Commit 1676f751 authored by Eric Lapuyade's avatar Eric Lapuyade Committed by John W. Linville
Browse files

NFC: Add HCI/SHDLC support to let driver check for tag presence


Signed-off-by: default avatarEric Lapuyade <eric.lapuyade@intel.com>
Signed-off-by: default avatarSamuel Ortiz <sameo@linux.intel.com>
Signed-off-by: default avatarJohn W. Linville <linville@tuxdriver.com>
parent d4ccb132
......@@ -39,6 +39,8 @@ struct nfc_hci_ops {
int (*data_exchange) (struct nfc_hci_dev *hdev,
struct nfc_target *target,
struct sk_buff *skb, struct sk_buff **res_skb);
int (*check_presence)(struct nfc_hci_dev *hdev,
struct nfc_target *target);
};
#define NFC_HCI_MAX_CUSTOM_GATES 15
......
......@@ -35,6 +35,8 @@ struct nfc_shdlc_ops {
int (*data_exchange) (struct nfc_shdlc *shdlc,
struct nfc_target *target,
struct sk_buff *skb, struct sk_buff **res_skb);
int (*check_presence)(struct nfc_shdlc *shdlc,
struct nfc_target *target);
};
enum shdlc_state {
......
......@@ -574,6 +574,17 @@ static int hci_data_exchange(struct nfc_dev *nfc_dev, struct nfc_target *target,
return 0;
}
static int hci_check_presence(struct nfc_dev *nfc_dev,
struct nfc_target *target)
{
struct nfc_hci_dev *hdev = nfc_get_drvdata(nfc_dev);
if (hdev->ops->check_presence)
return hdev->ops->check_presence(hdev, target);
return 0;
}
struct nfc_ops hci_nfc_ops = {
.dev_up = hci_dev_up,
.dev_down = hci_dev_down,
......@@ -582,6 +593,7 @@ struct nfc_ops hci_nfc_ops = {
.activate_target = hci_activate_target,
.deactivate_target = hci_deactivate_target,
.data_exchange = hci_data_exchange,
.check_presence = hci_check_presence,
};
struct nfc_hci_dev *nfc_hci_allocate_device(struct nfc_hci_ops *ops,
......
......@@ -816,6 +816,17 @@ static int nfc_shdlc_data_exchange(struct nfc_hci_dev *hdev,
return -EPERM;
}
static int nfc_shdlc_check_presence(struct nfc_hci_dev *hdev,
struct nfc_target *target)
{
struct nfc_shdlc *shdlc = nfc_hci_get_clientdata(hdev);
if (shdlc->ops->check_presence)
return shdlc->ops->check_presence(shdlc, target);
return 0;
}
static struct nfc_hci_ops shdlc_ops = {
.open = nfc_shdlc_open,
.close = nfc_shdlc_close,
......@@ -825,6 +836,7 @@ static struct nfc_hci_ops shdlc_ops = {
.target_from_gate = nfc_shdlc_target_from_gate,
.complete_target_discovered = nfc_shdlc_complete_target_discovered,
.data_exchange = nfc_shdlc_data_exchange,
.check_presence = nfc_shdlc_check_presence,
};
struct nfc_shdlc *nfc_shdlc_allocate(struct nfc_shdlc_ops *ops,
......
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