1 // SPDX-License-Identifier: GPL-2.0-only
3 * HCI based Driver for Inside Secure microread NFC Chip
5 * Copyright (C) 2013 Intel Corporation. All rights reserved.
8 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
10 #include <linux/module.h>
11 #include <linux/delay.h>
12 #include <linux/slab.h>
13 #include <linux/crc-ccitt.h>
15 #include <linux/nfc.h>
16 #include <net/nfc/nfc.h>
17 #include <net/nfc/hci.h>
18 #include <net/nfc/llc.h>
20 #include "microread.h"
22 /* Proprietary gates, events, commands and registers */
24 #define MICROREAD_GATE_ID_ADM NFC_HCI_ADMIN_GATE
25 #define MICROREAD_GATE_ID_MGT 0x01
26 #define MICROREAD_GATE_ID_OS 0x02
27 #define MICROREAD_GATE_ID_TESTRF 0x03
28 #define MICROREAD_GATE_ID_LOOPBACK NFC_HCI_LOOPBACK_GATE
29 #define MICROREAD_GATE_ID_IDT NFC_HCI_ID_MGMT_GATE
30 #define MICROREAD_GATE_ID_LMS NFC_HCI_LINK_MGMT_GATE
33 #define MICROREAD_GATE_ID_MREAD_GEN 0x10
34 #define MICROREAD_GATE_ID_MREAD_ISO_B NFC_HCI_RF_READER_B_GATE
35 #define MICROREAD_GATE_ID_MREAD_NFC_T1 0x12
36 #define MICROREAD_GATE_ID_MREAD_ISO_A NFC_HCI_RF_READER_A_GATE
37 #define MICROREAD_GATE_ID_MREAD_NFC_T3 0x14
38 #define MICROREAD_GATE_ID_MREAD_ISO_15_3 0x15
39 #define MICROREAD_GATE_ID_MREAD_ISO_15_2 0x16
40 #define MICROREAD_GATE_ID_MREAD_ISO_B_3 0x17
41 #define MICROREAD_GATE_ID_MREAD_BPRIME 0x18
42 #define MICROREAD_GATE_ID_MREAD_ISO_A_3 0x19
45 #define MICROREAD_GATE_ID_MCARD_GEN 0x20
46 #define MICROREAD_GATE_ID_MCARD_ISO_B 0x21
47 #define MICROREAD_GATE_ID_MCARD_BPRIME 0x22
48 #define MICROREAD_GATE_ID_MCARD_ISO_A 0x23
49 #define MICROREAD_GATE_ID_MCARD_NFC_T3 0x24
50 #define MICROREAD_GATE_ID_MCARD_ISO_15_3 0x25
51 #define MICROREAD_GATE_ID_MCARD_ISO_15_2 0x26
52 #define MICROREAD_GATE_ID_MCARD_ISO_B_2 0x27
53 #define MICROREAD_GATE_ID_MCARD_ISO_CUSTOM 0x28
54 #define MICROREAD_GATE_ID_SECURE_ELEMENT 0x2F
57 #define MICROREAD_GATE_ID_P2P_GEN 0x30
58 #define MICROREAD_GATE_ID_P2P_TARGET 0x31
59 #define MICROREAD_PAR_P2P_TARGET_MODE 0x01
60 #define MICROREAD_PAR_P2P_TARGET_GT 0x04
61 #define MICROREAD_GATE_ID_P2P_INITIATOR 0x32
62 #define MICROREAD_PAR_P2P_INITIATOR_GI 0x01
63 #define MICROREAD_PAR_P2P_INITIATOR_GT 0x03
65 /* Those pipes are created/opened by default in the chip */
66 #define MICROREAD_PIPE_ID_LMS 0x00
67 #define MICROREAD_PIPE_ID_ADMIN 0x01
68 #define MICROREAD_PIPE_ID_MGT 0x02
69 #define MICROREAD_PIPE_ID_OS 0x03
70 #define MICROREAD_PIPE_ID_HDS_LOOPBACK 0x04
71 #define MICROREAD_PIPE_ID_HDS_IDT 0x05
