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Mon, 29 Nov 2021 07:22:28 +0000 Received: from PNZPR01MB4415.INDPRD01.PROD.OUTLOOK.COM ([fe80::7ca6:9165:19ec:4cd7]) by PNZPR01MB4415.INDPRD01.PROD.OUTLOOK.COM ([fe80::7ca6:9165:19ec:4cd7%5]) with mapi id 15.20.4734.024; Mon, 29 Nov 2021 07:22:28 +0000 From: Aditya Garg To: Thorsten Leemhuis CC: Marcel Holtmann , Orlando Chamberlain , Daniel Winkler , Greg KH , Johan Hedberg , "linux-bluetooth@vger.kernel.org" , "linux-kernel@vger.kernel.org" , Luiz Augusto von Dentz , "regressions@lists.linux.dev" , "sonnysasaka@chromium.org" , "stable@vger.kernel.org" Subject: [PATCH 1/6] Bluetooth: add quirk disabling LE Read Transmit Power Thread-Topic: [PATCH 1/6] Bluetooth: add quirk disabling LE Read Transmit Power Thread-Index: AQHX5PHdg9R7tTuOZUGKQm9G6AVEOA== Date: Mon, 29 Nov 2021 07:22:27 +0000 Message-ID: References: <20211001083412.3078-1-redecorating@protonmail.com> <70a875d0-7162-d149-dbc1-c2f5e1a8e701@leemhuis.info> <20211116090128.17546-1-redecorating@protonmail.com> <3B8E16FA-97BF-40E5-9149-BBC3E2A245FE@live.com> <52DEDC31-EEB2-4F39-905F-D5E3F2BBD6C0@live.com> <8919a36b-e485-500a-2722-529ffa0d2598@leemhuis.info> <20211117124717.12352-1-redecorating@protonmail.com> <40550C00-4EE5-480F-AFD4-A2ACA01F9DBB@live.com> <332a19f1-30f0-7058-ac18-c21cf78759bb@leemhuis.info> In-Reply-To: Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-ms-exchange-messagesentrepresentingtype: 1 x-tmn: [YYJnhi6fM2c3u0nOMpD1D4ZXGHeABSQzq2bOXc4+TLTlDhjwXx6l1e7ZotEQM/YN] x-ms-publictraffictype: Email x-ms-office365-filtering-correlation-id: 0b50db91-93ba-4369-78c6-08d9b308ffb7 x-ms-traffictypediagnostic: PNZPR01MB4494: x-microsoft-antispam: BCL:0; x-microsoft-antispam-message-info: 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 x-ms-exchange-antispam-messagedata-chunkcount: 1 x-ms-exchange-antispam-messagedata-0: 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 Content-Type: text/plain; charset="us-ascii" Content-ID: Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 X-OriginatorOrg: sct-15-20-3174-20-msonline-outlook-a1a1a.templateTenant X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-AuthSource: PNZPR01MB4415.INDPRD01.PROD.OUTLOOK.COM X-MS-Exchange-CrossTenant-RMS-PersistedConsumerOrg: 00000000-0000-0000-0000-000000000000 X-MS-Exchange-CrossTenant-Network-Message-Id: 0b50db91-93ba-4369-78c6-08d9b308ffb7 X-MS-Exchange-CrossTenant-originalarrivaltime: 29 Nov 2021 07:22:27.8212 (UTC) X-MS-Exchange-CrossTenant-fromentityheader: Hosted X-MS-Exchange-CrossTenant-id: 84df9e7f-e9f6-40af-b435-aaaaaaaaaaaa X-MS-Exchange-CrossTenant-rms-persistedconsumerorg: 00000000-0000-0000-0000-000000000000 X-MS-Exchange-Transport-CrossTenantHeadersStamped: PNZPR01MB4494 Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Aditya Garg 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/ma= x tx power values to HCI_TX_POWER_INVALID. Signed-off-by: Aditya Garg Tested-by: Aditya Garg --- 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, }; =20 /* 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, unsig= ned long opt) hci_req_add(req, HCI_OP_LE_READ_ADV_TX_POWER, 0, NULL); } =20 - 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);