isdn.h
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- /* $Id: isdn.h,v 1.125.2.3 2004/02/10 01:07:14 keil Exp $
- *
- * Main header for the Linux ISDN subsystem (linklevel).
- *
- * Copyright 1994,95,96 by Fritz Elfert (fritz@isdn4linux.de)
- * Copyright 1995,96 by Thinking Objects Software GmbH Wuerzburg
- * Copyright 1995,96 by Michael Hipp (Michael.Hipp@student.uni-tuebingen.de)
- *
- * This software may be used and distributed according to the terms
- * of the GNU General Public License, incorporated herein by reference.
- *
- */
- #ifndef __ISDN_H__
- #define __ISDN_H__
- #include <linux/ioctl.h>
- #ifdef CONFIG_COBALT_MICRO_SERVER
- /* Save memory */
- #define ISDN_MAX_DRIVERS 2
- #define ISDN_MAX_CHANNELS 8
- #else
- #define ISDN_MAX_DRIVERS 32
- #define ISDN_MAX_CHANNELS 64
- #endif
- /* New ioctl-codes */
- #define IIOCNETAIF _IO('I',1)
- #define IIOCNETDIF _IO('I',2)
- #define IIOCNETSCF _IO('I',3)
- #define IIOCNETGCF _IO('I',4)
- #define IIOCNETANM _IO('I',5)
- #define IIOCNETDNM _IO('I',6)
- #define IIOCNETGNM _IO('I',7)
- #define IIOCGETSET _IO('I',8) /* no longer supported */
- #define IIOCSETSET _IO('I',9) /* no longer supported */
- #define IIOCSETVER _IO('I',10)
- #define IIOCNETHUP _IO('I',11)
- #define IIOCSETGST _IO('I',12)
- #define IIOCSETBRJ _IO('I',13)
- #define IIOCSIGPRF _IO('I',14)
- #define IIOCGETPRF _IO('I',15)
- #define IIOCSETPRF _IO('I',16)
- #define IIOCGETMAP _IO('I',17)
- #define IIOCSETMAP _IO('I',18)
- #define IIOCNETASL _IO('I',19)
- #define IIOCNETDIL _IO('I',20)
- #define IIOCGETCPS _IO('I',21)
- #define IIOCGETDVR _IO('I',22)
- #define IIOCNETLCR _IO('I',23) /* dwabc ioctl for LCR from isdnlog */
- #define IIOCNETDWRSET _IO('I',24) /* dwabc ioctl to reset abc-values to default on a net-interface */
- #define IIOCNETALN _IO('I',32)
- #define IIOCNETDLN _IO('I',33)
- #define IIOCNETGPN _IO('I',34)
- #define IIOCDBGVAR _IO('I',127)
- #define IIOCDRVCTL _IO('I',128)
- /* cisco hdlck device private ioctls */
- #define SIOCGKEEPPERIOD (SIOCDEVPRIVATE + 0)
- #define SIOCSKEEPPERIOD (SIOCDEVPRIVATE + 1)
- #define SIOCGDEBSERINT (SIOCDEVPRIVATE + 2)
- #define SIOCSDEBSERINT (SIOCDEVPRIVATE + 3)
- /* Packet encapsulations for net-interfaces */
- #define ISDN_NET_ENCAP_ETHER 0
- #define ISDN_NET_ENCAP_RAWIP 1
- #define ISDN_NET_ENCAP_IPTYP 2
- #define ISDN_NET_ENCAP_CISCOHDLC 3 /* Without SLARP and keepalive */
- #define ISDN_NET_ENCAP_SYNCPPP 4
- #define ISDN_NET_ENCAP_UIHDLC 5
- #define ISDN_NET_ENCAP_CISCOHDLCK 6 /* With SLARP and keepalive */
- #define ISDN_NET_ENCAP_X25IFACE 7 /* Documentation/networking/x25-iface.txt*/
- #define ISDN_NET_ENCAP_MAX_ENCAP ISDN_NET_ENCAP_X25IFACE
- /* Facility which currently uses an ISDN-channel */
- #define ISDN_USAGE_NONE 0
- #define ISDN_USAGE_RAW 1
- #define ISDN_USAGE_MODEM 2
- #define ISDN_USAGE_NET 3
- #define ISDN_USAGE_VOICE 4
- #define ISDN_USAGE_FAX 5
- #define ISDN_USAGE_MASK 7 /* Mask to get plain usage */
- #define ISDN_USAGE_DISABLED 32 /* This bit is set, if channel is disabled */
- #define ISDN_USAGE_EXCLUSIVE 64 /* This bit is set, if channel is exclusive */
