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-rw-r--r--drivers/nfc/Kconfig11
-rw-r--r--drivers/nfc/Makefile2
-rw-r--r--drivers/nfc/pn533/Kconfig16
-rw-r--r--drivers/nfc/pn533/Makefile7
-rw-r--r--drivers/nfc/pn533/pn533.c (renamed from drivers/nfc/pn533.c)1136
-rw-r--r--drivers/nfc/pn533/pn533.h235
-rw-r--r--drivers/nfc/pn533/usb.c598
7 files changed, 1081 insertions, 924 deletions
diff --git a/drivers/nfc/Kconfig b/drivers/nfc/Kconfig
index 7437c9dfd8fc..ea8321a483f9 100644
--- a/drivers/nfc/Kconfig
+++ b/drivers/nfc/Kconfig
@@ -5,16 +5,6 @@
menu "Near Field Communication (NFC) devices"
depends on NFC
-config NFC_PN533
- tristate "NXP PN533 USB driver"
- depends on USB
- help
- NXP PN533 USB driver.
- This driver provides support for NFC NXP PN533 devices.
-
- Say Y here to compile support for PN533 devices into the
- kernel or say M to compile it as module (pn533).
-
config NFC_WILINK
tristate "Texas Instruments NFC WiLink driver"
depends on TI_ST && NFC_NCI
@@ -70,6 +60,7 @@ config NFC_PORT100
source "drivers/nfc/fdp/Kconfig"
source "drivers/nfc/pn544/Kconfig"
+source "drivers/nfc/pn533/Kconfig"
source "drivers/nfc/microread/Kconfig"
source "drivers/nfc/nfcmrvl/Kconfig"
source "drivers/nfc/st21nfca/Kconfig"
diff --git a/drivers/nfc/Makefile b/drivers/nfc/Makefile
index 0a99e67daa10..bab8ef06ae35 100644
--- a/drivers/nfc/Makefile
+++ b/drivers/nfc/Makefile
@@ -5,7 +5,7 @@
obj-$(CONFIG_NFC_FDP) += fdp/
obj-$(CONFIG_NFC_PN544) += pn544/
obj-$(CONFIG_NFC_MICROREAD) += microread/
-obj-$(CONFIG_NFC_PN533) += pn533.o
+obj-$(CONFIG_NFC_PN533) += pn533/
obj-$(CONFIG_NFC_WILINK) += nfcwilink.o
obj-$(CONFIG_NFC_MEI_PHY) += mei_phy.o
obj-$(CONFIG_NFC_SIM) += nfcsim.o
diff --git a/drivers/nfc/pn533/Kconfig b/drivers/nfc/pn533/Kconfig
new file mode 100644
index 000000000000..b5a926e42f7b
--- /dev/null
+++ b/drivers/nfc/pn533/Kconfig
@@ -0,0 +1,16 @@
+config NFC_PN533
+ tristate
+ help
+ NXP PN533 core driver.
+ This driver provides core functionality for NXP PN533 NFC devices.
+
+config NFC_PN533_USB
+ tristate "NFC PN533 device support (USB)"
+ depends on USB
+ select NFC_PN533
+ ---help---
+ This module adds support for the NXP pn533 USB interface.
+ Select this if your platform is using the USB bus.
+
+ If you choose to build a module, it'll be called pn533_usb.
+ Say N if unsure.
diff --git a/drivers/nfc/pn533/Makefile b/drivers/nfc/pn533/Makefile
new file mode 100644
index 000000000000..12c6be481483
--- /dev/null
+++ b/drivers/nfc/pn533/Makefile
@@ -0,0 +1,7 @@
+#
+# Makefile for PN533 NFC driver
+#
+pn533_usb-objs = usb.o
+
+obj-$(CONFIG_NFC_PN533) += pn533.o
+obj-$(CONFIG_NFC_PN533_USB) += pn533_usb.o
diff --git a/drivers/nfc/pn533.c b/drivers/nfc/pn533/pn533.c
index 074f1e42e378..52d83fec5add 100644
--- a/drivers/nfc/pn533.c
+++ b/drivers/nfc/pn533/pn533.c
@@ -1,4 +1,6 @@
/*
+ * Driver for NXP PN533 NFC Chip - core functions
+ *
* Copyright (C) 2011 Instituto Nokia de Tecnologia
* Copyright (C) 2012-2013 Tieto Poland
*
@@ -20,137 +22,18 @@
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/slab.h>
-#include <linux/usb.h>
#include <linux/nfc.h>
#include <linux/netdevice.h>
#include <net/nfc/nfc.h>
+#include "pn533.h"
-#define VERSION "0.2"
-
-#define PN533_VENDOR_ID 0x4CC
-#define PN533_PRODUCT_ID 0x2533
-
-#define SCM_VENDOR_ID 0x4E6
-#define SCL3711_PRODUCT_ID 0x5591
-
-#define SONY_VENDOR_ID 0x054c
-#define PASORI_PRODUCT_ID 0x02e1
-
-#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
-
-#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)
-
-#define PN533_NO_TYPE_B_PROTOCOLS (NFC_PROTO_JEWEL_MASK | \
- NFC_PROTO_MIFARE_MASK | \
- NFC_PROTO_FELICA_MASK | \
- NFC_PROTO_ISO14443_MASK | \
- NFC_PROTO_NFC_DEP_MASK)
-
-static const struct usb_device_id pn533_table[] = {
- { USB_DEVICE(PN533_VENDOR_ID, PN533_PRODUCT_ID),
- .driver_info = PN533_DEVICE_STD },
- { USB_DEVICE(SCM_VENDOR_ID, SCL3711_PRODUCT_ID),
- .driver_info = PN533_DEVICE_STD },
- { USB_DEVICE(SONY_VENDOR_ID, PASORI_PRODUCT_ID),
- .driver_info = PN533_DEVICE_PASORI },
- { USB_DEVICE(ACS_VENDOR_ID, ACR122U_PRODUCT_ID),
- .driver_info = PN533_DEVICE_ACR122U },
- { }
-};
-MODULE_DEVICE_TABLE(usb, pn533_table);
+#define VERSION "0.3"
/* How much time we spend listening for initiators */
#define PN533_LISTEN_TIME 2
/* Delay between each poll frame (ms) */
#define PN533_POLL_INTERVAL 10
-/* Standard pn533 frame definitions (standard and extended)*/
-#define PN533_STD_FRAME_HEADER_LEN (sizeof(struct pn533_std_frame) \
- + 2) /* data[0] TFI, data[1] CC */
-#define PN533_STD_FRAME_TAIL_LEN 2 /* data[len] DCS, data[len + 1] postamble*/
-
-#define PN533_EXT_FRAME_HEADER_LEN (sizeof(struct pn533_ext_frame) \
- + 2) /* data[0] TFI, data[1] CC */
-
-#define PN533_CMD_DATAEXCH_DATA_MAXLEN 262
-#define PN533_CMD_DATAFRAME_MAXLEN 240 /* max data length (send) */
-
-/*
- * Max extended frame payload len, excluding TFI and CC
- * which are already in PN533_FRAME_HEADER_LEN.
- */
-#define PN533_STD_FRAME_MAX_PAYLOAD_LEN 263
-
-#define PN533_STD_FRAME_ACK_SIZE 6 /* Preamble (1), SoPC (2), ACK Code (2),
- Postamble (1) */
-#define PN533_STD_FRAME_CHECKSUM(f) (f->data[f->datalen])
-#define PN533_STD_FRAME_POSTAMBLE(f) (f->data[f->datalen + 1])
-/* Half start code (3), LEN (4) should be 0xffff for extended frame */
-#define PN533_STD_IS_EXTENDED(hdr) ((hdr)->datalen == 0xFF \
- && (hdr)->datalen_checksum == 0xFF)
-#define PN533_EXT_FRAME_CHECKSUM(f) (f->data[be16_to_cpu(f->datalen)])
-
-/* start of frame */
-#define PN533_STD_FRAME_SOF 0x00FF
-
-/* 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
-
-/* 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
-
-/* PN533 Commands */
-#define PN533_FRAME_CMD(f) (f->data[1])
-
-#define PN533_CMD_GET_FIRMWARE_VERSION 0x02
-#define PN533_CMD_RF_CONFIGURATION 0x32
-#define PN533_CMD_IN_DATA_EXCHANGE 0x40
-#define PN533_CMD_IN_COMM_THRU 0x42
-#define PN533_CMD_IN_LIST_PASSIVE_TARGET 0x4A
-#define PN533_CMD_IN_ATR 0x50
-#define PN533_CMD_IN_RELEASE 0x52
-#define PN533_CMD_IN_JUMP_FOR_DEP 0x56
-
-#define PN533_CMD_TG_INIT_AS_TARGET 0x8c
-#define PN533_CMD_TG_GET_DATA 0x86
-#define PN533_CMD_TG_SET_DATA 0x8e
-#define PN533_CMD_TG_SET_META_DATA 0x94
-#define PN533_CMD_UNDEF 0xff
-
-#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;
-
-typedef int (*pn533_send_async_complete_t) (struct pn533 *dev, void *arg,
- struct sk_buff *resp);
-
/* structs for pn533 commands */
/* PN533_CMD_GET_FIRMWARE_VERSION */
@@ -220,19 +103,6 @@ union pn533_cmd_poll_initdata {
} __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,
- PN533_LISTEN_MOD,
-
- __PN533_POLL_MOD_AFTER_LAST,
-};
-#define PN533_POLL_MOD_MAX (__PN533_POLL_MOD_AFTER_LAST - 1)
-
struct pn533_poll_modulations {
struct {
u8 maxtg;
@@ -336,219 +206,6 @@ struct pn533_cmd_jump_dep_response {
#define PN533_INIT_TARGET_RESP_ACTIVE 0x1
#define PN533_INIT_TARGET_RESP_DEP 0x4
-enum pn533_protocol_type {
- PN533_PROTO_REQ_ACK_RESP = 0,
- PN533_PROTO_REQ_RESP
-};
-
-struct pn533 {
- struct usb_device *udev;
- struct usb_interface *interface;
- struct nfc_dev *nfc_dev;
- u32 device_type;
- enum pn533_protocol_type protocol_type;
-
- struct urb *out_urb;
- struct urb *in_urb;
-
- struct sk_buff_head resp_q;
- struct sk_buff_head fragment_skb;
-
- struct workqueue_struct *wq;
- struct work_struct cmd_work;
- struct work_struct cmd_complete_work;
- struct delayed_work poll_work;
- struct work_struct mi_rx_work;
- struct work_struct mi_tx_work;
- struct work_struct mi_tm_rx_work;
- struct work_struct mi_tm_tx_work;
- struct work_struct tg_work;
- struct work_struct rf_work;
-
- struct list_head cmd_queue;
- struct pn533_cmd *cmd;
- u8 cmd_pending;
- struct mutex cmd_lock; /* protects cmd queue */
-
- void *cmd_complete_mi_arg;
- void *cmd_complete_dep_arg;
-
- struct pn533_poll_modulations *poll_mod_active[PN533_POLL_MOD_MAX + 1];
- u8 poll_mod_count;
- u8 poll_mod_curr;
- u8 poll_dep;
- u32 poll_protocols;
- u32 listen_protocols;
- struct timer_list listen_timer;
- int cancel_listen;
-
- u8 *gb;
- size_t gb_len;
-
- u8 tgt_available_prots;
- u8 tgt_active_prot;
- u8 tgt_mode;
-
- struct pn533_frame_ops *ops;
-};
-
-struct pn533_cmd {
- struct list_head queue;
- u8 code;
- int status;
- struct sk_buff *req;
- struct sk_buff *resp;
- int resp_len;
- pn533_send_async_complete_t complete_cb;
- void *complete_cb_context;
-};
-
-struct pn533_std_frame {
- u8 preamble;
- __be16 start_frame;
- u8 datalen;
- u8 datalen_checksum;
- u8 data[];
-} __packed;
-
-struct pn533_ext_frame { /* Extended Information frame */
- u8 preamble;
- __be16 start_frame;
- __be16 eif_flag; /* fixed to 0xFFFF */
- __be16 datalen;
- u8 datalen_checksum;
- u8 data[];
-} __packed;
-
-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, struct pn533 *dev);
- int (*rx_frame_size)(void *frame);
- int rx_header_len;
- int rx_tail_len;
-
- int max_payload_len;
