CoCalc -- btusb.c

GitHub Repository: torvalds/linux
Path: blob/master/drivers/bluetooth/btusb.c
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// SPDX-License-Identifier: GPL-2.0-or-later
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/*
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 *
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 *  Generic Bluetooth USB driver
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 *
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 *  Copyright (C) 2005-2008  Marcel Holtmann <[email protected]>
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 */
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#include <linux/dmi.h>
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#include <linux/module.h>
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#include <linux/usb.h>
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#include <linux/usb/quirks.h>
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#include <linux/firmware.h>
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#include <linux/iopoll.h>
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#include <linux/of_device.h>
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#include <linux/of_irq.h>
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#include <linux/suspend.h>
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#include <linux/gpio/consumer.h>
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#include <linux/debugfs.h>
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#include <linux/unaligned.h>
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#include <net/bluetooth/bluetooth.h>
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#include <net/bluetooth/hci_core.h>
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#include <net/bluetooth/hci_drv.h>
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#include "btintel.h"
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#include "btbcm.h"
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#include "btrtl.h"
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#include "btmtk.h"
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#define VERSION "0.8"
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static bool disable_scofix;
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static bool force_scofix;
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static bool enable_autosuspend = IS_ENABLED(CONFIG_BT_HCIBTUSB_AUTOSUSPEND);
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static bool enable_poll_sync = IS_ENABLED(CONFIG_BT_HCIBTUSB_POLL_SYNC);
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static bool reset = true;
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static struct usb_driver btusb_driver;
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#define BTUSB_IGNORE			BIT(0)
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#define BTUSB_DIGIANSWER		BIT(1)
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#define BTUSB_CSR			BIT(2)
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#define BTUSB_SNIFFER			BIT(3)
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#define BTUSB_BCM92035			BIT(4)
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#define BTUSB_BROKEN_ISOC		BIT(5)
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#define BTUSB_WRONG_SCO_MTU		BIT(6)
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#define BTUSB_ATH3012			BIT(7)
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#define BTUSB_INTEL_COMBINED		BIT(8)
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#define BTUSB_INTEL_BOOT		BIT(9)
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#define BTUSB_BCM_PATCHRAM		BIT(10)
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#define BTUSB_MARVELL			BIT(11)
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#define BTUSB_SWAVE			BIT(12)
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#define BTUSB_AMP			BIT(13)
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#define BTUSB_QCA_ROME			BIT(14)
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#define BTUSB_BCM_APPLE			BIT(15)
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#define BTUSB_REALTEK			BIT(16)
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#define BTUSB_BCM2045			BIT(17)
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#define BTUSB_IFNUM_2			BIT(18)
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#define BTUSB_CW6622			BIT(19)
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#define BTUSB_MEDIATEK			BIT(20)
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#define BTUSB_WIDEBAND_SPEECH		BIT(21)
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#define BTUSB_INVALID_LE_STATES		BIT(22)
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#define BTUSB_QCA_WCN6855		BIT(23)
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#define BTUSB_INTEL_BROKEN_SHUTDOWN_LED	BIT(24)
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#define BTUSB_INTEL_BROKEN_INITIAL_NCMD BIT(25)
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#define BTUSB_INTEL_NO_WBS_SUPPORT	BIT(26)
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#define BTUSB_ACTIONS_SEMI		BIT(27)
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#define BTUSB_BARROT			BIT(28)
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static const struct usb_device_id btusb_table[] = {
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	/* Generic Bluetooth USB device */
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	{ USB_DEVICE_INFO(0xe0, 0x01, 0x01) },
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	/* Generic Bluetooth AMP device */
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	{ USB_DEVICE_INFO(0xe0, 0x01, 0x04), .driver_info = BTUSB_AMP },
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	/* Generic Bluetooth USB interface */
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	{ USB_INTERFACE_INFO(0xe0, 0x01, 0x01) },
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	/* Apple-specific (Broadcom) devices */
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	{ USB_VENDOR_AND_INTERFACE_INFO(0x05ac, 0xff, 0x01, 0x01),
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	  .driver_info = BTUSB_BCM_APPLE | BTUSB_IFNUM_2 },
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	/* MediaTek MT76x0E */
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	{ USB_DEVICE(0x0e8d, 0x763f) },
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	/* Broadcom SoftSailing reporting vendor specific */
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	{ USB_DEVICE(0x0a5c, 0x21e1) },
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	/* Apple MacBookPro 7,1 */
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	{ USB_DEVICE(0x05ac, 0x8213) },
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	/* Apple iMac11,1 */
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	{ USB_DEVICE(0x05ac, 0x8215) },
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	/* Apple MacBookPro6,2 */
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	{ USB_DEVICE(0x05ac, 0x8218) },
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	/* Apple MacBookAir3,1, MacBookAir3,2 */
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	{ USB_DEVICE(0x05ac, 0x821b) },
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	/* Apple MacBookAir4,1 */
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	{ USB_DEVICE(0x05ac, 0x821f) },
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	/* Apple MacBookPro8,2 */
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	{ USB_DEVICE(0x05ac, 0x821a) },
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	/* Apple MacMini5,1 */
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	{ USB_DEVICE(0x05ac, 0x8281) },
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	/* AVM BlueFRITZ! USB v2.0 */
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	{ USB_DEVICE(0x057c, 0x3800), .driver_info = BTUSB_SWAVE },
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	/* Bluetooth Ultraport Module from IBM */
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	{ USB_DEVICE(0x04bf, 0x030a) },
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	/* ALPS Modules with non-standard id */
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	{ USB_DEVICE(0x044e, 0x3001) },
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	{ USB_DEVICE(0x044e, 0x3002) },
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	/* Ericsson with non-standard id */
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	{ USB_DEVICE(0x0bdb, 0x1002) },
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	/* Canyon CN-BTU1 with HID interfaces */
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	{ USB_DEVICE(0x0c10, 0x0000) },
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	/* Broadcom BCM20702B0 (Dynex/Insignia) */
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	{ USB_DEVICE(0x19ff, 0x0239), .driver_info = BTUSB_BCM_PATCHRAM },
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	/* Broadcom BCM43142A0 (Foxconn/Lenovo) */
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	{ USB_VENDOR_AND_INTERFACE_INFO(0x105b, 0xff, 0x01, 0x01),
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	  .driver_info = BTUSB_BCM_PATCHRAM },
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	/* Broadcom BCM920703 (HTC Vive) */
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	{ USB_VENDOR_AND_INTERFACE_INFO(0x0bb4, 0xff, 0x01, 0x01),
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	  .driver_info = BTUSB_BCM_PATCHRAM },
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	/* Foxconn - Hon Hai */
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	{ USB_VENDOR_AND_INTERFACE_INFO(0x0489, 0xff, 0x01, 0x01),
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	  .driver_info = BTUSB_BCM_PATCHRAM },
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	/* Lite-On Technology - Broadcom based */
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	{ USB_VENDOR_AND_INTERFACE_INFO(0x04ca, 0xff, 0x01, 0x01),
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	  .driver_info = BTUSB_BCM_PATCHRAM },
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	/* Broadcom devices with vendor specific id */
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	{ USB_VENDOR_AND_INTERFACE_INFO(0x0a5c, 0xff, 0x01, 0x01),
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	  .driver_info = BTUSB_BCM_PATCHRAM },
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	/* ASUSTek Computer - Broadcom based */
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	{ USB_VENDOR_AND_INTERFACE_INFO(0x0b05, 0xff, 0x01, 0x01),
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	  .driver_info = BTUSB_BCM_PATCHRAM },
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	/* Belkin F8065bf - Broadcom based */
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	{ USB_VENDOR_AND_INTERFACE_INFO(0x050d, 0xff, 0x01, 0x01),
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	  .driver_info = BTUSB_BCM_PATCHRAM },
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	/* IMC Networks - Broadcom based */
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	{ USB_VENDOR_AND_INTERFACE_INFO(0x13d3, 0xff, 0x01, 0x01),
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	  .driver_info = BTUSB_BCM_PATCHRAM },
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	/* Dell Computer - Broadcom based  */
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	{ USB_VENDOR_AND_INTERFACE_INFO(0x413c, 0xff, 0x01, 0x01),
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	  .driver_info = BTUSB_BCM_PATCHRAM },
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	/* Toshiba Corp - Broadcom based */
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	{ USB_VENDOR_AND_INTERFACE_INFO(0x0930, 0xff, 0x01, 0x01),
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	  .driver_info = BTUSB_BCM_PATCHRAM },
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	/* Intel Bluetooth USB Bootloader (RAM module) */
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	{ USB_DEVICE(0x8087, 0x0a5a),
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	  .driver_info = BTUSB_INTEL_BOOT | BTUSB_BROKEN_ISOC },
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	{ }	/* Terminating entry */
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};
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MODULE_DEVICE_TABLE(usb, btusb_table);
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static const struct usb_device_id quirks_table[] = {
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	/* CSR BlueCore devices */
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	{ USB_DEVICE(0x0a12, 0x0001), .driver_info = BTUSB_CSR },
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	/* Broadcom BCM2033 without firmware */
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	{ USB_DEVICE(0x0a5c, 0x2033), .driver_info = BTUSB_IGNORE },
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	/* Broadcom BCM2045 devices */
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	{ USB_DEVICE(0x0a5c, 0x2045), .driver_info = BTUSB_BCM2045 },
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	/* Atheros 3011 with sflash firmware */
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	{ USB_DEVICE(0x0489, 0xe027), .driver_info = BTUSB_IGNORE },
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	{ USB_DEVICE(0x0489, 0xe03d), .driver_info = BTUSB_IGNORE },
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	{ USB_DEVICE(0x04f2, 0xaff1), .driver_info = BTUSB_IGNORE },
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	{ USB_DEVICE(0x0930, 0x0215), .driver_info = BTUSB_IGNORE },
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	{ USB_DEVICE(0x0cf3, 0x3002), .driver_info = BTUSB_IGNORE },
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	{ USB_DEVICE(0x0cf3, 0xe019), .driver_info = BTUSB_IGNORE },
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	{ USB_DEVICE(0x13d3, 0x3304), .driver_info = BTUSB_IGNORE },
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	/* Atheros AR9285 Malbec with sflash firmware */
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	{ USB_DEVICE(0x03f0, 0x311d), .driver_info = BTUSB_IGNORE },
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	/* Atheros 3012 with sflash firmware */
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	{ USB_DEVICE(0x0489, 0xe04d), .driver_info = BTUSB_ATH3012 },
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	{ USB_DEVICE(0x0489, 0xe04e), .driver_info = BTUSB_ATH3012 },
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	{ USB_DEVICE(0x0489, 0xe056), .driver_info = BTUSB_ATH3012 },
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	{ USB_DEVICE(0x0489, 0xe057), .driver_info = BTUSB_ATH3012 },
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	{ USB_DEVICE(0x0489, 0xe05f), .driver_info = BTUSB_ATH3012 },
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	{ USB_DEVICE(0x0489, 0xe076), .driver_info = BTUSB_ATH3012 },
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	{ USB_DEVICE(0x0489, 0xe078), .driver_info = BTUSB_ATH3012 },
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	{ USB_DEVICE(0x0489, 0xe095), .driver_info = BTUSB_ATH3012 },
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	{ USB_DEVICE(0x04c5, 0x1330), .driver_info = BTUSB_ATH3012 },
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	{ USB_DEVICE(0x04ca, 0x3004), .driver_info = BTUSB_ATH3012 },
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	{ USB_DEVICE(0x04ca, 0x3005), .driver_info = BTUSB_ATH3012 },
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	{ USB_DEVICE(0x04ca, 0x3006), .driver_info = BTUSB_ATH3012 },
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	{ USB_DEVICE(0x04ca, 0x3007), .driver_info = BTUSB_ATH3012 },
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	{ USB_DEVICE(0x04ca, 0x3008), .driver_info = BTUSB_ATH3012 },
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	{ USB_DEVICE(0x04ca, 0x300b), .driver_info = BTUSB_ATH3012 },
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	{ USB_DEVICE(0x04ca, 0x300d), .driver_info = BTUSB_ATH3012 },
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	{ USB_DEVICE(0x04ca, 0x300f), .driver_info = BTUSB_ATH3012 },
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	{ USB_DEVICE(0x04ca, 0x3010), .driver_info = BTUSB_ATH3012 },
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	{ USB_DEVICE(0x04ca, 0x3014), .driver_info = BTUSB_ATH3012 },
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	{ USB_DEVICE(0x04ca, 0x3018), .driver_info = BTUSB_ATH3012 },
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	{ USB_DEVICE(0x0930, 0x0219), .driver_info = BTUSB_ATH3012 },
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	{ USB_DEVICE(0x0930, 0x021c), .driver_info = BTUSB_ATH3012 },
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	{ USB_DEVICE(0x0930, 0x0220), .driver_info = BTUSB_ATH3012 },
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	{ USB_DEVICE(0x0930, 0x0227), .driver_info = BTUSB_ATH3012 },
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	{ USB_DEVICE(0x0b05, 0x17d0), .driver_info = BTUSB_ATH3012 },
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	{ USB_DEVICE(0x0cf3, 0x0036), .driver_info = BTUSB_ATH3012 },
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	{ USB_DEVICE(0x0cf3, 0x3004), .driver_info = BTUSB_ATH3012 },
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	{ USB_DEVICE(0x0cf3, 0x3008), .driver_info = BTUSB_ATH3012 },
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	{ USB_DEVICE(0x0cf3, 0x311d), .driver_info = BTUSB_ATH3012 },
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	{ USB_DEVICE(0x0cf3, 0x311e), .driver_info = BTUSB_ATH3012 },
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	{ USB_DEVICE(0x0cf3, 0x311f), .driver_info = BTUSB_ATH3012 },
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	{ USB_DEVICE(0x0cf3, 0x3121), .driver_info = BTUSB_ATH3012 },
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	{ USB_DEVICE(0x0cf3, 0x817a), .driver_info = BTUSB_ATH3012 },
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	{ USB_DEVICE(0x0cf3, 0x817b), .driver_info = BTUSB_ATH3012 },
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	{ USB_DEVICE(0x0cf3, 0xe003), .driver_info = BTUSB_ATH3012 },
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	{ USB_DEVICE(0x0cf3, 0xe004), .driver_info = BTUSB_ATH3012 },
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	{ USB_DEVICE(0x0cf3, 0xe005), .driver_info = BTUSB_ATH3012 },
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	{ USB_DEVICE(0x0cf3, 0xe006), .driver_info = BTUSB_ATH3012 },
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	{ USB_DEVICE(0x13d3, 0x3362), .driver_info = BTUSB_ATH3012 },
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	{ USB_DEVICE(0x13d3, 0x3375), .driver_info = BTUSB_ATH3012 },
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	{ USB_DEVICE(0x13d3, 0x3393), .driver_info = BTUSB_ATH3012 },
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	{ USB_DEVICE(0x13d3, 0x3395), .driver_info = BTUSB_ATH3012 },
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	{ USB_DEVICE(0x13d3, 0x3402), .driver_info = BTUSB_ATH3012 },
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	{ USB_DEVICE(0x13d3, 0x3408), .driver_info = BTUSB_ATH3012 },
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	{ USB_DEVICE(0x13d3, 0x3423), .driver_info = BTUSB_ATH3012 },
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	{ USB_DEVICE(0x13d3, 0x3432), .driver_info = BTUSB_ATH3012 },
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	{ USB_DEVICE(0x13d3, 0x3472), .driver_info = BTUSB_ATH3012 },
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	{ USB_DEVICE(0x13d3, 0x3474), .driver_info = BTUSB_ATH3012 },
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	{ USB_DEVICE(0x13d3, 0x3487), .driver_info = BTUSB_ATH3012 },
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	{ USB_DEVICE(0x13d3, 0x3490), .driver_info = BTUSB_ATH3012 },
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	/* Atheros AR5BBU12 with sflash firmware */
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	{ USB_DEVICE(0x0489, 0xe02c), .driver_info = BTUSB_IGNORE },
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	/* Atheros AR5BBU12 with sflash firmware */
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	{ USB_DEVICE(0x0489, 0xe036), .driver_info = BTUSB_ATH3012 },
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	{ USB_DEVICE(0x0489, 0xe03c), .driver_info = BTUSB_ATH3012 },
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	/* QCA ROME chipset */
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	{ USB_DEVICE(0x0cf3, 0x535b), .driver_info = BTUSB_QCA_ROME |
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						     BTUSB_WIDEBAND_SPEECH },
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	{ USB_DEVICE(0x0cf3, 0xe007), .driver_info = BTUSB_QCA_ROME |
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						     BTUSB_WIDEBAND_SPEECH },
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	{ USB_DEVICE(0x0cf3, 0xe009), .driver_info = BTUSB_QCA_ROME |
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						     BTUSB_WIDEBAND_SPEECH },
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	{ USB_DEVICE(0x0cf3, 0xe010), .driver_info = BTUSB_QCA_ROME |
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						     BTUSB_WIDEBAND_SPEECH },
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	{ USB_DEVICE(0x0cf3, 0xe300), .driver_info = BTUSB_QCA_ROME |
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						     BTUSB_WIDEBAND_SPEECH },
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	{ USB_DEVICE(0x0cf3, 0xe301), .driver_info = BTUSB_QCA_ROME |
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						     BTUSB_WIDEBAND_SPEECH },
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	{ USB_DEVICE(0x0cf3, 0xe360), .driver_info = BTUSB_QCA_ROME |
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						     BTUSB_WIDEBAND_SPEECH },
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	{ USB_DEVICE(0x0cf3, 0xe500), .driver_info = BTUSB_QCA_ROME |
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						     BTUSB_WIDEBAND_SPEECH },
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	{ USB_DEVICE(0x0489, 0xe092), .driver_info = BTUSB_QCA_ROME |
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						     BTUSB_WIDEBAND_SPEECH },
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	{ USB_DEVICE(0x0489, 0xe09f), .driver_info = BTUSB_QCA_ROME |
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						     BTUSB_WIDEBAND_SPEECH },
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	{ USB_DEVICE(0x0489, 0xe0a2), .driver_info = BTUSB_QCA_ROME |
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						     BTUSB_WIDEBAND_SPEECH },
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	{ USB_DEVICE(0x04ca, 0x3011), .driver_info = BTUSB_QCA_ROME |
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						     BTUSB_WIDEBAND_SPEECH },
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	{ USB_DEVICE(0x04ca, 0x3015), .driver_info = BTUSB_QCA_ROME |
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						     BTUSB_WIDEBAND_SPEECH },
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	{ USB_DEVICE(0x04ca, 0x3016), .driver_info = BTUSB_QCA_ROME |
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						     BTUSB_WIDEBAND_SPEECH },
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	{ USB_DEVICE(0x04ca, 0x301a), .driver_info = BTUSB_QCA_ROME |
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						     BTUSB_WIDEBAND_SPEECH },
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	{ USB_DEVICE(0x04ca, 0x3021), .driver_info = BTUSB_QCA_ROME |
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						     BTUSB_WIDEBAND_SPEECH },
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	{ USB_DEVICE(0x13d3, 0x3491), .driver_info = BTUSB_QCA_ROME |
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						     BTUSB_WIDEBAND_SPEECH },
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	{ USB_DEVICE(0x13d3, 0x3496), .driver_info = BTUSB_QCA_ROME |
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						     BTUSB_WIDEBAND_SPEECH },
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	{ USB_DEVICE(0x13d3, 0x3501), .driver_info = BTUSB_QCA_ROME |
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						     BTUSB_WIDEBAND_SPEECH },
300

301
	/* QCA WCN6855 chipset */
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	{ USB_DEVICE(0x0489, 0xe0c7), .driver_info = BTUSB_QCA_WCN6855 |
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						     BTUSB_WIDEBAND_SPEECH },
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	{ USB_DEVICE(0x0489, 0xe0c9), .driver_info = BTUSB_QCA_WCN6855 |
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						     BTUSB_WIDEBAND_SPEECH },
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	{ USB_DEVICE(0x0489, 0xe0ca), .driver_info = BTUSB_QCA_WCN6855 |
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						     BTUSB_WIDEBAND_SPEECH },
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	{ USB_DEVICE(0x0489, 0xe0cb), .driver_info = BTUSB_QCA_WCN6855 |
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						     BTUSB_WIDEBAND_SPEECH },
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	{ USB_DEVICE(0x0489, 0xe0cc), .driver_info = BTUSB_QCA_WCN6855 |
311
						     BTUSB_WIDEBAND_SPEECH },
312
	{ USB_DEVICE(0x0489, 0xe0ce), .driver_info = BTUSB_QCA_WCN6855 |
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						     BTUSB_WIDEBAND_SPEECH },
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	{ USB_DEVICE(0x0489, 0xe0d0), .driver_info = BTUSB_QCA_WCN6855 |
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						     BTUSB_WIDEBAND_SPEECH },
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	{ USB_DEVICE(0x0489, 0xe0d6), .driver_info = BTUSB_QCA_WCN6855 |
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						     BTUSB_WIDEBAND_SPEECH },
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	{ USB_DEVICE(0x0489, 0xe0de), .driver_info = BTUSB_QCA_WCN6855 |
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						     BTUSB_WIDEBAND_SPEECH },
320
	{ USB_DEVICE(0x0489, 0xe0df), .driver_info = BTUSB_QCA_WCN6855 |
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						     BTUSB_WIDEBAND_SPEECH },
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	{ USB_DEVICE(0x0489, 0xe0e1), .driver_info = BTUSB_QCA_WCN6855 |
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						     BTUSB_WIDEBAND_SPEECH },
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	{ USB_DEVICE(0x0489, 0xe0e3), .driver_info = BTUSB_QCA_WCN6855 |
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						     BTUSB_WIDEBAND_SPEECH },
326
	{ USB_DEVICE(0x0489, 0xe0ea), .driver_info = BTUSB_QCA_WCN6855 |
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						     BTUSB_WIDEBAND_SPEECH },
328
	{ USB_DEVICE(0x0489, 0xe0ec), .driver_info = BTUSB_QCA_WCN6855 |
329
						     BTUSB_WIDEBAND_SPEECH },
330
	{ USB_DEVICE(0x04ca, 0x3022), .driver_info = BTUSB_QCA_WCN6855 |
331
						     BTUSB_WIDEBAND_SPEECH },
332
	{ USB_DEVICE(0x04ca, 0x3023), .driver_info = BTUSB_QCA_WCN6855 |
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						     BTUSB_WIDEBAND_SPEECH },
334
	{ USB_DEVICE(0x04ca, 0x3024), .driver_info = BTUSB_QCA_WCN6855 |
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						     BTUSB_WIDEBAND_SPEECH },
336
	{ USB_DEVICE(0x04ca, 0x3a22), .driver_info = BTUSB_QCA_WCN6855 |
337
						     BTUSB_WIDEBAND_SPEECH },
338
	{ USB_DEVICE(0x04ca, 0x3a24), .driver_info = BTUSB_QCA_WCN6855 |
339
						     BTUSB_WIDEBAND_SPEECH },
340
	{ USB_DEVICE(0x04ca, 0x3a26), .driver_info = BTUSB_QCA_WCN6855 |
341
						     BTUSB_WIDEBAND_SPEECH },
342
	{ USB_DEVICE(0x04ca, 0x3a27), .driver_info = BTUSB_QCA_WCN6855 |
343
						     BTUSB_WIDEBAND_SPEECH },
344
	{ USB_DEVICE(0x0cf3, 0xe600), .driver_info = BTUSB_QCA_WCN6855 |
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						     BTUSB_WIDEBAND_SPEECH },
346
	{ USB_DEVICE(0x10ab, 0x9108), .driver_info = BTUSB_QCA_WCN6855 |
347
						     BTUSB_WIDEBAND_SPEECH },
348
	{ USB_DEVICE(0x10ab, 0x9109), .driver_info = BTUSB_QCA_WCN6855 |
349
						     BTUSB_WIDEBAND_SPEECH },
350
	{ USB_DEVICE(0x10ab, 0x9208), .driver_info = BTUSB_QCA_WCN6855 |
351
						     BTUSB_WIDEBAND_SPEECH },
352
	{ USB_DEVICE(0x10ab, 0x9209), .driver_info = BTUSB_QCA_WCN6855 |
353
						     BTUSB_WIDEBAND_SPEECH },
354
	{ USB_DEVICE(0x10ab, 0x9308), .driver_info = BTUSB_QCA_WCN6855 |
355
						     BTUSB_WIDEBAND_SPEECH },
356
	{ USB_DEVICE(0x10ab, 0x9309), .driver_info = BTUSB_QCA_WCN6855 |
357
						     BTUSB_WIDEBAND_SPEECH },
358
	{ USB_DEVICE(0x10ab, 0x9408), .driver_info = BTUSB_QCA_WCN6855 |
359
						     BTUSB_WIDEBAND_SPEECH },
360
	{ USB_DEVICE(0x10ab, 0x9409), .driver_info = BTUSB_QCA_WCN6855 |
361
						     BTUSB_WIDEBAND_SPEECH },
362
	{ USB_DEVICE(0x10ab, 0x9508), .driver_info = BTUSB_QCA_WCN6855 |
363
						     BTUSB_WIDEBAND_SPEECH },
364
	{ USB_DEVICE(0x10ab, 0x9509), .driver_info = BTUSB_QCA_WCN6855 |
365
						     BTUSB_WIDEBAND_SPEECH },
366
	{ USB_DEVICE(0x10ab, 0x9608), .driver_info = BTUSB_QCA_WCN6855 |
367
						     BTUSB_WIDEBAND_SPEECH },
368
	{ USB_DEVICE(0x10ab, 0x9609), .driver_info = BTUSB_QCA_WCN6855 |
369
						     BTUSB_WIDEBAND_SPEECH },
370
	{ USB_DEVICE(0x10ab, 0x9f09), .driver_info = BTUSB_QCA_WCN6855 |
371
						     BTUSB_WIDEBAND_SPEECH },
372
	{ USB_DEVICE(0x28de, 0x1401), .driver_info = BTUSB_QCA_WCN6855 |
373
						     BTUSB_WIDEBAND_SPEECH },
374

