Commit | Line | Data |
---|---|---|
3c66a225 HL |
1 | /* |
2 | * Stuff used by all variants of the driver | |
3 | * | |
70440cf2 TS |
4 | * Copyright (c) 2001 by Stefan Eilers, |
5 | * Hansjoerg Lipp <hjlipp@web.de>, | |
6 | * Tilman Schmidt <tilman@imap.cc>. | |
3c66a225 HL |
7 | * |
8 | * ===================================================================== | |
9 | * This program is free software; you can redistribute it and/or | |
10 | * modify it under the terms of the GNU General Public License as | |
11 | * published by the Free Software Foundation; either version 2 of | |
12 | * the License, or (at your option) any later version. | |
13 | * ===================================================================== | |
3c66a225 HL |
14 | */ |
15 | ||
16 | #include "gigaset.h" | |
088ec0cc TS |
17 | #include <linux/isdnif.h> |
18 | ||
e7752ee2 TS |
19 | #define SBUFSIZE 4096 /* sk_buff payload size */ |
20 | #define TRANSBUFSIZE 768 /* bytes per skb for transparent receive */ | |
088ec0cc | 21 | #define HW_HDR_LEN 2 /* Header size used to store ack info */ |
e7752ee2 | 22 | #define MAX_BUF_SIZE (SBUFSIZE - HW_HDR_LEN) /* max data packet from LL */ |
3c66a225 | 23 | |
784d5858 | 24 | /* == Handling of I4L IO =====================================================*/ |
3c66a225 HL |
25 | |
26 | /* writebuf_from_LL | |
27 | * called by LL to transmit data on an open channel | |
28 | * inserts the buffer data into the send queue and starts the transmission | |
29 | * Note that this operation must not sleep! | |
30 | * When the buffer is processed completely, gigaset_skb_sent() should be called. | |
31 | * parameters: | |
32 | * driverID driver ID as assigned by LL | |
33 | * channel channel number | |
917f5085 TS |
34 | * ack if != 0 LL wants to be notified on completion via |
35 | * statcallb(ISDN_STAT_BSENT) | |
3c66a225 HL |
36 | * skb skb containing data to send |
37 | * return value: | |
38 | * number of accepted bytes | |
39 | * 0 if temporarily unable to accept data (out of buffer space) | |
40 | * <0 on error (eg. -EINVAL) | |
41 | */ | |
784d5858 TS |
42 | static int writebuf_from_LL(int driverID, int channel, int ack, |
43 | struct sk_buff *skb) | |
3c66a225 | 44 | { |
d9ba9c91 | 45 | struct cardstate *cs = gigaset_get_cs_by_id(driverID); |
3c66a225 | 46 | struct bc_state *bcs; |
4dd8230a | 47 | unsigned char *ack_header; |
3c66a225 | 48 | unsigned len; |
3c66a225 | 49 | |
d9ba9c91 | 50 | if (!cs) { |
c8770dca | 51 | pr_err("%s: invalid driver ID (%d)\n", __func__, driverID); |
3c66a225 HL |
52 | return -ENODEV; |
53 | } | |
54 | if (channel < 0 || channel >= cs->channels) { | |
5002779d TS |
55 | dev_err(cs->dev, "%s: invalid channel ID (%d)\n", |
56 | __func__, channel); | |
3c66a225 HL |
57 | return -ENODEV; |
58 | } | |
59 | bcs = &cs->bcs[channel]; | |
ee239d99 TS |
60 | |
61 | /* can only handle linear sk_buffs */ | |
62 | if (skb_linearize(skb) < 0) { | |
63 | dev_err(cs->dev, "%s: skb_linearize failed\n", __func__); | |
64 | return -ENOMEM; | |
65 | } | |
3c66a225 HL |
66 | len = skb->len; |
67 | ||
784d5858 TS |
68 | gig_dbg(DEBUG_LLDATA, |
69 | "Receiving data from LL (id: %d, ch: %d, ack: %d, sz: %d)", | |
70 | driverID, channel, ack, len); | |
71 | ||
3c66a225 HL |
72 | if (!len) { |
73 | if (ack) | |
5002779d TS |
