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Tue, 30 Jun 2020 21:09:47 +0800 From: To: Subject: [PATCH v2] Bluetooth: btusb: USB alternate setting 1 for WBS Date: Tue, 30 Jun 2020 21:09:40 +0800 Message-ID: <20200630130940.14339-1-hildawu@realtek.com> X-Mailer: git-send-email 2.17.1 MIME-Version: 1.0 X-Originating-IP: [172.21.87.237] X-ClientProxiedBy: RTEXMB03.realtek.com.tw (172.21.6.96) To RTEXMB04.realtek.com.tw (172.21.6.97) X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20200630_141031_824954_CF211B46 X-CRM114-Status: GOOD ( 15.74 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: max.chou@realtek.com, johan.hedberg@gmail.com, kidman@realtek.com, linux-kernel@vger.kernel.org, linux-bluetooth@vger.kernel.org, alex_lu@realsil.com.cn, linux-mediatek@lists.infradead.org, matthias.bgg@gmail.com, linux-arm-kernel@lists.infradead.org Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org From: Hilda Wu RTL8822CE supports transparent WBS to apply USB alternate setting 1. Add a flag to the device match data to apply alternate setting 1 which meet the transfer speed for WBS support. Signed-off-by: Hilda Wu --- Changes in v2: - More descriptive commit log and short description. - Use BTUSB_USE_ALT1_FOR_WBS replace BTUSB_WBS_ALT1 for descriptive name. - Move alternate setting 1 check into the btusb_probe() function and adjust position of data->isoc for alternate setting check. --- --- drivers/bluetooth/btusb.c | 34 ++++++++++++++++++++-------------- 1 file changed, 20 insertions(+), 14 deletions(-) diff --git a/drivers/bluetooth/btusb.c b/drivers/bluetooth/btusb.c index c7cc8e594166..e4a12c58501e 100644 --- a/drivers/bluetooth/btusb.c +++ b/drivers/bluetooth/btusb.c @@ -453,6 +453,7 @@ static const struct dmi_system_id btusb_needs_reset_resume_table[] = { #define BTUSB_HW_RESET_ACTIVE 12 #define BTUSB_TX_WAIT_VND_EVT 13 #define BTUSB_WAKEUP_DISABLE 14 +#define BTUSB_USE_ALT1_FOR_WBS 15 struct btusb_data { struct hci_dev *hdev; @@ -1666,14 +1667,15 @@ static void btusb_work(struct work_struct *work) new_alts = data->sco_num; } } else if (data->air_mode == HCI_NOTIFY_ENABLE_SCO_TRANSP) { - - data->usb_alt6_packet_flow = true; - /* Check if Alt 6 is supported for Transparent audio */ - if (btusb_find_altsetting(data, 6)) + if (btusb_find_altsetting(data, 6)) { + data->usb_alt6_packet_flow = true; new_alts = 6; - else + } else if (test_bit(BTUSB_USE_ALT1_FOR_WBS, &data->flags)) { + new_alts = 1; + } else { bt_dev_err(hdev, "Device does not support ALT setting 6"); + } } if (btusb_switch_alt_setting(hdev, new_alts) < 0) @@ -3954,6 +3956,15 @@ static int btusb_probe(struct usb_interface *intf, btusb_check_needs_reset_resume(intf); } + if (id->driver_info & BTUSB_AMP) { + /* AMP controllers do not support SCO packets */ + data->isoc = NULL; + } else { + /* Interface orders are hardcoded in the specification */ + data->isoc = usb_ifnum_to_if(data->udev, ifnum_base + 1); + data->isoc_ifnum = ifnum_base + 1; + } + if (IS_ENABLED(CONFIG_BT_HCIBTUSB_RTL) && (id->driver_info & BTUSB_REALTEK)) { hdev->setup = btrtl_setup_realtek; @@ -3965,21 +3976,16 @@ static int btusb_probe(struct usb_interface *intf, * (DEVICE_REMOTE_WAKEUP) */ set_bit(BTUSB_WAKEUP_DISABLE, &data->flags); + if (btusb_find_altsetting(data, 1)) + set_bit(BTUSB_USE_ALT1_FOR_WBS, &data->flags); + else + bt_dev_err(hdev, "Device does not support ALT setting 1"); err = usb_autopm_get_interface(intf); if (err < 0) goto out_free_dev; } - if (id->driver_info & BTUSB_AMP) { - /* AMP controllers do not support SCO packets */ - data->isoc = NULL; - } else { - /* Interface orders are hardcoded in the specification */ - data->isoc = usb_ifnum_to_if(data->udev, ifnum_base + 1); - data->isoc_ifnum = ifnum_base + 1; - } - if (!reset) set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks); -- 2.17.1 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel