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 blacklist_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, 0x07da), .driver_info = BTUSB_CSR },
 481         { USB_DEVICE(0x8087, 0x07dc), .driver_info = BTUSB_INTEL_COMBINED |
 482                                                      BTUSB_INTEL_NO_WBS_SUPPORT |
 483                                                      BTUSB_INTEL_BROKEN_INITIAL_NCMD |
 484                                                      BTUSB_INTEL_BROKEN_SHUTDOWN_LED },
 485         { USB_DEVICE(0x8087, 0x0a2a), .driver_info = BTUSB_INTEL_COMBINED |
 486                                                      BTUSB_INTEL_NO_WBS_SUPPORT |
 487                                                      BTUSB_INTEL_BROKEN_SHUTDOWN_LED },
 488         { USB_DEVICE(0x8087, 0x0a2b), .driver_info = BTUSB_INTEL_COMBINED },
 489         { USB_DEVICE(0x8087, 0x0aa7), .driver_info = BTUSB_INTEL_COMBINED |
 490                                                      BTUSB_INTEL_BROKEN_SHUTDOWN_LED },
 491         { USB_DEVICE(0x8087, 0x0aaa), .driver_info = BTUSB_INTEL_COMBINED },
 492
 493         /* Other Intel Bluetooth devices */
 494         { USB_VENDOR_AND_INTERFACE_INFO(0x8087, 0xe0, 0x01, 0x01),
 495           .driver_info = BTUSB_IGNORE },
 496
 497         /* Realtek 8821CE Bluetooth devices */
 498         { USB_DEVICE(0x13d3, 0x3529), .driver_info = BTUSB_REALTEK |
 499                                                      BTUSB_WIDEBAND_SPEECH },
 500
 501         /* Realtek 8822CE Bluetooth devices */
 502         { USB_DEVICE(0x0bda, 0xb00c), .driver_info = BTUSB_REALTEK |
 503                                                      BTUSB_WIDEBAND_SPEECH },
 504         { USB_DEVICE(0x0bda, 0xc822), .driver_info = BTUSB_REALTEK |
 505                                                      BTUSB_WIDEBAND_SPEECH },
 506
 507         /* Realtek 8822CU Bluetooth devices */
 508         { USB_DEVICE(0x13d3, 0x3549), .driver_info = BTUSB_REALTEK |
 509                                                      BTUSB_WIDEBAND_SPEECH },
 510
 511         /* Realtek 8852AE Bluetooth devices */
 512         { USB_DEVICE(0x0bda, 0x2852), .driver_info = BTUSB_REALTEK |
 513                                                      BTUSB_WIDEBAND_SPEECH },
 514         { USB_DEVICE(0x0bda, 0xc852), .driver_info = BTUSB_REALTEK |
 515                                                      BTUSB_WIDEBAND_SPEECH },
 516         { USB_DEVICE(0x0bda, 0x385a), .driver_info = BTUSB_REALTEK |
 517                                                      BTUSB_WIDEBAND_SPEECH },
 518         { USB_DEVICE(0x0bda, 0x4852), .driver_info = BTUSB_REALTEK |
 519                                                      BTUSB_WIDEBAND_SPEECH },
 520         { USB_DEVICE(0x04c5, 0x165c), .driver_info = BTUSB_REALTEK |
 521                                                      BTUSB_WIDEBAND_SPEECH },
 522         { USB_DEVICE(0x04ca, 0x4006), .driver_info = BTUSB_REALTEK |
 523                                                      BTUSB_WIDEBAND_SPEECH },
 524         { USB_DEVICE(0x0cb8, 0xc549), .driver_info = BTUSB_REALTEK |
 525                                                      BTUSB_WIDEBAND_SPEECH },
 526
 527         /* Realtek 8852CE Bluetooth devices */
 528         { USB_DEVICE(0x04ca, 0x4007), .driver_info = BTUSB_REALTEK |
 529                                                      BTUSB_WIDEBAND_SPEECH },
 530         { USB_DEVICE(0x04c5, 0x1675), .driver_info = BTUSB_REALTEK |
 531                                                      BTUSB_WIDEBAND_SPEECH },
 532         { USB_DEVICE(0x0cb8, 0xc558), .driver_info = BTUSB_REALTEK |
 533                                                      BTUSB_WIDEBAND_SPEECH },
 534         { USB_DEVICE(0x13d3, 0x3587), .driver_info = BTUSB_REALTEK |
 535                                                      BTUSB_WIDEBAND_SPEECH },
 536         { USB_DEVICE(0x13d3, 0x3586), .driver_info = BTUSB_REALTEK |
 537                                                      BTUSB_WIDEBAND_SPEECH },
 538         { USB_DEVICE(0x13d3, 0x3592), .driver_info = BTUSB_REALTEK |
 539                                                      BTUSB_WIDEBAND_SPEECH },
 540
 541         /* Realtek 8852BE Bluetooth devices */
 542         { USB_DEVICE(0x0cb8, 0xc559), .driver_info = BTUSB_REALTEK |
 543                                                      BTUSB_WIDEBAND_SPEECH },
 544         { USB_DEVICE(0x0bda, 0x887b), .driver_info = BTUSB_REALTEK |
 545                                                      BTUSB_WIDEBAND_SPEECH },
 546         { USB_DEVICE(0x13d3, 0x3571), .driver_info = BTUSB_REALTEK |
 547                                                      BTUSB_WIDEBAND_SPEECH },
 548
 549         /* Realtek Bluetooth devices */
 550         { USB_VENDOR_AND_INTERFACE_INFO(0x0bda, 0xe0, 0x01, 0x01),
 551           .driver_info = BTUSB_REALTEK },
 552
 553         /* MediaTek Bluetooth devices */
 554         { USB_VENDOR_AND_INTERFACE_INFO(0x0e8d, 0xe0, 0x01, 0x01),
 555           .driver_info = BTUSB_MEDIATEK |
 556                          BTUSB_WIDEBAND_SPEECH |
 557                          BTUSB_VALID_LE_STATES },
 558
 559         /* Additional MediaTek MT7615E Bluetooth devices */
 560         { USB_DEVICE(0x13d3, 0x3560), .driver_info = BTUSB_MEDIATEK},
 561
 562         /* Additional MediaTek MT7663 Bluetooth devices */
 563         { USB_DEVICE(0x043e, 0x310c), .driver_info = BTUSB_MEDIATEK |
 564                                                      BTUSB_WIDEBAND_SPEECH |
 565                                                      BTUSB_VALID_LE_STATES },
 566         { USB_DEVICE(0x04ca, 0x3801), .driver_info = BTUSB_MEDIATEK |
 567                                                      BTUSB_WIDEBAND_SPEECH |
 568                                                      BTUSB_VALID_LE_STATES },
 569
 570         /* Additional MediaTek MT7668 Bluetooth devices */
 571         { USB_DEVICE(0x043e, 0x3109), .driver_info = BTUSB_MEDIATEK |
 572                                                      BTUSB_WIDEBAND_SPEECH |
 573                                                      BTUSB_VALID_LE_STATES },
 574
 575         /* Additional MediaTek MT7921 Bluetooth devices */
 576         { USB_DEVICE(0x0489, 0xe0c8), .driver_info = BTUSB_MEDIATEK |
 577                                                      BTUSB_WIDEBAND_SPEECH |
 578                                                      BTUSB_VALID_LE_STATES },
 579         { USB_DEVICE(0x0489, 0xe0e0), .driver_info = BTUSB_MEDIATEK |
 580                                                      BTUSB_WIDEBAND_SPEECH |
 581                                                      BTUSB_VALID_LE_STATES },
 582         { USB_DEVICE(0x0489, 0xe0f2), .driver_info = BTUSB_MEDIATEK |
 583                                                      BTUSB_WIDEBAND_SPEECH |
 584                                                      BTUSB_VALID_LE_STATES },
 585         { USB_DEVICE(0x04ca, 0x3802), .driver_info = BTUSB_MEDIATEK |
 586                                                      BTUSB_WIDEBAND_SPEECH |
 587                                                      BTUSB_VALID_LE_STATES },
 588         { USB_DEVICE(0x13d3, 0x3563), .driver_info = BTUSB_MEDIATEK |
 589                                                      BTUSB_WIDEBAND_SPEECH |
 590                                                      BTUSB_VALID_LE_STATES },
 591         { USB_DEVICE(0x13d3, 0x3564), .driver_info = BTUSB_MEDIATEK |
 592                                                      BTUSB_WIDEBAND_SPEECH |
 593                                                      BTUSB_VALID_LE_STATES },
 594         { USB_DEVICE(0x13d3, 0x3567), .driver_info = BTUSB_MEDIATEK |
 595                                                      BTUSB_WIDEBAND_SPEECH |
 596                                                      BTUSB_VALID_LE_STATES },
 597         { USB_DEVICE(0x13d3, 0x3578), .driver_info = BTUSB_MEDIATEK |
 598                                                      BTUSB_WIDEBAND_SPEECH |
 599                                                      BTUSB_VALID_LE_STATES },
 600         { USB_DEVICE(0x13d3, 0x3583), .driver_info = BTUSB_MEDIATEK |
 601                                                      BTUSB_WIDEBAND_SPEECH |
 602                                                      BTUSB_VALID_LE_STATES },
 603         { USB_DEVICE(0x0489, 0xe0cd), .driver_info = BTUSB_MEDIATEK |
 604                                                      BTUSB_WIDEBAND_SPEECH |
 605                                                      BTUSB_VALID_LE_STATES },
 606         { USB_DEVICE(0x0e8d, 0x0608), .driver_info = BTUSB_MEDIATEK |
 607                                                      BTUSB_WIDEBAND_SPEECH |
 608                                                      BTUSB_VALID_LE_STATES },
 609
 610         /* MediaTek MT7922A Bluetooth devices */
 611         { USB_DEVICE(0x0489, 0xe0d8), .driver_info = BTUSB_MEDIATEK |
 612                                                      BTUSB_WIDEBAND_SPEECH |
 613                                                      BTUSB_VALID_LE_STATES },
 614         { USB_DEVICE(0x0489, 0xe0d9), .driver_info = BTUSB_MEDIATEK |
 615                                                      BTUSB_WIDEBAND_SPEECH |
 616                                                      BTUSB_VALID_LE_STATES },
 617         { USB_DEVICE(0x0489, 0xe0f5), .driver_info = BTUSB_MEDIATEK |
 618                                                      BTUSB_WIDEBAND_SPEECH |
 619                                                      BTUSB_VALID_LE_STATES },
 620         { USB_DEVICE(0x13d3, 0x3568), .driver_info = BTUSB_MEDIATEK |
 621                                                      BTUSB_WIDEBAND_SPEECH |
 622                                                      BTUSB_VALID_LE_STATES },
 623         { USB_DEVICE(0x0489, 0xe0e2), .driver_info = BTUSB_MEDIATEK |
 624                                                      BTUSB_WIDEBAND_SPEECH |
 625                                                      BTUSB_VALID_LE_STATES },
 626         { USB_DEVICE(0x0489, 0xe0e4), .driver_info = BTUSB_MEDIATEK |
 627                                                      BTUSB_WIDEBAND_SPEECH |
 628                                                      BTUSB_VALID_LE_STATES },
 629         { USB_DEVICE(0x0489, 0xe0f2), .driver_info = BTUSB_MEDIATEK |
 630                                                      BTUSB_WIDEBAND_SPEECH |
 631                                                      BTUSB_VALID_LE_STATES },
 632         { USB_DEVICE(0x0489, 0xe0f5), .driver_info = BTUSB_MEDIATEK |
 633                                                      BTUSB_WIDEBAND_SPEECH |
 634                                                      BTUSB_VALID_LE_STATES },
 635         { USB_DEVICE(0x0489, 0xe0f6), .driver_info = BTUSB_MEDIATEK |
 636                                                      BTUSB_WIDEBAND_SPEECH |
 637                                                      BTUSB_VALID_LE_STATES },
 638
 639         /* Additional Realtek 8723AE Bluetooth devices */
 640         { USB_DEVICE(0x0930, 0x021d), .driver_info = BTUSB_REALTEK },
 641         { USB_DEVICE(0x13d3, 0x3394), .driver_info = BTUSB_REALTEK },
 642
 643         /* Additional Realtek 8723BE Bluetooth devices */
 644         { USB_DEVICE(0x0489, 0xe085), .driver_info = BTUSB_REALTEK },
 645         { USB_DEVICE(0x0489, 0xe08b), .driver_info = BTUSB_REALTEK },
 646         { USB_DEVICE(0x04f2, 0xb49f), .driver_info = BTUSB_REALTEK },
 647         { USB_DEVICE(0x13d3, 0x3410), .driver_info = BTUSB_REALTEK },
 648         { USB_DEVICE(0x13d3, 0x3416), .driver_info = BTUSB_REALTEK },
 649         { USB_DEVICE(0x13d3, 0x3459), .driver_info = BTUSB_REALTEK },
 650         { USB_DEVICE(0x13d3, 0x3494), .driver_info = BTUSB_REALTEK },
 651
 652         /* Additional Realtek 8723BU Bluetooth devices */
 653         { USB_DEVICE(0x7392, 0xa611), .driver_info = BTUSB_REALTEK },
 654
 655         /* Additional Realtek 8723DE Bluetooth devices */
 656         { USB_DEVICE(0x0bda, 0xb009), .driver_info = BTUSB_REALTEK },
 657         { USB_DEVICE(0x2ff8, 0xb011), .driver_info = BTUSB_REALTEK },
 658
 659         /* Additional Realtek 8761BUV Bluetooth devices */
 660         { USB_DEVICE(0x2357, 0x0604), .driver_info = BTUSB_REALTEK |
 661                                                      BTUSB_WIDEBAND_SPEECH },
 662         { USB_DEVICE(0x0b05, 0x190e), .driver_info = BTUSB_REALTEK |
 663                                                      BTUSB_WIDEBAND_SPEECH },
 664         { USB_DEVICE(0x2550, 0x8761), .driver_info = BTUSB_REALTEK |
 665                                                      BTUSB_WIDEBAND_SPEECH },
 666         { USB_DEVICE(0x0bda, 0x8771), .driver_info = BTUSB_REALTEK |
 667                                                      BTUSB_WIDEBAND_SPEECH },
 668         { USB_DEVICE(0x6655, 0x8771), .driver_info = BTUSB_REALTEK |
 669                                                      BTUSB_WIDEBAND_SPEECH },
 670         { USB_DEVICE(0x7392, 0xc611), .driver_info = BTUSB_REALTEK |
 671                                                      BTUSB_WIDEBAND_SPEECH },
 672         { USB_DEVICE(0x2b89, 0x8761), .driver_info = BTUSB_REALTEK |
 673                                                      BTUSB_WIDEBAND_SPEECH },
 674
 675         /* Additional Realtek 8821AE Bluetooth devices */
 676         { USB_DEVICE(0x0b05, 0x17dc), .driver_info = BTUSB_REALTEK },
 677         { USB_DEVICE(0x13d3, 0x3414), .driver_info = BTUSB_REALTEK },
 678         { USB_DEVICE(0x13d3, 0x3458), .driver_info = BTUSB_REALTEK },
 679         { USB_DEVICE(0x13d3, 0x3461), .driver_info = BTUSB_REALTEK },
 680         { USB_DEVICE(0x13d3, 0x3462), .driver_info = BTUSB_REALTEK },
 681
 682         /* Additional Realtek 8822BE Bluetooth devices */
 683         { USB_DEVICE(0x13d3, 0x3526), .driver_info = BTUSB_REALTEK },
 684         { USB_DEVICE(0x0b05, 0x185c), .driver_info = BTUSB_REALTEK },
 685
 686         /* Additional Realtek 8822CE Bluetooth devices */
 687         { USB_DEVICE(0x04ca, 0x4005), .driver_info = BTUSB_REALTEK |
 688                                                      BTUSB_WIDEBAND_SPEECH },
 689         { USB_DEVICE(0x04c5, 0x161f), .driver_info = BTUSB_REALTEK |
 690                                                      BTUSB_WIDEBAND_SPEECH },
 691         { USB_DEVICE(0x0b05, 0x18ef), .driver_info = BTUSB_REALTEK |
 692                                                      BTUSB_WIDEBAND_SPEECH },
 693         { USB_DEVICE(0x13d3, 0x3548), .driver_info = BTUSB_REALTEK |
 694                                                      BTUSB_WIDEBAND_SPEECH },
 695         { USB_DEVICE(0x13d3, 0x3549), .driver_info = BTUSB_REALTEK |
 696                                                      BTUSB_WIDEBAND_SPEECH },
 697         { USB_DEVICE(0x13d3, 0x3553), .driver_info = BTUSB_REALTEK |
 698                                                      BTUSB_WIDEBAND_SPEECH },
 699         { USB_DEVICE(0x13d3, 0x3555), .driver_info = BTUSB_REALTEK |
 700                                                      BTUSB_WIDEBAND_SPEECH },
 701         { USB_DEVICE(0x2ff8, 0x3051), .driver_info = BTUSB_REALTEK |
 702                                                      BTUSB_WIDEBAND_SPEECH },
 703         { USB_DEVICE(0x1358, 0xc123), .driver_info = BTUSB_REALTEK |
 704                                                      BTUSB_WIDEBAND_SPEECH },
 705         { USB_DEVICE(0x0bda, 0xc123), .driver_info = BTUSB_REALTEK |
 706                                                      BTUSB_WIDEBAND_SPEECH },
 707         { USB_DEVICE(0x0cb5, 0xc547), .driver_info = BTUSB_REALTEK |
 708                                                      BTUSB_WIDEBAND_SPEECH },
 709
 710         /* Actions Semiconductor ATS2851 based devices */
 711         { USB_DEVICE(0x10d7, 0xb012), .driver_info = BTUSB_ACTIONS_SEMI },
 712
 713         /* Silicon Wave based devices */
 714         { USB_DEVICE(0x0c10, 0x0000), .driver_info = BTUSB_SWAVE },
 715
 716         { }     /* Terminating entry */
 717 };
 718
 719 /* The Bluetooth USB module build into some devices needs to be reset on resume,
 720  * this is a problem with the platform (likely shutting off all power) not with
 721  * the module itself. So we use a DMI list to match known broken platforms.
 722  */
 723 static const struct dmi_system_id btusb_needs_reset_resume_table[] = {
 724         {
 725                 /* Dell OptiPlex 3060 (QCA ROME device 0cf3:e007) */
 726                 .matches = {
 727                         DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
 728                         DMI_MATCH(DMI_PRODUCT_NAME, "OptiPlex 3060"),
 729                 },
 730         },
 731         {
 732                 /* Dell XPS 9360 (QCA ROME device 0cf3:e300) */
 733                 .matches = {
 734                         DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
 735                         DMI_MATCH(DMI_PRODUCT_NAME, "XPS 13 9360"),
 736                 },
 737         },
 738         {
 739                 /* Dell Inspiron 5565 (QCA ROME device 0cf3:e009) */
 740                 .matches = {
 741                         DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
 742                         DMI_MATCH(DMI_PRODUCT_NAME, "Inspiron 5565"),
 743                 },
 744         },
 745         {}
 746 };
 747
 748 struct qca_dump_info {
 749         /* fields for dump collection */
 750         u16 id_vendor;
 751         u16 id_product;
 752         u32 fw_version;
 753         u32 controller_id;
 754         u32 ram_dump_size;
 755         u16 ram_dump_seqno;
 756 };
 757
 758 #define BTUSB_MAX_ISOC_FRAMES   10
 759
 760 #define BTUSB_INTR_RUNNING      0
 761 #define BTUSB_BULK_RUNNING      1
 762 #define BTUSB_ISOC_RUNNING      2
 763 #define BTUSB_SUSPENDING        3
 764 #define BTUSB_DID_ISO_RESUME    4
 765 #define BTUSB_BOOTLOADER        5
 766 #define BTUSB_DOWNLOADING       6
 767 #define BTUSB_FIRMWARE_LOADED   7
 768 #define BTUSB_FIRMWARE_FAILED   8
 769 #define BTUSB_BOOTING           9
 770 #define BTUSB_DIAG_RUNNING      10
 771 #define BTUSB_OOB_WAKE_ENABLED  11
 772 #define BTUSB_HW_RESET_ACTIVE   12
 773 #define BTUSB_TX_WAIT_VND_EVT   13
 774 #define BTUSB_WAKEUP_AUTOSUSPEND        14
 775 #define BTUSB_USE_ALT3_FOR_WBS  15
 776 #define BTUSB_ALT6_CONTINUOUS_TX        16
 777 #define BTUSB_HW_SSR_ACTIVE     17
 778
 779 struct btusb_data {
 780         struct hci_dev       *hdev;
 781         struct usb_device    *udev;
 782         struct usb_interface *intf;
 783         struct usb_interface *isoc;
 784         struct usb_interface *diag;
 785         unsigned isoc_ifnum;
 786
 787         unsigned long flags;
 788
 789         bool poll_sync;
 790         int intr_interval;
 791         struct work_struct  work;
 792         struct work_struct  waker;
 793         struct delayed_work rx_work;
 794
 795         struct sk_buff_head acl_q;
 796
 797         struct usb_anchor deferred;
 798         struct usb_anchor tx_anchor;
 799         int tx_in_flight;
 800         spinlock_t txlock;
 801
 802         struct usb_anchor intr_anchor;
 803         struct usb_anchor bulk_anchor;
 804         struct usb_anchor isoc_anchor;
 805         struct usb_anchor diag_anchor;
 806         struct usb_anchor ctrl_anchor;
 807         spinlock_t rxlock;
 808
 809         struct sk_buff *evt_skb;
 810         struct sk_buff *acl_skb;
 811         struct sk_buff *sco_skb;
 812
 813         struct usb_endpoint_descriptor *intr_ep;
 814         struct usb_endpoint_descriptor *bulk_tx_ep;
 815         struct usb_endpoint_descriptor *bulk_rx_ep;
 816         struct usb_endpoint_descriptor *isoc_tx_ep;
 817         struct usb_endpoint_descriptor *isoc_rx_ep;
 818         struct usb_endpoint_descriptor *diag_tx_ep;
 819         struct usb_endpoint_descriptor *diag_rx_ep;
 820
 821         struct gpio_desc *reset_gpio;
 822
 823         __u8 cmdreq_type;
 824         __u8 cmdreq;
 825
 826         unsigned int sco_num;
 827         unsigned int air_mode;
 828         bool usb_alt6_packet_flow;
 829         int isoc_altsetting;
 830         int suspend_count;
 831
 832         int (*recv_event)(struct hci_dev *hdev, struct sk_buff *skb);
 833         int (*recv_acl)(struct hci_dev *hdev, struct sk_buff *skb);
 834         int (*recv_bulk)(struct btusb_data *data, void *buffer, int count);
 835
 836         int (*setup_on_usb)(struct hci_dev *hdev);
 837
 838         int oob_wake_irq;   /* irq for out-of-band wake-on-bt */
 839         unsigned cmd_timeout_cnt;
 840
 841         struct qca_dump_info qca_dump;
 842 };
 843
 844 static void btusb_reset(struct hci_dev *hdev)
 845 {
 846         struct btusb_data *data;
 847         int err;
 848
 849         if (hdev->reset) {
 850                 hdev->reset(hdev);
 851                 return;
 852         }
 853
 854         data = hci_get_drvdata(hdev);
 855         /* This is not an unbalanced PM reference since the device will reset */
 856         err = usb_autopm_get_interface(data->intf);
 857         if (err) {
 858                 bt_dev_err(hdev, "Failed usb_autopm_get_interface: %d", err);
 859                 return;
 860         }
 861
 862         bt_dev_err(hdev, "Resetting usb device.");
 863         usb_queue_reset_device(data->intf);
 864 }
 865
 866 static void btusb_intel_cmd_timeout(struct hci_dev *hdev)
 867 {
 868         struct btusb_data *data = hci_get_drvdata(hdev);
 869         struct gpio_desc *reset_gpio = data->reset_gpio;
 870         struct btintel_data *intel_data = hci_get_priv(hdev);
 871
 872         if (++data->cmd_timeout_cnt < 5)
 873                 return;
 874
 875         if (intel_data->acpi_reset_method) {
 876                 if (test_and_set_bit(INTEL_ACPI_RESET_ACTIVE, intel_data->flags)) {
 877                         bt_dev_err(hdev, "acpi: last reset failed ? Not resetting again");
 878                         return;
 879                 }
 880
 881                 bt_dev_err(hdev, "Initiating acpi reset method");
 882                 /* If ACPI reset method fails, lets try with legacy GPIO
 883                  * toggling
 884                  */
 885                 if (!intel_data->acpi_reset_method(hdev)) {
 886                         return;
 887                 }
 888         }
 889
 890         if (!reset_gpio) {
 891                 btusb_reset(hdev);
 892                 return;
 893         }
 894
 895         /*
 896          * Toggle the hard reset line if the platform provides one. The reset
 897          * is going to yank the device off the USB and then replug. So doing
 898          * once is enough. The cleanup is handled correctly on the way out
 899          * (standard USB disconnect), and the new device is detected cleanly
 900          * and bound to the driver again like it should be.
