Commit | Line | Data |
---|---|---|
6a2968aa IE |
1 | /* |
2 | * The NFC Controller Interface is the communication protocol between an | |
3 | * NFC Controller (NFCC) and a Device Host (DH). | |
4 | * | |
5 | * Copyright (C) 2011 Texas Instruments, Inc. | |
772dccf4 | 6 | * Copyright (C) 2014 Marvell International Ltd. |
6a2968aa IE |
7 | * |
8 | * Written by Ilan Elias <ilane@ti.com> | |
9 | * | |
10 | * Acknowledgements: | |
11 | * This file is based on hci_core.c, which was written | |
12 | * by Maxim Krasnyansky. | |
13 | * | |
14 | * This program is free software; you can redistribute it and/or modify | |
15 | * it under the terms of the GNU General Public License version 2 | |
16 | * as published by the Free Software Foundation | |
17 | * | |
18 | * This program is distributed in the hope that it will be useful, | |
19 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
20 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
21 | * GNU General Public License for more details. | |
22 | * | |
23 | * You should have received a copy of the GNU General Public License | |
98b32dec | 24 | * along with this program; if not, see <http://www.gnu.org/licenses/>. |
6a2968aa IE |
25 | * |
26 | */ | |
27 | ||
52858b51 | 28 | #define pr_fmt(fmt) KBUILD_MODNAME ": %s: " fmt, __func__ |
ed1e0ad8 | 29 | |
8a70e7f8 | 30 | #include <linux/module.h> |
b6355e97 | 31 | #include <linux/kernel.h> |
6a2968aa IE |
32 | #include <linux/types.h> |
33 | #include <linux/workqueue.h> | |
34 | #include <linux/completion.h> | |
bc3b2d7f | 35 | #include <linux/export.h> |
6a2968aa IE |
36 | #include <linux/sched.h> |
37 | #include <linux/bitops.h> | |
38 | #include <linux/skbuff.h> | |
39 | ||
40 | #include "../nfc.h" | |
41 | #include <net/nfc/nci.h> | |
42 | #include <net/nfc/nci_core.h> | |
43 | #include <linux/nfc.h> | |
44 | ||
b16ae716 CR |
45 | struct core_conn_create_data { |
46 | int length; | |
47 | struct nci_core_conn_create_cmd *cmd; | |
48 | }; | |
49 | ||
6a2968aa IE |
50 | static void nci_cmd_work(struct work_struct *work); |
51 | static void nci_rx_work(struct work_struct *work); | |
52 | static void nci_tx_work(struct work_struct *work); | |
53 | ||
4aeee687 CR |
54 | struct nci_conn_info *nci_get_conn_info_by_conn_id(struct nci_dev *ndev, |
55 | int conn_id) | |
56 | { | |
57 | struct nci_conn_info *conn_info; | |
58 | ||
59 | list_for_each_entry(conn_info, &ndev->conn_info_list, list) { | |
60 | if (conn_info->conn_id == conn_id) | |
61 | return conn_info; | |
62 | } | |
63 | ||
64 | return NULL; | |
65 | } | |
66 | ||
85b9ce9a RD |
67 | int nci_get_conn_info_by_id(struct nci_dev *ndev, u8 id) |
68 | { | |
69 | struct nci_conn_info *conn_info; | |
70 | ||
71 | list_for_each_entry(conn_info, &ndev->conn_info_list, list) { | |
72 | if (conn_info->id == id) | |
73 | return conn_info->conn_id; | |
74 | } | |
75 | ||
76 | return -EINVAL; | |
77 | } | |
78 | EXPORT_SYMBOL(nci_get_conn_info_by_id); | |
79 | ||
6a2968aa IE |
80 | /* ---- NCI requests ---- */ |
81 | ||
82 | void nci_req_complete(struct nci_dev *ndev, int result) | |
83 | { | |
84 | if (ndev->req_status == NCI_REQ_PEND) { | |
85 | ndev->req_result = result; | |
86 | ndev->req_status = NCI_REQ_DONE; | |
87 | complete(&ndev->req_completion); | |
88 | } | |
89 | } | |
2df7f8c6 | 90 | EXPORT_SYMBOL(nci_req_complete); |
6a2968aa IE |
91 | |
92 | static void nci_req_cancel(struct nci_dev *ndev, int err) | |
93 | { | |
94 | if (ndev->req_status == NCI_REQ_PEND) { | |
95 | ndev->req_result = err; | |
96 | ndev->req_status = NCI_REQ_CANCELED; | |
97 | complete(&ndev->req_completion); | |
98 | } | |
99 | } | |
100 | ||
101 | /* Execute request and wait for completion. */ | |
102 | static int __nci_request(struct nci_dev *ndev, | |
eb9bc6e9 SO |
103 | void (*req)(struct nci_dev *ndev, unsigned long opt), |
104 | unsigned long opt, __u32 timeout) | |
6a2968aa IE |
105 | { |
106 | int rc = 0; | |
f8c141c3 | 107 | long completion_rc; |
6a2968aa IE |
108 | |
109 | ndev->req_status = NCI_REQ_PEND; | |
110 | ||
9bec44bf | 111 | reinit_completion(&ndev->req_completion); |
6a2968aa | 112 | req(ndev, opt); |
eb9bc6e9 SO |
113 | completion_rc = |
114 | wait_for_completion_interruptible_timeout(&ndev->req_completion, | |
115 | timeout); | |
6a2968aa | 116 | |
20c239c1 | 117 | pr_debug("wait_for_completion return %ld\n", completion_rc); |
6a2968aa IE |
118 | |
119 | if (completion_rc > 0) { | |
120 | switch (ndev->req_status) { | |
121 | case NCI_REQ_DONE: | |
122 | rc = nci_to_errno(ndev->req_result); | |
123 | break; | |
124 | ||
125 | case NCI_REQ_CANCELED: | |
126 | rc = -ndev->req_result; | |
127 | break; | |
128 | ||
129 | default: | |
130 | rc = -ETIMEDOUT; | |
131 | break; | |
132 | } | |
133 | } else { | |
ed1e0ad8 JP |
134 | pr_err("wait_for_completion_interruptible_timeout failed %ld\n", |
135 | completion_rc); | |
6a2968aa IE |
136 | |
137 | rc = ((completion_rc == 0) ? (-ETIMEDOUT) : (completion_rc)); | |
138 | } | |
139 | ||
140 | ndev->req_status = ndev->req_result = 0; | |
141 | ||
142 | return rc; | |
143 | } | |
144 | ||
11f54f22 CR |
145 | inline int nci_request(struct nci_dev *ndev, |
146 | void (*req)(struct nci_dev *ndev, | |
147 | unsigned long opt), | |
148 | unsigned long opt, __u32 timeout) | |
6a2968aa IE |
149 | { |
150 | int rc; | |
151 | ||
152 | if (!test_bit(NCI_UP, &ndev->flags)) | |
153 | return -ENETDOWN; | |
154 | ||
155 | /* Serialize all requests */ | |
156 | mutex_lock(&ndev->req_lock); | |
157 | rc = __nci_request(ndev, req, opt, timeout); | |
158 | mutex_unlock(&ndev->req_lock); | |
159 | ||
160 | return rc; | |
161 | } | |
162 | ||
163 | static void nci_reset_req(struct nci_dev *ndev, unsigned long opt) | |
164 | { | |
e8c0dacd IE |
165 | struct nci_core_reset_cmd cmd; |
166 | ||
167 | cmd.reset_type = NCI_RESET_TYPE_RESET_CONFIG; | |
168 | nci_send_cmd(ndev, NCI_OP_CORE_RESET_CMD, 1, &cmd); | |
6a2968aa IE |
169 | } |
170 | ||
171 | static void nci_init_req(struct nci_dev *ndev, unsigned long opt) | |
172 | { | |
173 | nci_send_cmd(ndev, NCI_OP_CORE_INIT_CMD, 0, NULL); | |
174 | } | |
175 | ||
176 | static void nci_init_complete_req(struct nci_dev *ndev, unsigned long opt) | |
177 | { | |
2eb1dc10 IE |
178 | struct nci_rf_disc_map_cmd cmd; |
179 | struct disc_map_config *cfg = cmd.mapping_configs; | |
180 | __u8 *num = &cmd.num_mapping_configs; | |
6a2968aa IE |
181 | int i; |
182 | ||
6a2968aa | 183 | /* set rf mapping configurations */ |
2eb1dc10 | 184 | *num = 0; |
6a2968aa IE |
185 | |
186 | /* by default mapping is set to NCI_RF_INTERFACE_FRAME */ | |
