2 * Copyright (C) 2011 Instituto Nokia de Tecnologia
5 * Lauro Ramos Venancio <lauro.venancio@openbossa.org>
6 * Aloisio Almeida Jr <aloisio.almeida@openbossa.org>
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License as published by
10 * the Free Software Foundation; either version 2 of the License, or
11 * (at your option) any later version.
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
18 * You should have received a copy of the GNU General Public License
19 * along with this program; if not, write to the
20 * Free Software Foundation, Inc.,
21 * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
24 #include <linux/device.h>
25 #include <linux/kernel.h>
26 #include <linux/module.h>
27 #include <linux/slab.h>
28 #include <linux/usb.h>
29 #include <linux/nfc.h>
30 #include <linux/netdevice.h>
31 #include <net/nfc/nfc.h>
35 #define PN533_VENDOR_ID 0x4CC
36 #define PN533_PRODUCT_ID 0x2533
38 #define SCM_VENDOR_ID 0x4E6
39 #define SCL3711_PRODUCT_ID 0x5591
41 #define SONY_VENDOR_ID 0x054c
42 #define PASORI_PRODUCT_ID 0x02e1
44 #define PN533_QUIRKS_TYPE_A BIT(0)
45 #define PN533_QUIRKS_TYPE_F BIT(1)
46 #define PN533_QUIRKS_DEP BIT(2)
47 #define PN533_QUIRKS_RAW_EXCHANGE BIT(3)
49 #define PN533_DEVICE_STD 0x1
50 #define PN533_DEVICE_PASORI 0x2
52 #define PN533_ALL_PROTOCOLS (NFC_PROTO_JEWEL_MASK | NFC_PROTO_MIFARE_MASK |\
53 NFC_PROTO_FELICA_MASK | NFC_PROTO_ISO14443_MASK |\
54 NFC_PROTO_NFC_DEP_MASK |\
55 NFC_PROTO_ISO14443_B_MASK)
57 #define PN533_NO_TYPE_B_PROTOCOLS (NFC_PROTO_JEWEL_MASK | \
58 NFC_PROTO_MIFARE_MASK | \
59 NFC_PROTO_FELICA_MASK | \
60 NFC_PROTO_ISO14443_MASK | \
61 NFC_PROTO_NFC_DEP_MASK)
63 static const struct usb_device_id pn533_table
[] = {
64 { .match_flags
= USB_DEVICE_ID_MATCH_DEVICE
,
65 .idVendor
= PN533_VENDOR_ID
,
66 .idProduct
= PN533_PRODUCT_ID
,
67 .driver_info
= PN533_DEVICE_STD
,
69 { .match_flags
= USB_DEVICE_ID_MATCH_DEVICE
,
70 .idVendor
= SCM_VENDOR_ID
,
71 .idProduct
= SCL3711_PRODUCT_ID
,
72 .driver_info
= PN533_DEVICE_STD
,
74 { .match_flags
= USB_DEVICE_ID_MATCH_DEVICE
,
75 .idVendor
= SONY_VENDOR_ID
,
76 .idProduct
= PASORI_PRODUCT_ID
,
77 .driver_info
= PN533_DEVICE_PASORI
,
81 MODULE_DEVICE_TABLE(usb
, pn533_table
);
83 /* How much time we spend listening for initiators */
84 #define PN533_LISTEN_TIME 2
86 /* frame definitions */
87 #define PN533_NORMAL_FRAME_MAX_LEN 262 /* 6 (PREAMBLE, SOF, LEN, LCS, TFI)
91 #define PN533_FRAME_TAIL_SIZE 2
92 #define PN533_FRAME_SIZE(f) (sizeof(struct pn533_frame) + f->datalen + \
93 PN533_FRAME_TAIL_SIZE)
94 #define PN533_FRAME_ACK_SIZE (sizeof(struct pn533_frame) + 1)
95 #define PN533_FRAME_CHECKSUM(f) (f->data[f->datalen])
96 #define PN533_FRAME_POSTAMBLE(f) (f->data[f->datalen + 1])
99 #define PN533_SOF 0x00FF
101 /* frame identifier: in/out/error */
102 #define PN533_FRAME_IDENTIFIER(f) (f->data[0])
103 #define PN533_DIR_OUT 0xD4
104 #define PN533_DIR_IN 0xD5
107 #define PN533_FRAME_CMD(f) (f->data[1])
108 #define PN533_FRAME_CMD_PARAMS_PTR(f) (&f->data[2])
109 #define PN533_FRAME_CMD_PARAMS_LEN(f) (f->datalen - 2)
111 #define PN533_CMD_GET_FIRMWARE_VERSION 0x02
112 #define PN533_CMD_RF_CONFIGURATION 0x32
113 #define PN533_CMD_IN_DATA_EXCHANGE 0x40
114 #define PN533_CMD_IN_COMM_THRU 0x42
115 #define PN533_CMD_IN_LIST_PASSIVE_TARGET 0x4A
116 #define PN533_CMD_IN_ATR 0x50
117 #define PN533_CMD_IN_RELEASE 0x52
118 #define PN533_CMD_IN_JUMP_FOR_DEP 0x56
120 #define PN533_CMD_TG_INIT_AS_TARGET 0x8c
121 #define PN533_CMD_TG_GET_DATA 0x86
122 #define PN533_CMD_TG_SET_DATA 0x8e
124 #define PN533_CMD_RESPONSE(cmd) (cmd + 1)
126 /* PN533 Return codes */
127 #define PN533_CMD_RET_MASK 0x3F
128 #define PN533_CMD_MI_MASK 0x40
129 #define PN533_CMD_RET_SUCCESS 0x00
131 /* PN533 status codes */
132 #define PN533_STATUS_TARGET_RELEASED 0x29
136 typedef int (*pn533_cmd_complete_t
) (struct pn533
*dev
, void *arg
,
137 u8
*params
, int params_len
);
139 /* structs for pn533 commands */
141 /* PN533_CMD_GET_FIRMWARE_VERSION */
142 struct pn533_fw_version
{
149 /* PN533_CMD_RF_CONFIGURATION */
150 #define PN533_CFGITEM_TIMING 0x02
151 #define PN533_CFGITEM_MAX_RETRIES 0x05
152 #define PN533_CFGITEM_PASORI 0x82
154 #define PN533_CONFIG_TIMING_102 0xb
155 #define PN533_CONFIG_TIMING_204 0xc
156 #define PN533_CONFIG_TIMING_409 0xd
157 #define PN533_CONFIG_TIMING_819 0xe
159 #define PN533_CONFIG_MAX_RETRIES_NO_RETRY 0x00
160 #define PN533_CONFIG_MAX_RETRIES_ENDLESS 0xFF
162 struct pn533_config_max_retries
{
165 u8 mx_rty_passive_act
;
168 struct pn533_config_timing
{
174 /* PN533_CMD_IN_LIST_PASSIVE_TARGET */
176 /* felica commands opcode */
177 #define PN533_FELICA_OPC_SENSF_REQ 0
178 #define PN533_FELICA_OPC_SENSF_RES 1
179 /* felica SENSF_REQ parameters */
180 #define PN533_FELICA_SENSF_SC_ALL 0xFFFF
181 #define PN533_FELICA_SENSF_RC_NO_SYSTEM_CODE 0
182 #define PN533_FELICA_SENSF_RC_SYSTEM_CODE 1
183 #define PN533_FELICA_SENSF_RC_ADVANCED_PROTOCOL 2
185 /* type B initiator_data values */
186 #define PN533_TYPE_B_AFI_ALL_FAMILIES 0
187 #define PN533_TYPE_B_POLL_METHOD_TIMESLOT 0
188 #define PN533_TYPE_B_POLL_METHOD_PROBABILISTIC 1
190 union pn533_cmd_poll_initdata
{
203 /* Poll modulations */
205 PN533_POLL_MOD_106KBPS_A
,
206 PN533_POLL_MOD_212KBPS_FELICA
,
207 PN533_POLL_MOD_424KBPS_FELICA
,
208 PN533_POLL_MOD_106KBPS_JEWEL
,
209 PN533_POLL_MOD_847KBPS_B
,
212 __PN533_POLL_MOD_AFTER_LAST
,
214 #define PN533_POLL_MOD_MAX (__PN533_POLL_MOD_AFTER_LAST - 1)
216 struct pn533_poll_modulations
{
220 union pn533_cmd_poll_initdata initiator_data
;
225 const struct pn533_poll_modulations poll_mod
[] = {
226 [PN533_POLL_MOD_106KBPS_A
] = {
233 [PN533_POLL_MOD_212KBPS_FELICA
] = {
237 .initiator_data
.felica
= {
238 .opcode
= PN533_FELICA_OPC_SENSF_REQ
,
239 .sc
= PN533_FELICA_SENSF_SC_ALL
,
240 .rc
= PN533_FELICA_SENSF_RC_NO_SYSTEM_CODE
,
246 [PN533_POLL_MOD_424KBPS_FELICA
] = {
250 .initiator_data
.felica
= {
251 .opcode
= PN533_FELICA_OPC_SENSF_REQ
,
252 .sc
= PN533_FELICA_SENSF_SC_ALL
,
253 .rc
= PN533_FELICA_SENSF_RC_NO_SYSTEM_CODE
,
259 [PN533_POLL_MOD_106KBPS_JEWEL
] = {
266 [PN533_POLL_MOD_847KBPS_B
] = {
270 .initiator_data
.type_b
= {
271 .afi
= PN533_TYPE_B_AFI_ALL_FAMILIES
,
273 PN533_TYPE_B_POLL_METHOD_TIMESLOT
,
278 [PN533_LISTEN_MOD
] = {
283 /* PN533_CMD_IN_ATR */
285 struct pn533_cmd_activate_param
{
290 struct pn533_cmd_activate_response
{
302 /* PN533_CMD_IN_JUMP_FOR_DEP */
303 struct pn533_cmd_jump_dep
{
310 struct pn533_cmd_jump_dep_response
{
324 /* PN533_TG_INIT_AS_TARGET */
325 #define PN533_INIT_TARGET_PASSIVE 0x1
326 #define PN533_INIT_TARGET_DEP 0x2
328 #define PN533_INIT_TARGET_RESP_FRAME_MASK 0x3
329 #define PN533_INIT_TARGET_RESP_ACTIVE 0x1
330 #define PN533_INIT_TARGET_RESP_DEP 0x4
332 struct pn533_cmd_init_target
{
341 struct pn533_cmd_init_target_response
{
347 struct usb_device
*udev
;
348 struct usb_interface
*interface
;
349 struct nfc_dev
*nfc_dev
;
353 struct pn533_frame
*out_frame
;
357 struct pn533_frame
*in_frame
;
359 struct sk_buff_head resp_q
;
361 struct workqueue_struct
*wq
;
362 struct work_struct cmd_work
;
363 struct work_struct cmd_complete_work
;
364 struct work_struct poll_work
;
365 struct work_struct mi_work
;
366 struct work_struct tg_work
;
367 struct timer_list listen_timer
;
368 struct pn533_frame
*wq_in_frame
;
372 pn533_cmd_complete_t cmd_complete
;
373 void *cmd_complete_arg
;
374 struct mutex cmd_lock
;
377 struct pn533_poll_modulations
*poll_mod_active
[PN533_POLL_MOD_MAX
+ 1];
381 u32 listen_protocols
;
386 u8 tgt_available_prots
;
392 struct list_head cmd_queue
;
397 struct list_head queue
;
398 struct pn533_frame
*out_frame
;
399 struct pn533_frame
*in_frame
;
401 pn533_cmd_complete_t cmd_complete
;
414 /* The rule: value + checksum = 0 */
415 static inline u8
pn533_checksum(u8 value
)
420 /* The rule: sum(data elements) + checksum = 0 */
421 static u8
pn533_data_checksum(u8
*data
, int datalen
)
426 for (i
= 0; i
< datalen
; i
++)
429 return pn533_checksum(sum
);
433 * pn533_tx_frame_ack - create a ack frame
434 * @frame: The frame to be set as ack
436 * Ack is different type of standard frame. As a standard frame, it has
437 * preamble and start_frame. However the checksum of this frame must fail,
438 * i.e. datalen + datalen_checksum must NOT be zero. When the checksum test
439 * fails and datalen = 0 and datalen_checksum = 0xFF, the frame is a ack.
