patch-1.3.69 linux/include/linux/isdn.h
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- Lines: 567
- Date:
Mon Feb 26 11:58:16 1996
- Orig file:
v1.3.68/linux/include/linux/isdn.h
- Orig date:
Thu Jan 1 02:00:00 1970
diff -u --recursive --new-file v1.3.68/linux/include/linux/isdn.h linux/include/linux/isdn.h
@@ -0,0 +1,566 @@
+/* $Id: isdn.h,v 1.2 1996/02/11 02:10:02 fritz Exp fritz $
+ *
+ * Main header for the Linux ISDN subsystem (linklevel).
+ *
+ * Copyright 1994,95,96 by Fritz Elfert (fritz@wuemaus.franken.de)
+ * Copyright 1995,96 by Thinking Objects Software GmbH Wuerzburg
+ * Copyright 1995,96 by Michael Hipp (Michael.Hipp@student.uni-tuebingen.de)
+ *
+ * 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, 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., 675 Mass Ave, Cambridge, MA 02139, USA.
+ *
+ * $Log: isdn.h,v $
+ * Revision 1.2 1996/02/11 02:10:02 fritz
+ * Changed IOCTL-names
+ * Added rx_netdev, st_netdev, first_skb, org_hcb, and org_hcu to
+ * Netdevice-local struct.
+ *
+ * Revision 1.1 1996/01/10 20:55:07 fritz
+ * Initial revision
+ *
+ */
+
+#ifndef isdn_h
+#define isdn_h
+
+#include <linux/ioctl.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_MAX_DRIVERS 16
+#define ISDN_MAX_CHANNELS 16
+#define ISDN_MINOR_B 0
+#define ISDN_MINOR_BMAX (ISDN_MAX_CHANNELS-1)
+#define ISDN_MINOR_CTRL ISDN_MAX_CHANNELS
+#define ISDN_MINOR_CTRLMAX (2*ISDN_MAX_CHANNELS-1)
+#define ISDN_MINOR_PPP (2*ISDN_MAX_CHANNELS)
+#define ISDN_MINOR_PPPMAX (3*ISDN_MAX_CHANNELS-1)
+#define ISDN_MINOR_STATUS 128
+
+/* 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)
+#define IIOCSETSET _IO('I',9)
+#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 IIOCNETALN _IO('I',32)
+#define IIOCNETDLN _IO('I',33)
+
+#define IIOCDBGVAR _IO('I',127)
+
+#define IIOCDRVCTL _IO('I',128)
+
+/* 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
+#define ISDN_NET_ENCAP_SYNCPPP 4
+
+/* 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_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_ANZREG 20 /* Number of Medem-Registers */
+#define ISDN_MSNLEN 20
+
+typedef struct {
+ char drvid[25];
+ unsigned long arg;
+} isdn_ioctl_struct;
+
+typedef struct {
+ unsigned long isdndev;
+ unsigned long atmodem[ISDN_MAX_CHANNELS];
+ unsigned long info[ISDN_MAX_CHANNELS];
+} debugvar_addr;
+
+typedef struct {
+ char name[10];
+ char phone[20];
+ 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 secure; /* Flag: Secure */
+ int callback; /* Flag: Callback */
+ int onhtime; /* Hangup-Timeout */
+ int charge; /* Charge-Units */
+ int chargehup; /* Flag: Charge-Hangup */
+ int l2_proto; /* Layer-2 protocol */
+ int l3_proto; /* Layer-3 protocol */
+ int p_encap; /* Encapsulation */
+ int ihup; /* Flag: Hangup-Timeout on incoming line */
+ int exclusive; /* Channel, if bound exclusive */
+ int slavedelay; /* Delay until slave starts up */
+} isdn_net_ioctl_cfg;
+
+#ifdef __KERNEL__
+
+#ifndef STANDALONE
+#include <linux/config.h>
+#endif
+#include <linux/errno.h>
+#include <linux/fs.h>
+#include <linux/major.h>
+#include <asm/segment.h>
+#include <asm/io.h>
+#include <linux/kernel.h>
+#include <linux/signal.h>
