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19#include <linux/module.h>
20#include <linux/nfc.h>
21#include <linux/delay.h>
22#include <net/nfc/nci.h>
23#include <net/nfc/nci_core.h>
24
25#include "st-nci.h"
26
27struct st_nci_pipe_info {
28 u8 pipe_state;
29 u8 src_host_id;
30 u8 src_gate_id;
31 u8 dst_host_id;
32 u8 dst_gate_id;
33} __packed;
34
35
36#define ST_NCI_HOST_CONTROLLER_ID 0x00
37#define ST_NCI_TERMINAL_HOST_ID 0x01
38#define ST_NCI_UICC_HOST_ID 0x02
39#define ST_NCI_ESE_HOST_ID 0xc0
40
41
42#define ST_NCI_APDU_READER_GATE 0xf0
43#define ST_NCI_CONNECTIVITY_GATE 0x41
44
45
46#define ST_NCI_DEVICE_MGNT_PIPE 0x02
47
48
49#define ST_NCI_SE_COUNT_PIPE_UICC 0x01
50
51#define ST_NCI_SE_COUNT_PIPE_EMBEDDED 0x02
52
53#define ST_NCI_SE_TO_HOT_PLUG 1000
54#define ST_NCI_SE_TO_PIPES 2000
55
56#define ST_NCI_EVT_HOT_PLUG_IS_INHIBITED(x) (x->data[0] & 0x80)
57
58#define NCI_HCI_APDU_PARAM_ATR 0x01
59#define NCI_HCI_ADMIN_PARAM_SESSION_IDENTITY 0x01
60#define NCI_HCI_ADMIN_PARAM_WHITELIST 0x03
61#define NCI_HCI_ADMIN_PARAM_HOST_LIST 0x04
62
63#define ST_NCI_EVT_SE_HARD_RESET 0x20
64#define ST_NCI_EVT_TRANSMIT_DATA 0x10
65#define ST_NCI_EVT_WTX_REQUEST 0x11
66#define ST_NCI_EVT_SE_SOFT_RESET 0x11
67#define ST_NCI_EVT_SE_END_OF_APDU_TRANSFER 0x21
68#define ST_NCI_EVT_HOT_PLUG 0x03
69
70#define ST_NCI_SE_MODE_OFF 0x00
71#define ST_NCI_SE_MODE_ON 0x01
72
73#define ST_NCI_EVT_CONNECTIVITY 0x10
74#define ST_NCI_EVT_TRANSACTION 0x12
75
76#define ST_NCI_DM_GETINFO 0x13
77#define ST_NCI_DM_GETINFO_PIPE_LIST 0x02
78#define ST_NCI_DM_GETINFO_PIPE_INFO 0x01
79#define ST_NCI_DM_PIPE_CREATED 0x02
80#define ST_NCI_DM_PIPE_OPEN 0x04
81#define ST_NCI_DM_RF_ACTIVE 0x80
82#define ST_NCI_DM_DISCONNECT 0x30
83
84#define ST_NCI_DM_IS_PIPE_OPEN(p) \
85 ((p & 0x0f) == (ST_NCI_DM_PIPE_CREATED | ST_NCI_DM_PIPE_OPEN))
86
87#define ST_NCI_ATR_DEFAULT_BWI 0x04
88
89
90
91
92
93#define ST_NCI_BWI_TO_TIMEOUT(x) ((1 << x) * 200)
94#define ST_NCI_ATR_GET_Y_FROM_TD(x) (x >> 4)
95
96
97#define ST_NCI_ATR_TA_PRESENT(x) (x & 0x01)
98
99#define ST_NCI_ATR_TB_PRESENT(x) (x & 0x02)
100
101#define ST_NCI_NUM_DEVICES 256
102
103static DECLARE_BITMAP(dev_mask, ST_NCI_NUM_DEVICES);
104
105
106static struct nci_hci_gate st_nci_gates[] = {
107 {NCI_HCI_ADMIN_GATE, NCI_HCI_ADMIN_PIPE,
108 ST_NCI_HOST_CONTROLLER_ID},
109 {NCI_HCI_LINK_MGMT_GATE, NCI_HCI_LINK_MGMT_PIPE,
110 ST_NCI_HOST_CONTROLLER_ID},
111 {ST_NCI_DEVICE_MGNT_GATE, ST_NCI_DEVICE_MGNT_PIPE,
112 ST_NCI_HOST_CONTROLLER_ID},
113
114 {NCI_HCI_IDENTITY_MGMT_GATE, NCI_HCI_INVALID_PIPE,
115 ST_NCI_HOST_CONTROLLER_ID},
116
117
118 {ST_NCI_CONNECTIVITY_GATE, NCI_HCI_DO_NOT_OPEN_PIPE,