 901          */
 902         if (test_and_set_bit(BTUSB_HW_RESET_ACTIVE, &data->flags)) {
 903                 bt_dev_err(hdev, "last reset failed? Not resetting again");
 904                 return;
 905         }
 906
 907         bt_dev_err(hdev, "Initiating HW reset via gpio");
 908         gpiod_set_value_cansleep(reset_gpio, 1);
 909         msleep(100);
 910         gpiod_set_value_cansleep(reset_gpio, 0);
 911 }
 912
 913 #define RTK_DEVCOREDUMP_CODE_MEMDUMP            0x01
 914 #define RTK_DEVCOREDUMP_CODE_HW_ERR             0x02
 915 #define RTK_DEVCOREDUMP_CODE_CMD_TIMEOUT        0x03
 916
 917 #define RTK_SUB_EVENT_CODE_COREDUMP             0x34
 918
 919 struct rtk_dev_coredump_hdr {
 920         u8 type;
 921         u8 code;
 922         u8 reserved[2];
 923 } __packed;
 924
 925 static inline void btusb_rtl_alloc_devcoredump(struct hci_dev *hdev,
 926                 struct rtk_dev_coredump_hdr *hdr, u8 *buf, u32 len)
 927 {
 928         struct sk_buff *skb;
 929
 930         skb = alloc_skb(len + sizeof(*hdr), GFP_ATOMIC);
 931         if (!skb)
 932                 return;
 933
 934         skb_put_data(skb, hdr, sizeof(*hdr));
 935         if (len)
 936                 skb_put_data(skb, buf, len);
 937
 938         if (!hci_devcd_init(hdev, skb->len)) {
 939                 hci_devcd_append(hdev, skb);
 940                 hci_devcd_complete(hdev);
 941         } else {
 942                 bt_dev_err(hdev, "RTL: Failed to generate devcoredump");
 943                 kfree_skb(skb);
 944         }
 945 }
 946
 947 static void btusb_rtl_cmd_timeout(struct hci_dev *hdev)
 948 {
 949         struct btusb_data *data = hci_get_drvdata(hdev);
 950         struct gpio_desc *reset_gpio = data->reset_gpio;
 951         struct rtk_dev_coredump_hdr hdr = {
 952                 .type = RTK_DEVCOREDUMP_CODE_CMD_TIMEOUT,
 953         };
 954
 955         btusb_rtl_alloc_devcoredump(hdev, &hdr, NULL, 0);
 956
 957         if (++data->cmd_timeout_cnt < 5)
 958                 return;
 959
 960         if (!reset_gpio) {
 961                 btusb_reset(hdev);
 962                 return;
 963         }
 964
 965         /* Toggle the hard reset line. The Realtek device is going to
 966          * yank itself off the USB and then replug. The cleanup is handled
 967          * correctly on the way out (standard USB disconnect), and the new
 968          * device is detected cleanly and bound to the driver again like
 969          * it should be.
 970          */
 971         if (test_and_set_bit(BTUSB_HW_RESET_ACTIVE, &data->flags)) {
 972                 bt_dev_err(hdev, "last reset failed? Not resetting again");
 973                 return;
 974         }
 975
 976         bt_dev_err(hdev, "Reset Realtek device via gpio");
 977         gpiod_set_value_cansleep(reset_gpio, 1);
 978         msleep(200);
 979         gpiod_set_value_cansleep(reset_gpio, 0);
 980 }
 981
 982 static void btusb_rtl_hw_error(struct hci_dev *hdev, u8 code)
 983 {
 984         struct rtk_dev_coredump_hdr hdr = {
 985                 .type = RTK_DEVCOREDUMP_CODE_HW_ERR,
 986                 .code = code,
 987         };
 988
 989         bt_dev_err(hdev, "RTL: hw err, trigger devcoredump (%d)", code);
 990
 991         btusb_rtl_alloc_devcoredump(hdev, &hdr, NULL, 0);
 992 }
 993
 994 static void btusb_qca_cmd_timeout(struct hci_dev *hdev)
 995 {
 996         struct btusb_data *data = hci_get_drvdata(hdev);
 997         struct gpio_desc *reset_gpio = data->reset_gpio;
 998
 999         if (test_bit(BTUSB_HW_SSR_ACTIVE, &data->flags)) {
1000                 bt_dev_info(hdev, "Ramdump in progress, defer cmd_timeout");
1001                 return;
1002         }
1003
1004         if (++data->cmd_timeout_cnt < 5)
1005                 return;
1006
1007         if (reset_gpio) {
1008                 bt_dev_err(hdev, "Reset qca device via bt_en gpio");
1009
1010                 /* Toggle the hard reset line. The qca bt device is going to
1011                  * yank itself off the USB and then replug. The cleanup is handled
1012                  * correctly on the way out (standard USB disconnect), and the new
1013                  * device is detected cleanly and bound to the driver again like
1014                  * it should be.
1015                  */
1016                 if (test_and_set_bit(BTUSB_HW_RESET_ACTIVE, &data->flags)) {
1017                         bt_dev_err(hdev, "last reset failed? Not resetting again");
1018                         return;
1019                 }
1020
1021                 gpiod_set_value_cansleep(reset_gpio, 0);
1022                 msleep(200);
1023                 gpiod_set_value_cansleep(reset_gpio, 1);
1024
1025                 return;
1026         }
1027
1028         btusb_reset(hdev);
1029 }
1030
1031 static inline void btusb_free_frags(struct btusb_data *data)
1032 {
1033         unsigned long flags;
1034
1035         spin_lock_irqsave(&data->rxlock, flags);
1036
1037         dev_kfree_skb_irq(data->evt_skb);
1038         data->evt_skb = NULL;
1039
1040         dev_kfree_skb_irq(data->acl_skb);
1041         data->acl_skb = NULL;
1042
1043         dev_kfree_skb_irq(data->sco_skb);
1044         data->sco_skb = NULL;
1045
1046         spin_unlock_irqrestore(&data->rxlock, flags);
1047 }
1048
1049 static int btusb_recv_event(struct btusb_data *data, struct sk_buff *skb)
1050 {
1051         if (data->intr_interval) {
1052                 /* Trigger dequeue immediatelly if an event is received */
1053                 schedule_delayed_work(&data->rx_work, 0);
1054         }
1055
1056         return data->recv_event(data->hdev, skb);
1057 }
1058
1059 static int btusb_recv_intr(struct btusb_data *data, void *buffer, int count)
1060 {
1061         struct sk_buff *skb;
1062         unsigned long flags;
1063         int err = 0;
1064
1065         spin_lock_irqsave(&data->rxlock, flags);
1066         skb = data->evt_skb;
1067
1068         while (count) {
1069                 int len;
1070
1071                 if (!skb) {
1072                         skb = bt_skb_alloc(HCI_MAX_EVENT_SIZE, GFP_ATOMIC);
1073                         if (!skb) {
1074                                 err = -ENOMEM;
1075                                 break;
1076                         }
1077
1078                         hci_skb_pkt_type(skb) = HCI_EVENT_PKT;
1079                         hci_skb_expect(skb) = HCI_EVENT_HDR_SIZE;
1080                 }
1081
1082                 len = min_t(uint, hci_skb_expect(skb), count);
1083                 skb_put_data(skb, buffer, len);
1084
1085                 count -= len;
1086                 buffer += len;
1087                 hci_skb_expect(skb) -= len;
1088
1089                 if (skb->len == HCI_EVENT_HDR_SIZE) {
1090                         /* Complete event header */
1091                         hci_skb_expect(skb) = hci_event_hdr(skb)->plen;
1092
1093                         if (skb_tailroom(skb) < hci_skb_expect(skb)) {
1094                                 kfree_skb(skb);
1095                                 skb = NULL;
1096
1097                                 err = -EILSEQ;
1098                                 break;
1099                         }
1100                 }
1101
1102                 if (!hci_skb_expect(skb)) {
1103                         /* Complete frame */
1104                         btusb_recv_event(data, skb);
1105                         skb = NULL;
1106                 }
1107         }
1108
1109         data->evt_skb = skb;
1110         spin_unlock_irqrestore(&data->rxlock, flags);
1111
1112         return err;
1113 }
1114
1115 static int btusb_recv_acl(struct btusb_data *data, struct sk_buff *skb)
1116 {
1117         /* Only queue ACL packet if intr_interval is set as it means
1118          * force_poll_sync has been enabled.
1119          */
1120         if (!data->intr_interval)
1121                 return data->recv_acl(data->hdev, skb);
1122
1123         skb_queue_tail(&data->acl_q, skb);
1124         schedule_delayed_work(&data->rx_work, data->intr_interval);
1125
1126         return 0;
1127 }
1128
1129 static int btusb_recv_bulk(struct btusb_data *data, void *buffer, int count)
1130 {
1131         struct sk_buff *skb;
1132         unsigned long flags;
1133         int err = 0;
1134
1135         spin_lock_irqsave(&data->rxlock, flags);
1136         skb = data->acl_skb;
1137
1138         while (count) {
1139                 int len;
1140
1141                 if (!skb) {
1142                         skb = bt_skb_alloc(HCI_MAX_FRAME_SIZE, GFP_ATOMIC);
1143                         if (!skb) {
1144                                 err = -ENOMEM;
1145                                 break;
1146                         }
1147
1148                         hci_skb_pkt_type(skb) = HCI_ACLDATA_PKT;
1149                         hci_skb_expect(skb) = HCI_ACL_HDR_SIZE;
1150                 }
1151
1152                 len = min_t(uint, hci_skb_expect(skb), count);
1153                 skb_put_data(skb, buffer, len);
1154
1155                 count -= len;
1156                 buffer += len;
1157                 hci_skb_expect(skb) -= len;
1158
1159                 if (skb->len == HCI_ACL_HDR_SIZE) {
1160                         __le16 dlen = hci_acl_hdr(skb)->dlen;
1161
1162                         /* Complete ACL header */
1163                         hci_skb_expect(skb) = __le16_to_cpu(dlen);
1164
1165                         if (skb_tailroom(skb) < hci_skb_expect(skb)) {
1166                                 kfree_skb(skb);
1167                                 skb = NULL;
1168
1169                                 err = -EILSEQ;
1170                                 break;
1171                         }
1172                 }
1173
1174                 if (!hci_skb_expect(skb)) {
1175                         /* Complete frame */
1176                         btusb_recv_acl(data, skb);
1177                         skb = NULL;
1178                 }
1179         }
1180
1181         data->acl_skb = skb;
1182         spin_unlock_irqrestore(&data->rxlock, flags);
1183
1184         return err;
1185 }
1186
1187 static bool btusb_validate_sco_handle(struct hci_dev *hdev,
1188                                       struct hci_sco_hdr *hdr)
1189 {
1190         __u16 handle;
1191
1192         if (hci_dev_test_flag(hdev, HCI_USER_CHANNEL))
1193                 // Can't validate, userspace controls everything.
1194                 return true;
1195
1196         /*
1197          * USB isochronous transfers are not designed to be reliable and may
1198          * lose fragments.  When this happens, the next first fragment
1199          * encountered might actually be a continuation fragment.
1200          * Validate the handle to detect it and drop it, or else the upper
1201          * layer will get garbage for a while.
1202          */
1203
1204         handle = hci_handle(__le16_to_cpu(hdr->handle));
1205
1206         switch (hci_conn_lookup_type(hdev, handle)) {
1207         case SCO_LINK:
1208         case ESCO_LINK:
1209                 return true;
1210         default:
1211                 return false;
1212         }
1213 }
1214
1215 static int btusb_recv_isoc(struct btusb_data *data, void *buffer, int count)
1216 {
1217         struct sk_buff *skb;
1218         unsigned long flags;
1219         int err = 0;
1220
1221         spin_lock_irqsave(&data->rxlock, flags);
1222         skb = data->sco_skb;
1223
1224         while (count) {
1225                 int len;
1226
1227                 if (!skb) {
1228                         skb = bt_skb_alloc(HCI_MAX_SCO_SIZE, GFP_ATOMIC);
1229                         if (!skb) {
1230                                 err = -ENOMEM;
1231                                 break;
1232                         }
1233
1234                         hci_skb_pkt_type(skb) = HCI_SCODATA_PKT;
1235                         hci_skb_expect(skb) = HCI_SCO_HDR_SIZE;
1236                 }
1237
1238                 len = min_t(uint, hci_skb_expect(skb), count);
1239                 skb_put_data(skb, buffer, len);
1240
1241                 count -= len;
1242                 buffer += len;
1243                 hci_skb_expect(skb) -= len;
1244
1245                 if (skb->len == HCI_SCO_HDR_SIZE) {
1246                         /* Complete SCO header */
1247                         struct hci_sco_hdr *hdr = hci_sco_hdr(skb);
1248
1249                         hci_skb_expect(skb) = hdr->dlen;
1250
1251                         if (skb_tailroom(skb) < hci_skb_expect(skb) ||
1252                             !btusb_validate_sco_handle(data->hdev, hdr)) {
1253                                 kfree_skb(skb);
1254                                 skb = NULL;
1255
1256                                 err = -EILSEQ;
1257                                 break;
1258                         }
1259                 }
1260
1261                 if (!hci_skb_expect(skb)) {
1262                         /* Complete frame */
1263                         hci_recv_frame(data->hdev, skb);
1264                         skb = NULL;
1265                 }
1266         }
1267
1268         data->sco_skb = skb;
1269         spin_unlock_irqrestore(&data->rxlock, flags);
1270
1271         return err;
1272 }
1273
1274 static void btusb_intr_complete(struct urb *urb)
1275 {
1276         struct hci_dev *hdev = urb->context;
1277         struct btusb_data *data = hci_get_drvdata(hdev);
1278         int err;
1279
1280         BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
1281                urb->actual_length);
1282
1283         if (!test_bit(HCI_RUNNING, &hdev->flags))
1284                 return;
1285
1286         if (urb->status == 0) {
1287                 hdev->stat.byte_rx += urb->actual_length;
1288
1289                 if (btusb_recv_intr(data, urb->transfer_buffer,
1290                                     urb->actual_length) < 0) {
1291                         bt_dev_err(hdev, "corrupted event packet");
1292                         hdev->stat.err_rx++;
1293                 }
1294         } else if (urb->status == -ENOENT) {
1295                 /* Avoid suspend failed when usb_kill_urb */
1296                 return;
1297         }
1298
1299         if (!test_bit(BTUSB_INTR_RUNNING, &data->flags))
1300                 return;
1301
1302         usb_mark_last_busy(data->udev);
1303         usb_anchor_urb(urb, &data->intr_anchor);
1304
1305         err = usb_submit_urb(urb, GFP_ATOMIC);
1306         if (err < 0) {
1307                 /* -EPERM: urb is being killed;
1308                  * -ENODEV: device got disconnected
1309                  */
1310                 if (err != -EPERM && err != -ENODEV)
1311                         bt_dev_err(hdev, "urb %p failed to resubmit (%d)",
1312                                    urb, -err);
1313                 if (err != -EPERM)
1314                         hci_cmd_sync_cancel(hdev, -err);
1315                 usb_unanchor_urb(urb);
1316         }
1317 }
1318
1319 static int btusb_submit_intr_urb(struct hci_dev *hdev, gfp_t mem_flags)
1320 {
1321         struct btusb_data *data = hci_get_drvdata(hdev);
1322         struct urb *urb;
1323         unsigned char *buf;
1324         unsigned int pipe;
1325         int err, size;
1326
1327         BT_DBG("%s", hdev->name);
1328
1329         if (!data->intr_ep)
1330                 return -ENODEV;
1331
1332         urb = usb_alloc_urb(0, mem_flags);
1333         if (!urb)
1334                 return -ENOMEM;
1335
1336         size = le16_to_cpu(data->intr_ep->wMaxPacketSize);
1337
1338         buf = kmalloc(size, mem_flags);
1339         if (!buf) {
1340                 usb_free_urb(urb);
1341                 return -ENOMEM;
1342         }
1343
1344         pipe = usb_rcvintpipe(data->udev, data->intr_ep->bEndpointAddress);
1345
1346         usb_fill_int_urb(urb, data->udev, pipe, buf, size,
1347                          btusb_intr_complete, hdev, data->intr_ep->bInterval);
1348
1349         urb->transfer_flags |= URB_FREE_BUFFER;
1350
1351         usb_anchor_urb(urb, &data->intr_anchor);
1352
1353         err = usb_submit_urb(urb, mem_flags);
1354         if (err < 0) {
1355                 if (err != -EPERM && err != -ENODEV)
1356                         bt_dev_err(hdev, "urb %p submission failed (%d)",
1357                                    urb, -err);
1358                 if (err != -EPERM)
1359                         hci_cmd_sync_cancel(hdev, -err);
1360                 usb_unanchor_urb(urb);
1361         }
1362
1363         /* Only initialize intr_interval if URB poll sync is enabled */
1364         if (!data->poll_sync)
1365                 goto done;
1366
1367         /* The units are frames (milliseconds) for full and low speed devices,
1368          * and microframes (1/8 millisecond) for highspeed and SuperSpeed
1369          * devices.
1370          *
1371          * This is done once on open/resume so it shouldn't change even if
1372          * force_poll_sync changes.
1373          */
1374         switch (urb->dev->speed) {
1375         case USB_SPEED_SUPER_PLUS:
1376         case USB_SPEED_SUPER:   /* units are 125us */
1377                 data->intr_interval = usecs_to_jiffies(urb->interval * 125);
1378                 break;
1379         default:
1380                 data->intr_interval = msecs_to_jiffies(urb->interval);
1381                 break;
1382         }
1383
1384 done:
1385         usb_free_urb(urb);
1386
1387         return err;
1388 }
1389
1390 static void btusb_bulk_complete(struct urb *urb)
1391 {
1392         struct hci_dev *hdev = urb->context;
1393         struct btusb_data *data = hci_get_drvdata(hdev);
1394         int err;
1395
1396         BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
1397                urb->actual_length);
1398
1399         if (!test_bit(HCI_RUNNING, &hdev->flags))
1400                 return;
1401
1402         if (urb->status == 0) {
1403                 hdev->stat.byte_rx += urb->actual_length;
1404
1405                 if (data->recv_bulk(data, urb->transfer_buffer,
1406                                     urb->actual_length) < 0) {
1407                         bt_dev_err(hdev, "corrupted ACL packet");
1408                         hdev->stat.err_rx++;
1409                 }
1410         } else if (urb->status == -ENOENT) {
1411                 /* Avoid suspend failed when usb_kill_urb */
1412                 return;
1413         }
1414
1415         if (!test_bit(BTUSB_BULK_RUNNING, &data->flags))
1416                 return;
1417
1418         usb_anchor_urb(urb, &data->bulk_anchor);
1419         usb_mark_last_busy(data->udev);
1420
1421         err = usb_submit_urb(urb, GFP_ATOMIC);
1422         if (err < 0) {
1423                 /* -EPERM: urb is being killed;
1424                  * -ENODEV: device got disconnected
1425                  */
1426                 if (err != -EPERM && err != -ENODEV)
1427                         bt_dev_err(hdev, "urb %p failed to resubmit (%d)",
1428                                    urb, -err);
1429                 usb_unanchor_urb(urb);
1430         }
1431 }
1432
1433 static int btusb_submit_bulk_urb(struct hci_dev *hdev, gfp_t mem_flags)
1434 {
1435         struct btusb_data *data = hci_get_drvdata(hdev);
1436         struct urb *urb;
1437         unsigned char *buf;
1438         unsigned int pipe;
1439         int err, size = HCI_MAX_FRAME_SIZE;
1440
1441         BT_DBG("%s", hdev->name);
1442
1443         if (!data->bulk_rx_ep)
1444                 return -ENODEV;
1445
1446         urb = usb_alloc_urb(0, mem_flags);
1447         if (!urb)
1448                 return -ENOMEM;
1449
1450         buf = kmalloc(size, mem_flags);
1451         if (!buf) {
1452                 usb_free_urb(urb);
1453                 return -ENOMEM;
1454         }
1455
1456         pipe = usb_rcvbulkpipe(data->udev, data->bulk_rx_ep->bEndpointAddress);
1457
1458         usb_fill_bulk_urb(urb, data->udev, pipe, buf, size,
1459                           btusb_bulk_complete, hdev);
1460
1461         urb->transfer_flags |= URB_FREE_BUFFER;
1462
1463         usb_mark_last_busy(data->udev);
1464         usb_anchor_urb(urb, &data->bulk_anchor);
1465
1466         err = usb_submit_urb(urb, mem_flags);
1467         if (err < 0) {
1468                 if (err != -EPERM && err != -ENODEV)
1469                         bt_dev_err(hdev, "urb %p submission failed (%d)",
1470                                    urb, -err);
1471                 usb_unanchor_urb(urb);
1472         }
1473
1474         usb_free_urb(urb);
1475
1476         return err;
1477 }
1478
1479 static void btusb_isoc_complete(struct urb *urb)
1480 {
1481         struct hci_dev *hdev = urb->context;
1482         struct btusb_data *data = hci_get_drvdata(hdev);
1483         int i, err;
1484
1485         BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
1486                urb->actual_length);
1487
1488         if (!test_bit(HCI_RUNNING, &hdev->flags))
1489                 return;
1490
1491         if (urb->status == 0) {
1492                 for (i = 0; i < urb->number_of_packets; i++) {
1493                         unsigned int offset = urb->iso_frame_desc[i].offset;
1494                         unsigned int length = urb->iso_frame_desc[i].actual_length;
1495
1496                         if (urb->iso_frame_desc[i].status)
1497                                 continue;
1498
1499                         hdev->stat.byte_rx += length;
1500
1501                         if (btusb_recv_isoc(data, urb->transfer_buffer + offset,
1502                                             length) < 0) {
1503                                 bt_dev_err(hdev, "corrupted SCO packet");
1504                                 hdev->stat.err_rx++;
1505                         }
1506                 }
1507         } else if (urb->status == -ENOENT) {
1508                 /* Avoid suspend failed when usb_kill_urb */
1509                 return;
1510         }
1511
1512         if (!test_bit(BTUSB_ISOC_RUNNING, &data->flags))
1513                 return;
1514
1515         usb_anchor_urb(urb, &data->isoc_anchor);
1516
1517         err = usb_submit_urb(urb, GFP_ATOMIC);
1518         if (err < 0) {
1519                 /* -EPERM: urb is being killed;
1520                  * -ENODEV: device got disconnected
1521                  */
1522                 if (err != -EPERM && err != -ENODEV)
1523                         bt_dev_err(hdev, "urb %p failed to resubmit (%d)",
1524                                    urb, -err);
1525                 usb_unanchor_urb(urb);
1526         }
1527 }
1528
1529 static inline void __fill_isoc_descriptor_msbc(struct urb *urb, int len,
1530                                                int mtu, struct btusb_data *data)
1531 {
1532         int i = 0, offset = 0;
1533         unsigned int interval;
1534
1535         BT_DBG("len %d mtu %d", len, mtu);
1536
1537         /* For mSBC ALT 6 settings some chips need to transmit the data
1538          * continuously without the zero length of USB packets.
