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Diffstat (limited to 'drivers/isdn/sc/command.c')
-rw-r--r--drivers/isdn/sc/command.c441
1 files changed, 441 insertions, 0 deletions
diff --git a/drivers/isdn/sc/command.c b/drivers/isdn/sc/command.c
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index 000000000000..b2c4eac7cef5
--- /dev/null
+++ b/drivers/isdn/sc/command.c
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1/* $Id: command.c,v 1.4.10.1 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 <linux/module.h>
19#include "includes.h" /* This must be first */
20#include "hardware.h"
21#include "message.h"
22#include "card.h"
23#include "scioc.h"
24
25int dial(int card, unsigned long channel, setup_parm setup);
26int hangup(int card, unsigned long channel);
27int answer(int card, unsigned long channel);
28int clreaz(int card, unsigned long channel);
29int seteaz(int card, unsigned long channel, char *);
30int setl2(int card, unsigned long arg);
31int setl3(int card, unsigned long arg);
32int acceptb(int card, unsigned long channel);
33
34extern int cinst;
35extern board *sc_adapter[];
36
37extern int sc_ioctl(int, scs_ioctl *);
38extern int setup_buffers(int, int, unsigned int);
39extern int indicate_status(int, int,ulong,char*);
40extern void check_reset(unsigned long);
41extern int send_and_receive(int, unsigned int, unsigned char, unsigned char,
42 unsigned char, unsigned char, unsigned char, unsigned char *,
43 RspMessage *, int);
44extern int sendmessage(int, unsigned int, unsigned int, unsigned int,
45 unsigned int, unsigned int, unsigned int, unsigned int *);
46extern inline void pullphone(char *, char *);
47
48#ifdef DEBUG
49/*
50 * Translate command codes to strings
51 */
52static char *commands[] = { "ISDN_CMD_IOCTL",
53 "ISDN_CMD_DIAL",
54 "ISDN_CMD_ACCEPTB",
55 "ISDN_CMD_ACCEPTB",
56 "ISDN_CMD_HANGUP",
57 "ISDN_CMD_CLREAZ",
58 "ISDN_CMD_SETEAZ",
59 NULL,
60 NULL,
61 NULL,
62 "ISDN_CMD_SETL2",
63 NULL,
64 "ISDN_CMD_SETL3",
65 NULL,
66 NULL,
67 NULL,
68 NULL,
69 NULL, };
70
71/*
72 * Translates ISDN4Linux protocol codes to strings for debug messages
73 */
74static char *l3protos[] = { "ISDN_PROTO_L3_TRANS" };
75static char *l2protos[] = { "ISDN_PROTO_L2_X75I",
76 "ISDN_PROTO_L2_X75UI",
77 "ISDN_PROTO_L2_X75BUI",
78 "ISDN_PROTO_L2_HDLC",
79 "ISDN_PROTO_L2_TRANS" };
80#endif
81
82int get_card_from_id(int driver)
83{
84 int i;
85
86 for(i = 0 ; i < cinst ; i++) {
87 if(sc_adapter[i]->driverId == driver)
88 return i;
89 }
90 return -ENODEV;
91}
92
93/*
94 * command
95 */
96
97int command(isdn_ctrl *cmd)
98{
99 int card;
100
101 card = get_card_from_id(cmd->driver);
102 if(!IS_VALID_CARD(card)) {
103 pr_debug("Invalid param: %d is not a valid card id\n", card);
104 return -ENODEV;
105 }
106
107 pr_debug("%s: Received %s command from Link Layer\n",
108 sc_adapter[card]->devicename, commands[cmd->command]);
109
110 /*
111 * Dispatch the command
112 */
113 switch(cmd->command) {
114 case ISDN_CMD_IOCTL:
115 {
116 unsigned long cmdptr;
117 scs_ioctl ioc;
118
119 memcpy(&cmdptr, cmd->parm.num, sizeof(unsigned long));
120 if (copy_from_user(&ioc, (scs_ioctl __user *)cmdptr,
121 sizeof(scs_ioctl))) {
122 pr_debug("%s: Failed to verify user space 0x%x\n",
123 sc_adapter[card]->devicename, cmdptr);
124 return -EFAULT;
125 }
126 return sc_ioctl(card, &ioc);
127 }
128 case ISDN_CMD_DIAL:
129 return dial(card, cmd->arg, cmd->parm.setup);
130 case ISDN_CMD_HANGUP:
131 return hangup(card, cmd->arg);
132 case ISDN_CMD_ACCEPTD:
133 return answer(card, cmd->arg);
134 case ISDN_CMD_ACCEPTB:
135 return acceptb(card, cmd->arg);
136 case ISDN_CMD_CLREAZ:
137 return clreaz(card, cmd->arg);
138 case ISDN_CMD_SETEAZ:
139 return seteaz(card, cmd->arg, cmd->parm.num);
140 case ISDN_CMD_SETL2:
