1 /******************************************************************************
2 *
3 * Copyright (C) 2010-2014 Broadcom Corporation
4 *
5 * Licensed under the Apache License, Version 2.0 (the "License");
6 * you may not use this file except in compliance with the License.
7 * You may obtain a copy of the License at:
8 *
9 * http://www.apache.org/licenses/LICENSE-2.0
10 *
11 * Unless required by applicable law or agreed to in writing, software
12 * distributed under the License is distributed on an "AS IS" BASIS,
13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14 * See the License for the specific language governing permissions and
15 * limitations under the License.
16 *
17 ******************************************************************************/
18
19
20 /******************************************************************************
21 *
22 * This file contains function of the NFC unit to receive/process NCI
23 * commands.
24 *
25 ******************************************************************************/
26 #include <string.h>
27 #include "nfc_target.h"
28 #include "bt_types.h"
29 #include "gki.h"
30
31 #if NFC_INCLUDED == TRUE
32 #include "nci_defs.h"
33 #include "nci_hmsgs.h"
34 #include "nfc_api.h"
35 #include "nfc_int.h"
36
37 /*******************************************************************************
38 **
39 ** Function nci_proc_core_rsp
40 **
41 ** Description Process NCI responses in the CORE group
42 **
43 ** Returns TRUE-caller of this function to free the GKI buffer p_msg
44 **
45 *******************************************************************************/
nci_proc_core_rsp(BT_HDR * p_msg)46 BOOLEAN nci_proc_core_rsp (BT_HDR *p_msg)
47 {
48 UINT8 *p;
49 UINT8 *pp, len, op_code;
50 BOOLEAN free = TRUE;
51 UINT8 *p_old = nfc_cb.last_cmd;
52
53 /* find the start of the NCI message and parse the NCI header */
54 p = (UINT8 *) (p_msg + 1) + p_msg->offset;
55 pp = p+1;
56 NCI_MSG_PRS_HDR1 (pp, op_code);
57 NFC_TRACE_DEBUG1 ("nci_proc_core_rsp opcode:0x%x", op_code);
58 len = *pp++;
59
60 /* process the message based on the opcode and message type */
61 switch (op_code)
62 {
63 case NCI_MSG_CORE_RESET:
64 nfc_ncif_proc_reset_rsp (pp, FALSE);
65 break;
66
67 case NCI_MSG_CORE_INIT:
68 nfc_ncif_proc_init_rsp (p_msg);
69 free = FALSE;
70 break;
71
72 case NCI_MSG_CORE_GET_CONFIG:
73 nfc_ncif_proc_get_config_rsp (p_msg);
74 break;
75
76 case NCI_MSG_CORE_SET_CONFIG:
77 nfc_ncif_set_config_status (pp, len);
78 break;
79
80 case NCI_MSG_CORE_CONN_CREATE:
81 nfc_ncif_proc_conn_create_rsp (p, p_msg->len, *p_old);
82 break;
83
84 case NCI_MSG_CORE_CONN_CLOSE:
85 nfc_ncif_report_conn_close_evt (*p_old, *pp);
86 break;
87
88 default:
89 NFC_TRACE_ERROR1 ("unknown opcode:0x%x", op_code);
90 break;
91 }
92
93 return free;
94 }
95
96 /*******************************************************************************
97 **
98 ** Function nci_proc_core_ntf
99 **
100 ** Description Process NCI notifications in the CORE group
101 **
102 ** Returns void
103 **
104 *******************************************************************************/
nci_proc_core_ntf(BT_HDR * p_msg)105 void nci_proc_core_ntf (BT_HDR *p_msg)
106 {
107 UINT8 *p;
108 UINT8 *pp, len, op_code;
109 UINT8 conn_id;
110
111 /* find the start of the NCI message and parse the NCI header */
112 p = (UINT8 *) (p_msg + 1) + p_msg->offset;
113 pp = p+1;