440 * After datalen_checksum field, the postamble is placed.
442 static void pn533_tx_frame_ack(struct pn533_frame
*frame
)
445 frame
->start_frame
= cpu_to_be16(PN533_SOF
);
447 frame
->datalen_checksum
= 0xFF;
448 /* data[0] is used as postamble */
452 static void pn533_tx_frame_init(struct pn533_frame
*frame
, u8 cmd
)
455 frame
->start_frame
= cpu_to_be16(PN533_SOF
);
456 PN533_FRAME_IDENTIFIER(frame
) = PN533_DIR_OUT
;
457 PN533_FRAME_CMD(frame
) = cmd
;
461 static void pn533_tx_frame_finish(struct pn533_frame
*frame
)
463 frame
->datalen_checksum
= pn533_checksum(frame
->datalen
);
465 PN533_FRAME_CHECKSUM(frame
) =
466 pn533_data_checksum(frame
->data
, frame
->datalen
);
468 PN533_FRAME_POSTAMBLE(frame
) = 0;
471 static bool pn533_rx_frame_is_valid(struct pn533_frame
*frame
)
475 if (frame
->start_frame
!= cpu_to_be16(PN533_SOF
))
478 checksum
= pn533_checksum(frame
->datalen
);
479 if (checksum
!= frame
->datalen_checksum
)
482 checksum
= pn533_data_checksum(frame
->data
, frame
->datalen
);
483 if (checksum
!= PN533_FRAME_CHECKSUM(frame
))
489 static bool pn533_rx_frame_is_ack(struct pn533_frame
*frame
)
491 if (frame
->start_frame
!= cpu_to_be16(PN533_SOF
))
494 if (frame
->datalen
!= 0 || frame
->datalen_checksum
!= 0xFF)
500 static bool pn533_rx_frame_is_cmd_response(struct pn533_frame
*frame
, u8 cmd
)
502 return (PN533_FRAME_CMD(frame
) == PN533_CMD_RESPONSE(cmd
));
506 static void pn533_wq_cmd_complete(struct work_struct
*work
)
508 struct pn533
*dev
= container_of(work
, struct pn533
, cmd_complete_work
);
509 struct pn533_frame
*in_frame
;
512 in_frame
= dev
->wq_in_frame
;
514 if (dev
->wq_in_error
)
515 rc
= dev
->cmd_complete(dev
, dev
->cmd_complete_arg
, NULL
,
518 rc
= dev
->cmd_complete(dev
, dev
->cmd_complete_arg
,
519 PN533_FRAME_CMD_PARAMS_PTR(in_frame
),
520 PN533_FRAME_CMD_PARAMS_LEN(in_frame
));
522 if (rc
!= -EINPROGRESS
)
523 queue_work(dev
->wq
, &dev
->cmd_work
);
526 static void pn533_recv_response(struct urb
*urb
)
528 struct pn533
*dev
= urb
->context
;
529 struct pn533_frame
*in_frame
;
531 dev
->wq_in_frame
= NULL
;
533 switch (urb
->status
) {
540 nfc_dev_dbg(&dev
->interface
->dev
, "Urb shutting down with"
541 " status: %d", urb
->status
);
542 dev
->wq_in_error
= urb
->status
;
545 nfc_dev_err(&dev
->interface
->dev
, "Nonzero urb status received:"
547 dev
->wq_in_error
= urb
->status
;
551 in_frame
= dev
->in_urb
->transfer_buffer
;
553 if (!pn533_rx_frame_is_valid(in_frame
)) {
554 nfc_dev_err(&dev
->interface
->dev
, "Received an invalid frame");
555 dev
->wq_in_error
= -EIO
;
559 if (!pn533_rx_frame_is_cmd_response(in_frame
, dev
->cmd
)) {
560 nfc_dev_err(&dev
->interface
->dev
, "The received frame is not "
561 "response to the last command");
562 dev
->wq_in_error
= -EIO
;
566 nfc_dev_dbg(&dev
->interface
->dev
, "Received a valid frame");
567 dev
->wq_in_error
= 0;
568 dev
->wq_in_frame
= in_frame
;
571 queue_work(dev
->wq
, &dev
->cmd_complete_work
);
574 static int pn533_submit_urb_for_response(struct pn533
*dev
, gfp_t flags
)
576 dev
->in_urb
->complete
= pn533_recv_response
;
578 return usb_submit_urb(dev
->in_urb
, flags
);
581 static void pn533_recv_ack(struct urb
*urb
)
583 struct pn533
*dev
= urb
->context
;
584 struct pn533_frame
*in_frame
;
587 switch (urb
->status
) {
594 nfc_dev_dbg(&dev
->interface
->dev
, "Urb shutting down with"
595 " status: %d", urb
->status
);
596 dev
->wq_in_error
= urb
->status
;
599 nfc_dev_err(&dev
->interface
->dev
, "Nonzero urb status received:"
601 dev
->wq_in_error
= urb
->status
;
605 in_frame
= dev
->in_urb
->transfer_buffer
;
607 if (!pn533_rx_frame_is_ack(in_frame
)) {
608 nfc_dev_err(&dev
->interface
->dev
, "Received an invalid ack");
609 dev
->wq_in_error
= -EIO
;
613 nfc_dev_dbg(&dev
->interface
->dev
, "Received a valid ack");
615 rc
= pn533_submit_urb_for_response(dev
, GFP_ATOMIC
);
617 nfc_dev_err(&dev
->interface
->dev
, "usb_submit_urb failed with"
619 dev
->wq_in_error
= rc
;
626 dev
->wq_in_frame
= NULL
;
627 queue_work(dev
->wq
, &dev
->cmd_complete_work
);
630 static int pn533_submit_urb_for_ack(struct pn533
*dev
, gfp_t flags
)
632 dev
->in_urb
->complete
= pn533_recv_ack
;
634 return usb_submit_urb(dev
->in_urb
, flags
);
637 static int pn533_send_ack(struct pn533
*dev
, gfp_t flags
)
641 nfc_dev_dbg(&dev
->interface
->dev
, "%s", __func__
);
643 pn533_tx_frame_ack(dev
->out_frame
);
645 dev
->out_urb
->transfer_buffer
= dev
->out_frame
;
646 dev
->out_urb
->transfer_buffer_length
= PN533_FRAME_ACK_SIZE
;
647 rc
= usb_submit_urb(dev
->out_urb
, flags
);
652 static int __pn533_send_cmd_frame_async(struct pn533
*dev
,
653 struct pn533_frame
*out_frame
,
654 struct pn533_frame
*in_frame
,
656 pn533_cmd_complete_t cmd_complete
,
657 void *arg
, gfp_t flags
)
661 nfc_dev_dbg(&dev
->interface
->dev
, "Sending command 0x%x",
662 PN533_FRAME_CMD(out_frame
));
664 dev
->cmd
= PN533_FRAME_CMD(out_frame
);
665 dev
->cmd_complete
= cmd_complete
;
666 dev
->cmd_complete_arg
= arg
;
668 dev
->out_urb
->transfer_buffer
= out_frame
;
669 dev
->out_urb
->transfer_buffer_length
=
670 PN533_FRAME_SIZE(out_frame
);
672 dev
->in_urb
->transfer_buffer
= in_frame
;
673 dev
->in_urb
->transfer_buffer_length
= in_frame_len
;
675 rc
= usb_submit_urb(dev
->out_urb
, flags
);
679 rc
= pn533_submit_urb_for_ack(dev
, flags
);
686 usb_unlink_urb(dev
->out_urb
);
690 static void pn533_wq_cmd(struct work_struct
*work
)
692 struct pn533
*dev
= container_of(work
, struct pn533
, cmd_work
);
693 struct pn533_cmd
*cmd
;
695 mutex_lock(&dev
->cmd_lock
);
697 if (list_empty(&dev
->cmd_queue
)) {
698 dev
->cmd_pending
= 0;
699 mutex_unlock(&dev
->cmd_lock
);
703 cmd
= list_first_entry(&dev
->cmd_queue
, struct pn533_cmd
, queue
);
705 list_del(&cmd
->queue
);
707 mutex_unlock(&dev
->cmd_lock
);
709 __pn533_send_cmd_frame_async(dev
, cmd
->out_frame
, cmd
->in_frame
,
710 cmd
->in_frame_len
, cmd
->cmd_complete
,
711 cmd
->arg
, cmd
->flags
);
716 static int pn533_send_cmd_frame_async(struct pn533
*dev
,
717 struct pn533_frame
*out_frame
,
718 struct pn533_frame
*in_frame
,
720 pn533_cmd_complete_t cmd_complete
,
721 void *arg
, gfp_t flags
)
723 struct pn533_cmd
*cmd
;
726 nfc_dev_dbg(&dev
->interface
->dev
, "%s", __func__
);
728 mutex_lock(&dev
->cmd_lock
);
730 if (!dev
->cmd_pending
) {
731 rc
= __pn533_send_cmd_frame_async(dev
, out_frame
, in_frame
,
732 in_frame_len
, cmd_complete
,
735 dev
->cmd_pending
= 1;
740 nfc_dev_dbg(&dev
->interface
->dev
, "%s Queueing command", __func__
);
742 cmd
= kzalloc(sizeof(struct pn533_cmd
), flags
);
748 INIT_LIST_HEAD(&cmd
->queue
);
749 cmd
->out_frame
= out_frame
;
750 cmd
->in_frame
= in_frame
;
751 cmd
->in_frame_len
= in_frame_len