- u8 (*get_cmd_code)(void *frame);
-};
-
-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 *dev)
-{
- struct pn533_acr122_rx_frame *frame = _frame;
-
- if (frame->ccid.type != 0x83)
- return false;
-
- if (!frame->ccid.datalen)
- 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_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,
-};
-
/* The rule: value(high byte) + value(low byte) + checksum = 0 */
static inline u8 pn533_ext_checksum(u16 value)
{
@@ -642,8 +299,10 @@ static bool pn533_std_rx_frame_is_valid(void *_frame, struct pn533 *dev)
return true;
}
-static bool pn533_std_rx_frame_is_ack(struct pn533_std_frame *frame)
+bool pn533_rx_frame_is_ack(void *_frame)
{
+ struct pn533_std_frame *frame = _frame;
+
if (frame->start_frame != cpu_to_be16(PN533_STD_FRAME_SOF))
return false;
@@ -652,6 +311,7 @@ static bool pn533_std_rx_frame_is_ack(struct pn533_std_frame *frame)
return true;
}
+EXPORT_SYMBOL_GPL(pn533_rx_frame_is_ack);
static inline int pn533_std_rx_frame_size(void *frame)
{
@@ -680,6 +340,14 @@ static u8 pn533_std_get_cmd_code(void *frame)
return PN533_FRAME_CMD(f);
}
+bool pn533_rx_frame_is_cmd_response(struct pn533 *dev, void *frame)
+{
+ return (dev->ops->get_cmd_code(frame) ==
+ PN533_CMD_RESPONSE(dev->cmd->code));
+}
+EXPORT_SYMBOL_GPL(pn533_rx_frame_is_cmd_response);
+
+
static struct pn533_frame_ops pn533_std_frame_ops = {
.tx_frame_init = pn533_std_tx_frame_init,
.tx_frame_finish = pn533_std_tx_frame_finish,
@@ -696,172 +364,6 @@ static struct pn533_frame_ops pn533_std_frame_ops = {
.get_cmd_code = pn533_std_get_cmd_code,
};
-static bool pn533_rx_frame_is_cmd_response(struct pn533 *dev, void *frame)
-{
- return (dev->ops->get_cmd_code(frame) ==
- PN533_CMD_RESPONSE(dev->cmd->code));
-}
-
-static void pn533_recv_response(struct urb *urb)
-{
- struct pn533 *dev = urb->context;
- struct pn533_cmd *cmd = dev->cmd;
- u8 *in_frame;
-
- cmd->status = urb->status;
-
- switch (urb->status) {
- case 0:
- break; /* success */
- case -ECONNRESET:
- case -ENOENT:
- dev_dbg(&dev->interface->dev,
- "The urb has been canceled (status %d)\n",
- urb->status);
- goto sched_wq;
- case -ESHUTDOWN:
- default:
- nfc_err(&dev->interface->dev,
- "Urb failure (status %d)\n", urb->status);
- goto sched_wq;
- }
-
- in_frame = dev->in_urb->transfer_buffer;
-
- dev_dbg(&dev->interface->dev, "Received a frame\n");
- print_hex_dump_debug("PN533 RX: ", DUMP_PREFIX_NONE, 16, 1, in_frame,
- dev->ops->rx_frame_size(in_frame), false);
-
- if (!dev->ops->rx_is_frame_valid(in_frame, dev)) {
- nfc_err(&dev->interface->dev, "Received an invalid frame\n");
- cmd->status = -EIO;
- goto sched_wq;
- }
-
- if (!pn533_rx_frame_is_cmd_response(dev, in_frame)) {
- nfc_err(&dev->interface->dev,
- "It it not the response to the last command\n");
- cmd->status = -EIO;
- goto sched_wq;
- }
-
-sched_wq:
- queue_work(dev->wq, &dev->cmd_complete_work);
-}
-
-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;
- struct pn533_cmd *cmd = dev->cmd;
- struct pn533_std_frame *in_frame;
- int rc;
-
- cmd->status = urb->status;
-
- switch (urb->status) {
- case 0:
- break; /* success */
- case -ECONNRESET:
- case -ENOENT:
- dev_dbg(&dev->interface->dev,
- "The urb has been stopped (status %d)\n",
- urb->status);
- goto sched_wq;
- case -ESHUTDOWN:
- default:
- nfc_err(&dev->interface->dev,
- "Urb failure (status %d)\n", urb->status);
- goto sched_wq;
- }
-
- in_frame = dev->in_urb->transfer_buffer;
-
- if (!pn533_std_rx_frame_is_ack(in_frame)) {
- nfc_err(&dev->interface->dev, "Received an invalid ack\n");
- cmd->status = -EIO;
- goto sched_wq;
- }
-
- rc = pn533_submit_urb_for_response(dev, GFP_ATOMIC);
- if (rc) {
- nfc_err(&dev->interface->dev,
- "usb_submit_urb failed with result %d\n", rc);
- cmd->status = rc;
- goto sched_wq;
- }
-
- return;
-
-sched_wq:
- queue_work(dev->wq, &dev->cmd_complete_work);
-}
-
-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)
-{
- u8 ack[PN533_STD_FRAME_ACK_SIZE] = {0x00, 0x00, 0xff, 0x00, 0xff, 0x00};
- /* spec 7.1.1.3: Preamble, SoPC (2), ACK Code (2), Postamble */
- int rc;
-
- dev->out_urb->transfer_buffer = ack;
- dev->out_urb->transfer_buffer_length = sizeof(ack);
- rc = usb_submit_urb(dev->out_urb, flags);
-
- return rc;
-}
-
-static int __pn533_send_frame_async(struct pn533 *dev,
- struct sk_buff *out,
- struct sk_buff *in,
- int in_len)
-{
- int rc;
-
- dev->out_urb->transfer_buffer = out->data;
- dev->out_urb->transfer_buffer_length = out->len;
-
- dev->in_urb->transfer_buffer = in->data;
- dev->in_urb->transfer_buffer_length = in_len;
-
- print_hex_dump_debug("PN533 TX: ", DUMP_PREFIX_NONE, 16, 1,
- out->data, out->len, false);
-
- rc = usb_submit_urb(dev->out_urb, GFP_KERNEL);
- if (rc)
- return rc;
-
- 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;
- }
-
- return 0;
-
-error:
- usb_unlink_urb(dev->out_urb);
- return rc;
-}
-
static void pn533_build_cmd_frame(struct pn533 *dev, u8 cmd_code,
struct sk_buff *skb)
{
@@ -897,7 +399,6 @@ static int pn533_send_async_complete(struct pn533 *dev)
goto done;
}
- 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);
@@ -910,15 +411,14 @@ done:
}
static int __pn533_send_async(struct pn533 *dev, u8 cmd_code,
- struct sk_buff *req, struct sk_buff *resp,
- int resp_len,
+ struct sk_buff *req,
pn533_send_async_complete_t complete_cb,
void *complete_cb_context)
{
struct pn533_cmd *cmd;
int rc = 0;
- dev_dbg(&dev->interface->dev, "Sending command 0x%x\n", cmd_code);
+ dev_dbg(dev->dev, "Sending command 0x%x\n", cmd_code);
cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
if (!cmd)
@@ -926,8 +426,6 @@ static int __pn533_send_async(struct pn533 *dev, u8 cmd_code,
cmd->code = cmd_code;
cmd->req = req;
- cmd->resp = resp;
- cmd->resp_len = resp_len;
cmd->complete_cb = complete_cb;
cmd->complete_cb_context = complete_cb_context;
@@ -936,7 +434,7 @@ static int __pn533_send_async(struct pn533 *dev, u8 cmd_code,
mutex_lock(&dev->cmd_lock);
if (!dev->cmd_pending) {
- rc = __pn533_send_frame_async(dev, req, resp, resp_len);
+ rc = dev->phy_ops->send_frame(dev, req);
if (rc)
goto error;
@@ -945,7 +443,7 @@ static int __pn533_send_async(struct pn533 *dev, u8 cmd_code,
goto unlock;
}
- dev_dbg(&dev->interface->dev, "%s Queueing command 0x%x\n",
+ dev_dbg(dev->dev, "%s Queueing command 0x%x\n",
__func__, cmd_code);
INIT_LIST_HEAD(&cmd->queue);
@@ -965,20 +463,10 @@ static int pn533_send_data_async(struct pn533 *dev, u8 cmd_code,
pn533_send_async_complete_t complete_cb,
void *complete_cb_context)
{
- struct sk_buff *resp;
int rc;
- int resp_len = dev->ops->rx_header_len +
- dev->ops->max_payload_len +
- dev->ops->rx_tail_len;
-
- 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,
+ rc = __pn533_send_async(dev, cmd_code, req, complete_cb,
complete_cb_context);
- if (rc)
- dev_kfree_skb(resp);
return rc;
}
@@ -988,20 +476,10 @@ static int pn533_send_cmd_async(struct pn533 *dev, u8 cmd_code,
pn533_send_async_complete_t complete_cb,
void *complete_cb_context)
{
- struct sk_buff *resp;
int rc;
- int resp_len = dev->ops->rx_header_len +
- dev->ops->max_payload_len +
- dev->ops->rx_tail_len;
- resp = alloc_skb(resp_len, GFP_KERNEL);
- if (!resp)
- return -ENOMEM;
-
- rc = __pn533_send_async(dev, cmd_code, req, resp, resp_len, complete_cb,
+ rc = __pn533_send_async(dev, cmd_code, req, complete_cb,
complete_cb_context);
- if (rc)
- dev_kfree_skb(resp);
return rc;
}
@@ -1019,39 +497,25 @@ static int pn533_send_cmd_direct_async(struct pn533 *dev, u8 cmd_code,
pn533_send_async_complete_t complete_cb,
void *complete_cb_context)
{
- struct sk_buff *resp;
struct pn533_cmd *cmd;
int rc;
- int resp_len = dev->ops->rx_header_len +
- dev->ops->max_payload_len +
- dev->ops->rx_tail_len;
-
- resp = alloc_skb(resp_len, GFP_KERNEL);
- if (!resp)
- return -ENOMEM;
cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
- if (!cmd) {
- dev_kfree_skb(resp);
+ if (!cmd)
return -ENOMEM;
- }
cmd->code = cmd_code;
cmd->req = req;
- cmd->resp = resp;
- cmd->resp_len = resp_len;
cmd->complete_cb = complete_cb;
cmd->complete_cb_context = complete_cb_context;
pn533_build_cmd_frame(dev, cmd_code, req);
- rc = __pn533_send_frame_async(dev, req, resp, resp_len);
- if (rc < 0) {
- dev_kfree_skb(resp);
+ rc = dev->phy_ops->send_frame(dev, req);
+ if (rc < 0)
kfree(cmd);
- } else {
+ else
dev->cmd = cmd;
- }
return rc;
}
@@ -1086,10 +550,9 @@ static void pn533_wq_cmd(struct work_struct *work)
mutex_unlock(&dev->cmd_lock);
- rc = __pn533_send_frame_async(dev, cmd->req, cmd->resp, cmd->resp_len);
+ rc = dev->phy_ops->send_frame(dev, cmd->req);
if (rc < 0) {
dev_kfree_skb(cmd->req);
- dev_kfree_skb(cmd->resp);
kfree(cmd);
return;
}
@@ -1121,7 +584,7 @@ static int pn533_send_sync_complete(struct pn533 *dev, void *_arg,
* 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
+ * as it's been already freed at the beginning of RX path by
* async_complete_cb.
