drivers/bluetooth/btusb.c

   1 // SPDX-License-Identifier: GPL-2.0-or-later
   2 /*
   3  *
   4  *  Generic Bluetooth USB driver
   5  *
   6  *  Copyright (C) 2005-2008  Marcel Holtmann <[email protected]>
   7  */
   8
   9 #include <linux/dmi.h>
  10 #include <linux/module.h>
  11 #include <linux/usb.h>
  12 #include <linux/usb/quirks.h>
  13 #include <linux/firmware.h>
  14 #include <linux/iopoll.h>
  15 #include <linux/of_device.h>
  16 #include <linux/of_irq.h>
  17 #include <linux/suspend.h>
  18 #include <linux/gpio/consumer.h>
  19 #include <linux/debugfs.h>
  20 #include <asm/unaligned.h>
  21
  22 #include <net/bluetooth/bluetooth.h>
  23 #include <net/bluetooth/hci_core.h>
  24
  25 #include "btintel.h"
  26 #include "btbcm.h"
  27 #include "btrtl.h"
  28 #include "btmtk.h"
  29
  30 #define VERSION "0.8"
  31
  32 static bool disable_scofix;
  33 static bool force_scofix;
  34 static bool enable_autosuspend = IS_ENABLED(CONFIG_BT_HCIBTUSB_AUTOSUSPEND);
  35 static bool enable_poll_sync = IS_ENABLED(CONFIG_BT_HCIBTUSB_POLL_SYNC);
  36 static bool reset = true;
  37
  38 static struct usb_driver btusb_driver;
  39
  40 #define BTUSB_IGNORE                    BIT(0)
  41 #define BTUSB_DIGIANSWER                BIT(1)
  42 #define BTUSB_CSR                       BIT(2)
  43 #define BTUSB_SNIFFER                   BIT(3)
  44 #define BTUSB_BCM92035                  BIT(4)
  45 #define BTUSB_BROKEN_ISOC               BIT(5)
  46 #define BTUSB_WRONG_SCO_MTU             BIT(6)
  47 #define BTUSB_ATH3012                   BIT(7)
  48 #define BTUSB_INTEL_COMBINED            BIT(8)
  49 #define BTUSB_INTEL_BOOT                BIT(9)
  50 #define BTUSB_BCM_PATCHRAM              BIT(10)
  51 #define BTUSB_MARVELL                   BIT(11)
  52 #define BTUSB_SWAVE                     BIT(12)
  53 #define BTUSB_AMP                       BIT(13)
  54 #define BTUSB_QCA_ROME                  BIT(14)
  55 #define BTUSB_BCM_APPLE                 BIT(15)
  56 #define BTUSB_REALTEK                   BIT(16)
  57 #define BTUSB_BCM2045                   BIT(17)
  58 #define BTUSB_IFNUM_2                   BIT(18)
  59 #define BTUSB_CW6622                    BIT(19)
  60 #define BTUSB_MEDIATEK                  BIT(20)
  61 #define BTUSB_WIDEBAND_SPEECH           BIT(21)
  62 #define BTUSB_INVALID_LE_STATES         BIT(22)
  63 #define BTUSB_QCA_WCN6855               BIT(23)
  64 #define BTUSB_INTEL_BROKEN_SHUTDOWN_LED BIT(24)
  65 #define BTUSB_INTEL_BROKEN_INITIAL_NCMD BIT(25)
  66 #define BTUSB_INTEL_NO_WBS_SUPPORT      BIT(26)
  67 #define BTUSB_ACTIONS_SEMI              BIT(27)
  68
  69 static const struct usb_device_id btusb_table[] = {
  70         /* Generic Bluetooth USB device */
  71         { USB_DEVICE_INFO(0xe0, 0x01, 0x01) },
  72
  73         /* Generic Bluetooth AMP device */
  74         { USB_DEVICE_INFO(0xe0, 0x01, 0x04), .driver_info = BTUSB_AMP },
  75
  76         /* Generic Bluetooth USB interface */
  77         { USB_INTERFACE_INFO(0xe0, 0x01, 0x01) },
  78
  79         /* Apple-specific (Broadcom) devices */
  80         { USB_VENDOR_AND_INTERFACE_INFO(0x05ac, 0xff, 0x01, 0x01),
  81           .driver_info = BTUSB_BCM_APPLE | BTUSB_IFNUM_2 },
  82
  83         /* MediaTek MT76x0E */
  84         { USB_DEVICE(0x0e8d, 0x763f) },
  85
  86         /* Broadcom SoftSailing reporting vendor specific */
  87         { USB_DEVICE(0x0a5c, 0x21e1) },
  88
  89         /* Apple MacBookPro 7,1 */
  90         { USB_DEVICE(0x05ac, 0x8213) },
  91
  92         /* Apple iMac11,1 */
  93         { USB_DEVICE(0x05ac, 0x8215) },
  94
  95         /* Apple MacBookPro6,2 */
  96         { USB_DEVICE(0x05ac, 0x8218) },
  97
  98         /* Apple MacBookAir3,1, MacBookAir3,2 */
  99         { USB_DEVICE(0x05ac, 0x821b) },
 100
 101         /* Apple MacBookAir4,1 */
 102         { USB_DEVICE(0x05ac, 0x821f) },
 103
 104         /* Apple MacBookPro8,2 */
 105         { USB_DEVICE(0x05ac, 0x821a) },
 106
 107         /* Apple MacMini5,1 */
 108         { USB_DEVICE(0x05ac, 0x8281) },
 109
 110         /* AVM BlueFRITZ! USB v2.0 */
 111         { USB_DEVICE(0x057c, 0x3800), .driver_info = BTUSB_SWAVE },
 112
 113         /* Bluetooth Ultraport Module from IBM */
 114         { USB_DEVICE(0x04bf, 0x030a) },
 115
 116         /* ALPS Modules with non-standard id */
 117         { USB_DEVICE(0x044e, 0x3001) },
 118         { USB_DEVICE(0x044e, 0x3002) },
 119
 120         /* Ericsson with non-standard id */
 121         { USB_DEVICE(0x0bdb, 0x1002) },
 122
 123         /* Canyon CN-BTU1 with HID interfaces */
 124         { USB_DEVICE(0x0c10, 0x0000) },
 125
 126         /* Broadcom BCM20702B0 (Dynex/Insignia) */
 127         { USB_DEVICE(0x19ff, 0x0239), .driver_info = BTUSB_BCM_PATCHRAM },
 128
 129         /* Broadcom BCM43142A0 (Foxconn/Lenovo) */
 130         { USB_VENDOR_AND_INTERFACE_INFO(0x105b, 0xff, 0x01, 0x01),
 131           .driver_info = BTUSB_BCM_PATCHRAM },
 132
 133         /* Broadcom BCM920703 (HTC Vive) */
 134         { USB_VENDOR_AND_INTERFACE_INFO(0x0bb4, 0xff, 0x01, 0x01),
 135           .driver_info = BTUSB_BCM_PATCHRAM },
 136
 137         /* Foxconn - Hon Hai */
 138         { USB_VENDOR_AND_INTERFACE_INFO(0x0489, 0xff, 0x01, 0x01),
 139           .driver_info = BTUSB_BCM_PATCHRAM },
 140
 141         /* Lite-On Technology - Broadcom based */
 142         { USB_VENDOR_AND_INTERFACE_INFO(0x04ca, 0xff, 0x01, 0x01),
 143           .driver_info = BTUSB_BCM_PATCHRAM },
 144
 145         /* Broadcom devices with vendor specific id */
 146         { USB_VENDOR_AND_INTERFACE_INFO(0x0a5c, 0xff, 0x01, 0x01),
 147           .driver_info = BTUSB_BCM_PATCHRAM },
 148
 149         /* ASUSTek Computer - Broadcom based */
 150         { USB_VENDOR_AND_INTERFACE_INFO(0x0b05, 0xff, 0x01, 0x01),
 151           .driver_info = BTUSB_BCM_PATCHRAM },
 152
 153         /* Belkin F8065bf - Broadcom based */
 154         { USB_VENDOR_AND_INTERFACE_INFO(0x050d, 0xff, 0x01, 0x01),
 155           .driver_info = BTUSB_BCM_PATCHRAM },
 156
 157         /* IMC Networks - Broadcom based */
 158         { USB_VENDOR_AND_INTERFACE_INFO(0x13d3, 0xff, 0x01, 0x01),
 159           .driver_info = BTUSB_BCM_PATCHRAM },
 160
 161         /* Dell Computer - Broadcom based  */
 162         { USB_VENDOR_AND_INTERFACE_INFO(0x413c, 0xff, 0x01, 0x01),
 163           .driver_info = BTUSB_BCM_PATCHRAM },
 164
 165         /* Toshiba Corp - Broadcom based */
 166         { USB_VENDOR_AND_INTERFACE_INFO(0x0930, 0xff, 0x01, 0x01),
 167           .driver_info = BTUSB_BCM_PATCHRAM },
 168
 169         /* Intel Bluetooth USB Bootloader (RAM module) */
 170         { USB_DEVICE(0x8087, 0x0a5a),
 171           .driver_info = BTUSB_INTEL_BOOT | BTUSB_BROKEN_ISOC },
 172
 173         { }     /* Terminating entry */
 174 };
 175
 176 MODULE_DEVICE_TABLE(usb, btusb_table);
 177
 178 static const struct usb_device_id quirks_table[] = {
 179         /* CSR BlueCore devices */
 180         { USB_DEVICE(0x0a12, 0x0001), .driver_info = BTUSB_CSR },
 181
 182         /* Broadcom BCM2033 without firmware */
 183         { USB_DEVICE(0x0a5c, 0x2033), .driver_info = BTUSB_IGNORE },
 184
 185         /* Broadcom BCM2045 devices */
 186         { USB_DEVICE(0x0a5c, 0x2045), .driver_info = BTUSB_BCM2045 },
 187
 188         /* Atheros 3011 with sflash firmware */
 189         { USB_DEVICE(0x0489, 0xe027), .driver_info = BTUSB_IGNORE },
 190         { USB_DEVICE(0x0489, 0xe03d), .driver_info = BTUSB_IGNORE },
 191         { USB_DEVICE(0x04f2, 0xaff1), .driver_info = BTUSB_IGNORE },
 192         { USB_DEVICE(0x0930, 0x0215), .driver_info = BTUSB_IGNORE },
 193         { USB_DEVICE(0x0cf3, 0x3002), .driver_info = BTUSB_IGNORE },
 194         { USB_DEVICE(0x0cf3, 0xe019), .driver_info = BTUSB_IGNORE },
 195         { USB_DEVICE(0x13d3, 0x3304), .driver_info = BTUSB_IGNORE },
 196
 197         /* Atheros AR9285 Malbec with sflash firmware */
 198         { USB_DEVICE(0x03f0, 0x311d), .driver_info = BTUSB_IGNORE },
 199
 200         /* Atheros 3012 with sflash firmware */
 201         { USB_DEVICE(0x0489, 0xe04d), .driver_info = BTUSB_ATH3012 },
 202         { USB_DEVICE(0x0489, 0xe04e), .driver_info = BTUSB_ATH3012 },
 203         { USB_DEVICE(0x0489, 0xe056), .driver_info = BTUSB_ATH3012 },
 204         { USB_DEVICE(0x0489, 0xe057), .driver_info = BTUSB_ATH3012 },
 205         { USB_DEVICE(0x0489, 0xe05f), .driver_info = BTUSB_ATH3012 },
 206         { USB_DEVICE(0x0489, 0xe076), .driver_info = BTUSB_ATH3012 },
 207         { USB_DEVICE(0x0489, 0xe078), .driver_info = BTUSB_ATH3012 },
 208         { USB_DEVICE(0x0489, 0xe095), .driver_info = BTUSB_ATH3012 },
 209         { USB_DEVICE(0x04c5, 0x1330), .driver_info = BTUSB_ATH3012 },
 210         { USB_DEVICE(0x04ca, 0x3004), .driver_info = BTUSB_ATH3012 },
 211         { USB_DEVICE(0x04ca, 0x3005), .driver_info = BTUSB_ATH3012 },
 212         { USB_DEVICE(0x04ca, 0x3006), .driver_info = BTUSB_ATH3012 },
 213         { USB_DEVICE(0x04ca, 0x3007), .driver_info = BTUSB_ATH3012 },
 214         { USB_DEVICE(0x04ca, 0x3008), .driver_info = BTUSB_ATH3012 },
 215         { USB_DEVICE(0x04ca, 0x300b), .driver_info = BTUSB_ATH3012 },
 216         { USB_DEVICE(0x04ca, 0x300d), .driver_info = BTUSB_ATH3012 },
 217         { USB_DEVICE(0x04ca, 0x300f), .driver_info = BTUSB_ATH3012 },
 218         { USB_DEVICE(0x04ca, 0x3010), .driver_info = BTUSB_ATH3012 },
 219         { USB_DEVICE(0x04ca, 0x3014), .driver_info = BTUSB_ATH3012 },
 220         { USB_DEVICE(0x04ca, 0x3018), .driver_info = BTUSB_ATH3012 },
 221         { USB_DEVICE(0x0930, 0x0219), .driver_info = BTUSB_ATH3012 },
 222         { USB_DEVICE(0x0930, 0x021c), .driver_info = BTUSB_ATH3012 },
 223         { USB_DEVICE(0x0930, 0x0220), .driver_info = BTUSB_ATH3012 },
 224         { USB_DEVICE(0x0930, 0x0227), .driver_info = BTUSB_ATH3012 },
 225         { USB_DEVICE(0x0b05, 0x17d0), .driver_info = BTUSB_ATH3012 },
 226         { USB_DEVICE(0x0cf3, 0x0036), .driver_info = BTUSB_ATH3012 },
 227         { USB_DEVICE(0x0cf3, 0x3004), .driver_info = BTUSB_ATH3012 },
 228         { USB_DEVICE(0x0cf3, 0x3008), .driver_info = BTUSB_ATH3012 },
 229         { USB_DEVICE(0x0cf3, 0x311d), .driver_info = BTUSB_ATH3012 },
 230         { USB_DEVICE(0x0cf3, 0x311e), .driver_info = BTUSB_ATH3012 },
 231         { USB_DEVICE(0x0cf3, 0x311f), .driver_info = BTUSB_ATH3012 },
 232         { USB_DEVICE(0x0cf3, 0x3121), .driver_info = BTUSB_ATH3012 },
 233         { USB_DEVICE(0x0cf3, 0x817a), .driver_info = BTUSB_ATH3012 },
 234         { USB_DEVICE(0x0cf3, 0x817b), .driver_info = BTUSB_ATH3012 },
 235         { USB_DEVICE(0x0cf3, 0xe003), .driver_info = BTUSB_ATH3012 },
 236         { USB_DEVICE(0x0cf3, 0xe004), .driver_info = BTUSB_ATH3012 },
 237         { USB_DEVICE(0x0cf3, 0xe005), .driver_info = BTUSB_ATH3012 },
 238         { USB_DEVICE(0x0cf3, 0xe006), .driver_info = BTUSB_ATH3012 },
 239         { USB_DEVICE(0x13d3, 0x3362), .driver_info = BTUSB_ATH3012 },
 240         { USB_DEVICE(0x13d3, 0x3375), .driver_info = BTUSB_ATH3012 },
 241         { USB_DEVICE(0x13d3, 0x3393), .driver_info = BTUSB_ATH3012 },
 242         { USB_DEVICE(0x13d3, 0x3395), .driver_info = BTUSB_ATH3012 },
 243         { USB_DEVICE(0x13d3, 0x3402), .driver_info = BTUSB_ATH3012 },
 244         { USB_DEVICE(0x13d3, 0x3408), .driver_info = BTUSB_ATH3012 },
 245         { USB_DEVICE(0x13d3, 0x3423), .driver_info = BTUSB_ATH3012 },
 246         { USB_DEVICE(0x13d3, 0x3432), .driver_info = BTUSB_ATH3012 },
 247         { USB_DEVICE(0x13d3, 0x3472), .driver_info = BTUSB_ATH3012 },
 248         { USB_DEVICE(0x13d3, 0x3474), .driver_info = BTUSB_ATH3012 },
 249         { USB_DEVICE(0x13d3, 0x3487), .driver_info = BTUSB_ATH3012 },
 250         { USB_DEVICE(0x13d3, 0x3490), .driver_info = BTUSB_ATH3012 },
 251
 252         /* Atheros AR5BBU12 with sflash firmware */
 253         { USB_DEVICE(0x0489, 0xe02c), .driver_info = BTUSB_IGNORE },
 254
 255         /* Atheros AR5BBU12 with sflash firmware */
 256         { USB_DEVICE(0x0489, 0xe036), .driver_info = BTUSB_ATH3012 },
 257         { USB_DEVICE(0x0489, 0xe03c), .driver_info = BTUSB_ATH3012 },
 258
 259         /* QCA ROME chipset */
 260         { USB_DEVICE(0x0cf3, 0x535b), .driver_info = BTUSB_QCA_ROME |
 261                                                      BTUSB_WIDEBAND_SPEECH },
 262         { USB_DEVICE(0x0cf3, 0xe007), .driver_info = BTUSB_QCA_ROME |
 263                                                      BTUSB_WIDEBAND_SPEECH },
 264         { USB_DEVICE(0x0cf3, 0xe009), .driver_info = BTUSB_QCA_ROME |
 265                                                      BTUSB_WIDEBAND_SPEECH },
 266         { USB_DEVICE(0x0cf3, 0xe010), .driver_info = BTUSB_QCA_ROME |
 267                                                      BTUSB_WIDEBAND_SPEECH },
 268         { USB_DEVICE(0x0cf3, 0xe300), .driver_info = BTUSB_QCA_ROME |
 269                                                      BTUSB_WIDEBAND_SPEECH },
 270         { USB_DEVICE(0x0cf3, 0xe301), .driver_info = BTUSB_QCA_ROME |
 271                                                      BTUSB_WIDEBAND_SPEECH },
 272         { USB_DEVICE(0x0cf3, 0xe360), .driver_info = BTUSB_QCA_ROME |
 273                                                      BTUSB_WIDEBAND_SPEECH },
 274         { USB_DEVICE(0x0cf3, 0xe500), .driver_info = BTUSB_QCA_ROME |
 275                                                      BTUSB_WIDEBAND_SPEECH },
 276         { USB_DEVICE(0x0489, 0xe092), .driver_info = BTUSB_QCA_ROME |
 277                                                      BTUSB_WIDEBAND_SPEECH },
 278         { USB_DEVICE(0x0489, 0xe09f), .driver_info = BTUSB_QCA_ROME |
 279                                                      BTUSB_WIDEBAND_SPEECH },
 280         { USB_DEVICE(0x0489, 0xe0a2), .driver_info = BTUSB_QCA_ROME |
 281                                                      BTUSB_WIDEBAND_SPEECH },
 282         { USB_DEVICE(0x04ca, 0x3011), .driver_info = BTUSB_QCA_ROME |
 283                                                      BTUSB_WIDEBAND_SPEECH },
 284         { USB_DEVICE(0x04ca, 0x3015), .driver_info = BTUSB_QCA_ROME |
 285                                                      BTUSB_WIDEBAND_SPEECH },
 286         { USB_DEVICE(0x04ca, 0x3016), .driver_info = BTUSB_QCA_ROME |
 287                                                      BTUSB_WIDEBAND_SPEECH },
 288         { USB_DEVICE(0x04ca, 0x301a), .driver_info = BTUSB_QCA_ROME |
 289                                                      BTUSB_WIDEBAND_SPEECH },
 290         { USB_DEVICE(0x04ca, 0x3021), .driver_info = BTUSB_QCA_ROME |
 291                                                      BTUSB_WIDEBAND_SPEECH },
 292         { USB_DEVICE(0x13d3, 0x3491), .driver_info = BTUSB_QCA_ROME |
 293                                                      BTUSB_WIDEBAND_SPEECH },
 294         { USB_DEVICE(0x13d3, 0x3496), .driver_info = BTUSB_QCA_ROME |
 295                                                      BTUSB_WIDEBAND_SPEECH },
 296         { USB_DEVICE(0x13d3, 0x3501), .driver_info = BTUSB_QCA_ROME |
 297                                                      BTUSB_WIDEBAND_SPEECH },
 298
 299         /* QCA WCN6855 chipset */
 300         { USB_DEVICE(0x0cf3, 0xe600), .driver_info = BTUSB_QCA_WCN6855 |
 301                                                      BTUSB_WIDEBAND_SPEECH },
 302         { USB_DEVICE(0x0489, 0xe0cc), .driver_info = BTUSB_QCA_WCN6855 |
 303                                                      BTUSB_WIDEBAND_SPEECH },
 304         { USB_DEVICE(0x0489, 0xe0d6), .driver_info = BTUSB_QCA_WCN6855 |
 305                                                      BTUSB_WIDEBAND_SPEECH },
 306         { USB_DEVICE(0x0489, 0xe0e3), .driver_info = BTUSB_QCA_WCN6855 |
 307                                                      BTUSB_WIDEBAND_SPEECH },
 308         { USB_DEVICE(0x10ab, 0x9309), .driver_info = BTUSB_QCA_WCN6855 |
 309                                                      BTUSB_WIDEBAND_SPEECH },
 310         { USB_DEVICE(0x10ab, 0x9409), .driver_info = BTUSB_QCA_WCN6855 |
 311                                                      BTUSB_WIDEBAND_SPEECH },
 312         { USB_DEVICE(0x0489, 0xe0d0), .driver_info = BTUSB_QCA_WCN6855 |
 313                                                      BTUSB_WIDEBAND_SPEECH },
 314         { USB_DEVICE(0x10ab, 0x9108), .driver_info = BTUSB_QCA_WCN6855 |
 315                                                      BTUSB_WIDEBAND_SPEECH },
 316         { USB_DEVICE(0x10ab, 0x9109), .driver_info = BTUSB_QCA_WCN6855 |
 317                                                      BTUSB_WIDEBAND_SPEECH },
 318         { USB_DEVICE(0x10ab, 0x9208), .driver_info = BTUSB_QCA_WCN6855 |
 319                                                      BTUSB_WIDEBAND_SPEECH },
 320         { USB_DEVICE(0x10ab, 0x9209), .driver_info = BTUSB_QCA_WCN6855 |
 321                                                      BTUSB_WIDEBAND_SPEECH },
 322         { USB_DEVICE(0x10ab, 0x9308), .driver_info = BTUSB_QCA_WCN6855 |
 323                                                      BTUSB_WIDEBAND_SPEECH },
 324         { USB_DEVICE(0x10ab, 0x9408), .driver_info = BTUSB_QCA_WCN6855 |
 325                                                      BTUSB_WIDEBAND_SPEECH },
 326         { USB_DEVICE(0x10ab, 0x9508), .driver_info = BTUSB_QCA_WCN6855 |
 327                                                      BTUSB_WIDEBAND_SPEECH },
 328         { USB_DEVICE(0x10ab, 0x9509), .driver_info = BTUSB_QCA_WCN6855 |
 329                                                      BTUSB_WIDEBAND_SPEECH },
 330         { USB_DEVICE(0x10ab, 0x9608), .driver_info = BTUSB_QCA_WCN6855 |
 331                                                      BTUSB_WIDEBAND_SPEECH },
 332         { USB_DEVICE(0x10ab, 0x9609), .driver_info = BTUSB_QCA_WCN6855 |
 333                                                      BTUSB_WIDEBAND_SPEECH },
 334         { USB_DEVICE(0x10ab, 0x9f09), .driver_info = BTUSB_QCA_WCN6855 |
 335                                                      BTUSB_WIDEBAND_SPEECH },
 336         { USB_DEVICE(0x04ca, 0x3022), .driver_info = BTUSB_QCA_WCN6855 |
 337                                                      BTUSB_WIDEBAND_SPEECH },
 338         { USB_DEVICE(0x0489, 0xe0c7), .driver_info = BTUSB_QCA_WCN6855 |
 339                                                      BTUSB_WIDEBAND_SPEECH },
 340         { USB_DEVICE(0x0489, 0xe0c9), .driver_info = BTUSB_QCA_WCN6855 |
 341                                                      BTUSB_WIDEBAND_SPEECH },
 342         { USB_DEVICE(0x0489, 0xe0ca), .driver_info = BTUSB_QCA_WCN6855 |
 343                                                      BTUSB_WIDEBAND_SPEECH },
 344         { USB_DEVICE(0x0489, 0xe0cb), .driver_info = BTUSB_QCA_WCN6855 |
 345                                                      BTUSB_WIDEBAND_SPEECH },
 346         { USB_DEVICE(0x0489, 0xe0ce), .driver_info = BTUSB_QCA_WCN6855 |
 347                                                      BTUSB_WIDEBAND_SPEECH },
 348         { USB_DEVICE(0x0489, 0xe0de), .driver_info = BTUSB_QCA_WCN6855 |
 349                                                      BTUSB_WIDEBAND_SPEECH },
 350         { USB_DEVICE(0x0489, 0xe0df), .driver_info = BTUSB_QCA_WCN6855 |
 351                                                      BTUSB_WIDEBAND_SPEECH },
 352         { USB_DEVICE(0x0489, 0xe0e1), .driver_info = BTUSB_QCA_WCN6855 |
 353                                                      BTUSB_WIDEBAND_SPEECH },
 354         { USB_DEVICE(0x0489, 0xe0ea), .driver_info = BTUSB_QCA_WCN6855 |
 355                                                      BTUSB_WIDEBAND_SPEECH },
 356         { USB_DEVICE(0x0489, 0xe0ec), .driver_info = BTUSB_QCA_WCN6855 |
 357                                                      BTUSB_WIDEBAND_SPEECH },
 358         { USB_DEVICE(0x04ca, 0x3023), .driver_info = BTUSB_QCA_WCN6855 |
 359                                                      BTUSB_WIDEBAND_SPEECH },
 360         { USB_DEVICE(0x04ca, 0x3024), .driver_info = BTUSB_QCA_WCN6855 |
 361                                                      BTUSB_WIDEBAND_SPEECH },
 362         { USB_DEVICE(0x04ca, 0x3a22), .driver_info = BTUSB_QCA_WCN6855 |
 363                                                      BTUSB_WIDEBAND_SPEECH },
 364         { USB_DEVICE(0x04ca, 0x3a24), .driver_info = BTUSB_QCA_WCN6855 |
 365                                                      BTUSB_WIDEBAND_SPEECH },
 366         { USB_DEVICE(0x04ca, 0x3a26), .driver_info = BTUSB_QCA_WCN6855 |
 367                                                      BTUSB_WIDEBAND_SPEECH },
 368         { USB_DEVICE(0x04ca, 0x3a27), .driver_info = BTUSB_QCA_WCN6855 |
 369                                                      BTUSB_WIDEBAND_SPEECH },
 370
 371         /* QCA WCN785x chipset */
 372         { USB_DEVICE(0x0cf3, 0xe700), .driver_info = BTUSB_QCA_WCN6855 |
 373                                                      BTUSB_WIDEBAND_SPEECH },
 374
 375         /* Broadcom BCM2035 */
 376         { USB_DEVICE(0x0a5c, 0x2009), .driver_info = BTUSB_BCM92035 },
 377         { USB_DEVICE(0x0a5c, 0x200a), .driver_info = BTUSB_WRONG_SCO_MTU },
 378         { USB_DEVICE(0x0a5c, 0x2035), .driver_info = BTUSB_WRONG_SCO_MTU },
 379
 380         /* Broadcom BCM2045 */
 381         { USB_DEVICE(0x0a5c, 0x2039), .driver_info = BTUSB_WRONG_SCO_MTU },
 382         { USB_DEVICE(0x0a5c, 0x2101), .driver_info = BTUSB_WRONG_SCO_MTU },
 383
 384         /* IBM/Lenovo ThinkPad with Broadcom chip */
 385         { USB_DEVICE(0x0a5c, 0x201e), .driver_info = BTUSB_WRONG_SCO_MTU },
 386         { USB_DEVICE(0x0a5c, 0x2110), .driver_info = BTUSB_WRONG_SCO_MTU },
 387
 388         /* HP laptop with Broadcom chip */
 389         { USB_DEVICE(0x03f0, 0x171d), .driver_info = BTUSB_WRONG_SCO_MTU },
 390
 391         /* Dell laptop with Broadcom chip */
 392         { USB_DEVICE(0x413c, 0x8126), .driver_info = BTUSB_WRONG_SCO_MTU },
 393
 394         /* Dell Wireless 370 and 410 devices */
 395         { USB_DEVICE(0x413c, 0x8152), .driver_info = BTUSB_WRONG_SCO_MTU },
