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| Rev | Author | Line No. | Line |
|---|---|---|---|
| 422 | giacomo | 1 | /* Linux ISDN subsystem, main header |
| 2 | * |
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| 3 | * Copyright 1994,95,96 by Fritz Elfert (fritz@isdn4linux.de) |
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| 4 | * Copyright 1995,96 by Thinking Objects Software GmbH Wuerzburg |
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| 5 | * Copyright 1995,96 by Michael Hipp (Michael.Hipp@student.uni-tuebingen.de) |
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| 6 | * Copyright 2000-2002 by Kai Germaschewski (kai@germaschewski.name) |
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| 7 | * |
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| 8 | * This software may be used and distributed according to the terms |
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| 9 | * of the GNU General Public License, incorporated herein by reference. |
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| 10 | * |
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| 11 | */ |
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| 12 | |||
| 13 | #ifndef __ISDN_H__ |
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| 14 | #define __ISDN_H__ |
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| 15 | |||
| 16 | #include <linux/ioctl.h> |
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| 17 | #include <linux/isdn/fsm.h> |
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| 18 | |||
| 19 | #ifdef CONFIG_COBALT_MICRO_SERVER |
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| 20 | /* Save memory */ |
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| 21 | #define ISDN_MAX_DRIVERS 2 |
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| 22 | #define ISDN_MAX_CHANNELS 8 |
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| 23 | #else |
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| 24 | #define ISDN_MAX_DRIVERS 32 |
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| 25 | #define ISDN_MAX_CHANNELS 64 |
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| 26 | #endif |
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| 27 | |||
| 28 | /* New ioctl-codes */ |
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| 29 | #define IIOCNETAIF _IO('I',1) |
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| 30 | #define IIOCNETDIF _IO('I',2) |
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| 31 | #define IIOCNETSCF _IO('I',3) |
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| 32 | #define IIOCNETGCF _IO('I',4) |
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| 33 | #define IIOCNETANM _IO('I',5) |
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| 34 | #define IIOCNETDNM _IO('I',6) |
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| 35 | #define IIOCNETGNM _IO('I',7) |
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| 36 | #define IIOCGETSET _IO('I',8) /* no longer supported */ |
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| 37 | #define IIOCSETSET _IO('I',9) /* no longer supported */ |
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| 38 | #define IIOCSETVER _IO('I',10) |
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| 39 | #define IIOCNETHUP _IO('I',11) |
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| 40 | #define IIOCSETGST _IO('I',12) |
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| 41 | #define IIOCSETBRJ _IO('I',13) |
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| 42 | #define IIOCSIGPRF _IO('I',14) |
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| 43 | #define IIOCGETPRF _IO('I',15) |
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| 44 | #define IIOCSETPRF _IO('I',16) |
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| 45 | #define IIOCGETMAP _IO('I',17) |
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| 46 | #define IIOCSETMAP _IO('I',18) |
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| 47 | #define IIOCNETASL _IO('I',19) |
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| 48 | #define IIOCNETDIL _IO('I',20) |
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| 49 | #define IIOCGETCPS _IO('I',21) |
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| 50 | #define IIOCGETDVR _IO('I',22) |
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| 51 | #define IIOCNETLCR _IO('I',23) /* dwabc ioctl for LCR from isdnlog */ |
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| 52 | #define IIOCNETDWRSET _IO('I',24) /* dwabc ioctl to reset abc-values to default on a net-interface */ |
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| 53 | |||
| 54 | #define IIOCNETALN _IO('I',32) |
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| 55 | #define IIOCNETDLN _IO('I',33) |
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| 56 | |||
| 57 | #define IIOCNETGPN _IO('I',34) |
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| 58 | |||
| 59 | #define IIOCDBGVAR _IO('I',127) |
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| 60 | |||
| 61 | #define IIOCDRVCTL _IO('I',128) |
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| 62 | |||
| 63 | /* cisco hdlck device private ioctls */ |