*
* 3. valid pointer in case of succesfult RX path
@@ -1129,7 +592,7 @@ static int pn533_send_sync_complete(struct pn533 *dev, void *_arg,
* 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)
{
@@ -1150,43 +613,6 @@ static struct sk_buff *pn533_send_cmd_sync(struct pn533 *dev, u8 cmd_code,
return arg.resp;
}
-static void pn533_send_complete(struct urb *urb)
-{
- struct pn533 *dev = urb->context;
-
- switch (urb->status) {
- case 0:
- break; /* success */
- case -ECONNRESET:
- case -ENOENT:
- dev_dbg(&dev->interface->dev,
- "The urb has been stopped (status %d)\n",
- urb->status);
- break;
- case -ESHUTDOWN:
- default:
- nfc_err(&dev->interface->dev, "Urb failure (status %d)\n",
- urb->status);
- }
-}
-
-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);
-}
-
static struct sk_buff *pn533_alloc_skb(struct pn533 *dev, unsigned int size)
{
struct sk_buff *skb;
@@ -1233,8 +659,10 @@ static bool pn533_target_type_a_is_valid(struct pn533_target_type_a *type_a,
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 */
+ /*
+ * The length 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);
@@ -1443,7 +871,7 @@ static int pn533_target_found(struct pn533 *dev, u8 tg, u8 *tgdata,
struct nfc_target nfc_tgt;
int rc;
- dev_dbg(&dev->interface->dev, "%s: modulation=%d\n",
+ dev_dbg(dev->dev, "%s: modulation=%d\n",
__func__, dev->poll_mod_curr);
if (tg != 1)
@@ -1466,7 +894,7 @@ static int pn533_target_found(struct pn533 *dev, u8 tg, u8 *tgdata,
rc = pn533_target_found_type_b(&nfc_tgt, tgdata, tgdata_len);
break;
default:
- nfc_err(&dev->interface->dev,
+ nfc_err(dev->dev,
"Unknown current poll modulation\n");
return -EPROTO;
}
@@ -1475,12 +903,12 @@ static int pn533_target_found(struct pn533 *dev, u8 tg, u8 *tgdata,
return rc;
if (!(nfc_tgt.supported_protocols & dev->poll_protocols)) {
- dev_dbg(&dev->interface->dev,
+ dev_dbg(dev->dev,
"The Tg found doesn't have the desired protocol\n");
return -EAGAIN;
}
- dev_dbg(&dev->interface->dev,
+ dev_dbg(dev->dev,
"Target found - supported protocols: 0x%x\n",
nfc_tgt.supported_protocols);
@@ -1578,8 +1006,10 @@ static struct sk_buff *pn533_alloc_poll_tg_frame(struct pn533 *dev)
0x0, 0x0, 0x0,
0x40}; /* SEL_RES for DEP */
- unsigned int skb_len = 36 + /* mode (1), mifare (6),
- felica (18), nfcid3 (10), gb_len (1) */
+ unsigned int skb_len = 36 + /*
+ * mode (1), mifare (6),
+ * felica (18), nfcid3 (10), gb_len (1)
+ */
gbytes_len +
1; /* len Tk*/
@@ -1615,8 +1045,6 @@ static struct sk_buff *pn533_alloc_poll_tg_frame(struct pn533 *dev)
return skb;
}
-#define PN533_CMD_DATAEXCH_HEAD_LEN 1
-#define PN533_CMD_DATAEXCH_DATA_MAXLEN 262
static void pn533_wq_tm_mi_recv(struct work_struct *work);
static struct sk_buff *pn533_build_response(struct pn533 *dev);
@@ -1627,7 +1055,7 @@ static int pn533_tm_get_data_complete(struct pn533 *dev, void *arg,
u8 status, ret, mi;
int rc;
- dev_dbg(&dev->interface->dev, "%s\n", __func__);
+ dev_dbg(dev->dev, "%s\n", __func__);
if (IS_ERR(resp)) {
skb_queue_purge(&dev->resp_q);
@@ -1676,7 +1104,7 @@ static void pn533_wq_tm_mi_recv(struct work_struct *work)
struct sk_buff *skb;
int rc;
- dev_dbg(&dev->interface->dev, "%s\n", __func__);
+ dev_dbg(dev->dev, "%s\n", __func__);
skb = pn533_alloc_skb(dev, 0);
if (!skb)
@@ -1690,8 +1118,6 @@ static void pn533_wq_tm_mi_recv(struct work_struct *work)
if (rc < 0)
dev_kfree_skb(skb);
-
- return;
}
static int pn533_tm_send_complete(struct pn533 *dev, void *arg,
@@ -1702,7 +1128,7 @@ static void pn533_wq_tm_mi_send(struct work_struct *work)
struct sk_buff *skb;
int rc;
- dev_dbg(&dev->interface->dev, "%s\n", __func__);
+ dev_dbg(dev->dev, "%s\n", __func__);
/* Grab the first skb in the queue */
skb = skb_dequeue(&dev->fragment_skb);
@@ -1724,13 +1150,13 @@ static void pn533_wq_tm_mi_send(struct work_struct *work)
if (rc == 0) /* success */
return;
- dev_err(&dev->interface->dev,
+ dev_err(dev->dev,
"Error %d when trying to perform set meta data_exchange", rc);
dev_kfree_skb(skb);
error:
- pn533_send_ack(dev, GFP_KERNEL);
+ dev->phy_ops->send_ack(dev, GFP_KERNEL);
queue_work(dev->wq, &dev->cmd_work);
}
@@ -1740,7 +1166,7 @@ static void pn533_wq_tg_get_data(struct work_struct *work)
struct sk_buff *skb;
int rc;
- dev_dbg(&dev->interface->dev, "%s\n", __func__);
+ dev_dbg(dev->dev, "%s\n", __func__);
skb = pn533_alloc_skb(dev, 0);
if (!skb)
@@ -1751,8 +1177,6 @@ static void pn533_wq_tg_get_data(struct work_struct *work)
if (rc < 0)
dev_kfree_skb(skb);
-
- return;
}
#define ATR_REQ_GB_OFFSET 17
@@ -1762,7 +1186,7 @@ static int pn533_init_target_complete(struct pn533 *dev, struct sk_buff *resp)
size_t gb_len;
int rc;
- dev_dbg(&dev->interface->dev, "%s\n", __func__);
+ dev_dbg(dev->dev, "%s\n", __func__);
if (resp->len < ATR_REQ_GB_OFFSET + 1)
return -EINVAL;
@@ -1770,7 +1194,7 @@ static int pn533_init_target_complete(struct pn533 *dev, struct sk_buff *resp)
mode = resp->data[0];
cmd = &resp->data[1];
- dev_dbg(&dev->interface->dev, "Target mode 0x%x len %d\n",
+ dev_dbg(dev->dev, "Target mode 0x%x len %d\n",
mode, resp->len);
if ((mode & PN533_INIT_TARGET_RESP_FRAME_MASK) ==
@@ -1786,7 +1210,7 @@ static int pn533_init_target_complete(struct pn533 *dev, struct sk_buff *resp)
rc = nfc_tm_activated(dev->nfc_dev, NFC_PROTO_NFC_DEP_MASK,
comm_mode, gb, gb_len);
if (rc < 0) {
- nfc_err(&dev->interface->dev,
+ nfc_err(dev->dev,
"Error when signaling target activation\n");
return rc;
}
@@ -1801,7 +1225,7 @@ static void pn533_listen_mode_timer(unsigned long data)
{
struct pn533 *dev = (struct pn533 *)data;
- dev_dbg(&dev->interface->dev, "Listen mode timeout\n");
+ dev_dbg(dev->dev, "Listen mode timeout\n");
dev->cancel_listen = 1;
@@ -1816,12 +1240,12 @@ static int pn533_rf_complete(struct pn533 *dev, void *arg,
{
int rc = 0;
- dev_dbg(&dev->interface->dev, "%s\n", __func__);
+ dev_dbg(dev->dev, "%s\n", __func__);
if (IS_ERR(resp)) {
rc = PTR_ERR(resp);
- nfc_err(&dev->interface->dev, "RF setting error %d\n", rc);
+ nfc_err(dev->dev, "RF setting error %d\n", rc);
return rc;
}
@@ -1839,7 +1263,7 @@ static void pn533_wq_rf(struct work_struct *work)
struct sk_buff *skb;
int rc;
- dev_dbg(&dev->interface->dev, "%s\n", __func__);
+ dev_dbg(dev->dev, "%s\n", __func__);
skb = pn533_alloc_skb(dev, 2);
if (!skb)
@@ -1852,10 +1276,8 @@ static void pn533_wq_rf(struct work_struct *work)
pn533_rf_complete, NULL);
if (rc < 0) {
dev_kfree_skb(skb);
- nfc_err(&dev->interface->dev, "RF setting error %d\n", rc);
+ nfc_err(dev->dev, "RF setting error %d\n", rc);
}
-
- return;
}
static int pn533_poll_dep_complete(struct pn533 *dev, void *arg,
@@ -1880,7 +1302,7 @@ static int pn533_poll_dep_complete(struct pn533 *dev, void *arg,
return 0;
}
- dev_dbg(&dev->interface->dev, "Creating new target");
+ dev_dbg(dev->dev, "Creating new target");
nfc_target.supported_protocols = NFC_PROTO_NFC_DEP_MASK;
nfc_target.nfcid1_len = 10;
@@ -1918,7 +1340,7 @@ static int pn533_poll_dep(struct nfc_dev *nfc_dev)
u8 *next, nfcid3[NFC_NFCID3_MAXSIZE];
u8 passive_data[PASSIVE_DATA_LEN] = {0x00, 0xff, 0xff, 0x00, 0x3};
- dev_dbg(&dev->interface->dev, "%s", __func__);
+ dev_dbg(dev->dev, "%s", __func__);
if (!dev->gb) {
dev->gb = nfc_get_local_general_bytes(nfc_dev, &dev->gb_len);
@@ -1975,21 +1397,20 @@ static int pn533_poll_complete(struct pn533 *dev, void *arg,
struct pn533_poll_modulations *cur_mod;
int rc;
- dev_dbg(&dev->interface->dev, "%s\n", __func__);
+ dev_dbg(dev->dev, "%s\n", __func__);
if (IS_ERR(resp)) {
rc = PTR_ERR(resp);
- nfc_err(&dev->interface->dev, "%s Poll complete error %d\n",
+ nfc_err(dev->dev, "%s Poll complete error %d\n",
__func__, rc);
if (rc == -ENOENT) {
if (dev->poll_mod_count != 0)
return rc;
- else
- goto stop_poll;
+ goto stop_poll;
} else if (rc < 0) {
- nfc_err(&dev->interface->dev,
+ nfc_err(dev->dev,
"Error %d when running poll\n", rc);
goto stop_poll;
}
@@ -2009,7 +1430,7 @@ static int pn533_poll_complete(struct pn533 *dev, void *arg,
goto done;
if (!dev->poll_mod_count) {
- dev_dbg(&dev->interface->dev, "Polling has been stopped\n");
+ dev_dbg(dev->dev, "Polling has been stopped\n");
goto done;
}
@@ -2022,7 +1443,7 @@ done:
return rc;
stop_poll:
- nfc_err(&dev->interface->dev, "Polling operation has been stopped\n");
+ nfc_err(dev->dev, "Polling operation has been stopped\n");
pn533_poll_reset_mod_list(dev);
dev->poll_protocols = 0;
@@ -2052,7 +1473,7 @@ static int pn533_send_poll_frame(struct pn533 *dev)
mod = dev->poll_mod_active[dev->poll_mod_curr];
