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562d4d59 TE |
1 | /* |
2 | * Sony NFC Port-100 Series driver | |
3 | * Copyright (c) 2013, Intel Corporation. | |
4 | * | |
5 | * Partly based/Inspired by Stephen Tiedemann's nfcpy | |
6 | * | |
7 | * This program is free software; you can redistribute it and/or modify it | |
8 | * under the terms and conditions of the GNU General Public License, | |
9 | * version 2, as published by the Free Software Foundation. | |
10 | * | |
11 | * This program is distributed in the hope it will be useful, but WITHOUT | |
12 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
13 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for | |
14 | * more details. | |
15 | * | |
16 | */ | |
17 | ||
18 | #include <linux/module.h> | |
19 | #include <linux/usb.h> | |
20 | #include <net/nfc/digital.h> | |
21 | ||
22 | #define VERSION "0.1" | |
23 | ||
9728ee92 OH |
24 | #define SONY_VENDOR_ID 0x054c |
25 | #define RCS380S_PRODUCT_ID 0x06c1 | |
26 | #define RCS380P_PRODUCT_ID 0x06c3 | |
562d4d59 TE |
27 | |
28 | #define PORT100_PROTOCOLS (NFC_PROTO_JEWEL_MASK | \ | |
29 | NFC_PROTO_MIFARE_MASK | \ | |
30 | NFC_PROTO_FELICA_MASK | \ | |
2a26f9a2 | 31 | NFC_PROTO_NFC_DEP_MASK | \ |
09592ccf TE |
32 | NFC_PROTO_ISO14443_MASK | \ |
33 | NFC_PROTO_ISO14443_B_MASK) | |
562d4d59 TE |
34 | |
35 | #define PORT100_CAPABILITIES (NFC_DIGITAL_DRV_CAPS_IN_CRC | \ | |
36 | NFC_DIGITAL_DRV_CAPS_TG_CRC) | |
37 | ||
0347a6ab TE |
38 | /* Standard port100 frame definitions */ |
39 | #define PORT100_FRAME_HEADER_LEN (sizeof(struct port100_frame) \ | |
40 | + 2) /* data[0] CC, data[1] SCC */ | |
41 | #define PORT100_FRAME_TAIL_LEN 2 /* data[len] DCS, data[len + 1] postamble*/ | |
42 | ||
43 | #define PORT100_COMM_RF_HEAD_MAX_LEN (sizeof(struct port100_tg_comm_rf_cmd)) | |
44 | ||
45 | /* | |
46 | * Max extended frame payload len, excluding CC and SCC | |
47 | * which are already in PORT100_FRAME_HEADER_LEN. | |
48 | */ | |
49 | #define PORT100_FRAME_MAX_PAYLOAD_LEN 1001 | |
50 | ||
51 | #define PORT100_FRAME_ACK_SIZE 6 /* Preamble (1), SoPC (2), ACK Code (2), | |
52 | Postamble (1) */ | |
53 | static u8 ack_frame[PORT100_FRAME_ACK_SIZE] = { | |
54 | 0x00, 0x00, 0xff, 0x00, 0xff, 0x00 | |
55 | }; | |
56 | ||
57 | #define PORT100_FRAME_CHECKSUM(f) (f->data[le16_to_cpu(f->datalen)]) | |
58 | #define PORT100_FRAME_POSTAMBLE(f) (f->data[le16_to_cpu(f->datalen) + 1]) | |
59 | ||
60 | /* start of frame */ | |
61 | #define PORT100_FRAME_SOF 0x00FF | |
62 | #define PORT100_FRAME_EXT 0xFFFF | |
63 | #define PORT100_FRAME_ACK 0x00FF | |
64 | ||
65 | /* Port-100 command: in or out */ | |
66 | #define PORT100_FRAME_DIRECTION(f) (f->data[0]) /* CC */ | |
67 | #define PORT100_FRAME_DIR_OUT 0xD6 | |
68 | #define PORT100_FRAME_DIR_IN 0xD7 | |
69 | ||
70 | /* Port-100 sub-command */ | |
71 | #define PORT100_FRAME_CMD(f) (f->data[1]) /* SCC */ | |
72 | ||
73 | #define PORT100_CMD_GET_FIRMWARE_VERSION 0x20 | |
74 | #define PORT100_CMD_GET_COMMAND_TYPE 0x28 | |
75 | #define PORT100_CMD_SET_COMMAND_TYPE 0x2A | |
76 | ||
9f7b57f2 TE |
77 | #define PORT100_CMD_IN_SET_RF 0x00 |
78 | #define PORT100_CMD_IN_SET_PROTOCOL 0x02 | |
79 | #define PORT100_CMD_IN_COMM_RF 0x04 | |
80 | ||
7227c021 TE |
81 | #define PORT100_CMD_TG_SET_RF 0x40 |
82 | #define PORT100_CMD_TG_SET_PROTOCOL 0x42 | |
83 | #define PORT100_CMD_TG_SET_RF_OFF 0x46 | |
84 | #define PORT100_CMD_TG_COMM_RF 0x48 | |
85 | ||
9f7b57f2 TE |
86 | #define PORT100_CMD_SWITCH_RF 0x06 |
87 | ||
0347a6ab TE |
88 | #define PORT100_CMD_RESPONSE(cmd) (cmd + 1) |
89 | ||
90 | #define PORT100_CMD_TYPE_IS_SUPPORTED(mask, cmd_type) \ | |
91 | ((mask) & (0x01 << (cmd_type))) | |
92 | #define PORT100_CMD_TYPE_0 0 | |
93 | #define PORT100_CMD_TYPE_1 1 | |
94 | ||
9f7b57f2 TE |
95 | #define PORT100_CMD_STATUS_OK 0x00 |
96 | #define PORT100_CMD_STATUS_TIMEOUT 0x80 | |
97 | ||
7227c021 TE |
98 | #define PORT100_MDAA_TGT_HAS_BEEN_ACTIVATED_MASK 0x01 |
99 | #define PORT100_MDAA_TGT_WAS_ACTIVATED_MASK 0x02 | |
100 | ||
0347a6ab TE |
101 | struct port100; |
102 | ||
103 | typedef void (*port100_send_async_complete_t)(struct port100 *dev, void *arg, | |
104 | struct sk_buff *resp); | |
105 | ||
9f7b57f2 TE |
106 | /** |
107 | * Setting sets structure for in_set_rf command | |
108 | * | |
109 | * @in_*_set_number: Represent the entry indexes in the port-100 RF Base Table. | |
110 | * This table contains multiple RF setting sets required for RF | |
111 | * communication. | |
112 | * | |
113 | * @in_*_comm_type: Theses fields set the communication type to be used. | |
114 | */ | |
115 | struct port100_in_rf_setting { | |
116 | u8 in_send_set_number; | |
117 | u8 in_send_comm_type; | |
118 | u8 in_recv_set_number; | |
119 | u8 in_recv_comm_type; | |
120 | } __packed; | |
121 | ||
122 | #define PORT100_COMM_TYPE_IN_212F 0x01 | |
123 | #define PORT100_COMM_TYPE_IN_424F 0x02 | |
124 | #define PORT100_COMM_TYPE_IN_106A 0x03 | |
09592ccf | 125 | #define PORT100_COMM_TYPE_IN_106B 0x07 |
9f7b57f2 TE |
126 | |
127 | static const struct port100_in_rf_setting in_rf_settings[] = { | |
128 | [NFC_DIGITAL_RF_TECH_212F] = { | |
129 | .in_send_set_number = 1, | |
130 | .in_send_comm_type = PORT100_COMM_TYPE_IN_212F, | |
131 | .in_recv_set_number = 15, | |
132 | .in_recv_comm_type = PORT100_COMM_TYPE_IN_212F, | |
133 | }, | |
134 | [NFC_DIGITAL_RF_TECH_424F] = { | |
135 | .in_send_set_number = 1, | |
136 | .in_send_comm_type = PORT100_COMM_TYPE_IN_424F, | |
137 | .in_recv_set_number = 15, | |
138 | .in_recv_comm_type = PORT100_COMM_TYPE_IN_424F, | |
139 | }, | |
140 | [NFC_DIGITAL_RF_TECH_106A] = { | |
141 | .in_send_set_number = 2, | |
142 | .in_send_comm_type = PORT100_COMM_TYPE_IN_106A, | |
143 | .in_recv_set_number = 15, | |
144 | .in_recv_comm_type = PORT100_COMM_TYPE_IN_106A, | |
145 | }, | |
09592ccf TE |
146 | [NFC_DIGITAL_RF_TECH_106B] = { |
147 | .in_send_set_number = 3, | |
148 | .in_send_comm_type = PORT100_COMM_TYPE_IN_106B, | |
149 | .in_recv_set_number = 15, | |
150 | .in_recv_comm_type = PORT100_COMM_TYPE_IN_106B, | |
151 | }, | |
d3815ea9 TE |
152 | /* Ensures the array has NFC_DIGITAL_RF_TECH_LAST elements */ |
153 | [NFC_DIGITAL_RF_TECH_LAST] = { 0 }, | |
9f7b57f2 TE |
154 | }; |
155 | ||
7227c021 TE |
156 | /** |
157 | * Setting sets structure for tg_set_rf command | |
158 | * | |
159 | * @tg_set_number: Represents the entry index in the port-100 RF Base Table. | |
160 | * This table contains multiple RF setting sets required for RF | |
161 | * communication. this field is used for both send and receive | |
162 | * settings. | |
163 | * | |
164 | * @tg_comm_type: Sets the communication type to be used to send and receive | |
165 | * data. | |
166 | */ | |
167 | struct port100_tg_rf_setting { | |
168 | u8 tg_set_number; | |
169 | u8 tg_comm_type; | |
170 | } __packed; | |
171 | ||
172 | #define PORT100_COMM_TYPE_TG_106A 0x0B | |
173 | #define PORT100_COMM_TYPE_TG_212F 0x0C | |
174 | #define PORT100_COMM_TYPE_TG_424F 0x0D | |
175 | ||
176 | static const struct port100_tg_rf_setting tg_rf_settings[] = { | |
177 | [NFC_DIGITAL_RF_TECH_106A] = { | |
178 | .tg_set_number = 8, | |
179 | .tg_comm_type = PORT100_COMM_TYPE_TG_106A, | |
180 | }, | |
181 | [NFC_DIGITAL_RF_TECH_212F] = { | |
182 | .tg_set_number = 8, | |
