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_VALID_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                                                      BTUSB_VALID_LE_STATES },
 303         { USB_DEVICE(0x0489, 0xe0cc), .driver_info = BTUSB_QCA_WCN6855 |
 304                                                      BTUSB_WIDEBAND_SPEECH |
 305                                                      BTUSB_VALID_LE_STATES },
 306         { USB_DEVICE(0x0489, 0xe0d6), .driver_info = BTUSB_QCA_WCN6855 |
 307                                                      BTUSB_WIDEBAND_SPEECH |
 308                                                      BTUSB_VALID_LE_STATES },
 309         { USB_DEVICE(0x0489, 0xe0e3), .driver_info = BTUSB_QCA_WCN6855 |
 310                                                      BTUSB_WIDEBAND_SPEECH |
 311                                                      BTUSB_VALID_LE_STATES },
 312         { USB_DEVICE(0x10ab, 0x9309), .driver_info = BTUSB_QCA_WCN6855 |
 313                                                      BTUSB_WIDEBAND_SPEECH |
 314                                                      BTUSB_VALID_LE_STATES },
 315         { USB_DEVICE(0x10ab, 0x9409), .driver_info = BTUSB_QCA_WCN6855 |
 316                                                      BTUSB_WIDEBAND_SPEECH |
 317                                                      BTUSB_VALID_LE_STATES },
 318         { USB_DEVICE(0x0489, 0xe0d0), .driver_info = BTUSB_QCA_WCN6855 |
 319                                                      BTUSB_WIDEBAND_SPEECH |
 320                                                      BTUSB_VALID_LE_STATES },
 321         { USB_DEVICE(0x10ab, 0x9108), .driver_info = BTUSB_QCA_WCN6855 |
 322                                                      BTUSB_WIDEBAND_SPEECH |
 323                                                      BTUSB_VALID_LE_STATES },
 324         { USB_DEVICE(0x10ab, 0x9109), .driver_info = BTUSB_QCA_WCN6855 |
 325                                                      BTUSB_WIDEBAND_SPEECH |
 326                                                      BTUSB_VALID_LE_STATES },
 327         { USB_DEVICE(0x10ab, 0x9208), .driver_info = BTUSB_QCA_WCN6855 |
 328                                                      BTUSB_WIDEBAND_SPEECH |
 329                                                      BTUSB_VALID_LE_STATES },
 330         { USB_DEVICE(0x10ab, 0x9209), .driver_info = BTUSB_QCA_WCN6855 |
 331                                                      BTUSB_WIDEBAND_SPEECH |
 332                                                      BTUSB_VALID_LE_STATES },
 333         { USB_DEVICE(0x10ab, 0x9308), .driver_info = BTUSB_QCA_WCN6855 |
 334                                                      BTUSB_WIDEBAND_SPEECH |
 335                                                      BTUSB_VALID_LE_STATES },
 336         { USB_DEVICE(0x10ab, 0x9408), .driver_info = BTUSB_QCA_WCN6855 |
 337                                                      BTUSB_WIDEBAND_SPEECH |
 338                                                      BTUSB_VALID_LE_STATES },
 339         { USB_DEVICE(0x10ab, 0x9508), .driver_info = BTUSB_QCA_WCN6855 |
 340                                                      BTUSB_WIDEBAND_SPEECH |
 341                                                      BTUSB_VALID_LE_STATES },
 342         { USB_DEVICE(0x10ab, 0x9509), .driver_info = BTUSB_QCA_WCN6855 |
 343                                                      BTUSB_WIDEBAND_SPEECH |
 344                                                      BTUSB_VALID_LE_STATES },
 345         { USB_DEVICE(0x10ab, 0x9608), .driver_info = BTUSB_QCA_WCN6855 |
 346                                                      BTUSB_WIDEBAND_SPEECH |
 347                                                      BTUSB_VALID_LE_STATES },
 348         { USB_DEVICE(0x10ab, 0x9609), .driver_info = BTUSB_QCA_WCN6855 |
 349                                                      BTUSB_WIDEBAND_SPEECH |
 350                                                      BTUSB_VALID_LE_STATES },
 351         { USB_DEVICE(0x10ab, 0x9f09), .driver_info = BTUSB_QCA_WCN6855 |
 352                                                      BTUSB_WIDEBAND_SPEECH |
 353                                                      BTUSB_VALID_LE_STATES },
 354         { USB_DEVICE(0x04ca, 0x3022), .driver_info = BTUSB_QCA_WCN6855 |
 355                                                      BTUSB_WIDEBAND_SPEECH |
 356                                                      BTUSB_VALID_LE_STATES },
 357         { USB_DEVICE(0x0489, 0xe0c7), .driver_info = BTUSB_QCA_WCN6855 |
 358                                                      BTUSB_WIDEBAND_SPEECH |
 359                                                      BTUSB_VALID_LE_STATES },
 360         { USB_DEVICE(0x0489, 0xe0c9), .driver_info = BTUSB_QCA_WCN6855 |
 361                                                      BTUSB_WIDEBAND_SPEECH |
 362                                                      BTUSB_VALID_LE_STATES },
 363         { USB_DEVICE(0x0489, 0xe0ca), .driver_info = BTUSB_QCA_WCN6855 |
 364                                                      BTUSB_WIDEBAND_SPEECH |
 365                                                      BTUSB_VALID_LE_STATES },
 366         { USB_DEVICE(0x0489, 0xe0cb), .driver_info = BTUSB_QCA_WCN6855 |
 367                                                      BTUSB_WIDEBAND_SPEECH |
 368                                                      BTUSB_VALID_LE_STATES },
 369         { USB_DEVICE(0x0489, 0xe0ce), .driver_info = BTUSB_QCA_WCN6855 |
 370                                                      BTUSB_WIDEBAND_SPEECH |
 371                                                      BTUSB_VALID_LE_STATES },
 372         { USB_DEVICE(0x0489, 0xe0de), .driver_info = BTUSB_QCA_WCN6855 |
 373                                                      BTUSB_WIDEBAND_SPEECH |
 374                                                      BTUSB_VALID_LE_STATES },
 375         { USB_DEVICE(0x0489, 0xe0df), .driver_info = BTUSB_QCA_WCN6855 |
 376                                                      BTUSB_WIDEBAND_SPEECH |
 377                                                      BTUSB_VALID_LE_STATES },
 378         { USB_DEVICE(0x0489, 0xe0e1), .driver_info = BTUSB_QCA_WCN6855 |
 379                                                      BTUSB_WIDEBAND_SPEECH |
 380                                                      BTUSB_VALID_LE_STATES },
 381         { USB_DEVICE(0x0489, 0xe0ea), .driver_info = BTUSB_QCA_WCN6855 |
 382                                                      BTUSB_WIDEBAND_SPEECH |
 383                                                      BTUSB_VALID_LE_STATES },
 384         { USB_DEVICE(0x0489, 0xe0ec), .driver_info = BTUSB_QCA_WCN6855 |
 385                                                      BTUSB_WIDEBAND_SPEECH |
 386                                                      BTUSB_VALID_LE_STATES },
 387         { USB_DEVICE(0x04ca, 0x3023), .driver_info = BTUSB_QCA_WCN6855 |
 388                                                      BTUSB_WIDEBAND_SPEECH |
 389                                                      BTUSB_VALID_LE_STATES },
 390         { USB_DEVICE(0x04ca, 0x3024), .driver_info = BTUSB_QCA_WCN6855 |
 391                                                      BTUSB_WIDEBAND_SPEECH |
 392                                                      BTUSB_VALID_LE_STATES },
 393         { USB_DEVICE(0x04ca, 0x3a22), .driver_info = BTUSB_QCA_WCN6855 |
 394                                                      BTUSB_WIDEBAND_SPEECH |
 395                                                      BTUSB_VALID_LE_STATES },
 396         { USB_DEVICE(0x04ca, 0x3a24), .driver_info = BTUSB_QCA_WCN6855 |
 397                                                      BTUSB_WIDEBAND_SPEECH |
 398                                                      BTUSB_VALID_LE_STATES },
 399         { USB_DEVICE(0x04ca, 0x3a26), .driver_info = BTUSB_QCA_WCN6855 |
 400                                                      BTUSB_WIDEBAND_SPEECH |
 401                                                      BTUSB_VALID_LE_STATES },
 402         { USB_DEVICE(0x04ca, 0x3a27), .driver_info = BTUSB_QCA_WCN6855 |
 403                                                      BTUSB_WIDEBAND_SPEECH |
 404                                                      BTUSB_VALID_LE_STATES },
 405
 406         /* QCA WCN785x chipset */
 407         { USB_DEVICE(0x0cf3, 0xe700), .driver_info = BTUSB_QCA_WCN6855 |
 408                                                      BTUSB_WIDEBAND_SPEECH |
 409                                                      BTUSB_VALID_LE_STATES },
 410
 411         /* Broadcom BCM2035 */
 412         { USB_DEVICE(0x0a5c, 0x2009), .driver_info = BTUSB_BCM92035 },
 413         { USB_DEVICE(0x0a5c, 0x200a), .driver_info = BTUSB_WRONG_SCO_MTU },
 414         { USB_DEVICE(0x0a5c, 0x2035), .driver_info = BTUSB_WRONG_SCO_MTU },
 415
 416         /* Broadcom BCM2045 */
 417         { USB_DEVICE(0x0a5c, 0x2039), .driver_info = BTUSB_WRONG_SCO_MTU },
 418         { USB_DEVICE(0x0a5c, 0x2101), .driver_info = BTUSB_WRONG_SCO_MTU },
 419
 420         /* IBM/Lenovo ThinkPad with Broadcom chip */
 421         { USB_DEVICE(0x0a5c, 0x201e), .driver_info = BTUSB_WRONG_SCO_MTU },
 422         { USB_DEVICE(0x0a5c, 0x2110), .driver_info = BTUSB_WRONG_SCO_MTU },
 423
 424         /* HP laptop with Broadcom chip */
 425         { USB_DEVICE(0x03f0, 0x171d), .driver_info = BTUSB_WRONG_SCO_MTU },
 426
 427         /* Dell laptop with Broadcom chip */
 428         { USB_DEVICE(0x413c, 0x8126), .driver_info = BTUSB_WRONG_SCO_MTU },
 429
 430         /* Dell Wireless 370 and 410 devices */
 431         { USB_DEVICE(0x413c, 0x8152), .driver_info = BTUSB_WRONG_SCO_MTU },
 432         { USB_DEVICE(0x413c, 0x8156), .driver_info = BTUSB_WRONG_SCO_MTU },
 433
 434         /* Belkin F8T012 and F8T013 devices */
 435         { USB_DEVICE(0x050d, 0x0012), .driver_info = BTUSB_WRONG_SCO_MTU },
 436         { USB_DEVICE(0x050d, 0x0013), .driver_info = BTUSB_WRONG_SCO_MTU },
 437
 438         /* Asus WL-BTD202 device */
 439         { USB_DEVICE(0x0b05, 0x1715), .driver_info = BTUSB_WRONG_SCO_MTU },
 440
 441         /* Kensington Bluetooth USB adapter */
 442         { USB_DEVICE(0x047d, 0x105e), .driver_info = BTUSB_WRONG_SCO_MTU },
 443
 444         /* RTX Telecom based adapters with buggy SCO support */
 445         { USB_DEVICE(0x0400, 0x0807), .driver_info = BTUSB_BROKEN_ISOC },
 446         { USB_DEVICE(0x0400, 0x080a), .driver_info = BTUSB_BROKEN_ISOC },
 447
 448         /* CONWISE Technology based adapters with buggy SCO support */
 449         { USB_DEVICE(0x0e5e, 0x6622),
 450           .driver_info = BTUSB_BROKEN_ISOC | BTUSB_CW6622},
 451
 452         /* Roper Class 1 Bluetooth Dongle (Silicon Wave based) */
 453         { USB_DEVICE(0x1310, 0x0001), .driver_info = BTUSB_SWAVE },
 454
 455         /* Digianswer devices */
 456         { USB_DEVICE(0x08fd, 0x0001), .driver_info = BTUSB_DIGIANSWER },
 457         { USB_DEVICE(0x08fd, 0x0002), .driver_info = BTUSB_IGNORE },
 458
 459         /* CSR BlueCore Bluetooth Sniffer */
 460         { USB_DEVICE(0x0a12, 0x0002),
 461           .driver_info = BTUSB_SNIFFER | BTUSB_BROKEN_ISOC },
 462
 463         /* Frontline ComProbe Bluetooth Sniffer */
 464         { USB_DEVICE(0x16d3, 0x0002),
 465           .driver_info = BTUSB_SNIFFER | BTUSB_BROKEN_ISOC },
 466
 467         /* Marvell Bluetooth devices */
 468         { USB_DEVICE(0x1286, 0x2044), .driver_info = BTUSB_MARVELL },
 469         { USB_DEVICE(0x1286, 0x2046), .driver_info = BTUSB_MARVELL },
 470         { USB_DEVICE(0x1286, 0x204e), .driver_info = BTUSB_MARVELL },
 471
 472         /* Intel Bluetooth devices */
 473         { USB_DEVICE(0x8087, 0x0025), .driver_info = BTUSB_INTEL_COMBINED },
 474         { USB_DEVICE(0x8087, 0x0026), .driver_info = BTUSB_INTEL_COMBINED },
 475         { USB_DEVICE(0x8087, 0x0029), .driver_info = BTUSB_INTEL_COMBINED },
 476         { USB_DEVICE(0x8087, 0x0032), .driver_info = BTUSB_INTEL_COMBINED },
 477         { USB_DEVICE(0x8087, 0x0033), .driver_info = BTUSB_INTEL_COMBINED },
 478         { USB_DEVICE(0x8087, 0x0035), .driver_info = BTUSB_INTEL_COMBINED },
 479         { USB_DEVICE(0x8087, 0x0036), .driver_info = BTUSB_INTEL_COMBINED },
 480         { USB_DEVICE(0x8087, 0x0037), .driver_info = BTUSB_INTEL_COMBINED },
 481         { USB_DEVICE(0x8087, 0x0038), .driver_info = BTUSB_INTEL_COMBINED },
 482         { USB_DEVICE(0x8087, 0x0039), .driver_info = BTUSB_INTEL_COMBINED },
 483         { USB_DEVICE(0x8087, 0x07da), .driver_info = BTUSB_CSR },
 484         { USB_DEVICE(0x8087, 0x07dc), .driver_info = BTUSB_INTEL_COMBINED |
 485                                                      BTUSB_INTEL_NO_WBS_SUPPORT |
 486                                                      BTUSB_INTEL_BROKEN_INITIAL_NCMD |
 487                                                      BTUSB_INTEL_BROKEN_SHUTDOWN_LED },
 488         { USB_DEVICE(0x8087, 0x0a2a), .driver_info = BTUSB_INTEL_COMBINED |
 489                                                      BTUSB_INTEL_NO_WBS_SUPPORT |
 490                                                      BTUSB_INTEL_BROKEN_SHUTDOWN_LED },
 491         { USB_DEVICE(0x8087, 0x0a2b), .driver_info = BTUSB_INTEL_COMBINED },
 492         { USB_DEVICE(0x8087, 0x0aa7), .driver_info = BTUSB_INTEL_COMBINED |
 493                                                      BTUSB_INTEL_BROKEN_SHUTDOWN_LED },
 494         { USB_DEVICE(0x8087, 0x0aaa), .driver_info = BTUSB_INTEL_COMBINED },
 495
 496         /* Other Intel Bluetooth devices */
 497         { USB_VENDOR_AND_INTERFACE_INFO(0x8087, 0xe0, 0x01, 0x01),
 498           .driver_info = BTUSB_IGNORE },
 499
 500         /* Realtek 8821CE Bluetooth devices */
 501         { USB_DEVICE(0x13d3, 0x3529), .driver_info = BTUSB_REALTEK |
 502                                                      BTUSB_WIDEBAND_SPEECH },
 503
 504         /* Realtek 8822CE Bluetooth devices */
 505         { USB_DEVICE(0x0bda, 0xb00c), .driver_info = BTUSB_REALTEK |
 506                                                      BTUSB_WIDEBAND_SPEECH },
 507         { USB_DEVICE(0x0bda, 0xc822), .driver_info = BTUSB_REALTEK |
 508                                                      BTUSB_WIDEBAND_SPEECH },
 509
 510         /* Realtek 8822CU Bluetooth devices */
 511         { USB_DEVICE(0x13d3, 0x3549), .driver_info = BTUSB_REALTEK |
 512                                                      BTUSB_WIDEBAND_SPEECH },
 513
 514         /* Realtek 8852AE Bluetooth devices */
 515         { USB_DEVICE(0x0bda, 0x2852), .driver_info = BTUSB_REALTEK |
 516                                                      BTUSB_WIDEBAND_SPEECH },
 517         { USB_DEVICE(0x0bda, 0xc852), .driver_info = BTUSB_REALTEK |
 518                                                      BTUSB_WIDEBAND_SPEECH },
 519         { USB_DEVICE(0x0bda, 0x385a), .driver_info = BTUSB_REALTEK |
 520                                                      BTUSB_WIDEBAND_SPEECH },
 521         { USB_DEVICE(0x0bda, 0x4852), .driver_info = BTUSB_REALTEK |
 522                                                      BTUSB_WIDEBAND_SPEECH },
 523         { USB_DEVICE(0x04c5, 0x165c), .driver_info = BTUSB_REALTEK |
 524                                                      BTUSB_WIDEBAND_SPEECH },
 525         { USB_DEVICE(0x04ca, 0x4006), .driver_info = BTUSB_REALTEK |
 526                                                      BTUSB_WIDEBAND_SPEECH },
 527         { USB_DEVICE(0x0cb8, 0xc549), .driver_info = BTUSB_REALTEK |
 528                                                      BTUSB_WIDEBAND_SPEECH },
 529
 530         /* Realtek 8852CE Bluetooth devices */
 531         { USB_DEVICE(0x04ca, 0x4007), .driver_info = BTUSB_REALTEK |
 532                                                      BTUSB_WIDEBAND_SPEECH },
 533         { USB_DEVICE(0x04c5, 0x1675), .driver_info = BTUSB_REALTEK |
 534                                                      BTUSB_WIDEBAND_SPEECH },
 535         { USB_DEVICE(0x0cb8, 0xc558), .driver_info = BTUSB_REALTEK |
 536                                                      BTUSB_WIDEBAND_SPEECH },
 537         { USB_DEVICE(0x13d3, 0x3587), .driver_info = BTUSB_REALTEK |
 538                                                      BTUSB_WIDEBAND_SPEECH },
 539         { USB_DEVICE(0x13d3, 0x3586), .driver_info = BTUSB_REALTEK |
 540                                                      BTUSB_WIDEBAND_SPEECH },
 541         { USB_DEVICE(0x13d3, 0x3592), .driver_info = BTUSB_REALTEK |
 542                                                      BTUSB_WIDEBAND_SPEECH },
 543
 544         /* Realtek 8852BE Bluetooth devices */
 545         { USB_DEVICE(0x0cb8, 0xc559), .driver_info = BTUSB_REALTEK |
 546                                                      BTUSB_WIDEBAND_SPEECH },
 547         { USB_DEVICE(0x0bda, 0x4853), .driver_info = BTUSB_REALTEK |
 548                                                      BTUSB_WIDEBAND_SPEECH },
 549         { USB_DEVICE(0x0bda, 0x887b), .driver_info = BTUSB_REALTEK |
 550                                                      BTUSB_WIDEBAND_SPEECH },
 551         { USB_DEVICE(0x0bda, 0xb85b), .driver_info = BTUSB_REALTEK |
 552                                                      BTUSB_WIDEBAND_SPEECH },
 553         { USB_DEVICE(0x13d3, 0x3570), .driver_info = BTUSB_REALTEK |
 554                                                      BTUSB_WIDEBAND_SPEECH },
 555         { USB_DEVICE(0x13d3, 0x3571), .driver_info = BTUSB_REALTEK |
 556                                                      BTUSB_WIDEBAND_SPEECH },
 557         { USB_DEVICE(0x13d3, 0x3572), .driver_info = BTUSB_REALTEK |
 558                                                      BTUSB_WIDEBAND_SPEECH },
 559         { USB_DEVICE(0x13d3, 0x3591), .driver_info = BTUSB_REALTEK |
 560                                                      BTUSB_WIDEBAND_SPEECH },
 561         { USB_DEVICE(0x0489, 0xe125), .driver_info = BTUSB_REALTEK |
 562                                                      BTUSB_WIDEBAND_SPEECH },
 563
 564         /* Realtek 8852BT/8852BE-VT Bluetooth devices */
 565         { USB_DEVICE(0x0bda, 0x8520), .driver_info = BTUSB_REALTEK |
 566                                                      BTUSB_WIDEBAND_SPEECH },
 567         /* Realtek Bluetooth devices */
 568         { USB_VENDOR_AND_INTERFACE_INFO(0x0bda, 0xe0, 0x01, 0x01),
 569           .driver_info = BTUSB_REALTEK },
 570
 571         /* MediaTek Bluetooth devices */
 572         { USB_VENDOR_AND_INTERFACE_INFO(0x0e8d, 0xe0, 0x01, 0x01),
 573           .driver_info = BTUSB_MEDIATEK |
 574                          BTUSB_WIDEBAND_SPEECH |
 575                          BTUSB_VALID_LE_STATES },
 576
 577         /* Additional MediaTek MT7615E Bluetooth devices */
 578         { USB_DEVICE(0x13d3, 0x3560), .driver_info = BTUSB_MEDIATEK},
 579
 580         /* Additional MediaTek MT7663 Bluetooth devices */
 581         { USB_DEVICE(0x043e, 0x310c), .driver_info = BTUSB_MEDIATEK |
 582                                                      BTUSB_WIDEBAND_SPEECH |
 583                                                      BTUSB_VALID_LE_STATES },
 584         { USB_DEVICE(0x04ca, 0x3801), .driver_info = BTUSB_MEDIATEK |
 585                                                      BTUSB_WIDEBAND_SPEECH |
 586                                                      BTUSB_VALID_LE_STATES },
 587
 588         /* Additional MediaTek MT7668 Bluetooth devices */
 589         { USB_DEVICE(0x043e, 0x3109), .driver_info = BTUSB_MEDIATEK |
 590                                                      BTUSB_WIDEBAND_SPEECH |
 591                                                      BTUSB_VALID_LE_STATES },
 592
 593         /* Additional MediaTek MT7921 Bluetooth devices */
 594         { USB_DEVICE(0x0489, 0xe0c8), .driver_info = BTUSB_MEDIATEK |