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| 64 | #define SIOCGKEEPPERIOD (SIOCDEVPRIVATE + 0) |
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| 65 | #define SIOCSKEEPPERIOD (SIOCDEVPRIVATE + 1) |
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| 66 | #define SIOCGDEBSERINT (SIOCDEVPRIVATE + 2) |
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| 67 | #define SIOCSDEBSERINT (SIOCDEVPRIVATE + 3) |
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| 68 | |||
| 69 | /* Packet encapsulations for net-interfaces */ |
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| 70 | #define ISDN_NET_ENCAP_ETHER 0 |
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| 71 | #define ISDN_NET_ENCAP_RAWIP 1 |
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| 72 | #define ISDN_NET_ENCAP_IPTYP 2 |
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| 73 | #define ISDN_NET_ENCAP_CISCOHDLC 3 /* Without SLARP and keepalive */ |
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| 74 | #define ISDN_NET_ENCAP_SYNCPPP 4 |
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| 75 | #define ISDN_NET_ENCAP_UIHDLC 5 |
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| 76 | #define ISDN_NET_ENCAP_CISCOHDLCK 6 /* With SLARP and keepalive */ |
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| 77 | #define ISDN_NET_ENCAP_X25IFACE 7 /* Documentation/networking/x25-iface.txt*/ |
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| 78 | #define ISDN_NET_ENCAP_NR 8 |
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| 79 | |||
| 80 | /* Facility which currently uses an ISDN-channel */ |
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| 81 | #define ISDN_USAGE_NONE 0 |
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| 82 | #define ISDN_USAGE_RAW 1 |
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| 83 | #define ISDN_USAGE_MODEM 2 |
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| 84 | #define ISDN_USAGE_NET 3 |
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| 85 | #define ISDN_USAGE_VOICE 4 |
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| 86 | #define ISDN_USAGE_FAX 5 |
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| 87 | #define ISDN_USAGE_MASK 7 /* Mask to get plain usage */ |
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| 88 | #define ISDN_USAGE_DISABLED 32 /* This bit is set, if channel is disabled */ |
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| 89 | #define ISDN_USAGE_EXCLUSIVE 64 /* This bit is set, if channel is exclusive */ |
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| 90 | #define ISDN_USAGE_OUTGOING 128 /* This bit is set, if channel is outgoing */ |
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| 91 | |||
| 92 | #define ISDN_MODEM_NUMREG 24 /* Number of Modem-Registers */ |
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| 93 | #define ISDN_LMSNLEN 255 /* Length of tty's Listen-MSN string */ |
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| 94 | #define ISDN_CMSGLEN 50 /* Length of CONNECT-Message to add for Modem */ |
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| 95 | |||
| 96 | #define ISDN_MSNLEN 32 |
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| 97 | #define NET_DV 0x06 /* Data version for isdn_net_ioctl_cfg */ |
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| 98 | #define TTY_DV 0x06 /* Data version for iprofd etc. */ |
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| 99 | |||
| 100 | #define INF_DV 0x01 /* Data version for /dev/isdninfo */ |
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| 101 | |||
| 102 | typedef struct { |
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| 103 | char drvid[25]; |
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| 104 | unsigned long arg; |
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| 105 | } isdn_ioctl_struct; |
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| 106 | |||
| 107 | typedef struct { |
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| 108 | char name[10]; |
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| 109 | char phone[ISDN_MSNLEN]; |
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| 110 | int outgoing; |
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| 111 | } isdn_net_ioctl_phone; |
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| 112 | |||
| 113 | typedef struct { |
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| 114 | char name[10]; /* Name of interface */ |
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| 115 | char master[10]; /* Name of Master for Bundling */ |
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| 116 | char slave[10]; /* Name of Slave for Bundling */ |
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| 117 | char eaz[256]; /* EAZ/MSN */ |
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| 118 | char drvid[25]; /* DriverId for Bindings */ |
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| 119 | int onhtime; /* Hangup-Timeout */ |
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| 120 | int charge; /* Charge-Units */ |
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| 121 | int l2_proto; /* Layer-2 protocol */ |
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| 122 | int l3_proto; /* Layer-3 protocol */ |
