drivers/isdn/mISDN/l1oip.h

   1 /*
   2  * see notice in l1oip.c
   3  */
   4
   5 /* debugging */
   6 #define DEBUG_L1OIP_INIT        0x00010000
   7 #define DEBUG_L1OIP_SOCKET      0x00020000
   8 #define DEBUG_L1OIP_MGR         0x00040000
   9 #define DEBUG_L1OIP_MSG         0x00080000
  10
  11 /* enable to disorder received bchannels by sequence 2143658798... */
  12 /*
  13   #define REORDER_DEBUG
  14 */
  15
  16 /* frames */
  17 #define L1OIP_MAX_LEN           2048            /* max packet size form l2 */
  18 #define L1OIP_MAX_PERFRAME      1400            /* max data size in one frame */
  19
  20
  21 /* timers */
  22 #define L1OIP_KEEPALIVE         15
  23 #define L1OIP_TIMEOUT           65
  24
  25
  26 /* socket */
  27 #define L1OIP_DEFAULTPORT       931
  28
  29
  30 /* channel structure */
  31 struct l1oip_chan {
  32         struct dchannel         *dch;
  33         struct bchannel         *bch;
  34         u32                     tx_counter;     /* counts xmit bytes/packets */
  35         u32                     rx_counter;     /* counts recv bytes/packets */
  36         u32                     codecstate;     /* used by codec to save data */
  37 #ifdef REORDER_DEBUG
  38         int                     disorder_flag;
  39         struct sk_buff          *disorder_skb;
  40         u32                     disorder_cnt;
  41 #endif
  42 };
  43
  44
  45 /* card structure */
  46 struct l1oip {
  47         struct list_head        list;
  48
  49         /* card */
  50         int                     registered;     /* if registered with mISDN */
  51         char                    name[MISDN_MAX_IDLEN];
  52         int                     idx;            /* card index */
  53         int                     pri;            /* 1=pri, 0=bri */
  54         int                     d_idx;          /* current dchannel number */
  55         int                     b_num;          /* number of bchannels */
  56         u32                     id;             /* id of connection */
  57         int                     ondemand;       /* if transmis. is on demand */
  58         int                     bundle;         /* bundle channels in one frm */
  59         int                     codec;          /* codec to use for transmis. */
  60         int                     limit;          /* limit number of bchannels */
  61
  62         /* timer */
  63         struct timer_list       keep_tl;
  64         struct timer_list       timeout_tl;
  65         int                     timeout_on;
  66         struct work_struct      workq;
  67
  68         /* socket */
  69         struct socket           *socket;        /* if set, socket is created */
  70         struct completion       socket_complete;/* completion of sock thread */
  71         struct task_struct      *socket_thread;
  72         spinlock_t              socket_lock;    /* access sock outside thread */
  73         u32                     remoteip;       /* if all set, ip is assigned */
  74         u16                     localport;      /* must always be set */
  75         u16                     remoteport;     /* must always be set */
  76         struct sockaddr_in      sin_local;      /* local socket name */
  77         struct sockaddr_in      sin_remote;     /* remote socket name */
  78         struct msghdr           sendmsg;        /* ip message to send */
  79         struct kvec             sendiov;        /* iov for message */
  80
  81         /* frame */
  82         struct l1oip_chan       chan[128];      /* channel instances */
  83 };
  84
  85 extern int l1oip_law_to_4bit(u8 *data, int len, u8 *result, u32 *state);
  86 extern int l1oip_4bit_to_law(u8 *data, int len, u8 *result);
  87 extern int l1oip_alaw_to_ulaw(u8 *data, int len, u8 *result);
  88 extern int l1oip_ulaw_to_alaw(u8 *data, int len, u8 *result);
  89 extern void l1oip_4bit_free(void);
  90 extern int l1oip_4bit_alloc(int ulaw);