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|
- // 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
- #define BTUSB_QCA_WCN6855 0x1000000
- 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 |
- BTUSB_WIDEBAND_SPEECH },
- { USB_DEVICE(0x0cf3, 0xe007), .driver_info = BTUSB_QCA_ROME |
- BTUSB_WIDEBAND_SPEECH },
- { USB_DEVICE(0x0cf3, 0xe009), .driver_info = BTUSB_QCA_ROME |
- BTUSB_WIDEBAND_SPEECH },
- { USB_DEVICE(0x0cf3, 0xe010), .driver_info = BTUSB_QCA_ROME |
- BTUSB_WIDEBAND_SPEECH },
- { USB_DEVICE(0x0cf3, 0xe300), .driver_info = BTUSB_QCA_ROME |
- BTUSB_WIDEBAND_SPEECH },
- { USB_DEVICE(0x0cf3, 0xe301), .driver_info = BTUSB_QCA_ROME |
- BTUSB_WIDEBAND_SPEECH },
- { USB_DEVICE(0x0cf3, 0xe360), .driver_info = BTUSB_QCA_ROME |
- BTUSB_WIDEBAND_SPEECH },
- { USB_DEVICE(0x0cf3, 0xe500), .driver_info = BTUSB_QCA_ROME |
- BTUSB_WIDEBAND_SPEECH },
- { USB_DEVICE(0x0489, 0xe092), .driver_info = BTUSB_QCA_ROME |
- BTUSB_WIDEBAND_SPEECH },
- { USB_DEVICE(0x0489, 0xe09f), .driver_info = BTUSB_QCA_ROME |
- BTUSB_WIDEBAND_SPEECH },
- { USB_DEVICE(0x0489, 0xe0a2), .driver_info = BTUSB_QCA_ROME |
- BTUSB_WIDEBAND_SPEECH },
- { USB_DEVICE(0x04ca, 0x3011), .driver_info = BTUSB_QCA_ROME |
- BTUSB_WIDEBAND_SPEECH },
- { USB_DEVICE(0x04ca, 0x3015), .driver_info = BTUSB_QCA_ROME |
- BTUSB_WIDEBAND_SPEECH },
- { USB_DEVICE(0x04ca, 0x3016), .driver_info = BTUSB_QCA_ROME |
- BTUSB_WIDEBAND_SPEECH },
- { USB_DEVICE(0x04ca, 0x301a), .driver_info = BTUSB_QCA_ROME |
- BTUSB_WIDEBAND_SPEECH },
- { USB_DEVICE(0x04ca, 0x3021), .driver_info = BTUSB_QCA_ROME |
- BTUSB_WIDEBAND_SPEECH },
- { USB_DEVICE(0x13d3, 0x3491), .driver_info = BTUSB_QCA_ROME |
- BTUSB_WIDEBAND_SPEECH },
- { USB_DEVICE(0x13d3, 0x3496), .driver_info = BTUSB_QCA_ROME |
- BTUSB_WIDEBAND_SPEECH },
- { USB_DEVICE(0x13d3, 0x3501), .driver_info = BTUSB_QCA_ROME |
- BTUSB_WIDEBAND_SPEECH },
- /* QCA WCN6855 chipset */
- { USB_DEVICE(0x0cf3, 0xe600), .driver_info = BTUSB_QCA_WCN6855 |
- BTUSB_WIDEBAND_SPEECH },
- /* 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 },
- { USB_DEVICE(0x10ab, 0x9309), .driver_info = BTUSB_QCA_WCN6855 |
- BTUSB_WIDEBAND_SPEECH |
- BTUSB_VALID_LE_STATES },
- { USB_DEVICE(0x10ab, 0x9409), .driver_info = BTUSB_QCA_WCN6855 |
- BTUSB_WIDEBAND_SPEECH |
- BTUSB_VALID_LE_STATES },
- { USB_DEVICE(0x0489, 0xe0d0), .driver_info = BTUSB_QCA_WCN6855 |
- 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 },
- { USB_DEVICE(0x0bda, 0xc822), .driver_info = BTUSB_REALTEK |
- BTUSB_WIDEBAND_SPEECH },
- /* Realtek Bluetooth devices */
- { USB_VENDOR_AND_INTERFACE_INFO(0x0bda, 0xe0, 0x01, 0x01),
- .driver_info = BTUSB_REALTEK },
- /* MediaTek Bluetooth devices */
- { USB_VENDOR_AND_INTERFACE_INFO(0x0e8d, 0xe0, 0x01, 0x01),
- .driver_info = BTUSB_MEDIATEK |
- BTUSB_WIDEBAND_SPEECH |
- BTUSB_VALID_LE_STATES },
- /* MediaTek MT7922A Bluetooth devices */