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| 123 | int p_encap; /* Encapsulation */ |
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| 124 | int exclusive; /* Channel, if bound exclusive */ |
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| 125 | int dialmax; /* Dial Retry-Counter */ |
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| 126 | int slavedelay; /* Delay until slave starts up */ |
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| 127 | int cbdelay; /* Delay before Callback */ |
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| 128 | int chargehup; /* Flag: Charge-Hangup */ |
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| 129 | int ihup; /* Flag: Hangup-Timeout on incoming line */ |
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| 130 | int secure; /* Flag: Secure */ |
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| 131 | int callback; /* Flag: Callback */ |
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| 132 | int cbhup; /* Flag: Reject Call before Callback */ |
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| 133 | int pppbind; /* ippp device for bindings */ |
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| 134 | int chargeint; /* Use fixed charge interval length */ |
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| 135 | int triggercps; /* BogoCPS needed for triggering slave */ |
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| 136 | int dialtimeout; /* Dial-Timeout */ |
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| 137 | int dialwait; /* Time to wait after failed dial */ |
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| 138 | int dialmode; /* Flag: off / on / auto */ |
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| 139 | } isdn_net_ioctl_cfg; |
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| 140 | |||
| 141 | #define ISDN_NET_DIALMODE_MASK 0xC0 /* bits for status */ |
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| 142 | #define ISDN_NET_DM_OFF 0x00 /* this interface is stopped */ |
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| 143 | #define ISDN_NET_DM_MANUAL 0x40 /* this interface is on (manual) */ |
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| 144 | #define ISDN_NET_DM_AUTO 0x80 /* this interface is autodial */ |
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| 145 | #define ISDN_NET_DIALMODE(x) ((&(x))->flags & ISDN_NET_DIALMODE_MASK) |
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| 146 | |||
| 147 | #ifdef __KERNEL__ |
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| 148 | |||
| 149 | #include <linux/config.h> |
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| 150 | #include <linux/errno.h> |
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| 151 | #include <linux/fs.h> |
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| 152 | #include <linux/major.h> |
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| 153 | #include <asm/io.h> |
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| 154 | #include <linux/kernel.h> |
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| 155 | #include <linux/signal.h> |
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| 156 | #include <linux/slab.h> |
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| 157 | #include <linux/timer.h> |
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| 158 | #include <linux/wait.h> |
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| 159 | #include <linux/tty.h> |
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| 160 | #include <linux/tty_flip.h> |
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| 161 | #include <linux/serial_reg.h> |
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| 162 | #include <linux/fcntl.h> |
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| 163 | #include <linux/types.h> |
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| 164 | #include <linux/interrupt.h> |
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| 165 | #include <linux/ip.h> |
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| 166 | #include <linux/in.h> |
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| 167 | #include <linux/netdevice.h> |
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| 168 | #include <linux/etherdevice.h> |
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| 169 | #include <linux/skbuff.h> |
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| 170 | #include <linux/tcp.h> |
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| 171 | |||
| 172 | #define ISDN_TTY_MAJOR 43 |
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| 173 | #define ISDN_TTYAUX_MAJOR 44 |
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| 174 | #define ISDN_MAJOR 45 |
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| 175 | |||
| 176 | /* The minor-devicenumbers for Channel 0 and 1 are used as arguments for |
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| 177 | * physical Channel-Mapping, so they MUST NOT be changed without changing |
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| 178 | * the correspondent code in isdn.c |
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| 179 | */ |
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| 180 | |||
| 181 | #define ISDN_MINOR_CTRL 64 |