- dev_dbg(&dev->interface->dev, "%s mod len %d\n",
+ dev_dbg(dev->dev, "%s mod len %d\n",
__func__, mod->len);
if ((dev->poll_protocols & NFC_PROTO_NFC_DEP_MASK) && dev->poll_dep) {
@@ -2069,7 +1490,7 @@ static int pn533_send_poll_frame(struct pn533 *dev)
}
if (!skb) {
- nfc_err(&dev->interface->dev, "Failed to allocate skb\n");
+ nfc_err(dev->dev, "Failed to allocate skb\n");
return -ENOMEM;
}
@@ -2077,7 +1498,7 @@ static int pn533_send_poll_frame(struct pn533 *dev)
NULL);
if (rc < 0) {
dev_kfree_skb(skb);
- nfc_err(&dev->interface->dev, "Polling loop error %d\n", rc);
+ nfc_err(dev->dev, "Polling loop error %d\n", rc);
}
return rc;
@@ -2091,13 +1512,13 @@ static void pn533_wq_poll(struct work_struct *work)
cur_mod = dev->poll_mod_active[dev->poll_mod_curr];
- dev_dbg(&dev->interface->dev,
+ dev_dbg(dev->dev,
"%s cancel_listen %d modulation len %d\n",
__func__, dev->cancel_listen, cur_mod->len);
if (dev->cancel_listen == 1) {
dev->cancel_listen = 0;
- pn533_abort_cmd(dev, GFP_ATOMIC);
+ dev->phy_ops->abort_cmd(dev, GFP_ATOMIC);
}
rc = pn533_send_poll_frame(dev);
@@ -2106,8 +1527,6 @@ static void pn533_wq_poll(struct work_struct *work)
if (cur_mod->len == 0 && dev->poll_mod_count > 1)
mod_timer(&dev->listen_timer, jiffies + PN533_LISTEN_TIME * HZ);
-
- return;
}
static int pn533_start_poll(struct nfc_dev *nfc_dev,
@@ -2118,18 +1537,18 @@ static int pn533_start_poll(struct nfc_dev *nfc_dev,
u8 rand_mod;
int rc;
- dev_dbg(&dev->interface->dev,
+ dev_dbg(dev->dev,
"%s: im protocols 0x%x tm protocols 0x%x\n",
__func__, im_protocols, tm_protocols);
if (dev->tgt_active_prot) {
- nfc_err(&dev->interface->dev,
+ nfc_err(dev->dev,
"Cannot poll with a target already activated\n");
return -EBUSY;
}
if (dev->tgt_mode) {
- nfc_err(&dev->interface->dev,
+ nfc_err(dev->dev,
"Cannot poll while already being activated\n");
return -EBUSY;
}
@@ -2167,12 +1586,12 @@ static void pn533_stop_poll(struct nfc_dev *nfc_dev)
del_timer(&dev->listen_timer);
if (!dev->poll_mod_count) {
- dev_dbg(&dev->interface->dev,
+ dev_dbg(dev->dev,
"Polling operation was not running\n");
return;
}
- pn533_abort_cmd(dev, GFP_KERNEL);
+ dev->phy_ops->abort_cmd(dev, GFP_KERNEL);
flush_delayed_work(&dev->poll_work);
pn533_poll_reset_mod_list(dev);
}
@@ -2185,7 +1604,7 @@ static int pn533_activate_target_nfcdep(struct pn533 *dev)
struct sk_buff *skb;
struct sk_buff *resp;
- dev_dbg(&dev->interface->dev, "%s\n", __func__);
+ dev_dbg(dev->dev, "%s\n", __func__);
skb = pn533_alloc_skb(dev, sizeof(u8) * 2); /*TG + Next*/
if (!skb)
@@ -2201,7 +1620,7 @@ static int pn533_activate_target_nfcdep(struct pn533 *dev)
rsp = (struct pn533_cmd_activate_response *)resp->data;
rc = rsp->status & PN533_CMD_RET_MASK;
if (rc != PN533_CMD_RET_SUCCESS) {
- nfc_err(&dev->interface->dev,
+ nfc_err(dev->dev,
"Target activation failed (error 0x%x)\n", rc);
dev_kfree_skb(resp);
return -EIO;
@@ -2221,28 +1640,28 @@ static int pn533_activate_target(struct nfc_dev *nfc_dev,
struct pn533 *dev = nfc_get_drvdata(nfc_dev);
int rc;
- dev_dbg(&dev->interface->dev, "%s: protocol=%u\n", __func__, protocol);
+ dev_dbg(dev->dev, "%s: protocol=%u\n", __func__, protocol);
if (dev->poll_mod_count) {
- nfc_err(&dev->interface->dev,
+ nfc_err(dev->dev,
"Cannot activate while polling\n");
return -EBUSY;
}
if (dev->tgt_active_prot) {
- nfc_err(&dev->interface->dev,
+ nfc_err(dev->dev,
"There is already an active target\n");
return -EBUSY;
}
if (!dev->tgt_available_prots) {
- nfc_err(&dev->interface->dev,
+ nfc_err(dev->dev,
"There is no available target to activate\n");
return -EINVAL;
}
if (!(dev->tgt_available_prots & (1 << protocol))) {
- nfc_err(&dev->interface->dev,
+ nfc_err(dev->dev,
"Target doesn't support requested proto %u\n",
protocol);
return -EINVAL;
@@ -2251,7 +1670,7 @@ static int pn533_activate_target(struct nfc_dev *nfc_dev,
if (protocol == NFC_PROTO_NFC_DEP) {
rc = pn533_activate_target_nfcdep(dev);
if (rc) {
- nfc_err(&dev->interface->dev,
+ nfc_err(dev->dev,
"Activating target with DEP failed %d\n", rc);
return rc;
}
@@ -2268,19 +1687,19 @@ static int pn533_deactivate_target_complete(struct pn533 *dev, void *arg,
{
int rc = 0;
- dev_dbg(&dev->interface->dev, "%s\n", __func__);
+ dev_dbg(dev->dev, "%s\n", __func__);
if (IS_ERR(resp)) {
rc = PTR_ERR(resp);
- nfc_err(&dev->interface->dev, "Target release error %d\n", rc);
+ nfc_err(dev->dev, "Target release error %d\n", rc);
return rc;
}
rc = resp->data[0] & PN533_CMD_RET_MASK;
if (rc != PN533_CMD_RET_SUCCESS)
- nfc_err(&dev->interface->dev,
+ nfc_err(dev->dev,
"Error 0x%x when releasing the target\n", rc);
dev_kfree_skb(resp);
@@ -2294,10 +1713,10 @@ static void pn533_deactivate_target(struct nfc_dev *nfc_dev,
struct sk_buff *skb;
int rc;
- dev_dbg(&dev->interface->dev, "%s\n", __func__);
+ dev_dbg(dev->dev, "%s\n", __func__);
if (!dev->tgt_active_prot) {
- nfc_err(&dev->interface->dev, "There is no active target\n");
+ nfc_err(dev->dev, "There is no active target\n");
return;
}
@@ -2314,10 +1733,8 @@ static void pn533_deactivate_target(struct nfc_dev *nfc_dev,
pn533_deactivate_target_complete, NULL);
if (rc < 0) {
dev_kfree_skb(skb);
- nfc_err(&dev->interface->dev, "Target release error %d\n", rc);
+ nfc_err(dev->dev, "Target release error %d\n", rc);
}
-
- return;
}
@@ -2336,7 +1753,7 @@ static int pn533_in_dep_link_up_complete(struct pn533 *dev, void *arg,
if (dev->tgt_available_prots &&
!(dev->tgt_available_prots & (1 << NFC_PROTO_NFC_DEP))) {
- nfc_err(&dev->interface->dev,
+ nfc_err(dev->dev,
"The target does not support DEP\n");
rc = -EINVAL;
goto error;
@@ -2346,7 +1763,7 @@ static int pn533_in_dep_link_up_complete(struct pn533 *dev, void *arg,
rc = rsp->status & PN533_CMD_RET_MASK;
if (rc != PN533_CMD_RET_SUCCESS) {
- nfc_err(&dev->interface->dev,
+ nfc_err(dev->dev,
"Bringing DEP link up failed (error 0x%x)\n", rc);
goto error;
}
@@ -2354,7 +1771,7 @@ static int pn533_in_dep_link_up_complete(struct pn533 *dev, void *arg,
if (!dev->tgt_available_prots) {
struct nfc_target nfc_target;
- dev_dbg(&dev->interface->dev, "Creating new target\n");
+ dev_dbg(dev->dev, "Creating new target\n");
nfc_target.supported_protocols = NFC_PROTO_NFC_DEP_MASK;
nfc_target.nfcid1_len = 10;
@@ -2392,16 +1809,16 @@ static int pn533_dep_link_up(struct nfc_dev *nfc_dev, struct nfc_target *target,
u8 *next, *arg, nfcid3[NFC_NFCID3_MAXSIZE];
u8 passive_data[PASSIVE_DATA_LEN] = {0x00, 0xff, 0xff, 0x00, 0x3};
- dev_dbg(&dev->interface->dev, "%s\n", __func__);
+ dev_dbg(dev->dev, "%s\n", __func__);
if (dev->poll_mod_count) {
- nfc_err(&dev->interface->dev,
+ nfc_err(dev->dev,
"Cannot bring the DEP link up while polling\n");
return -EBUSY;
}
if (dev->tgt_active_prot) {
- nfc_err(&dev->interface->dev,
+ nfc_err(dev->dev,
"There is already an active target\n");
return -EBUSY;
}
@@ -2472,12 +1889,12 @@ static int pn533_dep_link_down(struct nfc_dev *nfc_dev)
{
struct pn533 *dev = nfc_get_drvdata(nfc_dev);
- dev_dbg(&dev->interface->dev, "%s\n", __func__);
+ dev_dbg(dev->dev, "%s\n", __func__);
pn533_poll_reset_mod_list(dev);
if (dev->tgt_mode || dev->tgt_active_prot)
- pn533_abort_cmd(dev, GFP_KERNEL);
+ dev->phy_ops->abort_cmd(dev, GFP_KERNEL);
dev->tgt_active_prot = 0;
dev->tgt_mode = 0;
@@ -2497,7 +1914,7 @@ static struct sk_buff *pn533_build_response(struct pn533 *dev)
struct sk_buff *skb, *tmp, *t;
unsigned int skb_len = 0, tmp_len = 0;
- dev_dbg(&dev->interface->dev, "%s\n", __func__);
+ dev_dbg(dev->dev, "%s\n", __func__);
if (skb_queue_empty(&dev->resp_q))
return NULL;
@@ -2510,7 +1927,7 @@ static struct sk_buff *pn533_build_response(struct pn533 *dev)
skb_queue_walk_safe(&dev->resp_q, tmp, t)
skb_len += tmp->len;
- dev_dbg(&dev->interface->dev, "%s total length %d\n",
+ dev_dbg(dev->dev, "%s total length %d\n",
__func__, skb_len);
skb = alloc_skb(skb_len, GFP_KERNEL);
@@ -2538,7 +1955,7 @@ static int pn533_data_exchange_complete(struct pn533 *dev, void *_arg,
int rc = 0;
u8 status, ret, mi;
- dev_dbg(&dev->interface->dev, "%s\n", __func__);
+ dev_dbg(dev->dev, "%s\n", __func__);
if (IS_ERR(resp)) {
rc = PTR_ERR(resp);
@@ -2552,7 +1969,7 @@ static int pn533_data_exchange_complete(struct pn533 *dev, void *_arg,
skb_pull(resp, sizeof(status));
if (ret != PN533_CMD_RET_SUCCESS) {
- nfc_err(&dev->interface->dev,
+ nfc_err(dev->dev,
"Exchanging data failed (error 0x%x)\n", ret);
rc = -EIO;
goto error;
@@ -2593,6 +2010,43 @@ _error:
return rc;
}
+/*
+ * Receive an incoming pn533 frame. skb contains only header and payload.
