2 * Copyright (C) 2011 Instituto Nokia de Tecnologia
3 * Copyright (C) 2012-2013 Tieto Poland
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License as published by
7 * the Free Software Foundation; either version 2 of the License, or
8 * (at your option) any later version.
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
15 * You should have received a copy of the GNU General Public License
16 * along with this program; if not, write to the
17 * Free Software Foundation, Inc.,
18 * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
21 #include <linux/device.h>
22 #include <linux/kernel.h>
23 #include <linux/module.h>
24 #include <linux/slab.h>
25 #include <linux/usb.h>
26 #include <linux/nfc.h>
27 #include <linux/netdevice.h>
28 #include <net/nfc/nfc.h>
32 #define PN533_VENDOR_ID 0x4CC
33 #define PN533_PRODUCT_ID 0x2533
35 #define SCM_VENDOR_ID 0x4E6
36 #define SCL3711_PRODUCT_ID 0x5591
38 #define SONY_VENDOR_ID 0x054c
39 #define PASORI_PRODUCT_ID 0x02e1
41 #define ACS_VENDOR_ID 0x072f
42 #define ACR122U_PRODUCT_ID 0x2200
44 #define PN533_DEVICE_STD 0x1
45 #define PN533_DEVICE_PASORI 0x2
46 #define PN533_DEVICE_ACR122U 0x3
48 #define PN533_ALL_PROTOCOLS (NFC_PROTO_JEWEL_MASK | NFC_PROTO_MIFARE_MASK |\
49 NFC_PROTO_FELICA_MASK | NFC_PROTO_ISO14443_MASK |\
50 NFC_PROTO_NFC_DEP_MASK |\
51 NFC_PROTO_ISO14443_B_MASK)
53 #define PN533_NO_TYPE_B_PROTOCOLS (NFC_PROTO_JEWEL_MASK | \
54 NFC_PROTO_MIFARE_MASK | \
55 NFC_PROTO_FELICA_MASK | \
56 NFC_PROTO_ISO14443_MASK | \
57 NFC_PROTO_NFC_DEP_MASK)
59 static const struct usb_device_id pn533_table
[] = {
60 { .match_flags
= USB_DEVICE_ID_MATCH_DEVICE
,
61 .idVendor
= PN533_VENDOR_ID
,
62 .idProduct
= PN533_PRODUCT_ID
,
63 .driver_info
= PN533_DEVICE_STD
,
65 { .match_flags
= USB_DEVICE_ID_MATCH_DEVICE
,
66 .idVendor
= SCM_VENDOR_ID
,
67 .idProduct
= SCL3711_PRODUCT_ID
,
68 .driver_info
= PN533_DEVICE_STD
,
70 { .match_flags
= USB_DEVICE_ID_MATCH_DEVICE
,
71 .idVendor
= SONY_VENDOR_ID
,
72 .idProduct
= PASORI_PRODUCT_ID
,
73 .driver_info
= PN533_DEVICE_PASORI
,
75 { .match_flags
= USB_DEVICE_ID_MATCH_DEVICE
,
76 .idVendor
= ACS_VENDOR_ID
,
77 .idProduct
= ACR122U_PRODUCT_ID
,
78 .driver_info
= PN533_DEVICE_ACR122U
,
82 MODULE_DEVICE_TABLE(usb
, pn533_table
);
84 /* How much time we spend listening for initiators */
85 #define PN533_LISTEN_TIME 2
86 /* Delay between each poll frame (ms) */
87 #define PN533_POLL_INTERVAL 10
89 /* Standard pn533 frame definitions (standard and extended)*/
90 #define PN533_STD_FRAME_HEADER_LEN (sizeof(struct pn533_std_frame) \
91 + 2) /* data[0] TFI, data[1] CC */
92 #define PN533_STD_FRAME_TAIL_LEN 2 /* data[len] DCS, data[len + 1] postamble*/
94 #define PN533_EXT_FRAME_HEADER_LEN (sizeof(struct pn533_ext_frame) \
95 + 2) /* data[0] TFI, data[1] CC */
97 #define PN533_CMD_DATAEXCH_DATA_MAXLEN 262
98 #define PN533_CMD_DATAFRAME_MAXLEN 240 /* max data length (send) */
101 * Max extended frame payload len, excluding TFI and CC
102 * which are already in PN533_FRAME_HEADER_LEN.
104 #define PN533_STD_FRAME_MAX_PAYLOAD_LEN 263
106 #define PN533_STD_FRAME_ACK_SIZE 6 /* Preamble (1), SoPC (2), ACK Code (2),
108 #define PN533_STD_FRAME_CHECKSUM(f) (f->data[f->datalen])
109 #define PN533_STD_FRAME_POSTAMBLE(f) (f->data[f->datalen + 1])
110 /* Half start code (3), LEN (4) should be 0xffff for extended frame */
111 #define PN533_STD_IS_EXTENDED(hdr) ((hdr)->datalen == 0xFF \
112 && (hdr)->datalen_checksum == 0xFF)
113 #define PN533_EXT_FRAME_CHECKSUM(f) (f->data[be16_to_cpu(f->datalen)])
116 #define PN533_STD_FRAME_SOF 0x00FF
118 /* standard frame identifier: in/out/error */
119 #define PN533_STD_FRAME_IDENTIFIER(f) (f->data[0]) /* TFI */
120 #define PN533_STD_FRAME_DIR_OUT 0xD4
121 #define PN533_STD_FRAME_DIR_IN 0xD5
123 /* ACS ACR122 pn533 frame definitions */
124 #define PN533_ACR122_TX_FRAME_HEADER_LEN (sizeof(struct pn533_acr122_tx_frame) \
126 #define PN533_ACR122_TX_FRAME_TAIL_LEN 0
127 #define PN533_ACR122_RX_FRAME_HEADER_LEN (sizeof(struct pn533_acr122_rx_frame) \
129 #define PN533_ACR122_RX_FRAME_TAIL_LEN 2
130 #define PN533_ACR122_FRAME_MAX_PAYLOAD_LEN PN533_STD_FRAME_MAX_PAYLOAD_LEN
132 /* CCID messages types */
133 #define PN533_ACR122_PC_TO_RDR_ICCPOWERON 0x62
134 #define PN533_ACR122_PC_TO_RDR_ESCAPE 0x6B
136 #define PN533_ACR122_RDR_TO_PC_ESCAPE 0x83
139 #define PN533_FRAME_CMD(f) (f->data[1])
141 #define PN533_CMD_GET_FIRMWARE_VERSION 0x02
142 #define PN533_CMD_RF_CONFIGURATION 0x32
143 #define PN533_CMD_IN_DATA_EXCHANGE 0x40
144 #define PN533_CMD_IN_COMM_THRU 0x42
145 #define PN533_CMD_IN_LIST_PASSIVE_TARGET 0x4A
146 #define PN533_CMD_IN_ATR 0x50
147 #define PN533_CMD_IN_RELEASE 0x52
148 #define PN533_CMD_IN_JUMP_FOR_DEP 0x56
150 #define PN533_CMD_TG_INIT_AS_TARGET 0x8c
151 #define PN533_CMD_TG_GET_DATA 0x86
152 #define PN533_CMD_TG_SET_DATA 0x8e
153 #define PN533_CMD_TG_SET_META_DATA 0x94
154 #define PN533_CMD_UNDEF 0xff
156 #define PN533_CMD_RESPONSE(cmd) (cmd + 1)
158 /* PN533 Return codes */
159 #define PN533_CMD_RET_MASK 0x3F
160 #define PN533_CMD_MI_MASK 0x40
161 #define PN533_CMD_RET_SUCCESS 0x00
165 typedef int (*pn533_send_async_complete_t
) (struct pn533
*dev
, void *arg
,
166 struct sk_buff
*resp
);
168 /* structs for pn533 commands */
170 /* PN533_CMD_GET_FIRMWARE_VERSION */
171 struct pn533_fw_version
{
178 /* PN533_CMD_RF_CONFIGURATION */
179 #define PN533_CFGITEM_RF_FIELD 0x01
180 #define PN533_CFGITEM_TIMING 0x02
181 #define PN533_CFGITEM_MAX_RETRIES 0x05
182 #define PN533_CFGITEM_PASORI 0x82
184 #define PN533_CFGITEM_RF_FIELD_AUTO_RFCA 0x2
185 #define PN533_CFGITEM_RF_FIELD_ON 0x1
186 #define PN533_CFGITEM_RF_FIELD_OFF 0x0
188 #define PN533_CONFIG_TIMING_102 0xb
189 #define PN533_CONFIG_TIMING_204 0xc
190 #define PN533_CONFIG_TIMING_409 0xd
191 #define PN533_CONFIG_TIMING_819 0xe
193 #define PN533_CONFIG_MAX_RETRIES_NO_RETRY 0x00
194 #define PN533_CONFIG_MAX_RETRIES_ENDLESS 0xFF
196 struct pn533_config_max_retries
{
199 u8 mx_rty_passive_act
;
202 struct pn533_config_timing
{
208 /* PN533_CMD_IN_LIST_PASSIVE_TARGET */
210 /* felica commands opcode */
211 #define PN533_FELICA_OPC_SENSF_REQ 0
212 #define PN533_FELICA_OPC_SENSF_RES 1
213 /* felica SENSF_REQ parameters */
214 #define PN533_FELICA_SENSF_SC_ALL 0xFFFF
215 #define PN533_FELICA_SENSF_RC_NO_SYSTEM_CODE 0
216 #define PN533_FELICA_SENSF_RC_SYSTEM_CODE 1
217 #define PN533_FELICA_SENSF_RC_ADVANCED_PROTOCOL 2
219 /* type B initiator_data values */
220 #define PN533_TYPE_B_AFI_ALL_FAMILIES 0
221 #define PN533_TYPE_B_POLL_METHOD_TIMESLOT 0
222 #define PN533_TYPE_B_POLL_METHOD_PROBABILISTIC 1
224 union pn533_cmd_poll_initdata
{
237 /* Poll modulations */
239 PN533_POLL_MOD_106KBPS_A
,
240 PN533_POLL_MOD_212KBPS_FELICA
,
241 PN533_POLL_MOD_424KBPS_FELICA
,
242 PN533_POLL_MOD_106KBPS_JEWEL
,
243 PN533_POLL_MOD_847KBPS_B
,
246 __PN533_POLL_MOD_AFTER_LAST
,
248 #define PN533_POLL_MOD_MAX (__PN533_POLL_MOD_AFTER_LAST - 1)
250 struct pn533_poll_modulations
{
254 union pn533_cmd_poll_initdata initiator_data
;
259 static const struct pn533_poll_modulations poll_mod
[] = {
260 [PN533_POLL_MOD_106KBPS_A
] = {
267 [PN533_POLL_MOD_212KBPS_FELICA
] = {
271 .initiator_data
.felica
= {
272 .opcode
= PN533_FELICA_OPC_SENSF_REQ
,
273 .sc
= PN533_FELICA_SENSF_SC_ALL
,
274 .rc
= PN533_FELICA_SENSF_RC_SYSTEM_CODE
,
280 [PN533_POLL_MOD_424KBPS_FELICA
] = {
284 .initiator_data
.felica
= {
285 .opcode
= PN533_FELICA_OPC_SENSF_REQ
,
286 .sc
= PN533_FELICA_SENSF_SC_ALL
,
287 .rc
= PN533_FELICA_SENSF_RC_SYSTEM_CODE
,
293 [PN533_POLL_MOD_106KBPS_JEWEL
] = {
300 [PN533_POLL_MOD_847KBPS_B
] = {
304 .initiator_data
.type_b
= {
305 .afi
= PN533_TYPE_B_AFI_ALL_FAMILIES
,
307 PN533_TYPE_B_POLL_METHOD_TIMESLOT
,
312 [PN533_LISTEN_MOD
] = {
317 /* PN533_CMD_IN_ATR */
319 struct pn533_cmd_activate_response
{
331 struct pn533_cmd_jump_dep_response
{
345 /* PN533_TG_INIT_AS_TARGET */
346 #define PN533_INIT_TARGET_PASSIVE 0x1
347 #define PN533_INIT_TARGET_DEP 0x2
349 #define PN533_INIT_TARGET_RESP_FRAME_MASK 0x3
350 #define PN533_INIT_TARGET_RESP_ACTIVE 0x1
351 #define PN533_INIT_TARGET_RESP_DEP 0x4
353 enum pn533_protocol_type
{
354 PN533_PROTO_REQ_ACK_RESP
= 0,
359 struct usb_device
*udev
;
360 struct usb_interface
*interface
;
361 struct nfc_dev
*nfc_dev
;
363 enum pn533_protocol_type protocol_type
;
368 struct sk_buff_head resp_q
;
369 struct sk_buff_head fragment_skb
;
371 struct workqueue_struct
*wq
;
372 struct work_struct cmd_work
;
373 struct work_struct cmd_complete_work
;
374 struct delayed_work poll_work
;
375 struct work_struct mi_rx_work
;
376 struct work_struct mi_tx_work
;
377 struct work_struct mi_tm_rx_work
;
