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, see <http://www.gnu.org/licenses/>.
19 #include <linux/device.h>
20 #include <linux/kernel.h>
21 #include <linux/module.h>
22 #include <linux/slab.h>
23 #include <linux/usb.h>
24 #include <linux/nfc.h>
25 #include <linux/netdevice.h>
26 #include <net/nfc/nfc.h>
30 #define PN533_VENDOR_ID 0x4CC
31 #define PN533_PRODUCT_ID 0x2533
33 #define SCM_VENDOR_ID 0x4E6
34 #define SCL3711_PRODUCT_ID 0x5591
36 #define SONY_VENDOR_ID 0x054c
37 #define PASORI_PRODUCT_ID 0x02e1
39 #define ACS_VENDOR_ID 0x072f
40 #define ACR122U_PRODUCT_ID 0x2200
42 #define PN533_DEVICE_STD 0x1
43 #define PN533_DEVICE_PASORI 0x2
44 #define PN533_DEVICE_ACR122U 0x3
46 #define PN533_ALL_PROTOCOLS (NFC_PROTO_JEWEL_MASK | NFC_PROTO_MIFARE_MASK |\
47 NFC_PROTO_FELICA_MASK | NFC_PROTO_ISO14443_MASK |\
48 NFC_PROTO_NFC_DEP_MASK |\
49 NFC_PROTO_ISO14443_B_MASK)
51 #define PN533_NO_TYPE_B_PROTOCOLS (NFC_PROTO_JEWEL_MASK | \
52 NFC_PROTO_MIFARE_MASK | \
53 NFC_PROTO_FELICA_MASK | \
54 NFC_PROTO_ISO14443_MASK | \
55 NFC_PROTO_NFC_DEP_MASK)
57 static const struct usb_device_id pn533_table
[] = {
58 { .match_flags
= USB_DEVICE_ID_MATCH_DEVICE
,
59 .idVendor
= PN533_VENDOR_ID
,
60 .idProduct
= PN533_PRODUCT_ID
,
61 .driver_info
= PN533_DEVICE_STD
,
63 { .match_flags
= USB_DEVICE_ID_MATCH_DEVICE
,
64 .idVendor
= SCM_VENDOR_ID
,
65 .idProduct
= SCL3711_PRODUCT_ID
,
66 .driver_info
= PN533_DEVICE_STD
,
68 { .match_flags
= USB_DEVICE_ID_MATCH_DEVICE
,
69 .idVendor
= SONY_VENDOR_ID
,
70 .idProduct
= PASORI_PRODUCT_ID
,
71 .driver_info
= PN533_DEVICE_PASORI
,
73 { .match_flags
= USB_DEVICE_ID_MATCH_DEVICE
,
74 .idVendor
= ACS_VENDOR_ID
,
75 .idProduct
= ACR122U_PRODUCT_ID
,
76 .driver_info
= PN533_DEVICE_ACR122U
,
80 MODULE_DEVICE_TABLE(usb
, pn533_table
);
82 /* How much time we spend listening for initiators */
83 #define PN533_LISTEN_TIME 2
84 /* Delay between each poll frame (ms) */
85 #define PN533_POLL_INTERVAL 10
87 /* Standard pn533 frame definitions (standard and extended)*/
88 #define PN533_STD_FRAME_HEADER_LEN (sizeof(struct pn533_std_frame) \
89 + 2) /* data[0] TFI, data[1] CC */
90 #define PN533_STD_FRAME_TAIL_LEN 2 /* data[len] DCS, data[len + 1] postamble*/
92 #define PN533_EXT_FRAME_HEADER_LEN (sizeof(struct pn533_ext_frame) \
93 + 2) /* data[0] TFI, data[1] CC */
95 #define PN533_CMD_DATAEXCH_DATA_MAXLEN 262
96 #define PN533_CMD_DATAFRAME_MAXLEN 240 /* max data length (send) */
99 * Max extended frame payload len, excluding TFI and CC
100 * which are already in PN533_FRAME_HEADER_LEN.
102 #define PN533_STD_FRAME_MAX_PAYLOAD_LEN 263
104 #define PN533_STD_FRAME_ACK_SIZE 6 /* Preamble (1), SoPC (2), ACK Code (2),
106 #define PN533_STD_FRAME_CHECKSUM(f) (f->data[f->datalen])
107 #define PN533_STD_FRAME_POSTAMBLE(f) (f->data[f->datalen + 1])
108 /* Half start code (3), LEN (4) should be 0xffff for extended frame */
109 #define PN533_STD_IS_EXTENDED(hdr) ((hdr)->datalen == 0xFF \
110 && (hdr)->datalen_checksum == 0xFF)
111 #define PN533_EXT_FRAME_CHECKSUM(f) (f->data[be16_to_cpu(f->datalen)])
114 #define PN533_STD_FRAME_SOF 0x00FF
116 /* standard frame identifier: in/out/error */
117 #define PN533_STD_FRAME_IDENTIFIER(f) (f->data[0]) /* TFI */
118 #define PN533_STD_FRAME_DIR_OUT 0xD4
119 #define PN533_STD_FRAME_DIR_IN 0xD5
121 /* ACS ACR122 pn533 frame definitions */
122 #define PN533_ACR122_TX_FRAME_HEADER_LEN (sizeof(struct pn533_acr122_tx_frame) \
124 #define PN533_ACR122_TX_FRAME_TAIL_LEN 0
125 #define PN533_ACR122_RX_FRAME_HEADER_LEN (sizeof(struct pn533_acr122_rx_frame) \
127 #define PN533_ACR122_RX_FRAME_TAIL_LEN 2
128 #define PN533_ACR122_FRAME_MAX_PAYLOAD_LEN PN533_STD_FRAME_MAX_PAYLOAD_LEN
130 /* CCID messages types */
131 #define PN533_ACR122_PC_TO_RDR_ICCPOWERON 0x62
132 #define PN533_ACR122_PC_TO_RDR_ESCAPE 0x6B
134 #define PN533_ACR122_RDR_TO_PC_ESCAPE 0x83
137 #define PN533_FRAME_CMD(f) (f->data[1])
139 #define PN533_CMD_GET_FIRMWARE_VERSION 0x02
140 #define PN533_CMD_RF_CONFIGURATION 0x32
141 #define PN533_CMD_IN_DATA_EXCHANGE 0x40
142 #define PN533_CMD_IN_COMM_THRU 0x42
143 #define PN533_CMD_IN_LIST_PASSIVE_TARGET 0x4A
144 #define PN533_CMD_IN_ATR 0x50
145 #define PN533_CMD_IN_RELEASE 0x52
146 #define PN533_CMD_IN_JUMP_FOR_DEP 0x56
148 #define PN533_CMD_TG_INIT_AS_TARGET 0x8c
149 #define PN533_CMD_TG_GET_DATA 0x86
150 #define PN533_CMD_TG_SET_DATA 0x8e
151 #define PN533_CMD_TG_SET_META_DATA 0x94
152 #define PN533_CMD_UNDEF 0xff
154 #define PN533_CMD_RESPONSE(cmd) (cmd + 1)
156 /* PN533 Return codes */
157 #define PN533_CMD_RET_MASK 0x3F
158 #define PN533_CMD_MI_MASK 0x40
159 #define PN533_CMD_RET_SUCCESS 0x00
163 typedef int (*pn533_send_async_complete_t
) (struct pn533
*dev
, void *arg
,
164 struct sk_buff
*resp
);
166 /* structs for pn533 commands */
168 /* PN533_CMD_GET_FIRMWARE_VERSION */
169 struct pn533_fw_version
{
176 /* PN533_CMD_RF_CONFIGURATION */
177 #define PN533_CFGITEM_RF_FIELD 0x01
178 #define PN533_CFGITEM_TIMING 0x02
179 #define PN533_CFGITEM_MAX_RETRIES 0x05
180 #define PN533_CFGITEM_PASORI 0x82
182 #define PN533_CFGITEM_RF_FIELD_AUTO_RFCA 0x2
183 #define PN533_CFGITEM_RF_FIELD_ON 0x1
184 #define PN533_CFGITEM_RF_FIELD_OFF 0x0
186 #define PN533_CONFIG_TIMING_102 0xb
187 #define PN533_CONFIG_TIMING_204 0xc
188 #define PN533_CONFIG_TIMING_409 0xd
189 #define PN533_CONFIG_TIMING_819 0xe
191 #define PN533_CONFIG_MAX_RETRIES_NO_RETRY 0x00
192 #define PN533_CONFIG_MAX_RETRIES_ENDLESS 0xFF
194 struct pn533_config_max_retries
{
197 u8 mx_rty_passive_act
;
200 struct pn533_config_timing
{
206 /* PN533_CMD_IN_LIST_PASSIVE_TARGET */
208 /* felica commands opcode */
209 #define PN533_FELICA_OPC_SENSF_REQ 0
210 #define PN533_FELICA_OPC_SENSF_RES 1
211 /* felica SENSF_REQ parameters */
212 #define PN533_FELICA_SENSF_SC_ALL 0xFFFF
213 #define PN533_FELICA_SENSF_RC_NO_SYSTEM_CODE 0
214 #define PN533_FELICA_SENSF_RC_SYSTEM_CODE 1
215 #define PN533_FELICA_SENSF_RC_ADVANCED_PROTOCOL 2
217 /* type B initiator_data values */
218 #define PN533_TYPE_B_AFI_ALL_FAMILIES 0
219 #define PN533_TYPE_B_POLL_METHOD_TIMESLOT 0
220 #define PN533_TYPE_B_POLL_METHOD_PROBABILISTIC 1
222 union pn533_cmd_poll_initdata
{
235 /* Poll modulations */
237 PN533_POLL_MOD_106KBPS_A
,
238 PN533_POLL_MOD_212KBPS_FELICA
,
239 PN533_POLL_MOD_424KBPS_FELICA
,
240 PN533_POLL_MOD_106KBPS_JEWEL
,
241 PN533_POLL_MOD_847KBPS_B
,
244 __PN533_POLL_MOD_AFTER_LAST
,
246 #define PN533_POLL_MOD_MAX (__PN533_POLL_MOD_AFTER_LAST - 1)
248 struct pn533_poll_modulations
{
252 union pn533_cmd_poll_initdata initiator_data
;
257 static const struct pn533_poll_modulations poll_mod
[] = {
258 [PN533_POLL_MOD_106KBPS_A
] = {
265 [PN533_POLL_MOD_212KBPS_FELICA
] = {
269 .initiator_data
.felica
= {
270 .opcode
= PN533_FELICA_OPC_SENSF_REQ
,
271 .sc
= PN533_FELICA_SENSF_SC_ALL
,
272 .rc
= PN533_FELICA_SENSF_RC_SYSTEM_CODE
,
278 [PN533_POLL_MOD_424KBPS_FELICA
] = {
282 .initiator_data
.felica
= {
283 .opcode
= PN533_FELICA_OPC_SENSF_REQ
,
284 .sc
= PN533_FELICA_SENSF_SC_ALL
,
285 .rc
= PN533_FELICA_SENSF_RC_SYSTEM_CODE
,
291 [PN533_POLL_MOD_106KBPS_JEWEL
] = {
298 [PN533_POLL_MOD_847KBPS_B
] = {
302 .initiator_data
.type_b
= {
303 .afi
= PN533_TYPE_B_AFI_ALL_FAMILIES
,
305 PN533_TYPE_B_POLL_METHOD_TIMESLOT
,
310 [PN533_LISTEN_MOD
] = {
315 /* PN533_CMD_IN_ATR */
317 struct pn533_cmd_activate_response
{
329 struct pn533_cmd_jump_dep_response
{
343 /* PN533_TG_INIT_AS_TARGET */
344 #define PN533_INIT_TARGET_PASSIVE 0x1
345 #define PN533_INIT_TARGET_DEP 0x2
347 #define PN533_INIT_TARGET_RESP_FRAME_MASK 0x3
348 #define PN533_INIT_TARGET_RESP_ACTIVE 0x1
349 #define PN533_INIT_TARGET_RESP_DEP 0x4
351 enum pn533_protocol_type
{
352 PN533_PROTO_REQ_ACK_RESP
= 0,
357 struct usb_device
*udev
;
358 struct usb_interface
*interface
;
359 struct nfc_dev
*nfc_dev
;
361 enum pn533_protocol_type protocol_type
;
366 struct sk_buff_head resp_q
;
367 struct sk_buff_head fragment_skb
;
369 struct workqueue_struct
*wq
;
370 struct work_struct cmd_work
;
371 struct work_struct cmd_complete_work
;
372 struct delayed_work poll_work
;
373 struct work_struct mi_rx_work
;
374 struct work_struct mi_tx_work
;
375 struct work_struct mi_tm_rx_work
;
376 struct work_struct mi_tm_tx_work
;
377 struct work_struct tg_work
;
378 struct work_struct rf_work
;
380 struct list_head cmd_queue
;
381 struct pn533_cmd
*cmd
;
383 struct mutex cmd_lock
; /* protects cmd queue */
385 void *cmd_complete_mi_arg
;
386 void *cmd_complete_dep_arg
;
388 struct pn533_poll_modulations
