Commit | Line | Data |
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8b8d2e08 EL |
1 | /* |
2 | * Copyright (C) 2012 Intel Corporation. All rights reserved. | |
3 | * | |
4 | * This program is free software; you can redistribute it and/or modify | |
5 | * it under the terms of the GNU General Public License as published by | |
6 | * the Free Software Foundation; either version 2 of the License, or | |
7 | * (at your option) any later version. | |
8 | * | |
9 | * This program is distributed in the hope that it will be useful, | |
10 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
11 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
12 | * GNU General Public License for more details. | |
13 | * | |
14 | * You should have received a copy of the GNU General Public License | |
98b32dec | 15 | * along with this program; if not, see <http://www.gnu.org/licenses/>. |
8b8d2e08 EL |
16 | */ |
17 | ||
18 | #define pr_fmt(fmt) "hci: %s: " fmt, __func__ | |
19 | ||
20 | #include <linux/init.h> | |
21 | #include <linux/kernel.h> | |
22 | #include <linux/module.h> | |
23 | #include <linux/nfc.h> | |
24 | ||
25 | #include <net/nfc/nfc.h> | |
26 | #include <net/nfc/hci.h> | |
67cccfe1 | 27 | #include <net/nfc/llc.h> |
8b8d2e08 EL |
28 | |
29 | #include "hci.h" | |
30 | ||
31 | /* Largest headroom needed for outgoing HCI commands */ | |
32 | #define HCI_CMDS_HEADROOM 1 | |
33 | ||
84d48190 | 34 | int nfc_hci_result_to_errno(u8 result) |
6c1c5b9e EL |
35 | { |
36 | switch (result) { | |
37 | case NFC_HCI_ANY_OK: | |
38 | return 0; | |
23f7e6d0 EL |
39 | case NFC_HCI_ANY_E_REG_PAR_UNKNOWN: |
40 | return -EOPNOTSUPP; | |
6c1c5b9e EL |
41 | case NFC_HCI_ANY_E_TIMEOUT: |
42 | return -ETIME; | |
43 | default: | |
44 | return -1; | |
45 | } | |
46 | } | |
84d48190 | 47 | EXPORT_SYMBOL(nfc_hci_result_to_errno); |
6c1c5b9e | 48 | |
8b8d2e08 EL |
49 | static void nfc_hci_msg_tx_work(struct work_struct *work) |
50 | { | |
51 | struct nfc_hci_dev *hdev = container_of(work, struct nfc_hci_dev, | |
52 | msg_tx_work); | |
53 | struct hci_msg *msg; | |
54 | struct sk_buff *skb; | |
55 | int r = 0; | |
56 | ||
57 | mutex_lock(&hdev->msg_tx_mutex); | |
f0c91038 EL |
58 | if (hdev->shutting_down) |
59 | goto exit; | |
8b8d2e08 EL |
60 | |
61 | if (hdev->cmd_pending_msg) { | |
62 | if (timer_pending(&hdev->cmd_timer) == 0) { | |
63 | if (hdev->cmd_pending_msg->cb) | |
b5faa648 | 64 | hdev->cmd_pending_msg->cb(hdev-> |
8b8d2e08 | 65 | cmd_pending_msg-> |
b5faa648 EL |
66 | cb_context, |
67 | NULL, | |
68 | -ETIME); | |
8b8d2e08 EL |
69 | kfree(hdev->cmd_pending_msg); |
70 | hdev->cmd_pending_msg = NULL; | |
0f450772 | 71 | } else { |
8b8d2e08 | 72 | goto exit; |
0f450772 | 73 | } |
8b8d2e08 EL |
74 | } |
75 | ||
76 | next_msg: | |
77 | if (list_empty(&hdev->msg_tx_queue)) | |
78 | goto exit; | |
79 | ||
80 | msg = list_first_entry(&hdev->msg_tx_queue, struct hci_msg, msg_l); | |
81 | list_del(&msg->msg_l); | |
82 | ||
83 | pr_debug("msg_tx_queue has a cmd to send\n"); | |
84 | while ((skb = skb_dequeue(&msg->msg_frags)) != NULL) { | |
412fda53 | 85 | r = nfc_llc_xmit_from_hci(hdev->llc, skb); |
8b8d2e08 EL |
86 | if (r < 0) { |
87 | kfree_skb(skb); | |
88 | skb_queue_purge(&msg->msg_frags); | |
89 | if (msg->cb) | |
b5faa648 | 90 | msg->cb(msg->cb_context, NULL, r); |
8b8d2e08 EL |
91 | kfree(msg); |
92 | break; | |
93 | } | |
94 | } | |
95 | ||
96 | if (r) | |
97 | goto next_msg; | |
98 | ||
99 | if (msg->wait_response == false) { | |
100 | kfree(msg); | |
101 | goto next_msg; | |
102 | } | |
103 | ||
104 | hdev->cmd_pending_msg = msg; | |
105 | mod_timer(&hdev->cmd_timer, jiffies + | |
106 | msecs_to_jiffies(hdev->cmd_pending_msg->completion_delay)); | |
107 | ||
108 | exit: | |
109 | mutex_unlock(&hdev->msg_tx_mutex); | |
110 | } | |
111 | ||
112 | static void nfc_hci_msg_rx_work(struct work_struct *work) | |
113 | { | |
114 | struct nfc_hci_dev *hdev = container_of(work, struct nfc_hci_dev, | |
115 | msg_rx_work); | |
116 | struct sk_buff *skb; | |
117 | struct hcp_message *message; | |
118 | u8 pipe; | |
119 | u8 type; | |
120 | u8 instruction; | |
121 | ||
122 | while ((skb = skb_dequeue(&hdev->msg_rx_queue)) != NULL) { | |
123 | pipe = skb->data[0]; | |
124 | skb_pull(skb, NFC_HCI_HCP_PACKET_HEADER_LEN); | |
125 | message = (struct hcp_message *)skb->data; | |
126 | type = HCP_MSG_GET_TYPE(message->header); | |
