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 * This is the main implementation file for the NFA EE.
22 *
23 ******************************************************************************/
24 #include <string>
25
26 #include <android-base/stringprintf.h>
27 #include <base/logging.h>
28
29 #include "nfa_dm_int.h"
30 #include "nfa_ee_int.h"
31 #include "nfc_config.h"
32
33 using android::base::StringPrintf;
34
35 extern bool nfc_debug_enabled;
36
37 /*****************************************************************************
38 ** Global Variables
39 *****************************************************************************/
40
41 /* system manager control block definition */
42 tNFA_EE_CB nfa_ee_cb;
43
44 /*****************************************************************************
45 ** Constants
46 *****************************************************************************/
47 static const tNFA_SYS_REG nfa_ee_sys_reg = {nfa_ee_sys_enable, nfa_ee_evt_hdlr,
48 nfa_ee_sys_disable,
49 nfa_ee_proc_nfcc_power_mode};
50
51 #define NFA_EE_NUM_ACTIONS (NFA_EE_MAX_EVT & 0x00ff)
52
53 const tNFA_EE_SM_ACT nfa_ee_actions[] = {
54 /* NFA-EE action function/ internal events */
55 nfa_ee_api_discover, /* NFA_EE_API_DISCOVER_EVT */
56 nfa_ee_api_register, /* NFA_EE_API_REGISTER_EVT */
57 nfa_ee_api_deregister, /* NFA_EE_API_DEREGISTER_EVT */
58 nfa_ee_api_mode_set, /* NFA_EE_API_MODE_SET_EVT */
59 nfa_ee_api_set_tech_cfg, /* NFA_EE_API_SET_TECH_CFG_EVT */
60 nfa_ee_api_clear_tech_cfg, /*NFA_EE_API_CLEAR_TECH_CFG_EVT */
61 nfa_ee_api_set_proto_cfg, /* NFA_EE_API_SET_PROTO_CFG_EVT */
62 nfa_ee_api_clear_proto_cfg, /*NFA_EE_API_CLEAR_PROTO_CFG_EVT*/
63 nfa_ee_api_add_aid, /* NFA_EE_API_ADD_AID_EVT */
64 nfa_ee_api_remove_aid, /* NFA_EE_API_REMOVE_AID_EVT */
65 nfa_ee_api_add_sys_code, /* NFA_EE_API_ADD_SYSCODE_EVT */
66 nfa_ee_api_remove_sys_code, /* NFA_EE_API_REMOVE_SYSCODE_EVT*/
67 nfa_ee_api_lmrt_size, /* NFA_EE_API_LMRT_SIZE_EVT */
68 nfa_ee_api_update_now, /* NFA_EE_API_UPDATE_NOW_EVT */
69 nfa_ee_api_connect, /* NFA_EE_API_CONNECT_EVT */
70 nfa_ee_api_send_data, /* NFA_EE_API_SEND_DATA_EVT */
71 nfa_ee_api_disconnect, /* NFA_EE_API_DISCONNECT_EVT */
72 nfa_ee_nci_disc_rsp, /* NFA_EE_NCI_DISC_RSP_EVT */
73 nfa_ee_nci_disc_ntf, /* NFA_EE_NCI_DISC_NTF_EVT */
74 nfa_ee_nci_mode_set_rsp, /* NFA_EE_NCI_MODE_SET_RSP_EVT */
75 nfa_ee_nci_conn, /* NFA_EE_NCI_CONN_EVT */
76 nfa_ee_nci_conn, /* NFA_EE_NCI_DATA_EVT */
77 nfa_ee_nci_action_ntf, /* NFA_EE_NCI_ACTION_NTF_EVT */
78 nfa_ee_nci_disc_req_ntf, /* NFA_EE_NCI_DISC_REQ_NTF_EVT */
79 nfa_ee_nci_wait_rsp, /* NFA_EE_NCI_WAIT_RSP_EVT */
80 nfa_ee_rout_timeout, /* NFA_EE_ROUT_TIMEOUT_EVT */
81 nfa_ee_discv_timeout, /* NFA_EE_DISCV_TIMEOUT_EVT */
82 nfa_ee_lmrt_to_nfcc, /* NFA_EE_CFG_TO_NFCC_EVT */
83 nfa_ee_nci_nfcee_status_ntf /*NFA_EE_NCI_NFCEE_STATUS_NTF_EVT*/
84 };
85
