2011-07-02 05:31:37 +07:00
|
|
|
/*
|
|
|
|
* Copyright (C) 2011 Instituto Nokia de Tecnologia
|
2013-04-03 13:02:01 +07:00
|
|
|
* Copyright (C) 2012-2013 Tieto Poland
|
2011-07-02 05:31:37 +07:00
|
|
|
*
|
|
|
|
* This program is free software; you can redistribute it and/or modify
|
|
|
|
* it under the terms of the GNU General Public License as published by
|
|
|
|
* the Free Software Foundation; either version 2 of the License, or
|
|
|
|
* (at your option) any later version.
|
|
|
|
*
|
|
|
|
* This program is distributed in the hope that it will be useful,
|
|
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
|
|
* GNU General Public License for more details.
|
|
|
|
*
|
|
|
|
* You should have received a copy of the GNU General Public License
|
|
|
|
* along with this program; if not, write to the
|
|
|
|
* Free Software Foundation, Inc.,
|
|
|
|
* 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
|
|
|
|
*/
|
|
|
|
|
|
|
|
#include <linux/device.h>
|
|
|
|
#include <linux/kernel.h>
|
|
|
|
#include <linux/module.h>
|
|
|
|
#include <linux/slab.h>
|
|
|
|
#include <linux/usb.h>
|
|
|
|
#include <linux/nfc.h>
|
|
|
|
#include <linux/netdevice.h>
|
2011-09-18 15:19:34 +07:00
|
|
|
#include <net/nfc/nfc.h>
|
2011-07-02 05:31:37 +07:00
|
|
|
|
2013-04-03 13:02:16 +07:00
|
|
|
#define VERSION "0.2"
|
2011-07-02 05:31:37 +07:00
|
|
|
|
|
|
|
#define PN533_VENDOR_ID 0x4CC
|
|
|
|
#define PN533_PRODUCT_ID 0x2533
|
|
|
|
|
|
|
|
#define SCM_VENDOR_ID 0x4E6
|
|
|
|
#define SCL3711_PRODUCT_ID 0x5591
|
|
|
|
|
2012-07-03 01:04:01 +07:00
|
|
|
#define SONY_VENDOR_ID 0x054c
|
|
|
|
#define PASORI_PRODUCT_ID 0x02e1
|
|
|
|
|
NFC: pn533: Add support for ACS ACR122U reader
ACS ACR122U is an USB NFC reader, PC/SC and CCID compilant, based
on NXP PN532 chip.
Internally, it's build of MCU, PN532 and an antenna. MCU makes the
device CCID and PC/SC compilant and provide USB connection.
In this achitecture, a host cannot talk directly to PN532 and must
rely on MCU. Luckily, MCU exposes pseud-APDU through PC/SC Escape
mechanism which let the host to transmit standard PN532 commands
directly to PN532 chip with some limitations.
The frame roughly looks like:
CCID header | APDU header | PN532 header
(pc_to_rdr_escape) | (pseudo apdu Direct Tramsmit) | (len, TFI, cmd, params)
Accordign to limitations, ACR122U does't provide any mechanism to
abort last issued command.
Signed-off-by: Waldemar Rymarkiewicz <waldemar.rymarkiewicz@tieto.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2013-04-03 13:02:13 +07:00
|
|
|
#define ACS_VENDOR_ID 0x072f
|
|
|
|
#define ACR122U_PRODUCT_ID 0x2200
|
|
|
|
|
|
|
|
#define PN533_DEVICE_STD 0x1
|
|
|
|
#define PN533_DEVICE_PASORI 0x2
|
|
|
|
#define PN533_DEVICE_ACR122U 0x3
|
2012-07-03 01:04:01 +07:00
|
|
|
|
2012-07-04 05:14:04 +07:00
|
|
|
#define PN533_ALL_PROTOCOLS (NFC_PROTO_JEWEL_MASK | NFC_PROTO_MIFARE_MASK |\
|
|
|
|
NFC_PROTO_FELICA_MASK | NFC_PROTO_ISO14443_MASK |\
|
|
|
|
NFC_PROTO_NFC_DEP_MASK |\
|
|
|
|
NFC_PROTO_ISO14443_B_MASK)
|
2012-07-03 01:04:01 +07:00
|
|
|
|
|
|
|
#define PN533_NO_TYPE_B_PROTOCOLS (NFC_PROTO_JEWEL_MASK | \
|
|
|
|
NFC_PROTO_MIFARE_MASK | \
|
|
|
|
NFC_PROTO_FELICA_MASK | \
|
2012-07-04 05:14:04 +07:00
|
|
|
NFC_PROTO_ISO14443_MASK | \
|
2012-07-03 01:04:01 +07:00
|
|
|
NFC_PROTO_NFC_DEP_MASK)
|
|
|
|
|
2011-07-02 05:31:37 +07:00
|
|
|
static const struct usb_device_id pn533_table[] = {
|
2012-07-03 01:04:01 +07:00
|
|
|
{ .match_flags = USB_DEVICE_ID_MATCH_DEVICE,
|
|
|
|
.idVendor = PN533_VENDOR_ID,
|
|
|
|
.idProduct = PN533_PRODUCT_ID,
|
|
|
|
.driver_info = PN533_DEVICE_STD,
|
|
|
|
},
|
|
|
|
{ .match_flags = USB_DEVICE_ID_MATCH_DEVICE,
|
|
|
|
.idVendor = SCM_VENDOR_ID,
|
|
|
|
.idProduct = SCL3711_PRODUCT_ID,
|
|
|
|
.driver_info = PN533_DEVICE_STD,
|
|
|
|
},
|
|
|
|
{ .match_flags = USB_DEVICE_ID_MATCH_DEVICE,
|
|
|
|
.idVendor = SONY_VENDOR_ID,
|
|
|
|
.idProduct = PASORI_PRODUCT_ID,
|
|
|
|
.driver_info = PN533_DEVICE_PASORI,
|
|
|
|
},
|
NFC: pn533: Add support for ACS ACR122U reader
ACS ACR122U is an USB NFC reader, PC/SC and CCID compilant, based
on NXP PN532 chip.
Internally, it's build of MCU, PN532 and an antenna. MCU makes the
device CCID and PC/SC compilant and provide USB connection.
In this achitecture, a host cannot talk directly to PN532 and must
rely on MCU. Luckily, MCU exposes pseud-APDU through PC/SC Escape
mechanism which let the host to transmit standard PN532 commands
directly to PN532 chip with some limitations.
The frame roughly looks like:
CCID header | APDU header | PN532 header
(pc_to_rdr_escape) | (pseudo apdu Direct Tramsmit) | (len, TFI, cmd, params)
Accordign to limitations, ACR122U does't provide any mechanism to
abort last issued command.
Signed-off-by: Waldemar Rymarkiewicz <waldemar.rymarkiewicz@tieto.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2013-04-03 13:02:13 +07:00
|
|
|
{ .match_flags = USB_DEVICE_ID_MATCH_DEVICE,
|
|
|
|
.idVendor = ACS_VENDOR_ID,
|
|
|
|
.idProduct = ACR122U_PRODUCT_ID,
|
|
|
|
.driver_info = PN533_DEVICE_ACR122U,
|
|
|
|
},
|
2011-07-02 05:31:37 +07:00
|
|
|
{ }
|
|
|
|
};
|
|
|
|
MODULE_DEVICE_TABLE(usb, pn533_table);
|
|
|
|
|
2012-05-30 22:20:25 +07:00
|
|
|
/* How much time we spend listening for initiators */
|
|
|
|
#define PN533_LISTEN_TIME 2
|
|
|
|
|
2013-04-03 13:01:58 +07:00
|
|
|
/* Standard pn533 frame definitions */
|
|
|
|
#define PN533_STD_FRAME_HEADER_LEN (sizeof(struct pn533_std_frame) \
|
2012-11-26 20:18:32 +07:00
|
|
|
+ 2) /* data[0] TFI, data[1] CC */
|
2013-04-03 13:01:58 +07:00
|
|
|
#define PN533_STD_FRAME_TAIL_LEN 2 /* data[len] DCS, data[len + 1] postamble*/
|
2012-10-11 19:03:58 +07:00
|
|
|
|
2012-11-26 20:18:35 +07:00
|
|
|
/*
|
|
|
|
* Max extended frame payload len, excluding TFI and CC
|
|
|
|
* which are already in PN533_FRAME_HEADER_LEN.
|
|
|
|
*/
|
2013-04-03 13:01:58 +07:00
|
|
|
#define PN533_STD_FRAME_MAX_PAYLOAD_LEN 263
|
2012-11-26 20:18:35 +07:00
|
|
|
|
2013-04-03 13:01:58 +07:00
|
|
|
#define PN533_STD_FRAME_ACK_SIZE 6 /* Preamble (1), SoPC (2), ACK Code (2),
|
2012-12-10 20:42:56 +07:00
|
|
|
Postamble (1) */
|
2013-04-03 13:01:58 +07:00
|
|
|
#define PN533_STD_FRAME_CHECKSUM(f) (f->data[f->datalen])
|
|
|
|
#define PN533_STD_FRAME_POSTAMBLE(f) (f->data[f->datalen + 1])
|
2011-07-02 05:31:37 +07:00
|
|
|
|
|
|
|
/* start of frame */
|
2013-04-03 13:01:58 +07:00
|
|
|
#define PN533_STD_FRAME_SOF 0x00FF
|
2011-07-02 05:31:37 +07:00
|
|
|
|
2013-04-03 13:01:58 +07:00
|
|
|
/* standard frame identifier: in/out/error */
|
|
|
|
#define PN533_STD_FRAME_IDENTIFIER(f) (f->data[0]) /* TFI */
|
|
|
|
#define PN533_STD_FRAME_DIR_OUT 0xD4
|
|
|
|
#define PN533_STD_FRAME_DIR_IN 0xD5
|
2011-07-02 05:31:37 +07:00
|
|
|
|
NFC: pn533: Add support for ACS ACR122U reader
ACS ACR122U is an USB NFC reader, PC/SC and CCID compilant, based
on NXP PN532 chip.
Internally, it's build of MCU, PN532 and an antenna. MCU makes the
device CCID and PC/SC compilant and provide USB connection.
In this achitecture, a host cannot talk directly to PN532 and must
rely on MCU. Luckily, MCU exposes pseud-APDU through PC/SC Escape
mechanism which let the host to transmit standard PN532 commands
directly to PN532 chip with some limitations.
The frame roughly looks like:
CCID header | APDU header | PN532 header
(pc_to_rdr_escape) | (pseudo apdu Direct Tramsmit) | (len, TFI, cmd, params)
Accordign to limitations, ACR122U does't provide any mechanism to
abort last issued command.
Signed-off-by: Waldemar Rymarkiewicz <waldemar.rymarkiewicz@tieto.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2013-04-03 13:02:13 +07:00
|
|
|
/* ACS ACR122 pn533 frame definitions */
|
|
|
|
#define PN533_ACR122_TX_FRAME_HEADER_LEN (sizeof(struct pn533_acr122_tx_frame) \
|
|
|
|
+ 2)
|
|
|
|
#define PN533_ACR122_TX_FRAME_TAIL_LEN 0
|
|
|
|
#define PN533_ACR122_RX_FRAME_HEADER_LEN (sizeof(struct pn533_acr122_rx_frame) \
|
|
|
|
+ 2)
|
|
|
|
#define PN533_ACR122_RX_FRAME_TAIL_LEN 2
|
|
|
|
#define PN533_ACR122_FRAME_MAX_PAYLOAD_LEN PN533_STD_FRAME_MAX_PAYLOAD_LEN
|
|
|
|
|
|
|
|
/* CCID messages types */
|
|
|
|
#define PN533_ACR122_PC_TO_RDR_ICCPOWERON 0x62
|
|
|
|
#define PN533_ACR122_PC_TO_RDR_ESCAPE 0x6B
|
|
|
|
|
|
|
|
#define PN533_ACR122_RDR_TO_PC_ESCAPE 0x83
|
|
|
|
|
2011-07-02 05:31:37 +07:00
|
|
|
/* PN533 Commands */
|
2013-04-03 13:01:58 +07:00
|
|
|
#define PN533_STD_FRAME_CMD(f) (f->data[1])
|
2011-07-02 05:31:37 +07:00
|
|
|
|
|
|
|
#define PN533_CMD_GET_FIRMWARE_VERSION 0x02
|
|
|
|
#define PN533_CMD_RF_CONFIGURATION 0x32
|
|
|
|
#define PN533_CMD_IN_DATA_EXCHANGE 0x40
|
2012-07-03 01:04:01 +07:00
|
|
|
#define PN533_CMD_IN_COMM_THRU 0x42
|
2011-07-02 05:31:37 +07:00
|
|
|
#define PN533_CMD_IN_LIST_PASSIVE_TARGET 0x4A
|
|
|
|
#define PN533_CMD_IN_ATR 0x50
|
|
|
|
#define PN533_CMD_IN_RELEASE 0x52
|
2011-12-14 22:43:11 +07:00
|
|
|
#define PN533_CMD_IN_JUMP_FOR_DEP 0x56
|
2011-07-02 05:31:37 +07:00
|
|
|
|
2012-05-31 04:54:55 +07:00
|
|
|
#define PN533_CMD_TG_INIT_AS_TARGET 0x8c
|
2012-05-31 05:07:51 +07:00
|
|
|
#define PN533_CMD_TG_GET_DATA 0x86
|
2012-05-31 05:09:11 +07:00
|
|
|
#define PN533_CMD_TG_SET_DATA 0x8e
|
2012-11-26 20:18:34 +07:00
|
|
|
#define PN533_CMD_UNDEF 0xff
|
2012-05-31 04:54:55 +07:00
|
|
|
|
2011-07-02 05:31:37 +07:00
|
|
|
#define PN533_CMD_RESPONSE(cmd) (cmd + 1)
|
|
|
|
|
|
|
|
/* PN533 Return codes */
|
|
|
|
#define PN533_CMD_RET_MASK 0x3F
|
|
|
|
#define PN533_CMD_MI_MASK 0x40
|
|
|
|
#define PN533_CMD_RET_SUCCESS 0x00
|
|
|
|
|
|
|
|
struct pn533;
|
|
|
|
|
2012-11-26 20:18:34 +07:00
|
|
|
typedef int (*pn533_send_async_complete_t) (struct pn533 *dev, void *arg,
|
|
|
|
struct sk_buff *resp);
|
|
|
|
|
2011-07-02 05:31:37 +07:00
|
|
|
/* structs for pn533 commands */
|
|
|
|
|
|
|
|
/* PN533_CMD_GET_FIRMWARE_VERSION */
|
|
|
|
struct pn533_fw_version {
|
|
|
|
u8 ic;
|
|
|
|
u8 ver;
|
|
|
|
u8 rev;
|
|
|
|
u8 support;
|
|
|
|
};
|
|
|
|
|
|
|
|
/* PN533_CMD_RF_CONFIGURATION */
|
2013-04-11 16:45:41 +07:00
|
|
|
#define PN533_CFGITEM_RF_FIELD 0x01
|
|
|
|
#define PN533_CFGITEM_TIMING 0x02
|
2011-07-02 05:31:37 +07:00
|
|
|
#define PN533_CFGITEM_MAX_RETRIES 0x05
|
2013-04-11 16:45:41 +07:00
|
|
|
#define PN533_CFGITEM_PASORI 0x82
|
|
|
|
|
|
|
|
#define PN533_CFGITEM_RF_FIELD_ON 0x1
|
|
|
|
#define PN533_CFGITEM_RF_FIELD_OFF 0x0
|
2011-07-02 05:31:37 +07:00
|
|
|
|
2012-05-30 02:34:08 +07:00
|
|
|
#define PN533_CONFIG_TIMING_102 0xb
|
|
|
|
#define PN533_CONFIG_TIMING_204 0xc
|
|
|
|
#define PN533_CONFIG_TIMING_409 0xd
|
|
|
|
#define PN533_CONFIG_TIMING_819 0xe
|
|
|
|
|
2011-07-02 05:31:37 +07:00
|
|
|
#define PN533_CONFIG_MAX_RETRIES_NO_RETRY 0x00
|
|
|
|
#define PN533_CONFIG_MAX_RETRIES_ENDLESS 0xFF
|
|
|
|
|
|
|
|
struct pn533_config_max_retries {
|
|
|
|
u8 mx_rty_atr;
|
|
|
|
u8 mx_rty_psl;
|
|
|
|
u8 mx_rty_passive_act;
|
|
|
|
} __packed;
|
|
|
|
|
2012-05-30 02:34:08 +07:00
|
|
|
struct pn533_config_timing {
|
|
|
|
u8 rfu;
|
|
|
|
u8 atr_res_timeout;
|
|
|
|
u8 dep_timeout;
|
|
|
|
} __packed;
|
|
|
|
|
2011-07-02 05:31:37 +07:00
|
|
|
/* PN533_CMD_IN_LIST_PASSIVE_TARGET */
|
|
|
|
|
|
|
|
/* felica commands opcode */
|
|
|
|
#define PN533_FELICA_OPC_SENSF_REQ 0
|
|
|
|
#define PN533_FELICA_OPC_SENSF_RES 1
|
|
|
|
/* felica SENSF_REQ parameters */
|
|
|
|
#define PN533_FELICA_SENSF_SC_ALL 0xFFFF
|
|
|
|
#define PN533_FELICA_SENSF_RC_NO_SYSTEM_CODE 0
|
|
|
|
#define PN533_FELICA_SENSF_RC_SYSTEM_CODE 1
|
|
|
|
#define PN533_FELICA_SENSF_RC_ADVANCED_PROTOCOL 2
|
|
|
|
|
|
|
|
/* type B initiator_data values */
|
|
|
|
#define PN533_TYPE_B_AFI_ALL_FAMILIES 0
|
|
|
|
#define PN533_TYPE_B_POLL_METHOD_TIMESLOT 0
|
|
|
|
#define PN533_TYPE_B_POLL_METHOD_PROBABILISTIC 1
|
|
|
|
|
|
|
|
union pn533_cmd_poll_initdata {
|
|
|
|
struct {
|
|
|
|
u8 afi;
|
|
|
|
u8 polling_method;
|
|
|
|
} __packed type_b;
|
|
|
|
struct {
|
|
|
|
u8 opcode;
|
|
|
|
__be16 sc;
|
|
|
|
u8 rc;
|
|
|
|
u8 tsn;
|
|
|
|
} __packed felica;
|
|
|
|
};
|
|
|
|
|
|
|
|
/* Poll modulations */
|
|
|
|
enum {
|
|
|
|
PN533_POLL_MOD_106KBPS_A,
|
|
|
|
PN533_POLL_MOD_212KBPS_FELICA,
|
|
|
|
PN533_POLL_MOD_424KBPS_FELICA,
|
|
|
|
PN533_POLL_MOD_106KBPS_JEWEL,
|
|
|
|
PN533_POLL_MOD_847KBPS_B,
|
2012-05-30 22:20:25 +07:00
|
|
|
PN533_LISTEN_MOD,
|
2011-07-02 05:31:37 +07:00
|
|
|
|
|
|
|
__PN533_POLL_MOD_AFTER_LAST,
|
|
|
|
};
|
|
|
|
#define PN533_POLL_MOD_MAX (__PN533_POLL_MOD_AFTER_LAST - 1)
|
|
|
|
|
|
|
|
struct pn533_poll_modulations {
|
|
|
|
struct {
|
|
|
|
u8 maxtg;
|
|
|
|
u8 brty;
|
|
|
|
union pn533_cmd_poll_initdata initiator_data;
|
|
|
|
} __packed data;
|
|
|
|
u8 len;
|
|
|
|
};
|
|
|
|
|
2013-01-16 21:51:51 +07:00
|
|
|
static const struct pn533_poll_modulations poll_mod[] = {
|
2011-07-02 05:31:37 +07:00
|
|
|
[PN533_POLL_MOD_106KBPS_A] = {
|
|
|
|
.data = {
|
|
|
|
.maxtg = 1,
|
|
|
|
.brty = 0,
|
|
|
|
},
|
|
|
|
.len = 2,
|
|
|
|
},
|
|
|
|
[PN533_POLL_MOD_212KBPS_FELICA] = {
|
|
|
|
.data = {
|
|
|
|
.maxtg = 1,
|
|
|
|
.brty = 1,
|
|
|
|
.initiator_data.felica = {
|
|
|
|
.opcode = PN533_FELICA_OPC_SENSF_REQ,
|
|
|
|
.sc = PN533_FELICA_SENSF_SC_ALL,
|
|
|
|
.rc = PN533_FELICA_SENSF_RC_NO_SYSTEM_CODE,
|
2013-05-27 19:59:40 +07:00
|
|
|
.tsn = 0x03,
|
2011-07-02 05:31:37 +07:00
|
|
|
},
|
|
|
|
},
|
|
|
|
.len = 7,
|
|
|
|
},
|
|
|
|
[PN533_POLL_MOD_424KBPS_FELICA] = {
|
|
|
|
.data = {
|
|
|
|
.maxtg = 1,
|
|
|
|
.brty = 2,
|
|
|
|
.initiator_data.felica = {
|
|
|
|
.opcode = PN533_FELICA_OPC_SENSF_REQ,
|
|
|
|
.sc = PN533_FELICA_SENSF_SC_ALL,
|
|
|
|
.rc = PN533_FELICA_SENSF_RC_NO_SYSTEM_CODE,
|
2013-05-27 19:59:40 +07:00
|
|
|
.tsn = 0x03,
|
2011-07-02 05:31:37 +07:00
|
|
|
},
|
|
|
|
},
|
|
|
|
.len = 7,
|
|
|
|
},
|
|
|
|
[PN533_POLL_MOD_106KBPS_JEWEL] = {
|
|
|
|
.data = {
|
|
|
|
.maxtg = 1,
|
|
|
|
.brty = 4,
|
|
|
|
},
|
|
|
|
.len = 2,
|
|
|
|
},
|
|
|
|
[PN533_POLL_MOD_847KBPS_B] = {
|
|
|
|
.data = {
|
|
|
|
.maxtg = 1,
|
|
|
|
.brty = 8,
|
|
|
|
.initiator_data.type_b = {
|
|
|
|
.afi = PN533_TYPE_B_AFI_ALL_FAMILIES,
|
|
|
|
.polling_method =
|
|
|
|
PN533_TYPE_B_POLL_METHOD_TIMESLOT,
|
|
|
|
},
|
|
|
|
},
|
|
|
|
.len = 3,
|
|
|
|
},
|
2012-05-30 22:20:25 +07:00
|
|
|
[PN533_LISTEN_MOD] = {
|
|
|
|
.len = 0,
|
|
|
|
},
|
2011-07-02 05:31:37 +07:00
|
|
|
};
|
|
|
|
|
|
|
|
/* PN533_CMD_IN_ATR */
|
|
|
|
|
|
|
|
struct pn533_cmd_activate_response {
|
|
|
|
u8 status;
|
|
|
|
u8 nfcid3t[10];
|
|
|
|
u8 didt;
|
|
|
|
u8 bst;
|
|
|
|
u8 brt;
|
|
|
|
u8 to;
|
|
|
|
u8 ppt;
|
|
|
|
/* optional */
|
|
|
|
u8 gt[];
|
|
|
|
} __packed;
|
|
|
|
|
2011-12-14 22:43:11 +07:00
|
|
|
struct pn533_cmd_jump_dep_response {
|
|
|
|
u8 status;
|
|
|
|
u8 tg;
|
|
|
|
u8 nfcid3t[10];
|
|
|
|
u8 didt;
|
|
|
|
u8 bst;
|
|
|
|
u8 brt;
|
|
|
|
u8 to;
|
|
|
|
u8 ppt;
|
|
|
|
/* optional */
|
|
|
|
u8 gt[];
|
|
|
|
} __packed;
|
2011-07-02 05:31:37 +07:00
|
|
|
|
2012-05-31 04:54:55 +07:00
|
|
|
|
|
|
|
/* PN533_TG_INIT_AS_TARGET */
|
|
|
|
#define PN533_INIT_TARGET_PASSIVE 0x1
|
|
|
|
#define PN533_INIT_TARGET_DEP 0x2
|
|
|
|
|
2012-06-01 18:21:13 +07:00
|
|
|
#define PN533_INIT_TARGET_RESP_FRAME_MASK 0x3
|
|
|
|
#define PN533_INIT_TARGET_RESP_ACTIVE 0x1
|
|
|
|
#define PN533_INIT_TARGET_RESP_DEP 0x4
|
|
|
|
|
2013-04-03 13:02:12 +07:00
|
|
|
enum pn533_protocol_type {
|
|
|
|
PN533_PROTO_REQ_ACK_RESP = 0,
|
|
|
|
PN533_PROTO_REQ_RESP
|
|
|
|
};
|
|
|
|
|
2011-07-02 05:31:37 +07:00
|
|
|
struct pn533 {
|
|
|
|
struct usb_device *udev;
|
|
|
|
struct usb_interface *interface;
|
|
|
|
struct nfc_dev *nfc_dev;
|
2013-04-03 13:02:10 +07:00
|
|
|
u32 device_type;
|
2013-04-03 13:02:12 +07:00
|
|
|
enum pn533_protocol_type protocol_type;
|
2011-07-02 05:31:37 +07:00
|
|
|
|
|
|
|
struct urb *out_urb;
|
|
|
|
struct urb *in_urb;
|
|
|
|
|
2012-04-11 00:43:18 +07:00
|
|
|
struct sk_buff_head resp_q;
|
|
|
|
|
2012-04-11 00:43:17 +07:00
|
|
|
struct workqueue_struct *wq;
|
|
|
|
struct work_struct cmd_work;
|
2012-08-18 04:47:54 +07:00
|
|
|
struct work_struct cmd_complete_work;
|
2012-05-30 22:20:25 +07:00
|
|
|
struct work_struct poll_work;
|
2012-04-11 00:43:18 +07:00
|
|
|
struct work_struct mi_work;
|
2012-05-31 05:07:51 +07:00
|
|
|
struct work_struct tg_work;
|
2013-04-03 13:02:10 +07:00
|
|
|
|
|
|
|
struct list_head cmd_queue;
|
|
|
|
struct pn533_cmd *cmd;
|
|
|
|
u8 cmd_pending;
|
|
|
|
struct mutex cmd_lock; /* protects cmd queue */
|
2011-07-02 05:31:37 +07:00
|
|
|
|
2012-12-10 20:42:46 +07:00
|
|
|
void *cmd_complete_mi_arg;
|
2011-07-02 05:31:37 +07:00
|
|
|
|
|
|
|
struct pn533_poll_modulations *poll_mod_active[PN533_POLL_MOD_MAX + 1];
|
|
|
|
u8 poll_mod_count;
|
|
|
|
u8 poll_mod_curr;
|
|
|
|
u32 poll_protocols;
|
2012-05-30 22:20:25 +07:00
|
|
|
u32 listen_protocols;
|
2013-04-03 13:02:10 +07:00
|
|
|
struct timer_list listen_timer;
|
|
|
|
int cancel_listen;
|
2012-05-30 22:20:25 +07:00
|
|
|
|
|
|
|
u8 *gb;
|
|
|
|
size_t gb_len;
|
2011-07-02 05:31:37 +07:00
|
|
|
|
|
|
|
u8 tgt_available_prots;
|
|
|
|
u8 tgt_active_prot;
|
2012-06-01 01:01:32 +07:00
|
|
|
u8 tgt_mode;
|
2012-07-03 01:04:01 +07:00
|
|
|
|
2012-12-10 20:43:01 +07:00
|
|
|
struct pn533_frame_ops *ops;
|
2012-08-18 04:47:54 +07:00
|
|
|
};
|
|
|
|
|
|
|
|
struct pn533_cmd {
|
|
|
|
struct list_head queue;
|
2013-04-03 13:02:06 +07:00
|
|
|
u8 code;
|
2013-04-03 13:02:11 +07:00
|
|
|
int status;
|
2012-11-26 20:18:34 +07:00
|
|
|
struct sk_buff *req;
|
|
|
|
struct sk_buff *resp;
|
2012-12-10 20:43:01 +07:00
|
|
|
int resp_len;
|
2013-04-03 13:02:04 +07:00
|
|
|
pn533_send_async_complete_t complete_cb;
|
|
|
|
void *complete_cb_context;
|
2011-07-02 05:31:37 +07:00
|
|
|
};
|
|
|
|
|
2013-04-03 13:01:58 +07:00
|
|
|
struct pn533_std_frame {
|
2011-07-02 05:31:37 +07:00
|
|
|
u8 preamble;
|
|
|
|
__be16 start_frame;
|
|
|
|
u8 datalen;
|
|
|
|
u8 datalen_checksum;
|
|
|
|
u8 data[];
|
|
|
|
} __packed;
|
|
|
|
|
2012-12-10 20:43:01 +07:00
|
|
|
struct pn533_frame_ops {
|
|
|
|
void (*tx_frame_init)(void *frame, u8 cmd_code);
|
|
|
|
void (*tx_frame_finish)(void *frame);
|
|
|
|
void (*tx_update_payload_len)(void *frame, int len);
|
|
|
|
int tx_header_len;
|
|
|
|
int tx_tail_len;
|
|
|
|
|
|
|
|
bool (*rx_is_frame_valid)(void *frame);
|
|
|
|
int (*rx_frame_size)(void *frame);
|
|
|
|
int rx_header_len;
|
|
|
|
int rx_tail_len;
|
|
|
|
|
|
|
|
int max_payload_len;
|
|
|
|
u8 (*get_cmd_code)(void *frame);
|
|
|
|
};
|
|
|
|
|
NFC: pn533: Add support for ACS ACR122U reader
ACS ACR122U is an USB NFC reader, PC/SC and CCID compilant, based
on NXP PN532 chip.