127 | instruction = HCP_MSG_GET_CMD(message->header); | |
128 | skb_pull(skb, NFC_HCI_HCP_MESSAGE_HEADER_LEN); | |
129 | ||
130 | nfc_hci_hcp_message_rx(hdev, pipe, type, instruction, skb); | |
131 | } | |
132 | } | |
133 | ||
ccca0d6e EL |
134 | static void __nfc_hci_cmd_completion(struct nfc_hci_dev *hdev, int err, |
135 | struct sk_buff *skb) | |
8b8d2e08 | 136 | { |
8b8d2e08 EL |
137 | del_timer_sync(&hdev->cmd_timer); |
138 | ||
139 | if (hdev->cmd_pending_msg->cb) | |
b5faa648 EL |
140 | hdev->cmd_pending_msg->cb(hdev->cmd_pending_msg->cb_context, |
141 | skb, err); | |
8b8d2e08 EL |
142 | else |
143 | kfree_skb(skb); | |
144 | ||
145 | kfree(hdev->cmd_pending_msg); | |
146 | hdev->cmd_pending_msg = NULL; | |
147 | ||
916082b0 | 148 | schedule_work(&hdev->msg_tx_work); |
ccca0d6e EL |
149 | } |
150 | ||
151 | void nfc_hci_resp_received(struct nfc_hci_dev *hdev, u8 result, | |
152 | struct sk_buff *skb) | |
153 | { | |
154 | mutex_lock(&hdev->msg_tx_mutex); | |
155 | ||
156 | if (hdev->cmd_pending_msg == NULL) { | |
157 | kfree_skb(skb); | |
158 | goto exit; | |
159 | } | |
160 | ||
161 | __nfc_hci_cmd_completion(hdev, nfc_hci_result_to_errno(result), skb); | |
8b8d2e08 EL |
162 | |
163 | exit: | |
164 | mutex_unlock(&hdev->msg_tx_mutex); | |
165 | } | |
166 | ||
167 | void nfc_hci_cmd_received(struct nfc_hci_dev *hdev, u8 pipe, u8 cmd, | |
168 | struct sk_buff *skb) | |
169 | { | |
deff5aa4 CR |
170 | int r = 0; |
171 | u8 gate = nfc_hci_pipe2gate(hdev, pipe); | |
172 | u8 local_gate, new_pipe; | |
173 | u8 gate_opened = 0x00; | |
174 | ||
175 | pr_debug("from gate %x pipe %x cmd %x\n", gate, pipe, cmd); | |
176 | ||
177 | switch (cmd) { | |
178 | case NFC_HCI_ADM_NOTIFY_PIPE_CREATED: | |
179 | if (skb->len != 5) { | |
180 | r = -EPROTO; | |
181 | break; | |
182 | } | |
183 | ||
184 | local_gate = skb->data[3]; | |
185 | new_pipe = skb->data[4]; | |
186 | nfc_hci_send_response(hdev, gate, NFC_HCI_ANY_OK, NULL, 0); | |
187 | ||
188 | /* save the new created pipe and bind with local gate, | |
189 | * the description for skb->data[3] is destination gate id | |
190 | * but since we received this cmd from host controller, we | |
191 | * are the destination and it is our local gate | |
192 | */ | |
193 | hdev->gate2pipe[local_gate] = new_pipe; | |
194 | break; | |
195 | case NFC_HCI_ANY_OPEN_PIPE: | |
196 | /* if the pipe is already created, we allow remote host to | |
197 | * open it | |
198 | */ | |
199 | if (gate != 0xff) | |
200 | nfc_hci_send_response(hdev, gate, NFC_HCI_ANY_OK, | |
201 | &gate_opened, 1); | |
202 | break; | |
203 | default: | |
204 | pr_info("Discarded unknown cmd %x to gate %x\n", cmd, gate); | |
205 | r = -EINVAL; | |
206 | break; | |
207 | } | |
208 | ||
8b8d2e08 EL |
209 | kfree_skb(skb); |
210 | } | |
211 | ||
9c5121a0 | 212 | u32 nfc_hci_sak_to_protocol(u8 sak) |
8b8d2e08 EL |
213 | { |
214 | switch (NFC_HCI_TYPE_A_SEL_PROT(sak)) { | |
215 | case NFC_HCI_TYPE_A_SEL_PROT_MIFARE: | |
216 | return NFC_PROTO_MIFARE_MASK; | |
217 | case NFC_HCI_TYPE_A_SEL_PROT_ISO14443: | |
218 | return NFC_PROTO_ISO14443_MASK; | |
219 | case NFC_HCI_TYPE_A_SEL_PROT_DEP: | |
220 | return NFC_PROTO_NFC_DEP_MASK; | |
221 | case NFC_HCI_TYPE_A_SEL_PROT_ISO14443_DEP: | |
222 | return NFC_PROTO_ISO14443_MASK | NFC_PROTO_NFC_DEP_MASK; | |
223 | default: | |
224 | return 0xffffffff; | |
225 | } | |
226 | } | |
9c5121a0 | 227 | EXPORT_SYMBOL(nfc_hci_sak_to_protocol); |
8b8d2e08 | 228 | |
f7a5f6c5 | 229 | int nfc_hci_target_discovered(struct nfc_hci_dev *hdev, u8 gate) |
8b8d2e08 EL |
230 | { |
231 | struct nfc_target *targets; | |
232 | struct sk_buff *atqa_skb = NULL; | |
233 | struct sk_buff *sak_skb = NULL; | |
81b30395 | 234 | struct sk_buff *uid_skb = NULL; |
8b8d2e08 EL |
235 | int r; |
236 | ||
237 | pr_debug("from gate %d\n", gate); | |
238 | ||
239 | targets = kzalloc(sizeof(struct nfc_target), GFP_KERNEL); | |
240 | if (targets == NULL) | |
241 | return -ENOMEM; | |
242 | ||
243 | switch (gate) { | |
244 | case NFC_HCI_RF_READER_A_GATE: | |
245 | r = nfc_hci_get_param(hdev, NFC_HCI_RF_READER_A_GATE, | |
246 | NFC_HCI_RF_READER_A_ATQA, &atqa_skb); | |
247 | if (r < 0) | |
248 | goto exit; | |
249 | ||
250 | r = nfc_hci_get_param(hdev, NFC_HCI_RF_READER_A_GATE, | |
251 | NFC_HCI_RF_READER_A_SAK, &sak_skb); | |
252 | if (r < 0) | |
253 | goto exit; | |
254 | ||
255 | if (atqa_skb->len != 2 || sak_skb->len != 1) { | |
256 | r = -EPROTO; | |