183 | .tg_comm_type = PORT100_COMM_TYPE_TG_212F, | |
184 | }, | |
185 | [NFC_DIGITAL_RF_TECH_424F] = { | |
186 | .tg_set_number = 8, | |
187 | .tg_comm_type = PORT100_COMM_TYPE_TG_424F, | |
188 | }, | |
d3815ea9 TE |
189 | /* Ensures the array has NFC_DIGITAL_RF_TECH_LAST elements */ |
190 | [NFC_DIGITAL_RF_TECH_LAST] = { 0 }, | |
191 | ||
7227c021 TE |
192 | }; |
193 | ||
9f7b57f2 TE |
194 | #define PORT100_IN_PROT_INITIAL_GUARD_TIME 0x00 |
195 | #define PORT100_IN_PROT_ADD_CRC 0x01 | |
196 | #define PORT100_IN_PROT_CHECK_CRC 0x02 | |
197 | #define PORT100_IN_PROT_MULTI_CARD 0x03 | |
198 | #define PORT100_IN_PROT_ADD_PARITY 0x04 | |
199 | #define PORT100_IN_PROT_CHECK_PARITY 0x05 | |
200 | #define PORT100_IN_PROT_BITWISE_AC_RECV_MODE 0x06 | |
201 | #define PORT100_IN_PROT_VALID_BIT_NUMBER 0x07 | |
202 | #define PORT100_IN_PROT_CRYPTO1 0x08 | |
203 | #define PORT100_IN_PROT_ADD_SOF 0x09 | |
204 | #define PORT100_IN_PROT_CHECK_SOF 0x0A | |
205 | #define PORT100_IN_PROT_ADD_EOF 0x0B | |
206 | #define PORT100_IN_PROT_CHECK_EOF 0x0C | |
207 | #define PORT100_IN_PROT_DEAF_TIME 0x0E | |
208 | #define PORT100_IN_PROT_CRM 0x0F | |
209 | #define PORT100_IN_PROT_CRM_MIN_LEN 0x10 | |
210 | #define PORT100_IN_PROT_T1_TAG_FRAME 0x11 | |
211 | #define PORT100_IN_PROT_RFCA 0x12 | |
212 | #define PORT100_IN_PROT_GUARD_TIME_AT_INITIATOR 0x13 | |
213 | #define PORT100_IN_PROT_END 0x14 | |
214 | ||
215 | #define PORT100_IN_MAX_NUM_PROTOCOLS 19 | |
216 | ||
7227c021 TE |
217 | #define PORT100_TG_PROT_TU 0x00 |
218 | #define PORT100_TG_PROT_RF_OFF 0x01 | |
219 | #define PORT100_TG_PROT_CRM 0x02 | |
220 | #define PORT100_TG_PROT_END 0x03 | |
221 | ||
222 | #define PORT100_TG_MAX_NUM_PROTOCOLS 3 | |
223 | ||
9f7b57f2 TE |
224 | struct port100_protocol { |
225 | u8 number; | |
226 | u8 value; | |
227 | } __packed; | |
228 | ||
229 | static struct port100_protocol | |
230 | in_protocols[][PORT100_IN_MAX_NUM_PROTOCOLS + 1] = { | |
231 | [NFC_DIGITAL_FRAMING_NFCA_SHORT] = { | |
232 | { PORT100_IN_PROT_INITIAL_GUARD_TIME, 6 }, | |
233 | { PORT100_IN_PROT_ADD_CRC, 0 }, | |
234 | { PORT100_IN_PROT_CHECK_CRC, 0 }, | |
235 | { PORT100_IN_PROT_MULTI_CARD, 0 }, | |
236 | { PORT100_IN_PROT_ADD_PARITY, 0 }, | |
237 | { PORT100_IN_PROT_CHECK_PARITY, 1 }, | |
238 | { PORT100_IN_PROT_BITWISE_AC_RECV_MODE, 0 }, | |
239 | { PORT100_IN_PROT_VALID_BIT_NUMBER, 7 }, | |
240 | { PORT100_IN_PROT_CRYPTO1, 0 }, | |
241 | { PORT100_IN_PROT_ADD_SOF, 0 }, | |
242 | { PORT100_IN_PROT_CHECK_SOF, 0 }, | |
243 | { PORT100_IN_PROT_ADD_EOF, 0 }, | |
244 | { PORT100_IN_PROT_CHECK_EOF, 0 }, | |
245 | { PORT100_IN_PROT_DEAF_TIME, 4 }, | |
246 | { PORT100_IN_PROT_CRM, 0 }, | |
247 | { PORT100_IN_PROT_CRM_MIN_LEN, 0 }, | |
248 | { PORT100_IN_PROT_T1_TAG_FRAME, 0 }, | |
249 | { PORT100_IN_PROT_RFCA, 0 }, | |
250 | { PORT100_IN_PROT_GUARD_TIME_AT_INITIATOR, 6 }, | |
251 | { PORT100_IN_PROT_END, 0 }, | |
252 | }, | |
253 | [NFC_DIGITAL_FRAMING_NFCA_STANDARD] = { | |
254 | { PORT100_IN_PROT_INITIAL_GUARD_TIME, 6 }, | |
255 | { PORT100_IN_PROT_ADD_CRC, 0 }, | |
256 | { PORT100_IN_PROT_CHECK_CRC, 0 }, | |
257 | { PORT100_IN_PROT_MULTI_CARD, 0 }, | |
258 | { PORT100_IN_PROT_ADD_PARITY, 1 }, | |
259 | { PORT100_IN_PROT_CHECK_PARITY, 1 }, | |
260 | { PORT100_IN_PROT_BITWISE_AC_RECV_MODE, 0 }, | |
261 | { PORT100_IN_PROT_VALID_BIT_NUMBER, 8 }, | |
262 | { PORT100_IN_PROT_CRYPTO1, 0 }, | |
263 | { PORT100_IN_PROT_ADD_SOF, 0 }, | |
264 | { PORT100_IN_PROT_CHECK_SOF, 0 }, | |
265 | { PORT100_IN_PROT_ADD_EOF, 0 }, | |
266 | { PORT100_IN_PROT_CHECK_EOF, 0 }, | |
267 | { PORT100_IN_PROT_DEAF_TIME, 4 }, | |
268 | { PORT100_IN_PROT_CRM, 0 }, | |
269 | { PORT100_IN_PROT_CRM_MIN_LEN, 0 }, | |
270 | { PORT100_IN_PROT_T1_TAG_FRAME, 0 }, | |
271 | { PORT100_IN_PROT_RFCA, 0 }, | |
272 | { PORT100_IN_PROT_GUARD_TIME_AT_INITIATOR, 6 }, | |
273 | { PORT100_IN_PROT_END, 0 }, | |
274 | }, | |
275 | [NFC_DIGITAL_FRAMING_NFCA_STANDARD_WITH_CRC_A] = { | |
276 | { PORT100_IN_PROT_INITIAL_GUARD_TIME, 6 }, | |
277 | { PORT100_IN_PROT_ADD_CRC, 1 }, | |
278 | { PORT100_IN_PROT_CHECK_CRC, 1 }, | |
279 | { PORT100_IN_PROT_MULTI_CARD, 0 }, | |
280 | { PORT100_IN_PROT_ADD_PARITY, 1 }, | |
281 | { PORT100_IN_PROT_CHECK_PARITY, 1 }, | |
282 | { PORT100_IN_PROT_BITWISE_AC_RECV_MODE, 0 }, | |
283 | { PORT100_IN_PROT_VALID_BIT_NUMBER, 8 }, | |
284 | { PORT100_IN_PROT_CRYPTO1, 0 }, | |
285 | { PORT100_IN_PROT_ADD_SOF, 0 }, | |
286 | { PORT100_IN_PROT_CHECK_SOF, 0 }, | |
287 | { PORT100_IN_PROT_ADD_EOF, 0 }, | |
288 | { PORT100_IN_PROT_CHECK_EOF, 0 }, | |
289 | { PORT100_IN_PROT_DEAF_TIME, 4 }, | |
290 | { PORT100_IN_PROT_CRM, 0 }, | |
291 | { PORT100_IN_PROT_CRM_MIN_LEN, 0 }, | |
292 | { PORT100_IN_PROT_T1_TAG_FRAME, 0 }, | |
293 | { PORT100_IN_PROT_RFCA, 0 }, | |
294 | { PORT100_IN_PROT_GUARD_TIME_AT_INITIATOR, 6 }, | |
295 | { PORT100_IN_PROT_END, 0 }, | |
296 | }, | |
297 | [NFC_DIGITAL_FRAMING_NFCA_T1T] = { | |
298 | /* nfc_digital_framing_nfca_short */ | |
299 | { PORT100_IN_PROT_ADD_CRC, 2 }, | |
300 | { PORT100_IN_PROT_CHECK_CRC, 2 }, | |
301 | { PORT100_IN_PROT_VALID_BIT_NUMBER, 8 }, | |
302 | { PORT100_IN_PROT_T1_TAG_FRAME, 2 }, | |
303 | { PORT100_IN_PROT_END, 0 }, | |
304 | }, | |
305 | [NFC_DIGITAL_FRAMING_NFCA_T2T] = { | |
306 | /* nfc_digital_framing_nfca_standard */ | |
307 | { PORT100_IN_PROT_ADD_CRC, 1 }, | |
308 | { PORT100_IN_PROT_CHECK_CRC, 0 }, | |
309 | { PORT100_IN_PROT_END, 0 }, | |
310 | }, | |
2a26f9a2 TE |
311 | [NFC_DIGITAL_FRAMING_NFCA_T4T] = { |
312 | /* nfc_digital_framing_nfca_standard_with_crc_a */ | |
313 | { PORT100_IN_PROT_END, 0 }, | |
314 | }, | |
9f7b57f2 TE |
315 | [NFC_DIGITAL_FRAMING_NFCA_NFC_DEP] = { |
316 | /* nfc_digital_framing_nfca_standard */ | |
317 | { PORT100_IN_PROT_END, 0 }, | |
318 | }, | |
319 | [NFC_DIGITAL_FRAMING_NFCF] = { | |
320 | { PORT100_IN_PROT_INITIAL_GUARD_TIME, 18 }, | |
321 | { PORT100_IN_PROT_ADD_CRC, 1 }, | |
322 | { PORT100_IN_PROT_CHECK_CRC, 1 }, | |
323 | { PORT100_IN_PROT_MULTI_CARD, 0 }, | |
324 | { PORT100_IN_PROT_ADD_PARITY, 0 }, | |
325 | { PORT100_IN_PROT_CHECK_PARITY, 0 }, | |
326 | { PORT100_IN_PROT_BITWISE_AC_RECV_MODE, 0 }, | |
327 | { PORT100_IN_PROT_VALID_BIT_NUMBER, 8 }, | |
328 | { PORT100_IN_PROT_CRYPTO1, 0 }, | |
329 | { PORT100_IN_PROT_ADD_SOF, 0 }, | |
330 | { PORT100_IN_PROT_CHECK_SOF, 0 }, | |
331 | { PORT100_IN_PROT_ADD_EOF, 0 }, | |
332 | { PORT100_IN_PROT_CHECK_EOF, 0 }, | |
333 | { PORT100_IN_PROT_DEAF_TIME, 4 }, | |
334 | { PORT100_IN_PROT_CRM, 0 }, | |
335 | { PORT100_IN_PROT_CRM_MIN_LEN, 0 }, | |
336 | { PORT100_IN_PROT_T1_TAG_FRAME, 0 }, | |
337 | { PORT100_IN_PROT_RFCA, 0 }, | |
338 | { PORT100_IN_PROT_GUARD_TIME_AT_INITIATOR, 6 }, | |
339 | { PORT100_IN_PROT_END, 0 }, | |
340 | }, | |
341 | [NFC_DIGITAL_FRAMING_NFCF_T3T] = { | |
342 | /* nfc_digital_framing_nfcf */ | |
343 | { PORT100_IN_PROT_END, 0 }, | |
344 | }, | |
345 | [NFC_DIGITAL_FRAMING_NFCF_NFC_DEP] = { | |
346 | /* nfc_digital_framing_nfcf */ | |
a81ba50a TE |
347 | { PORT100_IN_PROT_INITIAL_GUARD_TIME, 18 }, |
348 | { PORT100_IN_PROT_ADD_CRC, 1 }, | |
349 | { PORT100_IN_PROT_CHECK_CRC, 1 }, | |
350 | { PORT100_IN_PROT_MULTI_CARD, 0 }, | |
351 | { PORT100_IN_PROT_ADD_PARITY, 0 }, | |
352 | { PORT100_IN_PROT_CHECK_PARITY, 0 }, | |
353 | { PORT100_IN_PROT_BITWISE_AC_RECV_MODE, 0 }, | |