+ * If skb == NULL, it is a notification that the link below is dead.
+ */
+void pn533_recv_frame(struct pn533 *dev, struct sk_buff *skb, int status)
+{
+ dev->cmd->status = status;
+
+ if (skb == NULL) {
+ pr_err("NULL Frame -> link is dead\n");
+ goto sched_wq;
+ }
+
+ if (pn533_rx_frame_is_ack(skb->data)) {
+ dev_dbg(dev->dev, "%s: Received ACK frame\n", __func__);
+ dev_kfree_skb(skb);
+ return;
+ }
+
+ print_hex_dump_debug("PN533 RX: ", DUMP_PREFIX_NONE, 16, 1, skb->data,
+ dev->ops->rx_frame_size(skb->data), false);
+
+ if (!dev->ops->rx_is_frame_valid(skb->data, dev)) {
+ nfc_err(dev->dev, "Received an invalid frame\n");
+ dev->cmd->status = -EIO;
+ } else if (!pn533_rx_frame_is_cmd_response(dev, skb->data)) {
+ nfc_err(dev->dev, "It it not the response to the last command\n");
+ dev->cmd->status = -EIO;
+ }
+
+ dev->cmd->resp = skb;
+
+sched_wq:
+ queue_work(dev->wq, &dev->cmd_complete_work);
+}
+EXPORT_SYMBOL(pn533_recv_frame);
+
/* Split the Tx skb into small chunks */
static int pn533_fill_fragment_skbs(struct pn533 *dev, struct sk_buff *skb)
{
@@ -2648,10 +2102,10 @@ static int pn533_transceive(struct nfc_dev *nfc_dev,
struct pn533_data_exchange_arg *arg = NULL;
int rc;
- dev_dbg(&dev->interface->dev, "%s\n", __func__);
+ dev_dbg(dev->dev, "%s\n", __func__);
if (!dev->tgt_active_prot) {
- nfc_err(&dev->interface->dev,
+ nfc_err(dev->dev,
"Can't exchange data if there is no active target\n");
rc = -EINVAL;
goto error;
@@ -2715,7 +2169,7 @@ static int pn533_tm_send_complete(struct pn533 *dev, void *arg,
{
u8 status;
- dev_dbg(&dev->interface->dev, "%s\n", __func__);
+ dev_dbg(dev->dev, "%s\n", __func__);
if (IS_ERR(resp))
return PTR_ERR(resp);
@@ -2747,7 +2201,7 @@ static int pn533_tm_send(struct nfc_dev *nfc_dev, struct sk_buff *skb)
struct pn533 *dev = nfc_get_drvdata(nfc_dev);
int rc;
- dev_dbg(&dev->interface->dev, "%s\n", __func__);
+ dev_dbg(dev->dev, "%s\n", __func__);
/* let's split in multiple chunks if size's too big */
if (skb->len > PN533_CMD_DATAEXCH_DATA_MAXLEN) {
@@ -2785,7 +2239,7 @@ static void pn533_wq_mi_recv(struct work_struct *work)
struct sk_buff *skb;
int rc;
- dev_dbg(&dev->interface->dev, "%s\n", __func__);
+ dev_dbg(dev->dev, "%s\n", __func__);
skb = pn533_alloc_skb(dev, PN533_CMD_DATAEXCH_HEAD_LEN);
if (!skb)
@@ -2817,14 +2271,14 @@ static void pn533_wq_mi_recv(struct work_struct *work)
if (rc == 0) /* success */
return;
- nfc_err(&dev->interface->dev,
+ nfc_err(dev->dev,
"Error %d when trying to perform data_exchange\n", rc);
dev_kfree_skb(skb);
kfree(dev->cmd_complete_mi_arg);
error:
- pn533_send_ack(dev, GFP_KERNEL);
+ dev->phy_ops->send_ack(dev, GFP_KERNEL);
queue_work(dev->wq, &dev->cmd_work);
}
@@ -2834,7 +2288,7 @@ static void pn533_wq_mi_send(struct work_struct *work)
struct sk_buff *skb;
int rc;
- dev_dbg(&dev->interface->dev, "%s\n", __func__);
+ dev_dbg(dev->dev, "%s\n", __func__);
/* Grab the first skb in the queue */
skb = skb_dequeue(&dev->fragment_skb);
@@ -2861,7 +2315,8 @@ static void pn533_wq_mi_send(struct work_struct *work)
default:
/* Still some fragments? */
- rc = pn533_send_cmd_direct_async(dev,PN533_CMD_IN_DATA_EXCHANGE,
+ rc = pn533_send_cmd_direct_async(dev,
+ PN533_CMD_IN_DATA_EXCHANGE,
skb,
pn533_data_exchange_complete,
dev->cmd_complete_dep_arg);
@@ -2872,14 +2327,14 @@ static void pn533_wq_mi_send(struct work_struct *work)
if (rc == 0) /* success */
return;
- nfc_err(&dev->interface->dev,
+ nfc_err(dev->dev,
"Error %d when trying to perform data_exchange\n", rc);
dev_kfree_skb(skb);
kfree(dev->cmd_complete_dep_arg);
error:
- pn533_send_ack(dev, GFP_KERNEL);
+ dev->phy_ops->send_ack(dev, GFP_KERNEL);
queue_work(dev->wq, &dev->cmd_work);
}
@@ -2890,7 +2345,7 @@ static int pn533_set_configuration(struct pn533 *dev, u8 cfgitem, u8 *cfgdata,
struct sk_buff *resp;
int skb_len;
- dev_dbg(&dev->interface->dev, "%s\n", __func__);
+ dev_dbg(dev->dev, "%s\n", __func__);
skb_len = sizeof(cfgitem) + cfgdata_len; /* cfgitem + cfgdata */
@@ -2937,7 +2392,7 @@ static int pn533_pasori_fw_reset(struct pn533 *dev)
struct sk_buff *skb;
struct sk_buff *resp;
- dev_dbg(&dev->interface->dev, "%s\n", __func__);
+ dev_dbg(dev->dev, "%s\n", __func__);
skb = pn533_alloc_skb(dev, sizeof(u8));
if (!skb)
@@ -2954,71 +2409,6 @@ static int pn533_pasori_fw_reset(struct pn533 *dev)
return 0;
}
-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;
-
- dev_dbg(&urb->dev->dev, "%s\n", __func__);
-
- print_hex_dump_debug("ACR122 RX: ", DUMP_PREFIX_NONE, 16, 1,
- 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;
-
- dev_dbg(&dev->interface->dev, "%s\n", __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);
-
- print_hex_dump_debug("ACR122 TX: ", DUMP_PREFIX_NONE, 16, 1,
- cmd, sizeof(cmd), false);
-
- rc = usb_submit_urb(dev->out_urb, GFP_KERNEL);
- if (rc) {
- nfc_err(&dev->interface->dev,
- "Reader power on cmd error %d\n", rc);
- return rc;
- }
-
- rc = usb_submit_urb(dev->in_urb, GFP_KERNEL);
- if (rc) {
- nfc_err(&dev->interface->dev,
- "Can't submit reader poweron cmd response %d\n", rc);
- return rc;
- }
-
- wait_for_completion(&arg.done);
- dev->in_urb->context = cntx; /* restore context */
-
- return arg.rc;
-}
-
static int pn533_rf_field(struct nfc_dev *nfc_dev, u8 rf)
{
struct pn533 *dev = nfc_get_drvdata(nfc_dev);
@@ -3030,7 +2420,7 @@ static int pn533_rf_field(struct nfc_dev *nfc_dev, u8 rf)
rc = pn533_set_configuration(dev, PN533_CFGITEM_RF_FIELD,
(u8 *)&rf_field, 1);
if (rc) {
- nfc_err(&dev->interface->dev, "Error on setting RF field\n");
+ nfc_err(dev->dev, "Error on setting RF field\n");
return rc;
}
@@ -3083,7 +2473,7 @@ static int pn533_setup(struct pn533 *dev)
break;
default:
- nfc_err(&dev->interface->dev, "Unknown device type %d\n",
+ nfc_err(dev->dev, "Unknown device type %d\n",
dev->device_type);
return -EINVAL;
}
@@ -3091,7 +2481,7 @@ static int pn533_setup(struct pn533 *dev)
rc = pn533_set_configuration(dev, PN533_CFGITEM_MAX_RETRIES,
(u8 *)&max_retries, sizeof(max_retries));
if (rc) {
- nfc_err(&dev->interface->dev,
+ nfc_err(dev->dev,
"Error on setting MAX_RETRIES config\n");
return rc;
}
@@ -3100,7 +2490,7 @@ static int pn533_setup(struct pn533 *dev)
rc = pn533_set_configuration(dev, PN533_CFGITEM_TIMING,
(u8 *)&timing, sizeof(timing));
if (rc) {
- nfc_err(&dev->interface->dev, "Error on setting RF timings\n");
+ nfc_err(dev->dev, "Error on setting RF timings\n");
return rc;
}
@@ -3114,7 +2504,7 @@ static int pn533_setup(struct pn533 *dev)
rc = pn533_set_configuration(dev, PN533_CFGITEM_PASORI,
pasori_cfg, 3);
if (rc) {
- nfc_err(&dev->interface->dev,
+ nfc_err(dev->dev,
"Error while settings PASORI config\n");
return rc;
}
@@ -3127,208 +2517,128 @@ static int pn533_setup(struct pn533 *dev)
return 0;
}
-static int pn533_probe(struct usb_interface *interface,
- const struct usb_device_id *id)
+struct pn533 *pn533_register_device(u32 device_type,
+ u32 protocols,
+ enum pn533_protocol_type protocol_type,
+ void *phy,
+ struct pn533_phy_ops *phy_ops,
+ struct pn533_frame_ops *fops,
+ struct device *dev)
{
