| // SPDX-License-Identifier: GPL-2.0-or-later |
| /* |
| * |
| * Generic Bluetooth USB driver |
| * |
| * Copyright (C) 2005-2008 Marcel Holtmann <marcel@holtmann.org> |
| */ |
| |
| #include <linux/dmi.h> |
| #include <linux/module.h> |
| #include <linux/usb.h> |
| #include <linux/usb/quirks.h> |
| #include <linux/firmware.h> |
| #include <linux/iopoll.h> |
| #include <linux/of_device.h> |
| #include <linux/of_irq.h> |
| #include <linux/suspend.h> |
| #include <linux/gpio/consumer.h> |
| #include <asm/unaligned.h> |
| |
| #include <net/bluetooth/bluetooth.h> |
| #include <net/bluetooth/hci_core.h> |
| |
| #include "btintel.h" |
| #include "btbcm.h" |
| #include "btrtl.h" |
| |
| #define VERSION "0.8" |
| |
| static bool disable_scofix; |
| static bool force_scofix; |
| static bool enable_autosuspend = IS_ENABLED(CONFIG_BT_HCIBTUSB_AUTOSUSPEND); |
| |
| static bool reset = true; |
| |
| static struct usb_driver btusb_driver; |
| |
| #define BTUSB_IGNORE 0x01 |
| #define BTUSB_DIGIANSWER 0x02 |
| #define BTUSB_CSR 0x04 |
| #define BTUSB_SNIFFER 0x08 |
| #define BTUSB_BCM92035 0x10 |
| #define BTUSB_BROKEN_ISOC 0x20 |
| #define BTUSB_WRONG_SCO_MTU 0x40 |
| #define BTUSB_ATH3012 0x80 |
| #define BTUSB_INTEL_COMBINED 0x100 |
| #define BTUSB_INTEL_BOOT 0x200 |
| #define BTUSB_BCM_PATCHRAM 0x400 |
| #define BTUSB_MARVELL 0x800 |
| #define BTUSB_SWAVE 0x1000 |
| #define BTUSB_AMP 0x4000 |
| #define BTUSB_QCA_ROME 0x8000 |
| #define BTUSB_BCM_APPLE 0x10000 |
| #define BTUSB_REALTEK 0x20000 |
| #define BTUSB_BCM2045 0x40000 |
| #define BTUSB_IFNUM_2 0x80000 |
| #define BTUSB_CW6622 0x100000 |
| #define BTUSB_MEDIATEK 0x200000 |
| #define BTUSB_WIDEBAND_SPEECH 0x400000 |
| #define BTUSB_VALID_LE_STATES 0x800000 |
| #define BTUSB_QCA_WCN6855 0x1000000 |
| #define BTUSB_INTEL_BROKEN_INITIAL_NCMD 0x4000000 |
| |
| static const struct usb_device_id btusb_table[] = { |
| /* Generic Bluetooth USB device */ |
| { USB_DEVICE_INFO(0xe0, 0x01, 0x01) }, |
| |
| /* Generic Bluetooth AMP device */ |
| { USB_DEVICE_INFO(0xe0, 0x01, 0x04), .driver_info = BTUSB_AMP }, |
| |
| /* Generic Bluetooth USB interface */ |
| { USB_INTERFACE_INFO(0xe0, 0x01, 0x01) }, |
| |
| /* Apple-specific (Broadcom) devices */ |
| { USB_VENDOR_AND_INTERFACE_INFO(0x05ac, 0xff, 0x01, 0x01), |
| .driver_info = BTUSB_BCM_APPLE | BTUSB_IFNUM_2 }, |
| |
| /* MediaTek MT76x0E */ |
| { USB_DEVICE(0x0e8d, 0x763f) }, |
| |
| /* Broadcom SoftSailing reporting vendor specific */ |
| { USB_DEVICE(0x0a5c, 0x21e1) }, |
| |
| /* Apple MacBookPro 7,1 */ |
| { USB_DEVICE(0x05ac, 0x8213) }, |
| |
| /* Apple iMac11,1 */ |
| { USB_DEVICE(0x05ac, 0x8215) }, |
| |
| /* Apple MacBookPro6,2 */ |
| { USB_DEVICE(0x05ac, 0x8218) }, |
| |
| /* Apple MacBookAir3,1, MacBookAir3,2 */ |
| { USB_DEVICE(0x05ac, 0x821b) }, |
| |
| /* Apple MacBookAir4,1 */ |
| { USB_DEVICE(0x05ac, 0x821f) }, |
| |
| /* Apple MacBookPro8,2 */ |
| { USB_DEVICE(0x05ac, 0x821a) }, |
| |
| /* Apple MacMini5,1 */ |
| { USB_DEVICE(0x05ac, 0x8281) }, |
| |
| /* AVM BlueFRITZ! USB v2.0 */ |
| { USB_DEVICE(0x057c, 0x3800), .driver_info = BTUSB_SWAVE }, |
| |
| /* Bluetooth Ultraport Module from IBM */ |
| { USB_DEVICE(0x04bf, 0x030a) }, |
| |
| /* ALPS Modules with non-standard id */ |
| { USB_DEVICE(0x044e, 0x3001) }, |
| { USB_DEVICE(0x044e, 0x3002) }, |
| |
| /* Ericsson with non-standard id */ |
| { USB_DEVICE(0x0bdb, 0x1002) }, |
| |
| /* Canyon CN-BTU1 with HID interfaces */ |
| { USB_DEVICE(0x0c10, 0x0000) }, |
| |
| /* Broadcom BCM20702B0 (Dynex/Insignia) */ |
| { USB_DEVICE(0x19ff, 0x0239), .driver_info = BTUSB_BCM_PATCHRAM }, |
| |
| /* Broadcom BCM43142A0 (Foxconn/Lenovo) */ |
| { USB_VENDOR_AND_INTERFACE_INFO(0x105b, 0xff, 0x01, 0x01), |
| .driver_info = BTUSB_BCM_PATCHRAM }, |
| |
| /* Broadcom BCM920703 (HTC Vive) */ |
| { USB_VENDOR_AND_INTERFACE_INFO(0x0bb4, 0xff, 0x01, 0x01), |
| .driver_info = BTUSB_BCM_PATCHRAM }, |
| |
| /* Foxconn - Hon Hai */ |
| { USB_VENDOR_AND_INTERFACE_INFO(0x0489, 0xff, 0x01, 0x01), |
| .driver_info = BTUSB_BCM_PATCHRAM }, |
| |
| /* Lite-On Technology - Broadcom based */ |
| { USB_VENDOR_AND_INTERFACE_INFO(0x04ca, 0xff, 0x01, 0x01), |
| .driver_info = BTUSB_BCM_PATCHRAM }, |
| |
| /* Broadcom devices with vendor specific id */ |
| { USB_VENDOR_AND_INTERFACE_INFO(0x0a5c, 0xff, 0x01, 0x01), |
| .driver_info = BTUSB_BCM_PATCHRAM }, |
| |
| /* ASUSTek Computer - Broadcom based */ |
| { USB_VENDOR_AND_INTERFACE_INFO(0x0b05, 0xff, 0x01, 0x01), |
| .driver_info = BTUSB_BCM_PATCHRAM }, |
| |
| /* Belkin F8065bf - Broadcom based */ |
| { USB_VENDOR_AND_INTERFACE_INFO(0x050d, 0xff, 0x01, 0x01), |
| .driver_info = BTUSB_BCM_PATCHRAM }, |
| |
| /* IMC Networks - Broadcom based */ |
| { USB_VENDOR_AND_INTERFACE_INFO(0x13d3, 0xff, 0x01, 0x01), |
| .driver_info = BTUSB_BCM_PATCHRAM }, |
| |
| /* Dell Computer - Broadcom based */ |
| { USB_VENDOR_AND_INTERFACE_INFO(0x413c, 0xff, 0x01, 0x01), |
| .driver_info = BTUSB_BCM_PATCHRAM }, |
| |
| /* Toshiba Corp - Broadcom based */ |
| { USB_VENDOR_AND_INTERFACE_INFO(0x0930, 0xff, 0x01, 0x01), |
| .driver_info = BTUSB_BCM_PATCHRAM }, |
| |
| /* Intel Bluetooth USB Bootloader (RAM module) */ |
| { USB_DEVICE(0x8087, 0x0a5a), |
| .driver_info = BTUSB_INTEL_BOOT | BTUSB_BROKEN_ISOC }, |
| |
| { } /* Terminating entry */ |
| }; |
| |
| MODULE_DEVICE_TABLE(usb, btusb_table); |
| |
| static const struct usb_device_id blacklist_table[] = { |
| /* CSR BlueCore devices */ |
| { USB_DEVICE(0x0a12, 0x0001), .driver_info = BTUSB_CSR }, |
| |
| /* Broadcom BCM2033 without firmware */ |
| { USB_DEVICE(0x0a5c, 0x2033), .driver_info = BTUSB_IGNORE }, |
| |
| /* Broadcom BCM2045 devices */ |
| { USB_DEVICE(0x0a5c, 0x2045), .driver_info = BTUSB_BCM2045 }, |
| |
| /* Atheros 3011 with sflash firmware */ |
| { USB_DEVICE(0x0489, 0xe027), .driver_info = BTUSB_IGNORE }, |
| { USB_DEVICE(0x0489, 0xe03d), .driver_info = BTUSB_IGNORE }, |
| { USB_DEVICE(0x04f2, 0xaff1), .driver_info = BTUSB_IGNORE }, |
| { USB_DEVICE(0x0930, 0x0215), .driver_info = BTUSB_IGNORE }, |
| { USB_DEVICE(0x0cf3, 0x3002), .driver_info = BTUSB_IGNORE }, |
| { USB_DEVICE(0x0cf3, 0xe019), .driver_info = BTUSB_IGNORE }, |
| { USB_DEVICE(0x13d3, 0x3304), .driver_info = BTUSB_IGNORE }, |
| |
| /* Atheros AR9285 Malbec with sflash firmware */ |
| { USB_DEVICE(0x03f0, 0x311d), .driver_info = BTUSB_IGNORE }, |
| |
| /* Atheros 3012 with sflash firmware */ |
| { USB_DEVICE(0x0489, 0xe04d), .driver_info = BTUSB_ATH3012 }, |
| { USB_DEVICE(0x0489, 0xe04e), .driver_info = BTUSB_ATH3012 }, |
| { USB_DEVICE(0x0489, 0xe056), .driver_info = BTUSB_ATH3012 }, |
| { USB_DEVICE(0x0489, 0xe057), .driver_info = BTUSB_ATH3012 }, |
| { USB_DEVICE(0x0489, 0xe05f), .driver_info = BTUSB_ATH3012 }, |
| { USB_DEVICE(0x0489, 0xe076), .driver_info = BTUSB_ATH3012 }, |
| { USB_DEVICE(0x0489, 0xe078), .driver_info = BTUSB_ATH3012 }, |
| { USB_DEVICE(0x0489, 0xe095), .driver_info = BTUSB_ATH3012 }, |
| { USB_DEVICE(0x04c5, 0x1330), .driver_info = BTUSB_ATH3012 }, |
| { USB_DEVICE(0x04ca, 0x3004), .driver_info = BTUSB_ATH3012 }, |
| { USB_DEVICE(0x04ca, 0x3005), .driver_info = BTUSB_ATH3012 }, |
| { USB_DEVICE(0x04ca, 0x3006), .driver_info = BTUSB_ATH3012 }, |
| { USB_DEVICE(0x04ca, 0x3007), .driver_info = BTUSB_ATH3012 }, |
| { USB_DEVICE(0x04ca, 0x3008), .driver_info = BTUSB_ATH3012 }, |
| { USB_DEVICE(0x04ca, 0x300b), .driver_info = BTUSB_ATH3012 }, |
| { USB_DEVICE(0x04ca, 0x300d), .driver_info = BTUSB_ATH3012 }, |
| { USB_DEVICE(0x04ca, 0x300f), .driver_info = BTUSB_ATH3012 }, |
| { USB_DEVICE(0x04ca, 0x3010), .driver_info = BTUSB_ATH3012 }, |
| { USB_DEVICE(0x04ca, 0x3014), .driver_info = BTUSB_ATH3012 }, |
| { USB_DEVICE(0x04ca, 0x3018), .driver_info = BTUSB_ATH3012 }, |
| { USB_DEVICE(0x0930, 0x0219), .driver_info = BTUSB_ATH3012 }, |
| { USB_DEVICE(0x0930, 0x021c), .driver_info = BTUSB_ATH3012 }, |
| { USB_DEVICE(0x0930, 0x0220), .driver_info = BTUSB_ATH3012 }, |
| { USB_DEVICE(0x0930, 0x0227), .driver_info = BTUSB_ATH3012 }, |
| { USB_DEVICE(0x0b05, 0x17d0), .driver_info = BTUSB_ATH3012 }, |
| { USB_DEVICE(0x0cf3, 0x0036), .driver_info = BTUSB_ATH3012 }, |
| { USB_DEVICE(0x0cf3, 0x3004), .driver_info = BTUSB_ATH3012 }, |
| { USB_DEVICE(0x0cf3, 0x3008), .driver_info = BTUSB_ATH3012 }, |
| { USB_DEVICE(0x0cf3, 0x311d), .driver_info = BTUSB_ATH3012 }, |
| { USB_DEVICE(0x0cf3, 0x311e), .driver_info = BTUSB_ATH3012 }, |
| { USB_DEVICE(0x0cf3, 0x311f), .driver_info = BTUSB_ATH3012 }, |
| { USB_DEVICE(0x0cf3, 0x3121), .driver_info = BTUSB_ATH3012 }, |
| { USB_DEVICE(0x0cf3, 0x817a), .driver_info = BTUSB_ATH3012 }, |
| { USB_DEVICE(0x0cf3, 0x817b), .driver_info = BTUSB_ATH3012 }, |
| { USB_DEVICE(0x0cf3, 0xe003), .driver_info = BTUSB_ATH3012 }, |
| { USB_DEVICE(0x0cf3, 0xe004), .driver_info = BTUSB_ATH3012 }, |
| { USB_DEVICE(0x0cf3, 0xe005), .driver_info = BTUSB_ATH3012 }, |
| { USB_DEVICE(0x0cf3, 0xe006), .driver_info = BTUSB_ATH3012 }, |
| { USB_DEVICE(0x13d3, 0x3362), .driver_info = BTUSB_ATH3012 }, |
| { USB_DEVICE(0x13d3, 0x3375), .driver_info = BTUSB_ATH3012 }, |
| { USB_DEVICE(0x13d3, 0x3393), .driver_info = BTUSB_ATH3012 }, |
| { USB_DEVICE(0x13d3, 0x3395), .driver_info = BTUSB_ATH3012 }, |
| { USB_DEVICE(0x13d3, 0x3402), .driver_info = BTUSB_ATH3012 }, |
| { USB_DEVICE(0x13d3, 0x3408), .driver_info = BTUSB_ATH3012 }, |
| { USB_DEVICE(0x13d3, 0x3423), .driver_info = BTUSB_ATH3012 }, |
| { USB_DEVICE(0x13d3, 0x3432), .driver_info = BTUSB_ATH3012 }, |
| { USB_DEVICE(0x13d3, 0x3472), .driver_info = BTUSB_ATH3012 }, |
| { USB_DEVICE(0x13d3, 0x3474), .driver_info = BTUSB_ATH3012 }, |
| { USB_DEVICE(0x13d3, 0x3487), .driver_info = BTUSB_ATH3012 }, |
| { USB_DEVICE(0x13d3, 0x3490), .driver_info = BTUSB_ATH3012 }, |
| |
| /* Atheros AR5BBU12 with sflash firmware */ |
| { USB_DEVICE(0x0489, 0xe02c), .driver_info = BTUSB_IGNORE }, |
| |
| /* Atheros AR5BBU12 with sflash firmware */ |
| { USB_DEVICE(0x0489, 0xe036), .driver_info = BTUSB_ATH3012 }, |
| { USB_DEVICE(0x0489, 0xe03c), .driver_info = BTUSB_ATH3012 }, |
| |
| /* QCA ROME chipset */ |
| { USB_DEVICE(0x0cf3, 0x535b), .driver_info = BTUSB_QCA_ROME | |
| BTUSB_WIDEBAND_SPEECH }, |
| { USB_DEVICE(0x0cf3, 0xe007), .driver_info = BTUSB_QCA_ROME | |
| BTUSB_WIDEBAND_SPEECH }, |
| { USB_DEVICE(0x0cf3, 0xe009), .driver_info = BTUSB_QCA_ROME | |
| BTUSB_WIDEBAND_SPEECH }, |
| { USB_DEVICE(0x0cf3, 0xe010), .driver_info = BTUSB_QCA_ROME | |
| BTUSB_WIDEBAND_SPEECH }, |
| { USB_DEVICE(0x0cf3, 0xe300), .driver_info = BTUSB_QCA_ROME | |
| BTUSB_WIDEBAND_SPEECH }, |
| { USB_DEVICE(0x0cf3, 0xe301), .driver_info = BTUSB_QCA_ROME | |
| BTUSB_WIDEBAND_SPEECH }, |
| { USB_DEVICE(0x0cf3, 0xe360), .driver_info = BTUSB_QCA_ROME | |
| BTUSB_WIDEBAND_SPEECH }, |
| { USB_DEVICE(0x0cf3, 0xe500), .driver_info = BTUSB_QCA_ROME | |
| BTUSB_WIDEBAND_SPEECH }, |
| { USB_DEVICE(0x0489, 0xe092), .driver_info = BTUSB_QCA_ROME | |
| BTUSB_WIDEBAND_SPEECH }, |
| { USB_DEVICE(0x0489, 0xe09f), .driver_info = BTUSB_QCA_ROME | |
| BTUSB_WIDEBAND_SPEECH }, |