 396         { USB_DEVICE(0x413c, 0x8156), .driver_info = BTUSB_WRONG_SCO_MTU },
 397
 398         /* Belkin F8T012 and F8T013 devices */
 399         { USB_DEVICE(0x050d, 0x0012), .driver_info = BTUSB_WRONG_SCO_MTU },
 400         { USB_DEVICE(0x050d, 0x0013), .driver_info = BTUSB_WRONG_SCO_MTU },
 401
 402         /* Asus WL-BTD202 device */
 403         { USB_DEVICE(0x0b05, 0x1715), .driver_info = BTUSB_WRONG_SCO_MTU },
 404
 405         /* Kensington Bluetooth USB adapter */
 406         { USB_DEVICE(0x047d, 0x105e), .driver_info = BTUSB_WRONG_SCO_MTU },
 407
 408         /* RTX Telecom based adapters with buggy SCO support */
 409         { USB_DEVICE(0x0400, 0x0807), .driver_info = BTUSB_BROKEN_ISOC },
 410         { USB_DEVICE(0x0400, 0x080a), .driver_info = BTUSB_BROKEN_ISOC },
 411
 412         /* CONWISE Technology based adapters with buggy SCO support */
 413         { USB_DEVICE(0x0e5e, 0x6622),
 414           .driver_info = BTUSB_BROKEN_ISOC | BTUSB_CW6622},
 415
 416         /* Roper Class 1 Bluetooth Dongle (Silicon Wave based) */
 417         { USB_DEVICE(0x1310, 0x0001), .driver_info = BTUSB_SWAVE },
 418
 419         /* Digianswer devices */
 420         { USB_DEVICE(0x08fd, 0x0001), .driver_info = BTUSB_DIGIANSWER },
 421         { USB_DEVICE(0x08fd, 0x0002), .driver_info = BTUSB_IGNORE },
 422
 423         /* CSR BlueCore Bluetooth Sniffer */
 424         { USB_DEVICE(0x0a12, 0x0002),
 425           .driver_info = BTUSB_SNIFFER | BTUSB_BROKEN_ISOC },
 426
 427         /* Frontline ComProbe Bluetooth Sniffer */
 428         { USB_DEVICE(0x16d3, 0x0002),
 429           .driver_info = BTUSB_SNIFFER | BTUSB_BROKEN_ISOC },
 430
 431         /* Marvell Bluetooth devices */
 432         { USB_DEVICE(0x1286, 0x2044), .driver_info = BTUSB_MARVELL },
 433         { USB_DEVICE(0x1286, 0x2046), .driver_info = BTUSB_MARVELL },
 434         { USB_DEVICE(0x1286, 0x204e), .driver_info = BTUSB_MARVELL },
 435
 436         /* Intel Bluetooth devices */
 437         { USB_DEVICE(0x8087, 0x0025), .driver_info = BTUSB_INTEL_COMBINED },
 438         { USB_DEVICE(0x8087, 0x0026), .driver_info = BTUSB_INTEL_COMBINED },
 439         { USB_DEVICE(0x8087, 0x0029), .driver_info = BTUSB_INTEL_COMBINED },
 440         { USB_DEVICE(0x8087, 0x0032), .driver_info = BTUSB_INTEL_COMBINED },
 441         { USB_DEVICE(0x8087, 0x0033), .driver_info = BTUSB_INTEL_COMBINED },
 442         { USB_DEVICE(0x8087, 0x0035), .driver_info = BTUSB_INTEL_COMBINED },
 443         { USB_DEVICE(0x8087, 0x0036), .driver_info = BTUSB_INTEL_COMBINED },
 444         { USB_DEVICE(0x8087, 0x0037), .driver_info = BTUSB_INTEL_COMBINED },
 445         { USB_DEVICE(0x8087, 0x0038), .driver_info = BTUSB_INTEL_COMBINED },
 446         { USB_DEVICE(0x8087, 0x0039), .driver_info = BTUSB_INTEL_COMBINED },
 447         { USB_DEVICE(0x8087, 0x07da), .driver_info = BTUSB_CSR },
 448         { USB_DEVICE(0x8087, 0x07dc), .driver_info = BTUSB_INTEL_COMBINED |
 449                                                      BTUSB_INTEL_NO_WBS_SUPPORT |
 450                                                      BTUSB_INTEL_BROKEN_INITIAL_NCMD |
 451                                                      BTUSB_INTEL_BROKEN_SHUTDOWN_LED },
 452         { USB_DEVICE(0x8087, 0x0a2a), .driver_info = BTUSB_INTEL_COMBINED |
 453                                                      BTUSB_INTEL_NO_WBS_SUPPORT |
 454                                                      BTUSB_INTEL_BROKEN_SHUTDOWN_LED },
 455         { USB_DEVICE(0x8087, 0x0a2b), .driver_info = BTUSB_INTEL_COMBINED },
 456         { USB_DEVICE(0x8087, 0x0aa7), .driver_info = BTUSB_INTEL_COMBINED |
 457                                                      BTUSB_INTEL_BROKEN_SHUTDOWN_LED },
 458         { USB_DEVICE(0x8087, 0x0aaa), .driver_info = BTUSB_INTEL_COMBINED },
 459
 460         /* Other Intel Bluetooth devices */
 461         { USB_VENDOR_AND_INTERFACE_INFO(0x8087, 0xe0, 0x01, 0x01),
 462           .driver_info = BTUSB_IGNORE },
 463
 464         /* Realtek 8821CE Bluetooth devices */
 465         { USB_DEVICE(0x13d3, 0x3529), .driver_info = BTUSB_REALTEK |
 466                                                      BTUSB_WIDEBAND_SPEECH },
 467
 468         /* Realtek 8822CE Bluetooth devices */
 469         { USB_DEVICE(0x0bda, 0xb00c), .driver_info = BTUSB_REALTEK |
 470                                                      BTUSB_WIDEBAND_SPEECH },
 471         { USB_DEVICE(0x0bda, 0xc822), .driver_info = BTUSB_REALTEK |
 472                                                      BTUSB_WIDEBAND_SPEECH },
 473
 474         /* Realtek 8822CU Bluetooth devices */
 475         { USB_DEVICE(0x13d3, 0x3549), .driver_info = BTUSB_REALTEK |
 476                                                      BTUSB_WIDEBAND_SPEECH },
 477
 478         /* Realtek 8852AE Bluetooth devices */
 479         { USB_DEVICE(0x0bda, 0x2852), .driver_info = BTUSB_REALTEK |
 480                                                      BTUSB_WIDEBAND_SPEECH },
 481         { USB_DEVICE(0x0bda, 0xc852), .driver_info = BTUSB_REALTEK |
 482                                                      BTUSB_WIDEBAND_SPEECH },
 483         { USB_DEVICE(0x0bda, 0x385a), .driver_info = BTUSB_REALTEK |
 484                                                      BTUSB_WIDEBAND_SPEECH },
 485         { USB_DEVICE(0x0bda, 0x4852), .driver_info = BTUSB_REALTEK |
 486                                                      BTUSB_WIDEBAND_SPEECH },
 487         { USB_DEVICE(0x04c5, 0x165c), .driver_info = BTUSB_REALTEK |
 488                                                      BTUSB_WIDEBAND_SPEECH },
 489         { USB_DEVICE(0x04ca, 0x4006), .driver_info = BTUSB_REALTEK |
 490                                                      BTUSB_WIDEBAND_SPEECH },
 491         { USB_DEVICE(0x0cb8, 0xc549), .driver_info = BTUSB_REALTEK |
 492                                                      BTUSB_WIDEBAND_SPEECH },
 493
 494         /* Realtek 8852CE Bluetooth devices */
 495         { USB_DEVICE(0x04ca, 0x4007), .driver_info = BTUSB_REALTEK |
 496                                                      BTUSB_WIDEBAND_SPEECH },
 497         { USB_DEVICE(0x04c5, 0x1675), .driver_info = BTUSB_REALTEK |
 498                                                      BTUSB_WIDEBAND_SPEECH },
 499         { USB_DEVICE(0x0cb8, 0xc558), .driver_info = BTUSB_REALTEK |
 500                                                      BTUSB_WIDEBAND_SPEECH },
 501         { USB_DEVICE(0x13d3, 0x3587), .driver_info = BTUSB_REALTEK |
 502                                                      BTUSB_WIDEBAND_SPEECH },
 503         { USB_DEVICE(0x13d3, 0x3586), .driver_info = BTUSB_REALTEK |
 504                                                      BTUSB_WIDEBAND_SPEECH },
 505         { USB_DEVICE(0x13d3, 0x3592), .driver_info = BTUSB_REALTEK |
 506                                                      BTUSB_WIDEBAND_SPEECH },
 507         { USB_DEVICE(0x0489, 0xe122), .driver_info = BTUSB_REALTEK |
 508                                                      BTUSB_WIDEBAND_SPEECH },
 509
 510         /* Realtek 8852BE Bluetooth devices */
 511         { USB_DEVICE(0x0cb8, 0xc559), .driver_info = BTUSB_REALTEK |
 512                                                      BTUSB_WIDEBAND_SPEECH },
 513         { USB_DEVICE(0x0bda, 0x4853), .driver_info = BTUSB_REALTEK |
 514                                                      BTUSB_WIDEBAND_SPEECH },
 515         { USB_DEVICE(0x0bda, 0x887b), .driver_info = BTUSB_REALTEK |
 516                                                      BTUSB_WIDEBAND_SPEECH },
 517         { USB_DEVICE(0x0bda, 0xb85b), .driver_info = BTUSB_REALTEK |
 518                                                      BTUSB_WIDEBAND_SPEECH },
 519         { USB_DEVICE(0x13d3, 0x3570), .driver_info = BTUSB_REALTEK |
 520                                                      BTUSB_WIDEBAND_SPEECH },
 521         { USB_DEVICE(0x13d3, 0x3571), .driver_info = BTUSB_REALTEK |
 522                                                      BTUSB_WIDEBAND_SPEECH },
 523         { USB_DEVICE(0x13d3, 0x3572), .driver_info = BTUSB_REALTEK |
 524                                                      BTUSB_WIDEBAND_SPEECH },
 525         { USB_DEVICE(0x13d3, 0x3591), .driver_info = BTUSB_REALTEK |
 526                                                      BTUSB_WIDEBAND_SPEECH },
 527         { USB_DEVICE(0x0489, 0xe125), .driver_info = BTUSB_REALTEK |
 528                                                      BTUSB_WIDEBAND_SPEECH },
 529
 530         /* Realtek 8852BT/8852BE-VT Bluetooth devices */
 531         { USB_DEVICE(0x0bda, 0x8520), .driver_info = BTUSB_REALTEK |
 532                                                      BTUSB_WIDEBAND_SPEECH },
 533
 534         /* Realtek 8922AE Bluetooth devices */
 535         { USB_DEVICE(0x0bda, 0x8922), .driver_info = BTUSB_REALTEK |
 536                                                      BTUSB_WIDEBAND_SPEECH },
 537         { USB_DEVICE(0x13d3, 0x3617), .driver_info = BTUSB_REALTEK |
 538                                                      BTUSB_WIDEBAND_SPEECH },
 539         { USB_DEVICE(0x13d3, 0x3616), .driver_info = BTUSB_REALTEK |
 540                                                      BTUSB_WIDEBAND_SPEECH },
 541         { USB_DEVICE(0x0489, 0xe130), .driver_info = BTUSB_REALTEK |
 542                                                      BTUSB_WIDEBAND_SPEECH },
 543
 544         /* Realtek Bluetooth devices */
 545         { USB_VENDOR_AND_INTERFACE_INFO(0x0bda, 0xe0, 0x01, 0x01),
 546           .driver_info = BTUSB_REALTEK },
 547
 548         /* MediaTek Bluetooth devices */
 549         { USB_VENDOR_AND_INTERFACE_INFO(0x0e8d, 0xe0, 0x01, 0x01),
 550           .driver_info = BTUSB_MEDIATEK |
 551                          BTUSB_WIDEBAND_SPEECH },
 552
 553         /* Additional MediaTek MT7615E Bluetooth devices */
 554         { USB_DEVICE(0x13d3, 0x3560), .driver_info = BTUSB_MEDIATEK},
 555
 556         /* Additional MediaTek MT7663 Bluetooth devices */
 557         { USB_DEVICE(0x043e, 0x310c), .driver_info = BTUSB_MEDIATEK |
 558                                                      BTUSB_WIDEBAND_SPEECH },
 559         { USB_DEVICE(0x04ca, 0x3801), .driver_info = BTUSB_MEDIATEK |
 560                                                      BTUSB_WIDEBAND_SPEECH },
 561
 562         /* Additional MediaTek MT7668 Bluetooth devices */
 563         { USB_DEVICE(0x043e, 0x3109), .driver_info = BTUSB_MEDIATEK |
 564                                                      BTUSB_WIDEBAND_SPEECH },
 565
 566         /* Additional MediaTek MT7921 Bluetooth devices */
 567         { USB_DEVICE(0x0489, 0xe0c8), .driver_info = BTUSB_MEDIATEK |
 568                                                      BTUSB_WIDEBAND_SPEECH },
 569         { USB_DEVICE(0x0489, 0xe0cd), .driver_info = BTUSB_MEDIATEK |
 570                                                      BTUSB_WIDEBAND_SPEECH },
 571         { USB_DEVICE(0x0489, 0xe0e0), .driver_info = BTUSB_MEDIATEK |
 572                                                      BTUSB_WIDEBAND_SPEECH },
 573         { USB_DEVICE(0x0489, 0xe0f2), .driver_info = BTUSB_MEDIATEK |
 574                                                      BTUSB_WIDEBAND_SPEECH },
 575         { USB_DEVICE(0x04ca, 0x3802), .driver_info = BTUSB_MEDIATEK |
 576                                                      BTUSB_WIDEBAND_SPEECH },
 577         { USB_DEVICE(0x0e8d, 0x0608), .driver_info = BTUSB_MEDIATEK |
 578                                                      BTUSB_WIDEBAND_SPEECH },
 579         { USB_DEVICE(0x13d3, 0x3563), .driver_info = BTUSB_MEDIATEK |
 580                                                      BTUSB_WIDEBAND_SPEECH },
 581         { USB_DEVICE(0x13d3, 0x3564), .driver_info = BTUSB_MEDIATEK |
 582                                                      BTUSB_WIDEBAND_SPEECH },
 583         { USB_DEVICE(0x13d3, 0x3567), .driver_info = BTUSB_MEDIATEK |
 584                                                      BTUSB_WIDEBAND_SPEECH },
 585         { USB_DEVICE(0x13d3, 0x3578), .driver_info = BTUSB_MEDIATEK |
 586                                                      BTUSB_WIDEBAND_SPEECH },
 587         { USB_DEVICE(0x13d3, 0x3583), .driver_info = BTUSB_MEDIATEK |
 588                                                      BTUSB_WIDEBAND_SPEECH },
 589         { USB_DEVICE(0x13d3, 0x3606), .driver_info = BTUSB_MEDIATEK |
 590                                                      BTUSB_WIDEBAND_SPEECH },
 591
 592         /* MediaTek MT7922 Bluetooth devices */
 593         { USB_DEVICE(0x13d3, 0x3585), .driver_info = BTUSB_MEDIATEK |
 594                                                      BTUSB_WIDEBAND_SPEECH },
 595
 596         /* MediaTek MT7922A Bluetooth devices */
 597         { USB_DEVICE(0x0489, 0xe0d8), .driver_info = BTUSB_MEDIATEK |
 598                                                      BTUSB_WIDEBAND_SPEECH },
 599         { USB_DEVICE(0x0489, 0xe0d9), .driver_info = BTUSB_MEDIATEK |
 600                                                      BTUSB_WIDEBAND_SPEECH },
 601         { USB_DEVICE(0x0489, 0xe0e2), .driver_info = BTUSB_MEDIATEK |
 602                                                      BTUSB_WIDEBAND_SPEECH },
 603         { USB_DEVICE(0x0489, 0xe0e4), .driver_info = BTUSB_MEDIATEK |
 604                                                      BTUSB_WIDEBAND_SPEECH },
 605         { USB_DEVICE(0x0489, 0xe0f1), .driver_info = BTUSB_MEDIATEK |
 606                                                      BTUSB_WIDEBAND_SPEECH },
 607         { USB_DEVICE(0x0489, 0xe0f2), .driver_info = BTUSB_MEDIATEK |
 608                                                      BTUSB_WIDEBAND_SPEECH },
 609         { USB_DEVICE(0x0489, 0xe0f5), .driver_info = BTUSB_MEDIATEK |
 610                                                      BTUSB_WIDEBAND_SPEECH },
 611         { USB_DEVICE(0x0489, 0xe0f6), .driver_info = BTUSB_MEDIATEK |
 612                                                      BTUSB_WIDEBAND_SPEECH },
 613         { USB_DEVICE(0x0489, 0xe102), .driver_info = BTUSB_MEDIATEK |
 614                                                      BTUSB_WIDEBAND_SPEECH },
 615         { USB_DEVICE(0x04ca, 0x3804), .driver_info = BTUSB_MEDIATEK |
 616                                                      BTUSB_WIDEBAND_SPEECH },
 617         { USB_DEVICE(0x04ca, 0x38e4), .driver_info = BTUSB_MEDIATEK |
 618                                                      BTUSB_WIDEBAND_SPEECH },
 619         { USB_DEVICE(0x13d3, 0x3568), .driver_info = BTUSB_MEDIATEK |
 620                                                      BTUSB_WIDEBAND_SPEECH },
 621         { USB_DEVICE(0x13d3, 0x3605), .driver_info = BTUSB_MEDIATEK |
 622                                                      BTUSB_WIDEBAND_SPEECH },
 623         { USB_DEVICE(0x13d3, 0x3607), .driver_info = BTUSB_MEDIATEK |
 624                                                      BTUSB_WIDEBAND_SPEECH },
 625         { USB_DEVICE(0x13d3, 0x3614), .driver_info = BTUSB_MEDIATEK |
 626                                                      BTUSB_WIDEBAND_SPEECH },
 627         { USB_DEVICE(0x13d3, 0x3615), .driver_info = BTUSB_MEDIATEK |
 628                                                      BTUSB_WIDEBAND_SPEECH },
 629         { USB_DEVICE(0x35f5, 0x7922), .driver_info = BTUSB_MEDIATEK |
 630                                                      BTUSB_WIDEBAND_SPEECH },
 631
 632         /* Additional MediaTek MT7925 Bluetooth devices */
 633         { USB_DEVICE(0x0489, 0xe113), .driver_info = BTUSB_MEDIATEK |
 634                                                      BTUSB_WIDEBAND_SPEECH },
 635         { USB_DEVICE(0x0489, 0xe118), .driver_info = BTUSB_MEDIATEK |
 636                                                      BTUSB_WIDEBAND_SPEECH },
 637         { USB_DEVICE(0x0489, 0xe11e), .driver_info = BTUSB_MEDIATEK |
 638                                                      BTUSB_WIDEBAND_SPEECH },
 639         { USB_DEVICE(0x13d3, 0x3602), .driver_info = BTUSB_MEDIATEK |
 640                                                      BTUSB_WIDEBAND_SPEECH },
 641         { USB_DEVICE(0x13d3, 0x3603), .driver_info = BTUSB_MEDIATEK |
 642                                                      BTUSB_WIDEBAND_SPEECH },
 643         { USB_DEVICE(0x13d3, 0x3604), .driver_info = BTUSB_MEDIATEK |
 644                                                      BTUSB_WIDEBAND_SPEECH },
 645         { USB_DEVICE(0x13d3, 0x3608), .driver_info = BTUSB_MEDIATEK |
 646                                                      BTUSB_WIDEBAND_SPEECH },
 647
 648         /* Additional Realtek 8723AE Bluetooth devices */
 649         { USB_DEVICE(0x0930, 0x021d), .driver_info = BTUSB_REALTEK },
 650         { USB_DEVICE(0x13d3, 0x3394), .driver_info = BTUSB_REALTEK },
 651
 652         /* Additional Realtek 8723BE Bluetooth devices */
 653         { USB_DEVICE(0x0489, 0xe085), .driver_info = BTUSB_REALTEK },
 654         { USB_DEVICE(0x0489, 0xe08b), .driver_info = BTUSB_REALTEK },
 655         { USB_DEVICE(0x04f2, 0xb49f), .driver_info = BTUSB_REALTEK },
 656         { USB_DEVICE(0x13d3, 0x3410), .driver_info = BTUSB_REALTEK },
 657         { USB_DEVICE(0x13d3, 0x3416), .driver_info = BTUSB_REALTEK },
 658         { USB_DEVICE(0x13d3, 0x3459), .driver_info = BTUSB_REALTEK },
 659         { USB_DEVICE(0x13d3, 0x3494), .driver_info = BTUSB_REALTEK },
 660
 661         /* Additional Realtek 8723BU Bluetooth devices */
 662         { USB_DEVICE(0x7392, 0xa611), .driver_info = BTUSB_REALTEK },
 663
 664         /* Additional Realtek 8723DE Bluetooth devices */
 665         { USB_DEVICE(0x0bda, 0xb009), .driver_info = BTUSB_REALTEK },
 666         { USB_DEVICE(0x2ff8, 0xb011), .driver_info = BTUSB_REALTEK },
 667
 668         /* Additional Realtek 8761BUV Bluetooth devices */
 669         { USB_DEVICE(0x2357, 0x0604), .driver_info = BTUSB_REALTEK |
 670                                                      BTUSB_WIDEBAND_SPEECH },
 671         { USB_DEVICE(0x0b05, 0x190e), .driver_info = BTUSB_REALTEK |
 672                                                      BTUSB_WIDEBAND_SPEECH },
 673         { USB_DEVICE(0x2550, 0x8761), .driver_info = BTUSB_REALTEK |
 674                                                      BTUSB_WIDEBAND_SPEECH },
 675         { USB_DEVICE(0x0bda, 0x8771), .driver_info = BTUSB_REALTEK |
 676                                                      BTUSB_WIDEBAND_SPEECH },
 677         { USB_DEVICE(0x6655, 0x8771), .driver_info = BTUSB_REALTEK |
 678                                                      BTUSB_WIDEBAND_SPEECH },
 679         { USB_DEVICE(0x7392, 0xc611), .driver_info = BTUSB_REALTEK |
 680                                                      BTUSB_WIDEBAND_SPEECH },
 681         { USB_DEVICE(0x2b89, 0x8761), .driver_info = BTUSB_REALTEK |
 682                                                      BTUSB_WIDEBAND_SPEECH },
 683
 684         /* Additional Realtek 8821AE Bluetooth devices */
 685         { USB_DEVICE(0x0b05, 0x17dc), .driver_info = BTUSB_REALTEK },
 686         { USB_DEVICE(0x13d3, 0x3414), .driver_info = BTUSB_REALTEK },
 687         { USB_DEVICE(0x13d3, 0x3458), .driver_info = BTUSB_REALTEK },
 688         { USB_DEVICE(0x13d3, 0x3461), .driver_info = BTUSB_REALTEK },
 689         { USB_DEVICE(0x13d3, 0x3462), .driver_info = BTUSB_REALTEK },
 690
 691         /* Additional Realtek 8822BE Bluetooth devices */
 692         { USB_DEVICE(0x13d3, 0x3526), .driver_info = BTUSB_REALTEK },
 693         { USB_DEVICE(0x0b05, 0x185c), .driver_info = BTUSB_REALTEK },
 694
 695         /* Additional Realtek 8822CE Bluetooth devices */
 696         { USB_DEVICE(0x04ca, 0x4005), .driver_info = BTUSB_REALTEK |
 697                                                      BTUSB_WIDEBAND_SPEECH },
 698         { USB_DEVICE(0x04c5, 0x161f), .driver_info = BTUSB_REALTEK |
 699                                                      BTUSB_WIDEBAND_SPEECH },
 700         { USB_DEVICE(0x0b05, 0x18ef), .driver_info = BTUSB_REALTEK |
 701                                                      BTUSB_WIDEBAND_SPEECH },
 702         { USB_DEVICE(0x13d3, 0x3548), .driver_info = BTUSB_REALTEK |
 703                                                      BTUSB_WIDEBAND_SPEECH },
 704         { USB_DEVICE(0x13d3, 0x3549), .driver_info = BTUSB_REALTEK |
 705                                                      BTUSB_WIDEBAND_SPEECH },
 706         { USB_DEVICE(0x13d3, 0x3553), .driver_info = BTUSB_REALTEK |
 707                                                      BTUSB_WIDEBAND_SPEECH },
 708         { USB_DEVICE(0x13d3, 0x3555), .driver_info = BTUSB_REALTEK |
 709                                                      BTUSB_WIDEBAND_SPEECH },
 710         { USB_DEVICE(0x2ff8, 0x3051), .driver_info = BTUSB_REALTEK |
 711                                                      BTUSB_WIDEBAND_SPEECH },
 712         { USB_DEVICE(0x1358, 0xc123), .driver_info = BTUSB_REALTEK |
 713                                                      BTUSB_WIDEBAND_SPEECH },
 714         { USB_DEVICE(0x0bda, 0xc123), .driver_info = BTUSB_REALTEK |
 715                                                      BTUSB_WIDEBAND_SPEECH },
 716         { USB_DEVICE(0x0cb5, 0xc547), .driver_info = BTUSB_REALTEK |
 717                                                      BTUSB_WIDEBAND_SPEECH },
 718
 719         /* Actions Semiconductor ATS2851 based devices */
 720         { USB_DEVICE(0x10d7, 0xb012), .driver_info = BTUSB_ACTIONS_SEMI },
 721
 722         /* Silicon Wave based devices */
 723         { USB_DEVICE(0x0c10, 0x0000), .driver_info = BTUSB_SWAVE },
 724
 725         { }     /* Terminating entry */
 726 };
 727
 728 /* The Bluetooth USB module build into some devices needs to be reset on resume,
 729  * this is a problem with the platform (likely shutting off all power) not with
 730  * the module itself. So we use a DMI list to match known broken platforms.
