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8#include <linux/module.h>
9#include <linux/nfc.h>
10#include <linux/delay.h>
11#include <net/nfc/nci.h>
12#include <net/nfc/nci_core.h>
13
14#include "st-nci.h"
15
16struct st_nci_pipe_info {
17 u8 pipe_state;
18 u8 src_host_id;
19 u8 src_gate_id;
20 u8 dst_host_id;
21 u8 dst_gate_id;
22} __packed;
23
24
25#define ST_NCI_HOST_CONTROLLER_ID 0x00
26#define ST_NCI_TERMINAL_HOST_ID 0x01
27#define ST_NCI_UICC_HOST_ID 0x02
28#define ST_NCI_ESE_HOST_ID 0xc0
29
30
31#define ST_NCI_APDU_READER_GATE 0xf0
32#define ST_NCI_CONNECTIVITY_GATE 0x41
33
34
35#define ST_NCI_DEVICE_MGNT_PIPE 0x02
36
37
38#define ST_NCI_SE_COUNT_PIPE_UICC 0x01
39
40#define ST_NCI_SE_COUNT_PIPE_EMBEDDED 0x02
41
42#define ST_NCI_SE_TO_HOT_PLUG 1000
43#define ST_NCI_SE_TO_PIPES 2000
44
45#define ST_NCI_EVT_HOT_PLUG_IS_INHIBITED(x) (x->data[0] & 0x80)
46
47#define NCI_HCI_APDU_PARAM_ATR 0x01
48#define NCI_HCI_ADMIN_PARAM_SESSION_IDENTITY 0x01
49#define NCI_HCI_ADMIN_PARAM_WHITELIST 0x03
50#define NCI_HCI_ADMIN_PARAM_HOST_LIST 0x04
51
52#define ST_NCI_EVT_SE_HARD_RESET 0x20
53#define ST_NCI_EVT_TRANSMIT_DATA 0x10
54#define ST_NCI_EVT_WTX_REQUEST 0x11
55#define ST_NCI_EVT_SE_SOFT_RESET 0x11
56#define ST_NCI_EVT_SE_END_OF_APDU_TRANSFER 0x21
57#define ST_NCI_EVT_HOT_PLUG 0x03
58
59#define ST_NCI_SE_MODE_OFF 0x00
60#define ST_NCI_SE_MODE_ON 0x01
61
62#define ST_NCI_EVT_CONNECTIVITY 0x10
63#define ST_NCI_EVT_TRANSACTION 0x12
64
65#define ST_NCI_DM_GETINFO 0x13
66#define ST_NCI_DM_GETINFO_PIPE_LIST 0x02
67#define ST_NCI_DM_GETINFO_PIPE_INFO 0x01
68#define ST_NCI_DM_PIPE_CREATED 0x02
69#define ST_NCI_DM_PIPE_OPEN 0x04
70#define ST_NCI_DM_RF_ACTIVE 0x80
71#define ST_NCI_DM_DISCONNECT 0x30
72
73#define ST_NCI_DM_IS_PIPE_OPEN(p) \
74 ((p & 0x0f) == (ST_NCI_DM_PIPE_CREATED | ST_NCI_DM_PIPE_OPEN))
75
76#define ST_NCI_ATR_DEFAULT_BWI 0x04
77
78
79
80
81
82#define ST_NCI_BWI_TO_TIMEOUT(x) ((1 << x) * 200)
83#define ST_NCI_ATR_GET_Y_FROM_TD(x) (x >> 4)
84
85
86#define ST_NCI_ATR_TA_PRESENT(x) (x & 0x01)
87
88#define ST_NCI_ATR_TB_PRESENT(x) (x & 0x02)
89
90#define ST_NCI_NUM_DEVICES 256
91
92static DECLARE_BITMAP(dev_mask, ST_NCI_NUM_DEVICES);
93
94
95static struct nci_hci_gate st_nci_gates[] = {
96 {NCI_HCI_ADMIN_GATE, NCI_HCI_ADMIN_PIPE,
97 ST_NCI_HOST_CONTROLLER_ID},
98 {NCI_HCI_LINK_MGMT_GATE, NCI_HCI_LINK_MGMT_PIPE,
99 ST_NCI_HOST_CONTROLLER_ID},
100 {ST_NCI_DEVICE_MGNT_GATE, ST_NCI_DEVICE_MGNT_PIPE,
101 ST_NCI_HOST_CONTROLLER_ID},
102
103 {NCI_HCI_IDENTITY_MGMT_GATE, NCI_HCI_INVALID_PIPE,
104 ST_NCI_HOST_CONTROLLER_ID},
105
106
107 {ST_NCI_CONNECTIVITY_GATE, NCI_HCI_DO_NOT_OPEN_PIPE,
