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[23.128.96.18]) by mx.google.com with ESMTP id gt42si19208383ejc.668.2021.07.12.20.24.39; Mon, 12 Jul 2021 20:25:04 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-bluetooth-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18; Authentication-Results: mx.google.com; spf=pass (google.com: domain of linux-bluetooth-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-bluetooth-owner@vger.kernel.org; dmarc=fail (p=NONE sp=NONE dis=NONE) header.from=intel.com Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231340AbhGMD02 (ORCPT + 99 others); Mon, 12 Jul 2021 23:26:28 -0400 Received: from mga17.intel.com ([192.55.52.151]:12331 "EHLO mga17.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229928AbhGMD02 (ORCPT ); Mon, 12 Jul 2021 23:26:28 -0400 X-IronPort-AV: E=McAfee;i="6200,9189,10043"; a="190469931" X-IronPort-AV: E=Sophos;i="5.84,235,1620716400"; d="scan'208";a="190469931" Received: from orsmga008.jf.intel.com ([10.7.209.65]) by fmsmga107.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 12 Jul 2021 20:23:39 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.84,235,1620716400"; d="scan'208";a="459418285" Received: from intel-lenovo-legion-y540-15irh-pg0.iind.intel.com ([10.224.186.95]) by orsmga008.jf.intel.com with ESMTP; 12 Jul 2021 20:23:37 -0700 From: Kiran K To: linux-bluetooth@vger.kernel.org Cc: Kiran K Subject: [PATCH v2] Bluetooth: btintel: Support Digital(N) + RF(N-1) combination Date: Tue, 13 Jul 2021 08:57:55 +0530 Message-Id: <20210713032755.19351-1-kiran.k@intel.com> X-Mailer: git-send-email 2.17.1 Precedence: bulk List-ID: X-Mailing-List: linux-bluetooth@vger.kernel.org New generation Intel controllers(N) need to support RF from (N-1) generation. Since PID comes from OTP present in RF module, *setup* function gets mapped to BTUSB_INTEL_NEW instead of BTUSB_INTEL_NEWGEN. This patch converges INTEL_NEW and INTEL_NEWGEN mappings and defines a new generic *setup* function. All the required information to load the correct driver is read from controller in generic *setup* and branchs out appropriately. Signed-off-by: Kiran K Reviewed-by: Chethan T N Reviewed-by: Srivatsa Ravishankar --- changes in v2: * For compatibility b/w CNVi and CNVr, instead of overriding the callbacks find out the required information at run time and branch out appropriately * review comments drivers/bluetooth/btintel.c | 149 ++++++++++++++++++++++++++++++------ drivers/bluetooth/btintel.h | 10 +++ drivers/bluetooth/btusb.c | 149 +++++++++++++++++++----------------- 3 files changed, 215 insertions(+), 93 deletions(-) diff --git a/drivers/bluetooth/btintel.c b/drivers/bluetooth/btintel.c index e44b6993cf91..b1a4e02c0680 100644 --- a/drivers/bluetooth/btintel.c +++ b/drivers/bluetooth/btintel.c @@ -58,8 +58,10 @@ int btintel_check_bdaddr(struct hci_dev *hdev) * address 00:03:19:9E:8B:00 can be found. These controllers are * fully operational, but have the danger of duplicate addresses * and that in turn can cause problems with Bluetooth operation. + * Also mark controllers having zero bdaddress */ - if (!bacmp(&bda->bdaddr, BDADDR_INTEL)) { + if (!bacmp(&bda->bdaddr, BDADDR_INTEL) || + !bacmp(&bda->bdaddr, BDADDR_ANY)) { bt_dev_err(hdev, "Found Intel default device address (%pMR)", &bda->bdaddr); set_bit(HCI_QUIRK_INVALID_BDADDR, &hdev->quirks); @@ -483,30 +485,15 @@ int btintel_version_info_tlv(struct hci_dev *hdev, struct intel_version_tlv *ver } EXPORT_SYMBOL_GPL(btintel_version_info_tlv); -int btintel_read_version_tlv(struct hci_dev *hdev, struct intel_version_tlv *version) +static int btintel_parse_version_tlv(struct hci_dev *hdev, struct sk_buff *skb, + struct intel_version_tlv *version) { - struct sk_buff *skb; - const u8 param[1] = { 0xFF }; - - if (!version) - return -EINVAL; - - skb = __hci_cmd_sync(hdev, 0xfc05, 1, param, HCI_CMD_TIMEOUT); - if (IS_ERR(skb)) { - bt_dev_err(hdev, "Reading Intel version information failed (%ld)", - PTR_ERR(skb)); - return PTR_ERR(skb); - } + int err = 0; - if (skb->data[0]) { - bt_dev_err(hdev, "Intel Read Version command failed (%02x)", - skb->data[0]); - kfree_skb(skb); - return -EIO; - } + memset(version, 0x00, sizeof(*version)); /* Consume Command Complete Status field */ - skb_pull(skb, 1); + skb_pull(skb, sizeof(__u8)); /* Event parameters contatin multiple TLVs. Read each of them * and only keep the required data. Also, it use existing legacy @@ -516,27 +503,62 @@ int btintel_read_version_tlv(struct hci_dev *hdev, struct intel_version_tlv *ver while (skb->len) { struct intel_tlv *tlv; + if (skb->len < sizeof(*tlv)) { + err = -EILSEQ; + break; + } + tlv = (struct intel_tlv *)skb->data; + + if (skb->len < (sizeof(*tlv) + tlv->len)) { + err = -EILSEQ; + break; + } + switch (tlv->type) { case INTEL_TLV_CNVI_TOP: + if (tlv->len != sizeof(__le32)) { + err = -EILSEQ; + break; + } version->cnvi_top = get_unaligned_le32(tlv->val); break; case INTEL_TLV_CNVR_TOP: + if (tlv->len != sizeof(__le32)) { + err = -EILSEQ; + break; + } version->cnvr_top = get_unaligned_le32(tlv->val); break; case INTEL_TLV_CNVI_BT: + if (tlv->len != sizeof(__le32)) { + err = -EILSEQ; + break; + } version->cnvi_bt = get_unaligned_le32(tlv->val); break; case INTEL_TLV_CNVR_BT: + if (tlv->len != sizeof(__le32)) { + err = -EILSEQ; + break; + } version->cnvr_bt = get_unaligned_le32(tlv->val); break; case INTEL_TLV_DEV_REV_ID: + if (tlv->len != sizeof(__le16)) { + err = -EILSEQ; + break; + } version->dev_rev_id = get_unaligned_le16(tlv->val); break; case INTEL_TLV_IMAGE_TYPE: version->img_type = tlv->val[0]; break; case INTEL_TLV_TIME_STAMP: + if (tlv->len != sizeof(__le16)) { + err = -EILSEQ; + break; + } /* If image type is Operational firmware (0x03), then * running FW Calendar Week and Year information can * be extracted from Timestamp information @@ -549,6 +571,10 @@ int btintel_read_version_tlv(struct hci_dev *hdev, struct intel_version_tlv *ver version->build_type = tlv->val[0]; break; case INTEL_TLV_BUILD_NUM: + if (tlv->len != sizeof(__le32)) { + err = -EILSEQ; + break; + } /* If image type is Operational firmware (0x03), then * running FW build number can be extracted from the * Build information @@ -569,6 +595,10 @@ int btintel_read_version_tlv(struct hci_dev *hdev, struct intel_version_tlv *ver version->debug_lock = tlv->val[0]; break; case