.h>
#include <net/irda/irqueue.h>
#ifndef TRUE
#define TRUE 1
#endif
#ifndef FALSE
#define FALSE 0
#endif
/* Hack to do small backoff when setting media busy in IrLAP */
#ifndef SMALL
#define SMALL 5
#endif
#ifndef IRDA_MIN /* Lets not mix this MIN with other header files */
#define IRDA_MIN(a, b) (((a) < (b)) ? (a) : (b))
#endif
#ifndef ALIGN
# define ALIGN __attribute__((aligned))
#endif
#ifndef PACK
# define PACK __attribute__((packed))
#endif
#ifdef CONFIG_IRDA_DEBUG
extern __u32 irda_debug;
/* use 0 for production, 1 for verification, >2 for debug */
#define IRDA_DEBUG_LEVEL 0
#define IRDA_DEBUG(n, args...) (irda_debug >= (n)) ? (printk(KERN_DEBUG args)) : 0
#define ASSERT(expr, func) \
if(!(expr)) { \
printk( "Assertion failed! %s:%s:%d %s\n", \
__FILE__,__FUNCTION__,__LINE__,(#expr)); \
func }
#else
#define IRDA_DEBUG(n, args...)
#define ASSERT(expr, func) \
if(!(expr)) do { \
func } while (0)
#endif /* CONFIG_IRDA_DEBUG */
#define WARNING(args...) printk(KERN_WARNING args)
#define MESSAGE(args...) printk(KERN_INFO args)
#define ERROR(args...) printk(KERN_ERR args)
#define MSECS_TO_JIFFIES(ms) (((ms)*HZ+999)/1000)
/*
* Magic numbers used by Linux-IrDA. Random numbers which must be unique to
* give the best protection
*/
#define IRTTY_MAGIC 0x2357
#define LAP_MAGIC 0x1357
#define LMP_MAGIC 0x4321
#define LMP_LSAP_MAGIC 0x69333
#define LMP_LAP_MAGIC 0x3432
#define IRDA_DEVICE_MAGIC 0x63454
#define IAS_MAGIC 0x007
#define TTP_MAGIC 0x241169
#define TTP_TSAP_MAGIC 0x4345
#define IROBEX_MAGIC 0x341324
#define HB_MAGIC 0x64534
#define IRLAN_MAGIC 0x754
#define IAS_OBJECT_MAGIC 0x34234
#define IAS_ATTRIB_MAGIC 0x45232
#define IRDA_TASK_MAGIC 0x38423
#define IAS_DEVICE_ID 0x0000 /* Defined by IrDA, IrLMP section 4.1 (page 68) */
#define IAS_PNP_ID 0xd342
#define IAS_OBEX_ID 0x34323
#define IAS_IRLAN_ID 0x34234
#define IAS_IRCOMM_ID 0x2343
#define IAS_IRLPT_ID 0x9876
typedef enum { FLOW_STOP, FLOW_START } LOCAL_FLOW;
/* A few forward declarations (to make compiler happy) */
struct tsap_cb; /* in <net/irda/irttp.h> */
struct lsap_cb; /* in <net/irda/irlmp.h> */
struct iriap_cb; /* in <net/irda/iriap.h> */
struct ias_value; /* in <net/irda/irias_object.h> */
struct discovery_t; /* in <net/irda/discovery.h> */
/* IrDA Socket */
struct irda_sock {
__u32 saddr; /* my local address */
__u32 daddr; /* peer address */
struct lsap_cb *lsap; /* LSAP used by Ultra */
__u8 pid; /* Protocol IP (PID) used by Ultra */
struct tsap_cb *tsap; /* TSAP used by this connection */
__u8 dtsap_sel; /* remote TSAP address */
__u8 stsap_sel; /* local TSAP address */
__u32 max_sdu_size_rx;
__u32 max_sdu_size_tx;
__u32 max_data_size;
__u8 max_header_size;
struct qos_info qos_tx;
__u16 mask; /* Hint bits mask */
__u16 hints; /* Hint bits */
__u32 ckey; /* IrLMP client handle */
__u32 skey; /* IrLMP service handle */
struct ias_object *ias_obj; /* Our service name + lsap in IAS */
struct iriap_cb *iriap; /* Used to query remote IAS */
struct ias_value *ias_result; /* Result of remote IAS query */
hashbin_t *cachelog; /* Result of discovery query */
struct discovery_t *cachediscovery; /* Result of selective discovery query */
int nslots; /* Number of slots to use for discovery */
int errno; /* status of the IAS query */
struct sock *sk;
wait_queue_head_t query_wait; /* Wait for the answer to a query */
struct timer_list watchdog; /* Timeout for discovery */
LOCAL_FLOW tx_flow;
LOCAL_FLOW rx_flow;
};
/*
* 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].