108 ST_NCI_HOST_CONTROLLER_ID},
109 {ST_NCI_APDU_READER_GATE, NCI_HCI_DO_NOT_OPEN_PIPE,
110 ST_NCI_HOST_CONTROLLER_ID},
111};
112
113static u8 st_nci_se_get_bwi(struct nci_dev *ndev)
114{
115 int i;
116 u8 td;
117 struct st_nci_info *info = nci_get_drvdata(ndev);
118
119
120 for (i = 1; i < ST_NCI_ESE_MAX_LENGTH; i++) {
121 td = ST_NCI_ATR_GET_Y_FROM_TD(info->se_info.atr[i]);
122 if (ST_NCI_ATR_TA_PRESENT(td))
123 i++;
124 if (ST_NCI_ATR_TB_PRESENT(td)) {
125 i++;
126 return info->se_info.atr[i] >> 4;
127 }
128 }
129 return ST_NCI_ATR_DEFAULT_BWI;
130}
131
132static void st_nci_se_get_atr(struct nci_dev *ndev)
133{
134 struct st_nci_info *info = nci_get_drvdata(ndev);
135 int r;
136 struct sk_buff *skb;
137
138 r = nci_hci_get_param(ndev, ST_NCI_APDU_READER_GATE,
139 NCI_HCI_APDU_PARAM_ATR, &skb);
140 if (r < 0)
141 return;
142
143 if (skb->len <= ST_NCI_ESE_MAX_LENGTH) {
144 memcpy(info->se_info.atr, skb->data, skb->len);
145
146 info->se_info.wt_timeout =
147 ST_NCI_BWI_TO_TIMEOUT(st_nci_se_get_bwi(ndev));
148 }
149 kfree_skb(skb);
150}
151
152int st_nci_hci_load_session(struct nci_dev *ndev)
153{
154 int i, j, r;
155 struct sk_buff *skb_pipe_list, *skb_pipe_info;
156 struct st_nci_pipe_info *dm_pipe_info;
157 u8 pipe_list[] = { ST_NCI_DM_GETINFO_PIPE_LIST,
158 ST_NCI_TERMINAL_HOST_ID};
159 u8 pipe_info[] = { ST_NCI_DM_GETINFO_PIPE_INFO,
160 ST_NCI_TERMINAL_HOST_ID, 0};
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178 r = nci_hci_connect_gate(ndev, ST_NCI_HOST_CONTROLLER_ID,
179 ST_NCI_DEVICE_MGNT_GATE,
180 ST_NCI_DEVICE_MGNT_PIPE);
181 if (r < 0)
182 return r;
183
184
185 r = nci_hci_send_cmd(ndev, ST_NCI_DEVICE_MGNT_GATE,
186 ST_NCI_DM_GETINFO, pipe_list, sizeof(pipe_list),
187 &skb_pipe_list);
188 if (r < 0)
189 return r;
190
191
192 for (i = 0; i < skb_pipe_list->len; i++) {
193 pipe_info[2] = skb_pipe_list->data[i];
194 r = nci_hci_send_cmd(ndev, ST_NCI_DEVICE_MGNT_GATE,
195 ST_NCI_DM_GETINFO, pipe_info,
196 sizeof(pipe_info), &skb_pipe_info);
197
198 if (r)
199 continue;
200
201
202
203
204
205
206
207
208
209
210 dm_pipe_info = (struct st_nci_pipe_info *)skb_pipe_info->data;
211 if (dm_pipe_info->dst_gate_id == ST_NCI_APDU_READER_GATE &&
212 dm_pipe_info->src_host_id == ST_NCI_UICC_HOST_ID) {
213 pr_err("Unexpected apdu_reader pipe on host %x\n",
214 dm_pipe_info->src_host_id);
215 kfree_skb(skb_pipe_info);
216 continue;
217 }
218
219 for (j = 3; (j < ARRAY_SIZE(st_nci_gates)) &&
220 (st_nci_gates[j].gate != dm_pipe_info->dst_gate_id); j++)
221 ;
222
223 if (j < ARRAY_SIZE(st_nci_gates) &&
224 st_nci_gates[j].gate == dm_pipe_info->dst_gate_id &&
