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NFC: Handle error during NCI data exchange

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Add support for NCI Interface Error Notification.
When this notification is received and we're during a
data exchange transaction, indicate an error to the NFC
core layer via the data exchange callback.

Signed-off-by: Ilan Elias <[email protected]>
Signed-off-by: John W. Linville <[email protected]>
This commit is contained in:
Ilan Elias 2011-12-20 16:57:41 +02:00 • committed by John W. Linville
commit 004161cb52
2 changed files with 24 additions and 0 deletions
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18
net/nfc/nci/ntf.c
View file

@ -71,6 +71,20 @@ static void nci_core_conn_credits_ntf_packet(struct nci_dev *ndev,
queue_work(ndev->tx_wq, &ndev->tx_work);
}
static void nci_core_conn_intf_error_ntf_packet(struct nci_dev *ndev,
struct sk_buff *skb)
{
struct nci_core_intf_error_ntf *ntf = (void *) skb->data;
ntf->conn_id = nci_conn_id(&ntf->conn_id);
pr_debug("status 0x%x, conn_id %d\n", ntf->status, ntf->conn_id);
/* complete the data exchange transaction, if exists */
if (test_bit(NCI_DATA_EXCHANGE, &ndev->flags))
nci_data_exchange_complete(ndev, NULL, -EIO);
}
static __u8 *nci_extract_rf_params_nfca_passive_poll(struct nci_dev *ndev,
struct nci_rf_intf_activated_ntf *ntf, __u8 *data)
{
@ -280,6 +294,10 @@ void nci_ntf_packet(struct nci_dev *ndev, struct sk_buff *skb)
nci_core_conn_credits_ntf_packet(ndev, skb);
break;
case NCI_OP_CORE_INTF_ERROR_NTF:
nci_core_conn_intf_error_ntf_packet(ndev, skb);
break;
case NCI_OP_RF_INTF_ACTIVATED_NTF:
nci_rf_intf_activated_ntf_packet(ndev, skb);
break;