74 | dev_notice(cs->dev, "%s: not ACKing empty packet\n", |
75 | __func__); | |
3c66a225 HL |
76 | return 0; |
77 | } | |
78 | if (len > MAX_BUF_SIZE) { | |
5002779d TS |
79 | dev_err(cs->dev, "%s: packet too large (%d bytes)\n", |
80 | __func__, len); | |
3c66a225 HL |
81 | return -EINVAL; |
82 | } | |
83 | ||
4dd8230a TS |
84 | /* set up acknowledgement header */ |
85 | if (skb_headroom(skb) < HW_HDR_LEN) { | |
86 | /* should never happen */ | |
87 | dev_err(cs->dev, "%s: insufficient skb headroom\n", __func__); | |
88 | return -ENOMEM; | |
89 | } | |
90 | skb_set_mac_header(skb, -HW_HDR_LEN); | |
91 | skb->mac_len = HW_HDR_LEN; | |
92 | ack_header = skb_mac_header(skb); | |
93 | if (ack) { | |
94 | ack_header[0] = len & 0xff; | |
95 | ack_header[1] = len >> 8; | |
96 | } else { | |
97 | ack_header[0] = ack_header[1] = 0; | |
98 | } | |
99 | gig_dbg(DEBUG_MCMD, "skb: len=%u, ack=%d: %02x %02x", | |
100 | len, ack, ack_header[0], ack_header[1]); | |
3c66a225 HL |
101 | |
102 | /* pass to device-specific module */ | |
73a88814 | 103 | return cs->ops->send_skb(bcs, skb); |
3c66a225 HL |
104 | } |
105 | ||
1cec9727 TS |
106 | /** |
107 | * gigaset_skb_sent() - acknowledge sending an skb | |
108 | * @bcs: B channel descriptor structure. | |
109 | * @skb: sent data. | |
110 | * | |
111 | * Called by hardware module {bas,ser,usb}_gigaset when the data in a | |
112 | * skb has been successfully sent, for signalling completion to the LL. | |
113 | */ | |
3c66a225 HL |
114 | void gigaset_skb_sent(struct bc_state *bcs, struct sk_buff *skb) |
115 | { | |
088ec0cc | 116 | isdn_if *iif = bcs->cs->iif; |
4dd8230a | 117 | unsigned char *ack_header = skb_mac_header(skb); |
3c66a225 HL |
118 | unsigned len; |
119 | isdn_ctrl response; | |
120 | ||
121 | ++bcs->trans_up; | |
122 | ||
123 | if (skb->len) | |
784d5858 TS |
124 | dev_warn(bcs->cs->dev, "%s: skb->len==%d\n", |
125 | __func__, skb->len); | |
3c66a225 | 126 | |
4dd8230a | 127 | len = ack_header[0] + ((unsigned) ack_header[1] << 8); |
3c66a225 | 128 | if (len) { |
784d5858 TS |
129 | gig_dbg(DEBUG_MCMD, "ACKing to LL (id: %d, ch: %d, sz: %u)", |
130 | bcs->cs->myid, bcs->channel, len); | |
3c66a225 HL |
131 | |
132 | response.driver = bcs->cs->myid; | |
133 | response.command = ISDN_STAT_BSENT; | |
134 | response.arg = bcs->channel; | |
135 | response.parm.length = len; | |
088ec0cc | 136 | iif->statcallb(&response); |
3c66a225 HL |
137 | } |
138 | } | |
139 | EXPORT_SYMBOL_GPL(gigaset_skb_sent); | |
140 | ||
088ec0cc TS |
141 | /** |
142 | * gigaset_skb_rcvd() - pass received skb to LL | |
143 | * @bcs: B channel descriptor structure. | |
144 | * @skb: received data. | |
145 | * | |
146 | * Called by hardware module {bas,ser,usb}_gigaset when user data has | |
147 | * been successfully received, for passing to the LL. | |
148 | * Warning: skb must not be accessed anymore! | |
149 | */ | |
150 | void gigaset_skb_rcvd(struct bc_state *bcs, struct sk_buff *skb) | |
151 | { | |
152 | isdn_if *iif = bcs->cs->iif; | |
153 | ||
154 | iif->rcvcallb_skb(bcs->cs->myid, bcs->channel, skb); | |
155 | bcs->trans_down++; | |
156 | } | |
157 | EXPORT_SYMBOL_GPL(gigaset_skb_rcvd); | |
158 | ||
159 | /** | |
160 | * gigaset_isdn_rcv_err() - signal receive error | |
161 | * @bcs: B channel descriptor structure. | |
162 | * | |