- #define ISDN_USAGE_OUTGOING 128 /* This bit is set, if channel is outgoing */
- #define ISDN_MODEM_NUMREG 24 /* Number of Modem-Registers */
- #define ISDN_LMSNLEN 255 /* Length of tty's Listen-MSN string */
- #define ISDN_CMSGLEN 50 /* Length of CONNECT-Message to add for Modem */
- #define ISDN_MSNLEN 32
- #define NET_DV 0x06 /* Data version for isdn_net_ioctl_cfg */
- #define TTY_DV 0x06 /* Data version for iprofd etc. */
- #define INF_DV 0x01 /* Data version for /dev/isdninfo */
- typedef struct {
- char drvid[25];
- unsigned long arg;
- } isdn_ioctl_struct;
- typedef struct {
- char name[10];
- char phone[ISDN_MSNLEN];
- int outgoing;
- } isdn_net_ioctl_phone;
- typedef struct {
- char name[10]; /* Name of interface */
- char master[10]; /* Name of Master for Bundling */
- char slave[10]; /* Name of Slave for Bundling */
- char eaz[256]; /* EAZ/MSN */
- char drvid[25]; /* DriverId for Bindings */
- int onhtime; /* Hangup-Timeout */
- int charge; /* Charge-Units */
- int l2_proto; /* Layer-2 protocol */
- int l3_proto; /* Layer-3 protocol */
- int p_encap; /* Encapsulation */
- int exclusive; /* Channel, if bound exclusive */
- int dialmax; /* Dial Retry-Counter */
- int slavedelay; /* Delay until slave starts up */
- int cbdelay; /* Delay before Callback */
- int chargehup; /* Flag: Charge-Hangup */
- int ihup; /* Flag: Hangup-Timeout on incoming line */
- int secure; /* Flag: Secure */
- int callback; /* Flag: Callback */
- int cbhup; /* Flag: Reject Call before Callback */
- int pppbind; /* ippp device for bindings */
- int chargeint; /* Use fixed charge interval length */
- int triggercps; /* BogoCPS needed for triggering slave */
- int dialtimeout; /* Dial-Timeout */
- int dialwait; /* Time to wait after failed dial */
- int dialmode; /* Flag: off / on / auto */
- } isdn_net_ioctl_cfg;
- #define ISDN_NET_DIALMODE_MASK 0xC0 /* bits for status */
- #define ISDN_NET_DM_OFF 0x00 /* this interface is stopped */
- #define ISDN_NET_DM_MANUAL 0x40 /* this interface is on (manual) */
- #define ISDN_NET_DM_AUTO 0x80 /* this interface is autodial */
- #define ISDN_NET_DIALMODE(x) ((&(x))->flags & ISDN_NET_DIALMODE_MASK)
- #ifdef __KERNEL__
- #include <linux/config.h>
- #include <linux/errno.h>
- #include <linux/fs.h>
- #include <linux/major.h>
- #include <asm/io.h>
- #include <linux/kernel.h>
- #include <linux/signal.h>
- #include <linux/slab.h>
- #include <linux/timer.h>
- #include <linux/wait.h>
- #include <linux/tty.h>
- #include <linux/tty_flip.h>
- #include <linux/serial_reg.h>
- #include <linux/fcntl.h>
- #include <linux/types.h>
- #include <linux/interrupt.h>
- #include <linux/ip.h>
- #include <linux/in.h>
- #include <linux/netdevice.h>
- #include <linux/etherdevice.h>
- #include <linux/skbuff.h>
- #include <linux/tcp.h>
- #define ISDN_TTY_MAJOR 43
- #define ISDN_TTYAUX_MAJOR 44
- #define ISDN_MAJOR 45
- /* The minor-devicenumbers for Channel 0 and 1 are used as arguments for
- * physical Channel-Mapping, so they MUST NOT be changed without changing
- * the correspondent code in isdn.c
- */
- #define ISDN_MINOR_B 0
- #define ISDN_MINOR_BMAX (ISDN_MAX_CHANNELS-1)