Internally, it's build of MCU, PN532 and an antenna. MCU makes the
device CCID and PC/SC compilant and provide USB connection.
In this achitecture, a host cannot talk directly to PN532 and must
rely on MCU. Luckily, MCU exposes pseud-APDU through PC/SC Escape
mechanism which let the host to transmit standard PN532 commands
directly to PN532 chip with some limitations.
The frame roughly looks like:
CCID header | APDU header | PN532 header
(pc_to_rdr_escape) | (pseudo apdu Direct Tramsmit) | (len, TFI, cmd, params)
Accordign to limitations, ACR122U does't provide any mechanism to
abort last issued command.
Signed-off-by: Waldemar Rymarkiewicz <waldemar.rymarkiewicz@tieto.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2013-04-03 13:02:13 +07:00
|
|
|
struct pn533_acr122_ccid_hdr {
|
|
|
|
u8 type;
|
|
|
|
u32 datalen;
|
|
|
|
u8 slot;
|
|
|
|
u8 seq;
|
|
|
|
u8 params[3]; /* 3 msg specific bytes or status, error and 1 specific
|
|
|
|
byte for reposnse msg */
|
|
|
|
u8 data[]; /* payload */
|
|
|
|
} __packed;
|
|
|
|
|
|
|
|
struct pn533_acr122_apdu_hdr {
|
|
|
|
u8 class;
|
|
|
|
u8 ins;
|
|
|
|
u8 p1;
|
|
|
|
u8 p2;
|
|
|
|
} __packed;
|
|
|
|
|
|
|
|
struct pn533_acr122_tx_frame {
|
|
|
|
struct pn533_acr122_ccid_hdr ccid;
|
|
|
|
struct pn533_acr122_apdu_hdr apdu;
|
|
|
|
u8 datalen;
|
|
|
|
u8 data[]; /* pn533 frame: TFI ... */
|
|
|
|
} __packed;
|
|
|
|
|
|
|
|
struct pn533_acr122_rx_frame {
|
|
|
|
struct pn533_acr122_ccid_hdr ccid;
|
|
|
|
u8 data[]; /* pn533 frame : TFI ... */
|
|
|
|
} __packed;
|
|
|
|
|
|
|
|
static void pn533_acr122_tx_frame_init(void *_frame, u8 cmd_code)
|
|
|
|
{
|
|
|
|
struct pn533_acr122_tx_frame *frame = _frame;
|
|
|
|
|
|
|
|
frame->ccid.type = PN533_ACR122_PC_TO_RDR_ESCAPE;
|
|
|
|
frame->ccid.datalen = sizeof(frame->apdu) + 1; /* sizeof(apdu_hdr) +
|
|
|
|
sizeof(datalen) */
|
|
|
|
frame->ccid.slot = 0;
|
|
|
|
frame->ccid.seq = 0;
|
|
|
|
frame->ccid.params[0] = 0;
|
|
|
|
frame->ccid.params[1] = 0;
|
|
|
|
frame->ccid.params[2] = 0;
|
|
|
|
|
|
|
|
frame->data[0] = PN533_STD_FRAME_DIR_OUT;
|
|
|
|
frame->data[1] = cmd_code;
|
|
|
|
frame->datalen = 2; /* data[0] + data[1] */
|
|
|
|
|
|
|
|
frame->apdu.class = 0xFF;
|
|
|
|
frame->apdu.ins = 0;
|
|
|
|
frame->apdu.p1 = 0;
|
|
|
|
frame->apdu.p2 = 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
static void pn533_acr122_tx_frame_finish(void *_frame)
|
|
|
|
{
|
|
|
|
struct pn533_acr122_tx_frame *frame = _frame;
|
|
|
|
|
|
|
|
frame->ccid.datalen += frame->datalen;
|
|
|
|
}
|
|
|
|
|
|
|
|
static void pn533_acr122_tx_update_payload_len(void *_frame, int len)
|
|
|
|
{
|
|
|
|
struct pn533_acr122_tx_frame *frame = _frame;
|
|
|
|
|
|
|
|
frame->datalen += len;
|
|
|
|
}
|
|
|
|
|
|
|
|
static bool pn533_acr122_is_rx_frame_valid(void *_frame)
|
|
|
|
{
|
|
|
|
struct pn533_acr122_rx_frame *frame = _frame;
|
|
|
|
|
|
|
|
if (frame->ccid.type != 0x83)
|
|
|
|
return false;
|
|
|
|
|
|
|
|
if (frame->data[frame->ccid.datalen - 2] == 0x63)
|
|
|
|
return false;
|
|
|
|
|
|
|
|
return true;
|
|
|
|
}
|
|
|
|
|
|
|
|
static int pn533_acr122_rx_frame_size(void *frame)
|
|
|
|
{
|
|
|
|
struct pn533_acr122_rx_frame *f = frame;
|
|
|
|
|
|
|
|
/* f->ccid.datalen already includes tail length */
|
|
|
|
return sizeof(struct pn533_acr122_rx_frame) + f->ccid.datalen;
|
|
|
|
}
|
|
|
|
|
|
|
|
static u8 pn533_acr122_get_cmd_code(void *frame)
|
|
|
|
{
|
|
|
|
struct pn533_acr122_rx_frame *f = frame;
|
|
|
|
|
|
|
|
return PN533_STD_FRAME_CMD(f);
|
|
|
|
}
|
|
|
|
|
|
|
|
static struct pn533_frame_ops pn533_acr122_frame_ops = {
|
|
|
|
.tx_frame_init = pn533_acr122_tx_frame_init,
|
|
|
|
.tx_frame_finish = pn533_acr122_tx_frame_finish,
|
|
|
|
.tx_update_payload_len = pn533_acr122_tx_update_payload_len,
|
|
|
|
.tx_header_len = PN533_ACR122_TX_FRAME_HEADER_LEN,
|
|
|
|
.tx_tail_len = PN533_ACR122_TX_FRAME_TAIL_LEN,
|
|
|
|
|
|
|
|
.rx_is_frame_valid = pn533_acr122_is_rx_frame_valid,
|
|
|
|
.rx_header_len = PN533_ACR122_RX_FRAME_HEADER_LEN,
|
|
|
|
.rx_tail_len = PN533_ACR122_RX_FRAME_TAIL_LEN,
|
|
|
|
.rx_frame_size = pn533_acr122_rx_frame_size,
|
|
|
|
|
|
|
|
.max_payload_len = PN533_ACR122_FRAME_MAX_PAYLOAD_LEN,
|
|
|
|
.get_cmd_code = pn533_acr122_get_cmd_code,
|
|
|
|
};
|
|
|
|
|
2011-07-02 05:31:37 +07:00
|
|
|
/* The rule: value + checksum = 0 */
|
2013-04-03 13:01:58 +07:00
|
|
|
static inline u8 pn533_std_checksum(u8 value)
|
2011-07-02 05:31:37 +07:00
|
|
|
{
|
|
|
|
return ~value + 1;
|
|
|
|
}
|
|
|
|
|
|
|
|
/* The rule: sum(data elements) + checksum = 0 */
|
2013-04-03 13:01:58 +07:00
|
|
|
static u8 pn533_std_data_checksum(u8 *data, int datalen)
|
2011-07-02 05:31:37 +07:00
|
|
|
{
|
|
|
|
u8 sum = 0;
|
|
|
|
int i;
|
|
|
|
|
|
|
|
for (i = 0; i < datalen; i++)
|
|
|
|
sum += data[i];
|
|
|
|
|
2013-04-03 13:01:58 +07:00
|
|
|
return pn533_std_checksum(sum);
|
2011-07-02 05:31:37 +07:00
|
|
|
}
|
|
|
|
|
2013-04-03 13:01:58 +07:00
|
|
|
static void pn533_std_tx_frame_init(void *_frame, u8 cmd_code)
|
2011-07-02 05:31:37 +07:00
|
|
|
{
|
2013-04-03 13:01:58 +07:00
|
|
|
struct pn533_std_frame *frame = _frame;
|
2012-12-10 20:43:01 +07:00
|
|
|
|
2011-07-02 05:31:37 +07:00
|
|
|
frame->preamble = 0;
|
2013-04-03 13:01:58 +07:00
|
|
|
frame->start_frame = cpu_to_be16(PN533_STD_FRAME_SOF);
|
|
|
|
PN533_STD_FRAME_IDENTIFIER(frame) = PN533_STD_FRAME_DIR_OUT;
|
|
|
|
PN533_STD_FRAME_CMD(frame) = cmd_code;
|
2011-07-02 05:31:37 +07:00
|
|
|
frame->datalen = 2;
|
|
|
|
}
|
|
|
|
|
2013-04-03 13:01:58 +07:00
|
|
|
static void pn533_std_tx_frame_finish(void *_frame)
|
2011-07-02 05:31:37 +07:00
|
|
|
{
|
2013-04-03 13:01:58 +07:00
|
|
|
struct pn533_std_frame *frame = _frame;
|
2012-12-10 20:43:01 +07:00
|
|
|
|
2013-04-03 13:01:58 +07:00
|
|
|
frame->datalen_checksum = pn533_std_checksum(frame->datalen);
|
2011-07-02 05:31:37 +07:00
|
|
|
|
2013-04-03 13:01:58 +07:00
|
|
|
PN533_STD_FRAME_CHECKSUM(frame) =
|
|
|
|
pn533_std_data_checksum(frame->data, frame->datalen);
|
2011-07-02 05:31:37 +07:00
|
|
|
|
2013-04-03 13:01:58 +07:00
|
|
|
PN533_STD_FRAME_POSTAMBLE(frame) = 0;
|
2011-07-02 05:31:37 +07:00
|
|
|
}
|
|
|
|
|
2013-04-03 13:01:58 +07:00
|
|
|
static void pn533_std_tx_update_payload_len(void *_frame, int len)
|
2012-12-10 20:43:01 +07:00
|
|
|
{
|
2013-04-03 13:01:58 +07:00
|
|
|
struct pn533_std_frame *frame = _frame;
|
2012-12-10 20:43:01 +07:00
|
|
|
|
|
|
|
frame->datalen += len;
|
|
|
|
}
|
|
|
|
|
2013-04-03 13:01:58 +07:00
|
|
|
static bool pn533_std_rx_frame_is_valid(void *_frame)
|
2011-07-02 05:31:37 +07:00
|
|
|
{
|
|
|
|
u8 checksum;
|
2013-04-03 13:01:58 +07:00
|
|
|
struct pn533_std_frame *frame = _frame;
|
2011-07-02 05:31:37 +07:00
|
|
|
|
2013-04-03 13:01:58 +07:00
|
|
|
if (frame->start_frame != cpu_to_be16(PN533_STD_FRAME_SOF))
|
2011-07-02 05:31:37 +07:00
|
|
|
return false;
|
|
|
|
|
2013-04-03 13:01:58 +07:00
|
|
|
checksum = pn533_std_checksum(frame->datalen);
|
2011-07-02 05:31:37 +07:00
|
|
|
if (checksum != frame->datalen_checksum)
|
|
|
|
return false;
|
|
|
|
|
2013-04-03 13:01:58 +07:00
|
|
|
checksum = pn533_std_data_checksum(frame->data, frame->datalen);
|
|
|
|
if (checksum != PN533_STD_FRAME_CHECKSUM(frame))
|
2011-07-02 05:31:37 +07:00
|
|
|
return false;
|
|
|
|
|
|
|
|
return true;
|
|
|
|
}
|
|
|
|
|
2013-04-03 13:01:58 +07:00
|
|
|
static bool pn533_std_rx_frame_is_ack(struct pn533_std_frame *frame)
|
2011-07-02 05:31:37 +07:00
|
|
|
{
|
2013-04-03 13:01:58 +07:00
|
|
|
if (frame->start_frame != cpu_to_be16(PN533_STD_FRAME_SOF))
|
2011-07-02 05:31:37 +07:00
|
|
|
return false;
|
|
|
|
|
|
|
|
if (frame->datalen != 0 || frame->datalen_checksum != 0xFF)
|
|
|
|
return false;
|
|
|
|
|
|
|
|
return true;
|
|
|
|
}
|
|
|
|
|
2013-04-03 13:01:58 +07:00
|
|
|
static inline int pn533_std_rx_frame_size(void *frame)
|
2012-12-10 20:43:01 +07:00
|
|
|
{
|
2013-04-03 13:01:58 +07:00
|
|
|
struct pn533_std_frame *f = frame;
|
2012-12-10 20:43:01 +07:00
|
|
|
|
2013-04-03 13:01:58 +07:00
|
|
|
return sizeof(struct pn533_std_frame) + f->datalen +
|
|
|
|
PN533_STD_FRAME_TAIL_LEN;
|
2012-12-10 20:43:01 +07:00
|
|
|
}
|
|
|
|
|
2013-04-03 13:01:58 +07:00
|
|
|
static u8 pn533_std_get_cmd_code(void *frame)
|
2012-12-10 20:43:01 +07:00
|
|
|
{
|
2013-04-03 13:01:58 +07:00
|
|
|
struct pn533_std_frame *f = frame;
|
2012-12-10 20:43:01 +07:00
|
|
|
|
2013-04-03 13:01:58 +07:00
|
|
|
return PN533_STD_FRAME_CMD(f);
|
2012-12-10 20:43:01 +07:00
|
|
|
}
|
|
|
|
|
2013-01-16 21:51:51 +07:00
|
|
|
static struct pn533_frame_ops pn533_std_frame_ops = {
|
2013-04-03 13:01:58 +07:00
|
|
|
.tx_frame_init = pn533_std_tx_frame_init,
|
|
|
|
.tx_frame_finish = pn533_std_tx_frame_finish,
|
|
|
|
.tx_update_payload_len = pn533_std_tx_update_payload_len,
|
|
|
|
.tx_header_len = PN533_STD_FRAME_HEADER_LEN,
|
|
|
|
.tx_tail_len = PN533_STD_FRAME_TAIL_LEN,
|
|
|
|
|
|
|
|
.rx_is_frame_valid = pn533_std_rx_frame_is_valid,
|
|
|
|
.rx_frame_size = pn533_std_rx_frame_size,
|
|
|
|
.rx_header_len = PN533_STD_FRAME_HEADER_LEN,
|
|
|
|
.rx_tail_len = PN533_STD_FRAME_TAIL_LEN,
|
|
|
|
|
|
|
|
.max_payload_len = PN533_STD_FRAME_MAX_PAYLOAD_LEN,
|
|
|
|
.get_cmd_code = pn533_std_get_cmd_code,
|
2012-12-10 20:43:01 +07:00
|
|
|
};
|
|
|
|
|
|
|
|
static bool pn533_rx_frame_is_cmd_response(struct pn533 *dev, void *frame)
|
2011-07-02 05:31:37 +07:00
|
|
|
{
|
2013-04-03 13:02:05 +07:00
|
|
|
return (dev->ops->get_cmd_code(frame) ==
|
2013-04-03 13:02:06 +07:00
|
|
|
PN533_CMD_RESPONSE(dev->cmd->code));
|
2011-07-02 05:31:37 +07:00
|
|
|
}
|
|
|
|
|
|
|
|
static void pn533_recv_response(struct urb *urb)
|
|
|
|
{
|
|
|
|
struct pn533 *dev = urb->context;
|
2013-04-03 13:02:11 +07:00
|
|
|
struct pn533_cmd *cmd = dev->cmd;
|
2012-12-10 20:43:01 +07:00
|
|
|
u8 *in_frame;
|
2011-07-02 05:31:37 +07:00
|
|
|
|
2013-04-03 13:02:11 +07:00
|
|
|
cmd->status = urb->status;
|
|
|
|
|
2011-07-02 05:31:37 +07:00
|
|
|
switch (urb->status) {
|
|
|
|
case 0:
|
2012-12-10 20:42:54 +07:00
|
|
|
break; /* success */
|
2011-07-02 05:31:37 +07:00
|
|
|
case -ECONNRESET:
|
|
|
|
case -ENOENT:
|
2012-12-10 20:42:49 +07:00
|
|
|
nfc_dev_dbg(&dev->interface->dev,
|
2012-12-10 20:42:54 +07:00
|
|
|
"The urb has been canceled (status %d)",
|
|
|
|
urb->status);
|
2012-04-11 00:43:17 +07:00
|
|
|
goto sched_wq;
|
2012-12-10 20:42:54 +07:00
|
|
|
case -ESHUTDOWN:
|
2011-07-02 05:31:37 +07:00
|
|
|
default:
|
2012-12-10 20:42:49 +07:00
|
|
|
nfc_dev_err(&dev->interface->dev,
|
2012-12-10 20:42:54 +07:00
|
|
|
"Urb failure (status %d)", urb->status);
|
2012-04-11 00:43:17 +07:00
|
|
|
goto sched_wq;
|
2011-07-02 05:31:37 +07:00
|
|
|
}
|
|
|
|
|
|
|
|
in_frame = dev->in_urb->transfer_buffer;
|
|
|
|
|
2012-12-10 20:42:55 +07:00
|
|
|
nfc_dev_dbg(&dev->interface->dev, "Received a frame.");
|
2013-03-20 17:27:57 +07:00
|
|
|
print_hex_dump_debug("PN533 RX: ", DUMP_PREFIX_NONE, 16, 1, in_frame,
|
|
|
|
dev->ops->rx_frame_size(in_frame), false);
|
2012-12-10 20:42:47 +07:00
|
|
|
|
2012-12-10 20:43:01 +07:00
|
|
|
if (!dev->ops->rx_is_frame_valid(in_frame)) {
|
2011-07-02 05:31:37 +07:00
|
|
|
nfc_dev_err(&dev->interface->dev, "Received an invalid frame");
|
2013-04-03 13:02:11 +07:00
|
|
|
cmd->status = -EIO;
|
2012-04-11 00:43:17 +07:00
|
|
|
goto sched_wq;
|
2011-07-02 05:31:37 +07:00
|
|
|
}
|
|
|
|
|
2012-12-10 20:43:01 +07:00
|
|
|
if (!pn533_rx_frame_is_cmd_response(dev, in_frame)) {
|
2012-12-10 20:42:49 +07:00
|
|
|
nfc_dev_err(&dev->interface->dev,
|
|
|
|
"It it not the response to the last command");
|
2013-04-03 13:02:11 +07:00
|
|
|
cmd->status = -EIO;
|
2012-04-11 00:43:17 +07:00
|
|
|
goto sched_wq;
|
2011-07-02 05:31:37 +07:00
|
|
|
}
|
|
|
|
|
2012-04-11 00:43:17 +07:00
|
|
|
sched_wq:
|
2012-08-18 04:47:54 +07:00
|
|
|
queue_work(dev->wq, &dev->cmd_complete_work);
|
2011-07-02 05:31:37 +07:00
|
|
|
}
|
|
|
|
|
|
|
|
static int pn533_submit_urb_for_response(struct pn533 *dev, gfp_t flags)
|
|
|
|
{
|
|
|
|
dev->in_urb->complete = pn533_recv_response;
|
|
|
|
|
|
|
|
return usb_submit_urb(dev->in_urb, flags);
|
|
|
|
}
|
|
|
|
|
|
|
|
static void pn533_recv_ack(struct urb *urb)
|
|
|
|
{
|
|
|
|
struct pn533 *dev = urb->context;
|
2013-04-03 13:02:11 +07:00
|
|
|
struct pn533_cmd *cmd = dev->cmd;
|
2013-04-03 13:01:58 +07:00
|
|
|
struct pn533_std_frame *in_frame;
|
2011-07-02 05:31:37 +07:00
|
|
|
int rc;
|
|
|
|
|
2013-04-03 13:02:11 +07:00
|
|
|
cmd->status = urb->status;
|
|
|
|
|
2011-07-02 05:31:37 +07:00
|
|
|
switch (urb->status) {
|
|
|
|
case 0:
|
2012-12-10 20:42:54 +07:00
|
|
|
break; /* success */
|
2011-07-02 05:31:37 +07:00
|
|
|
case -ECONNRESET:
|
|
|
|
case -ENOENT:
|
2012-12-10 20:42:49 +07:00
|
|
|
nfc_dev_dbg(&dev->interface->dev,
|
2012-12-10 20:42:54 +07:00
|
|
|
"The urb has been stopped (status %d)",
|
|
|
|
urb->status);
|
2012-04-11 00:43:17 +07:00
|
|
|
goto sched_wq;
|
2012-12-10 20:42:54 +07:00
|
|
|
case -ESHUTDOWN:
|
2011-07-02 05:31:37 +07:00
|
|
|
default:
|
2012-12-10 20:42:49 +07:00
|
|
|
nfc_dev_err(&dev->interface->dev,
|
2012-12-10 20:42:54 +07:00
|
|
|
"Urb failure (status %d)", urb->status);
|
2012-04-11 00:43:17 +07:00
|
|
|
goto sched_wq;
|
2011-07-02 05:31:37 +07:00
|
|
|
}
|
|
|
|
|
|
|
|
in_frame = dev->in_urb->transfer_buffer;
|
|
|
|
|
2013-04-03 13:01:58 +07:00
|
|
|
