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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 | /* $Id: interrupt.c,v 1.4.8.3 2001/09/23 22:24:59 kai Exp $ * * Copyright (C) 1996 SpellCaster Telecommunications Inc. * * This software may be used and distributed according to the terms * of the GNU General Public License, incorporated herein by reference. * * For more information, please contact gpl-info@spellcast.com or write: * * SpellCaster Telecommunications Inc. * 5621 Finch Avenue East, Unit #3 * Scarborough, Ontario Canada * M1B 2T9 * +1 (416) 297-8565 * +1 (416) 297-6433 Facsimile */ #include "includes.h" #include "hardware.h" #include "message.h" #include "card.h" #include <linux/interrupt.h> /* * */ irqreturn_t interrupt_handler(int dummy, void *card_inst) { RspMessage rcvmsg; int channel; int card = (int)(unsigned long) card_inst; if (!IS_VALID_CARD(card)) { pr_debug("Invalid param: %d is not a valid card id\n", card); return IRQ_NONE; } pr_debug("%s: Entered Interrupt handler\n", sc_adapter[card]->devicename); /* * Pull all of the waiting messages off the response queue */ while (!receivemessage(card, &rcvmsg)) { /* * Push the message to the adapter structure for * send_and_receive to snoop */ if (sc_adapter[card]->want_async_messages) memcpy(&(sc_adapter[card]->async_msg), &rcvmsg, sizeof(RspMessage)); channel = (unsigned int) rcvmsg.phy_link_no; /* * Trap Invalid request messages */ if (IS_CM_MESSAGE(rcvmsg, 0, 0, Invalid)) { pr_debug("%s: Invalid request Message, rsp_status = %d\n", sc_adapter[card]->devicename, rcvmsg.rsp_status); break; } /* * Check for a linkRead message */ if (IS_CE_MESSAGE(rcvmsg, Lnk, 1, Read)) { pr_debug("%s: Received packet 0x%x bytes long at 0x%lx\n", sc_adapter[card]->devicename, rcvmsg.msg_data.response.msg_len, rcvmsg.msg_data.response.buff_offset); rcvpkt(card, &rcvmsg); continue; } /* * Handle a write acknoledgement */ if (IS_CE_MESSAGE(rcvmsg, Lnk, 1, Write)) { pr_debug("%s: Packet Send ACK on channel %d\n", sc_adapter[card]->devicename, rcvmsg.phy_link_no); sc_adapter[card]->channel[rcvmsg.phy_link_no - 1].free_sendbufs++; continue; } /* * Handle a connection message */ if (IS_CE_MESSAGE(rcvmsg, Phy, 1, Connect)) { unsigned int callid; setup_parm setup; pr_debug("%s: Connect message: line %d: status %d: cause 0x%x\n", sc_adapter[card]->devicename, rcvmsg.phy_link_no, rcvmsg.rsp_status, rcvmsg.msg_data.byte_array[2]); memcpy(&callid, rcvmsg.msg_data.byte_array, sizeof(int)); if (callid >= 0x8000 && callid <= 0xFFFF) { pr_debug("%s: Got Dial-Out Rsp\n", sc_adapter[card]->devicename); indicate_status(card, ISDN_STAT_DCONN, (unsigned long)rcvmsg.phy_link_no - 1, NULL); } else if (callid >= 0x0000 && callid <= 0x7FFF) { int len; pr_debug("%s: Got Incoming Call\n", sc_adapter[card]->devicename); len = strlcpy(setup.phone, &(rcvmsg.msg_data.byte_array[4]), sizeof(setup.phone)); if (len >= sizeof(setup.phone)) continue; len = strlcpy(setup.eazmsn, sc_adapter[card]->channel[rcvmsg.phy_link_no - 1].dn, sizeof(setup.eazmsn)); if (len >= sizeof(setup.eazmsn)) continue; setup.si1 = 7; setup.si2 = 0; setup.plan = 0; setup.screen = 0; indicate_status(card, ISDN_STAT_ICALL, (unsigned long)rcvmsg.phy_link_no - 1, (char *)&setup); indicate_status(card, ISDN_STAT_DCONN, (unsigned long)rcvmsg.phy_link_no - 1, NULL); } continue; } /* * Handle a disconnection message */ if (IS_CE_MESSAGE(rcvmsg, Phy, 1, Disconnect)) { pr_debug("%s: disconnect message: line %d: status %d: cause 0x%x\n", sc_adapter[card]->devicename, rcvmsg.phy_link_no, rcvmsg.rsp_status, rcvmsg.msg_data.byte_array[2]); indicate_status(card, ISDN_STAT_BHUP, (unsigned long)rcvmsg.phy_link_no - 1, NULL); indicate_status(card, ISDN_STAT_DHUP, (unsigned long)rcvmsg.phy_link_no - 1, NULL); continue; } /* * Handle a startProc engine up message */ if (IS_CM_MESSAGE(rcvmsg, 5, 0, MiscEngineUp)) { pr_debug("%s: Received EngineUp message\n", sc_adapter[card]->devicename); sc_adapter[card]->EngineUp = 1; sendmessage(card, CEPID, ceReqTypeCall, ceReqClass0, ceReqCallGetMyNumber, 1, 0, NULL); sendmessage(card, CEPID, ceReqTypeCall, ceReqClass0, ceReqCallGetMyNumber, 2, 0, NULL); init_timer(&sc_adapter[card]->stat_timer); sc_adapter[card]->stat_timer.function = check_phystat; sc_adapter[card]->stat_timer.data = card; sc_adapter[card]->stat_timer.expires = jiffies + CHECKSTAT_TIME; add_timer(&sc_adapter[card]->stat_timer); continue; } /* * Start proc response */ if (IS_CM_MESSAGE(rcvmsg, 2, 0, StartProc)) { pr_debug("%s: StartProc Response Status %d\n", sc_adapter[card]->devicename, rcvmsg.rsp_status); continue; } /* * Handle a GetMyNumber Rsp */ if (IS_CE_MESSAGE(rcvmsg, Call, 0, GetMyNumber)) { strlcpy(sc_adapter[card]->channel[rcvmsg.phy_link_no - 1].dn, rcvmsg.msg_data.byte_array, sizeof(rcvmsg.msg_data.byte_array)); continue; } /* * PhyStatus response */ if (IS_CE_MESSAGE(rcvmsg, Phy, 2, Status)) { unsigned int b1stat, b2stat; /* * Covert the message data to the adapter->phystat code */ b1stat = (unsigned int) rcvmsg.msg_data.byte_array[0]; b2stat = (unsigned int) rcvmsg.msg_data.byte_array[1]; sc_adapter[card]->nphystat = (b2stat >> 8) | b1stat; /* endian?? */ pr_debug("%s: PhyStat is 0x%2x\n", sc_adapter[card]->devicename, sc_adapter[card]->nphystat); continue; } /* * Handle a GetFramFormat */ if (IS_CE_MESSAGE(rcvmsg, Call, 0, GetFrameFormat)) { if (rcvmsg.msg_data.byte_array[0] != HDLC_PROTO) { unsigned int proto = HDLC_PROTO; /* * Set board format to HDLC if it wasn't already */ pr_debug("%s: current frame format: 0x%x, will change to HDLC\n", sc_adapter[card]->devicename, rcvmsg.msg_data.byte_array[0]); sendmessage(card, CEPID, ceReqTypeCall, ceReqClass0, ceReqCallSetFrameFormat, (unsigned char)channel + 1, 1, &proto); } continue; } /* * Hmm... */ pr_debug("%s: Received unhandled message (%d,%d,%d) link %d\n", sc_adapter[card]->devicename, rcvmsg.type, rcvmsg.class, rcvmsg.code, rcvmsg.phy_link_no); } /* while */ pr_debug("%s: Exiting Interrupt Handler\n", sc_adapter[card]->devicename); return IRQ_HANDLED; } |