86 /*******************************************************************************
87 **
88 ** Function nfa_ee_init
89 **
90 ** Description Initialize NFA EE control block
91 ** register to NFA SYS
92 **
93 ** Returns None
94 **
95 *******************************************************************************/
nfa_ee_init(void)96 void nfa_ee_init(void) {
97 int xx;
98
99 DLOG_IF(INFO, nfc_debug_enabled) << __func__;
100
101 /* initialize control block */
102 memset(&nfa_ee_cb, 0, sizeof(tNFA_EE_CB));
103 for (xx = 0; xx < NFA_EE_MAX_EE_SUPPORTED; xx++) {
104 nfa_ee_cb.ecb[xx].nfcee_id = NFA_EE_INVALID;
105 nfa_ee_cb.ecb[xx].ee_status = NFC_NFCEE_STATUS_INACTIVE;
106 }
107
108 nfa_ee_cb.ecb[NFA_EE_CB_4_DH].ee_status = NFC_NFCEE_STATUS_ACTIVE;
109 nfa_ee_cb.ecb[NFA_EE_CB_4_DH].nfcee_id = NFC_DH_ID;
110
111 /* register message handler on NFA SYS */
112 nfa_sys_register(NFA_ID_EE, &nfa_ee_sys_reg);
113 }
114
115 /*******************************************************************************
116 **
117 ** Function nfa_ee_sys_enable
118 **
119 ** Description Enable NFA EE
120 **
121 ** Returns None
122 **
123 *******************************************************************************/
nfa_ee_sys_enable(void)124 void nfa_ee_sys_enable(void) {
125 DLOG_IF(INFO, nfc_debug_enabled) << StringPrintf("%s", __func__);
126
127 nfa_ee_cb.route_block_control = 0x00;
128
129 if (NfcConfig::hasKey(NAME_NFA_AID_BLOCK_ROUTE)) {
130 unsigned retlen = NfcConfig::getUnsigned(NAME_NFA_AID_BLOCK_ROUTE);
131 if ((retlen == 0x01) && (NFC_GetNCIVersion() == NCI_VERSION_2_0)) {
132 nfa_ee_cb.route_block_control = NCI_ROUTE_QUAL_BLOCK_ROUTE;
133 DLOG_IF(INFO, nfc_debug_enabled) << StringPrintf(
134 "nfa_ee_cb.route_block_control=0x%x", nfa_ee_cb.route_block_control);
135 }
136 }
137
138 if (nfa_ee_max_ee_cfg) {
139 /* collect NFCEE information */
140 NFC_NfceeDiscover(true);
141 nfa_sys_start_timer(&nfa_ee_cb.discv_timer, NFA_EE_DISCV_TIMEOUT_EVT,
142 NFA_EE_DISCV_TIMEOUT_VAL);
143 } else {
144 nfa_ee_cb.em_state = NFA_EE_EM_STATE_INIT_DONE;
145 nfa_sys_cback_notify_enable_complete(NFA_ID_EE);
146 }
147 }
148
149 /*******************************************************************************
150 **
151 ** Function nfa_ee_restore_one_ecb
152 **
153 ** Description activate the NFCEE and restore the routing when
154 ** changing power state from low power mode to full power mode
155 **
156 ** Returns None
157 **
158 *******************************************************************************/
nfa_ee_restore_one_ecb(tNFA_EE_ECB * p_cb)159 void nfa_ee_restore_one_ecb(tNFA_EE_ECB* p_cb) {
160 uint8_t mask;
161 tNFC_NFCEE_MODE_SET_REVT rsp;
162 tNFA_EE_NCI_MODE_SET ee_msg;
163
164 DLOG_IF(INFO, nfc_debug_enabled) << StringPrintf(
165 "nfcee_id:0x%x, ecb_flags:0x%x ee_status:0x%x "
166 "ee_old_status: 0x%x",
167 p_cb->nfcee_id, p_cb->ecb_flags, p_cb->ee_status, p_cb->ee_old_status);
168 if ((p_cb->nfcee_id != NFA_EE_INVALID) &&