375
	/* QCA WCN785x chipset */
376
	{ USB_DEVICE(0x0cf3, 0xe700), .driver_info = BTUSB_QCA_WCN6855 |
377
						     BTUSB_WIDEBAND_SPEECH },
378
	{ USB_DEVICE(0x0489, 0xe0fc), .driver_info = BTUSB_QCA_WCN6855 |
379
						     BTUSB_WIDEBAND_SPEECH },
380
	{ USB_DEVICE(0x0489, 0xe0f3), .driver_info = BTUSB_QCA_WCN6855 |
381
						     BTUSB_WIDEBAND_SPEECH },
382
	{ USB_DEVICE(0x0489, 0xe100), .driver_info = BTUSB_QCA_WCN6855 |
383
						     BTUSB_WIDEBAND_SPEECH },
384
	{ USB_DEVICE(0x0489, 0xe103), .driver_info = BTUSB_QCA_WCN6855 |
385
						     BTUSB_WIDEBAND_SPEECH },
386
	{ USB_DEVICE(0x0489, 0xe10a), .driver_info = BTUSB_QCA_WCN6855 |
387
						     BTUSB_WIDEBAND_SPEECH },
388
	{ USB_DEVICE(0x0489, 0xe10d), .driver_info = BTUSB_QCA_WCN6855 |
389
						     BTUSB_WIDEBAND_SPEECH },
390
	{ USB_DEVICE(0x0489, 0xe11b), .driver_info = BTUSB_QCA_WCN6855 |
391
						     BTUSB_WIDEBAND_SPEECH },
392
	{ USB_DEVICE(0x0489, 0xe11c), .driver_info = BTUSB_QCA_WCN6855 |
393
						     BTUSB_WIDEBAND_SPEECH },
394
	{ USB_DEVICE(0x0489, 0xe11f), .driver_info = BTUSB_QCA_WCN6855 |
395
						     BTUSB_WIDEBAND_SPEECH },
396
	{ USB_DEVICE(0x0489, 0xe141), .driver_info = BTUSB_QCA_WCN6855 |
397
						     BTUSB_WIDEBAND_SPEECH },
398
	{ USB_DEVICE(0x0489, 0xe14a), .driver_info = BTUSB_QCA_WCN6855 |
399
						     BTUSB_WIDEBAND_SPEECH },
400
	{ USB_DEVICE(0x0489, 0xe14b), .driver_info = BTUSB_QCA_WCN6855 |
401
						     BTUSB_WIDEBAND_SPEECH },
402
	{ USB_DEVICE(0x0489, 0xe14d), .driver_info = BTUSB_QCA_WCN6855 |
403
						     BTUSB_WIDEBAND_SPEECH },
404
	{ USB_DEVICE(0x13d3, 0x3623), .driver_info = BTUSB_QCA_WCN6855 |
405
						     BTUSB_WIDEBAND_SPEECH },
406
	{ USB_DEVICE(0x13d3, 0x3624), .driver_info = BTUSB_QCA_WCN6855 |
407
						     BTUSB_WIDEBAND_SPEECH },
408
	{ USB_DEVICE(0x2c7c, 0x0130), .driver_info = BTUSB_QCA_WCN6855 |
409
						     BTUSB_WIDEBAND_SPEECH },
410
	{ USB_DEVICE(0x2c7c, 0x0131), .driver_info = BTUSB_QCA_WCN6855 |
411
						     BTUSB_WIDEBAND_SPEECH },
412
	{ USB_DEVICE(0x2c7c, 0x0132), .driver_info = BTUSB_QCA_WCN6855 |
413
						     BTUSB_WIDEBAND_SPEECH },
414

415
	/* Broadcom BCM2035 */
416
	{ USB_DEVICE(0x0a5c, 0x2009), .driver_info = BTUSB_BCM92035 },
417
	{ USB_DEVICE(0x0a5c, 0x200a), .driver_info = BTUSB_WRONG_SCO_MTU },
418
	{ USB_DEVICE(0x0a5c, 0x2035), .driver_info = BTUSB_WRONG_SCO_MTU },
419

420
	/* Broadcom BCM2045 */
421
	{ USB_DEVICE(0x0a5c, 0x2039), .driver_info = BTUSB_WRONG_SCO_MTU },
422
	{ USB_DEVICE(0x0a5c, 0x2101), .driver_info = BTUSB_WRONG_SCO_MTU },
423

424
	/* IBM/Lenovo ThinkPad with Broadcom chip */
425
	{ USB_DEVICE(0x0a5c, 0x201e), .driver_info = BTUSB_WRONG_SCO_MTU },
426
	{ USB_DEVICE(0x0a5c, 0x2110), .driver_info = BTUSB_WRONG_SCO_MTU },
427

428
	/* HP laptop with Broadcom chip */
429
	{ USB_DEVICE(0x03f0, 0x171d), .driver_info = BTUSB_WRONG_SCO_MTU },
430

431
	/* Dell laptop with Broadcom chip */
432
	{ USB_DEVICE(0x413c, 0x8126), .driver_info = BTUSB_WRONG_SCO_MTU },
433

434
	/* Dell Wireless 370 and 410 devices */
435
	{ USB_DEVICE(0x413c, 0x8152), .driver_info = BTUSB_WRONG_SCO_MTU },
436
	{ USB_DEVICE(0x413c, 0x8156), .driver_info = BTUSB_WRONG_SCO_MTU },
437

438
	/* Belkin F8T012 and F8T013 devices */
439
	{ USB_DEVICE(0x050d, 0x0012), .driver_info = BTUSB_WRONG_SCO_MTU },
440
	{ USB_DEVICE(0x050d, 0x0013), .driver_info = BTUSB_WRONG_SCO_MTU },
441

442
	/* Asus WL-BTD202 device */
443
	{ USB_DEVICE(0x0b05, 0x1715), .driver_info = BTUSB_WRONG_SCO_MTU },
444

445
	/* Kensington Bluetooth USB adapter */
446
	{ USB_DEVICE(0x047d, 0x105e), .driver_info = BTUSB_WRONG_SCO_MTU },
447

448
	/* RTX Telecom based adapters with buggy SCO support */
449
	{ USB_DEVICE(0x0400, 0x0807), .driver_info = BTUSB_BROKEN_ISOC },
450
	{ USB_DEVICE(0x0400, 0x080a), .driver_info = BTUSB_BROKEN_ISOC },
451

452
	/* CONWISE Technology based adapters with buggy SCO support */
453
	{ USB_DEVICE(0x0e5e, 0x6622),
454
	  .driver_info = BTUSB_BROKEN_ISOC | BTUSB_CW6622},
455

456
	/* Roper Class 1 Bluetooth Dongle (Silicon Wave based) */
457
	{ USB_DEVICE(0x1310, 0x0001), .driver_info = BTUSB_SWAVE },
458

459
	/* Digianswer devices */
460
	{ USB_DEVICE(0x08fd, 0x0001), .driver_info = BTUSB_DIGIANSWER },
461
	{ USB_DEVICE(0x08fd, 0x0002), .driver_info = BTUSB_IGNORE },
462

463
	/* CSR BlueCore Bluetooth Sniffer */
464
	{ USB_DEVICE(0x0a12, 0x0002),
465
	  .driver_info = BTUSB_SNIFFER | BTUSB_BROKEN_ISOC },
466

467
	/* Frontline ComProbe Bluetooth Sniffer */
468
	{ USB_DEVICE(0x16d3, 0x0002),
469
	  .driver_info = BTUSB_SNIFFER | BTUSB_BROKEN_ISOC },
470

471
	/* Marvell Bluetooth devices */
472
	{ USB_DEVICE(0x1286, 0x2044), .driver_info = BTUSB_MARVELL },
473
	{ USB_DEVICE(0x1286, 0x2046), .driver_info = BTUSB_MARVELL },
474
	{ USB_DEVICE(0x1286, 0x204e), .driver_info = BTUSB_MARVELL },
475

476
	/* Intel Bluetooth devices */
477
	{ USB_DEVICE(0x8087, 0x0025), .driver_info = BTUSB_INTEL_COMBINED },
478
	{ USB_DEVICE(0x8087, 0x0026), .driver_info = BTUSB_INTEL_COMBINED },
479
	{ USB_DEVICE(0x8087, 0x0029), .driver_info = BTUSB_INTEL_COMBINED },
480
	{ USB_DEVICE(0x8087, 0x0032), .driver_info = BTUSB_INTEL_COMBINED },
481
	{ USB_DEVICE(0x8087, 0x0033), .driver_info = BTUSB_INTEL_COMBINED },
482
	{ USB_DEVICE(0x8087, 0x0035), .driver_info = BTUSB_INTEL_COMBINED },
483
	{ USB_DEVICE(0x8087, 0x0036), .driver_info = BTUSB_INTEL_COMBINED },
484
	{ USB_DEVICE(0x8087, 0x0037), .driver_info = BTUSB_INTEL_COMBINED },
485
	{ USB_DEVICE(0x8087, 0x0038), .driver_info = BTUSB_INTEL_COMBINED },
486
	{ USB_DEVICE(0x8087, 0x0039), .driver_info = BTUSB_INTEL_COMBINED },
487
	{ USB_DEVICE(0x8087, 0x07da), .driver_info = BTUSB_CSR },
488
	{ USB_DEVICE(0x8087, 0x07dc), .driver_info = BTUSB_INTEL_COMBINED |
489
						     BTUSB_INTEL_NO_WBS_SUPPORT |
490
						     BTUSB_INTEL_BROKEN_INITIAL_NCMD |
491
						     BTUSB_INTEL_BROKEN_SHUTDOWN_LED },
492
	{ USB_DEVICE(0x8087, 0x0a2a), .driver_info = BTUSB_INTEL_COMBINED |
493
						     BTUSB_INTEL_NO_WBS_SUPPORT |
494
						     BTUSB_INTEL_BROKEN_SHUTDOWN_LED },
495
	{ USB_DEVICE(0x8087, 0x0a2b), .driver_info = BTUSB_INTEL_COMBINED },
496
	{ USB_DEVICE(0x8087, 0x0aa7), .driver_info = BTUSB_INTEL_COMBINED |
497
						     BTUSB_INTEL_BROKEN_SHUTDOWN_LED },
498
	{ USB_DEVICE(0x8087, 0x0aaa), .driver_info = BTUSB_INTEL_COMBINED },
499

500
	/* Other Intel Bluetooth devices */
501
	{ USB_VENDOR_AND_INTERFACE_INFO(0x8087, 0xe0, 0x01, 0x01),
502
	  .driver_info = BTUSB_IGNORE },
503

504
	/* Realtek 8821CE Bluetooth devices */
505
	{ USB_DEVICE(0x13d3, 0x3529), .driver_info = BTUSB_REALTEK |
506
						     BTUSB_WIDEBAND_SPEECH },
507
	{ USB_DEVICE(0x13d3, 0x3533), .driver_info = BTUSB_REALTEK |
508
						     BTUSB_WIDEBAND_SPEECH },
509

510
	/* Realtek 8822CE Bluetooth devices */
511
	{ USB_DEVICE(0x0bda, 0xb00c), .driver_info = BTUSB_REALTEK |
512
						     BTUSB_WIDEBAND_SPEECH },
513
	{ USB_DEVICE(0x0bda, 0xc822), .driver_info = BTUSB_REALTEK |
514
						     BTUSB_WIDEBAND_SPEECH },
515

516
	/* Realtek 8822CU Bluetooth devices */
517
	{ USB_DEVICE(0x13d3, 0x3549), .driver_info = BTUSB_REALTEK |
518
						     BTUSB_WIDEBAND_SPEECH },
519

520
	/* Realtek 8851BE Bluetooth devices */
521
	{ USB_DEVICE(0x0bda, 0xb850), .driver_info = BTUSB_REALTEK },
522
	{ USB_DEVICE(0x13d3, 0x3600), .driver_info = BTUSB_REALTEK },
523
	{ USB_DEVICE(0x13d3, 0x3601), .driver_info = BTUSB_REALTEK },
524

525
	/* Realtek 8851BU Bluetooth devices */
526
	{ USB_DEVICE(0x3625, 0x010b), .driver_info = BTUSB_REALTEK |
527
						     BTUSB_WIDEBAND_SPEECH },
528
	{ USB_DEVICE(0x2001, 0x332a), .driver_info = BTUSB_REALTEK |
529
						     BTUSB_WIDEBAND_SPEECH },
530

531
	/* Realtek 8852AE Bluetooth devices */
532
	{ USB_DEVICE(0x0bda, 0x2852), .driver_info = BTUSB_REALTEK |
533
						     BTUSB_WIDEBAND_SPEECH },
534
	{ USB_DEVICE(0x0bda, 0xc852), .driver_info = BTUSB_REALTEK |
535
						     BTUSB_WIDEBAND_SPEECH },
536
	{ USB_DEVICE(0x0bda, 0x385a), .driver_info = BTUSB_REALTEK |
537
						     BTUSB_WIDEBAND_SPEECH },
538
	{ USB_DEVICE(0x0bda, 0x4852), .driver_info = BTUSB_REALTEK |
539
						     BTUSB_WIDEBAND_SPEECH },
540
	{ USB_DEVICE(0x04c5, 0x165c), .driver_info = BTUSB_REALTEK |
541
						     BTUSB_WIDEBAND_SPEECH },
542
	{ USB_DEVICE(0x04ca, 0x4006), .driver_info = BTUSB_REALTEK |
543
						     BTUSB_WIDEBAND_SPEECH },
544
	{ USB_DEVICE(0x0cb8, 0xc549), .driver_info = BTUSB_REALTEK |
545
						     BTUSB_WIDEBAND_SPEECH },
546

547
	/* Realtek 8852CE Bluetooth devices */
548
	{ USB_DEVICE(0x04ca, 0x4007), .driver_info = BTUSB_REALTEK |
549
						     BTUSB_WIDEBAND_SPEECH },
550
	{ USB_DEVICE(0x04c5, 0x1675), .driver_info = BTUSB_REALTEK |
551
						     BTUSB_WIDEBAND_SPEECH },
552
	{ USB_DEVICE(0x0cb8, 0xc558), .driver_info = BTUSB_REALTEK |
553
						     BTUSB_WIDEBAND_SPEECH },
554
	{ USB_DEVICE(0x13d3, 0x3587), .driver_info = BTUSB_REALTEK |
555
						     BTUSB_WIDEBAND_SPEECH },
556
	{ USB_DEVICE(0x13d3, 0x3586), .driver_info = BTUSB_REALTEK |
557
						     BTUSB_WIDEBAND_SPEECH },
558
	{ USB_DEVICE(0x13d3, 0x3592), .driver_info = BTUSB_REALTEK |
559
						     BTUSB_WIDEBAND_SPEECH },
560
	{ USB_DEVICE(0x0489, 0xe122), .driver_info = BTUSB_REALTEK |
561
						     BTUSB_WIDEBAND_SPEECH },
562

563
	/* Realtek 8852BE Bluetooth devices */
564
	{ USB_DEVICE(0x0cb8, 0xc559), .driver_info = BTUSB_REALTEK |
565
						     BTUSB_WIDEBAND_SPEECH },
566
	{ USB_DEVICE(0x0bda, 0x4853), .driver_info = BTUSB_REALTEK |
567
						     BTUSB_WIDEBAND_SPEECH },
568
	{ USB_DEVICE(0x0bda, 0x887b), .driver_info = BTUSB_REALTEK |
569
						     BTUSB_WIDEBAND_SPEECH },
570
	{ USB_DEVICE(0x0bda, 0xb85b), .driver_info = BTUSB_REALTEK |
571
						     BTUSB_WIDEBAND_SPEECH },
572
	{ USB_DEVICE(0x13d3, 0x3570), .driver_info = BTUSB_REALTEK |
573
						     BTUSB_WIDEBAND_SPEECH },
574
	{ USB_DEVICE(0x13d3, 0x3571), .driver_info = BTUSB_REALTEK |
575
						     BTUSB_WIDEBAND_SPEECH },
576
	{ USB_DEVICE(0x13d3, 0x3572), .driver_info = BTUSB_REALTEK |
577
						     BTUSB_WIDEBAND_SPEECH },
578
	{ USB_DEVICE(0x13d3, 0x3591), .driver_info = BTUSB_REALTEK |
579
						     BTUSB_WIDEBAND_SPEECH },
580
	{ USB_DEVICE(0x13d3, 0x3618), .driver_info = BTUSB_REALTEK |
581
						     BTUSB_WIDEBAND_SPEECH },
582
	{ USB_DEVICE(0x0489, 0xe123), .driver_info = BTUSB_REALTEK |
583
						     BTUSB_WIDEBAND_SPEECH },
584
	{ USB_DEVICE(0x0489, 0xe125), .driver_info = BTUSB_REALTEK |
585
						     BTUSB_WIDEBAND_SPEECH },
586

587
	/* Realtek 8852BT/8852BE-VT Bluetooth devices */
588
	{ USB_DEVICE(0x0bda, 0x8520), .driver_info = BTUSB_REALTEK |
589
						     BTUSB_WIDEBAND_SPEECH },
590
	{ USB_DEVICE(0x0489, 0xe12f), .driver_info = BTUSB_REALTEK |
591
						     BTUSB_WIDEBAND_SPEECH },
592
	{ USB_DEVICE(0x13d3, 0x3618), .driver_info = BTUSB_REALTEK |
593
						     BTUSB_WIDEBAND_SPEECH },
594
	{ USB_DEVICE(0x13d3, 0x3619), .driver_info = BTUSB_REALTEK |
595
						     BTUSB_WIDEBAND_SPEECH },
596

597
	/* Realtek 8922AE Bluetooth devices */
598
	{ USB_DEVICE(0x0bda, 0x8922), .driver_info = BTUSB_REALTEK |
599
						     BTUSB_WIDEBAND_SPEECH },
600
	{ USB_DEVICE(0x13d3, 0x3617), .driver_info = BTUSB_REALTEK |
601
						     BTUSB_WIDEBAND_SPEECH },
602
	{ USB_DEVICE(0x13d3, 0x3616), .driver_info = BTUSB_REALTEK |
603
						     BTUSB_WIDEBAND_SPEECH },
604
	{ USB_DEVICE(0x0489, 0xe130), .driver_info = BTUSB_REALTEK |
605
						     BTUSB_WIDEBAND_SPEECH },
606

607
	/* Realtek Bluetooth devices */
608
	{ USB_VENDOR_AND_INTERFACE_INFO(0x0bda, 0xe0, 0x01, 0x01),
609
	  .driver_info = BTUSB_REALTEK },
610

611
	/* MediaTek Bluetooth devices */
612
	{ USB_VENDOR_AND_INTERFACE_INFO(0x0e8d, 0xe0, 0x01, 0x01),
613
	  .driver_info = BTUSB_MEDIATEK |
614
			 BTUSB_WIDEBAND_SPEECH },
615

616
	/* Additional MediaTek MT7615E Bluetooth devices */
617
	{ USB_DEVICE(0x13d3, 0x3560), .driver_info = BTUSB_MEDIATEK},
618

619
	/* Additional MediaTek MT7663 Bluetooth devices */
620
	{ USB_DEVICE(0x043e, 0x310c), .driver_info = BTUSB_MEDIATEK |
621
						     BTUSB_WIDEBAND_SPEECH },
622
	{ USB_DEVICE(0x04ca, 0x3801), .driver_info = BTUSB_MEDIATEK |
623
						     BTUSB_WIDEBAND_SPEECH },
624

625
	/* Additional MediaTek MT7668 Bluetooth devices */
626
	{ USB_DEVICE(0x043e, 0x3109), .driver_info = BTUSB_MEDIATEK |
627
						     BTUSB_WIDEBAND_SPEECH },
628

629
	/* Additional MediaTek MT7920 Bluetooth devices */
630
	{ USB_DEVICE(0x0489, 0xe134), .driver_info = BTUSB_MEDIATEK |
631
						     BTUSB_WIDEBAND_SPEECH },
632
	{ USB_DEVICE(0x0489, 0xe135), .driver_info = BTUSB_MEDIATEK |
633
						     BTUSB_WIDEBAND_SPEECH },
634
	{ USB_DEVICE(0x13d3, 0x3620), .driver_info = BTUSB_MEDIATEK |
635
						     BTUSB_WIDEBAND_SPEECH },
636
	{ USB_DEVICE(0x13d3, 0x3621), .driver_info = BTUSB_MEDIATEK |
637
						     BTUSB_WIDEBAND_SPEECH },
638
	{ USB_DEVICE(0x13d3, 0x3622), .driver_info = BTUSB_MEDIATEK |
639
						     BTUSB_WIDEBAND_SPEECH },
640

641
	/* Additional MediaTek MT7921 Bluetooth devices */
642
	{ USB_DEVICE(0x0489, 0xe0c8), .driver_info = BTUSB_MEDIATEK |
643
						     BTUSB_WIDEBAND_SPEECH },
644
	{ USB_DEVICE(0x0489, 0xe0cd), .driver_info = BTUSB_MEDIATEK |
645
						     BTUSB_WIDEBAND_SPEECH },
646
	{ USB_DEVICE(0x0489, 0xe0e0), .driver_info = BTUSB_MEDIATEK |
647
						     BTUSB_WIDEBAND_SPEECH },
648
	{ USB_DEVICE(0x0489, 0xe0f2), .driver_info = BTUSB_MEDIATEK |
649
						     BTUSB_WIDEBAND_SPEECH },
650
	{ USB_DEVICE(0x04ca, 0x3802), .driver_info = BTUSB_MEDIATEK |
651
						     BTUSB_WIDEBAND_SPEECH },
652
	{ USB_DEVICE(0x0e8d, 0x0608), .driver_info = BTUSB_MEDIATEK |
653
						     BTUSB_WIDEBAND_SPEECH },
654
	{ USB_DEVICE(0x13d3, 0x3563), .driver_info = BTUSB_MEDIATEK |
655
						     BTUSB_WIDEBAND_SPEECH },
656
	{ USB_DEVICE(0x13d3, 0x3564), .driver_info = BTUSB_MEDIATEK |
657
						     BTUSB_WIDEBAND_SPEECH },
658
	{ USB_DEVICE(0x13d3, 0x3567), .driver_info = BTUSB_MEDIATEK |
659
						     BTUSB_WIDEBAND_SPEECH },
660
	{ USB_DEVICE(0x13d3, 0x3576), .driver_info = BTUSB_MEDIATEK |
661
						     BTUSB_WIDEBAND_SPEECH },
662
	{ USB_DEVICE(0x13d3, 0x3578), .driver_info = BTUSB_MEDIATEK |
663
						     BTUSB_WIDEBAND_SPEECH },
664
	{ USB_DEVICE(0x13d3, 0x3583), .driver_info = BTUSB_MEDIATEK |
665
						     BTUSB_WIDEBAND_SPEECH },
666
	{ USB_DEVICE(0x13d3, 0x3606), .driver_info = BTUSB_MEDIATEK |
667
						     BTUSB_WIDEBAND_SPEECH },
668

669
	/* MediaTek MT7922 Bluetooth devices */
670
	{ USB_DEVICE(0x13d3, 0x3585), .driver_info = BTUSB_MEDIATEK |
671
						     BTUSB_WIDEBAND_SPEECH },
672
	{ USB_DEVICE(0x13d3, 0x3610), .driver_info = BTUSB_MEDIATEK |
673
						     BTUSB_WIDEBAND_SPEECH },
674

675
	/* MediaTek MT7922A Bluetooth devices */
676
	{ USB_DEVICE(0x0489, 0xe0d8), .driver_info = BTUSB_MEDIATEK |
677
						     BTUSB_WIDEBAND_SPEECH },
678
	{ USB_DEVICE(0x0489, 0xe0d9), .driver_info = BTUSB_MEDIATEK |
679
						     BTUSB_WIDEBAND_SPEECH },
680
	{ USB_DEVICE(0x0489, 0xe0e2), .driver_info = BTUSB_MEDIATEK |
681
						     BTUSB_WIDEBAND_SPEECH },
682
	{ USB_DEVICE(0x0489, 0xe0e4), .driver_info = BTUSB_MEDIATEK |
683
						     BTUSB_WIDEBAND_SPEECH },
684
	{ USB_DEVICE(0x0489, 0xe0f1), .driver_info = BTUSB_MEDIATEK |
685
						     BTUSB_WIDEBAND_SPEECH },
686
	{ USB_DEVICE(0x0489, 0xe0f2), .driver_info = BTUSB_MEDIATEK |
687
						     BTUSB_WIDEBAND_SPEECH },
688
	{ USB_DEVICE(0x0489, 0xe0f5), .driver_info = BTUSB_MEDIATEK |
689
						     BTUSB_WIDEBAND_SPEECH },
690
	{ USB_DEVICE(0x0489, 0xe0f6), .driver_info = BTUSB_MEDIATEK |
691
						     BTUSB_WIDEBAND_SPEECH },
692
	{ USB_DEVICE(0x0489, 0xe102), .driver_info = BTUSB_MEDIATEK |
693
						     BTUSB_WIDEBAND_SPEECH },
694
	{ USB_DEVICE(0x0489, 0xe152), .driver_info = BTUSB_MEDIATEK |
695
						     BTUSB_WIDEBAND_SPEECH },
696
	{ USB_DEVICE(0x0489, 0xe153), .driver_info = BTUSB_MEDIATEK |
697
						     BTUSB_WIDEBAND_SPEECH },
698
	{ USB_DEVICE(0x0489, 0xe170), .driver_info = BTUSB_MEDIATEK |
699
						     BTUSB_WIDEBAND_SPEECH },
700
	{ USB_DEVICE(0x04ca, 0x3804), .driver_info = BTUSB_MEDIATEK |
701
						     BTUSB_WIDEBAND_SPEECH },
702
	{ USB_DEVICE(0x04ca, 0x38e4), .driver_info = BTUSB_MEDIATEK |
703
						     BTUSB_WIDEBAND_SPEECH },
704
	{ USB_DEVICE(0x13d3, 0x3568), .driver_info = BTUSB_MEDIATEK |
705
						     BTUSB_WIDEBAND_SPEECH },
706
	{ USB_DEVICE(0x13d3, 0x3584), .driver_info = BTUSB_MEDIATEK |
707
						     BTUSB_WIDEBAND_SPEECH },
708
	{ USB_DEVICE(0x13d3, 0x3605), .driver_info = BTUSB_MEDIATEK |
709
						     BTUSB_WIDEBAND_SPEECH },
710
	{ USB_DEVICE(0x13d3, 0x3607), .driver_info = BTUSB_MEDIATEK |
711
						     BTUSB_WIDEBAND_SPEECH },
712
	{ USB_DEVICE(0x13d3, 0x3614), .driver_info = BTUSB_MEDIATEK |
713
						     BTUSB_WIDEBAND_SPEECH },
714
	{ USB_DEVICE(0x13d3, 0x3615), .driver_info = BTUSB_MEDIATEK |
715
						     BTUSB_WIDEBAND_SPEECH },
716
	{ USB_DEVICE(0x13d3, 0x3633), .driver_info = BTUSB_MEDIATEK |
717
						     BTUSB_WIDEBAND_SPEECH },
718
	{ USB_DEVICE(0x35f5, 0x7922), .driver_info = BTUSB_MEDIATEK |
719
						     BTUSB_WIDEBAND_SPEECH },
720