| { USB_DEVICE(0x0489, 0xe0a2), .driver_info = BTUSB_QCA_ROME | |
| BTUSB_WIDEBAND_SPEECH }, |
| { USB_DEVICE(0x04ca, 0x3011), .driver_info = BTUSB_QCA_ROME | |
| BTUSB_WIDEBAND_SPEECH }, |
| { USB_DEVICE(0x04ca, 0x3015), .driver_info = BTUSB_QCA_ROME | |
| BTUSB_WIDEBAND_SPEECH }, |
| { USB_DEVICE(0x04ca, 0x3016), .driver_info = BTUSB_QCA_ROME | |
| BTUSB_WIDEBAND_SPEECH }, |
| { USB_DEVICE(0x04ca, 0x301a), .driver_info = BTUSB_QCA_ROME | |
| BTUSB_WIDEBAND_SPEECH }, |
| { USB_DEVICE(0x04ca, 0x3021), .driver_info = BTUSB_QCA_ROME | |
| BTUSB_WIDEBAND_SPEECH }, |
| { USB_DEVICE(0x13d3, 0x3491), .driver_info = BTUSB_QCA_ROME | |
| BTUSB_WIDEBAND_SPEECH }, |
| { USB_DEVICE(0x13d3, 0x3496), .driver_info = BTUSB_QCA_ROME | |
| BTUSB_WIDEBAND_SPEECH }, |
| { USB_DEVICE(0x13d3, 0x3501), .driver_info = BTUSB_QCA_ROME | |
| BTUSB_WIDEBAND_SPEECH }, |
| |
| /* QCA WCN6855 chipset */ |
| { USB_DEVICE(0x0cf3, 0xe600), .driver_info = BTUSB_QCA_WCN6855 | |
| BTUSB_WIDEBAND_SPEECH | |
| BTUSB_VALID_LE_STATES }, |
| |
| /* Broadcom BCM2035 */ |
| { USB_DEVICE(0x0a5c, 0x2009), .driver_info = BTUSB_BCM92035 }, |
| { USB_DEVICE(0x0a5c, 0x200a), .driver_info = BTUSB_WRONG_SCO_MTU }, |
| { USB_DEVICE(0x0a5c, 0x2035), .driver_info = BTUSB_WRONG_SCO_MTU }, |
| |
| /* Broadcom BCM2045 */ |
| { USB_DEVICE(0x0a5c, 0x2039), .driver_info = BTUSB_WRONG_SCO_MTU }, |
| { USB_DEVICE(0x0a5c, 0x2101), .driver_info = BTUSB_WRONG_SCO_MTU }, |
| |
| /* IBM/Lenovo ThinkPad with Broadcom chip */ |
| { USB_DEVICE(0x0a5c, 0x201e), .driver_info = BTUSB_WRONG_SCO_MTU }, |
| { USB_DEVICE(0x0a5c, 0x2110), .driver_info = BTUSB_WRONG_SCO_MTU }, |
| |
| /* HP laptop with Broadcom chip */ |
| { USB_DEVICE(0x03f0, 0x171d), .driver_info = BTUSB_WRONG_SCO_MTU }, |
| |
| /* Dell laptop with Broadcom chip */ |
| { USB_DEVICE(0x413c, 0x8126), .driver_info = BTUSB_WRONG_SCO_MTU }, |
| |
| /* Dell Wireless 370 and 410 devices */ |
| { USB_DEVICE(0x413c, 0x8152), .driver_info = BTUSB_WRONG_SCO_MTU }, |
| { USB_DEVICE(0x413c, 0x8156), .driver_info = BTUSB_WRONG_SCO_MTU }, |
| |
| /* Belkin F8T012 and F8T013 devices */ |
| { USB_DEVICE(0x050d, 0x0012), .driver_info = BTUSB_WRONG_SCO_MTU }, |
| { USB_DEVICE(0x050d, 0x0013), .driver_info = BTUSB_WRONG_SCO_MTU }, |
| |
| /* Asus WL-BTD202 device */ |
| { USB_DEVICE(0x0b05, 0x1715), .driver_info = BTUSB_WRONG_SCO_MTU }, |
| |
| /* Kensington Bluetooth USB adapter */ |
| { USB_DEVICE(0x047d, 0x105e), .driver_info = BTUSB_WRONG_SCO_MTU }, |
| |
| /* RTX Telecom based adapters with buggy SCO support */ |
| { USB_DEVICE(0x0400, 0x0807), .driver_info = BTUSB_BROKEN_ISOC }, |
| { USB_DEVICE(0x0400, 0x080a), .driver_info = BTUSB_BROKEN_ISOC }, |
| |
| /* CONWISE Technology based adapters with buggy SCO support */ |
| { USB_DEVICE(0x0e5e, 0x6622), |
| .driver_info = BTUSB_BROKEN_ISOC | BTUSB_CW6622}, |
| |
| /* Roper Class 1 Bluetooth Dongle (Silicon Wave based) */ |
| { USB_DEVICE(0x1310, 0x0001), .driver_info = BTUSB_SWAVE }, |
| |
| /* Digianswer devices */ |
| { USB_DEVICE(0x08fd, 0x0001), .driver_info = BTUSB_DIGIANSWER }, |
| { USB_DEVICE(0x08fd, 0x0002), .driver_info = BTUSB_IGNORE }, |
| |
| /* CSR BlueCore Bluetooth Sniffer */ |
| { USB_DEVICE(0x0a12, 0x0002), |
| .driver_info = BTUSB_SNIFFER | BTUSB_BROKEN_ISOC }, |
| |
| /* Frontline ComProbe Bluetooth Sniffer */ |
| { USB_DEVICE(0x16d3, 0x0002), |
| .driver_info = BTUSB_SNIFFER | BTUSB_BROKEN_ISOC }, |
| |
| /* Marvell Bluetooth devices */ |
| { USB_DEVICE(0x1286, 0x2044), .driver_info = BTUSB_MARVELL }, |
| { USB_DEVICE(0x1286, 0x2046), .driver_info = BTUSB_MARVELL }, |
| { USB_DEVICE(0x1286, 0x204e), .driver_info = BTUSB_MARVELL }, |
| |
| /* Intel Bluetooth devices */ |
| { USB_DEVICE(0x8087, 0x0025), .driver_info = BTUSB_INTEL_COMBINED }, |
| { USB_DEVICE(0x8087, 0x0026), .driver_info = BTUSB_INTEL_COMBINED }, |
| { USB_DEVICE(0x8087, 0x0029), .driver_info = BTUSB_INTEL_COMBINED }, |
| { USB_DEVICE(0x8087, 0x0032), .driver_info = BTUSB_INTEL_COMBINED }, |
| { USB_DEVICE(0x8087, 0x0033), .driver_info = BTUSB_INTEL_COMBINED }, |
| { USB_DEVICE(0x8087, 0x07da), .driver_info = BTUSB_CSR }, |
| { USB_DEVICE(0x8087, 0x07dc), .driver_info = BTUSB_INTEL_COMBINED | |
| BTUSB_INTEL_BROKEN_INITIAL_NCMD }, |
| { USB_DEVICE(0x8087, 0x0a2a), .driver_info = BTUSB_INTEL_COMBINED }, |
| { USB_DEVICE(0x8087, 0x0a2b), .driver_info = BTUSB_INTEL_COMBINED }, |
| { USB_DEVICE(0x8087, 0x0aa7), .driver_info = BTUSB_INTEL_COMBINED }, |
| { USB_DEVICE(0x8087, 0x0aaa), .driver_info = BTUSB_INTEL_COMBINED }, |
| |
| /* Other Intel Bluetooth devices */ |
| { USB_VENDOR_AND_INTERFACE_INFO(0x8087, 0xe0, 0x01, 0x01), |
| .driver_info = BTUSB_IGNORE }, |
| |
| /* Realtek 8822CE Bluetooth devices */ |
| { USB_DEVICE(0x0bda, 0xb00c), .driver_info = BTUSB_REALTEK | |
| BTUSB_WIDEBAND_SPEECH }, |
| { USB_DEVICE(0x0bda, 0xc822), .driver_info = BTUSB_REALTEK | |
| BTUSB_WIDEBAND_SPEECH }, |
| |
| /* Realtek 8852AE Bluetooth devices */ |
| { USB_DEVICE(0x0bda, 0xc852), .driver_info = BTUSB_REALTEK | |
| BTUSB_WIDEBAND_SPEECH }, |
| |
| /* Realtek Bluetooth devices */ |
| { USB_VENDOR_AND_INTERFACE_INFO(0x0bda, 0xe0, 0x01, 0x01), |
| .driver_info = BTUSB_REALTEK }, |
| |
| /* MediaTek Bluetooth devices */ |
| { USB_VENDOR_AND_INTERFACE_INFO(0x0e8d, 0xe0, 0x01, 0x01), |
| .driver_info = BTUSB_MEDIATEK | |
| BTUSB_WIDEBAND_SPEECH | |
| BTUSB_VALID_LE_STATES }, |
| |
| /* Additional MediaTek MT7615E Bluetooth devices */ |
| { USB_DEVICE(0x13d3, 0x3560), .driver_info = BTUSB_MEDIATEK}, |
| |
| /* Additional MediaTek MT7668 Bluetooth devices */ |
| { USB_DEVICE(0x043e, 0x3109), .driver_info = BTUSB_MEDIATEK | |
| BTUSB_WIDEBAND_SPEECH | |
| BTUSB_VALID_LE_STATES }, |
| |
| /* Additional MediaTek MT7921 Bluetooth devices */ |
| { USB_DEVICE(0x04ca, 0x3802), .driver_info = BTUSB_MEDIATEK | |
| BTUSB_WIDEBAND_SPEECH | |
| BTUSB_VALID_LE_STATES }, |
| { USB_DEVICE(0x13d3, 0x3563), .driver_info = BTUSB_MEDIATEK | |
| BTUSB_WIDEBAND_SPEECH | |
| BTUSB_VALID_LE_STATES }, |
| { USB_DEVICE(0x0489, 0xe0cd), .driver_info = BTUSB_MEDIATEK | |
| BTUSB_WIDEBAND_SPEECH | |
| BTUSB_VALID_LE_STATES }, |
| |
| /* Additional Realtek 8723AE Bluetooth devices */ |
| { USB_DEVICE(0x0930, 0x021d), .driver_info = BTUSB_REALTEK }, |
| { USB_DEVICE(0x13d3, 0x3394), .driver_info = BTUSB_REALTEK }, |
| |
| /* Additional Realtek 8723BE Bluetooth devices */ |
| { USB_DEVICE(0x0489, 0xe085), .driver_info = BTUSB_REALTEK }, |
| { USB_DEVICE(0x0489, 0xe08b), .driver_info = BTUSB_REALTEK }, |
| { USB_DEVICE(0x13d3, 0x3410), .driver_info = BTUSB_REALTEK }, |
| { USB_DEVICE(0x13d3, 0x3416), .driver_info = BTUSB_REALTEK }, |
| { USB_DEVICE(0x13d3, 0x3459), .driver_info = BTUSB_REALTEK }, |
| { USB_DEVICE(0x13d3, 0x3494), .driver_info = BTUSB_REALTEK }, |
| |
| /* Additional Realtek 8723BU Bluetooth devices */ |
| { USB_DEVICE(0x7392, 0xa611), .driver_info = BTUSB_REALTEK }, |
| |
| /* Additional Realtek 8723DE Bluetooth devices */ |
| { USB_DEVICE(0x0bda, 0xb009), .driver_info = BTUSB_REALTEK }, |
| { USB_DEVICE(0x2ff8, 0xb011), .driver_info = BTUSB_REALTEK }, |
| |
| /* Additional Realtek 8761BU Bluetooth devices */ |
| { USB_DEVICE(0x0b05, 0x190e), .driver_info = BTUSB_REALTEK | |
| BTUSB_WIDEBAND_SPEECH }, |
| |
| /* Additional Realtek 8821AE Bluetooth devices */ |
| { USB_DEVICE(0x0b05, 0x17dc), .driver_info = BTUSB_REALTEK }, |
| { USB_DEVICE(0x13d3, 0x3414), .driver_info = BTUSB_REALTEK }, |
| { USB_DEVICE(0x13d3, 0x3458), .driver_info = BTUSB_REALTEK }, |
| { USB_DEVICE(0x13d3, 0x3461), .driver_info = BTUSB_REALTEK }, |
| { USB_DEVICE(0x13d3, 0x3462), .driver_info = BTUSB_REALTEK }, |
| |
| /* Additional Realtek 8822BE Bluetooth devices */ |
| { USB_DEVICE(0x13d3, 0x3526), .driver_info = BTUSB_REALTEK }, |
| { USB_DEVICE(0x0b05, 0x185c), .driver_info = BTUSB_REALTEK }, |
| |
| /* Additional Realtek 8822CE Bluetooth devices */ |
| { USB_DEVICE(0x04ca, 0x4005), .driver_info = BTUSB_REALTEK | |
| BTUSB_WIDEBAND_SPEECH }, |
| /* Bluetooth component of Realtek 8852AE device */ |
| { USB_DEVICE(0x04ca, 0x4006), .driver_info = BTUSB_REALTEK | |
| BTUSB_WIDEBAND_SPEECH }, |
| |
| { USB_DEVICE(0x04c5, 0x161f), .driver_info = BTUSB_REALTEK | |
| BTUSB_WIDEBAND_SPEECH }, |
| { USB_DEVICE(0x0b05, 0x18ef), .driver_info = BTUSB_REALTEK | |
| BTUSB_WIDEBAND_SPEECH }, |
| { USB_DEVICE(0x13d3, 0x3548), .driver_info = BTUSB_REALTEK | |
| BTUSB_WIDEBAND_SPEECH }, |
| { USB_DEVICE(0x13d3, 0x3549), .driver_info = BTUSB_REALTEK | |
| BTUSB_WIDEBAND_SPEECH }, |
| { USB_DEVICE(0x13d3, 0x3553), .driver_info = BTUSB_REALTEK | |
| BTUSB_WIDEBAND_SPEECH }, |
| { USB_DEVICE(0x13d3, 0x3555), .driver_info = BTUSB_REALTEK | |
| BTUSB_WIDEBAND_SPEECH }, |
| { USB_DEVICE(0x2ff8, 0x3051), .driver_info = BTUSB_REALTEK | |
| BTUSB_WIDEBAND_SPEECH }, |
| { USB_DEVICE(0x1358, 0xc123), .driver_info = BTUSB_REALTEK | |
| BTUSB_WIDEBAND_SPEECH }, |
| { USB_DEVICE(0x0bda, 0xc123), .driver_info = BTUSB_REALTEK | |
| BTUSB_WIDEBAND_SPEECH }, |
| { USB_DEVICE(0x0cb5, 0xc547), .driver_info = BTUSB_REALTEK | |
| BTUSB_WIDEBAND_SPEECH }, |
| |
| /* Silicon Wave based devices */ |
| { USB_DEVICE(0x0c10, 0x0000), .driver_info = BTUSB_SWAVE }, |
| |
| { } /* Terminating entry */ |
| }; |
| |
| /* The Bluetooth USB module build into some devices needs to be reset on resume, |
| * this is a problem with the platform (likely shutting off all power) not with |
| * the module itself. So we use a DMI list to match known broken platforms. |
| */ |
| static const struct dmi_system_id btusb_needs_reset_resume_table[] = { |
| { |
| /* Dell OptiPlex 3060 (QCA ROME device 0cf3:e007) */ |
| .matches = { |
| DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."), |
| DMI_MATCH(DMI_PRODUCT_NAME, "OptiPlex 3060"), |
| }, |
| }, |
| { |
| /* Dell XPS 9360 (QCA ROME device 0cf3:e300) */ |
| .matches = { |
| DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."), |
| DMI_MATCH(DMI_PRODUCT_NAME, "XPS 13 9360"), |
| }, |
| }, |
| { |
| /* Dell Inspiron 5565 (QCA ROME device 0cf3:e009) */ |
| .matches = { |
| DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."), |
| DMI_MATCH(DMI_PRODUCT_NAME, "Inspiron 5565"), |
| }, |
| }, |
| {} |
| }; |
| |
| #define BTUSB_MAX_ISOC_FRAMES 10 |
| |
| #define BTUSB_INTR_RUNNING 0 |
| #define BTUSB_BULK_RUNNING 1 |
| #define BTUSB_ISOC_RUNNING 2 |
| #define BTUSB_SUSPENDING 3 |
| #define BTUSB_DID_ISO_RESUME 4 |
| #define BTUSB_BOOTLOADER 5 |
| #define BTUSB_DOWNLOADING 6 |
| #define BTUSB_FIRMWARE_LOADED 7 |
| #define BTUSB_FIRMWARE_FAILED 8 |
| #define BTUSB_BOOTING 9 |
| #define BTUSB_DIAG_RUNNING 10 |
| #define BTUSB_OOB_WAKE_ENABLED 11 |
| #define BTUSB_HW_RESET_ACTIVE 12 |
| #define BTUSB_TX_WAIT_VND_EVT 13 |
| #define BTUSB_WAKEUP_AUTOSUSPEND 14 |
| #define BTUSB_USE_ALT3_FOR_WBS 15 |
| |
| struct btusb_data { |
| struct hci_dev *hdev; |
| struct usb_device *udev; |
| struct usb_interface *intf; |
| struct usb_interface *isoc; |
| struct usb_interface *diag; |
| unsigned isoc_ifnum; |
| |
| unsigned long flags; |
| |