 595                                                      BTUSB_WIDEBAND_SPEECH |
 596                                                      BTUSB_VALID_LE_STATES },
 597         { USB_DEVICE(0x0489, 0xe0cd), .driver_info = BTUSB_MEDIATEK |
 598                                                      BTUSB_WIDEBAND_SPEECH |
 599                                                      BTUSB_VALID_LE_STATES },
 600         { USB_DEVICE(0x0489, 0xe0e0), .driver_info = BTUSB_MEDIATEK |
 601                                                      BTUSB_WIDEBAND_SPEECH |
 602                                                      BTUSB_VALID_LE_STATES },
 603         { USB_DEVICE(0x0489, 0xe0f2), .driver_info = BTUSB_MEDIATEK |
 604                                                      BTUSB_WIDEBAND_SPEECH |
 605                                                      BTUSB_VALID_LE_STATES },
 606         { USB_DEVICE(0x04ca, 0x3802), .driver_info = BTUSB_MEDIATEK |
 607                                                      BTUSB_WIDEBAND_SPEECH |
 608                                                      BTUSB_VALID_LE_STATES },
 609         { USB_DEVICE(0x0e8d, 0x0608), .driver_info = BTUSB_MEDIATEK |
 610                                                      BTUSB_WIDEBAND_SPEECH |
 611                                                      BTUSB_VALID_LE_STATES },
 612         { USB_DEVICE(0x13d3, 0x3563), .driver_info = BTUSB_MEDIATEK |
 613                                                      BTUSB_WIDEBAND_SPEECH |
 614                                                      BTUSB_VALID_LE_STATES },
 615         { USB_DEVICE(0x13d3, 0x3564), .driver_info = BTUSB_MEDIATEK |
 616                                                      BTUSB_WIDEBAND_SPEECH |
 617                                                      BTUSB_VALID_LE_STATES },
 618         { USB_DEVICE(0x13d3, 0x3567), .driver_info = BTUSB_MEDIATEK |
 619                                                      BTUSB_WIDEBAND_SPEECH |
 620                                                      BTUSB_VALID_LE_STATES },
 621         { USB_DEVICE(0x13d3, 0x3578), .driver_info = BTUSB_MEDIATEK |
 622                                                      BTUSB_WIDEBAND_SPEECH |
 623                                                      BTUSB_VALID_LE_STATES },
 624         { USB_DEVICE(0x13d3, 0x3583), .driver_info = BTUSB_MEDIATEK |
 625                                                      BTUSB_WIDEBAND_SPEECH |
 626                                                      BTUSB_VALID_LE_STATES },
 627         { USB_DEVICE(0x13d3, 0x3606), .driver_info = BTUSB_MEDIATEK |
 628                                                      BTUSB_WIDEBAND_SPEECH |
 629                                                      BTUSB_VALID_LE_STATES },
 630
 631         /* MediaTek MT7922 Bluetooth devices */
 632         { USB_DEVICE(0x13d3, 0x3585), .driver_info = BTUSB_MEDIATEK |
 633                                                      BTUSB_WIDEBAND_SPEECH |
 634                                                      BTUSB_VALID_LE_STATES },
 635
 636         /* MediaTek MT7922A Bluetooth devices */
 637         { USB_DEVICE(0x0489, 0xe0d8), .driver_info = BTUSB_MEDIATEK |
 638                                                      BTUSB_WIDEBAND_SPEECH |
 639                                                      BTUSB_VALID_LE_STATES },
 640         { USB_DEVICE(0x0489, 0xe0d9), .driver_info = BTUSB_MEDIATEK |
 641                                                      BTUSB_WIDEBAND_SPEECH |
 642                                                      BTUSB_VALID_LE_STATES },
 643         { USB_DEVICE(0x0489, 0xe0e2), .driver_info = BTUSB_MEDIATEK |
 644                                                      BTUSB_WIDEBAND_SPEECH |
 645                                                      BTUSB_VALID_LE_STATES },
 646         { USB_DEVICE(0x0489, 0xe0e4), .driver_info = BTUSB_MEDIATEK |
 647                                                      BTUSB_WIDEBAND_SPEECH |
 648                                                      BTUSB_VALID_LE_STATES },
 649         { USB_DEVICE(0x0489, 0xe0f1), .driver_info = BTUSB_MEDIATEK |
 650                                                      BTUSB_WIDEBAND_SPEECH |
 651                                                      BTUSB_VALID_LE_STATES },
 652         { USB_DEVICE(0x0489, 0xe0f2), .driver_info = BTUSB_MEDIATEK |
 653                                                      BTUSB_WIDEBAND_SPEECH |
 654                                                      BTUSB_VALID_LE_STATES },
 655         { USB_DEVICE(0x0489, 0xe0f5), .driver_info = BTUSB_MEDIATEK |
 656                                                      BTUSB_WIDEBAND_SPEECH |
 657                                                      BTUSB_VALID_LE_STATES },
 658         { USB_DEVICE(0x0489, 0xe0f6), .driver_info = BTUSB_MEDIATEK |
 659                                                      BTUSB_WIDEBAND_SPEECH |
 660                                                      BTUSB_VALID_LE_STATES },
 661         { USB_DEVICE(0x0489, 0xe102), .driver_info = BTUSB_MEDIATEK |
 662                                                      BTUSB_WIDEBAND_SPEECH |
 663                                                      BTUSB_VALID_LE_STATES },
 664         { USB_DEVICE(0x04ca, 0x3804), .driver_info = BTUSB_MEDIATEK |
 665                                                      BTUSB_WIDEBAND_SPEECH |
 666                                                      BTUSB_VALID_LE_STATES },
 667         { USB_DEVICE(0x04ca, 0x38e4), .driver_info = BTUSB_MEDIATEK |
 668                                                      BTUSB_WIDEBAND_SPEECH |
 669                                                      BTUSB_VALID_LE_STATES },
 670         { USB_DEVICE(0x13d3, 0x3568), .driver_info = BTUSB_MEDIATEK |
 671                                                      BTUSB_WIDEBAND_SPEECH |
 672                                                      BTUSB_VALID_LE_STATES },
 673         { USB_DEVICE(0x13d3, 0x3605), .driver_info = BTUSB_MEDIATEK |
 674                                                      BTUSB_WIDEBAND_SPEECH |
 675                                                      BTUSB_VALID_LE_STATES },
 676         { USB_DEVICE(0x13d3, 0x3607), .driver_info = BTUSB_MEDIATEK |
 677                                                      BTUSB_WIDEBAND_SPEECH |
 678                                                      BTUSB_VALID_LE_STATES },
 679         { USB_DEVICE(0x13d3, 0x3614), .driver_info = BTUSB_MEDIATEK |
 680                                                      BTUSB_WIDEBAND_SPEECH |
 681                                                      BTUSB_VALID_LE_STATES },
 682         { USB_DEVICE(0x13d3, 0x3615), .driver_info = BTUSB_MEDIATEK |
 683                                                      BTUSB_WIDEBAND_SPEECH |
 684                                                      BTUSB_VALID_LE_STATES },
 685         { USB_DEVICE(0x35f5, 0x7922), .driver_info = BTUSB_MEDIATEK |
 686                                                      BTUSB_WIDEBAND_SPEECH |
 687                                                      BTUSB_VALID_LE_STATES },
 688
 689         /* Additional MediaTek MT7925 Bluetooth devices */
 690         { USB_DEVICE(0x0489, 0xe113), .driver_info = BTUSB_MEDIATEK |
 691                                                      BTUSB_WIDEBAND_SPEECH |
 692                                                      BTUSB_VALID_LE_STATES },
 693         { USB_DEVICE(0x13d3, 0x3602), .driver_info = BTUSB_MEDIATEK |
 694                                                      BTUSB_WIDEBAND_SPEECH |
 695                                                      BTUSB_VALID_LE_STATES },
 696         { USB_DEVICE(0x13d3, 0x3603), .driver_info = BTUSB_MEDIATEK |
 697                                                      BTUSB_WIDEBAND_SPEECH |
 698                                                      BTUSB_VALID_LE_STATES },
 699
 700         /* Additional Realtek 8723AE Bluetooth devices */
 701         { USB_DEVICE(0x0930, 0x021d), .driver_info = BTUSB_REALTEK },
 702         { USB_DEVICE(0x13d3, 0x3394), .driver_info = BTUSB_REALTEK },
 703
 704         /* Additional Realtek 8723BE Bluetooth devices */
 705         { USB_DEVICE(0x0489, 0xe085), .driver_info = BTUSB_REALTEK },
 706         { USB_DEVICE(0x0489, 0xe08b), .driver_info = BTUSB_REALTEK },
 707         { USB_DEVICE(0x04f2, 0xb49f), .driver_info = BTUSB_REALTEK },
 708         { USB_DEVICE(0x13d3, 0x3410), .driver_info = BTUSB_REALTEK },
 709         { USB_DEVICE(0x13d3, 0x3416), .driver_info = BTUSB_REALTEK },
 710         { USB_DEVICE(0x13d3, 0x3459), .driver_info = BTUSB_REALTEK },
 711         { USB_DEVICE(0x13d3, 0x3494), .driver_info = BTUSB_REALTEK },
 712
 713         /* Additional Realtek 8723BU Bluetooth devices */
 714         { USB_DEVICE(0x7392, 0xa611), .driver_info = BTUSB_REALTEK },
 715
 716         /* Additional Realtek 8723DE Bluetooth devices */
 717         { USB_DEVICE(0x0bda, 0xb009), .driver_info = BTUSB_REALTEK },
 718         { USB_DEVICE(0x2ff8, 0xb011), .driver_info = BTUSB_REALTEK },
 719
 720         /* Additional Realtek 8761BUV Bluetooth devices */
 721         { USB_DEVICE(0x2357, 0x0604), .driver_info = BTUSB_REALTEK |
 722                                                      BTUSB_WIDEBAND_SPEECH },
 723         { USB_DEVICE(0x0b05, 0x190e), .driver_info = BTUSB_REALTEK |
 724                                                      BTUSB_WIDEBAND_SPEECH },
 725         { USB_DEVICE(0x2550, 0x8761), .driver_info = BTUSB_REALTEK |
 726                                                      BTUSB_WIDEBAND_SPEECH },
 727         { USB_DEVICE(0x0bda, 0x8771), .driver_info = BTUSB_REALTEK |
 728                                                      BTUSB_WIDEBAND_SPEECH },
 729         { USB_DEVICE(0x6655, 0x8771), .driver_info = BTUSB_REALTEK |
 730                                                      BTUSB_WIDEBAND_SPEECH },
 731         { USB_DEVICE(0x7392, 0xc611), .driver_info = BTUSB_REALTEK |
 732                                                      BTUSB_WIDEBAND_SPEECH },
 733         { USB_DEVICE(0x2b89, 0x8761), .driver_info = BTUSB_REALTEK |
 734                                                      BTUSB_WIDEBAND_SPEECH },
 735
 736         /* Additional Realtek 8821AE Bluetooth devices */
 737         { USB_DEVICE(0x0b05, 0x17dc), .driver_info = BTUSB_REALTEK },
 738         { USB_DEVICE(0x13d3, 0x3414), .driver_info = BTUSB_REALTEK },
 739         { USB_DEVICE(0x13d3, 0x3458), .driver_info = BTUSB_REALTEK },
 740         { USB_DEVICE(0x13d3, 0x3461), .driver_info = BTUSB_REALTEK },
 741         { USB_DEVICE(0x13d3, 0x3462), .driver_info = BTUSB_REALTEK },
 742
 743         /* Additional Realtek 8822BE Bluetooth devices */
 744         { USB_DEVICE(0x13d3, 0x3526), .driver_info = BTUSB_REALTEK },
 745         { USB_DEVICE(0x0b05, 0x185c), .driver_info = BTUSB_REALTEK },
 746
 747         /* Additional Realtek 8822CE Bluetooth devices */
 748         { USB_DEVICE(0x04ca, 0x4005), .driver_info = BTUSB_REALTEK |
 749                                                      BTUSB_WIDEBAND_SPEECH },
 750         { USB_DEVICE(0x04c5, 0x161f), .driver_info = BTUSB_REALTEK |
 751                                                      BTUSB_WIDEBAND_SPEECH },
 752         { USB_DEVICE(0x0b05, 0x18ef), .driver_info = BTUSB_REALTEK |
 753                                                      BTUSB_WIDEBAND_SPEECH },
 754         { USB_DEVICE(0x13d3, 0x3548), .driver_info = BTUSB_REALTEK |
 755                                                      BTUSB_WIDEBAND_SPEECH },
 756         { USB_DEVICE(0x13d3, 0x3549), .driver_info = BTUSB_REALTEK |
 757                                                      BTUSB_WIDEBAND_SPEECH },
 758         { USB_DEVICE(0x13d3, 0x3553), .driver_info = BTUSB_REALTEK |
 759                                                      BTUSB_WIDEBAND_SPEECH },
 760         { USB_DEVICE(0x13d3, 0x3555), .driver_info = BTUSB_REALTEK |
 761                                                      BTUSB_WIDEBAND_SPEECH },
 762         { USB_DEVICE(0x2ff8, 0x3051), .driver_info = BTUSB_REALTEK |
 763                                                      BTUSB_WIDEBAND_SPEECH },
 764         { USB_DEVICE(0x1358, 0xc123), .driver_info = BTUSB_REALTEK |
 765                                                      BTUSB_WIDEBAND_SPEECH },
 766         { USB_DEVICE(0x0bda, 0xc123), .driver_info = BTUSB_REALTEK |
 767                                                      BTUSB_WIDEBAND_SPEECH },
 768         { USB_DEVICE(0x0cb5, 0xc547), .driver_info = BTUSB_REALTEK |
 769                                                      BTUSB_WIDEBAND_SPEECH },
 770
 771         /* Actions Semiconductor ATS2851 based devices */
 772         { USB_DEVICE(0x10d7, 0xb012), .driver_info = BTUSB_ACTIONS_SEMI },
 773
 774         /* Silicon Wave based devices */
 775         { USB_DEVICE(0x0c10, 0x0000), .driver_info = BTUSB_SWAVE },
 776
 777         { }     /* Terminating entry */
 778 };
 779
 780 /* The Bluetooth USB module build into some devices needs to be reset on resume,
 781  * this is a problem with the platform (likely shutting off all power) not with
 782  * the module itself. So we use a DMI list to match known broken platforms.
 783  */
 784 static const struct dmi_system_id btusb_needs_reset_resume_table[] = {
 785         {
 786                 /* Dell OptiPlex 3060 (QCA ROME device 0cf3:e007) */
 787                 .matches = {
 788                         DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
 789                         DMI_MATCH(DMI_PRODUCT_NAME, "OptiPlex 3060"),
 790                 },
 791         },
 792         {
 793                 /* Dell XPS 9360 (QCA ROME device 0cf3:e300) */
 794                 .matches = {
 795                         DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
 796                         DMI_MATCH(DMI_PRODUCT_NAME, "XPS 13 9360"),
 797                 },
 798         },
 799         {
 800                 /* Dell Inspiron 5565 (QCA ROME device 0cf3:e009) */
 801                 .matches = {
 802                         DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
 803                         DMI_MATCH(DMI_PRODUCT_NAME, "Inspiron 5565"),
 804                 },
 805         },
 806         {}
 807 };
 808
 809 struct qca_dump_info {
 810         /* fields for dump collection */
 811         u16 id_vendor;
 812         u16 id_product;
 813         u32 fw_version;
 814         u32 controller_id;
 815         u32 ram_dump_size;
 816         u16 ram_dump_seqno;
 817 };
 818
 819 #define BTUSB_MAX_ISOC_FRAMES   10
 820
 821 #define BTUSB_INTR_RUNNING      0
 822 #define BTUSB_BULK_RUNNING      1
 823 #define BTUSB_ISOC_RUNNING      2
 824 #define BTUSB_SUSPENDING        3
 825 #define BTUSB_DID_ISO_RESUME    4
 826 #define BTUSB_BOOTLOADER        5
 827 #define BTUSB_DOWNLOADING       6
 828 #define BTUSB_FIRMWARE_LOADED   7
 829 #define BTUSB_FIRMWARE_FAILED   8
 830 #define BTUSB_BOOTING           9
 831 #define BTUSB_DIAG_RUNNING      10
 832 #define BTUSB_OOB_WAKE_ENABLED  11
 833 #define BTUSB_HW_RESET_ACTIVE   12
 834 #define BTUSB_TX_WAIT_VND_EVT   13
 835 #define BTUSB_WAKEUP_AUTOSUSPEND        14
 836 #define BTUSB_USE_ALT3_FOR_WBS  15
 837 #define BTUSB_ALT6_CONTINUOUS_TX        16
 838 #define BTUSB_HW_SSR_ACTIVE     17
 839
 840 struct btusb_data {
 841         struct hci_dev       *hdev;
 842         struct usb_device    *udev;
 843         struct usb_interface *intf;
 844         struct usb_interface *isoc;
 845         struct usb_interface *diag;
 846         unsigned isoc_ifnum;
 847
 848         unsigned long flags;
 849
 850         bool poll_sync;
 851         int intr_interval;
 852         struct work_struct  work;
 853         struct work_struct  waker;
 854         struct delayed_work rx_work;
 855
 856         struct sk_buff_head acl_q;
 857
 858         struct usb_anchor deferred;
 859         struct usb_anchor tx_anchor;
 860         int tx_in_flight;
 861         spinlock_t txlock;
 862
 863         struct usb_anchor intr_anchor;
 864         struct usb_anchor bulk_anchor;
 865         struct usb_anchor isoc_anchor;
 866         struct usb_anchor diag_anchor;
 867         struct usb_anchor ctrl_anchor;
 868         spinlock_t rxlock;
 869
 870         struct sk_buff *evt_skb;
 871         struct sk_buff *acl_skb;
 872         struct sk_buff *sco_skb;
 873
 874         struct usb_endpoint_descriptor *intr_ep;
 875         struct usb_endpoint_descriptor *bulk_tx_ep;
 876         struct usb_endpoint_descriptor *bulk_rx_ep;
 877         struct usb_endpoint_descriptor *isoc_tx_ep;
 878         struct usb_endpoint_descriptor *isoc_rx_ep;
 879         struct usb_endpoint_descriptor *diag_tx_ep;
 880         struct usb_endpoint_descriptor *diag_rx_ep;
 881
 882         struct gpio_desc *reset_gpio;
 883
 884         __u8 cmdreq_type;
 885         __u8 cmdreq;
 886
 887         unsigned int sco_num;
 888         unsigned int air_mode;
 889         bool usb_alt6_packet_flow;
 890         int isoc_altsetting;
 891         int suspend_count;
 892
 893         int (*recv_event)(struct hci_dev *hdev, struct sk_buff *skb);
 894         int (*recv_acl)(struct hci_dev *hdev, struct sk_buff *skb);
 895         int (*recv_bulk)(struct btusb_data *data, void *buffer, int count);
 896
 897         int (*setup_on_usb)(struct hci_dev *hdev);
 898
 899         int (*suspend)(struct hci_dev *hdev);
 900         int (*resume)(struct hci_dev *hdev);
 901
 902         int oob_wake_irq;   /* irq for out-of-band wake-on-bt */
 903         unsigned cmd_timeout_cnt;
 904
 905         struct qca_dump_info qca_dump;
 906 };
 907
 908 static void btusb_reset(struct hci_dev *hdev)
 909 {
 910         struct btusb_data *data;
 911         int err;
 912
 913         if (hdev->reset) {
 914                 hdev->reset(hdev);
 915                 return;
 916         }
 917
 918         data = hci_get_drvdata(hdev);
 919         /* This is not an unbalanced PM reference since the device will reset */
 920         err = usb_autopm_get_interface(data->intf);
 921         if (err) {
 922                 bt_dev_err(hdev, "Failed usb_autopm_get_interface: %d", err);
 923                 return;
 924         }
 925
 926         bt_dev_err(hdev, "Resetting usb device.");
 927         usb_queue_reset_device(data->intf);
 928 }
 929
 930 static void btusb_intel_cmd_timeout(struct hci_dev *hdev)
 931 {
 932         struct btusb_data *data = hci_get_drvdata(hdev);
 933         struct gpio_desc *reset_gpio = data->reset_gpio;
 934         struct btintel_data *intel_data = hci_get_priv(hdev);
 935
 936         if (++data->cmd_timeout_cnt < 5)
 937                 return;
 938
 939         if (intel_data->acpi_reset_method) {
 940                 if (test_and_set_bit(INTEL_ACPI_RESET_ACTIVE, intel_data->flags)) {
 941                         bt_dev_err(hdev, "acpi: last reset failed ? Not resetting again");
 942                         return;
 943                 }
 944
 945                 bt_dev_err(hdev, "Initiating acpi reset method");
 946                 /* If ACPI reset method fails, lets try with legacy GPIO
 947                  * toggling
 948                  */
 949                 if (!intel_data->acpi_reset_method(hdev)) {
 950                         return;
 951                 }
 952         }
 953
 954         if (!reset_gpio) {
 955                 btusb_reset(hdev);
 956                 return;
 957         }
 958
 959         /*
 960          * Toggle the hard reset line if the platform provides one. The reset
 961          * is going to yank the device off the USB and then replug. So doing
 962          * once is enough. The cleanup is handled correctly on the way out
 963          * (standard USB disconnect), and the new device is detected cleanly
 964          * and bound to the driver again like it should be.
