Thu Apr 28 2011 16:56:47

Asterisk developer's documentation


isdn_lib_intern.h

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00001 #ifndef ISDN_LIB_INTERN
00002 #define ISDN_LIB_INTERN
00003 
00004 
00005 #include <mISDNuser/mISDNlib.h>
00006 #include <mISDNuser/isdn_net.h>
00007 #include <mISDNuser/l3dss1.h>
00008 #include <mISDNuser/net_l3.h>
00009 
00010 #include <pthread.h>
00011 
00012 #include "isdn_lib.h"
00013 
00014 #ifndef MISDNUSER_VERSION_CODE
00015 #error "You need a newer version of mISDNuser ..."
00016 #elif MISDNUSER_VERSION_CODE < MISDNUSER_VERSION(1, 0, 3)
00017 #error "You need a newer version of mISDNuser ..."
00018 #endif
00019 
00020 
00021 #define QI_ELEMENT(a) a.off
00022 
00023 
00024 #ifndef mISDNUSER_HEAD_SIZE
00025 
00026 #define mISDNUSER_HEAD_SIZE (sizeof(mISDNuser_head_t))
00027 /*#define mISDNUSER_HEAD_SIZE (sizeof(mISDN_head_t))*/
00028 #endif
00029 
00030 
00031 #if 0
00032 ibuffer_t *astbuf;      /* Not used */
00033 ibuffer_t *misdnbuf; /* Not used */
00034 #endif
00035 
00036 struct send_lock {
00037    pthread_mutex_t lock;
00038 };
00039 
00040 
00041 struct isdn_msg {
00042    unsigned long misdn_msg;
00043 
00044    enum layer_e layer;
00045    enum event_e event;
00046 
00047    void (*msg_parser)(struct isdn_msg *msgs, msg_t *msg, struct misdn_bchannel *bc, int nt);
00048    msg_t *(*msg_builder)(struct isdn_msg *msgs, struct misdn_bchannel *bc, int nt);
00049    char *info;
00050 } ;
00051 
00052 /* for isdn_msg_parser.c */
00053 msg_t *create_l3msg(int prim, int mt, int dinfo , int size, int nt);
00054 
00055 
00056 
00057 struct misdn_stack {
00058    /** is first element because &nst equals &mISDNlist **/
00059    net_stack_t nst;
00060    manager_t mgr;
00061    pthread_mutex_t nstlock;
00062 
00063    /*! \brief Stack struct critical section lock. */
00064    pthread_mutex_t st_lock;
00065 
00066    /*! \brief D Channel mISDN driver stack ID (Parent stack ID) */
00067    int d_stid;
00068 
00069    /*! /brief Number of B channels supported by this port */
00070    int b_num;
00071 
00072    /*! \brief B Channel mISDN driver stack IDs (Child stack IDs) */
00073    int b_stids[MAX_BCHANS + 1];
00074 
00075    /*! \brief TRUE if Point-To-Point(PTP) (Point-To-Multipoint(PTMP) otherwise) */
00076    int ptp;
00077 
00078    /*! \brief Number of consecutive times PTP Layer 2 declared down */
00079    int l2upcnt;
00080 
00081    int l2_id;  /* Not used */
00082 
00083    /*! \brief Lower layer mISDN ID (addr) (Layer 1/3) */
00084    int lower_id;
00085 
00086    /*! \brief Upper layer mISDN ID (addr) (Layer 2/4) */
00087    int upper_id;
00088 
00089    /*! \brief TRUE if port is blocked */
00090    int blocked;
00091 
00092    /*! \brief TRUE if Layer 2 is UP */
00093    int l2link;
00094 
00095    time_t l2establish;  /* Not used */
00096 
00097    /*! \brief TRUE if Layer 1 is UP */
00098    int l1link;
00099 
00100    /*! \brief TRUE if restart has been sent to the other side after stack startup */
00101    int restart_sent;
00102 
00103    /*! \brief mISDN device handle returned by mISDN_open() */
00104    int midev;
00105 
00106    /*! \brief TRUE if NT side of protocol (TE otherwise) */
00107    int nt;
00108 
00109    /*! \brief TRUE if ISDN-PRI (ISDN-BRI otherwise) */
00110    int pri;
00111 
00112    /*! \brief CR Process ID allocation table.  TRUE if ID allocated */
00113    int procids[0x100+1];
00114 
00115    /*! \brief Queue of Event messages to send to mISDN */
00116    msg_queue_t downqueue;
00117    msg_queue_t upqueue; /* No code puts anything on this queue */
00118    int busy;   /* Not used */
00119 
00120    /*! \brief Logical Layer 1 port associated with this stack */
00121    int port;
00122 
00123    /*! \brief B Channel record pool array */
00124    struct misdn_bchannel bc[MAX_BCHANS + 1];
00125 
00126    struct misdn_bchannel* bc_list;  /* Not used */
00127 
00128    /*! \brief Array of B channels in use (a[0] = B1).  TRUE if B channel in use */
00129    int channels[MAX_BCHANS + 1];
00130 
00131    /*! \brief List of held channels */
00132    struct misdn_bchannel *holding;
00133 
00134    /*! \brief Next stack in the list of stacks */
00135    struct misdn_stack *next;
00136 };
00137 
00138 
00139 struct misdn_stack* get_stack_by_bc(struct misdn_bchannel *bc);
00140 
00141 int isdn_msg_get_index(struct isdn_msg msgs[], msg_t *frm, int nt);
00142 enum event_e isdn_msg_get_event(struct isdn_msg msgs[], msg_t *frm, int nt);
00143 int isdn_msg_parse_event(struct isdn_msg msgs[], msg_t *frm, struct misdn_bchannel *bc, int nt);
00144 char * isdn_get_info(struct isdn_msg msgs[], enum event_e event, int nt);
00145 msg_t * isdn_msg_build_event(struct isdn_msg msgs[], struct misdn_bchannel *bc, enum event_e event, int nt);
00146 int isdn_msg_get_index_by_event(struct isdn_msg msgs[], enum event_e event, int nt);
00147 char * isdn_msg_get_info(struct isdn_msg msgs[], msg_t *msg, int nt);
00148 
00149 
00150 #endif