114 NCI_MSG_PRS_HDR1 (pp, op_code);
115 NFC_TRACE_DEBUG1 ("nci_proc_core_ntf opcode:0x%x", op_code);
116 len = *pp++;
117
118 /* process the message based on the opcode and message type */
119 switch (op_code)
120 {
121 case NCI_MSG_CORE_RESET:
122 nfc_ncif_proc_reset_rsp (pp, TRUE);
123 break;
124
125 case NCI_MSG_CORE_GEN_ERR_STATUS:
126 /* process the error ntf */
127 /* in case of timeout: notify the static connection callback */
128 nfc_ncif_event_status (NFC_GEN_ERROR_REVT, *pp);
129 nfc_ncif_error_status (NFC_RF_CONN_ID, *pp);
130 break;
131
132 case NCI_MSG_CORE_INTF_ERR_STATUS:
133 conn_id = *(pp+1);
134 nfc_ncif_error_status (conn_id, *pp);
135 break;
136
137 case NCI_MSG_CORE_CONN_CREDITS:
138 nfc_ncif_proc_credits(pp, len);
139 break;
140
141 default:
142 NFC_TRACE_ERROR1 ("unknown opcode:0x%x", op_code);
143 break;
144 }
145 }
146
147
148 /*******************************************************************************
149 **
150 ** Function nci_proc_rf_management_rsp
151 **
152 ** Description Process NCI responses in the RF Management group
153 **
154 ** Returns void
155 **
156 *******************************************************************************/
nci_proc_rf_management_rsp(BT_HDR * p_msg)157 void nci_proc_rf_management_rsp (BT_HDR *p_msg)
158 {
159 UINT8 *p;
160 UINT8 *pp, len, op_code;
161 UINT8 *p_old = nfc_cb.last_cmd;
162
163 /* find the start of the NCI message and parse the NCI header */
164 p = (UINT8 *) (p_msg + 1) + p_msg->offset;
165 pp = p+1;
166 NCI_MSG_PRS_HDR1 (pp, op_code);
167 len = *pp++;
168
169 switch (op_code)
170 {
171 case NCI_MSG_RF_DISCOVER:
172 nfc_ncif_rf_management_status (NFC_START_DEVT, *pp);
173 break;
174
175 case NCI_MSG_RF_DISCOVER_SELECT:
176 nfc_ncif_rf_management_status (NFC_SELECT_DEVT, *pp);
177 break;
178
179 case NCI_MSG_RF_T3T_POLLING:
180 break;
181
182 case NCI_MSG_RF_DISCOVER_MAP:
183 nfc_ncif_rf_management_status (NFC_MAP_DEVT, *pp);
184 break;
185
186 case NCI_MSG_RF_DEACTIVATE:
187 nfc_ncif_proc_deactivate (*pp, *p_old, FALSE);
188 break;
189
190 #if (NFC_NFCEE_INCLUDED == TRUE)
191 #if (NFC_RW_ONLY == FALSE)
192
193 case NCI_MSG_RF_SET_ROUTING:
194 nfc_ncif_event_status (NFC_SET_ROUTING_REVT, *pp);
195 break;
196
197 case NCI_MSG_RF_GET_ROUTING:
198 if (*pp != NFC_STATUS_OK)
199 nfc_ncif_event_status (NFC_GET_ROUTING_REVT, *pp);
200 break;
201 #endif
202 #endif
203
204 case NCI_MSG_RF_PARAMETER_UPDATE:
205 nfc_ncif_event_status (NFC_RF_COMM_PARAMS_UPDATE_REVT, *pp);
206 break;
207
208 default:
209 NFC_TRACE_ERROR1 ("unknown opcode:0x%x", op_code);
210 break;
211 }
212 }
213
214 /*******************************************************************************
215 **
216 ** Function nci_proc_rf_management_ntf
217 **
218 ** Description Process NCI notifications in the RF Management group
219 **
220 ** Returns void
221 **
222 *******************************************************************************/
nci_proc_rf_management_ntf(BT_HDR * p_msg)223 void nci_proc_rf_management_ntf (BT_HDR *p_msg)
224 {
225 UINT8 *p;
226 UINT8 *pp, len, op_code;
227
228 /* find the start of the NCI message and parse the NCI header */
229 p = (UINT8 *) (p_msg + 1) + p_msg->offset;
230 pp = p+1;
231 NCI_MSG_PRS_HDR1 (pp, op_code);
232 len = *pp++;
233
234 switch (op_code)
235 {
236 case NCI_MSG_RF_DISCOVER :
237 nfc_ncif_proc_discover_ntf (p, p_msg->len);
238 break;
239
240 case NCI_MSG_RF_DEACTIVATE:
