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7bb5fdc2 TS |
1 | /* |
2 | * Kernel CAPI interface for the Gigaset driver | |
3 | * | |
4 | * Copyright (c) 2009 by Tilman Schmidt <tilman@imap.cc>. | |
5 | * | |
6 | * ===================================================================== | |
7 | * This program is free software; you can redistribute it and/or | |
8 | * modify it under the terms of the GNU General Public License as | |
9 | * published by the Free Software Foundation; either version 2 of | |
10 | * the License, or (at your option) any later version. | |
11 | * ===================================================================== | |
12 | */ | |
13 | ||
14 | #include "gigaset.h" | |
9a58a80a AD |
15 | #include <linux/proc_fs.h> |
16 | #include <linux/seq_file.h> | |
8e618aad | 17 | #include <linux/ratelimit.h> |
7bb5fdc2 TS |
18 | #include <linux/isdn/capilli.h> |
19 | #include <linux/isdn/capicmd.h> | |
20 | #include <linux/isdn/capiutil.h> | |
5d76fc21 | 21 | #include <linux/export.h> |
7bb5fdc2 TS |
22 | |
23 | /* missing from kernelcapi.h */ | |
24 | #define CapiNcpiNotSupportedByProtocol 0x0001 | |
25 | #define CapiFlagsNotSupportedByProtocol 0x0002 | |
26 | #define CapiAlertAlreadySent 0x0003 | |
27 | #define CapiFacilitySpecificFunctionNotSupported 0x3011 | |
28 | ||
29 | /* missing from capicmd.h */ | |
475be4d8 JP |
30 | #define CAPI_CONNECT_IND_BASELEN (CAPI_MSG_BASELEN + 4 + 2 + 8 * 1) |
31 | #define CAPI_CONNECT_ACTIVE_IND_BASELEN (CAPI_MSG_BASELEN + 4 + 3 * 1) | |
32 | #define CAPI_CONNECT_B3_IND_BASELEN (CAPI_MSG_BASELEN + 4 + 1) | |
33 | #define CAPI_CONNECT_B3_ACTIVE_IND_BASELEN (CAPI_MSG_BASELEN + 4 + 1) | |
34 | #define CAPI_DATA_B3_REQ_LEN64 (CAPI_MSG_BASELEN + 4 + 4 + 2 + 2 + 2 + 8) | |
35 | #define CAPI_DATA_B3_CONF_LEN (CAPI_MSG_BASELEN + 4 + 2 + 2) | |
36 | #define CAPI_DISCONNECT_IND_LEN (CAPI_MSG_BASELEN + 4 + 2) | |
37 | #define CAPI_DISCONNECT_B3_IND_BASELEN (CAPI_MSG_BASELEN + 4 + 2 + 1) | |
38 | #define CAPI_FACILITY_CONF_BASELEN (CAPI_MSG_BASELEN + 4 + 2 + 2 + 1) | |
7bb5fdc2 | 39 | /* most _CONF messages contain only Controller/PLCI/NCCI and Info parameters */ |
475be4d8 | 40 | #define CAPI_STDCONF_LEN (CAPI_MSG_BASELEN + 4 + 2) |
7bb5fdc2 TS |
41 | |
42 | #define CAPI_FACILITY_HANDSET 0x0000 | |
43 | #define CAPI_FACILITY_DTMF 0x0001 | |
44 | #define CAPI_FACILITY_V42BIS 0x0002 | |
45 | #define CAPI_FACILITY_SUPPSVC 0x0003 | |
46 | #define CAPI_FACILITY_WAKEUP 0x0004 | |
47 | #define CAPI_FACILITY_LI 0x0005 | |
48 | ||
49 | #define CAPI_SUPPSVC_GETSUPPORTED 0x0000 | |
18c2259c | 50 | #define CAPI_SUPPSVC_LISTEN 0x0001 |
7bb5fdc2 TS |
51 | |
52 | /* missing from capiutil.h */ | |
53 | #define CAPIMSG_PLCI_PART(m) CAPIMSG_U8(m, 9) | |
54 | #define CAPIMSG_NCCI_PART(m) CAPIMSG_U16(m, 10) | |
55 | #define CAPIMSG_HANDLE_REQ(m) CAPIMSG_U16(m, 18) /* DATA_B3_REQ/_IND only! */ | |
56 | #define CAPIMSG_FLAGS(m) CAPIMSG_U16(m, 20) | |
57 | #define CAPIMSG_SETCONTROLLER(m, contr) capimsg_setu8(m, 8, contr) | |
58 | #define CAPIMSG_SETPLCI_PART(m, plci) capimsg_setu8(m, 9, plci) | |
59 | #define CAPIMSG_SETNCCI_PART(m, ncci) capimsg_setu16(m, 10, ncci) | |
60 | #define CAPIMSG_SETFLAGS(m, flags) capimsg_setu16(m, 20, flags) | |
61 | ||
62 | /* parameters with differing location in DATA_B3_CONF/_RESP: */ | |
63 | #define CAPIMSG_SETHANDLE_CONF(m, handle) capimsg_setu16(m, 12, handle) | |
64 | #define CAPIMSG_SETINFO_CONF(m, info) capimsg_setu16(m, 14, info) | |
65 | ||
66 | /* Flags (DATA_B3_REQ/_IND) */ | |
67 | #define CAPI_FLAGS_DELIVERY_CONFIRMATION 0x04 | |
68 | #define CAPI_FLAGS_RESERVED (~0x1f) | |
69 | ||
70 | /* buffer sizes */ | |
71 | #define MAX_BC_OCTETS 11 | |
72 | #define MAX_HLC_OCTETS 3 | |
73 | #define MAX_NUMBER_DIGITS 20 | |
74 | #define MAX_FMT_IE_LEN 20 | |
75 | ||
1b4843c5 | 76 | /* values for bcs->apconnstate */ |
7bb5fdc2 TS |
77 | #define APCONN_NONE 0 /* inactive/listening */ |
78 | #define APCONN_SETUP 1 /* connecting */ | |
79 | #define APCONN_ACTIVE 2 /* B channel up */ | |
80 | ||
81 | /* registered application data structure */ | |
82 | struct gigaset_capi_appl { | |
83 | struct list_head ctrlist; | |
84 | struct gigaset_capi_appl *bcnext; | |
85 | u16 id; | |
e7752ee2 | 86 | struct capi_register_params rp; |
7bb5fdc2 TS |
87 | u16 nextMessageNumber; |
88 | u32 listenInfoMask; | |
89 | u32 listenCIPmask; | |
7bb5fdc2 TS |
90 | }; |
91 | ||
92 | /* CAPI specific controller data structure */ | |
93 | struct gigaset_capi_ctr { | |
94 | struct capi_ctr ctr; | |
95 | struct list_head appls; | |
96 | struct sk_buff_head sendqueue; | |
97 | atomic_t sendqlen; | |
98 | /* two _cmsg structures possibly used concurrently: */ | |
99 | _cmsg hcmsg; /* for message composition triggered from hardware */ | |
100 | _cmsg acmsg; /* for dissection of messages sent from application */ | |
475be4d8 JP |
101 | u8 bc_buf[MAX_BC_OCTETS + 1]; |
102 | u8 hlc_buf[MAX_HLC_OCTETS + 1]; | |
103 | u8 cgpty_buf[MAX_NUMBER_DIGITS + 3]; | |
104 | u8 cdpty_buf[MAX_NUMBER_DIGITS + 2]; | |
7bb5fdc2 TS |
105 | }; |
106 | ||
107 | /* CIP Value table (from CAPI 2.0 standard, ch. 6.1) */ | |
108 | static struct { | |
109 | u8 *bc; | |
110 | u8 *hlc; | |
111 | } cip2bchlc[] = { | |
f86936ff TS |
112 | [1] = { "8090A3", NULL }, /* Speech (A-law) */ |
113 | [2] = { "8890", NULL }, /* Unrestricted digital information */ | |
114 | [3] = { "8990", NULL }, /* Restricted digital information */ | |
115 | [4] = { "9090A3", NULL }, /* 3,1 kHz audio (A-law) */ | |
116 | [5] = { "9190", NULL }, /* 7 kHz audio */ | |
117 | [6] = { "9890", NULL }, /* Video */ | |
118 | [7] = { "88C0C6E6", NULL }, /* Packet mode */ | |
119 | [8] = { "8890218F", NULL }, /* 56 kbit/s rate adaptation */ | |
120 | [9] = { "9190A5", NULL }, /* Unrestricted digital information | |
121 | * with tones/announcements */ | |
122 | [16] = { "8090A3", "9181" }, /* Telephony */ | |
123 | [17] = { "9090A3", "9184" }, /* Group 2/3 facsimile */ | |
124 | [18] = { "8890", "91A1" }, /* Group 4 facsimile Class 1 */ | |
125 | [19] = { "8890", "91A4" }, /* Teletex service basic and mixed mode | |
126 | * and Group 4 facsimile service | |
127 | * Classes II and III */ | |
128 | [20] = { "8890", "91A8" }, /* Teletex service basic and | |
129 | * processable mode */ | |
130 | [21] = { "8890", "91B1" }, /* Teletex service basic mode */ | |
131 | [22] = { "8890", "91B2" }, /* International interworking for | |
132 | * Videotex */ | |
133 | [23] = { "8890", "91B5" }, /* Telex */ | |
134 | [24] = { "8890", "91B8" }, /* Message Handling Systems | |
135 | * in accordance with X.400 */ | |
136 | [25] = { "8890", "91C1" }, /* OSI application | |
137 | * in accordance with X.200 */ | |
138 | [26] = { "9190A5", "9181" }, /* 7 kHz telephony */ | |
139 | [27] = { "9190A5", "916001" }, /* Video telephony, first connection */ | |
140 | [28] = { "8890", "916002" }, /* Video telephony, second connection */ | |
7bb5fdc2 TS |
141 | }; |
142 | ||
143 | /* | |
144 | * helper functions | |
145 | * ================ | |
146 | */ | |
147 | ||
148 | /* | |
149 | * emit unsupported parameter warning | |
150 | */ | |
151 | static inline void ignore_cstruct_param(struct cardstate *cs, _cstruct param, | |
475be4d8 | 152 | char *msgname, char *paramname) |
7bb5fdc2 TS |
153 | { |
154 | if (param && *param) | |
155 | dev_warn(cs->dev, "%s: ignoring unsupported parameter: %s\n", | |
156 | msgname, paramname); | |
157 | } | |
158 | ||
7bb5fdc2 TS |
159 | /* |
160 | * convert an IE from Gigaset hex string to ETSI binary representation | |
161 | * including length byte | |
162 | * return value: result length, -1 on error | |
163 | */ | |
164 | static int encode_ie(char *in, u8 *out, int maxlen) | |
165 | { | |
166 | int l = 0; | |
167 | while (*in) { | |
003bdb27 | 168 | if (!isxdigit(in[0]) || !isxdigit(in[1]) || l >= maxlen) |
7bb5fdc2 | 169 | return -1; |
0496b55c | 170 | out[++l] = (hex_to_bin(in[0]) << 4) + hex_to_bin(in[1]); |
7bb5fdc2 TS |
171 | in += 2; |
172 | } | |
173 | out[0] = l; | |
174 | return l; | |
175 | } | |
176 | ||
177 | /* | |
178 | * convert an IE from ETSI binary representation including length byte | |
179 | * to Gigaset hex string | |
180 | */ | |
181 | static void decode_ie(u8 *in, char *out) | |
182 | { | |
183 | int i = *in; | |
184 | while (i-- > 0) { | |
185 | /* ToDo: conversion to upper case necessary? */ | |
186 | *out++ = toupper(hex_asc_hi(*++in)); | |
187 | *out++ = toupper(hex_asc_lo(*in)); | |
188 | } | |
189 | } | |
190 | ||
191 | /* | |
192 | * retrieve application data structure for an application ID | |
193 | */ | |
194 | static inline struct gigaset_capi_appl * | |
195 | get_appl(struct gigaset_capi_ctr *iif, u16 appl) | |
196 | { | |
197 | struct gigaset_capi_appl *ap; | |
198 | ||
199 | list_for_each_entry(ap, &iif->appls, ctrlist) | |
200 | if (ap->id == appl) | |
201 | return ap; | |
202 | return NULL; | |
203 | } | |
204 | ||
205 | /* | |
206 | * dump CAPI message to kernel messages for debugging | |
207 | */ | |
208 | static inline void dump_cmsg(enum debuglevel level, const char *tag, _cmsg *p) | |
209 | { | |
210 | #ifdef CONFIG_GIGASET_DEBUG | |
8e618aad TS |
211 | /* dump at most 20 messages in 20 secs */ |
212 | static DEFINE_RATELIMIT_STATE(msg_dump_ratelimit, 20 * HZ, 20); | |
7bb5fdc2 TS |
213 | _cdebbuf *cdb; |
214 | ||
215 | if (!(gigaset_debuglevel & level)) | |
216 | return; | |
8e618aad TS |
217 | if (!___ratelimit(&msg_dump_ratelimit, tag)) |
218 | return; | |
7bb5fdc2 TS |
219 | |
220 | cdb = capi_cmsg2str(p); | |
221 | if (cdb) { | |
222 | gig_dbg(level, "%s: [%d] %s", tag, p->ApplId, cdb->buf); | |
223 | cdebbuf_free(cdb); | |
224 | } else { | |
225 | gig_dbg(level, "%s: [%d] %s", tag, p->ApplId, | |
226 | capi_cmd2str(p->Command, p->Subcommand)); | |
227 | } | |
228 | #endif | |
229 | } | |
230 | ||
231 | static inline void dump_rawmsg(enum debuglevel level, const char *tag, | |
232 | unsigned char *data) | |
233 | { | |
234 | #ifdef CONFIG_GIGASET_DEBUG | |
235 | char *dbgline; | |
236 | int i, l; | |
237 | ||
238 | if (!(gigaset_debuglevel & level)) | |
239 | return; | |
240 | ||
241 | l = CAPIMSG_LEN(data); | |
242 | if (l < 12) { | |
243 | gig_dbg(level, "%s: ??? LEN=%04d", tag, l); | |
244 | return; | |
245 | } | |
246 | gig_dbg(level, "%s: 0x%02x:0x%02x: ID=%03d #0x%04x LEN=%04d NCCI=0x%x", | |
247 | tag, CAPIMSG_COMMAND(data), CAPIMSG_SUBCOMMAND(data), | |
248 | CAPIMSG_APPID(data), CAPIMSG_MSGID(data), l, | |
249 | CAPIMSG_CONTROL(data)); | |
250 | l -= 12; | |
d721a175 TS |
251 | if (l <= 0) |
252 | return; | |
097933dd TS |
253 | if (l > 64) |
254 | l = 64; /* arbitrary limit */ | |
6da2ec56 | 255 | dbgline = kmalloc_array(3, l, GFP_ATOMIC); |
7bb5fdc2 TS |
256 | if (!dbgline) |
257 | return; | |
258 | for (i = 0; i < l; i++) { | |
475be4d8 JP |
259 | dbgline[3 * i] = hex_asc_hi(data[12 + i]); |
260 | dbgline[3 * i + 1] = hex_asc_lo(data[12 + i]); | |
261 | dbgline[3 * i + 2] = ' '; | |
7bb5fdc2 | 262 | } |
475be4d8 | 263 | dbgline[3 * l - 1] = '\0'; |
7bb5fdc2 TS |
264 | gig_dbg(level, " %s", dbgline); |
265 | kfree(dbgline); | |
266 | if (CAPIMSG_COMMAND(data) == CAPI_DATA_B3 && | |
267 | (CAPIMSG_SUBCOMMAND(data) == CAPI_REQ || | |
6a75342a | 268 | CAPIMSG_SUBCOMMAND(data) == CAPI_IND)) { |
7bb5fdc2 | 269 | l = CAPIMSG_DATALEN(data); |
6a75342a TS |
270 | gig_dbg(level, " DataLength=%d", l); |
271 | if (l <= 0 || !(gigaset_debuglevel & DEBUG_LLDATA)) | |
272 | return; | |
273 | if (l > 64) | |
274 | l = 64; /* arbitrary limit */ | |
6da2ec56 | 275 | dbgline = kmalloc_array(3, l, GFP_ATOMIC); |
7bb5fdc2 TS |
276 | if (!dbgline) |
277 | return; | |
278 | data += CAPIMSG_LEN(data); | |
279 | for (i = 0; i < l; i++) { | |
475be4d8 JP |
280 | dbgline[3 * i] = hex_asc_hi(data[i]); |
281 | dbgline[3 * i + 1] = hex_asc_lo(data[i]); | |
282 | dbgline[3 * i + 2] = ' '; | |
7bb5fdc2 | 283 | } |
475be4d8 | 284 | dbgline[3 * l - 1] = '\0'; |
7bb5fdc2 TS |
285 | gig_dbg(level, " %s", dbgline); |
286 | kfree(dbgline); | |
287 | } | |
288 | #endif | |
289 | } | |
290 | ||
291 | /* | |
292 | * format CAPI IE as string | |
293 | */ | |
294 | ||
6ba6047b | 295 | #ifdef CONFIG_GIGASET_DEBUG |
7bb5fdc2 TS |
296 | static const char *format_ie(const char *ie) |
297 | { | |
475be4d8 | 298 | static char result[3 * MAX_FMT_IE_LEN]; |
7bb5fdc2 TS |
299 | int len, count; |
300 | char *pout = result; | |
301 | ||
302 | if (!ie) | |
303 | return "NULL"; | |
304 | ||
305 | count = len = ie[0]; | |
306 | if (count > MAX_FMT_IE_LEN) | |
