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 <marcel@holtmann.org>
   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, 0x0038), .driver_info = BTUSB_INTEL_COMBINED },
 481         { USB_DEVICE(0x8087, 0x07da), .driver_info = BTUSB_CSR },
 482         { USB_DEVICE(0x8087, 0x07dc), .driver_info = BTUSB_INTEL_COMBINED |
 483                                                      BTUSB_INTEL_NO_WBS_SUPPORT |
 484                                                      BTUSB_INTEL_BROKEN_INITIAL_NCMD |
 485                                                      BTUSB_INTEL_BROKEN_SHUTDOWN_LED },
 486         { USB_DEVICE(0x8087, 0x0a2a), .driver_info = BTUSB_INTEL_COMBINED |
 487                                                      BTUSB_INTEL_NO_WBS_SUPPORT |
 488                                                      BTUSB_INTEL_BROKEN_SHUTDOWN_LED },
 489         { USB_DEVICE(0x8087, 0x0a2b), .driver_info = BTUSB_INTEL_COMBINED },
 490         { USB_DEVICE(0x8087, 0x0aa7), .driver_info = BTUSB_INTEL_COMBINED |
 491                                                      BTUSB_INTEL_BROKEN_SHUTDOWN_LED },
 492         { USB_DEVICE(0x8087, 0x0aaa), .driver_info = BTUSB_INTEL_COMBINED },
 493
 494         /* Other Intel Bluetooth devices */
 495         { USB_VENDOR_AND_INTERFACE_INFO(0x8087, 0xe0, 0x01, 0x01),
 496           .driver_info = BTUSB_IGNORE },
 497
 498         /* Realtek 8821CE Bluetooth devices */
 499         { USB_DEVICE(0x13d3, 0x3529), .driver_info = BTUSB_REALTEK |
 500                                                      BTUSB_WIDEBAND_SPEECH },
 501
 502         /* Realtek 8822CE Bluetooth devices */
 503         { USB_DEVICE(0x0bda, 0xb00c), .driver_info = BTUSB_REALTEK |
 504                                                      BTUSB_WIDEBAND_SPEECH },
 505         { USB_DEVICE(0x0bda, 0xc822), .driver_info = BTUSB_REALTEK |
 506                                                      BTUSB_WIDEBAND_SPEECH },
 507
 508         /* Realtek 8822CU Bluetooth devices */
 509         { USB_DEVICE(0x13d3, 0x3549), .driver_info = BTUSB_REALTEK |
 510                                                      BTUSB_WIDEBAND_SPEECH },
 511
 512         /* Realtek 8852AE Bluetooth devices */
 513         { USB_DEVICE(0x0bda, 0x2852), .driver_info = BTUSB_REALTEK |
 514                                                      BTUSB_WIDEBAND_SPEECH },
 515         { USB_DEVICE(0x0bda, 0xc852), .driver_info = BTUSB_REALTEK |
 516                                                      BTUSB_WIDEBAND_SPEECH },
 517         { USB_DEVICE(0x0bda, 0x385a), .driver_info = BTUSB_REALTEK |
 518                                                      BTUSB_WIDEBAND_SPEECH },
 519         { USB_DEVICE(0x0bda, 0x4852), .driver_info = BTUSB_REALTEK |
 520                                                      BTUSB_WIDEBAND_SPEECH },
 521         { USB_DEVICE(0x04c5, 0x165c), .driver_info = BTUSB_REALTEK |
 522                                                      BTUSB_WIDEBAND_SPEECH },
 523         { USB_DEVICE(0x04ca, 0x4006), .driver_info = BTUSB_REALTEK |
 524                                                      BTUSB_WIDEBAND_SPEECH },
 525         { USB_DEVICE(0x0cb8, 0xc549), .driver_info = BTUSB_REALTEK |
 526                                                      BTUSB_WIDEBAND_SPEECH },
 527
 528         /* Realtek 8852CE Bluetooth devices */
 529         { USB_DEVICE(0x04ca, 0x4007), .driver_info = BTUSB_REALTEK |
 530                                                      BTUSB_WIDEBAND_SPEECH },
 531         { USB_DEVICE(0x04c5, 0x1675), .driver_info = BTUSB_REALTEK |
 532                                                      BTUSB_WIDEBAND_SPEECH },
 533         { USB_DEVICE(0x0cb8, 0xc558), .driver_info = BTUSB_REALTEK |
 534                                                      BTUSB_WIDEBAND_SPEECH },
 535         { USB_DEVICE(0x13d3, 0x3587), .driver_info = BTUSB_REALTEK |
 536                                                      BTUSB_WIDEBAND_SPEECH },
 537         { USB_DEVICE(0x13d3, 0x3586), .driver_info = BTUSB_REALTEK |
 538                                                      BTUSB_WIDEBAND_SPEECH },
 539         { USB_DEVICE(0x13d3, 0x3592), .driver_info = BTUSB_REALTEK |
 540                                                      BTUSB_WIDEBAND_SPEECH },
 541
 542         /* Realtek 8852BE Bluetooth devices */
 543         { USB_DEVICE(0x0cb8, 0xc559), .driver_info = BTUSB_REALTEK |
 544                                                      BTUSB_WIDEBAND_SPEECH },
 545         { USB_DEVICE(0x0bda, 0x887b), .driver_info = BTUSB_REALTEK |
 546                                                      BTUSB_WIDEBAND_SPEECH },
 547         { USB_DEVICE(0x0bda, 0xb85b), .driver_info = BTUSB_REALTEK |
 548                                                      BTUSB_WIDEBAND_SPEECH },
 549         { USB_DEVICE(0x13d3, 0x3570), .driver_info = BTUSB_REALTEK |
 550                                                      BTUSB_WIDEBAND_SPEECH },
 551         { USB_DEVICE(0x13d3, 0x3571), .driver_info = BTUSB_REALTEK |
 552                                                      BTUSB_WIDEBAND_SPEECH },
 553         { USB_DEVICE(0x13d3, 0x3572), .driver_info = BTUSB_REALTEK |
 554                                                      BTUSB_WIDEBAND_SPEECH },
 555
 556         /* Realtek 8852BT/8852BE-VT Bluetooth devices */
 557         { USB_DEVICE(0x0bda, 0x8520), .driver_info = BTUSB_REALTEK |
 558                                                      BTUSB_WIDEBAND_SPEECH },
 559         /* Realtek Bluetooth devices */
 560         { USB_VENDOR_AND_INTERFACE_INFO(0x0bda, 0xe0, 0x01, 0x01),
 561           .driver_info = BTUSB_REALTEK },
 562
 563         /* MediaTek Bluetooth devices */
 564         { USB_VENDOR_AND_INTERFACE_INFO(0x0e8d, 0xe0, 0x01, 0x01),
 565           .driver_info = BTUSB_MEDIATEK |
 566                          BTUSB_WIDEBAND_SPEECH |
 567                          BTUSB_VALID_LE_STATES },
 568
 569         /* Additional MediaTek MT7615E Bluetooth devices */
 570         { USB_DEVICE(0x13d3, 0x3560), .driver_info = BTUSB_MEDIATEK},
 571
 572         /* Additional MediaTek MT7663 Bluetooth devices */
 573         { USB_DEVICE(0x043e, 0x310c), .driver_info = BTUSB_MEDIATEK |
 574                                                      BTUSB_WIDEBAND_SPEECH |
 575                                                      BTUSB_VALID_LE_STATES },
 576         { USB_DEVICE(0x04ca, 0x3801), .driver_info = BTUSB_MEDIATEK |
 577                                                      BTUSB_WIDEBAND_SPEECH |
 578                                                      BTUSB_VALID_LE_STATES },
 579
 580         /* Additional MediaTek MT7668 Bluetooth devices */
 581         { USB_DEVICE(0x043e, 0x3109), .driver_info = BTUSB_MEDIATEK |
 582                                                      BTUSB_WIDEBAND_SPEECH |
 583                                                      BTUSB_VALID_LE_STATES },
 584
 585         /* Additional MediaTek MT7921 Bluetooth devices */
 586         { USB_DEVICE(0x0489, 0xe0c8), .driver_info = BTUSB_MEDIATEK |
 587                                                      BTUSB_WIDEBAND_SPEECH |
 588                                                      BTUSB_VALID_LE_STATES },
 589         { USB_DEVICE(0x0489, 0xe0e0), .driver_info = BTUSB_MEDIATEK |
 590                                                      BTUSB_WIDEBAND_SPEECH |
 591                                                      BTUSB_VALID_LE_STATES },
 592         { USB_DEVICE(0x0489, 0xe0f2), .driver_info = BTUSB_MEDIATEK |
 593                                                      BTUSB_WIDEBAND_SPEECH |
 594                                                      BTUSB_VALID_LE_STATES },
 595         { USB_DEVICE(0x04ca, 0x3802), .driver_info = BTUSB_MEDIATEK |
 596                                                      BTUSB_WIDEBAND_SPEECH |
 597                                                      BTUSB_VALID_LE_STATES },
 598         { USB_DEVICE(0x13d3, 0x3563), .driver_info = BTUSB_MEDIATEK |
 599                                                      BTUSB_WIDEBAND_SPEECH |
 600                                                      BTUSB_VALID_LE_STATES },
 601         { USB_DEVICE(0x13d3, 0x3564), .driver_info = BTUSB_MEDIATEK |
 602                                                      BTUSB_WIDEBAND_SPEECH |
 603                                                      BTUSB_VALID_LE_STATES },
 604         { USB_DEVICE(0x13d3, 0x3567), .driver_info = BTUSB_MEDIATEK |
 605                                                      BTUSB_WIDEBAND_SPEECH |
 606                                                      BTUSB_VALID_LE_STATES },
 607         { USB_DEVICE(0x13d3, 0x3578), .driver_info = BTUSB_MEDIATEK |
 608                                                      BTUSB_WIDEBAND_SPEECH |
 609                                                      BTUSB_VALID_LE_STATES },
 610         { USB_DEVICE(0x13d3, 0x3583), .driver_info = BTUSB_MEDIATEK |
 611                                                      BTUSB_WIDEBAND_SPEECH |
 612                                                      BTUSB_VALID_LE_STATES },
 613         { USB_DEVICE(0x0489, 0xe0cd), .driver_info = BTUSB_MEDIATEK |
 614                                                      BTUSB_WIDEBAND_SPEECH |
 615                                                      BTUSB_VALID_LE_STATES },
 616         { USB_DEVICE(0x0e8d, 0x0608), .driver_info = BTUSB_MEDIATEK |
 617                                                      BTUSB_WIDEBAND_SPEECH |
 618                                                      BTUSB_VALID_LE_STATES },
 619
 620         /* MediaTek MT7922A Bluetooth devices */
 621         { USB_DEVICE(0x0489, 0xe0d8), .driver_info = BTUSB_MEDIATEK |
 622                                                      BTUSB_WIDEBAND_SPEECH |
 623                                                      BTUSB_VALID_LE_STATES },
 624         { USB_DEVICE(0x0489, 0xe0d9), .driver_info = BTUSB_MEDIATEK |
 625                                                      BTUSB_WIDEBAND_SPEECH |
 626                                                      BTUSB_VALID_LE_STATES },
 627         { USB_DEVICE(0x0489, 0xe0f5), .driver_info = BTUSB_MEDIATEK |
 628                                                      BTUSB_WIDEBAND_SPEECH |
 629                                                      BTUSB_VALID_LE_STATES },
 630         { USB_DEVICE(0x13d3, 0x3568), .driver_info = BTUSB_MEDIATEK |
 631                                                      BTUSB_WIDEBAND_SPEECH |
 632                                                      BTUSB_VALID_LE_STATES },
 633         { USB_DEVICE(0x0489, 0xe0e2), .driver_info = BTUSB_MEDIATEK |
 634                                                      BTUSB_WIDEBAND_SPEECH |
 635                                                      BTUSB_VALID_LE_STATES },
 636         { USB_DEVICE(0x0489, 0xe0e4), .driver_info = BTUSB_MEDIATEK |
 637                                                      BTUSB_WIDEBAND_SPEECH |
 638                                                      BTUSB_VALID_LE_STATES },
 639         { USB_DEVICE(0x0489, 0xe0f1), .driver_info = BTUSB_MEDIATEK |
 640                                                      BTUSB_WIDEBAND_SPEECH |
 641                                                      BTUSB_VALID_LE_STATES },
 642         { USB_DEVICE(0x0489, 0xe0f2), .driver_info = BTUSB_MEDIATEK |
 643                                                      BTUSB_WIDEBAND_SPEECH |
 644                                                      BTUSB_VALID_LE_STATES },
 645         { USB_DEVICE(0x0489, 0xe0f5), .driver_info = BTUSB_MEDIATEK |
 646                                                      BTUSB_WIDEBAND_SPEECH |
 647                                                      BTUSB_VALID_LE_STATES },
 648         { USB_DEVICE(0x0489, 0xe0f6), .driver_info = BTUSB_MEDIATEK |
 649                                                      BTUSB_WIDEBAND_SPEECH |
 650                                                      BTUSB_VALID_LE_STATES },
 651         { USB_DEVICE(0x0489, 0xe102), .driver_info = BTUSB_MEDIATEK |
 652                                                      BTUSB_WIDEBAND_SPEECH |
 653                                                      BTUSB_VALID_LE_STATES },
 654         { USB_DEVICE(0x04ca, 0x3804), .driver_info = BTUSB_MEDIATEK |
 655                                                      BTUSB_WIDEBAND_SPEECH |
 656                                                      BTUSB_VALID_LE_STATES },
 657         { USB_DEVICE(0x35f5, 0x7922), .driver_info = BTUSB_MEDIATEK |
 658                                                      BTUSB_WIDEBAND_SPEECH |
 659                                                      BTUSB_VALID_LE_STATES },
 660
 661         /* Additional MediaTek MT7925 Bluetooth devices */
 662         { USB_DEVICE(0x13d3, 0x3602), .driver_info = BTUSB_MEDIATEK |
 663                                                      BTUSB_WIDEBAND_SPEECH |
 664                                                      BTUSB_VALID_LE_STATES },
 665
 666         /* Additional Realtek 8723AE Bluetooth devices */
 667         { USB_DEVICE(0x0930, 0x021d), .driver_info = BTUSB_REALTEK },
 668         { USB_DEVICE(0x13d3, 0x3394), .driver_info = BTUSB_REALTEK },
 669
 670         /* Additional Realtek 8723BE Bluetooth devices */
 671         { USB_DEVICE(0x0489, 0xe085), .driver_info = BTUSB_REALTEK },
 672         { USB_DEVICE(0x0489, 0xe08b), .driver_info = BTUSB_REALTEK },
 673         { USB_DEVICE(0x04f2, 0xb49f), .driver_info = BTUSB_REALTEK },
 674         { USB_DEVICE(0x13d3, 0x3410), .driver_info = BTUSB_REALTEK },
 675         { USB_DEVICE(0x13d3, 0x3416), .driver_info = BTUSB_REALTEK },
 676         { USB_DEVICE(0x13d3, 0x3459), .driver_info = BTUSB_REALTEK },
 677         { USB_DEVICE(0x13d3, 0x3494), .driver_info = BTUSB_REALTEK },
 678
 679         /* Additional Realtek 8723BU Bluetooth devices */
 680         { USB_DEVICE(0x7392, 0xa611), .driver_info = BTUSB_REALTEK },
 681
 682         /* Additional Realtek 8723DE Bluetooth devices */
 683         { USB_DEVICE(0x0bda, 0xb009), .driver_info = BTUSB_REALTEK },
 684         { USB_DEVICE(0x2ff8, 0xb011), .driver_info = BTUSB_REALTEK },
 685
 686         /* Additional Realtek 8761BUV Bluetooth devices */
 687         { USB_DEVICE(0x2357, 0x0604), .driver_info = BTUSB_REALTEK |
 688                                                      BTUSB_WIDEBAND_SPEECH },
 689         { USB_DEVICE(0x0b05, 0x190e), .driver_info = BTUSB_REALTEK |
 690                                                      BTUSB_WIDEBAND_SPEECH },
 691         { USB_DEVICE(0x2550, 0x8761), .driver_info = BTUSB_REALTEK |
 692                                                      BTUSB_WIDEBAND_SPEECH },
 693         { USB_DEVICE(0x0bda, 0x8771), .driver_info = BTUSB_REALTEK |
 694                                                      BTUSB_WIDEBAND_SPEECH },
 695         { USB_DEVICE(0x6655, 0x8771), .driver_info = BTUSB_REALTEK |
 696                                                      BTUSB_WIDEBAND_SPEECH },
 697         { USB_DEVICE(0x7392, 0xc611), .driver_info = BTUSB_REALTEK |
 698                                                      BTUSB_WIDEBAND_SPEECH },
 699         { USB_DEVICE(0x2b89, 0x8761), .driver_info = BTUSB_REALTEK |
 700                                                      BTUSB_WIDEBAND_SPEECH },
 701
 702         /* Additional Realtek 8821AE Bluetooth devices */
 703         { USB_DEVICE(0x0b05, 0x17dc), .driver_info = BTUSB_REALTEK },
 704         { USB_DEVICE(0x13d3, 0x3414), .driver_info = BTUSB_REALTEK },
 705         { USB_DEVICE(0x13d3, 0x3458), .driver_info = BTUSB_REALTEK },
 706         { USB_DEVICE(0x13d3, 0x3461), .driver_info = BTUSB_REALTEK },
 707         { USB_DEVICE(0x13d3, 0x3462), .driver_info = BTUSB_REALTEK },
 708
 709         /* Additional Realtek 8822BE Bluetooth devices */
 710         { USB_DEVICE(0x13d3, 0x3526), .driver_info = BTUSB_REALTEK },
 711         { USB_DEVICE(0x0b05, 0x185c), .driver_info = BTUSB_REALTEK },
 712
 713         /* Additional Realtek 8822CE Bluetooth devices */
 714         { USB_DEVICE(0x04ca, 0x4005), .driver_info = BTUSB_REALTEK |
 715                                                      BTUSB_WIDEBAND_SPEECH },
 716         { USB_DEVICE(0x04c5, 0x161f), .driver_info = BTUSB_REALTEK |
 717                                                      BTUSB_WIDEBAND_SPEECH },
 718         { USB_DEVICE(0x0b05, 0x18ef), .driver_info = BTUSB_REALTEK |
 719                                                      BTUSB_WIDEBAND_SPEECH },
 720         { USB_DEVICE(0x13d3, 0x3548), .driver_info = BTUSB_REALTEK |
 721                                                      BTUSB_WIDEBAND_SPEECH },
 722         { USB_DEVICE(0x13d3, 0x3549), .driver_info = BTUSB_REALTEK |
 723                                                      BTUSB_WIDEBAND_SPEECH },
 724         { USB_DEVICE(0x13d3, 0x3553), .driver_info = BTUSB_REALTEK |
 725                                                      BTUSB_WIDEBAND_SPEECH },
 726         { USB_DEVICE(0x13d3, 0x3555), .driver_info = BTUSB_REALTEK |
 727                                                      BTUSB_WIDEBAND_SPEECH },
 728         { USB_DEVICE(0x2ff8, 0x3051), .driver_info = BTUSB_REALTEK |
 729                                                      BTUSB_WIDEBAND_SPEECH },
 730         { USB_DEVICE(0x1358, 0xc123), .driver_info = BTUSB_REALTEK |
 731                                                      BTUSB_WIDEBAND_SPEECH },
 732         { USB_DEVICE(0x0bda, 0xc123), .driver_info = BTUSB_REALTEK |
 733                                                      BTUSB_WIDEBAND_SPEECH },
 734         { USB_DEVICE(0x0cb5, 0xc547), .driver_info = BTUSB_REALTEK |
 735                                                      BTUSB_WIDEBAND_SPEECH },
 736
 737         /* Actions Semiconductor ATS2851 based devices */
 738         { USB_DEVICE(0x10d7, 0xb012), .driver_info = BTUSB_ACTIONS_SEMI },
 739
 740         /* Silicon Wave based devices */
 741         { USB_DEVICE(0x0c10, 0x0000), .driver_info = BTUSB_SWAVE },
 742
 743         { }     /* Terminating entry */
 744 };
 745
 746 /* The Bluetooth USB module build into some devices needs to be reset on resume,
 747  * this is a problem with the platform (likely shutting off all power) not with
 748  * the module itself. So we use a DMI list to match known broken platforms.