INTEL_TLV_MIN_FW: + if (tlv->len != 3) { + err = -EILSEQ; + break; + } version->min_fw_build_nn = tlv->val[0]; version->min_fw_build_cw = tlv->val[1]; version->min_fw_build_yy = tlv->val[2]; @@ -580,21 +610,96 @@ int btintel_read_version_tlv(struct hci_dev *hdev, struct intel_version_tlv *ver version->sbe_type = tlv->val[0]; break; case INTEL_TLV_OTP_BDADDR: + if (tlv->len != sizeof(version->otp_bd_addr)) { + err = -EILSEQ; + break; + } memcpy(&version->otp_bd_addr, tlv->val, tlv->len); break; default: /* Ignore rest of information */ break; } + + if (err) + break; + /* consume the current tlv and move to next*/ skb_pull(skb, tlv->len + sizeof(*tlv)); } + return err; +} + +int btintel_read_version_tlv(struct hci_dev *hdev, struct intel_version_tlv *version) +{ + int err; + struct sk_buff *skb; + const u8 param[1] = { 0xFF }; + + if (!version) + return -EINVAL; + + skb = __hci_cmd_sync(hdev, 0xfc05, 1, param, HCI_CMD_TIMEOUT); + if (IS_ERR(skb)) { + bt_dev_err(hdev, "Reading Intel version information failed (%ld)", + PTR_ERR(skb)); + return PTR_ERR(skb); + } + + if (skb->data[0]) { + bt_dev_err(hdev, "Intel Read Version command failed (%02x)", + skb->data[0]); + kfree_skb(skb); + return -EIO; + } + + err = btintel_parse_version_tlv(hdev, skb, version); kfree_skb(skb); - return 0; + + return err; } EXPORT_SYMBOL_GPL(btintel_read_version_tlv); +int btintel_generic_read_version(struct hci_dev *hdev, + struct intel_version_tlv *ver_tlv, + struct intel_version *ver, bool *is_tlv) +{ + int err = 0; + struct sk_buff *skb; + const u8 param[1] = { 0xFF }; + + skb = __hci_cmd_sync(hdev, 0xfc05, 1, param, HCI_CMD_TIMEOUT); + if (IS_ERR(skb)) { + bt_dev_err(hdev, "Reading Intel version information failed (%ld)", + PTR_ERR(skb)); + return PTR_ERR(skb); + } + + if (skb->data[0]) { + bt_dev_err(hdev, "Intel Read Version command failed (%02x)", + skb->data[0]); + kfree_skb(skb); + return -EIO; + } + + if (skb->len < sizeof(struct intel_version)) + return -EILSEQ; + + if (skb->len == sizeof(struct intel_version) && + skb->data[1] == 0x37) { + *is_tlv = false; + memcpy(ver, skb->data, sizeof(*ver)); + } else { + *is_tlv = true; + err = btintel_parse_version_tlv(hdev, skb, ver_tlv); + } + + kfree_skb(skb); + return err; +} +EXPORT_SYMBOL_GPL(btintel_generic_read_version); + /* ------- REGMAP IBT SUPPORT ------- */ #define IBT_REG_MODE_8BIT 0x00 diff --git a/drivers/bluetooth/btintel.h b/drivers/bluetooth/btintel.h index d184064a5e7c..366cb746f9c4 100644 --- a/drivers/bluetooth/btintel.h +++ b/drivers/bluetooth/btintel.h @@ -175,6 +175,10 @@ int btintel_read_debug_features(struct hci_dev *hdev, struct intel_debug_features *features); int btintel_set_debug_features(struct hci_dev *hdev, const struct intel_debug_features *features); +int btintel_generic_read_version(struct hci_dev *hdev, + struct intel_version_tlv *ver_tlv, + struct intel_version *ver, + bool *is_tlv); #else static inline int btintel_check_bdaddr(struct hci_dev *hdev) @@ -307,4 +311,10 @@ static inline int btintel_set_debug_features(struct hci_dev *hdev, return -EOPNOTSUPP; } +static int btintel_generic_read_version(struct hci_dev *hdev, + struct intel_version_tlv *ver_tlv, + struct