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authorIlan Elias <ilane@ti.com>2011-12-20 16:57:41 +0200
committerJohn W. Linville <linville@tuxdriver.com>2012-01-04 14:30:39 -0500
commit004161cb52ac49bc17f6528543c1cecbd728f750 (patch)
tree61701dba816c42e77dc9f941d0e66a8887067919 /net/nfc
parent637d85a7cdfe4240a56da7d70cf95cca65ea21d3 (diff)
downloadlinux-004161cb52ac49bc17f6528543c1cecbd728f750.tar.gz
NFC: Handle error during NCI data exchange
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 <ilane@ti.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'net/nfc')
-rw-r--r--net/nfc/nci/ntf.c18
1 files changed, 18 insertions, 0 deletions
diff --git a/net/nfc/nci/ntf.c b/net/nfc/nci/ntf.c
index c8813eda7865..352f7a2321d9 100644
--- a/net/nfc/nci/ntf.c
+++ b/net/nfc/nci/ntf.c
@@ -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;