187 | for (i = 0; i < ndev->num_supported_rf_interfaces; i++) { | |
188 | if (ndev->supported_rf_interfaces[i] == | |
eb9bc6e9 | 189 | NCI_RF_INTERFACE_ISO_DEP) { |
2eb1dc10 | 190 | cfg[*num].rf_protocol = NCI_RF_PROTOCOL_ISO_DEP; |
637d85a7 IE |
191 | cfg[*num].mode = NCI_DISC_MAP_MODE_POLL | |
192 | NCI_DISC_MAP_MODE_LISTEN; | |
193 | cfg[*num].rf_interface = NCI_RF_INTERFACE_ISO_DEP; | |
2eb1dc10 | 194 | (*num)++; |
6a2968aa | 195 | } else if (ndev->supported_rf_interfaces[i] == |
eb9bc6e9 | 196 | NCI_RF_INTERFACE_NFC_DEP) { |
2eb1dc10 | 197 | cfg[*num].rf_protocol = NCI_RF_PROTOCOL_NFC_DEP; |
637d85a7 IE |
198 | cfg[*num].mode = NCI_DISC_MAP_MODE_POLL | |
199 | NCI_DISC_MAP_MODE_LISTEN; | |
200 | cfg[*num].rf_interface = NCI_RF_INTERFACE_NFC_DEP; | |
2eb1dc10 | 201 | (*num)++; |
6a2968aa IE |
202 | } |
203 | ||
2eb1dc10 | 204 | if (*num == NCI_MAX_NUM_MAPPING_CONFIGS) |
6a2968aa IE |
205 | break; |
206 | } | |
207 | ||
208 | nci_send_cmd(ndev, NCI_OP_RF_DISCOVER_MAP_CMD, | |
eb9bc6e9 | 209 | (1 + ((*num) * sizeof(struct disc_map_config))), &cmd); |
6a2968aa IE |
210 | } |
211 | ||
7e035230 IE |
212 | struct nci_set_config_param { |
213 | __u8 id; | |
214 | size_t len; | |
215 | __u8 *val; | |
216 | }; | |
217 | ||
218 | static void nci_set_config_req(struct nci_dev *ndev, unsigned long opt) | |
219 | { | |
220 | struct nci_set_config_param *param = (struct nci_set_config_param *)opt; | |
221 | struct nci_core_set_config_cmd cmd; | |
222 | ||
223 | BUG_ON(param->len > NCI_MAX_PARAM_LEN); | |
224 | ||
225 | cmd.num_params = 1; | |
226 | cmd.param.id = param->id; | |
227 | cmd.param.len = param->len; | |
228 | memcpy(cmd.param.val, param->val, param->len); | |
229 | ||
230 | nci_send_cmd(ndev, NCI_OP_CORE_SET_CONFIG_CMD, (3 + param->len), &cmd); | |
231 | } | |
232 | ||
772dccf4 JL |
233 | struct nci_rf_discover_param { |
234 | __u32 im_protocols; | |
235 | __u32 tm_protocols; | |
236 | }; | |
237 | ||
6a2968aa IE |
238 | static void nci_rf_discover_req(struct nci_dev *ndev, unsigned long opt) |
239 | { | |
772dccf4 JL |
240 | struct nci_rf_discover_param *param = |
241 | (struct nci_rf_discover_param *)opt; | |
6a2968aa | 242 | struct nci_rf_disc_cmd cmd; |
6a2968aa IE |
243 | |
244 | cmd.num_disc_configs = 0; | |
245 | ||
246 | if ((cmd.num_disc_configs < NCI_MAX_NUM_RF_CONFIGS) && | |
772dccf4 JL |
247 | (param->im_protocols & NFC_PROTO_JEWEL_MASK || |
248 | param->im_protocols & NFC_PROTO_MIFARE_MASK || | |
249 | param->im_protocols & NFC_PROTO_ISO14443_MASK || | |
250 | param->im_protocols & NFC_PROTO_NFC_DEP_MASK)) { | |
637d85a7 | 251 | cmd.disc_configs[cmd.num_disc_configs].rf_tech_and_mode = |
eb9bc6e9 | 252 | NCI_NFC_A_PASSIVE_POLL_MODE; |
6a2968aa IE |
253 | cmd.disc_configs[cmd.num_disc_configs].frequency = 1; |
254 | cmd.num_disc_configs++; | |
255 | } | |
256 | ||
257 | if ((cmd.num_disc_configs < NCI_MAX_NUM_RF_CONFIGS) && | |
772dccf4 | 258 | (param->im_protocols & NFC_PROTO_ISO14443_B_MASK)) { |
637d85a7 | 259 | cmd.disc_configs[cmd.num_disc_configs].rf_tech_and_mode = |
eb9bc6e9 | 260 | NCI_NFC_B_PASSIVE_POLL_MODE; |
6a2968aa IE |
261 | cmd.disc_configs[cmd.num_disc_configs].frequency = 1; |
262 | cmd.num_disc_configs++; | |
263 | } | |
264 | ||
265 | if ((cmd.num_disc_configs < NCI_MAX_NUM_RF_CONFIGS) && | |
772dccf4 JL |
266 | (param->im_protocols & NFC_PROTO_FELICA_MASK || |
267 | param->im_protocols & NFC_PROTO_NFC_DEP_MASK)) { | |
637d85a7 | 268 | cmd.disc_configs[cmd.num_disc_configs].rf_tech_and_mode = |
eb9bc6e9 | 269 | NCI_NFC_F_PASSIVE_POLL_MODE; |
6a2968aa IE |
270 | cmd.disc_configs[cmd.num_disc_configs].frequency = 1; |
271 | cmd.num_disc_configs++; | |
272 | } | |
273 | ||
cfdbeeaf | 274 | if ((cmd.num_disc_configs < NCI_MAX_NUM_RF_CONFIGS) && |
772dccf4 | 275 | (param->im_protocols & NFC_PROTO_ISO15693_MASK)) { |
cfdbeeaf VC |
276 | cmd.disc_configs[cmd.num_disc_configs].rf_tech_and_mode = |
277 | NCI_NFC_V_PASSIVE_POLL_MODE; | |
278 | cmd.disc_configs[cmd.num_disc_configs].frequency = 1; | |
279 | cmd.num_disc_configs++; | |
280 | } | |
281 | ||
772dccf4 JL |
282 | if ((cmd.num_disc_configs < NCI_MAX_NUM_RF_CONFIGS - 1) && |
283 | (param->tm_protocols & NFC_PROTO_NFC_DEP_MASK)) { | |
284 | cmd.disc_configs[cmd.num_disc_configs].rf_tech_and_mode = | |
285 | NCI_NFC_A_PASSIVE_LISTEN_MODE; | |
286 | cmd.disc_configs[cmd.num_disc_configs].frequency = 1; | |
287 | cmd.num_disc_configs++; | |
288 | cmd.disc_configs[cmd.num_disc_configs].rf_tech_and_mode = | |
289 | NCI_NFC_F_PASSIVE_LISTEN_MODE; | |
290 | cmd.disc_configs[cmd.num_disc_configs].frequency = 1; | |
291 | cmd.num_disc_configs++; | |
292 | } | |
293 | ||
6a2968aa | 294 | nci_send_cmd(ndev, NCI_OP_RF_DISCOVER_CMD, |
eb9bc6e9 SO |
295 | (1 + (cmd.num_disc_configs * sizeof(struct disc_config))), |
296 | &cmd); | |
6a2968aa IE |
297 | } |
298 | ||
019c4fba IE |
299 | struct nci_rf_discover_select_param { |
300 | __u8 rf_discovery_id; | |
301 | __u8 rf_protocol; | |
302 | }; | |
303 | ||
304 | static void nci_rf_discover_select_req(struct nci_dev *ndev, unsigned long opt) | |
305 | { | |
306 | struct nci_rf_discover_select_param *param = | |
eb9bc6e9 | 307 | (struct nci_rf_discover_select_param *)opt; |
019c4fba IE |
308 | struct nci_rf_discover_select_cmd cmd; |
309 | ||
310 | cmd.rf_discovery_id = param->rf_discovery_id; | |
311 | cmd.rf_protocol = param->rf_protocol; | |
312 | ||
313 | switch (cmd.rf_protocol) { | |
314 | case NCI_RF_PROTOCOL_ISO_DEP: | |
315 | cmd.rf_interface = NCI_RF_INTERFACE_ISO_DEP; | |
316 | break; | |
317 | ||
318 | case NCI_RF_PROTOCOL_NFC_DEP: | |
319 | cmd.rf_interface = NCI_RF_INTERFACE_NFC_DEP; | |
320 | break; | |
321 | ||
322 | default: | |
323 | cmd.rf_interface = NCI_RF_INTERFACE_FRAME; | |
324 | break; | |
325 | } | |
326 | ||
327 | nci_send_cmd(ndev, NCI_OP_RF_DISCOVER_SELECT_CMD, | |
eb9bc6e9 | 328 | sizeof(struct nci_rf_discover_select_cmd), &cmd); |
019c4fba IE |
329 | } |
330 | ||
6a2968aa IE |
331 | static void nci_rf_deactivate_req(struct nci_dev *ndev, unsigned long opt) |
332 | { | |
333 | struct nci_rf_deactivate_cmd cmd; | |
334 | ||
9295b5b5 | 335 | cmd.type = opt; |
6a2968aa IE |
336 | |
337 | nci_send_cmd(ndev, NCI_OP_RF_DEACTIVATE_CMD, | |
eb9bc6e9 | 338 | sizeof(struct nci_rf_deactivate_cmd), &cmd); |
6a2968aa IE |
339 | } |
340 | ||
7bc4824e | 341 | struct nci_cmd_param { |
759afb8d CR |
342 | __u16 opcode; |
343 | size_t len; | |
344 | __u8 *payload; | |
345 | }; | |
346 | ||
7bc4824e | 347 | static void nci_generic_req(struct nci_dev *ndev, unsigned long opt) |
759afb8d | 348 | { |
7bc4824e RD |
349 | struct nci_cmd_param *param = |
