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/*****************************************************************************
* wanrouter.h   Definitions for the WAN Multiprotocol Router Module.
*               This module provides API and common services for WAN Link
*               Drivers and is completely hardware-independent.
*
* Author:       Nenad Corbic <ncorbic@sangoma.com>
*               Gideon Hack    
* Additions:    Arnaldo Melo
*
* Copyright:    (c) 1995-2000 Sangoma Technologies Inc.
*
*               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.
* ============================================================================
* Jul 21, 2000  Nenad Corbic    Added WAN_FT1_READY State
* Feb 24, 2000  Nenad Corbic    Added support for socket based x25api
* Jan 28, 2000  Nenad Corbic    Added support for the ASYNC protocol.
* Oct 04, 1999  Nenad Corbic    Updated for 2.1.0 release
* Jun 02, 1999  Gideon Hack     Added support for the S514 adapter.
* May 23, 1999  Arnaldo Melo    Added local_addr to wanif_conf_t
*                               WAN_DISCONNECTING state added
* Jul 20, 1998  David Fong      Added Inverse ARP options to 'wanif_conf_t'
* Jun 12, 1998  David Fong      Added Cisco HDLC support.
* Dec 16, 1997  Jaspreet Singh  Moved 'enable_IPX' and 'network_number' to
*                               'wanif_conf_t'
* Dec 05, 1997  Jaspreet Singh  Added 'pap', 'chap' to 'wanif_conf_t'
*                               Added 'authenticator' to 'wan_ppp_conf_t'
* Nov 06, 1997  Jaspreet Singh  Changed Router Driver version to 1.1 from 1.0
* Oct 20, 1997  Jaspreet Singh  Added 'cir','bc','be' and 'mc' to 'wanif_conf_t'
*                               Added 'enable_IPX' and 'network_number' to
*                               'wan_device_t'.  Also added defines for
*                               UDP PACKET TYPE, Interrupt test, critical values
*                               for RACE conditions.
* Oct 05, 1997  Jaspreet Singh  Added 'dlci_num' and 'dlci[100]' to
*                               'wan_fr_conf_t' to configure a list of dlci(s)
*                               for a NODE
* Jul 07, 1997  Jaspreet Singh  Added 'ttl' to 'wandev_conf_t' & 'wan_device_t'
* May 29, 1997  Jaspreet Singh  Added 'tx_int_enabled' to 'wan_device_t'
* May 21, 1997  Jaspreet Singh  Added 'udp_port' to 'wan_device_t'
* Apr 25, 1997  Farhan Thawar   Added 'udp_port' to 'wandev_conf_t'
* Jan 16, 1997  Gene Kozin      router_devlist made public
* Jan 02, 1997  Gene Kozin      Initial version (based on wanpipe.h).
*****************************************************************************/


#include <linux/spinlock.h>       /* Support for SMP Locking */

#ifndef _ROUTER_H
#define _ROUTER_H

#define ROUTER_NAME     "wanrouter"     /* in case we ever change it */
#define ROUTER_VERSION  1               /* version number */
#define ROUTER_RELEASE  1               /* release (minor version) number */
#define ROUTER_IOCTL    'W'             /* for IOCTL calls */
#define ROUTER_MAGIC    0x524D4157L     /* signature: 'WANR' reversed */

/* IOCTL codes for /proc/router/<device> entries (up to 255) */
enum router_ioctls
{
        ROUTER_SETUP    = ROUTER_IOCTL<<8,      /* configure device */
        ROUTER_DOWN,                            /* shut down device */
        ROUTER_STAT,                            /* get device status */
        ROUTER_IFNEW,                           /* add interface */
        ROUTER_IFDEL,                           /* delete interface */
        ROUTER_IFSTAT,                          /* get interface status */
        ROUTER_USER     = (ROUTER_IOCTL<<8)+16, /* driver-specific calls */
        ROUTER_USER_MAX = (ROUTER_IOCTL<<8)+31
};

/* identifiers for displaying proc file data for dual port adapters */
#define PROC_DATA_PORT_0 0x8000 /* the data is for port 0 */
#define PROC_DATA_PORT_1 0x8001 /* the data is for port 1 */