354 | { PORT100_IN_PROT_VALID_BIT_NUMBER, 8 }, | |
355 | { PORT100_IN_PROT_CRYPTO1, 0 }, | |
356 | { PORT100_IN_PROT_ADD_SOF, 0 }, | |
357 | { PORT100_IN_PROT_CHECK_SOF, 0 }, | |
358 | { PORT100_IN_PROT_ADD_EOF, 0 }, | |
359 | { PORT100_IN_PROT_CHECK_EOF, 0 }, | |
360 | { PORT100_IN_PROT_DEAF_TIME, 4 }, | |
361 | { PORT100_IN_PROT_CRM, 0 }, | |
362 | { PORT100_IN_PROT_CRM_MIN_LEN, 0 }, | |
363 | { PORT100_IN_PROT_T1_TAG_FRAME, 0 }, | |
364 | { PORT100_IN_PROT_RFCA, 0 }, | |
365 | { PORT100_IN_PROT_GUARD_TIME_AT_INITIATOR, 6 }, | |
366 | { PORT100_IN_PROT_END, 0 }, | |
9f7b57f2 TE |
367 | }, |
368 | [NFC_DIGITAL_FRAMING_NFC_DEP_ACTIVATED] = { | |
369 | { PORT100_IN_PROT_END, 0 }, | |
370 | }, | |
09592ccf TE |
371 | [NFC_DIGITAL_FRAMING_NFCB] = { |
372 | { PORT100_IN_PROT_INITIAL_GUARD_TIME, 20 }, | |
373 | { PORT100_IN_PROT_ADD_CRC, 1 }, | |
374 | { PORT100_IN_PROT_CHECK_CRC, 1 }, | |
375 | { PORT100_IN_PROT_MULTI_CARD, 0 }, | |
376 | { PORT100_IN_PROT_ADD_PARITY, 0 }, | |
377 | { PORT100_IN_PROT_CHECK_PARITY, 0 }, | |
378 | { PORT100_IN_PROT_BITWISE_AC_RECV_MODE, 0 }, | |
379 | { PORT100_IN_PROT_VALID_BIT_NUMBER, 8 }, | |
380 | { PORT100_IN_PROT_CRYPTO1, 0 }, | |
381 | { PORT100_IN_PROT_ADD_SOF, 1 }, | |
382 | { PORT100_IN_PROT_CHECK_SOF, 1 }, | |
383 | { PORT100_IN_PROT_ADD_EOF, 1 }, | |
384 | { PORT100_IN_PROT_CHECK_EOF, 1 }, | |
385 | { PORT100_IN_PROT_DEAF_TIME, 4 }, | |
386 | { PORT100_IN_PROT_CRM, 0 }, | |
387 | { PORT100_IN_PROT_CRM_MIN_LEN, 0 }, | |
388 | { PORT100_IN_PROT_T1_TAG_FRAME, 0 }, | |
389 | { PORT100_IN_PROT_RFCA, 0 }, | |
390 | { PORT100_IN_PROT_GUARD_TIME_AT_INITIATOR, 6 }, | |
391 | { PORT100_IN_PROT_END, 0 }, | |
392 | }, | |
393 | [NFC_DIGITAL_FRAMING_NFCB_T4T] = { | |
394 | /* nfc_digital_framing_nfcb */ | |
395 | { PORT100_IN_PROT_END, 0 }, | |
396 | }, | |
d3815ea9 TE |
397 | /* Ensures the array has NFC_DIGITAL_FRAMING_LAST elements */ |
398 | [NFC_DIGITAL_FRAMING_LAST] = { | |
399 | { PORT100_IN_PROT_END, 0 }, | |
400 | }, | |
9f7b57f2 TE |
401 | }; |
402 | ||
7227c021 TE |
403 | static struct port100_protocol |
404 | tg_protocols[][PORT100_TG_MAX_NUM_PROTOCOLS + 1] = { | |
405 | [NFC_DIGITAL_FRAMING_NFCA_SHORT] = { | |
406 | { PORT100_TG_PROT_END, 0 }, | |
407 | }, | |
408 | [NFC_DIGITAL_FRAMING_NFCA_STANDARD] = { | |
409 | { PORT100_TG_PROT_END, 0 }, | |
410 | }, | |
411 | [NFC_DIGITAL_FRAMING_NFCA_STANDARD_WITH_CRC_A] = { | |
412 | { PORT100_TG_PROT_END, 0 }, | |
413 | }, | |
414 | [NFC_DIGITAL_FRAMING_NFCA_T1T] = { | |
415 | { PORT100_TG_PROT_END, 0 }, | |
416 | }, | |
417 | [NFC_DIGITAL_FRAMING_NFCA_T2T] = { | |
418 | { PORT100_TG_PROT_END, 0 }, | |
419 | }, | |
420 | [NFC_DIGITAL_FRAMING_NFCA_NFC_DEP] = { | |
421 | { PORT100_TG_PROT_TU, 1 }, | |
422 | { PORT100_TG_PROT_RF_OFF, 0 }, | |
423 | { PORT100_TG_PROT_CRM, 7 }, | |
424 | { PORT100_TG_PROT_END, 0 }, | |
425 | }, | |
426 | [NFC_DIGITAL_FRAMING_NFCF] = { | |
427 | { PORT100_TG_PROT_END, 0 }, | |
428 | }, | |
429 | [NFC_DIGITAL_FRAMING_NFCF_T3T] = { | |
430 | { PORT100_TG_PROT_END, 0 }, | |
431 | }, | |
432 | [NFC_DIGITAL_FRAMING_NFCF_NFC_DEP] = { | |
433 | { PORT100_TG_PROT_TU, 1 }, | |
434 | { PORT100_TG_PROT_RF_OFF, 0 }, | |
435 | { PORT100_TG_PROT_CRM, 7 }, | |
436 | { PORT100_TG_PROT_END, 0 }, | |
437 | }, | |
438 | [NFC_DIGITAL_FRAMING_NFC_DEP_ACTIVATED] = { | |
439 | { PORT100_TG_PROT_RF_OFF, 1 }, | |
440 | { PORT100_TG_PROT_END, 0 }, | |
441 | }, | |
d3815ea9 TE |
442 | /* Ensures the array has NFC_DIGITAL_FRAMING_LAST elements */ |
443 | [NFC_DIGITAL_FRAMING_LAST] = { | |
444 | { PORT100_TG_PROT_END, 0 }, | |
445 | }, | |
7227c021 TE |
446 | }; |
447 | ||
562d4d59 TE |
448 | struct port100 { |
449 | struct nfc_digital_dev *nfc_digital_dev; | |
450 | ||
451 | int skb_headroom; | |
452 | int skb_tailroom; | |
453 | ||
454 | struct usb_device *udev; | |
455 | struct usb_interface *interface; | |
0347a6ab TE |
456 | |
457 | struct urb *out_urb; | |
458 | struct urb *in_urb; | |
459 | ||
b74584c1 TE |
460 | /* This mutex protects the out_urb and avoids to submit a new command |
461 | * through port100_send_frame_async() while the previous one is being | |
462 | * canceled through port100_abort_cmd(). | |
463 | */ | |
464 | struct mutex out_urb_lock; | |
465 | ||
0347a6ab TE |
466 | struct work_struct cmd_complete_work; |
467 | ||
468 | u8 cmd_type; | |
469 | ||
470 | /* The digital stack serializes commands to be sent. There is no need | |
471 | * for any queuing/locking mechanism at driver level. | |
472 | */ | |
473 | struct port100_cmd *cmd; | |
b74584c1 TE |
474 | |
475 | bool cmd_cancel; | |
a52bd7d2 | 476 | struct completion cmd_cancel_done; |
0347a6ab TE |
477 | }; |
478 | ||
479 | struct port100_cmd { | |
480 | u8 code; | |
481 | int status; | |
482 | struct sk_buff *req; | |
483 | struct sk_buff *resp; | |
484 | int resp_len; | |
485 | port100_send_async_complete_t complete_cb; | |
486 | void *complete_cb_context; | |
487 | }; | |
488 | ||
489 | struct port100_frame { | |
490 | u8 preamble; | |
491 | __be16 start_frame; | |
492 | __be16 extended_frame; | |
493 | __le16 datalen; | |
494 | u8 datalen_checksum; | |
495 | u8 data[]; | |
496 | } __packed; | |
497 | ||
498 | struct port100_ack_frame { | |
499 | u8 preamble; | |
500 | __be16 start_frame; | |
501 | __be16 ack_frame; | |
502 | u8 postambule; | |
503 | } __packed; | |
504 | ||
505 | struct port100_cb_arg { | |
506 | nfc_digital_cmd_complete_t complete_cb; | |
507 | void *complete_arg; | |
508 | u8 mdaa; | |
562d4d59 TE |
509 | }; |
510 | ||
0347a6ab TE |
511 | struct port100_tg_comm_rf_cmd { |
512 | __le16 guard_time; | |
513 | __le16 send_timeout; | |
514 | u8 mdaa; | |
515 | u8 nfca_param[6]; | |
516 | u8 nfcf_param[18]; | |
517 | u8 mf_halted; | |
518 | u8 arae_flag; | |
519 | __le16 recv_timeout; | |
520 | u8 data[]; | |
521 | } __packed; | |
522 | ||
7227c021 TE |
523 | struct port100_tg_comm_rf_res { |
524 | u8 comm_type; | |
525 | u8 ar_status; | |
526 | u8 target_activated; | |
527 | __le32 status; | |
528 | u8 data[]; | |
529 | } __packed; | |
530 | ||
0347a6ab TE |
531 | /* The rule: value + checksum = 0 */ |
532 | static inline u8 port100_checksum(u16 value) | |
533 | { | |
534 | return ~(((u8 *)&value)[0] + ((u8 *)&value)[1]) + 1; | |
535 | } | |
536 | ||
537 | /* The rule: sum(data elements) + checksum = 0 */ | |
538 | static u8 port100_data_checksum(u8 *data, int datalen) | |
539 | { | |
540 | u8 sum = 0; | |
541 | int i; | |
542 | ||
543 | for (i = 0; i < datalen; i++) | |
544 | sum += data[i]; | |
545 | ||
546 | return port100_checksum(sum); | |
547 | } | |
548 | ||
549 | static void port100_tx_frame_init(void *_frame, u8 cmd_code) | |
550 | { | |
551 | struct port100_frame *frame = _frame; | |
552 | ||
553 | frame->preamble = 0; | |
554 | frame->start_frame = cpu_to_be16(PORT100_FRAME_SOF); | |
555 | frame->extended_frame = cpu_to_be16(PORT100_FRAME_EXT); | |
556 | PORT100_FRAME_DIRECTION(frame) = PORT100_FRAME_DIR_OUT; | |
557 | PORT100_FRAME_CMD(frame) = cmd_code; | |
558 | frame->datalen = cpu_to_le16(2); | |
559 | } | |
560 | ||
561 | static void port100_tx_frame_finish(void *_frame) | |
562 | { | |
563 | struct port100_frame *frame = _frame; | |
564 | ||
565 | frame->datalen_checksum = port100_checksum(le16_to_cpu(frame->datalen)); | |
