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2025cf9e | 1 | // SPDX-License-Identifier: GPL-2.0-only |
562d4d59 TE |
2 | /* |
3 | * Sony NFC Port-100 Series driver | |
4 | * Copyright (c) 2013, Intel Corporation. | |
5 | * | |
6 | * Partly based/Inspired by Stephen Tiedemann's nfcpy | |
562d4d59 TE |
7 | */ |
8 | ||
9 | #include <linux/module.h> | |
10 | #include <linux/usb.h> | |
11 | #include <net/nfc/digital.h> | |
12 | ||
13 | #define VERSION "0.1" | |
14 | ||
9728ee92 OH |
15 | #define SONY_VENDOR_ID 0x054c |
16 | #define RCS380S_PRODUCT_ID 0x06c1 | |
17 | #define RCS380P_PRODUCT_ID 0x06c3 | |
562d4d59 TE |
18 | |
19 | #define PORT100_PROTOCOLS (NFC_PROTO_JEWEL_MASK | \ | |
20 | NFC_PROTO_MIFARE_MASK | \ | |
21 | NFC_PROTO_FELICA_MASK | \ | |
2a26f9a2 | 22 | NFC_PROTO_NFC_DEP_MASK | \ |
09592ccf TE |
23 | NFC_PROTO_ISO14443_MASK | \ |
24 | NFC_PROTO_ISO14443_B_MASK) | |
562d4d59 TE |
25 | |
26 | #define PORT100_CAPABILITIES (NFC_DIGITAL_DRV_CAPS_IN_CRC | \ | |
27 | NFC_DIGITAL_DRV_CAPS_TG_CRC) | |
28 | ||
0347a6ab TE |
29 | /* Standard port100 frame definitions */ |
30 | #define PORT100_FRAME_HEADER_LEN (sizeof(struct port100_frame) \ | |
31 | + 2) /* data[0] CC, data[1] SCC */ | |
32 | #define PORT100_FRAME_TAIL_LEN 2 /* data[len] DCS, data[len + 1] postamble*/ | |
33 | ||
34 | #define PORT100_COMM_RF_HEAD_MAX_LEN (sizeof(struct port100_tg_comm_rf_cmd)) | |
35 | ||
36 | /* | |
37 | * Max extended frame payload len, excluding CC and SCC | |
38 | * which are already in PORT100_FRAME_HEADER_LEN. | |
39 | */ | |
40 | #define PORT100_FRAME_MAX_PAYLOAD_LEN 1001 | |
41 | ||
42 | #define PORT100_FRAME_ACK_SIZE 6 /* Preamble (1), SoPC (2), ACK Code (2), | |
43 | Postamble (1) */ | |
44 | static u8 ack_frame[PORT100_FRAME_ACK_SIZE] = { | |
45 | 0x00, 0x00, 0xff, 0x00, 0xff, 0x00 | |
46 | }; | |
47 | ||
48 | #define PORT100_FRAME_CHECKSUM(f) (f->data[le16_to_cpu(f->datalen)]) | |
49 | #define PORT100_FRAME_POSTAMBLE(f) (f->data[le16_to_cpu(f->datalen) + 1]) | |
50 | ||
51 | /* start of frame */ | |
52 | #define PORT100_FRAME_SOF 0x00FF | |
53 | #define PORT100_FRAME_EXT 0xFFFF | |
54 | #define PORT100_FRAME_ACK 0x00FF | |
55 | ||
56 | /* Port-100 command: in or out */ | |
57 | #define PORT100_FRAME_DIRECTION(f) (f->data[0]) /* CC */ | |
58 | #define PORT100_FRAME_DIR_OUT 0xD6 | |
59 | #define PORT100_FRAME_DIR_IN 0xD7 | |
60 | ||
61 | /* Port-100 sub-command */ | |
62 | #define PORT100_FRAME_CMD(f) (f->data[1]) /* SCC */ | |
63 | ||
64 | #define PORT100_CMD_GET_FIRMWARE_VERSION 0x20 | |
65 | #define PORT100_CMD_GET_COMMAND_TYPE 0x28 | |
66 | #define PORT100_CMD_SET_COMMAND_TYPE 0x2A | |
67 | ||
9f7b57f2 TE |
68 | #define PORT100_CMD_IN_SET_RF 0x00 |
69 | #define PORT100_CMD_IN_SET_PROTOCOL 0x02 | |
70 | #define PORT100_CMD_IN_COMM_RF 0x04 | |
71 | ||
7227c021 TE |
72 | #define PORT100_CMD_TG_SET_RF 0x40 |
73 | #define PORT100_CMD_TG_SET_PROTOCOL 0x42 | |
74 | #define PORT100_CMD_TG_SET_RF_OFF 0x46 | |
75 | #define PORT100_CMD_TG_COMM_RF 0x48 | |
76 | ||
9f7b57f2 TE |
77 | #define PORT100_CMD_SWITCH_RF 0x06 |
78 | ||
0347a6ab TE |
79 | #define PORT100_CMD_RESPONSE(cmd) (cmd + 1) |
80 | ||
81 | #define PORT100_CMD_TYPE_IS_SUPPORTED(mask, cmd_type) \ | |
82 | ((mask) & (0x01 << (cmd_type))) | |
83 | #define PORT100_CMD_TYPE_0 0 | |
84 | #define PORT100_CMD_TYPE_1 1 | |
85 | ||
9f7b57f2 TE |
86 | #define PORT100_CMD_STATUS_OK 0x00 |
87 | #define PORT100_CMD_STATUS_TIMEOUT 0x80 | |
88 | ||
7227c021 TE |
89 | #define PORT100_MDAA_TGT_HAS_BEEN_ACTIVATED_MASK 0x01 |
90 | #define PORT100_MDAA_TGT_WAS_ACTIVATED_MASK 0x02 | |
91 | ||
0347a6ab TE |
92 | struct port100; |
93 | ||
94 | typedef void (*port100_send_async_complete_t)(struct port100 *dev, void *arg, | |
95 | struct sk_buff *resp); | |
96 | ||
9f7b57f2 TE |
97 | /** |
98 | * Setting sets structure for in_set_rf command | |
99 | * | |
100 | * @in_*_set_number: Represent the entry indexes in the port-100 RF Base Table. | |
101 | * This table contains multiple RF setting sets required for RF | |
102 | * communication. | |
103 | * | |
104 | * @in_*_comm_type: Theses fields set the communication type to be used. | |
105 | */ | |
106 | struct port100_in_rf_setting { | |
107 | u8 in_send_set_number; | |
108 | u8 in_send_comm_type; | |
109 | u8 in_recv_set_number; | |
110 | u8 in_recv_comm_type; | |
111 | } __packed; | |
112 | ||
113 | #define PORT100_COMM_TYPE_IN_212F 0x01 | |
114 | #define PORT100_COMM_TYPE_IN_424F 0x02 | |
115 | #define PORT100_COMM_TYPE_IN_106A 0x03 | |
09592ccf | 116 | #define PORT100_COMM_TYPE_IN_106B 0x07 |
9f7b57f2 TE |
117 | |
118 | static const struct port100_in_rf_setting in_rf_settings[] = { | |
119 | [NFC_DIGITAL_RF_TECH_212F] = { | |
120 | .in_send_set_number = 1, | |
121 | .in_send_comm_type = PORT100_COMM_TYPE_IN_212F, | |
122 | .in_recv_set_number = 15, | |
123 | .in_recv_comm_type = PORT100_COMM_TYPE_IN_212F, | |
124 | }, | |
125 | [NFC_DIGITAL_RF_TECH_424F] = { | |
126 | .in_send_set_number = 1, | |
127 | .in_send_comm_type = PORT100_COMM_TYPE_IN_424F, | |
128 | .in_recv_set_number = 15, | |
129 | .in_recv_comm_type = PORT100_COMM_TYPE_IN_424F, | |
130 | }, | |
131 | [NFC_DIGITAL_RF_TECH_106A] = { | |
132 | .in_send_set_number = 2, | |
133 | .in_send_comm_type = PORT100_COMM_TYPE_IN_106A, | |
134 | .in_recv_set_number = 15, | |
135 | .in_recv_comm_type = PORT100_COMM_TYPE_IN_106A, | |
136 | }, | |
09592ccf TE |
137 | [NFC_DIGITAL_RF_TECH_106B] = { |
138 | .in_send_set_number = 3, | |
139 | .in_send_comm_type = PORT100_COMM_TYPE_IN_106B, | |
140 | .in_recv_set_number = 15, | |
141 | .in_recv_comm_type = PORT100_COMM_TYPE_IN_106B, | |
142 | }, | |
d3815ea9 TE |
143 | /* Ensures the array has NFC_DIGITAL_RF_TECH_LAST elements */ |
144 | [NFC_DIGITAL_RF_TECH_LAST] = { 0 }, | |
9f7b57f2 TE |
145 | }; |
146 | ||
7227c021 TE |
147 | /** |
148 | * Setting sets structure for tg_set_rf command | |
149 | * | |
150 | * @tg_set_number: Represents the entry index in the port-100 RF Base Table. | |
151 | * This table contains multiple RF setting sets required for RF | |
152 | * communication. this field is used for both send and receive | |
153 | * settings. | |
154 | * | |
155 | * @tg_comm_type: Sets the communication type to be used to send and receive | |
156 | * data. | |
157 | */ | |
158 | struct port100_tg_rf_setting { | |
159 | u8 tg_set_number; | |
160 | u8 tg_comm_type; | |
161 | } __packed; | |
162 | ||
163 | #define PORT100_COMM_TYPE_TG_106A 0x0B | |
164 | #define PORT100_COMM_TYPE_TG_212F 0x0C | |
165 | #define PORT100_COMM_TYPE_TG_424F 0x0D | |
166 | ||
167 | static const struct port100_tg_rf_setting tg_rf_settings[] = { | |
168 | [NFC_DIGITAL_RF_TECH_106A] = { | |
169 | .tg_set_number = 8, | |
170 | .tg_comm_type = PORT100_COMM_TYPE_TG_106A, | |
171 | }, | |
172 | [NFC_DIGITAL_RF_TECH_212F] = { | |
173 | .tg_set_number = 8, | |
174 | .tg_comm_type = PORT100_COMM_TYPE_TG_212F, | |
175 | }, | |
176 | [NFC_DIGITAL_RF_TECH_424F] = { | |
177 | .tg_set_number = 8, | |
178 | .tg_comm_type = PORT100_COMM_TYPE_TG_424F, | |
179 | }, | |
d3815ea9 TE |
180 | /* Ensures the array has NFC_DIGITAL_RF_TECH_LAST elements */ |
181 | [NFC_DIGITAL_RF_TECH_LAST] = { 0 }, | |
182 | ||
7227c021 TE |
183 | }; |
184 | ||
9f7b57f2 TE |
185 | #define PORT100_IN_PROT_INITIAL_GUARD_TIME 0x00 |
186 | #define PORT100_IN_PROT_ADD_CRC 0x01 | |
187 | #define PORT100_IN_PROT_CHECK_CRC 0x02 | |
188 | #define PORT100_IN_PROT_MULTI_CARD 0x03 | |
189 | #define PORT100_IN_PROT_ADD_PARITY 0x04 | |
190 | #define PORT100_IN_PROT_CHECK_PARITY 0x05 | |
191 | #define PORT100_IN_PROT_BITWISE_AC_RECV_MODE 0x06 | |
192 | #define PORT100_IN_PROT_VALID_BIT_NUMBER 0x07 | |
193 | #define PORT100_IN_PROT_CRYPTO1 0x08 | |
194 | #define PORT100_IN_PROT_ADD_SOF 0x09 | |
195 | #define PORT100_IN_PROT_CHECK_SOF 0x0A | |
196 | #define PORT100_IN_PROT_ADD_EOF 0x0B | |
197 | #define PORT100_IN_PROT_CHECK_EOF 0x0C | |
198 | #define PORT100_IN_PROT_DEAF_TIME 0x0E | |
199 | #define PORT100_IN_PROT_CRM 0x0F | |
200 | #define PORT100_IN_PROT_CRM_MIN_LEN 0x10 | |
201 | #define PORT100_IN_PROT_T1_TAG_FRAME 0x11 | |
202 | #define PORT100_IN_PROT_RFCA 0x12 | |
203 | #define PORT100_IN_PROT_GUARD_TIME_AT_INITIATOR 0x13 | |
204 | #define PORT100_IN_PROT_END 0x14 | |
205 | ||
206 | #define PORT100_IN_MAX_NUM_PROTOCOLS 19 | |
207 | ||
7227c021 TE |
208 | #define PORT100_TG_PROT_TU 0x00 |
209 | #define PORT100_TG_PROT_RF_OFF 0x01 | |
210 | #define PORT100_TG_PROT_CRM 0x02 | |
211 | #define PORT100_TG_PROT_END 0x03 | |
212 | ||
213 | #define PORT100_TG_MAX_NUM_PROTOCOLS 3 | |
214 | ||
9f7b57f2 TE |
215 | struct port100_protocol { |
216 | u8 number; | |
217 | u8 value; | |
218 | } __packed; | |
219 | ||
220 | static struct port100_protocol | |
221 | in_protocols[][PORT100_IN_MAX_NUM_PROTOCOLS + 1] = { | |
222 | [NFC_DIGITAL_FRAMING_NFCA_SHORT] = { | |
223 | { PORT100_IN_PROT_INITIAL_GUARD_TIME, 6 }, | |
224 | { PORT100_IN_PROT_ADD_CRC, 0 }, | |
225 | { PORT100_IN_PROT_CHECK_CRC, 0 }, | |
226 | { PORT100_IN_PROT_MULTI_CARD, 0 }, | |
227 | { PORT100_IN_PROT_ADD_PARITY, 0 }, | |
228 | { PORT100_IN_PROT_CHECK_PARITY, 1 }, | |
229 | { PORT100_IN_PROT_BITWISE_AC_RECV_MODE, 0 }, | |
230 | { PORT100_IN_PROT_VALID_BIT_NUMBER, 7 }, | |
231 | { PORT100_IN_PROT_CRYPTO1, 0 }, | |
232 | { PORT100_IN_PROT_ADD_SOF, 0 }, | |
233 | { PORT100_IN_PROT_CHECK_SOF, 0 }, | |
234 | { PORT100_IN_PROT_ADD_EOF, 0 }, | |
235 | { PORT100_IN_PROT_CHECK_EOF, 0 }, | |
236 | { PORT100_IN_PROT_DEAF_TIME, 4 }, | |
237 | { PORT100_IN_PROT_CRM, 0 }, | |
238 | { PORT100_IN_PROT_CRM_MIN_LEN, 0 }, | |
239 | { PORT100_IN_PROT_T1_TAG_FRAME, 0 }, | |
240 | { PORT100_IN_PROT_RFCA, 0 }, | |
241 | { PORT100_IN_PROT_GUARD_TIME_AT_INITIATOR, 6 }, | |
242 | { PORT100_IN_PROT_END, 0 }, | |
243 | }, | |
244 | [NFC_DIGITAL_FRAMING_NFCA_STANDARD] = { | |
245 | { PORT100_IN_PROT_INITIAL_GUARD_TIME, 6 }, | |
246 | { PORT100_IN_PROT_ADD_CRC, 0 }, | |
247 | { PORT100_IN_PROT_CHECK_CRC, 0 }, | |
248 | { PORT100_IN_PROT_MULTI_CARD, 0 }, | |
249 | { PORT100_IN_PROT_ADD_PARITY, 1 }, | |
250 | { PORT100_IN_PROT_CHECK_PARITY, 1 }, | |
251 | { PORT100_IN_PROT_BITWISE_AC_RECV_MODE, 0 }, | |
252 | { PORT100_IN_PROT_VALID_BIT_NUMBER, 8 }, | |
253 | { PORT100_IN_PROT_CRYPTO1, 0 }, | |
254 | { PORT100_IN_PROT_ADD_SOF, 0 }, | |
255 | { PORT100_IN_PROT_CHECK_SOF, 0 }, | |
256 | { PORT100_IN_PROT_ADD_EOF, 0 }, | |
257 | { PORT100_IN_PROT_CHECK_EOF, 0 }, | |
258 | { PORT100_IN_PROT_DEAF_TIME, 4 }, | |
259 | { PORT100_IN_PROT_CRM, 0 }, | |
260 | { PORT100_IN_PROT_CRM_MIN_LEN, 0 }, | |
261 | { PORT100_IN_PROT_T1_TAG_FRAME, 0 }, | |
262 | { PORT100_IN_PROT_RFCA, 0 }, | |
263 | { PORT100_IN_PROT_GUARD_TIME_AT_INITIATOR, 6 }, | |
264 | { PORT100_IN_PROT_END, 0 }, | |
265 | }, | |
266 | [NFC_DIGITAL_FRAMING_NFCA_STANDARD_WITH_CRC_A] = { | |
267 | { PORT100_IN_PROT_INITIAL_GUARD_TIME, 6 }, | |
268 | { PORT100_IN_PROT_ADD_CRC, 1 }, | |
269 | { PORT100_IN_PROT_CHECK_CRC, 1 }, | |
270 | { PORT100_IN_PROT_MULTI_CARD, 0 }, | |
271 | { PORT100_IN_PROT_ADD_PARITY, 1 }, | |
272 | { PORT100_IN_PROT_CHECK_PARITY, 1 }, | |
273 | { PORT100_IN_PROT_BITWISE_AC_RECV_MODE, 0 }, | |
274 | { PORT100_IN_PROT_VALID_BIT_NUMBER, 8 }, | |
275 | { PORT100_IN_PROT_CRYPTO1, 0 }, | |
276 | { PORT100_IN_PROT_ADD_SOF, 0 }, | |
277 | { PORT100_IN_PROT_CHECK_SOF, 0 }, | |
278 | { PORT100_IN_PROT_ADD_EOF, 0 }, | |
279 | { PORT100_IN_PROT_CHECK_EOF, 0 }, | |
280 | { PORT100_IN_PROT_DEAF_TIME, 4 }, | |
281 | { PORT100_IN_PROT_CRM, 0 }, | |
282 | { PORT100_IN_PROT_CRM_MIN_LEN, 0 }, | |
283 | { PORT100_IN_PROT_T1_TAG_FRAME, 0 }, | |
284 | { PORT100_IN_PROT_RFCA, 0 }, | |
285 | { PORT100_IN_PROT_GUARD_TIME_AT_INITIATOR, 6 }, | |
286 | { PORT100_IN_PROT_END, 0 }, | |
287 | }, | |
288 | [NFC_DIGITAL_FRAMING_NFCA_T1T] = { | |
289 | /* nfc_digital_framing_nfca_short */ | |
290 | { PORT100_IN_PROT_ADD_CRC, 2 }, | |
291 | { PORT100_IN_PROT_CHECK_CRC, 2 }, | |
292 | { PORT100_IN_PROT_VALID_BIT_NUMBER, 8 }, | |
293 | { PORT100_IN_PROT_T1_TAG_FRAME, 2 }, | |
294 | { PORT100_IN_PROT_END, 0 }, | |
295 | }, | |
296 | [NFC_DIGITAL_FRAMING_NFCA_T2T] = { | |
297 | /* nfc_digital_framing_nfca_standard */ | |
298 | { PORT100_IN_PROT_ADD_CRC, 1 }, | |
299 | { PORT100_IN_PROT_CHECK_CRC, 0 }, | |
300 | { PORT100_IN_PROT_END, 0 }, | |
301 | }, | |
2a26f9a2 TE |
302 | [NFC_DIGITAL_FRAMING_NFCA_T4T] = { |
303 | /* nfc_digital_framing_nfca_standard_with_crc_a */ | |
304 | { PORT100_IN_PROT_END, 0 }, | |
305 | }, | |
9f7b57f2 TE |
306 | [NFC_DIGITAL_FRAMING_NFCA_NFC_DEP] = { |
307 | /* nfc_digital_framing_nfca_standard */ | |
308 | { PORT100_IN_PROT_END, 0 }, | |
309 | }, | |
310 | [NFC_DIGITAL_FRAMING_NFCF] = { | |
311 | { PORT100_IN_PROT_INITIAL_GUARD_TIME, 18 }, | |
312 | { PORT100_IN_PROT_ADD_CRC, 1 }, | |
313 | { PORT100_IN_PROT_CHECK_CRC, 1 }, | |
314 | { PORT100_IN_PROT_MULTI_CARD, 0 }, | |
315 | { PORT100_IN_PROT_ADD_PARITY, 0 }, | |
316 | { PORT100_IN_PROT_CHECK_PARITY, 0 }, | |
317 | { PORT100_IN_PROT_BITWISE_AC_RECV_MODE, 0 }, | |
318 | { PORT100_IN_PROT_VALID_BIT_NUMBER, 8 }, | |
319 | { PORT100_IN_PROT_CRYPTO1, 0 }, | |
320 | { PORT100_IN_PROT_ADD_SOF, 0 }, | |
321 | { PORT100_IN_PROT_CHECK_SOF, 0 }, | |
322 | { PORT100_IN_PROT_ADD_EOF, 0 }, | |
323 | { PORT100_IN_PROT_CHECK_EOF, 0 }, | |
324 | { PORT100_IN_PROT_DEAF_TIME, 4 }, | |
325 | { PORT100_IN_PROT_CRM, 0 }, | |
326 | { PORT100_IN_PROT_CRM_MIN_LEN, 0 }, | |
327 | { PORT100_IN_PROT_T1_TAG_FRAME, 0 }, | |
328 | { PORT100_IN_PROT_RFCA, 0 }, | |
329 | { PORT100_IN_PROT_GUARD_TIME_AT_INITIATOR, 6 }, | |
330 | { PORT100_IN_PROT_END, 0 }, | |
331 | }, | |
332 | [NFC_DIGITAL_FRAMING_NFCF_T3T] = { | |
333 | /* nfc_digital_framing_nfcf */ | |
334 | { PORT100_IN_PROT_END, 0 }, | |
335 | }, | |
336 | [NFC_DIGITAL_FRAMING_NFCF_NFC_DEP] = { | |
337 | /* nfc_digital_framing_nfcf */ | |
a81ba50a TE |
338 | { PORT100_IN_PROT_INITIAL_GUARD_TIME, 18 }, |
339 | { PORT100_IN_PROT_ADD_CRC, 1 }, | |
340 | { PORT100_IN_PROT_CHECK_CRC, 1 }, | |
341 | { PORT100_IN_PROT_MULTI_CARD, 0 }, | |
342 | { PORT100_IN_PROT_ADD_PARITY, 0 }, | |
343 | { PORT100_IN_PROT_CHECK_PARITY, 0 }, | |
344 | { PORT100_IN_PROT_BITWISE_AC_RECV_MODE, 0 }, | |
345 | { PORT100_IN_PROT_VALID_BIT_NUMBER, 8 }, | |
346 | { PORT100_IN_PROT_CRYPTO1, 0 }, | |
347 | { PORT100_IN_PROT_ADD_SOF, 0 }, | |
348 | { PORT100_IN_PROT_CHECK_SOF, 0 }, | |
349 | { PORT100_IN_PROT_ADD_EOF, 0 }, | |
350 | { PORT100_IN_PROT_CHECK_EOF, 0 }, | |
351 | { PORT100_IN_PROT_DEAF_TIME, 4 }, | |