257 | goto exit; | |
258 | } | |
259 | ||
260 | targets->supported_protocols = | |
261 | nfc_hci_sak_to_protocol(sak_skb->data[0]); | |
262 | if (targets->supported_protocols == 0xffffffff) { | |
263 | r = -EPROTO; | |
264 | goto exit; | |
265 | } | |
266 | ||
74157ef5 | 267 | targets->sens_res = be16_to_cpu(*(__be16 *)atqa_skb->data); |
8b8d2e08 EL |
268 | targets->sel_res = sak_skb->data[0]; |
269 | ||
81b30395 EL |
270 | r = nfc_hci_get_param(hdev, NFC_HCI_RF_READER_A_GATE, |
271 | NFC_HCI_RF_READER_A_UID, &uid_skb); | |
272 | if (r < 0) | |
273 | goto exit; | |
274 | ||
275 | if (uid_skb->len == 0 || uid_skb->len > NFC_NFCID1_MAXSIZE) { | |
276 | r = -EPROTO; | |
277 | goto exit; | |
278 | } | |
279 | ||
280 | memcpy(targets->nfcid1, uid_skb->data, uid_skb->len); | |
281 | targets->nfcid1_len = uid_skb->len; | |
282 | ||
8b8d2e08 EL |
283 | if (hdev->ops->complete_target_discovered) { |
284 | r = hdev->ops->complete_target_discovered(hdev, gate, | |
285 | targets); | |
286 | if (r < 0) | |
287 | goto exit; | |
288 | } | |
289 | break; | |
290 | case NFC_HCI_RF_READER_B_GATE: | |
01d719a2 | 291 | targets->supported_protocols = NFC_PROTO_ISO14443_B_MASK; |
8b8d2e08 EL |
292 | break; |
293 | default: | |
294 | if (hdev->ops->target_from_gate) | |
295 | r = hdev->ops->target_from_gate(hdev, gate, targets); | |
296 | else | |
297 | r = -EPROTO; | |
298 | if (r < 0) | |
299 | goto exit; | |
300 | ||
301 | if (hdev->ops->complete_target_discovered) { | |
302 | r = hdev->ops->complete_target_discovered(hdev, gate, | |
303 | targets); | |
304 | if (r < 0) | |
305 | goto exit; | |
306 | } | |
307 | break; | |
308 | } | |
309 | ||
928326f2 AW |
310 | /* if driver set the new gate, we will skip the old one */ |
311 | if (targets->hci_reader_gate == 0x00) | |
312 | targets->hci_reader_gate = gate; | |
8b8d2e08 EL |
313 | |
314 | r = nfc_targets_found(hdev->ndev, targets, 1); | |
8b8d2e08 EL |
315 | |
316 | exit: | |
317 | kfree(targets); | |
318 | kfree_skb(atqa_skb); | |
319 | kfree_skb(sak_skb); | |
81b30395 | 320 | kfree_skb(uid_skb); |
8b8d2e08 EL |
321 | |
322 | return r; | |
323 | } | |
f7a5f6c5 | 324 | EXPORT_SYMBOL(nfc_hci_target_discovered); |
8b8d2e08 EL |
325 | |
326 | void nfc_hci_event_received(struct nfc_hci_dev *hdev, u8 pipe, u8 event, | |
327 | struct sk_buff *skb) | |
328 | { | |
329 | int r = 0; | |
74a5b966 EL |
330 | u8 gate = nfc_hci_pipe2gate(hdev, pipe); |
331 | ||
332 | if (gate == 0xff) { | |
333 | pr_err("Discarded event %x to unopened pipe %x\n", event, pipe); | |
334 | goto exit; | |
335 | } | |
8b8d2e08 | 336 | |
40d06d36 EL |
337 | if (hdev->ops->event_received) { |
338 | r = hdev->ops->event_received(hdev, gate, event, skb); | |
339 | if (r <= 0) | |
340 | goto exit_noskb; | |
341 | } | |
342 | ||
8b8d2e08 EL |
343 | switch (event) { |
344 | case NFC_HCI_EVT_TARGET_DISCOVERED: | |
8b8d2e08 EL |
345 | if (skb->len < 1) { /* no status data? */ |
346 | r = -EPROTO; | |
347 | goto exit; | |
348 | } | |
349 | ||
350 | if (skb->data[0] == 3) { | |
351 | /* TODO: Multiple targets in field, none activated | |
352 | * poll is supposedly stopped, but there is no | |
353 | * single target to activate, so nothing to report | |
354 | * up. | |
355 | * if we need to restart poll, we must save the | |
356 | * protocols from the initial poll and reuse here. | |
357 | */ | |
358 | } | |
359 | ||
360 | if (skb->data[0] != 0) { | |
361 | r = -EPROTO; | |
362 | goto exit; | |
363 | } | |
364 | ||
74a5b966 | 365 | r = nfc_hci_target_discovered(hdev, gate); |
8b8d2e08 EL |
366 | break; |
367 | default: | |
40d06d36 EL |
368 | pr_info("Discarded unknown event %x to gate %x\n", event, gate); |
369 | r = -EINVAL; | |
8b8d2e08 EL |
370 | break; |
371 | } | |
372 | ||
373 | exit: | |
374 | kfree_skb(skb); | |
375 | ||
27c31191 | 376 | exit_noskb: |
249eb5bd SO |
377 | if (r) |
378 | nfc_hci_driver_failure(hdev, r); | |
8b8d2e08 EL |
379 | } |
380 | ||
381 | static void nfc_hci_cmd_timeout(unsigned long data) | |
382 | { | |
383 | struct nfc_hci_dev *hdev = (struct nfc_hci_dev *)data; | |
384 | ||
916082b0 | 385 | schedule_work(&hdev->msg_tx_work); |
8b8d2e08 EL |
386 | } |
387 | ||
388 | static int hci_dev_connect_gates(struct nfc_hci_dev *hdev, u8 gate_count, | |
a10d595b | 389 | struct nfc_hci_gate *gates) |
8b8d2e08 EL |
390 | { |
391 | int r; | |
8b8d2e08 | 392 | while (gate_count--) { |
a10d595b EL |