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| 182 | #define ISDN_MINOR_CTRLMAX (64 + (ISDN_MAX_CHANNELS-1)) |
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| 183 | #define ISDN_MINOR_PPP 128 |
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| 184 | #define ISDN_MINOR_PPPMAX (128 + (ISDN_MAX_CHANNELS-1)) |
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| 185 | #define ISDN_MINOR_STATUS 255 |
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| 186 | |||
| 187 | #ifdef CONFIG_ISDN_PPP |
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| 188 | |||
| 189 | #ifdef CONFIG_ISDN_PPP_VJ |
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| 190 | # include <net/slhc_vj.h> |
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| 191 | #endif |
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| 192 | |||
| 193 | #include <linux/ppp_defs.h> |
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| 194 | #include <linux/if_ppp.h> |
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| 195 | #include <linux/if_pppvar.h> |
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| 196 | |||
| 197 | #include <linux/isdn_ppp.h> |
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| 198 | #endif |
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| 199 | |||
| 200 | #ifdef CONFIG_ISDN_X25 |
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| 201 | # include <linux/concap.h> |
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| 202 | #endif |
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| 203 | |||
| 204 | #include <linux/isdnif.h> |
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| 205 | |||
| 206 | #define ISDN_DRVIOCTL_MASK 0x7f /* Mask for Device-ioctl */ |
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| 207 | |||
| 208 | /* Until now unused */ |
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| 209 | #define ISDN_SERVICE_VOICE 1 |
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| 210 | #define ISDN_SERVICE_AB 1<<1 |
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| 211 | #define ISDN_SERVICE_X21 1<<2 |
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| 212 | #define ISDN_SERVICE_G4 1<<3 |
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| 213 | #define ISDN_SERVICE_BTX 1<<4 |
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| 214 | #define ISDN_SERVICE_DFUE 1<<5 |
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| 215 | #define ISDN_SERVICE_X25 1<<6 |
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| 216 | #define ISDN_SERVICE_TTX 1<<7 |
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| 217 | #define ISDN_SERVICE_MIXED 1<<8 |
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| 218 | #define ISDN_SERVICE_FW 1<<9 |
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| 219 | #define ISDN_SERVICE_GTEL 1<<10 |
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| 220 | #define ISDN_SERVICE_BTXN 1<<11 |
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| 221 | #define ISDN_SERVICE_BTEL 1<<12 |
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| 222 | |||
| 223 | /* Macros checking plain usage */ |
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| 224 | #define USG_NONE(x) ((x & ISDN_USAGE_MASK)==ISDN_USAGE_NONE) |
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| 225 | #define USG_RAW(x) ((x & ISDN_USAGE_MASK)==ISDN_USAGE_RAW) |
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| 226 | #define USG_MODEM(x) ((x & ISDN_USAGE_MASK)==ISDN_USAGE_MODEM) |
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| 227 | #define USG_VOICE(x) ((x & ISDN_USAGE_MASK)==ISDN_USAGE_VOICE) |
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| 228 | #define USG_NET(x) ((x & ISDN_USAGE_MASK)==ISDN_USAGE_NET) |
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| 229 | #define USG_FAX(x) ((x & ISDN_USAGE_MASK)==ISDN_USAGE_FAX) |
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| 230 | #define USG_OUTGOING(x) ((x & ISDN_USAGE_OUTGOING)==ISDN_USAGE_OUTGOING) |
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| 231 | #define USG_MODEMORVOICE(x) (((x & ISDN_USAGE_MASK)==ISDN_USAGE_MODEM) || \ |
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| 232 | ((x & ISDN_USAGE_MASK)==ISDN_USAGE_VOICE) ) |
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| 233 | |||
| 234 | /* GLOBAL_FLAGS */ |
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| 235 | #define ISDN_GLOBAL_STOPPED 1 |
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| 236 | |||
| 237 | /*======================= Start of ISDN-tty stuff ===========================*/ |
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| 238 | |||
| 239 | #define ISDN_ASYNC_MAGIC 0x49344C01 /* for paranoia-checking */ |
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| 240 | #define ISDN_ASYNC_INITIALIZED 0x80000000 /* port was initialized */ |
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| 241 | #define ISDN_ASYNC_CALLOUT_ACTIVE 0x40000000 /* Call out device active */ |
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| 242 | #define ISDN_ASYNC_NORMAL_ACTIVE 0x20000000 /* Normal device active */ |
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| 243 | #define ISDN_ASYNC_CLOSING 0x08000000 /* Serial port is closing */ |