*poll_mod_active
[PN533_POLL_MOD_MAX
+ 1];
393 u32 listen_protocols
;
394 struct timer_list listen_timer
;
400 u8 tgt_available_prots
;
404 struct pn533_frame_ops
*ops
;
408 struct list_head queue
;
412 struct sk_buff
*resp
;
414 pn533_send_async_complete_t complete_cb
;
415 void *complete_cb_context
;
418 struct pn533_std_frame
{
426 struct pn533_ext_frame
{ /* Extended Information frame */
429 __be16 eif_flag
; /* fixed to 0xFFFF */
435 struct pn533_frame_ops
{
436 void (*tx_frame_init
)(void *frame
, u8 cmd_code
);
437 void (*tx_frame_finish
)(void *frame
);
438 void (*tx_update_payload_len
)(void *frame
, int len
);
442 bool (*rx_is_frame_valid
)(void *frame
, struct pn533
*dev
);
443 int (*rx_frame_size
)(void *frame
);
448 u8 (*get_cmd_code
)(void *frame
);
451 struct pn533_acr122_ccid_hdr
{
456 u8 params
[3]; /* 3 msg specific bytes or status, error and 1 specific
457 byte for reposnse msg */
458 u8 data
[]; /* payload */
461 struct pn533_acr122_apdu_hdr
{
468 struct pn533_acr122_tx_frame
{
469 struct pn533_acr122_ccid_hdr ccid
;
470 struct pn533_acr122_apdu_hdr apdu
;
472 u8 data
[]; /* pn533 frame: TFI ... */
475 struct pn533_acr122_rx_frame
{
476 struct pn533_acr122_ccid_hdr ccid
;
477 u8 data
[]; /* pn533 frame : TFI ... */
480 static void pn533_acr122_tx_frame_init(void *_frame
, u8 cmd_code
)
482 struct pn533_acr122_tx_frame
*frame
= _frame
;
484 frame
->ccid
.type
= PN533_ACR122_PC_TO_RDR_ESCAPE
;
485 frame
->ccid
.datalen
= sizeof(frame
->apdu
) + 1; /* sizeof(apdu_hdr) +
487 frame
->ccid
.slot
= 0;
489 frame
->ccid
.params
[0] = 0;
490 frame
->ccid
.params
[1] = 0;
491 frame
->ccid
.params
[2] = 0;
493 frame
->data
[0] = PN533_STD_FRAME_DIR_OUT
;
494 frame
->data
[1] = cmd_code
;
495 frame
->datalen
= 2; /* data[0] + data[1] */
497 frame
->apdu
.class = 0xFF;
503 static void pn533_acr122_tx_frame_finish(void *_frame
)
505 struct pn533_acr122_tx_frame
*frame
= _frame
;
507 frame
->ccid
.datalen
+= frame
->datalen
;
510 static void pn533_acr122_tx_update_payload_len(void *_frame
, int len
)
512 struct pn533_acr122_tx_frame
*frame
= _frame
;
514 frame
->datalen
+= len
;
517 static bool pn533_acr122_is_rx_frame_valid(void *_frame
, struct pn533
*dev
)
519 struct pn533_acr122_rx_frame
*frame
= _frame
;
521 if (frame
->ccid
.type
!= 0x83)
524 if (frame
->data
[frame
->ccid
.datalen
- 2] == 0x63)
530 static int pn533_acr122_rx_frame_size(void *frame
)
532 struct pn533_acr122_rx_frame
*f
= frame
;
534 /* f->ccid.datalen already includes tail length */
535 return sizeof(struct pn533_acr122_rx_frame
) + f
->ccid
.datalen
;
538 static u8
pn533_acr122_get_cmd_code(void *frame
)
540 struct pn533_acr122_rx_frame
*f
= frame
;
542 return PN533_FRAME_CMD(f
);
545 static struct pn533_frame_ops pn533_acr122_frame_ops
= {
546 .tx_frame_init
= pn533_acr122_tx_frame_init
,
547 .tx_frame_finish
= pn533_acr122_tx_frame_finish
,
548 .tx_update_payload_len
= pn533_acr122_tx_update_payload_len
,
549 .tx_header_len
= PN533_ACR122_TX_FRAME_HEADER_LEN
,
550 .tx_tail_len
= PN533_ACR122_TX_FRAME_TAIL_LEN
,
552 .rx_is_frame_valid
= pn533_acr122_is_rx_frame_valid
,
553 .rx_header_len
= PN533_ACR122_RX_FRAME_HEADER_LEN
,
554 .rx_tail_len
= PN533_ACR122_RX_FRAME_TAIL_LEN
,
555 .rx_frame_size
= pn533_acr122_rx_frame_size
,
557 .max_payload_len
= PN533_ACR122_FRAME_MAX_PAYLOAD_LEN
,
558 .get_cmd_code
= pn533_acr122_get_cmd_code
,
561 /* The rule: value(high byte) + value(low byte) + checksum = 0 */
562 static inline u8
pn533_ext_checksum(u16 value
)
564 return ~(u8
)(((value
& 0xFF00) >> 8) + (u8
)(value
& 0xFF)) + 1;
567 /* The rule: value + checksum = 0 */
568 static inline u8
pn533_std_checksum(u8 value
)
573 /* The rule: sum(data elements) + checksum = 0 */
574 static u8
pn533_std_data_checksum(u8
*data
, int datalen
)
579 for (i
= 0; i
< datalen
; i
++)
582 return pn533_std_checksum(sum
);
585 static void pn533_std_tx_frame_init(void *_frame
, u8 cmd_code
)
587 struct pn533_std_frame
*frame
= _frame
;
590 frame
->start_frame
= cpu_to_be16(PN533_STD_FRAME_SOF
);
591 PN533_STD_FRAME_IDENTIFIER(frame
) = PN533_STD_FRAME_DIR_OUT
;
592 PN533_FRAME_CMD(frame
) = cmd_code
;
596 static void pn533_std_tx_frame_finish(void *_frame
)
598 struct pn533_std_frame
*frame
= _frame
;
600 frame
->datalen_checksum
= pn533_std_checksum(frame
->datalen
);
602 PN533_STD_FRAME_CHECKSUM(frame
) =
603 pn533_std_data_checksum(frame
->data
, frame
->datalen
);
605 PN533_STD_FRAME_POSTAMBLE(frame
) = 0;
608 static void pn533_std_tx_update_payload_len(void *_frame
, int len
)
610 struct pn533_std_frame
*frame
= _frame
;
612 frame
->datalen
+= len
;
615 static bool pn533_std_rx_frame_is_valid(void *_frame
, struct pn533
*dev
)
618 struct pn533_std_frame
*stdf
= _frame
;
620 if (stdf
->start_frame
!= cpu_to_be16(PN533_STD_FRAME_SOF
))
623 if (likely(!PN533_STD_IS_EXTENDED(stdf
))) {
624 /* Standard frame code */
625 dev
->ops
->rx_header_len
= PN533_STD_FRAME_HEADER_LEN
;
627 checksum
= pn533_std_checksum(stdf
->datalen
);
628 if (checksum
!= stdf
->datalen_checksum
)
631 checksum
= pn533_std_data_checksum(stdf
->data
, stdf
->datalen
);
632 if (checksum
!= PN533_STD_FRAME_CHECKSUM(stdf
))
636 struct pn533_ext_frame
*eif
= _frame
;
638 dev
->ops
->rx_header_len
= PN533_EXT_FRAME_HEADER_LEN
;
640 checksum
= pn533_ext_checksum(be16_to_cpu(eif
->datalen
));
641 if (checksum
!= eif
->datalen_checksum
)
644 /* check data checksum */
645 checksum
= pn533_std_data_checksum(eif
->data
,
646 be16_to_cpu(eif
->datalen
));
647 if (checksum
!= PN533_EXT_FRAME_CHECKSUM(eif
))
654 static bool pn533_std_rx_frame_is_ack(struct pn533_std_frame
*frame
)
656 if (frame
->start_frame
!= cpu_to_be16(PN533_STD_FRAME_SOF
))
659 if (frame
->datalen
!= 0 || frame
->datalen_checksum
!= 0xFF)
665 static inline int pn533_std_rx_frame_size(void *frame
)
667 struct pn533_std_frame
*f
= frame
;
669 /* check for Extended Information frame */
670 if (PN533_STD_IS_EXTENDED(f
)) {
671 struct pn533_ext_frame
*eif
= frame
;
673 return sizeof(struct pn533_ext_frame
)
674 + be16_to_cpu(eif
->datalen
) + PN533_STD_FRAME_TAIL_LEN
;
677 return sizeof(struct pn533_std_frame
) + f
->datalen
+
678 PN533_STD_FRAME_TAIL_LEN
;
681 static u8
pn533_std_get_cmd_code(void *frame
)
683 struct pn533_std_frame
*f
= frame
;
684 struct pn533_ext_frame
*eif
= frame
;
686 if (PN533_STD_IS_EXTENDED(f
))
687 return PN533_FRAME_CMD(eif
);
689 return PN533_FRAME_CMD(f
);
692 static struct pn533_frame_ops pn533_std_frame_ops
= {
693 .tx_frame_init
= pn533_std_tx_frame_init
,
694 .tx_frame_finish
= pn533_std_tx_frame_finish
,
695 .tx_update_payload_len
= pn533_std_tx_update_payload_len
,
696 .tx_header_len
= PN533_STD_FRAME_HEADER_LEN
,
697 .tx_tail_len
= PN533_STD_FRAME_TAIL_LEN
,
699 .rx_is_frame_valid
= pn533_std_rx_frame_is_valid
,
700 .rx_frame_size
= pn533_std_rx_frame_size
,
701 .rx_header_len
= PN533_STD_FRAME_HEADER_LEN
,
702 .rx_tail_len
= PN533_STD_FRAME_TAIL_LEN
,
704 .max_payload_len
= PN533_STD_FRAME_MAX_PAYLOAD_LEN
,
705 .get_cmd_code
= pn533_std_get_cmd_code
,
708 static bool pn533_rx_frame_is_cmd_response(struct pn533
*dev
, void *frame
)
710 return (dev
->ops
->get_cmd_code(frame
) ==
711 PN533_CMD_RESPONSE(dev
->cmd
->code
));
714 static void pn533_recv_response(struct urb
*urb
)
716 struct pn533
*dev
= urb
->context
;
717 struct pn533_cmd
*cmd
= dev
->cmd
;
720 cmd
->status
= urb
->status
;
722 switch (urb
->status
) {
727 dev_dbg(&dev
->interface
->dev
,
728 "The urb has been canceled (status %d)\n",
733 nfc_err(&dev
->interface
->dev
,
734 "Urb failure (status %d)\n", urb
->status
);
738 in_frame
= dev
->in_urb
->transfer_buffer
;
740 dev_dbg(&dev
->interface
->dev
, "Received a frame\n");
741 print_hex_dump_debug("PN533 RX: ", DUMP_PREFIX_NONE
, 16, 1, in_frame
,
742 dev
->ops
->rx_frame_size(in_frame
), false);
744 if (!dev
->ops
->rx_is_frame_valid(in_frame
, dev
)) {
745 nfc_err(&dev
->interface
->dev
, "Received an invalid frame\n");
750 if (!pn533_rx_frame_is_cmd_response(dev
, in_frame
)) {
751 nfc_err(&dev
->interface
->dev
,
752 "It it not the response to the last command\n");
758 queue_work(dev
->wq
, &dev
->cmd_complete_work
);
761 static int pn533_submit_urb_for_response(struct pn533
*dev
, gfp_t flags
)
763 dev
->in_urb
->complete
= pn533_recv_response
;
765 return usb_submit_urb(dev
->in_urb
, flags
);
768 static void pn533_recv_ack(struct urb
*urb
)
770 struct pn533
*dev
= urb
->context
;
771 struct pn533_cmd
*cmd
= dev
->cmd
;
772 struct pn533_std_frame
*in_frame
