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c46ee386 AAJ |
1 | /* |
2 | * Copyright (C) 2011 Instituto Nokia de Tecnologia | |
e70b96e9 | 3 | * Copyright (C) 2012-2013 Tieto Poland |
c46ee386 AAJ |
4 | * |
5 | * This program is free software; you can redistribute it and/or modify | |
6 | * it under the terms of the GNU General Public License as published by | |
7 | * the Free Software Foundation; either version 2 of the License, or | |
8 | * (at your option) any later version. | |
9 | * | |
10 | * This program is distributed in the hope that it will be useful, | |
11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
13 | * GNU General Public License for more details. | |
14 | * | |
15 | * You should have received a copy of the GNU General Public License | |
16 | * along with this program; if not, write to the | |
17 | * Free Software Foundation, Inc., | |
18 | * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. | |
19 | */ | |
20 | ||
21 | #include <linux/device.h> | |
22 | #include <linux/kernel.h> | |
23 | #include <linux/module.h> | |
24 | #include <linux/slab.h> | |
25 | #include <linux/usb.h> | |
26 | #include <linux/nfc.h> | |
27 | #include <linux/netdevice.h> | |
55eb94f9 | 28 | #include <net/nfc/nfc.h> |
c46ee386 AAJ |
29 | |
30 | #define VERSION "0.1" | |
31 | ||
32 | #define PN533_VENDOR_ID 0x4CC | |
33 | #define PN533_PRODUCT_ID 0x2533 | |
34 | ||
35 | #define SCM_VENDOR_ID 0x4E6 | |
36 | #define SCL3711_PRODUCT_ID 0x5591 | |
37 | ||
5c7b0531 SO |
38 | #define SONY_VENDOR_ID 0x054c |
39 | #define PASORI_PRODUCT_ID 0x02e1 | |
40 | ||
5c7b0531 SO |
41 | #define PN533_DEVICE_STD 0x1 |
42 | #define PN533_DEVICE_PASORI 0x2 | |
43 | ||
01d719a2 SO |
44 | #define PN533_ALL_PROTOCOLS (NFC_PROTO_JEWEL_MASK | NFC_PROTO_MIFARE_MASK |\ |
45 | NFC_PROTO_FELICA_MASK | NFC_PROTO_ISO14443_MASK |\ | |
46 | NFC_PROTO_NFC_DEP_MASK |\ | |
47 | NFC_PROTO_ISO14443_B_MASK) | |
5c7b0531 SO |
48 | |
49 | #define PN533_NO_TYPE_B_PROTOCOLS (NFC_PROTO_JEWEL_MASK | \ | |
50 | NFC_PROTO_MIFARE_MASK | \ | |
51 | NFC_PROTO_FELICA_MASK | \ | |
01d719a2 | 52 | NFC_PROTO_ISO14443_MASK | \ |
5c7b0531 SO |
53 | NFC_PROTO_NFC_DEP_MASK) |
54 | ||
c46ee386 | 55 | static const struct usb_device_id pn533_table[] = { |
5c7b0531 SO |
56 | { .match_flags = USB_DEVICE_ID_MATCH_DEVICE, |
57 | .idVendor = PN533_VENDOR_ID, | |
58 | .idProduct = PN533_PRODUCT_ID, | |
59 | .driver_info = PN533_DEVICE_STD, | |
60 | }, | |
61 | { .match_flags = USB_DEVICE_ID_MATCH_DEVICE, | |
62 | .idVendor = SCM_VENDOR_ID, | |
63 | .idProduct = SCL3711_PRODUCT_ID, | |
64 | .driver_info = PN533_DEVICE_STD, | |
65 | }, | |
66 | { .match_flags = USB_DEVICE_ID_MATCH_DEVICE, | |
67 | .idVendor = SONY_VENDOR_ID, | |
68 | .idProduct = PASORI_PRODUCT_ID, | |
69 | .driver_info = PN533_DEVICE_PASORI, | |
70 | }, | |
c46ee386 AAJ |
71 | { } |
72 | }; | |
73 | MODULE_DEVICE_TABLE(usb, pn533_table); | |
74 | ||
6fbbdc16 SO |
75 | /* How much time we spend listening for initiators */ |
76 | #define PN533_LISTEN_TIME 2 | |
77 | ||
63123108 WR |
78 | /* Standard pn533 frame definitions */ |
79 | #define PN533_STD_FRAME_HEADER_LEN (sizeof(struct pn533_std_frame) \ | |
b1bb290a | 80 | + 2) /* data[0] TFI, data[1] CC */ |
63123108 | 81 | #define PN533_STD_FRAME_TAIL_LEN 2 /* data[len] DCS, data[len + 1] postamble*/ |
82dec34d | 82 | |
15461aeb WR |
83 | /* |
84 | * Max extended frame payload len, excluding TFI and CC | |
85 | * which are already in PN533_FRAME_HEADER_LEN. | |
86 | */ | |
63123108 | 87 | #define PN533_STD_FRAME_MAX_PAYLOAD_LEN 263 |
15461aeb | 88 | |
63123108 | 89 | #define PN533_STD_FRAME_ACK_SIZE 6 /* Preamble (1), SoPC (2), ACK Code (2), |
5b5a4437 | 90 | Postamble (1) */ |
63123108 WR |
91 | #define PN533_STD_FRAME_CHECKSUM(f) (f->data[f->datalen]) |
92 | #define PN533_STD_FRAME_POSTAMBLE(f) (f->data[f->datalen + 1]) | |
c46ee386 AAJ |
93 | |
94 | /* start of frame */ | |
63123108 | 95 | #define PN533_STD_FRAME_SOF 0x00FF |
c46ee386 | 96 | |
63123108 WR |
97 | /* standard frame identifier: in/out/error */ |
98 | #define PN533_STD_FRAME_IDENTIFIER(f) (f->data[0]) /* TFI */ | |
99 | #define PN533_STD_FRAME_DIR_OUT 0xD4 | |
100 | #define PN533_STD_FRAME_DIR_IN 0xD5 | |
c46ee386 AAJ |
101 | |
102 | /* PN533 Commands */ | |
63123108 | 103 | #define PN533_STD_FRAME_CMD(f) (f->data[1]) |
c46ee386 AAJ |
104 | |
105 | #define PN533_CMD_GET_FIRMWARE_VERSION 0x02 | |
106 | #define PN533_CMD_RF_CONFIGURATION 0x32 | |
107 | #define PN533_CMD_IN_DATA_EXCHANGE 0x40 | |
5c7b0531 | 108 | #define PN533_CMD_IN_COMM_THRU 0x42 |
c46ee386 AAJ |
109 | #define PN533_CMD_IN_LIST_PASSIVE_TARGET 0x4A |
110 | #define PN533_CMD_IN_ATR 0x50 | |
111 | #define PN533_CMD_IN_RELEASE 0x52 | |
361f3cb7 | 112 | #define PN533_CMD_IN_JUMP_FOR_DEP 0x56 |
c46ee386 | 113 | |
ad3823ce | 114 | #define PN533_CMD_TG_INIT_AS_TARGET 0x8c |
103b34cf | 115 | #define PN533_CMD_TG_GET_DATA 0x86 |
dadb06f2 | 116 | #define PN533_CMD_TG_SET_DATA 0x8e |
aada17ac | 117 | #define PN533_CMD_UNDEF 0xff |
ad3823ce | 118 | |
c46ee386 AAJ |
119 | #define PN533_CMD_RESPONSE(cmd) (cmd + 1) |
120 | ||
121 | /* PN533 Return codes */ | |
122 | #define PN533_CMD_RET_MASK 0x3F | |
123 | #define PN533_CMD_MI_MASK 0x40 | |
124 | #define PN533_CMD_RET_SUCCESS 0x00 | |
125 | ||
126 | struct pn533; | |
127 | ||
0c33d262 | 128 | typedef int (*pn533_cmd_complete_t) (struct pn533 *dev, void *arg, int status); |
c46ee386 | 129 | |
aada17ac WR |
130 | typedef int (*pn533_send_async_complete_t) (struct pn533 *dev, void *arg, |
131 | struct sk_buff *resp); | |
132 | ||
c46ee386 AAJ |
133 | /* structs for pn533 commands */ |
134 | ||
135 | /* PN533_CMD_GET_FIRMWARE_VERSION */ | |
136 | struct pn533_fw_version { | |
137 | u8 ic; | |
138 | u8 ver; | |
139 | u8 rev; | |
140 | u8 support; | |
141 | }; | |
142 | ||
143 | /* PN533_CMD_RF_CONFIGURATION */ | |
34a85bfc | 144 | #define PN533_CFGITEM_TIMING 0x02 |
c46ee386 | 145 | #define PN533_CFGITEM_MAX_RETRIES 0x05 |
5c7b0531 | 146 | #define PN533_CFGITEM_PASORI 0x82 |
c46ee386 | 147 | |
34a85bfc SO |
148 | #define PN533_CONFIG_TIMING_102 0xb |
149 | #define PN533_CONFIG_TIMING_204 0xc | |
150 | #define PN533_CONFIG_TIMING_409 0xd | |
151 | #define PN533_CONFIG_TIMING_819 0xe | |
152 | ||
c46ee386 AAJ |
153 | #define PN533_CONFIG_MAX_RETRIES_NO_RETRY 0x00 |
154 | #define PN533_CONFIG_MAX_RETRIES_ENDLESS 0xFF | |
155 | ||
156 | struct pn533_config_max_retries { | |
157 | u8 mx_rty_atr; | |
158 | u8 mx_rty_psl; | |
159 | u8 mx_rty_passive_act; | |
160 | } __packed; | |
161 | ||
34a85bfc SO |
162 | struct pn533_config_timing { |
163 | u8 rfu; | |
164 | u8 atr_res_timeout; | |
165 | u8 dep_timeout; | |
166 | } __packed; | |
167 | ||
c46ee386 AAJ |
168 | /* PN533_CMD_IN_LIST_PASSIVE_TARGET */ |
169 | ||
170 | /* felica commands opcode */ | |
171 | #define PN533_FELICA_OPC_SENSF_REQ 0 | |
172 | #define PN533_FELICA_OPC_SENSF_RES 1 | |
173 | /* felica SENSF_REQ parameters */ | |
174 | #define PN533_FELICA_SENSF_SC_ALL 0xFFFF | |
175 | #define PN533_FELICA_SENSF_RC_NO_SYSTEM_CODE 0 | |
176 | #define PN533_FELICA_SENSF_RC_SYSTEM_CODE 1 | |
177 | #define PN533_FELICA_SENSF_RC_ADVANCED_PROTOCOL 2 | |
178 | ||
179 | /* type B initiator_data values */ | |
180 | #define PN533_TYPE_B_AFI_ALL_FAMILIES 0 | |
181 | #define PN533_TYPE_B_POLL_METHOD_TIMESLOT 0 | |
182 | #define PN533_TYPE_B_POLL_METHOD_PROBABILISTIC 1 | |
183 | ||
184 | union pn533_cmd_poll_initdata { | |
185 | struct { | |
186 | u8 afi; | |
187 | u8 polling_method; | |
188 | } __packed type_b; | |
189 | struct { | |
190 | u8 opcode; | |
191 | __be16 sc; | |
192 | u8 rc; | |
193 | u8 tsn; | |
194 | } __packed felica; | |
195 | }; | |
196 | ||
197 | /* Poll modulations */ | |
198 | enum { | |
199 | PN533_POLL_MOD_106KBPS_A, | |
200 | PN533_POLL_MOD_212KBPS_FELICA, | |
201 | PN533_POLL_MOD_424KBPS_FELICA, | |
202 | PN533_POLL_MOD_106KBPS_JEWEL, | |
203 | PN533_POLL_MOD_847KBPS_B, | |
6fbbdc16 | 204 | PN533_LISTEN_MOD, |
c46ee386 AAJ |
205 | |
206 | __PN533_POLL_MOD_AFTER_LAST, | |
207 | }; | |
208 | #define PN533_POLL_MOD_MAX (__PN533_POLL_MOD_AFTER_LAST - 1) | |
209 | ||
210 | struct pn533_poll_modulations { | |
211 | struct { | |
212 | u8 maxtg; | |
213 | u8 brty; | |
214 | union pn533_cmd_poll_initdata initiator_data; | |
215 | } __packed data; | |
216 | u8 len; | |
217 | }; | |
218 | ||
ef3d56e1 | 219 | static const struct pn533_poll_modulations poll_mod[] = { |
c46ee386 AAJ |
220 | [PN533_POLL_MOD_106KBPS_A] = { |
221 | .data = { | |
222 | .maxtg = 1, | |
223 | .brty = 0, | |
224 | }, | |
225 | .len = 2, | |
226 | }, | |
227 | [PN533_POLL_MOD_212KBPS_FELICA] = { | |
228 | .data = { | |
229 | .maxtg = 1, | |
230 | .brty = 1, | |
231 | .initiator_data.felica = { | |
232 | .opcode = PN533_FELICA_OPC_SENSF_REQ, | |
233 | .sc = PN533_FELICA_SENSF_SC_ALL, | |
234 | .rc = PN533_FELICA_SENSF_RC_NO_SYSTEM_CODE, | |
235 | .tsn = 0, | |
236 | }, | |
237 | }, | |
238 | .len = 7, | |
239 | }, | |
240 | [PN533_POLL_MOD_424KBPS_FELICA] = { | |
241 | .data = { | |
242 | .maxtg = 1, | |
243 | .brty = 2, | |
244 | .initiator_data.felica = { | |
245 | .opcode = PN533_FELICA_OPC_SENSF_REQ, | |
246 | .sc = PN533_FELICA_SENSF_SC_ALL, | |
247 | .rc = PN533_FELICA_SENSF_RC_NO_SYSTEM_CODE, | |
248 | .tsn = 0, | |
249 | }, | |
250 | }, | |
251 | .len = 7, | |
252 | }, | |
253 | [PN533_POLL_MOD_106KBPS_JEWEL] = { | |
254 | .data = { | |
255 | .maxtg = 1, | |
256 | .brty = 4, | |
257 | }, | |
258 | .len = 2, | |
259 | }, | |
260 | [PN533_POLL_MOD_847KBPS_B] = { | |
261 | .data = { | |
262 | .maxtg = 1, | |
263 | .brty = 8, | |
264 | .initiator_data.type_b = { | |
265 | .afi = PN533_TYPE_B_AFI_ALL_FAMILIES, | |
266 | .polling_method = | |
267 | PN533_TYPE_B_POLL_METHOD_TIMESLOT, | |
268 | }, | |
269 | }, | |
270 | .len = 3, | |
271 | }, | |
6fbbdc16 SO |
272 | [PN533_LISTEN_MOD] = { |
273 | .len = 0, | |
274 | }, | |
c46ee386 AAJ |
275 | }; |
276 | ||
277 | /* PN533_CMD_IN_ATR */ | |
278 | ||
c46ee386 AAJ |
279 | struct pn533_cmd_activate_response { |
280 | u8 status; | |
281 | u8 nfcid3t[10]; | |
282 | u8 didt; | |
283 | u8 bst; | |
284 | u8 brt; | |
285 | u8 to; | |
286 | u8 ppt; | |
287 | /* optional */ | |
288 | u8 gt[]; | |
289 | } __packed; | |
290 | ||
361f3cb7 SO |
291 | struct pn533_cmd_jump_dep_response { |
292 | u8 status; | |
293 | u8 tg; | |
294 | u8 nfcid3t[10]; | |
295 | u8 didt; | |
296 | u8 bst; | |
297 | u8 brt; | |
298 | u8 to; | |
299 | u8 ppt; | |
300 | /* optional */ | |
301 | u8 gt[]; | |
302 | } __packed; | |
c46ee386 | 303 | |
ad3823ce SO |
304 | |
305 | /* PN533_TG_INIT_AS_TARGET */ | |
306 | #define PN533_INIT_TARGET_PASSIVE 0x1 | |
307 | #define PN533_INIT_TARGET_DEP 0x2 | |
308 | ||
fc40a8c1 SO |
309 | #define PN533_INIT_TARGET_RESP_FRAME_MASK 0x3 |
310 | #define PN533_INIT_TARGET_RESP_ACTIVE 0x1 | |
311 | #define PN533_INIT_TARGET_RESP_DEP 0x4 | |
312 | ||
c46ee386 AAJ |
313 | struct pn533 { |
314 | struct usb_device *udev; | |
315 | struct usb_interface *interface; | |
316 | struct nfc_dev *nfc_dev; | |
d5590bba | 317 | u32 device_type; |
c46ee386 AAJ |
318 | |
319 | struct urb *out_urb; | |
c46ee386 | 320 | struct urb *in_urb; |
c46ee386 | 321 | |
6ff73fd2 SO |
322 | struct sk_buff_head resp_q; |
323 | ||
4849f85e SO |
324 | struct workqueue_struct *wq; |
325 | struct work_struct cmd_work; | |
5d50b364 | 326 | struct work_struct cmd_complete_work; |
6fbbdc16 | 327 | struct work_struct poll_work; |
6ff73fd2 | 328 | struct work_struct mi_work; |
103b34cf | 329 | struct work_struct tg_work; |
d5590bba WR |
330 | |
331 | struct list_head cmd_queue; | |
332 | struct pn533_cmd *cmd; | |
333 | u8 cmd_pending; | |
4849f85e | 334 | int wq_in_error; |
