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authorChristophe Ricard <christophe.ricard@gmail.com>2015-02-01 22:26:11 +0100
committerSamuel Ortiz <sameo@linux.intel.com>2015-02-02 21:50:39 +0100
commitf7f793f31378d5e83276871339c2a8374b0e8657 (patch)
treefbb5d1fe808f5a5ef1626e929cdc17717448420a /net/nfc
parentaf9c8aa67d07adcd3b41fb2934af7af056eabecf (diff)
downloadlinux-f7f793f31378d5e83276871339c2a8374b0e8657.tar.bz2
NFC: nci: Add NFCEE enabling and disabling support
NFCEEs can be enabled or disabled by sending the NCI_OP_NFCEE_MODE_SET_CMD command to the NFCC. This patch provides an API for drivers to enable and disable e.g. their NCI discoveredd secure elements. Signed-off-by: Christophe Ricard <christophe-h.ricard@st.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
Diffstat (limited to 'net/nfc')
-rw-r--r--net/nfc/nci/core.c21
-rw-r--r--net/nfc/nci/rsp.c13
2 files changed, 34 insertions, 0 deletions
diff --git a/net/nfc/nci/core.c b/net/nfc/nci/core.c
index a25857548524..e5fb8c8eed94 100644
--- a/net/nfc/nci/core.c
+++ b/net/nfc/nci/core.c
@@ -486,6 +486,27 @@ int nci_nfcee_discover(struct nci_dev *ndev, u8 action)
}
EXPORT_SYMBOL(nci_nfcee_discover);
+static void nci_nfcee_mode_set_req(struct nci_dev *ndev, unsigned long opt)
+{
+ struct nci_nfcee_mode_set_cmd *cmd =
+ (struct nci_nfcee_mode_set_cmd *)opt;
+
+ nci_send_cmd(ndev, NCI_OP_NFCEE_MODE_SET_CMD,
+ sizeof(struct nci_nfcee_mode_set_cmd), cmd);
+}
+
+int nci_nfcee_mode_set(struct nci_dev *ndev, u8 nfcee_id, u8 nfcee_mode)
+{
+ struct nci_nfcee_mode_set_cmd cmd;
+
+ cmd.nfcee_id = nfcee_id;
+ cmd.nfcee_mode = nfcee_mode;
+
+ return nci_request(ndev, nci_nfcee_mode_set_req, (unsigned long)&cmd,
+ msecs_to_jiffies(NCI_CMD_TIMEOUT));
+}
+EXPORT_SYMBOL(nci_nfcee_mode_set);
+
static int nci_set_local_general_bytes(struct nfc_dev *nfc_dev)
{
struct nci_dev *ndev = nfc_get_drvdata(nfc_dev);
diff --git a/net/nfc/nci/rsp.c b/net/nfc/nci/rsp.c
index ee094dfab2ed..0a3e98240dd6 100644
--- a/net/nfc/nci/rsp.c
+++ b/net/nfc/nci/rsp.c
@@ -213,6 +213,15 @@ static void nci_nfcee_discover_rsp_packet(struct nci_dev *ndev,
nci_req_complete(ndev, discover_rsp->status);
}
+static void nci_nfcee_mode_set_rsp_packet(struct nci_dev *ndev,
+ struct sk_buff *skb)
+{
+ __u8 status = skb->data[0];
+
+ pr_debug("status 0x%x\n", status);
+ nci_req_complete(ndev, status);
+}
+
void nci_rsp_packet(struct nci_dev *ndev, struct sk_buff *skb)
{
__u16 rsp_opcode = nci_opcode(skb->data);
@@ -262,6 +271,10 @@ void nci_rsp_packet(struct nci_dev *ndev, struct sk_buff *skb)
nci_nfcee_discover_rsp_packet(ndev, skb);
break;
+ case NCI_OP_NFCEE_MODE_SET_RSP:
+ nci_nfcee_mode_set_rsp_packet(ndev, skb);
+ break;
+
default:
pr_err("unknown rsp opcode 0x%x\n", rsp_opcode);
break;