721
	/* Additional MediaTek MT7925 Bluetooth devices */
722
	{ USB_DEVICE(0x0489, 0xe111), .driver_info = BTUSB_MEDIATEK |
723
						     BTUSB_WIDEBAND_SPEECH },
724
	{ USB_DEVICE(0x0489, 0xe113), .driver_info = BTUSB_MEDIATEK |
725
						     BTUSB_WIDEBAND_SPEECH },
726
	{ USB_DEVICE(0x0489, 0xe118), .driver_info = BTUSB_MEDIATEK |
727
						     BTUSB_WIDEBAND_SPEECH },
728
	{ USB_DEVICE(0x0489, 0xe11e), .driver_info = BTUSB_MEDIATEK |
729
						     BTUSB_WIDEBAND_SPEECH },
730
	{ USB_DEVICE(0x0489, 0xe124), .driver_info = BTUSB_MEDIATEK |
731
						     BTUSB_WIDEBAND_SPEECH },
732
	{ USB_DEVICE(0x0489, 0xe139), .driver_info = BTUSB_MEDIATEK |
733
						     BTUSB_WIDEBAND_SPEECH },
734
	{ USB_DEVICE(0x0489, 0xe14e), .driver_info = BTUSB_MEDIATEK |
735
						     BTUSB_WIDEBAND_SPEECH },
736
	{ USB_DEVICE(0x0489, 0xe14f), .driver_info = BTUSB_MEDIATEK |
737
						     BTUSB_WIDEBAND_SPEECH },
738
	{ USB_DEVICE(0x0489, 0xe150), .driver_info = BTUSB_MEDIATEK |
739
						     BTUSB_WIDEBAND_SPEECH },
740
	{ USB_DEVICE(0x0489, 0xe151), .driver_info = BTUSB_MEDIATEK |
741
						     BTUSB_WIDEBAND_SPEECH },
742
	{ USB_DEVICE(0x13d3, 0x3602), .driver_info = BTUSB_MEDIATEK |
743
						     BTUSB_WIDEBAND_SPEECH },
744
	{ USB_DEVICE(0x13d3, 0x3603), .driver_info = BTUSB_MEDIATEK |
745
						     BTUSB_WIDEBAND_SPEECH },
746
	{ USB_DEVICE(0x13d3, 0x3604), .driver_info = BTUSB_MEDIATEK |
747
						     BTUSB_WIDEBAND_SPEECH },
748
	{ USB_DEVICE(0x13d3, 0x3608), .driver_info = BTUSB_MEDIATEK |
749
						     BTUSB_WIDEBAND_SPEECH },
750
	{ USB_DEVICE(0x13d3, 0x3613), .driver_info = BTUSB_MEDIATEK |
751
						     BTUSB_WIDEBAND_SPEECH },
752
	{ USB_DEVICE(0x13d3, 0x3627), .driver_info = BTUSB_MEDIATEK |
753
						     BTUSB_WIDEBAND_SPEECH },
754
	{ USB_DEVICE(0x13d3, 0x3628), .driver_info = BTUSB_MEDIATEK |
755
						     BTUSB_WIDEBAND_SPEECH },
756
	{ USB_DEVICE(0x13d3, 0x3630), .driver_info = BTUSB_MEDIATEK |
757
						     BTUSB_WIDEBAND_SPEECH },
758
	{ USB_DEVICE(0x2c7c, 0x7009), .driver_info = BTUSB_MEDIATEK |
759
						     BTUSB_WIDEBAND_SPEECH },
760

761
	/* Additional Realtek 8723AE Bluetooth devices */
762
	{ USB_DEVICE(0x0930, 0x021d), .driver_info = BTUSB_REALTEK },
763
	{ USB_DEVICE(0x13d3, 0x3394), .driver_info = BTUSB_REALTEK },
764

765
	/* Additional Realtek 8723BE Bluetooth devices */
766
	{ USB_DEVICE(0x0489, 0xe085), .driver_info = BTUSB_REALTEK },
767
	{ USB_DEVICE(0x0489, 0xe08b), .driver_info = BTUSB_REALTEK },
768
	{ USB_DEVICE(0x04f2, 0xb49f), .driver_info = BTUSB_REALTEK },
769
	{ USB_DEVICE(0x13d3, 0x3410), .driver_info = BTUSB_REALTEK },
770
	{ USB_DEVICE(0x13d3, 0x3416), .driver_info = BTUSB_REALTEK },
771
	{ USB_DEVICE(0x13d3, 0x3459), .driver_info = BTUSB_REALTEK },
772
	{ USB_DEVICE(0x13d3, 0x3494), .driver_info = BTUSB_REALTEK },
773

774
	/* Additional Realtek 8723BU Bluetooth devices */
775
	{ USB_DEVICE(0x7392, 0xa611), .driver_info = BTUSB_REALTEK },
776

777
	/* Additional Realtek 8723DE Bluetooth devices */
778
	{ USB_DEVICE(0x0bda, 0xb009), .driver_info = BTUSB_REALTEK },
779
	{ USB_DEVICE(0x2ff8, 0xb011), .driver_info = BTUSB_REALTEK },
780

781
	/* Additional Realtek 8761BUV Bluetooth devices */
782
	{ USB_DEVICE(0x2357, 0x0604), .driver_info = BTUSB_REALTEK |
783
						     BTUSB_WIDEBAND_SPEECH },
784
	{ USB_DEVICE(0x0b05, 0x190e), .driver_info = BTUSB_REALTEK |
785
	  					     BTUSB_WIDEBAND_SPEECH },
786
	{ USB_DEVICE(0x2550, 0x8761), .driver_info = BTUSB_REALTEK |
787
						     BTUSB_WIDEBAND_SPEECH },
788
	{ USB_DEVICE(0x0bda, 0x8771), .driver_info = BTUSB_REALTEK |
789
						     BTUSB_WIDEBAND_SPEECH },
790
	{ USB_DEVICE(0x6655, 0x8771), .driver_info = BTUSB_REALTEK |
791
						     BTUSB_WIDEBAND_SPEECH },
792
	{ USB_DEVICE(0x7392, 0xc611), .driver_info = BTUSB_REALTEK |
793
						     BTUSB_WIDEBAND_SPEECH },
794
	{ USB_DEVICE(0x2b89, 0x8761), .driver_info = BTUSB_REALTEK |
795
						     BTUSB_WIDEBAND_SPEECH },
796
	{ USB_DEVICE(0x2b89, 0x6275), .driver_info = BTUSB_REALTEK |
797
						     BTUSB_WIDEBAND_SPEECH },
798

799
	/* Additional Realtek 8821AE Bluetooth devices */
800
	{ USB_DEVICE(0x0b05, 0x17dc), .driver_info = BTUSB_REALTEK },
801
	{ USB_DEVICE(0x13d3, 0x3414), .driver_info = BTUSB_REALTEK },
802
	{ USB_DEVICE(0x13d3, 0x3458), .driver_info = BTUSB_REALTEK },
803
	{ USB_DEVICE(0x13d3, 0x3461), .driver_info = BTUSB_REALTEK },
804
	{ USB_DEVICE(0x13d3, 0x3462), .driver_info = BTUSB_REALTEK },
805

806
	/* Additional Realtek 8822BE Bluetooth devices */
807
	{ USB_DEVICE(0x13d3, 0x3526), .driver_info = BTUSB_REALTEK },
808
	{ USB_DEVICE(0x0b05, 0x185c), .driver_info = BTUSB_REALTEK },
809

810
	/* Additional Realtek 8822CE Bluetooth devices */
811
	{ USB_DEVICE(0x04ca, 0x4005), .driver_info = BTUSB_REALTEK |
812
						     BTUSB_WIDEBAND_SPEECH },
813
	{ USB_DEVICE(0x04c5, 0x161f), .driver_info = BTUSB_REALTEK |
814
						     BTUSB_WIDEBAND_SPEECH },
815
	{ USB_DEVICE(0x0b05, 0x18ef), .driver_info = BTUSB_REALTEK |
816
						     BTUSB_WIDEBAND_SPEECH },
817
	{ USB_DEVICE(0x13d3, 0x3548), .driver_info = BTUSB_REALTEK |
818
						     BTUSB_WIDEBAND_SPEECH },
819
	{ USB_DEVICE(0x13d3, 0x3549), .driver_info = BTUSB_REALTEK |
820
						     BTUSB_WIDEBAND_SPEECH },
821
	{ USB_DEVICE(0x13d3, 0x3553), .driver_info = BTUSB_REALTEK |
822
						     BTUSB_WIDEBAND_SPEECH },
823
	{ USB_DEVICE(0x13d3, 0x3555), .driver_info = BTUSB_REALTEK |
824
						     BTUSB_WIDEBAND_SPEECH },
825
	{ USB_DEVICE(0x2ff8, 0x3051), .driver_info = BTUSB_REALTEK |
826
						     BTUSB_WIDEBAND_SPEECH },
827
	{ USB_DEVICE(0x1358, 0xc123), .driver_info = BTUSB_REALTEK |
828
						     BTUSB_WIDEBAND_SPEECH },
829
	{ USB_DEVICE(0x0bda, 0xc123), .driver_info = BTUSB_REALTEK |
830
						     BTUSB_WIDEBAND_SPEECH },
831
	{ USB_DEVICE(0x0cb5, 0xc547), .driver_info = BTUSB_REALTEK |
832
						     BTUSB_WIDEBAND_SPEECH },
833

834
	/* Barrot Technology Bluetooth devices */
835
	{ USB_DEVICE(0x33fa, 0x0010), .driver_info = BTUSB_BARROT },
836
	{ USB_DEVICE(0x33fa, 0x0012), .driver_info = BTUSB_BARROT },
837

838
	/* Actions Semiconductor ATS2851 based devices */
839
	{ USB_DEVICE(0x10d7, 0xb012), .driver_info = BTUSB_ACTIONS_SEMI },
840

841
	/* Silicon Wave based devices */
842
	{ USB_DEVICE(0x0c10, 0x0000), .driver_info = BTUSB_SWAVE },
843

844
	{ }	/* Terminating entry */
845
};
846

847
/* The Bluetooth USB module build into some devices needs to be reset on resume,
848
 * this is a problem with the platform (likely shutting off all power) not with
849
 * the module itself. So we use a DMI list to match known broken platforms.
850
 */
851
static const struct dmi_system_id btusb_needs_reset_resume_table[] = {
852
	{
853
		/* Dell OptiPlex 3060 (QCA ROME device 0cf3:e007) */
854
		.matches = {
855
			DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
856
			DMI_MATCH(DMI_PRODUCT_NAME, "OptiPlex 3060"),
857
		},
858
	},
859
	{
860
		/* Dell XPS 9360 (QCA ROME device 0cf3:e300) */
861
		.matches = {
862
			DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
863
			DMI_MATCH(DMI_PRODUCT_NAME, "XPS 13 9360"),
864
		},
865
	},
866
	{
867
		/* Dell Inspiron 5565 (QCA ROME device 0cf3:e009) */
868
		.matches = {
869
			DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
870
			DMI_MATCH(DMI_PRODUCT_NAME, "Inspiron 5565"),
871
		},
872
	},
873
	{}
874
};
875

876
struct qca_dump_info {
877
	/* fields for dump collection */
878
	u16 id_vendor;
879
	u16 id_product;
880
	u32 fw_version;
881
	u32 controller_id;
882
	u32 ram_dump_size;
883
	u16 ram_dump_seqno;
884
};
885

886
#define BTUSB_MAX_ISOC_FRAMES	10
887

888
#define BTUSB_INTR_RUNNING	0
889
#define BTUSB_BULK_RUNNING	1
890
#define BTUSB_ISOC_RUNNING	2
891
#define BTUSB_SUSPENDING	3
892
#define BTUSB_DID_ISO_RESUME	4
893
#define BTUSB_BOOTLOADER	5
894
#define BTUSB_DOWNLOADING	6
895
#define BTUSB_FIRMWARE_LOADED	7
896
#define BTUSB_FIRMWARE_FAILED	8
897
#define BTUSB_BOOTING		9
898
#define BTUSB_DIAG_RUNNING	10
899
#define BTUSB_OOB_WAKE_ENABLED	11
900
#define BTUSB_HW_RESET_ACTIVE	12
901
#define BTUSB_TX_WAIT_VND_EVT	13
902
#define BTUSB_WAKEUP_AUTOSUSPEND	14
903
#define BTUSB_USE_ALT3_FOR_WBS	15
904
#define BTUSB_ALT6_CONTINUOUS_TX	16
905
#define BTUSB_HW_SSR_ACTIVE	17
906

907
struct btusb_data {
908
	struct hci_dev       *hdev;
909
	struct usb_device    *udev;
910
	struct usb_interface *intf;
911
	struct usb_interface *isoc;
912
	struct usb_interface *diag;
913
	unsigned isoc_ifnum;
914

915
	unsigned long flags;
916

917
	bool poll_sync;
918
	int intr_interval;
919
	struct work_struct  work;
920
	struct work_struct  waker;
921
	struct delayed_work rx_work;
922

923
	struct sk_buff_head acl_q;
924

925
	struct usb_anchor deferred;
926
	struct usb_anchor tx_anchor;
927
	int tx_in_flight;
928
	spinlock_t txlock;
929

930
	struct usb_anchor intr_anchor;
931
	struct usb_anchor bulk_anchor;
932
	struct usb_anchor isoc_anchor;
933
	struct usb_anchor diag_anchor;
934
	struct usb_anchor ctrl_anchor;
935
	spinlock_t rxlock;
936

937
	struct sk_buff *evt_skb;
938
	struct sk_buff *acl_skb;
939
	struct sk_buff *sco_skb;
940

941
	struct usb_endpoint_descriptor *intr_ep;
942
	struct usb_endpoint_descriptor *bulk_tx_ep;
943
	struct usb_endpoint_descriptor *bulk_rx_ep;
944
	struct usb_endpoint_descriptor *isoc_tx_ep;
945
	struct usb_endpoint_descriptor *isoc_rx_ep;
946
	struct usb_endpoint_descriptor *diag_tx_ep;
947
	struct usb_endpoint_descriptor *diag_rx_ep;
948

949
	struct gpio_desc *reset_gpio;
950

951
	__u8 cmdreq_type;
952
	__u8 cmdreq;
953

954
	unsigned int sco_num;
955
	unsigned int air_mode;
956
	bool usb_alt6_packet_flow;
957
	int isoc_altsetting;
958
	int suspend_count;
959

960
	int (*recv_event)(struct hci_dev *hdev, struct sk_buff *skb);
961
	int (*recv_acl)(struct hci_dev *hdev, struct sk_buff *skb);
962
	int (*recv_bulk)(struct btusb_data *data, void *buffer, int count);
963

964
	int (*setup_on_usb)(struct hci_dev *hdev);
965

966
	int (*suspend)(struct hci_dev *hdev);
967
	int (*resume)(struct hci_dev *hdev);
968
	int (*disconnect)(struct hci_dev *hdev);
969

970
	int oob_wake_irq;   /* irq for out-of-band wake-on-bt */
971

972
	struct qca_dump_info qca_dump;
973
};
974

975
static void btusb_reset(struct hci_dev *hdev)
976
{
977
	struct btusb_data *data;
978
	int err;
979

980
	data = hci_get_drvdata(hdev);
981
	/* This is not an unbalanced PM reference since the device will reset */
982
	err = usb_autopm_get_interface(data->intf);
983
	if (err) {
984
		bt_dev_err(hdev, "Failed usb_autopm_get_interface: %d", err);
985
		return;
986
	}
987

988
	bt_dev_err(hdev, "Resetting usb device.");
989
	usb_queue_reset_device(data->intf);
990
}
991

992
static void btusb_intel_reset(struct hci_dev *hdev)
993
{
994
	struct btusb_data *data = hci_get_drvdata(hdev);
995
	struct gpio_desc *reset_gpio = data->reset_gpio;
996
	struct btintel_data *intel_data = hci_get_priv(hdev);
997

998
	if (intel_data->acpi_reset_method) {
999
		if (test_and_set_bit(INTEL_ACPI_RESET_ACTIVE, intel_data->flags)) {
1000
			bt_dev_err(hdev, "acpi: last reset failed ? Not resetting again");
1001
			return;
1002
		}
1003

1004
		bt_dev_err(hdev, "Initiating acpi reset method");
1005
		/* If ACPI reset method fails, lets try with legacy GPIO
1006
		 * toggling
1007
		 */
1008
		if (!intel_data->acpi_reset_method(hdev)) {
1009
			return;
1010
		}
1011
	}
1012

1013
	if (!reset_gpio) {
1014
		btusb_reset(hdev);
1015
		return;
1016
	}
1017

1018
	/*
1019
	 * Toggle the hard reset line if the platform provides one. The reset
1020
	 * is going to yank the device off the USB and then replug. So doing
1021
	 * once is enough. The cleanup is handled correctly on the way out
1022
	 * (standard USB disconnect), and the new device is detected cleanly
1023
	 * and bound to the driver again like it should be.
1024
	 */
1025
	if (test_and_set_bit(BTUSB_HW_RESET_ACTIVE, &data->flags)) {
1026
		bt_dev_err(hdev, "last reset failed? Not resetting again");
1027
		return;
1028
	}
1029

1030
	bt_dev_err(hdev, "Initiating HW reset via gpio");
1031
	gpiod_set_value_cansleep(reset_gpio, 1);
1032
	msleep(100);
1033
	gpiod_set_value_cansleep(reset_gpio, 0);
1034
}
1035

1036
#define RTK_DEVCOREDUMP_CODE_MEMDUMP		0x01
1037
#define RTK_DEVCOREDUMP_CODE_HW_ERR		0x02
1038
#define RTK_DEVCOREDUMP_CODE_CMD_TIMEOUT	0x03
1039

1040
#define RTK_SUB_EVENT_CODE_COREDUMP		0x34
1041

1042
struct rtk_dev_coredump_hdr {
1043
	u8 type;
1044
	u8 code;
1045
	u8 reserved[2];
1046
} __packed;
1047

1048
static inline void btusb_rtl_alloc_devcoredump(struct hci_dev *hdev,
1049
		struct rtk_dev_coredump_hdr *hdr, u8 *buf, u32 len)
1050
{
1051
	struct sk_buff *skb;
1052

1053
	skb = alloc_skb(len + sizeof(*hdr), GFP_ATOMIC);
1054
	if (!skb)
1055
		return;
1056

1057
	skb_put_data(skb, hdr, sizeof(*hdr));
1058
	if (len)
1059
		skb_put_data(skb, buf, len);
1060

1061
	if (!hci_devcd_init(hdev, skb->len)) {
1062
		hci_devcd_append(hdev, skb);
1063
		hci_devcd_complete(hdev);
1064
	} else {
1065
		bt_dev_err(hdev, "RTL: Failed to generate devcoredump");
1066
		kfree_skb(skb);
1067
	}
1068
}
1069

1070
static void btusb_rtl_reset(struct hci_dev *hdev)
1071
{
1072
	struct btusb_data *data = hci_get_drvdata(hdev);
1073
	struct gpio_desc *reset_gpio = data->reset_gpio;
1074
	struct rtk_dev_coredump_hdr hdr = {
1075
		.type = RTK_DEVCOREDUMP_CODE_CMD_TIMEOUT,
1076
	};
1077

1078
	btusb_rtl_alloc_devcoredump(hdev, &hdr, NULL, 0);
1079

1080
	if (!reset_gpio) {
1081
		btusb_reset(hdev);
1082
		return;
1083
	}
1084

1085
	/* Toggle the hard reset line. The Realtek device is going to
1086
	 * yank itself off the USB and then replug. The cleanup is handled
1087
	 * correctly on the way out (standard USB disconnect), and the new
1088
	 * device is detected cleanly and bound to the driver again like
1089
	 * it should be.
1090
	 */
1091
	if (test_and_set_bit(BTUSB_HW_RESET_ACTIVE, &data->flags)) {
1092
		bt_dev_err(hdev, "last reset failed? Not resetting again");
1093
		return;
1094
	}
1095

1096
	bt_dev_err(hdev, "Reset Realtek device via gpio");
1097
	gpiod_set_value_cansleep(reset_gpio, 1);
1098
	msleep(200);
1099
	gpiod_set_value_cansleep(reset_gpio, 0);
1100
}
1101

1102
static void btusb_rtl_hw_error(struct hci_dev *hdev, u8 code)
1103
{
1104
	struct rtk_dev_coredump_hdr hdr = {
1105
		.type = RTK_DEVCOREDUMP_CODE_HW_ERR,
1106
		.code = code,
1107
	};
1108

1109
	bt_dev_err(hdev, "RTL: hw err, trigger devcoredump (%d)", code);
1110

1111
	btusb_rtl_alloc_devcoredump(hdev, &hdr, NULL, 0);
1112
}
1113

1114
static void btusb_qca_reset(struct hci_dev *hdev)
1115
{
1116
	struct btusb_data *data = hci_get_drvdata(hdev);
1117
	struct gpio_desc *reset_gpio = data->reset_gpio;
1118

1119
	if (test_bit(BTUSB_HW_SSR_ACTIVE, &data->flags)) {
1120
		bt_dev_info(hdev, "Ramdump in progress, defer reset");
1121
		return;
1122
	}
1123

1124
	if (reset_gpio) {
1125
		bt_dev_err(hdev, "Reset qca device via bt_en gpio");
1126

1127
		/* Toggle the hard reset line. The qca bt device is going to
1128
		 * yank itself off the USB and then replug. The cleanup is handled
1129
		 * correctly on the way out (standard USB disconnect), and the new
1130
		 * device is detected cleanly and bound to the driver again like
1131
		 * it should be.
1132
		 */
1133
		if (test_and_set_bit(BTUSB_HW_RESET_ACTIVE, &data->flags)) {
1134
			bt_dev_err(hdev, "last reset failed? Not resetting again");
1135
			return;
1136
		}
1137

1138
		gpiod_set_value_cansleep(reset_gpio, 0);
1139
		msleep(200);
1140
		gpiod_set_value_cansleep(reset_gpio, 1);
1141

1142
		return;
1143
	}
1144

1145
	btusb_reset(hdev);
1146
}
1147

1148
static u8 btusb_classify_qca_pkt_type(struct hci_dev *hdev, struct sk_buff *skb)
1149
{
1150
	/* Some Qualcomm controllers, e.g., QCNFA765 with WCN6855 chip, send debug
1151
	 * packets as ACL frames with connection handle 0x2EDC. These are not real
1152
	 * ACL packets and should be reclassified as HCI_DIAG_PKT to prevent
1153
	 * "ACL packet for unknown connection handle 3804" errors.
1154
	 */
1155
	if (skb->len >= 2) {
1156
		u16 handle = get_unaligned_le16(skb->data);
1157

1158
		if (handle == 0x2EDC)
1159
			return HCI_DIAG_PKT;
1160
	}
1161

1162
	/* Use default packet type for other packets */
1163
	return hci_skb_pkt_type(skb);
1164
}
1165

1166
static inline void btusb_free_frags(struct btusb_data *data)
1167
{
1168
	unsigned long flags;
1169

1170
	spin_lock_irqsave(&data->rxlock, flags);
1171

1172
	dev_kfree_skb_irq(data->evt_skb);
1173
	data->evt_skb = NULL;
1174

1175
	dev_kfree_skb_irq(data->acl_skb);
1176
	data->acl_skb = NULL;
1177

1178
	dev_kfree_skb_irq(data->sco_skb);
1179
	data->sco_skb = NULL;
1180

1181
	spin_unlock_irqrestore(&data->rxlock, flags);
1182
}
1183

1184
static int btusb_recv_event(struct btusb_data *data, struct sk_buff *skb)
1185
{
1186
	if (data->intr_interval) {
1187
		/* Trigger dequeue immediately if an event is received */
1188
		schedule_delayed_work(&data->rx_work, 0);
1189
	}
1190

1191
	return data->recv_event(data->hdev, skb);
1192
}
1193

1194
static int btusb_recv_intr(struct btusb_data *data, void *buffer, int count)
1195
{
1196
	struct sk_buff *skb;
1197
	unsigned long flags;
1198
	int err = 0;
1199

1200
	spin_lock_irqsave(&data->rxlock, flags);
1201
	skb = data->evt_skb;
1202

1203
	while (count) {
1204
		int len;
1205

1206
		if (!skb) {
1207
			skb = bt_skb_alloc(HCI_MAX_EVENT_SIZE, GFP_ATOMIC);
1208
			if (!skb) {
1209
				err = -ENOMEM;
1210
				break;
1211
			}
1212

1213
			hci_skb_pkt_type(skb) = HCI_EVENT_PKT;
1214
			hci_skb_expect(skb) = HCI_EVENT_HDR_SIZE;
1215
		}
1216

1217
		len = min_t(uint, hci_skb_expect(skb), count);
1218
		skb_put_data(skb, buffer, len);
1219

1220
		count -= len;
1221
		buffer += len;
1222
		hci_skb_expect(skb) -= len;
1223

1224
		if (skb->len == HCI_EVENT_HDR_SIZE) {
1225
			/* Complete event header */
1226
			hci_skb_expect(skb) = hci_event_hdr(skb)->plen;
1227

1228
			if (skb_tailroom(skb) < hci_skb_expect(skb)) {
1229
				kfree_skb(skb);
1230
				skb = NULL;
1231

1232
				err = -EILSEQ;
1233
				break;
1234
			}
1235
		}
1236

1237
		if (!hci_skb_expect(skb)) {
1238
			/* Each chunk should correspond to at least 1 or more
1239
			 * events so if there are still bytes left that doesn't
1240
			 * constitute a new event this is likely a bug in the
1241
			 * controller.
1242
			 */
1243
			if (count && count < HCI_EVENT_HDR_SIZE) {
1244
				bt_dev_warn(data->hdev,
1245
					"Unexpected continuation: %d bytes",
1246
					count);
1247
				count = 0;
1248
			}
1249

1250
			/* Complete frame */
1251
			btusb_recv_event(data, skb);
1252
			skb = NULL;
1253
		}
1254
	}
1255

1256
	data->evt_skb = skb;
1257
	spin_unlock_irqrestore(&data->rxlock, flags);
1258

1259
	return err;
1260
}
1261

1262
static int btusb_recv_acl(struct btusb_data *data, struct sk_buff *skb)
1263
{
1264
	/* Only queue ACL packet if intr_interval is set as it means
1265
	 * force_poll_sync has been enabled.
1266
	 */
1267
	if (!data->intr_interval)
1268
		return data->recv_acl(data->hdev, skb);
1269

1270
	skb_queue_tail(&data->acl_q, skb);
1271
	schedule_delayed_work(&data->rx_work, data->intr_interval);
1272

1273
	return 0;
1274
}
1275

1276
static int btusb_recv_bulk(struct btusb_data *data, void *buffer, int count)
1277
{
1278
	struct sk_buff *skb;
1279
	unsigned long flags;
1280
	int err = 0;
1281

1282
	spin_lock_irqsave(&data->rxlock, flags);
1283
	skb = data->acl_skb;
1284

1285
	while (count) {
1286
		int len;
1287

1288
		if (!skb) {
1289
			skb = bt_skb_alloc(HCI_MAX_FRAME_SIZE, GFP_ATOMIC);
1290
			if (!skb) {
1291
				err = -ENOMEM;
1292
				break;
1293
			}
1294

1295
			hci_skb_pkt_type(skb) = HCI_ACLDATA_PKT;
1296
			hci_skb_expect(skb) = HCI_ACL_HDR_SIZE;
1297
		}
1298

1299
		len = min_t(uint, hci_skb_expect(skb), count);
1300
		skb_put_data(skb, buffer, len);
1301

1302
		count -= len;
1303
		buffer += len;
1304
		hci_skb_expect(skb) -= len;
1305

1306
		if (skb->len == HCI_ACL_HDR_SIZE) {
1307
			__le16 dlen = hci_acl_hdr(skb)->dlen;
1308

1309
			/* Complete ACL header */
1310
			hci_skb_expect(skb) = __le16_to_cpu(dlen);
1311

1312
			if (skb_tailroom(skb) < hci_skb_expect(skb)) {
1313
				kfree_skb(skb);
1314
				skb = NULL;
1315

1316
				err = -EILSEQ;
1317
				break;
1318
			}
1319
		}
1320

1321
		if (!hci_skb_expect(skb)) {
1322
			/* Complete frame */
1323
			btusb_recv_acl(data, skb);
1324
			skb = NULL;
1325
		}
1326
	}
1327

1328
	data->acl_skb = skb;
1329
	spin_unlock_irqrestore(&data->rxlock, flags);
1330

1331
	return err;
1332
}
1333

1334
static bool btusb_validate_sco_handle(struct hci_dev *hdev,
1335
				      struct hci_sco_hdr *hdr)
1336
{
1337
	__u16 handle;
1338

1339
	if (hci_dev_test_flag(hdev, HCI_USER_CHANNEL))
1340
		// Can't validate, userspace controls everything.
1341
		return true;
1342

1343
	/*
1344
	 * USB isochronous transfers are not designed to be reliable and may
1345
	 * lose fragments.  When this happens, the next first fragment
1346
	 * encountered might actually be a continuation fragment.
1347
	 * Validate the handle to detect it and drop it, or else the upper
1348
	 * layer will get garbage for a while.
1349
	 */
1350

