From patchwork Mon May 20 08:22:52 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Nobuaki Tsunashima X-Patchwork-Id: 798032 Received: from smtp9.infineon.com (smtp9.infineon.com [217.10.52.204]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 4AAED1BC23 for ; Mon, 20 May 2024 08:23:00 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=217.10.52.204 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1716193383; cv=none; b=c1KOOodmYTmdiy6jLhxeLSprzNVwrqv08GmNnQ7SbCKGYXxCNOrw7QC6qst9BwW3Z5iPdEd/lV+leWHl9RAQQ5ULG/Z+48Jgv5zIgEAYqpqLTu3AsDian0bqtrFg0S0aYxUHg0p2iAsOLCnsbPIiKje2HPPj7/ATufb+PNEcsME= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1716193383; c=relaxed/simple; bh=bGAyD3ixI6iTBtEyZPh/mmBmmc00y8EuZD435YwkgKg=; h=From:To:CC:Subject:Date:Message-ID:Content-Type:MIME-Version; b=ULnpiByqx3am0VRHLF58J/3/5MfITYBIMgQ9LdCmUhMTXEKrHlHfa3m0s72YGIfaWXDwiODgi+RvaCIjbpL/RXF/s05NvoeNSD5KU1cgxBOYOHyWoepbKPVtIRFnvdpHqIksvkhFNHUyXqm8IRDk8Jr04Wz5lqkczOaDRKRn8vY= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=infineon.com; spf=pass smtp.mailfrom=infineon.com; dkim=pass (1024-bit key) header.d=infineon.com header.i=@infineon.com header.b=TPqoTGqq; arc=none smtp.client-ip=217.10.52.204 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=infineon.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=infineon.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=infineon.com header.i=@infineon.com header.b="TPqoTGqq" DKIM-Signature: v=1; a=rsa-sha256; c=simple/simple; d=infineon.com; i=@infineon.com; q=dns/txt; s=IFXMAIL; t=1716193382; x=1747729382; h=from:to:cc:subject:date:message-id: content-transfer-encoding:mime-version; bh=bGAyD3ixI6iTBtEyZPh/mmBmmc00y8EuZD435YwkgKg=; b=TPqoTGqq1XIxiYN+cRfVWfy9VUNsqvVoN4Duxmp2Dr8XVSKKCrELd4wE MlKlQjaL+aDpBa4PmBwlyfHvbPzzQ650VyQkUYlMMMQpQt5+rrRgTNMo8 izzwKko4oOsbQRo3lvjNuw1t6SLugFrd5pfnP+qglqesm5SP8nEnQMWCW 8=; X-IronPort-AV: E=McAfee;i="6600,9927,11077"; a="19490355" X-IronPort-AV: E=Sophos;i="6.08,174,1712613600"; d="scan'208";a="19490355" Received: from unknown (HELO MUCSE812.infineon.com) ([172.23.29.38]) by smtp9.infineon.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 20 May 2024 10:22:54 +0200 Received: from MUCSE837.infineon.com (172.23.7.109) by MUCSE812.infineon.com (172.23.29.38) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.1118.40; Mon, 20 May 2024 10:22:53 +0200 Received: from MUCSE832.infineon.com (172.23.7.104) by MUCSE837.infineon.com (172.23.7.109) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.1118.40; Mon, 20 May 2024 10:22:52 +0200 Received: from MUCSE832.infineon.com ([fe80::6918:9b7d:1c9c:3175]) by MUCSE832.infineon.com ([fe80::6918:9b7d:1c9c:3175%15]) with mapi id 15.02.1118.040; Mon, 20 May 2024 10:22:52 +0200 From: To: , CC: Subject: [PATCH v2] Patch for CYW4373 hci up fail issue Thread-Topic: [PATCH v2] Patch for CYW4373 hci up fail issue Thread-Index: Adqqjj3ae2mX8VZUTA2IVSUTW9hBaw== Date: Mon, 20 May 2024 08:22:52 +0000 Message-ID: <016dd2b28cd5435ba6f13b01d4da0d44@infineon.com> Accept-Language: ja-JP, en-US Content-Language: ja-JP