+#include <linux/malloc.h>
+#include <linux/mm.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>
+
+#ifdef CONFIG_ISDN_PPP
+
+#ifdef CONFIG_ISDN_PPP_VJ
+# include "/usr/src/linux/drivers/net/slhc.h"
+#endif
+
+#include <linux/ppp_defs.h>
+#include <linux/if_ppp.h>
+#include <linux/if_pppvar.h>
+
+#include <linux/isdn_ppp.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_NET(x) ((x & ISDN_USAGE_MASK)==ISDN_USAGE_NET)
+#define USG_OUTGOING(x) ((x & ISDN_USAGE_OUTGOING)==ISDN_USAGE_OUTGOING)
+
+/* Timer-delays and scheduling-flags */
+#define ISDN_TIMER_RES 3 /* Main Timer-Resolution */
+#define ISDN_TIMER_02SEC (HZ/ISDN_TIMER_RES/5) /* Slow-Timer1 (0.2 sec.) */
+#define ISDN_TIMER_1SEC (HZ/ISDN_TIMER_RES) /* Slow-Timer2 (1 sec.) */
+#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_IPPP 64
+#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)
+
+/* Timeout-Values for isdn_net_dial() */
+#define ISDN_TIMER_DTIMEOUT10 (10*HZ/(ISDN_TIMER_02SEC*ISDN_TIMER_RES))
+#define ISDN_TIMER_DTIMEOUT15 (15*HZ/(ISDN_TIMER_02SEC*ISDN_TIMER_RES))
+
+/* 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 /* callback incoming phonenumber */
+#define ISDN_NET_CLONE 0x08 /* clone a tmp interface when called */
+#define ISDN_NET_TMP 0x10 /* tmp interface until getting an IP */
+#define ISDN_NET_DYNAMIC 0x20 /* this link is dynamically allocted */
+#define ISDN_NET_MAGIC 0x49344C02 /* for paranoia-checking */
+
+/* Phone-list-element */
+typedef struct {
+ void *next;
+ char num[20];
+} isdn_net_phone;
+
+/* Local interface-data */
+typedef struct isdn_net_local_s {
+ ulong magic;
+ char name[10]; /* Name of device */
+ struct enet_statistics stats; /* Ethernet Statistics */
+ int isdn_device; /* Index to isdn-device */
+ int isdn_channel; /* Index to isdn-channel */
+ int ppp_minor; /* PPPD device minor 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 dialstate; /* State for dialing */
+ int dialretry; /* Counter for Dialout-retries */
+ int dialmax; /* Max. Nuber of Dial-retries */
+ char msn[ISDN_MSNLEN]; /* MSNs/EAZs for this interface */
+ int dtimer; /* Timeout-counter 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 */
+ int 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 */
+ 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 */
+ struct device *srobin; /* Ptr to Master device for slaves */
+ 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 device *master; /* Ptr to Master device for slaves */
+ struct 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 *first_skb; /* Ptr to skb that triggers dialing */
+ struct sk_buff *sav_skb; /* Ptr to skb, rejected by LL-driver*/
+ /* Ptr to orig. header_cache_bind */
+ void (*org_hcb)(struct hh_cache **, struct device *,
+ unsigned short, __u32);
+ /* Ptr to orig. header_cache_update */
+ void (*org_hcu)(struct hh_cache *, struct device *,
+ unsigned char *);
+} isdn_net_local;
+
+#ifdef CONFIG_ISDN_PPP
+struct ippp_bundle {
+ int mp_mrru; /* unused */
+ struct mpqueue *last; /* currently defined in isdn_net_dev */
+ int min; /* currently calculated 'on the fly' */
+ long next_num; /* we wanna see this seq.-number next */
+ struct sqqueue *sq;