475be4d8 | 307 | count = MAX_FMT_IE_LEN - 1; |
7bb5fdc2 TS |
308 | while (count--) { |
309 | *pout++ = hex_asc_hi(*++ie); | |
310 | *pout++ = hex_asc_lo(*ie); | |
311 | *pout++ = ' '; | |
312 | } | |
313 | if (len > MAX_FMT_IE_LEN) { | |
314 | *pout++ = '.'; | |
315 | *pout++ = '.'; | |
316 | *pout++ = '.'; | |
317 | } | |
318 | *--pout = 0; | |
319 | return result; | |
320 | } | |
6ba6047b | 321 | #endif |
7bb5fdc2 | 322 | |
23b36778 TS |
323 | /* |
324 | * emit DATA_B3_CONF message | |
325 | */ | |
326 | static void send_data_b3_conf(struct cardstate *cs, struct capi_ctr *ctr, | |
327 | u16 appl, u16 msgid, int channel, | |
328 | u16 handle, u16 info) | |
329 | { | |
330 | struct sk_buff *cskb; | |
331 | u8 *msg; | |
332 | ||
333 | cskb = alloc_skb(CAPI_DATA_B3_CONF_LEN, GFP_ATOMIC); | |
334 | if (!cskb) { | |
335 | dev_err(cs->dev, "%s: out of memory\n", __func__); | |
336 | return; | |
337 | } | |
338 | /* frequent message, avoid _cmsg overhead */ | |
339 | msg = __skb_put(cskb, CAPI_DATA_B3_CONF_LEN); | |
340 | CAPIMSG_SETLEN(msg, CAPI_DATA_B3_CONF_LEN); | |
341 | CAPIMSG_SETAPPID(msg, appl); | |
342 | CAPIMSG_SETCOMMAND(msg, CAPI_DATA_B3); | |
343 | CAPIMSG_SETSUBCOMMAND(msg, CAPI_CONF); | |
344 | CAPIMSG_SETMSGID(msg, msgid); | |
345 | CAPIMSG_SETCONTROLLER(msg, ctr->cnr); | |
346 | CAPIMSG_SETPLCI_PART(msg, channel); | |
347 | CAPIMSG_SETNCCI_PART(msg, 1); | |
348 | CAPIMSG_SETHANDLE_CONF(msg, handle); | |
349 | CAPIMSG_SETINFO_CONF(msg, info); | |
350 | ||
351 | /* emit message */ | |
352 | dump_rawmsg(DEBUG_MCMD, __func__, msg); | |
353 | capi_ctr_handle_message(ctr, appl, cskb); | |
354 | } | |
355 | ||
7bb5fdc2 TS |
356 | |
357 | /* | |
358 | * driver interface functions | |
359 | * ========================== | |
360 | */ | |
361 | ||
362 | /** | |
363 | * gigaset_skb_sent() - acknowledge transmission of outgoing skb | |
364 | * @bcs: B channel descriptor structure. | |
365 | * @skb: sent data. | |
366 | * | |
367 | * Called by hardware module {bas,ser,usb}_gigaset when the data in a | |
368 | * skb has been successfully sent, for signalling completion to the LL. | |
369 | */ | |
370 | void gigaset_skb_sent(struct bc_state *bcs, struct sk_buff *dskb) | |
371 | { | |
372 | struct cardstate *cs = bcs->cs; | |
373 | struct gigaset_capi_ctr *iif = cs->iif; | |
374 | struct gigaset_capi_appl *ap = bcs->ap; | |
4dd8230a | 375 | unsigned char *req = skb_mac_header(dskb); |
7bb5fdc2 TS |
376 | u16 flags; |
377 | ||
378 | /* update statistics */ | |
379 | ++bcs->trans_up; | |
380 | ||
381 | if (!ap) { | |
7d060ed2 | 382 | gig_dbg(DEBUG_MCMD, "%s: application gone", __func__); |
7bb5fdc2 TS |
383 | return; |
384 | } | |
385 | ||
386 | /* don't send further B3 messages if disconnected */ | |
1b4843c5 | 387 | if (bcs->apconnstate < APCONN_ACTIVE) { |
7d060ed2 | 388 | gig_dbg(DEBUG_MCMD, "%s: disconnected", __func__); |
7bb5fdc2 TS |
389 | return; |
390 | } | |
391 | ||
23b36778 TS |
392 | /* |
393 | * send DATA_B3_CONF if "delivery confirmation" bit was set in request; | |
394 | * otherwise it has already been sent by do_data_b3_req() | |
395 | */ | |
4dd8230a | 396 | flags = CAPIMSG_FLAGS(req); |
23b36778 TS |
397 | if (flags & CAPI_FLAGS_DELIVERY_CONFIRMATION) |
398 | send_data_b3_conf(cs, &iif->ctr, ap->id, CAPIMSG_MSGID(req), | |
399 | bcs->channel + 1, CAPIMSG_HANDLE_REQ(req), | |
400 | (flags & ~CAPI_FLAGS_DELIVERY_CONFIRMATION) ? | |
475be4d8 JP |
401 | CapiFlagsNotSupportedByProtocol : |
402 | CAPI_NOERROR); | |
7bb5fdc2 TS |
403 | } |
404 | EXPORT_SYMBOL_GPL(gigaset_skb_sent); | |
405 | ||
406 | /** | |
407 | * gigaset_skb_rcvd() - pass received skb to LL | |
408 | * @bcs: B channel descriptor structure. | |
409 | * @skb: received data. | |
410 | * | |
411 | * Called by hardware module {bas,ser,usb}_gigaset when user data has | |
412 | * been successfully received, for passing to the LL. | |
413 | * Warning: skb must not be accessed anymore! | |
414 | */ | |
415 | void gigaset_skb_rcvd(struct bc_state *bcs, struct sk_buff *skb) | |
416 | { | |
417 | struct cardstate *cs = bcs->cs; | |
418 | struct gigaset_capi_ctr *iif = cs->iif; | |
419 | struct gigaset_capi_appl *ap = bcs->ap; | |
420 | int len = skb->len; | |
421 | ||
422 | /* update statistics */ | |
423 | bcs->trans_down++; | |
424 | ||
425 | if (!ap) { | |
7d060ed2 TS |
426 | gig_dbg(DEBUG_MCMD, "%s: application gone", __func__); |
427 | dev_kfree_skb_any(skb); | |
7bb5fdc2 TS |
428 | return; |
429 | } | |
430 | ||
431 | /* don't send further B3 messages if disconnected */ | |
1b4843c5 | 432 | if (bcs->apconnstate < APCONN_ACTIVE) { |
7d060ed2 | 433 | gig_dbg(DEBUG_MCMD, "%s: disconnected", __func__); |
4dd8230a | 434 | dev_kfree_skb_any(skb); |
7bb5fdc2 TS |
435 | return; |
436 | } | |
437 | ||
438 | /* | |
439 | * prepend DATA_B3_IND message to payload | |
440 | * Parameters: NCCI = 1, all others 0/unused | |
441 | * frequent message, avoid _cmsg overhead | |
442 | */ | |
443 | skb_push(skb, CAPI_DATA_B3_REQ_LEN); | |
444 | CAPIMSG_SETLEN(skb->data, CAPI_DATA_B3_REQ_LEN); | |
445 | CAPIMSG_SETAPPID(skb->data, ap->id); | |
446 | CAPIMSG_SETCOMMAND(skb->data, CAPI_DATA_B3); | |
447 | CAPIMSG_SETSUBCOMMAND(skb->data, CAPI_IND); | |
448 | CAPIMSG_SETMSGID(skb->data, ap->nextMessageNumber++); | |
449 | CAPIMSG_SETCONTROLLER(skb->data, iif->ctr.cnr); | |
450 | CAPIMSG_SETPLCI_PART(skb->data, bcs->channel + 1); | |
451 | CAPIMSG_SETNCCI_PART(skb->data, 1); | |
452 | /* Data parameter not used */ | |
453 | CAPIMSG_SETDATALEN(skb->data, len); | |
454 | /* Data handle parameter not used */ | |
455 | CAPIMSG_SETFLAGS(skb->data, 0); | |
456 | /* Data64 parameter not present */ | |
457 | ||
458 | /* emit message */ | |
6a75342a | 459 | dump_rawmsg(DEBUG_MCMD, __func__, skb->data); |
7bb5fdc2 TS |
460 | capi_ctr_handle_message(&iif->ctr, ap->id, skb); |
461 | } | |
462 | EXPORT_SYMBOL_GPL(gigaset_skb_rcvd); | |
463 | ||
464 | /** | |
465 | * gigaset_isdn_rcv_err() - signal receive error | |
466 | * @bcs: B channel descriptor structure. | |
467 | * | |
468 | * Called by hardware module {bas,ser,usb}_gigaset when a receive error | |
469 | * has occurred, for signalling to the LL. | |
470 | */ | |
471 | void gigaset_isdn_rcv_err(struct bc_state *bcs) | |
472 | { | |
473 | /* if currently ignoring packets, just count down */ | |
474 | if (bcs->ignore) { | |
475 | bcs->ignore--; | |
476 | return; | |
477 | } | |
478 | ||
479 | /* update statistics */ | |
480 | bcs->corrupted++; | |
481 | ||
482 | /* ToDo: signal error -> LL */ | |
483 | } | |
484 | EXPORT_SYMBOL_GPL(gigaset_isdn_rcv_err); | |
485 | ||
486 | /** | |
487 | * gigaset_isdn_icall() - signal incoming call | |
488 | * @at_state: connection state structure. | |
489 | * | |
490 | * Called by main module at tasklet level to notify the LL that an incoming | |
491 | * call has been received. @at_state contains the parameters of the call. | |
492 | * | |
493 | * Return value: call disposition (ICALL_*) | |
494 | */ | |
495 | int gigaset_isdn_icall(struct at_state_t *at_state) | |
496 | { | |
497 | struct cardstate *cs = at_state->cs; | |
498 | struct bc_state *bcs = at_state->bcs; | |
499 | struct gigaset_capi_ctr *iif = cs->iif; | |
500 | struct gigaset_capi_appl *ap; | |
501 | u32 actCIPmask; | |
502 | struct sk_buff *skb; | |
503 | unsigned int msgsize; | |
1b4843c5 | 504 | unsigned long flags; |
7bb5fdc2 TS |
505 | int i; |
506 | ||
507 | /* | |
508 | * ToDo: signal calls without a free B channel, too | |
509 | * (requires a u8 handle for the at_state structure that can | |
510 | * be stored in the PLCI and used in the CONNECT_RESP message | |
511 | * handler to retrieve it) | |
512 | */ | |
513 | if (!bcs) | |
514 | return ICALL_IGNORE; | |
515 | ||
516 | /* prepare CONNECT_IND message, using B channel number as PLCI */ | |
517 | capi_cmsg_header(&iif->hcmsg, 0, CAPI_CONNECT, CAPI_IND, 0, | |
518 | iif->ctr.cnr | ((bcs->channel + 1) << 8)); | |
519 | ||
520 | /* minimum size, all structs empty */ | |
521 | msgsize = CAPI_CONNECT_IND_BASELEN; | |
522 | ||
523 | /* Bearer Capability (mandatory) */ | |
524 | if (at_state->str_var[STR_ZBC]) { | |
525 | /* pass on BC from Gigaset */ | |
526 | if (encode_ie(at_state->str_var[STR_ZBC], iif->bc_buf, | |
527 | MAX_BC_OCTETS) < 0) { | |
528 | dev_warn(cs->dev, "RING ignored - bad BC %s\n", | |
529 | at_state->str_var[STR_ZBC]); | |
530 | return ICALL_IGNORE; | |
531 | } | |
532 | ||
533 | /* look up corresponding CIP value */ | |
534 | iif->hcmsg.CIPValue = 0; /* default if nothing found */ | |
535 | for (i = 0; i < ARRAY_SIZE(cip2bchlc); i++) | |
536 | if (cip2bchlc[i].bc != NULL && | |
537 | cip2bchlc[i].hlc == NULL && | |
538 | !strcmp(cip2bchlc[i].bc, | |
539 | at_state->str_var[STR_ZBC])) { | |
540 | iif->hcmsg.CIPValue = i; | |
541 | break; | |
542 | } | |
543 | } else { | |
544 | /* no BC (internal call): assume CIP 1 (speech, A-law) */ | |
545 | iif->hcmsg.CIPValue = 1; | |
546 | encode_ie(cip2bchlc[1].bc, iif->bc_buf, MAX_BC_OCTETS); | |
547 | } | |
548 | iif->hcmsg.BC = iif->bc_buf; | |
549 | msgsize += iif->hcmsg.BC[0]; | |
550 | ||
551 | /* High Layer Compatibility (optional) */ | |
552 | if (at_state->str_var[STR_ZHLC]) { | |
553 | /* pass on HLC from Gigaset */ | |
554 | if (encode_ie(at_state->str_var[STR_ZHLC], iif->hlc_buf, | |
555 | MAX_HLC_OCTETS) < 0) { | |
556 | dev_warn(cs->dev, "RING ignored - bad HLC %s\n", | |
557 | at_state->str_var[STR_ZHLC]); | |
558 | return ICALL_IGNORE; | |
559 | } | |
560 | iif->hcmsg.HLC = iif->hlc_buf; | |
561 | msgsize += iif->hcmsg.HLC[0]; | |
562 | ||
563 | /* look up corresponding CIP value */ | |
564 | /* keep BC based CIP value if none found */ | |
565 | if (at_state->str_var[STR_ZBC]) | |
566 | for (i = 0; i < ARRAY_SIZE(cip2bchlc); i++) | |
567 | if (cip2bchlc[i].hlc != NULL && | |
568 | !strcmp(cip2bchlc[i].hlc, | |
569 | at_state->str_var[STR_ZHLC]) && | |
570 | !strcmp(cip2bchlc[i].bc, | |
571 | at_state->str_var[STR_ZBC])) { | |
572 | iif->hcmsg.CIPValue = i; | |
573 | break; | |
574 | } | |
575 | } | |
576 | ||
577 | /* Called Party Number (optional) */ | |
578 | if (at_state->str_var[STR_ZCPN]) { | |
579 | i = strlen(at_state->str_var[STR_ZCPN]); | |
580 | if (i > MAX_NUMBER_DIGITS) { | |
581 | dev_warn(cs->dev, "RING ignored - bad number %s\n", | |
582 | at_state->str_var[STR_ZBC]); | |
583 | return ICALL_IGNORE; | |
584 | } | |
585 | iif->cdpty_buf[0] = i + 1; | |
586 | iif->cdpty_buf[1] = 0x80; /* type / numbering plan unknown */ | |
475be4d8 | 587 | memcpy(iif->cdpty_buf + 2, at_state->str_var[STR_ZCPN], i); |
7bb5fdc2 TS |
588 | iif->hcmsg.CalledPartyNumber = iif->cdpty_buf; |
589 | msgsize += iif->hcmsg.CalledPartyNumber[0]; | |
590 | } | |
591 | ||
592 | /* Calling Party Number (optional) */ | |
593 | if (at_state->str_var[STR_NMBR]) { | |
594 | i = strlen(at_state->str_var[STR_NMBR]); | |
595 | if (i > MAX_NUMBER_DIGITS) { | |
596 | dev_warn(cs->dev, "RING ignored - bad number %s\n", | |
597 | at_state->str_var[STR_ZBC]); | |
598 | return ICALL_IGNORE; | |
599 | } | |
600 | iif->cgpty_buf[0] = i + 2; | |
601 | iif->cgpty_buf[1] = 0x00; /* type / numbering plan unknown */ | |
602 | iif->cgpty_buf[2] = 0x80; /* pres. allowed, not screened */ | |
475be4d8 | 603 | memcpy(iif->cgpty_buf + 3, at_state->str_var[STR_NMBR], i); |
7bb5fdc2 TS |
604 | iif->hcmsg.CallingPartyNumber = iif->cgpty_buf; |
605 | msgsize += iif->hcmsg.CallingPartyNumber[0]; | |
606 | } | |
607 | ||
608 | /* remaining parameters (not supported, always left NULL): | |
609 | * - CalledPartySubaddress | |
610 | * - CallingPartySubaddress | |
611 | * - AdditionalInfo | |
612 | * - BChannelinformation | |
613 | * - Keypadfacility | |
614 | * - Useruserdata | |
615 | * - Facilitydataarray | |
616 | */ | |
617 | ||
618 | gig_dbg(DEBUG_CMD, "icall: PLCI %x CIP %d BC %s", | |
619 | iif->hcmsg.adr.adrPLCI, iif->hcmsg.CIPValue, | |
620 | format_ie(iif->hcmsg.BC)); | |
621 | gig_dbg(DEBUG_CMD, "icall: HLC %s", | |
622 | format_ie(iif->hcmsg.HLC)); | |
623 | gig_dbg(DEBUG_CMD, "icall: CgPty %s", | |
624 | format_ie(iif->hcmsg.CallingPartyNumber)); | |
625 | gig_dbg(DEBUG_CMD, "icall: CdPty %s", | |
626 | format_ie(iif->hcmsg.CalledPartyNumber)); | |
627 | ||
628 | /* scan application list for matching listeners */ | |
1b4843c5 TS |
629 | spin_lock_irqsave(&bcs->aplock, flags); |
630 | if (bcs->ap != NULL || bcs->apconnstate != APCONN_NONE) { | |
631 | dev_warn(cs->dev, "%s: channel not properly cleared (%p/%d)\n", | |
