| Author | Tokens | Token Proportion | Commits | Commit Proportion |
|---|---|---|---|---|
| Marcel Holtmann | 9535 | 47.44% | 72 | 22.71% |
| Sean Wang | 2529 | 12.58% | 3 | 0.95% |
| Tedd Ho-Jeong An | 1015 | 5.05% | 13 | 4.10% |
| Rajat Jain | 813 | 4.04% | 5 | 1.58% |
| Ben Young Tae Kim | 778 | 3.87% | 3 | 0.95% |
| Sathish Narasimman | 508 | 2.53% | 1 | 0.32% |
| Oliver Neukum | 452 | 2.25% | 7 | 2.21% |
| Dmitry Tunin | 249 | 1.24% | 18 | 5.68% |
| Daniel Drake | 246 | 1.22% | 3 | 0.95% |
| Raghuram Hegde | 236 | 1.17% | 3 | 0.95% |
| Kiran K | 225 | 1.12% | 1 | 0.32% |
| Alex Lu | 221 | 1.10% | 2 | 0.63% |
| Ismael Ferreras Morezuelas | 207 | 1.03% | 1 | 0.32% |
| Toshi Kikuchi | 177 | 0.88% | 1 | 0.32% |
| Hans de Goede | 165 | 0.82% | 7 | 2.21% |
| Petri Gynther | 156 | 0.78% | 1 | 0.32% |
| Abhishek Pandit-Subedi | 133 | 0.66% | 4 | 1.26% |
| Amitkumar Karwar | 132 | 0.66% | 2 | 0.63% |
| Amit K Bag | 107 | 0.53% | 3 | 0.95% |
| Takashi Iwai | 104 | 0.52% | 1 | 0.32% |
| AceLan Kao | 104 | 0.52% | 9 | 2.84% |
| Hilda Wu | 103 | 0.51% | 1 | 0.32% |
| Jeffy Chen | 90 | 0.45% | 2 | 0.63% |
| Andy Shevchenko | 82 | 0.41% | 2 | 0.63% |
| Alain Michaud | 60 | 0.30% | 5 | 1.58% |
| Wen-chien Jesse Sung | 53 | 0.26% | 4 | 1.26% |
| Yu-Chen (Al) Cho | 52 | 0.26% | 4 | 1.26% |
| Paul Bolle | 51 | 0.25% | 2 | 0.63% |
| Jian-Hong Pan | 50 | 0.25% | 4 | 1.26% |
| João Paulo Rechi Vita | 50 | 0.25% | 4 | 1.26% |
| Loic Poulain | 44 | 0.22% | 3 | 0.95% |
| Champion Chen | 42 | 0.21% | 1 | 0.32% |
| Jakub Pawlowski | 42 | 0.21% | 4 | 1.26% |
| Sebastian Andrzej Siewior | 40 | 0.20% | 1 | 0.32% |
| Johan Hedberg | 38 | 0.19% | 4 | 1.26% |
| Brian Norris | 37 | 0.18% | 3 | 0.95% |
| David Herrmann | 37 | 0.18% | 1 | 0.32% |
| Sujith Manoharan | 37 | 0.18% | 3 | 0.95% |
| Anantha Krishnan | 28 | 0.14% | 2 | 0.63% |
| Szymon Janc | 27 | 0.13% | 2 | 0.63% |
| Peng Chen | 26 | 0.13% | 2 | 0.63% |
| Gustavo Padovan | 25 | 0.12% | 3 | 0.95% |
| Bala Shanmugam | 25 | 0.12% | 2 | 0.63% |
| Vic Wei | 24 | 0.12% | 2 | 0.63% |
| Ming Lei | 24 | 0.12% | 2 | 0.63% |
| Jurgen Kramer | 24 | 0.12% | 2 | 0.63% |
| Sukumar Ghorai | 23 | 0.11% | 1 | 0.32% |
| Miao-chen Chou | 21 | 0.10% | 1 | 0.32% |
| Stefan Seyfried | 21 | 0.10% | 1 | 0.32% |
| Nobuhiro Iwamatsu | 20 | 0.10% | 2 | 0.63% |
| Jaya P G | 19 | 0.09% | 1 | 0.32% |
| Matej Dubovy | 19 | 0.09% | 1 | 0.32% |
| Christoph Haag | 19 | 0.09% | 1 | 0.32% |
| Chethan T N | 18 | 0.09% | 2 | 0.63% |
| Kai-Heng Feng | 18 | 0.09% | 2 | 0.63% |
| Joseph Hwang | 17 | 0.08% | 1 | 0.32% |
| Carlo Caione | 16 | 0.08% | 1 | 0.32% |
| Vicente Bergas | 15 | 0.07% | 1 | 0.32% |
| Kuba Pawlak | 15 | 0.07% | 2 | 0.63% |
| Larry Finger | 15 | 0.07% | 1 | 0.32% |
| Peter Poklop | 15 | 0.07% | 1 | 0.32% |
| Ethan Hsieh | 15 | 0.07% | 1 | 0.32% |
| Lauro Costa | 14 | 0.07% | 1 | 0.32% |
| Ken O'Brien | 14 | 0.07% | 1 | 0.32% |
| Vincent Zwanenburg | 14 | 0.07% | 1 | 0.32% |
| Sergey Shatunov | 14 | 0.07% | 1 | 0.32% |
| velemas | 14 | 0.07% | 1 | 0.32% |
| Rocky Liao | 14 | 0.07% | 1 | 0.32% |
| Shih-Yuan Lee (FourDollars) | 14 | 0.07% | 1 | 0.32% |
| Ioan Moldovan | 14 | 0.07% | 1 | 0.32% |
| Yvain THONNART | 14 | 0.07% | 1 | 0.32% |
| Mohammed Habibulla | 14 | 0.07% | 1 | 0.32% |
| Michael Gruetzner | 14 | 0.07% | 1 | 0.32% |
| Henrik Rydberg | 14 | 0.07% | 1 | 0.32% |
| Owen Lin | 14 | 0.07% | 1 | 0.32% |
| Alexander Ploumistos | 14 | 0.07% | 1 | 0.32% |
| Bartosz Chronowski | 14 | 0.07% | 1 | 0.32% |
| Janne Heikkinen | 14 | 0.07% | 1 | 0.32% |
| Gabriel | 14 | 0.07% | 1 | 0.32% |
| Bing Zhao | 13 | 0.06% | 1 | 0.32% |
| Josh Boyer | 13 | 0.06% | 1 | 0.32% |
| Daniel Schaal | 13 | 0.06% | 1 | 0.32% |
| Yevgeniy Melnichuk | 13 | 0.06% | 1 | 0.32% |
| Santtu Rekilä | 13 | 0.06% | 1 | 0.32% |
| Thomas Loo | 12 | 0.06% | 1 | 0.32% |
| Noguchi Kazutosi | 12 | 0.06% | 1 | 0.32% |
| Ricardo Mendoza | 12 | 0.06% | 1 | 0.32% |
| Keng-Yu Lin | 12 | 0.06% | 1 | 0.32% |
| Marcos Chaparro | 12 | 0.06% | 1 | 0.32% |
| Eran | 12 | 0.06% | 1 | 0.32% |
| Sergio Cambra | 12 | 0.06% | 1 | 0.32% |
| Andy Ross | 12 | 0.06% | 1 | 0.32% |
| Marek Vašut | 12 | 0.06% | 1 | 0.32% |
| Sunguk Lee | 12 | 0.06% | 1 | 0.32% |
| Chan-yeol Park | 11 | 0.05% | 1 | 0.32% |
| Johannes Berg | 11 | 0.05% | 2 | 0.63% |
| Marc-Antoine Perennou | 10 | 0.05% | 1 | 0.32% |
| Cyril Lacoux | 10 | 0.05% | 1 | 0.32% |
| Giancarlo Formicuccia | 10 | 0.05% | 1 | 0.32% |
| Pieter-Augustijn Van Malleghem | 10 | 0.05% | 1 | 0.32% |
| Edgar (gimli) Hucek | 10 | 0.05% | 1 | 0.32% |
| Justin TerAvest | 10 | 0.05% | 1 | 0.32% |
| Marco Piazza | 8 | 0.04% | 1 | 0.32% |
| Sathish Narsimman | 8 | 0.04% | 1 | 0.32% |
| Wei Yongjun | 7 | 0.03% | 1 | 0.32% |
| Arnd Bergmann | 7 | 0.03% | 1 | 0.32% |
| James M. Leddy | 6 | 0.03% | 1 | 0.32% |
| Sage Sharp | 5 | 0.02% | 1 | 0.32% |
| Heinrich Siebmanns | 5 | 0.02% | 1 | 0.32% |
| Derek Robson | 5 | 0.02% | 1 | 0.32% |
| Rick Dunn | 5 | 0.02% | 1 | 0.32% |
| Steven.Li | 5 | 0.02% | 1 | 0.32% |
| Alan Stern | 4 | 0.02% | 2 | 0.63% |
| John W. Linville | 4 | 0.02% | 1 | 0.32% |
| Bart Van Assche | 4 | 0.02% | 1 | 0.32% |
| Steven Harms | 4 | 0.02% | 1 | 0.32% |
| Linus Torvalds | 3 | 0.01% | 1 | 0.32% |
| Mikel Astiz | 3 | 0.01% | 1 | 0.32% |
| Colin Ian King | 3 | 0.01% | 1 | 0.32% |
| Rusty Russell | 3 | 0.01% | 1 | 0.32% |
| Greg Kroah-Hartman | 2 | 0.01% | 1 | 0.32% |
| Jesper Juhl | 2 | 0.01% | 1 | 0.32% |
| Vikram Kandukuri | 2 | 0.01% | 1 | 0.32% |
| Thomas Gleixner | 2 | 0.01% | 1 | 0.32% |
| Max Chou | 2 | 0.01% | 1 | 0.32% |
| Manoj Iyer | 1 | 0.00% | 1 | 0.32% |
| Aleksei Volkov | 1 | 0.00% | 1 | 0.32% |
| Minjune Kim | 1 | 0.00% | 1 | 0.32% |
| Johan Hovold | 1 | 0.00% | 1 | 0.32% |
| Jia-Ju Bai | 1 | 0.00% | 1 | 0.32% |
| Don Zickus | 1 | 0.00% | 1 | 0.32% |
| Shailendra Verma | 1 | 0.00% | 1 | 0.32% |
| Total | 20100 | 317 |
// 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 0x100 #define BTUSB_INTEL_BOOT 0x200 #define BTUSB_BCM_PATCHRAM 0x400 #define BTUSB_MARVELL 0x800 #define BTUSB_SWAVE 0x1000 #define BTUSB_INTEL_NEW 0x2000 #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 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 BCM20702A0 */ { USB_DEVICE(0x413c, 0x8197) }, /* 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 }, { USB_DEVICE(0x0cf3, 0xe007), .driver_info = BTUSB_QCA_ROME }, { USB_DEVICE(0x0cf3, 0xe009), .driver_info = BTUSB_QCA_ROME }, { USB_DEVICE(0x0cf3, 0xe010), .driver_info = BTUSB_QCA_ROME }, { USB_DEVICE(0x0cf3, 0xe300), .driver_info = BTUSB_QCA_ROME }, { USB_DEVICE(0x0cf3, 0xe301), .driver_info = BTUSB_QCA_ROME }, { USB_DEVICE(0x0cf3, 0xe360), .driver_info = BTUSB_QCA_ROME }, { USB_DEVICE(0x0489, 0xe092), .driver_info = BTUSB_QCA_ROME }, { USB_DEVICE(0x0489, 0xe09f), .driver_info = BTUSB_QCA_ROME }, { USB_DEVICE(0x0489, 0xe0a2), .driver_info = BTUSB_QCA_ROME }, { USB_DEVICE(0x04ca, 0x3011), .driver_info = BTUSB_QCA_ROME }, { USB_DEVICE(0x04ca, 0x3015), .driver_info = BTUSB_QCA_ROME }, { USB_DEVICE(0x04ca, 0x3016), .driver_info = BTUSB_QCA_ROME }, { USB_DEVICE(0x04ca, 0x301a), .driver_info = BTUSB_QCA_ROME }, { USB_DEVICE(0x04ca, 0x3021), .driver_info = BTUSB_QCA_ROME }, { USB_DEVICE(0x13d3, 0x3491), .driver_info = BTUSB_QCA_ROME }, { USB_DEVICE(0x13d3, 0x3496), .driver_info = BTUSB_QCA_ROME }, { USB_DEVICE(0x13d3, 0x3501), .driver_info = BTUSB_QCA_ROME }, /* 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_NEW | BTUSB_WIDEBAND_SPEECH | BTUSB_VALID_LE_STATES }, { USB_DEVICE(0x8087, 0x0026), .driver_info = BTUSB_INTEL_NEW | BTUSB_WIDEBAND_SPEECH }, { USB_DEVICE(0x8087, 0x0029), .driver_info = BTUSB_INTEL_NEW | BTUSB_WIDEBAND_SPEECH }, { USB_DEVICE(0x8087, 0x0032), .driver_info = BTUSB_INTEL_NEW | BTUSB_WIDEBAND_SPEECH}, { USB_DEVICE(0x8087, 0x07da), .driver_info = BTUSB_CSR }, { USB_DEVICE(0x8087, 0x07dc), .driver_info = BTUSB_INTEL }, { USB_DEVICE(0x8087, 0x0a2a), .driver_info = BTUSB_INTEL }, { USB_DEVICE(0x8087, 0x0a2b), .driver_info = BTUSB_INTEL_NEW | BTUSB_WIDEBAND_SPEECH }, { USB_DEVICE(0x8087, 0x0aa7), .driver_info = BTUSB_INTEL | BTUSB_WIDEBAND_SPEECH }, { USB_DEVICE(0x8087, 0x0aaa), .driver_info = BTUSB_INTEL_NEW | BTUSB_WIDEBAND_SPEECH | BTUSB_VALID_LE_STATES }, /* 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 }, /* 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 }, /* 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 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 }, { USB_DEVICE(0x13d3, 0x3548), .driver_info = BTUSB_REALTEK }, /* 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_DISABLE 14 #define BTUSB_USE_ALT1_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_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 */ hci_recv_frame(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; /* Disable device remote wakeup when host is suspended * For Realtek chips, global suspend without * SET_FEATURE (DEVICE_REMOTE_WAKEUP) can save more power in device. */ if (test_bit(BTUSB_WAKEUP_DISABLE, &data->flags)) device_wakeup_disable(&data->udev->dev); 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_DISABLE, &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) { /* Check if Alt 6 is supported for Transparent audio */ if (btusb_find_altsetting(data, 6)) { data->usb_alt6_packet_flow = true; new_alts = 6; } else if (test_bit(BTUSB_USE_ALT1_FOR_WBS, &data->flags)) { new_alts = 1; } else { bt_dev_err(hdev, "Device does not support ALT setting 6"); } } if (btusb_switch_alt_setting(hdev, new_alts) < 0) 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 hci_rp_read_local_version *rp; struct sk_buff *skb; bool is_fake = false; 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; if (is_fake) { bt_dev_warn(hdev, "CSR: Unbranded CSR clone detected; adding workarounds..."); /* 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); } kfree_skb(skb); return 0; } static const struct firmware *btusb_setup_intel_get_fw(struct hci_dev *hdev, struct intel_version *ver) { const struct firmware *fw; char fwname[64]; int ret; snprintf(fwname, sizeof(fwname), "intel/ibt-hw-%x.%x.%x-fw-%x.%x.%x.%x.%x.bseq", ver->hw_platform, ver->hw_variant, ver->hw_revision, ver->fw_variant, ver->fw_revision, ver->fw_build_num, ver->fw_build_ww, ver->fw_build_yy); ret = request_firmware(&fw, fwname, &hdev->dev); if (ret < 0) { if (ret == -EINVAL) { bt_dev_err(hdev, "Intel firmware file request failed (%d)", ret); return NULL; } bt_dev_err(hdev, "failed to open Intel firmware file: %s (%d)", fwname, ret); /* If the correct firmware patch file is not found, use the * default firmware patch file instead */ snprintf(fwname, sizeof(fwname), "intel/ibt-hw-%x.%x.bseq", ver->hw_platform, ver->hw_variant); if (request_firmware(&fw, fwname, &hdev->dev) < 0) { bt_dev_err(hdev, "failed to open default fw file: %s", fwname); return NULL; } } bt_dev_info(hdev, "Intel Bluetooth firmware file: %s", fwname); return fw; } static int btusb_setup_intel_patching(struct hci_dev *hdev, const struct firmware *fw, const u8 **fw_ptr, int *disable_patch) { struct sk_buff *skb; struct hci_command_hdr *cmd; const u8 *cmd_param; struct hci_event_hdr *evt = NULL; const u8 *evt_param = NULL; int remain = fw->size - (*fw_ptr - fw->data); /* The first byte indicates the types of the patch command or event. * 0x01 means HCI command and 0x02 is HCI event. If the first bytes * in the current firmware buffer doesn't start with 0x01 or * the size of remain buffer is smaller than HCI command header, * the firmware file is corrupted and it should stop the patching * process. */ if (remain > HCI_COMMAND_HDR_SIZE && *fw_ptr[0] != 0x01) { bt_dev_err(hdev, "Intel fw corrupted: invalid cmd read"); return -EINVAL; } (*fw_ptr)++; remain--; cmd = (struct hci_command_hdr *)(*fw_ptr); *fw_ptr += sizeof(*cmd); remain -= sizeof(*cmd); /* Ensure that the remain firmware data is long enough than the length * of command parameter. If not, the firmware file is corrupted. */ if (remain < cmd->plen) { bt_dev_err(hdev, "Intel fw corrupted: invalid cmd len"); return -EFAULT; } /* If there is a command that loads a patch in the firmware * file, then enable the patch upon success, otherwise just * disable the manufacturer mode, for example patch activation * is not required when the default firmware patch file is used * because there are no patch data to load. */ if (*disable_patch && le16_to_cpu(cmd->opcode) == 0xfc8e) *disable_patch = 0; cmd_param = *fw_ptr; *fw_ptr += cmd->plen; remain -= cmd->plen; /* This reads the expected events when the above command is sent to the * device. Some vendor commands expects more than one events, for * example command status event followed by vendor specific event. * For this case, it only keeps the last expected event. so the command * can be sent with __hci_cmd_sync_ev() which returns the sk_buff of * last expected event. */ while (remain > HCI_EVENT_HDR_SIZE && *fw_ptr[0] == 0x02) { (*fw_ptr)++; remain--; evt = (struct hci_event_hdr *)(*fw_ptr); *fw_ptr += sizeof(*evt); remain -= sizeof(*evt); if (remain < evt->plen) { bt_dev_err(hdev, "Intel fw corrupted: invalid evt len"); return -EFAULT; } evt_param = *fw_ptr; *fw_ptr += evt->plen; remain -= evt->plen; } /* Every HCI commands in the firmware file has its correspond event. * If event is not found or remain is smaller than zero, the firmware * file is corrupted. */ if (!evt || !evt_param || remain < 0) { bt_dev_err(hdev, "Intel fw corrupted: invalid evt read"); return -EFAULT; } skb = __hci_cmd_sync_ev(hdev, le16_to_cpu(cmd->opcode), cmd->plen, cmd_param, evt->evt, HCI_INIT_TIMEOUT); if (IS_ERR(skb)) { bt_dev_err(hdev, "sending Intel patch command (0x%4.4x) failed (%ld)", cmd->opcode, PTR_ERR(skb)); return PTR_ERR(skb); } /* It ensures that the returned event matches the event data read from * the firmware file. At fist, it checks the length and then * the contents of the event. */ if (skb->len != evt->plen) { bt_dev_err(hdev, "mismatch event length (opcode 0x%4.4x)", le16_to_cpu(cmd->opcode)); kfree_skb(skb); return -EFAULT; } if (memcmp(skb->data, evt_param, evt->plen)) { bt_dev_err(hdev, "mismatch event parameter (opcode 0x%4.4x)", le16_to_cpu(cmd->opcode)); kfree_skb(skb); return -EFAULT; } kfree_skb(skb); return 0; } static int btusb_setup_intel(struct hci_dev *hdev) { struct sk_buff *skb; const struct firmware *fw; const u8 *fw_ptr; int disable_patch, err; struct intel_version ver; BT_DBG("%s", hdev->name); /* The controller has a bug with the first HCI command sent to it * returning number of completed commands as zero. This would stall the * command processing in the Bluetooth core. * * As a workaround, send HCI Reset command first which will reset the * number of completed commands and allow normal command processing * from now on. */ skb = __hci_cmd_sync(hdev, HCI_OP_RESET, 0, NULL, HCI_INIT_TIMEOUT); if (IS_ERR(skb)) { bt_dev_err(hdev, "sending initial HCI reset command failed (%ld)", PTR_ERR(skb)); return PTR_ERR(skb); } kfree_skb(skb); /* Read