willing to patch bluetooth

[massatt212]

From 4d5b0262d30dd6227d9bef96c2a2259bf1162350 Mon Sep 17 00:00:00 2001 From: Ismael Ferreras Morezuelas [email protected] Date: Mon, 19 Jul 2021 12:39:11 +0200 Subject: [PATCH] Bluetooth: Add a new quirk to skip HCI_FLT_CLEAR_ALL

Signed-off-by: Ismael Ferreras Morezuelas [email protected]

drivers/bluetooth/btusb.c | 1 + include/net/bluetooth/hci.h | 6 ++++++ net/bluetooth/hci_core.c | 12 +++++++++--- net/bluetooth/hci_request.c | 8 ++++++-- 4 files changed, 22 insertions(+), 5 deletions(-)

diff --git a/drivers/bluetooth/btusb.c b/drivers/bluetooth/btusb.c index 197cafe75..8fa07f9e3 100644 --- a/drivers/bluetooth/btusb.c +++ b/drivers/bluetooth/btusb.c @@ -1899,6 +1899,7 @@ static int btusb_setup_csr(struct hci_dev *hdev) */ set_bit(HCI_QUIRK_BROKEN_STORED_LINK_KEY, &hdev->quirks); set_bit(HCI_QUIRK_BROKEN_ERR_DATA_REPORTING, &hdev->quirks);

•   set_bit(HCI_QUIRK_BROKEN_FILTER_CLEAR_ALL, &hdev->quirks);
  
    /* Clear the reset quirk since this is not an actual
     * early Bluetooth 1.1 device from CSR.
  

diff --git a/include/net/bluetooth/hci.h b/include/net/bluetooth/hci.h index b80415011..a12178387 100644 --- a/include/net/bluetooth/hci.h +++ b/include/net/bluetooth/hci.h @@ -246,6 +246,12 @@ enum { * HCI after resume. */ HCI_QUIRK_NO_SUSPEND_NOTIFIER, +

• /* When this quirk is set, HCI_OP_SET_EVENT_FLT requests with
• • HCI_FLT_CLEAR_ALL are ignored. A subset of the CSR controller
• • clones struggle with this and instantly lock up.
• */
• HCI_QUIRK_BROKEN_FILTER_CLEAR_ALL, };

/* HCI device flags */ diff --git a/net/bluetooth/hci_core.c b/net/bluetooth/hci_core.c index 2560ed2f1..7ed355c3e 100644 --- a/net/bluetooth/hci_core.c +++ b/net/bluetooth/hci_core.c @@ -273,6 +273,7 @@ static void bredr_setup(struct hci_request *req) { __le16 param; __u8 flt_type;

• struct hci_dev *hdev = req->hdev;

  /* Read Buffer Size (ACL mtu, max pkt, etc.) */ hci_req_add(req, HCI_OP_READ_BUFFER_SIZE, 0, NULL); @@ -292,9 +293,14 @@ static void bredr_setup(struct hci_request req) / Read Current IAC LAP */ hci_req_add(req, HCI_OP_READ_CURRENT_IAC_LAP, 0, NULL);

• /* Clear Event Filters */
• flt_type = HCI_FLT_CLEAR_ALL;
• hci_req_add(req, HCI_OP_SET_EVENT_FLT, 1, &flt_type);

• /* Clear Event Filters; some fake CSR controllers lock up after setting

• • this type of filter, so avoid sending the request altogether.

• */

• if (!test_bit(HCI_QUIRK_BROKEN_FILTER_CLEAR_ALL, &hdev->quirks))

• {

•   flt_type = HCI_FLT_CLEAR_ALL;
  

•   hci_req_add(req, HCI_OP_SET_EVENT_FLT, 1, &flt_type);
  

• }

  /* Connection accept timeout ~20 secs */ param = cpu_to_le16(0x7d00); diff --git a/net/bluetooth/hci_request.c b/net/bluetooth/hci_request.c index 1d14adc02..90a88539b 100644 --- a/net/bluetooth/hci_request.c +++ b/net/bluetooth/hci_request.c @@ -1156,11 +1156,15 @@ static bool adv_instance_is_scannable(struct hci_dev *hdev, u8 instance) static void hci_req_clear_event_filter(struct hci_request *req) { struct hci_cp_set_event_filter f;

• struct hci_dev *hdev = req->hdev;

• if (!hci_dev_test_flag(hdev, HCI_BREDR_ENABLED))

•   return;
  

• if (!hci_dev_test_flag(req->hdev, HCI_BREDR_ENABLED))

• if (test_bit(HCI_QUIRK_BROKEN_FILTER_CLEAR_ALL, &hdev->quirks)) return;

• if (hci_dev_test_flag(req->hdev, HCI_EVENT_FILTER_CONFIGURED)) {

• if (hci_dev_test_flag(hdev, HCI_EVENT_FILTER_CONFIGURED)) { memset(&f, 0, sizeof(f)); f.flt_type = HCI_FLT_CLEAR_ALL; hci_req_add(req, HCI_OP_SET_EVENT_FLT, 1, &f); -- 2.32.0

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[xanmod]

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[massatt212]

Alright np very sry, just have 5 Bluetooth devices I bought and won't work, but they work on an older version, is their anything you can do with your kernel to .ake them work?