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 is the main implementation file for the NFA device manager.
23 *
24 ******************************************************************************/
25
26 #include <string.h>
27 #include "nfa_api.h"
28 #include "nfa_sys.h"
29 #include "nfa_dm_int.h"
30 #include "nfa_sys_int.h"
31
32
33 /*****************************************************************************
34 ** Constants and types
35 *****************************************************************************/
36 static const tNFA_SYS_REG nfa_dm_sys_reg =
37 {
38 nfa_dm_sys_enable,
39 nfa_dm_evt_hdlr,
40 nfa_dm_sys_disable,
41 nfa_dm_proc_nfcc_power_mode
42 };
43
44
45 tNFA_DM_CB nfa_dm_cb = {FALSE};
46
47
48 #define NFA_DM_NUM_ACTIONS (NFA_DM_MAX_EVT & 0x00ff)
49
50 /* type for action functions */
51 typedef BOOLEAN (*tNFA_DM_ACTION) (tNFA_DM_MSG *p_data);
52
53 /* action function list */
54 const tNFA_DM_ACTION nfa_dm_action[] =
55 {
56 /* device manager local device API events */
57 nfa_dm_enable, /* NFA_DM_API_ENABLE_EVT */
58 nfa_dm_disable, /* NFA_DM_API_DISABLE_EVT */
59 nfa_dm_set_config, /* NFA_DM_API_SET_CONFIG_EVT */
60 nfa_dm_get_config, /* NFA_DM_API_GET_CONFIG_EVT */
61 nfa_dm_act_request_excl_rf_ctrl, /* NFA_DM_API_REQUEST_EXCL_RF_CTRL_EVT */
62 nfa_dm_act_release_excl_rf_ctrl, /* NFA_DM_API_RELEASE_EXCL_RF_CTRL_EVT */
63 nfa_dm_act_enable_polling, /* NFA_DM_API_ENABLE_POLLING_EVT */
64 nfa_dm_act_disable_polling, /* NFA_DM_API_DISABLE_POLLING_EVT */
65 nfa_dm_act_enable_listening, /* NFA_DM_API_ENABLE_LISTENING_EVT */
66 nfa_dm_act_disable_listening, /* NFA_DM_API_DISABLE_LISTENING_EVT */
67 nfa_dm_act_pause_p2p, /* NFA_DM_API_PAUSE_P2P_EVT */
68 nfa_dm_act_resume_p2p, /* NFA_DM_API_RESUME_P2P_EVT */
69 nfa_dm_act_send_raw_frame, /* NFA_DM_API_RAW_FRAME_EVT */
70 nfa_dm_set_p2p_listen_tech, /* NFA_DM_API_SET_P2P_LISTEN_TECH_EVT */
71 nfa_dm_act_start_rf_discovery, /* NFA_DM_API_START_RF_DISCOVERY_EVT */
72 nfa_dm_act_stop_rf_discovery, /* NFA_DM_API_STOP_RF_DISCOVERY_EVT */
73 nfa_dm_act_set_rf_disc_duration, /* NFA_DM_API_SET_RF_DISC_DURATION_EVT */
74 nfa_dm_act_select, /* NFA_DM_API_SELECT_EVT */
75 nfa_dm_act_update_rf_params, /* NFA_DM_API_UPDATE_RF_PARAMS_EVT */
76 nfa_dm_act_deactivate, /* NFA_DM_API_DEACTIVATE_EVT */
77 nfa_dm_act_power_off_sleep, /* NFA_DM_API_POWER_OFF_SLEEP_EVT */
78 nfa_dm_ndef_reg_hdlr, /* NFA_DM_API_REG_NDEF_HDLR_EVT */
79 nfa_dm_ndef_dereg_hdlr, /* NFA_DM_API_DEREG_NDEF_HDLR_EVT */
80 nfa_dm_act_reg_vsc, /* NFA_DM_API_REG_VSC_EVT */
81 nfa_dm_act_send_vsc, /* NFA_DM_API_SEND_VSC_EVT */
82 nfa_dm_act_disable_timeout /* NFA_DM_TIMEOUT_DISABLE_EVT */
83 };
84
85 /*****************************************************************************
86 ** Local function prototypes
87 *****************************************************************************/
88 #if (BT_TRACE_VERBOSE == TRUE)
89 static char *nfa_dm_evt_2_str (UINT16 event);
90 #endif
91 /*******************************************************************************
92 **
93 ** Function nfa_dm_init
94 **
95 ** Description Initialises the NFC device manager
96 **
97 ** Returns void
98 **
99 *******************************************************************************/
nfa_dm_init(void)100 void nfa_dm_init (void)
101 {
102 NFA_TRACE_DEBUG0 ("nfa_dm_init ()");
103 memset (&nfa_dm_cb, 0, sizeof (tNFA_DM_CB));
104 nfa_dm_cb.poll_disc_handle = NFA_HANDLE_INVALID;
105 nfa_dm_cb.disc_cb.disc_duration = NFA_DM_DISC_DURATION_POLL;
106 nfa_dm_cb.nfcc_pwr_mode = NFA_DM_PWR_MODE_FULL;
107
108 /* register message handler on NFA SYS */
109 nfa_sys_register (NFA_ID_DM, &nfa_dm_sys_reg);
110 }
111
112 /*******************************************************************************
113 **
114 ** Function nfa_dm_evt_hdlr
115 **
116 ** Description Event handling function for DM
117 **
118 **
119 ** Returns void
120 **
121 *******************************************************************************/
nfa_dm_evt_hdlr(BT_HDR * p_msg)122 BOOLEAN nfa_dm_evt_hdlr (BT_HDR *p_msg)
123 {
124 BOOLEAN freebuf = TRUE;
125 UINT16 event = p_msg->event & 0x00ff;
126
127 #if (BT_TRACE_VERBOSE == TRUE)
128 NFA_TRACE_EVENT2 ("nfa_dm_evt_hdlr event: %s (0x%02x)", nfa_dm_evt_2_str (event), event);
129 #else
130 NFA_TRACE_EVENT1 ("nfa_dm_evt_hdlr event: 0x%x", event);
131 #endif
132
133 /* execute action functions */
134 if (event < NFA_DM_NUM_ACTIONS)
135 {
136 freebuf = (*nfa_dm_action[event]) ((tNFA_DM_MSG*) p_msg);
137 }
138 return freebuf;
139 }
140
141 /*******************************************************************************
142 **
143 ** Function nfa_dm_sys_disable
144 **
145 ** Description This function is called after all subsystems have been disabled.
146 **
147 ** Returns void
148 **
149 *******************************************************************************/
nfa_dm_sys_disable(void)150 void nfa_dm_sys_disable (void)
151 {
152 /* Disable the DM sub-system */
153 /* If discovery state is not IDLE or DEACTIVATED and graceful disable, */
154 /* then we need to deactivate link or stop discovery */
155
156 if (nfa_sys_is_graceful_disable ())
157 {
158 if ( (nfa_dm_cb.disc_cb.disc_state == NFA_DM_RFST_IDLE)
159 &&((nfa_dm_cb.disc_cb.disc_flags & NFA_DM_DISC_FLAGS_DISABLING) == 0) )
160 {
161 /* discovery is not started */
162 nfa_dm_disable_complete ();
163 }
164 else
165 {
166 /* probably waiting to be disabled */
167 NFA_TRACE_WARNING2 ("DM disc_state state = %d disc_flags:0x%x", nfa_dm_cb.disc_cb.disc_state, nfa_dm_cb.disc_cb.disc_flags);
168 }
169
170 }
171 else
172 {
173 nfa_dm_disable_complete ();
174 }
175 }
176
177 /*******************************************************************************
178 **
179 ** Function nfa_dm_is_protocol_supported
180 **
181 ** Description Check if protocol is supported by RW module
182 **
183 ** Returns TRUE if protocol is supported by NFA
184 **
185 *******************************************************************************/
nfa_dm_is_protocol_supported(tNFC_PROTOCOL protocol,UINT8 sel_res)186 BOOLEAN nfa_dm_is_protocol_supported (tNFC_PROTOCOL protocol, UINT8 sel_res)
187 {
188 return ( (protocol == NFC_PROTOCOL_T1T)
189 ||((protocol == NFC_PROTOCOL_T2T) && (sel_res == NFC_SEL_RES_NFC_FORUM_T2T))
190 ||(protocol == NFC_PROTOCOL_T3T)
191 ||(protocol == NFC_PROTOCOL_ISO_DEP)
192 ||(protocol == NFC_PROTOCOL_NFC_DEP)
193 ||(protocol == NFC_PROTOCOL_15693) );
194 }
195 /*******************************************************************************
196 **
197 ** Function nfa_dm_is_active
198 **
199 ** Description check if all modules of NFA is done with enable process and
200 ** NFA is not restoring NFCC.