Intel specific controller version first to allow selection of * which firmware file to load. * * The returned information are hardware variant and revision plus * firmware variant, revision and build number. */ err = btintel_read_version(hdev, &ver); if (err) return err; bt_dev_info(hdev, "read Intel version: %02x%02x%02x%02x%02x%02x%02x%02x%02x", ver.hw_platform, ver.hw_variant, ver.hw_revision, ver.fw_variant, ver.fw_revision, ver.fw_build_num, ver.fw_build_ww, ver.fw_build_yy, ver.fw_patch_num); /* fw_patch_num indicates the version of patch the device currently * have. If there is no patch data in the device, it is always 0x00. * So, if it is other than 0x00, no need to patch the device again. */ if (ver.fw_patch_num) { bt_dev_info(hdev, "Intel device is already patched. " "patch num: %02x", ver.fw_patch_num); goto complete; } /* Opens the firmware patch file based on the firmware version read * from the controller. If it fails to open the matching firmware * patch file, it tries to open the default firmware patch file. * If no patch file is found, allow the device to operate without * a patch. */ fw = btusb_setup_intel_get_fw(hdev, &ver); if (!fw) goto complete; fw_ptr = fw->data; /* Enable the manufacturer mode of the controller. * Only while this mode is enabled, the driver can download the * firmware patch data and configuration parameters. */ err = btintel_enter_mfg(hdev); if (err) { release_firmware(fw); return err; } disable_patch = 1; /* The firmware data file consists of list of Intel specific HCI * commands and its expected events. The first byte indicates the * type of the message, either HCI command or HCI event. * * It reads the command and its expected event from the firmware file, * and send to the controller. Once __hci_cmd_sync_ev() returns, * the returned event is compared with the event read from the firmware * file and it will continue until all the messages are downloaded to * the controller. * * Once the firmware patching is completed successfully, * the manufacturer mode is disabled with reset and activating the * downloaded patch. * * If the firmware patching fails, the manufacturer mode is * disabled with reset and deactivating the patch. * * If the default patch file is used, no reset is done when disabling * the manufacturer. */ while (fw->size > fw_ptr - fw->data) { int ret; ret = btusb_setup_intel_patching(hdev, fw, &fw_ptr, &disable_patch); if (ret < 0) goto exit_mfg_deactivate; } release_firmware(fw); if (disable_patch) goto exit_mfg_disable; /* Patching completed successfully and disable the manufacturer mode * with reset and activate the downloaded firmware patches. */ err = btintel_exit_mfg(hdev, true, true); if (err) return err; /* Need build number for downloaded fw patches in * every power-on boot */ err = btintel_read_version(hdev, &ver); if (err) return err; bt_dev_info(hdev, "Intel BT fw patch 0x%02x completed & activated", ver.fw_patch_num); goto complete; exit_mfg_disable: /* Disable the manufacturer mode without reset */ err = btintel_exit_mfg(hdev, false, false); if (err) return err; bt_dev_info(hdev, "Intel firmware patch completed"); goto complete; exit_mfg_deactivate: release_firmware(fw); /* Patching failed. Disable the manufacturer mode with reset and * deactivate the downloaded firmware patches. */ err = btintel_exit_mfg(hdev, true, false); if (err) return err; bt_dev_info(hdev, "Intel firmware patch completed and deactivated"); complete: /* Set the event mask for Intel specific vendor events. This enables * a few extra events that are useful during general operation. */ btintel_set_event_mask_mfg(hdev, false); btintel_check_bdaddr(hdev); 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) { /* 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 (test_bit(BTUSB_BOOTLOADER, &data->flags)) return btusb_recv_intr(data, buffer, count); return btusb_recv_bulk(data, buffer, count); } static void btusb_intel_bootup(struct btusb_data *data, const void *ptr, unsigned int len) { const struct intel_bootup *evt = ptr; if (len != sizeof(*evt)) return; if (test_and_clear_bit(BTUSB_BOOTING, &data->flags)) wake_up_bit(&data->flags, BTUSB_BOOTING); } static void btusb_intel_secure_send_result(struct btusb_data *data, const void *ptr, unsigned int len) { const struct intel_secure_send_result *evt = ptr; if (len != sizeof(*evt)) return; if (evt->result) set_bit(BTUSB_FIRMWARE_FAILED, &data->flags); if (test_and_clear_bit(BTUSB_DOWNLOADING, &data->flags) && test_bit(BTUSB_FIRMWARE_LOADED, &data->flags)) wake_up_bit(&data->flags, BTUSB_DOWNLOADING); } static int btusb_recv_event_intel(struct hci_dev *hdev, struct sk_buff *skb) { struct btusb_data *data = hci_get_drvdata(hdev); if (test_bit(BTUSB_BOOTLOADER, &data->flags)) { 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. */ btusb_intel_bootup(data, 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. */ btusb_intel_secure_send_result(data, ptr, len); break; } } } return hci_recv_frame(hdev, skb); } static int btusb_send_frame_intel(struct hci_dev *hdev, struct sk_buff *skb) { struct btusb_data *data = hci_get_drvdata(hdev); struct urb *urb; BT_DBG("%s", hdev->name); switch (hci_skb_pkt_type(skb)) { case HCI_COMMAND_PKT: if (test_bit(BTUSB_BOOTLOADER, &data->flags)) { 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; } static bool btusb_setup_intel_new_get_fw_name(struct intel_version *ver, struct intel_boot_params *params, char *fw_name, size_t len, const char *suffix) { switch (ver->hw_variant) { case 0x0b: /* SfP */ case 0x0c: /* WsP */ snprintf(fw_name, len, "intel/ibt-%u-%u.%s", le16_to_cpu(ver->hw_variant), le16_to_cpu(params->dev_revid), suffix); break; case 0x11: /* JfP */ case 0x12: /* ThP */ case 0x13: /* HrP */ case 0x14: /* CcP */ snprintf(fw_name, len, "intel/ibt-%u-%u-%u.%s", le16_to_cpu(ver->hw_variant), le16_to_cpu(ver->hw_revision), le16_to_cpu(ver->fw_revision), suffix); break; default: return false; } return true; } static int btusb_intel_download_firmware(struct hci_dev *hdev, struct intel_version *ver, struct intel_boot_params *params) { const struct firmware *fw; u32 boot_param; char fwname[64]; int err; struct btusb_data *data = hci_get_drvdata(hdev); if (!ver || !params) return -EINVAL; /* The hardware platform number has a fixed value of 0x37 and * for now only accept this single value. */ if (ver->hw_platform != 0x37) { bt_dev_err(hdev, "Unsupported Intel hardware platform (%u)", ver->hw_platform); return -EINVAL; } /* Check for supported iBT hardware variants of this firmware * loading method. * * This check has been put in place to ensure correct forward * compatibility options when newer hardware variants come along. */ switch (ver->hw_variant) { case 0x0b: /* SfP */ case 0x0c: /* WsP */ case 0x11: /* JfP */ case 0x12: /* ThP */ case 0x13: /* HrP */ case 0x14: /* CcP */ break; default: bt_dev_err(hdev, "Unsupported Intel hardware variant (%u)", ver->hw_variant); return -EINVAL; } btintel_version_info(hdev, ver); /* The firmware variant determines if the device is in bootloader * mode or is running operational firmware. The value 0x06 identifies * the bootloader and the value 0x23 identifies the operational * firmware. * * When the operational firmware is already present, then only * the check for valid Bluetooth device address is needed. This * determines if the device will be added as configured or * unconfigured controller. * * It is not possible to use the Secure Boot Parameters in this * case since that command is only available in bootloader mode. */ if (ver->fw_variant == 0x23) { clear_bit(BTUSB_BOOTLOADER, &data->flags); btintel_check_bdaddr(hdev); return 0; } /* If the device is not in bootloader mode, then the only possible * choice is to return an error and abort the device initialization. */ if (ver->fw_variant != 0x06) { bt_dev_err(hdev, "Unsupported Intel firmware variant (%u)", ver->fw_variant); return -ENODEV; } /* Read the secure boot parameters to identify the operating * details of the bootloader. */ err = btintel_read_boot_params(hdev, params); if (err) return err; /* It is required that every single firmware fragment is acknowledged * with a command complete event. If the boot parameters indicate * that this bootloader does not send them, then abort the setup. */ if (params->limited_cce != 0x00) { bt_dev_err(hdev, "Unsupported Intel firmware loading method (%u)", params->limited_cce); return -EINVAL; } /* If the OTP has no valid Bluetooth device address, then there will * also be no valid address for the operational firmware. */ if (!bacmp(¶ms->otp_bdaddr, BDADDR_ANY)) { bt_dev_info(hdev, "No device address configured"); set_bit(HCI_QUIRK_INVALID_BDADDR, &hdev->quirks); } /* With this Intel bootloader only the hardware variant and device * revision information are used to select the right firmware for SfP * and WsP. * * The firmware filename is ibt-<hw_variant>-<dev_revid>.sfi. * * Currently the supported hardware variants are: * 11 (0x0b) for iBT3.0 (LnP/SfP) * 12 (0x0c) for iBT3.5 (WsP) * * For ThP/JfP and for future SKU's, the FW name varies based on HW * variant, HW revision and FW revision, as these are dependent on CNVi * and RF Combination. * * 17 (0x11) for iBT3.5 (JfP) * 18 (0x12) for iBT3.5 (ThP) * * The firmware file name for these will be * ibt-<hw_variant>-<hw_revision>-<fw_revision>.sfi. * */ err = btusb_setup_intel_new_get_fw_name(ver, params, fwname, sizeof(fwname), "sfi"); if (!err) { bt_dev_err(hdev, "Unsupported Intel firmware naming"); return -EINVAL; } err = request_firmware(&fw, fwname, &hdev->dev); if (err < 0) { bt_dev_err(hdev, "Failed to load Intel firmware file (%d)", err); return err; } bt_dev_info(hdev, "Found device firmware: %s", fwname); if (fw->size < 644) { bt_dev_err(hdev, "Invalid size of firmware file (%zu)", fw->size); err = -EBADF; goto done; } set_bit(BTUSB_DOWNLOADING, &data->flags); /* Start firmware downloading and get boot parameter */ err = btintel_download_firmware(hdev, fw, &boot_param); if (err < 0) { /* When FW download fails, send Intel Reset to retry * FW download. */ btintel_reset_to_bootloader(hdev); goto done; } set_bit(BTUSB_FIRMWARE_LOADED, &data->flags); bt_dev_info(hdev, "Waiting for firmware download to complete"); /* Before switching the device into operational mode and with that * booting the loaded firmware, wait for the bootloader notification * that all fragments have been successfully received. * * When the event processing receives the notification, then the * BTUSB_DOWNLOADING flag will be cleared. * * The firmware loading should not take longer than 5 seconds * and thus just timeout if that happens and fail the setup * of this device. */ err = wait_on_bit_timeout(&data->flags, BTUSB_DOWNLOADING, TASK_INTERRUPTIBLE, msecs_to_jiffies(5000)); if (err == -EINTR) { bt_dev_err(hdev, "Firmware loading interrupted"); goto done; } if (err) { bt_dev_err(hdev, "Firmware loading timeout"); err = -ETIMEDOUT; btintel_reset_to_bootloader(hdev); goto done; } if (test_bit(BTUSB_FIRMWARE_FAILED, &data->flags)) { bt_dev_err(hdev, "Firmware loading failed"); err = -ENOEXEC; goto done; } done: release_firmware(fw); return err; } static int btusb_setup_intel_new(struct hci_dev *hdev) { struct btusb_data *data = hci_get_drvdata(hdev); struct intel_version ver; struct intel_boot_params params; u32 boot_param; char ddcname[64]; ktime_t calltime, delta, rettime; unsigned long long duration; int err; struct intel_debug_features features; BT_DBG("%s", hdev->name); /* Set the default boot parameter to 0x0 and it is updated to * SKU specific boot parameter after reading Intel_Write_Boot_Params * command while downloading the firmware. */ boot_param = 0x00000000; calltime = ktime_get(); /* Read the Intel version information to determine if the device * is in bootloader mode or if it already has operational firmware * loaded. */ err = btintel_read_version(hdev, &ver); if (err) { bt_dev_err(hdev, "Intel Read version failed (%d)", err); btintel_reset_to_bootloader(hdev); return err; } err = btusb_intel_download_firmware(hdev, &ver, ¶ms); if (err) return err; /* controller is already having an operational firmware */ if (ver.fw_variant == 0x23) goto finish; rettime = ktime_get(); delta = ktime_sub(rettime, calltime); duration = (unsigned long long) ktime_to_ns(delta) >> 10; bt_dev_info(hdev, "Firmware loaded in %llu usecs", duration); calltime = ktime_get(); set_bit(BTUSB_BOOTING, &data->flags); err = btintel_send_intel_reset(hdev, boot_param); if (err) { bt_dev_err(hdev, "Intel Soft Reset failed (%d)", err); btintel_reset_to_bootloader(hdev); return err; } /* The bootloader will not indicate when the device is ready. This * is done by the operational firmware sending bootup notification. * * Booting into operational firmware should not take longer than * 1 second. However if that happens, then just fail the setup * since something went wrong. */ bt_dev_info(hdev, "Waiting for device to boot"); err = wait_on_bit_timeout(&data->flags, BTUSB_BOOTING, TASK_INTERRUPTIBLE, msecs_to_jiffies(1000)); if (err == -EINTR) { bt_dev_err(hdev, "Device boot interrupted"); return -EINTR; } if (err) { bt_dev_err(hdev, "Device boot timeout"); btintel_reset_to_bootloader(hdev); return -ETIMEDOUT; } rettime = ktime_get(); delta = ktime_sub(rettime, calltime); duration = (unsigned long long) ktime_to_ns(delta) >> 10; bt_dev_info(hdev, "Device booted in %llu usecs", duration); clear_bit(BTUSB_BOOTLOADER, &data->flags); err = btusb_setup_intel_new_get_fw_name(&ver, ¶ms, ddcname, sizeof(ddcname), "ddc"); if (!err) { bt_dev_err(hdev, "Unsupported Intel firmware naming"); } else { /* Once the device is running in operational mode, it needs to * apply the device configuration (DDC) parameters. * * The device can work without DDC parameters, so even if it * fails to load the file, no need to fail the setup. */ btintel_load_ddc_config(hdev, ddcname); } /* Read the Intel supported features and if new exception formats * supported, need to load the additional DDC config to enable. */ btintel_read_debug_features(hdev, &features); /* Set DDC mask for available debug features */ btintel_set_debug_features(hdev, &features); /* Read the Intel version information after loading the FW */ err = btintel_read_version(hdev, &ver); if (err) return err; btintel_version_info(hdev, &ver); finish: /* All Intel controllers that support the Microsoft vendor * extension are using 0xFC1E for VsMsftOpCode. */ switch (ver.hw_variant) { case 0x12: /* ThP */ hci_set_msft_opcode(hdev, 0xFC1E); break; } /* Set the event mask for Intel specific vendor events. This enables * a few extra events that are useful during general operation. It * does not enable any debugging related events. * * The device will function correctly without these events enabled * and thus no need to fail the setup. */ btintel_set_event_mask(hdev, false); return 0; } static int btusb_shutdown_intel(struct hci_dev *hdev) { struct sk_buff *skb; long