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| 244 | #define ISDN_ASYNC_CTS_FLOW 0x04000000 /* Do CTS flow control */ |
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| 245 | #define ISDN_ASYNC_CHECK_CD 0x02000000 /* i.e., CLOCAL */ |
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| 246 | #define ISDN_ASYNC_HUP_NOTIFY 0x0001 /* Notify tty on hangups/closes */ |
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| 247 | #define ISDN_ASYNC_SESSION_LOCKOUT 0x0100 /* Lock cua opens on session */ |
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| 248 | #define ISDN_ASYNC_PGRP_LOCKOUT 0x0200 /* Lock cua opens on pgrp */ |
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| 249 | #define ISDN_ASYNC_CALLOUT_NOHUP 0x0400 /* No hangup for cui */ |
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| 250 | #define ISDN_ASYNC_SPLIT_TERMIOS 0x0008 /* Sep. termios for dialin/out */ |
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| 251 | #define ISDN_SERIAL_XMIT_SIZE 1024 /* Default bufsize for write */ |
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| 252 | #define ISDN_SERIAL_XMIT_MAX 4000 /* Maximum bufsize for write */ |
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| 253 | |||
| 254 | #ifdef CONFIG_ISDN_AUDIO |
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| 255 | /* For using sk_buffs with audio we need some private variables |
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| 256 | * within each sk_buff. For this purpose, we declare a struct here, |
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| 257 | * and put it always at skb->head. A few macros help accessing the |
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| 258 | * variables. Of course, we need to check skb_headroom prior to |
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| 259 | * any access. |
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| 260 | */ |
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| 261 | typedef struct _isdnaudio_header { |
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| 262 | unsigned short dle_count; |
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| 263 | unsigned char lock; |
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| 264 | } isdnaudio_header; |
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| 265 | |||
| 266 | #define ISDN_AUDIO_SKB_DLECOUNT(skb) (((isdnaudio_header*)skb->head)->dle_count) |
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| 267 | #define ISDN_AUDIO_SKB_LOCK(skb) (((isdnaudio_header*)skb->head)->lock) |
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| 268 | #endif |
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| 269 | |||
| 270 | /* Private data of AT-command-interpreter */ |
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| 271 | typedef struct atemu { |
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| 272 | u_char profile[ISDN_MODEM_NUMREG]; /* Modem-Regs. Profile 0 */ |
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| 273 | u_char mdmreg[ISDN_MODEM_NUMREG]; /* Modem-Registers */ |
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| 274 | char pmsn[ISDN_MSNLEN]; /* EAZ/MSNs Profile 0 */ |
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| 275 | char msn[ISDN_MSNLEN]; /* EAZ/MSN */ |
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| 276 | char plmsn[ISDN_LMSNLEN]; /* Listening MSNs Profile 0 */ |
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| 277 | char lmsn[ISDN_LMSNLEN]; /* Listening MSNs */ |
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| 278 | char cpn[ISDN_MSNLEN]; /* CalledPartyNumber on incoming call */ |
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| 279 | char connmsg[ISDN_CMSGLEN]; /* CONNECT-Msg from HL-Driver */ |
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| 280 | #ifdef CONFIG_ISDN_AUDIO |
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| 281 | u_char vpar[10]; /* Voice-parameters */ |
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| 282 | int lastDLE; /* Flag for voice-coding: DLE seen */ |
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| 283 | #endif |
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| 284 | int mdmcmdl; /* Length of Modem-Commandbuffer */ |
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| 285 | int pluscount; /* Counter for +++ sequence */ |
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| 286 | unsigned long lastplus; /* Timestamp of last + */ |
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| 287 | char mdmcmd[255]; /* Modem-Commandbuffer */ |
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| 288 | unsigned int charge; /* Charge units of current connection */ |
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| 289 | } atemu; |
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| 290 | |||
| 291 | /* Private data (similar to async_struct in <linux/serial.h>) */ |
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| 292 | typedef struct modem_info { |
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| 293 | int magic; |
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| 294 | struct module *owner; |
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| 295 | int flags; /* defined in tty.h */ |
