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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 file contains the action functions the NFA_RW state machine.
22  *
23  ******************************************************************************/
24 #include <log/log.h>
25 #include <string.h>
26 
27 #include <android-base/stringprintf.h>
28 #include <base/logging.h>
29 
30 #include "ndef_utils.h"
31 #include "nfa_dm_int.h"
32 #include "nfa_mem_co.h"
33 #include "nfa_rw_int.h"
34 
35 using android::base::StringPrintf;
36 
37 extern bool nfc_debug_enabled;
38 
39 #define NFA_RW_OPTION_INVALID 0xFF
40 
41 /* Tag sleep req cmd*/
42 uint8_t NFA_RW_TAG_SLP_REQ[] = {0x50, 0x00};
43 
44 /* Local static function prototypes */
45 static tNFC_STATUS nfa_rw_start_ndef_read(void);
46 static tNFC_STATUS nfa_rw_start_ndef_write(void);
47 static tNFC_STATUS nfa_rw_start_ndef_detection(void);
48 static tNFC_STATUS nfa_rw_config_tag_ro(bool b_hard_lock);
49 static bool nfa_rw_op_req_while_busy(tNFA_RW_MSG* p_data);
50 static bool nfa_rw_op_req_while_inactive(tNFA_RW_MSG* p_data);
51 static void nfa_rw_error_cleanup(uint8_t event);
52 static void nfa_rw_presence_check(tNFA_RW_MSG* p_data);
53 static void nfa_rw_handle_t2t_evt(tRW_EVENT event, tRW_DATA* p_rw_data);
54 static bool nfa_rw_detect_ndef(void);
55 static void nfa_rw_cback(tRW_EVENT event, tRW_DATA* p_rw_data);
56 static void nfa_rw_handle_mfc_evt(tRW_EVENT event, tRW_DATA* p_rw_data);
57 
58 /*******************************************************************************
59 **
60 ** Function         nfa_rw_free_ndef_rx_buf
61 **
62 ** Description      Free buffer allocated to hold incoming NDEF message
63 **
64 ** Returns          Nothing
65 **
66 *******************************************************************************/
nfa_rw_free_ndef_rx_buf(void)67 void nfa_rw_free_ndef_rx_buf(void) {
68   if (nfa_rw_cb.p_ndef_buf) {
69     nfa_mem_co_free(nfa_rw_cb.p_ndef_buf);
70     nfa_rw_cb.p_ndef_buf = nullptr;
71   }
72 }
73 
74 /*******************************************************************************
75 **
76 ** Function         nfa_rw_store_ndef_rx_buf
77 **
78 ** Description      Store data into NDEF buffer
79 **
80 ** Returns          Nothing
81 **
82 *******************************************************************************/
nfa_rw_store_ndef_rx_buf(tRW_DATA * p_rw_data)83 static void nfa_rw_store_ndef_rx_buf(tRW_DATA* p_rw_data) {
84   uint8_t* p;
85 
86   p = (uint8_t*)(p_rw_data->data.p_data + 1) + p_rw_data->data.p_data->offset;
87 
88   if ((nfa_rw_cb.ndef_rd_offset + p_rw_data->data.p_data->len) <=
89       nfa_rw_cb.ndef_cur_size) {
90     /* Save data into buffer */
91     memcpy(&nfa_rw_cb.p_ndef_buf[nfa_rw_cb.ndef_rd_offset], p,
92            p_rw_data->data.p_data->len);
93     nfa_rw_cb.ndef_rd_offset += p_rw_data->data.p_data->len;
94   } else {
95     LOG(ERROR) << StringPrintf("Exceed ndef_cur_size error");
96     android_errorWriteLog(0x534e4554, "123583388");
97   }
98 
99   GKI_freebuf(p_rw_data->data.p_data);
100   p_rw_data->data.p_data = nullptr;
101 }
102 
103 /*******************************************************************************
104 **
105 ** Function         nfa_rw_send_data_to_upper
106 **
107 ** Description      Send data to upper layer
108 **
109 ** Returns          Nothing
110 **
111 *******************************************************************************/
nfa_rw_send_data_to_upper(tRW_DATA * p_rw_data)112 static void nfa_rw_send_data_to_upper(tRW_DATA* p_rw_data) {
113   tNFA_CONN_EVT_DATA conn_evt_data;
114 
115   if ((p_rw_data->status == NFC_STATUS_TIMEOUT) ||
116       (p_rw_data->data.p_data == nullptr))
117     return;
118 
119   DLOG_IF(INFO, nfc_debug_enabled)
120       << StringPrintf("nfa_rw_send_data_to_upper: Len [0x%X] Status [%s]",
121                       p_rw_data->data.p_data->len,
122                       NFC_GetStatusName(p_rw_data->data.status).c_str());
123 
124   /* Notify conn cback of NFA_DATA_EVT */
125   conn_evt_data.data.status = p_rw_data->data.status;
126   conn_evt_data.data.p_data =
127       (uint8_t*)(p_rw_data->data.p_data + 1) + p_rw_data->data.p_data->offset;
128   conn_evt_data.data.len = p_rw_data->data.p_data->len;
129 
130   nfa_dm_act_conn_cback_notify(NFA_DATA_EVT, &conn_evt_data);
131 
132   GKI_freebuf(p_rw_data->data.p_data);
133   p_rw_data->data.p_data = nullptr;
134 }
135 
136 /*******************************************************************************
137 **
138 ** Function         nfa_rw_error_cleanup
139 **
140 ** Description      Handle failure - signal command complete and notify app
141 **
142 ** Returns          Nothing
143 **
144 *******************************************************************************/
nfa_rw_error_cleanup(uint8_t event)145 static void nfa_rw_error_cleanup(uint8_t event) {
146   tNFA_CONN_EVT_DATA conn_evt_data;
147 
148   nfa_rw_command_complete();
149 
150   conn_evt_data.status = NFA_STATUS_FAILED;
151 
152   nfa_dm_act_conn_cback_notify(event, &conn_evt_data);
153 }
154 
155 /*******************************************************************************
156 **
157 ** Function         nfa_rw_check_start_presence_check_timer
158 **
159 ** Description      Start timer to wait for specified time before presence check
160 **
161 ** Returns          Nothing
162 **
163 *******************************************************************************/
nfa_rw_check_start_presence_check_timer(uint16_t presence_check_start_delay)164 static void nfa_rw_check_start_presence_check_timer(
165     uint16_t presence_check_start_delay) {
166   if (!p_nfa_dm_cfg->auto_presence_check) return;
167 
168   if (nfa_rw_cb.flags & NFA_RW_FL_NOT_EXCL_RF_MODE) {
169     if (presence_check_start_delay) {
170       DLOG_IF(INFO, nfc_debug_enabled)
171           << StringPrintf("Starting presence check timer...");
172       nfa_sys_start_timer(&nfa_rw_cb.tle, NFA_RW_PRESENCE_CHECK_TICK_EVT,
173                           presence_check_start_delay);
174     } else {
175       /* Presence check now */
176       nfa_rw_presence_check(nullptr);
177     }
178   }
179 }
180 
181 /*******************************************************************************
182 **
183 ** Function         nfa_rw_stop_presence_check_timer
184 **
185 ** Description      Stop timer for presence check
186 **
187 ** Returns          Nothing
188 **
189 *******************************************************************************/
nfa_rw_stop_presence_check_timer(void)190 void nfa_rw_stop_presence_check_timer(void) {
191   nfa_sys_stop_timer(&nfa_rw_cb.tle);
192   DLOG_IF(INFO, nfc_debug_enabled)
193       << StringPrintf("Stopped presence check timer (if started)");
194 }
195 
196 /*******************************************************************************
197 **
198 ** Function         nfa_rw_handle_ndef_detect
199 **
200 ** Description      Handler for NDEF detection reader/writer event
201 **
202 ** Returns          Nothing
203 **
204 *******************************************************************************/
nfa_rw_handle_ndef_detect(tRW_DATA * p_rw_data)205 static void nfa_rw_handle_ndef_detect(tRW_DATA* p_rw_data) {
206   tNFA_CONN_EVT_DATA conn_evt_data;
207 
208   DLOG_IF(INFO, nfc_debug_enabled) << StringPrintf(
209       "NDEF Detection completed: cur_size=%i, max_size=%i, flags=0x%x",
210       p_rw_data->ndef.cur_size, p_rw_data->ndef.max_size,
211       p_rw_data->ndef.flags);
212 
213   /* Check if NDEF detection succeeded */
214   if (p_rw_data->ndef.status == NFC_STATUS_OK) {
215     /* Set NDEF detection state */
216     nfa_rw_cb.ndef_st = NFA_RW_NDEF_ST_TRUE;
217     nfa_rw_cb.flags |= NFA_RW_FL_NDEF_OK;
218 
219     /* Store ndef properties */
220     conn_evt_data.ndef_detect.status = NFA_STATUS_OK;
221     conn_evt_data.ndef_detect.protocol = p_rw_data->ndef.protocol;
222     conn_evt_data.ndef_detect.cur_size = nfa_rw_cb.ndef_cur_size =
223         p_rw_data->ndef.cur_size;
224     conn_evt_data.ndef_detect.max_size = nfa_rw_cb.ndef_max_size =
225         p_rw_data->ndef.max_size;
226     conn_evt_data.ndef_detect.flags = p_rw_data->ndef.flags;
227 
228     if (p_rw_data->ndef.flags & RW_NDEF_FL_READ_ONLY)
229       nfa_rw_cb.flags |= NFA_RW_FL_TAG_IS_READONLY;
230     else
231       nfa_rw_cb.flags &= ~NFA_RW_FL_TAG_IS_READONLY;
232 
233     /* Determine what operation triggered the NDEF detection procedure */
234     if (nfa_rw_cb.cur_op == NFA_RW_OP_READ_NDEF) {
235       /* if ndef detection was done as part of ndef-read operation, then perform
236        * ndef read now */
237       conn_evt_data.status = nfa_rw_start_ndef_read();
238       if (conn_evt_data.status != NFA_STATUS_OK) {
239         /* Failed to start NDEF Read */
240 
241         /* Command complete - perform cleanup, notify app */
242         nfa_rw_command_complete();
243         nfa_dm_act_conn_cback_notify(NFA_READ_CPLT_EVT, &conn_evt_data);
244       }
245     } else if (nfa_rw_cb.cur_op == NFA_RW_OP_WRITE_NDEF) {
246       /* if ndef detection was done as part of ndef-write operation, then
247        * perform ndef write now */
248       conn_evt_data.status = nfa_rw_start_ndef_write();
249       if (conn_evt_data.status != NFA_STATUS_OK) {
250         /* Failed to start NDEF Write.  */
251 
252         /* Command complete - perform cleanup, notify app */
253         nfa_rw_command_complete();
254         nfa_dm_act_conn_cback_notify(NFA_WRITE_CPLT_EVT, &conn_evt_data);
255       }
256     } else {
257       /* current op was stand-alone NFA_DetectNDef. Command complete - perform
258        * cleanup and notify app */
259       nfa_rw_cb.cur_op = NFA_RW_OP_MAX;
260       nfa_rw_command_complete();
261 
262       nfa_dm_act_conn_cback_notify(NFA_NDEF_DETECT_EVT, &conn_evt_data);
263     }
264   } else {
265     /* NDEF detection failed... */
266 
267     /* Command complete - perform cleanup, notify app */
268     nfa_rw_command_complete();
269     nfa_rw_cb.ndef_st = NFA_RW_NDEF_ST_FALSE;
270     conn_evt_data.status = p_rw_data->ndef.status;
271 
272     if (nfa_rw_cb.cur_op == NFA_RW_OP_READ_NDEF) {
273       /* if ndef detection was done as part of ndef-read operation, then notify
274        * NDEF handlers of failure */
275       nfa_dm_ndef_handle_message(NFA_STATUS_FAILED, nullptr, 0);
276 
277       /* Notify app of read status */
278       nfa_dm_act_conn_cback_notify(NFA_READ_CPLT_EVT, &conn_evt_data);
279     } else if (nfa_rw_cb.cur_op == NFA_RW_OP_WRITE_NDEF) {
280       /* if ndef detection was done as part of ndef-write operation, then notify
281        * app of failure */
282       nfa_dm_act_conn_cback_notify(NFA_WRITE_CPLT_EVT, &conn_evt_data);
283     } else if (nfa_rw_cb.cur_op == NFA_RW_OP_DETECT_NDEF) {
284       conn_evt_data.ndef_detect.protocol = p_rw_data->ndef.protocol;
285       /* current op was stand-alone NFA_DetectNDef. Notify app of failure */
286       if (p_rw_data->ndef.status == NFC_STATUS_TIMEOUT) {
287         /* Tag could have moved away */
288         conn_evt_data.ndef_detect.cur_size = 0;
289         conn_evt_data.ndef_detect.max_size = 0;
290         conn_evt_data.ndef_detect.flags = RW_NDEF_FL_UNKNOWN;
291         conn_evt_data.ndef_detect.status = NFA_STATUS_TIMEOUT;
292       } else {
293         /* NDEF Detection failed for other reasons */
294         conn_evt_data.ndef_detect.cur_size = nfa_rw_cb.ndef_cur_size =
295             p_rw_data->ndef.cur_size;
296         conn_evt_data.ndef_detect.max_size = nfa_rw_cb.ndef_max_size =
297             p_rw_data->ndef.max_size;
298         conn_evt_data.ndef_detect.flags = p_rw_data->ndef.flags;
299       }
300       nfa_dm_act_conn_cback_notify(NFA_NDEF_DETECT_EVT, &conn_evt_data);
301     }
302 
303     nfa_rw_cb.cur_op = NFA_RW_OP_MAX; /* clear current operation */
304   }
305 }
306 
307 /*******************************************************************************
308 **
309 ** Function         nfa_rw_handle_tlv_detect
310 **
311 ** Description      Handler for TLV detection reader/writer event
312 **
313 ** Returns          Nothing
314 **
315 *******************************************************************************/
nfa_rw_handle_tlv_detect(tRW_DATA * p_rw_data)316 static void nfa_rw_handle_tlv_detect(tRW_DATA* p_rw_data) {
317   tNFA_CONN_EVT_DATA conn_evt_data;
318 
319   /* Set TLV detection state */
320   if (nfa_rw_cb.cur_op == NFA_RW_OP_SET_TAG_RO) {
321     if (nfa_rw_cb.tlv_st == NFA_RW_TLV_DETECT_ST_OP_NOT_STARTED) {
322       nfa_rw_cb.tlv_st = NFA_RW_TLV_DETECT_ST_LOCK_TLV_OP_COMPLETE;
323     } else {
324       nfa_rw_cb.tlv_st = NFA_RW_TLV_DETECT_ST_COMPLETE;
325     }
326   } else {
327     if (nfa_rw_cb.cur_op == NFA_RW_OP_DETECT_LOCK_TLV) {
328       nfa_rw_cb.tlv_st |= NFA_RW_TLV_DETECT_ST_LOCK_TLV_OP_COMPLETE;
329     } else if (nfa_rw_cb.cur_op == NFA_RW_OP_DETECT_MEM_TLV) {
330       nfa_rw_cb.tlv_st |= NFA_RW_TLV_DETECT_ST_MEM_TLV_OP_COMPLETE;
331     }
332   }
333 
334   /* Check if TLV detection succeeded */
335   if (p_rw_data->tlv.status == NFC_STATUS_OK) {
336     DLOG_IF(INFO, nfc_debug_enabled) << StringPrintf(
337         "TLV Detection succeeded: num_bytes=%i", p_rw_data->tlv.num_bytes);
338 
339     /* Store tlv properties */
340     conn_evt_data.tlv_detect.status = NFA_STATUS_OK;
341     conn_evt_data.tlv_detect.protocol = p_rw_data->tlv.protocol;
342     conn_evt_data.tlv_detect.num_bytes = p_rw_data->tlv.num_bytes;
343 
344     /* Determine what operation triggered the TLV detection procedure */
345     if (nfa_rw_cb.cur_op == NFA_RW_OP_SET_TAG_RO) {
346       if (nfa_rw_config_tag_ro(nfa_rw_cb.b_hard_lock) != NFC_STATUS_OK) {
347         /* Failed to set tag read only */
348         conn_evt_data.tlv_detect.status = NFA_STATUS_FAILED;
349         nfa_dm_act_conn_cback_notify(NFA_SET_TAG_RO_EVT, &conn_evt_data);
350       }
351     } else {
352       /* current op was stand-alone NFA_DetectTlv. Command complete - perform
353        * cleanup and notify app */
354       nfa_rw_command_complete();
355       nfa_dm_act_conn_cback_notify(NFA_TLV_DETECT_EVT, &conn_evt_data);
356     }
357   }
358 
359   /* Handle failures */
360   if (p_rw_data->tlv.status != NFC_STATUS_OK) {
361     /* Command complete - perform cleanup, notify the app */
362     nfa_rw_command_complete();
363 
364     conn_evt_data.tlv_detect.status = NFA_STATUS_FAILED;
365     if ((nfa_rw_cb.cur_op == NFA_RW_OP_DETECT_LOCK_TLV) ||
366         (nfa_rw_cb.cur_op == NFA_RW_OP_DETECT_MEM_TLV)) {
367       nfa_dm_act_conn_cback_notify(NFA_TLV_DETECT_EVT, &conn_evt_data);
368     } else if (nfa_rw_cb.cur_op == NFA_RW_OP_SET_TAG_RO) {
369       if (nfa_rw_config_tag_ro(nfa_rw_cb.b_hard_lock) != NFC_STATUS_OK) {
370         /* Failed to set tag read only */
371         conn_evt_data.tlv_detect.status = NFA_STATUS_FAILED;
372         nfa_dm_act_conn_cback_notify(NFA_SET_TAG_RO_EVT, &conn_evt_data);
373       }
374     }
375   }
376 }
377 
378 /*******************************************************************************
379 **
380 ** Function         nfa_rw_handle_sleep_wakeup_rsp
381 **
382 ** Description      Handl sleep wakeup
383 **
384 ** Returns          Nothing
385 **
386 *******************************************************************************/
nfa_rw_handle_sleep_wakeup_rsp(tNFC_STATUS status)387 void nfa_rw_handle_sleep_wakeup_rsp(tNFC_STATUS status) {
388   tNFC_ACTIVATE_DEVT activate_params;
389   tRW_EVENT event;
390 
391   if ((nfa_rw_cb.halt_event != RW_T2T_MAX_EVT) &&
392       (nfa_rw_cb.activated_tech_mode == NFC_DISCOVERY_TYPE_POLL_A) &&
393       (nfa_rw_cb.protocol == NFC_PROTOCOL_T2T) &&
394       (nfa_rw_cb.pa_sel_res == NFC_SEL_RES_NFC_FORUM_T2T)) {