+ int modify:1; /* set to 1 while modifying sqqueue */
+ int bundled:1; /* bundle active ? */
+};
+#endif
+
+/* the interface itself */
+typedef struct isdn_net_dev_s {
+ isdn_net_local local;
+ isdn_net_local *queue;
+ void *next; /* Pointer to next isdn-interface */
+ struct device dev; /* interface to upper levels */
+#ifdef CONFIG_ISDN_PPP
+ struct mpqueue *mp_last;
+ struct ippp_bundle ib;
+#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_PORT_16550A 4 /* Type of faked Hardware */
+#define ISDN_SERIAL_XMIT_SIZE 4000 /* Maximum bufsize for write */
+#define ISDN_SERIAL_TYPE_NORMAL 1 /* tty-type */
+#define ISDN_SERIAL_TYPE_CALLOUT 2 /* cua-type */
+
+/* Private data (similar to async_struct in <linux/serial.h>) */
+typedef struct {
+ int magic;
+ int flags; /* defined in tty.h */
+ int type; /* UART type */
+ struct tty_struct *tty;
+ int x_char; /* xon/xoff character */
+ int close_delay;
+ int MCR; /* Modem control 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 isdn_driver; /* Index to isdn-driver */
+ int isdn_channel; /* Index to isdn-channel */
+ int drv_index; /* Index to dev->usage */
+#if FUTURE
+ int send_outstanding;/* # of outstanding send-requests */
+#endif
+ int xmit_size; /* max. # of chars in xmit_buf */
+ int xmit_count; /* # of chars in xmit_buf */
+ u_char *xmit_buf; /* transmit-buffer */
+ struct termios normal_termios;
+ struct termios callout_termios;
+ struct wait_queue *open_wait;
+ struct wait_queue *close_wait;
+} modem_info;
+
+#define ISDN_MODEM_WINSIZE 8
+
+/* Private data of AT-command-interpreter */
+typedef struct {
+ u_char profile[ISDN_MODEM_ANZREG]; /* Modem-Regs. Profile 0 */
+ u_char mdmreg[ISDN_MODEM_ANZREG]; /* Modem-Registers */
+ char pmsn[ISDN_MSNLEN]; /* EAZ/MSNs Profile 0 */
+ char msn[ISDN_MSNLEN];/* EAZ/MSN */
+ int mdmcmdl; /* Length of Modem-Commandbuffer */
+ int pluscount; /* Counter for +++ sequence */
+ int lastplus; /* Timestamp of last + */
+ char mdmcmd[255]; /* Modem-Commandbuffer */
+} atemu;
+
+/* Descripion of one ISDN-tty */
+typedef struct {
+ int msr[ISDN_MAX_CHANNELS]; /* Modem-statusregister */
+ int mlr[ISDN_MAX_CHANNELS]; /* Line-statusregister */
+ int refcount; /* Number of opens */
+ int online[ISDN_MAX_CHANNELS]; /* B-Channel is up */
+ int dialing[ISDN_MAX_CHANNELS]; /* Dial in progress */
+ int rcvsched[ISDN_MAX_CHANNELS]; /* Receive needs schedule */
+ int ncarrier[ISDN_MAX_CHANNELS]; /* Output NO CARRIER */
+ struct tty_driver tty_modem; /* tty-device */
+ struct tty_driver cua_modem; /* cua-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];
+ atemu atmodem[ISDN_MAX_CHANNELS]; /* AT-Command-parser */
+ modem_info info[ISDN_MAX_CHANNELS]; /* Private data */
+} modem;
+
+/*======================= End of ISDN-tty stuff ============================*/
+
+/*======================= Start of sync-ppp stuff ==========================*/
+
+
+#define NUM_RCV_BUFFS 64
+#define PPP_HARD_HDR_LEN 4
+
+#define IPPP_OPEN 0x1
+#define IPPP_CONNECT 0x2
+#define IPPP_CLOSEWAIT 0x4
+#define IPPP_NOBLOCK 0x8
+
+#ifdef CONFIG_ISDN_PPP
+
+struct sqqueue {
+ struct sqqueue *next;
+ int sqno_start;
+ int sqno_end;
+ struct sk_buff *skb;
+ long timer;