72 #define MICROREAD_PIPE_ID_HDS_MCARD_ISO_B 0x08
73 #define MICROREAD_PIPE_ID_HDS_MCARD_ISO_BPRIME 0x09
74 #define MICROREAD_PIPE_ID_HDS_MCARD_ISO_A 0x0A
75 #define MICROREAD_PIPE_ID_HDS_MCARD_ISO_15_3 0x0B
76 #define MICROREAD_PIPE_ID_HDS_MCARD_ISO_15_2 0x0C
77 #define MICROREAD_PIPE_ID_HDS_MCARD_NFC_T3 0x0D
78 #define MICROREAD_PIPE_ID_HDS_MCARD_ISO_B_2 0x0E
79 #define MICROREAD_PIPE_ID_HDS_MCARD_CUSTOM 0x0F
80 #define MICROREAD_PIPE_ID_HDS_MREAD_ISO_B 0x10
81 #define MICROREAD_PIPE_ID_HDS_MREAD_NFC_T1 0x11
82 #define MICROREAD_PIPE_ID_HDS_MREAD_ISO_A 0x12
83 #define MICROREAD_PIPE_ID_HDS_MREAD_ISO_15_3 0x13
84 #define MICROREAD_PIPE_ID_HDS_MREAD_ISO_15_2 0x14
85 #define MICROREAD_PIPE_ID_HDS_MREAD_NFC_T3 0x15
86 #define MICROREAD_PIPE_ID_HDS_MREAD_ISO_B_3 0x16
87 #define MICROREAD_PIPE_ID_HDS_MREAD_BPRIME 0x17
88 #define MICROREAD_PIPE_ID_HDS_MREAD_ISO_A_3 0x18
89 #define MICROREAD_PIPE_ID_HDS_MREAD_GEN 0x1B
90 #define MICROREAD_PIPE_ID_HDS_STACKED_ELEMENT 0x1C
91 #define MICROREAD_PIPE_ID_HDS_INSTANCES 0x1D
92 #define MICROREAD_PIPE_ID_HDS_TESTRF 0x1E
93 #define MICROREAD_PIPE_ID_HDS_P2P_TARGET 0x1F
94 #define MICROREAD_PIPE_ID_HDS_P2P_INITIATOR 0x20
97 #define MICROREAD_EVT_MREAD_DISCOVERY_OCCURED NFC_HCI_EVT_TARGET_DISCOVERED
98 #define MICROREAD_EVT_MREAD_CARD_FOUND 0x3D
99 #define MICROREAD_EMCF_A_ATQA 0
100 #define MICROREAD_EMCF_A_SAK 2
101 #define MICROREAD_EMCF_A_LEN 3
102 #define MICROREAD_EMCF_A_UID 4
103 #define MICROREAD_EMCF_A3_ATQA 0
104 #define MICROREAD_EMCF_A3_SAK 2
105 #define MICROREAD_EMCF_A3_LEN 3
106 #define MICROREAD_EMCF_A3_UID 4
107 #define MICROREAD_EMCF_B_UID 0
108 #define MICROREAD_EMCF_T1_ATQA 0
109 #define MICROREAD_EMCF_T1_UID 4
110 #define MICROREAD_EMCF_T3_UID 0
111 #define MICROREAD_EVT_MREAD_DISCOVERY_START NFC_HCI_EVT_READER_REQUESTED
112 #define MICROREAD_EVT_MREAD_DISCOVERY_START_SOME 0x3E
113 #define MICROREAD_EVT_MREAD_DISCOVERY_STOP NFC_HCI_EVT_END_OPERATION
114 #define MICROREAD_EVT_MREAD_SIM_REQUESTS 0x3F
115 #define MICROREAD_EVT_MCARD_EXCHANGE NFC_HCI_EVT_TARGET_DISCOVERED
116 #define MICROREAD_EVT_P2P_INITIATOR_EXCHANGE_TO_RF 0x20
117 #define MICROREAD_EVT_P2P_INITIATOR_EXCHANGE_FROM_RF 0x21
118 #define MICROREAD_EVT_MCARD_FIELD_ON 0x11
119 #define MICROREAD_EVT_P2P_TARGET_ACTIVATED 0x13
120 #define MICROREAD_EVT_P2P_TARGET_DEACTIVATED 0x12
121 #define MICROREAD_EVT_MCARD_FIELD_OFF 0x14
124 #define MICROREAD_CMD_MREAD_EXCHANGE 0x10
125 #define MICROREAD_CMD_MREAD_SUBSCRIBE 0x3F