;
775 cmd
->status
= urb
->status
;
777 switch (urb
->status
) {
782 dev_dbg(&dev
->interface
->dev
,
783 "The urb has been stopped (status %d)\n",
788 nfc_err(&dev
->interface
->dev
,
789 "Urb failure (status %d)\n", urb
->status
);
793 in_frame
= dev
->in_urb
->transfer_buffer
;
795 if (!pn533_std_rx_frame_is_ack(in_frame
)) {
796 nfc_err(&dev
->interface
->dev
, "Received an invalid ack\n");
801 rc
= pn533_submit_urb_for_response(dev
, GFP_ATOMIC
);
803 nfc_err(&dev
->interface
->dev
,
804 "usb_submit_urb failed with result %d\n", rc
);
812 queue_work(dev
->wq
, &dev
->cmd_complete_work
);
815 static int pn533_submit_urb_for_ack(struct pn533
*dev
, gfp_t flags
)
817 dev
->in_urb
->complete
= pn533_recv_ack
;
819 return usb_submit_urb(dev
->in_urb
, flags
);
822 static int pn533_send_ack(struct pn533
*dev
, gfp_t flags
)
824 u8 ack
[PN533_STD_FRAME_ACK_SIZE
] = {0x00, 0x00, 0xff, 0x00, 0xff, 0x00};
825 /* spec 7.1.1.3: Preamble, SoPC (2), ACK Code (2), Postamble */
828 dev
->out_urb
->transfer_buffer
= ack
;
829 dev
->out_urb
->transfer_buffer_length
= sizeof(ack
);
830 rc
= usb_submit_urb(dev
->out_urb
, flags
);
835 static int __pn533_send_frame_async(struct pn533
*dev
,
842 dev
->out_urb
->transfer_buffer
= out
->data
;
843 dev
->out_urb
->transfer_buffer_length
= out
->len
;
845 dev
->in_urb
->transfer_buffer
= in
->data
;
846 dev
->in_urb
->transfer_buffer_length
= in_len
;
848 print_hex_dump_debug("PN533 TX: ", DUMP_PREFIX_NONE
, 16, 1,
849 out
->data
, out
->len
, false);
851 rc
= usb_submit_urb(dev
->out_urb
, GFP_KERNEL
);
855 if (dev
->protocol_type
== PN533_PROTO_REQ_RESP
) {
856 /* request for response for sent packet directly */
857 rc
= pn533_submit_urb_for_response(dev
, GFP_ATOMIC
);
860 } else if (dev
->protocol_type
== PN533_PROTO_REQ_ACK_RESP
) {
861 /* request for ACK if that's the case */
862 rc
= pn533_submit_urb_for_ack(dev
, GFP_KERNEL
);
870 usb_unlink_urb(dev
->out_urb
);
874 static void pn533_build_cmd_frame(struct pn533
*dev
, u8 cmd_code
,
877 /* payload is already there, just update datalen */
878 int payload_len
= skb
->len
;
879 struct pn533_frame_ops
*ops
= dev
->ops
;
882 skb_push(skb
, ops
->tx_header_len
);
883 skb_put(skb
, ops
->tx_tail_len
);
885 ops
->tx_frame_init(skb
->data
, cmd_code
);
886 ops
->tx_update_payload_len(skb
->data
, payload_len
);
887 ops
->tx_frame_finish(skb
->data
);
890 static int pn533_send_async_complete(struct pn533
*dev
)
892 struct pn533_cmd
*cmd
= dev
->cmd
;
893 int status
= cmd
->status
;
895 struct sk_buff
*req
= cmd
->req
;
896 struct sk_buff
*resp
= cmd
->resp
;
903 rc
= cmd
->complete_cb(dev
, cmd
->complete_cb_context
,
909 skb_put(resp
, dev
->ops
->rx_frame_size(resp
->data
));
910 skb_pull(resp
, dev
->ops
->rx_header_len
);
911 skb_trim(resp
, resp
->len
- dev
->ops
->rx_tail_len
);
913 rc
= cmd
->complete_cb(dev
, cmd
->complete_cb_context
, resp
);
921 static int __pn533_send_async(struct pn533
*dev
, u8 cmd_code
,
922 struct sk_buff
*req
, struct sk_buff
*resp
,
924 pn533_send_async_complete_t complete_cb
,
925 void *complete_cb_context
)
927 struct pn533_cmd
*cmd
;
930 dev_dbg(&dev
->interface
->dev
, "Sending command 0x%x\n", cmd_code
);
932 cmd
= kzalloc(sizeof(*cmd
), GFP_KERNEL
);
936 cmd
->code
= cmd_code
;
939 cmd
->resp_len
= resp_len
;
940 cmd
->complete_cb
= complete_cb
;
941 cmd
->complete_cb_context
= complete_cb_context
;
943 pn533_build_cmd_frame(dev
, cmd_code
, req
);
945 mutex_lock(&dev
->cmd_lock
);
947 if (!dev
->cmd_pending
) {
948 rc
= __pn533_send_frame_async(dev
, req
, resp
, resp_len
);
952 dev
->cmd_pending
= 1;
957 dev_dbg(&dev
->interface
->dev
, "%s Queueing command 0x%x\n",
960 INIT_LIST_HEAD(&cmd
->queue
);
961 list_add_tail(&cmd
->queue
, &dev
->cmd_queue
);
968 mutex_unlock(&dev
->cmd_lock
);
972 static int pn533_send_data_async(struct pn533
*dev
, u8 cmd_code
,
974 pn533_send_async_complete_t complete_cb
,
975 void *complete_cb_context
)
977 struct sk_buff
*resp
;
979 int resp_len
= dev
->ops
->rx_header_len
+
980 dev
->ops
->max_payload_len
+
981 dev
->ops
->rx_tail_len
;
983 resp
= nfc_alloc_recv_skb(resp_len
, GFP_KERNEL
);
987 rc
= __pn533_send_async(dev
, cmd_code
, req
, resp
, resp_len
, complete_cb
,
988 complete_cb_context
);
995 static int pn533_send_cmd_async(struct pn533
*dev
, u8 cmd_code
,
997 pn533_send_async_complete_t complete_cb
,
998 void *complete_cb_context
)
1000 struct sk_buff
*resp
;
1002 int resp_len
= dev
->ops
->rx_header_len
+
1003 dev
->ops
->max_payload_len
+
1004 dev
->ops
->rx_tail_len
;
1006 resp
= alloc_skb(resp_len
, GFP_KERNEL
);
1010 rc
= __pn533_send_async(dev
, cmd_code
, req
, resp
, resp_len
, complete_cb
,
1011 complete_cb_context
);
1013 dev_kfree_skb(resp
);
1019 * pn533_send_cmd_direct_async
1021 * The function sends a piority cmd directly to the chip omiting the cmd
1022 * queue. It's intended to be used by chaining mechanism of received responses
1023 * where the host has to request every single chunk of data before scheduling
1024 * next cmd from the queue.
1026 static int pn533_send_cmd_direct_async(struct pn533
*dev
, u8 cmd_code
,
1027 struct sk_buff
*req
,
1028 pn533_send_async_complete_t complete_cb
,
1029 void *complete_cb_context
)
1031 struct sk_buff
*resp
;
1032 struct pn533_cmd
*cmd
;
1034 int resp_len
= dev
->ops
->rx_header_len
+
1035 dev
->ops
->max_payload_len
+
1036 dev
->ops
->rx_tail_len
;
1038 resp
= alloc_skb(resp_len
, GFP_KERNEL
);
1042 cmd
= kzalloc(sizeof(*cmd
), GFP_KERNEL
);
1044 dev_kfree_skb(resp
);
1048 cmd
->code
= cmd_code
;
1051 cmd
->resp_len
= resp_len
;
1052 cmd
->complete_cb
= complete_cb
;
1053 cmd
->complete_cb_context
= complete_cb_context
;
1055 pn533_build_cmd_frame(dev
, cmd_code
, req
);
1057 rc
= __pn533_send_frame_async(dev
, req
, resp
, resp_len
);
1059 dev_kfree_skb(resp
);
1068 static void pn533_wq_cmd_complete(struct work_struct
*work
)
1070 struct pn533
*dev
= container_of(work
, struct pn533
, cmd_complete_work
);
1073 rc
= pn533_send_async_complete(dev
);
1074 if (rc
!= -EINPROGRESS
)
1075 queue_work(dev
->wq
, &dev
->cmd_work
);
1078 static void pn533_wq_cmd(struct work_struct
*work
)
1080 struct pn533
*dev
= container_of(work
, struct pn533
, cmd_work
);
1081 struct pn533_cmd
*cmd
;
1084 mutex_lock(&dev
->cmd_lock
);
1086 if (list_empty(&dev
->cmd_queue
)) {
1087 dev
->cmd_pending
= 0;
1088 mutex_unlock(&dev
->cmd_lock
);
1092 cmd
= list_first_entry(&dev
->cmd_queue
, struct pn533_cmd
, queue
);
1094 list_del(&cmd
->queue
);
1096 mutex_unlock(&dev
->cmd_lock
);
1098 rc
= __pn533_send_frame_async(dev
, cmd
->req
, cmd
->resp
, cmd
->resp_len
);
1100 dev_kfree_skb(cmd
->req
);
1101 dev_kfree_skb(cmd
->resp
);
1109 struct pn533_sync_cmd_response
{
1110 struct sk_buff
*resp
;
1111 struct completion done
;
1114 static int pn533_send_sync_complete(struct pn533
*dev
, void *_arg
,
1115 struct sk_buff
*resp
)
1117 struct pn533_sync_cmd_response
*arg
= _arg
;
1120 complete(&arg
->done
);
1125 /* pn533_send_cmd_sync
1127 * Please note the req parameter is freed inside the function to
1128 * limit a number of return value interpretations by the caller.
1130 * 1. negative in case of error during TX path -> req should be freed
1132 * 2. negative in case of error during RX path -> req should not be freed
1133 * as it's been already freed at the begining of RX path by
1134 * async_complete_cb.
1136 * 3. valid pointer in case of succesfult RX path
1138 * A caller has to check a return value with IS_ERR macro. If the test pass,
1139 * the returned pointer is valid.
1142 static struct sk_buff
*pn533_send_cmd_sync(struct pn533
*dev
, u8 cmd_code
,
1143 struct sk_buff
*req
)
1146 struct pn533_sync_cmd_response arg
;
1148 init_completion(&arg
.done
);
1150 rc
= pn533_send_cmd_async(dev
, cmd_code
, req
,
1151 pn533_send_sync_complete
, &arg
);
1157 wait_for_completion(&arg
.done
);
1162 static void pn533_send_complete(struct urb
*urb
)
1164 struct pn533
*dev
= urb
->context
;
1166 switch (urb
->status
) {
1168 break; /* success */
1171 dev_dbg(&dev
->interface
->dev
,
1172 "The urb has been stopped (status %d)\n",
1177 nfc_err(&dev
->interface
->dev
, "Urb failure (status %d)\n",
1182 static void pn533_abort_cmd(struct pn533
*dev
, gfp_t flags
)
1184 /* ACR122U does not support any command which aborts last
1185 * issued command i.e. as ACK for standard PN533. Additionally,
1186 * it behaves stange, sending broken or incorrect responses,
1187 * when we cancel urb before the chip will send response.