 965          */
 966         if (test_and_set_bit(BTUSB_HW_RESET_ACTIVE, &data->flags)) {
 967                 bt_dev_err(hdev, "last reset failed? Not resetting again");
 968                 return;
 969         }
 970
 971         bt_dev_err(hdev, "Initiating HW reset via gpio");
 972         gpiod_set_value_cansleep(reset_gpio, 1);
 973         msleep(100);
 974         gpiod_set_value_cansleep(reset_gpio, 0);
 975 }
 976
 977 #define RTK_DEVCOREDUMP_CODE_MEMDUMP            0x01
 978 #define RTK_DEVCOREDUMP_CODE_HW_ERR             0x02
 979 #define RTK_DEVCOREDUMP_CODE_CMD_TIMEOUT        0x03
 980
 981 #define RTK_SUB_EVENT_CODE_COREDUMP             0x34
 982
 983 struct rtk_dev_coredump_hdr {
 984         u8 type;
 985         u8 code;
 986         u8 reserved[2];
 987 } __packed;
 988
 989 static inline void btusb_rtl_alloc_devcoredump(struct hci_dev *hdev,
 990                 struct rtk_dev_coredump_hdr *hdr, u8 *buf, u32 len)
 991 {
 992         struct sk_buff *skb;
 993
 994         skb = alloc_skb(len + sizeof(*hdr), GFP_ATOMIC);
 995         if (!skb)
 996                 return;
 997
 998         skb_put_data(skb, hdr, sizeof(*hdr));
 999         if (len)
1000                 skb_put_data(skb, buf, len);
1001
1002         if (!hci_devcd_init(hdev, skb->len)) {
1003                 hci_devcd_append(hdev, skb);
1004                 hci_devcd_complete(hdev);
1005         } else {
1006                 bt_dev_err(hdev, "RTL: Failed to generate devcoredump");
1007                 kfree_skb(skb);
1008         }
1009 }
1010
1011 static void btusb_rtl_cmd_timeout(struct hci_dev *hdev)
1012 {
1013         struct btusb_data *data = hci_get_drvdata(hdev);
1014         struct gpio_desc *reset_gpio = data->reset_gpio;
1015         struct rtk_dev_coredump_hdr hdr = {
1016                 .type = RTK_DEVCOREDUMP_CODE_CMD_TIMEOUT,
1017         };
1018
1019         btusb_rtl_alloc_devcoredump(hdev, &hdr, NULL, 0);
1020
1021         if (++data->cmd_timeout_cnt < 5)
1022                 return;
1023
1024         if (!reset_gpio) {
1025                 btusb_reset(hdev);
1026                 return;
1027         }
1028
1029         /* Toggle the hard reset line. The Realtek device is going to
1030          * yank itself off the USB and then replug. The cleanup is handled
1031          * correctly on the way out (standard USB disconnect), and the new
1032          * device is detected cleanly and bound to the driver again like
1033          * it should be.
1034          */
1035         if (test_and_set_bit(BTUSB_HW_RESET_ACTIVE, &data->flags)) {
1036                 bt_dev_err(hdev, "last reset failed? Not resetting again");
1037                 return;
1038         }
1039
1040         bt_dev_err(hdev, "Reset Realtek device via gpio");
1041         gpiod_set_value_cansleep(reset_gpio, 1);
1042         msleep(200);
1043         gpiod_set_value_cansleep(reset_gpio, 0);
1044 }
1045
1046 static void btusb_rtl_hw_error(struct hci_dev *hdev, u8 code)
1047 {
1048         struct rtk_dev_coredump_hdr hdr = {
1049                 .type = RTK_DEVCOREDUMP_CODE_HW_ERR,
1050                 .code = code,
1051         };
1052
1053         bt_dev_err(hdev, "RTL: hw err, trigger devcoredump (%d)", code);
1054
1055         btusb_rtl_alloc_devcoredump(hdev, &hdr, NULL, 0);
1056 }
1057
1058 static void btusb_qca_cmd_timeout(struct hci_dev *hdev)
1059 {
1060         struct btusb_data *data = hci_get_drvdata(hdev);
1061         struct gpio_desc *reset_gpio = data->reset_gpio;
1062
1063         if (test_bit(BTUSB_HW_SSR_ACTIVE, &data->flags)) {
1064                 bt_dev_info(hdev, "Ramdump in progress, defer cmd_timeout");
1065                 return;
1066         }
1067
1068         if (++data->cmd_timeout_cnt < 5)
1069                 return;
1070
1071         if (reset_gpio) {
1072                 bt_dev_err(hdev, "Reset qca device via bt_en gpio");
1073
1074                 /* Toggle the hard reset line. The qca bt device is going to
1075                  * yank itself off the USB and then replug. The cleanup is handled
1076                  * correctly on the way out (standard USB disconnect), and the new
1077                  * device is detected cleanly and bound to the driver again like
1078                  * it should be.
1079                  */
1080                 if (test_and_set_bit(BTUSB_HW_RESET_ACTIVE, &data->flags)) {
1081                         bt_dev_err(hdev, "last reset failed? Not resetting again");
1082                         return;
1083                 }
1084
1085                 gpiod_set_value_cansleep(reset_gpio, 0);
1086                 msleep(200);
1087                 gpiod_set_value_cansleep(reset_gpio, 1);
1088
1089                 return;
1090         }
1091
1092         btusb_reset(hdev);
1093 }
1094
1095 static inline void btusb_free_frags(struct btusb_data *data)
1096 {
1097         unsigned long flags;
1098
1099         spin_lock_irqsave(&data->rxlock, flags);
1100
1101         dev_kfree_skb_irq(data->evt_skb);
1102         data->evt_skb = NULL;
1103
1104         dev_kfree_skb_irq(data->acl_skb);
1105         data->acl_skb = NULL;
1106
1107         dev_kfree_skb_irq(data->sco_skb);
1108         data->sco_skb = NULL;
1109
1110         spin_unlock_irqrestore(&data->rxlock, flags);
1111 }
1112
1113 static int btusb_recv_event(struct btusb_data *data, struct sk_buff *skb)
1114 {
1115         if (data->intr_interval) {
1116                 /* Trigger dequeue immediatelly if an event is received */
1117                 schedule_delayed_work(&data->rx_work, 0);
1118         }
1119
1120         return data->recv_event(data->hdev, skb);
1121 }
1122
1123 static int btusb_recv_intr(struct btusb_data *data, void *buffer, int count)
1124 {
1125         struct sk_buff *skb;
1126         unsigned long flags;
1127         int err = 0;
1128
1129         spin_lock_irqsave(&data->rxlock, flags);
1130         skb = data->evt_skb;
1131
1132         while (count) {
1133                 int len;
1134
1135                 if (!skb) {
1136                         skb = bt_skb_alloc(HCI_MAX_EVENT_SIZE, GFP_ATOMIC);
1137                         if (!skb) {
1138                                 err = -ENOMEM;
1139                                 break;
1140                         }
1141
1142                         hci_skb_pkt_type(skb) = HCI_EVENT_PKT;
1143                         hci_skb_expect(skb) = HCI_EVENT_HDR_SIZE;
1144                 }
1145
1146                 len = min_t(uint, hci_skb_expect(skb), count);
1147                 skb_put_data(skb, buffer, len);
1148
1149                 count -= len;
1150                 buffer += len;
1151                 hci_skb_expect(skb) -= len;
1152
1153                 if (skb->len == HCI_EVENT_HDR_SIZE) {
1154                         /* Complete event header */
1155                         hci_skb_expect(skb) = hci_event_hdr(skb)->plen;
1156
1157                         if (skb_tailroom(skb) < hci_skb_expect(skb)) {
1158                                 kfree_skb(skb);
1159                                 skb = NULL;
1160
1161                                 err = -EILSEQ;
1162                                 break;
1163                         }
1164                 }
1165
1166                 if (!hci_skb_expect(skb)) {
1167                         /* Complete frame */
1168                         btusb_recv_event(data, skb);
1169                         skb = NULL;
1170                 }
1171         }
1172
1173         data->evt_skb = skb;
1174         spin_unlock_irqrestore(&data->rxlock, flags);
1175
1176         return err;
1177 }
1178
1179 static int btusb_recv_acl(struct btusb_data *data, struct sk_buff *skb)
1180 {
1181         /* Only queue ACL packet if intr_interval is set as it means
1182          * force_poll_sync has been enabled.
1183          */
1184         if (!data->intr_interval)
1185                 return data->recv_acl(data->hdev, skb);
1186
1187         skb_queue_tail(&data->acl_q, skb);
1188         schedule_delayed_work(&data->rx_work, data->intr_interval);
1189
1190         return 0;
1191 }
1192
1193 static int btusb_recv_bulk(struct btusb_data *data, void *buffer, int count)
1194 {
1195         struct sk_buff *skb;
1196         unsigned long flags;
1197         int err = 0;
1198
1199         spin_lock_irqsave(&data->rxlock, flags);
1200         skb = data->acl_skb;
1201
1202         while (count) {
1203                 int len;
1204
1205                 if (!skb) {
1206                         skb = bt_skb_alloc(HCI_MAX_FRAME_SIZE, GFP_ATOMIC);
1207                         if (!skb) {
1208                                 err = -ENOMEM;
1209                                 break;
1210                         }
1211
1212                         hci_skb_pkt_type(skb) = HCI_ACLDATA_PKT;
1213                         hci_skb_expect(skb) = HCI_ACL_HDR_SIZE;
1214                 }
1215
1216                 len = min_t(uint, hci_skb_expect(skb), count);
1217                 skb_put_data(skb, buffer, len);
1218
1219                 count -= len;
1220                 buffer += len;
1221                 hci_skb_expect(skb) -= len;
1222
1223                 if (skb->len == HCI_ACL_HDR_SIZE) {
1224                         __le16 dlen = hci_acl_hdr(skb)->dlen;
1225
1226                         /* Complete ACL header */
1227                         hci_skb_expect(skb) = __le16_to_cpu(dlen);
1228
1229                         if (skb_tailroom(skb) < hci_skb_expect(skb)) {
1230                                 kfree_skb(skb);
1231                                 skb = NULL;
1232
1233                                 err = -EILSEQ;
1234                                 break;
1235                         }
1236                 }
1237
1238                 if (!hci_skb_expect(skb)) {
1239                         /* Complete frame */
1240                         btusb_recv_acl(data, skb);
1241                         skb = NULL;
1242                 }
1243         }
1244
1245         data->acl_skb = skb;
1246         spin_unlock_irqrestore(&data->rxlock, flags);
1247
1248         return err;
1249 }
1250
1251 static bool btusb_validate_sco_handle(struct hci_dev *hdev,
1252                                       struct hci_sco_hdr *hdr)
1253 {
1254         __u16 handle;
1255
1256         if (hci_dev_test_flag(hdev, HCI_USER_CHANNEL))
1257                 // Can't validate, userspace controls everything.
1258                 return true;
1259
1260         /*
1261          * USB isochronous transfers are not designed to be reliable and may
1262          * lose fragments.  When this happens, the next first fragment
1263          * encountered might actually be a continuation fragment.
1264          * Validate the handle to detect it and drop it, or else the upper
1265          * layer will get garbage for a while.
1266          */
1267
1268         handle = hci_handle(__le16_to_cpu(hdr->handle));
1269
1270         switch (hci_conn_lookup_type(hdev, handle)) {
1271         case SCO_LINK:
1272         case ESCO_LINK:
1273                 return true;
1274         default:
1275                 return false;
1276         }
1277 }
1278
1279 static int btusb_recv_isoc(struct btusb_data *data, void *buffer, int count)
1280 {
1281         struct sk_buff *skb;
1282         unsigned long flags;
1283         int err = 0;
1284
1285         spin_lock_irqsave(&data->rxlock, flags);
1286         skb = data->sco_skb;
1287
1288         while (count) {
1289                 int len;
1290
1291                 if (!skb) {
1292                         skb = bt_skb_alloc(HCI_MAX_SCO_SIZE, GFP_ATOMIC);
1293                         if (!skb) {
1294                                 err = -ENOMEM;
1295                                 break;
1296                         }
1297
1298                         hci_skb_pkt_type(skb) = HCI_SCODATA_PKT;
1299                         hci_skb_expect(skb) = HCI_SCO_HDR_SIZE;
1300                 }
1301
1302                 len = min_t(uint, hci_skb_expect(skb), count);
1303                 skb_put_data(skb, buffer, len);
1304
1305                 count -= len;
1306                 buffer += len;
1307                 hci_skb_expect(skb) -= len;
1308
1309                 if (skb->len == HCI_SCO_HDR_SIZE) {
1310                         /* Complete SCO header */
1311                         struct hci_sco_hdr *hdr = hci_sco_hdr(skb);
1312
1313                         hci_skb_expect(skb) = hdr->dlen;
1314
1315                         if (skb_tailroom(skb) < hci_skb_expect(skb) ||
1316                             !btusb_validate_sco_handle(data->hdev, hdr)) {
1317                                 kfree_skb(skb);
1318                                 skb = NULL;
1319
1320                                 err = -EILSEQ;
1321                                 break;
1322                         }
1323                 }
1324
1325                 if (!hci_skb_expect(skb)) {
1326                         /* Complete frame */
1327                         hci_recv_frame(data->hdev, skb);
1328                         skb = NULL;
1329                 }
1330         }
1331
1332         data->sco_skb = skb;
1333         spin_unlock_irqrestore(&data->rxlock, flags);
1334
1335         return err;
1336 }
1337
1338 static void btusb_intr_complete(struct urb *urb)
1339 {
1340         struct hci_dev *hdev = urb->context;
1341         struct btusb_data *data = hci_get_drvdata(hdev);
1342         int err;
1343
1344         BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
1345                urb->actual_length);
1346
1347         if (!test_bit(HCI_RUNNING, &hdev->flags))
1348                 return;
1349
1350         if (urb->status == 0) {
1351                 hdev->stat.byte_rx += urb->actual_length;
1352
1353                 if (btusb_recv_intr(data, urb->transfer_buffer,
1354                                     urb->actual_length) < 0) {
1355                         bt_dev_err(hdev, "corrupted event packet");
1356                         hdev->stat.err_rx++;
1357                 }
1358         } else if (urb->status == -ENOENT) {
1359                 /* Avoid suspend failed when usb_kill_urb */
1360                 return;
1361         }
1362
1363         if (!test_bit(BTUSB_INTR_RUNNING, &data->flags))
1364                 return;
1365
1366         usb_mark_last_busy(data->udev);
1367         usb_anchor_urb(urb, &data->intr_anchor);
1368
1369         err = usb_submit_urb(urb, GFP_ATOMIC);
1370         if (err < 0) {
1371                 /* -EPERM: urb is being killed;
1372                  * -ENODEV: device got disconnected
1373                  */
1374                 if (err != -EPERM && err != -ENODEV)
1375                         bt_dev_err(hdev, "urb %p failed to resubmit (%d)",
1376                                    urb, -err);
1377                 if (err != -EPERM)
1378                         hci_cmd_sync_cancel(hdev, -err);
1379                 usb_unanchor_urb(urb);
1380         }
1381 }
1382
1383 static int btusb_submit_intr_urb(struct hci_dev *hdev, gfp_t mem_flags)
1384 {
1385         struct btusb_data *data = hci_get_drvdata(hdev);
1386         struct urb *urb;
1387         unsigned char *buf;
1388         unsigned int pipe;
1389         int err, size;
1390
1391         BT_DBG("%s", hdev->name);
1392
1393         if (!data->intr_ep)
1394                 return -ENODEV;
1395
1396         urb = usb_alloc_urb(0, mem_flags);
1397         if (!urb)
1398                 return -ENOMEM;
1399
1400         size = le16_to_cpu(data->intr_ep->wMaxPacketSize);
1401
1402         buf = kmalloc(size, mem_flags);
1403         if (!buf) {
1404                 usb_free_urb(urb);
1405                 return -ENOMEM;
1406         }
1407
1408         pipe = usb_rcvintpipe(data->udev, data->intr_ep->bEndpointAddress);
1409
1410         usb_fill_int_urb(urb, data->udev, pipe, buf, size,
1411                          btusb_intr_complete, hdev, data->intr_ep->bInterval);
1412
1413         urb->transfer_flags |= URB_FREE_BUFFER;
1414
1415         usb_anchor_urb(urb, &data->intr_anchor);
1416
1417         err = usb_submit_urb(urb, mem_flags);
1418         if (err < 0) {
1419                 if (err != -EPERM && err != -ENODEV)
1420                         bt_dev_err(hdev, "urb %p submission failed (%d)",
1421                                    urb, -err);
1422                 if (err != -EPERM)
1423                         hci_cmd_sync_cancel(hdev, -err);
1424                 usb_unanchor_urb(urb);
1425         }
1426
1427         /* Only initialize intr_interval if URB poll sync is enabled */
1428         if (!data->poll_sync)
1429                 goto done;
1430
1431         /* The units are frames (milliseconds) for full and low speed devices,
1432          * and microframes (1/8 millisecond) for highspeed and SuperSpeed
1433          * devices.
1434          *
1435          * This is done once on open/resume so it shouldn't change even if
1436          * force_poll_sync changes.
1437          */
1438         switch (urb->dev->speed) {
1439         case USB_SPEED_SUPER_PLUS:
1440         case USB_SPEED_SUPER:   /* units are 125us */
1441                 data->intr_interval = usecs_to_jiffies(urb->interval * 125);
1442                 break;
1443         default:
1444                 data->intr_interval = msecs_to_jiffies(urb->interval);
1445                 break;
1446         }
1447
1448 done:
1449         usb_free_urb(urb);
1450
1451         return err;
1452 }
1453
1454 static void btusb_bulk_complete(struct urb *urb)
1455 {
1456         struct hci_dev *hdev = urb->context;
1457         struct btusb_data *data = hci_get_drvdata(hdev);
1458         int err;
1459
1460         BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
1461                urb->actual_length);
1462
1463         if (!test_bit(HCI_RUNNING, &hdev->flags))
1464                 return;
1465
1466         if (urb->status == 0) {
1467                 hdev->stat.byte_rx += urb->actual_length;
1468
1469                 if (data->recv_bulk(data, urb->transfer_buffer,
1470                                     urb->actual_length) < 0) {
1471                         bt_dev_err(hdev, "corrupted ACL packet");
1472                         hdev->stat.err_rx++;
1473                 }
1474         } else if (urb->status == -ENOENT) {
1475                 /* Avoid suspend failed when usb_kill_urb */
1476                 return;
1477         }
1478
1479         if (!test_bit(BTUSB_BULK_RUNNING, &data->flags))
1480                 return;
1481
1482         usb_anchor_urb(urb, &data->bulk_anchor);
1483         usb_mark_last_busy(data->udev);
1484
1485         err = usb_submit_urb(urb, GFP_ATOMIC);
1486         if (err < 0) {
1487                 /* -EPERM: urb is being killed;
1488                  * -ENODEV: device got disconnected
1489                  */
1490                 if (err != -EPERM && err != -ENODEV)
1491                         bt_dev_err(hdev, "urb %p failed to resubmit (%d)",
1492                                    urb, -err);
1493                 usb_unanchor_urb(urb);
1494         }
1495 }
1496
1497 static int btusb_submit_bulk_urb(struct hci_dev *hdev, gfp_t mem_flags)
1498 {
1499         struct btusb_data *data = hci_get_drvdata(hdev);
1500         struct urb *urb;
1501         unsigned char *buf;
1502         unsigned int pipe;
1503         int err, size = HCI_MAX_FRAME_SIZE;
1504
1505         BT_DBG("%s", hdev->name);
1506
1507         if (!data->bulk_rx_ep)
1508                 return -ENODEV;
1509
1510         urb = usb_alloc_urb(0, mem_flags);
1511         if (!urb)
1512                 return -ENOMEM;
1513
1514         buf = kmalloc(size, mem_flags);
1515         if (!buf) {
1516                 usb_free_urb(urb);
1517                 return -ENOMEM;
1518         }
1519
1520         pipe = usb_rcvbulkpipe(data->udev, data->bulk_rx_ep->bEndpointAddress);
1521
1522         usb_fill_bulk_urb(urb, data->udev, pipe, buf, size,
1523                           btusb_bulk_complete, hdev);
1524
1525         urb->transfer_flags |= URB_FREE_BUFFER;
1526
1527         usb_mark_last_busy(data->udev);
1528         usb_anchor_urb(urb, &data->bulk_anchor);
1529
1530         err = usb_submit_urb(urb, mem_flags);
1531         if (err < 0) {
1532                 if (err != -EPERM && err != -ENODEV)
1533                         bt_dev_err(hdev, "urb %p submission failed (%d)",
1534                                    urb, -err);
1535                 usb_unanchor_urb(urb);
1536         }
1537
1538         usb_free_urb(urb);
1539
1540         return err;
1541 }
1542
1543 static void btusb_isoc_complete(struct urb *urb)
1544 {
1545         struct hci_dev *hdev = urb->context;
1546         struct btusb_data *data = hci_get_drvdata(hdev);
1547         int i, err;
1548
1549         BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
1550                urb->actual_length);
1551
1552         if (!test_bit(HCI_RUNNING, &hdev->flags))
1553                 return;
1554
1555         if (urb->status == 0) {
1556                 for (i = 0; i < urb->number_of_packets; i++) {
1557                         unsigned int offset = urb->iso_frame_desc[i].offset;
1558                         unsigned int length = urb->iso_frame_desc[i].actual_length;
1559
1560                         if (urb->iso_frame_desc[i].status)
1561                                 continue;
1562
1563                         hdev->stat.byte_rx += length;
1564
1565                         if (btusb_recv_isoc(data, urb->transfer_buffer + offset,
1566                                             length) < 0) {
1567                                 bt_dev_err(hdev, "corrupted SCO packet");
1568                                 hdev->stat.err_rx++;
1569                         }
1570                 }
1571         } else if (urb->status == -ENOENT) {
1572                 /* Avoid suspend failed when usb_kill_urb */
1573                 return;
1574         }
1575
1576         if (!test_bit(BTUSB_ISOC_RUNNING, &data->flags))
1577                 return;
1578
1579         usb_anchor_urb(urb, &data->isoc_anchor);
1580
1581         err = usb_submit_urb(urb, GFP_ATOMIC);
1582         if (err < 0) {
1583                 /* -EPERM: urb is being killed;
1584                  * -ENODEV: device got disconnected
1585                  */
1586                 if (err != -EPERM && err != -ENODEV)
1587                         bt_dev_err(hdev, "urb %p failed to resubmit (%d)",
1588                                    urb, -err);
1589                 usb_unanchor_urb(urb);
1590         }
1591 }
1592
1593 static inline void __fill_isoc_descriptor_msbc(struct urb *urb, int len,
1594                                                int mtu, struct btusb_data *data)
1595 {
1596         int i = 0, offset = 0;
1597         unsigned int interval;
1598
1599         BT_DBG("len %d mtu %d", len, mtu);
1600
1601         /* For mSBC ALT 6 settings some chips need to transmit the data
1602          * continuously without the zero length of USB packets.