intel_version *ver, bool *is_tlv) +{ + return -EOPNOTSUPP; +} #endif diff --git a/drivers/bluetooth/btusb.c b/drivers/bluetooth/btusb.c index a9855a2dd561..6c5050bdcfcc 100644 --- a/drivers/bluetooth/btusb.c +++ b/drivers/bluetooth/btusb.c @@ -60,7 +60,6 @@ static struct usb_driver btusb_driver; #define BTUSB_WIDEBAND_SPEECH 0x400000 #define BTUSB_VALID_LE_STATES 0x800000 #define BTUSB_QCA_WCN6855 0x1000000 -#define BTUSB_INTEL_NEWGEN 0x2000000 static const struct usb_device_id btusb_table[] = { /* Generic Bluetooth USB device */ @@ -368,9 +367,9 @@ static const struct usb_device_id blacklist_table[] = { BTUSB_WIDEBAND_SPEECH }, { USB_DEVICE(0x8087, 0x0029), .driver_info = BTUSB_INTEL_NEW | BTUSB_WIDEBAND_SPEECH }, - { USB_DEVICE(0x8087, 0x0032), .driver_info = BTUSB_INTEL_NEWGEN | + { USB_DEVICE(0x8087, 0x0032), .driver_info = BTUSB_INTEL_NEW | BTUSB_WIDEBAND_SPEECH}, - { USB_DEVICE(0x8087, 0x0033), .driver_info = BTUSB_INTEL_NEWGEN | + { USB_DEVICE(0x8087, 0x0033), .driver_info = BTUSB_INTEL_NEW | BTUSB_WIDEBAND_SPEECH}, { USB_DEVICE(0x8087, 0x07da), .driver_info = BTUSB_CSR }, { USB_DEVICE(0x8087, 0x07dc), .driver_info = BTUSB_INTEL }, @@ -2521,8 +2520,8 @@ static int btusb_intel_download_firmware_newgen(struct hci_dev *hdev, return -EINVAL; /* The firmware variant determines if the device is in bootloader - * mode or is running operational firmware. The value 0x03 identifies - * the bootloader and the value 0x23 identifies the operational + * mode or is running operational firmware. The value 0x23 identifies + * the bootloader and the value 0x03 identifies the operational * firmware. * * When the operational firmware is already present, then only @@ -2536,14 +2535,14 @@ static int btusb_intel_download_firmware_newgen(struct hci_dev *hdev, if (ver->img_type == 0x03) { clear_bit(BTUSB_BOOTLOADER, &data->flags); btintel_check_bdaddr(hdev); - } - - /* If the OTP has no valid Bluetooth device address, then there will - * also be no valid address for the operational firmware. - */ - if (!bacmp(&ver->otp_bd_addr, BDADDR_ANY)) { - bt_dev_info(hdev, "No device address configured"); - set_bit(HCI_QUIRK_INVALID_BDADDR, &hdev->quirks); + } else { + /* In Boot mode, bd address is part of tlv data. Check for + * valid bd address + */ + if (!bacmp(&ver->otp_bd_addr, BDADDR_ANY)) { + bt_dev_info(hdev, "No device address configured"); + set_bit(HCI_QUIRK_INVALID_BDADDR, &hdev->quirks); + } } btusb_setup_intel_newgen_get_fw_name(ver, fwname, sizeof(fwname), "sfi"); @@ -2842,10 +2841,9 @@ static int btusb_intel_boot(struct hci_dev *hdev, u32 boot_addr) return err; } -static int btusb_setup_intel_new(struct hci_dev *hdev) +static int btusb_setup_intel_new(struct hci_dev *hdev, struct intel_version *ver) { struct btusb_data *data = hci_get_drvdata(hdev); - struct intel_version ver; struct intel_boot_params params; u32 boot_param; char ddcname[64]; @@ -2860,27 +2858,16 @@ static int btusb_setup_intel_new(struct hci_dev *hdev) */ boot_param = 0x00000000; - /* Read the Intel version information to determine if the device - * is in bootloader mode or if it already has operational firmware - * loaded. - */ - err = btintel_read_version(hdev, &ver); - if (err) { - bt_dev_err(hdev, "Intel Read version failed (%d)", err); - btintel_reset_to_bootloader(hdev); - return err; - } - - err = btintel_version_info(hdev, &ver); + err = btintel_version_info(hdev, ver); if (err) return err; - err = btusb_intel_download_firmware(hdev, &ver, ¶ms, &boot_param); + err = btusb_intel_download_firmware(hdev, ver, ¶ms, &boot_param); if (err) return err; /* controller is already having an operational firmware */ - if (ver.fw_variant == 0x23) + if (ver->fw_variant == 0x23) goto finish; err = btusb_intel_boot(hdev, boot_param); @@ -2889,7 +2876,7 @@ static int btusb_setup_intel_new(struct hci_dev *hdev) clear_bit(BTUSB_BOOTLOADER, &data->flags); - err = btusb_setup_intel_new_get_fw_name(&ver, ¶ms, ddcname, + err = btusb_setup_intel_new_get_fw_name(ver, ¶ms, ddcname, sizeof(ddcname), "ddc"); if (err < 0) { @@ -2913,17 +2900,17 @@ static int btusb_setup_intel_new(struct hci_dev *hdev) btintel_set_debug_features(hdev, &features); /* Read the Intel version information after loading the FW */ - err = btintel_read_version(hdev, &ver); + err = btintel_read_version(hdev, ver); if (err) return err; - btintel_version_info(hdev, &ver); + btintel_version_info(hdev, ver); finish: /* All Intel controllers that support the Microsoft vendor * extension are using 0xFC1E for VsMsftOpCode. */ - switch (ver.hw_variant) { + switch (ver->hw_variant) { case 0x11: /* JfP */ case 0x12: /* ThP */ case 0x13: /* HrP */ @@ -2944,14 +2931,13 @@ static int btusb_setup_intel_new(struct hci_dev *hdev) return 0; } -static int btusb_setup_intel_newgen(struct hci_dev *hdev) +static int btusb_setup_intel_newgen(struct hci_dev *hdev, struct intel_version_tlv *version) { struct btusb_data *data = hci_get_drvdata(hdev); u32 boot_param; char ddcname[64]; int err; struct intel_debug_features features; - struct intel_version_tlv version; bt_dev_dbg(hdev, ""); @@ -2961,27 +2947,16 @@ static int btusb_setup_intel_newgen(struct hci_dev *hdev) */ boot_param = 0x00000000; - /* Read the Intel version information to determine if the device - * is in bootloader mode or if it already has operational firmware - * loaded. - */ - err = btintel_read_version_tlv(hdev, &version); - if (err) { - bt_dev_err(hdev, "Intel Read version failed (%d)", err); - btintel_reset_to_bootloader(hdev); - return err; - } - - err = btintel_version_info_tlv(hdev, &version); + err = btintel_version_info_tlv(hdev, version); if (err) return err; - err = btusb_intel_download_firmware_newgen(hdev, &version, &boot_param); + err = btusb_intel_download_firmware_newgen(hdev, version, &boot_param); if (err) return err; /* check if controller is already having an operational firmware */ - if (version.img_type == 0x03) + if (version->img_type == 0x03) goto finish; err = btusb_intel_boot(hdev, boot_param); @@ -2990,7 +2965,7 @@ static int btusb_setup_intel_newgen(struct hci_dev *hdev) clear_bit(BTUSB_BOOTLOADER, &data->flags); - btusb_setup_intel_newgen_get_fw_name(&version, ddcname, sizeof(ddcname), + btusb_setup_intel_newgen_get_fw_name(version, ddcname, sizeof(ddcname), "ddc"); /* Once the device is running in operational mode, it needs to * apply the