163 | * Called by hardware module {bas,ser,usb}_gigaset when a receive error | |
164 | * has occurred, for signalling to the LL. | |
165 | */ | |
166 | void gigaset_isdn_rcv_err(struct bc_state *bcs) | |
167 | { | |
168 | isdn_if *iif = bcs->cs->iif; | |
169 | isdn_ctrl response; | |
170 | ||
171 | /* if currently ignoring packets, just count down */ | |
172 | if (bcs->ignore) { | |
173 | bcs->ignore--; | |
174 | return; | |
175 | } | |
176 | ||
177 | /* update statistics */ | |
178 | bcs->corrupted++; | |
179 | ||
180 | /* error -> LL */ | |
181 | gig_dbg(DEBUG_CMD, "sending L1ERR"); | |
182 | response.driver = bcs->cs->myid; | |
183 | response.command = ISDN_STAT_L1ERR; | |
184 | response.arg = bcs->channel; | |
185 | response.parm.errcode = ISDN_STAT_L1ERR_RECV; | |
186 | iif->statcallb(&response); | |
187 | } | |
188 | EXPORT_SYMBOL_GPL(gigaset_isdn_rcv_err); | |
189 | ||
3c66a225 HL |
190 | /* This function will be called by LL to send commands |
191 | * NOTE: LL ignores the returned value, for commands other than ISDN_CMD_IOCTL, | |
192 | * so don't put too much effort into it. | |
193 | */ | |
194 | static int command_from_LL(isdn_ctrl *cntrl) | |
195 | { | |
088ec0cc | 196 | struct cardstate *cs; |
3c66a225 HL |
197 | struct bc_state *bcs; |
198 | int retval = 0; | |
088ec0cc TS |
199 | char **commands; |
200 | int ch; | |
201 | int i; | |
202 | size_t l; | |
3c66a225 | 203 | |
088ec0cc TS |
204 | gig_dbg(DEBUG_CMD, "driver: %d, command: %d, arg: 0x%lx", |
205 | cntrl->driver, cntrl->command, cntrl->arg); | |
206 | ||
207 | cs = gigaset_get_cs_by_id(cntrl->driver); | |
208 | if (cs == NULL) { | |
c8770dca | 209 | pr_err("%s: invalid driver ID (%d)\n", __func__, cntrl->driver); |
3c66a225 HL |
210 | return -ENODEV; |
211 | } | |
088ec0cc | 212 | ch = cntrl->arg & 0xff; |
3c66a225 HL |
213 | |
214 | switch (cntrl->command) { | |
215 | case ISDN_CMD_IOCTL: | |
5002779d | 216 | dev_warn(cs->dev, "ISDN_CMD_IOCTL not supported\n"); |
3c66a225 HL |
217 | return -EINVAL; |
218 | ||
219 | case ISDN_CMD_DIAL: | |
1528b18f | 220 | gig_dbg(DEBUG_CMD, |
088ec0cc | 221 | "ISDN_CMD_DIAL (phone: %s, msn: %s, si1: %d, si2: %d)", |
784d5858 TS |
222 | cntrl->parm.setup.phone, cntrl->parm.setup.eazmsn, |
223 | cntrl->parm.setup.si1, cntrl->parm.setup.si2); | |
3c66a225 | 224 | |
088ec0cc | 225 | if (ch >= cs->channels) { |
5002779d | 226 | dev_err(cs->dev, |
088ec0cc | 227 | "ISDN_CMD_DIAL: invalid channel (%d)\n", ch); |
3c66a225 HL |
228 | return -EINVAL; |
229 | } | |
088ec0cc | 230 | bcs = cs->bcs + ch; |
3c66a225 | 231 | if (!gigaset_get_channel(bcs)) { |
5002779d | 232 | dev_err(cs->dev, "ISDN_CMD_DIAL: channel not free\n"); |
3c66a225 HL |
233 | return -EBUSY; |
234 | } | |
e7752ee2 TS |
235 | switch (bcs->proto2) { |
236 | case L2_HDLC: | |
237 | bcs->rx_bufsize = SBUFSIZE; | |
238 | break; | |
239 | default: /* assume transparent */ | |
240 | bcs->rx_bufsize = TRANSBUFSIZE; | |
241 | } | |
242 | dev_kfree_skb(bcs->rx_skb); | |
243 | gigaset_new_rx_skb(bcs); | |
3c66a225 | 244 | |
088ec0cc TS |
245 | commands = kzalloc(AT_NUM*(sizeof *commands), GFP_ATOMIC); |
246 | if (!commands) { | |
3c66a225 | 247 | gigaset_free_channel(bcs); |
5002779d | 248 | dev_err(cs->dev, "ISDN_CMD_DIAL: out of memory\n"); |
3c66a225 HL |
249 | return -ENOMEM; |
250 | } | |
3c66a225 | 251 | |
088ec0cc TS |