+};
+
+struct mpqueue {
+ struct mpqueue *next;
+ struct mpqueue *last;
+ int sqno;
+ struct sk_buff *skb;
+ int BEbyte;
+ unsigned long time;
+};
+
+struct ippp_buf_queue {
+ struct ippp_buf_queue *next;
+ struct ippp_buf_queue *last;
+ char *buf; /* NULL here indicates end of queue */
+ int len;
+};
+
+struct ippp_struct {
+ struct ippp_struct *next_link;
+ int state;
+ struct ippp_buf_queue rq[NUM_RCV_BUFFS]; /* packet queue for isdn_ppp_read() */
+ struct ippp_buf_queue *first; /* pointer to (current) first packet */
+ struct ippp_buf_queue *last; /* pointer to (current) last used packet in queue */
+ struct wait_queue *wq;
+ struct wait_queue *wq1;
+ struct task_struct *tk;
+ unsigned int mpppcfg;
+ unsigned int pppcfg;
+ unsigned int mru;
+ unsigned int mpmru;
+ unsigned int mpmtu;
+ unsigned int maxcid;
+ isdn_net_local *lp;
+ int unit;
+ long last_link_seqno;
+ long mp_seqno;
+ long range;
+#ifdef CONFIG_ISDN_PPP_VJ
+ unsigned char *cbuf;
+ struct slcompress *slcomp;
+#endif
+};
+
+#endif
+
+/*======================== End of sync-ppp stuff ===========================*/
+
+/*======================= Start of general stuff ===========================*/
+
+/* Packet-queue-element */
+typedef struct pqueue {
+ char *next; /* Pointer to next packet */
+ short length; /* Packetlength */
+ short size; /* Allocated size */
+ u_char *rptr; /* Read-pointer for stream-reading */
+ u_char buffer[1]; /* The data (will be alloc'd) */
+} pqueue;
+
+typedef struct {
+ char *next;
+ char *private;
+} infostruct;
+
+/* Description of hardware-level-driver */
+typedef struct {
+ ulong flags; /* Flags */
+ int channels; /* Number of channels */
+ int reject_bus; /* Flag: Reject rejected call on bus*/
+ struct wait_queue *st_waitq; /* Wait-Queue for status-read's */
+ int maxbufsize; /* Maximum Buffersize supported */
+ unsigned long pktcount; /* Until now: unused */
+ int running; /* Flag: Protocolcode running */
+ int loaded; /* Flag: Driver loaded */
+ 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 */
+ pqueue **rpqueue; /* Pointers to start of Rcv-Queue */
+ struct wait_queue **rcv_waitq; /* Wait-Queues for B-Channel-Reads */
+ struct wait_queue **snd_waitq; /* Wait-Queue for B-Channel-Send's */
+ char msn2eaz[10][ISDN_MSNLEN]; /* Mapping-Table MSN->EAZ */
+} driver;
+
+/* Main driver-data */
+typedef struct isdn_devt {
+ 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 */
+ int tflags; /* Timer-Flags: */
+ /* see ISDN_TIMER_..defines */
+ int global_flags;
+ infostruct *infochain; /* List of open info-devs. */
+ struct wait_queue *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][20];/* Remote number of active ch.*/
+ int m_idx[ISDN_MAX_CHANNELS]; /* Index for mdm.... */
+ driver *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 */
+ modem 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 */
+} isdn_dev;
+
+extern isdn_dev *dev;
+
+/* Utility-Macros */
+#define MIN(a,b) ((a<b)?a:b)
+#define MAX(a,b) ((a>b)?a:b)
+
+#endif /* __KERNEL__ */
+#endif /* isdn_h */
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TCL-scripts by Sam Shen, slshen@lbl.gov
with Sam's (original) version of this