- { USB_DEVICE(0x0489, 0xe0d8), .driver_info = BTUSB_MEDIATEK |
- BTUSB_WIDEBAND_SPEECH |
- BTUSB_VALID_LE_STATES },
- { USB_DEVICE(0x0489, 0xe0d9), .driver_info = BTUSB_MEDIATEK |
- BTUSB_WIDEBAND_SPEECH |
- BTUSB_VALID_LE_STATES },
- /* Additional Realtek 8723AE Bluetooth devices */
- { USB_DEVICE(0x0930, 0x021d), .driver_info = BTUSB_REALTEK },
- { USB_DEVICE(0x13d3, 0x3394), .driver_info = BTUSB_REALTEK },
- /* Additional Realtek 8723BE Bluetooth devices */
- { USB_DEVICE(0x0489, 0xe085), .driver_info = BTUSB_REALTEK },
- { USB_DEVICE(0x0489, 0xe08b), .driver_info = BTUSB_REALTEK },
- { USB_DEVICE(0x13d3, 0x3410), .driver_info = BTUSB_REALTEK },
- { USB_DEVICE(0x13d3, 0x3416), .driver_info = BTUSB_REALTEK },
- { USB_DEVICE(0x13d3, 0x3459), .driver_info = BTUSB_REALTEK },
- { USB_DEVICE(0x13d3, 0x3494), .driver_info = BTUSB_REALTEK },
- /* Additional Realtek 8723BU Bluetooth devices */
- { USB_DEVICE(0x7392, 0xa611), .driver_info = BTUSB_REALTEK },
- /* Additional Realtek 8723DE Bluetooth devices */
- { USB_DEVICE(0x0bda, 0xb009), .driver_info = BTUSB_REALTEK },
- { USB_DEVICE(0x2ff8, 0xb011), .driver_info = BTUSB_REALTEK },
- /* Additional Realtek 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_ALT3_FOR_WBS 15
- struct btusb_data {
- struct hci_dev *hdev;
- struct usb_device *udev;
- struct usb_interface *intf;
- struct usb_interface *isoc;
- struct usb_interface *diag;
- unsigned isoc_ifnum;
- unsigned long flags;
- struct work_struct work;
- struct work_struct waker;
- struct usb_anchor deferred;
- struct usb_anchor tx_anchor;
- int tx_in_flight;
- spinlock_t txlock;
- struct usb_anchor intr_anchor;
- struct usb_anchor bulk_anchor;
- struct usb_anchor isoc_anchor;
- struct usb_anchor diag_anchor;
- struct usb_anchor ctrl_anchor;
- spinlock_t rxlock;
- struct sk_buff *evt_skb;
- struct sk_buff *acl_skb;
- struct sk_buff *sco_skb;
- struct usb_endpoint_descriptor *intr_ep;
- struct usb_endpoint_descriptor *bulk_tx_ep;
- struct usb_endpoint_descriptor *bulk_rx_ep;
- struct usb_endpoint_descriptor *isoc_tx_ep;
- struct usb_endpoint_descriptor *isoc_rx_ep;
- struct usb_endpoint_descriptor *diag_tx_ep;
- struct usb_endpoint_descriptor *diag_rx_ep;
- struct gpio_desc *reset_gpio;
- __u8 cmdreq_type;
- __u8 cmdreq;
- unsigned int sco_num;
- unsigned int air_mode;
- bool usb_alt6_packet_flow;
- int isoc_altsetting;
- int suspend_count;
- int (*recv_event)(struct hci_dev *hdev, struct sk_buff *skb);
- int (*recv_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) {
- /* Bluetooth USB spec recommends alt 6 (63 bytes), but
- * many adapters do not support it. Alt 1 appears to
- * work for all adapters that do not have alt 6, and
- * which work with WBS at all. Some devices prefer
- * alt 3 (HCI payload >= 60 Bytes let air packet
- * data satisfy 60 bytes), requiring
- * MTU >= 3 (packets) * 25 (size) - 3 (headers) = 72
- * see also Core spec 5, vol 4, B 2.1.1 & Table 2.1.
