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>

1 files changed, 13 insertions, 0 deletions

diff --git a/include/net/nfc/hci.h b/include/net/nfc/hci.h
index 834e36481aff..2ff71750c428 100644
--- a/include/net/nfc/hci.h
+++ b/include/net/nfc/hci.h
@@ -82,6 +82,16 @@ typedef int (*xmit) (struct sk_buff *skb, void *cb_data);
 
 #define NFC_HCI_MAX_GATES               256
 
+/*
+ * These values can be specified by a driver to indicate it requires some
+ * adaptation of the HCI standard.
+ *
+ * NFC_HCI_QUIRK_SHORT_CLEAR - send HCI_ADM_CLEAR_ALL_PIPE cmd with no params
+ */
+enum {
+        NFC_HCI_QUIRK_SHORT_CLEAR       = 0,
+};
+
 struct nfc_hci_dev {
         struct nfc_dev *ndev;
 
@@ -131,11 +141,14 @@ struct nfc_hci_dev {
 
         u8 *gb;
         size_t gb_len;
+
+        unsigned long quirks;
 };
 
 /* hci device allocation */
 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,