169 (p_cb->ee_status & NFA_EE_STATUS_RESTORING) == 0 &&
170 (p_cb->ee_old_status & NFA_EE_STATUS_RESTORING) != 0) {
171 p_cb->ee_old_status &= ~NFA_EE_STATUS_RESTORING;
172 mask = nfa_ee_ecb_to_mask(p_cb);
173 if (p_cb->ee_status != p_cb->ee_old_status) {
174 p_cb->ecb_flags |= NFA_EE_ECB_FLAGS_RESTORE;
175 if (p_cb->ee_old_status == NFC_NFCEE_STATUS_ACTIVE) {
176 NFC_NfceeModeSet(p_cb->nfcee_id, NFC_MODE_ACTIVATE);
177
178 if (nfa_ee_cb.ee_cfged & mask) {
179 /* if any routing is configured on this NFCEE. need to mark this NFCEE
180 * as changed
181 * to cause the configuration to be sent to NFCC again */
182 p_cb->ecb_flags |= NFA_EE_ECB_FLAGS_ROUTING;
183 p_cb->ecb_flags |= NFA_EE_ECB_FLAGS_VS;
184 }
185 } else {
186 NFC_NfceeModeSet(p_cb->nfcee_id, NFC_MODE_DEACTIVATE);
187 }
188 } else if (p_cb->ee_status == NFC_NFCEE_STATUS_ACTIVE) {
189 /* the initial NFCEE status after start up is the same as the current
190 * status and it's active:
191 * process the same as the host gets activate rsp */
192 p_cb->ecb_flags |= NFA_EE_ECB_FLAGS_RESTORE;
193 if (nfa_ee_cb.ee_cfged & mask) {
194 /* if any routing is configured on this NFCEE. need to mark this NFCEE
195 * as changed
196 * to cause the configuration to be sent to NFCC again */
197 p_cb->ecb_flags |= NFA_EE_ECB_FLAGS_ROUTING;
198 p_cb->ecb_flags |= NFA_EE_ECB_FLAGS_VS;
199 }
200 rsp.mode = NFA_EE_MD_ACTIVATE;
201 rsp.nfcee_id = p_cb->nfcee_id;
202 rsp.status = NFA_STATUS_OK;
203 ee_msg.p_data = &rsp;
204 tNFA_EE_MSG nfa_ee_msg;
205 nfa_ee_msg.mode_set_rsp = ee_msg;
206 nfa_ee_nci_mode_set_rsp(&nfa_ee_msg);
207 }
208 }
209 }
210
211 /*******************************************************************************
212 **
213 ** Function nfa_ee_proc_nfcc_power_mode
214 **
215 ** Description Restore NFA EE sub-module
216 **
217 ** Returns None
218 **
219 *******************************************************************************/
nfa_ee_proc_nfcc_power_mode(uint8_t nfcc_power_mode)220 void nfa_ee_proc_nfcc_power_mode(uint8_t nfcc_power_mode) {
221 uint32_t xx;
222 tNFA_EE_ECB* p_cb;
223 bool proc_complete = true;
224
225 DLOG_IF(INFO, nfc_debug_enabled)
226 << StringPrintf("nfcc_power_mode=%d", nfcc_power_mode);
227 /* if NFCC power state is change to full power */
228 if (nfcc_power_mode == NFA_DM_PWR_MODE_FULL) {
229 if (nfa_ee_max_ee_cfg) {
230 p_cb = nfa_ee_cb.ecb;
231 for (xx = 0; xx < NFA_EE_MAX_EE_SUPPORTED; xx++, p_cb++) {
232 p_cb->ee_old_status = 0;
233 if (xx >= nfa_ee_cb.cur_ee) p_cb->nfcee_id = NFA_EE_INVALID;
234
235 if ((p_cb->nfcee_id != NFA_EE_INVALID) &&
236 (p_cb->ee_interface[0] != NFC_NFCEE_INTERFACE_HCI_ACCESS) &&
237 (p_cb->ee_status != NFA_EE_STATUS_REMOVED)) {
238 proc_complete = false;
239 /* NFA_EE_STATUS_RESTORING bit makes sure the ee_status restore to
240 * ee_old_status
241 * NFA_EE_STATUS_RESTORING bit is cleared in ee_status at
242 * NFCEE_DISCOVER NTF.