- */
- if (btusb_find_altsetting(data, 6))
- new_alts = 6;
- else if (btusb_find_altsetting(data, 3) &&
- hdev->sco_mtu >= 72 &&
- test_bit(BTUSB_USE_ALT3_FOR_WBS, &data->flags))
- new_alts = 3;
- else
- new_alts = 1;
- }
- if (btusb_switch_alt_setting(hdev, new_alts) < 0)
- bt_dev_err(hdev, "set USB alt:(%d) failed!", new_alts);
- } else {
- clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
- usb_kill_anchored_urbs(&data->isoc_anchor);
- __set_isoc_interface(hdev, 0);
- if (test_and_clear_bit(BTUSB_DID_ISO_RESUME, &data->flags))
- usb_autopm_put_interface(data->isoc ? data->isoc : data->intf);
- }
- }
- static void btusb_waker(struct work_struct *work)
- {
- struct btusb_data *data = container_of(work, struct btusb_data, waker);
- int err;
- err = usb_autopm_get_interface(data->intf);
- if (err < 0)
- return;
- usb_autopm_put_interface(data->intf);
- }
- static int btusb_setup_bcm92035(struct hci_dev *hdev)
- {
- struct sk_buff *skb;
- u8 val = 0x00;
- BT_DBG("%s", hdev->name);
- skb = __hci_cmd_sync(hdev, 0xfc3b, 1, &val, HCI_INIT_TIMEOUT);
- if (IS_ERR(skb))
- bt_dev_err(hdev, "BCM92035 command failed (%ld)", PTR_ERR(skb));
- else
- kfree_skb(skb);
- return 0;
- }
- static int btusb_setup_csr(struct hci_dev *hdev)
- {
- struct btusb_data *data = hci_get_drvdata(hdev);
- u16 bcdDevice = le16_to_cpu(data->udev->descriptor.bcdDevice);
- struct hci_rp_read_local_version *rp;
- struct sk_buff *skb;
- bool is_fake = false;
- BT_DBG("%s", hdev->name);
- skb = __hci_cmd_sync(hdev, HCI_OP_READ_LOCAL_VERSION, 0, NULL,
- HCI_INIT_TIMEOUT);
- if (IS_ERR(skb)) {
- int err = PTR_ERR(skb);
- bt_dev_err(hdev, "CSR: Local version failed (%d)", err);
- return err;
- }
- if (skb->len != sizeof(struct hci_rp_read_local_version)) {
- bt_dev_err(hdev, "CSR: Local version length mismatch");
- kfree_skb(skb);
- return -EIO;
- }
- rp = (struct hci_rp_read_local_version *)skb->data;
- /* Detect a wide host of Chinese controllers that aren't CSR.
- *
- * Known fake bcdDevices: 0x0100, 0x0134, 0x1915, 0x2520, 0x7558, 0x8891
- *
- * The main thing they have in common is that these are really popular low-cost
- * options that support newer Bluetooth versions but rely on heavy VID/PID
- * squatting of this poor old Bluetooth 1.1 device. Even sold as such.
- *
- * We detect actual CSR devices by checking that the HCI manufacturer code
- * is Cambridge Silicon Radio (10) and ensuring that LMP sub-version and
- * HCI rev values always match. As they both store the firmware number.
- */
- if (le16_to_cpu(rp->manufacturer) != 10 ||
- le16_to_cpu(rp->hci_rev) != le16_to_cpu(rp->lmp_subver))
- is_fake = true;
- /* Known legit CSR firmware build numbers and their supported BT versions:
- * - 1.1 (0x1) -> 0x0073, 0x020d, 0x033c, 0x034e
- * - 1.2 (0x2) -> 0x04d9, 0x0529
- * - 2.0 (0x3) -> 0x07a6, 0x07ad, 0x0c5c
- * - 2.1 (0x4) -> 0x149c, 0x1735, 0x1899 (0x1899 is a BlueCore4-External)
- * - 4.0 (0x6) -> 0x1d86, 0x2031, 0x22bb
- *
- * e.g. Real CSR dongles with LMP subversion 0x73 are old enough that
- * support BT 1.1 only; so it's a dead giveaway when some
- * third-party BT 4.0 dongle reuses it.