1539          */
1540         if (test_bit(BTUSB_ALT6_CONTINUOUS_TX, &data->flags))
1541                 goto ignore_usb_alt6_packet_flow;
1542
1543         /* For mSBC ALT 6 setting the host will send the packet at continuous
1544          * flow. As per core spec 5, vol 4, part B, table 2.1. For ALT setting
1545          * 6 the HCI PACKET INTERVAL should be 7.5ms for every usb packets.
1546          * To maintain the rate we send 63bytes of usb packets alternatively for
1547          * 7ms and 8ms to maintain the rate as 7.5ms.
1548          */
1549         if (data->usb_alt6_packet_flow) {
1550                 interval = 7;
1551                 data->usb_alt6_packet_flow = false;
1552         } else {
1553                 interval = 6;
1554                 data->usb_alt6_packet_flow = true;
1555         }
1556
1557         for (i = 0; i < interval; i++) {
1558                 urb->iso_frame_desc[i].offset = offset;
1559                 urb->iso_frame_desc[i].length = offset;
1560         }
1561
1562 ignore_usb_alt6_packet_flow:
1563         if (len && i < BTUSB_MAX_ISOC_FRAMES) {
1564                 urb->iso_frame_desc[i].offset = offset;
1565                 urb->iso_frame_desc[i].length = len;
1566                 i++;
1567         }
1568
1569         urb->number_of_packets = i;
1570 }
1571
1572 static inline void __fill_isoc_descriptor(struct urb *urb, int len, int mtu)
1573 {
1574         int i, offset = 0;
1575
1576         BT_DBG("len %d mtu %d", len, mtu);
1577
1578         for (i = 0; i < BTUSB_MAX_ISOC_FRAMES && len >= mtu;
1579                                         i++, offset += mtu, len -= mtu) {
1580                 urb->iso_frame_desc[i].offset = offset;
1581                 urb->iso_frame_desc[i].length = mtu;
1582         }
1583
1584         if (len && i < BTUSB_MAX_ISOC_FRAMES) {
1585                 urb->iso_frame_desc[i].offset = offset;
1586                 urb->iso_frame_desc[i].length = len;
1587                 i++;
1588         }
1589
1590         urb->number_of_packets = i;
1591 }
1592
1593 static int btusb_submit_isoc_urb(struct hci_dev *hdev, gfp_t mem_flags)
1594 {
1595         struct btusb_data *data = hci_get_drvdata(hdev);
1596         struct urb *urb;
1597         unsigned char *buf;
1598         unsigned int pipe;
1599         int err, size;
1600
1601         BT_DBG("%s", hdev->name);
1602
1603         if (!data->isoc_rx_ep)
1604                 return -ENODEV;
1605
1606         urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, mem_flags);
1607         if (!urb)
1608                 return -ENOMEM;
1609
1610         size = le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize) *
1611                                                 BTUSB_MAX_ISOC_FRAMES;
1612
1613         buf = kmalloc(size, mem_flags);
1614         if (!buf) {
1615                 usb_free_urb(urb);
1616                 return -ENOMEM;
1617         }
1618
1619         pipe = usb_rcvisocpipe(data->udev, data->isoc_rx_ep->bEndpointAddress);
1620
1621         usb_fill_int_urb(urb, data->udev, pipe, buf, size, btusb_isoc_complete,
1622                          hdev, data->isoc_rx_ep->bInterval);
1623
1624         urb->transfer_flags = URB_FREE_BUFFER | URB_ISO_ASAP;
1625
1626         __fill_isoc_descriptor(urb, size,
1627                                le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize));
1628
1629         usb_anchor_urb(urb, &data->isoc_anchor);
1630
1631         err = usb_submit_urb(urb, mem_flags);
1632         if (err < 0) {
1633                 if (err != -EPERM && err != -ENODEV)
1634                         bt_dev_err(hdev, "urb %p submission failed (%d)",
1635                                    urb, -err);
1636                 usb_unanchor_urb(urb);
1637         }
1638
1639         usb_free_urb(urb);
1640
1641         return err;
1642 }
1643
1644 static void btusb_diag_complete(struct urb *urb)
1645 {
1646         struct hci_dev *hdev = urb->context;
1647         struct btusb_data *data = hci_get_drvdata(hdev);
1648         int err;
1649
1650         BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
1651                urb->actual_length);
1652
1653         if (urb->status == 0) {
1654                 struct sk_buff *skb;
1655
1656                 skb = bt_skb_alloc(urb->actual_length, GFP_ATOMIC);
1657                 if (skb) {
1658                         skb_put_data(skb, urb->transfer_buffer,
1659                                      urb->actual_length);
1660                         hci_recv_diag(hdev, skb);
1661                 }
1662         } else if (urb->status == -ENOENT) {
1663                 /* Avoid suspend failed when usb_kill_urb */
1664                 return;
1665         }
1666
1667         if (!test_bit(BTUSB_DIAG_RUNNING, &data->flags))
1668                 return;
1669
1670         usb_anchor_urb(urb, &data->diag_anchor);
1671         usb_mark_last_busy(data->udev);
1672
1673         err = usb_submit_urb(urb, GFP_ATOMIC);
1674         if (err < 0) {
1675                 /* -EPERM: urb is being killed;
1676                  * -ENODEV: device got disconnected
1677                  */
1678                 if (err != -EPERM && err != -ENODEV)
1679                         bt_dev_err(hdev, "urb %p failed to resubmit (%d)",
1680                                    urb, -err);
1681                 usb_unanchor_urb(urb);
1682         }
1683 }
1684
1685 static int btusb_submit_diag_urb(struct hci_dev *hdev, gfp_t mem_flags)
1686 {
1687         struct btusb_data *data = hci_get_drvdata(hdev);
1688         struct urb *urb;
1689         unsigned char *buf;
1690         unsigned int pipe;
1691         int err, size = HCI_MAX_FRAME_SIZE;
1692
1693         BT_DBG("%s", hdev->name);
1694
1695         if (!data->diag_rx_ep)
1696                 return -ENODEV;
1697
1698         urb = usb_alloc_urb(0, mem_flags);
1699         if (!urb)
1700                 return -ENOMEM;
1701
1702         buf = kmalloc(size, mem_flags);
1703         if (!buf) {
1704                 usb_free_urb(urb);
1705                 return -ENOMEM;
1706         }
1707
1708         pipe = usb_rcvbulkpipe(data->udev, data->diag_rx_ep->bEndpointAddress);
1709
1710         usb_fill_bulk_urb(urb, data->udev, pipe, buf, size,
1711                           btusb_diag_complete, hdev);
1712
1713         urb->transfer_flags |= URB_FREE_BUFFER;
1714
1715         usb_mark_last_busy(data->udev);
1716         usb_anchor_urb(urb, &data->diag_anchor);
1717
1718         err = usb_submit_urb(urb, mem_flags);
1719         if (err < 0) {
1720                 if (err != -EPERM && err != -ENODEV)
1721                         bt_dev_err(hdev, "urb %p submission failed (%d)",
1722                                    urb, -err);
1723                 usb_unanchor_urb(urb);
1724         }
1725
1726         usb_free_urb(urb);
1727
1728         return err;
1729 }
1730
1731 static void btusb_tx_complete(struct urb *urb)
1732 {
1733         struct sk_buff *skb = urb->context;
1734         struct hci_dev *hdev = (struct hci_dev *)skb->dev;
1735         struct btusb_data *data = hci_get_drvdata(hdev);
1736         unsigned long flags;
1737
1738         BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
1739                urb->actual_length);
1740
1741         if (!test_bit(HCI_RUNNING, &hdev->flags))
1742                 goto done;
1743
1744         if (!urb->status) {
1745                 hdev->stat.byte_tx += urb->transfer_buffer_length;
1746         } else {
1747                 if (hci_skb_pkt_type(skb) == HCI_COMMAND_PKT)
1748                         hci_cmd_sync_cancel(hdev, -urb->status);
1749                 hdev->stat.err_tx++;
1750         }
1751
1752 done:
1753         spin_lock_irqsave(&data->txlock, flags);
1754         data->tx_in_flight--;
1755         spin_unlock_irqrestore(&data->txlock, flags);
1756
1757         kfree(urb->setup_packet);
1758
1759         kfree_skb(skb);
1760 }
1761
1762 static void btusb_isoc_tx_complete(struct urb *urb)
1763 {
1764         struct sk_buff *skb = urb->context;
1765         struct hci_dev *hdev = (struct hci_dev *)skb->dev;
1766
1767         BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
1768                urb->actual_length);
1769
1770         if (!test_bit(HCI_RUNNING, &hdev->flags))
1771                 goto done;
1772
1773         if (!urb->status)
1774                 hdev->stat.byte_tx += urb->transfer_buffer_length;
1775         else
1776                 hdev->stat.err_tx++;
1777
1778 done:
1779         kfree(urb->setup_packet);
1780
1781         kfree_skb(skb);
1782 }
1783
1784 static int btusb_open(struct hci_dev *hdev)
1785 {
1786         struct btusb_data *data = hci_get_drvdata(hdev);
1787         int err;
1788
1789         BT_DBG("%s", hdev->name);
1790
1791         err = usb_autopm_get_interface(data->intf);
1792         if (err < 0)
1793                 return err;
1794
1795         /* Patching USB firmware files prior to starting any URBs of HCI path
1796          * It is more safe to use USB bulk channel for downloading USB patch
1797          */
1798         if (data->setup_on_usb) {
1799                 err = data->setup_on_usb(hdev);
1800                 if (err < 0)
1801                         goto setup_fail;
1802         }
1803
1804         data->intf->needs_remote_wakeup = 1;
1805
1806         if (test_and_set_bit(BTUSB_INTR_RUNNING, &data->flags))
1807                 goto done;
1808
1809         err = btusb_submit_intr_urb(hdev, GFP_KERNEL);
1810         if (err < 0)
1811                 goto failed;
1812
1813         err = btusb_submit_bulk_urb(hdev, GFP_KERNEL);
1814         if (err < 0) {
1815                 usb_kill_anchored_urbs(&data->intr_anchor);
1816                 goto failed;
1817         }
1818
1819         set_bit(BTUSB_BULK_RUNNING, &data->flags);
1820         btusb_submit_bulk_urb(hdev, GFP_KERNEL);
1821
1822         if (data->diag) {
1823                 if (!btusb_submit_diag_urb(hdev, GFP_KERNEL))
1824                         set_bit(BTUSB_DIAG_RUNNING, &data->flags);
1825         }
1826
1827 done:
1828         usb_autopm_put_interface(data->intf);
1829         return 0;
1830
1831 failed:
1832         clear_bit(BTUSB_INTR_RUNNING, &data->flags);
1833 setup_fail:
1834         usb_autopm_put_interface(data->intf);
1835         return err;
1836 }
1837
1838 static void btusb_stop_traffic(struct btusb_data *data)
1839 {
1840         usb_kill_anchored_urbs(&data->intr_anchor);
1841         usb_kill_anchored_urbs(&data->bulk_anchor);
1842         usb_kill_anchored_urbs(&data->isoc_anchor);
1843         usb_kill_anchored_urbs(&data->diag_anchor);
1844         usb_kill_anchored_urbs(&data->ctrl_anchor);
1845 }
1846
1847 static int btusb_close(struct hci_dev *hdev)
1848 {
1849         struct btusb_data *data = hci_get_drvdata(hdev);
1850         int err;
1851
1852         BT_DBG("%s", hdev->name);
1853
1854         cancel_delayed_work(&data->rx_work);
1855         cancel_work_sync(&data->work);
1856         cancel_work_sync(&data->waker);
1857
1858         skb_queue_purge(&data->acl_q);
1859
1860         clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
1861         clear_bit(BTUSB_BULK_RUNNING, &data->flags);
1862         clear_bit(BTUSB_INTR_RUNNING, &data->flags);
1863         clear_bit(BTUSB_DIAG_RUNNING, &data->flags);
1864
1865         btusb_stop_traffic(data);
1866         btusb_free_frags(data);
1867
1868         err = usb_autopm_get_interface(data->intf);
1869         if (err < 0)
1870                 goto failed;
1871
1872         data->intf->needs_remote_wakeup = 0;
1873
1874         /* Enable remote wake up for auto-suspend */
1875         if (test_bit(BTUSB_WAKEUP_AUTOSUSPEND, &data->flags))
1876                 data->intf->needs_remote_wakeup = 1;
1877
1878         usb_autopm_put_interface(data->intf);
1879
1880 failed:
1881         usb_scuttle_anchored_urbs(&data->deferred);
1882         return 0;
1883 }
1884
1885 static int btusb_flush(struct hci_dev *hdev)
1886 {
1887         struct btusb_data *data = hci_get_drvdata(hdev);
1888
1889         BT_DBG("%s", hdev->name);
1890
1891         cancel_delayed_work(&data->rx_work);
1892
1893         skb_queue_purge(&data->acl_q);
1894
1895         usb_kill_anchored_urbs(&data->tx_anchor);
1896         btusb_free_frags(data);
1897
1898         return 0;
1899 }
1900
1901 static struct urb *alloc_ctrl_urb(struct hci_dev *hdev, struct sk_buff *skb)
1902 {
1903         struct btusb_data *data = hci_get_drvdata(hdev);
1904         struct usb_ctrlrequest *dr;
1905         struct urb *urb;
1906         unsigned int pipe;
1907
1908         urb = usb_alloc_urb(0, GFP_KERNEL);
1909         if (!urb)
1910                 return ERR_PTR(-ENOMEM);
1911
1912         dr = kmalloc(sizeof(*dr), GFP_KERNEL);
1913         if (!dr) {
1914                 usb_free_urb(urb);
1915                 return ERR_PTR(-ENOMEM);
1916         }
1917
1918         dr->bRequestType = data->cmdreq_type;
1919         dr->bRequest     = data->cmdreq;
1920         dr->wIndex       = 0;
1921         dr->wValue       = 0;
1922         dr->wLength      = __cpu_to_le16(skb->len);
1923
1924         pipe = usb_sndctrlpipe(data->udev, 0x00);
1925
1926         usb_fill_control_urb(urb, data->udev, pipe, (void *)dr,
1927                              skb->data, skb->len, btusb_tx_complete, skb);
1928
1929         skb->dev = (void *)hdev;
1930
1931         return urb;
1932 }
1933
1934 static struct urb *alloc_bulk_urb(struct hci_dev *hdev, struct sk_buff *skb)
1935 {
1936         struct btusb_data *data = hci_get_drvdata(hdev);
1937         struct urb *urb;
1938         unsigned int pipe;
1939
1940         if (!data->bulk_tx_ep)
1941                 return ERR_PTR(-ENODEV);
1942
1943         urb = usb_alloc_urb(0, GFP_KERNEL);
1944         if (!urb)
1945                 return ERR_PTR(-ENOMEM);
1946
1947         pipe = usb_sndbulkpipe(data->udev, data->bulk_tx_ep->bEndpointAddress);
1948
1949         usb_fill_bulk_urb(urb, data->udev, pipe,
1950                           skb->data, skb->len, btusb_tx_complete, skb);
1951
1952         skb->dev = (void *)hdev;
1953
1954         return urb;
1955 }
1956
1957 static struct urb *alloc_isoc_urb(struct hci_dev *hdev, struct sk_buff *skb)
1958 {
1959         struct btusb_data *data = hci_get_drvdata(hdev);
1960         struct urb *urb;
1961         unsigned int pipe;
1962
1963         if (!data->isoc_tx_ep)
1964                 return ERR_PTR(-ENODEV);
1965
1966         urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, GFP_KERNEL);
1967         if (!urb)
1968                 return ERR_PTR(-ENOMEM);
1969
1970         pipe = usb_sndisocpipe(data->udev, data->isoc_tx_ep->bEndpointAddress);
1971
1972         usb_fill_int_urb(urb, data->udev, pipe,
1973                          skb->data, skb->len, btusb_isoc_tx_complete,
1974                          skb, data->isoc_tx_ep->bInterval);
1975
1976         urb->transfer_flags  = URB_ISO_ASAP;
1977
1978         if (data->isoc_altsetting == 6)
1979                 __fill_isoc_descriptor_msbc(urb, skb->len,
1980                                             le16_to_cpu(data->isoc_tx_ep->wMaxPacketSize),
1981                                             data);
1982         else
1983                 __fill_isoc_descriptor(urb, skb->len,
1984                                        le16_to_cpu(data->isoc_tx_ep->wMaxPacketSize));
1985         skb->dev = (void *)hdev;
1986
1987         return urb;
1988 }
1989
1990 static int submit_tx_urb(struct hci_dev *hdev, struct urb *urb)
1991 {
1992         struct btusb_data *data = hci_get_drvdata(hdev);
1993         int err;
1994
1995         usb_anchor_urb(urb, &data->tx_anchor);
1996
1997         err = usb_submit_urb(urb, GFP_KERNEL);
1998         if (err < 0) {
1999                 if (err != -EPERM && err != -ENODEV)
2000                         bt_dev_err(hdev, "urb %p submission failed (%d)",
2001                                    urb, -err);
2002                 kfree(urb->setup_packet);
2003                 usb_unanchor_urb(urb);
2004         } else {
2005                 usb_mark_last_busy(data->udev);
2006         }
2007
2008         usb_free_urb(urb);
2009         return err;
2010 }
2011
2012 static int submit_or_queue_tx_urb(struct hci_dev *hdev, struct urb *urb)
2013 {
2014         struct btusb_data *data = hci_get_drvdata(hdev);
2015         unsigned long flags;
2016         bool suspending;
2017
2018         spin_lock_irqsave(&data->txlock, flags);
2019         suspending = test_bit(BTUSB_SUSPENDING, &data->flags);
2020         if (!suspending)
2021                 data->tx_in_flight++;
2022         spin_unlock_irqrestore(&data->txlock, flags);
2023
2024         if (!suspending)
2025                 return submit_tx_urb(hdev, urb);
2026
2027         usb_anchor_urb(urb, &data->deferred);
2028         schedule_work(&data->waker);
2029
2030         usb_free_urb(urb);
2031         return 0;
2032 }
2033
2034 static int btusb_send_frame(struct hci_dev *hdev, struct sk_buff *skb)
2035 {
2036         struct urb *urb;
2037
2038         BT_DBG("%s", hdev->name);
2039
2040         switch (hci_skb_pkt_type(skb)) {
2041         case HCI_COMMAND_PKT:
2042                 urb = alloc_ctrl_urb(hdev, skb);
2043                 if (IS_ERR(urb))
2044                         return PTR_ERR(urb);
2045
2046                 hdev->stat.cmd_tx++;
2047                 return submit_or_queue_tx_urb(hdev, urb);
2048
2049         case HCI_ACLDATA_PKT:
2050                 urb = alloc_bulk_urb(hdev, skb);
2051                 if (IS_ERR(urb))
2052                         return PTR_ERR(urb);
2053
2054                 hdev->stat.acl_tx++;
2055                 return submit_or_queue_tx_urb(hdev, urb);
2056
2057         case HCI_SCODATA_PKT:
2058                 if (hci_conn_num(hdev, SCO_LINK) < 1)
2059                         return -ENODEV;
2060
2061                 urb = alloc_isoc_urb(hdev, skb);
2062                 if (IS_ERR(urb))
2063                         return PTR_ERR(urb);
2064
2065                 hdev->stat.sco_tx++;
2066                 return submit_tx_urb(hdev, urb);
2067
2068         case HCI_ISODATA_PKT:
2069                 urb = alloc_bulk_urb(hdev, skb);
2070                 if (IS_ERR(urb))
2071                         return PTR_ERR(urb);
2072
2073                 return submit_or_queue_tx_urb(hdev, urb);
2074         }
2075
2076         return -EILSEQ;
2077 }
2078
2079 static void btusb_notify(struct hci_dev *hdev, unsigned int evt)
2080 {
2081         struct btusb_data *data = hci_get_drvdata(hdev);
2082
2083         BT_DBG("%s evt %d", hdev->name, evt);
2084
2085         if (hci_conn_num(hdev, SCO_LINK) != data->sco_num) {
2086                 data->sco_num = hci_conn_num(hdev, SCO_LINK);
2087                 data->air_mode = evt;
2088                 schedule_work(&data->work);
2089         }
2090 }
2091
2092 static inline int __set_isoc_interface(struct hci_dev *hdev, int altsetting)
2093 {
2094         struct btusb_data *data = hci_get_drvdata(hdev);
2095         struct usb_interface *intf = data->isoc;
2096         struct usb_endpoint_descriptor *ep_desc;
2097         int i, err;
2098
2099         if (!data->isoc)
2100                 return -ENODEV;
2101
2102         err = usb_set_interface(data->udev, data->isoc_ifnum, altsetting);
2103         if (err < 0) {
2104                 bt_dev_err(hdev, "setting interface failed (%d)", -err);
2105                 return err;
2106         }
2107
2108         data->isoc_altsetting = altsetting;
2109
2110         data->isoc_tx_ep = NULL;
2111         data->isoc_rx_ep = NULL;
2112
2113         for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
2114                 ep_desc = &intf->cur_altsetting->endpoint[i].desc;
2115
2116                 if (!data->isoc_tx_ep && usb_endpoint_is_isoc_out(ep_desc)) {
2117                         data->isoc_tx_ep = ep_desc;
2118                         continue;
2119                 }
2120
2121                 if (!data->isoc_rx_ep && usb_endpoint_is_isoc_in(ep_desc)) {
2122                         data->isoc_rx_ep = ep_desc;
2123                         continue;
2124                 }
2125         }
2126
2127         if (!data->isoc_tx_ep || !data->isoc_rx_ep) {
2128                 bt_dev_err(hdev, "invalid SCO descriptors");
2129                 return -ENODEV;
2130         }
2131
2132         return 0;
2133 }
2134
2135 static int btusb_switch_alt_setting(struct hci_dev *hdev, int new_alts)
2136 {
2137         struct btusb_data *data = hci_get_drvdata(hdev);
2138         int err;
2139
2140         if (data->isoc_altsetting != new_alts) {
2141                 unsigned long flags;
2142
2143                 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
2144                 usb_kill_anchored_urbs(&data->isoc_anchor);
2145
2146                 /* When isochronous alternate setting needs to be
2147                  * changed, because SCO connection has been added
2148                  * or removed, a packet fragment may be left in the
2149                  * reassembling state. This could lead to wrongly
2150                  * assembled fragments.