350 | (struct nci_cmd_param *)opt; | |
759afb8d CR |
351 | |
352 | nci_send_cmd(ndev, param->opcode, param->len, param->payload); | |
353 | } | |
354 | ||
355 | int nci_prop_cmd(struct nci_dev *ndev, __u8 oid, size_t len, __u8 *payload) | |
356 | { | |
7bc4824e | 357 | struct nci_cmd_param param; |
759afb8d CR |
358 | |
359 | param.opcode = nci_opcode_pack(NCI_GID_PROPRIETARY, oid); | |
360 | param.len = len; | |
361 | param.payload = payload; | |
362 | ||
7bc4824e | 363 | return __nci_request(ndev, nci_generic_req, (unsigned long)¶m, |
759afb8d CR |
364 | msecs_to_jiffies(NCI_CMD_TIMEOUT)); |
365 | } | |
366 | EXPORT_SYMBOL(nci_prop_cmd); | |
367 | ||
7bc4824e RD |
368 | int nci_core_cmd(struct nci_dev *ndev, __u16 opcode, size_t len, __u8 *payload) |
369 | { | |
370 | struct nci_cmd_param param; | |
371 | ||
372 | param.opcode = opcode; | |
373 | param.len = len; | |
374 | param.payload = payload; | |
375 | ||
376 | return __nci_request(ndev, nci_generic_req, (unsigned long)¶m, | |
377 | msecs_to_jiffies(NCI_CMD_TIMEOUT)); | |
378 | } | |
379 | EXPORT_SYMBOL(nci_core_cmd); | |
380 | ||
025a0cb8 RB |
381 | int nci_core_reset(struct nci_dev *ndev) |
382 | { | |
383 | return __nci_request(ndev, nci_reset_req, 0, | |
384 | msecs_to_jiffies(NCI_RESET_TIMEOUT)); | |
385 | } | |
386 | EXPORT_SYMBOL(nci_core_reset); | |
387 | ||
388 | int nci_core_init(struct nci_dev *ndev) | |
389 | { | |
390 | return __nci_request(ndev, nci_init_req, 0, | |
391 | msecs_to_jiffies(NCI_INIT_TIMEOUT)); | |
392 | } | |
393 | EXPORT_SYMBOL(nci_core_init); | |
394 | ||
6a2968aa IE |
395 | static int nci_open_device(struct nci_dev *ndev) |
396 | { | |
397 | int rc = 0; | |
398 | ||
399 | mutex_lock(&ndev->req_lock); | |
400 | ||
401 | if (test_bit(NCI_UP, &ndev->flags)) { | |
402 | rc = -EALREADY; | |
403 | goto done; | |
404 | } | |
405 | ||
406 | if (ndev->ops->open(ndev)) { | |
407 | rc = -EIO; | |
408 | goto done; | |
409 | } | |
410 | ||
411 | atomic_set(&ndev->cmd_cnt, 1); | |
412 | ||
413 | set_bit(NCI_INIT, &ndev->flags); | |
414 | ||
c39daeee CR |
415 | if (ndev->ops->init) |
416 | rc = ndev->ops->init(ndev); | |
417 | ||
418 | if (!rc) { | |
419 | rc = __nci_request(ndev, nci_reset_req, 0, | |
420 | msecs_to_jiffies(NCI_RESET_TIMEOUT)); | |
421 | } | |
6a2968aa | 422 | |
81859ab8 CR |
423 | if (!rc && ndev->ops->setup) { |
424 | rc = ndev->ops->setup(ndev); | |
425 | } | |
86e8586e | 426 | |
6a2968aa IE |
427 | if (!rc) { |
428 | rc = __nci_request(ndev, nci_init_req, 0, | |
eb9bc6e9 | 429 | msecs_to_jiffies(NCI_INIT_TIMEOUT)); |
6a2968aa IE |
430 | } |
431 | ||
e4dbd625 | 432 | if (!rc && ndev->ops->post_setup) |
fdf79bd4 | 433 | rc = ndev->ops->post_setup(ndev); |
fdf79bd4 | 434 | |
6a2968aa IE |
435 | if (!rc) { |
436 | rc = __nci_request(ndev, nci_init_complete_req, 0, | |
eb9bc6e9 | 437 | msecs_to_jiffies(NCI_INIT_TIMEOUT)); |
6a2968aa IE |
438 | } |
439 | ||
440 | clear_bit(NCI_INIT, &ndev->flags); | |
441 | ||
442 | if (!rc) { | |
443 | set_bit(NCI_UP, &ndev->flags); | |
019c4fba | 444 | nci_clear_target_list(ndev); |
8939e47f | 445 | atomic_set(&ndev->state, NCI_IDLE); |
6a2968aa IE |
446 | } else { |
447 | /* Init failed, cleanup */ | |
448 | skb_queue_purge(&ndev->cmd_q); | |
449 | skb_queue_purge(&ndev->rx_q); | |
450 | skb_queue_purge(&ndev->tx_q); | |
451 | ||
452 | ndev->ops->close(ndev); | |
453 | ndev->flags = 0; | |
454 | } | |
455 | ||
456 | done: | |
457 | mutex_unlock(&ndev->req_lock); | |
458 | return rc; | |
459 | } | |
460 | ||
461 | static int nci_close_device(struct nci_dev *ndev) | |
462 | { | |
463 | nci_req_cancel(ndev, ENODEV); | |
464 | mutex_lock(&ndev->req_lock); | |
465 | ||
466 | if (!test_and_clear_bit(NCI_UP, &ndev->flags)) { | |
467 | del_timer_sync(&ndev->cmd_timer); | |
c4bf98b2 | 468 | del_timer_sync(&ndev->data_timer); |
6a2968aa IE |
469 | mutex_unlock(&ndev->req_lock); |
470 | return 0; | |
471 | } | |
472 | ||
473 | /* Drop RX and TX queues */ | |
474 | skb_queue_purge(&ndev->rx_q); | |
475 | skb_queue_purge(&ndev->tx_q); | |
476 | ||
477 | /* Flush RX and TX wq */ | |
478 | flush_workqueue(ndev->rx_wq); | |
479 | flush_workqueue(ndev->tx_wq); | |
480 | ||
481 | /* Reset device */ | |
482 | skb_queue_purge(&ndev->cmd_q); | |
483 | atomic_set(&ndev->cmd_cnt, 1); | |
484 | ||
485 | set_bit(NCI_INIT, &ndev->flags); | |
486 | __nci_request(ndev, nci_reset_req, 0, | |
eb9bc6e9 | 487 | msecs_to_jiffies(NCI_RESET_TIMEOUT)); |
0e70cba7 CR |
488 | |
489 | /* After this point our queues are empty | |
490 | * and no works are scheduled. | |
491 | */ | |
492 | ndev->ops->close(ndev); | |
493 | ||
6a2968aa IE |
494 | clear_bit(NCI_INIT, &ndev->flags); |
495 | ||
fa9be5f0 AK |
496 | del_timer_sync(&ndev->cmd_timer); |
497 | ||
6a2968aa IE |
498 | /* Flush cmd wq */ |
499 | flush_workqueue(ndev->cmd_wq); | |
500 | ||
6a2968aa IE |
501 | /* Clear flags */ |
502 | ndev->flags = 0; | |
503 | ||
504 | mutex_unlock(&ndev->req_lock); | |
505 | ||
506 | return 0; | |
507 | } | |
508 | ||
509 | /* NCI command timer function */ | |
510 | static void nci_cmd_timer(unsigned long arg) | |
511 | { | |
512 | struct nci_dev *ndev = (void *) arg; | |
513 | ||
6a2968aa IE |
514 | atomic_set(&ndev->cmd_cnt, 1); |
515 | queue_work(ndev->cmd_wq, &ndev->cmd_work); | |
516 | } | |
517 | ||
c4bf98b2 IE |
518 | /* NCI data exchange timer function */ |
519 | static void nci_data_timer(unsigned long arg) | |
520 | { | |
521 | struct nci_dev *ndev = (void *) arg; | |
522 | ||
523 | set_bit(NCI_DATA_EXCHANGE_TO, &ndev->flags); | |
524 | queue_work(ndev->rx_wq, &ndev->rx_work); | |
525 | } | |
526 | ||
6a2968aa IE |
527 | static int nci_dev_up(struct nfc_dev *nfc_dev) |
528 | { | |
529 | struct nci_dev *ndev = nfc_get_drvdata(nfc_dev); | |
530 | ||
6a2968aa IE |
531 | return nci_open_device(ndev); |
532 | } | |
533 | ||
534 | static int nci_dev_down(struct nfc_dev *nfc_dev) | |
535 | { | |
536 | struct nci_dev *ndev = nfc_get_drvdata(nfc_dev); | |
537 | ||
6a2968aa IE |
538 | return nci_close_device(ndev); |
539 | } | |
540 | ||
22c15bf3 AK |
541 | int nci_set_config(struct nci_dev *ndev, __u8 id, size_t len, __u8 *val) |
542 | { | |
543 | struct nci_set_config_param param; | |
544 | ||
545 | if (!val || !len) | |
546 | return 0; | |
547 | ||
548 | param.id = id; | |
549 | param.len = len; | |
550 | param.val = val; | |
551 | ||
552 | return __nci_request(ndev, nci_set_config_req, (unsigned long)¶m, | |
553 | msecs_to_jiffies(NCI_SET_CONFIG_TIMEOUT)); | |
554 | } | |
555 | EXPORT_SYMBOL(nci_set_config); | |
556 | ||
af9c8aa6 CR |
557 | static void nci_nfcee_discover_req(struct nci_dev *ndev, unsigned long opt) |