243 * NFA_EE_STATUS_RESTORING bit is cleared in ee_old_status at
244 * restoring the activate/inactive status after NFCEE_DISCOVER NTF */
245 p_cb->ee_status |= NFA_EE_STATUS_RESTORING;
246 p_cb->ee_old_status = p_cb->ee_status;
247 /* NFA_EE_FLAGS_RESTORE bit makes sure the routing/nci logical
248 * connection is restore to prior to entering low power mode */
249 p_cb->ecb_flags |= NFA_EE_ECB_FLAGS_RESTORE;
250 }
251 }
252 nfa_ee_cb.em_state = NFA_EE_EM_STATE_RESTORING;
253 nfa_ee_cb.num_ee_expecting = 0;
254 if (nfa_sys_is_register(NFA_ID_HCI)) {
255 nfa_ee_cb.ee_flags |= NFA_EE_FLAG_WAIT_HCI;
256 nfa_ee_cb.ee_flags |= NFA_EE_FLAG_NOTIFY_HCI;
257 }
258 NFC_NfceeDiscover(true);
259 nfa_sys_start_timer(&nfa_ee_cb.discv_timer, NFA_EE_DISCV_TIMEOUT_EVT,
260 NFA_EE_DISCV_TIMEOUT_VAL);
261 }
262 } else {
263 nfa_sys_stop_timer(&nfa_ee_cb.timer);
264 nfa_sys_stop_timer(&nfa_ee_cb.discv_timer);
265 nfa_ee_cb.num_ee_expecting = 0;
266 }
267
268 if (proc_complete)
269 nfa_sys_cback_notify_nfcc_power_mode_proc_complete(NFA_ID_EE);
270 }
271
272 /*******************************************************************************
273 **
274 ** Function nfa_ee_proc_hci_info_cback
275 **
276 ** Description HCI initialization complete from power off sleep mode
277 **
278 ** Returns None
279 **
280 *******************************************************************************/
nfa_ee_proc_hci_info_cback(void)281 void nfa_ee_proc_hci_info_cback(void) {
282 uint32_t xx;
283 tNFA_EE_ECB* p_cb;
284 tNFA_EE_MSG data;
285
286 DLOG_IF(INFO, nfc_debug_enabled) << __func__;
287 /* if NFCC power state is change to full power */
288 nfa_ee_cb.ee_flags &= ~NFA_EE_FLAG_WAIT_HCI;
289
290 p_cb = nfa_ee_cb.ecb;
291 for (xx = 0; xx < NFA_EE_MAX_EE_SUPPORTED; xx++, p_cb++) {
292 /* NCI spec says: An NFCEE_DISCOVER_NTF that contains a Protocol type of
293 * "HCI Access"
294 * SHALL NOT contain any other additional Protocol
295 * i.e. check only first supported NFCEE interface is HCI access */
296 /* NFA_HCI module handles restoring configurations for HCI access */
297 if (p_cb->ee_interface[0] != NFC_NFCEE_INTERFACE_HCI_ACCESS) {
298 nfa_ee_restore_one_ecb(p_cb);
299 }
300 }
301
302 if (nfa_ee_restore_ntf_done()) {