;
752 cmd
->cmd_complete
= cmd_complete
;
756 list_add_tail(&cmd
->queue
, &dev
->cmd_queue
);
759 mutex_unlock(&dev
->cmd_lock
);
764 struct pn533_sync_cmd_response
{
766 struct completion done
;
769 static int pn533_sync_cmd_complete(struct pn533
*dev
, void *_arg
,
770 u8
*params
, int params_len
)
772 struct pn533_sync_cmd_response
*arg
= _arg
;
774 nfc_dev_dbg(&dev
->interface
->dev
, "%s", __func__
);
778 if (params_len
< 0) /* error */
779 arg
->rc
= params_len
;
781 complete(&arg
->done
);
786 static int pn533_send_cmd_frame_sync(struct pn533
*dev
,
787 struct pn533_frame
*out_frame
,
788 struct pn533_frame
*in_frame
,
792 struct pn533_sync_cmd_response arg
;
794 nfc_dev_dbg(&dev
->interface
->dev
, "%s", __func__
);
796 init_completion(&arg
.done
);
798 rc
= pn533_send_cmd_frame_async(dev
, out_frame
, in_frame
, in_frame_len
,
799 pn533_sync_cmd_complete
, &arg
, GFP_KERNEL
);
803 wait_for_completion(&arg
.done
);
808 static void pn533_send_complete(struct urb
*urb
)
810 struct pn533
*dev
= urb
->context
;
812 nfc_dev_dbg(&dev
->interface
->dev
, "%s", __func__
);
814 switch (urb
->status
) {
821 nfc_dev_dbg(&dev
->interface
->dev
, "Urb shutting down with"
822 " status: %d", urb
->status
);
825 nfc_dev_dbg(&dev
->interface
->dev
, "Nonzero urb status received:"
830 struct pn533_target_type_a
{
838 #define PN533_TYPE_A_SENS_RES_NFCID1(x) ((u8)((be16_to_cpu(x) & 0x00C0) >> 6))
839 #define PN533_TYPE_A_SENS_RES_SSD(x) ((u8)((be16_to_cpu(x) & 0x001F) >> 0))
840 #define PN533_TYPE_A_SENS_RES_PLATCONF(x) ((u8)((be16_to_cpu(x) & 0x0F00) >> 8))
842 #define PN533_TYPE_A_SENS_RES_SSD_JEWEL 0x00
843 #define PN533_TYPE_A_SENS_RES_PLATCONF_JEWEL 0x0C
845 #define PN533_TYPE_A_SEL_PROT(x) (((x) & 0x60) >> 5)
846 #define PN533_TYPE_A_SEL_CASCADE(x) (((x) & 0x04) >> 2)
848 #define PN533_TYPE_A_SEL_PROT_MIFARE 0
849 #define PN533_TYPE_A_SEL_PROT_ISO14443 1
850 #define PN533_TYPE_A_SEL_PROT_DEP 2
851 #define PN533_TYPE_A_SEL_PROT_ISO14443_DEP 3
853 static bool pn533_target_type_a_is_valid(struct pn533_target_type_a
*type_a
,
859 if (target_data_len
< sizeof(struct pn533_target_type_a
))
862 /* The lenght check of nfcid[] and ats[] are not being performed because
863 the values are not being used */
865 /* Requirement 4.6.3.3 from NFC Forum Digital Spec */
866 ssd
= PN533_TYPE_A_SENS_RES_SSD(type_a
->sens_res
);
867 platconf
= PN533_TYPE_A_SENS_RES_PLATCONF(type_a
->sens_res
);
869 if ((ssd
== PN533_TYPE_A_SENS_RES_SSD_JEWEL
&&
870 platconf
!= PN533_TYPE_A_SENS_RES_PLATCONF_JEWEL
) ||
871 (ssd
!= PN533_TYPE_A_SENS_RES_SSD_JEWEL
&&
872 platconf
== PN533_TYPE_A_SENS_RES_PLATCONF_JEWEL
))
875 /* Requirements 4.8.2.1, 4.8.2.3, 4.8.2.5 and 4.8.2.7 from NFC Forum */
876 if (PN533_TYPE_A_SEL_CASCADE(type_a
->sel_res
) != 0)
882 static int pn533_target_found_type_a(struct nfc_target
*nfc_tgt
, u8
*tgt_data
,
885 struct pn533_target_type_a
*tgt_type_a
;
887 tgt_type_a
= (struct pn533_target_type_a
*) tgt_data
;
889 if (!pn533_target_type_a_is_valid(tgt_type_a
, tgt_data_len
))
892 switch (PN533_TYPE_A_SEL_PROT(tgt_type_a
->sel_res
)) {
893 case PN533_TYPE_A_SEL_PROT_MIFARE
:
894 nfc_tgt
->supported_protocols
= NFC_PROTO_MIFARE_MASK
;
896 case PN533_TYPE_A_SEL_PROT_ISO14443
:
897 nfc_tgt
->supported_protocols
= NFC_PROTO_ISO14443_MASK
;
899 case PN533_TYPE_A_SEL_PROT_DEP
:
900 nfc_tgt
->supported_protocols
= NFC_PROTO_NFC_DEP_MASK
;
902 case PN533_TYPE_A_SEL_PROT_ISO14443_DEP
:
903 nfc_tgt
->supported_protocols
= NFC_PROTO_ISO14443_MASK
|
904 NFC_PROTO_NFC_DEP_MASK
;
908 nfc_tgt
->sens_res
= be16_to_cpu(tgt_type_a
->sens_res
);
909 nfc_tgt
->sel_res
= tgt_type_a
->sel_res
;
910 nfc_tgt
->nfcid1_len
= tgt_type_a
->nfcid_len
;
911 memcpy(nfc_tgt
->nfcid1
, tgt_type_a
->nfcid_data
, nfc_tgt
->nfcid1_len
);
916 struct pn533_target_felica
{
925 #define PN533_FELICA_SENSF_NFCID2_DEP_B1 0x01
926 #define PN533_FELICA_SENSF_NFCID2_DEP_B2 0xFE
928 static bool pn533_target_felica_is_valid(struct pn533_target_felica
*felica
,
931 if (target_data_len
< sizeof(struct pn533_target_felica
))
934 if (felica
->opcode
!= PN533_FELICA_OPC_SENSF_RES
)
940 static int pn533_target_found_felica(struct nfc_target
*nfc_tgt
, u8
*tgt_data
,
943 struct pn533_target_felica
*tgt_felica
;
945 tgt_felica
= (struct pn533_target_felica
*) tgt_data
;
947 if (!pn533_target_felica_is_valid(tgt_felica
, tgt_data_len
))
950 if (tgt_felica
->nfcid2
[0] == PN533_FELICA_SENSF_NFCID2_DEP_B1
&&
951 tgt_felica
->nfcid2
[1] ==
952 PN533_FELICA_SENSF_NFCID2_DEP_B2
)
953 nfc_tgt
->supported_protocols
= NFC_PROTO_NFC_DEP_MASK
;
955 nfc_tgt
->supported_protocols
= NFC_PROTO_FELICA_MASK
;
957 memcpy(nfc_tgt
->sensf_res
, &tgt_felica
->opcode
, 9);
958 nfc_tgt
->sensf_res_len
= 9;
963 struct pn533_target_jewel
{
968 static bool pn533_target_jewel_is_valid(struct pn533_target_jewel
*jewel
,
974 if (target_data_len
< sizeof(struct pn533_target_jewel
))
977 /* Requirement 4.6.3.3 from NFC Forum Digital Spec */
978 ssd
= PN533_TYPE_A_SENS_RES_SSD(jewel
->sens_res
);
979 platconf
= PN533_TYPE_A_SENS_RES_PLATCONF(jewel
->sens_res
);
981 if ((ssd
== PN533_TYPE_A_SENS_RES_SSD_JEWEL
&&
982 platconf
!= PN533_TYPE_A_SENS_RES_PLATCONF_JEWEL
) ||
983 (ssd
!= PN533_TYPE_A_SENS_RES_SSD_JEWEL
&&
984 platconf
== PN533_TYPE_A_SENS_RES_PLATCONF_JEWEL
))
990 static int pn533_target_found_jewel(struct nfc_target
*nfc_tgt
, u8
*tgt_data
,
993 struct pn533_target_jewel
*tgt_jewel
;
995 tgt_jewel
= (struct pn533_target_jewel
*) tgt_data
;
997 if (!pn533_target_jewel_is_valid(tgt_jewel
, tgt_data_len
))
1000 nfc_tgt
->supported_protocols
= NFC_PROTO_JEWEL_MASK
;
1001 nfc_tgt
->sens_res
= be16_to_cpu(tgt_jewel
->sens_res
);
1002 nfc_tgt
->nfcid1_len
= 4;
1003 memcpy(nfc_tgt
->nfcid1
, tgt_jewel
->jewelid
, nfc_tgt
->nfcid1_len
);
1008 struct pn533_type_b_prot_info
{
1014 #define PN533_TYPE_B_PROT_FCSI(x) (((x) & 0xF0) >> 4)
1015 #define PN533_TYPE_B_PROT_TYPE(x) (((x) & 0x0F) >> 0)
1016 #define PN533_TYPE_B_PROT_TYPE_RFU_MASK 0x8
1018 struct pn533_type_b_sens_res
{
1022 struct pn533_type_b_prot_info prot_info
;
1025 #define PN533_TYPE_B_OPC_SENSB_RES 0x50
1027 struct pn533_target_type_b
{
1028 struct pn533_type_b_sens_res sensb_res
;
1033 static bool pn533_target_type_b_is_valid(struct pn533_target_type_b
*type_b
,
1034 int target_data_len
)
1036 if (target_data_len
< sizeof(struct pn533_target_type_b
))
1039 if (type_b
->sensb_res
.opcode
!= PN533_TYPE_B_OPC_SENSB_RES
)
1042 if (PN533_TYPE_B_PROT_TYPE(type_b
->sensb_res
.prot_info
.fsci_type
) &
1043 PN533_TYPE_B_PROT_TYPE_RFU_MASK
)
1049 static int pn533_target_found_type_b(struct nfc_target
*nfc_tgt
, u8
*tgt_data
,
1052 struct pn533_target_type_b
*tgt_type_b
;
1054 tgt_type_b