395     DLOG_IF(INFO, nfc_debug_enabled) << StringPrintf(
396         "nfa_rw_handle_sleep_wakeup_rsp; Attempt to wake up Type 2 tag from "
397         "HALT State is complete");
398     if (status == NFC_STATUS_OK) {
399       /* Type 2 Tag is wakeup from HALT state */
400       DLOG_IF(INFO, nfc_debug_enabled) << StringPrintf(
401           "nfa_rw_handle_sleep_wakeup_rsp; Handle the NACK rsp received now");
402       /* Initialize control block */
403       activate_params.protocol = nfa_rw_cb.protocol;
404       activate_params.rf_tech_param.param.pa.sel_rsp = nfa_rw_cb.pa_sel_res;
405       activate_params.rf_tech_param.mode = nfa_rw_cb.activated_tech_mode;
406 
407       /* Initialize RW module */
408       if ((RW_SetActivatedTagType(&activate_params, nfa_rw_cback)) !=
409           NFC_STATUS_OK) {
410         /* Log error (stay in NFA_RW_ST_ACTIVATED state until deactivation) */
411         LOG(ERROR) << StringPrintf("RW_SetActivatedTagType failed.");
412         if (nfa_rw_cb.halt_event == RW_T2T_READ_CPLT_EVT) {
413           if (nfa_rw_cb.rw_data.data.p_data)
414             GKI_freebuf(nfa_rw_cb.rw_data.data.p_data);
415           nfa_rw_cb.rw_data.data.p_data = nullptr;
416         }
417         /* Do not try to detect NDEF again but just notify current operation
418          * failed */
419         nfa_rw_cb.halt_event = RW_T2T_MAX_EVT;
420       }
421     }
422 
423     /* The current operation failed with NACK rsp from type 2 tag */
424     nfa_rw_cb.rw_data.status = NFC_STATUS_FAILED;
425     event = nfa_rw_cb.halt_event;
426 
427     /* Got NACK rsp during presence check and legacy presence check performed */
428     if (nfa_rw_cb.cur_op == NFA_RW_OP_PRESENCE_CHECK)
429       nfa_rw_cb.rw_data.status = status;
430 
431     /* If cannot Sleep wakeup tag, then NDEF Detect operation is complete */
432     if ((status != NFC_STATUS_OK) &&
433         (nfa_rw_cb.halt_event == RW_T2T_NDEF_DETECT_EVT))
434       nfa_rw_cb.halt_event = RW_T2T_MAX_EVT;
435 
436     nfa_rw_handle_t2t_evt(event, &nfa_rw_cb.rw_data);
437     nfa_rw_cb.halt_event = RW_T2T_MAX_EVT;
438 
439     /* If Type 2 tag sleep wakeup failed and If in normal mode (not-exclusive RF
440      * mode) then deactivate the link if sleep wakeup failed */
441     if ((nfa_rw_cb.flags & NFA_RW_FL_NOT_EXCL_RF_MODE) &&
442         (status != NFC_STATUS_OK)) {
443       DLOG_IF(INFO, nfc_debug_enabled)
444           << StringPrintf("Sleep wakeup failed. Deactivating...");
445       nfa_dm_rf_deactivate(NFA_DEACTIVATE_TYPE_DISCOVERY);
446     }
447   } else {
448     DLOG_IF(INFO, nfc_debug_enabled) << StringPrintf(
449         "nfa_rw_handle_sleep_wakeup_rsp; Legacy presence check performed");
450     /* Legacy presence check performed */
451     nfa_rw_handle_presence_check_rsp(status);
452   }
453 }
454 
455 /*******************************************************************************
456 **
457 ** Function         nfa_rw_handle_presence_check_rsp
458 **
459 ** Description      Handler RW_T#t_PRESENCE_CHECK_EVT
460 **
461 ** Returns          Nothing
462 **
463 *******************************************************************************/
nfa_rw_handle_presence_check_rsp(tNFC_STATUS status)464 void nfa_rw_handle_presence_check_rsp(tNFC_STATUS status) {
465   NFC_HDR* p_pending_msg;
466 
467   /* Stop the presence check timer - timer may have been started when presence
468    * check started */
469   nfa_rw_stop_presence_check_timer();
470   if (status == NFA_STATUS_OK) {
471     /* Clear the BUSY flag and restart the presence-check timer */
472     nfa_rw_command_complete();
473   } else {
474     /* If presence check failed just clear the BUSY flag */
475     nfa_rw_cb.flags &= ~NFA_RW_FL_API_BUSY;
476   }
477 
478   /* Handle presence check due to auto-presence-check  */
479   if (nfa_rw_cb.flags & NFA_RW_FL_AUTO_PRESENCE_CHECK_BUSY) {
480     nfa_rw_cb.flags &= ~NFA_RW_FL_AUTO_PRESENCE_CHECK_BUSY;
481 
482     /* If an API was called during auto-presence-check, then handle it now */
483     if (nfa_rw_cb.p_pending_msg) {
484       /* If NFA_RwPresenceCheck was called during auto-presence-check, notify
485        * app of result */
486       if (nfa_rw_cb.p_pending_msg->op_req.op == NFA_RW_OP_PRESENCE_CHECK) {
487         /* Notify app of presence check status */
488         tNFA_CONN_EVT_DATA nfa_conn_evt_data;
489         nfa_conn_evt_data.status = status;
490         nfa_dm_act_conn_cback_notify(NFA_PRESENCE_CHECK_EVT,
491                                      &nfa_conn_evt_data);
492         GKI_freebuf(nfa_rw_cb.p_pending_msg);
493         nfa_rw_cb.p_pending_msg = nullptr;
494       }
495       /* For all other APIs called during auto-presence check, perform the
496          command now (if tag is still present) */
497       else if (status == NFC_STATUS_OK) {
498         DLOG_IF(INFO, nfc_debug_enabled) << StringPrintf(
499             "Performing deferred operation after presence check...");
500         p_pending_msg = (NFC_HDR*)nfa_rw_cb.p_pending_msg;
501         nfa_rw_cb.p_pending_msg = nullptr;
502         nfa_rw_handle_event(p_pending_msg);
503         GKI_freebuf(p_pending_msg);
504       } else {
505         /* Tag no longer present. Free command for pending API command */
506         GKI_freebuf(nfa_rw_cb.p_pending_msg);
507         nfa_rw_cb.p_pending_msg = nullptr;
508       }
509     }
510 
511     /* Auto-presence check failed. Deactivate */
512     if (status != NFC_STATUS_OK) {
513       DLOG_IF(INFO, nfc_debug_enabled)
514           << StringPrintf("Auto presence check failed. Deactivating...");
515       nfa_dm_rf_deactivate(NFA_DEACTIVATE_TYPE_DISCOVERY);
516     }
517   }
518   /* Handle presence check due to NFA_RwPresenceCheck API call */
519   else {
520     /* Notify app of presence check status */
521     tNFA_CONN_EVT_DATA nfa_conn_evt_data;
522     nfa_conn_evt_data.status = status;
523     nfa_dm_act_conn_cback_notify(NFA_PRESENCE_CHECK_EVT, &nfa_conn_evt_data);
524 
525     /* If in normal mode (not-exclusive RF mode) then deactivate the link if
526      * presence check failed */
527     if ((nfa_rw_cb.flags & NFA_RW_FL_NOT_EXCL_RF_MODE) &&
528         (nfa_conn_evt_data.status != NFC_STATUS_OK)) {
529       DLOG_IF(INFO, nfc_debug_enabled)
530           << StringPrintf("Presence check failed. Deactivating...");
531       nfa_dm_rf_deactivate(NFA_DEACTIVATE_TYPE_DISCOVERY);
532     }
533   }
534 }
535 
536 /*******************************************************************************
537 **
538 ** Function         nfa_rw_handle_t1t_evt
539 **
540 ** Description      Handler for Type-1 tag reader/writer events
541 **
542 ** Returns          Nothing
543 **
544 *******************************************************************************/
nfa_rw_handle_t1t_evt(tRW_EVENT event,tRW_DATA * p_rw_data)545 static void nfa_rw_handle_t1t_evt(tRW_EVENT event, tRW_DATA* p_rw_data) {
546   tNFA_CONN_EVT_DATA conn_evt_data;
547   tNFA_TAG_PARAMS tag_params;
548   uint8_t* p_rid_rsp;
549   tNFA_STATUS activation_status;
550 
551   conn_evt_data.status = p_rw_data->data.status;
552   switch (event) {
553     case RW_T1T_RID_EVT:
554       if (p_rw_data->data.p_data != nullptr) {
555         /* Assume the data is just the response byte sequence */
556         p_rid_rsp = (uint8_t*)(p_rw_data->data.p_data + 1) +
557                     p_rw_data->data.p_data->offset;
558         /* Fetch HR from RID response message */
559         STREAM_TO_ARRAY(tag_params.t1t.hr, p_rid_rsp, T1T_HR_LEN);
560         /* Fetch UID0-3 from RID response message */
561         STREAM_TO_ARRAY(tag_params.t1t.uid, p_rid_rsp, T1T_CMD_UID_LEN);
562         GKI_freebuf(p_rw_data->data.p_data);
563         p_rw_data->data.p_data = nullptr;
564       }
565 
566       /* Command complete - perform cleanup, notify the app */
567       nfa_rw_command_complete();
568 
569       if (p_rw_data->status == NFC_STATUS_TIMEOUT) {
570         activation_status = NFA_STATUS_TIMEOUT;
571       } else {
572         activation_status = NFA_STATUS_OK;
573       }
574 
575       nfa_dm_notify_activation_status(activation_status, &tag_params);
576       break;
577 
578     case RW_T1T_RALL_CPLT_EVT:
579     case RW_T1T_READ_CPLT_EVT:
580     case RW_T1T_RSEG_CPLT_EVT:
581     case RW_T1T_READ8_CPLT_EVT:
582       nfa_rw_send_data_to_upper(p_rw_data);
583 
584       /* Command complete - perform cleanup, notify the app */
585       nfa_rw_command_complete();
586       nfa_dm_act_conn_cback_notify(NFA_READ_CPLT_EVT, &conn_evt_data);
587       break;
588 
589     case RW_T1T_WRITE_E_CPLT_EVT:
590     case RW_T1T_WRITE_NE_CPLT_EVT:
591     case RW_T1T_WRITE_E8_CPLT_EVT:
592     case RW_T1T_WRITE_NE8_CPLT_EVT:
593       nfa_rw_send_data_to_upper(p_rw_data);
594 
595       /* Command complete - perform cleanup, notify the app */
596       nfa_rw_command_complete();
597       nfa_dm_act_conn_cback_notify(NFA_WRITE_CPLT_EVT, &conn_evt_data);
598       break;
599 
600     case RW_T1T_TLV_DETECT_EVT:
601       nfa_rw_handle_tlv_detect(p_rw_data);
602       break;
603 
604     case RW_T1T_NDEF_DETECT_EVT:
605       nfa_rw_cb.tlv_st = NFA_RW_TLV_DETECT_ST_COMPLETE;
606 
607       if ((p_rw_data->status != NFC_STATUS_OK) &&
608           (nfa_rw_cb.cur_op == NFA_RW_OP_WRITE_NDEF) &&
609           (p_rw_data->ndef.flags & NFA_RW_NDEF_FL_FORMATABLE) &&
610           (!(p_rw_data->ndef.flags & NFA_RW_NDEF_FL_FORMATED)) &&
611           (p_rw_data->ndef.flags & NFA_RW_NDEF_FL_SUPPORTED)) {
612         /* Tag is in Initialized state, Format the tag first and then Write NDEF
613          */
614         if (RW_T1tFormatNDef() == NFC_STATUS_OK) break;
615       }
616 
617       nfa_rw_handle_ndef_detect(p_rw_data);
618 
619       break;
620 
621     case RW_T1T_NDEF_READ_EVT:
622       nfa_rw_cb.tlv_st = NFA_RW_TLV_DETECT_ST_COMPLETE;
623       if (p_rw_data->status == NFC_STATUS_OK) {
624         /* Process the ndef record */
625         nfa_dm_ndef_handle_message(NFA_STATUS_OK, nfa_rw_cb.p_ndef_buf,
626                                    nfa_rw_cb.ndef_cur_size);
627       } else {
628         /* Notify app of failure */
629         if (nfa_rw_cb.cur_op == NFA_RW_OP_READ_NDEF) {
630           /* If current operation is READ_NDEF, then notify ndef handlers of
631            * failure */
632           nfa_dm_ndef_handle_message(NFA_STATUS_FAILED, nullptr, 0);
633         }
634       }
635 
636       /* Command complete - perform cleanup, notify the app */
637       nfa_rw_command_complete();
638       nfa_dm_act_conn_cback_notify(NFA_READ_CPLT_EVT, &conn_evt_data);
639 
640       /* Free ndef buffer */
641       nfa_rw_free_ndef_rx_buf();
642       break;
643 
644     case RW_T1T_NDEF_WRITE_EVT:
645       if (p_rw_data->data.status != NFA_STATUS_OK)
646         nfa_rw_cb.ndef_st = NFA_RW_NDEF_ST_UNKNOWN;
647       nfa_rw_cb.tlv_st = NFA_RW_TLV_DETECT_ST_COMPLETE;
648 
649       /* Command complete - perform cleanup, notify the app */
650       nfa_rw_command_complete();
651 
652       /* Notify app */
653       conn_evt_data.status = (p_rw_data->data.status == NFC_STATUS_OK)
654                                  ? NFA_STATUS_OK
655                                  : NFA_STATUS_FAILED;
656       if (nfa_rw_cb.cur_op == NFA_RW_OP_WRITE_NDEF) {
657         /* Update local cursize of ndef message */
658         nfa_rw_cb.ndef_cur_size = nfa_rw_cb.ndef_wr_len;
659       }
660 
661       /* Notify app of ndef write complete status */
662       nfa_dm_act_conn_cback_notify(NFA_WRITE_CPLT_EVT, &conn_evt_data);
663       break;
664 
665     case RW_T1T_SET_TAG_RO_EVT:
666       /* Command complete - perform cleanup, notify the app */
667       nfa_rw_command_complete();
668       nfa_dm_act_conn_cback_notify(NFA_SET_TAG_RO_EVT, &conn_evt_data);
669       break;
670 
671     case RW_T1T_RAW_FRAME_EVT:
672       nfa_rw_send_data_to_upper(p_rw_data);
673       /* Command complete - perform cleanup */
674       nfa_rw_command_complete();
675       break;
676 
677     case RW_T1T_PRESENCE_CHECK_EVT: /* Presence check completed */
678       nfa_rw_handle_presence_check_rsp(p_rw_data->status);
679       break;
680 
681     case RW_T1T_FORMAT_CPLT_EVT:
682 
683       if (p_rw_data->data.status == NFA_STATUS_OK)
684         nfa_rw_cb.ndef_st = NFA_RW_NDEF_ST_UNKNOWN;
685 
686       if (nfa_rw_cb.cur_op == NFA_RW_OP_WRITE_NDEF) {
687         /* if format operation was done as part of ndef-write operation, now
688          * start NDEF Write */
689         if ((p_rw_data->data.status != NFA_STATUS_OK) ||
690             ((conn_evt_data.status = RW_T1tDetectNDef()) != NFC_STATUS_OK)) {
691           /* Command complete - perform cleanup, notify app */
692           nfa_rw_command_complete();
693           nfa_rw_cb.ndef_st = NFA_RW_NDEF_ST_FALSE;
694 
695           /* if format operation failed or ndef detection did not start, then
696            * notify app of ndef-write operation failure */
697           conn_evt_data.status = NFA_STATUS_FAILED;
698           nfa_dm_act_conn_cback_notify(NFA_WRITE_CPLT_EVT, &conn_evt_data);
699         }
700       } else {
701         /* Command complete - perform cleanup, notify the app */
702         nfa_rw_command_complete();
703         nfa_dm_act_conn_cback_notify(NFA_FORMAT_CPLT_EVT, &conn_evt_data);
704       }
705       break;
706 
707     case RW_T1T_INTF_ERROR_EVT:
708       nfa_dm_act_conn_cback_notify(NFA_RW_INTF_ERROR_EVT, &conn_evt_data);
709       break;
710   }
711 }
712 
713 /*******************************************************************************
714 **
715 ** Function         nfa_rw_handle_t2t_evt
716 **
717 ** Description      Handler for Type-2 tag reader/writer events
718 **
719 ** Returns          Nothing
720 **
721 *******************************************************************************/
nfa_rw_handle_t2t_evt(tRW_EVENT event,tRW_DATA * p_rw_data)722 static void nfa_rw_handle_t2t_evt(tRW_EVENT event, tRW_DATA* p_rw_data) {
723   tNFA_CONN_EVT_DATA conn_evt_data;
724 
725   conn_evt_data.status = p_rw_data->status;
726 
727   if (p_rw_data->status == NFC_STATUS_REJECTED) {
728     DLOG_IF(INFO, nfc_debug_enabled) << StringPrintf(
729         "; Waking the tag first before handling the "
730         "response!");
731     /* Received NACK. Let DM wakeup the tag first (by putting tag to sleep and
732      * then waking it up) */
733     p_rw_data->status = nfa_dm_disc_sleep_wakeup();
734     if (p_rw_data->status == NFC_STATUS_OK) {
735       nfa_rw_cb.halt_event = event;
736       memcpy(&nfa_rw_cb.rw_data, p_rw_data, sizeof(tRW_DATA));
737       return;
738     }
739   }
740 
741   switch (event) {
742     case RW_T2T_READ_CPLT_EVT: /* Read completed          */
743       nfa_rw_send_data_to_upper(p_rw_data);
744       /* Command complete - perform cleanup, notify the app */
745       nfa_rw_command_complete();
746       nfa_dm_act_conn_cback_notify(NFA_READ_CPLT_EVT, &conn_evt_data);
747       break;
748 
749     case RW_T2T_WRITE_CPLT_EVT: /* Write completed         */
750       /* Command complete - perform cleanup, notify the app */
751       nfa_rw_command_complete();
752       nfa_dm_act_conn_cback_notify(NFA_WRITE_CPLT_EVT, &conn_evt_data);
753       break;
754 
755     case RW_T2T_SELECT_CPLT_EVT: /* Sector select completed */
756       /* Command complete - perform cleanup, notify the app */
757       nfa_rw_command_complete();
758       nfa_dm_act_conn_cback_notify(NFA_SELECT_CPLT_EVT, &conn_evt_data);
759       break;
760 
761     case RW_T2T_NDEF_DETECT_EVT: /* NDEF detection complete */
762       if ((p_rw_data->status == NFC_STATUS_OK) ||
763           ((p_rw_data->status == NFC_STATUS_FAILED) &&
