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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 {NCI_HCI_LOOPBACK_GATE, NCI_HCI_INVALID_PIPE,
117 ST_NCI_HOST_CONTROLLER_ID},
118
119
120 {ST_NCI_CONNECTIVITY_GATE, NCI_HCI_DO_NOT_OPEN_PIPE,
121 ST_NCI_HOST_CONTROLLER_ID},
122 {ST_NCI_APDU_READER_GATE, NCI_HCI_DO_NOT_OPEN_PIPE,
123 ST_NCI_HOST_CONTROLLER_ID},
124};
125
126static u8 st_nci_se_get_bwi(struct nci_dev *ndev)
127{
128 int i;
129 u8 td;
130 struct st_nci_info *info = nci_get_drvdata(ndev);
131
132
133 for (i = 1; i < ST_NCI_ESE_MAX_LENGTH; i++) {
134 td = ST_NCI_ATR_GET_Y_FROM_TD(info->se_info.atr[i]);
135 if (ST_NCI_ATR_TA_PRESENT(td))
136 i++;
137 if (ST_NCI_ATR_TB_PRESENT(td)) {
138 i++;
139 return info->se_info.atr[i] >> 4;
140 }
141 }
142 return ST_NCI_ATR_DEFAULT_BWI;
143}
144
145static void st_nci_se_get_atr(struct nci_dev *ndev)
146{
147 struct st_nci_info *info = nci_get_drvdata(ndev);
148 int r;
149 struct sk_buff *skb;
150
151 r = nci_hci_get_param(ndev, ST_NCI_APDU_READER_GATE,
152 NCI_HCI_APDU_PARAM_ATR, &skb);
153 if (r < 0)
154 return;
155
156 if (skb->len <= ST_NCI_ESE_MAX_LENGTH) {
157 memcpy(info->se_info.atr, skb->data, skb->len);
158
159 info->se_info.wt_timeout =
160 ST_NCI_BWI_TO_TIMEOUT(st_nci_se_get_bwi(ndev));
161 }
162 kfree_skb(skb);
163}
164
165int st_nci_hci_load_session(struct nci_dev *ndev)
166{
167 int i, j, r;
168 struct sk_buff *skb_pipe_list, *skb_pipe_info;
169 struct st_nci_pipe_info *dm_pipe_info;
170 u8 pipe_list[] = { ST_NCI_DM_GETINFO_PIPE_LIST,
171 ST_NCI_TERMINAL_HOST_ID};
172 u8 pipe_info[] = { ST_NCI_DM_GETINFO_PIPE_INFO,
173 ST_NCI_TERMINAL_HOST_ID, 0};
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191 r = nci_hci_connect_gate(ndev, ST_NCI_HOST_CONTROLLER_ID,
192 ST_NCI_DEVICE_MGNT_GATE,
193 ST_NCI_DEVICE_MGNT_PIPE);
194 if (r < 0)
195 return r;
196
197
198 r = nci_hci_send_cmd(ndev, ST_NCI_DEVICE_MGNT_GATE,
199 ST_NCI_DM_GETINFO, pipe_list, sizeof(pipe_list),
200 &skb_pipe_list);
201 if (r < 0)
202 return r;
203
204
205 for (i = 0; i < skb_pipe_list->len; i++) {
206 pipe_info[2] = skb_pipe_list->data[i];
207 r = nci_hci_send_cmd(ndev, ST_NCI_DEVICE_MGNT_GATE,
208 ST_NCI_DM_GETINFO, pipe_info,
209 sizeof(pipe_info), &skb_pipe_info);
210
211 if (r)
212 continue;
213
214
215
216
217
218
219
220
221
222
223 dm_pipe_info = (struct st_nci_pipe_info *)skb_pipe_info->data;
224 if (dm_pipe_info->dst_gate_id == ST_NCI_APDU_READER_GATE &&
225 dm_pipe_info->src_host_id != ST_NCI_ESE_HOST_ID) {
226 pr_err("Unexpected apdu_reader pipe on host %x\n",
227 dm_pipe_info->src_host_id);
228 kfree_skb(skb_pipe_info);
229 continue;
230 }
231
232 for (j = 3; (j < ARRAY_SIZE(st_nci_gates)) &&
233 (st_nci_gates[j].gate != dm_pipe_info->dst_gate_id); j++)
234 ;
235
236 if (j < ARRAY_SIZE(st_nci_gates) &&
237 st_nci_gates[j].gate == dm_pipe_info->dst_gate_id &&
238 ST_NCI_DM_IS_PIPE_OPEN(dm_pipe_info->pipe_state)) {
239 ndev->hci_dev->init_data.gates[j].pipe = pipe_info[2];
240
241 ndev->hci_dev->gate2pipe[st_nci_gates[j].gate] =
242 pipe_info[2];
243 ndev->hci_dev->pipes[pipe_info[2]].gate =
244 st_nci_gates[j].gate;
245 ndev->hci_dev->pipes[pipe_info[2]].host =
246 dm_pipe_info->src_host_id;
247 }
248 kfree_skb(skb_pipe_info);
249 }
250
251
252
253
254
255 r = nci_hci_connect_gate(ndev, ST_NCI_HOST_CONTROLLER_ID,
256 NCI_HCI_LINK_MGMT_GATE,
257 NCI_HCI_LINK_MGMT_PIPE);
258
259 kfree_skb(skb_pipe_list);
260 return r;
261}
262EXPORT_SYMBOL_GPL(st_nci_hci_load_session);
263
264static void st_nci_hci_admin_event_received(struct nci_dev *ndev,
265 u8 event, struct sk_buff *skb)
266{
267 struct st_nci_info *info = nci_get_drvdata(ndev);
268
269 switch (event) {
270 case ST_NCI_EVT_HOT_PLUG:
271 if (info->se_info.se_active) {
272 if (!ST_NCI_EVT_HOT_PLUG_IS_INHIBITED(skb)) {
273 del_timer_sync(&info->se_info.se_active_timer);
274 info->se_info.se_active = false;
275 complete(&info->se_info.req_completion);
276 } else {
277 mod_timer(&info->se_info.se_active_timer,
278 jiffies +
279 msecs_to_jiffies(ST_NCI_SE_TO_PIPES));
280 }
281 }
282 break;
283 default:
284 nfc_err(&ndev->nfc_dev->dev, "Unexpected event on admin gate\n");
285 }
286}
287
288static int st_nci_hci_apdu_reader_event_received(struct nci_dev *ndev,
289 u8 event,
290 struct sk_buff *skb)
291{
292 int r = 0;
293 struct st_nci_info *info = nci_get_drvdata(ndev);
294
295 pr_debug("apdu reader gate event: %x\n", event);
296
297 switch (event) {
298 case ST_NCI_EVT_TRANSMIT_DATA:
299 del_timer_sync(&info->se_info.bwi_timer);
300 info->se_info.bwi_active = false;
301 info->se_info.cb(info->se_info.cb_context,
302 skb->data, skb->len, 0);
303 break;
304 case ST_NCI_EVT_WTX_REQUEST:
305 mod_timer(&info->se_info.bwi_timer, jiffies +
306 msecs_to_jiffies(info->se_info.wt_timeout));
307 break;
308 default:
309 nfc_err(&ndev->nfc_dev->dev, "Unexpected event on apdu reader gate\n");
310 return 1;
311 }
312
313 kfree_skb(skb);
314 return r;
315}
316
317
318
319
320
321
322static int st_nci_hci_connectivity_event_received(struct nci_dev *ndev,
323 u8 host, u8 event,
324 struct sk_buff *skb)
325{
326 int r = 0;
327 struct device *dev = &ndev->nfc_dev->dev;
328 struct nfc_evt_transaction *transaction;
329
330 pr_debug("connectivity gate event: %x\n", event);
331
332 switch (event) {
333 case ST_NCI_EVT_CONNECTIVITY:
334 r = nfc_se_connectivity(ndev->nfc_dev, host);
335 break;
336 case ST_NCI_EVT_TRANSACTION:
337
338
339
340
341
342
343 if (skb->len < NFC_MIN_AID_LENGTH + 2 &&
344 skb->data[0] != NFC_EVT_TRANSACTION_AID_TAG)
345 return -EPROTO;
346