if (!pn533_std_rx_frame_is_ack(in_frame)) {
|
2011-07-02 05:31:37 +07:00
|
|
|
nfc_dev_err(&dev->interface->dev, "Received an invalid ack");
|
2013-04-03 13:02:11 +07:00
|
|
|
cmd->status = -EIO;
|
2012-04-11 00:43:17 +07:00
|
|
|
goto sched_wq;
|
2011-07-02 05:31:37 +07:00
|
|
|
}
|
|
|
|
|
|
|
|
rc = pn533_submit_urb_for_response(dev, GFP_ATOMIC);
|
|
|
|
if (rc) {
|
2012-12-10 20:42:49 +07:00
|
|
|
nfc_dev_err(&dev->interface->dev,
|
|
|
|
"usb_submit_urb failed with result %d", rc);
|
2013-04-03 13:02:11 +07:00
|
|
|
cmd->status = rc;
|
2012-04-11 00:43:17 +07:00
|
|
|
goto sched_wq;
|
2011-07-02 05:31:37 +07:00
|
|
|
}
|
|
|
|
|
|
|
|
return;
|
|
|
|
|
2012-04-11 00:43:17 +07:00
|
|
|
sched_wq:
|
2012-08-18 04:47:54 +07:00
|
|
|
queue_work(dev->wq, &dev->cmd_complete_work);
|
2011-07-02 05:31:37 +07:00
|
|
|
}
|
|
|
|
|
|
|
|
static int pn533_submit_urb_for_ack(struct pn533 *dev, gfp_t flags)
|
|
|
|
{
|
|
|
|
dev->in_urb->complete = pn533_recv_ack;
|
|
|
|
|
|
|
|
return usb_submit_urb(dev->in_urb, flags);
|
|
|
|
}
|
|
|
|
|
|
|
|
static int pn533_send_ack(struct pn533 *dev, gfp_t flags)
|
|
|
|
{
|
2013-04-03 13:01:58 +07:00
|
|
|
u8 ack[PN533_STD_FRAME_ACK_SIZE] = {0x00, 0x00, 0xff, 0x00, 0xff, 0x00};
|
2012-12-10 20:42:56 +07:00
|
|
|
/* spec 7.1.1.3: Preamble, SoPC (2), ACK Code (2), Postamble */
|
2011-07-02 05:31:37 +07:00
|
|
|
int rc;
|
|
|
|
|
|
|
|
nfc_dev_dbg(&dev->interface->dev, "%s", __func__);
|
|
|
|
|
2012-12-10 20:42:56 +07:00
|
|
|
dev->out_urb->transfer_buffer = ack;
|
|
|
|
dev->out_urb->transfer_buffer_length = sizeof(ack);
|
2011-07-02 05:31:37 +07:00
|
|
|
rc = usb_submit_urb(dev->out_urb, flags);
|
|
|
|
|
|
|
|
return rc;
|
|
|
|
}
|
|
|
|
|
2012-12-10 20:42:57 +07:00
|
|
|
static int __pn533_send_frame_async(struct pn533 *dev,
|
|
|
|
struct sk_buff *out,
|
|
|
|
struct sk_buff *in,
|
2013-04-03 13:02:08 +07:00
|
|
|
int in_len)
|
2011-07-02 05:31:37 +07:00
|
|
|
{
|
|
|
|
int rc;
|
|
|
|
|
2012-12-10 20:42:57 +07:00
|
|
|
dev->out_urb->transfer_buffer = out->data;
|
|
|
|
dev->out_urb->transfer_buffer_length = out->len;
|
2011-07-02 05:31:37 +07:00
|
|
|
|
2012-12-10 20:42:57 +07:00
|
|
|
dev->in_urb->transfer_buffer = in->data;
|
|
|
|
dev->in_urb->transfer_buffer_length = in_len;
|
2011-07-02 05:31:37 +07:00
|
|
|
|
2013-03-20 17:27:57 +07:00
|
|
|
print_hex_dump_debug("PN533 TX: ", DUMP_PREFIX_NONE, 16, 1,
|
|
|
|
out->data, out->len, false);
|
2012-12-10 20:42:47 +07:00
|
|
|
|
2012-11-26 20:18:33 +07:00
|
|
|
rc = usb_submit_urb(dev->out_urb, GFP_KERNEL);
|
2011-07-02 05:31:37 +07:00
|
|
|
if (rc)
|
|
|
|
return rc;
|
|
|
|
|
2013-04-03 13:02:12 +07:00
|
|
|
if (dev->protocol_type == PN533_PROTO_REQ_RESP) {
|
|
|
|
/* request for response for sent packet directly */
|
|
|
|
rc = pn533_submit_urb_for_response(dev, GFP_ATOMIC);
|
|
|
|
if (rc)
|
|
|
|
goto error;
|
|
|
|
} else if (dev->protocol_type == PN533_PROTO_REQ_ACK_RESP) {
|
|
|
|
/* request for ACK if that's the case */
|
|
|
|
rc = pn533_submit_urb_for_ack(dev, GFP_KERNEL);
|
|
|
|
if (rc)
|
|
|
|
goto error;
|
|
|
|
}
|
2011-07-02 05:31:37 +07:00
|
|
|
|
|
|
|
return 0;
|
|
|
|
|
|
|
|
error:
|
|
|
|
usb_unlink_urb(dev->out_urb);
|
|
|
|
return rc;
|
|
|
|
}
|
|
|
|
|
2012-12-10 20:43:01 +07:00
|
|
|
static void pn533_build_cmd_frame(struct pn533 *dev, u8 cmd_code,
|
|
|
|
struct sk_buff *skb)
|
2012-11-26 20:18:34 +07:00
|
|
|
{
|
|
|
|
/* payload is already there, just update datalen */
|
|
|
|
int payload_len = skb->len;
|
2012-12-10 20:43:01 +07:00
|
|
|
struct pn533_frame_ops *ops = dev->ops;
|
2012-11-26 20:18:34 +07:00
|
|
|
|
|
|
|
|
2012-12-10 20:43:01 +07:00
|
|
|
skb_push(skb, ops->tx_header_len);
|
|
|
|
skb_put(skb, ops->tx_tail_len);
|
2012-11-26 20:18:34 +07:00
|
|
|
|
2012-12-10 20:43:01 +07:00
|
|
|
ops->tx_frame_init(skb->data, cmd_code);
|
|
|
|
ops->tx_update_payload_len(skb->data, payload_len);
|
|
|
|
ops->tx_frame_finish(skb->data);
|
2012-11-26 20:18:34 +07:00
|
|
|
}
|
|
|
|
|
2013-04-03 13:02:08 +07:00
|
|
|
static int pn533_send_async_complete(struct pn533 *dev)
|
2012-11-26 20:18:34 +07:00
|
|
|
{
|
2013-04-03 13:02:08 +07:00
|
|
|
struct pn533_cmd *cmd = dev->cmd;
|
2013-04-03 13:02:11 +07:00
|
|
|
int status = cmd->status;
|
2012-11-26 20:18:34 +07:00
|
|
|
|
2013-04-03 13:02:04 +07:00
|
|
|
struct sk_buff *req = cmd->req;
|
|
|
|
struct sk_buff *resp = cmd->resp;
|
2012-11-26 20:18:34 +07:00
|
|
|
|
|
|
|
int rc;
|
|
|
|
|
|
|
|
dev_kfree_skb(req);
|
|
|
|
|
2012-12-10 20:42:59 +07:00
|
|
|
if (status < 0) {
|
2013-04-03 13:02:04 +07:00
|
|
|
rc = cmd->complete_cb(dev, cmd->complete_cb_context,
|
|
|
|
ERR_PTR(status));
|
2012-11-26 20:18:34 +07:00
|
|
|
dev_kfree_skb(resp);
|
2013-04-03 13:02:05 +07:00
|
|
|
goto done;
|
2012-11-26 20:18:34 +07:00
|
|
|
}
|
|
|
|
|
2012-12-10 20:43:01 +07:00
|
|
|
skb_put(resp, dev->ops->rx_frame_size(resp->data));
|
|
|
|
skb_pull(resp, dev->ops->rx_header_len);
|
|
|
|
skb_trim(resp, resp->len - dev->ops->rx_tail_len);
|
2012-11-26 20:18:34 +07:00
|
|
|
|
2013-04-03 13:02:04 +07:00
|
|
|
rc = cmd->complete_cb(dev, cmd->complete_cb_context, resp);
|
2012-11-26 20:18:34 +07:00
|
|
|
|
2013-04-03 13:02:05 +07:00
|
|
|
done:
|
2013-04-03 13:02:04 +07:00
|
|
|
kfree(cmd);
|
2013-04-03 13:02:05 +07:00
|
|
|
dev->cmd = NULL;
|
2012-11-26 20:18:34 +07:00
|
|
|
return rc;
|
|
|
|
}
|
|
|
|
|
|
|
|
static int __pn533_send_async(struct pn533 *dev, u8 cmd_code,
|
|
|
|
struct sk_buff *req, struct sk_buff *resp,
|
|
|
|
int resp_len,
|
|
|
|
pn533_send_async_complete_t complete_cb,
|
|
|
|
void *complete_cb_context)
|
|
|
|
{
|
|
|
|
struct pn533_cmd *cmd;
|
|
|
|
int rc = 0;
|
|
|
|
|
2012-12-10 20:42:55 +07:00
|
|
|
nfc_dev_dbg(&dev->interface->dev, "Sending command 0x%x", cmd_code);
|
2012-11-26 20:18:34 +07:00
|
|
|
|
2013-04-03 13:02:04 +07:00
|
|
|
cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
|
|
|
|
if (!cmd)
|
2012-11-26 20:18:34 +07:00
|
|
|
return -ENOMEM;
|
|
|
|
|
2013-04-03 13:02:06 +07:00
|
|
|
cmd->code = cmd_code;
|
2013-04-03 13:02:04 +07:00
|
|
|
cmd->req = req;
|
|
|
|
cmd->resp = resp;
|
|
|
|
cmd->resp_len = resp_len;
|
|
|
|
cmd->complete_cb = complete_cb;
|
|
|
|
cmd->complete_cb_context = complete_cb_context;
|
2012-11-26 20:18:34 +07:00
|
|
|
|
2012-12-10 20:43:01 +07:00
|
|
|
pn533_build_cmd_frame(dev, cmd_code, req);
|
2012-11-26 20:18:34 +07:00
|
|
|
|
|
|
|
mutex_lock(&dev->cmd_lock);
|
|
|
|
|
|
|
|
if (!dev->cmd_pending) {
|
2013-04-03 13:02:08 +07:00
|
|
|
rc = __pn533_send_frame_async(dev, req, resp, resp_len);
|
2012-11-26 20:18:34 +07:00
|
|
|
if (rc)
|
|
|
|
goto error;
|
|
|
|
|
|
|
|
dev->cmd_pending = 1;
|
2013-04-03 13:02:05 +07:00
|
|
|
dev->cmd = cmd;
|
2012-11-26 20:18:34 +07:00
|
|
|
goto unlock;
|
|
|
|
}
|
|
|
|
|
2012-12-10 20:42:55 +07:00
|
|
|
nfc_dev_dbg(&dev->interface->dev, "%s Queueing command 0x%x", __func__,
|
|
|
|
cmd_code);
|
2012-11-26 20:18:34 +07:00
|
|
|
|
|
|
|
INIT_LIST_HEAD(&cmd->queue);
|
|
|
|
list_add_tail(&cmd->queue, &dev->cmd_queue);
|
|
|
|
|
|
|
|
goto unlock;
|
|
|
|
|
|
|
|
error:
|
2013-04-03 13:02:04 +07:00
|
|
|
kfree(cmd);
|
2012-11-26 20:18:34 +07:00
|
|
|
unlock:
|
|
|
|
mutex_unlock(&dev->cmd_lock);
|
|
|
|
return rc;
|
2012-11-26 20:18:35 +07:00
|
|
|
}
|
|
|
|
|
|
|
|
static int pn533_send_data_async(struct pn533 *dev, u8 cmd_code,
|
|
|
|
struct sk_buff *req,
|
|
|
|
pn533_send_async_complete_t complete_cb,
|
|
|
|
void *complete_cb_context)
|
|
|
|
{
|
|
|
|
struct sk_buff *resp;
|
|
|
|
int rc;
|
2012-12-10 20:43:01 +07:00
|
|
|
int resp_len = dev->ops->rx_header_len +
|
|
|
|
dev->ops->max_payload_len +
|
|
|
|
dev->ops->rx_tail_len;
|
2012-11-26 20:18:35 +07:00
|
|
|
|
|
|
|
resp = nfc_alloc_recv_skb(resp_len, GFP_KERNEL);
|
|
|
|
if (!resp)
|
|
|
|
return -ENOMEM;
|
|
|
|
|
|
|
|
rc = __pn533_send_async(dev, cmd_code, req, resp, resp_len, complete_cb,
|
|
|
|
complete_cb_context);
|
|
|
|
if (rc)
|
|
|
|
dev_kfree_skb(resp);
|
|
|
|
|
|
|
|
return rc;
|
2012-11-26 20:18:34 +07:00
|
|
|
}
|
|
|
|
|
|
|
|
static int pn533_send_cmd_async(struct pn533 *dev, u8 cmd_code,
|
|
|
|
struct sk_buff *req,
|
|
|
|
pn533_send_async_complete_t complete_cb,
|
|
|
|
void *complete_cb_context)
|
|
|
|
{
|
|
|
|
struct sk_buff *resp;
|
|
|
|
int rc;
|
2012-12-10 20:43:01 +07:00
|
|
|
int resp_len = dev->ops->rx_header_len +
|
|
|
|
dev->ops->max_payload_len +
|
|
|
|
dev->ops->rx_tail_len;
|
2012-11-26 20:18:34 +07:00
|
|
|
|
2012-12-10 20:43:01 +07:00
|
|
|
resp = alloc_skb(resp_len, GFP_KERNEL);
|
2012-11-26 20:18:34 +07:00
|
|
|
if (!resp)
|
|
|
|
return -ENOMEM;
|
|
|
|
|
2012-12-10 20:43:01 +07:00
|
|
|
rc = __pn533_send_async(dev, cmd_code, req, resp, resp_len, complete_cb,
|
|
|
|
complete_cb_context);
|
2012-11-26 20:18:34 +07:00
|
|
|
if (rc)
|
|
|
|
dev_kfree_skb(resp);
|
|
|
|
|
|
|
|
return rc;
|
|
|
|
}
|
|
|
|
|
2012-12-10 20:42:46 +07:00
|
|
|
/*
|
|
|
|
* pn533_send_cmd_direct_async
|
|
|
|
*
|
|
|
|
* The function sends a piority cmd directly to the chip omiting the cmd
|
|
|
|
* queue. It's intended to be used by chaining mechanism of received responses
|
|
|
|
* where the host has to request every single chunk of data before scheduling
|
|
|
|
* next cmd from the queue.
|
|
|
|
*/
|
|
|
|
static int pn533_send_cmd_direct_async(struct pn533 *dev, u8 cmd_code,
|
|
|
|
struct sk_buff *req,
|
|
|
|
pn533_send_async_complete_t complete_cb,
|
|
|
|
void *complete_cb_context)
|
|
|
|
{
|
|
|
|
struct sk_buff *resp;
|
2013-04-03 13:02:04 +07:00
|
|
|
struct pn533_cmd *cmd;
|
2012-12-10 20:42:46 +07:00
|
|
|
int rc;
|
2012-12-10 20:43:01 +07:00
|
|
|
int resp_len = dev->ops->rx_header_len +
|
|
|
|
dev->ops->max_payload_len +
|
|
|
|
dev->ops->rx_tail_len;
|
2012-12-10 20:42:46 +07:00
|
|
|
|
|
|
|
resp = alloc_skb(resp_len, GFP_KERNEL);
|
|
|
|
if (!resp)
|
|
|
|
return -ENOMEM;
|
|
|
|
|
2013-04-03 13:02:04 +07:00
|
|
|
cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
|
|
|
|
if (!cmd) {
|
2012-12-10 20:42:46 +07:00
|
|
|
dev_kfree_skb(resp);
|
|
|
|
return -ENOMEM;
|
|
|
|
}
|
|
|
|
|
2013-04-03 13:02:06 +07:00
|
|
|
cmd->code = cmd_code;
|
2013-04-03 13:02:04 +07:00
|
|
|
cmd->req = req;
|
|
|
|
cmd->resp = resp;
|
|
|
|
cmd->resp_len = resp_len;
|
|
|
|
cmd->complete_cb = complete_cb;
|
|
|
|
cmd->complete_cb_context = complete_cb_context;
|
2012-12-10 20:42:46 +07:00
|
|
|
|
2012-12-10 20:43:01 +07:00
|
|
|
pn533_build_cmd_frame(dev, cmd_code, req);
|
2012-12-10 20:42:46 +07:00
|
|
|
|
2013-04-03 13:02:08 +07:00
|
|
|
rc = __pn533_send_frame_async(dev, req, resp, resp_len);
|
2012-12-10 20:42:46 +07:00
|
|
|
if (rc < 0) {
|
|
|
|
dev_kfree_skb(resp);
|
2013-04-03 13:02:04 +07:00
|
|
|
kfree(cmd);
|
2013-04-03 13:02:05 +07:00
|
|
|
} else {
|
|
|
|
dev->cmd = cmd;
|
2012-12-10 20:42:46 +07:00
|
|
|
}
|
|
|
|
|
|
|
|
return rc;
|
|
|
|
}
|
|
|
|
|
2013-04-03 13:02:09 +07:00
|
|
|
static void pn533_wq_cmd_complete(struct work_struct *work)
|
|
|
|
{
|
|
|
|
struct pn533 *dev = container_of(work, struct pn533, cmd_complete_work);
|
|
|
|
int rc;
|
|
|
|
|
|
|
|
rc = pn533_send_async_complete(dev);
|
|
|
|
if (rc != -EINPROGRESS)
|
|
|
|
queue_work(dev->wq, &dev->cmd_work);
|
|
|
|
}
|
|
|
|
|
2012-08-18 04:47:54 +07:00
|
|
|
static void pn533_wq_cmd(struct work_struct *work)
|
|
|
|
{
|
|
|
|
struct pn533 *dev = container_of(work, struct pn533, cmd_work);
|
|
|
|
struct pn533_cmd *cmd;
|
2013-04-03 13:02:03 +07:00
|
|
|
int rc;
|
2012-08-18 04:47:54 +07:00
|
|
|
|
|
|
|
mutex_lock(&dev->cmd_lock);
|
|
|
|
|
|
|
|
if (list_empty(&dev->cmd_queue)) {
|
|
|
|
dev->cmd_pending = 0;
|
|
|
|
mutex_unlock(&dev->cmd_lock);
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
|
|
|
|
cmd = list_first_entry(&dev->cmd_queue, struct pn533_cmd, queue);
|
|
|
|
|
2012-10-25 22:29:45 +07:00
|
|
|
list_del(&cmd->queue);
|
|
|
|
|
2012-08-18 04:47:54 +07:00
|
|
|
mutex_unlock(&dev->cmd_lock);
|
|
|
|
|
2013-04-03 13:02:08 +07:00
|
|
|
rc = __pn533_send_frame_async(dev, cmd->req, cmd->resp, cmd->resp_len);
|
2013-04-03 13:02:03 +07:00
|
|
|
if (rc < 0) {
|
|
|
|
dev_kfree_skb(cmd->req);
|
|
|
|
dev_kfree_skb(cmd->resp);
|
2013-04-03 13:02:04 +07:00
|
|
|
kfree(cmd);
|
2013-04-03 13:02:05 +07:00
|
|
|
return;
|
2013-04-03 13:02:03 +07:00
|
|
|
}
|
2013-04-03 13:02:05 +07:00
|
|
|
|
|
|
|
dev->cmd = cmd;
|
2012-08-18 04:47:54 +07:00
|
|
|
}
|
|
|
|
|
2011-07-02 05:31:37 +07:00
|
|
|
struct pn533_sync_cmd_response {
|
2012-11-26 20:18:36 +07:00
|
|
|
struct sk_buff *resp;
|
2011-07-02 05:31:37 +07:00
|
|
|
struct completion done;
|
|
|
|
};
|
|
|
|
|
2012-11-26 20:18:36 +07:00
|
|
|
static int pn533_send_sync_complete(struct pn533 *dev, void *_arg,
|
|
|
|
struct sk_buff *resp)
|
|
|
|
{
|
|
|
|
struct pn533_sync_cmd_response *arg = _arg;
|
|
|
|
|
|
|
|
arg->resp = resp;
|
|
|
|
complete(&arg->done);
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
/* pn533_send_cmd_sync
|
|
|
|
*
|
|
|
|
* Please note the req parameter is freed inside the function to
|
|
|
|
* limit a number of return value interpretations by the caller.
|
|
|
|
*
|
|
|
|
* 1. negative in case of error during TX path -> req should be freed
|
|
|
|
*
|
|
|
|
* 2. negative in case of error during RX path -> req should not be freed
|
|
|
|
* as it's been already freed at the begining of RX path by
|
|
|
|
* async_complete_cb.