566 | ||
567 | PORT100_FRAME_CHECKSUM(frame) = | |
568 | port100_data_checksum(frame->data, le16_to_cpu(frame->datalen)); | |
569 | ||
570 | PORT100_FRAME_POSTAMBLE(frame) = 0; | |
571 | } | |
572 | ||
573 | static void port100_tx_update_payload_len(void *_frame, int len) | |
574 | { | |
575 | struct port100_frame *frame = _frame; | |
576 | ||
577 | frame->datalen = cpu_to_le16(le16_to_cpu(frame->datalen) + len); | |
578 | } | |
579 | ||
580 | static bool port100_rx_frame_is_valid(void *_frame) | |
581 | { | |
582 | u8 checksum; | |
583 | struct port100_frame *frame = _frame; | |
584 | ||
585 | if (frame->start_frame != cpu_to_be16(PORT100_FRAME_SOF) || | |
586 | frame->extended_frame != cpu_to_be16(PORT100_FRAME_EXT)) | |
587 | return false; | |
588 | ||
589 | checksum = port100_checksum(le16_to_cpu(frame->datalen)); | |
590 | if (checksum != frame->datalen_checksum) | |
591 | return false; | |
592 | ||
593 | checksum = port100_data_checksum(frame->data, | |
594 | le16_to_cpu(frame->datalen)); | |
595 | if (checksum != PORT100_FRAME_CHECKSUM(frame)) | |
596 | return false; | |
597 | ||
598 | return true; | |
599 | } | |
600 | ||
601 | static bool port100_rx_frame_is_ack(struct port100_ack_frame *frame) | |
602 | { | |
603 | return (frame->start_frame == cpu_to_be16(PORT100_FRAME_SOF) && | |
604 | frame->ack_frame == cpu_to_be16(PORT100_FRAME_ACK)); | |
605 | } | |
606 | ||
607 | static inline int port100_rx_frame_size(void *frame) | |
608 | { | |
609 | struct port100_frame *f = frame; | |
610 | ||
611 | return sizeof(struct port100_frame) + le16_to_cpu(f->datalen) + | |
612 | PORT100_FRAME_TAIL_LEN; | |
613 | } | |
614 | ||
615 | static bool port100_rx_frame_is_cmd_response(struct port100 *dev, void *frame) | |
616 | { | |
617 | struct port100_frame *f = frame; | |
618 | ||
619 | return (PORT100_FRAME_CMD(f) == PORT100_CMD_RESPONSE(dev->cmd->code)); | |
620 | } | |
621 | ||
622 | static void port100_recv_response(struct urb *urb) | |
623 | { | |
624 | struct port100 *dev = urb->context; | |
625 | struct port100_cmd *cmd = dev->cmd; | |
626 | u8 *in_frame; | |
627 | ||
628 | cmd->status = urb->status; | |
629 | ||
630 | switch (urb->status) { | |
631 | case 0: | |
632 | break; /* success */ | |
633 | case -ECONNRESET: | |
634 | case -ENOENT: | |
635 | nfc_err(&dev->interface->dev, | |
3590ebc0 | 636 | "The urb has been canceled (status %d)\n", urb->status); |
0347a6ab TE |
637 | goto sched_wq; |
638 | case -ESHUTDOWN: | |
639 | default: | |
3590ebc0 | 640 | nfc_err(&dev->interface->dev, "Urb failure (status %d)\n", |
0347a6ab TE |
641 | urb->status); |
642 | goto sched_wq; | |
643 | } | |
644 | ||
645 | in_frame = dev->in_urb->transfer_buffer; | |
646 | ||
647 | if (!port100_rx_frame_is_valid(in_frame)) { | |
3590ebc0 | 648 | nfc_err(&dev->interface->dev, "Received an invalid frame\n"); |
0347a6ab TE |
649 | cmd->status = -EIO; |
650 | goto sched_wq; | |
651 | } | |
652 | ||
653 | print_hex_dump_debug("PORT100 RX: ", DUMP_PREFIX_NONE, 16, 1, in_frame, | |
654 | port100_rx_frame_size(in_frame), false); | |
655 | ||
656 | if (!port100_rx_frame_is_cmd_response(dev, in_frame)) { | |
657 | nfc_err(&dev->interface->dev, | |
3590ebc0 | 658 | "It's not the response to the last command\n"); |
0347a6ab TE |
659 | cmd->status = -EIO; |
660 | goto sched_wq; | |
661 | } | |
662 | ||
663 | sched_wq: | |
664 | schedule_work(&dev->cmd_complete_work); | |
665 | } | |
666 | ||
667 | static int port100_submit_urb_for_response(struct port100 *dev, gfp_t flags) | |
668 | { | |
669 | dev->in_urb->complete = port100_recv_response; | |
670 | ||
671 | return usb_submit_urb(dev->in_urb, flags); | |
672 | } | |
673 | ||
674 | static void port100_recv_ack(struct urb *urb) | |
675 | { | |
676 | struct port100 *dev = urb->context; | |
677 | struct port100_cmd *cmd = dev->cmd; | |
678 | struct port100_ack_frame *in_frame; | |
679 | int rc; | |
680 | ||
681 | cmd->status = urb->status; | |
682 | ||
683 | switch (urb->status) { | |
684 | case 0: | |
685 | break; /* success */ | |
686 | case -ECONNRESET: | |
687 | case -ENOENT: | |
688 | nfc_err(&dev->interface->dev, | |
3590ebc0 | 689 | "The urb has been stopped (status %d)\n", urb->status); |
0347a6ab TE |
690 | goto sched_wq; |
691 | case -ESHUTDOWN: | |
692 | default: | |
3590ebc0 | 693 | nfc_err(&dev->interface->dev, "Urb failure (status %d)\n", |
0347a6ab TE |
694 | urb->status); |
695 | goto sched_wq; | |
696 | } | |
697 | ||
698 | in_frame = dev->in_urb->transfer_buffer; | |
699 | ||
700 | if (!port100_rx_frame_is_ack(in_frame)) { | |
3590ebc0 | 701 | nfc_err(&dev->interface->dev, "Received an invalid ack\n"); |
0347a6ab TE |
702 | cmd->status = -EIO; |
703 | goto sched_wq; | |
704 | } | |
705 | ||
706 | rc = port100_submit_urb_for_response(dev, GFP_ATOMIC); | |
707 | if (rc) { | |
708 | nfc_err(&dev->interface->dev, | |
3590ebc0 | 709 | "usb_submit_urb failed with result %d\n", rc); |
0347a6ab TE |
710 | cmd->status = rc; |
711 | goto sched_wq; | |
712 | } | |
713 | ||
714 | return; | |
715 | ||
716 | sched_wq: | |
717 | schedule_work(&dev->cmd_complete_work); | |
718 | } | |
719 | ||
720 | static int port100_submit_urb_for_ack(struct port100 *dev, gfp_t flags) | |
721 | { | |
722 | dev->in_urb->complete = port100_recv_ack; | |
723 | ||
724 | return usb_submit_urb(dev->in_urb, flags); | |
725 | } | |
726 | ||
727 | static int port100_send_ack(struct port100 *dev) | |
728 | { | |
24971281 | 729 | int rc = 0; |
0347a6ab | 730 | |
b74584c1 TE |
731 | mutex_lock(&dev->out_urb_lock); |
732 | ||
24971281 OH |
733 | /* |
734 | * If prior cancel is in-flight (dev->cmd_cancel == true), we | |
735 | * can skip to send cancel. Then this will wait the prior | |
736 | * cancel, or merged into the next cancel rarely if next | |
737 | * cancel was started before waiting done. In any case, this | |
738 | * will be waked up soon or later. | |
739 | */ | |
740 | if (!dev->cmd_cancel) { | |
741 | reinit_completion(&dev->cmd_cancel_done); | |
a52bd7d2 | 742 | |
24971281 | 743 | usb_kill_urb(dev->out_urb); |
b74584c1 | 744 | |
24971281 OH |
745 | dev->out_urb->transfer_buffer = ack_frame; |
746 | dev->out_urb->transfer_buffer_length = sizeof(ack_frame); | |
747 | rc = usb_submit_urb(dev->out_urb, GFP_KERNEL); | |
0347a6ab | 748 | |
24971281 OH |
749 | /* |
750 | * Set the cmd_cancel flag only if the URB has been | |
751 | * successfully submitted. It will be reset by the out | |
752 | * URB completion callback port100_send_complete(). | |
753 | */ | |
754 | dev->cmd_cancel = !rc; | |
755 | } | |
b74584c1 TE |
756 | |
757 | mutex_unlock(&dev->out_urb_lock); | |
758 | ||
a52bd7d2 TE |
759 | if (!rc) |
760 | wait_for_completion(&dev->cmd_cancel_done); | |
761 | ||
0347a6ab TE |
762 | return rc; |
763 | } | |
764 | ||
765 | static int port100_send_frame_async(struct port100 *dev, struct sk_buff *out, | |
766 | struct sk_buff *in, int in_len) | |
767 | { | |
768 | int rc; | |
769 | ||
b74584c1 TE |
770 | mutex_lock(&dev->out_urb_lock); |
771 | ||
772 | /* A command cancel frame as been sent through dev->out_urb. Don't try | |
773 | * to submit a new one. | |
774 | */ | |
775 | if (dev->cmd_cancel) { | |
776 | rc = -EAGAIN; | |
777 | goto exit; | |
778 | } | |
779 | ||
0347a6ab TE |
780 | dev->out_urb->transfer_buffer = out->data; |
