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authorChristophe Ricard <christophe.ricard@gmail.com>2015-02-02 00:26:19 +0300
committerSamuel Ortiz <sameo@linux.intel.com>2015-02-02 23:50:42 +0300
commit5d1ceb7f5e56aeec0d541a76293ba3de5af78795 (patch)
tree5aee6de1a766303d84b06b5518874b37eef018ec /drivers/nfc
parent6095b0f07d9b1abd98484bc33b329e06a684115b (diff)
downloadlinux-5d1ceb7f5e56aeec0d541a76293ba3de5af78795.tar.xz
NFC: st21nfcb: Add HCI transaction event support
The transaction notifies the host (DH) that an action is required to manage a specific Secure Element application. Signed-off-by: Christophe Ricard <christophe-h.ricard@st.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
Diffstat (limited to 'drivers/nfc')
-rw-r--r--drivers/nfc/st21nfcb/st21nfcb_se.c23
1 files changed, 22 insertions, 1 deletions
diff --git a/drivers/nfc/st21nfcb/st21nfcb_se.c b/drivers/nfc/st21nfcb/st21nfcb_se.c
index f7977a47c047..9f4d8b744f32 100644
--- a/drivers/nfc/st21nfcb/st21nfcb_se.c
+++ b/drivers/nfc/st21nfcb/st21nfcb_se.c
@@ -311,14 +311,35 @@ static int st21nfcb_hci_connectivity_event_received(struct nci_dev *ndev,
struct sk_buff *skb)
{
int r = 0;
+ struct device *dev = &ndev->nfc_dev->dev;
+ struct nfc_evt_transaction *transaction;
pr_debug("connectivity gate event: %x\n", event);
switch (event) {
case ST21NFCB_EVT_CONNECTIVITY:
+
break;
case ST21NFCB_EVT_TRANSACTION:
- break;
+ if (skb->len < NFC_MIN_AID_LENGTH + 2 &&
+ skb->data[0] != NFC_EVT_TRANSACTION_AID_TAG)
+ return -EPROTO;
+
+ transaction = (struct nfc_evt_transaction *)devm_kzalloc(dev,
+ skb->len - 2, GFP_KERNEL);
+
+ transaction->aid_len = skb->data[1];
+ memcpy(transaction->aid, &skb->data[2], skb->data[1]);
+
+ if (skb->data[transaction->aid_len + 2] !=
+ NFC_EVT_TRANSACTION_PARAMS_TAG)
+ return -EPROTO;
+
+ transaction->params_len = skb->data[transaction->aid_len + 3];
+ memcpy(transaction->params, skb->data +
+ transaction->aid_len + 4, transaction->params_len);
+
+ r = nfc_se_transaction(ndev->nfc_dev, host, transaction);
default:
return 1;
}