= (struct pn533_target_type_b
*) tgt_data
;
1056 if (!pn533_target_type_b_is_valid(tgt_type_b
, tgt_data_len
))
1059 nfc_tgt
->supported_protocols
= NFC_PROTO_ISO14443_B_MASK
;
1064 struct pn533_poll_response
{
1070 static int pn533_target_found(struct pn533
*dev
,
1071 struct pn533_poll_response
*resp
, int resp_len
)
1073 int target_data_len
;
1074 struct nfc_target nfc_tgt
;
1077 nfc_dev_dbg(&dev
->interface
->dev
, "%s - modulation=%d", __func__
,
1078 dev
->poll_mod_curr
);
1083 memset(&nfc_tgt
, 0, sizeof(struct nfc_target
));
1085 target_data_len
= resp_len
- sizeof(struct pn533_poll_response
);
1087 switch (dev
->poll_mod_curr
) {
1088 case PN533_POLL_MOD_106KBPS_A
:
1089 rc
= pn533_target_found_type_a(&nfc_tgt
, resp
->target_data
,
1092 case PN533_POLL_MOD_212KBPS_FELICA
:
1093 case PN533_POLL_MOD_424KBPS_FELICA
:
1094 rc
= pn533_target_found_felica(&nfc_tgt
, resp
->target_data
,
1097 case PN533_POLL_MOD_106KBPS_JEWEL
:
1098 rc
= pn533_target_found_jewel(&nfc_tgt
, resp
->target_data
,
1101 case PN533_POLL_MOD_847KBPS_B
:
1102 rc
= pn533_target_found_type_b(&nfc_tgt
, resp
->target_data
,
1106 nfc_dev_err(&dev
->interface
->dev
, "Unknown current poll"
1114 if (!(nfc_tgt
.supported_protocols
& dev
->poll_protocols
)) {
1115 nfc_dev_dbg(&dev
->interface
->dev
, "The target found does not"
1116 " have the desired protocol");
1120 nfc_dev_dbg(&dev
->interface
->dev
, "Target found - supported protocols: "
1121 "0x%x", nfc_tgt
.supported_protocols
);
1123 dev
->tgt_available_prots
= nfc_tgt
.supported_protocols
;
1125 nfc_targets_found(dev
->nfc_dev
, &nfc_tgt
, 1);
1130 static inline void pn533_poll_next_mod(struct pn533
*dev
)
1132 dev
->poll_mod_curr
= (dev
->poll_mod_curr
+ 1) % dev
->poll_mod_count
;
1135 static void pn533_poll_reset_mod_list(struct pn533
*dev
)
1137 dev
->poll_mod_count
= 0;
1140 static void pn533_poll_add_mod(struct pn533
*dev
, u8 mod_index
)
1142 dev
->poll_mod_active
[dev
->poll_mod_count
] =
1143 (struct pn533_poll_modulations
*) &poll_mod
[mod_index
];
1144 dev
->poll_mod_count
++;
1147 static void pn533_poll_create_mod_list(struct pn533
*dev
,
1148 u32 im_protocols
, u32 tm_protocols
)
1150 pn533_poll_reset_mod_list(dev
);
1152 if (im_protocols
& NFC_PROTO_MIFARE_MASK
1153 || im_protocols
& NFC_PROTO_ISO14443_MASK
1154 || im_protocols
& NFC_PROTO_NFC_DEP_MASK
)
1155 pn533_poll_add_mod(dev
, PN533_POLL_MOD_106KBPS_A
);
1157 if (im_protocols
& NFC_PROTO_FELICA_MASK
1158 || im_protocols
& NFC_PROTO_NFC_DEP_MASK
) {
1159 pn533_poll_add_mod(dev
, PN533_POLL_MOD_212KBPS_FELICA
);
1160 pn533_poll_add_mod(dev
, PN533_POLL_MOD_424KBPS_FELICA
);
1163 if (im_protocols
& NFC_PROTO_JEWEL_MASK
)
1164 pn533_poll_add_mod(dev
, PN533_POLL_MOD_106KBPS_JEWEL
);
1166 if (im_protocols
& NFC_PROTO_ISO14443_B_MASK
)
1167 pn533_poll_add_mod(dev
, PN533_POLL_MOD_847KBPS_B
);
1170 pn533_poll_add_mod(dev
, PN533_LISTEN_MOD
);
1173 static int pn533_start_poll_complete(struct pn533
*dev
, u8
*params
, int params_len
)
1175 struct pn533_poll_response
*resp
;
1178 nfc_dev_dbg(&dev
->interface
->dev
, "%s", __func__
);
1180 resp
= (struct pn533_poll_response
*) params
;
1182 rc
= pn533_target_found(dev
, resp
, params_len
);
1184 /* We must stop the poll after a valid target found */
1186 pn533_poll_reset_mod_list(dev
);
1194 static int pn533_init_target_frame(struct pn533_frame
*frame
,
1195 u8
*gb
, size_t gb_len
)
1197 struct pn533_cmd_init_target
*cmd
;
1199 u8 felica_params
[18] = {0x1, 0xfe, /* DEP */
1200 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, /* random */
1201 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0,
1202 0xff, 0xff}; /* System code */
1203 u8 mifare_params
[6] = {0x1, 0x1, /* SENS_RES */
1205 0x40}; /* SEL_RES for DEP */
1207 cmd_len
= sizeof(struct pn533_cmd_init_target
) + gb_len
+ 1;
1208 cmd
= kzalloc(cmd_len
, GFP_KERNEL
);
1212 pn533_tx_frame_init(frame
, PN533_CMD_TG_INIT_AS_TARGET
);
1214 /* DEP support only */
1215 cmd
->mode
|= PN533_INIT_TARGET_DEP
;
1218 memcpy(cmd
->felica
, felica_params
, 18);
1219 get_random_bytes(cmd
->felica
+ 2, 6);
1222 memset(cmd
->nfcid3
, 0, 10);
1223 memcpy(cmd
->nfcid3
, cmd
->felica
, 8);
1226 memcpy(cmd
->mifare
, mifare_params
, 6);
1229 cmd
->gb_len
= gb_len
;
1230 memcpy(cmd
->gb
, gb
, gb_len
);
1233 cmd
->gb
[gb_len
] = 0;
1235 memcpy(PN533_FRAME_CMD_PARAMS_PTR(frame
), cmd
, cmd_len
);
1237 frame
->datalen
+= cmd_len
;
1239 pn533_tx_frame_finish(frame
);
1246 #define PN533_CMD_DATAEXCH_HEAD_LEN (sizeof(struct pn533_frame) + 3)
1247 #define PN533_CMD_DATAEXCH_DATA_MAXLEN 262
1248 static int pn533_tm_get_data_complete(struct pn533
*dev
, void *arg
,
1249 u8
*params
, int params_len
)
1251 struct sk_buff
*skb_resp
= arg
;
1252 struct pn533_frame
*in_frame
= (struct pn533_frame
*) skb_resp
->data
;
1254 nfc_dev_dbg(&dev
->interface
->dev
, "%s", __func__
);
1256 if (params_len
< 0) {
1257 nfc_dev_err(&dev
->interface
->dev
,
1258 "Error %d when starting as a target",
1264 if (params_len
> 0 && params
[0] != 0) {
1265 nfc_tm_deactivated(dev
->nfc_dev
);
1269 kfree_skb(skb_resp
);
1273 skb_put(skb_resp
, PN533_FRAME_SIZE(in_frame
));
1274 skb_pull(skb_resp
, PN533_CMD_DATAEXCH_HEAD_LEN
);
1275 skb_trim(skb_resp
, skb_resp
->len
- PN533_FRAME_TAIL_SIZE
);
1277 return nfc_tm_data_received(dev
->nfc_dev
, skb_resp
);
1280 static void pn533_wq_tg_get_data(struct work_struct
*work
)
1282 struct pn533
*dev
= container_of(work
, struct pn533
, tg_work
);
1283 struct pn533_frame
*in_frame
;
1284 struct sk_buff
*skb_resp
;
1285 size_t skb_resp_len
;
1287 nfc_dev_dbg(&dev
->interface
->dev
, "%s", __func__
);
1289 skb_resp_len
= PN533_CMD_DATAEXCH_HEAD_LEN
+
1290 PN533_CMD_DATAEXCH_DATA_MAXLEN
+
1291 PN533_FRAME_TAIL_SIZE
;
1293 skb_resp
= nfc_alloc_recv_skb(skb_resp_len
, GFP_KERNEL
);
1297 in_frame
= (struct pn533_frame
*)skb_resp
->data
;
1299 pn533_tx_frame_init(dev
->out_frame
, PN533_CMD_TG_GET_DATA
);
1300 pn533_tx_frame_finish(dev
->out_frame
);
1302 pn533_send_cmd_frame_async(dev
, dev
->out_frame
, in_frame
,
1304 pn533_tm_get_data_complete
,
1305 skb_resp
, GFP_KERNEL
);
1310 #define ATR_REQ_GB_OFFSET 17
1311 static int pn533_init_target_complete(struct pn533
*dev
, u8
*params
, int params_len
)
1313 struct pn533_cmd_init_target_response
*resp
;
1314 u8 frame
, comm_mode
= NFC_COMM_PASSIVE
, *gb
;
1318 nfc_dev_dbg(&dev
->interface
->dev
, "%s", __func__
);
1320 if (params_len
< 0) {
1321 nfc_dev_err(&dev
->interface
->dev
,
1322 "Error %d when starting as a target",
1328 if (params_len
< ATR_REQ_GB_OFFSET
+ 1)
1331 resp
= (struct pn533_cmd_init_target_response
*) params
;
1333 nfc_dev_dbg(&dev
->interface
->dev
, "Target mode 0x%x param len %d\n",
1334 resp
->mode
, params_len