 749  */
 750 static const struct dmi_system_id btusb_needs_reset_resume_table[] = {
 751         {
 752                 /* Dell OptiPlex 3060 (QCA ROME device 0cf3:e007) */
 753                 .matches = {
 754                         DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
 755                         DMI_MATCH(DMI_PRODUCT_NAME, "OptiPlex 3060"),
 756                 },
 757         },
 758         {
 759                 /* Dell XPS 9360 (QCA ROME device 0cf3:e300) */
 760                 .matches = {
 761                         DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
 762                         DMI_MATCH(DMI_PRODUCT_NAME, "XPS 13 9360"),
 763                 },
 764         },
 765         {
 766                 /* Dell Inspiron 5565 (QCA ROME device 0cf3:e009) */
 767                 .matches = {
 768                         DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
 769                         DMI_MATCH(DMI_PRODUCT_NAME, "Inspiron 5565"),
 770                 },
 771         },
 772         {}
 773 };
 774
 775 struct qca_dump_info {
 776         /* fields for dump collection */
 777         u16 id_vendor;
 778         u16 id_product;
 779         u32 fw_version;
 780         u32 controller_id;
 781         u32 ram_dump_size;
 782         u16 ram_dump_seqno;
 783 };
 784
 785 #define BTUSB_MAX_ISOC_FRAMES   10
 786
 787 #define BTUSB_INTR_RUNNING      0
 788 #define BTUSB_BULK_RUNNING      1
 789 #define BTUSB_ISOC_RUNNING      2
 790 #define BTUSB_SUSPENDING        3
 791 #define BTUSB_DID_ISO_RESUME    4
 792 #define BTUSB_BOOTLOADER        5
 793 #define BTUSB_DOWNLOADING       6
 794 #define BTUSB_FIRMWARE_LOADED   7
 795 #define BTUSB_FIRMWARE_FAILED   8
 796 #define BTUSB_BOOTING           9
 797 #define BTUSB_DIAG_RUNNING      10
 798 #define BTUSB_OOB_WAKE_ENABLED  11
 799 #define BTUSB_HW_RESET_ACTIVE   12
 800 #define BTUSB_TX_WAIT_VND_EVT   13
 801 #define BTUSB_WAKEUP_AUTOSUSPEND        14
 802 #define BTUSB_USE_ALT3_FOR_WBS  15
 803 #define BTUSB_ALT6_CONTINUOUS_TX        16
 804 #define BTUSB_HW_SSR_ACTIVE     17
 805
 806 struct btusb_data {
 807         struct hci_dev       *hdev;
 808         struct usb_device    *udev;
 809         struct usb_interface *intf;
 810         struct usb_interface *isoc;
 811         struct usb_interface *diag;
 812         unsigned isoc_ifnum;
 813
 814         unsigned long flags;
 815
 816         bool poll_sync;
 817         int intr_interval;
 818         struct work_struct  work;
 819         struct work_struct  waker;
 820         struct delayed_work rx_work;
 821
 822         struct sk_buff_head acl_q;
 823
 824         struct usb_anchor deferred;
 825         struct usb_anchor tx_anchor;
 826         int tx_in_flight;
 827         spinlock_t txlock;
 828
 829         struct usb_anchor intr_anchor;
 830         struct usb_anchor bulk_anchor;
 831         struct usb_anchor isoc_anchor;
 832         struct usb_anchor diag_anchor;
 833         struct usb_anchor ctrl_anchor;
 834         spinlock_t rxlock;
 835
 836         struct sk_buff *evt_skb;
 837         struct sk_buff *acl_skb;
 838         struct sk_buff *sco_skb;
 839
 840         struct usb_endpoint_descriptor *intr_ep;
 841         struct usb_endpoint_descriptor *bulk_tx_ep;
 842         struct usb_endpoint_descriptor *bulk_rx_ep;
 843         struct usb_endpoint_descriptor *isoc_tx_ep;
 844         struct usb_endpoint_descriptor *isoc_rx_ep;
 845         struct usb_endpoint_descriptor *diag_tx_ep;
 846         struct usb_endpoint_descriptor *diag_rx_ep;
 847
 848         struct gpio_desc *reset_gpio;
 849
 850         __u8 cmdreq_type;
 851         __u8 cmdreq;
 852
 853         unsigned int sco_num;
 854         unsigned int air_mode;
 855         bool usb_alt6_packet_flow;
 856         int isoc_altsetting;
 857         int suspend_count;
 858
 859         int (*recv_event)(struct hci_dev *hdev, struct sk_buff *skb);
 860         int (*recv_acl)(struct hci_dev *hdev, struct sk_buff *skb);
 861         int (*recv_bulk)(struct btusb_data *data, void *buffer, int count);
 862
 863         int (*setup_on_usb)(struct hci_dev *hdev);
 864
 865         int oob_wake_irq;   /* irq for out-of-band wake-on-bt */
 866         unsigned cmd_timeout_cnt;
 867
 868         struct qca_dump_info qca_dump;
 869 };
 870
 871 static void btusb_reset(struct hci_dev *hdev)
 872 {
 873         struct btusb_data *data;
 874         int err;
 875
 876         if (hdev->reset) {
 877                 hdev->reset(hdev);
 878                 return;
 879         }
 880
 881         data = hci_get_drvdata(hdev);
 882         /* This is not an unbalanced PM reference since the device will reset */
 883         err = usb_autopm_get_interface(data->intf);
 884         if (err) {
 885                 bt_dev_err(hdev, "Failed usb_autopm_get_interface: %d", err);
 886                 return;
 887         }
 888
 889         bt_dev_err(hdev, "Resetting usb device.");
 890         usb_queue_reset_device(data->intf);
 891 }
 892
 893 static void btusb_intel_cmd_timeout(struct hci_dev *hdev)
 894 {
 895         struct btusb_data *data = hci_get_drvdata(hdev);
 896         struct gpio_desc *reset_gpio = data->reset_gpio;
 897         struct btintel_data *intel_data = hci_get_priv(hdev);
 898
 899         if (++data->cmd_timeout_cnt < 5)
 900                 return;
 901
 902         if (intel_data->acpi_reset_method) {
 903                 if (test_and_set_bit(INTEL_ACPI_RESET_ACTIVE, intel_data->flags)) {
 904                         bt_dev_err(hdev, "acpi: last reset failed ? Not resetting again");
 905                         return;
 906                 }
 907
 908                 bt_dev_err(hdev, "Initiating acpi reset method");
 909                 /* If ACPI reset method fails, lets try with legacy GPIO
 910                  * toggling
 911                  */
 912                 if (!intel_data->acpi_reset_method(hdev)) {
 913                         return;
 914                 }
 915         }
 916
 917         if (!reset_gpio) {
 918                 btusb_reset(hdev);
 919                 return;
 920         }
 921
 922         /*
 923          * Toggle the hard reset line if the platform provides one. The reset
 924          * is going to yank the device off the USB and then replug. So doing
 925          * once is enough. The cleanup is handled correctly on the way out
 926          * (standard USB disconnect), and the new device is detected cleanly
 927          * and bound to the driver again like it should be.
 928          */
 929         if (test_and_set_bit(BTUSB_HW_RESET_ACTIVE, &data->flags)) {
 930                 bt_dev_err(hdev, "last reset failed? Not resetting again");
 931                 return;
 932         }
 933
 934         bt_dev_err(hdev, "Initiating HW reset via gpio");
 935         gpiod_set_value_cansleep(reset_gpio, 1);
 936         msleep(100);
 937         gpiod_set_value_cansleep(reset_gpio, 0);
 938 }
 939
 940 #define RTK_DEVCOREDUMP_CODE_MEMDUMP            0x01
 941 #define RTK_DEVCOREDUMP_CODE_HW_ERR             0x02
 942 #define RTK_DEVCOREDUMP_CODE_CMD_TIMEOUT        0x03
 943
 944 #define RTK_SUB_EVENT_CODE_COREDUMP             0x34
 945
 946 struct rtk_dev_coredump_hdr {
 947         u8 type;
 948         u8 code;
 949         u8 reserved[2];
 950 } __packed;
 951
 952 static inline void btusb_rtl_alloc_devcoredump(struct hci_dev *hdev,
 953                 struct rtk_dev_coredump_hdr *hdr, u8 *buf, u32 len)
 954 {
 955         struct sk_buff *skb;
 956
 957         skb = alloc_skb(len + sizeof(*hdr), GFP_ATOMIC);
 958         if (!skb)
 959                 return;
 960
 961         skb_put_data(skb, hdr, sizeof(*hdr));
 962         if (len)
 963                 skb_put_data(skb, buf, len);
 964
 965         if (!hci_devcd_init(hdev, skb->len)) {
 966                 hci_devcd_append(hdev, skb);
 967                 hci_devcd_complete(hdev);
 968         } else {
 969                 bt_dev_err(hdev, "RTL: Failed to generate devcoredump");
 970                 kfree_skb(skb);
 971         }
 972 }
 973
 974 static void btusb_rtl_cmd_timeout(struct hci_dev *hdev)
 975 {
 976         struct btusb_data *data = hci_get_drvdata(hdev);
 977         struct gpio_desc *reset_gpio = data->reset_gpio;
 978         struct rtk_dev_coredump_hdr hdr = {
 979                 .type = RTK_DEVCOREDUMP_CODE_CMD_TIMEOUT,
 980         };
 981
 982         btusb_rtl_alloc_devcoredump(hdev, &hdr, NULL, 0);
 983
 984         if (++data->cmd_timeout_cnt < 5)
 985                 return;
 986
 987         if (!reset_gpio) {
 988                 btusb_reset(hdev);
 989                 return;
 990         }
 991
 992         /* Toggle the hard reset line. The Realtek device is going to
 993          * yank itself off the USB and then replug. The cleanup is handled
 994          * correctly on the way out (standard USB disconnect), and the new
 995          * device is detected cleanly and bound to the driver again like
 996          * it should be.
 997          */
 998         if (test_and_set_bit(BTUSB_HW_RESET_ACTIVE, &data->flags)) {
 999                 bt_dev_err(hdev, "last reset failed? Not resetting again");
1000                 return;
1001         }
1002
1003         bt_dev_err(hdev, "Reset Realtek device via gpio");
1004         gpiod_set_value_cansleep(reset_gpio, 1);
1005         msleep(200);
1006         gpiod_set_value_cansleep(reset_gpio, 0);
1007 }
1008
1009 static void btusb_rtl_hw_error(struct hci_dev *hdev, u8 code)
1010 {
1011         struct rtk_dev_coredump_hdr hdr = {
1012                 .type = RTK_DEVCOREDUMP_CODE_HW_ERR,
1013                 .code = code,
1014         };
1015
1016         bt_dev_err(hdev, "RTL: hw err, trigger devcoredump (%d)", code);
1017
1018         btusb_rtl_alloc_devcoredump(hdev, &hdr, NULL, 0);
1019 }
1020
1021 static void btusb_qca_cmd_timeout(struct hci_dev *hdev)
1022 {
1023         struct btusb_data *data = hci_get_drvdata(hdev);
1024         struct gpio_desc *reset_gpio = data->reset_gpio;
1025
1026         if (test_bit(BTUSB_HW_SSR_ACTIVE, &data->flags)) {
1027                 bt_dev_info(hdev, "Ramdump in progress, defer cmd_timeout");
1028                 return;
1029         }
1030
1031         if (++data->cmd_timeout_cnt < 5)
1032                 return;
1033
1034         if (reset_gpio) {
1035                 bt_dev_err(hdev, "Reset qca device via bt_en gpio");
1036
1037                 /* Toggle the hard reset line. The qca bt device is going to
1038                  * yank itself off the USB and then replug. The cleanup is handled
1039                  * correctly on the way out (standard USB disconnect), and the new
1040                  * device is detected cleanly and bound to the driver again like
1041                  * it should be.
1042                  */
1043                 if (test_and_set_bit(BTUSB_HW_RESET_ACTIVE, &data->flags)) {
1044                         bt_dev_err(hdev, "last reset failed? Not resetting again");
1045                         return;
1046                 }
1047
1048                 gpiod_set_value_cansleep(reset_gpio, 0);
1049                 msleep(200);
1050                 gpiod_set_value_cansleep(reset_gpio, 1);
1051
1052                 return;
1053         }
1054
1055         btusb_reset(hdev);
1056 }
1057
1058 static inline void btusb_free_frags(struct btusb_data *data)
1059 {
1060         unsigned long flags;
1061
1062         spin_lock_irqsave(&data->rxlock, flags);
1063
1064         dev_kfree_skb_irq(data->evt_skb);
1065         data->evt_skb = NULL;
1066
1067         dev_kfree_skb_irq(data->acl_skb);
1068         data->acl_skb = NULL;
1069
1070         dev_kfree_skb_irq(data->sco_skb);
1071         data->sco_skb = NULL;
1072
1073         spin_unlock_irqrestore(&data->rxlock, flags);
1074 }
1075
1076 static int btusb_recv_event(struct btusb_data *data, struct sk_buff *skb)
1077 {
1078         if (data->intr_interval) {
1079                 /* Trigger dequeue immediatelly if an event is received */
1080                 schedule_delayed_work(&data->rx_work, 0);
1081         }
1082
1083         return data->recv_event(data->hdev, skb);
1084 }
1085
1086 static int btusb_recv_intr(struct btusb_data *data, void *buffer, int count)
1087 {
1088         struct sk_buff *skb;
1089         unsigned long flags;
1090         int err = 0;
1091
1092         spin_lock_irqsave(&data->rxlock, flags);
1093         skb = data->evt_skb;
1094
1095         while (count) {
1096                 int len;
1097
1098                 if (!skb) {
1099                         skb = bt_skb_alloc(HCI_MAX_EVENT_SIZE, GFP_ATOMIC);
1100                         if (!skb) {
1101                                 err = -ENOMEM;
1102                                 break;
1103                         }
1104
1105                         hci_skb_pkt_type(skb) = HCI_EVENT_PKT;
1106                         hci_skb_expect(skb) = HCI_EVENT_HDR_SIZE;
1107                 }
1108
1109                 len = min_t(uint, hci_skb_expect(skb), count);
1110                 skb_put_data(skb, buffer, len);
1111
1112                 count -= len;
1113                 buffer += len;
1114                 hci_skb_expect(skb) -= len;
1115
1116                 if (skb->len == HCI_EVENT_HDR_SIZE) {
1117                         /* Complete event header */
1118                         hci_skb_expect(skb) = hci_event_hdr(skb)->plen;
1119
1120                         if (skb_tailroom(skb) < hci_skb_expect(skb)) {
1121                                 kfree_skb(skb);
1122                                 skb = NULL;
1123
1124                                 err = -EILSEQ;
1125                                 break;
1126                         }
1127                 }
1128
1129                 if (!hci_skb_expect(skb)) {
1130                         /* Complete frame */
1131                         btusb_recv_event(data, skb);
1132                         skb = NULL;
1133                 }
1134         }
1135
1136         data->evt_skb = skb;
1137         spin_unlock_irqrestore(&data->rxlock, flags);
1138
1139         return err;
1140 }
1141
1142 static int btusb_recv_acl(struct btusb_data *data, struct sk_buff *skb)
1143 {
1144         /* Only queue ACL packet if intr_interval is set as it means
1145          * force_poll_sync has been enabled.
1146          */
1147         if (!data->intr_interval)
1148                 return data->recv_acl(data->hdev, skb);
1149
1150         skb_queue_tail(&data->acl_q, skb);
1151         schedule_delayed_work(&data->rx_work, data->intr_interval);
1152
1153         return 0;
1154 }
1155
1156 static int btusb_recv_bulk(struct btusb_data *data, void *buffer, int count)
1157 {
1158         struct sk_buff *skb;
1159         unsigned long flags;
1160         int err = 0;
1161
1162         spin_lock_irqsave(&data->rxlock, flags);
1163         skb = data->acl_skb;
1164
1165         while (count) {
1166                 int len;
1167
1168                 if (!skb) {
1169                         skb = bt_skb_alloc(HCI_MAX_FRAME_SIZE, GFP_ATOMIC);
1170                         if (!skb) {
1171                                 err = -ENOMEM;
1172                                 break;
1173                         }
1174
1175                         hci_skb_pkt_type(skb) = HCI_ACLDATA_PKT;
1176                         hci_skb_expect(skb) = HCI_ACL_HDR_SIZE;
1177                 }
1178
1179                 len = min_t(uint, hci_skb_expect(skb), count);
1180                 skb_put_data(skb, buffer, len);
1181
1182                 count -= len;
1183                 buffer += len;
1184                 hci_skb_expect(skb) -= len;
1185
1186                 if (skb->len == HCI_ACL_HDR_SIZE) {
1187                         __le16 dlen = hci_acl_hdr(skb)->dlen;
1188
1189                         /* Complete ACL header */
1190                         hci_skb_expect(skb) = __le16_to_cpu(dlen);
1191
1192                         if (skb_tailroom(skb) < hci_skb_expect(skb)) {
1193                                 kfree_skb(skb);
1194                                 skb = NULL;
1195
1196                                 err = -EILSEQ;
1197                                 break;
1198                         }
1199                 }
1200
1201                 if (!hci_skb_expect(skb)) {
1202                         /* Complete frame */
1203                         btusb_recv_acl(data, skb);
1204                         skb = NULL;
1205                 }
1206         }
1207
1208         data->acl_skb = skb;
1209         spin_unlock_irqrestore(&data->rxlock, flags);
1210
1211         return err;
1212 }
1213
1214 static bool btusb_validate_sco_handle(struct hci_dev *hdev,
1215                                       struct hci_sco_hdr *hdr)
1216 {
1217         __u16 handle;
1218
1219         if (hci_dev_test_flag(hdev, HCI_USER_CHANNEL))
1220                 // Can't validate, userspace controls everything.
1221                 return true;
1222
1223         /*
1224          * USB isochronous transfers are not designed to be reliable and may
1225          * lose fragments.  When this happens, the next first fragment
1226          * encountered might actually be a continuation fragment.
1227          * Validate the handle to detect it and drop it, or else the upper
1228          * layer will get garbage for a while.
1229          */
1230
1231         handle = hci_handle(__le16_to_cpu(hdr->handle));
1232
1233         switch (hci_conn_lookup_type(hdev, handle)) {
1234         case SCO_LINK:
1235         case ESCO_LINK:
1236                 return true;
1237         default:
1238                 return false;
1239         }
1240 }
1241
1242 static int btusb_recv_isoc(struct btusb_data *data, void *buffer, int count)
1243 {
1244         struct sk_buff *skb;
1245         unsigned long flags;
1246         int err = 0;
1247
1248         spin_lock_irqsave(&data->rxlock, flags);
1249         skb = data->sco_skb;
1250
1251         while (count) {
1252                 int len;
1253
1254                 if (!skb) {
1255                         skb = bt_skb_alloc(HCI_MAX_SCO_SIZE, GFP_ATOMIC);
1256                         if (!skb) {
1257                                 err = -ENOMEM;
1258                                 break;
1259                         }
1260
1261                         hci_skb_pkt_type(skb) = HCI_SCODATA_PKT;
1262                         hci_skb_expect(skb) = HCI_SCO_HDR_SIZE;
1263                 }
1264
1265                 len = min_t(uint, hci_skb_expect(skb), count);
1266                 skb_put_data(skb, buffer, len);
1267
1268                 count -= len;
1269                 buffer += len;
1270                 hci_skb_expect(skb) -= len;
1271
1272                 if (skb->len == HCI_SCO_HDR_SIZE) {
1273                         /* Complete SCO header */
1274                         struct hci_sco_hdr *hdr = hci_sco_hdr(skb);
1275
1276                         hci_skb_expect(skb) = hdr->dlen;
1277
1278                         if (skb_tailroom(skb) < hci_skb_expect(skb) ||
1279                             !btusb_validate_sco_handle(data->hdev, hdr)) {
1280                                 kfree_skb(skb);
1281                                 skb = NULL;
1282
1283                                 err = -EILSEQ;
1284                                 break;
1285                         }
1286                 }
1287
1288                 if (!hci_skb_expect(skb)) {
1289                         /* Complete frame */
1290                         hci_recv_frame(data->hdev, skb);
1291                         skb = NULL;
1292                 }
1293         }
1294
1295         data->sco_skb = skb;
1296         spin_unlock_irqrestore(&data->rxlock, flags);
1297
1298         return err;
1299 }
1300
1301 static void btusb_intr_complete(struct urb *urb)
1302 {
1303         struct hci_dev *hdev = urb->context;
1304         struct btusb_data *data = hci_get_drvdata(hdev);
1305         int err;
1306
1307         BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
1308                urb->actual_length);
1309
1310         if (!test_bit(HCI_RUNNING, &hdev->flags))
1311                 return;
1312
1313         if (urb->status == 0) {
1314                 hdev->stat.byte_rx += urb->actual_length;
1315
1316                 if (btusb_recv_intr(data, urb->transfer_buffer,
1317                                     urb->actual_length) < 0) {
1318                         bt_dev_err(hdev, "corrupted event packet");
1319                         hdev->stat.err_rx++;
1320                 }
1321         } else if (urb->status == -ENOENT) {
1322                 /* Avoid suspend failed when usb_kill_urb */
1323                 return;
1324         }
1325
1326         if (!test_bit(BTUSB_INTR_RUNNING, &data->flags))
1327                 return;
1328
1329         usb_mark_last_busy(data->udev);
1330         usb_anchor_urb(urb, &data->intr_anchor);
1331
1332         err = usb_submit_urb(urb, GFP_ATOMIC);
1333         if (err < 0) {
1334                 /* -EPERM: urb is being killed;
1335                  * -ENODEV: device got disconnected
1336                  */
1337                 if (err != -EPERM && err != -ENODEV)
1338                         bt_dev_err(hdev, "urb %p failed to resubmit (%d)",
1339                                    urb, -err);
1340                 if (err != -EPERM)
1341                         hci_cmd_sync_cancel(hdev, -err);
1342                 usb_unanchor_urb(urb);
1343         }
1344 }
1345
1346 static int btusb_submit_intr_urb(struct hci_dev *hdev, gfp_t mem_flags)
1347 {
1348         struct btusb_data *data = hci_get_drvdata(hdev);
1349         struct urb *urb;
1350         unsigned char *buf;
1351         unsigned int pipe;
1352         int err, size;
1353
1354         BT_DBG("%s", hdev->name);
1355
1356         if (!data->intr_ep)
1357                 return -ENODEV;
1358
1359         urb = usb_alloc_urb(0, mem_flags);
1360         if (!urb)
1361                 return -ENOMEM;
1362
1363         size = le16_to_cpu(data->intr_ep->wMaxPacketSize);
1364
1365         buf = kmalloc(size, mem_flags);
1366         if (!buf) {
1367                 usb_free_urb(urb);
1368                 return -ENOMEM;
1369         }
1370
1371         pipe = usb_rcvintpipe(data->udev, data->intr_ep->bEndpointAddress);
1372
1373         usb_fill_int_urb(urb, data->udev, pipe, buf, size,
1374                          btusb_intr_complete, hdev, data->intr_ep->bInterval);
1375
1376         urb->transfer_flags |= URB_FREE_BUFFER;
1377
1378         usb_anchor_urb(urb, &data->intr_anchor);
1379
1380         err = usb_submit_urb(urb, mem_flags);
1381         if (err < 0) {
1382                 if (err != -EPERM && err != -ENODEV)
1383                         bt_dev_err(hdev, "urb %p submission failed (%d)",
1384                                    urb, -err);
1385                 if (err != -EPERM)
1386                         hci_cmd_sync_cancel(hdev, -err);
1387                 usb_unanchor_urb(urb);
1388         }
1389
1390         /* Only initialize intr_interval if URB poll sync is enabled */
1391         if (!data->poll_sync)
1392                 goto done;
1393
1394         /* The units are frames (milliseconds) for full and low speed devices,
1395          * and microframes (1/8 millisecond) for highspeed and SuperSpeed
1396          * devices.
1397          *
1398          * This is done once on open/resume so it shouldn't change even if
1399          * force_poll_sync changes.