119 ST_NCI_HOST_CONTROLLER_ID},
120 {ST_NCI_APDU_READER_GATE, NCI_HCI_DO_NOT_OPEN_PIPE,
121 ST_NCI_HOST_CONTROLLER_ID},
122};
123
124static u8 st_nci_se_get_bwi(struct nci_dev *ndev)
125{
126 int i;
127 u8 td;
128 struct st_nci_info *info = nci_get_drvdata(ndev);
129
130
131 for (i = 1; i < ST_NCI_ESE_MAX_LENGTH; i++) {
132 td = ST_NCI_ATR_GET_Y_FROM_TD(info->se_info.atr[i]);
133 if (ST_NCI_ATR_TA_PRESENT(td))
134 i++;
135 if (ST_NCI_ATR_TB_PRESENT(td)) {
136 i++;
137 return info->se_info.atr[i] >> 4;
138 }
139 }
140 return ST_NCI_ATR_DEFAULT_BWI;
141}
142
143static void st_nci_se_get_atr(struct nci_dev *ndev)
144{
145 struct st_nci_info *info = nci_get_drvdata(ndev);
146 int r;
147 struct sk_buff *skb;
148
149 r = nci_hci_get_param(ndev, ST_NCI_APDU_READER_GATE,
150 NCI_HCI_APDU_PARAM_ATR, &skb);
151 if (r < 0)
152 return;
153
154 if (skb->len <= ST_NCI_ESE_MAX_LENGTH) {
155 memcpy(info->se_info.atr, skb->data, skb->len);
156
157 info->se_info.wt_timeout =
158 ST_NCI_BWI_TO_TIMEOUT(st_nci_se_get_bwi(ndev));
159 }
160 kfree_skb(skb);
161}
162
163int st_nci_hci_load_session(struct nci_dev *ndev)
164{
165 int i, j, r;
166 struct sk_buff *skb_pipe_list, *skb_pipe_info;
167 struct st_nci_pipe_info *dm_pipe_info;
168 u8 pipe_list[] = { ST_NCI_DM_GETINFO_PIPE_LIST,
169 ST_NCI_TERMINAL_HOST_ID};
170 u8 pipe_info[] = { ST_NCI_DM_GETINFO_PIPE_INFO,
171 ST_NCI_TERMINAL_HOST_ID, 0};
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189 r = nci_hci_connect_gate(ndev, ST_NCI_HOST_CONTROLLER_ID,
190 ST_NCI_DEVICE_MGNT_GATE,
191 ST_NCI_DEVICE_MGNT_PIPE);
192 if (r < 0)
193 return r;
194
195
196 r = nci_hci_send_cmd(ndev, ST_NCI_DEVICE_MGNT_GATE,
197 ST_NCI_DM_GETINFO, pipe_list, sizeof(pipe_list),
198 &skb_pipe_list);
199 if (r < 0)
200 return r;
201
202
203 for (i = 0; i < skb_pipe_list->len; i++) {
204 pipe_info[2] = skb_pipe_list->data[i];
205 r = nci_hci_send_cmd(ndev, ST_NCI_DEVICE_MGNT_GATE,
206 ST_NCI_DM_GETINFO, pipe_info,
207 sizeof(pipe_info), &skb_pipe_info);
208
209 if (r)
210 continue;
211
212
213
214
215
216
217
218
219
220
221 dm_pipe_info = (struct st_nci_pipe_info *)skb_pipe_info->data;
222 if (dm_pipe_info->dst_gate_id == ST_NCI_APDU_READER_GATE &&
223 dm_pipe_info->src_host_id == ST_NCI_UICC_HOST_ID) {
224 pr_err("Unexpected apdu_reader pipe on host %x\n",
225 dm_pipe_info->src_host_id);
226 kfree_skb(skb_pipe_info);
227 continue;
228 }
229
230 for (j = 3; (j < ARRAY_SIZE(st_nci_gates)) &&
231 (st_nci_gates[j].gate != dm_pipe_info->dst_gate_id); j++)
232 ;
233
234 if (j < ARRAY_SIZE(st_nci_gates) &&
235 st_nci_gates[j].gate == dm_pipe_info->dst_gate_id &&