558 | { | |
559 | struct nci_nfcee_discover_cmd cmd; | |
560 | __u8 action = opt; | |
561 | ||
562 | cmd.discovery_action = action; | |
563 | ||
564 | nci_send_cmd(ndev, NCI_OP_NFCEE_DISCOVER_CMD, 1, &cmd); | |
565 | } | |
566 | ||
567 | int nci_nfcee_discover(struct nci_dev *ndev, u8 action) | |
568 | { | |
21d19f87 | 569 | return __nci_request(ndev, nci_nfcee_discover_req, action, |
af9c8aa6 CR |
570 | msecs_to_jiffies(NCI_CMD_TIMEOUT)); |
571 | } | |
572 | EXPORT_SYMBOL(nci_nfcee_discover); | |
573 | ||
f7f793f3 CR |
574 | static void nci_nfcee_mode_set_req(struct nci_dev *ndev, unsigned long opt) |
575 | { | |
576 | struct nci_nfcee_mode_set_cmd *cmd = | |
577 | (struct nci_nfcee_mode_set_cmd *)opt; | |
578 | ||
579 | nci_send_cmd(ndev, NCI_OP_NFCEE_MODE_SET_CMD, | |
580 | sizeof(struct nci_nfcee_mode_set_cmd), cmd); | |
581 | } | |
582 | ||
583 | int nci_nfcee_mode_set(struct nci_dev *ndev, u8 nfcee_id, u8 nfcee_mode) | |
584 | { | |
585 | struct nci_nfcee_mode_set_cmd cmd; | |
586 | ||
587 | cmd.nfcee_id = nfcee_id; | |
588 | cmd.nfcee_mode = nfcee_mode; | |
589 | ||
21d19f87 SO |
590 | return __nci_request(ndev, nci_nfcee_mode_set_req, |
591 | (unsigned long)&cmd, | |
592 | msecs_to_jiffies(NCI_CMD_TIMEOUT)); | |
f7f793f3 CR |
593 | } |
594 | EXPORT_SYMBOL(nci_nfcee_mode_set); | |
595 | ||
736bb957 CR |
596 | static void nci_core_conn_create_req(struct nci_dev *ndev, unsigned long opt) |
597 | { | |
b16ae716 CR |
598 | struct core_conn_create_data *data = |
599 | (struct core_conn_create_data *)opt; | |
600 | ||
601 | nci_send_cmd(ndev, NCI_OP_CORE_CONN_CREATE_CMD, data->length, data->cmd); | |
736bb957 CR |
602 | } |
603 | ||
b16ae716 CR |
604 | int nci_core_conn_create(struct nci_dev *ndev, u8 destination_type, |
605 | u8 number_destination_params, | |
606 | size_t params_len, | |
736bb957 CR |
607 | struct core_conn_create_dest_spec_params *params) |
608 | { | |
b16ae716 CR |
609 | int r; |
610 | struct nci_core_conn_create_cmd *cmd; | |
611 | struct core_conn_create_data data; | |
612 | ||
c6dc65d8 DC |
613 | if (!number_destination_params) |
614 | return -EINVAL; | |
615 | ||
b16ae716 CR |
616 | data.length = params_len + sizeof(struct nci_core_conn_create_cmd); |
617 | cmd = kzalloc(data.length, GFP_KERNEL); | |
618 | if (!cmd) | |
619 | return -ENOMEM; | |
620 | ||
621 | cmd->destination_type = destination_type; | |
622 | cmd->number_destination_params = number_destination_params; | |
623 | memcpy(cmd->params, params, params_len); | |
624 | ||
625 | data.cmd = cmd; | |
caa575a8 RD |
626 | |
627 | if (params->length > 0) | |
628 | ndev->cur_id = params->value[DEST_SPEC_PARAMS_ID_INDEX]; | |
629 | else | |
630 | ndev->cur_id = 0; | |
b16ae716 CR |
631 | |
632 | r = __nci_request(ndev, nci_core_conn_create_req, | |
633 | (unsigned long)&data, | |
634 | msecs_to_jiffies(NCI_CMD_TIMEOUT)); | |
635 | kfree(cmd); | |
636 | return r; | |
736bb957 CR |
637 | } |
638 | EXPORT_SYMBOL(nci_core_conn_create); | |
639 | ||
640 | static void nci_core_conn_close_req(struct nci_dev *ndev, unsigned long opt) | |
641 | { | |
642 | __u8 conn_id = opt; | |
643 | ||
644 | nci_send_cmd(ndev, NCI_OP_CORE_CONN_CLOSE_CMD, 1, &conn_id); | |
645 | } | |
646 | ||
647 | int nci_core_conn_close(struct nci_dev *ndev, u8 conn_id) | |
648 | { | |
21d19f87 SO |
649 | return __nci_request(ndev, nci_core_conn_close_req, conn_id, |
650 | msecs_to_jiffies(NCI_CMD_TIMEOUT)); | |
736bb957 CR |
651 | } |
652 | EXPORT_SYMBOL(nci_core_conn_close); | |
653 | ||
7e035230 IE |
654 | static int nci_set_local_general_bytes(struct nfc_dev *nfc_dev) |
655 | { | |
656 | struct nci_dev *ndev = nfc_get_drvdata(nfc_dev); | |
657 | struct nci_set_config_param param; | |
529ee066 | 658 | int rc; |
7e035230 IE |
659 | |
660 | param.val = nfc_get_local_general_bytes(nfc_dev, ¶m.len); | |
661 | if ((param.val == NULL) || (param.len == 0)) | |
f9fc36f4 | 662 | return 0; |
7e035230 | 663 | |
460d8f97 | 664 | if (param.len > NFC_MAX_GT_LEN) |
7e035230 IE |
665 | return -EINVAL; |
666 | ||
7e035230 | 667 | param.id = NCI_PN_ATR_REQ_GEN_BYTES; |
7e035230 | 668 | |
529ee066 JL |
669 | rc = nci_request(ndev, nci_set_config_req, (unsigned long)¶m, |
670 | msecs_to_jiffies(NCI_SET_CONFIG_TIMEOUT)); | |
671 | if (rc) | |
672 | return rc; | |
673 | ||
674 | param.id = NCI_LN_ATR_RES_GEN_BYTES; | |
675 | ||
f9fc36f4 SJ |
676 | return nci_request(ndev, nci_set_config_req, (unsigned long)¶m, |
677 | msecs_to_jiffies(NCI_SET_CONFIG_TIMEOUT)); | |
7e035230 IE |
678 | } |
679 | ||
90d78c13 JL |
680 | static int nci_set_listen_parameters(struct nfc_dev *nfc_dev) |
681 | { | |
682 | struct nci_dev *ndev = nfc_get_drvdata(nfc_dev); | |
683 | int rc; | |
684 | __u8 val; | |
685 | ||
686 | val = NCI_LA_SEL_INFO_NFC_DEP_MASK; | |
687 | ||
688 | rc = nci_set_config(ndev, NCI_LA_SEL_INFO, 1, &val); | |
689 | if (rc) | |
690 | return rc; | |
691 | ||
692 | val = NCI_LF_PROTOCOL_TYPE_NFC_DEP_MASK; | |
693 | ||
694 | rc = nci_set_config(ndev, NCI_LF_PROTOCOL_TYPE, 1, &val); | |
695 | if (rc) | |
696 | return rc; | |
697 | ||
698 | val = NCI_LF_CON_BITR_F_212 | NCI_LF_CON_BITR_F_424; | |
699 | ||
700 | return nci_set_config(ndev, NCI_LF_CON_BITR_F, 1, &val); | |
701 | } | |
702 | ||
fe7c5800 SO |
703 | static int nci_start_poll(struct nfc_dev *nfc_dev, |
704 | __u32 im_protocols, __u32 tm_protocols) | |
6a2968aa IE |
705 | { |
706 | struct nci_dev *ndev = nfc_get_drvdata(nfc_dev); | |
772dccf4 | 707 | struct nci_rf_discover_param param; |
6a2968aa IE |
708 | int rc; |
709 | ||
019c4fba | 710 | if ((atomic_read(&ndev->state) == NCI_DISCOVERY) || |
eb9bc6e9 | 711 | (atomic_read(&ndev->state) == NCI_W4_ALL_DISCOVERIES)) { |
ed1e0ad8 | 712 | pr_err("unable to start poll, since poll is already active\n"); |
6a2968aa IE |
713 | return -EBUSY; |
714 | } | |
715 | ||
de054799 | 716 | if (ndev->target_active_prot) { |
ed1e0ad8 | 717 | pr_err("there is an active target\n"); |
de054799 IE |
718 | return -EBUSY; |
719 | } | |
720 | ||
019c4fba | 721 | if ((atomic_read(&ndev->state) == NCI_W4_HOST_SELECT) || |
eb9bc6e9 | 722 | (atomic_read(&ndev->state) == NCI_POLL_ACTIVE)) { |
019c4fba | 723 | pr_debug("target active or w4 select, implicitly deactivate\n"); |
6a2968aa | 724 | |
9295b5b5 CR |
725 | rc = nci_request(ndev, nci_rf_deactivate_req, |
726 | NCI_DEACTIVATE_TYPE_IDLE_MODE, | |
eb9bc6e9 | 727 | msecs_to_jiffies(NCI_RF_DEACTIVATE_TIMEOUT)); |
6a2968aa IE |
728 | if (rc) |
729 | return -EBUSY; | |
730 | } | |
731 | ||
529ee066 | 732 | if ((im_protocols | tm_protocols) & NFC_PROTO_NFC_DEP_MASK) { |