1400          */
1401         switch (urb->dev->speed) {
1402         case USB_SPEED_SUPER_PLUS:
1403         case USB_SPEED_SUPER:   /* units are 125us */
1404                 data->intr_interval = usecs_to_jiffies(urb->interval * 125);
1405                 break;
1406         default:
1407                 data->intr_interval = msecs_to_jiffies(urb->interval);
1408                 break;
1409         }
1410
1411 done:
1412         usb_free_urb(urb);
1413
1414         return err;
1415 }
1416
1417 static void btusb_bulk_complete(struct urb *urb)
1418 {
1419         struct hci_dev *hdev = urb->context;
1420         struct btusb_data *data = hci_get_drvdata(hdev);
1421         int err;
1422
1423         BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
1424                urb->actual_length);
1425
1426         if (!test_bit(HCI_RUNNING, &hdev->flags))
1427                 return;
1428
1429         if (urb->status == 0) {
1430                 hdev->stat.byte_rx += urb->actual_length;
1431
1432                 if (data->recv_bulk(data, urb->transfer_buffer,
1433                                     urb->actual_length) < 0) {
1434                         bt_dev_err(hdev, "corrupted ACL packet");
1435                         hdev->stat.err_rx++;
1436                 }
1437         } else if (urb->status == -ENOENT) {
1438                 /* Avoid suspend failed when usb_kill_urb */
1439                 return;
1440         }
1441
1442         if (!test_bit(BTUSB_BULK_RUNNING, &data->flags))
1443                 return;
1444
1445         usb_anchor_urb(urb, &data->bulk_anchor);
1446         usb_mark_last_busy(data->udev);
1447
1448         err = usb_submit_urb(urb, GFP_ATOMIC);
1449         if (err < 0) {
1450                 /* -EPERM: urb is being killed;
1451                  * -ENODEV: device got disconnected
1452                  */
1453                 if (err != -EPERM && err != -ENODEV)
1454                         bt_dev_err(hdev, "urb %p failed to resubmit (%d)",
1455                                    urb, -err);
1456                 usb_unanchor_urb(urb);
1457         }
1458 }
1459
1460 static int btusb_submit_bulk_urb(struct hci_dev *hdev, gfp_t mem_flags)
1461 {
1462         struct btusb_data *data = hci_get_drvdata(hdev);
1463         struct urb *urb;
1464         unsigned char *buf;
1465         unsigned int pipe;
1466         int err, size = HCI_MAX_FRAME_SIZE;
1467
1468         BT_DBG("%s", hdev->name);
1469
1470         if (!data->bulk_rx_ep)
1471                 return -ENODEV;
1472
1473         urb = usb_alloc_urb(0, mem_flags);
1474         if (!urb)
1475                 return -ENOMEM;
1476
1477         buf = kmalloc(size, mem_flags);
1478         if (!buf) {
1479                 usb_free_urb(urb);
1480                 return -ENOMEM;
1481         }
1482
1483         pipe = usb_rcvbulkpipe(data->udev, data->bulk_rx_ep->bEndpointAddress);
1484
1485         usb_fill_bulk_urb(urb, data->udev, pipe, buf, size,
1486                           btusb_bulk_complete, hdev);
1487
1488         urb->transfer_flags |= URB_FREE_BUFFER;
1489
1490         usb_mark_last_busy(data->udev);
1491         usb_anchor_urb(urb, &data->bulk_anchor);
1492
1493         err = usb_submit_urb(urb, mem_flags);
1494         if (err < 0) {
1495                 if (err != -EPERM && err != -ENODEV)
1496                         bt_dev_err(hdev, "urb %p submission failed (%d)",
1497                                    urb, -err);
1498                 usb_unanchor_urb(urb);
1499         }
1500
1501         usb_free_urb(urb);
1502
1503         return err;
1504 }
1505
1506 static void btusb_isoc_complete(struct urb *urb)
1507 {
1508         struct hci_dev *hdev = urb->context;
1509         struct btusb_data *data = hci_get_drvdata(hdev);
1510         int i, err;
1511
1512         BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
1513                urb->actual_length);
1514
1515         if (!test_bit(HCI_RUNNING, &hdev->flags))
1516                 return;
1517
1518         if (urb->status == 0) {
1519                 for (i = 0; i < urb->number_of_packets; i++) {
1520                         unsigned int offset = urb->iso_frame_desc[i].offset;
1521                         unsigned int length = urb->iso_frame_desc[i].actual_length;
1522
1523                         if (urb->iso_frame_desc[i].status)
1524                                 continue;
1525
1526                         hdev->stat.byte_rx += length;
1527
1528                         if (btusb_recv_isoc(data, urb->transfer_buffer + offset,
1529                                             length) < 0) {
1530                                 bt_dev_err(hdev, "corrupted SCO packet");
1531                                 hdev->stat.err_rx++;
1532                         }
1533                 }
1534         } else if (urb->status == -ENOENT) {
1535                 /* Avoid suspend failed when usb_kill_urb */
1536                 return;
1537         }
1538
1539         if (!test_bit(BTUSB_ISOC_RUNNING, &data->flags))
1540                 return;
1541
1542         usb_anchor_urb(urb, &data->isoc_anchor);
1543
1544         err = usb_submit_urb(urb, GFP_ATOMIC);
1545         if (err < 0) {
1546                 /* -EPERM: urb is being killed;
1547                  * -ENODEV: device got disconnected
1548                  */
1549                 if (err != -EPERM && err != -ENODEV)
1550                         bt_dev_err(hdev, "urb %p failed to resubmit (%d)",
1551                                    urb, -err);
1552                 usb_unanchor_urb(urb);
1553         }
1554 }
1555
1556 static inline void __fill_isoc_descriptor_msbc(struct urb *urb, int len,
1557                                                int mtu, struct btusb_data *data)
1558 {
1559         int i = 0, offset = 0;
1560         unsigned int interval;
1561
1562         BT_DBG("len %d mtu %d", len, mtu);
1563
1564         /* For mSBC ALT 6 settings some chips need to transmit the data
1565          * continuously without the zero length of USB packets.
1566          */
1567         if (test_bit(BTUSB_ALT6_CONTINUOUS_TX, &data->flags))
1568                 goto ignore_usb_alt6_packet_flow;
1569
1570         /* For mSBC ALT 6 setting the host will send the packet at continuous
1571          * flow. As per core spec 5, vol 4, part B, table 2.1. For ALT setting
1572          * 6 the HCI PACKET INTERVAL should be 7.5ms for every usb packets.
1573          * To maintain the rate we send 63bytes of usb packets alternatively for
1574          * 7ms and 8ms to maintain the rate as 7.5ms.
1575          */
1576         if (data->usb_alt6_packet_flow) {
1577                 interval = 7;
1578                 data->usb_alt6_packet_flow = false;
1579         } else {
1580                 interval = 6;
1581                 data->usb_alt6_packet_flow = true;
1582         }
1583
1584         for (i = 0; i < interval; i++) {
1585                 urb->iso_frame_desc[i].offset = offset;
1586                 urb->iso_frame_desc[i].length = offset;
1587         }
1588
1589 ignore_usb_alt6_packet_flow:
1590         if (len && i < BTUSB_MAX_ISOC_FRAMES) {
1591                 urb->iso_frame_desc[i].offset = offset;
1592                 urb->iso_frame_desc[i].length = len;
1593                 i++;
1594         }
1595
1596         urb->number_of_packets = i;
1597 }
1598
1599 static inline void __fill_isoc_descriptor(struct urb *urb, int len, int mtu)
1600 {
1601         int i, offset = 0;
1602
1603         BT_DBG("len %d mtu %d", len, mtu);
1604
1605         for (i = 0; i < BTUSB_MAX_ISOC_FRAMES && len >= mtu;
1606                                         i++, offset += mtu, len -= mtu) {
1607                 urb->iso_frame_desc[i].offset = offset;
1608                 urb->iso_frame_desc[i].length = mtu;
1609         }
1610
1611         if (len && i < BTUSB_MAX_ISOC_FRAMES) {
1612                 urb->iso_frame_desc[i].offset = offset;
1613                 urb->iso_frame_desc[i].length = len;
1614                 i++;
1615         }
1616
1617         urb->number_of_packets = i;
1618 }
1619
1620 static int btusb_submit_isoc_urb(struct hci_dev *hdev, gfp_t mem_flags)
1621 {
1622         struct btusb_data *data = hci_get_drvdata(hdev);
1623         struct urb *urb;
1624         unsigned char *buf;
1625         unsigned int pipe;
1626         int err, size;
1627
1628         BT_DBG("%s", hdev->name);
1629
1630         if (!data->isoc_rx_ep)
1631                 return -ENODEV;
1632
1633         urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, mem_flags);
1634         if (!urb)
1635                 return -ENOMEM;
1636
1637         size = le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize) *
1638                                                 BTUSB_MAX_ISOC_FRAMES;
1639
1640         buf = kmalloc(size, mem_flags);
1641         if (!buf) {
1642                 usb_free_urb(urb);
1643                 return -ENOMEM;
1644         }
1645
1646         pipe = usb_rcvisocpipe(data->udev, data->isoc_rx_ep->bEndpointAddress);
1647
1648         usb_fill_int_urb(urb, data->udev, pipe, buf, size, btusb_isoc_complete,
1649                          hdev, data->isoc_rx_ep->bInterval);
1650
1651         urb->transfer_flags = URB_FREE_BUFFER | URB_ISO_ASAP;
1652
1653         __fill_isoc_descriptor(urb, size,
1654                                le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize));
1655
1656         usb_anchor_urb(urb, &data->isoc_anchor);
1657
1658         err = usb_submit_urb(urb, mem_flags);
1659         if (err < 0) {
1660                 if (err != -EPERM && err != -ENODEV)
1661                         bt_dev_err(hdev, "urb %p submission failed (%d)",
1662                                    urb, -err);
1663                 usb_unanchor_urb(urb);
1664         }
1665
1666         usb_free_urb(urb);
1667
1668         return err;
1669 }
1670
1671 static void btusb_diag_complete(struct urb *urb)
1672 {
1673         struct hci_dev *hdev = urb->context;
1674         struct btusb_data *data = hci_get_drvdata(hdev);
1675         int err;
1676
1677         BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
1678                urb->actual_length);
1679
1680         if (urb->status == 0) {
1681                 struct sk_buff *skb;
1682
1683                 skb = bt_skb_alloc(urb->actual_length, GFP_ATOMIC);
1684                 if (skb) {
1685                         skb_put_data(skb, urb->transfer_buffer,
1686                                      urb->actual_length);
1687                         hci_recv_diag(hdev, skb);
1688                 }
1689         } else if (urb->status == -ENOENT) {
1690                 /* Avoid suspend failed when usb_kill_urb */
1691                 return;
1692         }
1693
1694         if (!test_bit(BTUSB_DIAG_RUNNING, &data->flags))
1695                 return;
1696
1697         usb_anchor_urb(urb, &data->diag_anchor);
1698         usb_mark_last_busy(data->udev);
1699
1700         err = usb_submit_urb(urb, GFP_ATOMIC);
1701         if (err < 0) {
1702                 /* -EPERM: urb is being killed;
1703                  * -ENODEV: device got disconnected
1704                  */
1705                 if (err != -EPERM && err != -ENODEV)
1706                         bt_dev_err(hdev, "urb %p failed to resubmit (%d)",
1707                                    urb, -err);
1708                 usb_unanchor_urb(urb);
1709         }
1710 }
1711
1712 static int btusb_submit_diag_urb(struct hci_dev *hdev, gfp_t mem_flags)
1713 {
1714         struct btusb_data *data = hci_get_drvdata(hdev);
1715         struct urb *urb;
1716         unsigned char *buf;
1717         unsigned int pipe;
1718         int err, size = HCI_MAX_FRAME_SIZE;
1719
1720         BT_DBG("%s", hdev->name);
1721
1722         if (!data->diag_rx_ep)
1723                 return -ENODEV;
1724
1725         urb = usb_alloc_urb(0, mem_flags);
1726         if (!urb)
1727                 return -ENOMEM;
1728
1729         buf = kmalloc(size, mem_flags);
1730         if (!buf) {
1731                 usb_free_urb(urb);
1732                 return -ENOMEM;
1733         }
1734
1735         pipe = usb_rcvbulkpipe(data->udev, data->diag_rx_ep->bEndpointAddress);
1736
1737         usb_fill_bulk_urb(urb, data->udev, pipe, buf, size,
1738                           btusb_diag_complete, hdev);
1739
1740         urb->transfer_flags |= URB_FREE_BUFFER;
1741
1742         usb_mark_last_busy(data->udev);
1743         usb_anchor_urb(urb, &data->diag_anchor);
1744
1745         err = usb_submit_urb(urb, mem_flags);
1746         if (err < 0) {
1747                 if (err != -EPERM && err != -ENODEV)
1748                         bt_dev_err(hdev, "urb %p submission failed (%d)",
1749                                    urb, -err);
1750                 usb_unanchor_urb(urb);
1751         }
1752
1753         usb_free_urb(urb);
1754
1755         return err;
1756 }
1757
1758 static void btusb_tx_complete(struct urb *urb)
1759 {
1760         struct sk_buff *skb = urb->context;
1761         struct hci_dev *hdev = (struct hci_dev *)skb->dev;
1762         struct btusb_data *data = hci_get_drvdata(hdev);
1763         unsigned long flags;
1764
1765         BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
1766                urb->actual_length);
1767
1768         if (!test_bit(HCI_RUNNING, &hdev->flags))
1769                 goto done;
1770
1771         if (!urb->status) {
1772                 hdev->stat.byte_tx += urb->transfer_buffer_length;
1773         } else {
1774                 if (hci_skb_pkt_type(skb) == HCI_COMMAND_PKT)
1775                         hci_cmd_sync_cancel(hdev, -urb->status);
1776                 hdev->stat.err_tx++;
1777         }
1778
1779 done:
1780         spin_lock_irqsave(&data->txlock, flags);
1781         data->tx_in_flight--;
1782         spin_unlock_irqrestore(&data->txlock, flags);
1783
1784         kfree(urb->setup_packet);
1785
1786         kfree_skb(skb);
1787 }
1788
1789 static void btusb_isoc_tx_complete(struct urb *urb)
1790 {
1791         struct sk_buff *skb = urb->context;
1792         struct hci_dev *hdev = (struct hci_dev *)skb->dev;
1793
1794         BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
1795                urb->actual_length);
1796
1797         if (!test_bit(HCI_RUNNING, &hdev->flags))
1798                 goto done;
1799
1800         if (!urb->status)
1801                 hdev->stat.byte_tx += urb->transfer_buffer_length;
1802         else
1803                 hdev->stat.err_tx++;
1804
1805 done:
1806         kfree(urb->setup_packet);
1807
1808         kfree_skb(skb);
1809 }
1810
1811 static int btusb_open(struct hci_dev *hdev)
1812 {
1813         struct btusb_data *data = hci_get_drvdata(hdev);
1814         int err;
1815
1816         BT_DBG("%s", hdev->name);
1817
1818         err = usb_autopm_get_interface(data->intf);
1819         if (err < 0)
1820                 return err;
1821
1822         /* Patching USB firmware files prior to starting any URBs of HCI path
1823          * It is more safe to use USB bulk channel for downloading USB patch
1824          */
1825         if (data->setup_on_usb) {
1826                 err = data->setup_on_usb(hdev);
1827                 if (err < 0)
1828                         goto setup_fail;
1829         }
1830
1831         data->intf->needs_remote_wakeup = 1;
1832
1833         if (test_and_set_bit(BTUSB_INTR_RUNNING, &data->flags))
1834                 goto done;
1835
1836         err = btusb_submit_intr_urb(hdev, GFP_KERNEL);
1837         if (err < 0)
1838                 goto failed;
1839
1840         err = btusb_submit_bulk_urb(hdev, GFP_KERNEL);
1841         if (err < 0) {
1842                 usb_kill_anchored_urbs(&data->intr_anchor);
1843                 goto failed;
1844         }
1845
1846         set_bit(BTUSB_BULK_RUNNING, &data->flags);
1847         btusb_submit_bulk_urb(hdev, GFP_KERNEL);
1848
1849         if (data->diag) {
1850                 if (!btusb_submit_diag_urb(hdev, GFP_KERNEL))
1851                         set_bit(BTUSB_DIAG_RUNNING, &data->flags);
1852         }
1853
1854 done:
1855         usb_autopm_put_interface(data->intf);
1856         return 0;
1857
1858 failed:
1859         clear_bit(BTUSB_INTR_RUNNING, &data->flags);
1860 setup_fail:
1861         usb_autopm_put_interface(data->intf);
1862         return err;
1863 }
1864
1865 static void btusb_stop_traffic(struct btusb_data *data)
1866 {
1867         usb_kill_anchored_urbs(&data->intr_anchor);
1868         usb_kill_anchored_urbs(&data->bulk_anchor);
1869         usb_kill_anchored_urbs(&data->isoc_anchor);
1870         usb_kill_anchored_urbs(&data->diag_anchor);
1871         usb_kill_anchored_urbs(&data->ctrl_anchor);
1872 }
1873
1874 static int btusb_close(struct hci_dev *hdev)
1875 {
1876         struct btusb_data *data = hci_get_drvdata(hdev);
1877         int err;
1878
1879         BT_DBG("%s", hdev->name);
1880
1881         cancel_delayed_work(&data->rx_work);
1882         cancel_work_sync(&data->work);
1883         cancel_work_sync(&data->waker);
1884
1885         skb_queue_purge(&data->acl_q);
1886
1887         clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
1888         clear_bit(BTUSB_BULK_RUNNING, &data->flags);
1889         clear_bit(BTUSB_INTR_RUNNING, &data->flags);
1890         clear_bit(BTUSB_DIAG_RUNNING, &data->flags);
1891
1892         btusb_stop_traffic(data);
1893         btusb_free_frags(data);
1894
1895         err = usb_autopm_get_interface(data->intf);
1896         if (err < 0)
1897                 goto failed;
1898
1899         data->intf->needs_remote_wakeup = 0;
1900
1901         /* Enable remote wake up for auto-suspend */
1902         if (test_bit(BTUSB_WAKEUP_AUTOSUSPEND, &data->flags))
1903                 data->intf->needs_remote_wakeup = 1;
1904
1905         usb_autopm_put_interface(data->intf);
1906
1907 failed:
1908         usb_scuttle_anchored_urbs(&data->deferred);
1909         return 0;
1910 }
1911
1912 static int btusb_flush(struct hci_dev *hdev)
1913 {
1914         struct btusb_data *data = hci_get_drvdata(hdev);
1915
1916         BT_DBG("%s", hdev->name);
1917
1918         cancel_delayed_work(&data->rx_work);
1919
1920         skb_queue_purge(&data->acl_q);
1921
1922         usb_kill_anchored_urbs(&data->tx_anchor);
1923         btusb_free_frags(data);
1924
1925         return 0;
1926 }
1927
1928 static struct urb *alloc_ctrl_urb(struct hci_dev *hdev, struct sk_buff *skb)
1929 {
1930         struct btusb_data *data = hci_get_drvdata(hdev);
1931         struct usb_ctrlrequest *dr;
1932         struct urb *urb;
1933         unsigned int pipe;
1934
1935         urb = usb_alloc_urb(0, GFP_KERNEL);
1936         if (!urb)
1937                 return ERR_PTR(-ENOMEM);
1938
1939         dr = kmalloc(sizeof(*dr), GFP_KERNEL);
1940         if (!dr) {
1941                 usb_free_urb(urb);
1942                 return ERR_PTR(-ENOMEM);
1943         }
1944
1945         dr->bRequestType = data->cmdreq_type;
1946         dr->bRequest     = data->cmdreq;
1947         dr->wIndex       = 0;
1948         dr->wValue       = 0;
1949         dr->wLength      = __cpu_to_le16(skb->len);
1950
1951         pipe = usb_sndctrlpipe(data->udev, 0x00);
1952
1953         usb_fill_control_urb(urb, data->udev, pipe, (void *)dr,
1954                              skb->data, skb->len, btusb_tx_complete, skb);
1955
1956         skb->dev = (void *)hdev;
1957
1958         return urb;
1959 }
1960
1961 static struct urb *alloc_bulk_urb(struct hci_dev *hdev, struct sk_buff *skb)
1962 {
1963         struct btusb_data *data = hci_get_drvdata(hdev);
1964         struct urb *urb;
1965         unsigned int pipe;
1966
1967         if (!data->bulk_tx_ep)
1968                 return ERR_PTR(-ENODEV);
1969
1970         urb = usb_alloc_urb(0, GFP_KERNEL);
1971         if (!urb)
1972                 return ERR_PTR(-ENOMEM);
1973
1974         pipe = usb_sndbulkpipe(data->udev, data->bulk_tx_ep->bEndpointAddress);
1975
1976         usb_fill_bulk_urb(urb, data->udev, pipe,
1977                           skb->data, skb->len, btusb_tx_complete, skb);
1978
1979         skb->dev = (void *)hdev;
1980
1981         return urb;
1982 }
1983
1984 static struct urb *alloc_isoc_urb(struct hci_dev *hdev, struct sk_buff *skb)
1985 {
1986         struct btusb_data *data = hci_get_drvdata(hdev);
1987         struct urb *urb;
1988         unsigned int pipe;
1989
1990         if (!data->isoc_tx_ep)
1991                 return ERR_PTR(-ENODEV);
1992
1993         urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, GFP_KERNEL);
1994         if (!urb)
1995                 return ERR_PTR(-ENOMEM);
1996
1997         pipe = usb_sndisocpipe(data->udev, data->isoc_tx_ep->bEndpointAddress);
1998
1999         usb_fill_int_urb(urb, data->udev, pipe,
2000                          skb->data, skb->len, btusb_isoc_tx_complete,
2001                          skb, data->isoc_tx_ep->bInterval);
2002
2003         urb->transfer_flags  = URB_ISO_ASAP;
2004
2005         if (data->isoc_altsetting == 6)
2006                 __fill_isoc_descriptor_msbc(urb, skb->len,
2007                                             le16_to_cpu(data->isoc_tx_ep->wMaxPacketSize),
2008                                             data);
2009         else
2010                 __fill_isoc_descriptor(urb, skb->len,
2011                                        le16_to_cpu(data->isoc_tx_ep->wMaxPacketSize));
2012         skb->dev = (void *)hdev;
2013
2014         return urb;
2015 }
2016
2017 static int submit_tx_urb(struct hci_dev *hdev, struct urb *urb)
2018 {
2019         struct btusb_data *data = hci_get_drvdata(hdev);
2020         int err;
2021
2022         usb_anchor_urb(urb, &data->tx_anchor);
2023
2024         err = usb_submit_urb(urb, GFP_KERNEL);
2025         if (err < 0) {
2026                 if (err != -EPERM && err != -ENODEV)
2027                         bt_dev_err(hdev, "urb %p submission failed (%d)",
2028                                    urb, -err);
2029                 kfree(urb->setup_packet);
2030                 usb_unanchor_urb(urb);
2031         } else {
2032                 usb_mark_last_busy(data->udev);
2033         }
2034
2035         usb_free_urb(urb);
2036         return err;
2037 }
2038
2039 static int submit_or_queue_tx_urb(struct hci_dev *hdev, struct urb *urb)
2040 {
2041         struct btusb_data *data = hci_get_drvdata(hdev);
2042         unsigned long flags;
2043         bool suspending;
2044
2045         spin_lock_irqsave(&data->txlock, flags);
2046         suspending = test_bit(BTUSB_SUSPENDING, &data->flags);
2047         if (!suspending)
2048                 data->tx_in_flight++;
2049         spin_unlock_irqrestore(&data->txlock, flags);
2050
2051         if (!suspending)
2052                 return submit_tx_urb(hdev, urb);
2053
2054         usb_anchor_urb(urb, &data->deferred);
2055         schedule_work(&data->waker);
2056
2057         usb_free_urb(urb);
2058         return 0;
2059 }
2060
2061 static int btusb_send_frame(struct hci_dev *hdev, struct sk_buff *skb)
2062 {
2063         struct urb *urb;
2064
2065         BT_DBG("%s", hdev->name);
2066
2067         switch (hci_skb_pkt_type(skb)) {
2068         case HCI_COMMAND_PKT:
2069                 urb = alloc_ctrl_urb(hdev, skb);
2070                 if (IS_ERR(urb))
2071                         return PTR_ERR(urb);
2072
2073                 hdev->stat.cmd_tx++;
2074                 return submit_or_queue_tx_urb(hdev, urb);
2075
2076         case HCI_ACLDATA_PKT:
2077                 urb = alloc_bulk_urb(hdev, skb);
2078                 if (IS_ERR(urb))
2079                         return PTR_ERR(urb);
2080
2081                 hdev->stat.acl_tx++;
2082                 return submit_or_queue_tx_urb(hdev, urb);
2083
2084         case HCI_SCODATA_PKT:
2085                 if (hci_conn_num(hdev, SCO_LINK) < 1)
2086                         return -ENODEV;
2087
2088                 urb = alloc_isoc_urb(hdev, skb);
2089                 if (IS_ERR(urb))
2090                         return PTR_ERR(urb);
2091
2092                 hdev->stat.sco_tx++;
2093                 return submit_tx_urb(hdev, urb);
2094
2095         case HCI_ISODATA_PKT:
2096                 urb = alloc_bulk_urb(hdev, skb);
2097                 if (IS_ERR(urb))
2098                         return PTR_ERR(urb);
2099
2100                 return submit_or_queue_tx_urb(hdev, urb);
2101         }
2102
2103         return -EILSEQ;
2104 }
2105
2106 static void btusb_notify(struct hci_dev *hdev, unsigned int evt)
2107 {
2108         struct btusb_data *data = hci_get_drvdata(hdev);
2109
2110         BT_DBG("%s evt %d", hdev->name, evt);
2111
2112         if (hci_conn_num(hdev, SCO_LINK) != data->sco_num) {
2113                 data->sco_num = hci_conn_num(hdev, SCO_LINK);
2114                 data->air_mode = evt;
2115                 schedule_work(&data->work);
2116         }
2117 }
2118
2119 static inline int __set_isoc_interface(struct hci_dev *hdev, int altsetting)
2120 {
2121         struct btusb_data *data = hci_get_drvdata(hdev);
2122         struct usb_interface *intf = data->isoc;
2123         struct usb_endpoint_descriptor *ep_desc;
2124         int i, err;
2125
2126         if (!data->isoc)
2127                 return -ENODEV;
2128
2129         err = usb_set_interface(data->udev, data->isoc_ifnum, altsetting);
2130         if (err < 0) {
2131                 bt_dev_err(hdev, "setting interface failed (%d)", -err);
2132                 return err;
2133         }
2134
2135         data->isoc_altsetting = altsetting;
2136
2137         data->isoc_tx_ep = NULL;
2138         data->isoc_rx_ep = NULL;
2139
2140         for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
2141                 ep_desc = &intf->cur_altsetting->endpoint[i].desc;
2142
2143                 if (!data->isoc_tx_ep && usb_endpoint_is_isoc_out(ep_desc)) {
2144                         data->isoc_tx_ep = ep_desc;
2145                         continue;
2146                 }
2147
2148                 if (!data->isoc_rx_ep && usb_endpoint_is_isoc_in(ep_desc)) {
2149                         data->isoc_rx_ep = ep_desc;
2150                         continue;
2151                 }
2152         }
2153
2154         if (!data->isoc_tx_ep || !data->isoc_rx_ep) {
2155                 bt_dev_err(hdev, "invalid SCO descriptors");
2156                 return -ENODEV;
2157         }
2158
2159         return 0;
2160 }
2161
2162 static int btusb_switch_alt_setting(struct hci_dev *hdev, int new_alts)
2163 {
2164         struct btusb_data *data = hci_get_drvdata(hdev);
2165         int err;
2166
2167         if (data->isoc_altsetting != new_alts) {
2168                 unsigned long flags;
2169
2170                 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
2171                 usb_kill_anchored_urbs(&data->isoc_anchor);
2172
2173                 /* When isochronous alternate setting needs to be
2174                  * changed, because SCO connection has been added
2175                  * or removed, a packet fragment may be left in the
2176                  * reassembling state. This could lead to wrongly
2177                  * assembled fragments.