2151                  *
2152                  * Clear outstanding fragment when selecting a new
2153                  * alternate setting.
2154                  */
2155                 spin_lock_irqsave(&data->rxlock, flags);
2156                 kfree_skb(data->sco_skb);
2157                 data->sco_skb = NULL;
2158                 spin_unlock_irqrestore(&data->rxlock, flags);
2159
2160                 err = __set_isoc_interface(hdev, new_alts);
2161                 if (err < 0)
2162                         return err;
2163         }
2164
2165         if (!test_and_set_bit(BTUSB_ISOC_RUNNING, &data->flags)) {
2166                 if (btusb_submit_isoc_urb(hdev, GFP_KERNEL) < 0)
2167                         clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
2168                 else
2169                         btusb_submit_isoc_urb(hdev, GFP_KERNEL);
2170         }
2171
2172         return 0;
2173 }
2174
2175 static struct usb_host_interface *btusb_find_altsetting(struct btusb_data *data,
2176                                                         int alt)
2177 {
2178         struct usb_interface *intf = data->isoc;
2179         int i;
2180
2181         BT_DBG("Looking for Alt no :%d", alt);
2182
2183         if (!intf)
2184                 return NULL;
2185
2186         for (i = 0; i < intf->num_altsetting; i++) {
2187                 if (intf->altsetting[i].desc.bAlternateSetting == alt)
2188                         return &intf->altsetting[i];
2189         }
2190
2191         return NULL;
2192 }
2193
2194 static void btusb_work(struct work_struct *work)
2195 {
2196         struct btusb_data *data = container_of(work, struct btusb_data, work);
2197         struct hci_dev *hdev = data->hdev;
2198         int new_alts = 0;
2199         int err;
2200
2201         if (data->sco_num > 0) {
2202                 if (!test_bit(BTUSB_DID_ISO_RESUME, &data->flags)) {
2203                         err = usb_autopm_get_interface(data->isoc ? data->isoc : data->intf);
2204                         if (err < 0) {
2205                                 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
2206                                 usb_kill_anchored_urbs(&data->isoc_anchor);
2207                                 return;
2208                         }
2209
2210                         set_bit(BTUSB_DID_ISO_RESUME, &data->flags);
2211                 }
2212
2213                 if (data->air_mode == HCI_NOTIFY_ENABLE_SCO_CVSD) {
2214                         if (hdev->voice_setting & 0x0020) {
2215                                 static const int alts[3] = { 2, 4, 5 };
2216
2217                                 new_alts = alts[data->sco_num - 1];
2218                         } else {
2219                                 new_alts = data->sco_num;
2220                         }
2221                 } else if (data->air_mode == HCI_NOTIFY_ENABLE_SCO_TRANSP) {
2222                         /* Bluetooth USB spec recommends alt 6 (63 bytes), but
2223                          * many adapters do not support it.  Alt 1 appears to
2224                          * work for all adapters that do not have alt 6, and
2225                          * which work with WBS at all.  Some devices prefer
2226                          * alt 3 (HCI payload >= 60 Bytes let air packet
2227                          * data satisfy 60 bytes), requiring
2228                          * MTU >= 3 (packets) * 25 (size) - 3 (headers) = 72
2229                          * see also Core spec 5, vol 4, B 2.1.1 & Table 2.1.
2230                          */
2231                         if (btusb_find_altsetting(data, 6))
2232                                 new_alts = 6;
2233                         else if (btusb_find_altsetting(data, 3) &&
2234                                  hdev->sco_mtu >= 72 &&
2235                                  test_bit(BTUSB_USE_ALT3_FOR_WBS, &data->flags))
2236                                 new_alts = 3;
2237                         else
2238                                 new_alts = 1;
2239                 }
2240
2241                 if (btusb_switch_alt_setting(hdev, new_alts) < 0)
2242                         bt_dev_err(hdev, "set USB alt:(%d) failed!", new_alts);
2243         } else {
2244                 usb_kill_anchored_urbs(&data->isoc_anchor);
2245
2246                 if (test_and_clear_bit(BTUSB_ISOC_RUNNING, &data->flags))
2247                         __set_isoc_interface(hdev, 0);
2248
2249                 if (test_and_clear_bit(BTUSB_DID_ISO_RESUME, &data->flags))
2250                         usb_autopm_put_interface(data->isoc ? data->isoc : data->intf);
2251         }
2252 }
2253
2254 static void btusb_waker(struct work_struct *work)
2255 {
2256         struct btusb_data *data = container_of(work, struct btusb_data, waker);
2257         int err;
2258
2259         err = usb_autopm_get_interface(data->intf);
2260         if (err < 0)
2261                 return;
2262
2263         usb_autopm_put_interface(data->intf);
2264 }
2265
2266 static void btusb_rx_work(struct work_struct *work)
2267 {
2268         struct btusb_data *data = container_of(work, struct btusb_data,
2269                                                rx_work.work);
2270         struct sk_buff *skb;
2271
2272         /* Dequeue ACL data received during the interval */
2273         while ((skb = skb_dequeue(&data->acl_q)))
2274                 data->recv_acl(data->hdev, skb);
2275 }
2276
2277 static int btusb_setup_bcm92035(struct hci_dev *hdev)
2278 {
2279         struct sk_buff *skb;
2280         u8 val = 0x00;
2281
2282         BT_DBG("%s", hdev->name);
2283
2284         skb = __hci_cmd_sync(hdev, 0xfc3b, 1, &val, HCI_INIT_TIMEOUT);
2285         if (IS_ERR(skb))
2286                 bt_dev_err(hdev, "BCM92035 command failed (%ld)", PTR_ERR(skb));
2287         else
2288                 kfree_skb(skb);
2289
2290         return 0;
2291 }
2292
2293 static int btusb_setup_csr(struct hci_dev *hdev)
2294 {
2295         struct btusb_data *data = hci_get_drvdata(hdev);
2296         u16 bcdDevice = le16_to_cpu(data->udev->descriptor.bcdDevice);
2297         struct hci_rp_read_local_version *rp;
2298         struct sk_buff *skb;
2299         bool is_fake = false;
2300         int ret;
2301
2302         BT_DBG("%s", hdev->name);
2303
2304         skb = __hci_cmd_sync(hdev, HCI_OP_READ_LOCAL_VERSION, 0, NULL,
2305                              HCI_INIT_TIMEOUT);
2306         if (IS_ERR(skb)) {
2307                 int err = PTR_ERR(skb);
2308                 bt_dev_err(hdev, "CSR: Local version failed (%d)", err);
2309                 return err;
2310         }
2311
2312         rp = skb_pull_data(skb, sizeof(*rp));
2313         if (!rp) {
2314                 bt_dev_err(hdev, "CSR: Local version length mismatch");
2315                 kfree_skb(skb);
2316                 return -EIO;
2317         }
2318
2319         bt_dev_info(hdev, "CSR: Setting up dongle with HCI ver=%u rev=%04x",
2320                     rp->hci_ver, le16_to_cpu(rp->hci_rev));
2321
2322         bt_dev_info(hdev, "LMP ver=%u subver=%04x; manufacturer=%u",
2323                     rp->lmp_ver, le16_to_cpu(rp->lmp_subver),
2324                     le16_to_cpu(rp->manufacturer));
2325
2326         /* Detect a wide host of Chinese controllers that aren't CSR.
2327          *
2328          * Known fake bcdDevices: 0x0100, 0x0134, 0x1915, 0x2520, 0x7558, 0x8891
2329          *
2330          * The main thing they have in common is that these are really popular low-cost
2331          * options that support newer Bluetooth versions but rely on heavy VID/PID
2332          * squatting of this poor old Bluetooth 1.1 device. Even sold as such.
2333          *
2334          * We detect actual CSR devices by checking that the HCI manufacturer code
2335          * is Cambridge Silicon Radio (10) and ensuring that LMP sub-version and
2336          * HCI rev values always match. As they both store the firmware number.
2337          */
2338         if (le16_to_cpu(rp->manufacturer) != 10 ||
2339             le16_to_cpu(rp->hci_rev) != le16_to_cpu(rp->lmp_subver))
2340                 is_fake = true;
2341
2342         /* Known legit CSR firmware build numbers and their supported BT versions:
2343          * - 1.1 (0x1) -> 0x0073, 0x020d, 0x033c, 0x034e
2344          * - 1.2 (0x2) ->                 0x04d9, 0x0529
2345          * - 2.0 (0x3) ->         0x07a6, 0x07ad, 0x0c5c
2346          * - 2.1 (0x4) ->         0x149c, 0x1735, 0x1899 (0x1899 is a BlueCore4-External)
2347          * - 4.0 (0x6) ->         0x1d86, 0x2031, 0x22bb
2348          *
2349          * e.g. Real CSR dongles with LMP subversion 0x73 are old enough that
2350          *      support BT 1.1 only; so it's a dead giveaway when some
2351          *      third-party BT 4.0 dongle reuses it.
2352          */
2353         else if (le16_to_cpu(rp->lmp_subver) <= 0x034e &&
2354                  rp->hci_ver > BLUETOOTH_VER_1_1)
2355                 is_fake = true;
2356
2357         else if (le16_to_cpu(rp->lmp_subver) <= 0x0529 &&
2358                  rp->hci_ver > BLUETOOTH_VER_1_2)
2359                 is_fake = true;
2360
2361         else if (le16_to_cpu(rp->lmp_subver) <= 0x0c5c &&
2362                  rp->hci_ver > BLUETOOTH_VER_2_0)
2363                 is_fake = true;
2364
2365         else if (le16_to_cpu(rp->lmp_subver) <= 0x1899 &&
2366                  rp->hci_ver > BLUETOOTH_VER_2_1)
2367                 is_fake = true;
2368
2369         else if (le16_to_cpu(rp->lmp_subver) <= 0x22bb &&
2370                  rp->hci_ver > BLUETOOTH_VER_4_0)
2371                 is_fake = true;
2372
2373         /* Other clones which beat all the above checks */
2374         else if (bcdDevice == 0x0134 &&
2375                  le16_to_cpu(rp->lmp_subver) == 0x0c5c &&
2376                  rp->hci_ver == BLUETOOTH_VER_2_0)
2377                 is_fake = true;
2378
2379         if (is_fake) {
2380                 bt_dev_warn(hdev, "CSR: Unbranded CSR clone detected; adding workarounds and force-suspending once...");
2381
2382                 /* Generally these clones have big discrepancies between
2383                  * advertised features and what's actually supported.
2384                  * Probably will need to be expanded in the future;
2385                  * without these the controller will lock up.
2386                  */
2387                 set_bit(HCI_QUIRK_BROKEN_STORED_LINK_KEY, &hdev->quirks);
2388                 set_bit(HCI_QUIRK_BROKEN_ERR_DATA_REPORTING, &hdev->quirks);
2389                 set_bit(HCI_QUIRK_BROKEN_FILTER_CLEAR_ALL, &hdev->quirks);
2390                 set_bit(HCI_QUIRK_NO_SUSPEND_NOTIFIER, &hdev->quirks);
2391
2392                 /* Clear the reset quirk since this is not an actual
2393                  * early Bluetooth 1.1 device from CSR.
2394                  */
2395                 clear_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
2396                 clear_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks);
2397
2398                 /*
2399                  * Special workaround for these BT 4.0 chip clones, and potentially more:
2400                  *
2401                  * - 0x0134: a Barrot 8041a02                 (HCI rev: 0x0810 sub: 0x1012)
2402                  * - 0x7558: IC markings FR3191AHAL 749H15143 (HCI rev/sub-version: 0x0709)
2403                  *
2404                  * These controllers are really messed-up.
2405                  *
2406                  * 1. Their bulk RX endpoint will never report any data unless
2407                  *    the device was suspended at least once (yes, really).
2408                  * 2. They will not wakeup when autosuspended and receiving data
2409                  *    on their bulk RX endpoint from e.g. a keyboard or mouse
2410                  *    (IOW remote-wakeup support is broken for the bulk endpoint).
2411                  *
2412                  * To fix 1. enable runtime-suspend, force-suspend the
2413                  * HCI and then wake-it up by disabling runtime-suspend.
2414                  *
2415                  * To fix 2. clear the HCI's can_wake flag, this way the HCI
2416                  * will still be autosuspended when it is not open.
2417                  *
2418                  * --
2419                  *
2420                  * Because these are widespread problems we prefer generic solutions; so
2421                  * apply this initialization quirk to every controller that gets here,
2422                  * it should be harmless. The alternative is to not work at all.
2423                  */
2424                 pm_runtime_allow(&data->udev->dev);
2425
2426                 ret = pm_runtime_suspend(&data->udev->dev);
2427                 if (ret >= 0)
2428                         msleep(200);
2429                 else
2430                         bt_dev_warn(hdev, "CSR: Couldn't suspend the device for our Barrot 8041a02 receive-issue workaround");
2431
2432                 pm_runtime_forbid(&data->udev->dev);
2433
2434                 device_set_wakeup_capable(&data->udev->dev, false);
2435
2436                 /* Re-enable autosuspend if this was requested */
2437                 if (enable_autosuspend)
2438                         usb_enable_autosuspend(data->udev);
2439         }
2440
2441         kfree_skb(skb);
2442
2443         return 0;
2444 }
2445
2446 static int inject_cmd_complete(struct hci_dev *hdev, __u16 opcode)
2447 {
2448         struct sk_buff *skb;
2449         struct hci_event_hdr *hdr;
2450         struct hci_ev_cmd_complete *evt;
2451
2452         skb = bt_skb_alloc(sizeof(*hdr) + sizeof(*evt) + 1, GFP_KERNEL);
2453         if (!skb)
2454                 return -ENOMEM;
2455
2456         hdr = skb_put(skb, sizeof(*hdr));
2457         hdr->evt = HCI_EV_CMD_COMPLETE;
2458         hdr->plen = sizeof(*evt) + 1;
2459
2460         evt = skb_put(skb, sizeof(*evt));
2461         evt->ncmd = 0x01;
2462         evt->opcode = cpu_to_le16(opcode);
2463
2464         skb_put_u8(skb, 0x00);
2465
2466         hci_skb_pkt_type(skb) = HCI_EVENT_PKT;
2467
2468         return hci_recv_frame(hdev, skb);
2469 }
2470
2471 static int btusb_recv_bulk_intel(struct btusb_data *data, void *buffer,
2472                                  int count)
2473 {
2474         struct hci_dev *hdev = data->hdev;
2475
2476         /* When the device is in bootloader mode, then it can send
2477          * events via the bulk endpoint. These events are treated the
2478          * same way as the ones received from the interrupt endpoint.
2479          */
2480         if (btintel_test_flag(hdev, INTEL_BOOTLOADER))
2481                 return btusb_recv_intr(data, buffer, count);
2482
2483         return btusb_recv_bulk(data, buffer, count);
2484 }
2485
2486 static int btusb_intel_diagnostics(struct hci_dev *hdev, struct sk_buff *skb)
2487 {
2488         struct intel_tlv *tlv = (void *)&skb->data[5];
2489
2490         /* The first event is always an event type TLV */
2491         if (tlv->type != INTEL_TLV_TYPE_ID)
2492                 goto recv_frame;
2493
2494         switch (tlv->val[0]) {
2495         case INTEL_TLV_SYSTEM_EXCEPTION:
2496         case INTEL_TLV_FATAL_EXCEPTION:
2497         case INTEL_TLV_DEBUG_EXCEPTION:
2498         case INTEL_TLV_TEST_EXCEPTION:
2499                 /* Generate devcoredump from exception */
2500                 if (!hci_devcd_init(hdev, skb->len)) {
2501                         hci_devcd_append(hdev, skb);
2502                         hci_devcd_complete(hdev);
2503                 } else {
2504                         bt_dev_err(hdev, "Failed to generate devcoredump");
2505                         kfree_skb(skb);
2506                 }
2507                 return 0;
2508         default:
2509                 bt_dev_err(hdev, "Invalid exception type %02X", tlv->val[0]);
2510         }
2511
2512 recv_frame:
2513         return hci_recv_frame(hdev, skb);
2514 }
2515
2516 static int btusb_recv_event_intel(struct hci_dev *hdev, struct sk_buff *skb)
2517 {
2518         struct hci_event_hdr *hdr = (void *)skb->data;
2519         const char diagnostics_hdr[] = { 0x87, 0x80, 0x03 };
2520
2521         if (skb->len > HCI_EVENT_HDR_SIZE && hdr->evt == 0xff &&
2522             hdr->plen > 0) {
2523                 const void *ptr = skb->data + HCI_EVENT_HDR_SIZE + 1;
2524                 unsigned int len = skb->len - HCI_EVENT_HDR_SIZE - 1;
2525
2526                 if (btintel_test_flag(hdev, INTEL_BOOTLOADER)) {
2527                         switch (skb->data[2]) {
2528                         case 0x02:
2529                                 /* When switching to the operational firmware
2530                                  * the device sends a vendor specific event
2531                                  * indicating that the bootup completed.
2532                                  */
2533                                 btintel_bootup(hdev, ptr, len);
2534                                 break;
2535                         case 0x06:
2536                                 /* When the firmware loading completes the
2537                                  * device sends out a vendor specific event
2538                                  * indicating the result of the firmware
2539                                  * loading.
2540                                  */
2541                                 btintel_secure_send_result(hdev, ptr, len);
2542                                 break;
2543                         }
2544                 }
2545
2546                 /* Handle all diagnostics events separately. May still call
2547                  * hci_recv_frame.
2548                  */
2549                 if (len >= sizeof(diagnostics_hdr) &&
2550                     memcmp(&skb->data[2], diagnostics_hdr,
2551                            sizeof(diagnostics_hdr)) == 0) {
2552                         return btusb_intel_diagnostics(hdev, skb);
2553                 }
2554         }
2555
2556         return hci_recv_frame(hdev, skb);
2557 }
2558
2559 static int btusb_send_frame_intel(struct hci_dev *hdev, struct sk_buff *skb)
2560 {
2561         struct urb *urb;
2562
2563         BT_DBG("%s", hdev->name);
2564
2565         switch (hci_skb_pkt_type(skb)) {
2566         case HCI_COMMAND_PKT:
2567                 if (btintel_test_flag(hdev, INTEL_BOOTLOADER)) {
2568                         struct hci_command_hdr *cmd = (void *)skb->data;
2569                         __u16 opcode = le16_to_cpu(cmd->opcode);
2570
2571                         /* When in bootloader mode and the command 0xfc09
2572                          * is received, it needs to be send down the
2573                          * bulk endpoint. So allocate a bulk URB instead.
2574                          */
2575                         if (opcode == 0xfc09)
2576                                 urb = alloc_bulk_urb(hdev, skb);
2577                         else
2578                                 urb = alloc_ctrl_urb(hdev, skb);
2579
2580                         /* When the 0xfc01 command is issued to boot into
2581                          * the operational firmware, it will actually not
2582                          * send a command complete event. To keep the flow
2583                          * control working inject that event here.
2584                          */
2585                         if (opcode == 0xfc01)
2586                                 inject_cmd_complete(hdev, opcode);
2587                 } else {
2588                         urb = alloc_ctrl_urb(hdev, skb);
2589                 }
2590                 if (IS_ERR(urb))
2591                         return PTR_ERR(urb);
2592
2593                 hdev->stat.cmd_tx++;
2594                 return submit_or_queue_tx_urb(hdev, urb);
2595
2596         case HCI_ACLDATA_PKT:
2597                 urb = alloc_bulk_urb(hdev, skb);
2598                 if (IS_ERR(urb))
2599                         return PTR_ERR(urb);
2600
2601                 hdev->stat.acl_tx++;
2602                 return submit_or_queue_tx_urb(hdev, urb);
2603
2604         case HCI_SCODATA_PKT:
2605                 if (hci_conn_num(hdev, SCO_LINK) < 1)
2606                         return -ENODEV;
2607
2608                 urb = alloc_isoc_urb(hdev, skb);
2609                 if (IS_ERR(urb))
2610                         return PTR_ERR(urb);
2611
2612                 hdev->stat.sco_tx++;
2613                 return submit_tx_urb(hdev, urb);
2614
2615         case HCI_ISODATA_PKT:
2616                 urb = alloc_bulk_urb(hdev, skb);
2617                 if (IS_ERR(urb))
2618                         return PTR_ERR(urb);
2619
2620                 return submit_or_queue_tx_urb(hdev, urb);
2621         }
2622
2623         return -EILSEQ;
2624 }
2625
2626 static int btusb_setup_realtek(struct hci_dev *hdev)
2627 {
2628         struct btusb_data *data = hci_get_drvdata(hdev);
2629         int ret;
2630
2631         ret = btrtl_setup_realtek(hdev);
2632
2633         if (btrealtek_test_flag(data->hdev, REALTEK_ALT6_CONTINUOUS_TX_CHIP))
2634                 set_bit(BTUSB_ALT6_CONTINUOUS_TX, &data->flags);
2635
2636         return ret;
2637 }
2638
2639 static int btusb_recv_event_realtek(struct hci_dev *hdev, struct sk_buff *skb)
2640 {
2641         if (skb->data[0] == HCI_VENDOR_PKT && skb->data[2] == RTK_SUB_EVENT_CODE_COREDUMP) {
2642                 struct rtk_dev_coredump_hdr hdr = {
2643                         .code = RTK_DEVCOREDUMP_CODE_MEMDUMP,
2644                 };
2645
2646                 bt_dev_dbg(hdev, "RTL: received coredump vendor evt, len %u",
2647                         skb->len);
2648
2649                 btusb_rtl_alloc_devcoredump(hdev, &hdr, skb->data, skb->len);
2650                 kfree_skb(skb);
2651
2652                 return 0;
2653         }
2654
2655         return hci_recv_frame(hdev, skb);
2656 }
2657
2658 /* UHW CR mapping */
2659 #define MTK_BT_MISC             0x70002510
2660 #define MTK_BT_SUBSYS_RST       0x70002610
2661 #define MTK_UDMA_INT_STA_BT     0x74000024
2662 #define MTK_UDMA_INT_STA_BT1    0x74000308
2663 #define MTK_BT_WDT_STATUS       0x740003A0
2664 #define MTK_EP_RST_OPT          0x74011890
2665 #define MTK_EP_RST_IN_OUT_OPT   0x00010001
2666 #define MTK_BT_RST_DONE         0x00000100
2667 #define MTK_BT_RESET_REG_CONNV3 0x70028610
2668 #define MTK_BT_READ_DEV_ID      0x70010200
2669
2670
2671 static void btusb_mtk_wmt_recv(struct urb *urb)
2672 {
2673         struct hci_dev *hdev = urb->context;
2674         struct btusb_data *data = hci_get_drvdata(hdev);
2675         struct sk_buff *skb;
2676         int err;
2677
2678         if (urb->status == 0 && urb->actual_length > 0) {
2679                 hdev->stat.byte_rx += urb->actual_length;
2680
2681                 /* WMT event shouldn't be fragmented and the size should be
2682                  * less than HCI_WMT_MAX_EVENT_SIZE.