struct pn533_fw_version fw_ver;
- struct pn533 *dev;
- struct usb_host_interface *iface_desc;
- struct usb_endpoint_descriptor *endpoint;
- int in_endpoint = 0;
- int out_endpoint = 0;
+ struct pn533 *priv;
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;
- mutex_init(&dev->cmd_lock);
-
- iface_desc = interface->cur_altsetting;
- for (i = 0; i < iface_desc->desc.bNumEndpoints; ++i) {
- endpoint = &iface_desc->endpoint[i].desc;
- if (!in_endpoint && usb_endpoint_is_bulk_in(endpoint))
- in_endpoint = endpoint->bEndpointAddress;
+ priv = kzalloc(sizeof(*priv), GFP_KERNEL);
+ if (!priv)
+ return ERR_PTR(-ENOMEM);
- if (!out_endpoint && usb_endpoint_is_bulk_out(endpoint))
- out_endpoint = endpoint->bEndpointAddress;
- }
-
- if (!in_endpoint || !out_endpoint) {
- nfc_err(&interface->dev,
- "Could not find bulk-in or bulk-out endpoint\n");
- rc = -ENODEV;
- goto error;
- }
-
- dev->in_urb = usb_alloc_urb(0, GFP_KERNEL);
- dev->out_urb = usb_alloc_urb(0, GFP_KERNEL);
-
- if (!dev->in_urb || !dev->out_urb)
- goto error;
-
- usb_fill_bulk_urb(dev->in_urb, dev->udev,
- usb_rcvbulkpipe(dev->udev, in_endpoint),
- NULL, 0, NULL, dev);
- usb_fill_bulk_urb(dev->out_urb, dev->udev,
- usb_sndbulkpipe(dev->udev, out_endpoint),
- NULL, 0, pn533_send_complete, dev);
-
- INIT_WORK(&dev->cmd_work, pn533_wq_cmd);
- INIT_WORK(&dev->cmd_complete_work, pn533_wq_cmd_complete);
- INIT_WORK(&dev->mi_rx_work, pn533_wq_mi_recv);
- INIT_WORK(&dev->mi_tx_work, pn533_wq_mi_send);
- INIT_WORK(&dev->tg_work, pn533_wq_tg_get_data);
- INIT_WORK(&dev->mi_tm_rx_work, pn533_wq_tm_mi_recv);
- INIT_WORK(&dev->mi_tm_tx_work, pn533_wq_tm_mi_send);
- INIT_DELAYED_WORK(&dev->poll_work, pn533_wq_poll);
- INIT_WORK(&dev->rf_work, pn533_wq_rf);
- dev->wq = alloc_ordered_workqueue("pn533", 0);
- if (dev->wq == NULL)
+ priv->phy = phy;
+ priv->phy_ops = phy_ops;
+ priv->dev = dev;
+ if (fops != NULL)
+ priv->ops = fops;
+ else
+ priv->ops = &pn533_std_frame_ops;
+
+ priv->protocol_type = protocol_type;
+ priv->device_type = device_type;
+
+ mutex_init(&priv->cmd_lock);
+
+ INIT_WORK(&priv->cmd_work, pn533_wq_cmd);
+ INIT_WORK(&priv->cmd_complete_work, pn533_wq_cmd_complete);
+ INIT_WORK(&priv->mi_rx_work, pn533_wq_mi_recv);
+ INIT_WORK(&priv->mi_tx_work, pn533_wq_mi_send);
+ INIT_WORK(&priv->tg_work, pn533_wq_tg_get_data);
+ INIT_WORK(&priv->mi_tm_rx_work, pn533_wq_tm_mi_recv);
+ INIT_WORK(&priv->mi_tm_tx_work, pn533_wq_tm_mi_send);
+ INIT_DELAYED_WORK(&priv->poll_work, pn533_wq_poll);
+ INIT_WORK(&priv->rf_work, pn533_wq_rf);
+ priv->wq = alloc_ordered_workqueue("pn533", 0);
+ if (priv->wq == NULL)
goto error;
- init_timer(&dev->listen_timer);
- dev->listen_timer.data = (unsigned long) dev;
- dev->listen_timer.function = pn533_listen_mode_timer;
-
- skb_queue_head_init(&dev->resp_q);
- skb_queue_head_init(&dev->fragment_skb);
-
- INIT_LIST_HEAD(&dev->cmd_queue);
-
- usb_set_intfdata(interface, dev);
-
- dev->ops = &pn533_std_frame_ops;
-
- dev->protocol_type = PN533_PROTO_REQ_ACK_RESP;
- 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;
+ init_timer(&priv->listen_timer);
+ priv->listen_timer.data = (unsigned long) priv;
+ priv->listen_timer.function = pn533_listen_mode_timer;
- 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_err(&dev->interface->dev,
- "Couldn't poweron the reader (error %d)\n", rc);
- goto destroy_wq;
- }
- break;
+ skb_queue_head_init(&priv->resp_q);
+ skb_queue_head_init(&priv->fragment_skb);
- default:
- nfc_err(&dev->interface->dev, "Unknown device type %d\n",
- dev->device_type);
- rc = -EINVAL;
- goto destroy_wq;
- }
+ INIT_LIST_HEAD(&priv->cmd_queue);
memset(&fw_ver, 0, sizeof(fw_ver));
- rc = pn533_get_firmware_version(dev, &fw_ver);
+ rc = pn533_get_firmware_version(priv, &fw_ver);
if (rc < 0)
goto destroy_wq;
- nfc_info(&dev->interface->dev,
- "NXP PN5%02X firmware ver %d.%d now attached\n",
+ nfc_info(dev, "NXP PN5%02X firmware ver %d.%d now attached\n",
fw_ver.ic, fw_ver.ver, fw_ver.rev);
- dev->nfc_dev = nfc_allocate_device(&pn533_nfc_ops, protocols,
- dev->ops->tx_header_len +
+ priv->nfc_dev = nfc_allocate_device(&pn533_nfc_ops, protocols,
+ priv->ops->tx_header_len +
PN533_CMD_DATAEXCH_HEAD_LEN,
- dev->ops->tx_tail_len);
- if (!dev->nfc_dev) {
+ priv->ops->tx_tail_len);
+ if (!priv->nfc_dev) {
rc = -ENOMEM;
goto destroy_wq;
}
- nfc_set_parent_dev(dev->nfc_dev, &interface->dev);
- nfc_set_drvdata(dev->nfc_dev, dev);
+ nfc_set_drvdata(priv->nfc_dev, priv);
- rc = nfc_register_device(dev->nfc_dev);
+ rc = nfc_register_device(priv->nfc_dev);
if (rc)
goto free_nfc_dev;
- rc = pn533_setup(dev);
+ rc = pn533_setup(priv);
if (rc)
goto unregister_nfc_dev;
- return 0;
+ return priv;
unregister_nfc_dev:
- nfc_unregister_device(dev->nfc_dev);
+ nfc_unregister_device(priv->nfc_dev);
free_nfc_dev:
- nfc_free_device(dev->nfc_dev);
+ nfc_free_device(priv->nfc_dev);
destroy_wq:
- destroy_workqueue(dev->wq);
+ destroy_workqueue(priv->wq);
error:
- usb_free_urb(dev->in_urb);
- usb_free_urb(dev->out_urb);
- usb_put_dev(dev->udev);
- kfree(dev);
- return rc;
+ kfree(priv);
+ return ERR_PTR(rc);
}
+EXPORT_SYMBOL_GPL(pn533_register_device);
-static void pn533_disconnect(struct usb_interface *interface)
+void pn533_unregister_device(struct pn533 *priv)
{
- struct pn533 *dev;
struct pn533_cmd *cmd, *n;
- dev = usb_get_intfdata(interface);
- usb_set_intfdata(interface, NULL);
+ nfc_unregister_device(priv->nfc_dev);
+ nfc_free_device(priv->nfc_dev);
- nfc_unregister_device(dev->nfc_dev);
- nfc_free_device(dev->nfc_dev);
+ flush_delayed_work(&priv->poll_work);
+ destroy_workqueue(priv->wq);
- usb_kill_urb(dev->in_urb);
- usb_kill_urb(dev->out_urb);
+ skb_queue_purge(&priv->resp_q);
- flush_delayed_work(&dev->poll_work);
- destroy_workqueue(dev->wq);
+ del_timer(&priv->listen_timer);
- skb_queue_purge(&dev->resp_q);
-
- del_timer(&dev->listen_timer);
-
- list_for_each_entry_safe(cmd, n, &dev->cmd_queue, queue) {
+ list_for_each_entry_safe(cmd, n, &priv->cmd_queue, queue) {
list_del(&cmd->queue);
kfree(cmd);
}
- usb_free_urb(dev->in_urb);
- usb_free_urb(dev->out_urb);
- kfree(dev);
-
- nfc_info(&interface->dev, "NXP PN533 NFC device disconnected\n");
+ kfree(priv);
}
+EXPORT_SYMBOL_GPL(pn533_unregister_device);
-static struct usb_driver pn533_driver = {
- .name = "pn533",
- .probe = pn533_probe,
- .disconnect = pn533_disconnect,
- .id_table = pn533_table,
-};
-
-module_usb_driver(pn533_driver);
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>");
-MODULE_DESCRIPTION("PN533 usb driver ver " VERSION);
+MODULE_DESCRIPTION("PN533 driver ver " VERSION);
MODULE_VERSION(VERSION);
MODULE_LICENSE("GPL");
diff --git a/drivers/nfc/pn533/pn533.h b/drivers/nfc/pn533/pn533.h
new file mode 100644
index 000000000000..1d9f19eb2a99
--- /dev/null
+++ b/drivers/nfc/pn533/pn533.h
@@ -0,0 +1,235 @@
+/*
+ * Driver for NXP PN533 NFC Chip
+ *
+ * Copyright (C) 2011 Instituto Nokia de Tecnologia
+ * Copyright (C) 2012-2013 Tieto Poland
+ *
+ * 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, see <http://www.gnu.org/licenses/>.