225 ST_NCI_DM_IS_PIPE_OPEN(dm_pipe_info->pipe_state)) {
226 ndev->hci_dev->init_data.gates[j].pipe = pipe_info[2];
227
228 ndev->hci_dev->gate2pipe[st_nci_gates[j].gate] =
229 pipe_info[2];
230 ndev->hci_dev->pipes[pipe_info[2]].gate =
231 st_nci_gates[j].gate;
232 ndev->hci_dev->pipes[pipe_info[2]].host =
233 dm_pipe_info->src_host_id;
234 }
235 kfree_skb(skb_pipe_info);
236 }
237
238
239
240
241
242 r = nci_hci_connect_gate(ndev, ST_NCI_HOST_CONTROLLER_ID,
243 NCI_HCI_LINK_MGMT_GATE,
244 NCI_HCI_LINK_MGMT_PIPE);
245
246 kfree_skb(skb_pipe_list);
247 return r;
248}
249EXPORT_SYMBOL_GPL(st_nci_hci_load_session);
250
251static void st_nci_hci_admin_event_received(struct nci_dev *ndev,
252 u8 event, struct sk_buff *skb)
253{
254 struct st_nci_info *info = nci_get_drvdata(ndev);
255
256 switch (event) {
257 case ST_NCI_EVT_HOT_PLUG:
258 if (info->se_info.se_active) {
259 if (!ST_NCI_EVT_HOT_PLUG_IS_INHIBITED(skb)) {
260 del_timer_sync(&info->se_info.se_active_timer);
261 info->se_info.se_active = false;
262 complete(&info->se_info.req_completion);
263 } else {
264 mod_timer(&info->se_info.se_active_timer,
265 jiffies +
266 msecs_to_jiffies(ST_NCI_SE_TO_PIPES));
267 }
268 }
269 break;
270 default:
271 nfc_err(&ndev->nfc_dev->dev, "Unexpected event on admin gate\n");
272 }
273}
274
275static int st_nci_hci_apdu_reader_event_received(struct nci_dev *ndev,
276 u8 event,
277 struct sk_buff *skb)
278{
279 struct st_nci_info *info = nci_get_drvdata(ndev);
280
281 pr_debug("apdu reader gate event: %x\n", event);
282
283 switch (event) {
284 case ST_NCI_EVT_TRANSMIT_DATA:
285 del_timer_sync(&info->se_info.bwi_timer);
286 info->se_info.bwi_active = false;
287 info->se_info.cb(info->se_info.cb_context,
288 skb->data, skb->len, 0);
289 break;
290 case ST_NCI_EVT_WTX_REQUEST:
291 mod_timer(&info->se_info.bwi_timer, jiffies +
292 msecs_to_jiffies(info->se_info.wt_timeout));
293 break;
294 default:
295 nfc_err(&ndev->nfc_dev->dev, "Unexpected event on apdu reader gate\n");
296 return 1;
297 }
298
299 kfree_skb(skb);
300 return 0;
301}
302
303
304
305
306
307
308static int st_nci_hci_connectivity_event_received(struct nci_dev *ndev,
309 u8 host, u8 event,
310 struct sk_buff *skb)
311{
312 int r = 0;
313 struct device *dev = &ndev->nfc_dev->dev;
314 struct nfc_evt_transaction *transaction;
315
316 pr_debug("connectivity gate event: %x\n", event);
317
318 switch (event) {
319 case ST_NCI_EVT_CONNECTIVITY:
320 r = nfc_se_connectivity(ndev->nfc_dev, host);
321 break;
322 case ST_NCI_EVT_TRANSACTION:
323
324
325
326
327
328
329 if (skb->len < NFC_MIN_AID_LENGTH + 2 &&
330 skb->data[0] != NFC_EVT_TRANSACTION_AID_TAG)
331 return -EPROTO;