);
1336 frame
= resp
->mode
& PN533_INIT_TARGET_RESP_FRAME_MASK
;
1337 if (frame
== PN533_INIT_TARGET_RESP_ACTIVE
)
1338 comm_mode
= NFC_COMM_ACTIVE
;
1340 /* Again, only DEP */
1341 if ((resp
->mode
& PN533_INIT_TARGET_RESP_DEP
) == 0)
1344 gb
= resp
->cmd
+ ATR_REQ_GB_OFFSET
;
1345 gb_len
= params_len
- (ATR_REQ_GB_OFFSET
+ 1);
1347 rc
= nfc_tm_activated(dev
->nfc_dev
, NFC_PROTO_NFC_DEP_MASK
,
1348 comm_mode
, gb
, gb_len
);
1350 nfc_dev_err(&dev
->interface
->dev
,
1351 "Error when signaling target activation");
1357 queue_work(dev
->wq
, &dev
->tg_work
);
1362 static void pn533_listen_mode_timer(unsigned long data
)
1364 struct pn533
*dev
= (struct pn533
*) data
;
1366 nfc_dev_dbg(&dev
->interface
->dev
, "Listen mode timeout");
1368 /* An ack will cancel the last issued command (poll) */
1369 pn533_send_ack(dev
, GFP_ATOMIC
);
1371 dev
->cancel_listen
= 1;
1373 pn533_poll_next_mod(dev
);
1375 queue_work(dev
->wq
, &dev
->poll_work
);
1378 static int pn533_poll_complete(struct pn533
*dev
, void *arg
,
1379 u8
*params
, int params_len
)
1381 struct pn533_poll_modulations
*cur_mod
;
1384 nfc_dev_dbg(&dev
->interface
->dev
, "%s", __func__
);
1386 if (params_len
== -ENOENT
) {
1387 if (dev
->poll_mod_count
!= 0)
1390 nfc_dev_err(&dev
->interface
->dev
,
1391 "Polling operation has been stopped");
1396 if (params_len
< 0) {
1397 nfc_dev_err(&dev
->interface
->dev
,
1398 "Error %d when running poll", params_len
);
1403 cur_mod
= dev
->poll_mod_active
[dev
->poll_mod_curr
];
1405 if (cur_mod
->len
== 0) {
1406 del_timer(&dev
->listen_timer
);
1408 return pn533_init_target_complete(dev
, params
, params_len
);
1410 rc
= pn533_start_poll_complete(dev
, params
, params_len
);
1415 pn533_poll_next_mod(dev
);
1417 queue_work(dev
->wq
, &dev
->poll_work
);
1422 pn533_poll_reset_mod_list(dev
);
1423 dev
->poll_protocols
= 0;
1427 static void pn533_build_poll_frame(struct pn533
*dev
,
1428 struct pn533_frame
*frame
,
1429 struct pn533_poll_modulations
*mod
)
1431 nfc_dev_dbg(&dev
->interface
->dev
, "mod len %d\n", mod
->len
);
1433 if (mod
->len
== 0) {
1435 pn533_init_target_frame(frame
, dev
->gb
, dev
->gb_len
);
1438 pn533_tx_frame_init(frame
, PN533_CMD_IN_LIST_PASSIVE_TARGET
);
1440 memcpy(PN533_FRAME_CMD_PARAMS_PTR(frame
), &mod
->data
, mod
->len
);
1441 frame
->datalen
+= mod
->len
;
1443 pn533_tx_frame_finish(frame
);
1447 static int pn533_send_poll_frame(struct pn533
*dev
)
1449 struct pn533_poll_modulations
*cur_mod
;
1452 cur_mod
= dev
->poll_mod_active
[dev
->poll_mod_curr
];
1454 pn533_build_poll_frame(dev
, dev
->out_frame
, cur_mod
);
1456 rc
= pn533_send_cmd_frame_async(dev
, dev
->out_frame
, dev
->in_frame
,
1457 dev
->in_maxlen
, pn533_poll_complete
,
1460 nfc_dev_err(&dev
->interface
->dev
, "Polling loop error %d", rc
);
1465 static void pn533_wq_poll(struct work_struct
*work
)
1467 struct pn533
*dev
= container_of(work
, struct pn533
, poll_work
);
1468 struct pn533_poll_modulations
*cur_mod
;
1471 cur_mod
= dev
->poll_mod_active
[dev
->poll_mod_curr
];
1473 nfc_dev_dbg(&dev
->interface
->dev
,
1474 "%s cancel_listen %d modulation len %d",
1475 __func__
, dev
->cancel_listen
, cur_mod
->len
);
1477 if (dev
->cancel_listen
== 1) {
1478 dev
->cancel_listen
= 0;
1479 usb_kill_urb(dev
->in_urb
);
1482 rc
= pn533_send_poll_frame(dev
);
1486 if (cur_mod
->len
== 0 && dev
->poll_mod_count
> 1)
1487 mod_timer(&dev
->listen_timer
, jiffies
+ PN533_LISTEN_TIME
* HZ
);
1492 static int pn533_start_poll(struct nfc_dev
*nfc_dev
,
1493 u32 im_protocols
, u32 tm_protocols
)
1495 struct pn533
*dev
= nfc_get_drvdata(nfc_dev
);
1497 nfc_dev_dbg(&dev
->interface
->dev
,
1498 "%s: im protocols 0x%x tm protocols 0x%x",
1499 __func__
, im_protocols
, tm_protocols
);
1501 if (dev
->tgt_active_prot
) {
1502 nfc_dev_err(&dev
->interface
->dev
,
1503 "Cannot poll with a target already activated");
1507 if (dev
->tgt_mode
) {
1508 nfc_dev_err(&dev
->interface
->dev
,
1509 "Cannot poll while already being activated");
1514 dev
->gb
= nfc_get_local_general_bytes(nfc_dev
, &dev
->gb_len
);
1515 if (dev
->gb
== NULL
)
1519 dev
->poll_mod_curr
= 0;
1520 pn533_poll_create_mod_list(dev
, im_protocols
, tm_protocols
);
1521 dev
->poll_protocols
= im_protocols
;
1522 dev
->listen_protocols
= tm_protocols
;
1524 return pn533_send_poll_frame(dev
);
1527 static void pn533_stop_poll(struct nfc_dev
*nfc_dev
)
1529 struct pn533
*dev
= nfc_get_drvdata(nfc_dev
);
1531 nfc_dev_dbg(&dev
->interface
->dev
, "%s", __func__
);
1533 del_timer(&dev
->listen_timer
);
1535 if (!dev
->poll_mod_count
) {
1536 nfc_dev_dbg(&dev
->interface
->dev
, "Polling operation was not"
1541 /* An ack will cancel the last issued command (poll) */
1542 pn533_send_ack(dev
, GFP_KERNEL
);
1544 /* prevent pn533_start_poll_complete to issue a new poll meanwhile */
1545 usb_kill_urb(dev
->in_urb
);
1547 pn533_poll_reset_mod_list(dev
);
1550 static int pn533_activate_target_nfcdep(struct pn533
*dev
)
1552 struct pn533_cmd_activate_param param
;
1553 struct pn533_cmd_activate_response
*resp
;
1557 nfc_dev_dbg(&dev
->interface
->dev
, "%s", __func__
);
1559 pn533_tx_frame_init(dev
->out_frame
, PN533_CMD_IN_ATR
);
1563 memcpy(PN533_FRAME_CMD_PARAMS_PTR(dev
->out_frame
), ¶m
,
1564 sizeof(struct pn533_cmd_activate_param
));
1565 dev
->out_frame
->datalen
+= sizeof(struct pn533_cmd_activate_param
);
1567 pn533_tx_frame_finish(dev
->out_frame
);
1569 rc
= pn533_send_cmd_frame_sync(dev
, dev
->out_frame
, dev
->in_frame
,
1574 resp
= (struct pn533_cmd_activate_response
*)
1575 PN533_FRAME_CMD_PARAMS_PTR(dev
->in_frame
);
1576 rc
= resp
->status
& PN533_CMD_RET_MASK
;
1577 if (rc
!= PN533_CMD_RET_SUCCESS
)
1580 /* ATR_RES general bytes are located at offset 16 */
1581 gt_len
= PN533_FRAME_CMD_PARAMS_LEN(dev
->in_frame
) - 16;
1582 rc
= nfc_set_remote_general_bytes(dev
->nfc_dev
, resp
->gt
, gt_len
);
1587 static int pn533_activate_target(struct nfc_dev
*nfc_dev
,
1588 struct nfc_target
*target
, u32 protocol
)
1590 struct pn533
*dev
= nfc_get_drvdata(nfc_dev
);
1593 nfc_dev_dbg(&dev
->interface
->dev
, "%s - protocol=%u", __func__
,
1596 if (dev
->poll_mod_count
) {
1597 nfc_dev_err(&dev
->interface
->dev
, "Cannot activate while"
1602 if (dev
->tgt_active_prot
) {
1603 nfc_dev_err(&dev
->interface
->dev
, "There is already an active"
1608 if (!dev
->tgt_available_prots
) {
1609 nfc_dev_err(&dev
->interface
->dev
, "There is no available target"
1614 if (!(dev
->tgt_available_prots
& (1 << protocol
))) {
1615 nfc_dev_err(&dev
->interface
->dev
, "The target does not support"
1616 " the requested protocol %u", protocol
);
1620 if (protocol
== NFC_PROTO_NFC_DEP
) {
1621 rc
= pn533_activate_target_nfcdep(dev
);
