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authorLinus Torvalds <torvalds@linux-foundation.org>2013-07-09 18:24:39 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2013-07-09 18:24:39 -0700
commit496322bc91e35007ed754184dcd447a02b6dd685 (patch)
treef5298d0a74c0a6e65c0e98050b594b8d020904c1 /drivers/nfc
parent2e17c5a97e231f3cb426f4b7895eab5be5c5442e (diff)
parent56e0ef527b184b3de2d7f88c6190812b2b2ac6bf (diff)
downloadop-kernel-dev-496322bc91e35007ed754184dcd447a02b6dd685.zip
op-kernel-dev-496322bc91e35007ed754184dcd447a02b6dd685.tar.gz
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next
Pull networking updates from David Miller: "This is a re-do of the net-next pull request for the current merge window. The only difference from the one I made the other day is that this has Eliezer's interface renames and the timeout handling changes made based upon your feedback, as well as a few bug fixes that have trickeled in. Highlights: 1) Low latency device polling, eliminating the cost of interrupt handling and context switches. Allows direct polling of a network device from socket operations, such as recvmsg() and poll(). Currently ixgbe, mlx4, and bnx2x support this feature. Full high level description, performance numbers, and design in commit 0a4db187a999 ("Merge branch 'll_poll'") From Eliezer Tamir. 2) With the routing cache removed, ip_check_mc_rcu() gets exercised more than ever before in the case where we have lots of multicast addresses. Use a hash table instead of a simple linked list, from Eric Dumazet. 3) Add driver for Atheros CQA98xx 802.11ac wireless devices, from Bartosz Markowski, Janusz Dziedzic, Kalle Valo, Marek Kwaczynski, Marek Puzyniak, Michal Kazior, and Sujith Manoharan. 4) Support reporting the TUN device persist flag to userspace, from Pavel Emelyanov. 5) Allow controlling network device VF link state using netlink, from Rony Efraim. 6) Support GRE tunneling in openvswitch, from Pravin B Shelar. 7) Adjust SOCK_MIN_RCVBUF and SOCK_MIN_SNDBUF for modern times, from Daniel Borkmann and Eric Dumazet. 8) Allow controlling of TCP quickack behavior on a per-route basis, from Cong Wang. 9) Several bug fixes and improvements to vxlan from Stephen Hemminger, Pravin B Shelar, and Mike Rapoport. In particular, support receiving on multiple UDP ports. 10) Major cleanups, particular in the area of debugging and cookie lifetime handline, to the SCTP protocol code. From Daniel Borkmann. 11) Allow packets to cross network namespaces when traversing tunnel devices. From Nicolas Dichtel. 12) Allow monitoring netlink traffic via AF_PACKET sockets, in a manner akin to how we monitor real network traffic via ptype_all. From Daniel Borkmann. 13) Several bug fixes and improvements for the new alx device driver, from Johannes Berg. 14) Fix scalability issues in the netem packet scheduler's time queue, by using an rbtree. From Eric Dumazet. 15) Several bug fixes in TCP loss recovery handling, from Yuchung Cheng. 16) Add support for GSO segmentation of MPLS packets, from Simon Horman. 17) Make network notifiers have a real data type for the opaque pointer that's passed into them. Use this to properly handle network device flag changes in arp_netdev_event(). From Jiri Pirko and Timo Teräs. 18) Convert several drivers over to module_pci_driver(), from Peter Huewe. 19) tcp_fixup_rcvbuf() can loop 500 times over loopback, just use a O(1) calculation instead. From Eric Dumazet. 20) Support setting of explicit tunnel peer addresses in ipv6, just like ipv4. From Nicolas Dichtel. 21) Protect x86 BPF JIT against spraying attacks, from Eric Dumazet. 22) Prevent a single high rate flow from overruning an individual cpu during RX packet processing via selective flow shedding. From Willem de Bruijn. 23) Don't use spinlocks in TCP md5 signing fast paths, from Eric Dumazet. 24) Don't just drop GSO packets which are above the TBF scheduler's burst limit, chop them up so they are in-bounds instead. Also from Eric Dumazet. 25) VLAN offloads are missed when configured on top of a bridge, fix from Vlad Yasevich. 26) Support IPV6 in ping sockets. From Lorenzo Colitti. 27) Receive flow steering targets should be updated at poll() time too, from David Majnemer. 28) Fix several corner case regressions in PMTU/redirect handling due to the routing cache removal, from Timo Teräs. 29) We have to be mindful of ipv4 mapped ipv6 sockets in upd_v6_push_pending_frames(). From Hannes Frederic Sowa. 30) Fix L2TP sequence number handling bugs, from James Chapman." * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next: (1214 commits) drivers/net: caif: fix wrong rtnl_is_locked() usage drivers/net: enic: release rtnl_lock on error-path vhost-net: fix use-after-free in vhost_net_flush net: mv643xx_eth: do not use port number as platform device id net: sctp: confirm route during forward progress virtio_net: fix race in RX VQ processing virtio: support unlocked queue poll net/cadence/macb: fix bug/typo in extracting gem_irq_read_clear bit Documentation: Fix references to defunct linux-net@vger.kernel.org net/fs: change busy poll time accounting net: rename low latency sockets functions to busy poll bridge: fix some kernel warning in multicast timer sfc: Fix memory leak when discarding scattered packets sit: fix tunnel update via netlink dt:net:stmmac: Add dt specific phy reset callback support. dt:net:stmmac: Add support to dwmac version 3.610 and 3.710 dt:net:stmmac: Allocate platform data only if its NULL. net:stmmac: fix memleak in the open method ipv6: rt6_check_neigh should successfully verify neigh if no NUD information are available net: ipv6: fix wrong ping_v6_sendmsg return value ...