 731  */
 732 static const struct dmi_system_id btusb_needs_reset_resume_table[] = {
 733         {
 734                 /* Dell OptiPlex 3060 (QCA ROME device 0cf3:e007) */
 735                 .matches = {
 736                         DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
 737                         DMI_MATCH(DMI_PRODUCT_NAME, "OptiPlex 3060"),
 738                 },
 739         },
 740         {
 741                 /* Dell XPS 9360 (QCA ROME device 0cf3:e300) */
 742                 .matches = {
 743                         DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
 744                         DMI_MATCH(DMI_PRODUCT_NAME, "XPS 13 9360"),
 745                 },
 746         },
 747         {
 748                 /* Dell Inspiron 5565 (QCA ROME device 0cf3:e009) */
 749                 .matches = {
 750                         DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
 751                         DMI_MATCH(DMI_PRODUCT_NAME, "Inspiron 5565"),
 752                 },
 753         },
 754         {}
 755 };
 756
 757 struct qca_dump_info {
 758         /* fields for dump collection */
 759         u16 id_vendor;
 760         u16 id_product;
 761         u32 fw_version;
 762         u32 controller_id;
 763         u32 ram_dump_size;
 764         u16 ram_dump_seqno;
 765 };
 766
 767 #define BTUSB_MAX_ISOC_FRAMES   10
 768
 769 #define BTUSB_INTR_RUNNING      0
 770 #define BTUSB_BULK_RUNNING      1
 771 #define BTUSB_ISOC_RUNNING      2
 772 #define BTUSB_SUSPENDING        3
 773 #define BTUSB_DID_ISO_RESUME    4
 774 #define BTUSB_BOOTLOADER        5
 775 #define BTUSB_DOWNLOADING       6
 776 #define BTUSB_FIRMWARE_LOADED   7
 777 #define BTUSB_FIRMWARE_FAILED   8
 778 #define BTUSB_BOOTING           9
 779 #define BTUSB_DIAG_RUNNING      10
 780 #define BTUSB_OOB_WAKE_ENABLED  11
 781 #define BTUSB_HW_RESET_ACTIVE   12
 782 #define BTUSB_TX_WAIT_VND_EVT   13
 783 #define BTUSB_WAKEUP_AUTOSUSPEND        14
 784 #define BTUSB_USE_ALT3_FOR_WBS  15
 785 #define BTUSB_ALT6_CONTINUOUS_TX        16
 786 #define BTUSB_HW_SSR_ACTIVE     17
 787
 788 struct btusb_data {
 789         struct hci_dev       *hdev;
 790         struct usb_device    *udev;
 791         struct usb_interface *intf;
 792         struct usb_interface *isoc;
 793         struct usb_interface *diag;
 794         unsigned isoc_ifnum;
 795
 796         unsigned long flags;
 797
 798         bool poll_sync;
 799         int intr_interval;
 800         struct work_struct  work;
 801         struct work_struct  waker;
 802         struct delayed_work rx_work;
 803
 804         struct sk_buff_head acl_q;
 805
 806         struct usb_anchor deferred;
 807         struct usb_anchor tx_anchor;
 808         int tx_in_flight;
 809         spinlock_t txlock;
 810
 811         struct usb_anchor intr_anchor;
 812         struct usb_anchor bulk_anchor;
 813         struct usb_anchor isoc_anchor;
 814         struct usb_anchor diag_anchor;
 815         struct usb_anchor ctrl_anchor;
 816         spinlock_t rxlock;
 817
 818         struct sk_buff *evt_skb;
 819         struct sk_buff *acl_skb;
 820         struct sk_buff *sco_skb;
 821
 822         struct usb_endpoint_descriptor *intr_ep;
 823         struct usb_endpoint_descriptor *bulk_tx_ep;
 824         struct usb_endpoint_descriptor *bulk_rx_ep;
 825         struct usb_endpoint_descriptor *isoc_tx_ep;
 826         struct usb_endpoint_descriptor *isoc_rx_ep;
 827         struct usb_endpoint_descriptor *diag_tx_ep;
 828         struct usb_endpoint_descriptor *diag_rx_ep;
 829
 830         struct gpio_desc *reset_gpio;
 831
 832         __u8 cmdreq_type;
 833         __u8 cmdreq;
 834
 835         unsigned int sco_num;
 836         unsigned int air_mode;
 837         bool usb_alt6_packet_flow;
 838         int isoc_altsetting;
 839         int suspend_count;
 840
 841         int (*recv_event)(struct hci_dev *hdev, struct sk_buff *skb);
 842         int (*recv_acl)(struct hci_dev *hdev, struct sk_buff *skb);
 843         int (*recv_bulk)(struct btusb_data *data, void *buffer, int count);
 844
 845         int (*setup_on_usb)(struct hci_dev *hdev);
 846
 847         int (*suspend)(struct hci_dev *hdev);
 848         int (*resume)(struct hci_dev *hdev);
 849
 850         int oob_wake_irq;   /* irq for out-of-band wake-on-bt */
 851         unsigned cmd_timeout_cnt;
 852
 853         struct qca_dump_info qca_dump;
 854 };
 855
 856 static void btusb_reset(struct hci_dev *hdev)
 857 {
 858         struct btusb_data *data;
 859         int err;
 860
 861         if (hdev->reset) {
 862                 hdev->reset(hdev);
 863                 return;
 864         }
 865
 866         data = hci_get_drvdata(hdev);
 867         /* This is not an unbalanced PM reference since the device will reset */
 868         err = usb_autopm_get_interface(data->intf);
 869         if (err) {
 870                 bt_dev_err(hdev, "Failed usb_autopm_get_interface: %d", err);
 871                 return;
 872         }
 873
 874         bt_dev_err(hdev, "Resetting usb device.");
 875         usb_queue_reset_device(data->intf);
 876 }
 877
 878 static void btusb_intel_cmd_timeout(struct hci_dev *hdev)
 879 {
 880         struct btusb_data *data = hci_get_drvdata(hdev);
 881         struct gpio_desc *reset_gpio = data->reset_gpio;
 882         struct btintel_data *intel_data = hci_get_priv(hdev);
 883
 884         if (++data->cmd_timeout_cnt < 5)
 885                 return;
 886
 887         if (intel_data->acpi_reset_method) {
 888                 if (test_and_set_bit(INTEL_ACPI_RESET_ACTIVE, intel_data->flags)) {
 889                         bt_dev_err(hdev, "acpi: last reset failed ? Not resetting again");
 890                         return;
 891                 }
 892
 893                 bt_dev_err(hdev, "Initiating acpi reset method");
 894                 /* If ACPI reset method fails, lets try with legacy GPIO
 895                  * toggling
 896                  */
 897                 if (!intel_data->acpi_reset_method(hdev)) {
 898                         return;
 899                 }
 900         }
 901
 902         if (!reset_gpio) {
 903                 btusb_reset(hdev);
 904                 return;
 905         }
 906
 907         /*
 908          * Toggle the hard reset line if the platform provides one. The reset
 909          * is going to yank the device off the USB and then replug. So doing
 910          * once is enough. The cleanup is handled correctly on the way out
 911          * (standard USB disconnect), and the new device is detected cleanly
 912          * and bound to the driver again like it should be.
 913          */
 914         if (test_and_set_bit(BTUSB_HW_RESET_ACTIVE, &data->flags)) {
 915                 bt_dev_err(hdev, "last reset failed? Not resetting again");
 916                 return;
 917         }
 918
 919         bt_dev_err(hdev, "Initiating HW reset via gpio");
 920         gpiod_set_value_cansleep(reset_gpio, 1);
 921         msleep(100);
 922         gpiod_set_value_cansleep(reset_gpio, 0);
 923 }
 924
 925 #define RTK_DEVCOREDUMP_CODE_MEMDUMP            0x01
 926 #define RTK_DEVCOREDUMP_CODE_HW_ERR             0x02
 927 #define RTK_DEVCOREDUMP_CODE_CMD_TIMEOUT        0x03
 928
 929 #define RTK_SUB_EVENT_CODE_COREDUMP             0x34
 930
 931 struct rtk_dev_coredump_hdr {
 932         u8 type;
 933         u8 code;
 934         u8 reserved[2];
 935 } __packed;
 936
 937 static inline void btusb_rtl_alloc_devcoredump(struct hci_dev *hdev,
 938                 struct rtk_dev_coredump_hdr *hdr, u8 *buf, u32 len)
 939 {
 940         struct sk_buff *skb;
 941
 942         skb = alloc_skb(len + sizeof(*hdr), GFP_ATOMIC);
 943         if (!skb)
 944                 return;
 945
 946         skb_put_data(skb, hdr, sizeof(*hdr));
 947         if (len)
 948                 skb_put_data(skb, buf, len);
 949
 950         if (!hci_devcd_init(hdev, skb->len)) {
 951                 hci_devcd_append(hdev, skb);
 952                 hci_devcd_complete(hdev);
 953         } else {
 954                 bt_dev_err(hdev, "RTL: Failed to generate devcoredump");
 955                 kfree_skb(skb);
 956         }
 957 }
 958
 959 static void btusb_rtl_cmd_timeout(struct hci_dev *hdev)
 960 {
 961         struct btusb_data *data = hci_get_drvdata(hdev);
 962         struct gpio_desc *reset_gpio = data->reset_gpio;
 963         struct rtk_dev_coredump_hdr hdr = {
 964                 .type = RTK_DEVCOREDUMP_CODE_CMD_TIMEOUT,
 965         };
 966
 967         btusb_rtl_alloc_devcoredump(hdev, &hdr, NULL, 0);
 968
 969         if (++data->cmd_timeout_cnt < 5)
 970                 return;
 971
 972         if (!reset_gpio) {
 973                 btusb_reset(hdev);
 974                 return;
 975         }
 976
 977         /* Toggle the hard reset line. The Realtek device is going to
 978          * yank itself off the USB and then replug. The cleanup is handled
 979          * correctly on the way out (standard USB disconnect), and the new
 980          * device is detected cleanly and bound to the driver again like
 981          * it should be.
 982          */
 983         if (test_and_set_bit(BTUSB_HW_RESET_ACTIVE, &data->flags)) {
 984                 bt_dev_err(hdev, "last reset failed? Not resetting again");
 985                 return;
 986         }
 987
 988         bt_dev_err(hdev, "Reset Realtek device via gpio");
 989         gpiod_set_value_cansleep(reset_gpio, 1);
 990         msleep(200);
 991         gpiod_set_value_cansleep(reset_gpio, 0);
 992 }
 993
 994 static void btusb_rtl_hw_error(struct hci_dev *hdev, u8 code)
 995 {
 996         struct rtk_dev_coredump_hdr hdr = {
 997                 .type = RTK_DEVCOREDUMP_CODE_HW_ERR,
 998                 .code = code,
 999         };
1000
1001         bt_dev_err(hdev, "RTL: hw err, trigger devcoredump (%d)", code);
1002
1003         btusb_rtl_alloc_devcoredump(hdev, &hdr, NULL, 0);
1004 }
1005
1006 static void btusb_qca_cmd_timeout(struct hci_dev *hdev)
1007 {
1008         struct btusb_data *data = hci_get_drvdata(hdev);
1009         struct gpio_desc *reset_gpio = data->reset_gpio;
1010
1011         if (test_bit(BTUSB_HW_SSR_ACTIVE, &data->flags)) {
1012                 bt_dev_info(hdev, "Ramdump in progress, defer cmd_timeout");
1013                 return;
1014         }
1015
1016         if (++data->cmd_timeout_cnt < 5)
1017                 return;
1018
1019         if (reset_gpio) {
1020                 bt_dev_err(hdev, "Reset qca device via bt_en gpio");
1021
1022                 /* Toggle the hard reset line. The qca bt device is going to
1023                  * yank itself off the USB and then replug. The cleanup is handled
1024                  * correctly on the way out (standard USB disconnect), and the new
1025                  * device is detected cleanly and bound to the driver again like
1026                  * it should be.
1027                  */
1028                 if (test_and_set_bit(BTUSB_HW_RESET_ACTIVE, &data->flags)) {
1029                         bt_dev_err(hdev, "last reset failed? Not resetting again");
1030                         return;
1031                 }
1032
1033                 gpiod_set_value_cansleep(reset_gpio, 0);
1034                 msleep(200);
1035                 gpiod_set_value_cansleep(reset_gpio, 1);
1036
1037                 return;
1038         }
1039
1040         btusb_reset(hdev);
1041 }
1042
1043 static inline void btusb_free_frags(struct btusb_data *data)
1044 {
1045         unsigned long flags;
1046
1047         spin_lock_irqsave(&data->rxlock, flags);
1048
1049         dev_kfree_skb_irq(data->evt_skb);
1050         data->evt_skb = NULL;
1051
1052         dev_kfree_skb_irq(data->acl_skb);
1053         data->acl_skb = NULL;
1054
1055         dev_kfree_skb_irq(data->sco_skb);
1056         data->sco_skb = NULL;
1057
1058         spin_unlock_irqrestore(&data->rxlock, flags);
1059 }
1060
1061 static int btusb_recv_event(struct btusb_data *data, struct sk_buff *skb)
1062 {
1063         if (data->intr_interval) {
1064                 /* Trigger dequeue immediatelly if an event is received */
1065                 schedule_delayed_work(&data->rx_work, 0);
1066         }
1067
1068         return data->recv_event(data->hdev, skb);
1069 }
1070
1071 static int btusb_recv_intr(struct btusb_data *data, void *buffer, int count)
1072 {
1073         struct sk_buff *skb;
1074         unsigned long flags;
1075         int err = 0;
1076
1077         spin_lock_irqsave(&data->rxlock, flags);
1078         skb = data->evt_skb;
1079
1080         while (count) {
1081                 int len;
1082
1083                 if (!skb) {
1084                         skb = bt_skb_alloc(HCI_MAX_EVENT_SIZE, GFP_ATOMIC);
1085                         if (!skb) {
1086                                 err = -ENOMEM;
1087                                 break;
1088                         }
1089
1090                         hci_skb_pkt_type(skb) = HCI_EVENT_PKT;
1091                         hci_skb_expect(skb) = HCI_EVENT_HDR_SIZE;
1092                 }
1093
1094                 len = min_t(uint, hci_skb_expect(skb), count);
1095                 skb_put_data(skb, buffer, len);
1096
1097                 count -= len;
1098                 buffer += len;
1099                 hci_skb_expect(skb) -= len;
1100
1101                 if (skb->len == HCI_EVENT_HDR_SIZE) {
1102                         /* Complete event header */
1103                         hci_skb_expect(skb) = hci_event_hdr(skb)->plen;
1104
1105                         if (skb_tailroom(skb) < hci_skb_expect(skb)) {
1106                                 kfree_skb(skb);
1107                                 skb = NULL;
1108
1109                                 err = -EILSEQ;
1110                                 break;
1111                         }
1112                 }
1113
1114                 if (!hci_skb_expect(skb)) {
1115                         /* Complete frame */
1116                         btusb_recv_event(data, skb);
1117                         skb = NULL;
1118                 }
1119         }
1120
1121         data->evt_skb = skb;
1122         spin_unlock_irqrestore(&data->rxlock, flags);
1123
1124         return err;
1125 }
1126
1127 static int btusb_recv_acl(struct btusb_data *data, struct sk_buff *skb)
1128 {
1129         /* Only queue ACL packet if intr_interval is set as it means
1130          * force_poll_sync has been enabled.
1131          */
1132         if (!data->intr_interval)
1133                 return data->recv_acl(data->hdev, skb);
1134
1135         skb_queue_tail(&data->acl_q, skb);
1136         schedule_delayed_work(&data->rx_work, data->intr_interval);
1137
1138         return 0;
1139 }
1140
1141 static int btusb_recv_bulk(struct btusb_data *data, void *buffer, int count)
1142 {
1143         struct sk_buff *skb;
1144         unsigned long flags;
1145         int err = 0;
1146
1147         spin_lock_irqsave(&data->rxlock, flags);
1148         skb = data->acl_skb;
1149
1150         while (count) {
1151                 int len;
1152
1153                 if (!skb) {
1154                         skb = bt_skb_alloc(HCI_MAX_FRAME_SIZE, GFP_ATOMIC);
1155                         if (!skb) {
1156                                 err = -ENOMEM;
1157                                 break;
1158                         }
1159
1160                         hci_skb_pkt_type(skb) = HCI_ACLDATA_PKT;
1161                         hci_skb_expect(skb) = HCI_ACL_HDR_SIZE;
1162                 }
1163
1164                 len = min_t(uint, hci_skb_expect(skb), count);
1165                 skb_put_data(skb, buffer, len);
1166
1167                 count -= len;
1168                 buffer += len;
1169                 hci_skb_expect(skb) -= len;
1170
1171                 if (skb->len == HCI_ACL_HDR_SIZE) {
1172                         __le16 dlen = hci_acl_hdr(skb)->dlen;
1173
1174                         /* Complete ACL header */
1175                         hci_skb_expect(skb) = __le16_to_cpu(dlen);
1176
1177                         if (skb_tailroom(skb) < hci_skb_expect(skb)) {
1178                                 kfree_skb(skb);
1179                                 skb = NULL;
1180
1181                                 err = -EILSEQ;
1182                                 break;
1183                         }
1184                 }
1185
1186                 if (!hci_skb_expect(skb)) {
1187                         /* Complete frame */
1188                         btusb_recv_acl(data, skb);
1189                         skb = NULL;
1190                 }
1191         }
1192
1193         data->acl_skb = skb;
1194         spin_unlock_irqrestore(&data->rxlock, flags);
1195
1196         return err;
1197 }
1198
1199 static bool btusb_validate_sco_handle(struct hci_dev *hdev,
1200                                       struct hci_sco_hdr *hdr)
1201 {
1202         __u16 handle;
1203
1204         if (hci_dev_test_flag(hdev, HCI_USER_CHANNEL))
1205                 // Can't validate, userspace controls everything.