632 | __func__, bcs->ap, bcs->apconnstate); | |
633 | bcs->ap = NULL; | |
634 | bcs->apconnstate = APCONN_NONE; | |
635 | } | |
636 | spin_unlock_irqrestore(&bcs->aplock, flags); | |
7bb5fdc2 TS |
637 | actCIPmask = 1 | (1 << iif->hcmsg.CIPValue); |
638 | list_for_each_entry(ap, &iif->appls, ctrlist) | |
639 | if (actCIPmask & ap->listenCIPmask) { | |
640 | /* build CONNECT_IND message for this application */ | |
641 | iif->hcmsg.ApplId = ap->id; | |
642 | iif->hcmsg.Messagenumber = ap->nextMessageNumber++; | |
643 | ||
644 | skb = alloc_skb(msgsize, GFP_ATOMIC); | |
645 | if (!skb) { | |
646 | dev_err(cs->dev, "%s: out of memory\n", | |
647 | __func__); | |
648 | break; | |
649 | } | |
2bf3a09e TS |
650 | if (capi_cmsg2message(&iif->hcmsg, |
651 | __skb_put(skb, msgsize))) { | |
652 | dev_err(cs->dev, "%s: message parser failure\n", | |
653 | __func__); | |
654 | dev_kfree_skb_any(skb); | |
655 | break; | |
656 | } | |
7bb5fdc2 TS |
657 | dump_cmsg(DEBUG_CMD, __func__, &iif->hcmsg); |
658 | ||
659 | /* add to listeners on this B channel, update state */ | |
1b4843c5 | 660 | spin_lock_irqsave(&bcs->aplock, flags); |
7bb5fdc2 TS |
661 | ap->bcnext = bcs->ap; |
662 | bcs->ap = ap; | |
663 | bcs->chstate |= CHS_NOTIFY_LL; | |
1b4843c5 TS |
664 | bcs->apconnstate = APCONN_SETUP; |
665 | spin_unlock_irqrestore(&bcs->aplock, flags); | |
7bb5fdc2 TS |
666 | |
667 | /* emit message */ | |
668 | capi_ctr_handle_message(&iif->ctr, ap->id, skb); | |
669 | } | |
670 | ||
671 | /* | |
672 | * Return "accept" if any listeners. | |
673 | * Gigaset will send ALERTING. | |
674 | * There doesn't seem to be a way to avoid this. | |
675 | */ | |
676 | return bcs->ap ? ICALL_ACCEPT : ICALL_IGNORE; | |
677 | } | |
678 | ||
679 | /* | |
680 | * send a DISCONNECT_IND message to an application | |
681 | * does not sleep, clobbers the controller's hcmsg structure | |
682 | */ | |
683 | static void send_disconnect_ind(struct bc_state *bcs, | |
684 | struct gigaset_capi_appl *ap, u16 reason) | |
685 | { | |
686 | struct cardstate *cs = bcs->cs; | |
687 | struct gigaset_capi_ctr *iif = cs->iif; | |
688 | struct sk_buff *skb; | |
689 | ||
1b4843c5 | 690 | if (bcs->apconnstate == APCONN_NONE) |
7bb5fdc2 TS |
691 | return; |
692 | ||
693 | capi_cmsg_header(&iif->hcmsg, ap->id, CAPI_DISCONNECT, CAPI_IND, | |
694 | ap->nextMessageNumber++, | |
695 | iif->ctr.cnr | ((bcs->channel + 1) << 8)); | |
696 | iif->hcmsg.Reason = reason; | |
697 | skb = alloc_skb(CAPI_DISCONNECT_IND_LEN, GFP_ATOMIC); | |
698 | if (!skb) { | |
699 | dev_err(cs->dev, "%s: out of memory\n", __func__); | |
700 | return; | |
701 | } | |
2bf3a09e TS |
702 | if (capi_cmsg2message(&iif->hcmsg, |
703 | __skb_put(skb, CAPI_DISCONNECT_IND_LEN))) { | |
704 | dev_err(cs->dev, "%s: message parser failure\n", __func__); | |
705 | dev_kfree_skb_any(skb); | |
706 | return; | |
707 | } | |
7bb5fdc2 | 708 | dump_cmsg(DEBUG_CMD, __func__, &iif->hcmsg); |
7bb5fdc2 TS |
709 | capi_ctr_handle_message(&iif->ctr, ap->id, skb); |
710 | } | |
711 | ||
712 | /* | |
713 | * send a DISCONNECT_B3_IND message to an application | |
714 | * Parameters: NCCI = 1, NCPI empty, Reason_B3 = 0 | |
715 | * does not sleep, clobbers the controller's hcmsg structure | |
716 | */ | |
717 | static void send_disconnect_b3_ind(struct bc_state *bcs, | |
718 | struct gigaset_capi_appl *ap) | |
719 | { | |
720 | struct cardstate *cs = bcs->cs; | |
721 | struct gigaset_capi_ctr *iif = cs->iif; | |
722 | struct sk_buff *skb; | |
723 | ||
724 | /* nothing to do if no logical connection active */ | |
1b4843c5 | 725 | if (bcs->apconnstate < APCONN_ACTIVE) |
7bb5fdc2 | 726 | return; |
1b4843c5 | 727 | bcs->apconnstate = APCONN_SETUP; |
7bb5fdc2 TS |
728 | |
729 | capi_cmsg_header(&iif->hcmsg, ap->id, CAPI_DISCONNECT_B3, CAPI_IND, | |
730 | ap->nextMessageNumber++, | |
731 | iif->ctr.cnr | ((bcs->channel + 1) << 8) | (1 << 16)); | |
732 | skb = alloc_skb(CAPI_DISCONNECT_B3_IND_BASELEN, GFP_ATOMIC); | |
733 | if (!skb) { | |
734 | dev_err(cs->dev, "%s: out of memory\n", __func__); | |
735 | return; | |
736 | } | |
2bf3a09e TS |
737 | if (capi_cmsg2message(&iif->hcmsg, |
738 | __skb_put(skb, CAPI_DISCONNECT_B3_IND_BASELEN))) { | |
739 | dev_err(cs->dev, "%s: message parser failure\n", __func__); | |
740 | dev_kfree_skb_any(skb); | |
741 | return; | |
742 | } | |
7bb5fdc2 TS |
743 | dump_cmsg(DEBUG_CMD, __func__, &iif->hcmsg); |
744 | capi_ctr_handle_message(&iif->ctr, ap->id, skb); | |
745 | } | |
746 | ||
747 | /** | |
748 | * gigaset_isdn_connD() - signal D channel connect | |
749 | * @bcs: B channel descriptor structure. | |
750 | * | |
751 | * Called by main module at tasklet level to notify the LL that the D channel | |
752 | * connection has been established. | |
753 | */ | |
754 | void gigaset_isdn_connD(struct bc_state *bcs) | |
755 | { | |
756 | struct cardstate *cs = bcs->cs; | |
757 | struct gigaset_capi_ctr *iif = cs->iif; | |
1b4843c5 | 758 | struct gigaset_capi_appl *ap; |
7bb5fdc2 TS |
759 | struct sk_buff *skb; |
760 | unsigned int msgsize; | |
1b4843c5 | 761 | unsigned long flags; |
7bb5fdc2 | 762 | |
1b4843c5 TS |
763 | spin_lock_irqsave(&bcs->aplock, flags); |
764 | ap = bcs->ap; | |
7bb5fdc2 | 765 | if (!ap) { |
1b4843c5 | 766 | spin_unlock_irqrestore(&bcs->aplock, flags); |
7d060ed2 | 767 | gig_dbg(DEBUG_CMD, "%s: application gone", __func__); |
7bb5fdc2 TS |
768 | return; |
769 | } | |
1b4843c5 TS |
770 | if (bcs->apconnstate == APCONN_NONE) { |
771 | spin_unlock_irqrestore(&bcs->aplock, flags); | |
772 | dev_warn(cs->dev, "%s: application %u not connected\n", | |
773 | __func__, ap->id); | |
774 | return; | |
775 | } | |
776 | spin_unlock_irqrestore(&bcs->aplock, flags); | |
7bb5fdc2 TS |
777 | while (ap->bcnext) { |
778 | /* this should never happen */ | |
779 | dev_warn(cs->dev, "%s: dropping extra application %u\n", | |
780 | __func__, ap->bcnext->id); | |
781 | send_disconnect_ind(bcs, ap->bcnext, | |
782 | CapiCallGivenToOtherApplication); | |
783 | ap->bcnext = ap->bcnext->bcnext; | |
784 | } | |
7bb5fdc2 TS |
785 | |
786 | /* prepare CONNECT_ACTIVE_IND message | |
787 | * Note: LLC not supported by device | |
788 | */ | |
789 | capi_cmsg_header(&iif->hcmsg, ap->id, CAPI_CONNECT_ACTIVE, CAPI_IND, | |
790 | ap->nextMessageNumber++, | |
791 | iif->ctr.cnr | ((bcs->channel + 1) << 8)); | |
792 | ||
793 | /* minimum size, all structs empty */ | |
794 | msgsize = CAPI_CONNECT_ACTIVE_IND_BASELEN; | |
795 | ||
796 | /* ToDo: set parameter: Connected number | |
797 | * (requires ev-layer state machine extension to collect | |
798 | * ZCON device reply) | |
799 | */ | |
800 | ||
801 | /* build and emit CONNECT_ACTIVE_IND message */ | |
802 | skb = alloc_skb(msgsize, GFP_ATOMIC); | |
803 | if (!skb) { | |
804 | dev_err(cs->dev, "%s: out of memory\n", __func__); | |
805 | return; | |
806 | } | |
2bf3a09e TS |
807 | if (capi_cmsg2message(&iif->hcmsg, __skb_put(skb, msgsize))) { |
808 | dev_err(cs->dev, "%s: message parser failure\n", __func__); | |
809 | dev_kfree_skb_any(skb); | |
810 | return; | |
811 | } | |
7bb5fdc2 TS |
812 | dump_cmsg(DEBUG_CMD, __func__, &iif->hcmsg); |
813 | capi_ctr_handle_message(&iif->ctr, ap->id, skb); | |
814 | } | |
815 | ||
816 | /** | |
817 | * gigaset_isdn_hupD() - signal D channel hangup | |
818 | * @bcs: B channel descriptor structure. | |
819 | * | |
820 | * Called by main module at tasklet level to notify the LL that the D channel | |
821 | * connection has been shut down. | |
822 | */ | |
823 | void gigaset_isdn_hupD(struct bc_state *bcs) | |
824 | { | |
825 | struct gigaset_capi_appl *ap; | |
1b4843c5 | 826 | unsigned long flags; |
7bb5fdc2 TS |
827 | |
828 | /* | |
829 | * ToDo: pass on reason code reported by device | |
830 | * (requires ev-layer state machine extension to collect | |
831 | * ZCAU device reply) | |
832 | */ | |
1b4843c5 TS |
833 | spin_lock_irqsave(&bcs->aplock, flags); |
834 | while (bcs->ap != NULL) { | |
835 | ap = bcs->ap; | |
836 | bcs->ap = ap->bcnext; | |
837 | spin_unlock_irqrestore(&bcs->aplock, flags); | |
7bb5fdc2 TS |
838 | send_disconnect_b3_ind(bcs, ap); |
839 | send_disconnect_ind(bcs, ap, 0); | |
1b4843c5 | 840 | spin_lock_irqsave(&bcs->aplock, flags); |
7bb5fdc2 | 841 | } |
1b4843c5 TS |
842 | bcs->apconnstate = APCONN_NONE; |
843 | spin_unlock_irqrestore(&bcs->aplock, flags); | |
7bb5fdc2 TS |
844 | } |
845 | ||
846 | /** | |
847 | * gigaset_isdn_connB() - signal B channel connect | |
848 | * @bcs: B channel descriptor structure. | |
849 | * | |
850 | * Called by main module at tasklet level to notify the LL that the B channel | |
851 | * connection has been established. | |
852 | */ | |
853 | void gigaset_isdn_connB(struct bc_state *bcs) | |
854 | { | |
855 | struct cardstate *cs = bcs->cs; | |
856 | struct gigaset_capi_ctr *iif = cs->iif; | |
1b4843c5 | 857 | struct gigaset_capi_appl *ap; |
7bb5fdc2 | 858 | struct sk_buff *skb; |
1b4843c5 | 859 | unsigned long flags; |
7bb5fdc2 TS |
860 | unsigned int msgsize; |
861 | u8 command; | |
862 | ||
1b4843c5 TS |
863 | spin_lock_irqsave(&bcs->aplock, flags); |
864 | ap = bcs->ap; | |
7bb5fdc2 | 865 | if (!ap) { |
1b4843c5 | 866 | spin_unlock_irqrestore(&bcs->aplock, flags); |
7d060ed2 | 867 | gig_dbg(DEBUG_CMD, "%s: application gone", __func__); |
7bb5fdc2 TS |
868 | return; |
869 | } | |
1b4843c5 TS |
870 | if (!bcs->apconnstate) { |
871 | spin_unlock_irqrestore(&bcs->aplock, flags); | |
7bb5fdc2 TS |
872 | dev_warn(cs->dev, "%s: application %u not connected\n", |
873 | __func__, ap->id); | |
874 | return; | |
875 | } | |
876 | ||
877 | /* | |
878 | * emit CONNECT_B3_ACTIVE_IND if we already got CONNECT_B3_REQ; | |
879 | * otherwise we have to emit CONNECT_B3_IND first, and follow up with | |
880 | * CONNECT_B3_ACTIVE_IND in reply to CONNECT_B3_RESP | |
881 | * Parameters in both cases always: NCCI = 1, NCPI empty | |
882 | */ | |
1b4843c5 | 883 | if (bcs->apconnstate >= APCONN_ACTIVE) { |
7bb5fdc2 TS |
884 | command = CAPI_CONNECT_B3_ACTIVE; |
885 | msgsize = CAPI_CONNECT_B3_ACTIVE_IND_BASELEN; | |
886 | } else { | |
887 | command = CAPI_CONNECT_B3; | |
888 | msgsize = CAPI_CONNECT_B3_IND_BASELEN; | |
889 | } | |
1b4843c5 TS |
890 | bcs->apconnstate = APCONN_ACTIVE; |
891 | ||
892 | spin_unlock_irqrestore(&bcs->aplock, flags); | |
893 | ||
894 | while (ap->bcnext) { | |
895 | /* this should never happen */ | |
896 | dev_warn(cs->dev, "%s: dropping extra application %u\n", | |
897 | __func__, ap->bcnext->id); | |
898 | send_disconnect_ind(bcs, ap->bcnext, | |
899 | CapiCallGivenToOtherApplication); | |
900 | ap->bcnext = ap->bcnext->bcnext; | |
901 | } | |
902 | ||
7bb5fdc2 TS |
903 | capi_cmsg_header(&iif->hcmsg, ap->id, command, CAPI_IND, |
904 | ap->nextMessageNumber++, | |
905 | iif->ctr.cnr | ((bcs->channel + 1) << 8) | (1 << 16)); | |
906 | skb = alloc_skb(msgsize, GFP_ATOMIC); | |
907 | if (!skb) { | |
908 | dev_err(cs->dev, "%s: out of memory\n", __func__); | |
909 | return; | |
910 | } | |
2bf3a09e TS |
911 | if (capi_cmsg2message(&iif->hcmsg, __skb_put(skb, msgsize))) { |
912 | dev_err(cs->dev, "%s: message parser failure\n", __func__); | |
913 | dev_kfree_skb_any(skb); | |
914 | return; | |
915 | } | |
7bb5fdc2 | 916 | dump_cmsg(DEBUG_CMD, __func__, &iif->hcmsg); |
7bb5fdc2 TS |
917 | capi_ctr_handle_message(&iif->ctr, ap->id, skb); |
918 | } | |
919 | ||
920 | /** | |
921 | * gigaset_isdn_hupB() - signal B channel hangup | |
922 | * @bcs: B channel descriptor structure. | |
923 | * | |
924 | * Called by main module to notify the LL that the B channel connection has | |
925 | * been shut down. | |
926 | */ | |
927 | void gigaset_isdn_hupB(struct bc_state *bcs) | |
928 | { | |
7bb5fdc2 TS |
929 | struct gigaset_capi_appl *ap = bcs->ap; |
930 | ||
931 | /* ToDo: assure order of DISCONNECT_B3_IND and DISCONNECT_IND ? */ | |
932 | ||
933 | if (!ap) { | |
7d060ed2 | 934 | gig_dbg(DEBUG_CMD, "%s: application gone", __func__); |
7bb5fdc2 TS |
935 | return; |
936 | } | |
937 | ||
938 | send_disconnect_b3_ind(bcs, ap); | |
939 | } | |
940 | ||
941 | /** | |
942 | * gigaset_isdn_start() - signal device availability | |
943 | * @cs: device descriptor structure. | |
944 | * | |
945 | * Called by main module to notify the LL that the device is available for | |
946 | * use. | |
947 | */ | |
948 | void gigaset_isdn_start(struct cardstate *cs) | |
949 | { | |
950 | struct gigaset_capi_ctr *iif = cs->iif; | |
951 | ||
952 | /* fill profile data: manufacturer name */ | |
953 | strcpy(iif->ctr.manu, "Siemens"); | |
