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authorEric Lapuyade <eric.lapuyade@linux.intel.com>2012-12-18 14:15:49 +0100
committerSamuel Ortiz <sameo@linux.intel.com>2013-01-10 00:51:51 +0100
commitbf71ab8ba53081c28b960d48e0c4cd1c17588aa6 (patch)
treefb6444f45ac21850fa5b7bed05fb19a93b4ee313 /net/nfc
parent924d4a023ee6da2e40c78578829e68bcbabee2dd (diff)
downloadlinux-bf71ab8ba53081c28b960d48e0c4cd1c17588aa6.tar.gz
NFC: Add HCI quirks to support driver (non)standard implementations
Some chips diverge from the HCI spec in their implementation of standard features. This adds a new quirks parameter to nfc_hci_allocate_device() to let the driver indicate its divergence. Signed-off-by: Eric Lapuyade <eric.lapuyade@intel.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
Diffstat (limited to 'net/nfc')
-rw-r--r--net/nfc/hci/command.c7
-rw-r--r--net/nfc/hci/core.c3
2 files changed, 9 insertions, 1 deletions
diff --git a/net/nfc/hci/command.c b/net/nfc/hci/command.c
index 7d99410e6c1..64f922be928 100644
--- a/net/nfc/hci/command.c
+++ b/net/nfc/hci/command.c
@@ -280,14 +280,19 @@ static int nfc_hci_delete_pipe(struct nfc_hci_dev *hdev, u8 pipe)
static int nfc_hci_clear_all_pipes(struct nfc_hci_dev *hdev)
{
u8 param[2];
+ size_t param_len = 2;
/* TODO: Find out what the identity reference data is
* and fill param with it. HCI spec 6.1.3.5 */
pr_debug("\n");
+ if (test_bit(NFC_HCI_QUIRK_SHORT_CLEAR, &hdev->quirks))
+ param_len = 0;
+
return nfc_hci_execute_cmd(hdev, NFC_HCI_ADMIN_PIPE,
- NFC_HCI_ADM_CLEAR_ALL_PIPE, param, 2, NULL);
+ NFC_HCI_ADM_CLEAR_ALL_PIPE, param, param_len,
+ NULL);
}
int nfc_hci_disconnect_gate(struct nfc_hci_dev *hdev, u8 gate)
diff --git a/net/nfc/hci/core.c b/net/nfc/hci/core.c
index d9190da4a40..755a6b9774a 100644
--- a/net/nfc/hci/core.c
+++ b/net/nfc/hci/core.c
@@ -795,6 +795,7 @@ static struct nfc_ops hci_nfc_ops = {
struct nfc_hci_dev *nfc_hci_allocate_device(struct nfc_hci_ops *ops,
struct nfc_hci_init_data *init_data,
+ unsigned long quirks,
u32 protocols,
const char *llc_name,
int tx_headroom,
@@ -838,6 +839,8 @@ struct nfc_hci_dev *nfc_hci_allocate_device(struct nfc_hci_ops *ops,
memset(hdev->gate2pipe, NFC_HCI_INVALID_PIPE, sizeof(hdev->gate2pipe));
+ hdev->quirks = quirks;
+
return hdev;
}
EXPORT_SYMBOL(nfc_hci_allocate_device);