1351
	handle = hci_handle(__le16_to_cpu(hdr->handle));
1352

1353
	switch (hci_conn_lookup_type(hdev, handle)) {
1354
	case SCO_LINK:
1355
	case ESCO_LINK:
1356
		return true;
1357
	default:
1358
		return false;
1359
	}
1360
}
1361

1362
static int btusb_recv_isoc(struct btusb_data *data, void *buffer, int count)
1363
{
1364
	struct sk_buff *skb;
1365
	unsigned long flags;
1366
	int err = 0;
1367

1368
	spin_lock_irqsave(&data->rxlock, flags);
1369
	skb = data->sco_skb;
1370

1371
	while (count) {
1372
		int len;
1373

1374
		if (!skb) {
1375
			skb = bt_skb_alloc(HCI_MAX_SCO_SIZE, GFP_ATOMIC);
1376
			if (!skb) {
1377
				err = -ENOMEM;
1378
				break;
1379
			}
1380

1381
			hci_skb_pkt_type(skb) = HCI_SCODATA_PKT;
1382
			hci_skb_expect(skb) = HCI_SCO_HDR_SIZE;
1383
		}
1384

1385
		len = min_t(uint, hci_skb_expect(skb), count);
1386
		skb_put_data(skb, buffer, len);
1387

1388
		count -= len;
1389
		buffer += len;
1390
		hci_skb_expect(skb) -= len;
1391

1392
		if (skb->len == HCI_SCO_HDR_SIZE) {
1393
			/* Complete SCO header */
1394
			struct hci_sco_hdr *hdr = hci_sco_hdr(skb);
1395

1396
			hci_skb_expect(skb) = hdr->dlen;
1397

1398
			if (skb_tailroom(skb) < hci_skb_expect(skb) ||
1399
			    !btusb_validate_sco_handle(data->hdev, hdr)) {
1400
				kfree_skb(skb);
1401
				skb = NULL;
1402

1403
				err = -EILSEQ;
1404
				break;
1405
			}
1406
		}
1407

1408
		if (!hci_skb_expect(skb)) {
1409
			/* Complete frame */
1410
			hci_recv_frame(data->hdev, skb);
1411
			skb = NULL;
1412
		}
1413
	}
1414

1415
	data->sco_skb = skb;
1416
	spin_unlock_irqrestore(&data->rxlock, flags);
1417

1418
	return err;
1419
}
1420

1421
static void btusb_intr_complete(struct urb *urb)
1422
{
1423
	struct hci_dev *hdev = urb->context;
1424
	struct btusb_data *data = hci_get_drvdata(hdev);
1425
	int err;
1426

1427
	BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
1428
	       urb->actual_length);
1429

1430
	if (!test_bit(HCI_RUNNING, &hdev->flags))
1431
		return;
1432

1433
	if (urb->status == 0) {
1434
		hdev->stat.byte_rx += urb->actual_length;
1435

1436
		if (btusb_recv_intr(data, urb->transfer_buffer,
1437
				    urb->actual_length) < 0) {
1438
			bt_dev_err(hdev, "corrupted event packet");
1439
			hdev->stat.err_rx++;
1440
		}
1441
	} else if (urb->status == -ENOENT) {
1442
		/* Avoid suspend failed when usb_kill_urb */
1443
		return;
1444
	}
1445

1446
	if (!test_bit(BTUSB_INTR_RUNNING, &data->flags))
1447
		return;
1448

1449
	usb_mark_last_busy(data->udev);
1450
	usb_anchor_urb(urb, &data->intr_anchor);
1451

1452
	err = usb_submit_urb(urb, GFP_ATOMIC);
1453
	if (err < 0) {
1454
		/* -EPERM: urb is being killed;
1455
		 * -ENODEV: device got disconnected
1456
		 */
1457
		if (err != -EPERM && err != -ENODEV)
1458
			bt_dev_err(hdev, "urb %p failed to resubmit (%d)",
1459
				   urb, -err);
1460
		if (err != -EPERM)
1461
			hci_cmd_sync_cancel(hdev, -err);
1462
		usb_unanchor_urb(urb);
1463
	}
1464
}
1465

1466
static int btusb_submit_intr_urb(struct hci_dev *hdev, gfp_t mem_flags)
1467
{
1468
	struct btusb_data *data = hci_get_drvdata(hdev);
1469
	struct urb *urb;
1470
	unsigned char *buf;
1471
	unsigned int pipe;
1472
	int err, size;
1473

1474
	BT_DBG("%s", hdev->name);
1475

1476
	if (!data->intr_ep)
1477
		return -ENODEV;
1478

1479
	urb = usb_alloc_urb(0, mem_flags);
1480
	if (!urb)
1481
		return -ENOMEM;
1482

1483
	if (le16_to_cpu(data->udev->descriptor.idVendor)  == 0x0a12 &&
1484
	    le16_to_cpu(data->udev->descriptor.idProduct) == 0x0001)
1485
		/* Fake CSR devices don't seem to support sort-transter */
1486
		size = le16_to_cpu(data->intr_ep->wMaxPacketSize);
1487
	else
1488
		/* Use maximum HCI Event size so the USB stack handles
1489
		 * ZPL/short-transfer automatically.
1490
		 */
1491
		size = HCI_MAX_EVENT_SIZE;
1492

1493
	buf = kmalloc(size, mem_flags);
1494
	if (!buf) {
1495
		usb_free_urb(urb);
1496
		return -ENOMEM;
1497
	}
1498

1499
	pipe = usb_rcvintpipe(data->udev, data->intr_ep->bEndpointAddress);
1500

1501
	usb_fill_int_urb(urb, data->udev, pipe, buf, size,
1502
			 btusb_intr_complete, hdev, data->intr_ep->bInterval);
1503

1504
	urb->transfer_flags |= URB_FREE_BUFFER;
1505

1506
	usb_anchor_urb(urb, &data->intr_anchor);
1507

1508
	err = usb_submit_urb(urb, mem_flags);
1509
	if (err < 0) {
1510
		if (err != -EPERM && err != -ENODEV)
1511
			bt_dev_err(hdev, "urb %p submission failed (%d)",
1512
				   urb, -err);
1513
		if (err != -EPERM)
1514
			hci_cmd_sync_cancel(hdev, -err);
1515
		usb_unanchor_urb(urb);
1516
	}
1517

1518
	/* Only initialize intr_interval if URB poll sync is enabled */
1519
	if (!data->poll_sync)
1520
		goto done;
1521

1522
	/* The units are frames (milliseconds) for full and low speed devices,
1523
	 * and microframes (1/8 millisecond) for highspeed and SuperSpeed
1524
	 * devices.
1525
	 *
1526
	 * This is done once on open/resume so it shouldn't change even if
1527
	 * force_poll_sync changes.
1528
	 */
1529
	switch (urb->dev->speed) {
1530
	case USB_SPEED_SUPER_PLUS:
1531
	case USB_SPEED_SUPER:	/* units are 125us */
1532
		data->intr_interval = usecs_to_jiffies(urb->interval * 125);
1533
		break;
1534
	default:
1535
		data->intr_interval = msecs_to_jiffies(urb->interval);
1536
		break;
1537
	}
1538

1539
done:
1540
	usb_free_urb(urb);
1541

1542
	return err;
1543
}
1544

1545
static void btusb_bulk_complete(struct urb *urb)
1546
{
1547
	struct hci_dev *hdev = urb->context;
1548
	struct btusb_data *data = hci_get_drvdata(hdev);
1549
	int err;
1550

1551
	BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
1552
	       urb->actual_length);
1553

1554
	if (!test_bit(HCI_RUNNING, &hdev->flags))
1555
		return;
1556

1557
	if (urb->status == 0) {
1558
		hdev->stat.byte_rx += urb->actual_length;
1559

1560
		if (data->recv_bulk(data, urb->transfer_buffer,
1561
				    urb->actual_length) < 0) {
1562
			bt_dev_err(hdev, "corrupted ACL packet");
1563
			hdev->stat.err_rx++;
1564
		}
1565
	} else if (urb->status == -ENOENT) {
1566
		/* Avoid suspend failed when usb_kill_urb */
1567
		return;
1568
	}
1569

1570
	if (!test_bit(BTUSB_BULK_RUNNING, &data->flags))
1571
		return;
1572

1573
	usb_anchor_urb(urb, &data->bulk_anchor);
1574
	usb_mark_last_busy(data->udev);
1575

1576
	err = usb_submit_urb(urb, GFP_ATOMIC);
1577
	if (err < 0) {
1578
		/* -EPERM: urb is being killed;
1579
		 * -ENODEV: device got disconnected
1580
		 */
1581
		if (err != -EPERM && err != -ENODEV)
1582
			bt_dev_err(hdev, "urb %p failed to resubmit (%d)",
1583
				   urb, -err);
1584
		usb_unanchor_urb(urb);
1585
	}
1586
}
1587

1588
static int btusb_submit_bulk_urb(struct hci_dev *hdev, gfp_t mem_flags)
1589
{
1590
	struct btusb_data *data = hci_get_drvdata(hdev);
1591
	struct urb *urb;
1592
	unsigned char *buf;
1593
	unsigned int pipe;
1594
	int err, size = HCI_MAX_FRAME_SIZE;
1595

1596
	BT_DBG("%s", hdev->name);
1597

1598
	if (!data->bulk_rx_ep)
1599
		return -ENODEV;
1600

1601
	urb = usb_alloc_urb(0, mem_flags);
1602
	if (!urb)
1603
		return -ENOMEM;
1604

1605
	buf = kmalloc(size, mem_flags);
1606
	if (!buf) {
1607
		usb_free_urb(urb);
1608
		return -ENOMEM;
1609
	}
1610

1611
	pipe = usb_rcvbulkpipe(data->udev, data->bulk_rx_ep->bEndpointAddress);
1612

1613
	usb_fill_bulk_urb(urb, data->udev, pipe, buf, size,
1614
			  btusb_bulk_complete, hdev);
1615

1616
	urb->transfer_flags |= URB_FREE_BUFFER;
1617

1618
	usb_mark_last_busy(data->udev);
1619
	usb_anchor_urb(urb, &data->bulk_anchor);
1620

1621
	err = usb_submit_urb(urb, mem_flags);
1622
	if (err < 0) {
1623
		if (err != -EPERM && err != -ENODEV)
1624
			bt_dev_err(hdev, "urb %p submission failed (%d)",
1625
				   urb, -err);
1626
		usb_unanchor_urb(urb);
1627
	}
1628

1629
	usb_free_urb(urb);
1630

1631
	return err;
1632
}
1633

1634
static void btusb_isoc_complete(struct urb *urb)
1635
{
1636
	struct hci_dev *hdev = urb->context;
1637
	struct btusb_data *data = hci_get_drvdata(hdev);
1638
	int i, err;
1639

1640
	BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
1641
	       urb->actual_length);
1642

1643
	if (!test_bit(HCI_RUNNING, &hdev->flags))
1644
		return;
1645

1646
	if (urb->status == 0) {
1647
		for (i = 0; i < urb->number_of_packets; i++) {
1648
			unsigned int offset = urb->iso_frame_desc[i].offset;
1649
			unsigned int length = urb->iso_frame_desc[i].actual_length;
1650

1651
			if (urb->iso_frame_desc[i].status)
1652
				continue;
1653

1654
			hdev->stat.byte_rx += length;
1655

1656
			if (btusb_recv_isoc(data, urb->transfer_buffer + offset,
1657
					    length) < 0) {
1658
				bt_dev_err(hdev, "corrupted SCO packet");
1659
				hdev->stat.err_rx++;
1660
			}
1661
		}
1662
	} else if (urb->status == -ENOENT) {
1663
		/* Avoid suspend failed when usb_kill_urb */
1664
		return;
1665
	}
1666

1667
	if (!test_bit(BTUSB_ISOC_RUNNING, &data->flags))
1668
		return;
1669

1670
	usb_anchor_urb(urb, &data->isoc_anchor);
1671

1672
	err = usb_submit_urb(urb, GFP_ATOMIC);
1673
	if (err < 0) {
1674
		/* -EPERM: urb is being killed;
1675
		 * -ENODEV: device got disconnected
1676
		 */
1677
		if (err != -EPERM && err != -ENODEV)
1678
			bt_dev_err(hdev, "urb %p failed to resubmit (%d)",
1679
				   urb, -err);
1680
		usb_unanchor_urb(urb);
1681
	}
1682
}
1683

1684
static inline void __fill_isoc_descriptor_msbc(struct urb *urb, int len,
1685
					       int mtu, struct btusb_data *data)
1686
{
1687
	int i = 0, offset = 0;
1688
	unsigned int interval;
1689

1690
	BT_DBG("len %d mtu %d", len, mtu);
1691

1692
	/* For mSBC ALT 6 settings some chips need to transmit the data
1693
	 * continuously without the zero length of USB packets.
1694
	 */
1695
	if (test_bit(BTUSB_ALT6_CONTINUOUS_TX, &data->flags))
1696
		goto ignore_usb_alt6_packet_flow;
1697

1698
	/* For mSBC ALT 6 setting the host will send the packet at continuous
1699
	 * flow. As per core spec 5, vol 4, part B, table 2.1. For ALT setting
1700
	 * 6 the HCI PACKET INTERVAL should be 7.5ms for every usb packets.
1701
	 * To maintain the rate we send 63bytes of usb packets alternatively for
1702
	 * 7ms and 8ms to maintain the rate as 7.5ms.
1703
	 */
1704
	if (data->usb_alt6_packet_flow) {
1705
		interval = 7;
1706
		data->usb_alt6_packet_flow = false;
1707
	} else {
1708
		interval = 6;
1709
		data->usb_alt6_packet_flow = true;
1710
	}
1711

1712
	for (i = 0; i < interval; i++) {
1713
		urb->iso_frame_desc[i].offset = offset;
1714
		urb->iso_frame_desc[i].length = offset;
1715
	}
1716

1717
ignore_usb_alt6_packet_flow:
1718
	if (len && i < BTUSB_MAX_ISOC_FRAMES) {
1719
		urb->iso_frame_desc[i].offset = offset;
1720
		urb->iso_frame_desc[i].length = len;
1721
		i++;
1722
	}
1723

1724
	urb->number_of_packets = i;
1725
}
1726

1727
static inline void __fill_isoc_descriptor(struct urb *urb, int len, int mtu)
1728
{
1729
	int i, offset = 0;
1730

1731
	BT_DBG("len %d mtu %d", len, mtu);
1732

1733
	for (i = 0; i < BTUSB_MAX_ISOC_FRAMES && len >= mtu;
1734
					i++, offset += mtu, len -= mtu) {
1735
		urb->iso_frame_desc[i].offset = offset;
1736
		urb->iso_frame_desc[i].length = mtu;
1737
	}
1738

1739
	if (len && i < BTUSB_MAX_ISOC_FRAMES) {
1740
		urb->iso_frame_desc[i].offset = offset;
1741
		urb->iso_frame_desc[i].length = len;
1742
		i++;
1743
	}
1744

1745
	urb->number_of_packets = i;
1746
}
1747

1748
static int btusb_submit_isoc_urb(struct hci_dev *hdev, gfp_t mem_flags)
1749
{
1750
	struct btusb_data *data = hci_get_drvdata(hdev);
1751
	struct urb *urb;
1752
	unsigned char *buf;
1753
	unsigned int pipe;
1754
	int err, size;
1755

1756
	BT_DBG("%s", hdev->name);
1757

1758
	if (!data->isoc_rx_ep)
1759
		return -ENODEV;
1760

1761
	urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, mem_flags);
1762
	if (!urb)
1763
		return -ENOMEM;
1764

1765
	size = le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize) *
1766
						BTUSB_MAX_ISOC_FRAMES;
1767

1768
	buf = kmalloc(size, mem_flags);
1769
	if (!buf) {
1770
		usb_free_urb(urb);
1771
		return -ENOMEM;
1772
	}
1773

1774
	pipe = usb_rcvisocpipe(data->udev, data->isoc_rx_ep->bEndpointAddress);
1775

1776
	usb_fill_int_urb(urb, data->udev, pipe, buf, size, btusb_isoc_complete,
1777
			 hdev, data->isoc_rx_ep->bInterval);
1778

1779
	urb->transfer_flags = URB_FREE_BUFFER | URB_ISO_ASAP;
1780

1781
	__fill_isoc_descriptor(urb, size,
1782
			       le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize));
1783

1784
	usb_anchor_urb(urb, &data->isoc_anchor);
1785

1786
	err = usb_submit_urb(urb, mem_flags);
1787
	if (err < 0) {
1788
		if (err != -EPERM && err != -ENODEV)
1789
			bt_dev_err(hdev, "urb %p submission failed (%d)",
1790
				   urb, -err);
1791
		usb_unanchor_urb(urb);
1792
	}
1793

1794
	usb_free_urb(urb);
1795

1796
	return err;
1797
}
1798

1799
static void btusb_diag_complete(struct urb *urb)
1800
{
1801
	struct hci_dev *hdev = urb->context;
1802
	struct btusb_data *data = hci_get_drvdata(hdev);
1803
	int err;
1804

1805
	BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
1806
	       urb->actual_length);
1807

1808
	if (urb->status == 0) {
1809
		struct sk_buff *skb;
1810

1811
		skb = bt_skb_alloc(urb->actual_length, GFP_ATOMIC);
1812
		if (skb) {
1813
			skb_put_data(skb, urb->transfer_buffer,
1814
				     urb->actual_length);
1815
			hci_recv_diag(hdev, skb);
1816
		}
1817
	} else if (urb->status == -ENOENT) {
1818
		/* Avoid suspend failed when usb_kill_urb */
1819
		return;
1820
	}
1821

1822
	if (!test_bit(BTUSB_DIAG_RUNNING, &data->flags))
1823
		return;
1824

1825
	usb_anchor_urb(urb, &data->diag_anchor);
1826
	usb_mark_last_busy(data->udev);
1827

1828
	err = usb_submit_urb(urb, GFP_ATOMIC);
1829
	if (err < 0) {
1830
		/* -EPERM: urb is being killed;
1831
		 * -ENODEV: device got disconnected
1832
		 */
1833
		if (err != -EPERM && err != -ENODEV)
1834
			bt_dev_err(hdev, "urb %p failed to resubmit (%d)",
1835
				   urb, -err);
1836
		usb_unanchor_urb(urb);
1837
	}
1838
}
1839

1840
static int btusb_submit_diag_urb(struct hci_dev *hdev, gfp_t mem_flags)
1841
{
1842
	struct btusb_data *data = hci_get_drvdata(hdev);
1843
	struct urb *urb;
1844
	unsigned char *buf;
1845
	unsigned int pipe;
1846
	int err, size = HCI_MAX_FRAME_SIZE;
1847

1848
	BT_DBG("%s", hdev->name);
1849

1850
	if (!data->diag_rx_ep)
1851
		return -ENODEV;
1852

1853
	urb = usb_alloc_urb(0, mem_flags);
1854
	if (!urb)
1855
		return -ENOMEM;
1856

1857
	buf = kmalloc(size, mem_flags);
1858
	if (!buf) {
1859
		usb_free_urb(urb);
1860
		return -ENOMEM;
1861
	}
1862

1863
	pipe = usb_rcvbulkpipe(data->udev, data->diag_rx_ep->bEndpointAddress);
1864

1865
	usb_fill_bulk_urb(urb, data->udev, pipe, buf, size,
1866
			  btusb_diag_complete, hdev);
1867

1868
	urb->transfer_flags |= URB_FREE_BUFFER;
1869

1870
	usb_mark_last_busy(data->udev);
1871
	usb_anchor_urb(urb, &data->diag_anchor);
1872

1873
	err = usb_submit_urb(urb, mem_flags);
1874
	if (err < 0) {
1875
		if (err != -EPERM && err != -ENODEV)
1876
			bt_dev_err(hdev, "urb %p submission failed (%d)",
1877
				   urb, -err);
1878
		usb_unanchor_urb(urb);
1879
	}
1880

1881
	usb_free_urb(urb);
1882

1883
	return err;
1884
}
1885

1886
static void btusb_tx_complete(struct urb *urb)
1887
{
1888
	struct sk_buff *skb = urb->context;
1889
	struct hci_dev *hdev = (struct hci_dev *)skb->dev;
1890
	struct btusb_data *data = hci_get_drvdata(hdev);
1891
	unsigned long flags;
1892

1893
	BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
1894
	       urb->actual_length);
1895

1896
	if (!test_bit(HCI_RUNNING, &hdev->flags))
1897
		goto done;
1898

1899
	if (!urb->status) {
1900
		hdev->stat.byte_tx += urb->transfer_buffer_length;
1901
	} else {
1902
		if (hci_skb_pkt_type(skb) == HCI_COMMAND_PKT)
1903
			hci_cmd_sync_cancel(hdev, -urb->status);
1904
		hdev->stat.err_tx++;
1905
	}
1906

1907
done:
1908
	spin_lock_irqsave(&data->txlock, flags);
1909
	data->tx_in_flight--;
1910
	spin_unlock_irqrestore(&data->txlock, flags);
1911

1912
	kfree(urb->setup_packet);
1913

1914
	kfree_skb(skb);
1915
}
1916

1917
static void btusb_isoc_tx_complete(struct urb *urb)
1918
{
1919
	struct sk_buff *skb = urb->context;
1920
	struct hci_dev *hdev = (struct hci_dev *)skb->dev;
1921

1922
	BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
1923
	       urb->actual_length);
1924

1925
	if (!test_bit(HCI_RUNNING, &hdev->flags))
1926
		goto done;
1927

1928
	if (!urb->status)
1929
		hdev->stat.byte_tx += urb->transfer_buffer_length;
1930
	else
1931
		hdev->stat.err_tx++;
1932

1933
done:
1934
	kfree(urb->setup_packet);
1935

1936
	kfree_skb(skb);
1937
}
1938

1939
static int btusb_open(struct hci_dev *hdev)
1940
{
1941
	struct btusb_data *data = hci_get_drvdata(hdev);
1942
	int err;
1943

1944
	BT_DBG("%s", hdev->name);
1945

1946
	err = usb_autopm_get_interface(data->intf);
1947
	if (err < 0)
1948
		return err;
1949

1950
	/* Patching USB firmware files prior to starting any URBs of HCI path
1951
	 * It is more safe to use USB bulk channel for downloading USB patch
1952
	 */
1953
	if (data->setup_on_usb) {
1954
		err = data->setup_on_usb(hdev);
1955
		if (err < 0)
1956
			goto setup_fail;
1957
	}
1958

1959
	data->intf->needs_remote_wakeup = 1;
1960

1961
	if (test_and_set_bit(BTUSB_INTR_RUNNING, &data->flags))
1962
		goto done;
1963

1964
	err = btusb_submit_intr_urb(hdev, GFP_KERNEL);
1965
	if (err < 0)
1966
		goto failed;
1967

1968
	err = btusb_submit_bulk_urb(hdev, GFP_KERNEL);
1969
	if (err < 0) {
1970
		usb_kill_anchored_urbs(&data->intr_anchor);
1971
		goto failed;
1972
	}
1973

1974
	set_bit(BTUSB_BULK_RUNNING, &data->flags);
1975
	btusb_submit_bulk_urb(hdev, GFP_KERNEL);
1976

1977
	if (data->diag) {
1978
		if (!btusb_submit_diag_urb(hdev, GFP_KERNEL))
1979
			set_bit(BTUSB_DIAG_RUNNING, &data->flags);
1980
	}
1981

1982
done:
1983
	usb_autopm_put_interface(data->intf);
1984
	return 0;
1985

1986
failed:
1987
	clear_bit(BTUSB_INTR_RUNNING, &data->flags);
1988
setup_fail:
1989
	usb_autopm_put_interface(data->intf);
1990
	return err;
1991
}
1992

1993
static void btusb_stop_traffic(struct btusb_data *data)
1994
{
1995
	usb_kill_anchored_urbs(&data->intr_anchor);
1996
	usb_kill_anchored_urbs(&data->bulk_anchor);
1997
	usb_kill_anchored_urbs(&data->isoc_anchor);
1998
	usb_kill_anchored_urbs(&data->diag_anchor);
1999
	usb_kill_anchored_urbs(&data->ctrl_anchor);
2000
}
2001

2002
static int btusb_close(struct hci_dev *hdev)
2003
{
2004
	struct btusb_data *data = hci_get_drvdata(hdev);
2005
	int err;
2006

2007
	BT_DBG("%s", hdev->name);
2008

2009
	cancel_delayed_work(&data->rx_work);
2010
	cancel_work_sync(&data->work);
2011
	cancel_work_sync(&data->waker);
2012

2013
	skb_queue_purge(&data->acl_q);
2014

2015
	clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
2016
	clear_bit(BTUSB_BULK_RUNNING, &data->flags);
2017
	clear_bit(BTUSB_INTR_RUNNING, &data->flags);
2018
	clear_bit(BTUSB_DIAG_RUNNING, &data->flags);
2019

2020
	btusb_stop_traffic(data);
2021
	btusb_free_frags(data);
2022

2023
	err = usb_autopm_get_interface(data->intf);
2024
	if (err < 0)
2025
		goto failed;
2026

2027
	data->intf->needs_remote_wakeup = 0;
2028

2029
	/* Enable remote wake up for auto-suspend */
2030
	if (test_bit(BTUSB_WAKEUP_AUTOSUSPEND, &data->flags))
2031
		data->intf->needs_remote_wakeup = 1;
2032

2033
	usb_autopm_put_interface(data->intf);
2034

2035
failed:
2036
	usb_scuttle_anchored_urbs(&data->deferred);
2037
	return 0;
2038
}
2039

2040
static int btusb_flush(struct hci_dev *hdev)
2041
{
2042
	struct btusb_data *data = hci_get_drvdata(hdev);
2043

2044
	BT_DBG("%s", hdev->name);
2045

2046
	cancel_delayed_work(&data->rx_work);
2047

2048
	skb_queue_purge(&data->acl_q);
2049

2050
	usb_kill_anchored_urbs(&data->tx_anchor);
2051
	btusb_free_frags(data);
2052

2053
	return 0;
2054
}
2055

2056
static struct urb *alloc_ctrl_urb(struct hci_dev *hdev, struct sk_buff *skb)
2057
{
2058
	struct btusb_data *data = hci_get_drvdata(hdev);
2059
	struct usb_ctrlrequest *dr;
2060
	struct urb *urb;
2061
	unsigned int pipe;
2062

2063
	urb = usb_alloc_urb(0, GFP_KERNEL);
2064
	if (!urb)
2065
		return ERR_PTR(-ENOMEM);
2066

2067
	dr = kmalloc(sizeof(*dr), GFP_KERNEL);
2068
	if (!dr) {
2069
		usb_free_urb(urb);
2070
		return ERR_PTR(-ENOMEM);
2071
	}
2072

2073
	dr->bRequestType = data->cmdreq_type;
2074
	dr->bRequest     = data->cmdreq;
2075
	dr->wIndex       = 0;
2076
	dr->wValue       = 0;
2077
	dr->wLength      = __cpu_to_le16(skb->len);
2078

2079
	pipe = usb_sndctrlpipe(data->udev, 0x00);
2080

2081
	usb_fill_control_urb(urb, data->udev, pipe, (void *)dr,
2082
			     skb->data, skb->len, btusb_tx_complete, skb);
2083