378 struct work_struct mi_tm_tx_work
;
379 struct work_struct tg_work
;
380 struct work_struct rf_work
;
382 struct list_head cmd_queue
;
383 struct pn533_cmd
*cmd
;
385 struct mutex cmd_lock
; /* protects cmd queue */
387 void *cmd_complete_mi_arg
;
388 void *cmd_complete_dep_arg
;
390 struct pn533_poll_modulations
*poll_mod_active
[PN533_POLL_MOD_MAX
+ 1];
395 u32 listen_protocols
;
396 struct timer_list listen_timer
;
402 u8 tgt_available_prots
;
406 struct pn533_frame_ops
*ops
;
410 struct list_head queue
;
414 struct sk_buff
*resp
;
416 pn533_send_async_complete_t complete_cb
;
417 void *complete_cb_context
;
420 struct pn533_std_frame
{
428 struct pn533_ext_frame
{ /* Extended Information frame */
431 __be16 eif_flag
; /* fixed to 0xFFFF */
437 struct pn533_frame_ops
{
438 void (*tx_frame_init
)(void *frame
, u8 cmd_code
);
439 void (*tx_frame_finish
)(void *frame
);
440 void (*tx_update_payload_len
)(void *frame
, int len
);
444 bool (*rx_is_frame_valid
)(void *frame
, struct pn533
*dev
);
445 int (*rx_frame_size
)(void *frame
);
450 u8 (*get_cmd_code
)(void *frame
);
453 struct pn533_acr122_ccid_hdr
{
458 u8 params
[3]; /* 3 msg specific bytes or status, error and 1 specific
459 byte for reposnse msg */
460 u8 data
[]; /* payload */
463 struct pn533_acr122_apdu_hdr
{
470 struct pn533_acr122_tx_frame
{
471 struct pn533_acr122_ccid_hdr ccid
;
472 struct pn533_acr122_apdu_hdr apdu
;
474 u8 data
[]; /* pn533 frame: TFI ... */
477 struct pn533_acr122_rx_frame
{
478 struct pn533_acr122_ccid_hdr ccid
;
479 u8 data
[]; /* pn533 frame : TFI ... */
482 static void pn533_acr122_tx_frame_init(void *_frame
, u8 cmd_code
)
484 struct pn533_acr122_tx_frame
*frame
= _frame
;
486 frame
->ccid
.type
= PN533_ACR122_PC_TO_RDR_ESCAPE
;
487 frame
->ccid
.datalen
= sizeof(frame
->apdu
) + 1; /* sizeof(apdu_hdr) +
489 frame
->ccid
.slot
= 0;
491 frame
->ccid
.params
[0] = 0;
492 frame
->ccid
.params
[1] = 0;
493 frame
->ccid
.params
[2] = 0;
495 frame
->data
[0] = PN533_STD_FRAME_DIR_OUT
;
496 frame
->data
[1] = cmd_code
;
497 frame
->datalen
= 2; /* data[0] + data[1] */
499 frame
->apdu
.class = 0xFF;
505 static void pn533_acr122_tx_frame_finish(void *_frame
)
507 struct pn533_acr122_tx_frame
*frame
= _frame
;
509 frame
->ccid
.datalen
+= frame
->datalen
;
512 static void pn533_acr122_tx_update_payload_len(void *_frame
, int len
)
514 struct pn533_acr122_tx_frame
*frame
= _frame
;
516 frame
->datalen
+= len
;
519 static bool pn533_acr122_is_rx_frame_valid(void *_frame
, struct pn533
*dev
)
521 struct pn533_acr122_rx_frame
*frame
= _frame
;
523 if (frame
->ccid
.type
!= 0x83)
526 if (frame
->data
[frame
->ccid
.datalen
- 2] == 0x63)
532 static int pn533_acr122_rx_frame_size(void *frame
)
534 struct pn533_acr122_rx_frame
*f
= frame
;
536 /* f->ccid.datalen already includes tail length */
537 return sizeof(struct pn533_acr122_rx_frame
) + f
->ccid
.datalen
;
540 static u8
pn533_acr122_get_cmd_code(void *frame
)
542 struct pn533_acr122_rx_frame
*f
= frame
;
544 return PN533_FRAME_CMD(f
);
547 static struct pn533_frame_ops pn533_acr122_frame_ops
= {
548 .tx_frame_init
= pn533_acr122_tx_frame_init
,
549 .tx_frame_finish
= pn533_acr122_tx_frame_finish
,
550 .tx_update_payload_len
= pn533_acr122_tx_update_payload_len
,
551 .tx_header_len
= PN533_ACR122_TX_FRAME_HEADER_LEN
,
552 .tx_tail_len
= PN533_ACR122_TX_FRAME_TAIL_LEN
,
554 .rx_is_frame_valid
= pn533_acr122_is_rx_frame_valid
,
555 .rx_header_len
= PN533_ACR122_RX_FRAME_HEADER_LEN
,
556 .rx_tail_len
= PN533_ACR122_RX_FRAME_TAIL_LEN
,
557 .rx_frame_size
= pn533_acr122_rx_frame_size
,
559 .max_payload_len
= PN533_ACR122_FRAME_MAX_PAYLOAD_LEN
,
560 .get_cmd_code
= pn533_acr122_get_cmd_code
,
563 /* The rule: value(high byte) + value(low byte) + checksum = 0 */
564 static inline u8
pn533_ext_checksum(u16 value
)
566 return ~(u8
)(((value
& 0xFF00) >> 8) + (u8
)(value
& 0xFF)) + 1;
569 /* The rule: value + checksum = 0 */
570 static inline u8
pn533_std_checksum(u8 value
)
575 /* The rule: sum(data elements) + checksum = 0 */
576 static u8
pn533_std_data_checksum(u8
*data
, int datalen
)
581 for (i
= 0; i
< datalen
; i
++)
584 return pn533_std_checksum(sum
);
587 static void pn533_std_tx_frame_init(void *_frame
, u8 cmd_code
)
589 struct pn533_std_frame
*frame
= _frame
;
592 frame
->start_frame
= cpu_to_be16(PN533_STD_FRAME_SOF
);
593 PN533_STD_FRAME_IDENTIFIER(frame
) = PN533_STD_FRAME_DIR_OUT
;
594 PN533_FRAME_CMD(frame
) = cmd_code
;
598 static void pn533_std_tx_frame_finish(void *_frame
)
600 struct pn533_std_frame
*frame
= _frame
;
602 frame
->datalen_checksum
= pn533_std_checksum(frame
->datalen
);
604 PN533_STD_FRAME_CHECKSUM(frame
) =
605 pn533_std_data_checksum(frame
->data
, frame
->datalen
);
607 PN533_STD_FRAME_POSTAMBLE(frame
) = 0;
610 static void pn533_std_tx_update_payload_len(void *_frame
, int len
)
612 struct pn533_std_frame
*frame
= _frame
;
614 frame
->datalen
+= len
;
617 static bool pn533_std_rx_frame_is_valid(void *_frame
, struct pn533
*dev
)
620 struct pn533_std_frame
*stdf
= _frame
;
622 if (stdf
->start_frame
!= cpu_to_be16(PN533_STD_FRAME_SOF
))
625 if (likely(!PN533_STD_IS_EXTENDED(stdf
))) {
626 /* Standard frame code */
627 dev
->ops
->rx_header_len
= PN533_STD_FRAME_HEADER_LEN
;
629 checksum
= pn533_std_checksum(stdf
->datalen
);
630 if (checksum
!= stdf
->datalen_checksum
)
633 checksum
= pn533_std_data_checksum(stdf
->data
, stdf
->datalen
);
634 if (checksum
!= PN533_STD_FRAME_CHECKSUM(stdf
))
638 struct pn533_ext_frame
*eif
= _frame
;
640 dev
->ops
->rx_header_len
= PN533_EXT_FRAME_HEADER_LEN
;
642 checksum
= pn533_ext_checksum(be16_to_cpu(eif
->datalen
));
643 if (checksum
!= eif
->datalen_checksum
)
646 /* check data checksum */
647 checksum
= pn533_std_data_checksum(eif
->data
,
648 be16_to_cpu(eif
->datalen
));
649 if (checksum
!= PN533_EXT_FRAME_CHECKSUM(eif
))
656 static bool pn533_std_rx_frame_is_ack(struct pn533_std_frame
*frame
)
658 if (frame
->start_frame
!= cpu_to_be16(PN533_STD_FRAME_SOF
))
661 if (frame
->datalen
!= 0 || frame
->datalen_checksum
!= 0xFF)
667 static inline int pn533_std_rx_frame_size(void *frame
)
669 struct pn533_std_frame
*f
= frame
;
671 /* check for Extended Information frame */
672 if (PN533_STD_IS_EXTENDED(f
)) {
673 struct pn533_ext_frame
*eif
= frame
;
675 return sizeof(struct pn533_ext_frame
)
676 + be16_to_cpu(eif
->datalen
) + PN533_STD_FRAME_TAIL_LEN
;
679 return sizeof(struct pn533_std_frame
) + f
->datalen
+
680 PN533_STD_FRAME_TAIL_LEN
;
683 static u8
pn533_std_get_cmd_code(void *frame
)
685 struct pn533_std_frame
*f
= frame
;
686 struct pn533_ext_frame
*eif
= frame
;
688 if (PN533_STD_IS_EXTENDED(f
))
689 return PN533_FRAME_CMD(eif
);
691 return PN533_FRAME_CMD(f
);
694 static struct pn533_frame_ops pn533_std_frame_ops
= {
695 .tx_frame_init
= pn533_std_tx_frame_init
,
696 .tx_frame_finish
= pn533_std_tx_frame_finish
,
697 .tx_update_payload_len
= pn533_std_tx_update_payload_len
,
698 .tx_header_len
= PN533_STD_FRAME_HEADER_LEN
,
699 .tx_tail_len
= PN533_STD_FRAME_TAIL_LEN
,
701 .rx_is_frame_valid
= pn533_std_rx_frame_is_valid
,
702 .rx_frame_size
= pn533_std_rx_frame_size
,
703 .rx_header_len
= PN533_STD_FRAME_HEADER_LEN
,
704 .rx_tail_len
= PN533_STD_FRAME_TAIL_LEN
,
706 .max_payload_len
= PN533_STD_FRAME_MAX_PAYLOAD_LEN
,
707 .get_cmd_code
= pn533_std_get_cmd_code
,
710 static bool pn533_rx_frame_is_cmd_response(struct pn533
*dev
, void *frame
)
712 return (dev
->ops
->get_cmd_code(frame
) ==
713 PN533_CMD_RESPONSE(dev
->cmd
->code
));
716 static void pn533_recv_response(struct urb
*urb
)
718 struct pn533
*dev
= urb
->context
;
719 struct pn533_cmd
*cmd
= dev
->cmd
;
722 cmd
->status
= urb
->status
;
724 switch (urb
->status
) {
729 dev_dbg(&dev
->interface
->dev
,
730 "The urb has been canceled (status %d)\n",
735 nfc_err(&dev
->interface
->dev
,
736 "Urb failure (status %d)\n", urb
->status
);
740 in_frame
= dev
->in_urb
->transfer_buffer
;
742 dev_dbg(&dev
->interface
->dev
, "Received a frame\n");
743 print_hex_dump_debug("PN533 RX: ", DUMP_PREFIX_NONE
, 16, 1, in_frame
,
744 dev
->ops
->rx_frame_size(in_frame
), false);
746 if (!dev
->ops
->rx_is_frame_valid(in_frame
, dev
)) {
747 nfc_err(&dev
->interface
->dev
, "Received an invalid frame\n");
752 if (!pn533_rx_frame_is_cmd_response(dev
, in_frame
)) {
753 nfc_err(&dev
->interface
->dev
,
754 "It it not the response to the last command\n");
760 queue_work(dev
->wq
, &dev
->cmd_complete_work
);
763 static int pn533_submit_urb_for_response(struct pn533
*dev
, gfp_t flags
)
765 dev
->in_urb
->complete
= pn533_recv_response
;
767 return usb_submit_urb(dev
->in_urb
, flags
);
770 static void pn533_recv_ack(struct urb
*urb
)
772 struct pn533
*dev
= urb
->context
;
773 struct pn533_cmd
*cmd
= dev
->cmd
;
774 struct pn533_std_frame
*in_frame
;
777 cmd
->status
= urb
->status
;
779 switch (urb
->status
) {
784 dev_dbg(&dev
->interface
->dev
,
785 "The urb has been stopped (status %d)\n",
790 nfc_err(&dev
->interface
->dev
,
791 "Urb failure (status %d)\n", urb
->status
);
795 in_frame
= dev
->in_urb
->transfer_buffer
;
797 if (!pn533_std_rx_frame_is_ack(in_frame
)) {
798 nfc_err(&dev
->interface
->dev
, "Received an invalid ack\n");
803 rc
= pn533_submit_urb_for_response(dev
, GFP_ATOMIC
);
805 nfc_err(&dev
->interface
->dev
,
806 "usb_submit_urb failed with result %d\n", rc
);
814 queue_work(dev
->wq
, &dev
->cmd_complete_work
);
817 static int pn533_submit_urb_for_ack(struct pn533
*dev
, gfp_t flags
)
819 dev
->in_urb
->complete
= pn533_recv_ack
;
821 return usb_submit_urb(dev
->in_urb
, flags
);
824 static int pn533_send_ack(struct pn533
*dev
, gfp_t flags
)
826 u8 ack
[PN533_STD_FRAME_ACK_SIZE
] = {0x00, 0x00, 0xff, 0x00, 0xff, 0x00};
827 /* spec 7.1.1.3: Preamble, SoPC (2), ACK Code (2), Postamble */
830 dev
->out_urb
->transfer_buffer
= ack
;
831 dev
->out_urb
->transfer_buffer_length
= sizeof(ack
);
832 rc
= usb_submit_urb(dev
->out_urb
, flags
);
837 static int __pn533_send_frame_async(struct pn533
*dev
,
844 dev
->out_urb
->transfer_buffer
= out
->data
;
845 dev
->out_urb
->transfer_buffer_length
= out
->len
;
847 dev
->in_urb
->transfer_buffer
= in
->data
;
848 dev
->in_urb
->transfer_buffer_length
= in_len
;
850 print_hex_dump_debug("PN533 TX: ", DUMP_PREFIX_NONE
, 16, 1,
851 out
->data
, out
->len
, false);
853 rc
= usb_submit_urb(dev
->out_urb
, GFP_KERNEL
);
857 if (dev
->protocol_type
== PN533_PROTO_REQ_RESP
) {
858 /* request for response for sent packet directly */
859 rc
= pn533_submit_urb_for_response(dev
, GFP_ATOMIC
);
862 } else if (dev
->protocol_type
== PN533_PROTO_REQ_ACK_RESP
) {
863 /* request for ACK if that's the case */
864 rc
= pn533_submit_urb_for_ack(dev
, GFP_KERNEL
);
872 usb_unlink_urb(dev
->out_urb
);
876 static void pn533_build_cmd_frame(struct pn533
*dev
, u8 cmd_code
,
879 /* payload is already there, just update datalen */
880 int payload_len
= skb
->len
;
881 struct pn533_frame_ops
*ops
= dev
->ops
;
884 skb_push(skb
, ops
->tx_header_len
);
885 skb_put(skb
, ops
->tx_tail_len
);
887 ops
->tx_frame_init(skb
->data
, cmd_code
);
888 ops
->tx_update_payload_len(skb
->data
, payload_len
);
889 ops
->tx_frame_finish(skb
->data
);
892 static int pn533_send_async_complete(struct pn533
*dev
)
894 struct pn533_cmd
*cmd
= dev
->cmd
;
895 int status
= cmd
->status
;
897 struct sk_buff
*req
= cmd
->req
;
898 struct sk_buff
*resp
= cmd
->resp
;
905 rc
= cmd
->complete_cb(dev
, cmd
->complete_cb_context
,
911 skb_put(resp
, dev
->ops
->rx_frame_size(resp
->data
));
912 skb_pull(resp
, dev
->ops
->rx_header_len
);
913 skb_trim(resp
, resp
->len
- dev
->ops
->rx_tail_len
);
915 rc
= cmd
->complete_cb(dev
, cmd
->complete_cb_context
, resp
);
923 static int __pn533_send_async(struct pn533
*dev
, u8 cmd_code
,
924 struct sk_buff
*req
, struct sk_buff
*resp
,
926 pn533_send_async_complete_t complete_cb
,
927 void *complete_cb_context
)
929 struct pn533_cmd
*cmd
;
932 dev_dbg(&dev
->interface
->dev
, "Sending command 0x%x\n", cmd_code
);
934 cmd
= kzalloc(sizeof(*cmd
), GFP_KERNEL
);
938 cmd
->code
= cmd_code
;
941 cmd
->resp_len
= resp_len
;
942 cmd
->complete_cb
= complete_cb
;
943 cmd
->complete_cb_context
= complete_cb_context
;
945 pn533_build_cmd_frame(dev
, cmd_code
, req
);
947 mutex_lock(&dev
->cmd_lock
);
949 if (!dev
->cmd_pending
) {
950 rc
= __pn533_send_frame_async(dev
, req
, resp
, resp_len
);
954 dev
->cmd_pending
= 1;
959 dev_dbg(&dev
->interface
->dev
, "%s Queueing command 0x%x\n",
962 INIT_LIST_HEAD(&cmd
->queue
);
963 list_add_tail(&cmd
->queue
, &dev
->cmd_queue
);
970 mutex_unlock(&dev
->cmd_lock
);
974 static int pn533_send_data_async(struct pn533
*dev
, u8 cmd_code
,
976 pn533_send_async_complete_t complete_cb
,
977 void *complete_cb_context
)
979 struct sk_buff
*resp
;
981 int resp_len
= dev
->ops
->rx_header_len
+
982 dev
->ops
->max_payload_len
+
983 dev
->ops
->rx_tail_len
;
985 resp
= nfc_alloc_recv_skb(resp_len
, GFP_KERNEL
);
989 rc
= __pn533_send_async(dev
, cmd_code
, req
, resp
, resp_len
, complete_cb
,
990 complete_cb_context
);
997 static int pn533_send_cmd_async(struct pn533
*dev
, u8 cmd_code
,
999 pn533_send_async_complete_t complete_cb
,
1000 void *complete_cb_context
)
1002 struct sk_buff
*resp
;
1004 int resp_len
= dev
->ops
->rx_header_len
+
1005 dev
->ops
->max_payload_len
+
1006 dev
->ops
->rx_tail_len
;
1008 resp
= alloc_skb(resp_len
, GFP_KERNEL
);
1012 rc
= __pn533_send_async(dev
, cmd_code
, req
, resp
, resp_len
, complete_cb
,
1013 complete_cb_context
);
1015 dev_kfree_skb(resp
);
1021 * pn533_send_cmd_direct_async
1023 * The function sends a piority cmd directly to the chip omiting the cmd
1024 * queue. It's intended to be used by chaining mechanism of received responses
1025 * where the host has to request every single chunk of data before scheduling
1026 * next cmd from the queue.
1028 static int pn533_send_cmd_direct_async(struct pn533
*dev
, u8 cmd_code
,
1029 struct sk_buff
*req
,
1030 pn533_send_async_complete_t complete_cb
,
1031 void *complete_cb_context
)
1033 struct sk_buff
*resp
;
1034 struct pn533_cmd
*cmd
;
1036 int resp_len
= dev
->ops
->rx_header_len
+
1037 dev
->ops
->max_payload_len
+
1038 dev
->ops
->rx_tail_len
;
1040 resp
= alloc_skb(resp_len
, GFP_KERNEL
);
1044 cmd
= kzalloc(sizeof(*cmd
), GFP_KERNEL
);
1046 dev_kfree_skb(resp
);
1050 cmd
->code
= cmd_code
;
1053 cmd
->resp_len
= resp_len
;
1054 cmd
->complete_cb
= complete_cb
;
1055 cmd
->complete_cb_context
= complete_cb_context
;
1057 pn533_build_cmd_frame(dev
, cmd_code
, req
);
1059 rc
= __pn533_send_frame_async(dev
, req
, resp
, resp_len
);
1061 dev_kfree_skb(resp
);
1070 static void pn533_wq_cmd_complete(struct work_struct
*work
)
1072 struct pn533
*dev
= container_of(work
, struct pn533
, cmd_complete_work
);
1075 rc
= pn533_send_async_complete(dev
);
1076 if (rc
!= -EINPROGRESS
)
1077 queue_work(dev
->wq
, &dev
->cmd_work
);
1080 static void pn533_wq_cmd(struct work_struct
*work
)
1082 struct pn533
*dev
= container_of(work
, struct pn533
, cmd_work
);
1083 struct pn533_cmd
*cmd
;
1086 mutex_lock(&dev
->cmd_lock
);
1088 if (list_empty(&dev
->cmd_queue
)) {
1089 dev
->cmd_pending
= 0;
1090 mutex_unlock(&dev
->cmd_lock
);
1094 cmd
= list_first_entry(&dev
->cmd_queue
, struct pn533_cmd
, queue
);
1096 list_del(&cmd
->queue
);
1098 mutex_unlock(&dev
->cmd_lock
);
1100 rc
= __pn533_send_frame_async(dev
, cmd
->req
, cmd
->resp
, cmd
->resp_len
);
1102 dev_kfree_skb(cmd
->req
);
1103 dev_kfree_skb(cmd
->resp
);
1111 struct pn533_sync_cmd_response
{
1112 struct sk_buff
*resp
;
1113 struct completion done
;
1116 static int pn533_send_sync_complete(struct pn533
*dev
, void *_arg
,
1117 struct sk_buff
*resp
)
1119 struct pn533_sync_cmd_response
*arg
= _arg
;
1122 complete(&arg
->done
);
1127 /* pn533_send_cmd_sync
1129 * Please note the req parameter is freed inside the function to
1130 * limit a number of return value interpretations by the caller.
1132 * 1. negative in case of error during TX path -> req should be freed
1134 * 2. negative in case of error during RX path -> req should not be freed
1135 * as it's been already freed at the begining of RX path by
1136 * async_complete_cb.
1138 * 3. valid pointer in case of succesfult RX path
1140 * A caller has to check a return value with IS_ERR macro. If the test pass,
1141 * the returned pointer is valid.
1144 static struct sk_buff
*pn533_send_cmd_sync(struct pn533
*dev
, u8 cmd_code
,
1145 struct sk_buff
*req
)
1148 struct pn533_sync_cmd_response arg
;
1150 init_completion(&arg
.done
);
1152 rc
= pn533_send_cmd_async(dev
, cmd_code
, req
,
1153 pn533_send_sync_complete
, &arg
);
1159 wait_for_completion(&arg
.done
);
1164 static void pn533_send_complete(struct urb
*urb
)
1166 struct pn533
*dev
= urb
->context
;
1168 switch (urb
->status
) {
1170 break; /* success */
1173 dev_dbg(&dev
->interface
->dev
,
1174 "The urb has been stopped (status %d)\n",
1179 nfc_err(&dev
->interface
->dev
, "Urb failure (status %d)\n",
1184 static void pn533_abort_cmd(struct pn533
*dev
, gfp_t flags
)
1186 /* ACR122U does not support any command which aborts last
1187 * issued command i.e. as ACK for standard PN533. Additionally,
1188 * it behaves stange, sending broken or incorrect responses,
1189 * when we cancel urb before the chip will send response.
1191 if (dev
->device_type
== PN533_DEVICE_ACR122U
)
1194 /* An ack will cancel the last issued command */
1195 pn533_send_ack(dev
, flags
);
1197 /* cancel the urb request */
1198 usb_kill_urb(dev
->in_urb
);
1201 static struct sk_buff
*pn533_alloc_skb(struct pn533
*dev
, unsigned int size
)
1203 struct sk_buff
*skb
;
1205 skb
= alloc_skb(dev
->ops
->tx_header_len
+
1207 dev
->ops
->tx_tail_len
, GFP_KERNEL
);
1210 skb_reserve(skb
, dev
->ops
->tx_header_len
);
1215 struct pn533_target_type_a
{
1223 #define PN533_TYPE_A_SENS_RES_NFCID1(x) ((u8)((be16_to_cpu(x) & 0x00C0) >> 6))
1224 #define PN533_TYPE_A_SENS_RES_SSD(x) ((u8)((be16_to_cpu(x) & 0x001F) >> 0))
1225 #define PN533_TYPE_A_SENS_RES_PLATCONF(x) ((u8)((be16_to_cpu(x) & 0x0F00) >> 8))
1227 #define PN533_TYPE_A_SENS_RES_SSD_JEWEL 0x00
1228 #define PN533_TYPE_A_SENS_RES_PLATCONF_JEWEL 0x0C
1230 #define PN533_TYPE_A_SEL_PROT(x) (((x) & 0x60) >> 5)
1231 #define PN533_TYPE_A_SEL_CASCADE(x) (((x) & 0x04) >> 2)
1233 #define PN533_TYPE_A_SEL_PROT_MIFARE 0
1234 #define PN533_TYPE_A_SEL_PROT_ISO14443 1
1235 #define PN533_TYPE_A_SEL_PROT_DEP 2
1236 #define PN533_TYPE_A_SEL_PROT_ISO14443_DEP 3
1238 static bool pn533_target_type_a_is_valid(struct pn533_target_type_a
*type_a
,
1239 int target_data_len
)
1244 if (target_data_len
< sizeof(struct pn533_target_type_a
))
1247 /* The lenght check of nfcid[] and ats[] are not being performed because
1248 the values are not being used */
1250 /* Requirement 4.6.3.3 from NFC Forum Digital Spec */
1251 ssd
= PN533_TYPE_A_SENS_RES_SSD(type_a
->sens_res
);
1252 platconf
= PN533_TYPE_A_SENS_RES_PLATCONF(type_a
->sens_res
);
1254 if ((ssd
== PN533_TYPE_A_SENS_RES_SSD_JEWEL
&&
1255 platconf
!= PN533_TYPE_A_SENS_RES_PLATCONF_JEWEL
) ||
1256 (ssd
!= PN533_TYPE_A_SENS_RES_SSD_JEWEL
&&
1257 platconf
== PN533_TYPE_A_SENS_RES_PLATCONF_JEWEL
))
1260 /* Requirements 4.8.2.1, 4.8.2.3, 4.8.2.5 and 4.8.2.7 from NFC Forum */
1261 if (PN533_TYPE_A_SEL_CASCADE(type_a
->sel_res
) != 0)
1267 static int pn533_target_found_type_a(struct nfc_target
*nfc_tgt
, u8
*tgt_data
,
1270 struct pn533_target_type_a
*tgt_type_a
;
1272 tgt_type_a
= (struct pn533_target_type_a
*)tgt_data
;
1274 if (!pn533_target_type_a_is_valid(tgt_type_a
, tgt_data_len
))
1277 switch (PN533_TYPE_A_SEL_PROT(tgt_type_a
->sel_res
)) {
1278 case PN533_TYPE_A_SEL_PROT_MIFARE
:
1279 nfc_tgt
->supported_protocols
= NFC_PROTO_MIFARE_MASK
;
1281 case PN533_TYPE_A_SEL_PROT_ISO14443
:
1282 nfc_tgt
->supported_protocols
= NFC_PROTO_ISO14443_MASK
;
1284 case PN533_TYPE_A_SEL_PROT_DEP
:
1285 nfc_tgt
->supported_protocols
= NFC_PROTO_NFC_DEP_MASK
;
1287 case PN533_TYPE_A_SEL_PROT_ISO14443_DEP
:
1288 nfc_tgt
->supported_protocols
= NFC_PROTO_ISO14443_MASK
|
1289 NFC_PROTO_NFC_DEP_MASK
;
1293 nfc_tgt
->sens_res
= be16_to_cpu(tgt_type_a
->sens_res
);
1294 nfc_tgt
->sel_res
= tgt_type_a
->sel_res
;
1295 nfc_tgt
->nfcid1_len
= tgt_type_a
->nfcid_len
;
1296 memcpy(nfc_tgt
->nfcid1
, tgt_type_a
->nfcid_data
, nfc_tgt
->nfcid1_len
);
1301 struct pn533_target_felica
{
1304 u8 nfcid2
[NFC_NFCID2_MAXSIZE
];
1310 #define PN533_FELICA_SENSF_NFCID2_DEP_B1 0x01
1311 #define PN533_FELICA_SENSF_NFCID2_DEP_B2 0xFE
1313 static bool pn533_target_felica_is_valid(struct pn533_target_felica
*felica
,
1314 int target_data_len
)
1316 if (target_data_len
< sizeof(struct pn533_target_felica
))
1319 if (felica
->opcode
!= PN533_FELICA_OPC_SENSF_RES
)
1325 static int pn533_target_found_felica(struct nfc_target
*nfc_tgt
, u8
*tgt_data
,
1328 struct pn533_target_felica
*tgt_felica
;
1330 tgt_felica
= (struct pn533_target_felica
*)tgt_data
;
1332 if (!pn533_target_felica_is_valid(tgt_felica
, tgt_data_len
))
1335 if ((tgt_felica
->nfcid2
[0] == PN533_FELICA_SENSF_NFCID2_DEP_B1
) &&
1336 (tgt_felica
->nfcid2
[1] == PN533_FELICA_SENSF_NFCID2_DEP_B2
))
1337 nfc_tgt
->supported_protocols
= NFC_PROTO_NFC_DEP_MASK
;
1339 nfc_tgt
->supported_protocols
= NFC_PROTO_FELICA_MASK
;
1341 memcpy(nfc_tgt
->sensf_res
, &tgt_felica
->opcode
, 9);
1342 nfc_tgt
->sensf_res_len
= 9;
1344 memcpy(nfc_tgt
->nfcid2
, tgt_felica
->nfcid2
, NFC_NFCID2_MAXSIZE
);
1345 nfc_tgt
->nfcid2_len
= NFC_NFCID2_MAXSIZE
;
1350 struct pn533_target_jewel
{
1355 static bool pn533_target_jewel_is_valid(struct pn533_target_jewel
*jewel
,
1356 int target_data_len
)
1361 if (target_data_len
< sizeof(struct pn533_target_jewel
))
1364 /* Requirement 4.6.3.3 from NFC Forum Digital Spec */
1365 ssd
= PN533_TYPE_A_SENS_RES_SSD(jewel
->sens_res
);
1366 platconf
= PN533_TYPE_A_SENS_RES_PLATCONF(jewel
->sens_res
);
1368 if ((ssd
== PN533_TYPE_A_SENS_RES_SSD_JEWEL
&&
1369 platconf
!= PN533_TYPE_A_SENS_RES_PLATCONF_JEWEL
) ||
1370 (ssd
!= PN533_TYPE_A_SENS_RES_SSD_JEWEL
&&
1371 platconf
== PN533_TYPE_A_SENS_RES_PLATCONF_JEWEL
))
1377 static int pn533_target_found_jewel(struct nfc_target
*nfc_tgt
, u8
*tgt_data
,
1380 struct pn533_target_jewel
*tgt_jewel
;
1382 tgt_jewel
= (struct pn533_target_jewel
*)tgt_data
;
1384 if (!pn533_target_jewel_is_valid(tgt_jewel
, tgt_data_len
))
1387 nfc_tgt
->supported_protocols
= NFC_PROTO_JEWEL_MASK
;
1388 nfc_tgt
->sens_res
= be16_to_cpu(tgt_jewel
->sens_res
);
1389 nfc_tgt
->nfcid1_len
= 4;
1390 memcpy(nfc_tgt
->nfcid1
, tgt_jewel
->jewelid
, nfc_tgt
->nfcid1_len
);
1395 struct pn533_type_b_prot_info
{
1401 #define PN533_TYPE_B_PROT_FCSI(x) (((x) & 0xF0) >> 4)
1402 #define PN533_TYPE_B_PROT_TYPE(x) (((x) & 0x0F) >> 0)
1403 #define PN533_TYPE_B_PROT_TYPE_RFU_MASK 0x8
1405 struct pn533_type_b_sens_res
{
1409 struct pn533_type_b_prot_info prot_info
;
1412 #define PN533_TYPE_B_OPC_SENSB_RES 0x50
1414 struct pn533_target_type_b
{
1415 struct pn533_type_b_sens_res sensb_res
;
1420 static bool pn533_target_type_b_is_valid(struct pn533_target_type_b
*type_b
,
1421 int target_data_len
)
1423 if (target_data_len
< sizeof(struct pn533_target_type_b
))
1426 if (type_b
->sensb_res
.opcode
!= PN533_TYPE_B_OPC_SENSB_RES
)
1429 if (PN533_TYPE_B_PROT_TYPE(type_b
->sensb_res
.prot_info
.fsci_type
) &
1430 PN533_TYPE_B_PROT_TYPE_RFU_MASK
)
1436 static int pn533_target_found_type_b(struct nfc_target
*nfc_tgt
, u8
*tgt_data
,
1439 struct pn533_target_type_b
*tgt_type_b
;
1441 tgt_type_b
= (struct pn533_target_type_b
*)tgt_data
;
1443 if (!pn533_target_type_b_is_valid(tgt_type_b
, tgt_data_len
))
1446 nfc_tgt
->supported_protocols
= NFC_PROTO_ISO14443_B_MASK
;
1451 static int pn533_target_found(struct pn533
*dev
, u8 tg
, u8
*tgdata
,
1454 struct nfc_target nfc_tgt
;
1457 dev_dbg(&dev
->interface
->dev
, "%s: modulation=%d\n",
1458 __func__
, dev
->poll_mod_curr
);
1463 memset(&nfc_tgt
, 0, sizeof(struct nfc_target
));
1465 switch (dev
->poll_mod_curr
) {
1466 case PN533_POLL_MOD_106KBPS_A
:
1467 rc
= pn533_target_found_type_a(&nfc_tgt
, tgdata
, tgdata_len
);
1469 case PN533_POLL_MOD_212KBPS_FELICA
:
1470 case PN533_POLL_MOD_424KBPS_FELICA
:
1471 rc
= pn533_target_found_felica(&nfc_tgt
, tgdata
, tgdata_len
);
1473 case PN533_POLL_MOD_106KBPS_JEWEL
:
1474 rc
= pn533_target_found_jewel(&nfc_tgt
, tgdata
, tgdata_len
);
1476 case PN533_POLL_MOD_847KBPS_B
:
1477 rc
= pn533_target_found_type_b(&nfc_tgt
, tgdata
, tgdata_len
);
1480 nfc_err(&dev
->interface
->dev
,
1481 "Unknown current poll modulation\n");
1488 if (!(nfc_tgt
.supported_protocols
& dev
->poll_protocols
)) {
1489 dev_dbg(&dev
->interface
->dev
,
1490 "The Tg found doesn't have the desired protocol\n");
1494 dev_dbg(&dev
->interface
->dev
,
1495 "Target found - supported protocols: 0x%x\n",
1496 nfc_tgt
.supported_protocols
);
1498 dev
->tgt_available_prots
= nfc_tgt
.supported_protocols
;
1500 nfc_targets_found(dev
->nfc_dev
, &nfc_tgt
, 1);
1505 static inline void pn533_poll_next_mod(struct pn533
*dev
)
1507 dev
->poll_mod_curr
= (dev
->poll_mod_curr
+ 1) % dev
->poll_mod_count
;
1510 static void pn533_poll_reset_mod_list(struct pn533
*dev
)
1512 dev
->poll_mod_count
= 0;
1515 static void pn533_poll_add_mod(struct pn533
*dev
, u8 mod_index
)
1517 dev
->poll_mod_active
[dev
->poll_mod_count
] =
1518 (struct pn533_poll_modulations
*)&poll_mod
[mod_index
];
1519 dev
->poll_mod_count
++;
1522 static void pn533_poll_create_mod_list(struct pn533
*dev
,
1523 u32 im_protocols
, u32 tm_protocols
)
1525 pn533_poll_reset_mod_list(dev
);
1527 if ((im_protocols
& NFC_PROTO_MIFARE_MASK
) ||
1528 (im_protocols
& NFC_PROTO_ISO14443_MASK
) ||
1529 (im_protocols
& NFC_PROTO_NFC_DEP_MASK
))
1530 pn533_poll_add_mod(dev
, PN533_POLL_MOD_106KBPS_A
);
1532 if (im_protocols
& NFC_PROTO_FELICA_MASK
||
1533 im_protocols
& NFC_PROTO_NFC_DEP_MASK
) {
1534 pn533_poll_add_mod(dev
, PN533_POLL_MOD_212KBPS_FELICA
);
1535 pn533_poll_add_mod(dev
, PN533_POLL_MOD_424KBPS_FELICA
);
1538 if (im_protocols
& NFC_PROTO_JEWEL_MASK
)
1539 pn533_poll_add_mod(dev
, PN533_POLL_MOD_106KBPS_JEWEL
);
1541 if (im_protocols
& NFC_PROTO_ISO14443_B_MASK
)
1542 pn533_poll_add_mod(dev
, PN533_POLL_MOD_847KBPS_B
);
1545 pn533_poll_add_mod(dev
, PN533_LISTEN_MOD
);
1548 static int pn533_start_poll_complete(struct pn533
*dev
, struct sk_buff
*resp
)
1550 u8 nbtg
, tg
, *tgdata
;
1553 /* Toggle the DEP polling */
1556 nbtg
= resp
->data
[0];
1558 tgdata
= &resp
->data
[2];
1559 tgdata_len
= resp
->len
- 2; /* nbtg + tg */
1562 rc
= pn533_target_found(dev
, tg
, tgdata
, tgdata_len
);
1564 /* We must stop the poll after a valid target found */
1566 pn533_poll_reset_mod_list(dev
);
1574 static struct sk_buff