352 | { PORT100_IN_PROT_CRM, 0 }, | |
353 | { PORT100_IN_PROT_CRM_MIN_LEN, 0 }, | |
354 | { PORT100_IN_PROT_T1_TAG_FRAME, 0 }, | |
355 | { PORT100_IN_PROT_RFCA, 0 }, | |
356 | { PORT100_IN_PROT_GUARD_TIME_AT_INITIATOR, 6 }, | |
357 | { PORT100_IN_PROT_END, 0 }, | |
9f7b57f2 TE |
358 | }, |
359 | [NFC_DIGITAL_FRAMING_NFC_DEP_ACTIVATED] = { | |
360 | { PORT100_IN_PROT_END, 0 }, | |
361 | }, | |
09592ccf TE |
362 | [NFC_DIGITAL_FRAMING_NFCB] = { |
363 | { PORT100_IN_PROT_INITIAL_GUARD_TIME, 20 }, | |
364 | { PORT100_IN_PROT_ADD_CRC, 1 }, | |
365 | { PORT100_IN_PROT_CHECK_CRC, 1 }, | |
366 | { PORT100_IN_PROT_MULTI_CARD, 0 }, | |
367 | { PORT100_IN_PROT_ADD_PARITY, 0 }, | |
368 | { PORT100_IN_PROT_CHECK_PARITY, 0 }, | |
369 | { PORT100_IN_PROT_BITWISE_AC_RECV_MODE, 0 }, | |
370 | { PORT100_IN_PROT_VALID_BIT_NUMBER, 8 }, | |
371 | { PORT100_IN_PROT_CRYPTO1, 0 }, | |
372 | { PORT100_IN_PROT_ADD_SOF, 1 }, | |
373 | { PORT100_IN_PROT_CHECK_SOF, 1 }, | |
374 | { PORT100_IN_PROT_ADD_EOF, 1 }, | |
375 | { PORT100_IN_PROT_CHECK_EOF, 1 }, | |
376 | { PORT100_IN_PROT_DEAF_TIME, 4 }, | |
377 | { PORT100_IN_PROT_CRM, 0 }, | |
378 | { PORT100_IN_PROT_CRM_MIN_LEN, 0 }, | |
379 | { PORT100_IN_PROT_T1_TAG_FRAME, 0 }, | |
380 | { PORT100_IN_PROT_RFCA, 0 }, | |
381 | { PORT100_IN_PROT_GUARD_TIME_AT_INITIATOR, 6 }, | |
382 | { PORT100_IN_PROT_END, 0 }, | |
383 | }, | |
384 | [NFC_DIGITAL_FRAMING_NFCB_T4T] = { | |
385 | /* nfc_digital_framing_nfcb */ | |
386 | { PORT100_IN_PROT_END, 0 }, | |
387 | }, | |
d3815ea9 TE |
388 | /* Ensures the array has NFC_DIGITAL_FRAMING_LAST elements */ |
389 | [NFC_DIGITAL_FRAMING_LAST] = { | |
390 | { PORT100_IN_PROT_END, 0 }, | |
391 | }, | |
9f7b57f2 TE |
392 | }; |
393 | ||
7227c021 TE |
394 | static struct port100_protocol |
395 | tg_protocols[][PORT100_TG_MAX_NUM_PROTOCOLS + 1] = { | |
396 | [NFC_DIGITAL_FRAMING_NFCA_SHORT] = { | |
397 | { PORT100_TG_PROT_END, 0 }, | |
398 | }, | |
399 | [NFC_DIGITAL_FRAMING_NFCA_STANDARD] = { | |
400 | { PORT100_TG_PROT_END, 0 }, | |
401 | }, | |
402 | [NFC_DIGITAL_FRAMING_NFCA_STANDARD_WITH_CRC_A] = { | |
403 | { PORT100_TG_PROT_END, 0 }, | |
404 | }, | |
405 | [NFC_DIGITAL_FRAMING_NFCA_T1T] = { | |
406 | { PORT100_TG_PROT_END, 0 }, | |
407 | }, | |
408 | [NFC_DIGITAL_FRAMING_NFCA_T2T] = { | |
409 | { PORT100_TG_PROT_END, 0 }, | |
410 | }, | |
411 | [NFC_DIGITAL_FRAMING_NFCA_NFC_DEP] = { | |
412 | { PORT100_TG_PROT_TU, 1 }, | |
413 | { PORT100_TG_PROT_RF_OFF, 0 }, | |
414 | { PORT100_TG_PROT_CRM, 7 }, | |
415 | { PORT100_TG_PROT_END, 0 }, | |
416 | }, | |
417 | [NFC_DIGITAL_FRAMING_NFCF] = { | |
418 | { PORT100_TG_PROT_END, 0 }, | |
419 | }, | |
420 | [NFC_DIGITAL_FRAMING_NFCF_T3T] = { | |
421 | { PORT100_TG_PROT_END, 0 }, | |
422 | }, | |
423 | [NFC_DIGITAL_FRAMING_NFCF_NFC_DEP] = { | |
424 | { PORT100_TG_PROT_TU, 1 }, | |
425 | { PORT100_TG_PROT_RF_OFF, 0 }, | |
426 | { PORT100_TG_PROT_CRM, 7 }, | |
427 | { PORT100_TG_PROT_END, 0 }, | |
428 | }, | |
429 | [NFC_DIGITAL_FRAMING_NFC_DEP_ACTIVATED] = { | |
430 | { PORT100_TG_PROT_RF_OFF, 1 }, | |
431 | { PORT100_TG_PROT_END, 0 }, | |
432 | }, | |
d3815ea9 TE |
433 | /* Ensures the array has NFC_DIGITAL_FRAMING_LAST elements */ |
434 | [NFC_DIGITAL_FRAMING_LAST] = { | |
435 | { PORT100_TG_PROT_END, 0 }, | |
436 | }, | |
7227c021 TE |
437 | }; |
438 | ||
562d4d59 TE |
439 | struct port100 { |
440 | struct nfc_digital_dev *nfc_digital_dev; | |
441 | ||
442 | int skb_headroom; | |
443 | int skb_tailroom; | |
444 | ||
445 | struct usb_device *udev; | |
446 | struct usb_interface *interface; | |
0347a6ab TE |
447 | |
448 | struct urb *out_urb; | |
449 | struct urb *in_urb; | |
450 | ||
b74584c1 TE |
451 | /* This mutex protects the out_urb and avoids to submit a new command |
452 | * through port100_send_frame_async() while the previous one is being | |
453 | * canceled through port100_abort_cmd(). | |
454 | */ | |
455 | struct mutex out_urb_lock; | |
456 | ||
0347a6ab TE |
457 | struct work_struct cmd_complete_work; |
458 | ||
459 | u8 cmd_type; | |
460 | ||
461 | /* The digital stack serializes commands to be sent. There is no need | |
462 | * for any queuing/locking mechanism at driver level. | |
463 | */ | |
464 | struct port100_cmd *cmd; | |
b74584c1 TE |
465 | |
466 | bool cmd_cancel; | |
a52bd7d2 | 467 | struct completion cmd_cancel_done; |
0347a6ab TE |
468 | }; |
469 | ||
470 | struct port100_cmd { | |
471 | u8 code; | |
472 | int status; | |
473 | struct sk_buff *req; | |
474 | struct sk_buff *resp; | |
475 | int resp_len; | |
476 | port100_send_async_complete_t complete_cb; | |
477 | void *complete_cb_context; | |
478 | }; | |
479 | ||
480 | struct port100_frame { | |
481 | u8 preamble; | |
482 | __be16 start_frame; | |
483 | __be16 extended_frame; | |
484 | __le16 datalen; | |
485 | u8 datalen_checksum; | |
486 | u8 data[]; | |
487 | } __packed; | |
488 | ||
489 | struct port100_ack_frame { | |
490 | u8 preamble; | |
491 | __be16 start_frame; | |
492 | __be16 ack_frame; | |
493 | u8 postambule; | |
494 | } __packed; | |
495 | ||
496 | struct port100_cb_arg { | |
497 | nfc_digital_cmd_complete_t complete_cb; | |
498 | void *complete_arg; | |
499 | u8 mdaa; | |
562d4d59 TE |
500 | }; |
501 | ||
0347a6ab TE |
502 | struct port100_tg_comm_rf_cmd { |
503 | __le16 guard_time; | |
504 | __le16 send_timeout; | |
505 | u8 mdaa; | |
506 | u8 nfca_param[6]; | |
507 | u8 nfcf_param[18]; | |
508 | u8 mf_halted; | |
509 | u8 arae_flag; | |
510 | __le16 recv_timeout; | |
511 | u8 data[]; | |
512 | } __packed; | |
513 | ||
7227c021 TE |
514 | struct port100_tg_comm_rf_res { |
515 | u8 comm_type; | |
516 | u8 ar_status; | |
517 | u8 target_activated; | |
518 | __le32 status; | |
519 | u8 data[]; | |
520 | } __packed; | |
521 | ||
0347a6ab TE |
522 | /* The rule: value + checksum = 0 */ |
523 | static inline u8 port100_checksum(u16 value) | |
524 | { | |
525 | return ~(((u8 *)&value)[0] + ((u8 *)&value)[1]) + 1; | |
526 | } | |
527 | ||
528 | /* The rule: sum(data elements) + checksum = 0 */ | |
529 | static u8 port100_data_checksum(u8 *data, int datalen) | |
530 | { | |
531 | u8 sum = 0; | |
532 | int i; | |
533 | ||
534 | for (i = 0; i < datalen; i++) | |
535 | sum += data[i]; | |
536 | ||
537 | return port100_checksum(sum); | |
538 | } | |
539 | ||
540 | static void port100_tx_frame_init(void *_frame, u8 cmd_code) | |
541 | { | |
542 | struct port100_frame *frame = _frame; | |
543 | ||
544 | frame->preamble = 0; | |
545 | frame->start_frame = cpu_to_be16(PORT100_FRAME_SOF); | |
546 | frame->extended_frame = cpu_to_be16(PORT100_FRAME_EXT); | |
547 | PORT100_FRAME_DIRECTION(frame) = PORT100_FRAME_DIR_OUT; | |
548 | PORT100_FRAME_CMD(frame) = cmd_code; | |
549 | frame->datalen = cpu_to_le16(2); | |
550 | } | |
551 | ||
552 | static void port100_tx_frame_finish(void *_frame) | |
553 | { | |
554 | struct port100_frame *frame = _frame; | |
555 | ||
556 | frame->datalen_checksum = port100_checksum(le16_to_cpu(frame->datalen)); | |
557 | ||
558 | PORT100_FRAME_CHECKSUM(frame) = | |
559 | port100_data_checksum(frame->data, le16_to_cpu(frame->datalen)); | |
560 | ||
561 | PORT100_FRAME_POSTAMBLE(frame) = 0; | |
562 | } | |
563 | ||
564 | static void port100_tx_update_payload_len(void *_frame, int len) | |