128 #define MICROREAD_ELT_ID_HDS NFC_HCI_TERMINAL_HOST_ID
129 #define MICROREAD_ELT_ID_SIM NFC_HCI_UICC_HOST_ID
130 #define MICROREAD_ELT_ID_SE1 0x03
131 #define MICROREAD_ELT_ID_SE2 0x04
132 #define MICROREAD_ELT_ID_SE3 0x05
134 static struct nfc_hci_gate microread_gates[] = {
135 {MICROREAD_GATE_ID_ADM, MICROREAD_PIPE_ID_ADMIN},
136 {MICROREAD_GATE_ID_LOOPBACK, MICROREAD_PIPE_ID_HDS_LOOPBACK},
137 {MICROREAD_GATE_ID_IDT, MICROREAD_PIPE_ID_HDS_IDT},
138 {MICROREAD_GATE_ID_LMS, MICROREAD_PIPE_ID_LMS},
139 {MICROREAD_GATE_ID_MREAD_ISO_B, MICROREAD_PIPE_ID_HDS_MREAD_ISO_B},
140 {MICROREAD_GATE_ID_MREAD_ISO_A, MICROREAD_PIPE_ID_HDS_MREAD_ISO_A},
141 {MICROREAD_GATE_ID_MREAD_ISO_A_3, MICROREAD_PIPE_ID_HDS_MREAD_ISO_A_3},
142 {MICROREAD_GATE_ID_MGT, MICROREAD_PIPE_ID_MGT},
143 {MICROREAD_GATE_ID_OS, MICROREAD_PIPE_ID_OS},
144 {MICROREAD_GATE_ID_MREAD_NFC_T1, MICROREAD_PIPE_ID_HDS_MREAD_NFC_T1},
145 {MICROREAD_GATE_ID_MREAD_NFC_T3, MICROREAD_PIPE_ID_HDS_MREAD_NFC_T3},
146 {MICROREAD_GATE_ID_P2P_TARGET, MICROREAD_PIPE_ID_HDS_P2P_TARGET},
147 {MICROREAD_GATE_ID_P2P_INITIATOR, MICROREAD_PIPE_ID_HDS_P2P_INITIATOR}
150 /* Largest headroom needed for outgoing custom commands */
151 #define MICROREAD_CMDS_HEADROOM 2
152 #define MICROREAD_CMD_TAILROOM 2
154 struct microread_info {
155 struct nfc_phy_ops *phy_ops;
158 struct nfc_hci_dev *hdev;
161 data_exchange_cb_t async_cb;
162 void *async_cb_context;
165 static int microread_open(struct nfc_hci_dev *hdev)
167 struct microread_info *info = nfc_hci_get_clientdata(hdev);
169 return info->phy_ops->enable(info->phy_id);
172 static void microread_close(struct nfc_hci_dev *hdev)
174 struct microread_info *info = nfc_hci_get_clientdata(hdev);
176 info->phy_ops->disable(info->phy_id);
179 static int microread_hci_ready(struct nfc_hci_dev *hdev)
185 r = nfc_hci_send_cmd(hdev, MICROREAD_GATE_ID_MREAD_ISO_A,
186 MICROREAD_CMD_MREAD_SUBSCRIBE, param, 1, NULL);
190 r = nfc_hci_send_cmd(hdev, MICROREAD_GATE_ID_MREAD_ISO_A_3,
191 MICROREAD_CMD_MREAD_SUBSCRIBE, NULL, 0, NULL);
198 r = nfc_hci_send_cmd(hdev, MICROREAD_GATE_ID_MREAD_ISO_B,
199 MICROREAD_CMD_MREAD_SUBSCRIBE, param, 3, NULL);
203 r = nfc_hci_send_cmd(hdev, MICROREAD_GATE_ID_MREAD_NFC_T1,
204 MICROREAD_CMD_MREAD_SUBSCRIBE, NULL, 0, NULL);
212 r = nfc_hci_send_cmd(hdev, MICROREAD_GATE_ID_MREAD_NFC_T3,
213 MICROREAD_CMD_MREAD_SUBSCRIBE, param, 4, NULL);
218 static int microread_xmit(struct nfc_hci_dev *hdev, struct sk_buff *skb)
220 struct microread_info *info = nfc_hci_get_clientdata(hdev);
222 return info->phy_ops->write(info->phy_id, skb);
225 static int microread_start_poll(struct nfc_hci_dev *hdev,
226 u32 im_protocols, u32 tm_protocols)
236 if (im_protocols & NFC_PROTO_ISO14443_MASK)
237 param[0] |= (1 << 2);
239 if (im_protocols & NFC_PROTO_ISO14443_B_MASK)
242 if (im_protocols & NFC_PROTO_MIFARE_MASK)
245 if (im_protocols & NFC_PROTO_JEWEL_MASK)
246 param[0] |= (1 << 1);
248 if (im_protocols & NFC_PROTO_FELICA_MASK)
249 param[0] |= (1 << 5);
251 if (im_protocols & NFC_PROTO_NFC_DEP_MASK)
252 param[1] |= (1 << 1);
254 if ((im_protocols | tm_protocols) & NFC_PROTO_NFC_DEP_MASK) {
255 hdev->gb = nfc_get_local_general_bytes(hdev->ndev,
257 if (hdev->gb == NULL || hdev->gb_len == 0) {
258 im_protocols &= ~NFC_PROTO_NFC_DEP_MASK;
259 tm_protocols &= ~NFC_PROTO_NFC_DEP_MASK;
263 r = nfc_hci_send_event(hdev, MICROREAD_GATE_ID_MREAD_ISO_A,
264 MICROREAD_EVT_MREAD_DISCOVERY_STOP, NULL, 0);
269 r = nfc_hci_set_param(hdev, MICROREAD_GATE_ID_P2P_TARGET,
270 MICROREAD_PAR_P2P_TARGET_MODE, &mode, 1);
274 if (im_protocols & NFC_PROTO_NFC_DEP_MASK) {
275 r = nfc_hci_set_param(hdev, MICROREAD_GATE_ID_P2P_INITIATOR,
276 MICROREAD_PAR_P2P_INITIATOR_GI,
277 hdev->gb, hdev->gb_len);
282 if (tm_protocols & NFC_PROTO_NFC_DEP_MASK) {
283 r = nfc_hci_set_param(hdev, MICROREAD_GATE_ID_P2P_TARGET,
284 MICROREAD_PAR_P2P_TARGET_GT,
285 hdev->gb, hdev->gb_len);
290 r = nfc_hci_set_param(hdev, MICROREAD_GATE_ID_P2P_TARGET,
291 MICROREAD_PAR_P2P_TARGET_MODE, &mode, 1);
296 return nfc_hci_send_event(hdev, MICROREAD_GATE_ID_MREAD_ISO_A,
297 MICROREAD_EVT_MREAD_DISCOVERY_START_SOME,
301 static int microread_dep_link_up(struct nfc_hci_dev *hdev,
302 struct nfc_target *target, u8 comm_mode,
303 u8 *gb, size_t gb_len)
305 struct sk_buff *rgb_skb = NULL;
308 r = nfc_hci_get_param(hdev, target->hci_reader_gate,
309 MICROREAD_PAR_P2P_INITIATOR_GT, &rgb_skb);
313 if (rgb_skb->len == 0 || rgb_skb->len > NFC_GB_MAXSIZE) {
318 r = nfc_set_remote_general_bytes(hdev->ndev, rgb_skb->data,
321 r = nfc_dep_link_is_up(hdev->ndev, target->idx, comm_mode,
329 static int microread_dep_link_down(struct nfc_hci_dev *hdev)
331 return nfc_hci_send_event(hdev, MICROREAD_GATE_ID_P2P_INITIATOR,
332 MICROREAD_EVT_MREAD_DISCOVERY_STOP, NULL, 0);
335 static int microread_target_from_gate(struct nfc_hci_dev *hdev, u8 gate,
336 struct nfc_target *target)
339 case MICROREAD_GATE_ID_P2P_INITIATOR:
340 target->supported_protocols = NFC_PROTO_NFC_DEP_MASK;
349 static int microread_complete_target_discovered(struct nfc_hci_dev *hdev,
351 struct nfc_target *target)
356 #define MICROREAD_CB_TYPE_READER_ALL 1
358 static void microread_im_transceive_cb(void *context, struct sk_buff *skb,
361 struct microread_info *info = context;
363 switch (info->async_cb_type) {
364 case MICROREAD_CB_TYPE_READER_ALL:
369 info->async_cb(info->async_cb_context, NULL,
374 if (skb->data[skb->len - 1] != 0) {
375 err = nfc_hci_result_to_errno(
376 skb->data[skb->len - 1]);
378 info->async_cb(info->async_cb_context, NULL,
383 skb_trim(skb, skb->len - 1); /* RF Error ind. */
385 info->async_cb(info->async_cb_context, skb, err);
396 * <= 0: driver handled the data exchange
397 * 1: driver doesn't especially handle, please do standard processing
399 static int microread_im_transceive(struct nfc_hci_dev *hdev,
400 struct nfc_target *target,
401 struct sk_buff *skb, data_exchange_cb_t cb,
404 struct microread_info *info = nfc_hci_get_clientdata(hdev);
408 pr_info("data exchange to gate 0x%x\n", target->hci_reader_gate);
410 if (target->hci_reader_gate == MICROREAD_GATE_ID_P2P_INITIATOR) {
411 *(u8 *)skb_push(skb, 1) = 0;
413 return nfc_hci_send_event(hdev, target->hci_reader_gate,
414 MICROREAD_EVT_P2P_INITIATOR_EXCHANGE_TO_RF,
415 skb->data, skb->len);
418 switch (target->hci_reader_gate) {
419 case MICROREAD_GATE_ID_MREAD_ISO_A:
422 case MICROREAD_GATE_ID_MREAD_ISO_A_3:
425 case MICROREAD_GATE_ID_MREAD_ISO_B:
428 case MICROREAD_GATE_ID_MREAD_NFC_T1:
431 crc = crc_ccitt(0xffff, skb->data, skb->len);
433 skb_put_u8(skb, crc & 0xff);
434 skb_put_u8(skb, crc >> 8);
436 case MICROREAD_GATE_ID_MREAD_NFC_T3:
440 pr_info("Abort im_transceive to invalid gate 0x%x\n",
441 target->hci_reader_gate);
445 *(u8 *)skb_push(skb, 1) = control_bits;
447 info->async_cb_type = MICROREAD_CB_TYPE_READER_ALL;
449 info->async_cb_context = cb_context;
451 return nfc_hci_send_cmd_async(hdev, target->hci_reader_gate,
452 MICROREAD_CMD_MREAD_EXCHANGE,
454 microread_im_transceive_cb, info);
457 static int microread_tm_send(struct nfc_hci_dev *hdev, struct sk_buff *skb)
461 r = nfc_hci_send_event(hdev, MICROREAD_GATE_ID_P2P_TARGET,
462 MICROREAD_EVT_MCARD_EXCHANGE,
463 skb->data, skb->len);
470 static void microread_target_discovered(struct nfc_hci_dev *hdev, u8 gate,
473 struct nfc_target *targets;
476 pr_info("target discovered to gate 0x%x\n", gate);
478 targets = kzalloc(sizeof(struct nfc_target), GFP_KERNEL);