2683                  */
2684                 skb = bt_skb_alloc(HCI_WMT_MAX_EVENT_SIZE, GFP_ATOMIC);
2685                 if (!skb) {
2686                         hdev->stat.err_rx++;
2687                         kfree(urb->setup_packet);
2688                         return;
2689                 }
2690
2691                 hci_skb_pkt_type(skb) = HCI_EVENT_PKT;
2692                 skb_put_data(skb, urb->transfer_buffer, urb->actual_length);
2693
2694                 /* When someone waits for the WMT event, the skb is being cloned
2695                  * and being processed the events from there then.
2696                  */
2697                 if (test_bit(BTUSB_TX_WAIT_VND_EVT, &data->flags)) {
2698                         data->evt_skb = skb_clone(skb, GFP_ATOMIC);
2699                         if (!data->evt_skb) {
2700                                 kfree_skb(skb);
2701                                 kfree(urb->setup_packet);
2702                                 return;
2703                         }
2704                 }
2705
2706                 err = hci_recv_frame(hdev, skb);
2707                 if (err < 0) {
2708                         kfree_skb(data->evt_skb);
2709                         data->evt_skb = NULL;
2710                         kfree(urb->setup_packet);
2711                         return;
2712                 }
2713
2714                 if (test_and_clear_bit(BTUSB_TX_WAIT_VND_EVT,
2715                                        &data->flags)) {
2716                         /* Barrier to sync with other CPUs */
2717                         smp_mb__after_atomic();
2718                         wake_up_bit(&data->flags,
2719                                     BTUSB_TX_WAIT_VND_EVT);
2720                 }
2721                 kfree(urb->setup_packet);
2722                 return;
2723         } else if (urb->status == -ENOENT) {
2724                 /* Avoid suspend failed when usb_kill_urb */
2725                 return;
2726         }
2727
2728         usb_mark_last_busy(data->udev);
2729
2730         /* The URB complete handler is still called with urb->actual_length = 0
2731          * when the event is not available, so we should keep re-submitting
2732          * URB until WMT event returns, Also, It's necessary to wait some time
2733          * between the two consecutive control URBs to relax the target device
2734          * to generate the event. Otherwise, the WMT event cannot return from
2735          * the device successfully.
2736          */
2737         udelay(500);
2738
2739         usb_anchor_urb(urb, &data->ctrl_anchor);
2740         err = usb_submit_urb(urb, GFP_ATOMIC);
2741         if (err < 0) {
2742                 kfree(urb->setup_packet);
2743                 /* -EPERM: urb is being killed;
2744                  * -ENODEV: device got disconnected
2745                  */
2746                 if (err != -EPERM && err != -ENODEV)
2747                         bt_dev_err(hdev, "urb %p failed to resubmit (%d)",
2748                                    urb, -err);
2749                 usb_unanchor_urb(urb);
2750         }
2751 }
2752
2753 static int btusb_mtk_submit_wmt_recv_urb(struct hci_dev *hdev)
2754 {
2755         struct btusb_data *data = hci_get_drvdata(hdev);
2756         struct usb_ctrlrequest *dr;
2757         unsigned char *buf;
2758         int err, size = 64;
2759         unsigned int pipe;
2760         struct urb *urb;
2761
2762         urb = usb_alloc_urb(0, GFP_KERNEL);
2763         if (!urb)
2764                 return -ENOMEM;
2765
2766         dr = kmalloc(sizeof(*dr), GFP_KERNEL);
2767         if (!dr) {
2768                 usb_free_urb(urb);
2769                 return -ENOMEM;
2770         }
2771
2772         dr->bRequestType = USB_TYPE_VENDOR | USB_DIR_IN;
2773         dr->bRequest     = 1;
2774         dr->wIndex       = cpu_to_le16(0);
2775         dr->wValue       = cpu_to_le16(48);
2776         dr->wLength      = cpu_to_le16(size);
2777
2778         buf = kmalloc(size, GFP_KERNEL);
2779         if (!buf) {
2780                 kfree(dr);
2781                 usb_free_urb(urb);
2782                 return -ENOMEM;
2783         }
2784
2785         pipe = usb_rcvctrlpipe(data->udev, 0);
2786
2787         usb_fill_control_urb(urb, data->udev, pipe, (void *)dr,
2788                              buf, size, btusb_mtk_wmt_recv, hdev);
2789
2790         urb->transfer_flags |= URB_FREE_BUFFER;
2791
2792         usb_anchor_urb(urb, &data->ctrl_anchor);
2793         err = usb_submit_urb(urb, GFP_KERNEL);
2794         if (err < 0) {
2795                 if (err != -EPERM && err != -ENODEV)
2796                         bt_dev_err(hdev, "urb %p submission failed (%d)",
2797                                    urb, -err);
2798                 usb_unanchor_urb(urb);
2799         }
2800
2801         usb_free_urb(urb);
2802
2803         return err;
2804 }
2805
2806 static int btusb_mtk_hci_wmt_sync(struct hci_dev *hdev,
2807                                   struct btmtk_hci_wmt_params *wmt_params)
2808 {
2809         struct btusb_data *data = hci_get_drvdata(hdev);
2810         struct btmtk_hci_wmt_evt_funcc *wmt_evt_funcc;
2811         u32 hlen, status = BTMTK_WMT_INVALID;
2812         struct btmtk_hci_wmt_evt *wmt_evt;
2813         struct btmtk_hci_wmt_cmd *wc;
2814         struct btmtk_wmt_hdr *hdr;
2815         int err;
2816
2817         /* Send the WMT command and wait until the WMT event returns */
2818         hlen = sizeof(*hdr) + wmt_params->dlen;
2819         if (hlen > 255)
2820                 return -EINVAL;
2821
2822         wc = kzalloc(hlen, GFP_KERNEL);
2823         if (!wc)
2824                 return -ENOMEM;
2825
2826         hdr = &wc->hdr;
2827         hdr->dir = 1;
2828         hdr->op = wmt_params->op;
2829         hdr->dlen = cpu_to_le16(wmt_params->dlen + 1);
2830         hdr->flag = wmt_params->flag;
2831         memcpy(wc->data, wmt_params->data, wmt_params->dlen);
2832
2833         set_bit(BTUSB_TX_WAIT_VND_EVT, &data->flags);
2834
2835         /* WMT cmd/event doesn't follow up the generic HCI cmd/event handling,
2836          * it needs constantly polling control pipe until the host received the
2837          * WMT event, thus, we should require to specifically acquire PM counter
2838          * on the USB to prevent the interface from entering auto suspended
2839          * while WMT cmd/event in progress.
2840          */
2841         err = usb_autopm_get_interface(data->intf);
2842         if (err < 0)
2843                 goto err_free_wc;
2844
2845         err = __hci_cmd_send(hdev, 0xfc6f, hlen, wc);
2846
2847         if (err < 0) {
2848                 clear_bit(BTUSB_TX_WAIT_VND_EVT, &data->flags);
2849                 usb_autopm_put_interface(data->intf);
2850                 goto err_free_wc;
2851         }
2852
2853         /* Submit control IN URB on demand to process the WMT event */
2854         err = btusb_mtk_submit_wmt_recv_urb(hdev);
2855
2856         usb_autopm_put_interface(data->intf);
2857
2858         if (err < 0)
2859                 goto err_free_wc;
2860
2861         /* The vendor specific WMT commands are all answered by a vendor
2862          * specific event and will have the Command Status or Command
2863          * Complete as with usual HCI command flow control.
2864          *
2865          * After sending the command, wait for BTUSB_TX_WAIT_VND_EVT
2866          * state to be cleared. The driver specific event receive routine
2867          * will clear that state and with that indicate completion of the
2868          * WMT command.
2869          */
2870         err = wait_on_bit_timeout(&data->flags, BTUSB_TX_WAIT_VND_EVT,
2871                                   TASK_INTERRUPTIBLE, HCI_INIT_TIMEOUT);
2872         if (err == -EINTR) {
2873                 bt_dev_err(hdev, "Execution of wmt command interrupted");
2874                 clear_bit(BTUSB_TX_WAIT_VND_EVT, &data->flags);
2875                 goto err_free_wc;
2876         }
2877
2878         if (err) {
2879                 bt_dev_err(hdev, "Execution of wmt command timed out");
2880                 clear_bit(BTUSB_TX_WAIT_VND_EVT, &data->flags);
2881                 err = -ETIMEDOUT;
2882                 goto err_free_wc;
2883         }
2884
2885         /* Parse and handle the return WMT event */
2886         wmt_evt = (struct btmtk_hci_wmt_evt *)data->evt_skb->data;
2887         if (wmt_evt->whdr.op != hdr->op) {
2888                 bt_dev_err(hdev, "Wrong op received %d expected %d",
2889                            wmt_evt->whdr.op, hdr->op);
2890                 err = -EIO;
2891                 goto err_free_skb;
2892         }
2893
2894         switch (wmt_evt->whdr.op) {
2895         case BTMTK_WMT_SEMAPHORE:
2896                 if (wmt_evt->whdr.flag == 2)
2897                         status = BTMTK_WMT_PATCH_UNDONE;
2898                 else
2899                         status = BTMTK_WMT_PATCH_DONE;
2900                 break;
2901         case BTMTK_WMT_FUNC_CTRL:
2902                 wmt_evt_funcc = (struct btmtk_hci_wmt_evt_funcc *)wmt_evt;
2903                 if (be16_to_cpu(wmt_evt_funcc->status) == 0x404)
2904                         status = BTMTK_WMT_ON_DONE;
2905                 else if (be16_to_cpu(wmt_evt_funcc->status) == 0x420)
2906                         status = BTMTK_WMT_ON_PROGRESS;
2907                 else
2908                         status = BTMTK_WMT_ON_UNDONE;
2909                 break;
2910         case BTMTK_WMT_PATCH_DWNLD:
2911                 if (wmt_evt->whdr.flag == 2)
2912                         status = BTMTK_WMT_PATCH_DONE;
2913                 else if (wmt_evt->whdr.flag == 1)
2914                         status = BTMTK_WMT_PATCH_PROGRESS;
2915                 else
2916                         status = BTMTK_WMT_PATCH_UNDONE;
2917                 break;
2918         }
2919
2920         if (wmt_params->status)
2921                 *wmt_params->status = status;
2922
2923 err_free_skb:
2924         kfree_skb(data->evt_skb);
2925         data->evt_skb = NULL;
2926 err_free_wc:
2927         kfree(wc);
2928         return err;
2929 }
2930
2931 static int btusb_mtk_func_query(struct hci_dev *hdev)
2932 {
2933         struct btmtk_hci_wmt_params wmt_params;
2934         int status, err;
2935         u8 param = 0;
2936
2937         /* Query whether the function is enabled */
2938         wmt_params.op = BTMTK_WMT_FUNC_CTRL;
2939         wmt_params.flag = 4;
2940         wmt_params.dlen = sizeof(param);
2941         wmt_params.data = &param;
2942         wmt_params.status = &status;
2943
2944         err = btusb_mtk_hci_wmt_sync(hdev, &wmt_params);
2945         if (err < 0) {
2946                 bt_dev_err(hdev, "Failed to query function status (%d)", err);
2947                 return err;
2948         }
2949
2950         return status;
2951 }
2952
2953 static int btusb_mtk_uhw_reg_write(struct btusb_data *data, u32 reg, u32 val)
2954 {
2955         struct hci_dev *hdev = data->hdev;
2956         int pipe, err;
2957         void *buf;
2958
2959         buf = kzalloc(4, GFP_KERNEL);
2960         if (!buf)
2961                 return -ENOMEM;
2962
2963         put_unaligned_le32(val, buf);
2964
2965         pipe = usb_sndctrlpipe(data->udev, 0);
2966         err = usb_control_msg(data->udev, pipe, 0x02,
2967                               0x5E,
2968                               reg >> 16, reg & 0xffff,
2969                               buf, 4, USB_CTRL_SET_TIMEOUT);
2970         if (err < 0) {
2971                 bt_dev_err(hdev, "Failed to write uhw reg(%d)", err);
2972                 goto err_free_buf;
2973         }
2974
2975 err_free_buf:
2976         kfree(buf);
2977
2978         return err;
2979 }
2980
2981 static int btusb_mtk_uhw_reg_read(struct btusb_data *data, u32 reg, u32 *val)
2982 {
2983         struct hci_dev *hdev = data->hdev;
2984         int pipe, err;
2985         void *buf;
2986
2987         buf = kzalloc(4, GFP_KERNEL);
2988         if (!buf)
2989                 return -ENOMEM;
2990
2991         pipe = usb_rcvctrlpipe(data->udev, 0);
2992         err = usb_control_msg(data->udev, pipe, 0x01,
2993                               0xDE,
2994                               reg >> 16, reg & 0xffff,
2995                               buf, 4, USB_CTRL_SET_TIMEOUT);
2996         if (err < 0) {
2997                 bt_dev_err(hdev, "Failed to read uhw reg(%d)", err);
2998                 goto err_free_buf;
2999         }
3000
3001         *val = get_unaligned_le32(buf);
3002         bt_dev_dbg(hdev, "reg=%x, value=0x%08x", reg, *val);
3003
3004 err_free_buf:
3005         kfree(buf);
3006
3007         return err;
3008 }
3009
3010 static int btusb_mtk_reg_read(struct btusb_data *data, u32 reg, u32 *val)
3011 {
3012         int pipe, err, size = sizeof(u32);
3013         void *buf;
3014
3015         buf = kzalloc(size, GFP_KERNEL);
3016         if (!buf)
3017                 return -ENOMEM;
3018
3019         pipe = usb_rcvctrlpipe(data->udev, 0);
3020         err = usb_control_msg(data->udev, pipe, 0x63,
3021                               USB_TYPE_VENDOR | USB_DIR_IN,
3022                               reg >> 16, reg & 0xffff,
3023                               buf, size, USB_CTRL_SET_TIMEOUT);
3024         if (err < 0)
3025                 goto err_free_buf;
3026
3027         *val = get_unaligned_le32(buf);
3028
3029 err_free_buf:
3030         kfree(buf);
3031
3032         return err;
3033 }
3034
3035 static int btusb_mtk_id_get(struct btusb_data *data, u32 reg, u32 *id)
3036 {
3037         return btusb_mtk_reg_read(data, reg, id);
3038 }
3039
3040 static u32 btusb_mtk_reset_done(struct hci_dev *hdev)
3041 {
3042         struct btusb_data *data = hci_get_drvdata(hdev);
3043         u32 val = 0;
3044
3045         btusb_mtk_uhw_reg_read(data, MTK_BT_MISC, &val);
3046
3047         return val & MTK_BT_RST_DONE;
3048 }
3049
3050 static int btusb_mtk_reset(struct hci_dev *hdev, void *rst_data)
3051 {
3052         struct btusb_data *data = hci_get_drvdata(hdev);
3053         struct btmediatek_data *mediatek;
3054         u32 val;
3055         int err;
3056
3057         /* It's MediaTek specific bluetooth reset mechanism via USB */
3058         if (test_and_set_bit(BTUSB_HW_RESET_ACTIVE, &data->flags)) {
3059                 bt_dev_err(hdev, "last reset failed? Not resetting again");
3060                 return -EBUSY;
3061         }
3062
3063         err = usb_autopm_get_interface(data->intf);
3064         if (err < 0)
3065                 return err;
3066
3067         btusb_stop_traffic(data);
3068         usb_kill_anchored_urbs(&data->tx_anchor);
3069         mediatek = hci_get_priv(hdev);
3070
3071         if (mediatek->dev_id == 0x7925) {
3072                 btusb_mtk_uhw_reg_read(data, MTK_BT_RESET_REG_CONNV3, &val);
3073                 val |= (1 << 5);
3074                 btusb_mtk_uhw_reg_write(data, MTK_BT_RESET_REG_CONNV3, val);
3075                 btusb_mtk_uhw_reg_read(data, MTK_BT_RESET_REG_CONNV3, &val);
3076                 val &= 0xFFFF00FF;
3077                 val |= (1 << 13);
3078                 btusb_mtk_uhw_reg_write(data, MTK_BT_RESET_REG_CONNV3, val);
3079                 btusb_mtk_uhw_reg_write(data, MTK_EP_RST_OPT, 0x00010001);
3080                 btusb_mtk_uhw_reg_read(data, MTK_BT_RESET_REG_CONNV3, &val);
3081                 val |= (1 << 0);
3082                 btusb_mtk_uhw_reg_write(data, MTK_BT_RESET_REG_CONNV3, val);
3083                 btusb_mtk_uhw_reg_write(data, MTK_UDMA_INT_STA_BT, 0x000000FF);
3084                 btusb_mtk_uhw_reg_read(data, MTK_UDMA_INT_STA_BT, &val);
3085                 btusb_mtk_uhw_reg_write(data, MTK_UDMA_INT_STA_BT1, 0x000000FF);
3086                 btusb_mtk_uhw_reg_read(data, MTK_UDMA_INT_STA_BT1, &val);
3087                 msleep(100);
3088         } else {
3089                 /* It's Device EndPoint Reset Option Register */
3090                 bt_dev_dbg(hdev, "Initiating reset mechanism via uhw");
3091                 btusb_mtk_uhw_reg_write(data, MTK_EP_RST_OPT, MTK_EP_RST_IN_OUT_OPT);
3092                 btusb_mtk_uhw_reg_read(data, MTK_BT_WDT_STATUS, &val);
3093
3094                 /* Reset the bluetooth chip via USB interface. */
3095                 btusb_mtk_uhw_reg_write(data, MTK_BT_SUBSYS_RST, 1);
3096                 btusb_mtk_uhw_reg_write(data, MTK_UDMA_INT_STA_BT, 0x000000FF);
3097                 btusb_mtk_uhw_reg_read(data, MTK_UDMA_INT_STA_BT, &val);
3098                 btusb_mtk_uhw_reg_write(data, MTK_UDMA_INT_STA_BT1, 0x000000FF);
3099                 btusb_mtk_uhw_reg_read(data, MTK_UDMA_INT_STA_BT1, &val);
3100                 /* MT7921 need to delay 20ms between toggle reset bit */
3101                 msleep(20);
3102                 btusb_mtk_uhw_reg_write(data, MTK_BT_SUBSYS_RST, 0);
3103                 btusb_mtk_uhw_reg_read(data, MTK_BT_SUBSYS_RST, &val);
3104         }
3105
3106         err = readx_poll_timeout(btusb_mtk_reset_done, hdev, val,
3107                                  val & MTK_BT_RST_DONE, 20000, 1000000);
3108         if (err < 0)
3109                 bt_dev_err(hdev, "Reset timeout");
3110
3111         btusb_mtk_id_get(data, 0x70010200, &val);
3112         if (!val)
3113                 bt_dev_err(hdev, "Can't get device id, subsys reset fail.");
3114
3115         usb_queue_reset_device(data->intf);
3116
3117         clear_bit(BTUSB_HW_RESET_ACTIVE, &data->flags);
3118
3119         return err;
3120 }
3121
3122 static int btusb_mtk_setup(struct hci_dev *hdev)
3123 {
3124         struct btusb_data *data = hci_get_drvdata(hdev);
3125         struct btmtk_hci_wmt_params wmt_params;
3126         ktime_t calltime, delta, rettime;
3127         struct btmtk_tci_sleep tci_sleep;
3128         unsigned long long duration;
3129         struct sk_buff *skb;
3130         const char *fwname;
3131         int err, status;
3132         u32 dev_id = 0;
3133         char fw_bin_name[64];
3134         u32 fw_version = 0;
3135         u8 param;
3136         struct btmediatek_data *mediatek;
3137
3138         calltime = ktime_get();
3139
3140         err = btusb_mtk_id_get(data, 0x80000008, &dev_id);
3141         if (err < 0) {
3142                 bt_dev_err(hdev, "Failed to get device id (%d)", err);
3143                 return err;
3144         }
3145
3146         if (!dev_id || dev_id != 0x7663) {
3147                 err = btusb_mtk_id_get(data, 0x70010200, &dev_id);
3148                 if (err < 0) {
3149                         bt_dev_err(hdev, "Failed to get device id (%d)", err);
3150                         return err;
3151                 }
3152                 err = btusb_mtk_id_get(data, 0x80021004, &fw_version);
3153                 if (err < 0) {
3154                         bt_dev_err(hdev, "Failed to get fw version (%d)", err);
3155                         return err;
3156                 }
3157         }
3158
3159         mediatek = hci_get_priv(hdev);
3160         mediatek->dev_id = dev_id;
3161         mediatek->reset_sync = btusb_mtk_reset;
3162
3163         err = btmtk_register_coredump(hdev, btusb_driver.name, fw_version);
3164         if (err < 0)
3165                 bt_dev_err(hdev, "Failed to register coredump (%d)", err);
3166
3167         switch (dev_id) {
3168         case 0x7663:
3169                 fwname = FIRMWARE_MT7663;
3170                 break;
3171         case 0x7668:
3172                 fwname = FIRMWARE_MT7668;
3173                 break;
3174         case 0x7922:
3175         case 0x7961:
3176         case 0x7925:
3177                 if (dev_id == 0x7925)
3178                         snprintf(fw_bin_name, sizeof(fw_bin_name),
3179                                  "mediatek/mt%04x/BT_RAM_CODE_MT%04x_1_%x_hdr.bin",
3180                                  dev_id & 0xffff, dev_id & 0xffff, (fw_version & 0xff) + 1);
3181                 else
3182                         snprintf(fw_bin_name, sizeof(fw_bin_name),
3183                                  "mediatek/BT_RAM_CODE_MT%04x_1_%x_hdr.bin",
3184                                  dev_id & 0xffff, (fw_version & 0xff) + 1);
3185
3186                 err = btmtk_setup_firmware_79xx(hdev, fw_bin_name,
3187                                                 btusb_mtk_hci_wmt_sync);
3188                 if (err < 0) {
3189                         bt_dev_err(hdev, "Failed to set up firmware (%d)", err);
3190                         return err;
3191                 }
3192
3193                 /* It's Device EndPoint Reset Option Register */
3194                 btusb_mtk_uhw_reg_write(data, MTK_EP_RST_OPT, MTK_EP_RST_IN_OUT_OPT);
3195
3196                 /* Enable Bluetooth protocol */
3197                 param = 1;
3198                 wmt_params.op = BTMTK_WMT_FUNC_CTRL;
3199                 wmt_params.flag = 0;
3200                 wmt_params.dlen = sizeof(param);
3201                 wmt_params.data = &param;
3202                 wmt_params.status = NULL;
3203
3204                 err = btusb_mtk_hci_wmt_sync(hdev, &wmt_params);
3205                 if (err < 0) {
3206                         bt_dev_err(hdev, "Failed to send wmt func ctrl (%d)", err);
3207                         return err;
3208                 }
3209
3210                 hci_set_msft_opcode(hdev, 0xFD30);
3211                 hci_set_aosp_capable(hdev);
3212                 goto done;
3213         default:
3214                 bt_dev_err(hdev, "Unsupported hardware variant (%08x)",
3215                            dev_id);
3216                 return -ENODEV;
3217         }
3218
3219         /* Query whether the firmware is already download */
3220         wmt_params.op = BTMTK_WMT_SEMAPHORE;
3221         wmt_params.flag = 1;
3222         wmt_params.dlen = 0;
3223         wmt_params.data = NULL;
3224         wmt_params.status = &status;
3225
3226         err = btusb_mtk_hci_wmt_sync(hdev, &wmt_params);
3227         if (err < 0) {
3228                 bt_dev_err(hdev, "Failed to query firmware status (%d)", err);
3229                 return err;
3230         }
3231
3232         if (status == BTMTK_WMT_PATCH_DONE) {
3233                 bt_dev_info(hdev, "firmware already downloaded");
3234                 goto ignore_setup_fw;
3235         }
3236
3237         /* Setup a firmware which the device definitely requires */
3238         err = btmtk_setup_firmware(hdev, fwname,
3239                                    btusb_mtk_hci_wmt_sync);
3240         if (err < 0)
3241                 return err;
3242
3243 ignore_setup_fw:
3244         err = readx_poll_timeout(btusb_mtk_func_query, hdev, status,
3245                                  status < 0 || status != BTMTK_WMT_ON_PROGRESS,
3246                                  2000, 5000000);
3247         /* -ETIMEDOUT happens */
3248         if (err < 0)
3249                 return err;
3250
3251         /* The other errors happen in btusb_mtk_func_query */
3252         if (status < 0)
3253                 return status;
3254
3255         if (status == BTMTK_WMT_ON_DONE) {
3256                 bt_dev_info(hdev, "function already on");
3257                 goto ignore_func_on;
3258         }
3259
3260         /* Enable Bluetooth protocol */
3261         param = 1;
3262         wmt_params.op = BTMTK_WMT_FUNC_CTRL;
3263         wmt_params.flag = 0;
3264         wmt_params.dlen = sizeof(param);
3265         wmt_params.data = &param;
3266         wmt_params.status = NULL;
3267
3268         err = btusb_mtk_hci_wmt_sync(hdev, &wmt_params);
3269         if (err < 0) {
3270                 bt_dev_err(hdev, "Failed to send wmt func ctrl (%d)", err);
3271                 return err;
3272         }
3273
3274 ignore_func_on:
3275         /* Apply the low power environment setup */
3276         tci_sleep.mode = 0x5;
3277         tci_sleep.duration = cpu_to_le16(0x640);
3278         tci_sleep.host_duration = cpu_to_le16(0x640);
3279         tci_sleep.host_wakeup_pin = 0;
3280         tci_sleep.time_compensation = 0;
3281
3282         skb = __hci_cmd_sync(hdev, 0xfc7a, sizeof(tci_sleep), &tci_sleep,
3283                              HCI_INIT_TIMEOUT);
3284         if (IS_ERR(skb)) {
3285                 err = PTR_ERR(skb);
3286                 bt_dev_err(hdev, "Failed to apply low power setting (%d)", err);
3287                 return err;
3288         }
3289         kfree_skb(skb);
3290
3291 done:
3292         rettime = ktime_get();
3293         delta = ktime_sub(rettime, calltime);
3294         duration = (unsigned long long)ktime_to_ns(delta) >> 10;
3295
3296         bt_dev_info(hdev, "Device setup in %llu usecs", duration);
3297
3298         return 0;
3299 }
3300
3301 static int btusb_mtk_shutdown(struct hci_dev *hdev)
3302 {
3303         struct btmtk_hci_wmt_params wmt_params;
3304         u8 param = 0;
3305         int err;
3306
3307         /* Disable the device */
3308         wmt_params.op = BTMTK_WMT_FUNC_CTRL;
3309         wmt_params.flag = 0;
3310         wmt_params.dlen = sizeof(param);
3311         wmt_params.data = &param;
3312         wmt_params.status = NULL;
3313
3314         err = btusb_mtk_hci_wmt_sync(hdev, &wmt_params);
3315         if (err < 0) {
3316                 bt_dev_err(hdev, "Failed to send wmt func ctrl (%d)", err);
3317                 return err;
3318         }
3319
3320         return 0;
3321 }
3322
3323 static int btusb_recv_acl_mtk(struct hci_dev *hdev, struct sk_buff *skb)
3324 {
3325         struct btusb_data *data = hci_get_drvdata(hdev);
3326         u16 handle = le16_to_cpu(hci_acl_hdr(skb)->handle);
3327         struct sk_buff *skb_cd;
3328
3329         switch (handle) {
3330         case 0xfc6f:            /* Firmware dump from device */
3331                 /* When the firmware hangs, the device can no longer
3332                  * suspend and thus disable auto-suspend.