332
333 transaction = devm_kzalloc(dev, skb->len - 2, GFP_KERNEL);
334 if (!transaction)
335 return -ENOMEM;
336
337 transaction->aid_len = skb->data[1];
338 memcpy(transaction->aid, &skb->data[2], transaction->aid_len);
339
340
341 if (skb->data[transaction->aid_len + 2] !=
342 NFC_EVT_TRANSACTION_PARAMS_TAG)
343 return -EPROTO;
344
345 transaction->params_len = skb->data[transaction->aid_len + 3];
346 memcpy(transaction->params, skb->data +
347 transaction->aid_len + 4, transaction->params_len);
348
349 r = nfc_se_transaction(ndev->nfc_dev, host, transaction);
350 break;
351 default:
352 nfc_err(&ndev->nfc_dev->dev, "Unexpected event on connectivity gate\n");
353 return 1;
354 }
355 kfree_skb(skb);
356 return r;
357}
358
359void st_nci_hci_event_received(struct nci_dev *ndev, u8 pipe,
360 u8 event, struct sk_buff *skb)
361{
362 u8 gate = ndev->hci_dev->pipes[pipe].gate;
363 u8 host = ndev->hci_dev->pipes[pipe].host;
364
365 switch (gate) {
366 case NCI_HCI_ADMIN_GATE:
367 st_nci_hci_admin_event_received(ndev, event, skb);
368 break;
369 case ST_NCI_APDU_READER_GATE:
370 st_nci_hci_apdu_reader_event_received(ndev, event, skb);
371 break;
372 case ST_NCI_CONNECTIVITY_GATE:
373 st_nci_hci_connectivity_event_received(ndev, host, event, skb);
374 break;
375 }
376}
377EXPORT_SYMBOL_GPL(st_nci_hci_event_received);
378
379void st_nci_hci_cmd_received(struct nci_dev *ndev, u8 pipe, u8 cmd,
380 struct sk_buff *skb)
381{
382 struct st_nci_info *info = nci_get_drvdata(ndev);
383 u8 gate = ndev->hci_dev->pipes[pipe].gate;
384
385 pr_debug("cmd: %x\n", cmd);
386
387 switch (cmd) {
388 case NCI_HCI_ANY_OPEN_PIPE:
389 if (gate != ST_NCI_APDU_READER_GATE &&
390 ndev->hci_dev->pipes[pipe].host != ST_NCI_UICC_HOST_ID)
391 ndev->hci_dev->count_pipes++;
392
393 if (ndev->hci_dev->count_pipes ==
394 ndev->hci_dev->expected_pipes) {
395 del_timer_sync(&info->se_info.se_active_timer);
396 info->se_info.se_active = false;
397 ndev->hci_dev->count_pipes = 0;
398 complete(&info->se_info.req_completion);
399 }
400 break;
401 }
402}
403EXPORT_SYMBOL_GPL(st_nci_hci_cmd_received);
404
405static int st_nci_control_se(struct nci_dev *ndev, u8 se_idx,
406 u8 state)
407{
408 struct st_nci_info *info = nci_get_drvdata(ndev);
409 int r, i;
410 struct sk_buff *sk_host_list;
411 u8 host_id;
412
413 switch (se_idx) {
414 case ST_NCI_UICC_HOST_ID:
415 ndev->hci_dev->count_pipes = 0;
416 ndev->hci_dev->expected_pipes = ST_NCI_SE_COUNT_PIPE_UICC;
417 break;
418 case ST_NCI_ESE_HOST_ID:
419 ndev->hci_dev->count_pipes = 0;
420 ndev->hci_dev->expected_pipes = ST_NCI_SE_COUNT_PIPE_EMBEDDED;
421 break;
422 default:
423 return -EINVAL;