*pn533_alloc_poll_tg_frame(struct pn533
*dev
)
1576 struct sk_buff
*skb
;
1577 u8
*felica
, *nfcid3
, *gb
;
1579 u8
*gbytes
= dev
->gb
;
1580 size_t gbytes_len
= dev
->gb_len
;
1582 u8 felica_params
[18] = {0x1, 0xfe, /* DEP */
1583 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, /* random */
1584 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0,
1585 0xff, 0xff}; /* System code */
1587 u8 mifare_params
[6] = {0x1, 0x1, /* SENS_RES */
1589 0x40}; /* SEL_RES for DEP */
1591 unsigned int skb_len
= 36 + /* mode (1), mifare (6),
1592 felica (18), nfcid3 (10), gb_len (1) */
1596 skb
= pn533_alloc_skb(dev
, skb_len
);
1600 /* DEP support only */
1601 *skb_put(skb
, 1) = PN533_INIT_TARGET_DEP
;
1604 memcpy(skb_put(skb
, 6), mifare_params
, 6);
1607 felica
= skb_put(skb
, 18);
1608 memcpy(felica
, felica_params
, 18);
1609 get_random_bytes(felica
+ 2, 6);
1612 nfcid3
= skb_put(skb
, 10);
1613 memset(nfcid3
, 0, 10);
1614 memcpy(nfcid3
, felica
, 8);
1617 *skb_put(skb
, 1) = gbytes_len
;
1619 gb
= skb_put(skb
, gbytes_len
);
1620 memcpy(gb
, gbytes
, gbytes_len
);
1623 *skb_put(skb
, 1) = 0;
1628 #define PN533_CMD_DATAEXCH_HEAD_LEN 1
1629 #define PN533_CMD_DATAEXCH_DATA_MAXLEN 262
1630 static void pn533_wq_tm_mi_recv(struct work_struct
*work
);
1631 static struct sk_buff
*pn533_build_response(struct pn533
*dev
);
1633 static int pn533_tm_get_data_complete(struct pn533
*dev
, void *arg
,
1634 struct sk_buff
*resp
)
1636 struct sk_buff
*skb
;
1640 dev_dbg(&dev
->interface
->dev
, "%s\n", __func__
);
1643 skb_queue_purge(&dev
->resp_q
);
1644 return PTR_ERR(resp
);
1647 status
= resp
->data
[0];
1649 ret
= status
& PN533_CMD_RET_MASK
;
1650 mi
= status
& PN533_CMD_MI_MASK
;
1652 skb_pull(resp
, sizeof(status
));
1654 if (ret
!= PN533_CMD_RET_SUCCESS
) {
1659 skb_queue_tail(&dev
->resp_q
, resp
);
1662 queue_work(dev
->wq
, &dev
->mi_tm_rx_work
);
1663 return -EINPROGRESS
;
1666 skb
= pn533_build_response(dev
);
1672 return nfc_tm_data_received(dev
->nfc_dev
, skb
);
1675 nfc_tm_deactivated(dev
->nfc_dev
);
1677 skb_queue_purge(&dev
->resp_q
);
1678 dev_kfree_skb(resp
);
1683 static void pn533_wq_tm_mi_recv(struct work_struct
*work
)
1685 struct pn533
*dev
= container_of(work
, struct pn533
, mi_tm_rx_work
);
1686 struct sk_buff
*skb
;
1689 dev_dbg(&dev
->interface
->dev
, "%s\n", __func__
);
1691 skb
= pn533_alloc_skb(dev
, 0);
1695 rc
= pn533_send_cmd_direct_async(dev
,
1696 PN533_CMD_TG_GET_DATA
,
1698 pn533_tm_get_data_complete
,
1707 static int pn533_tm_send_complete(struct pn533
*dev
, void *arg
,
1708 struct sk_buff
*resp
);
1709 static void pn533_wq_tm_mi_send(struct work_struct
*work
)
1711 struct pn533
*dev
= container_of(work
, struct pn533
, mi_tm_tx_work
);
1712 struct sk_buff
*skb
;
1715 dev_dbg(&dev
->interface
->dev
, "%s\n", __func__
);
1717 /* Grab the first skb in the queue */
1718 skb
= skb_dequeue(&dev
->fragment_skb
);
1719 if (skb
== NULL
) { /* No more data */
1720 /* Reset the queue for future use */
1721 skb_queue_head_init(&dev
->fragment_skb
);
1725 /* last entry - remove MI bit */
1726 if (skb_queue_len(&dev
->fragment_skb
) == 0) {
1727 rc
= pn533_send_cmd_direct_async(dev
, PN533_CMD_TG_SET_DATA
,
1728 skb
, pn533_tm_send_complete
, NULL
);
1730 rc
= pn533_send_cmd_direct_async(dev
,
1731 PN533_CMD_TG_SET_META_DATA
,
1732 skb
, pn533_tm_send_complete
, NULL
);
1734 if (rc
== 0) /* success */
1737 dev_err(&dev
->interface
->dev
,
1738 "Error %d when trying to perform set meta data_exchange", rc
);
1743 pn533_send_ack(dev
, GFP_KERNEL
);
1744 queue_work(dev
->wq
, &dev
->cmd_work
);
1747 static void pn533_wq_tg_get_data(struct work_struct
*work
)
1749 struct pn533
*dev
= container_of(work
, struct pn533
, tg_work
);
1750 struct sk_buff
*skb
;
1753 dev_dbg(&dev
->interface
->dev
, "%s\n", __func__
);
1755 skb
= pn533_alloc_skb(dev
, 0);
1759 rc
= pn533_send_data_async(dev
, PN533_CMD_TG_GET_DATA
, skb
,
1760 pn533_tm_get_data_complete
, NULL
);
1768 #define ATR_REQ_GB_OFFSET 17
1769 static int pn533_init_target_complete(struct pn533
*dev
, struct sk_buff
*resp
)
1771 u8 mode
, *cmd
, comm_mode
= NFC_COMM_PASSIVE
, *gb
;
1775 dev_dbg(&dev
->interface
->dev
, "%s\n", __func__
);
1777 if (resp
->len
< ATR_REQ_GB_OFFSET
+ 1)
1780 mode
= resp
->data
[0];
1781 cmd
= &resp
->data
[1];
1783 dev_dbg(&dev
->interface
->dev
, "Target mode 0x%x len %d\n",
1786 if ((mode
& PN533_INIT_TARGET_RESP_FRAME_MASK
) ==
1787 PN533_INIT_TARGET_RESP_ACTIVE
)
1788 comm_mode
= NFC_COMM_ACTIVE
;
1790 if ((mode
& PN533_INIT_TARGET_RESP_DEP
) == 0) /* Only DEP supported */
1793 gb
= cmd
+ ATR_REQ_GB_OFFSET
;
1794 gb_len
= resp
->len
- (ATR_REQ_GB_OFFSET
+ 1);
1796 rc
= nfc_tm_activated(dev
->nfc_dev
, NFC_PROTO_NFC_DEP_MASK
,
1797 comm_mode
, gb
, gb_len
);
1799 nfc_err(&dev
->interface
->dev
,
1800 "Error when signaling target activation\n");
1805 queue_work(dev
->wq
, &dev
->tg_work
);
1810 static void pn533_listen_mode_timer(unsigned long data
)
1812 struct pn533
*dev
= (struct pn533
*)data
;
1814 dev_dbg(&dev
->interface
->dev
, "Listen mode timeout\n");
1816 dev
->cancel_listen
= 1;
1818 pn533_poll_next_mod(dev
);
1820 queue_delayed_work(dev
->wq
, &dev
->poll_work
,
1821 msecs_to_jiffies(PN533_POLL_INTERVAL
));
1824 static int pn533_rf_complete(struct pn533
*dev
, void *arg
,
1825 struct sk_buff
*resp
)
1829 dev_dbg(&dev
->interface
->dev
, "%s\n", __func__
);
1834 nfc_err(&dev
->interface
->dev
, "RF setting error %d", rc
);
1839 queue_delayed_work(dev
->wq
, &dev
->poll_work
,
1840 msecs_to_jiffies(PN533_POLL_INTERVAL
));
1842 dev_kfree_skb(resp
);
1846 static void pn533_wq_rf(struct work_struct
*work
)
1848 struct pn533
*dev
= container_of(work
, struct pn533
, rf_work
);
1849 struct sk_buff
*skb
;
1852 dev_dbg(&dev
->interface
->dev
, "%s\n", __func__
);
1854 skb
= pn533_alloc_skb(dev
, 2);
1858 *skb_put(skb
, 1) = PN533_CFGITEM_RF_FIELD
;
1859 *skb_put(skb
, 1) = PN533_CFGITEM_RF_FIELD_AUTO_RFCA
;
1861 rc
= pn533_send_cmd_async(dev
, PN533_CMD_RF_CONFIGURATION
, skb
,
1862 pn533_rf_complete
, NULL
);
1865 nfc_err(&dev
->interface
->dev
, "RF setting error %d\n", rc
);
1871 static int pn533_poll_dep_complete(struct pn533
*dev
, void *arg
,
1872 struct sk_buff
*resp
)
1874 struct pn533_cmd_jump_dep_response
*rsp
;
1875 struct nfc_target nfc_target
;
1880 return PTR_ERR(resp
);
1882 rsp
= (struct pn533_cmd_jump_dep_response
*)resp
->data
;
1884 rc
= rsp
->status
& PN533_CMD_RET_MASK
;
1885 if (rc
!= PN533_CMD_RET_SUCCESS
) {
1886 /* Not target found, turn radio off */
1887 queue_work(dev
->wq
, &dev
->rf_work
);
1889 dev_kfree_skb(resp
);
1893 dev_dbg(&dev
->interface
->dev
, "Creating new target");
1895 nfc_target
.supported_protocols
= NFC_PROTO_NFC_DEP_MASK
;
1896 nfc_target
.nfcid1_len
= 10;
1897 memcpy(nfc_target
.nfcid1
, rsp
->nfcid3t
, nfc_target
.nfcid1_len
);
1898 rc
= nfc_targets_found(dev
->nfc_dev
, &nfc_target
, 1);
1902 dev
->tgt_available_prots
= 0;
1903 dev
->tgt_active_prot
= NFC_PROTO_NFC_DEP
;
1905 /* ATR_RES general bytes are located at offset 17 */
1906 target_gt_len
= resp
->len
- 17;
1907 rc
= nfc_set_remote_general_bytes(dev
->nfc_dev
,
1908 rsp
->gt
, target_gt_len
);
1910 rc
= nfc_dep_link_is_up(dev
->nfc_dev
,
1911 dev
->nfc_dev
->targets
[0].idx
,
1912 0, NFC_RF_INITIATOR
);
1915 pn533_poll_reset_mod_list(dev
);
1918 dev_kfree_skb(resp
);
1922 #define PASSIVE_DATA_LEN 5
1923 static int pn533_poll_dep(struct nfc_dev
*nfc_dev
)
1925 struct pn533
*dev
= nfc_get_drvdata(nfc_dev
);
1926 struct sk_buff
*skb
;
1928 u8
*next
, nfcid3
[NFC_NFCID3_MAXSIZE
];
1929 u8 passive_data
[PASSIVE_DATA_LEN
] = {0x00, 0xff, 0xff, 0x00, 0x3};
1931 dev_dbg(&dev
->interface
->dev
, "%s", __func__
);
1934 dev
->gb
= nfc_get_local_general_bytes(nfc_dev
, &dev
->gb_len
);
1936 if (!dev
->gb
|| !dev
->gb_len
) {
1938 queue_work(dev
->wq
, &dev
->rf_work
);
1942 skb_len
= 3 + dev
->gb_len
; /* ActPass + BR + Next */
1943 skb_len
+= PASSIVE_DATA_LEN
;
1946 skb_len
+= NFC_NFCID3_MAXSIZE
;
1949 get_random_bytes(nfcid3
+ 2, 6);
1951 skb
= pn533_alloc_skb(dev
, skb_len
);
1955 *skb_put(skb
, 1) = 0x01; /* Active */
1956 *skb_put(skb
, 1) = 0x02; /* 424 kbps */
1958 next
= skb_put(skb
, 1); /* Next */
1961 /* Copy passive data */
1962 memcpy(skb_put(skb
, PASSIVE_DATA_LEN
), passive_data
, PASSIVE_DATA_LEN
);
1965 /* Copy NFCID3 (which is NFCID2 from SENSF_RES) */
1966 memcpy(skb_put(skb
, NFC_NFCID3_MAXSIZE
), nfcid3
,
1967 NFC_NFCID3_MAXSIZE
);
1970 memcpy(skb_put(skb
, dev
->gb_len
), dev
->gb
, dev
->gb_len
);
1971 *next
|= 4; /* We have some Gi */
1973 rc
= pn533_send_cmd_async(dev
, PN533_CMD_IN_JUMP_FOR_DEP
, skb
,
1974 pn533_poll_dep_complete
, NULL
);
1982 static int pn533_poll_complete(struct pn533
*dev
, void *arg
,
1983 struct sk_buff
*resp
)
1985 struct pn533_poll_modulations
*cur_mod
;
1988 dev_dbg(&dev
->interface
->dev
, "%s\n", __func__
);
1993 nfc_err(&dev
->interface
->dev
, "%s Poll complete error %d\n",
1996 if (rc
== -ENOENT
) {
1997 if (dev
->poll_mod_count
!= 0)
2001 } else if (rc
< 0) {
2002 nfc_err(&dev
->interface
->dev
,
2003 "Error %d when running poll\n", rc
);
2008 cur_mod
= dev
->poll_mod_active
[dev
->poll_mod_curr
];
2010 if (cur_mod
->len
== 0) { /* Target mode */
2011 del_timer(&dev
->listen_timer
);
2012 rc
= pn533_init_target_complete(dev
, resp
);
2016 /* Initiator mode */
2017 rc
= pn533_start_poll_complete(dev
, resp
);
2021 if (!dev
->poll_mod_count
) {
2022 dev_dbg(&dev
->interface
->dev
, "Polling has been stopped\n");
2026 pn533_poll_next_mod(dev
);
2027 /* Not target found, turn radio off */
2028 queue_work(dev
->wq
, &dev
->rf_work
);
2031 dev_kfree_skb(resp
);
2035 nfc_err(&dev
->interface
->dev
, "Polling operation has been stopped\n");
2037 pn533_poll_reset_mod_list(dev
);
2038 dev
->poll_protocols
= 0;
2042 static struct sk_buff
*pn533_alloc_poll_in_frame(struct pn533
*dev
,
2043 struct pn533_poll_modulations
*mod
)
2045 struct sk_buff
*skb
;
2047 skb
= pn533_alloc_skb(dev
, mod
->len
);
2051 memcpy(skb_put(skb
, mod
->len
), &mod
->data
, mod
->len
);
2056 static int pn533_send_poll_frame(struct pn533
*dev
)
2058 struct pn533_poll_modulations
*mod
;
2059 struct sk_buff
*skb
;
2063 mod
= dev
->poll_mod_active
[dev
->poll_mod_curr
];
2065 dev_dbg(&dev
->interface
->dev
, "%s mod len %d\n",
2066 __func__
, mod
->len
);
2068 if (dev
->poll_dep
) {
2070 return pn533_poll_dep(dev
->nfc_dev
);
2073 if (mod
->len
== 0) { /* Listen mode */
2074 cmd_code
= PN533_CMD_TG_INIT_AS_TARGET
;
2075 skb
= pn533_alloc_poll_tg_frame(dev
);
2076 } else { /* Polling mode */
2077 cmd_code
= PN533_CMD_IN_LIST_PASSIVE_TARGET
;
2078 skb
= pn533_alloc_poll_in_frame(dev
, mod
);
2082 nfc_err(&dev
->interface
->dev
, "Failed to allocate skb\n");
2086 rc
= pn533_send_cmd_async(dev
, cmd_code
, skb
, pn533_poll_complete
,
2090 nfc_err(&dev
->interface
->dev
, "Polling loop error %d\n", rc
);
2096 static void pn533_wq_poll(struct work_struct
*work
)
2098 struct pn533
*dev
= container_of(work
, struct pn533
, poll_work
.work
);
2099 struct pn533_poll_modulations
*cur_mod
;
2102 cur_mod
= dev
->poll_mod_active
[dev
->poll_mod_curr
];
2104 dev_dbg(&dev
->interface
->dev
,
2105 "%s cancel_listen %d modulation len %d\n",
2106 __func__
, dev
->cancel_listen
, cur_mod
->len
);
2108 if (dev
->cancel_listen
== 1) {
2109 dev
->cancel_listen
= 0;
2110 pn533_abort_cmd(dev
, GFP_ATOMIC
);
2113 rc
= pn533_send_poll_frame(dev
);
2117 if (cur_mod
->len
== 0 && dev
->poll_mod_count
> 1)
2118 mod_timer(&dev
->listen_timer
, jiffies
+ PN533_LISTEN_TIME
* HZ
);
2123 static int pn533_start_poll(struct nfc_dev
*nfc_dev
,
2124 u32 im_protocols
, u32 tm_protocols
)
2126 struct pn533
*dev
= nfc_get_drvdata(nfc_dev
);
2127 struct pn533_poll_modulations
*cur_mod
;
2131 dev_dbg(&dev
->interface
->dev
,
2132 "%s: im protocols 0x%x tm protocols 0x%x\n",
2133 __func__
, im_protocols
, tm_protocols
);
2135 if (dev
->tgt_active_prot
) {
2136 nfc_err(&dev
->interface
->dev
,
2137 "Cannot poll with a target already activated\n");
2141 if (dev
->tgt_mode
) {
2142 nfc_err(&dev
->interface
->dev
,
2143 "Cannot poll while already being activated\n");
2148 dev
->gb
= nfc_get_local_general_bytes(nfc_dev
, &dev
->gb_len
);
2149 if (dev
->gb
== NULL
)
2153 pn533_poll_create_mod_list(dev
, im_protocols
, tm_protocols
);
2154 dev
->poll_protocols
= im_protocols
;
2155 dev
->listen_protocols
= tm_protocols
;
2157 /* Do not always start polling from the same modulation */
2158 get_random_bytes(&rand_mod
, sizeof(rand_mod
));
2159 rand_mod
%= dev
->poll_mod_count
;
2160 dev
->poll_mod_curr
= rand_mod
;
2162 cur_mod
= dev
->poll_mod_active
[dev
->poll_mod_curr
];
2164 rc
= pn533_send_poll_frame(dev
);
2166 /* Start listen timer */
2167 if (!rc
&& cur_mod
->len
== 0 && dev
->poll_mod_count
> 1)
2168 mod_timer(&dev
->listen_timer
, jiffies
+ PN533_LISTEN_TIME
* HZ
);
2173 static void pn533_stop_poll(struct nfc_dev
*nfc_dev
)
2175 struct pn533
*dev
= nfc_get_drvdata(nfc_dev
);
2177 del_timer(&dev
->listen_timer
);
2179 if (!dev
->poll_mod_count
) {
2180 dev_dbg(&dev
->interface
->dev
,
2181 "Polling operation was not running\n");
2185 pn533_abort_cmd(dev
, GFP_KERNEL
);
2186 flush_delayed_work(&dev
->poll_work
);
2187 pn533_poll_reset_mod_list(dev
);
2190 static int pn533_activate_target_nfcdep(struct pn533
*dev
)
2192 struct pn533_cmd_activate_response
*rsp
;
2195 struct sk_buff
*skb
;
2196 struct sk_buff
*resp
;
2198 dev_dbg(&dev
->interface
->dev
, "%s\n", __func__
);
2200 skb
= pn533_alloc_skb(dev
, sizeof(u8
) * 2); /*TG + Next*/
2204 *skb_put(skb
, sizeof(u8
)) = 1; /* TG */
2205 *skb_put(skb
, sizeof(u8
)) = 0; /* Next */
2207 resp
= pn533_send_cmd_sync(dev
, PN533_CMD_IN_ATR
, skb
);
2209 return PTR_ERR(resp
);
2211 rsp
= (struct pn533_cmd_activate_response
*)resp
->data
;
2212 rc
= rsp
->status
& PN533_CMD_RET_MASK
;
2213 if (rc
!= PN533_CMD_RET_SUCCESS
) {
2214 nfc_err(&dev
->interface
->dev
,
2215 "Target activation failed (error 0x%x)\n", rc
);
2216 dev_kfree_skb(resp
);
2220 /* ATR_RES general bytes are located at offset 16 */
2221 gt_len
= resp
->len
- 16;
2222 rc
= nfc_set_remote_general_bytes(dev
->nfc_dev
, rsp
->gt
, gt_len
);
2224 dev_kfree_skb(resp
);
2228 static int pn533_activate_target(struct nfc_dev
*nfc_dev
,
2229 struct nfc_target
*target
, u32 protocol
)
2231 struct pn533
*dev
= nfc_get_drvdata(nfc_dev
);
2234 dev_dbg(&dev
->interface
->dev
, "%s: protocol=%u\n", __func__
, protocol
);
2236 if (dev
->poll_mod_count
) {
2237 nfc_err(&dev
->interface
->dev
,
2238 "Cannot activate while polling\n");
2242 if (dev
->tgt_active_prot
) {
2243 nfc_err(&dev
->interface
->dev
,
2244 "There is already an active target\n");
2248 if (!dev
->tgt_available_prots
) {
2249 nfc_err(&dev
->interface
->dev
,
2250 "There is no available target to activate\n");
2254 if (!(dev
->tgt_available_prots
& (1 << protocol
))) {
2255 nfc_err(&dev
->interface
->dev
,
2256 "Target doesn't support requested proto %u\n",
2261 if (protocol
== NFC_PROTO_NFC_DEP
) {
2262 rc
= pn533_activate_target_nfcdep(dev
);
2264 nfc_err(&dev
->interface
->dev
,
2265 "Activating target with DEP failed %d\n", rc
);
2270 dev
->tgt_active_prot
= protocol
;
2271 dev
->tgt_available_prots
= 0;
2276 static void pn533_deactivate_target(struct nfc_dev
*nfc_dev
,
2277 struct nfc_target
*target
)
2279 struct pn533
*dev
= nfc_get_drvdata(nfc_dev
);
2280 struct sk_buff
*skb
;
2281 struct sk_buff
*resp
;
2284 dev_dbg(&dev
->interface
->dev
, "%s\n", __func__
);
2286 if (!dev
->tgt_active_prot
) {
2287 nfc_err(&dev
->interface
->dev
, "There is no active target\n");
2291 dev
->tgt_active_prot
= 0;
2292 skb_queue_purge(&dev
->resp_q
);
2294 skb
= pn533_alloc_skb(dev
, sizeof(u8
));
2298 *skb_put(skb
, 1) = 1; /* TG*/
2300 resp
= pn533_send_cmd_sync(dev
, PN533_CMD_IN_RELEASE
, skb
);
2304 rc
= resp
->data
[0] & PN533_CMD_RET_MASK
;
2305 if (rc
!= PN533_CMD_RET_SUCCESS
)
2306 nfc_err(&dev
->interface
->dev
,
2307 "Error 0x%x when releasing the target\n", rc
);
2309 dev_kfree_skb(resp
);
2314 static int pn533_in_dep_link_up_complete(struct pn533
*dev
, void *arg
,
2315 struct sk_buff
*resp
)
2317 struct pn533_cmd_jump_dep_response
*rsp
;
2320 u8 active
= *(u8
*)arg
;
2325 return PTR_ERR(resp
);
2327 if (dev
->tgt_available_prots
&&
2328 !(dev
->tgt_available_prots
& (1 << NFC_PROTO_NFC_DEP
))) {
2329 nfc_err(&dev
->interface
->dev
,
2330 "The target does not support DEP\n");
2335 rsp
= (struct pn533_cmd_jump_dep_response
*)resp
->data
;
2337 rc
= rsp
->status
& PN533_CMD_RET_MASK
;
2338 if (rc
!= PN533_CMD_RET_SUCCESS
) {
2339 nfc_err(&dev
->interface
->dev
,
2340 "Bringing DEP link up failed (error 0x%x)\n", rc
);
2344 if (!dev
->tgt_available_prots
) {
2345 struct nfc_target nfc_target
;
2347 dev_dbg(&dev
->interface
->dev
, "Creating new target\n");
2349 nfc_target
.supported_protocols
= NFC_PROTO_NFC_DEP_MASK
;
2350 nfc_target
.nfcid1_len
= 10;
2351 memcpy(nfc_target
.nfcid1
, rsp
->nfcid3t
, nfc_target
.nfcid1_len
);
2352 rc
= nfc_targets_found(dev
->nfc_dev
, &nfc_target
, 1);
2356 dev
->tgt_available_prots
= 0;
2359 dev
->tgt_active_prot
= NFC_PROTO_NFC_DEP
;
2361 /* ATR_RES general bytes are located at offset 17 */
2362 target_gt_len
= resp
->len
- 17;
2363 rc
= nfc_set_remote_general_bytes(dev
->nfc_dev
,
2364 rsp
->gt
, target_gt_len
);
2366 rc
= nfc_dep_link_is_up(dev
->nfc_dev
,
2367 dev
->nfc_dev
->targets
[0].idx
,
2368 !active
, NFC_RF_INITIATOR
);
2371 dev_kfree_skb(resp
);
2375 static int pn533_rf_field(struct nfc_dev
*nfc_dev
, u8 rf
);
2376 static int pn533_dep_link_up(struct nfc_dev
*nfc_dev
, struct nfc_target
*target
,
2377 u8 comm_mode
, u8
*gb
, size_t gb_len
)
2379 struct pn533
*dev
= nfc_get_drvdata(nfc_dev
);
2380 struct sk_buff
*skb
;
2382 u8
*next
, *arg
, nfcid3
[NFC_NFCID3_MAXSIZE
];
2383 u8 passive_data
[PASSIVE_DATA_LEN
] = {0x00, 0xff, 0xff, 0x00, 0x3};
2385 dev_dbg(&dev
->interface
->dev
, "%s\n", __func__
);
2387 if (dev
->poll_mod_count
) {
2388 nfc_err(&dev
->interface
->dev
,
2389 "Cannot bring the DEP link up while polling\n");
2393 if (dev
->tgt_active_prot
) {
2394 nfc_err(&dev
->interface
->dev
,
2395 "There is already an active target\n");
2399 skb_len
= 3 + gb_len
; /* ActPass + BR + Next */
2400 skb_len
+= PASSIVE_DATA_LEN
;
2403 skb_len
+= NFC_NFCID3_MAXSIZE
;
2404 if (target
&& !target
->nfcid2_len
) {
2407 get_random_bytes(nfcid3
+ 2, 6);
2410 skb
= pn533_alloc_skb(dev
, skb_len
);
2414 *skb_put(skb
, 1) = !comm_mode
; /* ActPass */
2415 *skb_put(skb
, 1) = 0x02; /* 424 kbps */
2417 next
= skb_put(skb
, 1); /* Next */
2420 /* Copy passive data */
2421 memcpy(skb_put(skb
, PASSIVE_DATA_LEN
), passive_data
, PASSIVE_DATA_LEN
);
2424 /* Copy NFCID3 (which is NFCID2 from SENSF_RES) */
2425 if (target
&& target
->nfcid2_len
)