1189 if (dev
->device_type
== PN533_DEVICE_ACR122U
)
1192 /* An ack will cancel the last issued command */
1193 pn533_send_ack(dev
, flags
);
1195 /* cancel the urb request */
1196 usb_kill_urb(dev
->in_urb
);
1199 static struct sk_buff
*pn533_alloc_skb(struct pn533
*dev
, unsigned int size
)
1201 struct sk_buff
*skb
;
1203 skb
= alloc_skb(dev
->ops
->tx_header_len
+
1205 dev
->ops
->tx_tail_len
, GFP_KERNEL
);
1208 skb_reserve(skb
, dev
->ops
->tx_header_len
);
1213 struct pn533_target_type_a
{
1221 #define PN533_TYPE_A_SENS_RES_NFCID1(x) ((u8)((be16_to_cpu(x) & 0x00C0) >> 6))
1222 #define PN533_TYPE_A_SENS_RES_SSD(x) ((u8)((be16_to_cpu(x) & 0x001F) >> 0))
1223 #define PN533_TYPE_A_SENS_RES_PLATCONF(x) ((u8)((be16_to_cpu(x) & 0x0F00) >> 8))
1225 #define PN533_TYPE_A_SENS_RES_SSD_JEWEL 0x00
1226 #define PN533_TYPE_A_SENS_RES_PLATCONF_JEWEL 0x0C
1228 #define PN533_TYPE_A_SEL_PROT(x) (((x) & 0x60) >> 5)
1229 #define PN533_TYPE_A_SEL_CASCADE(x) (((x) & 0x04) >> 2)
1231 #define PN533_TYPE_A_SEL_PROT_MIFARE 0
1232 #define PN533_TYPE_A_SEL_PROT_ISO14443 1
1233 #define PN533_TYPE_A_SEL_PROT_DEP 2
1234 #define PN533_TYPE_A_SEL_PROT_ISO14443_DEP 3
1236 static bool pn533_target_type_a_is_valid(struct pn533_target_type_a
*type_a
,
1237 int target_data_len
)
1242 if (target_data_len
< sizeof(struct pn533_target_type_a
))
1245 /* The lenght check of nfcid[] and ats[] are not being performed because
1246 the values are not being used */
1248 /* Requirement 4.6.3.3 from NFC Forum Digital Spec */
1249 ssd
= PN533_TYPE_A_SENS_RES_SSD(type_a
->sens_res
);
1250 platconf
= PN533_TYPE_A_SENS_RES_PLATCONF(type_a
->sens_res
);
1252 if ((ssd
== PN533_TYPE_A_SENS_RES_SSD_JEWEL
&&
1253 platconf
!= PN533_TYPE_A_SENS_RES_PLATCONF_JEWEL
) ||
1254 (ssd
!= PN533_TYPE_A_SENS_RES_SSD_JEWEL
&&
1255 platconf
== PN533_TYPE_A_SENS_RES_PLATCONF_JEWEL
))
1258 /* Requirements 4.8.2.1, 4.8.2.3, 4.8.2.5 and 4.8.2.7 from NFC Forum */
1259 if (PN533_TYPE_A_SEL_CASCADE(type_a
->sel_res
) != 0)
1265 static int pn533_target_found_type_a(struct nfc_target
*nfc_tgt
, u8
*tgt_data
,
1268 struct pn533_target_type_a
*tgt_type_a
;
1270 tgt_type_a
= (struct pn533_target_type_a
*)tgt_data
;
1272 if (!pn533_target_type_a_is_valid(tgt_type_a
, tgt_data_len
))
1275 switch (PN533_TYPE_A_SEL_PROT(tgt_type_a
->sel_res
)) {
1276 case PN533_TYPE_A_SEL_PROT_MIFARE
:
1277 nfc_tgt
->supported_protocols
= NFC_PROTO_MIFARE_MASK
;
1279 case PN533_TYPE_A_SEL_PROT_ISO14443
:
1280 nfc_tgt
->supported_protocols
= NFC_PROTO_ISO14443_MASK
;
1282 case PN533_TYPE_A_SEL_PROT_DEP
:
1283 nfc_tgt
->supported_protocols
= NFC_PROTO_NFC_DEP_MASK
;
1285 case PN533_TYPE_A_SEL_PROT_ISO14443_DEP
:
1286 nfc_tgt
->supported_protocols
= NFC_PROTO_ISO14443_MASK
|
1287 NFC_PROTO_NFC_DEP_MASK
;
1291 nfc_tgt
->sens_res
= be16_to_cpu(tgt_type_a
->sens_res
);
1292 nfc_tgt
->sel_res
= tgt_type_a
->sel_res
;
1293 nfc_tgt
->nfcid1_len
= tgt_type_a
->nfcid_len
;
1294 memcpy(nfc_tgt
->nfcid1
, tgt_type_a
->nfcid_data
, nfc_tgt
->nfcid1_len
);
1299 struct pn533_target_felica
{
1302 u8 nfcid2
[NFC_NFCID2_MAXSIZE
];
1308 #define PN533_FELICA_SENSF_NFCID2_DEP_B1 0x01
1309 #define PN533_FELICA_SENSF_NFCID2_DEP_B2 0xFE
1311 static bool pn533_target_felica_is_valid(struct pn533_target_felica
*felica
,
1312 int target_data_len
)
1314 if (target_data_len
< sizeof(struct pn533_target_felica
))
1317 if (felica
->opcode
!= PN533_FELICA_OPC_SENSF_RES
)
1323 static int pn533_target_found_felica(struct nfc_target
*nfc_tgt
, u8
*tgt_data
,
1326 struct pn533_target_felica
*tgt_felica
;
1328 tgt_felica
= (struct pn533_target_felica
*)tgt_data
;
1330 if (!pn533_target_felica_is_valid(tgt_felica
, tgt_data_len
))
1333 if ((tgt_felica
->nfcid2
[0] == PN533_FELICA_SENSF_NFCID2_DEP_B1
) &&
1334 (tgt_felica
->nfcid2
[1] == PN533_FELICA_SENSF_NFCID2_DEP_B2
))
1335 nfc_tgt
->supported_protocols
= NFC_PROTO_NFC_DEP_MASK
;
1337 nfc_tgt
->supported_protocols
= NFC_PROTO_FELICA_MASK
;
1339 memcpy(nfc_tgt
->sensf_res
, &tgt_felica
->opcode
, 9);
1340 nfc_tgt
->sensf_res_len
= 9;
1342 memcpy(nfc_tgt
->nfcid2
, tgt_felica
->nfcid2
, NFC_NFCID2_MAXSIZE
);
1343 nfc_tgt
->nfcid2_len
= NFC_NFCID2_MAXSIZE
;
1348 struct pn533_target_jewel
{
1353 static bool pn533_target_jewel_is_valid(struct pn533_target_jewel
*jewel
,
1354 int target_data_len
)
1359 if (target_data_len
< sizeof(struct pn533_target_jewel
))
1362 /* Requirement 4.6.3.3 from NFC Forum Digital Spec */
1363 ssd
= PN533_TYPE_A_SENS_RES_SSD(jewel
->sens_res
);
1364 platconf
= PN533_TYPE_A_SENS_RES_PLATCONF(jewel
->sens_res
);
1366 if ((ssd
== PN533_TYPE_A_SENS_RES_SSD_JEWEL
&&
1367 platconf
!= PN533_TYPE_A_SENS_RES_PLATCONF_JEWEL
) ||
1368 (ssd
!= PN533_TYPE_A_SENS_RES_SSD_JEWEL
&&
1369 platconf
== PN533_TYPE_A_SENS_RES_PLATCONF_JEWEL
))
1375 static int pn533_target_found_jewel(struct nfc_target
*nfc_tgt
, u8
*tgt_data
,
1378 struct pn533_target_jewel
*tgt_jewel
;
1380 tgt_jewel
= (struct pn533_target_jewel
*)tgt_data
;
1382 if (!pn533_target_jewel_is_valid(tgt_jewel
, tgt_data_len
))
1385 nfc_tgt
->supported_protocols
= NFC_PROTO_JEWEL_MASK
;
1386 nfc_tgt
->sens_res
= be16_to_cpu(tgt_jewel
->sens_res
);
1387 nfc_tgt
->nfcid1_len
= 4;
1388 memcpy(nfc_tgt
->nfcid1
, tgt_jewel
->jewelid
, nfc_tgt
->nfcid1_len
);
1393 struct pn533_type_b_prot_info
{
1399 #define PN533_TYPE_B_PROT_FCSI(x) (((x) & 0xF0) >> 4)
1400 #define PN533_TYPE_B_PROT_TYPE(x) (((x) & 0x0F) >> 0)
1401 #define PN533_TYPE_B_PROT_TYPE_RFU_MASK 0x8
1403 struct pn533_type_b_sens_res
{
1407 struct pn533_type_b_prot_info prot_info
;
1410 #define PN533_TYPE_B_OPC_SENSB_RES 0x50
1412 struct pn533_target_type_b
{
1413 struct pn533_type_b_sens_res sensb_res
;
1418 static bool pn533_target_type_b_is_valid(struct pn533_target_type_b
*type_b
,
1419 int target_data_len
)
1421 if (target_data_len
< sizeof(struct pn533_target_type_b
))
1424 if (type_b
->sensb_res
.opcode
!= PN533_TYPE_B_OPC_SENSB_RES
)
1427 if (PN533_TYPE_B_PROT_TYPE(type_b
->sensb_res
.prot_info
.fsci_type
) &
1428 PN533_TYPE_B_PROT_TYPE_RFU_MASK
)
1434 static int pn533_target_found_type_b(struct nfc_target
*nfc_tgt
, u8
*tgt_data
,
1437 struct pn533_target_type_b
*tgt_type_b
;
1439 tgt_type_b
= (struct pn533_target_type_b
*)tgt_data
;
1441 if (!pn533_target_type_b_is_valid(tgt_type_b
, tgt_data_len
))
1444 nfc_tgt
->supported_protocols
= NFC_PROTO_ISO14443_B_MASK
;
1449 static int pn533_target_found(struct pn533
*dev
, u8 tg
, u8
*tgdata
,
1452 struct nfc_target nfc_tgt
;
1455 dev_dbg(&dev
->interface
->dev
, "%s: modulation=%d\n",
1456 __func__
, dev
->poll_mod_curr
);
1461 memset(&nfc_tgt
, 0, sizeof(struct nfc_target
));
1463 switch (dev
->poll_mod_curr
) {
1464 case PN533_POLL_MOD_106KBPS_A
:
1465 rc
= pn533_target_found_type_a(&nfc_tgt
, tgdata
, tgdata_len
);
1467 case PN533_POLL_MOD_212KBPS_FELICA
:
1468 case PN533_POLL_MOD_424KBPS_FELICA
:
1469 rc
= pn533_target_found_felica(&nfc_tgt
, tgdata
, tgdata_len
);
1471 case PN533_POLL_MOD_106KBPS_JEWEL
:
1472 rc
= pn533_target_found_jewel(&nfc_tgt
, tgdata
, tgdata_len
);
1474 case PN533_POLL_MOD_847KBPS_B
:
1475 rc
= pn533_target_found_type_b(&nfc_tgt
, tgdata
, tgdata_len
);
1478 nfc_err(&dev
->interface
->dev
,
1479 "Unknown current poll modulation\n");
1486 if (!(nfc_tgt
.supported_protocols
& dev
->poll_protocols
)) {
1487 dev_dbg(&dev
->interface
->dev
,
1488 "The Tg found doesn't have the desired protocol\n");
1492 dev_dbg(&dev
->interface
->dev
,
1493 "Target found - supported protocols: 0x%x\n",
1494 nfc_tgt
.supported_protocols
);
1496 dev
->tgt_available_prots
= nfc_tgt
.supported_protocols
;
1498 nfc_targets_found(dev
->nfc_dev
, &nfc_tgt
, 1);
1503 static inline void pn533_poll_next_mod(struct pn533
*dev
)
1505 dev
->poll_mod_curr
= (dev
->poll_mod_curr
+ 1) % dev
->poll_mod_count
;
1508 static void pn533_poll_reset_mod_list(struct pn533
*dev
)
1510 dev
->poll_mod_count
= 0;
1513 static void pn533_poll_add_mod(struct pn533
*dev
, u8 mod_index
)
1515 dev
->poll_mod_active
[dev
->poll_mod_count
] =
1516 (struct pn533_poll_modulations
*)&poll_mod
[mod_index
];
1517 dev
->poll_mod_count
++;
1520 static void pn533_poll_create_mod_list(struct pn533
*dev
,
1521 u32 im_protocols
, u32 tm_protocols
)
1523 pn533_poll_reset_mod_list(dev
);
1525 if ((im_protocols
& NFC_PROTO_MIFARE_MASK
) ||
1526 (im_protocols
& NFC_PROTO_ISO14443_MASK
) ||
1527 (im_protocols
& NFC_PROTO_NFC_DEP_MASK
))
1528 pn533_poll_add_mod(dev
, PN533_POLL_MOD_106KBPS_A
);
1530 if (im_protocols
& NFC_PROTO_FELICA_MASK
||
1531 im_protocols
& NFC_PROTO_NFC_DEP_MASK
) {
1532 pn533_poll_add_mod(dev
, PN533_POLL_MOD_212KBPS_FELICA
);
1533 pn533_poll_add_mod(dev
, PN533_POLL_MOD_424KBPS_FELICA
);
1536 if (im_protocols
& NFC_PROTO_JEWEL_MASK
)
1537 pn533_poll_add_mod(dev
, PN533_POLL_MOD_106KBPS_JEWEL
);
1539 if (im_protocols
& NFC_PROTO_ISO14443_B_MASK
)
1540 pn533_poll_add_mod(dev
, PN533_POLL_MOD_847KBPS_B
);
1543 pn533_poll_add_mod(dev
, PN533_LISTEN_MOD
);
1546 static int pn533_start_poll_complete(struct pn533
*dev
, struct sk_buff
*resp
)
1548 u8 nbtg
, tg
, *tgdata
;
1551 /* Toggle the DEP polling */
1554 nbtg
= resp
->data
[0];
1556 tgdata
= &resp
->data
[2];
1557 tgdata_len
= resp
->len
- 2; /* nbtg + tg */
1560 rc
= pn533_target_found(dev
, tg
, tgdata
, tgdata_len
);
1562 /* We must stop the poll after a valid target found */
1564 pn533_poll_reset_mod_list(dev
);
1572 static struct sk_buff