201 **
202 ** Returns TRUE, if NFA_DM_ENABLE_EVT is reported and it is not restoring NFCC
203 **
204 *******************************************************************************/
nfa_dm_is_active(void)205 BOOLEAN nfa_dm_is_active (void)
206 {
207 NFA_TRACE_DEBUG1 ("nfa_dm_is_active () flags:0x%x", nfa_dm_cb.flags);
208 if ( (nfa_dm_cb.flags & NFA_DM_FLAGS_DM_IS_ACTIVE)
209 &&((nfa_dm_cb.flags & (NFA_DM_FLAGS_ENABLE_EVT_PEND | NFA_DM_FLAGS_NFCC_IS_RESTORING | NFA_DM_FLAGS_POWER_OFF_SLEEP)) == 0) )
210 {
211 return TRUE;
212 }
213 else
214 return FALSE;
215 }
216 /*******************************************************************************
217 **
218 ** Function nfa_dm_check_set_config
219 **
220 ** Description Update config parameters only if it's different from NFCC
221 **
222 **
223 ** Returns tNFA_STATUS
224 **
225 *******************************************************************************/
nfa_dm_check_set_config(UINT8 tlv_list_len,UINT8 * p_tlv_list,BOOLEAN app_init)226 tNFA_STATUS nfa_dm_check_set_config (UINT8 tlv_list_len, UINT8 *p_tlv_list, BOOLEAN app_init)
227 {
228 UINT8 type, len, *p_value, *p_stored, max_len;
229 UINT8 xx = 0, updated_len = 0, *p_cur_len;
230 BOOLEAN update;
231 tNFC_STATUS nfc_status;
232 UINT32 cur_bit;
233
234 NFA_TRACE_DEBUG0 ("nfa_dm_check_set_config ()");
235
236 /* We only allow 32 pending SET_CONFIGs */
237 if (nfa_dm_cb.setcfg_pending_num >= NFA_DM_SETCONFIG_PENDING_MAX)
238 {
239 NFA_TRACE_ERROR0 ("nfa_dm_check_set_config () error: pending number of SET_CONFIG exceeded");
240 return NFA_STATUS_FAILED;
241 }
242
243 while (tlv_list_len - xx >= 2) /* at least type and len */
244 {
245 update = FALSE;
246 type = *(p_tlv_list + xx);
247 len = *(p_tlv_list + xx + 1);
248 p_value = p_tlv_list + xx + 2;
249 p_cur_len = NULL;
250
251 switch (type)
252 {
253 case NFC_PMID_TOTAL_DURATION:
254 p_stored = nfa_dm_cb.params.total_duration;
255 max_len = NCI_PARAM_LEN_TOTAL_DURATION;
256 break;
257
258 /*
259 ** Listen A Configuration
260 */
261 case NFC_PMID_LA_BIT_FRAME_SDD:
262 p_stored = nfa_dm_cb.params.la_bit_frame_sdd;
263 max_len = NCI_PARAM_LEN_LA_BIT_FRAME_SDD;
264 p_cur_len = &nfa_dm_cb.params.la_bit_frame_sdd_len;
265 break;
266 case NFC_PMID_LA_PLATFORM_CONFIG:
267 p_stored = nfa_dm_cb.params.la_platform_config;
268 max_len = NCI_PARAM_LEN_LA_PLATFORM_CONFIG;
269 p_cur_len = &nfa_dm_cb.params.la_platform_config_len;
270 break;
271 case NFC_PMID_LA_SEL_INFO:
272 p_stored = nfa_dm_cb.params.la_sel_info;