Diffstat (limited to 'drivers/nfc')
-rw-r--r--drivers/nfc/Kconfig10
-rw-r--r--drivers/nfc/Makefile1
-rw-r--r--drivers/nfc/mei_phy.c6
-rw-r--r--drivers/nfc/microread/microread.c6
-rw-r--r--drivers/nfc/nfcsim.c541
-rw-r--r--drivers/nfc/nfcwilink.c18
-rw-r--r--drivers/nfc/pn533.c31
-rw-r--r--drivers/nfc/pn544/pn544.c40
8 files changed, 604 insertions, 49 deletions
diff --git a/drivers/nfc/Kconfig b/drivers/nfc/Kconfig
index 74a852e..b0b64cc 100644
--- a/drivers/nfc/Kconfig
+++ b/drivers/nfc/Kconfig
@@ -36,6 +36,16 @@ config NFC_MEI_PHY
If unsure, say N.
+config NFC_SIM
+ tristate "NFC hardware simulator driver"
+ help
+ This driver declares two virtual NFC devices supporting NFC-DEP
+ protocol. An LLCP connection can be established between them and
+ all packets sent from one device is sent back to the other, acting as
+ loopback devices.
+
+ If unsure, say N.
+
source "drivers/nfc/pn544/Kconfig"
source "drivers/nfc/microread/Kconfig"
diff --git a/drivers/nfc/Makefile b/drivers/nfc/Makefile
index aa6bd65..be7636a 100644
--- a/drivers/nfc/Makefile
+++ b/drivers/nfc/Makefile
@@ -7,5 +7,6 @@ obj-$(CONFIG_NFC_MICROREAD) += microread/
obj-$(CONFIG_NFC_PN533) += pn533.o
obj-$(CONFIG_NFC_WILINK) += nfcwilink.o
obj-$(CONFIG_NFC_MEI_PHY) += mei_phy.o
+obj-$(CONFIG_NFC_SIM) += nfcsim.o
ccflags-$(CONFIG_NFC_DEBUG) := -DDEBUG
diff --git a/drivers/nfc/mei_phy.c b/drivers/nfc/mei_phy.c
index 1201bdb..606bf55 100644
--- a/drivers/nfc/mei_phy.c
+++ b/drivers/nfc/mei_phy.c
@@ -30,7 +30,7 @@ struct mei_nfc_hdr {
u16 req_id;
u32 reserved;
u16 data_size;
-} __attribute__((packed));
+} __packed;
#define MEI_NFC_MAX_READ (MEI_NFC_HEADER_SIZE + MEI_NFC_MAX_HCI_PAYLOAD)
@@ -60,8 +60,8 @@ int nfc_mei_phy_enable(void *phy_id)
r = mei_cl_enable_device(phy->device);
if (r < 0) {
- pr_err("MEI_PHY: Could not enable device\n");
- return r;
+ pr_err("MEI_PHY: Could not enable device\n");
+ return r;
}
r = mei_cl_register_event_cb(phy->device, nfc_mei_event_cb, phy);
diff --git a/drivers/nfc/microread/microread.c b/drivers/nfc/microread/microread.c
index 3420d83..cdb9f6d 100644
--- a/drivers/nfc/microread/microread.c
+++ b/drivers/nfc/microread/microread.c
@@ -650,7 +650,7 @@ int microread_probe(void *phy_id, struct nfc_phy_ops *phy_ops, char *llc_name,
{
struct microread_info *info;
unsigned long quirks = 0;
- u32 protocols, se;
+ u32 protocols;
struct nfc_hci_init_data init_data;
int r;
@@ -678,10 +678,8 @@ int microread_probe(void *phy_id, struct nfc_phy_ops *phy_ops, char *llc_name,
NFC_PROTO_ISO14443_B_MASK |
NFC_PROTO_NFC_DEP_MASK;
- se = NFC_SE_UICC | NFC_SE_EMBEDDED;
-
info->hdev = nfc_hci_allocate_device(&microread_hci_ops, &init_data,
- quirks, protocols, se, llc_name,
+ quirks, protocols, llc_name,
phy_headroom +
MICROREAD_CMDS_HEADROOM,
phy_tailroom +
diff --git a/drivers/nfc/nfcsim.c b/drivers/nfc/nfcsim.c
new file mode 100644
index 0000000..c5c30fb
--- /dev/null
+++ b/drivers/nfc/nfcsim.c
@@ -0,0 +1,541 @@
+/*
+ * NFC hardware simulation driver
+ * Copyright (c) 2013, Intel Corporation.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope 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.