d5590bba | 335 | struct mutex cmd_lock; /* protects cmd queue */ |
c46ee386 | 336 | |
b1e666f5 | 337 | void *cmd_complete_mi_arg; |
c46ee386 AAJ |
338 | |
339 | struct pn533_poll_modulations *poll_mod_active[PN533_POLL_MOD_MAX + 1]; | |
340 | u8 poll_mod_count; | |
341 | u8 poll_mod_curr; | |
342 | u32 poll_protocols; | |
6fbbdc16 | 343 | u32 listen_protocols; |
d5590bba WR |
344 | struct timer_list listen_timer; |
345 | int cancel_listen; | |
6fbbdc16 SO |
346 | |
347 | u8 *gb; | |
348 | size_t gb_len; | |
c46ee386 AAJ |
349 | |
350 | u8 tgt_available_prots; | |
351 | u8 tgt_active_prot; | |
51ad304c | 352 | u8 tgt_mode; |
5c7b0531 | 353 | |
9e2d493e | 354 | struct pn533_frame_ops *ops; |
5d50b364 SO |
355 | }; |
356 | ||
357 | struct pn533_cmd { | |
358 | struct list_head queue; | |
4b2a9532 | 359 | u8 code; |
aada17ac WR |
360 | struct sk_buff *req; |
361 | struct sk_buff *resp; | |
9e2d493e | 362 | int resp_len; |
4231604b WR |
363 | pn533_send_async_complete_t complete_cb; |
364 | void *complete_cb_context; | |
c46ee386 AAJ |
365 | }; |
366 | ||
63123108 | 367 | struct pn533_std_frame { |
c46ee386 AAJ |
368 | u8 preamble; |
369 | __be16 start_frame; | |
370 | u8 datalen; | |
371 | u8 datalen_checksum; | |
372 | u8 data[]; | |
373 | } __packed; | |
374 | ||
9e2d493e WR |
375 | struct pn533_frame_ops { |
376 | void (*tx_frame_init)(void *frame, u8 cmd_code); | |
377 | void (*tx_frame_finish)(void *frame); | |
378 | void (*tx_update_payload_len)(void *frame, int len); | |
379 | int tx_header_len; | |
380 | int tx_tail_len; | |
381 | ||
382 | bool (*rx_is_frame_valid)(void *frame); | |
383 | int (*rx_frame_size)(void *frame); | |
384 | int rx_header_len; | |
385 | int rx_tail_len; | |
386 | ||
387 | int max_payload_len; | |
388 | u8 (*get_cmd_code)(void *frame); | |
389 | }; | |
390 | ||
c46ee386 | 391 | /* The rule: value + checksum = 0 */ |
63123108 | 392 | static inline u8 pn533_std_checksum(u8 value) |
c46ee386 AAJ |
393 | { |
394 | return ~value + 1; | |
395 | } | |
396 | ||
397 | /* The rule: sum(data elements) + checksum = 0 */ | |
63123108 | 398 | static u8 pn533_std_data_checksum(u8 *data, int datalen) |
c46ee386 AAJ |
399 | { |
400 | u8 sum = 0; | |
401 | int i; | |
402 | ||
403 | for (i = 0; i < datalen; i++) | |
404 | sum += data[i]; | |
405 | ||
63123108 | 406 | return pn533_std_checksum(sum); |
c46ee386 AAJ |
407 | } |
408 | ||
63123108 | 409 | static void pn533_std_tx_frame_init(void *_frame, u8 cmd_code) |
c46ee386 | 410 | { |
63123108 | 411 | struct pn533_std_frame *frame = _frame; |
9e2d493e | 412 | |
c46ee386 | 413 | frame->preamble = 0; |
63123108 WR |
414 | frame->start_frame = cpu_to_be16(PN533_STD_FRAME_SOF); |
415 | PN533_STD_FRAME_IDENTIFIER(frame) = PN533_STD_FRAME_DIR_OUT; | |
416 | PN533_STD_FRAME_CMD(frame) = cmd_code; | |
c46ee386 AAJ |
417 | frame->datalen = 2; |
418 | } | |
419 | ||
63123108 | 420 | static void pn533_std_tx_frame_finish(void *_frame) |
c46ee386 | 421 | { |
63123108 | 422 | struct pn533_std_frame *frame = _frame; |
9e2d493e | 423 | |
63123108 | 424 | frame->datalen_checksum = pn533_std_checksum(frame->datalen); |
c46ee386 | 425 | |
63123108 WR |
426 | PN533_STD_FRAME_CHECKSUM(frame) = |
427 | pn533_std_data_checksum(frame->data, frame->datalen); | |
c46ee386 | 428 | |
63123108 | 429 | PN533_STD_FRAME_POSTAMBLE(frame) = 0; |
c46ee386 AAJ |
430 | } |
431 | ||
63123108 | 432 | static void pn533_std_tx_update_payload_len(void *_frame, int len) |
9e2d493e | 433 | { |
63123108 | 434 | struct pn533_std_frame *frame = _frame; |
9e2d493e WR |
435 | |
436 | frame->datalen += len; | |
437 | } | |
438 | ||
63123108 | 439 | static bool pn533_std_rx_frame_is_valid(void *_frame) |
c46ee386 AAJ |
440 | { |
441 | u8 checksum; | |
63123108 | 442 | struct pn533_std_frame *frame = _frame; |
c46ee386 | 443 | |
63123108 | 444 | if (frame->start_frame != cpu_to_be16(PN533_STD_FRAME_SOF)) |
c46ee386 AAJ |
445 | return false; |
446 | ||
63123108 | 447 | checksum = pn533_std_checksum(frame->datalen); |
c46ee386 AAJ |
448 | if (checksum != frame->datalen_checksum) |
449 | return false; | |
450 | ||
63123108 WR |
451 | checksum = pn533_std_data_checksum(frame->data, frame->datalen); |
452 | if (checksum != PN533_STD_FRAME_CHECKSUM(frame)) | |
c46ee386 AAJ |
453 | return false; |
454 | ||
455 | return true; | |
456 | } | |
457 | ||
63123108 | 458 | static bool pn533_std_rx_frame_is_ack(struct pn533_std_frame *frame) |
c46ee386 | 459 | { |
63123108 | 460 | if (frame->start_frame != cpu_to_be16(PN533_STD_FRAME_SOF)) |
c46ee386 AAJ |
461 | return false; |
462 | ||
463 | if (frame->datalen != 0 || frame->datalen_checksum != 0xFF) | |
464 | return false; | |
465 | ||
466 | return true; | |
467 | } | |
468 | ||
63123108 | 469 | static inline int pn533_std_rx_frame_size(void *frame) |
9e2d493e | 470 | { |
63123108 | 471 | struct pn533_std_frame *f = frame; |
9e2d493e | 472 | |
63123108 WR |
473 | return sizeof(struct pn533_std_frame) + f->datalen + |
474 | PN533_STD_FRAME_TAIL_LEN; | |
9e2d493e WR |
475 | } |
476 | ||
63123108 | 477 | static u8 pn533_std_get_cmd_code(void *frame) |
9e2d493e | 478 | { |
63123108 | 479 | struct pn533_std_frame *f = frame; |
9e2d493e | 480 | |
63123108 | 481 | return PN533_STD_FRAME_CMD(f); |
9e2d493e WR |
482 | } |
483 | ||
ef3d56e1 | 484 | static struct pn533_frame_ops pn533_std_frame_ops = { |
63123108 WR |
485 | .tx_frame_init = pn533_std_tx_frame_init, |
486 | .tx_frame_finish = pn533_std_tx_frame_finish, | |
487 | .tx_update_payload_len = pn533_std_tx_update_payload_len, | |
488 | .tx_header_len = PN533_STD_FRAME_HEADER_LEN, | |
489 | .tx_tail_len = PN533_STD_FRAME_TAIL_LEN, | |
490 | ||
491 | .rx_is_frame_valid = pn533_std_rx_frame_is_valid, | |
492 | .rx_frame_size = pn533_std_rx_frame_size, | |
493 | .rx_header_len = PN533_STD_FRAME_HEADER_LEN, | |
494 | .rx_tail_len = PN533_STD_FRAME_TAIL_LEN, | |
495 | ||
496 | .max_payload_len = PN533_STD_FRAME_MAX_PAYLOAD_LEN, | |
497 | .get_cmd_code = pn533_std_get_cmd_code, | |
9e2d493e WR |
498 | }; |
499 | ||
500 | static bool pn533_rx_frame_is_cmd_response(struct pn533 *dev, void *frame) | |
c46ee386 | 501 | { |
2c206fb7 | 502 | return (dev->ops->get_cmd_code(frame) == |
4b2a9532 | 503 | PN533_CMD_RESPONSE(dev->cmd->code)); |
c46ee386 AAJ |
504 | } |
505 | ||
c46ee386 AAJ |
506 | static void pn533_recv_response(struct urb *urb) |
507 | { | |
508 | struct pn533 *dev = urb->context; | |
9e2d493e | 509 | u8 *in_frame; |
c46ee386 | 510 | |
c46ee386 AAJ |
511 | switch (urb->status) { |
512 | case 0: | |
f8f99171 | 513 | break; /* success */ |
c46ee386 AAJ |
514 | case -ECONNRESET: |
515 | case -ENOENT: | |
6ca55372 | 516 | nfc_dev_dbg(&dev->interface->dev, |
f8f99171 WR |
517 | "The urb has been canceled (status %d)", |
518 | urb->status); | |
4849f85e SO |
519 | dev->wq_in_error = urb->status; |
520 | goto sched_wq; | |
f8f99171 | 521 | case -ESHUTDOWN: |
c46ee386 | 522 | default: |
6ca55372 | 523 | nfc_dev_err(&dev->interface->dev, |
f8f99171 | 524 | "Urb failure (status %d)", urb->status); |
4849f85e SO |
525 | dev->wq_in_error = urb->status; |
526 | goto sched_wq; | |
c46ee386 AAJ |
527 | } |
528 | ||
529 | in_frame = dev->in_urb->transfer_buffer; | |
530 | ||
fcfafc76 | 531 | nfc_dev_dbg(&dev->interface->dev, "Received a frame."); |
e279f84f SO |
532 | print_hex_dump_debug("PN533 RX: ", DUMP_PREFIX_NONE, 16, 1, in_frame, |
533 | dev->ops->rx_frame_size(in_frame), false); | |
99e591be | 534 | |
9e2d493e | 535 | if (!dev->ops->rx_is_frame_valid(in_frame)) { |
c46ee386 | 536 | nfc_dev_err(&dev->interface->dev, "Received an invalid frame"); |
4849f85e SO |
537 | dev->wq_in_error = -EIO; |
538 | goto sched_wq; | |
c46ee386 AAJ |
539 | } |
540 | ||
9e2d493e | 541 | if (!pn533_rx_frame_is_cmd_response(dev, in_frame)) { |
6ca55372 WR |
542 | nfc_dev_err(&dev->interface->dev, |
543 | "It it not the response to the last command"); | |
4849f85e SO |
544 | dev->wq_in_error = -EIO; |
545 | goto sched_wq; | |
c46ee386 AAJ |
546 | } |
547 | ||
4849f85e | 548 | dev->wq_in_error = 0; |
c46ee386 | 549 | |
4849f85e | 550 | sched_wq: |
5d50b364 | 551 | queue_work(dev->wq, &dev->cmd_complete_work); |
c46ee386 AAJ |
552 | } |
553 | ||
554 | static int pn533_submit_urb_for_response(struct pn533 *dev, gfp_t flags) | |
555 | { | |
556 | dev->in_urb->complete = pn533_recv_response; | |
557 | ||
558 | return usb_submit_urb(dev->in_urb, flags); | |
559 | } | |
560 | ||
561 | static void pn533_recv_ack(struct urb *urb) | |
562 | { | |
563 | struct pn533 *dev = urb->context; | |
63123108 | 564 | struct pn533_std_frame *in_frame; |
c46ee386 AAJ |
565 | int rc; |
566 | ||
567 | switch (urb->status) { | |
568 | case 0: | |
f8f99171 | 569 | break; /* success */ |
c46ee386 AAJ |
570 | case -ECONNRESET: |
571 | case -ENOENT: | |
6ca55372 | 572 | nfc_dev_dbg(&dev->interface->dev, |
f8f99171 WR |
573 | "The urb has been stopped (status %d)", |
574 | urb->status); | |
4849f85e SO |
575 | dev->wq_in_error = urb->status; |
576 | goto sched_wq; | |
f8f99171 | 577 | case -ESHUTDOWN: |
c46ee386 | 578 | default: |
6ca55372 | 579 | nfc_dev_err(&dev->interface->dev, |
f8f99171 | 580 | "Urb failure (status %d)", urb->status); |
4849f85e SO |
581 | dev->wq_in_error = urb->status; |
582 | goto sched_wq; | |
c46ee386 AAJ |
583 | } |
584 | ||
585 | in_frame = dev->in_urb->transfer_buffer; | |
586 | ||
63123108 | 587 | if (!pn533_std_rx_frame_is_ack(in_frame)) { |
c46ee386 | 588 | nfc_dev_err(&dev->interface->dev, "Received an invalid ack"); |
4849f85e SO |
589 | dev->wq_in_error = -EIO; |
590 | goto sched_wq; | |
c46ee386 AAJ |
591 | } |
592 | ||
c46ee386 AAJ |
593 | rc = pn533_submit_urb_for_response(dev, GFP_ATOMIC); |
594 | if (rc) { | |
6ca55372 WR |
595 | nfc_dev_err(&dev->interface->dev, |
596 | "usb_submit_urb failed with result %d", rc); | |
4849f85e SO |
597 | dev->wq_in_error = rc; |
598 | goto sched_wq; | |
c46ee386 AAJ |
599 | } |
600 | ||
601 | return; | |
602 | ||
4849f85e | 603 | sched_wq: |
5d50b364 | 604 | queue_work(dev->wq, &dev->cmd_complete_work); |
c46ee386 AAJ |
605 | } |
606 | ||
607 | static int pn533_submit_urb_for_ack(struct pn533 *dev, gfp_t flags) | |
608 | { | |
609 | dev->in_urb->complete = pn533_recv_ack; | |
610 | ||
611 | return usb_submit_urb(dev->in_urb, flags); | |
612 | } | |
613 | ||
614 | static int pn533_send_ack(struct pn533 *dev, gfp_t flags) | |
615 | { | |
63123108 | 616 | u8 ack[PN533_STD_FRAME_ACK_SIZE] = {0x00, 0x00, 0xff, 0x00, 0xff, 0x00}; |
5b5a4437 | 617 | /* spec 7.1.1.3: Preamble, SoPC (2), ACK Code (2), Postamble */ |
c46ee386 AAJ |
618 | int rc; |
619 | ||
620 | nfc_dev_dbg(&dev->interface->dev, "%s", __func__); | |
621 | ||
5b5a4437 WR |
622 | dev->out_urb->transfer_buffer = ack; |
623 | dev->out_urb->transfer_buffer_length = sizeof(ack); | |
c46ee386 AAJ |
624 | rc = usb_submit_urb(dev->out_urb, flags); |
625 | ||
626 | return rc; | |
627 | } | |
628 | ||
e8f40531 WR |
629 | static int __pn533_send_frame_async(struct pn533 *dev, |
630 | struct sk_buff *out, | |
631 | struct sk_buff *in, | |
ddf19d20 | 632 | int in_len) |
c46ee386 AAJ |
633 | { |
634 | int rc; | |
635 | ||
e8f40531 WR |
636 | dev->out_urb->transfer_buffer = out->data; |
637 | dev->out_urb->transfer_buffer_length = out->len; | |
c46ee386 | 638 | |
e8f40531 WR |
639 | dev->in_urb->transfer_buffer = in->data; |
640 | dev->in_urb->transfer_buffer_length = in_len; | |
c46ee386 | 641 | |
e279f84f SO |
642 | print_hex_dump_debug("PN533 TX: ", DUMP_PREFIX_NONE, 16, 1, |
643 | out->data, out->len, false); | |
99e591be | 644 | |
d94ea4f5 | 645 | rc = usb_submit_urb(dev->out_urb, GFP_KERNEL); |
c46ee386 AAJ |
646 | if (rc) |
647 | return rc; | |
648 | ||
d94ea4f5 | 649 | rc = pn533_submit_urb_for_ack(dev, GFP_KERNEL); |