347 transaction = (struct nfc_evt_transaction *)devm_kzalloc(dev,
348 skb->len - 2, GFP_KERNEL);
349
350 transaction->aid_len = skb->data[1];
351 memcpy(transaction->aid, &skb->data[2], transaction->aid_len);
352
353
354 if (skb->data[transaction->aid_len + 2] !=
355 NFC_EVT_TRANSACTION_PARAMS_TAG)
356 return -EPROTO;
357
358 transaction->params_len = skb->data[transaction->aid_len + 3];
359 memcpy(transaction->params, skb->data +
360 transaction->aid_len + 4, transaction->params_len);
361
362 r = nfc_se_transaction(ndev->nfc_dev, host, transaction);
363 break;
364 default:
365 nfc_err(&ndev->nfc_dev->dev, "Unexpected event on connectivity gate\n");
366 return 1;
367 }
368 kfree_skb(skb);
369 return r;
370}
371
372void st_nci_hci_event_received(struct nci_dev *ndev, u8 pipe,
373 u8 event, struct sk_buff *skb)
374{
375 u8 gate = ndev->hci_dev->pipes[pipe].gate;
376 u8 host = ndev->hci_dev->pipes[pipe].host;
377
378 switch (gate) {
379 case NCI_HCI_ADMIN_GATE:
380 st_nci_hci_admin_event_received(ndev, event, skb);
381 break;
382 case ST_NCI_APDU_READER_GATE:
383 st_nci_hci_apdu_reader_event_received(ndev, event, skb);
384 break;
385 case ST_NCI_CONNECTIVITY_GATE:
386 st_nci_hci_connectivity_event_received(ndev, host, event, skb);
387 break;
388 case NCI_HCI_LOOPBACK_GATE:
389 st_nci_hci_loopback_event_received(ndev, event, skb);
390 break;
391 }
392}
393EXPORT_SYMBOL_GPL(st_nci_hci_event_received);
394
395void st_nci_hci_cmd_received(struct nci_dev *ndev, u8 pipe, u8 cmd,
396 struct sk_buff *skb)
397{
398 struct st_nci_info *info = nci_get_drvdata(ndev);
399 u8 gate = ndev->hci_dev->pipes[pipe].gate;
400
401 pr_debug("cmd: %x\n", cmd);
402
403 switch (cmd) {
404 case NCI_HCI_ANY_OPEN_PIPE:
405 if (gate != ST_NCI_APDU_READER_GATE &&
406 ndev->hci_dev->pipes[pipe].host != ST_NCI_UICC_HOST_ID)
407 ndev->hci_dev->count_pipes++;
408
409 if (ndev->hci_dev->count_pipes ==
410 ndev->hci_dev->expected_pipes) {
411 del_timer_sync(&info->se_info.se_active_timer);
412 info->se_info.se_active = false;
413 ndev->hci_dev->count_pipes = 0;
414 complete(&info->se_info.req_completion);
415 }
416 break;
417 }
418}
419EXPORT_SYMBOL_GPL(st_nci_hci_cmd_received);
420
421static int st_nci_control_se(struct nci_dev *ndev, u8 se_idx,
422 u8 state)
423{
424 struct st_nci_info *info = nci_get_drvdata(ndev);
425 int r, i;
426 struct sk_buff *sk_host_list;
427 u8 host_id;
428
429 switch (se_idx) {
430 case ST_NCI_UICC_HOST_ID:
431 ndev->hci_dev->count_pipes = 0;
432 ndev->hci_dev->expected_pipes = ST_NCI_SE_COUNT_PIPE_UICC;
433 break;
434 case ST_NCI_ESE_HOST_ID:
435 ndev->hci_dev->count_pipes = 0;
436 ndev->hci_dev->expected_pipes = ST_NCI_SE_COUNT_PIPE_EMBEDDED;
437 break;
438 default:
439 return -EINVAL;
440 }
441
442
443
444
445