393 | r = nfc_hci_connect_gate(hdev, NFC_HCI_HOST_CONTROLLER_ID, |
394 | gates->gate, gates->pipe); | |
8b8d2e08 EL |
395 | if (r < 0) |
396 | return r; | |
a10d595b | 397 | gates++; |
8b8d2e08 EL |
398 | } |
399 | ||
400 | return 0; | |
401 | } | |
402 | ||
403 | static int hci_dev_session_init(struct nfc_hci_dev *hdev) | |
404 | { | |
405 | struct sk_buff *skb = NULL; | |
406 | int r; | |
a10d595b EL |
407 | |
408 | if (hdev->init_data.gates[0].gate != NFC_HCI_ADMIN_GATE) | |
409 | return -EPROTO; | |
8b8d2e08 EL |
410 | |
411 | r = nfc_hci_connect_gate(hdev, NFC_HCI_HOST_CONTROLLER_ID, | |
a10d595b EL |
412 | hdev->init_data.gates[0].gate, |
413 | hdev->init_data.gates[0].pipe); | |
8b8d2e08 EL |
414 | if (r < 0) |
415 | goto exit; | |
416 | ||
417 | r = nfc_hci_get_param(hdev, NFC_HCI_ADMIN_GATE, | |
418 | NFC_HCI_ADMIN_SESSION_IDENTITY, &skb); | |
419 | if (r < 0) | |
420 | goto disconnect_all; | |
421 | ||
e240bc36 CR |
422 | if (skb->len && skb->len == strlen(hdev->init_data.session_id) && |
423 | (memcmp(hdev->init_data.session_id, skb->data, | |
424 | skb->len) == 0) && hdev->ops->load_session) { | |
425 | /* Restore gate<->pipe table from some proprietary location. */ | |
8b8d2e08 | 426 | |
e240bc36 | 427 | r = hdev->ops->load_session(hdev); |
8b8d2e08 | 428 | |
e240bc36 CR |
429 | if (r < 0) |
430 | goto disconnect_all; | |
431 | } else { | |
8b8d2e08 | 432 | |
e240bc36 CR |
433 | r = nfc_hci_disconnect_all_gates(hdev); |
434 | if (r < 0) | |
435 | goto exit; | |
8b8d2e08 | 436 | |
e240bc36 CR |
437 | r = hci_dev_connect_gates(hdev, hdev->init_data.gate_count, |
438 | hdev->init_data.gates); | |
439 | if (r < 0) | |
440 | goto disconnect_all; | |
441 | ||
442 | r = nfc_hci_set_param(hdev, NFC_HCI_ADMIN_GATE, | |
443 | NFC_HCI_ADMIN_SESSION_IDENTITY, | |
444 | hdev->init_data.session_id, | |
445 | strlen(hdev->init_data.session_id)); | |
446 | } | |
8b8d2e08 EL |
447 | if (r == 0) |
448 | goto exit; | |
449 | ||
450 | disconnect_all: | |
451 | nfc_hci_disconnect_all_gates(hdev); | |
452 | ||
453 | exit: | |
33e59713 | 454 | kfree_skb(skb); |
8b8d2e08 EL |
455 | |
456 | return r; | |
457 | } | |
458 | ||
459 | static int hci_dev_version(struct nfc_hci_dev *hdev) | |
460 | { | |
461 | int r; | |
462 | struct sk_buff *skb; | |
463 | ||
464 | r = nfc_hci_get_param(hdev, NFC_HCI_ID_MGMT_GATE, | |
465 | NFC_HCI_ID_MGMT_VERSION_SW, &skb); | |
23f7e6d0 EL |
466 | if (r == -EOPNOTSUPP) { |
467 | pr_info("Software/Hardware info not available\n"); | |
468 | return 0; | |
469 | } | |
8b8d2e08 EL |
470 | if (r < 0) |
471 | return r; | |
472 | ||
473 | if (skb->len != 3) { | |
474 | kfree_skb(skb); | |
475 | return -EINVAL; | |
476 | } | |
477 | ||
478 | hdev->sw_romlib = (skb->data[0] & 0xf0) >> 4; | |
479 | hdev->sw_patch = skb->data[0] & 0x0f; | |
480 | hdev->sw_flashlib_major = skb->data[1]; | |
481 | hdev->sw_flashlib_minor = skb->data[2]; | |
482 | ||
483 | kfree_skb(skb); | |
484 | ||
485 | r = nfc_hci_get_param(hdev, NFC_HCI_ID_MGMT_GATE, | |
486 | NFC_HCI_ID_MGMT_VERSION_HW, &skb); | |
487 | if (r < 0) | |
488 | return r; | |
489 | ||
490 | if (skb->len != 3) { | |
491 | kfree_skb(skb); | |
492 | return -EINVAL; | |
493 | } | |
494 | ||
495 | hdev->hw_derivative = (skb->data[0] & 0xe0) >> 5; | |
496 | hdev->hw_version = skb->data[0] & 0x1f; | |
497 | hdev->hw_mpw = (skb->data[1] & 0xc0) >> 6; | |
498 | hdev->hw_software = skb->data[1] & 0x3f; | |
499 | hdev->hw_bsid = skb->data[2]; | |
500 | ||
501 | kfree_skb(skb); | |
502 | ||
503 | pr_info("SOFTWARE INFO:\n"); | |
504 | pr_info("RomLib : %d\n", hdev->sw_romlib); | |
505 | pr_info("Patch : %d\n", hdev->sw_patch); | |
506 | pr_info("FlashLib Major : %d\n", hdev->sw_flashlib_major); | |
507 | pr_info("FlashLib Minor : %d\n", hdev->sw_flashlib_minor); | |
508 | pr_info("HARDWARE INFO:\n"); | |
509 | pr_info("Derivative : %d\n", hdev->hw_derivative); | |
510 | pr_info("HW Version : %d\n", hdev->hw_version); | |
511 | pr_info("#MPW : %d\n", hdev->hw_mpw); | |
512 | pr_info("Software : %d\n", hdev->hw_software); | |
513 | pr_info("BSID Version : %d\n", hdev->hw_bsid); | |
514 | ||
515 | return 0; | |
516 | } | |
517 | ||
518 | static int hci_dev_up(struct nfc_dev *nfc_dev) | |
519 | { | |
520 | struct nfc_hci_dev *hdev = nfc_get_drvdata(nfc_dev); | |
521 | int r = 0; | |
522 | ||
523 | if (hdev->ops->open) { | |
524 | r = hdev->ops->open(hdev); | |
525 | if (r < 0) | |
526 | return r; | |