|
|
|
|
*
|
|
|
|
* 3. valid pointer in case of succesfult RX path
|
|
|
|
*
|
|
|
|
* A caller has to check a return value with IS_ERR macro. If the test pass,
|
|
|
|
* the returned pointer is valid.
|
|
|
|
*
|
|
|
|
* */
|
|
|
|
static struct sk_buff *pn533_send_cmd_sync(struct pn533 *dev, u8 cmd_code,
|
|
|
|
struct sk_buff *req)
|
|
|
|
{
|
|
|
|
int rc;
|
|
|
|
struct pn533_sync_cmd_response arg;
|
|
|
|
|
|
|
|
init_completion(&arg.done);
|
|
|
|
|
|
|
|
rc = pn533_send_cmd_async(dev, cmd_code, req,
|
|
|
|
pn533_send_sync_complete, &arg);
|
|
|
|
if (rc) {
|
|
|
|
dev_kfree_skb(req);
|
|
|
|
return ERR_PTR(rc);
|
|
|
|
}
|
|
|
|
|
|
|
|
wait_for_completion(&arg.done);
|
|
|
|
|
|
|
|
return arg.resp;
|
|
|
|
}
|
|
|
|
|
2011-07-02 05:31:37 +07:00
|
|
|
static void pn533_send_complete(struct urb *urb)
|
|
|
|
{
|
|
|
|
struct pn533 *dev = urb->context;
|
|
|
|
|
|
|
|
switch (urb->status) {
|
|
|
|
case 0:
|
2012-12-10 20:42:54 +07:00
|
|
|
break; /* success */
|
2011-07-02 05:31:37 +07:00
|
|
|
case -ECONNRESET:
|
|
|
|
case -ENOENT:
|
2012-12-10 20:42:49 +07:00
|
|
|
nfc_dev_dbg(&dev->interface->dev,
|
2012-12-10 20:42:54 +07:00
|
|
|
"The urb has been stopped (status %d)",
|
|
|
|
urb->status);
|
2011-07-02 05:31:37 +07:00
|
|
|
break;
|
2012-12-10 20:42:54 +07:00
|
|
|
case -ESHUTDOWN:
|
2011-07-02 05:31:37 +07:00
|
|
|
default:
|
2012-12-10 20:42:54 +07:00
|
|
|
nfc_dev_err(&dev->interface->dev,
|
|
|
|
"Urb failure (status %d)", urb->status);
|
2011-07-02 05:31:37 +07:00
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2013-04-03 13:02:14 +07:00
|
|
|
static void pn533_abort_cmd(struct pn533 *dev, gfp_t flags)
|
|
|
|
{
|
|
|
|
/* ACR122U does not support any command which aborts last
|
|
|
|
* issued command i.e. as ACK for standard PN533. Additionally,
|
|
|
|
* it behaves stange, sending broken or incorrect responses,
|
|
|
|
* when we cancel urb before the chip will send response.
|
|
|
|
*/
|
|
|
|
if (dev->device_type == PN533_DEVICE_ACR122U)
|
|
|
|
return;
|
|
|
|
|
|
|
|
/* An ack will cancel the last issued command */
|
|
|
|
pn533_send_ack(dev, flags);
|
|
|
|
|
|
|
|
/* cancel the urb request */
|
|
|
|
usb_kill_urb(dev->in_urb);
|
|
|
|
}
|
|
|
|
|
2012-12-10 20:43:01 +07:00
|
|
|
static struct sk_buff *pn533_alloc_skb(struct pn533 *dev, unsigned int size)
|
2012-11-26 20:18:37 +07:00
|
|
|
{
|
|
|
|
struct sk_buff *skb;
|
|
|
|
|
2012-12-10 20:43:01 +07:00
|
|
|
skb = alloc_skb(dev->ops->tx_header_len +
|
2012-11-26 20:18:37 +07:00
|
|
|
size +
|
2012-12-10 20:43:01 +07:00
|
|
|
dev->ops->tx_tail_len, GFP_KERNEL);
|
2012-11-26 20:18:37 +07:00
|
|
|
|
|
|
|
if (skb)
|
2012-12-10 20:43:01 +07:00
|
|
|
skb_reserve(skb, dev->ops->tx_header_len);
|
2012-11-26 20:18:37 +07:00
|
|
|
|
|
|
|
return skb;
|
|
|
|
}
|
|
|
|
|
2011-07-02 05:31:37 +07:00
|
|
|
struct pn533_target_type_a {
|
|
|
|
__be16 sens_res;
|
|
|
|
u8 sel_res;
|
|
|
|
u8 nfcid_len;
|
|
|
|
u8 nfcid_data[];
|
|
|
|
} __packed;
|
|
|
|
|
|
|
|
|
|
|
|
#define PN533_TYPE_A_SENS_RES_NFCID1(x) ((u8)((be16_to_cpu(x) & 0x00C0) >> 6))
|
|
|
|
#define PN533_TYPE_A_SENS_RES_SSD(x) ((u8)((be16_to_cpu(x) & 0x001F) >> 0))
|
|
|
|
#define PN533_TYPE_A_SENS_RES_PLATCONF(x) ((u8)((be16_to_cpu(x) & 0x0F00) >> 8))
|
|
|
|
|
|
|
|
#define PN533_TYPE_A_SENS_RES_SSD_JEWEL 0x00
|
|
|
|
#define PN533_TYPE_A_SENS_RES_PLATCONF_JEWEL 0x0C
|
|
|
|
|
|
|
|
#define PN533_TYPE_A_SEL_PROT(x) (((x) & 0x60) >> 5)
|
|
|
|
#define PN533_TYPE_A_SEL_CASCADE(x) (((x) & 0x04) >> 2)
|
|
|
|
|
|
|
|
#define PN533_TYPE_A_SEL_PROT_MIFARE 0
|
|
|
|
#define PN533_TYPE_A_SEL_PROT_ISO14443 1
|
|
|
|
#define PN533_TYPE_A_SEL_PROT_DEP 2
|
|
|
|
#define PN533_TYPE_A_SEL_PROT_ISO14443_DEP 3
|
|
|
|
|
|
|
|
static bool pn533_target_type_a_is_valid(struct pn533_target_type_a *type_a,
|
|
|
|
int target_data_len)
|
|
|
|
{
|
|
|
|
u8 ssd;
|
|
|
|
u8 platconf;
|
|
|
|
|
|
|
|
if (target_data_len < sizeof(struct pn533_target_type_a))
|
|
|
|
return false;
|
|
|
|
|
|
|
|
/* The lenght check of nfcid[] and ats[] are not being performed because
|
|
|
|
the values are not being used */
|
|
|
|
|
|
|
|
/* Requirement 4.6.3.3 from NFC Forum Digital Spec */
|
|
|
|
ssd = PN533_TYPE_A_SENS_RES_SSD(type_a->sens_res);
|
|
|
|
platconf = PN533_TYPE_A_SENS_RES_PLATCONF(type_a->sens_res);
|
|
|
|
|
|
|
|
if ((ssd == PN533_TYPE_A_SENS_RES_SSD_JEWEL &&
|
2012-12-10 20:42:51 +07:00
|
|
|
platconf != PN533_TYPE_A_SENS_RES_PLATCONF_JEWEL) ||
|
|
|
|
(ssd != PN533_TYPE_A_SENS_RES_SSD_JEWEL &&
|
|
|
|
platconf == PN533_TYPE_A_SENS_RES_PLATCONF_JEWEL))
|
2011-07-02 05:31:37 +07:00
|
|
|
return false;
|
|
|
|
|
|
|
|
/* Requirements 4.8.2.1, 4.8.2.3, 4.8.2.5 and 4.8.2.7 from NFC Forum */
|
|
|
|
if (PN533_TYPE_A_SEL_CASCADE(type_a->sel_res) != 0)
|
|
|
|
return false;
|
|
|
|
|
|
|
|
return true;
|
|
|
|
}
|
|
|
|
|
|
|
|
static int pn533_target_found_type_a(struct nfc_target *nfc_tgt, u8 *tgt_data,
|
|
|
|
int tgt_data_len)
|
|
|
|
{
|
|
|
|
struct pn533_target_type_a *tgt_type_a;
|
|
|
|
|
2012-12-10 20:42:50 +07:00
|
|
|
tgt_type_a = (struct pn533_target_type_a *)tgt_data;
|
2011-07-02 05:31:37 +07:00
|
|
|
|
|
|
|
if (!pn533_target_type_a_is_valid(tgt_type_a, tgt_data_len))
|
|
|
|
return -EPROTO;
|
|
|
|
|
|
|
|
switch (PN533_TYPE_A_SEL_PROT(tgt_type_a->sel_res)) {
|
|
|
|
case PN533_TYPE_A_SEL_PROT_MIFARE:
|
|
|
|
nfc_tgt->supported_protocols = NFC_PROTO_MIFARE_MASK;
|
|
|
|
break;
|
|
|
|
case PN533_TYPE_A_SEL_PROT_ISO14443:
|
|
|
|
nfc_tgt->supported_protocols = NFC_PROTO_ISO14443_MASK;
|
|
|
|
break;
|
|
|
|
case PN533_TYPE_A_SEL_PROT_DEP:
|
|
|
|
nfc_tgt->supported_protocols = NFC_PROTO_NFC_DEP_MASK;
|
|
|
|
break;
|
|
|
|
case PN533_TYPE_A_SEL_PROT_ISO14443_DEP:
|
|
|
|
nfc_tgt->supported_protocols = NFC_PROTO_ISO14443_MASK |
|
|
|
|
NFC_PROTO_NFC_DEP_MASK;
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
|
|
|
|
nfc_tgt->sens_res = be16_to_cpu(tgt_type_a->sens_res);
|
|
|
|
nfc_tgt->sel_res = tgt_type_a->sel_res;
|
2012-03-05 07:03:33 +07:00
|
|
|
nfc_tgt->nfcid1_len = tgt_type_a->nfcid_len;
|
|
|
|
memcpy(nfc_tgt->nfcid1, tgt_type_a->nfcid_data, nfc_tgt->nfcid1_len);
|
2011-07-02 05:31:37 +07:00
|
|
|
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
struct pn533_target_felica {
|
|
|
|
u8 pol_res;
|
|
|
|
u8 opcode;
|
2013-05-27 20:29:11 +07:00
|
|
|
u8 nfcid2[NFC_NFCID2_MAXSIZE];
|
2011-07-02 05:31:37 +07:00
|
|
|
u8 pad[8];
|
|
|
|
/* optional */
|
|
|
|
u8 syst_code[];
|
|
|
|
} __packed;
|
|
|
|
|
|
|
|
#define PN533_FELICA_SENSF_NFCID2_DEP_B1 0x01
|
|
|
|
#define PN533_FELICA_SENSF_NFCID2_DEP_B2 0xFE
|
|
|
|
|
|
|
|
static bool pn533_target_felica_is_valid(struct pn533_target_felica *felica,
|
|
|
|
int target_data_len)
|
|
|
|
{
|
|
|
|
if (target_data_len < sizeof(struct pn533_target_felica))
|
|
|
|
return false;
|
|
|
|
|
|
|
|
if (felica->opcode != PN533_FELICA_OPC_SENSF_RES)
|
|
|
|
return false;
|
|
|
|
|
|
|
|
return true;
|
|
|
|
}
|
|
|
|
|
|
|
|
static int pn533_target_found_felica(struct nfc_target *nfc_tgt, u8 *tgt_data,
|
|
|
|
int tgt_data_len)
|
|
|
|
{
|
|
|
|
struct pn533_target_felica *tgt_felica;
|
|
|
|
|
2012-12-10 20:42:50 +07:00
|
|
|
tgt_felica = (struct pn533_target_felica *)tgt_data;
|
2011-07-02 05:31:37 +07:00
|
|
|
|
|
|
|
if (!pn533_target_felica_is_valid(tgt_felica, tgt_data_len))
|
|
|
|
return -EPROTO;
|
|
|
|
|
2012-12-10 20:42:51 +07:00
|
|
|
if ((tgt_felica->nfcid2[0] == PN533_FELICA_SENSF_NFCID2_DEP_B1) &&
|
|
|
|
(tgt_felica->nfcid2[1] == PN533_FELICA_SENSF_NFCID2_DEP_B2))
|
2011-07-02 05:31:37 +07:00
|
|
|
nfc_tgt->supported_protocols = NFC_PROTO_NFC_DEP_MASK;
|
|
|
|
else
|
|
|
|
nfc_tgt->supported_protocols = NFC_PROTO_FELICA_MASK;
|
|
|
|
|
2012-03-05 07:03:45 +07:00
|
|
|
memcpy(nfc_tgt->sensf_res, &tgt_felica->opcode, 9);
|
|
|
|
nfc_tgt->sensf_res_len = 9;
|
|
|
|
|
2013-05-27 20:29:11 +07:00
|
|
|
memcpy(nfc_tgt->nfcid2, tgt_felica->nfcid2, NFC_NFCID2_MAXSIZE);
|
|
|
|
nfc_tgt->nfcid2_len = NFC_NFCID2_MAXSIZE;
|
|
|
|
|
2011-07-02 05:31:37 +07:00
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
struct pn533_target_jewel {
|
|
|
|
__be16 sens_res;
|
|
|
|
u8 jewelid[4];
|
|
|
|
} __packed;
|
|
|
|
|
|
|
|
static bool pn533_target_jewel_is_valid(struct pn533_target_jewel *jewel,
|
|
|
|
int target_data_len)
|
|
|
|
{
|
|
|
|
u8 ssd;
|
|
|
|
u8 platconf;
|
|
|
|
|
|
|
|
if (target_data_len < sizeof(struct pn533_target_jewel))
|
|
|
|
return false;
|
|
|
|
|
|
|
|
/* Requirement 4.6.3.3 from NFC Forum Digital Spec */
|
|
|
|
ssd = PN533_TYPE_A_SENS_RES_SSD(jewel->sens_res);
|
|
|
|
platconf = PN533_TYPE_A_SENS_RES_PLATCONF(jewel->sens_res);
|
|
|
|
|
|
|
|
if ((ssd == PN533_TYPE_A_SENS_RES_SSD_JEWEL &&
|
2012-12-10 20:42:51 +07:00
|
|
|
platconf != PN533_TYPE_A_SENS_RES_PLATCONF_JEWEL) ||
|
|
|
|
(ssd != PN533_TYPE_A_SENS_RES_SSD_JEWEL &&
|
|
|
|
platconf == PN533_TYPE_A_SENS_RES_PLATCONF_JEWEL))
|
2011-07-02 05:31:37 +07:00
|
|
|
return false;
|
|
|
|
|
|
|
|
return true;
|
|
|
|
}
|
|
|
|
|
|
|
|
static int pn533_target_found_jewel(struct nfc_target *nfc_tgt, u8 *tgt_data,
|
|
|
|
int tgt_data_len)
|
|
|
|
{
|
|
|
|
struct pn533_target_jewel *tgt_jewel;
|
|
|
|
|
2012-12-10 20:42:50 +07:00
|
|
|
tgt_jewel = (struct pn533_target_jewel *)tgt_data;
|
2011-07-02 05:31:37 +07:00
|
|
|
|
|
|
|
if (!pn533_target_jewel_is_valid(tgt_jewel, tgt_data_len))
|
|
|
|
return -EPROTO;
|
|
|
|
|
|
|
|
nfc_tgt->supported_protocols = NFC_PROTO_JEWEL_MASK;
|
|
|
|
nfc_tgt->sens_res = be16_to_cpu(tgt_jewel->sens_res);
|
2012-03-05 07:03:46 +07:00
|
|
|
nfc_tgt->nfcid1_len = 4;
|
|
|
|
memcpy(nfc_tgt->nfcid1, tgt_jewel->jewelid, nfc_tgt->nfcid1_len);
|
2011-07-02 05:31:37 +07:00
|
|
|
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
struct pn533_type_b_prot_info {
|
|
|
|
u8 bitrate;
|
|
|
|
u8 fsci_type;
|
|
|
|
u8 fwi_adc_fo;
|
|
|
|
} __packed;
|
|
|
|
|
|
|
|
#define PN533_TYPE_B_PROT_FCSI(x) (((x) & 0xF0) >> 4)
|
|
|
|
#define PN533_TYPE_B_PROT_TYPE(x) (((x) & 0x0F) >> 0)
|
|
|
|
#define PN533_TYPE_B_PROT_TYPE_RFU_MASK 0x8
|
|
|
|
|
|
|
|
struct pn533_type_b_sens_res {
|
|
|
|
u8 opcode;
|
|
|
|
u8 nfcid[4];
|
|
|
|
u8 appdata[4];
|
|
|
|
struct pn533_type_b_prot_info prot_info;
|
|
|
|
} __packed;
|
|
|
|
|
|
|
|
#define PN533_TYPE_B_OPC_SENSB_RES 0x50
|
|
|
|
|
|
|
|
struct pn533_target_type_b {
|
|
|
|
struct pn533_type_b_sens_res sensb_res;
|
|
|
|
u8 attrib_res_len;
|
|
|
|
u8 attrib_res[];
|
|
|
|
} __packed;
|
|
|
|
|
|
|
|
static bool pn533_target_type_b_is_valid(struct pn533_target_type_b *type_b,
|
|
|
|
int target_data_len)
|
|
|
|
{
|
|
|
|
if (target_data_len < sizeof(struct pn533_target_type_b))
|
|
|
|
return false;
|
|
|
|
|
|
|
|
if (type_b->sensb_res.opcode != PN533_TYPE_B_OPC_SENSB_RES)
|
|
|
|
return false;
|
|
|
|
|
|
|
|
if (PN533_TYPE_B_PROT_TYPE(type_b->sensb_res.prot_info.fsci_type) &
|
|
|
|
PN533_TYPE_B_PROT_TYPE_RFU_MASK)
|
|
|
|
return false;
|
|
|
|
|
|
|
|
return true;
|
|
|
|
}
|
|
|
|
|
|
|
|
static int pn533_target_found_type_b(struct nfc_target *nfc_tgt, u8 *tgt_data,
|
|
|
|
int tgt_data_len)
|
|
|
|
{
|
|
|
|
struct pn533_target_type_b *tgt_type_b;
|
|
|
|
|
2012-12-10 20:42:50 +07:00
|
|
|
tgt_type_b = (struct pn533_target_type_b *)tgt_data;
|
2011-07-02 05:31:37 +07:00
|
|
|
|
|
|
|
if (!pn533_target_type_b_is_valid(tgt_type_b, tgt_data_len))
|
|
|
|
return -EPROTO;
|
|
|
|
|
2012-07-04 05:14:04 +07:00
|
|
|
nfc_tgt->supported_protocols = NFC_PROTO_ISO14443_B_MASK;
|
2011-07-02 05:31:37 +07:00
|
|
|
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
2012-12-10 20:42:48 +07:00
|
|
|
static int pn533_target_found(struct pn533 *dev, u8 tg, u8 *tgdata,
|
|
|
|
int tgdata_len)
|
2011-07-02 05:31:37 +07:00
|
|
|
{
|
|
|
|
struct nfc_target nfc_tgt;
|
|
|
|
int rc;
|
|
|
|
|
|
|
|
nfc_dev_dbg(&dev->interface->dev, "%s - modulation=%d", __func__,
|
2012-12-10 20:42:48 +07:00
|
|
|
dev->poll_mod_curr);
|
2011-07-02 05:31:37 +07:00
|
|
|
|
2012-12-10 20:42:48 +07:00
|
|
|
if (tg != 1)
|
2011-07-02 05:31:37 +07:00
|
|
|
return -EPROTO;
|
|
|
|
|
2012-03-05 07:03:39 +07:00
|
|
|
memset(&nfc_tgt, 0, sizeof(struct nfc_target));
|
|
|
|
|
2011-07-02 05:31:37 +07:00
|
|
|
switch (dev->poll_mod_curr) {
|
|
|
|
case PN533_POLL_MOD_106KBPS_A:
|
2012-12-10 20:42:48 +07:00
|
|
|
rc = pn533_target_found_type_a(&nfc_tgt, tgdata, tgdata_len);
|
2011-07-02 05:31:37 +07:00
|
|
|
break;
|
|
|
|
case PN533_POLL_MOD_212KBPS_FELICA:
|
|
|
|
case PN533_POLL_MOD_424KBPS_FELICA:
|
2012-12-10 20:42:48 +07:00
|
|
|
rc = pn533_target_found_felica(&nfc_tgt, tgdata, tgdata_len);
|
2011-07-02 05:31:37 +07:00
|
|
|
break;
|
|
|
|
case PN533_POLL_MOD_106KBPS_JEWEL:
|
2012-12-10 20:42:48 +07:00
|
|
|
rc = pn533_target_found_jewel(&nfc_tgt, tgdata, tgdata_len);
|
2011-07-02 05:31:37 +07:00
|
|
|
break;
|
|
|
|
case PN533_POLL_MOD_847KBPS_B:
|
2012-12-10 20:42:48 +07:00
|
|
|
rc = pn533_target_found_type_b(&nfc_tgt, tgdata, tgdata_len);
|
2011-07-02 05:31:37 +07:00
|
|
|
break;
|
|
|
|
default:
|
2012-12-10 20:42:48 +07:00
|
|
|
nfc_dev_err(&dev->interface->dev,
|
|
|
|
"Unknown current poll modulation");
|
2011-07-02 05:31:37 +07:00
|
|
|
return -EPROTO;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (rc)
|
|
|
|
return rc;
|
|
|
|
|
|
|
|
if (!(nfc_tgt.supported_protocols & dev->poll_protocols)) {
|
2012-12-10 20:42:48 +07:00
|
|
|
nfc_dev_dbg(&dev->interface->dev,
|
|
|
|
"The Tg found doesn't have the desired protocol");
|
2011-07-02 05:31:37 +07:00
|
|
|
return -EAGAIN;
|
|
|
|
}
|
|
|
|
|
2012-12-10 20:42:48 +07:00
|
|
|
nfc_dev_dbg(&dev->interface->dev,
|
|
|
|
"Target found - supported protocols: 0x%x",
|
|
|
|
nfc_tgt.supported_protocols);
|
2011-07-02 05:31:37 +07:00
|
|
|
|
|
|
|
dev->tgt_available_prots = nfc_tgt.supported_protocols;
|
|
|
|
|
|
|
|
nfc_targets_found(dev->nfc_dev, &nfc_tgt, 1);
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
2012-05-30 22:20:25 +07:00
|
|
|
static inline void pn533_poll_next_mod(struct pn533 *dev)
|
|
|
|
{
|
|
|
|
dev->poll_mod_curr = (dev->poll_mod_curr + 1) % dev->poll_mod_count;
|
|
|
|
}
|
|
|
|
|
2011-07-02 05:31:37 +07:00
|
|
|
static void pn533_poll_reset_mod_list(struct pn533 *dev)
|
|
|
|
{
|
|
|
|
dev->poll_mod_count = 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
static void pn533_poll_add_mod(struct pn533 *dev, u8 mod_index)
|
|
|
|
{
|
|
|
|
dev->poll_mod_active[dev->poll_mod_count] =
|
2012-12-10 20:42:50 +07:00
|
|
|
(struct pn533_poll_modulations *)&poll_mod[mod_index];
|
2011-07-02 05:31:37 +07:00
|
|
|
dev->poll_mod_count++;
|
|
|
|
}
|
|
|
|
|
2012-05-30 22:20:25 +07:00
|
|
|
static void pn533_poll_create_mod_list(struct pn533 *dev,
|
|
|
|
u32 im_protocols, u32 tm_protocols)
|
2011-07-02 05:31:37 +07:00
|
|
|
{
|
|
|
|
pn533_poll_reset_mod_list(dev);
|
|
|
|
|
2012-12-10 20:42:52 +07:00
|
|
|
if ((im_protocols & NFC_PROTO_MIFARE_MASK) ||
|
|
|
|
(im_protocols & NFC_PROTO_ISO14443_MASK) ||
|
|
|
|
(im_protocols & NFC_PROTO_NFC_DEP_MASK))
|
2011-07-02 05:31:37 +07:00