141 return setl2(card, cmd->arg);
142 case ISDN_CMD_SETL3:
143 return setl3(card, cmd->arg);
144 default:
145 return -EINVAL;
146 }
147 return 0;
148}
149
150/*
151 * Confirm our ability to communicate with the board. This test assumes no
152 * other message activity is present
153 */
154int loopback(int card)
155{
156
157 int status;
158 static char testmsg[] = "Test Message";
159 RspMessage rspmsg;
160
161 if(!IS_VALID_CARD(card)) {
162 pr_debug("Invalid param: %d is not a valid card id\n", card);
163 return -ENODEV;
164 }
165
166 pr_debug("%s: Sending loopback message\n",
167 sc_adapter[card]->devicename);
168
169 /*
170 * Send the loopback message to confirm that memory transfer is
171 * operational
172 */
173 status = send_and_receive(card, CMPID, cmReqType1,
174 cmReqClass0,
175 cmReqMsgLpbk,
176 0,
177 (unsigned char) strlen(testmsg),
178 (unsigned char *)testmsg,
179 &rspmsg, SAR_TIMEOUT);
180
181
182 if (!status) {
183 pr_debug("%s: Loopback message successfully sent\n",
184 sc_adapter[card]->devicename);
185 if(strcmp(rspmsg.msg_data.byte_array, testmsg)) {
186 pr_debug("%s: Loopback return != sent\n",
187 sc_adapter[card]->devicename);
188 return -EIO;
189 }
190 return 0;
191 }
192 else {
193 pr_debug("%s: Send loopback message failed\n",
194 sc_adapter[card]->devicename);
195 return -EIO;
196 }
197
198}
199
200/*
201 * start the onboard firmware
202 */
203int startproc(int card)
204{
205 int status;
206
207 if(!IS_VALID_CARD(card)) {
208 pr_debug("Invalid param: %d is not a valid card id\n", card);
209 return -ENODEV;
210 }
211
212 /*
213 * send start msg
214 */
215 status = sendmessage(card, CMPID,cmReqType2,
216 cmReqClass0,
217 cmReqStartProc,
218 0,0,NULL);
219 pr_debug("%s: Sent startProc\n", sc_adapter[card]->devicename);
220
221 return status;
222}
223
224
225int loadproc(int card, char *data)
226{
227 return -1;
228}
229
230
231/*
232 * Dials the number passed in
233 */
234int dial(int card, unsigned long channel, setup_parm setup)
235{
236 int status;
237 char Phone[48];
238
239 if(!IS_VALID_CARD(card)) {
240 pr_debug("Invalid param: %d is not a valid card id\n", card);
241 return -ENODEV;
242 }
243
244 /*extract ISDN number to dial from eaz/msn string*/
245 strcpy(Phone,setup.phone);
246
247 /*send the connection message*/
248 status = sendmessage(card, CEPID,ceReqTypePhy,
249 ceReqClass1,
250 ceReqPhyConnect,
251 (unsigned char) channel+1,
252 strlen(Phone),
253 (unsigned int *) Phone);
254
255 pr_debug("%s: Dialing %s on channel %d\n",
256 sc_adapter[card]->devicename, Phone, channel+1);
257
258 return status;
259}
260
261/*
262 * Answer an incoming call
263 */
264int answer(int card, unsigned long channel)
265{
266 if(!IS_VALID_CARD(card)) {
267 pr_debug("Invalid param: %d is not a valid card id\n", card);
268 return -ENODEV;
269 }
270
271 if(setup_buffers(card, channel+1, BUFFER_SIZE)) {
272 hangup(card, channel+1);
273 return -ENOBUFS;
274 }
275
276 indicate_status(card, ISDN_STAT_BCONN,channel,NULL);
277 pr_debug("%s: Answered incoming call on channel %s\n",
278 sc_adapter[card]->devicename, channel+1);
279 return 0;
280}
281
282/*
283 * Hangup up the call on specified channel
284 */
285int hangup(int card, unsigned long channel)
286{
287 int status;
288
289 if(!IS_VALID_CARD(card)) {
290 pr_debug("Invalid param: %d is not a valid card id\n", card);
291 return -ENODEV;
292 }
293
294 status = sendmessage(card, CEPID, ceReqTypePhy,
295 ceReqClass1,
296 ceReqPhyDisconnect,
297 (unsigned char) channel+1,
298 0,
299 NULL);
300 pr_debug("%s: Sent HANGUP message to channel %d\n",
301 sc_adapter[card]->devicename, channel+1);
302 return status;
303}
304
305/*
306 * Set the layer 2 protocol (X.25, HDLC, Raw)
307 */
308int setl2(int card, unsigned long arg)
309{
310 int status =0;
311 int protocol,channel;