527 | } | |
528 | ||
412fda53 EL |
529 | r = nfc_llc_start(hdev->llc); |
530 | if (r < 0) | |
531 | goto exit_close; | |
532 | ||
8b8d2e08 EL |
533 | r = hci_dev_session_init(hdev); |
534 | if (r < 0) | |
412fda53 | 535 | goto exit_llc; |
8b8d2e08 EL |
536 | |
537 | r = nfc_hci_send_event(hdev, NFC_HCI_RF_READER_A_GATE, | |
538 | NFC_HCI_EVT_END_OPERATION, NULL, 0); | |
539 | if (r < 0) | |
412fda53 | 540 | goto exit_llc; |
8b8d2e08 EL |
541 | |
542 | if (hdev->ops->hci_ready) { | |
543 | r = hdev->ops->hci_ready(hdev); | |
544 | if (r < 0) | |
412fda53 | 545 | goto exit_llc; |
8b8d2e08 EL |
546 | } |
547 | ||
548 | r = hci_dev_version(hdev); | |
549 | if (r < 0) | |
412fda53 EL |
550 | goto exit_llc; |
551 | ||
552 | return 0; | |
553 | ||
554 | exit_llc: | |
555 | nfc_llc_stop(hdev->llc); | |
556 | ||
557 | exit_close: | |
558 | if (hdev->ops->close) | |
559 | hdev->ops->close(hdev); | |
8b8d2e08 | 560 | |
8b8d2e08 EL |
561 | return r; |
562 | } | |
563 | ||
564 | static int hci_dev_down(struct nfc_dev *nfc_dev) | |
565 | { | |
566 | struct nfc_hci_dev *hdev = nfc_get_drvdata(nfc_dev); | |
567 | ||
412fda53 EL |
568 | nfc_llc_stop(hdev->llc); |
569 | ||
8b8d2e08 EL |
570 | if (hdev->ops->close) |
571 | hdev->ops->close(hdev); | |
572 | ||
573 | memset(hdev->gate2pipe, NFC_HCI_INVALID_PIPE, sizeof(hdev->gate2pipe)); | |
574 | ||
575 | return 0; | |
576 | } | |
577 | ||
fe7c5800 SO |
578 | static int hci_start_poll(struct nfc_dev *nfc_dev, |
579 | u32 im_protocols, u32 tm_protocols) | |
8b8d2e08 EL |
580 | { |
581 | struct nfc_hci_dev *hdev = nfc_get_drvdata(nfc_dev); | |
8b8d2e08 EL |
582 | |
583 | if (hdev->ops->start_poll) | |
fe7c5800 | 584 | return hdev->ops->start_poll(hdev, im_protocols, tm_protocols); |
8b8d2e08 | 585 | else |
03bed29e | 586 | return nfc_hci_send_event(hdev, NFC_HCI_RF_READER_A_GATE, |
0f450772 SJ |
587 | NFC_HCI_EVT_READER_REQUESTED, |
588 | NULL, 0); | |
8b8d2e08 EL |
589 | } |
590 | ||
591 | static void hci_stop_poll(struct nfc_dev *nfc_dev) | |
592 | { | |
593 | struct nfc_hci_dev *hdev = nfc_get_drvdata(nfc_dev); | |
594 | ||
95f7687b CR |
595 | if (hdev->ops->stop_poll) |
596 | hdev->ops->stop_poll(hdev); | |
597 | else | |
598 | nfc_hci_send_event(hdev, NFC_HCI_RF_READER_A_GATE, | |
599 | NFC_HCI_EVT_END_OPERATION, NULL, 0); | |
8b8d2e08 EL |
600 | } |
601 | ||
c40d1740 AW |
602 | static int hci_dep_link_up(struct nfc_dev *nfc_dev, struct nfc_target *target, |
603 | __u8 comm_mode, __u8 *gb, size_t gb_len) | |
604 | { | |
605 | struct nfc_hci_dev *hdev = nfc_get_drvdata(nfc_dev); | |
606 | ||
a395298c SO |
607 | if (!hdev->ops->dep_link_up) |
608 | return 0; | |
c40d1740 | 609 | |
a395298c SO |
610 | return hdev->ops->dep_link_up(hdev, target, comm_mode, |
611 | gb, gb_len); | |
c40d1740 AW |
612 | } |
613 | ||
614 | static int hci_dep_link_down(struct nfc_dev *nfc_dev) | |
615 | { | |
616 | struct nfc_hci_dev *hdev = nfc_get_drvdata(nfc_dev); | |
617 | ||
a395298c SO |
618 | if (!hdev->ops->dep_link_down) |
619 | return 0; | |
c40d1740 | 620 | |
a395298c | 621 | return hdev->ops->dep_link_down(hdev); |
c40d1740 AW |
622 | } |
623 | ||
90099433 EL |
624 | static int hci_activate_target(struct nfc_dev *nfc_dev, |
625 | struct nfc_target *target, u32 protocol) | |
8b8d2e08 | 626 | { |
8b8d2e08 EL |
627 | return 0; |
628 | } | |
629 | ||
90099433 EL |
630 | static void hci_deactivate_target(struct nfc_dev *nfc_dev, |
631 | struct nfc_target *target) | |
8b8d2e08 EL |
632 | { |
633 | } | |
634 | ||
f3e8fb55 EL |
635 | #define HCI_CB_TYPE_TRANSCEIVE 1 |
636 | ||
637 | static void hci_transceive_cb(void *context, struct sk_buff *skb, int err) | |
638 | { | |
639 | struct nfc_hci_dev *hdev = context; | |
640 | ||
641 | switch (hdev->async_cb_type) { | |
642 | case HCI_CB_TYPE_TRANSCEIVE: | |
643 | /* | |
644 | * TODO: Check RF Error indicator to make sure data is valid. | |
645 | * It seems that HCI cmd can complete without error, but data | |
646 | * can be invalid if an RF error occured? Ignore for now. | |
647 | */ | |
648 | if (err == 0) | |
649 | skb_trim(skb, skb->len - 1); /* RF Err ind */ | |
650 | ||
651 | hdev->async_cb(hdev->async_cb_context, skb, err); | |
652 | break; | |
653 | default: | |
654 | if (err == 0) | |
655 | kfree_skb(skb); | |
656 | break; | |
657 | } | |
658 | } | |
659 | ||
be9ae4ce SO |
660 | static int hci_transceive(struct nfc_dev *nfc_dev, struct nfc_target *target, |