2426 memcpy(skb_put(skb
, NFC_NFCID3_MAXSIZE
), target
->nfcid2
,
2427 target
->nfcid2_len
);
2429 memcpy(skb_put(skb
, NFC_NFCID3_MAXSIZE
), nfcid3
,
2430 NFC_NFCID3_MAXSIZE
);
2433 if (gb
!= NULL
&& gb_len
> 0) {
2434 memcpy(skb_put(skb
, gb_len
), gb
, gb_len
);
2435 *next
|= 4; /* We have some Gi */
2440 arg
= kmalloc(sizeof(*arg
), GFP_KERNEL
);
2448 pn533_rf_field(dev
->nfc_dev
, 0);
2450 rc
= pn533_send_cmd_async(dev
, PN533_CMD_IN_JUMP_FOR_DEP
, skb
,
2451 pn533_in_dep_link_up_complete
, arg
);
2461 static int pn533_dep_link_down(struct nfc_dev
*nfc_dev
)
2463 struct pn533
*dev
= nfc_get_drvdata(nfc_dev
);
2465 dev_dbg(&dev
->interface
->dev
, "%s\n", __func__
);
2467 pn533_poll_reset_mod_list(dev
);
2469 if (dev
->tgt_mode
|| dev
->tgt_active_prot
)
2470 pn533_abort_cmd(dev
, GFP_KERNEL
);
2472 dev
->tgt_active_prot
= 0;
2475 skb_queue_purge(&dev
->resp_q
);
2480 struct pn533_data_exchange_arg
{
2481 data_exchange_cb_t cb
;
2485 static struct sk_buff
*pn533_build_response(struct pn533
*dev
)
2487 struct sk_buff
*skb
, *tmp
, *t
;
2488 unsigned int skb_len
= 0, tmp_len
= 0;
2490 dev_dbg(&dev
->interface
->dev
, "%s\n", __func__
);
2492 if (skb_queue_empty(&dev
->resp_q
))
2495 if (skb_queue_len(&dev
->resp_q
) == 1) {
2496 skb
= skb_dequeue(&dev
->resp_q
);
2500 skb_queue_walk_safe(&dev
->resp_q
, tmp
, t
)
2501 skb_len
+= tmp
->len
;
2503 dev_dbg(&dev
->interface
->dev
, "%s total length %d\n",
2506 skb
= alloc_skb(skb_len
, GFP_KERNEL
);
2510 skb_put(skb
, skb_len
);
2512 skb_queue_walk_safe(&dev
->resp_q
, tmp
, t
) {
2513 memcpy(skb
->data
+ tmp_len
, tmp
->data
, tmp
->len
);
2514 tmp_len
+= tmp
->len
;
2518 skb_queue_purge(&dev
->resp_q
);
2523 static int pn533_data_exchange_complete(struct pn533
*dev
, void *_arg
,
2524 struct sk_buff
*resp
)
2526 struct pn533_data_exchange_arg
*arg
= _arg
;
2527 struct sk_buff
*skb
;
2531 dev_dbg(&dev
->interface
->dev
, "%s\n", __func__
);
2538 status
= resp
->data
[0];
2539 ret
= status
& PN533_CMD_RET_MASK
;
2540 mi
= status
& PN533_CMD_MI_MASK
;
2542 skb_pull(resp
, sizeof(status
));
2544 if (ret
!= PN533_CMD_RET_SUCCESS
) {
2545 nfc_err(&dev
->interface
->dev
,
2546 "Exchanging data failed (error 0x%x)\n", ret
);
2551 skb_queue_tail(&dev
->resp_q
, resp
);
2554 dev
->cmd_complete_mi_arg
= arg
;
2555 queue_work(dev
->wq
, &dev
->mi_rx_work
);
2556 return -EINPROGRESS
;
2559 /* Prepare for the next round */
2560 if (skb_queue_len(&dev
->fragment_skb
) > 0) {
2561 dev
->cmd_complete_dep_arg
= arg
;
2562 queue_work(dev
->wq
, &dev
->mi_tx_work
);
2564 return -EINPROGRESS
;
2567 skb
= pn533_build_response(dev
);
2571 arg
->cb(arg
->cb_context
, skb
, 0);
2576 dev_kfree_skb(resp
);
2578 skb_queue_purge(&dev
->resp_q
);
2579 arg
->cb(arg
->cb_context
, NULL
, rc
);
2584 /* Split the Tx skb into small chunks */
2585 static int pn533_fill_fragment_skbs(struct pn533
*dev
, struct sk_buff
*skb
)
2587 struct sk_buff
*frag
;
2591 /* Remaining size */
2592 if (skb
->len
> PN533_CMD_DATAFRAME_MAXLEN
)
2593 frag_size
= PN533_CMD_DATAFRAME_MAXLEN
;
2595 frag_size
= skb
->len
;
2597 /* Allocate and reserve */
2598 frag
= pn533_alloc_skb(dev
, frag_size
);
2600 skb_queue_purge(&dev
->fragment_skb
);
2604 if (!dev
->tgt_mode
) {
2605 /* Reserve the TG/MI byte */
2606 skb_reserve(frag
, 1);
2609 if (frag_size
== PN533_CMD_DATAFRAME_MAXLEN
)
2610 *skb_push(frag
, sizeof(u8
)) =
2611 (PN533_CMD_MI_MASK
| 1);
2613 *skb_push(frag
, sizeof(u8
)) = 1; /* TG */
2616 memcpy(skb_put(frag
, frag_size
), skb
->data
, frag_size
);
2618 /* Reduce the size of incoming buffer */
2619 skb_pull(skb
, frag_size
);
2621 /* Add this to skb_queue */
2622 skb_queue_tail(&dev
->fragment_skb
, frag
);
2624 } while (skb
->len
> 0);
2628 return skb_queue_len(&dev
->fragment_skb
);
2631 static int pn533_transceive(struct nfc_dev
*nfc_dev
,
2632 struct nfc_target
*target
, struct sk_buff
*skb
,
2633 data_exchange_cb_t cb
, void *cb_context
)
2635 struct pn533
*dev
= nfc_get_drvdata(nfc_dev
);
2636 struct pn533_data_exchange_arg
*arg
= NULL
;
2639 dev_dbg(&dev
->interface
->dev
, "%s\n", __func__
);
2641 if (!dev
->tgt_active_prot
) {
2642 nfc_err(&dev
->interface
->dev
,
2643 "Can't exchange data if there is no active target\n");
2648 arg
= kmalloc(sizeof(*arg
), GFP_KERNEL
);
2655 arg
->cb_context
= cb_context
;
2657 switch (dev
->device_type
) {
2658 case PN533_DEVICE_PASORI
:
2659 if (dev
->tgt_active_prot
== NFC_PROTO_FELICA
) {
2660 rc
= pn533_send_data_async(dev
, PN533_CMD_IN_COMM_THRU
,
2662 pn533_data_exchange_complete
,
2669 if (skb
->len
> PN533_CMD_DATAEXCH_DATA_MAXLEN
) {
2670 rc
= pn533_fill_fragment_skbs(dev
, skb
);
2674 skb
= skb_dequeue(&dev
->fragment_skb
);
2680 *skb_push(skb
, sizeof(u8
)) = 1; /* TG */
2683 rc
= pn533_send_data_async(dev
, PN533_CMD_IN_DATA_EXCHANGE
,
2684 skb
, pn533_data_exchange_complete
,
2690 if (rc
< 0) /* rc from send_async */
2701 static int pn533_tm_send_complete(struct pn533
*dev
, void *arg
,
2702 struct sk_buff
*resp
)
2706 dev_dbg(&dev
->interface
->dev
, "%s\n", __func__
);
2709 return PTR_ERR(resp
);
2711 status
= resp
->data
[0];
2713 /* Prepare for the next round */
2714 if (skb_queue_len(&dev
->fragment_skb
) > 0) {
2715 queue_work(dev
->wq
, &dev
->mi_tm_tx_work
);
2716 return -EINPROGRESS
;
2718 dev_kfree_skb(resp
);
2721 nfc_tm_deactivated(dev
->nfc_dev
);
2728 queue_work(dev
->wq
, &dev
->tg_work
);
2733 static int pn533_tm_send(struct nfc_dev
*nfc_dev
, struct sk_buff
*skb
)
2735 struct pn533
*dev
= nfc_get_drvdata(nfc_dev
);
2738 dev_dbg(&dev
->interface
->dev
, "%s\n", __func__
);
2740 /* let's split in multiple chunks if size's too big */
2741 if (skb
->len
> PN533_CMD_DATAEXCH_DATA_MAXLEN
) {
2742 rc
= pn533_fill_fragment_skbs(dev
, skb
);
2746 /* get the first skb */
2747 skb
= skb_dequeue(&dev
->fragment_skb
);
2753 rc
= pn533_send_data_async(dev
, PN533_CMD_TG_SET_META_DATA
, skb
,
2754 pn533_tm_send_complete
, NULL
);
2757 rc
= pn533_send_data_async(dev
, PN533_CMD_TG_SET_DATA
, skb
,
2758 pn533_tm_send_complete
, NULL
);
2764 skb_queue_purge(&dev
->fragment_skb
);
2770 static void pn533_wq_mi_recv(struct work_struct
*work
)
2772 struct pn533
*dev
= container_of(work
, struct pn533
, mi_rx_work
);
2773 struct sk_buff
*skb
;
2776 dev_dbg(&dev
->interface
->dev
, "%s\n", __func__
);
2778 skb
= pn533_alloc_skb(dev
, PN533_CMD_DATAEXCH_HEAD_LEN
);
2782 switch (dev
->device_type
) {
2783 case PN533_DEVICE_PASORI
:
2784 if (dev
->tgt_active_prot
== NFC_PROTO_FELICA
) {
2785 rc
= pn533_send_cmd_direct_async(dev
,
2786 PN533_CMD_IN_COMM_THRU
,
2788 pn533_data_exchange_complete
,
2789 dev
->cmd_complete_mi_arg
);
2794 *skb_put(skb
, sizeof(u8
)) = 1; /*TG*/
2796 rc
= pn533_send_cmd_direct_async(dev
,
2797 PN533_CMD_IN_DATA_EXCHANGE
,
2799 pn533_data_exchange_complete
,
2800 dev
->cmd_complete_mi_arg
);
2805 if (rc
== 0) /* success */
2808 nfc_err(&dev
->interface
->dev
,
2809 "Error %d when trying to perform data_exchange\n", rc
);
2812 kfree(dev
->cmd_complete_mi_arg
);
2815 pn533_send_ack(dev
, GFP_KERNEL
);
2816 queue_work(dev
->wq
, &dev
->cmd_work
);
2819 static void pn533_wq_mi_send(struct work_struct
*work
)
2821 struct pn533
*dev
= container_of(work
, struct pn533
, mi_tx_work
);
2822 struct sk_buff
*skb
;
2825 dev_dbg(&dev
->interface
->dev
, "%s\n", __func__
);
2827 /* Grab the first skb in the queue */
2828 skb
= skb_dequeue(&dev
->fragment_skb
);
2830 if (skb
== NULL
) { /* No more data */
2831 /* Reset the queue for future use */
2832 skb_queue_head_init(&dev
->fragment_skb
);
2836 switch (dev
->device_type
) {
2837 case PN533_DEVICE_PASORI
:
2838 if (dev
->tgt_active_prot
!= NFC_PROTO_FELICA
) {
2843 rc
= pn533_send_cmd_direct_async(dev
, PN533_CMD_IN_COMM_THRU
,
2845 pn533_data_exchange_complete
,
2846 dev
->cmd_complete_dep_arg
);
2851 /* Still some fragments? */
2852 rc
= pn533_send_cmd_direct_async(dev
,PN533_CMD_IN_DATA_EXCHANGE
,
2854 pn533_data_exchange_complete
,
2855 dev
->cmd_complete_dep_arg
);
2860 if (rc
== 0) /* success */
2863 nfc_err(&dev
->interface
->dev
,
2864 "Error %d when trying to perform data_exchange\n", rc
);
2867 kfree(dev
->cmd_complete_dep_arg
);
2870 pn533_send_ack(dev
, GFP_KERNEL
);
2871 queue_work(dev
->wq
, &dev
->cmd_work
);
2874 static int pn533_set_configuration(struct pn533
*dev
, u8 cfgitem
, u8
*cfgdata
,
2877 struct sk_buff
*skb
;
2878 struct sk_buff
*resp
;
2881 dev_dbg(&dev
->interface
->dev
, "%s\n", __func__
);
2883 skb_len
= sizeof(cfgitem
) + cfgdata_len
; /* cfgitem + cfgdata */
2885 skb
= pn533_alloc_skb(dev
, skb_len
);
2889 *skb_put(skb
, sizeof(cfgitem
)) = cfgitem
;
2890 memcpy(skb_put(skb
, cfgdata_len
), cfgdata
, cfgdata_len
);
2892 resp
= pn533_send_cmd_sync(dev
, PN533_CMD_RF_CONFIGURATION
, skb
);
2894 return PTR_ERR(resp
);
2896 dev_kfree_skb(resp
);
2900 static int pn533_get_firmware_version(struct pn533
*dev
,
2901 struct pn533_fw_version
*fv
)
2903 struct sk_buff
*skb
;
2904 struct sk_buff
*resp
;
2906 skb
= pn533_alloc_skb(dev
, 0);
2910 resp
= pn533_send_cmd_sync(dev
, PN533_CMD_GET_FIRMWARE_VERSION
, skb
);
2912 return PTR_ERR(resp
);
2914 fv
->ic
= resp
->data
[0];
2915 fv
->ver
= resp
->data
[1];
2916 fv
->rev
= resp
->data
[2];
2917 fv
->support
= resp
->data
[3];
2919 dev_kfree_skb(resp
);
2923 static int pn533_pasori_fw_reset(struct pn533
*dev
)
2925 struct sk_buff
*skb
;
2926 struct sk_buff
*resp
;