565 | { | |
566 | struct port100_frame *frame = _frame; | |
567 | ||
568 | frame->datalen = cpu_to_le16(le16_to_cpu(frame->datalen) + len); | |
569 | } | |
570 | ||
571 | static bool port100_rx_frame_is_valid(void *_frame) | |
572 | { | |
573 | u8 checksum; | |
574 | struct port100_frame *frame = _frame; | |
575 | ||
576 | if (frame->start_frame != cpu_to_be16(PORT100_FRAME_SOF) || | |
577 | frame->extended_frame != cpu_to_be16(PORT100_FRAME_EXT)) | |
578 | return false; | |
579 | ||
580 | checksum = port100_checksum(le16_to_cpu(frame->datalen)); | |
581 | if (checksum != frame->datalen_checksum) | |
582 | return false; | |
583 | ||
584 | checksum = port100_data_checksum(frame->data, | |
585 | le16_to_cpu(frame->datalen)); | |
586 | if (checksum != PORT100_FRAME_CHECKSUM(frame)) | |
587 | return false; | |
588 | ||
589 | return true; | |
590 | } | |
591 | ||
592 | static bool port100_rx_frame_is_ack(struct port100_ack_frame *frame) | |
593 | { | |
594 | return (frame->start_frame == cpu_to_be16(PORT100_FRAME_SOF) && | |
595 | frame->ack_frame == cpu_to_be16(PORT100_FRAME_ACK)); | |
596 | } | |
597 | ||
598 | static inline int port100_rx_frame_size(void *frame) | |
599 | { | |
600 | struct port100_frame *f = frame; | |
601 | ||
602 | return sizeof(struct port100_frame) + le16_to_cpu(f->datalen) + | |
603 | PORT100_FRAME_TAIL_LEN; | |
604 | } | |
605 | ||
606 | static bool port100_rx_frame_is_cmd_response(struct port100 *dev, void *frame) | |
607 | { | |
608 | struct port100_frame *f = frame; | |
609 | ||
610 | return (PORT100_FRAME_CMD(f) == PORT100_CMD_RESPONSE(dev->cmd->code)); | |
611 | } | |
612 | ||
613 | static void port100_recv_response(struct urb *urb) | |
614 | { | |
615 | struct port100 *dev = urb->context; | |
616 | struct port100_cmd *cmd = dev->cmd; | |
617 | u8 *in_frame; | |
618 | ||
619 | cmd->status = urb->status; | |
620 | ||
621 | switch (urb->status) { | |
622 | case 0: | |
623 | break; /* success */ | |
624 | case -ECONNRESET: | |
625 | case -ENOENT: | |
626 | nfc_err(&dev->interface->dev, | |
3590ebc0 | 627 | "The urb has been canceled (status %d)\n", urb->status); |
0347a6ab TE |
628 | goto sched_wq; |
629 | case -ESHUTDOWN: | |
630 | default: | |
3590ebc0 | 631 | nfc_err(&dev->interface->dev, "Urb failure (status %d)\n", |
0347a6ab TE |
632 | urb->status); |
633 | goto sched_wq; | |
634 | } | |
635 | ||
636 | in_frame = dev->in_urb->transfer_buffer; | |
637 | ||
638 | if (!port100_rx_frame_is_valid(in_frame)) { | |
3590ebc0 | 639 | nfc_err(&dev->interface->dev, "Received an invalid frame\n"); |
0347a6ab TE |
640 | cmd->status = -EIO; |
641 | goto sched_wq; | |
642 | } | |
643 | ||
644 | print_hex_dump_debug("PORT100 RX: ", DUMP_PREFIX_NONE, 16, 1, in_frame, | |
645 | port100_rx_frame_size(in_frame), false); | |
646 | ||
647 | if (!port100_rx_frame_is_cmd_response(dev, in_frame)) { | |
648 | nfc_err(&dev->interface->dev, | |
3590ebc0 | 649 | "It's not the response to the last command\n"); |
0347a6ab TE |
650 | cmd->status = -EIO; |
651 | goto sched_wq; | |
652 | } | |
653 | ||
654 | sched_wq: | |
655 | schedule_work(&dev->cmd_complete_work); | |
656 | } | |
657 | ||
658 | static int port100_submit_urb_for_response(struct port100 *dev, gfp_t flags) | |
659 | { | |
660 | dev->in_urb->complete = port100_recv_response; | |
661 | ||
662 | return usb_submit_urb(dev->in_urb, flags); | |
663 | } | |
664 | ||
665 | static void port100_recv_ack(struct urb *urb) | |
666 | { | |
667 | struct port100 *dev = urb->context; | |
668 | struct port100_cmd *cmd = dev->cmd; | |
669 | struct port100_ack_frame *in_frame; | |
670 | int rc; | |
671 | ||
672 | cmd->status = urb->status; | |
673 | ||
674 | switch (urb->status) { | |
675 | case 0: | |
676 | break; /* success */ | |
677 | case -ECONNRESET: | |
678 | case -ENOENT: | |
679 | nfc_err(&dev->interface->dev, | |
3590ebc0 | 680 | "The urb has been stopped (status %d)\n", urb->status); |
0347a6ab TE |
681 | goto sched_wq; |
682 | case -ESHUTDOWN: | |
683 | default: | |
3590ebc0 | 684 | nfc_err(&dev->interface->dev, "Urb failure (status %d)\n", |
0347a6ab TE |
685 | urb->status); |
686 | goto sched_wq; | |
687 | } | |
688 | ||
689 | in_frame = dev->in_urb->transfer_buffer; | |
690 | ||
691 | if (!port100_rx_frame_is_ack(in_frame)) { | |
3590ebc0 | 692 | nfc_err(&dev->interface->dev, "Received an invalid ack\n"); |
0347a6ab TE |
693 | cmd->status = -EIO; |
694 | goto sched_wq; | |
695 | } | |
696 | ||
697 | rc = port100_submit_urb_for_response(dev, GFP_ATOMIC); | |
698 | if (rc) { | |
699 | nfc_err(&dev->interface->dev, | |
3590ebc0 | 700 | "usb_submit_urb failed with result %d\n", rc); |
0347a6ab TE |
701 | cmd->status = rc; |
702 | goto sched_wq; | |
703 | } | |
704 | ||
705 | return; | |
706 | ||
707 | sched_wq: | |
708 | schedule_work(&dev->cmd_complete_work); | |
709 | } | |
710 | ||
711 | static int port100_submit_urb_for_ack(struct port100 *dev, gfp_t flags) | |
712 | { | |
713 | dev->in_urb->complete = port100_recv_ack; | |
714 | ||
715 | return usb_submit_urb(dev->in_urb, flags); | |
716 | } | |
717 | ||
718 | static int port100_send_ack(struct port100 *dev) | |
719 | { | |
24971281 | 720 | int rc = 0; |
0347a6ab | 721 | |
b74584c1 TE |
722 | mutex_lock(&dev->out_urb_lock); |
723 | ||
24971281 OH |
724 | /* |
725 | * If prior cancel is in-flight (dev->cmd_cancel == true), we | |
726 | * can skip to send cancel. Then this will wait the prior | |
727 | * cancel, or merged into the next cancel rarely if next | |
728 | * cancel was started before waiting done. In any case, this | |
729 | * will be waked up soon or later. | |
730 | */ | |
731 | if (!dev->cmd_cancel) { | |
732 | reinit_completion(&dev->cmd_cancel_done); | |
a52bd7d2 | 733 | |
24971281 | 734 | usb_kill_urb(dev->out_urb); |
b74584c1 | 735 | |
24971281 OH |
736 | dev->out_urb->transfer_buffer = ack_frame; |
737 | dev->out_urb->transfer_buffer_length = sizeof(ack_frame); | |
738 | rc = usb_submit_urb(dev->out_urb, GFP_KERNEL); | |
0347a6ab | 739 | |
24971281 OH |
740 | /* |
741 | * Set the cmd_cancel flag only if the URB has been | |
742 | * successfully submitted. It will be reset by the out | |
743 | * URB completion callback port100_send_complete(). | |
744 | */ | |
745 | dev->cmd_cancel = !rc; | |
746 | } | |
b74584c1 TE |
747 | |
748 | mutex_unlock(&dev->out_urb_lock); | |
749 | ||
a52bd7d2 TE |
750 | if (!rc) |
751 | wait_for_completion(&dev->cmd_cancel_done); | |
752 | ||
0347a6ab TE |
753 | return rc; |
754 | } | |
755 | ||
756 | static int port100_send_frame_async(struct port100 *dev, struct sk_buff *out, | |
757 | struct sk_buff *in, int in_len) | |
758 | { | |
759 | int rc; | |
760 | ||
b74584c1 TE |
761 | mutex_lock(&dev->out_urb_lock); |
762 | ||
763 | /* A command cancel frame as been sent through dev->out_urb. Don't try | |
764 | * to submit a new one. | |
765 | */ | |
766 | if (dev->cmd_cancel) { | |
767 | rc = -EAGAIN; | |
768 | goto exit; | |
769 | } | |
770 | ||
0347a6ab TE |
771 | dev->out_urb->transfer_buffer = out->data; |
772 | dev->out_urb->transfer_buffer_length = out->len; | |
773 | ||
774 | dev->in_urb->transfer_buffer = in->data; | |
775 | dev->in_urb->transfer_buffer_length = in_len; | |
776 | ||