661 | struct sk_buff *skb, data_exchange_cb_t cb, | |
662 | void *cb_context) | |
8b8d2e08 EL |
663 | { |
664 | struct nfc_hci_dev *hdev = nfc_get_drvdata(nfc_dev); | |
665 | int r; | |
8b8d2e08 | 666 | |
90099433 | 667 | pr_debug("target_idx=%d\n", target->idx); |
8b8d2e08 EL |
668 | |
669 | switch (target->hci_reader_gate) { | |
670 | case NFC_HCI_RF_READER_A_GATE: | |
671 | case NFC_HCI_RF_READER_B_GATE: | |
e8107623 AW |
672 | if (hdev->ops->im_transceive) { |
673 | r = hdev->ops->im_transceive(hdev, target, skb, cb, | |
f3e8fb55 | 674 | cb_context); |
8b8d2e08 EL |
675 | if (r <= 0) /* handled */ |
676 | break; | |
677 | } | |
678 | ||
679 | *skb_push(skb, 1) = 0; /* CTR, see spec:10.2.2.1 */ | |
f3e8fb55 EL |
680 | |
681 | hdev->async_cb_type = HCI_CB_TYPE_TRANSCEIVE; | |
682 | hdev->async_cb = cb; | |
683 | hdev->async_cb_context = cb_context; | |
684 | ||
685 | r = nfc_hci_send_cmd_async(hdev, target->hci_reader_gate, | |
686 | NFC_HCI_WR_XCHG_DATA, skb->data, | |
687 | skb->len, hci_transceive_cb, hdev); | |
8b8d2e08 EL |
688 | break; |
689 | default: | |
e8107623 AW |
690 | if (hdev->ops->im_transceive) { |
691 | r = hdev->ops->im_transceive(hdev, target, skb, cb, | |
f3e8fb55 | 692 | cb_context); |
8b8d2e08 EL |
693 | if (r == 1) |
694 | r = -ENOTSUPP; | |
0f450772 | 695 | } else { |
8b8d2e08 | 696 | r = -ENOTSUPP; |
0f450772 | 697 | } |
f3e8fb55 | 698 | break; |
8b8d2e08 EL |
699 | } |
700 | ||
701 | kfree_skb(skb); | |
702 | ||
f3e8fb55 | 703 | return r; |
8b8d2e08 EL |
704 | } |
705 | ||
984d334f | 706 | static int hci_tm_send(struct nfc_dev *nfc_dev, struct sk_buff *skb) |
e8107623 AW |
707 | { |
708 | struct nfc_hci_dev *hdev = nfc_get_drvdata(nfc_dev); | |
709 | ||
a395298c SO |
710 | if (!hdev->ops->tm_send) { |
711 | kfree_skb(skb); | |
712 | return -ENOTSUPP; | |
713 | } | |
924d4a02 | 714 | |
a395298c | 715 | return hdev->ops->tm_send(hdev, skb); |
e8107623 AW |
716 | } |
717 | ||
1676f751 EL |
718 | static int hci_check_presence(struct nfc_dev *nfc_dev, |
719 | struct nfc_target *target) | |
720 | { | |
721 | struct nfc_hci_dev *hdev = nfc_get_drvdata(nfc_dev); | |
722 | ||
a395298c SO |
723 | if (!hdev->ops->check_presence) |
724 | return 0; | |
1676f751 | 725 | |
a395298c | 726 | return hdev->ops->check_presence(hdev, target); |
1676f751 EL |
727 | } |
728 | ||
0a946301 SO |
729 | static int hci_discover_se(struct nfc_dev *nfc_dev) |
730 | { | |
731 | struct nfc_hci_dev *hdev = nfc_get_drvdata(nfc_dev); | |
732 | ||
733 | if (hdev->ops->discover_se) | |
734 | return hdev->ops->discover_se(hdev); | |
735 | ||
736 | return 0; | |
737 | } | |
738 | ||
739 | static int hci_enable_se(struct nfc_dev *nfc_dev, u32 se_idx) | |
740 | { | |
741 | struct nfc_hci_dev *hdev = nfc_get_drvdata(nfc_dev); | |
742 | ||
743 | if (hdev->ops->enable_se) | |
744 | return hdev->ops->enable_se(hdev, se_idx); | |
745 | ||
746 | return 0; | |
747 | } | |
748 | ||
749 | static int hci_disable_se(struct nfc_dev *nfc_dev, u32 se_idx) | |
750 | { | |
751 | struct nfc_hci_dev *hdev = nfc_get_drvdata(nfc_dev); | |
752 | ||
753 | if (hdev->ops->disable_se) | |
4eba11e8 | 754 | return hdev->ops->disable_se(hdev, se_idx); |
0a946301 SO |
755 | |
756 | return 0; | |
757 | } | |
758 | ||
9b8d32b7 CR |
759 | static int hci_se_io(struct nfc_dev *nfc_dev, u32 se_idx, |
760 | u8 *apdu, size_t apdu_length, | |
761 | se_io_cb_t cb, void *cb_context) | |
762 | { | |
763 | struct nfc_hci_dev *hdev = nfc_get_drvdata(nfc_dev); | |
764 | ||
765 | if (hdev->ops->se_io) | |
766 | return hdev->ops->se_io(hdev, se_idx, apdu, | |
767 | apdu_length, cb, cb_context); | |
768 | ||
769 | return 0; | |
770 | } | |
771 | ||
412fda53 EL |
772 | static void nfc_hci_failure(struct nfc_hci_dev *hdev, int err) |
773 | { | |
774 | mutex_lock(&hdev->msg_tx_mutex); | |
775 | ||
776 | if (hdev->cmd_pending_msg == NULL) { | |
777 | nfc_driver_failure(hdev->ndev, err); | |
778 | goto exit; | |
779 | } | |
780 | ||
781 | __nfc_hci_cmd_completion(hdev, err, NULL); | |
782 | ||
783 | exit: | |
784 | mutex_unlock(&hdev->msg_tx_mutex); | |
785 | } | |
786 | ||
787 | static void nfc_hci_llc_failure(struct nfc_hci_dev *hdev, int err) | |
788 | { | |
789 | nfc_hci_failure(hdev, err); | |
790 | } | |
791 | ||
792 | static void nfc_hci_recv_from_llc(struct nfc_hci_dev *hdev, struct sk_buff *skb) | |
793 | { | |
794 | struct hcp_packet *packet; | |
795 | u8 type; | |