3333                  */
3334                 usb_disable_autosuspend(data->udev);
3335
3336                 /* We need to forward the diagnostic packet to userspace daemon
3337                  * for backward compatibility, so we have to clone the packet
3338                  * extraly for the in-kernel coredump support.
3339                  */
3340                 skb_cd = skb_clone(skb, GFP_ATOMIC);
3341                 if (skb_cd)
3342                         btmtk_process_coredump(hdev, skb_cd);
3343
3344                 fallthrough;
3345         case 0x05ff:            /* Firmware debug logging 1 */
3346         case 0x05fe:            /* Firmware debug logging 2 */
3347                 return hci_recv_diag(hdev, skb);
3348         }
3349
3350         return hci_recv_frame(hdev, skb);
3351 }
3352
3353 #ifdef CONFIG_PM
3354 /* Configure an out-of-band gpio as wake-up pin, if specified in device tree */
3355 static int marvell_config_oob_wake(struct hci_dev *hdev)
3356 {
3357         struct sk_buff *skb;
3358         struct btusb_data *data = hci_get_drvdata(hdev);
3359         struct device *dev = &data->udev->dev;
3360         u16 pin, gap, opcode;
3361         int ret;
3362         u8 cmd[5];
3363
3364         /* Move on if no wakeup pin specified */
3365         if (of_property_read_u16(dev->of_node, "marvell,wakeup-pin", &pin) ||
3366             of_property_read_u16(dev->of_node, "marvell,wakeup-gap-ms", &gap))
3367                 return 0;
3368
3369         /* Vendor specific command to configure a GPIO as wake-up pin */
3370         opcode = hci_opcode_pack(0x3F, 0x59);
3371         cmd[0] = opcode & 0xFF;
3372         cmd[1] = opcode >> 8;
3373         cmd[2] = 2; /* length of parameters that follow */
3374         cmd[3] = pin;
3375         cmd[4] = gap; /* time in ms, for which wakeup pin should be asserted */
3376
3377         skb = bt_skb_alloc(sizeof(cmd), GFP_KERNEL);
3378         if (!skb) {
3379                 bt_dev_err(hdev, "%s: No memory", __func__);
3380                 return -ENOMEM;
3381         }
3382
3383         skb_put_data(skb, cmd, sizeof(cmd));
3384         hci_skb_pkt_type(skb) = HCI_COMMAND_PKT;
3385
3386         ret = btusb_send_frame(hdev, skb);
3387         if (ret) {
3388                 bt_dev_err(hdev, "%s: configuration failed", __func__);
3389                 kfree_skb(skb);
3390                 return ret;
3391         }
3392
3393         return 0;
3394 }
3395 #endif
3396
3397 static int btusb_set_bdaddr_marvell(struct hci_dev *hdev,
3398                                     const bdaddr_t *bdaddr)
3399 {
3400         struct sk_buff *skb;
3401         u8 buf[8];
3402         long ret;
3403
3404         buf[0] = 0xfe;
3405         buf[1] = sizeof(bdaddr_t);
3406         memcpy(buf + 2, bdaddr, sizeof(bdaddr_t));
3407
3408         skb = __hci_cmd_sync(hdev, 0xfc22, sizeof(buf), buf, HCI_INIT_TIMEOUT);
3409         if (IS_ERR(skb)) {
3410                 ret = PTR_ERR(skb);
3411                 bt_dev_err(hdev, "changing Marvell device address failed (%ld)",
3412                            ret);
3413                 return ret;
3414         }
3415         kfree_skb(skb);
3416
3417         return 0;
3418 }
3419
3420 static int btusb_set_bdaddr_ath3012(struct hci_dev *hdev,
3421                                     const bdaddr_t *bdaddr)
3422 {
3423         struct sk_buff *skb;
3424         u8 buf[10];
3425         long ret;
3426
3427         buf[0] = 0x01;
3428         buf[1] = 0x01;
3429         buf[2] = 0x00;
3430         buf[3] = sizeof(bdaddr_t);
3431         memcpy(buf + 4, bdaddr, sizeof(bdaddr_t));
3432
3433         skb = __hci_cmd_sync(hdev, 0xfc0b, sizeof(buf), buf, HCI_INIT_TIMEOUT);
3434         if (IS_ERR(skb)) {
3435                 ret = PTR_ERR(skb);
3436                 bt_dev_err(hdev, "Change address command failed (%ld)", ret);
3437                 return ret;
3438         }
3439         kfree_skb(skb);
3440
3441         return 0;
3442 }
3443
3444 static int btusb_set_bdaddr_wcn6855(struct hci_dev *hdev,
3445                                 const bdaddr_t *bdaddr)
3446 {
3447         struct sk_buff *skb;
3448         u8 buf[6];
3449         long ret;
3450
3451         memcpy(buf, bdaddr, sizeof(bdaddr_t));
3452
3453         skb = __hci_cmd_sync_ev(hdev, 0xfc14, sizeof(buf), buf,
3454                                 HCI_EV_CMD_COMPLETE, HCI_INIT_TIMEOUT);
3455         if (IS_ERR(skb)) {
3456                 ret = PTR_ERR(skb);
3457                 bt_dev_err(hdev, "Change address command failed (%ld)", ret);
3458                 return ret;
3459         }
3460         kfree_skb(skb);
3461
3462         return 0;
3463 }
3464
3465 #define QCA_MEMDUMP_ACL_HANDLE 0x2EDD
3466 #define QCA_MEMDUMP_SIZE_MAX  0x100000
3467 #define QCA_MEMDUMP_VSE_CLASS 0x01
3468 #define QCA_MEMDUMP_MSG_TYPE 0x08
3469 #define QCA_MEMDUMP_PKT_SIZE 248
3470 #define QCA_LAST_SEQUENCE_NUM 0xffff
3471
3472 struct qca_dump_hdr {
3473         u8 vse_class;
3474         u8 msg_type;
3475         __le16 seqno;
3476         u8 reserved;
3477         union {
3478                 u8 data[0];
3479                 struct {
3480                         __le32 ram_dump_size;
3481                         u8 data0[0];
3482                 } __packed;
3483         };
3484 } __packed;
3485
3486
3487 static void btusb_dump_hdr_qca(struct hci_dev *hdev, struct sk_buff *skb)
3488 {
3489         char buf[128];
3490         struct btusb_data *btdata = hci_get_drvdata(hdev);
3491
3492         snprintf(buf, sizeof(buf), "Controller Name: 0x%x\n",
3493                         btdata->qca_dump.controller_id);
3494         skb_put_data(skb, buf, strlen(buf));
3495
3496         snprintf(buf, sizeof(buf), "Firmware Version: 0x%x\n",
3497                         btdata->qca_dump.fw_version);
3498         skb_put_data(skb, buf, strlen(buf));
3499
3500         snprintf(buf, sizeof(buf), "Driver: %s\nVendor: qca\n",
3501                         btusb_driver.name);
3502         skb_put_data(skb, buf, strlen(buf));
3503
3504         snprintf(buf, sizeof(buf), "VID: 0x%x\nPID:0x%x\n",
3505                         btdata->qca_dump.id_vendor, btdata->qca_dump.id_product);
3506         skb_put_data(skb, buf, strlen(buf));
3507
3508         snprintf(buf, sizeof(buf), "Lmp Subversion: 0x%x\n",
3509                         hdev->lmp_subver);
3510         skb_put_data(skb, buf, strlen(buf));
3511 }
3512
3513 static void btusb_coredump_qca(struct hci_dev *hdev)
3514 {
3515         static const u8 param[] = { 0x26 };
3516         struct sk_buff *skb;
3517
3518         skb = __hci_cmd_sync(hdev, 0xfc0c, 1, param, HCI_CMD_TIMEOUT);
3519         if (IS_ERR(skb))
3520                 bt_dev_err(hdev, "%s: triggle crash failed (%ld)", __func__, PTR_ERR(skb));
3521         kfree_skb(skb);
3522 }
3523
3524 /*
3525  * ==0: not a dump pkt.
3526  * < 0: fails to handle a dump pkt
3527  * > 0: otherwise.
3528  */
3529 static int handle_dump_pkt_qca(struct hci_dev *hdev, struct sk_buff *skb)
3530 {
3531         int ret = 1;
3532         u8 pkt_type;
3533         u8 *sk_ptr;
3534         unsigned int sk_len;
3535         u16 seqno;
3536         u32 dump_size;
3537
3538         struct hci_event_hdr *event_hdr;
3539         struct hci_acl_hdr *acl_hdr;
3540         struct qca_dump_hdr *dump_hdr;
3541         struct btusb_data *btdata = hci_get_drvdata(hdev);
3542         struct usb_device *udev = btdata->udev;
3543
3544         pkt_type = hci_skb_pkt_type(skb);
3545         sk_ptr = skb->data;
3546         sk_len = skb->len;
3547
3548         if (pkt_type == HCI_ACLDATA_PKT) {
3549                 acl_hdr = hci_acl_hdr(skb);
3550                 if (le16_to_cpu(acl_hdr->handle) != QCA_MEMDUMP_ACL_HANDLE)
3551                         return 0;
3552                 sk_ptr += HCI_ACL_HDR_SIZE;
3553                 sk_len -= HCI_ACL_HDR_SIZE;
3554                 event_hdr = (struct hci_event_hdr *)sk_ptr;
3555         } else {
3556                 event_hdr = hci_event_hdr(skb);
3557         }
3558
3559         if ((event_hdr->evt != HCI_VENDOR_PKT)
3560                 || (event_hdr->plen != (sk_len - HCI_EVENT_HDR_SIZE)))
3561                 return 0;
3562
3563         sk_ptr += HCI_EVENT_HDR_SIZE;
3564         sk_len -= HCI_EVENT_HDR_SIZE;
3565
3566         dump_hdr = (struct qca_dump_hdr *)sk_ptr;
3567         if ((sk_len < offsetof(struct qca_dump_hdr, data))
3568                 || (dump_hdr->vse_class != QCA_MEMDUMP_VSE_CLASS)
3569             || (dump_hdr->msg_type != QCA_MEMDUMP_MSG_TYPE))
3570                 return 0;
3571
3572         /*it is dump pkt now*/
3573         seqno = le16_to_cpu(dump_hdr->seqno);
3574         if (seqno == 0) {
3575                 set_bit(BTUSB_HW_SSR_ACTIVE, &btdata->flags);
3576                 dump_size = le32_to_cpu(dump_hdr->ram_dump_size);
3577                 if (!dump_size || (dump_size > QCA_MEMDUMP_SIZE_MAX)) {
3578                         ret = -EILSEQ;
3579                         bt_dev_err(hdev, "Invalid memdump size(%u)",
3580                                    dump_size);
3581                         goto out;
3582                 }
3583
3584                 ret = hci_devcd_init(hdev, dump_size);
3585                 if (ret < 0) {
3586                         bt_dev_err(hdev, "memdump init error(%d)", ret);
3587                         goto out;
3588                 }
3589
3590                 btdata->qca_dump.ram_dump_size = dump_size;
3591                 btdata->qca_dump.ram_dump_seqno = 0;
3592                 sk_ptr += offsetof(struct qca_dump_hdr, data0);
3593                 sk_len -= offsetof(struct qca_dump_hdr, data0);
3594
3595                 usb_disable_autosuspend(udev);
3596                 bt_dev_info(hdev, "%s memdump size(%u)\n",
3597                             (pkt_type == HCI_ACLDATA_PKT) ? "ACL" : "event",
3598                             dump_size);
3599         } else {
3600                 sk_ptr += offsetof(struct qca_dump_hdr, data);
3601                 sk_len -= offsetof(struct qca_dump_hdr, data);
3602         }
3603
3604         if (!btdata->qca_dump.ram_dump_size) {
3605                 ret = -EINVAL;
3606                 bt_dev_err(hdev, "memdump is not active");
3607                 goto out;
3608         }
3609
3610         if ((seqno > btdata->qca_dump.ram_dump_seqno + 1) && (seqno != QCA_LAST_SEQUENCE_NUM)) {
3611                 dump_size = QCA_MEMDUMP_PKT_SIZE * (seqno - btdata->qca_dump.ram_dump_seqno - 1);
3612                 hci_devcd_append_pattern(hdev, 0x0, dump_size);
3613                 bt_dev_err(hdev,
3614                            "expected memdump seqno(%u) is not received(%u)\n",
3615                            btdata->qca_dump.ram_dump_seqno, seqno);
3616                 btdata->qca_dump.ram_dump_seqno = seqno;
3617                 kfree_skb(skb);
3618                 return ret;
3619         }
3620
3621         skb_pull(skb, skb->len - sk_len);
3622         hci_devcd_append(hdev, skb);
3623         btdata->qca_dump.ram_dump_seqno++;
3624         if (seqno == QCA_LAST_SEQUENCE_NUM) {
3625                 bt_dev_info(hdev,
3626                                 "memdump done: pkts(%u), total(%u)\n",
3627                                 btdata->qca_dump.ram_dump_seqno, btdata->qca_dump.ram_dump_size);
3628
3629                 hci_devcd_complete(hdev);
3630                 goto out;
3631         }
3632         return ret;
3633
3634 out:
3635         if (btdata->qca_dump.ram_dump_size)
3636                 usb_enable_autosuspend(udev);
3637         btdata->qca_dump.ram_dump_size = 0;
3638         btdata->qca_dump.ram_dump_seqno = 0;
3639         clear_bit(BTUSB_HW_SSR_ACTIVE, &btdata->flags);
3640
3641         if (ret < 0)
3642                 kfree_skb(skb);
3643         return ret;
3644 }
3645
3646 static int btusb_recv_acl_qca(struct hci_dev *hdev, struct sk_buff *skb)
3647 {
3648         if (handle_dump_pkt_qca(hdev, skb))
3649                 return 0;
3650         return hci_recv_frame(hdev, skb);
3651 }
3652
3653 static int btusb_recv_evt_qca(struct hci_dev *hdev, struct sk_buff *skb)
3654 {
3655         if (handle_dump_pkt_qca(hdev, skb))
3656                 return 0;
3657         return hci_recv_frame(hdev, skb);
3658 }
3659
3660
3661 #define QCA_DFU_PACKET_LEN      4096
3662
3663 #define QCA_GET_TARGET_VERSION  0x09
3664 #define QCA_CHECK_STATUS        0x05
3665 #define QCA_DFU_DOWNLOAD        0x01
3666
3667 #define QCA_SYSCFG_UPDATED      0x40
3668 #define QCA_PATCH_UPDATED       0x80
3669 #define QCA_DFU_TIMEOUT         3000
3670 #define QCA_FLAG_MULTI_NVM      0x80
3671 #define QCA_BT_RESET_WAIT_MS    100
3672
3673 #define WCN6855_2_0_RAM_VERSION_GF 0x400c1200
3674 #define WCN6855_2_1_RAM_VERSION_GF 0x400c1211
3675
3676 struct qca_version {
3677         __le32  rom_version;
3678         __le32  patch_version;
3679         __le32  ram_version;
3680         __u8    chip_id;
3681         __u8    platform_id;
3682         __le16  flag;
3683         __u8    reserved[4];
3684 } __packed;
3685
3686 struct qca_rampatch_version {
3687         __le16  rom_version_high;
3688         __le16  rom_version_low;
3689         __le16  patch_version;
3690 } __packed;
3691
3692 struct qca_device_info {
3693         u32     rom_version;
3694         u8      rampatch_hdr;   /* length of header in rampatch */
3695         u8      nvm_hdr;        /* length of header in NVM */
3696         u8      ver_offset;     /* offset of version structure in rampatch */
3697 };
3698
3699 static const struct qca_device_info qca_devices_table[] = {
3700         { 0x00000100, 20, 4,  8 }, /* Rome 1.0 */
3701         { 0x00000101, 20, 4,  8 }, /* Rome 1.1 */
3702         { 0x00000200, 28, 4, 16 }, /* Rome 2.0 */
3703         { 0x00000201, 28, 4, 16 }, /* Rome 2.1 */
3704         { 0x00000300, 28, 4, 16 }, /* Rome 3.0 */
3705         { 0x00000302, 28, 4, 16 }, /* Rome 3.2 */
3706         { 0x00130100, 40, 4, 16 }, /* WCN6855 1.0 */
3707         { 0x00130200, 40, 4, 16 }, /* WCN6855 2.0 */
3708         { 0x00130201, 40, 4, 16 }, /* WCN6855 2.1 */
3709         { 0x00190200, 40, 4, 16 }, /* WCN785x 2.0 */
3710 };
3711
3712 static int btusb_qca_send_vendor_req(struct usb_device *udev, u8 request,
3713                                      void *data, u16 size)
3714 {
3715         int pipe, err;
3716         u8 *buf;
3717
3718         buf = kmalloc(size, GFP_KERNEL);
3719         if (!buf)
3720                 return -ENOMEM;
3721
3722         /* Found some of USB hosts have IOT issues with ours so that we should
3723          * not wait until HCI layer is ready.
