diff options
| author | Christophe Ricard <christophe.ricard@gmail.com> | 2015-02-02 00:26:19 +0300 |
|---|---|---|
| committer | Samuel Ortiz <sameo@linux.intel.com> | 2015-02-02 23:50:42 +0300 |
| commit | 5d1ceb7f5e56aeec0d541a76293ba3de5af78795 (patch) | |
| tree | 5aee6de1a766303d84b06b5518874b37eef018ec /drivers/nfc | |
| parent | 6095b0f07d9b1abd98484bc33b329e06a684115b (diff) | |
| download | linux-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.c | 23 |
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; } |