- #define ISDN_MINOR_CTRL 64
- #define ISDN_MINOR_CTRLMAX (64 + (ISDN_MAX_CHANNELS-1))
- #define ISDN_MINOR_PPP 128
- #define ISDN_MINOR_PPPMAX (128 + (ISDN_MAX_CHANNELS-1))
- #define ISDN_MINOR_STATUS 255
- #ifdef CONFIG_ISDN_PPP
- #ifdef CONFIG_ISDN_PPP_VJ
- # include <net/slhc_vj.h>
- #endif
- #include <linux/ppp_defs.h>
- #include <linux/if_ppp.h>
- #include <linux/isdn_ppp.h>
- #endif
- #ifdef CONFIG_ISDN_X25
- # include <linux/concap.h>
- #endif
- #include <linux/isdnif.h>
- #define ISDN_DRVIOCTL_MASK 0x7f /* Mask for Device-ioctl */
- /* Until now unused */
- #define ISDN_SERVICE_VOICE 1
- #define ISDN_SERVICE_AB 1<<1
- #define ISDN_SERVICE_X21 1<<2
- #define ISDN_SERVICE_G4 1<<3
- #define ISDN_SERVICE_BTX 1<<4
- #define ISDN_SERVICE_DFUE 1<<5
- #define ISDN_SERVICE_X25 1<<6
- #define ISDN_SERVICE_TTX 1<<7
- #define ISDN_SERVICE_MIXED 1<<8
- #define ISDN_SERVICE_FW 1<<9
- #define ISDN_SERVICE_GTEL 1<<10
- #define ISDN_SERVICE_BTXN 1<<11
- #define ISDN_SERVICE_BTEL 1<<12
- /* Macros checking plain usage */
- #define USG_NONE(x) ((x & ISDN_USAGE_MASK)==ISDN_USAGE_NONE)
- #define USG_RAW(x) ((x & ISDN_USAGE_MASK)==ISDN_USAGE_RAW)
- #define USG_MODEM(x) ((x & ISDN_USAGE_MASK)==ISDN_USAGE_MODEM)
- #define USG_VOICE(x) ((x & ISDN_USAGE_MASK)==ISDN_USAGE_VOICE)
- #define USG_NET(x) ((x & ISDN_USAGE_MASK)==ISDN_USAGE_NET)
- #define USG_FAX(x) ((x & ISDN_USAGE_MASK)==ISDN_USAGE_FAX)
- #define USG_OUTGOING(x) ((x & ISDN_USAGE_OUTGOING)==ISDN_USAGE_OUTGOING)
- #define USG_MODEMORVOICE(x) (((x & ISDN_USAGE_MASK)==ISDN_USAGE_MODEM) ||
- ((x & ISDN_USAGE_MASK)==ISDN_USAGE_VOICE) )
- /* Timer-delays and scheduling-flags */
- #define ISDN_TIMER_RES 4 /* Main Timer-Resolution */
- #define ISDN_TIMER_02SEC (HZ/ISDN_TIMER_RES/5) /* Slow-Timer1 .2 sec */
- #define ISDN_TIMER_1SEC (HZ/ISDN_TIMER_RES) /* Slow-Timer2 1 sec */
- #define ISDN_TIMER_RINGING 5 /* tty RINGs = ISDN_TIMER_1SEC * this factor */
- #define ISDN_TIMER_KEEPINT 10 /* Cisco-Keepalive = ISDN_TIMER_1SEC * this factor */
- #define ISDN_TIMER_MODEMREAD 1
- #define ISDN_TIMER_MODEMPLUS 2
- #define ISDN_TIMER_MODEMRING 4
- #define ISDN_TIMER_MODEMXMIT 8
- #define ISDN_TIMER_NETDIAL 16
- #define ISDN_TIMER_NETHANGUP 32
- #define ISDN_TIMER_CARRIER 256 /* Wait for Carrier */
- #define ISDN_TIMER_FAST (ISDN_TIMER_MODEMREAD | ISDN_TIMER_MODEMPLUS |
- ISDN_TIMER_MODEMXMIT)
- #define ISDN_TIMER_SLOW (ISDN_TIMER_MODEMRING | ISDN_TIMER_NETHANGUP |
- ISDN_TIMER_NETDIAL | ISDN_TIMER_CARRIER)
- /* Timeout-Values for isdn_net_dial() */
- #define ISDN_TIMER_DTIMEOUT10 (10*HZ/(ISDN_TIMER_02SEC*(ISDN_TIMER_RES+1)))
- #define ISDN_TIMER_DTIMEOUT15 (15*HZ/(ISDN_TIMER_02SEC*(ISDN_TIMER_RES+1)))
- #define ISDN_TIMER_DTIMEOUT60 (60*HZ/(ISDN_TIMER_02SEC*(ISDN_TIMER_RES+1)))
- /* GLOBAL_FLAGS */
- #define ISDN_GLOBAL_STOPPED 1
- /*=================== Start of ip-over-ISDN stuff =========================*/
- /* Feature- and status-flags for a net-interface */
- #define ISDN_NET_CONNECTED 0x01 /* Bound to ISDN-Channel */
- #define ISDN_NET_SECURE 0x02 /* Accept calls from phonelist only */
- #define ISDN_NET_CALLBACK 0x04 /* activate callback */