777 | print_hex_dump_debug("PORT100 TX: ", DUMP_PREFIX_NONE, 16, 1, | |
778 | out->data, out->len, false); | |
779 | ||
780 | rc = usb_submit_urb(dev->out_urb, GFP_KERNEL); | |
781 | if (rc) | |
b74584c1 | 782 | goto exit; |
0347a6ab TE |
783 | |
784 | rc = port100_submit_urb_for_ack(dev, GFP_KERNEL); | |
785 | if (rc) | |
b74584c1 | 786 | usb_unlink_urb(dev->out_urb); |
0347a6ab | 787 | |
b74584c1 TE |
788 | exit: |
789 | mutex_unlock(&dev->out_urb_lock); | |
0347a6ab | 790 | |
0347a6ab TE |
791 | return rc; |
792 | } | |
793 | ||
794 | static void port100_build_cmd_frame(struct port100 *dev, u8 cmd_code, | |
795 | struct sk_buff *skb) | |
796 | { | |
797 | /* payload is already there, just update datalen */ | |
798 | int payload_len = skb->len; | |
799 | ||
800 | skb_push(skb, PORT100_FRAME_HEADER_LEN); | |
801 | skb_put(skb, PORT100_FRAME_TAIL_LEN); | |
802 | ||
803 | port100_tx_frame_init(skb->data, cmd_code); | |
804 | port100_tx_update_payload_len(skb->data, payload_len); | |
805 | port100_tx_frame_finish(skb->data); | |
806 | } | |
807 | ||
808 | static void port100_send_async_complete(struct port100 *dev) | |
809 | { | |
810 | struct port100_cmd *cmd = dev->cmd; | |
811 | int status = cmd->status; | |
812 | ||
813 | struct sk_buff *req = cmd->req; | |
814 | struct sk_buff *resp = cmd->resp; | |
815 | ||
816 | dev_kfree_skb(req); | |
817 | ||
818 | dev->cmd = NULL; | |
819 | ||
820 | if (status < 0) { | |
821 | cmd->complete_cb(dev, cmd->complete_cb_context, | |
822 | ERR_PTR(status)); | |
823 | dev_kfree_skb(resp); | |
824 | goto done; | |
825 | } | |
826 | ||
827 | skb_put(resp, port100_rx_frame_size(resp->data)); | |
828 | skb_pull(resp, PORT100_FRAME_HEADER_LEN); | |
829 | skb_trim(resp, resp->len - PORT100_FRAME_TAIL_LEN); | |
830 | ||
831 | cmd->complete_cb(dev, cmd->complete_cb_context, resp); | |
832 | ||
833 | done: | |
834 | kfree(cmd); | |
835 | } | |
836 | ||
837 | static int port100_send_cmd_async(struct port100 *dev, u8 cmd_code, | |
838 | struct sk_buff *req, | |
839 | port100_send_async_complete_t complete_cb, | |
840 | void *complete_cb_context) | |
841 | { | |
842 | struct port100_cmd *cmd; | |
843 | struct sk_buff *resp; | |
844 | int rc; | |
845 | int resp_len = PORT100_FRAME_HEADER_LEN + | |
846 | PORT100_FRAME_MAX_PAYLOAD_LEN + | |
847 | PORT100_FRAME_TAIL_LEN; | |
848 | ||
e3e02588 TE |
849 | if (dev->cmd) { |
850 | nfc_err(&dev->interface->dev, | |
851 | "A command is still in process\n"); | |
852 | return -EBUSY; | |
853 | } | |
854 | ||
0347a6ab TE |
855 | resp = alloc_skb(resp_len, GFP_KERNEL); |
856 | if (!resp) | |
857 | return -ENOMEM; | |
858 | ||
859 | cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); | |
860 | if (!cmd) { | |
861 | dev_kfree_skb(resp); | |
862 | return -ENOMEM; | |
863 | } | |
864 | ||
865 | cmd->code = cmd_code; | |
866 | cmd->req = req; | |
867 | cmd->resp = resp; | |
868 | cmd->resp_len = resp_len; | |
869 | cmd->complete_cb = complete_cb; | |
870 | cmd->complete_cb_context = complete_cb_context; | |
871 | ||
872 | port100_build_cmd_frame(dev, cmd_code, req); | |
873 | ||
874 | dev->cmd = cmd; | |
875 | ||
876 | rc = port100_send_frame_async(dev, req, resp, resp_len); | |
877 | if (rc) { | |
878 | kfree(cmd); | |
879 | dev_kfree_skb(resp); | |
880 | dev->cmd = NULL; | |
881 | } | |
882 | ||
883 | return rc; | |
884 | } | |
885 | ||
886 | struct port100_sync_cmd_response { | |
887 | struct sk_buff *resp; | |
888 | struct completion done; | |
889 | }; | |
890 | ||
891 | static void port100_wq_cmd_complete(struct work_struct *work) | |
892 | { | |
893 | struct port100 *dev = container_of(work, struct port100, | |
894 | cmd_complete_work); | |
895 | ||
896 | port100_send_async_complete(dev); | |
897 | } | |
898 | ||
899 | static void port100_send_sync_complete(struct port100 *dev, void *_arg, | |
900 | struct sk_buff *resp) | |
901 | { | |
902 | struct port100_sync_cmd_response *arg = _arg; | |
903 | ||
904 | arg->resp = resp; | |
905 | complete(&arg->done); | |
906 | } | |
907 | ||
908 | static struct sk_buff *port100_send_cmd_sync(struct port100 *dev, u8 cmd_code, | |
909 | struct sk_buff *req) | |
910 | { | |
911 | int rc; | |
912 | struct port100_sync_cmd_response arg; | |
913 | ||
914 | init_completion(&arg.done); | |
915 | ||
916 | rc = port100_send_cmd_async(dev, cmd_code, req, | |
917 | port100_send_sync_complete, &arg); | |
918 | if (rc) { | |
919 | dev_kfree_skb(req); | |
920 | return ERR_PTR(rc); | |
921 | } | |
922 | ||
923 | wait_for_completion(&arg.done); | |
924 | ||
925 | return arg.resp; | |
926 | } | |
927 | ||
928 | static void port100_send_complete(struct urb *urb) | |
929 | { | |
930 | struct port100 *dev = urb->context; | |
931 | ||
a52bd7d2 | 932 | if (dev->cmd_cancel) { |
24971281 | 933 | complete_all(&dev->cmd_cancel_done); |
a52bd7d2 | 934 | dev->cmd_cancel = false; |
a52bd7d2 | 935 | } |
b74584c1 | 936 | |
0347a6ab TE |
937 | switch (urb->status) { |
938 | case 0: | |
939 | break; /* success */ | |
940 | case -ECONNRESET: | |
941 | case -ENOENT: | |
942 | nfc_err(&dev->interface->dev, | |
3590ebc0 | 943 | "The urb has been stopped (status %d)\n", urb->status); |
0347a6ab TE |
944 | break; |
945 | case -ESHUTDOWN: | |
946 | default: | |
3590ebc0 | 947 | nfc_err(&dev->interface->dev, "Urb failure (status %d)\n", |
0347a6ab TE |
948 | urb->status); |
949 | } | |
950 | } | |
951 | ||
562d4d59 TE |
952 | static void port100_abort_cmd(struct nfc_digital_dev *ddev) |
953 | { | |
0347a6ab TE |
954 | struct port100 *dev = nfc_digital_get_drvdata(ddev); |
955 | ||
956 | /* An ack will cancel the last issued command */ | |
957 | port100_send_ack(dev); | |
958 | ||
959 | /* cancel the urb request */ | |
960 | usb_kill_urb(dev->in_urb); | |
961 | } | |
962 | ||
963 | static struct sk_buff *port100_alloc_skb(struct port100 *dev, unsigned int size) | |
964 | { | |
965 | struct sk_buff *skb; | |
966 | ||
967 | skb = alloc_skb(dev->skb_headroom + dev->skb_tailroom + size, | |
968 | GFP_KERNEL); | |
969 | if (skb) | |
970 | skb_reserve(skb, dev->skb_headroom); | |
971 | ||
972 | return skb; | |
973 | } | |
974 | ||
975 | static int port100_set_command_type(struct port100 *dev, u8 command_type) | |
976 | { | |
977 | struct sk_buff *skb; | |
978 | struct sk_buff *resp; | |
979 | int rc; | |
980 | ||
981 | skb = port100_alloc_skb(dev, 1); | |
982 | if (!skb) | |
983 | return -ENOMEM; | |
984 | ||
634fef61 | 985 | skb_put_u8(skb, command_type); |
0347a6ab TE |
986 | |
987 | resp = port100_send_cmd_sync(dev, PORT100_CMD_SET_COMMAND_TYPE, skb); | |
988 | if (IS_ERR(resp)) | |
989 | return PTR_ERR(resp); | |
990 | ||
991 | rc = resp->data[0]; | |
992 | ||
993 | dev_kfree_skb(resp); | |
994 | ||
995 | return rc; | |
996 | } | |
997 | ||
998 | static u64 port100_get_command_type_mask(struct port100 *dev) | |
999 | { | |
1000 | struct sk_buff *skb; | |
1001 | struct sk_buff *resp; | |
1002 | u64 mask; | |
1003 | ||
1004 | skb = port100_alloc_skb(dev, 0); | |
1005 | if (!skb) | |
1006 | return -ENOMEM; | |
1007 | ||
1008 | resp = port100_send_cmd_sync(dev, PORT100_CMD_GET_COMMAND_TYPE, skb); | |
1009 | if (IS_ERR(resp)) | |
1010 | return PTR_ERR(resp); | |
1011 | ||
1012 | if (resp->len < 8) | |
1013 | mask = 0; | |