1206                 return true;
1207
1208         /*
1209          * USB isochronous transfers are not designed to be reliable and may
1210          * lose fragments.  When this happens, the next first fragment
1211          * encountered might actually be a continuation fragment.
1212          * Validate the handle to detect it and drop it, or else the upper
1213          * layer will get garbage for a while.
1214          */
1215
1216         handle = hci_handle(__le16_to_cpu(hdr->handle));
1217
1218         switch (hci_conn_lookup_type(hdev, handle)) {
1219         case SCO_LINK:
1220         case ESCO_LINK:
1221                 return true;
1222         default:
1223                 return false;
1224         }
1225 }
1226
1227 static int btusb_recv_isoc(struct btusb_data *data, void *buffer, int count)
1228 {
1229         struct sk_buff *skb;
1230         unsigned long flags;
1231         int err = 0;
1232
1233         spin_lock_irqsave(&data->rxlock, flags);
1234         skb = data->sco_skb;
1235
1236         while (count) {
1237                 int len;
1238
1239                 if (!skb) {
1240                         skb = bt_skb_alloc(HCI_MAX_SCO_SIZE, GFP_ATOMIC);
1241                         if (!skb) {
1242                                 err = -ENOMEM;
1243                                 break;
1244                         }
1245
1246                         hci_skb_pkt_type(skb) = HCI_SCODATA_PKT;
1247                         hci_skb_expect(skb) = HCI_SCO_HDR_SIZE;
1248                 }
1249
1250                 len = min_t(uint, hci_skb_expect(skb), count);
1251                 skb_put_data(skb, buffer, len);
1252
1253                 count -= len;
1254                 buffer += len;
1255                 hci_skb_expect(skb) -= len;
1256
1257                 if (skb->len == HCI_SCO_HDR_SIZE) {
1258                         /* Complete SCO header */
1259                         struct hci_sco_hdr *hdr = hci_sco_hdr(skb);
1260
1261                         hci_skb_expect(skb) = hdr->dlen;
1262
1263                         if (skb_tailroom(skb) < hci_skb_expect(skb) ||
1264                             !btusb_validate_sco_handle(data->hdev, hdr)) {
1265                                 kfree_skb(skb);
1266                                 skb = NULL;
1267
1268                                 err = -EILSEQ;
1269                                 break;
1270                         }
1271                 }
1272
1273                 if (!hci_skb_expect(skb)) {
1274                         /* Complete frame */
1275                         hci_recv_frame(data->hdev, skb);
1276                         skb = NULL;
1277                 }
1278         }
1279
1280         data->sco_skb = skb;
1281         spin_unlock_irqrestore(&data->rxlock, flags);
1282
1283         return err;
1284 }
1285
1286 static void btusb_intr_complete(struct urb *urb)
1287 {
1288         struct hci_dev *hdev = urb->context;
1289         struct btusb_data *data = hci_get_drvdata(hdev);
1290         int err;
1291
1292         BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
1293                urb->actual_length);
1294
1295         if (!test_bit(HCI_RUNNING, &hdev->flags))
1296                 return;
1297
1298         if (urb->status == 0) {
1299                 hdev->stat.byte_rx += urb->actual_length;
1300
1301                 if (btusb_recv_intr(data, urb->transfer_buffer,
1302                                     urb->actual_length) < 0) {
1303                         bt_dev_err(hdev, "corrupted event packet");
1304                         hdev->stat.err_rx++;
1305                 }
1306         } else if (urb->status == -ENOENT) {
1307                 /* Avoid suspend failed when usb_kill_urb */
1308                 return;
1309         }
1310
1311         if (!test_bit(BTUSB_INTR_RUNNING, &data->flags))
1312                 return;
1313
1314         usb_mark_last_busy(data->udev);
1315         usb_anchor_urb(urb, &data->intr_anchor);
1316
1317         err = usb_submit_urb(urb, GFP_ATOMIC);
1318         if (err < 0) {
1319                 /* -EPERM: urb is being killed;
1320                  * -ENODEV: device got disconnected
1321                  */
1322                 if (err != -EPERM && err != -ENODEV)
1323                         bt_dev_err(hdev, "urb %p failed to resubmit (%d)",
1324                                    urb, -err);
1325                 if (err != -EPERM)
1326                         hci_cmd_sync_cancel(hdev, -err);
1327                 usb_unanchor_urb(urb);
1328         }
1329 }
1330
1331 static int btusb_submit_intr_urb(struct hci_dev *hdev, gfp_t mem_flags)
1332 {
1333         struct btusb_data *data = hci_get_drvdata(hdev);
1334         struct urb *urb;
1335         unsigned char *buf;
1336         unsigned int pipe;
1337         int err, size;
1338
1339         BT_DBG("%s", hdev->name);
1340
1341         if (!data->intr_ep)
1342                 return -ENODEV;
1343
1344         urb = usb_alloc_urb(0, mem_flags);
1345         if (!urb)
1346                 return -ENOMEM;
1347
1348         /* Use maximum HCI Event size so the USB stack handles
1349          * ZPL/short-transfer automatically.
1350          */
1351         size = HCI_MAX_EVENT_SIZE;
1352
1353         buf = kmalloc(size, mem_flags);
1354         if (!buf) {
1355                 usb_free_urb(urb);
1356                 return -ENOMEM;
1357         }
1358
1359         pipe = usb_rcvintpipe(data->udev, data->intr_ep->bEndpointAddress);
1360
1361         usb_fill_int_urb(urb, data->udev, pipe, buf, size,
1362                          btusb_intr_complete, hdev, data->intr_ep->bInterval);
1363
1364         urb->transfer_flags |= URB_FREE_BUFFER;
1365
1366         usb_anchor_urb(urb, &data->intr_anchor);
1367
1368         err = usb_submit_urb(urb, mem_flags);
1369         if (err < 0) {
1370                 if (err != -EPERM && err != -ENODEV)
1371                         bt_dev_err(hdev, "urb %p submission failed (%d)",
1372                                    urb, -err);
1373                 if (err != -EPERM)
1374                         hci_cmd_sync_cancel(hdev, -err);
1375                 usb_unanchor_urb(urb);
1376         }
1377
1378         /* Only initialize intr_interval if URB poll sync is enabled */
1379         if (!data->poll_sync)
1380                 goto done;
1381
1382         /* The units are frames (milliseconds) for full and low speed devices,
1383          * and microframes (1/8 millisecond) for highspeed and SuperSpeed
1384          * devices.
1385          *
1386          * This is done once on open/resume so it shouldn't change even if
1387          * force_poll_sync changes.
1388          */
1389         switch (urb->dev->speed) {
1390         case USB_SPEED_SUPER_PLUS:
1391         case USB_SPEED_SUPER:   /* units are 125us */
1392                 data->intr_interval = usecs_to_jiffies(urb->interval * 125);
1393                 break;
1394         default:
1395                 data->intr_interval = msecs_to_jiffies(urb->interval);
1396                 break;
1397         }
1398
1399 done:
1400         usb_free_urb(urb);
1401
1402         return err;
1403 }
1404
1405 static void btusb_bulk_complete(struct urb *urb)
1406 {
1407         struct hci_dev *hdev = urb->context;
1408         struct btusb_data *data = hci_get_drvdata(hdev);
1409         int err;
1410
1411         BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
1412                urb->actual_length);
1413
1414         if (!test_bit(HCI_RUNNING, &hdev->flags))
1415                 return;
1416
1417         if (urb->status == 0) {
1418                 hdev->stat.byte_rx += urb->actual_length;
1419
1420                 if (data->recv_bulk(data, urb->transfer_buffer,
1421                                     urb->actual_length) < 0) {
1422                         bt_dev_err(hdev, "corrupted ACL packet");
1423                         hdev->stat.err_rx++;
1424                 }
1425         } else if (urb->status == -ENOENT) {
1426                 /* Avoid suspend failed when usb_kill_urb */
1427                 return;
1428         }
1429
1430         if (!test_bit(BTUSB_BULK_RUNNING, &data->flags))
1431                 return;
1432
1433         usb_anchor_urb(urb, &data->bulk_anchor);
1434         usb_mark_last_busy(data->udev);
1435
1436         err = usb_submit_urb(urb, GFP_ATOMIC);
1437         if (err < 0) {
1438                 /* -EPERM: urb is being killed;
1439                  * -ENODEV: device got disconnected
1440                  */
1441                 if (err != -EPERM && err != -ENODEV)
1442                         bt_dev_err(hdev, "urb %p failed to resubmit (%d)",
1443                                    urb, -err);
1444                 usb_unanchor_urb(urb);
1445         }
1446 }
1447
1448 static int btusb_submit_bulk_urb(struct hci_dev *hdev, gfp_t mem_flags)
1449 {
1450         struct btusb_data *data = hci_get_drvdata(hdev);
1451         struct urb *urb;
1452         unsigned char *buf;
1453         unsigned int pipe;
1454         int err, size = HCI_MAX_FRAME_SIZE;
1455
1456         BT_DBG("%s", hdev->name);
1457
1458         if (!data->bulk_rx_ep)
1459                 return -ENODEV;
1460
1461         urb = usb_alloc_urb(0, mem_flags);
1462         if (!urb)
1463                 return -ENOMEM;
1464
1465         buf = kmalloc(size, mem_flags);
1466         if (!buf) {
1467                 usb_free_urb(urb);
1468                 return -ENOMEM;
1469         }
1470
1471         pipe = usb_rcvbulkpipe(data->udev, data->bulk_rx_ep->bEndpointAddress);
1472
1473         usb_fill_bulk_urb(urb, data->udev, pipe, buf, size,
1474                           btusb_bulk_complete, hdev);
1475
1476         urb->transfer_flags |= URB_FREE_BUFFER;
1477
1478         usb_mark_last_busy(data->udev);
1479         usb_anchor_urb(urb, &data->bulk_anchor);
1480
1481         err = usb_submit_urb(urb, mem_flags);
1482         if (err < 0) {
1483                 if (err != -EPERM && err != -ENODEV)
1484                         bt_dev_err(hdev, "urb %p submission failed (%d)",
1485                                    urb, -err);
1486                 usb_unanchor_urb(urb);
1487         }
1488
1489         usb_free_urb(urb);
1490
1491         return err;
1492 }
1493
1494 static void btusb_isoc_complete(struct urb *urb)
1495 {
1496         struct hci_dev *hdev = urb->context;
1497         struct btusb_data *data = hci_get_drvdata(hdev);
1498         int i, err;
1499
1500         BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
1501                urb->actual_length);
1502
1503         if (!test_bit(HCI_RUNNING, &hdev->flags))
1504                 return;
1505
1506         if (urb->status == 0) {
1507                 for (i = 0; i < urb->number_of_packets; i++) {
1508                         unsigned int offset = urb->iso_frame_desc[i].offset;
1509                         unsigned int length = urb->iso_frame_desc[i].actual_length;
1510
1511                         if (urb->iso_frame_desc[i].status)
1512                                 continue;
1513
1514                         hdev->stat.byte_rx += length;
1515
1516                         if (btusb_recv_isoc(data, urb->transfer_buffer + offset,
1517                                             length) < 0) {
1518                                 bt_dev_err(hdev, "corrupted SCO packet");
1519                                 hdev->stat.err_rx++;
1520                         }
1521                 }
1522         } else if (urb->status == -ENOENT) {
1523                 /* Avoid suspend failed when usb_kill_urb */
1524                 return;
1525         }
1526
1527         if (!test_bit(BTUSB_ISOC_RUNNING, &data->flags))
1528                 return;
1529
1530         usb_anchor_urb(urb, &data->isoc_anchor);
1531
1532         err = usb_submit_urb(urb, GFP_ATOMIC);
1533         if (err < 0) {
1534                 /* -EPERM: urb is being killed;
1535                  * -ENODEV: device got disconnected
1536                  */
1537                 if (err != -EPERM && err != -ENODEV)
1538                         bt_dev_err(hdev, "urb %p failed to resubmit (%d)",
1539                                    urb, -err);
1540                 usb_unanchor_urb(urb);
1541         }
1542 }
1543
1544 static inline void __fill_isoc_descriptor_msbc(struct urb *urb, int len,
1545                                                int mtu, struct btusb_data *data)
1546 {
1547         int i = 0, offset = 0;
1548         unsigned int interval;
1549
1550         BT_DBG("len %d mtu %d", len, mtu);
1551
1552         /* For mSBC ALT 6 settings some chips need to transmit the data
1553          * continuously without the zero length of USB packets.
1554          */
1555         if (test_bit(BTUSB_ALT6_CONTINUOUS_TX, &data->flags))
1556                 goto ignore_usb_alt6_packet_flow;
1557
1558         /* For mSBC ALT 6 setting the host will send the packet at continuous
1559          * flow. As per core spec 5, vol 4, part B, table 2.1. For ALT setting
1560          * 6 the HCI PACKET INTERVAL should be 7.5ms for every usb packets.
1561          * To maintain the rate we send 63bytes of usb packets alternatively for
1562          * 7ms and 8ms to maintain the rate as 7.5ms.
1563          */
1564         if (data->usb_alt6_packet_flow) {
1565                 interval = 7;
1566                 data->usb_alt6_packet_flow = false;
1567         } else {
1568                 interval = 6;
1569                 data->usb_alt6_packet_flow = true;
1570         }
1571
1572         for (i = 0; i < interval; i++) {
1573                 urb->iso_frame_desc[i].offset = offset;
1574                 urb->iso_frame_desc[i].length = offset;
1575         }
1576
1577 ignore_usb_alt6_packet_flow:
1578         if (len && i < BTUSB_MAX_ISOC_FRAMES) {
1579                 urb->iso_frame_desc[i].offset = offset;
1580                 urb->iso_frame_desc[i].length = len;
1581                 i++;
1582         }
1583
1584         urb->number_of_packets = i;
1585 }
1586
1587 static inline void __fill_isoc_descriptor(struct urb *urb, int len, int mtu)
1588 {
1589         int i, offset = 0;
1590
1591         BT_DBG("len %d mtu %d", len, mtu);
1592
1593         for (i = 0; i < BTUSB_MAX_ISOC_FRAMES && len >= mtu;
1594                                         i++, offset += mtu, len -= mtu) {
1595                 urb->iso_frame_desc[i].offset = offset;
1596                 urb->iso_frame_desc[i].length = mtu;
1597         }
1598
1599         if (len && i < BTUSB_MAX_ISOC_FRAMES) {
1600                 urb->iso_frame_desc[i].offset = offset;
1601                 urb->iso_frame_desc[i].length = len;
1602                 i++;
1603         }
1604
1605         urb->number_of_packets = i;
1606 }
1607
1608 static int btusb_submit_isoc_urb(struct hci_dev *hdev, gfp_t mem_flags)
1609 {
1610         struct btusb_data *data = hci_get_drvdata(hdev);
1611         struct urb *urb;
1612         unsigned char *buf;
1613         unsigned int pipe;
1614         int err, size;
1615
1616         BT_DBG("%s", hdev->name);
1617
1618         if (!data->isoc_rx_ep)
1619                 return -ENODEV;
1620
1621         urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, mem_flags);
1622         if (!urb)
1623                 return -ENOMEM;
1624
1625         size = le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize) *
1626                                                 BTUSB_MAX_ISOC_FRAMES;
1627
1628         buf = kmalloc(size, mem_flags);
1629         if (!buf) {
1630                 usb_free_urb(urb);
1631                 return -ENOMEM;
1632         }
1633
1634         pipe = usb_rcvisocpipe(data->udev, data->isoc_rx_ep->bEndpointAddress);
1635
1636         usb_fill_int_urb(urb, data->udev, pipe, buf, size, btusb_isoc_complete,
1637                          hdev, data->isoc_rx_ep->bInterval);
1638
1639         urb->transfer_flags = URB_FREE_BUFFER | URB_ISO_ASAP;
1640
1641         __fill_isoc_descriptor(urb, size,
1642                                le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize));
1643
1644         usb_anchor_urb(urb, &data->isoc_anchor);
1645
1646         err = usb_submit_urb(urb, mem_flags);
1647         if (err < 0) {
1648                 if (err != -EPERM && err != -ENODEV)
1649                         bt_dev_err(hdev, "urb %p submission failed (%d)",
1650                                    urb, -err);
1651                 usb_unanchor_urb(urb);
1652         }
1653
1654         usb_free_urb(urb);
1655
1656         return err;
1657 }
1658
1659 static void btusb_diag_complete(struct urb *urb)
1660 {
1661         struct hci_dev *hdev = urb->context;
1662         struct btusb_data *data = hci_get_drvdata(hdev);
1663         int err;
1664
1665         BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
1666                urb->actual_length);
1667
1668         if (urb->status == 0) {
1669                 struct sk_buff *skb;
1670
1671                 skb = bt_skb_alloc(urb->actual_length, GFP_ATOMIC);
1672                 if (skb) {
1673                         skb_put_data(skb, urb->transfer_buffer,
1674                                      urb->actual_length);
1675                         hci_recv_diag(hdev, skb);
1676                 }
1677         } else if (urb->status == -ENOENT) {
1678                 /* Avoid suspend failed when usb_kill_urb */
1679                 return;
1680         }
1681
1682         if (!test_bit(BTUSB_DIAG_RUNNING, &data->flags))
1683                 return;
1684
1685         usb_anchor_urb(urb, &data->diag_anchor);
1686         usb_mark_last_busy(data->udev);
1687
1688         err = usb_submit_urb(urb, GFP_ATOMIC);
1689         if (err < 0) {
1690                 /* -EPERM: urb is being killed;
1691                  * -ENODEV: device got disconnected
1692                  */
1693                 if (err != -EPERM && err != -ENODEV)
1694                         bt_dev_err(hdev, "urb %p failed to resubmit (%d)",
1695                                    urb, -err);
1696                 usb_unanchor_urb(urb);
1697         }
1698 }
1699
1700 static int btusb_submit_diag_urb(struct hci_dev *hdev, gfp_t mem_flags)
1701 {
1702         struct btusb_data *data = hci_get_drvdata(hdev);
1703         struct urb *urb;
1704         unsigned char *buf;
1705         unsigned int pipe;
1706         int err, size = HCI_MAX_FRAME_SIZE;
1707
1708         BT_DBG("%s", hdev->name);
1709
1710         if (!data->diag_rx_ep)
1711                 return -ENODEV;
1712
1713         urb = usb_alloc_urb(0, mem_flags);
1714         if (!urb)
1715                 return -ENOMEM;
1716
1717         buf = kmalloc(size, mem_flags);
1718         if (!buf) {
1719                 usb_free_urb(urb);
1720                 return -ENOMEM;
1721         }
1722
1723         pipe = usb_rcvbulkpipe(data->udev, data->diag_rx_ep->bEndpointAddress);
1724
1725         usb_fill_bulk_urb(urb, data->udev, pipe, buf, size,
1726                           btusb_diag_complete, hdev);
1727
1728         urb->transfer_flags |= URB_FREE_BUFFER;
1729
1730         usb_mark_last_busy(data->udev);
1731         usb_anchor_urb(urb, &data->diag_anchor);
1732
1733         err = usb_submit_urb(urb, mem_flags);
1734         if (err < 0) {
1735                 if (err != -EPERM && err != -ENODEV)
1736                         bt_dev_err(hdev, "urb %p submission failed (%d)",
1737                                    urb, -err);
1738                 usb_unanchor_urb(urb);
1739         }
1740
1741         usb_free_urb(urb);
1742
1743         return err;
1744 }
1745
1746 static void btusb_tx_complete(struct urb *urb)
1747 {
1748         struct sk_buff *skb = urb->context;
1749         struct hci_dev *hdev = (struct hci_dev *)skb->dev;
1750         struct btusb_data *data = hci_get_drvdata(hdev);
1751         unsigned long flags;
1752
1753         BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
1754                urb->actual_length);
1755
1756         if (!test_bit(HCI_RUNNING, &hdev->flags))
1757                 goto done;
1758
1759         if (!urb->status) {
1760                 hdev->stat.byte_tx += urb->transfer_buffer_length;
1761         } else {
1762                 if (hci_skb_pkt_type(skb) == HCI_COMMAND_PKT)
1763                         hci_cmd_sync_cancel(hdev, -urb->status);
1764                 hdev->stat.err_tx++;
1765         }
1766
1767 done:
1768         spin_lock_irqsave(&data->txlock, flags);
1769         data->tx_in_flight--;
1770         spin_unlock_irqrestore(&data->txlock, flags);
1771
1772         kfree(urb->setup_packet);
1773
1774         kfree_skb(skb);
1775 }
1776
1777 static void btusb_isoc_tx_complete(struct urb *urb)
1778 {
1779         struct sk_buff *skb = urb->context;
1780         struct hci_dev *hdev = (struct hci_dev *)skb->dev;
1781
1782         BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
1783                urb->actual_length);
1784
1785         if (!test_bit(HCI_RUNNING, &hdev->flags))
1786                 goto done;
1787
1788         if (!urb->status)
1789                 hdev->stat.byte_tx += urb->transfer_buffer_length;
1790         else
1791                 hdev->stat.err_tx++;
1792
1793 done:
1794         kfree(urb->setup_packet);
1795
1796         kfree_skb(skb);
1797 }
1798
1799 static int btusb_open(struct hci_dev *hdev)
1800 {
1801         struct btusb_data *data = hci_get_drvdata(hdev);
1802         int err;
1803
1804         BT_DBG("%s", hdev->name);
1805
1806         err = usb_autopm_get_interface(data->intf);
1807         if (err < 0)
1808                 return err;
1809
1810         /* Patching USB firmware files prior to starting any URBs of HCI path
1811          * It is more safe to use USB bulk channel for downloading USB patch
1812          */
1813         if (data->setup_on_usb) {
1814                 err = data->setup_on_usb(hdev);
1815                 if (err < 0)
1816                         goto setup_fail;
1817         }
1818
1819         data->intf->needs_remote_wakeup = 1;
1820
1821         if (test_and_set_bit(BTUSB_INTR_RUNNING, &data->flags))
1822                 goto done;
1823
1824         err = btusb_submit_intr_urb(hdev, GFP_KERNEL);
1825         if (err < 0)
1826                 goto failed;
1827
1828         err = btusb_submit_bulk_urb(hdev, GFP_KERNEL);
1829         if (err < 0) {
1830                 usb_kill_anchored_urbs(&data->intr_anchor);
1831                 goto failed;
1832         }
1833
1834         set_bit(BTUSB_BULK_RUNNING, &data->flags);
1835         btusb_submit_bulk_urb(hdev, GFP_KERNEL);
1836
1837         if (data->diag) {
1838                 if (!btusb_submit_diag_urb(hdev, GFP_KERNEL))
1839                         set_bit(BTUSB_DIAG_RUNNING, &data->flags);
1840         }
1841
1842 done:
1843         usb_autopm_put_interface(data->intf);
1844         return 0;
1845
1846 failed:
1847         clear_bit(BTUSB_INTR_RUNNING, &data->flags);
1848 setup_fail:
1849         usb_autopm_put_interface(data->intf);
1850         return err;
1851 }
1852
1853 static void btusb_stop_traffic(struct btusb_data *data)
1854 {
1855         usb_kill_anchored_urbs(&data->intr_anchor);
1856         usb_kill_anchored_urbs(&data->bulk_anchor);
1857         usb_kill_anchored_urbs(&data->isoc_anchor);
1858         usb_kill_anchored_urbs(&data->diag_anchor);
1859         usb_kill_anchored_urbs(&data->ctrl_anchor);
1860 }
1861
1862 static int btusb_close(struct hci_dev *hdev)
1863 {
1864         struct btusb_data *data = hci_get_drvdata(hdev);
1865         int err;
1866
1867         BT_DBG("%s", hdev->name);
1868
1869         cancel_delayed_work(&data->rx_work);
1870         cancel_work_sync(&data->work);
1871         cancel_work_sync(&data->waker);
1872
1873         skb_queue_purge(&data->acl_q);
1874
1875         clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
1876         clear_bit(BTUSB_BULK_RUNNING, &data->flags);
1877         clear_bit(BTUSB_INTR_RUNNING, &data->flags);
1878         clear_bit(BTUSB_DIAG_RUNNING, &data->flags);
1879
1880         btusb_stop_traffic(data);
1881         btusb_free_frags(data);
1882
1883         err = usb_autopm_get_interface(data->intf);
1884         if (err < 0)
