summaryrefslogtreecommitdiffstats
path: root/drivers/isdn/sc/command.c
blob: 04b8a58f03b55441420a1c16082293a740521742 (plain)
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
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
/* $Id: command.c,v 1.4.10.1 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 <linux/module.h>
#include "includes.h"		/* This must be first */
#include "hardware.h"
#include "message.h"
#include "card.h"
#include "scioc.h"

static int dial(int card, unsigned long channel, setup_parm setup);
static int hangup(int card, unsigned long channel);
static int answer(int card, unsigned long channel);
static int clreaz(int card, unsigned long channel);
static int seteaz(int card, unsigned long channel, char *);
static int setl2(int card, unsigned long arg);
static int setl3(int card, unsigned long arg);
static int acceptb(int card, unsigned long channel);

extern int cinst;
extern board *sc_adapter[];

extern int sc_ioctl(int, scs_ioctl *);
extern int setup_buffers(int, int, unsigned int);
extern int indicate_status(int, int,ulong,char*);
extern void check_reset(unsigned long);
extern int send_and_receive(int, unsigned int, unsigned char, unsigned char,
                unsigned char, unsigned char, unsigned char, unsigned char *,
                RspMessage *, int);
extern int sendmessage(int, unsigned int, unsigned int, unsigned int,
                unsigned int, unsigned int, unsigned int, unsigned int *);

#ifdef DEBUG
/*
 * Translate command codes to strings
 */
static char *commands[] = { "ISDN_CMD_IOCTL",
			    "ISDN_CMD_DIAL",
			    "ISDN_CMD_ACCEPTB",
			    "ISDN_CMD_ACCEPTB",
			    "ISDN_CMD_HANGUP",
			    "ISDN_CMD_CLREAZ",
			    "ISDN_CMD_SETEAZ",
			    NULL,
			    NULL,
			    NULL,
			    "ISDN_CMD_SETL2",
			    NULL,
			    "ISDN_CMD_SETL3",
			    NULL,
			    NULL,
			    NULL,
			    NULL,
			    NULL, };

/*
 * Translates ISDN4Linux protocol codes to strings for debug messages
 */
static char *l3protos[] = { "ISDN_PROTO_L3_TRANS" };
static char *l2protos[] = { "ISDN_PROTO_L2_X75I",
			    "ISDN_PROTO_L2_X75UI",
			    "ISDN_PROTO_L2_X75BUI",
			    "ISDN_PROTO_L2_HDLC",
			    "ISDN_PROTO_L2_TRANS" };
#endif

int get_card_from_id(int driver)
{
	int i;

	for(i = 0 ; i < cinst ; i++) {
		if(sc_adapter[i]->driverId == driver)
			return i;
	}
	return -ENODEV;
}

/* 
 * command
 */

int command(isdn_ctrl *cmd)
{
	int card;

	card = get_card_from_id(cmd->driver);
	if(!IS_VALID_CARD(card)) {
		pr_debug("Invalid param: %d is not a valid card id\n", card);
		return -ENODEV;
	}

	/*
	 * Dispatch the command
	 */
	switch(cmd->command) {
	case ISDN_CMD_IOCTL:
	{
		unsigned long 	cmdptr;
		scs_ioctl	ioc;

		memcpy(&cmdptr, cmd->parm.num, sizeof(unsigned long));
		if (copy_from_user(&ioc, (scs_ioctl __user *)cmdptr,
				   sizeof(scs_ioctl))) {
			pr_debug("%s: Failed to verify user space 0x%lx\n",
				sc_adapter[card]->devicename, cmdptr);
			return -EFAULT;
		}
		return sc_ioctl(card, &ioc);
	}
	case ISDN_CMD_DIAL:
		return dial(card, cmd->arg, cmd->parm.setup);
	case ISDN_CMD_HANGUP:
		return hangup(card, cmd->arg);
	case ISDN_CMD_ACCEPTD:
		return answer(card, cmd->arg);
	case ISDN_CMD_ACCEPTB:
		return acceptb(card, cmd->arg);
	case ISDN_CMD_CLREAZ:
		return clreaz(card, cmd->arg);
	case ISDN_CMD_SETEAZ:
		return seteaz(card, cmd->arg, cmd->parm.num);
	case ISDN_CMD_SETL2:
		return setl2(card, cmd->arg);
	case ISDN_CMD_SETL3:
		return setl3(card, cmd->arg);
	default:
		return -EINVAL;
	}
	return 0;
}

/*
 * start the onboard firmware
 */
int startproc(int card) 
{
	int status;

	if(!IS_VALID_CARD(card)) {
		pr_debug("Invalid param: %d is not a valid card id\n", card);
		return -ENODEV;
	}

	/*
	 * send start msg 
	 */
       	status = sendmessage(card, CMPID,cmReqType2,
			  cmReqClass0,
			  cmReqStartProc,
			  0,0,NULL);
	pr_debug("%s: Sent startProc\n", sc_adapter[card]->devicename);
	
	return status;
}


/*
 * Dials the number passed in 
 */
static int dial(int card, unsigned long channel, setup_parm setup)
{
	int status;
	char Phone[48];
  
	if(!IS_VALID_CARD(card)) {
		pr_debug("Invalid param: %d is not a valid card id\n", card);
		return -ENODEV;
	}

	/*extract ISDN number to dial from eaz/msn string*/ 
	strcpy(Phone,setup.phone); 

