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NFC: nci: Add NFCEE discover support

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NFCEEs (NFC Execution Environment) have to be explicitly
discovered by sending the NCI_OP_NFCEE_DISCOVER_CMD
command. The NFCC will respond to this command by telling
us how many NFCEEs are connected to it. Then the NFCC sends
a notification command for each and every NFCEE connected.
Here we implement support for sending
NCI_OP_NFCEE_DISCOVER_CMD command, receiving the response
and the potential notifications.

Signed-off-by: Christophe Ricard <christophe-h.ricard@st.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
This commit is contained in:
Christophe Ricard 2015-02-01 22:26:10 +01:00 • committed by Samuel Ortiz
parent 8277f6937a
commit af9c8aa67d
4 changed files with 72 additions and 0 deletions
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4
include/net/nfc/nci_core.h
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@ -100,6 +100,8 @@ struct nci_conn_info {
struct sk_buff *rx_skb;
};
#define NCI_INVALID_CONN_ID 0x80
/* NCI Core structures */
struct nci_dev {
struct nfc_dev *nfc_dev;
@ -182,6 +184,8 @@ void nci_unregister_device(struct nci_dev *ndev);
int nci_recv_frame(struct nci_dev *ndev, struct sk_buff *skb);
int nci_set_config(struct nci_dev *ndev, __u8 id, size_t len, __u8 *val);
int nci_nfcee_discover(struct nci_dev *ndev, u8 action);
static inline struct sk_buff *nci_skb_alloc(struct nci_dev *ndev,
unsigned int len,
gfp_t how)