|
|
|
pn533_poll_add_mod(dev, PN533_POLL_MOD_106KBPS_A);
|
|
|
|
|
2012-12-10 20:42:52 +07:00
|
|
|
if (im_protocols & NFC_PROTO_FELICA_MASK ||
|
|
|
|
im_protocols & NFC_PROTO_NFC_DEP_MASK) {
|
2011-07-02 05:31:37 +07:00
|
|
|
pn533_poll_add_mod(dev, PN533_POLL_MOD_212KBPS_FELICA);
|
|
|
|
pn533_poll_add_mod(dev, PN533_POLL_MOD_424KBPS_FELICA);
|
|
|
|
}
|
|
|
|
|
2012-05-30 22:20:25 +07:00
|
|
|
if (im_protocols & NFC_PROTO_JEWEL_MASK)
|
2011-07-02 05:31:37 +07:00
|
|
|
pn533_poll_add_mod(dev, PN533_POLL_MOD_106KBPS_JEWEL);
|
|
|
|
|
2012-07-04 05:14:04 +07:00
|
|
|
if (im_protocols & NFC_PROTO_ISO14443_B_MASK)
|
2011-07-02 05:31:37 +07:00
|
|
|
pn533_poll_add_mod(dev, PN533_POLL_MOD_847KBPS_B);
|
|
|
|
|
2012-05-30 22:20:25 +07:00
|
|
|
if (tm_protocols)
|
|
|
|
pn533_poll_add_mod(dev, PN533_LISTEN_MOD);
|
2011-07-02 05:31:37 +07:00
|
|
|
}
|
|
|
|
|
2012-12-10 20:42:48 +07:00
|
|
|
static int pn533_start_poll_complete(struct pn533 *dev, struct sk_buff *resp)
|
2011-07-02 05:31:37 +07:00
|
|
|
{
|
2012-12-10 20:42:48 +07:00
|
|
|
u8 nbtg, tg, *tgdata;
|
|
|
|
int rc, tgdata_len;
|
2011-07-02 05:31:37 +07:00
|
|
|
|
|
|
|
nfc_dev_dbg(&dev->interface->dev, "%s", __func__);
|
|
|
|
|
2012-12-10 20:42:48 +07:00
|
|
|
nbtg = resp->data[0];
|
|
|
|
tg = resp->data[1];
|
|
|
|
tgdata = &resp->data[2];
|
|
|
|
tgdata_len = resp->len - 2; /* nbtg + tg */
|
|
|
|
|
|
|
|
if (nbtg) {
|
|
|
|
rc = pn533_target_found(dev, tg, tgdata, tgdata_len);
|
2011-07-02 05:31:37 +07:00
|
|
|
|
|
|
|
/* We must stop the poll after a valid target found */
|
2012-05-30 22:20:25 +07:00
|
|
|
if (rc == 0) {
|
|
|
|
pn533_poll_reset_mod_list(dev);
|
|
|
|
return 0;
|
|
|
|
}
|
2011-07-02 05:31:37 +07:00
|
|
|
}
|
|
|
|
|
2012-05-30 22:20:25 +07:00
|
|
|
return -EAGAIN;
|
2011-07-02 05:31:37 +07:00
|
|
|
}
|
|
|
|
|
2012-12-10 20:43:01 +07:00
|
|
|
static struct sk_buff *pn533_alloc_poll_tg_frame(struct pn533 *dev)
|
2012-05-31 04:54:55 +07:00
|
|
|
{
|
2012-12-10 20:42:48 +07:00
|
|
|
struct sk_buff *skb;
|
|
|
|
u8 *felica, *nfcid3, *gb;
|
|
|
|
|
2012-12-10 20:43:01 +07:00
|
|
|
u8 *gbytes = dev->gb;
|
|
|
|
size_t gbytes_len = dev->gb_len;
|
|
|
|
|
2012-05-30 06:48:46 +07:00
|
|
|
u8 felica_params[18] = {0x1, 0xfe, /* DEP */
|
|
|
|
0x0, 0x0, 0x0, 0x0, 0x0, 0x0, /* random */
|
|
|
|
0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0,
|
|
|
|
0xff, 0xff}; /* System code */
|
2012-12-10 20:42:48 +07:00
|
|
|
|
2012-05-30 06:48:46 +07:00
|
|
|
u8 mifare_params[6] = {0x1, 0x1, /* SENS_RES */
|
|
|
|
0x0, 0x0, 0x0,
|
|
|
|
0x40}; /* SEL_RES for DEP */
|
2012-05-31 04:54:55 +07:00
|
|
|
|
2012-12-10 20:42:48 +07:00
|
|
|
unsigned int skb_len = 36 + /* mode (1), mifare (6),
|
|
|
|
felica (18), nfcid3 (10), gb_len (1) */
|
|
|
|
gbytes_len +
|
|
|
|
1; /* len Tk*/
|
2012-05-31 04:54:55 +07:00
|
|
|
|
2012-12-10 20:43:01 +07:00
|
|
|
skb = pn533_alloc_skb(dev, skb_len);
|
2012-12-10 20:42:48 +07:00
|
|
|
if (!skb)
|
|
|
|
return NULL;
|
2012-05-31 04:54:55 +07:00
|
|
|
|
|
|
|
/* DEP support only */
|
2013-02-05 16:08:35 +07:00
|
|
|
*skb_put(skb, 1) = PN533_INIT_TARGET_DEP;
|
2012-12-10 20:42:48 +07:00
|
|
|
|
|
|
|
/* MIFARE params */
|
|
|
|
memcpy(skb_put(skb, 6), mifare_params, 6);
|
2012-05-30 06:48:46 +07:00
|
|
|
|
|
|
|
/* Felica params */
|
2012-12-10 20:42:48 +07:00
|
|
|
felica = skb_put(skb, 18);
|
|
|
|
memcpy(felica, felica_params, 18);
|
|
|
|
get_random_bytes(felica + 2, 6);
|
2012-05-30 06:48:46 +07:00
|
|
|
|
|
|
|
/* NFCID3 */
|
2012-12-10 20:42:48 +07:00
|
|
|
nfcid3 = skb_put(skb, 10);
|
|
|
|
memset(nfcid3, 0, 10);
|
|
|
|
memcpy(nfcid3, felica, 8);
|
2012-05-30 06:48:46 +07:00
|
|
|
|
|
|
|
/* General bytes */
|
2012-12-10 20:42:48 +07:00
|
|
|
*skb_put(skb, 1) = gbytes_len;
|
2012-05-30 06:48:46 +07:00
|
|
|
|
2012-12-10 20:42:48 +07:00
|
|
|
gb = skb_put(skb, gbytes_len);
|
|
|
|
memcpy(gb, gbytes, gbytes_len);
|
2012-05-31 04:54:55 +07:00
|
|
|
|
2012-12-10 20:42:48 +07:00
|
|
|
/* Len Tk */
|
|
|
|
*skb_put(skb, 1) = 0;
|
2012-05-30 06:48:46 +07:00
|
|
|
|
2012-12-10 20:42:48 +07:00
|
|
|
return skb;
|
2012-05-31 04:54:55 +07:00
|
|
|
}
|
|
|
|
|
2012-11-26 20:18:32 +07:00
|
|
|
#define PN533_CMD_DATAEXCH_HEAD_LEN 1
|
2012-05-31 05:07:51 +07:00
|
|
|
#define PN533_CMD_DATAEXCH_DATA_MAXLEN 262
|
|
|
|
static int pn533_tm_get_data_complete(struct pn533 *dev, void *arg,
|
2012-12-10 20:42:44 +07:00
|
|
|
struct sk_buff *resp)
|
2012-05-31 05:07:51 +07:00
|
|
|
{
|
2012-12-10 20:42:44 +07:00
|
|
|
u8 status;
|
2012-05-31 05:07:51 +07:00
|
|
|
|
|
|
|
nfc_dev_dbg(&dev->interface->dev, "%s", __func__);
|
|
|
|
|
2012-12-10 20:42:44 +07:00
|
|
|
if (IS_ERR(resp))
|
|
|
|
return PTR_ERR(resp);
|
2012-05-31 05:07:51 +07:00
|
|
|
|
2012-12-10 20:42:44 +07:00
|
|
|
status = resp->data[0];
|
|
|
|
skb_pull(resp, sizeof(status));
|
2012-05-31 05:07:51 +07:00
|
|
|
|
2012-12-10 20:42:44 +07:00
|
|
|
if (status != 0) {
|
2012-05-31 05:07:51 +07:00
|
|
|
nfc_tm_deactivated(dev->nfc_dev);
|
2012-06-01 01:01:32 +07:00
|
|
|
dev->tgt_mode = 0;
|
2012-12-10 20:42:44 +07:00
|
|
|
dev_kfree_skb(resp);
|
2012-05-31 05:07:51 +07:00
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
2012-12-10 20:42:44 +07:00
|
|
|
return nfc_tm_data_received(dev->nfc_dev, resp);
|
2012-05-31 05:07:51 +07:00
|
|
|
}
|
|
|
|
|
|
|
|
static void pn533_wq_tg_get_data(struct work_struct *work)
|
|
|
|
{
|
|
|
|
struct pn533 *dev = container_of(work, struct pn533, tg_work);
|
|
|
|
|
2012-12-10 20:42:44 +07:00
|
|
|
struct sk_buff *skb;
|
|
|
|
int rc;
|
2012-05-31 05:07:51 +07:00
|
|
|
|
2012-12-10 20:42:44 +07:00
|
|
|
nfc_dev_dbg(&dev->interface->dev, "%s", __func__);
|
2012-05-31 05:07:51 +07:00
|
|
|
|
2012-12-10 20:43:01 +07:00
|
|
|
skb = pn533_alloc_skb(dev, 0);
|
2012-12-10 20:42:44 +07:00
|
|
|
if (!skb)
|
2012-05-31 05:07:51 +07:00
|
|
|
return;
|
|
|
|
|
2012-12-10 20:42:44 +07:00
|
|
|
rc = pn533_send_data_async(dev, PN533_CMD_TG_GET_DATA, skb,
|
|
|
|
pn533_tm_get_data_complete, NULL);
|
2012-05-31 05:07:51 +07:00
|
|
|
|
2012-12-10 20:42:44 +07:00
|
|
|
if (rc < 0)
|
|
|
|
dev_kfree_skb(skb);
|
2012-05-31 05:07:51 +07:00
|
|
|
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
|
2012-06-01 18:21:13 +07:00
|
|
|
#define ATR_REQ_GB_OFFSET 17
|
2012-12-10 20:42:48 +07:00
|
|
|
static int pn533_init_target_complete(struct pn533 *dev, struct sk_buff *resp)
|
2012-05-15 20:57:06 +07:00
|
|
|
{
|
2012-12-10 20:42:48 +07:00
|
|
|
u8 mode, *cmd, comm_mode = NFC_COMM_PASSIVE, *gb;
|
2012-06-01 18:21:13 +07:00
|
|
|
size_t gb_len;
|
2012-05-31 05:07:51 +07:00
|
|
|
int rc;
|
2012-05-31 04:54:55 +07:00
|
|
|
|
|
|
|
nfc_dev_dbg(&dev->interface->dev, "%s", __func__);
|
|
|
|
|
2012-12-10 20:42:48 +07:00
|
|
|
if (resp->len < ATR_REQ_GB_OFFSET + 1)
|
2012-06-01 18:21:13 +07:00
|
|
|
return -EINVAL;
|
|
|
|
|
2012-12-10 20:42:48 +07:00
|
|
|
mode = resp->data[0];
|
|
|
|
cmd = &resp->data[1];
|
2012-05-31 04:54:55 +07:00
|
|
|
|
2012-12-10 20:42:48 +07:00
|
|
|
nfc_dev_dbg(&dev->interface->dev, "Target mode 0x%x len %d\n",
|
|
|
|
mode, resp->len);
|
2012-05-31 04:54:55 +07:00
|
|
|
|
2012-12-10 20:42:48 +07:00
|
|
|
if ((mode & PN533_INIT_TARGET_RESP_FRAME_MASK) ==
|
|
|
|
PN533_INIT_TARGET_RESP_ACTIVE)
|
2012-06-01 18:21:13 +07:00
|
|
|
comm_mode = NFC_COMM_ACTIVE;
|
|
|
|
|
2012-12-10 20:42:48 +07:00
|
|
|
if ((mode & PN533_INIT_TARGET_RESP_DEP) == 0) /* Only DEP supported */
|
2012-06-01 18:21:13 +07:00
|
|
|
return -EOPNOTSUPP;
|
|
|
|
|
2012-12-10 20:42:48 +07:00
|
|
|
gb = cmd + ATR_REQ_GB_OFFSET;
|
|
|
|
gb_len = resp->len - (ATR_REQ_GB_OFFSET + 1);
|
2012-06-01 18:21:13 +07:00
|
|
|
|
2012-05-31 05:07:51 +07:00
|
|
|
rc = nfc_tm_activated(dev->nfc_dev, NFC_PROTO_NFC_DEP_MASK,
|
|
|
|
comm_mode, gb, gb_len);
|
|
|
|
if (rc < 0) {
|
|
|
|
nfc_dev_err(&dev->interface->dev,
|
|
|
|
"Error when signaling target activation");
|
|
|
|
return rc;
|
|
|
|
}
|
|
|
|
|
2012-06-01 01:01:32 +07:00
|
|
|
dev->tgt_mode = 1;
|
2012-05-31 05:07:51 +07:00
|
|
|
queue_work(dev->wq, &dev->tg_work);
|
|
|
|
|
|
|
|
return 0;
|
2012-05-15 20:57:06 +07:00
|
|
|
}
|
|
|
|
|
2012-05-30 22:20:25 +07:00
|
|
|
static void pn533_listen_mode_timer(unsigned long data)
|
2012-05-31 04:54:55 +07:00
|
|
|
{
|
2012-12-10 20:42:50 +07:00
|
|
|
struct pn533 *dev = (struct pn533 *)data;
|
2012-05-30 22:20:25 +07:00
|
|
|
|
|
|
|
nfc_dev_dbg(&dev->interface->dev, "Listen mode timeout");
|
|
|
|
|
|
|
|
dev->cancel_listen = 1;
|
|
|
|
|
|
|
|
pn533_poll_next_mod(dev);
|
|
|
|
|
|
|
|
queue_work(dev->wq, &dev->poll_work);
|
|
|
|
}
|
|
|
|
|
|
|
|
static int pn533_poll_complete(struct pn533 *dev, void *arg,
|
2012-12-10 20:42:48 +07:00
|
|
|
struct sk_buff *resp)
|
2012-05-30 22:20:25 +07:00
|
|
|
{
|
|
|
|
struct pn533_poll_modulations *cur_mod;
|
2012-05-31 04:54:55 +07:00
|
|
|
int rc;
|
|
|
|
|
2012-05-30 22:20:25 +07:00
|
|
|
nfc_dev_dbg(&dev->interface->dev, "%s", __func__);
|
2012-05-31 04:54:55 +07:00
|
|
|
|
2012-12-10 20:42:48 +07:00
|
|
|
if (IS_ERR(resp)) {
|
|
|
|
rc = PTR_ERR(resp);
|
|
|
|
|
|
|
|
nfc_dev_err(&dev->interface->dev, "%s Poll complete error %d",
|
|
|
|
__func__, rc);
|
|
|
|
|
|
|
|
if (rc == -ENOENT) {
|
|
|
|
if (dev->poll_mod_count != 0)
|
|
|
|
return rc;
|
|
|
|
else
|
|
|
|
goto stop_poll;
|
|
|
|
} else if (rc < 0) {
|
|
|
|
nfc_dev_err(&dev->interface->dev,
|
|
|
|
"Error %d when running poll", rc);
|
|
|
|
goto stop_poll;
|
|
|
|
}
|
2012-05-30 22:20:25 +07:00
|
|
|
}
|
2012-05-31 04:54:55 +07:00
|
|
|
|
2012-05-30 22:20:25 +07:00
|
|
|
cur_mod = dev->poll_mod_active[dev->poll_mod_curr];
|
|
|
|
|
2012-12-10 20:42:48 +07:00
|
|
|
if (cur_mod->len == 0) { /* Target mode */
|
2012-05-30 22:20:25 +07:00
|
|
|
del_timer(&dev->listen_timer);
|
2012-12-10 20:42:48 +07:00
|
|
|
rc = pn533_init_target_complete(dev, resp);
|
|
|
|
goto done;
|
2012-05-30 22:20:25 +07:00
|
|
|
}
|
|
|
|
|
2012-12-10 20:42:48 +07:00
|
|
|
/* Initiator mode */
|
|
|
|
rc = pn533_start_poll_complete(dev, resp);
|
|
|
|
if (!rc)
|
|
|
|
goto done;
|
2012-05-30 22:20:25 +07:00
|
|
|
|
2013-04-03 13:02:00 +07:00
|
|
|
if (!dev->poll_mod_count) {
|
2013-05-21 21:13:12 +07:00
|
|
|
nfc_dev_dbg(&dev->interface->dev, "Polling has been stopped.");
|
2013-04-03 13:02:00 +07:00
|
|
|
goto done;
|
|
|
|
}
|
|
|
|
|
2012-12-10 20:42:48 +07:00
|
|
|
pn533_poll_next_mod(dev);
|
2012-05-30 22:20:25 +07:00
|
|
|
queue_work(dev->wq, &dev->poll_work);
|
|
|
|
|
2012-12-10 20:42:48 +07:00
|
|
|
done:
|
|
|
|
dev_kfree_skb(resp);
|
|
|
|
return rc;
|
2012-05-30 22:20:25 +07:00
|
|
|
|
|
|
|
stop_poll:
|
2012-12-10 20:42:48 +07:00
|
|
|
nfc_dev_err(&dev->interface->dev, "Polling operation has been stopped");
|
|
|
|
|
2012-05-30 22:20:25 +07:00
|
|
|
pn533_poll_reset_mod_list(dev);
|
|
|
|
dev->poll_protocols = 0;
|
2012-12-10 20:42:48 +07:00
|
|
|
return rc;
|
2012-05-31 04:54:55 +07:00
|
|
|
}
|
|
|
|
|
2012-12-10 20:43:01 +07:00
|
|
|
static struct sk_buff *pn533_alloc_poll_in_frame(struct pn533 *dev,
|
|
|
|
struct pn533_poll_modulations *mod)
|
2011-07-02 05:31:37 +07:00
|
|
|
{
|
2012-12-10 20:42:48 +07:00
|
|
|
struct sk_buff *skb;
|
2011-07-02 05:31:37 +07:00
|
|
|
|
2012-12-10 20:43:01 +07:00
|
|
|
skb = pn533_alloc_skb(dev, mod->len);
|
2012-12-10 20:42:48 +07:00
|
|
|
if (!skb)
|
|
|
|
return NULL;
|
2011-07-02 05:31:37 +07:00
|
|
|
|
2012-12-10 20:42:48 +07:00
|
|
|
memcpy(skb_put(skb, mod->len), &mod->data, mod->len);
|
2011-07-02 05:31:37 +07:00
|
|
|
|
2012-12-10 20:42:48 +07:00
|
|
|
return skb;
|
2012-05-30 22:20:25 +07:00
|
|
|
}
|
2011-07-02 05:31:37 +07:00
|
|
|
|
2012-05-30 22:20:25 +07:00
|
|
|
static int pn533_send_poll_frame(struct pn533 *dev)
|
|
|
|
{
|
2012-12-10 20:42:48 +07:00
|
|
|
struct pn533_poll_modulations *mod;
|
|
|
|
struct sk_buff *skb;
|
2012-05-30 22:20:25 +07:00
|
|
|
int rc;
|
2012-12-10 20:42:48 +07:00
|
|
|
u8 cmd_code;
|
2011-07-02 05:31:37 +07:00
|
|
|
|
2012-12-10 20:42:48 +07:00
|
|
|
mod = dev->poll_mod_active[dev->poll_mod_curr];
|
2011-07-02 05:31:37 +07:00
|
|
|
|
2012-12-10 20:42:48 +07:00
|
|
|
nfc_dev_dbg(&dev->interface->dev, "%s mod len %d\n",
|
|
|
|
__func__, mod->len);
|
2011-07-02 05:31:37 +07:00
|
|
|
|
2012-12-10 20:42:48 +07:00
|
|
|
if (mod->len == 0) { /* Listen mode */
|
|
|
|
cmd_code = PN533_CMD_TG_INIT_AS_TARGET;
|
2012-12-10 20:43:01 +07:00
|
|
|
skb = pn533_alloc_poll_tg_frame(dev);
|
2012-12-10 20:42:48 +07:00
|
|
|
} else { /* Polling mode */
|
|
|
|
cmd_code = PN533_CMD_IN_LIST_PASSIVE_TARGET;
|
2012-12-10 20:43:01 +07:00
|
|
|
skb = pn533_alloc_poll_in_frame(dev, mod);
|
2012-12-10 20:42:48 +07:00
|
|
|
}
|
|
|
|
|
|
|
|
if (!skb) {
|
|
|
|
nfc_dev_err(&dev->interface->dev, "Failed to allocate skb.");
|
|
|
|
return -ENOMEM;
|
|
|
|
}
|
|
|
|
|
|
|
|
rc = pn533_send_cmd_async(dev, cmd_code, skb, pn533_poll_complete,
|
|
|
|
NULL);
|
|
|
|
if (rc < 0) {
|
|
|
|
dev_kfree_skb(skb);
|
2012-05-30 22:20:25 +07:00
|
|
|
nfc_dev_err(&dev->interface->dev, "Polling loop error %d", rc);
|
2012-12-10 20:42:48 +07:00
|
|
|
}
|
2011-07-02 05:31:37 +07:00
|
|
|
|
2012-05-30 22:20:25 +07:00
|
|
|
return rc;
|
|
|
|
}
|
|
|
|
|
|
|
|
static void pn533_wq_poll(struct work_struct *work)
|
|
|
|
{
|
|
|
|
struct pn533 *dev = container_of(work, struct pn533, poll_work);
|
|
|
|
struct pn533_poll_modulations *cur_mod;
|
|
|
|
int rc;
|
|
|
|
|
|
|
|
cur_mod = dev->poll_mod_active[dev->poll_mod_curr];
|
|
|
|
|
|
|
|
nfc_dev_dbg(&dev->interface->dev,
|
|
|
|
"%s cancel_listen %d modulation len %d",
|
|
|
|
__func__, dev->cancel_listen, cur_mod->len);
|
|
|
|
|
|
|
|
if (dev->cancel_listen == 1) {
|
|
|
|
dev->cancel_listen = 0;
|
2013-04-03 13:02:14 +07:00
|
|
|
pn533_abort_cmd(dev, GFP_ATOMIC);
|
2011-07-02 05:31:37 +07:00
|
|
|
}
|
|
|
|
|
2012-05-30 22:20:25 +07:00
|
|
|
rc = pn533_send_poll_frame(dev);
|
|
|
|
if (rc)
|
|
|
|
return;
|
2011-07-02 05:31:37 +07:00
|
|
|
|
2012-05-30 22:20:25 +07:00
|
|
|
if (cur_mod->len == 0 && dev->poll_mod_count > 1)
|
|
|
|
mod_timer(&dev->listen_timer, jiffies + PN533_LISTEN_TIME * HZ);
|
2011-07-02 05:31:37 +07:00
|
|
|
|
2012-05-30 22:20:25 +07:00
|
|
|
return;
|
2011-07-02 05:31:37 +07:00
|
|
|
}
|
|
|
|
|
2012-05-15 20:57:06 +07:00
|
|
|
static int pn533_start_poll(struct nfc_dev *nfc_dev,
|
|
|
|
u32 im_protocols, u32 tm_protocols)
|
|
|
|
{
|
|
|
|
struct pn533 *dev = nfc_get_drvdata(nfc_dev);
|
|
|
|
|
|
|
|
nfc_dev_dbg(&dev->interface->dev,
|
|
|
|
"%s: im protocols 0x%x tm protocols 0x%x",
|
|
|
|
__func__, im_protocols, tm_protocols);
|
|
|
|
|
|
|
|
if (dev->tgt_active_prot) {
|
|
|
|
nfc_dev_err(&dev->interface->dev,
|
|
|
|
"Cannot poll with a target already activated");
|
|
|
|
return -EBUSY;
|
|
|
|
}
|
|
|
|
|
2012-06-01 01:01:32 +07:00
|
|
|
if (dev->tgt_mode) {
|
|
|
|
nfc_dev_err(&dev->interface->dev,
|
|
|
|
"Cannot poll while already being activated");
|
|
|
|
return -EBUSY;
|
|
|
|
}
|
|
|
|
|
2012-05-30 22:20:25 +07:00
|
|
|
if (tm_protocols) {
|
|
|
|
dev->gb = nfc_get_local_general_bytes(nfc_dev, &dev->gb_len);