1885                 goto failed;
1886
1887         data->intf->needs_remote_wakeup = 0;
1888
1889         /* Enable remote wake up for auto-suspend */
1890         if (test_bit(BTUSB_WAKEUP_AUTOSUSPEND, &data->flags))
1891                 data->intf->needs_remote_wakeup = 1;
1892
1893         usb_autopm_put_interface(data->intf);
1894
1895 failed:
1896         usb_scuttle_anchored_urbs(&data->deferred);
1897         return 0;
1898 }
1899
1900 static int btusb_flush(struct hci_dev *hdev)
1901 {
1902         struct btusb_data *data = hci_get_drvdata(hdev);
1903
1904         BT_DBG("%s", hdev->name);
1905
1906         cancel_delayed_work(&data->rx_work);
1907
1908         skb_queue_purge(&data->acl_q);
1909
1910         usb_kill_anchored_urbs(&data->tx_anchor);
1911         btusb_free_frags(data);
1912
1913         return 0;
1914 }
1915
1916 static struct urb *alloc_ctrl_urb(struct hci_dev *hdev, struct sk_buff *skb)
1917 {
1918         struct btusb_data *data = hci_get_drvdata(hdev);
1919         struct usb_ctrlrequest *dr;
1920         struct urb *urb;
1921         unsigned int pipe;
1922
1923         urb = usb_alloc_urb(0, GFP_KERNEL);
1924         if (!urb)
1925                 return ERR_PTR(-ENOMEM);
1926
1927         dr = kmalloc(sizeof(*dr), GFP_KERNEL);
1928         if (!dr) {
1929                 usb_free_urb(urb);
1930                 return ERR_PTR(-ENOMEM);
1931         }
1932
1933         dr->bRequestType = data->cmdreq_type;
1934         dr->bRequest     = data->cmdreq;
1935         dr->wIndex       = 0;
1936         dr->wValue       = 0;
1937         dr->wLength      = __cpu_to_le16(skb->len);
1938
1939         pipe = usb_sndctrlpipe(data->udev, 0x00);
1940
1941         usb_fill_control_urb(urb, data->udev, pipe, (void *)dr,
1942                              skb->data, skb->len, btusb_tx_complete, skb);
1943
1944         skb->dev = (void *)hdev;
1945
1946         return urb;
1947 }
1948
1949 static struct urb *alloc_bulk_urb(struct hci_dev *hdev, struct sk_buff *skb)
1950 {
1951         struct btusb_data *data = hci_get_drvdata(hdev);
1952         struct urb *urb;
1953         unsigned int pipe;
1954
1955         if (!data->bulk_tx_ep)
1956                 return ERR_PTR(-ENODEV);
1957
1958         urb = usb_alloc_urb(0, GFP_KERNEL);
1959         if (!urb)
1960                 return ERR_PTR(-ENOMEM);
1961
1962         pipe = usb_sndbulkpipe(data->udev, data->bulk_tx_ep->bEndpointAddress);
1963
1964         usb_fill_bulk_urb(urb, data->udev, pipe,
1965                           skb->data, skb->len, btusb_tx_complete, skb);
1966
1967         skb->dev = (void *)hdev;
1968
1969         return urb;
1970 }
1971
1972 static struct urb *alloc_isoc_urb(struct hci_dev *hdev, struct sk_buff *skb)
1973 {
1974         struct btusb_data *data = hci_get_drvdata(hdev);
1975         struct urb *urb;
1976         unsigned int pipe;
1977
1978         if (!data->isoc_tx_ep)
1979                 return ERR_PTR(-ENODEV);
1980
1981         urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, GFP_KERNEL);
1982         if (!urb)
1983                 return ERR_PTR(-ENOMEM);
1984
1985         pipe = usb_sndisocpipe(data->udev, data->isoc_tx_ep->bEndpointAddress);
1986
1987         usb_fill_int_urb(urb, data->udev, pipe,
1988                          skb->data, skb->len, btusb_isoc_tx_complete,
1989                          skb, data->isoc_tx_ep->bInterval);
1990
1991         urb->transfer_flags  = URB_ISO_ASAP;
1992
1993         if (data->isoc_altsetting == 6)
1994                 __fill_isoc_descriptor_msbc(urb, skb->len,
1995                                             le16_to_cpu(data->isoc_tx_ep->wMaxPacketSize),
1996                                             data);
1997         else
1998                 __fill_isoc_descriptor(urb, skb->len,
1999                                        le16_to_cpu(data->isoc_tx_ep->wMaxPacketSize));
2000         skb->dev = (void *)hdev;
2001
2002         return urb;
2003 }
2004
2005 static int submit_tx_urb(struct hci_dev *hdev, struct urb *urb)
2006 {
2007         struct btusb_data *data = hci_get_drvdata(hdev);
2008         int err;
2009
2010         usb_anchor_urb(urb, &data->tx_anchor);
2011
2012         err = usb_submit_urb(urb, GFP_KERNEL);
2013         if (err < 0) {
2014                 if (err != -EPERM && err != -ENODEV)
2015                         bt_dev_err(hdev, "urb %p submission failed (%d)",
2016                                    urb, -err);
2017                 kfree(urb->setup_packet);
2018                 usb_unanchor_urb(urb);
2019         } else {
2020                 usb_mark_last_busy(data->udev);
2021         }
2022
2023         usb_free_urb(urb);
2024         return err;
2025 }
2026
2027 static int submit_or_queue_tx_urb(struct hci_dev *hdev, struct urb *urb)
2028 {
2029         struct btusb_data *data = hci_get_drvdata(hdev);
2030         unsigned long flags;
2031         bool suspending;
2032
2033         spin_lock_irqsave(&data->txlock, flags);
2034         suspending = test_bit(BTUSB_SUSPENDING, &data->flags);
2035         if (!suspending)
2036                 data->tx_in_flight++;
2037         spin_unlock_irqrestore(&data->txlock, flags);
2038
2039         if (!suspending)
2040                 return submit_tx_urb(hdev, urb);
2041
2042         usb_anchor_urb(urb, &data->deferred);
2043         schedule_work(&data->waker);
2044
2045         usb_free_urb(urb);
2046         return 0;
2047 }
2048
2049 static int btusb_send_frame(struct hci_dev *hdev, struct sk_buff *skb)
2050 {
2051         struct urb *urb;
2052
2053         BT_DBG("%s", hdev->name);
2054
2055         switch (hci_skb_pkt_type(skb)) {
2056         case HCI_COMMAND_PKT:
2057                 urb = alloc_ctrl_urb(hdev, skb);
2058                 if (IS_ERR(urb))
2059                         return PTR_ERR(urb);
2060
2061                 hdev->stat.cmd_tx++;
2062                 return submit_or_queue_tx_urb(hdev, urb);
2063
2064         case HCI_ACLDATA_PKT:
2065                 urb = alloc_bulk_urb(hdev, skb);
2066                 if (IS_ERR(urb))
2067                         return PTR_ERR(urb);
2068
2069                 hdev->stat.acl_tx++;
2070                 return submit_or_queue_tx_urb(hdev, urb);
2071
2072         case HCI_SCODATA_PKT:
2073                 if (hci_conn_num(hdev, SCO_LINK) < 1)
2074                         return -ENODEV;
2075
2076                 urb = alloc_isoc_urb(hdev, skb);
2077                 if (IS_ERR(urb))
2078                         return PTR_ERR(urb);
2079
2080                 hdev->stat.sco_tx++;
2081                 return submit_tx_urb(hdev, urb);
2082
2083         case HCI_ISODATA_PKT:
2084                 urb = alloc_bulk_urb(hdev, skb);
2085                 if (IS_ERR(urb))
2086                         return PTR_ERR(urb);
2087
2088                 return submit_or_queue_tx_urb(hdev, urb);
2089         }
2090
2091         return -EILSEQ;
2092 }
2093
2094 static void btusb_notify(struct hci_dev *hdev, unsigned int evt)
2095 {
2096         struct btusb_data *data = hci_get_drvdata(hdev);
2097
2098         BT_DBG("%s evt %d", hdev->name, evt);
2099
2100         if (hci_conn_num(hdev, SCO_LINK) != data->sco_num) {
2101                 data->sco_num = hci_conn_num(hdev, SCO_LINK);
2102                 data->air_mode = evt;
2103                 schedule_work(&data->work);
2104         }
2105 }
2106
2107 static inline int __set_isoc_interface(struct hci_dev *hdev, int altsetting)
2108 {
2109         struct btusb_data *data = hci_get_drvdata(hdev);
2110         struct usb_interface *intf = data->isoc;
2111         struct usb_endpoint_descriptor *ep_desc;
2112         int i, err;
2113
2114         if (!data->isoc)
2115                 return -ENODEV;
2116
2117         err = usb_set_interface(data->udev, data->isoc_ifnum, altsetting);
2118         if (err < 0) {
2119                 bt_dev_err(hdev, "setting interface failed (%d)", -err);
2120                 return err;
2121         }
2122
2123         data->isoc_altsetting = altsetting;
2124
2125         data->isoc_tx_ep = NULL;
2126         data->isoc_rx_ep = NULL;
2127
2128         for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
2129                 ep_desc = &intf->cur_altsetting->endpoint[i].desc;
2130
2131                 if (!data->isoc_tx_ep && usb_endpoint_is_isoc_out(ep_desc)) {
2132                         data->isoc_tx_ep = ep_desc;
2133                         continue;
2134                 }
2135
2136                 if (!data->isoc_rx_ep && usb_endpoint_is_isoc_in(ep_desc)) {
2137                         data->isoc_rx_ep = ep_desc;
2138                         continue;
2139                 }
2140         }
2141
2142         if (!data->isoc_tx_ep || !data->isoc_rx_ep) {
2143                 bt_dev_err(hdev, "invalid SCO descriptors");
2144                 return -ENODEV;
2145         }
2146
2147         return 0;
2148 }
2149
2150 static int btusb_switch_alt_setting(struct hci_dev *hdev, int new_alts)
2151 {
2152         struct btusb_data *data = hci_get_drvdata(hdev);
2153         int err;
2154
2155         if (data->isoc_altsetting != new_alts) {
2156                 unsigned long flags;
2157
2158                 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
2159                 usb_kill_anchored_urbs(&data->isoc_anchor);
2160
2161                 /* When isochronous alternate setting needs to be
2162                  * changed, because SCO connection has been added
2163                  * or removed, a packet fragment may be left in the
2164                  * reassembling state. This could lead to wrongly
2165                  * assembled fragments.
2166                  *
2167                  * Clear outstanding fragment when selecting a new
2168                  * alternate setting.
2169                  */
2170                 spin_lock_irqsave(&data->rxlock, flags);
2171                 dev_kfree_skb_irq(data->sco_skb);
2172                 data->sco_skb = NULL;
2173                 spin_unlock_irqrestore(&data->rxlock, flags);
2174
2175                 err = __set_isoc_interface(hdev, new_alts);
2176                 if (err < 0)
2177                         return err;
2178         }
2179
2180         if (!test_and_set_bit(BTUSB_ISOC_RUNNING, &data->flags)) {
2181                 if (btusb_submit_isoc_urb(hdev, GFP_KERNEL) < 0)
2182                         clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
2183                 else
2184                         btusb_submit_isoc_urb(hdev, GFP_KERNEL);
2185         }
2186
2187         return 0;
2188 }
2189
2190 static struct usb_host_interface *btusb_find_altsetting(struct btusb_data *data,
2191                                                         int alt)
2192 {
2193         struct usb_interface *intf = data->isoc;
2194         int i;
2195
2196         BT_DBG("Looking for Alt no :%d", alt);
2197
2198         if (!intf)
2199                 return NULL;
2200
2201         for (i = 0; i < intf->num_altsetting; i++) {
2202                 if (intf->altsetting[i].desc.bAlternateSetting == alt)
2203                         return &intf->altsetting[i];
2204         }
2205
2206         return NULL;
2207 }
2208
2209 static void btusb_work(struct work_struct *work)
2210 {
2211         struct btusb_data *data = container_of(work, struct btusb_data, work);
2212         struct hci_dev *hdev = data->hdev;
2213         int new_alts = 0;
2214         int err;
2215
2216         if (data->sco_num > 0) {
2217                 if (!test_bit(BTUSB_DID_ISO_RESUME, &data->flags)) {
2218                         err = usb_autopm_get_interface(data->isoc ? data->isoc : data->intf);
2219                         if (err < 0) {
2220                                 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
2221                                 usb_kill_anchored_urbs(&data->isoc_anchor);
2222                                 return;
2223                         }
2224
2225                         set_bit(BTUSB_DID_ISO_RESUME, &data->flags);
2226                 }
2227
2228                 if (data->air_mode == HCI_NOTIFY_ENABLE_SCO_CVSD) {
2229                         if (hdev->voice_setting & 0x0020) {
2230                                 static const int alts[3] = { 2, 4, 5 };
2231
2232                                 new_alts = alts[data->sco_num - 1];
2233                         } else {
2234                                 new_alts = data->sco_num;
2235                         }
2236                 } else if (data->air_mode == HCI_NOTIFY_ENABLE_SCO_TRANSP) {
2237                         /* Bluetooth USB spec recommends alt 6 (63 bytes), but
2238                          * many adapters do not support it.  Alt 1 appears to
2239                          * work for all adapters that do not have alt 6, and
2240                          * which work with WBS at all.  Some devices prefer
2241                          * alt 3 (HCI payload >= 60 Bytes let air packet
2242                          * data satisfy 60 bytes), requiring
2243                          * MTU >= 3 (packets) * 25 (size) - 3 (headers) = 72
2244                          * see also Core spec 5, vol 4, B 2.1.1 & Table 2.1.
2245                          */
2246                         if (btusb_find_altsetting(data, 6))
2247                                 new_alts = 6;
2248                         else if (btusb_find_altsetting(data, 3) &&
2249                                  hdev->sco_mtu >= 72 &&
2250                                  test_bit(BTUSB_USE_ALT3_FOR_WBS, &data->flags))
2251                                 new_alts = 3;
2252                         else
2253                                 new_alts = 1;
2254                 }
2255
2256                 if (btusb_switch_alt_setting(hdev, new_alts) < 0)
2257                         bt_dev_err(hdev, "set USB alt:(%d) failed!", new_alts);
2258         } else {
2259                 usb_kill_anchored_urbs(&data->isoc_anchor);
2260
2261                 if (test_and_clear_bit(BTUSB_ISOC_RUNNING, &data->flags))
2262                         __set_isoc_interface(hdev, 0);
2263
2264                 if (test_and_clear_bit(BTUSB_DID_ISO_RESUME, &data->flags))
2265                         usb_autopm_put_interface(data->isoc ? data->isoc : data->intf);
2266         }
2267 }
2268
2269 static void btusb_waker(struct work_struct *work)
2270 {
2271         struct btusb_data *data = container_of(work, struct btusb_data, waker);
2272         int err;
2273
2274         err = usb_autopm_get_interface(data->intf);
2275         if (err < 0)
2276                 return;
2277
2278         usb_autopm_put_interface(data->intf);
2279 }
2280
2281 static void btusb_rx_work(struct work_struct *work)
2282 {
2283         struct btusb_data *data = container_of(work, struct btusb_data,
2284                                                rx_work.work);
2285         struct sk_buff *skb;
2286
2287         /* Dequeue ACL data received during the interval */
2288         while ((skb = skb_dequeue(&data->acl_q)))
2289                 data->recv_acl(data->hdev, skb);
2290 }
2291
2292 static int btusb_setup_bcm92035(struct hci_dev *hdev)
2293 {
2294         struct sk_buff *skb;
2295         u8 val = 0x00;
2296
2297         BT_DBG("%s", hdev->name);
2298
2299         skb = __hci_cmd_sync(hdev, 0xfc3b, 1, &val, HCI_INIT_TIMEOUT);
2300         if (IS_ERR(skb))
2301                 bt_dev_err(hdev, "BCM92035 command failed (%ld)", PTR_ERR(skb));
2302         else
2303                 kfree_skb(skb);
2304
2305         return 0;
2306 }
2307
2308 static int btusb_setup_csr(struct hci_dev *hdev)
2309 {
2310         struct btusb_data *data = hci_get_drvdata(hdev);
2311         u16 bcdDevice = le16_to_cpu(data->udev->descriptor.bcdDevice);
2312         struct hci_rp_read_local_version *rp;
2313         struct sk_buff *skb;
2314         bool is_fake = false;
2315         int ret;
2316
2317         BT_DBG("%s", hdev->name);
2318
2319         skb = __hci_cmd_sync(hdev, HCI_OP_READ_LOCAL_VERSION, 0, NULL,
2320                              HCI_INIT_TIMEOUT);
2321         if (IS_ERR(skb)) {
2322                 int err = PTR_ERR(skb);
2323                 bt_dev_err(hdev, "CSR: Local version failed (%d)", err);
2324                 return err;
2325         }
2326
2327         rp = skb_pull_data(skb, sizeof(*rp));
2328         if (!rp) {
2329                 bt_dev_err(hdev, "CSR: Local version length mismatch");
2330                 kfree_skb(skb);
2331                 return -EIO;
2332         }
2333
2334         bt_dev_info(hdev, "CSR: Setting up dongle with HCI ver=%u rev=%04x",
2335                     rp->hci_ver, le16_to_cpu(rp->hci_rev));
2336
2337         bt_dev_info(hdev, "LMP ver=%u subver=%04x; manufacturer=%u",
2338                     rp->lmp_ver, le16_to_cpu(rp->lmp_subver),
2339                     le16_to_cpu(rp->manufacturer));
2340
2341         /* Detect a wide host of Chinese controllers that aren't CSR.
2342          *
2343          * Known fake bcdDevices: 0x0100, 0x0134, 0x1915, 0x2520, 0x7558, 0x8891
2344          *
2345          * The main thing they have in common is that these are really popular low-cost
2346          * options that support newer Bluetooth versions but rely on heavy VID/PID
2347          * squatting of this poor old Bluetooth 1.1 device. Even sold as such.
2348          *
2349          * We detect actual CSR devices by checking that the HCI manufacturer code
2350          * is Cambridge Silicon Radio (10) and ensuring that LMP sub-version and
2351          * HCI rev values always match. As they both store the firmware number.
2352          */
2353         if (le16_to_cpu(rp->manufacturer) != 10 ||
2354             le16_to_cpu(rp->hci_rev) != le16_to_cpu(rp->lmp_subver))
2355                 is_fake = true;
2356
2357         /* Known legit CSR firmware build numbers and their supported BT versions:
2358          * - 1.1 (0x1) -> 0x0073, 0x020d, 0x033c, 0x034e
2359          * - 1.2 (0x2) ->                 0x04d9, 0x0529
2360          * - 2.0 (0x3) ->         0x07a6, 0x07ad, 0x0c5c
2361          * - 2.1 (0x4) ->         0x149c, 0x1735, 0x1899 (0x1899 is a BlueCore4-External)
2362          * - 4.0 (0x6) ->         0x1d86, 0x2031, 0x22bb
2363          *
2364          * e.g. Real CSR dongles with LMP subversion 0x73 are old enough that
2365          *      support BT 1.1 only; so it's a dead giveaway when some
2366          *      third-party BT 4.0 dongle reuses it.
2367          */
2368         else if (le16_to_cpu(rp->lmp_subver) <= 0x034e &&
2369                  rp->hci_ver > BLUETOOTH_VER_1_1)
2370                 is_fake = true;
2371
2372         else if (le16_to_cpu(rp->lmp_subver) <= 0x0529 &&
2373                  rp->hci_ver > BLUETOOTH_VER_1_2)
2374                 is_fake = true;
2375
2376         else if (le16_to_cpu(rp->lmp_subver) <= 0x0c5c &&
2377                  rp->hci_ver > BLUETOOTH_VER_2_0)
2378                 is_fake = true;
2379
2380         else if (le16_to_cpu(rp->lmp_subver) <= 0x1899 &&
2381                  rp->hci_ver > BLUETOOTH_VER_2_1)
2382                 is_fake = true;
2383
2384         else if (le16_to_cpu(rp->lmp_subver) <= 0x22bb &&
2385                  rp->hci_ver > BLUETOOTH_VER_4_0)
2386                 is_fake = true;
2387
2388         /* Other clones which beat all the above checks */
2389         else if (bcdDevice == 0x0134 &&
2390                  le16_to_cpu(rp->lmp_subver) == 0x0c5c &&
2391                  rp->hci_ver == BLUETOOTH_VER_2_0)
2392                 is_fake = true;
2393
2394         if (is_fake) {
2395                 bt_dev_warn(hdev, "CSR: Unbranded CSR clone detected; adding workarounds and force-suspending once...");
2396
2397                 /* Generally these clones have big discrepancies between
2398                  * advertised features and what's actually supported.
2399                  * Probably will need to be expanded in the future;
2400                  * without these the controller will lock up.
2401                  */
2402                 set_bit(HCI_QUIRK_BROKEN_STORED_LINK_KEY, &hdev->quirks);
2403                 set_bit(HCI_QUIRK_BROKEN_ERR_DATA_REPORTING, &hdev->quirks);
2404                 set_bit(HCI_QUIRK_BROKEN_FILTER_CLEAR_ALL, &hdev->quirks);
2405                 set_bit(HCI_QUIRK_NO_SUSPEND_NOTIFIER, &hdev->quirks);
2406
2407                 /* Clear the reset quirk since this is not an actual
2408                  * early Bluetooth 1.1 device from CSR.
2409                  */
2410                 clear_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
2411                 clear_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks);
2412
2413                 /*
2414                  * Special workaround for these BT 4.0 chip clones, and potentially more:
2415                  *
2416                  * - 0x0134: a Barrot 8041a02                 (HCI rev: 0x0810 sub: 0x1012)
2417                  * - 0x7558: IC markings FR3191AHAL 749H15143 (HCI rev/sub-version: 0x0709)
2418                  *
2419                  * These controllers are really messed-up.
2420                  *
2421                  * 1. Their bulk RX endpoint will never report any data unless
2422                  *    the device was suspended at least once (yes, really).
2423                  * 2. They will not wakeup when autosuspended and receiving data
2424                  *    on their bulk RX endpoint from e.g. a keyboard or mouse
2425                  *    (IOW remote-wakeup support is broken for the bulk endpoint).
2426                  *
2427                  * To fix 1. enable runtime-suspend, force-suspend the
2428                  * HCI and then wake-it up by disabling runtime-suspend.
2429                  *
2430                  * To fix 2. clear the HCI's can_wake flag, this way the HCI
2431                  * will still be autosuspended when it is not open.
2432                  *
2433                  * --
2434                  *
2435                  * Because these are widespread problems we prefer generic solutions; so
2436                  * apply this initialization quirk to every controller that gets here,
2437                  * it should be harmless. The alternative is to not work at all.
2438                  */
2439                 pm_runtime_allow(&data->udev->dev);
2440
2441                 ret = pm_runtime_suspend(&data->udev->dev);
2442                 if (ret >= 0)
2443                         msleep(200);
2444                 else
2445                         bt_dev_warn(hdev, "CSR: Couldn't suspend the device for our Barrot 8041a02 receive-issue workaround");
2446
2447                 pm_runtime_forbid(&data->udev->dev);
2448
2449                 device_set_wakeup_capable(&data->udev->dev, false);
2450
2451                 /* Re-enable autosuspend if this was requested */
2452                 if (enable_autosuspend)
2453                         usb_enable_autosuspend(data->udev);
2454         }
2455
2456         kfree_skb(skb);
2457
2458         return 0;
2459 }
2460
2461 static int inject_cmd_complete(struct hci_dev *hdev, __u16 opcode)
2462 {
2463         struct sk_buff *skb;
2464         struct hci_event_hdr *hdr;
2465         struct hci_ev_cmd_complete *evt;
2466
2467         skb = bt_skb_alloc(sizeof(*hdr) + sizeof(*evt) + 1, GFP_KERNEL);
2468         if (!skb)
2469                 return -ENOMEM;
2470
2471         hdr = skb_put(skb, sizeof(*hdr));
2472         hdr->evt = HCI_EV_CMD_COMPLETE;
2473         hdr->plen = sizeof(*evt) + 1;
2474
2475         evt = skb_put(skb, sizeof(*evt));
2476         evt->ncmd = 0x01;
2477         evt->opcode = cpu_to_le16(opcode);
2478
2479         skb_put_u8(skb, 0x00);
2480
2481         hci_skb_pkt_type(skb) = HCI_EVENT_PKT;
2482
2483         return hci_recv_frame(hdev, skb);
2484 }
2485
2486 static int btusb_recv_bulk_intel(struct btusb_data *data, void *buffer,
2487                                  int count)
2488 {
2489         struct hci_dev *hdev = data->hdev;
2490
2491         /* When the device is in bootloader mode, then it can send
2492          * events via the bulk endpoint. These events are treated the
2493          * same way as the ones received from the interrupt endpoint.