2178                  *
2179                  * Clear outstanding fragment when selecting a new
2180                  * alternate setting.
2181                  */
2182                 spin_lock_irqsave(&data->rxlock, flags);
2183                 dev_kfree_skb_irq(data->sco_skb);
2184                 data->sco_skb = NULL;
2185                 spin_unlock_irqrestore(&data->rxlock, flags);
2186
2187                 err = __set_isoc_interface(hdev, new_alts);
2188                 if (err < 0)
2189                         return err;
2190         }
2191
2192         if (!test_and_set_bit(BTUSB_ISOC_RUNNING, &data->flags)) {
2193                 if (btusb_submit_isoc_urb(hdev, GFP_KERNEL) < 0)
2194                         clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
2195                 else
2196                         btusb_submit_isoc_urb(hdev, GFP_KERNEL);
2197         }
2198
2199         return 0;
2200 }
2201
2202 static struct usb_host_interface *btusb_find_altsetting(struct btusb_data *data,
2203                                                         int alt)
2204 {
2205         struct usb_interface *intf = data->isoc;
2206         int i;
2207
2208         BT_DBG("Looking for Alt no :%d", alt);
2209
2210         if (!intf)
2211                 return NULL;
2212
2213         for (i = 0; i < intf->num_altsetting; i++) {
2214                 if (intf->altsetting[i].desc.bAlternateSetting == alt)
2215                         return &intf->altsetting[i];
2216         }
2217
2218         return NULL;
2219 }
2220
2221 static void btusb_work(struct work_struct *work)
2222 {
2223         struct btusb_data *data = container_of(work, struct btusb_data, work);
2224         struct hci_dev *hdev = data->hdev;
2225         int new_alts = 0;
2226         int err;
2227
2228         if (data->sco_num > 0) {
2229                 if (!test_bit(BTUSB_DID_ISO_RESUME, &data->flags)) {
2230                         err = usb_autopm_get_interface(data->isoc ? data->isoc : data->intf);
2231                         if (err < 0) {
2232                                 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
2233                                 usb_kill_anchored_urbs(&data->isoc_anchor);
2234                                 return;
2235                         }
2236
2237                         set_bit(BTUSB_DID_ISO_RESUME, &data->flags);
2238                 }
2239
2240                 if (data->air_mode == HCI_NOTIFY_ENABLE_SCO_CVSD) {
2241                         if (hdev->voice_setting & 0x0020) {
2242                                 static const int alts[3] = { 2, 4, 5 };
2243
2244                                 new_alts = alts[data->sco_num - 1];
2245                         } else {
2246                                 new_alts = data->sco_num;
2247                         }
2248                 } else if (data->air_mode == HCI_NOTIFY_ENABLE_SCO_TRANSP) {
2249                         /* Bluetooth USB spec recommends alt 6 (63 bytes), but
2250                          * many adapters do not support it.  Alt 1 appears to
2251                          * work for all adapters that do not have alt 6, and
2252                          * which work with WBS at all.  Some devices prefer
2253                          * alt 3 (HCI payload >= 60 Bytes let air packet
2254                          * data satisfy 60 bytes), requiring
2255                          * MTU >= 3 (packets) * 25 (size) - 3 (headers) = 72
2256                          * see also Core spec 5, vol 4, B 2.1.1 & Table 2.1.
2257                          */
2258                         if (btusb_find_altsetting(data, 6))
2259                                 new_alts = 6;
2260                         else if (btusb_find_altsetting(data, 3) &&
2261                                  hdev->sco_mtu >= 72 &&
2262                                  test_bit(BTUSB_USE_ALT3_FOR_WBS, &data->flags))
2263                                 new_alts = 3;
2264                         else
2265                                 new_alts = 1;
2266                 }
2267
2268                 if (btusb_switch_alt_setting(hdev, new_alts) < 0)
2269                         bt_dev_err(hdev, "set USB alt:(%d) failed!", new_alts);
2270         } else {
2271                 usb_kill_anchored_urbs(&data->isoc_anchor);
2272
2273                 if (test_and_clear_bit(BTUSB_ISOC_RUNNING, &data->flags))
2274                         __set_isoc_interface(hdev, 0);
2275
2276                 if (test_and_clear_bit(BTUSB_DID_ISO_RESUME, &data->flags))
2277                         usb_autopm_put_interface(data->isoc ? data->isoc : data->intf);
2278         }
2279 }
2280
2281 static void btusb_waker(struct work_struct *work)
2282 {
2283         struct btusb_data *data = container_of(work, struct btusb_data, waker);
2284         int err;
2285
2286         err = usb_autopm_get_interface(data->intf);
2287         if (err < 0)
2288                 return;
2289
2290         usb_autopm_put_interface(data->intf);
2291 }
2292
2293 static void btusb_rx_work(struct work_struct *work)
2294 {
2295         struct btusb_data *data = container_of(work, struct btusb_data,
2296                                                rx_work.work);
2297         struct sk_buff *skb;
2298
2299         /* Dequeue ACL data received during the interval */
2300         while ((skb = skb_dequeue(&data->acl_q)))
2301                 data->recv_acl(data->hdev, skb);
2302 }
2303
2304 static int btusb_setup_bcm92035(struct hci_dev *hdev)
2305 {
2306         struct sk_buff *skb;
2307         u8 val = 0x00;
2308
2309         BT_DBG("%s", hdev->name);
2310
2311         skb = __hci_cmd_sync(hdev, 0xfc3b, 1, &val, HCI_INIT_TIMEOUT);
2312         if (IS_ERR(skb))
2313                 bt_dev_err(hdev, "BCM92035 command failed (%ld)", PTR_ERR(skb));
2314         else
2315                 kfree_skb(skb);
2316
2317         return 0;
2318 }
2319
2320 static int btusb_setup_csr(struct hci_dev *hdev)
2321 {
2322         struct btusb_data *data = hci_get_drvdata(hdev);
2323         u16 bcdDevice = le16_to_cpu(data->udev->descriptor.bcdDevice);
2324         struct hci_rp_read_local_version *rp;
2325         struct sk_buff *skb;
2326         bool is_fake = false;
2327         int ret;
2328
2329         BT_DBG("%s", hdev->name);
2330
2331         skb = __hci_cmd_sync(hdev, HCI_OP_READ_LOCAL_VERSION, 0, NULL,
2332                              HCI_INIT_TIMEOUT);
2333         if (IS_ERR(skb)) {
2334                 int err = PTR_ERR(skb);
2335                 bt_dev_err(hdev, "CSR: Local version failed (%d)", err);
2336                 return err;
2337         }
2338
2339         rp = skb_pull_data(skb, sizeof(*rp));
2340         if (!rp) {
2341                 bt_dev_err(hdev, "CSR: Local version length mismatch");
2342                 kfree_skb(skb);
2343                 return -EIO;
2344         }
2345
2346         bt_dev_info(hdev, "CSR: Setting up dongle with HCI ver=%u rev=%04x",
2347                     rp->hci_ver, le16_to_cpu(rp->hci_rev));
2348
2349         bt_dev_info(hdev, "LMP ver=%u subver=%04x; manufacturer=%u",
2350                     rp->lmp_ver, le16_to_cpu(rp->lmp_subver),
2351                     le16_to_cpu(rp->manufacturer));
2352
2353         /* Detect a wide host of Chinese controllers that aren't CSR.
2354          *
2355          * Known fake bcdDevices: 0x0100, 0x0134, 0x1915, 0x2520, 0x7558, 0x8891
2356          *
2357          * The main thing they have in common is that these are really popular low-cost
2358          * options that support newer Bluetooth versions but rely on heavy VID/PID
2359          * squatting of this poor old Bluetooth 1.1 device. Even sold as such.
2360          *
2361          * We detect actual CSR devices by checking that the HCI manufacturer code
2362          * is Cambridge Silicon Radio (10) and ensuring that LMP sub-version and
2363          * HCI rev values always match. As they both store the firmware number.
2364          */
2365         if (le16_to_cpu(rp->manufacturer) != 10 ||
2366             le16_to_cpu(rp->hci_rev) != le16_to_cpu(rp->lmp_subver))
2367                 is_fake = true;
2368
2369         /* Known legit CSR firmware build numbers and their supported BT versions:
2370          * - 1.1 (0x1) -> 0x0073, 0x020d, 0x033c, 0x034e
2371          * - 1.2 (0x2) ->                 0x04d9, 0x0529
2372          * - 2.0 (0x3) ->         0x07a6, 0x07ad, 0x0c5c
2373          * - 2.1 (0x4) ->         0x149c, 0x1735, 0x1899 (0x1899 is a BlueCore4-External)
2374          * - 4.0 (0x6) ->         0x1d86, 0x2031, 0x22bb
2375          *
2376          * e.g. Real CSR dongles with LMP subversion 0x73 are old enough that
2377          *      support BT 1.1 only; so it's a dead giveaway when some
2378          *      third-party BT 4.0 dongle reuses it.
2379          */
2380         else if (le16_to_cpu(rp->lmp_subver) <= 0x034e &&
2381                  rp->hci_ver > BLUETOOTH_VER_1_1)
2382                 is_fake = true;
2383
2384         else if (le16_to_cpu(rp->lmp_subver) <= 0x0529 &&
2385                  rp->hci_ver > BLUETOOTH_VER_1_2)
2386                 is_fake = true;
2387
2388         else if (le16_to_cpu(rp->lmp_subver) <= 0x0c5c &&
2389                  rp->hci_ver > BLUETOOTH_VER_2_0)
2390                 is_fake = true;
2391
2392         else if (le16_to_cpu(rp->lmp_subver) <= 0x1899 &&
2393                  rp->hci_ver > BLUETOOTH_VER_2_1)
2394                 is_fake = true;
2395
2396         else if (le16_to_cpu(rp->lmp_subver) <= 0x22bb &&
2397                  rp->hci_ver > BLUETOOTH_VER_4_0)
2398                 is_fake = true;
2399
2400         /* Other clones which beat all the above checks */
2401         else if (bcdDevice == 0x0134 &&
2402                  le16_to_cpu(rp->lmp_subver) == 0x0c5c &&
2403                  rp->hci_ver == BLUETOOTH_VER_2_0)
2404                 is_fake = true;
2405
2406         if (is_fake) {
2407                 bt_dev_warn(hdev, "CSR: Unbranded CSR clone detected; adding workarounds and force-suspending once...");
2408
2409                 /* Generally these clones have big discrepancies between
2410                  * advertised features and what's actually supported.
2411                  * Probably will need to be expanded in the future;
2412                  * without these the controller will lock up.
2413                  */
2414                 set_bit(HCI_QUIRK_BROKEN_STORED_LINK_KEY, &hdev->quirks);
2415                 set_bit(HCI_QUIRK_BROKEN_ERR_DATA_REPORTING, &hdev->quirks);
2416                 set_bit(HCI_QUIRK_BROKEN_FILTER_CLEAR_ALL, &hdev->quirks);
2417                 set_bit(HCI_QUIRK_NO_SUSPEND_NOTIFIER, &hdev->quirks);
2418
2419                 /* Clear the reset quirk since this is not an actual
2420                  * early Bluetooth 1.1 device from CSR.
2421                  */
2422                 clear_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
2423                 clear_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks);
2424
2425                 /*
2426                  * Special workaround for these BT 4.0 chip clones, and potentially more:
2427                  *
2428                  * - 0x0134: a Barrot 8041a02                 (HCI rev: 0x0810 sub: 0x1012)
2429                  * - 0x7558: IC markings FR3191AHAL 749H15143 (HCI rev/sub-version: 0x0709)
2430                  *
2431                  * These controllers are really messed-up.
2432                  *
2433                  * 1. Their bulk RX endpoint will never report any data unless
2434                  *    the device was suspended at least once (yes, really).
2435                  * 2. They will not wakeup when autosuspended and receiving data
2436                  *    on their bulk RX endpoint from e.g. a keyboard or mouse
2437                  *    (IOW remote-wakeup support is broken for the bulk endpoint).
2438                  *
2439                  * To fix 1. enable runtime-suspend, force-suspend the
2440                  * HCI and then wake-it up by disabling runtime-suspend.
2441                  *
2442                  * To fix 2. clear the HCI's can_wake flag, this way the HCI
2443                  * will still be autosuspended when it is not open.
2444                  *
2445                  * --
2446                  *
2447                  * Because these are widespread problems we prefer generic solutions; so
2448                  * apply this initialization quirk to every controller that gets here,
2449                  * it should be harmless. The alternative is to not work at all.
2450                  */
2451                 pm_runtime_allow(&data->udev->dev);
2452
2453                 ret = pm_runtime_suspend(&data->udev->dev);
2454                 if (ret >= 0)
2455                         msleep(200);
2456                 else
2457                         bt_dev_warn(hdev, "CSR: Couldn't suspend the device for our Barrot 8041a02 receive-issue workaround");
2458
2459                 pm_runtime_forbid(&data->udev->dev);
2460
2461                 device_set_wakeup_capable(&data->udev->dev, false);
2462
2463                 /* Re-enable autosuspend if this was requested */
2464                 if (enable_autosuspend)
2465                         usb_enable_autosuspend(data->udev);
2466         }
2467
2468         kfree_skb(skb);
2469
2470         return 0;
2471 }
2472
2473 static int inject_cmd_complete(struct hci_dev *hdev, __u16 opcode)
2474 {
2475         struct sk_buff *skb;
2476         struct hci_event_hdr *hdr;
2477         struct hci_ev_cmd_complete *evt;
2478
2479         skb = bt_skb_alloc(sizeof(*hdr) + sizeof(*evt) + 1, GFP_KERNEL);
2480         if (!skb)
2481                 return -ENOMEM;
2482
2483         hdr = skb_put(skb, sizeof(*hdr));
2484         hdr->evt = HCI_EV_CMD_COMPLETE;
2485         hdr->plen = sizeof(*evt) + 1;
2486
2487         evt = skb_put(skb, sizeof(*evt));
2488         evt->ncmd = 0x01;
2489         evt->opcode = cpu_to_le16(opcode);
2490
2491         skb_put_u8(skb, 0x00);
2492
2493         hci_skb_pkt_type(skb) = HCI_EVENT_PKT;
2494
2495         return hci_recv_frame(hdev, skb);
2496 }
2497
2498 static int btusb_recv_bulk_intel(struct btusb_data *data, void *buffer,
2499                                  int count)
2500 {
2501         struct hci_dev *hdev = data->hdev;
2502
2503         /* When the device is in bootloader mode, then it can send
2504          * events via the bulk endpoint. These events are treated the
2505          * same way as the ones received from the interrupt endpoint.
2506          */
2507         if (btintel_test_flag(hdev, INTEL_BOOTLOADER))
2508                 return btusb_recv_intr(data, buffer, count);
2509
2510         return btusb_recv_bulk(data, buffer, count);
2511 }
2512
2513 static int btusb_send_frame_intel(struct hci_dev *hdev, struct sk_buff *skb)
2514 {
2515         struct urb *urb;
2516
2517         BT_DBG("%s", hdev->name);
2518
2519         switch (hci_skb_pkt_type(skb)) {
2520         case HCI_COMMAND_PKT:
2521                 if (btintel_test_flag(hdev, INTEL_BOOTLOADER)) {
2522                         struct hci_command_hdr *cmd = (void *)skb->data;
2523                         __u16 opcode = le16_to_cpu(cmd->opcode);
2524
2525                         /* When in bootloader mode and the command 0xfc09
2526                          * is received, it needs to be send down the
2527                          * bulk endpoint. So allocate a bulk URB instead.
2528                          */
2529                         if (opcode == 0xfc09)
2530                                 urb = alloc_bulk_urb(hdev, skb);
2531                         else
2532                                 urb = alloc_ctrl_urb(hdev, skb);
2533
2534                         /* When the 0xfc01 command is issued to boot into
2535                          * the operational firmware, it will actually not
2536                          * send a command complete event. To keep the flow
2537                          * control working inject that event here.
2538                          */
2539                         if (opcode == 0xfc01)
2540                                 inject_cmd_complete(hdev, opcode);
2541                 } else {
2542                         urb = alloc_ctrl_urb(hdev, skb);
2543                 }
2544                 if (IS_ERR(urb))
2545                         return PTR_ERR(urb);
2546
2547                 hdev->stat.cmd_tx++;
2548                 return submit_or_queue_tx_urb(hdev, urb);
2549
2550         case HCI_ACLDATA_PKT:
2551                 urb = alloc_bulk_urb(hdev, skb);
2552                 if (IS_ERR(urb))
2553                         return PTR_ERR(urb);
2554
2555                 hdev->stat.acl_tx++;
2556                 return submit_or_queue_tx_urb(hdev, urb);
2557
2558         case HCI_SCODATA_PKT:
2559                 if (hci_conn_num(hdev, SCO_LINK) < 1)
2560                         return -ENODEV;
2561
2562                 urb = alloc_isoc_urb(hdev, skb);
2563                 if (IS_ERR(urb))
2564                         return PTR_ERR(urb);
2565
2566                 hdev->stat.sco_tx++;
2567                 return submit_tx_urb(hdev, urb);
2568
2569         case HCI_ISODATA_PKT:
2570                 urb = alloc_bulk_urb(hdev, skb);
2571                 if (IS_ERR(urb))
2572                         return PTR_ERR(urb);
2573
2574                 return submit_or_queue_tx_urb(hdev, urb);
2575         }
2576
2577         return -EILSEQ;
2578 }
2579
2580 static int btusb_setup_realtek(struct hci_dev *hdev)
2581 {
2582         struct btusb_data *data = hci_get_drvdata(hdev);
2583         int ret;
2584
2585         ret = btrtl_setup_realtek(hdev);
2586
2587         if (btrealtek_test_flag(data->hdev, REALTEK_ALT6_CONTINUOUS_TX_CHIP))
2588                 set_bit(BTUSB_ALT6_CONTINUOUS_TX, &data->flags);
2589
2590         return ret;
2591 }
2592
2593 static int btusb_recv_event_realtek(struct hci_dev *hdev, struct sk_buff *skb)
2594 {
2595         if (skb->data[0] == HCI_VENDOR_PKT && skb->data[2] == RTK_SUB_EVENT_CODE_COREDUMP) {
2596                 struct rtk_dev_coredump_hdr hdr = {
2597                         .code = RTK_DEVCOREDUMP_CODE_MEMDUMP,
2598                 };
2599
2600                 bt_dev_dbg(hdev, "RTL: received coredump vendor evt, len %u",
2601                         skb->len);
2602
2603                 btusb_rtl_alloc_devcoredump(hdev, &hdr, skb->data, skb->len);
2604                 kfree_skb(skb);
2605
2606                 return 0;
2607         }
2608
2609         return hci_recv_frame(hdev, skb);
2610 }
2611
2612 /* UHW CR mapping */
2613 #define MTK_BT_MISC             0x70002510
2614 #define MTK_BT_SUBSYS_RST       0x70002610
2615 #define MTK_UDMA_INT_STA_BT     0x74000024
2616 #define MTK_UDMA_INT_STA_BT1    0x74000308
2617 #define MTK_BT_WDT_STATUS       0x740003A0
2618 #define MTK_EP_RST_OPT          0x74011890
2619 #define MTK_EP_RST_IN_OUT_OPT   0x00010001
2620 #define MTK_BT_RST_DONE         0x00000100
2621 #define MTK_BT_RESET_REG_CONNV3 0x70028610
2622 #define MTK_BT_READ_DEV_ID      0x70010200
2623
2624
2625 static void btusb_mtk_wmt_recv(struct urb *urb)
2626 {
2627         struct hci_dev *hdev = urb->context;
2628         struct btusb_data *data = hci_get_drvdata(hdev);
2629         struct sk_buff *skb;
2630         int err;
2631
2632         if (urb->status == 0 && urb->actual_length > 0) {
2633                 hdev->stat.byte_rx += urb->actual_length;
2634
2635                 /* WMT event shouldn't be fragmented and the size should be
2636                  * less than HCI_WMT_MAX_EVENT_SIZE.