764            ((p_rw_data->ndef.flags == NFA_RW_NDEF_FL_UNKNOWN) ||
765             (nfa_rw_cb.halt_event == RW_T2T_MAX_EVT))) ||
766           (nfa_rw_cb.skip_dyn_locks == true)) {
767         /* NDEF Detection is complete */
768         nfa_rw_cb.skip_dyn_locks = false;
769         nfa_rw_handle_ndef_detect(p_rw_data);
770       } else {
771         /* Try to detect NDEF again, this time without reading dynamic lock
772          * bytes */
773         nfa_rw_cb.skip_dyn_locks = true;
774         nfa_rw_detect_ndef();
775       }
776       break;
777 
778     case RW_T2T_TLV_DETECT_EVT: /* Lock control/Mem/Prop tlv detection complete
779                                    */
780       nfa_rw_handle_tlv_detect(p_rw_data);
781       break;
782 
783     case RW_T2T_NDEF_READ_EVT: /* NDEF read completed     */
784       if (p_rw_data->status == NFC_STATUS_OK) {
785         /* Process the ndef record */
786         nfa_dm_ndef_handle_message(NFA_STATUS_OK, nfa_rw_cb.p_ndef_buf,
787                                    nfa_rw_cb.ndef_cur_size);
788       } else {
789         /* Notify app of failure */
790         if (nfa_rw_cb.cur_op == NFA_RW_OP_READ_NDEF) {
791           /* If current operation is READ_NDEF, then notify ndef handlers of
792            * failure */
793           nfa_dm_ndef_handle_message(NFA_STATUS_FAILED, nullptr, 0);
794         }
795       }
796 
797       /* Notify app of read status */
798       conn_evt_data.status = p_rw_data->status;
799       nfa_dm_act_conn_cback_notify(NFA_READ_CPLT_EVT, &conn_evt_data);
800       /* Free ndef buffer */
801       nfa_rw_free_ndef_rx_buf();
802 
803       /* Command complete - perform cleanup */
804       nfa_rw_command_complete();
805       break;
806 
807     case RW_T2T_NDEF_WRITE_EVT: /* NDEF write complete     */
808 
809       /* Command complete - perform cleanup, notify the app */
810       nfa_rw_command_complete();
811 
812       /* Notify app */
813       conn_evt_data.status = (p_rw_data->data.status == NFC_STATUS_OK)
814                                  ? NFA_STATUS_OK
815                                  : NFA_STATUS_FAILED;
816       if (nfa_rw_cb.cur_op == NFA_RW_OP_WRITE_NDEF) {
817         /* Update local cursize of ndef message */
818         nfa_rw_cb.ndef_cur_size = nfa_rw_cb.ndef_wr_len;
819       }
820 
821       /* Notify app of ndef write complete status */
822       nfa_dm_act_conn_cback_notify(NFA_WRITE_CPLT_EVT, &conn_evt_data);
823 
824       break;
825 
826     case RW_T2T_SET_TAG_RO_EVT:
827       /* Command complete - perform cleanup, notify the app */
828       nfa_rw_command_complete();
829       nfa_dm_act_conn_cback_notify(NFA_SET_TAG_RO_EVT, &conn_evt_data);
830       break;
831 
832     case RW_T2T_RAW_FRAME_EVT:
833       nfa_rw_send_data_to_upper(p_rw_data);
834       /* Command complete - perform cleanup */
835       if (p_rw_data->status != NFC_STATUS_CONTINUE) {
836         nfa_rw_command_complete();
837       }
838       break;
839 
840     case RW_T2T_PRESENCE_CHECK_EVT: /* Presence check completed */
841       nfa_rw_handle_presence_check_rsp(p_rw_data->status);
842       break;
843 
844     case RW_T2T_FORMAT_CPLT_EVT:
845       if (p_rw_data->data.status == NFA_STATUS_OK)
846         nfa_rw_cb.ndef_st = NFA_RW_NDEF_ST_UNKNOWN;
847 
848       /* Command complete - perform cleanup, notify the app */
849       nfa_rw_command_complete();
850       nfa_dm_act_conn_cback_notify(NFA_FORMAT_CPLT_EVT, &conn_evt_data);
851       break;
852 
853     case RW_T2T_INTF_ERROR_EVT:
854       nfa_dm_act_conn_cback_notify(NFA_RW_INTF_ERROR_EVT, &conn_evt_data);
855       break;
856   }
857 }
858 
859 /*******************************************************************************
860 **
861 ** Function         nfa_rw_handle_t3t_evt
862 **
863 ** Description      Handler for Type-3 tag reader/writer events
864 **
865 ** Returns          Nothing
866 **
867 *******************************************************************************/
nfa_rw_handle_t3t_evt(tRW_EVENT event,tRW_DATA * p_rw_data)868 static void nfa_rw_handle_t3t_evt(tRW_EVENT event, tRW_DATA* p_rw_data) {
869   tNFA_CONN_EVT_DATA conn_evt_data;
870   tNFA_TAG_PARAMS tag_params;
871 
872   switch (event) {
873     case RW_T3T_NDEF_DETECT_EVT: /* NDEF detection complete */
874       nfa_rw_handle_ndef_detect(p_rw_data);
875       break;
876 
877     case RW_T3T_UPDATE_CPLT_EVT: /* Write completed */
878       /* Command complete - perform cleanup, notify the app */
879       nfa_rw_command_complete();
880 
881       /* Notify app */
882       conn_evt_data.status = (p_rw_data->data.status == NFC_STATUS_OK)
883                                  ? NFA_STATUS_OK
884                                  : NFA_STATUS_FAILED;
885       if (nfa_rw_cb.cur_op == NFA_RW_OP_WRITE_NDEF) {
886         /* Update local cursize of ndef message */
887         nfa_rw_cb.ndef_cur_size = nfa_rw_cb.ndef_wr_len;
888       }
889 
890       /* Notify app of ndef write complete status */
891       nfa_dm_act_conn_cback_notify(NFA_WRITE_CPLT_EVT, &conn_evt_data);
892 
893       break;
894 
895     case RW_T3T_CHECK_CPLT_EVT: /* Read completed */
896       if (p_rw_data->status == NFC_STATUS_OK) {
897         /* Process the ndef record */
898         nfa_dm_ndef_handle_message(NFA_STATUS_OK, nfa_rw_cb.p_ndef_buf,
899                                    nfa_rw_cb.ndef_cur_size);
900       } else {
901         /* Notify app of failure */
902         if (nfa_rw_cb.cur_op == NFA_RW_OP_READ_NDEF) {
903           /* If current operation is READ_NDEF, then notify ndef handlers of
904            * failure */
905           nfa_dm_ndef_handle_message(NFA_STATUS_FAILED, nullptr, 0);
906         }
907       }
908 
909       /* Free ndef buffer */
910       nfa_rw_free_ndef_rx_buf();
911 
912       /* Command complete - perform cleanup, notify the app */
913       nfa_rw_command_complete();
914       conn_evt_data.status = p_rw_data->status;
915       nfa_dm_act_conn_cback_notify(NFA_READ_CPLT_EVT, &conn_evt_data);
916       break;
917 
918     case RW_T3T_CHECK_EVT: /* Segment of data received from type 3 tag */
919       if (nfa_rw_cb.cur_op == NFA_RW_OP_READ_NDEF) {
920         nfa_rw_store_ndef_rx_buf(p_rw_data);
921       } else {
922         nfa_rw_send_data_to_upper(p_rw_data);
923       }
924       break;
925 
926     case RW_T3T_RAW_FRAME_EVT: /* SendRawFrame response */
927       nfa_rw_send_data_to_upper(p_rw_data);
928 
929       if (p_rw_data->status != NFC_STATUS_CONTINUE) {
930         /* Command complete - perform cleanup */
931         nfa_rw_command_complete();
932       }
933       break;
934 
935     case RW_T3T_PRESENCE_CHECK_EVT: /* Presence check completed */
936       nfa_rw_handle_presence_check_rsp(p_rw_data->status);
937       break;
938 
939     case RW_T3T_GET_SYSTEM_CODES_EVT: /* Presence check completed */
940       /* Command complete - perform cleanup */
941       nfa_rw_command_complete();
942 
943       /* System codes retrieved - notify app of ACTIVATION */
944       if (p_rw_data->status == NFC_STATUS_OK) {
945         tag_params.t3t.num_system_codes = p_rw_data->t3t_sc.num_system_codes;
946         tag_params.t3t.p_system_codes = p_rw_data->t3t_sc.p_system_codes;
947       } else {
948         tag_params.t3t.num_system_codes = 0;
949         tag_params.t3t.p_system_codes = nullptr;
950       }
951 
952       nfa_dm_notify_activation_status(NFA_STATUS_OK, &tag_params);
953       break;
954 
955     case RW_T3T_FORMAT_CPLT_EVT: /* Format completed */
956       /* Command complete - perform cleanup, notify the app */
957       nfa_rw_command_complete();
958 
959       /* Notify app */
960       conn_evt_data.status = (p_rw_data->data.status == NFC_STATUS_OK)
961                                  ? NFA_STATUS_OK
962                                  : NFA_STATUS_FAILED;
963 
964       /* Notify app of ndef write complete status */
965       nfa_dm_act_conn_cback_notify(NFA_FORMAT_CPLT_EVT, &conn_evt_data);
966       break;
967 
968     case RW_T3T_INTF_ERROR_EVT:
969       conn_evt_data.status = p_rw_data->status;
970       nfa_dm_act_conn_cback_notify(NFA_RW_INTF_ERROR_EVT, &conn_evt_data);
971       break;
972 
973     case RW_T3T_SET_READ_ONLY_CPLT_EVT:
974       /* Command complete - perform cleanup, notify the app */
975       nfa_rw_command_complete();
976 
977       conn_evt_data.status = p_rw_data->status;
978       nfa_dm_act_conn_cback_notify(NFA_SET_TAG_RO_EVT, &conn_evt_data);
979       break;
980 
981     default:
982       DLOG_IF(INFO, nfc_debug_enabled)
983           << StringPrintf("; Unhandled RW event 0x%X", event);
984       break;
985   }
986 }
987 
988 /*******************************************************************************
989 **
990 ** Function         nfa_rw_handle_t4t_evt
991 **
992 ** Description      Handler for Type-4 tag reader/writer events
993 **
994 ** Returns          Nothing
995 **
996 *******************************************************************************/
nfa_rw_handle_t4t_evt(tRW_EVENT event,tRW_DATA * p_rw_data)997 static void nfa_rw_handle_t4t_evt(tRW_EVENT event, tRW_DATA* p_rw_data) {
998   tNFA_CONN_EVT_DATA conn_evt_data;
999 
1000   switch (event) {
1001     case RW_T4T_NDEF_DETECT_EVT: /* Result of NDEF detection procedure */
1002       nfa_rw_handle_ndef_detect(p_rw_data);
1003       break;
1004 
1005     case RW_T4T_NDEF_FORMAT_CPLT_EVT:
1006       /* Command complete - perform cleanup, notify the app */
1007       nfa_rw_command_complete();
1008       nfa_rw_cb.cur_op = NFA_RW_OP_MAX;
1009       nfa_rw_cb.ndef_cur_size = p_rw_data->ndef.cur_size;
1010       nfa_rw_cb.ndef_max_size = p_rw_data->ndef.max_size;
1011       conn_evt_data.status = (p_rw_data->status == NFC_STATUS_OK)
1012                                  ? NFA_STATUS_OK
1013                                  : NFA_STATUS_FAILED;
1014 
1015       nfa_dm_act_conn_cback_notify(NFA_FORMAT_CPLT_EVT, &conn_evt_data);
1016       break;
1017 
1018     case RW_T4T_NDEF_READ_EVT: /* Segment of data received from type 4 tag */
1019       if (nfa_rw_cb.cur_op == NFA_RW_OP_READ_NDEF) {
1020         nfa_rw_store_ndef_rx_buf(p_rw_data);
1021       } else {
1022         nfa_rw_send_data_to_upper(p_rw_data);
1023       }
1024       break;
1025 
1026     case RW_T4T_NDEF_READ_CPLT_EVT: /* Read operation completed           */
1027       if (nfa_rw_cb.cur_op == NFA_RW_OP_READ_NDEF) {
1028         nfa_rw_store_ndef_rx_buf(p_rw_data);
1029 
1030         /* Process the ndef record */
1031         nfa_dm_ndef_handle_message(NFA_STATUS_OK, nfa_rw_cb.p_ndef_buf,
1032                                    nfa_rw_cb.ndef_cur_size);
1033 
1034         /* Free ndef buffer */
1035         nfa_rw_free_ndef_rx_buf();
1036       } else {
1037         nfa_rw_send_data_to_upper(p_rw_data);
1038       }
1039 
1040       /* Command complete - perform cleanup, notify the app */
1041       nfa_rw_command_complete();
1042       nfa_rw_cb.cur_op = NFA_RW_OP_MAX;
1043       conn_evt_data.status = NFC_STATUS_OK;
1044       nfa_dm_act_conn_cback_notify(NFA_READ_CPLT_EVT, &conn_evt_data);
1045       break;
1046 
1047     case RW_T4T_NDEF_READ_FAIL_EVT: /* Read operation failed              */
1048       if (nfa_rw_cb.cur_op == NFA_RW_OP_READ_NDEF) {
1049         /* If current operation is READ_NDEF, then notify ndef handlers of
1050          * failure */
1051         nfa_dm_ndef_handle_message(NFA_STATUS_FAILED, nullptr, 0);
1052 
1053         /* Free ndef buffer */
1054         nfa_rw_free_ndef_rx_buf();
1055       }
1056 
1057       /* Command complete - perform cleanup, notify the app */
1058       nfa_rw_command_complete();
1059       nfa_rw_cb.cur_op = NFA_RW_OP_MAX;
1060       conn_evt_data.status = NFA_STATUS_FAILED;
1061       nfa_dm_act_conn_cback_notify(NFA_READ_CPLT_EVT, &conn_evt_data);
1062       break;
1063 
1064     case RW_T4T_NDEF_UPDATE_CPLT_EVT: /* Update operation completed         */
1065     case RW_T4T_NDEF_UPDATE_FAIL_EVT: /* Update operation failed            */
1066 
1067       if (nfa_rw_cb.cur_op == NFA_RW_OP_WRITE_NDEF) {
1068         /* Update local cursize of ndef message */
1069         nfa_rw_cb.ndef_cur_size = nfa_rw_cb.ndef_wr_len;
1070       }
1071 
1072       /* Notify app */
1073       if (event == RW_T4T_NDEF_UPDATE_CPLT_EVT)
1074         conn_evt_data.status = NFA_STATUS_OK;
1075       else
1076         conn_evt_data.status = NFA_STATUS_FAILED;
1077 
1078       /* Command complete - perform cleanup, notify the app */
1079       nfa_rw_command_complete();
1080       nfa_rw_cb.cur_op = NFA_RW_OP_MAX;
1081       nfa_dm_act_conn_cback_notify(NFA_WRITE_CPLT_EVT, &conn_evt_data);
1082       break;
1083 
1084     case RW_T4T_RAW_FRAME_EVT: /* Raw Frame data event         */
1085       nfa_rw_send_data_to_upper(p_rw_data);
1086 
1087       if (p_rw_data->status != NFC_STATUS_CONTINUE) {
1088         /* Command complete - perform cleanup */
1089         nfa_rw_command_complete();
1090         nfa_rw_cb.cur_op = NFA_RW_OP_MAX;
1091       }
1092       break;
1093 
1094     case RW_T4T_SET_TO_RO_EVT: /* Tag is set as read only          */
1095       conn_evt_data.status = p_rw_data->status;
1096       nfa_dm_act_conn_cback_notify(NFA_SET_TAG_RO_EVT, &conn_evt_data);
1097 
1098       nfa_rw_command_complete();
1099       nfa_rw_cb.cur_op = NFA_RW_OP_MAX;
1100       break;
1101 
1102     case RW_T4T_INTF_ERROR_EVT: /* RF Interface error event         */
1103       conn_evt_data.status = p_rw_data->status;
1104       nfa_dm_act_conn_cback_notify(NFA_RW_INTF_ERROR_EVT, &conn_evt_data);
1105 
1106       nfa_rw_command_complete();
1107       nfa_rw_cb.cur_op = NFA_RW_OP_MAX;
1108       break;
1109 
1110     case RW_T4T_PRESENCE_CHECK_EVT: /* Presence check completed */
1111       nfa_rw_handle_presence_check_rsp(p_rw_data->status);
1112       break;
1113 
1114     default:
1115       DLOG_IF(INFO, nfc_debug_enabled)
1116           << StringPrintf("; Unhandled RW event 0x%X", event);
1117       break;
1118   }
1119 }
1120 
1121 /*******************************************************************************
1122 **
1123 ** Function         nfa_rw_handle_i93_evt
1124 **
1125 ** Description      Handler for ISO 15693 tag reader/writer events
1126 **
1127 ** Returns          Nothing
1128 **
1129 *******************************************************************************/
nfa_rw_handle_i93_evt(tRW_EVENT event,tRW_DATA * p_rw_data)1130 static void nfa_rw_handle_i93_evt(tRW_EVENT event, tRW_DATA* p_rw_data) {
1131   tNFA_CONN_EVT_DATA conn_evt_data;
1132   tNFA_TAG_PARAMS i93_params;
1133 
1134   switch (event) {
1135     case RW_I93_NDEF_DETECT_EVT: /* Result of NDEF detection procedure */
1136       nfa_rw_handle_ndef_detect(p_rw_data);
1137       break;
1138 
1139     case RW_I93_NDEF_READ_EVT: /* Segment of data received from type 4 tag */
1140       if (nfa_rw_cb.cur_op == NFA_RW_OP_READ_NDEF) {
1141         nfa_rw_store_ndef_rx_buf(p_rw_data);
1142       } else {
1143         nfa_rw_send_data_to_upper(p_rw_data);
1144       }
1145       break;
1146 
1147     case RW_I93_NDEF_READ_CPLT_EVT: /* Read operation completed           */
1148       if (nfa_rw_cb.cur_op == NFA_RW_OP_READ_NDEF) {
1149         nfa_rw_store_ndef_rx_buf(p_rw_data);
1150 
1151         /* Process the ndef record */
1152         nfa_dm_ndef_handle_message(NFA_STATUS_OK, nfa_rw_cb.p_ndef_buf,
1153                                    nfa_rw_cb.ndef_cur_size);
1154 
1155         /* Free ndef buffer */
1156         nfa_rw_free_ndef_rx_buf();
1157       } else {
1158         nfa_rw_send_data_to_upper(p_rw_data);
1159       }
1160 
1161       /* Command complete - perform cleanup, notify app */
1162       nfa_rw_command_complete();
1163       nfa_rw_cb.cur_op = NFA_RW_OP_MAX; /* clear current operation */
1164       conn_evt_data.status = NFC_STATUS_OK;
1165       nfa_dm_act_conn_cback_notify(NFA_READ_CPLT_EVT, &conn_evt_data);
1166       break;
1167 
1168     case RW_I93_NDEF_READ_FAIL_EVT: /* Read operation failed              */
1169       if (nfa_rw_cb.cur_op == NFA_RW_OP_READ_NDEF) {
1170         /* If current operation is READ_NDEF, then notify ndef handlers of
1171          * failure */
1172         nfa_dm_ndef_handle_message(NFA_STATUS_FAILED, nullptr, 0);
1173 
1174         /* Free ndef buffer */
1175         nfa_rw_free_ndef_rx_buf();
1176       }
1177 
1178       /* Command complete - perform cleanup, notify app */
1179       nfa_rw_command_complete();
1180       nfa_rw_cb.cur_op = NFA_RW_OP_MAX; /* clear current operation */
1181       conn_evt_data.status = NFA_STATUS_FAILED;
1182       nfa_dm_act_conn_cback_notify(NFA_READ_CPLT_EVT, &conn_evt_data);
1183       break;
1184 
1185     case RW_I93_NDEF_UPDATE_CPLT_EVT: /* Update operation completed         */
1186     case RW_I93_NDEF_UPDATE_FAIL_EVT: /* Update operation failed            */
1187 
1188       if (nfa_rw_cb.cur_op == NFA_RW_OP_WRITE_NDEF) {
1189         /* Update local cursize of ndef message */
1190         nfa_rw_cb.ndef_cur_size = nfa_rw_cb.ndef_wr_len;
1191       }
1192 
1193       /* Command complete - perform cleanup, notify app */
1194       nfa_rw_command_complete();
1195       nfa_rw_cb.cur_op = NFA_RW_OP_MAX; /* clear current operation */
1196 
1197       if (event == RW_I93_NDEF_UPDATE_CPLT_EVT)
1198         conn_evt_data.status = NFA_STATUS_OK;
1199       else
1200         conn_evt_data.status = NFA_STATUS_FAILED;
1201 
1202       /* Notify app of ndef write complete status */
1203       nfa_dm_act_conn_cback_notify(NFA_WRITE_CPLT_EVT, &conn_evt_data);
1204       break;
1205 
1206     case RW_I93_RAW_FRAME_EVT: /* Raw Frame data event         */
1207       nfa_rw_send_data_to_upper(p_rw_data);
1208       if (p_rw_data->status != NFC_STATUS_CONTINUE) {
1209         /* Command complete - perform cleanup */
1210         nfa_rw_command_complete();
1211       }
1212       break;
1213 
1214     case RW_I93_INTF_ERROR_EVT: /* RF Interface error event         */
1215       /* Command complete - perform cleanup, notify app */
1216       nfa_rw_command_complete();
1217 
1218       if (nfa_rw_cb.flags & NFA_RW_FL_ACTIVATION_NTF_PENDING) {
1219         nfa_rw_cb.flags &= ~NFA_RW_FL_ACTIVATION_NTF_PENDING;
1220 
1221         memset(&i93_params, 0x00, sizeof(tNFA_TAG_PARAMS));
1222         memcpy(i93_params.i93.uid, nfa_rw_cb.i93_uid, I93_UID_BYTE_LEN);
1223 
1224         nfa_dm_notify_activation_status(NFA_STATUS_OK, &i93_params);
1225       } else {
1226         conn_evt_data.status = p_rw_data->status;
1227         nfa_dm_act_conn_cback_notify(NFA_RW_INTF_ERROR_EVT, &conn_evt_data);
1228       }
1229 
1230       nfa_rw_cb.cur_op = NFA_RW_OP_MAX; /* clear current operation */
1231       break;
1232 
1233     case RW_I93_PRESENCE_CHECK_EVT: /* Presence check completed */
1234       nfa_rw_handle_presence_check_rsp(p_rw_data->status);
1235       break;
1236 
1237     case RW_I93_FORMAT_CPLT_EVT: /* Format procedure complete          */
1238       if (p_rw_data->data.status == NFA_STATUS_OK)
1239         nfa_rw_cb.ndef_st = NFA_RW_NDEF_ST_UNKNOWN;
1240 
1241       /* Command complete - perform cleanup, notify app */
1242       nfa_rw_command_complete();
1243       nfa_rw_cb.cur_op = NFA_RW_OP_MAX; /* clear current operation */
1244       conn_evt_data.status = p_rw_data->status;
1245       nfa_dm_act_conn_cback_notify(NFA_FORMAT_CPLT_EVT, &conn_evt_data);
1246       break;
1247 
1248     case RW_I93_SET_TAG_RO_EVT: /* Set read-only procedure complete   */
1249       nfa_rw_cb.flags |= NFA_RW_FL_TAG_IS_READONLY;
1250 
1251       /* Command complete - perform cleanup, notify app */
1252       nfa_rw_command_complete();
1253       nfa_rw_cb.cur_op = NFA_RW_OP_MAX; /* clear current operation */
1254       conn_evt_data.status = p_rw_data->status;
1255       nfa_dm_act_conn_cback_notify(NFA_SET_TAG_RO_EVT, &conn_evt_data);
1256       break;
1257 
1258     case RW_I93_INVENTORY_EVT: /* Response of Inventory              */
1259 
1260       /* Command complete - perform cleanup, notify app */
1261       nfa_rw_command_complete();
1262 
1263       conn_evt_data.i93_cmd_cplt.status = p_rw_data->i93_inventory.status;
1264       conn_evt_data.i93_cmd_cplt.sent_command = I93_CMD_INVENTORY;
1265 
1266       conn_evt_data.i93_cmd_cplt.params.inventory.dsfid =
1267           p_rw_data->i93_inventory.dsfid;
1268       memcpy(conn_evt_data.i93_cmd_cplt.params.inventory.uid,
1269              p_rw_data->i93_inventory.uid, I93_UID_BYTE_LEN);
1270 
1271       nfa_dm_act_conn_cback_notify(NFA_I93_CMD_CPLT_EVT, &conn_evt_data);
1272 
1273       nfa_rw_cb.cur_op = NFA_RW_OP_MAX; /* clear current operation */
1274       break;
1275 
1276     case RW_I93_DATA_EVT: /* Response of Read, Get Multi Security */
1277 
1278       /* Command complete - perform cleanup, notify app */
1279       nfa_rw_command_complete();
1280 
1281       conn_evt_data.data.p_data = (uint8_t*)(p_rw_data->i93_data.p_data + 1) +
1282                                   p_rw_data->i93_data.p_data->offset;
1283 
1284       if (nfa_rw_cb.flags & NFA_RW_FL_ACTIVATION_NTF_PENDING) {
1285         nfa_rw_cb.flags &= ~NFA_RW_FL_ACTIVATION_NTF_PENDING;
1286 
1287         i93_params.i93.info_flags =
1288             (I93_INFO_FLAG_DSFID | I93_INFO_FLAG_MEM_SIZE | I93_INFO_FLAG_AFI);
1289         i93_params.i93.afi =
1290             *(conn_evt_data.data.p_data +
1291               nfa_rw_cb.i93_afi_location % nfa_rw_cb.i93_block_size);
1292         i93_params.i93.dsfid = nfa_rw_cb.i93_dsfid;
1293         i93_params.i93.block_size = nfa_rw_cb.i93_block_size;
1294         i93_params.i93.num_block = nfa_rw_cb.i93_num_block;
1295         memcpy(i93_params.i93.uid, nfa_rw_cb.i93_uid, I93_UID_BYTE_LEN);
1296 
1297         nfa_dm_notify_activation_status(NFA_STATUS_OK, &i93_params);
1298       } else {
1299         conn_evt_data.data.len = p_rw_data->i93_data.p_data->len;
1300 
1301         nfa_dm_act_conn_cback_notify(NFA_DATA_EVT, &conn_evt_data);
1302       }
1303 
1304       GKI_freebuf(p_rw_data->i93_data.p_data);
1305       p_rw_data->i93_data.p_data = nullptr;
1306 
1307       nfa_rw_cb.cur_op = NFA_RW_OP_MAX; /* clear current operation */
1308       break;
1309 
1310     case RW_I93_SYS_INFO_EVT: /* Response of System Information     */
1311 
1312       /* Command complete - perform cleanup, notify app */
1313       nfa_rw_command_complete();
1314 
1315       if (nfa_rw_cb.flags & NFA_RW_FL_ACTIVATION_NTF_PENDING) {
1316         nfa_rw_cb.flags &= ~NFA_RW_FL_ACTIVATION_NTF_PENDING;
1317 
1318         nfa_rw_cb.i93_block_size = p_rw_data->i93_sys_info.block_size;
1319         nfa_rw_cb.i93_num_block = p_rw_data->i93_sys_info.num_block;
1320 
1321         i93_params.i93.info_flags = p_rw_data->i93_sys_info.info_flags;
1322         i93_params.i93.dsfid = p_rw_data->i93_sys_info.dsfid;
1323         i93_params.i93.afi = p_rw_data->i93_sys_info.afi;
1324         i93_params.i93.num_block = p_rw_data->i93_sys_info.num_block;
1325         i93_params.i93.block_size = p_rw_data->i93_sys_info.block_size;
1326         i93_params.i93.IC_reference = p_rw_data->i93_sys_info.IC_reference;
1327         memcpy(i93_params.i93.uid, p_rw_data->i93_sys_info.uid,
1328                I93_UID_BYTE_LEN);
1329 
1330         nfa_dm_notify_activation_status(NFA_STATUS_OK, &i93_params);
1331       } else {
1332         conn_evt_data.i93_cmd_cplt.status = p_rw_data->i93_sys_info.status;
1333         conn_evt_data.i93_cmd_cplt.sent_command = I93_CMD_GET_SYS_INFO;
1334 
1335         conn_evt_data.i93_cmd_cplt.params.sys_info.info_flags =
1336             p_rw_data->i93_sys_info.info_flags;
1337         memcpy(conn_evt_data.i93_cmd_cplt.params.sys_info.uid,
1338                p_rw_data->i93_sys_info.uid, I93_UID_BYTE_LEN);
1339         conn_evt_data.i93_cmd_cplt.params.sys_info.dsfid =
1340             p_rw_data->i93_sys_info.dsfid;
1341         conn_evt_data.i93_cmd_cplt.params.sys_info.afi =
1342             p_rw_data->i93_sys_info.afi;
1343         conn_evt_data.i93_cmd_cplt.params.sys_info.num_block =
1344             p_rw_data->i93_sys_info.num_block;
1345         conn_evt_data.i93_cmd_cplt.params.sys_info.block_size =
1346             p_rw_data->i93_sys_info.block_size;
1347         conn_evt_data.i93_cmd_cplt.params.sys_info.IC_reference =
1348             p_rw_data->i93_sys_info.IC_reference;
1349 
1350         /* store tag memory information for writing blocks */
1351         nfa_rw_cb.i93_block_size = p_rw_data->i93_sys_info.block_size;
1352         nfa_rw_cb.i93_num_block = p_rw_data->i93_sys_info.num_block;
1353 
1354         nfa_dm_act_conn_cback_notify(NFA_I93_CMD_CPLT_EVT, &conn_evt_data);
1355       }
1356 
1357       nfa_rw_cb.cur_op = NFA_RW_OP_MAX; /* clear current operation */
1358       break;
1359 
1360     case RW_I93_CMD_CMPL_EVT: /* Command complete                   */
1361       /* Command complete - perform cleanup, notify app */
1362       nfa_rw_command_complete();
1363 
1364       if (nfa_rw_cb.flags & NFA_RW_FL_ACTIVATION_NTF_PENDING) {
1365         /* Reader got error code from tag */
1366 
1367         nfa_rw_cb.flags &= ~NFA_RW_FL_ACTIVATION_NTF_PENDING;
1368 
1369         memset(&i93_params, 0x00, sizeof(i93_params));
1370         memcpy(i93_params.i93.uid, nfa_rw_cb.i93_uid, I93_UID_BYTE_LEN);
1371 
1372         nfa_dm_notify_activation_status(NFA_STATUS_OK, &i93_params);
1373       } else {
1374         conn_evt_data.i93_cmd_cplt.status = p_rw_data->i93_cmd_cmpl.status;
1375         conn_evt_data.i93_cmd_cplt.sent_command =
1376             p_rw_data->i93_cmd_cmpl.command;
1377 
1378         if (conn_evt_data.i93_cmd_cplt.status != NFC_STATUS_OK)
1379           conn_evt_data.i93_cmd_cplt.params.error_code =
1380               p_rw_data->i93_cmd_cmpl.error_code;
1381 
1382         nfa_dm_act_conn_cback_notify(NFA_I93_CMD_CPLT_EVT, &conn_evt_data);
1383       }
1384 
1385       nfa_rw_cb.cur_op = NFA_RW_OP_MAX; /* clear current operation */
1386       break;
1387 
1388     default:
1389       DLOG_IF(INFO, nfc_debug_enabled)
1390           << StringPrintf("; Unhandled RW event 0x%X", event);
1391       break;
1392   }
1393 }
1394 
1395 /*******************************************************************************
1396 **
1397 ** Function         nfa_rw_handle_mfc_evt
1398 **
1399 ** Description      Handler for Mifare Classic tag reader/writer events
1400 **
1401 ** Returns          Nothing
1402 **
1403 *******************************************************************************/
nfa_rw_handle_mfc_evt(tRW_EVENT event,tRW_DATA * p_rw_data)1404 static void nfa_rw_handle_mfc_evt(tRW_EVENT event, tRW_DATA* p_rw_data) {
1405   tNFA_CONN_EVT_DATA conn_evt_data;
1406 
1407   conn_evt_data.status = p_rw_data->status;
1408   DLOG_IF(INFO, nfc_debug_enabled)
1409       << StringPrintf("nfa_rw_handle_mfc_evt() event = 0x%X", event);
1410 
1411   switch (event) {
1412     /* Read completed */
1413     case RW_MFC_NDEF_READ_CPLT_EVT:
1414       nfa_rw_send_data_to_upper(p_rw_data);
1415       /* Command complete - perform cleanup, notify the app */
1416       nfa_rw_command_complete();
1417       nfa_dm_act_conn_cback_notify(NFA_READ_CPLT_EVT, &conn_evt_data);
1418       break;
1419 
1420     /* NDEF detection complete */
1421     case RW_MFC_NDEF_DETECT_EVT:
1422       nfa_rw_handle_ndef_detect(p_rw_data);
1423       break;
1424 
1425     /* NDEF read completed */
1426     case RW_MFC_NDEF_READ_EVT:
1427       if (p_rw_data->status == NFC_STATUS_OK) {
1428         /* Process the ndef record */
1429         nfa_dm_ndef_handle_message(NFA_STATUS_OK, nfa_rw_cb.p_ndef_buf,
1430                                    nfa_rw_cb.ndef_cur_size);
1431       } else {
1432         /* Notify app of failure */
1433         if (nfa_rw_cb.cur_op == NFA_RW_OP_READ_NDEF) {
1434           /* If current operation is READ_NDEF, then notify ndef handlers of
1435            * failure */
1436           nfa_dm_ndef_handle_message(NFA_STATUS_FAILED, NULL, 0);
1437         }
1438       }
1439 
1440       /* Notify app of read status */
1441       conn_evt_data.status = p_rw_data->status;
1442       nfa_dm_act_conn_cback_notify(NFA_READ_CPLT_EVT, &conn_evt_data);
1443       /* Free ndef buffer */
1444       nfa_rw_free_ndef_rx_buf();
1445 
1446       /* Command complete - perform cleanup */
1447       nfa_rw_command_complete();
1448       break;
1449 
1450     /* Raw Frame data event */
1451     case RW_MFC_RAW_FRAME_EVT:
1452       nfa_rw_send_data_to_upper(p_rw_data);
1453 
1454       if (p_rw_data->status != NFC_STATUS_CONTINUE) {
1455         /* Command complete - perform cleanup */
1456         nfa_rw_command_complete();
1457         nfa_rw_cb.cur_op = NFA_RW_OP_MAX;
1458       }
1459       break;
1460 
1461     /* RF Interface error event */
1462     case RW_MFC_INTF_ERROR_EVT:
1463       nfa_dm_act_conn_cback_notify(NFA_RW_INTF_ERROR_EVT, &conn_evt_data);
1464       break;
1465 
1466     case RW_MFC_NDEF_FORMAT_CPLT_EVT:
1467       /* Command complete - perform cleanup, notify the app */
1468       nfa_rw_command_complete();
1469       nfa_dm_act_conn_cback_notify(NFA_FORMAT_CPLT_EVT, &conn_evt_data);
1470       break;
1471 
1472     /* NDEF write completed or failed*/
1473     case RW_MFC_NDEF_WRITE_CPLT_EVT:
1474     case RW_MFC_NDEF_WRITE_FAIL_EVT:
1475       /* Command complete - perform cleanup, notify the app */
1476       nfa_rw_command_complete();
1477       nfa_dm_act_conn_cback_notify(NFA_WRITE_CPLT_EVT, &conn_evt_data);
1478       break;
1479 
1480     default:
1481       DLOG_IF(INFO, nfc_debug_enabled)
1482           << StringPrintf("; Unhandled RW event 0x%X", event);
1483   }
1484 }
1485 
1486 /*******************************************************************************
1487 **
1488 ** Function         nfa_rw_cback
1489 **
1490 ** Description      Callback for reader/writer event notification
1491 **
1492 ** Returns          Nothing
1493 **
1494 *******************************************************************************/
nfa_rw_cback(tRW_EVENT event,tRW_DATA * p_rw_data)1495 static void nfa_rw_cback(tRW_EVENT event, tRW_DATA* p_rw_data) {
1496   DLOG_IF(INFO, nfc_debug_enabled)
1497       << StringPrintf("nfa_rw_cback: event=0x%02x", event);
1498 
1499   /* Call appropriate event handler for tag type */
1500   if (event < RW_T1T_MAX_EVT) {
1501     /* Handle Type-1 tag events */
1502     nfa_rw_handle_t1t_evt(event, p_rw_data);
1503   } else if (event < RW_T2T_MAX_EVT) {
1504     /* Handle Type-2 tag events */
1505     nfa_rw_handle_t2t_evt(event, p_rw_data);
1506   } else if (event < RW_T3T_MAX_EVT) {
1507     /* Handle Type-3 tag events */
1508     nfa_rw_handle_t3t_evt(event, p_rw_data);
1509   } else if (event < RW_T4T_MAX_EVT) {
1510     /* Handle Type-4 tag events */
1511     nfa_rw_handle_t4t_evt(event, p_rw_data);
1512   } else if (event < RW_I93_MAX_EVT) {
1513     /* Handle ISO 15693 tag events */
1514     nfa_rw_handle_i93_evt(event, p_rw_data);
1515   } else if (event < RW_MFC_MAX_EVT) {
1516     /* Handle Mifare Classic tag events */
1517     nfa_rw_handle_mfc_evt(event, p_rw_data);
1518   } else {
1519     LOG(ERROR) << StringPrintf("nfa_rw_cback: unhandled event=0x%02x", event);
1520   }
1521 }
1522 
1523 /*******************************************************************************
1524 **
1525 ** Function         nfa_rw_start_ndef_detection
1526 **