303 nfa_ee_check_restore_complete();
304 if (nfa_ee_cb.em_state == NFA_EE_EM_STATE_INIT_DONE) {
305 if (nfa_ee_cb.discv_timer.in_use) {
306 nfa_sys_stop_timer(&nfa_ee_cb.discv_timer);
307 data.hdr.event = NFA_EE_DISCV_TIMEOUT_EVT;
308 nfa_ee_evt_hdlr(&data.hdr);
309 }
310 }
311 }
312 }
313
314 /*******************************************************************************
315 **
316 ** Function nfa_ee_proc_evt
317 **
318 ** Description Process NFCEE related events from NFC stack
319 **
320 **
321 ** Returns None
322 **
323 *******************************************************************************/
nfa_ee_proc_evt(tNFC_RESPONSE_EVT event,void * p_data)324 void nfa_ee_proc_evt(tNFC_RESPONSE_EVT event, void* p_data) {
325 tNFA_EE_INT_EVT int_event = 0;
326 tNFA_EE_NCI_WAIT_RSP cbk;
327
328 switch (event) {
329 case NFC_NFCEE_DISCOVER_REVT: /* 4 NFCEE Discover response */
330 int_event = NFA_EE_NCI_DISC_RSP_EVT;
331 break;
332
333 case NFC_NFCEE_INFO_REVT: /* 5 NFCEE Discover Notification */
334 int_event = NFA_EE_NCI_DISC_NTF_EVT;
335 break;
336
337 case NFC_NFCEE_MODE_SET_REVT: /* 6 NFCEE Mode Set response */
338 int_event = NFA_EE_NCI_MODE_SET_RSP_EVT;
339 break;
340
341 case NFC_EE_ACTION_REVT:
342 int_event = NFA_EE_NCI_ACTION_NTF_EVT;
343 break;
344
345 case NFC_EE_DISCOVER_REQ_REVT: /* 10 EE Discover Req notification */
346 int_event = NFA_EE_NCI_DISC_REQ_NTF_EVT;
347 break;
348
349 case NFC_SET_ROUTING_REVT:
350 int_event = NFA_EE_NCI_WAIT_RSP_EVT;
351 cbk.opcode = NCI_MSG_RF_SET_ROUTING;
352 break;
353
354 case NFC_NFCEE_STATUS_REVT:
355 int_event = NFA_EE_NCI_NFCEE_STATUS_NTF_EVT;
356 break;
357 }
358
359 DLOG_IF(INFO, nfc_debug_enabled) << StringPrintf(
360 "nfa_ee_proc_evt: event=0x%02x int_event:0x%x", event, int_event);
361 if (int_event) {
362 cbk.hdr.event = int_event;
363 cbk.p_data = p_data;
364 tNFA_EE_MSG nfa_ee_msg;
365 nfa_ee_msg.wait_rsp = cbk;
366
367 nfa_ee_evt_hdlr(&nfa_ee_msg.hdr);
368 }
369 }
370
371 /*******************************************************************************
372 **
373 ** Function nfa_ee_ecb_to_mask
374 **
375 ** Description Given a ecb, return the bit mask to be used in
376 ** nfa_ee_cb.ee_cfged
377 **
378 ** Returns the bitmask for the given ecb.