c46ee386 AAJ |
650 | if (rc) |
651 | goto error; | |
652 | ||
653 | return 0; | |
654 | ||
655 | error: | |
656 | usb_unlink_urb(dev->out_urb); | |
657 | return rc; | |
658 | } | |
659 | ||
9e2d493e WR |
660 | static void pn533_build_cmd_frame(struct pn533 *dev, u8 cmd_code, |
661 | struct sk_buff *skb) | |
aada17ac | 662 | { |
aada17ac WR |
663 | /* payload is already there, just update datalen */ |
664 | int payload_len = skb->len; | |
9e2d493e | 665 | struct pn533_frame_ops *ops = dev->ops; |
aada17ac | 666 | |
aada17ac | 667 | |
9e2d493e WR |
668 | skb_push(skb, ops->tx_header_len); |
669 | skb_put(skb, ops->tx_tail_len); | |
aada17ac | 670 | |
9e2d493e WR |
671 | ops->tx_frame_init(skb->data, cmd_code); |
672 | ops->tx_update_payload_len(skb->data, payload_len); | |
673 | ops->tx_frame_finish(skb->data); | |
aada17ac WR |
674 | } |
675 | ||
ddf19d20 | 676 | static int pn533_send_async_complete(struct pn533 *dev) |
aada17ac | 677 | { |
ddf19d20 WR |
678 | struct pn533_cmd *cmd = dev->cmd; |
679 | int status = dev->wq_in_error; | |
aada17ac | 680 | |
4231604b WR |
681 | struct sk_buff *req = cmd->req; |
682 | struct sk_buff *resp = cmd->resp; | |
aada17ac | 683 | |
aada17ac WR |
684 | int rc; |
685 | ||
686 | dev_kfree_skb(req); | |
687 | ||
0c33d262 | 688 | if (status < 0) { |
4231604b WR |
689 | rc = cmd->complete_cb(dev, cmd->complete_cb_context, |
690 | ERR_PTR(status)); | |
aada17ac | 691 | dev_kfree_skb(resp); |
2c206fb7 | 692 | goto done; |
aada17ac WR |
693 | } |
694 | ||
9e2d493e WR |
695 | skb_put(resp, dev->ops->rx_frame_size(resp->data)); |
696 | skb_pull(resp, dev->ops->rx_header_len); | |
697 | skb_trim(resp, resp->len - dev->ops->rx_tail_len); | |
aada17ac | 698 | |
4231604b | 699 | rc = cmd->complete_cb(dev, cmd->complete_cb_context, resp); |
aada17ac | 700 | |
2c206fb7 | 701 | done: |
4231604b | 702 | kfree(cmd); |
2c206fb7 | 703 | dev->cmd = NULL; |
aada17ac WR |
704 | return rc; |
705 | } | |
706 | ||
707 | static int __pn533_send_async(struct pn533 *dev, u8 cmd_code, | |
708 | struct sk_buff *req, struct sk_buff *resp, | |
709 | int resp_len, | |
710 | pn533_send_async_complete_t complete_cb, | |
711 | void *complete_cb_context) | |
712 | { | |
713 | struct pn533_cmd *cmd; | |
aada17ac WR |
714 | int rc = 0; |
715 | ||
fcfafc76 | 716 | nfc_dev_dbg(&dev->interface->dev, "Sending command 0x%x", cmd_code); |
aada17ac | 717 | |
4231604b WR |
718 | cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); |
719 | if (!cmd) | |
aada17ac WR |
720 | return -ENOMEM; |
721 | ||
4b2a9532 | 722 | cmd->code = cmd_code; |
4231604b WR |
723 | cmd->req = req; |
724 | cmd->resp = resp; | |
725 | cmd->resp_len = resp_len; | |
726 | cmd->complete_cb = complete_cb; | |
727 | cmd->complete_cb_context = complete_cb_context; | |
aada17ac | 728 | |
9e2d493e | 729 | pn533_build_cmd_frame(dev, cmd_code, req); |
aada17ac WR |
730 | |
731 | mutex_lock(&dev->cmd_lock); | |
732 | ||
733 | if (!dev->cmd_pending) { | |
ddf19d20 | 734 | rc = __pn533_send_frame_async(dev, req, resp, resp_len); |
aada17ac WR |
735 | if (rc) |
736 | goto error; | |
737 | ||
738 | dev->cmd_pending = 1; | |
2c206fb7 | 739 | dev->cmd = cmd; |
aada17ac WR |
740 | goto unlock; |
741 | } | |
742 | ||
fcfafc76 WR |
743 | nfc_dev_dbg(&dev->interface->dev, "%s Queueing command 0x%x", __func__, |
744 | cmd_code); | |
aada17ac | 745 | |
aada17ac | 746 | INIT_LIST_HEAD(&cmd->queue); |
aada17ac WR |
747 | list_add_tail(&cmd->queue, &dev->cmd_queue); |
748 | ||
749 | goto unlock; | |
750 | ||
751 | error: | |
4231604b | 752 | kfree(cmd); |
aada17ac WR |
753 | unlock: |
754 | mutex_unlock(&dev->cmd_lock); | |
755 | return rc; | |
15461aeb WR |
756 | } |
757 | ||
758 | static int pn533_send_data_async(struct pn533 *dev, u8 cmd_code, | |
759 | struct sk_buff *req, | |
760 | pn533_send_async_complete_t complete_cb, | |
761 | void *complete_cb_context) | |
762 | { | |
763 | struct sk_buff *resp; | |
764 | int rc; | |
9e2d493e WR |
765 | int resp_len = dev->ops->rx_header_len + |
766 | dev->ops->max_payload_len + | |
767 | dev->ops->rx_tail_len; | |
15461aeb | 768 | |
15461aeb WR |
769 | resp = nfc_alloc_recv_skb(resp_len, GFP_KERNEL); |
770 | if (!resp) | |
771 | return -ENOMEM; | |
772 | ||
773 | rc = __pn533_send_async(dev, cmd_code, req, resp, resp_len, complete_cb, | |
774 | complete_cb_context); | |
775 | if (rc) | |
776 | dev_kfree_skb(resp); | |
777 | ||
778 | return rc; | |
aada17ac WR |
779 | } |
780 | ||
781 | static int pn533_send_cmd_async(struct pn533 *dev, u8 cmd_code, | |
782 | struct sk_buff *req, | |
783 | pn533_send_async_complete_t complete_cb, | |
784 | void *complete_cb_context) | |
785 | { | |
786 | struct sk_buff *resp; | |
787 | int rc; | |
9e2d493e WR |
788 | int resp_len = dev->ops->rx_header_len + |
789 | dev->ops->max_payload_len + | |
790 | dev->ops->rx_tail_len; | |
aada17ac | 791 | |
9e2d493e | 792 | resp = alloc_skb(resp_len, GFP_KERNEL); |
aada17ac WR |
793 | if (!resp) |
794 | return -ENOMEM; | |
795 | ||
9e2d493e WR |
796 | rc = __pn533_send_async(dev, cmd_code, req, resp, resp_len, complete_cb, |
797 | complete_cb_context); | |
aada17ac WR |
798 | if (rc) |
799 | dev_kfree_skb(resp); | |
800 | ||
801 | return rc; | |
802 | } | |
803 | ||
b1e666f5 WR |
804 | /* |
805 | * pn533_send_cmd_direct_async | |
806 | * | |
807 | * The function sends a piority cmd directly to the chip omiting the cmd | |
808 | * queue. It's intended to be used by chaining mechanism of received responses | |
809 | * where the host has to request every single chunk of data before scheduling | |
810 | * next cmd from the queue. | |
811 | */ | |
812 | static int pn533_send_cmd_direct_async(struct pn533 *dev, u8 cmd_code, | |
813 | struct sk_buff *req, | |
814 | pn533_send_async_complete_t complete_cb, | |
815 | void *complete_cb_context) | |
816 | { | |
b1e666f5 | 817 | struct sk_buff *resp; |
4231604b | 818 | struct pn533_cmd *cmd; |
b1e666f5 | 819 | int rc; |
9e2d493e WR |
820 | int resp_len = dev->ops->rx_header_len + |
821 | dev->ops->max_payload_len + | |
822 | dev->ops->rx_tail_len; | |
b1e666f5 | 823 | |
b1e666f5 WR |
824 | resp = alloc_skb(resp_len, GFP_KERNEL); |
825 | if (!resp) | |
826 | return -ENOMEM; | |
827 | ||
4231604b WR |
828 | cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); |
829 | if (!cmd) { | |
b1e666f5 WR |
830 | dev_kfree_skb(resp); |
831 | return -ENOMEM; | |
832 | } | |
833 | ||
4b2a9532 | 834 | cmd->code = cmd_code; |
4231604b WR |
835 | cmd->req = req; |
836 | cmd->resp = resp; | |
837 | cmd->resp_len = resp_len; | |
838 | cmd->complete_cb = complete_cb; | |
839 | cmd->complete_cb_context = complete_cb_context; | |
b1e666f5 | 840 | |
9e2d493e | 841 | pn533_build_cmd_frame(dev, cmd_code, req); |
b1e666f5 | 842 | |
ddf19d20 | 843 | rc = __pn533_send_frame_async(dev, req, resp, resp_len); |
b1e666f5 WR |
844 | if (rc < 0) { |
845 | dev_kfree_skb(resp); | |
4231604b | 846 | kfree(cmd); |
2c206fb7 WR |
847 | } else { |
848 | dev->cmd = cmd; | |
b1e666f5 WR |
849 | } |
850 | ||
851 | return rc; | |
852 | } | |
853 | ||
c79490e1 WR |
854 | static void pn533_wq_cmd_complete(struct work_struct *work) |
855 | { | |
856 | struct pn533 *dev = container_of(work, struct pn533, cmd_complete_work); | |
857 | int rc; | |
858 | ||
859 | rc = pn533_send_async_complete(dev); | |
860 | if (rc != -EINPROGRESS) | |
861 | queue_work(dev->wq, &dev->cmd_work); | |
862 | } | |
863 | ||
5d50b364 SO |
864 | static void pn533_wq_cmd(struct work_struct *work) |
865 | { | |
866 | struct pn533 *dev = container_of(work, struct pn533, cmd_work); | |
867 | struct pn533_cmd *cmd; | |
0ce1fbdd | 868 | int rc; |
5d50b364 SO |
869 | |
870 | mutex_lock(&dev->cmd_lock); | |
871 | ||
872 | if (list_empty(&dev->cmd_queue)) { | |
873 | dev->cmd_pending = 0; | |
874 | mutex_unlock(&dev->cmd_lock); | |
875 | return; | |
876 | } | |
877 | ||
878 | cmd = list_first_entry(&dev->cmd_queue, struct pn533_cmd, queue); | |
879 | ||
60ad07ab SJ |
880 | list_del(&cmd->queue); |
881 | ||
5d50b364 SO |
882 | mutex_unlock(&dev->cmd_lock); |
883 | ||
ddf19d20 | 884 | rc = __pn533_send_frame_async(dev, cmd->req, cmd->resp, cmd->resp_len); |
0ce1fbdd WR |
885 | if (rc < 0) { |
886 | dev_kfree_skb(cmd->req); | |
887 | dev_kfree_skb(cmd->resp); | |
4231604b | 888 | kfree(cmd); |
2c206fb7 | 889 | return; |
0ce1fbdd | 890 | } |
2c206fb7 WR |
891 | |
892 | dev->cmd = cmd; | |
5d50b364 SO |
893 | } |
894 | ||
c46ee386 | 895 | struct pn533_sync_cmd_response { |
94c5c156 | 896 | struct sk_buff *resp; |
c46ee386 AAJ |
897 | struct completion done; |
898 | }; | |
899 | ||
94c5c156 WR |
900 | static int pn533_send_sync_complete(struct pn533 *dev, void *_arg, |
901 | struct sk_buff *resp) | |
902 | { | |
903 | struct pn533_sync_cmd_response *arg = _arg; | |
904 | ||
94c5c156 WR |
905 | arg->resp = resp; |
906 | complete(&arg->done); | |
907 | ||
908 | return 0; | |
909 | } | |
910 | ||
911 | /* pn533_send_cmd_sync | |
912 | * | |
913 | * Please note the req parameter is freed inside the function to | |
914 | * limit a number of return value interpretations by the caller. | |
915 | * | |
916 | * 1. negative in case of error during TX path -> req should be freed | |
917 | * | |
918 | * 2. negative in case of error during RX path -> req should not be freed | |
919 | * as it's been already freed at the begining of RX path by | |
920 | * async_complete_cb. | |
921 | * | |
922 | * 3. valid pointer in case of succesfult RX path | |
923 | * | |
924 | * A caller has to check a return value with IS_ERR macro. If the test pass, | |
925 | * the returned pointer is valid. | |
926 | * | |
927 | * */ | |
928 | static struct sk_buff *pn533_send_cmd_sync(struct pn533 *dev, u8 cmd_code, | |
929 | struct sk_buff *req) | |
930 | { | |
931 | int rc; | |
932 | struct pn533_sync_cmd_response arg; | |
933 | ||
94c5c156 WR |
934 | init_completion(&arg.done); |
935 | ||
936 | rc = pn533_send_cmd_async(dev, cmd_code, req, | |
937 | pn533_send_sync_complete, &arg); | |
938 | if (rc) { | |
939 | dev_kfree_skb(req); | |
940 | return ERR_PTR(rc); | |
941 | } | |
942 | ||
943 | wait_for_completion(&arg.done); | |
944 | ||
945 | return arg.resp; | |
946 | } | |
947 | ||
c46ee386 AAJ |
948 | static void pn533_send_complete(struct urb *urb) |
949 | { | |
950 | struct pn533 *dev = urb->context; | |
951 | ||
c46ee386 AAJ |
952 | switch (urb->status) { |
953 | case 0: | |
f8f99171 | 954 | break; /* success */ |
c46ee386 AAJ |
955 | case -ECONNRESET: |
956 | case -ENOENT: | |
6ca55372 | 957 | nfc_dev_dbg(&dev->interface->dev, |
f8f99171 WR |
958 | "The urb has been stopped (status %d)", |
959 | urb->status); | |
c46ee386 | 960 | break; |
f8f99171 | 961 | case -ESHUTDOWN: |
c46ee386 | 962 | default: |
f8f99171 WR |
963 | nfc_dev_err(&dev->interface->dev, |
964 | "Urb failure (status %d)", urb->status); | |
c46ee386 AAJ |
965 | } |
966 | } | |
967 | ||
9e2d493e | 968 | static struct sk_buff *pn533_alloc_skb(struct pn533 *dev, unsigned int size) |
d22b2db6 WR |
969 | { |
970 | struct sk_buff *skb; | |
971 | ||
9e2d493e | 972 | skb = alloc_skb(dev->ops->tx_header_len + |
d22b2db6 | 973 | size + |
9e2d493e | 974 | dev->ops->tx_tail_len, GFP_KERNEL); |
d22b2db6 WR |
975 | |
976 | if (skb) | |
9e2d493e | 977 | skb_reserve(skb, dev->ops->tx_header_len); |
d22b2db6 WR |
978 | |
979 | return skb; | |
980 | } | |
981 | ||
c46ee386 AAJ |
982 | struct pn533_target_type_a { |
983 | __be16 sens_res; | |
984 | u8 sel_res; | |
985 | u8 nfcid_len; | |
986 | u8 nfcid_data[]; | |
987 | } __packed; | |
988 | ||
989 | ||
990 | #define PN533_TYPE_A_SENS_RES_NFCID1(x) ((u8)((be16_to_cpu(x) & 0x00C0) >> 6)) | |
991 | #define PN533_TYPE_A_SENS_RES_SSD(x) ((u8)((be16_to_cpu(x) & 0x001F) >> 0)) | |