273 max_len = NCI_PARAM_LEN_LA_SEL_INFO;
274 p_cur_len = &nfa_dm_cb.params.la_sel_info_len;
275 break;
276 case NFC_PMID_LA_NFCID1:
277 p_stored = nfa_dm_cb.params.la_nfcid1;
278 max_len = NCI_NFCID1_MAX_LEN;
279 p_cur_len = &nfa_dm_cb.params.la_nfcid1_len;
280 break;
281 case NFC_PMID_LA_HIST_BY:
282 p_stored = nfa_dm_cb.params.la_hist_by;
283 max_len = NCI_MAX_HIS_BYTES_LEN;
284 p_cur_len = &nfa_dm_cb.params.la_hist_by_len;
285 break;
286
287 /*
288 ** Listen B Configuration
289 */
290 case NFC_PMID_LB_SENSB_INFO:
291 p_stored = nfa_dm_cb.params.lb_sensb_info;
292 max_len = NCI_PARAM_LEN_LB_SENSB_INFO;
293 p_cur_len = &nfa_dm_cb.params.lb_sensb_info_len;
294 break;
295 case NFC_PMID_LB_NFCID0:
296 p_stored = nfa_dm_cb.params.lb_nfcid0;
297 max_len = NCI_PARAM_LEN_LB_NFCID0;
298 p_cur_len = &nfa_dm_cb.params.lb_nfcid0_len;
299 break;
300 case NFC_PMID_LB_APPDATA:
301 p_stored = nfa_dm_cb.params.lb_appdata;
302 max_len = NCI_PARAM_LEN_LB_APPDATA;
303 p_cur_len = &nfa_dm_cb.params.lb_appdata_len;
304 break;
305 case NFC_PMID_LB_ADC_FO:
306 p_stored = nfa_dm_cb.params.lb_adc_fo;
307 max_len = NCI_PARAM_LEN_LB_ADC_FO;
308 p_cur_len = &nfa_dm_cb.params.lb_adc_fo_len;
309 break;
310 case NFC_PMID_LB_H_INFO:
311 p_stored = nfa_dm_cb.params.lb_h_info;
312 max_len = NCI_MAX_ATTRIB_LEN;
313 p_cur_len = &nfa_dm_cb.params.lb_h_info_len;
314 break;
315
316 /*
317 ** Listen F Configuration
318 */
319 case NFC_PMID_LF_PROTOCOL:
320 p_stored = nfa_dm_cb.params.lf_protocol;
321 max_len = NCI_PARAM_LEN_LF_PROTOCOL;
322 p_cur_len = &nfa_dm_cb.params.lf_protocol_len;
323 break;
324 case NFC_PMID_LF_T3T_FLAGS2:
325 p_stored = nfa_dm_cb.params.lf_t3t_flags2;
326 max_len = NCI_PARAM_LEN_LF_T3T_FLAGS2;
327 p_cur_len = &nfa_dm_cb.params.lf_t3t_flags2_len;
328 break;
329 case NFC_PMID_LF_T3T_PMM:
330 p_stored = nfa_dm_cb.params.lf_t3t_pmm;
331 max_len = NCI_PARAM_LEN_LF_T3T_PMM;
332 break;
333
334 /*
335 ** ISO-DEP and NFC-DEP Configuration
336 */
337 case NFC_PMID_FWI:
338 p_stored = nfa_dm_cb.params.fwi;
339 max_len = NCI_PARAM_LEN_FWI;
340 break;
341 case NFC_PMID_WT:
342 p_stored = nfa_dm_cb.params.wt;
343 max_len = NCI_PARAM_LEN_WT;
344 break;
345 case NFC_PMID_ATR_REQ_GEN_BYTES:
346 p_stored = nfa_dm_cb.params.atr_req_gen_bytes;
347 max_len = NCI_MAX_GEN_BYTES_LEN;
348 p_cur_len = &nfa_dm_cb.params.atr_req_gen_bytes_len;
349 break;
350 case NFC_PMID_ATR_RES_GEN_BYTES:
351 p_stored = nfa_dm_cb.params.atr_res_gen_bytes;
352 max_len = NCI_MAX_GEN_BYTES_LEN;