2084
	skb->dev = (void *)hdev;
2085

2086
	return urb;
2087
}
2088

2089
static struct urb *alloc_bulk_urb(struct hci_dev *hdev, struct sk_buff *skb)
2090
{
2091
	struct btusb_data *data = hci_get_drvdata(hdev);
2092
	struct urb *urb;
2093
	unsigned int pipe;
2094

2095
	if (!data->bulk_tx_ep)
2096
		return ERR_PTR(-ENODEV);
2097

2098
	urb = usb_alloc_urb(0, GFP_KERNEL);
2099
	if (!urb)
2100
		return ERR_PTR(-ENOMEM);
2101

2102
	pipe = usb_sndbulkpipe(data->udev, data->bulk_tx_ep->bEndpointAddress);
2103

2104
	usb_fill_bulk_urb(urb, data->udev, pipe,
2105
			  skb->data, skb->len, btusb_tx_complete, skb);
2106

2107
	skb->dev = (void *)hdev;
2108

2109
	return urb;
2110
}
2111

2112
static struct urb *alloc_isoc_urb(struct hci_dev *hdev, struct sk_buff *skb)
2113
{
2114
	struct btusb_data *data = hci_get_drvdata(hdev);
2115
	struct urb *urb;
2116
	unsigned int pipe;
2117

2118
	if (!data->isoc_tx_ep)
2119
		return ERR_PTR(-ENODEV);
2120

2121
	urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, GFP_KERNEL);
2122
	if (!urb)
2123
		return ERR_PTR(-ENOMEM);
2124

2125
	pipe = usb_sndisocpipe(data->udev, data->isoc_tx_ep->bEndpointAddress);
2126

2127
	usb_fill_int_urb(urb, data->udev, pipe,
2128
			 skb->data, skb->len, btusb_isoc_tx_complete,
2129
			 skb, data->isoc_tx_ep->bInterval);
2130

2131
	urb->transfer_flags  = URB_ISO_ASAP;
2132

2133
	if (data->isoc_altsetting == 6)
2134
		__fill_isoc_descriptor_msbc(urb, skb->len,
2135
					    le16_to_cpu(data->isoc_tx_ep->wMaxPacketSize),
2136
					    data);
2137
	else
2138
		__fill_isoc_descriptor(urb, skb->len,
2139
				       le16_to_cpu(data->isoc_tx_ep->wMaxPacketSize));
2140
	skb->dev = (void *)hdev;
2141

2142
	return urb;
2143
}
2144

2145
static int submit_tx_urb(struct hci_dev *hdev, struct urb *urb)
2146
{
2147
	struct btusb_data *data = hci_get_drvdata(hdev);
2148
	int err;
2149

2150
	usb_anchor_urb(urb, &data->tx_anchor);
2151

2152
	err = usb_submit_urb(urb, GFP_KERNEL);
2153
	if (err < 0) {
2154
		if (err != -EPERM && err != -ENODEV)
2155
			bt_dev_err(hdev, "urb %p submission failed (%d)",
2156
				   urb, -err);
2157
		kfree(urb->setup_packet);
2158
		usb_unanchor_urb(urb);
2159
	} else {
2160
		usb_mark_last_busy(data->udev);
2161
	}
2162

2163
	usb_free_urb(urb);
2164
	return err;
2165
}
2166

2167
static int submit_or_queue_tx_urb(struct hci_dev *hdev, struct urb *urb)
2168
{
2169
	struct btusb_data *data = hci_get_drvdata(hdev);
2170
	unsigned long flags;
2171
	bool suspending;
2172

2173
	spin_lock_irqsave(&data->txlock, flags);
2174
	suspending = test_bit(BTUSB_SUSPENDING, &data->flags);
2175
	if (!suspending)
2176
		data->tx_in_flight++;
2177
	spin_unlock_irqrestore(&data->txlock, flags);
2178

2179
	if (!suspending)
2180
		return submit_tx_urb(hdev, urb);
2181

2182
	usb_anchor_urb(urb, &data->deferred);
2183
	schedule_work(&data->waker);
2184

2185
	usb_free_urb(urb);
2186
	return 0;
2187
}
2188

2189
static int btusb_send_frame(struct hci_dev *hdev, struct sk_buff *skb)
2190
{
2191
	struct urb *urb;
2192

2193
	BT_DBG("%s", hdev->name);
2194

2195
	switch (hci_skb_pkt_type(skb)) {
2196
	case HCI_COMMAND_PKT:
2197
		urb = alloc_ctrl_urb(hdev, skb);
2198
		if (IS_ERR(urb))
2199
			return PTR_ERR(urb);
2200

2201
		hdev->stat.cmd_tx++;
2202
		return submit_or_queue_tx_urb(hdev, urb);
2203

2204
	case HCI_ACLDATA_PKT:
2205
		urb = alloc_bulk_urb(hdev, skb);
2206
		if (IS_ERR(urb))
2207
			return PTR_ERR(urb);
2208

2209
		hdev->stat.acl_tx++;
2210
		return submit_or_queue_tx_urb(hdev, urb);
2211

2212
	case HCI_SCODATA_PKT:
2213
		if (!hci_dev_test_flag(hdev, HCI_USER_CHANNEL) &&
2214
		    hci_conn_num(hdev, SCO_LINK) < 1)
2215
			return -ENODEV;
2216

2217
		urb = alloc_isoc_urb(hdev, skb);
2218
		if (IS_ERR(urb))
2219
			return PTR_ERR(urb);
2220

2221
		hdev->stat.sco_tx++;
2222
		return submit_tx_urb(hdev, urb);
2223

2224
	case HCI_ISODATA_PKT:
2225
		urb = alloc_bulk_urb(hdev, skb);
2226
		if (IS_ERR(urb))
2227
			return PTR_ERR(urb);
2228

2229
		return submit_or_queue_tx_urb(hdev, urb);
2230
	}
2231

2232
	return -EILSEQ;
2233
}
2234

2235
static void btusb_notify(struct hci_dev *hdev, unsigned int evt)
2236
{
2237
	struct btusb_data *data = hci_get_drvdata(hdev);
2238

2239
	BT_DBG("%s evt %d", hdev->name, evt);
2240

2241
	if (hci_conn_num(hdev, SCO_LINK) != data->sco_num) {
2242
		data->sco_num = hci_conn_num(hdev, SCO_LINK);
2243
		data->air_mode = evt;
2244
		schedule_work(&data->work);
2245
	}
2246
}
2247

2248
static inline int __set_isoc_interface(struct hci_dev *hdev, int altsetting)
2249
{
2250
	struct btusb_data *data = hci_get_drvdata(hdev);
2251
	struct usb_interface *intf = data->isoc;
2252
	struct usb_endpoint_descriptor *ep_desc;
2253
	int i, err;
2254

2255
	if (!data->isoc)
2256
		return -ENODEV;
2257

2258
	err = usb_set_interface(data->udev, data->isoc_ifnum, altsetting);
2259
	if (err < 0) {
2260
		bt_dev_err(hdev, "setting interface failed (%d)", -err);
2261
		return err;
2262
	}
2263

2264
	data->isoc_altsetting = altsetting;
2265

2266
	data->isoc_tx_ep = NULL;
2267
	data->isoc_rx_ep = NULL;
2268

2269
	for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
2270
		ep_desc = &intf->cur_altsetting->endpoint[i].desc;
2271

2272
		if (!data->isoc_tx_ep && usb_endpoint_is_isoc_out(ep_desc)) {
2273
			data->isoc_tx_ep = ep_desc;
2274
			continue;
2275
		}
2276

2277
		if (!data->isoc_rx_ep && usb_endpoint_is_isoc_in(ep_desc)) {
2278
			data->isoc_rx_ep = ep_desc;
2279
			continue;
2280
		}
2281
	}
2282

2283
	if (!data->isoc_tx_ep || !data->isoc_rx_ep) {
2284
		bt_dev_err(hdev, "invalid SCO descriptors");
2285
		return -ENODEV;
2286
	}
2287

2288
	return 0;
2289
}
2290

2291
static int btusb_switch_alt_setting(struct hci_dev *hdev, int new_alts)
2292
{
2293
	struct btusb_data *data = hci_get_drvdata(hdev);
2294
	int err;
2295

2296
	if (data->isoc_altsetting != new_alts) {
2297
		unsigned long flags;
2298

2299
		clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
2300
		usb_kill_anchored_urbs(&data->isoc_anchor);
2301

2302
		/* When isochronous alternate setting needs to be
2303
		 * changed, because SCO connection has been added
2304
		 * or removed, a packet fragment may be left in the
2305
		 * reassembling state. This could lead to wrongly
2306
		 * assembled fragments.
2307
		 *
2308
		 * Clear outstanding fragment when selecting a new
2309
		 * alternate setting.
2310
		 */
2311
		spin_lock_irqsave(&data->rxlock, flags);
2312
		dev_kfree_skb_irq(data->sco_skb);
2313
		data->sco_skb = NULL;
2314
		spin_unlock_irqrestore(&data->rxlock, flags);
2315

2316
		err = __set_isoc_interface(hdev, new_alts);
2317
		if (err < 0)
2318
			return err;
2319
	}
2320

2321
	if (!test_and_set_bit(BTUSB_ISOC_RUNNING, &data->flags)) {
2322
		if (btusb_submit_isoc_urb(hdev, GFP_KERNEL) < 0)
2323
			clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
2324
		else
2325
			btusb_submit_isoc_urb(hdev, GFP_KERNEL);
2326
	}
2327

2328
	return 0;
2329
}
2330

2331
static struct usb_host_interface *btusb_find_altsetting(struct btusb_data *data,
2332
							int alt)
2333
{
2334
	struct usb_interface *intf = data->isoc;
2335
	int i;
2336

2337
	BT_DBG("Looking for Alt no :%d", alt);
2338

2339
	if (!intf)
2340
		return NULL;
2341

2342
	for (i = 0; i < intf->num_altsetting; i++) {
2343
		if (intf->altsetting[i].desc.bAlternateSetting == alt)
2344
			return &intf->altsetting[i];
2345
	}
2346

2347
	return NULL;
2348
}
2349

2350
static void btusb_work(struct work_struct *work)
2351
{
2352
	struct btusb_data *data = container_of(work, struct btusb_data, work);
2353
	struct hci_dev *hdev = data->hdev;
2354
	int new_alts = 0;
2355
	int err;
2356

2357
	if (data->sco_num > 0) {
2358
		if (!test_bit(BTUSB_DID_ISO_RESUME, &data->flags)) {
2359
			err = usb_autopm_get_interface(data->isoc ? data->isoc : data->intf);
2360
			if (err < 0) {
2361
				clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
2362
				usb_kill_anchored_urbs(&data->isoc_anchor);
2363
				return;
2364
			}
2365

2366
			set_bit(BTUSB_DID_ISO_RESUME, &data->flags);
2367
		}
2368

2369
		if (data->air_mode == HCI_NOTIFY_ENABLE_SCO_CVSD) {
2370
			if (hdev->voice_setting & 0x0020) {
2371
				static const int alts[3] = { 2, 4, 5 };
2372

2373
				new_alts = alts[data->sco_num - 1];
2374
			} else {
2375
				new_alts = data->sco_num;
2376
			}
2377
		} else if (data->air_mode == HCI_NOTIFY_ENABLE_SCO_TRANSP) {
2378
			/* Bluetooth USB spec recommends alt 6 (63 bytes), but
2379
			 * many adapters do not support it.  Alt 1 appears to
2380
			 * work for all adapters that do not have alt 6, and
2381
			 * which work with WBS at all.  Some devices prefer
2382
			 * alt 3 (HCI payload >= 60 Bytes let air packet
2383
			 * data satisfy 60 bytes), requiring
2384
			 * MTU >= 3 (packets) * 25 (size) - 3 (headers) = 72
2385
			 * see also Core spec 5, vol 4, B 2.1.1 & Table 2.1.
2386
			 */
2387
			if (btusb_find_altsetting(data, 6))
2388
				new_alts = 6;
2389
			else if (btusb_find_altsetting(data, 3) &&
2390
				 hdev->sco_mtu >= 72 &&
2391
				 test_bit(BTUSB_USE_ALT3_FOR_WBS, &data->flags))
2392
				new_alts = 3;
2393
			else
2394
				new_alts = 1;
2395
		}
2396

2397
		if (btusb_switch_alt_setting(hdev, new_alts) < 0)
2398
			bt_dev_err(hdev, "set USB alt:(%d) failed!", new_alts);
2399
	} else {
2400
		usb_kill_anchored_urbs(&data->isoc_anchor);
2401

2402
		if (test_and_clear_bit(BTUSB_ISOC_RUNNING, &data->flags))
2403
			__set_isoc_interface(hdev, 0);
2404

2405
		if (test_and_clear_bit(BTUSB_DID_ISO_RESUME, &data->flags))
2406
			usb_autopm_put_interface(data->isoc ? data->isoc : data->intf);
2407
	}
2408
}
2409

2410
static void btusb_waker(struct work_struct *work)
2411
{
2412
	struct btusb_data *data = container_of(work, struct btusb_data, waker);
2413
	int err;
2414

2415
	err = usb_autopm_get_interface(data->intf);
2416
	if (err < 0)
2417
		return;
2418

2419
	usb_autopm_put_interface(data->intf);
2420
}
2421

2422
static void btusb_rx_work(struct work_struct *work)
2423
{
2424
	struct btusb_data *data = container_of(work, struct btusb_data,
2425
					       rx_work.work);
2426
	struct sk_buff *skb;
2427

2428
	/* Dequeue ACL data received during the interval */
2429
	while ((skb = skb_dequeue(&data->acl_q)))
2430
		data->recv_acl(data->hdev, skb);
2431
}
2432

2433
static int btusb_setup_bcm92035(struct hci_dev *hdev)
2434
{
2435
	struct sk_buff *skb;
2436
	u8 val = 0x00;
2437

2438
	BT_DBG("%s", hdev->name);
2439

2440
	skb = __hci_cmd_sync(hdev, 0xfc3b, 1, &val, HCI_INIT_TIMEOUT);
2441
	if (IS_ERR(skb))
2442
		bt_dev_err(hdev, "BCM92035 command failed (%ld)", PTR_ERR(skb));
2443
	else
2444
		kfree_skb(skb);
2445

2446
	return 0;
2447
}
2448

2449
static int btusb_setup_csr(struct hci_dev *hdev)
2450
{
2451
	struct btusb_data *data = hci_get_drvdata(hdev);
2452
	u16 bcdDevice = le16_to_cpu(data->udev->descriptor.bcdDevice);
2453
	struct hci_rp_read_local_version *rp;
2454
	struct sk_buff *skb;
2455
	bool is_fake = false;
2456
	int ret;
2457

2458
	BT_DBG("%s", hdev->name);
2459

2460
	skb = __hci_cmd_sync(hdev, HCI_OP_READ_LOCAL_VERSION, 0, NULL,
2461
			     HCI_INIT_TIMEOUT);
2462
	if (IS_ERR(skb)) {
2463
		int err = PTR_ERR(skb);
2464
		bt_dev_err(hdev, "CSR: Local version failed (%d)", err);
2465
		return err;
2466
	}
2467

2468
	rp = skb_pull_data(skb, sizeof(*rp));
2469
	if (!rp) {
2470
		bt_dev_err(hdev, "CSR: Local version length mismatch");
2471
		kfree_skb(skb);
2472
		return -EIO;
2473
	}
2474

2475
	bt_dev_info(hdev, "CSR: Setting up dongle with HCI ver=%u rev=%04x",
2476
		    rp->hci_ver, le16_to_cpu(rp->hci_rev));
2477

2478
	bt_dev_info(hdev, "LMP ver=%u subver=%04x; manufacturer=%u",
2479
		    rp->lmp_ver, le16_to_cpu(rp->lmp_subver),
2480
		    le16_to_cpu(rp->manufacturer));
2481

2482
	/* Detect a wide host of Chinese controllers that aren't CSR.
2483
	 *
2484
	 * Known fake bcdDevices: 0x0100, 0x0134, 0x1915, 0x2520, 0x7558, 0x8891
2485
	 *
2486
	 * The main thing they have in common is that these are really popular low-cost
2487
	 * options that support newer Bluetooth versions but rely on heavy VID/PID
2488
	 * squatting of this poor old Bluetooth 1.1 device. Even sold as such.
2489
	 *
2490
	 * We detect actual CSR devices by checking that the HCI manufacturer code
2491
	 * is Cambridge Silicon Radio (10) and ensuring that LMP sub-version and
2492
	 * HCI rev values always match. As they both store the firmware number.
2493
	 */
2494
	if (le16_to_cpu(rp->manufacturer) != 10 ||
2495
	    le16_to_cpu(rp->hci_rev) != le16_to_cpu(rp->lmp_subver))
2496
		is_fake = true;
2497

2498
	/* Known legit CSR firmware build numbers and their supported BT versions:
2499
	 * - 1.1 (0x1) -> 0x0073, 0x020d, 0x033c, 0x034e
2500
	 * - 1.2 (0x2) ->                 0x04d9, 0x0529
2501
	 * - 2.0 (0x3) ->         0x07a6, 0x07ad, 0x0c5c
2502
	 * - 2.1 (0x4) ->         0x149c, 0x1735, 0x1899 (0x1899 is a BlueCore4-External)
2503
	 * - 4.0 (0x6) ->         0x1d86, 0x2031, 0x22bb
2504
	 *
2505
	 * e.g. Real CSR dongles with LMP subversion 0x73 are old enough that
2506
	 *      support BT 1.1 only; so it's a dead giveaway when some
2507
	 *      third-party BT 4.0 dongle reuses it.
2508
	 */
2509
	else if (le16_to_cpu(rp->lmp_subver) <= 0x034e &&
2510
		 rp->hci_ver > BLUETOOTH_VER_1_1)
2511
		is_fake = true;
2512

2513
	else if (le16_to_cpu(rp->lmp_subver) <= 0x0529 &&
2514
		 rp->hci_ver > BLUETOOTH_VER_1_2)
2515
		is_fake = true;
2516

2517
	else if (le16_to_cpu(rp->lmp_subver) <= 0x0c5c &&
2518
		 rp->hci_ver > BLUETOOTH_VER_2_0)
2519
		is_fake = true;
2520

2521
	else if (le16_to_cpu(rp->lmp_subver) <= 0x1899 &&
2522
		 rp->hci_ver > BLUETOOTH_VER_2_1)
2523
		is_fake = true;
2524

2525
	else if (le16_to_cpu(rp->lmp_subver) <= 0x22bb &&
2526
		 rp->hci_ver > BLUETOOTH_VER_4_0)
2527
		is_fake = true;
2528

2529
	/* Other clones which beat all the above checks */
2530
	else if (bcdDevice == 0x0134 &&
2531
		 le16_to_cpu(rp->lmp_subver) == 0x0c5c &&
2532
		 rp->hci_ver == BLUETOOTH_VER_2_0)
2533
		is_fake = true;
2534

2535
	if (is_fake) {
2536
		bt_dev_warn(hdev, "CSR: Unbranded CSR clone detected; adding workarounds and force-suspending once...");
2537

2538
		/* Generally these clones have big discrepancies between
2539
		 * advertised features and what's actually supported.
2540
		 * Probably will need to be expanded in the future;
2541
		 * without these the controller will lock up.
2542
		 */
2543
		hci_set_quirk(hdev, HCI_QUIRK_BROKEN_STORED_LINK_KEY);
2544
		hci_set_quirk(hdev, HCI_QUIRK_BROKEN_ERR_DATA_REPORTING);
2545
		hci_set_quirk(hdev, HCI_QUIRK_BROKEN_FILTER_CLEAR_ALL);
2546
		hci_set_quirk(hdev, HCI_QUIRK_NO_SUSPEND_NOTIFIER);
2547
		hci_set_quirk(hdev, HCI_QUIRK_BROKEN_READ_VOICE_SETTING);
2548
		hci_set_quirk(hdev, HCI_QUIRK_BROKEN_READ_PAGE_SCAN_TYPE);
2549

2550
		/* Clear the reset quirk since this is not an actual
2551
		 * early Bluetooth 1.1 device from CSR.
2552
		 */
2553
		hci_clear_quirk(hdev, HCI_QUIRK_RESET_ON_CLOSE);
2554
		hci_clear_quirk(hdev, HCI_QUIRK_SIMULTANEOUS_DISCOVERY);
2555

2556
		/*
2557
		 * Special workaround for these BT 4.0 chip clones, and potentially more:
2558
		 *
2559
		 * - 0x0134: a Barrot 8041a02                 (HCI rev: 0x0810 sub: 0x1012)
2560
		 * - 0x7558: IC markings FR3191AHAL 749H15143 (HCI rev/sub-version: 0x0709)
2561
		 *
2562
		 * These controllers are really messed-up.
2563
		 *
2564
		 * 1. Their bulk RX endpoint will never report any data unless
2565
		 *    the device was suspended at least once (yes, really).
2566
		 * 2. They will not wakeup when autosuspended and receiving data
2567
		 *    on their bulk RX endpoint from e.g. a keyboard or mouse
2568
		 *    (IOW remote-wakeup support is broken for the bulk endpoint).
2569
		 *
2570
		 * To fix 1. enable runtime-suspend, force-suspend the
2571
		 * HCI and then wake-it up by disabling runtime-suspend.
2572
		 *
2573
		 * To fix 2. clear the HCI's can_wake flag, this way the HCI
2574
		 * will still be autosuspended when it is not open.
2575
		 *
2576
		 * --
2577
		 *
2578
		 * Because these are widespread problems we prefer generic solutions; so
2579
		 * apply this initialization quirk to every controller that gets here,
2580
		 * it should be harmless. The alternative is to not work at all.
2581
		 */
2582
		pm_runtime_allow(&data->udev->dev);
2583

2584
		ret = pm_runtime_suspend(&data->udev->dev);
2585
		if (ret >= 0)
2586
			msleep(200);
2587
		else
2588
			bt_dev_warn(hdev, "CSR: Couldn't suspend the device for our Barrot 8041a02 receive-issue workaround");
2589

2590
		pm_runtime_forbid(&data->udev->dev);
2591

2592
		device_set_wakeup_capable(&data->udev->dev, false);
2593

2594
		/* Re-enable autosuspend if this was requested */
2595
		if (enable_autosuspend)
2596
			usb_enable_autosuspend(data->udev);
2597
	}
2598

2599
	kfree_skb(skb);
2600

2601
	return 0;
2602
}
2603

2604
static int inject_cmd_complete(struct hci_dev *hdev, __u16 opcode)
2605
{
2606
	struct sk_buff *skb;
2607
	struct hci_event_hdr *hdr;
2608
	struct hci_ev_cmd_complete *evt;
2609

2610
	skb = bt_skb_alloc(sizeof(*hdr) + sizeof(*evt) + 1, GFP_KERNEL);
2611
	if (!skb)
2612
		return -ENOMEM;
2613

2614
	hdr = skb_put(skb, sizeof(*hdr));
2615
	hdr->evt = HCI_EV_CMD_COMPLETE;
2616
	hdr->plen = sizeof(*evt) + 1;
2617

2618
	evt = skb_put(skb, sizeof(*evt));
2619
	evt->ncmd = 0x01;
2620
	evt->opcode = cpu_to_le16(opcode);
2621

2622
	skb_put_u8(skb, 0x00);
2623

2624
	hci_skb_pkt_type(skb) = HCI_EVENT_PKT;
2625

2626
	return hci_recv_frame(hdev, skb);
2627
}
2628

2629
static int btusb_recv_bulk_intel(struct btusb_data *data, void *buffer,
2630
				 int count)
2631
{
2632
	struct hci_dev *hdev = data->hdev;
2633

2634
	/* When the device is in bootloader mode, then it can send
2635
	 * events via the bulk endpoint. These events are treated the
2636
	 * same way as the ones received from the interrupt endpoint.
2637
	 */
2638
	if (btintel_test_flag(hdev, INTEL_BOOTLOADER))
2639
		return btusb_recv_intr(data, buffer, count);
2640

2641
	return btusb_recv_bulk(data, buffer, count);
2642
}
2643

2644
static int btusb_send_frame_intel(struct hci_dev *hdev, struct sk_buff *skb)
2645
{
2646
	struct urb *urb;
2647

2648
	BT_DBG("%s", hdev->name);
2649

2650
	switch (hci_skb_pkt_type(skb)) {
2651
	case HCI_COMMAND_PKT:
2652
		if (btintel_test_flag(hdev, INTEL_BOOTLOADER)) {
2653
			struct hci_command_hdr *cmd = (void *)skb->data;
2654
			__u16 opcode = le16_to_cpu(cmd->opcode);
2655

2656
			/* When in bootloader mode and the command 0xfc09
2657
			 * is received, it needs to be send down the
2658
			 * bulk endpoint. So allocate a bulk URB instead.
2659
			 */
2660
			if (opcode == 0xfc09)
2661
				urb = alloc_bulk_urb(hdev, skb);
2662
			else
2663
				urb = alloc_ctrl_urb(hdev, skb);
2664

2665
			/* When the BTINTEL_HCI_OP_RESET command is issued to
2666
			 * boot into the operational firmware, it will actually
2667
			 * not send a command complete event. To keep the flow
2668
			 * control working inject that event here.
2669
			 */
2670
			if (opcode == BTINTEL_HCI_OP_RESET)
2671
				inject_cmd_complete(hdev, opcode);
2672
		} else {
2673
			urb = alloc_ctrl_urb(hdev, skb);
2674
		}
2675
		if (IS_ERR(urb))
2676
			return PTR_ERR(urb);
2677

2678
		hdev->stat.cmd_tx++;
2679
		return submit_or_queue_tx_urb(hdev, urb);
2680

2681
	case HCI_ACLDATA_PKT:
2682
		urb = alloc_bulk_urb(hdev, skb);
2683
		if (IS_ERR(urb))
2684
			return PTR_ERR(urb);
2685

2686
		hdev->stat.acl_tx++;
2687
		return submit_or_queue_tx_urb(hdev, urb);
2688

2689
	case HCI_SCODATA_PKT:
2690
		if (!hci_dev_test_flag(hdev, HCI_USER_CHANNEL) &&
2691
		    hci_conn_num(hdev, SCO_LINK) < 1)
2692
			return -ENODEV;
2693

2694
		urb = alloc_isoc_urb(hdev, skb);
2695
		if (IS_ERR(urb))
2696
			return PTR_ERR(urb);
2697

2698
		hdev->stat.sco_tx++;
2699
		return submit_tx_urb(hdev, urb);
2700

2701
	case HCI_ISODATA_PKT:
2702
		urb = alloc_bulk_urb(hdev, skb);
2703
		if (IS_ERR(urb))
2704
			return PTR_ERR(urb);
2705

2706
		return submit_or_queue_tx_urb(hdev, urb);
2707
	}
2708

2709
	return -EILSEQ;
2710
}
2711

2712
static int btusb_setup_realtek(struct hci_dev *hdev)
2713
{
2714
	struct btusb_data *data = hci_get_drvdata(hdev);
2715
	int ret;
2716

2717
	ret = btrtl_setup_realtek(hdev);
2718

2719
	if (btrealtek_test_flag(data->hdev, REALTEK_ALT6_CONTINUOUS_TX_CHIP))
2720
		set_bit(BTUSB_ALT6_CONTINUOUS_TX, &data->flags);
2721