1603          */
1604         if (test_bit(BTUSB_ALT6_CONTINUOUS_TX, &data->flags))
1605                 goto ignore_usb_alt6_packet_flow;
1606
1607         /* For mSBC ALT 6 setting the host will send the packet at continuous
1608          * flow. As per core spec 5, vol 4, part B, table 2.1. For ALT setting
1609          * 6 the HCI PACKET INTERVAL should be 7.5ms for every usb packets.
1610          * To maintain the rate we send 63bytes of usb packets alternatively for
1611          * 7ms and 8ms to maintain the rate as 7.5ms.
1612          */
1613         if (data->usb_alt6_packet_flow) {
1614                 interval = 7;
1615                 data->usb_alt6_packet_flow = false;
1616         } else {
1617                 interval = 6;
1618                 data->usb_alt6_packet_flow = true;
1619         }
1620
1621         for (i = 0; i < interval; i++) {
1622                 urb->iso_frame_desc[i].offset = offset;
1623                 urb->iso_frame_desc[i].length = offset;
1624         }
1625
1626 ignore_usb_alt6_packet_flow:
1627         if (len && i < BTUSB_MAX_ISOC_FRAMES) {
1628                 urb->iso_frame_desc[i].offset = offset;
1629                 urb->iso_frame_desc[i].length = len;
1630                 i++;
1631         }
1632
1633         urb->number_of_packets = i;
1634 }
1635
1636 static inline void __fill_isoc_descriptor(struct urb *urb, int len, int mtu)
1637 {
1638         int i, offset = 0;
1639
1640         BT_DBG("len %d mtu %d", len, mtu);
1641
1642         for (i = 0; i < BTUSB_MAX_ISOC_FRAMES && len >= mtu;
1643                                         i++, offset += mtu, len -= mtu) {
1644                 urb->iso_frame_desc[i].offset = offset;
1645                 urb->iso_frame_desc[i].length = mtu;
1646         }
1647
1648         if (len && i < BTUSB_MAX_ISOC_FRAMES) {
1649                 urb->iso_frame_desc[i].offset = offset;
1650                 urb->iso_frame_desc[i].length = len;
1651                 i++;
1652         }
1653
1654         urb->number_of_packets = i;
1655 }
1656
1657 static int btusb_submit_isoc_urb(struct hci_dev *hdev, gfp_t mem_flags)
1658 {
1659         struct btusb_data *data = hci_get_drvdata(hdev);
1660         struct urb *urb;
1661         unsigned char *buf;
1662         unsigned int pipe;
1663         int err, size;
1664
1665         BT_DBG("%s", hdev->name);
1666
1667         if (!data->isoc_rx_ep)
1668                 return -ENODEV;
1669
1670         urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, mem_flags);
1671         if (!urb)
1672                 return -ENOMEM;
1673
1674         size = le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize) *
1675                                                 BTUSB_MAX_ISOC_FRAMES;
1676
1677         buf = kmalloc(size, mem_flags);
1678         if (!buf) {
1679                 usb_free_urb(urb);
1680                 return -ENOMEM;
1681         }
1682
1683         pipe = usb_rcvisocpipe(data->udev, data->isoc_rx_ep->bEndpointAddress);
1684
1685         usb_fill_int_urb(urb, data->udev, pipe, buf, size, btusb_isoc_complete,
1686                          hdev, data->isoc_rx_ep->bInterval);
1687
1688         urb->transfer_flags = URB_FREE_BUFFER | URB_ISO_ASAP;
1689
1690         __fill_isoc_descriptor(urb, size,
1691                                le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize));
1692
1693         usb_anchor_urb(urb, &data->isoc_anchor);
1694
1695         err = usb_submit_urb(urb, mem_flags);
1696         if (err < 0) {
1697                 if (err != -EPERM && err != -ENODEV)
1698                         bt_dev_err(hdev, "urb %p submission failed (%d)",
1699                                    urb, -err);
1700                 usb_unanchor_urb(urb);
1701         }
1702
1703         usb_free_urb(urb);
1704
1705         return err;
1706 }
1707
1708 static void btusb_diag_complete(struct urb *urb)
1709 {
1710         struct hci_dev *hdev = urb->context;
1711         struct btusb_data *data = hci_get_drvdata(hdev);
1712         int err;
1713
1714         BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
1715                urb->actual_length);
1716
1717         if (urb->status == 0) {
1718                 struct sk_buff *skb;
1719
1720                 skb = bt_skb_alloc(urb->actual_length, GFP_ATOMIC);
1721                 if (skb) {
1722                         skb_put_data(skb, urb->transfer_buffer,
1723                                      urb->actual_length);
1724                         hci_recv_diag(hdev, skb);
1725                 }
1726         } else if (urb->status == -ENOENT) {
1727                 /* Avoid suspend failed when usb_kill_urb */
1728                 return;
1729         }
1730
1731         if (!test_bit(BTUSB_DIAG_RUNNING, &data->flags))
1732                 return;
1733
1734         usb_anchor_urb(urb, &data->diag_anchor);
1735         usb_mark_last_busy(data->udev);
1736
1737         err = usb_submit_urb(urb, GFP_ATOMIC);
1738         if (err < 0) {
1739                 /* -EPERM: urb is being killed;
1740                  * -ENODEV: device got disconnected
1741                  */
1742                 if (err != -EPERM && err != -ENODEV)
1743                         bt_dev_err(hdev, "urb %p failed to resubmit (%d)",
1744                                    urb, -err);
1745                 usb_unanchor_urb(urb);
1746         }
1747 }
1748
1749 static int btusb_submit_diag_urb(struct hci_dev *hdev, gfp_t mem_flags)
1750 {
1751         struct btusb_data *data = hci_get_drvdata(hdev);
1752         struct urb *urb;
1753         unsigned char *buf;
1754         unsigned int pipe;
1755         int err, size = HCI_MAX_FRAME_SIZE;
1756
1757         BT_DBG("%s", hdev->name);
1758
1759         if (!data->diag_rx_ep)
1760                 return -ENODEV;
1761
1762         urb = usb_alloc_urb(0, mem_flags);
1763         if (!urb)
1764                 return -ENOMEM;
1765
1766         buf = kmalloc(size, mem_flags);
1767         if (!buf) {
1768                 usb_free_urb(urb);
1769                 return -ENOMEM;
1770         }
1771
1772         pipe = usb_rcvbulkpipe(data->udev, data->diag_rx_ep->bEndpointAddress);
1773
1774         usb_fill_bulk_urb(urb, data->udev, pipe, buf, size,
1775                           btusb_diag_complete, hdev);
1776
1777         urb->transfer_flags |= URB_FREE_BUFFER;
1778
1779         usb_mark_last_busy(data->udev);
1780         usb_anchor_urb(urb, &data->diag_anchor);
1781
1782         err = usb_submit_urb(urb, mem_flags);
1783         if (err < 0) {
1784                 if (err != -EPERM && err != -ENODEV)
1785                         bt_dev_err(hdev, "urb %p submission failed (%d)",
1786                                    urb, -err);
1787                 usb_unanchor_urb(urb);
1788         }
1789
1790         usb_free_urb(urb);
1791
1792         return err;
1793 }
1794
1795 static void btusb_tx_complete(struct urb *urb)
1796 {
1797         struct sk_buff *skb = urb->context;
1798         struct hci_dev *hdev = (struct hci_dev *)skb->dev;
1799         struct btusb_data *data = hci_get_drvdata(hdev);
1800         unsigned long flags;
1801
1802         BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
1803                urb->actual_length);
1804
1805         if (!test_bit(HCI_RUNNING, &hdev->flags))
1806                 goto done;
1807
1808         if (!urb->status) {
1809                 hdev->stat.byte_tx += urb->transfer_buffer_length;
1810         } else {
1811                 if (hci_skb_pkt_type(skb) == HCI_COMMAND_PKT)
1812                         hci_cmd_sync_cancel(hdev, -urb->status);
1813                 hdev->stat.err_tx++;
1814         }
1815
1816 done:
1817         spin_lock_irqsave(&data->txlock, flags);
1818         data->tx_in_flight--;
1819         spin_unlock_irqrestore(&data->txlock, flags);
1820
1821         kfree(urb->setup_packet);
1822
1823         kfree_skb(skb);
1824 }
1825
1826 static void btusb_isoc_tx_complete(struct urb *urb)
1827 {
1828         struct sk_buff *skb = urb->context;
1829         struct hci_dev *hdev = (struct hci_dev *)skb->dev;
1830
1831         BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
1832                urb->actual_length);
1833
1834         if (!test_bit(HCI_RUNNING, &hdev->flags))
1835                 goto done;
1836
1837         if (!urb->status)
1838                 hdev->stat.byte_tx += urb->transfer_buffer_length;
1839         else
1840                 hdev->stat.err_tx++;
1841
1842 done:
1843         kfree(urb->setup_packet);
1844
1845         kfree_skb(skb);
1846 }
1847
1848 static int btusb_open(struct hci_dev *hdev)
1849 {
1850         struct btusb_data *data = hci_get_drvdata(hdev);
1851         int err;
1852
1853         BT_DBG("%s", hdev->name);
1854
1855         err = usb_autopm_get_interface(data->intf);
1856         if (err < 0)
1857                 return err;
1858
1859         /* Patching USB firmware files prior to starting any URBs of HCI path
1860          * It is more safe to use USB bulk channel for downloading USB patch
1861          */
1862         if (data->setup_on_usb) {
1863                 err = data->setup_on_usb(hdev);
1864                 if (err < 0)
1865                         goto setup_fail;
1866         }
1867
1868         data->intf->needs_remote_wakeup = 1;
1869
1870         if (test_and_set_bit(BTUSB_INTR_RUNNING, &data->flags))
1871                 goto done;
1872
1873         err = btusb_submit_intr_urb(hdev, GFP_KERNEL);
1874         if (err < 0)
1875                 goto failed;
1876
1877         err = btusb_submit_bulk_urb(hdev, GFP_KERNEL);
1878         if (err < 0) {
1879                 usb_kill_anchored_urbs(&data->intr_anchor);
1880                 goto failed;
1881         }
1882
1883         set_bit(BTUSB_BULK_RUNNING, &data->flags);
1884         btusb_submit_bulk_urb(hdev, GFP_KERNEL);
1885
1886         if (data->diag) {
1887                 if (!btusb_submit_diag_urb(hdev, GFP_KERNEL))
1888                         set_bit(BTUSB_DIAG_RUNNING, &data->flags);
1889         }
1890
1891 done:
1892         usb_autopm_put_interface(data->intf);
1893         return 0;
1894
1895 failed:
1896         clear_bit(BTUSB_INTR_RUNNING, &data->flags);
1897 setup_fail:
1898         usb_autopm_put_interface(data->intf);
1899         return err;
1900 }
1901
1902 static void btusb_stop_traffic(struct btusb_data *data)
1903 {
1904         usb_kill_anchored_urbs(&data->intr_anchor);
1905         usb_kill_anchored_urbs(&data->bulk_anchor);
1906         usb_kill_anchored_urbs(&data->isoc_anchor);
1907         usb_kill_anchored_urbs(&data->diag_anchor);
1908         usb_kill_anchored_urbs(&data->ctrl_anchor);
1909 }
1910
1911 static int btusb_close(struct hci_dev *hdev)
1912 {
1913         struct btusb_data *data = hci_get_drvdata(hdev);
1914         int err;
1915
1916         BT_DBG("%s", hdev->name);
1917
1918         cancel_delayed_work(&data->rx_work);
1919         cancel_work_sync(&data->work);
1920         cancel_work_sync(&data->waker);
1921
1922         skb_queue_purge(&data->acl_q);
1923
1924         clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
1925         clear_bit(BTUSB_BULK_RUNNING, &data->flags);
1926         clear_bit(BTUSB_INTR_RUNNING, &data->flags);
1927         clear_bit(BTUSB_DIAG_RUNNING, &data->flags);
1928
1929         btusb_stop_traffic(data);
1930         btusb_free_frags(data);
1931
1932         err = usb_autopm_get_interface(data->intf);
1933         if (err < 0)
1934                 goto failed;
1935
1936         data->intf->needs_remote_wakeup = 0;
1937
1938         /* Enable remote wake up for auto-suspend */
1939         if (test_bit(BTUSB_WAKEUP_AUTOSUSPEND, &data->flags))
1940                 data->intf->needs_remote_wakeup = 1;
1941
1942         usb_autopm_put_interface(data->intf);
1943
1944 failed:
1945         usb_scuttle_anchored_urbs(&data->deferred);
1946         return 0;
1947 }
1948
1949 static int btusb_flush(struct hci_dev *hdev)
1950 {
1951         struct btusb_data *data = hci_get_drvdata(hdev);
1952
1953         BT_DBG("%s", hdev->name);
1954
1955         cancel_delayed_work(&data->rx_work);
1956
1957         skb_queue_purge(&data->acl_q);
1958
1959         usb_kill_anchored_urbs(&data->tx_anchor);
1960         btusb_free_frags(data);
1961
1962         return 0;
1963 }
1964
1965 static struct urb *alloc_ctrl_urb(struct hci_dev *hdev, struct sk_buff *skb)
1966 {
1967         struct btusb_data *data = hci_get_drvdata(hdev);
1968         struct usb_ctrlrequest *dr;
1969         struct urb *urb;
1970         unsigned int pipe;
1971
1972         urb = usb_alloc_urb(0, GFP_KERNEL);
1973         if (!urb)
1974                 return ERR_PTR(-ENOMEM);
1975
1976         dr = kmalloc(sizeof(*dr), GFP_KERNEL);
1977         if (!dr) {
1978                 usb_free_urb(urb);
1979                 return ERR_PTR(-ENOMEM);
1980         }
1981
1982         dr->bRequestType = data->cmdreq_type;
1983         dr->bRequest     = data->cmdreq;
1984         dr->wIndex       = 0;
1985         dr->wValue       = 0;
1986         dr->wLength      = __cpu_to_le16(skb->len);
1987
1988         pipe = usb_sndctrlpipe(data->udev, 0x00);
1989
1990         usb_fill_control_urb(urb, data->udev, pipe, (void *)dr,
1991                              skb->data, skb->len, btusb_tx_complete, skb);
1992
1993         skb->dev = (void *)hdev;
1994
1995         return urb;
1996 }
1997
1998 static struct urb *alloc_bulk_urb(struct hci_dev *hdev, struct sk_buff *skb)
1999 {
2000         struct btusb_data *data = hci_get_drvdata(hdev);
2001         struct urb *urb;
2002         unsigned int pipe;
2003
2004         if (!data->bulk_tx_ep)
2005                 return ERR_PTR(-ENODEV);
2006
2007         urb = usb_alloc_urb(0, GFP_KERNEL);
2008         if (!urb)
2009                 return ERR_PTR(-ENOMEM);
2010
2011         pipe = usb_sndbulkpipe(data->udev, data->bulk_tx_ep->bEndpointAddress);
2012
2013         usb_fill_bulk_urb(urb, data->udev, pipe,
2014                           skb->data, skb->len, btusb_tx_complete, skb);
2015
2016         skb->dev = (void *)hdev;
2017
2018         return urb;
2019 }
2020
2021 static struct urb *alloc_isoc_urb(struct hci_dev *hdev, struct sk_buff *skb)
2022 {
2023         struct btusb_data *data = hci_get_drvdata(hdev);
2024         struct urb *urb;
2025         unsigned int pipe;
2026
2027         if (!data->isoc_tx_ep)
2028                 return ERR_PTR(-ENODEV);
2029
2030         urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, GFP_KERNEL);
2031         if (!urb)
2032                 return ERR_PTR(-ENOMEM);
2033
2034         pipe = usb_sndisocpipe(data->udev, data->isoc_tx_ep->bEndpointAddress);
2035
2036         usb_fill_int_urb(urb, data->udev, pipe,
2037                          skb->data, skb->len, btusb_isoc_tx_complete,
2038                          skb, data->isoc_tx_ep->bInterval);
2039
2040         urb->transfer_flags  = URB_ISO_ASAP;
2041
2042         if (data->isoc_altsetting == 6)
2043                 __fill_isoc_descriptor_msbc(urb, skb->len,
2044                                             le16_to_cpu(data->isoc_tx_ep->wMaxPacketSize),
2045                                             data);
2046         else
2047                 __fill_isoc_descriptor(urb, skb->len,
2048                                        le16_to_cpu(data->isoc_tx_ep->wMaxPacketSize));
2049         skb->dev = (void *)hdev;
2050
2051         return urb;
2052 }
2053
2054 static int submit_tx_urb(struct hci_dev *hdev, struct urb *urb)
2055 {
2056         struct btusb_data *data = hci_get_drvdata(hdev);
2057         int err;
2058
2059         usb_anchor_urb(urb, &data->tx_anchor);
2060
2061         err = usb_submit_urb(urb, GFP_KERNEL);
2062         if (err < 0) {
2063                 if (err != -EPERM && err != -ENODEV)
2064                         bt_dev_err(hdev, "urb %p submission failed (%d)",
2065                                    urb, -err);
2066                 kfree(urb->setup_packet);
2067                 usb_unanchor_urb(urb);
2068         } else {
2069                 usb_mark_last_busy(data->udev);
2070         }
2071
2072         usb_free_urb(urb);
2073         return err;
2074 }
2075
2076 static int submit_or_queue_tx_urb(struct hci_dev *hdev, struct urb *urb)
2077 {
2078         struct btusb_data *data = hci_get_drvdata(hdev);
2079         unsigned long flags;
2080         bool suspending;
2081
2082         spin_lock_irqsave(&data->txlock, flags);
2083         suspending = test_bit(BTUSB_SUSPENDING, &data->flags);
2084         if (!suspending)
2085                 data->tx_in_flight++;
2086         spin_unlock_irqrestore(&data->txlock, flags);
2087
2088         if (!suspending)
2089                 return submit_tx_urb(hdev, urb);
2090
2091         usb_anchor_urb(urb, &data->deferred);
2092         schedule_work(&data->waker);
2093
2094         usb_free_urb(urb);
2095         return 0;
2096 }
2097
2098 static int btusb_send_frame(struct hci_dev *hdev, struct sk_buff *skb)
2099 {
2100         struct urb *urb;
2101
2102         BT_DBG("%s", hdev->name);
2103
2104         switch (hci_skb_pkt_type(skb)) {
2105         case HCI_COMMAND_PKT:
2106                 urb = alloc_ctrl_urb(hdev, skb);
2107                 if (IS_ERR(urb))
2108                         return PTR_ERR(urb);
2109
2110                 hdev->stat.cmd_tx++;
2111                 return submit_or_queue_tx_urb(hdev, urb);
2112
2113         case HCI_ACLDATA_PKT:
2114                 urb = alloc_bulk_urb(hdev, skb);
2115                 if (IS_ERR(urb))
2116                         return PTR_ERR(urb);
2117
2118                 hdev->stat.acl_tx++;
2119                 return submit_or_queue_tx_urb(hdev, urb);
2120
2121         case HCI_SCODATA_PKT:
2122                 if (hci_conn_num(hdev, SCO_LINK) < 1)
2123                         return -ENODEV;
2124
2125                 urb = alloc_isoc_urb(hdev, skb);
2126                 if (IS_ERR(urb))
2127                         return PTR_ERR(urb);
2128
2129                 hdev->stat.sco_tx++;
2130                 return submit_tx_urb(hdev, urb);
2131
2132         case HCI_ISODATA_PKT:
2133                 urb = alloc_bulk_urb(hdev, skb);
2134                 if (IS_ERR(urb))
2135                         return PTR_ERR(urb);
2136
2137                 return submit_or_queue_tx_urb(hdev, urb);
2138         }
2139
2140         return -EILSEQ;
2141 }
2142
2143 static void btusb_notify(struct hci_dev *hdev, unsigned int evt)
2144 {
2145         struct btusb_data *data = hci_get_drvdata(hdev);
2146
2147         BT_DBG("%s evt %d", hdev->name, evt);
2148
2149         if (hci_conn_num(hdev, SCO_LINK) != data->sco_num) {
2150                 data->sco_num = hci_conn_num(hdev, SCO_LINK);
2151                 data->air_mode = evt;
2152                 schedule_work(&data->work);
2153         }
2154 }
2155
2156 static inline int __set_isoc_interface(struct hci_dev *hdev, int altsetting)
2157 {
2158         struct btusb_data *data = hci_get_drvdata(hdev);
2159         struct usb_interface *intf = data->isoc;
2160         struct usb_endpoint_descriptor *ep_desc;
2161         int i, err;
2162
2163         if (!data->isoc)
2164                 return -ENODEV;
2165
2166         err = usb_set_interface(data->udev, data->isoc_ifnum, altsetting);
2167         if (err < 0) {
2168                 bt_dev_err(hdev, "setting interface failed (%d)", -err);
2169                 return err;
2170         }
2171
2172         data->isoc_altsetting = altsetting;
2173
2174         data->isoc_tx_ep = NULL;
2175         data->isoc_rx_ep = NULL;
2176
2177         for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
2178                 ep_desc = &intf->cur_altsetting->endpoint[i].desc;
2179
2180                 if (!data->isoc_tx_ep && usb_endpoint_is_isoc_out(ep_desc)) {
2181                         data->isoc_tx_ep = ep_desc;
2182                         continue;
2183                 }
2184
2185                 if (!data->isoc_rx_ep && usb_endpoint_is_isoc_in(ep_desc)) {
2186                         data->isoc_rx_ep = ep_desc;
2187                         continue;
2188                 }
2189         }
2190
2191         if (!data->isoc_tx_ep || !data->isoc_rx_ep) {
2192                 bt_dev_err(hdev, "invalid SCO descriptors");
2193                 return -ENODEV;
2194         }
2195
2196         return 0;
2197 }
2198
2199 static int btusb_switch_alt_setting(struct hci_dev *hdev, int new_alts)
2200 {
2201         struct btusb_data *data = hci_get_drvdata(hdev);
2202         int err;
2203
2204         if (data->isoc_altsetting != new_alts) {
2205                 unsigned long flags;
2206
2207                 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
2208                 usb_kill_anchored_urbs(&data->isoc_anchor);
2209
2210                 /* When isochronous alternate setting needs to be
2211                  * changed, because SCO connection has been added
2212                  * or removed, a packet fragment may be left in the
2213                  * reassembling state. This could lead to wrongly
2214                  * assembled fragments.