+ *
+ */
+
+#include <linux/device.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/nfc.h>
+#include <net/nfc/nfc.h>
+
+#define DEV_ERR(_dev, fmt, args...) nfc_dev_err(&_dev->nfc_dev->dev, \
+ "%s: " fmt, __func__, ## args)
+
+#define DEV_DBG(_dev, fmt, args...) nfc_dev_dbg(&_dev->nfc_dev->dev, \
+ "%s: " fmt, __func__, ## args)
+
+#define NFCSIM_VERSION "0.1"
+
+#define NFCSIM_POLL_NONE 0
+#define NFCSIM_POLL_INITIATOR 1
+#define NFCSIM_POLL_TARGET 2
+#define NFCSIM_POLL_DUAL (NFCSIM_POLL_INITIATOR | NFCSIM_POLL_TARGET)
+
+struct nfcsim {
+ struct nfc_dev *nfc_dev;
+
+ struct mutex lock;
+
+ struct delayed_work recv_work;
+
+ struct sk_buff *clone_skb;
+
+ struct delayed_work poll_work;
+ u8 polling_mode;
+ u8 curr_polling_mode;
+
+ u8 shutting_down;
+
+ u8 up;
+
+ u8 initiator;
+
+ data_exchange_cb_t cb;
+ void *cb_context;
+
+ struct nfcsim *peer_dev;
+};
+
+static struct nfcsim *dev0;
+static struct nfcsim *dev1;
+
+struct workqueue_struct *wq;
+
+static void nfcsim_cleanup_dev(struct nfcsim *dev, u8 shutdown)
+{
+ DEV_DBG(dev, "shutdown=%d", shutdown);
+
+ mutex_lock(&dev->lock);
+
+ dev->polling_mode = NFCSIM_POLL_NONE;
+ dev->shutting_down = shutdown;
+ dev->cb = NULL;
+ dev_kfree_skb(dev->clone_skb);
+ dev->clone_skb = NULL;
+
+ mutex_unlock(&dev->lock);
+
+ cancel_delayed_work_sync(&dev->poll_work);
+ cancel_delayed_work_sync(&dev->recv_work);
+}
+
+static int nfcsim_target_found(struct nfcsim *dev)
+{
+ struct nfc_target nfc_tgt;
+
+ DEV_DBG(dev, "");
+
+ memset(&nfc_tgt, 0, sizeof(struct nfc_target));
+
+ nfc_tgt.supported_protocols = NFC_PROTO_NFC_DEP_MASK;
+ nfc_targets_found(dev->nfc_dev, &nfc_tgt, 1);
+
+ return 0;
+}
+
+static int nfcsim_dev_up(struct nfc_dev *nfc_dev)
+{
+ struct nfcsim *dev = nfc_get_drvdata(nfc_dev);
+
+ DEV_DBG(dev, "");
+
+ mutex_lock(&dev->lock);
+
+ dev->up = 1;
+
+ mutex_unlock(&dev->lock);
+
+ return 0;
+}
+
+static int nfcsim_dev_down(struct nfc_dev *nfc_dev)
+{
+ struct nfcsim *dev = nfc_get_drvdata(nfc_dev);
+
+ DEV_DBG(dev, "");
+
+ mutex_lock(&dev->lock);
+
+ dev->up = 0;
+
+ mutex_unlock(&dev->lock);
+
+ return 0;
+}
+
+static int nfcsim_dep_link_up(struct nfc_dev *nfc_dev,
+ struct nfc_target *target,
+ u8 comm_mode, u8 *gb, size_t gb_len)
+{
+ int rc;
+ struct nfcsim *dev = nfc_get_drvdata(nfc_dev);
+ struct nfcsim *peer = dev->peer_dev;
+ u8 *remote_gb;
+ size_t remote_gb_len;
+
+ DEV_DBG(dev, "target_idx: %d, comm_mode: %d\n", target->idx, comm_mode);
+
+ mutex_lock(&peer->lock);
+
+ nfc_tm_activated(peer->nfc_dev, NFC_PROTO_NFC_DEP_MASK,
+ NFC_COMM_ACTIVE, gb, gb_len);
+
+ remote_gb = nfc_get_local_general_bytes(peer->nfc_dev, &remote_gb_len);
+ if (!remote_gb) {
+ DEV_ERR(peer, "Can't get remote general bytes");
+
+ mutex_unlock(&peer->lock);
+ return -EINVAL;
+ }
+
+ mutex_unlock(&peer->lock);
+
+ mutex_lock(&dev->lock);
+
+ rc = nfc_set_remote_general_bytes(nfc_dev, remote_gb, remote_gb_len);
+ if (rc) {
+ DEV_ERR(dev, "Can't set remote general bytes");
+ mutex_unlock(&dev->lock);
+ return rc;
+ }
+
+ rc = nfc_dep_link_is_up(nfc_dev, target->idx, NFC_COMM_ACTIVE,
+ NFC_RF_INITIATOR);
+
