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path: root/drivers/nfc/st21nfca/st21nfca.c
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Diffstat (limited to 'drivers/nfc/st21nfca/st21nfca.c')
-rw-r--r--drivers/nfc/st21nfca/st21nfca.c8
1 files changed, 8 insertions, 0 deletions
diff --git a/drivers/nfc/st21nfca/st21nfca.c b/drivers/nfc/st21nfca/st21nfca.c
index 51e0f00b3a4f..7ff1dcdd16ba 100644
--- a/drivers/nfc/st21nfca/st21nfca.c
+++ b/drivers/nfc/st21nfca/st21nfca.c
@@ -53,6 +53,7 @@
#define ST21NFCA_DM_PIPE_CREATED 0x02
#define ST21NFCA_DM_PIPE_OPEN 0x04
#define ST21NFCA_DM_RF_ACTIVE 0x80
+#define ST21NFCA_DM_DISCONNECT 0x30
#define ST21NFCA_DM_IS_PIPE_OPEN(p) \
((p & 0x0f) == (ST21NFCA_DM_PIPE_CREATED | ST21NFCA_DM_PIPE_OPEN))
@@ -356,6 +357,12 @@ static int st21nfca_hci_start_poll(struct nfc_hci_dev *hdev,
return r;
}
+static void st21nfca_hci_stop_poll(struct nfc_hci_dev *hdev)
+{
+ nfc_hci_send_cmd(hdev, ST21NFCA_DEVICE_MGNT_GATE,
+ ST21NFCA_DM_DISCONNECT, NULL, 0, NULL);
+}
+
static int st21nfca_get_iso14443_3_atqa(struct nfc_hci_dev *hdev, u16 *atqa)
{
int r;
@@ -601,6 +608,7 @@ static struct nfc_hci_ops st21nfca_hci_ops = {
.hci_ready = st21nfca_hci_ready,
.xmit = st21nfca_hci_xmit,
.start_poll = st21nfca_hci_start_poll,
+ .stop_poll = st21nfca_hci_stop_poll,
.target_from_gate = st21nfca_hci_target_from_gate,
.im_transceive = st21nfca_hci_im_transceive,
.check_presence = st21nfca_hci_check_presence,
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