- */
- else if (le16_to_cpu(rp->lmp_subver) <= 0x034e &&
- le16_to_cpu(rp->hci_ver) > BLUETOOTH_VER_1_1)
- is_fake = true;
- else if (le16_to_cpu(rp->lmp_subver) <= 0x0529 &&
- le16_to_cpu(rp->hci_ver) > BLUETOOTH_VER_1_2)
- is_fake = true;
- else if (le16_to_cpu(rp->lmp_subver) <= 0x0c5c &&
- le16_to_cpu(rp->hci_ver) > BLUETOOTH_VER_2_0)
- is_fake = true;
- else if (le16_to_cpu(rp->lmp_subver) <= 0x1899 &&
- le16_to_cpu(rp->hci_ver) > BLUETOOTH_VER_2_1)
- is_fake = true;
- else if (le16_to_cpu(rp->lmp_subver) <= 0x22bb &&
- le16_to_cpu(rp->hci_ver) > BLUETOOTH_VER_4_0)
- is_fake = true;
- /* Other clones which beat all the above checks */
- else if (bcdDevice == 0x0134 &&
- le16_to_cpu(rp->lmp_subver) == 0x0c5c &&
- le16_to_cpu(rp->hci_ver) == BLUETOOTH_VER_2_0)
- is_fake = true;
- if (is_fake) {
- bt_dev_warn(hdev, "CSR: Unbranded CSR clone detected; adding workarounds...");
- /* 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,
- u32 *boot_param)
- {
- const struct firmware *fw;
- 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, &boot_param);
- 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++;
- kfree(urb->setup_packet);
- return;
- }
- hci_skb_pkt_type(skb) = HCI_EVENT_PKT;
- skb_put_data(skb, urb->transfer_buffer, urb->actual_length);
- hdr = (void *)skb->data;
- /* Fix up the vendor event id with 0xff for vendor specific
- * instead of 0xe4 so that event send via monitoring socket can
- * be parsed properly.
- */
- hdr->evt = 0xff;
- /* When someone waits for the WMT event, the skb is being cloned
- * and being processed the events from there then.
- */
- if (test_bit(BTUSB_TX_WAIT_VND_EVT, &data->flags)) {
- data->evt_skb = skb_clone(skb, GFP_ATOMIC);
- if (!data->evt_skb) {
- kfree_skb(skb);
- kfree(urb->setup_packet);
- return;
- }
- }
- err = hci_recv_frame(hdev, skb);
- if (err < 0) {
- kfree_skb(data->evt_skb);
- data->evt_skb = NULL;
- kfree(urb->setup_packet);
- return;
- }
- if (test_and_clear_bit(BTUSB_TX_WAIT_VND_EVT,
- &data->flags)) {
- /* Barrier to sync with other CPUs */
- smp_mb__after_atomic();
- wake_up_bit(&data->flags,
- BTUSB_TX_WAIT_VND_EVT);
- }
- kfree(urb->setup_packet);
- 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) {
- kfree(urb->setup_packet);
- /* -EPERM: urb is being killed;
- * -ENODEV: device got disconnected
- */
- if (err != -EPERM && err != -ENODEV)
- bt_dev_err(hdev, "urb %p failed to resubmit (%d)",
- urb, -err);
- usb_unanchor_urb(urb);
- }
- }
- static int btusb_mtk_submit_wmt_recv_urb(struct hci_dev *hdev)
- {
- struct btusb_data *data = hci_get_drvdata(hdev);
- struct usb_ctrlrequest *dr;
- unsigned char *buf;
- int err, size = 64;
- unsigned int pipe;
- struct urb *urb;
- urb = usb_alloc_urb(0, GFP_KERNEL);
- if (!urb)
- return -ENOMEM;
- dr = kmalloc(sizeof(*dr), GFP_KERNEL);
- if (!dr) {
- usb_free_urb(urb);
- return -ENOMEM;
- }
- dr->bRequestType = USB_TYPE_VENDOR | USB_DIR_IN;
- dr->bRequest = 1;
- dr->wIndex = cpu_to_le16(0);
- dr->wValue = cpu_to_le16(48);
- dr->wLength = cpu_to_le16(size);
- buf = kmalloc(size, GFP_KERNEL);
- if (!buf) {
- kfree(dr);
- usb_free_urb(urb);
- return -ENOMEM;
- }
- pipe = usb_rcvctrlpipe(data->udev, 0);
- usb_fill_control_urb(urb, data->udev, pipe, (void *)dr,
- buf, size, btusb_mtk_wmt_recv, hdev);
- urb->transfer_flags |= URB_FREE_BUFFER;
- usb_anchor_urb(urb, &data->ctrl_anchor);
- err = usb_submit_urb(urb, GFP_KERNEL);
- if (err < 0) {
- if (err != -EPERM && err != -ENODEV)