| struct work_struct work; |
| struct work_struct waker; |
| |
| struct usb_anchor deferred; |
| struct usb_anchor tx_anchor; |
| int tx_in_flight; |
| spinlock_t txlock; |
| |
| struct usb_anchor intr_anchor; |
| struct usb_anchor bulk_anchor; |
| struct usb_anchor isoc_anchor; |
| struct usb_anchor diag_anchor; |
| struct usb_anchor ctrl_anchor; |
| spinlock_t rxlock; |
| |
| struct sk_buff *evt_skb; |
| struct sk_buff *acl_skb; |
| struct sk_buff *sco_skb; |
| |
| struct usb_endpoint_descriptor *intr_ep; |
| struct usb_endpoint_descriptor *bulk_tx_ep; |
| struct usb_endpoint_descriptor *bulk_rx_ep; |
| struct usb_endpoint_descriptor *isoc_tx_ep; |
| struct usb_endpoint_descriptor *isoc_rx_ep; |
| struct usb_endpoint_descriptor *diag_tx_ep; |
| struct usb_endpoint_descriptor *diag_rx_ep; |
| |
| struct gpio_desc *reset_gpio; |
| |
| __u8 cmdreq_type; |
| __u8 cmdreq; |
| |
| unsigned int sco_num; |
| unsigned int air_mode; |
| bool usb_alt6_packet_flow; |
| int isoc_altsetting; |
| int suspend_count; |
| |
| int (*recv_event)(struct hci_dev *hdev, struct sk_buff *skb); |
| int (*recv_acl)(struct hci_dev *hdev, struct sk_buff *skb); |
| int (*recv_bulk)(struct btusb_data *data, void *buffer, int count); |
| |
| int (*setup_on_usb)(struct hci_dev *hdev); |
| |
| int oob_wake_irq; /* irq for out-of-band wake-on-bt */ |
| unsigned cmd_timeout_cnt; |
| }; |
| |
| static void btusb_intel_cmd_timeout(struct hci_dev *hdev) |
| { |
| struct btusb_data *data = hci_get_drvdata(hdev); |
| struct gpio_desc *reset_gpio = data->reset_gpio; |
| |
| if (++data->cmd_timeout_cnt < 5) |
| return; |
| |
| if (!reset_gpio) { |
| bt_dev_err(hdev, "No way to reset. Ignoring and continuing"); |
| return; |
| } |
| |
| /* |
| * Toggle the hard reset line if the platform provides one. The reset |
| * is going to yank the device off the USB and then replug. So doing |
| * once is enough. The cleanup is handled correctly on the way out |
| * (standard USB disconnect), and the new device is detected cleanly |
| * and bound to the driver again like it should be. |
| */ |
| if (test_and_set_bit(BTUSB_HW_RESET_ACTIVE, &data->flags)) { |
| bt_dev_err(hdev, "last reset failed? Not resetting again"); |
| return; |
| } |
| |
| bt_dev_err(hdev, "Initiating HW reset via gpio"); |
| gpiod_set_value_cansleep(reset_gpio, 1); |
| msleep(100); |
| gpiod_set_value_cansleep(reset_gpio, 0); |
| } |
| |
| static void btusb_rtl_cmd_timeout(struct hci_dev *hdev) |
| { |
| struct btusb_data *data = hci_get_drvdata(hdev); |
| struct gpio_desc *reset_gpio = data->reset_gpio; |
| |
| if (++data->cmd_timeout_cnt < 5) |
| return; |
| |
| if (!reset_gpio) { |
| bt_dev_err(hdev, "No gpio to reset Realtek device, ignoring"); |
| return; |
| } |
| |
| /* Toggle the hard reset line. The Realtek device is going to |
| * yank itself off the USB and then replug. The cleanup is handled |
| * correctly on the way out (standard USB disconnect), and the new |
| * device is detected cleanly and bound to the driver again like |
| * it should be. |
| */ |
| if (test_and_set_bit(BTUSB_HW_RESET_ACTIVE, &data->flags)) { |
| bt_dev_err(hdev, "last reset failed? Not resetting again"); |
| return; |
| } |
| |
| bt_dev_err(hdev, "Reset Realtek device via gpio"); |
| gpiod_set_value_cansleep(reset_gpio, 1); |
| msleep(200); |
| gpiod_set_value_cansleep(reset_gpio, 0); |
| } |
| |
| static void btusb_qca_cmd_timeout(struct hci_dev *hdev) |
| { |
| struct btusb_data *data = hci_get_drvdata(hdev); |
| int err; |
| |
| if (++data->cmd_timeout_cnt < 5) |
| return; |
| |
| bt_dev_err(hdev, "Multiple cmd timeouts seen. Resetting usb device."); |
| /* This is not an unbalanced PM reference since the device will reset */ |
| err = usb_autopm_get_interface(data->intf); |
| if (!err) |
| usb_queue_reset_device(data->intf); |
| else |
| bt_dev_err(hdev, "Failed usb_autopm_get_interface with %d", err); |
| } |
| |
| static inline void btusb_free_frags(struct btusb_data *data) |
| { |
| unsigned long flags; |
| |
| spin_lock_irqsave(&data->rxlock, flags); |
| |
| kfree_skb(data->evt_skb); |
| data->evt_skb = NULL; |
| |
| kfree_skb(data->acl_skb); |
| data->acl_skb = NULL; |
| |
| kfree_skb(data->sco_skb); |
| data->sco_skb = NULL; |
| |
| spin_unlock_irqrestore(&data->rxlock, flags); |
| } |
| |
| static int btusb_recv_intr(struct btusb_data *data, void *buffer, int count) |
| { |
| struct sk_buff *skb; |
| unsigned long flags; |
| int err = 0; |
| |
| spin_lock_irqsave(&data->rxlock, flags); |
| skb = data->evt_skb; |
| |
| while (count) { |
| int len; |
| |
| if (!skb) { |
| skb = bt_skb_alloc(HCI_MAX_EVENT_SIZE, GFP_ATOMIC); |
| if (!skb) { |
| err = -ENOMEM; |
| break; |
| } |
| |
| hci_skb_pkt_type(skb) = HCI_EVENT_PKT; |
| hci_skb_expect(skb) = HCI_EVENT_HDR_SIZE; |
| } |
| |
| len = min_t(uint, hci_skb_expect(skb), count); |
| skb_put_data(skb, buffer, len); |
| |
| count -= len; |
| buffer += len; |
| hci_skb_expect(skb) -= len; |
| |
| if (skb->len == HCI_EVENT_HDR_SIZE) { |
| /* Complete event header */ |
| hci_skb_expect(skb) = hci_event_hdr(skb)->plen; |
| |
| if (skb_tailroom(skb) < hci_skb_expect(skb)) { |
| kfree_skb(skb); |
| skb = NULL; |
| |
| err = -EILSEQ; |
| break; |
| } |
| } |
| |
| if (!hci_skb_expect(skb)) { |
| /* Complete frame */ |
| data->recv_event(data->hdev, skb); |
| skb = NULL; |
| } |
| } |
| |
| data->evt_skb = skb; |
| spin_unlock_irqrestore(&data->rxlock, flags); |
| |
| return err; |
| } |
| |
| static int btusb_recv_bulk(struct btusb_data *data, void *buffer, int count) |
| { |
| struct sk_buff *skb; |
| unsigned long flags; |
| int err = 0; |
| |
| spin_lock_irqsave(&data->rxlock, flags); |
| skb = data->acl_skb; |
| |
| while (count) { |
| int len; |
| |
| if (!skb) { |
| skb = bt_skb_alloc(HCI_MAX_FRAME_SIZE, GFP_ATOMIC); |
| if (!skb) { |
| err = -ENOMEM; |
| break; |
| } |
| |
| hci_skb_pkt_type(skb) = HCI_ACLDATA_PKT; |
| hci_skb_expect(skb) = HCI_ACL_HDR_SIZE; |
| } |
| |
| len = min_t(uint, hci_skb_expect(skb), count); |
| skb_put_data(skb, buffer, len); |
| |
| count -= len; |
| buffer += len; |
| hci_skb_expect(skb) -= len; |
| |
| if (skb->len == HCI_ACL_HDR_SIZE) { |
| __le16 dlen = hci_acl_hdr(skb)->dlen; |
| |
| /* Complete ACL header */ |
| hci_skb_expect(skb) = __le16_to_cpu(dlen); |
| |
| if (skb_tailroom(skb) < hci_skb_expect(skb)) { |
| kfree_skb(skb); |
| skb = NULL; |
| |
| err = -EILSEQ; |
| break; |
| } |
| } |
| |
| if (!hci_skb_expect(skb)) { |
| /* Complete frame */ |
| data->recv_acl(data->hdev, skb); |
| skb = NULL; |
| } |
| } |
| |
| data->acl_skb = skb; |
| spin_unlock_irqrestore(&data->rxlock, flags); |
| |
| return err; |
| } |
| |
| static int btusb_recv_isoc(struct btusb_data *data, void *buffer, int count) |
| { |
| struct sk_buff *skb; |
| unsigned long flags; |
| int err = 0; |
| |
| spin_lock_irqsave(&data->rxlock, flags); |
| skb = data->sco_skb; |
| |
| while (count) { |
| int len; |
| |
| if (!skb) { |
| skb = bt_skb_alloc(HCI_MAX_SCO_SIZE, GFP_ATOMIC); |
| if (!skb) { |
| err = -ENOMEM; |
| break; |
| } |
| |
| hci_skb_pkt_type(skb) = HCI_SCODATA_PKT; |
| hci_skb_expect(skb) = HCI_SCO_HDR_SIZE; |
| } |
| |
| len = min_t(uint, hci_skb_expect(skb), count); |
| skb_put_data(skb, buffer, len); |
| |
| count -= len; |
| buffer += len; |
| hci_skb_expect(skb) -= len; |
| |
| if (skb->len == HCI_SCO_HDR_SIZE) { |
| /* Complete SCO header */ |
| hci_skb_expect(skb) = hci_sco_hdr(skb)->dlen; |
| |
| if (skb_tailroom(skb) < hci_skb_expect(skb)) { |
| kfree_skb(skb); |
| skb = NULL; |
| |
| err = -EILSEQ; |
| break; |
| } |
| } |
| |
| if (!hci_skb_expect(skb)) { |
| /* Complete frame */ |
| hci_recv_frame(data->hdev, skb); |
| skb = NULL; |
| } |
| } |
| |
| data->sco_skb = skb; |
| spin_unlock_irqrestore(&data->rxlock, flags); |
| |
| return err; |
| } |
| |
| static void btusb_intr_complete(struct urb *urb) |
| { |
| struct hci_dev *hdev = urb->context; |
| struct btusb_data *data = hci_get_drvdata(hdev); |
| int err; |
| |
| BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status, |
| urb->actual_length); |
| |
| if (!test_bit(HCI_RUNNING, &hdev->flags)) |
| return; |
| |
| if (urb->status == 0) { |
| hdev->stat.byte_rx += urb->actual_length; |
| |
| if (btusb_recv_intr(data, urb->transfer_buffer, |
| urb->actual_length) < 0) { |
| bt_dev_err(hdev, "corrupted event packet"); |
| hdev->stat.err_rx++; |
| } |
| } else if (urb->status == -ENOENT) { |
| /* Avoid suspend failed when usb_kill_urb */ |
| return; |
| } |
| |
| if (!test_bit(BTUSB_INTR_RUNNING, &data->flags)) |
| return; |
| |
| usb_mark_last_busy(data->udev); |
| usb_anchor_urb(urb, &data->intr_anchor); |
| |
| err = usb_submit_urb(urb, GFP_ATOMIC); |
| if (err < 0) { |
| /* -EPERM: urb is being killed; |
| * -ENODEV: device got disconnected |
| */ |
| if (err != -EPERM && err != -ENODEV) |
| bt_dev_err(hdev, "urb %p failed to resubmit (%d)", |
| urb, -err); |
| usb_unanchor_urb(urb); |
| } |
| } |
| |
| static int btusb_submit_intr_urb(struct hci_dev *hdev, gfp_t mem_flags) |
| { |
| struct btusb_data *data = hci_get_drvdata(hdev); |
| struct urb *urb; |
| unsigned char *buf; |
| unsigned int pipe; |
| int err, size; |
| |
| BT_DBG("%s", hdev->name); |
| |
| if (!data->intr_ep) |
| return -ENODEV; |
| |
| urb = usb_alloc_urb(0, mem_flags); |
| if (!urb) |
| return -ENOMEM; |
| |
| size = le16_to_cpu(data->intr_ep->wMaxPacketSize); |
| |
| buf = kmalloc(size, mem_flags); |
| if (!buf) { |
| usb_free_urb(urb); |
| return -ENOMEM; |
| } |
| |
| pipe = usb_rcvintpipe(data->udev, data->intr_ep->bEndpointAddress); |
| |
| usb_fill_int_urb(urb, data->udev, pipe, buf, size, |
| btusb_intr_complete, hdev, data->intr_ep->bInterval); |
| |
| urb->transfer_flags |= URB_FREE_BUFFER; |
| |
| usb_anchor_urb(urb, &data->intr_anchor); |
| |
| err = usb_submit_urb(urb, mem_flags); |
| if (err < 0) { |
| if (err != -EPERM && err != -ENODEV) |
| bt_dev_err(hdev, "urb %p submission failed (%d)", |
| urb, -err); |
| usb_unanchor_urb(urb); |
| } |
| |
| usb_free_urb(urb); |
| |
| return err; |
| } |
| |
| static void btusb_bulk_complete(struct urb *urb) |
| { |
| struct hci_dev *hdev = urb->context; |
| struct btusb_data *data = hci_get_drvdata(hdev); |
| int err; |
| |
| BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status, |
| urb->actual_length); |
| |
| if (!test_bit(HCI_RUNNING, &hdev->flags)) |
| return; |
| |
| if (urb->status == 0) { |
| hdev->stat.byte_rx += urb->actual_length; |
| |
| if (data->recv_bulk(data, urb->transfer_buffer, |
| urb->actual_length) < 0) { |
| bt_dev_err(hdev, "corrupted ACL packet"); |
| hdev->stat.err_rx++; |
| } |
| } else if (urb->status == -ENOENT) { |
| /* Avoid suspend failed when usb_kill_urb */ |
| return; |
| } |
| |
| if (!test_bit(BTUSB_BULK_RUNNING, &data->flags)) |
| return; |
| |
| usb_anchor_urb(urb, &data->bulk_anchor); |
| usb_mark_last_busy(data->udev); |
| |
| err = usb_submit_urb(urb, GFP_ATOMIC); |
| if (err < 0) { |
| /* -EPERM: urb is being killed; |
| * -ENODEV: device got disconnected |