- #define ISDN_NET_CBHUP 0x08 /* hangup before callback */
- #define ISDN_NET_CBOUT 0x10 /* remote machine does callback */
- #define ISDN_NET_MAGIC 0x49344C02 /* for paranoia-checking */
- /* Phone-list-element */
- typedef struct {
- void *next;
- char num[ISDN_MSNLEN];
- } isdn_net_phone;
- /*
- Principles when extending structures for generic encapsulation protocol
- ("concap") support:
- - Stuff which is hardware specific (here i4l-specific) goes in
- the netdev -> local structure (here: isdn_net_local)
- - Stuff which is encapsulation protocol specific goes in the structure
- which holds the linux device structure (here: isdn_net_device)
- */
- /* Local interface-data */
- typedef struct isdn_net_local_s {
- ulong magic;
- char name[10]; /* Name of device */
- struct net_device_stats stats; /* Ethernet Statistics */
- int isdn_device; /* Index to isdn-device */
- int isdn_channel; /* Index to isdn-channel */
- int ppp_slot; /* PPPD device slot number */
- int pre_device; /* Preselected isdn-device */
- int pre_channel; /* Preselected isdn-channel */
- int exclusive; /* If non-zero idx to reserved chan.*/
- int flags; /* Connection-flags */
- int dialretry; /* Counter for Dialout-retries */
- int dialmax; /* Max. Number of Dial-retries */
- int cbdelay; /* Delay before Callback starts */
- int dtimer; /* Timeout-counter for dialing */
- char msn[ISDN_MSNLEN]; /* MSNs/EAZs for this interface */
- u_char cbhup; /* Flag: Reject Call before Callback*/
- u_char dialstate; /* State for dialing */
- u_char p_encap; /* Packet encapsulation */
- /* 0 = Ethernet over ISDN */
- /* 1 = RAW-IP */
- /* 2 = IP with type field */
- u_char l2_proto; /* Layer-2-protocol */
- /* See ISDN_PROTO_L2..-constants in */
- /* isdnif.h */
- /* 0 = X75/LAPB with I-Frames */
- /* 1 = X75/LAPB with UI-Frames */
- /* 2 = X75/LAPB with BUI-Frames */
- /* 3 = HDLC */
- u_char l3_proto; /* Layer-3-protocol */
- /* See ISDN_PROTO_L3..-constants in */
- /* isdnif.h */
- /* 0 = Transparent */
- int huptimer; /* Timeout-counter for auto-hangup */
- int charge; /* Counter for charging units */
- ulong chargetime; /* Timer for Charging info */
- int hupflags; /* Flags for charge-unit-hangup: */
- /* bit0: chargeint is invalid */
- /* bit1: Getting charge-interval */
- /* bit2: Do charge-unit-hangup */
- /* bit3: Do hangup even on incoming */
- int outgoing; /* Flag: outgoing call */
- int onhtime; /* Time to keep link up */
- int chargeint; /* Interval between charge-infos */
- int onum; /* Flag: at least 1 outgoing number */
- int cps; /* current speed of this interface */
- int transcount; /* byte-counter for cps-calculation */
- int sqfull; /* Flag: netdev-queue overloaded */
- ulong sqfull_stamp; /* Start-Time of overload */
- ulong slavedelay; /* Dynamic bundling delaytime */
- int triggercps; /* BogoCPS needed for trigger slave */
- isdn_net_phone *phone[2]; /* List of remote-phonenumbers */
- /* phone[0] = Incoming Numbers */
- /* phone[1] = Outgoing Numbers */
- isdn_net_phone *dial; /* Pointer to dialed number */
- struct net_device *master; /* Ptr to Master device for slaves */