2722
	return ret;
2723
}
2724

2725
static int btusb_recv_event_realtek(struct hci_dev *hdev, struct sk_buff *skb)
2726
{
2727
	if (skb->data[0] == HCI_VENDOR_PKT && skb->data[2] == RTK_SUB_EVENT_CODE_COREDUMP) {
2728
		struct rtk_dev_coredump_hdr hdr = {
2729
			.code = RTK_DEVCOREDUMP_CODE_MEMDUMP,
2730
		};
2731

2732
		bt_dev_dbg(hdev, "RTL: received coredump vendor evt, len %u",
2733
			skb->len);
2734

2735
		btusb_rtl_alloc_devcoredump(hdev, &hdr, skb->data, skb->len);
2736
		kfree_skb(skb);
2737

2738
		return 0;
2739
	}
2740

2741
	return hci_recv_frame(hdev, skb);
2742
}
2743

2744
static void btusb_mtk_claim_iso_intf(struct btusb_data *data)
2745
{
2746
	struct btmtk_data *btmtk_data;
2747
	int err;
2748

2749
	if (!data->hdev)
2750
		return;
2751

2752
	btmtk_data = hci_get_priv(data->hdev);
2753
	if (!btmtk_data)
2754
		return;
2755

2756
	if (!btmtk_data->isopkt_intf) {
2757
		bt_dev_err(data->hdev, "Can't claim NULL iso interface");
2758
		return;
2759
	}
2760

2761
	/*
2762
	 * The function usb_driver_claim_interface() is documented to need
2763
	 * locks held if it's not called from a probe routine. The code here
2764
	 * is called from the hci_power_on workqueue, so grab the lock.
2765
	 */
2766
	device_lock(&btmtk_data->isopkt_intf->dev);
2767
	err = usb_driver_claim_interface(&btusb_driver,
2768
					 btmtk_data->isopkt_intf, data);
2769
	device_unlock(&btmtk_data->isopkt_intf->dev);
2770
	if (err < 0) {
2771
		btmtk_data->isopkt_intf = NULL;
2772
		bt_dev_err(data->hdev, "Failed to claim iso interface: %d", err);
2773
		return;
2774
	}
2775

2776
	set_bit(BTMTK_ISOPKT_OVER_INTR, &btmtk_data->flags);
2777
	init_usb_anchor(&btmtk_data->isopkt_anchor);
2778
}
2779

2780
static void btusb_mtk_release_iso_intf(struct hci_dev *hdev)
2781
{
2782
	struct btmtk_data *btmtk_data;
2783

2784
	if (!hdev)
2785
		return;
2786

2787
	btmtk_data = hci_get_priv(hdev);
2788
	if (!btmtk_data)
2789
		return;
2790

2791
	if (test_bit(BTMTK_ISOPKT_OVER_INTR, &btmtk_data->flags)) {
2792
		usb_kill_anchored_urbs(&btmtk_data->isopkt_anchor);
2793
		clear_bit(BTMTK_ISOPKT_RUNNING, &btmtk_data->flags);
2794

2795
		if (btmtk_data->isopkt_skb) {
2796
			dev_kfree_skb_irq(btmtk_data->isopkt_skb);
2797
			btmtk_data->isopkt_skb = NULL;
2798
		}
2799

2800
		if (btmtk_data->isopkt_intf) {
2801
			usb_set_intfdata(btmtk_data->isopkt_intf, NULL);
2802
			usb_driver_release_interface(&btusb_driver,
2803
						     btmtk_data->isopkt_intf);
2804
			btmtk_data->isopkt_intf = NULL;
2805
		}
2806
	}
2807

2808
	clear_bit(BTMTK_ISOPKT_OVER_INTR, &btmtk_data->flags);
2809
}
2810

2811
static int btusb_mtk_disconnect(struct hci_dev *hdev)
2812
{
2813
	/* This function describes the specific additional steps taken by MediaTek
2814
	 * when Bluetooth usb driver's resume function is called.
2815
	 */
2816
	btusb_mtk_release_iso_intf(hdev);
2817

2818
	return 0;
2819
}
2820

2821
static int btusb_mtk_reset(struct hci_dev *hdev, void *rst_data)
2822
{
2823
	struct btusb_data *data = hci_get_drvdata(hdev);
2824
	struct btmtk_data *btmtk_data = hci_get_priv(hdev);
2825
	int err;
2826

2827
	/* It's MediaTek specific bluetooth reset mechanism via USB */
2828
	if (test_and_set_bit(BTMTK_HW_RESET_ACTIVE, &btmtk_data->flags)) {
2829
		bt_dev_err(hdev, "last reset failed? Not resetting again");
2830
		return -EBUSY;
2831
	}
2832

2833
	err = usb_autopm_get_interface(data->intf);
2834
	if (err < 0)
2835
		return err;
2836

2837
	/* Release MediaTek ISO data interface */
2838
	btusb_mtk_release_iso_intf(hdev);
2839

2840
	btusb_stop_traffic(data);
2841
	usb_kill_anchored_urbs(&data->tx_anchor);
2842

2843
	/* Toggle the hard reset line. The MediaTek device is going to
2844
	 * yank itself off the USB and then replug. The cleanup is handled
2845
	 * correctly on the way out (standard USB disconnect), and the new
2846
	 * device is detected cleanly and bound to the driver again like
2847
	 * it should be.
2848
	 */
2849
	if (data->reset_gpio) {
2850
		gpiod_set_value_cansleep(data->reset_gpio, 1);
2851
		msleep(200);
2852
		gpiod_set_value_cansleep(data->reset_gpio, 0);
2853
		return 0;
2854
	}
2855

2856
	err = btmtk_usb_subsys_reset(hdev, btmtk_data->dev_id);
2857

2858
	usb_queue_reset_device(data->intf);
2859
	clear_bit(BTMTK_HW_RESET_ACTIVE, &btmtk_data->flags);
2860

2861
	return err;
2862
}
2863

2864
static int btusb_send_frame_mtk(struct hci_dev *hdev, struct sk_buff *skb)
2865
{
2866
	struct urb *urb;
2867

2868
	BT_DBG("%s", hdev->name);
2869

2870
	if (hci_skb_pkt_type(skb) == HCI_ISODATA_PKT) {
2871
		urb = alloc_mtk_intr_urb(hdev, skb, btusb_tx_complete);
2872
		if (IS_ERR(urb))
2873
			return PTR_ERR(urb);
2874

2875
		return submit_or_queue_tx_urb(hdev, urb);
2876
	} else {
2877
		return btusb_send_frame(hdev, skb);
2878
	}
2879
}
2880

2881
static int btusb_mtk_setup(struct hci_dev *hdev)
2882
{
2883
	struct btusb_data *data = hci_get_drvdata(hdev);
2884
	struct btmtk_data *btmtk_data = hci_get_priv(hdev);
2885

2886
	/* MediaTek WMT vendor cmd requiring below USB resources to
2887
	 * complete the handshake.
2888
	 */
2889
	btmtk_data->drv_name = btusb_driver.name;
2890
	btmtk_data->intf = data->intf;
2891
	btmtk_data->udev = data->udev;
2892
	btmtk_data->ctrl_anchor = &data->ctrl_anchor;
2893
	btmtk_data->reset_sync = btusb_mtk_reset;
2894

2895
	/* Claim ISO data interface and endpoint */
2896
	if (!test_bit(BTMTK_ISOPKT_OVER_INTR, &btmtk_data->flags)) {
2897
		btmtk_data->isopkt_intf = usb_ifnum_to_if(data->udev, MTK_ISO_IFNUM);
2898
		btusb_mtk_claim_iso_intf(data);
2899
	}
2900

2901
	return btmtk_usb_setup(hdev);
2902
}
2903

2904
static int btusb_mtk_shutdown(struct hci_dev *hdev)
2905
{
2906
	int ret;
2907

2908
	ret = btmtk_usb_shutdown(hdev);
2909

2910
	/* Release MediaTek iso interface after shutdown */
2911
	btusb_mtk_release_iso_intf(hdev);
2912

2913
	return ret;
2914
}
2915

2916
#ifdef CONFIG_PM
2917
/* Configure an out-of-band gpio as wake-up pin, if specified in device tree */
2918
static int marvell_config_oob_wake(struct hci_dev *hdev)
2919
{
2920
	struct sk_buff *skb;
2921
	struct btusb_data *data = hci_get_drvdata(hdev);
2922
	struct device *dev = &data->udev->dev;
2923
	u16 pin, gap, opcode;
2924
	int ret;
2925
	u8 cmd[5];
2926

2927
	/* Move on if no wakeup pin specified */
2928
	if (of_property_read_u16(dev->of_node, "marvell,wakeup-pin", &pin) ||
2929
	    of_property_read_u16(dev->of_node, "marvell,wakeup-gap-ms", &gap))
2930
		return 0;
2931

2932
	/* Vendor specific command to configure a GPIO as wake-up pin */
2933
	opcode = hci_opcode_pack(0x3F, 0x59);
2934
	cmd[0] = opcode & 0xFF;
2935
	cmd[1] = opcode >> 8;
2936
	cmd[2] = 2; /* length of parameters that follow */
2937
	cmd[3] = pin;
2938
	cmd[4] = gap; /* time in ms, for which wakeup pin should be asserted */
2939

2940
	skb = bt_skb_alloc(sizeof(cmd), GFP_KERNEL);
2941
	if (!skb) {
2942
		bt_dev_err(hdev, "%s: No memory", __func__);
2943
		return -ENOMEM;
2944
	}
2945

2946
	skb_put_data(skb, cmd, sizeof(cmd));
2947
	hci_skb_pkt_type(skb) = HCI_COMMAND_PKT;
2948

2949
	ret = btusb_send_frame(hdev, skb);
2950
	if (ret) {
2951
		bt_dev_err(hdev, "%s: configuration failed", __func__);
2952
		kfree_skb(skb);
2953
		return ret;
2954
	}
2955

2956
	return 0;
2957
}
2958
#endif
2959

2960
static int btusb_set_bdaddr_marvell(struct hci_dev *hdev,
2961
				    const bdaddr_t *bdaddr)
2962
{
2963
	struct sk_buff *skb;
2964
	u8 buf[8];
2965
	long ret;
2966

2967
	buf[0] = 0xfe;
2968
	buf[1] = sizeof(bdaddr_t);
2969
	memcpy(buf + 2, bdaddr, sizeof(bdaddr_t));
2970

2971
	skb = __hci_cmd_sync(hdev, 0xfc22, sizeof(buf), buf, HCI_INIT_TIMEOUT);
2972
	if (IS_ERR(skb)) {
2973
		ret = PTR_ERR(skb);
2974
		bt_dev_err(hdev, "changing Marvell device address failed (%ld)",
2975
			   ret);
2976
		return ret;
2977
	}
2978
	kfree_skb(skb);
2979

2980
	return 0;
2981
}
2982

2983
static int btusb_set_bdaddr_ath3012(struct hci_dev *hdev,
2984
				    const bdaddr_t *bdaddr)
2985
{
2986
	struct sk_buff *skb;
2987
	u8 buf[10];
2988
	long ret;
2989

2990
	buf[0] = 0x01;
2991
	buf[1] = 0x01;
2992
	buf[2] = 0x00;
2993
	buf[3] = sizeof(bdaddr_t);
2994
	memcpy(buf + 4, bdaddr, sizeof(bdaddr_t));
2995

2996
	skb = __hci_cmd_sync(hdev, 0xfc0b, sizeof(buf), buf, HCI_INIT_TIMEOUT);
2997
	if (IS_ERR(skb)) {
2998
		ret = PTR_ERR(skb);
2999
		bt_dev_err(hdev, "Change address command failed (%ld)", ret);
3000
		return ret;
3001
	}
3002
	kfree_skb(skb);
3003

3004
	return 0;
3005
}
3006

3007
static int btusb_set_bdaddr_wcn6855(struct hci_dev *hdev,
3008
				const bdaddr_t *bdaddr)
3009
{
3010
	struct sk_buff *skb;
3011
	u8 buf[6];
3012
	long ret;
3013

3014
	memcpy(buf, bdaddr, sizeof(bdaddr_t));
3015

3016
	skb = __hci_cmd_sync_ev(hdev, 0xfc14, sizeof(buf), buf,
3017
				HCI_EV_CMD_COMPLETE, HCI_INIT_TIMEOUT);
3018
	if (IS_ERR(skb)) {
3019
		ret = PTR_ERR(skb);
3020
		bt_dev_err(hdev, "Change address command failed (%ld)", ret);
3021
		return ret;
3022
	}
3023
	kfree_skb(skb);
3024

3025
	return 0;
3026
}
3027

3028
#define QCA_MEMDUMP_ACL_HANDLE 0x2EDD
3029
#define QCA_MEMDUMP_SIZE_MAX  0x100000
3030
#define QCA_MEMDUMP_VSE_CLASS 0x01
3031
#define QCA_MEMDUMP_MSG_TYPE 0x08
3032
#define QCA_MEMDUMP_PKT_SIZE 248
3033
#define QCA_LAST_SEQUENCE_NUM 0xffff
3034

3035
struct qca_dump_hdr {
3036
	u8 vse_class;
3037
	u8 msg_type;
3038
	__le16 seqno;
3039
	u8 reserved;
3040
	union {
3041
		u8 data[0];
3042
		struct {
3043
			__le32 ram_dump_size;
3044
			u8 data0[0];
3045
		} __packed;
3046
	};
3047
} __packed;
3048

3049

3050
static void btusb_dump_hdr_qca(struct hci_dev *hdev, struct sk_buff *skb)
3051
{
3052
	char buf[128];
3053
	struct btusb_data *btdata = hci_get_drvdata(hdev);
3054

3055
	snprintf(buf, sizeof(buf), "Controller Name: 0x%x\n",
3056
			btdata->qca_dump.controller_id);
3057
	skb_put_data(skb, buf, strlen(buf));
3058

3059
	snprintf(buf, sizeof(buf), "Firmware Version: 0x%x\n",
3060
			btdata->qca_dump.fw_version);
3061
	skb_put_data(skb, buf, strlen(buf));
3062

3063
	snprintf(buf, sizeof(buf), "Driver: %s\nVendor: qca\n",
3064
			btusb_driver.name);
3065
	skb_put_data(skb, buf, strlen(buf));
3066

3067
	snprintf(buf, sizeof(buf), "VID: 0x%x\nPID:0x%x\n",
3068
			btdata->qca_dump.id_vendor, btdata->qca_dump.id_product);
3069
	skb_put_data(skb, buf, strlen(buf));
3070

3071
	snprintf(buf, sizeof(buf), "Lmp Subversion: 0x%x\n",
3072
			hdev->lmp_subver);
3073
	skb_put_data(skb, buf, strlen(buf));
3074
}
3075

3076
static void btusb_coredump_qca(struct hci_dev *hdev)
3077
{
3078
	int err;
3079
	static const u8 param[] = { 0x26 };
3080

3081
	err = __hci_cmd_send(hdev, 0xfc0c, 1, param);
3082
	if (err < 0)
3083
		bt_dev_err(hdev, "%s: triggle crash failed (%d)", __func__, err);
3084
}
3085

3086
/* Return: 0 on success, negative errno on failure. */
3087
static int handle_dump_pkt_qca(struct hci_dev *hdev, struct sk_buff *skb)
3088
{
3089
	int ret = 0;
3090
	unsigned int skip = 0;
3091
	u8 pkt_type;
3092
	u16 seqno;
3093
	u32 dump_size;
3094

3095
	struct qca_dump_hdr *dump_hdr;
3096
	struct btusb_data *btdata = hci_get_drvdata(hdev);
3097
	struct usb_device *udev = btdata->udev;
3098

3099
	pkt_type = hci_skb_pkt_type(skb);
3100
	skip = sizeof(struct hci_event_hdr);
3101
	if (pkt_type == HCI_ACLDATA_PKT)
3102
		skip += sizeof(struct hci_acl_hdr);
3103

3104
	skb_pull(skb, skip);
3105
	dump_hdr = (struct qca_dump_hdr *)skb->data;
3106

3107
	seqno = le16_to_cpu(dump_hdr->seqno);
3108
	if (seqno == 0) {
3109
		set_bit(BTUSB_HW_SSR_ACTIVE, &btdata->flags);
3110
		dump_size = le32_to_cpu(dump_hdr->ram_dump_size);
3111
		if (!dump_size || (dump_size > QCA_MEMDUMP_SIZE_MAX)) {
3112
			ret = -EILSEQ;
3113
			bt_dev_err(hdev, "Invalid memdump size(%u)",
3114
				   dump_size);
3115
			goto out;
3116
		}
3117

3118
		ret = hci_devcd_init(hdev, dump_size);
3119
		if (ret < 0) {
3120
			bt_dev_err(hdev, "memdump init error(%d)", ret);
3121
			goto out;
3122
		}
3123

3124
		btdata->qca_dump.ram_dump_size = dump_size;
3125
		btdata->qca_dump.ram_dump_seqno = 0;
3126

3127
		skb_pull(skb, offsetof(struct qca_dump_hdr, data0));
3128

3129
		usb_disable_autosuspend(udev);
3130
		bt_dev_info(hdev, "%s memdump size(%u)\n",
3131
			    (pkt_type == HCI_ACLDATA_PKT) ? "ACL" : "event",
3132
			    dump_size);
3133
	} else {
3134
		skb_pull(skb, offsetof(struct qca_dump_hdr, data));
3135
	}
3136

3137
	if (!btdata->qca_dump.ram_dump_size) {
3138
		ret = -EINVAL;
3139
		bt_dev_err(hdev, "memdump is not active");
3140
		goto out;
3141
	}
3142

3143
	if ((seqno > btdata->qca_dump.ram_dump_seqno + 1) && (seqno != QCA_LAST_SEQUENCE_NUM)) {
3144
		dump_size = QCA_MEMDUMP_PKT_SIZE * (seqno - btdata->qca_dump.ram_dump_seqno - 1);
3145
		hci_devcd_append_pattern(hdev, 0x0, dump_size);
3146
		bt_dev_err(hdev,
3147
			   "expected memdump seqno(%u) is not received(%u)\n",
3148
			   btdata->qca_dump.ram_dump_seqno, seqno);
3149
		btdata->qca_dump.ram_dump_seqno = seqno;
3150
		kfree_skb(skb);
3151
		return ret;
3152
	}
3153

3154
	hci_devcd_append(hdev, skb);
3155
	btdata->qca_dump.ram_dump_seqno++;
3156
	if (seqno == QCA_LAST_SEQUENCE_NUM) {
3157
		bt_dev_info(hdev,
3158
				"memdump done: pkts(%u), total(%u)\n",
3159
				btdata->qca_dump.ram_dump_seqno, btdata->qca_dump.ram_dump_size);
3160

3161
		hci_devcd_complete(hdev);
3162
		goto out;
3163
	}
3164
	return ret;
3165

3166
out:
3167
	if (btdata->qca_dump.ram_dump_size)
3168
		usb_enable_autosuspend(udev);
3169
	btdata->qca_dump.ram_dump_size = 0;
3170
	btdata->qca_dump.ram_dump_seqno = 0;
3171
	clear_bit(BTUSB_HW_SSR_ACTIVE, &btdata->flags);
3172

3173
	if (ret < 0)
3174
		kfree_skb(skb);
3175
	return ret;
3176
}
3177

3178
/* Return: true if the ACL packet is a dump packet, false otherwise. */
3179
static bool acl_pkt_is_dump_qca(struct hci_dev *hdev, struct sk_buff *skb)
3180
{
3181
	struct hci_event_hdr *event_hdr;
3182
	struct hci_acl_hdr *acl_hdr;
3183
	struct qca_dump_hdr *dump_hdr;
3184
	struct sk_buff *clone = skb_clone(skb, GFP_ATOMIC);
3185
	bool is_dump = false;
3186

3187
	if (!clone)
3188
		return false;
3189

3190
	acl_hdr = skb_pull_data(clone, sizeof(*acl_hdr));
3191
	if (!acl_hdr || (le16_to_cpu(acl_hdr->handle) != QCA_MEMDUMP_ACL_HANDLE))
3192
		goto out;
3193

3194
	event_hdr = skb_pull_data(clone, sizeof(*event_hdr));
3195
	if (!event_hdr || (event_hdr->evt != HCI_VENDOR_PKT))
3196
		goto out;
3197

3198
	dump_hdr = skb_pull_data(clone, sizeof(*dump_hdr));
3199
	if (!dump_hdr || (dump_hdr->vse_class != QCA_MEMDUMP_VSE_CLASS) ||
3200
	   (dump_hdr->msg_type != QCA_MEMDUMP_MSG_TYPE))
3201
		goto out;
3202

3203
	is_dump = true;
3204
out:
3205
	consume_skb(clone);
3206
	return is_dump;
3207
}
3208

3209
/* Return: true if the event packet is a dump packet, false otherwise. */
3210
static bool evt_pkt_is_dump_qca(struct hci_dev *hdev, struct sk_buff *skb)
3211
{
3212
	struct hci_event_hdr *event_hdr;
3213
	struct qca_dump_hdr *dump_hdr;
3214
	struct sk_buff *clone = skb_clone(skb, GFP_ATOMIC);
3215
	bool is_dump = false;
3216

3217
	if (!clone)
3218
		return false;
3219

3220
	event_hdr = skb_pull_data(clone, sizeof(*event_hdr));
3221
	if (!event_hdr || (event_hdr->evt != HCI_VENDOR_PKT))
3222
		goto out;
3223

3224
	dump_hdr = skb_pull_data(clone, sizeof(*dump_hdr));
3225
	if (!dump_hdr || (dump_hdr->vse_class != QCA_MEMDUMP_VSE_CLASS) ||
3226
	   (dump_hdr->msg_type != QCA_MEMDUMP_MSG_TYPE))
3227
		goto out;
3228

3229
	is_dump = true;
3230
out:
3231
	consume_skb(clone);
3232
	return is_dump;
3233
}
3234

3235
static int btusb_recv_acl_qca(struct hci_dev *hdev, struct sk_buff *skb)
3236
{
3237
	if (acl_pkt_is_dump_qca(hdev, skb))
3238
		return handle_dump_pkt_qca(hdev, skb);
3239
	return hci_recv_frame(hdev, skb);
3240
}
3241

3242
static int btusb_recv_evt_qca(struct hci_dev *hdev, struct sk_buff *skb)
3243
{
3244
	if (evt_pkt_is_dump_qca(hdev, skb))
3245
		return handle_dump_pkt_qca(hdev, skb);
3246
	return hci_recv_frame(hdev, skb);
3247
}
3248

3249

3250
#define QCA_DFU_PACKET_LEN	4096
3251

3252
#define QCA_GET_TARGET_VERSION	0x09
3253
#define QCA_CHECK_STATUS	0x05
3254
#define QCA_DFU_DOWNLOAD	0x01
3255

3256
#define QCA_SYSCFG_UPDATED	0x40
3257
#define QCA_PATCH_UPDATED	0x80
3258
#define QCA_DFU_TIMEOUT		3000
3259
#define QCA_FLAG_MULTI_NVM      0x80
3260
#define QCA_BT_RESET_WAIT_MS    100
3261

3262
#define WCN6855_2_0_RAM_VERSION_GF 0x400c1200
3263
#define WCN6855_2_1_RAM_VERSION_GF 0x400c1211
3264

3265
struct qca_version {
3266
	__le32	rom_version;
3267
	__le32	patch_version;
3268
	__le32	ram_version;
3269
	__u8	chip_id;
3270
	__u8	platform_id;
3271
	__le16	flag;
3272
	__u8	reserved[4];
3273
} __packed;
3274

3275
struct qca_rampatch_version {
3276
	__le16	rom_version_high;
3277
	__le16  rom_version_low;
3278
	__le16	patch_version;
3279
} __packed;
3280

3281
struct qca_device_info {
3282
	u32	rom_version;
3283
	u8	rampatch_hdr;	/* length of header in rampatch */
3284
	u8	nvm_hdr;	/* length of header in NVM */
3285
	u8	ver_offset;	/* offset of version structure in rampatch */
3286
};
3287

3288
struct qca_custom_firmware {
3289
	u32 rom_version;
3290
	u16 board_id;
3291
	const char *subdirectory;
3292
};
3293

3294
static const struct qca_device_info qca_devices_table[] = {
3295
	{ 0x00000100, 20, 4,  8 }, /* Rome 1.0 */
3296
	{ 0x00000101, 20, 4,  8 }, /* Rome 1.1 */
3297
	{ 0x00000200, 28, 4, 16 }, /* Rome 2.0 */
3298
	{ 0x00000201, 28, 4, 16 }, /* Rome 2.1 */
3299
	{ 0x00000300, 28, 4, 16 }, /* Rome 3.0 */
3300
	{ 0x00000302, 28, 4, 16 }, /* Rome 3.2 */
3301
	{ 0x00130100, 40, 4, 16 }, /* WCN6855 1.0 */
3302
	{ 0x00130200, 40, 4, 16 }, /* WCN6855 2.0 */
3303
	{ 0x00130201, 40, 4, 16 }, /* WCN6855 2.1 */
3304
	{ 0x00190200, 40, 4, 16 }, /* WCN785x 2.0 */
3305
};
3306

3307
static const struct qca_custom_firmware qca_custom_btfws[] = {
3308
	{ 0x00130201, 0x030A, "QCA2066" },
3309
	{ 0x00130201, 0x030B, "QCA2066" },
3310
	{ },
3311
};
3312

3313
static u16 qca_extract_board_id(const struct qca_version *ver)
3314
{
3315
	u16 flag = le16_to_cpu(ver->flag);
3316
	u16 board_id = 0;
3317

3318
	if (((flag >> 8) & 0xff) == QCA_FLAG_MULTI_NVM) {
3319
		/* The board_id should be split into two bytes
3320
		 * The 1st byte is chip ID, and the 2nd byte is platform ID
3321
		 * For example, board ID 0x010A, 0x01 is platform ID. 0x0A is chip ID
3322
		 * we have several platforms, and platform IDs are continuously added
3323
		 * Platform ID:
3324
		 * 0x00 is for Mobile
3325
		 * 0x01 is for X86
3326
		 * 0x02 is for Automotive
3327
		 * 0x03 is for Consumer electronic
3328
		 */
3329
		board_id = (ver->chip_id << 8) + ver->platform_id;
3330
	}
3331

3332
	/* Take 0xffff as invalid board ID */
3333
	if (board_id == 0xffff)
3334
		board_id = 0;
3335

3336
	return board_id;
3337
}
3338

3339
static const char *qca_get_fw_subdirectory(const struct qca_version *ver)
3340
{
3341
	const struct qca_custom_firmware *ptr;
3342
	u32 rom_ver;
3343
	u16 board_id;
3344

3345
	rom_ver = le32_to_cpu(ver->rom_version);
3346
	board_id = qca_extract_board_id(ver);
3347
	if (!board_id)
3348
		return NULL;
3349

3350
	for (ptr = qca_custom_btfws; ptr->rom_version; ptr++) {
3351
		if (ptr->rom_version == rom_ver &&
3352
		    ptr->board_id == board_id)
3353
			return ptr->subdirectory;
3354
	}
3355

3356
	return NULL;
3357
}
3358

3359
static int btusb_qca_send_vendor_req(struct usb_device *udev, u8 request,
3360
				     void *data, u16 size)
3361
{
3362
	int pipe, err;
3363
	u8 *buf;
3364

3365
	buf = kmalloc(size, GFP_KERNEL);
3366
	if (!buf)
3367
		return -ENOMEM;
3368