992 | #define PN533_TYPE_A_SENS_RES_PLATCONF(x) ((u8)((be16_to_cpu(x) & 0x0F00) >> 8)) | |
993 | ||
994 | #define PN533_TYPE_A_SENS_RES_SSD_JEWEL 0x00 | |
995 | #define PN533_TYPE_A_SENS_RES_PLATCONF_JEWEL 0x0C | |
996 | ||
997 | #define PN533_TYPE_A_SEL_PROT(x) (((x) & 0x60) >> 5) | |
998 | #define PN533_TYPE_A_SEL_CASCADE(x) (((x) & 0x04) >> 2) | |
999 | ||
1000 | #define PN533_TYPE_A_SEL_PROT_MIFARE 0 | |
1001 | #define PN533_TYPE_A_SEL_PROT_ISO14443 1 | |
1002 | #define PN533_TYPE_A_SEL_PROT_DEP 2 | |
1003 | #define PN533_TYPE_A_SEL_PROT_ISO14443_DEP 3 | |
1004 | ||
1005 | static bool pn533_target_type_a_is_valid(struct pn533_target_type_a *type_a, | |
1006 | int target_data_len) | |
1007 | { | |
1008 | u8 ssd; | |
1009 | u8 platconf; | |
1010 | ||
1011 | if (target_data_len < sizeof(struct pn533_target_type_a)) | |
1012 | return false; | |
1013 | ||
1014 | /* The lenght check of nfcid[] and ats[] are not being performed because | |
1015 | the values are not being used */ | |
1016 | ||
1017 | /* Requirement 4.6.3.3 from NFC Forum Digital Spec */ | |
1018 | ssd = PN533_TYPE_A_SENS_RES_SSD(type_a->sens_res); | |
1019 | platconf = PN533_TYPE_A_SENS_RES_PLATCONF(type_a->sens_res); | |
1020 | ||
1021 | if ((ssd == PN533_TYPE_A_SENS_RES_SSD_JEWEL && | |
5d467742 WR |
1022 | platconf != PN533_TYPE_A_SENS_RES_PLATCONF_JEWEL) || |
1023 | (ssd != PN533_TYPE_A_SENS_RES_SSD_JEWEL && | |
1024 | platconf == PN533_TYPE_A_SENS_RES_PLATCONF_JEWEL)) | |
c46ee386 AAJ |
1025 | return false; |
1026 | ||
1027 | /* Requirements 4.8.2.1, 4.8.2.3, 4.8.2.5 and 4.8.2.7 from NFC Forum */ | |
1028 | if (PN533_TYPE_A_SEL_CASCADE(type_a->sel_res) != 0) | |
1029 | return false; | |
1030 | ||
1031 | return true; | |
1032 | } | |
1033 | ||
1034 | static int pn533_target_found_type_a(struct nfc_target *nfc_tgt, u8 *tgt_data, | |
1035 | int tgt_data_len) | |
1036 | { | |
1037 | struct pn533_target_type_a *tgt_type_a; | |
1038 | ||
37cf4fc6 | 1039 | tgt_type_a = (struct pn533_target_type_a *)tgt_data; |
c46ee386 AAJ |
1040 | |
1041 | if (!pn533_target_type_a_is_valid(tgt_type_a, tgt_data_len)) | |
1042 | return -EPROTO; | |
1043 | ||
1044 | switch (PN533_TYPE_A_SEL_PROT(tgt_type_a->sel_res)) { | |
1045 | case PN533_TYPE_A_SEL_PROT_MIFARE: | |
1046 | nfc_tgt->supported_protocols = NFC_PROTO_MIFARE_MASK; | |
1047 | break; | |
1048 | case PN533_TYPE_A_SEL_PROT_ISO14443: | |
1049 | nfc_tgt->supported_protocols = NFC_PROTO_ISO14443_MASK; | |
1050 | break; | |
1051 | case PN533_TYPE_A_SEL_PROT_DEP: | |
1052 | nfc_tgt->supported_protocols = NFC_PROTO_NFC_DEP_MASK; | |
1053 | break; | |
1054 | case PN533_TYPE_A_SEL_PROT_ISO14443_DEP: | |
1055 | nfc_tgt->supported_protocols = NFC_PROTO_ISO14443_MASK | | |
1056 | NFC_PROTO_NFC_DEP_MASK; | |
1057 | break; | |
1058 | } | |
1059 | ||
1060 | nfc_tgt->sens_res = be16_to_cpu(tgt_type_a->sens_res); | |
1061 | nfc_tgt->sel_res = tgt_type_a->sel_res; | |
c3b1e1e8 SO |
1062 | nfc_tgt->nfcid1_len = tgt_type_a->nfcid_len; |
1063 | memcpy(nfc_tgt->nfcid1, tgt_type_a->nfcid_data, nfc_tgt->nfcid1_len); | |
c46ee386 AAJ |
1064 | |
1065 | return 0; | |
1066 | } | |
1067 | ||
1068 | struct pn533_target_felica { | |
1069 | u8 pol_res; | |
1070 | u8 opcode; | |
1071 | u8 nfcid2[8]; | |
1072 | u8 pad[8]; | |
1073 | /* optional */ | |
1074 | u8 syst_code[]; | |
1075 | } __packed; | |
1076 | ||
1077 | #define PN533_FELICA_SENSF_NFCID2_DEP_B1 0x01 | |
1078 | #define PN533_FELICA_SENSF_NFCID2_DEP_B2 0xFE | |
1079 | ||
1080 | static bool pn533_target_felica_is_valid(struct pn533_target_felica *felica, | |
1081 | int target_data_len) | |
1082 | { | |
1083 | if (target_data_len < sizeof(struct pn533_target_felica)) | |
1084 | return false; | |
1085 | ||
1086 | if (felica->opcode != PN533_FELICA_OPC_SENSF_RES) | |
1087 | return false; | |
1088 | ||
1089 | return true; | |
1090 | } | |
1091 | ||
1092 | static int pn533_target_found_felica(struct nfc_target *nfc_tgt, u8 *tgt_data, | |
1093 | int tgt_data_len) | |
1094 | { | |
1095 | struct pn533_target_felica *tgt_felica; | |
1096 | ||
37cf4fc6 | 1097 | tgt_felica = (struct pn533_target_felica *)tgt_data; |
c46ee386 AAJ |
1098 | |
1099 | if (!pn533_target_felica_is_valid(tgt_felica, tgt_data_len)) | |
1100 | return -EPROTO; | |
1101 | ||
5d467742 WR |
1102 | if ((tgt_felica->nfcid2[0] == PN533_FELICA_SENSF_NFCID2_DEP_B1) && |
1103 | (tgt_felica->nfcid2[1] == PN533_FELICA_SENSF_NFCID2_DEP_B2)) | |
c46ee386 AAJ |
1104 | nfc_tgt->supported_protocols = NFC_PROTO_NFC_DEP_MASK; |
1105 | else | |
1106 | nfc_tgt->supported_protocols = NFC_PROTO_FELICA_MASK; | |
1107 | ||
7975754f SO |
1108 | memcpy(nfc_tgt->sensf_res, &tgt_felica->opcode, 9); |
1109 | nfc_tgt->sensf_res_len = 9; | |
1110 | ||
c46ee386 AAJ |
1111 | return 0; |
1112 | } | |
1113 | ||
1114 | struct pn533_target_jewel { | |
1115 | __be16 sens_res; | |
1116 | u8 jewelid[4]; | |
1117 | } __packed; | |
1118 | ||
1119 | static bool pn533_target_jewel_is_valid(struct pn533_target_jewel *jewel, | |
1120 | int target_data_len) | |
1121 | { | |
1122 | u8 ssd; | |
1123 | u8 platconf; | |
1124 | ||
1125 | if (target_data_len < sizeof(struct pn533_target_jewel)) | |
1126 | return false; | |
1127 | ||
1128 | /* Requirement 4.6.3.3 from NFC Forum Digital Spec */ | |
1129 | ssd = PN533_TYPE_A_SENS_RES_SSD(jewel->sens_res); | |
1130 | platconf = PN533_TYPE_A_SENS_RES_PLATCONF(jewel->sens_res); | |
1131 | ||
1132 | if ((ssd == PN533_TYPE_A_SENS_RES_SSD_JEWEL && | |
5d467742 WR |
1133 | platconf != PN533_TYPE_A_SENS_RES_PLATCONF_JEWEL) || |
1134 | (ssd != PN533_TYPE_A_SENS_RES_SSD_JEWEL && | |
1135 | platconf == PN533_TYPE_A_SENS_RES_PLATCONF_JEWEL)) | |
c46ee386 AAJ |
1136 | return false; |
1137 | ||
1138 | return true; | |
1139 | } | |
1140 | ||
1141 | static int pn533_target_found_jewel(struct nfc_target *nfc_tgt, u8 *tgt_data, | |
1142 | int tgt_data_len) | |
1143 | { | |
1144 | struct pn533_target_jewel *tgt_jewel; | |
1145 | ||
37cf4fc6 | 1146 | tgt_jewel = (struct pn533_target_jewel *)tgt_data; |
c46ee386 AAJ |
1147 | |
1148 | if (!pn533_target_jewel_is_valid(tgt_jewel, tgt_data_len)) | |
1149 | return -EPROTO; | |
1150 | ||
1151 | nfc_tgt->supported_protocols = NFC_PROTO_JEWEL_MASK; | |
1152 | nfc_tgt->sens_res = be16_to_cpu(tgt_jewel->sens_res); | |
d8dc1072 SO |
1153 | nfc_tgt->nfcid1_len = 4; |
1154 | memcpy(nfc_tgt->nfcid1, tgt_jewel->jewelid, nfc_tgt->nfcid1_len); | |
c46ee386 AAJ |
1155 | |
1156 | return 0; | |
1157 | } | |
1158 | ||
1159 | struct pn533_type_b_prot_info { | |
1160 | u8 bitrate; | |
1161 | u8 fsci_type; | |
1162 | u8 fwi_adc_fo; | |
1163 | } __packed; | |
1164 | ||
1165 | #define PN533_TYPE_B_PROT_FCSI(x) (((x) & 0xF0) >> 4) | |
1166 | #define PN533_TYPE_B_PROT_TYPE(x) (((x) & 0x0F) >> 0) | |
1167 | #define PN533_TYPE_B_PROT_TYPE_RFU_MASK 0x8 | |
1168 | ||
1169 | struct pn533_type_b_sens_res { | |
1170 | u8 opcode; | |
1171 | u8 nfcid[4]; | |
1172 | u8 appdata[4]; | |
1173 | struct pn533_type_b_prot_info prot_info; | |
1174 | } __packed; | |
1175 | ||
1176 | #define PN533_TYPE_B_OPC_SENSB_RES 0x50 | |
1177 | ||
1178 | struct pn533_target_type_b { | |
1179 | struct pn533_type_b_sens_res sensb_res; | |
1180 | u8 attrib_res_len; | |
1181 | u8 attrib_res[]; | |
1182 | } __packed; | |
1183 | ||
1184 | static bool pn533_target_type_b_is_valid(struct pn533_target_type_b *type_b, | |
1185 | int target_data_len) | |
1186 | { | |
1187 | if (target_data_len < sizeof(struct pn533_target_type_b)) | |
1188 | return false; | |
1189 | ||
1190 | if (type_b->sensb_res.opcode != PN533_TYPE_B_OPC_SENSB_RES) | |
1191 | return false; | |
1192 | ||
1193 | if (PN533_TYPE_B_PROT_TYPE(type_b->sensb_res.prot_info.fsci_type) & | |
1194 | PN533_TYPE_B_PROT_TYPE_RFU_MASK) | |
1195 | return false; | |
1196 | ||
1197 | return true; | |
1198 | } | |
1199 | ||
1200 | static int pn533_target_found_type_b(struct nfc_target *nfc_tgt, u8 *tgt_data, | |
1201 | int tgt_data_len) | |
1202 | { | |
1203 | struct pn533_target_type_b *tgt_type_b; | |
1204 | ||
37cf4fc6 | 1205 | tgt_type_b = (struct pn533_target_type_b *)tgt_data; |
c46ee386 AAJ |
1206 | |
1207 | if (!pn533_target_type_b_is_valid(tgt_type_b, tgt_data_len)) | |
1208 | return -EPROTO; | |
1209 | ||
01d719a2 | 1210 | nfc_tgt->supported_protocols = NFC_PROTO_ISO14443_B_MASK; |
c46ee386 AAJ |
1211 | |
1212 | return 0; | |
1213 | } | |
1214 | ||
b5193e5d WR |
1215 | static int pn533_target_found(struct pn533 *dev, u8 tg, u8 *tgdata, |
1216 | int tgdata_len) | |
c46ee386 | 1217 | { |
c46ee386 AAJ |
1218 | struct nfc_target nfc_tgt; |
1219 | int rc; | |
1220 | ||
1221 | nfc_dev_dbg(&dev->interface->dev, "%s - modulation=%d", __func__, | |
b5193e5d | 1222 | dev->poll_mod_curr); |
c46ee386 | 1223 | |
b5193e5d | 1224 | if (tg != 1) |
c46ee386 AAJ |
1225 | return -EPROTO; |
1226 | ||
98b3ac1b SO |
1227 | memset(&nfc_tgt, 0, sizeof(struct nfc_target)); |
1228 | ||
c46ee386 AAJ |
1229 | switch (dev->poll_mod_curr) { |
1230 | case PN533_POLL_MOD_106KBPS_A: | |
b5193e5d | 1231 | rc = pn533_target_found_type_a(&nfc_tgt, tgdata, tgdata_len); |
c46ee386 AAJ |
1232 | break; |
1233 | case PN533_POLL_MOD_212KBPS_FELICA: | |
1234 | case PN533_POLL_MOD_424KBPS_FELICA: | |
b5193e5d | 1235 | rc = pn533_target_found_felica(&nfc_tgt, tgdata, tgdata_len); |
c46ee386 AAJ |
1236 | break; |
1237 | case PN533_POLL_MOD_106KBPS_JEWEL: | |
b5193e5d | 1238 | rc = pn533_target_found_jewel(&nfc_tgt, tgdata, tgdata_len); |
c46ee386 AAJ |
1239 | break; |
1240 | case PN533_POLL_MOD_847KBPS_B: | |
b5193e5d | 1241 | rc = pn533_target_found_type_b(&nfc_tgt, tgdata, tgdata_len); |
c46ee386 AAJ |
1242 | break; |
1243 | default: | |
b5193e5d WR |
1244 | nfc_dev_err(&dev->interface->dev, |
1245 | "Unknown current poll modulation"); | |
c46ee386 AAJ |
1246 | return -EPROTO; |
1247 | } | |
1248 | ||
1249 | if (rc) | |
1250 | return rc; | |
1251 | ||
1252 | if (!(nfc_tgt.supported_protocols & dev->poll_protocols)) { | |
b5193e5d WR |
1253 | nfc_dev_dbg(&dev->interface->dev, |
1254 | "The Tg found doesn't have the desired protocol"); | |
c46ee386 AAJ |
1255 | return -EAGAIN; |
1256 | } | |
1257 | ||
b5193e5d WR |
1258 | nfc_dev_dbg(&dev->interface->dev, |
1259 | "Target found - supported protocols: 0x%x", | |
1260 | nfc_tgt.supported_protocols); | |
c46ee386 AAJ |
1261 | |
1262 | dev->tgt_available_prots = nfc_tgt.supported_protocols; | |
1263 | ||
1264 | nfc_targets_found(dev->nfc_dev, &nfc_tgt, 1); | |
1265 | ||
1266 | return 0; | |
1267 | } | |
1268 | ||
6fbbdc16 SO |
1269 | static inline void pn533_poll_next_mod(struct pn533 *dev) |
1270 | { | |
1271 | dev->poll_mod_curr = (dev->poll_mod_curr + 1) % dev->poll_mod_count; | |
1272 | } | |
1273 | ||
c46ee386 AAJ |
1274 | static void pn533_poll_reset_mod_list(struct pn533 *dev) |
1275 | { | |
1276 | dev->poll_mod_count = 0; | |
1277 | } | |
1278 | ||
1279 | static void pn533_poll_add_mod(struct pn533 *dev, u8 mod_index) | |
1280 | { | |
1281 | dev->poll_mod_active[dev->poll_mod_count] = | |
37cf4fc6 | 1282 | (struct pn533_poll_modulations *)&poll_mod[mod_index]; |
c46ee386 AAJ |
1283 | dev->poll_mod_count++; |
1284 | } | |
1285 | ||
6fbbdc16 SO |
1286 | static void pn533_poll_create_mod_list(struct pn533 *dev, |
1287 | u32 im_protocols, u32 tm_protocols) | |
c46ee386 AAJ |
1288 | { |
1289 | pn533_poll_reset_mod_list(dev); | |
1290 | ||
b08e8603 WR |
1291 | if ((im_protocols & NFC_PROTO_MIFARE_MASK) || |
1292 | (im_protocols & NFC_PROTO_ISO14443_MASK) || | |
1293 | (im_protocols & NFC_PROTO_NFC_DEP_MASK)) | |
c46ee386 AAJ |
1294 | pn533_poll_add_mod(dev, PN533_POLL_MOD_106KBPS_A); |
1295 | ||
b08e8603 WR |
1296 | if (im_protocols & NFC_PROTO_FELICA_MASK || |
1297 | im_protocols & NFC_PROTO_NFC_DEP_MASK) { | |