|
|
|
|
if (dev->gb == NULL)
|
|
|
|
tm_protocols = 0;
|
|
|
|
}
|
2012-05-31 04:54:55 +07:00
|
|
|
|
2012-05-30 22:20:25 +07:00
|
|
|
dev->poll_mod_curr = 0;
|
|
|
|
pn533_poll_create_mod_list(dev, im_protocols, tm_protocols);
|
|
|
|
dev->poll_protocols = im_protocols;
|
|
|
|
dev->listen_protocols = tm_protocols;
|
2012-05-31 04:54:55 +07:00
|
|
|
|
2012-05-30 22:20:25 +07:00
|
|
|
return pn533_send_poll_frame(dev);
|
2012-05-15 20:57:06 +07:00
|
|
|
}
|
|
|
|
|
2011-07-02 05:31:37 +07:00
|
|
|
static void pn533_stop_poll(struct nfc_dev *nfc_dev)
|
|
|
|
{
|
|
|
|
struct pn533 *dev = nfc_get_drvdata(nfc_dev);
|
|
|
|
|
|
|
|
nfc_dev_dbg(&dev->interface->dev, "%s", __func__);
|
|
|
|
|
2012-05-30 22:20:25 +07:00
|
|
|
del_timer(&dev->listen_timer);
|
|
|
|
|
2011-07-02 05:31:37 +07:00
|
|
|
if (!dev->poll_mod_count) {
|
2012-12-10 20:42:49 +07:00
|
|
|
nfc_dev_dbg(&dev->interface->dev,
|
|
|
|
"Polling operation was not running");
|
2011-07-02 05:31:37 +07:00
|
|
|
return;
|
|
|
|
}
|
|
|
|
|
2013-04-03 13:02:14 +07:00
|
|
|
pn533_abort_cmd(dev, GFP_KERNEL);
|
2012-05-21 21:20:01 +07:00
|
|
|
pn533_poll_reset_mod_list(dev);
|
2011-07-02 05:31:37 +07:00
|
|
|
}
|
|
|
|
|
|
|
|
static int pn533_activate_target_nfcdep(struct pn533 *dev)
|
|
|
|
{
|
2012-11-26 20:18:38 +07:00
|
|
|
struct pn533_cmd_activate_response *rsp;
|
2011-12-14 22:43:10 +07:00
|
|
|
u16 gt_len;
|
2011-07-02 05:31:37 +07:00
|
|
|
int rc;
|
|
|
|
|
2012-11-26 20:18:38 +07:00
|
|
|
struct sk_buff *skb;
|
|
|
|
struct sk_buff *resp;
|
2011-07-02 05:31:37 +07:00
|
|
|
|
2012-11-26 20:18:38 +07:00
|
|
|
nfc_dev_dbg(&dev->interface->dev, "%s", __func__);
|
2011-07-02 05:31:37 +07:00
|
|
|
|
2012-12-10 20:43:01 +07:00
|
|
|
skb = pn533_alloc_skb(dev, sizeof(u8) * 2); /*TG + Next*/
|
2012-11-26 20:18:38 +07:00
|
|
|
if (!skb)
|
|
|
|
return -ENOMEM;
|
2011-07-02 05:31:37 +07:00
|
|
|
|
2012-11-26 20:18:38 +07:00
|
|
|
*skb_put(skb, sizeof(u8)) = 1; /* TG */
|
|
|
|
*skb_put(skb, sizeof(u8)) = 0; /* Next */
|
2011-07-02 05:31:37 +07:00
|
|
|
|
2012-11-26 20:18:38 +07:00
|
|
|
resp = pn533_send_cmd_sync(dev, PN533_CMD_IN_ATR, skb);
|
|
|
|
if (IS_ERR(resp))
|
|
|
|
return PTR_ERR(resp);
|
2011-07-02 05:31:37 +07:00
|
|
|
|
2012-12-10 20:42:50 +07:00
|
|
|
rsp = (struct pn533_cmd_activate_response *)resp->data;
|
2012-11-26 20:18:38 +07:00
|
|
|
rc = rsp->status & PN533_CMD_RET_MASK;
|
2012-12-21 16:39:01 +07:00
|
|
|
if (rc != PN533_CMD_RET_SUCCESS) {
|
2013-04-03 13:01:59 +07:00
|
|
|
nfc_dev_err(&dev->interface->dev,
|
|
|
|
"Target activation failed (error 0x%x)", rc);
|
2012-11-26 20:18:38 +07:00
|
|
|
dev_kfree_skb(resp);
|
2011-07-02 05:31:37 +07:00
|
|
|
return -EIO;
|
2012-12-21 16:39:01 +07:00
|
|
|
}
|
2011-07-02 05:31:37 +07:00
|
|
|
|
2011-12-14 22:43:10 +07:00
|
|
|
/* ATR_RES general bytes are located at offset 16 */
|
2012-11-26 20:18:38 +07:00
|
|
|
gt_len = resp->len - 16;
|
|
|
|
rc = nfc_set_remote_general_bytes(dev->nfc_dev, rsp->gt, gt_len);
|
2011-12-14 22:43:10 +07:00
|
|
|
|
2012-11-26 20:18:38 +07:00
|
|
|
dev_kfree_skb(resp);
|
2011-12-14 22:43:10 +07:00
|
|
|
return rc;
|
2011-07-02 05:31:37 +07:00
|
|
|
}
|
|
|
|
|
2012-05-07 17:31:13 +07:00
|
|
|
static int pn533_activate_target(struct nfc_dev *nfc_dev,
|
|
|
|
struct nfc_target *target, u32 protocol)
|
2011-07-02 05:31:37 +07:00
|
|
|
{
|
|
|
|
struct pn533 *dev = nfc_get_drvdata(nfc_dev);
|
|
|
|
int rc;
|
|
|
|
|
|
|
|
nfc_dev_dbg(&dev->interface->dev, "%s - protocol=%u", __func__,
|
2012-12-10 20:42:51 +07:00
|
|
|
protocol);
|
2011-07-02 05:31:37 +07:00
|
|
|
|
|
|
|
if (dev->poll_mod_count) {
|
2012-12-10 20:42:49 +07:00
|
|
|
nfc_dev_err(&dev->interface->dev,
|
|
|
|
"Cannot activate while polling");
|
2011-07-02 05:31:37 +07:00
|
|
|
return -EBUSY;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (dev->tgt_active_prot) {
|
2012-12-10 20:42:49 +07:00
|
|
|
nfc_dev_err(&dev->interface->dev,
|
|
|
|
"There is already an active target");
|
2011-07-02 05:31:37 +07:00
|
|
|
return -EBUSY;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (!dev->tgt_available_prots) {
|
2012-12-10 20:42:49 +07:00
|
|
|
nfc_dev_err(&dev->interface->dev,
|
|
|
|
"There is no available target to activate");
|
2011-07-02 05:31:37 +07:00
|
|
|
return -EINVAL;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (!(dev->tgt_available_prots & (1 << protocol))) {
|
2012-12-10 20:42:49 +07:00
|
|
|
nfc_dev_err(&dev->interface->dev,
|
|
|
|
"Target doesn't support requested proto %u",
|
|
|
|
protocol);
|
2011-07-02 05:31:37 +07:00
|
|
|
return -EINVAL;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (protocol == NFC_PROTO_NFC_DEP) {
|
|
|
|
rc = pn533_activate_target_nfcdep(dev);
|
|
|
|
if (rc) {
|
2012-12-10 20:42:49 +07:00
|
|
|
nfc_dev_err(&dev->interface->dev,
|
|
|
|
"Activating target with DEP failed %d", rc);
|
2011-07-02 05:31:37 +07:00
|
|
|
return rc;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
dev->tgt_active_prot = protocol;
|
|
|
|
dev->tgt_available_prots = 0;
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
2012-05-07 17:31:13 +07:00
|
|
|
static void pn533_deactivate_target(struct nfc_dev *nfc_dev,
|
|
|
|
struct nfc_target *target)
|
2011-07-02 05:31:37 +07:00
|
|
|
{
|
|
|
|
struct pn533 *dev = nfc_get_drvdata(nfc_dev);
|
2012-11-26 20:18:38 +07:00
|
|
|
|
|
|
|
struct sk_buff *skb;
|
|
|
|
struct sk_buff *resp;
|
|
|
|
|
2011-07-02 05:31:37 +07:00
|
|
|
int rc;
|
|
|
|
|
|
|
|
nfc_dev_dbg(&dev->interface->dev, "%s", __func__);
|
|
|
|
|
|
|
|
if (!dev->tgt_active_prot) {
|
|
|
|
nfc_dev_err(&dev->interface->dev, "There is no active target");
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
|
|
|
|
dev->tgt_active_prot = 0;
|
2012-04-11 00:43:18 +07:00
|
|
|
skb_queue_purge(&dev->resp_q);
|
|
|
|
|
2012-12-10 20:43:01 +07:00
|
|
|
skb = pn533_alloc_skb(dev, sizeof(u8));
|
2012-11-26 20:18:38 +07:00
|
|
|
if (!skb)
|
|
|
|
return;
|
2011-07-02 05:31:37 +07:00
|
|
|
|
2012-11-26 20:18:38 +07:00
|
|
|
*skb_put(skb, 1) = 1; /* TG*/
|
2011-07-02 05:31:37 +07:00
|
|
|
|
2012-11-26 20:18:38 +07:00
|
|
|
resp = pn533_send_cmd_sync(dev, PN533_CMD_IN_RELEASE, skb);
|
|
|
|
if (IS_ERR(resp))
|
2011-07-02 05:31:37 +07:00
|
|
|
return;
|
|
|
|
|
2012-11-26 20:18:38 +07:00
|
|
|
rc = resp->data[0] & PN533_CMD_RET_MASK;
|
2011-07-02 05:31:37 +07:00
|
|
|
if (rc != PN533_CMD_RET_SUCCESS)
|
2012-12-10 20:42:49 +07:00
|
|
|
nfc_dev_err(&dev->interface->dev,
|
|
|
|
"Error 0x%x when releasing the target", rc);
|
2011-07-02 05:31:37 +07:00
|
|
|
|
2012-11-26 20:18:38 +07:00
|
|
|
dev_kfree_skb(resp);
|
2011-07-02 05:31:37 +07:00
|
|
|
return;
|
|
|
|
}
|
|
|
|
|
2011-12-14 22:43:11 +07:00
|
|
|
|
|
|
|
static int pn533_in_dep_link_up_complete(struct pn533 *dev, void *arg,
|
2012-12-10 20:42:45 +07:00
|
|
|
struct sk_buff *resp)
|
2011-12-14 22:43:11 +07:00
|
|
|
{
|
2012-12-10 20:42:45 +07:00
|
|
|
struct pn533_cmd_jump_dep_response *rsp;
|
2011-12-14 22:43:11 +07:00
|
|
|
u8 target_gt_len;
|
|
|
|
int rc;
|
2012-12-10 20:42:45 +07:00
|
|
|
u8 active = *(u8 *)arg;
|
2012-10-11 19:04:00 +07:00
|
|
|
|
|
|
|
kfree(arg);
|
2011-12-14 22:43:11 +07:00
|
|
|
|
2012-12-10 20:42:45 +07:00
|
|
|
if (IS_ERR(resp))
|
|
|
|
return PTR_ERR(resp);
|
2011-12-14 22:43:11 +07:00
|
|
|
|
|
|
|
if (dev->tgt_available_prots &&
|
|
|
|
!(dev->tgt_available_prots & (1 << NFC_PROTO_NFC_DEP))) {
|
|
|
|
nfc_dev_err(&dev->interface->dev,
|
2012-12-10 20:42:51 +07:00
|
|
|
"The target does not support DEP");
|
2012-12-10 20:42:45 +07:00
|
|
|
rc = -EINVAL;
|
|
|
|
goto error;
|
2011-12-14 22:43:11 +07:00
|
|
|
}
|
|
|
|
|
2012-12-10 20:42:45 +07:00
|
|
|
rsp = (struct pn533_cmd_jump_dep_response *)resp->data;
|
|
|
|
|
|
|
|
rc = rsp->status & PN533_CMD_RET_MASK;
|
2011-12-14 22:43:11 +07:00
|
|
|
if (rc != PN533_CMD_RET_SUCCESS) {
|
|
|
|
nfc_dev_err(&dev->interface->dev,
|
2013-04-03 13:01:59 +07:00
|
|
|
"Bringing DEP link up failed (error 0x%x)", rc);
|
2012-12-10 20:42:45 +07:00
|
|
|
goto error;
|
2011-12-14 22:43:11 +07:00
|
|
|
}
|
|
|
|
|
|
|
|
if (!dev->tgt_available_prots) {
|
2012-12-10 20:42:45 +07:00
|
|
|
struct nfc_target nfc_target;
|
|
|
|
|
2011-12-14 22:43:11 +07:00
|
|
|
nfc_dev_dbg(&dev->interface->dev, "Creating new target");
|
|
|
|
|
|
|
|
nfc_target.supported_protocols = NFC_PROTO_NFC_DEP_MASK;
|
2012-03-05 07:03:47 +07:00
|
|
|
nfc_target.nfcid1_len = 10;
|
2012-12-10 20:42:45 +07:00
|
|
|
memcpy(nfc_target.nfcid1, rsp->nfcid3t, nfc_target.nfcid1_len);
|
2011-12-14 22:43:11 +07:00
|
|
|
rc = nfc_targets_found(dev->nfc_dev, &nfc_target, 1);
|
|
|
|
if (rc)
|
2012-12-10 20:42:45 +07:00
|
|
|
goto error;
|
2011-12-14 22:43:11 +07:00
|
|
|
|
|
|
|
dev->tgt_available_prots = 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
dev->tgt_active_prot = NFC_PROTO_NFC_DEP;
|
|
|
|
|
|
|
|
/* ATR_RES general bytes are located at offset 17 */
|
2012-12-10 20:42:45 +07:00
|
|
|
target_gt_len = resp->len - 17;
|
2011-12-14 22:43:11 +07:00
|
|
|
rc = nfc_set_remote_general_bytes(dev->nfc_dev,
|
2012-12-10 20:42:45 +07:00
|
|
|
rsp->gt, target_gt_len);
|
2011-12-14 22:43:11 +07:00
|
|
|
if (rc == 0)
|
|
|
|
rc = nfc_dep_link_is_up(dev->nfc_dev,
|
2012-12-10 20:42:45 +07:00
|
|
|
dev->nfc_dev->targets[0].idx,
|
|
|
|
!active, NFC_RF_INITIATOR);
|
2011-12-14 22:43:11 +07:00
|
|
|
|
2012-12-10 20:42:45 +07:00
|
|
|
error:
|
|
|
|
dev_kfree_skb(resp);
|
|
|
|
return rc;
|
2011-12-14 22:43:11 +07:00
|
|
|
}
|
|
|
|
|
2012-05-31 22:44:44 +07:00
|
|
|
static int pn533_mod_to_baud(struct pn533 *dev)
|
|
|
|
{
|
|
|
|
switch (dev->poll_mod_curr) {
|
|
|
|
case PN533_POLL_MOD_106KBPS_A:
|
|
|
|
return 0;
|
|
|
|
case PN533_POLL_MOD_212KBPS_FELICA:
|
|
|
|
return 1;
|
|
|
|
case PN533_POLL_MOD_424KBPS_FELICA:
|
|
|
|
return 2;
|
|
|
|
default:
|
|
|
|
return -EINVAL;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2012-05-30 02:45:21 +07:00
|
|
|
#define PASSIVE_DATA_LEN 5
|
2012-05-07 17:31:13 +07:00
|
|
|
static int pn533_dep_link_up(struct nfc_dev *nfc_dev, struct nfc_target *target,
|
2012-12-10 20:42:50 +07:00
|
|
|
u8 comm_mode, u8 *gb, size_t gb_len)
|
2011-12-14 22:43:11 +07:00
|
|
|
{
|
|
|
|
struct pn533 *dev = nfc_get_drvdata(nfc_dev);
|
2012-12-10 20:42:45 +07:00
|
|
|
struct sk_buff *skb;
|
|
|
|
int rc, baud, skb_len;
|
|
|
|
u8 *next, *arg;
|
|
|
|
|
2012-05-30 02:45:21 +07:00
|
|
|
u8 passive_data[PASSIVE_DATA_LEN] = {0x00, 0xff, 0xff, 0x00, 0x3};
|
2011-12-14 22:43:11 +07:00
|
|
|
|
|
|
|
nfc_dev_dbg(&dev->interface->dev, "%s", __func__);
|
|
|
|
|
|
|
|
if (dev->poll_mod_count) {
|
|
|
|
nfc_dev_err(&dev->interface->dev,
|
2012-12-10 20:42:51 +07:00
|
|
|
"Cannot bring the DEP link up while polling");
|
2011-12-14 22:43:11 +07:00
|
|
|
return -EBUSY;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (dev->tgt_active_prot) {
|
|
|
|
nfc_dev_err(&dev->interface->dev,
|
2012-12-10 20:42:51 +07:00
|
|
|
"There is already an active target");
|
2011-12-14 22:43:11 +07:00
|
|
|
return -EBUSY;
|
|
|
|
}
|
|
|
|
|
2012-05-31 22:44:44 +07:00
|
|
|
baud = pn533_mod_to_baud(dev);
|
|
|
|
if (baud < 0) {
|
|
|
|
nfc_dev_err(&dev->interface->dev,
|
|
|
|
"Invalid curr modulation %d", dev->poll_mod_curr);
|
|
|
|
return baud;
|
|
|
|
}
|
|
|
|
|
2012-12-10 20:42:45 +07:00
|
|
|
skb_len = 3 + gb_len; /* ActPass + BR + Next */
|
2012-05-30 02:45:21 +07:00
|
|
|
if (comm_mode == NFC_COMM_PASSIVE)
|
2012-12-10 20:42:45 +07:00
|
|
|
skb_len += PASSIVE_DATA_LEN;
|
2012-05-30 02:45:21 +07:00
|
|
|
|
2013-05-27 20:29:11 +07:00
|
|
|
if (target && target->nfcid2_len)
|
|
|
|
skb_len += NFC_NFCID3_MAXSIZE;
|
|
|
|
|
2012-12-10 20:43:01 +07:00
|
|
|
skb = pn533_alloc_skb(dev, skb_len);
|
2012-12-10 20:42:45 +07:00
|
|
|
if (!skb)
|
2011-12-14 22:43:11 +07:00
|
|
|
return -ENOMEM;
|
|
|
|
|
2012-12-10 20:42:45 +07:00
|
|
|
*skb_put(skb, 1) = !comm_mode; /* ActPass */
|
|
|
|
*skb_put(skb, 1) = baud; /* Baud rate */
|
|
|
|
|
|
|
|
next = skb_put(skb, 1); /* Next */
|
|
|
|
*next = 0;
|
2011-12-14 22:43:11 +07:00
|
|
|
|
2012-12-10 20:42:45 +07:00
|
|
|
if (comm_mode == NFC_COMM_PASSIVE && baud > 0) {
|
|
|
|
memcpy(skb_put(skb, PASSIVE_DATA_LEN), passive_data,
|
|
|
|
PASSIVE_DATA_LEN);
|
|
|
|
*next |= 1;
|
2012-05-30 02:45:21 +07:00
|
|
|
}
|
|
|
|
|
2013-05-27 20:29:11 +07:00
|
|
|
if (target && target->nfcid2_len) {
|
|
|
|
memcpy(skb_put(skb, NFC_NFCID3_MAXSIZE), target->nfcid2,
|
|
|
|
target->nfcid2_len);
|
|
|
|
*next |= 2;
|
|
|
|
}
|
|
|
|
|
2012-03-05 07:03:50 +07:00
|
|
|
if (gb != NULL && gb_len > 0) {
|
2012-12-10 20:42:45 +07:00
|
|
|
memcpy(skb_put(skb, gb_len), gb, gb_len);
|
|
|
|
*next |= 4; /* We have some Gi */
|
2011-12-14 22:43:11 +07:00
|
|
|
} else {
|
2012-12-10 20:42:45 +07:00
|
|
|
*next = 0;
|
2011-12-14 22:43:11 +07:00
|
|
|
}
|
|
|
|
|
2012-12-10 20:42:45 +07:00
|
|
|
arg = kmalloc(sizeof(*arg), GFP_KERNEL);
|
|
|
|
if (!arg) {
|
|
|
|
dev_kfree_skb(skb);
|
|
|
|
return -ENOMEM;
|
|
|
|
}
|
2011-12-14 22:43:11 +07:00
|
|
|
|
2012-12-10 20:42:45 +07:00
|
|
|
*arg = !comm_mode;
|
2011-12-14 22:43:11 +07:00
|
|
|
|
2012-12-10 20:42:45 +07:00
|
|
|
rc = pn533_send_cmd_async(dev, PN533_CMD_IN_JUMP_FOR_DEP, skb,
|
|
|
|
pn533_in_dep_link_up_complete, arg);
|
|
|
|
|
|
|
|
if (rc < 0) {
|
|
|
|
dev_kfree_skb(skb);
|
|
|
|
kfree(arg);
|
|
|
|
}
|
2011-12-14 22:43:11 +07:00
|
|
|
|
|
|
|
return rc;
|
|
|
|
}
|
|
|
|
|
|
|
|
static int pn533_dep_link_down(struct nfc_dev *nfc_dev)
|
|
|
|
{
|
2012-05-30 22:20:25 +07:00
|
|
|
struct pn533 *dev = nfc_get_drvdata(nfc_dev);
|
|
|
|
|
2012-12-10 20:42:55 +07:00
|
|
|
nfc_dev_dbg(&dev->interface->dev, "%s", __func__);
|
|
|
|
|
2012-05-30 22:20:25 +07:00
|
|
|
pn533_poll_reset_mod_list(dev);
|
|
|
|
|
2013-04-03 13:02:14 +07:00
|
|
|
if (dev->tgt_mode || dev->tgt_active_prot)
|
|
|
|
pn533_abort_cmd(dev, GFP_KERNEL);
|
2012-06-01 01:01:32 +07:00
|
|
|
|
|
|
|
dev->tgt_active_prot = 0;
|
|
|
|
dev->tgt_mode = 0;
|
|
|
|
|
|
|
|
skb_queue_purge(&dev->resp_q);
|
2011-12-14 22:43:11 +07:00
|
|
|
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
2011-07-02 05:31:37 +07:00
|
|
|
struct pn533_data_exchange_arg {
|
|
|
|
data_exchange_cb_t cb;
|
|
|
|
void *cb_context;
|
|
|
|
};
|
|
|
|
|
2012-04-11 00:43:18 +07:00
|
|
|
static struct sk_buff *pn533_build_response(struct pn533 *dev)
|
|
|
|
{
|
|
|
|
struct sk_buff *skb, *tmp, *t;
|
|
|
|
unsigned int skb_len = 0, tmp_len = 0;
|
|
|
|
|
2012-12-10 20:42:55 +07:00
|
|
|
nfc_dev_dbg(&dev->interface->dev, "%s", __func__);
|
2012-04-11 00:43:18 +07:00
|
|
|
|
|
|
|
if (skb_queue_empty(&dev->resp_q))
|
|
|
|
return NULL;
|
|
|
|
|
|
|
|
if (skb_queue_len(&dev->resp_q) == 1) {
|
|
|
|
skb = skb_dequeue(&dev->resp_q);
|
|
|
|
goto out;
|
|
|
|
}
|
|
|
|
|
|
|
|
skb_queue_walk_safe(&dev->resp_q, tmp, t)
|
|
|
|
skb_len += tmp->len;
|
|
|
|
|
|
|
|
nfc_dev_dbg(&dev->interface->dev, "%s total length %d\n",
|
|
|
|
__func__, skb_len);
|
|
|
|
|
|
|
|
skb = alloc_skb(skb_len, GFP_KERNEL);
|
|
|
|