2215                  *
2216                  * Clear outstanding fragment when selecting a new
2217                  * alternate setting.
2218                  */
2219                 spin_lock_irqsave(&data->rxlock, flags);
2220                 dev_kfree_skb_irq(data->sco_skb);
2221                 data->sco_skb = NULL;
2222                 spin_unlock_irqrestore(&data->rxlock, flags);
2223
2224                 err = __set_isoc_interface(hdev, new_alts);
2225                 if (err < 0)
2226                         return err;
2227         }
2228
2229         if (!test_and_set_bit(BTUSB_ISOC_RUNNING, &data->flags)) {
2230                 if (btusb_submit_isoc_urb(hdev, GFP_KERNEL) < 0)
2231                         clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
2232                 else
2233                         btusb_submit_isoc_urb(hdev, GFP_KERNEL);
2234         }
2235
2236         return 0;
2237 }
2238
2239 static struct usb_host_interface *btusb_find_altsetting(struct btusb_data *data,
2240                                                         int alt)
2241 {
2242         struct usb_interface *intf = data->isoc;
2243         int i;
2244
2245         BT_DBG("Looking for Alt no :%d", alt);
2246
2247         if (!intf)
2248                 return NULL;
2249
2250         for (i = 0; i < intf->num_altsetting; i++) {
2251                 if (intf->altsetting[i].desc.bAlternateSetting == alt)
2252                         return &intf->altsetting[i];
2253         }
2254
2255         return NULL;
2256 }
2257
2258 static void btusb_work(struct work_struct *work)
2259 {
2260         struct btusb_data *data = container_of(work, struct btusb_data, work);
2261         struct hci_dev *hdev = data->hdev;
2262         int new_alts = 0;
2263         int err;
2264
2265         if (data->sco_num > 0) {
2266                 if (!test_bit(BTUSB_DID_ISO_RESUME, &data->flags)) {
2267                         err = usb_autopm_get_interface(data->isoc ? data->isoc : data->intf);
2268                         if (err < 0) {
2269                                 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
2270                                 usb_kill_anchored_urbs(&data->isoc_anchor);
2271                                 return;
2272                         }
2273
2274                         set_bit(BTUSB_DID_ISO_RESUME, &data->flags);
2275                 }
2276
2277                 if (data->air_mode == HCI_NOTIFY_ENABLE_SCO_CVSD) {
2278                         if (hdev->voice_setting & 0x0020) {
2279                                 static const int alts[3] = { 2, 4, 5 };
2280
2281                                 new_alts = alts[data->sco_num - 1];
2282                         } else {
2283                                 new_alts = data->sco_num;
2284                         }
2285                 } else if (data->air_mode == HCI_NOTIFY_ENABLE_SCO_TRANSP) {
2286                         /* Bluetooth USB spec recommends alt 6 (63 bytes), but
2287                          * many adapters do not support it.  Alt 1 appears to
2288                          * work for all adapters that do not have alt 6, and
2289                          * which work with WBS at all.  Some devices prefer
2290                          * alt 3 (HCI payload >= 60 Bytes let air packet
2291                          * data satisfy 60 bytes), requiring
2292                          * MTU >= 3 (packets) * 25 (size) - 3 (headers) = 72
2293                          * see also Core spec 5, vol 4, B 2.1.1 & Table 2.1.
2294                          */
2295                         if (btusb_find_altsetting(data, 6))
2296                                 new_alts = 6;
2297                         else if (btusb_find_altsetting(data, 3) &&
2298                                  hdev->sco_mtu >= 72 &&
2299                                  test_bit(BTUSB_USE_ALT3_FOR_WBS, &data->flags))
2300                                 new_alts = 3;
2301                         else
2302                                 new_alts = 1;
2303                 }
2304
2305                 if (btusb_switch_alt_setting(hdev, new_alts) < 0)
2306                         bt_dev_err(hdev, "set USB alt:(%d) failed!", new_alts);
2307         } else {
2308                 usb_kill_anchored_urbs(&data->isoc_anchor);
2309
2310                 if (test_and_clear_bit(BTUSB_ISOC_RUNNING, &data->flags))
2311                         __set_isoc_interface(hdev, 0);
2312
2313                 if (test_and_clear_bit(BTUSB_DID_ISO_RESUME, &data->flags))
2314                         usb_autopm_put_interface(data->isoc ? data->isoc : data->intf);
2315         }
2316 }
2317
2318 static void btusb_waker(struct work_struct *work)
2319 {
2320         struct btusb_data *data = container_of(work, struct btusb_data, waker);
2321         int err;
2322
2323         err = usb_autopm_get_interface(data->intf);
2324         if (err < 0)
2325                 return;
2326
2327         usb_autopm_put_interface(data->intf);
2328 }
2329
2330 static void btusb_rx_work(struct work_struct *work)
2331 {
2332         struct btusb_data *data = container_of(work, struct btusb_data,
2333                                                rx_work.work);
2334         struct sk_buff *skb;
2335
2336         /* Dequeue ACL data received during the interval */
2337         while ((skb = skb_dequeue(&data->acl_q)))
2338                 data->recv_acl(data->hdev, skb);
2339 }
2340
2341 static int btusb_setup_bcm92035(struct hci_dev *hdev)
2342 {
2343         struct sk_buff *skb;
2344         u8 val = 0x00;
2345
2346         BT_DBG("%s", hdev->name);
2347
2348         skb = __hci_cmd_sync(hdev, 0xfc3b, 1, &val, HCI_INIT_TIMEOUT);
2349         if (IS_ERR(skb))
2350                 bt_dev_err(hdev, "BCM92035 command failed (%ld)", PTR_ERR(skb));
2351         else
2352                 kfree_skb(skb);
2353
2354         return 0;
2355 }
2356
2357 static int btusb_setup_csr(struct hci_dev *hdev)
2358 {
2359         struct btusb_data *data = hci_get_drvdata(hdev);
2360         u16 bcdDevice = le16_to_cpu(data->udev->descriptor.bcdDevice);
2361         struct hci_rp_read_local_version *rp;
2362         struct sk_buff *skb;
2363         bool is_fake = false;
2364         int ret;
2365
2366         BT_DBG("%s", hdev->name);
2367
2368         skb = __hci_cmd_sync(hdev, HCI_OP_READ_LOCAL_VERSION, 0, NULL,
2369                              HCI_INIT_TIMEOUT);
2370         if (IS_ERR(skb)) {
2371                 int err = PTR_ERR(skb);
2372                 bt_dev_err(hdev, "CSR: Local version failed (%d)", err);
2373                 return err;
2374         }
2375
2376         rp = skb_pull_data(skb, sizeof(*rp));
2377         if (!rp) {
2378                 bt_dev_err(hdev, "CSR: Local version length mismatch");
2379                 kfree_skb(skb);
2380                 return -EIO;
2381         }
2382
2383         bt_dev_info(hdev, "CSR: Setting up dongle with HCI ver=%u rev=%04x",
2384                     rp->hci_ver, le16_to_cpu(rp->hci_rev));
2385
2386         bt_dev_info(hdev, "LMP ver=%u subver=%04x; manufacturer=%u",
2387                     rp->lmp_ver, le16_to_cpu(rp->lmp_subver),
2388                     le16_to_cpu(rp->manufacturer));
2389
2390         /* Detect a wide host of Chinese controllers that aren't CSR.
2391          *
2392          * Known fake bcdDevices: 0x0100, 0x0134, 0x1915, 0x2520, 0x7558, 0x8891
2393          *
2394          * The main thing they have in common is that these are really popular low-cost
2395          * options that support newer Bluetooth versions but rely on heavy VID/PID
2396          * squatting of this poor old Bluetooth 1.1 device. Even sold as such.
2397          *
2398          * We detect actual CSR devices by checking that the HCI manufacturer code
2399          * is Cambridge Silicon Radio (10) and ensuring that LMP sub-version and
2400          * HCI rev values always match. As they both store the firmware number.
2401          */
2402         if (le16_to_cpu(rp->manufacturer) != 10 ||
2403             le16_to_cpu(rp->hci_rev) != le16_to_cpu(rp->lmp_subver))
2404                 is_fake = true;
2405
2406         /* Known legit CSR firmware build numbers and their supported BT versions:
2407          * - 1.1 (0x1) -> 0x0073, 0x020d, 0x033c, 0x034e
2408          * - 1.2 (0x2) ->                 0x04d9, 0x0529
2409          * - 2.0 (0x3) ->         0x07a6, 0x07ad, 0x0c5c
2410          * - 2.1 (0x4) ->         0x149c, 0x1735, 0x1899 (0x1899 is a BlueCore4-External)
2411          * - 4.0 (0x6) ->         0x1d86, 0x2031, 0x22bb
2412          *
2413          * e.g. Real CSR dongles with LMP subversion 0x73 are old enough that
2414          *      support BT 1.1 only; so it's a dead giveaway when some
2415          *      third-party BT 4.0 dongle reuses it.
2416          */
2417         else if (le16_to_cpu(rp->lmp_subver) <= 0x034e &&
2418                  rp->hci_ver > BLUETOOTH_VER_1_1)
2419                 is_fake = true;
2420
2421         else if (le16_to_cpu(rp->lmp_subver) <= 0x0529 &&
2422                  rp->hci_ver > BLUETOOTH_VER_1_2)
2423                 is_fake = true;
2424
2425         else if (le16_to_cpu(rp->lmp_subver) <= 0x0c5c &&
2426                  rp->hci_ver > BLUETOOTH_VER_2_0)
2427                 is_fake = true;
2428
2429         else if (le16_to_cpu(rp->lmp_subver) <= 0x1899 &&
2430                  rp->hci_ver > BLUETOOTH_VER_2_1)
2431                 is_fake = true;
2432
2433         else if (le16_to_cpu(rp->lmp_subver) <= 0x22bb &&
2434                  rp->hci_ver > BLUETOOTH_VER_4_0)
2435                 is_fake = true;
2436
2437         /* Other clones which beat all the above checks */
2438         else if (bcdDevice == 0x0134 &&
2439                  le16_to_cpu(rp->lmp_subver) == 0x0c5c &&
2440                  rp->hci_ver == BLUETOOTH_VER_2_0)
2441                 is_fake = true;
2442
2443         if (is_fake) {
2444                 bt_dev_warn(hdev, "CSR: Unbranded CSR clone detected; adding workarounds and force-suspending once...");
2445
2446                 /* Generally these clones have big discrepancies between
2447                  * advertised features and what's actually supported.
2448                  * Probably will need to be expanded in the future;
2449                  * without these the controller will lock up.
2450                  */
2451                 set_bit(HCI_QUIRK_BROKEN_STORED_LINK_KEY, &hdev->quirks);
2452                 set_bit(HCI_QUIRK_BROKEN_ERR_DATA_REPORTING, &hdev->quirks);
2453                 set_bit(HCI_QUIRK_BROKEN_FILTER_CLEAR_ALL, &hdev->quirks);
2454                 set_bit(HCI_QUIRK_NO_SUSPEND_NOTIFIER, &hdev->quirks);
2455
2456                 /* Clear the reset quirk since this is not an actual
2457                  * early Bluetooth 1.1 device from CSR.
2458                  */
2459                 clear_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
2460                 clear_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks);
2461
2462                 /*
2463                  * Special workaround for these BT 4.0 chip clones, and potentially more:
2464                  *
2465                  * - 0x0134: a Barrot 8041a02                 (HCI rev: 0x0810 sub: 0x1012)
2466                  * - 0x7558: IC markings FR3191AHAL 749H15143 (HCI rev/sub-version: 0x0709)
2467                  *
2468                  * These controllers are really messed-up.
2469                  *
2470                  * 1. Their bulk RX endpoint will never report any data unless
2471                  *    the device was suspended at least once (yes, really).
2472                  * 2. They will not wakeup when autosuspended and receiving data
2473                  *    on their bulk RX endpoint from e.g. a keyboard or mouse
2474                  *    (IOW remote-wakeup support is broken for the bulk endpoint).
2475                  *
2476                  * To fix 1. enable runtime-suspend, force-suspend the
2477                  * HCI and then wake-it up by disabling runtime-suspend.
2478                  *
2479                  * To fix 2. clear the HCI's can_wake flag, this way the HCI
2480                  * will still be autosuspended when it is not open.
2481                  *
2482                  * --
2483                  *
2484                  * Because these are widespread problems we prefer generic solutions; so
2485                  * apply this initialization quirk to every controller that gets here,
2486                  * it should be harmless. The alternative is to not work at all.
2487                  */
2488                 pm_runtime_allow(&data->udev->dev);
2489
2490                 ret = pm_runtime_suspend(&data->udev->dev);
2491                 if (ret >= 0)
2492                         msleep(200);
2493                 else
2494                         bt_dev_warn(hdev, "CSR: Couldn't suspend the device for our Barrot 8041a02 receive-issue workaround");
2495
2496                 pm_runtime_forbid(&data->udev->dev);
2497
2498                 device_set_wakeup_capable(&data->udev->dev, false);
2499
2500                 /* Re-enable autosuspend if this was requested */
2501                 if (enable_autosuspend)
2502                         usb_enable_autosuspend(data->udev);
2503         }
2504
2505         kfree_skb(skb);
2506
2507         return 0;
2508 }
2509
2510 static int inject_cmd_complete(struct hci_dev *hdev, __u16 opcode)
2511 {
2512         struct sk_buff *skb;
2513         struct hci_event_hdr *hdr;
2514         struct hci_ev_cmd_complete *evt;
2515
2516         skb = bt_skb_alloc(sizeof(*hdr) + sizeof(*evt) + 1, GFP_KERNEL);
2517         if (!skb)
2518                 return -ENOMEM;
2519
2520         hdr = skb_put(skb, sizeof(*hdr));
2521         hdr->evt = HCI_EV_CMD_COMPLETE;
2522         hdr->plen = sizeof(*evt) + 1;
2523
2524         evt = skb_put(skb, sizeof(*evt));
2525         evt->ncmd = 0x01;
2526         evt->opcode = cpu_to_le16(opcode);
2527
2528         skb_put_u8(skb, 0x00);
2529
2530         hci_skb_pkt_type(skb) = HCI_EVENT_PKT;
2531
2532         return hci_recv_frame(hdev, skb);
2533 }
2534
2535 static int btusb_recv_bulk_intel(struct btusb_data *data, void *buffer,
2536                                  int count)
2537 {
2538         struct hci_dev *hdev = data->hdev;
2539
2540         /* When the device is in bootloader mode, then it can send
2541          * events via the bulk endpoint. These events are treated the
2542          * same way as the ones received from the interrupt endpoint.
2543          */
2544         if (btintel_test_flag(hdev, INTEL_BOOTLOADER))
2545                 return btusb_recv_intr(data, buffer, count);
2546
2547         return btusb_recv_bulk(data, buffer, count);
2548 }
2549
2550 static int btusb_send_frame_intel(struct hci_dev *hdev, struct sk_buff *skb)
2551 {
2552         struct urb *urb;
2553
2554         BT_DBG("%s", hdev->name);
2555
2556         switch (hci_skb_pkt_type(skb)) {
2557         case HCI_COMMAND_PKT:
2558                 if (btintel_test_flag(hdev, INTEL_BOOTLOADER)) {
2559                         struct hci_command_hdr *cmd = (void *)skb->data;
2560                         __u16 opcode = le16_to_cpu(cmd->opcode);
2561
2562                         /* When in bootloader mode and the command 0xfc09
2563                          * is received, it needs to be send down the
2564                          * bulk endpoint. So allocate a bulk URB instead.
2565                          */
2566                         if (opcode == 0xfc09)
2567                                 urb = alloc_bulk_urb(hdev, skb);
2568                         else
2569                                 urb = alloc_ctrl_urb(hdev, skb);
2570
2571                         /* When the 0xfc01 command is issued to boot into
2572                          * the operational firmware, it will actually not
2573                          * send a command complete event. To keep the flow
2574                          * control working inject that event here.
2575                          */
2576                         if (opcode == 0xfc01)
2577                                 inject_cmd_complete(hdev, opcode);
2578                 } else {
2579                         urb = alloc_ctrl_urb(hdev, skb);
2580                 }
2581                 if (IS_ERR(urb))
2582                         return PTR_ERR(urb);
2583
2584                 hdev->stat.cmd_tx++;
2585                 return submit_or_queue_tx_urb(hdev, urb);
2586
2587         case HCI_ACLDATA_PKT:
2588                 urb = alloc_bulk_urb(hdev, skb);
2589                 if (IS_ERR(urb))
2590                         return PTR_ERR(urb);
2591
2592                 hdev->stat.acl_tx++;
2593                 return submit_or_queue_tx_urb(hdev, urb);
2594
2595         case HCI_SCODATA_PKT:
2596                 if (hci_conn_num(hdev, SCO_LINK) < 1)
2597                         return -ENODEV;
2598
2599                 urb = alloc_isoc_urb(hdev, skb);
2600                 if (IS_ERR(urb))
2601                         return PTR_ERR(urb);
2602
2603                 hdev->stat.sco_tx++;
2604                 return submit_tx_urb(hdev, urb);
2605
2606         case HCI_ISODATA_PKT:
2607                 urb = alloc_bulk_urb(hdev, skb);
2608                 if (IS_ERR(urb))
2609                         return PTR_ERR(urb);
2610
2611                 return submit_or_queue_tx_urb(hdev, urb);
2612         }
2613
2614         return -EILSEQ;
2615 }
2616
2617 static int btusb_setup_realtek(struct hci_dev *hdev)
2618 {
2619         struct btusb_data *data = hci_get_drvdata(hdev);
2620         int ret;
2621
2622         ret = btrtl_setup_realtek(hdev);
2623
2624         if (btrealtek_test_flag(data->hdev, REALTEK_ALT6_CONTINUOUS_TX_CHIP))
2625                 set_bit(BTUSB_ALT6_CONTINUOUS_TX, &data->flags);
2626
2627         return ret;
2628 }
2629
2630 static int btusb_recv_event_realtek(struct hci_dev *hdev, struct sk_buff *skb)
2631 {
2632         if (skb->data[0] == HCI_VENDOR_PKT && skb->data[2] == RTK_SUB_EVENT_CODE_COREDUMP) {
2633                 struct rtk_dev_coredump_hdr hdr = {
2634                         .code = RTK_DEVCOREDUMP_CODE_MEMDUMP,
2635                 };
2636
2637                 bt_dev_dbg(hdev, "RTL: received coredump vendor evt, len %u",
2638                         skb->len);
2639
2640                 btusb_rtl_alloc_devcoredump(hdev, &hdr, skb->data, skb->len);
2641                 kfree_skb(skb);
2642
2643                 return 0;
2644         }
2645
2646         return hci_recv_frame(hdev, skb);
2647 }
2648
2649 static void btusb_mtk_claim_iso_intf(struct btusb_data *data)
2650 {
2651         struct btmtk_data *btmtk_data = hci_get_priv(data->hdev);
2652         int err;
2653
2654         err = usb_driver_claim_interface(&btusb_driver,
2655                                          btmtk_data->isopkt_intf, data);
2656         if (err < 0) {
2657                 btmtk_data->isopkt_intf = NULL;
2658                 bt_dev_err(data->hdev, "Failed to claim iso interface");
2659                 return;
2660         }
2661
2662         set_bit(BTMTK_ISOPKT_OVER_INTR, &btmtk_data->flags);
2663 }
2664
2665 static void btusb_mtk_release_iso_intf(struct btusb_data *data)
2666 {
2667         struct btmtk_data *btmtk_data = hci_get_priv(data->hdev);
2668
2669         if (btmtk_data->isopkt_intf) {
2670                 usb_kill_anchored_urbs(&btmtk_data->isopkt_anchor);
2671                 clear_bit(BTMTK_ISOPKT_RUNNING, &btmtk_data->flags);
2672
2673                 dev_kfree_skb_irq(btmtk_data->isopkt_skb);
2674                 btmtk_data->isopkt_skb = NULL;
2675                 usb_set_intfdata(btmtk_data->isopkt_intf, NULL);
2676                 usb_driver_release_interface(&btusb_driver,
2677                                              btmtk_data->isopkt_intf);
2678         }
2679
2680         clear_bit(BTMTK_ISOPKT_OVER_INTR, &btmtk_data->flags);
2681 }
2682
2683 static int btusb_mtk_reset(struct hci_dev *hdev, void *rst_data)
2684 {
2685         struct btusb_data *data = hci_get_drvdata(hdev);
2686         struct btmtk_data *btmtk_data = hci_get_priv(hdev);
2687         int err;
2688
2689         /* It's MediaTek specific bluetooth reset mechanism via USB */
2690         if (test_and_set_bit(BTMTK_HW_RESET_ACTIVE, &btmtk_data->flags)) {
2691                 bt_dev_err(hdev, "last reset failed? Not resetting again");
2692                 return -EBUSY;
2693         }
2694
2695         err = usb_autopm_get_interface(data->intf);
2696         if (err < 0)
2697                 return err;
2698
2699         if (test_bit(BTMTK_ISOPKT_RUNNING, &btmtk_data->flags))
2700                 btusb_mtk_release_iso_intf(data);
2701
2702         btusb_stop_traffic(data);
2703         usb_kill_anchored_urbs(&data->tx_anchor);
2704
2705         err = btmtk_usb_subsys_reset(hdev, btmtk_data->dev_id);
2706
2707         usb_queue_reset_device(data->intf);
2708         clear_bit(BTMTK_HW_RESET_ACTIVE, &btmtk_data->flags);
2709
2710         return err;
2711 }
2712
2713 static int btusb_send_frame_mtk(struct hci_dev *hdev, struct sk_buff *skb)
2714 {
2715         struct urb *urb;
2716
2717         BT_DBG("%s", hdev->name);
2718
2719         if (hci_skb_pkt_type(skb) == HCI_ISODATA_PKT) {
2720                 urb = alloc_mtk_intr_urb(hdev, skb, btusb_tx_complete);
2721                 if (IS_ERR(urb))
2722                         return PTR_ERR(urb);
2723
2724                 return submit_or_queue_tx_urb(hdev, urb);
2725         } else {
2726                 return btusb_send_frame(hdev, skb);
2727         }
2728 }
2729
2730 static int btusb_mtk_setup(struct hci_dev *hdev)
2731 {
2732         struct btusb_data *data = hci_get_drvdata(hdev);
2733         struct btmtk_data *btmtk_data = hci_get_priv(hdev);
2734
2735         /* MediaTek WMT vendor cmd requiring below USB resources to
2736          * complete the handshake.
