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authorSamuel Ortiz <sameo@linux.intel.com>2012-06-01 13:21:13 +0200
committerSamuel Ortiz <sameo@linux.intel.com>2012-06-04 21:34:30 +0200
commitfc40a8c1a06ab7db45da790693dd9802612a055c (patch)
tree7ad170c95ff66bce521bc25a6ddf6946cc1ab0c0 /net/nfc/netlink.c
parentad3823cef650bdc1ca9e7bf1a01b87ad3c0425de (diff)
downloadlinux-fc40a8c1a06ab7db45da790693dd9802612a055c.tar.bz2
NFC: Add target mode activation netlink event
Userspace gets a netlink event upon target mode activation. The LLCP layer is also signaled when we get an ATR_REQ in order to get the remote general bytes. Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
Diffstat (limited to 'net/nfc/netlink.c')
-rw-r--r--net/nfc/netlink.c62
1 files changed, 62 insertions, 0 deletions
diff --git a/net/nfc/netlink.c b/net/nfc/netlink.c
index a18fd56798fc..21eaa9b5c6bf 100644
--- a/net/nfc/netlink.c
+++ b/net/nfc/netlink.c
@@ -221,6 +221,68 @@ free_msg:
return -EMSGSIZE;
}
+int nfc_genl_tm_activated(struct nfc_dev *dev, u32 protocol)
+{
+ struct sk_buff *msg;
+ void *hdr;
+
+ msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
+ if (!msg)
+ return -ENOMEM;
+
+ hdr = genlmsg_put(msg, 0, 0, &nfc_genl_family, 0,
+ NFC_EVENT_TM_ACTIVATED);
+ if (!hdr)
+ goto free_msg;
+
+ if (nla_put_u32(msg, NFC_ATTR_DEVICE_INDEX, dev->idx))
+ goto nla_put_failure;
+ if (nla_put_u32(msg, NFC_ATTR_TM_PROTOCOLS, protocol))
+ goto nla_put_failure;
+
+ genlmsg_end(msg, hdr);
+
+ genlmsg_multicast(msg, 0, nfc_genl_event_mcgrp.id, GFP_KERNEL);
+
+ return 0;
+
+nla_put_failure:
+ genlmsg_cancel(msg, hdr);
+free_msg:
+ nlmsg_free(msg);
+ return -EMSGSIZE;
+}
+
+int nfc_genl_tm_deactivated(struct nfc_dev *dev)
+{
+ struct sk_buff *msg;
+ void *hdr;
+
+ msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
+ if (!msg)
+ return -ENOMEM;
+
+ hdr = genlmsg_put(msg, 0, 0, &nfc_genl_family, 0,
+ NFC_EVENT_TM_DEACTIVATED);
+ if (!hdr)
+ goto free_msg;
+
+ if (nla_put_u32(msg, NFC_ATTR_DEVICE_INDEX, dev->idx))
+ goto nla_put_failure;
+
+ genlmsg_end(msg, hdr);
+
+ genlmsg_multicast(msg, 0, nfc_genl_event_mcgrp.id, GFP_KERNEL);
+
+ return 0;
+
+nla_put_failure:
+ genlmsg_cancel(msg, hdr);
+free_msg:
+ nlmsg_free(msg);
+ return -EMSGSIZE;
+}
+
int nfc_genl_device_added(struct nfc_dev *dev)
{
struct sk_buff *msg;