781 | dev->out_urb->transfer_buffer_length = out->len; | |
782 | ||
783 | dev->in_urb->transfer_buffer = in->data; | |
784 | dev->in_urb->transfer_buffer_length = in_len; | |
785 | ||
786 | print_hex_dump_debug("PORT100 TX: ", DUMP_PREFIX_NONE, 16, 1, | |
787 | out->data, out->len, false); | |
788 | ||
789 | rc = usb_submit_urb(dev->out_urb, GFP_KERNEL); | |
790 | if (rc) | |
b74584c1 | 791 | goto exit; |
0347a6ab TE |
792 | |
793 | rc = port100_submit_urb_for_ack(dev, GFP_KERNEL); | |
794 | if (rc) | |
b74584c1 | 795 | usb_unlink_urb(dev->out_urb); |
0347a6ab | 796 | |
b74584c1 TE |
797 | exit: |
798 | mutex_unlock(&dev->out_urb_lock); | |
0347a6ab | 799 | |
0347a6ab TE |
800 | return rc; |
801 | } | |
802 | ||
803 | static void port100_build_cmd_frame(struct port100 *dev, u8 cmd_code, | |
804 | struct sk_buff *skb) | |
805 | { | |
806 | /* payload is already there, just update datalen */ | |
807 | int payload_len = skb->len; | |
808 | ||
809 | skb_push(skb, PORT100_FRAME_HEADER_LEN); | |
810 | skb_put(skb, PORT100_FRAME_TAIL_LEN); | |
811 | ||
812 | port100_tx_frame_init(skb->data, cmd_code); | |
813 | port100_tx_update_payload_len(skb->data, payload_len); | |
814 | port100_tx_frame_finish(skb->data); | |
815 | } | |
816 | ||
817 | static void port100_send_async_complete(struct port100 *dev) | |
818 | { | |
819 | struct port100_cmd *cmd = dev->cmd; | |
820 | int status = cmd->status; | |
821 | ||
822 | struct sk_buff *req = cmd->req; | |
823 | struct sk_buff *resp = cmd->resp; | |
824 | ||
825 | dev_kfree_skb(req); | |
826 | ||
827 | dev->cmd = NULL; | |
828 | ||
829 | if (status < 0) { | |
830 | cmd->complete_cb(dev, cmd->complete_cb_context, | |
831 | ERR_PTR(status)); | |
832 | dev_kfree_skb(resp); | |
833 | goto done; | |
834 | } | |
835 | ||
836 | skb_put(resp, port100_rx_frame_size(resp->data)); | |
837 | skb_pull(resp, PORT100_FRAME_HEADER_LEN); | |
838 | skb_trim(resp, resp->len - PORT100_FRAME_TAIL_LEN); | |
839 | ||
840 | cmd->complete_cb(dev, cmd->complete_cb_context, resp); | |
841 | ||
842 | done: | |
843 | kfree(cmd); | |
844 | } | |
845 | ||
846 | static int port100_send_cmd_async(struct port100 *dev, u8 cmd_code, | |
847 | struct sk_buff *req, | |
848 | port100_send_async_complete_t complete_cb, | |
849 | void *complete_cb_context) | |
850 | { | |
851 | struct port100_cmd *cmd; | |
852 | struct sk_buff *resp; | |
853 | int rc; | |
854 | int resp_len = PORT100_FRAME_HEADER_LEN + | |
855 | PORT100_FRAME_MAX_PAYLOAD_LEN + | |
856 | PORT100_FRAME_TAIL_LEN; | |
857 | ||
e3e02588 TE |
858 | if (dev->cmd) { |
859 | nfc_err(&dev->interface->dev, | |
860 | "A command is still in process\n"); | |
861 | return -EBUSY; | |
862 | } | |
863 | ||
0347a6ab TE |
864 | resp = alloc_skb(resp_len, GFP_KERNEL); |
865 | if (!resp) | |
866 | return -ENOMEM; | |
867 | ||
868 | cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); | |
869 | if (!cmd) { | |
870 | dev_kfree_skb(resp); | |
871 | return -ENOMEM; | |
872 | } | |
873 | ||
874 | cmd->code = cmd_code; | |
875 | cmd->req = req; | |
876 | cmd->resp = resp; | |
877 | cmd->resp_len = resp_len; | |
878 | cmd->complete_cb = complete_cb; | |
879 | cmd->complete_cb_context = complete_cb_context; | |
880 | ||
881 | port100_build_cmd_frame(dev, cmd_code, req); | |
882 | ||
883 | dev->cmd = cmd; | |
884 | ||
885 | rc = port100_send_frame_async(dev, req, resp, resp_len); | |
886 | if (rc) { | |
887 | kfree(cmd); | |
888 | dev_kfree_skb(resp); | |
889 | dev->cmd = NULL; | |
890 | } | |
891 | ||
892 | return rc; | |
893 | } | |
894 | ||
895 | struct port100_sync_cmd_response { | |
896 | struct sk_buff *resp; | |
897 | struct completion done; | |
898 | }; | |
899 | ||
900 | static void port100_wq_cmd_complete(struct work_struct *work) | |
901 | { | |
902 | struct port100 *dev = container_of(work, struct port100, | |
903 | cmd_complete_work); | |
904 | ||
905 | port100_send_async_complete(dev); | |
906 | } | |
907 | ||
908 | static void port100_send_sync_complete(struct port100 *dev, void *_arg, | |
909 | struct sk_buff *resp) | |
910 | { | |
911 | struct port100_sync_cmd_response *arg = _arg; | |
912 | ||
913 | arg->resp = resp; | |
914 | complete(&arg->done); | |
915 | } | |
916 | ||
917 | static struct sk_buff *port100_send_cmd_sync(struct port100 *dev, u8 cmd_code, | |
918 | struct sk_buff *req) | |
919 | { | |
920 | int rc; | |
921 | struct port100_sync_cmd_response arg; | |
922 | ||
923 | init_completion(&arg.done); | |
924 | ||
925 | rc = port100_send_cmd_async(dev, cmd_code, req, | |
926 | port100_send_sync_complete, &arg); | |
927 | if (rc) { | |
928 | dev_kfree_skb(req); | |
929 | return ERR_PTR(rc); | |
930 | } | |
931 | ||
932 | wait_for_completion(&arg.done); | |
933 | ||
934 | return arg.resp; | |
935 | } | |
936 | ||
937 | static void port100_send_complete(struct urb *urb) | |
938 | { | |
939 | struct port100 *dev = urb->context; | |
940 | ||
a52bd7d2 | 941 | if (dev->cmd_cancel) { |
24971281 | 942 | complete_all(&dev->cmd_cancel_done); |
a52bd7d2 | 943 | dev->cmd_cancel = false; |
a52bd7d2 | 944 | } |
b74584c1 | 945 | |
0347a6ab TE |
946 | switch (urb->status) { |
947 | case 0: | |
948 | break; /* success */ | |
949 | case -ECONNRESET: | |
950 | case -ENOENT: | |
951 | nfc_err(&dev->interface->dev, | |
3590ebc0 | 952 | "The urb has been stopped (status %d)\n", urb->status); |
0347a6ab TE |
953 | break; |
954 | case -ESHUTDOWN: | |
955 | default: | |
3590ebc0 | 956 | nfc_err(&dev->interface->dev, "Urb failure (status %d)\n", |
0347a6ab TE |
957 | urb->status); |
958 | } | |
959 | } | |
960 | ||
562d4d59 TE |
961 | static void port100_abort_cmd(struct nfc_digital_dev *ddev) |
962 | { | |
0347a6ab TE |
963 | struct port100 *dev = nfc_digital_get_drvdata(ddev); |
964 | ||
965 | /* An ack will cancel the last issued command */ | |
966 | port100_send_ack(dev); | |
967 | ||
968 | /* cancel the urb request */ | |
969 | usb_kill_urb(dev->in_urb); | |
970 | } | |
971 | ||
972 | static struct sk_buff *port100_alloc_skb(struct port100 *dev, unsigned int size) | |
973 | { | |
974 | struct sk_buff *skb; | |
975 | ||
976 | skb = alloc_skb(dev->skb_headroom + dev->skb_tailroom + size, | |
977 | GFP_KERNEL); | |
978 | if (skb) | |
979 | skb_reserve(skb, dev->skb_headroom); | |
980 | ||
981 | return skb; | |
982 | } | |
983 | ||
984 | static int port100_set_command_type(struct port100 *dev, u8 command_type) | |
985 | { | |
986 | struct sk_buff *skb; | |
987 | struct sk_buff *resp; | |
988 | int rc; | |
989 | ||
990 | skb = port100_alloc_skb(dev, 1); | |
991 | if (!skb) | |
992 | return -ENOMEM; | |
993 | ||
634fef61 | 994 | skb_put_u8(skb, command_type); |
0347a6ab TE |
995 | |
996 | resp = port100_send_cmd_sync(dev, PORT100_CMD_SET_COMMAND_TYPE, skb); | |
997 | if (IS_ERR(resp)) | |
998 | return PTR_ERR(resp); | |
999 | ||
1000 | rc = resp->data[0]; | |
1001 | ||
1002 | dev_kfree_skb(resp); | |
1003 | ||
1004 | return rc; | |
1005 | } | |
1006 | ||
1007 | static u64 port100_get_command_type_mask(struct port100 *dev) | |
1008 | { | |
1009 | struct sk_buff *skb; | |
1010 | struct sk_buff *resp; | |
1011 | u64 mask; | |
1012 | ||
1013 | skb = port100_alloc_skb(dev, 0); | |
1014 | if (!skb) | |
1015 | return -ENOMEM; | |
1016 | ||