/* NLPID for packet encapsulation (ISO/IEC TR 9577) */
#define NLPID_IP        0xCC    /* Internet Protocol Datagram */
#define NLPID_SNAP      0x80    /* IEEE Subnetwork Access Protocol */
#define NLPID_CLNP      0x81    /* ISO/IEC 8473 */
#define NLPID_ESIS      0x82    /* ISO/IEC 9542 */
#define NLPID_ISIS      0x83    /* ISO/IEC ISIS */
#define NLPID_Q933      0x08    /* CCITT Q.933 */

/* Miscellaneous */
#define WAN_IFNAME_SZ   15      /* max length of the interface name */
#define WAN_DRVNAME_SZ  15      /* max length of the link driver name */
#define WAN_ADDRESS_SZ  31      /* max length of the WAN media address */
#define USED_BY_FIELD   8       /* max length of the used by field */

/* Defines for UDP PACKET TYPE */
#define UDP_PTPIPE_TYPE         0x01
#define UDP_FPIPE_TYPE          0x02
#define UDP_CPIPE_TYPE          0x03
#define UDP_DRVSTATS_TYPE       0x04
#define UDP_INVALID_TYPE        0x05

/* Command return code */
#define CMD_OK          0               /* normal firmware return code */
#define CMD_TIMEOUT     0xFF            /* firmware command timed out */

/* UDP Packet Management */
#define UDP_PKT_FRM_STACK       0x00
#define UDP_PKT_FRM_NETWORK     0x01

/* Maximum interrupt test counter */
#define MAX_INTR_TEST_COUNTER   100

/* Critical Values for RACE conditions*/
#define CRITICAL_IN_ISR         0xA1
#define CRITICAL_INTR_HANDLED   0xB1

/****** Data Types **********************************************************/

/*----------------------------------------------------------------------------
 * X.25-specific link-level configuration.
 */

typedef struct wan_x25_conf
{
        unsigned lo_pvc;        /* lowest permanent circuit number */
        unsigned hi_pvc;        /* highest permanent circuit number */
        unsigned lo_svc;        /* lowest switched circuit number */
        unsigned hi_svc;        /* highest switched circuit number */
        unsigned hdlc_window;   /* HDLC window size (1..7) */
        unsigned pkt_window;    /* X.25 packet window size (1..7) */
        unsigned t1;            /* HDLC timer T1, sec (1..30) */
        unsigned t2;            /* HDLC timer T2, sec (0..29) */
        unsigned t4;            /* HDLC supervisory frame timer = T4 * T1 */
        unsigned n2;            /* HDLC retransmission limit (1..30) */
        unsigned t10_t20;       /* X.25 RESTART timeout, sec (1..255) */
        unsigned t11_t21;       /* X.25 CALL timeout, sec (1..255) */
        unsigned t12_t22;       /* X.25 RESET timeout, sec (1..255) */
        unsigned t13_t23;       /* X.25 CLEAR timeout, sec (1..255) */
        unsigned t16_t26;       /* X.25 INTERRUPT timeout, sec (1..255) */
        unsigned t28;           /* X.25 REGISTRATION timeout, sec (1..255) */
        unsigned r10_r20;       /* RESTART retransmission limit (0..250) */
        unsigned r12_r22;       /* RESET retransmission limit (0..250) */
        unsigned r13_r23;       /* CLEAR retransmission limit (0..250) */
        unsigned ccitt_compat;  /* compatibility mode: 1988/1984/1980 */
        unsigned x25_conf_opt;   /* User defined x25 config optoins */
        unsigned char LAPB_hdlc_only; /* Run in HDLC only mode */
        unsigned char logging;   /* Control connection logging */  
        unsigned char oob_on_modem; /* Whether to send modem status to the user app */
} wan_x25_conf_t;

/*----------------------------------------------------------------------------
 * Frame relay specific link-level configuration.
 */

typedef struct wan_fr_conf
{
        unsigned signalling;    /* local in-channel signalling type */
        unsigned t391;          /* link integrity verification timer */
        unsigned t392;          /* polling verification timer */
        unsigned n391;          /* full status polling cycle counter */
        unsigned n392;          /* error threshold counter */
        unsigned n393;          /* monitored events counter */
        unsigned dlci_num;      /* number of DLCs (access node) */
        unsigned  dlci[100];    /* List of all DLCIs */
} wan_fr_conf_t;