7e035230 IE |
733 | rc = nci_set_local_general_bytes(nfc_dev); |
734 | if (rc) { | |
735 | pr_err("failed to set local general bytes\n"); | |
736 | return rc; | |
737 | } | |
738 | } | |
739 | ||
90d78c13 JL |
740 | if (tm_protocols & NFC_PROTO_NFC_DEP_MASK) { |
741 | rc = nci_set_listen_parameters(nfc_dev); | |
742 | if (rc) | |
743 | pr_err("failed to set listen parameters\n"); | |
744 | } | |
745 | ||
772dccf4 JL |
746 | param.im_protocols = im_protocols; |
747 | param.tm_protocols = tm_protocols; | |
748 | rc = nci_request(ndev, nci_rf_discover_req, (unsigned long)¶m, | |
eb9bc6e9 | 749 | msecs_to_jiffies(NCI_RF_DISC_TIMEOUT)); |
6a2968aa IE |
750 | |
751 | if (!rc) | |
fe7c5800 | 752 | ndev->poll_prots = im_protocols; |
6a2968aa IE |
753 | |
754 | return rc; | |
755 | } | |
756 | ||
757 | static void nci_stop_poll(struct nfc_dev *nfc_dev) | |
758 | { | |
759 | struct nci_dev *ndev = nfc_get_drvdata(nfc_dev); | |
760 | ||
019c4fba | 761 | if ((atomic_read(&ndev->state) != NCI_DISCOVERY) && |
eb9bc6e9 | 762 | (atomic_read(&ndev->state) != NCI_W4_ALL_DISCOVERIES)) { |
ed1e0ad8 | 763 | pr_err("unable to stop poll, since poll is not active\n"); |
6a2968aa IE |
764 | return; |
765 | } | |
766 | ||
9295b5b5 | 767 | nci_request(ndev, nci_rf_deactivate_req, NCI_DEACTIVATE_TYPE_IDLE_MODE, |
eb9bc6e9 | 768 | msecs_to_jiffies(NCI_RF_DEACTIVATE_TIMEOUT)); |
6a2968aa IE |
769 | } |
770 | ||
90099433 EL |
771 | static int nci_activate_target(struct nfc_dev *nfc_dev, |
772 | struct nfc_target *target, __u32 protocol) | |
6a2968aa IE |
773 | { |
774 | struct nci_dev *ndev = nfc_get_drvdata(nfc_dev); | |
019c4fba | 775 | struct nci_rf_discover_select_param param; |
90099433 | 776 | struct nfc_target *nci_target = NULL; |
019c4fba IE |
777 | int i; |
778 | int rc = 0; | |
6a2968aa | 779 | |
90099433 | 780 | pr_debug("target_idx %d, protocol 0x%x\n", target->idx, protocol); |
6a2968aa | 781 | |
019c4fba | 782 | if ((atomic_read(&ndev->state) != NCI_W4_HOST_SELECT) && |
eb9bc6e9 | 783 | (atomic_read(&ndev->state) != NCI_POLL_ACTIVE)) { |
ed1e0ad8 | 784 | pr_err("there is no available target to activate\n"); |
6a2968aa IE |
785 | return -EINVAL; |
786 | } | |
787 | ||
788 | if (ndev->target_active_prot) { | |
ed1e0ad8 | 789 | pr_err("there is already an active target\n"); |
6a2968aa IE |
790 | return -EBUSY; |
791 | } | |
792 | ||
019c4fba | 793 | for (i = 0; i < ndev->n_targets; i++) { |
90099433 EL |
794 | if (ndev->targets[i].idx == target->idx) { |
795 | nci_target = &ndev->targets[i]; | |
019c4fba IE |
796 | break; |
797 | } | |
798 | } | |
799 | ||
90099433 | 800 | if (!nci_target) { |
019c4fba IE |
801 | pr_err("unable to find the selected target\n"); |
802 | return -EINVAL; | |
803 | } | |
804 | ||
90099433 | 805 | if (!(nci_target->supported_protocols & (1 << protocol))) { |
ed1e0ad8 JP |
806 | pr_err("target does not support the requested protocol 0x%x\n", |
807 | protocol); | |
6a2968aa IE |
808 | return -EINVAL; |
809 | } | |
810 | ||
019c4fba | 811 | if (atomic_read(&ndev->state) == NCI_W4_HOST_SELECT) { |
90099433 | 812 | param.rf_discovery_id = nci_target->logical_idx; |
019c4fba IE |
813 | |
814 | if (protocol == NFC_PROTO_JEWEL) | |
815 | param.rf_protocol = NCI_RF_PROTOCOL_T1T; | |
816 | else if (protocol == NFC_PROTO_MIFARE) | |
817 | param.rf_protocol = NCI_RF_PROTOCOL_T2T; | |
818 | else if (protocol == NFC_PROTO_FELICA) | |
819 | param.rf_protocol = NCI_RF_PROTOCOL_T3T; | |
01d719a2 SO |
820 | else if (protocol == NFC_PROTO_ISO14443 || |
821 | protocol == NFC_PROTO_ISO14443_B) | |
019c4fba IE |
822 | param.rf_protocol = NCI_RF_PROTOCOL_ISO_DEP; |
823 | else | |
824 | param.rf_protocol = NCI_RF_PROTOCOL_NFC_DEP; | |
825 | ||
826 | rc = nci_request(ndev, nci_rf_discover_select_req, | |
eb9bc6e9 SO |
827 | (unsigned long)¶m, |
828 | msecs_to_jiffies(NCI_RF_DISC_SELECT_TIMEOUT)); | |
019c4fba | 829 | } |
6a2968aa | 830 | |
019c4fba IE |
831 | if (!rc) |
832 | ndev->target_active_prot = protocol; | |
833 | ||
834 | return rc; | |
6a2968aa IE |
835 | } |
836 | ||
90099433 | 837 | static void nci_deactivate_target(struct nfc_dev *nfc_dev, |
96d4581f CR |
838 | struct nfc_target *target, |
839 | __u8 mode) | |
6a2968aa IE |
840 | { |
841 | struct nci_dev *ndev = nfc_get_drvdata(nfc_dev); | |
96d4581f | 842 | u8 nci_mode = NCI_DEACTIVATE_TYPE_IDLE_MODE; |
6a2968aa | 843 | |
767f19ae | 844 | pr_debug("entry\n"); |
6a2968aa IE |
845 | |
846 | if (!ndev->target_active_prot) { | |
ed1e0ad8 | 847 | pr_err("unable to deactivate target, no active target\n"); |
6a2968aa IE |
848 | return; |
849 | } | |
850 | ||
851 | ndev->target_active_prot = 0; | |
852 | ||
96d4581f CR |
853 | switch (mode) { |
854 | case NFC_TARGET_MODE_SLEEP: | |
855 | nci_mode = NCI_DEACTIVATE_TYPE_SLEEP_MODE; | |
856 | break; | |
857 | } | |
858 | ||
8939e47f | 859 | if (atomic_read(&ndev->state) == NCI_POLL_ACTIVE) { |
96d4581f | 860 | nci_request(ndev, nci_rf_deactivate_req, nci_mode, |
eb9bc6e9 | 861 | msecs_to_jiffies(NCI_RF_DEACTIVATE_TIMEOUT)); |
6a2968aa IE |
862 | } |
863 | } | |
864 | ||
767f19ae IE |
865 | static int nci_dep_link_up(struct nfc_dev *nfc_dev, struct nfc_target *target, |
866 | __u8 comm_mode, __u8 *gb, size_t gb_len) | |
867 | { | |
868 | struct nci_dev *ndev = nfc_get_drvdata(nfc_dev); | |
869 | int rc; | |
870 | ||
871 | pr_debug("target_idx %d, comm_mode %d\n", target->idx, comm_mode); | |
872 | ||
873 | rc = nci_activate_target(nfc_dev, target, NFC_PROTO_NFC_DEP); | |
874 | if (rc) | |
875 | return rc; | |
876 | ||
877 | rc = nfc_set_remote_general_bytes(nfc_dev, ndev->remote_gb, | |
878 | ndev->remote_gb_len); | |
879 | if (!rc) | |
880 | rc = nfc_dep_link_is_up(nfc_dev, target->idx, NFC_COMM_PASSIVE, | |
881 | NFC_RF_INITIATOR); | |
882 | ||
883 | return rc; | |
884 | } | |
885 | ||
886 | static int nci_dep_link_down(struct nfc_dev *nfc_dev) | |
887 | { | |
d7979e13 JL |
888 | struct nci_dev *ndev = nfc_get_drvdata(nfc_dev); |
889 | int rc; | |
890 | ||
767f19ae IE |
891 | pr_debug("entry\n"); |
892 | ||
d7979e13 | 893 | if (nfc_dev->rf_mode == NFC_RF_INITIATOR) { |
96d4581f | 894 | nci_deactivate_target(nfc_dev, NULL, NCI_DEACTIVATE_TYPE_IDLE_MODE); |
d7979e13 JL |
895 | } else { |
896 | if (atomic_read(&ndev->state) == NCI_LISTEN_ACTIVE || | |
897 | atomic_read(&ndev->state) == NCI_DISCOVERY) { | |
898 | nci_request(ndev, nci_rf_deactivate_req, 0, | |
899 | msecs_to_jiffies(NCI_RF_DEACTIVATE_TIMEOUT)); | |
900 | } | |
901 | ||
902 | rc = nfc_tm_deactivated(nfc_dev); | |
903 | if (rc) | |
904 | pr_err("error when signaling tm deactivation\n"); | |
905 | } | |
767f19ae IE |