252 | l = 3 + strlen(cntrl->parm.setup.phone); |
253 | commands[AT_DIAL] = kmalloc(l, GFP_ATOMIC); | |
254 | if (!commands[AT_DIAL]) | |
255 | goto oom; | |
256 | if (cntrl->parm.setup.phone[0] == '*' && | |
257 | cntrl->parm.setup.phone[1] == '*') { | |
258 | /* internal call: translate ** prefix to CTP value */ | |
259 | commands[AT_TYPE] = kstrdup("^SCTP=0\r", GFP_ATOMIC); | |
260 | if (!commands[AT_TYPE]) | |
261 | goto oom; | |
262 | snprintf(commands[AT_DIAL], l, | |
263 | "D%s\r", cntrl->parm.setup.phone+2); | |
264 | } else { | |
265 | commands[AT_TYPE] = kstrdup("^SCTP=1\r", GFP_ATOMIC); | |
266 | if (!commands[AT_TYPE]) | |
267 | goto oom; | |
268 | snprintf(commands[AT_DIAL], l, | |
269 | "D%s\r", cntrl->parm.setup.phone); | |
270 | } | |
271 | ||
272 | l = strlen(cntrl->parm.setup.eazmsn); | |
273 | if (l) { | |
274 | l += 8; | |
275 | commands[AT_MSN] = kmalloc(l, GFP_ATOMIC); | |
276 | if (!commands[AT_MSN]) | |
277 | goto oom; | |
278 | snprintf(commands[AT_MSN], l, "^SMSN=%s\r", | |
279 | cntrl->parm.setup.eazmsn); | |
280 | } | |
281 | ||
282 | switch (cntrl->parm.setup.si1) { | |
283 | case 1: /* audio */ | |
284 | /* BC = 9090A3: 3.1 kHz audio, A-law */ | |
285 | commands[AT_BC] = kstrdup("^SBC=9090A3\r", GFP_ATOMIC); | |
286 | if (!commands[AT_BC]) | |
287 | goto oom; | |
288 | break; | |
289 | case 7: /* data */ | |
290 | default: /* hope the app knows what it is doing */ | |
291 | /* BC = 8890: unrestricted digital information */ | |
292 | commands[AT_BC] = kstrdup("^SBC=8890\r", GFP_ATOMIC); | |
293 | if (!commands[AT_BC]) | |
294 | goto oom; | |
295 | } | |
296 | /* ToDo: other si1 values, inspect si2, set HLC/LLC */ | |
297 | ||
298 | commands[AT_PROTO] = kmalloc(9, GFP_ATOMIC); | |
299 | if (!commands[AT_PROTO]) | |
300 | goto oom; | |
301 | snprintf(commands[AT_PROTO], 9, "^SBPR=%u\r", bcs->proto2); | |
302 | ||
303 | commands[AT_ISO] = kmalloc(9, GFP_ATOMIC); | |
304 | if (!commands[AT_ISO]) | |
305 | goto oom; | |
306 | snprintf(commands[AT_ISO], 9, "^SISO=%u\r", | |
307 | (unsigned) bcs->channel + 1); | |
308 | ||
309 | if (!gigaset_add_event(cs, &bcs->at_state, EV_DIAL, commands, | |
4d1ff582 | 310 | bcs->at_state.seq_index, NULL)) { |
088ec0cc TS |
311 | for (i = 0; i < AT_NUM; ++i) |
312 | kfree(commands[i]); | |
313 | kfree(commands); | |
3c66a225 HL |
314 | gigaset_free_channel(bcs); |
315 | return -ENOMEM; | |
316 | } | |
3c66a225 HL |
317 | gigaset_schedule_event(cs); |
318 | break; | |
088ec0cc | 319 | case ISDN_CMD_ACCEPTD: |
1528b18f | 320 | gig_dbg(DEBUG_CMD, "ISDN_CMD_ACCEPTD"); |
088ec0cc | 321 | if (ch >= cs->channels) { |
5002779d | 322 | dev_err(cs->dev, |
088ec0cc | 323 | "ISDN_CMD_ACCEPTD: invalid channel (%d)\n", ch); |
3c66a225 HL |
324 | return -EINVAL; |
325 | } | |
088ec0cc | 326 | bcs = cs->bcs + ch; |
e7752ee2 TS |
327 | switch (bcs->proto2) { |
328 | case L2_HDLC: | |
329 | bcs->rx_bufsize = SBUFSIZE; | |
330 | break; | |
331 | default: /* assume transparent */ | |
332 | bcs->rx_bufsize = TRANSBUFSIZE; | |
333 | } | |
334 | dev_kfree_skb(bcs->rx_skb); | |
335 | gigaset_new_rx_skb(bcs); | |
088ec0cc TS |
336 | if (!gigaset_add_event(cs, &bcs->at_state, |
337 | EV_ACCEPT, NULL, 0, NULL)) | |
3c66a225 | 338 | return -ENOMEM; |
3c66a225 HL |
339 | gigaset_schedule_event(cs); |
340 | ||
3c66a225 HL |