- struct net_device *slave; /* Ptr to Slave device for masters */
- struct isdn_net_local_s *next; /* Ptr to next link in bundle */
- struct isdn_net_local_s *last; /* Ptr to last link in bundle */
- struct isdn_net_dev_s *netdev; /* Ptr to netdev */
- struct sk_buff_head super_tx_queue; /* List of supervisory frames to */
- /* be transmitted asap */
- atomic_t frame_cnt; /* number of frames currently */
- /* queued in HL driver */
- /* Ptr to orig. hard_header_cache */
- spinlock_t xmit_lock; /* used to protect the xmit path of */
- /* a particular channel (including */
- /* the frame_cnt */
- int (*org_hhc)(
- struct neighbour *neigh,
- struct hh_cache *hh);
- /* Ptr to orig. header_cache_update */
- void (*org_hcu)(struct hh_cache *,
- struct net_device *,
- unsigned char *);
- int pppbind; /* ippp device for bindings */
- int dialtimeout; /* How long shall we try on dialing? (jiffies) */
- int dialwait; /* How long shall we wait after failed attempt? (jiffies) */
- ulong dialstarted; /* jiffies of first dialing-attempt */
- ulong dialwait_timer; /* jiffies of earliest next dialing-attempt */
- int huptimeout; /* How long will the connection be up? (seconds) */
- #ifdef CONFIG_ISDN_X25
- struct concap_device_ops *dops; /* callbacks used by encapsulator */
- #endif
- /* use an own struct for that in later versions */
- ulong cisco_myseq; /* Local keepalive seq. for Cisco */
- ulong cisco_mineseen; /* returned keepalive seq. from remote */
- ulong cisco_yourseq; /* Remote keepalive seq. for Cisco */
- int cisco_keepalive_period; /* keepalive period */
- ulong cisco_last_slarp_in; /* jiffie of last keepalive packet we received */
- char cisco_line_state; /* state of line according to keepalive packets */
- char cisco_debserint; /* debugging flag of cisco hdlc with slarp */
- struct timer_list cisco_timer;
- struct work_struct tqueue;
- } isdn_net_local;
- /* the interface itself */
- typedef struct isdn_net_dev_s {
- isdn_net_local *local;
- isdn_net_local *queue; /* circular list of all bundled
- channels, which are currently
- online */
- spinlock_t queue_lock; /* lock to protect queue */
- void *next; /* Pointer to next isdn-interface */
- struct net_device dev; /* interface to upper levels */
- #ifdef CONFIG_ISDN_PPP
- ippp_bundle * pb; /* pointer to the common bundle structure
- * with the per-bundle data */
- #endif
- #ifdef CONFIG_ISDN_X25
- struct concap_proto *cprot; /* connection oriented encapsulation protocol */
- #endif
- } isdn_net_dev;
- /*===================== End of ip-over-ISDN stuff ===========================*/
- /*======================= Start of ISDN-tty stuff ===========================*/
- #define ISDN_ASYNC_MAGIC 0x49344C01 /* for paranoia-checking */
- #define ISDN_ASYNC_INITIALIZED 0x80000000 /* port was initialized */
- #define ISDN_ASYNC_CALLOUT_ACTIVE 0x40000000 /* Call out device active */
- #define ISDN_ASYNC_NORMAL_ACTIVE 0x20000000 /* Normal device active */
- #define ISDN_ASYNC_CLOSING 0x08000000 /* Serial port is closing */
- #define ISDN_ASYNC_CTS_FLOW 0x04000000 /* Do CTS flow control */