+ mutex_unlock(&dev->lock);
+
+ return rc;
+}
+
+static int nfcsim_dep_link_down(struct nfc_dev *nfc_dev)
+{
+ struct nfcsim *dev = nfc_get_drvdata(nfc_dev);
+
+ DEV_DBG(dev, "");
+
+ nfcsim_cleanup_dev(dev, 0);
+
+ return 0;
+}
+
+static int nfcsim_start_poll(struct nfc_dev *nfc_dev,
+ u32 im_protocols, u32 tm_protocols)
+{
+ struct nfcsim *dev = nfc_get_drvdata(nfc_dev);
+ int rc;
+
+ mutex_lock(&dev->lock);
+
+ if (dev->polling_mode != NFCSIM_POLL_NONE) {
+ DEV_ERR(dev, "Already in polling mode");
+ rc = -EBUSY;
+ goto exit;
+ }
+
+ if (im_protocols & NFC_PROTO_NFC_DEP_MASK)
+ dev->polling_mode |= NFCSIM_POLL_INITIATOR;
+
+ if (tm_protocols & NFC_PROTO_NFC_DEP_MASK)
+ dev->polling_mode |= NFCSIM_POLL_TARGET;
+
+ if (dev->polling_mode == NFCSIM_POLL_NONE) {
+ DEV_ERR(dev, "Unsupported polling mode");
+ rc = -EINVAL;
+ goto exit;
+ }
+
+ dev->initiator = 0;
+ dev->curr_polling_mode = NFCSIM_POLL_NONE;
+
+ queue_delayed_work(wq, &dev->poll_work, 0);
+
+ DEV_DBG(dev, "Start polling: im: 0x%X, tm: 0x%X", im_protocols,
+ tm_protocols);
+
+ rc = 0;
+exit:
+ mutex_unlock(&dev->lock);
+
+ return rc;
+}
+
+static void nfcsim_stop_poll(struct nfc_dev *nfc_dev)
+{
+ struct nfcsim *dev = nfc_get_drvdata(nfc_dev);
+
+ DEV_DBG(dev, "Stop poll");
+
+ mutex_lock(&dev->lock);
+
+ dev->polling_mode = NFCSIM_POLL_NONE;
+
+ mutex_unlock(&dev->lock);
+
+ cancel_delayed_work_sync(&dev->poll_work);
+}
+
+static int nfcsim_activate_target(struct nfc_dev *nfc_dev,
+ struct nfc_target *target, u32 protocol)
+{
+ struct nfcsim *dev = nfc_get_drvdata(nfc_dev);
+
+ DEV_DBG(dev, "");
+
+ return -ENOTSUPP;
+}
+
+static void nfcsim_deactivate_target(struct nfc_dev *nfc_dev,
+ struct nfc_target *target)
+{
+ struct nfcsim *dev = nfc_get_drvdata(nfc_dev);
+
+ DEV_DBG(dev, "");
+}
+
+static void nfcsim_wq_recv(struct work_struct *work)
+{
+ struct nfcsim *dev = container_of(work, struct nfcsim,
+ recv_work.work);
+
+ mutex_lock(&dev->lock);
+
+ if (dev->shutting_down || !dev->up || !dev->clone_skb) {
+ dev_kfree_skb(dev->clone_skb);
+ goto exit;
+ }
+
+ if (dev->initiator) {
+ if (!dev->cb) {
+ DEV_ERR(dev, "Null recv callback");
+ dev_kfree_skb(dev->clone_skb);
+ goto exit;
+ }
+
+ dev->cb(dev->cb_context, dev->clone_skb, 0);
+ dev->cb = NULL;
+ } else {
+ nfc_tm_data_received(dev->nfc_dev, dev->clone_skb);
+ }
+
+exit:
+ dev->clone_skb = NULL;
+
+ mutex_unlock(&dev->lock);
+}
+
+static int nfcsim_tx(struct nfc_dev *nfc_dev, struct nfc_target *target,
+ struct sk_buff *skb, data_exchange_cb_t cb,
+ void *cb_context)
+{
+ struct nfcsim *dev = nfc_get_drvdata(nfc_dev);
+ struct nfcsim *peer = dev->peer_dev;
+ int err;
+
+ mutex_lock(&dev->lock);
+
+ if (dev->shutting_down || !dev->up) {
+ mutex_unlock(&dev->lock);
+ err = -ENODEV;
+ goto exit;
+ }
+
+ dev->cb = cb;
+ dev->cb_context = cb_context;
+
+ mutex_unlock(&dev->lock);
+
+ mutex_lock(&peer->lock);
+
+ peer->clone_skb = skb_clone(skb, GFP_KERNEL);
+
+ if (!peer->clone_skb) {
+ DEV_ERR(dev, "skb_clone failed");
+ mutex_unlock(&peer->lock);
+ err = -ENOMEM;
+ goto exit;
+ }
+
+ /* This simulates an arbitrary transmission delay between the 2 devices.