341 | break; |
342 | case ISDN_CMD_HANGUP: | |
1528b18f | 343 | gig_dbg(DEBUG_CMD, "ISDN_CMD_HANGUP"); |
088ec0cc | 344 | if (ch >= cs->channels) { |
5002779d | 345 | dev_err(cs->dev, |
088ec0cc | 346 | "ISDN_CMD_HANGUP: invalid channel (%d)\n", ch); |
3c66a225 HL |
347 | return -EINVAL; |
348 | } | |
088ec0cc TS |
349 | bcs = cs->bcs + ch; |
350 | if (!gigaset_add_event(cs, &bcs->at_state, | |
351 | EV_HUP, NULL, 0, NULL)) | |
3c66a225 | 352 | return -ENOMEM; |
3c66a225 HL |
353 | gigaset_schedule_event(cs); |
354 | ||
355 | break; | |
088ec0cc TS |
356 | case ISDN_CMD_CLREAZ: /* Do not signal incoming signals */ |
357 | dev_info(cs->dev, "ignoring ISDN_CMD_CLREAZ\n"); | |
3c66a225 | 358 | break; |
088ec0cc TS |
359 | case ISDN_CMD_SETEAZ: /* Signal incoming calls for given MSN */ |
360 | dev_info(cs->dev, "ignoring ISDN_CMD_SETEAZ (%s)\n", | |
361 | cntrl->parm.num); | |
3c66a225 | 362 | break; |
917f5085 | 363 | case ISDN_CMD_SETL2: /* Set L2 to given protocol */ |
088ec0cc | 364 | if (ch >= cs->channels) { |
5002779d | 365 | dev_err(cs->dev, |
088ec0cc | 366 | "ISDN_CMD_SETL2: invalid channel (%d)\n", ch); |
3c66a225 HL |
367 | return -EINVAL; |
368 | } | |
088ec0cc TS |
369 | bcs = cs->bcs + ch; |
370 | if (bcs->chstate & CHS_D_UP) { | |
371 | dev_err(cs->dev, | |
372 | "ISDN_CMD_SETL2: channel active (%d)\n", ch); | |
373 | return -EINVAL; | |
374 | } | |
375 | switch (cntrl->arg >> 8) { | |
376 | case ISDN_PROTO_L2_HDLC: | |
377 | gig_dbg(DEBUG_CMD, "ISDN_CMD_SETL2: setting L2_HDLC"); | |
378 | bcs->proto2 = L2_HDLC; | |
379 | break; | |
380 | case ISDN_PROTO_L2_TRANS: | |
381 | gig_dbg(DEBUG_CMD, "ISDN_CMD_SETL2: setting L2_VOICE"); | |
382 | bcs->proto2 = L2_VOICE; | |
383 | break; | |
384 | default: | |
385 | dev_err(cs->dev, | |
386 | "ISDN_CMD_SETL2: unsupported protocol (%lu)\n", | |
387 | cntrl->arg >> 8); | |
388 | return -EINVAL; | |
3c66a225 | 389 | } |
3c66a225 | 390 | break; |
917f5085 | 391 | case ISDN_CMD_SETL3: /* Set L3 to given protocol */ |
1528b18f | 392 | gig_dbg(DEBUG_CMD, "ISDN_CMD_SETL3"); |
088ec0cc | 393 | if (ch >= cs->channels) { |
5002779d | 394 | dev_err(cs->dev, |
088ec0cc | 395 | "ISDN_CMD_SETL3: invalid channel (%d)\n", ch); |
3c66a225 HL |
396 | return -EINVAL; |
397 | } | |
398 | ||
399 | if (cntrl->arg >> 8 != ISDN_PROTO_L3_TRANS) { | |
5002779d | 400 | dev_err(cs->dev, |
088ec0cc | 401 | "ISDN_CMD_SETL3: unsupported protocol (%lu)\n", |
5002779d | 402 | cntrl->arg >> 8); |
3c66a225 HL |
403 | return -EINVAL; |
404 | } | |
405 | ||
406 | break; | |
1528b18f | 407 | |
3c66a225 | 408 | default: |
1528b18f | 409 | gig_dbg(DEBUG_CMD, "unknown command %d from LL", |
5002779d | 410 | cntrl->command); |
3c66a225 HL |
411 | return -EINVAL; |
412 | } | |
413 | ||
414 | return retval; | |
088ec0cc TS |
415 | |
416 | oom: | |
417 | dev_err(bcs->cs->dev, "out of memory\n"); | |
418 | for (i = 0; i < AT_NUM; ++i) | |
419 | kfree(commands[i]); | |
54438f9d TS |
420 | kfree(commands); |
421 | gigaset_free_channel(bcs); | |
088ec0cc | 422 | return -ENOMEM; |
3c66a225 HL |
423 | } |
424 | ||
088ec0cc | 425 | static void gigaset_i4l_cmd(struct cardstate *cs, int cmd) |
3c66a225 | 426 | { |
088ec0cc | 427 | isdn_if *iif = cs->iif; |
3c66a225 HL |
428 | isdn_ctrl command; |
429 | ||
430 | command.driver = cs->myid; | |
431 | command.command = cmd; | |