/*----------------------------------------------------------------------------
 * PPP-specific link-level configuration.
 */

typedef struct wan_ppp_conf
{
        unsigned restart_tmr;   /* restart timer */
        unsigned auth_rsrt_tmr; /* authentication timer */
        unsigned auth_wait_tmr; /* authentication timer */
        unsigned mdm_fail_tmr;  /* modem failure timer */
        unsigned dtr_drop_tmr;  /* DTR drop timer */
        unsigned connect_tmout; /* connection timeout */
        unsigned conf_retry;    /* max. retry */
        unsigned term_retry;    /* max. retry */
        unsigned fail_retry;    /* max. retry */
        unsigned auth_retry;    /* max. retry */
        unsigned auth_options;  /* authentication opt. */
        unsigned ip_options;    /* IP options */
        char    authenticator;  /* AUTHENTICATOR or not */
        char    ip_mode;        /* Static/Host/Peer */
} wan_ppp_conf_t;

/*----------------------------------------------------------------------------
 * CHDLC-specific link-level configuration.
 */

typedef struct wan_chdlc_conf
{
        unsigned char ignore_dcd;       /* Protocol options:            */
        unsigned char ignore_cts;       /*  Ignore these to determine   */
        unsigned char ignore_keepalive; /*  link status (Yes or No)     */
        unsigned char hdlc_streaming;   /*  hdlc_streaming mode (Y/N) */
        unsigned char receive_only;     /*  no transmit buffering (Y/N) */
        unsigned keepalive_tx_tmr;      /* transmit keepalive timer */
        unsigned keepalive_rx_tmr;      /* receive  keepalive timer */
        unsigned keepalive_err_margin;  /* keepalive_error_tolerance */
        unsigned slarp_timer;           /* SLARP request timer */
} wan_chdlc_conf_t;


/*----------------------------------------------------------------------------
 * WAN device configuration. Passed to ROUTER_SETUP IOCTL.
 */

typedef struct wandev_conf
{
        unsigned magic;         /* magic number (for verification) */
        unsigned config_id;     /* configuration structure identifier */
                                /****** hardware configuration ******/
        unsigned ioport;        /* adapter I/O port base */
        unsigned long maddr;    /* dual-port memory address */
        unsigned msize;         /* dual-port memory size */
        int irq;                /* interrupt request level */
        int dma;                /* DMA request level */
        char S514_CPU_no[1];    /* S514 PCI adapter CPU number ('A' or 'B') */
        unsigned PCI_slot_no;   /* S514 PCI adapter slot number */
        char auto_pci_cfg;      /* S515 PCI automatic slot detection */
        char comm_port;         /* Communication Port (PRI=0, SEC=1) */
        unsigned bps;           /* data transfer rate */
        unsigned mtu;           /* maximum transmit unit size */
        unsigned udp_port;      /* UDP port for management */
        unsigned char ttl;      /* Time To Live for UDP security */
        unsigned char ft1;      /* FT1 Configurator Option */
        char interface;         /* RS-232/V.35, etc. */
        char clocking;          /* external/internal */
        char line_coding;       /* NRZ/NRZI/FM0/FM1, etc. */
        char station;           /* DTE/DCE, primary/secondary, etc. */
        char connection;        /* permanent/switched/on-demand */
        char read_mode;         /* read mode: Polling or interrupt */
        char receive_only;      /* disable tx buffers */
        char tty;               /* Create a fake tty device */
        unsigned tty_major;     /* Major number for wanpipe tty device */
        unsigned tty_minor;     /* Minor number for wanpipe tty device */
        unsigned tty_mode;      /* TTY operation mode SYNC or ASYNC */
        char backup;            /* Backup Mode */
        unsigned hw_opt[4];     /* other hardware options */
        unsigned reserved[4];
                                /****** arbitrary data ***************/
        unsigned data_size;     /* data buffer size */
        void* data;             /* data buffer, e.g. firmware */
        union                   /****** protocol-specific ************/
        {
                wan_x25_conf_t x25;     /* X.25 configuration */
                wan_ppp_conf_t ppp;     /* PPP configuration */
                wan_fr_conf_t fr;       /* frame relay configuration */
                wan_chdlc_conf_t chdlc; /* Cisco HDLC configuration */
        } u;
} wandev_conf_t;

/* 'config_id' definitions */
#define WANCONFIG_X25   101     /* X.25 link */
#define WANCONFIG_FR    102     /* frame relay link */
#define WANCONFIG_PPP   103     /* synchronous PPP link */
#define WANCONFIG_CHDLC 104     /* Cisco HDLC Link */
#define WANCONFIG_BSC   105     /* BiSync Streaming */
#define WANCONFIG_HDLC  106     /* HDLC Support */
#define WANCONFIG_MPPP  107     /* Multi Port PPP over RAW CHDLC */