446 reinit_completion(&info->se_info.req_completion);
447 r = nci_nfcee_mode_set(ndev, se_idx, state);
448 if (r != NCI_STATUS_OK)
449 return r;
450
451 mod_timer(&info->se_info.se_active_timer, jiffies +
452 msecs_to_jiffies(ST_NCI_SE_TO_HOT_PLUG));
453 info->se_info.se_active = true;
454
455
456 wait_for_completion_interruptible(&info->se_info.req_completion);
457
458
459
460
461
462
463 if (info->se_info.se_status->is_ese_present &&
464 info->se_info.se_status->is_uicc_present)
465 usleep_range(15000, 20000);
466
467 r = nci_hci_get_param(ndev, NCI_HCI_ADMIN_GATE,
468 NCI_HCI_ADMIN_PARAM_HOST_LIST, &sk_host_list);
469 if (r != NCI_HCI_ANY_OK)
470 return r;
471
472 for (i = 0; i < sk_host_list->len &&
473 sk_host_list->data[i] != se_idx; i++)
474 ;
475 host_id = sk_host_list->data[i];
476 kfree_skb(sk_host_list);
477 if (state == ST_NCI_SE_MODE_ON && host_id == se_idx)
478 return se_idx;
479 else if (state == ST_NCI_SE_MODE_OFF && host_id != se_idx)
480 return se_idx;
481
482 return -1;
483}
484
485int st_nci_disable_se(struct nci_dev *ndev, u32 se_idx)
486{
487 int r;
488
489 pr_debug("st_nci_disable_se\n");
490
491
492
493
494
495
496 r = st_nci_control_se(ndev, se_idx, ST_NCI_SE_MODE_OFF);
497 if (r < 0) {
498
499 if (se_idx == NFC_SE_EMBEDDED) {
500 r = nci_hci_send_event(ndev, ST_NCI_APDU_READER_GATE,
501 ST_NCI_EVT_SE_END_OF_APDU_TRANSFER,
502 NULL, 0);
503 }
504 return r;
505 }
506
507 return 0;
508}
509EXPORT_SYMBOL_GPL(st_nci_disable_se);
510
511int st_nci_enable_se(struct nci_dev *ndev, u32 se_idx)
512{
513 int r;
514
515 pr_debug("st_nci_enable_se\n");
516
517
518
519
520
521
522 r = st_nci_control_se(ndev, se_idx, ST_NCI_SE_MODE_ON);
523 if (r == ST_NCI_HCI_HOST_ID_ESE) {
524 st_nci_se_get_atr(ndev);
525 r = nci_hci_send_event(ndev, ST_NCI_APDU_READER_GATE,
526 ST_NCI_EVT_SE_SOFT_RESET, NULL, 0);
527 }
528
529 if (r < 0) {
530
531
532
533
534 nfc_remove_se(ndev->nfc_dev, se_idx);
535 return r;
536 }
537
538 return 0;
539}
540EXPORT_SYMBOL_GPL(st_nci_enable_se);
541
542static int st_nci_hci_network_init(struct nci_dev *ndev)
543{
544 struct st_nci_info *info = nci_get_drvdata(ndev);
545 struct core_conn_create_dest_spec_params *dest_params;
546 struct dest_spec_params spec_params;
547 struct nci_conn_info *conn_info;
548 int r, dev_num;
549
550 dest_params =
551 kzalloc(sizeof(struct core_conn_create_dest_spec_params) +
552 sizeof(struct dest_spec_params), GFP_KERNEL);
553 if (dest_params == NULL) {
554 r = -ENOMEM;
555 goto exit;
556 }
557
558 dest_params->type = NCI_DESTINATION_SPECIFIC_PARAM_NFCEE_TYPE;
559 dest_params->length = sizeof(struct dest_spec_params);
560 spec_params.id = ndev->hci_dev->nfcee_id;
561 spec_params.protocol = NCI_NFCEE_INTERFACE_HCI_ACCESS;
562 memcpy(dest_params->value, &spec_params,