+ */
+
+#define PN533_DEVICE_STD 0x1
+#define PN533_DEVICE_PASORI 0x2
+#define PN533_DEVICE_ACR122U 0x3
+
+#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)
+
+#define PN533_NO_TYPE_B_PROTOCOLS (NFC_PROTO_JEWEL_MASK | \
+ NFC_PROTO_MIFARE_MASK | \
+ NFC_PROTO_FELICA_MASK | \
+ NFC_PROTO_ISO14443_MASK | \
+ NFC_PROTO_NFC_DEP_MASK)
+
+/* Standard pn533 frame definitions (standard and extended)*/
+#define PN533_STD_FRAME_HEADER_LEN (sizeof(struct pn533_std_frame) \
+ + 2) /* data[0] TFI, data[1] CC */
+#define PN533_STD_FRAME_TAIL_LEN 2 /* data[len] DCS, data[len + 1] postamble*/
+
+#define PN533_EXT_FRAME_HEADER_LEN (sizeof(struct pn533_ext_frame) \
+ + 2) /* data[0] TFI, data[1] CC */
+
+#define PN533_CMD_DATAEXCH_HEAD_LEN 1
+#define PN533_CMD_DATAEXCH_DATA_MAXLEN 262
+#define PN533_CMD_DATAFRAME_MAXLEN 240 /* max data length (send) */
+
+/*
+ * Max extended frame payload len, excluding TFI and CC
+ * which are already in PN533_FRAME_HEADER_LEN.
+ */
+#define PN533_STD_FRAME_MAX_PAYLOAD_LEN 263
+
+
+/* Preamble (1), SoPC (2), ACK Code (2), Postamble (1) */
+#define PN533_STD_FRAME_ACK_SIZE 6
+#define PN533_STD_FRAME_CHECKSUM(f) (f->data[f->datalen])
+#define PN533_STD_FRAME_POSTAMBLE(f) (f->data[f->datalen + 1])
+/* Half start code (3), LEN (4) should be 0xffff for extended frame */
+#define PN533_STD_IS_EXTENDED(hdr) ((hdr)->datalen == 0xFF \
+ && (hdr)->datalen_checksum == 0xFF)
+#define PN533_EXT_FRAME_CHECKSUM(f) (f->data[be16_to_cpu(f->datalen)])
+
+/* start of frame */
+#define PN533_STD_FRAME_SOF 0x00FF
+
+/* 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
+
+/* PN533 Commands */
+#define PN533_FRAME_CMD(f) (f->data[1])
+
+#define PN533_CMD_GET_FIRMWARE_VERSION 0x02
+#define PN533_CMD_RF_CONFIGURATION 0x32
+#define PN533_CMD_IN_DATA_EXCHANGE 0x40
+#define PN533_CMD_IN_COMM_THRU 0x42
+#define PN533_CMD_IN_LIST_PASSIVE_TARGET 0x4A
+#define PN533_CMD_IN_ATR 0x50
+#define PN533_CMD_IN_RELEASE 0x52
+#define PN533_CMD_IN_JUMP_FOR_DEP 0x56
+
+#define PN533_CMD_TG_INIT_AS_TARGET 0x8c
+#define PN533_CMD_TG_GET_DATA 0x86
+#define PN533_CMD_TG_SET_DATA 0x8e
+#define PN533_CMD_TG_SET_META_DATA 0x94
+#define PN533_CMD_UNDEF 0xff
+
+#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
+
+
+enum pn533_protocol_type {
+ PN533_PROTO_REQ_ACK_RESP = 0,
+ PN533_PROTO_REQ_RESP
+};
+
+/* 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,
+ PN533_LISTEN_MOD,
+
+ __PN533_POLL_MOD_AFTER_LAST,
+};
+#define PN533_POLL_MOD_MAX (__PN533_POLL_MOD_AFTER_LAST - 1)
+
+struct pn533_std_frame {
+ u8 preamble;
+ __be16 start_frame;
+ u8 datalen;
+ u8 datalen_checksum;
+ u8 data[];
+} __packed;
+
+struct pn533_ext_frame { /* Extended Information frame */
+ u8 preamble;
+ __be16 start_frame;
+ __be16 eif_flag; /* fixed to 0xFFFF */
+ __be16 datalen;
+ u8 datalen_checksum;
+ u8 data[];
+} __packed;
+
+struct pn533 {
+ struct nfc_dev *nfc_dev;
+ u32 device_type;
+ enum pn533_protocol_type protocol_type;
+
+ struct sk_buff_head resp_q;
+ struct sk_buff_head fragment_skb;
+
+ struct workqueue_struct *wq;
+ struct work_struct cmd_work;
+ struct work_struct cmd_complete_work;
+ struct delayed_work poll_work;
+ struct work_struct mi_rx_work;
+ struct work_struct mi_tx_work;
+ struct work_struct mi_tm_rx_work;
+ struct work_struct mi_tm_tx_work;
+ struct work_struct tg_work;
+ struct work_struct rf_work;
+
+ struct list_head cmd_queue;
+ struct pn533_cmd *cmd;
+ u8 cmd_pending;
+ struct mutex cmd_lock; /* protects cmd queue */
+
+ void *cmd_complete_mi_arg;
+ void *cmd_complete_dep_arg;
+
+ struct pn533_poll_modulations *poll_mod_active[PN533_POLL_MOD_MAX + 1];
+ u8 poll_mod_count;
+ u8 poll_mod_curr;
+ u8 poll_dep;
+ u32 poll_protocols;
+ u32 listen_protocols;
+ struct timer_list listen_timer;
+ int cancel_listen;
+
+ u8 *gb;
+ size_t gb_len;
+
+ u8 tgt_available_prots;
+ u8 tgt_active_prot;
+ u8 tgt_mode;
+
+ struct pn533_frame_ops *ops;
+
+ struct device *dev;
+ void *phy;
+ struct pn533_phy_ops *phy_ops;
+};
+
+typedef int (*pn533_send_async_complete_t) (struct pn533 *dev, void *arg,
+ struct sk_buff *resp);
+
+struct pn533_cmd {
+ struct list_head queue;
+ u8 code;
+ int status;
+ struct sk_buff *req;
+ struct sk_buff *resp;
+ pn533_send_async_complete_t complete_cb;
+ void *complete_cb_context;
+};
+
+
+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, struct pn533 *dev);
+ bool (*rx_frame_is_ack)(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);
+};
+
+
+struct pn533_phy_ops {
+ int (*send_frame)(struct pn533 *priv,
+ struct sk_buff *out);
+ int (*send_ack)(struct pn533 *dev, gfp_t flags);
+ void (*abort_cmd)(struct pn533 *priv, gfp_t flags);
+};
+
+
+struct pn533 *pn533_register_device(u32 device_type,
+ u32 protocols,
+ enum pn533_protocol_type protocol_type,
+ void *phy,
+ struct pn533_phy_ops *phy_ops,
+ struct pn533_frame_ops *fops,
+ struct device *dev);
+
+void pn533_unregister_device(struct pn533 *priv);
+void pn533_recv_frame(struct pn533 *dev, struct sk_buff *skb, int status);
+
+bool pn533_rx_frame_is_cmd_response(struct pn533 *dev, void *frame);
+bool pn533_rx_frame_is_ack(void *_frame);
diff --git a/drivers/nfc/pn533/usb.c b/drivers/nfc/pn533/usb.c
new file mode 100644
index 000000000000..4f73cbf8ccef
--- /dev/null
+++ b/drivers/nfc/pn533/usb.c
@@ -0,0 +1,598 @@
+/*
+ * Driver for NXP PN533 NFC Chip - USB transport layer
+ *
+ * Copyright (C) 2011 Instituto Nokia de Tecnologia
+ * Copyright (C) 2012-2013 Tieto Poland
+ *
+ * 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, see <http://www.gnu.org/licenses/>.
+ */
+
+#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>
+#include <net/nfc/nfc.h>
+#include "pn533.h"
+
+#define VERSION "0.1"
+
+#define PN533_VENDOR_ID 0x4CC
+#define PN533_PRODUCT_ID 0x2533
+
+#define SCM_VENDOR_ID 0x4E6
+#define SCL3711_PRODUCT_ID 0x5591
+
+#define SONY_VENDOR_ID 0x054c
+#define PASORI_PRODUCT_ID 0x02e1
+
+#define ACS_VENDOR_ID 0x072f
+#define ACR122U_PRODUCT_ID 0x2200
+
+static const struct usb_device_id pn533_usb_table[] = {
+ { USB_DEVICE(PN533_VENDOR_ID, PN533_PRODUCT_ID),
+ .driver_info = PN533_DEVICE_STD },
+ { USB_DEVICE(SCM_VENDOR_ID, SCL3711_PRODUCT_ID),
+ .driver_info = PN533_DEVICE_STD },
+ { USB_DEVICE(SONY_VENDOR_ID, PASORI_PRODUCT_ID),
+ .driver_info = PN533_DEVICE_PASORI },
+ { USB_DEVICE(ACS_VENDOR_ID, ACR122U_PRODUCT_ID),
+ .driver_info = PN533_DEVICE_ACR122U },
+ { }
+};
+MODULE_DEVICE_TABLE(usb, pn533_usb_table);
+
+struct pn533_usb_phy {
+ struct usb_device *udev;
+ struct usb_interface *interface;
+
+ struct urb *out_urb;
+ struct urb *in_urb;
+
+ struct pn533 *priv;
+};
+
+static void pn533_recv_response(struct urb *urb)
+{
+ struct pn533_usb_phy *phy = urb->context;
+ struct sk_buff *skb = NULL;
+
+ if (!urb->status) {
+ skb = alloc_skb(urb->actual_length, GFP_KERNEL);
+ if (!skb) {
+ nfc_err(&phy->udev->dev, "failed to alloc memory\n");
+ } else {
+ memcpy(skb_put(skb, urb->actual_length),
+ urb->transfer_buffer, urb->actual_length);
+ }
+ }
+
+ pn533_recv_frame(phy->priv, skb, urb->status);
+}
+
+static int pn533_submit_urb_for_response(struct pn533_usb_phy *phy, gfp_t flags)
+{
+ phy->in_urb->complete = pn533_recv_response;
+
+ return usb_submit_urb(phy->in_urb, flags);
+}
+
+static void pn533_recv_ack(struct urb *urb)
+{
+ struct pn533_usb_phy *phy = urb->context;
+ struct pn533 *priv = phy->priv;
+ struct pn533_cmd *cmd = priv->cmd;
+ struct pn533_std_frame *in_frame;
+ int rc;
+
+ cmd->status = urb->status;
+
+ switch (urb->status) {
+ case 0:
+ break; /* success */
+ case -ECONNRESET:
+ case -ENOENT:
+ dev_dbg(&phy->udev->dev,
+ "The urb has been stopped (status %d)\n",
+ urb->status);
+ goto sched_wq;
+ case -ESHUTDOWN:
+ default:
+ nfc_err(&phy->udev->dev,
+ "Urb failure (status %d)\n", urb->status);
+ goto sched_wq;
+ }
+
+ in_frame = phy->in_urb->transfer_buffer;
+
+ if (!pn533_rx_frame_is_ack(in_frame)) {
+ nfc_err(&phy->udev->dev, "Received an invalid ack\n");
+ cmd->status = -EIO;
+ goto sched_wq;
+ }
+
+ rc = pn533_submit_urb_for_response(phy, GFP_ATOMIC);
+ if (rc) {
+ nfc_err(&phy->udev->dev,
+ "usb_submit_urb failed with result %d\n", rc);
