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