563 sizeof(struct dest_spec_params));
564 r = nci_core_conn_create(ndev, NCI_DESTINATION_NFCEE, 1,
565 sizeof(struct core_conn_create_dest_spec_params) +
566 sizeof(struct dest_spec_params),
567 dest_params);
568 if (r != NCI_STATUS_OK)
569 goto free_dest_params;
570
571 conn_info = ndev->hci_dev->conn_info;
572 if (!conn_info)
573 goto free_dest_params;
574
575 ndev->hci_dev->init_data.gate_count = ARRAY_SIZE(st_nci_gates);
576 memcpy(ndev->hci_dev->init_data.gates, st_nci_gates,
577 sizeof(st_nci_gates));
578
579
580
581
582
583 dev_num = find_first_zero_bit(dev_mask, ST_NCI_NUM_DEVICES);
584 if (dev_num >= ST_NCI_NUM_DEVICES) {
585 r = -ENODEV;
586 goto free_dest_params;
587 }
588
589 scnprintf(ndev->hci_dev->init_data.session_id,
590 sizeof(ndev->hci_dev->init_data.session_id),
591 "%s%2x", "ST21BH", dev_num);
592
593 r = nci_hci_dev_session_init(ndev);
594 if (r != NCI_HCI_ANY_OK)
595 goto free_dest_params;
596
597
598
599
600
601
602 if (test_bit(ST_NCI_FACTORY_MODE, &info->flags))
603 r = nci_nfcee_mode_set(ndev, ndev->hci_dev->conn_info->id,
604 NCI_NFCEE_DISABLE);
605 else
606 r = nci_nfcee_mode_set(ndev, ndev->hci_dev->conn_info->id,
607 NCI_NFCEE_ENABLE);
608
609free_dest_params:
610 kfree(dest_params);
611
612exit:
613 return r;
614}
615
616int st_nci_discover_se(struct nci_dev *ndev)
617{
618 u8 white_list[2];
619 int r, wl_size = 0;
620 int se_count = 0;
621 struct st_nci_info *info = nci_get_drvdata(ndev);
622
623 pr_debug("st_nci_discover_se\n");
624
625 r = st_nci_hci_network_init(ndev);
626 if (r != 0)
627 return r;
628
629 if (test_bit(ST_NCI_FACTORY_MODE, &info->flags))
630 return 0;
631
632 if (info->se_info.se_status->is_ese_present &&
633 info->se_info.se_status->is_uicc_present) {
634 white_list[wl_size++] = ST_NCI_UICC_HOST_ID;
635 white_list[wl_size++] = ST_NCI_ESE_HOST_ID;
636 } else if (!info->se_info.se_status->is_ese_present &&
637 info->se_info.se_status->is_uicc_present) {
638 white_list[wl_size++] = ST_NCI_UICC_HOST_ID;
639 } else if (info->se_info.se_status->is_ese_present &&
640 !info->se_info.se_status->is_uicc_present) {
641 white_list[wl_size++] = ST_NCI_ESE_HOST_ID;
642 }
643
644 if (wl_size) {
645 r = nci_hci_set_param(ndev, NCI_HCI_ADMIN_GATE,
646 NCI_HCI_ADMIN_PARAM_WHITELIST,
647 white_list, wl_size);
648 if (r != NCI_HCI_ANY_OK)
649 return r;
650 }
651
652 if (info->se_info.se_status->is_uicc_present) {
653 nfc_add_se(ndev->nfc_dev, ST_NCI_UICC_HOST_ID, NFC_SE_UICC);
654 se_count++;
655 }
656
657 if (info->se_info.se_status->is_ese_present) {
658 nfc_add_se(ndev->nfc_dev, ST_NCI_ESE_HOST_ID, NFC_SE_EMBEDDED);
659 se_count++;
660 }
661
662 return !se_count;
663}
664EXPORT_SYMBOL_GPL(st_nci_discover_se);
665
666int st_nci_se_io(struct nci_dev *ndev, u32 se_idx,
667 u8 *apdu, size_t apdu_length,