+ cmd->status = rc;
+ goto sched_wq;
+ }
+
+ return;
+
+sched_wq:
+ queue_work(priv->wq, &priv->cmd_complete_work);
+}
+
+static int pn533_submit_urb_for_ack(struct pn533_usb_phy *phy, gfp_t flags)
+{
+ phy->in_urb->complete = pn533_recv_ack;
+
+ return usb_submit_urb(phy->in_urb, flags);
+}
+
+static int pn533_usb_send_ack(struct pn533 *dev, gfp_t flags)
+{
+ struct pn533_usb_phy *phy = dev->phy;
+ u8 ack[6] = {0x00, 0x00, 0xff, 0x00, 0xff, 0x00};
+ /* spec 7.1.1.3: Preamble, SoPC (2), ACK Code (2), Postamble */
+ int rc;
+
+ phy->out_urb->transfer_buffer = ack;
+ phy->out_urb->transfer_buffer_length = sizeof(ack);
+ rc = usb_submit_urb(phy->out_urb, flags);
+
+ return rc;
+}
+
+static int pn533_usb_send_frame(struct pn533 *dev,
+ struct sk_buff *out)
+{
+ struct pn533_usb_phy *phy = dev->phy;
+ int rc;
+
+ if (phy->priv == NULL)
+ phy->priv = dev;
+
+ phy->out_urb->transfer_buffer = out->data;
+ phy->out_urb->transfer_buffer_length = out->len;
+
+ print_hex_dump_debug("PN533 TX: ", DUMP_PREFIX_NONE, 16, 1,
+ out->data, out->len, false);
+
+ rc = usb_submit_urb(phy->out_urb, GFP_KERNEL);
+ if (rc)
+ return rc;
+
+ if (dev->protocol_type == PN533_PROTO_REQ_RESP) {
+ /* request for response for sent packet directly */
+ rc = pn533_submit_urb_for_response(phy, 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(phy, GFP_KERNEL);
+ if (rc)
+ goto error;
+ }
+
+ return 0;
+
+error:
+ usb_unlink_urb(phy->out_urb);
+ return rc;
+}
+
+static void pn533_usb_abort_cmd(struct pn533 *dev, gfp_t flags)
+{
+ struct pn533_usb_phy *phy = dev->phy;
+
+ /* 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_usb_send_ack(dev, flags);
+
+ /* cancel the urb request */
+ usb_kill_urb(phy->in_urb);
+}
+
+/* ACR122 specific structs and fucntions */
+
+/* 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
+
+
+struct pn533_acr122_ccid_hdr {
+ u8 type;
+ u32 datalen;
+ u8 slot;
+ u8 seq;
+
+ /*
+ * 3 msg specific bytes or status, error and 1 specific
+ * byte for reposnse msg
+ */
+ u8 params[3];
+ 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;
+ /* sizeof(apdu_hdr) + sizeof(datalen) */
+ frame->ccid.datalen = sizeof(frame->apdu) + 1;
+ 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 *dev)
+{
+ struct pn533_acr122_rx_frame *frame = _frame;
+
+ if (frame->ccid.type != 0x83)
+ return false;
+
+ if (!frame->ccid.datalen)
+ 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_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,
+};
+
+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;
+
+ dev_dbg(&urb->dev->dev, "%s\n", __func__);
+
+ print_hex_dump_debug("ACR122 RX: ", DUMP_PREFIX_NONE, 16, 1,
+ urb->transfer_buffer, urb->transfer_buffer_length,
+ false);
+
+ arg->rc = urb->status;
+ complete(&arg->done);
+}
+
+static int pn533_acr122_poweron_rdr(struct pn533_usb_phy *phy)
+{
+ /* Power on th reader (CCID cmd) */
+ u8 cmd[10] = {PN533_ACR122_PC_TO_RDR_ICCPOWERON,
+ 0, 0, 0, 0, 0, 0, 3, 0, 0};
+ int rc;
+ void *cntx;
+ struct pn533_acr122_poweron_rdr_arg arg;
+
+ dev_dbg(&phy->udev->dev, "%s\n", __func__);
+
+ init_completion(&arg.done);
+ cntx = phy->in_urb->context; /* backup context */
+
+ phy->in_urb->complete = pn533_acr122_poweron_rdr_resp;
+ phy->in_urb->context = &arg;
+
+ phy->out_urb->transfer_buffer = cmd;
+ phy->out_urb->transfer_buffer_length = sizeof(cmd);
+
+ print_hex_dump_debug("ACR122 TX: ", DUMP_PREFIX_NONE, 16, 1,
+ cmd, sizeof(cmd), false);
+
+ rc = usb_submit_urb(phy->out_urb, GFP_KERNEL);
+ if (rc) {
+ nfc_err(&phy->udev->dev,
+ "Reader power on cmd error %d\n", rc);
+ return rc;
+ }
+
+ rc = usb_submit_urb(phy->in_urb, GFP_KERNEL);
+ if (rc) {
+ nfc_err(&phy->udev->dev,
+ "Can't submit reader poweron cmd response %d\n", rc);
+ return rc;
+ }
+
+ wait_for_completion(&arg.done);
+ phy->in_urb->context = cntx; /* restore context */
+
+ return arg.rc;
+}
+
+static void pn533_send_complete(struct urb *urb)
+{
+ struct pn533_usb_phy *phy = urb->context;
+
+ switch (urb->status) {
+ case 0:
+ break; /* success */
+ case -ECONNRESET:
+ case -ENOENT:
+ dev_dbg(&phy->udev->dev,
+ "The urb has been stopped (status %d)\n",
+ urb->status);
+ break;
+ case -ESHUTDOWN:
+ default:
+ nfc_err(&phy->udev->dev,
+ "Urb failure (status %d)\n",
+ urb->status);
+ }
+}
+
+static struct pn533_phy_ops usb_phy_ops = {
+ .send_frame = pn533_usb_send_frame,
+ .send_ack = pn533_usb_send_ack,
+ .abort_cmd = pn533_usb_abort_cmd,
+};
+
+static int pn533_usb_probe(struct usb_interface *interface,
+ const struct usb_device_id *id)
+{
+ struct pn533 *priv;
+ struct pn533_usb_phy *phy;
+ 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;
+ enum pn533_protocol_type protocol_type = PN533_PROTO_REQ_ACK_RESP;
+ struct pn533_frame_ops *fops = NULL;
+ unsigned char *in_buf;
+ int in_buf_len = PN533_EXT_FRAME_HEADER_LEN +
+ PN533_STD_FRAME_MAX_PAYLOAD_LEN +
+ PN533_STD_FRAME_TAIL_LEN;
+
+ phy = devm_kzalloc(&interface->dev, sizeof(*phy), GFP_KERNEL);
+ if (!phy)
+ return -ENOMEM;
+
+ in_buf = kzalloc(in_buf_len, GFP_KERNEL);
+ if (!in_buf) {
+ rc = -ENOMEM;
+ goto out_free_phy;
+ }
+
+ phy->udev = usb_get_dev(interface_to_usbdev(interface));
+ phy->interface = interface;
+
+ iface_desc = interface->cur_altsetting;
+ for (i = 0; i < iface_desc->desc.bNumEndpoints; ++i) {
+ endpoint = &iface_desc->endpoint[i].desc;
+
+ if (!in_endpoint && usb_endpoint_is_bulk_in(endpoint))
+ in_endpoint = endpoint->bEndpointAddress;
+
+ if (!out_endpoint && usb_endpoint_is_bulk_out(endpoint))
+ out_endpoint = endpoint->bEndpointAddress;
+ }
+
+ if (!in_endpoint || !out_endpoint) {
+ nfc_err(&interface->dev,
+ "Could not find bulk-in or bulk-out endpoint\n");
+ rc = -ENODEV;
+ goto error;
+ }
+
+ phy->in_urb = usb_alloc_urb(0, GFP_KERNEL);
+ phy->out_urb = usb_alloc_urb(0, GFP_KERNEL);
+
+ if (!phy->in_urb || !phy->out_urb)
+ goto error;
+
+ usb_fill_bulk_urb(phy->in_urb, phy->udev,
+ usb_rcvbulkpipe(phy->udev, in_endpoint),
+ in_buf, in_buf_len, NULL, phy);
+
+ usb_fill_bulk_urb(phy->out_urb, phy->udev,
+ usb_sndbulkpipe(phy->udev, out_endpoint),
+ NULL, 0, pn533_send_complete, phy);
+
+
+ switch (id->driver_info) {
+ case PN533_DEVICE_STD:
+ protocols = PN533_ALL_PROTOCOLS;
+ break;
+
+ case PN533_DEVICE_PASORI:
+ protocols = PN533_NO_TYPE_B_PROTOCOLS;
+ break;
+
+ case PN533_DEVICE_ACR122U:
+ protocols = PN533_NO_TYPE_B_PROTOCOLS;
+ fops = &pn533_acr122_frame_ops;
+ protocol_type = PN533_PROTO_REQ_RESP,
+
+ rc = pn533_acr122_poweron_rdr(phy);
+ if (rc < 0) {
+ nfc_err(&interface->dev,
+ "Couldn't poweron the reader (error %d)\n", rc);
+ goto error;
+ }
+ break;
+
+ default:
+ nfc_err(&interface->dev, "Unknown device type %lu\n",
+ id->driver_info);
+ rc = -EINVAL;
+ goto error;
+ }
+
+ priv = pn533_register_device(id->driver_info, protocols, protocol_type,
+ phy, &usb_phy_ops, fops,
+ &phy->udev->dev);
+
+ if (IS_ERR(priv)) {
+ rc = PTR_ERR(priv);
+ goto error;
+ }
+
+ phy->priv = priv;
+ nfc_set_parent_dev(priv->nfc_dev, &interface->dev);
+
+ usb_set_intfdata(interface, phy);
+
+ return 0;
+
+error:
+ usb_free_urb(phy->in_urb);
+ usb_free_urb(phy->out_urb);
+ usb_put_dev(phy->udev);
+ kfree(in_buf);
+out_free_phy:
+ kfree(phy);
+ return rc;
+}
+
+static void pn533_usb_disconnect(struct usb_interface *interface)
+{
+ struct pn533_usb_phy *phy = usb_get_intfdata(interface);
+
+ if (!phy)
+ return;
+
+ pn533_unregister_device(phy->priv);
+
+ usb_set_intfdata(interface, NULL);
+
+ usb_kill_urb(phy->in_urb);
+ usb_kill_urb(phy->out_urb);
+
+ kfree(phy->in_urb->transfer_buffer);
+ usb_free_urb(phy->in_urb);
+ usb_free_urb(phy->out_urb);
+
+ nfc_info(&interface->dev, "NXP PN533 NFC device disconnected\n");
+}
+
+static struct usb_driver pn533_usb_driver = {
+ .name = "pn533_usb",
+ .probe = pn533_usb_probe,
+ .disconnect = pn533_usb_disconnect,
+ .id_table = pn533_usb_table,
+};
+
+module_usb_driver(pn533_usb_driver);
+
+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>");
+MODULE_DESCRIPTION("PN533 USB driver ver " VERSION);
+MODULE_VERSION(VERSION);
+MODULE_LICENSE("GPL");
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.