954 | /* CAPI and device version */ | |
955 | iif->ctr.version.majorversion = 2; /* CAPI 2.0 */ | |
956 | iif->ctr.version.minorversion = 0; | |
957 | /* ToDo: check/assert cs->gotfwver? */ | |
958 | iif->ctr.version.majormanuversion = cs->fwver[0]; | |
959 | iif->ctr.version.minormanuversion = cs->fwver[1]; | |
960 | /* number of B channels supported */ | |
961 | iif->ctr.profile.nbchannel = cs->channels; | |
962 | /* global options: internal controller, supplementary services */ | |
963 | iif->ctr.profile.goptions = 0x11; | |
964 | /* B1 protocols: 64 kbit/s HDLC or transparent */ | |
965 | iif->ctr.profile.support1 = 0x03; | |
966 | /* B2 protocols: transparent only */ | |
967 | /* ToDo: X.75 SLP ? */ | |
968 | iif->ctr.profile.support2 = 0x02; | |
969 | /* B3 protocols: transparent only */ | |
970 | iif->ctr.profile.support3 = 0x01; | |
971 | /* no serial number */ | |
972 | strcpy(iif->ctr.serial, "0"); | |
973 | capi_ctr_ready(&iif->ctr); | |
974 | } | |
975 | ||
976 | /** | |
977 | * gigaset_isdn_stop() - signal device unavailability | |
978 | * @cs: device descriptor structure. | |
979 | * | |
980 | * Called by main module to notify the LL that the device is no longer | |
981 | * available for use. | |
982 | */ | |
983 | void gigaset_isdn_stop(struct cardstate *cs) | |
984 | { | |
985 | struct gigaset_capi_ctr *iif = cs->iif; | |
986 | capi_ctr_down(&iif->ctr); | |
987 | } | |
988 | ||
989 | /* | |
990 | * kernel CAPI callback methods | |
991 | * ============================ | |
992 | */ | |
993 | ||
7bb5fdc2 TS |
994 | /* |
995 | * register CAPI application | |
996 | */ | |
997 | static void gigaset_register_appl(struct capi_ctr *ctr, u16 appl, | |
475be4d8 | 998 | capi_register_params *rp) |
7bb5fdc2 TS |
999 | { |
1000 | struct gigaset_capi_ctr *iif | |
1001 | = container_of(ctr, struct gigaset_capi_ctr, ctr); | |
1002 | struct cardstate *cs = ctr->driverdata; | |
1003 | struct gigaset_capi_appl *ap; | |
1004 | ||
6a75342a TS |
1005 | gig_dbg(DEBUG_CMD, "%s [%u] l3cnt=%u blkcnt=%u blklen=%u", |
1006 | __func__, appl, rp->level3cnt, rp->datablkcnt, rp->datablklen); | |
1007 | ||
7bb5fdc2 TS |
1008 | list_for_each_entry(ap, &iif->appls, ctrlist) |
1009 | if (ap->id == appl) { | |
1010 | dev_notice(cs->dev, | |
1011 | "application %u already registered\n", appl); | |
1012 | return; | |
1013 | } | |
1014 | ||
1015 | ap = kzalloc(sizeof(*ap), GFP_KERNEL); | |
1016 | if (!ap) { | |
1017 | dev_err(cs->dev, "%s: out of memory\n", __func__); | |
1018 | return; | |
1019 | } | |
1020 | ap->id = appl; | |
e7752ee2 | 1021 | ap->rp = *rp; |
7bb5fdc2 TS |
1022 | |
1023 | list_add(&ap->ctrlist, &iif->appls); | |
1b4843c5 TS |
1024 | dev_info(cs->dev, "application %u registered\n", ap->id); |
1025 | } | |
1026 | ||
1027 | /* | |
1028 | * remove CAPI application from channel | |
1029 | * helper function to keep indentation levels down and stay in 80 columns | |
1030 | */ | |
1031 | ||
1032 | static inline void remove_appl_from_channel(struct bc_state *bcs, | |
1033 | struct gigaset_capi_appl *ap) | |
1034 | { | |
1035 | struct cardstate *cs = bcs->cs; | |
1036 | struct gigaset_capi_appl *bcap; | |
1037 | unsigned long flags; | |
1038 | int prevconnstate; | |
1039 | ||
1040 | spin_lock_irqsave(&bcs->aplock, flags); | |
1041 | bcap = bcs->ap; | |
1042 | if (bcap == NULL) { | |
1043 | spin_unlock_irqrestore(&bcs->aplock, flags); | |
1044 | return; | |
1045 | } | |
1046 | ||
1047 | /* check first application on channel */ | |
1048 | if (bcap == ap) { | |
1049 | bcs->ap = ap->bcnext; | |
1050 | if (bcs->ap != NULL) { | |
1051 | spin_unlock_irqrestore(&bcs->aplock, flags); | |
1052 | return; | |
1053 | } | |
1054 | ||
1055 | /* none left, clear channel state */ | |
1056 | prevconnstate = bcs->apconnstate; | |
1057 | bcs->apconnstate = APCONN_NONE; | |
1058 | spin_unlock_irqrestore(&bcs->aplock, flags); | |
1059 | ||
1060 | if (prevconnstate == APCONN_ACTIVE) { | |
1061 | dev_notice(cs->dev, "%s: hanging up channel %u\n", | |
1062 | __func__, bcs->channel); | |
1063 | gigaset_add_event(cs, &bcs->at_state, | |
1064 | EV_HUP, NULL, 0, NULL); | |
1065 | gigaset_schedule_event(cs); | |
1066 | } | |
1067 | return; | |
1068 | } | |
1069 | ||
1070 | /* check remaining list */ | |
1071 | do { | |
1072 | if (bcap->bcnext == ap) { | |
1073 | bcap->bcnext = bcap->bcnext->bcnext; | |
7e27a0ae | 1074 | spin_unlock_irqrestore(&bcs->aplock, flags); |
1b4843c5 TS |
1075 | return; |
1076 | } | |
1077 | bcap = bcap->bcnext; | |
1078 | } while (bcap != NULL); | |
1079 | spin_unlock_irqrestore(&bcs->aplock, flags); | |
7bb5fdc2 TS |
1080 | } |
1081 | ||
1082 | /* | |
1083 | * release CAPI application | |
1084 | */ | |
1085 | static void gigaset_release_appl(struct capi_ctr *ctr, u16 appl) | |
1086 | { | |
1087 | struct gigaset_capi_ctr *iif | |
1088 | = container_of(ctr, struct gigaset_capi_ctr, ctr); | |
1089 | struct cardstate *cs = iif->ctr.driverdata; | |
1090 | struct gigaset_capi_appl *ap, *tmp; | |
1b4843c5 | 1091 | unsigned ch; |
7bb5fdc2 | 1092 | |
6a75342a TS |
1093 | gig_dbg(DEBUG_CMD, "%s [%u]", __func__, appl); |
1094 | ||
7bb5fdc2 TS |
1095 | list_for_each_entry_safe(ap, tmp, &iif->appls, ctrlist) |
1096 | if (ap->id == appl) { | |
1b4843c5 TS |
1097 | /* remove from any channels */ |
1098 | for (ch = 0; ch < cs->channels; ch++) | |
1099 | remove_appl_from_channel(&cs->bcs[ch], ap); | |
1100 | ||
1101 | /* remove from registration list */ | |
7bb5fdc2 TS |
1102 | list_del(&ap->ctrlist); |
1103 | kfree(ap); | |
1b4843c5 | 1104 | dev_info(cs->dev, "application %u released\n", appl); |
7bb5fdc2 | 1105 | } |
7bb5fdc2 TS |
1106 | } |
1107 | ||
1108 | /* | |
1109 | * ===================================================================== | |
1110 | * outgoing CAPI message handler | |
1111 | * ===================================================================== | |
1112 | */ | |
1113 | ||
1114 | /* | |
1115 | * helper function: emit reply message with given Info value | |
1116 | */ | |
1117 | static void send_conf(struct gigaset_capi_ctr *iif, | |
1118 | struct gigaset_capi_appl *ap, | |
1119 | struct sk_buff *skb, | |
1120 | u16 info) | |
1121 | { | |
2bf3a09e TS |
1122 | struct cardstate *cs = iif->ctr.driverdata; |
1123 | ||
7bb5fdc2 TS |
1124 | /* |
1125 | * _CONF replies always only have NCCI and Info parameters | |
1126 | * so they'll fit into the _REQ message skb | |
1127 | */ | |
1128 | capi_cmsg_answer(&iif->acmsg); | |
1129 | iif->acmsg.Info = info; | |
2bf3a09e TS |
1130 | if (capi_cmsg2message(&iif->acmsg, skb->data)) { |
1131 | dev_err(cs->dev, "%s: message parser failure\n", __func__); | |
1132 | dev_kfree_skb_any(skb); | |
1133 | return; | |
1134 | } | |
7bb5fdc2 TS |
1135 | __skb_trim(skb, CAPI_STDCONF_LEN); |
1136 | dump_cmsg(DEBUG_CMD, __func__, &iif->acmsg); | |
1137 | capi_ctr_handle_message(&iif->ctr, ap->id, skb); | |
1138 | } | |
1139 | ||
1140 | /* | |
1141 | * process FACILITY_REQ message | |
1142 | */ | |
1143 | static void do_facility_req(struct gigaset_capi_ctr *iif, | |
1144 | struct gigaset_capi_appl *ap, | |
1145 | struct sk_buff *skb) | |
1146 | { | |
1147 | struct cardstate *cs = iif->ctr.driverdata; | |
6c911916 | 1148 | _cmsg *cmsg = &iif->acmsg; |
7bb5fdc2 TS |
1149 | struct sk_buff *cskb; |
1150 | u8 *pparam; | |
1151 | unsigned int msgsize = CAPI_FACILITY_CONF_BASELEN; | |
1152 | u16 function, info; | |
1153 | static u8 confparam[10]; /* max. 9 octets + length byte */ | |
1154 | ||
1155 | /* decode message */ | |
2bf3a09e TS |
1156 | if (capi_message2cmsg(cmsg, skb->data)) { |
1157 | dev_err(cs->dev, "%s: message parser failure\n", __func__); | |
1158 | dev_kfree_skb_any(skb); | |
1159 | return; | |
1160 | } | |
6c911916 | 1161 | dump_cmsg(DEBUG_CMD, __func__, cmsg); |
7bb5fdc2 TS |
1162 | |
1163 | /* | |
1164 | * Facility Request Parameter is not decoded by capi_message2cmsg() | |
1165 | * encoding depends on Facility Selector | |
1166 | */ | |
6c911916 | 1167 | switch (cmsg->FacilitySelector) { |
7bb5fdc2 TS |
1168 | case CAPI_FACILITY_DTMF: /* ToDo */ |
1169 | info = CapiFacilityNotSupported; | |
1170 | confparam[0] = 2; /* length */ | |
1171 | /* DTMF information: Unknown DTMF request */ | |
1172 | capimsg_setu16(confparam, 1, 2); | |
1173 | break; | |
1174 | ||
1175 | case CAPI_FACILITY_V42BIS: /* not supported */ | |
1176 | info = CapiFacilityNotSupported; | |
1177 | confparam[0] = 2; /* length */ | |
1178 | /* V.42 bis information: not available */ | |
1179 | capimsg_setu16(confparam, 1, 1); | |
1180 | break; | |
1181 | ||
1182 | case CAPI_FACILITY_SUPPSVC: | |
1183 | /* decode Function parameter */ | |
6c911916 | 1184 | pparam = cmsg->FacilityRequestParameter; |
18c2259c | 1185 | if (pparam == NULL || pparam[0] < 2) { |
7bb5fdc2 TS |
1186 | dev_notice(cs->dev, "%s: %s missing\n", "FACILITY_REQ", |
1187 | "Facility Request Parameter"); | |
1188 | send_conf(iif, ap, skb, CapiIllMessageParmCoding); | |
1189 | return; | |
1190 | } | |
1191 | function = CAPIMSG_U16(pparam, 1); | |
1192 | switch (function) { | |
1193 | case CAPI_SUPPSVC_GETSUPPORTED: | |
1194 | info = CapiSuccess; | |
1195 | /* Supplementary Service specific parameter */ | |
1196 | confparam[3] = 6; /* length */ | |
1197 | /* Supplementary services info: Success */ | |
1198 | capimsg_setu16(confparam, 4, CapiSuccess); | |
1199 | /* Supported Services: none */ | |
1200 | capimsg_setu32(confparam, 6, 0); | |
1201 | break; | |
18c2259c TS |
1202 | case CAPI_SUPPSVC_LISTEN: |
1203 | if (pparam[0] < 7 || pparam[3] < 4) { | |
1204 | dev_notice(cs->dev, "%s: %s missing\n", | |
1205 | "FACILITY_REQ", "Notification Mask"); | |
1206 | send_conf(iif, ap, skb, | |
1207 | CapiIllMessageParmCoding); | |
1208 | return; | |
1209 | } | |
1210 | if (CAPIMSG_U32(pparam, 4) != 0) { | |
1211 | dev_notice(cs->dev, | |
475be4d8 JP |
1212 | "%s: unsupported supplementary service notification mask 0x%x\n", |
1213 | "FACILITY_REQ", CAPIMSG_U32(pparam, 4)); | |
18c2259c TS |
1214 | info = CapiFacilitySpecificFunctionNotSupported; |
1215 | confparam[3] = 2; /* length */ | |
1216 | capimsg_setu16(confparam, 4, | |
475be4d8 | 1217 | CapiSupplementaryServiceNotSupported); |
1bdc07eb | 1218 | break; |
18c2259c TS |
1219 | } |
1220 | info = CapiSuccess; | |
1221 | confparam[3] = 2; /* length */ | |
1222 | capimsg_setu16(confparam, 4, CapiSuccess); | |
1223 | break; | |
f86936ff TS |
1224 | |
1225 | /* ToDo: add supported services */ | |
1226 | ||
7bb5fdc2 | 1227 | default: |
18c2259c | 1228 | dev_notice(cs->dev, |
475be4d8 | 1229 | "%s: unsupported supplementary service function 0x%04x\n", |
18c2259c | 1230 | "FACILITY_REQ", function); |
7bb5fdc2 TS |
1231 | info = CapiFacilitySpecificFunctionNotSupported; |
1232 | /* Supplementary Service specific parameter */ | |
1233 | confparam[3] = 2; /* length */ | |
1234 | /* Supplementary services info: not supported */ | |
1235 | capimsg_setu16(confparam, 4, | |
1236 | CapiSupplementaryServiceNotSupported); | |
1237 | } | |
1238 | ||
1239 | /* Facility confirmation parameter */ | |
1240 | confparam[0] = confparam[3] + 3; /* total length */ | |
1241 | /* Function: copy from _REQ message */ | |
1242 | capimsg_setu16(confparam, 1, function); | |
1243 | /* Supplementary Service specific parameter already set above */ | |
1244 | break; | |
1245 | ||
1246 | case CAPI_FACILITY_WAKEUP: /* ToDo */ | |
1247 | info = CapiFacilityNotSupported; | |
1248 | confparam[0] = 2; /* length */ | |
1249 | /* Number of accepted awake request parameters: 0 */ | |
1250 | capimsg_setu16(confparam, 1, 0); | |
1251 | break; | |
1252 | ||
1253 | default: | |
1254 | info = CapiFacilityNotSupported; | |
1255 | confparam[0] = 0; /* empty struct */ | |
1256 | } | |
1257 | ||
1258 | /* send FACILITY_CONF with given Info and confirmation parameter */ | |
2bf3a09e | 1259 | dev_kfree_skb_any(skb); |
6c911916 TS |
1260 | capi_cmsg_answer(cmsg); |
1261 | cmsg->Info = info; | |
1262 | cmsg->FacilityConfirmationParameter = confparam; | |
7bb5fdc2 TS |
1263 | msgsize += confparam[0]; /* length */ |
1264 | cskb = alloc_skb(msgsize, GFP_ATOMIC); | |
1265 | if (!cskb) { | |
1266 | dev_err(cs->dev, "%s: out of memory\n", __func__); | |
1267 | return; | |
1268 | } | |
2bf3a09e TS |
1269 | if (capi_cmsg2message(cmsg, __skb_put(cskb, msgsize))) { |
1270 | dev_err(cs->dev, "%s: message parser failure\n", __func__); | |
1271 | dev_kfree_skb_any(cskb); | |
1272 | return; | |
1273 | } | |
6c911916 TS |
1274 | dump_cmsg(DEBUG_CMD, __func__, cmsg); |
