The HCI_QUIRK_FIXUP_INQUIRY_MODE option allows to force Inquiry Result
with RSSI setting on controllers that do not indicate support for it,
but where it is known to be fully functional.
Signed-off-by: Marcel Holtmann <marcel@xxxxxxxxxxxx>
---
include/net/bluetooth/hci.h | 12 ++++++++++++
net/bluetooth/hci_core.c | 3 ++-
2 files changed, 14 insertions(+), 1 deletion(-)
diff --git a/include/net/bluetooth/hci.h b/include/net/bluetooth/hci.h
index aee16bf5d34f..d0bca316b43b 100644
--- a/include/net/bluetooth/hci.h
+++ b/include/net/bluetooth/hci.h
@@ -102,6 +102,18 @@ enum {
*/
HCI_QUIRK_FIXUP_BUFFER_SIZE,
+ /* When this quirk is set, then a controller that does not
+ * indicate support for Inquiry Result with RSSI is assumed to
+ * support it anyway. Some early Bluetooth 1.2 controllers had
+ * wrongly configured local features that will require forcing
+ * them to enable this mode. Getting RSSI information with the
+ * inquiry responses is preferred since it allows for a better
+ * user expierence.
+ *
+ * This quirk must be set before hci_register_dev is called.
+ */
+ HCI_QUIRK_FIXUP_INQUIRY_MODE,
+
/* When this quirk is set, then the HCI Read Local Supported
* Commands command is not supported. In general Bluetooth 1.2
* and later controllers should support this command. However
diff --git a/net/bluetooth/hci_core.c b/net/bluetooth/hci_core.c
index ebac859e1258..bc5486ea5411 100644
--- a/net/bluetooth/hci_core.c
+++ b/net/bluetooth/hci_core.c
@@ -621,7 +621,8 @@ static void hci_init2_req(struct hci_request *req, unsigned long opt)
}
}
- if (lmp_inq_rssi_capable(hdev)) {
+ if (lmp_inq_rssi_capable(hdev) ||
+ test_bit(HCI_QUIRK_FIXUP_INQUIRY_MODE, &hdev->quirks)) {
u8 mode;
/* If Extended Inquiry Result events are supported, then
--
2.1.0
--
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