236 ST_NCI_DM_IS_PIPE_OPEN(dm_pipe_info->pipe_state)) {
237 ndev->hci_dev->init_data.gates[j].pipe = pipe_info[2];
238
239 ndev->hci_dev->gate2pipe[st_nci_gates[j].gate] =
240 pipe_info[2];
241 ndev->hci_dev->pipes[pipe_info[2]].gate =
242 st_nci_gates[j].gate;
243 ndev->hci_dev->pipes[pipe_info[2]].host =
244 dm_pipe_info->src_host_id;
245 }
246 kfree_skb(skb_pipe_info);
247 }
248
249
250
251
252
253 r = nci_hci_connect_gate(ndev, ST_NCI_HOST_CONTROLLER_ID,
254 NCI_HCI_LINK_MGMT_GATE,
255 NCI_HCI_LINK_MGMT_PIPE);
256
257 kfree_skb(skb_pipe_list);
258 return r;
259}
260EXPORT_SYMBOL_GPL(st_nci_hci_load_session);
261
262static void st_nci_hci_admin_event_received(struct nci_dev *ndev,
263 u8 event, struct sk_buff *skb)
264{
265 struct st_nci_info *info = nci_get_drvdata(ndev);
266
267 switch (event) {
268 case ST_NCI_EVT_HOT_PLUG:
269 if (info->se_info.se_active) {
270 if (!ST_NCI_EVT_HOT_PLUG_IS_INHIBITED(skb)) {
271 del_timer_sync(&info->se_info.se_active_timer);
272 info->se_info.se_active = false;
273 complete(&info->se_info.req_completion);
274 } else {
275 mod_timer(&info->se_info.se_active_timer,
276 jiffies +
277 msecs_to_jiffies(ST_NCI_SE_TO_PIPES));
278 }
279 }
280 break;
281 default:
282 nfc_err(&ndev->nfc_dev->dev, "Unexpected event on admin gate\n");
283 }
284}
285
286static int st_nci_hci_apdu_reader_event_received(struct nci_dev *ndev,
287 u8 event,
288 struct sk_buff *skb)
289{
290 int r = 0;
291 struct st_nci_info *info = nci_get_drvdata(ndev);
292
293 pr_debug("apdu reader gate event: %x\n", event);
294
295 switch (event) {
296 case ST_NCI_EVT_TRANSMIT_DATA:
297 del_timer_sync(&info->se_info.bwi_timer);
298 info->se_info.bwi_active = false;
299 info->se_info.cb(info->se_info.cb_context,
300 skb->data, skb->len, 0);
301 break;
302 case ST_NCI_EVT_WTX_REQUEST:
303 mod_timer(&info->se_info.bwi_timer, jiffies +
304 msecs_to_jiffies(info->se_info.wt_timeout));
305 break;
306 default:
307 nfc_err(&ndev->nfc_dev->dev, "Unexpected event on apdu reader gate\n");
308 return 1;
309 }
310
311 kfree_skb(skb);
312 return r;
313}
314
315
316
317
318
319
320static int st_nci_hci_connectivity_event_received(struct nci_dev *ndev,
321 u8 host, u8 event,
322 struct sk_buff *skb)
323{
324 int r = 0;
325 struct device *dev = &ndev->nfc_dev->dev;
326 struct nfc_evt_transaction *transaction;
327
328 pr_debug("connectivity gate event: %x\n", event);
329
330 switch (event) {
331 case ST_NCI_EVT_CONNECTIVITY:
332 r = nfc_se_connectivity(ndev->nfc_dev, host);
333 break;
334 case ST_NCI_EVT_TRANSACTION:
335
336
337
338
339
340
341 if (skb->len < NFC_MIN_AID_LENGTH + 2 &&
342 skb->data[0] != NFC_EVT_TRANSACTION_AID_TAG)