c46ee386 AAJ |
1298 | pn533_poll_add_mod(dev, PN533_POLL_MOD_212KBPS_FELICA); |
1299 | pn533_poll_add_mod(dev, PN533_POLL_MOD_424KBPS_FELICA); | |
1300 | } | |
1301 | ||
6fbbdc16 | 1302 | if (im_protocols & NFC_PROTO_JEWEL_MASK) |
c46ee386 AAJ |
1303 | pn533_poll_add_mod(dev, PN533_POLL_MOD_106KBPS_JEWEL); |
1304 | ||
01d719a2 | 1305 | if (im_protocols & NFC_PROTO_ISO14443_B_MASK) |
c46ee386 | 1306 | pn533_poll_add_mod(dev, PN533_POLL_MOD_847KBPS_B); |
c46ee386 | 1307 | |
6fbbdc16 SO |
1308 | if (tm_protocols) |
1309 | pn533_poll_add_mod(dev, PN533_LISTEN_MOD); | |
c46ee386 AAJ |
1310 | } |
1311 | ||
b5193e5d | 1312 | static int pn533_start_poll_complete(struct pn533 *dev, struct sk_buff *resp) |
c46ee386 | 1313 | { |
b5193e5d WR |
1314 | u8 nbtg, tg, *tgdata; |
1315 | int rc, tgdata_len; | |
c46ee386 AAJ |
1316 | |
1317 | nfc_dev_dbg(&dev->interface->dev, "%s", __func__); | |
1318 | ||
b5193e5d WR |
1319 | nbtg = resp->data[0]; |
1320 | tg = resp->data[1]; | |
1321 | tgdata = &resp->data[2]; | |
1322 | tgdata_len = resp->len - 2; /* nbtg + tg */ | |
1323 | ||
1324 | if (nbtg) { | |
1325 | rc = pn533_target_found(dev, tg, tgdata, tgdata_len); | |
c46ee386 AAJ |
1326 | |
1327 | /* We must stop the poll after a valid target found */ | |
6fbbdc16 SO |
1328 | if (rc == 0) { |
1329 | pn533_poll_reset_mod_list(dev); | |
1330 | return 0; | |
1331 | } | |
c46ee386 AAJ |
1332 | } |
1333 | ||
6fbbdc16 | 1334 | return -EAGAIN; |
c46ee386 AAJ |
1335 | } |
1336 | ||
9e2d493e | 1337 | static struct sk_buff *pn533_alloc_poll_tg_frame(struct pn533 *dev) |
ad3823ce | 1338 | { |
b5193e5d WR |
1339 | struct sk_buff *skb; |
1340 | u8 *felica, *nfcid3, *gb; | |
1341 | ||
9e2d493e WR |
1342 | u8 *gbytes = dev->gb; |
1343 | size_t gbytes_len = dev->gb_len; | |
1344 | ||
51d9e803 SO |
1345 | u8 felica_params[18] = {0x1, 0xfe, /* DEP */ |
1346 | 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, /* random */ | |
1347 | 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, | |
1348 | 0xff, 0xff}; /* System code */ | |
b5193e5d | 1349 | |
51d9e803 SO |
1350 | u8 mifare_params[6] = {0x1, 0x1, /* SENS_RES */ |
1351 | 0x0, 0x0, 0x0, | |
1352 | 0x40}; /* SEL_RES for DEP */ | |
ad3823ce | 1353 | |
b5193e5d WR |
1354 | unsigned int skb_len = 36 + /* mode (1), mifare (6), |
1355 | felica (18), nfcid3 (10), gb_len (1) */ | |
1356 | gbytes_len + | |
1357 | 1; /* len Tk*/ | |
ad3823ce | 1358 | |
9e2d493e | 1359 | skb = pn533_alloc_skb(dev, skb_len); |
b5193e5d WR |
1360 | if (!skb) |
1361 | return NULL; | |
ad3823ce SO |
1362 | |
1363 | /* DEP support only */ | |
52f2eaee | 1364 | *skb_put(skb, 1) = PN533_INIT_TARGET_DEP; |
b5193e5d WR |
1365 | |
1366 | /* MIFARE params */ | |
1367 | memcpy(skb_put(skb, 6), mifare_params, 6); | |
51d9e803 SO |
1368 | |
1369 | /* Felica params */ | |
b5193e5d WR |
1370 | felica = skb_put(skb, 18); |
1371 | memcpy(felica, felica_params, 18); | |
1372 | get_random_bytes(felica + 2, 6); | |
51d9e803 SO |
1373 | |
1374 | /* NFCID3 */ | |
b5193e5d WR |
1375 | nfcid3 = skb_put(skb, 10); |
1376 | memset(nfcid3, 0, 10); | |
1377 | memcpy(nfcid3, felica, 8); | |
51d9e803 SO |
1378 | |
1379 | /* General bytes */ | |
b5193e5d | 1380 | *skb_put(skb, 1) = gbytes_len; |
51d9e803 | 1381 | |
b5193e5d WR |
1382 | gb = skb_put(skb, gbytes_len); |
1383 | memcpy(gb, gbytes, gbytes_len); | |
ad3823ce | 1384 | |
b5193e5d WR |
1385 | /* Len Tk */ |
1386 | *skb_put(skb, 1) = 0; | |
51d9e803 | 1387 | |
b5193e5d | 1388 | return skb; |
ad3823ce SO |
1389 | } |
1390 | ||
b1bb290a | 1391 | #define PN533_CMD_DATAEXCH_HEAD_LEN 1 |
103b34cf SO |
1392 | #define PN533_CMD_DATAEXCH_DATA_MAXLEN 262 |
1393 | static int pn533_tm_get_data_complete(struct pn533 *dev, void *arg, | |
e4878823 | 1394 | struct sk_buff *resp) |
103b34cf | 1395 | { |
e4878823 | 1396 | u8 status; |
103b34cf SO |
1397 | |
1398 | nfc_dev_dbg(&dev->interface->dev, "%s", __func__); | |
1399 | ||
e4878823 WR |
1400 | if (IS_ERR(resp)) |
1401 | return PTR_ERR(resp); | |
103b34cf | 1402 | |
e4878823 WR |
1403 | status = resp->data[0]; |
1404 | skb_pull(resp, sizeof(status)); | |
103b34cf | 1405 | |
e4878823 | 1406 | if (status != 0) { |
103b34cf | 1407 | nfc_tm_deactivated(dev->nfc_dev); |
51ad304c | 1408 | dev->tgt_mode = 0; |
e4878823 | 1409 | dev_kfree_skb(resp); |
103b34cf SO |
1410 | return 0; |
1411 | } | |
1412 | ||
e4878823 | 1413 | return nfc_tm_data_received(dev->nfc_dev, resp); |
103b34cf SO |
1414 | } |
1415 | ||
1416 | static void pn533_wq_tg_get_data(struct work_struct *work) | |
1417 | { | |
1418 | struct pn533 *dev = container_of(work, struct pn533, tg_work); | |
103b34cf | 1419 | |
e4878823 WR |
1420 | struct sk_buff *skb; |
1421 | int rc; | |
103b34cf | 1422 | |
e4878823 | 1423 | nfc_dev_dbg(&dev->interface->dev, "%s", __func__); |
103b34cf | 1424 | |
9e2d493e | 1425 | skb = pn533_alloc_skb(dev, 0); |
e4878823 | 1426 | if (!skb) |
103b34cf SO |
1427 | return; |
1428 | ||
e4878823 WR |
1429 | rc = pn533_send_data_async(dev, PN533_CMD_TG_GET_DATA, skb, |
1430 | pn533_tm_get_data_complete, NULL); | |
103b34cf | 1431 | |
e4878823 WR |
1432 | if (rc < 0) |
1433 | dev_kfree_skb(skb); | |
103b34cf SO |
1434 | |
1435 | return; | |
1436 | } | |
1437 | ||
fc40a8c1 | 1438 | #define ATR_REQ_GB_OFFSET 17 |
b5193e5d | 1439 | static int pn533_init_target_complete(struct pn533 *dev, struct sk_buff *resp) |
fe7c5800 | 1440 | { |
b5193e5d | 1441 | u8 mode, *cmd, comm_mode = NFC_COMM_PASSIVE, *gb; |
fc40a8c1 | 1442 | size_t gb_len; |
103b34cf | 1443 | int rc; |
ad3823ce SO |
1444 | |
1445 | nfc_dev_dbg(&dev->interface->dev, "%s", __func__); | |
1446 | ||
b5193e5d | 1447 | if (resp->len < ATR_REQ_GB_OFFSET + 1) |
fc40a8c1 SO |
1448 | return -EINVAL; |
1449 | ||
b5193e5d WR |
1450 | mode = resp->data[0]; |
1451 | cmd = &resp->data[1]; | |
ad3823ce | 1452 | |
b5193e5d WR |
1453 | nfc_dev_dbg(&dev->interface->dev, "Target mode 0x%x len %d\n", |
1454 | mode, resp->len); | |
ad3823ce | 1455 | |
b5193e5d WR |
1456 | if ((mode & PN533_INIT_TARGET_RESP_FRAME_MASK) == |
1457 | PN533_INIT_TARGET_RESP_ACTIVE) | |
fc40a8c1 SO |
1458 | comm_mode = NFC_COMM_ACTIVE; |
1459 | ||
b5193e5d | 1460 | if ((mode & PN533_INIT_TARGET_RESP_DEP) == 0) /* Only DEP supported */ |
fc40a8c1 SO |
1461 | return -EOPNOTSUPP; |
1462 | ||
b5193e5d WR |
1463 | gb = cmd + ATR_REQ_GB_OFFSET; |
1464 | gb_len = resp->len - (ATR_REQ_GB_OFFSET + 1); | |
fc40a8c1 | 1465 | |
103b34cf SO |
1466 | rc = nfc_tm_activated(dev->nfc_dev, NFC_PROTO_NFC_DEP_MASK, |
1467 | comm_mode, gb, gb_len); | |
1468 | if (rc < 0) { | |
1469 | nfc_dev_err(&dev->interface->dev, | |
1470 | "Error when signaling target activation"); | |
1471 | return rc; | |
1472 | } | |
1473 | ||
51ad304c | 1474 | dev->tgt_mode = 1; |
103b34cf SO |
1475 | queue_work(dev->wq, &dev->tg_work); |
1476 | ||
1477 | return 0; | |
fe7c5800 SO |
1478 | } |
1479 | ||
6fbbdc16 | 1480 | static void pn533_listen_mode_timer(unsigned long data) |
ad3823ce | 1481 | { |
37cf4fc6 | 1482 | struct pn533 *dev = (struct pn533 *)data; |
6fbbdc16 SO |
1483 | |
1484 | nfc_dev_dbg(&dev->interface->dev, "Listen mode timeout"); | |
1485 | ||
1486 | /* An ack will cancel the last issued command (poll) */ | |
1487 | pn533_send_ack(dev, GFP_ATOMIC); | |
1488 | ||
1489 | dev->cancel_listen = 1; | |
1490 | ||
6fbbdc16 SO |
1491 | pn533_poll_next_mod(dev); |
1492 | ||
1493 | queue_work(dev->wq, &dev->poll_work); | |
1494 | } | |
1495 | ||
1496 | static int pn533_poll_complete(struct pn533 *dev, void *arg, | |
b5193e5d | 1497 | struct sk_buff *resp) |
6fbbdc16 SO |
1498 | { |
1499 | struct pn533_poll_modulations *cur_mod; | |
ad3823ce SO |
1500 | int rc; |
1501 | ||
6fbbdc16 | 1502 | nfc_dev_dbg(&dev->interface->dev, "%s", __func__); |
ad3823ce | 1503 | |
b5193e5d WR |
1504 | if (IS_ERR(resp)) { |
1505 | rc = PTR_ERR(resp); | |
1506 | ||
1507 | nfc_dev_err(&dev->interface->dev, "%s Poll complete error %d", | |
1508 | __func__, rc); | |
1509 | ||
1510 | if (rc == -ENOENT) { | |
1511 | if (dev->poll_mod_count != 0) | |
1512 | return rc; | |
1513 | else | |
1514 | goto stop_poll; | |
1515 | } else if (rc < 0) { | |
1516 | nfc_dev_err(&dev->interface->dev, | |
1517 | "Error %d when running poll", rc); | |
1518 | goto stop_poll; | |
1519 | } | |
6fbbdc16 | 1520 | } |
ad3823ce | 1521 | |
6fbbdc16 SO |
1522 | cur_mod = dev->poll_mod_active[dev->poll_mod_curr]; |
1523 | ||
b5193e5d | 1524 | if (cur_mod->len == 0) { /* Target mode */ |
6fbbdc16 | 1525 | del_timer(&dev->listen_timer); |
b5193e5d WR |
1526 | rc = pn533_init_target_complete(dev, resp); |
1527 | goto done; | |
6fbbdc16 SO |
1528 | } |
1529 | ||
b5193e5d WR |
1530 | /* Initiator mode */ |
1531 | rc = pn533_start_poll_complete(dev, resp); | |
1532 | if (!rc) | |
1533 | goto done; | |
6fbbdc16 | 1534 | |
95cb9e10 WR |
1535 | if (!dev->poll_mod_count) { |
1536 | nfc_dev_dbg(&dev->interface->dev, "Polling has been stoped."); | |
1537 | goto done; | |
1538 | } | |
1539 | ||
b5193e5d | 1540 | pn533_poll_next_mod(dev); |
6fbbdc16 SO |
1541 | queue_work(dev->wq, &dev->poll_work); |
1542 | ||
b5193e5d WR |
1543 | done: |
1544 | dev_kfree_skb(resp); | |
1545 | return rc; | |
6fbbdc16 SO |
1546 | |
1547 | stop_poll: | |
b5193e5d WR |
1548 | nfc_dev_err(&dev->interface->dev, "Polling operation has been stopped"); |
1549 | ||
6fbbdc16 SO |
1550 | pn533_poll_reset_mod_list(dev); |
1551 | dev->poll_protocols = 0; | |
b5193e5d | 1552 | return rc; |
ad3823ce SO |
1553 | } |
1554 | ||
9e2d493e WR |
1555 | static struct sk_buff *pn533_alloc_poll_in_frame(struct pn533 *dev, |
1556 | struct pn533_poll_modulations *mod) | |
c46ee386 | 1557 | { |
b5193e5d | 1558 | struct sk_buff *skb; |
c46ee386 | 1559 | |
9e2d493e | 1560 | skb = pn533_alloc_skb(dev, mod->len); |
b5193e5d WR |
1561 | if (!skb) |
1562 | return NULL; | |
c46ee386 | 1563 | |
b5193e5d | 1564 | memcpy(skb_put(skb, mod->len), &mod->data, mod->len); |
c46ee386 | 1565 | |
b5193e5d | 1566 | return skb; |
6fbbdc16 | 1567 | } |
c46ee386 | 1568 | |
6fbbdc16 SO |
1569 | static int pn533_send_poll_frame(struct pn533 *dev) |
1570 | { | |
b5193e5d WR |
1571 | struct pn533_poll_modulations *mod; |
1572 | struct sk_buff *skb; | |
6fbbdc16 | 1573 | int rc; |
b5193e5d | 1574 | u8 cmd_code; |
c46ee386 | 1575 | |
b5193e5d | 1576 | mod = dev->poll_mod_active[dev->poll_mod_curr]; |
c46ee386 | 1577 | |
b5193e5d WR |
1578 | nfc_dev_dbg(&dev->interface->dev, "%s mod len %d\n", |
1579 | __func__, mod->len); | |
c46ee386 | 1580 | |
b5193e5d WR |
1581 | if (mod->len == 0) { /* Listen mode */ |
1582 | cmd_code = PN533_CMD_TG_INIT_AS_TARGET; | |
9e2d493e | 1583 | skb = pn533_alloc_poll_tg_frame(dev); |
b5193e5d WR |
1584 | } else { /* Polling mode */ |
1585 | cmd_code = PN533_CMD_IN_LIST_PASSIVE_TARGET; | |
9e2d493e | 1586 | skb = pn533_alloc_poll_in_frame(dev, mod); |
b5193e5d WR |
1587 | } |
1588 | ||
1589 | if (!skb) { | |
1590 | nfc_dev_err(&dev->interface->dev, "Failed to allocate skb."); | |
1591 | return -ENOMEM; | |
1592 | } | |
1593 | ||
1594 | rc = pn533_send_cmd_async(dev, cmd_code, skb, pn533_poll_complete, | |
1595 | NULL); | |
1596 | if (rc < 0) { | |
1597 | dev_kfree_skb(skb); | |
6fbbdc16 | 1598 | nfc_dev_err(&dev->interface->dev, "Polling loop error %d", rc); |
b5193e5d | 1599 | } |
c46ee386 | 1600 | |
6fbbdc16 SO |
1601 | return rc; |
1602 | } | |
1603 | ||
1604 | static void pn533_wq_poll(struct work_struct *work) | |
1605 | { | |
1606 | struct pn533 *dev = container_of(work, struct pn533, poll_work); | |
1607 | struct pn533_poll_modulations *cur_mod; | |
1608 | int rc; | |
1609 | ||
1610 | cur_mod = dev->poll_mod_active[dev->poll_mod_curr]; | |
1611 | ||
1612 | nfc_dev_dbg(&dev->interface->dev, | |
