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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>
hifive-unleashed-5.1
Arron Wang 2012-09-27 17:32:59 +08:00 committed by Samuel Ortiz
parent e81076235b
commit da052850b9
1 changed files with 28 additions and 3 deletions
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31
drivers/nfc/pn544_hci.c
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@ -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,