343 return -EPROTO;
344
345 transaction = (struct nfc_evt_transaction *)devm_kzalloc(dev,
346 skb->len - 2, GFP_KERNEL);
347
348 transaction->aid_len = skb->data[1];
349 memcpy(transaction->aid, &skb->data[2], transaction->aid_len);
350
351
352 if (skb->data[transaction->aid_len + 2] !=
353 NFC_EVT_TRANSACTION_PARAMS_TAG)
354 return -EPROTO;
355
356 transaction->params_len = skb->data[transaction->aid_len + 3];
357 memcpy(transaction->params, skb->data +
358 transaction->aid_len + 4, transaction->params_len);
359
360 r = nfc_se_transaction(ndev->nfc_dev, host, transaction);
361 break;
362 default:
363 nfc_err(&ndev->nfc_dev->dev, "Unexpected event on connectivity gate\n");
364 return 1;
365 }
366 kfree_skb(skb);
367 return r;
368}
369
370void st_nci_hci_event_received(struct nci_dev *ndev, u8 pipe,
371 u8 event, struct sk_buff *skb)
372{
373 u8 gate = ndev->hci_dev->pipes[pipe].gate;
374 u8 host = ndev->hci_dev->pipes[pipe].host;
375
376 switch (gate) {
377 case NCI_HCI_ADMIN_GATE:
378 st_nci_hci_admin_event_received(ndev, event, skb);
379 break;
380 case ST_NCI_APDU_READER_GATE:
381 st_nci_hci_apdu_reader_event_received(ndev, event, skb);
382 break;
383 case ST_NCI_CONNECTIVITY_GATE:
384 st_nci_hci_connectivity_event_received(ndev, host, event, skb);
385 break;
386 }
387}
388EXPORT_SYMBOL_GPL(st_nci_hci_event_received);
389
390void st_nci_hci_cmd_received(struct nci_dev *ndev, u8 pipe, u8 cmd,
391 struct sk_buff *skb)
392{
393 struct st_nci_info *info = nci_get_drvdata(ndev);
394 u8 gate = ndev->hci_dev->pipes[pipe].gate;
395
396 pr_debug("cmd: %x\n", cmd);
397
398 switch (cmd) {
399 case NCI_HCI_ANY_OPEN_PIPE:
400 if (gate != ST_NCI_APDU_READER_GATE &&
401 ndev->hci_dev->pipes[pipe].host != ST_NCI_UICC_HOST_ID)
402 ndev->hci_dev->count_pipes++;
403
404 if (ndev->hci_dev->count_pipes ==
405 ndev->hci_dev->expected_pipes) {
406 del_timer_sync(&info->se_info.se_active_timer);
407 info->se_info.se_active = false;
408 ndev->hci_dev->count_pipes = 0;
409 complete(&info->se_info.req_completion);
410 }
411 break;
412 }
413}
414EXPORT_SYMBOL_GPL(st_nci_hci_cmd_received);
415
416static int st_nci_control_se(struct nci_dev *ndev, u8 se_idx,
417 u8 state)
418{
419 struct st_nci_info *info = nci_get_drvdata(ndev);
420 int r, i;
421 struct sk_buff *sk_host_list;
422 u8 host_id;
423
424 switch (se_idx) {
425 case ST_NCI_UICC_HOST_ID:
426 ndev->hci_dev->count_pipes = 0;
427 ndev->hci_dev->expected_pipes = ST_NCI_SE_COUNT_PIPE_UICC;
428 break;
429 case ST_NCI_ESE_HOST_ID:
430 ndev->hci_dev->count_pipes = 0;
431 ndev->hci_dev->expected_pipes = ST_NCI_SE_COUNT_PIPE_EMBEDDED;
432 break;
433 default:
434 return -EINVAL;
435 }
436
437
438
439
440
441 reinit_completion(&info->se_info.req_completion);
442 r = nci_nfcee_mode_set(ndev, se_idx, state);
443 if (r != NCI_STATUS_OK)
444 return r;
445
446 mod_timer(&info->se_info.se_active_timer, jiffies +
447 msecs_to_jiffies(ST_NCI_SE_TO_HOT_PLUG));
448 info->se_info.se_active = true;
449
450
451 wait_for_completion_interruptible(&info->se_info.req_completion);
452
453
454
455
456
457
458 if (info->se_info.se_status->is_ese_present &&
459 info->se_info.se_status->is_uicc_present)
460 usleep_range(15000, 20000);
461
462 r = nci_hci_get_param(ndev, NCI_HCI_ADMIN_GATE,
463 NCI_HCI_ADMIN_PARAM_HOST_LIST, &sk_host_list);
464 if (r != NCI_HCI_ANY_OK)
465 return r;
466
467 for (i = 0; i < sk_host_list->len &&
468 sk_host_list->data[i] != se_idx; i++)
469 ;
470 host_id = sk_host_list->data[i];
471 kfree_skb(sk_host_list);
472 if (state == ST_NCI_SE_MODE_ON && host_id == se_idx)
473 return se_idx;
474 else if (state == ST_NCI_SE_MODE_OFF && host_id != se_idx)
475 return se_idx;
476
477 return -1;
478}
479
480int st_nci_disable_se(struct nci_dev *ndev, u32 se_idx)
481{
482 int r;
483
484 pr_debug("st_nci_disable_se\n");
485
486
487
488
489
490
491 r = st_nci_control_se(ndev, se_idx, ST_NCI_SE_MODE_OFF);
492 if (r < 0) {
493
494 if (se_idx == NFC_SE_EMBEDDED) {
495 r = nci_hci_send_event(ndev, ST_NCI_APDU_READER_GATE,
496 ST_NCI_EVT_SE_END_OF_APDU_TRANSFER,
497 NULL, 0);
498 }
499 return r;
500 }
501
502 return 0;
503}
504EXPORT_SYMBOL_GPL(st_nci_disable_se);
505
506int st_nci_enable_se(struct nci_dev *ndev, u32 se_idx)
507{
508 int r;
509
510 pr_debug("st_nci_enable_se\n");
511
512
513
514
515
516
517 r = st_nci_control_se(ndev, se_idx, ST_NCI_SE_MODE_ON);
518 if (r == ST_NCI_ESE_HOST_ID) {
519 st_nci_se_get_atr(ndev);
520 r = nci_hci_send_event(ndev, ST_NCI_APDU_READER_GATE,
521 ST_NCI_EVT_SE_SOFT_RESET, NULL, 0);
522 }
523
524 if (r < 0) {
525
526
527
528
529 nfc_remove_se(ndev->nfc_dev, se_idx);
530 return r;
531 }
532
533 return 0;
534}
535EXPORT_SYMBOL_GPL(st_nci_enable_se);
536
537static int st_nci_hci_network_init(struct nci_dev *ndev)
538{
539 struct st_nci_info *info = nci_get_drvdata(ndev);
540 struct core_conn_create_dest_spec_params *dest_params;
541 struct dest_spec_params spec_params;
542 struct nci_conn_info *conn_info;
543 int r, dev_num;
544
545 dest_params =
546 kzalloc(sizeof(struct core_conn_create_dest_spec_params) +
547 sizeof(struct dest_spec_params), GFP_KERNEL);
548 if (dest_params == NULL) {
549 r = -ENOMEM;
550 goto exit;
551 }
552
553 dest_params->type = NCI_DESTINATION_SPECIFIC_PARAM_NFCEE_TYPE;
554 dest_params->length = sizeof(struct dest_spec_params);