1527 ** Description      Start NDEF detection on activated tag
1528 **
1529 ** Returns          Nothing
1530 **
1531 *******************************************************************************/
nfa_rw_start_ndef_detection(void)1532 static tNFC_STATUS nfa_rw_start_ndef_detection(void) {
1533   tNFC_PROTOCOL protocol = nfa_rw_cb.protocol;
1534   tNFC_STATUS status = NFC_STATUS_FAILED;
1535 
1536   if (NFC_PROTOCOL_T1T == protocol) {
1537     /* Type1Tag    - NFC-A */
1538     status = RW_T1tDetectNDef();
1539   } else if (NFC_PROTOCOL_T2T == protocol) {
1540     /* Type2Tag    - NFC-A */
1541     if (nfa_rw_cb.pa_sel_res == NFC_SEL_RES_NFC_FORUM_T2T) {
1542       status = RW_T2tDetectNDef(nfa_rw_cb.skip_dyn_locks);
1543     }
1544   } else if (NFC_PROTOCOL_T3T == protocol) {
1545     /* Type3Tag    - NFC-F */
1546     status = RW_T3tDetectNDef();
1547   } else if (NFC_PROTOCOL_ISO_DEP == protocol) {
1548     /* ISODEP/4A,4B- NFC-A or NFC-B */
1549     status = RW_T4tDetectNDef();
1550   } else if (NFC_PROTOCOL_T5T == protocol) {
1551     /* ISO 15693 */
1552     status = RW_I93DetectNDef();
1553   } else if (NFC_PROTOCOL_MIFARE == protocol) {
1554     status = RW_MfcDetectNDef();
1555   }
1556 
1557   return (status);
1558 }
1559 
1560 /*******************************************************************************
1561 **
1562 ** Function         nfa_rw_start_ndef_read
1563 **
1564 ** Description      Start NDEF read on activated tag
1565 **
1566 ** Returns          Nothing
1567 **
1568 *******************************************************************************/
nfa_rw_start_ndef_read(void)1569 static tNFC_STATUS nfa_rw_start_ndef_read(void) {
1570   tNFC_PROTOCOL protocol = nfa_rw_cb.protocol;
1571   tNFC_STATUS status = NFC_STATUS_FAILED;
1572   tNFA_CONN_EVT_DATA conn_evt_data;
1573 
1574   /* Handle zero length NDEF message */
1575   if (nfa_rw_cb.ndef_cur_size == 0) {
1576     DLOG_IF(INFO, nfc_debug_enabled)
1577         << StringPrintf("NDEF message is zero-length");
1578 
1579     /* Send zero-lengh NDEF message to ndef callback */
1580     nfa_dm_ndef_handle_message(NFA_STATUS_OK, nullptr, 0);
1581 
1582     /* Command complete - perform cleanup, notify app */
1583     nfa_rw_command_complete();
1584     conn_evt_data.status = NFA_STATUS_OK;
1585     nfa_dm_act_conn_cback_notify(NFA_READ_CPLT_EVT, &conn_evt_data);
1586     return NFC_STATUS_OK;
1587   }
1588 
1589   /* Allocate buffer for incoming NDEF message (free previous NDEF rx buffer, if
1590    * needed) */
1591   nfa_rw_free_ndef_rx_buf();
1592   nfa_rw_cb.p_ndef_buf = (uint8_t*)nfa_mem_co_alloc(nfa_rw_cb.ndef_cur_size);
1593   if (nfa_rw_cb.p_ndef_buf == nullptr) {
1594     LOG(ERROR) << StringPrintf(
1595         "Unable to allocate a buffer for reading NDEF (size=%i)",
1596         nfa_rw_cb.ndef_cur_size);
1597 
1598     /* Command complete - perform cleanup, notify app */
1599     nfa_rw_command_complete();
1600     conn_evt_data.status = NFA_STATUS_FAILED;
1601     nfa_dm_act_conn_cback_notify(NFA_READ_CPLT_EVT, &conn_evt_data);
1602     return NFC_STATUS_FAILED;
1603   }
1604   nfa_rw_cb.ndef_rd_offset = 0;
1605 
1606   if (NFC_PROTOCOL_T1T == protocol) {
1607     /* Type1Tag    - NFC-A */
1608     status =
1609         RW_T1tReadNDef(nfa_rw_cb.p_ndef_buf, (uint16_t)nfa_rw_cb.ndef_cur_size);
1610   } else if (NFC_PROTOCOL_T2T == protocol) {
1611     /* Type2Tag    - NFC-A */
1612     if (nfa_rw_cb.pa_sel_res == NFC_SEL_RES_NFC_FORUM_T2T) {
1613       status = RW_T2tReadNDef(nfa_rw_cb.p_ndef_buf,
1614                               (uint16_t)nfa_rw_cb.ndef_cur_size);
1615     }
1616   } else if (NFC_PROTOCOL_T3T == protocol) {
1617     /* Type3Tag    - NFC-F */
1618     status = RW_T3tCheckNDef();
1619   } else if (NFC_PROTOCOL_ISO_DEP == protocol) {
1620     /* ISODEP/4A,4B- NFC-A or NFC-B */
1621     status = RW_T4tReadNDef();
1622   } else if (NFC_PROTOCOL_T5T == protocol) {
1623     /* ISO 15693 */
1624     status = RW_I93ReadNDef();
1625   } else if (NFC_PROTOCOL_MIFARE == protocol) {
1626     /* Mifare Classic*/
1627     status =
1628         RW_MfcReadNDef(nfa_rw_cb.p_ndef_buf, (uint16_t)nfa_rw_cb.ndef_cur_size);
1629   }
1630 
1631   return (status);
1632 }
1633 
1634 /*******************************************************************************
1635 **
1636 ** Function         nfa_rw_detect_ndef
1637 **
1638 ** Description      Handler for NFA_RW_API_DETECT_NDEF_EVT
1639 **
1640 ** Returns          TRUE (message buffer to be freed by caller)
1641 **
1642 *******************************************************************************/
nfa_rw_detect_ndef()1643 static bool nfa_rw_detect_ndef() {
1644   tNFA_CONN_EVT_DATA conn_evt_data;
1645   DLOG_IF(INFO, nfc_debug_enabled) << __func__;
1646 
1647   conn_evt_data.ndef_detect.status = nfa_rw_start_ndef_detection();
1648   if (conn_evt_data.ndef_detect.status != NFC_STATUS_OK) {
1649     /* Command complete - perform cleanup, notify app */
1650     nfa_rw_command_complete();
1651     conn_evt_data.ndef_detect.cur_size = 0;
1652     conn_evt_data.ndef_detect.max_size = 0;
1653     conn_evt_data.ndef_detect.flags = RW_NDEF_FL_UNKNOWN;
1654     nfa_dm_act_conn_cback_notify(NFA_NDEF_DETECT_EVT, &conn_evt_data);
1655   }
1656 
1657   return true;
1658 }
1659 
1660 /*******************************************************************************
1661 **
1662 ** Function         nfa_rw_start_ndef_write
1663 **
1664 ** Description      Start NDEF write on activated tag
1665 **
1666 ** Returns          Nothing
1667 **
1668 *******************************************************************************/
nfa_rw_start_ndef_write(void)1669 static tNFC_STATUS nfa_rw_start_ndef_write(void) {
1670   tNFC_PROTOCOL protocol = nfa_rw_cb.protocol;
1671   tNFC_STATUS status = NFC_STATUS_FAILED;
1672 
1673   if (nfa_rw_cb.flags & NFA_RW_FL_TAG_IS_READONLY) {
1674     /* error: ndef tag is read-only */
1675     status = NFC_STATUS_FAILED;
1676     LOG(ERROR) << StringPrintf("Unable to write NDEF. Tag is read-only");
1677   } else if (nfa_rw_cb.ndef_max_size < nfa_rw_cb.ndef_wr_len) {
1678     /* error: ndef tag size is too small */
1679     status = NFC_STATUS_BUFFER_FULL;
1680     LOG(ERROR) << StringPrintf(
1681         "Unable to write NDEF. Tag maxsize=%i, request write size=%i",
1682         nfa_rw_cb.ndef_max_size, nfa_rw_cb.ndef_wr_len);
1683   } else {
1684     if (NFC_PROTOCOL_T1T == protocol) {
1685       /* Type1Tag    - NFC-A */
1686       status = RW_T1tWriteNDef((uint16_t)nfa_rw_cb.ndef_wr_len,
1687                                nfa_rw_cb.p_ndef_wr_buf);
1688     } else if (NFC_PROTOCOL_T2T == protocol) {
1689       /* Type2Tag    - NFC-A */
1690       if (nfa_rw_cb.pa_sel_res == NFC_SEL_RES_NFC_FORUM_T2T) {
1691         status = RW_T2tWriteNDef((uint16_t)nfa_rw_cb.ndef_wr_len,
1692                                  nfa_rw_cb.p_ndef_wr_buf);
1693       }
1694     } else if (NFC_PROTOCOL_T3T == protocol) {
1695       /* Type3Tag    - NFC-F */
1696       status = RW_T3tUpdateNDef(nfa_rw_cb.ndef_wr_len, nfa_rw_cb.p_ndef_wr_buf);
1697     } else if (NFC_PROTOCOL_ISO_DEP == protocol) {
1698       /* ISODEP/4A,4B- NFC-A or NFC-B */
1699       status = RW_T4tUpdateNDef((uint16_t)nfa_rw_cb.ndef_wr_len,
1700                                 nfa_rw_cb.p_ndef_wr_buf);
1701     } else if (NFC_PROTOCOL_T5T == protocol) {
1702       /* ISO 15693 */
1703       status = RW_I93UpdateNDef((uint16_t)nfa_rw_cb.ndef_wr_len,
1704                                 nfa_rw_cb.p_ndef_wr_buf);
1705     } else if (NFC_PROTOCOL_MIFARE == protocol) {
1706       /* Mifare Tag */
1707       status = RW_MfcWriteNDef((uint16_t)nfa_rw_cb.ndef_wr_len,
1708                                nfa_rw_cb.p_ndef_wr_buf);
1709     }
1710   }
1711 
1712   return (status);
1713 }
1714 
1715 /*******************************************************************************
1716 **
1717 ** Function         nfa_rw_read_ndef
1718 **
1719 ** Description      Handler for NFA_RW_API_READ_NDEF_EVT
1720 **
1721 ** Returns          TRUE (message buffer to be freed by caller)
1722 **
1723 *******************************************************************************/
nfa_rw_read_ndef()1724 static bool nfa_rw_read_ndef() {
1725   tNFA_STATUS status = NFA_STATUS_OK;
1726   tNFA_CONN_EVT_DATA conn_evt_data;
1727 
1728   DLOG_IF(INFO, nfc_debug_enabled) << __func__;
1729 
1730   /* Check if ndef detection has been performed yet */
1731   if (nfa_rw_cb.ndef_st == NFA_RW_NDEF_ST_UNKNOWN) {
1732     /* Perform ndef detection first */
1733     status = nfa_rw_start_ndef_detection();
1734   } else if (nfa_rw_cb.ndef_st == NFA_RW_NDEF_ST_FALSE) {
1735     /* Tag is not NDEF */
1736     status = NFA_STATUS_FAILED;
1737   } else {
1738     /* Perform the NDEF read operation */
1739     status = nfa_rw_start_ndef_read();
1740   }
1741 
1742   /* Handle failure */
1743   if (status != NFA_STATUS_OK) {
1744     /* Command complete - perform cleanup, notify app */
1745     nfa_rw_command_complete();
1746     conn_evt_data.status = status;
1747     nfa_dm_act_conn_cback_notify(NFA_READ_CPLT_EVT, &conn_evt_data);
1748   }
1749 
1750   return true;
1751 }
1752 
1753 /*******************************************************************************
1754 **
1755 ** Function         nfa_rw_write_ndef
1756 **
1757 ** Description      Handler for NFA_RW_API_WRITE_NDEF_EVT
1758 **
1759 ** Returns          TRUE (message buffer to be freed by caller)
1760 **
1761 *******************************************************************************/
nfa_rw_write_ndef(tNFA_RW_MSG * p_data)1762 static bool nfa_rw_write_ndef(tNFA_RW_MSG* p_data) {
1763   tNDEF_STATUS ndef_status;
1764   tNFA_STATUS write_status = NFA_STATUS_OK;
1765   tNFA_CONN_EVT_DATA conn_evt_data;
1766   DLOG_IF(INFO, nfc_debug_enabled) << __func__;
1767 
1768   /* Validate NDEF message */
1769   ndef_status = NDEF_MsgValidate(p_data->op_req.params.write_ndef.p_data,
1770                                  p_data->op_req.params.write_ndef.len, false);
1771   if (ndef_status != NDEF_OK) {
1772     LOG(ERROR) << StringPrintf(
1773         "Invalid NDEF message. NDEF_MsgValidate returned %i", ndef_status);
1774 
1775     /* Command complete - perform cleanup, notify app */
1776     nfa_rw_command_complete();
1777     conn_evt_data.status = NFA_STATUS_FAILED;
1778     nfa_dm_act_conn_cback_notify(NFA_WRITE_CPLT_EVT, &conn_evt_data);
1779     return true;
1780   }
1781 
1782   /* Store pointer to source NDEF */
1783   nfa_rw_cb.p_ndef_wr_buf = p_data->op_req.params.write_ndef.p_data;
1784   nfa_rw_cb.ndef_wr_len = p_data->op_req.params.write_ndef.len;
1785 
1786   /* Check if ndef detection has been performed yet */
1787   if (nfa_rw_cb.ndef_st == NFA_RW_NDEF_ST_UNKNOWN) {
1788     /* Perform ndef detection first */
1789     write_status = nfa_rw_start_ndef_detection();
1790   } else if (nfa_rw_cb.ndef_st == NFA_RW_NDEF_ST_FALSE) {
1791     if (nfa_rw_cb.protocol == NFC_PROTOCOL_T1T) {
1792       /* For Type 1 tag, NDEF can be written on Initialized tag
1793       *  Perform ndef detection first to check if tag is in Initialized state to
1794       * Write NDEF */
1795       write_status = nfa_rw_start_ndef_detection();
1796     } else {
1797       /* Tag is not NDEF */
1798       write_status = NFA_STATUS_FAILED;
1799     }
1800   } else {
1801     /* Perform the NDEF read operation */
1802     write_status = nfa_rw_start_ndef_write();
1803   }
1804 
1805   /* Handle failure */
1806   if (write_status != NFA_STATUS_OK) {
1807     /* Command complete - perform cleanup, notify app */
1808     nfa_rw_command_complete();
1809     conn_evt_data.status = write_status;
1810     nfa_dm_act_conn_cback_notify(NFA_WRITE_CPLT_EVT, &conn_evt_data);
1811   }
1812 
1813   return true;
1814 }
1815 
1816 /*******************************************************************************
1817 **
1818 ** Function         nfa_rw_presence_check
1819 **
1820 ** Description      Handler for NFA_RW_API_PRESENCE_CHECK
1821 **
1822 ** Returns          Nothing
1823 **
1824 *******************************************************************************/
nfa_rw_presence_check(tNFA_RW_MSG * p_data)1825 void nfa_rw_presence_check(tNFA_RW_MSG* p_data) {
1826   tNFC_PROTOCOL protocol = nfa_rw_cb.protocol;
1827   uint8_t sel_res = nfa_rw_cb.pa_sel_res;
1828   tNFC_STATUS status = NFC_STATUS_FAILED;
1829   bool unsupported = false;
1830   uint8_t option = NFA_RW_OPTION_INVALID;
1831   tNFA_RW_PRES_CHK_OPTION op_param = NFA_RW_PRES_CHK_DEFAULT;
1832 
1833   if (NFC_PROTOCOL_T1T == protocol) {
1834     /* Type1Tag    - NFC-A */
1835     status = RW_T1tPresenceCheck();
1836   } else if (NFC_PROTOCOL_T2T == protocol) {
1837     /* If T2T NFC-Forum, then let RW handle presence check */
1838     if (sel_res == NFC_SEL_RES_NFC_FORUM_T2T) {
1839       /* Type 2 tag have not sent NACK after activation */
1840       status = RW_T2tPresenceCheck();
1841     } else {
1842       /* Will fall back to deactivate/reactivate */
1843       unsupported = true;
1844     }
1845   } else if (NFC_PROTOCOL_T3T == protocol) {
1846     /* Type3Tag    - NFC-F */
1847     status = RW_T3tPresenceCheck();
1848   } else if (NFC_PROTOCOL_ISO_DEP == protocol) {
1849     /* ISODEP/4A,4B- NFC-A or NFC-B */
1850     if (p_data) {
1851       op_param = p_data->op_req.params.option;
1852     }
1853 
1854     switch (op_param) {
1855       case NFA_RW_PRES_CHK_I_BLOCK:
1856         option = RW_T4T_CHK_EMPTY_I_BLOCK;
1857         break;
1858 
1859       case NFA_RW_PRES_CHK_ISO_DEP_NAK:
1860         if (NFC_GetNCIVersion() == NCI_VERSION_2_0) {
1861           option = RW_T4T_CHK_ISO_DEP_NAK_PRES_CHK;
1862         }
1863         break;
1864       default:
1865         /* empty I block */
1866         option = RW_T4T_CHK_EMPTY_I_BLOCK;
1867     }
1868 
1869     if (option != NFA_RW_OPTION_INVALID) {
1870       /* use the presence check with the chosen option */
1871       status = RW_T4tPresenceCheck(option);
1872     } else {
1873       /* use sleep/wake for presence check */
1874       unsupported = true;
1875     }
1876   } else if (NFC_PROTOCOL_T5T == protocol) {
1877     /* T5T/ISO 15693 */
1878     status = RW_I93PresenceCheck();
1879   } else {
1880     /* Protocol unsupported by RW module... */
1881     unsupported = true;
1882   }
1883 
1884   if (unsupported) {
1885     if (nfa_rw_cb.activated_tech_mode == NFC_DISCOVERY_TYPE_POLL_KOVIO) {
1886       /* start Kovio presence check (deactivate and wait for activation) */
1887       status = nfa_dm_disc_start_kovio_presence_check();
1888     } else {
1889       /* Let DM perform presence check (by putting tag to sleep and then waking
1890        * it up) */
1891       status = nfa_dm_disc_sleep_wakeup();
1892     }
1893   }
1894 
1895   /* Handle presence check failure */
1896   if (status != NFC_STATUS_OK)
1897     nfa_rw_handle_presence_check_rsp(NFC_STATUS_FAILED);
1898   else if (!unsupported) {
1899     nfa_sys_start_timer(&nfa_rw_cb.tle, NFA_RW_PRESENCE_CHECK_TIMEOUT_EVT,
1900                         p_nfa_dm_cfg->presence_check_timeout);
1901   }
1902 }
1903 
1904 /*******************************************************************************
1905 **
1906 ** Function         nfa_rw_presence_check_tick
1907 **
1908 ** Description      Called on expiration of NFA_RW_PRESENCE_CHECK_INTERVAL
1909 **                  Initiate presence check
1910 **
1911 ** Returns          TRUE (caller frees message buffer)
1912 **
1913 *******************************************************************************/
nfa_rw_presence_check_tick(tNFA_RW_MSG * p_data)1914 bool nfa_rw_presence_check_tick(__attribute__((unused)) tNFA_RW_MSG* p_data) {
1915   /* Store the current operation */