*pn533_alloc_poll_tg_frame(struct pn533
*dev
)
1574 struct sk_buff
*skb
;
1575 u8
*felica
, *nfcid3
, *gb
;
1577 u8
*gbytes
= dev
->gb
;
1578 size_t gbytes_len
= dev
->gb_len
;
1580 u8 felica_params
[18] = {0x1, 0xfe, /* DEP */
1581 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, /* random */
1582 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0,
1583 0xff, 0xff}; /* System code */
1585 u8 mifare_params
[6] = {0x1, 0x1, /* SENS_RES */
1587 0x40}; /* SEL_RES for DEP */
1589 unsigned int skb_len
= 36 + /* mode (1), mifare (6),
1590 felica (18), nfcid3 (10), gb_len (1) */
1594 skb
= pn533_alloc_skb(dev
, skb_len
);
1598 /* DEP support only */
1599 *skb_put(skb
, 1) = PN533_INIT_TARGET_DEP
;
1602 memcpy(skb_put(skb
, 6), mifare_params
, 6);
1605 felica
= skb_put(skb
, 18);
1606 memcpy(felica
, felica_params
, 18);
1607 get_random_bytes(felica
+ 2, 6);
1610 nfcid3
= skb_put(skb
, 10);
1611 memset(nfcid3
, 0, 10);
1612 memcpy(nfcid3
, felica
, 8);
1615 *skb_put(skb
, 1) = gbytes_len
;
1617 gb
= skb_put(skb
, gbytes_len
);
1618 memcpy(gb
, gbytes
, gbytes_len
);
1621 *skb_put(skb
, 1) = 0;
1626 #define PN533_CMD_DATAEXCH_HEAD_LEN 1
1627 #define PN533_CMD_DATAEXCH_DATA_MAXLEN 262
1628 static void pn533_wq_tm_mi_recv(struct work_struct
*work
);
1629 static struct sk_buff
*pn533_build_response(struct pn533
*dev
);
1631 static int pn533_tm_get_data_complete(struct pn533
*dev
, void *arg
,
1632 struct sk_buff
*resp
)
1634 struct sk_buff
*skb
;
1638 dev_dbg(&dev
->interface
->dev
, "%s\n", __func__
);
1641 skb_queue_purge(&dev
->resp_q
);
1642 return PTR_ERR(resp
);
1645 status
= resp
->data
[0];
1647 ret
= status
& PN533_CMD_RET_MASK
;
1648 mi
= status
& PN533_CMD_MI_MASK
;
1650 skb_pull(resp
, sizeof(status
));
1652 if (ret
!= PN533_CMD_RET_SUCCESS
) {
1657 skb_queue_tail(&dev
->resp_q
, resp
);
1660 queue_work(dev
->wq
, &dev
->mi_tm_rx_work
);
1661 return -EINPROGRESS
;
1664 skb
= pn533_build_response(dev
);
1670 return nfc_tm_data_received(dev
->nfc_dev
, skb
);
1673 nfc_tm_deactivated(dev
->nfc_dev
);
1675 skb_queue_purge(&dev
->resp_q
);
1676 dev_kfree_skb(resp
);
1681 static void pn533_wq_tm_mi_recv(struct work_struct
*work
)
1683 struct pn533
*dev
= container_of(work
, struct pn533
, mi_tm_rx_work
);
1684 struct sk_buff
*skb
;
1687 dev_dbg(&dev
->interface
->dev
, "%s\n", __func__
);
1689 skb
= pn533_alloc_skb(dev
, 0);
1693 rc
= pn533_send_cmd_direct_async(dev
,
1694 PN533_CMD_TG_GET_DATA
,
1696 pn533_tm_get_data_complete
,
1705 static int pn533_tm_send_complete(struct pn533
*dev
, void *arg
,
1706 struct sk_buff
*resp
);
1707 static void pn533_wq_tm_mi_send(struct work_struct
*work
)
1709 struct pn533
*dev
= container_of(work
, struct pn533
, mi_tm_tx_work
);
1710 struct sk_buff
*skb
;
1713 dev_dbg(&dev
->interface
->dev
, "%s\n", __func__
);
1715 /* Grab the first skb in the queue */
1716 skb
= skb_dequeue(&dev
->fragment_skb
);
1717 if (skb
== NULL
) { /* No more data */
1718 /* Reset the queue for future use */
1719 skb_queue_head_init(&dev
->fragment_skb
);
1723 /* last entry - remove MI bit */
1724 if (skb_queue_len(&dev
->fragment_skb
) == 0) {
1725 rc
= pn533_send_cmd_direct_async(dev
, PN533_CMD_TG_SET_DATA
,
1726 skb
, pn533_tm_send_complete
, NULL
);
1728 rc
= pn533_send_cmd_direct_async(dev
,
1729 PN533_CMD_TG_SET_META_DATA
,
1730 skb
, pn533_tm_send_complete
, NULL
);
1732 if (rc
== 0) /* success */
1735 dev_err(&dev
->interface
->dev
,
1736 "Error %d when trying to perform set meta data_exchange", rc
);
1741 pn533_send_ack(dev
, GFP_KERNEL
);
1742 queue_work(dev
->wq
, &dev
->cmd_work
);
1745 static void pn533_wq_tg_get_data(struct work_struct
*work
)
1747 struct pn533
*dev
= container_of(work
, struct pn533
, tg_work
);
1748 struct sk_buff
*skb
;
1751 dev_dbg(&dev
->interface
->dev
, "%s\n", __func__
);
1753 skb
= pn533_alloc_skb(dev
, 0);
1757 rc
= pn533_send_data_async(dev
, PN533_CMD_TG_GET_DATA
, skb
,
1758 pn533_tm_get_data_complete
, NULL
);
1766 #define ATR_REQ_GB_OFFSET 17
1767 static int pn533_init_target_complete(struct pn533
*dev
, struct sk_buff
*resp
)
1769 u8 mode
, *cmd
, comm_mode
= NFC_COMM_PASSIVE
, *gb
;
1773 dev_dbg(&dev
->interface
->dev
, "%s\n", __func__
);
1775 if (resp
->len
< ATR_REQ_GB_OFFSET
+ 1)
1778 mode
= resp
->data
[0];
1779 cmd
= &resp
->data
[1];
1781 dev_dbg(&dev
->interface
->dev
, "Target mode 0x%x len %d\n",
1784 if ((mode
& PN533_INIT_TARGET_RESP_FRAME_MASK
) ==
1785 PN533_INIT_TARGET_RESP_ACTIVE
)
1786 comm_mode
= NFC_COMM_ACTIVE
;
1788 if ((mode
& PN533_INIT_TARGET_RESP_DEP
) == 0) /* Only DEP supported */
1791 gb
= cmd
+ ATR_REQ_GB_OFFSET
;
1792 gb_len
= resp
->len
- (ATR_REQ_GB_OFFSET
+ 1);
1794 rc
= nfc_tm_activated(dev
->nfc_dev
, NFC_PROTO_NFC_DEP_MASK
,
1795 comm_mode
, gb
, gb_len
);
1797 nfc_err(&dev
->interface
->dev
,
1798 "Error when signaling target activation\n");
1803 queue_work(dev
->wq
, &dev
->tg_work
);
1808 static void pn533_listen_mode_timer(unsigned long data
)
1810 struct pn533
*dev
= (struct pn533
*)data
;
1812 dev_dbg(&dev
->interface
->dev
, "Listen mode timeout\n");
1814 dev
->cancel_listen
= 1;
1816 pn533_poll_next_mod(dev
);
1818 queue_delayed_work(dev
->wq
, &dev
->poll_work
,
1819 msecs_to_jiffies(PN533_POLL_INTERVAL
));
1822 static int pn533_rf_complete(struct pn533
*dev
, void *arg
,
1823 struct sk_buff
*resp
)
1827 dev_dbg(&dev
->interface
->dev
, "%s\n", __func__
);
1832 nfc_err(&dev
->interface
->dev
, "RF setting error %d", rc
);
1837 queue_delayed_work(dev
->wq
, &dev
->poll_work
,
1838 msecs_to_jiffies(PN533_POLL_INTERVAL
));
1840 dev_kfree_skb(resp
);
1844 static void pn533_wq_rf(struct work_struct
*work
)
1846 struct pn533
*dev
= container_of(work
, struct pn533
, rf_work
);
1847 struct sk_buff
*skb
;
1850 dev_dbg(&dev
->interface
->dev
, "%s\n", __func__
);
1852 skb
= pn533_alloc_skb(dev
, 2);
1856 *skb_put(skb
, 1) = PN533_CFGITEM_RF_FIELD
;
1857 *skb_put(skb
, 1) = PN533_CFGITEM_RF_FIELD_AUTO_RFCA
;
1859 rc
= pn533_send_cmd_async(dev
, PN533_CMD_RF_CONFIGURATION
, skb
,
1860 pn533_rf_complete
, NULL
);
1863 nfc_err(&dev
->interface
->dev
, "RF setting error %d\n", rc
);
1869 static int pn533_poll_dep_complete(struct pn533
*dev
, void *arg
,
1870 struct sk_buff
*resp
)
1872 struct pn533_cmd_jump_dep_response
*rsp
;
1873 struct nfc_target nfc_target
;
1878 return PTR_ERR(resp
);
1880 rsp
= (struct pn533_cmd_jump_dep_response
*)resp
->data
;
1882 rc
= rsp
->status
& PN533_CMD_RET_MASK
;
1883 if (rc
!= PN533_CMD_RET_SUCCESS
) {
1884 /* Not target found, turn radio off */
1885 queue_work(dev
->wq
, &dev
->rf_work
);
1887 dev_kfree_skb(resp
);
1891 dev_dbg(&dev
->interface
->dev
, "Creating new target");
1893 nfc_target
.supported_protocols
= NFC_PROTO_NFC_DEP_MASK
;
1894 nfc_target
.nfcid1_len
= 10;
1895 memcpy(nfc_target
.nfcid1
, rsp
->nfcid3t
, nfc_target
.nfcid1_len
);
1896 rc
= nfc_targets_found(dev
->nfc_dev
, &nfc_target
, 1);
1900 dev
->tgt_available_prots
= 0;
1901 dev
->tgt_active_prot
= NFC_PROTO_NFC_DEP
;
1903 /* ATR_RES general bytes are located at offset 17 */
1904 target_gt_len
= resp
->len
- 17;
1905 rc
= nfc_set_remote_general_bytes(dev
->nfc_dev
,
1906 rsp
->gt
, target_gt_len
);
1908 rc
= nfc_dep_link_is_up(dev
->nfc_dev
,
1909 dev
->nfc_dev
->targets
[0].idx
,
1910 0, NFC_RF_INITIATOR
);
1913 pn533_poll_reset_mod_list(dev
);
1916 dev_kfree_skb(resp
);
1920 #define PASSIVE_DATA_LEN 5
1921 static int pn533_poll_dep(struct nfc_dev
*nfc_dev
)
1923 struct pn533
*dev
= nfc_get_drvdata(nfc_dev
);
1924 struct sk_buff
*skb
;
1926 u8
*next
, nfcid3
[NFC_NFCID3_MAXSIZE
];
1927 u8 passive_data
[PASSIVE_DATA_LEN
] = {0x00, 0xff, 0xff, 0x00, 0x3};
1929 dev_dbg(&dev
->interface
->dev
, "%s", __func__
);
1932 dev
->gb
= nfc_get_local_general_bytes(nfc_dev
, &dev
->gb_len
);
1934 if (!dev
->gb
|| !dev
->gb_len
) {
1936 queue_work(dev
->wq
, &dev
->rf_work
);
1940 skb_len
= 3 + dev
->gb_len
; /* ActPass + BR + Next */
1941 skb_len
+= PASSIVE_DATA_LEN
;
1944 skb_len
+= NFC_NFCID3_MAXSIZE
;
1947 get_random_bytes(nfcid3
+ 2, 6);
1949 skb
= pn533_alloc_skb(dev
, skb_len
);
1953 *skb_put(skb
, 1) = 0x01; /* Active */
1954 *skb_put(skb
, 1) = 0x02; /* 424 kbps */
1956 next
= skb_put(skb
, 1); /* Next */
1959 /* Copy passive data */
1960 memcpy(skb_put(skb
, PASSIVE_DATA_LEN
), passive_data
, PASSIVE_DATA_LEN
);
1963 /* Copy NFCID3 (which is NFCID2 from SENSF_RES) */
1964 memcpy(skb_put(skb
, NFC_NFCID3_MAXSIZE
), nfcid3
,
1965 NFC_NFCID3_MAXSIZE
);
1968 memcpy(skb_put(skb
, dev
->gb_len
), dev
->gb
, dev
->gb_len
);
1969 *next
|= 4; /* We have some Gi */
1971 rc
= pn533_send_cmd_async(dev
, PN533_CMD_IN_JUMP_FOR_DEP
, skb
,
1972 pn533_poll_dep_complete
, NULL
);
1980 static int pn533_poll_complete(struct pn533
*dev
, void *arg
,
1981 struct sk_buff
*resp
)
1983 struct pn533_poll_modulations
*cur_mod
;
1986 dev_dbg(&dev
->interface
->dev
, "%s\n", __func__
);
1991 nfc_err(&dev
->interface
->dev
, "%s Poll complete error %d\n",
1994 if (rc
== -ENOENT
) {
1995 if (dev
->poll_mod_count
!= 0)
1999 } else if (rc
< 0) {
2000 nfc_err(&dev
->interface
->dev
,
2001 "Error %d when running poll\n", rc
);
2006 cur_mod
= dev
->poll_mod_active
[dev
->poll_mod_curr
];
2008 if (cur_mod
->len
== 0) { /* Target mode */
2009 del_timer(&dev
->listen_timer
);
2010 rc
= pn533_init_target_complete(dev
, resp
);
2014 /* Initiator mode */
2015 rc
= pn533_start_poll_complete(dev