| */ |
| if (err != -EPERM && err != -ENODEV) |
| bt_dev_err(hdev, "urb %p failed to resubmit (%d)", |
| urb, -err); |
| usb_unanchor_urb(urb); |
| } |
| } |
| |
| static int btusb_submit_bulk_urb(struct hci_dev *hdev, gfp_t mem_flags) |
| { |
| struct btusb_data *data = hci_get_drvdata(hdev); |
| struct urb *urb; |
| unsigned char *buf; |
| unsigned int pipe; |
| int err, size = HCI_MAX_FRAME_SIZE; |
| |
| BT_DBG("%s", hdev->name); |
| |
| if (!data->bulk_rx_ep) |
| return -ENODEV; |
| |
| urb = usb_alloc_urb(0, mem_flags); |
| if (!urb) |
| return -ENOMEM; |
| |
| buf = kmalloc(size, mem_flags); |
| if (!buf) { |
| usb_free_urb(urb); |
| return -ENOMEM; |
| } |
| |
| pipe = usb_rcvbulkpipe(data->udev, data->bulk_rx_ep->bEndpointAddress); |
| |
| usb_fill_bulk_urb(urb, data->udev, pipe, buf, size, |
| btusb_bulk_complete, hdev); |
| |
| urb->transfer_flags |= URB_FREE_BUFFER; |
| |
| usb_mark_last_busy(data->udev); |
| usb_anchor_urb(urb, &data->bulk_anchor); |
| |
| err = usb_submit_urb(urb, mem_flags); |
| if (err < 0) { |
| if (err != -EPERM && err != -ENODEV) |
| bt_dev_err(hdev, "urb %p submission failed (%d)", |
| urb, -err); |
| usb_unanchor_urb(urb); |
| } |
| |
| usb_free_urb(urb); |
| |
| return err; |
| } |
| |
| static void btusb_isoc_complete(struct urb *urb) |
| { |
| struct hci_dev *hdev = urb->context; |
| struct btusb_data *data = hci_get_drvdata(hdev); |
| int i, err; |
| |
| BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status, |
| urb->actual_length); |
| |
| if (!test_bit(HCI_RUNNING, &hdev->flags)) |
| return; |
| |
| if (urb->status == 0) { |
| for (i = 0; i < urb->number_of_packets; i++) { |
| unsigned int offset = urb->iso_frame_desc[i].offset; |
| unsigned int length = urb->iso_frame_desc[i].actual_length; |
| |
| if (urb->iso_frame_desc[i].status) |
| continue; |
| |
| hdev->stat.byte_rx += length; |
| |
| if (btusb_recv_isoc(data, urb->transfer_buffer + offset, |
| length) < 0) { |
| bt_dev_err(hdev, "corrupted SCO packet"); |
| hdev->stat.err_rx++; |
| } |
| } |
| } else if (urb->status == -ENOENT) { |
| /* Avoid suspend failed when usb_kill_urb */ |
| return; |
| } |
| |
| if (!test_bit(BTUSB_ISOC_RUNNING, &data->flags)) |
| return; |
| |
| usb_anchor_urb(urb, &data->isoc_anchor); |
| |
| err = usb_submit_urb(urb, GFP_ATOMIC); |
| if (err < 0) { |
| /* -EPERM: urb is being killed; |
| * -ENODEV: device got disconnected |
| */ |
| if (err != -EPERM && err != -ENODEV) |
| bt_dev_err(hdev, "urb %p failed to resubmit (%d)", |
| urb, -err); |
| usb_unanchor_urb(urb); |
| } |
| } |
| |
| static inline void __fill_isoc_descriptor_msbc(struct urb *urb, int len, |
| int mtu, struct btusb_data *data) |
| { |
| int i, offset = 0; |
| unsigned int interval; |
| |
| BT_DBG("len %d mtu %d", len, mtu); |
| |
| /* For mSBC ALT 6 setting the host will send the packet at continuous |
| * flow. As per core spec 5, vol 4, part B, table 2.1. For ALT setting |
| * 6 the HCI PACKET INTERVAL should be 7.5ms for every usb packets. |
| * To maintain the rate we send 63bytes of usb packets alternatively for |
| * 7ms and 8ms to maintain the rate as 7.5ms. |
| */ |
| if (data->usb_alt6_packet_flow) { |
| interval = 7; |
| data->usb_alt6_packet_flow = false; |
| } else { |
| interval = 6; |
| data->usb_alt6_packet_flow = true; |
| } |
| |
| for (i = 0; i < interval; i++) { |
| urb->iso_frame_desc[i].offset = offset; |
| urb->iso_frame_desc[i].length = offset; |
| } |
| |
| if (len && i < BTUSB_MAX_ISOC_FRAMES) { |
| urb->iso_frame_desc[i].offset = offset; |
| urb->iso_frame_desc[i].length = len; |
| i++; |
| } |
| |
| urb->number_of_packets = i; |
| } |
| |
| static inline void __fill_isoc_descriptor(struct urb *urb, int len, int mtu) |
| { |
| int i, offset = 0; |
| |
| BT_DBG("len %d mtu %d", len, mtu); |
| |
| for (i = 0; i < BTUSB_MAX_ISOC_FRAMES && len >= mtu; |
| i++, offset += mtu, len -= mtu) { |
| urb->iso_frame_desc[i].offset = offset; |
| urb->iso_frame_desc[i].length = mtu; |
| } |
| |
| if (len && i < BTUSB_MAX_ISOC_FRAMES) { |
| urb->iso_frame_desc[i].offset = offset; |
| urb->iso_frame_desc[i].length = len; |
| i++; |
| } |
| |
| urb->number_of_packets = i; |
| } |
| |
| static int btusb_submit_isoc_urb(struct hci_dev *hdev, gfp_t mem_flags) |
| { |
| struct btusb_data *data = hci_get_drvdata(hdev); |
| struct urb *urb; |
| unsigned char *buf; |
| unsigned int pipe; |
| int err, size; |
| |
| BT_DBG("%s", hdev->name); |
| |
| if (!data->isoc_rx_ep) |
| return -ENODEV; |
| |
| urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, mem_flags); |
| if (!urb) |
| return -ENOMEM; |
| |
| size = le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize) * |
| BTUSB_MAX_ISOC_FRAMES; |
| |
| buf = kmalloc(size, mem_flags); |
| if (!buf) { |
| usb_free_urb(urb); |
| return -ENOMEM; |
| } |
| |
| pipe = usb_rcvisocpipe(data->udev, data->isoc_rx_ep->bEndpointAddress); |
| |
| usb_fill_int_urb(urb, data->udev, pipe, buf, size, btusb_isoc_complete, |
| hdev, data->isoc_rx_ep->bInterval); |
| |
| urb->transfer_flags = URB_FREE_BUFFER | URB_ISO_ASAP; |
| |
| __fill_isoc_descriptor(urb, size, |
| le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize)); |
| |
| usb_anchor_urb(urb, &data->isoc_anchor); |
| |
| err = usb_submit_urb(urb, mem_flags); |
| if (err < 0) { |
| if (err != -EPERM && err != -ENODEV) |
| bt_dev_err(hdev, "urb %p submission failed (%d)", |
| urb, -err); |
| usb_unanchor_urb(urb); |
| } |
| |
| usb_free_urb(urb); |
| |
| return err; |
| } |
| |
| static void btusb_diag_complete(struct urb *urb) |
| { |
| struct hci_dev *hdev = urb->context; |
| struct btusb_data *data = hci_get_drvdata(hdev); |
| int err; |
| |
| BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status, |
| urb->actual_length); |
| |
| if (urb->status == 0) { |
| struct sk_buff *skb; |
| |
| skb = bt_skb_alloc(urb->actual_length, GFP_ATOMIC); |
| if (skb) { |
| skb_put_data(skb, urb->transfer_buffer, |
| urb->actual_length); |
| hci_recv_diag(hdev, skb); |
| } |
| } else if (urb->status == -ENOENT) { |
| /* Avoid suspend failed when usb_kill_urb */ |
| return; |
| } |
| |
| if (!test_bit(BTUSB_DIAG_RUNNING, &data->flags)) |
| return; |
| |
| usb_anchor_urb(urb, &data->diag_anchor); |
| usb_mark_last_busy(data->udev); |
| |
| err = usb_submit_urb(urb, GFP_ATOMIC); |
| if (err < 0) { |
| /* -EPERM: urb is being killed; |
| * -ENODEV: device got disconnected |
| */ |
| if (err != -EPERM && err != -ENODEV) |
| bt_dev_err(hdev, "urb %p failed to resubmit (%d)", |
| urb, -err); |
| usb_unanchor_urb(urb); |
| } |
| } |
| |
| static int btusb_submit_diag_urb(struct hci_dev *hdev, gfp_t mem_flags) |
| { |
| struct btusb_data *data = hci_get_drvdata(hdev); |
| struct urb *urb; |
| unsigned char *buf; |
| unsigned int pipe; |
| int err, size = HCI_MAX_FRAME_SIZE; |
| |
| BT_DBG("%s", hdev->name); |
| |
| if (!data->diag_rx_ep) |
| return -ENODEV; |
| |
| urb = usb_alloc_urb(0, mem_flags); |
| if (!urb) |
| return -ENOMEM; |
| |
| buf = kmalloc(size, mem_flags); |
| if (!buf) { |
| usb_free_urb(urb); |
| return -ENOMEM; |
| } |
| |
| pipe = usb_rcvbulkpipe(data->udev, data->diag_rx_ep->bEndpointAddress); |
| |
| usb_fill_bulk_urb(urb, data->udev, pipe, buf, size, |
| btusb_diag_complete, hdev); |
| |
| urb->transfer_flags |= URB_FREE_BUFFER; |
| |
| usb_mark_last_busy(data->udev); |
| usb_anchor_urb(urb, &data->diag_anchor); |
| |
| err = usb_submit_urb(urb, mem_flags); |
| if (err < 0) { |
| if (err != -EPERM && err != -ENODEV) |
| bt_dev_err(hdev, "urb %p submission failed (%d)", |
| urb, -err); |
| usb_unanchor_urb(urb); |
| } |
| |
| usb_free_urb(urb); |
| |
| return err; |
| } |
| |
| static void btusb_tx_complete(struct urb *urb) |
| { |
| struct sk_buff *skb = urb->context; |
| struct hci_dev *hdev = (struct hci_dev *)skb->dev; |
| struct btusb_data *data = hci_get_drvdata(hdev); |
| unsigned long flags; |
| |
| BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status, |
| urb->actual_length); |
| |
| if (!test_bit(HCI_RUNNING, &hdev->flags)) |
| goto done; |
| |
| if (!urb->status) |
| hdev->stat.byte_tx += urb->transfer_buffer_length; |
| else |
| hdev->stat.err_tx++; |
| |
| done: |
| spin_lock_irqsave(&data->txlock, flags); |
| data->tx_in_flight--; |
| spin_unlock_irqrestore(&data->txlock, flags); |
| |
| kfree(urb->setup_packet); |
| |
| kfree_skb(skb); |
| } |
| |
| static void btusb_isoc_tx_complete(struct urb *urb) |
| { |
| struct sk_buff *skb = urb->context; |
| struct hci_dev *hdev = (struct hci_dev *)skb->dev; |
| |
| BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status, |
| urb->actual_length); |
| |
| if (!test_bit(HCI_RUNNING, &hdev->flags)) |
| goto done; |
| |
| if (!urb->status) |
| hdev->stat.byte_tx += urb->transfer_buffer_length; |
| else |
| hdev->stat.err_tx++; |
| |
| done: |
| kfree(urb->setup_packet); |
| |
| kfree_skb(skb); |
| } |
| |
| static int btusb_open(struct hci_dev *hdev) |
| { |
| struct btusb_data *data = hci_get_drvdata(hdev); |
| int err; |
| |
| BT_DBG("%s", hdev->name); |
| |
| err = usb_autopm_get_interface(data->intf); |
| if (err < 0) |
| return err; |
| |
| /* Patching USB firmware files prior to starting any URBs of HCI path |
| * It is more safe to use USB bulk channel for downloading USB patch |
| */ |
| if (data->setup_on_usb) { |
| err = data->setup_on_usb(hdev); |
| if (err < 0) |
| goto setup_fail; |
| } |
| |
| data->intf->needs_remote_wakeup = 1; |
| |
| if (test_and_set_bit(BTUSB_INTR_RUNNING, &data->flags)) |
| goto done; |
| |
| err = btusb_submit_intr_urb(hdev, GFP_KERNEL); |
| if (err < 0) |
| goto failed; |
| |
| err = btusb_submit_bulk_urb(hdev, GFP_KERNEL); |
| if (err < 0) { |
| usb_kill_anchored_urbs(&data->intr_anchor); |
| goto failed; |
| } |
| |
| set_bit(BTUSB_BULK_RUNNING, &data->flags); |
| btusb_submit_bulk_urb(hdev, GFP_KERNEL); |
| |
| if (data->diag) { |
| if (!btusb_submit_diag_urb(hdev, GFP_KERNEL)) |
| set_bit(BTUSB_DIAG_RUNNING, &data->flags); |
| } |
| |
| done: |
| usb_autopm_put_interface(data->intf); |
| return 0; |
| |
| failed: |
| clear_bit(BTUSB_INTR_RUNNING, &data->flags); |
| setup_fail: |
| usb_autopm_put_interface(data->intf); |
| return err; |
| } |
| |
| static void btusb_stop_traffic(struct btusb_data *data) |
| { |
| usb_kill_anchored_urbs(&data->intr_anchor); |
| usb_kill_anchored_urbs(&data->bulk_anchor); |
| usb_kill_anchored_urbs(&data->isoc_anchor); |
| usb_kill_anchored_urbs(&data->diag_anchor); |
| usb_kill_anchored_urbs(&data->ctrl_anchor); |
| } |
| |
| static int btusb_close(struct hci_dev *hdev) |
| { |
| struct btusb_data *data = hci_get_drvdata(hdev); |
| int err; |
| |
| BT_DBG("%s", hdev->name); |
| |
| cancel_work_sync(&data->work); |
| cancel_work_sync(&data->waker); |
| |
| clear_bit(BTUSB_ISOC_RUNNING, &data->flags); |
| clear_bit(BTUSB_BULK_RUNNING, &data->flags); |
| clear_bit(BTUSB_INTR_RUNNING, &data->flags); |
| clear_bit(BTUSB_DIAG_RUNNING, &data->flags); |
| |
| btusb_stop_traffic(data); |
| btusb_free_frags(data); |
| |