2637                  */
2638                 skb = bt_skb_alloc(HCI_WMT_MAX_EVENT_SIZE, GFP_ATOMIC);
2639                 if (!skb) {
2640                         hdev->stat.err_rx++;
2641                         kfree(urb->setup_packet);
2642                         return;
2643                 }
2644
2645                 hci_skb_pkt_type(skb) = HCI_EVENT_PKT;
2646                 skb_put_data(skb, urb->transfer_buffer, urb->actual_length);
2647
2648                 /* When someone waits for the WMT event, the skb is being cloned
2649                  * and being processed the events from there then.
2650                  */
2651                 if (test_bit(BTUSB_TX_WAIT_VND_EVT, &data->flags)) {
2652                         data->evt_skb = skb_clone(skb, GFP_ATOMIC);
2653                         if (!data->evt_skb) {
2654                                 kfree_skb(skb);
2655                                 kfree(urb->setup_packet);
2656                                 return;
2657                         }
2658                 }
2659
2660                 err = hci_recv_frame(hdev, skb);
2661                 if (err < 0) {
2662                         kfree_skb(data->evt_skb);
2663                         data->evt_skb = NULL;
2664                         kfree(urb->setup_packet);
2665                         return;
2666                 }
2667
2668                 if (test_and_clear_bit(BTUSB_TX_WAIT_VND_EVT,
2669                                        &data->flags)) {
2670                         /* Barrier to sync with other CPUs */
2671                         smp_mb__after_atomic();
2672                         wake_up_bit(&data->flags,
2673                                     BTUSB_TX_WAIT_VND_EVT);
2674                 }
2675                 kfree(urb->setup_packet);
2676                 return;
2677         } else if (urb->status == -ENOENT) {
2678                 /* Avoid suspend failed when usb_kill_urb */
2679                 return;
2680         }
2681
2682         usb_mark_last_busy(data->udev);
2683
2684         /* The URB complete handler is still called with urb->actual_length = 0
2685          * when the event is not available, so we should keep re-submitting
2686          * URB until WMT event returns, Also, It's necessary to wait some time
2687          * between the two consecutive control URBs to relax the target device
2688          * to generate the event. Otherwise, the WMT event cannot return from
2689          * the device successfully.
2690          */
2691         udelay(500);
2692
2693         usb_anchor_urb(urb, &data->ctrl_anchor);
2694         err = usb_submit_urb(urb, GFP_ATOMIC);
2695         if (err < 0) {
2696                 kfree(urb->setup_packet);
2697                 /* -EPERM: urb is being killed;
2698                  * -ENODEV: device got disconnected
2699                  */
2700                 if (err != -EPERM && err != -ENODEV)
2701                         bt_dev_err(hdev, "urb %p failed to resubmit (%d)",
2702                                    urb, -err);
2703                 usb_unanchor_urb(urb);
2704         }
2705 }
2706
2707 static int btusb_mtk_submit_wmt_recv_urb(struct hci_dev *hdev)
2708 {
2709         struct btusb_data *data = hci_get_drvdata(hdev);
2710         struct usb_ctrlrequest *dr;
2711         unsigned char *buf;
2712         int err, size = 64;
2713         unsigned int pipe;
2714         struct urb *urb;
2715
2716         urb = usb_alloc_urb(0, GFP_KERNEL);
2717         if (!urb)
2718                 return -ENOMEM;
2719
2720         dr = kmalloc(sizeof(*dr), GFP_KERNEL);
2721         if (!dr) {
2722                 usb_free_urb(urb);
2723                 return -ENOMEM;
2724         }
2725
2726         dr->bRequestType = USB_TYPE_VENDOR | USB_DIR_IN;
2727         dr->bRequest     = 1;
2728         dr->wIndex       = cpu_to_le16(0);
2729         dr->wValue       = cpu_to_le16(48);
2730         dr->wLength      = cpu_to_le16(size);
2731
2732         buf = kmalloc(size, GFP_KERNEL);
2733         if (!buf) {
2734                 kfree(dr);
2735                 usb_free_urb(urb);
2736                 return -ENOMEM;
2737         }
2738
2739         pipe = usb_rcvctrlpipe(data->udev, 0);
2740
2741         usb_fill_control_urb(urb, data->udev, pipe, (void *)dr,
2742                              buf, size, btusb_mtk_wmt_recv, hdev);
2743
2744         urb->transfer_flags |= URB_FREE_BUFFER;
2745
2746         usb_anchor_urb(urb, &data->ctrl_anchor);
2747         err = usb_submit_urb(urb, GFP_KERNEL);
2748         if (err < 0) {
2749                 if (err != -EPERM && err != -ENODEV)
2750                         bt_dev_err(hdev, "urb %p submission failed (%d)",
2751                                    urb, -err);
2752                 usb_unanchor_urb(urb);
2753         }
2754
2755         usb_free_urb(urb);
2756
2757         return err;
2758 }
2759
2760 static int btusb_mtk_hci_wmt_sync(struct hci_dev *hdev,
2761                                   struct btmtk_hci_wmt_params *wmt_params)
2762 {
2763         struct btusb_data *data = hci_get_drvdata(hdev);
2764         struct btmtk_hci_wmt_evt_funcc *wmt_evt_funcc;
2765         u32 hlen, status = BTMTK_WMT_INVALID;
2766         struct btmtk_hci_wmt_evt *wmt_evt;
2767         struct btmtk_hci_wmt_cmd *wc;
2768         struct btmtk_wmt_hdr *hdr;
2769         int err;
2770
2771         /* Send the WMT command and wait until the WMT event returns */
2772         hlen = sizeof(*hdr) + wmt_params->dlen;
2773         if (hlen > 255)
2774                 return -EINVAL;
2775
2776         wc = kzalloc(hlen, GFP_KERNEL);
2777         if (!wc)
2778                 return -ENOMEM;
2779
2780         hdr = &wc->hdr;
2781         hdr->dir = 1;
2782         hdr->op = wmt_params->op;
2783         hdr->dlen = cpu_to_le16(wmt_params->dlen + 1);
2784         hdr->flag = wmt_params->flag;
2785         memcpy(wc->data, wmt_params->data, wmt_params->dlen);
2786
2787         set_bit(BTUSB_TX_WAIT_VND_EVT, &data->flags);
2788
2789         /* WMT cmd/event doesn't follow up the generic HCI cmd/event handling,
2790          * it needs constantly polling control pipe until the host received the
2791          * WMT event, thus, we should require to specifically acquire PM counter
2792          * on the USB to prevent the interface from entering auto suspended
2793          * while WMT cmd/event in progress.
2794          */
2795         err = usb_autopm_get_interface(data->intf);
2796         if (err < 0)
2797                 goto err_free_wc;
2798
2799         err = __hci_cmd_send(hdev, 0xfc6f, hlen, wc);
2800
2801         if (err < 0) {
2802                 clear_bit(BTUSB_TX_WAIT_VND_EVT, &data->flags);
2803                 usb_autopm_put_interface(data->intf);
2804                 goto err_free_wc;
2805         }
2806
2807         /* Submit control IN URB on demand to process the WMT event */
2808         err = btusb_mtk_submit_wmt_recv_urb(hdev);
2809
2810         usb_autopm_put_interface(data->intf);
2811
2812         if (err < 0)
2813                 goto err_free_wc;
2814
2815         /* The vendor specific WMT commands are all answered by a vendor
2816          * specific event and will have the Command Status or Command
2817          * Complete as with usual HCI command flow control.
2818          *
2819          * After sending the command, wait for BTUSB_TX_WAIT_VND_EVT
2820          * state to be cleared. The driver specific event receive routine
2821          * will clear that state and with that indicate completion of the
2822          * WMT command.
2823          */
2824         err = wait_on_bit_timeout(&data->flags, BTUSB_TX_WAIT_VND_EVT,
2825                                   TASK_INTERRUPTIBLE, HCI_INIT_TIMEOUT);
2826         if (err == -EINTR) {
2827                 bt_dev_err(hdev, "Execution of wmt command interrupted");
2828                 clear_bit(BTUSB_TX_WAIT_VND_EVT, &data->flags);
2829                 goto err_free_wc;
2830         }
2831
2832         if (err) {
2833                 bt_dev_err(hdev, "Execution of wmt command timed out");
2834                 clear_bit(BTUSB_TX_WAIT_VND_EVT, &data->flags);
2835                 err = -ETIMEDOUT;
2836                 goto err_free_wc;
2837         }
2838
2839         if (data->evt_skb == NULL)
2840                 goto err_free_wc;
2841
2842         /* Parse and handle the return WMT event */
2843         wmt_evt = (struct btmtk_hci_wmt_evt *)data->evt_skb->data;
2844         if (wmt_evt->whdr.op != hdr->op) {
2845                 bt_dev_err(hdev, "Wrong op received %d expected %d",
2846                            wmt_evt->whdr.op, hdr->op);
2847                 err = -EIO;
2848                 goto err_free_skb;
2849         }
2850
2851         switch (wmt_evt->whdr.op) {
2852         case BTMTK_WMT_SEMAPHORE:
2853                 if (wmt_evt->whdr.flag == 2)
2854                         status = BTMTK_WMT_PATCH_UNDONE;
2855                 else
2856                         status = BTMTK_WMT_PATCH_DONE;
2857                 break;
2858         case BTMTK_WMT_FUNC_CTRL:
2859                 wmt_evt_funcc = (struct btmtk_hci_wmt_evt_funcc *)wmt_evt;
2860                 if (be16_to_cpu(wmt_evt_funcc->status) == 0x404)
2861                         status = BTMTK_WMT_ON_DONE;
2862                 else if (be16_to_cpu(wmt_evt_funcc->status) == 0x420)
2863                         status = BTMTK_WMT_ON_PROGRESS;
2864                 else
2865                         status = BTMTK_WMT_ON_UNDONE;
2866                 break;
2867         case BTMTK_WMT_PATCH_DWNLD:
2868                 if (wmt_evt->whdr.flag == 2)
2869                         status = BTMTK_WMT_PATCH_DONE;
2870                 else if (wmt_evt->whdr.flag == 1)
2871                         status = BTMTK_WMT_PATCH_PROGRESS;
2872                 else
2873                         status = BTMTK_WMT_PATCH_UNDONE;
2874                 break;
2875         }
2876
2877         if (wmt_params->status)
2878                 *wmt_params->status = status;
2879
2880 err_free_skb:
2881         kfree_skb(data->evt_skb);
2882         data->evt_skb = NULL;
2883 err_free_wc:
2884         kfree(wc);
2885         return err;
2886 }
2887
2888 static int btusb_mtk_func_query(struct hci_dev *hdev)
2889 {
2890         struct btmtk_hci_wmt_params wmt_params;
2891         int status, err;
2892         u8 param = 0;
2893
2894         /* Query whether the function is enabled */
2895         wmt_params.op = BTMTK_WMT_FUNC_CTRL;
2896         wmt_params.flag = 4;
2897         wmt_params.dlen = sizeof(param);
2898         wmt_params.data = &param;
2899         wmt_params.status = &status;
2900
2901         err = btusb_mtk_hci_wmt_sync(hdev, &wmt_params);
2902         if (err < 0) {
2903                 bt_dev_err(hdev, "Failed to query function status (%d)", err);
2904                 return err;
2905         }
2906
2907         return status;
2908 }
2909
2910 static int btusb_mtk_uhw_reg_write(struct btusb_data *data, u32 reg, u32 val)
2911 {
2912         struct hci_dev *hdev = data->hdev;
2913         int pipe, err;
2914         void *buf;
2915
2916         buf = kzalloc(4, GFP_KERNEL);
2917         if (!buf)
2918                 return -ENOMEM;
2919
2920         put_unaligned_le32(val, buf);
2921
2922         pipe = usb_sndctrlpipe(data->udev, 0);
2923         err = usb_control_msg(data->udev, pipe, 0x02,
2924                               0x5E,
2925                               reg >> 16, reg & 0xffff,
2926                               buf, 4, USB_CTRL_SET_TIMEOUT);
2927         if (err < 0) {
2928                 bt_dev_err(hdev, "Failed to write uhw reg(%d)", err);
2929                 goto err_free_buf;
2930         }
2931
2932 err_free_buf:
2933         kfree(buf);
2934
2935         return err;
2936 }
2937
2938 static int btusb_mtk_uhw_reg_read(struct btusb_data *data, u32 reg, u32 *val)
2939 {
2940         struct hci_dev *hdev = data->hdev;
2941         int pipe, err;
2942         void *buf;
2943
2944         buf = kzalloc(4, GFP_KERNEL);
2945         if (!buf)
2946                 return -ENOMEM;
2947
2948         pipe = usb_rcvctrlpipe(data->udev, 0);
2949         err = usb_control_msg(data->udev, pipe, 0x01,
2950                               0xDE,
2951                               reg >> 16, reg & 0xffff,
2952                               buf, 4, USB_CTRL_SET_TIMEOUT);
2953         if (err < 0) {
2954                 bt_dev_err(hdev, "Failed to read uhw reg(%d)", err);
2955                 goto err_free_buf;
2956         }
2957
2958         *val = get_unaligned_le32(buf);
2959         bt_dev_dbg(hdev, "reg=%x, value=0x%08x", reg, *val);
2960
2961 err_free_buf:
2962         kfree(buf);
2963
2964         return err;
2965 }
2966
2967 static int btusb_mtk_reg_read(struct btusb_data *data, u32 reg, u32 *val)
2968 {
2969         int pipe, err, size = sizeof(u32);
2970         void *buf;
2971
2972         buf = kzalloc(size, GFP_KERNEL);
2973         if (!buf)
2974                 return -ENOMEM;
2975
2976         pipe = usb_rcvctrlpipe(data->udev, 0);
2977         err = usb_control_msg(data->udev, pipe, 0x63,
2978                               USB_TYPE_VENDOR | USB_DIR_IN,
2979                               reg >> 16, reg & 0xffff,
2980                               buf, size, USB_CTRL_SET_TIMEOUT);
2981         if (err < 0)
2982                 goto err_free_buf;
2983
2984         *val = get_unaligned_le32(buf);
2985
2986 err_free_buf:
2987         kfree(buf);
2988
2989         return err;
2990 }
2991
2992 static int btusb_mtk_id_get(struct btusb_data *data, u32 reg, u32 *id)
2993 {
2994         return btusb_mtk_reg_read(data, reg, id);
2995 }
2996
2997 static u32 btusb_mtk_reset_done(struct hci_dev *hdev)
2998 {
2999         struct btusb_data *data = hci_get_drvdata(hdev);
3000         u32 val = 0;
3001
3002         btusb_mtk_uhw_reg_read(data, MTK_BT_MISC, &val);
3003
3004         return val & MTK_BT_RST_DONE;
3005 }
3006
3007 static int btusb_mtk_reset(struct hci_dev *hdev, void *rst_data)
3008 {
3009         struct btusb_data *data = hci_get_drvdata(hdev);
3010         struct btmediatek_data *mediatek;
3011         u32 val;
3012         int err;
3013
3014         /* It's MediaTek specific bluetooth reset mechanism via USB */
3015         if (test_and_set_bit(BTUSB_HW_RESET_ACTIVE, &data->flags)) {
3016                 bt_dev_err(hdev, "last reset failed? Not resetting again");
3017                 return -EBUSY;
3018         }
3019
3020         err = usb_autopm_get_interface(data->intf);
3021         if (err < 0)
3022                 return err;
3023
3024         btusb_stop_traffic(data);
3025         usb_kill_anchored_urbs(&data->tx_anchor);
3026         mediatek = hci_get_priv(hdev);
3027
3028         if (mediatek->dev_id == 0x7925) {
3029                 btusb_mtk_uhw_reg_read(data, MTK_BT_RESET_REG_CONNV3, &val);
3030                 val |= (1 << 5);
3031                 btusb_mtk_uhw_reg_write(data, MTK_BT_RESET_REG_CONNV3, val);
3032                 btusb_mtk_uhw_reg_read(data, MTK_BT_RESET_REG_CONNV3, &val);
3033                 val &= 0xFFFF00FF;
3034                 val |= (1 << 13);
3035                 btusb_mtk_uhw_reg_write(data, MTK_BT_RESET_REG_CONNV3, val);
3036                 btusb_mtk_uhw_reg_write(data, MTK_EP_RST_OPT, 0x00010001);
3037                 btusb_mtk_uhw_reg_read(data, MTK_BT_RESET_REG_CONNV3, &val);
3038                 val |= (1 << 0);
3039                 btusb_mtk_uhw_reg_write(data, MTK_BT_RESET_REG_CONNV3, val);
3040                 btusb_mtk_uhw_reg_write(data, MTK_UDMA_INT_STA_BT, 0x000000FF);
3041                 btusb_mtk_uhw_reg_read(data, MTK_UDMA_INT_STA_BT, &val);
3042                 btusb_mtk_uhw_reg_write(data, MTK_UDMA_INT_STA_BT1, 0x000000FF);
3043                 btusb_mtk_uhw_reg_read(data, MTK_UDMA_INT_STA_BT1, &val);
3044                 msleep(100);
3045         } else {
3046                 /* It's Device EndPoint Reset Option Register */
3047                 bt_dev_dbg(hdev, "Initiating reset mechanism via uhw");
3048                 btusb_mtk_uhw_reg_write(data, MTK_EP_RST_OPT, MTK_EP_RST_IN_OUT_OPT);
3049                 btusb_mtk_uhw_reg_read(data, MTK_BT_WDT_STATUS, &val);
3050
3051                 /* Reset the bluetooth chip via USB interface. */
3052                 btusb_mtk_uhw_reg_write(data, MTK_BT_SUBSYS_RST, 1);
3053                 btusb_mtk_uhw_reg_write(data, MTK_UDMA_INT_STA_BT, 0x000000FF);
3054                 btusb_mtk_uhw_reg_read(data, MTK_UDMA_INT_STA_BT, &val);
3055                 btusb_mtk_uhw_reg_write(data, MTK_UDMA_INT_STA_BT1, 0x000000FF);
3056                 btusb_mtk_uhw_reg_read(data, MTK_UDMA_INT_STA_BT1, &val);
3057                 /* MT7921 need to delay 20ms between toggle reset bit */
3058                 msleep(20);
3059                 btusb_mtk_uhw_reg_write(data, MTK_BT_SUBSYS_RST, 0);
3060                 btusb_mtk_uhw_reg_read(data, MTK_BT_SUBSYS_RST, &val);
3061         }
3062
3063         err = readx_poll_timeout(btusb_mtk_reset_done, hdev, val,
3064                                  val & MTK_BT_RST_DONE, 20000, 1000000);
3065         if (err < 0)
3066                 bt_dev_err(hdev, "Reset timeout");
3067
3068         btusb_mtk_id_get(data, 0x70010200, &val);
3069         if (!val)
3070                 bt_dev_err(hdev, "Can't get device id, subsys reset fail.");
3071
3072         usb_queue_reset_device(data->intf);
3073
3074         clear_bit(BTUSB_HW_RESET_ACTIVE, &data->flags);
3075
3076         return err;
3077 }
3078
3079 static int btusb_mtk_setup(struct hci_dev *hdev)
3080 {
3081         struct btusb_data *data = hci_get_drvdata(hdev);
3082         struct btmtk_hci_wmt_params wmt_params;
3083         ktime_t calltime, delta, rettime;
3084         struct btmtk_tci_sleep tci_sleep;
3085         unsigned long long duration;
3086         struct sk_buff *skb;
3087         const char *fwname;
3088         int err, status;
3089         u32 dev_id = 0;
3090         char fw_bin_name[64];
3091         u32 fw_version = 0, fw_flavor = 0;
3092         u8 param;
3093         struct btmediatek_data *mediatek;
3094
3095         calltime = ktime_get();
3096
3097         err = btusb_mtk_id_get(data, 0x80000008, &dev_id);
3098         if (err < 0) {
3099                 bt_dev_err(hdev, "Failed to get device id (%d)", err);
3100                 return err;
3101         }
3102
3103         if (!dev_id || dev_id != 0x7663) {
3104                 err = btusb_mtk_id_get(data, 0x70010200, &dev_id);
3105                 if (err < 0) {
3106                         bt_dev_err(hdev, "Failed to get device id (%d)", err);
3107                         return err;
3108                 }
3109                 err = btusb_mtk_id_get(data, 0x80021004, &fw_version);
3110                 if (err < 0) {
3111                         bt_dev_err(hdev, "Failed to get fw version (%d)", err);
3112                         return err;
3113                 }
3114                 err = btusb_mtk_id_get(data, 0x70010020, &fw_flavor);
3115                 if (err < 0) {
3116                         bt_dev_err(hdev, "Failed to get fw flavor (%d)", err);
3117                         return err;
3118                 }
3119         }
3120
3121         mediatek = hci_get_priv(hdev);
3122         mediatek->dev_id = dev_id;
3123         mediatek->reset_sync = btusb_mtk_reset;
3124
3125         err = btmtk_register_coredump(hdev, btusb_driver.name, fw_version);
3126         if (err < 0)
3127                 bt_dev_err(hdev, "Failed to register coredump (%d)", err);
3128
3129         switch (dev_id) {
3130         case 0x7663:
3131                 fwname = FIRMWARE_MT7663;
3132                 break;
3133         case 0x7668:
3134                 fwname = FIRMWARE_MT7668;
3135                 break;
3136         case 0x7922:
3137         case 0x7961:
3138         case 0x7925:
3139                 if (dev_id == 0x7925)
3140                         snprintf(fw_bin_name, sizeof(fw_bin_name),
3141                                  "mediatek/mt%04x/BT_RAM_CODE_MT%04x_1_%x_hdr.bin",
3142                                  dev_id & 0xffff, dev_id & 0xffff, (fw_version & 0xff) + 1);
3143                 else if (dev_id == 0x7961 && fw_flavor)
3144                         snprintf(fw_bin_name, sizeof(fw_bin_name),
3145                                  "mediatek/BT_RAM_CODE_MT%04x_1a_%x_hdr.bin",
3146                                  dev_id & 0xffff, (fw_version & 0xff) + 1);
3147                 else
3148                         snprintf(fw_bin_name, sizeof(fw_bin_name),
3149                                  "mediatek/BT_RAM_CODE_MT%04x_1_%x_hdr.bin",
3150                                  dev_id & 0xffff, (fw_version & 0xff) + 1);
3151
3152                 err = btmtk_setup_firmware_79xx(hdev, fw_bin_name,
3153                                                 btusb_mtk_hci_wmt_sync);
3154                 if (err < 0) {
3155                         bt_dev_err(hdev, "Failed to set up firmware (%d)", err);
3156                         return err;
3157                 }
3158
3159                 /* It's Device EndPoint Reset Option Register */
3160                 btusb_mtk_uhw_reg_write(data, MTK_EP_RST_OPT, MTK_EP_RST_IN_OUT_OPT);
3161
3162                 /* Enable Bluetooth protocol */
3163                 param = 1;
3164                 wmt_params.op = BTMTK_WMT_FUNC_CTRL;
3165                 wmt_params.flag = 0;
3166                 wmt_params.dlen = sizeof(param);
3167                 wmt_params.data = &param;
3168                 wmt_params.status = NULL;
3169
3170                 err = btusb_mtk_hci_wmt_sync(hdev, &wmt_params);
3171                 if (err < 0) {
3172                         bt_dev_err(hdev, "Failed to send wmt func ctrl (%d)", err);
3173                         return err;
3174                 }
3175
3176                 hci_set_msft_opcode(hdev, 0xFD30);
3177                 hci_set_aosp_capable(hdev);
3178                 goto done;
3179         default:
3180                 bt_dev_err(hdev, "Unsupported hardware variant (%08x)",
3181                            dev_id);
3182                 return -ENODEV;
3183         }
3184
3185         /* Query whether the firmware is already download */
3186         wmt_params.op = BTMTK_WMT_SEMAPHORE;
3187         wmt_params.flag = 1;
3188         wmt_params.dlen = 0;
3189         wmt_params.data = NULL;
3190         wmt_params.status = &status;
3191
3192         err = btusb_mtk_hci_wmt_sync(hdev, &wmt_params);
3193         if (err < 0) {
3194                 bt_dev_err(hdev, "Failed to query firmware status (%d)", err);
3195                 return err;
3196         }
3197
3198         if (status == BTMTK_WMT_PATCH_DONE) {
3199                 bt_dev_info(hdev, "firmware already downloaded");
3200                 goto ignore_setup_fw;
3201         }
3202
3203         /* Setup a firmware which the device definitely requires */
3204         err = btmtk_setup_firmware(hdev, fwname,
3205                                    btusb_mtk_hci_wmt_sync);
3206         if (err < 0)
3207                 return err;
3208
3209 ignore_setup_fw:
3210         err = readx_poll_timeout(btusb_mtk_func_query, hdev, status,
3211                                  status < 0 || status != BTMTK_WMT_ON_PROGRESS,
3212                                  2000, 5000000);
3213         /* -ETIMEDOUT happens */
3214         if (err < 0)
3215                 return err;
3216
3217         /* The other errors happen in btusb_mtk_func_query */
3218         if (status < 0)
3219                 return status;
3220
3221         if (status == BTMTK_WMT_ON_DONE) {
3222                 bt_dev_info(hdev, "function already on");
3223                 goto ignore_func_on;
3224         }
3225
3226         /* Enable Bluetooth protocol */
3227         param = 1;
3228         wmt_params.op = BTMTK_WMT_FUNC_CTRL;
3229         wmt_params.flag = 0;
3230         wmt_params.dlen = sizeof(param);
3231         wmt_params.data = &param;
3232         wmt_params.status = NULL;
3233
3234         err = btusb_mtk_hci_wmt_sync(hdev, &wmt_params);
3235         if (err < 0) {
3236                 bt_dev_err(hdev, "Failed to send wmt func ctrl (%d)", err);
3237                 return err;
3238         }
3239
3240 ignore_func_on:
3241         /* Apply the low power environment setup */
3242         tci_sleep.mode = 0x5;
3243         tci_sleep.duration = cpu_to_le16(0x640);
3244         tci_sleep.host_duration = cpu_to_le16(0x640);
3245         tci_sleep.host_wakeup_pin = 0;
3246         tci_sleep.time_compensation = 0;
3247
3248         skb = __hci_cmd_sync(hdev, 0xfc7a, sizeof(tci_sleep), &tci_sleep,
3249                              HCI_INIT_TIMEOUT);
3250         if (IS_ERR(skb)) {
3251                 err = PTR_ERR(skb);
3252                 bt_dev_err(hdev, "Failed to apply low power setting (%d)", err);
3253                 return err;
3254         }
3255         kfree_skb(skb);
3256
3257 done:
3258         rettime = ktime_get();
3259         delta = ktime_sub(rettime, calltime);
3260         duration = (unsigned long long)ktime_to_ns(delta) >> 10;
3261
3262         bt_dev_info(hdev, "Device setup in %llu usecs", duration);
3263
3264         return 0;
3265 }
3266
3267 static int btusb_mtk_shutdown(struct hci_dev *hdev)
3268 {
3269         struct btmtk_hci_wmt_params wmt_params;
3270         u8 param = 0;
3271         int err;
3272
3273         /* Disable the device */
3274         wmt_params.op = BTMTK_WMT_FUNC_CTRL;
3275         wmt_params.flag = 0;
3276         wmt_params.dlen = sizeof(param);
3277         wmt_params.data = &param;
3278         wmt_params.status = NULL;
3279
3280         err = btusb_mtk_hci_wmt_sync(hdev, &wmt_params);
3281         if (err < 0) {
3282                 bt_dev_err(hdev, "Failed to send wmt func ctrl (%d)", err);
3283                 return err;
3284         }
3285
3286         return 0;
3287 }
3288
3289 static int btusb_recv_acl_mtk(struct hci_dev *hdev, struct sk_buff *skb)
3290 {
3291         struct btusb_data *data = hci_get_drvdata(hdev);
3292         u16 handle = le16_to_cpu(hci_acl_hdr(skb)->handle);
3293
3294         switch (handle) {
3295         case 0xfc6f:            /* Firmware dump from device */
3296                 /* When the firmware hangs, the device can no longer
3297                  * suspend and thus disable auto-suspend.
