/* * Copyright (c) 1997, 1999 Hellmuth Michaelis. All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. * *--------------------------------------------------------------------------- * * i4b_l4if.c - Layer 3 interface to Layer 4 * ------------------------------------------- * * $Id: i4b_l4if.c,v 1.22 1999/12/13 21:25:27 hm Exp $ * * $FreeBSD$ * * last edit-date: [Mon Dec 13 22:05:25 1999] * *---------------------------------------------------------------------------*/ #ifdef __FreeBSD__ #include "i4bq931.h" #else #define NI4BQ931 1 #endif #if NI4BQ931 > 0 #include #if defined(__FreeBSD__) #include #else #include #endif #include #include #include #include #ifdef __FreeBSD__ #include #include #include #else #include #include #include #endif #include #include #include #include #include #include #include #include #include extern void isic_settrace(int unit, int val); /*XXX*/ extern int isic_gettrace(int unit); /*XXX*/ static void n_connect_request(u_int cdid); static void n_connect_response(u_int cdid, int response, int cause); static void n_disconnect_request(u_int cdid, int cause); static void n_alert_request(u_int cdid); static void n_mgmt_command(int unit, int cmd, int parm); /*---------------------------------------------------------------------------* * i4b_mdl_status_ind - status indication from lower layers *---------------------------------------------------------------------------*/ int i4b_mdl_status_ind(int unit, int status, int parm) { int sendup; int i; DBGL3(L3_MSG, "i4b_mdl_status_ind", ("unit = %d, status = %d, parm = %d\n", unit, status, parm)); switch(status) { case STI_ATTACH: DBGL3(L3_MSG, "i4b_mdl_status_ind", ("STI_ATTACH: attaching unit %d to controller %d\n", unit, nctrl)); /* init function pointers */ ctrl_desc[nctrl].N_CONNECT_REQUEST = n_connect_request; ctrl_desc[nctrl].N_CONNECT_RESPONSE = n_connect_response; ctrl_desc[nctrl].N_DISCONNECT_REQUEST = n_disconnect_request; ctrl_desc[nctrl].N_ALERT_REQUEST = n_alert_request; ctrl_desc[nctrl].N_SET_TRACE = isic_settrace; ctrl_desc[nctrl].N_GET_TRACE = isic_gettrace; ctrl_desc[nctrl].N_DOWNLOAD = NULL; /* only used by active cards */ ctrl_desc[nctrl].N_DIAGNOSTICS = NULL; /* only used by active cards */ ctrl_desc[nctrl].N_MGMT_COMMAND = n_mgmt_command; /* init type and unit */ ctrl_desc[nctrl].unit = unit; ctrl_desc[nctrl].ctrl_type = CTRL_PASSIVE; ctrl_desc[nctrl].card_type = parm; /* state fields */ ctrl_desc[nctrl].dl_est = DL_DOWN; ctrl_desc[nctrl].bch_state[CHAN_B1] = BCH_ST_FREE; ctrl_desc[nctrl].bch_state[CHAN_B2] = BCH_ST_FREE; ctrl_desc[nctrl].tei = -1; /* init unit to controller table */ utoc_tab[unit] = nctrl; /* increment no. of controllers */ nctrl++; break; case STI_L1STAT: i4b_l4_l12stat(unit, 1, parm); DBGL3(L3_MSG, "i4b_mdl_status_ind", ("STI_L1STAT: unit %d layer 1 = %s\n", unit, status ? "up" : "down")); break; case STI_L2STAT: i4b_l4_l12stat(unit, 2, parm); DBGL3(L3_MSG, "i4b_mdl_status_ind", ("STI_L2STAT: unit %d layer 2 = %s\n", unit, status ? "up" : "down")); break; case STI_TEIASG: ctrl_desc[unit].tei = parm; i4b_l4_teiasg(unit, parm); DBGL3(L3_MSG, "i4b_mdl_status_ind", ("STI_TEIASG: unit %d TEI = %d = 0x%02x\n", unit, parm, parm)); break; case STI_PDEACT: /* L1 T4 timeout */ DBGL3(L3_ERR, "i4b_mdl_status_ind", ("STI_PDEACT: unit %d TEI = %d = 0x%02x\n", unit, parm, parm)); sendup = 0; for(i=0; i < N_CALL_DESC; i++) { if( (ctrl_desc[call_desc[i].controller].ctrl_type == CTRL_PASSIVE) && (ctrl_desc[call_desc[i].controller].unit == unit)) { i4b_l3_stop_all_timers(&(call_desc[i])); if(call_desc[i].cdid != CDID_UNUSED) sendup++; } } ctrl_desc[utoc_tab[unit]].dl_est = DL_DOWN; ctrl_desc[utoc_tab[unit]].bch_state[CHAN_B1] = BCH_ST_FREE; ctrl_desc[utoc_tab[unit]].bch_state[CHAN_B2] = BCH_ST_FREE; ctrl_desc[utoc_tab[unit]].tei = -1; if(sendup) { i4b_l4_pdeact(unit, sendup); call_desc[i].cdid = CDID_UNUSED; } break; case STI_NOL1ACC: /* no outgoing access to S0 */ DBGL3(L3_ERR, "i4b_mdl_status_ind", ("STI_NOL1ACC: unit %d no outgoing access to S0\n", unit)); for(i=0; i < N_CALL_DESC; i++) { if( (ctrl_desc[call_desc[i].controller].ctrl_type == CTRL_PASSIVE) && (ctrl_desc[call_desc[i].controller].unit == unit)) { if(call_desc[i].cdid != CDID_UNUSED) { SET_CAUSE_TYPE(call_desc[i].cause_in, CAUSET_I4B); SET_CAUSE_VAL(call_desc[i].cause_in, CAUSE_I4B_L1ERROR); i4b_l4_disconnect_ind(&(call_desc[i])); } } } ctrl_desc[utoc_tab[unit]].dl_est = DL_DOWN; ctrl_desc[utoc_tab[unit]].bch_state[CHAN_B1] = BCH_ST_FREE; ctrl_desc[utoc_tab[unit]].bch_state[CHAN_B2] = BCH_ST_FREE; ctrl_desc[utoc_tab[unit]].tei = -1; break; default: DBGL3(L3_ERR, "i4b_mdl_status_ind", ("ERROR, unit %d, unknown status value %d!\n", unit, status)); break; } return(0); } /*---------------------------------------------------------------------------* * send command to the lower layers *---------------------------------------------------------------------------*/ static void n_mgmt_command(int unit, int cmd, int parm) { int i; switch(cmd) { case CMR_DOPEN: DBGL3(L3_MSG, "n_mgmt_command", ("CMR_DOPEN for unit %d\n", unit)); for(i=0; i < N_CALL_DESC; i++) { if( (ctrl_desc[call_desc[i].controller].ctrl_type == CTRL_PASSIVE) && (ctrl_desc[call_desc[i].controller].unit == unit)) { call_desc[i].cdid = CDID_UNUSED; } } ctrl_desc[utoc_tab[unit]].dl_est = DL_DOWN; ctrl_desc[utoc_tab[unit]].bch_state[CHAN_B1] = BCH_ST_FREE; ctrl_desc[utoc_tab[unit]].bch_state[CHAN_B2] = BCH_ST_FREE; ctrl_desc[utoc_tab[unit]].tei = -1; break; case CMR_DCLOSE: DBGL3(L3_MSG, "n_mgmt_command", ("CMR_DCLOSE for unit %d\n", unit)); break; default: break; } MDL_Command_Req(unit, cmd, parm); } /*---------------------------------------------------------------------------* * handle connect request message from userland *---------------------------------------------------------------------------*/ static void n_connect_request(u_int cdid) { call_desc_t *cd; cd = cd_by_cdid(cdid); next_l3state(cd, EV_SETUPRQ); } /*---------------------------------------------------------------------------* * handle setup response message from userland *---------------------------------------------------------------------------*/ static void n_connect_response(u_int cdid, int response, int cause) { call_desc_t *cd; int chstate; cd = cd_by_cdid(cdid); T400_stop(cd); cd->response = response; cd->cause_out = cause; switch(response) { case SETUP_RESP_ACCEPT: next_l3state(cd, EV_SETACRS); chstate = BCH_ST_USED; break; case SETUP_RESP_REJECT: next_l3state(cd, EV_SETRJRS); chstate = BCH_ST_FREE; break; case SETUP_RESP_DNTCRE: next_l3state(cd, EV_SETDCRS); chstate = BCH_ST_FREE; break; default: /* failsafe */ next_l3state(cd, EV_SETDCRS); chstate = BCH_ST_FREE; DBGL3(L3_ERR, "n_connect_response", ("unknown response, doing SETUP_RESP_DNTCRE")); break; } if((cd->channelid == CHAN_B1) || (cd->channelid == CHAN_B2)) { ctrl_desc[cd->controller].bch_state[cd->channelid] = chstate; } else { DBGL3(L3_MSG, "n_connect_response", ("Warning, invalid channelid %d, response = %d\n", cd->channelid, response)); } } /*---------------------------------------------------------------------------* * handle disconnect request message from userland *---------------------------------------------------------------------------*/ static void n_disconnect_request(u_int cdid, int cause) { call_desc_t *cd; cd = cd_by_cdid(cdid); cd->cause_out = cause; next_l3state(cd, EV_DISCRQ); } /*---------------------------------------------------------------------------* * handle alert request message from userland *---------------------------------------------------------------------------*/ static void n_alert_request(u_int cdid) { call_desc_t *cd; cd = cd_by_cdid(cdid); next_l3state(cd, EV_ALERTRQ); } #endif /* NI4BQ931 > 0 */