668 se_io_cb_t cb, void *cb_context)
669{
670 struct st_nci_info *info = nci_get_drvdata(ndev);
671
672 pr_debug("\n");
673
674 switch (se_idx) {
675 case ST_NCI_HCI_HOST_ID_ESE:
676 info->se_info.cb = cb;
677 info->se_info.cb_context = cb_context;
678 mod_timer(&info->se_info.bwi_timer, jiffies +
679 msecs_to_jiffies(info->se_info.wt_timeout));
680 info->se_info.bwi_active = true;
681 return nci_hci_send_event(ndev, ST_NCI_APDU_READER_GATE,
682 ST_NCI_EVT_TRANSMIT_DATA, apdu,
683 apdu_length);
684 default:
685 return -ENODEV;
686 }
687}
688EXPORT_SYMBOL(st_nci_se_io);
689
690static void st_nci_se_wt_timeout(unsigned long data)
691{
692
693
694
695
696
697
698
699
700
701
702 u8 param = 0x01;
703 struct st_nci_info *info = (struct st_nci_info *) data;
704
705 pr_debug("\n");
706
707 info->se_info.bwi_active = false;
708
709 if (!info->se_info.xch_error) {
710 info->se_info.xch_error = true;
711 nci_hci_send_event(info->ndlc->ndev, ST_NCI_APDU_READER_GATE,
712 ST_NCI_EVT_SE_SOFT_RESET, NULL, 0);
713 } else {
714 info->se_info.xch_error = false;
715 nci_hci_send_event(info->ndlc->ndev, ST_NCI_DEVICE_MGNT_GATE,
716 ST_NCI_EVT_SE_HARD_RESET, ¶m, 1);
717 }
718 info->se_info.cb(info->se_info.cb_context, NULL, 0, -ETIME);
719}
720
721static void st_nci_se_activation_timeout(unsigned long data)
722{
723 struct st_nci_info *info = (struct st_nci_info *) data;
724
725 pr_debug("\n");
726
727 info->se_info.se_active = false;
728
729 complete(&info->se_info.req_completion);
730}
731
732int st_nci_se_init(struct nci_dev *ndev, struct st_nci_se_status *se_status)
733{
734 struct st_nci_info *info = nci_get_drvdata(ndev);
735
736 init_completion(&info->se_info.req_completion);
737
738 init_timer(&info->se_info.bwi_timer);
739 info->se_info.bwi_timer.data = (unsigned long)info;
740 info->se_info.bwi_timer.function = st_nci_se_wt_timeout;
741 info->se_info.bwi_active = false;
742
743 init_timer(&info->se_info.se_active_timer);
744 info->se_info.se_active_timer.data = (unsigned long)info;
745 info->se_info.se_active_timer.function =
746 st_nci_se_activation_timeout;
747 info->se_info.se_active = false;
748
749 info->se_info.xch_error = false;
750
751 info->se_info.wt_timeout =
752 ST_NCI_BWI_TO_TIMEOUT(ST_NCI_ATR_DEFAULT_BWI);
753
754 info->se_info.se_status = se_status;
755
756 return 0;
757}
758EXPORT_SYMBOL(st_nci_se_init);
759
760void st_nci_se_deinit(struct nci_dev *ndev)
761{
762 struct st_nci_info *info = nci_get_drvdata(ndev);
763
764 if (info->se_info.bwi_active)
765 del_timer_sync(&info->se_info.bwi_timer);
766 if (info->se_info.se_active)
767 del_timer_sync(&info->se_info.se_active_timer);
768
769 info->se_info.se_active = false;
770 info->se_info.bwi_active = false;
771}
772EXPORT_SYMBOL(st_nci_se_deinit);
773
774