1017 | resp = port100_send_cmd_sync(dev, PORT100_CMD_GET_COMMAND_TYPE, skb); | |
1018 | if (IS_ERR(resp)) | |
1019 | return PTR_ERR(resp); | |
1020 | ||
1021 | if (resp->len < 8) | |
1022 | mask = 0; | |
1023 | else | |
1024 | mask = be64_to_cpu(*(__be64 *)resp->data); | |
1025 | ||
1026 | dev_kfree_skb(resp); | |
1027 | ||
1028 | return mask; | |
1029 | } | |
1030 | ||
1031 | static u16 port100_get_firmware_version(struct port100 *dev) | |
1032 | { | |
1033 | struct sk_buff *skb; | |
1034 | struct sk_buff *resp; | |
1035 | u16 fw_ver; | |
1036 | ||
1037 | skb = port100_alloc_skb(dev, 0); | |
1038 | if (!skb) | |
1039 | return 0; | |
1040 | ||
1041 | resp = port100_send_cmd_sync(dev, PORT100_CMD_GET_FIRMWARE_VERSION, | |
1042 | skb); | |
1043 | if (IS_ERR(resp)) | |
1044 | return 0; | |
1045 | ||
1046 | fw_ver = le16_to_cpu(*(__le16 *)resp->data); | |
1047 | ||
1048 | dev_kfree_skb(resp); | |
1049 | ||
1050 | return fw_ver; | |
562d4d59 TE |
1051 | } |
1052 | ||
1053 | static int port100_switch_rf(struct nfc_digital_dev *ddev, bool on) | |
1054 | { | |
9f7b57f2 TE |
1055 | struct port100 *dev = nfc_digital_get_drvdata(ddev); |
1056 | struct sk_buff *skb, *resp; | |
1057 | ||
1058 | skb = port100_alloc_skb(dev, 1); | |
1059 | if (!skb) | |
1060 | return -ENOMEM; | |
1061 | ||
634fef61 | 1062 | skb_put_u8(skb, on ? 1 : 0); |
9f7b57f2 | 1063 | |
9f0c4542 TE |
1064 | /* Cancel the last command if the device is being switched off */ |
1065 | if (!on) | |
1066 | port100_abort_cmd(ddev); | |
1067 | ||
9f7b57f2 TE |
1068 | resp = port100_send_cmd_sync(dev, PORT100_CMD_SWITCH_RF, skb); |
1069 | ||
1070 | if (IS_ERR(resp)) | |
1071 | return PTR_ERR(resp); | |
1072 | ||
1073 | dev_kfree_skb(resp); | |
1074 | ||
1075 | return 0; | |
1076 | } | |
1077 | ||
1078 | static int port100_in_set_rf(struct nfc_digital_dev *ddev, u8 rf) | |
1079 | { | |
1080 | struct port100 *dev = nfc_digital_get_drvdata(ddev); | |
1081 | struct sk_buff *skb; | |
1082 | struct sk_buff *resp; | |
1083 | int rc; | |
1084 | ||
1085 | if (rf >= NFC_DIGITAL_RF_TECH_LAST) | |
1086 | return -EINVAL; | |
1087 | ||
1088 | skb = port100_alloc_skb(dev, sizeof(struct port100_in_rf_setting)); | |
1089 | if (!skb) | |
1090 | return -ENOMEM; | |
1091 | ||
59ae1d12 JB |
1092 | skb_put_data(skb, &in_rf_settings[rf], |
1093 | sizeof(struct port100_in_rf_setting)); | |
9f7b57f2 TE |
1094 | |
1095 | resp = port100_send_cmd_sync(dev, PORT100_CMD_IN_SET_RF, skb); | |
1096 | ||
1097 | if (IS_ERR(resp)) | |
1098 | return PTR_ERR(resp); | |
1099 | ||
1100 | rc = resp->data[0]; | |
1101 | ||
1102 | dev_kfree_skb(resp); | |
1103 | ||
1104 | return rc; | |
1105 | } | |
1106 | ||
1107 | static int port100_in_set_framing(struct nfc_digital_dev *ddev, int param) | |
1108 | { | |
1109 | struct port100 *dev = nfc_digital_get_drvdata(ddev); | |
1110 | struct port100_protocol *protocols; | |
1111 | struct sk_buff *skb; | |
1112 | struct sk_buff *resp; | |
1113 | int num_protocols; | |
1114 | size_t size; | |
1115 | int rc; | |
1116 | ||
1117 | if (param >= NFC_DIGITAL_FRAMING_LAST) | |
1118 | return -EINVAL; | |
1119 | ||
1120 | protocols = in_protocols[param]; | |
1121 | ||
1122 | num_protocols = 0; | |
1123 | while (protocols[num_protocols].number != PORT100_IN_PROT_END) | |
1124 | num_protocols++; | |
1125 | ||
1126 | if (!num_protocols) | |
1127 | return 0; | |
1128 | ||
1129 | size = sizeof(struct port100_protocol) * num_protocols; | |
1130 | ||
1131 | skb = port100_alloc_skb(dev, size); | |
1132 | if (!skb) | |
1133 | return -ENOMEM; | |
1134 | ||
59ae1d12 | 1135 | skb_put_data(skb, protocols, size); |
9f7b57f2 TE |
1136 | |
1137 | resp = port100_send_cmd_sync(dev, PORT100_CMD_IN_SET_PROTOCOL, skb); | |
1138 | ||
1139 | if (IS_ERR(resp)) | |
1140 | return PTR_ERR(resp); | |
1141 | ||
1142 | rc = resp->data[0]; | |
1143 | ||
1144 | dev_kfree_skb(resp); | |
1145 | ||
1146 | return rc; | |
562d4d59 TE |
1147 | } |
1148 | ||
1149 | static int port100_in_configure_hw(struct nfc_digital_dev *ddev, int type, | |
1150 | int param) | |
1151 | { | |
9f7b57f2 TE |
1152 | if (type == NFC_DIGITAL_CONFIG_RF_TECH) |
1153 | return port100_in_set_rf(ddev, param); | |
1154 | ||
1155 | if (type == NFC_DIGITAL_CONFIG_FRAMING) | |
1156 | return port100_in_set_framing(ddev, param); | |
1157 | ||
1158 | return -EINVAL; | |
1159 | } | |
1160 | ||
1161 | static void port100_in_comm_rf_complete(struct port100 *dev, void *arg, | |
1162 | struct sk_buff *resp) | |
1163 | { | |
1164 | struct port100_cb_arg *cb_arg = arg; | |
1165 | nfc_digital_cmd_complete_t cb = cb_arg->complete_cb; | |
1166 | u32 status; | |
1167 | int rc; | |
1168 | ||
1169 | if (IS_ERR(resp)) { | |
1170 | rc = PTR_ERR(resp); | |
1171 | goto exit; | |
1172 | } | |
1173 | ||
1174 | if (resp->len < 4) { | |
1175 | nfc_err(&dev->interface->dev, | |
3590ebc0 | 1176 | "Invalid packet length received\n"); |
9f7b57f2 TE |
1177 | rc = -EIO; |
1178 | goto error; | |
1179 | } | |
1180 | ||
1181 | status = le32_to_cpu(*(__le32 *)resp->data); | |
1182 | ||
1183 | skb_pull(resp, sizeof(u32)); | |
1184 | ||
1185 | if (status == PORT100_CMD_STATUS_TIMEOUT) { | |
1186 | rc = -ETIMEDOUT; | |
1187 | goto error; | |
1188 | } | |
1189 | ||
1190 | if (status != PORT100_CMD_STATUS_OK) { | |
1191 | nfc_err(&dev->interface->dev, | |
1192 | "in_comm_rf failed with status 0x%08x\n", status); | |
1193 | rc = -EIO; | |
1194 | goto error; | |
1195 | } | |
1196 | ||
1197 | /* Remove collision bits byte */ | |
1198 | skb_pull(resp, 1); | |
1199 | ||
1200 | goto exit; | |
1201 | ||
1202 | error: | |
1203 | kfree_skb(resp); | |
1204 | resp = ERR_PTR(rc); | |
1205 | ||
1206 | exit: | |
1207 | cb(dev->nfc_digital_dev, cb_arg->complete_arg, resp); | |
1208 | ||
1209 | kfree(cb_arg); | |
562d4d59 TE |
1210 | } |
1211 | ||
1212 | static int port100_in_send_cmd(struct nfc_digital_dev *ddev, | |
1213 | struct sk_buff *skb, u16 _timeout, | |
1214 | nfc_digital_cmd_complete_t cb, void *arg) | |
1215 | { | |
9f7b57f2 TE |
1216 | struct port100 *dev = nfc_digital_get_drvdata(ddev); |
1217 | struct port100_cb_arg *cb_arg; | |
1218 | __le16 timeout; | |
1219 | ||
1220 | cb_arg = kzalloc(sizeof(struct port100_cb_arg), GFP_KERNEL); | |
1221 | if (!cb_arg) | |
1222 | return -ENOMEM; | |
1223 | ||
1224 | cb_arg->complete_cb = cb; | |
1225 | cb_arg->complete_arg = arg; | |
1226 | ||
1227 | timeout = cpu_to_le16(_timeout * 10); | |
1228 | ||
1229 | memcpy(skb_push(skb, sizeof(__le16)), &timeout, sizeof(__le16)); | |
1230 | ||
1231 | return port100_send_cmd_async(dev, PORT100_CMD_IN_COMM_RF, skb, | |
1232 | port100_in_comm_rf_complete, cb_arg); | |
562d4d59 TE |
1233 | } |
1234 | ||
7227c021 TE |
1235 | static int port100_tg_set_rf(struct nfc_digital_dev *ddev, u8 rf) |
1236 | { | |
1237 | struct port100 *dev = nfc_digital_get_drvdata(ddev); | |
1238 | struct sk_buff *skb; | |
1239 | struct sk_buff *resp; | |
1240 | int rc; | |
1241 | ||
1242 | if (rf >= NFC_DIGITAL_RF_TECH_LAST) | |
1243 | return -EINVAL; | |
1244 | ||
1245 | skb = port100_alloc_skb(dev, sizeof(struct port100_tg_rf_setting)); | |
1246 | if (!skb) | |
1247 | return -ENOMEM; | |
1248 | ||
59ae1d12 JB |
1249 | skb_put_data(skb, &tg_rf_settings[rf], |
1250 | sizeof(struct port100_tg_rf_setting)); | |
7227c021 TE |
1251 | |
1252 | resp = port100_send_cmd_sync(dev, PORT100_CMD_TG_SET_RF, skb); | |