- bt_dev_err(hdev, "urb %p submission failed (%d)",
- urb, -err);
- usb_unanchor_urb(urb);
- }
- usb_free_urb(urb);
- return err;
- }
- static int btusb_mtk_hci_wmt_sync(struct hci_dev *hdev,
- struct btmtk_hci_wmt_params *wmt_params)
- {
- struct btusb_data *data = hci_get_drvdata(hdev);
- struct btmtk_hci_wmt_evt_funcc *wmt_evt_funcc;
- u32 hlen, status = BTMTK_WMT_INVALID;
- struct btmtk_hci_wmt_evt *wmt_evt;
- struct btmtk_hci_wmt_cmd wc;
- struct btmtk_wmt_hdr *hdr;
- int err;
- /* Send the WMT command and wait until the WMT event returns */
- hlen = sizeof(*hdr) + wmt_params->dlen;
- if (hlen > 255)
- return -EINVAL;
- 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;
- }
- /* Submit control IN URB on demand to process the WMT event */
- err = btusb_mtk_submit_wmt_recv_urb(hdev);
- if (err < 0)
- 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);
- goto err_release_fw;
- }
- fw_ptr = fw->data;
- fw_size = fw->size;
- /* The size of patch header is 30 bytes, should be skip */
- if (fw_size < 30) {
- err = -EINVAL;
- goto err_release_fw;
- }
- fw_size -= 30;
- fw_ptr += 30;
- flag = 1;
- wmt_params.op = BTMTK_WMT_PATCH_DWNLD;
- wmt_params.status = NULL;
- while (fw_size > 0) {
- dlen = min_t(int, 250, fw_size);
- /* Tell 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;
- }
- static int btusb_set_bdaddr_wcn6855(struct hci_dev *hdev,
- const bdaddr_t *bdaddr)
- {
- struct sk_buff *skb;
- u8 buf[6];
- long ret;
- memcpy(buf, bdaddr, sizeof(bdaddr_t));
- skb = __hci_cmd_sync_ev(hdev, 0xfc14, sizeof(buf), buf,
- HCI_EV_CMD_COMPLETE, 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_high;
- __le16 rom_version_low;
- __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, 8 }, /* Rome 1.0 */
- { 0x00000101, 20, 4, 8 }, /* Rome 1.1 */
- { 0x00000200, 28, 4, 16 }, /* Rome 2.0 */
- { 0x00000201, 28, 4, 16 }, /* Rome 2.1 */
- { 0x00000300, 28, 4, 16 }, /* Rome 3.0 */
- { 0x00000302, 28, 4, 16 }, /* Rome 3.2 */
- { 0x00130100, 40, 4, 16 }, /* WCN6855 1.0 */
- { 0x00130200, 40, 4, 16 }, /* WCN6855 2.0 */
- };
- 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;
- /* ep2 need time to switch from function acl to function dfu,
- * so we add 20ms delay here.
- */
- msleep(20);
- 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, rver_rom;
- u16 rver_rom_low, rver_rom_high, 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_low = le16_to_cpu(rver->rom_version_low);
- rver_patch = le16_to_cpu(rver->patch_version);
- if (ver_rom & ~0xffffU) {
- rver_rom_high = le16_to_cpu(rver->rom_version_high);
- rver_rom = le32_to_cpu(rver_rom_high << 16 | rver_rom_low);
- } else {
- rver_rom = rver_rom_low;
- }
- 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);
- 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) {
- /* If the rom_version is not matched in the qca_devices_table
- * and the high ROM version is not zero, we assume this chip no
- * need to load the rampatch and nvm.
- */
- if (ver_rom & ~0xffffU)
- return 0;
- 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_QCA_WCN6855) {
- data->setup_on_usb = btusb_setup_qca;
- hdev->set_bdaddr = btusb_set_bdaddr_wcn6855;
- hdev->cmd_timeout = btusb_qca_cmd_timeout;
- set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks);
- }
- 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);
- set_bit(BTUSB_USE_ALT3_FOR_WBS, &data->flags);
- }
- 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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