1014 | else | |
1015 | mask = be64_to_cpu(*(__be64 *)resp->data); | |
1016 | ||
1017 | dev_kfree_skb(resp); | |
1018 | ||
1019 | return mask; | |
1020 | } | |
1021 | ||
1022 | static u16 port100_get_firmware_version(struct port100 *dev) | |
1023 | { | |
1024 | struct sk_buff *skb; | |
1025 | struct sk_buff *resp; | |
1026 | u16 fw_ver; | |
1027 | ||
1028 | skb = port100_alloc_skb(dev, 0); | |
1029 | if (!skb) | |
1030 | return 0; | |
1031 | ||
1032 | resp = port100_send_cmd_sync(dev, PORT100_CMD_GET_FIRMWARE_VERSION, | |
1033 | skb); | |
1034 | if (IS_ERR(resp)) | |
1035 | return 0; | |
1036 | ||
1037 | fw_ver = le16_to_cpu(*(__le16 *)resp->data); | |
1038 | ||
1039 | dev_kfree_skb(resp); | |
1040 | ||
1041 | return fw_ver; | |
562d4d59 TE |
1042 | } |
1043 | ||
1044 | static int port100_switch_rf(struct nfc_digital_dev *ddev, bool on) | |
1045 | { | |
9f7b57f2 TE |
1046 | struct port100 *dev = nfc_digital_get_drvdata(ddev); |
1047 | struct sk_buff *skb, *resp; | |
1048 | ||
1049 | skb = port100_alloc_skb(dev, 1); | |
1050 | if (!skb) | |
1051 | return -ENOMEM; | |
1052 | ||
634fef61 | 1053 | skb_put_u8(skb, on ? 1 : 0); |
9f7b57f2 | 1054 | |
9f0c4542 TE |
1055 | /* Cancel the last command if the device is being switched off */ |
1056 | if (!on) | |
1057 | port100_abort_cmd(ddev); | |
1058 | ||
9f7b57f2 TE |
1059 | resp = port100_send_cmd_sync(dev, PORT100_CMD_SWITCH_RF, skb); |
1060 | ||
1061 | if (IS_ERR(resp)) | |
1062 | return PTR_ERR(resp); | |
1063 | ||
1064 | dev_kfree_skb(resp); | |
1065 | ||
1066 | return 0; | |
1067 | } | |
1068 | ||
1069 | static int port100_in_set_rf(struct nfc_digital_dev *ddev, u8 rf) | |
1070 | { | |
1071 | struct port100 *dev = nfc_digital_get_drvdata(ddev); | |
1072 | struct sk_buff *skb; | |
1073 | struct sk_buff *resp; | |
1074 | int rc; | |
1075 | ||
1076 | if (rf >= NFC_DIGITAL_RF_TECH_LAST) | |
1077 | return -EINVAL; | |
1078 | ||
1079 | skb = port100_alloc_skb(dev, sizeof(struct port100_in_rf_setting)); | |
1080 | if (!skb) | |
1081 | return -ENOMEM; | |
1082 | ||
59ae1d12 JB |
1083 | skb_put_data(skb, &in_rf_settings[rf], |
1084 | sizeof(struct port100_in_rf_setting)); | |
9f7b57f2 TE |
1085 | |
1086 | resp = port100_send_cmd_sync(dev, PORT100_CMD_IN_SET_RF, skb); | |
1087 | ||
1088 | if (IS_ERR(resp)) | |
1089 | return PTR_ERR(resp); | |
1090 | ||
1091 | rc = resp->data[0]; | |
1092 | ||
1093 | dev_kfree_skb(resp); | |
1094 | ||
1095 | return rc; | |
1096 | } | |
1097 | ||
1098 | static int port100_in_set_framing(struct nfc_digital_dev *ddev, int param) | |
1099 | { | |
1100 | struct port100 *dev = nfc_digital_get_drvdata(ddev); | |
1101 | struct port100_protocol *protocols; | |
1102 | struct sk_buff *skb; | |
1103 | struct sk_buff *resp; | |
1104 | int num_protocols; | |
1105 | size_t size; | |
1106 | int rc; | |
1107 | ||
1108 | if (param >= NFC_DIGITAL_FRAMING_LAST) | |
1109 | return -EINVAL; | |
1110 | ||
1111 | protocols = in_protocols[param]; | |
1112 | ||
1113 | num_protocols = 0; | |
1114 | while (protocols[num_protocols].number != PORT100_IN_PROT_END) | |
1115 | num_protocols++; | |
1116 | ||
1117 | if (!num_protocols) | |
1118 | return 0; | |
1119 | ||
1120 | size = sizeof(struct port100_protocol) * num_protocols; | |
1121 | ||
1122 | skb = port100_alloc_skb(dev, size); | |
1123 | if (!skb) | |
1124 | return -ENOMEM; | |
1125 | ||
59ae1d12 | 1126 | skb_put_data(skb, protocols, size); |
9f7b57f2 TE |
1127 | |
1128 | resp = port100_send_cmd_sync(dev, PORT100_CMD_IN_SET_PROTOCOL, skb); | |
1129 | ||
1130 | if (IS_ERR(resp)) | |
1131 | return PTR_ERR(resp); | |
1132 | ||
1133 | rc = resp->data[0]; | |
1134 | ||
1135 | dev_kfree_skb(resp); | |
1136 | ||
1137 | return rc; | |
562d4d59 TE |
1138 | } |
1139 | ||
1140 | static int port100_in_configure_hw(struct nfc_digital_dev *ddev, int type, | |
1141 | int param) | |
1142 | { | |
9f7b57f2 TE |
1143 | if (type == NFC_DIGITAL_CONFIG_RF_TECH) |
1144 | return port100_in_set_rf(ddev, param); | |
1145 | ||
1146 | if (type == NFC_DIGITAL_CONFIG_FRAMING) | |
1147 | return port100_in_set_framing(ddev, param); | |
1148 | ||
1149 | return -EINVAL; | |
1150 | } | |
1151 | ||
1152 | static void port100_in_comm_rf_complete(struct port100 *dev, void *arg, | |
1153 | struct sk_buff *resp) | |
1154 | { | |
1155 | struct port100_cb_arg *cb_arg = arg; | |
1156 | nfc_digital_cmd_complete_t cb = cb_arg->complete_cb; | |
1157 | u32 status; | |
1158 | int rc; | |
1159 | ||
1160 | if (IS_ERR(resp)) { | |
1161 | rc = PTR_ERR(resp); | |
1162 | goto exit; | |
1163 | } | |
1164 | ||
1165 | if (resp->len < 4) { | |
1166 | nfc_err(&dev->interface->dev, | |
3590ebc0 | 1167 | "Invalid packet length received\n"); |
9f7b57f2 TE |
1168 | rc = -EIO; |
1169 | goto error; | |
1170 | } | |
1171 | ||
1172 | status = le32_to_cpu(*(__le32 *)resp->data); | |
1173 | ||
1174 | skb_pull(resp, sizeof(u32)); | |
1175 | ||
1176 | if (status == PORT100_CMD_STATUS_TIMEOUT) { | |
1177 | rc = -ETIMEDOUT; | |
1178 | goto error; | |
1179 | } | |
1180 | ||
1181 | if (status != PORT100_CMD_STATUS_OK) { | |
1182 | nfc_err(&dev->interface->dev, | |
1183 | "in_comm_rf failed with status 0x%08x\n", status); | |
1184 | rc = -EIO; | |
1185 | goto error; | |
1186 | } | |
1187 | ||
1188 | /* Remove collision bits byte */ | |
1189 | skb_pull(resp, 1); | |
1190 | ||
1191 | goto exit; | |
1192 | ||
1193 | error: | |
1194 | kfree_skb(resp); | |
1195 | resp = ERR_PTR(rc); | |
1196 | ||
1197 | exit: | |
1198 | cb(dev->nfc_digital_dev, cb_arg->complete_arg, resp); | |
1199 | ||
1200 | kfree(cb_arg); | |
562d4d59 TE |
1201 | } |
1202 | ||
1203 | static int port100_in_send_cmd(struct nfc_digital_dev *ddev, | |
1204 | struct sk_buff *skb, u16 _timeout, | |
1205 | nfc_digital_cmd_complete_t cb, void *arg) | |
1206 | { | |
9f7b57f2 TE |
1207 | struct port100 *dev = nfc_digital_get_drvdata(ddev); |
1208 | struct port100_cb_arg *cb_arg; | |
1209 | __le16 timeout; | |
1210 | ||
1211 | cb_arg = kzalloc(sizeof(struct port100_cb_arg), GFP_KERNEL); | |
1212 | if (!cb_arg) | |
1213 | return -ENOMEM; | |
1214 | ||
1215 | cb_arg->complete_cb = cb; | |
1216 | cb_arg->complete_arg = arg; | |
1217 | ||
1218 | timeout = cpu_to_le16(_timeout * 10); | |
1219 | ||
1220 | memcpy(skb_push(skb, sizeof(__le16)), &timeout, sizeof(__le16)); | |
1221 | ||
1222 | return port100_send_cmd_async(dev, PORT100_CMD_IN_COMM_RF, skb, | |
1223 | port100_in_comm_rf_complete, cb_arg); | |
562d4d59 TE |
1224 | } |
1225 | ||
7227c021 TE |
1226 | static int port100_tg_set_rf(struct nfc_digital_dev *ddev, u8 rf) |
1227 | { | |
1228 | struct port100 *dev = nfc_digital_get_drvdata(ddev); | |
1229 | struct sk_buff *skb; | |
1230 | struct sk_buff *resp; | |
1231 | int rc; | |
1232 | ||
1233 | if (rf >= NFC_DIGITAL_RF_TECH_LAST) | |
1234 | return -EINVAL; | |
1235 | ||
1236 | skb = port100_alloc_skb(dev, sizeof(struct port100_tg_rf_setting)); | |
1237 | if (!skb) | |
1238 | return -ENOMEM; | |
1239 | ||
59ae1d12 JB |
1240 | skb_put_data(skb, &tg_rf_settings[rf], |
1241 | sizeof(struct port100_tg_rf_setting)); | |
7227c021 TE |
1242 | |
1243 | resp = port100_send_cmd_sync(dev, PORT100_CMD_TG_SET_RF, skb); | |
1244 | ||
1245 | if (IS_ERR(resp)) | |
1246 | return PTR_ERR(resp); | |
1247 | ||
