Sat Aug 6 00:39:29 2011

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

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