2737          */
2738         btmtk_data->drv_name = btusb_driver.name;
2739         btmtk_data->intf = data->intf;
2740         btmtk_data->udev = data->udev;
2741         btmtk_data->ctrl_anchor = &data->ctrl_anchor;
2742         btmtk_data->reset_sync = btusb_mtk_reset;
2743
2744         /* Claim ISO data interface and endpoint */
2745         btmtk_data->isopkt_intf = usb_ifnum_to_if(data->udev, MTK_ISO_IFNUM);
2746         if (btmtk_data->isopkt_intf)
2747                 btusb_mtk_claim_iso_intf(data);
2748
2749         return btmtk_usb_setup(hdev);
2750 }
2751
2752 static int btusb_mtk_shutdown(struct hci_dev *hdev)
2753 {
2754         struct btusb_data *data = hci_get_drvdata(hdev);
2755         struct btmtk_data *btmtk_data = hci_get_priv(hdev);
2756
2757         if (test_bit(BTMTK_ISOPKT_RUNNING, &btmtk_data->flags))
2758                 btusb_mtk_release_iso_intf(data);
2759
2760         return btmtk_usb_shutdown(hdev);
2761 }
2762
2763 #ifdef CONFIG_PM
2764 /* Configure an out-of-band gpio as wake-up pin, if specified in device tree */
2765 static int marvell_config_oob_wake(struct hci_dev *hdev)
2766 {
2767         struct sk_buff *skb;
2768         struct btusb_data *data = hci_get_drvdata(hdev);
2769         struct device *dev = &data->udev->dev;
2770         u16 pin, gap, opcode;
2771         int ret;
2772         u8 cmd[5];
2773
2774         /* Move on if no wakeup pin specified */
2775         if (of_property_read_u16(dev->of_node, "marvell,wakeup-pin", &pin) ||
2776             of_property_read_u16(dev->of_node, "marvell,wakeup-gap-ms", &gap))
2777                 return 0;
2778
2779         /* Vendor specific command to configure a GPIO as wake-up pin */
2780         opcode = hci_opcode_pack(0x3F, 0x59);
2781         cmd[0] = opcode & 0xFF;
2782         cmd[1] = opcode >> 8;
2783         cmd[2] = 2; /* length of parameters that follow */
2784         cmd[3] = pin;
2785         cmd[4] = gap; /* time in ms, for which wakeup pin should be asserted */
2786
2787         skb = bt_skb_alloc(sizeof(cmd), GFP_KERNEL);
2788         if (!skb) {
2789                 bt_dev_err(hdev, "%s: No memory", __func__);
2790                 return -ENOMEM;
2791         }
2792
2793         skb_put_data(skb, cmd, sizeof(cmd));
2794         hci_skb_pkt_type(skb) = HCI_COMMAND_PKT;
2795
2796         ret = btusb_send_frame(hdev, skb);
2797         if (ret) {
2798                 bt_dev_err(hdev, "%s: configuration failed", __func__);
2799                 kfree_skb(skb);
2800                 return ret;
2801         }
2802
2803         return 0;
2804 }
2805 #endif
2806
2807 static int btusb_set_bdaddr_marvell(struct hci_dev *hdev,
2808                                     const bdaddr_t *bdaddr)
2809 {
2810         struct sk_buff *skb;
2811         u8 buf[8];
2812         long ret;
2813
2814         buf[0] = 0xfe;
2815         buf[1] = sizeof(bdaddr_t);
2816         memcpy(buf + 2, bdaddr, sizeof(bdaddr_t));
2817
2818         skb = __hci_cmd_sync(hdev, 0xfc22, sizeof(buf), buf, HCI_INIT_TIMEOUT);
2819         if (IS_ERR(skb)) {
2820                 ret = PTR_ERR(skb);
2821                 bt_dev_err(hdev, "changing Marvell device address failed (%ld)",
2822                            ret);
2823                 return ret;
2824         }
2825         kfree_skb(skb);
2826
2827         return 0;
2828 }
2829
2830 static int btusb_set_bdaddr_ath3012(struct hci_dev *hdev,
2831                                     const bdaddr_t *bdaddr)
2832 {
2833         struct sk_buff *skb;
2834         u8 buf[10];
2835         long ret;
2836
2837         buf[0] = 0x01;
2838         buf[1] = 0x01;
2839         buf[2] = 0x00;
2840         buf[3] = sizeof(bdaddr_t);
2841         memcpy(buf + 4, bdaddr, sizeof(bdaddr_t));
2842
2843         skb = __hci_cmd_sync(hdev, 0xfc0b, sizeof(buf), buf, HCI_INIT_TIMEOUT);
2844         if (IS_ERR(skb)) {
2845                 ret = PTR_ERR(skb);
2846                 bt_dev_err(hdev, "Change address command failed (%ld)", ret);
2847                 return ret;
2848         }
2849         kfree_skb(skb);
2850
2851         return 0;
2852 }
2853
2854 static int btusb_set_bdaddr_wcn6855(struct hci_dev *hdev,
2855                                 const bdaddr_t *bdaddr)
2856 {
2857         struct sk_buff *skb;
2858         u8 buf[6];
2859         long ret;
2860
2861         memcpy(buf, bdaddr, sizeof(bdaddr_t));
2862
2863         skb = __hci_cmd_sync_ev(hdev, 0xfc14, sizeof(buf), buf,
2864                                 HCI_EV_CMD_COMPLETE, HCI_INIT_TIMEOUT);
2865         if (IS_ERR(skb)) {
2866                 ret = PTR_ERR(skb);
2867                 bt_dev_err(hdev, "Change address command failed (%ld)", ret);
2868                 return ret;
2869         }
2870         kfree_skb(skb);
2871
2872         return 0;
2873 }
2874
2875 #define QCA_MEMDUMP_ACL_HANDLE 0x2EDD
2876 #define QCA_MEMDUMP_SIZE_MAX  0x100000
2877 #define QCA_MEMDUMP_VSE_CLASS 0x01
2878 #define QCA_MEMDUMP_MSG_TYPE 0x08
2879 #define QCA_MEMDUMP_PKT_SIZE 248
2880 #define QCA_LAST_SEQUENCE_NUM 0xffff
2881
2882 struct qca_dump_hdr {
2883         u8 vse_class;
2884         u8 msg_type;
2885         __le16 seqno;
2886         u8 reserved;
2887         union {
2888                 u8 data[0];
2889                 struct {
2890                         __le32 ram_dump_size;
2891                         u8 data0[0];
2892                 } __packed;
2893         };
2894 } __packed;
2895
2896
2897 static void btusb_dump_hdr_qca(struct hci_dev *hdev, struct sk_buff *skb)
2898 {
2899         char buf[128];
2900         struct btusb_data *btdata = hci_get_drvdata(hdev);
2901
2902         snprintf(buf, sizeof(buf), "Controller Name: 0x%x\n",
2903                         btdata->qca_dump.controller_id);
2904         skb_put_data(skb, buf, strlen(buf));
2905
2906         snprintf(buf, sizeof(buf), "Firmware Version: 0x%x\n",
2907                         btdata->qca_dump.fw_version);
2908         skb_put_data(skb, buf, strlen(buf));
2909
2910         snprintf(buf, sizeof(buf), "Driver: %s\nVendor: qca\n",
2911                         btusb_driver.name);
2912         skb_put_data(skb, buf, strlen(buf));
2913
2914         snprintf(buf, sizeof(buf), "VID: 0x%x\nPID:0x%x\n",
2915                         btdata->qca_dump.id_vendor, btdata->qca_dump.id_product);
2916         skb_put_data(skb, buf, strlen(buf));
2917
2918         snprintf(buf, sizeof(buf), "Lmp Subversion: 0x%x\n",
2919                         hdev->lmp_subver);
2920         skb_put_data(skb, buf, strlen(buf));
2921 }
2922
2923 static void btusb_coredump_qca(struct hci_dev *hdev)
2924 {
2925         int err;
2926         static const u8 param[] = { 0x26 };
2927
2928         err = __hci_cmd_send(hdev, 0xfc0c, 1, param);
2929         if (err < 0)
2930                 bt_dev_err(hdev, "%s: triggle crash failed (%d)", __func__, err);
2931 }
2932
2933 /*
2934  * ==0: not a dump pkt.
2935  * < 0: fails to handle a dump pkt
2936  * > 0: otherwise.
2937  */
2938 static int handle_dump_pkt_qca(struct hci_dev *hdev, struct sk_buff *skb)
2939 {
2940         int ret = 1;
2941         u8 pkt_type;
2942         u8 *sk_ptr;
2943         unsigned int sk_len;
2944         u16 seqno;
2945         u32 dump_size;
2946
2947         struct hci_event_hdr *event_hdr;
2948         struct hci_acl_hdr *acl_hdr;
2949         struct qca_dump_hdr *dump_hdr;
2950         struct btusb_data *btdata = hci_get_drvdata(hdev);
2951         struct usb_device *udev = btdata->udev;
2952
2953         pkt_type = hci_skb_pkt_type(skb);
2954         sk_ptr = skb->data;
2955         sk_len = skb->len;
2956
2957         if (pkt_type == HCI_ACLDATA_PKT) {
2958                 acl_hdr = hci_acl_hdr(skb);
2959                 if (le16_to_cpu(acl_hdr->handle) != QCA_MEMDUMP_ACL_HANDLE)
2960                         return 0;
2961                 sk_ptr += HCI_ACL_HDR_SIZE;
2962                 sk_len -= HCI_ACL_HDR_SIZE;
2963                 event_hdr = (struct hci_event_hdr *)sk_ptr;
2964         } else {
2965                 event_hdr = hci_event_hdr(skb);
2966         }
2967
2968         if ((event_hdr->evt != HCI_VENDOR_PKT)
2969                 || (event_hdr->plen != (sk_len - HCI_EVENT_HDR_SIZE)))
2970                 return 0;
2971
2972         sk_ptr += HCI_EVENT_HDR_SIZE;
2973         sk_len -= HCI_EVENT_HDR_SIZE;
2974
2975         dump_hdr = (struct qca_dump_hdr *)sk_ptr;
2976         if ((sk_len < offsetof(struct qca_dump_hdr, data))
2977                 || (dump_hdr->vse_class != QCA_MEMDUMP_VSE_CLASS)
2978             || (dump_hdr->msg_type != QCA_MEMDUMP_MSG_TYPE))
2979                 return 0;
2980
2981         /*it is dump pkt now*/
2982         seqno = le16_to_cpu(dump_hdr->seqno);
2983         if (seqno == 0) {
2984                 set_bit(BTUSB_HW_SSR_ACTIVE, &btdata->flags);
2985                 dump_size = le32_to_cpu(dump_hdr->ram_dump_size);
2986                 if (!dump_size || (dump_size > QCA_MEMDUMP_SIZE_MAX)) {
2987                         ret = -EILSEQ;
2988                         bt_dev_err(hdev, "Invalid memdump size(%u)",
2989                                    dump_size);
2990                         goto out;
2991                 }
2992
2993                 ret = hci_devcd_init(hdev, dump_size);
2994                 if (ret < 0) {
2995                         bt_dev_err(hdev, "memdump init error(%d)", ret);
2996                         goto out;
2997                 }
2998
2999                 btdata->qca_dump.ram_dump_size = dump_size;
3000                 btdata->qca_dump.ram_dump_seqno = 0;
3001                 sk_ptr += offsetof(struct qca_dump_hdr, data0);
3002                 sk_len -= offsetof(struct qca_dump_hdr, data0);
3003
3004                 usb_disable_autosuspend(udev);
3005                 bt_dev_info(hdev, "%s memdump size(%u)\n",
3006                             (pkt_type == HCI_ACLDATA_PKT) ? "ACL" : "event",
3007                             dump_size);
3008         } else {
3009                 sk_ptr += offsetof(struct qca_dump_hdr, data);
3010                 sk_len -= offsetof(struct qca_dump_hdr, data);
3011         }
3012
3013         if (!btdata->qca_dump.ram_dump_size) {
3014                 ret = -EINVAL;
3015                 bt_dev_err(hdev, "memdump is not active");
3016                 goto out;
3017         }
3018
3019         if ((seqno > btdata->qca_dump.ram_dump_seqno + 1) && (seqno != QCA_LAST_SEQUENCE_NUM)) {
3020                 dump_size = QCA_MEMDUMP_PKT_SIZE * (seqno - btdata->qca_dump.ram_dump_seqno - 1);
3021                 hci_devcd_append_pattern(hdev, 0x0, dump_size);
3022                 bt_dev_err(hdev,
3023                            "expected memdump seqno(%u) is not received(%u)\n",
3024                            btdata->qca_dump.ram_dump_seqno, seqno);
3025                 btdata->qca_dump.ram_dump_seqno = seqno;
3026                 kfree_skb(skb);
3027                 return ret;
3028         }
3029
3030         skb_pull(skb, skb->len - sk_len);
3031         hci_devcd_append(hdev, skb);
3032         btdata->qca_dump.ram_dump_seqno++;
3033         if (seqno == QCA_LAST_SEQUENCE_NUM) {
3034                 bt_dev_info(hdev,
3035                                 "memdump done: pkts(%u), total(%u)\n",
3036                                 btdata->qca_dump.ram_dump_seqno, btdata->qca_dump.ram_dump_size);
3037
3038                 hci_devcd_complete(hdev);
3039                 goto out;
3040         }
3041         return ret;
3042
3043 out:
3044         if (btdata->qca_dump.ram_dump_size)
3045                 usb_enable_autosuspend(udev);
3046         btdata->qca_dump.ram_dump_size = 0;
3047         btdata->qca_dump.ram_dump_seqno = 0;
3048         clear_bit(BTUSB_HW_SSR_ACTIVE, &btdata->flags);
3049
3050         if (ret < 0)
3051                 kfree_skb(skb);
3052         return ret;
3053 }
3054
3055 static int btusb_recv_acl_qca(struct hci_dev *hdev, struct sk_buff *skb)
3056 {
3057         if (handle_dump_pkt_qca(hdev, skb))
3058                 return 0;
3059         return hci_recv_frame(hdev, skb);
3060 }
3061
3062 static int btusb_recv_evt_qca(struct hci_dev *hdev, struct sk_buff *skb)
3063 {
3064         if (handle_dump_pkt_qca(hdev, skb))
3065                 return 0;
3066         return hci_recv_frame(hdev, skb);
3067 }
3068
3069
3070 #define QCA_DFU_PACKET_LEN      4096
3071
3072 #define QCA_GET_TARGET_VERSION  0x09
3073 #define QCA_CHECK_STATUS        0x05
3074 #define QCA_DFU_DOWNLOAD        0x01
3075
3076 #define QCA_SYSCFG_UPDATED      0x40
3077 #define QCA_PATCH_UPDATED       0x80
3078 #define QCA_DFU_TIMEOUT         3000
3079 #define QCA_FLAG_MULTI_NVM      0x80
3080 #define QCA_BT_RESET_WAIT_MS    100
3081
3082 #define WCN6855_2_0_RAM_VERSION_GF 0x400c1200
3083 #define WCN6855_2_1_RAM_VERSION_GF 0x400c1211
3084
3085 struct qca_version {
3086         __le32  rom_version;
3087         __le32  patch_version;
3088         __le32  ram_version;
3089         __u8    chip_id;
3090         __u8    platform_id;
3091         __le16  flag;
3092         __u8    reserved[4];
3093 } __packed;
3094
3095 struct qca_rampatch_version {
3096         __le16  rom_version_high;
3097         __le16  rom_version_low;
3098         __le16  patch_version;
3099 } __packed;
3100
3101 struct qca_device_info {
3102         u32     rom_version;
3103         u8      rampatch_hdr;   /* length of header in rampatch */
3104         u8      nvm_hdr;        /* length of header in NVM */
3105         u8      ver_offset;     /* offset of version structure in rampatch */
3106 };
3107
3108 static const struct qca_device_info qca_devices_table[] = {
3109         { 0x00000100, 20, 4,  8 }, /* Rome 1.0 */
3110         { 0x00000101, 20, 4,  8 }, /* Rome 1.1 */
3111         { 0x00000200, 28, 4, 16 }, /* Rome 2.0 */
3112         { 0x00000201, 28, 4, 16 }, /* Rome 2.1 */
3113         { 0x00000300, 28, 4, 16 }, /* Rome 3.0 */
3114         { 0x00000302, 28, 4, 16 }, /* Rome 3.2 */
3115         { 0x00130100, 40, 4, 16 }, /* WCN6855 1.0 */
3116         { 0x00130200, 40, 4, 16 }, /* WCN6855 2.0 */
3117         { 0x00130201, 40, 4, 16 }, /* WCN6855 2.1 */
3118         { 0x00190200, 40, 4, 16 }, /* WCN785x 2.0 */
3119 };
3120
3121 static int btusb_qca_send_vendor_req(struct usb_device *udev, u8 request,
3122                                      void *data, u16 size)
3123 {
3124         int pipe, err;
3125         u8 *buf;
3126
3127         buf = kmalloc(size, GFP_KERNEL);
3128         if (!buf)
3129                 return -ENOMEM;
3130
3131         /* Found some of USB hosts have IOT issues with ours so that we should
3132          * not wait until HCI layer is ready.
3133          */
3134         pipe = usb_rcvctrlpipe(udev, 0);
3135         err = usb_control_msg(udev, pipe, request, USB_TYPE_VENDOR | USB_DIR_IN,
3136                               0, 0, buf, size, USB_CTRL_GET_TIMEOUT);
3137         if (err < 0) {
3138                 dev_err(&udev->dev, "Failed to access otp area (%d)", err);
3139                 goto done;
3140         }
3141
3142         memcpy(data, buf, size);
3143
3144 done:
3145         kfree(buf);
3146
3147         return err;
3148 }
3149
3150 static int btusb_setup_qca_download_fw(struct hci_dev *hdev,
3151                                        const struct firmware *firmware,
3152                                        size_t hdr_size)
3153 {
3154         struct btusb_data *btdata = hci_get_drvdata(hdev);
3155         struct usb_device *udev = btdata->udev;
3156         size_t count, size, sent = 0;
3157         int pipe, len, err;
3158         u8 *buf;
3159
3160         buf = kmalloc(QCA_DFU_PACKET_LEN, GFP_KERNEL);
3161         if (!buf)
3162                 return -ENOMEM;
3163
3164         count = firmware->size;
3165
3166         size = min_t(size_t, count, hdr_size);
3167         memcpy(buf, firmware->data, size);
3168
3169         /* USB patches should go down to controller through USB path
3170          * because binary format fits to go down through USB channel.
3171          * USB control path is for patching headers and USB bulk is for
3172          * patch body.
3173          */
3174         pipe = usb_sndctrlpipe(udev, 0);
3175         err = usb_control_msg(udev, pipe, QCA_DFU_DOWNLOAD, USB_TYPE_VENDOR,
3176                               0, 0, buf, size, USB_CTRL_SET_TIMEOUT);
3177         if (err < 0) {
3178                 bt_dev_err(hdev, "Failed to send headers (%d)", err);
3179                 goto done;
3180         }
3181
3182         sent += size;
3183         count -= size;
3184
3185         /* ep2 need time to switch from function acl to function dfu,
3186          * so we add 20ms delay here.
