diff options
| author | Pedro Nishiyama <nishiyama.pedro@gmail.com> | 2025-03-01 03:22:59 -0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2025-04-20 10:15:22 +0200 |
| commit | 09246dfb5c8758113f878456d30c02ecb42b0595 (patch) | |
| tree | 48a64c66a3cff033a6edb94d446a9378f868309c | |
| parent | 035e1bffc063399ad1e193f6e4d8f70bb2f6301f (diff) | |
Bluetooth: Add quirk for broken READ_PAGE_SCAN_TYPE
[ Upstream commit 127881334eaad639e0a19a399ee8c91d6c9dc982 ]
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@gmail.com>
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
| -rw-r--r-- | include/net/bluetooth/hci.h | 8 | ||||
| -rw-r--r-- | net/bluetooth/hci_sync.c | 3 |
2 files changed, 10 insertions, 1 deletions
diff --git a/include/net/bluetooth/hci.h b/include/net/bluetooth/hci.h index fa6f92915968..71d243287640 100644 --- a/include/net/bluetooth/hci.h +++ b/include/net/bluetooth/hci.h @@ -361,6 +361,14 @@ 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 bb455e96a715..cb4d47ae129e 100644 --- a/net/bluetooth/hci_sync.c +++ b/net/bluetooth/hci_sync.c @@ -4156,7 +4156,8 @@ 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, |