device configuration (DDC) parameters. @@ -3009,11 +2984,11 @@ static int btusb_setup_intel_newgen(struct hci_dev *hdev) btintel_set_debug_features(hdev, &features); /* Read the Intel version information after loading the FW */ - err = btintel_read_version_tlv(hdev, &version); + err = btintel_read_version_tlv(hdev, version); if (err) return err; - btintel_version_info_tlv(hdev, &version); + btintel_version_info_tlv(hdev, version); finish: /* Set the event mask for Intel specific vendor events. This enables @@ -3027,6 +3002,56 @@ static int btusb_setup_intel_newgen(struct hci_dev *hdev) return 0; } + +static bool btintel_is_newgen_controller(struct hci_dev *hdev, u32 cnvi) +{ + bt_dev_dbg(hdev, "CNVi - %x", cnvi & 0xFFF); + + switch (cnvi & 0xFFF) { + case 0x400: /* Slr */ + case 0x401: /* Slr-F */ + case 0x410: /* TyP */ + return true; + } + return false; +} + +static int btusb_setup_intel_generic(struct hci_dev *hdev) +{ + struct intel_version_tlv ver_tlv; + struct intel_version ver; + bool is_tlv; + int err; + + err = btintel_generic_read_version(hdev, &ver_tlv, &ver, &is_tlv); + if (err) { + bt_dev_err(hdev, "Intel Read version failed (%d)", err); + btintel_reset_to_bootloader(hdev); + goto done; + } + + if (!is_tlv) { + err = btusb_setup_intel_new(hdev, &ver); + } else { + /* In OP mode Quasar/Pulsar ram products returns TLV data. + * Find out CNVi and then branch out appropriately + */ + if (btintel_is_newgen_controller(hdev, ver_tlv.cnvi_top)) { + err = btusb_setup_intel_newgen(hdev, &ver_tlv); + } else { + err = btintel_read_version(hdev, &ver); + if (err) { + bt_dev_err(hdev, "Intel Read version failed (%d)", err); + goto done; + } + err = btusb_setup_intel_new(hdev, &ver); + } + } +done: + + return err; +} + static int btusb_shutdown_intel(struct hci_dev *hdev) { struct sk_buff *skb; @@ -4649,21 +4674,7 @@ static int btusb_probe(struct usb_interface *intf, if (id->driver_info & BTUSB_INTEL_NEW) { hdev->manufacturer = 2; hdev->send = btusb_send_frame_intel; - hdev->setup = btusb_setup_intel_new; - hdev->shutdown = btusb_shutdown_intel_new; - hdev->hw_error = btintel_hw_error; - hdev->set_diag = btintel_set_diag; - hdev->set_bdaddr = btintel_set_bdaddr; - hdev->cmd_timeout = btusb_intel_cmd_timeout; - set_bit(HCI_QUIRK_STRICT_DUPLICATE_FILTER, &hdev->quirks); - set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks); - set_bit(HCI_QUIRK_NON_PERSISTENT_DIAG, &hdev->quirks); - } - - if (id->driver_info & BTUSB_INTEL_NEWGEN) { - hdev->manufacturer = 2; - hdev->send = btusb_send_frame_intel; - hdev->setup = btusb_setup_intel_newgen; + hdev->setup = btusb_setup_intel_generic; hdev->shutdown = btusb_shutdown_intel_new; hdev->hw_error = btintel_hw_error; hdev->set_diag = btintel_set_diag; @@ -4672,10 +4683,6 @@ static int btusb_probe(struct usb_interface *intf, set_bit(HCI_QUIRK_STRICT_DUPLICATE_FILTER, &hdev->quirks); set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks); set_bit(HCI_QUIRK_NON_PERSISTENT_DIAG, &hdev->quirks); - - data->recv_event = btusb_recv_event_intel; - data->recv_bulk = btusb_recv_bulk_intel; - set_bit(BTUSB_BOOTLOADER, &data->flags); } if (id->driver_info & BTUSB_MARVELL) -- 2.17.1