diff options
| author | Arron Wang <arron.wang@intel.com> | 2012-09-27 17:32:59 +0800 |
|---|---|---|
| committer | Samuel Ortiz <sameo@linux.intel.com> | 2012-10-26 18:26:46 +0200 |
| commit | da052850b911dfd0fcd5c8d6308917ebe2edbacf (patch) | |
| tree | 39b3262facb3644dbdeb7cf4f3cdebb02f4b6b08 /drivers/nfc | |
| parent | e81076235b46189a776362ec5e4c6626bf1599ff (diff) | |
| download | linux-da052850b911dfd0fcd5c8d6308917ebe2edbacf.tar.bz2 | |
NFC: Add pn544 presence check for different targets
Signed-off-by: Arron Wang <arron.wang@intel.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
Diffstat (limited to 'drivers/nfc')
| -rw-r--r-- | drivers/nfc/pn544_hci.c | 31 |
1 files changed, 28 insertions, 3 deletions
diff --git a/drivers/nfc/pn544_hci.c b/drivers/nfc/pn544_hci.c index 554faf0a92d7..b66d4681a577 100644 --- a/drivers/nfc/pn544_hci.c +++ b/drivers/nfc/pn544_hci.c @@ -118,6 +118,7 @@ enum pn544_state { #define PN544_HCI_EVT_RCV_DATA 0x04 #define PN544_HCI_EVT_CONTINUE_MI 0x05 +#define PN544_HCI_CMD_ATTREQUEST 0x12 #define PN544_HCI_CMD_CONTINUE_ACTIVATION 0x13 static struct nfc_hci_gate pn544_gates[] = { @@ -976,9 +977,33 @@ static int pn544_hci_tm_send(struct nfc_hci_dev *hdev, struct sk_buff *skb) static int pn544_hci_check_presence(struct nfc_hci_dev *hdev, struct nfc_target *target) { - return nfc_hci_send_cmd(hdev, target->hci_reader_gate, - PN544_RF_READER_CMD_PRESENCE_CHECK, - NULL, 0, NULL); + pr_debug("supported protocol %d", target->supported_protocols); + if (target->supported_protocols & (NFC_PROTO_ISO14443_MASK | + NFC_PROTO_ISO14443_B_MASK)) { + return nfc_hci_send_cmd(hdev, target->hci_reader_gate, + PN544_RF_READER_CMD_PRESENCE_CHECK, + NULL, 0, NULL); + } else if (target->supported_protocols & NFC_PROTO_MIFARE_MASK) { + if (target->nfcid1_len != 4 && target->nfcid1_len != 7 && + target->nfcid1_len != 10) + return -EPROTO; + + return nfc_hci_send_cmd(hdev, NFC_HCI_RF_READER_A_GATE, + PN544_RF_READER_CMD_ACTIVATE_NEXT, + target->nfcid1, target->nfcid1_len, NULL); + } else if (target->supported_protocols & NFC_PROTO_JEWEL_MASK) { + return nfc_hci_send_cmd(hdev, target->hci_reader_gate, + PN544_JEWEL_RAW_CMD, NULL, 0, NULL); + } else if (target->supported_protocols & NFC_PROTO_FELICA_MASK) { + return nfc_hci_send_cmd(hdev, PN544_RF_READER_F_GATE, + PN544_FELICA_RAW, NULL, 0, NULL); + } else if (target->supported_protocols & NFC_PROTO_NFC_DEP_MASK) { + return nfc_hci_send_cmd(hdev, target->hci_reader_gate, + PN544_HCI_CMD_ATTREQUEST, + NULL, 0, NULL); + } + + return 0; } void pn544_hci_event_received(struct nfc_hci_dev *hdev, u8 gate, u8 event, |