if (skb == NULL)
|
|
|
|
goto out;
|
|
|
|
|
|
|
|
skb_put(skb, skb_len);
|
|
|
|
|
|
|
|
skb_queue_walk_safe(&dev->resp_q, tmp, t) {
|
|
|
|
memcpy(skb->data + tmp_len, tmp->data, tmp->len);
|
|
|
|
tmp_len += tmp->len;
|
|
|
|
}
|
|
|
|
|
|
|
|
out:
|
|
|
|
skb_queue_purge(&dev->resp_q);
|
|
|
|
|
|
|
|
return skb;
|
|
|
|
}
|
|
|
|
|
2011-07-02 05:31:37 +07:00
|
|
|
static int pn533_data_exchange_complete(struct pn533 *dev, void *_arg,
|
2012-12-10 20:42:46 +07:00
|
|
|
struct sk_buff *resp)
|
2011-07-02 05:31:37 +07:00
|
|
|
{
|
|
|
|
struct pn533_data_exchange_arg *arg = _arg;
|
2012-12-10 20:42:46 +07:00
|
|
|
struct sk_buff *skb;
|
|
|
|
int rc = 0;
|
|
|
|
u8 status, ret, mi;
|
2011-07-02 05:31:37 +07:00
|
|
|
|
|
|
|
nfc_dev_dbg(&dev->interface->dev, "%s", __func__);
|
|
|
|
|
2012-12-10 20:42:46 +07:00
|
|
|
if (IS_ERR(resp)) {
|
|
|
|
rc = PTR_ERR(resp);
|
|
|
|
goto _error;
|
2011-07-02 05:31:37 +07:00
|
|
|
}
|
|
|
|
|
2012-12-10 20:42:46 +07:00
|
|
|
status = resp->data[0];
|
|
|
|
ret = status & PN533_CMD_RET_MASK;
|
|
|
|
mi = status & PN533_CMD_MI_MASK;
|
|
|
|
|
|
|
|
skb_pull(resp, sizeof(status));
|
2011-07-02 05:31:37 +07:00
|
|
|
|
2012-12-10 20:42:46 +07:00
|
|
|
if (ret != PN533_CMD_RET_SUCCESS) {
|
|
|
|
nfc_dev_err(&dev->interface->dev,
|
2013-04-03 13:01:59 +07:00
|
|
|
"Exchanging data failed (error 0x%x)", ret);
|
2012-12-10 20:42:46 +07:00
|
|
|
rc = -EIO;
|
2011-07-02 05:31:37 +07:00
|
|
|
goto error;
|
|
|
|
}
|
|
|
|
|
2012-12-10 20:42:46 +07:00
|
|
|
skb_queue_tail(&dev->resp_q, resp);
|
2012-04-11 00:43:18 +07:00
|
|
|
|
2012-12-10 20:42:46 +07:00
|
|
|
if (mi) {
|
|
|
|
dev->cmd_complete_mi_arg = arg;
|
2012-04-11 00:43:18 +07:00
|
|
|
queue_work(dev->wq, &dev->mi_work);
|
|
|
|
return -EINPROGRESS;
|
2011-07-02 05:31:37 +07:00
|
|
|
}
|
|
|
|
|
2012-04-11 00:43:18 +07:00
|
|
|
skb = pn533_build_response(dev);
|
2012-12-10 20:42:46 +07:00
|
|
|
if (!skb)
|
2012-04-11 00:43:18 +07:00
|
|
|
goto error;
|
2011-07-02 05:31:37 +07:00
|
|
|
|
2012-04-11 00:43:18 +07:00
|
|
|
arg->cb(arg->cb_context, skb, 0);
|
2011-07-02 05:31:37 +07:00
|
|
|
kfree(arg);
|
|
|
|
return 0;
|
|
|
|
|
|
|
|
error:
|
2012-12-10 20:42:46 +07:00
|
|
|
dev_kfree_skb(resp);
|
|
|
|
_error:
|
2012-04-11 00:43:18 +07:00
|
|
|
skb_queue_purge(&dev->resp_q);
|
2012-12-10 20:42:46 +07:00
|
|
|
arg->cb(arg->cb_context, NULL, rc);
|
2011-07-02 05:31:37 +07:00
|
|
|
kfree(arg);
|
2012-12-10 20:42:46 +07:00
|
|
|
return rc;
|
2011-07-02 05:31:37 +07:00
|
|
|
}
|
|
|
|
|
2012-05-16 20:55:48 +07:00
|
|
|
static int pn533_transceive(struct nfc_dev *nfc_dev,
|
|
|
|
struct nfc_target *target, struct sk_buff *skb,
|
|
|
|
data_exchange_cb_t cb, void *cb_context)
|
2011-07-02 05:31:37 +07:00
|
|
|
{
|
|
|
|
struct pn533 *dev = nfc_get_drvdata(nfc_dev);
|
2012-12-10 20:42:46 +07:00
|
|
|
struct pn533_data_exchange_arg *arg = NULL;
|
2011-07-02 05:31:37 +07:00
|
|
|
int rc;
|
|
|
|
|
|
|
|
nfc_dev_dbg(&dev->interface->dev, "%s", __func__);
|
|
|
|
|
2012-12-10 20:42:46 +07:00
|
|
|
if (skb->len > PN533_CMD_DATAEXCH_DATA_MAXLEN) {
|
|
|
|
/* TODO: Implement support to multi-part data exchange */
|
|
|
|
nfc_dev_err(&dev->interface->dev,
|
|
|
|
"Data length greater than the max allowed: %d",
|
|
|
|
PN533_CMD_DATAEXCH_DATA_MAXLEN);
|
|
|
|
rc = -ENOSYS;
|
|
|
|
goto error;
|
|
|
|
}
|
|
|
|
|
2011-07-02 05:31:37 +07:00
|
|
|
if (!dev->tgt_active_prot) {
|
2012-12-10 20:42:49 +07:00
|
|
|
nfc_dev_err(&dev->interface->dev,
|
|
|
|
"Can't exchange data if there is no active target");
|
2011-07-02 05:31:37 +07:00
|
|
|
rc = -EINVAL;
|
|
|
|
goto error;
|
|
|
|
}
|
|
|
|
|
2012-12-10 20:42:46 +07:00
|
|
|
arg = kmalloc(sizeof(*arg), GFP_KERNEL);
|
2011-07-02 05:31:37 +07:00
|
|
|
if (!arg) {
|
|
|
|
rc = -ENOMEM;
|
2012-12-10 20:42:46 +07:00
|
|
|
goto error;
|
2011-07-02 05:31:37 +07:00
|
|
|
}
|
|
|
|
|
|
|
|
arg->cb = cb;
|
|
|
|
arg->cb_context = cb_context;
|
|
|
|
|
2012-12-10 20:42:46 +07:00
|
|
|
switch (dev->device_type) {
|
|
|
|
case PN533_DEVICE_PASORI:
|
|
|
|
if (dev->tgt_active_prot == NFC_PROTO_FELICA) {
|
|
|
|
rc = pn533_send_data_async(dev, PN533_CMD_IN_COMM_THRU,
|
|
|
|
skb,
|
|
|
|
pn533_data_exchange_complete,
|
|
|
|
arg);
|
|
|
|
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
default:
|
|
|
|
*skb_push(skb, sizeof(u8)) = 1; /*TG*/
|
|
|
|
|
|
|
|
rc = pn533_send_data_async(dev, PN533_CMD_IN_DATA_EXCHANGE,
|
|
|
|
skb, pn533_data_exchange_complete,
|
|
|
|
arg);
|
|
|
|
|
|
|
|
break;
|
2011-07-02 05:31:37 +07:00
|
|
|
}
|
|
|
|
|
2012-12-10 20:42:46 +07:00
|
|
|
if (rc < 0) /* rc from send_async */
|
|
|
|
goto error;
|
|
|
|
|
2011-07-02 05:31:37 +07:00
|
|
|
return 0;
|
|
|
|
|
|
|
|
error:
|
2012-12-10 20:42:46 +07:00
|
|
|
kfree(arg);
|
|
|
|
dev_kfree_skb(skb);
|
2011-07-02 05:31:37 +07:00
|
|
|
return rc;
|
|
|
|
}
|
|
|
|
|
2012-05-31 05:09:11 +07:00
|
|
|
static int pn533_tm_send_complete(struct pn533 *dev, void *arg,
|
2012-12-10 20:42:44 +07:00
|
|
|
struct sk_buff *resp)
|
2012-05-31 05:09:11 +07:00
|
|
|
{
|
2012-12-10 20:42:44 +07:00
|
|
|
u8 status;
|
2012-11-16 00:24:28 +07:00
|
|
|
|
2012-05-31 05:09:11 +07:00
|
|
|
nfc_dev_dbg(&dev->interface->dev, "%s", __func__);
|
|
|
|
|
2012-12-10 20:42:44 +07:00
|
|
|
if (IS_ERR(resp))
|
|
|
|
return PTR_ERR(resp);
|
2012-11-16 00:24:28 +07:00
|
|
|
|
2012-12-10 20:42:44 +07:00
|
|
|
status = resp->data[0];
|
2012-05-31 05:09:11 +07:00
|
|
|
|
2012-12-10 20:42:44 +07:00
|
|
|
dev_kfree_skb(resp);
|
2012-05-31 05:09:11 +07:00
|
|
|
|
2012-12-10 20:42:44 +07:00
|
|
|
if (status != 0) {
|
2012-05-31 05:09:11 +07:00
|
|
|
nfc_tm_deactivated(dev->nfc_dev);
|
|
|
|
|
2012-06-01 01:01:32 +07:00
|
|
|
dev->tgt_mode = 0;
|
|
|
|
|
2012-05-31 05:09:11 +07:00
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
queue_work(dev->wq, &dev->tg_work);
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
static int pn533_tm_send(struct nfc_dev *nfc_dev, struct sk_buff *skb)
|
|
|
|
{
|
|
|
|
struct pn533 *dev = nfc_get_drvdata(nfc_dev);
|
|
|
|
int rc;
|
|
|
|
|
|
|
|
nfc_dev_dbg(&dev->interface->dev, "%s", __func__);
|
|
|
|
|
2012-12-10 20:42:44 +07:00
|
|
|
if (skb->len > PN533_CMD_DATAEXCH_DATA_MAXLEN) {
|
2012-05-31 05:09:11 +07:00
|
|
|
nfc_dev_err(&dev->interface->dev,
|
2012-12-10 20:42:44 +07:00
|
|
|
"Data length greater than the max allowed: %d",
|
|
|
|
PN533_CMD_DATAEXCH_DATA_MAXLEN);
|
|
|
|
return -ENOSYS;
|
2012-05-31 05:09:11 +07:00
|
|
|
}
|
|
|
|
|
2012-12-10 20:42:44 +07:00
|
|
|
rc = pn533_send_data_async(dev, PN533_CMD_TG_SET_DATA, skb,
|
|
|
|
pn533_tm_send_complete, NULL);
|
|
|
|
if (rc < 0)
|
|
|
|
dev_kfree_skb(skb);
|
2012-05-31 05:09:11 +07:00
|
|
|
|
|
|
|
return rc;
|
|
|
|
}
|
|
|
|
|
2012-04-11 00:43:18 +07:00
|
|
|
static void pn533_wq_mi_recv(struct work_struct *work)
|
|
|
|
{
|
|
|
|
struct pn533 *dev = container_of(work, struct pn533, mi_work);
|
2012-12-10 20:42:46 +07:00
|
|
|
|
|
|
|
struct sk_buff *skb;
|
2012-04-11 00:43:18 +07:00
|
|
|
int rc;
|
|
|
|
|
|
|
|
nfc_dev_dbg(&dev->interface->dev, "%s", __func__);
|
|
|
|
|
2012-12-10 20:43:01 +07:00
|
|
|
skb = pn533_alloc_skb(dev, PN533_CMD_DATAEXCH_HEAD_LEN);
|
2012-12-10 20:42:46 +07:00
|
|
|
if (!skb)
|
|
|
|
goto error;
|
2012-04-11 00:43:18 +07:00
|
|
|
|
2012-12-10 20:42:46 +07:00
|
|
|
switch (dev->device_type) {
|
|
|
|
case PN533_DEVICE_PASORI:
|
|
|
|
if (dev->tgt_active_prot == NFC_PROTO_FELICA) {
|
|
|
|
rc = pn533_send_cmd_direct_async(dev,
|
|
|
|
PN533_CMD_IN_COMM_THRU,
|
|
|
|
skb,
|
|
|
|
pn533_data_exchange_complete,
|
|
|
|
dev->cmd_complete_mi_arg);
|
2012-04-11 00:43:18 +07:00
|
|
|
|
2012-12-10 20:42:46 +07:00
|
|
|
break;
|
|
|
|
}
|
|
|
|
default:
|
|
|
|
*skb_put(skb, sizeof(u8)) = 1; /*TG*/
|
2012-04-11 00:43:18 +07:00
|
|
|
|
2012-12-10 20:42:46 +07:00
|
|
|
rc = pn533_send_cmd_direct_async(dev,
|
|
|
|
PN533_CMD_IN_DATA_EXCHANGE,
|
|
|
|
skb,
|
|
|
|
pn533_data_exchange_complete,
|
|
|
|
dev->cmd_complete_mi_arg);
|
2012-11-26 20:18:32 +07:00
|
|
|
|
2012-12-10 20:42:46 +07:00
|
|
|
break;
|
2012-04-11 00:43:18 +07:00
|
|
|
}
|
|
|
|
|
2012-12-10 20:42:46 +07:00
|
|
|
if (rc == 0) /* success */
|
2012-04-11 00:43:18 +07:00
|
|
|
return;
|
|
|
|
|
2012-12-10 20:42:46 +07:00
|
|
|
nfc_dev_err(&dev->interface->dev,
|
|
|
|
"Error %d when trying to perform data_exchange", rc);
|
2012-04-11 00:43:18 +07:00
|
|
|
|
2012-12-10 20:42:46 +07:00
|
|
|
dev_kfree_skb(skb);
|
2013-04-03 13:02:07 +07:00
|
|
|
kfree(dev->cmd_complete_mi_arg);
|
2012-04-11 00:43:18 +07:00
|
|
|
|
2012-12-10 20:42:46 +07:00
|
|
|
error:
|
2012-04-11 00:43:18 +07:00
|
|
|
pn533_send_ack(dev, GFP_KERNEL);
|
2012-08-18 04:47:54 +07:00
|
|
|
queue_work(dev->wq, &dev->cmd_work);
|
2012-04-11 00:43:18 +07:00
|
|
|
}
|
|
|
|
|
2011-07-02 05:31:37 +07:00
|
|
|
static int pn533_set_configuration(struct pn533 *dev, u8 cfgitem, u8 *cfgdata,
|
|
|
|
u8 cfgdata_len)
|
|
|
|
{
|
2012-11-26 20:18:38 +07:00
|
|
|
struct sk_buff *skb;
|
|
|
|
struct sk_buff *resp;
|
|
|
|
|
|
|
|
int skb_len;
|
2011-07-02 05:31:37 +07:00
|
|
|
|
|
|
|
nfc_dev_dbg(&dev->interface->dev, "%s", __func__);
|
|
|
|
|
2012-11-26 20:18:38 +07:00
|
|
|
skb_len = sizeof(cfgitem) + cfgdata_len; /* cfgitem + cfgdata */
|
2011-07-02 05:31:37 +07:00
|
|
|
|
2012-12-10 20:43:01 +07:00
|
|
|
skb = pn533_alloc_skb(dev, skb_len);
|
2012-11-26 20:18:38 +07:00
|
|
|
if (!skb)
|
|
|
|
return -ENOMEM;
|
2011-07-02 05:31:37 +07:00
|
|
|
|
2012-11-26 20:18:38 +07:00
|
|
|
*skb_put(skb, sizeof(cfgitem)) = cfgitem;
|
|
|
|
memcpy(skb_put(skb, cfgdata_len), cfgdata, cfgdata_len);
|
2011-07-02 05:31:37 +07:00
|
|
|
|
2012-11-26 20:18:38 +07:00
|
|
|
resp = pn533_send_cmd_sync(dev, PN533_CMD_RF_CONFIGURATION, skb);
|
|
|
|
if (IS_ERR(resp))
|
|
|
|
return PTR_ERR(resp);
|
2011-07-02 05:31:37 +07:00
|
|
|
|
2012-11-26 20:18:38 +07:00
|
|
|
dev_kfree_skb(resp);
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
static int pn533_get_firmware_version(struct pn533 *dev,
|
|
|
|
struct pn533_fw_version *fv)
|
|
|
|
{
|
|
|
|
struct sk_buff *skb;
|
|
|
|
struct sk_buff *resp;
|
|
|
|
|
2012-12-10 20:43:01 +07:00
|
|
|
skb = pn533_alloc_skb(dev, 0);
|
2012-11-26 20:18:38 +07:00
|
|
|
if (!skb)
|
|
|
|
return -ENOMEM;
|
|
|
|
|
|
|
|
resp = pn533_send_cmd_sync(dev, PN533_CMD_GET_FIRMWARE_VERSION, skb);
|
|
|
|
if (IS_ERR(resp))
|
|
|
|
return PTR_ERR(resp);
|
|
|
|
|
|
|
|
fv->ic = resp->data[0];
|
|
|
|
fv->ver = resp->data[1];
|
|
|
|
fv->rev = resp->data[2];
|
|
|
|
fv->support = resp->data[3];
|
|
|
|
|
|
|
|
dev_kfree_skb(resp);
|
|
|
|
return 0;
|
2011-07-02 05:31:37 +07:00
|
|
|
}
|
|
|
|
|
2013-04-03 13:02:02 +07:00
|
|
|
static int pn533_pasori_fw_reset(struct pn533 *dev)
|
2012-07-03 01:04:01 +07:00
|
|
|
{
|
2012-11-26 20:18:38 +07:00
|
|
|
struct sk_buff *skb;
|
|
|
|
struct sk_buff *resp;
|
2012-07-03 01:04:01 +07:00
|
|
|
|
|
|
|
nfc_dev_dbg(&dev->interface->dev, "%s", __func__);
|
|
|
|
|
2012-12-10 20:43:01 +07:00
|
|
|
skb = pn533_alloc_skb(dev, sizeof(u8));
|
2012-11-26 20:18:38 +07:00
|
|
|
if (!skb)
|
|
|
|
return -ENOMEM;
|
2012-07-03 01:04:01 +07:00
|
|
|
|
2012-11-26 20:18:38 +07:00
|
|
|
*skb_put(skb, sizeof(u8)) = 0x1;
|
2012-07-03 01:04:01 +07:00
|
|
|
|
2012-11-26 20:18:38 +07:00
|
|
|
resp = pn533_send_cmd_sync(dev, 0x18, skb);
|
|
|
|
if (IS_ERR(resp))
|
|
|
|
return PTR_ERR(resp);
|
2012-07-03 01:04:01 +07:00
|
|
|
|
2012-11-26 20:18:38 +07:00
|
|
|
dev_kfree_skb(resp);
|
2012-07-03 01:04:01 +07:00
|
|
|
|
2012-11-26 20:18:36 +07:00
|
|
|
return 0;
|
2012-07-03 01:04:01 +07:00
|
|
|
}
|
|
|
|
|
NFC: pn533: Add support for ACS ACR122U reader
ACS ACR122U is an USB NFC reader, PC/SC and CCID compilant, based
on NXP PN532 chip.
Internally, it's build of MCU, PN532 and an antenna. MCU makes the
device CCID and PC/SC compilant and provide USB connection.
In this achitecture, a host cannot talk directly to PN532 and must
rely on MCU. Luckily, MCU exposes pseud-APDU through PC/SC Escape
mechanism which let the host to transmit standard PN532 commands
directly to PN532 chip with some limitations.
The frame roughly looks like:
CCID header | APDU header | PN532 header
(pc_to_rdr_escape) | (pseudo apdu Direct Tramsmit) | (len, TFI, cmd, params)
Accordign to limitations, ACR122U does't provide any mechanism to
abort last issued command.
Signed-off-by: Waldemar Rymarkiewicz <waldemar.rymarkiewicz@tieto.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2013-04-03 13:02:13 +07:00
|
|
|
struct pn533_acr122_poweron_rdr_arg {
|
|
|
|
int rc;
|
|
|
|
struct completion done;
|
|
|
|
};
|
|
|
|
|
|
|
|
static void pn533_acr122_poweron_rdr_resp(struct urb *urb)
|
|
|
|
{
|
|
|
|
struct pn533_acr122_poweron_rdr_arg *arg = urb->context;
|
|
|
|
|
|
|
|
nfc_dev_dbg(&urb->dev->dev, "%s", __func__);
|
|
|
|
|
2013-06-03 17:02:29 +07:00
|
|
|
print_hex_dump_debug("ACR122 RX: ", DUMP_PREFIX_NONE, 16, 1,
|
NFC: pn533: Add support for ACS ACR122U reader
ACS ACR122U is an USB NFC reader, PC/SC and CCID compilant, based
on NXP PN532 chip.
Internally, it's build of MCU, PN532 and an antenna. MCU makes the
device CCID and PC/SC compilant and provide USB connection.
In this achitecture, a host cannot talk directly to PN532 and must
rely on MCU. Luckily, MCU exposes pseud-APDU through PC/SC Escape
mechanism which let the host to transmit standard PN532 commands
directly to PN532 chip with some limitations.
The frame roughly looks like:
CCID header | APDU header | PN532 header
(pc_to_rdr_escape) | (pseudo apdu Direct Tramsmit) | (len, TFI, cmd, params)
Accordign to limitations, ACR122U does't provide any mechanism to
abort last issued command.
Signed-off-by: Waldemar Rymarkiewicz <waldemar.rymarkiewicz@tieto.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2013-04-03 13:02:13 +07:00
|
|
|
urb->transfer_buffer, urb->transfer_buffer_length,
|
|
|
|
false);
|
|
|
|
|
|
|
|
arg->rc = urb->status;
|
|
|
|
complete(&arg->done);
|
|
|
|
}
|
|
|
|
|
|
|
|
static int pn533_acr122_poweron_rdr(struct pn533 *dev)
|
|
|
|
{
|
|
|
|
/* Power on th reader (CCID cmd) */
|
|
|
|
u8 cmd[10] = {PN533_ACR122_PC_TO_RDR_ICCPOWERON,
|
|
|
|
0, 0, 0, 0, 0, 0, 3, 0, 0};
|
|
|
|
u8 buf[255];
|
|
|
|
int rc;
|
|
|
|
void *cntx;
|
|
|
|
struct pn533_acr122_poweron_rdr_arg arg;
|
|
|
|
|
|
|
|
nfc_dev_dbg(&dev->interface->dev, "%s", __func__);
|
|
|
|
|
|
|
|
init_completion(&arg.done);
|
|
|
|
cntx = dev->in_urb->context; /* backup context */
|
|
|
|
|
|
|
|
dev->in_urb->transfer_buffer = buf;
|
|
|
|
dev->in_urb->transfer_buffer_length = 255;
|
|
|
|
dev->in_urb->complete = pn533_acr122_poweron_rdr_resp;
|
|
|
|
dev->in_urb->context = &arg;
|
|
|
|
|
|
|
|
dev->out_urb->transfer_buffer = cmd;
|
|
|
|
dev->out_urb->transfer_buffer_length = sizeof(cmd);
|
|
|
|
|
2013-06-03 17:02:29 +07:00
|
|
|
print_hex_dump_debug("ACR122 TX: ", DUMP_PREFIX_NONE, 16, 1,
|
NFC: pn533: Add support for ACS ACR122U reader
ACS ACR122U is an USB NFC reader, PC/SC and CCID compilant, based
on NXP PN532 chip.