479 if (targets == NULL) {
484 targets->hci_reader_gate = gate;
487 case MICROREAD_GATE_ID_MREAD_ISO_A:
488 targets->supported_protocols =
489 nfc_hci_sak_to_protocol(skb->data[MICROREAD_EMCF_A_SAK]);
491 be16_to_cpu(*(u16 *)&skb->data[MICROREAD_EMCF_A_ATQA]);
492 targets->sel_res = skb->data[MICROREAD_EMCF_A_SAK];
493 targets->nfcid1_len = skb->data[MICROREAD_EMCF_A_LEN];
494 if (targets->nfcid1_len > sizeof(targets->nfcid1)) {
498 memcpy(targets->nfcid1, &skb->data[MICROREAD_EMCF_A_UID],
499 targets->nfcid1_len);
501 case MICROREAD_GATE_ID_MREAD_ISO_A_3:
502 targets->supported_protocols =
503 nfc_hci_sak_to_protocol(skb->data[MICROREAD_EMCF_A3_SAK]);
505 be16_to_cpu(*(u16 *)&skb->data[MICROREAD_EMCF_A3_ATQA]);
506 targets->sel_res = skb->data[MICROREAD_EMCF_A3_SAK];
507 targets->nfcid1_len = skb->data[MICROREAD_EMCF_A3_LEN];
508 if (targets->nfcid1_len > sizeof(targets->nfcid1)) {
512 memcpy(targets->nfcid1, &skb->data[MICROREAD_EMCF_A3_UID],
513 targets->nfcid1_len);
515 case MICROREAD_GATE_ID_MREAD_ISO_B:
516 targets->supported_protocols = NFC_PROTO_ISO14443_B_MASK;
517 memcpy(targets->nfcid1, &skb->data[MICROREAD_EMCF_B_UID], 4);
518 targets->nfcid1_len = 4;
520 case MICROREAD_GATE_ID_MREAD_NFC_T1:
521 targets->supported_protocols = NFC_PROTO_JEWEL_MASK;
523 le16_to_cpu(*(u16 *)&skb->data[MICROREAD_EMCF_T1_ATQA]);
524 memcpy(targets->nfcid1, &skb->data[MICROREAD_EMCF_T1_UID], 4);
525 targets->nfcid1_len = 4;
527 case MICROREAD_GATE_ID_MREAD_NFC_T3:
528 targets->supported_protocols = NFC_PROTO_FELICA_MASK;
529 memcpy(targets->nfcid1, &skb->data[MICROREAD_EMCF_T3_UID], 8);
530 targets->nfcid1_len = 8;
533 pr_info("discard target discovered to gate 0x%x\n", gate);
537 r = nfc_targets_found(hdev->ndev, targets, 1);
546 pr_err("Failed to handle discovered target err=%d\n", r);
549 static int microread_event_received(struct nfc_hci_dev *hdev, u8 pipe,
550 u8 event, struct sk_buff *skb)
553 u8 gate = hdev->pipes[pipe].gate;
556 pr_info("Microread received event 0x%x to gate 0x%x\n", event, gate);
559 case MICROREAD_EVT_MREAD_CARD_FOUND:
560 microread_target_discovered(hdev, gate, skb);
563 case MICROREAD_EVT_P2P_INITIATOR_EXCHANGE_FROM_RF:
569 if (skb->data[skb->len - 1]) {
574 skb_trim(skb, skb->len - 1);
576 r = nfc_tm_data_received(hdev->ndev, skb);
579 case MICROREAD_EVT_MCARD_FIELD_ON:
580 case MICROREAD_EVT_MCARD_FIELD_OFF:
584 case MICROREAD_EVT_P2P_TARGET_ACTIVATED:
585 r = nfc_tm_activated(hdev->ndev, NFC_PROTO_NFC_DEP_MASK,