+ * If packet transmission occurs immediately between them, we have a
+ * non-stop flow of several tens of thousands SYMM packets per second
+ * and a burning cpu.
+ *
+ * TODO: Add support for a sysfs entry to control this delay.
+ */
+ queue_delayed_work(wq, &peer->recv_work, msecs_to_jiffies(5));
+
+ mutex_unlock(&peer->lock);
+
+ err = 0;
+exit:
+ dev_kfree_skb(skb);
+
+ return err;
+}
+
+static int nfcsim_im_transceive(struct nfc_dev *nfc_dev,
+ struct nfc_target *target, struct sk_buff *skb,
+ data_exchange_cb_t cb, void *cb_context)
+{
+ return nfcsim_tx(nfc_dev, target, skb, cb, cb_context);
+}
+
+static int nfcsim_tm_send(struct nfc_dev *nfc_dev, struct sk_buff *skb)
+{
+ return nfcsim_tx(nfc_dev, NULL, skb, NULL, NULL);
+}
+
+static struct nfc_ops nfcsim_nfc_ops = {
+ .dev_up = nfcsim_dev_up,
+ .dev_down = nfcsim_dev_down,
+ .dep_link_up = nfcsim_dep_link_up,
+ .dep_link_down = nfcsim_dep_link_down,
+ .start_poll = nfcsim_start_poll,
+ .stop_poll = nfcsim_stop_poll,
+ .activate_target = nfcsim_activate_target,
+ .deactivate_target = nfcsim_deactivate_target,
+ .im_transceive = nfcsim_im_transceive,
+ .tm_send = nfcsim_tm_send,
+};
+
+static void nfcsim_set_polling_mode(struct nfcsim *dev)
+{
+ if (dev->polling_mode == NFCSIM_POLL_NONE) {
+ dev->curr_polling_mode = NFCSIM_POLL_NONE;
+ return;
+ }
+
+ if (dev->curr_polling_mode == NFCSIM_POLL_NONE) {
+ if (dev->polling_mode & NFCSIM_POLL_INITIATOR)
+ dev->curr_polling_mode = NFCSIM_POLL_INITIATOR;
+ else
+ dev->curr_polling_mode = NFCSIM_POLL_TARGET;
+
+ return;
+ }
+
+ if (dev->polling_mode == NFCSIM_POLL_DUAL) {
+ if (dev->curr_polling_mode == NFCSIM_POLL_TARGET)
+ dev->curr_polling_mode = NFCSIM_POLL_INITIATOR;
+ else
+ dev->curr_polling_mode = NFCSIM_POLL_TARGET;
+ }
+}
+
+static void nfcsim_wq_poll(struct work_struct *work)
+{
+ struct nfcsim *dev = container_of(work, struct nfcsim, poll_work.work);
+ struct nfcsim *peer = dev->peer_dev;
+
+ /* These work items run on an ordered workqueue and are therefore
+ * serialized. So we can take both mutexes without being dead locked.
+ */
+ mutex_lock(&dev->lock);
+ mutex_lock(&peer->lock);
+
+ nfcsim_set_polling_mode(dev);
+
+ if (dev->curr_polling_mode == NFCSIM_POLL_NONE) {
+ DEV_DBG(dev, "Not polling");
+ goto unlock;
+ }
+
+ DEV_DBG(dev, "Polling as %s",
+ dev->curr_polling_mode == NFCSIM_POLL_INITIATOR ?
+ "initiator" : "target");
+
+ if (dev->curr_polling_mode == NFCSIM_POLL_TARGET)
+ goto sched_work;
+
+ if (peer->curr_polling_mode == NFCSIM_POLL_TARGET) {
+ peer->polling_mode = NFCSIM_POLL_NONE;
+ dev->polling_mode = NFCSIM_POLL_NONE;
+
+ dev->initiator = 1;
+
+ nfcsim_target_found(dev);
+
+ goto unlock;
+ }
+
+sched_work:
+ /* This defines the delay for an initiator to check if the other device
+ * is polling in target mode.
+ * If the device starts in dual mode polling, it switches between
+ * initiator and target at every round.
+ * Because the wq is ordered and only 1 work item is executed at a time,
+ * we'll always have one device polling as initiator and the other as
+ * target at some point, even if both are started in dual mode.
