| Message ID | A6DD9616-E669-4382-95A0-B9DBAF46712D@live.com |
|---|---|
| State | Superseded |
| Headers | show |
| Series | [v7,1/2] Bluetooth: add quirk disabling LE Read Transmit Power | expand |
> On 30-Nov-2021, at 5:11 PM, Greg KH <gregkh@linuxfoundation.org> wrote: > > On Tue, Nov 30, 2021 at 11:38:58AM +0000, Aditya Garg wrote: >> From: Aditya Garg <gargaditya08@live.com> >> >> Some devices have a bug causing them to not work if they query >> LE tx power on startup. Thus we add a quirk in order to not query it >> and default min/max tx power values to HCI_TX_POWER_INVALID. >> >> Signed-off-by: Aditya Garg <gargaditya08@live.com> >> Reported-by: Orlando Chamberlain <redecorating@protonmail.com> >> Tested-by: Orlando Chamberlain <redecorating@protonmail.com> >> Link: >> https://lore.kernel.org/r/4970a940-211b-25d6-edab-21a815313954@protonmail.com >> Fixes: 7c395ea521e6 ("Bluetooth: Query LE tx power on startup") >> --- >> v7 :- Added Tested-by. >> include/net/bluetooth/hci.h | 9 +++++++++ >> net/bluetooth/hci_core.c | 3 ++- >> 2 files changed, 11 insertions(+), 1 deletion(-) >> >> diff --git a/include/net/bluetooth/hci.h b/include/net/bluetooth/hci.h >> index 63065bc01b766c..383342efcdc464 100644 >> --- a/include/net/bluetooth/hci.h >> +++ b/include/net/bluetooth/hci.h >> @@ -246,6 +246,15 @@ enum { >> * HCI after resume. >> */ >> HCI_QUIRK_NO_SUSPEND_NOTIFIER, >> + >> + /* >> + * When this quirk is set, LE tx power is not queried on startup >> + * and the min/max tx power values default to HCI_TX_POWER_INVALID. >> + * >> + * This quirk can be set before hci_register_dev is called or >> + * during the hdev->setup vendor callback. >> + */ >> + HCI_QUIRK_BROKEN_READ_TRANSMIT_POWER, >> }; >> >> /* HCI device flags */ >> diff --git a/net/bluetooth/hci_core.c b/net/bluetooth/hci_core.c >> index 8d33aa64846b1c..434c6878fe9640 100644 >> --- a/net/bluetooth/hci_core.c >> +++ b/net/bluetooth/hci_core.c >> @@ -619,7 +619,8 @@ static int hci_init3_req(struct hci_request *req, unsigned long opt) >> hci_req_add(req, HCI_OP_LE_READ_ADV_TX_POWER, 0, NULL); >> } >> >> - if (hdev->commands[38] & 0x80) { >> + if ((hdev->commands[38] & 0x80) && >> + !test_bit(HCI_QUIRK_BROKEN_READ_TRANSMIT_POWER, &hdev->quirks)) { > > This line is still not properly formatted. I hope its fine in the resent patch. I sent the patch as HTML by mistake. > > Please always use scripts/checkpatch.pl to find issues like this. > > thanks, > > greg k-h
diff --git a/include/net/bluetooth/hci.h b/include/net/bluetooth/hci.h index 63065bc01b766c..383342efcdc464 100644 --- a/include/net/bluetooth/hci.h +++ b/include/net/bluetooth/hci.h @@ -246,6 +246,15 @@ enum { * HCI after resume. */ HCI_QUIRK_NO_SUSPEND_NOTIFIER, + + /* + * When this quirk is set, LE tx power is not queried on startup + * and the min/max tx power values default to HCI_TX_POWER_INVALID. + * + * This quirk can be set before hci_register_dev is called or + * during the hdev->setup vendor callback. + */ + HCI_QUIRK_BROKEN_READ_TRANSMIT_POWER, }; /* HCI device flags */ diff --git a/net/bluetooth/hci_core.c b/net/bluetooth/hci_core.c index 8d33aa64846b1c..434c6878fe9640 100644 --- a/net/bluetooth/hci_core.c +++ b/net/bluetooth/hci_core.c @@ -619,7 +619,8 @@ static int hci_init3_req(struct hci_request *req, unsigned long opt) hci_req_add(req, HCI_OP_LE_READ_ADV_TX_POWER, 0, NULL); } - if (hdev->commands[38] & 0x80) { + if ((hdev->commands[38] & 0x80) && + !test_bit(HCI_QUIRK_BROKEN_READ_TRANSMIT_POWER, &hdev->quirks)) { /* Read LE Min/Max Tx Power*/ hci_req_add(req, HCI_OP_LE_READ_TRANSMIT_POWER, 0, NULL);