1916   nfa_rw_cb.cur_op = NFA_RW_OP_PRESENCE_CHECK;
1917   nfa_rw_cb.flags |= NFA_RW_FL_AUTO_PRESENCE_CHECK_BUSY;
1918   DLOG_IF(INFO, nfc_debug_enabled)
1919       << StringPrintf("Auto-presence check starting...");
1920 
1921   /* Perform presence check */
1922   nfa_rw_presence_check(nullptr);
1923 
1924   return true;
1925 }
1926 
1927 /*******************************************************************************
1928 **
1929 ** Function         nfa_rw_presence_check_timeout
1930 **
1931 ** Description      presence check timeout: report presence check failure
1932 **
1933 ** Returns          TRUE (caller frees message buffer)
1934 **
1935 *******************************************************************************/
nfa_rw_presence_check_timeout(tNFA_RW_MSG * p_data)1936 bool nfa_rw_presence_check_timeout(__attribute__((unused))
1937                                    tNFA_RW_MSG* p_data) {
1938   nfa_rw_handle_presence_check_rsp(NFC_STATUS_FAILED);
1939   return true;
1940 }
1941 
1942 /*******************************************************************************
1943 **
1944 ** Function         nfa_rw_format_tag
1945 **
1946 ** Description      Handler for NFA_RW_API_FORMAT_TAG
1947 **
1948 ** Returns          Nothing
1949 **
1950 *******************************************************************************/
nfa_rw_format_tag()1951 static void nfa_rw_format_tag() {
1952   tNFC_PROTOCOL protocol = nfa_rw_cb.protocol;
1953   tNFC_STATUS status = NFC_STATUS_FAILED;
1954 
1955   if (protocol == NFC_PROTOCOL_T1T) {
1956     status = RW_T1tFormatNDef();
1957   } else if ((protocol == NFC_PROTOCOL_T2T) &&
1958              (nfa_rw_cb.pa_sel_res == NFC_SEL_RES_NFC_FORUM_T2T)) {
1959     status = RW_T2tFormatNDef();
1960   } else if (protocol == NFC_PROTOCOL_T3T) {
1961     status = RW_T3tFormatNDef();
1962   } else if (protocol == NFC_PROTOCOL_T5T) {
1963     status = RW_I93FormatNDef();
1964   } else if (protocol == NFC_PROTOCOL_ISO_DEP) {
1965     status = RW_T4tFormatNDef();
1966   } else if (protocol == NFC_PROTOCOL_MIFARE) {
1967     status = RW_MfcFormatNDef();
1968   }
1969 
1970   /* If unable to format NDEF, notify the app */
1971   if (status != NFC_STATUS_OK) nfa_rw_error_cleanup(NFA_FORMAT_CPLT_EVT);
1972 }
1973 
1974 /*******************************************************************************
1975 **
1976 ** Function         nfa_rw_detect_tlv
1977 **
1978 ** Description      Handler for NFA_RW_API_DETECT_NDEF_EVT
1979 **
1980 ** Returns          TRUE (message buffer to be freed by caller)
1981 **
1982 *******************************************************************************/
nfa_rw_detect_tlv(uint8_t tlv)1983 static bool nfa_rw_detect_tlv(uint8_t tlv) {
1984   DLOG_IF(INFO, nfc_debug_enabled) << __func__;
1985 
1986   switch (nfa_rw_cb.protocol) {
1987     case NFC_PROTOCOL_T1T:
1988       if (RW_T1tLocateTlv(tlv) != NFC_STATUS_OK)
1989         nfa_rw_error_cleanup(NFA_TLV_DETECT_EVT);
1990       break;
1991 
1992     case NFC_PROTOCOL_T2T:
1993       if (nfa_rw_cb.pa_sel_res == NFC_SEL_RES_NFC_FORUM_T2T) {
1994         if (RW_T2tLocateTlv(tlv) != NFC_STATUS_OK)
1995           nfa_rw_error_cleanup(NFA_TLV_DETECT_EVT);
1996       }
1997       break;
1998 
1999     default:
2000       break;
2001   }
2002 
2003   return true;
2004 }
2005 
2006 /*******************************************************************************
2007 **
2008 ** Function         nfa_rw_config_tag_ro
2009 **
2010 ** Description      Handler for NFA_RW_OP_SET_TAG_RO
2011 **
2012 ** Returns          TRUE (message buffer to be freed by caller)
2013 **
2014 *******************************************************************************/
nfa_rw_config_tag_ro(bool b_hard_lock)2015 static tNFC_STATUS nfa_rw_config_tag_ro(bool b_hard_lock) {
2016   tNFC_PROTOCOL protocol = nfa_rw_cb.protocol;
2017   tNFC_STATUS status = NFC_STATUS_FAILED;
2018 
2019   DLOG_IF(INFO, nfc_debug_enabled) << __func__;
2020 
2021   if (NFC_PROTOCOL_T1T == protocol) {
2022     /* Type1Tag    - NFC-A */
2023     if ((nfa_rw_cb.tlv_st == NFA_RW_TLV_DETECT_ST_OP_NOT_STARTED) ||
2024         (nfa_rw_cb.tlv_st == NFA_RW_TLV_DETECT_ST_MEM_TLV_OP_COMPLETE)) {
2025       status = RW_T1tLocateTlv(TAG_LOCK_CTRL_TLV);
2026       return (status);
2027     } else {
2028       status = RW_T1tSetTagReadOnly(b_hard_lock);
2029     }
2030   } else if (NFC_PROTOCOL_T2T == protocol) {
2031     /* Type2Tag    - NFC-A */
2032     if (nfa_rw_cb.pa_sel_res == NFC_SEL_RES_NFC_FORUM_T2T) {
2033       status = RW_T2tSetTagReadOnly(b_hard_lock);
2034     }
2035   } else if (NFC_PROTOCOL_T3T == protocol) {
2036     /* Type3Tag    - NFC-F */
2037     status = RW_T3tSetReadOnly(b_hard_lock);
2038   } else if (NFC_PROTOCOL_ISO_DEP == protocol) {
2039     /* ISODEP/4A,4B- NFC-A or NFC-B */
2040     status = RW_T4tSetNDefReadOnly();
2041   } else if (NFC_PROTOCOL_T5T == protocol) {
2042     /* ISO 15693 */
2043     status = RW_I93SetTagReadOnly();
2044   }
2045 
2046   if (status == NFC_STATUS_OK) {
2047     nfa_rw_cb.ndef_st = NFA_RW_NDEF_ST_UNKNOWN;
2048   } else {
2049     nfa_rw_error_cleanup(NFA_SET_TAG_RO_EVT);
2050   }
2051 
2052   return (status);
2053 }
2054 
2055 /*******************************************************************************
2056 **
2057 ** Function         nfa_rw_t1t_rid
2058 **
2059 ** Description      Handler for T1T_RID API
2060 **
2061 ** Returns          TRUE (message buffer to be freed by caller)
2062 **
2063 *******************************************************************************/
nfa_rw_t1t_rid()2064 static bool nfa_rw_t1t_rid() {
2065   if (RW_T1tRid() != NFC_STATUS_OK) nfa_rw_error_cleanup(NFA_READ_CPLT_EVT);
2066 
2067   return true;
2068 }
2069 
2070 /*******************************************************************************
2071 **
2072 ** Function         nfa_rw_t1t_rall
2073 **
2074 ** Description      Handler for T1T_ReadAll API
2075 **
2076 ** Returns          TRUE (message buffer to be freed by caller)
2077 **
2078 *******************************************************************************/
nfa_rw_t1t_rall()2079 static bool nfa_rw_t1t_rall() {
2080   if (RW_T1tReadAll() != NFC_STATUS_OK) nfa_rw_error_cleanup(NFA_READ_CPLT_EVT);
2081 
2082   return true;
2083 }
2084 
2085 /*******************************************************************************
2086 **
2087 ** Function         nfa_rw_t1t_read
2088 **
2089 ** Description      Handler for T1T_Read API
2090 **
2091 ** Returns          TRUE (message buffer to be freed by caller)
2092 **
2093 *******************************************************************************/
nfa_rw_t1t_read(tNFA_RW_MSG * p_data)2094 static bool nfa_rw_t1t_read(tNFA_RW_MSG* p_data) {
2095   tNFA_RW_OP_PARAMS_T1T_READ* p_t1t_read =
2096       (tNFA_RW_OP_PARAMS_T1T_READ*)&(p_data->op_req.params.t1t_read);
2097 
2098   if (RW_T1tRead(p_t1t_read->block_number, p_t1t_read->index) != NFC_STATUS_OK)
2099     nfa_rw_error_cleanup(NFA_READ_CPLT_EVT);
2100 
2101   return true;
2102 }
2103 
2104 /*******************************************************************************
2105 **
2106 ** Function         nfa_rw_t1t_write
2107 **
2108 ** Description      Handler for T1T_WriteErase/T1T_WriteNoErase API
2109 **
2110 ** Returns          TRUE (message buffer to be freed by caller)
2111 **
2112 *******************************************************************************/
nfa_rw_t1t_write(tNFA_RW_MSG * p_data)2113 static bool nfa_rw_t1t_write(tNFA_RW_MSG* p_data) {
2114   tNFA_RW_OP_PARAMS_T1T_WRITE* p_t1t_write =
2115       (tNFA_RW_OP_PARAMS_T1T_WRITE*)&(p_data->op_req.params.t1t_write);
2116   tNFC_STATUS status;
2117 
2118   if (p_t1t_write->b_erase) {
2119     status = RW_T1tWriteErase(p_t1t_write->block_number, p_t1t_write->index,
2120                               p_t1t_write->p_block_data[0]);
2121   } else {
2122     status = RW_T1tWriteNoErase(p_t1t_write->block_number, p_t1t_write->index,
2123                                 p_t1t_write->p_block_data[0]);
2124   }
2125 
2126   if (status != NFC_STATUS_OK) {
2127     nfa_rw_error_cleanup(NFA_WRITE_CPLT_EVT);
2128   } else {
2129     if (p_t1t_write->block_number == 0x01)
2130       nfa_rw_cb.ndef_st = NFA_RW_NDEF_ST_UNKNOWN;
2131   }
2132 
2133   return true;
2134 }
2135 
2136 /*******************************************************************************
2137 **
2138 ** Function         nfa_rw_t1t_rseg
2139 **
2140 ** Description      Handler for T1t_ReadSeg API
2141 **
2142 ** Returns          TRUE (message buffer to be freed by caller)
2143 **
2144 *******************************************************************************/
nfa_rw_t1t_rseg(tNFA_RW_MSG * p_data)2145 static bool nfa_rw_t1t_rseg(tNFA_RW_MSG* p_data) {
2146   tNFA_RW_OP_PARAMS_T1T_READ* p_t1t_read =
2147       (tNFA_RW_OP_PARAMS_T1T_READ*)&(p_data->op_req.params.t1t_read);
2148 
2149   if (RW_T1tReadSeg(p_t1t_read->segment_number) != NFC_STATUS_OK)
2150     nfa_rw_error_cleanup(NFA_READ_CPLT_EVT);
2151 
2152   return true;
2153 }
2154 
2155 /*******************************************************************************
2156 **
2157 ** Function         nfa_rw_t1t_read8
2158 **
2159 ** Description      Handler for T1T_Read8 API
2160 **
2161 ** Returns          TRUE (message buffer to be freed by caller)
2162 **
2163 *******************************************************************************/
nfa_rw_t1t_read8(tNFA_RW_MSG * p_data)2164 static bool nfa_rw_t1t_read8(tNFA_RW_MSG* p_data) {
2165   tNFA_RW_OP_PARAMS_T1T_READ* p_t1t_read =
2166       (tNFA_RW_OP_PARAMS_T1T_READ*)&(p_data->op_req.params.t1t_read);
2167 
2168   if (RW_T1tRead8(p_t1t_read->block_number) != NFC_STATUS_OK)
2169     nfa_rw_error_cleanup(NFA_READ_CPLT_EVT);
2170 
2171   return true;
2172 }
2173 
2174 /*******************************************************************************
2175 **
2176 ** Function         nfa_rw_t1t_write8
2177 **
2178 ** Description      Handler for T1T_WriteErase8/T1T_WriteNoErase8 API
2179 **
2180 ** Returns          TRUE (message buffer to be freed by caller)
2181 **
2182 *******************************************************************************/
nfa_rw_t1t_write8(tNFA_RW_MSG * p_data)2183 static bool nfa_rw_t1t_write8(tNFA_RW_MSG* p_data) {
2184   tNFA_RW_OP_PARAMS_T1T_WRITE* p_t1t_write =
2185       (tNFA_RW_OP_PARAMS_T1T_WRITE*)&(p_data->op_req.params.t1t_write);
2186   tNFC_STATUS status;
2187 
2188   if (p_t1t_write->b_erase) {
2189     status =
2190         RW_T1tWriteErase8(p_t1t_write->block_number, p_t1t_write->p_block_data);
2191   } else {
2192     status = RW_T1tWriteNoErase8(p_t1t_write->block_number,
2193                                  p_t1t_write->p_block_data);
2194   }
2195 
2196   if (status != NFC_STATUS_OK) {
2197     nfa_rw_error_cleanup(NFA_WRITE_CPLT_EVT);
2198   } else {
2199     if (p_t1t_write->block_number == 0x01)
2200       nfa_rw_cb.ndef_st = NFA_RW_NDEF_ST_UNKNOWN;
2201   }
2202 
2203   return true;
2204 }
2205 
2206 /*******************************************************************************
2207 **
2208 ** Function         nfa_rw_t2t_read
2209 **
2210 ** Description      Handler for T2T_Read API
2211 **
2212 ** Returns          TRUE (message buffer to be freed by caller)
2213 **
2214 *******************************************************************************/
nfa_rw_t2t_read(tNFA_RW_MSG * p_data)2215 static bool nfa_rw_t2t_read(tNFA_RW_MSG* p_data) {
2216   tNFA_RW_OP_PARAMS_T2T_READ* p_t2t_read =
2217       (tNFA_RW_OP_PARAMS_T2T_READ*)&(p_data->op_req.params.t2t_read);
2218   tNFC_STATUS status = NFC_STATUS_FAILED;
2219 
2220   if (nfa_rw_cb.pa_sel_res == NFC_SEL_RES_NFC_FORUM_T2T)
2221     status = RW_T2tRead(p_t2t_read->block_number);
2222 
2223   if (status != NFC_STATUS_OK) nfa_rw_error_cleanup(NFA_READ_CPLT_EVT);
2224 
2225   return true;
2226 }
2227 
2228 /*******************************************************************************
2229 **
2230 ** Function         nfa_rw_t2t_write
2231 **
2232 ** Description      Handler for T2T_Write API
2233 **
2234 ** Returns          TRUE (message buffer to be freed by caller)
2235 **
2236 *******************************************************************************/
nfa_rw_t2t_write(tNFA_RW_MSG * p_data)2237 static bool nfa_rw_t2t_write(tNFA_RW_MSG* p_data) {
2238   tNFA_RW_OP_PARAMS_T2T_WRITE* p_t2t_write =
2239       (tNFA_RW_OP_PARAMS_T2T_WRITE*)&(p_data->op_req.params.t2t_write);
2240 
2241   if (RW_T2tWrite(p_t2t_write->block_number, p_t2t_write->p_block_data) !=
2242       NFC_STATUS_OK) {
2243     nfa_rw_error_cleanup(NFA_WRITE_CPLT_EVT);
2244   } else {
2245     if (p_t2t_write->block_number == 0x03)
2246       nfa_rw_cb.ndef_st = NFA_RW_NDEF_ST_UNKNOWN;
2247   }
2248 
2249   return true;
2250 }
2251 
2252 /*******************************************************************************
2253 **
2254 ** Function         nfa_rw_t2t_sector_select
2255 **
2256 ** Description      Handler for T2T_Sector_Select API
2257 **
2258 ** Returns          TRUE (message buffer to be freed by caller)
2259 **
2260 *******************************************************************************/
nfa_rw_t2t_sector_select(tNFA_RW_MSG * p_data)2261 static bool nfa_rw_t2t_sector_select(tNFA_RW_MSG* p_data) {
2262   tNFA_RW_OP_PARAMS_T2T_SECTOR_SELECT* p_t2t_sector_select =
2263       (tNFA_RW_OP_PARAMS_T2T_SECTOR_SELECT*)&(
2264           p_data->op_req.params.t2t_sector_select);
2265 
2266   if (RW_T2tSectorSelect(p_t2t_sector_select->sector_number) != NFC_STATUS_OK)
2267     nfa_rw_error_cleanup(NFA_SELECT_CPLT_EVT);
2268 
2269   return true;
2270 }
2271 
2272 /*******************************************************************************
2273 **
2274 ** Function         nfa_rw_t3t_read
2275 **
2276 ** Description      Handler for T3T_Read API
2277 **
2278 ** Returns          TRUE (message buffer to be freed by caller)
2279 **
2280 *******************************************************************************/
nfa_rw_t3t_read(tNFA_RW_MSG * p_data)2281 static bool nfa_rw_t3t_read(tNFA_RW_MSG* p_data) {
2282   tNFA_RW_OP_PARAMS_T3T_READ* p_t3t_read =
2283       (tNFA_RW_OP_PARAMS_T3T_READ*)&(p_data->op_req.params.t3t_read);
2284 
2285   if (RW_T3tCheck(p_t3t_read->num_blocks,
2286                   (tT3T_BLOCK_DESC*)p_t3t_read->p_block_desc) != NFC_STATUS_OK)
2287     nfa_rw_error_cleanup(NFA_READ_CPLT_EVT);
2288 
2289   return true;
2290 }
2291 
2292 /*******************************************************************************
2293 **
2294 ** Function         nfa_rw_t3t_write
2295 **
2296 ** Description      Handler for T3T_Write API
2297 **
2298 ** Returns          TRUE (message buffer to be freed by caller)
2299 **
2300 *******************************************************************************/
nfa_rw_t3t_write(tNFA_RW_MSG * p_data)2301 static bool nfa_rw_t3t_write(tNFA_RW_MSG* p_data) {
2302   tNFA_RW_OP_PARAMS_T3T_WRITE* p_t3t_write =
2303       (tNFA_RW_OP_PARAMS_T3T_WRITE*)&(p_data->op_req.params.t3t_write);
2304 
2305   if (RW_T3tUpdate(p_t3t_write->num_blocks,
2306                    (tT3T_BLOCK_DESC*)p_t3t_write->p_block_desc,
2307                    p_t3t_write->p_block_data) != NFC_STATUS_OK)
2308     nfa_rw_error_cleanup(NFA_WRITE_CPLT_EVT);
2309 
2310   return true;
2311 }
2312 
2313 /*******************************************************************************
2314 **
2315 ** Function         nfa_rw_t3t_get_system_codes
2316 **
2317 ** Description      Get system codes (initiated by NFA after activation)
2318 **
2319 ** Returns          TRUE (message buffer to be freed by caller)
2320 **
