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1 | /* $Id: interrupt.c,v 1.4.8.3 2001/09/23 22:24:59 kai Exp $ |
2 | * | |
3 | * Copyright (C) 1996 SpellCaster Telecommunications Inc. | |
4 | * | |
5 | * This software may be used and distributed according to the terms | |
6 | * of the GNU General Public License, incorporated herein by reference. | |
7 | * | |
8 | * For more information, please contact gpl-info@spellcast.com or write: | |
9 | * | |
10 | * SpellCaster Telecommunications Inc. | |
11 | * 5621 Finch Avenue East, Unit #3 | |
12 | * Scarborough, Ontario Canada | |
13 | * M1B 2T9 | |
14 | * +1 (416) 297-8565 | |
15 | * +1 (416) 297-6433 Facsimile | |
16 | */ | |
17 | ||
18 | #include "includes.h" | |
19 | #include "hardware.h" | |
20 | #include "message.h" | |
21 | #include "card.h" | |
22 | #include <linux/interrupt.h> | |
23 | ||
1da177e4 LT |
24 | /* |
25 | * | |
26 | */ | |
080eb42f | 27 | irqreturn_t interrupt_handler(int dummy, void *card_inst) |
1da177e4 LT |
28 | { |
29 | ||
30 | RspMessage rcvmsg; | |
31 | int channel; | |
080eb42f | 32 | int card = (int)(unsigned long) card_inst; |
1da177e4 LT |
33 | |
34 | if(!IS_VALID_CARD(card)) { | |
35 | pr_debug("Invalid param: %d is not a valid card id\n", card); | |
36 | return IRQ_NONE; | |
37 | } | |
38 | ||
39 | pr_debug("%s: Entered Interrupt handler\n", | |
40 | sc_adapter[card]->devicename); | |
41 | ||
42 | /* | |
43 | * Pull all of the waiting messages off the response queue | |
44 | */ | |
45 | while (!receivemessage(card, &rcvmsg)) { | |
46 | /* | |
47 | * Push the message to the adapter structure for | |
48 | * send_and_receive to snoop | |
49 | */ | |
50 | if(sc_adapter[card]->want_async_messages) | |
51 | memcpy(&(sc_adapter[card]->async_msg), | |
52 | &rcvmsg, sizeof(RspMessage)); | |
53 | ||
54 | channel = (unsigned int) rcvmsg.phy_link_no; | |
55 | ||
56 | /* | |
57 | * Trap Invalid request messages | |
58 | */ | |
59 | if(IS_CM_MESSAGE(rcvmsg, 0, 0, Invalid)) { | |
60 | pr_debug("%s: Invalid request Message, rsp_status = %d\n", | |
61 | sc_adapter[card]->devicename, | |
62 | rcvmsg.rsp_status); | |
63 | break; | |
64 | } | |
65 | ||
66 | /* | |
67 | * Check for a linkRead message | |
68 | */ | |
69 | if (IS_CE_MESSAGE(rcvmsg, Lnk, 1, Read)) | |
70 | { | |
3879b6b6 | 71 | pr_debug("%s: Received packet 0x%x bytes long at 0x%lx\n", |
1da177e4 LT |
72 | sc_adapter[card]->devicename, |
73 | rcvmsg.msg_data.response.msg_len, | |
74 | rcvmsg.msg_data.response.buff_offset); | |
75 | rcvpkt(card, &rcvmsg); | |
76 | continue; | |
77 | ||
78 | } | |
79 | ||
80 | /* | |
81 | * Handle a write acknoledgement | |
82 | */ | |
83 | if(IS_CE_MESSAGE(rcvmsg, Lnk, 1, Write)) { | |
84 | pr_debug("%s: Packet Send ACK on channel %d\n", | |
85 | sc_adapter[card]->devicename, | |
86 | rcvmsg.phy_link_no); | |
87 | sc_adapter[card]->channel[rcvmsg.phy_link_no-1].free_sendbufs++; | |
88 | continue; | |
89 | } | |
90 | ||
91 | /* | |
92 | * Handle a connection message | |
93 | */ | |
94 | if (IS_CE_MESSAGE(rcvmsg, Phy, 1, Connect)) | |
95 | { | |
96 | unsigned int callid; | |
97 | setup_parm setup; | |
98 | pr_debug("%s: Connect message: line %d: status %d: cause 0x%x\n", | |
99 | sc_adapter[card]->devicename, | |
100 | rcvmsg.phy_link_no, | |
101 | rcvmsg.rsp_status, | |
102 | rcvmsg.msg_data.byte_array[2]); | |
103 | ||
104 | memcpy(&callid,rcvmsg.msg_data.byte_array,sizeof(int)); | |
105 | if(callid>=0x8000 && callid<=0xFFFF) | |
106 | { | |
107 | pr_debug("%s: Got Dial-Out Rsp\n", | |
108 | sc_adapter[card]->devicename); | |
109 | indicate_status(card, ISDN_STAT_DCONN, | |
110 | (unsigned long)rcvmsg.phy_link_no-1,NULL); | |
111 | ||
112 | } | |
113 | else if(callid>=0x0000 && callid<=0x7FFF) | |
114 | { | |
115 | pr_debug("%s: Got Incoming Call\n", | |
116 | sc_adapter[card]->devicename); | |
117 | strcpy(setup.phone,&(rcvmsg.msg_data.byte_array[4])); | |
118 | strcpy(setup.eazmsn, | |
119 | sc_adapter[card]->channel[rcvmsg.phy_link_no-1].dn); | |
120 | setup.si1 = 7; | |
