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Bluetooth: Add quirk for broken READ_PAGE_SCAN_TYPE

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[ 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>
This commit is contained in:
Pedro Nishiyama
2025-03-01 03:22:59 -03:00
committed by Greg Kroah-Hartman
parent 035e1bffc0
commit 09246dfb5c
2 changed files with 10 additions and 1 deletions
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8
include/net/bluetooth/hci.h
View File

@@ -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 */

3
net/bluetooth/hci_sync.c
View File

@@ -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,