, resp
);
2019 if (!dev
->poll_mod_count
) {
2020 dev_dbg(&dev
->interface
->dev
, "Polling has been stopped\n");
2024 pn533_poll_next_mod(dev
);
2025 /* Not target found, turn radio off */
2026 queue_work(dev
->wq
, &dev
->rf_work
);
2029 dev_kfree_skb(resp
);
2033 nfc_err(&dev
->interface
->dev
, "Polling operation has been stopped\n");
2035 pn533_poll_reset_mod_list(dev
);
2036 dev
->poll_protocols
= 0;
2040 static struct sk_buff
*pn533_alloc_poll_in_frame(struct pn533
*dev
,
2041 struct pn533_poll_modulations
*mod
)
2043 struct sk_buff
*skb
;
2045 skb
= pn533_alloc_skb(dev
, mod
->len
);
2049 memcpy(skb_put(skb
, mod
->len
), &mod
->data
, mod
->len
);
2054 static int pn533_send_poll_frame(struct pn533
*dev
)
2056 struct pn533_poll_modulations
*mod
;
2057 struct sk_buff
*skb
;
2061 mod
= dev
->poll_mod_active
[dev
->poll_mod_curr
];
2063 dev_dbg(&dev
->interface
->dev
, "%s mod len %d\n",
2064 __func__
, mod
->len
);
2066 if (dev
->poll_dep
) {
2068 return pn533_poll_dep(dev
->nfc_dev
);
2071 if (mod
->len
== 0) { /* Listen mode */
2072 cmd_code
= PN533_CMD_TG_INIT_AS_TARGET
;
2073 skb
= pn533_alloc_poll_tg_frame(dev
);
2074 } else { /* Polling mode */
2075 cmd_code
= PN533_CMD_IN_LIST_PASSIVE_TARGET
;
2076 skb
= pn533_alloc_poll_in_frame(dev
, mod
);
2080 nfc_err(&dev
->interface
->dev
, "Failed to allocate skb\n");
2084 rc
= pn533_send_cmd_async(dev
, cmd_code
, skb
, pn533_poll_complete
,
2088 nfc_err(&dev
->interface
->dev
, "Polling loop error %d\n", rc
);
2094 static void pn533_wq_poll(struct work_struct
*work
)
2096 struct pn533
*dev
= container_of(work
, struct pn533
, poll_work
.work
);
2097 struct pn533_poll_modulations
*cur_mod
;
2100 cur_mod
= dev
->poll_mod_active
[dev
->poll_mod_curr
];
2102 dev_dbg(&dev
->interface
->dev
,
2103 "%s cancel_listen %d modulation len %d\n",
2104 __func__
, dev
->cancel_listen
, cur_mod
->len
);
2106 if (dev
->cancel_listen
== 1) {
2107 dev
->cancel_listen
= 0;
2108 pn533_abort_cmd(dev
, GFP_ATOMIC
);
2111 rc
= pn533_send_poll_frame(dev
);
2115 if (cur_mod
->len
== 0 && dev
->poll_mod_count
> 1)
2116 mod_timer(&dev
->listen_timer
, jiffies
+ PN533_LISTEN_TIME
* HZ
);
2121 static int pn533_start_poll(struct nfc_dev
*nfc_dev
,
2122 u32 im_protocols
, u32 tm_protocols
)
2124 struct pn533
*dev
= nfc_get_drvdata(nfc_dev
);
2125 struct pn533_poll_modulations
*cur_mod
;
2129 dev_dbg(&dev
->interface
->dev
,
2130 "%s: im protocols 0x%x tm protocols 0x%x\n",
2131 __func__
, im_protocols
, tm_protocols
);
2133 if (dev
->tgt_active_prot
) {
2134 nfc_err(&dev
->interface
->dev
,
2135 "Cannot poll with a target already activated\n");
2139 if (dev
->tgt_mode
) {
2140 nfc_err(&dev
->interface
->dev
,
2141 "Cannot poll while already being activated\n");
2146 dev
->gb
= nfc_get_local_general_bytes(nfc_dev
, &dev
->gb_len
);
2147 if (dev
->gb
== NULL
)
2151 pn533_poll_create_mod_list(dev
, im_protocols
, tm_protocols
);
2152 dev
->poll_protocols
= im_protocols
;
2153 dev
->listen_protocols
= tm_protocols
;
2155 /* Do not always start polling from the same modulation */
2156 get_random_bytes(&rand_mod
, sizeof(rand_mod
));
2157 rand_mod
%= dev
->poll_mod_count
;
2158 dev
->poll_mod_curr
= rand_mod
;
2160 cur_mod
= dev
->poll_mod_active
[dev
->poll_mod_curr
];
2162 rc
= pn533_send_poll_frame(dev
);
2164 /* Start listen timer */
2165 if (!rc
&& cur_mod
->len
== 0 && dev
->poll_mod_count
> 1)
2166 mod_timer(&dev
->listen_timer
, jiffies
+ PN533_LISTEN_TIME
* HZ
);
2171 static void pn533_stop_poll(struct nfc_dev
*nfc_dev
)
2173 struct pn533
*dev
= nfc_get_drvdata(nfc_dev
);
2175 del_timer(&dev
->listen_timer
);
2177 if (!dev
->poll_mod_count
) {
2178 dev_dbg(&dev
->interface
->dev
,
2179 "Polling operation was not running\n");
2183 pn533_abort_cmd(dev
, GFP_KERNEL
);
2184 flush_delayed_work(&dev
->poll_work
);
2185 pn533_poll_reset_mod_list(dev
);
2188 static int pn533_activate_target_nfcdep(struct pn533
*dev
)
2190 struct pn533_cmd_activate_response
*rsp
;
2193 struct sk_buff
*skb
;
2194 struct sk_buff
*resp
;
2196 dev_dbg(&dev
->interface
->dev
, "%s\n", __func__
);
2198 skb
= pn533_alloc_skb(dev
, sizeof(u8
) * 2); /*TG + Next*/
2202 *skb_put(skb
, sizeof(u8
)) = 1; /* TG */
2203 *skb_put(skb
, sizeof(u8
)) = 0; /* Next */
2205 resp
= pn533_send_cmd_sync(dev
, PN533_CMD_IN_ATR
, skb
);
2207 return PTR_ERR(resp
);
2209 rsp
= (struct pn533_cmd_activate_response
*)resp
->data
;
2210 rc
= rsp
->status
& PN533_CMD_RET_MASK
;
2211 if (rc
!= PN533_CMD_RET_SUCCESS
) {
2212 nfc_err(&dev
->interface
->dev
,
2213 "Target activation failed (error 0x%x)\n", rc
);
2214 dev_kfree_skb(resp
);
2218 /* ATR_RES general bytes are located at offset 16 */
2219 gt_len
= resp
->len
- 16;
2220 rc
= nfc_set_remote_general_bytes(dev
->nfc_dev
, rsp
->gt
, gt_len
);
2222 dev_kfree_skb(resp
);
2226 static int pn533_activate_target(struct nfc_dev
*nfc_dev
,
2227 struct nfc_target
*target
, u32 protocol
)
2229 struct pn533
*dev
= nfc_get_drvdata(nfc_dev
);
2232 dev_dbg(&dev
->interface
->dev
, "%s: protocol=%u\n", __func__
, protocol
);
2234 if (dev
->poll_mod_count
) {
2235 nfc_err(&dev
->interface
->dev
,
2236 "Cannot activate while polling\n");
2240 if (dev
->tgt_active_prot
) {
2241 nfc_err(&dev
->interface
->dev
,
2242 "There is already an active target\n");
2246 if (!dev
->tgt_available_prots
) {
2247 nfc_err(&dev
->interface
->dev
,
2248 "There is no available target to activate\n");
2252 if (!(dev
->tgt_available_prots
& (1 << protocol
))) {
2253 nfc_err(&dev
->interface
->dev
,
2254 "Target doesn't support requested proto %u\n",
2259 if (protocol
== NFC_PROTO_NFC_DEP
) {
2260 rc
= pn533_activate_target_nfcdep(dev
);
2262 nfc_err(&dev
->interface
->dev
,
2263 "Activating target with DEP failed %d\n", rc
);
2268 dev
->tgt_active_prot
= protocol
;
2269 dev
->tgt_available_prots
= 0;
2274 static void pn533_deactivate_target(struct nfc_dev
*nfc_dev
,
2275 struct nfc_target
*target
)
2277 struct pn533
*dev
= nfc_get_drvdata(nfc_dev
);
2278 struct sk_buff
*skb
;
2279 struct sk_buff
*resp
;
2282 dev_dbg(&dev
->interface
->dev
, "%s\n", __func__
);
2284 if (!dev
->tgt_active_prot
) {
2285 nfc_err(&dev
->interface
->dev
, "There is no active target\n");
2289 dev
->tgt_active_prot
= 0;
2290 skb_queue_purge(&dev
->resp_q
);
2292 skb
= pn533_alloc_skb(dev
, sizeof(u8
));
2296 *skb_put(skb
, 1) = 1; /* TG*/
2298 resp
= pn533_send_cmd_sync(dev
, PN533_CMD_IN_RELEASE
, skb
);
2302 rc
= resp
->data
[0] & PN533_CMD_RET_MASK
;
2303 if (rc
!= PN533_CMD_RET_SUCCESS
)
2304 nfc_err(&dev
->interface
->dev
,
2305 "Error 0x%x when releasing the target\n", rc
);
2307 dev_kfree_skb(resp
);
2312 static int pn533_in_dep_link_up_complete(struct pn533
*dev
, void *arg
,
2313 struct sk_buff
*resp
)
2315 struct pn533_cmd_jump_dep_response
*rsp
;
2318 u8 active
= *(u8
*)arg
;
2323 return PTR_ERR(resp
);
2325 if (dev
->tgt_available_prots
&&
2326 !(dev
->tgt_available_prots
& (1 << NFC_PROTO_NFC_DEP
))) {
2327 nfc_err(&dev
->interface
->dev
,
2328 "The target does not support DEP\n");
2333 rsp
= (struct pn533_cmd_jump_dep_response
*)resp
->data
;
2335 rc
= rsp
->status
& PN533_CMD_RET_MASK
;
2336 if (rc
!= PN533_CMD_RET_SUCCESS
) {
2337 nfc_err(&dev
->interface
->dev
,
2338 "Bringing DEP link up failed (error 0x%x)\n", rc
);
2342 if (!dev
->tgt_available_prots
) {
2343 struct nfc_target nfc_target
;
2345 dev_dbg(&dev
->interface
->dev
, "Creating new target\n");
2347 nfc_target
.supported_protocols
= NFC_PROTO_NFC_DEP_MASK
;
2348 nfc_target
.nfcid1_len
= 10;
2349 memcpy(nfc_target
.nfcid1
, rsp
->nfcid3t
, nfc_target
.nfcid1_len
);
2350 rc
= nfc_targets_found(dev
->nfc_dev
, &nfc_target
, 1);
2354 dev
->tgt_available_prots
= 0;
2357 dev
->tgt_active_prot
= NFC_PROTO_NFC_DEP
;
2359 /* ATR_RES general bytes are located at offset 17 */
2360 target_gt_len
= resp
->len
- 17;
2361 rc
= nfc_set_remote_general_bytes(dev
->nfc_dev
,
2362 rsp
->gt
, target_gt_len
);
2364 rc
= nfc_dep_link_is_up(dev
->nfc_dev
,
2365 dev
->nfc_dev
->targets
[0].idx
,
2366 !active
, NFC_RF_INITIATOR
);
2369 dev_kfree_skb(resp
);
2373 static int pn533_rf_field(struct nfc_dev
*nfc_dev
, u8 rf
);
2374 static int pn533_dep_link_up(struct nfc_dev
*nfc_dev
, struct nfc_target
*target
,
2375 u8 comm_mode
, u8
*gb
, size_t gb_len
)
2377 struct pn533
*dev
= nfc_get_drvdata(nfc_dev
);
2378 struct sk_buff
*skb
;
2380 u8
*next
, *arg
, nfcid3
[NFC_NFCID3_MAXSIZE
];
2381 u8 passive_data
[PASSIVE_DATA_LEN
] = {0x00, 0xff, 0xff, 0x00, 0x3};
2383 dev_dbg(&dev
->interface
->dev
, "%s\n", __func__
);
2385 if (dev
->poll_mod_count
) {
2386 nfc_err(&dev
->interface
->dev
,
2387 "Cannot bring the DEP link up while polling\n");
2391 if (dev
->tgt_active_prot
) {
2392 nfc_err(&dev
->interface
->dev
,
2393 "There is already an active target\n");
2397 skb_len
= 3 + gb_len
; /* ActPass + BR + Next */
2398 skb_len
+= PASSIVE_DATA_LEN
;
2401 skb_len
+= NFC_NFCID3_MAXSIZE
;
2402 if (target
&& !target
->nfcid2_len
) {
2405 get_random_bytes(nfcid3
+ 2, 6);
2408 skb
= pn533_alloc_skb(dev
, skb_len
);
2412 *skb_put(skb
, 1) = !comm_mode
; /* ActPass */
2413 *skb_put(skb
, 1) = 0x02; /* 424 kbps */
2415 next
= skb_put(skb
, 1); /* Next */
2418 /* Copy passive data */
2419 memcpy(skb_put(skb
, PASSIVE_DATA_LEN
), passive_data
, PASSIVE_DATA_LEN
);
2422 /* Copy NFCID3 (which is NFCID2 from SENSF_RES) */
2423 if (target
&& target
->nfcid2_len
)