121 | setup.si2 = 0; | |
122 | setup.plan = 0; | |
123 | setup.screen = 0; | |
124 | ||
125 | indicate_status(card, ISDN_STAT_ICALL,(unsigned long)rcvmsg.phy_link_no-1,(char *)&setup); | |
126 | indicate_status(card, ISDN_STAT_DCONN,(unsigned long)rcvmsg.phy_link_no-1,NULL); | |
127 | } | |
128 | continue; | |
129 | } | |
130 | ||
131 | /* | |
132 | * Handle a disconnection message | |
133 | */ | |
134 | if (IS_CE_MESSAGE(rcvmsg, Phy, 1, Disconnect)) | |
135 | { | |
136 | pr_debug("%s: disconnect message: line %d: status %d: cause 0x%x\n", | |
137 | sc_adapter[card]->devicename, | |
138 | rcvmsg.phy_link_no, | |
139 | rcvmsg.rsp_status, | |
140 | rcvmsg.msg_data.byte_array[2]); | |
141 | ||
142 | indicate_status(card, ISDN_STAT_BHUP,(unsigned long)rcvmsg.phy_link_no-1,NULL); | |
143 | indicate_status(card, ISDN_STAT_DHUP,(unsigned long)rcvmsg.phy_link_no-1,NULL); | |
144 | continue; | |
145 | ||
146 | } | |
147 | ||
148 | /* | |
149 | * Handle a startProc engine up message | |
150 | */ | |
151 | if (IS_CM_MESSAGE(rcvmsg, 5, 0, MiscEngineUp)) { | |
152 | pr_debug("%s: Received EngineUp message\n", | |
153 | sc_adapter[card]->devicename); | |
154 | sc_adapter[card]->EngineUp = 1; | |
155 | sendmessage(card, CEPID,ceReqTypeCall,ceReqClass0,ceReqCallGetMyNumber,1,0,NULL); | |
156 | sendmessage(card, CEPID,ceReqTypeCall,ceReqClass0,ceReqCallGetMyNumber,2,0,NULL); | |
157 | init_timer(&sc_adapter[card]->stat_timer); | |
158 | sc_adapter[card]->stat_timer.function = check_phystat; | |
159 | sc_adapter[card]->stat_timer.data = card; | |
160 | sc_adapter[card]->stat_timer.expires = jiffies + CHECKSTAT_TIME; | |
161 | add_timer(&sc_adapter[card]->stat_timer); | |
162 | continue; | |
163 | } | |
164 | ||
165 | /* | |
166 | * Start proc response | |
167 | */ | |
168 | if (IS_CM_MESSAGE(rcvmsg, 2, 0, StartProc)) { | |
169 | pr_debug("%s: StartProc Response Status %d\n", | |
170 | sc_adapter[card]->devicename, | |
171 | rcvmsg.rsp_status); | |
172 | continue; | |
173 | } | |
174 | ||
175 | /* | |
176 | * Handle a GetMyNumber Rsp | |
177 | */ | |
178 | if (IS_CE_MESSAGE(rcvmsg,Call,0,GetMyNumber)){ | |
179 | strcpy(sc_adapter[card]->channel[rcvmsg.phy_link_no-1].dn,rcvmsg.msg_data.byte_array); | |
180 | continue; | |
181 | } | |
182 | ||
183 | /* | |
184 | * PhyStatus response | |
185 | */ | |
186 | if(IS_CE_MESSAGE(rcvmsg, Phy, 2, Status)) { | |
187 | unsigned int b1stat, b2stat; | |
188 | ||
189 | /* | |
190 | * Covert the message data to the adapter->phystat code | |
191 | */ | |
192 | b1stat = (unsigned int) rcvmsg.msg_data.byte_array[0]; | |
193 | b2stat = (unsigned int) rcvmsg.msg_data.byte_array[1]; | |
194 | ||
195 | sc_adapter[card]->nphystat = (b2stat >> 8) | b1stat; /* endian?? */ | |
196 | pr_debug("%s: PhyStat is 0x%2x\n", | |
197 | sc_adapter[card]->devicename, | |
198 | sc_adapter[card]->nphystat); | |
199 | continue; | |
200 | } | |
201 | ||
202 | ||
203 | /* | |
204 | * Handle a GetFramFormat | |
205 | */ | |
206 | if(IS_CE_MESSAGE(rcvmsg, Call, 0, GetFrameFormat)) { | |
207 | if(rcvmsg.msg_data.byte_array[0] != HDLC_PROTO) { | |
208 | unsigned int proto = HDLC_PROTO; | |
209 | /* | |
210 | * Set board format to HDLC if it wasn't already | |
211 | */ | |
212 | pr_debug("%s: current frame format: 0x%x, will change to HDLC\n", | |
213 | sc_adapter[card]->devicename, | |
214 | rcvmsg.msg_data.byte_array[0]); | |
215 | sendmessage(card, CEPID, ceReqTypeCall, | |
216 | ceReqClass0, | |
217 | ceReqCallSetFrameFormat, | |
218 | (unsigned char) channel +1, | |
219 | 1,&proto); | |
220 | } | |
221 | continue; | |
222 | } | |
223 | ||
224 | /* | |
225 | * Hmm... | |
226 | */ | |
227 | pr_debug("%s: Received unhandled message (%d,%d,%d) link %d\n", | |
228 | sc_adapter[card]->devicename, | |
229 | rcvmsg.type, rcvmsg.class, rcvmsg.code, | |
230 | rcvmsg.phy_link_no); | |
231 | ||
232 | } /* while */ | |
233 | ||
234 | pr_debug("%s: Exiting Interrupt Handler\n", | |
235 | sc_adapter[card]->devicename); | |
236 | return IRQ_HANDLED; | |
237 | } |