1248 | rc = resp->data[0]; | |
1249 | ||
1250 | dev_kfree_skb(resp); | |
1251 | ||
1252 | return rc; | |
1253 | } | |
1254 | ||
1255 | static int port100_tg_set_framing(struct nfc_digital_dev *ddev, int param) | |
1256 | { | |
1257 | struct port100 *dev = nfc_digital_get_drvdata(ddev); | |
1258 | struct port100_protocol *protocols; | |
1259 | struct sk_buff *skb; | |
1260 | struct sk_buff *resp; | |
1261 | int rc; | |
1262 | int num_protocols; | |
1263 | size_t size; | |
1264 | ||
1265 | if (param >= NFC_DIGITAL_FRAMING_LAST) | |
1266 | return -EINVAL; | |
1267 | ||
1268 | protocols = tg_protocols[param]; | |
1269 | ||
1270 | num_protocols = 0; | |
1271 | while (protocols[num_protocols].number != PORT100_TG_PROT_END) | |
1272 | num_protocols++; | |
1273 | ||
1274 | if (!num_protocols) | |
1275 | return 0; | |
1276 | ||
1277 | size = sizeof(struct port100_protocol) * num_protocols; | |
1278 | ||
1279 | skb = port100_alloc_skb(dev, size); | |
1280 | if (!skb) | |
1281 | return -ENOMEM; | |
1282 | ||
59ae1d12 | 1283 | skb_put_data(skb, protocols, size); |
7227c021 TE |
1284 | |
1285 | resp = port100_send_cmd_sync(dev, PORT100_CMD_TG_SET_PROTOCOL, skb); | |
1286 | ||
1287 | if (IS_ERR(resp)) | |
1288 | return PTR_ERR(resp); | |
1289 | ||
1290 | rc = resp->data[0]; | |
1291 | ||
1292 | dev_kfree_skb(resp); | |
1293 | ||
1294 | return rc; | |
1295 | } | |
1296 | ||
562d4d59 TE |
1297 | static int port100_tg_configure_hw(struct nfc_digital_dev *ddev, int type, |
1298 | int param) | |
1299 | { | |
7227c021 TE |
1300 | if (type == NFC_DIGITAL_CONFIG_RF_TECH) |
1301 | return port100_tg_set_rf(ddev, param); | |
1302 | ||
1303 | if (type == NFC_DIGITAL_CONFIG_FRAMING) | |
1304 | return port100_tg_set_framing(ddev, param); | |
1305 | ||
1306 | return -EINVAL; | |
1307 | } | |
1308 | ||
1309 | static bool port100_tg_target_activated(struct port100 *dev, u8 tgt_activated) | |
1310 | { | |
1311 | u8 mask; | |
1312 | ||
1313 | switch (dev->cmd_type) { | |
1314 | case PORT100_CMD_TYPE_0: | |
1315 | mask = PORT100_MDAA_TGT_HAS_BEEN_ACTIVATED_MASK; | |
1316 | break; | |
1317 | case PORT100_CMD_TYPE_1: | |
1318 | mask = PORT100_MDAA_TGT_HAS_BEEN_ACTIVATED_MASK | | |
1319 | PORT100_MDAA_TGT_WAS_ACTIVATED_MASK; | |
1320 | break; | |
1321 | default: | |
3590ebc0 | 1322 | nfc_err(&dev->interface->dev, "Unknown command type\n"); |
7227c021 TE |
1323 | return false; |
1324 | } | |
1325 | ||
1326 | return ((tgt_activated & mask) == mask); | |
1327 | } | |
1328 | ||
1329 | static void port100_tg_comm_rf_complete(struct port100 *dev, void *arg, | |
1330 | struct sk_buff *resp) | |
1331 | { | |
1332 | u32 status; | |
1333 | struct port100_cb_arg *cb_arg = arg; | |
1334 | nfc_digital_cmd_complete_t cb = cb_arg->complete_cb; | |
1335 | struct port100_tg_comm_rf_res *hdr; | |
1336 | ||
1337 | if (IS_ERR(resp)) | |
1338 | goto exit; | |
1339 | ||
1340 | hdr = (struct port100_tg_comm_rf_res *)resp->data; | |
1341 | ||
1342 | status = le32_to_cpu(hdr->status); | |
1343 | ||
1344 | if (cb_arg->mdaa && | |
1345 | !port100_tg_target_activated(dev, hdr->target_activated)) { | |
1346 | kfree_skb(resp); | |
1347 | resp = ERR_PTR(-ETIMEDOUT); | |
1348 | ||
1349 | goto exit; | |
1350 | } | |
1351 | ||
1352 | skb_pull(resp, sizeof(struct port100_tg_comm_rf_res)); | |
1353 | ||
1354 | if (status != PORT100_CMD_STATUS_OK) { | |
1355 | kfree_skb(resp); | |
1356 | ||
1357 | if (status == PORT100_CMD_STATUS_TIMEOUT) | |
1358 | resp = ERR_PTR(-ETIMEDOUT); | |
1359 | else | |
1360 | resp = ERR_PTR(-EIO); | |
1361 | } | |
1362 | ||
1363 | exit: | |
1364 | cb(dev->nfc_digital_dev, cb_arg->complete_arg, resp); | |
1365 | ||
1366 | kfree(cb_arg); | |
562d4d59 TE |
1367 | } |
1368 | ||
1369 | static int port100_tg_send_cmd(struct nfc_digital_dev *ddev, | |
1370 | struct sk_buff *skb, u16 timeout, | |
1371 | nfc_digital_cmd_complete_t cb, void *arg) | |
1372 | { | |
7227c021 TE |
1373 | struct port100 *dev = nfc_digital_get_drvdata(ddev); |
1374 | struct port100_tg_comm_rf_cmd *hdr; | |
1375 | struct port100_cb_arg *cb_arg; | |
1376 | ||
1377 | cb_arg = kzalloc(sizeof(struct port100_cb_arg), GFP_KERNEL); | |
1378 | if (!cb_arg) | |
1379 | return -ENOMEM; | |
1380 | ||
1381 | cb_arg->complete_cb = cb; | |
1382 | cb_arg->complete_arg = arg; | |
1383 | ||
1384 | skb_push(skb, sizeof(struct port100_tg_comm_rf_cmd)); | |
1385 | ||
1386 | hdr = (struct port100_tg_comm_rf_cmd *)skb->data; | |
1387 | ||
1388 | memset(hdr, 0, sizeof(struct port100_tg_comm_rf_cmd)); | |
1389 | hdr->guard_time = cpu_to_le16(500); | |
1390 | hdr->send_timeout = cpu_to_le16(0xFFFF); | |
1391 | hdr->recv_timeout = cpu_to_le16(timeout); | |
1392 | ||
1393 | return port100_send_cmd_async(dev, PORT100_CMD_TG_COMM_RF, skb, | |
1394 | port100_tg_comm_rf_complete, cb_arg); | |
562d4d59 TE |
1395 | } |
1396 | ||
1397 | static int port100_listen_mdaa(struct nfc_digital_dev *ddev, | |
1398 | struct digital_tg_mdaa_params *params, | |
1399 | u16 timeout, | |
1400 | nfc_digital_cmd_complete_t cb, void *arg) | |
1401 | { | |
7227c021 TE |
1402 | struct port100 *dev = nfc_digital_get_drvdata(ddev); |
1403 | struct port100_tg_comm_rf_cmd *hdr; | |
1404 | struct port100_cb_arg *cb_arg; | |
1405 | struct sk_buff *skb; | |
1406 | int rc; | |
1407 | ||
1408 | rc = port100_tg_configure_hw(ddev, NFC_DIGITAL_CONFIG_RF_TECH, | |
1409 | NFC_DIGITAL_RF_TECH_106A); | |
1410 | if (rc) | |
1411 | return rc; | |
1412 | ||
1413 | rc = port100_tg_configure_hw(ddev, NFC_DIGITAL_CONFIG_FRAMING, | |
1414 | NFC_DIGITAL_FRAMING_NFCA_NFC_DEP); | |
1415 | if (rc) | |
1416 | return rc; | |
1417 | ||
1418 | cb_arg = kzalloc(sizeof(struct port100_cb_arg), GFP_KERNEL); | |
1419 | if (!cb_arg) | |
1420 | return -ENOMEM; | |
1421 | ||
1422 | cb_arg->complete_cb = cb; | |
1423 | cb_arg->complete_arg = arg; | |
1424 | cb_arg->mdaa = 1; | |
1425 | ||
1426 | skb = port100_alloc_skb(dev, 0); | |
1427 | if (!skb) { | |
1428 | kfree(cb_arg); | |
1429 | return -ENOMEM; | |
1430 | } | |
1431 | ||
1432 | skb_push(skb, sizeof(struct port100_tg_comm_rf_cmd)); | |
1433 | hdr = (struct port100_tg_comm_rf_cmd *)skb->data; | |
1434 | ||
1435 | memset(hdr, 0, sizeof(struct port100_tg_comm_rf_cmd)); | |
1436 | ||
1437 | hdr->guard_time = 0; | |
1438 | hdr->send_timeout = cpu_to_le16(0xFFFF); | |
1439 | hdr->mdaa = 1; | |
1440 | hdr->nfca_param[0] = (params->sens_res >> 8) & 0xFF; | |
1441 | hdr->nfca_param[1] = params->sens_res & 0xFF; | |
1442 | memcpy(hdr->nfca_param + 2, params->nfcid1, 3); | |
1443 | hdr->nfca_param[5] = params->sel_res; | |
1444 | memcpy(hdr->nfcf_param, params->nfcid2, 8); | |
1445 | hdr->nfcf_param[16] = (params->sc >> 8) & 0xFF; | |
1446 | hdr->nfcf_param[17] = params->sc & 0xFF; | |
1447 | hdr->recv_timeout = cpu_to_le16(timeout); | |
1448 | ||
1449 | return port100_send_cmd_async(dev, PORT100_CMD_TG_COMM_RF, skb, | |
1450 | port100_tg_comm_rf_complete, cb_arg); | |
562d4d59 TE |
1451 | } |
1452 | ||
1453 | static int port100_listen(struct nfc_digital_dev *ddev, u16 timeout, | |
1454 | nfc_digital_cmd_complete_t cb, void *arg) | |
1455 | { | |
7227c021 TE |
1456 | struct port100 *dev = nfc_digital_get_drvdata(ddev); |
1457 | struct sk_buff *skb; | |
1458 | ||
1459 | skb = port100_alloc_skb(dev, 0); | |