3724          */
3725         pipe = usb_rcvctrlpipe(udev, 0);
3726         err = usb_control_msg(udev, pipe, request, USB_TYPE_VENDOR | USB_DIR_IN,
3727                               0, 0, buf, size, USB_CTRL_SET_TIMEOUT);
3728         if (err < 0) {
3729                 dev_err(&udev->dev, "Failed to access otp area (%d)", err);
3730                 goto done;
3731         }
3732
3733         memcpy(data, buf, size);
3734
3735 done:
3736         kfree(buf);
3737
3738         return err;
3739 }
3740
3741 static int btusb_setup_qca_download_fw(struct hci_dev *hdev,
3742                                        const struct firmware *firmware,
3743                                        size_t hdr_size)
3744 {
3745         struct btusb_data *btdata = hci_get_drvdata(hdev);
3746         struct usb_device *udev = btdata->udev;
3747         size_t count, size, sent = 0;
3748         int pipe, len, err;
3749         u8 *buf;
3750
3751         buf = kmalloc(QCA_DFU_PACKET_LEN, GFP_KERNEL);
3752         if (!buf)
3753                 return -ENOMEM;
3754
3755         count = firmware->size;
3756
3757         size = min_t(size_t, count, hdr_size);
3758         memcpy(buf, firmware->data, size);
3759
3760         /* USB patches should go down to controller through USB path
3761          * because binary format fits to go down through USB channel.
3762          * USB control path is for patching headers and USB bulk is for
3763          * patch body.
3764          */
3765         pipe = usb_sndctrlpipe(udev, 0);
3766         err = usb_control_msg(udev, pipe, QCA_DFU_DOWNLOAD, USB_TYPE_VENDOR,
3767                               0, 0, buf, size, USB_CTRL_SET_TIMEOUT);
3768         if (err < 0) {
3769                 bt_dev_err(hdev, "Failed to send headers (%d)", err);
3770                 goto done;
3771         }
3772
3773         sent += size;
3774         count -= size;
3775
3776         /* ep2 need time to switch from function acl to function dfu,
3777          * so we add 20ms delay here.
3778          */
3779         msleep(20);
3780
3781         while (count) {
3782                 size = min_t(size_t, count, QCA_DFU_PACKET_LEN);
3783
3784                 memcpy(buf, firmware->data + sent, size);
3785
3786                 pipe = usb_sndbulkpipe(udev, 0x02);
3787                 err = usb_bulk_msg(udev, pipe, buf, size, &len,
3788                                    QCA_DFU_TIMEOUT);
3789                 if (err < 0) {
3790                         bt_dev_err(hdev, "Failed to send body at %zd of %zd (%d)",
3791                                    sent, firmware->size, err);
3792                         break;
3793                 }
3794
3795                 if (size != len) {
3796                         bt_dev_err(hdev, "Failed to get bulk buffer");
3797                         err = -EILSEQ;
3798                         break;
3799                 }
3800
3801                 sent  += size;
3802                 count -= size;
3803         }
3804
3805 done:
3806         kfree(buf);
3807         return err;
3808 }
3809
3810 static int btusb_setup_qca_load_rampatch(struct hci_dev *hdev,
3811                                          struct qca_version *ver,
3812                                          const struct qca_device_info *info)
3813 {
3814         struct qca_rampatch_version *rver;
3815         const struct firmware *fw;
3816         u32 ver_rom, ver_patch, rver_rom;
3817         u16 rver_rom_low, rver_rom_high, rver_patch;
3818         char fwname[64];
3819         int err;
3820
3821         ver_rom = le32_to_cpu(ver->rom_version);
3822         ver_patch = le32_to_cpu(ver->patch_version);
3823
3824         snprintf(fwname, sizeof(fwname), "qca/rampatch_usb_%08x.bin", ver_rom);
3825
3826         err = request_firmware(&fw, fwname, &hdev->dev);
3827         if (err) {
3828                 bt_dev_err(hdev, "failed to request rampatch file: %s (%d)",
3829                            fwname, err);
3830                 return err;
3831         }
3832
3833         bt_dev_info(hdev, "using rampatch file: %s", fwname);
3834
3835         rver = (struct qca_rampatch_version *)(fw->data + info->ver_offset);
3836         rver_rom_low = le16_to_cpu(rver->rom_version_low);
3837         rver_patch = le16_to_cpu(rver->patch_version);
3838
3839         if (ver_rom & ~0xffffU) {
3840                 rver_rom_high = le16_to_cpu(rver->rom_version_high);
3841                 rver_rom = rver_rom_high << 16 | rver_rom_low;
3842         } else {
3843                 rver_rom = rver_rom_low;
3844         }
3845
3846         bt_dev_info(hdev, "QCA: patch rome 0x%x build 0x%x, "
3847                     "firmware rome 0x%x build 0x%x",
3848                     rver_rom, rver_patch, ver_rom, ver_patch);
3849
3850         if (rver_rom != ver_rom || rver_patch <= ver_patch) {
3851                 bt_dev_err(hdev, "rampatch file version did not match with firmware");
3852                 err = -EINVAL;
3853                 goto done;
3854         }
3855
3856         err = btusb_setup_qca_download_fw(hdev, fw, info->rampatch_hdr);
3857
3858 done:
3859         release_firmware(fw);
3860
3861         return err;
3862 }
3863
3864 static void btusb_generate_qca_nvm_name(char *fwname, size_t max_size,
3865                                         const struct qca_version *ver)
3866 {
3867         u32 rom_version = le32_to_cpu(ver->rom_version);
3868         u16 flag = le16_to_cpu(ver->flag);
3869
3870         if (((flag >> 8) & 0xff) == QCA_FLAG_MULTI_NVM) {
3871                 /* The board_id should be split into two bytes
3872                  * The 1st byte is chip ID, and the 2nd byte is platform ID
3873                  * For example, board ID 0x010A, 0x01 is platform ID. 0x0A is chip ID
3874                  * we have several platforms, and platform IDs are continuously added
3875                  * Platform ID:
3876                  * 0x00 is for Mobile
3877                  * 0x01 is for X86
3878                  * 0x02 is for Automotive
3879                  * 0x03 is for Consumer electronic
3880                  */
3881                 u16 board_id = (ver->chip_id << 8) + ver->platform_id;
3882                 const char *variant;
3883
3884                 switch (le32_to_cpu(ver->ram_version)) {
3885                 case WCN6855_2_0_RAM_VERSION_GF:
3886                 case WCN6855_2_1_RAM_VERSION_GF:
3887                         variant = "_gf";
3888                         break;
3889                 default:
3890                         variant = "";
3891                         break;
3892                 }
3893
3894                 if (board_id == 0) {
3895                         snprintf(fwname, max_size, "qca/nvm_usb_%08x%s.bin",
3896                                 rom_version, variant);
3897                 } else {
3898                         snprintf(fwname, max_size, "qca/nvm_usb_%08x%s_%04x.bin",
3899                                 rom_version, variant, board_id);
3900                 }
3901         } else {
3902                 snprintf(fwname, max_size, "qca/nvm_usb_%08x.bin",
3903                         rom_version);
3904         }
3905
3906 }
3907
3908 static int btusb_setup_qca_load_nvm(struct hci_dev *hdev,
3909                                     struct qca_version *ver,
3910                                     const struct qca_device_info *info)
3911 {
3912         const struct firmware *fw;
3913         char fwname[64];
3914         int err;
3915
3916         btusb_generate_qca_nvm_name(fwname, sizeof(fwname), ver);
3917
3918         err = request_firmware(&fw, fwname, &hdev->dev);
3919         if (err) {
3920                 bt_dev_err(hdev, "failed to request NVM file: %s (%d)",
3921                            fwname, err);
3922                 return err;
3923         }
3924
3925         bt_dev_info(hdev, "using NVM file: %s", fwname);
3926
3927         err = btusb_setup_qca_download_fw(hdev, fw, info->nvm_hdr);
3928
3929         release_firmware(fw);
3930
3931         return err;
3932 }
3933
3934 /* identify the ROM version and check whether patches are needed */
3935 static bool btusb_qca_need_patch(struct usb_device *udev)
3936 {
3937         struct qca_version ver;
3938
3939         if (btusb_qca_send_vendor_req(udev, QCA_GET_TARGET_VERSION, &ver,
3940                                       sizeof(ver)) < 0)
3941                 return false;
3942         /* only low ROM versions need patches */
3943         return !(le32_to_cpu(ver.rom_version) & ~0xffffU);
3944 }
3945
3946 static int btusb_setup_qca(struct hci_dev *hdev)
3947 {
3948         struct btusb_data *btdata = hci_get_drvdata(hdev);
3949         struct usb_device *udev = btdata->udev;
3950         const struct qca_device_info *info = NULL;
3951         struct qca_version ver;
3952         u32 ver_rom;
3953         u8 status;
3954         int i, err;
3955
3956         err = btusb_qca_send_vendor_req(udev, QCA_GET_TARGET_VERSION, &ver,
3957                                         sizeof(ver));
3958         if (err < 0)
3959                 return err;
3960
3961         ver_rom = le32_to_cpu(ver.rom_version);
3962
3963         for (i = 0; i < ARRAY_SIZE(qca_devices_table); i++) {
3964                 if (ver_rom == qca_devices_table[i].rom_version)
3965                         info = &qca_devices_table[i];
3966         }
3967         if (!info) {
3968                 /* If the rom_version is not matched in the qca_devices_table
3969                  * and the high ROM version is not zero, we assume this chip no
3970                  * need to load the rampatch and nvm.
3971                  */
3972                 if (ver_rom & ~0xffffU)
3973                         return 0;
3974
3975                 bt_dev_err(hdev, "don't support firmware rome 0x%x", ver_rom);
3976                 return -ENODEV;
3977         }
3978
3979         err = btusb_qca_send_vendor_req(udev, QCA_CHECK_STATUS, &status,
3980                                         sizeof(status));
3981         if (err < 0)
3982                 return err;
3983
3984         if (!(status & QCA_PATCH_UPDATED)) {
3985                 err = btusb_setup_qca_load_rampatch(hdev, &ver, info);
3986                 if (err < 0)
3987                         return err;
3988         }
3989
3990         err = btusb_qca_send_vendor_req(udev, QCA_GET_TARGET_VERSION, &ver,
3991                                         sizeof(ver));
3992         if (err < 0)
3993                 return err;
3994
3995         btdata->qca_dump.fw_version = le32_to_cpu(ver.patch_version);
3996         btdata->qca_dump.controller_id = le32_to_cpu(ver.rom_version);
3997
3998         if (!(status & QCA_SYSCFG_UPDATED)) {
3999                 err = btusb_setup_qca_load_nvm(hdev, &ver, info);
4000                 if (err < 0)
4001                         return err;
4002
4003                 /* WCN6855 2.1 and later will reset to apply firmware downloaded here, so
4004                  * wait ~100ms for reset Done then go ahead, otherwise, it maybe
4005                  * cause potential enable failure.
4006                  */
4007                 if (info->rom_version >= 0x00130201)
4008                         msleep(QCA_BT_RESET_WAIT_MS);
4009         }
4010
4011         /* Mark HCI_OP_ENHANCED_SETUP_SYNC_CONN as broken as it doesn't seem to
4012          * work with the likes of HSP/HFP mSBC.
4013          */
4014         set_bit(HCI_QUIRK_BROKEN_ENHANCED_SETUP_SYNC_CONN, &hdev->quirks);
4015
4016         return 0;
4017 }
4018
4019 static inline int __set_diag_interface(struct hci_dev *hdev)
4020 {
4021         struct btusb_data *data = hci_get_drvdata(hdev);
4022         struct usb_interface *intf = data->diag;
4023         int i;
4024
4025         if (!data->diag)
4026                 return -ENODEV;
4027
4028         data->diag_tx_ep = NULL;
4029         data->diag_rx_ep = NULL;
4030
4031         for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
4032                 struct usb_endpoint_descriptor *ep_desc;
4033
4034                 ep_desc = &intf->cur_altsetting->endpoint[i].desc;
4035
4036                 if (!data->diag_tx_ep && usb_endpoint_is_bulk_out(ep_desc)) {
4037                         data->diag_tx_ep = ep_desc;
4038                         continue;
4039                 }
4040
4041                 if (!data->diag_rx_ep && usb_endpoint_is_bulk_in(ep_desc)) {
4042                         data->diag_rx_ep = ep_desc;
4043                         continue;
4044                 }
4045         }
4046
4047         if (!data->diag_tx_ep || !data->diag_rx_ep) {
4048                 bt_dev_err(hdev, "invalid diagnostic descriptors");
4049                 return -ENODEV;
4050         }
4051
4052         return 0;
4053 }
4054
4055 static struct urb *alloc_diag_urb(struct hci_dev *hdev, bool enable)
4056 {
4057         struct btusb_data *data = hci_get_drvdata(hdev);
4058         struct sk_buff *skb;
4059         struct urb *urb;
4060         unsigned int pipe;
4061
4062         if (!data->diag_tx_ep)
4063                 return ERR_PTR(-ENODEV);
4064
4065         urb = usb_alloc_urb(0, GFP_KERNEL);
4066         if (!urb)
4067                 return ERR_PTR(-ENOMEM);
4068
4069         skb = bt_skb_alloc(2, GFP_KERNEL);
4070         if (!skb) {
4071                 usb_free_urb(urb);
4072                 return ERR_PTR(-ENOMEM);
4073         }
4074
4075         skb_put_u8(skb, 0xf0);
4076         skb_put_u8(skb, enable);
4077
4078         pipe = usb_sndbulkpipe(data->udev, data->diag_tx_ep->bEndpointAddress);
4079
4080         usb_fill_bulk_urb(urb, data->udev, pipe,
4081                           skb->data, skb->len, btusb_tx_complete, skb);
4082
4083         skb->dev = (void *)hdev;
4084
4085         return urb;
4086 }
4087
4088 static int btusb_bcm_set_diag(struct hci_dev *hdev, bool enable)
4089 {
4090         struct btusb_data *data = hci_get_drvdata(hdev);
4091         struct urb *urb;
4092
4093         if (!data->diag)
4094                 return -ENODEV;
4095
4096         if (!test_bit(HCI_RUNNING, &hdev->flags))
4097                 return -ENETDOWN;
4098
4099         urb = alloc_diag_urb(hdev, enable);
4100         if (IS_ERR(urb))
4101                 return PTR_ERR(urb);
4102
4103         return submit_or_queue_tx_urb(hdev, urb);
4104 }
4105
4106 #ifdef CONFIG_PM
4107 static irqreturn_t btusb_oob_wake_handler(int irq, void *priv)
4108 {
4109         struct btusb_data *data = priv;
4110
4111         pm_wakeup_event(&data->udev->dev, 0);
4112         pm_system_wakeup();
4113
4114         /* Disable only if not already disabled (keep it balanced) */
4115         if (test_and_clear_bit(BTUSB_OOB_WAKE_ENABLED, &data->flags)) {
4116                 disable_irq_nosync(irq);
4117                 disable_irq_wake(irq);
4118         }
4119         return IRQ_HANDLED;
4120 }
4121
4122 static const struct of_device_id btusb_match_table[] = {
4123         { .compatible = "usb1286,204e" },
4124         { .compatible = "usbcf3,e300" }, /* QCA6174A */
4125         { .compatible = "usb4ca,301a" }, /* QCA6174A (Lite-On) */
4126         { }
4127 };
4128 MODULE_DEVICE_TABLE(of, btusb_match_table);
4129
4130 /* Use an oob wakeup pin? */
4131 static int btusb_config_oob_wake(struct hci_dev *hdev)
4132 {
4133         struct btusb_data *data = hci_get_drvdata(hdev);
4134         struct device *dev = &data->udev->dev;
4135         int irq, ret;
4136
4137         clear_bit(BTUSB_OOB_WAKE_ENABLED, &data->flags);
4138
4139         if (!of_match_device(btusb_match_table, dev))
4140                 return 0;
4141
4142         /* Move on if no IRQ specified */
4143         irq = of_irq_get_byname(dev->of_node, "wakeup");
4144         if (irq <= 0) {
4145                 bt_dev_dbg(hdev, "%s: no OOB Wakeup IRQ in DT", __func__);
4146                 return 0;
4147         }
4148
4149         irq_set_status_flags(irq, IRQ_NOAUTOEN);
4150         ret = devm_request_irq(&hdev->dev, irq, btusb_oob_wake_handler,
4151                                0, "OOB Wake-on-BT", data);
4152         if (ret) {
4153                 bt_dev_err(hdev, "%s: IRQ request failed", __func__);
4154                 return ret;
4155         }
4156
4157         ret = device_init_wakeup(dev, true);
4158         if (ret) {
4159                 bt_dev_err(hdev, "%s: failed to init_wakeup", __func__);
4160                 return ret;
4161         }
4162
4163         data->oob_wake_irq = irq;
4164         bt_dev_info(hdev, "OOB Wake-on-BT configured at IRQ %u", irq);
4165         return 0;
4166 }
4167 #endif
4168
4169 static void btusb_check_needs_reset_resume(struct usb_interface *intf)
4170 {
4171         if (dmi_check_system(btusb_needs_reset_resume_table))
4172                 interface_to_usbdev(intf)->quirks |= USB_QUIRK_RESET_RESUME;
4173 }
4174
4175 static bool btusb_wakeup(struct hci_dev *hdev)
4176 {
4177         struct btusb_data *data = hci_get_drvdata(hdev);
4178
4179         return device_may_wakeup(&data->udev->dev);
4180 }
4181
4182 static int btusb_shutdown_qca(struct hci_dev *hdev)
4183 {
4184         struct sk_buff *skb;
4185
4186         skb = __hci_cmd_sync(hdev, HCI_OP_RESET, 0, NULL, HCI_INIT_TIMEOUT);
4187         if (IS_ERR(skb)) {
4188                 bt_dev_err(hdev, "HCI reset during shutdown failed");
4189                 return PTR_ERR(skb);
4190         }
4191         kfree_skb(skb);
4192
4193         return 0;
4194 }
4195
4196 static ssize_t force_poll_sync_read(struct file *file, char __user *user_buf,
4197                                     size_t count, loff_t *ppos)
4198 {
4199         struct btusb_data *data = file->private_data;
4200         char buf[3];
4201
4202         buf[0] = data->poll_sync ? 'Y' : 'N';
4203         buf[1] = '\n';
4204         buf[2] = '\0';
4205         return simple_read_from_buffer(user_buf, count, ppos, buf, 2);
4206 }
4207
4208 static ssize_t force_poll_sync_write(struct file *file,
4209                                      const char __user *user_buf,
4210                                      size_t count, loff_t *ppos)
4211 {
4212         struct btusb_data *data = file->private_data;
4213         bool enable;
4214         int err;
4215
4216         err = kstrtobool_from_user(user_buf, count, &enable);
4217         if (err)
4218                 return err;
4219
4220         /* Only allow changes while the adapter is down */
4221         if (test_bit(HCI_UP, &data->hdev->flags))
4222                 return -EPERM;
4223
4224         if (data->poll_sync == enable)
4225                 return -EALREADY;
4226
4227         data->poll_sync = enable;
4228
4229         return count;
4230 }
4231
4232 static const struct file_operations force_poll_sync_fops = {
4233         .open           = simple_open,
4234         .read           = force_poll_sync_read,
4235         .write          = force_poll_sync_write,
4236         .llseek         = default_llseek,
4237 };
4238
4239 static int btusb_probe(struct usb_interface *intf,
4240                        const struct usb_device_id *id)
4241 {
4242         struct usb_endpoint_descriptor *ep_desc;
4243         struct gpio_desc *reset_gpio;
4244         struct btusb_data *data;
4245         struct hci_dev *hdev;
4246         unsigned ifnum_base;
4247         int i, err, priv_size;
4248
4249         BT_DBG("intf %p id %p", intf, id);
4250
4251         if ((id->driver_info & BTUSB_IFNUM_2) &&
4252             (intf->cur_altsetting->desc.bInterfaceNumber != 0) &&
4253             (intf->cur_altsetting->desc.bInterfaceNumber != 2))
4254                 return -ENODEV;
4255
4256         ifnum_base = intf->cur_altsetting->desc.bInterfaceNumber;
4257
4258         if (!id->driver_info) {
4259                 const struct usb_device_id *match;
4260
4261                 match = usb_match_id(intf, blacklist_table);
4262                 if (match)
4263                         id = match;
4264         }
4265
4266         if (id->driver_info == BTUSB_IGNORE)
4267                 return -ENODEV;
4268
4269         if (id->driver_info & BTUSB_ATH3012) {
4270                 struct usb_device *udev = interface_to_usbdev(intf);
4271
4272                 /* Old firmware would otherwise let ath3k driver load
4273                  * patch and sysconfig files
4274                  */
4275                 if (le16_to_cpu(udev->descriptor.bcdDevice) <= 0x0001 &&
4276                     !btusb_qca_need_patch(udev))
4277                         return -ENODEV;
4278         }
4279
4280         data = devm_kzalloc(&intf->dev, sizeof(*data), GFP_KERNEL);
4281         if (!data)
4282                 return -ENOMEM;
4283
4284         for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
4285                 ep_desc = &intf->cur_altsetting->endpoint[i].desc;
4286
4287                 if (!data->intr_ep && usb_endpoint_is_int_in(ep_desc)) {
4288                         data->intr_ep = ep_desc;
4289                         continue;
4290                 }
4291
4292                 if (!data->bulk_tx_ep && usb_endpoint_is_bulk_out(ep_desc)) {
4293                         data->bulk_tx_ep = ep_desc;
4294                         continue;
4295                 }
4296
4297                 if (!data->bulk_rx_ep && usb_endpoint_is_bulk_in(ep_desc)) {
4298                         data->bulk_rx_ep = ep_desc;
4299                         continue;
4300                 }
4301         }
4302
4303         if (!data->intr_ep || !data->bulk_tx_ep || !data->bulk_rx_ep)
4304                 return -ENODEV;
4305
4306         if (id->driver_info & BTUSB_AMP) {
4307                 data->cmdreq_type = USB_TYPE_CLASS | 0x01;
4308                 data->cmdreq = 0x2b;
4309         } else {
4310                 data->cmdreq_type = USB_TYPE_CLASS;
4311                 data->cmdreq = 0x00;
4312         }
4313
4314         data->udev = interface_to_usbdev(intf);
4315         data->intf = intf;
4316
4317         INIT_WORK(&data->work, btusb_work);
4318         INIT_WORK(&data->waker, btusb_waker);
4319         INIT_DELAYED_WORK(&data->rx_work, btusb_rx_work);
4320
4321         skb_queue_head_init(&data->acl_q);
4322
4323         init_usb_anchor(&data->deferred);
4324         init_usb_anchor(&data->tx_anchor);