1275 | capi_ctr_handle_message(&iif->ctr, ap->id, cskb); | |
7bb5fdc2 TS |
1276 | } |
1277 | ||
1278 | ||
1279 | /* | |
1280 | * process LISTEN_REQ message | |
1281 | * just store the masks in the application data structure | |
1282 | */ | |
1283 | static void do_listen_req(struct gigaset_capi_ctr *iif, | |
1284 | struct gigaset_capi_appl *ap, | |
1285 | struct sk_buff *skb) | |
1286 | { | |
2bf3a09e TS |
1287 | struct cardstate *cs = iif->ctr.driverdata; |
1288 | ||
7bb5fdc2 | 1289 | /* decode message */ |
2bf3a09e TS |
1290 | if (capi_message2cmsg(&iif->acmsg, skb->data)) { |
1291 | dev_err(cs->dev, "%s: message parser failure\n", __func__); | |
1292 | dev_kfree_skb_any(skb); | |
1293 | return; | |
1294 | } | |
7bb5fdc2 TS |
1295 | dump_cmsg(DEBUG_CMD, __func__, &iif->acmsg); |
1296 | ||
1297 | /* store listening parameters */ | |
1298 | ap->listenInfoMask = iif->acmsg.InfoMask; | |
1299 | ap->listenCIPmask = iif->acmsg.CIPmask; | |
1300 | send_conf(iif, ap, skb, CapiSuccess); | |
1301 | } | |
1302 | ||
1303 | /* | |
1304 | * process ALERT_REQ message | |
1305 | * nothing to do, Gigaset always alerts anyway | |
1306 | */ | |
1307 | static void do_alert_req(struct gigaset_capi_ctr *iif, | |
1308 | struct gigaset_capi_appl *ap, | |
1309 | struct sk_buff *skb) | |
1310 | { | |
2bf3a09e TS |
1311 | struct cardstate *cs = iif->ctr.driverdata; |
1312 | ||
7bb5fdc2 | 1313 | /* decode message */ |
2bf3a09e TS |
1314 | if (capi_message2cmsg(&iif->acmsg, skb->data)) { |
1315 | dev_err(cs->dev, "%s: message parser failure\n", __func__); | |
1316 | dev_kfree_skb_any(skb); | |
1317 | return; | |
1318 | } | |
7bb5fdc2 TS |
1319 | dump_cmsg(DEBUG_CMD, __func__, &iif->acmsg); |
1320 | send_conf(iif, ap, skb, CapiAlertAlreadySent); | |
1321 | } | |
1322 | ||
1323 | /* | |
1324 | * process CONNECT_REQ message | |
1325 | * allocate a B channel, prepare dial commands, queue a DIAL event, | |
1326 | * emit CONNECT_CONF reply | |
1327 | */ | |
1328 | static void do_connect_req(struct gigaset_capi_ctr *iif, | |
1329 | struct gigaset_capi_appl *ap, | |
1330 | struct sk_buff *skb) | |
1331 | { | |
1332 | struct cardstate *cs = iif->ctr.driverdata; | |
1333 | _cmsg *cmsg = &iif->acmsg; | |
1334 | struct bc_state *bcs; | |
1335 | char **commands; | |
1336 | char *s; | |
1337 | u8 *pp; | |
1b4843c5 | 1338 | unsigned long flags; |
1ce368ff | 1339 | int i, l, lbc, lhlc; |
7bb5fdc2 TS |
1340 | u16 info; |
1341 | ||
1342 | /* decode message */ | |
2bf3a09e TS |
1343 | if (capi_message2cmsg(cmsg, skb->data)) { |
1344 | dev_err(cs->dev, "%s: message parser failure\n", __func__); | |
1345 | dev_kfree_skb_any(skb); | |
1346 | return; | |
1347 | } | |
6c911916 | 1348 | dump_cmsg(DEBUG_CMD, __func__, cmsg); |
7bb5fdc2 TS |
1349 | |
1350 | /* get free B channel & construct PLCI */ | |
1351 | bcs = gigaset_get_free_channel(cs); | |
1352 | if (!bcs) { | |
1353 | dev_notice(cs->dev, "%s: no B channel available\n", | |
1354 | "CONNECT_REQ"); | |
1355 | send_conf(iif, ap, skb, CapiNoPlciAvailable); | |
1356 | return; | |
1357 | } | |
1b4843c5 TS |
1358 | spin_lock_irqsave(&bcs->aplock, flags); |
1359 | if (bcs->ap != NULL || bcs->apconnstate != APCONN_NONE) | |
1360 | dev_warn(cs->dev, "%s: channel not properly cleared (%p/%d)\n", | |
1361 | __func__, bcs->ap, bcs->apconnstate); | |
7bb5fdc2 TS |
1362 | ap->bcnext = NULL; |
1363 | bcs->ap = ap; | |
1b4843c5 TS |
1364 | bcs->apconnstate = APCONN_SETUP; |
1365 | spin_unlock_irqrestore(&bcs->aplock, flags); | |
1366 | ||
e7752ee2 TS |
1367 | bcs->rx_bufsize = ap->rp.datablklen; |
1368 | dev_kfree_skb(bcs->rx_skb); | |
1369 | gigaset_new_rx_skb(bcs); | |
7bb5fdc2 TS |
1370 | cmsg->adr.adrPLCI |= (bcs->channel + 1) << 8; |
1371 | ||
1372 | /* build command table */ | |
475be4d8 | 1373 | commands = kzalloc(AT_NUM * (sizeof *commands), GFP_KERNEL); |
7bb5fdc2 TS |
1374 | if (!commands) |
1375 | goto oom; | |
1376 | ||
1377 | /* encode parameter: Called party number */ | |
1378 | pp = cmsg->CalledPartyNumber; | |
1379 | if (pp == NULL || *pp == 0) { | |
1380 | dev_notice(cs->dev, "%s: %s missing\n", | |
1381 | "CONNECT_REQ", "Called party number"); | |
1382 | info = CapiIllMessageParmCoding; | |
1383 | goto error; | |
1384 | } | |
1385 | l = *pp++; | |
1386 | /* check type of number/numbering plan byte */ | |
1387 | switch (*pp) { | |
1388 | case 0x80: /* unknown type / unknown numbering plan */ | |
1389 | case 0x81: /* unknown type / ISDN/Telephony numbering plan */ | |
1390 | break; | |
1391 | default: /* others: warn about potential misinterpretation */ | |
1392 | dev_notice(cs->dev, "%s: %s type/plan 0x%02x unsupported\n", | |
1393 | "CONNECT_REQ", "Called party number", *pp); | |
1394 | } | |
1395 | pp++; | |
1396 | l--; | |
1397 | /* translate "**" internal call prefix to CTP value */ | |
1398 | if (l >= 2 && pp[0] == '*' && pp[1] == '*') { | |
1399 | s = "^SCTP=0\r"; | |
1400 | pp += 2; | |
1401 | l -= 2; | |
1402 | } else { | |
1403 | s = "^SCTP=1\r"; | |
1404 | } | |
1405 | commands[AT_TYPE] = kstrdup(s, GFP_KERNEL); | |
1406 | if (!commands[AT_TYPE]) | |
1407 | goto oom; | |
475be4d8 | 1408 | commands[AT_DIAL] = kmalloc(l + 3, GFP_KERNEL); |
7bb5fdc2 TS |
1409 | if (!commands[AT_DIAL]) |
1410 | goto oom; | |
475be4d8 | 1411 | snprintf(commands[AT_DIAL], l + 3, "D%.*s\r", l, pp); |
7bb5fdc2 TS |
1412 | |
1413 | /* encode parameter: Calling party number */ | |
1414 | pp = cmsg->CallingPartyNumber; | |
1415 | if (pp != NULL && *pp > 0) { | |
1416 | l = *pp++; | |
1417 | ||
1418 | /* check type of number/numbering plan byte */ | |
1419 | /* ToDo: allow for/handle Ext=1? */ | |
1420 | switch (*pp) { | |
1421 | case 0x00: /* unknown type / unknown numbering plan */ | |
1422 | case 0x01: /* unknown type / ISDN/Telephony num. plan */ | |
1423 | break; | |
1424 | default: | |
1425 | dev_notice(cs->dev, | |
1426 | "%s: %s type/plan 0x%02x unsupported\n", | |
1427 | "CONNECT_REQ", "Calling party number", *pp); | |
1428 | } | |
1429 | pp++; | |
1430 | l--; | |
1431 | ||
1432 | /* check presentation indicator */ | |
1433 | if (!l) { | |
1434 | dev_notice(cs->dev, "%s: %s IE truncated\n", | |
1435 | "CONNECT_REQ", "Calling party number"); | |
1436 | info = CapiIllMessageParmCoding; | |
1437 | goto error; | |
1438 | } | |
1439 | switch (*pp & 0xfc) { /* ignore Screening indicator */ | |
1440 | case 0x80: /* Presentation allowed */ | |
1441 | s = "^SCLIP=1\r"; | |
1442 | break; | |
1443 | case 0xa0: /* Presentation restricted */ | |
1444 | s = "^SCLIP=0\r"; | |
1445 | break; | |
1446 | default: | |
1447 | dev_notice(cs->dev, "%s: invalid %s 0x%02x\n", | |
1448 | "CONNECT_REQ", | |
1449 | "Presentation/Screening indicator", | |
1450 | *pp); | |
1451 | s = "^SCLIP=1\r"; | |
1452 | } | |
1453 | commands[AT_CLIP] = kstrdup(s, GFP_KERNEL); | |
1454 | if (!commands[AT_CLIP]) | |
1455 | goto oom; | |
1456 | pp++; | |
1457 | l--; | |
1458 | ||
1459 | if (l) { | |
1460 | /* number */ | |
475be4d8 | 1461 | commands[AT_MSN] = kmalloc(l + 8, GFP_KERNEL); |
7bb5fdc2 TS |
1462 | if (!commands[AT_MSN]) |
1463 | goto oom; | |
475be4d8 | 1464 | snprintf(commands[AT_MSN], l + 8, "^SMSN=%*s\r", l, pp); |
7bb5fdc2 TS |
1465 | } |
1466 | } | |
1467 | ||
1468 | /* check parameter: CIP Value */ | |
6ad34145 | 1469 | if (cmsg->CIPValue >= ARRAY_SIZE(cip2bchlc) || |
7bb5fdc2 TS |
1470 | (cmsg->CIPValue > 0 && cip2bchlc[cmsg->CIPValue].bc == NULL)) { |
1471 | dev_notice(cs->dev, "%s: unknown CIP value %d\n", | |
1472 | "CONNECT_REQ", cmsg->CIPValue); | |
1473 | info = CapiCipValueUnknown; | |
1474 | goto error; | |
1475 | } | |
1476 | ||
1ce368ff TS |
1477 | /* |
1478 | * check/encode parameters: BC & HLC | |
1479 | * must be encoded together as device doesn't accept HLC separately | |
1480 | * explicit parameters override values derived from CIP | |
1481 | */ | |
1482 | ||
1483 | /* determine lengths */ | |
1484 | if (cmsg->BC && cmsg->BC[0]) /* BC specified explicitly */ | |
475be4d8 | 1485 | lbc = 2 * cmsg->BC[0]; |
1ce368ff TS |
1486 | else if (cip2bchlc[cmsg->CIPValue].bc) /* BC derived from CIP */ |
1487 | lbc = strlen(cip2bchlc[cmsg->CIPValue].bc); | |
1488 | else /* no BC */ | |
1489 | lbc = 0; | |
1490 | if (cmsg->HLC && cmsg->HLC[0]) /* HLC specified explicitly */ | |
475be4d8 | 1491 | lhlc = 2 * cmsg->HLC[0]; |
1ce368ff TS |
1492 | else if (cip2bchlc[cmsg->CIPValue].hlc) /* HLC derived from CIP */ |
1493 | lhlc = strlen(cip2bchlc[cmsg->CIPValue].hlc); | |
1494 | else /* no HLC */ | |
1495 | lhlc = 0; | |
1496 | ||
1497 | if (lbc) { | |
1498 | /* have BC: allocate and assemble command string */ | |
1499 | l = lbc + 7; /* "^SBC=" + value + "\r" + null byte */ | |
1500 | if (lhlc) | |
1501 | l += lhlc + 7; /* ";^SHLC=" + value */ | |
7bb5fdc2 TS |
1502 | commands[AT_BC] = kmalloc(l, GFP_KERNEL); |
1503 | if (!commands[AT_BC]) | |
1504 | goto oom; | |
1505 | strcpy(commands[AT_BC], "^SBC="); | |
1ce368ff TS |
1506 | if (cmsg->BC && cmsg->BC[0]) /* BC specified explicitly */ |
1507 | decode_ie(cmsg->BC, commands[AT_BC] + 5); | |
1508 | else /* BC derived from CIP */ | |
1509 | strcpy(commands[AT_BC] + 5, | |
1510 | cip2bchlc[cmsg->CIPValue].bc); | |
1511 | if (lhlc) { | |
1512 | strcpy(commands[AT_BC] + lbc + 5, ";^SHLC="); | |
1513 | if (cmsg->HLC && cmsg->HLC[0]) | |
1514 | /* HLC specified explicitly */ | |
1515 | decode_ie(cmsg->HLC, | |
1516 | commands[AT_BC] + lbc + 12); | |
1517 | else /* HLC derived from CIP */ | |
1518 | strcpy(commands[AT_BC] + lbc + 12, | |
1519 | cip2bchlc[cmsg->CIPValue].hlc); | |
1520 | } | |
7bb5fdc2 | 1521 | strcpy(commands[AT_BC] + l - 2, "\r"); |
1ce368ff TS |
1522 | } else { |
1523 | /* no BC */ | |
1524 | if (lhlc) { | |
1525 | dev_notice(cs->dev, "%s: cannot set HLC without BC\n", | |
1526 | "CONNECT_REQ"); | |
1527 | info = CapiIllMessageParmCoding; /* ? */ | |
1528 | goto error; | |
1529 | } | |
7bb5fdc2 TS |
1530 | } |
1531 | ||
1532 | /* check/encode parameter: B Protocol */ | |
1533 | if (cmsg->BProtocol == CAPI_DEFAULT) { | |
1534 | bcs->proto2 = L2_HDLC; | |
1535 | dev_warn(cs->dev, | |
475be4d8 | 1536 | "B2 Protocol X.75 SLP unsupported, using Transparent\n"); |
7bb5fdc2 TS |
1537 | } else { |
1538 | switch (cmsg->B1protocol) { | |
1539 | case 0: | |
1540 | bcs->proto2 = L2_HDLC; | |
1541 | break; | |
1542 | case 1: | |
278a5829 | 1543 | bcs->proto2 = L2_VOICE; |
7bb5fdc2 TS |
1544 | break; |
1545 | default: | |
1546 | dev_warn(cs->dev, | |
475be4d8 | 1547 | "B1 Protocol %u unsupported, using Transparent\n", |
7bb5fdc2 | 1548 | cmsg->B1protocol); |
278a5829 | 1549 | bcs->proto2 = L2_VOICE; |
7bb5fdc2 TS |
1550 | } |
1551 | if (cmsg->B2protocol != 1) | |
1552 | dev_warn(cs->dev, | |
475be4d8 | 1553 | "B2 Protocol %u unsupported, using Transparent\n", |
7bb5fdc2 TS |
1554 | cmsg->B2protocol); |
1555 | if (cmsg->B3protocol != 0) | |
1556 | dev_warn(cs->dev, | |
475be4d8 | 1557 | "B3 Protocol %u unsupported, using Transparent\n", |
7bb5fdc2 TS |
1558 | cmsg->B3protocol); |
1559 | ignore_cstruct_param(cs, cmsg->B1configuration, | |
475be4d8 | 1560 | "CONNECT_REQ", "B1 Configuration"); |
7bb5fdc2 | 1561 | ignore_cstruct_param(cs, cmsg->B2configuration, |
475be4d8 | 1562 | "CONNECT_REQ", "B2 Configuration"); |
7bb5fdc2 | 1563 | ignore_cstruct_param(cs, cmsg->B3configuration, |
475be4d8 | 1564 | "CONNECT_REQ", "B3 Configuration"); |
7bb5fdc2 TS |
1565 | } |
1566 | commands[AT_PROTO] = kmalloc(9, GFP_KERNEL); | |
1567 | if (!commands[AT_PROTO]) | |
1568 | goto oom; | |
1569 | snprintf(commands[AT_PROTO], 9, "^SBPR=%u\r", bcs->proto2); | |
1570 | ||
1571 | /* ToDo: check/encode remaining parameters */ | |
1572 | ignore_cstruct_param(cs, cmsg->CalledPartySubaddress, | |
475be4d8 | 1573 | "CONNECT_REQ", "Called pty subaddr"); |
7bb5fdc2 | 1574 | ignore_cstruct_param(cs, cmsg->CallingPartySubaddress, |
475be4d8 | 1575 | "CONNECT_REQ", "Calling pty subaddr"); |
7bb5fdc2 | 1576 | ignore_cstruct_param(cs, cmsg->LLC, |
475be4d8 | 1577 | "CONNECT_REQ", "LLC"); |
6c911916 TS |
1578 | if (cmsg->AdditionalInfo != CAPI_DEFAULT) { |
1579 | ignore_cstruct_param(cs, cmsg->BChannelinformation, | |
475be4d8 | 1580 | "CONNECT_REQ", "B Channel Information"); |
6c911916 | 1581 | ignore_cstruct_param(cs, cmsg->Keypadfacility, |
475be4d8 | 1582 | "CONNECT_REQ", "Keypad Facility"); |
6c911916 | 1583 | ignore_cstruct_param(cs, cmsg->Useruserdata, |
475be4d8 | 1584 | "CONNECT_REQ", "User-User Data"); |
6c911916 | 1585 | ignore_cstruct_param(cs, cmsg->Facilitydataarray, |
475be4d8 | 1586 | "CONNECT_REQ", "Facility Data Array"); |
6c911916 | 1587 | } |