586 NFC_COMM_PASSIVE, skb->data,
592 case MICROREAD_EVT_MCARD_EXCHANGE:
598 if (skb->data[skb->len-1]) {
603 skb_trim(skb, skb->len - 1);
605 r = nfc_tm_data_received(hdev->ndev, skb);
608 case MICROREAD_EVT_P2P_TARGET_DEACTIVATED:
612 r = nfc_hci_set_param(hdev, MICROREAD_GATE_ID_P2P_TARGET,
613 MICROREAD_PAR_P2P_TARGET_MODE, &mode, 1);
617 r = nfc_hci_send_event(hdev, gate,
618 MICROREAD_EVT_MREAD_DISCOVERY_STOP, NULL,
629 static struct nfc_hci_ops microread_hci_ops = {
630 .open = microread_open,
631 .close = microread_close,
632 .hci_ready = microread_hci_ready,
633 .xmit = microread_xmit,
634 .start_poll = microread_start_poll,
635 .dep_link_up = microread_dep_link_up,
636 .dep_link_down = microread_dep_link_down,
637 .target_from_gate = microread_target_from_gate,
638 .complete_target_discovered = microread_complete_target_discovered,
639 .im_transceive = microread_im_transceive,
640 .tm_send = microread_tm_send,
641 .check_presence = NULL,
642 .event_received = microread_event_received,
645 int microread_probe(void *phy_id, struct nfc_phy_ops *phy_ops, char *llc_name,
646 int phy_headroom, int phy_tailroom, int phy_payload,
647 struct nfc_hci_dev **hdev)
649 struct microread_info *info;
650 unsigned long quirks = 0;
652 struct nfc_hci_init_data init_data;
655 info = kzalloc(sizeof(struct microread_info), GFP_KERNEL);
661 info->phy_ops = phy_ops;
662 info->phy_id = phy_id;
664 init_data.gate_count = ARRAY_SIZE(microread_gates);
665 memcpy(init_data.gates, microread_gates, sizeof(microread_gates));
667 strcpy(init_data.session_id, "MICROREA");
669 set_bit(NFC_HCI_QUIRK_SHORT_CLEAR, &quirks);
671 protocols = NFC_PROTO_JEWEL_MASK |
672 NFC_PROTO_MIFARE_MASK |
673 NFC_PROTO_FELICA_MASK |
674 NFC_PROTO_ISO14443_MASK |
675 NFC_PROTO_ISO14443_B_MASK |
676 NFC_PROTO_NFC_DEP_MASK;
678 info->hdev = nfc_hci_allocate_device(µread_hci_ops, &init_data,
679 quirks, protocols, llc_name,
681 MICROREAD_CMDS_HEADROOM,
683 MICROREAD_CMD_TAILROOM,
686 pr_err("Cannot allocate nfc hdev\n");
691 nfc_hci_set_clientdata(info->hdev, info);
693 r = nfc_hci_register_device(info->hdev);
702 nfc_hci_free_device(info->hdev);
710 EXPORT_SYMBOL(microread_probe);
712 void microread_remove(struct nfc_hci_dev *hdev)
714 struct microread_info *info = nfc_hci_get_clientdata(hdev);
716 nfc_hci_unregister_device(hdev);
717 nfc_hci_free_device(hdev);
720 EXPORT_SYMBOL(microread_remove);
722 MODULE_LICENSE("GPL");
723 MODULE_DESCRIPTION(DRIVER_DESC);