- #define ISDN_ASYNC_CHECK_CD 0x02000000 /* i.e., CLOCAL */
- #define ISDN_ASYNC_HUP_NOTIFY 0x0001 /* Notify tty on hangups/closes */
- #define ISDN_ASYNC_SESSION_LOCKOUT 0x0100 /* Lock cua opens on session */
- #define ISDN_ASYNC_PGRP_LOCKOUT 0x0200 /* Lock cua opens on pgrp */
- #define ISDN_ASYNC_CALLOUT_NOHUP 0x0400 /* No hangup for cui */
- #define ISDN_ASYNC_SPLIT_TERMIOS 0x0008 /* Sep. termios for dialin/out */
- #define ISDN_SERIAL_XMIT_SIZE 1024 /* Default bufsize for write */
- #define ISDN_SERIAL_XMIT_MAX 4000 /* Maximum bufsize for write */
- #define ISDN_SERIAL_TYPE_NORMAL 1
- #define ISDN_SERIAL_TYPE_CALLOUT 2
- #ifdef CONFIG_ISDN_AUDIO
- /* For using sk_buffs with audio we need some private variables
- * within each sk_buff. For this purpose, we declare a struct here,
- * and put it always at the private skb->cb data array. A few macros help
- * accessing the variables.
- */
- typedef struct _isdn_audio_data {
- unsigned short dle_count;
- unsigned char lock;
- } isdn_audio_data_t;
- #define ISDN_AUDIO_SKB_DLECOUNT(skb) (((isdn_audio_data_t *)&skb->cb[0])->dle_count)
- #define ISDN_AUDIO_SKB_LOCK(skb) (((isdn_audio_data_t *)&skb->cb[0])->lock)
- #endif
- /* Private data of AT-command-interpreter */
- typedef struct atemu {
- u_char profile[ISDN_MODEM_NUMREG]; /* Modem-Regs. Profile 0 */
- u_char mdmreg[ISDN_MODEM_NUMREG]; /* Modem-Registers */
- char pmsn[ISDN_MSNLEN]; /* EAZ/MSNs Profile 0 */
- char msn[ISDN_MSNLEN]; /* EAZ/MSN */
- char plmsn[ISDN_LMSNLEN]; /* Listening MSNs Profile 0 */
- char lmsn[ISDN_LMSNLEN]; /* Listening MSNs */
- char cpn[ISDN_MSNLEN]; /* CalledPartyNumber on incoming call */
- char connmsg[ISDN_CMSGLEN]; /* CONNECT-Msg from HL-Driver */
- #ifdef CONFIG_ISDN_AUDIO
- u_char vpar[10]; /* Voice-parameters */
- int lastDLE; /* Flag for voice-coding: DLE seen */
- #endif
- int mdmcmdl; /* Length of Modem-Commandbuffer */
- int pluscount; /* Counter for +++ sequence */
- u_long lastplus; /* Timestamp of last + */
- int carrierwait; /* Seconds of carrier waiting */
- char mdmcmd[255]; /* Modem-Commandbuffer */
- unsigned int charge; /* Charge units of current connection */
- } atemu;
- /* Private data (similar to async_struct in <linux/serial.h>) */
- typedef struct modem_info {
- int magic;
- struct module *owner;
- int flags; /* defined in tty.h */
- int x_char; /* xon/xoff character */
- int mcr; /* Modem control register */
- int msr; /* Modem status register */
- int lsr; /* Line status register */
- int line;
- int count; /* # of fd on device */
- int blocked_open; /* # of blocked opens */
- long session; /* Session of opening process */
- long pgrp; /* pgrp of opening process */
- int online; /* 1 = B-Channel is up, drop data */
- /* 2 = B-Channel is up, deliver d.*/
- int dialing; /* Dial in progress or ATA */
- int rcvsched; /* Receive needs schedule */
- int isdn_driver; /* Index to isdn-driver */
- int isdn_channel; /* Index to isdn-channel */
- int drv_index; /* Index to dev->usage */
- int ncarrier; /* Flag: schedule NO CARRIER */
- unsigned char last_cause[8]; /* Last cause message */
- unsigned char last_num[ISDN_MSNLEN];