555 spec_params.id = ndev->hci_dev->nfcee_id;
556 spec_params.protocol = NCI_NFCEE_INTERFACE_HCI_ACCESS;
557 memcpy(dest_params->value, &spec_params,
558 sizeof(struct dest_spec_params));
559 r = nci_core_conn_create(ndev, NCI_DESTINATION_NFCEE, 1,
560 sizeof(struct core_conn_create_dest_spec_params) +
561 sizeof(struct dest_spec_params),
562 dest_params);
563 if (r != NCI_STATUS_OK)
564 goto free_dest_params;
565
566 conn_info = ndev->hci_dev->conn_info;
567 if (!conn_info)
568 goto free_dest_params;
569
570 ndev->hci_dev->init_data.gate_count = ARRAY_SIZE(st_nci_gates);
571 memcpy(ndev->hci_dev->init_data.gates, st_nci_gates,
572 sizeof(st_nci_gates));
573
574
575
576
577
578 dev_num = find_first_zero_bit(dev_mask, ST_NCI_NUM_DEVICES);
579 if (dev_num >= ST_NCI_NUM_DEVICES) {
580 r = -ENODEV;
581 goto free_dest_params;
582 }
583
584 scnprintf(ndev->hci_dev->init_data.session_id,
585 sizeof(ndev->hci_dev->init_data.session_id),
586 "%s%2x", "ST21BH", dev_num);
587
588 r = nci_hci_dev_session_init(ndev);
589 if (r != NCI_HCI_ANY_OK)
590 goto free_dest_params;
591
592
593
594
595
596
597 if (test_bit(ST_NCI_FACTORY_MODE, &info->flags))
598 r = nci_nfcee_mode_set(ndev,
599 ndev->hci_dev->conn_info->dest_params->id,
600 NCI_NFCEE_DISABLE);
601 else
602 r = nci_nfcee_mode_set(ndev,
603 ndev->hci_dev->conn_info->dest_params->id,
604 NCI_NFCEE_ENABLE);
605
606free_dest_params:
607 kfree(dest_params);
608
609exit:
610 return r;
611}
612
613int st_nci_discover_se(struct nci_dev *ndev)
614{
615 u8 white_list[2];
616 int r, wl_size = 0;
617 int se_count = 0;
618 struct st_nci_info *info = nci_get_drvdata(ndev);
619
620 pr_debug("st_nci_discover_se\n");
621
622 r = st_nci_hci_network_init(ndev);
623 if (r != 0)
624 return r;
625
626 if (test_bit(ST_NCI_FACTORY_MODE, &info->flags))
627 return 0;
628
629 if (info->se_info.se_status->is_uicc_present)
630 white_list[wl_size++] = ST_NCI_UICC_HOST_ID;
631 if (info->se_info.se_status->is_ese_present)
632 white_list[wl_size++] = ST_NCI_ESE_HOST_ID;
633
634 if (wl_size) {
635 r = nci_hci_set_param(ndev, NCI_HCI_ADMIN_GATE,
636 NCI_HCI_ADMIN_PARAM_WHITELIST,
637 white_list, wl_size);
638 if (r != NCI_HCI_ANY_OK)
639 return r;
640 }
641
642 if (info->se_info.se_status->is_uicc_present) {
643 nfc_add_se(ndev->nfc_dev, ST_NCI_UICC_HOST_ID, NFC_SE_UICC);
644 se_count++;
645 }
646
647 if (info->se_info.se_status->is_ese_present) {
648 nfc_add_se(ndev->nfc_dev, ST_NCI_ESE_HOST_ID, NFC_SE_EMBEDDED);
649 se_count++;
650 }
651
652 return !se_count;
653}
654EXPORT_SYMBOL_GPL(st_nci_discover_se);
655
656int st_nci_se_io(struct nci_dev *ndev, u32 se_idx,