353 p_cur_len = &nfa_dm_cb.params.atr_res_gen_bytes_len;
354 break;
355 default:
356 /*
357 ** Listen F Configuration
358 */
359 if ((type >= NFC_PMID_LF_T3T_ID1) && (type < NFC_PMID_LF_T3T_ID1 + NFA_CE_LISTEN_INFO_MAX))
360 {
361 p_stored = nfa_dm_cb.params.lf_t3t_id[type - NFC_PMID_LF_T3T_ID1];
362 max_len = NCI_PARAM_LEN_LF_T3T_ID;
363 }
364 else
365 {
366 /* we don't stored this config items */
367 update = TRUE;
368 p_stored = NULL;
369 }
370 break;
371 }
372
373 if ((p_stored)&&(len <= max_len))
374 {
375 if (p_cur_len)
376 {
377 if (*p_cur_len != len)
378 {
379 *p_cur_len = len;
380 update = TRUE;
381 }
382 else if (memcmp (p_value, p_stored, len))
383 {
384 update = TRUE;
385 }
386 }
387 else if (len == max_len) /* fixed length */
388 {
389 if (memcmp (p_value, p_stored, len))
390 {
391 update = TRUE;
392 }
393 }
394 }
395
396 if (update)
397 {
398 /* we don't store this type */
399 if (p_stored)
400 {
401 memcpy (p_stored, p_value, len);
402 }
403
404 /* If need to change TLV in the original list. (Do not modify list if app_init) */
405 if ((updated_len != xx) && (!app_init))
406 {
407 memcpy (p_tlv_list + updated_len, p_tlv_list + xx, (len + 2));
408 }
409 updated_len += (len + 2);
410 }
411 xx += len + 2; /* move to next TLV */
412 }
413
414 /* If any TVLs to update, or if the SetConfig was initiated by the application, then send the SET_CONFIG command */
415 if (updated_len || app_init)
416 {
417 if ((nfc_status = NFC_SetConfig (updated_len, p_tlv_list)) == NFC_STATUS_OK)
418 {
419 /* Keep track of whether we will need to notify NFA_DM_SET_CONFIG_EVT on NFC_SET_CONFIG_REVT */
420
421 /* Get the next available bit offset for this setconfig (based on how many SetConfigs are outstanding) */
422 cur_bit = (UINT32) (1 << nfa_dm_cb.setcfg_pending_num);
423
424 /* If setconfig is due to NFA_SetConfig: then set the bit (NFA_DM_SET_CONFIG_EVT needed on NFC_SET_CONFIG_REVT) */
425 if (app_init)
426 {
427 nfa_dm_cb.setcfg_pending_mask |= cur_bit;
428 }
429 /* Otherwise setconfig is internal: clear the bit (NFA_DM_SET_CONFIG_EVT not needed on NFC_SET_CONFIG_REVT) */
430 else
431 {
432 nfa_dm_cb.setcfg_pending_mask &= ~cur_bit;
433 }
434
435 /* Increment setcfg_pending counter */
436 nfa_dm_cb.setcfg_pending_num++;
437 }
438 return (nfc_status);
439
440 }
441 else
442 {
443 return NFA_STATUS_OK;
444 }
445 }
446
447 #if (BT_TRACE_VERBOSE == TRUE)
448 /*******************************************************************************
449 **
