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Commit 5d1ceb7f authored by Christophe Ricard's avatar Christophe Ricard Committed by Samuel Ortiz
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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: default avatarChristophe Ricard <christophe-h.ricard@st.com>
Signed-off-by: default avatarSamuel Ortiz <sameo@linux.intel.com>
parent 6095b0f0

drivers/nfc/st21nfcb/st21nfcb_se.c

+22 −1
Original line number Diff line number Diff line
@@ -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;

	}