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| 296 | int x_char; /* xon/xoff character */ |
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| 297 | int mcr; /* Modem control register */ |
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| 298 | int msr; /* Modem status register */ |
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| 299 | int lsr; /* Line status register */ |
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| 300 | int line; |
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| 301 | int count; /* # of fd on device */ |
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| 302 | int blocked_open; /* # of blocked opens */ |
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| 303 | int online; /* 1 = B-Channel is up, drop data */ |
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| 304 | /* 2 = B-Channel is up, deliver d.*/ |
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| 305 | int dialing; /* Dial in progress or ATA */ |
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| 306 | int rcvsched; /* Receive needs schedule */ |
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| 307 | struct isdn_slot *isdn_slot; /* Ptr to isdn-driver/channel */ |
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| 308 | struct sk_buff_head rpqueue; /* Queue of recv'd packets */ |
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| 309 | int rcvcount; /* Byte-counters for B rx */ |
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| 310 | int ncarrier; /* Flag: schedule NO CARRIER */ |
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| 311 | unsigned char last_cause[8]; /* Last cause message */ |
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| 312 | unsigned char last_num[ISDN_MSNLEN]; |
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| 313 | /* Last phone-number */ |
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| 314 | unsigned char last_l2; /* Last layer-2 protocol */ |
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| 315 | unsigned char last_si; /* Last service */ |
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| 316 | unsigned char last_lhup; /* Last hangup local? */ |
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| 317 | unsigned char last_dir; /* Last direction (in or out) */ |
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| 318 | struct timer_list nc_timer; /* Timer for delayed NO CARRIER */ |
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| 319 | int send_outstanding;/* # of outstanding send-requests */ |
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| 320 | int xmit_size; /* max. # of chars in xmit_buf */ |
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| 321 | int xmit_count; /* # of chars in xmit_buf */ |
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| 322 | unsigned char *xmit_buf; /* transmit buffer */ |
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| 323 | struct sk_buff_head xmit_queue; /* transmit queue */ |
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| 324 | atomic_t xmit_lock; /* Semaphore for isdn_tty_write */ |
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| 325 | #ifdef CONFIG_ISDN_AUDIO |
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| 326 | unsigned long DLEflag; /* Insert DLE at next read */ |
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| 327 | int vonline; /* Voice-channel status */ |
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| 328 | /* Bit 0 = recording */ |
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| 329 | /* Bit 1 = playback */ |
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| 330 | /* Bit 2 = playback, DLE-ETX seen */ |
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| 331 | struct sk_buff_head dtmf_queue; /* queue for dtmf results */ |
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| 332 | void *adpcms; /* state for adpcm decompression */ |
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| 333 | void *adpcmr; /* state for adpcm compression */ |
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| 334 | void *dtmf_state; /* state for dtmf decoder */ |
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| 335 | void *silence_state; /* state for silence detection */ |
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| 336 | #endif |
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| 337 | #ifdef CONFIG_ISDN_TTY_FAX |
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| 338 | struct T30_s *fax; /* T30 Fax Group 3 data/interface */ |
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| 339 | int faxonline; /* Fax-channel status */ |
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| 340 | #endif |
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| 341 | struct tty_struct *tty; /* Pointer to corresponding tty */ |
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| 342 | atemu emu; /* AT-emulator data */ |
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| 343 | struct timer_list escape_timer; /* to recognize +++ escape */ |
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| 344 | struct timer_list ring_timer; /* for writing 'RING' responses */ |
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| 345 | struct timer_list connect_timer; /* waiting for CONNECT */ |