906 | |
907 | return 0; | |
908 | } | |
909 | ||
910 | ||
be9ae4ce SO |
911 | static int nci_transceive(struct nfc_dev *nfc_dev, struct nfc_target *target, |
912 | struct sk_buff *skb, | |
913 | data_exchange_cb_t cb, void *cb_context) | |
6a2968aa IE |
914 | { |
915 | struct nci_dev *ndev = nfc_get_drvdata(nfc_dev); | |
38f04c6b | 916 | int rc; |
4aeee687 CR |
917 | struct nci_conn_info *conn_info; |
918 | ||
12bdf27d | 919 | conn_info = ndev->rf_conn_info; |
4aeee687 CR |
920 | if (!conn_info) |
921 | return -EPROTO; | |
6a2968aa | 922 | |
90099433 | 923 | pr_debug("target_idx %d, len %d\n", target->idx, skb->len); |
6a2968aa IE |
924 | |
925 | if (!ndev->target_active_prot) { | |
ed1e0ad8 | 926 | pr_err("unable to exchange data, no active target\n"); |
6a2968aa IE |
927 | return -EINVAL; |
928 | } | |
929 | ||
38f04c6b IE |
930 | if (test_and_set_bit(NCI_DATA_EXCHANGE, &ndev->flags)) |
931 | return -EBUSY; | |
932 | ||
6a2968aa | 933 | /* store cb and context to be used on receiving data */ |
4aeee687 CR |
934 | conn_info->data_exchange_cb = cb; |
935 | conn_info->data_exchange_cb_context = cb_context; | |
6a2968aa | 936 | |
e8c0dacd | 937 | rc = nci_send_data(ndev, NCI_STATIC_RF_CONN_ID, skb); |
38f04c6b IE |
938 | if (rc) |
939 | clear_bit(NCI_DATA_EXCHANGE, &ndev->flags); | |
940 | ||
941 | return rc; | |
6a2968aa IE |
942 | } |
943 | ||
485f442f JL |
944 | static int nci_tm_send(struct nfc_dev *nfc_dev, struct sk_buff *skb) |
945 | { | |
946 | struct nci_dev *ndev = nfc_get_drvdata(nfc_dev); | |
947 | int rc; | |
948 | ||
949 | rc = nci_send_data(ndev, NCI_STATIC_RF_CONN_ID, skb); | |
950 | if (rc) | |
951 | pr_err("unable to send data\n"); | |
952 | ||
953 | return rc; | |
954 | } | |
955 | ||
0a946301 SO |
956 | static int nci_enable_se(struct nfc_dev *nfc_dev, u32 se_idx) |
957 | { | |
93bca2bf CR |
958 | struct nci_dev *ndev = nfc_get_drvdata(nfc_dev); |
959 | ||
960 | if (ndev->ops->enable_se) | |
961 | return ndev->ops->enable_se(ndev, se_idx); | |
962 | ||
0a946301 SO |
963 | return 0; |
964 | } | |
965 | ||
966 | static int nci_disable_se(struct nfc_dev *nfc_dev, u32 se_idx) | |
967 | { | |
e9ef9431 CR |
968 | struct nci_dev *ndev = nfc_get_drvdata(nfc_dev); |
969 | ||
970 | if (ndev->ops->disable_se) | |
971 | return ndev->ops->disable_se(ndev, se_idx); | |
972 | ||
0a946301 SO |
973 | return 0; |
974 | } | |
975 | ||
976 | static int nci_discover_se(struct nfc_dev *nfc_dev) | |
977 | { | |
fa00e8fe | 978 | int r; |
ba4db551 CR |
979 | struct nci_dev *ndev = nfc_get_drvdata(nfc_dev); |
980 | ||
fa00e8fe CR |
981 | if (ndev->ops->discover_se) { |
982 | r = nci_nfcee_discover(ndev, NCI_NFCEE_DISCOVERY_ACTION_ENABLE); | |
983 | if (r != NCI_STATUS_OK) | |
984 | return -EPROTO; | |
985 | ||
ba4db551 | 986 | return ndev->ops->discover_se(ndev); |
fa00e8fe | 987 | } |
ba4db551 | 988 | |
0a946301 SO |
989 | return 0; |
990 | } | |
991 | ||
a688bf55 CR |
992 | static int nci_se_io(struct nfc_dev *nfc_dev, u32 se_idx, |
993 | u8 *apdu, size_t apdu_length, | |
994 | se_io_cb_t cb, void *cb_context) | |
995 | { | |
996 | struct nci_dev *ndev = nfc_get_drvdata(nfc_dev); | |
997 | ||
998 | if (ndev->ops->se_io) | |
999 | return ndev->ops->se_io(ndev, se_idx, apdu, | |
1000 | apdu_length, cb, cb_context); | |
1001 | ||
1002 | return 0; | |
1003 | } | |
1004 | ||
25af01ed CP |
1005 | static int nci_fw_download(struct nfc_dev *nfc_dev, const char *firmware_name) |
1006 | { | |
1007 | struct nci_dev *ndev = nfc_get_drvdata(nfc_dev); | |
1008 | ||
1009 | if (!ndev->ops->fw_download) | |
1010 | return -ENOTSUPP; | |
1011 | ||
1012 | return ndev->ops->fw_download(ndev, firmware_name); | |
1013 | } | |
1014 | ||
6a2968aa IE |
1015 | static struct nfc_ops nci_nfc_ops = { |
1016 | .dev_up = nci_dev_up, | |
1017 | .dev_down = nci_dev_down, | |
1018 | .start_poll = nci_start_poll, | |
1019 | .stop_poll = nci_stop_poll, | |
767f19ae IE |
1020 | .dep_link_up = nci_dep_link_up, |
1021 | .dep_link_down = nci_dep_link_down, | |
6a2968aa IE |
1022 | .activate_target = nci_activate_target, |
1023 | .deactivate_target = nci_deactivate_target, | |
be9ae4ce | 1024 | .im_transceive = nci_transceive, |
485f442f | 1025 | .tm_send = nci_tm_send, |
0a946301 SO |
1026 | .enable_se = nci_enable_se, |
1027 | .disable_se = nci_disable_se, | |
1028 | .discover_se = nci_discover_se, | |
a688bf55 | 1029 | .se_io = nci_se_io, |
25af01ed | 1030 | .fw_download = nci_fw_download, |
6a2968aa IE |
1031 | }; |
1032 | ||
1033 | /* ---- Interface to NCI drivers ---- */ | |
6a2968aa IE |
1034 | /** |
1035 | * nci_allocate_device - allocate a new nci device | |
1036 | * | |
1037 | * @ops: device operations | |
1038 | * @supported_protocols: NFC protocols supported by the device | |
1039 | */ | |
1040 | struct nci_dev *nci_allocate_device(struct nci_ops *ops, | |
eb9bc6e9 SO |
1041 | __u32 supported_protocols, |
1042 | int tx_headroom, int tx_tailroom) | |
6a2968aa | 1043 | { |
8ebafde0 | 1044 | struct nci_dev *ndev; |
6a2968aa | 1045 | |
24bf3304 | 1046 | pr_debug("supported_protocols 0x%x\n", supported_protocols); |
6a2968aa IE |
1047 | |
1048 | if (!ops->open || !ops->close || !ops->send) | |
8ebafde0 | 1049 | return NULL; |
6a2968aa IE |
1050 | |
1051 | if (!supported_protocols) | |
8ebafde0 | 1052 | return NULL; |
6a2968aa IE |
1053 | |
1054 | ndev = kzalloc(sizeof(struct nci_dev), GFP_KERNEL); | |
1055 | if (!ndev) | |
8ebafde0 | 1056 | return NULL; |
6a2968aa IE |
1057 | |
1058 | ndev->ops = ops; | |
b6355e97 SO |
1059 | |
1060 | if (ops->n_prop_ops > NCI_MAX_PROPRIETARY_CMD) { | |
1061 | pr_err("Too many proprietary commands: %zd\n", | |
1062 | ops->n_prop_ops); | |
1063 | ops->prop_ops = NULL; | |
1064 | ops->n_prop_ops = 0; | |
1065 | } | |
1066 | ||
6a2968aa IE |
1067 | ndev->tx_headroom = tx_headroom; |
1068 | ndev->tx_tailroom = tx_tailroom; | |
9bec44bf | 1069 | init_completion(&ndev->req_completion); |
6a2968aa IE |
1070 | |
1071 | ndev->nfc_dev = nfc_allocate_device(&nci_nfc_ops, | |
eb9bc6e9 SO |
1072 | supported_protocols, |
1073 | tx_headroom + NCI_DATA_HDR_SIZE, | |
1074 | tx_tailroom); | |
6a2968aa | 1075 | if (!ndev->nfc_dev) |
11f54f22 CR |
1076 | goto free_nci; |
1077 | ||
1078 | ndev->hci_dev = nci_hci_allocate(ndev); | |
1079 | if (!ndev->hci_dev) | |
1080 | goto free_nfc; | |
6a2968aa IE |
1081 | |
1082 | nfc_set_drvdata(ndev->nfc_dev, ndev); | |
1083 | ||
8ebafde0 | 1084 | return ndev; |
6a2968aa | 1085 | |
11f54f22 CR |
1086 | free_nfc: |
1087 | kfree(ndev->nfc_dev); | |
1088 | ||
1089 | free_nci: | |
6a2968aa | 1090 | kfree(ndev); |
8ebafde0 | 1091 | return NULL; |