4325         spin_lock_init(&data->txlock);
4326
4327         init_usb_anchor(&data->intr_anchor);
4328         init_usb_anchor(&data->bulk_anchor);
4329         init_usb_anchor(&data->isoc_anchor);
4330         init_usb_anchor(&data->diag_anchor);
4331         init_usb_anchor(&data->ctrl_anchor);
4332         spin_lock_init(&data->rxlock);
4333
4334         priv_size = 0;
4335
4336         data->recv_event = hci_recv_frame;
4337         data->recv_bulk = btusb_recv_bulk;
4338
4339         if (id->driver_info & BTUSB_INTEL_COMBINED) {
4340                 /* Allocate extra space for Intel device */
4341                 priv_size += sizeof(struct btintel_data);
4342
4343                 /* Override the rx handlers */
4344                 data->recv_event = btusb_recv_event_intel;
4345                 data->recv_bulk = btusb_recv_bulk_intel;
4346         } else if (id->driver_info & BTUSB_REALTEK) {
4347                 /* Allocate extra space for Realtek device */
4348                 priv_size += sizeof(struct btrealtek_data);
4349
4350                 data->recv_event = btusb_recv_event_realtek;
4351         } else if (id->driver_info & BTUSB_MEDIATEK) {
4352                 /* Allocate extra space for Mediatek device */
4353                 priv_size += sizeof(struct btmediatek_data);
4354         }
4355
4356         data->recv_acl = hci_recv_frame;
4357
4358         hdev = hci_alloc_dev_priv(priv_size);
4359         if (!hdev)
4360                 return -ENOMEM;
4361
4362         hdev->bus = HCI_USB;
4363         hci_set_drvdata(hdev, data);
4364
4365         if (id->driver_info & BTUSB_AMP)
4366                 hdev->dev_type = HCI_AMP;
4367         else
4368                 hdev->dev_type = HCI_PRIMARY;
4369
4370         data->hdev = hdev;
4371
4372         SET_HCIDEV_DEV(hdev, &intf->dev);
4373
4374         reset_gpio = gpiod_get_optional(&data->udev->dev, "reset",
4375                                         GPIOD_OUT_LOW);
4376         if (IS_ERR(reset_gpio)) {
4377                 err = PTR_ERR(reset_gpio);
4378                 goto out_free_dev;
4379         } else if (reset_gpio) {
4380                 data->reset_gpio = reset_gpio;
4381         }
4382
4383         hdev->open   = btusb_open;
4384         hdev->close  = btusb_close;
4385         hdev->flush  = btusb_flush;
4386         hdev->send   = btusb_send_frame;
4387         hdev->notify = btusb_notify;
4388         hdev->wakeup = btusb_wakeup;
4389
4390 #ifdef CONFIG_PM
4391         err = btusb_config_oob_wake(hdev);
4392         if (err)
4393                 goto out_free_dev;
4394
4395         /* Marvell devices may need a specific chip configuration */
4396         if (id->driver_info & BTUSB_MARVELL && data->oob_wake_irq) {
4397                 err = marvell_config_oob_wake(hdev);
4398                 if (err)
4399                         goto out_free_dev;
4400         }
4401 #endif
4402         if (id->driver_info & BTUSB_CW6622)
4403                 set_bit(HCI_QUIRK_BROKEN_STORED_LINK_KEY, &hdev->quirks);
4404
4405         if (id->driver_info & BTUSB_BCM2045)
4406                 set_bit(HCI_QUIRK_BROKEN_STORED_LINK_KEY, &hdev->quirks);
4407
4408         if (id->driver_info & BTUSB_BCM92035)
4409                 hdev->setup = btusb_setup_bcm92035;
4410
4411         if (IS_ENABLED(CONFIG_BT_HCIBTUSB_BCM) &&
4412             (id->driver_info & BTUSB_BCM_PATCHRAM)) {
4413                 hdev->manufacturer = 15;
4414                 hdev->setup = btbcm_setup_patchram;
4415                 hdev->set_diag = btusb_bcm_set_diag;
4416                 hdev->set_bdaddr = btbcm_set_bdaddr;
4417
4418                 /* Broadcom LM_DIAG Interface numbers are hardcoded */
4419                 data->diag = usb_ifnum_to_if(data->udev, ifnum_base + 2);
4420         }
4421
4422         if (IS_ENABLED(CONFIG_BT_HCIBTUSB_BCM) &&
4423             (id->driver_info & BTUSB_BCM_APPLE)) {
4424                 hdev->manufacturer = 15;
4425                 hdev->setup = btbcm_setup_apple;
4426                 hdev->set_diag = btusb_bcm_set_diag;
4427
4428                 /* Broadcom LM_DIAG Interface numbers are hardcoded */
4429                 data->diag = usb_ifnum_to_if(data->udev, ifnum_base + 2);
4430         }
4431
4432         /* Combined Intel Device setup to support multiple setup routine */
4433         if (id->driver_info & BTUSB_INTEL_COMBINED) {
4434                 err = btintel_configure_setup(hdev, btusb_driver.name);
4435                 if (err)
4436                         goto out_free_dev;
4437
4438                 /* Transport specific configuration */
4439                 hdev->send = btusb_send_frame_intel;
4440                 hdev->cmd_timeout = btusb_intel_cmd_timeout;
4441
4442                 if (id->driver_info & BTUSB_INTEL_NO_WBS_SUPPORT)
4443                         btintel_set_flag(hdev, INTEL_ROM_LEGACY_NO_WBS_SUPPORT);
4444
4445                 if (id->driver_info & BTUSB_INTEL_BROKEN_INITIAL_NCMD)
4446                         btintel_set_flag(hdev, INTEL_BROKEN_INITIAL_NCMD);
4447
4448                 if (id->driver_info & BTUSB_INTEL_BROKEN_SHUTDOWN_LED)
4449                         btintel_set_flag(hdev, INTEL_BROKEN_SHUTDOWN_LED);
4450         }
4451
4452         if (id->driver_info & BTUSB_MARVELL)
4453                 hdev->set_bdaddr = btusb_set_bdaddr_marvell;
4454
4455         if (IS_ENABLED(CONFIG_BT_HCIBTUSB_MTK) &&
4456             (id->driver_info & BTUSB_MEDIATEK)) {
4457                 hdev->setup = btusb_mtk_setup;
4458                 hdev->shutdown = btusb_mtk_shutdown;
4459                 hdev->manufacturer = 70;
4460                 hdev->cmd_timeout = btmtk_reset_sync;
4461                 hdev->set_bdaddr = btmtk_set_bdaddr;
4462                 set_bit(HCI_QUIRK_BROKEN_ENHANCED_SETUP_SYNC_CONN, &hdev->quirks);
4463                 set_bit(HCI_QUIRK_NON_PERSISTENT_SETUP, &hdev->quirks);
4464                 data->recv_acl = btusb_recv_acl_mtk;
4465         }
4466
4467         if (id->driver_info & BTUSB_SWAVE) {
4468                 set_bit(HCI_QUIRK_FIXUP_INQUIRY_MODE, &hdev->quirks);
4469                 set_bit(HCI_QUIRK_BROKEN_LOCAL_COMMANDS, &hdev->quirks);
4470         }
4471
4472         if (id->driver_info & BTUSB_INTEL_BOOT) {
4473                 hdev->manufacturer = 2;
4474                 set_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks);
4475         }
4476
4477         if (id->driver_info & BTUSB_ATH3012) {
4478                 data->setup_on_usb = btusb_setup_qca;
4479                 hdev->set_bdaddr = btusb_set_bdaddr_ath3012;
4480                 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks);
4481                 set_bit(HCI_QUIRK_STRICT_DUPLICATE_FILTER, &hdev->quirks);
4482         }
4483
4484         if (id->driver_info & BTUSB_QCA_ROME) {
4485                 data->setup_on_usb = btusb_setup_qca;
4486                 hdev->set_bdaddr = btusb_set_bdaddr_ath3012;
4487                 hdev->cmd_timeout = btusb_qca_cmd_timeout;
4488                 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks);
4489                 btusb_check_needs_reset_resume(intf);
4490         }
4491
4492         if (id->driver_info & BTUSB_QCA_WCN6855) {
4493                 data->qca_dump.id_vendor = id->idVendor;
4494                 data->qca_dump.id_product = id->idProduct;
4495                 data->recv_event = btusb_recv_evt_qca;
4496                 data->recv_acl = btusb_recv_acl_qca;
4497                 hci_devcd_register(hdev, btusb_coredump_qca, btusb_dump_hdr_qca, NULL);
4498                 data->setup_on_usb = btusb_setup_qca;
4499                 hdev->shutdown = btusb_shutdown_qca;
4500                 hdev->set_bdaddr = btusb_set_bdaddr_wcn6855;
4501                 hdev->cmd_timeout = btusb_qca_cmd_timeout;
4502                 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks);
4503                 hci_set_msft_opcode(hdev, 0xFD70);
4504         }
4505
4506         if (id->driver_info & BTUSB_AMP) {
4507                 /* AMP controllers do not support SCO packets */
4508                 data->isoc = NULL;
4509         } else {
4510                 /* Interface orders are hardcoded in the specification */
4511                 data->isoc = usb_ifnum_to_if(data->udev, ifnum_base + 1);
4512                 data->isoc_ifnum = ifnum_base + 1;
4513         }
4514
4515         if (IS_ENABLED(CONFIG_BT_HCIBTUSB_RTL) &&
4516             (id->driver_info & BTUSB_REALTEK)) {
4517                 btrtl_set_driver_name(hdev, btusb_driver.name);
4518                 hdev->setup = btusb_setup_realtek;
4519                 hdev->shutdown = btrtl_shutdown_realtek;
4520                 hdev->cmd_timeout = btusb_rtl_cmd_timeout;
4521                 hdev->hw_error = btusb_rtl_hw_error;
4522
4523                 /* Realtek devices need to set remote wakeup on auto-suspend */
4524                 set_bit(BTUSB_WAKEUP_AUTOSUSPEND, &data->flags);
4525                 set_bit(BTUSB_USE_ALT3_FOR_WBS, &data->flags);
4526         }
4527
4528         if (id->driver_info & BTUSB_ACTIONS_SEMI) {
4529                 /* Support is advertised, but not implemented */
4530                 set_bit(HCI_QUIRK_BROKEN_ERR_DATA_REPORTING, &hdev->quirks);
4531                 set_bit(HCI_QUIRK_BROKEN_READ_TRANSMIT_POWER, &hdev->quirks);
4532                 set_bit(HCI_QUIRK_BROKEN_SET_RPA_TIMEOUT, &hdev->quirks);
4533                 set_bit(HCI_QUIRK_BROKEN_EXT_SCAN, &hdev->quirks);
4534         }
4535
4536         if (!reset)
4537                 set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
4538
4539         if (force_scofix || id->driver_info & BTUSB_WRONG_SCO_MTU) {
4540                 if (!disable_scofix)
4541                         set_bit(HCI_QUIRK_FIXUP_BUFFER_SIZE, &hdev->quirks);
4542         }
4543
4544         if (id->driver_info & BTUSB_BROKEN_ISOC)
4545                 data->isoc = NULL;
4546
4547         if (id->driver_info & BTUSB_WIDEBAND_SPEECH)
4548                 set_bit(HCI_QUIRK_WIDEBAND_SPEECH_SUPPORTED, &hdev->quirks);
4549
4550         if (id->driver_info & BTUSB_VALID_LE_STATES)
4551                 set_bit(HCI_QUIRK_VALID_LE_STATES, &hdev->quirks);
4552
4553         if (id->driver_info & BTUSB_DIGIANSWER) {
4554                 data->cmdreq_type = USB_TYPE_VENDOR;
4555                 set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
4556         }
4557
4558         if (id->driver_info & BTUSB_CSR) {
4559                 struct usb_device *udev = data->udev;
4560                 u16 bcdDevice = le16_to_cpu(udev->descriptor.bcdDevice);
4561
4562                 /* Old firmware would otherwise execute USB reset */
4563                 if (bcdDevice < 0x117)
4564                         set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
4565
4566                 /* This must be set first in case we disable it for fakes */
4567                 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks);
4568
4569                 /* Fake CSR devices with broken commands */
4570                 if (le16_to_cpu(udev->descriptor.idVendor)  == 0x0a12 &&
4571                     le16_to_cpu(udev->descriptor.idProduct) == 0x0001)
4572                         hdev->setup = btusb_setup_csr;
4573         }
4574
4575         if (id->driver_info & BTUSB_SNIFFER) {
4576                 struct usb_device *udev = data->udev;
4577
4578                 /* New sniffer firmware has crippled HCI interface */
4579                 if (le16_to_cpu(udev->descriptor.bcdDevice) > 0x997)
4580                         set_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks);
4581         }
4582
4583         if (id->driver_info & BTUSB_INTEL_BOOT) {
4584                 /* A bug in the bootloader causes that interrupt interface is
4585                  * only enabled after receiving SetInterface(0, AltSetting=0).
4586                  */
4587                 err = usb_set_interface(data->udev, 0, 0);
4588                 if (err < 0) {
4589                         BT_ERR("failed to set interface 0, alt 0 %d", err);
4590                         goto out_free_dev;
4591                 }
4592         }
4593
4594         if (data->isoc) {
4595                 err = usb_driver_claim_interface(&btusb_driver,
4596                                                  data->isoc, data);
4597                 if (err < 0)
4598                         goto out_free_dev;
4599         }
4600
4601         if (IS_ENABLED(CONFIG_BT_HCIBTUSB_BCM) && data->diag) {
4602                 if (!usb_driver_claim_interface(&btusb_driver,
4603                                                 data->diag, data))
4604                         __set_diag_interface(hdev);
4605                 else
4606                         data->diag = NULL;
4607         }
4608
4609         if (enable_autosuspend)
4610                 usb_enable_autosuspend(data->udev);
4611
4612         data->poll_sync = enable_poll_sync;
4613
4614         err = hci_register_dev(hdev);
4615         if (err < 0)
4616                 goto out_free_dev;
4617
4618         usb_set_intfdata(intf, data);
4619
4620         debugfs_create_file("force_poll_sync", 0644, hdev->debugfs, data,
4621                             &force_poll_sync_fops);
4622
4623         return 0;
4624
4625 out_free_dev:
4626         if (data->reset_gpio)
4627                 gpiod_put(data->reset_gpio);
4628         hci_free_dev(hdev);
4629         return err;
4630 }
4631
4632 static void btusb_disconnect(struct usb_interface *intf)
4633 {
4634         struct btusb_data *data = usb_get_intfdata(intf);
4635         struct hci_dev *hdev;
4636
4637         BT_DBG("intf %p", intf);
4638
4639         if (!data)
4640                 return;
4641
4642         hdev = data->hdev;
4643         usb_set_intfdata(data->intf, NULL);
4644
4645         if (data->isoc)
4646                 usb_set_intfdata(data->isoc, NULL);
4647
4648         if (data->diag)
4649                 usb_set_intfdata(data->diag, NULL);
4650
4651         hci_unregister_dev(hdev);
4652
4653         if (intf == data->intf) {
4654                 if (data->isoc)
4655                         usb_driver_release_interface(&btusb_driver, data->isoc);
4656                 if (data->diag)
4657                         usb_driver_release_interface(&btusb_driver, data->diag);
4658         } else if (intf == data->isoc) {
4659                 if (data->diag)
4660                         usb_driver_release_interface(&btusb_driver, data->diag);
4661                 usb_driver_release_interface(&btusb_driver, data->intf);
4662         } else if (intf == data->diag) {
4663                 usb_driver_release_interface(&btusb_driver, data->intf);
4664                 if (data->isoc)
4665                         usb_driver_release_interface(&btusb_driver, data->isoc);
4666         }
4667
4668         if (data->oob_wake_irq)
4669                 device_init_wakeup(&data->udev->dev, false);
4670
4671         if (data->reset_gpio)
4672                 gpiod_put(data->reset_gpio);
4673
4674         hci_free_dev(hdev);
4675 }
4676
4677 #ifdef CONFIG_PM
4678 static int btusb_suspend(struct usb_interface *intf, pm_message_t message)
4679 {
4680         struct btusb_data *data = usb_get_intfdata(intf);
4681
4682         BT_DBG("intf %p", intf);
4683
4684         if (data->suspend_count++)
4685                 return 0;
4686
4687         spin_lock_irq(&data->txlock);
4688         if (!(PMSG_IS_AUTO(message) && data->tx_in_flight)) {
4689                 set_bit(BTUSB_SUSPENDING, &data->flags);
4690                 spin_unlock_irq(&data->txlock);
4691         } else {
4692                 spin_unlock_irq(&data->txlock);
4693                 data->suspend_count--;
4694                 return -EBUSY;
4695         }
4696
4697         cancel_work_sync(&data->work);
4698
4699         btusb_stop_traffic(data);
4700         usb_kill_anchored_urbs(&data->tx_anchor);
4701
4702         if (data->oob_wake_irq && device_may_wakeup(&data->udev->dev)) {
4703                 set_bit(BTUSB_OOB_WAKE_ENABLED, &data->flags);
4704                 enable_irq_wake(data->oob_wake_irq);
4705                 enable_irq(data->oob_wake_irq);
4706         }
4707
4708         /* For global suspend, Realtek devices lose the loaded fw
4709          * in them. But for autosuspend, firmware should remain.
4710          * Actually, it depends on whether the usb host sends
4711          * set feature (enable wakeup) or not.
4712          */
4713         if (test_bit(BTUSB_WAKEUP_AUTOSUSPEND, &data->flags)) {
4714                 if (PMSG_IS_AUTO(message) &&
4715                     device_can_wakeup(&data->udev->dev))
4716                         data->udev->do_remote_wakeup = 1;
4717                 else if (!PMSG_IS_AUTO(message) &&
4718                          !device_may_wakeup(&data->udev->dev)) {
4719                         data->udev->do_remote_wakeup = 0;
4720                         data->udev->reset_resume = 1;
4721                 }
4722         }
4723
4724         return 0;
4725 }
4726
4727 static void play_deferred(struct btusb_data *data)
4728 {
4729         struct urb *urb;
4730         int err;
4731
4732         while ((urb = usb_get_from_anchor(&data->deferred))) {
4733                 usb_anchor_urb(urb, &data->tx_anchor);
4734
4735                 err = usb_submit_urb(urb, GFP_ATOMIC);
4736                 if (err < 0) {
4737                         if (err != -EPERM && err != -ENODEV)
4738                                 BT_ERR("%s urb %p submission failed (%d)",
4739                                        data->hdev->name, urb, -err);
4740                         kfree(urb->setup_packet);
4741                         usb_unanchor_urb(urb);
4742                         usb_free_urb(urb);
4743                         break;
4744                 }
4745
4746                 data->tx_in_flight++;
4747                 usb_free_urb(urb);
4748         }
4749
4750         /* Cleanup the rest deferred urbs. */
4751         while ((urb = usb_get_from_anchor(&data->deferred))) {
4752                 kfree(urb->setup_packet);
4753                 usb_free_urb(urb);
4754         }
4755 }
4756
4757 static int btusb_resume(struct usb_interface *intf)
4758 {
4759         struct btusb_data *data = usb_get_intfdata(intf);
4760         struct hci_dev *hdev = data->hdev;
4761         int err = 0;
4762
4763         BT_DBG("intf %p", intf);
4764
4765         if (--data->suspend_count)
4766                 return 0;
4767
4768         /* Disable only if not already disabled (keep it balanced) */
4769         if (test_and_clear_bit(BTUSB_OOB_WAKE_ENABLED, &data->flags)) {
4770                 disable_irq(data->oob_wake_irq);
4771                 disable_irq_wake(data->oob_wake_irq);
4772         }
4773
4774         if (!test_bit(HCI_RUNNING, &hdev->flags))
4775                 goto done;
4776
4777         if (test_bit(BTUSB_INTR_RUNNING, &data->flags)) {
4778                 err = btusb_submit_intr_urb(hdev, GFP_NOIO);
4779                 if (err < 0) {
4780                         clear_bit(BTUSB_INTR_RUNNING, &data->flags);
4781                         goto failed;
4782                 }
4783         }
4784
4785         if (test_bit(BTUSB_BULK_RUNNING, &data->flags)) {
4786                 err = btusb_submit_bulk_urb(hdev, GFP_NOIO);
4787                 if (err < 0) {
4788                         clear_bit(BTUSB_BULK_RUNNING, &data->flags);
4789                         goto failed;
4790                 }
4791
4792                 btusb_submit_bulk_urb(hdev, GFP_NOIO);
4793         }
4794
4795         if (test_bit(BTUSB_ISOC_RUNNING, &data->flags)) {
4796                 if (btusb_submit_isoc_urb(hdev, GFP_NOIO) < 0)
4797                         clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
4798                 else
4799                         btusb_submit_isoc_urb(hdev, GFP_NOIO);
4800         }
4801
4802         spin_lock_irq(&data->txlock);
4803         play_deferred(data);
4804         clear_bit(BTUSB_SUSPENDING, &data->flags);
4805         spin_unlock_irq(&data->txlock);
4806         schedule_work(&data->work);
4807
4808         return 0;
4809
4810 failed:
4811         usb_scuttle_anchored_urbs(&data->deferred);
4812 done:
4813         spin_lock_irq(&data->txlock);
4814         clear_bit(BTUSB_SUSPENDING, &data->flags);
4815         spin_unlock_irq(&data->txlock);
4816
4817         return err;
4818 }
4819 #endif
4820
4821 #ifdef CONFIG_DEV_COREDUMP
4822 static void btusb_coredump(struct device *dev)
4823 {
4824         struct btusb_data *data = dev_get_drvdata(dev);
4825         struct hci_dev *hdev = data->hdev;
4826
4827         if (hdev->dump.coredump)
4828                 hdev->dump.coredump(hdev);
4829 }
4830 #endif
4831
4832 static struct usb_driver btusb_driver = {
4833         .name           = "btusb",
4834         .probe          = btusb_probe,
4835         .disconnect     = btusb_disconnect,
4836 #ifdef CONFIG_PM
4837         .suspend        = btusb_suspend,
4838         .resume         = btusb_resume,
4839 #endif
4840         .id_table       = btusb_table,
4841         .supports_autosuspend = 1,
4842         .disable_hub_initiated_lpm = 1,
4843
4844 #ifdef CONFIG_DEV_COREDUMP
4845         .drvwrap = {
4846                 .driver = {
4847                         .coredump = btusb_coredump,
4848                 },
4849         },
4850 #endif
4851 };
4852
4853 module_usb_driver(btusb_driver);
4854
4855 module_param(disable_scofix, bool, 0644);
4856 MODULE_PARM_DESC(disable_scofix, "Disable fixup of wrong SCO buffer size");
4857
4858 module_param(force_scofix, bool, 0644);
4859 MODULE_PARM_DESC(force_scofix, "Force fixup of wrong SCO buffers size");
4860
4861 module_param(enable_autosuspend, bool, 0644);
4862 MODULE_PARM_DESC(enable_autosuspend, "Enable USB autosuspend by default");
4863
4864 module_param(reset, bool, 0644);
4865 MODULE_PARM_DESC(reset, "Send HCI reset command on initialization");
4866
4867 MODULE_AUTHOR("Marcel Holtmann <marcel@holtmann.org>");
4868 MODULE_DESCRIPTION("Generic Bluetooth USB driver ver " VERSION);
4869 MODULE_VERSION(VERSION);
4870 MODULE_LICENSE("GPL");