ret; /* In the shutdown sequence where Bluetooth is turned off followed * by WiFi being turned off, turning WiFi back on causes issue with * the RF calibration. * * To ensure that any RF activity has been stopped, issue HCI Reset * command to clear all ongoing activity including advertising, * scanning etc. */ skb = __hci_cmd_sync(hdev, HCI_OP_RESET, 0, NULL, HCI_INIT_TIMEOUT); if (IS_ERR(skb)) { ret = PTR_ERR(skb); bt_dev_err(hdev, "HCI reset during shutdown failed"); return ret; } kfree_skb(skb); /* Some platforms have an issue with BT LED when the interface is * down or BT radio is turned off, which takes 5 seconds to BT LED * goes off. This command turns off the BT LED immediately. */ skb = __hci_cmd_sync(hdev, 0xfc3f, 0, NULL, HCI_INIT_TIMEOUT); if (IS_ERR(skb)) { ret = PTR_ERR(skb); bt_dev_err(hdev, "turning off Intel device LED failed"); return ret; } kfree_skb(skb); return 0; } static int btusb_shutdown_intel_new(struct hci_dev *hdev) { struct sk_buff *skb; /* Send HCI Reset to the controller to stop any BT activity which * were triggered. This will help to save power and maintain the * sync b/w Host and controller */ skb = __hci_cmd_sync(hdev, HCI_OP_RESET, 0, NULL, HCI_INIT_TIMEOUT); if (IS_ERR(skb)) { bt_dev_err(hdev, "HCI reset during shutdown failed"); return PTR_ERR(skb); } kfree_skb(skb); return 0; } #define FIRMWARE_MT7663 "mediatek/mt7663pr2h.bin" #define FIRMWARE_MT7668 "mediatek/mt7668pr2h.bin" #define HCI_WMT_MAX_EVENT_SIZE 64 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_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[256]; } __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; }; 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++; goto err_out; } 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) goto err_out; } err = hci_recv_frame(hdev, skb); if (err < 0) goto err_free_skb; 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); } err_out: return; err_free_skb: kfree_skb(data->evt_skb); data->evt_skb = NULL; 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(100); 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); 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; /* Submit control IN URB on demand to process the WMT event */ err = btusb_mtk_submit_wmt_recv_urb(hdev); if (err < 0) return err; /* Send the WMT command and wait until the WMT event returns */ hlen = sizeof(*hdr) + wmt_params->dlen; if (hlen > 255) return -EINVAL; hdr = (struct btmtk_wmt_hdr *)&wc; 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); return err; } /* 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); return err; } if (err) { bt_dev_err(hdev, "Execution of wmt command timed out"); clear_bit(BTUSB_TX_WAIT_VND_EVT, &data->flags); return -ETIMEDOUT; } /* 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; } if (wmt_params->status) *wmt_params->status = status; err_free_skb: kfree_skb(data->evt_skb); data->evt_skb = NULL; 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); return err; } 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 deivice 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_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 *id) { return btusb_mtk_reg_read(data, 0x80000008, 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; u8 param; calltime = ktime_get(); err = btusb_mtk_id_get(data, &dev_id); if (err < 0) { bt_dev_err(hdev, "Failed to get device id (%d)", err); return err; } switch (dev_id) { case 0x7663: fwname = FIRMWARE_MT7663; break; case 0x7668: fwname = FIRMWARE_MT7668; break; default: bt_dev_err(hdev, "Unsupported support 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); 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; } MODULE_FIRMWARE(FIRMWARE_MT7663); MODULE_FIRMWARE(FIRMWARE_MT7668); #ifdef CONFIG_PM /* Configure an out-of-band gpio as wake-up pin, if specified in device tree */ static int marvell_config_oob_wake(struct hci_dev *hdev) { struct sk_buff *skb; struct btusb_data *data = hci_get_drvdata(hdev); struct device *dev = &data->udev->dev; u16 pin, gap, opcode; int ret; u8 cmd[5]; /* Move on if no wakeup pin specified */ if (of_property_read_u16(dev->of_node, "marvell,wakeup-pin", &pin) || of_property_read_u16(dev->of_node, "marvell,wakeup-gap-ms", &gap)) return 0; /* Vendor specific command to configure a GPIO as wake-up pin */ opcode = hci_opcode_pack(0x3F, 0x59); cmd[0] = opcode & 0xFF; cmd[1] = opcode >> 8; cmd[2] = 2; /* length of parameters that follow */ cmd[3] = pin; cmd[4] = gap; /* time in ms, for which wakeup pin should be asserted */ skb = bt_skb_alloc(sizeof(cmd), GFP_KERNEL); if (!skb) { bt_dev_err(hdev, "%s: No memory\n", __func__); return -ENOMEM; } skb_put_data(skb, cmd, sizeof(cmd)); hci_skb_pkt_type(skb) = HCI_COMMAND_PKT; ret = btusb_send_frame(hdev, skb); if (ret) { bt_dev_err(hdev, "%s: configuration failed\n", __func__); kfree_skb(skb); return ret; } return 0; } #endif static int btusb_set_bdaddr_marvell(struct hci_dev *hdev, const bdaddr_t *bdaddr) { struct sk_buff *skb; u8 buf[8]; long ret; buf[0] = 0xfe; buf[1] = sizeof(bdaddr_t); memcpy(buf + 2, bdaddr, sizeof(bdaddr_t)); skb = __hci_cmd_sync(hdev, 0xfc22, sizeof(buf), buf, HCI_INIT_TIMEOUT); if (IS_ERR(skb)) { ret = PTR_ERR(skb); bt_dev_err(hdev, "changing Marvell device address failed (%ld)", ret); return ret; } kfree_skb(skb); return 0; } static int btusb_set_bdaddr_ath3012(struct hci_dev *hdev, const bdaddr_t *bdaddr) { struct sk_buff *skb; u8 buf[10]; long ret; buf[0] = 0x01; buf[1] = 0x01; buf[2] = 0x00; buf[3] = sizeof(bdaddr_t); memcpy(buf + 4, bdaddr, sizeof(bdaddr_t)); skb = __hci_cmd_sync(hdev, 0xfc0b, sizeof(buf), buf, HCI_INIT_TIMEOUT); if (IS_ERR(skb)) { ret = PTR_ERR(skb); bt_dev_err(hdev, "Change address command failed (%ld)", ret); return ret; } kfree_skb(skb); return 0; } #define QCA_DFU_PACKET_LEN 4096 #define QCA_GET_TARGET_VERSION 0x09 #define QCA_CHECK_STATUS 0x05 #define QCA_DFU_DOWNLOAD 0x01 #define QCA_SYSCFG_UPDATED 0x40 #define QCA_PATCH_UPDATED 0x80 #define QCA_DFU_TIMEOUT 3000 struct qca_version { __le32 rom_version; __le32 patch_version; __le32 ram_version; __le32 ref_clock; __u8 reserved[4]; } __packed; struct qca_rampatch_version { __le16 rom_version; __le16 patch_version; } __packed; struct qca_device_info { u32 rom_version; u8 rampatch_hdr; /* length of header in rampatch */ u8 nvm_hdr; /* length of header in NVM */ u8 ver_offset; /* offset of version structure in rampatch */ }; static const struct qca_device_info qca_devices_table[] = { { 0x00000100, 20, 4, 10 }, /* Rome 1.0 */ { 0x00000101, 20, 4, 10 }, /* Rome 1.1 */ { 0x00000200, 28, 4, 18 }, /* Rome 2.0 */ { 0x00000201, 28, 4, 18 }, /* Rome 2.1 */ { 0x00000300, 28, 4, 18 }, /* Rome 3.0 */ { 0x00000302, 28, 4, 18 }, /* Rome 3.2 */ }; static int btusb_qca_send_vendor_req(struct usb_device *udev, u8 request, void *data, u16 size) { int pipe, err; u8 *buf; buf = kmalloc(size, GFP_KERNEL); if (!buf) return -ENOMEM; /* Found some of USB hosts have IOT issues with ours so that we should * not wait until HCI layer is ready. */ pipe = usb_rcvctrlpipe(udev, 0); err = usb_control_msg(udev, pipe, request, USB_TYPE_VENDOR | USB_DIR_IN, 0, 0, buf, size, USB_CTRL_SET_TIMEOUT); if (err < 0) { dev_err(&udev->dev, "Failed to access otp area (%d)", err); goto done; } memcpy(data, buf, size); done: kfree(buf); return err; } static int btusb_setup_qca_download_fw(struct hci_dev *hdev, const struct firmware *firmware, size_t hdr_size) { struct btusb_data *btdata = hci_get_drvdata(hdev); struct usb_device *udev = btdata->udev; size_t count, size, sent = 0; int pipe, len, err; u8 *buf; buf = kmalloc(QCA_DFU_PACKET_LEN, GFP_KERNEL); if (!buf) return -ENOMEM; count = firmware->size; size = min_t(size_t, count, hdr_size); memcpy(buf, firmware->data, size); /* USB patches should go down to controller through USB path * because binary format fits to go down through USB channel. * USB control path is for patching headers and USB bulk is for * patch body. */ pipe = usb_sndctrlpipe(udev, 0); err = usb_control_msg(udev, pipe, QCA_DFU_DOWNLOAD, USB_TYPE_VENDOR, 0, 0, buf, size, USB_CTRL_SET_TIMEOUT); if (err < 0) { bt_dev_err(hdev, "Failed to send headers (%d)", err); goto done; } sent += size; count -= size; while (count) { size = min_t(size_t, count, QCA_DFU_PACKET_LEN); memcpy(buf, firmware->data + sent, size); pipe = usb_sndbulkpipe(udev, 0x02); err = usb_bulk_msg(udev, pipe, buf, size, &len, QCA_DFU_TIMEOUT); if (err < 0) { bt_dev_err(hdev, "Failed to send body at %zd of %zd (%d)", sent, firmware->size, err); break; } if (size != len) { bt_dev_err(hdev, "Failed to get bulk buffer"); err = -EILSEQ; break; } sent += size; count -= size; } done: kfree(buf); return err; } static int btusb_setup_qca_load_rampatch(struct hci_dev *hdev, struct qca_version *ver, const struct qca_device_info *info) { struct qca_rampatch_version *rver; const struct firmware *fw; u32 ver_rom, ver_patch; u16 rver_rom, rver_patch; char fwname[64]; int err; ver_rom = le32_to_cpu(ver->rom_version); ver_patch = le32_to_cpu(ver->patch_version); snprintf(fwname, sizeof(fwname), "qca/rampatch_usb_%08x.bin", ver_rom); err = request_firmware(&fw, fwname, &hdev->dev); if (err) { bt_dev_err(hdev, "failed to request rampatch file: %s (%d)", fwname, err); return err; } bt_dev_info(hdev, "using rampatch file: %s", fwname); rver = (struct qca_rampatch_version *)(fw->data + info->ver_offset); rver_rom = le16_to_cpu(rver->rom_version); rver_patch = le16_to_cpu(rver->patch_version); bt_dev_info(hdev, "QCA: patch rome 0x%x build 0x%x, " "firmware rome 0x%x build 0x%x", rver_rom, rver_patch, ver_rom, ver_patch); if (rver_rom != ver_rom || rver_patch <= ver_patch) { bt_dev_err(hdev, "rampatch file version did not match with firmware"); err = -EINVAL; goto done; } err = btusb_setup_qca_download_fw(hdev, fw, info->rampatch_hdr); done: release_firmware(fw); return err; } static int btusb_setup_qca_load_nvm(struct hci_dev *hdev, struct qca_version *ver, const struct qca_device_info *info) { const struct firmware *fw; char fwname[64]; int err; snprintf(fwname, sizeof(fwname), "qca/nvm_usb_%08x.bin", le32_to_cpu(ver->rom_version)); err = request_firmware(&fw, fwname, &hdev->dev); if (err) { bt_dev_err(hdev, "failed to request NVM file: %s (%d)", fwname, err); return err; } bt_dev_info(hdev, "using NVM file: %s", fwname); err = btusb_setup_qca_download_fw(hdev, fw, info->nvm_hdr); release_firmware(fw); return err; } /* identify the ROM version and check whether patches are needed */ static bool btusb_qca_need_patch(struct usb_device *udev) { struct qca_version ver; if (btusb_qca_send_vendor_req(udev, QCA_GET_TARGET_VERSION, &ver, sizeof(ver)) < 0) return false; /* only low ROM versions need patches */ return !(le32_to_cpu(ver.rom_version) & ~0xffffU); } static int btusb_setup_qca(struct hci_dev *hdev) { struct btusb_data *btdata = hci_get_drvdata(hdev); struct usb_device *udev = btdata->udev; const struct qca_device_info *info = NULL; struct qca_version ver; u32 ver_rom; u8 status; int i, err; err = btusb_qca_send_vendor_req(udev, QCA_GET_TARGET_VERSION, &ver, sizeof(ver)); if (err < 0) return err; ver_rom = le32_to_cpu(ver.rom_version); /* Don't care about high ROM versions */ if (ver_rom & ~0xffffU) return 0; for (i = 0; i < ARRAY_SIZE(qca_devices_table); i++) { if (ver_rom == qca_devices_table[i].rom_version) info = &qca_devices_table[i]; } if (!info) { bt_dev_err(hdev, "don't support firmware rome 0x%x", ver_rom); return -ENODEV; } err = btusb_qca_send_vendor_req(udev, QCA_CHECK_STATUS, &status, sizeof(status)); if (err < 0) return err; if (!(status & QCA_PATCH_UPDATED)) { err = btusb_setup_qca_load_rampatch(hdev, &ver, info); if (err < 0) return err; } if (!(status & QCA_SYSCFG_UPDATED)) { err = btusb_setup_qca_load_nvm(hdev, &ver, info); if (err < 0) return err; } return 0; } static inline int __set_diag_interface(struct hci_dev *hdev) { struct btusb_data *data = hci_get_drvdata(hdev); struct usb_interface *intf = data->diag; int i; if (!data->diag) return -ENODEV; data->diag_tx_ep = NULL; data->diag_rx_ep = NULL; for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) { struct usb_endpoint_descriptor *ep_desc; ep_desc = &intf->cur_altsetting->endpoint[i].desc; if (!data->diag_tx_ep && usb_endpoint_is_bulk_out(ep_desc)) { data->diag_tx_ep = ep_desc; continue; } if (!data->diag_rx_ep && usb_endpoint_is_bulk_in(ep_desc)) { data->diag_rx_ep = ep_desc; continue; } } if (!data->diag_tx_ep || !data->diag_rx_ep) { bt_dev_err(hdev, "invalid diagnostic descriptors"); return -ENODEV; } return 0; } static struct urb *alloc_diag_urb(struct hci_dev *hdev, bool enable) { struct btusb_data *data = hci_get_drvdata(hdev); struct sk_buff *skb; struct urb *urb; unsigned int pipe; if (!data->diag_tx_ep) return ERR_PTR(-ENODEV); urb = usb_alloc_urb(0, GFP_KERNEL); if (!urb) return ERR_PTR(-ENOMEM); skb = bt_skb_alloc(2, GFP_KERNEL); if (!skb) { usb_free_urb(urb); return ERR_PTR(-ENOMEM); } skb_put_u8(skb, 0xf0); skb_put_u8(skb, enable); pipe = usb_sndbulkpipe(data->udev, data->diag_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 int btusb_bcm_set_diag(struct hci_dev *hdev, bool enable) { struct btusb_data *data = hci_get_drvdata(hdev); struct urb *urb; if (!data->diag) return -ENODEV; if (!test_bit(HCI_RUNNING, &hdev->flags)) return -ENETDOWN; urb = alloc_diag_urb(hdev, enable); if (IS_ERR(urb)) return PTR_ERR(urb); return submit_or_queue_tx_urb(hdev, urb); } #ifdef CONFIG_PM static irqreturn_t btusb_oob_wake_handler(int irq, void *priv) { struct btusb_data *data = priv; pm_wakeup_event(&data->udev->dev, 0); pm_system_wakeup(); /* Disable only if not already disabled (keep it balanced) */ if (test_and_clear_bit(BTUSB_OOB_WAKE_ENABLED, &data->flags)) { disable_irq_nosync(irq); disable_irq_wake(irq); } return IRQ_HANDLED; } static const struct of_device_id btusb_match_table[] = { { .compatible = "usb1286,204e" }, { .compatible = "usbcf3,e300" }, /* QCA6174A */ { .compatible = "usb4ca,301a" }, /* QCA6174A (Lite-On) */ { } }; MODULE_DEVICE_TABLE(of, btusb_match_table); /* Use an oob wakeup pin? */ static int btusb_config_oob_wake(struct hci_dev *hdev) { struct btusb_data *data = hci_get_drvdata(hdev); struct device *dev = &data->udev->dev; int irq, ret; clear_bit(BTUSB_OOB_WAKE_ENABLED, &data->flags); if (!of_match_device(btusb_match_table, dev)) return 0; /* Move on if no IRQ specified */ irq = of_irq_get_byname(dev->of_node, "wakeup"); if (irq <= 0) { bt_dev_dbg(hdev, "%s: no OOB Wakeup IRQ in DT", __func__); return 0; } irq_set_status_flags(irq, IRQ_NOAUTOEN); ret = devm_request_irq(&hdev->dev, irq, btusb_oob_wake_handler, 0, "OOB Wake-on-BT", data); if (ret) { bt_dev_err(hdev, "%s: IRQ request failed", __func__); return ret; } ret = device_init_wakeup(dev, true); if (ret) { bt_dev_err(hdev, "%s: failed to init_wakeup", __func__); return ret; } data->oob_wake_irq = irq; bt_dev_info(hdev, "OOB Wake-on-BT configured at IRQ %u", irq); return 0; } #endif static void btusb_check_needs_reset_resume(struct usb_interface *intf) { if (dmi_check_system(btusb_needs_reset_resume_table)) interface_to_usbdev(intf)->quirks |= USB_QUIRK_RESET_RESUME; } static bool btusb_prevent_wake(struct hci_dev *hdev) { struct btusb_data *data = hci_get_drvdata(hdev); if (test_bit(BTUSB_WAKEUP_DISABLE, &data->flags)) return true; return !device_may_wakeup(&data->udev->dev); } static int btusb_probe(struct usb_interface *intf, const struct usb_device_id *id) { struct usb_endpoint_descriptor *ep_desc; struct gpio_desc *reset_gpio; struct btusb_data *data; struct hci_dev *hdev; unsigned ifnum_base; int i, err; BT_DBG("intf %p id %p", intf, id); /* interface numbers are hardcoded in the spec */ if (intf->cur_altsetting->desc.bInterfaceNumber != 0) { if (!