2494          */
2495         if (btintel_test_flag(hdev, INTEL_BOOTLOADER))
2496                 return btusb_recv_intr(data, buffer, count);
2497
2498         return btusb_recv_bulk(data, buffer, count);
2499 }
2500
2501 static int btusb_send_frame_intel(struct hci_dev *hdev, struct sk_buff *skb)
2502 {
2503         struct urb *urb;
2504
2505         BT_DBG("%s", hdev->name);
2506
2507         switch (hci_skb_pkt_type(skb)) {
2508         case HCI_COMMAND_PKT:
2509                 if (btintel_test_flag(hdev, INTEL_BOOTLOADER)) {
2510                         struct hci_command_hdr *cmd = (void *)skb->data;
2511                         __u16 opcode = le16_to_cpu(cmd->opcode);
2512
2513                         /* When in bootloader mode and the command 0xfc09
2514                          * is received, it needs to be send down the
2515                          * bulk endpoint. So allocate a bulk URB instead.
2516                          */
2517                         if (opcode == 0xfc09)
2518                                 urb = alloc_bulk_urb(hdev, skb);
2519                         else
2520                                 urb = alloc_ctrl_urb(hdev, skb);
2521
2522                         /* When the 0xfc01 command is issued to boot into
2523                          * the operational firmware, it will actually not
2524                          * send a command complete event. To keep the flow
2525                          * control working inject that event here.
2526                          */
2527                         if (opcode == 0xfc01)
2528                                 inject_cmd_complete(hdev, opcode);
2529                 } else {
2530                         urb = alloc_ctrl_urb(hdev, skb);
2531                 }
2532                 if (IS_ERR(urb))
2533                         return PTR_ERR(urb);
2534
2535                 hdev->stat.cmd_tx++;
2536                 return submit_or_queue_tx_urb(hdev, urb);
2537
2538         case HCI_ACLDATA_PKT:
2539                 urb = alloc_bulk_urb(hdev, skb);
2540                 if (IS_ERR(urb))
2541                         return PTR_ERR(urb);
2542
2543                 hdev->stat.acl_tx++;
2544                 return submit_or_queue_tx_urb(hdev, urb);
2545
2546         case HCI_SCODATA_PKT:
2547                 if (hci_conn_num(hdev, SCO_LINK) < 1)
2548                         return -ENODEV;
2549
2550                 urb = alloc_isoc_urb(hdev, skb);
2551                 if (IS_ERR(urb))
2552                         return PTR_ERR(urb);
2553
2554                 hdev->stat.sco_tx++;
2555                 return submit_tx_urb(hdev, urb);
2556
2557         case HCI_ISODATA_PKT:
2558                 urb = alloc_bulk_urb(hdev, skb);
2559                 if (IS_ERR(urb))
2560                         return PTR_ERR(urb);
2561
2562                 return submit_or_queue_tx_urb(hdev, urb);
2563         }
2564
2565         return -EILSEQ;
2566 }
2567
2568 static int btusb_setup_realtek(struct hci_dev *hdev)
2569 {
2570         struct btusb_data *data = hci_get_drvdata(hdev);
2571         int ret;
2572
2573         ret = btrtl_setup_realtek(hdev);
2574
2575         if (btrealtek_test_flag(data->hdev, REALTEK_ALT6_CONTINUOUS_TX_CHIP))
2576                 set_bit(BTUSB_ALT6_CONTINUOUS_TX, &data->flags);
2577
2578         return ret;
2579 }
2580
2581 static int btusb_recv_event_realtek(struct hci_dev *hdev, struct sk_buff *skb)
2582 {
2583         if (skb->data[0] == HCI_VENDOR_PKT && skb->data[2] == RTK_SUB_EVENT_CODE_COREDUMP) {
2584                 struct rtk_dev_coredump_hdr hdr = {
2585                         .code = RTK_DEVCOREDUMP_CODE_MEMDUMP,
2586                 };
2587
2588                 bt_dev_dbg(hdev, "RTL: received coredump vendor evt, len %u",
2589                         skb->len);
2590
2591                 btusb_rtl_alloc_devcoredump(hdev, &hdr, skb->data, skb->len);
2592                 kfree_skb(skb);
2593
2594                 return 0;
2595         }
2596
2597         return hci_recv_frame(hdev, skb);
2598 }
2599
2600 static void btusb_mtk_claim_iso_intf(struct btusb_data *data)
2601 {
2602         struct btmtk_data *btmtk_data = hci_get_priv(data->hdev);
2603         int err;
2604
2605         err = usb_driver_claim_interface(&btusb_driver,
2606                                          btmtk_data->isopkt_intf, data);
2607         if (err < 0) {
2608                 btmtk_data->isopkt_intf = NULL;
2609                 bt_dev_err(data->hdev, "Failed to claim iso interface");
2610                 return;
2611         }
2612
2613         set_bit(BTMTK_ISOPKT_OVER_INTR, &btmtk_data->flags);
2614 }
2615
2616 static void btusb_mtk_release_iso_intf(struct btusb_data *data)
2617 {
2618         struct btmtk_data *btmtk_data = hci_get_priv(data->hdev);
2619
2620         if (btmtk_data->isopkt_intf) {
2621                 usb_kill_anchored_urbs(&btmtk_data->isopkt_anchor);
2622                 clear_bit(BTMTK_ISOPKT_RUNNING, &btmtk_data->flags);
2623
2624                 dev_kfree_skb_irq(btmtk_data->isopkt_skb);
2625                 btmtk_data->isopkt_skb = NULL;
2626                 usb_set_intfdata(btmtk_data->isopkt_intf, NULL);
2627                 usb_driver_release_interface(&btusb_driver,
2628                                              btmtk_data->isopkt_intf);
2629         }
2630
2631         clear_bit(BTMTK_ISOPKT_OVER_INTR, &btmtk_data->flags);
2632 }
2633
2634 static int btusb_mtk_reset(struct hci_dev *hdev, void *rst_data)
2635 {
2636         struct btusb_data *data = hci_get_drvdata(hdev);
2637         struct btmtk_data *btmtk_data = hci_get_priv(hdev);
2638         int err;
2639
2640         /* It's MediaTek specific bluetooth reset mechanism via USB */
2641         if (test_and_set_bit(BTMTK_HW_RESET_ACTIVE, &btmtk_data->flags)) {
2642                 bt_dev_err(hdev, "last reset failed? Not resetting again");
2643                 return -EBUSY;
2644         }
2645
2646         err = usb_autopm_get_interface(data->intf);
2647         if (err < 0)
2648                 return err;
2649
2650         if (test_bit(BTMTK_ISOPKT_RUNNING, &btmtk_data->flags))
2651                 btusb_mtk_release_iso_intf(data);
2652
2653         btusb_stop_traffic(data);
2654         usb_kill_anchored_urbs(&data->tx_anchor);
2655
2656         err = btmtk_usb_subsys_reset(hdev, btmtk_data->dev_id);
2657
2658         usb_queue_reset_device(data->intf);
2659         clear_bit(BTMTK_HW_RESET_ACTIVE, &btmtk_data->flags);
2660
2661         return err;
2662 }
2663
2664 static int btusb_send_frame_mtk(struct hci_dev *hdev, struct sk_buff *skb)
2665 {
2666         struct urb *urb;
2667
2668         BT_DBG("%s", hdev->name);
2669
2670         if (hci_skb_pkt_type(skb) == HCI_ISODATA_PKT) {
2671                 urb = alloc_mtk_intr_urb(hdev, skb, btusb_tx_complete);
2672                 if (IS_ERR(urb))
2673                         return PTR_ERR(urb);
2674
2675                 return submit_or_queue_tx_urb(hdev, urb);
2676         } else {
2677                 return btusb_send_frame(hdev, skb);
2678         }
2679 }
2680
2681 static int btusb_mtk_setup(struct hci_dev *hdev)
2682 {
2683         struct btusb_data *data = hci_get_drvdata(hdev);
2684         struct btmtk_data *btmtk_data = hci_get_priv(hdev);
2685
2686         /* MediaTek WMT vendor cmd requiring below USB resources to
2687          * complete the handshake.
2688          */
2689         btmtk_data->drv_name = btusb_driver.name;
2690         btmtk_data->intf = data->intf;
2691         btmtk_data->udev = data->udev;
2692         btmtk_data->ctrl_anchor = &data->ctrl_anchor;
2693         btmtk_data->reset_sync = btusb_mtk_reset;
2694
2695         /* Claim ISO data interface and endpoint */
2696         btmtk_data->isopkt_intf = usb_ifnum_to_if(data->udev, MTK_ISO_IFNUM);
2697         if (btmtk_data->isopkt_intf)
2698                 btusb_mtk_claim_iso_intf(data);
2699
2700         return btmtk_usb_setup(hdev);
2701 }
2702
2703 static int btusb_mtk_shutdown(struct hci_dev *hdev)
2704 {
2705         struct btusb_data *data = hci_get_drvdata(hdev);
2706         struct btmtk_data *btmtk_data = hci_get_priv(hdev);
2707
2708         if (test_bit(BTMTK_ISOPKT_RUNNING, &btmtk_data->flags))
2709                 btusb_mtk_release_iso_intf(data);
2710
2711         return btmtk_usb_shutdown(hdev);
2712 }
2713
2714 #ifdef CONFIG_PM
2715 /* Configure an out-of-band gpio as wake-up pin, if specified in device tree */
2716 static int marvell_config_oob_wake(struct hci_dev *hdev)
2717 {
2718         struct sk_buff *skb;
2719         struct btusb_data *data = hci_get_drvdata(hdev);
2720         struct device *dev = &data->udev->dev;
2721         u16 pin, gap, opcode;
2722         int ret;
2723         u8 cmd[5];
2724
2725         /* Move on if no wakeup pin specified */
2726         if (of_property_read_u16(dev->of_node, "marvell,wakeup-pin", &pin) ||
2727             of_property_read_u16(dev->of_node, "marvell,wakeup-gap-ms", &gap))
2728                 return 0;
2729
2730         /* Vendor specific command to configure a GPIO as wake-up pin */
2731         opcode = hci_opcode_pack(0x3F, 0x59);
2732         cmd[0] = opcode & 0xFF;
2733         cmd[1] = opcode >> 8;
2734         cmd[2] = 2; /* length of parameters that follow */
2735         cmd[3] = pin;
2736         cmd[4] = gap; /* time in ms, for which wakeup pin should be asserted */
2737
2738         skb = bt_skb_alloc(sizeof(cmd), GFP_KERNEL);
2739         if (!skb) {
2740                 bt_dev_err(hdev, "%s: No memory", __func__);
2741                 return -ENOMEM;
2742         }
2743
2744         skb_put_data(skb, cmd, sizeof(cmd));
2745         hci_skb_pkt_type(skb) = HCI_COMMAND_PKT;
2746
2747         ret = btusb_send_frame(hdev, skb);
2748         if (ret) {
2749                 bt_dev_err(hdev, "%s: configuration failed", __func__);
2750                 kfree_skb(skb);
2751                 return ret;
2752         }
2753
2754         return 0;
2755 }
2756 #endif
2757
2758 static int btusb_set_bdaddr_marvell(struct hci_dev *hdev,
2759                                     const bdaddr_t *bdaddr)
2760 {
2761         struct sk_buff *skb;
2762         u8 buf[8];
2763         long ret;
2764
2765         buf[0] = 0xfe;
2766         buf[1] = sizeof(bdaddr_t);
2767         memcpy(buf + 2, bdaddr, sizeof(bdaddr_t));
2768
2769         skb = __hci_cmd_sync(hdev, 0xfc22, sizeof(buf), buf, HCI_INIT_TIMEOUT);
2770         if (IS_ERR(skb)) {
2771                 ret = PTR_ERR(skb);
2772                 bt_dev_err(hdev, "changing Marvell device address failed (%ld)",
2773                            ret);
2774                 return ret;
2775         }
2776         kfree_skb(skb);
2777
2778         return 0;
2779 }
2780
2781 static int btusb_set_bdaddr_ath3012(struct hci_dev *hdev,
2782                                     const bdaddr_t *bdaddr)
2783 {
2784         struct sk_buff *skb;
2785         u8 buf[10];
2786         long ret;
2787
2788         buf[0] = 0x01;
2789         buf[1] = 0x01;
2790         buf[2] = 0x00;
2791         buf[3] = sizeof(bdaddr_t);
2792         memcpy(buf + 4, bdaddr, sizeof(bdaddr_t));
2793
2794         skb = __hci_cmd_sync(hdev, 0xfc0b, sizeof(buf), buf, HCI_INIT_TIMEOUT);
2795         if (IS_ERR(skb)) {
2796                 ret = PTR_ERR(skb);
2797                 bt_dev_err(hdev, "Change address command failed (%ld)", ret);
2798                 return ret;
2799         }
2800         kfree_skb(skb);
2801
2802         return 0;
2803 }
2804
2805 static int btusb_set_bdaddr_wcn6855(struct hci_dev *hdev,
2806                                 const bdaddr_t *bdaddr)
2807 {
2808         struct sk_buff *skb;
2809         u8 buf[6];
2810         long ret;
2811
2812         memcpy(buf, bdaddr, sizeof(bdaddr_t));
2813
2814         skb = __hci_cmd_sync_ev(hdev, 0xfc14, sizeof(buf), buf,
2815                                 HCI_EV_CMD_COMPLETE, HCI_INIT_TIMEOUT);
2816         if (IS_ERR(skb)) {
2817                 ret = PTR_ERR(skb);
2818                 bt_dev_err(hdev, "Change address command failed (%ld)", ret);
2819                 return ret;
2820         }
2821         kfree_skb(skb);
2822
2823         return 0;
2824 }
2825
2826 #define QCA_MEMDUMP_ACL_HANDLE 0x2EDD
2827 #define QCA_MEMDUMP_SIZE_MAX  0x100000
2828 #define QCA_MEMDUMP_VSE_CLASS 0x01
2829 #define QCA_MEMDUMP_MSG_TYPE 0x08
2830 #define QCA_MEMDUMP_PKT_SIZE 248
2831 #define QCA_LAST_SEQUENCE_NUM 0xffff
2832
2833 struct qca_dump_hdr {
2834         u8 vse_class;
2835         u8 msg_type;
2836         __le16 seqno;
2837         u8 reserved;
2838         union {
2839                 u8 data[0];
2840                 struct {
2841                         __le32 ram_dump_size;
2842                         u8 data0[0];
2843                 } __packed;
2844         };
2845 } __packed;
2846
2847
2848 static void btusb_dump_hdr_qca(struct hci_dev *hdev, struct sk_buff *skb)
2849 {
2850         char buf[128];
2851         struct btusb_data *btdata = hci_get_drvdata(hdev);
2852
2853         snprintf(buf, sizeof(buf), "Controller Name: 0x%x\n",
2854                         btdata->qca_dump.controller_id);
2855         skb_put_data(skb, buf, strlen(buf));
2856
2857         snprintf(buf, sizeof(buf), "Firmware Version: 0x%x\n",
2858                         btdata->qca_dump.fw_version);
2859         skb_put_data(skb, buf, strlen(buf));
2860
2861         snprintf(buf, sizeof(buf), "Driver: %s\nVendor: qca\n",
2862                         btusb_driver.name);
2863         skb_put_data(skb, buf, strlen(buf));
2864
2865         snprintf(buf, sizeof(buf), "VID: 0x%x\nPID:0x%x\n",
2866                         btdata->qca_dump.id_vendor, btdata->qca_dump.id_product);
2867         skb_put_data(skb, buf, strlen(buf));
2868
2869         snprintf(buf, sizeof(buf), "Lmp Subversion: 0x%x\n",
2870                         hdev->lmp_subver);
2871         skb_put_data(skb, buf, strlen(buf));
2872 }
2873
2874 static void btusb_coredump_qca(struct hci_dev *hdev)
2875 {
2876         int err;
2877         static const u8 param[] = { 0x26 };
2878
2879         err = __hci_cmd_send(hdev, 0xfc0c, 1, param);
2880         if (err < 0)
2881                 bt_dev_err(hdev, "%s: triggle crash failed (%d)", __func__, err);
2882 }
2883
2884 /*
2885  * ==0: not a dump pkt.
2886  * < 0: fails to handle a dump pkt
2887  * > 0: otherwise.
2888  */
2889 static int handle_dump_pkt_qca(struct hci_dev *hdev, struct sk_buff *skb)
2890 {
2891         int ret = 1;
2892         u8 pkt_type;
2893         u8 *sk_ptr;
2894         unsigned int sk_len;
2895         u16 seqno;
2896         u32 dump_size;
2897
2898         struct hci_event_hdr *event_hdr;
2899         struct hci_acl_hdr *acl_hdr;
2900         struct qca_dump_hdr *dump_hdr;
2901         struct btusb_data *btdata = hci_get_drvdata(hdev);
2902         struct usb_device *udev = btdata->udev;
2903
2904         pkt_type = hci_skb_pkt_type(skb);
2905         sk_ptr = skb->data;
2906         sk_len = skb->len;
2907
2908         if (pkt_type == HCI_ACLDATA_PKT) {
2909                 acl_hdr = hci_acl_hdr(skb);
2910                 if (le16_to_cpu(acl_hdr->handle) != QCA_MEMDUMP_ACL_HANDLE)
2911                         return 0;
2912                 sk_ptr += HCI_ACL_HDR_SIZE;
2913                 sk_len -= HCI_ACL_HDR_SIZE;
2914                 event_hdr = (struct hci_event_hdr *)sk_ptr;
2915         } else {
2916                 event_hdr = hci_event_hdr(skb);
2917         }
2918
2919         if ((event_hdr->evt != HCI_VENDOR_PKT)
2920                 || (event_hdr->plen != (sk_len - HCI_EVENT_HDR_SIZE)))
2921                 return 0;
2922
2923         sk_ptr += HCI_EVENT_HDR_SIZE;
2924         sk_len -= HCI_EVENT_HDR_SIZE;
2925
2926         dump_hdr = (struct qca_dump_hdr *)sk_ptr;
2927         if ((sk_len < offsetof(struct qca_dump_hdr, data))
2928                 || (dump_hdr->vse_class != QCA_MEMDUMP_VSE_CLASS)
2929             || (dump_hdr->msg_type != QCA_MEMDUMP_MSG_TYPE))
2930                 return 0;
2931
2932         /*it is dump pkt now*/
2933         seqno = le16_to_cpu(dump_hdr->seqno);
2934         if (seqno == 0) {
2935                 set_bit(BTUSB_HW_SSR_ACTIVE, &btdata->flags);
2936                 dump_size = le32_to_cpu(dump_hdr->ram_dump_size);
2937                 if (!dump_size || (dump_size > QCA_MEMDUMP_SIZE_MAX)) {
2938                         ret = -EILSEQ;
2939                         bt_dev_err(hdev, "Invalid memdump size(%u)",
2940                                    dump_size);
2941                         goto out;
2942                 }
2943
2944                 ret = hci_devcd_init(hdev, dump_size);
2945                 if (ret < 0) {
2946                         bt_dev_err(hdev, "memdump init error(%d)", ret);
2947                         goto out;
2948                 }
2949
2950                 btdata->qca_dump.ram_dump_size = dump_size;
2951                 btdata->qca_dump.ram_dump_seqno = 0;
2952                 sk_ptr += offsetof(struct qca_dump_hdr, data0);
2953                 sk_len -= offsetof(struct qca_dump_hdr, data0);
2954
2955                 usb_disable_autosuspend(udev);
2956                 bt_dev_info(hdev, "%s memdump size(%u)\n",
2957                             (pkt_type == HCI_ACLDATA_PKT) ? "ACL" : "event",
2958                             dump_size);
2959         } else {
2960                 sk_ptr += offsetof(struct qca_dump_hdr, data);
2961                 sk_len -= offsetof(struct qca_dump_hdr, data);
2962         }
2963
2964         if (!btdata->qca_dump.ram_dump_size) {
2965                 ret = -EINVAL;
2966                 bt_dev_err(hdev, "memdump is not active");
2967                 goto out;
2968         }
2969
2970         if ((seqno > btdata->qca_dump.ram_dump_seqno + 1) && (seqno != QCA_LAST_SEQUENCE_NUM)) {
2971                 dump_size = QCA_MEMDUMP_PKT_SIZE * (seqno - btdata->qca_dump.ram_dump_seqno - 1);
2972                 hci_devcd_append_pattern(hdev, 0x0, dump_size);
2973                 bt_dev_err(hdev,
2974                            "expected memdump seqno(%u) is not received(%u)\n",
2975                            btdata->qca_dump.ram_dump_seqno, seqno);
2976                 btdata->qca_dump.ram_dump_seqno = seqno;
2977                 kfree_skb(skb);
2978                 return ret;
2979         }
2980
2981         skb_pull(skb, skb->len - sk_len);
2982         hci_devcd_append(hdev, skb);
2983         btdata->qca_dump.ram_dump_seqno++;
2984         if (seqno == QCA_LAST_SEQUENCE_NUM) {
2985                 bt_dev_info(hdev,
2986                                 "memdump done: pkts(%u), total(%u)\n",
2987                                 btdata->qca_dump.ram_dump_seqno, btdata->qca_dump.ram_dump_size);
2988
2989                 hci_devcd_complete(hdev);
2990                 goto out;
2991         }
2992         return ret;
2993
2994 out:
2995         if (btdata->qca_dump.ram_dump_size)
2996                 usb_enable_autosuspend(udev);
2997         btdata->qca_dump.ram_dump_size = 0;
2998         btdata->qca_dump.ram_dump_seqno = 0;
2999         clear_bit(BTUSB_HW_SSR_ACTIVE, &btdata->flags);
3000
3001         if (ret < 0)
3002                 kfree_skb(skb);
3003         return ret;
3004 }
3005
3006 static int btusb_recv_acl_qca(struct hci_dev *hdev, struct sk_buff *skb)
3007 {
3008         if (handle_dump_pkt_qca(hdev, skb))
3009                 return 0;
3010         return hci_recv_frame(hdev, skb);
3011 }
3012
3013 static int btusb_recv_evt_qca(struct hci_dev *hdev, struct sk_buff *skb)
3014 {
3015         if (handle_dump_pkt_qca(hdev, skb))
3016                 return 0;
3017         return hci_recv_frame(hdev, skb);
3018 }
3019
3020
3021 #define QCA_DFU_PACKET_LEN      4096
3022
3023 #define QCA_GET_TARGET_VERSION  0x09
3024 #define QCA_CHECK_STATUS        0x05
3025 #define QCA_DFU_DOWNLOAD        0x01
3026
3027 #define QCA_SYSCFG_UPDATED      0x40
3028 #define QCA_PATCH_UPDATED       0x80
3029 #define QCA_DFU_TIMEOUT         3000
3030 #define QCA_FLAG_MULTI_NVM      0x80
3031 #define QCA_BT_RESET_WAIT_MS    100
3032
3033 #define WCN6855_2_0_RAM_VERSION_GF 0x400c1200
3034 #define WCN6855_2_1_RAM_VERSION_GF 0x400c1211
3035
3036 struct qca_version {
3037         __le32  rom_version;
3038         __le32  patch_version;
3039         __le32  ram_version;
3040         __u8    chip_id;
3041         __u8    platform_id;
3042         __le16  flag;
3043         __u8    reserved[4];
3044 } __packed;
3045
3046 struct qca_rampatch_version {
3047         __le16  rom_version_high;
3048         __le16  rom_version_low;
3049         __le16  patch_version;
3050 } __packed;
3051
3052 struct qca_device_info {
3053         u32     rom_version;
3054         u8      rampatch_hdr;   /* length of header in rampatch */
3055         u8      nvm_hdr;        /* length of header in NVM */
3056         u8      ver_offset;     /* offset of version structure in rampatch */
3057 };
3058
3059 static const struct qca_device_info qca_devices_table[] = {
3060         { 0x00000100, 20, 4,  8 }, /* Rome 1.0 */
3061         { 0x00000101, 20, 4,  8 }, /* Rome 1.1 */
3062         { 0x00000200, 28, 4, 16 }, /* Rome 2.0 */
3063         { 0x00000201, 28, 4, 16 }, /* Rome 2.1 */
3064         { 0x00000300, 28, 4, 16 }, /* Rome 3.0 */
3065         { 0x00000302, 28, 4, 16 }, /* Rome 3.2 */
3066         { 0x00130100, 40, 4, 16 }, /* WCN6855 1.0 */
3067         { 0x00130200, 40, 4, 16 }, /* WCN6855 2.0 */
3068         { 0x00130201, 40, 4, 16 }, /* WCN6855 2.1 */
3069         { 0x00190200, 40, 4, 16 }, /* WCN785x 2.0 */
3070 };
3071
3072 static int btusb_qca_send_vendor_req(struct usb_device *udev, u8 request,
3073                                      void *data, u16 size)
3074 {
3075         int pipe, err;
3076         u8 *buf;
3077
3078         buf = kmalloc(size, GFP_KERNEL);
3079         if (!buf)
3080                 return -ENOMEM;
3081
3082         /* Found some of USB hosts have IOT issues with ours so that we should
3083          * not wait until HCI layer is ready.
3084          */
3085         pipe = usb_rcvctrlpipe(udev, 0);
3086         err = usb_control_msg(udev, pipe, request, USB_TYPE_VENDOR | USB_DIR_IN,
3087                               0, 0, buf, size, USB_CTRL_GET_TIMEOUT);
3088         if (err < 0) {
3089                 dev_err(&udev->dev, "Failed to access otp area (%d)", err);
3090                 goto done;
3091         }
3092
3093         memcpy(data, buf, size);
3094
3095 done:
3096         kfree(buf);
3097
3098         return err;
3099 }
3100
3101 static int btusb_setup_qca_download_fw(struct hci_dev *hdev,
3102                                        const struct firmware *firmware,
3103                                        size_t hdr_size)
3104 {
3105         struct btusb_data *btdata = hci_get_drvdata(hdev);
3106         struct usb_device *udev = btdata->udev;
3107         size_t count, size, sent = 0;
3108         int pipe, len, err;
3109         u8 *buf;
3110
3111         buf = kmalloc(QCA_DFU_PACKET_LEN, GFP_KERNEL);
3112         if (!buf)
3113                 return -ENOMEM;
3114
3115         count = firmware->size;
3116
3117         size = min_t(size_t, count, hdr_size);
3118         memcpy(buf, firmware->data, size);
3119
3120         /* USB patches should go down to controller through USB path
3121          * because binary format fits to go down through USB channel.
3122          * USB control path is for patching headers and USB bulk is for
3123          * patch body.
3124          */
3125         pipe = usb_sndctrlpipe(udev, 0);
3126         err = usb_control_msg(udev, pipe, QCA_DFU_DOWNLOAD, USB_TYPE_VENDOR,
3127                               0, 0, buf, size, USB_CTRL_SET_TIMEOUT);
3128         if (err < 0) {
3129                 bt_dev_err(hdev, "Failed to send headers (%d)", err);
3130                 goto done;
3131         }
3132
3133         sent += size;
3134         count -= size;
3135
3136         /* ep2 need time to switch from function acl to function dfu,
3137          * so we add 20ms delay here.
3138          */
3139         msleep(20);
3140
3141         while (count) {
3142                 size = min_t(size_t, count, QCA_DFU_PACKET_LEN);
3143
3144                 memcpy(buf, firmware->data + sent, size);
3145
3146                 pipe = usb_sndbulkpipe(udev, 0x02);
3147                 err = usb_bulk_msg(udev, pipe, buf, size, &len,
3148                                    QCA_DFU_TIMEOUT);
3149                 if (err < 0) {
3150                         bt_dev_err(hdev, "Failed to send body at %zd of %zd (%d)",
3151                                    sent, firmware->size, err);
3152                         break;
3153                 }
3154
3155                 if (size != len) {
3156                         bt_dev_err(hdev, "Failed to get bulk buffer");
3157                         err = -EILSEQ;
3158                         break;
3159                 }
3160
3161                 sent  += size;
3162                 count -= size;
3163         }
3164
3165 done:
3166         kfree(buf);
3167         return err;
3168 }
3169
3170 static int btusb_setup_qca_load_rampatch(struct hci_dev *hdev,
3171                                          struct qca_version *ver,
3172                                          const struct qca_device_info *info)
3173 {
3174         struct qca_rampatch_version *rver;
3175         const struct firmware *fw;
3176         u32 ver_rom, ver_patch, rver_rom;
3177         u16 rver_rom_low, rver_rom_high, rver_patch;
3178         char fwname[64];
3179         int err;
3180
3181         ver_rom = le32_to_cpu(ver->rom_version);
3182         ver_patch = le32_to_cpu(ver->patch_version);
3183
3184         snprintf(fwname, sizeof(fwname), "qca/rampatch_usb_%08x.bin", ver_rom);
3185
3186         err = request_firmware(&fw, fwname, &hdev->dev);
3187         if (err) {
3188                 bt_dev_err(hdev, "failed to request rampatch file: %s (%d)",
3189                            fwname, err);
3190                 return err;
3191         }
3192
3193         bt_dev_info(hdev, "using rampatch file: %s", fwname);
3194
3195         rver = (struct qca_rampatch_version *)(fw->data + info->ver_offset);
3196         rver_rom_low = le16_to_cpu(rver->rom_version_low);
3197         rver_patch = le16_to_cpu(rver->patch_version);
3198
3199         if (ver_rom & ~0xffffU) {
3200                 rver_rom_high = le16_to_cpu(rver->rom_version_high);
3201                 rver_rom = rver_rom_high << 16 | rver_rom_low;
3202         } else {
3203                 rver_rom = rver_rom_low;
3204         }
3205
3206         bt_dev_info(hdev, "QCA: patch rome 0x%x build 0x%x, "
3207                     "firmware rome 0x%x build 0x%x",
3208                     rver_rom, rver_patch, ver_rom, ver_patch);
3209
3210         if (rver_rom != ver_rom || rver_patch <= ver_patch) {
3211                 bt_dev_err(hdev, "rampatch file version did not match with firmware");
3212                 err = -EINVAL;
3213                 goto done;
3214         }
3215
3216         err = btusb_setup_qca_download_fw(hdev, fw, info->rampatch_hdr);
3217
3218 done:
3219         release_firmware(fw);
3220
3221         return err;
3222 }
3223
3224 static void btusb_generate_qca_nvm_name(char *fwname, size_t max_size,
3225                                         const struct qca_version *ver)
3226 {
3227         u32 rom_version = le32_to_cpu(ver->rom_version);
3228         u16 flag = le16_to_cpu(ver->flag);
3229
3230         if (((flag >> 8) & 0xff) == QCA_FLAG_MULTI_NVM) {
3231                 /* The board_id should be split into two bytes
3232                  * The 1st byte is chip ID, and the 2nd byte is platform ID
3233                  * For example, board ID 0x010A, 0x01 is platform ID. 0x0A is chip ID
3234                  * we have several platforms, and platform IDs are continuously added
3235                  * Platform ID:
3236                  * 0x00 is for Mobile
3237                  * 0x01 is for X86
3238                  * 0x02 is for Automotive
3239                  * 0x03 is for Consumer electronic
3240                  */
3241                 u16 board_id = (ver->chip_id << 8) + ver->platform_id;
3242                 const char *variant;
3243
3244                 switch (le32_to_cpu(ver->ram_version)) {
3245                 case WCN6855_2_0_RAM_VERSION_GF:
3246                 case WCN6855_2_1_RAM_VERSION_GF:
3247                         variant = "_gf";
3248                         break;
3249                 default:
3250                         variant = "";
3251                         break;
3252                 }
3253
3254                 if (board_id == 0) {
3255                         snprintf(fwname, max_size, "qca/nvm_usb_%08x%s.bin",
3256                                 rom_version, variant);
3257                 } else {
3258                         snprintf(fwname, max_size, "qca/nvm_usb_%08x%s_%04x.bin",
3259                                 rom_version, variant, board_id);
3260                 }
3261         } else {
3262                 snprintf(fwname, max_size, "qca/nvm_usb_%08x.bin",
3263                         rom_version);
3264         }
3265
3266 }
3267
3268 static int btusb_setup_qca_load_nvm(struct hci_dev *hdev,
3269                                     struct qca_version *ver,
3270                                     const struct qca_device_info *info)
3271 {
3272         const struct firmware *fw;
3273         char fwname[64];
3274         int err;
3275
3276         btusb_generate_qca_nvm_name(fwname, sizeof(fwname), ver);
3277
3278         err = request_firmware(&fw, fwname, &hdev->dev);
3279         if (err) {
3280                 bt_dev_err(hdev, "failed to request NVM file: %s (%d)",
3281                            fwname, err);
3282                 return err;
3283         }
3284
3285         bt_dev_info(hdev, "using NVM file: %s", fwname);
3286
3287         err = btusb_setup_qca_download_fw(hdev, fw, info->nvm_hdr);
3288
3289         release_firmware(fw);
3290
3291         return err;
3292 }
3293
3294 /* identify the ROM version and check whether patches are needed */
3295 static bool btusb_qca_need_patch(struct usb_device *udev)
3296 {
3297         struct qca_version ver;
3298
3299         if (btusb_qca_send_vendor_req(udev, QCA_GET_TARGET_VERSION, &ver,
3300                                       sizeof(ver)) < 0)
3301                 return false;
3302         /* only low ROM versions need patches */
3303         return !(le32_to_cpu(ver.rom_version) & ~0xffffU);
3304 }
3305
3306 static int btusb_setup_qca(struct hci_dev *hdev)
3307 {
3308         struct btusb_data *btdata = hci_get_drvdata(hdev);
3309         struct usb_device *udev = btdata->udev;
3310         const struct qca_device_info *info = NULL;
3311         struct qca_version ver;
3312         u32 ver_rom;
3313         u8 status;
3314         int i, err;
3315
3316         err = btusb_qca_send_vendor_req(udev, QCA_GET_TARGET_VERSION, &ver,
3317                                         sizeof(ver));
3318         if (err < 0)
3319                 return err;
3320
3321         ver_rom = le32_to_cpu(ver.rom_version);
3322
3323         for (i = 0; i < ARRAY_SIZE(qca_devices_table); i++) {
3324                 if (ver_rom == qca_devices_table[i].rom_version)
3325                         info = &qca_devices_table[i];
3326         }
3327         if (!info) {
3328                 /* If the rom_version is not matched in the qca_devices_table
3329                  * and the high ROM version is not zero, we assume this chip no
3330                  * need to load the rampatch and nvm.
3331                  */
3332                 if (ver_rom & ~0xffffU)
3333                         return 0;
3334
3335                 bt_dev_err(hdev, "don't support firmware rome 0x%x", ver_rom);
3336                 return -ENODEV;
3337         }
3338
3339         err = btusb_qca_send_vendor_req(udev, QCA_CHECK_STATUS, &status,
3340                                         sizeof(status));
3341         if (err < 0)
3342                 return err;
3343
3344         if (!(status & QCA_PATCH_UPDATED)) {
3345                 err = btusb_setup_qca_load_rampatch(hdev, &ver, info);
3346                 if (err < 0)
3347                         return err;
3348         }
3349
3350         err = btusb_qca_send_vendor_req(udev, QCA_GET_TARGET_VERSION, &ver,
3351                                         sizeof(ver));
3352         if (err < 0)
3353                 return err;
3354
3355         btdata->qca_dump.fw_version = le32_to_cpu(ver.patch_version);
3356         btdata->qca_dump.controller_id = le32_to_cpu(ver.rom_version);
3357
3358         if (!(status & QCA_SYSCFG_UPDATED)) {
3359                 err = btusb_setup_qca_load_nvm(hdev, &ver, info);
3360                 if (err < 0)
3361                         return err;
3362
3363                 /* WCN6855 2.1 and later will reset to apply firmware downloaded here, so
3364                  * wait ~100ms for reset Done then go ahead, otherwise, it maybe
3365                  * cause potential enable failure.
3366                  */
3367                 if (info->rom_version >= 0x00130201)
3368                         msleep(QCA_BT_RESET_WAIT_MS);
3369         }
3370
3371         /* Mark HCI_OP_ENHANCED_SETUP_SYNC_CONN as broken as it doesn't seem to
3372          * work with the likes of HSP/HFP mSBC.
3373          */
3374         set_bit(HCI_QUIRK_BROKEN_ENHANCED_SETUP_SYNC_CONN, &hdev->quirks);
3375
3376         return 0;
3377 }
3378
3379 static inline int __set_diag_interface(struct hci_dev *hdev)
3380 {
3381         struct btusb_data *data = hci_get_drvdata(hdev);
3382         struct usb_interface *intf = data->diag;
3383         int i;
3384
3385         if (!data->diag)
3386                 return -ENODEV;
3387
3388         data->diag_tx_ep = NULL;
3389         data->diag_rx_ep = NULL;
3390
3391         for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
3392                 struct usb_endpoint_descriptor *ep_desc;
3393
3394                 ep_desc = &intf->cur_altsetting->endpoint[i].desc;
3395
3396                 if (!data->diag_tx_ep && usb_endpoint_is_bulk_out(ep_desc)) {
3397                         data->diag_tx_ep = ep_desc;
3398                         continue;
3399                 }
3400
3401                 if (!data->diag_rx_ep && usb_endpoint_is_bulk_in(ep_desc)) {
3402                         data->diag_rx_ep = ep_desc;
3403                         continue;
3404                 }
3405         }
3406
3407         if (!data->diag_tx_ep || !data->diag_rx_ep) {
3408                 bt_dev_err(hdev, "invalid diagnostic descriptors");
3409                 return -ENODEV;
3410         }
3411
3412         return 0;
3413 }
3414
3415 static struct urb *alloc_diag_urb(struct hci_dev *hdev, bool enable)
3416 {
3417         struct btusb_data *data = hci_get_drvdata(hdev);
3418         struct sk_buff *skb;
3419         struct urb *urb;
3420         unsigned int pipe;
3421
3422         if (!data->diag_tx_ep)
3423                 return ERR_PTR(-ENODEV);
3424
3425         urb = usb_alloc_urb(0, GFP_KERNEL);
3426         if (!urb)
3427                 return ERR_PTR(-ENOMEM);
3428
3429         skb = bt_skb_alloc(2, GFP_KERNEL);
3430         if (!skb) {
3431                 usb_free_urb(urb);
3432                 return ERR_PTR(-ENOMEM);
3433         }
3434
3435         skb_put_u8(skb, 0xf0);
3436         skb_put_u8(skb, enable);
3437
3438         pipe = usb_sndbulkpipe(data->udev, data->diag_tx_ep->bEndpointAddress);
3439
3440         usb_fill_bulk_urb(urb, data->udev, pipe,
3441                           skb->data, skb->len, btusb_tx_complete, skb);
3442
3443         skb->dev = (void *)hdev;
3444
3445         return urb;
3446 }
3447
3448 static int btusb_bcm_set_diag(struct hci_dev *hdev, bool enable)
3449 {
3450         struct btusb_data *data = hci_get_drvdata(hdev);
3451         struct urb *urb;
3452
3453         if (!data->diag)
3454                 return -ENODEV;
3455
3456         if (!test_bit(HCI_RUNNING, &hdev->flags))
3457                 return -ENETDOWN;
3458
3459         urb = alloc_diag_urb(hdev, enable);
3460         if (IS_ERR(urb))
3461                 return PTR_ERR(urb);
3462
3463         return submit_or_queue_tx_urb(hdev, urb);
3464 }
3465
3466 #ifdef CONFIG_PM
3467 static irqreturn_t btusb_oob_wake_handler(int irq, void *priv)
3468 {
3469         struct btusb_data *data = priv;
3470
3471         pm_wakeup_event(&data->udev->dev, 0);
3472         pm_system_wakeup();
3473
3474         /* Disable only if not already disabled (keep it balanced) */
3475         if (test_and_clear_bit(BTUSB_OOB_WAKE_ENABLED, &data->flags)) {
3476                 disable_irq_nosync(irq);
3477                 disable_irq_wake(irq);
3478         }
3479         return IRQ_HANDLED;
3480 }
3481
3482 static const struct of_device_id btusb_match_table[] = {
3483         { .compatible = "usb1286,204e" },
3484         { .compatible = "usbcf3,e300" }, /* QCA6174A */
3485         { .compatible = "usb4ca,301a" }, /* QCA6174A (Lite-On) */
3486         { }
3487 };
3488 MODULE_DEVICE_TABLE(of, btusb_match_table);
3489
3490 /* Use an oob wakeup pin? */
3491 static int btusb_config_oob_wake(struct hci_dev *hdev)
3492 {
3493         struct btusb_data *data = hci_get_drvdata(hdev);
3494         struct device *dev = &data->udev->dev;
3495         int irq, ret;
3496
3497         clear_bit(BTUSB_OOB_WAKE_ENABLED, &data->flags);
3498
3499         if (!of_match_device(btusb_match_table, dev))
3500                 return 0;
3501
3502         /* Move on if no IRQ specified */
3503         irq = of_irq_get_byname(dev->of_node, "wakeup");
3504         if (irq <= 0) {
3505                 bt_dev_dbg(hdev, "%s: no OOB Wakeup IRQ in DT", __func__);
3506                 return 0;
3507         }
3508
3509         irq_set_status_flags(irq, IRQ_NOAUTOEN);
3510         ret = devm_request_irq(&hdev->dev, irq, btusb_oob_wake_handler,
3511                                0, "OOB Wake-on-BT", data);
3512         if (ret) {
3513                 bt_dev_err(hdev, "%s: IRQ request failed", __func__);
3514                 return ret;
3515         }
3516
3517         ret = device_init_wakeup(dev, true);
3518         if (ret) {
3519                 bt_dev_err(hdev, "%s: failed to init_wakeup", __func__);
3520                 return ret;
3521         }
3522
3523         data->oob_wake_irq = irq;
3524         bt_dev_info(hdev, "OOB Wake-on-BT configured at IRQ %u", irq);
3525         return 0;
3526 }
3527 #endif
3528
3529 static void btusb_check_needs_reset_resume(struct usb_interface *intf)
3530 {
3531         if (dmi_check_system(btusb_needs_reset_resume_table))
3532                 interface_to_usbdev(intf)->quirks |= USB_QUIRK_RESET_RESUME;
3533 }
3534
3535 static bool btusb_wakeup(struct hci_dev *hdev)
3536 {
3537         struct btusb_data *data = hci_get_drvdata(hdev);
3538
3539         return device_may_wakeup(&data->udev->dev);
3540 }
3541
3542 static int btusb_shutdown_qca(struct hci_dev *hdev)
3543 {
3544         struct sk_buff *skb;
3545
3546         skb = __hci_cmd_sync(hdev, HCI_OP_RESET, 0, NULL, HCI_INIT_TIMEOUT);
3547         if (IS_ERR(skb)) {
3548                 bt_dev_err(hdev, "HCI reset during shutdown failed");
3549                 return PTR_ERR(skb);
3550         }
3551         kfree_skb(skb);
3552
3553         return 0;
3554 }
3555
3556 static ssize_t force_poll_sync_read(struct file *file, char __user *user_buf,
3557                                     size_t count, loff_t *ppos)
3558 {
3559         struct btusb_data *data = file->private_data;
3560         char buf[3];
3561
3562         buf[0] = data->poll_sync ? 'Y' : 'N';
3563         buf[1] = '\n';
3564         buf[2] = '\0';
3565         return simple_read_from_buffer(user_buf, count, ppos, buf, 2);
3566 }
3567
3568 static ssize_t force_poll_sync_write(struct file *file,
3569                                      const char __user *user_buf,
3570                                      size_t count, loff_t *ppos)
3571 {
3572         struct btusb_data *data = file->private_data;
3573         bool enable;
3574         int err;
3575
3576         err = kstrtobool_from_user(user_buf, count, &enable);
3577         if (err)
3578                 return err;
3579
3580         /* Only allow changes while the adapter is down */
3581         if (test_bit(HCI_UP, &data->hdev->flags))
3582                 return -EPERM;
3583
3584         if (data->poll_sync == enable)
3585                 return -EALREADY;
3586
3587         data->poll_sync = enable;
3588
3589         return count;
3590 }
3591
3592 static const struct file_operations force_poll_sync_fops = {
3593         .open           = simple_open,
3594         .read           = force_poll_sync_read,
3595         .write          = force_poll_sync_write,
3596         .llseek         = default_llseek,
3597 };
3598
3599 static int btusb_probe(struct usb_interface *intf,
3600                        const struct usb_device_id *id)
3601 {
3602         struct usb_endpoint_descriptor *ep_desc;
3603         struct gpio_desc *reset_gpio;
3604         struct btusb_data *data;
3605         struct hci_dev *hdev;
3606         unsigned ifnum_base;
3607         int i, err, priv_size;
3608
3609         BT_DBG("intf %p id %p", intf, id);
3610
3611         if ((id->driver_info & BTUSB_IFNUM_2) &&
3612             (intf->cur_altsetting->desc.bInterfaceNumber != 0) &&
3613             (intf->cur_altsetting->desc.bInterfaceNumber != 2))
3614                 return -ENODEV;
3615
3616         ifnum_base = intf->cur_altsetting->desc.bInterfaceNumber;
3617
3618         if (!id->driver_info) {
3619                 const struct usb_device_id *match;
3620
3621                 match = usb_match_id(intf, quirks_table);
3622                 if (match)
3623                         id = match;
3624         }
3625
3626         if (id->driver_info == BTUSB_IGNORE)
3627                 return -ENODEV;
3628
3629         if (id->driver_info & BTUSB_ATH3012) {
3630                 struct usb_device *udev = interface_to_usbdev(intf);
3631
3632                 /* Old firmware would otherwise let ath3k driver load
3633                  * patch and sysconfig files
3634                  */
3635                 if (le16_to_cpu(udev->descriptor.bcdDevice) <= 0x0001 &&
3636                     !btusb_qca_need_patch(udev))
3637                         return -ENODEV;
3638         }
3639
3640         data = devm_kzalloc(&intf->dev, sizeof(*data), GFP_KERNEL);
3641         if (!data)
3642                 return -ENOMEM;
3643
3644         for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
3645                 ep_desc = &intf->cur_altsetting->endpoint[i].desc;
3646
3647                 if (!data->intr_ep && usb_endpoint_is_int_in(ep_desc)) {
3648                         data->intr_ep = ep_desc;
3649                         continue;
3650                 }
3651
3652                 if (!data->bulk_tx_ep && usb_endpoint_is_bulk_out(ep_desc)) {
3653                         data->bulk_tx_ep = ep_desc;
3654                         continue;
3655                 }
3656
3657                 if (!data->bulk_rx_ep && usb_endpoint_is_bulk_in(ep_desc)) {
3658                         data->bulk_rx_ep = ep_desc;
3659                         continue;
3660                 }
3661         }
3662
3663         if (!data->intr_ep || !data->bulk_tx_ep || !data->bulk_rx_ep)
3664                 return -ENODEV;
3665
3666         if (id->driver_info & BTUSB_AMP) {
3667                 data->cmdreq_type = USB_TYPE_CLASS | 0x01;
3668                 data->cmdreq = 0x2b;
3669         } else {
3670                 data->cmdreq_type = USB_TYPE_CLASS;
3671                 data->cmdreq = 0x00;
3672         }
3673
3674         data->udev = interface_to_usbdev(intf);
3675         data->intf = intf;
3676
3677         INIT_WORK(&data->work, btusb_work);
3678         INIT_WORK(&data->waker, btusb_waker);
3679         INIT_DELAYED_WORK(&data->rx_work, btusb_rx_work);
3680
3681         skb_queue_head_init(&data->acl_q);
3682
3683         init_usb_anchor(&data->deferred);
3684         init_usb_anchor(&data->tx_anchor);
3685         spin_lock_init(&data->txlock);
3686
3687         init_usb_anchor(&data->intr_anchor);
3688         init_usb_anchor(&data->bulk_anchor);