3369
	/* Found some of USB hosts have IOT issues with ours so that we should
3370
	 * not wait until HCI layer is ready.
3371
	 */
3372
	pipe = usb_rcvctrlpipe(udev, 0);
3373
	err = usb_control_msg(udev, pipe, request, USB_TYPE_VENDOR | USB_DIR_IN,
3374
			      0, 0, buf, size, USB_CTRL_GET_TIMEOUT);
3375
	if (err < 0) {
3376
		dev_err(&udev->dev, "Failed to access otp area (%d)", err);
3377
		goto done;
3378
	}
3379

3380
	memcpy(data, buf, size);
3381

3382
done:
3383
	kfree(buf);
3384

3385
	return err;
3386
}
3387

3388
static int btusb_setup_qca_download_fw(struct hci_dev *hdev,
3389
				       const struct firmware *firmware,
3390
				       size_t hdr_size)
3391
{
3392
	struct btusb_data *btdata = hci_get_drvdata(hdev);
3393
	struct usb_device *udev = btdata->udev;
3394
	size_t count, size, sent = 0;
3395
	int pipe, len, err;
3396
	u8 *buf;
3397

3398
	buf = kmalloc(QCA_DFU_PACKET_LEN, GFP_KERNEL);
3399
	if (!buf)
3400
		return -ENOMEM;
3401

3402
	count = firmware->size;
3403

3404
	size = min_t(size_t, count, hdr_size);
3405
	memcpy(buf, firmware->data, size);
3406

3407
	/* USB patches should go down to controller through USB path
3408
	 * because binary format fits to go down through USB channel.
3409
	 * USB control path is for patching headers and USB bulk is for
3410
	 * patch body.
3411
	 */
3412
	pipe = usb_sndctrlpipe(udev, 0);
3413
	err = usb_control_msg(udev, pipe, QCA_DFU_DOWNLOAD, USB_TYPE_VENDOR,
3414
			      0, 0, buf, size, USB_CTRL_SET_TIMEOUT);
3415
	if (err < 0) {
3416
		bt_dev_err(hdev, "Failed to send headers (%d)", err);
3417
		goto done;
3418
	}
3419

3420
	sent += size;
3421
	count -= size;
3422

3423
	/* ep2 need time to switch from function acl to function dfu,
3424
	 * so we add 20ms delay here.
3425
	 */
3426
	msleep(20);
3427

3428
	while (count) {
3429
		size = min_t(size_t, count, QCA_DFU_PACKET_LEN);
3430

3431
		memcpy(buf, firmware->data + sent, size);
3432

3433
		pipe = usb_sndbulkpipe(udev, 0x02);
3434
		err = usb_bulk_msg(udev, pipe, buf, size, &len,
3435
				   QCA_DFU_TIMEOUT);
3436
		if (err < 0) {
3437
			bt_dev_err(hdev, "Failed to send body at %zd of %zd (%d)",
3438
				   sent, firmware->size, err);
3439
			break;
3440
		}
3441

3442
		if (size != len) {
3443
			bt_dev_err(hdev, "Failed to get bulk buffer");
3444
			err = -EILSEQ;
3445
			break;
3446
		}
3447

3448
		sent  += size;
3449
		count -= size;
3450
	}
3451

3452
done:
3453
	kfree(buf);
3454
	return err;
3455
}
3456

3457
static int btusb_setup_qca_load_rampatch(struct hci_dev *hdev,
3458
					 struct qca_version *ver,
3459
					 const struct qca_device_info *info)
3460
{
3461
	struct qca_rampatch_version *rver;
3462
	const struct firmware *fw;
3463
	const char *fw_subdir;
3464
	u32 ver_rom, ver_patch, rver_rom;
3465
	u16 rver_rom_low, rver_rom_high, rver_patch;
3466
	char fwname[80];
3467
	int err;
3468

3469
	ver_rom = le32_to_cpu(ver->rom_version);
3470
	ver_patch = le32_to_cpu(ver->patch_version);
3471

3472
	fw_subdir = qca_get_fw_subdirectory(ver);
3473
	if (fw_subdir)
3474
		snprintf(fwname, sizeof(fwname), "qca/%s/rampatch_usb_%08x.bin",
3475
			 fw_subdir, ver_rom);
3476
	else
3477
		snprintf(fwname, sizeof(fwname), "qca/rampatch_usb_%08x.bin",
3478
			 ver_rom);
3479

3480
	err = request_firmware(&fw, fwname, &hdev->dev);
3481
	if (err) {
3482
		bt_dev_err(hdev, "failed to request rampatch file: %s (%d)",
3483
			   fwname, err);
3484
		return err;
3485
	}
3486

3487
	bt_dev_info(hdev, "using rampatch file: %s", fwname);
3488

3489
	rver = (struct qca_rampatch_version *)(fw->data + info->ver_offset);
3490
	rver_rom_low = le16_to_cpu(rver->rom_version_low);
3491
	rver_patch = le16_to_cpu(rver->patch_version);
3492

3493
	if (ver_rom & ~0xffffU) {
3494
		rver_rom_high = le16_to_cpu(rver->rom_version_high);
3495
		rver_rom = rver_rom_high << 16 | rver_rom_low;
3496
	} else {
3497
		rver_rom = rver_rom_low;
3498
	}
3499

3500
	bt_dev_info(hdev, "QCA: patch rome 0x%x build 0x%x, "
3501
		    "firmware rome 0x%x build 0x%x",
3502
		    rver_rom, rver_patch, ver_rom, ver_patch);
3503

3504
	if (rver_rom != ver_rom || rver_patch <= ver_patch) {
3505
		bt_dev_err(hdev, "rampatch file version did not match with firmware");
3506
		err = -EINVAL;
3507
		goto done;
3508
	}
3509

3510
	err = btusb_setup_qca_download_fw(hdev, fw, info->rampatch_hdr);
3511

3512
done:
3513
	release_firmware(fw);
3514

3515
	return err;
3516
}
3517

3518
static void btusb_generate_qca_nvm_name(char *fwname, size_t max_size,
3519
					const struct qca_version *ver)
3520
{
3521
	u32 rom_version = le32_to_cpu(ver->rom_version);
3522
	const char *variant, *fw_subdir;
3523
	int len;
3524
	u16 board_id;
3525

3526
	fw_subdir = qca_get_fw_subdirectory(ver);
3527
	board_id = qca_extract_board_id(ver);
3528

3529
	switch (le32_to_cpu(ver->ram_version)) {
3530
	case WCN6855_2_0_RAM_VERSION_GF:
3531
	case WCN6855_2_1_RAM_VERSION_GF:
3532
		variant = "_gf";
3533
		break;
3534
	default:
3535
		variant = NULL;
3536
		break;
3537
	}
3538

3539
	if (fw_subdir)
3540
		len = snprintf(fwname, max_size, "qca/%s/nvm_usb_%08x",
3541
			       fw_subdir, rom_version);
3542
	else
3543
		len = snprintf(fwname, max_size, "qca/nvm_usb_%08x",
3544
			       rom_version);
3545
	if (variant)
3546
		len += snprintf(fwname + len, max_size - len, "%s", variant);
3547
	if (board_id)
3548
		len += snprintf(fwname + len, max_size - len, "_%04x", board_id);
3549
	len += snprintf(fwname + len, max_size - len, ".bin");
3550
}
3551

3552
static int btusb_setup_qca_load_nvm(struct hci_dev *hdev,
3553
				    struct qca_version *ver,
3554
				    const struct qca_device_info *info)
3555
{
3556
	const struct firmware *fw;
3557
	char fwname[80];
3558
	int err;
3559

3560
	btusb_generate_qca_nvm_name(fwname, sizeof(fwname), ver);
3561

3562
	err = request_firmware(&fw, fwname, &hdev->dev);
3563
	if (err) {
3564
		bt_dev_err(hdev, "failed to request NVM file: %s (%d)",
3565
			   fwname, err);
3566
		return err;
3567
	}
3568

3569
	bt_dev_info(hdev, "using NVM file: %s", fwname);
3570

3571
	err = btusb_setup_qca_download_fw(hdev, fw, info->nvm_hdr);
3572

3573
	release_firmware(fw);
3574

3575
	return err;
3576
}
3577

3578
/* identify the ROM version and check whether patches are needed */
3579
static bool btusb_qca_need_patch(struct usb_device *udev)
3580
{
3581
	struct qca_version ver;
3582

3583
	if (btusb_qca_send_vendor_req(udev, QCA_GET_TARGET_VERSION, &ver,
3584
				      sizeof(ver)) < 0)
3585
		return false;
3586
	/* only low ROM versions need patches */
3587
	return !(le32_to_cpu(ver.rom_version) & ~0xffffU);
3588
}
3589

3590
static int btusb_setup_qca(struct hci_dev *hdev)
3591
{
3592
	struct btusb_data *btdata = hci_get_drvdata(hdev);
3593
	struct usb_device *udev = btdata->udev;
3594
	const struct qca_device_info *info = NULL;
3595
	struct qca_version ver;
3596
	u32 ver_rom;
3597
	u8 status;
3598
	int i, err;
3599

3600
	err = btusb_qca_send_vendor_req(udev, QCA_GET_TARGET_VERSION, &ver,
3601
					sizeof(ver));
3602
	if (err < 0)
3603
		return err;
3604

3605
	ver_rom = le32_to_cpu(ver.rom_version);
3606

3607
	for (i = 0; i < ARRAY_SIZE(qca_devices_table); i++) {
3608
		if (ver_rom == qca_devices_table[i].rom_version)
3609
			info = &qca_devices_table[i];
3610
	}
3611
	if (!info) {
3612
		/* If the rom_version is not matched in the qca_devices_table
3613
		 * and the high ROM version is not zero, we assume this chip no
3614
		 * need to load the rampatch and nvm.
3615
		 */
3616
		if (ver_rom & ~0xffffU)
3617
			return 0;
3618

3619
		bt_dev_err(hdev, "don't support firmware rome 0x%x", ver_rom);
3620
		return -ENODEV;
3621
	}
3622

3623
	err = btusb_qca_send_vendor_req(udev, QCA_CHECK_STATUS, &status,
3624
					sizeof(status));
3625
	if (err < 0)
3626
		return err;
3627

3628
	if (!(status & QCA_PATCH_UPDATED)) {
3629
		err = btusb_setup_qca_load_rampatch(hdev, &ver, info);
3630
		if (err < 0)
3631
			return err;
3632
	}
3633

3634
	err = btusb_qca_send_vendor_req(udev, QCA_GET_TARGET_VERSION, &ver,
3635
					sizeof(ver));
3636
	if (err < 0)
3637
		return err;
3638

3639
	btdata->qca_dump.fw_version = le32_to_cpu(ver.patch_version);
3640
	btdata->qca_dump.controller_id = le32_to_cpu(ver.rom_version);
3641

3642
	if (!(status & QCA_SYSCFG_UPDATED)) {
3643
		err = btusb_setup_qca_load_nvm(hdev, &ver, info);
3644
		if (err < 0)
3645
			return err;
3646

3647
		/* WCN6855 2.1 and later will reset to apply firmware downloaded here, so
3648
		 * wait ~100ms for reset Done then go ahead, otherwise, it maybe
3649
		 * cause potential enable failure.
3650
		 */
3651
		if (info->rom_version >= 0x00130201)
3652
			msleep(QCA_BT_RESET_WAIT_MS);
3653
	}
3654

3655
	/* Mark HCI_OP_ENHANCED_SETUP_SYNC_CONN as broken as it doesn't seem to
3656
	 * work with the likes of HSP/HFP mSBC.
3657
	 */
3658
	hci_set_quirk(hdev, HCI_QUIRK_BROKEN_ENHANCED_SETUP_SYNC_CONN);
3659

3660
	return 0;
3661
}
3662

3663
static inline int __set_diag_interface(struct hci_dev *hdev)
3664
{
3665
	struct btusb_data *data = hci_get_drvdata(hdev);
3666
	struct usb_interface *intf = data->diag;
3667
	int i;
3668

3669
	if (!data->diag)
3670
		return -ENODEV;
3671

3672
	data->diag_tx_ep = NULL;
3673
	data->diag_rx_ep = NULL;
3674

3675
	for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
3676
		struct usb_endpoint_descriptor *ep_desc;
3677

3678
		ep_desc = &intf->cur_altsetting->endpoint[i].desc;
3679

3680
		if (!data->diag_tx_ep && usb_endpoint_is_bulk_out(ep_desc)) {
3681
			data->diag_tx_ep = ep_desc;
3682
			continue;
3683
		}
3684

3685
		if (!data->diag_rx_ep && usb_endpoint_is_bulk_in(ep_desc)) {
3686
			data->diag_rx_ep = ep_desc;
3687
			continue;
3688
		}
3689
	}
3690

3691
	if (!data->diag_tx_ep || !data->diag_rx_ep) {
3692
		bt_dev_err(hdev, "invalid diagnostic descriptors");
3693
		return -ENODEV;
3694
	}
3695

3696
	return 0;
3697
}
3698

3699
static struct urb *alloc_diag_urb(struct hci_dev *hdev, bool enable)
3700
{
3701
	struct btusb_data *data = hci_get_drvdata(hdev);
3702
	struct sk_buff *skb;
3703
	struct urb *urb;
3704
	unsigned int pipe;
3705

3706
	if (!data->diag_tx_ep)
3707
		return ERR_PTR(-ENODEV);
3708

3709
	urb = usb_alloc_urb(0, GFP_KERNEL);
3710
	if (!urb)
3711
		return ERR_PTR(-ENOMEM);
3712

3713
	skb = bt_skb_alloc(2, GFP_KERNEL);
3714
	if (!skb) {
3715
		usb_free_urb(urb);
3716
		return ERR_PTR(-ENOMEM);
3717
	}
3718

3719
	skb_put_u8(skb, 0xf0);
3720
	skb_put_u8(skb, enable);
3721

3722
	pipe = usb_sndbulkpipe(data->udev, data->diag_tx_ep->bEndpointAddress);
3723

3724
	usb_fill_bulk_urb(urb, data->udev, pipe,
3725
			  skb->data, skb->len, btusb_tx_complete, skb);
3726

3727
	skb->dev = (void *)hdev;
3728

3729
	return urb;
3730
}
3731

3732
static int btusb_bcm_set_diag(struct hci_dev *hdev, bool enable)
3733
{
3734
	struct btusb_data *data = hci_get_drvdata(hdev);
3735
	struct urb *urb;
3736

3737
	if (!data->diag)
3738
		return -ENODEV;
3739

3740
	if (!test_bit(HCI_RUNNING, &hdev->flags))
3741
		return -ENETDOWN;
3742

3743
	urb = alloc_diag_urb(hdev, enable);
3744
	if (IS_ERR(urb))
3745
		return PTR_ERR(urb);
3746

3747
	return submit_or_queue_tx_urb(hdev, urb);
3748
}
3749

3750
#ifdef CONFIG_PM
3751
static irqreturn_t btusb_oob_wake_handler(int irq, void *priv)
3752
{
3753
	struct btusb_data *data = priv;
3754

3755
	pm_wakeup_event(&data->udev->dev, 0);
3756
	pm_system_wakeup();
3757

3758
	/* Disable only if not already disabled (keep it balanced) */
3759
	if (test_and_clear_bit(BTUSB_OOB_WAKE_ENABLED, &data->flags)) {
3760
		disable_irq_nosync(irq);
3761
		disable_irq_wake(irq);
3762
	}
3763
	return IRQ_HANDLED;
3764
}
3765

3766
static const struct of_device_id btusb_match_table[] = {
3767
	{ .compatible = "usb1286,204e" },
3768
	{ .compatible = "usbcf3,e300" }, /* QCA6174A */
3769
	{ .compatible = "usb4ca,301a" }, /* QCA6174A (Lite-On) */
3770
	{ }
3771
};
3772
MODULE_DEVICE_TABLE(of, btusb_match_table);
3773

3774
/* Use an oob wakeup pin? */
3775
static int btusb_config_oob_wake(struct hci_dev *hdev)
3776
{
3777
	struct btusb_data *data = hci_get_drvdata(hdev);
3778
	struct device *dev = &data->udev->dev;
3779
	int irq, ret;
3780

3781
	clear_bit(BTUSB_OOB_WAKE_ENABLED, &data->flags);
3782

3783
	if (!of_match_device(btusb_match_table, dev))
3784
		return 0;
3785

3786
	/* Move on if no IRQ specified */
3787
	irq = of_irq_get_byname(dev->of_node, "wakeup");
3788
	if (irq <= 0) {
3789
		bt_dev_dbg(hdev, "%s: no OOB Wakeup IRQ in DT", __func__);
3790
		return 0;
3791
	}
3792

3793
	irq_set_status_flags(irq, IRQ_NOAUTOEN);
3794
	ret = devm_request_irq(&hdev->dev, irq, btusb_oob_wake_handler,
3795
			       0, "OOB Wake-on-BT", data);
3796
	if (ret) {
3797
		bt_dev_err(hdev, "%s: IRQ request failed", __func__);
3798
		return ret;
3799
	}
3800

3801
	ret = device_init_wakeup(dev, true);
3802
	if (ret) {
3803
		bt_dev_err(hdev, "%s: failed to init_wakeup", __func__);
3804
		return ret;
3805
	}
3806

3807
	data->oob_wake_irq = irq;
3808
	bt_dev_info(hdev, "OOB Wake-on-BT configured at IRQ %u", irq);
3809
	return 0;
3810
}
3811
#endif
3812

3813
static void btusb_check_needs_reset_resume(struct usb_interface *intf)
3814
{
3815
	if (dmi_check_system(btusb_needs_reset_resume_table))
3816
		interface_to_usbdev(intf)->quirks |= USB_QUIRK_RESET_RESUME;
3817
}
3818

3819
static bool btusb_wakeup(struct hci_dev *hdev)
3820
{
3821
	struct btusb_data *data = hci_get_drvdata(hdev);
3822

3823
	return device_may_wakeup(&data->udev->dev);
3824
}
3825

3826
static int btusb_shutdown_qca(struct hci_dev *hdev)
3827
{
3828
	struct sk_buff *skb;
3829

3830
	skb = __hci_cmd_sync(hdev, HCI_OP_RESET, 0, NULL, HCI_INIT_TIMEOUT);
3831
	if (IS_ERR(skb)) {
3832
		bt_dev_err(hdev, "HCI reset during shutdown failed");
3833
		return PTR_ERR(skb);
3834
	}
3835
	kfree_skb(skb);
3836

3837
	return 0;
3838
}
3839

3840
static ssize_t force_poll_sync_read(struct file *file, char __user *user_buf,
3841
				    size_t count, loff_t *ppos)
3842
{
3843
	struct btusb_data *data = file->private_data;
3844
	char buf[3];
3845

3846
	buf[0] = data->poll_sync ? 'Y' : 'N';
3847
	buf[1] = '\n';
3848
	buf[2] = '\0';
3849
	return simple_read_from_buffer(user_buf, count, ppos, buf, 2);
3850
}
3851

3852
static ssize_t force_poll_sync_write(struct file *file,
3853
				     const char __user *user_buf,
3854
				     size_t count, loff_t *ppos)
3855
{
3856
	struct btusb_data *data = file->private_data;
3857
	bool enable;
3858
	int err;
3859

3860
	err = kstrtobool_from_user(user_buf, count, &enable);
3861
	if (err)
3862
		return err;
3863

3864
	/* Only allow changes while the adapter is down */
3865
	if (test_bit(HCI_UP, &data->hdev->flags))
3866
		return -EPERM;
3867

3868
	if (data->poll_sync == enable)
3869
		return -EALREADY;
3870

3871
	data->poll_sync = enable;
3872

3873
	return count;
3874
}
3875

3876
static const struct file_operations force_poll_sync_fops = {
3877
	.owner		= THIS_MODULE,
3878
	.open		= simple_open,
3879
	.read		= force_poll_sync_read,
3880
	.write		= force_poll_sync_write,
3881
	.llseek		= default_llseek,
3882
};
3883

3884
#define BTUSB_HCI_DRV_OP_SUPPORTED_ALTSETTINGS \
3885
		hci_opcode_pack(HCI_DRV_OGF_DRIVER_SPECIFIC, 0x0000)
3886
#define BTUSB_HCI_DRV_SUPPORTED_ALTSETTINGS_SIZE	0
3887
struct btusb_hci_drv_rp_supported_altsettings {
3888
	__u8	num;
3889
	__u8	altsettings[];
3890
} __packed;
3891

3892
#define BTUSB_HCI_DRV_OP_SWITCH_ALTSETTING \
3893
		hci_opcode_pack(HCI_DRV_OGF_DRIVER_SPECIFIC, 0x0001)
3894
#define BTUSB_HCI_DRV_SWITCH_ALTSETTING_SIZE		1
3895
struct btusb_hci_drv_cmd_switch_altsetting {
3896
	__u8	altsetting;
3897
} __packed;
3898

3899
static const struct {
3900
	u16 opcode;
3901
	const char *desc;
3902
} btusb_hci_drv_supported_commands[] = {
3903
	/* Common commands */
3904
	{ HCI_DRV_OP_READ_INFO, "Read Info" },
3905

3906
	/* Driver specific commands */
3907
	{ BTUSB_HCI_DRV_OP_SUPPORTED_ALTSETTINGS, "Supported Altsettings" },
3908
	{ BTUSB_HCI_DRV_OP_SWITCH_ALTSETTING,     "Switch Altsetting" },
3909
};
3910
static int btusb_hci_drv_read_info(struct hci_dev *hdev, void *data,
3911
				   u16 data_len)
3912
{
3913
	struct hci_drv_rp_read_info *rp;
3914
	size_t rp_size;
3915
	int err, i;
3916
	u16 opcode, num_supported_commands =
3917
		ARRAY_SIZE(btusb_hci_drv_supported_commands);
3918

3919
	rp_size = sizeof(*rp) + num_supported_commands * 2;
3920

3921
	rp = kmalloc(rp_size, GFP_KERNEL);
3922
	if (!rp)
3923
		return -ENOMEM;
3924

3925
	strscpy_pad(rp->driver_name, btusb_driver.name);
3926

3927
	rp->num_supported_commands = cpu_to_le16(num_supported_commands);
3928
	for (i = 0; i < num_supported_commands; i++) {
3929
		opcode = btusb_hci_drv_supported_commands[i].opcode;
3930
		bt_dev_info(hdev,
3931
			    "Supported HCI Drv command (0x%02x|0x%04x): %s",
3932
			    hci_opcode_ogf(opcode),
3933
			    hci_opcode_ocf(opcode),
3934
			    btusb_hci_drv_supported_commands[i].desc);
3935
		rp->supported_commands[i] = cpu_to_le16(opcode);
3936
	}
3937

3938
	err = hci_drv_cmd_complete(hdev, HCI_DRV_OP_READ_INFO,
3939
				   HCI_DRV_STATUS_SUCCESS, rp, rp_size);
3940

3941
	kfree(rp);
3942
	return err;
3943
}
3944

3945
static int btusb_hci_drv_supported_altsettings(struct hci_dev *hdev, void *data,
3946
					       u16 data_len)
3947
{
3948
	struct btusb_data *drvdata = hci_get_drvdata(hdev);
3949
	struct btusb_hci_drv_rp_supported_altsettings *rp;
3950
	size_t rp_size;
3951
	int err;
3952
	u8 i;
3953

3954
	/* There are at most 7 alt (0 - 6) */
3955
	rp = kmalloc(sizeof(*rp) + 7, GFP_KERNEL);
3956
	if (!rp)
3957
		return -ENOMEM;
3958

3959
	rp->num = 0;
3960
	if (!drvdata->isoc)
3961
		goto done;
3962

3963
	for (i = 0; i <= 6; i++) {
3964
		if (btusb_find_altsetting(drvdata, i))
3965
			rp->altsettings[rp->num++] = i;
3966
	}
3967

3968
done:
3969
	rp_size = sizeof(*rp) + rp->num;
3970

3971
	err = hci_drv_cmd_complete(hdev, BTUSB_HCI_DRV_OP_SUPPORTED_ALTSETTINGS,
3972
				   HCI_DRV_STATUS_SUCCESS, rp, rp_size);
3973
	kfree(rp);
3974
	return err;
3975
}
3976

3977
static int btusb_hci_drv_switch_altsetting(struct hci_dev *hdev, void *data,
3978
					   u16 data_len)
3979
{
3980
	struct btusb_hci_drv_cmd_switch_altsetting *cmd = data;
3981
	u8 status;
3982

3983
	if (cmd->altsetting > 6) {
3984
		status = HCI_DRV_STATUS_INVALID_PARAMETERS;
3985
	} else {
3986
		if (btusb_switch_alt_setting(hdev, cmd->altsetting))
3987
			status = HCI_DRV_STATUS_UNSPECIFIED_ERROR;
3988
		else
3989
			status = HCI_DRV_STATUS_SUCCESS;
3990
	}
3991

3992
	return hci_drv_cmd_status(hdev, BTUSB_HCI_DRV_OP_SWITCH_ALTSETTING,
3993
				  status);
3994
}
3995

3996
static const struct hci_drv_handler btusb_hci_drv_common_handlers[] = {
3997
	{ btusb_hci_drv_read_info,	HCI_DRV_READ_INFO_SIZE },
3998
};
3999

4000
static const struct hci_drv_handler btusb_hci_drv_specific_handlers[] = {
4001
	{ btusb_hci_drv_supported_altsettings,
4002
				BTUSB_HCI_DRV_SUPPORTED_ALTSETTINGS_SIZE },
4003
	{ btusb_hci_drv_switch_altsetting,
4004
				BTUSB_HCI_DRV_SWITCH_ALTSETTING_SIZE },
4005
};
4006

4007
static struct hci_drv btusb_hci_drv = {
4008
	.common_handler_count	= ARRAY_SIZE(btusb_hci_drv_common_handlers),
4009
	.common_handlers	= btusb_hci_drv_common_handlers,
4010
	.specific_handler_count	= ARRAY_SIZE(btusb_hci_drv_specific_handlers),
4011
	.specific_handlers	= btusb_hci_drv_specific_handlers,
4012
};
4013

4014
static int btusb_probe(struct usb_interface *intf,
4015
		       const struct usb_device_id *id)
4016
{
4017
	struct usb_endpoint_descriptor *ep_desc;
4018
	struct gpio_desc *reset_gpio;
4019
	struct btusb_data *data;
4020
	struct hci_dev *hdev;
4021
	unsigned ifnum_base;
4022
	int i, err, priv_size;
4023

4024
	BT_DBG("intf %p id %p", intf, id);
4025

4026
	if ((id->driver_info & BTUSB_IFNUM_2) &&
4027
	    (intf->cur_altsetting->desc.bInterfaceNumber != 0) &&
4028
	    (intf->cur_altsetting->desc.bInterfaceNumber != 2))
4029
		return -ENODEV;
4030

4031
	ifnum_base = intf->cur_altsetting->desc.bInterfaceNumber;
4032

4033
	if (!id->driver_info) {
4034
		const struct usb_device_id *match;
4035

4036
		match = usb_match_id(intf, quirks_table);
4037
		if (match)
4038
			id = match;
4039
	}
4040

4041
	if (id->driver_info == BTUSB_IGNORE)
4042
		return -ENODEV;
4043

4044
	if (id->driver_info & BTUSB_ATH3012) {
4045
		struct usb_device *udev = interface_to_usbdev(intf);
4046

4047
		/* Old firmware would otherwise let ath3k driver load
4048
		 * patch and sysconfig files
4049
		 */
4050
		if (le16_to_cpu(udev->descriptor.bcdDevice) <= 0x0001 &&
4051
		    !btusb_qca_need_patch(udev))
4052
			return -ENODEV;
4053
	}
4054