3298                  */
3299                 usb_disable_autosuspend(data->udev);
3300
3301                 /* We need to forward the diagnostic packet to userspace daemon
3302                  * for backward compatibility, so we have to clone the packet
3303                  * extraly for the in-kernel coredump support.
3304                  */
3305                 if (IS_ENABLED(CONFIG_DEV_COREDUMP)) {
3306                         struct sk_buff *skb_cd = skb_clone(skb, GFP_ATOMIC);
3307
3308                         if (skb_cd)
3309                                 btmtk_process_coredump(hdev, skb_cd);
3310                 }
3311
3312                 fallthrough;
3313         case 0x05ff:            /* Firmware debug logging 1 */
3314         case 0x05fe:            /* Firmware debug logging 2 */
3315                 return hci_recv_diag(hdev, skb);
3316         }
3317
3318         return hci_recv_frame(hdev, skb);
3319 }
3320
3321 #ifdef CONFIG_PM
3322 /* Configure an out-of-band gpio as wake-up pin, if specified in device tree */
3323 static int marvell_config_oob_wake(struct hci_dev *hdev)
3324 {
3325         struct sk_buff *skb;
3326         struct btusb_data *data = hci_get_drvdata(hdev);
3327         struct device *dev = &data->udev->dev;
3328         u16 pin, gap, opcode;
3329         int ret;
3330         u8 cmd[5];
3331
3332         /* Move on if no wakeup pin specified */
3333         if (of_property_read_u16(dev->of_node, "marvell,wakeup-pin", &pin) ||
3334             of_property_read_u16(dev->of_node, "marvell,wakeup-gap-ms", &gap))
3335                 return 0;
3336
3337         /* Vendor specific command to configure a GPIO as wake-up pin */
3338         opcode = hci_opcode_pack(0x3F, 0x59);
3339         cmd[0] = opcode & 0xFF;
3340         cmd[1] = opcode >> 8;
3341         cmd[2] = 2; /* length of parameters that follow */
3342         cmd[3] = pin;
3343         cmd[4] = gap; /* time in ms, for which wakeup pin should be asserted */
3344
3345         skb = bt_skb_alloc(sizeof(cmd), GFP_KERNEL);
3346         if (!skb) {
3347                 bt_dev_err(hdev, "%s: No memory", __func__);
3348                 return -ENOMEM;
3349         }
3350
3351         skb_put_data(skb, cmd, sizeof(cmd));
3352         hci_skb_pkt_type(skb) = HCI_COMMAND_PKT;
3353
3354         ret = btusb_send_frame(hdev, skb);
3355         if (ret) {
3356                 bt_dev_err(hdev, "%s: configuration failed", __func__);
3357                 kfree_skb(skb);
3358                 return ret;
3359         }
3360
3361         return 0;
3362 }
3363 #endif
3364
3365 static int btusb_set_bdaddr_marvell(struct hci_dev *hdev,
3366                                     const bdaddr_t *bdaddr)
3367 {
3368         struct sk_buff *skb;
3369         u8 buf[8];
3370         long ret;
3371
3372         buf[0] = 0xfe;
3373         buf[1] = sizeof(bdaddr_t);
3374         memcpy(buf + 2, bdaddr, sizeof(bdaddr_t));
3375
3376         skb = __hci_cmd_sync(hdev, 0xfc22, sizeof(buf), buf, HCI_INIT_TIMEOUT);
3377         if (IS_ERR(skb)) {
3378                 ret = PTR_ERR(skb);
3379                 bt_dev_err(hdev, "changing Marvell device address failed (%ld)",
3380                            ret);
3381                 return ret;
3382         }
3383         kfree_skb(skb);
3384
3385         return 0;
3386 }
3387
3388 static int btusb_set_bdaddr_ath3012(struct hci_dev *hdev,
3389                                     const bdaddr_t *bdaddr)
3390 {
3391         struct sk_buff *skb;
3392         u8 buf[10];
3393         long ret;
3394
3395         buf[0] = 0x01;
3396         buf[1] = 0x01;
3397         buf[2] = 0x00;
3398         buf[3] = sizeof(bdaddr_t);
3399         memcpy(buf + 4, bdaddr, sizeof(bdaddr_t));
3400
3401         skb = __hci_cmd_sync(hdev, 0xfc0b, sizeof(buf), buf, HCI_INIT_TIMEOUT);
3402         if (IS_ERR(skb)) {
3403                 ret = PTR_ERR(skb);
3404                 bt_dev_err(hdev, "Change address command failed (%ld)", ret);
3405                 return ret;
3406         }
3407         kfree_skb(skb);
3408
3409         return 0;
3410 }
3411
3412 static int btusb_set_bdaddr_wcn6855(struct hci_dev *hdev,
3413                                 const bdaddr_t *bdaddr)
3414 {
3415         struct sk_buff *skb;
3416         u8 buf[6];
3417         long ret;
3418
3419         memcpy(buf, bdaddr, sizeof(bdaddr_t));
3420
3421         skb = __hci_cmd_sync_ev(hdev, 0xfc14, sizeof(buf), buf,
3422                                 HCI_EV_CMD_COMPLETE, HCI_INIT_TIMEOUT);
3423         if (IS_ERR(skb)) {
3424                 ret = PTR_ERR(skb);
3425                 bt_dev_err(hdev, "Change address command failed (%ld)", ret);
3426                 return ret;
3427         }
3428         kfree_skb(skb);
3429
3430         return 0;
3431 }
3432
3433 #define QCA_MEMDUMP_ACL_HANDLE 0x2EDD
3434 #define QCA_MEMDUMP_SIZE_MAX  0x100000
3435 #define QCA_MEMDUMP_VSE_CLASS 0x01
3436 #define QCA_MEMDUMP_MSG_TYPE 0x08
3437 #define QCA_MEMDUMP_PKT_SIZE 248
3438 #define QCA_LAST_SEQUENCE_NUM 0xffff
3439
3440 struct qca_dump_hdr {
3441         u8 vse_class;
3442         u8 msg_type;
3443         __le16 seqno;
3444         u8 reserved;
3445         union {
3446                 u8 data[0];
3447                 struct {
3448                         __le32 ram_dump_size;
3449                         u8 data0[0];
3450                 } __packed;
3451         };
3452 } __packed;
3453
3454
3455 static void btusb_dump_hdr_qca(struct hci_dev *hdev, struct sk_buff *skb)
3456 {
3457         char buf[128];
3458         struct btusb_data *btdata = hci_get_drvdata(hdev);
3459
3460         snprintf(buf, sizeof(buf), "Controller Name: 0x%x\n",
3461                         btdata->qca_dump.controller_id);
3462         skb_put_data(skb, buf, strlen(buf));
3463
3464         snprintf(buf, sizeof(buf), "Firmware Version: 0x%x\n",
3465                         btdata->qca_dump.fw_version);
3466         skb_put_data(skb, buf, strlen(buf));
3467
3468         snprintf(buf, sizeof(buf), "Driver: %s\nVendor: qca\n",
3469                         btusb_driver.name);
3470         skb_put_data(skb, buf, strlen(buf));
3471
3472         snprintf(buf, sizeof(buf), "VID: 0x%x\nPID:0x%x\n",
3473                         btdata->qca_dump.id_vendor, btdata->qca_dump.id_product);
3474         skb_put_data(skb, buf, strlen(buf));
3475
3476         snprintf(buf, sizeof(buf), "Lmp Subversion: 0x%x\n",
3477                         hdev->lmp_subver);
3478         skb_put_data(skb, buf, strlen(buf));
3479 }
3480
3481 static void btusb_coredump_qca(struct hci_dev *hdev)
3482 {
3483         static const u8 param[] = { 0x26 };
3484         struct sk_buff *skb;
3485
3486         skb = __hci_cmd_sync(hdev, 0xfc0c, 1, param, HCI_CMD_TIMEOUT);
3487         if (IS_ERR(skb))
3488                 bt_dev_err(hdev, "%s: triggle crash failed (%ld)", __func__, PTR_ERR(skb));
3489         kfree_skb(skb);
3490 }
3491
3492 /*
3493  * ==0: not a dump pkt.
3494  * < 0: fails to handle a dump pkt
3495  * > 0: otherwise.
3496  */
3497 static int handle_dump_pkt_qca(struct hci_dev *hdev, struct sk_buff *skb)
3498 {
3499         int ret = 1;
3500         u8 pkt_type;
3501         u8 *sk_ptr;
3502         unsigned int sk_len;
3503         u16 seqno;
3504         u32 dump_size;
3505
3506         struct hci_event_hdr *event_hdr;
3507         struct hci_acl_hdr *acl_hdr;
3508         struct qca_dump_hdr *dump_hdr;
3509         struct btusb_data *btdata = hci_get_drvdata(hdev);
3510         struct usb_device *udev = btdata->udev;
3511
3512         pkt_type = hci_skb_pkt_type(skb);
3513         sk_ptr = skb->data;
3514         sk_len = skb->len;
3515
3516         if (pkt_type == HCI_ACLDATA_PKT) {
3517                 acl_hdr = hci_acl_hdr(skb);
3518                 if (le16_to_cpu(acl_hdr->handle) != QCA_MEMDUMP_ACL_HANDLE)
3519                         return 0;
3520                 sk_ptr += HCI_ACL_HDR_SIZE;
3521                 sk_len -= HCI_ACL_HDR_SIZE;
3522                 event_hdr = (struct hci_event_hdr *)sk_ptr;
3523         } else {
3524                 event_hdr = hci_event_hdr(skb);
3525         }
3526
3527         if ((event_hdr->evt != HCI_VENDOR_PKT)
3528                 || (event_hdr->plen != (sk_len - HCI_EVENT_HDR_SIZE)))
3529                 return 0;
3530
3531         sk_ptr += HCI_EVENT_HDR_SIZE;
3532         sk_len -= HCI_EVENT_HDR_SIZE;
3533
3534         dump_hdr = (struct qca_dump_hdr *)sk_ptr;
3535         if ((sk_len < offsetof(struct qca_dump_hdr, data))
3536                 || (dump_hdr->vse_class != QCA_MEMDUMP_VSE_CLASS)
3537             || (dump_hdr->msg_type != QCA_MEMDUMP_MSG_TYPE))
3538                 return 0;
3539
3540         /*it is dump pkt now*/
3541         seqno = le16_to_cpu(dump_hdr->seqno);
3542         if (seqno == 0) {
3543                 set_bit(BTUSB_HW_SSR_ACTIVE, &btdata->flags);
3544                 dump_size = le32_to_cpu(dump_hdr->ram_dump_size);
3545                 if (!dump_size || (dump_size > QCA_MEMDUMP_SIZE_MAX)) {
3546                         ret = -EILSEQ;
3547                         bt_dev_err(hdev, "Invalid memdump size(%u)",
3548                                    dump_size);
3549                         goto out;
3550                 }
3551
3552                 ret = hci_devcd_init(hdev, dump_size);
3553                 if (ret < 0) {
3554                         bt_dev_err(hdev, "memdump init error(%d)", ret);
3555                         goto out;
3556                 }
3557
3558                 btdata->qca_dump.ram_dump_size = dump_size;
3559                 btdata->qca_dump.ram_dump_seqno = 0;
3560                 sk_ptr += offsetof(struct qca_dump_hdr, data0);
3561                 sk_len -= offsetof(struct qca_dump_hdr, data0);
3562
3563                 usb_disable_autosuspend(udev);
3564                 bt_dev_info(hdev, "%s memdump size(%u)\n",
3565                             (pkt_type == HCI_ACLDATA_PKT) ? "ACL" : "event",
3566                             dump_size);
3567         } else {
3568                 sk_ptr += offsetof(struct qca_dump_hdr, data);
3569                 sk_len -= offsetof(struct qca_dump_hdr, data);
3570         }
3571
3572         if (!btdata->qca_dump.ram_dump_size) {
3573                 ret = -EINVAL;
3574                 bt_dev_err(hdev, "memdump is not active");
3575                 goto out;
3576         }
3577
3578         if ((seqno > btdata->qca_dump.ram_dump_seqno + 1) && (seqno != QCA_LAST_SEQUENCE_NUM)) {
3579                 dump_size = QCA_MEMDUMP_PKT_SIZE * (seqno - btdata->qca_dump.ram_dump_seqno - 1);
3580                 hci_devcd_append_pattern(hdev, 0x0, dump_size);
3581                 bt_dev_err(hdev,
3582                            "expected memdump seqno(%u) is not received(%u)\n",
3583                            btdata->qca_dump.ram_dump_seqno, seqno);
3584                 btdata->qca_dump.ram_dump_seqno = seqno;
3585                 kfree_skb(skb);
3586                 return ret;
3587         }
3588
3589         skb_pull(skb, skb->len - sk_len);
3590         hci_devcd_append(hdev, skb);
3591         btdata->qca_dump.ram_dump_seqno++;
3592         if (seqno == QCA_LAST_SEQUENCE_NUM) {
3593                 bt_dev_info(hdev,
3594                                 "memdump done: pkts(%u), total(%u)\n",
3595                                 btdata->qca_dump.ram_dump_seqno, btdata->qca_dump.ram_dump_size);
3596
3597                 hci_devcd_complete(hdev);
3598                 goto out;
3599         }
3600         return ret;
3601
3602 out:
3603         if (btdata->qca_dump.ram_dump_size)
3604                 usb_enable_autosuspend(udev);
3605         btdata->qca_dump.ram_dump_size = 0;
3606         btdata->qca_dump.ram_dump_seqno = 0;
3607         clear_bit(BTUSB_HW_SSR_ACTIVE, &btdata->flags);
3608
3609         if (ret < 0)
3610                 kfree_skb(skb);
3611         return ret;
3612 }
3613
3614 static int btusb_recv_acl_qca(struct hci_dev *hdev, struct sk_buff *skb)
3615 {
3616         if (handle_dump_pkt_qca(hdev, skb))
3617                 return 0;
3618         return hci_recv_frame(hdev, skb);
3619 }
3620
3621 static int btusb_recv_evt_qca(struct hci_dev *hdev, struct sk_buff *skb)
3622 {
3623         if (handle_dump_pkt_qca(hdev, skb))
3624                 return 0;
3625         return hci_recv_frame(hdev, skb);
3626 }
3627
3628
3629 #define QCA_DFU_PACKET_LEN      4096
3630
3631 #define QCA_GET_TARGET_VERSION  0x09
3632 #define QCA_CHECK_STATUS        0x05
3633 #define QCA_DFU_DOWNLOAD        0x01
3634
3635 #define QCA_SYSCFG_UPDATED      0x40
3636 #define QCA_PATCH_UPDATED       0x80
3637 #define QCA_DFU_TIMEOUT         3000
3638 #define QCA_FLAG_MULTI_NVM      0x80
3639 #define QCA_BT_RESET_WAIT_MS    100
3640
3641 #define WCN6855_2_0_RAM_VERSION_GF 0x400c1200
3642 #define WCN6855_2_1_RAM_VERSION_GF 0x400c1211
3643
3644 struct qca_version {
3645         __le32  rom_version;
3646         __le32  patch_version;
3647         __le32  ram_version;
3648         __u8    chip_id;
3649         __u8    platform_id;
3650         __le16  flag;
3651         __u8    reserved[4];
3652 } __packed;
3653
3654 struct qca_rampatch_version {
3655         __le16  rom_version_high;
3656         __le16  rom_version_low;
3657         __le16  patch_version;
3658 } __packed;
3659
3660 struct qca_device_info {
3661         u32     rom_version;
3662         u8      rampatch_hdr;   /* length of header in rampatch */
3663         u8      nvm_hdr;        /* length of header in NVM */
3664         u8      ver_offset;     /* offset of version structure in rampatch */
3665 };
3666
3667 static const struct qca_device_info qca_devices_table[] = {
3668         { 0x00000100, 20, 4,  8 }, /* Rome 1.0 */
3669         { 0x00000101, 20, 4,  8 }, /* Rome 1.1 */
3670         { 0x00000200, 28, 4, 16 }, /* Rome 2.0 */
3671         { 0x00000201, 28, 4, 16 }, /* Rome 2.1 */
3672         { 0x00000300, 28, 4, 16 }, /* Rome 3.0 */
3673         { 0x00000302, 28, 4, 16 }, /* Rome 3.2 */
3674         { 0x00130100, 40, 4, 16 }, /* WCN6855 1.0 */
3675         { 0x00130200, 40, 4, 16 }, /* WCN6855 2.0 */
3676         { 0x00130201, 40, 4, 16 }, /* WCN6855 2.1 */
3677         { 0x00190200, 40, 4, 16 }, /* WCN785x 2.0 */
3678 };
3679
3680 static int btusb_qca_send_vendor_req(struct usb_device *udev, u8 request,
3681                                      void *data, u16 size)
3682 {
3683         int pipe, err;
3684         u8 *buf;
3685
3686         buf = kmalloc(size, GFP_KERNEL);
3687         if (!buf)
3688                 return -ENOMEM;
3689
3690         /* Found some of USB hosts have IOT issues with ours so that we should
3691          * not wait until HCI layer is ready.