- /* Last phone-number */
- unsigned char last_l2; /* Last layer-2 protocol */
- unsigned char last_si; /* Last service */
- unsigned char last_lhup; /* Last hangup local? */
- unsigned char last_dir; /* Last direction (in or out) */
- struct timer_list nc_timer; /* Timer for delayed NO CARRIER */
- int send_outstanding;/* # of outstanding send-requests */
- int xmit_size; /* max. # of chars in xmit_buf */
- int xmit_count; /* # of chars in xmit_buf */
- unsigned char *xmit_buf; /* transmit buffer */
- struct sk_buff_head xmit_queue; /* transmit queue */
- atomic_t xmit_lock; /* Semaphore for isdn_tty_write */
- #ifdef CONFIG_ISDN_AUDIO
- int vonline; /* Voice-channel status */
- /* Bit 0 = recording */
- /* Bit 1 = playback */
- /* Bit 2 = playback, DLE-ETX seen */
- struct sk_buff_head dtmf_queue; /* queue for dtmf results */
- void *adpcms; /* state for adpcm decompression */
- void *adpcmr; /* state for adpcm compression */
- void *dtmf_state; /* state for dtmf decoder */
- void *silence_state; /* state for silence detection */
- #endif
- #ifdef CONFIG_ISDN_TTY_FAX
- struct T30_s *fax; /* T30 Fax Group 3 data/interface */
- int faxonline; /* Fax-channel status */
- #endif
- struct tty_struct *tty; /* Pointer to corresponding tty */
- atemu emu; /* AT-emulator data */
- struct termios normal_termios; /* For saving termios structs */
- struct termios callout_termios;
- wait_queue_head_t open_wait, close_wait;
- struct semaphore write_sem;
- spinlock_t readlock;
- } modem_info;
- #define ISDN_MODEM_WINSIZE 8
- /* Description of one ISDN-tty */
- typedef struct _isdn_modem {
- int refcount; /* Number of opens */
- struct tty_driver *tty_modem; /* tty-device */
- struct tty_struct *modem_table[ISDN_MAX_CHANNELS]; /* ?? copied from Orig */
- struct termios *modem_termios[ISDN_MAX_CHANNELS];
- struct termios *modem_termios_locked[ISDN_MAX_CHANNELS];
- modem_info info[ISDN_MAX_CHANNELS]; /* Private data */
- } isdn_modem_t;
- /*======================= End of ISDN-tty stuff ============================*/
- /*======================== Start of V.110 stuff ============================*/
- #define V110_BUFSIZE 1024
- typedef struct {
- int nbytes; /* 1 Matrixbyte -> nbytes in stream */
- int nbits; /* Number of used bits in streambyte */
- unsigned char key; /* Bitmask in stream eg. 11 (nbits=2) */
- int decodelen; /* Amount of data in decodebuf */
- int SyncInit; /* Number of sync frames to send */
- unsigned char *OnlineFrame; /* Precalculated V110 idle frame */
- unsigned char *OfflineFrame; /* Precalculated V110 sync Frame */
- int framelen; /* Length of frames */
- int skbuser; /* Number of unacked userdata skbs */
- int skbidle; /* Number of unacked idle/sync skbs */
- int introducer; /* Local vars for decoder */
- int dbit;
- unsigned char b;
- int skbres; /* space to reserve in outgoing skb */
- int maxsize; /* maxbufsize of lowlevel driver */
- unsigned char *encodebuf; /* temporary buffer for encoding */
- unsigned char decodebuf[V110_BUFSIZE]; /* incomplete V110 matrices */
- } isdn_v110_stream;
- /*========================= End of V.110 stuff =============================*/