*/
typedef union {
__u16 word;
__u8 byte[2];
} __u16_host_order;
/*
* Per-packet information we need to hide inside sk_buff
* (must not exceed 48 bytes, check with struct sk_buff)
*/
struct irda_skb_cb {
magic_t magic; /* Be sure that we can trust the information */
__u32 next_speed; /* The Speed to be set *after* this frame */
__u16 mtt; /* Minimum turn around time */
__u16 xbofs; /* Number of xbofs required, used by SIR mode */
__u16 next_xbofs; /* Number of xbofs required *after* this frame */
void *context; /* May be used by drivers */
void (*destructor)(struct sk_buff *skb); /* Used for flow control */
__u16 xbofs_delay; /* Number of xbofs used for generating the mtt */
__u8 line; /* Used by IrCOMM in IrLPT mode */
};
/* Misc status information */
typedef enum {
STATUS_OK,
STATUS_ABORTED,
STATUS_NO_ACTIVITY,
STATUS_NOISY,
STATUS_REMOTE,
} LINK_STATUS;
typedef enum {
LOCK_NO_CHANGE,
LOCK_LOCKED,
LOCK_UNLOCKED,
} LOCK_STATUS;
typedef enum { /* FIXME check the two first reason codes */
LAP_DISC_INDICATION=1, /* Received a disconnect request from peer */
LAP_NO_RESPONSE, /* To many retransmits without response */
LAP_RESET_INDICATION, /* To many retransmits, or invalid nr/ns */
LAP_FOUND_NONE, /* No devices were discovered */
LAP_MEDIA_BUSY,
LAP_PRIMARY_CONFLICT,
} LAP_REASON;
/*
* IrLMP disconnect reasons. The order is very important, since they
* correspond to disconnect reasons sent in IrLMP disconnect frames, so
* please do not touch :-)
*/
typedef enum {
LM_USER_REQUEST = 1, /* User request */
LM_LAP_DISCONNECT, /* Unexpected IrLAP disconnect */
LM_CONNECT_FAILURE, /* Failed to establish IrLAP connection */
LM_LAP_RESET, /* IrLAP reset */
LM_INIT_DISCONNECT, /* Link Management initiated disconnect */
LM_LSAP_NOTCONN, /* Data delivered on unconnected LSAP */
LM_NON_RESP_CLIENT, /* Non responsive LM-MUX client */
LM_NO_AVAIL_CLIENT, /* No available LM-MUX client */
LM_CONN_HALF_OPEN, /* Connection is half open */
LM_BAD_SOURCE_ADDR, /* Illegal source address (i.e 0x00) */
} LM_REASON;
#define LM_UNKNOWN 0xff /* Unspecified disconnect reason */
/*
* Notify structure used between transport and link management layers
*/
typedef struct {
int (*data_indication)(void *priv, void *sap, struct sk_buff *skb);
int (*udata_indication)(void *priv, void *sap, struct sk_buff *skb);
void (*connect_confirm)(void *instance, void *sap,
struct qos_info *qos, __u32 max_sdu_size,
__u8 max_header_size, struct sk_buff *skb);
void (*connect_indication)(void *instance, void *sap,
struct qos_info *qos, __u32 max_sdu_size,
__u8 max_header_size, struct sk_buff *skb);
void (*disconnect_indication)(void *instance, void *sap,
LM_REASON reason, struct sk_buff *);
void (*flow_indication)(void *instance, void *sap, LOCAL_FLOW flow);
void (*status_indication)(void *instance,
LINK_STATUS link, LOCK_STATUS lock);
void *instance; /* Layer instance pointer */
char name[16]; /* Name of layer */
} notify_t;
#define NOTIFY_MAX_NAME 16
#endif /* NET_IRDA_H */
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