6a2968aa IE |
1092 | } |
1093 | EXPORT_SYMBOL(nci_allocate_device); | |
1094 | ||
1095 | /** | |
1096 | * nci_free_device - deallocate nci device | |
1097 | * | |
1098 | * @ndev: The nci device to deallocate | |
1099 | */ | |
1100 | void nci_free_device(struct nci_dev *ndev) | |
1101 | { | |
6a2968aa IE |
1102 | nfc_free_device(ndev->nfc_dev); |
1103 | kfree(ndev); | |
1104 | } | |
1105 | EXPORT_SYMBOL(nci_free_device); | |
1106 | ||
1107 | /** | |
1108 | * nci_register_device - register a nci device in the nfc subsystem | |
1109 | * | |
1110 | * @dev: The nci device to register | |
1111 | */ | |
1112 | int nci_register_device(struct nci_dev *ndev) | |
1113 | { | |
1114 | int rc; | |
1115 | struct device *dev = &ndev->nfc_dev->dev; | |
1116 | char name[32]; | |
1117 | ||
6a2968aa IE |
1118 | ndev->flags = 0; |
1119 | ||
1120 | INIT_WORK(&ndev->cmd_work, nci_cmd_work); | |
1121 | snprintf(name, sizeof(name), "%s_nci_cmd_wq", dev_name(dev)); | |
1122 | ndev->cmd_wq = create_singlethread_workqueue(name); | |
1123 | if (!ndev->cmd_wq) { | |
1124 | rc = -ENOMEM; | |
3c1c0f5d | 1125 | goto exit; |
6a2968aa IE |
1126 | } |
1127 | ||
1128 | INIT_WORK(&ndev->rx_work, nci_rx_work); | |
1129 | snprintf(name, sizeof(name), "%s_nci_rx_wq", dev_name(dev)); | |
1130 | ndev->rx_wq = create_singlethread_workqueue(name); | |
1131 | if (!ndev->rx_wq) { | |
1132 | rc = -ENOMEM; | |
1133 | goto destroy_cmd_wq_exit; | |
1134 | } | |
1135 | ||
1136 | INIT_WORK(&ndev->tx_work, nci_tx_work); | |
1137 | snprintf(name, sizeof(name), "%s_nci_tx_wq", dev_name(dev)); | |
1138 | ndev->tx_wq = create_singlethread_workqueue(name); | |
1139 | if (!ndev->tx_wq) { | |
1140 | rc = -ENOMEM; | |
1141 | goto destroy_rx_wq_exit; | |
1142 | } | |
1143 | ||
1144 | skb_queue_head_init(&ndev->cmd_q); | |
1145 | skb_queue_head_init(&ndev->rx_q); | |
1146 | skb_queue_head_init(&ndev->tx_q); | |
1147 | ||
1148 | setup_timer(&ndev->cmd_timer, nci_cmd_timer, | |
eb9bc6e9 | 1149 | (unsigned long) ndev); |
c4bf98b2 | 1150 | setup_timer(&ndev->data_timer, nci_data_timer, |
eb9bc6e9 | 1151 | (unsigned long) ndev); |
6a2968aa IE |
1152 | |
1153 | mutex_init(&ndev->req_lock); | |
4aeee687 | 1154 | INIT_LIST_HEAD(&ndev->conn_info_list); |
6a2968aa | 1155 | |
3c1c0f5d VC |
1156 | rc = nfc_register_device(ndev->nfc_dev); |
1157 | if (rc) | |
1158 | goto destroy_rx_wq_exit; | |
1159 | ||
6a2968aa IE |
1160 | goto exit; |
1161 | ||
1162 | destroy_rx_wq_exit: | |
1163 | destroy_workqueue(ndev->rx_wq); | |
1164 | ||
1165 | destroy_cmd_wq_exit: | |
1166 | destroy_workqueue(ndev->cmd_wq); | |
1167 | ||
6a2968aa IE |
1168 | exit: |
1169 | return rc; | |
1170 | } | |
1171 | EXPORT_SYMBOL(nci_register_device); | |
1172 | ||
1173 | /** | |
1174 | * nci_unregister_device - unregister a nci device in the nfc subsystem | |
1175 | * | |
1176 | * @dev: The nci device to unregister | |
1177 | */ | |
1178 | void nci_unregister_device(struct nci_dev *ndev) | |
1179 | { | |
4aeee687 CR |
1180 | struct nci_conn_info *conn_info, *n; |
1181 | ||
6a2968aa IE |
1182 | nci_close_device(ndev); |
1183 | ||
1184 | destroy_workqueue(ndev->cmd_wq); | |
1185 | destroy_workqueue(ndev->rx_wq); | |
1186 | destroy_workqueue(ndev->tx_wq); | |
1187 | ||
4aeee687 CR |
1188 | list_for_each_entry_safe(conn_info, n, &ndev->conn_info_list, list) { |
1189 | list_del(&conn_info->list); | |
1190 | /* conn_info is allocated with devm_kzalloc */ | |
1191 | } | |
1192 | ||
6a2968aa IE |
1193 | nfc_unregister_device(ndev->nfc_dev); |
1194 | } | |
1195 | EXPORT_SYMBOL(nci_unregister_device); | |
1196 | ||
1197 | /** | |
1198 | * nci_recv_frame - receive frame from NCI drivers | |
1199 | * | |
1095e69f | 1200 | * @ndev: The nci device |
6a2968aa IE |
1201 | * @skb: The sk_buff to receive |
1202 | */ | |
1095e69f | 1203 | int nci_recv_frame(struct nci_dev *ndev, struct sk_buff *skb) |
6a2968aa | 1204 | { |
24bf3304 | 1205 | pr_debug("len %d\n", skb->len); |
6a2968aa | 1206 | |
874934f4 SJ |
1207 | if (!ndev || (!test_bit(NCI_UP, &ndev->flags) && |
1208 | !test_bit(NCI_INIT, &ndev->flags))) { | |
6a2968aa IE |
1209 | kfree_skb(skb); |
1210 | return -ENXIO; | |
1211 | } | |
1212 | ||
1213 | /* Queue frame for rx worker thread */ | |
1214 | skb_queue_tail(&ndev->rx_q, skb); | |
1215 | queue_work(ndev->rx_wq, &ndev->rx_work); | |
1216 | ||
1217 | return 0; | |
1218 | } | |
1219 | EXPORT_SYMBOL(nci_recv_frame); | |
1220 | ||
e5629d29 | 1221 | int nci_send_frame(struct nci_dev *ndev, struct sk_buff *skb) |
6a2968aa | 1222 | { |
24bf3304 | 1223 | pr_debug("len %d\n", skb->len); |
6a2968aa IE |
1224 | |
1225 | if (!ndev) { | |
1226 | kfree_skb(skb); | |
1227 | return -ENODEV; | |
1228 | } | |
1229 | ||
1230 | /* Get rid of skb owner, prior to sending to the driver. */ | |
1231 | skb_orphan(skb); | |
1232 | ||
05158296 HT |
1233 | /* Send copy to sniffer */ |
1234 | nfc_send_to_raw_sock(ndev->nfc_dev, skb, | |
1235 | RAW_PAYLOAD_NCI, NFC_DIRECTION_TX); | |
1236 | ||
1095e69f | 1237 | return ndev->ops->send(ndev, skb); |
6a2968aa | 1238 | } |
e5629d29 | 1239 | EXPORT_SYMBOL(nci_send_frame); |
6a2968aa IE |
1240 | |
1241 | /* Send NCI command */ | |
1242 | int nci_send_cmd(struct nci_dev *ndev, __u16 opcode, __u8 plen, void *payload) | |
1243 | { | |
1244 | struct nci_ctrl_hdr *hdr; | |
1245 | struct sk_buff *skb; | |
1246 | ||
24bf3304 | 1247 | pr_debug("opcode 0x%x, plen %d\n", opcode, plen); |
6a2968aa IE |
1248 | |
1249 | skb = nci_skb_alloc(ndev, (NCI_CTRL_HDR_SIZE + plen), GFP_KERNEL); | |
1250 | if (!skb) { | |
ed1e0ad8 | 1251 | pr_err("no memory for command\n"); |
6a2968aa IE |
1252 | return -ENOMEM; |
1253 | } | |
1254 | ||
1255 | hdr = (struct nci_ctrl_hdr *) skb_put(skb, NCI_CTRL_HDR_SIZE); | |
1256 | hdr->gid = nci_opcode_gid(opcode); | |
1257 | hdr->oid = nci_opcode_oid(opcode); | |
1258 | hdr->plen = plen; | |
1259 | ||
1260 | nci_mt_set((__u8 *)hdr, NCI_MT_CMD_PKT); | |
1261 | nci_pbf_set((__u8 *)hdr, NCI_PBF_LAST); | |
1262 | ||
1263 | if (plen) | |
1264 | memcpy(skb_put(skb, plen), payload, plen); | |
1265 | ||
6a2968aa IE |
1266 | skb_queue_tail(&ndev->cmd_q, skb); |
1267 | queue_work(ndev->cmd_wq, &ndev->cmd_work); | |
1268 | ||
1269 | return 0; | |
1270 | } | |
e5629d29 | 1271 | EXPORT_SYMBOL(nci_send_cmd); |
6a2968aa | 1272 | |
b6355e97 | 1273 | /* Proprietary commands API */ |
22e4bd09 RD |
1274 | static struct nci_driver_ops *ops_cmd_lookup(struct nci_driver_ops *ops, |
1275 | size_t n_ops, | |
1276 | __u16 opcode) | |
b6355e97 SO |
1277 | { |
1278 | size_t i; | |
22e4bd09 | 1279 | struct nci_driver_ops *op; |
b6355e97 | 1280 | |