3689         init_usb_anchor(&data->isoc_anchor);
3690         init_usb_anchor(&data->diag_anchor);
3691         init_usb_anchor(&data->ctrl_anchor);
3692         spin_lock_init(&data->rxlock);
3693
3694         priv_size = 0;
3695
3696         data->recv_event = hci_recv_frame;
3697         data->recv_bulk = btusb_recv_bulk;
3698
3699         if (id->driver_info & BTUSB_INTEL_COMBINED) {
3700                 /* Allocate extra space for Intel device */
3701                 priv_size += sizeof(struct btintel_data);
3702
3703                 /* Override the rx handlers */
3704                 data->recv_event = btintel_recv_event;
3705                 data->recv_bulk = btusb_recv_bulk_intel;
3706         } else if (id->driver_info & BTUSB_REALTEK) {
3707                 /* Allocate extra space for Realtek device */
3708                 priv_size += sizeof(struct btrealtek_data);
3709
3710                 data->recv_event = btusb_recv_event_realtek;
3711         } else if (id->driver_info & BTUSB_MEDIATEK) {
3712                 /* Allocate extra space for Mediatek device */
3713                 priv_size += sizeof(struct btmtk_data);
3714         }
3715
3716         data->recv_acl = hci_recv_frame;
3717
3718         hdev = hci_alloc_dev_priv(priv_size);
3719         if (!hdev)
3720                 return -ENOMEM;
3721
3722         hdev->bus = HCI_USB;
3723         hci_set_drvdata(hdev, data);
3724
3725         data->hdev = hdev;
3726
3727         SET_HCIDEV_DEV(hdev, &intf->dev);
3728
3729         reset_gpio = gpiod_get_optional(&data->udev->dev, "reset",
3730                                         GPIOD_OUT_LOW);
3731         if (IS_ERR(reset_gpio)) {
3732                 err = PTR_ERR(reset_gpio);
3733                 goto out_free_dev;
3734         } else if (reset_gpio) {
3735                 data->reset_gpio = reset_gpio;
3736         }
3737
3738         hdev->open   = btusb_open;
3739         hdev->close  = btusb_close;
3740         hdev->flush  = btusb_flush;
3741         hdev->send   = btusb_send_frame;
3742         hdev->notify = btusb_notify;
3743         hdev->wakeup = btusb_wakeup;
3744
3745 #ifdef CONFIG_PM
3746         err = btusb_config_oob_wake(hdev);
3747         if (err)
3748                 goto out_free_dev;
3749
3750         /* Marvell devices may need a specific chip configuration */
3751         if (id->driver_info & BTUSB_MARVELL && data->oob_wake_irq) {
3752                 err = marvell_config_oob_wake(hdev);
3753                 if (err)
3754                         goto out_free_dev;
3755         }
3756 #endif
3757         if (id->driver_info & BTUSB_CW6622)
3758                 set_bit(HCI_QUIRK_BROKEN_STORED_LINK_KEY, &hdev->quirks);
3759
3760         if (id->driver_info & BTUSB_BCM2045)
3761                 set_bit(HCI_QUIRK_BROKEN_STORED_LINK_KEY, &hdev->quirks);
3762
3763         if (id->driver_info & BTUSB_BCM92035)
3764                 hdev->setup = btusb_setup_bcm92035;
3765
3766         if (IS_ENABLED(CONFIG_BT_HCIBTUSB_BCM) &&
3767             (id->driver_info & BTUSB_BCM_PATCHRAM)) {
3768                 hdev->manufacturer = 15;
3769                 hdev->setup = btbcm_setup_patchram;
3770                 hdev->set_diag = btusb_bcm_set_diag;
3771                 hdev->set_bdaddr = btbcm_set_bdaddr;
3772
3773                 /* Broadcom LM_DIAG Interface numbers are hardcoded */
3774                 data->diag = usb_ifnum_to_if(data->udev, ifnum_base + 2);
3775         }
3776
3777         if (IS_ENABLED(CONFIG_BT_HCIBTUSB_BCM) &&
3778             (id->driver_info & BTUSB_BCM_APPLE)) {
3779                 hdev->manufacturer = 15;
3780                 hdev->setup = btbcm_setup_apple;
3781                 hdev->set_diag = btusb_bcm_set_diag;
3782
3783                 /* Broadcom LM_DIAG Interface numbers are hardcoded */
3784                 data->diag = usb_ifnum_to_if(data->udev, ifnum_base + 2);
3785         }
3786
3787         /* Combined Intel Device setup to support multiple setup routine */
3788         if (id->driver_info & BTUSB_INTEL_COMBINED) {
3789                 err = btintel_configure_setup(hdev, btusb_driver.name);
3790                 if (err)
3791                         goto out_free_dev;
3792
3793                 /* Transport specific configuration */
3794                 hdev->send = btusb_send_frame_intel;
3795                 hdev->cmd_timeout = btusb_intel_cmd_timeout;
3796
3797                 if (id->driver_info & BTUSB_INTEL_NO_WBS_SUPPORT)
3798                         btintel_set_flag(hdev, INTEL_ROM_LEGACY_NO_WBS_SUPPORT);
3799
3800                 if (id->driver_info & BTUSB_INTEL_BROKEN_INITIAL_NCMD)
3801                         btintel_set_flag(hdev, INTEL_BROKEN_INITIAL_NCMD);
3802
3803                 if (id->driver_info & BTUSB_INTEL_BROKEN_SHUTDOWN_LED)
3804                         btintel_set_flag(hdev, INTEL_BROKEN_SHUTDOWN_LED);
3805         }
3806
3807         if (id->driver_info & BTUSB_MARVELL)
3808                 hdev->set_bdaddr = btusb_set_bdaddr_marvell;
3809
3810         if (IS_ENABLED(CONFIG_BT_HCIBTUSB_MTK) &&
3811             (id->driver_info & BTUSB_MEDIATEK)) {
3812                 hdev->setup = btusb_mtk_setup;
3813                 hdev->shutdown = btusb_mtk_shutdown;
3814                 hdev->manufacturer = 70;
3815                 hdev->cmd_timeout = btmtk_reset_sync;
3816                 hdev->set_bdaddr = btmtk_set_bdaddr;
3817                 hdev->send = btusb_send_frame_mtk;
3818                 set_bit(HCI_QUIRK_BROKEN_ENHANCED_SETUP_SYNC_CONN, &hdev->quirks);
3819                 set_bit(HCI_QUIRK_NON_PERSISTENT_SETUP, &hdev->quirks);
3820                 data->recv_acl = btmtk_usb_recv_acl;
3821                 data->suspend = btmtk_usb_suspend;
3822                 data->resume = btmtk_usb_resume;
3823         }
3824
3825         if (id->driver_info & BTUSB_SWAVE) {
3826                 set_bit(HCI_QUIRK_FIXUP_INQUIRY_MODE, &hdev->quirks);
3827                 set_bit(HCI_QUIRK_BROKEN_LOCAL_COMMANDS, &hdev->quirks);
3828         }
3829
3830         if (id->driver_info & BTUSB_INTEL_BOOT) {
3831                 hdev->manufacturer = 2;
3832                 set_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks);
3833         }
3834
3835         if (id->driver_info & BTUSB_ATH3012) {
3836                 data->setup_on_usb = btusb_setup_qca;
3837                 hdev->set_bdaddr = btusb_set_bdaddr_ath3012;
3838                 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks);
3839                 set_bit(HCI_QUIRK_STRICT_DUPLICATE_FILTER, &hdev->quirks);
3840         }
3841
3842         if (id->driver_info & BTUSB_QCA_ROME) {
3843                 data->setup_on_usb = btusb_setup_qca;
3844                 hdev->shutdown = btusb_shutdown_qca;
3845                 hdev->set_bdaddr = btusb_set_bdaddr_ath3012;
3846                 hdev->cmd_timeout = btusb_qca_cmd_timeout;
3847                 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks);
3848                 btusb_check_needs_reset_resume(intf);
3849         }
3850
3851         if (id->driver_info & BTUSB_QCA_WCN6855) {
3852                 data->qca_dump.id_vendor = id->idVendor;
3853                 data->qca_dump.id_product = id->idProduct;
3854                 data->recv_event = btusb_recv_evt_qca;
3855                 data->recv_acl = btusb_recv_acl_qca;
3856                 hci_devcd_register(hdev, btusb_coredump_qca, btusb_dump_hdr_qca, NULL);
3857                 data->setup_on_usb = btusb_setup_qca;
3858                 hdev->shutdown = btusb_shutdown_qca;
3859                 hdev->set_bdaddr = btusb_set_bdaddr_wcn6855;
3860                 hdev->cmd_timeout = btusb_qca_cmd_timeout;
3861                 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks);
3862                 hci_set_msft_opcode(hdev, 0xFD70);
3863         }
3864
3865         if (id->driver_info & BTUSB_AMP) {
3866                 /* AMP controllers do not support SCO packets */
3867                 data->isoc = NULL;
3868         } else {
3869                 /* Interface orders are hardcoded in the specification */
3870                 data->isoc = usb_ifnum_to_if(data->udev, ifnum_base + 1);
3871                 data->isoc_ifnum = ifnum_base + 1;
3872         }
3873
3874         if (IS_ENABLED(CONFIG_BT_HCIBTUSB_RTL) &&
3875             (id->driver_info & BTUSB_REALTEK)) {
3876                 btrtl_set_driver_name(hdev, btusb_driver.name);
3877                 hdev->setup = btusb_setup_realtek;
3878                 hdev->shutdown = btrtl_shutdown_realtek;
3879                 hdev->cmd_timeout = btusb_rtl_cmd_timeout;
3880                 hdev->hw_error = btusb_rtl_hw_error;
3881
3882                 /* Realtek devices need to set remote wakeup on auto-suspend */
3883                 set_bit(BTUSB_WAKEUP_AUTOSUSPEND, &data->flags);
3884                 set_bit(BTUSB_USE_ALT3_FOR_WBS, &data->flags);
3885         }
3886
3887         if (id->driver_info & BTUSB_ACTIONS_SEMI) {
3888                 /* Support is advertised, but not implemented */
3889                 set_bit(HCI_QUIRK_BROKEN_ERR_DATA_REPORTING, &hdev->quirks);
3890                 set_bit(HCI_QUIRK_BROKEN_READ_TRANSMIT_POWER, &hdev->quirks);
3891                 set_bit(HCI_QUIRK_BROKEN_SET_RPA_TIMEOUT, &hdev->quirks);
3892                 set_bit(HCI_QUIRK_BROKEN_EXT_SCAN, &hdev->quirks);
3893                 set_bit(HCI_QUIRK_BROKEN_READ_ENC_KEY_SIZE, &hdev->quirks);
3894         }
3895
3896         if (!reset)
3897                 set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
3898
3899         if (force_scofix || id->driver_info & BTUSB_WRONG_SCO_MTU) {
3900                 if (!disable_scofix)
3901                         set_bit(HCI_QUIRK_FIXUP_BUFFER_SIZE, &hdev->quirks);
3902         }
3903
3904         if (id->driver_info & BTUSB_BROKEN_ISOC)
3905                 data->isoc = NULL;
3906
3907         if (id->driver_info & BTUSB_WIDEBAND_SPEECH)
3908                 set_bit(HCI_QUIRK_WIDEBAND_SPEECH_SUPPORTED, &hdev->quirks);
3909
3910         if (id->driver_info & BTUSB_INVALID_LE_STATES)
3911                 set_bit(HCI_QUIRK_BROKEN_LE_STATES, &hdev->quirks);
3912
3913         if (id->driver_info & BTUSB_DIGIANSWER) {
3914                 data->cmdreq_type = USB_TYPE_VENDOR;
3915                 set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
3916         }
3917
3918         if (id->driver_info & BTUSB_CSR) {
3919                 struct usb_device *udev = data->udev;
3920                 u16 bcdDevice = le16_to_cpu(udev->descriptor.bcdDevice);
3921
3922                 /* Old firmware would otherwise execute USB reset */
3923                 if (bcdDevice < 0x117)
3924                         set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
3925
3926                 /* This must be set first in case we disable it for fakes */
3927                 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks);
3928
3929                 /* Fake CSR devices with broken commands */
3930                 if (le16_to_cpu(udev->descriptor.idVendor)  == 0x0a12 &&
3931                     le16_to_cpu(udev->descriptor.idProduct) == 0x0001)
3932                         hdev->setup = btusb_setup_csr;
3933         }
3934
3935         if (id->driver_info & BTUSB_SNIFFER) {
3936                 struct usb_device *udev = data->udev;
3937
3938                 /* New sniffer firmware has crippled HCI interface */
3939                 if (le16_to_cpu(udev->descriptor.bcdDevice) > 0x997)
3940                         set_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks);
3941         }
3942
3943         if (id->driver_info & BTUSB_INTEL_BOOT) {
3944                 /* A bug in the bootloader causes that interrupt interface is
3945                  * only enabled after receiving SetInterface(0, AltSetting=0).
3946                  */
3947                 err = usb_set_interface(data->udev, 0, 0);
3948                 if (err < 0) {
3949                         BT_ERR("failed to set interface 0, alt 0 %d", err);
3950                         goto out_free_dev;
3951                 }
3952         }
3953
3954         if (data->isoc) {
3955                 err = usb_driver_claim_interface(&btusb_driver,
3956                                                  data->isoc, data);
3957                 if (err < 0)
3958                         goto out_free_dev;
3959         }
3960
3961         if (IS_ENABLED(CONFIG_BT_HCIBTUSB_BCM) && data->diag) {
3962                 if (!usb_driver_claim_interface(&btusb_driver,
3963                                                 data->diag, data))
3964                         __set_diag_interface(hdev);
3965                 else
3966                         data->diag = NULL;
3967         }
3968
3969         if (enable_autosuspend)
3970                 usb_enable_autosuspend(data->udev);
3971
3972         data->poll_sync = enable_poll_sync;
3973
3974         err = hci_register_dev(hdev);
3975         if (err < 0)
3976                 goto out_free_dev;
3977
3978         usb_set_intfdata(intf, data);
3979
3980         debugfs_create_file("force_poll_sync", 0644, hdev->debugfs, data,
3981                             &force_poll_sync_fops);
3982
3983         return 0;
3984
3985 out_free_dev:
3986         if (data->reset_gpio)
3987                 gpiod_put(data->reset_gpio);
3988         hci_free_dev(hdev);
3989         return err;
3990 }
3991
3992 static void btusb_disconnect(struct usb_interface *intf)
3993 {
3994         struct btusb_data *data = usb_get_intfdata(intf);
3995         struct hci_dev *hdev;
3996
3997         BT_DBG("intf %p", intf);
3998
3999         if (!data)
4000                 return;
4001
4002         hdev = data->hdev;
4003         usb_set_intfdata(data->intf, NULL);
4004
4005         if (data->isoc)
4006                 usb_set_intfdata(data->isoc, NULL);
4007
4008         if (data->diag)
4009                 usb_set_intfdata(data->diag, NULL);
4010
4011         hci_unregister_dev(hdev);
4012
4013         if (intf == data->intf) {
4014                 if (data->isoc)
4015                         usb_driver_release_interface(&btusb_driver, data->isoc);
4016                 if (data->diag)
4017                         usb_driver_release_interface(&btusb_driver, data->diag);
4018         } else if (intf == data->isoc) {
4019                 if (data->diag)
4020                         usb_driver_release_interface(&btusb_driver, data->diag);
4021                 usb_driver_release_interface(&btusb_driver, data->intf);
4022         } else if (intf == data->diag) {
4023                 usb_driver_release_interface(&btusb_driver, data->intf);
4024                 if (data->isoc)
4025                         usb_driver_release_interface(&btusb_driver, data->isoc);
4026         }
4027
4028         if (data->oob_wake_irq)
4029                 device_init_wakeup(&data->udev->dev, false);
4030
4031         if (data->reset_gpio)
4032                 gpiod_put(data->reset_gpio);
4033
4034         hci_free_dev(hdev);
4035 }
4036
4037 #ifdef CONFIG_PM
4038 static int btusb_suspend(struct usb_interface *intf, pm_message_t message)
4039 {
4040         struct btusb_data *data = usb_get_intfdata(intf);
4041
4042         BT_DBG("intf %p", intf);
4043
4044         /* Don't suspend if there are connections */
4045         if (hci_conn_count(data->hdev))
4046                 return -EBUSY;
4047
4048         if (data->suspend_count++)
4049                 return 0;
4050
4051         spin_lock_irq(&data->txlock);
4052         if (!(PMSG_IS_AUTO(message) && data->tx_in_flight)) {
4053                 set_bit(BTUSB_SUSPENDING, &data->flags);
4054                 spin_unlock_irq(&data->txlock);
4055         } else {
4056                 spin_unlock_irq(&data->txlock);
4057                 data->suspend_count--;
4058                 return -EBUSY;
4059         }
4060
4061         cancel_work_sync(&data->work);
4062
4063         if (data->suspend)
4064                 data->suspend(data->hdev);
4065
4066         btusb_stop_traffic(data);
4067         usb_kill_anchored_urbs(&data->tx_anchor);
4068
4069         if (data->oob_wake_irq && device_may_wakeup(&data->udev->dev)) {
4070                 set_bit(BTUSB_OOB_WAKE_ENABLED, &data->flags);
4071                 enable_irq_wake(data->oob_wake_irq);
4072                 enable_irq(data->oob_wake_irq);
4073         }
4074
4075         /* For global suspend, Realtek devices lose the loaded fw
4076          * in them. But for autosuspend, firmware should remain.
4077          * Actually, it depends on whether the usb host sends
4078          * set feature (enable wakeup) or not.
4079          */
4080         if (test_bit(BTUSB_WAKEUP_AUTOSUSPEND, &data->flags)) {
4081                 if (PMSG_IS_AUTO(message) &&
4082                     device_can_wakeup(&data->udev->dev))
4083                         data->udev->do_remote_wakeup = 1;
4084                 else if (!PMSG_IS_AUTO(message) &&
4085                          !device_may_wakeup(&data->udev->dev)) {
4086                         data->udev->do_remote_wakeup = 0;
4087                         data->udev->reset_resume = 1;
4088                 }
4089         }
4090
4091         return 0;
4092 }
4093
4094 static void play_deferred(struct btusb_data *data)
4095 {
4096         struct urb *urb;
4097         int err;
4098
4099         while ((urb = usb_get_from_anchor(&data->deferred))) {
4100                 usb_anchor_urb(urb, &data->tx_anchor);
4101
4102                 err = usb_submit_urb(urb, GFP_ATOMIC);
4103                 if (err < 0) {
4104                         if (err != -EPERM && err != -ENODEV)
4105                                 BT_ERR("%s urb %p submission failed (%d)",
4106                                        data->hdev->name, urb, -err);
4107                         kfree(urb->setup_packet);
4108                         usb_unanchor_urb(urb);
4109                         usb_free_urb(urb);
4110                         break;
4111                 }
4112
4113                 data->tx_in_flight++;
4114                 usb_free_urb(urb);
4115         }
4116
4117         /* Cleanup the rest deferred urbs. */
4118         while ((urb = usb_get_from_anchor(&data->deferred))) {
4119                 kfree(urb->setup_packet);
4120                 usb_free_urb(urb);
4121         }
4122 }
4123
4124 static int btusb_resume(struct usb_interface *intf)
4125 {
4126         struct btusb_data *data = usb_get_intfdata(intf);
4127         struct hci_dev *hdev = data->hdev;
4128         int err = 0;
4129
4130         BT_DBG("intf %p", intf);
4131
4132         if (--data->suspend_count)
4133                 return 0;
4134
4135         /* Disable only if not already disabled (keep it balanced) */
4136         if (test_and_clear_bit(BTUSB_OOB_WAKE_ENABLED, &data->flags)) {
4137                 disable_irq(data->oob_wake_irq);
4138                 disable_irq_wake(data->oob_wake_irq);
4139         }
4140
4141         if (!test_bit(HCI_RUNNING, &hdev->flags))
4142                 goto done;
4143
4144         if (test_bit(BTUSB_INTR_RUNNING, &data->flags)) {
4145                 err = btusb_submit_intr_urb(hdev, GFP_NOIO);
4146                 if (err < 0) {
4147                         clear_bit(BTUSB_INTR_RUNNING, &data->flags);
4148                         goto failed;
4149                 }
4150         }
4151
4152         if (test_bit(BTUSB_BULK_RUNNING, &data->flags)) {
4153                 err = btusb_submit_bulk_urb(hdev, GFP_NOIO);
4154                 if (err < 0) {
4155                         clear_bit(BTUSB_BULK_RUNNING, &data->flags);
4156                         goto failed;
4157                 }
4158
4159                 btusb_submit_bulk_urb(hdev, GFP_NOIO);
4160         }
4161
4162         if (test_bit(BTUSB_ISOC_RUNNING, &data->flags)) {
4163                 if (btusb_submit_isoc_urb(hdev, GFP_NOIO) < 0)
4164                         clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
4165                 else
4166                         btusb_submit_isoc_urb(hdev, GFP_NOIO);
4167         }
4168
4169         if (data->resume)
4170                 data->resume(hdev);
4171
4172         spin_lock_irq(&data->txlock);
4173         play_deferred(data);
4174         clear_bit(BTUSB_SUSPENDING, &data->flags);
4175         spin_unlock_irq(&data->txlock);
4176         schedule_work(&data->work);
4177
4178         return 0;
4179
4180 failed:
4181         usb_scuttle_anchored_urbs(&data->deferred);
4182 done:
4183         spin_lock_irq(&data->txlock);
4184         clear_bit(BTUSB_SUSPENDING, &data->flags);
4185         spin_unlock_irq(&data->txlock);
4186
4187         return err;
4188 }
4189 #endif
4190
4191 #ifdef CONFIG_DEV_COREDUMP
4192 static void btusb_coredump(struct device *dev)
4193 {
4194         struct btusb_data *data = dev_get_drvdata(dev);
4195         struct hci_dev *hdev = data->hdev;
4196
4197         if (hdev->dump.coredump)
4198                 hdev->dump.coredump(hdev);
4199 }
4200 #endif
4201
4202 static struct usb_driver btusb_driver = {
4203         .name           = "btusb",
4204         .probe          = btusb_probe,
4205         .disconnect     = btusb_disconnect,
4206 #ifdef CONFIG_PM
4207         .suspend        = btusb_suspend,
4208         .resume         = btusb_resume,
4209 #endif
4210         .id_table       = btusb_table,
4211         .supports_autosuspend = 1,
4212         .disable_hub_initiated_lpm = 1,
4213
4214 #ifdef CONFIG_DEV_COREDUMP
4215         .driver = {
4216                 .coredump = btusb_coredump,
4217         },
4218 #endif
4219 };
4220
4221 module_usb_driver(btusb_driver);
4222
4223 module_param(disable_scofix, bool, 0644);
4224 MODULE_PARM_DESC(disable_scofix, "Disable fixup of wrong SCO buffer size");
4225
4226 module_param(force_scofix, bool, 0644);
4227 MODULE_PARM_DESC(force_scofix, "Force fixup of wrong SCO buffers size");
4228
4229 module_param(enable_autosuspend, bool, 0644);
4230 MODULE_PARM_DESC(enable_autosuspend, "Enable USB autosuspend by default");
4231
4232 module_param(reset, bool, 0644);
4233 MODULE_PARM_DESC(reset, "Send HCI reset command on initialization");
4234
4235 MODULE_AUTHOR("Marcel Holtmann <[email protected]>");
4236 MODULE_DESCRIPTION("Generic Bluetooth USB driver ver " VERSION);
4237 MODULE_VERSION(VERSION);
4238 MODULE_LICENSE("GPL");