241 nfc_ncif_proc_deactivate (NFC_STATUS_OK, *pp, TRUE);
242 break;
243
244 case NCI_MSG_RF_INTF_ACTIVATED:
245 nfc_ncif_proc_activate (pp, len);
246 break;
247
248 case NCI_MSG_RF_FIELD:
249 nfc_ncif_proc_rf_field_ntf (*pp);
250 break;
251
252 case NCI_MSG_RF_T3T_POLLING:
253 nfc_ncif_proc_t3t_polling_ntf (pp, len);
254 break;
255
256 #if (NFC_NFCEE_INCLUDED == TRUE)
257 #if (NFC_RW_ONLY == FALSE)
258
259 case NCI_MSG_RF_GET_ROUTING:
260 nfc_ncif_proc_get_routing (pp, len);
261 break;
262
263 case NCI_MSG_RF_EE_ACTION:
264 nfc_ncif_proc_ee_action (pp, len);
265 break;
266
267 case NCI_MSG_RF_EE_DISCOVERY_REQ:
268 nfc_ncif_proc_ee_discover_req (pp, len);
269 break;
270 #endif
271 #endif
272
273 default:
274 NFC_TRACE_ERROR1 ("unknown opcode:0x%x", op_code);
275 break;
276 }
277 }
278
279 #if (NFC_NFCEE_INCLUDED == TRUE)
280 #if (NFC_RW_ONLY == FALSE)
281
282 /*******************************************************************************
283 **
284 ** Function nci_proc_ee_management_rsp
285 **
286 ** Description Process NCI responses in the NFCEE Management group
287 **
288 ** Returns void
289 **
290 *******************************************************************************/
nci_proc_ee_management_rsp(BT_HDR * p_msg)291 void nci_proc_ee_management_rsp (BT_HDR *p_msg)
292 {
293 UINT8 *p;
294 UINT8 *pp, len, op_code;
295 tNFC_RESPONSE_CBACK *p_cback = nfc_cb.p_resp_cback;
296 tNFC_NFCEE_DISCOVER_REVT nfcee_discover;
297 tNFC_NFCEE_INFO_REVT nfcee_info;
298 tNFC_NFCEE_MODE_SET_REVT mode_set;
299 tNFC_RESPONSE *p_evt = (tNFC_RESPONSE *) &nfcee_info;
300 tNFC_RESPONSE_EVT event = NFC_NFCEE_INFO_REVT;
301 UINT8 *p_old = nfc_cb.last_cmd;
302
303 /* find the start of the NCI message and parse the NCI header */
304 p = (UINT8 *) (p_msg + 1) + p_msg->offset;
305 pp = p+1;
306 NCI_MSG_PRS_HDR1 (pp, op_code);
307 NFC_TRACE_DEBUG1 ("nci_proc_ee_management_rsp opcode:0x%x", op_code);
308 len = *pp++;
309
310 switch (op_code)
311 {
312 case NCI_MSG_NFCEE_DISCOVER:
313 p_evt = (tNFC_RESPONSE *) &nfcee_discover;
314 nfcee_discover.status = *pp++;
315 nfcee_discover.num_nfcee = *pp++;
316
317 if (nfcee_discover.status != NFC_STATUS_OK)
318 nfcee_discover.num_nfcee = 0;
319
320 event = NFC_NFCEE_DISCOVER_REVT;
321 break;
322
323 case NCI_MSG_NFCEE_MODE_SET:
324 p_evt = (tNFC_RESPONSE *) &mode_set;
325 mode_set.status = *pp;
326 mode_set.nfcee_id = 0;
327 event = NFC_NFCEE_MODE_SET_REVT;
328 mode_set.nfcee_id = *p_old++;
329 mode_set.mode = *p_old++;
330 break;
331
332 default:
333 p_cback = NULL;
334 NFC_TRACE_ERROR1 ("unknown opcode:0x%x", op_code);
335 break;
336 }
337
338 if (p_cback)
339 (*p_cback) (event, p_evt);
340 }
341
342 /*******************************************************************************
343 **
344 ** Function nci_proc_ee_management_ntf
345 **
346 ** Description Process NCI notifications in the NFCEE Management group
347 **
348 ** Returns void
349 **
350 *******************************************************************************/
nci_proc_ee_management_ntf(BT_HDR * p_msg)351 void nci_proc_ee_management_ntf (BT_HDR *p_msg)
352 {
353 UINT8 *p;
354 UINT8 *pp, len, op_code;
355 tNFC_RESPONSE_CBACK *p_cback = nfc_cb.p_resp_cback;
356 tNFC_NFCEE_INFO_REVT nfcee_info;
357 tNFC_RESPONSE *p_evt = (tNFC_RESPONSE *) &nfcee_info;
358 tNFC_RESPONSE_EVT event = NFC_NFCEE_INFO_REVT;
359 UINT8 xx;
360 UINT8 yy;
361 UINT8 ee_status;
362 tNFC_NFCEE_TLV *p_tlv;
363