7bb5fdc2 TS |
1588 | |
1589 | /* encode parameter: B channel to use */ | |
1590 | commands[AT_ISO] = kmalloc(9, GFP_KERNEL); | |
1591 | if (!commands[AT_ISO]) | |
1592 | goto oom; | |
1593 | snprintf(commands[AT_ISO], 9, "^SISO=%u\r", | |
1594 | (unsigned) bcs->channel + 1); | |
1595 | ||
1596 | /* queue & schedule EV_DIAL event */ | |
1597 | if (!gigaset_add_event(cs, &bcs->at_state, EV_DIAL, commands, | |
1528b18f TS |
1598 | bcs->at_state.seq_index, NULL)) { |
1599 | info = CAPI_MSGOSRESOURCEERR; | |
1600 | goto error; | |
1601 | } | |
7bb5fdc2 | 1602 | gigaset_schedule_event(cs); |
7bb5fdc2 TS |
1603 | send_conf(iif, ap, skb, CapiSuccess); |
1604 | return; | |
1605 | ||
1606 | oom: | |
1607 | dev_err(cs->dev, "%s: out of memory\n", __func__); | |
1608 | info = CAPI_MSGOSRESOURCEERR; | |
1609 | error: | |
1610 | if (commands) | |
1611 | for (i = 0; i < AT_NUM; i++) | |
1612 | kfree(commands[i]); | |
1613 | kfree(commands); | |
1614 | gigaset_free_channel(bcs); | |
1615 | send_conf(iif, ap, skb, info); | |
1616 | } | |
1617 | ||
1618 | /* | |
1619 | * process CONNECT_RESP message | |
1620 | * checks protocol parameters and queues an ACCEPT or HUP event | |
1621 | */ | |
1622 | static void do_connect_resp(struct gigaset_capi_ctr *iif, | |
1623 | struct gigaset_capi_appl *ap, | |
1624 | struct sk_buff *skb) | |
1625 | { | |
1626 | struct cardstate *cs = iif->ctr.driverdata; | |
1627 | _cmsg *cmsg = &iif->acmsg; | |
1628 | struct bc_state *bcs; | |
1629 | struct gigaset_capi_appl *oap; | |
1b4843c5 | 1630 | unsigned long flags; |
7bb5fdc2 TS |
1631 | int channel; |
1632 | ||
1633 | /* decode message */ | |
2bf3a09e TS |
1634 | if (capi_message2cmsg(cmsg, skb->data)) { |
1635 | dev_err(cs->dev, "%s: message parser failure\n", __func__); | |
1636 | dev_kfree_skb_any(skb); | |
1637 | return; | |
1638 | } | |
6c911916 | 1639 | dump_cmsg(DEBUG_CMD, __func__, cmsg); |
4dd8230a | 1640 | dev_kfree_skb_any(skb); |
7bb5fdc2 TS |
1641 | |
1642 | /* extract and check channel number from PLCI */ | |
1643 | channel = (cmsg->adr.adrPLCI >> 8) & 0xff; | |
1644 | if (!channel || channel > cs->channels) { | |
1645 | dev_notice(cs->dev, "%s: invalid %s 0x%02x\n", | |
1646 | "CONNECT_RESP", "PLCI", cmsg->adr.adrPLCI); | |
1647 | return; | |
1648 | } | |
1649 | bcs = cs->bcs + channel - 1; | |
1650 | ||
1651 | switch (cmsg->Reject) { | |
1652 | case 0: /* Accept */ | |
1653 | /* drop all competing applications, keep only this one */ | |
1b4843c5 TS |
1654 | spin_lock_irqsave(&bcs->aplock, flags); |
1655 | while (bcs->ap != NULL) { | |
1656 | oap = bcs->ap; | |
1657 | bcs->ap = oap->bcnext; | |
1658 | if (oap != ap) { | |
1659 | spin_unlock_irqrestore(&bcs->aplock, flags); | |
7bb5fdc2 | 1660 | send_disconnect_ind(bcs, oap, |
475be4d8 | 1661 | CapiCallGivenToOtherApplication); |
1b4843c5 TS |
1662 | spin_lock_irqsave(&bcs->aplock, flags); |
1663 | } | |
1664 | } | |
7bb5fdc2 TS |
1665 | ap->bcnext = NULL; |
1666 | bcs->ap = ap; | |
1b4843c5 TS |
1667 | spin_unlock_irqrestore(&bcs->aplock, flags); |
1668 | ||
e7752ee2 TS |
1669 | bcs->rx_bufsize = ap->rp.datablklen; |
1670 | dev_kfree_skb(bcs->rx_skb); | |
1671 | gigaset_new_rx_skb(bcs); | |
7bb5fdc2 TS |
1672 | bcs->chstate |= CHS_NOTIFY_LL; |
1673 | ||
1674 | /* check/encode B channel protocol */ | |
1675 | if (cmsg->BProtocol == CAPI_DEFAULT) { | |
1676 | bcs->proto2 = L2_HDLC; | |
1677 | dev_warn(cs->dev, | |
475be4d8 | 1678 | "B2 Protocol X.75 SLP unsupported, using Transparent\n"); |
7bb5fdc2 TS |
1679 | } else { |
1680 | switch (cmsg->B1protocol) { | |
1681 | case 0: | |
1682 | bcs->proto2 = L2_HDLC; | |
1683 | break; | |
1684 | case 1: | |
278a5829 | 1685 | bcs->proto2 = L2_VOICE; |
7bb5fdc2 TS |
1686 | break; |
1687 | default: | |
1688 | dev_warn(cs->dev, | |
475be4d8 | 1689 | "B1 Protocol %u unsupported, using Transparent\n", |
7bb5fdc2 | 1690 | cmsg->B1protocol); |
278a5829 | 1691 | bcs->proto2 = L2_VOICE; |
7bb5fdc2 TS |
1692 | } |
1693 | if (cmsg->B2protocol != 1) | |
1694 | dev_warn(cs->dev, | |
475be4d8 | 1695 | "B2 Protocol %u unsupported, using Transparent\n", |
7bb5fdc2 TS |
1696 | cmsg->B2protocol); |
1697 | if (cmsg->B3protocol != 0) | |
1698 | dev_warn(cs->dev, | |
475be4d8 | 1699 | "B3 Protocol %u unsupported, using Transparent\n", |
7bb5fdc2 TS |
1700 | cmsg->B3protocol); |
1701 | ignore_cstruct_param(cs, cmsg->B1configuration, | |
475be4d8 | 1702 | "CONNECT_RESP", "B1 Configuration"); |
7bb5fdc2 | 1703 | ignore_cstruct_param(cs, cmsg->B2configuration, |
475be4d8 | 1704 | "CONNECT_RESP", "B2 Configuration"); |
7bb5fdc2 | 1705 | ignore_cstruct_param(cs, cmsg->B3configuration, |
475be4d8 | 1706 | "CONNECT_RESP", "B3 Configuration"); |
7bb5fdc2 TS |
1707 | } |
1708 | ||
1709 | /* ToDo: check/encode remaining parameters */ | |
1710 | ignore_cstruct_param(cs, cmsg->ConnectedNumber, | |
475be4d8 | 1711 | "CONNECT_RESP", "Connected Number"); |
7bb5fdc2 | 1712 | ignore_cstruct_param(cs, cmsg->ConnectedSubaddress, |
475be4d8 | 1713 | "CONNECT_RESP", "Connected Subaddress"); |
7bb5fdc2 | 1714 | ignore_cstruct_param(cs, cmsg->LLC, |
475be4d8 | 1715 | "CONNECT_RESP", "LLC"); |
6c911916 TS |
1716 | if (cmsg->AdditionalInfo != CAPI_DEFAULT) { |
1717 | ignore_cstruct_param(cs, cmsg->BChannelinformation, | |
475be4d8 | 1718 | "CONNECT_RESP", "BChannel Information"); |
6c911916 | 1719 | ignore_cstruct_param(cs, cmsg->Keypadfacility, |
475be4d8 | 1720 | "CONNECT_RESP", "Keypad Facility"); |
6c911916 | 1721 | ignore_cstruct_param(cs, cmsg->Useruserdata, |
475be4d8 | 1722 | "CONNECT_RESP", "User-User Data"); |
6c911916 | 1723 | ignore_cstruct_param(cs, cmsg->Facilitydataarray, |
475be4d8 | 1724 | "CONNECT_RESP", "Facility Data Array"); |
6c911916 | 1725 | } |
7bb5fdc2 TS |
1726 | |
1727 | /* Accept call */ | |
475be4d8 | 1728 | if (!gigaset_add_event(cs, &cs->bcs[channel - 1].at_state, |
7bb5fdc2 TS |
1729 | EV_ACCEPT, NULL, 0, NULL)) |
1730 | return; | |
7bb5fdc2 TS |
1731 | gigaset_schedule_event(cs); |
1732 | return; | |
1733 | ||
1734 | case 1: /* Ignore */ | |
1735 | /* send DISCONNECT_IND to this application */ | |
1736 | send_disconnect_ind(bcs, ap, 0); | |
1737 | ||
1738 | /* remove it from the list of listening apps */ | |
1b4843c5 | 1739 | spin_lock_irqsave(&bcs->aplock, flags); |
7bb5fdc2 TS |
1740 | if (bcs->ap == ap) { |
1741 | bcs->ap = ap->bcnext; | |
1b4843c5 | 1742 | if (bcs->ap == NULL) { |
7bb5fdc2 | 1743 | /* last one: stop ev-layer hupD notifications */ |
1b4843c5 | 1744 | bcs->apconnstate = APCONN_NONE; |
7bb5fdc2 | 1745 | bcs->chstate &= ~CHS_NOTIFY_LL; |
1b4843c5 TS |
1746 | } |
1747 | spin_unlock_irqrestore(&bcs->aplock, flags); | |
7bb5fdc2 TS |
1748 | return; |
1749 | } | |
1750 | for (oap = bcs->ap; oap != NULL; oap = oap->bcnext) { | |
1751 | if (oap->bcnext == ap) { | |
1752 | oap->bcnext = oap->bcnext->bcnext; | |
1b4843c5 | 1753 | spin_unlock_irqrestore(&bcs->aplock, flags); |
7bb5fdc2 TS |
1754 | return; |
1755 | } | |
1756 | } | |
1b4843c5 | 1757 | spin_unlock_irqrestore(&bcs->aplock, flags); |
7bb5fdc2 TS |
1758 | dev_err(cs->dev, "%s: application %u not found\n", |
1759 | __func__, ap->id); | |
1760 | return; | |
1761 | ||
1762 | default: /* Reject */ | |
1763 | /* drop all competing applications, keep only this one */ | |
1b4843c5 TS |
1764 | spin_lock_irqsave(&bcs->aplock, flags); |
1765 | while (bcs->ap != NULL) { | |
1766 | oap = bcs->ap; | |
1767 | bcs->ap = oap->bcnext; | |
1768 | if (oap != ap) { | |
1769 | spin_unlock_irqrestore(&bcs->aplock, flags); | |
7bb5fdc2 | 1770 | send_disconnect_ind(bcs, oap, |
475be4d8 | 1771 | CapiCallGivenToOtherApplication); |
1b4843c5 TS |
1772 | spin_lock_irqsave(&bcs->aplock, flags); |
1773 | } | |
1774 | } | |
7bb5fdc2 TS |
1775 | ap->bcnext = NULL; |
1776 | bcs->ap = ap; | |
1b4843c5 | 1777 | spin_unlock_irqrestore(&bcs->aplock, flags); |
7bb5fdc2 TS |
1778 | |
1779 | /* reject call - will trigger DISCONNECT_IND for this app */ | |
1780 | dev_info(cs->dev, "%s: Reject=%x\n", | |
1781 | "CONNECT_RESP", cmsg->Reject); | |
475be4d8 | 1782 | if (!gigaset_add_event(cs, &cs->bcs[channel - 1].at_state, |
7bb5fdc2 TS |
1783 | EV_HUP, NULL, 0, NULL)) |
1784 | return; | |
7bb5fdc2 TS |
1785 | gigaset_schedule_event(cs); |
1786 | return; | |
1787 | } | |
1788 | } | |
1789 | ||
1790 | /* | |
1791 | * process CONNECT_B3_REQ message | |
1792 | * build NCCI and emit CONNECT_B3_CONF reply | |
1793 | */ | |
1794 | static void do_connect_b3_req(struct gigaset_capi_ctr *iif, | |
1795 | struct gigaset_capi_appl *ap, | |
1796 | struct sk_buff *skb) | |
1797 | { | |
1798 | struct cardstate *cs = iif->ctr.driverdata; | |
6c911916 | 1799 | _cmsg *cmsg = &iif->acmsg; |
1b4843c5 | 1800 | struct bc_state *bcs; |
7bb5fdc2 TS |
1801 | int channel; |
1802 | ||
1803 | /* decode message */ | |
2bf3a09e TS |
1804 | if (capi_message2cmsg(cmsg, skb->data)) { |
1805 | dev_err(cs->dev, "%s: message parser failure\n", __func__); | |
1806 | dev_kfree_skb_any(skb); | |
1807 | return; | |
1808 | } | |
6c911916 | 1809 | dump_cmsg(DEBUG_CMD, __func__, cmsg); |
7bb5fdc2 TS |
1810 | |
1811 | /* extract and check channel number from PLCI */ | |
6c911916 | 1812 | channel = (cmsg->adr.adrPLCI >> 8) & 0xff; |
7bb5fdc2 TS |
1813 | if (!channel || channel > cs->channels) { |
1814 | dev_notice(cs->dev, "%s: invalid %s 0x%02x\n", | |
6c911916 | 1815 | "CONNECT_B3_REQ", "PLCI", cmsg->adr.adrPLCI); |
7bb5fdc2 TS |
1816 | send_conf(iif, ap, skb, CapiIllContrPlciNcci); |
1817 | return; | |
1818 | } | |
475be4d8 | 1819 | bcs = &cs->bcs[channel - 1]; |
7bb5fdc2 TS |
1820 | |
1821 | /* mark logical connection active */ | |
1b4843c5 | 1822 | bcs->apconnstate = APCONN_ACTIVE; |
7bb5fdc2 TS |
1823 | |
1824 | /* build NCCI: always 1 (one B3 connection only) */ | |
6c911916 | 1825 | cmsg->adr.adrNCCI |= 1 << 16; |
7bb5fdc2 TS |
1826 | |
1827 | /* NCPI parameter: not applicable for B3 Transparent */ | |
6c911916 | 1828 | ignore_cstruct_param(cs, cmsg->NCPI, "CONNECT_B3_REQ", "NCPI"); |
f86936ff TS |
1829 | send_conf(iif, ap, skb, |
1830 | (cmsg->NCPI && cmsg->NCPI[0]) ? | |
475be4d8 | 1831 | CapiNcpiNotSupportedByProtocol : CapiSuccess); |
7bb5fdc2 TS |
1832 | } |
1833 | ||
1834 | /* | |
1835 | * process CONNECT_B3_RESP message | |
1836 | * Depending on the Reject parameter, either emit CONNECT_B3_ACTIVE_IND | |
1837 | * or queue EV_HUP and emit DISCONNECT_B3_IND. | |
1838 | * The emitted message is always shorter than the received one, | |
1839 | * allowing to reuse the skb. | |
1840 | */ | |
1841 | static void do_connect_b3_resp(struct gigaset_capi_ctr *iif, | |
1842 | struct gigaset_capi_appl *ap, | |
1843 | struct sk_buff *skb) | |
1844 | { | |
1845 | struct cardstate *cs = iif->ctr.driverdata; | |
6c911916 TS |
1846 | _cmsg *cmsg = &iif->acmsg; |
1847 | struct bc_state *bcs; | |
7bb5fdc2 TS |
1848 | int channel; |
1849 | unsigned int msgsize; | |
1850 | u8 command; | |
1851 | ||
1852 | /* decode message */ | |
2bf3a09e TS |
1853 | if (capi_message2cmsg(cmsg, skb->data)) { |
1854 | dev_err(cs->dev, "%s: message parser failure\n", __func__); | |
1855 | dev_kfree_skb_any(skb); | |
1856 | return; | |
1857 | } | |
6c911916 | 1858 | dump_cmsg(DEBUG_CMD, __func__, cmsg); |
7bb5fdc2 TS |
1859 | |
1860 | /* extract and check channel number and NCCI */ | |
6c911916 | 1861 | channel = (cmsg->adr.adrNCCI >> 8) & 0xff; |
7bb5fdc2 | 1862 | if (!channel || channel > cs->channels || |
6c911916 | 1863 | ((cmsg->adr.adrNCCI >> 16) & 0xffff) != 1) { |
7bb5fdc2 | 1864 | dev_notice(cs->dev, "%s: invalid %s 0x%02x\n", |
6c911916 | 1865 | "CONNECT_B3_RESP", "NCCI", cmsg->adr.adrNCCI); |
4dd8230a | 1866 | dev_kfree_skb_any(skb); |
7bb5fdc2 TS |
1867 | return; |
1868 | } | |
475be4d8 | 1869 | bcs = &cs->bcs[channel - 1]; |
7bb5fdc2 | 1870 | |
6c911916 | 1871 | if (cmsg->Reject) { |
7bb5fdc2 | 1872 | /* Reject: clear B3 connect received flag */ |
1b4843c5 | 1873 | bcs->apconnstate = APCONN_SETUP; |
7bb5fdc2 TS |
1874 | |
1875 | /* trigger hangup, causing eventual DISCONNECT_IND */ | |
1876 | if (!gigaset_add_event(cs, &bcs->at_state, | |
1877 | EV_HUP, NULL, 0, NULL)) { | |
4dd8230a | 1878 | dev_kfree_skb_any(skb); |
7bb5fdc2 TS |
1879 | return; |
1880 | } | |
7bb5fdc2 TS |
1881 | gigaset_schedule_event(cs); |
1882 | ||
1883 | /* emit DISCONNECT_B3_IND */ | |
1884 | command = CAPI_DISCONNECT_B3; | |
1885 | msgsize = CAPI_DISCONNECT_B3_IND_BASELEN; | |
1886 | } else { | |
1887 | /* | |
1888 | * Accept: emit CONNECT_B3_ACTIVE_IND immediately, as | |
1889 | * we only send CONNECT_B3_IND if the B channel is up | |