Internally, it's build of MCU, PN532 and an antenna. MCU makes the
device CCID and PC/SC compilant and provide USB connection.
In this achitecture, a host cannot talk directly to PN532 and must
rely on MCU. Luckily, MCU exposes pseud-APDU through PC/SC Escape
mechanism which let the host to transmit standard PN532 commands
directly to PN532 chip with some limitations.
The frame roughly looks like:
CCID header | APDU header | PN532 header
(pc_to_rdr_escape) | (pseudo apdu Direct Tramsmit) | (len, TFI, cmd, params)
Accordign to limitations, ACR122U does't provide any mechanism to
abort last issued command.
Signed-off-by: Waldemar Rymarkiewicz <waldemar.rymarkiewicz@tieto.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2013-04-03 13:02:13 +07:00
|
|
|
cmd, sizeof(cmd), false);
|
|
|
|
|
|
|
|
rc = usb_submit_urb(dev->out_urb, GFP_KERNEL);
|
|
|
|
if (rc) {
|
|
|
|
nfc_dev_err(&dev->interface->dev,
|
|
|
|
"Reader power on cmd error %d", rc);
|
|
|
|
return rc;
|
|
|
|
}
|
|
|
|
|
|
|
|
rc = usb_submit_urb(dev->in_urb, GFP_KERNEL);
|
|
|
|
if (rc) {
|
|
|
|
nfc_dev_err(&dev->interface->dev,
|
|
|
|
"Can't submit for reader power on cmd response %d",
|
|
|
|
rc);
|
|
|
|
return rc;
|
|
|
|
}
|
|
|
|
|
|
|
|
wait_for_completion(&arg.done);
|
|
|
|
dev->in_urb->context = cntx; /* restore context */
|
|
|
|
|
|
|
|
return arg.rc;
|
|
|
|
}
|
|
|
|
|
2013-04-11 16:45:41 +07:00
|
|
|
static int pn533_rf_field(struct nfc_dev *nfc_dev, u8 rf)
|
|
|
|
{
|
|
|
|
struct pn533 *dev = nfc_get_drvdata(nfc_dev);
|
|
|
|
u8 rf_field = !!rf;
|
|
|
|
int rc;
|
|
|
|
|
|
|
|
rc = pn533_set_configuration(dev, PN533_CFGITEM_RF_FIELD,
|
|
|
|
(u8 *)&rf_field, 1);
|
|
|
|
if (rc) {
|
|
|
|
nfc_dev_err(&dev->interface->dev,
|
|
|
|
"Error on setting RF field");
|
|
|
|
return rc;
|
|
|
|
}
|
|
|
|
|
|
|
|
return rc;
|
|
|
|
}
|
|
|
|
|
|
|
|
int pn533_dev_up(struct nfc_dev *nfc_dev)
|
|
|
|
{
|
|
|
|
return pn533_rf_field(nfc_dev, 1);
|
|
|
|
}
|
|
|
|
|
|
|
|
int pn533_dev_down(struct nfc_dev *nfc_dev)
|
|
|
|
{
|
|
|
|
return pn533_rf_field(nfc_dev, 0);
|
|
|
|
}
|
|
|
|
|
2012-07-03 01:04:01 +07:00
|
|
|
static struct nfc_ops pn533_nfc_ops = {
|
2013-04-11 16:45:41 +07:00
|
|
|
.dev_up = pn533_dev_up,
|
|
|
|
.dev_down = pn533_dev_down,
|
2011-12-14 22:43:11 +07:00
|
|
|
.dep_link_up = pn533_dep_link_up,
|
|
|
|
.dep_link_down = pn533_dep_link_down,
|
2011-07-02 05:31:37 +07:00
|
|
|
.start_poll = pn533_start_poll,
|
|
|
|
.stop_poll = pn533_stop_poll,
|
|
|
|
.activate_target = pn533_activate_target,
|
|
|
|
.deactivate_target = pn533_deactivate_target,
|
2012-05-16 20:55:48 +07:00
|
|
|
.im_transceive = pn533_transceive,
|
2012-05-31 05:09:11 +07:00
|
|
|
.tm_send = pn533_tm_send,
|
2011-07-02 05:31:37 +07:00
|
|
|
};
|
|
|
|
|
2012-07-03 01:04:01 +07:00
|
|
|
static int pn533_setup(struct pn533 *dev)
|
|
|
|
{
|
|
|
|
struct pn533_config_max_retries max_retries;
|
|
|
|
struct pn533_config_timing timing;
|
|
|
|
u8 pasori_cfg[3] = {0x08, 0x01, 0x08};
|
|
|
|
int rc;
|
|
|
|
|
|
|
|
switch (dev->device_type) {
|
|
|
|
case PN533_DEVICE_STD:
|
|
|
|
max_retries.mx_rty_atr = PN533_CONFIG_MAX_RETRIES_ENDLESS;
|
|
|
|
max_retries.mx_rty_psl = 2;
|
|
|
|
max_retries.mx_rty_passive_act =
|
|
|
|
PN533_CONFIG_MAX_RETRIES_NO_RETRY;
|
|
|
|
|
|
|
|
timing.rfu = PN533_CONFIG_TIMING_102;
|
|
|
|
timing.atr_res_timeout = PN533_CONFIG_TIMING_204;
|
|
|
|
timing.dep_timeout = PN533_CONFIG_TIMING_409;
|
|
|
|
|
|
|
|
break;
|
|
|
|
|
|
|
|
case PN533_DEVICE_PASORI:
|
NFC: pn533: Add support for ACS ACR122U reader
ACS ACR122U is an USB NFC reader, PC/SC and CCID compilant, based
on NXP PN532 chip.
Internally, it's build of MCU, PN532 and an antenna. MCU makes the
device CCID and PC/SC compilant and provide USB connection.
In this achitecture, a host cannot talk directly to PN532 and must
rely on MCU. Luckily, MCU exposes pseud-APDU through PC/SC Escape
mechanism which let the host to transmit standard PN532 commands
directly to PN532 chip with some limitations.
The frame roughly looks like:
CCID header | APDU header | PN532 header
(pc_to_rdr_escape) | (pseudo apdu Direct Tramsmit) | (len, TFI, cmd, params)
Accordign to limitations, ACR122U does't provide any mechanism to
abort last issued command.
Signed-off-by: Waldemar Rymarkiewicz <waldemar.rymarkiewicz@tieto.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2013-04-03 13:02:13 +07:00
|
|
|
case PN533_DEVICE_ACR122U:
|
2012-07-03 01:04:01 +07:00
|
|
|
max_retries.mx_rty_atr = 0x2;
|
|
|
|
max_retries.mx_rty_psl = 0x1;
|
|
|
|
max_retries.mx_rty_passive_act =
|
|
|
|
PN533_CONFIG_MAX_RETRIES_NO_RETRY;
|
|
|
|
|
|
|
|
timing.rfu = PN533_CONFIG_TIMING_102;
|
|
|
|
timing.atr_res_timeout = PN533_CONFIG_TIMING_102;
|
|
|
|
timing.dep_timeout = PN533_CONFIG_TIMING_204;
|
|
|
|
|
|
|
|
break;
|
|
|
|
|
|
|
|
default:
|
|
|
|
nfc_dev_err(&dev->interface->dev, "Unknown device type %d\n",
|
|
|
|
dev->device_type);
|
|
|
|
return -EINVAL;
|
|
|
|
}
|
|
|
|
|
|
|
|
rc = pn533_set_configuration(dev, PN533_CFGITEM_MAX_RETRIES,
|
|
|
|
(u8 *)&max_retries, sizeof(max_retries));
|
|
|
|
if (rc) {
|
|
|
|
nfc_dev_err(&dev->interface->dev,
|
|
|
|
"Error on setting MAX_RETRIES config");
|
|
|
|
return rc;
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
rc = pn533_set_configuration(dev, PN533_CFGITEM_TIMING,
|
|
|
|
(u8 *)&timing, sizeof(timing));
|
|
|
|
if (rc) {
|
|
|
|
nfc_dev_err(&dev->interface->dev,
|
|
|
|
"Error on setting RF timings");
|
|
|
|
return rc;
|
|
|
|
}
|
|
|
|
|
|
|
|
switch (dev->device_type) {
|
|
|
|
case PN533_DEVICE_STD:
|
|
|
|
break;
|
|
|
|
|
|
|
|
case PN533_DEVICE_PASORI:
|
2013-04-03 13:02:02 +07:00
|
|
|
pn533_pasori_fw_reset(dev);
|
2012-07-03 01:04:01 +07:00
|
|
|
|
|
|
|
rc = pn533_set_configuration(dev, PN533_CFGITEM_PASORI,
|
|
|
|
pasori_cfg, 3);
|
|
|
|
if (rc) {
|
|
|
|
nfc_dev_err(&dev->interface->dev,
|
|
|
|
"Error while settings PASORI config");
|
|
|
|
return rc;
|
|
|
|
}
|
|
|
|
|
2013-04-03 13:02:02 +07:00
|
|
|
pn533_pasori_fw_reset(dev);
|
2012-07-03 01:04:01 +07:00
|
|
|
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
2011-07-02 05:31:37 +07:00
|
|
|
static int pn533_probe(struct usb_interface *interface,
|
|
|
|
const struct usb_device_id *id)
|
|
|
|
{
|
2012-11-26 20:18:38 +07:00
|
|
|
struct pn533_fw_version fw_ver;
|
2011-07-02 05:31:37 +07:00
|
|
|
struct pn533 *dev;
|
|
|
|
struct usb_host_interface *iface_desc;
|
|
|
|
struct usb_endpoint_descriptor *endpoint;
|
|
|
|
int in_endpoint = 0;
|
|
|
|
int out_endpoint = 0;
|
|
|
|
int rc = -ENOMEM;
|
|
|
|
int i;
|
|
|
|
u32 protocols;
|
|
|
|
|
|
|
|
dev = kzalloc(sizeof(*dev), GFP_KERNEL);
|
|
|
|
if (!dev)
|
|
|
|
return -ENOMEM;
|
|
|
|
|
|
|
|
dev->udev = usb_get_dev(interface_to_usbdev(interface));
|
|
|
|
dev->interface = interface;
|
2012-05-31 22:56:46 +07:00
|
|
|
mutex_init(&dev->cmd_lock);
|
2011-07-02 05:31:37 +07:00
|
|
|
|
|
|
|
iface_desc = interface->cur_altsetting;
|
|
|
|
for (i = 0; i < iface_desc->desc.bNumEndpoints; ++i) {
|
|
|
|
endpoint = &iface_desc->endpoint[i].desc;
|
|
|
|
|
2012-11-26 20:18:30 +07:00
|
|
|
if (!in_endpoint && usb_endpoint_is_bulk_in(endpoint))
|
2011-07-02 05:31:37 +07:00
|
|
|
in_endpoint = endpoint->bEndpointAddress;
|
|
|
|
|
2012-11-26 20:18:30 +07:00
|
|
|
if (!out_endpoint && usb_endpoint_is_bulk_out(endpoint))
|
2011-07-02 05:31:37 +07:00
|
|
|
out_endpoint = endpoint->bEndpointAddress;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (!in_endpoint || !out_endpoint) {
|
2012-12-10 20:42:49 +07:00
|
|
|
nfc_dev_err(&interface->dev,
|
|
|
|
"Could not find bulk-in or bulk-out endpoint");
|
2011-07-02 05:31:37 +07:00
|
|
|
rc = -ENODEV;
|
|
|
|
goto error;
|
|
|
|
}
|
|
|
|
|
|
|
|
dev->in_urb = usb_alloc_urb(0, GFP_KERNEL);
|
|
|
|
dev->out_urb = usb_alloc_urb(0, GFP_KERNEL);
|
|
|
|
|
2012-12-10 20:42:58 +07:00
|
|
|
if (!dev->in_urb || !dev->out_urb)
|
2011-07-02 05:31:37 +07:00
|
|
|
goto error;
|
|
|
|
|
|
|
|
usb_fill_bulk_urb(dev->in_urb, dev->udev,
|
2012-12-10 20:42:51 +07:00
|
|
|
usb_rcvbulkpipe(dev->udev, in_endpoint),
|
|
|
|
NULL, 0, NULL, dev);
|
2011-07-02 05:31:37 +07:00
|
|
|
usb_fill_bulk_urb(dev->out_urb, dev->udev,
|
2012-12-10 20:42:51 +07:00
|
|
|
usb_sndbulkpipe(dev->udev, out_endpoint),
|
|
|
|
NULL, 0, pn533_send_complete, dev);
|
2011-07-02 05:31:37 +07:00
|
|
|
|
2012-08-18 04:47:54 +07:00
|
|
|
INIT_WORK(&dev->cmd_work, pn533_wq_cmd);
|
|
|
|
INIT_WORK(&dev->cmd_complete_work, pn533_wq_cmd_complete);
|
2012-04-11 00:43:18 +07:00
|
|
|
INIT_WORK(&dev->mi_work, pn533_wq_mi_recv);
|
2012-05-31 05:07:51 +07:00
|
|
|
INIT_WORK(&dev->tg_work, pn533_wq_tg_get_data);
|
2012-05-30 22:20:25 +07:00
|
|
|
INIT_WORK(&dev->poll_work, pn533_wq_poll);
|
2012-08-23 06:28:46 +07:00
|
|
|
dev->wq = alloc_ordered_workqueue("pn533", 0);
|
2012-04-11 00:43:17 +07:00
|
|
|
if (dev->wq == NULL)
|
|
|
|
goto error;
|
2011-07-02 05:31:37 +07:00
|
|
|
|
2012-05-30 22:20:25 +07:00
|
|
|
init_timer(&dev->listen_timer);
|
|
|
|
dev->listen_timer.data = (unsigned long) dev;
|
|
|
|
dev->listen_timer.function = pn533_listen_mode_timer;
|
|
|
|
|
2012-04-11 00:43:18 +07:00
|
|
|
skb_queue_head_init(&dev->resp_q);
|
|
|
|
|
2012-08-18 04:47:54 +07:00
|
|
|
INIT_LIST_HEAD(&dev->cmd_queue);
|
|
|
|
|
2011-07-02 05:31:37 +07:00
|
|
|
usb_set_intfdata(interface, dev);
|
|
|
|
|
2012-12-10 20:43:01 +07:00
|
|
|
dev->ops = &pn533_std_frame_ops;
|
2011-07-02 05:31:37 +07:00
|
|
|
|
2013-04-03 13:02:12 +07:00
|
|
|
dev->protocol_type = PN533_PROTO_REQ_ACK_RESP;
|
2012-07-03 01:04:01 +07:00
|
|
|
dev->device_type = id->driver_info;
|
|
|
|
switch (dev->device_type) {
|
|
|
|
case PN533_DEVICE_STD:
|
|
|
|
protocols = PN533_ALL_PROTOCOLS;
|
|
|
|
break;
|
|
|
|
|
|
|
|
case PN533_DEVICE_PASORI:
|
|
|
|
protocols = PN533_NO_TYPE_B_PROTOCOLS;
|
|
|
|
break;
|
|
|
|
|
NFC: pn533: Add support for ACS ACR122U reader
ACS ACR122U is an USB NFC reader, PC/SC and CCID compilant, based
on NXP PN532 chip.
Internally, it's build of MCU, PN532 and an antenna. MCU makes the
device CCID and PC/SC compilant and provide USB connection.
In this achitecture, a host cannot talk directly to PN532 and must
rely on MCU. Luckily, MCU exposes pseud-APDU through PC/SC Escape
mechanism which let the host to transmit standard PN532 commands
directly to PN532 chip with some limitations.
The frame roughly looks like:
CCID header | APDU header | PN532 header
(pc_to_rdr_escape) | (pseudo apdu Direct Tramsmit) | (len, TFI, cmd, params)
Accordign to limitations, ACR122U does't provide any mechanism to
abort last issued command.
Signed-off-by: Waldemar Rymarkiewicz <waldemar.rymarkiewicz@tieto.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2013-04-03 13:02:13 +07:00
|
|
|
case PN533_DEVICE_ACR122U:
|
|
|
|
protocols = PN533_NO_TYPE_B_PROTOCOLS;
|
|
|
|
dev->ops = &pn533_acr122_frame_ops;
|
|
|
|
dev->protocol_type = PN533_PROTO_REQ_RESP,
|
|
|
|
|
|
|
|
rc = pn533_acr122_poweron_rdr(dev);
|
|
|
|
if (rc < 0) {
|
|
|
|
nfc_dev_err(&dev->interface->dev,
|
|
|
|
"Couldn't poweron the reader (error %d)",
|
|
|
|
rc);
|
|
|
|
goto destroy_wq;
|
|
|
|
}
|
|
|
|
break;
|
|
|
|
|
2012-07-03 01:04:01 +07:00
|
|
|
default:
|
|
|
|
nfc_dev_err(&dev->interface->dev, "Unknown device type %d\n",
|
|
|
|
dev->device_type);
|
|
|
|
rc = -EINVAL;
|
|
|
|
goto destroy_wq;
|
|
|
|
}
|
2011-07-02 05:31:37 +07:00
|
|
|
|
2012-12-10 20:43:01 +07:00
|
|
|
memset(&fw_ver, 0, sizeof(fw_ver));
|
|
|
|
rc = pn533_get_firmware_version(dev, &fw_ver);
|
|
|
|
if (rc < 0)
|
|
|
|
goto destroy_wq;
|
|
|
|
|
|
|
|
nfc_dev_info(&dev->interface->dev,
|
2013-06-03 17:02:29 +07:00
|
|
|
"NXP PN5%02X firmware ver %d.%d now attached",
|
|
|
|
fw_ver.ic, fw_ver.ver, fw_ver.rev);
|
2012-12-10 20:43:01 +07:00
|
|
|
|
|
|
|
|
2011-08-19 20:47:11 +07:00
|
|
|
dev->nfc_dev = nfc_allocate_device(&pn533_nfc_ops, protocols,
|
2012-12-10 20:43:01 +07:00
|
|
|
dev->ops->tx_header_len +
|
2011-08-19 20:47:11 +07:00
|
|
|
PN533_CMD_DATAEXCH_HEAD_LEN,
|
2012-12-10 20:43:01 +07:00
|
|
|
dev->ops->tx_tail_len);
|
2013-05-07 19:07:52 +07:00
|
|
|
if (!dev->nfc_dev) {
|
|
|
|
rc = -ENOMEM;
|
2012-04-11 00:43:17 +07:00
|
|
|
goto destroy_wq;
|
2013-05-07 19:07:52 +07:00
|
|
|
}
|
2011-07-02 05:31:37 +07:00
|
|
|
|
|
|
|
nfc_set_parent_dev(dev->nfc_dev, &interface->dev);
|
|
|
|
nfc_set_drvdata(dev->nfc_dev, dev);
|
|
|
|
|
|
|
|
rc = nfc_register_device(dev->nfc_dev);
|
|
|
|
if (rc)
|
|
|
|
goto free_nfc_dev;
|
|
|
|
|
2012-07-03 01:04:01 +07:00
|
|
|
rc = pn533_setup(dev);
|
|
|
|
if (rc)
|
2012-05-30 02:34:08 +07:00
|
|
|
goto unregister_nfc_dev;
|
|
|
|
|
2011-07-02 05:31:37 +07:00
|
|
|
return 0;
|
|
|
|
|
2012-05-30 02:28:58 +07:00
|
|
|
unregister_nfc_dev:
|
|
|
|
nfc_unregister_device(dev->nfc_dev);
|
|
|
|
|
2011-07-02 05:31:37 +07:00
|
|
|
free_nfc_dev:
|
|
|
|
nfc_free_device(dev->nfc_dev);
|
2012-05-30 02:28:58 +07:00
|
|
|
|
2012-04-11 00:43:17 +07:00
|
|
|
destroy_wq:
|
|
|
|
destroy_workqueue(dev->wq);
|
2011-07-02 05:31:37 +07:00
|
|
|
error:
|
|
|
|
usb_free_urb(dev->in_urb);
|
|
|
|
usb_free_urb(dev->out_urb);
|
2013-02-26 14:41:18 +07:00
|
|
|
usb_put_dev(dev->udev);
|
2011-07-02 05:31:37 +07:00
|
|
|
kfree(dev);
|
|
|
|
return rc;
|
|
|
|
}
|
|
|
|
|
|
|
|
static void pn533_disconnect(struct usb_interface *interface)
|
|
|
|
{
|
|
|
|
struct pn533 *dev;
|
2012-08-18 04:47:54 +07:00
|
|
|
struct pn533_cmd *cmd, *n;
|
2011-07-02 05:31:37 +07:00
|
|
|
|
|
|
|
dev = usb_get_intfdata(interface);
|
|
|
|
usb_set_intfdata(interface, NULL);
|
|
|
|
|
|
|
|
nfc_unregister_device(dev->nfc_dev);
|
|
|
|
nfc_free_device(dev->nfc_dev);
|
|
|
|
|
|
|
|
usb_kill_urb(dev->in_urb);
|
|
|
|
usb_kill_urb(dev->out_urb);
|
|
|
|
|
2012-04-11 00:43:17 +07:00
|
|
|
destroy_workqueue(dev->wq);
|
2011-07-02 05:31:37 +07:00
|
|
|
|
2012-04-11 00:43:18 +07:00
|
|
|
skb_queue_purge(&dev->resp_q);
|
|
|
|
|
2012-05-30 22:20:25 +07:00
|
|
|
del_timer(&dev->listen_timer);
|
|
|
|
|
2012-08-18 04:47:54 +07:00
|
|
|
list_for_each_entry_safe(cmd, n, &dev->cmd_queue, queue) {
|
|
|
|
list_del(&cmd->queue);
|
|
|
|
kfree(cmd);
|
|
|
|
}
|
|
|
|
|
2011-07-02 05:31:37 +07:00
|
|
|
usb_free_urb(dev->in_urb);
|
|
|
|
usb_free_urb(dev->out_urb);
|
|
|
|
kfree(dev);
|
|
|
|
|
2011-07-08 14:21:15 +07:00
|
|
|
nfc_dev_info(&interface->dev, "NXP PN533 NFC device disconnected");
|
2011-07-02 05:31:37 +07:00
|
|
|
}
|
|
|
|
|
|
|
|
static struct usb_driver pn533_driver = {
|
|
|
|
.name = "pn533",
|
|
|
|
.probe = pn533_probe,
|
|
|
|
.disconnect = pn533_disconnect,
|
|
|
|
.id_table = pn533_table,
|
|
|
|
};
|
|
|
|
|
2011-11-19 00:52:10 +07:00
|
|
|
module_usb_driver(pn533_driver);
|
2011-07-02 05:31:37 +07:00
|
|
|
|
2013-04-03 13:02:01 +07:00
|
|
|
MODULE_AUTHOR("Lauro Ramos Venancio <lauro.venancio@openbossa.org>");
|
|
|
|
MODULE_AUTHOR("Aloisio Almeida Jr <aloisio.almeida@openbossa.org>");
|
|
|
|
MODULE_AUTHOR("Waldemar Rymarkiewicz <waldemar.rymarkiewicz@tieto.com>");
|
2011-07-02 05:31:37 +07:00
|
|
|
MODULE_DESCRIPTION("PN533 usb driver ver " VERSION);
|
|
|
|
MODULE_VERSION(VERSION);
|
|
|
|
MODULE_LICENSE("GPL");
|