2424 memcpy(skb_put(skb
, NFC_NFCID3_MAXSIZE
), target
->nfcid2
,
2425 target
->nfcid2_len
);
2427 memcpy(skb_put(skb
, NFC_NFCID3_MAXSIZE
), nfcid3
,
2428 NFC_NFCID3_MAXSIZE
);
2431 if (gb
!= NULL
&& gb_len
> 0) {
2432 memcpy(skb_put(skb
, gb_len
), gb
, gb_len
);
2433 *next
|= 4; /* We have some Gi */
2438 arg
= kmalloc(sizeof(*arg
), GFP_KERNEL
);
2446 pn533_rf_field(dev
->nfc_dev
, 0);
2448 rc
= pn533_send_cmd_async(dev
, PN533_CMD_IN_JUMP_FOR_DEP
, skb
,
2449 pn533_in_dep_link_up_complete
, arg
);
2459 static int pn533_dep_link_down(struct nfc_dev
*nfc_dev
)
2461 struct pn533
*dev
= nfc_get_drvdata(nfc_dev
);
2463 dev_dbg(&dev
->interface
->dev
, "%s\n", __func__
);
2465 pn533_poll_reset_mod_list(dev
);
2467 if (dev
->tgt_mode
|| dev
->tgt_active_prot
)
2468 pn533_abort_cmd(dev
, GFP_KERNEL
);
2470 dev
->tgt_active_prot
= 0;
2473 skb_queue_purge(&dev
->resp_q
);
2478 struct pn533_data_exchange_arg
{
2479 data_exchange_cb_t cb
;
2483 static struct sk_buff
*pn533_build_response(struct pn533
*dev
)
2485 struct sk_buff
*skb
, *tmp
, *t
;
2486 unsigned int skb_len
= 0, tmp_len
= 0;
2488 dev_dbg(&dev
->interface
->dev
, "%s\n", __func__
);
2490 if (skb_queue_empty(&dev
->resp_q
))
2493 if (skb_queue_len(&dev
->resp_q
) == 1) {
2494 skb
= skb_dequeue(&dev
->resp_q
);
2498 skb_queue_walk_safe(&dev
->resp_q
, tmp
, t
)
2499 skb_len
+= tmp
->len
;
2501 dev_dbg(&dev
->interface
->dev
, "%s total length %d\n",
2504 skb
= alloc_skb(skb_len
, GFP_KERNEL
);
2508 skb_put(skb
, skb_len
);
2510 skb_queue_walk_safe(&dev
->resp_q
, tmp
, t
) {
2511 memcpy(skb
->data
+ tmp_len
, tmp
->data
, tmp
->len
);
2512 tmp_len
+= tmp
->len
;
2516 skb_queue_purge(&dev
->resp_q
);
2521 static int pn533_data_exchange_complete(struct pn533
*dev
, void *_arg
,
2522 struct sk_buff
*resp
)
2524 struct pn533_data_exchange_arg
*arg
= _arg
;
2525 struct sk_buff
*skb
;
2529 dev_dbg(&dev
->interface
->dev
, "%s\n", __func__
);
2536 status
= resp
->data
[0];
2537 ret
= status
& PN533_CMD_RET_MASK
;
2538 mi
= status
& PN533_CMD_MI_MASK
;
2540 skb_pull(resp
, sizeof(status
));
2542 if (ret
!= PN533_CMD_RET_SUCCESS
) {
2543 nfc_err(&dev
->interface
->dev
,
2544 "Exchanging data failed (error 0x%x)\n", ret
);
2549 skb_queue_tail(&dev
->resp_q
, resp
);
2552 dev
->cmd_complete_mi_arg
= arg
;
2553 queue_work(dev
->wq
, &dev
->mi_rx_work
);
2554 return -EINPROGRESS
;
2557 /* Prepare for the next round */
2558 if (skb_queue_len(&dev
->fragment_skb
) > 0) {
2559 dev
->cmd_complete_dep_arg
= arg
;
2560 queue_work(dev
->wq
, &dev
->mi_tx_work
);
2562 return -EINPROGRESS
;
2565 skb
= pn533_build_response(dev
);
2569 arg
->cb(arg
->cb_context
, skb
, 0);
2574 dev_kfree_skb(resp
);
2576 skb_queue_purge(&dev
->resp_q
);
2577 arg
->cb(arg
->cb_context
, NULL
, rc
);
2582 /* Split the Tx skb into small chunks */
2583 static int pn533_fill_fragment_skbs(struct pn533
*dev
, struct sk_buff
*skb
)
2585 struct sk_buff
*frag
;
2589 /* Remaining size */
2590 if (skb
->len
> PN533_CMD_DATAFRAME_MAXLEN
)
2591 frag_size
= PN533_CMD_DATAFRAME_MAXLEN
;
2593 frag_size
= skb
->len
;
2595 /* Allocate and reserve */
2596 frag
= pn533_alloc_skb(dev
, frag_size
);
2598 skb_queue_purge(&dev
->fragment_skb
);
2602 if (!dev
->tgt_mode
) {
2603 /* Reserve the TG/MI byte */
2604 skb_reserve(frag
, 1);
2607 if (frag_size
== PN533_CMD_DATAFRAME_MAXLEN
)
2608 *skb_push(frag
, sizeof(u8
)) =
2609 (PN533_CMD_MI_MASK
| 1);
2611 *skb_push(frag
, sizeof(u8
)) = 1; /* TG */
2614 memcpy(skb_put(frag
, frag_size
), skb
->data
, frag_size
);
2616 /* Reduce the size of incoming buffer */
2617 skb_pull(skb
, frag_size
);
2619 /* Add this to skb_queue */
2620 skb_queue_tail(&dev
->fragment_skb
, frag
);
2622 } while (skb
->len
> 0);
2626 return skb_queue_len(&dev
->fragment_skb
);
2629 static int pn533_transceive(struct nfc_dev
*nfc_dev
,
2630 struct nfc_target
*target
, struct sk_buff
*skb
,
2631 data_exchange_cb_t cb
, void *cb_context
)
2633 struct pn533
*dev
= nfc_get_drvdata(nfc_dev
);
2634 struct pn533_data_exchange_arg
*arg
= NULL
;
2637 dev_dbg(&dev
->interface
->dev
, "%s\n", __func__
);
2639 if (!dev
->tgt_active_prot
) {
2640 nfc_err(&dev
->interface
->dev
,
2641 "Can't exchange data if there is no active target\n");
2646 arg
= kmalloc(sizeof(*arg
), GFP_KERNEL
);
2653 arg
->cb_context
= cb_context
;
2655 switch (dev
->device_type
) {
2656 case PN533_DEVICE_PASORI
:
2657 if (dev
->tgt_active_prot
== NFC_PROTO_FELICA
) {
2658 rc
= pn533_send_data_async(dev
, PN533_CMD_IN_COMM_THRU
,
2660 pn533_data_exchange_complete
,
2667 if (skb
->len
> PN533_CMD_DATAEXCH_DATA_MAXLEN
) {
2668 rc
= pn533_fill_fragment_skbs(dev
, skb
);
2672 skb
= skb_dequeue(&dev
->fragment_skb
);
2678 *skb_push(skb
, sizeof(u8
)) = 1; /* TG */
2681 rc
= pn533_send_data_async(dev
, PN533_CMD_IN_DATA_EXCHANGE
,
2682 skb
, pn533_data_exchange_complete
,
2688 if (rc
< 0) /* rc from send_async */
2699 static int pn533_tm_send_complete(struct pn533
*dev
, void *arg
,
2700 struct sk_buff
*resp
)
2704 dev_dbg(&dev
->interface
->dev
, "%s\n", __func__
);
2707 return PTR_ERR(resp
);
2709 status
= resp
->data
[0];
2711 /* Prepare for the next round */
2712 if (skb_queue_len(&dev
->fragment_skb
) > 0) {
2713 queue_work(dev
->wq
, &dev
->mi_tm_tx_work
);
2714 return -EINPROGRESS
;
2716 dev_kfree_skb(resp
);
2719 nfc_tm_deactivated(dev
->nfc_dev
);
2726 queue_work(dev
->wq
, &dev
->tg_work
);
2731 static int pn533_tm_send(struct nfc_dev
*nfc_dev
, struct sk_buff
*skb
)
2733 struct pn533
*dev
= nfc_get_drvdata(nfc_dev
);
2736 dev_dbg(&dev
->interface
->dev
, "%s\n", __func__
);
2738 /* let's split in multiple chunks if size's too big */
2739 if (skb
->len
> PN533_CMD_DATAEXCH_DATA_MAXLEN
) {
2740 rc
= pn533_fill_fragment_skbs(dev
, skb
);
2744 /* get the first skb */
2745 skb
= skb_dequeue(&dev
->fragment_skb
);
2751 rc
= pn533_send_data_async(dev
, PN533_CMD_TG_SET_META_DATA
, skb
,
2752 pn533_tm_send_complete
, NULL
);
2755 rc
= pn533_send_data_async(dev
, PN533_CMD_TG_SET_DATA
, skb
,
2756 pn533_tm_send_complete
, NULL
);
2762 skb_queue_purge(&dev
->fragment_skb
);
2768 static void pn533_wq_mi_recv(struct work_struct
*work
)
2770 struct pn533
*dev
= container_of(work
, struct pn533
, mi_rx_work
);
2771 struct sk_buff
*skb
;
2774 dev_dbg(&dev
->interface
->dev
, "%s\n", __func__
);
2776 skb
= pn533_alloc_skb(dev
, PN533_CMD_DATAEXCH_HEAD_LEN
);
2780 switch (dev
->device_type
) {
2781 case PN533_DEVICE_PASORI
:
2782 if (dev
->tgt_active_prot
== NFC_PROTO_FELICA
) {
2783 rc
= pn533_send_cmd_direct_async(dev
,
2784 PN533_CMD_IN_COMM_THRU
,
2786 pn533_data_exchange_complete
,
2787 dev
->cmd_complete_mi_arg
);
2792 *skb_put(skb
, sizeof(u8
)) = 1; /*TG*/
2794 rc
= pn533_send_cmd_direct_async(dev
,
2795 PN533_CMD_IN_DATA_EXCHANGE
,
2797 pn533_data_exchange_complete
,
2798 dev
->cmd_complete_mi_arg
);
2803 if (rc
== 0) /* success */
2806 nfc_err(&dev
->interface
->dev
,
2807 "Error %d when trying to perform data_exchange\n", rc
);
2810 kfree(dev
->cmd_complete_mi_arg
);
2813 pn533_send_ack(dev
, GFP_KERNEL
);
2814 queue_work(dev
->wq
, &dev
->cmd_work
);
2817 static void pn533_wq_mi_send(struct work_struct
*work
)
2819 struct pn533
*dev
= container_of(work
, struct pn533
, mi_tx_work
);
2820 struct sk_buff
*skb
;
2823 dev_dbg(&dev
->interface
->dev
, "%s\n", __func__
);
2825 /* Grab the first skb in the queue */
2826 skb
= skb_dequeue(&dev
->fragment_skb
);
2828 if (skb
== NULL
) { /* No more data */
2829 /* Reset the queue for future use */
2830 skb_queue_head_init(&dev
->fragment_skb
);
2834 switch (dev
->device_type
) {
2835 case PN533_DEVICE_PASORI
:
2836 if (dev
->tgt_active_prot
!= NFC_PROTO_FELICA
) {
2841 rc
= pn533_send_cmd_direct_async(dev
, PN533_CMD_IN_COMM_THRU
,
2843 pn533_data_exchange_complete
,
2844 dev
->cmd_complete_dep_arg
);
2849 /* Still some fragments? */
2850 rc
= pn533_send_cmd_direct_async(dev
,PN533_CMD_IN_DATA_EXCHANGE
,
2852 pn533_data_exchange_complete
,
2853 dev
->cmd_complete_dep_arg
);
2858 if (rc
== 0) /* success */
2861 nfc_err(&dev
->interface
->dev
,
2862 "Error %d when trying to perform data_exchange\n", rc
);
2865 kfree(dev
->cmd_complete_dep_arg
);
2868 pn533_send_ack(dev
, GFP_KERNEL
);
2869 queue_work(dev
->wq
, &dev
->cmd_work
);
2872 static int pn533_set_configuration(struct pn533
*dev
, u8 cfgitem
, u8
*cfgdata
,
2875 struct sk_buff
*skb
;
2876 struct sk_buff
*resp
;
2879 dev_dbg(&dev
->interface
->dev
, "%s\n", __func__
);
2881 skb_len
= sizeof(cfgitem
) + cfgdata_len
; /* cfgitem + cfgdata */
2883 skb
= pn533_alloc_skb(dev
, skb_len
);
2887 *skb_put(skb
, sizeof(cfgitem
)) = cfgitem
;
2888 memcpy(skb_put(skb
, cfgdata_len
), cfgdata
, cfgdata_len
);
2890 resp
= pn533_send_cmd_sync(dev
, PN533_CMD_RF_CONFIGURATION
, skb
);
2892 return PTR_ERR(resp
);
2894 dev_kfree_skb(resp
);
2898 static int pn533_get_firmware_version(struct pn533
*dev
,
2899 struct pn533_fw_version
*fv
)
2901 struct sk_buff
*skb
;
2902 struct sk_buff
*resp
;
2904 skb
= pn533_alloc_skb(dev
, 0);
2908 resp
= pn533_send_cmd_sync(dev
, PN533_CMD_GET_FIRMWARE_VERSION
, skb
);
2910 return PTR_ERR(resp
);
2912 fv
->ic
= resp
->data
[0];
2913 fv
->ver
= resp
->data
[1];
2914 fv
->rev
= resp
->data
[2];
2915 fv
->support
= resp
->data
[3];
2917 dev_kfree_skb(resp
);
2921 static int pn533_pasori_fw_reset(struct pn533
*dev
)
2923 struct sk_buff
*skb
;
2924 struct sk_buff
*resp
;