3692          */
3693         pipe = usb_rcvctrlpipe(udev, 0);
3694         err = usb_control_msg(udev, pipe, request, USB_TYPE_VENDOR | USB_DIR_IN,
3695                               0, 0, buf, size, USB_CTRL_SET_TIMEOUT);
3696         if (err < 0) {
3697                 dev_err(&udev->dev, "Failed to access otp area (%d)", err);
3698                 goto done;
3699         }
3700
3701         memcpy(data, buf, size);
3702
3703 done:
3704         kfree(buf);
3705
3706         return err;
3707 }
3708
3709 static int btusb_setup_qca_download_fw(struct hci_dev *hdev,
3710                                        const struct firmware *firmware,
3711                                        size_t hdr_size)
3712 {
3713         struct btusb_data *btdata = hci_get_drvdata(hdev);
3714         struct usb_device *udev = btdata->udev;
3715         size_t count, size, sent = 0;
3716         int pipe, len, err;
3717         u8 *buf;
3718
3719         buf = kmalloc(QCA_DFU_PACKET_LEN, GFP_KERNEL);
3720         if (!buf)
3721                 return -ENOMEM;
3722
3723         count = firmware->size;
3724
3725         size = min_t(size_t, count, hdr_size);
3726         memcpy(buf, firmware->data, size);
3727
3728         /* USB patches should go down to controller through USB path
3729          * because binary format fits to go down through USB channel.
3730          * USB control path is for patching headers and USB bulk is for
3731          * patch body.
3732          */
3733         pipe = usb_sndctrlpipe(udev, 0);
3734         err = usb_control_msg(udev, pipe, QCA_DFU_DOWNLOAD, USB_TYPE_VENDOR,
3735                               0, 0, buf, size, USB_CTRL_SET_TIMEOUT);
3736         if (err < 0) {
3737                 bt_dev_err(hdev, "Failed to send headers (%d)", err);
3738                 goto done;
3739         }
3740
3741         sent += size;
3742         count -= size;
3743
3744         /* ep2 need time to switch from function acl to function dfu,
3745          * so we add 20ms delay here.
3746          */
3747         msleep(20);
3748
3749         while (count) {
3750                 size = min_t(size_t, count, QCA_DFU_PACKET_LEN);
3751
3752                 memcpy(buf, firmware->data + sent, size);
3753
3754                 pipe = usb_sndbulkpipe(udev, 0x02);
3755                 err = usb_bulk_msg(udev, pipe, buf, size, &len,
3756                                    QCA_DFU_TIMEOUT);
3757                 if (err < 0) {
3758                         bt_dev_err(hdev, "Failed to send body at %zd of %zd (%d)",
3759                                    sent, firmware->size, err);
3760                         break;
3761                 }
3762
3763                 if (size != len) {
3764                         bt_dev_err(hdev, "Failed to get bulk buffer");
3765                         err = -EILSEQ;
3766                         break;
3767                 }
3768
3769                 sent  += size;
3770                 count -= size;
3771         }
3772
3773 done:
3774         kfree(buf);
3775         return err;
3776 }
3777
3778 static int btusb_setup_qca_load_rampatch(struct hci_dev *hdev,
3779                                          struct qca_version *ver,
3780                                          const struct qca_device_info *info)
3781 {
3782         struct qca_rampatch_version *rver;
3783         const struct firmware *fw;
3784         u32 ver_rom, ver_patch, rver_rom;
3785         u16 rver_rom_low, rver_rom_high, rver_patch;
3786         char fwname[64];
3787         int err;
3788
3789         ver_rom = le32_to_cpu(ver->rom_version);
3790         ver_patch = le32_to_cpu(ver->patch_version);
3791
3792         snprintf(fwname, sizeof(fwname), "qca/rampatch_usb_%08x.bin", ver_rom);
3793
3794         err = request_firmware(&fw, fwname, &hdev->dev);
3795         if (err) {
3796                 bt_dev_err(hdev, "failed to request rampatch file: %s (%d)",
3797                            fwname, err);
3798                 return err;
3799         }
3800
3801         bt_dev_info(hdev, "using rampatch file: %s", fwname);
3802
3803         rver = (struct qca_rampatch_version *)(fw->data + info->ver_offset);
3804         rver_rom_low = le16_to_cpu(rver->rom_version_low);
3805         rver_patch = le16_to_cpu(rver->patch_version);
3806
3807         if (ver_rom & ~0xffffU) {
3808                 rver_rom_high = le16_to_cpu(rver->rom_version_high);
3809                 rver_rom = rver_rom_high << 16 | rver_rom_low;
3810         } else {
3811                 rver_rom = rver_rom_low;
3812         }
3813
3814         bt_dev_info(hdev, "QCA: patch rome 0x%x build 0x%x, "
3815                     "firmware rome 0x%x build 0x%x",
3816                     rver_rom, rver_patch, ver_rom, ver_patch);
3817
3818         if (rver_rom != ver_rom || rver_patch <= ver_patch) {
3819                 bt_dev_err(hdev, "rampatch file version did not match with firmware");
3820                 err = -EINVAL;
3821                 goto done;
3822         }
3823
3824         err = btusb_setup_qca_download_fw(hdev, fw, info->rampatch_hdr);
3825
3826 done:
3827         release_firmware(fw);
3828
3829         return err;
3830 }
3831
3832 static void btusb_generate_qca_nvm_name(char *fwname, size_t max_size,
3833                                         const struct qca_version *ver)
3834 {
3835         u32 rom_version = le32_to_cpu(ver->rom_version);
3836         u16 flag = le16_to_cpu(ver->flag);
3837
3838         if (((flag >> 8) & 0xff) == QCA_FLAG_MULTI_NVM) {
3839                 /* The board_id should be split into two bytes
3840                  * The 1st byte is chip ID, and the 2nd byte is platform ID
3841                  * For example, board ID 0x010A, 0x01 is platform ID. 0x0A is chip ID
3842                  * we have several platforms, and platform IDs are continuously added
3843                  * Platform ID:
3844                  * 0x00 is for Mobile
3845                  * 0x01 is for X86
3846                  * 0x02 is for Automotive
3847                  * 0x03 is for Consumer electronic
3848                  */
3849                 u16 board_id = (ver->chip_id << 8) + ver->platform_id;
3850                 const char *variant;
3851
3852                 switch (le32_to_cpu(ver->ram_version)) {
3853                 case WCN6855_2_0_RAM_VERSION_GF:
3854                 case WCN6855_2_1_RAM_VERSION_GF:
3855                         variant = "_gf";
3856                         break;
3857                 default:
3858                         variant = "";
3859                         break;
3860                 }
3861
3862                 if (board_id == 0) {
3863                         snprintf(fwname, max_size, "qca/nvm_usb_%08x%s.bin",
3864                                 rom_version, variant);
3865                 } else {
3866                         snprintf(fwname, max_size, "qca/nvm_usb_%08x%s_%04x.bin",
3867                                 rom_version, variant, board_id);
3868                 }
3869         } else {
3870                 snprintf(fwname, max_size, "qca/nvm_usb_%08x.bin",
3871                         rom_version);
3872         }
3873
3874 }
3875
3876 static int btusb_setup_qca_load_nvm(struct hci_dev *hdev,
3877                                     struct qca_version *ver,
3878                                     const struct qca_device_info *info)
3879 {
3880         const struct firmware *fw;
3881         char fwname[64];
3882         int err;
3883
3884         btusb_generate_qca_nvm_name(fwname, sizeof(fwname), ver);
3885
3886         err = request_firmware(&fw, fwname, &hdev->dev);
3887         if (err) {
3888                 bt_dev_err(hdev, "failed to request NVM file: %s (%d)",
3889                            fwname, err);
3890                 return err;
3891         }
3892
3893         bt_dev_info(hdev, "using NVM file: %s", fwname);
3894
3895         err = btusb_setup_qca_download_fw(hdev, fw, info->nvm_hdr);
3896
3897         release_firmware(fw);
3898
3899         return err;
3900 }
3901
3902 /* identify the ROM version and check whether patches are needed */
3903 static bool btusb_qca_need_patch(struct usb_device *udev)
3904 {
3905         struct qca_version ver;
3906
3907         if (btusb_qca_send_vendor_req(udev, QCA_GET_TARGET_VERSION, &ver,
3908                                       sizeof(ver)) < 0)
3909                 return false;
3910         /* only low ROM versions need patches */
3911         return !(le32_to_cpu(ver.rom_version) & ~0xffffU);
3912 }
3913
3914 static int btusb_setup_qca(struct hci_dev *hdev)
3915 {
3916         struct btusb_data *btdata = hci_get_drvdata(hdev);
3917         struct usb_device *udev = btdata->udev;
3918         const struct qca_device_info *info = NULL;
3919         struct qca_version ver;
3920         u32 ver_rom;
3921         u8 status;
3922         int i, err;
3923
3924         err = btusb_qca_send_vendor_req(udev, QCA_GET_TARGET_VERSION, &ver,
3925                                         sizeof(ver));
3926         if (err < 0)
3927                 return err;
3928
3929         ver_rom = le32_to_cpu(ver.rom_version);
3930
3931         for (i = 0; i < ARRAY_SIZE(qca_devices_table); i++) {
3932                 if (ver_rom == qca_devices_table[i].rom_version)
3933                         info = &qca_devices_table[i];
3934         }
3935         if (!info) {
3936                 /* If the rom_version is not matched in the qca_devices_table
3937                  * and the high ROM version is not zero, we assume this chip no
3938                  * need to load the rampatch and nvm.
3939                  */
3940                 if (ver_rom & ~0xffffU)
3941                         return 0;
3942
3943                 bt_dev_err(hdev, "don't support firmware rome 0x%x", ver_rom);
3944                 return -ENODEV;
3945         }
3946
3947         err = btusb_qca_send_vendor_req(udev, QCA_CHECK_STATUS, &status,
3948                                         sizeof(status));
3949         if (err < 0)
3950                 return err;
3951
3952         if (!(status & QCA_PATCH_UPDATED)) {
3953                 err = btusb_setup_qca_load_rampatch(hdev, &ver, info);
3954                 if (err < 0)
3955                         return err;
3956         }
3957
3958         err = btusb_qca_send_vendor_req(udev, QCA_GET_TARGET_VERSION, &ver,
3959                                         sizeof(ver));
3960         if (err < 0)
3961                 return err;
3962
3963         btdata->qca_dump.fw_version = le32_to_cpu(ver.patch_version);
3964         btdata->qca_dump.controller_id = le32_to_cpu(ver.rom_version);
3965
3966         if (!(status & QCA_SYSCFG_UPDATED)) {
3967                 err = btusb_setup_qca_load_nvm(hdev, &ver, info);
3968                 if (err < 0)
3969                         return err;
3970
3971                 /* WCN6855 2.1 and later will reset to apply firmware downloaded here, so
3972                  * wait ~100ms for reset Done then go ahead, otherwise, it maybe
3973                  * cause potential enable failure.
3974                  */
3975                 if (info->rom_version >= 0x00130201)
3976                         msleep(QCA_BT_RESET_WAIT_MS);
3977         }
3978
3979         /* Mark HCI_OP_ENHANCED_SETUP_SYNC_CONN as broken as it doesn't seem to
3980          * work with the likes of HSP/HFP mSBC.
3981          */
3982         set_bit(HCI_QUIRK_BROKEN_ENHANCED_SETUP_SYNC_CONN, &hdev->quirks);
3983
3984         return 0;
3985 }
3986
3987 static inline int __set_diag_interface(struct hci_dev *hdev)
3988 {
3989         struct btusb_data *data = hci_get_drvdata(hdev);
3990         struct usb_interface *intf = data->diag;
3991         int i;
3992
3993         if (!data->diag)
3994                 return -ENODEV;
3995
3996         data->diag_tx_ep = NULL;
3997         data->diag_rx_ep = NULL;
3998
3999         for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
4000                 struct usb_endpoint_descriptor *ep_desc;
4001
4002                 ep_desc = &intf->cur_altsetting->endpoint[i].desc;
4003
4004                 if (!data->diag_tx_ep && usb_endpoint_is_bulk_out(ep_desc)) {
4005                         data->diag_tx_ep = ep_desc;
4006                         continue;
4007                 }
4008
4009                 if (!data->diag_rx_ep && usb_endpoint_is_bulk_in(ep_desc)) {
4010                         data->diag_rx_ep = ep_desc;
4011                         continue;
4012                 }
4013         }
4014
4015         if (!data->diag_tx_ep || !data->diag_rx_ep) {
4016                 bt_dev_err(hdev, "invalid diagnostic descriptors");
4017                 return -ENODEV;
4018         }
4019
4020         return 0;
4021 }
4022
4023 static struct urb *alloc_diag_urb(struct hci_dev *hdev, bool enable)
4024 {
4025         struct btusb_data *data = hci_get_drvdata(hdev);
4026         struct sk_buff *skb;
4027         struct urb *urb;
4028         unsigned int pipe;
4029
4030         if (!data->diag_tx_ep)
4031                 return ERR_PTR(-ENODEV);
4032
4033         urb = usb_alloc_urb(0, GFP_KERNEL);
4034         if (!urb)
4035                 return ERR_PTR(-ENOMEM);
4036
4037         skb = bt_skb_alloc(2, GFP_KERNEL);
4038         if (!skb) {
4039                 usb_free_urb(urb);
4040                 return ERR_PTR(-ENOMEM);
4041         }
4042
4043         skb_put_u8(skb, 0xf0);
4044         skb_put_u8(skb, enable);
4045
4046         pipe = usb_sndbulkpipe(data->udev, data->diag_tx_ep->bEndpointAddress);
4047
4048         usb_fill_bulk_urb(urb, data->udev, pipe,
4049                           skb->data, skb->len, btusb_tx_complete, skb);
4050
4051         skb->dev = (void *)hdev;
4052
4053         return urb;
4054 }
4055
4056 static int btusb_bcm_set_diag(struct hci_dev *hdev, bool enable)
4057 {
4058         struct btusb_data *data = hci_get_drvdata(hdev);
4059         struct urb *urb;
4060
4061         if (!data->diag)
4062                 return -ENODEV;
4063
4064         if (!test_bit(HCI_RUNNING, &hdev->flags))
4065                 return -ENETDOWN;
4066
4067         urb = alloc_diag_urb(hdev, enable);
4068         if (IS_ERR(urb))
4069                 return PTR_ERR(urb);
4070
4071         return submit_or_queue_tx_urb(hdev, urb);
4072 }
4073
4074 #ifdef CONFIG_PM
4075 static irqreturn_t btusb_oob_wake_handler(int irq, void *priv)
4076 {
4077         struct btusb_data *data = priv;
4078
4079         pm_wakeup_event(&data->udev->dev, 0);
4080         pm_system_wakeup();
4081
4082         /* Disable only if not already disabled (keep it balanced) */
4083         if (test_and_clear_bit(BTUSB_OOB_WAKE_ENABLED, &data->flags)) {
4084                 disable_irq_nosync(irq);
4085                 disable_irq_wake(irq);
4086         }
4087         return IRQ_HANDLED;
4088 }
4089
4090 static const struct of_device_id btusb_match_table[] = {
4091         { .compatible = "usb1286,204e" },
4092         { .compatible = "usbcf3,e300" }, /* QCA6174A */
4093         { .compatible = "usb4ca,301a" }, /* QCA6174A (Lite-On) */
4094         { }
4095 };
4096 MODULE_DEVICE_TABLE(of, btusb_match_table);
4097
4098 /* Use an oob wakeup pin? */
4099 static int btusb_config_oob_wake(struct hci_dev *hdev)
4100 {
4101         struct btusb_data *data = hci_get_drvdata(hdev);
4102         struct device *dev = &data->udev->dev;
4103         int irq, ret;
4104
4105         clear_bit(BTUSB_OOB_WAKE_ENABLED, &data->flags);
4106
4107         if (!of_match_device(btusb_match_table, dev))
4108                 return 0;
4109
4110         /* Move on if no IRQ specified */
4111         irq = of_irq_get_byname(dev->of_node, "wakeup");
4112         if (irq <= 0) {
4113                 bt_dev_dbg(hdev, "%s: no OOB Wakeup IRQ in DT", __func__);
4114                 return 0;
4115         }
4116
4117         irq_set_status_flags(irq, IRQ_NOAUTOEN);
4118         ret = devm_request_irq(&hdev->dev, irq, btusb_oob_wake_handler,
4119                                0, "OOB Wake-on-BT", data);
4120         if (ret) {
4121                 bt_dev_err(hdev, "%s: IRQ request failed", __func__);
4122                 return ret;
4123         }
4124
4125         ret = device_init_wakeup(dev, true);
4126         if (ret) {
4127                 bt_dev_err(hdev, "%s: failed to init_wakeup", __func__);
4128                 return ret;
4129         }
4130
4131         data->oob_wake_irq = irq;
4132         bt_dev_info(hdev, "OOB Wake-on-BT configured at IRQ %u", irq);
4133         return 0;
4134 }
4135 #endif
4136
4137 static void btusb_check_needs_reset_resume(struct usb_interface *intf)
4138 {
4139         if (dmi_check_system(btusb_needs_reset_resume_table))
4140                 interface_to_usbdev(intf)->quirks |= USB_QUIRK_RESET_RESUME;
4141 }
4142
4143 static bool btusb_wakeup(struct hci_dev *hdev)
4144 {
4145         struct btusb_data *data = hci_get_drvdata(hdev);
4146
4147         return device_may_wakeup(&data->udev->dev);
4148 }
4149
4150 static int btusb_shutdown_qca(struct hci_dev *hdev)
4151 {
4152         struct sk_buff *skb;
4153
4154         skb = __hci_cmd_sync(hdev, HCI_OP_RESET, 0, NULL, HCI_INIT_TIMEOUT);
4155         if (IS_ERR(skb)) {
4156                 bt_dev_err(hdev, "HCI reset during shutdown failed");
4157                 return PTR_ERR(skb);
4158         }
4159         kfree_skb(skb);
4160
4161         return 0;
4162 }
4163
4164 static ssize_t force_poll_sync_read(struct file *file, char __user *user_buf,
4165                                     size_t count, loff_t *ppos)
4166 {
4167         struct btusb_data *data = file->private_data;
4168         char buf[3];
4169
4170         buf[0] = data->poll_sync ? 'Y' : 'N';
4171         buf[1] = '\n';
4172         buf[2] = '\0';
4173         return simple_read_from_buffer(user_buf, count, ppos, buf, 2);
4174 }
4175
4176 static ssize_t force_poll_sync_write(struct file *file,
4177                                      const char __user *user_buf,
4178                                      size_t count, loff_t *ppos)
4179 {
4180         struct btusb_data *data = file->private_data;
4181         bool enable;
4182         int err;
4183
4184         err = kstrtobool_from_user(user_buf, count, &enable);
4185         if (err)
4186                 return err;
4187
4188         /* Only allow changes while the adapter is down */
4189         if (test_bit(HCI_UP, &data->hdev->flags))
4190                 return -EPERM;
4191
4192         if (data->poll_sync == enable)
4193                 return -EALREADY;
4194
4195         data->poll_sync = enable;
4196
4197         return count;
4198 }
4199
4200 static const struct file_operations force_poll_sync_fops = {
4201         .open           = simple_open,
4202         .read           = force_poll_sync_read,
4203         .write          = force_poll_sync_write,
4204         .llseek         = default_llseek,
4205 };
4206
4207 static int btusb_probe(struct usb_interface *intf,
4208                        const struct usb_device_id *id)
4209 {
4210         struct usb_endpoint_descriptor *ep_desc;
4211         struct gpio_desc *reset_gpio;
4212         struct btusb_data *data;
4213         struct hci_dev *hdev;
4214         unsigned ifnum_base;
4215         int i, err, priv_size;
4216
4217         BT_DBG("intf %p id %p", intf, id);
4218
4219         if ((id->driver_info & BTUSB_IFNUM_2) &&
4220             (intf->cur_altsetting->desc.bInterfaceNumber != 0) &&
4221             (intf->cur_altsetting->desc.bInterfaceNumber != 2))
4222                 return -ENODEV;
4223
4224         ifnum_base = intf->cur_altsetting->desc.bInterfaceNumber;
4225
4226         if (!id->driver_info) {
4227                 const struct usb_device_id *match;
4228
4229                 match = usb_match_id(intf, quirks_table);
4230                 if (match)
4231                         id = match;
4232         }
4233
4234         if (id->driver_info == BTUSB_IGNORE)
4235                 return -ENODEV;
4236
4237         if (id->driver_info & BTUSB_ATH3012) {
4238                 struct usb_device *udev = interface_to_usbdev(intf);
4239
4240                 /* Old firmware would otherwise let ath3k driver load
4241                  * patch and sysconfig files
4242                  */
4243                 if (le16_to_cpu(udev->descriptor.bcdDevice) <= 0x0001 &&
4244                     !btusb_qca_need_patch(udev))
4245                         return -ENODEV;
4246         }
4247
4248         data = devm_kzalloc(&intf->dev, sizeof(*data), GFP_KERNEL);
4249         if (!data)
4250                 return -ENOMEM;
4251
4252         for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
4253                 ep_desc = &intf->cur_altsetting->endpoint[i].desc;
4254
4255                 if (!data->intr_ep && usb_endpoint_is_int_in(ep_desc)) {
4256                         data->intr_ep = ep_desc;
4257                         continue;
4258                 }
4259
4260                 if (!data->bulk_tx_ep && usb_endpoint_is_bulk_out(ep_desc)) {
4261                         data->bulk_tx_ep = ep_desc;
4262                         continue;
4263                 }
4264
4265                 if (!data->bulk_rx_ep && usb_endpoint_is_bulk_in(ep_desc)) {
4266                         data->bulk_rx_ep = ep_desc;
4267                         continue;
4268                 }
4269         }
4270
4271         if (!data->intr_ep || !data->bulk_tx_ep || !data->bulk_rx_ep)
4272                 return -ENODEV;
4273
4274         if (id->driver_info & BTUSB_AMP) {
4275                 data->cmdreq_type = USB_TYPE_CLASS | 0x01;
4276                 data->cmdreq = 0x2b;
4277         } else {
4278                 data->cmdreq_type = USB_TYPE_CLASS;
4279                 data->cmdreq = 0x00;
4280         }
4281
4282         data->udev = interface_to_usbdev(intf);
4283         data->intf = intf;
4284
4285         INIT_WORK(&data->work, btusb_work);
4286         INIT_WORK(&data->waker, btusb_waker);
4287         INIT_DELAYED_WORK(&data->rx_work, btusb_rx_work);
4288
4289         skb_queue_head_init(&data->acl_q);
4290
4291         init_usb_anchor(&data->deferred);
4292         init_usb_anchor(&data->tx_anchor);
4293         spin_lock_init(&data->txlock);
4294
4295         init_usb_anchor(&data->intr_anchor);