312
313 if(!IS_VALID_CARD(card)) {
314 pr_debug("Invalid param: %d is not a valid card id\n", card);
315 return -ENODEV;
316 }
317 protocol = arg >> 8;
318 channel = arg & 0xff;
319 sc_adapter[card]->channel[channel].l2_proto = protocol;
320 pr_debug("%s: Level 2 protocol for channel %d set to %s from %d\n",
321 sc_adapter[card]->devicename, channel+1,
322 l2protos[sc_adapter[card]->channel[channel].l2_proto],protocol);
323
324 /*
325 * check that the adapter is also set to the correct protocol
326 */
327 pr_debug("%s: Sending GetFrameFormat for channel %d\n",
328 sc_adapter[card]->devicename, channel+1);
329 status = sendmessage(card, CEPID, ceReqTypeCall,
330 ceReqClass0,
331 ceReqCallGetFrameFormat,
332 (unsigned char)channel+1,
333 1,
334 (unsigned int *) protocol);
335 if(status)
336 return status;
337 return 0;
338}
339
340/*
341 * Set the layer 3 protocol
342 */
343int setl3(int card, unsigned long channel)
344{
345 int protocol = channel >> 8;
346
347 if(!IS_VALID_CARD(card)) {
348 pr_debug("Invalid param: %d is not a valid card id\n", card);
349 return -ENODEV;
350 }
351
352 sc_adapter[card]->channel[channel].l3_proto = protocol;
353 pr_debug("%s: Level 3 protocol for channel %d set to %s\n",
354 sc_adapter[card]->devicename, channel+1, l3protos[protocol]);
355 return 0;
356}
357
358int acceptb(int card, unsigned long channel)
359{
360 if(!IS_VALID_CARD(card)) {
361 pr_debug("Invalid param: %d is not a valid card id\n", card);
362 return -ENODEV;
363 }
364
365 if(setup_buffers(card, channel+1, BUFFER_SIZE))
366 {
367 hangup(card, channel+1);
368 return -ENOBUFS;
369 }
370
371 pr_debug("%s: B-Channel connection accepted on channel %d\n",
372 sc_adapter[card]->devicename, channel+1);
373 indicate_status(card, ISDN_STAT_BCONN, channel, NULL);
374 return 0;
375}
376
377int clreaz(int card, unsigned long arg)
378{
379 if(!IS_VALID_CARD(card)) {
380 pr_debug("Invalid param: %d is not a valid card id\n", card);
381 return -ENODEV;
382 }
383
384 strcpy(sc_adapter[card]->channel[arg].eazlist, "");
385 sc_adapter[card]->channel[arg].eazclear = 1;
386 pr_debug("%s: EAZ List cleared for channel %d\n",
387 sc_adapter[card]->devicename, arg+1);
388 return 0;
389}
390
391int seteaz(int card, unsigned long arg, char *num)
392{
393 if(!IS_VALID_CARD(card)) {
394 pr_debug("Invalid param: %d is not a valid card id\n", card);
395 return -ENODEV;
396 }
397
398 strcpy(sc_adapter[card]->channel[arg].eazlist, num);
399 sc_adapter[card]->channel[arg].eazclear = 0;
400 pr_debug("%s: EAZ list for channel %d set to: %s\n",
401 sc_adapter[card]->devicename, arg+1,
402 sc_adapter[card]->channel[arg].eazlist);
403 return 0;
404}
405
406int reset(int card)
407{
408 unsigned long flags;
409
410 if(!IS_VALID_CARD(card)) {
411 pr_debug("Invalid param: %d is not a valid card id\n", card);
412 return -ENODEV;
413 }
414
415 indicate_status(card, ISDN_STAT_STOP, 0, NULL);
416
417 if(sc_adapter[card]->EngineUp) {
418 del_timer(&sc_adapter[card]->stat_timer);
419 }
420
421 sc_adapter[card]->EngineUp = 0;
422
423 spin_lock_irqsave(&sc_adapter[card]->lock, flags);
424 init_timer(&sc_adapter[card]->reset_timer);
425 sc_adapter[card]->reset_timer.function = check_reset;
426 sc_adapter[card]->reset_timer.data = card;
427 sc_adapter[card]->reset_timer.expires = jiffies + CHECKRESET_TIME;
428 add_timer(&sc_adapter[card]->reset_timer);
429 spin_unlock_irqrestore(&sc_adapter[card]->lock, flags);
430
431 outb(0x1,sc_adapter[card]->ioport[SFT_RESET]);
432
433 pr_debug("%s: Adapter Reset\n", sc_adapter[card]->devicename);
434 return 0;
435}
436
437void flushreadfifo (int card)
438{
439 while(inb(sc_adapter[card]->ioport[FIFO_STATUS]) & RF_HAS_DATA)
440 inb(sc_adapter[card]->ioport[FIFO_READ]);
441}
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