+ */
+ queue_delayed_work(wq, &dev->poll_work, msecs_to_jiffies(200));
+
+unlock:
+ mutex_unlock(&peer->lock);
+ mutex_unlock(&dev->lock);
+}
+
+static struct nfcsim *nfcsim_init_dev(void)
+{
+ struct nfcsim *dev;
+ int rc = -ENOMEM;
+
+ dev = kzalloc(sizeof(*dev), GFP_KERNEL);
+ if (dev == NULL)
+ return ERR_PTR(-ENOMEM);
+
+ mutex_init(&dev->lock);
+
+ INIT_DELAYED_WORK(&dev->recv_work, nfcsim_wq_recv);
+ INIT_DELAYED_WORK(&dev->poll_work, nfcsim_wq_poll);
+
+ dev->nfc_dev = nfc_allocate_device(&nfcsim_nfc_ops,
+ NFC_PROTO_NFC_DEP_MASK,
+ 0, 0);
+ if (!dev->nfc_dev)
+ goto error;
+
+ nfc_set_drvdata(dev->nfc_dev, dev);
+
+ rc = nfc_register_device(dev->nfc_dev);
+ if (rc)
+ goto free_nfc_dev;
+
+ return dev;
+
+free_nfc_dev:
+ nfc_free_device(dev->nfc_dev);
+
+error:
+ kfree(dev);
+
+ return ERR_PTR(rc);
+}
+
+static void nfcsim_free_device(struct nfcsim *dev)
+{
+ nfc_unregister_device(dev->nfc_dev);
+
+ nfc_free_device(dev->nfc_dev);
+
+ kfree(dev);
+}
+
+int __init nfcsim_init(void)
+{
+ int rc;
+
+ /* We need an ordered wq to ensure that poll_work items are executed
+ * one at a time.
+ */
+ wq = alloc_ordered_workqueue("nfcsim", 0);
+ if (!wq) {
+ rc = -ENOMEM;
+ goto exit;
+ }
+
+ dev0 = nfcsim_init_dev();
+ if (IS_ERR(dev0)) {
+ rc = PTR_ERR(dev0);
+ goto exit;
+ }
+
+ dev1 = nfcsim_init_dev();
+ if (IS_ERR(dev1)) {
+ kfree(dev0);
+
+ rc = PTR_ERR(dev1);
+ goto exit;
+ }
+
+ dev0->peer_dev = dev1;
+ dev1->peer_dev = dev0;
+
+ pr_debug("NFCsim " NFCSIM_VERSION " initialized\n");
+
+ rc = 0;
+exit:
+ if (rc)
+ pr_err("Failed to initialize nfcsim driver (%d)\n",
+ rc);
+
+ return rc;
+}
+
+void __exit nfcsim_exit(void)
+{
+ nfcsim_cleanup_dev(dev0, 1);
+ nfcsim_cleanup_dev(dev1, 1);
+
+ nfcsim_free_device(dev0);
+ nfcsim_free_device(dev1);
+
+ destroy_workqueue(wq);
+}
+
+module_init(nfcsim_init);
+module_exit(nfcsim_exit);
+
+MODULE_DESCRIPTION("NFCSim driver ver " NFCSIM_VERSION);
+MODULE_VERSION(NFCSIM_VERSION);
+MODULE_LICENSE("GPL");
diff --git a/drivers/nfc/nfcwilink.c b/drivers/nfc/nfcwilink.c
index 3b731ac..59f95d8 100644
--- a/drivers/nfc/nfcwilink.c
+++ b/drivers/nfc/nfcwilink.c
@@ -109,7 +109,7 @@ enum {
NFCWILINK_FW_DOWNLOAD,
};
-static int nfcwilink_send(struct sk_buff *skb);
+static int nfcwilink_send(struct nci_dev *ndev, struct sk_buff *skb);
static inline struct sk_buff *nfcwilink_skb_alloc(unsigned int len, gfp_t how)
{
@@ -156,8 +156,6 @@ static int nfcwilink_get_bts_file_name(struct nfcwilink *drv, char *file_name)
return -ENOMEM;
}
- skb->dev = (void *)drv->ndev;
-
cmd = (struct nci_vs_nfcc_info_cmd *)
skb_put(skb, sizeof(struct nci_vs_nfcc_info_cmd));
cmd->gid = NCI_VS_NFCC_INFO_CMD_GID;
@@ -166,7 +164,7 @@ static int nfcwilink_get_bts_file_name(struct nfcwilink *drv, char *file_name)
drv->nfcc_info.plen = 0;
- rc = nfcwilink_send(skb);
+ rc = nfcwilink_send(drv->ndev, skb);
if (rc)
return rc;
@@ -232,11 +230,9 @@ static int nfcwilink_send_bts_cmd(struct nfcwilink *drv, __u8 *data, int len)
return -ENOMEM;
}
- skb->dev = (void *)drv->ndev;
-
memcpy(skb_put(skb, len), data, len);
- rc = nfcwilink_send(skb);
+ rc = nfcwilink_send(drv->ndev, skb);
if (rc)
return rc;
@@ -371,10 +367,8 @@ static long nfcwilink_receive(void *priv_data, struct sk_buff *skb)
return 0;
}
- skb->dev = (void *) drv->ndev;
-
/* Forward skb to NCI core layer */