1613 | "%s cancel_listen %d modulation len %d", | |
1614 | __func__, dev->cancel_listen, cur_mod->len); | |
1615 | ||
1616 | if (dev->cancel_listen == 1) { | |
1617 | dev->cancel_listen = 0; | |
1618 | usb_kill_urb(dev->in_urb); | |
c46ee386 AAJ |
1619 | } |
1620 | ||
6fbbdc16 SO |
1621 | rc = pn533_send_poll_frame(dev); |
1622 | if (rc) | |
1623 | return; | |
c46ee386 | 1624 | |
6fbbdc16 SO |
1625 | if (cur_mod->len == 0 && dev->poll_mod_count > 1) |
1626 | mod_timer(&dev->listen_timer, jiffies + PN533_LISTEN_TIME * HZ); | |
c46ee386 | 1627 | |
6fbbdc16 | 1628 | return; |
c46ee386 AAJ |
1629 | } |
1630 | ||
fe7c5800 SO |
1631 | static int pn533_start_poll(struct nfc_dev *nfc_dev, |
1632 | u32 im_protocols, u32 tm_protocols) | |
1633 | { | |
1634 | struct pn533 *dev = nfc_get_drvdata(nfc_dev); | |
1635 | ||
1636 | nfc_dev_dbg(&dev->interface->dev, | |
1637 | "%s: im protocols 0x%x tm protocols 0x%x", | |
1638 | __func__, im_protocols, tm_protocols); | |
1639 | ||
1640 | if (dev->tgt_active_prot) { | |
1641 | nfc_dev_err(&dev->interface->dev, | |
1642 | "Cannot poll with a target already activated"); | |
1643 | return -EBUSY; | |
1644 | } | |
1645 | ||
51ad304c SO |
1646 | if (dev->tgt_mode) { |
1647 | nfc_dev_err(&dev->interface->dev, | |
1648 | "Cannot poll while already being activated"); | |
1649 | return -EBUSY; | |
1650 | } | |
1651 | ||
6fbbdc16 SO |
1652 | if (tm_protocols) { |
1653 | dev->gb = nfc_get_local_general_bytes(nfc_dev, &dev->gb_len); | |
1654 | if (dev->gb == NULL) | |
1655 | tm_protocols = 0; | |
1656 | } | |
ad3823ce | 1657 | |
6fbbdc16 SO |
1658 | dev->poll_mod_curr = 0; |
1659 | pn533_poll_create_mod_list(dev, im_protocols, tm_protocols); | |
1660 | dev->poll_protocols = im_protocols; | |
1661 | dev->listen_protocols = tm_protocols; | |
ad3823ce | 1662 | |
6fbbdc16 | 1663 | return pn533_send_poll_frame(dev); |
fe7c5800 SO |
1664 | } |
1665 | ||
c46ee386 AAJ |
1666 | static void pn533_stop_poll(struct nfc_dev *nfc_dev) |
1667 | { | |
1668 | struct pn533 *dev = nfc_get_drvdata(nfc_dev); | |
1669 | ||
1670 | nfc_dev_dbg(&dev->interface->dev, "%s", __func__); | |
1671 | ||
6fbbdc16 SO |
1672 | del_timer(&dev->listen_timer); |
1673 | ||
c46ee386 | 1674 | if (!dev->poll_mod_count) { |
6ca55372 WR |
1675 | nfc_dev_dbg(&dev->interface->dev, |
1676 | "Polling operation was not running"); | |
c46ee386 AAJ |
1677 | return; |
1678 | } | |
1679 | ||
1680 | /* An ack will cancel the last issued command (poll) */ | |
1681 | pn533_send_ack(dev, GFP_KERNEL); | |
1682 | ||
1683 | /* prevent pn533_start_poll_complete to issue a new poll meanwhile */ | |
1684 | usb_kill_urb(dev->in_urb); | |
7c2a04a9 SO |
1685 | |
1686 | pn533_poll_reset_mod_list(dev); | |
c46ee386 AAJ |
1687 | } |
1688 | ||
1689 | static int pn533_activate_target_nfcdep(struct pn533 *dev) | |
1690 | { | |
cb950d93 | 1691 | struct pn533_cmd_activate_response *rsp; |
541d920b | 1692 | u16 gt_len; |
c46ee386 AAJ |
1693 | int rc; |
1694 | ||
cb950d93 WR |
1695 | struct sk_buff *skb; |
1696 | struct sk_buff *resp; | |
c46ee386 | 1697 | |
cb950d93 | 1698 | nfc_dev_dbg(&dev->interface->dev, "%s", __func__); |
c46ee386 | 1699 | |
9e2d493e | 1700 | skb = pn533_alloc_skb(dev, sizeof(u8) * 2); /*TG + Next*/ |
cb950d93 WR |
1701 | if (!skb) |
1702 | return -ENOMEM; | |
c46ee386 | 1703 | |
cb950d93 WR |
1704 | *skb_put(skb, sizeof(u8)) = 1; /* TG */ |
1705 | *skb_put(skb, sizeof(u8)) = 0; /* Next */ | |
c46ee386 | 1706 | |
cb950d93 WR |
1707 | resp = pn533_send_cmd_sync(dev, PN533_CMD_IN_ATR, skb); |
1708 | if (IS_ERR(resp)) | |
1709 | return PTR_ERR(resp); | |
c46ee386 | 1710 | |
37cf4fc6 | 1711 | rsp = (struct pn533_cmd_activate_response *)resp->data; |
cb950d93 | 1712 | rc = rsp->status & PN533_CMD_RET_MASK; |
8a0ecfe7 | 1713 | if (rc != PN533_CMD_RET_SUCCESS) { |
a45e1c8d WR |
1714 | nfc_dev_err(&dev->interface->dev, |
1715 | "Target activation failed (error 0x%x)", rc); | |
cb950d93 | 1716 | dev_kfree_skb(resp); |
c46ee386 | 1717 | return -EIO; |
8a0ecfe7 | 1718 | } |
c46ee386 | 1719 | |
541d920b | 1720 | /* ATR_RES general bytes are located at offset 16 */ |
cb950d93 WR |
1721 | gt_len = resp->len - 16; |
1722 | rc = nfc_set_remote_general_bytes(dev->nfc_dev, rsp->gt, gt_len); | |
541d920b | 1723 | |
cb950d93 | 1724 | dev_kfree_skb(resp); |
541d920b | 1725 | return rc; |
c46ee386 AAJ |
1726 | } |
1727 | ||
90099433 EL |
1728 | static int pn533_activate_target(struct nfc_dev *nfc_dev, |
1729 | struct nfc_target *target, u32 protocol) | |
c46ee386 AAJ |
1730 | { |
1731 | struct pn533 *dev = nfc_get_drvdata(nfc_dev); | |
1732 | int rc; | |
1733 | ||
1734 | nfc_dev_dbg(&dev->interface->dev, "%s - protocol=%u", __func__, | |
5d467742 | 1735 | protocol); |
c46ee386 AAJ |
1736 | |
1737 | if (dev->poll_mod_count) { | |
6ca55372 WR |
1738 | nfc_dev_err(&dev->interface->dev, |
1739 | "Cannot activate while polling"); | |
c46ee386 AAJ |
1740 | return -EBUSY; |
1741 | } | |
1742 | ||
1743 | if (dev->tgt_active_prot) { | |
6ca55372 WR |
1744 | nfc_dev_err(&dev->interface->dev, |
1745 | "There is already an active target"); | |
c46ee386 AAJ |
1746 | return -EBUSY; |
1747 | } | |
1748 | ||
1749 | if (!dev->tgt_available_prots) { | |
6ca55372 WR |
1750 | nfc_dev_err(&dev->interface->dev, |
1751 | "There is no available target to activate"); | |
c46ee386 AAJ |
1752 | return -EINVAL; |
1753 | } | |
1754 | ||
1755 | if (!(dev->tgt_available_prots & (1 << protocol))) { | |
6ca55372 WR |
1756 | nfc_dev_err(&dev->interface->dev, |
1757 | "Target doesn't support requested proto %u", | |
1758 | protocol); | |
c46ee386 AAJ |
1759 | return -EINVAL; |
1760 | } | |
1761 | ||
1762 | if (protocol == NFC_PROTO_NFC_DEP) { | |
1763 | rc = pn533_activate_target_nfcdep(dev); | |
1764 | if (rc) { | |
6ca55372 WR |
1765 | nfc_dev_err(&dev->interface->dev, |
1766 | "Activating target with DEP failed %d", rc); | |
c46ee386 AAJ |
1767 | return rc; |
1768 | } | |
1769 | } | |
1770 | ||
1771 | dev->tgt_active_prot = protocol; | |
1772 | dev->tgt_available_prots = 0; | |
1773 | ||
1774 | return 0; | |
1775 | } | |
1776 | ||
90099433 EL |
1777 | static void pn533_deactivate_target(struct nfc_dev *nfc_dev, |
1778 | struct nfc_target *target) | |
c46ee386 AAJ |
1779 | { |
1780 | struct pn533 *dev = nfc_get_drvdata(nfc_dev); | |
cb950d93 WR |
1781 | |
1782 | struct sk_buff *skb; | |
1783 | struct sk_buff *resp; | |
1784 | ||
c46ee386 AAJ |
1785 | int rc; |
1786 | ||
1787 | nfc_dev_dbg(&dev->interface->dev, "%s", __func__); | |
1788 | ||
1789 | if (!dev->tgt_active_prot) { | |
1790 | nfc_dev_err(&dev->interface->dev, "There is no active target"); | |
1791 | return; | |
1792 | } | |
1793 | ||
1794 | dev->tgt_active_prot = 0; | |
6ff73fd2 SO |
1795 | skb_queue_purge(&dev->resp_q); |
1796 | ||
9e2d493e | 1797 | skb = pn533_alloc_skb(dev, sizeof(u8)); |
cb950d93 WR |
1798 | if (!skb) |
1799 | return; | |
c46ee386 | 1800 | |
cb950d93 | 1801 | *skb_put(skb, 1) = 1; /* TG*/ |
c46ee386 | 1802 | |
cb950d93 WR |
1803 | resp = pn533_send_cmd_sync(dev, PN533_CMD_IN_RELEASE, skb); |
1804 | if (IS_ERR(resp)) | |
c46ee386 | 1805 | return; |
c46ee386 | 1806 | |
cb950d93 | 1807 | rc = resp->data[0] & PN533_CMD_RET_MASK; |
c46ee386 | 1808 | if (rc != PN533_CMD_RET_SUCCESS) |
6ca55372 WR |
1809 | nfc_dev_err(&dev->interface->dev, |
1810 | "Error 0x%x when releasing the target", rc); | |
c46ee386 | 1811 | |
cb950d93 | 1812 | dev_kfree_skb(resp); |
c46ee386 AAJ |
1813 | return; |
1814 | } | |
1815 | ||
361f3cb7 SO |
1816 | |
1817 | static int pn533_in_dep_link_up_complete(struct pn533 *dev, void *arg, | |
13003649 | 1818 | struct sk_buff *resp) |
361f3cb7 | 1819 | { |
13003649 | 1820 | struct pn533_cmd_jump_dep_response *rsp; |
361f3cb7 SO |
1821 | u8 target_gt_len; |
1822 | int rc; | |
13003649 | 1823 | u8 active = *(u8 *)arg; |
70418e6e WR |
1824 | |
1825 | kfree(arg); | |
361f3cb7 | 1826 | |
13003649 WR |
1827 | if (IS_ERR(resp)) |
1828 | return PTR_ERR(resp); | |
361f3cb7 SO |
1829 | |
1830 | if (dev->tgt_available_prots && | |
1831 | !(dev->tgt_available_prots & (1 << NFC_PROTO_NFC_DEP))) { | |
1832 | nfc_dev_err(&dev->interface->dev, | |
5d467742 | 1833 | "The target does not support DEP"); |
13003649 WR |
1834 | rc = -EINVAL; |
1835 | goto error; | |
361f3cb7 SO |
1836 | } |
1837 | ||
13003649 WR |
1838 | rsp = (struct pn533_cmd_jump_dep_response *)resp->data; |
1839 | ||
1840 | rc = rsp->status & PN533_CMD_RET_MASK; | |
361f3cb7 SO |
1841 | if (rc != PN533_CMD_RET_SUCCESS) { |
1842 | nfc_dev_err(&dev->interface->dev, | |
a45e1c8d | 1843 | "Bringing DEP link up failed (error 0x%x)", rc); |
13003649 | 1844 | goto error; |
361f3cb7 SO |
1845 | } |
1846 | ||
1847 | if (!dev->tgt_available_prots) { | |
13003649 WR |
1848 | struct nfc_target nfc_target; |
1849 | ||
361f3cb7 SO |
1850 | nfc_dev_dbg(&dev->interface->dev, "Creating new target"); |
1851 | ||
1852 | nfc_target.supported_protocols = NFC_PROTO_NFC_DEP_MASK; | |
2fbabfa4 | 1853 | nfc_target.nfcid1_len = 10; |
13003649 | 1854 | memcpy(nfc_target.nfcid1, rsp->nfcid3t, nfc_target.nfcid1_len); |
361f3cb7 SO |
1855 | rc = nfc_targets_found(dev->nfc_dev, &nfc_target, 1); |
1856 | if (rc) | |
13003649 | 1857 | goto error; |
361f3cb7 SO |
1858 | |
1859 | dev->tgt_available_prots = 0; | |
1860 | } | |
1861 | ||
1862 | dev->tgt_active_prot = NFC_PROTO_NFC_DEP; | |
1863 | ||
1864 | /* ATR_RES general bytes are located at offset 17 */ | |
13003649 | 1865 | target_gt_len = resp->len - 17; |
361f3cb7 | 1866 | rc = nfc_set_remote_general_bytes(dev->nfc_dev, |
13003649 | 1867 | rsp->gt, target_gt_len); |
361f3cb7 SO |
1868 | if (rc == 0) |
1869 | rc = nfc_dep_link_is_up(dev->nfc_dev, | |
13003649 WR |
1870 | dev->nfc_dev->targets[0].idx, |
1871 | !active, NFC_RF_INITIATOR); | |
361f3cb7 | 1872 | |
13003649 WR |
1873 | error: |
1874 | dev_kfree_skb(resp); | |
1875 | return rc; | |
361f3cb7 SO |
1876 | } |
1877 | ||
41a8ec49 SO |
1878 | static int pn533_mod_to_baud(struct pn533 *dev) |
1879 | { | |
1880 | switch (dev->poll_mod_curr) { | |
1881 | case PN533_POLL_MOD_106KBPS_A: | |
1882 | return 0; | |
1883 | case PN533_POLL_MOD_212KBPS_FELICA: | |
1884 | return 1; | |
1885 | case PN533_POLL_MOD_424KBPS_FELICA: | |
1886 | return 2; | |
1887 | default: | |
1888 | return -EINVAL; | |
1889 | } | |
1890 | } | |
1891 | ||
d7f3345d | 1892 | #define PASSIVE_DATA_LEN 5 |
90099433 | 1893 | static int pn533_dep_link_up(struct nfc_dev *nfc_dev, struct nfc_target *target, |
37cf4fc6 | 1894 | u8 comm_mode, u8 *gb, size_t gb_len) |
361f3cb7 SO |
1895 | { |
1896 | struct pn533 *dev = nfc_get_drvdata(nfc_dev); | |
13003649 WR |
1897 | struct sk_buff *skb; |
1898 | int rc, baud, skb_len; | |
1899 | u8 *next, *arg; | |
1900 | ||
d7f3345d | 1901 | u8 passive_data[PASSIVE_DATA_LEN] = {0x00, 0xff, 0xff, 0x00, 0x3}; |
361f3cb7 SO |
1902 | |
1903 | nfc_dev_dbg(&dev->interface->dev, "%s", __func__); | |
1904 | ||
361f3cb7 SO |
1905 | if (dev->poll_mod_count) { |
1906 | nfc_dev_err(&dev->interface->dev, | |
5d467742 | 1907 | "Cannot bring the DEP link up while polling"); |
361f3cb7 SO |
1908 | return -EBUSY; |
1909 | } | |
1910 | ||
1911 | if (dev->tgt_active_prot) { | |
1912 | nfc_dev_err(&dev->interface->dev, | |
5d467742 | 1913 | "There is already an active target"); |
361f3cb7 SO |
1914 | return -EBUSY; |
1915 | } | |
1916 | ||
41a8ec49 SO |
1917 | baud = pn533_mod_to_baud(dev); |
1918 | if (baud < 0) { | |
1919 | nfc_dev_err(&dev->interface->dev, | |
1920 | "Invalid curr modulation %d", dev->poll_mod_curr); | |
1921 | return baud; | |
1922 | } | |
1923 | ||
13003649 | 1924 | skb_len = 3 + gb_len; /* ActPass + BR + Next */ |
d7f3345d | 1925 | if (comm_mode == NFC_COMM_PASSIVE) |
13003649 | 1926 | skb_len += PASSIVE_DATA_LEN; |
d7f3345d | 1927 | |
