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NFC: Allow HCI driver to pre-open pipes to some gates

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Some NFC chips will statically create and open pipes for both standard
and proprietary gates. The driver can now pass this information to HCI
such that HCI will not attempt to create and open them, but will instead
directly use the passed pipe ids.

Signed-off-by: Eric Lapuyade <eric.lapuyade@intel.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
This commit is contained in:
Eric Lapuyade
2012-06-05 14:42:11 +02:00
committed by John W. Linville
parent eae202aa20
commit a10d595b10
5 changed files with 47 additions and 37 deletions
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8
net/nfc/hci/command.c
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@@ -299,9 +299,9 @@ int nfc_hci_disconnect_all_gates(struct nfc_hci_dev *hdev)
}
EXPORT_SYMBOL(nfc_hci_disconnect_all_gates);
int nfc_hci_connect_gate(struct nfc_hci_dev *hdev, u8 dest_host, u8 dest_gate)
int nfc_hci_connect_gate(struct nfc_hci_dev *hdev, u8 dest_host, u8 dest_gate,
u8 pipe)
{
u8 pipe = NFC_HCI_INVALID_PIPE;
bool pipe_created = false;
int r;
@@ -310,6 +310,9 @@ int nfc_hci_connect_gate(struct nfc_hci_dev *hdev, u8 dest_host, u8 dest_gate)
if (hdev->gate2pipe[dest_gate] != NFC_HCI_INVALID_PIPE)
return -EADDRINUSE;
if (pipe != NFC_HCI_INVALID_PIPE)
goto pipe_is_open;
switch (dest_gate) {
case NFC_HCI_LINK_MGMT_GATE:
pipe = NFC_HCI_LINK_MGMT_PIPE;
@@ -335,6 +338,7 @@ int nfc_hci_connect_gate(struct nfc_hci_dev *hdev, u8 dest_host, u8 dest_gate)
return r;
}
pipe_is_open:
hdev->gate2pipe[dest_gate] = pipe;
return 0;