2321 *******************************************************************************/
nfa_rw_t3t_get_system_codes()2322 static bool nfa_rw_t3t_get_system_codes() {
2323   tNFC_STATUS status;
2324   tNFA_TAG_PARAMS tag_params;
2325 
2326   status = RW_T3tGetSystemCodes();
2327 
2328   if (status != NFC_STATUS_OK) {
2329     /* Command complete - perform cleanup, notify app */
2330     nfa_rw_command_complete();
2331     tag_params.t3t.num_system_codes = 0;
2332     tag_params.t3t.p_system_codes = nullptr;
2333 
2334     nfa_dm_notify_activation_status(NFA_STATUS_OK, &tag_params);
2335   }
2336 
2337   return true;
2338 }
2339 
2340 /*******************************************************************************
2341 **
2342 ** Function         nfa_rw_i93_command
2343 **
2344 ** Description      Handler for ISO 15693 command
2345 **
2346 ** Returns          TRUE (message buffer to be freed by caller)
2347 **
2348 *******************************************************************************/
nfa_rw_i93_command(tNFA_RW_MSG * p_data)2349 static bool nfa_rw_i93_command(tNFA_RW_MSG* p_data) {
2350   tNFA_CONN_EVT_DATA conn_evt_data;
2351   tNFC_STATUS status = NFC_STATUS_OK;
2352   uint8_t i93_command = I93_CMD_STAY_QUIET;
2353 
2354   switch (p_data->op_req.op) {
2355     case NFA_RW_OP_I93_INVENTORY:
2356       i93_command = I93_CMD_INVENTORY;
2357       if (p_data->op_req.params.i93_cmd.uid_present) {
2358         status = RW_I93Inventory(p_data->op_req.params.i93_cmd.afi_present,
2359                                  p_data->op_req.params.i93_cmd.afi,
2360                                  p_data->op_req.params.i93_cmd.uid);
2361       } else {
2362         status = RW_I93Inventory(p_data->op_req.params.i93_cmd.afi_present,
2363                                  p_data->op_req.params.i93_cmd.afi, nullptr);
2364       }
2365       break;
2366 
2367     case NFA_RW_OP_I93_STAY_QUIET:
2368       i93_command = I93_CMD_STAY_QUIET;
2369       status = RW_I93StayQuiet();
2370       break;
2371 
2372     case NFA_RW_OP_I93_READ_SINGLE_BLOCK:
2373       i93_command = I93_CMD_READ_SINGLE_BLOCK;
2374       status = RW_I93ReadSingleBlock(
2375           p_data->op_req.params.i93_cmd.first_block_number);
2376       break;
2377 
2378     case NFA_RW_OP_I93_WRITE_SINGLE_BLOCK:
2379       i93_command = I93_CMD_WRITE_SINGLE_BLOCK;
2380       status = RW_I93WriteSingleBlock(
2381           p_data->op_req.params.i93_cmd.first_block_number,
2382           p_data->op_req.params.i93_cmd.p_data);
2383       break;
2384 
2385     case NFA_RW_OP_I93_LOCK_BLOCK:
2386       i93_command = I93_CMD_LOCK_BLOCK;
2387       status = RW_I93LockBlock(
2388           (uint8_t)p_data->op_req.params.i93_cmd.first_block_number);
2389       break;
2390 
2391     case NFA_RW_OP_I93_READ_MULTI_BLOCK:
2392       i93_command = I93_CMD_READ_MULTI_BLOCK;
2393       status = RW_I93ReadMultipleBlocks(
2394           p_data->op_req.params.i93_cmd.first_block_number,
2395           p_data->op_req.params.i93_cmd.number_blocks);
2396       break;
2397 
2398     case NFA_RW_OP_I93_WRITE_MULTI_BLOCK:
2399       i93_command = I93_CMD_WRITE_MULTI_BLOCK;
2400       status = RW_I93WriteMultipleBlocks(
2401           (uint8_t)p_data->op_req.params.i93_cmd.first_block_number,
2402           p_data->op_req.params.i93_cmd.number_blocks,
2403           p_data->op_req.params.i93_cmd.p_data);
2404       break;
2405 
2406     case NFA_RW_OP_I93_SELECT:
2407       i93_command = I93_CMD_SELECT;
2408       status = RW_I93Select(p_data->op_req.params.i93_cmd.p_data);
2409       break;
2410 
2411     case NFA_RW_OP_I93_RESET_TO_READY:
2412       i93_command = I93_CMD_RESET_TO_READY;
2413       status = RW_I93ResetToReady();
2414       break;
2415 
2416     case NFA_RW_OP_I93_WRITE_AFI:
2417       i93_command = I93_CMD_WRITE_AFI;
2418       status = RW_I93WriteAFI(p_data->op_req.params.i93_cmd.afi);
2419       break;
2420 
2421     case NFA_RW_OP_I93_LOCK_AFI:
2422       i93_command = I93_CMD_LOCK_AFI;
2423       status = RW_I93LockAFI();
2424       break;
2425 
2426     case NFA_RW_OP_I93_WRITE_DSFID:
2427       i93_command = I93_CMD_WRITE_DSFID;
2428       status = RW_I93WriteDSFID(p_data->op_req.params.i93_cmd.dsfid);
2429       break;
2430 
2431     case NFA_RW_OP_I93_LOCK_DSFID:
2432       i93_command = I93_CMD_LOCK_DSFID;
2433       status = RW_I93LockDSFID();
2434       break;
2435 
2436     case NFA_RW_OP_I93_GET_SYS_INFO:
2437       i93_command = I93_CMD_GET_SYS_INFO;
2438       if (p_data->op_req.params.i93_cmd.uid_present) {
2439         status = RW_I93GetSysInfo(p_data->op_req.params.i93_cmd.uid);
2440       } else {
2441         status = RW_I93GetSysInfo(nullptr);
2442       }
2443       break;
2444 
2445     case NFA_RW_OP_I93_GET_MULTI_BLOCK_STATUS:
2446       i93_command = I93_CMD_GET_MULTI_BLK_SEC;
2447       status = RW_I93GetMultiBlockSecurityStatus(
2448           p_data->op_req.params.i93_cmd.first_block_number,
2449           p_data->op_req.params.i93_cmd.number_blocks);
2450       break;
2451 
2452     default:
2453       break;
2454   }
2455 
2456   if (status != NFC_STATUS_OK) {
2457     /* Command complete - perform cleanup, notify app */
2458     nfa_rw_command_complete();
2459 
2460     conn_evt_data.i93_cmd_cplt.status = NFA_STATUS_FAILED;
2461     conn_evt_data.i93_cmd_cplt.sent_command = i93_command;
2462 
2463     nfa_dm_act_conn_cback_notify(NFA_I93_CMD_CPLT_EVT, &conn_evt_data);
2464   }
2465 
2466   return true;
2467 }
2468 
2469 /*******************************************************************************
2470 **
2471 ** Function         nfa_rw_raw_mode_data_cback
2472 **
2473 ** Description      Handler for incoming tag data for unsupported tag protocols
2474 **                  (forward data to upper layer)
2475 **
2476 ** Returns          nothing
2477 **
2478 *******************************************************************************/
nfa_rw_raw_mode_data_cback(uint8_t conn_id,tNFC_CONN_EVT event,tNFC_CONN * p_data)2479 static void nfa_rw_raw_mode_data_cback(__attribute__((unused)) uint8_t conn_id,
2480                                        tNFC_CONN_EVT event, tNFC_CONN* p_data) {
2481   NFC_HDR* p_msg;
2482   tNFA_CONN_EVT_DATA evt_data;
2483 
2484   DLOG_IF(INFO, nfc_debug_enabled) << StringPrintf("event = 0x%X", event);
2485 
2486   if ((event == NFC_DATA_CEVT) &&
2487       ((p_data->data.status == NFC_STATUS_OK) ||
2488        (p_data->data.status == NFC_STATUS_CONTINUE))) {
2489     p_msg = (NFC_HDR*)p_data->data.p_data;
2490 
2491     if (p_msg) {
2492       evt_data.data.status = p_data->data.status;
2493       evt_data.data.p_data = (uint8_t*)(p_msg + 1) + p_msg->offset;
2494       evt_data.data.len = p_msg->len;
2495 
2496       nfa_dm_conn_cback_event_notify(NFA_DATA_EVT, &evt_data);
2497 
2498       GKI_freebuf(p_msg);
2499     } else {
2500       LOG(ERROR) << StringPrintf(
2501           "received NFC_DATA_CEVT with NULL data pointer");
2502     }
2503   } else if (event == NFC_DEACTIVATE_CEVT) {
2504     NFC_SetStaticRfCback(nullptr);
2505   }
2506 }
2507 
2508 /*******************************************************************************
2509 **
2510 ** Function         nfa_rw_activate_ntf
2511 **
2512 ** Description      Handler for NFA_RW_ACTIVATE_NTF
2513 **
2514 ** Returns          TRUE (message buffer to be freed by caller)
2515 **
2516 *******************************************************************************/
nfa_rw_activate_ntf(tNFA_RW_MSG * p_data)2517 bool nfa_rw_activate_ntf(tNFA_RW_MSG* p_data) {
2518   tNFC_ACTIVATE_DEVT* p_activate_params =
2519       p_data->activate_ntf.p_activate_params;
2520   tNFA_TAG_PARAMS tag_params;
2521   bool activate_notify = true;
2522   uint8_t* p;
2523 
2524   if ((nfa_rw_cb.halt_event != RW_T2T_MAX_EVT) &&
2525       (nfa_rw_cb.activated_tech_mode == NFC_DISCOVERY_TYPE_POLL_A) &&
2526       (nfa_rw_cb.protocol == NFC_PROTOCOL_T2T) &&
2527       (nfa_rw_cb.pa_sel_res == NFC_SEL_RES_NFC_FORUM_T2T)) {
2528     /* Type 2 tag is wake up from HALT State */
2529     if (nfa_dm_cb.p_activate_ntf != nullptr) {
2530       GKI_freebuf(nfa_dm_cb.p_activate_ntf);
2531       nfa_dm_cb.p_activate_ntf = nullptr;
2532     }
2533     DLOG_IF(INFO, nfc_debug_enabled)
2534         << StringPrintf("- Type 2 tag wake up from HALT State");
2535     return true;
2536   }
2537 
2538   DLOG_IF(INFO, nfc_debug_enabled) << __func__;
2539 
2540   /* Initialize control block */
2541   nfa_rw_cb.protocol = p_activate_params->protocol;
2542   nfa_rw_cb.intf_type = p_activate_params->intf_param.type;
2543   nfa_rw_cb.pa_sel_res = p_activate_params->rf_tech_param.param.pa.sel_rsp;
2544   nfa_rw_cb.activated_tech_mode = p_activate_params->rf_tech_param.mode;
2545   nfa_rw_cb.flags = NFA_RW_FL_ACTIVATED;
2546   nfa_rw_cb.cur_op = NFA_RW_OP_MAX;
2547   nfa_rw_cb.halt_event = RW_T2T_MAX_EVT;
2548   nfa_rw_cb.skip_dyn_locks = false;
2549   nfa_rw_cb.ndef_st = NFA_RW_NDEF_ST_UNKNOWN;
2550   nfa_rw_cb.tlv_st = NFA_RW_TLV_DETECT_ST_OP_NOT_STARTED;
2551 
2552   memset(&tag_params, 0, sizeof(tNFA_TAG_PARAMS));
2553 
2554   /* Check if we are in exclusive RF mode */
2555   if (p_data->activate_ntf.excl_rf_not_active) {
2556     /* Not in exclusive RF mode */
2557     nfa_rw_cb.flags |= NFA_RW_FL_NOT_EXCL_RF_MODE;
2558   }
2559 
2560   /* check if the protocol is activated with supported interface */
2561   if (p_activate_params->intf_param.type == NCI_INTERFACE_FRAME) {
2562     if ((p_activate_params->protocol != NFA_PROTOCOL_T1T) &&
2563         (p_activate_params->protocol != NFA_PROTOCOL_T2T) &&
2564         (p_activate_params->protocol != NFA_PROTOCOL_T3T) &&
2565         (p_activate_params->protocol != NFA_PROTOCOL_T5T)) {
2566       nfa_rw_cb.protocol = NFA_PROTOCOL_INVALID;
2567     }
2568   } else if (p_activate_params->intf_param.type == NCI_INTERFACE_ISO_DEP) {
2569     if (p_activate_params->protocol != NFA_PROTOCOL_ISO_DEP) {
2570       nfa_rw_cb.protocol = NFA_PROTOCOL_INVALID;
2571     }
2572   }
2573 
2574   if (nfa_rw_cb.protocol == NFA_PROTOCOL_INVALID) {
2575     /* Only sending raw frame and presence check are supported in this state */
2576 
2577     NFC_SetStaticRfCback(nfa_rw_raw_mode_data_cback);
2578 
2579     /* Notify app of NFA_ACTIVATED_EVT and start presence check timer */
2580     nfa_dm_notify_activation_status(NFA_STATUS_OK, nullptr);
2581     nfa_rw_check_start_presence_check_timer(NFA_RW_PRESENCE_CHECK_INTERVAL);
2582     return true;
2583   }
2584 
2585   /* If protocol not supported by RW module, notify app of NFA_ACTIVATED_EVT and
2586    * start presence check if needed */
2587   if (!nfa_dm_is_protocol_supported(
2588           p_activate_params->protocol,
2589           p_activate_params->rf_tech_param.param.pa.sel_rsp)) {
2590     /* Notify upper layer of NFA_ACTIVATED_EVT if needed, and start presence
2591      * check timer */
2592     /* Set data callback (pass all incoming data to upper layer using
2593      * NFA_DATA_EVT) */
2594     NFC_SetStaticRfCback(nfa_rw_raw_mode_data_cback);
2595 
2596     /* Notify app of NFA_ACTIVATED_EVT and start presence check timer */
2597     nfa_dm_notify_activation_status(NFA_STATUS_OK, nullptr);
2598     nfa_rw_check_start_presence_check_timer(NFA_RW_PRESENCE_CHECK_INTERVAL);
2599     return true;
2600   }
2601 
2602   /* Initialize RW module */
2603   if ((RW_SetActivatedTagType(p_activate_params, nfa_rw_cback)) !=
2604       NFC_STATUS_OK) {
2605     /* Log error (stay in NFA_RW_ST_ACTIVATED state until deactivation) */
2606     LOG(ERROR) << StringPrintf("RW_SetActivatedTagType failed.");
2607     return true;
2608   }
2609 
2610   /* Perform protocol-specific actions */
2611   if (NFC_PROTOCOL_T1T == nfa_rw_cb.protocol) {
2612     /* Retrieve HR and UID fields from activation notification */
2613     memcpy(tag_params.t1t.uid, p_activate_params->rf_tech_param.param.pa.nfcid1,
2614            p_activate_params->rf_tech_param.param.pa.nfcid1_len);
2615 
2616     if (NFC_GetNCIVersion() == NCI_VERSION_2_0) {
2617       memcpy(tag_params.t1t.hr, p_activate_params->rf_tech_param.param.pa.hr,
2618              NFA_T1T_HR_LEN);
2619     } else {
2620       memcpy(tag_params.t1t.hr,
2621              p_activate_params->intf_param.intf_param.frame.param,
2622              NFA_T1T_HR_LEN);
2623       tNFA_RW_MSG msg;
2624       msg.op_req.op = NFA_RW_OP_T1T_RID;
2625       bool free_buf = nfa_rw_handle_op_req(&msg);
2626       CHECK(free_buf)
2627           << "nfa_rw_handle_op_req is holding on to soon-garbage stack memory.";
2628       /* Delay notifying upper layer of NFA_ACTIVATED_EVT
2629          until HR0/HR1 is received */
2630       activate_notify = false;
2631     }
2632   } else if (NFC_PROTOCOL_T2T == nfa_rw_cb.protocol) {
2633     /* Retrieve UID fields from activation notification */
2634     memcpy(tag_params.t2t.uid, p_activate_params->rf_tech_param.param.pa.nfcid1,
2635            p_activate_params->rf_tech_param.param.pa.nfcid1_len);
2636   } else if (NFC_PROTOCOL_T3T == nfa_rw_cb.protocol) {
2637     if (appl_dta_mode_flag) {
2638       /* Incase of DTA mode Dont send commands to get system code. Just notify
2639        * activation */
2640       activate_notify = true;
2641     } else {
2642       /* Delay notifying upper layer of NFA_ACTIVATED_EVT until system codes
2643        * are retrieved */
2644       activate_notify = false;
2645 
2646       /* Issue command to get Felica system codes */
2647       tNFA_RW_MSG msg;
2648       msg.op_req.op = NFA_RW_OP_T3T_GET_SYSTEM_CODES;
2649       bool free_buf = nfa_rw_handle_op_req(&msg);
2650       CHECK(free_buf)
2651           << "nfa_rw_handle_op_req is holding on to soon-garbage stack memory.";
2652     }
2653   } else if (NFA_PROTOCOL_T5T == nfa_rw_cb.protocol) {
2654     /* Delay notifying upper layer of NFA_ACTIVATED_EVT to retrieve additional
2655      * tag infomation */
2656     nfa_rw_cb.flags |= NFA_RW_FL_ACTIVATION_NTF_PENDING;
2657     activate_notify = false;
2658 
2659     /* store DSFID and UID from activation NTF */
2660     nfa_rw_cb.i93_dsfid = p_activate_params->rf_tech_param.param.pi93.dsfid;
2661 
2662     p = nfa_rw_cb.i93_uid;
2663     ARRAY8_TO_STREAM(p, p_activate_params->rf_tech_param.param.pi93.uid);
2664 
2665     if ((nfa_rw_cb.i93_uid[1] == I93_UID_IC_MFG_CODE_TI) &&
2666         (((nfa_rw_cb.i93_uid[2] & I93_UID_TAG_IT_HF_I_PRODUCT_ID_MASK) ==
2667           I93_UID_TAG_IT_HF_I_STD_CHIP_INLAY) ||
2668          ((nfa_rw_cb.i93_uid[2] & I93_UID_TAG_IT_HF_I_PRODUCT_ID_MASK) ==
2669           I93_UID_TAG_IT_HF_I_PRO_CHIP_INLAY))) {
2670       /* these don't support Get System Information Command */
2671       nfa_rw_cb.i93_block_size = I93_TAG_IT_HF_I_STD_PRO_CHIP_INLAY_BLK_SIZE;
2672       nfa_rw_cb.i93_afi_location =
2673           I93_TAG_IT_HF_I_STD_PRO_CHIP_INLAY_AFI_LOCATION;
2674 
2675       if ((nfa_rw_cb.i93_uid[2] & I93_UID_TAG_IT_HF_I_PRODUCT_ID_MASK) ==
2676           I93_UID_TAG_IT_HF_I_STD_CHIP_INLAY) {
2677         nfa_rw_cb.i93_num_block = I93_TAG_IT_HF_I_STD_CHIP_INLAY_NUM_TOTAL_BLK;
2678       } else {
2679         nfa_rw_cb.i93_num_block = I93_TAG_IT_HF_I_PRO_CHIP_INLAY_NUM_TOTAL_BLK;
2680       }
2681 
2682       /* read AFI */
2683       if (RW_I93ReadSingleBlock((uint8_t)(nfa_rw_cb.i93_afi_location /
2684                                           nfa_rw_cb.i93_block_size)) !=
2685           NFC_STATUS_OK) {
2686         /* notify activation without AFI/IC-Ref */
2687         nfa_rw_cb.flags &= ~NFA_RW_FL_ACTIVATION_NTF_PENDING;
2688         activate_notify = true;
2689 
2690         tag_params.i93.info_flags =
2691             (I93_INFO_FLAG_DSFID | I93_INFO_FLAG_MEM_SIZE);
2692         tag_params.i93.dsfid = nfa_rw_cb.i93_dsfid;