1460 | if (!skb) | |
1461 | return -ENOMEM; | |
1462 | ||
1463 | return port100_tg_send_cmd(ddev, skb, timeout, cb, arg); | |
562d4d59 TE |
1464 | } |
1465 | ||
1466 | static struct nfc_digital_ops port100_digital_ops = { | |
1467 | .in_configure_hw = port100_in_configure_hw, | |
1468 | .in_send_cmd = port100_in_send_cmd, | |
1469 | ||
1470 | .tg_listen_mdaa = port100_listen_mdaa, | |
1471 | .tg_listen = port100_listen, | |
1472 | .tg_configure_hw = port100_tg_configure_hw, | |
1473 | .tg_send_cmd = port100_tg_send_cmd, | |
1474 | ||
1475 | .switch_rf = port100_switch_rf, | |
1476 | .abort_cmd = port100_abort_cmd, | |
1477 | }; | |
1478 | ||
1479 | static const struct usb_device_id port100_table[] = { | |
9728ee92 OH |
1480 | { USB_DEVICE(SONY_VENDOR_ID, RCS380S_PRODUCT_ID), }, |
1481 | { USB_DEVICE(SONY_VENDOR_ID, RCS380P_PRODUCT_ID), }, | |
562d4d59 TE |
1482 | { } |
1483 | }; | |
1484 | MODULE_DEVICE_TABLE(usb, port100_table); | |
1485 | ||
1486 | static int port100_probe(struct usb_interface *interface, | |
1487 | const struct usb_device_id *id) | |
1488 | { | |
1489 | struct port100 *dev; | |
1490 | int rc; | |
0347a6ab TE |
1491 | struct usb_host_interface *iface_desc; |
1492 | struct usb_endpoint_descriptor *endpoint; | |
1493 | int in_endpoint; | |
1494 | int out_endpoint; | |
1495 | u16 fw_version; | |
1496 | u64 cmd_type_mask; | |
1497 | int i; | |
562d4d59 TE |
1498 | |
1499 | dev = devm_kzalloc(&interface->dev, sizeof(struct port100), GFP_KERNEL); | |
1500 | if (!dev) | |
1501 | return -ENOMEM; | |
1502 | ||
b74584c1 | 1503 | mutex_init(&dev->out_urb_lock); |
562d4d59 TE |
1504 | dev->udev = usb_get_dev(interface_to_usbdev(interface)); |
1505 | dev->interface = interface; | |
1506 | usb_set_intfdata(interface, dev); | |
1507 | ||
0347a6ab TE |
1508 | in_endpoint = out_endpoint = 0; |
1509 | iface_desc = interface->cur_altsetting; | |
1510 | for (i = 0; i < iface_desc->desc.bNumEndpoints; ++i) { | |
1511 | endpoint = &iface_desc->endpoint[i].desc; | |
1512 | ||
1513 | if (!in_endpoint && usb_endpoint_is_bulk_in(endpoint)) | |
1514 | in_endpoint = endpoint->bEndpointAddress; | |
1515 | ||
1516 | if (!out_endpoint && usb_endpoint_is_bulk_out(endpoint)) | |
1517 | out_endpoint = endpoint->bEndpointAddress; | |
1518 | } | |
1519 | ||
1520 | if (!in_endpoint || !out_endpoint) { | |
1521 | nfc_err(&interface->dev, | |
1522 | "Could not find bulk-in or bulk-out endpoint\n"); | |
1523 | rc = -ENODEV; | |
1524 | goto error; | |
1525 | } | |
1526 | ||
1527 | dev->in_urb = usb_alloc_urb(0, GFP_KERNEL); | |
1528 | dev->out_urb = usb_alloc_urb(0, GFP_KERNEL); | |
1529 | ||
1530 | if (!dev->in_urb || !dev->out_urb) { | |
1531 | nfc_err(&interface->dev, "Could not allocate USB URBs\n"); | |
1532 | rc = -ENOMEM; | |
1533 | goto error; | |
1534 | } | |
1535 | ||
1536 | usb_fill_bulk_urb(dev->in_urb, dev->udev, | |
1537 | usb_rcvbulkpipe(dev->udev, in_endpoint), | |
1538 | NULL, 0, NULL, dev); | |
1539 | usb_fill_bulk_urb(dev->out_urb, dev->udev, | |
1540 | usb_sndbulkpipe(dev->udev, out_endpoint), | |
1541 | NULL, 0, port100_send_complete, dev); | |
0ada0768 | 1542 | dev->out_urb->transfer_flags = URB_ZERO_PACKET; |
0347a6ab TE |
1543 | |
1544 | dev->skb_headroom = PORT100_FRAME_HEADER_LEN + | |
1545 | PORT100_COMM_RF_HEAD_MAX_LEN; | |
1546 | dev->skb_tailroom = PORT100_FRAME_TAIL_LEN; | |
1547 | ||
24971281 | 1548 | init_completion(&dev->cmd_cancel_done); |
0347a6ab TE |
1549 | INIT_WORK(&dev->cmd_complete_work, port100_wq_cmd_complete); |
1550 | ||
1551 | /* The first thing to do with the Port-100 is to set the command type | |
1552 | * to be used. If supported we use command type 1. 0 otherwise. | |
1553 | */ | |
1554 | cmd_type_mask = port100_get_command_type_mask(dev); | |
1555 | if (!cmd_type_mask) { | |
1556 | nfc_err(&interface->dev, | |
3590ebc0 | 1557 | "Could not get supported command types\n"); |
0347a6ab TE |
1558 | rc = -ENODEV; |
1559 | goto error; | |
1560 | } | |
1561 | ||
1562 | if (PORT100_CMD_TYPE_IS_SUPPORTED(cmd_type_mask, PORT100_CMD_TYPE_1)) | |
1563 | dev->cmd_type = PORT100_CMD_TYPE_1; | |
1564 | else | |
1565 | dev->cmd_type = PORT100_CMD_TYPE_0; | |
1566 | ||
1567 | rc = port100_set_command_type(dev, dev->cmd_type); | |
1568 | if (rc) { | |
1569 | nfc_err(&interface->dev, | |
3590ebc0 | 1570 | "The device does not support command type %u\n", |
0347a6ab TE |
1571 | dev->cmd_type); |
1572 | goto error; | |
1573 | } | |
1574 | ||
1575 | fw_version = port100_get_firmware_version(dev); | |
1576 | if (!fw_version) | |
1577 | nfc_err(&interface->dev, | |
3590ebc0 | 1578 | "Could not get device firmware version\n"); |
0347a6ab TE |
1579 | |
1580 | nfc_info(&interface->dev, | |
1581 | "Sony NFC Port-100 Series attached (firmware v%x.%02x)\n", | |
1582 | (fw_version & 0xFF00) >> 8, fw_version & 0xFF); | |
562d4d59 TE |
1583 | |
1584 | dev->nfc_digital_dev = nfc_digital_allocate_device(&port100_digital_ops, | |
1585 | PORT100_PROTOCOLS, | |
1586 | PORT100_CAPABILITIES, | |
1587 | dev->skb_headroom, | |
1588 | dev->skb_tailroom); | |
1589 | if (!dev->nfc_digital_dev) { | |
1590 | nfc_err(&interface->dev, | |
3590ebc0 | 1591 | "Could not allocate nfc_digital_dev\n"); |
562d4d59 TE |
1592 | rc = -ENOMEM; |
1593 | goto error; | |
1594 | } | |
1595 | ||
1596 | nfc_digital_set_parent_dev(dev->nfc_digital_dev, &interface->dev); | |
1597 | nfc_digital_set_drvdata(dev->nfc_digital_dev, dev); | |
1598 | ||
1599 | rc = nfc_digital_register_device(dev->nfc_digital_dev); | |
1600 | if (rc) { | |
1601 | nfc_err(&interface->dev, | |
3590ebc0 | 1602 | "Could not register digital device\n"); |
562d4d59 TE |
1603 | goto free_nfc_dev; |
1604 | } | |
1605 | ||
1606 | return 0; | |
1607 | ||
1608 | free_nfc_dev: | |
1609 | nfc_digital_free_device(dev->nfc_digital_dev); | |
1610 | ||
1611 | error: | |
0347a6ab TE |
1612 | usb_free_urb(dev->in_urb); |
1613 | usb_free_urb(dev->out_urb); | |
1614 | usb_put_dev(dev->udev); | |
1615 | ||
562d4d59 TE |
1616 | return rc; |
1617 | } | |
1618 | ||
1619 | static void port100_disconnect(struct usb_interface *interface) | |
1620 | { | |
1621 | struct port100 *dev; | |
1622 | ||
1623 | dev = usb_get_intfdata(interface); | |
1624 | usb_set_intfdata(interface, NULL); | |
1625 | ||
1626 | nfc_digital_unregister_device(dev->nfc_digital_dev); | |
1627 | nfc_digital_free_device(dev->nfc_digital_dev); | |
1628 | ||
0347a6ab TE |
1629 | usb_kill_urb(dev->in_urb); |
1630 | usb_kill_urb(dev->out_urb); | |
1631 | ||
1632 | usb_free_urb(dev->in_urb); | |
1633 | usb_free_urb(dev->out_urb); | |
c36aeba8 | 1634 | usb_put_dev(dev->udev); |
0347a6ab TE |
1635 | |
1636 | kfree(dev->cmd); | |
1637 | ||
3590ebc0 | 1638 | nfc_info(&interface->dev, "Sony Port-100 NFC device disconnected\n"); |
562d4d59 TE |
1639 | } |
1640 | ||
1641 | static struct usb_driver port100_driver = { | |
1642 | .name = "port100", | |
1643 | .probe = port100_probe, | |
1644 | .disconnect = port100_disconnect, | |
1645 | .id_table = port100_table, | |
1646 | }; | |
1647 | ||
1648 | module_usb_driver(port100_driver); | |
1649 | ||
1650 | MODULE_DESCRIPTION("NFC Port-100 series usb driver ver " VERSION); | |
1651 | MODULE_VERSION(VERSION); | |
1652 | MODULE_LICENSE("GPL"); |