Some fake controllers cannot be initialized because they return a smaller
report than expected for READ_PAGE_SCAN_TYPE.
Signed-off-by: Pedro Nishiyama <nishiyama.pedro@xxxxxxxxx>
---
include/net/bluetooth/hci.h | 8 ++++++++
net/bluetooth/hci_sync.c | 3 ++-
2 files changed, 10 insertions(+), 1 deletion(-)
diff --git a/include/net/bluetooth/hci.h b/include/net/bluetooth/hci.h
index 6886962eca78..b99818df8ee7 100644
--- a/include/net/bluetooth/hci.h
+++ b/include/net/bluetooth/hci.h
@@ -362,6 +362,14 @@ enum {
* This quirk must be set before hci_register_dev is called.
*/
HCI_QUIRK_BROKEN_READ_VOICE_SETTING,
+
+ /* When this quirk is set, the HCI_OP_READ_PAGE_SCAN_TYPE command is
+ * skipped. This is required for a subset of the CSR controller clones
+ * which erroneously claim to support it.
+ *
+ * This quirk must be set before hci_register_dev is called.
+ */
+ HCI_QUIRK_BROKEN_READ_PAGE_SCAN_TYPE,
};
/* HCI device flags */
diff --git a/net/bluetooth/hci_sync.c b/net/bluetooth/hci_sync.c
index 0c6a85abba2c..cf60a8da943a 100644
--- a/net/bluetooth/hci_sync.c
+++ b/net/bluetooth/hci_sync.c
@@ -4132,7 +4132,8 @@ static int hci_read_page_scan_type_sync(struct hci_dev *hdev)
* support the Read Page Scan Type command. Check support for
* this command in the bit mask of supported commands.
*/
- if (!(hdev->commands[13] & 0x01))
+ if (!(hdev->commands[13] & 0x01) ||
+ test_bit(HCI_QUIRK_BROKEN_READ_PAGE_SCAN_TYPE, &hdev->quirks))
return 0;
return __hci_cmd_sync_status(hdev, HCI_OP_READ_PAGE_SCAN_TYPE,
--
2.48.1