| err = usb_autopm_get_interface(data->intf); |
| if (err < 0) |
| goto failed; |
| |
| data->intf->needs_remote_wakeup = 0; |
| |
| /* Enable remote wake up for auto-suspend */ |
| if (test_bit(BTUSB_WAKEUP_AUTOSUSPEND, &data->flags)) |
| data->intf->needs_remote_wakeup = 1; |
| |
| usb_autopm_put_interface(data->intf); |
| |
| failed: |
| usb_scuttle_anchored_urbs(&data->deferred); |
| return 0; |
| } |
| |
| static int btusb_flush(struct hci_dev *hdev) |
| { |
| struct btusb_data *data = hci_get_drvdata(hdev); |
| |
| BT_DBG("%s", hdev->name); |
| |
| usb_kill_anchored_urbs(&data->tx_anchor); |
| btusb_free_frags(data); |
| |
| return 0; |
| } |
| |
| static struct urb *alloc_ctrl_urb(struct hci_dev *hdev, struct sk_buff *skb) |
| { |
| struct btusb_data *data = hci_get_drvdata(hdev); |
| struct usb_ctrlrequest *dr; |
| struct urb *urb; |
| unsigned int pipe; |
| |
| urb = usb_alloc_urb(0, GFP_KERNEL); |
| if (!urb) |
| return ERR_PTR(-ENOMEM); |
| |
| dr = kmalloc(sizeof(*dr), GFP_KERNEL); |
| if (!dr) { |
| usb_free_urb(urb); |
| return ERR_PTR(-ENOMEM); |
| } |
| |
| dr->bRequestType = data->cmdreq_type; |
| dr->bRequest = data->cmdreq; |
| dr->wIndex = 0; |
| dr->wValue = 0; |
| dr->wLength = __cpu_to_le16(skb->len); |
| |
| pipe = usb_sndctrlpipe(data->udev, 0x00); |
| |
| usb_fill_control_urb(urb, data->udev, pipe, (void *)dr, |
| skb->data, skb->len, btusb_tx_complete, skb); |
| |
| skb->dev = (void *)hdev; |
| |
| return urb; |
| } |
| |
| static struct urb *alloc_bulk_urb(struct hci_dev *hdev, struct sk_buff *skb) |
| { |
| struct btusb_data *data = hci_get_drvdata(hdev); |
| struct urb *urb; |
| unsigned int pipe; |
| |
| if (!data->bulk_tx_ep) |
| return ERR_PTR(-ENODEV); |
| |
| urb = usb_alloc_urb(0, GFP_KERNEL); |
| if (!urb) |
| return ERR_PTR(-ENOMEM); |
| |
| pipe = usb_sndbulkpipe(data->udev, data->bulk_tx_ep->bEndpointAddress); |
| |
| usb_fill_bulk_urb(urb, data->udev, pipe, |
| skb->data, skb->len, btusb_tx_complete, skb); |
| |
| skb->dev = (void *)hdev; |
| |
| return urb; |
| } |
| |
| static struct urb *alloc_isoc_urb(struct hci_dev *hdev, struct sk_buff *skb) |
| { |
| struct btusb_data *data = hci_get_drvdata(hdev); |
| struct urb *urb; |
| unsigned int pipe; |
| |
| if (!data->isoc_tx_ep) |
| return ERR_PTR(-ENODEV); |
| |
| urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, GFP_KERNEL); |
| if (!urb) |
| return ERR_PTR(-ENOMEM); |
| |
| pipe = usb_sndisocpipe(data->udev, data->isoc_tx_ep->bEndpointAddress); |
| |
| usb_fill_int_urb(urb, data->udev, pipe, |
| skb->data, skb->len, btusb_isoc_tx_complete, |
| skb, data->isoc_tx_ep->bInterval); |
| |
| urb->transfer_flags = URB_ISO_ASAP; |
| |
| if (data->isoc_altsetting == 6) |
| __fill_isoc_descriptor_msbc(urb, skb->len, |
| le16_to_cpu(data->isoc_tx_ep->wMaxPacketSize), |
| data); |
| else |
| __fill_isoc_descriptor(urb, skb->len, |
| le16_to_cpu(data->isoc_tx_ep->wMaxPacketSize)); |
| skb->dev = (void *)hdev; |
| |
| return urb; |
| } |
| |
| static int submit_tx_urb(struct hci_dev *hdev, struct urb *urb) |
| { |
| struct btusb_data *data = hci_get_drvdata(hdev); |
| int err; |
| |
| usb_anchor_urb(urb, &data->tx_anchor); |
| |
| err = usb_submit_urb(urb, GFP_KERNEL); |
| if (err < 0) { |
| if (err != -EPERM && err != -ENODEV) |
| bt_dev_err(hdev, "urb %p submission failed (%d)", |
| urb, -err); |
| kfree(urb->setup_packet); |
| usb_unanchor_urb(urb); |
| } else { |
| usb_mark_last_busy(data->udev); |
| } |
| |
| usb_free_urb(urb); |
| return err; |
| } |
| |
| static int submit_or_queue_tx_urb(struct hci_dev *hdev, struct urb *urb) |
| { |
| struct btusb_data *data = hci_get_drvdata(hdev); |
| unsigned long flags; |
| bool suspending; |
| |
| spin_lock_irqsave(&data->txlock, flags); |
| suspending = test_bit(BTUSB_SUSPENDING, &data->flags); |
| if (!suspending) |
| data->tx_in_flight++; |
| spin_unlock_irqrestore(&data->txlock, flags); |
| |
| if (!suspending) |
| return submit_tx_urb(hdev, urb); |
| |
| usb_anchor_urb(urb, &data->deferred); |
| schedule_work(&data->waker); |
| |
| usb_free_urb(urb); |
| return 0; |
| } |
| |
| static int btusb_send_frame(struct hci_dev *hdev, struct sk_buff *skb) |
| { |
| struct urb *urb; |
| |
| BT_DBG("%s", hdev->name); |
| |
| switch (hci_skb_pkt_type(skb)) { |
| case HCI_COMMAND_PKT: |
| urb = alloc_ctrl_urb(hdev, skb); |
| if (IS_ERR(urb)) |
| return PTR_ERR(urb); |
| |
| hdev->stat.cmd_tx++; |
| return submit_or_queue_tx_urb(hdev, urb); |
| |
| case HCI_ACLDATA_PKT: |
| urb = alloc_bulk_urb(hdev, skb); |
| if (IS_ERR(urb)) |
| return PTR_ERR(urb); |
| |
| hdev->stat.acl_tx++; |
| return submit_or_queue_tx_urb(hdev, urb); |
| |
| case HCI_SCODATA_PKT: |
| if (hci_conn_num(hdev, SCO_LINK) < 1) |
| return -ENODEV; |
| |
| urb = alloc_isoc_urb(hdev, skb); |
| if (IS_ERR(urb)) |
| return PTR_ERR(urb); |
| |
| hdev->stat.sco_tx++; |
| return submit_tx_urb(hdev, urb); |
| } |
| |
| return -EILSEQ; |
| } |
| |
| static void btusb_notify(struct hci_dev *hdev, unsigned int evt) |
| { |
| struct btusb_data *data = hci_get_drvdata(hdev); |
| |
| BT_DBG("%s evt %d", hdev->name, evt); |
| |
| if (hci_conn_num(hdev, SCO_LINK) != data->sco_num) { |
| data->sco_num = hci_conn_num(hdev, SCO_LINK); |
| data->air_mode = evt; |
| schedule_work(&data->work); |
| } |
| } |
| |
| static inline int __set_isoc_interface(struct hci_dev *hdev, int altsetting) |
| { |
| struct btusb_data *data = hci_get_drvdata(hdev); |
| struct usb_interface *intf = data->isoc; |
| struct usb_endpoint_descriptor *ep_desc; |
| int i, err; |
| |
| if (!data->isoc) |
| return -ENODEV; |
| |
| err = usb_set_interface(data->udev, data->isoc_ifnum, altsetting); |
| if (err < 0) { |
| bt_dev_err(hdev, "setting interface failed (%d)", -err); |
| return err; |
| } |
| |
| data->isoc_altsetting = altsetting; |
| |
| data->isoc_tx_ep = NULL; |
| data->isoc_rx_ep = NULL; |
| |
| for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) { |
| ep_desc = &intf->cur_altsetting->endpoint[i].desc; |
| |
| if (!data->isoc_tx_ep && usb_endpoint_is_isoc_out(ep_desc)) { |
| data->isoc_tx_ep = ep_desc; |
| continue; |
| } |
| |
| if (!data->isoc_rx_ep && usb_endpoint_is_isoc_in(ep_desc)) { |
| data->isoc_rx_ep = ep_desc; |
| continue; |
| } |
| } |
| |
| if (!data->isoc_tx_ep || !data->isoc_rx_ep) { |
| bt_dev_err(hdev, "invalid SCO descriptors"); |
| return -ENODEV; |
| } |
| |
| return 0; |
| } |
| |
| static int btusb_switch_alt_setting(struct hci_dev *hdev, int new_alts) |
| { |
| struct btusb_data *data = hci_get_drvdata(hdev); |
| int err; |
| |
| if (data->isoc_altsetting != new_alts) { |
| unsigned long flags; |
| |
| clear_bit(BTUSB_ISOC_RUNNING, &data->flags); |
| usb_kill_anchored_urbs(&data->isoc_anchor); |
| |
| /* When isochronous alternate setting needs to be |
| * changed, because SCO connection has been added |
| * or removed, a packet fragment may be left in the |
| * reassembling state. This could lead to wrongly |
| * assembled fragments. |
| * |
| * Clear outstanding fragment when selecting a new |
| * alternate setting. |
| */ |
| spin_lock_irqsave(&data->rxlock, flags); |
| kfree_skb(data->sco_skb); |
| data->sco_skb = NULL; |
| spin_unlock_irqrestore(&data->rxlock, flags); |
| |
| err = __set_isoc_interface(hdev, new_alts); |
| if (err < 0) |
| return err; |
| } |
| |
| if (!test_and_set_bit(BTUSB_ISOC_RUNNING, &data->flags)) { |
| if (btusb_submit_isoc_urb(hdev, GFP_KERNEL) < 0) |
| clear_bit(BTUSB_ISOC_RUNNING, &data->flags); |
| else |
| btusb_submit_isoc_urb(hdev, GFP_KERNEL); |
| } |
| |
| return 0; |
| } |
| |
| static struct usb_host_interface *btusb_find_altsetting(struct btusb_data *data, |
| int alt) |
| { |
| struct usb_interface *intf = data->isoc; |
| int i; |
| |
| BT_DBG("Looking for Alt no :%d", alt); |
| |
| if (!intf) |
| return NULL; |
| |
| for (i = 0; i < intf->num_altsetting; i++) { |
| if (intf->altsetting[i].desc.bAlternateSetting == alt) |
| return &intf->altsetting[i]; |
| } |
| |
| return NULL; |
| } |
| |
| static void btusb_work(struct work_struct *work) |
| { |
| struct btusb_data *data = container_of(work, struct btusb_data, work); |
| struct hci_dev *hdev = data->hdev; |
| int new_alts = 0; |
| int err; |
| |
| if (data->sco_num > 0) { |
| if (!test_bit(BTUSB_DID_ISO_RESUME, &data->flags)) { |
| err = usb_autopm_get_interface(data->isoc ? data->isoc : data->intf); |
| if (err < 0) { |
| clear_bit(BTUSB_ISOC_RUNNING, &data->flags); |
| usb_kill_anchored_urbs(&data->isoc_anchor); |
| return; |
| } |
| |
| set_bit(BTUSB_DID_ISO_RESUME, &data->flags); |
| } |
| |
| if (data->air_mode == HCI_NOTIFY_ENABLE_SCO_CVSD) { |
| if (hdev->voice_setting & 0x0020) { |
| static const int alts[3] = { 2, 4, 5 }; |
| |
| new_alts = alts[data->sco_num - 1]; |
| } else { |
| new_alts = data->sco_num; |
| } |
| } else if (data->air_mode == HCI_NOTIFY_ENABLE_SCO_TRANSP) { |
| /* Bluetooth USB spec recommends alt 6 (63 bytes), but |
| * many adapters do not support it. Alt 1 appears to |
| * work for all adapters that do not have alt 6, and |
| * which work with WBS at all. Some devices prefer |
| * alt 3 (HCI payload >= 60 Bytes let air packet |
| * data satisfy 60 bytes), requiring |
| * MTU >= 3 (packets) * 25 (size) - 3 (headers) = 72 |
| * see also Core spec 5, vol 4, B 2.1.1 & Table 2.1. |
| */ |
| if (btusb_find_altsetting(data, 6)) |
| new_alts = 6; |
| else if (btusb_find_altsetting(data, 3) && |
| hdev->sco_mtu >= 72 && |
| test_bit(BTUSB_USE_ALT3_FOR_WBS, &data->flags)) |
| new_alts = 3; |
| else |
| new_alts = 1; |
| } |
| |
| if (btusb_switch_alt_setting(hdev, new_alts) < 0) |
| bt_dev_err(hdev, "set USB alt:(%d) failed!", new_alts); |
| } else { |
| clear_bit(BTUSB_ISOC_RUNNING, &data->flags); |
| usb_kill_anchored_urbs(&data->isoc_anchor); |
| |
| __set_isoc_interface(hdev, 0); |
| if (test_and_clear_bit(BTUSB_DID_ISO_RESUME, &data->flags)) |
| usb_autopm_put_interface(data->isoc ? data->isoc : data->intf); |
| } |
| } |
| |
| static void btusb_waker(struct work_struct *work) |
| { |
| struct btusb_data *data = container_of(work, struct btusb_data, waker); |
| int err; |
| |
| err = usb_autopm_get_interface(data->intf); |
| if (err < 0) |
| return; |
| |
| usb_autopm_put_interface(data->intf); |
| } |
| |
| static int btusb_setup_bcm92035(struct hci_dev *hdev) |
| { |
| struct sk_buff *skb; |
| u8 val = 0x00; |
| |
| BT_DBG("%s", hdev->name); |
| |
| skb = __hci_cmd_sync(hdev, 0xfc3b, 1, &val, HCI_INIT_TIMEOUT); |
| if (IS_ERR(skb)) |
| bt_dev_err(hdev, "BCM92035 command failed (%ld)", PTR_ERR(skb)); |
| else |
| kfree_skb(skb); |
| |
| return 0; |
| } |
| |
| static int btusb_setup_csr(struct hci_dev *hdev) |
| { |
| struct btusb_data *data = hci_get_drvdata(hdev); |
| u16 bcdDevice = le16_to_cpu(data->udev->descriptor.bcdDevice); |
| struct hci_rp_read_local_version *rp; |
| struct sk_buff *skb; |
| bool is_fake = false; |
| int ret; |
| |
| BT_DBG("%s", hdev->name); |
| |
| skb = __hci_cmd_sync(hdev, HCI_OP_READ_LOCAL_VERSION, 0, NULL, |
| HCI_INIT_TIMEOUT); |