9e2d493e | 1928 | skb = pn533_alloc_skb(dev, skb_len); |
13003649 | 1929 | if (!skb) |
361f3cb7 SO |
1930 | return -ENOMEM; |
1931 | ||
13003649 WR |
1932 | *skb_put(skb, 1) = !comm_mode; /* ActPass */ |
1933 | *skb_put(skb, 1) = baud; /* Baud rate */ | |
1934 | ||
1935 | next = skb_put(skb, 1); /* Next */ | |
1936 | *next = 0; | |
361f3cb7 | 1937 | |
13003649 WR |
1938 | if (comm_mode == NFC_COMM_PASSIVE && baud > 0) { |
1939 | memcpy(skb_put(skb, PASSIVE_DATA_LEN), passive_data, | |
1940 | PASSIVE_DATA_LEN); | |
1941 | *next |= 1; | |
d7f3345d SO |
1942 | } |
1943 | ||
47807d3d | 1944 | if (gb != NULL && gb_len > 0) { |
13003649 WR |
1945 | memcpy(skb_put(skb, gb_len), gb, gb_len); |
1946 | *next |= 4; /* We have some Gi */ | |
361f3cb7 | 1947 | } else { |
13003649 | 1948 | *next = 0; |
361f3cb7 SO |
1949 | } |
1950 | ||
13003649 WR |
1951 | arg = kmalloc(sizeof(*arg), GFP_KERNEL); |
1952 | if (!arg) { | |
1953 | dev_kfree_skb(skb); | |
1954 | return -ENOMEM; | |
1955 | } | |
361f3cb7 | 1956 | |
13003649 | 1957 | *arg = !comm_mode; |
361f3cb7 | 1958 | |
13003649 WR |
1959 | rc = pn533_send_cmd_async(dev, PN533_CMD_IN_JUMP_FOR_DEP, skb, |
1960 | pn533_in_dep_link_up_complete, arg); | |
1961 | ||
1962 | if (rc < 0) { | |
1963 | dev_kfree_skb(skb); | |
1964 | kfree(arg); | |
1965 | } | |
361f3cb7 SO |
1966 | |
1967 | return rc; | |
1968 | } | |
1969 | ||
1970 | static int pn533_dep_link_down(struct nfc_dev *nfc_dev) | |
1971 | { | |
6fbbdc16 SO |
1972 | struct pn533 *dev = nfc_get_drvdata(nfc_dev); |
1973 | ||
fcfafc76 WR |
1974 | nfc_dev_dbg(&dev->interface->dev, "%s", __func__); |
1975 | ||
6fbbdc16 SO |
1976 | pn533_poll_reset_mod_list(dev); |
1977 | ||
51ad304c SO |
1978 | if (dev->tgt_mode || dev->tgt_active_prot) { |
1979 | pn533_send_ack(dev, GFP_KERNEL); | |
1980 | usb_kill_urb(dev->in_urb); | |
1981 | } | |
1982 | ||
1983 | dev->tgt_active_prot = 0; | |
1984 | dev->tgt_mode = 0; | |
1985 | ||
1986 | skb_queue_purge(&dev->resp_q); | |
361f3cb7 SO |
1987 | |
1988 | return 0; | |
1989 | } | |
1990 | ||
c46ee386 | 1991 | struct pn533_data_exchange_arg { |
c46ee386 AAJ |
1992 | data_exchange_cb_t cb; |
1993 | void *cb_context; | |
1994 | }; | |
1995 | ||
6ff73fd2 SO |
1996 | static struct sk_buff *pn533_build_response(struct pn533 *dev) |
1997 | { | |
1998 | struct sk_buff *skb, *tmp, *t; | |
1999 | unsigned int skb_len = 0, tmp_len = 0; | |
2000 | ||
fcfafc76 | 2001 | nfc_dev_dbg(&dev->interface->dev, "%s", __func__); |
6ff73fd2 SO |
2002 | |
2003 | if (skb_queue_empty(&dev->resp_q)) | |
2004 | return NULL; | |
2005 | ||
2006 | if (skb_queue_len(&dev->resp_q) == 1) { | |
2007 | skb = skb_dequeue(&dev->resp_q); | |
2008 | goto out; | |
2009 | } | |
2010 | ||
2011 | skb_queue_walk_safe(&dev->resp_q, tmp, t) | |
2012 | skb_len += tmp->len; | |
2013 | ||
2014 | nfc_dev_dbg(&dev->interface->dev, "%s total length %d\n", | |
2015 | __func__, skb_len); | |
2016 | ||
2017 | skb = alloc_skb(skb_len, GFP_KERNEL); | |
2018 | if (skb == NULL) | |
2019 | goto out; | |
2020 | ||
2021 | skb_put(skb, skb_len); | |
2022 | ||
2023 | skb_queue_walk_safe(&dev->resp_q, tmp, t) { | |
2024 | memcpy(skb->data + tmp_len, tmp->data, tmp->len); | |
2025 | tmp_len += tmp->len; | |
2026 | } | |
2027 | ||
2028 | out: | |
2029 | skb_queue_purge(&dev->resp_q); | |
2030 | ||
2031 | return skb; | |
2032 | } | |
2033 | ||
c46ee386 | 2034 | static int pn533_data_exchange_complete(struct pn533 *dev, void *_arg, |
b1e666f5 | 2035 | struct sk_buff *resp) |
c46ee386 AAJ |
2036 | { |
2037 | struct pn533_data_exchange_arg *arg = _arg; | |
b1e666f5 WR |
2038 | struct sk_buff *skb; |
2039 | int rc = 0; | |
2040 | u8 status, ret, mi; | |
c46ee386 AAJ |
2041 | |
2042 | nfc_dev_dbg(&dev->interface->dev, "%s", __func__); | |
2043 | ||
b1e666f5 WR |
2044 | if (IS_ERR(resp)) { |
2045 | rc = PTR_ERR(resp); | |
2046 | goto _error; | |
c46ee386 AAJ |
2047 | } |
2048 | ||
b1e666f5 WR |
2049 | status = resp->data[0]; |
2050 | ret = status & PN533_CMD_RET_MASK; | |
2051 | mi = status & PN533_CMD_MI_MASK; | |
2052 | ||
2053 | skb_pull(resp, sizeof(status)); | |
c46ee386 | 2054 | |
b1e666f5 WR |
2055 | if (ret != PN533_CMD_RET_SUCCESS) { |
2056 | nfc_dev_err(&dev->interface->dev, | |
a45e1c8d | 2057 | "Exchanging data failed (error 0x%x)", ret); |
b1e666f5 | 2058 | rc = -EIO; |
c46ee386 AAJ |
2059 | goto error; |
2060 | } | |
2061 | ||
b1e666f5 | 2062 | skb_queue_tail(&dev->resp_q, resp); |
6ff73fd2 | 2063 | |
b1e666f5 WR |
2064 | if (mi) { |
2065 | dev->cmd_complete_mi_arg = arg; | |
6ff73fd2 SO |
2066 | queue_work(dev->wq, &dev->mi_work); |
2067 | return -EINPROGRESS; | |
c46ee386 AAJ |
2068 | } |
2069 | ||
6ff73fd2 | 2070 | skb = pn533_build_response(dev); |
b1e666f5 | 2071 | if (!skb) |
6ff73fd2 | 2072 | goto error; |
c46ee386 | 2073 | |
6ff73fd2 | 2074 | arg->cb(arg->cb_context, skb, 0); |
c46ee386 AAJ |
2075 | kfree(arg); |
2076 | return 0; | |
2077 | ||
2078 | error: | |
b1e666f5 WR |
2079 | dev_kfree_skb(resp); |
2080 | _error: | |
6ff73fd2 | 2081 | skb_queue_purge(&dev->resp_q); |
b1e666f5 | 2082 | arg->cb(arg->cb_context, NULL, rc); |
c46ee386 | 2083 | kfree(arg); |
b1e666f5 | 2084 | return rc; |
c46ee386 AAJ |
2085 | } |
2086 | ||
be9ae4ce SO |
2087 | static int pn533_transceive(struct nfc_dev *nfc_dev, |
2088 | struct nfc_target *target, struct sk_buff *skb, | |
2089 | data_exchange_cb_t cb, void *cb_context) | |
c46ee386 AAJ |
2090 | { |
2091 | struct pn533 *dev = nfc_get_drvdata(nfc_dev); | |
b1e666f5 | 2092 | struct pn533_data_exchange_arg *arg = NULL; |
c46ee386 AAJ |
2093 | int rc; |
2094 | ||
2095 | nfc_dev_dbg(&dev->interface->dev, "%s", __func__); | |
2096 | ||
b1e666f5 WR |
2097 | if (skb->len > PN533_CMD_DATAEXCH_DATA_MAXLEN) { |
2098 | /* TODO: Implement support to multi-part data exchange */ | |
2099 | nfc_dev_err(&dev->interface->dev, | |
2100 | "Data length greater than the max allowed: %d", | |
2101 | PN533_CMD_DATAEXCH_DATA_MAXLEN); | |
2102 | rc = -ENOSYS; | |
2103 | goto error; | |
2104 | } | |
2105 | ||
c46ee386 | 2106 | if (!dev->tgt_active_prot) { |
6ca55372 WR |
2107 | nfc_dev_err(&dev->interface->dev, |
2108 | "Can't exchange data if there is no active target"); | |
c46ee386 AAJ |
2109 | rc = -EINVAL; |
2110 | goto error; | |
2111 | } | |
2112 | ||
b1e666f5 | 2113 | arg = kmalloc(sizeof(*arg), GFP_KERNEL); |
c46ee386 AAJ |
2114 | if (!arg) { |
2115 | rc = -ENOMEM; | |
b1e666f5 | 2116 | goto error; |
c46ee386 AAJ |
2117 | } |
2118 | ||
c46ee386 AAJ |
2119 | arg->cb = cb; |
2120 | arg->cb_context = cb_context; | |
2121 | ||
b1e666f5 WR |
2122 | switch (dev->device_type) { |
2123 | case PN533_DEVICE_PASORI: | |
2124 | if (dev->tgt_active_prot == NFC_PROTO_FELICA) { | |
2125 | rc = pn533_send_data_async(dev, PN533_CMD_IN_COMM_THRU, | |
2126 | skb, | |
2127 | pn533_data_exchange_complete, | |
2128 | arg); | |
2129 | ||
2130 | break; | |
2131 | } | |
2132 | default: | |
2133 | *skb_push(skb, sizeof(u8)) = 1; /*TG*/ | |
2134 | ||
2135 | rc = pn533_send_data_async(dev, PN533_CMD_IN_DATA_EXCHANGE, | |
2136 | skb, pn533_data_exchange_complete, | |
2137 | arg); | |
2138 | ||
2139 | break; | |
c46ee386 AAJ |
2140 | } |
2141 | ||
b1e666f5 WR |
2142 | if (rc < 0) /* rc from send_async */ |
2143 | goto error; | |
2144 | ||
c46ee386 AAJ |
2145 | return 0; |
2146 | ||
c46ee386 | 2147 | error: |
b1e666f5 WR |
2148 | kfree(arg); |
2149 | dev_kfree_skb(skb); | |
c46ee386 AAJ |
2150 | return rc; |
2151 | } | |
2152 | ||
dadb06f2 | 2153 | static int pn533_tm_send_complete(struct pn533 *dev, void *arg, |
e4878823 | 2154 | struct sk_buff *resp) |
dadb06f2 | 2155 | { |
e4878823 | 2156 | u8 status; |
5b412fd1 | 2157 | |
dadb06f2 SO |
2158 | nfc_dev_dbg(&dev->interface->dev, "%s", __func__); |
2159 | ||
e4878823 WR |
2160 | if (IS_ERR(resp)) |
2161 | return PTR_ERR(resp); | |
5b412fd1 | 2162 | |
e4878823 | 2163 | status = resp->data[0]; |
dadb06f2 | 2164 | |
e4878823 | 2165 | dev_kfree_skb(resp); |
dadb06f2 | 2166 | |
e4878823 | 2167 | if (status != 0) { |
dadb06f2 SO |
2168 | nfc_tm_deactivated(dev->nfc_dev); |
2169 | ||
51ad304c SO |
2170 | dev->tgt_mode = 0; |
2171 | ||
dadb06f2 SO |
2172 | return 0; |
2173 | } | |
2174 | ||
2175 | queue_work(dev->wq, &dev->tg_work); | |
2176 | ||
2177 | return 0; | |
2178 | } | |
2179 | ||
2180 | static int pn533_tm_send(struct nfc_dev *nfc_dev, struct sk_buff *skb) | |
2181 | { | |
2182 | struct pn533 *dev = nfc_get_drvdata(nfc_dev); | |
dadb06f2 SO |
2183 | int rc; |
2184 | ||
2185 | nfc_dev_dbg(&dev->interface->dev, "%s", __func__); | |
2186 | ||
e4878823 | 2187 | if (skb->len > PN533_CMD_DATAEXCH_DATA_MAXLEN) { |
dadb06f2 | 2188 | nfc_dev_err(&dev->interface->dev, |
e4878823 WR |
2189 | "Data length greater than the max allowed: %d", |
2190 | PN533_CMD_DATAEXCH_DATA_MAXLEN); | |
2191 | return -ENOSYS; | |
dadb06f2 SO |
2192 | } |
2193 | ||
e4878823 WR |
2194 | rc = pn533_send_data_async(dev, PN533_CMD_TG_SET_DATA, skb, |
2195 | pn533_tm_send_complete, NULL); | |
2196 | if (rc < 0) | |
2197 | dev_kfree_skb(skb); | |
dadb06f2 SO |
2198 | |
2199 | return rc; | |
2200 | } | |
2201 | ||
6ff73fd2 SO |
2202 | static void pn533_wq_mi_recv(struct work_struct *work) |
2203 | { | |
2204 | struct pn533 *dev = container_of(work, struct pn533, mi_work); | |
b1e666f5 WR |
2205 | |
2206 | struct sk_buff *skb; | |
6ff73fd2 SO |
2207 | int rc; |
2208 | ||
2209 | nfc_dev_dbg(&dev->interface->dev, "%s", __func__); | |
2210 | ||
9e2d493e | 2211 | skb = pn533_alloc_skb(dev, PN533_CMD_DATAEXCH_HEAD_LEN); |
b1e666f5 WR |
2212 | if (!skb) |
2213 | goto error; | |
6ff73fd2 | 2214 | |
b1e666f5 WR |
2215 | switch (dev->device_type) { |
2216 | case PN533_DEVICE_PASORI: | |
2217 | if (dev->tgt_active_prot == NFC_PROTO_FELICA) { | |
2218 | rc = pn533_send_cmd_direct_async(dev, | |
2219 | PN533_CMD_IN_COMM_THRU, | |
2220 | skb, | |
2221 | pn533_data_exchange_complete, | |
2222 | dev->cmd_complete_mi_arg); | |
6ff73fd2 | 2223 | |
b1e666f5 WR |
2224 | break; |
2225 | } | |
2226 | default: | |
2227 | *skb_put(skb, sizeof(u8)) = 1; /*TG*/ | |
6ff73fd2 | 2228 | |
b1e666f5 WR |
2229 | rc = pn533_send_cmd_direct_async(dev, |
2230 | PN533_CMD_IN_DATA_EXCHANGE, | |
2231 | skb, | |
2232 | pn533_data_exchange_complete, | |
2233 | dev->cmd_complete_mi_arg); | |
b1bb290a | 2234 | |
b1e666f5 | 2235 | break; |
6ff73fd2 SO |
2236 | } |
2237 | ||
b1e666f5 | 2238 | if (rc == 0) /* success */ |
6ff73fd2 SO |
2239 | return; |
2240 | ||
b1e666f5 WR |
2241 | nfc_dev_err(&dev->interface->dev, |
2242 | "Error %d when trying to perform data_exchange", rc); | |
6ff73fd2 | 2243 | |
b1e666f5 | 2244 | dev_kfree_skb(skb); |
140ef7f6 | 2245 | kfree(dev->cmd_complete_mi_arg); |
6ff73fd2 | 2246 | |
b1e666f5 | 2247 | error: |
6ff73fd2 | 2248 | pn533_send_ack(dev, GFP_KERNEL); |
5d50b364 | 2249 | queue_work(dev->wq, &dev->cmd_work); |
6ff73fd2 SO |
2250 | } |
2251 | ||
c46ee386 AAJ |
2252 | static int pn533_set_configuration(struct pn533 *dev, u8 cfgitem, u8 *cfgdata, |
2253 | u8 cfgdata_len) | |
2254 | { | |
cb950d93 WR |
2255 | struct sk_buff *skb; |
2256 | struct sk_buff *resp; | |
2257 | ||
2258 | int skb_len; | |
c46ee386 AAJ |
2259 | |
2260 | nfc_dev_dbg(&dev->interface->dev, "%s", __func__); | |
2261 | ||
cb950d93 | 2262 | skb_len = sizeof(cfgitem) + cfgdata_len; /* cfgitem + cfgdata */ |
c46ee386 | 2263 | |
9e2d493e | 2264 | skb = pn533_alloc_skb(dev, skb_len); |
cb950d93 WR |
2265 | if (!skb) |
2266 | return -ENOMEM; | |
c46ee386 | 2267 | |
cb950d93 WR |
2268 | *skb_put(skb, sizeof(cfgitem)) = cfgitem; |
2269 | memcpy(skb_put(skb, cfgdata_len), cfgdata, cfgdata_len); | |
c46ee386 | 2270 | |
cb950d93 WR |
2271 | resp = pn533_send_cmd_sync(dev, PN533_CMD_RF_CONFIGURATION, skb); |
2272 | if (IS_ERR(resp)) | |