424 }
425
426
427
428
429
430 reinit_completion(&info->se_info.req_completion);
431 r = nci_nfcee_mode_set(ndev, se_idx, state);
432 if (r != NCI_STATUS_OK)
433 return r;
434
435 mod_timer(&info->se_info.se_active_timer, jiffies +
436 msecs_to_jiffies(ST_NCI_SE_TO_HOT_PLUG));
437 info->se_info.se_active = true;
438
439
440 wait_for_completion_interruptible(&info->se_info.req_completion);
441
442
443
444
445
446
447 if (info->se_info.se_status->is_ese_present &&
448 info->se_info.se_status->is_uicc_present)
449 usleep_range(15000, 20000);
450
451 r = nci_hci_get_param(ndev, NCI_HCI_ADMIN_GATE,
452 NCI_HCI_ADMIN_PARAM_HOST_LIST, &sk_host_list);
453 if (r != NCI_HCI_ANY_OK)
454 return r;
455
456 for (i = 0; i < sk_host_list->len &&
457 sk_host_list->data[i] != se_idx; i++)
458 ;
459 host_id = sk_host_list->data[i];
460 kfree_skb(sk_host_list);
461 if (state == ST_NCI_SE_MODE_ON && host_id == se_idx)
462 return se_idx;
463 else if (state == ST_NCI_SE_MODE_OFF && host_id != se_idx)
464 return se_idx;
465
466 return -1;
467}
468
469int st_nci_disable_se(struct nci_dev *ndev, u32 se_idx)
470{
471 int r;
472
473 pr_debug("st_nci_disable_se\n");
474
475
476
477
478
479
480 r = st_nci_control_se(ndev, se_idx, ST_NCI_SE_MODE_OFF);
481 if (r < 0) {
482
483 if (se_idx == NFC_SE_EMBEDDED) {
484 r = nci_hci_send_event(ndev, ST_NCI_APDU_READER_GATE,
485 ST_NCI_EVT_SE_END_OF_APDU_TRANSFER,
486 NULL, 0);
487 }
488 return r;
489 }
490
491 return 0;
492}
493EXPORT_SYMBOL_GPL(st_nci_disable_se);
494
495int st_nci_enable_se(struct nci_dev *ndev, u32 se_idx)
496{
497 int r;
498
499 pr_debug("st_nci_enable_se\n");
500
501
502
503
504
505
506 r = st_nci_control_se(ndev, se_idx, ST_NCI_SE_MODE_ON);
507 if (r == ST_NCI_ESE_HOST_ID) {
508 st_nci_se_get_atr(ndev);
509 r = nci_hci_send_event(ndev, ST_NCI_APDU_READER_GATE,
510 ST_NCI_EVT_SE_SOFT_RESET, NULL, 0);
511 }
512
513 if (r < 0) {
514
515
516
517
518 nfc_remove_se(ndev->nfc_dev, se_idx);
519 return r;
520 }
521
522 return 0;
523}
524EXPORT_SYMBOL_GPL(st_nci_enable_se);
525
526static int st_nci_hci_network_init(struct nci_dev *ndev)
527{
528 struct st_nci_info *info = nci_get_drvdata(ndev);
529 struct core_conn_create_dest_spec_params *dest_params;
530 struct dest_spec_params spec_params;
531 struct nci_conn_info *conn_info;
532 int r, dev_num;
533
534 dest_params =
535 kzalloc(sizeof(struct core_conn_create_dest_spec_params) +
536 sizeof(struct dest_spec_params), GFP_KERNEL);
537 if (dest_params == NULL) {
538 r = -ENOMEM;
539 goto exit;
540 }
541
542 dest_params->type = NCI_DESTINATION_SPECIFIC_PARAM_NFCEE_TYPE;
543 dest_params->length = sizeof(struct dest_spec_params);