4055
	data = kzalloc(sizeof(*data), GFP_KERNEL);
4056
	if (!data)
4057
		return -ENOMEM;
4058

4059
	for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
4060
		ep_desc = &intf->cur_altsetting->endpoint[i].desc;
4061

4062
		if (!data->intr_ep && usb_endpoint_is_int_in(ep_desc)) {
4063
			data->intr_ep = ep_desc;
4064
			continue;
4065
		}
4066

4067
		if (!data->bulk_tx_ep && usb_endpoint_is_bulk_out(ep_desc)) {
4068
			data->bulk_tx_ep = ep_desc;
4069
			continue;
4070
		}
4071

4072
		if (!data->bulk_rx_ep && usb_endpoint_is_bulk_in(ep_desc)) {
4073
			data->bulk_rx_ep = ep_desc;
4074
			continue;
4075
		}
4076
	}
4077

4078
	if (!data->intr_ep || !data->bulk_tx_ep || !data->bulk_rx_ep) {
4079
		kfree(data);
4080
		return -ENODEV;
4081
	}
4082

4083
	if (id->driver_info & BTUSB_AMP) {
4084
		data->cmdreq_type = USB_TYPE_CLASS | 0x01;
4085
		data->cmdreq = 0x2b;
4086
	} else {
4087
		data->cmdreq_type = USB_TYPE_CLASS;
4088
		data->cmdreq = 0x00;
4089
	}
4090

4091
	data->udev = interface_to_usbdev(intf);
4092
	data->intf = intf;
4093

4094
	INIT_WORK(&data->work, btusb_work);
4095
	INIT_WORK(&data->waker, btusb_waker);
4096
	INIT_DELAYED_WORK(&data->rx_work, btusb_rx_work);
4097

4098
	skb_queue_head_init(&data->acl_q);
4099

4100
	init_usb_anchor(&data->deferred);
4101
	init_usb_anchor(&data->tx_anchor);
4102
	spin_lock_init(&data->txlock);
4103

4104
	init_usb_anchor(&data->intr_anchor);
4105
	init_usb_anchor(&data->bulk_anchor);
4106
	init_usb_anchor(&data->isoc_anchor);
4107
	init_usb_anchor(&data->diag_anchor);
4108
	init_usb_anchor(&data->ctrl_anchor);
4109
	spin_lock_init(&data->rxlock);
4110

4111
	priv_size = 0;
4112

4113
	data->recv_event = hci_recv_frame;
4114
	data->recv_bulk = btusb_recv_bulk;
4115

4116
	if (id->driver_info & BTUSB_INTEL_COMBINED) {
4117
		/* Allocate extra space for Intel device */
4118
		priv_size += sizeof(struct btintel_data);
4119

4120
		/* Override the rx handlers */
4121
		data->recv_event = btintel_recv_event;
4122
		data->recv_bulk = btusb_recv_bulk_intel;
4123
	} else if (id->driver_info & BTUSB_REALTEK) {
4124
		/* Allocate extra space for Realtek device */
4125
		priv_size += sizeof(struct btrealtek_data);
4126

4127
		data->recv_event = btusb_recv_event_realtek;
4128
	} else if (id->driver_info & BTUSB_MEDIATEK) {
4129
		/* Allocate extra space for Mediatek device */
4130
		priv_size += sizeof(struct btmtk_data);
4131
	}
4132

4133
	data->recv_acl = hci_recv_frame;
4134

4135
	hdev = hci_alloc_dev_priv(priv_size);
4136
	if (!hdev) {
4137
		kfree(data);
4138
		return -ENOMEM;
4139
	}
4140

4141
	hdev->bus = HCI_USB;
4142
	hci_set_drvdata(hdev, data);
4143

4144
	data->hdev = hdev;
4145

4146
	SET_HCIDEV_DEV(hdev, &intf->dev);
4147

4148
	reset_gpio = gpiod_get_optional(&data->udev->dev, "reset",
4149
					GPIOD_OUT_LOW);
4150
	if (IS_ERR(reset_gpio)) {
4151
		err = PTR_ERR(reset_gpio);
4152
		goto out_free_dev;
4153
	} else if (reset_gpio) {
4154
		data->reset_gpio = reset_gpio;
4155
	}
4156

4157
	hdev->open    = btusb_open;
4158
	hdev->close   = btusb_close;
4159
	hdev->flush   = btusb_flush;
4160
	hdev->send    = btusb_send_frame;
4161
	hdev->notify  = btusb_notify;
4162
	hdev->wakeup  = btusb_wakeup;
4163
	hdev->hci_drv = &btusb_hci_drv;
4164

4165
#ifdef CONFIG_PM
4166
	err = btusb_config_oob_wake(hdev);
4167
	if (err)
4168
		goto out_free_dev;
4169

4170
	/* Marvell devices may need a specific chip configuration */
4171
	if (id->driver_info & BTUSB_MARVELL && data->oob_wake_irq) {
4172
		err = marvell_config_oob_wake(hdev);
4173
		if (err)
4174
			goto out_free_dev;
4175
	}
4176
#endif
4177
	if (id->driver_info & BTUSB_CW6622)
4178
		hci_set_quirk(hdev, HCI_QUIRK_BROKEN_STORED_LINK_KEY);
4179

4180
	if (id->driver_info & BTUSB_BCM2045)
4181
		hci_set_quirk(hdev, HCI_QUIRK_BROKEN_STORED_LINK_KEY);
4182

4183
	if (id->driver_info & BTUSB_BCM92035)
4184
		hdev->setup = btusb_setup_bcm92035;
4185

4186
	if (IS_ENABLED(CONFIG_BT_HCIBTUSB_BCM) &&
4187
	    (id->driver_info & BTUSB_BCM_PATCHRAM)) {
4188
		hdev->manufacturer = 15;
4189
		hdev->setup = btbcm_setup_patchram;
4190
		hdev->set_diag = btusb_bcm_set_diag;
4191
		hdev->set_bdaddr = btbcm_set_bdaddr;
4192

4193
		/* Broadcom LM_DIAG Interface numbers are hardcoded */
4194
		data->diag = usb_ifnum_to_if(data->udev, ifnum_base + 2);
4195
	}
4196

4197
	if (IS_ENABLED(CONFIG_BT_HCIBTUSB_BCM) &&
4198
	    (id->driver_info & BTUSB_BCM_APPLE)) {
4199
		hdev->manufacturer = 15;
4200
		hdev->setup = btbcm_setup_apple;
4201
		hdev->set_diag = btusb_bcm_set_diag;
4202

4203
		/* Broadcom LM_DIAG Interface numbers are hardcoded */
4204
		data->diag = usb_ifnum_to_if(data->udev, ifnum_base + 2);
4205
	}
4206

4207
	/* Combined Intel Device setup to support multiple setup routine */
4208
	if (id->driver_info & BTUSB_INTEL_COMBINED) {
4209
		err = btintel_configure_setup(hdev, btusb_driver.name);
4210
		if (err)
4211
			goto out_free_dev;
4212

4213
		/* Transport specific configuration */
4214
		hdev->send = btusb_send_frame_intel;
4215
		hdev->reset = btusb_intel_reset;
4216

4217
		if (id->driver_info & BTUSB_INTEL_NO_WBS_SUPPORT)
4218
			btintel_set_flag(hdev, INTEL_ROM_LEGACY_NO_WBS_SUPPORT);
4219

4220
		if (id->driver_info & BTUSB_INTEL_BROKEN_INITIAL_NCMD)
4221
			btintel_set_flag(hdev, INTEL_BROKEN_INITIAL_NCMD);
4222

4223
		if (id->driver_info & BTUSB_INTEL_BROKEN_SHUTDOWN_LED)
4224
			btintel_set_flag(hdev, INTEL_BROKEN_SHUTDOWN_LED);
4225
	}
4226

4227
	if (id->driver_info & BTUSB_MARVELL)
4228
		hdev->set_bdaddr = btusb_set_bdaddr_marvell;
4229

4230
	if (IS_ENABLED(CONFIG_BT_HCIBTUSB_MTK) &&
4231
	    (id->driver_info & BTUSB_MEDIATEK)) {
4232
		hdev->setup = btusb_mtk_setup;
4233
		hdev->shutdown = btusb_mtk_shutdown;
4234
		hdev->manufacturer = 70;
4235
		hdev->reset = btmtk_reset_sync;
4236
		hdev->set_bdaddr = btmtk_set_bdaddr;
4237
		hdev->send = btusb_send_frame_mtk;
4238
		hci_set_quirk(hdev, HCI_QUIRK_BROKEN_ENHANCED_SETUP_SYNC_CONN);
4239
		hci_set_quirk(hdev, HCI_QUIRK_NON_PERSISTENT_SETUP);
4240
		data->recv_acl = btmtk_usb_recv_acl;
4241
		data->suspend = btmtk_usb_suspend;
4242
		data->resume = btmtk_usb_resume;
4243
		data->disconnect = btusb_mtk_disconnect;
4244
	}
4245

4246
	if (id->driver_info & BTUSB_SWAVE) {
4247
		hci_set_quirk(hdev, HCI_QUIRK_FIXUP_INQUIRY_MODE);
4248
		hci_set_quirk(hdev, HCI_QUIRK_BROKEN_LOCAL_COMMANDS);
4249
	}
4250

4251
	if (id->driver_info & BTUSB_INTEL_BOOT) {
4252
		hdev->manufacturer = 2;
4253
		hci_set_quirk(hdev, HCI_QUIRK_RAW_DEVICE);
4254
	}
4255

4256
	if (id->driver_info & BTUSB_ATH3012) {
4257
		data->setup_on_usb = btusb_setup_qca;
4258
		hdev->set_bdaddr = btusb_set_bdaddr_ath3012;
4259
		hci_set_quirk(hdev, HCI_QUIRK_SIMULTANEOUS_DISCOVERY);
4260
		hci_set_quirk(hdev, HCI_QUIRK_STRICT_DUPLICATE_FILTER);
4261
	}
4262

4263
	if (id->driver_info & BTUSB_QCA_ROME) {
4264
		data->setup_on_usb = btusb_setup_qca;
4265
		hdev->shutdown = btusb_shutdown_qca;
4266
		hdev->set_bdaddr = btusb_set_bdaddr_ath3012;
4267
		hdev->reset = btusb_qca_reset;
4268
		hci_set_quirk(hdev, HCI_QUIRK_SIMULTANEOUS_DISCOVERY);
4269
		btusb_check_needs_reset_resume(intf);
4270
	}
4271

4272
	if (id->driver_info & BTUSB_QCA_WCN6855) {
4273
		data->qca_dump.id_vendor = id->idVendor;
4274
		data->qca_dump.id_product = id->idProduct;
4275
		data->recv_event = btusb_recv_evt_qca;
4276
		data->recv_acl = btusb_recv_acl_qca;
4277
		hci_devcd_register(hdev, btusb_coredump_qca, btusb_dump_hdr_qca, NULL);
4278
		data->setup_on_usb = btusb_setup_qca;
4279
		hdev->classify_pkt_type = btusb_classify_qca_pkt_type;
4280
		hdev->shutdown = btusb_shutdown_qca;
4281
		hdev->set_bdaddr = btusb_set_bdaddr_wcn6855;
4282
		hdev->reset = btusb_qca_reset;
4283
		hci_set_quirk(hdev, HCI_QUIRK_SIMULTANEOUS_DISCOVERY);
4284
		hci_set_msft_opcode(hdev, 0xFD70);
4285
	}
4286

4287
	if (id->driver_info & BTUSB_AMP) {
4288
		/* AMP controllers do not support SCO packets */
4289
		data->isoc = NULL;
4290
	} else {
4291
		/* Interface orders are hardcoded in the specification */
4292
		data->isoc = usb_ifnum_to_if(data->udev, ifnum_base + 1);
4293
		data->isoc_ifnum = ifnum_base + 1;
4294
	}
4295

4296
	if (IS_ENABLED(CONFIG_BT_HCIBTUSB_RTL) &&
4297
	    (id->driver_info & BTUSB_REALTEK)) {
4298
		btrtl_set_driver_name(hdev, btusb_driver.name);
4299
		hdev->setup = btusb_setup_realtek;
4300
		hdev->shutdown = btrtl_shutdown_realtek;
4301
		hdev->reset = btusb_rtl_reset;
4302
		hdev->hw_error = btusb_rtl_hw_error;
4303

4304
		/* Realtek devices need to set remote wakeup on auto-suspend */
4305
		set_bit(BTUSB_WAKEUP_AUTOSUSPEND, &data->flags);
4306
		set_bit(BTUSB_USE_ALT3_FOR_WBS, &data->flags);
4307
	}
4308

4309
	if (id->driver_info & BTUSB_ACTIONS_SEMI) {
4310
		/* Support is advertised, but not implemented */
4311
		hci_set_quirk(hdev, HCI_QUIRK_BROKEN_ERR_DATA_REPORTING);
4312
		hci_set_quirk(hdev, HCI_QUIRK_BROKEN_READ_TRANSMIT_POWER);
4313
		hci_set_quirk(hdev, HCI_QUIRK_BROKEN_SET_RPA_TIMEOUT);
4314
		hci_set_quirk(hdev, HCI_QUIRK_BROKEN_EXT_SCAN);
4315
		hci_set_quirk(hdev, HCI_QUIRK_BROKEN_READ_ENC_KEY_SIZE);
4316
		hci_set_quirk(hdev, HCI_QUIRK_BROKEN_EXT_CREATE_CONN);
4317
		hci_set_quirk(hdev, HCI_QUIRK_BROKEN_WRITE_AUTH_PAYLOAD_TIMEOUT);
4318
	}
4319

4320
	if (!reset)
4321
		hci_set_quirk(hdev, HCI_QUIRK_RESET_ON_CLOSE);
4322

4323
	if (force_scofix || id->driver_info & BTUSB_WRONG_SCO_MTU) {
4324
		if (!disable_scofix)
4325
			hci_set_quirk(hdev, HCI_QUIRK_FIXUP_BUFFER_SIZE);
4326
	}
4327

4328
	if (id->driver_info & BTUSB_BROKEN_ISOC)
4329
		data->isoc = NULL;
4330

4331
	if (id->driver_info & BTUSB_WIDEBAND_SPEECH)
4332
		hci_set_quirk(hdev, HCI_QUIRK_WIDEBAND_SPEECH_SUPPORTED);
4333

4334
	if (id->driver_info & BTUSB_INVALID_LE_STATES)
4335
		hci_set_quirk(hdev, HCI_QUIRK_BROKEN_LE_STATES);
4336

4337
	if (id->driver_info & BTUSB_DIGIANSWER) {
4338
		data->cmdreq_type = USB_TYPE_VENDOR;
4339
		hci_set_quirk(hdev, HCI_QUIRK_RESET_ON_CLOSE);
4340
	}
4341

4342
	if (id->driver_info & BTUSB_CSR) {
4343
		struct usb_device *udev = data->udev;
4344
		u16 bcdDevice = le16_to_cpu(udev->descriptor.bcdDevice);
4345

4346
		/* Old firmware would otherwise execute USB reset */
4347
		if (bcdDevice < 0x117)
4348
			hci_set_quirk(hdev, HCI_QUIRK_RESET_ON_CLOSE);
4349

4350
		/* This must be set first in case we disable it for fakes */
4351
		hci_set_quirk(hdev, HCI_QUIRK_SIMULTANEOUS_DISCOVERY);
4352

4353
		/* Fake CSR devices with broken commands */
4354
		if (le16_to_cpu(udev->descriptor.idVendor)  == 0x0a12 &&
4355
		    le16_to_cpu(udev->descriptor.idProduct) == 0x0001)
4356
			hdev->setup = btusb_setup_csr;
4357
	}
4358

4359
	if (id->driver_info & BTUSB_SNIFFER) {
4360
		struct usb_device *udev = data->udev;
4361

4362
		/* New sniffer firmware has crippled HCI interface */
4363
		if (le16_to_cpu(udev->descriptor.bcdDevice) > 0x997)
4364
			hci_set_quirk(hdev, HCI_QUIRK_RAW_DEVICE);
4365
	}
4366

4367
	if (id->driver_info & BTUSB_INTEL_BOOT) {
4368
		/* A bug in the bootloader causes that interrupt interface is
4369
		 * only enabled after receiving SetInterface(0, AltSetting=0).
4370
		 */
4371
		err = usb_set_interface(data->udev, 0, 0);
4372
		if (err < 0) {
4373
			BT_ERR("failed to set interface 0, alt 0 %d", err);
4374
			goto out_free_dev;
4375
		}
4376
	}
4377

4378
	if (data->isoc) {
4379
		err = usb_driver_claim_interface(&btusb_driver,
4380
						 data->isoc, data);
4381
		if (err < 0)
4382
			goto out_free_dev;
4383
	}
4384

4385
	if (IS_ENABLED(CONFIG_BT_HCIBTUSB_BCM) && data->diag) {
4386
		if (!usb_driver_claim_interface(&btusb_driver,
4387
						data->diag, data))
4388
			__set_diag_interface(hdev);
4389
		else
4390
			data->diag = NULL;
4391
	}
4392

4393
	if (enable_autosuspend)
4394
		usb_enable_autosuspend(data->udev);
4395

4396
	data->poll_sync = enable_poll_sync;
4397

4398
	err = hci_register_dev(hdev);
4399
	if (err < 0)
4400
		goto out_free_dev;
4401

4402
	usb_set_intfdata(intf, data);
4403

4404
	debugfs_create_file("force_poll_sync", 0644, hdev->debugfs, data,
4405
			    &force_poll_sync_fops);
4406

4407
	return 0;
4408

4409
out_free_dev:
4410
	if (data->reset_gpio)
4411
		gpiod_put(data->reset_gpio);
4412
	hci_free_dev(hdev);
4413
	kfree(data);
4414
	return err;
4415
}
4416

4417
static void btusb_disconnect(struct usb_interface *intf)
4418
{
4419
	struct btusb_data *data = usb_get_intfdata(intf);
4420
	struct hci_dev *hdev;
4421

4422
	BT_DBG("intf %p", intf);
4423

4424
	if (!data)
4425
		return;
4426

4427
	hdev = data->hdev;
4428
	usb_set_intfdata(data->intf, NULL);
4429

4430
	if (data->isoc)
4431
		usb_set_intfdata(data->isoc, NULL);
4432

4433
	if (data->diag)
4434
		usb_set_intfdata(data->diag, NULL);
4435

4436
	if (data->disconnect)
4437
		data->disconnect(hdev);
4438

4439
	hci_unregister_dev(hdev);
4440

4441
	if (data->oob_wake_irq)
4442
		device_init_wakeup(&data->udev->dev, false);
4443
	if (data->reset_gpio)
4444
		gpiod_put(data->reset_gpio);
4445

4446
	if (intf == data->intf) {
4447
		if (data->isoc)
4448
			usb_driver_release_interface(&btusb_driver, data->isoc);
4449
		if (data->diag)
4450
			usb_driver_release_interface(&btusb_driver, data->diag);
4451
	} else if (intf == data->isoc) {
4452
		if (data->diag)
4453
			usb_driver_release_interface(&btusb_driver, data->diag);
4454
		usb_driver_release_interface(&btusb_driver, data->intf);
4455
	} else if (intf == data->diag) {
4456
		if (data->isoc)
4457
			usb_driver_release_interface(&btusb_driver, data->isoc);
4458
		usb_driver_release_interface(&btusb_driver, data->intf);
4459
	}
4460

4461
	hci_free_dev(hdev);
4462
	kfree(data);
4463
}
4464

4465
#ifdef CONFIG_PM
4466
static int btusb_suspend(struct usb_interface *intf, pm_message_t message)
4467
{
4468
	struct btusb_data *data = usb_get_intfdata(intf);
4469

4470
	BT_DBG("intf %p", intf);
4471

4472
	/* Don't auto-suspend if there are connections; external suspend calls
4473
	 * shall never fail.
4474
	 */
4475
	if (PMSG_IS_AUTO(message) && hci_conn_count(data->hdev))
4476
		return -EBUSY;
4477

4478
	if (data->suspend_count++)
4479
		return 0;
4480

4481
	spin_lock_irq(&data->txlock);
4482
	if (!(PMSG_IS_AUTO(message) && data->tx_in_flight)) {
4483
		set_bit(BTUSB_SUSPENDING, &data->flags);
4484
		spin_unlock_irq(&data->txlock);
4485
	} else {
4486
		spin_unlock_irq(&data->txlock);
4487
		data->suspend_count--;
4488
		return -EBUSY;
4489
	}
4490

4491
	cancel_work_sync(&data->work);
4492

4493
	if (data->suspend)
4494
		data->suspend(data->hdev);
4495

4496
	btusb_stop_traffic(data);
4497
	usb_kill_anchored_urbs(&data->tx_anchor);
4498

4499
	if (data->oob_wake_irq && device_may_wakeup(&data->udev->dev)) {
4500
		set_bit(BTUSB_OOB_WAKE_ENABLED, &data->flags);
4501
		enable_irq_wake(data->oob_wake_irq);
4502
		enable_irq(data->oob_wake_irq);
4503
	}
4504

4505
	/* For global suspend, Realtek devices lose the loaded fw
4506
	 * in them. But for autosuspend, firmware should remain.
4507
	 * Actually, it depends on whether the usb host sends
4508
	 * set feature (enable wakeup) or not.
4509
	 */
4510
	if (test_bit(BTUSB_WAKEUP_AUTOSUSPEND, &data->flags)) {
4511
		if (PMSG_IS_AUTO(message) &&
4512
		    device_can_wakeup(&data->udev->dev))
4513
			data->udev->do_remote_wakeup = 1;
4514
		else if (!PMSG_IS_AUTO(message) &&
4515
			 !device_may_wakeup(&data->udev->dev)) {
4516
			data->udev->do_remote_wakeup = 0;
4517
			data->udev->reset_resume = 1;
4518
		}
4519
	}
4520

4521
	return 0;
4522
}
4523

4524
static void play_deferred(struct btusb_data *data)
4525
{
4526
	struct urb *urb;
4527
	int err;
4528

4529
	while ((urb = usb_get_from_anchor(&data->deferred))) {
4530
		usb_anchor_urb(urb, &data->tx_anchor);
4531

4532
		err = usb_submit_urb(urb, GFP_ATOMIC);
4533
		if (err < 0) {
4534
			if (err != -EPERM && err != -ENODEV)
4535
				BT_ERR("%s urb %p submission failed (%d)",
4536
				       data->hdev->name, urb, -err);
4537
			kfree(urb->setup_packet);
4538
			usb_unanchor_urb(urb);
4539
			usb_free_urb(urb);
4540
			break;
4541
		}
4542

4543
		data->tx_in_flight++;
4544
		usb_free_urb(urb);
4545
	}
4546

4547
	/* Cleanup the rest deferred urbs. */
4548
	while ((urb = usb_get_from_anchor(&data->deferred))) {
4549
		kfree(urb->setup_packet);
4550
		usb_free_urb(urb);
4551
	}
4552
}
4553

4554
static int btusb_resume(struct usb_interface *intf)
4555
{
4556
	struct btusb_data *data = usb_get_intfdata(intf);
4557
	struct hci_dev *hdev = data->hdev;
4558
	int err = 0;
4559

4560
	BT_DBG("intf %p", intf);
4561

4562
	if (--data->suspend_count)
4563
		return 0;
4564

4565
	/* Disable only if not already disabled (keep it balanced) */
4566
	if (test_and_clear_bit(BTUSB_OOB_WAKE_ENABLED, &data->flags)) {
4567
		disable_irq(data->oob_wake_irq);
4568
		disable_irq_wake(data->oob_wake_irq);
4569
	}
4570

4571
	if (!test_bit(HCI_RUNNING, &hdev->flags))
4572
		goto done;
4573

4574
	if (test_bit(BTUSB_INTR_RUNNING, &data->flags)) {
4575
		err = btusb_submit_intr_urb(hdev, GFP_NOIO);
4576
		if (err < 0) {
4577
			clear_bit(BTUSB_INTR_RUNNING, &data->flags);
4578
			goto failed;
4579
		}
4580
	}
4581

4582
	if (test_bit(BTUSB_BULK_RUNNING, &data->flags)) {
4583
		err = btusb_submit_bulk_urb(hdev, GFP_NOIO);
4584
		if (err < 0) {
4585
			clear_bit(BTUSB_BULK_RUNNING, &data->flags);
4586
			goto failed;
4587
		}
4588

4589
		btusb_submit_bulk_urb(hdev, GFP_NOIO);
4590
	}
4591

4592
	if (test_bit(BTUSB_ISOC_RUNNING, &data->flags)) {
4593
		if (btusb_submit_isoc_urb(hdev, GFP_NOIO) < 0)
4594
			clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
4595
		else
4596
			btusb_submit_isoc_urb(hdev, GFP_NOIO);
4597
	}
4598

4599
	if (data->resume)
4600
		data->resume(hdev);
4601

4602
	spin_lock_irq(&data->txlock);
4603
	play_deferred(data);
4604
	clear_bit(BTUSB_SUSPENDING, &data->flags);
4605
	spin_unlock_irq(&data->txlock);
4606
	schedule_work(&data->work);
4607

4608
	return 0;
4609

4610
failed:
4611
	usb_scuttle_anchored_urbs(&data->deferred);
4612
done:
4613
	spin_lock_irq(&data->txlock);
4614
	clear_bit(BTUSB_SUSPENDING, &data->flags);
4615
	spin_unlock_irq(&data->txlock);
4616

4617
	return err;
4618
}
4619
#endif
4620

4621
#ifdef CONFIG_DEV_COREDUMP
4622
static void btusb_coredump(struct device *dev)
4623
{
4624
	struct btusb_data *data = dev_get_drvdata(dev);
4625
	struct hci_dev *hdev = data->hdev;
4626

4627
	if (hdev->dump.coredump)
4628
		hdev->dump.coredump(hdev);
4629
}
4630
#endif
4631

4632
static struct usb_driver btusb_driver = {
4633
	.name		= "btusb",
4634
	.probe		= btusb_probe,
4635
	.disconnect	= btusb_disconnect,
4636
#ifdef CONFIG_PM
4637
	.suspend	= btusb_suspend,
4638
	.resume		= btusb_resume,
4639
#endif
4640
	.id_table	= btusb_table,
4641
	.supports_autosuspend = 1,
4642
	.disable_hub_initiated_lpm = 1,
4643

4644
#ifdef CONFIG_DEV_COREDUMP
4645
	.driver = {
4646
		.coredump = btusb_coredump,
4647
	},
4648
#endif
4649
};
4650

4651
module_usb_driver(btusb_driver);
4652

4653
module_param(disable_scofix, bool, 0644);
4654
MODULE_PARM_DESC(disable_scofix, "Disable fixup of wrong SCO buffer size");
4655

4656
module_param(force_scofix, bool, 0644);
4657
MODULE_PARM_DESC(force_scofix, "Force fixup of wrong SCO buffers size");
4658

4659
module_param(enable_autosuspend, bool, 0644);
4660
MODULE_PARM_DESC(enable_autosuspend, "Enable USB autosuspend by default");
4661

4662
module_param(reset, bool, 0644);
4663
MODULE_PARM_DESC(reset, "Send HCI reset command on initialization");
4664

4665
MODULE_AUTHOR("Marcel Holtmann <[email protected]>");
4666
MODULE_DESCRIPTION("Generic Bluetooth USB driver ver " VERSION);
4667
MODULE_VERSION(VERSION);
4668
MODULE_LICENSE("GPL");
4669

4670
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