2273 | return PTR_ERR(resp); | |
c46ee386 | 2274 | |
cb950d93 WR |
2275 | dev_kfree_skb(resp); |
2276 | return 0; | |
2277 | } | |
2278 | ||
2279 | static int pn533_get_firmware_version(struct pn533 *dev, | |
2280 | struct pn533_fw_version *fv) | |
2281 | { | |
2282 | struct sk_buff *skb; | |
2283 | struct sk_buff *resp; | |
2284 | ||
9e2d493e | 2285 | skb = pn533_alloc_skb(dev, 0); |
cb950d93 WR |
2286 | if (!skb) |
2287 | return -ENOMEM; | |
2288 | ||
2289 | resp = pn533_send_cmd_sync(dev, PN533_CMD_GET_FIRMWARE_VERSION, skb); | |
2290 | if (IS_ERR(resp)) | |
2291 | return PTR_ERR(resp); | |
2292 | ||
2293 | fv->ic = resp->data[0]; | |
2294 | fv->ver = resp->data[1]; | |
2295 | fv->rev = resp->data[2]; | |
2296 | fv->support = resp->data[3]; | |
2297 | ||
2298 | dev_kfree_skb(resp); | |
2299 | return 0; | |
c46ee386 AAJ |
2300 | } |
2301 | ||
f75c2913 | 2302 | static int pn533_pasori_fw_reset(struct pn533 *dev) |
5c7b0531 | 2303 | { |
cb950d93 WR |
2304 | struct sk_buff *skb; |
2305 | struct sk_buff *resp; | |
5c7b0531 SO |
2306 | |
2307 | nfc_dev_dbg(&dev->interface->dev, "%s", __func__); | |
2308 | ||
9e2d493e | 2309 | skb = pn533_alloc_skb(dev, sizeof(u8)); |
cb950d93 WR |
2310 | if (!skb) |
2311 | return -ENOMEM; | |
5c7b0531 | 2312 | |
cb950d93 | 2313 | *skb_put(skb, sizeof(u8)) = 0x1; |
5c7b0531 | 2314 | |
cb950d93 WR |
2315 | resp = pn533_send_cmd_sync(dev, 0x18, skb); |
2316 | if (IS_ERR(resp)) | |
2317 | return PTR_ERR(resp); | |
5c7b0531 | 2318 | |
cb950d93 | 2319 | dev_kfree_skb(resp); |
5c7b0531 | 2320 | |
94c5c156 | 2321 | return 0; |
5c7b0531 SO |
2322 | } |
2323 | ||
2324 | static struct nfc_ops pn533_nfc_ops = { | |
8b3fe7b5 IE |
2325 | .dev_up = NULL, |
2326 | .dev_down = NULL, | |
361f3cb7 SO |
2327 | .dep_link_up = pn533_dep_link_up, |
2328 | .dep_link_down = pn533_dep_link_down, | |
c46ee386 AAJ |
2329 | .start_poll = pn533_start_poll, |
2330 | .stop_poll = pn533_stop_poll, | |
2331 | .activate_target = pn533_activate_target, | |
2332 | .deactivate_target = pn533_deactivate_target, | |
be9ae4ce | 2333 | .im_transceive = pn533_transceive, |
dadb06f2 | 2334 | .tm_send = pn533_tm_send, |
c46ee386 AAJ |
2335 | }; |
2336 | ||
5c7b0531 SO |
2337 | static int pn533_setup(struct pn533 *dev) |
2338 | { | |
2339 | struct pn533_config_max_retries max_retries; | |
2340 | struct pn533_config_timing timing; | |
2341 | u8 pasori_cfg[3] = {0x08, 0x01, 0x08}; | |
2342 | int rc; | |
2343 | ||
2344 | switch (dev->device_type) { | |
2345 | case PN533_DEVICE_STD: | |
2346 | max_retries.mx_rty_atr = PN533_CONFIG_MAX_RETRIES_ENDLESS; | |
2347 | max_retries.mx_rty_psl = 2; | |
2348 | max_retries.mx_rty_passive_act = | |
2349 | PN533_CONFIG_MAX_RETRIES_NO_RETRY; | |
2350 | ||
2351 | timing.rfu = PN533_CONFIG_TIMING_102; | |
2352 | timing.atr_res_timeout = PN533_CONFIG_TIMING_204; | |
2353 | timing.dep_timeout = PN533_CONFIG_TIMING_409; | |
2354 | ||
2355 | break; | |
2356 | ||
2357 | case PN533_DEVICE_PASORI: | |
2358 | max_retries.mx_rty_atr = 0x2; | |
2359 | max_retries.mx_rty_psl = 0x1; | |
2360 | max_retries.mx_rty_passive_act = | |
2361 | PN533_CONFIG_MAX_RETRIES_NO_RETRY; | |
2362 | ||
2363 | timing.rfu = PN533_CONFIG_TIMING_102; | |
2364 | timing.atr_res_timeout = PN533_CONFIG_TIMING_102; | |
2365 | timing.dep_timeout = PN533_CONFIG_TIMING_204; | |
2366 | ||
2367 | break; | |
2368 | ||
2369 | default: | |
2370 | nfc_dev_err(&dev->interface->dev, "Unknown device type %d\n", | |
2371 | dev->device_type); | |
2372 | return -EINVAL; | |
2373 | } | |
2374 | ||
2375 | rc = pn533_set_configuration(dev, PN533_CFGITEM_MAX_RETRIES, | |
2376 | (u8 *)&max_retries, sizeof(max_retries)); | |
2377 | if (rc) { | |
2378 | nfc_dev_err(&dev->interface->dev, | |
2379 | "Error on setting MAX_RETRIES config"); | |
2380 | return rc; | |
2381 | } | |
2382 | ||
2383 | ||
2384 | rc = pn533_set_configuration(dev, PN533_CFGITEM_TIMING, | |
2385 | (u8 *)&timing, sizeof(timing)); | |
2386 | if (rc) { | |
2387 | nfc_dev_err(&dev->interface->dev, | |
2388 | "Error on setting RF timings"); | |
2389 | return rc; | |
2390 | } | |
2391 | ||
2392 | switch (dev->device_type) { | |
2393 | case PN533_DEVICE_STD: | |
2394 | break; | |
2395 | ||
2396 | case PN533_DEVICE_PASORI: | |
f75c2913 | 2397 | pn533_pasori_fw_reset(dev); |
5c7b0531 SO |
2398 | |
2399 | rc = pn533_set_configuration(dev, PN533_CFGITEM_PASORI, | |
2400 | pasori_cfg, 3); | |
2401 | if (rc) { | |
2402 | nfc_dev_err(&dev->interface->dev, | |
2403 | "Error while settings PASORI config"); | |
2404 | return rc; | |
2405 | } | |
2406 | ||
f75c2913 | 2407 | pn533_pasori_fw_reset(dev); |
5c7b0531 SO |
2408 | |
2409 | break; | |
2410 | } | |
2411 | ||
2412 | return 0; | |
2413 | } | |
2414 | ||
c46ee386 AAJ |
2415 | static int pn533_probe(struct usb_interface *interface, |
2416 | const struct usb_device_id *id) | |
2417 | { | |
cb950d93 | 2418 | struct pn533_fw_version fw_ver; |
c46ee386 AAJ |
2419 | struct pn533 *dev; |
2420 | struct usb_host_interface *iface_desc; | |
2421 | struct usb_endpoint_descriptor *endpoint; | |
c46ee386 AAJ |
2422 | int in_endpoint = 0; |
2423 | int out_endpoint = 0; | |
2424 | int rc = -ENOMEM; | |
2425 | int i; | |
2426 | u32 protocols; | |
2427 | ||
2428 | dev = kzalloc(sizeof(*dev), GFP_KERNEL); | |
2429 | if (!dev) | |
2430 | return -ENOMEM; | |
2431 | ||
2432 | dev->udev = usb_get_dev(interface_to_usbdev(interface)); | |
2433 | dev->interface = interface; | |
0201ed03 | 2434 | mutex_init(&dev->cmd_lock); |
c46ee386 AAJ |
2435 | |
2436 | iface_desc = interface->cur_altsetting; | |
2437 | for (i = 0; i < iface_desc->desc.bNumEndpoints; ++i) { | |
2438 | endpoint = &iface_desc->endpoint[i].desc; | |
2439 | ||
8d25ca79 | 2440 | if (!in_endpoint && usb_endpoint_is_bulk_in(endpoint)) |
c46ee386 | 2441 | in_endpoint = endpoint->bEndpointAddress; |
c46ee386 | 2442 | |
8d25ca79 | 2443 | if (!out_endpoint && usb_endpoint_is_bulk_out(endpoint)) |
c46ee386 | 2444 | out_endpoint = endpoint->bEndpointAddress; |
c46ee386 AAJ |
2445 | } |
2446 | ||
2447 | if (!in_endpoint || !out_endpoint) { | |
6ca55372 WR |
2448 | nfc_dev_err(&interface->dev, |
2449 | "Could not find bulk-in or bulk-out endpoint"); | |
c46ee386 AAJ |
2450 | rc = -ENODEV; |
2451 | goto error; | |
2452 | } | |
2453 | ||
c46ee386 | 2454 | dev->in_urb = usb_alloc_urb(0, GFP_KERNEL); |
c46ee386 AAJ |
2455 | dev->out_urb = usb_alloc_urb(0, GFP_KERNEL); |
2456 | ||
a5798094 | 2457 | if (!dev->in_urb || !dev->out_urb) |
c46ee386 AAJ |
2458 | goto error; |
2459 | ||
2460 | usb_fill_bulk_urb(dev->in_urb, dev->udev, | |
5d467742 WR |
2461 | usb_rcvbulkpipe(dev->udev, in_endpoint), |
2462 | NULL, 0, NULL, dev); | |
c46ee386 | 2463 | usb_fill_bulk_urb(dev->out_urb, dev->udev, |
5d467742 WR |
2464 | usb_sndbulkpipe(dev->udev, out_endpoint), |
2465 | NULL, 0, pn533_send_complete, dev); | |
c46ee386 | 2466 | |
5d50b364 SO |
2467 | INIT_WORK(&dev->cmd_work, pn533_wq_cmd); |
2468 | INIT_WORK(&dev->cmd_complete_work, pn533_wq_cmd_complete); | |
6ff73fd2 | 2469 | INIT_WORK(&dev->mi_work, pn533_wq_mi_recv); |
103b34cf | 2470 | INIT_WORK(&dev->tg_work, pn533_wq_tg_get_data); |
6fbbdc16 | 2471 | INIT_WORK(&dev->poll_work, pn533_wq_poll); |
58637c9b | 2472 | dev->wq = alloc_ordered_workqueue("pn533", 0); |
4849f85e SO |
2473 | if (dev->wq == NULL) |
2474 | goto error; | |
c46ee386 | 2475 | |
6fbbdc16 SO |
2476 | init_timer(&dev->listen_timer); |
2477 | dev->listen_timer.data = (unsigned long) dev; | |
2478 | dev->listen_timer.function = pn533_listen_mode_timer; | |
2479 | ||
6ff73fd2 SO |
2480 | skb_queue_head_init(&dev->resp_q); |
2481 | ||
5d50b364 SO |
2482 | INIT_LIST_HEAD(&dev->cmd_queue); |
2483 | ||
c46ee386 AAJ |
2484 | usb_set_intfdata(interface, dev); |
2485 | ||
9e2d493e | 2486 | dev->ops = &pn533_std_frame_ops; |
c46ee386 | 2487 | |
5c7b0531 SO |
2488 | dev->device_type = id->driver_info; |
2489 | switch (dev->device_type) { | |
2490 | case PN533_DEVICE_STD: | |
2491 | protocols = PN533_ALL_PROTOCOLS; | |
2492 | break; | |
2493 | ||
2494 | case PN533_DEVICE_PASORI: | |
2495 | protocols = PN533_NO_TYPE_B_PROTOCOLS; | |
2496 | break; | |
2497 | ||
2498 | default: | |
2499 | nfc_dev_err(&dev->interface->dev, "Unknown device type %d\n", | |
2500 | dev->device_type); | |
2501 | rc = -EINVAL; | |
2502 | goto destroy_wq; | |
2503 | } | |
c46ee386 | 2504 | |
9e2d493e WR |
2505 | memset(&fw_ver, 0, sizeof(fw_ver)); |
2506 | rc = pn533_get_firmware_version(dev, &fw_ver); | |
2507 | if (rc < 0) | |
2508 | goto destroy_wq; | |
2509 | ||
2510 | nfc_dev_info(&dev->interface->dev, | |
2511 | "NXP PN533 firmware ver %d.%d now attached", | |
2512 | fw_ver.ver, fw_ver.rev); | |
2513 | ||
2514 | ||
e8753043 | 2515 | dev->nfc_dev = nfc_allocate_device(&pn533_nfc_ops, protocols, |
390a1bd8 | 2516 | NFC_SE_NONE, |
9e2d493e | 2517 | dev->ops->tx_header_len + |
e8753043 | 2518 | PN533_CMD_DATAEXCH_HEAD_LEN, |
9e2d493e | 2519 | dev->ops->tx_tail_len); |
c46ee386 | 2520 | if (!dev->nfc_dev) |
4849f85e | 2521 | goto destroy_wq; |
c46ee386 AAJ |
2522 | |
2523 | nfc_set_parent_dev(dev->nfc_dev, &interface->dev); | |
2524 | nfc_set_drvdata(dev->nfc_dev, dev); | |
2525 | ||
2526 | rc = nfc_register_device(dev->nfc_dev); | |
2527 | if (rc) | |
2528 | goto free_nfc_dev; | |
2529 | ||
5c7b0531 SO |
2530 | rc = pn533_setup(dev); |
2531 | if (rc) | |
34a85bfc | 2532 | goto unregister_nfc_dev; |
34a85bfc | 2533 | |
c46ee386 AAJ |
2534 | return 0; |
2535 | ||
9f2f8ba1 SO |
2536 | unregister_nfc_dev: |
2537 | nfc_unregister_device(dev->nfc_dev); | |
2538 | ||
c46ee386 AAJ |
2539 | free_nfc_dev: |
2540 | nfc_free_device(dev->nfc_dev); | |
9f2f8ba1 | 2541 | |
4849f85e SO |
2542 | destroy_wq: |
2543 | destroy_workqueue(dev->wq); | |
c46ee386 | 2544 | error: |
c46ee386 | 2545 | usb_free_urb(dev->in_urb); |
c46ee386 AAJ |
2546 | usb_free_urb(dev->out_urb); |
2547 | kfree(dev); | |
2548 | return rc; | |
2549 | } | |
2550 | ||
2551 | static void pn533_disconnect(struct usb_interface *interface) | |
2552 | { | |
2553 | struct pn533 *dev; | |
5d50b364 | 2554 | struct pn533_cmd *cmd, *n; |
c46ee386 AAJ |
2555 | |
2556 | dev = usb_get_intfdata(interface); | |
2557 | usb_set_intfdata(interface, NULL); | |
2558 | ||
2559 | nfc_unregister_device(dev->nfc_dev); | |
2560 | nfc_free_device(dev->nfc_dev); | |
2561 | ||
2562 | usb_kill_urb(dev->in_urb); | |
2563 | usb_kill_urb(dev->out_urb); | |
2564 | ||
4849f85e | 2565 | destroy_workqueue(dev->wq); |
c46ee386 | 2566 | |
6ff73fd2 SO |
2567 | skb_queue_purge(&dev->resp_q); |
2568 | ||
6fbbdc16 SO |
2569 | del_timer(&dev->listen_timer); |
2570 | ||
5d50b364 SO |
2571 | list_for_each_entry_safe(cmd, n, &dev->cmd_queue, queue) { |
2572 | list_del(&cmd->queue); | |
2573 | kfree(cmd); | |
2574 | } | |
2575 | ||
c46ee386 | 2576 | usb_free_urb(dev->in_urb); |
c46ee386 AAJ |
2577 | usb_free_urb(dev->out_urb); |
2578 | kfree(dev); | |
2579 | ||
276556db | 2580 | nfc_dev_info(&interface->dev, "NXP PN533 NFC device disconnected"); |
c46ee386 AAJ |
2581 | } |
2582 | ||
2583 | static struct usb_driver pn533_driver = { | |
2584 | .name = "pn533", | |
2585 | .probe = pn533_probe, | |
2586 | .disconnect = pn533_disconnect, | |
2587 | .id_table = pn533_table, | |
2588 | }; | |
2589 | ||
fe748483 | 2590 | module_usb_driver(pn533_driver); |
c46ee386 | 2591 | |
e70b96e9 WR |
2592 | MODULE_AUTHOR("Lauro Ramos Venancio <lauro.venancio@openbossa.org>"); |
2593 | MODULE_AUTHOR("Aloisio Almeida Jr <aloisio.almeida@openbossa.org>"); | |
2594 | MODULE_AUTHOR("Waldemar Rymarkiewicz <waldemar.rymarkiewicz@tieto.com>"); | |
c46ee386 AAJ |
2595 | MODULE_DESCRIPTION("PN533 usb driver ver " VERSION); |
2596 | MODULE_VERSION(VERSION); | |
2597 | MODULE_LICENSE("GPL"); |