Patches to fix usb bt dongle
This commit is contained in:
parent
7891699ec5
commit
3e56f12373
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@ -77,7 +77,7 @@
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};
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monolith = lib.nixosSystem {
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inherit system specialArgs;
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modules = [ ./hosts/monolith.nix ./system/gitlab-runner.nix ]
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modules = [ ./hosts/monolith.nix ./system/gitlab-runner.nix ./system/btusb-kernel-patches.nix ]
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++ common_modules;
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};
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rainbow = lib.nixosSystem {
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21
system/btusb-kernel-patches.nix
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21
system/btusb-kernel-patches.nix
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@ -0,0 +1,21 @@
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{ config, pkgs, lib, inputs, ... }: {
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boot.kernelPackages = lib.mkDefault pkgs.linuxPackages_latest;
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boot.kernelPatches = [
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{
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name = "bt-usb-fixes-1";
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patch = ./kernel/patches/1-3-Bluetooth-btusb-Fix-Chinese-CSR-dongles-again-by-re-adding-ERR_DATA_REPORTING-quirk.diff;
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}
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{
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name = "bt-usb-fixes-2";
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patch = ./kernel/patches/2-3-Bluetooth-btusb-Add-a-setup-message-for-CSR-dongles-showing-the-Read-Local-Information-values.diff;
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}
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{
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name = "bt-usb-fixes-3";
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patch = ./kernel/patches/3-3-Bluetooth-btusb-Add-a-parameter-to-let-users-disable-the-fake-CSR-force-suspend-hack.diff;
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}
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{
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name = "bt-usb-fixes-4";
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patch = ./kernel/patches/fix-btusb-crash.diff;
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}
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];
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}
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@ -0,0 +1,68 @@
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diff --git a/drivers/bluetooth/btusb.c b/drivers/bluetooth/btusb.c
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index 3b269060e91f..1360b2163ec5 100644
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--- a/drivers/bluetooth/btusb.c
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+++ b/drivers/bluetooth/btusb.c
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@@ -2174,6 +2174,7 @@ static int btusb_setup_csr(struct hci_dev *hdev)
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* without these the controller will lock up.
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*/
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set_bit(HCI_QUIRK_BROKEN_STORED_LINK_KEY, &hdev->quirks);
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+ set_bit(HCI_QUIRK_BROKEN_ERR_DATA_REPORTING, &hdev->quirks);
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set_bit(HCI_QUIRK_BROKEN_FILTER_CLEAR_ALL, &hdev->quirks);
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set_bit(HCI_QUIRK_NO_SUSPEND_NOTIFIER, &hdev->quirks);
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diff --git a/include/net/bluetooth/hci.h b/include/net/bluetooth/hci.h
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index e004ba04a9ae..0fe789f6a653 100644
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--- a/include/net/bluetooth/hci.h
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+++ b/include/net/bluetooth/hci.h
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@@ -228,6 +228,17 @@ enum {
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*/
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HCI_QUIRK_VALID_LE_STATES,
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+ /* When this quirk is set, then erroneous data reporting
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+ * is ignored. This is mainly due to the fact that the HCI
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+ * Read Default Erroneous Data Reporting command is advertised,
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+ * but not supported; these controllers often reply with unknown
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+ * command and tend to lock up randomly. Needing a hard reset.
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+ *
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+ * This quirk can be set before hci_register_dev is called or
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+ * during the hdev->setup vendor callback.