2926 dev_dbg(&dev
->interface
->dev
, "%s\n", __func__
);
2928 skb
= pn533_alloc_skb(dev
, sizeof(u8
));
2932 *skb_put(skb
, sizeof(u8
)) = 0x1;
2934 resp
= pn533_send_cmd_sync(dev
, 0x18, skb
);
2936 return PTR_ERR(resp
);
2938 dev_kfree_skb(resp
);
2943 struct pn533_acr122_poweron_rdr_arg
{
2945 struct completion done
;
2948 static void pn533_acr122_poweron_rdr_resp(struct urb
*urb
)
2950 struct pn533_acr122_poweron_rdr_arg
*arg
= urb
->context
;
2952 dev_dbg(&urb
->dev
->dev
, "%s\n", __func__
);
2954 print_hex_dump_debug("ACR122 RX: ", DUMP_PREFIX_NONE
, 16, 1,
2955 urb
->transfer_buffer
, urb
->transfer_buffer_length
,
2958 arg
->rc
= urb
->status
;
2959 complete(&arg
->done
);
2962 static int pn533_acr122_poweron_rdr(struct pn533
*dev
)
2964 /* Power on th reader (CCID cmd) */
2965 u8 cmd
[10] = {PN533_ACR122_PC_TO_RDR_ICCPOWERON
,
2966 0, 0, 0, 0, 0, 0, 3, 0, 0};
2970 struct pn533_acr122_poweron_rdr_arg arg
;
2972 dev_dbg(&dev
->interface
->dev
, "%s\n", __func__
);
2974 init_completion(&arg
.done
);
2975 cntx
= dev
->in_urb
->context
; /* backup context */
2977 dev
->in_urb
->transfer_buffer
= buf
;
2978 dev
->in_urb
->transfer_buffer_length
= 255;
2979 dev
->in_urb
->complete
= pn533_acr122_poweron_rdr_resp
;
2980 dev
->in_urb
->context
= &arg
;
2982 dev
->out_urb
->transfer_buffer
= cmd
;
2983 dev
->out_urb
->transfer_buffer_length
= sizeof(cmd
);
2985 print_hex_dump_debug("ACR122 TX: ", DUMP_PREFIX_NONE
, 16, 1,
2986 cmd
, sizeof(cmd
), false);
2988 rc
= usb_submit_urb(dev
->out_urb
, GFP_KERNEL
);
2990 nfc_err(&dev
->interface
->dev
,
2991 "Reader power on cmd error %d\n", rc
);
2995 rc
= usb_submit_urb(dev
->in_urb
, GFP_KERNEL
);
2997 nfc_err(&dev
->interface
->dev
,
2998 "Can't submit reader poweron cmd response %d\n", rc
);
3002 wait_for_completion(&arg
.done
);
3003 dev
->in_urb
->context
= cntx
; /* restore context */
3008 static int pn533_rf_field(struct nfc_dev
*nfc_dev
, u8 rf
)
3010 struct pn533
*dev
= nfc_get_drvdata(nfc_dev
);
3014 rf_field
|= PN533_CFGITEM_RF_FIELD_AUTO_RFCA
;
3016 rc
= pn533_set_configuration(dev
, PN533_CFGITEM_RF_FIELD
,
3017 (u8
*)&rf_field
, 1);
3019 nfc_err(&dev
->interface
->dev
, "Error on setting RF field\n");
3026 static int pn533_dev_up(struct nfc_dev
*nfc_dev
)
3028 return pn533_rf_field(nfc_dev
, 1);
3031 static int pn533_dev_down(struct nfc_dev
*nfc_dev
)
3033 return pn533_rf_field(nfc_dev
, 0);
3036 static struct nfc_ops pn533_nfc_ops
= {
3037 .dev_up
= pn533_dev_up
,
3038 .dev_down
= pn533_dev_down
,
3039 .dep_link_up
= pn533_dep_link_up
,
3040 .dep_link_down
= pn533_dep_link_down
,
3041 .start_poll
= pn533_start_poll
,
3042 .stop_poll
= pn533_stop_poll
,
3043 .activate_target
= pn533_activate_target
,
3044 .deactivate_target
= pn533_deactivate_target
,
3045 .im_transceive
= pn533_transceive
,
3046 .tm_send
= pn533_tm_send
,
3049 static int pn533_setup(struct pn533
*dev
)
3051 struct pn533_config_max_retries max_retries
;
3052 struct pn533_config_timing timing
;
3053 u8 pasori_cfg
[3] = {0x08, 0x01, 0x08};
3056 switch (dev
->device_type
) {
3057 case PN533_DEVICE_STD
:
3058 case PN533_DEVICE_PASORI
:
3059 case PN533_DEVICE_ACR122U
:
3060 max_retries
.mx_rty_atr
= 0x2;
3061 max_retries
.mx_rty_psl
= 0x1;
3062 max_retries
.mx_rty_passive_act
=
3063 PN533_CONFIG_MAX_RETRIES_NO_RETRY
;
3065 timing
.rfu
= PN533_CONFIG_TIMING_102
;
3066 timing
.atr_res_timeout
= PN533_CONFIG_TIMING_102
;
3067 timing
.dep_timeout
= PN533_CONFIG_TIMING_204
;
3072 nfc_err(&dev
->interface
->dev
, "Unknown device type %d\n",
3077 rc
= pn533_set_configuration(dev
, PN533_CFGITEM_MAX_RETRIES
,
3078 (u8
*)&max_retries
, sizeof(max_retries
));
3080 nfc_err(&dev
->interface
->dev
,
3081 "Error on setting MAX_RETRIES config\n");
3086 rc
= pn533_set_configuration(dev
, PN533_CFGITEM_TIMING
,
3087 (u8
*)&timing
, sizeof(timing
));
3089 nfc_err(&dev
->interface
->dev
, "Error on setting RF timings\n");
3093 switch (dev
->device_type
) {
3094 case PN533_DEVICE_STD
:
3097 case PN533_DEVICE_PASORI
:
3098 pn533_pasori_fw_reset(dev
);
3100 rc
= pn533_set_configuration(dev
, PN533_CFGITEM_PASORI
,
3103 nfc_err(&dev
->interface
->dev
,
3104 "Error while settings PASORI config\n");
3108 pn533_pasori_fw_reset(dev
);
3116 static int pn533_probe(struct usb_interface
*interface
,
3117 const struct usb_device_id
*id
)
3119 struct pn533_fw_version fw_ver
;
3121 struct usb_host_interface
*iface_desc
;
3122 struct usb_endpoint_descriptor
*endpoint
;
3123 int in_endpoint
= 0;
3124 int out_endpoint
= 0;
3129 dev
= kzalloc(sizeof(*dev
), GFP_KERNEL
);
3133 dev
->udev
= usb_get_dev(interface_to_usbdev(interface
));
3134 dev
->interface
= interface
;
3135 mutex_init(&dev
->cmd_lock
);
3137 iface_desc
= interface
->cur_altsetting
;
3138 for (i
= 0; i
< iface_desc
->desc
.bNumEndpoints
; ++i
) {
3139 endpoint
= &iface_desc
->endpoint
[i
].desc
;
3141 if (!in_endpoint
&& usb_endpoint_is_bulk_in(endpoint
))
3142 in_endpoint
= endpoint
->bEndpointAddress
;
3144 if (!out_endpoint
&& usb_endpoint_is_bulk_out(endpoint
))
3145 out_endpoint
= endpoint
->bEndpointAddress
;
3148 if (!in_endpoint
|| !out_endpoint
) {
3149 nfc_err(&interface
->dev
,
3150 "Could not find bulk-in or bulk-out endpoint\n");
3155 dev
->in_urb
= usb_alloc_urb(0, GFP_KERNEL
);
3156 dev
->out_urb
= usb_alloc_urb(0, GFP_KERNEL
);
3158 if (!dev
->in_urb
|| !dev
->out_urb
)
3161 usb_fill_bulk_urb(dev
->in_urb
, dev
->udev
,
3162 usb_rcvbulkpipe(dev
->udev
, in_endpoint
),
3163 NULL
, 0, NULL
, dev
);
3164 usb_fill_bulk_urb(dev
->out_urb
, dev
->udev
,
3165 usb_sndbulkpipe(dev
->udev
, out_endpoint
),
3166 NULL
, 0, pn533_send_complete
, dev
);
3168 INIT_WORK(&dev
->cmd_work
, pn533_wq_cmd
);
3169 INIT_WORK(&dev
->cmd_complete_work
, pn533_wq_cmd_complete
);
3170 INIT_WORK(&dev
->mi_rx_work
, pn533_wq_mi_recv
);
3171 INIT_WORK(&dev
->mi_tx_work
, pn533_wq_mi_send
);
3172 INIT_WORK(&dev
->tg_work
, pn533_wq_tg_get_data
);
3173 INIT_WORK(&dev
->mi_tm_rx_work
, pn533_wq_tm_mi_recv
);
3174 INIT_WORK(&dev
->mi_tm_tx_work
, pn533_wq_tm_mi_send
);
3175 INIT_DELAYED_WORK(&dev
->poll_work
, pn533_wq_poll
);
3176 INIT_WORK(&dev
->rf_work
, pn533_wq_rf
);
3177 dev
->wq
= alloc_ordered_workqueue("pn533", 0);
3178 if (dev
->wq
== NULL
)
3181 init_timer(&dev
->listen_timer
);
3182 dev
->listen_timer
.data
= (unsigned long) dev
;
3183 dev
->listen_timer
.function
= pn533_listen_mode_timer
;
3185 skb_queue_head_init(&dev
->resp_q
);
3186 skb_queue_head_init(&dev
->fragment_skb
);
3188 INIT_LIST_HEAD(&dev
->cmd_queue
);
3190 usb_set_intfdata(interface
, dev
);
3192 dev
->ops
= &pn533_std_frame_ops
;
3194 dev
->protocol_type
= PN533_PROTO_REQ_ACK_RESP
;
3195 dev
->device_type
= id
->driver_info
;
3196 switch (dev
->device_type
) {
3197 case PN533_DEVICE_STD
:
3198 protocols
= PN533_ALL_PROTOCOLS
;
3201 case PN533_DEVICE_PASORI
:
3202 protocols
= PN533_NO_TYPE_B_PROTOCOLS
;
3205 case PN533_DEVICE_ACR122U
:
3206 protocols
= PN533_NO_TYPE_B_PROTOCOLS
;
3207 dev
->ops
= &pn533_acr122_frame_ops
;
3208 dev
->protocol_type
= PN533_PROTO_REQ_RESP
,
3210 rc
= pn533_acr122_poweron_rdr(dev
);
3212 nfc_err(&dev
->interface
->dev
,
3213 "Couldn't poweron the reader (error %d)\n", rc
);
3219 nfc_err(&dev
->interface
->dev
, "Unknown device type %d\n",
3225 memset(&fw_ver
, 0, sizeof(fw_ver
));
3226 rc
= pn533_get_firmware_version(dev
, &fw_ver
);
3230 nfc_info(&dev
->interface
->dev
,
3231 "NXP PN5%02X firmware ver %d.%d now attached\n",
3232 fw_ver
.ic
, fw_ver
.ver
, fw_ver
.rev
);
3235 dev
->nfc_dev
= nfc_allocate_device(&pn533_nfc_ops
, protocols
,
3236 dev
->ops
->tx_header_len
+
3237 PN533_CMD_DATAEXCH_HEAD_LEN
,
3238 dev
->ops
->tx_tail_len
);
3239 if (!dev
->nfc_dev
) {
3244 nfc_set_parent_dev(dev
->nfc_dev
, &interface
->dev
);
3245 nfc_set_drvdata(dev
->nfc_dev
, dev
);
3247 rc
= nfc_register_device(dev
->nfc_dev
);
3251 rc
= pn533_setup(dev
);
3253 goto unregister_nfc_dev
;
3258 nfc_unregister_device(dev
->nfc_dev
);
3261 nfc_free_device(dev
->nfc_dev
);
3264 destroy_workqueue(dev
->wq
);
3266 usb_free_urb(dev
->in_urb
);
3267 usb_free_urb(dev
->out_urb
);
3268 usb_put_dev(dev
->udev
);
3273 static void pn533_disconnect(struct usb_interface
*interface
)
3276 struct pn533_cmd
*cmd
, *n
;
3278 dev
= usb_get_intfdata(interface
);
3279 usb_set_intfdata(interface
, NULL
);
3281 nfc_unregister_device(dev
->nfc_dev
);
3282 nfc_free_device(dev
->nfc_dev
);
3284 usb_kill_urb(dev
->in_urb
);
3285 usb_kill_urb(dev
->out_urb
);
3287 flush_delayed_work(&dev
->poll_work
);
3288 destroy_workqueue(dev
->wq
);
3290 skb_queue_purge(&dev
->resp_q
);
3292 del_timer(&dev
->listen_timer
);
3294 list_for_each_entry_safe(cmd
, n
, &dev
->cmd_queue
, queue
) {
3295 list_del(&cmd
->queue
);
3299 usb_free_urb(dev
->in_urb
);
3300 usb_free_urb(dev
->out_urb
);
3303 nfc_info(&interface
->dev
, "NXP PN533 NFC device disconnected\n");
3306 static struct usb_driver pn533_driver
= {
3308 .probe
= pn533_probe
,
3309 .disconnect
= pn533_disconnect
,
3310 .id_table
= pn533_table
,
3313 module_usb_driver(pn533_driver
);
3315 MODULE_AUTHOR("Lauro Ramos Venancio <lauro.venancio@openbossa.org>");
3316 MODULE_AUTHOR("Aloisio Almeida Jr <aloisio.almeida@openbossa.org>");
3317 MODULE_AUTHOR("Waldemar Rymarkiewicz <waldemar.rymarkiewicz@tieto.com>");
3318 MODULE_DESCRIPTION("PN533 usb driver ver " VERSION
);
3319 MODULE_VERSION(VERSION
);
3320 MODULE_LICENSE("GPL");