657 u8 *apdu, size_t apdu_length,
658 se_io_cb_t cb, void *cb_context)
659{
660 struct st_nci_info *info = nci_get_drvdata(ndev);
661
662 pr_debug("\n");
663
664 switch (se_idx) {
665 case ST_NCI_ESE_HOST_ID:
666 info->se_info.cb = cb;
667 info->se_info.cb_context = cb_context;
668 mod_timer(&info->se_info.bwi_timer, jiffies +
669 msecs_to_jiffies(info->se_info.wt_timeout));
670 info->se_info.bwi_active = true;
671 return nci_hci_send_event(ndev, ST_NCI_APDU_READER_GATE,
672 ST_NCI_EVT_TRANSMIT_DATA, apdu,
673 apdu_length);
674 default:
675 return -ENODEV;
676 }
677}
678EXPORT_SYMBOL(st_nci_se_io);
679
680static void st_nci_se_wt_timeout(struct timer_list *t)
681{
682
683
684
685
686
687
688
689
690
691
692 u8 param = 0x01;
693 struct st_nci_info *info = from_timer(info, t, se_info.bwi_timer);
694
695 pr_debug("\n");
696
697 info->se_info.bwi_active = false;
698
699 if (!info->se_info.xch_error) {
700 info->se_info.xch_error = true;
701 nci_hci_send_event(info->ndlc->ndev, ST_NCI_APDU_READER_GATE,
702 ST_NCI_EVT_SE_SOFT_RESET, NULL, 0);
703 } else {
704 info->se_info.xch_error = false;
705 nci_hci_send_event(info->ndlc->ndev, ST_NCI_DEVICE_MGNT_GATE,
706 ST_NCI_EVT_SE_HARD_RESET, ¶m, 1);
707 }
708 info->se_info.cb(info->se_info.cb_context, NULL, 0, -ETIME);
709}
710
711static void st_nci_se_activation_timeout(struct timer_list *t)
712{
713 struct st_nci_info *info = from_timer(info, t,
714 se_info.se_active_timer);
715
716 pr_debug("\n");
717
718 info->se_info.se_active = false;
719
720 complete(&info->se_info.req_completion);
721}
722
723int st_nci_se_init(struct nci_dev *ndev, struct st_nci_se_status *se_status)
724{
725 struct st_nci_info *info = nci_get_drvdata(ndev);
726
727 init_completion(&info->se_info.req_completion);
728
729 timer_setup(&info->se_info.bwi_timer, st_nci_se_wt_timeout, 0);
730 info->se_info.bwi_active = false;
731
732 timer_setup(&info->se_info.se_active_timer,
733 st_nci_se_activation_timeout, 0);
734 info->se_info.se_active = false;
735
736 info->se_info.xch_error = false;
737
738 info->se_info.wt_timeout =
739 ST_NCI_BWI_TO_TIMEOUT(ST_NCI_ATR_DEFAULT_BWI);
740
741 info->se_info.se_status = se_status;
742
743 return 0;
744}
745EXPORT_SYMBOL(st_nci_se_init);
746
747void st_nci_se_deinit(struct nci_dev *ndev)
748{
749 struct st_nci_info *info = nci_get_drvdata(ndev);
750
751 if (info->se_info.bwi_active)
752 del_timer_sync(&info->se_info.bwi_timer);
753 if (info->se_info.se_active)
754 del_timer_sync(&info->se_info.se_active_timer);
755
756 info->se_info.se_active = false;
757 info->se_info.bwi_active = false;
758}
759EXPORT_SYMBOL(st_nci_se_deinit);
760
761