1890 | */ | |
1891 | command = CAPI_CONNECT_B3_ACTIVE; | |
1892 | msgsize = CAPI_CONNECT_B3_ACTIVE_IND_BASELEN; | |
1893 | } | |
6c911916 TS |
1894 | capi_cmsg_header(cmsg, ap->id, command, CAPI_IND, |
1895 | ap->nextMessageNumber++, cmsg->adr.adrNCCI); | |
7bb5fdc2 | 1896 | __skb_trim(skb, msgsize); |
2bf3a09e TS |
1897 | if (capi_cmsg2message(cmsg, skb->data)) { |
1898 | dev_err(cs->dev, "%s: message parser failure\n", __func__); | |
1899 | dev_kfree_skb_any(skb); | |
1900 | return; | |
1901 | } | |
6c911916 | 1902 | dump_cmsg(DEBUG_CMD, __func__, cmsg); |
7bb5fdc2 TS |
1903 | capi_ctr_handle_message(&iif->ctr, ap->id, skb); |
1904 | } | |
1905 | ||
1906 | /* | |
1907 | * process DISCONNECT_REQ message | |
1908 | * schedule EV_HUP and emit DISCONNECT_B3_IND if necessary, | |
1909 | * emit DISCONNECT_CONF reply | |
1910 | */ | |
1911 | static void do_disconnect_req(struct gigaset_capi_ctr *iif, | |
1912 | struct gigaset_capi_appl *ap, | |
1913 | struct sk_buff *skb) | |
1914 | { | |
1915 | struct cardstate *cs = iif->ctr.driverdata; | |
6c911916 | 1916 | _cmsg *cmsg = &iif->acmsg; |
7bb5fdc2 TS |
1917 | struct bc_state *bcs; |
1918 | _cmsg *b3cmsg; | |
1919 | struct sk_buff *b3skb; | |
1920 | int channel; | |
1921 | ||
1922 | /* decode message */ | |
2bf3a09e TS |
1923 | if (capi_message2cmsg(cmsg, skb->data)) { |
1924 | dev_err(cs->dev, "%s: message parser failure\n", __func__); | |
1925 | dev_kfree_skb_any(skb); | |
1926 | return; | |
1927 | } | |
6c911916 | 1928 | dump_cmsg(DEBUG_CMD, __func__, cmsg); |
7bb5fdc2 TS |
1929 | |
1930 | /* extract and check channel number from PLCI */ | |
6c911916 | 1931 | channel = (cmsg->adr.adrPLCI >> 8) & 0xff; |
7bb5fdc2 TS |
1932 | if (!channel || channel > cs->channels) { |
1933 | dev_notice(cs->dev, "%s: invalid %s 0x%02x\n", | |
6c911916 | 1934 | "DISCONNECT_REQ", "PLCI", cmsg->adr.adrPLCI); |
7bb5fdc2 TS |
1935 | send_conf(iif, ap, skb, CapiIllContrPlciNcci); |
1936 | return; | |
1937 | } | |
1938 | bcs = cs->bcs + channel - 1; | |
1939 | ||
1940 | /* ToDo: process parameter: Additional info */ | |
6c911916 TS |
1941 | if (cmsg->AdditionalInfo != CAPI_DEFAULT) { |
1942 | ignore_cstruct_param(cs, cmsg->BChannelinformation, | |
1943 | "DISCONNECT_REQ", "B Channel Information"); | |
1944 | ignore_cstruct_param(cs, cmsg->Keypadfacility, | |
1945 | "DISCONNECT_REQ", "Keypad Facility"); | |
1946 | ignore_cstruct_param(cs, cmsg->Useruserdata, | |
1947 | "DISCONNECT_REQ", "User-User Data"); | |
1948 | ignore_cstruct_param(cs, cmsg->Facilitydataarray, | |
1949 | "DISCONNECT_REQ", "Facility Data Array"); | |
1950 | } | |
7bb5fdc2 TS |
1951 | |
1952 | /* skip if DISCONNECT_IND already sent */ | |
1b4843c5 | 1953 | if (!bcs->apconnstate) |
7bb5fdc2 TS |
1954 | return; |
1955 | ||
1956 | /* check for active logical connection */ | |
1b4843c5 | 1957 | if (bcs->apconnstate >= APCONN_ACTIVE) { |
62a1cfe0 TS |
1958 | /* clear it */ |
1959 | bcs->apconnstate = APCONN_SETUP; | |
1960 | ||
7bb5fdc2 TS |
1961 | /* |
1962 | * emit DISCONNECT_B3_IND with cause 0x3301 | |
1963 | * use separate cmsg structure, as the content of iif->acmsg | |
1964 | * is still needed for creating the _CONF message | |
1965 | */ | |
1966 | b3cmsg = kmalloc(sizeof(*b3cmsg), GFP_KERNEL); | |
1967 | if (!b3cmsg) { | |
1968 | dev_err(cs->dev, "%s: out of memory\n", __func__); | |
1969 | send_conf(iif, ap, skb, CAPI_MSGOSRESOURCEERR); | |
1970 | return; | |
1971 | } | |
1972 | capi_cmsg_header(b3cmsg, ap->id, CAPI_DISCONNECT_B3, CAPI_IND, | |
1973 | ap->nextMessageNumber++, | |
6c911916 | 1974 | cmsg->adr.adrPLCI | (1 << 16)); |
7bb5fdc2 TS |
1975 | b3cmsg->Reason_B3 = CapiProtocolErrorLayer1; |
1976 | b3skb = alloc_skb(CAPI_DISCONNECT_B3_IND_BASELEN, GFP_KERNEL); | |
1977 | if (b3skb == NULL) { | |
1978 | dev_err(cs->dev, "%s: out of memory\n", __func__); | |
1979 | send_conf(iif, ap, skb, CAPI_MSGOSRESOURCEERR); | |
2393c944 | 1980 | kfree(b3cmsg); |
7bb5fdc2 TS |
1981 | return; |
1982 | } | |
2bf3a09e TS |
1983 | if (capi_cmsg2message(b3cmsg, |
1984 | __skb_put(b3skb, CAPI_DISCONNECT_B3_IND_BASELEN))) { | |
1985 | dev_err(cs->dev, "%s: message parser failure\n", | |
1986 | __func__); | |
1987 | kfree(b3cmsg); | |
1988 | dev_kfree_skb_any(b3skb); | |
1989 | return; | |
1990 | } | |
62a1cfe0 | 1991 | dump_cmsg(DEBUG_CMD, __func__, b3cmsg); |
7bb5fdc2 TS |
1992 | kfree(b3cmsg); |
1993 | capi_ctr_handle_message(&iif->ctr, ap->id, b3skb); | |
1994 | } | |
1995 | ||
1996 | /* trigger hangup, causing eventual DISCONNECT_IND */ | |
1997 | if (!gigaset_add_event(cs, &bcs->at_state, EV_HUP, NULL, 0, NULL)) { | |
7bb5fdc2 TS |
1998 | send_conf(iif, ap, skb, CAPI_MSGOSRESOURCEERR); |
1999 | return; | |
2000 | } | |
7bb5fdc2 TS |
2001 | gigaset_schedule_event(cs); |
2002 | ||
2003 | /* emit reply */ | |
2004 | send_conf(iif, ap, skb, CapiSuccess); | |
2005 | } | |
2006 | ||
2007 | /* | |
2008 | * process DISCONNECT_B3_REQ message | |
2009 | * schedule EV_HUP and emit DISCONNECT_B3_CONF reply | |
2010 | */ | |
2011 | static void do_disconnect_b3_req(struct gigaset_capi_ctr *iif, | |
2012 | struct gigaset_capi_appl *ap, | |
2013 | struct sk_buff *skb) | |
2014 | { | |
2015 | struct cardstate *cs = iif->ctr.driverdata; | |
6c911916 | 2016 | _cmsg *cmsg = &iif->acmsg; |
1b4843c5 | 2017 | struct bc_state *bcs; |
7bb5fdc2 TS |
2018 | int channel; |
2019 | ||
2020 | /* decode message */ | |
2bf3a09e TS |
2021 | if (capi_message2cmsg(cmsg, skb->data)) { |
2022 | dev_err(cs->dev, "%s: message parser failure\n", __func__); | |
2023 | dev_kfree_skb_any(skb); | |
2024 | return; | |
2025 | } | |
6c911916 | 2026 | dump_cmsg(DEBUG_CMD, __func__, cmsg); |
7bb5fdc2 TS |
2027 | |
2028 | /* extract and check channel number and NCCI */ | |
6c911916 | 2029 | channel = (cmsg->adr.adrNCCI >> 8) & 0xff; |
7bb5fdc2 | 2030 | if (!channel || channel > cs->channels || |
6c911916 | 2031 | ((cmsg->adr.adrNCCI >> 16) & 0xffff) != 1) { |
7bb5fdc2 | 2032 | dev_notice(cs->dev, "%s: invalid %s 0x%02x\n", |
6c911916 | 2033 | "DISCONNECT_B3_REQ", "NCCI", cmsg->adr.adrNCCI); |
7bb5fdc2 TS |
2034 | send_conf(iif, ap, skb, CapiIllContrPlciNcci); |
2035 | return; | |
2036 | } | |
475be4d8 | 2037 | bcs = &cs->bcs[channel - 1]; |
7bb5fdc2 TS |
2038 | |
2039 | /* reject if logical connection not active */ | |
1b4843c5 | 2040 | if (bcs->apconnstate < APCONN_ACTIVE) { |
7bb5fdc2 TS |
2041 | send_conf(iif, ap, skb, |
2042 | CapiMessageNotSupportedInCurrentState); | |
2043 | return; | |
2044 | } | |
2045 | ||
2046 | /* trigger hangup, causing eventual DISCONNECT_B3_IND */ | |
1b4843c5 | 2047 | if (!gigaset_add_event(cs, &bcs->at_state, EV_HUP, NULL, 0, NULL)) { |
7bb5fdc2 TS |
2048 | send_conf(iif, ap, skb, CAPI_MSGOSRESOURCEERR); |
2049 | return; | |
2050 | } | |
7bb5fdc2 TS |
2051 | gigaset_schedule_event(cs); |
2052 | ||
2053 | /* NCPI parameter: not applicable for B3 Transparent */ | |
6c911916 | 2054 | ignore_cstruct_param(cs, cmsg->NCPI, |
475be4d8 | 2055 | "DISCONNECT_B3_REQ", "NCPI"); |
f86936ff TS |
2056 | send_conf(iif, ap, skb, |
2057 | (cmsg->NCPI && cmsg->NCPI[0]) ? | |
475be4d8 | 2058 | CapiNcpiNotSupportedByProtocol : CapiSuccess); |
7bb5fdc2 TS |
2059 | } |
2060 | ||
2061 | /* | |
2062 | * process DATA_B3_REQ message | |
2063 | */ | |
2064 | static void do_data_b3_req(struct gigaset_capi_ctr *iif, | |
2065 | struct gigaset_capi_appl *ap, | |
2066 | struct sk_buff *skb) | |
2067 | { | |
2068 | struct cardstate *cs = iif->ctr.driverdata; | |
1b4843c5 | 2069 | struct bc_state *bcs; |
7bb5fdc2 TS |
2070 | int channel = CAPIMSG_PLCI_PART(skb->data); |
2071 | u16 ncci = CAPIMSG_NCCI_PART(skb->data); | |
2072 | u16 msglen = CAPIMSG_LEN(skb->data); | |
2073 | u16 datalen = CAPIMSG_DATALEN(skb->data); | |
2074 | u16 flags = CAPIMSG_FLAGS(skb->data); | |
23b36778 TS |
2075 | u16 msgid = CAPIMSG_MSGID(skb->data); |
2076 | u16 handle = CAPIMSG_HANDLE_REQ(skb->data); | |
7bb5fdc2 TS |
2077 | |
2078 | /* frequent message, avoid _cmsg overhead */ | |
6a75342a | 2079 | dump_rawmsg(DEBUG_MCMD, __func__, skb->data); |
7bb5fdc2 TS |
2080 | |
2081 | /* check parameters */ | |
2082 | if (channel == 0 || channel > cs->channels || ncci != 1) { | |
2083 | dev_notice(cs->dev, "%s: invalid %s 0x%02x\n", | |
2084 | "DATA_B3_REQ", "NCCI", CAPIMSG_NCCI(skb->data)); | |
2085 | send_conf(iif, ap, skb, CapiIllContrPlciNcci); | |
2086 | return; | |
2087 | } | |
475be4d8 | 2088 | bcs = &cs->bcs[channel - 1]; |
7bb5fdc2 TS |
2089 | if (msglen != CAPI_DATA_B3_REQ_LEN && msglen != CAPI_DATA_B3_REQ_LEN64) |
2090 | dev_notice(cs->dev, "%s: unexpected length %d\n", | |
2091 | "DATA_B3_REQ", msglen); | |
2092 | if (msglen + datalen != skb->len) | |
2093 | dev_notice(cs->dev, "%s: length mismatch (%d+%d!=%d)\n", | |
2094 | "DATA_B3_REQ", msglen, datalen, skb->len); | |
2095 | if (msglen + datalen > skb->len) { | |
2096 | /* message too short for announced data length */ | |
2097 | send_conf(iif, ap, skb, CapiIllMessageParmCoding); /* ? */ | |
2098 | return; | |
2099 | } | |
2100 | if (flags & CAPI_FLAGS_RESERVED) { | |
2101 | dev_notice(cs->dev, "%s: reserved flags set (%x)\n", | |
2102 | "DATA_B3_REQ", flags); | |
2103 | send_conf(iif, ap, skb, CapiIllMessageParmCoding); | |
2104 | return; | |
2105 | } | |
2106 | ||
2107 | /* reject if logical connection not active */ | |
1b4843c5 | 2108 | if (bcs->apconnstate < APCONN_ACTIVE) { |
7bb5fdc2 TS |
2109 | send_conf(iif, ap, skb, CapiMessageNotSupportedInCurrentState); |
2110 | return; | |
2111 | } | |
2112 | ||
4dd8230a TS |
2113 | /* pull CAPI message into link layer header */ |
2114 | skb_reset_mac_header(skb); | |
2115 | skb->mac_len = msglen; | |
7bb5fdc2 | 2116 | skb_pull(skb, msglen); |
4dd8230a TS |
2117 | |
2118 | /* pass to device-specific module */ | |
1b4843c5 | 2119 | if (cs->ops->send_skb(bcs, skb) < 0) { |
7bb5fdc2 TS |
2120 | send_conf(iif, ap, skb, CAPI_MSGOSRESOURCEERR); |
2121 | return; | |
2122 | } | |
2123 | ||
7bb5fdc2 | 2124 | /* |
23b36778 TS |
2125 | * DATA_B3_CONF will be sent by gigaset_skb_sent() only if "delivery |
2126 | * confirmation" bit is set; otherwise we have to send it now | |
7bb5fdc2 | 2127 | */ |
23b36778 TS |
2128 | if (!(flags & CAPI_FLAGS_DELIVERY_CONFIRMATION)) |
2129 | send_data_b3_conf(cs, &iif->ctr, ap->id, msgid, channel, handle, | |
2130 | flags ? CapiFlagsNotSupportedByProtocol | |
475be4d8 | 2131 | : CAPI_NOERROR); |
7bb5fdc2 TS |
2132 | } |
2133 | ||
2134 | /* | |
2135 | * process RESET_B3_REQ message | |
2136 | * just always reply "not supported by current protocol" | |
2137 | */ | |
2138 | static void do_reset_b3_req(struct gigaset_capi_ctr *iif, | |
2139 | struct gigaset_capi_appl *ap, | |
2140 | struct sk_buff *skb) | |
2141 | { | |
2bf3a09e TS |
2142 | struct cardstate *cs = iif->ctr.driverdata; |
2143 | ||
7bb5fdc2 | 2144 | /* decode message */ |
2bf3a09e TS |
2145 | if (capi_message2cmsg(&iif->acmsg, skb->data)) { |
2146 | dev_err(cs->dev, "%s: message parser failure\n", __func__); | |
2147 | dev_kfree_skb_any(skb); | |
2148 | return; | |
2149 | } | |
7bb5fdc2 TS |
2150 | dump_cmsg(DEBUG_CMD, __func__, &iif->acmsg); |
2151 | send_conf(iif, ap, skb, | |
2152 | CapiResetProcedureNotSupportedByCurrentProtocol); | |
2153 | } | |
2154 | ||
7bb5fdc2 TS |
2155 | /* |
2156 | * unsupported CAPI message handler | |
2157 | */ | |
2158 | static void do_unsupported(struct gigaset_capi_ctr *iif, | |
2159 | struct gigaset_capi_appl *ap, | |
2160 | struct sk_buff *skb) | |
2161 | { | |
2bf3a09e TS |
2162 | struct cardstate *cs = iif->ctr.driverdata; |
2163 | ||
7bb5fdc2 | 2164 | /* decode message */ |
2bf3a09e TS |
2165 | if (capi_message2cmsg(&iif->acmsg, skb->data)) { |
2166 | dev_err(cs->dev, "%s: message parser failure\n", __func__); | |
2167 | dev_kfree_skb_any(skb); | |
2168 | return; | |
2169 | } | |
8e618aad | 2170 | dump_cmsg(DEBUG_CMD, __func__, &iif->acmsg); |
7bb5fdc2 TS |
2171 | send_conf(iif, ap, skb, CapiMessageNotSupportedInCurrentState); |
2172 | } | |
2173 | ||
2174 | /* | |
2175 | * CAPI message handler: no-op | |
2176 | */ | |
2177 | static void do_nothing(struct gigaset_capi_ctr *iif, | |
2178 | struct gigaset_capi_appl *ap, | |
2179 | struct sk_buff *skb) | |
2180 | { | |
2bf3a09e TS |
2181 | struct cardstate *cs = iif->ctr.driverdata; |
2182 | ||
8e618aad | 2183 | /* decode message */ |
2bf3a09e TS |
2184 | if (capi_message2cmsg(&iif->acmsg, skb->data)) { |
2185 | dev_err(cs->dev, "%s: message parser failure\n", __func__); | |
2186 | dev_kfree_skb_any(skb); | |
2187 | return; | |