544 spec_params.id = ndev->hci_dev->nfcee_id;
545 spec_params.protocol = NCI_NFCEE_INTERFACE_HCI_ACCESS;
546 memcpy(dest_params->value, &spec_params,
547 sizeof(struct dest_spec_params));
548 r = nci_core_conn_create(ndev, NCI_DESTINATION_NFCEE, 1,
549 sizeof(struct core_conn_create_dest_spec_params) +
550 sizeof(struct dest_spec_params),
551 dest_params);
552 if (r != NCI_STATUS_OK)
553 goto free_dest_params;
554
555 conn_info = ndev->hci_dev->conn_info;
556 if (!conn_info)
557 goto free_dest_params;
558
559 ndev->hci_dev->init_data.gate_count = ARRAY_SIZE(st_nci_gates);
560 memcpy(ndev->hci_dev->init_data.gates, st_nci_gates,
561 sizeof(st_nci_gates));
562
563
564
565
566
567 dev_num = find_first_zero_bit(dev_mask, ST_NCI_NUM_DEVICES);
568 if (dev_num >= ST_NCI_NUM_DEVICES) {
569 r = -ENODEV;
570 goto free_dest_params;
571 }
572
573 scnprintf(ndev->hci_dev->init_data.session_id,
574 sizeof(ndev->hci_dev->init_data.session_id),
575 "%s%2x", "ST21BH", dev_num);
576
577 r = nci_hci_dev_session_init(ndev);
578 if (r != NCI_HCI_ANY_OK)
579 goto free_dest_params;
580
581
582
583
584
585
586 if (test_bit(ST_NCI_FACTORY_MODE, &info->flags))
587 r = nci_nfcee_mode_set(ndev,
588 ndev->hci_dev->conn_info->dest_params->id,
589 NCI_NFCEE_DISABLE);
590 else
591 r = nci_nfcee_mode_set(ndev,
592 ndev->hci_dev->conn_info->dest_params->id,
593 NCI_NFCEE_ENABLE);
594
595free_dest_params:
596 kfree(dest_params);
597
598exit:
599 return r;
600}
601
602int st_nci_discover_se(struct nci_dev *ndev)
603{
604 u8 white_list[2];
605 int r, wl_size = 0;
606 int se_count = 0;
607 struct st_nci_info *info = nci_get_drvdata(ndev);
608
609 pr_debug("st_nci_discover_se\n");
610
611 r = st_nci_hci_network_init(ndev);
612 if (r != 0)
613 return r;
614
615 if (test_bit(ST_NCI_FACTORY_MODE, &info->flags))
616 return 0;
617
618 if (info->se_info.se_status->is_uicc_present)
619 white_list[wl_size++] = ST_NCI_UICC_HOST_ID;
620 if (info->se_info.se_status->is_ese_present)
621 white_list[wl_size++] = ST_NCI_ESE_HOST_ID;
622
623 if (wl_size) {
624 r = nci_hci_set_param(ndev, NCI_HCI_ADMIN_GATE,
625 NCI_HCI_ADMIN_PARAM_WHITELIST,
626 white_list, wl_size);
627 if (r != NCI_HCI_ANY_OK)
628 return r;
629 }
630
631 if (info->se_info.se_status->is_uicc_present) {
632 nfc_add_se(ndev->nfc_dev, ST_NCI_UICC_HOST_ID, NFC_SE_UICC);
633 se_count++;
634 }
635
636 if (info->se_info.se_status->is_ese_present) {
637 nfc_add_se(ndev->nfc_dev, ST_NCI_ESE_HOST_ID, NFC_SE_EMBEDDED);
638 se_count++;
639 }
640
641 return !se_count;
642}
643EXPORT_SYMBOL_GPL(st_nci_discover_se);
644
645int st_nci_se_io(struct nci_dev *ndev, u32 se_idx,