/*
 * Configuration options defines.
 */

/* general options */
#define WANOPT_OFF      0
#define WANOPT_ON       1
#define WANOPT_NO       0
#define WANOPT_YES      1

/* intercace options */
#define WANOPT_RS232    0
#define WANOPT_V35      1

/* data encoding options */
#define WANOPT_NRZ      0
#define WANOPT_NRZI     1
#define WANOPT_FM0      2
#define WANOPT_FM1      3

/* link type options */
#define WANOPT_POINTTOPOINT     0       /* RTS always active */
#define WANOPT_MULTIDROP        1       /* RTS is active when transmitting */

/* clocking options */
#define WANOPT_EXTERNAL 0
#define WANOPT_INTERNAL 1

/* station options */
#define WANOPT_DTE              0
#define WANOPT_DCE              1
#define WANOPT_CPE              0
#define WANOPT_NODE             1
#define WANOPT_SECONDARY        0
#define WANOPT_PRIMARY          1

/* connection options */
#define WANOPT_PERMANENT        0       /* DTR always active */
#define WANOPT_SWITCHED         1       /* use DTR to setup link (dial-up) */
#define WANOPT_ONDEMAND         2       /* activate DTR only before sending */

/* frame relay in-channel signalling */
#define WANOPT_FR_ANSI          1       /* ANSI T1.617 Annex D */
#define WANOPT_FR_Q933          2       /* ITU Q.933A */
#define WANOPT_FR_LMI           3       /* LMI */

/* PPP IP Mode Options */
#define WANOPT_PPP_STATIC       0
#define WANOPT_PPP_HOST         1
#define WANOPT_PPP_PEER         2

/* ASY Mode Options */
#define WANOPT_ONE              1
#define WANOPT_TWO              2
#define WANOPT_ONE_AND_HALF     3

#define WANOPT_NONE     0
#define WANOPT_ODD      1
#define WANOPT_EVEN     2

/* CHDLC Protocol Options */
/* DF Commmented out for now.

#define WANOPT_CHDLC_NO_DCD             IGNORE_DCD_FOR_LINK_STAT
#define WANOPT_CHDLC_NO_CTS             IGNORE_CTS_FOR_LINK_STAT
#define WANOPT_CHDLC_NO_KEEPALIVE       IGNORE_KPALV_FOR_LINK_STAT
*/


/* Port options */
#define WANOPT_PRI 0
#define WANOPT_SEC 1
/* read mode */
#define WANOPT_INTR     0
#define WANOPT_POLL     1


#define WANOPT_TTY_SYNC  0
#define WANOPT_TTY_ASYNC 1
/*----------------------------------------------------------------------------
 * WAN Link Status Info (for ROUTER_STAT IOCTL).
 */

typedef struct wandev_stat
{
        unsigned state;         /* link state */
        unsigned ndev;          /* number of configured interfaces */

        /* link/interface configuration */
        unsigned connection;    /* permanent/switched/on-demand */
        unsigned media_type;    /* Frame relay/PPP/X.25/SDLC, etc. */
        unsigned mtu;           /* max. transmit unit for this device */

        /* physical level statistics */
        unsigned modem_status;  /* modem status */
        unsigned rx_frames;     /* received frames count */
        unsigned rx_overruns;   /* receiver overrun error count */
        unsigned rx_crc_err;    /* receive CRC error count */
        unsigned rx_aborts;     /* received aborted frames count */
        unsigned rx_bad_length; /* unexpetedly long/short frames count */
        unsigned rx_dropped;    /* frames discarded at device level */
        unsigned tx_frames;     /* transmitted frames count */
        unsigned tx_underruns;  /* aborted transmissions (underruns) count */
        unsigned tx_timeouts;   /* transmission timeouts */
        unsigned tx_rejects;    /* other transmit errors */

        /* media level statistics */
        unsigned rx_bad_format; /* frames with invalid format */
        unsigned rx_bad_addr;   /* frames with invalid media address */
        unsigned tx_retries;    /* frames re-transmitted */
        unsigned reserved[16];  /* reserved for future use */
} wandev_stat_t;

/* 'state' defines */
enum wan_states
{
        WAN_UNCONFIGURED,       /* link/channel is not configured */
        WAN_DISCONNECTED,       /* link/channel is disconnected */
        WAN_CONNECTING,         /* connection is in progress */
        WAN_CONNECTED,          /* link/channel is operational */
        WAN_LIMIT,              /* for verification only */
        WAN_DUALPORT,           /* for Dual Port cards */
        WAN_DISCONNECTING,
        WAN_FT1_READY           /* FT1 Configurator Ready */
};

enum {
        WAN_LOCAL_IP,
        WAN_POINTOPOINT_IP,
        WAN_NETMASK_IP,
        WAN_BROADCAST_IP
};

/* 'modem_status' masks */
#define WAN_MODEM_CTS   0x0001  /* CTS line active */
#define WAN_MODEM_DCD   0x0002  /* DCD line active */
#define WAN_MODEM_DTR   0x0010  /* DTR line active */
#define WAN_MODEM_RTS   0x0020  /* RTS line active */

/*----------------------------------------------------------------------------
 * WAN interface (logical channel) configuration (for ROUTER_IFNEW IOCTL).
 */

typedef struct wanif_conf
{
        unsigned magic;                 /* magic number */
        unsigned config_id;             /* configuration identifier */
        char name[WAN_IFNAME_SZ+1];     /* interface name, ASCIIZ */
        char addr[WAN_ADDRESS_SZ+1];    /* media address, ASCIIZ */
        char usedby[USED_BY_FIELD];     /* used by API or WANPIPE */
        unsigned idle_timeout;          /* sec, before disconnecting */
        unsigned hold_timeout;          /* sec, before re-connecting */
        unsigned cir;                   /* Committed Information Rate fwd,bwd*/
        unsigned bc;                    /* Committed Burst Size fwd, bwd */
        unsigned be;                    /* Excess Burst Size fwd, bwd */
        unsigned char enable_IPX;       /* Enable or Disable IPX */
        unsigned char inarp;            /* Send Inverse ARP requests Y/N */
        unsigned inarp_interval;        /* sec, between InARP requests */
        unsigned long network_number;   /* Network Number for IPX */
        char mc;                        /* Multicast on or off */
        char local_addr[WAN_ADDRESS_SZ+1];/* local media address, ASCIIZ */
        unsigned char port;             /* board port */
        unsigned char protocol;         /* prococol used in this channel (TCPOX25 or X25) */
        char pap;                       /* PAP enabled or disabled */
        char chap;                      /* CHAP enabled or disabled */
        unsigned char userid[511];      /* List of User Id */
        unsigned char passwd[511];      /* List of passwords */
        unsigned char sysname[31];      /* Name of the system */
        unsigned char ignore_dcd;       /* Protocol options: */
        unsigned char ignore_cts;       /*  Ignore these to determine */
        unsigned char ignore_keepalive; /*  link status (Yes or No) */
        unsigned char hdlc_streaming;   /*  Hdlc streaming mode (Y/N) */
        unsigned keepalive_tx_tmr;      /* transmit keepalive timer */
        unsigned keepalive_rx_tmr;      /* receive  keepalive timer */
        unsigned keepalive_err_margin;  /* keepalive_error_tolerance */
        unsigned slarp_timer;           /* SLARP request timer */
        unsigned char ttl;              /* Time To Live for UDP security */
        char interface;                 /* RS-232/V.35, etc. */
        char clocking;                  /* external/internal */
        unsigned bps;                   /* data transfer rate */
        unsigned mtu;                   /* maximum transmit unit size */
        unsigned char if_down;          /* brind down interface when disconnected */
        unsigned char gateway;          /* Is this interface a gateway */
        unsigned char true_if_encoding; /* Set the dev->type to true board protocol */

        unsigned char asy_data_trans;     /* async API options */
        unsigned char rts_hs_for_receive; /* async Protocol options */
        unsigned char xon_xoff_hs_for_receive;
        unsigned char xon_xoff_hs_for_transmit;
        unsigned char dcd_hs_for_transmit;
        unsigned char cts_hs_for_transmit;
        unsigned char async_mode;
        unsigned tx_bits_per_char;
        unsigned rx_bits_per_char;
        unsigned stop_bits;  
        unsigned char parity;
        unsigned break_timer;
        unsigned inter_char_timer;
        unsigned rx_complete_length;
        unsigned xon_char;
        unsigned xoff_char;
        unsigned char receive_only;     /*  no transmit buffering (Y/N) */
} wanif_conf_t;