432 | command.arg = 0; | |
088ec0cc | 433 | iif->statcallb(&command); |
3c66a225 HL |
434 | } |
435 | ||
088ec0cc | 436 | static void gigaset_i4l_channel_cmd(struct bc_state *bcs, int cmd) |
3c66a225 | 437 | { |
088ec0cc | 438 | isdn_if *iif = bcs->cs->iif; |
3c66a225 HL |
439 | isdn_ctrl command; |
440 | ||
441 | command.driver = bcs->cs->myid; | |
442 | command.command = cmd; | |
443 | command.arg = bcs->channel; | |
088ec0cc | 444 | iif->statcallb(&command); |
3c66a225 HL |
445 | } |
446 | ||
1cec9727 TS |
447 | /** |
448 | * gigaset_isdn_icall() - signal incoming call | |
449 | * @at_state: connection state structure. | |
450 | * | |
451 | * Called by main module to notify the LL that an incoming call has been | |
452 | * received. @at_state contains the parameters of the call. | |
453 | * | |
454 | * Return value: call disposition (ICALL_*) | |
455 | */ | |
3c66a225 HL |
456 | int gigaset_isdn_icall(struct at_state_t *at_state) |
457 | { | |
458 | struct cardstate *cs = at_state->cs; | |
459 | struct bc_state *bcs = at_state->bcs; | |
088ec0cc | 460 | isdn_if *iif = cs->iif; |
3c66a225 HL |
461 | isdn_ctrl response; |
462 | int retval; | |
463 | ||
464 | /* fill ICALL structure */ | |
465 | response.parm.setup.si1 = 0; /* default: unknown */ | |
466 | response.parm.setup.si2 = 0; | |
d9ba9c91 | 467 | response.parm.setup.screen = 0; |
3c66a225 HL |
468 | response.parm.setup.plan = 0; |
469 | if (!at_state->str_var[STR_ZBC]) { | |
470 | /* no BC (internal call): assume speech, A-law */ | |
471 | response.parm.setup.si1 = 1; | |
472 | } else if (!strcmp(at_state->str_var[STR_ZBC], "8890")) { | |
473 | /* unrestricted digital information */ | |
474 | response.parm.setup.si1 = 7; | |
475 | } else if (!strcmp(at_state->str_var[STR_ZBC], "8090A3")) { | |
476 | /* speech, A-law */ | |
477 | response.parm.setup.si1 = 1; | |
478 | } else if (!strcmp(at_state->str_var[STR_ZBC], "9090A3")) { | |
479 | /* 3,1 kHz audio, A-law */ | |
480 | response.parm.setup.si1 = 1; | |
481 | response.parm.setup.si2 = 2; | |
482 | } else { | |
784d5858 | 483 | dev_warn(cs->dev, "RING ignored - unsupported BC %s\n", |
3c66a225 HL |
484 | at_state->str_var[STR_ZBC]); |
485 | return ICALL_IGNORE; | |
486 | } | |
487 | if (at_state->str_var[STR_NMBR]) { | |
d9ba9c91 TS |
488 | strlcpy(response.parm.setup.phone, at_state->str_var[STR_NMBR], |
489 | sizeof response.parm.setup.phone); | |
3c66a225 HL |
490 | } else |
491 | response.parm.setup.phone[0] = 0; | |
492 | if (at_state->str_var[STR_ZCPN]) { | |
d9ba9c91 TS |
493 | strlcpy(response.parm.setup.eazmsn, at_state->str_var[STR_ZCPN], |
494 | sizeof response.parm.setup.eazmsn); | |
3c66a225 HL |
495 | } else |
496 | response.parm.setup.eazmsn[0] = 0; | |
497 | ||
498 | if (!bcs) { | |
784d5858 | 499 | dev_notice(cs->dev, "no channel for incoming call\n"); |
3c66a225 | 500 | response.command = ISDN_STAT_ICALLW; |
d9ba9c91 | 501 | response.arg = 0; |
3c66a225 | 502 | } else { |
784d5858 | 503 | gig_dbg(DEBUG_CMD, "Sending ICALL"); |
3c66a225 | 504 | response.command = ISDN_STAT_ICALL; |
d9ba9c91 | 505 | response.arg = bcs->channel; |
3c66a225 HL |
506 | } |
507 | response.driver = cs->myid; | |
088ec0cc | 508 | retval = iif->statcallb(&response); |
784d5858 | 509 | gig_dbg(DEBUG_CMD, "Response: %d", retval); |
3c66a225 HL |