364 /* find the start of the NCI message and parse the NCI header */
365 p = (UINT8 *) (p_msg + 1) + p_msg->offset;
366 pp = p+1;
367 NCI_MSG_PRS_HDR1 (pp, op_code);
368 NFC_TRACE_DEBUG1 ("nci_proc_ee_management_ntf opcode:0x%x", op_code);
369 len = *pp++;
370
371 if (op_code == NCI_MSG_NFCEE_DISCOVER)
372 {
373 nfcee_info.nfcee_id = *pp++;
374 ee_status = *pp++;
375
376 nfcee_info.ee_status = ee_status;
377 yy = *pp;
378 nfcee_info.num_interface = *pp++;
379 p = pp;
380
381 if (nfcee_info.num_interface > NFC_MAX_EE_INTERFACE)
382 nfcee_info.num_interface = NFC_MAX_EE_INTERFACE;
383
384 for (xx = 0; xx < nfcee_info.num_interface; xx++)
385 {
386 nfcee_info.ee_interface[xx] = *pp++;
387 }
388
389 pp = p + yy;
390 nfcee_info.num_tlvs = *pp++;
391 NFC_TRACE_DEBUG4 ("nfcee_id: 0x%x num_interface:0x%x/0x%x, num_tlvs:0x%x",
392 nfcee_info.nfcee_id, nfcee_info.num_interface, yy, nfcee_info.num_tlvs);
393
394 if (nfcee_info.num_tlvs > NFC_MAX_EE_TLVS)
395 nfcee_info.num_tlvs = NFC_MAX_EE_TLVS;
396
397 p_tlv = &nfcee_info.ee_tlv[0];
398
399 for (xx = 0; xx < nfcee_info.num_tlvs; xx++, p_tlv++)
400 {
401 p_tlv->tag = *pp++;
402 p_tlv->len = yy = *pp++;
403 NFC_TRACE_DEBUG2 ("tag:0x%x, len:0x%x", p_tlv->tag, p_tlv->len);
404 if (p_tlv->len > NFC_MAX_EE_INFO)
405 p_tlv->len = NFC_MAX_EE_INFO;
406 p = pp;
407 STREAM_TO_ARRAY (p_tlv->info, pp, p_tlv->len);
408 pp = p += yy;
409 }
410 }
411 else
412 {
413 p_cback = NULL;
414 NFC_TRACE_ERROR1 ("unknown opcode:0x%x", op_code);
415 }
416
417 if (p_cback)
418 (*p_cback) (event, p_evt);
419 }
420
421 #endif
422 #endif
423
424 /*******************************************************************************
425 **
426 ** Function nci_proc_prop_rsp
427 **
428 ** Description Process NCI responses in the Proprietary group
429 **
430 ** Returns void
431 **
432 *******************************************************************************/
nci_proc_prop_rsp(BT_HDR * p_msg)433 void nci_proc_prop_rsp (BT_HDR *p_msg)
434 {
435 UINT8 *p;
436 UINT8 *p_evt;
437 UINT8 *pp, len, op_code;
438 tNFC_VS_CBACK *p_cback = (tNFC_VS_CBACK *)nfc_cb.p_vsc_cback;
439
440 /* find the start of the NCI message and parse the NCI header */
441 p = p_evt = (UINT8 *) (p_msg + 1) + p_msg->offset;
442 pp = p+1;
443 NCI_MSG_PRS_HDR1 (pp, op_code);
444 len = *pp++;
445
446 /*If there's a pending/stored command, restore the associated address of the callback function */
447 if (p_cback)
448 (*p_cback) ((tNFC_VS_EVT) (NCI_RSP_BIT|op_code), p_msg->len, p_evt);
449 }
450
451 /*******************************************************************************
452 **
453 ** Function nci_proc_prop_ntf
454 **
455 ** Description Process NCI notifications in the Proprietary group
456 **
457 ** Returns void
458 **
459 *******************************************************************************/
nci_proc_prop_ntf(BT_HDR * p_msg)460 void nci_proc_prop_ntf (BT_HDR *p_msg)
461 {
462 UINT8 *p;
463 UINT8 *p_evt;
464 UINT8 *pp, len, op_code;
465 int i;
466
467 /* find the start of the NCI message and parse the NCI header */
468 p = p_evt = (UINT8 *) (p_msg + 1) + p_msg->offset;
469 pp = p+1;
470 NCI_MSG_PRS_HDR1 (pp, op_code);
471 len = *pp++;
472
473 for (i = 0; i < NFC_NUM_VS_CBACKS; i++)
474 {
475 if (nfc_cb.p_vs_cb[i])
476 {
477 (*nfc_cb.p_vs_cb[i]) ((tNFC_VS_EVT) (NCI_NTF_BIT|op_code), p_msg->len, p_evt);
478 }
479 }
480 }
481
482 #endif /* NFC_INCLUDED == TRUE*/
483