450 ** Function nfa_dm_nfc_revt_2_str
451 **
452 ** Description convert nfc revt to string
453 **
454 *******************************************************************************/
nfa_dm_evt_2_str(UINT16 event)455 static char *nfa_dm_evt_2_str (UINT16 event)
456 {
457 switch (NFA_SYS_EVT_START (NFA_ID_DM) | event)
458 {
459 case NFA_DM_API_ENABLE_EVT:
460 return "NFA_DM_API_ENABLE_EVT";
461
462 case NFA_DM_API_DISABLE_EVT:
463 return "NFA_DM_API_DISABLE_EVT";
464
465 case NFA_DM_API_SET_CONFIG_EVT:
466 return "NFA_DM_API_SET_CONFIG_EVT";
467
468 case NFA_DM_API_GET_CONFIG_EVT:
469 return "NFA_DM_API_GET_CONFIG_EVT";
470
471 case NFA_DM_API_REQUEST_EXCL_RF_CTRL_EVT:
472 return "NFA_DM_API_REQUEST_EXCL_RF_CTRL_EVT";
473
474 case NFA_DM_API_RELEASE_EXCL_RF_CTRL_EVT:
475 return "NFA_DM_API_RELEASE_EXCL_RF_CTRL_EVT";
476
477 case NFA_DM_API_ENABLE_POLLING_EVT:
478 return "NFA_DM_API_ENABLE_POLLING_EVT";
479
480 case NFA_DM_API_DISABLE_POLLING_EVT:
481 return "NFA_DM_API_DISABLE_POLLING_EVT";
482
483 case NFA_DM_API_ENABLE_LISTENING_EVT:
484 return "NFA_DM_API_ENABLE_LISTENING_EVT";
485
486 case NFA_DM_API_DISABLE_LISTENING_EVT:
487 return "NFA_DM_API_DISABLE_LISTENING_EVT";
488
489 case NFA_DM_API_PAUSE_P2P_EVT:
490 return "NFA_DM_API_PAUSE_P2P_EVT";
491
492 case NFA_DM_API_RESUME_P2P_EVT:
493 return "NFA_DM_API_RESUME_P2P_EVT";
494
495 case NFA_DM_API_RAW_FRAME_EVT:
496 return "NFA_DM_API_RAW_FRAME_EVT";
497
498 case NFA_DM_API_SET_P2P_LISTEN_TECH_EVT:
499 return "NFA_DM_API_SET_P2P_LISTEN_TECH_EVT";
500
501 case NFA_DM_API_START_RF_DISCOVERY_EVT:
502 return "NFA_DM_API_START_RF_DISCOVERY_EVT";
503
504 case NFA_DM_API_STOP_RF_DISCOVERY_EVT:
505 return "NFA_DM_API_STOP_RF_DISCOVERY_EVT";
506
507 case NFA_DM_API_SET_RF_DISC_DURATION_EVT:
508 return "NFA_DM_API_SET_RF_DISC_DURATION_EVT";
509
510 case NFA_DM_API_SELECT_EVT:
511 return "NFA_DM_API_SELECT_EVT";
512
513 case NFA_DM_API_UPDATE_RF_PARAMS_EVT:
514 return "NFA_DM_API_UPDATE_RF_PARAMS_EVT";
515
516 case NFA_DM_API_DEACTIVATE_EVT:
517 return "NFA_DM_API_DEACTIVATE_EVT";
518
519 case NFA_DM_API_POWER_OFF_SLEEP_EVT:
520 return "NFA_DM_API_POWER_OFF_SLEEP_EVT";
521
522 case NFA_DM_API_REG_NDEF_HDLR_EVT:
523 return "NFA_DM_API_REG_NDEF_HDLR_EVT";
524
525 case NFA_DM_API_DEREG_NDEF_HDLR_EVT:
526 return "NFA_DM_API_DEREG_NDEF_HDLR_EVT";
527
528 case NFA_DM_TIMEOUT_DISABLE_EVT:
529 return "NFA_DM_TIMEOUT_DISABLE_EVT";
530
531 }
532
533 return "Unknown or Vendor Specific";
534 }
535 #endif /* BT_TRACE_VERBOSE */
536