(id->driver_info & BTUSB_IFNUM_2)) return -ENODEV; if (intf->cur_altsetting->desc.bInterfaceNumber != 2) return -ENODEV; } ifnum_base = intf->cur_altsetting->desc.bInterfaceNumber; if (!id->driver_info) { const struct usb_device_id *match; match = usb_match_id(intf, blacklist_table); if (match) id = match; } if (id->driver_info == BTUSB_IGNORE) return -ENODEV; if (id->driver_info & BTUSB_ATH3012) { struct usb_device *udev = interface_to_usbdev(intf); /* Old firmware would otherwise let ath3k driver load * patch and sysconfig files */ if (le16_to_cpu(udev->descriptor.bcdDevice) <= 0x0001 && !btusb_qca_need_patch(udev)) return -ENODEV; } data = devm_kzalloc(&intf->dev, sizeof(*data), GFP_KERNEL); if (!data) return -ENOMEM; for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) { ep_desc = &intf->cur_altsetting->endpoint[i].desc; if (!data->intr_ep && usb_endpoint_is_int_in(ep_desc)) { data->intr_ep = ep_desc; continue; } if (!data->bulk_tx_ep && usb_endpoint_is_bulk_out(ep_desc)) { data->bulk_tx_ep = ep_desc; continue; } if (!data->bulk_rx_ep && usb_endpoint_is_bulk_in(ep_desc)) { data->bulk_rx_ep = ep_desc; continue; } } if (!data->intr_ep || !data->bulk_tx_ep || !data->bulk_rx_ep) return -ENODEV; if (id->driver_info & BTUSB_AMP) { data->cmdreq_type = USB_TYPE_CLASS | 0x01; data->cmdreq = 0x2b; } else { data->cmdreq_type = USB_TYPE_CLASS; data->cmdreq = 0x00; } data->udev = interface_to_usbdev(intf); data->intf = intf; INIT_WORK(&data->work, btusb_work); INIT_WORK(&data->waker, btusb_waker); init_usb_anchor(&data->deferred); init_usb_anchor(&data->tx_anchor); spin_lock_init(&data->txlock); init_usb_anchor(&data->intr_anchor); init_usb_anchor(&data->bulk_anchor); init_usb_anchor(&data->isoc_anchor); init_usb_anchor(&data->diag_anchor); init_usb_anchor(&data->ctrl_anchor); spin_lock_init(&data->rxlock); if (id->driver_info & BTUSB_INTEL_NEW) { data->recv_event = btusb_recv_event_intel; data->recv_bulk = btusb_recv_bulk_intel; set_bit(BTUSB_BOOTLOADER, &data->flags); } else { data->recv_event = hci_recv_frame; data->recv_bulk = btusb_recv_bulk; } hdev = hci_alloc_dev(); if (!hdev) return -ENOMEM; hdev->bus = HCI_USB; hci_set_drvdata(hdev, data); if (id->driver_info & BTUSB_AMP) hdev->dev_type = HCI_AMP; else hdev->dev_type = HCI_PRIMARY; data->hdev = hdev; SET_HCIDEV_DEV(hdev, &intf->dev); reset_gpio = gpiod_get_optional(&data->udev->dev, "reset", GPIOD_OUT_LOW); if (IS_ERR(reset_gpio)) { err = PTR_ERR(reset_gpio); goto out_free_dev; } else if (reset_gpio) { data->reset_gpio = reset_gpio; } hdev->open = btusb_open; hdev->close = btusb_close; hdev->flush = btusb_flush; hdev->send = btusb_send_frame; hdev->notify = btusb_notify; hdev->prevent_wake = btusb_prevent_wake; #ifdef CONFIG_PM err = btusb_config_oob_wake(hdev); if (err) goto out_free_dev; /* Marvell devices may need a specific chip configuration */ if (id->driver_info & BTUSB_MARVELL && data->oob_wake_irq) { err = marvell_config_oob_wake(hdev); if (err) goto out_free_dev; } #endif if (id->driver_info & BTUSB_CW6622) set_bit(HCI_QUIRK_BROKEN_STORED_LINK_KEY, &hdev->quirks); if (id->driver_info & BTUSB_BCM2045) set_bit(HCI_QUIRK_BROKEN_STORED_LINK_KEY, &hdev->quirks); if (id->driver_info & BTUSB_BCM92035) hdev->setup = btusb_setup_bcm92035; if (IS_ENABLED(CONFIG_BT_HCIBTUSB_BCM) && (id->driver_info & BTUSB_BCM_PATCHRAM)) { hdev->manufacturer = 15; hdev->setup = btbcm_setup_patchram; hdev->set_diag = btusb_bcm_set_diag; hdev->set_bdaddr = btbcm_set_bdaddr; /* Broadcom LM_DIAG Interface numbers are hardcoded */ data->diag = usb_ifnum_to_if(data->udev, ifnum_base + 2); } if (IS_ENABLED(CONFIG_BT_HCIBTUSB_BCM) && (id->driver_info & BTUSB_BCM_APPLE)) { hdev->manufacturer = 15; hdev->setup = btbcm_setup_apple; hdev->set_diag = btusb_bcm_set_diag; /* Broadcom LM_DIAG Interface numbers are hardcoded */ data->diag = usb_ifnum_to_if(data->udev, ifnum_base + 2); } if (id->driver_info & BTUSB_INTEL) { hdev->manufacturer = 2; hdev->setup = btusb_setup_intel; hdev->shutdown = btusb_shutdown_intel; hdev->set_diag = btintel_set_diag_mfg; hdev->set_bdaddr = btintel_set_bdaddr; hdev->cmd_timeout = btusb_intel_cmd_timeout; set_bit(HCI_QUIRK_STRICT_DUPLICATE_FILTER, &hdev->quirks); set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks); set_bit(HCI_QUIRK_NON_PERSISTENT_DIAG, &hdev->quirks); } if (id->driver_info & BTUSB_INTEL_NEW) { hdev->manufacturer = 2; hdev->send = btusb_send_frame_intel; hdev->setup = btusb_setup_intel_new; hdev->shutdown = btusb_shutdown_intel_new; hdev->hw_error = btintel_hw_error; hdev->set_diag = btintel_set_diag; hdev->set_bdaddr = btintel_set_bdaddr; hdev->cmd_timeout = btusb_intel_cmd_timeout; set_bit(HCI_QUIRK_STRICT_DUPLICATE_FILTER, &hdev->quirks); set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks); set_bit(HCI_QUIRK_NON_PERSISTENT_DIAG, &hdev->quirks); } if (id->driver_info & BTUSB_MARVELL) hdev->set_bdaddr = btusb_set_bdaddr_marvell; if (IS_ENABLED(CONFIG_BT_HCIBTUSB_MTK) && (id->driver_info & BTUSB_MEDIATEK)) { hdev->setup = btusb_mtk_setup; hdev->shutdown = btusb_mtk_shutdown; hdev->manufacturer = 70; set_bit(HCI_QUIRK_NON_PERSISTENT_SETUP, &hdev->quirks); } if (id->driver_info & BTUSB_SWAVE) { set_bit(HCI_QUIRK_FIXUP_INQUIRY_MODE, &hdev->quirks); set_bit(HCI_QUIRK_BROKEN_LOCAL_COMMANDS, &hdev->quirks); } if (id->driver_info & BTUSB_INTEL_BOOT) { hdev->manufacturer = 2; set_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks); } if (id->driver_info & BTUSB_ATH3012) { data->setup_on_usb = btusb_setup_qca; hdev->set_bdaddr = btusb_set_bdaddr_ath3012; set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks); set_bit(HCI_QUIRK_STRICT_DUPLICATE_FILTER, &hdev->quirks); } if (id->driver_info & BTUSB_QCA_ROME) { data->setup_on_usb = btusb_setup_qca; hdev->set_bdaddr = btusb_set_bdaddr_ath3012; hdev->cmd_timeout = btusb_qca_cmd_timeout; set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks); btusb_check_needs_reset_resume(intf); } if (id->driver_info & BTUSB_AMP) { /* AMP controllers do not support SCO packets */ data->isoc = NULL; } else { /* Interface orders are hardcoded in the specification */ data->isoc = usb_ifnum_to_if(data->udev, ifnum_base + 1); data->isoc_ifnum = ifnum_base + 1; } if (IS_ENABLED(CONFIG_BT_HCIBTUSB_RTL) && (id->driver_info & BTUSB_REALTEK)) { hdev->setup = btrtl_setup_realtek; hdev->shutdown = btrtl_shutdown_realtek; hdev->cmd_timeout = btusb_rtl_cmd_timeout; /* Realtek devices lose their updated firmware over global * suspend that means host doesn't send SET_FEATURE * (DEVICE_REMOTE_WAKEUP) */ set_bit(BTUSB_WAKEUP_DISABLE, &data->flags); if (btusb_find_altsetting(data, 1)) set_bit(BTUSB_USE_ALT1_FOR_WBS, &data->flags); else bt_dev_err(hdev, "Device