510 | switch (retval) { |
511 | case 0: /* no takers */ | |
512 | return ICALL_IGNORE; | |
513 | case 1: /* alerting */ | |
514 | bcs->chstate |= CHS_NOTIFY_LL; | |
515 | return ICALL_ACCEPT; | |
516 | case 2: /* reject */ | |
517 | return ICALL_REJECT; | |
518 | case 3: /* incomplete */ | |
784d5858 TS |
519 | dev_warn(cs->dev, |
520 | "LL requested unsupported feature: Incomplete Number\n"); | |
3c66a225 HL |
521 | return ICALL_IGNORE; |
522 | case 4: /* proceeding */ | |
523 | /* Gigaset will send ALERTING anyway. | |
524 | * There doesn't seem to be a way to avoid this. | |
525 | */ | |
526 | return ICALL_ACCEPT; | |
527 | case 5: /* deflect */ | |
784d5858 TS |
528 | dev_warn(cs->dev, |
529 | "LL requested unsupported feature: Call Deflection\n"); | |
3c66a225 HL |
530 | return ICALL_IGNORE; |
531 | default: | |
784d5858 | 532 | dev_err(cs->dev, "LL error %d on ICALL\n", retval); |
3c66a225 HL |
533 | return ICALL_IGNORE; |
534 | } | |
535 | } | |
536 | ||
088ec0cc TS |
537 | /** |
538 | * gigaset_isdn_connD() - signal D channel connect | |
539 | * @bcs: B channel descriptor structure. | |
540 | * | |
541 | * Called by main module to notify the LL that the D channel connection has | |
542 | * been established. | |
543 | */ | |
544 | void gigaset_isdn_connD(struct bc_state *bcs) | |
3c66a225 | 545 | { |
088ec0cc TS |
546 | gig_dbg(DEBUG_CMD, "sending DCONN"); |
547 | gigaset_i4l_channel_cmd(bcs, ISDN_STAT_DCONN); | |
548 | } | |
3c66a225 | 549 | |
088ec0cc TS |
550 | /** |
551 | * gigaset_isdn_hupD() - signal D channel hangup | |
552 | * @bcs: B channel descriptor structure. | |
553 | * | |
554 | * Called by main module to notify the LL that the D channel connection has | |
555 | * been shut down. | |
556 | */ | |
557 | void gigaset_isdn_hupD(struct bc_state *bcs) | |
558 | { | |
559 | gig_dbg(DEBUG_CMD, "sending DHUP"); | |
560 | gigaset_i4l_channel_cmd(bcs, ISDN_STAT_DHUP); | |
561 | } | |
562 | ||
563 | /** | |
564 | * gigaset_isdn_connB() - signal B channel connect | |
565 | * @bcs: B channel descriptor structure. | |
566 | * | |
567 | * Called by main module to notify the LL that the B channel connection has | |
568 | * been established. | |
569 | */ | |
570 | void gigaset_isdn_connB(struct bc_state *bcs) | |
571 | { | |
572 | gig_dbg(DEBUG_CMD, "sending BCONN"); | |
573 | gigaset_i4l_channel_cmd(bcs, ISDN_STAT_BCONN); | |
574 | } | |
575 | ||
576 | /** | |
577 | * gigaset_isdn_hupB() - signal B channel hangup | |
578 | * @bcs: B channel descriptor structure. | |
579 | * | |
580 | * Called by main module to notify the LL that the B channel connection has | |
581 | * been shut down. | |
582 | */ | |
583 | void gigaset_isdn_hupB(struct bc_state *bcs) | |
584 | { | |
585 | gig_dbg(DEBUG_CMD, "sending BHUP"); | |
586 | gigaset_i4l_channel_cmd(bcs, ISDN_STAT_BHUP); | |
587 | } | |
588 | ||
589 | /** | |
590 | * gigaset_isdn_start() - signal device availability | |
591 | * @cs: device descriptor structure. | |
592 | * | |
593 | * Called by main module to notify the LL that the device is available for | |
594 | * use. | |
595 | */ | |
596 | void gigaset_isdn_start(struct cardstate *cs) | |
597 | { | |
598 | gig_dbg(DEBUG_CMD, "sending RUN"); | |
599 | gigaset_i4l_cmd(cs, ISDN_STAT_RUN); | |
600 | } | |
601 | ||
602 | /** | |