| if (IS_ERR(skb)) { |
| int err = PTR_ERR(skb); |
| bt_dev_err(hdev, "CSR: Local version failed (%d)", err); |
| return err; |
| } |
| |
| if (skb->len != sizeof(struct hci_rp_read_local_version)) { |
| bt_dev_err(hdev, "CSR: Local version length mismatch"); |
| kfree_skb(skb); |
| return -EIO; |
| } |
| |
| rp = (struct hci_rp_read_local_version *)skb->data; |
| |
| /* Detect a wide host of Chinese controllers that aren't CSR. |
| * |
| * Known fake bcdDevices: 0x0100, 0x0134, 0x1915, 0x2520, 0x7558, 0x8891 |
| * |
| * The main thing they have in common is that these are really popular low-cost |
| * options that support newer Bluetooth versions but rely on heavy VID/PID |
| * squatting of this poor old Bluetooth 1.1 device. Even sold as such. |
| * |
| * We detect actual CSR devices by checking that the HCI manufacturer code |
| * is Cambridge Silicon Radio (10) and ensuring that LMP sub-version and |
| * HCI rev values always match. As they both store the firmware number. |
| */ |
| if (le16_to_cpu(rp->manufacturer) != 10 || |
| le16_to_cpu(rp->hci_rev) != le16_to_cpu(rp->lmp_subver)) |
| is_fake = true; |
| |
| /* Known legit CSR firmware build numbers and their supported BT versions: |
| * - 1.1 (0x1) -> 0x0073, 0x020d, 0x033c, 0x034e |
| * - 1.2 (0x2) -> 0x04d9, 0x0529 |
| * - 2.0 (0x3) -> 0x07a6, 0x07ad, 0x0c5c |
| * - 2.1 (0x4) -> 0x149c, 0x1735, 0x1899 (0x1899 is a BlueCore4-External) |
| * - 4.0 (0x6) -> 0x1d86, 0x2031, 0x22bb |
| * |
| * e.g. Real CSR dongles with LMP subversion 0x73 are old enough that |
| * support BT 1.1 only; so it's a dead giveaway when some |
| * third-party BT 4.0 dongle reuses it. |
| */ |
| else if (le16_to_cpu(rp->lmp_subver) <= 0x034e && |
| le16_to_cpu(rp->hci_ver) > BLUETOOTH_VER_1_1) |
| is_fake = true; |
| |
| else if (le16_to_cpu(rp->lmp_subver) <= 0x0529 && |
| le16_to_cpu(rp->hci_ver) > BLUETOOTH_VER_1_2) |
| is_fake = true; |
| |
| else if (le16_to_cpu(rp->lmp_subver) <= 0x0c5c && |
| le16_to_cpu(rp->hci_ver) > BLUETOOTH_VER_2_0) |
| is_fake = true; |
| |
| else if (le16_to_cpu(rp->lmp_subver) <= 0x1899 && |
| le16_to_cpu(rp->hci_ver) > BLUETOOTH_VER_2_1) |
| is_fake = true; |
| |
| else if (le16_to_cpu(rp->lmp_subver) <= 0x22bb && |
| le16_to_cpu(rp->hci_ver) > BLUETOOTH_VER_4_0) |
| is_fake = true; |
| |
| /* Other clones which beat all the above checks */ |
| else if (bcdDevice == 0x0134 && |
| le16_to_cpu(rp->lmp_subver) == 0x0c5c && |
| le16_to_cpu(rp->hci_ver) == BLUETOOTH_VER_2_0) |
| is_fake = true; |
| |
| if (is_fake) { |
| bt_dev_warn(hdev, "CSR: Unbranded CSR clone detected; adding workarounds and force-suspending once..."); |
| |
| /* Generally these clones have big discrepancies between |
| * advertised features and what's actually supported. |
| * Probably will need to be expanded in the future; |
| * without these the controller will lock up. |
| */ |
| set_bit(HCI_QUIRK_BROKEN_STORED_LINK_KEY, &hdev->quirks); |
| set_bit(HCI_QUIRK_BROKEN_ERR_DATA_REPORTING, &hdev->quirks); |
| |
| /* Clear the reset quirk since this is not an actual |
| * early Bluetooth 1.1 device from CSR. |
| */ |
| clear_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks); |
| clear_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks); |
| |
| /* |
| * Special workaround for these BT 4.0 chip clones, and potentially more: |
| * |
| * - 0x0134: a Barrot 8041a02 (HCI rev: 0x1012 sub: 0x0810) |
| * - 0x7558: IC markings FR3191AHAL 749H15143 (HCI rev/sub-version: 0x0709) |
| * |
| * These controllers are really messed-up. |
| * |
| * 1. Their bulk RX endpoint will never report any data unless |
| * the device was suspended at least once (yes, really). |
| * 2. They will not wakeup when autosuspended and receiving data |
| * on their bulk RX endpoint from e.g. a keyboard or mouse |
| * (IOW remote-wakeup support is broken for the bulk endpoint). |
| * |
| * To fix 1. enable runtime-suspend, force-suspend the |
| * HCI and then wake-it up by disabling runtime-suspend. |
| * |
| * To fix 2. clear the HCI's can_wake flag, this way the HCI |
| * will still be autosuspended when it is not open. |
| * |
| * -- |
| * |
| * Because these are widespread problems we prefer generic solutions; so |
| * apply this initialization quirk to every controller that gets here, |
| * it should be harmless. The alternative is to not work at all. |
| */ |
| pm_runtime_allow(&data->udev->dev); |
| |
| ret = pm_runtime_suspend(&data->udev->dev); |
| if (ret >= 0) |
| msleep(200); |
| else |
| bt_dev_err(hdev, "CSR: Failed to suspend the device for our Barrot 8041a02 receive-issue workaround"); |
| |
| pm_runtime_forbid(&data->udev->dev); |
| |
| device_set_wakeup_capable(&data->udev->dev, false); |
| |
| /* Re-enable autosuspend if this was requested */ |
| if (enable_autosuspend) |
| usb_enable_autosuspend(data->udev); |
| } |
| |
| kfree_skb(skb); |
| |
| return 0; |
| } |
| |
| static int inject_cmd_complete(struct hci_dev *hdev, __u16 opcode) |
| { |
| struct sk_buff *skb; |
| struct hci_event_hdr *hdr; |
| struct hci_ev_cmd_complete *evt; |
| |
| skb = bt_skb_alloc(sizeof(*hdr) + sizeof(*evt) + 1, GFP_KERNEL); |
| if (!skb) |
| return -ENOMEM; |
| |
| hdr = skb_put(skb, sizeof(*hdr)); |
| hdr->evt = HCI_EV_CMD_COMPLETE; |
| hdr->plen = sizeof(*evt) + 1; |
| |
| evt = skb_put(skb, sizeof(*evt)); |
| evt->ncmd = 0x01; |
| evt->opcode = cpu_to_le16(opcode); |
| |
| skb_put_u8(skb, 0x00); |
| |
| hci_skb_pkt_type(skb) = HCI_EVENT_PKT; |
| |
| return hci_recv_frame(hdev, skb); |
| } |
| |
| static int btusb_recv_bulk_intel(struct btusb_data *data, void *buffer, |
| int count) |
| { |
| struct hci_dev *hdev = data->hdev; |
| |
| /* When the device is in bootloader mode, then it can send |
| * events via the bulk endpoint. These events are treated the |
| * same way as the ones received from the interrupt endpoint. |
| */ |
| if (btintel_test_flag(hdev, INTEL_BOOTLOADER)) |
| return btusb_recv_intr(data, buffer, count); |
| |
| return btusb_recv_bulk(data, buffer, count); |
| } |
| |
| static int btusb_recv_event_intel(struct hci_dev *hdev, struct sk_buff *skb) |
| { |
| if (btintel_test_flag(hdev, INTEL_BOOTLOADER)) { |
| struct hci_event_hdr *hdr = (void *)skb->data; |
| |
| if (skb->len > HCI_EVENT_HDR_SIZE && hdr->evt == 0xff && |
| hdr->plen > 0) { |
| const void *ptr = skb->data + HCI_EVENT_HDR_SIZE + 1; |
| unsigned int len = skb->len - HCI_EVENT_HDR_SIZE - 1; |
| |
| switch (skb->data[2]) { |
| case 0x02: |
| /* When switching to the operational firmware |
| * the device sends a vendor specific event |
| * indicating that the bootup completed. |
| */ |
| btintel_bootup(hdev, ptr, len); |
| break; |
| case 0x06: |
| /* When the firmware loading completes the |
| * device sends out a vendor specific event |
| * indicating the result of the firmware |
| * loading. |
| */ |
| btintel_secure_send_result(hdev, ptr, len); |
| break; |
| } |
| } |
| } |
| |
| return hci_recv_frame(hdev, skb); |
| } |
| |
| static int btusb_send_frame_intel(struct hci_dev *hdev, struct sk_buff *skb) |
| { |
| struct urb *urb; |
| |
| BT_DBG("%s", hdev->name); |
| |
| switch (hci_skb_pkt_type(skb)) { |
| case HCI_COMMAND_PKT: |
| if (btintel_test_flag(hdev, INTEL_BOOTLOADER)) { |
| struct hci_command_hdr *cmd = (void *)skb->data; |
| __u16 opcode = le16_to_cpu(cmd->opcode); |
| |
| /* When in bootloader mode and the command 0xfc09 |
| * is received, it needs to be send down the |
| * bulk endpoint. So allocate a bulk URB instead. |
| */ |
| if (opcode == 0xfc09) |
| urb = alloc_bulk_urb(hdev, skb); |
| else |
| urb = alloc_ctrl_urb(hdev, skb); |
| |
| /* When the 0xfc01 command is issued to boot into |
| * the operational firmware, it will actually not |
| * send a command complete event. To keep the flow |
| * control working inject that event here. |
| */ |
| if (opcode == 0xfc01) |
| inject_cmd_complete(hdev, opcode); |
| } else { |
| urb = alloc_ctrl_urb(hdev, skb); |
| } |
| if (IS_ERR(urb)) |
| return PTR_ERR(urb); |
| |
| hdev->stat.cmd_tx++; |
| return submit_or_queue_tx_urb(hdev, urb); |
| |
| case HCI_ACLDATA_PKT: |
| urb = alloc_bulk_urb(hdev, skb); |
| if (IS_ERR(urb)) |
| return PTR_ERR(urb); |
| |
| hdev->stat.acl_tx++; |
| return submit_or_queue_tx_urb(hdev, urb); |
| |
| case HCI_SCODATA_PKT: |
| if (hci_conn_num(hdev, SCO_LINK) < 1) |
| return -ENODEV; |
| |
| urb = alloc_isoc_urb(hdev, skb); |
| if (IS_ERR(urb)) |
| return PTR_ERR(urb); |
| |
| hdev->stat.sco_tx++; |
| return submit_tx_urb(hdev, urb); |
| } |
| |
| return -EILSEQ; |
| } |
| |
| /* UHW CR mapping */ |
| #define MTK_BT_MISC 0x70002510 |
| #define MTK_BT_SUBSYS_RST 0x70002610 |
| #define MTK_UDMA_INT_STA_BT 0x74000024 |
| #define MTK_UDMA_INT_STA_BT1 0x74000308 |
| #define MTK_BT_WDT_STATUS 0x740003A0 |
| #define MTK_EP_RST_OPT 0x74011890 |
| #define MTK_EP_RST_IN_OUT_OPT 0x00010001 |
| #define MTK_BT_RST_DONE 0x00000100 |
| #define MTK_BT_RESET_WAIT_MS 100 |
| #define MTK_BT_RESET_NUM_TRIES 10 |
| #define FIRMWARE_MT7663 "mediatek/mt7663pr2h.bin" |
| #define FIRMWARE_MT7668 "mediatek/mt7668pr2h.bin" |
| |
| #define HCI_WMT_MAX_EVENT_SIZE 64 |
| /* It is for mt79xx download rom patch*/ |
| #define MTK_FW_ROM_PATCH_HEADER_SIZE 32 |
| #define MTK_FW_ROM_PATCH_GD_SIZE 64 |
| #define MTK_FW_ROM_PATCH_SEC_MAP_SIZE 64 |
| #define MTK_SEC_MAP_COMMON_SIZE 12 |
| #define MTK_SEC_MAP_NEED_SEND_SIZE 52 |
| |
| enum { |
| BTMTK_WMT_PATCH_DWNLD = 0x1, |
| BTMTK_WMT_FUNC_CTRL = 0x6, |
| BTMTK_WMT_RST = 0x7, |
| BTMTK_WMT_SEMAPHORE = 0x17, |
| }; |
| |
| enum { |
| BTMTK_WMT_INVALID, |
| BTMTK_WMT_PATCH_UNDONE, |
| BTMTK_WMT_PATCH_PROGRESS, |
| BTMTK_WMT_PATCH_DONE, |
| BTMTK_WMT_ON_UNDONE, |
| BTMTK_WMT_ON_DONE, |
| BTMTK_WMT_ON_PROGRESS, |
| }; |
| |
| struct btmtk_wmt_hdr { |
| u8 dir; |
| u8 op; |
| __le16 dlen; |
| u8 flag; |
| } __packed; |
| |
| struct btmtk_hci_wmt_cmd { |
| struct btmtk_wmt_hdr hdr; |
| u8 data[]; |
| } __packed; |
| |
| struct btmtk_hci_wmt_evt { |
| struct hci_event_hdr hhdr; |
| struct btmtk_wmt_hdr whdr; |
| } __packed; |
| |
| struct btmtk_hci_wmt_evt_funcc { |
| struct btmtk_hci_wmt_evt hwhdr; |
| __be16 status; |
| } __packed; |
| |
| struct btmtk_tci_sleep { |
| u8 mode; |
| __le16 duration; |
| __le16 host_duration; |
| u8 host_wakeup_pin; |
| u8 time_compensation; |
| } __packed; |
| |
| struct btmtk_hci_wmt_params { |
| u8 op; |
| u8 flag; |
| u16 dlen; |
| const void *data; |
| u32 *status; |
| }; |
| |
| struct btmtk_patch_header { |
| u8 datetime[16]; |
| u8 platform[4]; |
| __le16 hwver; |
| __le16 swver; |
| __le32 magicnum; |
| } __packed; |
| |
| struct btmtk_global_desc { |
| __le32 patch_ver; |
| __le32 sub_sys; |
| __le32 feature_opt; |
| __le32 section_num; |
| } __packed; |
| |
| struct btmtk_section_map { |
| __le32 sectype; |
| __le32 secoffset; |
| __le32 secsize; |
| union { |
| __le32 u4SecSpec[13]; |
| struct { |
| __le32 dlAddr; |
| __le32 dlsize; |
| __le32 seckeyidx; |
| __le32 alignlen; |
| __le32 sectype; |
| __le32 dlmodecrctype; |
| __le32 crc; |
| __le32 reserved[6]; |
| } bin_info_spec; |
| }; |
| } __packed; |
| |
| static void btusb_mtk_wmt_recv(struct urb *urb) |
| { |
| struct hci_dev *hdev = urb->context; |
| struct btusb_data *data = hci_get_drvdata(hdev); |
| struct hci_event_hdr *hdr; |
| struct sk_buff *skb; |
| int err; |
| |
| if (urb->status == 0 && urb->actual_length > 0) { |
| hdev->stat.byte_rx += urb->actual_length; |
| |
| /* WMT event shouldn't be fragmented and the size should be |
| * less than HCI_WMT_MAX_EVENT_SIZE. |
| */ |
| skb = bt_skb_alloc(HCI_WMT_MAX_EVENT_SIZE, GFP_ATOMIC); |
| if (!skb) { |
| hdev->stat.err_rx++; |
| return; |
| } |
| |
| hci_skb_pkt_type(skb) = HCI_EVENT_PKT; |
| skb_put_data(skb, urb->transfer_buffer, urb->actual_length); |
| |
| hdr = (void *)skb->data; |
| /* Fix up the vendor event id with 0xff for vendor specific |
| * instead of 0xe4 so that event send via monitoring socket can |
| * be parsed properly. |
| */ |
| hdr->evt = 0xff; |
| |
| /* When someone waits for the WMT event, the skb is being cloned |
| * and being processed the events from there then. |
| */ |
| if (test_bit(BTUSB_TX_WAIT_VND_EVT, &data->flags)) { |
| data->evt_skb = skb_clone(skb, GFP_ATOMIC); |
| if (!data->evt_skb) { |
| kfree_skb(skb); |
| return; |
| } |
| } |
| |
| err = hci_recv_frame(hdev, skb); |
| if (err < 0) { |
| kfree_skb(data->evt_skb); |
| data->evt_skb = NULL; |
| return; |
| } |
| |
| if (test_and_clear_bit(BTUSB_TX_WAIT_VND_EVT, |
| &data->flags)) { |
| /* Barrier to sync with other CPUs */ |
| smp_mb__after_atomic(); |
| wake_up_bit(&data->flags, |
| BTUSB_TX_WAIT_VND_EVT); |
| } |
| return; |
| } else if (urb->status == -ENOENT) { |
| /* Avoid suspend failed when usb_kill_urb */ |
| return; |
| } |
| |
| usb_mark_last_busy(data->udev); |
| |
| /* The URB complete handler is still called with urb->actual_length = 0 |
| * when the event is not available, so we should keep re-submitting |
| * URB until WMT event returns, Also, It's necessary to wait some time |
| * between the two consecutive control URBs to relax the target device |
| * to generate the event. Otherwise, the WMT event cannot return from |
| * the device successfully. |
| */ |
| udelay(500); |
| |
| usb_anchor_urb(urb, &data->ctrl_anchor); |
| err = usb_submit_urb(urb, GFP_ATOMIC); |
| if (err < 0) { |
| /* -EPERM: urb is being killed; |
| * -ENODEV: device got disconnected |
| */ |
| if (err != -EPERM && err != -ENODEV) |
| bt_dev_err(hdev, "urb %p failed to resubmit (%d)", |
| urb, -err); |
| usb_unanchor_urb(urb); |
| } |
| } |
| |
| static int btusb_mtk_submit_wmt_recv_urb(struct hci_dev *hdev) |
| { |
| struct btusb_data *data = hci_get_drvdata(hdev); |
| struct usb_ctrlrequest *dr; |
| unsigned char *buf; |
| int err, size = 64; |
| unsigned int pipe; |
| struct urb *urb; |
| |
| urb = usb_alloc_urb(0, GFP_KERNEL); |
| if (!urb) |
| return -ENOMEM; |
| |
| dr = kmalloc(sizeof(*dr), GFP_KERNEL); |
| if (!dr) { |
| usb_free_urb(urb); |
| return -ENOMEM; |
| } |
| |
| dr->bRequestType = USB_TYPE_VENDOR | USB_DIR_IN; |
| dr->bRequest = 1; |
| dr->wIndex = cpu_to_le16(0); |
| dr->wValue = cpu_to_le16(48); |
| dr->wLength = cpu_to_le16(size); |
| |
| buf = kmalloc(size, GFP_KERNEL); |
| if (!buf) { |
| kfree(dr); |
| usb_free_urb(urb); |
| return -ENOMEM; |
| } |
| |
| pipe = usb_rcvctrlpipe(data->udev, 0); |
| |
| usb_fill_control_urb(urb, data->udev, pipe, (void *)dr, |
| buf, size, btusb_mtk_wmt_recv, hdev); |
| |
| urb->transfer_flags |= URB_FREE_BUFFER; |
| |
| usb_anchor_urb(urb, &data->ctrl_anchor); |
| err = usb_submit_urb(urb, GFP_KERNEL); |
| if (err < 0) { |
| if (err != -EPERM && err != -ENODEV) |
| bt_dev_err(hdev, "urb %p submission failed (%d)", |
| urb, -err); |
| usb_unanchor_urb(urb); |
| } |
| |
| usb_free_urb(urb); |
| |
| return err; |
| } |
| |
| static int btusb_mtk_hci_wmt_sync(struct hci_dev *hdev, |
| struct btmtk_hci_wmt_params *wmt_params) |
| { |
| struct btusb_data *data = hci_get_drvdata(hdev); |
| struct btmtk_hci_wmt_evt_funcc *wmt_evt_funcc; |
| u32 hlen, status = BTMTK_WMT_INVALID; |
| struct btmtk_hci_wmt_evt *wmt_evt; |
| struct btmtk_hci_wmt_cmd *wc; |
| struct btmtk_wmt_hdr *hdr; |
| int err; |
| |
| /* Send the WMT command and wait until the WMT event returns */ |
| hlen = sizeof(*hdr) + wmt_params->dlen; |
| if (hlen > 255) |
| return -EINVAL; |
| |
| wc = kzalloc(hlen, GFP_KERNEL); |
| if (!wc) |
| return -ENOMEM; |
| |
| hdr = &wc->hdr; |
| hdr->dir = 1; |
| hdr->op = wmt_params->op; |
| hdr->dlen = cpu_to_le16(wmt_params->dlen + 1); |
| hdr->flag = wmt_params->flag; |
| memcpy(wc->data, wmt_params->data, wmt_params->dlen); |
| |
| set_bit(BTUSB_TX_WAIT_VND_EVT, &data->flags); |
| |
| err = __hci_cmd_send(hdev, 0xfc6f, hlen, wc); |
| |
| if (err < 0) { |
| clear_bit(BTUSB_TX_WAIT_VND_EVT, &data->flags); |
| goto err_free_wc; |
| } |
| |
| /* Submit control IN URB on demand to process the WMT event */ |
| err = btusb_mtk_submit_wmt_recv_urb(hdev); |
| if (err < 0) |
| goto err_free_wc; |
| |
| /* The vendor specific WMT commands are all answered by a vendor |
| * specific event and will have the Command Status or Command |
| * Complete as with usual HCI command flow control. |
| * |
| * After sending the command, wait for BTUSB_TX_WAIT_VND_EVT |
| * state to be cleared. The driver specific event receive routine |
| * will clear that state and with that indicate completion of the |
| * WMT command. |
| */ |
| err = wait_on_bit_timeout(&data->flags, BTUSB_TX_WAIT_VND_EVT, |
| TASK_INTERRUPTIBLE, HCI_INIT_TIMEOUT); |
| if (err == -EINTR) { |
| bt_dev_err(hdev, "Execution of wmt command interrupted"); |
| clear_bit(BTUSB_TX_WAIT_VND_EVT, &data->flags); |
| goto err_free_wc; |
| } |
| |
| if (err) { |
| bt_dev_err(hdev, "Execution of wmt command timed out"); |
| clear_bit(BTUSB_TX_WAIT_VND_EVT, &data->flags); |
| err = -ETIMEDOUT; |
| goto err_free_wc; |
| } |
| |
| /* Parse and handle the return WMT event */ |
| wmt_evt = (struct btmtk_hci_wmt_evt *)data->evt_skb->data; |
| if (wmt_evt->whdr.op != hdr->op) { |
| bt_dev_err(hdev, "Wrong op received %d expected %d", |
| wmt_evt->whdr.op, hdr->op); |
| err = -EIO; |
| goto err_free_skb; |
| } |
| |
| switch (wmt_evt->whdr.op) { |
| case BTMTK_WMT_SEMAPHORE: |
| if (wmt_evt->whdr.flag == 2) |
| status = BTMTK_WMT_PATCH_UNDONE; |
| else |
| status = BTMTK_WMT_PATCH_DONE; |
| break; |
| case BTMTK_WMT_FUNC_CTRL: |
| wmt_evt_funcc = (struct btmtk_hci_wmt_evt_funcc *)wmt_evt; |
| if (be16_to_cpu(wmt_evt_funcc->status) == 0x404) |
| status = BTMTK_WMT_ON_DONE; |
| else if (be16_to_cpu(wmt_evt_funcc->status) == 0x420) |
| status = BTMTK_WMT_ON_PROGRESS; |
| else |
| status = BTMTK_WMT_ON_UNDONE; |
| break; |
| case BTMTK_WMT_PATCH_DWNLD: |
| if (wmt_evt->whdr.flag == 2) |
| status = BTMTK_WMT_PATCH_DONE; |
| else if (wmt_evt->whdr.flag == 1) |
| status = BTMTK_WMT_PATCH_PROGRESS; |
| else |
| status = BTMTK_WMT_PATCH_UNDONE; |
| break; |
| } |
| |
| if (wmt_params->status) |
| *wmt_params->status = status; |
| |
| err_free_skb: |
| kfree_skb(data->evt_skb); |
| data->evt_skb = NULL; |
| err_free_wc: |
| kfree(wc); |
| return err; |
| } |
| |
| static int btusb_mtk_setup_firmware_79xx(struct hci_dev *hdev, const char *fwname) |
| { |
| struct btmtk_hci_wmt_params wmt_params; |
| struct btmtk_global_desc *globaldesc = NULL; |
| struct btmtk_section_map *sectionmap; |
| const struct firmware *fw; |
| const u8 *fw_ptr; |
| const u8 *fw_bin_ptr; |
| int err, dlen, i, status; |
| u8 flag, first_block, retry; |
| u32 section_num, dl_size, section_offset; |
| u8 cmd[64]; |
| |
| err = request_firmware(&fw, fwname, &hdev->dev); |
| if (err < 0) { |
| bt_dev_err(hdev, "Failed to load firmware file (%d)", err); |
| return err; |
| } |
| |
| fw_ptr = fw->data; |
| fw_bin_ptr = fw_ptr; |
| globaldesc = (struct btmtk_global_desc *)(fw_ptr + MTK_FW_ROM_PATCH_HEADER_SIZE); |
| section_num = le32_to_cpu(globaldesc->section_num); |
| |
| for (i = 0; i < section_num; i++) { |
| first_block = 1; |
| fw_ptr = fw_bin_ptr; |
| sectionmap = (struct btmtk_section_map *)(fw_ptr + MTK_FW_ROM_PATCH_HEADER_SIZE + |
| MTK_FW_ROM_PATCH_GD_SIZE + MTK_FW_ROM_PATCH_SEC_MAP_SIZE * i); |
| |
| section_offset = le32_to_cpu(sectionmap->secoffset); |
| dl_size = le32_to_cpu(sectionmap->bin_info_spec.dlsize); |
| |
| if (dl_size > 0) { |
| retry = 20; |
| while (retry > 0) { |
| cmd[0] = 0; /* 0 means legacy dl mode. */ |
| memcpy(cmd + 1, |
| fw_ptr + MTK_FW_ROM_PATCH_HEADER_SIZE + |
| MTK_FW_ROM_PATCH_GD_SIZE + MTK_FW_ROM_PATCH_SEC_MAP_SIZE * i + |
| MTK_SEC_MAP_COMMON_SIZE, |
| MTK_SEC_MAP_NEED_SEND_SIZE + 1); |
| |
| wmt_params.op = BTMTK_WMT_PATCH_DWNLD; |
| wmt_params.status = &status; |
| wmt_params.flag = 0; |
| wmt_params.dlen = MTK_SEC_MAP_NEED_SEND_SIZE + 1; |
| wmt_params.data = &cmd; |
| |
| err = btusb_mtk_hci_wmt_sync(hdev, &wmt_params); |
| if (err < 0) { |
| bt_dev_err(hdev, "Failed to send wmt patch dwnld (%d)", |
| err); |
| goto err_release_fw; |
| } |
| |
| if (status == BTMTK_WMT_PATCH_UNDONE) { |
| break; |
| } else if (status == BTMTK_WMT_PATCH_PROGRESS) { |
| msleep(100); |
| retry--; |
| } else if (status == BTMTK_WMT_PATCH_DONE) { |
| goto next_section; |
| } else { |
| bt_dev_err(hdev, "Failed wmt patch dwnld status (%d)", |
| status); |
| goto err_release_fw; |
| } |
| } |
| |
| fw_ptr += section_offset; |
| wmt_params.op = BTMTK_WMT_PATCH_DWNLD; |
| wmt_params.status = NULL; |
| |
| while (dl_size > 0) { |
| dlen = min_t(int, 250, dl_size); |
| if (first_block == 1) { |
| flag = 1; |
| first_block = 0; |
| } else if (dl_size - dlen <= 0) { |
| flag = 3; |
| } else { |
| flag = 2; |
| } |
| |
| wmt_params.flag = flag; |
| wmt_params.dlen = dlen; |
| wmt_params.data = fw_ptr; |
| |
| err = btusb_mtk_hci_wmt_sync(hdev, &wmt_params); |
| if (err < 0) { |
| bt_dev_err(hdev, "Failed to send wmt patch dwnld (%d)", |
| err); |
| goto err_release_fw; |
| } |
| |
| dl_size -= dlen; |
| fw_ptr += dlen; |
| } |
| } |
| next_section: |
| continue; |
| } |
| /* Wait a few moments for firmware activation done */ |
| usleep_range(100000, 120000); |
| |
| err_release_fw: |
| release_firmware(fw); |
| |
| return err; |
| } |
| |
| static int btusb_mtk_setup_firmware(struct hci_dev *hdev, const char *fwname) |
| { |
| struct btmtk_hci_wmt_params wmt_params; |
| const struct firmware *fw; |
| const u8 *fw_ptr; |
| size_t fw_size; |
| int err, dlen; |
| u8 flag, param; |
| |
| err = request_firmware(&fw, fwname, &hdev->dev); |
| if (err < 0) { |
| bt_dev_err(hdev, "Failed to load firmware file (%d)", err); |
| return err; |
| } |
| |
| /* Power on data RAM the firmware relies on. */ |
| param = 1; |
| wmt_params.op = BTMTK_WMT_FUNC_CTRL; |
| wmt_params.flag = 3; |
| wmt_params.dlen = sizeof(param); |
| wmt_params.data = ¶m; |
| wmt_params.status = NULL; |
| |
| err = btusb_mtk_hci_wmt_sync(hdev, &wmt_params); |
| if (err < 0) { |
| bt_dev_err(hdev, "Failed to power on data RAM (%d)", err); |
| goto err_release_fw; |
| } |
| |
| fw_ptr = fw->data; |
| fw_size = fw->size; |