796 | u8 instruction; | |
797 | struct sk_buff *hcp_skb; | |
798 | u8 pipe; | |
799 | struct sk_buff *frag_skb; | |
800 | int msg_len; | |
801 | ||
802 | packet = (struct hcp_packet *)skb->data; | |
803 | if ((packet->header & ~NFC_HCI_FRAGMENT) == 0) { | |
804 | skb_queue_tail(&hdev->rx_hcp_frags, skb); | |
805 | return; | |
806 | } | |
807 | ||
808 | /* it's the last fragment. Does it need re-aggregation? */ | |
809 | if (skb_queue_len(&hdev->rx_hcp_frags)) { | |
810 | pipe = packet->header & NFC_HCI_FRAGMENT; | |
811 | skb_queue_tail(&hdev->rx_hcp_frags, skb); | |
812 | ||
813 | msg_len = 0; | |
814 | skb_queue_walk(&hdev->rx_hcp_frags, frag_skb) { | |
815 | msg_len += (frag_skb->len - | |
816 | NFC_HCI_HCP_PACKET_HEADER_LEN); | |
817 | } | |
818 | ||
819 | hcp_skb = nfc_alloc_recv_skb(NFC_HCI_HCP_PACKET_HEADER_LEN + | |
820 | msg_len, GFP_KERNEL); | |
821 | if (hcp_skb == NULL) { | |
822 | nfc_hci_failure(hdev, -ENOMEM); | |
823 | return; | |
824 | } | |
825 | ||
826 | *skb_put(hcp_skb, NFC_HCI_HCP_PACKET_HEADER_LEN) = pipe; | |
827 | ||
828 | skb_queue_walk(&hdev->rx_hcp_frags, frag_skb) { | |
829 | msg_len = frag_skb->len - NFC_HCI_HCP_PACKET_HEADER_LEN; | |
830 | memcpy(skb_put(hcp_skb, msg_len), | |
831 | frag_skb->data + NFC_HCI_HCP_PACKET_HEADER_LEN, | |
832 | msg_len); | |
833 | } | |
834 | ||
835 | skb_queue_purge(&hdev->rx_hcp_frags); | |
836 | } else { | |
837 | packet->header &= NFC_HCI_FRAGMENT; | |
838 | hcp_skb = skb; | |
839 | } | |
840 | ||
841 | /* if this is a response, dispatch immediately to | |
842 | * unblock waiting cmd context. Otherwise, enqueue to dispatch | |
843 | * in separate context where handler can also execute command. | |
844 | */ | |
845 | packet = (struct hcp_packet *)hcp_skb->data; | |
846 | type = HCP_MSG_GET_TYPE(packet->message.header); | |
847 | if (type == NFC_HCI_HCP_RESPONSE) { | |
848 | pipe = packet->header; | |
849 | instruction = HCP_MSG_GET_CMD(packet->message.header); | |
850 | skb_pull(hcp_skb, NFC_HCI_HCP_PACKET_HEADER_LEN + | |
851 | NFC_HCI_HCP_MESSAGE_HEADER_LEN); | |
852 | nfc_hci_hcp_message_rx(hdev, pipe, type, instruction, hcp_skb); | |
853 | } else { | |
854 | skb_queue_tail(&hdev->msg_rx_queue, hcp_skb); | |
916082b0 | 855 | schedule_work(&hdev->msg_rx_work); |
412fda53 EL |
856 | } |
857 | } | |
858 | ||
9ea7187c | 859 | static int hci_fw_download(struct nfc_dev *nfc_dev, const char *firmware_name) |
9a695d23 EL |
860 | { |
861 | struct nfc_hci_dev *hdev = nfc_get_drvdata(nfc_dev); | |
862 | ||
9ea7187c | 863 | if (!hdev->ops->fw_download) |
a395298c | 864 | return -ENOTSUPP; |
9a695d23 | 865 | |
9ea7187c | 866 | return hdev->ops->fw_download(hdev, firmware_name); |
9a695d23 EL |
867 | } |
868 | ||
bd007bea | 869 | static struct nfc_ops hci_nfc_ops = { |
8b8d2e08 EL |
870 | .dev_up = hci_dev_up, |
871 | .dev_down = hci_dev_down, | |
872 | .start_poll = hci_start_poll, | |
873 | .stop_poll = hci_stop_poll, | |
c40d1740 AW |
874 | .dep_link_up = hci_dep_link_up, |
875 | .dep_link_down = hci_dep_link_down, | |
8b8d2e08 EL |
876 | .activate_target = hci_activate_target, |
877 | .deactivate_target = hci_deactivate_target, | |
be9ae4ce | 878 | .im_transceive = hci_transceive, |
e8107623 | 879 | .tm_send = hci_tm_send, |
1676f751 | 880 | .check_presence = hci_check_presence, |
9ea7187c | 881 | .fw_download = hci_fw_download, |
0a946301 SO |
882 | .discover_se = hci_discover_se, |
883 | .enable_se = hci_enable_se, | |
884 | .disable_se = hci_disable_se, | |
9b8d32b7 | 885 | .se_io = hci_se_io, |
8b8d2e08 EL |
886 | }; |
887 | ||
888 | struct nfc_hci_dev *nfc_hci_allocate_device(struct nfc_hci_ops *ops, | |
889 | struct nfc_hci_init_data *init_data, | |
bf71ab8b | 890 | unsigned long quirks, |
8b8d2e08 | 891 | u32 protocols, |
412fda53 | 892 | const char *llc_name, |
8b8d2e08 EL |
893 | int tx_headroom, |
894 | int tx_tailroom, | |
895 | int max_link_payload) | |
896 | { | |
897 | struct nfc_hci_dev *hdev; | |
898 | ||
899 | if (ops->xmit == NULL) | |
900 | return NULL; | |
901 | ||
902 | if (protocols == 0) | |
903 | return NULL; | |
904 | ||
905 | hdev = kzalloc(sizeof(struct nfc_hci_dev), GFP_KERNEL); | |
906 | if (hdev == NULL) | |
907 | return NULL; | |
908 | ||
412fda53 EL |
909 | hdev->llc = nfc_llc_allocate(llc_name, hdev, ops->xmit, |
910 | nfc_hci_recv_from_llc, tx_headroom, | |
911 | tx_tailroom, nfc_hci_llc_failure); | |
912 | if (hdev->llc == NULL) { | |