does not support ALT setting 1"); } if (!reset) set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks); if (force_scofix || id->driver_info & BTUSB_WRONG_SCO_MTU) { if (!disable_scofix) set_bit(HCI_QUIRK_FIXUP_BUFFER_SIZE, &hdev->quirks); } if (id->driver_info & BTUSB_BROKEN_ISOC) data->isoc = NULL; if (id->driver_info & BTUSB_WIDEBAND_SPEECH) set_bit(HCI_QUIRK_WIDEBAND_SPEECH_SUPPORTED, &hdev->quirks); if (id->driver_info & BTUSB_VALID_LE_STATES) set_bit(HCI_QUIRK_VALID_LE_STATES, &hdev->quirks); if (id->driver_info & BTUSB_DIGIANSWER) { data->cmdreq_type = USB_TYPE_VENDOR; set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks); } if (id->driver_info & BTUSB_CSR) { struct usb_device *udev = data->udev; u16 bcdDevice = le16_to_cpu(udev->descriptor.bcdDevice); /* Old firmware would otherwise execute USB reset */ if (bcdDevice < 0x117) set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks); /* This must be set first in case we disable it for fakes */ set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks); /* Fake CSR devices with broken commands */ if (le16_to_cpu(udev->descriptor.idVendor) == 0x0a12 && le16_to_cpu(udev->descriptor.idProduct) == 0x0001) hdev->setup = btusb_setup_csr; } if (id->driver_info & BTUSB_SNIFFER) { struct usb_device *udev = data->udev; /* New sniffer firmware has crippled HCI interface */ if (le16_to_cpu(udev->descriptor.bcdDevice) > 0x997) set_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks); } if (id->driver_info & BTUSB_INTEL_BOOT) { /* A bug in the bootloader causes that interrupt interface is * only enabled after receiving SetInterface(0, AltSetting=0). */ err = usb_set_interface(data->udev, 0, 0); if (err < 0) { BT_ERR("failed to set interface 0, alt 0 %d", err); goto out_free_dev; } } if (data->isoc) { err = usb_driver_claim_interface(&btusb_driver, data->isoc, data); if (err < 0) goto out_free_dev; } if (IS_ENABLED(CONFIG_BT_HCIBTUSB_BCM) && data->diag) { if (!usb_driver_claim_interface(&btusb_driver, data->diag, data)) __set_diag_interface(hdev); else data->diag = NULL; } if (enable_autosuspend) usb_enable_autosuspend(data->udev); err = hci_register_dev(hdev); if (err < 0) goto out_free_dev; usb_set_intfdata(intf, data); return 0; out_free_dev: if (data->reset_gpio) gpiod_put(data->reset_gpio); hci_free_dev(hdev); return err; } static void btusb_disconnect(struct usb_interface *intf) { struct btusb_data *data = usb_get_intfdata(intf); struct hci_dev *hdev; BT_DBG("intf %p", intf); if (!data) return; hdev = data->hdev; usb_set_intfdata(data->intf, NULL); if (data->isoc) usb_set_intfdata(data->isoc, NULL); if (data->diag) usb_set_intfdata(data->diag, NULL); hci_unregister_dev(hdev); if (intf == data->intf) { if (data->isoc) usb_driver_release_interface(&btusb_driver, data->isoc); if (data->diag) usb_driver_release_interface(&btusb_driver, data->diag); } else if (intf == data->isoc) { if (data->diag) usb_driver_release_interface(&btusb_driver, data->diag); usb_driver_release_interface(&btusb_driver, data->intf); } else if (intf == data->diag) { usb_driver_release_interface(&btusb_driver, data->intf); if (data->isoc) usb_driver_release_interface(&btusb_driver, data->isoc); } if (data->oob_wake_irq) device_init_wakeup(&data->udev->dev, false); if (data->reset_gpio) gpiod_put(data->reset_gpio); hci_free_dev(hdev); } #ifdef CONFIG_PM static int btusb_suspend(struct usb_interface *intf, pm_message_t message) { struct btusb_data *data = usb_get_intfdata(intf); BT_DBG("intf %p", intf); if (data->suspend_count++) return 0; spin_lock_irq(&data->txlock); if (!(PMSG_IS_AUTO(message) && data->tx_in_flight)) { set_bit(BTUSB_SUSPENDING, &data->flags); spin_unlock_irq(&data->txlock); } else { spin_unlock_irq(&data->txlock); data->suspend_count--; return -EBUSY; } cancel_work_sync(&data->work); btusb_stop_traffic(data); usb_kill_anchored_urbs(&data->tx_anchor); if (data->oob_wake_irq && device_may_wakeup(&data->udev->dev)) { set_bit(BTUSB_OOB_WAKE_ENABLED, &data->flags); enable_irq_wake(data->oob_wake_irq); enable_irq(data->oob_wake_irq); } /* For global suspend, Realtek devices lose the loaded fw * in them. But for autosuspend, firmware should remain. * Actually, it depends on whether the usb host sends * set feature (enable wakeup) or not. */ if (test_bit(BTUSB_WAKEUP_DISABLE, &data->flags)) { if (PMSG_IS_AUTO(message) && device_can_wakeup(&data->udev->dev)) data->udev->do_remote_wakeup = 1; else if (!PMSG_IS_AUTO(message)) data->udev->reset_resume = 1; } return 0; } static void play_deferred(struct btusb_data *data) { struct urb *urb; int err; while ((urb = usb_get_from_anchor(&data->deferred))) { usb_anchor_urb(urb, &data->tx_anchor); err = usb_submit_urb(urb, GFP_ATOMIC); if (err < 0) { if (err != -EPERM && err != -ENODEV) BT_ERR("%s urb %p submission failed (%d)", data->hdev->name, urb, -err); kfree(urb->setup_packet); usb_unanchor_urb(urb); usb_free_urb(urb); break; } data->tx_in_flight++; usb_free_urb(urb); } /* Cleanup the rest deferred urbs. */ while ((urb = usb_get_from_anchor(&data->deferred))) { kfree(urb->setup_packet); usb_free_urb(urb); } } static int btusb_resume(struct usb_interface *intf) { struct btusb_data *data = usb_get_intfdata(intf); struct hci_dev *hdev = data->hdev; int err = 0; BT_DBG("intf %p", intf); if (--data->suspend_count) return 0; /* Disable only if not already disabled (keep it balanced) */ if (test_and_clear_bit(BTUSB_OOB_WAKE_ENABLED, &data->flags)) { disable_irq(data->oob_wake_irq); disable_irq_wake(data->oob_wake_irq); } if (!test_bit(HCI_RUNNING, &hdev->flags)) goto done; if (test_bit(BTUSB_INTR_RUNNING, &data->flags)) { err = btusb_submit_intr_urb(hdev, GFP_NOIO); if (err < 0) { clear_bit(BTUSB_INTR_RUNNING, &data->flags); goto failed; } } if (test_bit(BTUSB_BULK_RUNNING, &data->flags)) { err = btusb_submit_bulk_urb(hdev, GFP_NOIO); if (err < 0) { clear_bit(BTUSB_BULK_RUNNING, &data->flags); goto failed; } btusb_submit_bulk_urb(hdev, GFP_NOIO); } if (test_bit(BTUSB_ISOC_RUNNING, &data->flags)) { if (btusb_submit_isoc_urb(hdev, GFP_NOIO) < 0) clear_bit(BTUSB_ISOC_RUNNING, &data->flags); else btusb_submit_isoc_urb(hdev, GFP_NOIO); } spin_lock_irq(&data->txlock); play_deferred(data); clear_bit(BTUSB_SUSPENDING, &data->flags); spin_unlock_irq(&data->txlock); schedule_work(&data->work); return 0; failed: usb_scuttle_anchored_urbs(&data->deferred); done: spin_lock_irq(&data->txlock); clear_bit(BTUSB_SUSPENDING, &data->flags); spin_unlock_irq(&data->txlock); return err; } #endif static struct usb_driver btusb_driver = { .name = "btusb", .probe = btusb_probe, .disconnect = btusb_disconnect, #ifdef CONFIG_PM .suspend = btusb_suspend, .resume = btusb_resume, #endif .id_table = btusb_table, .supports_autosuspend = 1, .disable_hub_initiated_lpm = 1, }; module_usb_driver(btusb_driver); module_param(disable_scofix, bool, 0644); MODULE_PARM_DESC(disable_scofix, "Disable fixup of wrong SCO buffer size"); module_param(force_scofix, bool, 0644); MODULE_PARM_DESC(force_scofix, "Force fixup of wrong SCO buffers size"); module_param(enable_autosuspend, bool, 0644); MODULE_PARM_DESC(enable_autosuspend, "Enable USB autosuspend by default"); module_param(reset, bool, 0644); MODULE_PARM_DESC(reset, "Send HCI reset command on initialization"); MODULE_AUTHOR("Marcel Holtmann <marcel@holtmann.org>"); MODULE_DESCRIPTION("Generic Bluetooth USB driver ver " VERSION); MODULE_VERSION(VERSION); MODULE_LICENSE("GPL");
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