3187          */
3188         msleep(20);
3189
3190         while (count) {
3191                 size = min_t(size_t, count, QCA_DFU_PACKET_LEN);
3192
3193                 memcpy(buf, firmware->data + sent, size);
3194
3195                 pipe = usb_sndbulkpipe(udev, 0x02);
3196                 err = usb_bulk_msg(udev, pipe, buf, size, &len,
3197                                    QCA_DFU_TIMEOUT);
3198                 if (err < 0) {
3199                         bt_dev_err(hdev, "Failed to send body at %zd of %zd (%d)",
3200                                    sent, firmware->size, err);
3201                         break;
3202                 }
3203
3204                 if (size != len) {
3205                         bt_dev_err(hdev, "Failed to get bulk buffer");
3206                         err = -EILSEQ;
3207                         break;
3208                 }
3209
3210                 sent  += size;
3211                 count -= size;
3212         }
3213
3214 done:
3215         kfree(buf);
3216         return err;
3217 }
3218
3219 static int btusb_setup_qca_load_rampatch(struct hci_dev *hdev,
3220                                          struct qca_version *ver,
3221                                          const struct qca_device_info *info)
3222 {
3223         struct qca_rampatch_version *rver;
3224         const struct firmware *fw;
3225         u32 ver_rom, ver_patch, rver_rom;
3226         u16 rver_rom_low, rver_rom_high, rver_patch;
3227         char fwname[64];
3228         int err;
3229
3230         ver_rom = le32_to_cpu(ver->rom_version);
3231         ver_patch = le32_to_cpu(ver->patch_version);
3232
3233         snprintf(fwname, sizeof(fwname), "qca/rampatch_usb_%08x.bin", ver_rom);
3234
3235         err = request_firmware(&fw, fwname, &hdev->dev);
3236         if (err) {
3237                 bt_dev_err(hdev, "failed to request rampatch file: %s (%d)",
3238                            fwname, err);
3239                 return err;
3240         }
3241
3242         bt_dev_info(hdev, "using rampatch file: %s", fwname);
3243
3244         rver = (struct qca_rampatch_version *)(fw->data + info->ver_offset);
3245         rver_rom_low = le16_to_cpu(rver->rom_version_low);
3246         rver_patch = le16_to_cpu(rver->patch_version);
3247
3248         if (ver_rom & ~0xffffU) {
3249                 rver_rom_high = le16_to_cpu(rver->rom_version_high);
3250                 rver_rom = rver_rom_high << 16 | rver_rom_low;
3251         } else {
3252                 rver_rom = rver_rom_low;
3253         }
3254
3255         bt_dev_info(hdev, "QCA: patch rome 0x%x build 0x%x, "
3256                     "firmware rome 0x%x build 0x%x",
3257                     rver_rom, rver_patch, ver_rom, ver_patch);
3258
3259         if (rver_rom != ver_rom || rver_patch <= ver_patch) {
3260                 bt_dev_err(hdev, "rampatch file version did not match with firmware");
3261                 err = -EINVAL;
3262                 goto done;
3263         }
3264
3265         err = btusb_setup_qca_download_fw(hdev, fw, info->rampatch_hdr);
3266
3267 done:
3268         release_firmware(fw);
3269
3270         return err;
3271 }
3272
3273 static void btusb_generate_qca_nvm_name(char *fwname, size_t max_size,
3274                                         const struct qca_version *ver)
3275 {
3276         u32 rom_version = le32_to_cpu(ver->rom_version);
3277         u16 flag = le16_to_cpu(ver->flag);
3278
3279         if (((flag >> 8) & 0xff) == QCA_FLAG_MULTI_NVM) {
3280                 /* The board_id should be split into two bytes
3281                  * The 1st byte is chip ID, and the 2nd byte is platform ID
3282                  * For example, board ID 0x010A, 0x01 is platform ID. 0x0A is chip ID
3283                  * we have several platforms, and platform IDs are continuously added
3284                  * Platform ID:
3285                  * 0x00 is for Mobile
3286                  * 0x01 is for X86
3287                  * 0x02 is for Automotive
3288                  * 0x03 is for Consumer electronic
3289                  */
3290                 u16 board_id = (ver->chip_id << 8) + ver->platform_id;
3291                 const char *variant;
3292
3293                 switch (le32_to_cpu(ver->ram_version)) {
3294                 case WCN6855_2_0_RAM_VERSION_GF:
3295                 case WCN6855_2_1_RAM_VERSION_GF:
3296                         variant = "_gf";
3297                         break;
3298                 default:
3299                         variant = "";
3300                         break;
3301                 }
3302
3303                 if (board_id == 0) {
3304                         snprintf(fwname, max_size, "qca/nvm_usb_%08x%s.bin",
3305                                 rom_version, variant);
3306                 } else {
3307                         snprintf(fwname, max_size, "qca/nvm_usb_%08x%s_%04x.bin",
3308                                 rom_version, variant, board_id);
3309                 }
3310         } else {
3311                 snprintf(fwname, max_size, "qca/nvm_usb_%08x.bin",
3312                         rom_version);
3313         }
3314
3315 }
3316
3317 static int btusb_setup_qca_load_nvm(struct hci_dev *hdev,
3318                                     struct qca_version *ver,
3319                                     const struct qca_device_info *info)
3320 {
3321         const struct firmware *fw;
3322         char fwname[64];
3323         int err;
3324
3325         btusb_generate_qca_nvm_name(fwname, sizeof(fwname), ver);
3326
3327         err = request_firmware(&fw, fwname, &hdev->dev);
3328         if (err) {
3329                 bt_dev_err(hdev, "failed to request NVM file: %s (%d)",
3330                            fwname, err);
3331                 return err;
3332         }
3333
3334         bt_dev_info(hdev, "using NVM file: %s", fwname);
3335
3336         err = btusb_setup_qca_download_fw(hdev, fw, info->nvm_hdr);
3337
3338         release_firmware(fw);
3339
3340         return err;
3341 }
3342
3343 /* identify the ROM version and check whether patches are needed */
3344 static bool btusb_qca_need_patch(struct usb_device *udev)
3345 {
3346         struct qca_version ver;
3347
3348         if (btusb_qca_send_vendor_req(udev, QCA_GET_TARGET_VERSION, &ver,
3349                                       sizeof(ver)) < 0)
3350                 return false;
3351         /* only low ROM versions need patches */
3352         return !(le32_to_cpu(ver.rom_version) & ~0xffffU);
3353 }
3354
3355 static int btusb_setup_qca(struct hci_dev *hdev)
3356 {
3357         struct btusb_data *btdata = hci_get_drvdata(hdev);
3358         struct usb_device *udev = btdata->udev;
3359         const struct qca_device_info *info = NULL;
3360         struct qca_version ver;
3361         u32 ver_rom;
3362         u8 status;
3363         int i, err;
3364
3365         err = btusb_qca_send_vendor_req(udev, QCA_GET_TARGET_VERSION, &ver,
3366                                         sizeof(ver));
3367         if (err < 0)
3368                 return err;
3369
3370         ver_rom = le32_to_cpu(ver.rom_version);
3371
3372         for (i = 0; i < ARRAY_SIZE(qca_devices_table); i++) {
3373                 if (ver_rom == qca_devices_table[i].rom_version)
3374                         info = &qca_devices_table[i];
3375         }
3376         if (!info) {
3377                 /* If the rom_version is not matched in the qca_devices_table
3378                  * and the high ROM version is not zero, we assume this chip no
3379                  * need to load the rampatch and nvm.
3380                  */
3381                 if (ver_rom & ~0xffffU)
3382                         return 0;
3383
3384                 bt_dev_err(hdev, "don't support firmware rome 0x%x", ver_rom);
3385                 return -ENODEV;
3386         }
3387
3388         err = btusb_qca_send_vendor_req(udev, QCA_CHECK_STATUS, &status,
3389                                         sizeof(status));
3390         if (err < 0)
3391                 return err;
3392
3393         if (!(status & QCA_PATCH_UPDATED)) {
3394                 err = btusb_setup_qca_load_rampatch(hdev, &ver, info);
3395                 if (err < 0)
3396                         return err;
3397         }
3398
3399         err = btusb_qca_send_vendor_req(udev, QCA_GET_TARGET_VERSION, &ver,
3400                                         sizeof(ver));
3401         if (err < 0)
3402                 return err;
3403
3404         btdata->qca_dump.fw_version = le32_to_cpu(ver.patch_version);
3405         btdata->qca_dump.controller_id = le32_to_cpu(ver.rom_version);
3406
3407         if (!(status & QCA_SYSCFG_UPDATED)) {
3408                 err = btusb_setup_qca_load_nvm(hdev, &ver, info);
3409                 if (err < 0)
3410                         return err;
3411
3412                 /* WCN6855 2.1 and later will reset to apply firmware downloaded here, so
3413                  * wait ~100ms for reset Done then go ahead, otherwise, it maybe
3414                  * cause potential enable failure.
3415                  */
3416                 if (info->rom_version >= 0x00130201)
3417                         msleep(QCA_BT_RESET_WAIT_MS);
3418         }
3419
3420         /* Mark HCI_OP_ENHANCED_SETUP_SYNC_CONN as broken as it doesn't seem to
3421          * work with the likes of HSP/HFP mSBC.
3422          */
3423         set_bit(HCI_QUIRK_BROKEN_ENHANCED_SETUP_SYNC_CONN, &hdev->quirks);
3424
3425         return 0;
3426 }
3427
3428 static inline int __set_diag_interface(struct hci_dev *hdev)
3429 {
3430         struct btusb_data *data = hci_get_drvdata(hdev);
3431         struct usb_interface *intf = data->diag;
3432         int i;
3433
3434         if (!data->diag)
3435                 return -ENODEV;
3436
3437         data->diag_tx_ep = NULL;
3438         data->diag_rx_ep = NULL;
3439
3440         for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
3441                 struct usb_endpoint_descriptor *ep_desc;
3442
3443                 ep_desc = &intf->cur_altsetting->endpoint[i].desc;
3444
3445                 if (!data->diag_tx_ep && usb_endpoint_is_bulk_out(ep_desc)) {
3446                         data->diag_tx_ep = ep_desc;
3447                         continue;
3448                 }
3449
3450                 if (!data->diag_rx_ep && usb_endpoint_is_bulk_in(ep_desc)) {
3451                         data->diag_rx_ep = ep_desc;
3452                         continue;
3453                 }
3454         }
3455
3456         if (!data->diag_tx_ep || !data->diag_rx_ep) {
3457                 bt_dev_err(hdev, "invalid diagnostic descriptors");
3458                 return -ENODEV;
3459         }
3460
3461         return 0;
3462 }
3463
3464 static struct urb *alloc_diag_urb(struct hci_dev *hdev, bool enable)
3465 {
3466         struct btusb_data *data = hci_get_drvdata(hdev);
3467         struct sk_buff *skb;
3468         struct urb *urb;
3469         unsigned int pipe;
3470
3471         if (!data->diag_tx_ep)
3472                 return ERR_PTR(-ENODEV);
3473
3474         urb = usb_alloc_urb(0, GFP_KERNEL);
3475         if (!urb)
3476                 return ERR_PTR(-ENOMEM);
3477
3478         skb = bt_skb_alloc(2, GFP_KERNEL);
3479         if (!skb) {
3480                 usb_free_urb(urb);
3481                 return ERR_PTR(-ENOMEM);
3482         }
3483
3484         skb_put_u8(skb, 0xf0);
3485         skb_put_u8(skb, enable);
3486
3487         pipe = usb_sndbulkpipe(data->udev, data->diag_tx_ep->bEndpointAddress);
3488
3489         usb_fill_bulk_urb(urb, data->udev, pipe,
3490                           skb->data, skb->len, btusb_tx_complete, skb);
3491
3492         skb->dev = (void *)hdev;
3493
3494         return urb;
3495 }
3496
3497 static int btusb_bcm_set_diag(struct hci_dev *hdev, bool enable)
3498 {
3499         struct btusb_data *data = hci_get_drvdata(hdev);
3500         struct urb *urb;
3501
3502         if (!data->diag)
3503                 return -ENODEV;
3504
3505         if (!test_bit(HCI_RUNNING, &hdev->flags))
3506                 return -ENETDOWN;
3507
3508         urb = alloc_diag_urb(hdev, enable);
3509         if (IS_ERR(urb))
3510                 return PTR_ERR(urb);
3511
3512         return submit_or_queue_tx_urb(hdev, urb);
3513 }
3514
3515 #ifdef CONFIG_PM
3516 static irqreturn_t btusb_oob_wake_handler(int irq, void *priv)
3517 {
3518         struct btusb_data *data = priv;
3519
3520         pm_wakeup_event(&data->udev->dev, 0);
3521         pm_system_wakeup();
3522
3523         /* Disable only if not already disabled (keep it balanced) */
3524         if (test_and_clear_bit(BTUSB_OOB_WAKE_ENABLED, &data->flags)) {
3525                 disable_irq_nosync(irq);
3526                 disable_irq_wake(irq);
3527         }
3528         return IRQ_HANDLED;
3529 }
3530
3531 static const struct of_device_id btusb_match_table[] = {
3532         { .compatible = "usb1286,204e" },
3533         { .compatible = "usbcf3,e300" }, /* QCA6174A */
3534         { .compatible = "usb4ca,301a" }, /* QCA6174A (Lite-On) */
3535         { }
3536 };
3537 MODULE_DEVICE_TABLE(of, btusb_match_table);
3538
3539 /* Use an oob wakeup pin? */
3540 static int btusb_config_oob_wake(struct hci_dev *hdev)
3541 {
3542         struct btusb_data *data = hci_get_drvdata(hdev);
3543         struct device *dev = &data->udev->dev;
3544         int irq, ret;
3545
3546         clear_bit(BTUSB_OOB_WAKE_ENABLED, &data->flags);
3547
3548         if (!of_match_device(btusb_match_table, dev))
3549                 return 0;
3550
3551         /* Move on if no IRQ specified */
3552         irq = of_irq_get_byname(dev->of_node, "wakeup");
3553         if (irq <= 0) {
3554                 bt_dev_dbg(hdev, "%s: no OOB Wakeup IRQ in DT", __func__);
3555                 return 0;
3556         }
3557
3558         irq_set_status_flags(irq, IRQ_NOAUTOEN);
3559         ret = devm_request_irq(&hdev->dev, irq, btusb_oob_wake_handler,
3560                                0, "OOB Wake-on-BT", data);
3561         if (ret) {
3562                 bt_dev_err(hdev, "%s: IRQ request failed", __func__);
3563                 return ret;
3564         }
3565
3566         ret = device_init_wakeup(dev, true);
3567         if (ret) {
3568                 bt_dev_err(hdev, "%s: failed to init_wakeup", __func__);
3569                 return ret;
3570         }
3571
3572         data->oob_wake_irq = irq;
3573         bt_dev_info(hdev, "OOB Wake-on-BT configured at IRQ %u", irq);
3574         return 0;
3575 }
3576 #endif
3577
3578 static void btusb_check_needs_reset_resume(struct usb_interface *intf)
3579 {
3580         if (dmi_check_system(btusb_needs_reset_resume_table))
3581                 interface_to_usbdev(intf)->quirks |= USB_QUIRK_RESET_RESUME;
3582 }
3583
3584 static bool btusb_wakeup(struct hci_dev *hdev)
3585 {
3586         struct btusb_data *data = hci_get_drvdata(hdev);
3587
3588         return device_may_wakeup(&data->udev->dev);
3589 }
3590
3591 static int btusb_shutdown_qca(struct hci_dev *hdev)
3592 {
3593         struct sk_buff *skb;
3594
3595         skb = __hci_cmd_sync(hdev, HCI_OP_RESET, 0, NULL, HCI_INIT_TIMEOUT);
3596         if (IS_ERR(skb)) {
3597                 bt_dev_err(hdev, "HCI reset during shutdown failed");
3598                 return PTR_ERR(skb);
3599         }
3600         kfree_skb(skb);
3601
3602         return 0;
3603 }
3604
3605 static ssize_t force_poll_sync_read(struct file *file, char __user *user_buf,
3606                                     size_t count, loff_t *ppos)
3607 {
3608         struct btusb_data *data = file->private_data;
3609         char buf[3];
3610
3611         buf[0] = data->poll_sync ? 'Y' : 'N';
3612         buf[1] = '\n';
3613         buf[2] = '\0';
3614         return simple_read_from_buffer(user_buf, count, ppos, buf, 2);
3615 }
3616
3617 static ssize_t force_poll_sync_write(struct file *file,
3618                                      const char __user *user_buf,
3619                                      size_t count, loff_t *ppos)
3620 {
3621         struct btusb_data *data = file->private_data;
3622         bool enable;
3623         int err;
3624
3625         err = kstrtobool_from_user(user_buf, count, &enable);
3626         if (err)
3627                 return err;
3628
3629         /* Only allow changes while the adapter is down */
3630         if (test_bit(HCI_UP, &data->hdev->flags))
3631                 return -EPERM;
3632
3633         if (data->poll_sync == enable)
3634                 return -EALREADY;
3635
3636         data->poll_sync = enable;
3637
3638         return count;
3639 }
3640
3641 static const struct file_operations force_poll_sync_fops = {
3642         .open           = simple_open,
3643         .read           = force_poll_sync_read,
3644         .write          = force_poll_sync_write,
3645         .llseek         = default_llseek,
3646 };
3647
3648 static int btusb_probe(struct usb_interface *intf,
3649                        const struct usb_device_id *id)
3650 {
3651         struct usb_endpoint_descriptor *ep_desc;
3652         struct gpio_desc *reset_gpio;
3653         struct btusb_data *data;
3654         struct hci_dev *hdev;
3655         unsigned ifnum_base;
3656         int i, err, priv_size;
3657
3658         BT_DBG("intf %p id %p", intf, id);
3659
3660         if ((id->driver_info & BTUSB_IFNUM_2) &&
3661             (intf->cur_altsetting->desc.bInterfaceNumber != 0) &&
3662             (intf->cur_altsetting->desc.bInterfaceNumber != 2))
3663                 return -ENODEV;
3664
3665         ifnum_base = intf->cur_altsetting->desc.bInterfaceNumber;
3666
3667         if (!id->driver_info) {
3668                 const struct usb_device_id *match;
3669
3670                 match = usb_match_id(intf, quirks_table);
3671                 if (match)
3672                         id = match;
3673         }
3674
3675         if (id->driver_info == BTUSB_IGNORE)
3676                 return -ENODEV;
3677
3678         if (id->driver_info & BTUSB_ATH3012) {
3679                 struct usb_device *udev = interface_to_usbdev(intf);
3680
3681                 /* Old firmware would otherwise let ath3k driver load
3682                  * patch and sysconfig files
3683                  */
3684                 if (le16_to_cpu(udev->descriptor.bcdDevice) <= 0x0001 &&
3685                     !btusb_qca_need_patch(udev))
3686                         return -ENODEV;
3687         }
3688
3689         data = devm_kzalloc(&intf->dev, sizeof(*data), GFP_KERNEL);
3690         if (!data)
3691                 return -ENOMEM;
3692
3693         for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
3694                 ep_desc = &intf->cur_altsetting->endpoint[i].desc;
3695
3696                 if (!data->intr_ep && usb_endpoint_is_int_in(ep_desc)) {
3697                         data->intr_ep = ep_desc;
3698                         continue;
3699                 }
3700
3701                 if (!data->bulk_tx_ep && usb_endpoint_is_bulk_out(ep_desc)) {
3702                         data->bulk_tx_ep = ep_desc;
3703                         continue;
3704                 }
3705
3706                 if (!data->bulk_rx_ep && usb_endpoint_is_bulk_in(ep_desc)) {
3707                         data->bulk_rx_ep = ep_desc;
3708                         continue;
3709                 }
3710         }
3711
3712         if (!data->intr_ep || !data->bulk_tx_ep || !data->bulk_rx_ep)
3713                 return -ENODEV;
3714
3715         if (id->driver_info & BTUSB_AMP) {
3716                 data->cmdreq_type = USB_TYPE_CLASS | 0x01;
3717                 data->cmdreq = 0x2b;
3718         } else {
3719                 data->cmdreq_type = USB_TYPE_CLASS;
3720                 data->cmdreq = 0x00;
3721         }
3722
3723         data->udev = interface_to_usbdev(intf);
3724         data->intf = intf;
3725
3726         INIT_WORK(&data->work, btusb_work);
3727         INIT_WORK(&data->waker, btusb_waker);
3728         INIT_DELAYED_WORK(&data->rx_work, btusb_rx_work);
3729
3730         skb_queue_head_init(&data->acl_q);
3731
3732         init_usb_anchor(&data->deferred);
3733         init_usb_anchor(&data->tx_anchor);
3734         spin_lock_init(&data->txlock);
3735
3736         init_usb_anchor(&data->intr_anchor);
3737         init_usb_anchor(&data->bulk_anchor);
3738         init_usb_anchor(&data->isoc_anchor);
3739         init_usb_anchor(&data->diag_anchor);
3740         init_usb_anchor(&data->ctrl_anchor);
3741         spin_lock_init(&data->rxlock);
3742
3743         priv_size = 0;
3744
3745         data->recv_event = hci_recv_frame;
3746         data->recv_bulk = btusb_recv_bulk;
3747
3748         if (id->driver_info & BTUSB_INTEL_COMBINED) {
3749                 /* Allocate extra space for Intel device */
3750                 priv_size += sizeof(struct btintel_data);
3751
3752                 /* Override the rx handlers */
3753                 data->recv_event = btintel_recv_event;
3754                 data->recv_bulk = btusb_recv_bulk_intel;
3755         } else if (id->driver_info & BTUSB_REALTEK) {
3756                 /* Allocate extra space for Realtek device */
3757                 priv_size += sizeof(struct btrealtek_data);
3758
3759                 data->recv_event = btusb_recv_event_realtek;
3760         } else if (id->driver_info & BTUSB_MEDIATEK) {