2693         tag_params.i93.block_size = nfa_rw_cb.i93_block_size;
2694         tag_params.i93.num_block = nfa_rw_cb.i93_num_block;
2695         memcpy(tag_params.i93.uid, nfa_rw_cb.i93_uid, I93_UID_BYTE_LEN);
2696       }
2697     } else {
2698       /* All of ICODE supports Get System Information Command */
2699       /* Tag-it HF-I Plus Chip/Inlay supports Get System Information Command */
2700       /* just try for others */
2701 
2702       if (RW_I93GetSysInfo(nfa_rw_cb.i93_uid) != NFC_STATUS_OK) {
2703         /* notify activation without AFI/MEM size/IC-Ref */
2704         nfa_rw_cb.flags &= ~NFA_RW_FL_ACTIVATION_NTF_PENDING;
2705         activate_notify = true;
2706 
2707         tag_params.i93.info_flags = I93_INFO_FLAG_DSFID;
2708         tag_params.i93.dsfid = nfa_rw_cb.i93_dsfid;
2709         tag_params.i93.block_size = 0;
2710         tag_params.i93.num_block = 0;
2711         memcpy(tag_params.i93.uid, nfa_rw_cb.i93_uid, I93_UID_BYTE_LEN);
2712       } else {
2713         /* reset memory size */
2714         nfa_rw_cb.i93_block_size = 0;
2715         nfa_rw_cb.i93_num_block = 0;
2716       }
2717     }
2718   }
2719 
2720   /* Notify upper layer of NFA_ACTIVATED_EVT if needed, and start presence check
2721    * timer */
2722   if (activate_notify) {
2723     nfa_dm_notify_activation_status(NFA_STATUS_OK, &tag_params);
2724     nfa_rw_check_start_presence_check_timer(NFA_RW_PRESENCE_CHECK_INTERVAL);
2725   }
2726 
2727   return true;
2728 }
2729 
2730 /*******************************************************************************
2731 **
2732 ** Function         nfa_rw_deactivate_ntf
2733 **
2734 ** Description      Handler for NFA_RW_DEACTIVATE_NTF
2735 **
2736 ** Returns          TRUE (message buffer to be freed by caller)
2737 **
2738 *******************************************************************************/
nfa_rw_deactivate_ntf(tNFA_RW_MSG * p_data)2739 bool nfa_rw_deactivate_ntf(__attribute__((unused)) tNFA_RW_MSG* p_data) {
2740   /* Clear the activated flag */
2741   nfa_rw_cb.flags &= ~NFA_RW_FL_ACTIVATED;
2742 
2743   /* Free buffer for incoming NDEF message, in case we were in the middle of a
2744    * read operation */
2745   nfa_rw_free_ndef_rx_buf();
2746 
2747   /* If there is a pending command message, then free it */
2748   if (nfa_rw_cb.p_pending_msg) {
2749     if ((nfa_rw_cb.p_pending_msg->op_req.op == NFA_RW_OP_SEND_RAW_FRAME) &&
2750         (nfa_rw_cb.p_pending_msg->op_req.params.send_raw_frame.p_data)) {
2751       GKI_freebuf(nfa_rw_cb.p_pending_msg->op_req.params.send_raw_frame.p_data);
2752     }
2753 
2754     GKI_freebuf(nfa_rw_cb.p_pending_msg);
2755     nfa_rw_cb.p_pending_msg = nullptr;
2756   }
2757 
2758   /* If we are in the process of waking up tag from HALT state */
2759   if (nfa_rw_cb.halt_event == RW_T2T_READ_CPLT_EVT) {
2760     if (nfa_rw_cb.rw_data.data.p_data)
2761       GKI_freebuf(nfa_rw_cb.rw_data.data.p_data);
2762     nfa_rw_cb.rw_data.data.p_data = nullptr;
2763   }
2764 
2765   /* Stop presence check timer (if started) */
2766   nfa_rw_stop_presence_check_timer();
2767 
2768   return true;
2769 }
2770 
2771 /*******************************************************************************
2772 **
2773 ** Function         nfa_rw_handle_op_req
2774 **
2775 ** Description      Handler for NFA_RW_OP_REQUEST_EVT, operation request
2776 **
2777 ** Returns          TRUE if caller should free p_data
2778 **                  FALSE if caller does not need to free p_data
2779 **
2780 *******************************************************************************/
nfa_rw_handle_op_req(tNFA_RW_MSG * p_data)2781 bool nfa_rw_handle_op_req(tNFA_RW_MSG* p_data) {
2782   bool freebuf = true;
2783   uint16_t presence_check_start_delay = 0;
2784 
2785   /* Check if activated */
2786   if (!(nfa_rw_cb.flags & NFA_RW_FL_ACTIVATED)) {
2787     LOG(ERROR) << StringPrintf("nfa_rw_handle_op_req: not activated");
2788     return (nfa_rw_op_req_while_inactive(p_data));
2789   }
2790   /* Check if currently busy with another API call */
2791   else if (nfa_rw_cb.flags & NFA_RW_FL_API_BUSY) {
2792     return (nfa_rw_op_req_while_busy(p_data));
2793   }
2794   /* Check if currently busy with auto-presence check */
2795   else if (nfa_rw_cb.flags & NFA_RW_FL_AUTO_PRESENCE_CHECK_BUSY) {
2796     /* Cache the command (will be handled once auto-presence check is completed)
2797      */
2798     DLOG_IF(INFO, nfc_debug_enabled) << StringPrintf(
2799         "Deferring operation %i until after auto-presence check is completed",
2800         p_data->op_req.op);
2801     nfa_rw_cb.p_pending_msg = p_data;
2802     nfa_rw_cb.flags |= NFA_RW_FL_API_BUSY;
2803     return false;
2804   }
2805 
2806   DLOG_IF(INFO, nfc_debug_enabled)
2807       << StringPrintf("nfa_rw_handle_op_req: op=0x%02x", p_data->op_req.op);
2808 
2809   nfa_rw_cb.flags |= NFA_RW_FL_API_BUSY;
2810 
2811   /* Stop the presence check timer */
2812   nfa_rw_stop_presence_check_timer();
2813 
2814   /* Store the current operation */
2815   nfa_rw_cb.cur_op = p_data->op_req.op;
2816 
2817   /* Call appropriate handler for requested operation */
2818   switch (p_data->op_req.op) {
2819     case NFA_RW_OP_DETECT_NDEF:
2820       nfa_rw_cb.skip_dyn_locks = false;
2821       nfa_rw_detect_ndef();
2822       break;
2823 
2824     case NFA_RW_OP_READ_NDEF:
2825       nfa_rw_read_ndef();
2826       break;
2827 
2828     case NFA_RW_OP_WRITE_NDEF:
2829       nfa_rw_write_ndef(p_data);
2830       break;
2831 
2832     case NFA_RW_OP_SEND_RAW_FRAME:
2833       presence_check_start_delay =
2834           p_data->op_req.params.send_raw_frame.p_data->layer_specific;
2835 
2836       NFC_SendData(NFC_RF_CONN_ID, p_data->op_req.params.send_raw_frame.p_data);
2837 
2838       /* Clear the busy flag */
2839       nfa_rw_cb.flags &= ~NFA_RW_FL_API_BUSY;
2840 
2841       /* Start presence_check after specified delay */
2842       nfa_rw_check_start_presence_check_timer(presence_check_start_delay);
2843       break;
2844 
2845     case NFA_RW_OP_PRESENCE_CHECK:
2846       nfa_rw_presence_check(p_data);
2847       break;
2848 
2849     case NFA_RW_OP_FORMAT_TAG:
2850       nfa_rw_format_tag();
2851       break;
2852 
2853     case NFA_RW_OP_DETECT_LOCK_TLV:
2854       nfa_rw_detect_tlv(TAG_LOCK_CTRL_TLV);
2855       break;
2856 
2857     case NFA_RW_OP_DETECT_MEM_TLV:
2858       nfa_rw_detect_tlv(TAG_MEM_CTRL_TLV);
2859       break;
2860 
2861     case NFA_RW_OP_SET_TAG_RO:
2862       nfa_rw_cb.b_hard_lock = p_data->op_req.params.set_readonly.b_hard_lock;
2863       nfa_rw_config_tag_ro(nfa_rw_cb.b_hard_lock);
2864       break;
2865 
2866     case NFA_RW_OP_T1T_RID:
2867       nfa_rw_t1t_rid();
2868       break;
2869 
2870     case NFA_RW_OP_T1T_RALL:
2871       nfa_rw_t1t_rall();
2872       break;
2873 
2874     case NFA_RW_OP_T1T_READ:
2875       nfa_rw_t1t_read(p_data);
2876       break;
2877 
2878     case NFA_RW_OP_T1T_WRITE:
2879       nfa_rw_t1t_write(p_data);
2880       break;
2881 
2882     case NFA_RW_OP_T1T_RSEG:
2883       nfa_rw_t1t_rseg(p_data);
2884       break;
2885 
2886     case NFA_RW_OP_T1T_READ8:
2887       nfa_rw_t1t_read8(p_data);
2888       break;
2889 
2890     case NFA_RW_OP_T1T_WRITE8:
2891       nfa_rw_t1t_write8(p_data);
2892       break;
2893 
2894     /* Type-2 tag commands */
2895     case NFA_RW_OP_T2T_READ:
2896       nfa_rw_t2t_read(p_data);
2897       break;
2898 
2899     case NFA_RW_OP_T2T_WRITE:
2900       nfa_rw_t2t_write(p_data);
2901       break;
2902 
2903     case NFA_RW_OP_T2T_SECTOR_SELECT:
2904       nfa_rw_t2t_sector_select(p_data);
2905       break;
2906 
2907     /* Type-3 tag commands */
2908     case NFA_RW_OP_T3T_READ:
2909       nfa_rw_t3t_read(p_data);
2910       break;
2911 
2912     case NFA_RW_OP_T3T_WRITE:
2913       nfa_rw_t3t_write(p_data);
2914       break;
2915 
2916     case NFA_RW_OP_T3T_GET_SYSTEM_CODES:
2917       nfa_rw_t3t_get_system_codes();
2918       break;
2919 
2920     /* ISO 15693 tag commands */
2921     case NFA_RW_OP_I93_INVENTORY:
2922     case NFA_RW_OP_I93_STAY_QUIET:
2923     case NFA_RW_OP_I93_READ_SINGLE_BLOCK:
2924     case NFA_RW_OP_I93_WRITE_SINGLE_BLOCK:
2925     case NFA_RW_OP_I93_LOCK_BLOCK:
2926     case NFA_RW_OP_I93_READ_MULTI_BLOCK:
2927     case NFA_RW_OP_I93_WRITE_MULTI_BLOCK:
2928     case NFA_RW_OP_I93_SELECT:
2929     case NFA_RW_OP_I93_RESET_TO_READY:
2930     case NFA_RW_OP_I93_WRITE_AFI:
2931     case NFA_RW_OP_I93_LOCK_AFI:
2932     case NFA_RW_OP_I93_WRITE_DSFID:
2933     case NFA_RW_OP_I93_LOCK_DSFID:
2934     case NFA_RW_OP_I93_GET_SYS_INFO:
2935     case NFA_RW_OP_I93_GET_MULTI_BLOCK_STATUS:
2936       nfa_rw_i93_command(p_data);
2937       break;
2938 
2939     default:
2940       LOG(ERROR) << StringPrintf("nfa_rw_handle_api: unhandled operation: %i",
2941                                  p_data->op_req.op);
2942       break;
2943   }
2944 
2945   return (freebuf);
2946 }
2947 
2948 /*******************************************************************************
2949 **
2950 ** Function         nfa_rw_op_req_while_busy
2951 **
2952 ** Description      Handle operation request while busy
2953 **
2954 ** Returns          TRUE if caller should free p_data
2955 **                  FALSE if caller does not need to free p_data
2956 **
2957 *******************************************************************************/
nfa_rw_op_req_while_busy(tNFA_RW_MSG * p_data)2958 static bool nfa_rw_op_req_while_busy(tNFA_RW_MSG* p_data) {
2959   bool freebuf = true;
2960   tNFA_CONN_EVT_DATA conn_evt_data;
2961   uint8_t event;
2962 
2963   LOG(ERROR) << StringPrintf("nfa_rw_op_req_while_busy: unable to handle API");
2964 
2965   /* Return appropriate event for requested API, with status=BUSY */
2966   conn_evt_data.status = NFA_STATUS_BUSY;
2967 
2968   switch (p_data->op_req.op) {
2969     case NFA_RW_OP_DETECT_NDEF:
2970       conn_evt_data.ndef_detect.cur_size = 0;
2971       conn_evt_data.ndef_detect.max_size = 0;
2972       conn_evt_data.ndef_detect.flags = RW_NDEF_FL_UNKNOWN;
2973       event = NFA_NDEF_DETECT_EVT;
2974       break;
2975     case NFA_RW_OP_READ_NDEF:
2976     case NFA_RW_OP_T1T_RID:
2977     case NFA_RW_OP_T1T_RALL:
2978     case NFA_RW_OP_T1T_READ:
2979     case NFA_RW_OP_T1T_RSEG:
2980     case NFA_RW_OP_T1T_READ8:
2981     case NFA_RW_OP_T2T_READ:
2982     case NFA_RW_OP_T3T_READ:
2983       event = NFA_READ_CPLT_EVT;
2984       break;
2985     case NFA_RW_OP_WRITE_NDEF:
2986     case NFA_RW_OP_T1T_WRITE:
2987     case NFA_RW_OP_T1T_WRITE8:
2988     case NFA_RW_OP_T2T_WRITE:
2989     case NFA_RW_OP_T3T_WRITE:
2990       event = NFA_WRITE_CPLT_EVT;
2991       break;
2992     case NFA_RW_OP_FORMAT_TAG:
2993       event = NFA_FORMAT_CPLT_EVT;
2994       break;
2995     case NFA_RW_OP_DETECT_LOCK_TLV:
2996     case NFA_RW_OP_DETECT_MEM_TLV:
2997       event = NFA_TLV_DETECT_EVT;
2998       break;
2999     case NFA_RW_OP_SET_TAG_RO:
3000       event = NFA_SET_TAG_RO_EVT;
3001       break;
3002     case NFA_RW_OP_T2T_SECTOR_SELECT:
3003       event = NFA_SELECT_CPLT_EVT;
3004       break;
3005     case NFA_RW_OP_I93_INVENTORY:
3006     case NFA_RW_OP_I93_STAY_QUIET:
3007     case NFA_RW_OP_I93_READ_SINGLE_BLOCK:
3008     case NFA_RW_OP_I93_WRITE_SINGLE_BLOCK:
3009     case NFA_RW_OP_I93_LOCK_BLOCK:
3010     case NFA_RW_OP_I93_READ_MULTI_BLOCK:
3011     case NFA_RW_OP_I93_WRITE_MULTI_BLOCK:
3012     case NFA_RW_OP_I93_SELECT:
3013     case NFA_RW_OP_I93_RESET_TO_READY:
3014     case NFA_RW_OP_I93_WRITE_AFI:
3015     case NFA_RW_OP_I93_LOCK_AFI:
3016     case NFA_RW_OP_I93_WRITE_DSFID:
3017     case NFA_RW_OP_I93_LOCK_DSFID:
3018     case NFA_RW_OP_I93_GET_SYS_INFO:
3019     case NFA_RW_OP_I93_GET_MULTI_BLOCK_STATUS:
3020       event = NFA_I93_CMD_CPLT_EVT;
3021       break;
3022     default:
3023       return (freebuf);
3024   }
3025   nfa_dm_act_conn_cback_notify(event, &conn_evt_data);
3026 
3027   return (freebuf);
3028 }
3029 
3030 /*******************************************************************************
3031 **
3032 ** Function         nfa_rw_op_req_while_inactive
3033 **
3034 ** Description      Handle operation request while inactive
3035 **
3036 ** Returns          TRUE if caller should free p_data
3037 **                  FALSE if caller does not need to free p_data
3038 **
3039 *******************************************************************************/
nfa_rw_op_req_while_inactive(tNFA_RW_MSG * p_data)3040 static bool nfa_rw_op_req_while_inactive(tNFA_RW_MSG* p_data) {
3041   bool freebuf = true;
3042   tNFA_CONN_EVT_DATA conn_evt_data;
3043   uint8_t event;
3044 
3045   LOG(ERROR) << StringPrintf(
3046       "nfa_rw_op_req_while_inactive: unable to handle API");
3047 
3048   /* Return appropriate event for requested API, with status=REJECTED */
3049   conn_evt_data.status = NFA_STATUS_REJECTED;
3050 
3051   switch (p_data->op_req.op) {
3052     case NFA_RW_OP_DETECT_NDEF:
3053       conn_evt_data.ndef_detect.cur_size = 0;
3054       conn_evt_data.ndef_detect.max_size = 0;
3055       conn_evt_data.ndef_detect.flags = RW_NDEF_FL_UNKNOWN;
3056       event = NFA_NDEF_DETECT_EVT;
3057       break;
3058     case NFA_RW_OP_READ_NDEF:
3059     case NFA_RW_OP_T1T_RID:
3060     case NFA_RW_OP_T1T_RALL:
3061     case NFA_RW_OP_T1T_READ:
3062     case NFA_RW_OP_T1T_RSEG:
3063     case NFA_RW_OP_T1T_READ8:
3064     case NFA_RW_OP_T2T_READ:
3065     case NFA_RW_OP_T3T_READ:
3066       event = NFA_READ_CPLT_EVT;
3067       break;
3068     case NFA_RW_OP_WRITE_NDEF:
3069     case NFA_RW_OP_T1T_WRITE:
3070     case NFA_RW_OP_T1T_WRITE8:
3071     case NFA_RW_OP_T2T_WRITE:
3072     case NFA_RW_OP_T3T_WRITE:
3073       event = NFA_WRITE_CPLT_EVT;
3074       break;
3075     case NFA_RW_OP_FORMAT_TAG:
3076       event = NFA_FORMAT_CPLT_EVT;
3077       break;
3078     case NFA_RW_OP_DETECT_LOCK_TLV:
3079     case NFA_RW_OP_DETECT_MEM_TLV:
3080       event = NFA_TLV_DETECT_EVT;
3081       break;
3082     case NFA_RW_OP_SET_TAG_RO:
3083       event = NFA_SET_TAG_RO_EVT;
3084       break;
3085     case NFA_RW_OP_T2T_SECTOR_SELECT:
3086       event = NFA_SELECT_CPLT_EVT;
3087       break;
3088     case NFA_RW_OP_I93_INVENTORY:
3089     case NFA_RW_OP_I93_STAY_QUIET:
3090     case NFA_RW_OP_I93_READ_SINGLE_BLOCK:
3091     case NFA_RW_OP_I93_WRITE_SINGLE_BLOCK:
3092     case NFA_RW_OP_I93_LOCK_BLOCK:
3093     case NFA_RW_OP_I93_READ_MULTI_BLOCK:
3094     case NFA_RW_OP_I93_WRITE_MULTI_BLOCK:
3095     case NFA_RW_OP_I93_SELECT:
3096     case NFA_RW_OP_I93_RESET_TO_READY:
3097     case NFA_RW_OP_I93_WRITE_AFI:
3098     case NFA_RW_OP_I93_LOCK_AFI:
3099     case NFA_RW_OP_I93_WRITE_DSFID:
3100     case NFA_RW_OP_I93_LOCK_DSFID:
3101     case NFA_RW_OP_I93_GET_SYS_INFO:
3102     case NFA_RW_OP_I93_GET_MULTI_BLOCK_STATUS:
3103       event = NFA_I93_CMD_CPLT_EVT;
3104       break;
3105     default:
3106       return (freebuf);
3107   }
3108   nfa_dm_act_conn_cback_notify(event, &conn_evt_data);
3109 
3110   return (freebuf);
3111 }
3112 
3113 /*******************************************************************************
3114 **
3115 ** Function         nfa_rw_command_complete
3116 **
3117 ** Description      Handle command complete: clear the busy flag,
3118 **                  and start the presence check timer if applicable.
3119 **
3120 ** Returns          None
3121 **
3122 *******************************************************************************/
nfa_rw_command_complete(void)3123 void nfa_rw_command_complete(void) {
3124   /* Clear the busy flag */
3125   nfa_rw_cb.flags &= ~NFA_RW_FL_API_BUSY;
3126 
3127   /* Restart presence_check timer */
3128   nfa_rw_check_start_presence_check_timer(NFA_RW_PRESENCE_CHECK_INTERVAL);
3129 }
3130