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+ */
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+ HCI_QUIRK_BROKEN_ERR_DATA_REPORTING,
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+
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/*
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* When this quirk is set, then the hci_suspend_notifier is not
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* registered. This is intended for devices which drop completely
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diff --git a/net/bluetooth/hci_sync.c b/net/bluetooth/hci_sync.c
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index bd9eb713b26b..0a7abc817f10 100644
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--- a/net/bluetooth/hci_sync.c
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+++ b/net/bluetooth/hci_sync.c
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@@ -3798,7 +3798,8 @@ static int hci_read_page_scan_activity_sync(struct hci_dev *hdev)
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static int hci_read_def_err_data_reporting_sync(struct hci_dev *hdev)
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{
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if (!(hdev->commands[18] & 0x04) ||
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- !(hdev->features[0][6] & LMP_ERR_DATA_REPORTING))
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+ !(hdev->features[0][6] & LMP_ERR_DATA_REPORTING) ||
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+ test_bit(HCI_QUIRK_BROKEN_ERR_DATA_REPORTING, &hdev->quirks))
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return 0;
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return __hci_cmd_sync_status(hdev, HCI_OP_READ_DEF_ERR_DATA_REPORTING,
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@@ -4316,7 +4317,8 @@ static int hci_set_err_data_report_sync(struct hci_dev *hdev)
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bool enabled = hci_dev_test_flag(hdev, HCI_WIDEBAND_SPEECH_ENABLED);
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if (!(hdev->commands[18] & 0x08) ||
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- !(hdev->features[0][6] & LMP_ERR_DATA_REPORTING))
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+ !(hdev->features[0][6] & LMP_ERR_DATA_REPORTING) ||
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+ test_bit(HCI_QUIRK_BROKEN_ERR_DATA_REPORTING, &hdev->quirks))
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return 0;
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if (enabled == hdev->err_data_reporting)
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@@ -4475,6 +4477,9 @@ static const struct {
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HCI_QUIRK_BROKEN(STORED_LINK_KEY,
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"HCI Delete Stored Link Key command is advertised, "
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"but not supported."),
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+ HCI_QUIRK_BROKEN(ERR_DATA_REPORTING,
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+ "HCI Read Default Erroneous Data Reporting command is "
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+ "advertised, but not supported."),
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HCI_QUIRK_BROKEN(READ_TRANSMIT_POWER,
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"HCI Read Transmit Power Level command is advertised, "
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"but not supported."),
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@ -0,0 +1,16 @@
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diff --git a/drivers/bluetooth/btusb.c b/drivers/bluetooth/btusb.c
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index 1360b2163ec5..8f34bf195bae 100644
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--- a/drivers/bluetooth/btusb.c
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+++ b/drivers/bluetooth/btusb.c
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@@ -2112,6 +2112,11 @@ static int btusb_setup_csr(struct hci_dev *hdev)
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rp = (struct hci_rp_read_local_version *)skb->data;
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+ bt_dev_info(hdev, "CSR: Setting up dongle with HCI ver=%u rev=%04x; LMP ver=%u subver=%04x; manufacturer=%u",
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+ le16_to_cpu(rp->hci_ver), le16_to_cpu(rp->hci_rev),
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+ le16_to_cpu(rp->lmp_ver), le16_to_cpu(rp->lmp_subver),
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+ le16_to_cpu(rp->manufacturer));
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+
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/* Detect a wide host of Chinese controllers that aren't CSR.
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*
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* Known fake bcdDevices: 0x0100, 0x0134, 0x1915, 0x2520, 0x7558, 0x8891
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@ -0,0 +1,67 @@
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diff --git a/drivers/bluetooth/btusb.c b/drivers/bluetooth/btusb.c
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index 8f34bf195bae..d31d4f925463 100644
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--- a/drivers/bluetooth/btusb.c
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+++ b/drivers/bluetooth/btusb.c
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@@ -34,6 +34,7 @@ static bool force_scofix;
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static bool enable_autosuspend = IS_ENABLED(CONFIG_BT_HCIBTUSB_AUTOSUSPEND);
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static bool enable_poll_sync = IS_ENABLED(CONFIG_BT_HCIBTUSB_POLL_SYNC);
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static bool reset = true;
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+static bool disable_fake_csr_forcesuspend_hack;
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static struct usb_driver btusb_driver;
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@@ -2171,7 +2172,7 @@ static int btusb_setup_csr(struct hci_dev *hdev)
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is_fake = true;
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if (is_fake) {
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- bt_dev_warn(hdev, "CSR: Unbranded CSR clone detected; adding workarounds and force-suspending once...");
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+ bt_dev_warn(hdev, "CSR: Unbranded CSR clone detected; adding workarounds...");
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/* Generally these clones have big discrepancies between
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* advertised features and what's actually supported.
