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NFC: nci: Add NFCEE enabling and disabling support

Browse source 
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 <[email protected]>
Signed-off-by: Samuel Ortiz <[email protected]>
This commit is contained in:
Christophe Ricard 2015-02-01 22:26:11 +01:00 • committed by Samuel Ortiz
commit f7f793f313
4 changed files with 44 additions and 0 deletions
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21
net/nfc/nci/core.c
View file

@ -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);

13
net/nfc/nci/rsp.c
View file

@ -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;