913 | kfree(hdev); | |
914 | return NULL; | |
915 | } | |
916 | ||
0b456c41 | 917 | hdev->ndev = nfc_allocate_device(&hci_nfc_ops, protocols, |
8b8d2e08 EL |
918 | tx_headroom + HCI_CMDS_HEADROOM, |
919 | tx_tailroom); | |
920 | if (!hdev->ndev) { | |
412fda53 | 921 | nfc_llc_free(hdev->llc); |
8b8d2e08 EL |
922 | kfree(hdev); |
923 | return NULL; | |
924 | } | |
925 | ||
926 | hdev->ops = ops; | |
927 | hdev->max_data_link_payload = max_link_payload; | |
928 | hdev->init_data = *init_data; | |
929 | ||
930 | nfc_set_drvdata(hdev->ndev, hdev); | |
931 | ||
932 | memset(hdev->gate2pipe, NFC_HCI_INVALID_PIPE, sizeof(hdev->gate2pipe)); | |
933 | ||
bf71ab8b EL |
934 | hdev->quirks = quirks; |
935 | ||
8b8d2e08 EL |
936 | return hdev; |
937 | } | |
938 | EXPORT_SYMBOL(nfc_hci_allocate_device); | |
939 | ||
940 | void nfc_hci_free_device(struct nfc_hci_dev *hdev) | |
941 | { | |
942 | nfc_free_device(hdev->ndev); | |
412fda53 | 943 | nfc_llc_free(hdev->llc); |
8b8d2e08 EL |
944 | kfree(hdev); |
945 | } | |
946 | EXPORT_SYMBOL(nfc_hci_free_device); | |
947 | ||
948 | int nfc_hci_register_device(struct nfc_hci_dev *hdev) | |
949 | { | |
8b8d2e08 EL |
950 | mutex_init(&hdev->msg_tx_mutex); |
951 | ||
952 | INIT_LIST_HEAD(&hdev->msg_tx_queue); | |
953 | ||
954 | INIT_WORK(&hdev->msg_tx_work, nfc_hci_msg_tx_work); | |
8b8d2e08 EL |
955 | |
956 | init_timer(&hdev->cmd_timer); | |
957 | hdev->cmd_timer.data = (unsigned long)hdev; | |
958 | hdev->cmd_timer.function = nfc_hci_cmd_timeout; | |
959 | ||
960 | skb_queue_head_init(&hdev->rx_hcp_frags); | |
961 | ||
962 | INIT_WORK(&hdev->msg_rx_work, nfc_hci_msg_rx_work); | |
8b8d2e08 EL |
963 | |
964 | skb_queue_head_init(&hdev->msg_rx_queue); | |
965 | ||
474fee3d | 966 | return nfc_register_device(hdev->ndev); |
8b8d2e08 EL |
967 | } |
968 | EXPORT_SYMBOL(nfc_hci_register_device); | |
969 | ||
970 | void nfc_hci_unregister_device(struct nfc_hci_dev *hdev) | |
971 | { | |
1913e57c | 972 | struct hci_msg *msg, *n; |
8b8d2e08 | 973 | |
f0c91038 EL |
974 | mutex_lock(&hdev->msg_tx_mutex); |
975 | ||
976 | if (hdev->cmd_pending_msg) { | |
977 | if (hdev->cmd_pending_msg->cb) | |
978 | hdev->cmd_pending_msg->cb( | |
979 | hdev->cmd_pending_msg->cb_context, | |
980 | NULL, -ESHUTDOWN); | |
981 | kfree(hdev->cmd_pending_msg); | |
982 | hdev->cmd_pending_msg = NULL; | |
983 | } | |
984 | ||
985 | hdev->shutting_down = true; | |
986 | ||
987 | mutex_unlock(&hdev->msg_tx_mutex); | |
988 | ||
989 | del_timer_sync(&hdev->cmd_timer); | |
990 | cancel_work_sync(&hdev->msg_tx_work); | |
991 | ||
992 | cancel_work_sync(&hdev->msg_rx_work); | |
993 | ||
994 | nfc_unregister_device(hdev->ndev); | |
995 | ||
8b8d2e08 EL |
996 | skb_queue_purge(&hdev->rx_hcp_frags); |
997 | skb_queue_purge(&hdev->msg_rx_queue); | |
998 | ||
1913e57c | 999 | list_for_each_entry_safe(msg, n, &hdev->msg_tx_queue, msg_l) { |
8b8d2e08 EL |
1000 | list_del(&msg->msg_l); |
1001 | skb_queue_purge(&msg->msg_frags); | |
1002 | kfree(msg); | |
1003 | } | |
8b8d2e08 EL |
1004 | } |
1005 | EXPORT_SYMBOL(nfc_hci_unregister_device); | |
1006 | ||
1007 | void nfc_hci_set_clientdata(struct nfc_hci_dev *hdev, void *clientdata) | |
1008 | { | |
1009 | hdev->clientdata = clientdata; | |
1010 | } | |
1011 | EXPORT_SYMBOL(nfc_hci_set_clientdata); | |
1012 | ||
1013 | void *nfc_hci_get_clientdata(struct nfc_hci_dev *hdev) | |
1014 | { | |
1015 | return hdev->clientdata; | |
1016 | } | |
1017 | EXPORT_SYMBOL(nfc_hci_get_clientdata); | |
1018 | ||
72b06f75 EL |
1019 | void nfc_hci_driver_failure(struct nfc_hci_dev *hdev, int err) |
1020 | { | |
1021 | nfc_hci_failure(hdev, err); | |
1022 | } | |
a9a741a7 EL |
1023 | EXPORT_SYMBOL(nfc_hci_driver_failure); |
1024 | ||
0f450772 | 1025 | void nfc_hci_recv_frame(struct nfc_hci_dev *hdev, struct sk_buff *skb) |
8b8d2e08 | 1026 | { |
412fda53 | 1027 | nfc_llc_rcv_from_drv(hdev->llc, skb); |
8b8d2e08 EL |
1028 | } |
1029 | EXPORT_SYMBOL(nfc_hci_recv_frame); | |
1030 | ||
67cccfe1 EL |
1031 | static int __init nfc_hci_init(void) |
1032 | { | |
1033 | return nfc_llc_init(); | |
1034 | } | |
1035 | ||
1036 | static void __exit nfc_hci_exit(void) | |
1037 | { | |
1038 | nfc_llc_exit(); | |
1039 | } | |
1040 | ||
412fda53 | 1041 | subsys_initcall(nfc_hci_init); |
67cccfe1 EL |
1042 | module_exit(nfc_hci_exit); |
1043 | ||
8b8d2e08 | 1044 | MODULE_LICENSE("GPL"); |
80faa598 | 1045 | MODULE_DESCRIPTION("NFC HCI Core"); |