379 **
380 *******************************************************************************/
nfa_ee_ecb_to_mask(tNFA_EE_ECB * p_cb)381 uint8_t nfa_ee_ecb_to_mask(tNFA_EE_ECB* p_cb) {
382 uint8_t mask;
383 uint8_t index;
384
385 index = (uint8_t)(p_cb - nfa_ee_cb.ecb);
386 mask = 1 << index;
387
388 return mask;
389 }
390
391 /*******************************************************************************
392 **
393 ** Function nfa_ee_find_ecb
394 **
395 ** Description Return the ecb associated with the given nfcee_id
396 **
397 ** Returns tNFA_EE_ECB
398 **
399 *******************************************************************************/
nfa_ee_find_ecb(uint8_t nfcee_id)400 tNFA_EE_ECB* nfa_ee_find_ecb(uint8_t nfcee_id) {
401 uint32_t xx;
402 tNFA_EE_ECB *p_ret = nullptr, *p_cb;
403 DLOG_IF(INFO, nfc_debug_enabled) << __func__;
404
405 if (nfcee_id == NFC_DH_ID) {
406 p_ret = &nfa_ee_cb.ecb[NFA_EE_CB_4_DH];
407 } else {
408 p_cb = nfa_ee_cb.ecb;
409 for (xx = 0; xx < NFA_EE_MAX_EE_SUPPORTED; xx++, p_cb++) {
410 if (nfcee_id == p_cb->nfcee_id) {
411 p_ret = p_cb;
412 break;
413 }
414 }
415 }
416
417 return p_ret;
418 }
419
420 /*******************************************************************************
421 **
422 ** Function nfa_ee_find_ecb_by_conn_id
423 **
424 ** Description Return the ecb associated with the given connection id
425 **
426 ** Returns tNFA_EE_ECB
427 **
428 *******************************************************************************/
nfa_ee_find_ecb_by_conn_id(uint8_t conn_id)429 tNFA_EE_ECB* nfa_ee_find_ecb_by_conn_id(uint8_t conn_id) {
430 uint32_t xx;
431 tNFA_EE_ECB *p_ret = nullptr, *p_cb;
432 DLOG_IF(INFO, nfc_debug_enabled) << __func__;
433
434 p_cb = nfa_ee_cb.ecb;
435 for (xx = 0; xx < nfa_ee_cb.cur_ee; xx++, p_cb++) {
436 if (conn_id == p_cb->conn_id) {
437 p_ret = p_cb;
438 break;
439 }
440 }
441
442 return p_ret;
443 }
444
445 /*******************************************************************************
446 **
447 ** Function nfa_ee_sys_disable
448 **
449 ** Description Deregister NFA EE from NFA SYS/DM
450 **
451 **
452 ** Returns None
453 **
454 *******************************************************************************/
nfa_ee_sys_disable(void)455 void nfa_ee_sys_disable(void) {
456 uint32_t xx;
457 tNFA_EE_ECB* p_cb;
458 tNFA_EE_MSG msg;
459
460 DLOG_IF(INFO, nfc_debug_enabled) << __func__;
461
462 nfa_ee_cb.em_state = NFA_EE_EM_STATE_DISABLED;
463 /* report NFA_EE_DEREGISTER_EVT to all registered to EE */
464 for (xx = 0; xx < NFA_EE_MAX_CBACKS; xx++) {
465 if (nfa_ee_cb.p_ee_cback[xx]) {
466 msg.deregister.index = xx;
467 nfa_ee_api_deregister(&msg);
468 }
469 }
470
471 nfa_ee_cb.num_ee_expecting = 0;
472 p_cb = nfa_ee_cb.ecb;
473 for (xx = 0; xx < nfa_ee_cb.cur_ee; xx++, p_cb++) {
474 if (p_cb->conn_st == NFA_EE_CONN_ST_CONN) {
475 if (nfa_sys_is_graceful_disable()) {
476 /* Disconnect NCI connection on graceful shutdown */
477 msg.disconnect.p_cb = p_cb;
478 nfa_ee_api_disconnect(&msg);
479 nfa_ee_cb.num_ee_expecting++;
480 } else {
481 /* fake NFA_EE_DISCONNECT_EVT on ungraceful shutdown */