- rc = nci_recv_frame(skb);
+ rc = nci_recv_frame(drv->ndev, skb);
if (rc < 0) {
nfc_dev_err(&drv->pdev->dev, "nci_recv_frame failed %d", rc);
return rc;
@@ -480,9 +474,8 @@ static int nfcwilink_close(struct nci_dev *ndev)
return rc;
}
-static int nfcwilink_send(struct sk_buff *skb)
+static int nfcwilink_send(struct nci_dev *ndev, struct sk_buff *skb)
{
- struct nci_dev *ndev = (struct nci_dev *)skb->dev;
struct nfcwilink *drv = nci_get_drvdata(ndev);
struct nfcwilink_hdr hdr = {NFCWILINK_CHNL, NFCWILINK_OPCODE, 0x0000};
long len;
@@ -542,7 +535,6 @@ static int nfcwilink_probe(struct platform_device *pdev)
drv->ndev = nci_allocate_device(&nfcwilink_ops,
protocols,
- NFC_SE_NONE,
NFCWILINK_HDR_LEN,
0);
if (!drv->ndev) {
diff --git a/drivers/nfc/pn533.c b/drivers/nfc/pn533.c
index ec269e6..daf92ac 100644
--- a/drivers/nfc/pn533.c
+++ b/drivers/nfc/pn533.c
@@ -258,7 +258,7 @@ static const struct pn533_poll_modulations poll_mod[] = {
.opcode = PN533_FELICA_OPC_SENSF_REQ,
.sc = PN533_FELICA_SENSF_SC_ALL,
.rc = PN533_FELICA_SENSF_RC_NO_SYSTEM_CODE,
- .tsn = 0,
+ .tsn = 0x03,
},
},
.len = 7,
@@ -271,7 +271,7 @@ static const struct pn533_poll_modulations poll_mod[] = {
.opcode = PN533_FELICA_OPC_SENSF_REQ,
.sc = PN533_FELICA_SENSF_SC_ALL,
.rc = PN533_FELICA_SENSF_RC_NO_SYSTEM_CODE,
- .tsn = 0,
+ .tsn = 0x03,
},
},
.len = 7,
@@ -1235,7 +1235,7 @@ static int pn533_target_found_type_a(struct nfc_target *nfc_tgt, u8 *tgt_data,
struct pn533_target_felica {
u8 pol_res;
u8 opcode;
- u8 nfcid2[8];
+ u8 nfcid2[NFC_NFCID2_MAXSIZE];
u8 pad[8];
/* optional */
u8 syst_code[];
@@ -1275,6 +1275,9 @@ static int pn533_target_found_felica(struct nfc_target *nfc_tgt, u8 *tgt_data,
memcpy(nfc_tgt->sensf_res, &tgt_felica->opcode, 9);
nfc_tgt->sensf_res_len = 9;
+ memcpy(nfc_tgt->nfcid2, tgt_felica->nfcid2, NFC_NFCID2_MAXSIZE);
+ nfc_tgt->nfcid2_len = NFC_NFCID2_MAXSIZE;
+
return 0;
}
@@ -2084,6 +2087,9 @@ static int pn533_dep_link_up(struct nfc_dev *nfc_dev, struct nfc_target *target,
if (comm_mode == NFC_COMM_PASSIVE)
skb_len += PASSIVE_DATA_LEN;
+ if (target && target->nfcid2_len)
+ skb_len += NFC_NFCID3_MAXSIZE;
+
skb = pn533_alloc_skb(dev, skb_len);
if (!skb)
return -ENOMEM;
@@ -2100,6 +2106,12 @@ static int pn533_dep_link_up(struct nfc_dev *nfc_dev, struct nfc_target *target,
*next |= 1;
}
+ if (target && target->nfcid2_len) {
+ memcpy(skb_put(skb, NFC_NFCID3_MAXSIZE), target->nfcid2,
+ target->nfcid2_len);
+ *next |= 2;
+ }
+
if (gb != NULL && gb_len > 0) {
memcpy(skb_put(skb, gb_len), gb, gb_len);
*next |= 4; /* We have some Gi */
@@ -2489,7 +2501,7 @@ static void pn533_acr122_poweron_rdr_resp(struct urb *urb)
nfc_dev_dbg(&urb->dev->dev, "%s", __func__);
- print_hex_dump(KERN_ERR, "ACR122 RX: ", DUMP_PREFIX_NONE, 16, 1,
+ print_hex_dump_debug("ACR122 RX: ", DUMP_PREFIX_NONE, 16, 1,
urb->transfer_buffer, urb->transfer_buffer_length,
false);
@@ -2520,7 +2532,7 @@ static int pn533_acr122_poweron_rdr(struct pn533 *dev)
dev->out_urb->transfer_buffer = cmd;
dev->out_urb->transfer_buffer_length = sizeof(cmd);
- print_hex_dump(KERN_ERR, "ACR122 TX: ", DUMP_PREFIX_NONE, 16, 1,
+ print_hex_dump_debug("ACR122 TX: ", DUMP_PREFIX_NONE, 16, 1,
cmd, sizeof(cmd), false);
rc = usb_submit_urb(dev->out_urb, GFP_KERNEL);
@@ -2774,17 +2786,18 @@ static int pn533_probe(struct usb_interface *interface,
