LXR linux/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 */
  31struct 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 */
  46struct 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
  85extern int l1oip_law_to_4bit(u8 *data, int len, u8 *result, u32 *state);
  86extern int l1oip_4bit_to_law(u8 *data, int len, u8 *result);
  87extern int l1oip_alaw_to_ulaw(u8 *data, int len, u8 *result);
  88extern int l1oip_ulaw_to_alaw(u8 *data, int len, u8 *result);
  89extern void l1oip_4bit_free(void);
  90extern int l1oip_4bit_alloc(int ulaw);
  91
  92