3761                 /* Allocate extra space for Mediatek device */
3762                 priv_size += sizeof(struct btmtk_data);
3763         }
3764
3765         data->recv_acl = hci_recv_frame;
3766
3767         hdev = hci_alloc_dev_priv(priv_size);
3768         if (!hdev)
3769                 return -ENOMEM;
3770
3771         hdev->bus = HCI_USB;
3772         hci_set_drvdata(hdev, data);
3773
3774         data->hdev = hdev;
3775
3776         SET_HCIDEV_DEV(hdev, &intf->dev);
3777
3778         reset_gpio = gpiod_get_optional(&data->udev->dev, "reset",
3779                                         GPIOD_OUT_LOW);
3780         if (IS_ERR(reset_gpio)) {
3781                 err = PTR_ERR(reset_gpio);
3782                 goto out_free_dev;
3783         } else if (reset_gpio) {
3784                 data->reset_gpio = reset_gpio;
3785         }
3786
3787         hdev->open   = btusb_open;
3788         hdev->close  = btusb_close;
3789         hdev->flush  = btusb_flush;
3790         hdev->send   = btusb_send_frame;
3791         hdev->notify = btusb_notify;
3792         hdev->wakeup = btusb_wakeup;
3793
3794 #ifdef CONFIG_PM
3795         err = btusb_config_oob_wake(hdev);
3796         if (err)
3797                 goto out_free_dev;
3798
3799         /* Marvell devices may need a specific chip configuration */
3800         if (id->driver_info & BTUSB_MARVELL && data->oob_wake_irq) {
3801                 err = marvell_config_oob_wake(hdev);
3802                 if (err)
3803                         goto out_free_dev;
3804         }
3805 #endif
3806         if (id->driver_info & BTUSB_CW6622)
3807                 set_bit(HCI_QUIRK_BROKEN_STORED_LINK_KEY, &hdev->quirks);
3808
3809         if (id->driver_info & BTUSB_BCM2045)
3810                 set_bit(HCI_QUIRK_BROKEN_STORED_LINK_KEY, &hdev->quirks);
3811
3812         if (id->driver_info & BTUSB_BCM92035)
3813                 hdev->setup = btusb_setup_bcm92035;
3814
3815         if (IS_ENABLED(CONFIG_BT_HCIBTUSB_BCM) &&
3816             (id->driver_info & BTUSB_BCM_PATCHRAM)) {
3817                 hdev->manufacturer = 15;
3818                 hdev->setup = btbcm_setup_patchram;
3819                 hdev->set_diag = btusb_bcm_set_diag;
3820                 hdev->set_bdaddr = btbcm_set_bdaddr;
3821
3822                 /* Broadcom LM_DIAG Interface numbers are hardcoded */
3823                 data->diag = usb_ifnum_to_if(data->udev, ifnum_base + 2);
3824         }
3825
3826         if (IS_ENABLED(CONFIG_BT_HCIBTUSB_BCM) &&
3827             (id->driver_info & BTUSB_BCM_APPLE)) {
3828                 hdev->manufacturer = 15;
3829                 hdev->setup = btbcm_setup_apple;
3830                 hdev->set_diag = btusb_bcm_set_diag;
3831
3832                 /* Broadcom LM_DIAG Interface numbers are hardcoded */
3833                 data->diag = usb_ifnum_to_if(data->udev, ifnum_base + 2);
3834         }
3835
3836         /* Combined Intel Device setup to support multiple setup routine */
3837         if (id->driver_info & BTUSB_INTEL_COMBINED) {
3838                 err = btintel_configure_setup(hdev, btusb_driver.name);
3839                 if (err)
3840                         goto out_free_dev;
3841
3842                 /* Transport specific configuration */
3843                 hdev->send = btusb_send_frame_intel;
3844                 hdev->cmd_timeout = btusb_intel_cmd_timeout;
3845
3846                 if (id->driver_info & BTUSB_INTEL_NO_WBS_SUPPORT)
3847                         btintel_set_flag(hdev, INTEL_ROM_LEGACY_NO_WBS_SUPPORT);
3848
3849                 if (id->driver_info & BTUSB_INTEL_BROKEN_INITIAL_NCMD)
3850                         btintel_set_flag(hdev, INTEL_BROKEN_INITIAL_NCMD);
3851
3852                 if (id->driver_info & BTUSB_INTEL_BROKEN_SHUTDOWN_LED)
3853                         btintel_set_flag(hdev, INTEL_BROKEN_SHUTDOWN_LED);
3854         }
3855
3856         if (id->driver_info & BTUSB_MARVELL)
3857                 hdev->set_bdaddr = btusb_set_bdaddr_marvell;
3858
3859         if (IS_ENABLED(CONFIG_BT_HCIBTUSB_MTK) &&
3860             (id->driver_info & BTUSB_MEDIATEK)) {
3861                 hdev->setup = btusb_mtk_setup;
3862                 hdev->shutdown = btusb_mtk_shutdown;
3863                 hdev->manufacturer = 70;
3864                 hdev->cmd_timeout = btmtk_reset_sync;
3865                 hdev->set_bdaddr = btmtk_set_bdaddr;
3866                 hdev->send = btusb_send_frame_mtk;
3867                 set_bit(HCI_QUIRK_BROKEN_ENHANCED_SETUP_SYNC_CONN, &hdev->quirks);
3868                 set_bit(HCI_QUIRK_NON_PERSISTENT_SETUP, &hdev->quirks);
3869                 data->recv_acl = btmtk_usb_recv_acl;
3870                 data->suspend = btmtk_usb_suspend;
3871                 data->resume = btmtk_usb_resume;
3872         }
3873
3874         if (id->driver_info & BTUSB_SWAVE) {
3875                 set_bit(HCI_QUIRK_FIXUP_INQUIRY_MODE, &hdev->quirks);
3876                 set_bit(HCI_QUIRK_BROKEN_LOCAL_COMMANDS, &hdev->quirks);
3877         }
3878
3879         if (id->driver_info & BTUSB_INTEL_BOOT) {
3880                 hdev->manufacturer = 2;
3881                 set_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks);
3882         }
3883
3884         if (id->driver_info & BTUSB_ATH3012) {
3885                 data->setup_on_usb = btusb_setup_qca;
3886                 hdev->set_bdaddr = btusb_set_bdaddr_ath3012;
3887                 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks);
3888                 set_bit(HCI_QUIRK_STRICT_DUPLICATE_FILTER, &hdev->quirks);
3889         }
3890
3891         if (id->driver_info & BTUSB_QCA_ROME) {
3892                 data->setup_on_usb = btusb_setup_qca;
3893                 hdev->shutdown = btusb_shutdown_qca;
3894                 hdev->set_bdaddr = btusb_set_bdaddr_ath3012;
3895                 hdev->cmd_timeout = btusb_qca_cmd_timeout;
3896                 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks);
3897                 btusb_check_needs_reset_resume(intf);
3898         }
3899
3900         if (id->driver_info & BTUSB_QCA_WCN6855) {
3901                 data->qca_dump.id_vendor = id->idVendor;
3902                 data->qca_dump.id_product = id->idProduct;
3903                 data->recv_event = btusb_recv_evt_qca;
3904                 data->recv_acl = btusb_recv_acl_qca;
3905                 hci_devcd_register(hdev, btusb_coredump_qca, btusb_dump_hdr_qca, NULL);
3906                 data->setup_on_usb = btusb_setup_qca;
3907                 hdev->shutdown = btusb_shutdown_qca;
3908                 hdev->set_bdaddr = btusb_set_bdaddr_wcn6855;
3909                 hdev->cmd_timeout = btusb_qca_cmd_timeout;
3910                 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks);
3911                 hci_set_msft_opcode(hdev, 0xFD70);
3912         }
3913
3914         if (id->driver_info & BTUSB_AMP) {
3915                 /* AMP controllers do not support SCO packets */
3916                 data->isoc = NULL;
3917         } else {
3918                 /* Interface orders are hardcoded in the specification */
3919                 data->isoc = usb_ifnum_to_if(data->udev, ifnum_base + 1);
3920                 data->isoc_ifnum = ifnum_base + 1;
3921         }
3922
3923         if (IS_ENABLED(CONFIG_BT_HCIBTUSB_RTL) &&
3924             (id->driver_info & BTUSB_REALTEK)) {
3925                 btrtl_set_driver_name(hdev, btusb_driver.name);
3926                 hdev->setup = btusb_setup_realtek;
3927                 hdev->shutdown = btrtl_shutdown_realtek;
3928                 hdev->cmd_timeout = btusb_rtl_cmd_timeout;
3929                 hdev->hw_error = btusb_rtl_hw_error;
3930
3931                 /* Realtek devices need to set remote wakeup on auto-suspend */
3932                 set_bit(BTUSB_WAKEUP_AUTOSUSPEND, &data->flags);
3933                 set_bit(BTUSB_USE_ALT3_FOR_WBS, &data->flags);
3934         }
3935
3936         if (id->driver_info & BTUSB_ACTIONS_SEMI) {
3937                 /* Support is advertised, but not implemented */
3938                 set_bit(HCI_QUIRK_BROKEN_ERR_DATA_REPORTING, &hdev->quirks);
3939                 set_bit(HCI_QUIRK_BROKEN_READ_TRANSMIT_POWER, &hdev->quirks);
3940                 set_bit(HCI_QUIRK_BROKEN_SET_RPA_TIMEOUT, &hdev->quirks);
3941                 set_bit(HCI_QUIRK_BROKEN_EXT_SCAN, &hdev->quirks);
3942                 set_bit(HCI_QUIRK_BROKEN_READ_ENC_KEY_SIZE, &hdev->quirks);
3943         }
3944
3945         if (!reset)
3946                 set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
3947
3948         if (force_scofix || id->driver_info & BTUSB_WRONG_SCO_MTU) {
3949                 if (!disable_scofix)
3950                         set_bit(HCI_QUIRK_FIXUP_BUFFER_SIZE, &hdev->quirks);
3951         }
3952
3953         if (id->driver_info & BTUSB_BROKEN_ISOC)
3954                 data->isoc = NULL;
3955
3956         if (id->driver_info & BTUSB_WIDEBAND_SPEECH)
3957                 set_bit(HCI_QUIRK_WIDEBAND_SPEECH_SUPPORTED, &hdev->quirks);
3958
3959         if (id->driver_info & BTUSB_VALID_LE_STATES)
3960                 set_bit(HCI_QUIRK_VALID_LE_STATES, &hdev->quirks);
3961
3962         if (id->driver_info & BTUSB_DIGIANSWER) {
3963                 data->cmdreq_type = USB_TYPE_VENDOR;
3964                 set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
3965         }
3966
3967         if (id->driver_info & BTUSB_CSR) {
3968                 struct usb_device *udev = data->udev;
3969                 u16 bcdDevice = le16_to_cpu(udev->descriptor.bcdDevice);
3970
3971                 /* Old firmware would otherwise execute USB reset */
3972                 if (bcdDevice < 0x117)
3973                         set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
3974
3975                 /* This must be set first in case we disable it for fakes */
3976                 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks);
3977
3978                 /* Fake CSR devices with broken commands */
3979                 if (le16_to_cpu(udev->descriptor.idVendor)  == 0x0a12 &&
3980                     le16_to_cpu(udev->descriptor.idProduct) == 0x0001)
3981                         hdev->setup = btusb_setup_csr;
3982         }
3983
3984         if (id->driver_info & BTUSB_SNIFFER) {
3985                 struct usb_device *udev = data->udev;
3986
3987                 /* New sniffer firmware has crippled HCI interface */
3988                 if (le16_to_cpu(udev->descriptor.bcdDevice) > 0x997)
3989                         set_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks);
3990         }
3991
3992         if (id->driver_info & BTUSB_INTEL_BOOT) {
3993                 /* A bug in the bootloader causes that interrupt interface is
3994                  * only enabled after receiving SetInterface(0, AltSetting=0).
3995                  */
3996                 err = usb_set_interface(data->udev, 0, 0);
3997                 if (err < 0) {
3998                         BT_ERR("failed to set interface 0, alt 0 %d", err);
3999                         goto out_free_dev;
4000                 }
4001         }
4002
4003         if (data->isoc) {
4004                 err = usb_driver_claim_interface(&btusb_driver,
4005                                                  data->isoc, data);
4006                 if (err < 0)
4007                         goto out_free_dev;
4008         }
4009
4010         if (IS_ENABLED(CONFIG_BT_HCIBTUSB_BCM) && data->diag) {
4011                 if (!usb_driver_claim_interface(&btusb_driver,
4012                                                 data->diag, data))
4013                         __set_diag_interface(hdev);
4014                 else
4015                         data->diag = NULL;
4016         }
4017
4018         if (enable_autosuspend)
4019                 usb_enable_autosuspend(data->udev);
4020
4021         data->poll_sync = enable_poll_sync;
4022
4023         err = hci_register_dev(hdev);
4024         if (err < 0)
4025                 goto out_free_dev;
4026
4027         usb_set_intfdata(intf, data);
4028
4029         debugfs_create_file("force_poll_sync", 0644, hdev->debugfs, data,
4030                             &force_poll_sync_fops);
4031
4032         return 0;
4033
4034 out_free_dev:
4035         if (data->reset_gpio)
4036                 gpiod_put(data->reset_gpio);
4037         hci_free_dev(hdev);
4038         return err;
4039 }
4040
4041 static void btusb_disconnect(struct usb_interface *intf)
4042 {
4043         struct btusb_data *data = usb_get_intfdata(intf);
4044         struct hci_dev *hdev;
4045
4046         BT_DBG("intf %p", intf);
4047
4048         if (!data)
4049                 return;
4050
4051         hdev = data->hdev;
4052         usb_set_intfdata(data->intf, NULL);
4053
4054         if (data->isoc)
4055                 usb_set_intfdata(data->isoc, NULL);
4056
4057         if (data->diag)
4058                 usb_set_intfdata(data->diag, NULL);
4059
4060         hci_unregister_dev(hdev);
4061
4062         if (intf == data->intf) {
4063                 if (data->isoc)
4064                         usb_driver_release_interface(&btusb_driver, data->isoc);
4065                 if (data->diag)
4066                         usb_driver_release_interface(&btusb_driver, data->diag);
4067         } else if (intf == data->isoc) {
4068                 if (data->diag)
4069                         usb_driver_release_interface(&btusb_driver, data->diag);
4070                 usb_driver_release_interface(&btusb_driver, data->intf);
4071         } else if (intf == data->diag) {
4072                 usb_driver_release_interface(&btusb_driver, data->intf);
4073                 if (data->isoc)
4074                         usb_driver_release_interface(&btusb_driver, data->isoc);
4075         }
4076
4077         if (data->oob_wake_irq)
4078                 device_init_wakeup(&data->udev->dev, false);
4079
4080         if (data->reset_gpio)
4081                 gpiod_put(data->reset_gpio);
4082
4083         hci_free_dev(hdev);
4084 }
4085
4086 #ifdef CONFIG_PM
4087 static int btusb_suspend(struct usb_interface *intf, pm_message_t message)
4088 {
4089         struct btusb_data *data = usb_get_intfdata(intf);
4090
4091         BT_DBG("intf %p", intf);
4092
4093         /* Don't suspend if there are connections */
4094         if (hci_conn_count(data->hdev))
4095                 return -EBUSY;
4096
4097         if (data->suspend_count++)
4098                 return 0;
4099
4100         spin_lock_irq(&data->txlock);
4101         if (!(PMSG_IS_AUTO(message) && data->tx_in_flight)) {
4102                 set_bit(BTUSB_SUSPENDING, &data->flags);
4103                 spin_unlock_irq(&data->txlock);
4104         } else {
4105                 spin_unlock_irq(&data->txlock);
4106                 data->suspend_count--;
4107                 return -EBUSY;
4108         }
4109
4110         cancel_work_sync(&data->work);
4111
4112         if (data->suspend)
4113                 data->suspend(data->hdev);
4114
4115         btusb_stop_traffic(data);
4116         usb_kill_anchored_urbs(&data->tx_anchor);
4117
4118         if (data->oob_wake_irq && device_may_wakeup(&data->udev->dev)) {
4119                 set_bit(BTUSB_OOB_WAKE_ENABLED, &data->flags);
4120                 enable_irq_wake(data->oob_wake_irq);
4121                 enable_irq(data->oob_wake_irq);
4122         }
4123
4124         /* For global suspend, Realtek devices lose the loaded fw
4125          * in them. But for autosuspend, firmware should remain.
4126          * Actually, it depends on whether the usb host sends
4127          * set feature (enable wakeup) or not.
4128          */
4129         if (test_bit(BTUSB_WAKEUP_AUTOSUSPEND, &data->flags)) {
4130                 if (PMSG_IS_AUTO(message) &&
4131                     device_can_wakeup(&data->udev->dev))
4132                         data->udev->do_remote_wakeup = 1;
4133                 else if (!PMSG_IS_AUTO(message) &&
4134                          !device_may_wakeup(&data->udev->dev)) {
4135                         data->udev->do_remote_wakeup = 0;
4136                         data->udev->reset_resume = 1;
4137                 }
4138         }
4139
4140         return 0;
4141 }
4142
4143 static void play_deferred(struct btusb_data *data)
4144 {
4145         struct urb *urb;
4146         int err;
4147
4148         while ((urb = usb_get_from_anchor(&data->deferred))) {
4149                 usb_anchor_urb(urb, &data->tx_anchor);
4150
4151                 err = usb_submit_urb(urb, GFP_ATOMIC);
4152                 if (err < 0) {
4153                         if (err != -EPERM && err != -ENODEV)
4154                                 BT_ERR("%s urb %p submission failed (%d)",
4155                                        data->hdev->name, urb, -err);
4156                         kfree(urb->setup_packet);
4157                         usb_unanchor_urb(urb);
4158                         usb_free_urb(urb);
4159                         break;
4160                 }
4161
4162                 data->tx_in_flight++;
4163                 usb_free_urb(urb);
4164         }
4165
4166         /* Cleanup the rest deferred urbs. */
4167         while ((urb = usb_get_from_anchor(&data->deferred))) {
4168                 kfree(urb->setup_packet);
4169                 usb_free_urb(urb);
4170         }
4171 }
4172
4173 static int btusb_resume(struct usb_interface *intf)
4174 {
4175         struct btusb_data *data = usb_get_intfdata(intf);
4176         struct hci_dev *hdev = data->hdev;
4177         int err = 0;
4178
4179         BT_DBG("intf %p", intf);
4180
4181         if (--data->suspend_count)
4182                 return 0;
4183
4184         /* Disable only if not already disabled (keep it balanced) */
4185         if (test_and_clear_bit(BTUSB_OOB_WAKE_ENABLED, &data->flags)) {
4186                 disable_irq(data->oob_wake_irq);
4187                 disable_irq_wake(data->oob_wake_irq);
4188         }
4189
4190         if (!test_bit(HCI_RUNNING, &hdev->flags))
4191                 goto done;
4192
4193         if (test_bit(BTUSB_INTR_RUNNING, &data->flags)) {
4194                 err = btusb_submit_intr_urb(hdev, GFP_NOIO);
4195                 if (err < 0) {
4196                         clear_bit(BTUSB_INTR_RUNNING, &data->flags);
4197                         goto failed;
4198                 }
4199         }
4200
4201         if (test_bit(BTUSB_BULK_RUNNING, &data->flags)) {
4202                 err = btusb_submit_bulk_urb(hdev, GFP_NOIO);
4203                 if (err < 0) {
4204                         clear_bit(BTUSB_BULK_RUNNING, &data->flags);
4205                         goto failed;
4206                 }
4207
4208                 btusb_submit_bulk_urb(hdev, GFP_NOIO);
4209         }
4210
4211         if (test_bit(BTUSB_ISOC_RUNNING, &data->flags)) {
4212                 if (btusb_submit_isoc_urb(hdev, GFP_NOIO) < 0)
4213                         clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
4214                 else
4215                         btusb_submit_isoc_urb(hdev, GFP_NOIO);
4216         }
4217
4218         if (data->resume)
4219                 data->resume(hdev);
4220
4221         spin_lock_irq(&data->txlock);
4222         play_deferred(data);
4223         clear_bit(BTUSB_SUSPENDING, &data->flags);
4224         spin_unlock_irq(&data->txlock);
4225         schedule_work(&data->work);
4226
4227         return 0;
4228
4229 failed:
4230         usb_scuttle_anchored_urbs(&data->deferred);
4231 done:
4232         spin_lock_irq(&data->txlock);
4233         clear_bit(BTUSB_SUSPENDING, &data->flags);
4234         spin_unlock_irq(&data->txlock);
4235
4236         return err;
4237 }
4238 #endif
4239
4240 #ifdef CONFIG_DEV_COREDUMP
4241 static void btusb_coredump(struct device *dev)
4242 {
4243         struct btusb_data *data = dev_get_drvdata(dev);
4244         struct hci_dev *hdev = data->hdev;
4245
4246         if (hdev->dump.coredump)
4247                 hdev->dump.coredump(hdev);
4248 }
4249 #endif
4250
4251 static struct usb_driver btusb_driver = {
4252         .name           = "btusb",
4253         .probe          = btusb_probe,
4254         .disconnect     = btusb_disconnect,
4255 #ifdef CONFIG_PM
4256         .suspend        = btusb_suspend,
4257         .resume         = btusb_resume,
4258 #endif
4259         .id_table       = btusb_table,
4260         .supports_autosuspend = 1,
4261         .disable_hub_initiated_lpm = 1,
4262
4263 #ifdef CONFIG_DEV_COREDUMP
4264         .driver = {
4265                 .coredump = btusb_coredump,
4266         },
4267 #endif
4268 };
4269
4270 module_usb_driver(btusb_driver);
4271
4272 module_param(disable_scofix, bool, 0644);
4273 MODULE_PARM_DESC(disable_scofix, "Disable fixup of wrong SCO buffer size");
4274
4275 module_param(force_scofix, bool, 0644);
4276 MODULE_PARM_DESC(force_scofix, "Force fixup of wrong SCO buffers size");
4277
4278 module_param(enable_autosuspend, bool, 0644);
4279 MODULE_PARM_DESC(enable_autosuspend, "Enable USB autosuspend by default");
4280
4281 module_param(reset, bool, 0644);
4282 MODULE_PARM_DESC(reset, "Send HCI reset command on initialization");
4283
4284 MODULE_AUTHOR("Marcel Holtmann <[email protected]>");
4285 MODULE_DESCRIPTION("Generic Bluetooth USB driver ver " VERSION);
4286 MODULE_VERSION(VERSION);
4287 MODULE_LICENSE("GPL");