goto destroy_wq;
nfc_dev_info(&dev->interface->dev,
- "NXP PN533 firmware ver %d.%d now attached",
- fw_ver.ver, fw_ver.rev);
+ "NXP PN5%02X firmware ver %d.%d now attached",
+ fw_ver.ic, fw_ver.ver, fw_ver.rev);
dev->nfc_dev = nfc_allocate_device(&pn533_nfc_ops, protocols,
- NFC_SE_NONE,
dev->ops->tx_header_len +
PN533_CMD_DATAEXCH_HEAD_LEN,
dev->ops->tx_tail_len);
- if (!dev->nfc_dev)
+ if (!dev->nfc_dev) {
+ rc = -ENOMEM;
goto destroy_wq;
+ }
nfc_set_parent_dev(dev->nfc_dev, &interface->dev);
nfc_set_drvdata(dev->nfc_dev, dev);
diff --git a/drivers/nfc/pn544/pn544.c b/drivers/nfc/pn544/pn544.c
index 9c5f16e..0d17da7 100644
--- a/drivers/nfc/pn544/pn544.c
+++ b/drivers/nfc/pn544/pn544.c
@@ -551,20 +551,25 @@ static int pn544_hci_complete_target_discovered(struct nfc_hci_dev *hdev,
return -EPROTO;
}
- r = nfc_hci_send_cmd(hdev, PN544_RF_READER_F_GATE,
- PN544_RF_READER_CMD_ACTIVATE_NEXT,
- uid_skb->data, uid_skb->len, NULL);
- kfree_skb(uid_skb);
-
- r = nfc_hci_send_cmd(hdev,
+ /* Type F NFC-DEP IDm has prefix 0x01FE */
+ if ((uid_skb->data[0] == 0x01) && (uid_skb->data[1] == 0xfe)) {
+ kfree_skb(uid_skb);
+ r = nfc_hci_send_cmd(hdev,
PN544_RF_READER_NFCIP1_INITIATOR_GATE,
PN544_HCI_CMD_CONTINUE_ACTIVATION,
NULL, 0, NULL);
- if (r < 0)
- return r;
+ if (r < 0)
+ return r;
- target->hci_reader_gate = PN544_RF_READER_NFCIP1_INITIATOR_GATE;
- target->supported_protocols = NFC_PROTO_NFC_DEP_MASK;
+ target->supported_protocols = NFC_PROTO_NFC_DEP_MASK;
+ target->hci_reader_gate =
+ PN544_RF_READER_NFCIP1_INITIATOR_GATE;
+ } else {
+ r = nfc_hci_send_cmd(hdev, PN544_RF_READER_F_GATE,
+ PN544_RF_READER_CMD_ACTIVATE_NEXT,
+ uid_skb->data, uid_skb->len, NULL);
+ kfree_skb(uid_skb);
+ }
} else if (target->supported_protocols & NFC_PROTO_ISO14443_MASK) {
/*
* TODO: maybe other ISO 14443 require some kind of continue
@@ -706,12 +711,9 @@ static int pn544_hci_check_presence(struct nfc_hci_dev *hdev,
return nfc_hci_send_cmd(hdev, NFC_HCI_RF_READER_A_GATE,
PN544_RF_READER_CMD_ACTIVATE_NEXT,
target->nfcid1, target->nfcid1_len, NULL);
- } else if (target->supported_protocols & NFC_PROTO_JEWEL_MASK) {
- return nfc_hci_send_cmd(hdev, target->hci_reader_gate,
- PN544_JEWEL_RAW_CMD, NULL, 0, NULL);
- } else if (target->supported_protocols & NFC_PROTO_FELICA_MASK) {
- return nfc_hci_send_cmd(hdev, PN544_RF_READER_F_GATE,
- PN544_FELICA_RAW, NULL, 0, NULL);
+ } else if (target->supported_protocols & (NFC_PROTO_JEWEL_MASK |
+ NFC_PROTO_FELICA_MASK)) {
+ return -EOPNOTSUPP;
} else if (target->supported_protocols & NFC_PROTO_NFC_DEP_MASK) {
return nfc_hci_send_cmd(hdev, target->hci_reader_gate,
PN544_HCI_CMD_ATTREQUEST,
@@ -801,7 +803,7 @@ int pn544_hci_probe(void *phy_id, struct nfc_phy_ops *phy_ops, char *llc_name,
struct nfc_hci_dev **hdev)
{
struct pn544_hci_info *info;
- u32 protocols, se;
+ u32 protocols;
struct nfc_hci_init_data init_data;
int r;
@@ -834,10 +836,8 @@ int pn544_hci_probe(void *phy_id, struct nfc_phy_ops *phy_ops, char *llc_name,
NFC_PROTO_ISO14443_B_MASK |
NFC_PROTO_NFC_DEP_MASK;
- se = NFC_SE_UICC | NFC_SE_EMBEDDED;
-
info->hdev = nfc_hci_allocate_device(&pn544_hci_ops, &init_data, 0,
- protocols, se, llc_name,
+ protocols, llc_name,
phy_headroom + PN544_CMDS_HEADROOM,
phy_tailroom, phy_payload);
if (!info->hdev) {
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