| |
| /* The size of patch header is 30 bytes, should be skip */ |
| if (fw_size < 30) { |
| err = -EINVAL; |
| goto err_release_fw; |
| } |
| |
| fw_size -= 30; |
| fw_ptr += 30; |
| flag = 1; |
| |
| wmt_params.op = BTMTK_WMT_PATCH_DWNLD; |
| wmt_params.status = NULL; |
| |
| while (fw_size > 0) { |
| dlen = min_t(int, 250, fw_size); |
| |
| /* Tell device the position in sequence */ |
| if (fw_size - dlen <= 0) |
| flag = 3; |
| else if (fw_size < fw->size - 30) |
| flag = 2; |
| |
| wmt_params.flag = flag; |
| wmt_params.dlen = dlen; |
| wmt_params.data = fw_ptr; |
| |
| err = btusb_mtk_hci_wmt_sync(hdev, &wmt_params); |
| if (err < 0) { |
| bt_dev_err(hdev, "Failed to send wmt patch dwnld (%d)", |
| err); |
| goto err_release_fw; |
| } |
| |
| fw_size -= dlen; |
| fw_ptr += dlen; |
| } |
| |
| wmt_params.op = BTMTK_WMT_RST; |
| wmt_params.flag = 4; |
| wmt_params.dlen = 0; |
| wmt_params.data = NULL; |
| wmt_params.status = NULL; |
| |
| /* Activate funciton the firmware providing to */ |
| err = btusb_mtk_hci_wmt_sync(hdev, &wmt_params); |
| if (err < 0) { |
| bt_dev_err(hdev, "Failed to send wmt rst (%d)", err); |
| goto err_release_fw; |
| } |
| |
| /* Wait a few moments for firmware activation done */ |
| usleep_range(10000, 12000); |
| |
| err_release_fw: |
| release_firmware(fw); |
| |
| return err; |
| } |
| |
| static int btusb_mtk_func_query(struct hci_dev *hdev) |
| { |
| struct btmtk_hci_wmt_params wmt_params; |
| int status, err; |
| u8 param = 0; |
| |
| /* Query whether the function is enabled */ |
| wmt_params.op = BTMTK_WMT_FUNC_CTRL; |
| wmt_params.flag = 4; |
| wmt_params.dlen = sizeof(param); |
| wmt_params.data = ¶m; |
| wmt_params.status = &status; |
| |
| err = btusb_mtk_hci_wmt_sync(hdev, &wmt_params); |
| if (err < 0) { |
| bt_dev_err(hdev, "Failed to query function status (%d)", err); |
| return err; |
| } |
| |
| return status; |
| } |
| |
| static int btusb_mtk_uhw_reg_write(struct btusb_data *data, u32 reg, u32 val) |
| { |
| struct hci_dev *hdev = data->hdev; |
| int pipe, err; |
| void *buf; |
| |
| buf = kzalloc(4, GFP_KERNEL); |
| if (!buf) |
| return -ENOMEM; |
| |
| put_unaligned_le32(val, buf); |
| |
| pipe = usb_sndctrlpipe(data->udev, 0); |
| err = usb_control_msg(data->udev, pipe, 0x02, |
| 0x5E, |
| reg >> 16, reg & 0xffff, |
| buf, 4, USB_CTRL_SET_TIMEOUT); |
| if (err < 0) { |
| bt_dev_err(hdev, "Failed to write uhw reg(%d)", err); |
| goto err_free_buf; |
| } |
| |
| err_free_buf: |
| kfree(buf); |
| |
| return err; |
| } |
| |
| static int btusb_mtk_uhw_reg_read(struct btusb_data *data, u32 reg, u32 *val) |
| { |
| struct hci_dev *hdev = data->hdev; |
| int pipe, err; |
| void *buf; |
| |
| buf = kzalloc(4, GFP_KERNEL); |
| if (!buf) |
| return -ENOMEM; |
| |
| pipe = usb_rcvctrlpipe(data->udev, 0); |
| err = usb_control_msg(data->udev, pipe, 0x01, |
| 0xDE, |
| reg >> 16, reg & 0xffff, |
| buf, 4, USB_CTRL_SET_TIMEOUT); |
| if (err < 0) { |
| bt_dev_err(hdev, "Failed to read uhw reg(%d)", err); |
| goto err_free_buf; |
| } |
| |
| *val = get_unaligned_le32(buf); |
| bt_dev_dbg(hdev, "reg=%x, value=0x%08x", reg, *val); |
| |
| err_free_buf: |
| kfree(buf); |
| |
| return err; |
| } |
| |
| static int btusb_mtk_reg_read(struct btusb_data *data, u32 reg, u32 *val) |
| { |
| int pipe, err, size = sizeof(u32); |
| void *buf; |
| |
| buf = kzalloc(size, GFP_KERNEL); |
| if (!buf) |
| return -ENOMEM; |
| |
| pipe = usb_rcvctrlpipe(data->udev, 0); |
| err = usb_control_msg(data->udev, pipe, 0x63, |
| USB_TYPE_VENDOR | USB_DIR_IN, |
| reg >> 16, reg & 0xffff, |
| buf, size, USB_CTRL_SET_TIMEOUT); |
| if (err < 0) |
| goto err_free_buf; |
| |
| *val = get_unaligned_le32(buf); |
| |
| err_free_buf: |
| kfree(buf); |
| |
| return err; |
| } |
| |
| static int btusb_mtk_id_get(struct btusb_data *data, u32 reg, u32 *id) |
| { |
| return btusb_mtk_reg_read(data, reg, id); |
| } |
| |
| static int btusb_mtk_setup(struct hci_dev *hdev) |
| { |
| struct btusb_data *data = hci_get_drvdata(hdev); |
| struct btmtk_hci_wmt_params wmt_params; |
| ktime_t calltime, delta, rettime; |
| struct btmtk_tci_sleep tci_sleep; |
| unsigned long long duration; |
| struct sk_buff *skb; |
| const char *fwname; |
| int err, status; |
| u32 dev_id; |
| char fw_bin_name[64]; |
| u32 fw_version = 0; |
| u8 param; |
| |
| calltime = ktime_get(); |
| |
| err = btusb_mtk_id_get(data, 0x80000008, &dev_id); |
| if (err < 0) { |
| bt_dev_err(hdev, "Failed to get device id (%d)", err); |
| return err; |
| } |
| |
| if (!dev_id) { |
| err = btusb_mtk_id_get(data, 0x70010200, &dev_id); |
| if (err < 0) { |
| bt_dev_err(hdev, "Failed to get device id (%d)", err); |
| return err; |
| } |
| err = btusb_mtk_id_get(data, 0x80021004, &fw_version); |
| if (err < 0) { |
| bt_dev_err(hdev, "Failed to get fw version (%d)", err); |
| return err; |
| } |
| } |
| |
| switch (dev_id) { |
| case 0x7663: |
| fwname = FIRMWARE_MT7663; |
| break; |
| case 0x7668: |
| fwname = FIRMWARE_MT7668; |
| break; |
| case 0x7961: |
| snprintf(fw_bin_name, sizeof(fw_bin_name), |
| "mediatek/BT_RAM_CODE_MT%04x_1_%x_hdr.bin", |
| dev_id & 0xffff, (fw_version & 0xff) + 1); |
| err = btusb_mtk_setup_firmware_79xx(hdev, fw_bin_name); |
| |
| /* It's Device EndPoint Reset Option Register */ |
| btusb_mtk_uhw_reg_write(data, MTK_EP_RST_OPT, MTK_EP_RST_IN_OUT_OPT); |
| |
| /* Enable Bluetooth protocol */ |
| param = 1; |
| wmt_params.op = BTMTK_WMT_FUNC_CTRL; |
| wmt_params.flag = 0; |
| wmt_params.dlen = sizeof(param); |
| wmt_params.data = ¶m; |
| wmt_params.status = NULL; |
| |
| err = btusb_mtk_hci_wmt_sync(hdev, &wmt_params); |
| if (err < 0) { |
| bt_dev_err(hdev, "Failed to send wmt func ctrl (%d)", err); |
| return err; |
| } |
| |
| hci_set_msft_opcode(hdev, 0xFD30); |
| goto done; |
| default: |
| bt_dev_err(hdev, "Unsupported hardware variant (%08x)", |
| dev_id); |
| return -ENODEV; |
| } |
| |
| /* Query whether the firmware is already download */ |
| wmt_params.op = BTMTK_WMT_SEMAPHORE; |
| wmt_params.flag = 1; |
| wmt_params.dlen = 0; |
| wmt_params.data = NULL; |
| wmt_params.status = &status; |
| |
| err = btusb_mtk_hci_wmt_sync(hdev, &wmt_params); |
| if (err < 0) { |
| bt_dev_err(hdev, "Failed to query firmware status (%d)", err); |
| return err; |
| } |
| |
| if (status == BTMTK_WMT_PATCH_DONE) { |
| bt_dev_info(hdev, "firmware already downloaded"); |
| goto ignore_setup_fw; |
| } |
| |
| /* Setup a firmware which the device definitely requires */ |
| err = btusb_mtk_setup_firmware(hdev, fwname); |
| if (err < 0) |
| return err; |
| |
| ignore_setup_fw: |
| err = readx_poll_timeout(btusb_mtk_func_query, hdev, status, |
| status < 0 || status != BTMTK_WMT_ON_PROGRESS, |
| 2000, 5000000); |
| /* -ETIMEDOUT happens */ |
| if (err < 0) |
| return err; |
| |
| /* The other errors happen in btusb_mtk_func_query */ |
| if (status < 0) |
| return status; |
| |
| if (status == BTMTK_WMT_ON_DONE) { |
| bt_dev_info(hdev, "function already on"); |
| goto ignore_func_on; |
| } |
| |
| /* Enable Bluetooth protocol */ |
| param = 1; |
| wmt_params.op = BTMTK_WMT_FUNC_CTRL; |
| wmt_params.flag = 0; |
| wmt_params.dlen = sizeof(param); |
| wmt_params.data = ¶m; |
| wmt_params.status = NULL; |
| |
| err = btusb_mtk_hci_wmt_sync(hdev, &wmt_params); |
| if (err < 0) { |
| bt_dev_err(hdev, "Failed to send wmt func ctrl (%d)", err); |
| return err; |
| } |
| |
| ignore_func_on: |
| /* Apply the low power environment setup */ |
| tci_sleep.mode = 0x5; |
| tci_sleep.duration = cpu_to_le16(0x640); |
| tci_sleep.host_duration = cpu_to_le16(0x640); |
| tci_sleep.host_wakeup_pin = 0; |
| tci_sleep.time_compensation = 0; |
| |
| skb = __hci_cmd_sync(hdev, 0xfc7a, sizeof(tci_sleep), &tci_sleep, |
| HCI_INIT_TIMEOUT); |
| if (IS_ERR(skb)) { |
| err = PTR_ERR(skb); |
| bt_dev_err(hdev, "Failed to apply low power setting (%d)", err); |
| return err; |
| } |
| kfree_skb(skb); |
| |
| done: |
| rettime = ktime_get(); |
| delta = ktime_sub(rettime, calltime); |
| duration = (unsigned long long)ktime_to_ns(delta) >> 10; |
| |
| bt_dev_info(hdev, "Device setup in %llu usecs", duration); |
| |
| return 0; |
| } |
| |
| static int btusb_mtk_shutdown(struct hci_dev *hdev) |
| { |
| struct btmtk_hci_wmt_params wmt_params; |
| u8 param = 0; |
| int err; |
| |
| /* Disable the device */ |
| wmt_params.op = BTMTK_WMT_FUNC_CTRL; |
| wmt_params.flag = 0; |
| wmt_params.dlen = sizeof(param); |
| wmt_params.data = ¶m; |
| wmt_params.status = NULL; |
| |
| err = btusb_mtk_hci_wmt_sync(hdev, &wmt_params); |
| if (err < 0) { |
| bt_dev_err(hdev, "Failed to send wmt func ctrl (%d)", err); |
| return err; |
| } |
| |
| return 0; |
| } |
| |
| static void btusb_mtk_cmd_timeout(struct hci_dev *hdev) |
| { |
| struct btusb_data *data = hci_get_drvdata(hdev); |
| u32 val; |
| int err, retry = 0; |
| |
| /* It's MediaTek specific bluetooth reset mechanism via USB */ |
| if (test_and_set_bit(BTUSB_HW_RESET_ACTIVE, &data->flags)) { |
| bt_dev_err(hdev, "last reset failed? Not resetting again"); |
| return; |
| } |
| |
| err = usb_autopm_get_interface(data->intf); |
| if (err < 0) |
| return; |
| |
| btusb_stop_traffic(data); |
| usb_kill_anchored_urbs(&data->tx_anchor); |
| |
| /* It's Device EndPoint Reset Option Register */ |
| bt_dev_dbg(hdev, "Initiating reset mechanism via uhw"); |
| btusb_mtk_uhw_reg_write(data, MTK_EP_RST_OPT, MTK_EP_RST_IN_OUT_OPT); |
| btusb_mtk_uhw_reg_read(data, MTK_BT_WDT_STATUS, &val); |
| |
| /* Reset the bluetooth chip via USB interface. */ |
| btusb_mtk_uhw_reg_write(data, MTK_BT_SUBSYS_RST, 1); |
| btusb_mtk_uhw_reg_write(data, MTK_UDMA_INT_STA_BT, 0x000000FF); |
| btusb_mtk_uhw_reg_read(data, MTK_UDMA_INT_STA_BT, &val); |
| btusb_mtk_uhw_reg_write(data, MTK_UDMA_INT_STA_BT1, 0x000000FF); |
| btusb_mtk_uhw_reg_read(data, MTK_UDMA_INT_STA_BT1, &val); |
| /* MT7921 need to delay 20ms between toggle reset bit */ |
| msleep(20); |
| btusb_mtk_uhw_reg_write(data, MTK_BT_SUBSYS_RST, 0); |
| btusb_mtk_uhw_reg_read(data, MTK_BT_SUBSYS_RST, &val); |
| |
| /* Poll the register until reset is completed */ |
| do { |
| btusb_mtk_uhw_reg_read(data, MTK_BT_MISC, &val); |
| if (val & MTK_BT_RST_DONE) { |
| bt_dev_dbg(hdev, "Bluetooth Reset Successfully"); |
| break; |
| } |
| |
| bt_dev_dbg(hdev, "Polling Bluetooth Reset CR"); |
| retry++; |
| msleep(MTK_BT_RESET_WAIT_MS); |
| } while (retry < MTK_BT_RESET_NUM_TRIES); |
| |
| btusb_mtk_id_get(data, 0x70010200, &val); |
| if (!val) |
| bt_dev_err(hdev, "Can't get device id, subsys reset fail."); |
| |
| usb_queue_reset_device(data->intf); |
| |
| clear_bit(BTUSB_HW_RESET_ACTIVE, &data->flags); |
| } |
| |
| static int btusb_recv_acl_mtk(struct hci_dev *hdev, struct sk_buff *skb) |
| { |
| struct btusb_data *data = hci_get_drvdata(hdev); |
| u16 handle = le16_to_cpu(hci_acl_hdr(skb)->handle); |
| |
| switch (handle) { |
| case 0xfc6f: /* Firmware dump from device */ |
| /* When the firmware hangs, the device can no longer |
| * suspend and thus disable auto-suspend. |
|