X-MS-Has-Attach: X-MS-TNEF-Correlator: Precedence: bulk X-Mailing-List: linux-bluetooth@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 CYW4373 ROM FW has an issue that it claims LE_Read_Transmit_Power command as supported in a response of Read_Local_Supported_Command command but rejects the LE_Read_Transmit_Power command with "Unknown HCI Command" status. Due to the issue, Bluetooth driver of 5.15 and later kernel fails to hci up. Especially in USB i/f case, it would be difficult to download patch FW that includes Its fix unless hci is up. The patch forces the driver to skip LE_Read_Transmit_Power Command when it detects CYW4373 with ROM FW build. Signed-off-by: Nobuaki Tsunashima --- V1 -> V2: Fix several coding style warnings. drivers/bluetooth/btbcm.c | 33 ++++++++++++++++++++++++++++++++- drivers/bluetooth/btusb.c | 4 ++++ 2 files changed, 36 insertions(+), 1 deletion(-) diff --git a/drivers/bluetooth/btbcm.c b/drivers/bluetooth/btbcm.c index 0a5445ac5e1b..da4718a268d0 100644 --- a/drivers/bluetooth/btbcm.c +++ b/drivers/bluetooth/btbcm.c @@ -437,18 +437,49 @@ static const struct dmi_system_id disable_broken_read_transmit_power[] = { { } }; +struct bcm_chip_version_table { + u8 chip_id; + u16 baseline; +}; +#define BCM_ROMFW_BASELINE_NUM 0xFFFF +static const struct bcm_chip_version_table disable_broken_read_transmit_power_by_chip_ver[] = { + {0x87, BCM_ROMFW_BASELINE_NUM} /* CYW4373/4373E */ +}; +static bool btbcm_is_disable_broken_read_tx_power_by_chip_ver(u8 chip_id, u16 baseline) +{ + int i; + int table_size = ARRAY_SIZE(disable_broken_read_transmit_power_by_chip_ver); + const struct bcm_chip_version_table *entry = + &disable_broken_read_transmit_power_by_chip_ver[0]; + + for (i = 0 ; i < table_size ; i++, entry++) + { + if ((chip_id == entry->chip_id) && (baseline == entry->baseline)) + return true; + } + + return false; +} + static int btbcm_read_info(struct hci_dev *hdev) { struct sk_buff *skb; + u8 chip_id; + u16 baseline; /* Read Verbose Config Version Info */ skb = btbcm_read_verbose_config(hdev); if (IS_ERR(skb)) return PTR_ERR(skb); - + chip_id = skb->data[1]; + baseline = skb->data[3] | (skb->data[4] << 8); bt_dev_info(hdev, "BCM: chip id %u", skb->data[1]); kfree_skb(skb); + /* Check Chip ID and disable broken Read LE Min/Max Tx Power */ + if (btbcm_is_disable_broken_read_tx_power_by_chip_ver(chip_id, baseline)) + set_bit(HCI_QUIRK_BROKEN_READ_TRANSMIT_POWER, &hdev->quirks); + return 0; } diff --git a/drivers/bluetooth/btusb.c b/drivers/bluetooth/btusb.c index d31edad7a056..52561c8d8828 100644 --- a/drivers/bluetooth/btusb.c +++ b/drivers/bluetooth/btusb.c @@ -142,6 +142,10 @@ static const struct usb_device_id btusb_table[] = { { USB_VENDOR_AND_INTERFACE_INFO(0x04ca, 0xff, 0x01, 0x01), .driver_info = BTUSB_BCM_PATCHRAM }, + /* Cypress devices with vendor specific id */ + { USB_VENDOR_AND_INTERFACE_INFO(0x04b4, 0xff, 0x01, 0x01), + .driver_info = BTUSB_BCM_PATCHRAM }, + /* Broadcom devices with vendor specific id */ { USB_VENDOR_AND_INTERFACE_INFO(0x0a5c, 0xff, 0x01, 0x01), .driver_info = BTUSB_BCM_PATCHRAM },