2188 | } | |
8e618aad | 2189 | dump_cmsg(DEBUG_CMD, __func__, &iif->acmsg); |
4dd8230a | 2190 | dev_kfree_skb_any(skb); |
7bb5fdc2 TS |
2191 | } |
2192 | ||
2193 | static void do_data_b3_resp(struct gigaset_capi_ctr *iif, | |
2194 | struct gigaset_capi_appl *ap, | |
2195 | struct sk_buff *skb) | |
2196 | { | |
6a75342a | 2197 | dump_rawmsg(DEBUG_MCMD, __func__, skb->data); |
4dd8230a | 2198 | dev_kfree_skb_any(skb); |
7bb5fdc2 TS |
2199 | } |
2200 | ||
2201 | /* table of outgoing CAPI message handlers with lookup function */ | |
2202 | typedef void (*capi_send_handler_t)(struct gigaset_capi_ctr *, | |
2203 | struct gigaset_capi_appl *, | |
2204 | struct sk_buff *); | |
2205 | ||
2206 | static struct { | |
2207 | u16 cmd; | |
2208 | capi_send_handler_t handler; | |
2209 | } capi_send_handler_table[] = { | |
2210 | /* most frequent messages first for faster lookup */ | |
2211 | { CAPI_DATA_B3_REQ, do_data_b3_req }, | |
2212 | { CAPI_DATA_B3_RESP, do_data_b3_resp }, | |
2213 | ||
2214 | { CAPI_ALERT_REQ, do_alert_req }, | |
2215 | { CAPI_CONNECT_ACTIVE_RESP, do_nothing }, | |
2216 | { CAPI_CONNECT_B3_ACTIVE_RESP, do_nothing }, | |
2217 | { CAPI_CONNECT_B3_REQ, do_connect_b3_req }, | |
2218 | { CAPI_CONNECT_B3_RESP, do_connect_b3_resp }, | |
2219 | { CAPI_CONNECT_B3_T90_ACTIVE_RESP, do_nothing }, | |
2220 | { CAPI_CONNECT_REQ, do_connect_req }, | |
2221 | { CAPI_CONNECT_RESP, do_connect_resp }, | |
2222 | { CAPI_DISCONNECT_B3_REQ, do_disconnect_b3_req }, | |
2223 | { CAPI_DISCONNECT_B3_RESP, do_nothing }, | |
2224 | { CAPI_DISCONNECT_REQ, do_disconnect_req }, | |
2225 | { CAPI_DISCONNECT_RESP, do_nothing }, | |
2226 | { CAPI_FACILITY_REQ, do_facility_req }, | |
2227 | { CAPI_FACILITY_RESP, do_nothing }, | |
2228 | { CAPI_LISTEN_REQ, do_listen_req }, | |
2229 | { CAPI_SELECT_B_PROTOCOL_REQ, do_unsupported }, | |
2230 | { CAPI_RESET_B3_REQ, do_reset_b3_req }, | |
2231 | { CAPI_RESET_B3_RESP, do_nothing }, | |
2232 | ||
2233 | /* | |
2234 | * ToDo: support overlap sending (requires ev-layer state | |
2235 | * machine extension to generate additional ATD commands) | |
2236 | */ | |
2237 | { CAPI_INFO_REQ, do_unsupported }, | |
2238 | { CAPI_INFO_RESP, do_nothing }, | |
2239 | ||
2240 | /* | |
2241 | * ToDo: what's the proper response for these? | |
2242 | */ | |
2243 | { CAPI_MANUFACTURER_REQ, do_nothing }, | |
2244 | { CAPI_MANUFACTURER_RESP, do_nothing }, | |
2245 | }; | |
2246 | ||
2247 | /* look up handler */ | |
2248 | static inline capi_send_handler_t lookup_capi_send_handler(const u16 cmd) | |
2249 | { | |
2250 | size_t i; | |
2251 | ||
2252 | for (i = 0; i < ARRAY_SIZE(capi_send_handler_table); i++) | |
2253 | if (capi_send_handler_table[i].cmd == cmd) | |
2254 | return capi_send_handler_table[i].handler; | |
2255 | return NULL; | |
2256 | } | |
2257 | ||
2258 | ||
2259 | /** | |
2260 | * gigaset_send_message() - accept a CAPI message from an application | |
2261 | * @ctr: controller descriptor structure. | |
2262 | * @skb: CAPI message. | |
2263 | * | |
2264 | * Return value: CAPI error code | |
2265 | * Note: capidrv (and probably others, too) only uses the return value to | |
2266 | * decide whether it has to free the skb (only if result != CAPI_NOERROR (0)) | |
2267 | */ | |
2268 | static u16 gigaset_send_message(struct capi_ctr *ctr, struct sk_buff *skb) | |
2269 | { | |
2270 | struct gigaset_capi_ctr *iif | |
2271 | = container_of(ctr, struct gigaset_capi_ctr, ctr); | |
2272 | struct cardstate *cs = ctr->driverdata; | |
2273 | struct gigaset_capi_appl *ap; | |
2274 | capi_send_handler_t handler; | |
2275 | ||
2276 | /* can only handle linear sk_buffs */ | |
2277 | if (skb_linearize(skb) < 0) { | |
2278 | dev_warn(cs->dev, "%s: skb_linearize failed\n", __func__); | |
2279 | return CAPI_MSGOSRESOURCEERR; | |
2280 | } | |
2281 | ||
2282 | /* retrieve application data structure */ | |
2283 | ap = get_appl(iif, CAPIMSG_APPID(skb->data)); | |
2284 | if (!ap) { | |
2285 | dev_notice(cs->dev, "%s: application %u not registered\n", | |
2286 | __func__, CAPIMSG_APPID(skb->data)); | |
2287 | return CAPI_ILLAPPNR; | |
2288 | } | |
2289 | ||
2290 | /* look up command */ | |
2291 | handler = lookup_capi_send_handler(CAPIMSG_CMD(skb->data)); | |
2292 | if (!handler) { | |
2293 | /* unknown/unsupported message type */ | |
2294 | if (printk_ratelimit()) | |
2295 | dev_notice(cs->dev, "%s: unsupported message %u\n", | |
2296 | __func__, CAPIMSG_CMD(skb->data)); | |
2297 | return CAPI_ILLCMDORSUBCMDORMSGTOSMALL; | |
2298 | } | |
2299 | ||
2300 | /* serialize */ | |
2301 | if (atomic_add_return(1, &iif->sendqlen) > 1) { | |
2302 | /* queue behind other messages */ | |
2303 | skb_queue_tail(&iif->sendqueue, skb); | |
2304 | return CAPI_NOERROR; | |
2305 | } | |
2306 | ||
2307 | /* process message */ | |
2308 | handler(iif, ap, skb); | |
2309 | ||
2310 | /* process other messages arrived in the meantime */ | |
2311 | while (atomic_sub_return(1, &iif->sendqlen) > 0) { | |
2312 | skb = skb_dequeue(&iif->sendqueue); | |
2313 | if (!skb) { | |
2314 | /* should never happen */ | |
2315 | dev_err(cs->dev, "%s: send queue empty\n", __func__); | |
2316 | continue; | |
2317 | } | |
2318 | ap = get_appl(iif, CAPIMSG_APPID(skb->data)); | |
2319 | if (!ap) { | |
2320 | /* could that happen? */ | |
2321 | dev_warn(cs->dev, "%s: application %u vanished\n", | |
2322 | __func__, CAPIMSG_APPID(skb->data)); | |
2323 | continue; | |
2324 | } | |
2325 | handler = lookup_capi_send_handler(CAPIMSG_CMD(skb->data)); | |
2326 | if (!handler) { | |
2327 | /* should never happen */ | |
2328 | dev_err(cs->dev, "%s: handler %x vanished\n", | |
2329 | __func__, CAPIMSG_CMD(skb->data)); | |
2330 | continue; | |
2331 | } | |
2332 | handler(iif, ap, skb); | |
2333 | } | |
2334 | ||
2335 | return CAPI_NOERROR; | |
2336 | } | |
2337 | ||
2338 | /** | |
2339 | * gigaset_procinfo() - build single line description for controller | |
2340 | * @ctr: controller descriptor structure. | |
2341 | * | |
2342 | * Return value: pointer to generated string (null terminated) | |
2343 | */ | |
2344 | static char *gigaset_procinfo(struct capi_ctr *ctr) | |
2345 | { | |
2346 | return ctr->name; /* ToDo: more? */ | |
2347 | } | |
2348 | ||
9a58a80a | 2349 | static int gigaset_proc_show(struct seq_file *m, void *v) |
7bb5fdc2 | 2350 | { |
9a58a80a | 2351 | struct capi_ctr *ctr = m->private; |
7bb5fdc2 TS |
2352 | struct cardstate *cs = ctr->driverdata; |
2353 | char *s; | |
2354 | int i; | |
9a58a80a AD |
2355 | |
2356 | seq_printf(m, "%-16s %s\n", "name", ctr->name); | |
2357 | seq_printf(m, "%-16s %s %s\n", "dev", | |
475be4d8 | 2358 | dev_driver_string(cs->dev), dev_name(cs->dev)); |
9a58a80a | 2359 | seq_printf(m, "%-16s %d\n", "id", cs->myid); |
7bb5fdc2 | 2360 | if (cs->gotfwver) |
9a58a80a | 2361 | seq_printf(m, "%-16s %d.%d.%d.%d\n", "firmware", |
475be4d8 | 2362 | cs->fwver[0], cs->fwver[1], cs->fwver[2], cs->fwver[3]); |
9a58a80a AD |
2363 | seq_printf(m, "%-16s %d\n", "channels", cs->channels); |
2364 | seq_printf(m, "%-16s %s\n", "onechannel", cs->onechannel ? "yes" : "no"); | |
7bb5fdc2 TS |
2365 | |
2366 | switch (cs->mode) { | |
2367 | case M_UNKNOWN: | |
2368 | s = "unknown"; | |
2369 | break; | |
2370 | case M_CONFIG: | |
2371 | s = "config"; | |
2372 | break; | |
2373 | case M_UNIMODEM: | |
2374 | s = "Unimodem"; | |
2375 | break; | |
2376 | case M_CID: | |
2377 | s = "CID"; | |
2378 | break; | |
2379 | default: | |
2380 | s = "??"; | |
2381 | } | |
9a58a80a | 2382 | seq_printf(m, "%-16s %s\n", "mode", s); |
7bb5fdc2 TS |
2383 | |
2384 | switch (cs->mstate) { | |
2385 | case MS_UNINITIALIZED: | |
2386 | s = "uninitialized"; | |
2387 | break; | |
2388 | case MS_INIT: | |
2389 | s = "init"; | |
2390 | break; | |
2391 | case MS_LOCKED: | |
2392 | s = "locked"; | |
2393 | break; | |
2394 | case MS_SHUTDOWN: | |
2395 | s = "shutdown"; | |
2396 | break; | |
2397 | case MS_RECOVER: | |
2398 | s = "recover"; | |
2399 | break; | |
2400 | case MS_READY: | |
2401 | s = "ready"; | |
2402 | break; | |
2403 | default: | |
2404 | s = "??"; | |
2405 | } | |
9a58a80a | 2406 | seq_printf(m, "%-16s %s\n", "mstate", s); |
7bb5fdc2 | 2407 | |
9a58a80a AD |
2408 | seq_printf(m, "%-16s %s\n", "running", cs->running ? "yes" : "no"); |
2409 | seq_printf(m, "%-16s %s\n", "connected", cs->connected ? "yes" : "no"); | |
2410 | seq_printf(m, "%-16s %s\n", "isdn_up", cs->isdn_up ? "yes" : "no"); | |
2411 | seq_printf(m, "%-16s %s\n", "cidmode", cs->cidmode ? "yes" : "no"); | |
7bb5fdc2 TS |
2412 | |
2413 | for (i = 0; i < cs->channels; i++) { | |
9a58a80a | 2414 | seq_printf(m, "[%d]%-13s %d\n", i, "corrupted", |
475be4d8 | 2415 | cs->bcs[i].corrupted); |
9a58a80a | 2416 | seq_printf(m, "[%d]%-13s %d\n", i, "trans_down", |
475be4d8 | 2417 | cs->bcs[i].trans_down); |
9a58a80a | 2418 | seq_printf(m, "[%d]%-13s %d\n", i, "trans_up", |
475be4d8 | 2419 | cs->bcs[i].trans_up); |
9a58a80a | 2420 | seq_printf(m, "[%d]%-13s %d\n", i, "chstate", |
475be4d8 | 2421 | cs->bcs[i].chstate); |
7bb5fdc2 TS |
2422 | switch (cs->bcs[i].proto2) { |
2423 | case L2_BITSYNC: | |
2424 | s = "bitsync"; | |
2425 | break; | |
2426 | case L2_HDLC: | |
2427 | s = "HDLC"; | |
2428 | break; | |
2429 | case L2_VOICE: | |
2430 | s = "voice"; | |
2431 | break; | |
2432 | default: | |
2433 | s = "??"; | |
2434 | } | |
9a58a80a | 2435 | seq_printf(m, "[%d]%-13s %s\n", i, "proto2", s); |
7bb5fdc2 | 2436 | } |
9a58a80a | 2437 | return 0; |
7bb5fdc2 TS |
2438 | } |
2439 | ||
7bb5fdc2 | 2440 | /** |
bc35b4e3 | 2441 | * gigaset_isdn_regdev() - register device to LL |
7bb5fdc2 TS |
2442 | * @cs: device descriptor structure. |
2443 | * @isdnid: device name. | |
2444 | * | |
81fa7b82 | 2445 | * Return value: 0 on success, error code < 0 on failure |
7bb5fdc2 | 2446 | */ |
bc35b4e3 | 2447 | int gigaset_isdn_regdev(struct cardstate *cs, const char *isdnid) |
7bb5fdc2 TS |
2448 | { |
2449 | struct gigaset_capi_ctr *iif; | |
2450 | int rc; | |
2451 | ||
ee7ff5fe | 2452 | iif = kzalloc(sizeof(*iif), GFP_KERNEL); |
7bb5fdc2 TS |
2453 | if (!iif) { |
2454 | pr_err("%s: out of memory\n", __func__); | |
81fa7b82 | 2455 | return -ENOMEM; |
7bb5fdc2 TS |
2456 | } |
2457 | ||
7bb5fdc2 TS |
2458 | /* prepare controller structure */ |
2459 | iif->ctr.owner = THIS_MODULE; | |
2460 | iif->ctr.driverdata = cs; | |
ee7ff5fe | 2461 | strncpy(iif->ctr.name, isdnid, sizeof(iif->ctr.name) - 1); |
7bb5fdc2 | 2462 | iif->ctr.driver_name = "gigaset"; |
e487639d TS |
2463 | iif->ctr.load_firmware = NULL; |
2464 | iif->ctr.reset_ctr = NULL; | |
7bb5fdc2 TS |
2465 | iif->ctr.register_appl = gigaset_register_appl; |
2466 | iif->ctr.release_appl = gigaset_release_appl; | |
2467 | iif->ctr.send_message = gigaset_send_message; | |
96362fb4 | 2468 | iif->ctr.procinfo = gigaset_procinfo; |
2cd1f0dd | 2469 | iif->ctr.proc_show = gigaset_proc_show, |
7bb5fdc2 TS |
2470 | INIT_LIST_HEAD(&iif->appls); |
2471 | skb_queue_head_init(&iif->sendqueue); | |
2472 | atomic_set(&iif->sendqlen, 0); | |
2473 | ||
2474 | /* register controller with CAPI */ | |
2475 | rc = attach_capi_ctr(&iif->ctr); | |
2476 | if (rc) { | |
2477 | pr_err("attach_capi_ctr failed (%d)\n", rc); | |
7bb5fdc2 | 2478 | kfree(iif); |
81fa7b82 | 2479 | return rc; |
7bb5fdc2 TS |
2480 | } |
2481 | ||
2482 | cs->iif = iif; | |
2483 | cs->hw_hdr_len = CAPI_DATA_B3_REQ_LEN; | |
81fa7b82 | 2484 | return 0; |
7bb5fdc2 TS |
2485 | } |
2486 | ||
2487 | /** | |
bc35b4e3 | 2488 | * gigaset_isdn_unregdev() - unregister device from LL |
7bb5fdc2 | 2489 | * @cs: device descriptor structure. |
7bb5fdc2 | 2490 | */ |
bc35b4e3 | 2491 | void gigaset_isdn_unregdev(struct cardstate *cs) |
7bb5fdc2 TS |
2492 | { |
2493 | struct gigaset_capi_ctr *iif = cs->iif; | |
2494 | ||
2495 | detach_capi_ctr(&iif->ctr); | |
2496 | kfree(iif); | |
2497 | cs->iif = NULL; | |
bc35b4e3 TS |
2498 | } |
2499 | ||
2500 | static struct capi_driver capi_driver_gigaset = { | |
2501 | .name = "gigaset", | |
2502 | .revision = "1.0", | |
2503 | }; | |
2504 | ||
2505 | /** | |
2506 | * gigaset_isdn_regdrv() - register driver to LL | |
2507 | */ | |
2508 | void gigaset_isdn_regdrv(void) | |
2509 | { | |
2510 | pr_info("Kernel CAPI interface\n"); | |
2511 | register_capi_driver(&capi_driver_gigaset); | |
2512 | } | |
2513 | ||
2514 | /** | |
2515 | * gigaset_isdn_unregdrv() - unregister driver from LL | |
2516 | */ | |
2517 | void gigaset_isdn_unregdrv(void) | |
2518 | { | |
7bb5fdc2 TS |
2519 | unregister_capi_driver(&capi_driver_gigaset); |
2520 | } |