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@@ -2215,21 +2216,24 @@ static int btusb_setup_csr(struct hci_dev *hdev)
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* apply this initialization quirk to every controller that gets here,
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* it should be harmless. The alternative is to not work at all.
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*/
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- pm_runtime_allow(&data->udev->dev);
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+ if (!disable_fake_csr_forcesuspend_hack) {
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+ bt_dev_warn(hdev, "CSR: Unbranded CSR clone detected; force-suspending once...");
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+ pm_runtime_allow(&data->udev->dev);
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- ret = pm_runtime_suspend(&data->udev->dev);
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- if (ret >= 0)
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- msleep(200);
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- else
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- bt_dev_warn(hdev, "CSR: Couldn't suspend the device for our Barrot 8041a02 receive-issue workaround");
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+ ret = pm_runtime_suspend(&data->udev->dev);
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+ if (ret >= 0)
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+ msleep(200);
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+ else
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+ bt_dev_warn(hdev, "CSR: Couldn't suspend the device for our Barrot 8041a02 receive-issue workaround");
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- pm_runtime_forbid(&data->udev->dev);
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+ pm_runtime_forbid(&data->udev->dev);
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- device_set_wakeup_capable(&data->udev->dev, false);
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+ device_set_wakeup_capable(&data->udev->dev, false);
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- /* Re-enable autosuspend if this was requested */
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- if (enable_autosuspend)
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- usb_enable_autosuspend(data->udev);
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+ /* Re-enable autosuspend if this was requested */
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+ if (enable_autosuspend)
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+ usb_enable_autosuspend(data->udev);
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+ }
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}
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kfree_skb(skb);
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@@ -4312,6 +4316,9 @@ MODULE_PARM_DESC(enable_autosuspend, "Enable USB autosuspend by default");
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module_param(reset, bool, 0644);
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MODULE_PARM_DESC(reset, "Send HCI reset command on initialization");
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+module_param(disable_fake_csr_forcesuspend_hack, bool, 0644);
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+MODULE_PARM_DESC(disable_fake_csr_forcesuspend_hack, "Don't indiscriminately force-suspend Chinese-cloned CSR dongles trying to unfreeze them");
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+
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MODULE_AUTHOR("Marcel Holtmann <marcel@holtmann.org>");
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MODULE_DESCRIPTION("Generic Bluetooth USB driver ver " VERSION);
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MODULE_VERSION(VERSION);
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27
system/kernel/patches/fix-btusb-crash.diff
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27
system/kernel/patches/fix-btusb-crash.diff
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diff --git a/net/bluetooth/hci_core.c b/net/bluetooth/hci_core.c
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index 6ae5aa5..3c5e80f 100644
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--- a/net/bluetooth/hci_core.c
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+++ b/net/bluetooth/hci_core.c
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@@ -2757,7 +2757,8 @@ int hci_register_suspend_notifier(struct hci_dev *hdev)
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{
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int ret = 0;
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- if (!test_bit(HCI_QUIRK_NO_SUSPEND_NOTIFIER, &hdev->quirks)) {
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+ if (!hdev->suspend_notifier.notifier_call &&
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+ !test_bit(HCI_QUIRK_NO_SUSPEND_NOTIFIER, &hdev->quirks)) {
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hdev->suspend_notifier.notifier_call = hci_suspend_notifier;
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ret = register_pm_notifier(&hdev->suspend_notifier);
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}
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@@ -2769,8 +2770,11 @@ int hci_unregister_suspend_notifier(struct hci_dev *hdev)
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{
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int ret = 0;
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- if (!test_bit(HCI_QUIRK_NO_SUSPEND_NOTIFIER, &hdev->quirks))
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+ if (hdev->suspend_notifier.notifier_call) {
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ret = unregister_pm_notifier(&hdev->suspend_notifier);
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+ if (!ret)
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+ hdev->suspend_notifier.notifier_call = NULL;
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+ }
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return ret;
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}
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