	/*send the connection message*/
	status = sendmessage(card, CEPID,ceReqTypePhy,
				ceReqClass1,
				ceReqPhyConnect,
				(unsigned char) channel+1, 
				strlen(Phone),
				(unsigned int *) Phone);

	pr_debug("%s: Dialing %s on channel %lu\n",
		sc_adapter[card]->devicename, Phone, channel+1);
	
	return status;
}

/*
 * Answer an incoming call 
 */
static int answer(int card, unsigned long channel)
{
	if(!IS_VALID_CARD(card)) {
		pr_debug("Invalid param: %d is not a valid card id\n", card);
		return -ENODEV;
	}

	if(setup_buffers(card, channel+1, BUFFER_SIZE)) {
		hangup(card, channel+1);
		return -ENOBUFS;
	}

	indicate_status(card, ISDN_STAT_BCONN,channel,NULL);
	pr_debug("%s: Answered incoming call on channel %lu\n",
		sc_adapter[card]->devicename, channel+1);
	return 0;
}

/*
 * Hangup up the call on specified channel
 */
static int hangup(int card, unsigned long channel)
{
	int status;

	if(!IS_VALID_CARD(card)) {
		pr_debug("Invalid param: %d is not a valid card id\n", card);
		return -ENODEV;
	}

	status = sendmessage(card, CEPID, ceReqTypePhy,
						 ceReqClass1,
						 ceReqPhyDisconnect,
						 (unsigned char) channel+1,
						 0,
						 NULL);
	pr_debug("%s: Sent HANGUP message to channel %lu\n",
		sc_adapter[card]->devicename, channel+1);
	return status;
}

/*
 * Set the layer 2 protocol (X.25, HDLC, Raw)
 */
static int setl2(int card, unsigned long arg)
{
	int status =0;
	int protocol,channel;

	if(!IS_VALID_CARD(card)) {
		pr_debug("Invalid param: %d is not a valid card id\n", card);
		return -ENODEV;
	}
	protocol = arg >> 8;
	channel = arg & 0xff;
	sc_adapter[card]->channel[channel].l2_proto = protocol;

	/*
	 * check that the adapter is also set to the correct protocol
	 */
	pr_debug("%s: Sending GetFrameFormat for channel %d\n",
		sc_adapter[card]->devicename, channel+1);
	status = sendmessage(card, CEPID, ceReqTypeCall,
 				ceReqClass0,
 				ceReqCallGetFrameFormat,
 				(unsigned char)channel+1,
 				1,
 				(unsigned int *) protocol);
	if(status) 
		return status;
	return 0;
}

/*
 * Set the layer 3 protocol
 */
static int setl3(int card, unsigned long channel)
{
	int protocol = channel >> 8;

	if(!IS_VALID_CARD(card)) {
		pr_debug("Invalid param: %d is not a valid card id\n", card);
		return -ENODEV;
	}

	sc_adapter[card]->channel[channel].l3_proto = protocol;
	return 0;
}

static int acceptb(int card, unsigned long channel)
{
	if(!IS_VALID_CARD(card)) {
		pr_debug("Invalid param: %d is not a valid card id\n", card);
		return -ENODEV;
	}

	if(setup_buffers(card, channel+1, BUFFER_SIZE))
	{
		hangup(card, channel+1);
		return -ENOBUFS;
	}

	pr_debug("%s: B-Channel connection accepted on channel %lu\n",
		sc_adapter[card]->devicename, channel+1);
	indicate_status(card, ISDN_STAT_BCONN, channel, NULL);
	return 0;
}

static int clreaz(int card, unsigned long arg)
{
	if(!IS_VALID_CARD(card)) {
		pr_debug("Invalid param: %d is not a valid card id\n", card);
		return -ENODEV;
	}

	strcpy(sc_adapter[card]->channel[arg].eazlist, "");
	sc_adapter[card]->channel[arg].eazclear = 1;
	pr_debug("%s: EAZ List cleared for channel %lu\n",
		sc_adapter[card]->devicename, arg+1);
	return 0;
}

static int seteaz(int card, unsigned long arg, char *num)
{
	if(!IS_VALID_CARD(card)) {
		pr_debug("Invalid param: %d is not a valid card id\n", card);
		return -ENODEV;
	}

	strcpy(sc_adapter[card]->channel[arg].eazlist, num);
	sc_adapter[card]->channel[arg].eazclear = 0;
	pr_debug("%s: EAZ list for channel %lu set to: %s\n",
		sc_adapter[card]->devicename, arg+1,
		sc_adapter[card]->channel[arg].eazlist);
	return 0;
}

int reset(int card)
{
	unsigned long flags;

	if(!IS_VALID_CARD(card)) {
		pr_debug("Invalid param: %d is not a valid card id\n", card);
		return -ENODEV;
	}

	indicate_status(card, ISDN_STAT_STOP, 0, NULL);

	if(sc_adapter[card]->EngineUp) {
		del_timer(&sc_adapter[card]->stat_timer);
	}

	sc_adapter[card]->EngineUp = 0;

	spin_lock_irqsave(&sc_adapter[card]->lock, flags);
	init_timer(&sc_adapter[card]->reset_timer);
	sc_adapter[card]->reset_timer.function = check_reset;
	sc_adapter[card]->reset_timer.data = card;
	sc_adapter[card]->reset_timer.expires = jiffies + CHECKRESET_TIME;
	add_timer(&sc_adapter[card]->reset_timer);
	spin_unlock_irqrestore(&sc_adapter[card]->lock, flags);

	outb(0x1,sc_adapter[card]->ioport[SFT_RESET]);

	pr_debug("%s: Adapter Reset\n", sc_adapter[card]->devicename);
	return 0;
}

void flushreadfifo (int card)
{
	while(inb(sc_adapter[card]->ioport[FIFO_STATUS]) & RF_HAS_DATA)
		inb(sc_adapter[card]->ioport[FIFO_READ]);
}
OpenPOWER on IntegriCloud