482 msg.conn.conn_id = p_cb->conn_id;
483 msg.conn.event = NFC_CONN_CLOSE_CEVT;
484 nfa_ee_nci_conn(&msg);
485 }
486 }
487 }
488
489 if (nfa_ee_cb.num_ee_expecting) {
490 nfa_ee_cb.ee_flags |= NFA_EE_FLAG_WAIT_DISCONN;
491 nfa_ee_cb.em_state = NFA_EE_EM_STATE_DISABLING;
492 }
493
494 nfa_sys_stop_timer(&nfa_ee_cb.timer);
495 nfa_sys_stop_timer(&nfa_ee_cb.discv_timer);
496
497 /* If Application initiated NFCEE discovery, fake/report the event */
498 nfa_ee_report_disc_done(false);
499
500 /* deregister message handler on NFA SYS */
501 if (nfa_ee_cb.em_state == NFA_EE_EM_STATE_DISABLED)
502 nfa_sys_deregister(NFA_ID_EE);
503 }
504
505 /*******************************************************************************
506 **
507 ** Function nfa_ee_check_disable
508 **
509 ** Description Check if it is safe to move to disabled state
510 **
511 ** Returns None
512 **
513 *******************************************************************************/
nfa_ee_check_disable(void)514 void nfa_ee_check_disable(void) {
515 if (!(nfa_ee_cb.ee_flags & NFA_EE_FLAG_WAIT_DISCONN)) {
516 nfa_ee_cb.em_state = NFA_EE_EM_STATE_DISABLED;
517 nfa_sys_deregister(NFA_ID_EE);
518 }
519 }
520 /*******************************************************************************
521 **
522 ** Function nfa_ee_reg_cback_enable_done
523 **
524 ** Description Allow a module to register to EE to be notified when NFA-EE
525 ** finishes enable process
526 **
527 ** Returns None
528 **
529 *******************************************************************************/
nfa_ee_reg_cback_enable_done(tNFA_EE_ENABLE_DONE_CBACK * p_cback)530 void nfa_ee_reg_cback_enable_done(tNFA_EE_ENABLE_DONE_CBACK* p_cback) {
531 nfa_ee_cb.p_enable_cback = p_cback;
532 }
533
534 /*******************************************************************************
535 **
536 ** Function nfa_ee_sm_st_2_str
537 **
538 ** Description convert nfa-ee state to string
539 **
540 *******************************************************************************/
nfa_ee_sm_st_2_str(uint8_t state)541 static std::string nfa_ee_sm_st_2_str(uint8_t state) {
542 switch (state) {
543 case NFA_EE_EM_STATE_INIT:
544 return "INIT";
545 case NFA_EE_EM_STATE_INIT_DONE:
546 return "INIT_DONE";
547 case NFA_EE_EM_STATE_RESTORING:
548 return "RESTORING";
549 case NFA_EE_EM_STATE_DISABLING:
550 return "DISABLING";
551 case NFA_EE_EM_STATE_DISABLED:
552 return "DISABLED";
553 default:
554 return "Unknown";
555 }
556 }
557
558 /*******************************************************************************
559 **
560 ** Function nfa_ee_sm_evt_2_str
561 **
562 ** Description convert nfa-ee evt to string
563 **
564 *******************************************************************************/
nfa_ee_sm_evt_2_str(uint16_t event)565 static std::string nfa_ee_sm_evt_2_str(uint16_t event) {
566 switch (event) {
567 case NFA_EE_API_DISCOVER_EVT:
568 return "API_DISCOVER";
569 case NFA_EE_API_REGISTER_EVT:
570 return "API_REGISTER";
571 case NFA_EE_API_DEREGISTER_EVT:
572 return "API_DEREGISTER";
573 case NFA_EE_API_MODE_SET_EVT:
574 return "API_MODE_SET";
575 case NFA_EE_API_SET_TECH_CFG_EVT:
576 return "API_SET_TECH_CFG";
577 case NFA_EE_API_CLEAR_TECH_CFG_EVT:
578 return "API_CLEAR_TECH_CFG";
579 case NFA_EE_API_SET_PROTO_CFG_EVT:
580 return "API_SET_PROTO_CFG";
581 case NFA_EE_API_CLEAR_PROTO_CFG_EVT:
582 return "API_CLEAR_PROTO_CFG";
583 case NFA_EE_API_ADD_AID_EVT:
584 return "API_ADD_AID";
585 case NFA_EE_API_REMOVE_AID_EVT:
586 return "API_REMOVE_AID";
587 case NFA_EE_API_ADD_SYSCODE_EVT:
588 return "NFA_EE_API_ADD_SYSCODE_EVT";
589 case NFA_EE_API_REMOVE_SYSCODE_EVT:
590 return "NFA_EE_API_REMOVE_SYSCODE_EVT";
591 case NFA_EE_API_LMRT_SIZE_EVT:
592 return "API_LMRT_SIZE";
593 case NFA_EE_API_UPDATE_NOW_EVT:
594 return "API_UPDATE_NOW";
595 case NFA_EE_API_CONNECT_EVT:
596 return "API_CONNECT";
597 case NFA_EE_API_SEND_DATA_EVT:
598 return "API_SEND_DATA";
599 case NFA_EE_API_DISCONNECT_EVT:
600 return "API_DISCONNECT";
601 case NFA_EE_NCI_DISC_RSP_EVT:
602 return "NCI_DISC_RSP";
603 case NFA_EE_NCI_DISC_NTF_EVT:
604 return "NCI_DISC_NTF";
605 case NFA_EE_NCI_MODE_SET_RSP_EVT:
606 return "NCI_MODE_SET";
607 case NFA_EE_NCI_CONN_EVT:
608 return "NCI_CONN";
609 case NFA_EE_NCI_DATA_EVT:
610 return "NCI_DATA";
611 case NFA_EE_NCI_ACTION_NTF_EVT:
612 return "NCI_ACTION";
613 case NFA_EE_NCI_DISC_REQ_NTF_EVT:
614 return "NCI_DISC_REQ";
615 case NFA_EE_NCI_WAIT_RSP_EVT:
616 return "NCI_WAIT_RSP";
617 case NFA_EE_ROUT_TIMEOUT_EVT:
618 return "ROUT_TIMEOUT";
619 case NFA_EE_DISCV_TIMEOUT_EVT:
620 return "NFA_EE_DISCV_TIMEOUT_EVT";
621 case NFA_EE_CFG_TO_NFCC_EVT:
622 return "CFG_TO_NFCC";
623 default:
624 return "Unknown";
625 }
626 }
627
628 /*******************************************************************************
629 **
630 ** Function nfa_ee_evt_hdlr
631 **
632 ** Description Processing event for NFA EE
633 **
634 **
635 ** Returns TRUE if p_msg needs to be deallocated
636 **
637 *******************************************************************************/
nfa_ee_evt_hdlr(NFC_HDR * p_msg)638 bool nfa_ee_evt_hdlr(NFC_HDR* p_msg) {
639 bool act = false;
640
641 DLOG_IF(INFO, nfc_debug_enabled) << StringPrintf(
642 "Event %s(0x%02x), State: %s(%d)",
643 nfa_ee_sm_evt_2_str(p_msg->event).c_str(), p_msg->event,
644 nfa_ee_sm_st_2_str(nfa_ee_cb.em_state).c_str(), nfa_ee_cb.em_state);
645
646 switch (nfa_ee_cb.em_state) {
647 case NFA_EE_EM_STATE_INIT_DONE:
648 case NFA_EE_EM_STATE_RESTORING:
649 act = true;
650 break;
651 case NFA_EE_EM_STATE_INIT:
652 if ((p_msg->event == NFA_EE_NCI_DISC_NTF_EVT) ||
653 (p_msg->event == NFA_EE_NCI_DISC_RSP_EVT))
654 act = true;
655 break;
656 case NFA_EE_EM_STATE_DISABLING:
657 if (p_msg->event == NFA_EE_NCI_CONN_EVT) act = true;
658 break;
659 }
660
661 tNFA_EE_MSG* p_evt_data = (tNFA_EE_MSG*)p_msg;
662 if (act) {
663 uint16_t event = p_msg->event & 0x00ff;
664 if (event < NFA_EE_NUM_ACTIONS) {
665 (*nfa_ee_actions[event])(p_evt_data);
666 }
667 } else {
668 /* If the event is not handled, free the data packet. */
669 /* FIXME: Is it really always tNFA_EE_NCI_CONN? */
670 if (p_msg->event == NFA_EE_NCI_DATA_EVT)
671 GKI_freebuf(p_evt_data->conn.p_data);
672 }
673
674 return true;
675 }
676