0a97a3cb | 1281 | if (!ops || !n_ops) |
b6355e97 SO |
1282 | return NULL; |
1283 | ||
0a97a3cb RD |
1284 | for (i = 0; i < n_ops; i++) { |
1285 | op = &ops[i]; | |
1286 | if (op->opcode == opcode) | |
1287 | return op; | |
b6355e97 SO |
1288 | } |
1289 | ||
1290 | return NULL; | |
1291 | } | |
1292 | ||
0a97a3cb | 1293 | static int nci_op_rsp_packet(struct nci_dev *ndev, __u16 rsp_opcode, |
22e4bd09 | 1294 | struct sk_buff *skb, struct nci_driver_ops *ops, |
0a97a3cb | 1295 | size_t n_ops) |
b6355e97 | 1296 | { |
22e4bd09 | 1297 | struct nci_driver_ops *op; |
b6355e97 | 1298 | |
0a97a3cb RD |
1299 | op = ops_cmd_lookup(ops, n_ops, rsp_opcode); |
1300 | if (!op || !op->rsp) | |
b6355e97 SO |
1301 | return -ENOTSUPP; |
1302 | ||
0a97a3cb | 1303 | return op->rsp(ndev, skb); |
b6355e97 SO |
1304 | } |
1305 | ||
0a97a3cb | 1306 | static int nci_op_ntf_packet(struct nci_dev *ndev, __u16 ntf_opcode, |
22e4bd09 | 1307 | struct sk_buff *skb, struct nci_driver_ops *ops, |
0a97a3cb | 1308 | size_t n_ops) |
b6355e97 | 1309 | { |
22e4bd09 | 1310 | struct nci_driver_ops *op; |
b6355e97 | 1311 | |
0a97a3cb RD |
1312 | op = ops_cmd_lookup(ops, n_ops, ntf_opcode); |
1313 | if (!op || !op->ntf) | |
b6355e97 SO |
1314 | return -ENOTSUPP; |
1315 | ||
0a97a3cb RD |
1316 | return op->ntf(ndev, skb); |
1317 | } | |
1318 | ||
f1163174 RD |
1319 | int nci_prop_rsp_packet(struct nci_dev *ndev, __u16 opcode, |
1320 | struct sk_buff *skb) | |
0a97a3cb RD |
1321 | { |
1322 | return nci_op_rsp_packet(ndev, opcode, skb, ndev->ops->prop_ops, | |
1323 | ndev->ops->n_prop_ops); | |
1324 | } | |
1325 | ||
f1163174 RD |
1326 | int nci_prop_ntf_packet(struct nci_dev *ndev, __u16 opcode, |
1327 | struct sk_buff *skb) | |
0a97a3cb RD |
1328 | { |
1329 | return nci_op_ntf_packet(ndev, opcode, skb, ndev->ops->prop_ops, | |
1330 | ndev->ops->n_prop_ops); | |
1331 | } | |
1332 | ||
f1163174 RD |
1333 | int nci_core_rsp_packet(struct nci_dev *ndev, __u16 opcode, |
1334 | struct sk_buff *skb) | |
0a97a3cb RD |
1335 | { |
1336 | return nci_op_rsp_packet(ndev, opcode, skb, ndev->ops->core_ops, | |
1337 | ndev->ops->n_core_ops); | |
1338 | } | |
1339 | ||
f1163174 RD |
1340 | int nci_core_ntf_packet(struct nci_dev *ndev, __u16 opcode, |
1341 | struct sk_buff *skb) | |
0a97a3cb RD |
1342 | { |
1343 | return nci_op_ntf_packet(ndev, opcode, skb, ndev->ops->core_ops, | |
1344 | ndev->ops->n_core_ops); | |
b6355e97 SO |
1345 | } |
1346 | ||
6a2968aa IE |
1347 | /* ---- NCI TX Data worker thread ---- */ |
1348 | ||
1349 | static void nci_tx_work(struct work_struct *work) | |
1350 | { | |
1351 | struct nci_dev *ndev = container_of(work, struct nci_dev, tx_work); | |
4aeee687 | 1352 | struct nci_conn_info *conn_info; |
6a2968aa IE |
1353 | struct sk_buff *skb; |
1354 | ||
4aeee687 CR |
1355 | conn_info = nci_get_conn_info_by_conn_id(ndev, ndev->cur_conn_id); |
1356 | if (!conn_info) | |
1357 | return; | |
1358 | ||
1359 | pr_debug("credits_cnt %d\n", atomic_read(&conn_info->credits_cnt)); | |
6a2968aa IE |
1360 | |
1361 | /* Send queued tx data */ | |
4aeee687 | 1362 | while (atomic_read(&conn_info->credits_cnt)) { |
6a2968aa IE |
1363 | skb = skb_dequeue(&ndev->tx_q); |
1364 | if (!skb) | |
1365 | return; | |
1366 | ||
db98c829 | 1367 | /* Check if data flow control is used */ |
4aeee687 | 1368 | if (atomic_read(&conn_info->credits_cnt) != |
eb9bc6e9 | 1369 | NCI_DATA_FLOW_CONTROL_NOT_USED) |
4aeee687 | 1370 | atomic_dec(&conn_info->credits_cnt); |
6a2968aa | 1371 | |
20c239c1 JP |
1372 | pr_debug("NCI TX: MT=data, PBF=%d, conn_id=%d, plen=%d\n", |
1373 | nci_pbf(skb->data), | |
1374 | nci_conn_id(skb->data), | |
1375 | nci_plen(skb->data)); | |
6a2968aa | 1376 | |
1095e69f | 1377 | nci_send_frame(ndev, skb); |
c4bf98b2 IE |
1378 | |
1379 | mod_timer(&ndev->data_timer, | |
eb9bc6e9 | 1380 | jiffies + msecs_to_jiffies(NCI_DATA_TIMEOUT)); |
6a2968aa IE |
1381 | } |
1382 | } | |
1383 | ||
1384 | /* ----- NCI RX worker thread (data & control) ----- */ | |
1385 | ||
1386 | static void nci_rx_work(struct work_struct *work) | |
1387 | { | |
1388 | struct nci_dev *ndev = container_of(work, struct nci_dev, rx_work); | |
1389 | struct sk_buff *skb; | |
1390 | ||
1391 | while ((skb = skb_dequeue(&ndev->rx_q))) { | |
05158296 HT |
1392 | |
1393 | /* Send copy to sniffer */ | |
1394 | nfc_send_to_raw_sock(ndev->nfc_dev, skb, | |
1395 | RAW_PAYLOAD_NCI, NFC_DIRECTION_RX); | |
1396 | ||
6a2968aa IE |
1397 | /* Process frame */ |
1398 | switch (nci_mt(skb->data)) { | |
1399 | case NCI_MT_RSP_PKT: | |
1400 | nci_rsp_packet(ndev, skb); | |
1401 | break; | |
1402 | ||
1403 | case NCI_MT_NTF_PKT: | |
1404 | nci_ntf_packet(ndev, skb); | |
1405 | break; | |
1406 | ||
1407 | case NCI_MT_DATA_PKT: | |
1408 | nci_rx_data_packet(ndev, skb); | |
1409 | break; | |
1410 | ||
1411 | default: | |
ed1e0ad8 | 1412 | pr_err("unknown MT 0x%x\n", nci_mt(skb->data)); |
6a2968aa IE |
1413 | kfree_skb(skb); |
1414 | break; | |
1415 | } | |
1416 | } | |
c4bf98b2 IE |
1417 | |
1418 | /* check if a data exchange timout has occurred */ | |
1419 | if (test_bit(NCI_DATA_EXCHANGE_TO, &ndev->flags)) { | |
1420 | /* complete the data exchange transaction, if exists */ | |
1421 | if (test_bit(NCI_DATA_EXCHANGE, &ndev->flags)) | |
4aeee687 CR |
1422 | nci_data_exchange_complete(ndev, NULL, |
1423 | ndev->cur_conn_id, | |
1424 | -ETIMEDOUT); | |
c4bf98b2 IE |
1425 | |
1426 | clear_bit(NCI_DATA_EXCHANGE_TO, &ndev->flags); | |
1427 | } | |
6a2968aa IE |
1428 | } |
1429 | ||
1430 | /* ----- NCI TX CMD worker thread ----- */ | |
1431 | ||
1432 | static void nci_cmd_work(struct work_struct *work) | |
1433 | { | |
1434 | struct nci_dev *ndev = container_of(work, struct nci_dev, cmd_work); | |
1435 | struct sk_buff *skb; | |
1436 | ||
24bf3304 | 1437 | pr_debug("cmd_cnt %d\n", atomic_read(&ndev->cmd_cnt)); |
6a2968aa IE |
1438 | |
1439 | /* Send queued command */ | |
1440 | if (atomic_read(&ndev->cmd_cnt)) { | |
1441 | skb = skb_dequeue(&ndev->cmd_q); | |
1442 | if (!skb) | |
1443 | return; | |
1444 | ||
1445 | atomic_dec(&ndev->cmd_cnt); | |
1446 | ||
20c239c1 JP |
1447 | pr_debug("NCI TX: MT=cmd, PBF=%d, GID=0x%x, OID=0x%x, plen=%d\n", |
1448 | nci_pbf(skb->data), | |
1449 | nci_opcode_gid(nci_opcode(skb->data)), | |
1450 | nci_opcode_oid(nci_opcode(skb->data)), | |
1451 | nci_plen(skb->data)); | |
6a2968aa | 1452 | |
1095e69f | 1453 | nci_send_frame(ndev, skb); |
6a2968aa IE |
1454 | |
1455 | mod_timer(&ndev->cmd_timer, | |
eb9bc6e9 | 1456 | jiffies + msecs_to_jiffies(NCI_CMD_TIMEOUT)); |
6a2968aa IE |
1457 | } |
1458 | } | |
8a70e7f8 DJ |
1459 | |
1460 | MODULE_LICENSE("GPL"); |