646 u8 *apdu, size_t apdu_length,
647 se_io_cb_t cb, void *cb_context)
648{
649 struct st_nci_info *info = nci_get_drvdata(ndev);
650
651 pr_debug("\n");
652
653 switch (se_idx) {
654 case ST_NCI_ESE_HOST_ID:
655 info->se_info.cb = cb;
656 info->se_info.cb_context = cb_context;
657 mod_timer(&info->se_info.bwi_timer, jiffies +
658 msecs_to_jiffies(info->se_info.wt_timeout));
659 info->se_info.bwi_active = true;
660 return nci_hci_send_event(ndev, ST_NCI_APDU_READER_GATE,
661 ST_NCI_EVT_TRANSMIT_DATA, apdu,
662 apdu_length);
663 default:
664 return -ENODEV;
665 }
666}
667EXPORT_SYMBOL(st_nci_se_io);
668
669static void st_nci_se_wt_timeout(struct timer_list *t)
670{
671
672
673
674
675
676
677
678
679
680
681 u8 param = 0x01;
682 struct st_nci_info *info = from_timer(info, t, se_info.bwi_timer);
683
684 pr_debug("\n");
685
686 info->se_info.bwi_active = false;
687
688 if (!info->se_info.xch_error) {
689 info->se_info.xch_error = true;
690 nci_hci_send_event(info->ndlc->ndev, ST_NCI_APDU_READER_GATE,
691 ST_NCI_EVT_SE_SOFT_RESET, NULL, 0);
692 } else {
693 info->se_info.xch_error = false;
694 nci_hci_send_event(info->ndlc->ndev, ST_NCI_DEVICE_MGNT_GATE,
695 ST_NCI_EVT_SE_HARD_RESET, ¶m, 1);
696 }
697 info->se_info.cb(info->se_info.cb_context, NULL, 0, -ETIME);
698}
699
700static void st_nci_se_activation_timeout(struct timer_list *t)
701{
702 struct st_nci_info *info = from_timer(info, t,
703 se_info.se_active_timer);
704
705 pr_debug("\n");
706
707 info->se_info.se_active = false;
708
709 complete(&info->se_info.req_completion);
710}
711
712int st_nci_se_init(struct nci_dev *ndev, struct st_nci_se_status *se_status)
713{
714 struct st_nci_info *info = nci_get_drvdata(ndev);
715
716 init_completion(&info->se_info.req_completion);
717
718 timer_setup(&info->se_info.bwi_timer, st_nci_se_wt_timeout, 0);
719 info->se_info.bwi_active = false;
720
721 timer_setup(&info->se_info.se_active_timer,
722 st_nci_se_activation_timeout, 0);
723 info->se_info.se_active = false;
724
725 info->se_info.xch_error = false;
726
727 info->se_info.wt_timeout =
728 ST_NCI_BWI_TO_TIMEOUT(ST_NCI_ATR_DEFAULT_BWI);
729
730 info->se_info.se_status = se_status;
731
732 return 0;
733}
734EXPORT_SYMBOL(st_nci_se_init);
735
736void st_nci_se_deinit(struct nci_dev *ndev)
737{
738 struct st_nci_info *info = nci_get_drvdata(ndev);
739
740 if (info->se_info.bwi_active)
741 del_timer_sync(&info->se_info.bwi_timer);
742 if (info->se_info.se_active)
743 del_timer_sync(&info->se_info.se_active_timer);
744
745 info->se_info.se_active = false;
746 info->se_info.bwi_active = false;
747}
748EXPORT_SYMBOL(st_nci_se_deinit);
749
750