1253 | ||
1254 | if (IS_ERR(resp)) | |
1255 | return PTR_ERR(resp); | |
1256 | ||
1257 | rc = resp->data[0]; | |
1258 | ||
1259 | dev_kfree_skb(resp); | |
1260 | ||
1261 | return rc; | |
1262 | } | |
1263 | ||
1264 | static int port100_tg_set_framing(struct nfc_digital_dev *ddev, int param) | |
1265 | { | |
1266 | struct port100 *dev = nfc_digital_get_drvdata(ddev); | |
1267 | struct port100_protocol *protocols; | |
1268 | struct sk_buff *skb; | |
1269 | struct sk_buff *resp; | |
1270 | int rc; | |
1271 | int num_protocols; | |
1272 | size_t size; | |
1273 | ||
1274 | if (param >= NFC_DIGITAL_FRAMING_LAST) | |
1275 | return -EINVAL; | |
1276 | ||
1277 | protocols = tg_protocols[param]; | |
1278 | ||
1279 | num_protocols = 0; | |
1280 | while (protocols[num_protocols].number != PORT100_TG_PROT_END) | |
1281 | num_protocols++; | |
1282 | ||
1283 | if (!num_protocols) | |
1284 | return 0; | |
1285 | ||
1286 | size = sizeof(struct port100_protocol) * num_protocols; | |
1287 | ||
1288 | skb = port100_alloc_skb(dev, size); | |
1289 | if (!skb) | |
1290 | return -ENOMEM; | |
1291 | ||
59ae1d12 | 1292 | skb_put_data(skb, protocols, size); |
7227c021 TE |
1293 | |
1294 | resp = port100_send_cmd_sync(dev, PORT100_CMD_TG_SET_PROTOCOL, skb); | |
1295 | ||
1296 | if (IS_ERR(resp)) | |
1297 | return PTR_ERR(resp); | |
1298 | ||
1299 | rc = resp->data[0]; | |
1300 | ||
1301 | dev_kfree_skb(resp); | |
1302 | ||
1303 | return rc; | |
1304 | } | |
1305 | ||
562d4d59 TE |
1306 | static int port100_tg_configure_hw(struct nfc_digital_dev *ddev, int type, |
1307 | int param) | |
1308 | { | |
7227c021 TE |
1309 | if (type == NFC_DIGITAL_CONFIG_RF_TECH) |
1310 | return port100_tg_set_rf(ddev, param); | |
1311 | ||
1312 | if (type == NFC_DIGITAL_CONFIG_FRAMING) | |
1313 | return port100_tg_set_framing(ddev, param); | |
1314 | ||
1315 | return -EINVAL; | |
1316 | } | |
1317 | ||
1318 | static bool port100_tg_target_activated(struct port100 *dev, u8 tgt_activated) | |
1319 | { | |
1320 | u8 mask; | |
1321 | ||
1322 | switch (dev->cmd_type) { | |
1323 | case PORT100_CMD_TYPE_0: | |
1324 | mask = PORT100_MDAA_TGT_HAS_BEEN_ACTIVATED_MASK; | |
1325 | break; | |
1326 | case PORT100_CMD_TYPE_1: | |
1327 | mask = PORT100_MDAA_TGT_HAS_BEEN_ACTIVATED_MASK | | |
1328 | PORT100_MDAA_TGT_WAS_ACTIVATED_MASK; | |
1329 | break; | |
1330 | default: | |
3590ebc0 | 1331 | nfc_err(&dev->interface->dev, "Unknown command type\n"); |
7227c021 TE |
1332 | return false; |
1333 | } | |
1334 | ||
1335 | return ((tgt_activated & mask) == mask); | |
1336 | } | |
1337 | ||
1338 | static void port100_tg_comm_rf_complete(struct port100 *dev, void *arg, | |
1339 | struct sk_buff *resp) | |
1340 | { | |
1341 | u32 status; | |
1342 | struct port100_cb_arg *cb_arg = arg; | |
1343 | nfc_digital_cmd_complete_t cb = cb_arg->complete_cb; | |
1344 | struct port100_tg_comm_rf_res *hdr; | |
1345 | ||
1346 | if (IS_ERR(resp)) | |
1347 | goto exit; | |
1348 | ||
1349 | hdr = (struct port100_tg_comm_rf_res *)resp->data; | |
1350 | ||
1351 | status = le32_to_cpu(hdr->status); | |
1352 | ||
1353 | if (cb_arg->mdaa && | |
1354 | !port100_tg_target_activated(dev, hdr->target_activated)) { | |
1355 | kfree_skb(resp); | |
1356 | resp = ERR_PTR(-ETIMEDOUT); | |
1357 | ||
1358 | goto exit; | |
1359 | } | |
1360 | ||
1361 | skb_pull(resp, sizeof(struct port100_tg_comm_rf_res)); | |
1362 | ||
1363 | if (status != PORT100_CMD_STATUS_OK) { | |
1364 | kfree_skb(resp); | |
1365 | ||
1366 | if (status == PORT100_CMD_STATUS_TIMEOUT) | |
1367 | resp = ERR_PTR(-ETIMEDOUT); | |
1368 | else | |
1369 | resp = ERR_PTR(-EIO); | |
1370 | } | |
1371 | ||
1372 | exit: | |
1373 | cb(dev->nfc_digital_dev, cb_arg->complete_arg, resp); | |
1374 | ||
1375 | kfree(cb_arg); | |
562d4d59 TE |
1376 | } |
1377 | ||
1378 | static int port100_tg_send_cmd(struct nfc_digital_dev *ddev, | |
1379 | struct sk_buff *skb, u16 timeout, | |
1380 | nfc_digital_cmd_complete_t cb, void *arg) | |
1381 | { | |
7227c021 TE |
1382 | struct port100 *dev = nfc_digital_get_drvdata(ddev); |
1383 | struct port100_tg_comm_rf_cmd *hdr; | |
1384 | struct port100_cb_arg *cb_arg; | |
1385 | ||
1386 | cb_arg = kzalloc(sizeof(struct port100_cb_arg), GFP_KERNEL); | |
1387 | if (!cb_arg) | |
1388 | return -ENOMEM; | |
1389 | ||
1390 | cb_arg->complete_cb = cb; | |
1391 | cb_arg->complete_arg = arg; | |
1392 | ||
1393 | skb_push(skb, sizeof(struct port100_tg_comm_rf_cmd)); | |
1394 | ||
1395 | hdr = (struct port100_tg_comm_rf_cmd *)skb->data; | |
1396 | ||
1397 | memset(hdr, 0, sizeof(struct port100_tg_comm_rf_cmd)); | |
1398 | hdr->guard_time = cpu_to_le16(500); | |
1399 | hdr->send_timeout = cpu_to_le16(0xFFFF); | |
1400 | hdr->recv_timeout = cpu_to_le16(timeout); | |
1401 | ||
1402 | return port100_send_cmd_async(dev, PORT100_CMD_TG_COMM_RF, skb, | |
1403 | port100_tg_comm_rf_complete, cb_arg); | |
562d4d59 TE |
1404 | } |
1405 | ||
1406 | static int port100_listen_mdaa(struct nfc_digital_dev *ddev, | |
1407 | struct digital_tg_mdaa_params *params, | |
1408 | u16 timeout, | |
1409 | nfc_digital_cmd_complete_t cb, void *arg) | |
1410 | { | |
7227c021 TE |
1411 | struct port100 *dev = nfc_digital_get_drvdata(ddev); |
1412 | struct port100_tg_comm_rf_cmd *hdr; | |
1413 | struct port100_cb_arg *cb_arg; | |
1414 | struct sk_buff *skb; | |
1415 | int rc; | |
1416 | ||
1417 | rc = port100_tg_configure_hw(ddev, NFC_DIGITAL_CONFIG_RF_TECH, | |
1418 | NFC_DIGITAL_RF_TECH_106A); | |
1419 | if (rc) | |
1420 | return rc; | |
1421 | ||
1422 | rc = port100_tg_configure_hw(ddev, NFC_DIGITAL_CONFIG_FRAMING, | |
1423 | NFC_DIGITAL_FRAMING_NFCA_NFC_DEP); | |
1424 | if (rc) | |
1425 | return rc; | |
1426 | ||
1427 | cb_arg = kzalloc(sizeof(struct port100_cb_arg), GFP_KERNEL); | |
1428 | if (!cb_arg) | |
1429 | return -ENOMEM; | |
1430 | ||
1431 | cb_arg->complete_cb = cb; | |
1432 | cb_arg->complete_arg = arg; | |
1433 | cb_arg->mdaa = 1; | |
1434 | ||
1435 | skb = port100_alloc_skb(dev, 0); | |
1436 | if (!skb) { | |
1437 | kfree(cb_arg); | |
1438 | return -ENOMEM; | |
1439 | } | |
1440 | ||
1441 | skb_push(skb, sizeof(struct port100_tg_comm_rf_cmd)); | |
1442 | hdr = (struct port100_tg_comm_rf_cmd *)skb->data; | |
1443 | ||
1444 | memset(hdr, 0, sizeof(struct port100_tg_comm_rf_cmd)); | |
1445 | ||
1446 | hdr->guard_time = 0; | |
1447 | hdr->send_timeout = cpu_to_le16(0xFFFF); | |
1448 | hdr->mdaa = 1; | |
1449 | hdr->nfca_param[0] = (params->sens_res >> 8) & 0xFF; | |
1450 | hdr->nfca_param[1] = params->sens_res & 0xFF; | |
1451 | memcpy(hdr->nfca_param + 2, params->nfcid1, 3); | |
1452 | hdr->nfca_param[5] = params->sel_res; | |
1453 | memcpy(hdr->nfcf_param, params->nfcid2, 8); | |
1454 | hdr->nfcf_param[16] = (params->sc >> 8) & 0xFF; | |
1455 | hdr->nfcf_param[17] = params->sc & 0xFF; | |
1456 | hdr->recv_timeout = cpu_to_le16(timeout); | |
1457 | ||
1458 | return port100_send_cmd_async(dev, PORT100_CMD_TG_COMM_RF, skb, | |
1459 | port100_tg_comm_rf_complete, cb_arg); | |
562d4d59 TE |
1460 | } |
1461 | ||
1462 | static int port100_listen(struct nfc_digital_dev *ddev, u16 timeout, | |
1463 | nfc_digital_cmd_complete_t cb, void *arg) | |
1464 | { | |
7227c021 TE |
1465 | struct port100 *dev = nfc_digital_get_drvdata(ddev); |