1623 nfc_dev_err(&dev
->interface
->dev
, "Error %d when"
1624 " activating target with"
1625 " NFC_DEP protocol", rc
);
1630 dev
->tgt_active_prot
= protocol
;
1631 dev
->tgt_available_prots
= 0;
1636 static void pn533_deactivate_target(struct nfc_dev
*nfc_dev
,
1637 struct nfc_target
*target
)
1639 struct pn533
*dev
= nfc_get_drvdata(nfc_dev
);
1644 nfc_dev_dbg(&dev
->interface
->dev
, "%s", __func__
);
1646 if (!dev
->tgt_active_prot
) {
1647 nfc_dev_err(&dev
->interface
->dev
, "There is no active target");
1651 dev
->tgt_active_prot
= 0;
1653 skb_queue_purge(&dev
->resp_q
);
1655 pn533_tx_frame_init(dev
->out_frame
, PN533_CMD_IN_RELEASE
);
1658 memcpy(PN533_FRAME_CMD_PARAMS_PTR(dev
->out_frame
), &tg
, sizeof(u8
));
1659 dev
->out_frame
->datalen
+= sizeof(u8
);
1661 pn533_tx_frame_finish(dev
->out_frame
);
1663 rc
= pn533_send_cmd_frame_sync(dev
, dev
->out_frame
, dev
->in_frame
,
1666 nfc_dev_err(&dev
->interface
->dev
, "Error when sending release"
1667 " command to the controller");
1671 status
= PN533_FRAME_CMD_PARAMS_PTR(dev
->in_frame
)[0];
1672 rc
= status
& PN533_CMD_RET_MASK
;
1673 if (rc
!= PN533_CMD_RET_SUCCESS
)
1674 nfc_dev_err(&dev
->interface
->dev
, "Error 0x%x when releasing"
1681 static int pn533_in_dep_link_up_complete(struct pn533
*dev
, void *arg
,
1682 u8
*params
, int params_len
)
1684 struct pn533_cmd_jump_dep_response
*resp
;
1685 struct nfc_target nfc_target
;
1688 struct pn533_cmd_jump_dep
*cmd
= (struct pn533_cmd_jump_dep
*)arg
;
1689 u8 active
= cmd
->active
;
1693 if (params_len
== -ENOENT
) {
1694 nfc_dev_dbg(&dev
->interface
->dev
, "");
1698 if (params_len
< 0) {
1699 nfc_dev_err(&dev
->interface
->dev
,
1700 "Error %d when bringing DEP link up",
1705 if (dev
->tgt_available_prots
&&
1706 !(dev
->tgt_available_prots
& (1 << NFC_PROTO_NFC_DEP
))) {
1707 nfc_dev_err(&dev
->interface
->dev
,
1708 "The target does not support DEP");
1712 resp
= (struct pn533_cmd_jump_dep_response
*) params
;
1713 rc
= resp
->status
& PN533_CMD_RET_MASK
;
1714 if (rc
!= PN533_CMD_RET_SUCCESS
) {
1715 nfc_dev_err(&dev
->interface
->dev
,
1716 "Bringing DEP link up failed %d", rc
);
1720 if (!dev
->tgt_available_prots
) {
1721 nfc_dev_dbg(&dev
->interface
->dev
, "Creating new target");
1723 nfc_target
.supported_protocols
= NFC_PROTO_NFC_DEP_MASK
;
1724 nfc_target
.nfcid1_len
= 10;
1725 memcpy(nfc_target
.nfcid1
, resp
->nfcid3t
, nfc_target
.nfcid1_len
);
1726 rc
= nfc_targets_found(dev
->nfc_dev
, &nfc_target
, 1);
1730 dev
->tgt_available_prots
= 0;
1733 dev
->tgt_active_prot
= NFC_PROTO_NFC_DEP
;
1735 /* ATR_RES general bytes are located at offset 17 */
1736 target_gt_len
= PN533_FRAME_CMD_PARAMS_LEN(dev
->in_frame
) - 17;
1737 rc
= nfc_set_remote_general_bytes(dev
->nfc_dev
,
1738 resp
->gt
, target_gt_len
);
1740 rc
= nfc_dep_link_is_up(dev
->nfc_dev
,
1741 dev
->nfc_dev
->targets
[0].idx
,
1742 !active
, NFC_RF_INITIATOR
);
1747 static int pn533_mod_to_baud(struct pn533
*dev
)
1749 switch (dev
->poll_mod_curr
) {
1750 case PN533_POLL_MOD_106KBPS_A
:
1752 case PN533_POLL_MOD_212KBPS_FELICA
:
1754 case PN533_POLL_MOD_424KBPS_FELICA
:
1761 #define PASSIVE_DATA_LEN 5
1762 static int pn533_dep_link_up(struct nfc_dev
*nfc_dev
, struct nfc_target
*target
,
1763 u8 comm_mode
, u8
* gb
, size_t gb_len
)
1765 struct pn533
*dev
= nfc_get_drvdata(nfc_dev
);
1766 struct pn533_cmd_jump_dep
*cmd
;
1767 u8 cmd_len
, *data_ptr
;
1768 u8 passive_data
[PASSIVE_DATA_LEN
] = {0x00, 0xff, 0xff, 0x00, 0x3};
1771 nfc_dev_dbg(&dev
->interface
->dev
, "%s", __func__
);
1773 if (dev
->poll_mod_count
) {
1774 nfc_dev_err(&dev
->interface
->dev
,
1775 "Cannot bring the DEP link up while polling");
1779 if (dev
->tgt_active_prot
) {
1780 nfc_dev_err(&dev
->interface
->dev
,
1781 "There is already an active target");
1785 baud
= pn533_mod_to_baud(dev
);
1787 nfc_dev_err(&dev
->interface
->dev
,
1788 "Invalid curr modulation %d", dev
->poll_mod_curr
);
1792 cmd_len
= sizeof(struct pn533_cmd_jump_dep
) + gb_len
;
1793 if (comm_mode
== NFC_COMM_PASSIVE
)
1794 cmd_len
+= PASSIVE_DATA_LEN
;
1796 cmd
= kzalloc(cmd_len
, GFP_KERNEL
);
1800 pn533_tx_frame_init(dev
->out_frame
, PN533_CMD_IN_JUMP_FOR_DEP
);
1802 cmd
->active
= !comm_mode
;
1805 data_ptr
= cmd
->data
;
1806 if (comm_mode
== NFC_COMM_PASSIVE
&& cmd
->baud
> 0) {
1807 memcpy(data_ptr
, passive_data
, PASSIVE_DATA_LEN
);
1809 data_ptr
+= PASSIVE_DATA_LEN
;
1812 if (gb
!= NULL
&& gb_len
> 0) {
1813 cmd
->next
|= 4; /* We have some Gi */
1814 memcpy(data_ptr
, gb
, gb_len
);
1819 memcpy(PN533_FRAME_CMD_PARAMS_PTR(dev
->out_frame
), cmd
, cmd_len
);
1820 dev
->out_frame
->datalen
+= cmd_len
;
1822 pn533_tx_frame_finish(dev
->out_frame
);
1824 rc
= pn533_send_cmd_frame_async(dev
, dev
->out_frame
, dev
->in_frame
,
1825 dev
->in_maxlen
, pn533_in_dep_link_up_complete
,
1833 static int pn533_dep_link_down(struct nfc_dev
*nfc_dev
)
1835 struct pn533
*dev
= nfc_get_drvdata(nfc_dev
);
1837 pn533_poll_reset_mod_list(dev
);
1839 if (dev
->tgt_mode
|| dev
->tgt_active_prot
) {
1840 pn533_send_ack(dev
, GFP_KERNEL
);
1841 usb_kill_urb(dev
->in_urb
);
1844 dev
->tgt_active_prot
= 0;
1847 skb_queue_purge(&dev
->resp_q
);
1852 static int pn533_build_tx_frame(struct pn533
*dev
, struct sk_buff
*skb
,
1855 int payload_len
= skb
->len
;
1856 struct pn533_frame
*out_frame
;
1859 nfc_dev_dbg(&dev
->interface
->dev
, "%s - Sending %d bytes", __func__
,
1862 if (payload_len
> PN533_CMD_DATAEXCH_DATA_MAXLEN
) {
1863 /* TODO: Implement support to multi-part data exchange */
1864 nfc_dev_err(&dev
->interface
->dev
, "Data length greater than the"
1866 PN533_CMD_DATAEXCH_DATA_MAXLEN
);
1870 if (target
== true) {
1871 switch (dev
->device_type
) {
1872 case PN533_DEVICE_PASORI
:
1873 if (dev
->tgt_active_prot
== NFC_PROTO_FELICA
) {
1874 skb_push(skb
, PN533_CMD_DATAEXCH_HEAD_LEN
- 1);
1875 out_frame
= (struct pn533_frame
*) skb
->data
;
1876 pn533_tx_frame_init(out_frame
,
1877 PN533_CMD_IN_COMM_THRU
);
1883 skb_push(skb
, PN533_CMD_DATAEXCH_HEAD_LEN
);
1884 out_frame
= (struct pn533_frame
*) skb
->data
;
1885 pn533_tx_frame_init(out_frame
,
1886 PN533_CMD_IN_DATA_EXCHANGE
);
1888 memcpy(PN533_FRAME_CMD_PARAMS_PTR(out_frame
),
1890 out_frame
->datalen
+= sizeof(u8
);
1896 skb_push(skb
, PN533_CMD_DATAEXCH_HEAD_LEN
- 1);
1897 out_frame
= (struct pn533_frame
*) skb
->data
;
1898 pn533_tx_frame_init(out_frame
, PN533_CMD_TG_SET_DATA
);
1902 /* The data is already in the out_frame, just update the datalen */
1903 out_frame
->datalen
+= payload_len
;
1905 pn533_tx_frame_finish(out_frame
);
1906 skb_put(skb
, PN533_FRAME_TAIL_SIZE
);
1911 struct pn533_data_exchange_arg
{
1912 struct sk_buff
*skb_resp
;
1913 struct sk_buff
*skb_out
;
1914 data_exchange_cb_t cb