#ifdef  __KERNEL__
/****** Kernel Interface ****************************************************/

#include <linux/fs.h>           /* support for device drivers */
#include <linux/proc_fs.h>      /* proc filesystem pragmatics */
#include <linux/netdevice.h>    /* support for network drivers */
/*----------------------------------------------------------------------------
 * WAN device data space.
 */

struct wan_device {
        unsigned magic;                 /* magic number */
        char* name;                     /* -> WAN device name (ASCIIZ) */
        void* private;                  /* -> driver private data */
        unsigned config_id;             /* Configuration ID */
                                        /****** hardware configuration ******/
        unsigned ioport;                /* adapter I/O port base #1 */
        char S514_cpu_no[1];            /* PCI CPU Number */
        unsigned char S514_slot_no;     /* PCI Slot Number */
        unsigned long maddr;            /* dual-port memory address */
        unsigned msize;                 /* dual-port memory size */
        int irq;                        /* interrupt request level */
        int dma;                        /* DMA request level */
        unsigned bps;                   /* data transfer rate */
        unsigned mtu;                   /* max physical transmit unit size */
        unsigned udp_port;              /* UDP port for management */
        unsigned char ttl;              /* Time To Live for UDP security */
        unsigned enable_tx_int;         /* Transmit Interrupt enabled or not */
        char interface;                 /* RS-232/V.35, etc. */
        char clocking;                  /* external/internal */
        char line_coding;               /* NRZ/NRZI/FM0/FM1, etc. */
        char station;                   /* DTE/DCE, primary/secondary, etc. */
        char connection;                /* permanent/switched/on-demand */
        char signalling;                /* Signalling RS232 or V35 */
        char read_mode;                 /* read mode: Polling or interrupt */
        char new_if_cnt;                /* Number of interfaces per wanpipe */
        char del_if_cnt;                /* Number of times del_if() gets called */
        unsigned char piggyback;        /* Piggibacking a port */
        unsigned hw_opt[4];             /* other hardware options */
                                        /****** status and statistics *******/
        char state;                     /* device state */
        char api_status;                /* device api status */
        struct net_device_stats stats;  /* interface statistics */
        unsigned reserved[16];          /* reserved for future use */
        unsigned long critical;         /* critical section flag */
        spinlock_t lock;                /* Support for SMP Locking */

                                        /****** device management methods ***/
        int (*setup) (struct wan_device *wandev, wandev_conf_t *conf);
        int (*shutdown) (struct wan_device *wandev);
        int (*update) (struct wan_device *wandev);
        int (*ioctl) (struct wan_device *wandev, unsigned cmd,
                unsigned long arg);
        int (*new_if)(struct wan_device *wandev, struct net_device *dev,
                      wanif_conf_t *conf);
        int (*del_if)(struct wan_device *wandev, struct net_device *dev);
                                        /****** maintained by the router ****/
        struct wan_device* next;        /* -> next device */
        struct net_device* dev;         /* list of network interfaces */
        unsigned ndev;                  /* number of interfaces */
        struct proc_dir_entry *dent;    /* proc filesystem entry */
};

/* Public functions available for device drivers */
extern int register_wan_device(struct wan_device *wandev);
extern int unregister_wan_device(char *name);
unsigned short wanrouter_type_trans(struct sk_buff *skb,
                                    struct net_device *dev);
int wanrouter_encapsulate(struct sk_buff *skb, struct net_device *dev,
                          unsigned short type);

/* Proc interface functions. These must not be called by the drivers! */
extern int wanrouter_proc_init(void);
extern void wanrouter_proc_cleanup(void);
extern int wanrouter_proc_add(struct wan_device *wandev);
extern int wanrouter_proc_delete(struct wan_device *wandev);
extern int wanrouter_ioctl( struct inode *inode, struct file *file, unsigned int cmd, unsigned long arg);

extern void lock_adapter_irq(spinlock_t *lock, unsigned long *smp_flags);
extern void unlock_adapter_irq(spinlock_t *lock, unsigned long *smp_flags);



/* Public Data */
/* list of registered devices */
extern struct wan_device *wanrouter_router_devlist;

#endif  /* __KERNEL__ */
#endif  /* _ROUTER_H */