1466 | struct sk_buff *skb; | |
1467 | ||
1468 | skb = port100_alloc_skb(dev, 0); | |
1469 | if (!skb) | |
1470 | return -ENOMEM; | |
1471 | ||
1472 | return port100_tg_send_cmd(ddev, skb, timeout, cb, arg); | |
562d4d59 TE |
1473 | } |
1474 | ||
1475 | static struct nfc_digital_ops port100_digital_ops = { | |
1476 | .in_configure_hw = port100_in_configure_hw, | |
1477 | .in_send_cmd = port100_in_send_cmd, | |
1478 | ||
1479 | .tg_listen_mdaa = port100_listen_mdaa, | |
1480 | .tg_listen = port100_listen, | |
1481 | .tg_configure_hw = port100_tg_configure_hw, | |
1482 | .tg_send_cmd = port100_tg_send_cmd, | |
1483 | ||
1484 | .switch_rf = port100_switch_rf, | |
1485 | .abort_cmd = port100_abort_cmd, | |
1486 | }; | |
1487 | ||
1488 | static const struct usb_device_id port100_table[] = { | |
9728ee92 OH |
1489 | { USB_DEVICE(SONY_VENDOR_ID, RCS380S_PRODUCT_ID), }, |
1490 | { USB_DEVICE(SONY_VENDOR_ID, RCS380P_PRODUCT_ID), }, | |
562d4d59 TE |
1491 | { } |
1492 | }; | |
1493 | MODULE_DEVICE_TABLE(usb, port100_table); | |
1494 | ||
1495 | static int port100_probe(struct usb_interface *interface, | |
1496 | const struct usb_device_id *id) | |
1497 | { | |
1498 | struct port100 *dev; | |
1499 | int rc; | |
0347a6ab TE |
1500 | struct usb_host_interface *iface_desc; |
1501 | struct usb_endpoint_descriptor *endpoint; | |
1502 | int in_endpoint; | |
1503 | int out_endpoint; | |
1504 | u16 fw_version; | |
1505 | u64 cmd_type_mask; | |
1506 | int i; | |
562d4d59 TE |
1507 | |
1508 | dev = devm_kzalloc(&interface->dev, sizeof(struct port100), GFP_KERNEL); | |
1509 | if (!dev) | |
1510 | return -ENOMEM; | |
1511 | ||
b74584c1 | 1512 | mutex_init(&dev->out_urb_lock); |
562d4d59 TE |
1513 | dev->udev = usb_get_dev(interface_to_usbdev(interface)); |
1514 | dev->interface = interface; | |
1515 | usb_set_intfdata(interface, dev); | |
1516 | ||
0347a6ab TE |
1517 | in_endpoint = out_endpoint = 0; |
1518 | iface_desc = interface->cur_altsetting; | |
1519 | for (i = 0; i < iface_desc->desc.bNumEndpoints; ++i) { | |
1520 | endpoint = &iface_desc->endpoint[i].desc; | |
1521 | ||
1522 | if (!in_endpoint && usb_endpoint_is_bulk_in(endpoint)) | |
1523 | in_endpoint = endpoint->bEndpointAddress; | |
1524 | ||
1525 | if (!out_endpoint && usb_endpoint_is_bulk_out(endpoint)) | |
1526 | out_endpoint = endpoint->bEndpointAddress; | |
1527 | } | |
1528 | ||
1529 | if (!in_endpoint || !out_endpoint) { | |
1530 | nfc_err(&interface->dev, | |
1531 | "Could not find bulk-in or bulk-out endpoint\n"); | |
1532 | rc = -ENODEV; | |
1533 | goto error; | |
1534 | } | |
1535 | ||
1536 | dev->in_urb = usb_alloc_urb(0, GFP_KERNEL); | |
1537 | dev->out_urb = usb_alloc_urb(0, GFP_KERNEL); | |
1538 | ||
1539 | if (!dev->in_urb || !dev->out_urb) { | |
1540 | nfc_err(&interface->dev, "Could not allocate USB URBs\n"); | |
1541 | rc = -ENOMEM; | |
1542 | goto error; | |
1543 | } | |
1544 | ||
1545 | usb_fill_bulk_urb(dev->in_urb, dev->udev, | |
1546 | usb_rcvbulkpipe(dev->udev, in_endpoint), | |
1547 | NULL, 0, NULL, dev); | |
1548 | usb_fill_bulk_urb(dev->out_urb, dev->udev, | |
1549 | usb_sndbulkpipe(dev->udev, out_endpoint), | |
1550 | NULL, 0, port100_send_complete, dev); | |
0ada0768 | 1551 | dev->out_urb->transfer_flags = URB_ZERO_PACKET; |
0347a6ab TE |
1552 | |
1553 | dev->skb_headroom = PORT100_FRAME_HEADER_LEN + | |
1554 | PORT100_COMM_RF_HEAD_MAX_LEN; | |
1555 | dev->skb_tailroom = PORT100_FRAME_TAIL_LEN; | |
1556 | ||
24971281 | 1557 | init_completion(&dev->cmd_cancel_done); |
0347a6ab TE |
1558 | INIT_WORK(&dev->cmd_complete_work, port100_wq_cmd_complete); |
1559 | ||
1560 | /* The first thing to do with the Port-100 is to set the command type | |
1561 | * to be used. If supported we use command type 1. 0 otherwise. | |
1562 | */ | |
1563 | cmd_type_mask = port100_get_command_type_mask(dev); | |
1564 | if (!cmd_type_mask) { | |
1565 | nfc_err(&interface->dev, | |
3590ebc0 | 1566 | "Could not get supported command types\n"); |
0347a6ab TE |
1567 | rc = -ENODEV; |
1568 | goto error; | |
1569 | } | |
1570 | ||
1571 | if (PORT100_CMD_TYPE_IS_SUPPORTED(cmd_type_mask, PORT100_CMD_TYPE_1)) | |
1572 | dev->cmd_type = PORT100_CMD_TYPE_1; | |
1573 | else | |
1574 | dev->cmd_type = PORT100_CMD_TYPE_0; | |
1575 | ||
1576 | rc = port100_set_command_type(dev, dev->cmd_type); | |
1577 | if (rc) { | |
1578 | nfc_err(&interface->dev, | |
3590ebc0 | 1579 | "The device does not support command type %u\n", |
0347a6ab TE |
1580 | dev->cmd_type); |
1581 | goto error; | |
1582 | } | |
1583 | ||
1584 | fw_version = port100_get_firmware_version(dev); | |
1585 | if (!fw_version) | |
1586 | nfc_err(&interface->dev, | |
3590ebc0 | 1587 | "Could not get device firmware version\n"); |
0347a6ab TE |
1588 | |
1589 | nfc_info(&interface->dev, | |
1590 | "Sony NFC Port-100 Series attached (firmware v%x.%02x)\n", | |
1591 | (fw_version & 0xFF00) >> 8, fw_version & 0xFF); | |
562d4d59 TE |
1592 | |
1593 | dev->nfc_digital_dev = nfc_digital_allocate_device(&port100_digital_ops, | |
1594 | PORT100_PROTOCOLS, | |
1595 | PORT100_CAPABILITIES, | |
1596 | dev->skb_headroom, | |
1597 | dev->skb_tailroom); | |
1598 | if (!dev->nfc_digital_dev) { | |
1599 | nfc_err(&interface->dev, | |
3590ebc0 | 1600 | "Could not allocate nfc_digital_dev\n"); |
562d4d59 TE |
1601 | rc = -ENOMEM; |
1602 | goto error; | |
1603 | } | |
1604 | ||
1605 | nfc_digital_set_parent_dev(dev->nfc_digital_dev, &interface->dev); | |
1606 | nfc_digital_set_drvdata(dev->nfc_digital_dev, dev); | |
1607 | ||
1608 | rc = nfc_digital_register_device(dev->nfc_digital_dev); | |
1609 | if (rc) { | |
1610 | nfc_err(&interface->dev, | |
3590ebc0 | 1611 | "Could not register digital device\n"); |
562d4d59 TE |
1612 | goto free_nfc_dev; |
1613 | } | |
1614 | ||
1615 | return 0; | |
1616 | ||
1617 | free_nfc_dev: | |
1618 | nfc_digital_free_device(dev->nfc_digital_dev); | |
1619 | ||
1620 | error: | |
0347a6ab TE |
1621 | usb_free_urb(dev->in_urb); |
1622 | usb_free_urb(dev->out_urb); | |
1623 | usb_put_dev(dev->udev); | |
1624 | ||
562d4d59 TE |
1625 | return rc; |
1626 | } | |
1627 | ||
1628 | static void port100_disconnect(struct usb_interface *interface) | |
1629 | { | |
1630 | struct port100 *dev; | |
1631 | ||
1632 | dev = usb_get_intfdata(interface); | |
1633 | usb_set_intfdata(interface, NULL); | |
1634 | ||
1635 | nfc_digital_unregister_device(dev->nfc_digital_dev); | |
1636 | nfc_digital_free_device(dev->nfc_digital_dev); | |
1637 | ||
0347a6ab TE |
1638 | usb_kill_urb(dev->in_urb); |
1639 | usb_kill_urb(dev->out_urb); | |
1640 | ||
1641 | usb_free_urb(dev->in_urb); | |
1642 | usb_free_urb(dev->out_urb); | |
c36aeba8 | 1643 | usb_put_dev(dev->udev); |
0347a6ab TE |
1644 | |
1645 | kfree(dev->cmd); | |
1646 | ||
3590ebc0 | 1647 | nfc_info(&interface->dev, "Sony Port-100 NFC device disconnected\n"); |
562d4d59 TE |
1648 | } |
1649 | ||
1650 | static struct usb_driver port100_driver = { | |
1651 | .name = "port100", | |
1652 | .probe = port100_probe, | |
1653 | .disconnect = port100_disconnect, | |
1654 | .id_table = port100_table, | |
1655 | }; | |
1656 | ||
1657 | module_usb_driver(port100_driver); | |
1658 | ||
1659 | MODULE_DESCRIPTION("NFC Port-100 series usb driver ver " VERSION); | |
1660 | MODULE_VERSION(VERSION); | |
1661 | MODULE_LICENSE("GPL"); |