- /*======================= Start of general stuff ===========================*/
- typedef struct {
- char *next;
- char *private;
- } infostruct;
- #define DRV_FLAG_RUNNING 1
- #define DRV_FLAG_REJBUS 2
- #define DRV_FLAG_LOADED 4
- /* Description of hardware-level-driver */
- typedef struct _isdn_driver {
- ulong online; /* Channel-Online flags */
- ulong flags; /* Misc driver Flags */
- int locks; /* Number of locks for this driver */
- int channels; /* Number of channels */
- wait_queue_head_t st_waitq; /* Wait-Queue for status-read's */
- int maxbufsize; /* Maximum Buffersize supported */
- unsigned long pktcount; /* Until now: unused */
- int stavail; /* Chars avail on Status-device */
- isdn_if *interface; /* Interface to driver */
- int *rcverr; /* Error-counters for B-Ch.-receive */
- int *rcvcount; /* Byte-counters for B-Ch.-receive */
- #ifdef CONFIG_ISDN_AUDIO
- unsigned long DLEflag; /* Flags: Insert DLE at next read */
- #endif
- struct sk_buff_head *rpqueue; /* Pointers to start of Rcv-Queue */
- wait_queue_head_t *rcv_waitq; /* Wait-Queues for B-Channel-Reads */
- wait_queue_head_t *snd_waitq; /* Wait-Queue for B-Channel-Send's */
- char msn2eaz[10][ISDN_MSNLEN]; /* Mapping-Table MSN->EAZ */
- } isdn_driver_t;
- /* Main driver-data */
- typedef struct isdn_devt {
- struct module *owner;
- spinlock_t lock;
- unsigned short flags; /* Bitmapped Flags: */
- int drivers; /* Current number of drivers */
- int channels; /* Current number of channels */
- int net_verbose; /* Verbose-Flag */
- int modempoll; /* Flag: tty-read active */
- spinlock_t timerlock;
- int tflags; /* Timer-Flags: */
- /* see ISDN_TIMER_..defines */
- int global_flags;
- infostruct *infochain; /* List of open info-devs. */
- wait_queue_head_t info_waitq; /* Wait-Queue for isdninfo */
- struct timer_list timer; /* Misc.-function Timer */
- int chanmap[ISDN_MAX_CHANNELS]; /* Map minor->device-channel */
- int drvmap[ISDN_MAX_CHANNELS]; /* Map minor->driver-index */
- int usage[ISDN_MAX_CHANNELS]; /* Used by tty/ip/voice */
- char num[ISDN_MAX_CHANNELS][ISDN_MSNLEN];
- /* Remote number of active ch.*/
- int m_idx[ISDN_MAX_CHANNELS]; /* Index for mdm.... */
- isdn_driver_t *drv[ISDN_MAX_DRIVERS]; /* Array of drivers */
- isdn_net_dev *netdev; /* Linked list of net-if's */
- char drvid[ISDN_MAX_DRIVERS][20];/* Driver-ID */
- struct task_struct *profd; /* For iprofd */
- isdn_modem_t mdm; /* tty-driver-data */
- isdn_net_dev *rx_netdev[ISDN_MAX_CHANNELS]; /* rx netdev-pointers */
- isdn_net_dev *st_netdev[ISDN_MAX_CHANNELS]; /* stat netdev-pointers */
- ulong ibytes[ISDN_MAX_CHANNELS]; /* Statistics incoming bytes */
- ulong obytes[ISDN_MAX_CHANNELS]; /* Statistics outgoing bytes */
- int v110emu[ISDN_MAX_CHANNELS]; /* V.110 emulator-mode 0=none */
- atomic_t v110use[ISDN_MAX_CHANNELS]; /* Usage-Semaphore for stream */
- isdn_v110_stream *v110[ISDN_MAX_CHANNELS]; /* V.110 private data */
- struct semaphore sem; /* serialize list access*/
- unsigned long global_features;
- } isdn_dev;
- extern isdn_dev *dev;
- #endif /* __KERNEL__ */
- #endif /* __ISDN_H__ */