2928 dev_dbg(&dev
->interface
->dev
, "%s\n", __func__
);
2930 skb
= pn533_alloc_skb(dev
, sizeof(u8
));
2934 *skb_put(skb
, sizeof(u8
)) = 0x1;
2936 resp
= pn533_send_cmd_sync(dev
, 0x18, skb
);
2938 return PTR_ERR(resp
);
2940 dev_kfree_skb(resp
);
2945 struct pn533_acr122_poweron_rdr_arg
{
2947 struct completion done
;
2950 static void pn533_acr122_poweron_rdr_resp(struct urb
*urb
)
2952 struct pn533_acr122_poweron_rdr_arg
*arg
= urb
->context
;
2954 dev_dbg(&urb
->dev
->dev
, "%s\n", __func__
);
2956 print_hex_dump_debug("ACR122 RX: ", DUMP_PREFIX_NONE
, 16, 1,
2957 urb
->transfer_buffer
, urb
->transfer_buffer_length
,
2960 arg
->rc
= urb
->status
;
2961 complete(&arg
->done
);
2964 static int pn533_acr122_poweron_rdr(struct pn533
*dev
)
2966 /* Power on th reader (CCID cmd) */
2967 u8 cmd
[10] = {PN533_ACR122_PC_TO_RDR_ICCPOWERON
,
2968 0, 0, 0, 0, 0, 0, 3, 0, 0};
2972 struct pn533_acr122_poweron_rdr_arg arg
;
2974 dev_dbg(&dev
->interface
->dev
, "%s\n", __func__
);
2976 init_completion(&arg
.done
);
2977 cntx
= dev
->in_urb
->context
; /* backup context */
2979 dev
->in_urb
->transfer_buffer
= buf
;
2980 dev
->in_urb
->transfer_buffer_length
= 255;
2981 dev
->in_urb
->complete
= pn533_acr122_poweron_rdr_resp
;
2982 dev
->in_urb
->context
= &arg
;
2984 dev
->out_urb
->transfer_buffer
= cmd
;
2985 dev
->out_urb
->transfer_buffer_length
= sizeof(cmd
);
2987 print_hex_dump_debug("ACR122 TX: ", DUMP_PREFIX_NONE
, 16, 1,
2988 cmd
, sizeof(cmd
), false);
2990 rc
= usb_submit_urb(dev
->out_urb
, GFP_KERNEL
);
2992 nfc_err(&dev
->interface
->dev
,
2993 "Reader power on cmd error %d\n", rc
);
2997 rc
= usb_submit_urb(dev
->in_urb
, GFP_KERNEL
);
2999 nfc_err(&dev
->interface
->dev
,
3000 "Can't submit reader poweron cmd response %d\n", rc
);
3004 wait_for_completion(&arg
.done
);
3005 dev
->in_urb
->context
= cntx
; /* restore context */
3010 static int pn533_rf_field(struct nfc_dev
*nfc_dev
, u8 rf
)
3012 struct pn533
*dev
= nfc_get_drvdata(nfc_dev
);
3016 rf_field
|= PN533_CFGITEM_RF_FIELD_AUTO_RFCA
;
3018 rc
= pn533_set_configuration(dev
, PN533_CFGITEM_RF_FIELD
,
3019 (u8
*)&rf_field
, 1);
3021 nfc_err(&dev
->interface
->dev
, "Error on setting RF field\n");
3028 static int pn533_dev_up(struct nfc_dev
*nfc_dev
)
3030 return pn533_rf_field(nfc_dev
, 1);
3033 static int pn533_dev_down(struct nfc_dev
*nfc_dev
)
3035 return pn533_rf_field(nfc_dev
, 0);
3038 static struct nfc_ops pn533_nfc_ops
= {
3039 .dev_up
= pn533_dev_up
,
3040 .dev_down
= pn533_dev_down
,
3041 .dep_link_up
= pn533_dep_link_up
,
3042 .dep_link_down
= pn533_dep_link_down
,
3043 .start_poll
= pn533_start_poll
,
3044 .stop_poll
= pn533_stop_poll
,
3045 .activate_target
= pn533_activate_target
,
3046 .deactivate_target
= pn533_deactivate_target
,
3047 .im_transceive
= pn533_transceive
,
3048 .tm_send
= pn533_tm_send
,
3051 static int pn533_setup(struct pn533
*dev
)
3053 struct pn533_config_max_retries max_retries
;
3054 struct pn533_config_timing timing
;
3055 u8 pasori_cfg
[3] = {0x08, 0x01, 0x08};
3058 switch (dev
->device_type
) {
3059 case PN533_DEVICE_STD
:
3060 case PN533_DEVICE_PASORI
:
3061 case PN533_DEVICE_ACR122U
:
3062 max_retries
.mx_rty_atr
= 0x2;
3063 max_retries
.mx_rty_psl
= 0x1;
3064 max_retries
.mx_rty_passive_act
=
3065 PN533_CONFIG_MAX_RETRIES_NO_RETRY
;
3067 timing
.rfu
= PN533_CONFIG_TIMING_102
;
3068 timing
.atr_res_timeout
= PN533_CONFIG_TIMING_102
;
3069 timing
.dep_timeout
= PN533_CONFIG_TIMING_204
;
3074 nfc_err(&dev
->interface
->dev
, "Unknown device type %d\n",
3079 rc
= pn533_set_configuration(dev
, PN533_CFGITEM_MAX_RETRIES
,
3080 (u8
*)&max_retries
, sizeof(max_retries
));
3082 nfc_err(&dev
->interface
->dev
,
3083 "Error on setting MAX_RETRIES config\n");
3088 rc
= pn533_set_configuration(dev
, PN533_CFGITEM_TIMING
,
3089 (u8
*)&timing
, sizeof(timing
));
3091 nfc_err(&dev
->interface
->dev
, "Error on setting RF timings\n");
3095 switch (dev
->device_type
) {
3096 case PN533_DEVICE_STD
:
3099 case PN533_DEVICE_PASORI
:
3100 pn533_pasori_fw_reset(dev
);
3102 rc
= pn533_set_configuration(dev
, PN533_CFGITEM_PASORI
,
3105 nfc_err(&dev
->interface
->dev
,
3106 "Error while settings PASORI config\n");
3110 pn533_pasori_fw_reset(dev
);
3118 static int pn533_probe(struct usb_interface
*interface
,
3119 const struct usb_device_id
*id
)
3121 struct pn533_fw_version fw_ver
;
3123 struct usb_host_interface
*iface_desc
;
3124 struct usb_endpoint_descriptor
*endpoint
;
3125 int in_endpoint
= 0;
3126 int out_endpoint
= 0;
3131 dev
= kzalloc(sizeof(*dev
), GFP_KERNEL
);
3135 dev
->udev
= usb_get_dev(interface_to_usbdev(interface
));
3136 dev
->interface
= interface
;
3137 mutex_init(&dev
->cmd_lock
);
3139 iface_desc
= interface
->cur_altsetting
;
3140 for (i
= 0; i
< iface_desc
->desc
.bNumEndpoints
; ++i
) {
3141 endpoint
= &iface_desc
->endpoint
[i
].desc
;
3143 if (!in_endpoint
&& usb_endpoint_is_bulk_in(endpoint
))
3144 in_endpoint
= endpoint
->bEndpointAddress
;
3146 if (!out_endpoint
&& usb_endpoint_is_bulk_out(endpoint
))
3147 out_endpoint
= endpoint
->bEndpointAddress
;
3150 if (!in_endpoint
|| !out_endpoint
) {
3151 nfc_err(&interface
->dev
,
3152 "Could not find bulk-in or bulk-out endpoint\n");
3157 dev
->in_urb
= usb_alloc_urb(0, GFP_KERNEL
);
3158 dev
->out_urb
= usb_alloc_urb(0, GFP_KERNEL
);
3160 if (!dev
->in_urb
|| !dev
->out_urb
)
3163 usb_fill_bulk_urb(dev
->in_urb
, dev
->udev
,
3164 usb_rcvbulkpipe(dev
->udev
, in_endpoint
),
3165 NULL
, 0, NULL
, dev
);
3166 usb_fill_bulk_urb(dev
->out_urb
, dev
->udev
,
3167 usb_sndbulkpipe(dev
->udev
, out_endpoint
),
3168 NULL
, 0, pn533_send_complete
, dev
);
3170 INIT_WORK(&dev
->cmd_work
, pn533_wq_cmd
);
3171 INIT_WORK(&dev
->cmd_complete_work
, pn533_wq_cmd_complete
);
3172 INIT_WORK(&dev
->mi_rx_work
, pn533_wq_mi_recv
);
3173 INIT_WORK(&dev
->mi_tx_work
, pn533_wq_mi_send
);
3174 INIT_WORK(&dev
->tg_work
, pn533_wq_tg_get_data
);
3175 INIT_WORK(&dev
->mi_tm_rx_work
, pn533_wq_tm_mi_recv
);
3176 INIT_WORK(&dev
->mi_tm_tx_work
, pn533_wq_tm_mi_send
);
3177 INIT_DELAYED_WORK(&dev
->poll_work
, pn533_wq_poll
);
3178 INIT_WORK(&dev
->rf_work
, pn533_wq_rf
);
3179 dev
->wq
= alloc_ordered_workqueue("pn533", 0);
3180 if (dev
->wq
== NULL
)
3183 init_timer(&dev
->listen_timer
);
3184 dev
->listen_timer
.data
= (unsigned long) dev
;
3185 dev
->listen_timer
.function
= pn533_listen_mode_timer
;
3187 skb_queue_head_init(&dev
->resp_q
);
3188 skb_queue_head_init(&dev
->fragment_skb
);
3190 INIT_LIST_HEAD(&dev
->cmd_queue
);
3192 usb_set_intfdata(interface
, dev
);
3194 dev
->ops
= &pn533_std_frame_ops
;
3196 dev
->protocol_type
= PN533_PROTO_REQ_ACK_RESP
;
3197 dev
->device_type
= id
->driver_info
;
3198 switch (dev
->device_type
) {
3199 case PN533_DEVICE_STD
:
3200 protocols
= PN533_ALL_PROTOCOLS
;
3203 case PN533_DEVICE_PASORI
:
3204 protocols
= PN533_NO_TYPE_B_PROTOCOLS
;
3207 case PN533_DEVICE_ACR122U
:
3208 protocols
= PN533_NO_TYPE_B_PROTOCOLS
;
3209 dev
->ops
= &pn533_acr122_frame_ops
;
3210 dev
->protocol_type
= PN533_PROTO_REQ_RESP
,
3212 rc
= pn533_acr122_poweron_rdr(dev
);
3214 nfc_err(&dev
->interface
->dev
,
3215 "Couldn't poweron the reader (error %d)\n", rc
);
3221 nfc_err(&dev
->interface
->dev
, "Unknown device type %d\n",
3227 memset(&fw_ver
, 0, sizeof(fw_ver
));
3228 rc
= pn533_get_firmware_version(dev
, &fw_ver
);
3232 nfc_info(&dev
->interface
->dev
,
3233 "NXP PN5%02X firmware ver %d.%d now attached\n",
3234 fw_ver
.ic
, fw_ver
.ver
, fw_ver
.rev
);
3237 dev
->nfc_dev
= nfc_allocate_device(&pn533_nfc_ops
, protocols
,
3238 dev
->ops
->tx_header_len
+
3239 PN533_CMD_DATAEXCH_HEAD_LEN
,
3240 dev
->ops
->tx_tail_len
);
3241 if (!dev
->nfc_dev
) {
3246 nfc_set_parent_dev(dev
->nfc_dev
, &interface
->dev
);
3247 nfc_set_drvdata(dev
->nfc_dev
, dev
);
3249 rc
= nfc_register_device(dev
->nfc_dev
);
3253 rc
= pn533_setup(dev
);
3255 goto unregister_nfc_dev
;
3260 nfc_unregister_device(dev
->nfc_dev
);
3263 nfc_free_device(dev
->nfc_dev
);
3266 destroy_workqueue(dev
->wq
);
3268 usb_free_urb(dev
->in_urb
);
3269 usb_free_urb(dev
->out_urb
);
3270 usb_put_dev(dev
->udev
);
3275 static void pn533_disconnect(struct usb_interface
*interface
)
3278 struct pn533_cmd
*cmd
, *n
;
3280 dev
= usb_get_intfdata(interface
);
3281 usb_set_intfdata(interface
, NULL
);
3283 nfc_unregister_device(dev
->nfc_dev
);
3284 nfc_free_device(dev
->nfc_dev
);
3286 usb_kill_urb(dev
->in_urb
);
3287 usb_kill_urb(dev
->out_urb
);
3289 flush_delayed_work(&dev
->poll_work
);
3290 destroy_workqueue(dev
->wq
);
3292 skb_queue_purge(&dev
->resp_q
);
3294 del_timer(&dev
->listen_timer
);
3296 list_for_each_entry_safe(cmd
, n
, &dev
->cmd_queue
, queue
) {
3297 list_del(&cmd
->queue
);
3301 usb_free_urb(dev
->in_urb
);
3302 usb_free_urb(dev
->out_urb
);
3305 nfc_info(&interface
->dev
, "NXP PN533 NFC device disconnected\n");
3308 static struct usb_driver pn533_driver
= {
3310 .probe
= pn533_probe
,
3311 .disconnect
= pn533_disconnect
,
3312 .id_table
= pn533_table
,
3315 module_usb_driver(pn533_driver
);
3317 MODULE_AUTHOR("Lauro Ramos Venancio <lauro.venancio@openbossa.org>");
3318 MODULE_AUTHOR("Aloisio Almeida Jr <aloisio.almeida@openbossa.org>");
3319 MODULE_AUTHOR("Waldemar Rymarkiewicz <waldemar.rymarkiewicz@tieto.com>");
3320 MODULE_DESCRIPTION("PN533 usb driver ver " VERSION
);
3321 MODULE_VERSION(VERSION
);
3322 MODULE_LICENSE("GPL");