;
1918 static struct sk_buff
*pn533_build_response(struct pn533
*dev
)
1920 struct sk_buff
*skb
, *tmp
, *t
;
1921 unsigned int skb_len
= 0, tmp_len
= 0;
1923 nfc_dev_dbg(&dev
->interface
->dev
, "%s\n", __func__
);
1925 if (skb_queue_empty(&dev
->resp_q
))
1928 if (skb_queue_len(&dev
->resp_q
) == 1) {
1929 skb
= skb_dequeue(&dev
->resp_q
);
1933 skb_queue_walk_safe(&dev
->resp_q
, tmp
, t
)
1934 skb_len
+= tmp
->len
;
1936 nfc_dev_dbg(&dev
->interface
->dev
, "%s total length %d\n",
1939 skb
= alloc_skb(skb_len
, GFP_KERNEL
);
1943 skb_put(skb
, skb_len
);
1945 skb_queue_walk_safe(&dev
->resp_q
, tmp
, t
) {
1946 memcpy(skb
->data
+ tmp_len
, tmp
->data
, tmp
->len
);
1947 tmp_len
+= tmp
->len
;
1951 skb_queue_purge(&dev
->resp_q
);
1956 static int pn533_data_exchange_complete(struct pn533
*dev
, void *_arg
,
1957 u8
*params
, int params_len
)
1959 struct pn533_data_exchange_arg
*arg
= _arg
;
1960 struct sk_buff
*skb
= NULL
, *skb_resp
= arg
->skb_resp
;
1961 struct pn533_frame
*in_frame
= (struct pn533_frame
*) skb_resp
->data
;
1966 nfc_dev_dbg(&dev
->interface
->dev
, "%s", __func__
);
1968 dev_kfree_skb(arg
->skb_out
);
1970 if (params_len
< 0) { /* error */
1977 cmd_ret
= status
& PN533_CMD_RET_MASK
;
1978 if (cmd_ret
!= PN533_CMD_RET_SUCCESS
) {
1979 nfc_dev_err(&dev
->interface
->dev
, "PN533 reported error %d when"
1980 " exchanging data", cmd_ret
);
1985 skb_put(skb_resp
, PN533_FRAME_SIZE(in_frame
));
1986 skb_pull(skb_resp
, PN533_CMD_DATAEXCH_HEAD_LEN
);
1987 skb_trim(skb_resp
, skb_resp
->len
- PN533_FRAME_TAIL_SIZE
);
1988 skb_queue_tail(&dev
->resp_q
, skb_resp
);
1990 if (status
& PN533_CMD_MI_MASK
) {
1991 queue_work(dev
->wq
, &dev
->mi_work
);
1992 return -EINPROGRESS
;
1995 skb
= pn533_build_response(dev
);
1999 arg
->cb(arg
->cb_context
, skb
, 0);
2004 skb_queue_purge(&dev
->resp_q
);
2005 dev_kfree_skb(skb_resp
);
2006 arg
->cb(arg
->cb_context
, NULL
, err
);
2011 static int pn533_transceive(struct nfc_dev
*nfc_dev
,
2012 struct nfc_target
*target
, struct sk_buff
*skb
,
2013 data_exchange_cb_t cb
, void *cb_context
)
2015 struct pn533
*dev
= nfc_get_drvdata(nfc_dev
);
2016 struct pn533_frame
*out_frame
, *in_frame
;
2017 struct pn533_data_exchange_arg
*arg
;
2018 struct sk_buff
*skb_resp
;
2022 nfc_dev_dbg(&dev
->interface
->dev
, "%s", __func__
);
2024 if (!dev
->tgt_active_prot
) {
2025 nfc_dev_err(&dev
->interface
->dev
, "Cannot exchange data if"
2026 " there is no active target");
2031 rc
= pn533_build_tx_frame(dev
, skb
, true);
2035 skb_resp_len
= PN533_CMD_DATAEXCH_HEAD_LEN
+
2036 PN533_CMD_DATAEXCH_DATA_MAXLEN
+
2037 PN533_FRAME_TAIL_SIZE
;
2039 skb_resp
= nfc_alloc_recv_skb(skb_resp_len
, GFP_KERNEL
);
2045 in_frame
= (struct pn533_frame
*) skb_resp
->data
;
2046 out_frame
= (struct pn533_frame
*) skb
->data
;
2048 arg
= kmalloc(sizeof(struct pn533_data_exchange_arg
), GFP_KERNEL
);
2054 arg
->skb_resp
= skb_resp
;
2057 arg
->cb_context
= cb_context
;
2059 rc
= pn533_send_cmd_frame_async(dev
, out_frame
, in_frame
, skb_resp_len
,
2060 pn533_data_exchange_complete
, arg
,
2063 nfc_dev_err(&dev
->interface
->dev
, "Error %d when trying to"
2064 " perform data_exchange", rc
);
2073 kfree_skb(skb_resp
);
2079 static int pn533_tm_send_complete(struct pn533
*dev
, void *arg
,
2080 u8
*params
, int params_len
)
2082 struct sk_buff
*skb_out
= arg
;
2084 nfc_dev_dbg(&dev
->interface
->dev
, "%s", __func__
);
2086 dev_kfree_skb(skb_out
);
2088 if (params_len
< 0) {
2089 nfc_dev_err(&dev
->interface
->dev
,
2090 "Error %d when sending data",
2096 if (params_len
> 0 && params
[0] != 0) {
2097 nfc_tm_deactivated(dev
->nfc_dev
);
2104 queue_work(dev
->wq
, &dev
->tg_work
);
2109 static int pn533_tm_send(struct nfc_dev
*nfc_dev
, struct sk_buff
*skb
)
2111 struct pn533
*dev
= nfc_get_drvdata(nfc_dev
);
2112 struct pn533_frame
*out_frame
;
2115 nfc_dev_dbg(&dev
->interface
->dev
, "%s", __func__
);
2117 rc
= pn533_build_tx_frame(dev
, skb
, false);
2121 out_frame
= (struct pn533_frame
*) skb
->data
;
2123 rc
= pn533_send_cmd_frame_async(dev
, out_frame
, dev
->in_frame
,
2124 dev
->in_maxlen
, pn533_tm_send_complete
,
2127 nfc_dev_err(&dev
->interface
->dev
,
2128 "Error %d when trying to send data", rc
);
2140 static void pn533_wq_mi_recv(struct work_struct
*work
)
2142 struct pn533
*dev
= container_of(work
, struct pn533
, mi_work
);
2143 struct sk_buff
*skb_cmd
;
2144 struct pn533_data_exchange_arg
*arg
= dev
->cmd_complete_arg
;
2145 struct pn533_frame
*out_frame
, *in_frame
;
2146 struct sk_buff
*skb_resp
;
2150 nfc_dev_dbg(&dev
->interface
->dev
, "%s", __func__
);
2152 /* This is a zero payload size skb */
2153 skb_cmd
= alloc_skb(PN533_CMD_DATAEXCH_HEAD_LEN
+ PN533_FRAME_TAIL_SIZE
,
2155 if (skb_cmd
== NULL
)
2158 skb_reserve(skb_cmd
, PN533_CMD_DATAEXCH_HEAD_LEN
);
2160 rc
= pn533_build_tx_frame(dev
, skb_cmd
, true);
2164 skb_resp_len
= PN533_CMD_DATAEXCH_HEAD_LEN
+
2165 PN533_CMD_DATAEXCH_DATA_MAXLEN
+
2166 PN533_FRAME_TAIL_SIZE
;
2167 skb_resp
= alloc_skb(skb_resp_len
, GFP_KERNEL
);
2173 in_frame
= (struct pn533_frame
*) skb_resp
->data
;
2174 out_frame
= (struct pn533_frame
*) skb_cmd
->data
;
2176 arg
->skb_resp
= skb_resp
;
2177 arg
->skb_out
= skb_cmd
;
2179 rc
= __pn533_send_cmd_frame_async(dev
, out_frame
, in_frame
,
2181 pn533_data_exchange_complete
,
2182 dev
->cmd_complete_arg
, GFP_KERNEL
);
2186 nfc_dev_err(&dev
->interface
->dev
, "Error %d when trying to"
2187 " perform data_exchange", rc
);
2189 kfree_skb(skb_resp
);
2195 pn533_send_ack(dev
, GFP_KERNEL
);
2199 queue_work(dev
->wq
, &dev
->cmd_work
);
2202 static int pn533_set_configuration(struct pn533
*dev
, u8 cfgitem
, u8
*cfgdata
,
2208 nfc_dev_dbg(&dev
->interface
->dev
, "%s", __func__
);
2210 pn533_tx_frame_init(dev
->out_frame
, PN533_CMD_RF_CONFIGURATION
);
2212 params
= PN533_FRAME_CMD_PARAMS_PTR(dev
->out_frame
);
2213 params
[0] = cfgitem
;
2214 memcpy(¶ms
[1], cfgdata
, cfgdata_len
);
2215 dev
->out_frame
->datalen
+= (1 + cfgdata_len
);
2217 pn533_tx_frame_finish(dev
->out_frame
);
2219 rc
= pn533_send_cmd_frame_sync(dev
, dev
->out_frame
, dev
->in_frame
,
2225 static int pn533_fw_reset(struct pn533
*dev
)
2230 nfc_dev_dbg(&dev
->interface
->dev
, "%s", __func__
);
2232 pn533_tx_frame_init(dev
->out_frame
, 0x18);
2234 params
= PN533_FRAME_CMD_PARAMS_PTR(dev
->out_frame
);
2236 dev
->out_frame
->datalen
+= 1;
2238 pn533_tx_frame_finish(dev
->out_frame
);
2240 rc
= pn533_send_cmd_frame_sync(dev
, dev
->out_frame
, dev
->in_frame
,
2246 static struct nfc_ops pn533_nfc_ops
= {
2249 .dep_link_up
= pn533_dep_link_up
,
2250 .dep_link_down
= pn533_dep_link_down
,
2251 .start_poll
= pn533_start_poll
,
2252 .stop_poll
= pn533_stop_poll