603 | * gigaset_isdn_stop() - signal device unavailability | |
604 | * @cs: device descriptor structure. | |
605 | * | |
606 | * Called by main module to notify the LL that the device is no longer | |
607 | * available for use. | |
608 | */ | |
609 | void gigaset_isdn_stop(struct cardstate *cs) | |
610 | { | |
611 | gig_dbg(DEBUG_CMD, "sending STOP"); | |
612 | gigaset_i4l_cmd(cs, ISDN_STAT_STOP); | |
613 | } | |
614 | ||
615 | /** | |
bc35b4e3 | 616 | * gigaset_isdn_regdev() - register to LL |
088ec0cc TS |
617 | * @cs: device descriptor structure. |
618 | * @isdnid: device name. | |
619 | * | |
088ec0cc TS |
620 | * Return value: 1 for success, 0 for failure |
621 | */ | |
bc35b4e3 | 622 | int gigaset_isdn_regdev(struct cardstate *cs, const char *isdnid) |
088ec0cc TS |
623 | { |
624 | isdn_if *iif; | |
625 | ||
626 | pr_info("ISDN4Linux interface\n"); | |
627 | ||
628 | iif = kmalloc(sizeof *iif, GFP_KERNEL); | |
629 | if (!iif) { | |
630 | pr_err("out of memory\n"); | |
631 | return 0; | |
632 | } | |
3c66a225 | 633 | |
3c66a225 | 634 | if (snprintf(iif->id, sizeof iif->id, "%s_%u", isdnid, cs->minor_index) |
7226d7c9 TS |
635 | >= sizeof iif->id) { |
636 | pr_err("ID too long: %s\n", isdnid); | |
088ec0cc | 637 | kfree(iif); |
7226d7c9 TS |
638 | return 0; |
639 | } | |
3c66a225 HL |
640 | |
641 | iif->owner = THIS_MODULE; | |
917f5085 | 642 | iif->channels = cs->channels; |
3c66a225 | 643 | iif->maxbufsize = MAX_BUF_SIZE; |
917f5085 | 644 | iif->features = ISDN_FEATURE_L2_TRANS | |
3c66a225 | 645 | ISDN_FEATURE_L2_HDLC | |
3c66a225 | 646 | ISDN_FEATURE_L2_X75I | |
3c66a225 HL |
647 | ISDN_FEATURE_L3_TRANS | |
648 | ISDN_FEATURE_P_EURO; | |
784d5858 | 649 | iif->hl_hdrlen = HW_HDR_LEN; /* Area for storing ack */ |
3c66a225 HL |
650 | iif->command = command_from_LL; |
651 | iif->writebuf_skb = writebuf_from_LL; | |
784d5858 TS |
652 | iif->writecmd = NULL; /* Don't support isdnctrl */ |
653 | iif->readstat = NULL; /* Don't support isdnctrl */ | |
654 | iif->rcvcallb_skb = NULL; /* Will be set by LL */ | |
655 | iif->statcallb = NULL; /* Will be set by LL */ | |
3c66a225 | 656 | |
7226d7c9 TS |
657 | if (!register_isdn(iif)) { |
658 | pr_err("register_isdn failed\n"); | |
088ec0cc | 659 | kfree(iif); |
3c66a225 | 660 | return 0; |
7226d7c9 | 661 | } |
3c66a225 | 662 | |
088ec0cc | 663 | cs->iif = iif; |
784d5858 | 664 | cs->myid = iif->channels; /* Set my device id */ |
088ec0cc | 665 | cs->hw_hdr_len = HW_HDR_LEN; |
3c66a225 HL |
666 | return 1; |
667 | } | |
088ec0cc TS |
668 | |
669 | /** | |
bc35b4e3 | 670 | * gigaset_isdn_unregdev() - unregister device from LL |
088ec0cc | 671 | * @cs: device descriptor structure. |
088ec0cc | 672 | */ |
bc35b4e3 | 673 | void gigaset_isdn_unregdev(struct cardstate *cs) |
088ec0cc TS |
674 | { |
675 | gig_dbg(DEBUG_CMD, "sending UNLOAD"); | |
676 | gigaset_i4l_cmd(cs, ISDN_STAT_UNLOAD); | |
677 | kfree(cs->iif); | |
678 | cs->iif = NULL; | |
679 | } | |
bc35b4e3 TS |
680 | |
681 | /** | |
682 | * gigaset_isdn_regdrv() - register driver to LL | |
683 | */ | |
684 | void gigaset_isdn_regdrv(void) | |
685 | { | |
686 | /* nothing to do */ | |
687 | } | |
688 | ||
689 | /** | |
690 | * gigaset_isdn_unregdrv() - unregister driver from LL | |
691 | */ | |
692 | void gigaset_isdn_unregdrv(void) | |
693 | { | |
694 | /* nothing to do */ | |
695 | } |