4296         init_usb_anchor(&data->bulk_anchor);
4297         init_usb_anchor(&data->isoc_anchor);
4298         init_usb_anchor(&data->diag_anchor);
4299         init_usb_anchor(&data->ctrl_anchor);
4300         spin_lock_init(&data->rxlock);
4301
4302         priv_size = 0;
4303
4304         data->recv_event = hci_recv_frame;
4305         data->recv_bulk = btusb_recv_bulk;
4306
4307         if (id->driver_info & BTUSB_INTEL_COMBINED) {
4308                 /* Allocate extra space for Intel device */
4309                 priv_size += sizeof(struct btintel_data);
4310
4311                 /* Override the rx handlers */
4312                 data->recv_event = btintel_recv_event;
4313                 data->recv_bulk = btusb_recv_bulk_intel;
4314         } else if (id->driver_info & BTUSB_REALTEK) {
4315                 /* Allocate extra space for Realtek device */
4316                 priv_size += sizeof(struct btrealtek_data);
4317
4318                 data->recv_event = btusb_recv_event_realtek;
4319         } else if (id->driver_info & BTUSB_MEDIATEK) {
4320                 /* Allocate extra space for Mediatek device */
4321                 priv_size += sizeof(struct btmediatek_data);
4322         }
4323
4324         data->recv_acl = hci_recv_frame;
4325
4326         hdev = hci_alloc_dev_priv(priv_size);
4327         if (!hdev)
4328                 return -ENOMEM;
4329
4330         hdev->bus = HCI_USB;
4331         hci_set_drvdata(hdev, data);
4332
4333         if (id->driver_info & BTUSB_AMP)
4334                 hdev->dev_type = HCI_AMP;
4335         else
4336                 hdev->dev_type = HCI_PRIMARY;
4337
4338         data->hdev = hdev;
4339
4340         SET_HCIDEV_DEV(hdev, &intf->dev);
4341
4342         reset_gpio = gpiod_get_optional(&data->udev->dev, "reset",
4343                                         GPIOD_OUT_LOW);
4344         if (IS_ERR(reset_gpio)) {
4345                 err = PTR_ERR(reset_gpio);
4346                 goto out_free_dev;
4347         } else if (reset_gpio) {
4348                 data->reset_gpio = reset_gpio;
4349         }
4350
4351         hdev->open   = btusb_open;
4352         hdev->close  = btusb_close;
4353         hdev->flush  = btusb_flush;
4354         hdev->send   = btusb_send_frame;
4355         hdev->notify = btusb_notify;
4356         hdev->wakeup = btusb_wakeup;
4357
4358 #ifdef CONFIG_PM
4359         err = btusb_config_oob_wake(hdev);
4360         if (err)
4361                 goto out_free_dev;
4362
4363         /* Marvell devices may need a specific chip configuration */
4364         if (id->driver_info & BTUSB_MARVELL && data->oob_wake_irq) {
4365                 err = marvell_config_oob_wake(hdev);
4366                 if (err)
4367                         goto out_free_dev;
4368         }
4369 #endif
4370         if (id->driver_info & BTUSB_CW6622)
4371                 set_bit(HCI_QUIRK_BROKEN_STORED_LINK_KEY, &hdev->quirks);
4372
4373         if (id->driver_info & BTUSB_BCM2045)
4374                 set_bit(HCI_QUIRK_BROKEN_STORED_LINK_KEY, &hdev->quirks);
4375
4376         if (id->driver_info & BTUSB_BCM92035)
4377                 hdev->setup = btusb_setup_bcm92035;
4378
4379         if (IS_ENABLED(CONFIG_BT_HCIBTUSB_BCM) &&
4380             (id->driver_info & BTUSB_BCM_PATCHRAM)) {
4381                 hdev->manufacturer = 15;
4382                 hdev->setup = btbcm_setup_patchram;
4383                 hdev->set_diag = btusb_bcm_set_diag;
4384                 hdev->set_bdaddr = btbcm_set_bdaddr;
4385
4386                 /* Broadcom LM_DIAG Interface numbers are hardcoded */
4387                 data->diag = usb_ifnum_to_if(data->udev, ifnum_base + 2);
4388         }
4389
4390         if (IS_ENABLED(CONFIG_BT_HCIBTUSB_BCM) &&
4391             (id->driver_info & BTUSB_BCM_APPLE)) {
4392                 hdev->manufacturer = 15;
4393                 hdev->setup = btbcm_setup_apple;
4394                 hdev->set_diag = btusb_bcm_set_diag;
4395
4396                 /* Broadcom LM_DIAG Interface numbers are hardcoded */
4397                 data->diag = usb_ifnum_to_if(data->udev, ifnum_base + 2);
4398         }
4399
4400         /* Combined Intel Device setup to support multiple setup routine */
4401         if (id->driver_info & BTUSB_INTEL_COMBINED) {
4402                 err = btintel_configure_setup(hdev, btusb_driver.name);
4403                 if (err)
4404                         goto out_free_dev;
4405
4406                 /* Transport specific configuration */
4407                 hdev->send = btusb_send_frame_intel;
4408                 hdev->cmd_timeout = btusb_intel_cmd_timeout;
4409
4410                 if (id->driver_info & BTUSB_INTEL_NO_WBS_SUPPORT)
4411                         btintel_set_flag(hdev, INTEL_ROM_LEGACY_NO_WBS_SUPPORT);
4412
4413                 if (id->driver_info & BTUSB_INTEL_BROKEN_INITIAL_NCMD)
4414                         btintel_set_flag(hdev, INTEL_BROKEN_INITIAL_NCMD);
4415
4416                 if (id->driver_info & BTUSB_INTEL_BROKEN_SHUTDOWN_LED)
4417                         btintel_set_flag(hdev, INTEL_BROKEN_SHUTDOWN_LED);
4418         }
4419
4420         if (id->driver_info & BTUSB_MARVELL)
4421                 hdev->set_bdaddr = btusb_set_bdaddr_marvell;
4422
4423         if (IS_ENABLED(CONFIG_BT_HCIBTUSB_MTK) &&
4424             (id->driver_info & BTUSB_MEDIATEK)) {
4425                 hdev->setup = btusb_mtk_setup;
4426                 hdev->shutdown = btusb_mtk_shutdown;
4427                 hdev->manufacturer = 70;
4428                 hdev->cmd_timeout = btmtk_reset_sync;
4429                 hdev->set_bdaddr = btmtk_set_bdaddr;
4430                 set_bit(HCI_QUIRK_BROKEN_ENHANCED_SETUP_SYNC_CONN, &hdev->quirks);
4431                 set_bit(HCI_QUIRK_NON_PERSISTENT_SETUP, &hdev->quirks);
4432                 data->recv_acl = btusb_recv_acl_mtk;
4433         }
4434
4435         if (id->driver_info & BTUSB_SWAVE) {
4436                 set_bit(HCI_QUIRK_FIXUP_INQUIRY_MODE, &hdev->quirks);
4437                 set_bit(HCI_QUIRK_BROKEN_LOCAL_COMMANDS, &hdev->quirks);
4438         }
4439
4440         if (id->driver_info & BTUSB_INTEL_BOOT) {
4441                 hdev->manufacturer = 2;
4442                 set_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks);
4443         }
4444
4445         if (id->driver_info & BTUSB_ATH3012) {
4446                 data->setup_on_usb = btusb_setup_qca;
4447                 hdev->set_bdaddr = btusb_set_bdaddr_ath3012;
4448                 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks);
4449                 set_bit(HCI_QUIRK_STRICT_DUPLICATE_FILTER, &hdev->quirks);
4450         }
4451
4452         if (id->driver_info & BTUSB_QCA_ROME) {
4453                 data->setup_on_usb = btusb_setup_qca;
4454                 hdev->shutdown = btusb_shutdown_qca;
4455                 hdev->set_bdaddr = btusb_set_bdaddr_ath3012;
4456                 hdev->cmd_timeout = btusb_qca_cmd_timeout;
4457                 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks);
4458                 btusb_check_needs_reset_resume(intf);
4459         }
4460
4461         if (id->driver_info & BTUSB_QCA_WCN6855) {
4462                 data->qca_dump.id_vendor = id->idVendor;
4463                 data->qca_dump.id_product = id->idProduct;
4464                 data->recv_event = btusb_recv_evt_qca;
4465                 data->recv_acl = btusb_recv_acl_qca;
4466                 hci_devcd_register(hdev, btusb_coredump_qca, btusb_dump_hdr_qca, NULL);
4467                 data->setup_on_usb = btusb_setup_qca;
4468                 hdev->shutdown = btusb_shutdown_qca;
4469                 hdev->set_bdaddr = btusb_set_bdaddr_wcn6855;
4470                 hdev->cmd_timeout = btusb_qca_cmd_timeout;
4471                 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks);
4472                 hci_set_msft_opcode(hdev, 0xFD70);
4473         }
4474
4475         if (id->driver_info & BTUSB_AMP) {
4476                 /* AMP controllers do not support SCO packets */
4477                 data->isoc = NULL;
4478         } else {
4479                 /* Interface orders are hardcoded in the specification */
4480                 data->isoc = usb_ifnum_to_if(data->udev, ifnum_base + 1);
4481                 data->isoc_ifnum = ifnum_base + 1;
4482         }
4483
4484         if (IS_ENABLED(CONFIG_BT_HCIBTUSB_RTL) &&
4485             (id->driver_info & BTUSB_REALTEK)) {
4486                 btrtl_set_driver_name(hdev, btusb_driver.name);
4487                 hdev->setup = btusb_setup_realtek;
4488                 hdev->shutdown = btrtl_shutdown_realtek;
4489                 hdev->cmd_timeout = btusb_rtl_cmd_timeout;
4490                 hdev->hw_error = btusb_rtl_hw_error;
4491
4492                 /* Realtek devices need to set remote wakeup on auto-suspend */
4493                 set_bit(BTUSB_WAKEUP_AUTOSUSPEND, &data->flags);
4494                 set_bit(BTUSB_USE_ALT3_FOR_WBS, &data->flags);
4495         }
4496
4497         if (id->driver_info & BTUSB_ACTIONS_SEMI) {
4498                 /* Support is advertised, but not implemented */
4499                 set_bit(HCI_QUIRK_BROKEN_ERR_DATA_REPORTING, &hdev->quirks);
4500                 set_bit(HCI_QUIRK_BROKEN_READ_TRANSMIT_POWER, &hdev->quirks);
4501                 set_bit(HCI_QUIRK_BROKEN_SET_RPA_TIMEOUT, &hdev->quirks);
4502                 set_bit(HCI_QUIRK_BROKEN_EXT_SCAN, &hdev->quirks);
4503                 set_bit(HCI_QUIRK_BROKEN_READ_ENC_KEY_SIZE, &hdev->quirks);
4504         }
4505
4506         if (!reset)
4507                 set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
4508
4509         if (force_scofix || id->driver_info & BTUSB_WRONG_SCO_MTU) {
4510                 if (!disable_scofix)
4511                         set_bit(HCI_QUIRK_FIXUP_BUFFER_SIZE, &hdev->quirks);
4512         }
4513
4514         if (id->driver_info & BTUSB_BROKEN_ISOC)
4515                 data->isoc = NULL;
4516
4517         if (id->driver_info & BTUSB_WIDEBAND_SPEECH)
4518                 set_bit(HCI_QUIRK_WIDEBAND_SPEECH_SUPPORTED, &hdev->quirks);
4519
4520         if (id->driver_info & BTUSB_VALID_LE_STATES)
4521                 set_bit(HCI_QUIRK_VALID_LE_STATES, &hdev->quirks);
4522
4523         if (id->driver_info & BTUSB_DIGIANSWER) {
4524                 data->cmdreq_type = USB_TYPE_VENDOR;
4525                 set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
4526         }
4527
4528         if (id->driver_info & BTUSB_CSR) {
4529                 struct usb_device *udev = data->udev;
4530                 u16 bcdDevice = le16_to_cpu(udev->descriptor.bcdDevice);
4531
4532                 /* Old firmware would otherwise execute USB reset */
4533                 if (bcdDevice < 0x117)
4534                         set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
4535
4536                 /* This must be set first in case we disable it for fakes */
4537                 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks);
4538
4539                 /* Fake CSR devices with broken commands */
4540                 if (le16_to_cpu(udev->descriptor.idVendor)  == 0x0a12 &&
4541                     le16_to_cpu(udev->descriptor.idProduct) == 0x0001)
4542                         hdev->setup = btusb_setup_csr;
4543         }
4544
4545         if (id->driver_info & BTUSB_SNIFFER) {
4546                 struct usb_device *udev = data->udev;
4547
4548                 /* New sniffer firmware has crippled HCI interface */
4549                 if (le16_to_cpu(udev->descriptor.bcdDevice) > 0x997)
4550                         set_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks);
4551         }
4552
4553         if (id->driver_info & BTUSB_INTEL_BOOT) {
4554                 /* A bug in the bootloader causes that interrupt interface is
4555                  * only enabled after receiving SetInterface(0, AltSetting=0).
4556                  */
4557                 err = usb_set_interface(data->udev, 0, 0);
4558                 if (err < 0) {
4559                         BT_ERR("failed to set interface 0, alt 0 %d", err);
4560                         goto out_free_dev;
4561                 }
4562         }
4563
4564         if (data->isoc) {
4565                 err = usb_driver_claim_interface(&btusb_driver,
4566                                                  data->isoc, data);
4567                 if (err < 0)
4568                         goto out_free_dev;
4569         }
4570
4571         if (IS_ENABLED(CONFIG_BT_HCIBTUSB_BCM) && data->diag) {
4572                 if (!usb_driver_claim_interface(&btusb_driver,
4573                                                 data->diag, data))
4574                         __set_diag_interface(hdev);
4575                 else
4576                         data->diag = NULL;
4577         }
4578
4579         if (enable_autosuspend)
4580                 usb_enable_autosuspend(data->udev);
4581
4582         data->poll_sync = enable_poll_sync;
4583
4584         err = hci_register_dev(hdev);
4585         if (err < 0)
4586                 goto out_free_dev;
4587
4588         usb_set_intfdata(intf, data);
4589
4590         debugfs_create_file("force_poll_sync", 0644, hdev->debugfs, data,
4591                             &force_poll_sync_fops);
4592
4593         return 0;
4594
4595 out_free_dev:
4596         if (data->reset_gpio)
4597                 gpiod_put(data->reset_gpio);
4598         hci_free_dev(hdev);
4599         return err;
4600 }
4601
4602 static void btusb_disconnect(struct usb_interface *intf)
4603 {
4604         struct btusb_data *data = usb_get_intfdata(intf);
4605         struct hci_dev *hdev;
4606
4607         BT_DBG("intf %p", intf);
4608
4609         if (!data)
4610                 return;
4611
4612         hdev = data->hdev;
4613         usb_set_intfdata(data->intf, NULL);
4614
4615         if (data->isoc)
4616                 usb_set_intfdata(data->isoc, NULL);
4617
4618         if (data->diag)
4619                 usb_set_intfdata(data->diag, NULL);
4620
4621         hci_unregister_dev(hdev);
4622
4623         if (intf == data->intf) {
4624                 if (data->isoc)
4625                         usb_driver_release_interface(&btusb_driver, data->isoc);
4626                 if (data->diag)
4627                         usb_driver_release_interface(&btusb_driver, data->diag);
4628         } else if (intf == data->isoc) {
4629                 if (data->diag)
4630                         usb_driver_release_interface(&btusb_driver, data->diag);
4631                 usb_driver_release_interface(&btusb_driver, data->intf);
4632         } else if (intf == data->diag) {
4633                 usb_driver_release_interface(&btusb_driver, data->intf);
4634                 if (data->isoc)
4635                         usb_driver_release_interface(&btusb_driver, data->isoc);
4636         }
4637
4638         if (data->oob_wake_irq)
4639                 device_init_wakeup(&data->udev->dev, false);
4640
4641         if (data->reset_gpio)
4642                 gpiod_put(data->reset_gpio);
4643
4644         hci_free_dev(hdev);
4645 }
4646
4647 #ifdef CONFIG_PM
4648 static int btusb_suspend(struct usb_interface *intf, pm_message_t message)
4649 {
4650         struct btusb_data *data = usb_get_intfdata(intf);
4651
4652         BT_DBG("intf %p", intf);
4653
4654         /* Don't suspend if there are connections */
4655         if (hci_conn_count(data->hdev))
4656                 return -EBUSY;
4657
4658         if (data->suspend_count++)
4659                 return 0;
4660
4661         spin_lock_irq(&data->txlock);
4662         if (!(PMSG_IS_AUTO(message) && data->tx_in_flight)) {
4663                 set_bit(BTUSB_SUSPENDING, &data->flags);
4664                 spin_unlock_irq(&data->txlock);
4665         } else {
4666                 spin_unlock_irq(&data->txlock);
4667                 data->suspend_count--;
4668                 return -EBUSY;
4669         }
4670
4671         cancel_work_sync(&data->work);
4672
4673         btusb_stop_traffic(data);
4674         usb_kill_anchored_urbs(&data->tx_anchor);
4675
4676         if (data->oob_wake_irq && device_may_wakeup(&data->udev->dev)) {
4677                 set_bit(BTUSB_OOB_WAKE_ENABLED, &data->flags);
4678                 enable_irq_wake(data->oob_wake_irq);
4679                 enable_irq(data->oob_wake_irq);
4680         }
4681
4682         /* For global suspend, Realtek devices lose the loaded fw
4683          * in them. But for autosuspend, firmware should remain.
4684          * Actually, it depends on whether the usb host sends
4685          * set feature (enable wakeup) or not.
4686          */
4687         if (test_bit(BTUSB_WAKEUP_AUTOSUSPEND, &data->flags)) {
4688                 if (PMSG_IS_AUTO(message) &&
4689                     device_can_wakeup(&data->udev->dev))
4690                         data->udev->do_remote_wakeup = 1;
4691                 else if (!PMSG_IS_AUTO(message) &&
4692                          !device_may_wakeup(&data->udev->dev)) {
4693                         data->udev->do_remote_wakeup = 0;
4694                         data->udev->reset_resume = 1;
4695                 }
4696         }
4697
4698         return 0;
4699 }
4700
4701 static void play_deferred(struct btusb_data *data)
4702 {
4703         struct urb *urb;
4704         int err;
4705
4706         while ((urb = usb_get_from_anchor(&data->deferred))) {
4707                 usb_anchor_urb(urb, &data->tx_anchor);
4708
4709                 err = usb_submit_urb(urb, GFP_ATOMIC);
4710                 if (err < 0) {
4711                         if (err != -EPERM && err != -ENODEV)
4712                                 BT_ERR("%s urb %p submission failed (%d)",
4713                                        data->hdev->name, urb, -err);
4714                         kfree(urb->setup_packet);
4715                         usb_unanchor_urb(urb);
4716                         usb_free_urb(urb);
4717                         break;
4718                 }
4719
4720                 data->tx_in_flight++;
4721                 usb_free_urb(urb);
4722         }
4723
4724         /* Cleanup the rest deferred urbs. */
4725         while ((urb = usb_get_from_anchor(&data->deferred))) {
4726                 kfree(urb->setup_packet);
4727                 usb_free_urb(urb);
4728         }
4729 }
4730
4731 static int btusb_resume(struct usb_interface *intf)
4732 {
4733         struct btusb_data *data = usb_get_intfdata(intf);
4734         struct hci_dev *hdev = data->hdev;
4735         int err = 0;
4736
4737         BT_DBG("intf %p", intf);
4738
4739         if (--data->suspend_count)
4740                 return 0;
4741
4742         /* Disable only if not already disabled (keep it balanced) */
4743         if (test_and_clear_bit(BTUSB_OOB_WAKE_ENABLED, &data->flags)) {
4744                 disable_irq(data->oob_wake_irq);
4745                 disable_irq_wake(data->oob_wake_irq);
4746         }
4747
4748         if (!test_bit(HCI_RUNNING, &hdev->flags))
4749                 goto done;
4750
4751         if (test_bit(BTUSB_INTR_RUNNING, &data->flags)) {
4752                 err = btusb_submit_intr_urb(hdev, GFP_NOIO);
4753                 if (err < 0) {
4754                         clear_bit(BTUSB_INTR_RUNNING, &data->flags);
4755                         goto failed;
4756                 }
4757         }
4758
4759         if (test_bit(BTUSB_BULK_RUNNING, &data->flags)) {
4760                 err = btusb_submit_bulk_urb(hdev, GFP_NOIO);
4761                 if (err < 0) {
4762                         clear_bit(BTUSB_BULK_RUNNING, &data->flags);
4763                         goto failed;
4764                 }
4765
4766                 btusb_submit_bulk_urb(hdev, GFP_NOIO);
4767         }
4768
4769         if (test_bit(BTUSB_ISOC_RUNNING, &data->flags)) {
4770                 if (btusb_submit_isoc_urb(hdev, GFP_NOIO) < 0)
4771                         clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
4772                 else
4773                         btusb_submit_isoc_urb(hdev, GFP_NOIO);
4774         }
4775
4776         spin_lock_irq(&data->txlock);
4777         play_deferred(data);
4778         clear_bit(BTUSB_SUSPENDING, &data->flags);
4779         spin_unlock_irq(&data->txlock);
4780         schedule_work(&data->work);
4781
4782         return 0;
4783
4784 failed:
4785         usb_scuttle_anchored_urbs(&data->deferred);
4786 done:
4787         spin_lock_irq(&data->txlock);
4788         clear_bit(BTUSB_SUSPENDING, &data->flags);
4789         spin_unlock_irq(&data->txlock);
4790
4791         return err;
4792 }
4793 #endif
4794
4795 #ifdef CONFIG_DEV_COREDUMP
4796 static void btusb_coredump(struct device *dev)
4797 {
4798         struct btusb_data *data = dev_get_drvdata(dev);
4799         struct hci_dev *hdev = data->hdev;
4800
4801         if (hdev->dump.coredump)
4802                 hdev->dump.coredump(hdev);
4803 }
4804 #endif
4805
4806 static struct usb_driver btusb_driver = {
4807         .name           = "btusb",
4808         .probe          = btusb_probe,
4809         .disconnect     = btusb_disconnect,
4810 #ifdef CONFIG_PM
4811         .suspend        = btusb_suspend,
4812         .resume         = btusb_resume,
4813 #endif
4814         .id_table       = btusb_table,
4815         .supports_autosuspend = 1,
4816         .disable_hub_initiated_lpm = 1,
4817
4818 #ifdef CONFIG_DEV_COREDUMP
4819         .driver = {
4820                 .coredump = btusb_coredump,
4821         },
4822 #endif
4823 };
4824
4825 module_usb_driver(btusb_driver);
4826
4827 module_param(disable_scofix, bool, 0644);
4828 MODULE_PARM_DESC(disable_scofix, "Disable fixup of wrong SCO buffer size");
4829
4830 module_param(force_scofix, bool, 0644);
4831 MODULE_PARM_DESC(force_scofix, "Force fixup of wrong SCO buffers size");
4832
4833 module_param(enable_autosuspend, bool, 0644);
4834 MODULE_PARM_DESC(enable_autosuspend, "Enable USB autosuspend by default");
4835
4836 module_param(reset, bool, 0644);
4837 MODULE_PARM_DESC(reset, "Send HCI reset command on initialization");
4838
4839 MODULE_AUTHOR("Marcel Holtmann <marcel@holtmann.org>");
4840 MODULE_DESCRIPTION("Generic Bluetooth USB driver ver " VERSION);
4841 MODULE_VERSION(VERSION);
4842 MODULE_LICENSE("GPL");