,
2253 .activate_target
= pn533_activate_target
,
2254 .deactivate_target
= pn533_deactivate_target
,
2255 .im_transceive
= pn533_transceive
,
2256 .tm_send
= pn533_tm_send
,
2259 static int pn533_setup(struct pn533
*dev
)
2261 struct pn533_config_max_retries max_retries
;
2262 struct pn533_config_timing timing
;
2263 u8 pasori_cfg
[3] = {0x08, 0x01, 0x08};
2266 switch (dev
->device_type
) {
2267 case PN533_DEVICE_STD
:
2268 max_retries
.mx_rty_atr
= PN533_CONFIG_MAX_RETRIES_ENDLESS
;
2269 max_retries
.mx_rty_psl
= 2;
2270 max_retries
.mx_rty_passive_act
=
2271 PN533_CONFIG_MAX_RETRIES_NO_RETRY
;
2273 timing
.rfu
= PN533_CONFIG_TIMING_102
;
2274 timing
.atr_res_timeout
= PN533_CONFIG_TIMING_204
;
2275 timing
.dep_timeout
= PN533_CONFIG_TIMING_409
;
2279 case PN533_DEVICE_PASORI
:
2280 max_retries
.mx_rty_atr
= 0x2;
2281 max_retries
.mx_rty_psl
= 0x1;
2282 max_retries
.mx_rty_passive_act
=
2283 PN533_CONFIG_MAX_RETRIES_NO_RETRY
;
2285 timing
.rfu
= PN533_CONFIG_TIMING_102
;
2286 timing
.atr_res_timeout
= PN533_CONFIG_TIMING_102
;
2287 timing
.dep_timeout
= PN533_CONFIG_TIMING_204
;
2292 nfc_dev_err(&dev
->interface
->dev
, "Unknown device type %d\n",
2297 rc
= pn533_set_configuration(dev
, PN533_CFGITEM_MAX_RETRIES
,
2298 (u8
*)&max_retries
, sizeof(max_retries
));
2300 nfc_dev_err(&dev
->interface
->dev
,
2301 "Error on setting MAX_RETRIES config");
2306 rc
= pn533_set_configuration(dev
, PN533_CFGITEM_TIMING
,
2307 (u8
*)&timing
, sizeof(timing
));
2309 nfc_dev_err(&dev
->interface
->dev
,
2310 "Error on setting RF timings");
2314 switch (dev
->device_type
) {
2315 case PN533_DEVICE_STD
:
2318 case PN533_DEVICE_PASORI
:
2319 pn533_fw_reset(dev
);
2321 rc
= pn533_set_configuration(dev
, PN533_CFGITEM_PASORI
,
2324 nfc_dev_err(&dev
->interface
->dev
,
2325 "Error while settings PASORI config");
2329 pn533_fw_reset(dev
);
2337 static int pn533_probe(struct usb_interface
*interface
,
2338 const struct usb_device_id
*id
)
2340 struct pn533_fw_version
*fw_ver
;
2342 struct usb_host_interface
*iface_desc
;
2343 struct usb_endpoint_descriptor
*endpoint
;
2344 int in_endpoint
= 0;
2345 int out_endpoint
= 0;
2350 dev
= kzalloc(sizeof(*dev
), GFP_KERNEL
);
2354 dev
->udev
= usb_get_dev(interface_to_usbdev(interface
));
2355 dev
->interface
= interface
;
2356 mutex_init(&dev
->cmd_lock
);
2358 iface_desc
= interface
->cur_altsetting
;
2359 for (i
= 0; i
< iface_desc
->desc
.bNumEndpoints
; ++i
) {
2360 endpoint
= &iface_desc
->endpoint
[i
].desc
;
2362 if (!in_endpoint
&& usb_endpoint_is_bulk_in(endpoint
)) {
2363 dev
->in_maxlen
= le16_to_cpu(endpoint
->wMaxPacketSize
);
2364 in_endpoint
= endpoint
->bEndpointAddress
;
2367 if (!out_endpoint
&& usb_endpoint_is_bulk_out(endpoint
)) {
2369 le16_to_cpu(endpoint
->wMaxPacketSize
);
2370 out_endpoint
= endpoint
->bEndpointAddress
;
2374 if (!in_endpoint
|| !out_endpoint
) {
2375 nfc_dev_err(&interface
->dev
, "Could not find bulk-in or"
2376 " bulk-out endpoint");
2381 dev
->in_frame
= kmalloc(PN533_NORMAL_FRAME_MAX_LEN
, GFP_KERNEL
);
2382 dev
->in_urb
= usb_alloc_urb(0, GFP_KERNEL
);
2383 dev
->out_frame
= kmalloc(PN533_NORMAL_FRAME_MAX_LEN
, GFP_KERNEL
);
2384 dev
->out_urb
= usb_alloc_urb(0, GFP_KERNEL
);
2386 if (!dev
->in_frame
|| !dev
->out_frame
||
2387 !dev
->in_urb
|| !dev
->out_urb
)
2390 usb_fill_bulk_urb(dev
->in_urb
, dev
->udev
,
2391 usb_rcvbulkpipe(dev
->udev
, in_endpoint
),
2392 NULL
, 0, NULL
, dev
);
2393 usb_fill_bulk_urb(dev
->out_urb
, dev
->udev
,
2394 usb_sndbulkpipe(dev
->udev
, out_endpoint
),
2396 pn533_send_complete
, dev
);
2398 INIT_WORK(&dev
->cmd_work
, pn533_wq_cmd
);
2399 INIT_WORK(&dev
->cmd_complete_work
, pn533_wq_cmd_complete
);
2400 INIT_WORK(&dev
->mi_work
, pn533_wq_mi_recv
);
2401 INIT_WORK(&dev
->tg_work
, pn533_wq_tg_get_data
);
2402 INIT_WORK(&dev
->poll_work
, pn533_wq_poll
);
2403 dev
->wq
= alloc_ordered_workqueue("pn533", 0);
2404 if (dev
->wq
== NULL
)
2407 init_timer(&dev
->listen_timer
);
2408 dev
->listen_timer
.data
= (unsigned long) dev
;
2409 dev
->listen_timer
.function
= pn533_listen_mode_timer
;
2411 skb_queue_head_init(&dev
->resp_q
);
2413 INIT_LIST_HEAD(&dev
->cmd_queue
);
2415 usb_set_intfdata(interface
, dev
);
2417 pn533_tx_frame_init(dev
->out_frame
, PN533_CMD_GET_FIRMWARE_VERSION
);
2418 pn533_tx_frame_finish(dev
->out_frame
);
2420 rc
= pn533_send_cmd_frame_sync(dev
, dev
->out_frame
, dev
->in_frame
,
2425 fw_ver
= (struct pn533_fw_version
*)
2426 PN533_FRAME_CMD_PARAMS_PTR(dev
->in_frame
);
2427 nfc_dev_info(&dev
->interface
->dev
, "NXP PN533 firmware ver %d.%d now"
2428 " attached", fw_ver
->ver
, fw_ver
->rev
);
2430 dev
->device_type
= id
->driver_info
;
2431 switch (dev
->device_type
) {
2432 case PN533_DEVICE_STD
:
2433 protocols
= PN533_ALL_PROTOCOLS
;
2436 case PN533_DEVICE_PASORI
:
2437 protocols
= PN533_NO_TYPE_B_PROTOCOLS
;
2441 nfc_dev_err(&dev
->interface
->dev
, "Unknown device type %d\n",
2447 dev
->nfc_dev
= nfc_allocate_device(&pn533_nfc_ops
, protocols
,
2448 PN533_CMD_DATAEXCH_HEAD_LEN
,
2449 PN533_FRAME_TAIL_SIZE
);
2453 nfc_set_parent_dev(dev
->nfc_dev
, &interface
->dev
);
2454 nfc_set_drvdata(dev
->nfc_dev
, dev
);
2456 rc
= nfc_register_device(dev
->nfc_dev
);
2460 rc
= pn533_setup(dev
);
2462 goto unregister_nfc_dev
;
2467 nfc_unregister_device(dev
->nfc_dev
);
2470 nfc_free_device(dev
->nfc_dev
);
2473 destroy_workqueue(dev
->wq
);
2475 kfree(dev
->in_frame
);
2476 usb_free_urb(dev
->in_urb
);
2477 kfree(dev
->out_frame
);
2478 usb_free_urb(dev
->out_urb
);
2483 static void pn533_disconnect(struct usb_interface
*interface
)
2486 struct pn533_cmd
*cmd
, *n
;
2488 dev
= usb_get_intfdata(interface
);
2489 usb_set_intfdata(interface
, NULL
);
2491 nfc_unregister_device(dev
->nfc_dev
);
2492 nfc_free_device(dev
->nfc_dev
);
2494 usb_kill_urb(dev
->in_urb
);
2495 usb_kill_urb(dev
->out_urb
);
2497 destroy_workqueue(dev
->wq
);
2499 skb_queue_purge(&dev
->resp_q
);
2501 del_timer(&dev
->listen_timer
);
2503 list_for_each_entry_safe(cmd
, n
, &dev
->cmd_queue
, queue
) {
2504 list_del(&cmd
->queue
);
2508 kfree(dev
->in_frame
);
2509 usb_free_urb(dev
->in_urb
);
2510 kfree(dev
->out_frame
);
2511 usb_free_urb(dev
->out_urb
);
2514 nfc_dev_info(&interface
->dev
, "NXP PN533 NFC device disconnected");
2517 static struct usb_driver pn533_driver
= {
2519 .probe
= pn533_probe
,
2520 .disconnect
= pn533_disconnect
,
2521 .id_table
= pn533_table
,
2524 module_usb_driver(pn533_driver
);
2526 MODULE_AUTHOR("Lauro Ramos Venancio <lauro.venancio@openbossa.org>,"
2527 " Aloisio Almeida Jr <aloisio.almeida@openbossa.org>");
2528 MODULE_DESCRIPTION("PN533 usb driver ver " VERSION
);
2529 MODULE_VERSION(VERSION
);
2530 MODULE_LICENSE("GPL");