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| 346 | struct timer_list read_timer; /* read incoming data */ |
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| 347 | wait_queue_head_t open_wait, close_wait; |
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| 348 | struct semaphore write_sem; |
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| 349 | } modem_info; |
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| 350 | |||
| 351 | #define ISDN_MODEM_WINSIZE 8 |
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| 352 | |||
| 353 | /*======================= End of ISDN-tty stuff ============================*/ |
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| 354 | |||
| 355 | /*======================== Start of V.110 stuff ============================*/ |
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| 356 | #define V110_BUFSIZE 1024 |
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| 357 | |||
| 358 | typedef struct { |
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| 359 | int nbytes; /* 1 Matrixbyte -> nbytes in stream */ |
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| 360 | int nbits; /* Number of used bits in streambyte */ |
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| 361 | unsigned char key; /* Bitmask in stream eg. 11 (nbits=2) */ |
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| 362 | int decodelen; /* Amount of data in decodebuf */ |
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| 363 | int SyncInit; /* Number of sync frames to send */ |
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| 364 | unsigned char *OnlineFrame; /* Precalculated V110 idle frame */ |
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| 365 | unsigned char *OfflineFrame; /* Precalculated V110 sync Frame */ |
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| 366 | int framelen; /* Length of frames */ |
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| 367 | int skbuser; /* Number of unacked userdata skbs */ |
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| 368 | int skbidle; /* Number of unacked idle/sync skbs */ |
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| 369 | int introducer; /* Local vars for decoder */ |
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| 370 | int dbit; |
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| 371 | unsigned char b; |
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| 372 | int skbres; /* space to reserve in outgoing skb */ |
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| 373 | int maxsize; /* maxbufsize of lowlevel driver */ |
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| 374 | unsigned char *encodebuf; /* temporary buffer for encoding */ |
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| 375 | unsigned char decodebuf[V110_BUFSIZE]; /* incomplete V110 matrices */ |
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| 376 | } isdn_v110_stream; |
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| 377 | |||
| 378 | /*========================= End of V.110 stuff =============================*/ |
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| 379 | |||
| 380 | /*======================= Start of general stuff ===========================*/ |
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| 381 | |||
| 382 | typedef struct { |
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| 383 | char *next; |
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| 384 | char *private; |
||
| 385 | } infostruct; |
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| 386 | |||
| 387 | /* Main driver-data */ |
||
| 388 | typedef struct _isdn_dev_t { |
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| 389 | unsigned short flags; /* Bitmapped Flags: */ |
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| 390 | int channels; /* Current number of channels */ |
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| 391 | int net_verbose; /* Verbose-Flag */ |
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| 392 | int modempoll; /* Flag: tty-read active */ |
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| 393 | int tflags; /* Timer-Flags: */ |
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| 394 | /* see ISDN_TIMER_..defines */ |
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| 395 | int global_flags; |
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| 396 | infostruct *infochain; /* List of open info-devs. */ |
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| 397 | wait_queue_head_t info_waitq; /* Wait-Queue for isdninfo */ |
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| 398 | struct task_struct *profd; /* For iprofd */ |
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| 399 | struct semaphore sem; /* serialize list access*/ |
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| 400 | unsigned long global_features; |
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| 401 | } isdn_dev_t; |
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| 402 | |||
| 403 | extern isdn_dev_t *get_isdn_dev(void); |
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| 404 | |||
| 405 | #endif /* __KERNEL__ */ |
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| 406 | |||
| 407 | #endif /* __ISDN_H__ */ |