drivers/bluetooth/btusb.c

   1 // SPDX-License-Identifier: GPL-2.0-or-later
   2 /*
   3  *
   4  *  Generic Bluetooth USB driver
   5  *
   6  *  Copyright (C) 2005-2008  Marcel Holtmann <marcel@holtmann.org>
   7  */
   8
   9 #include <linux/dmi.h>
  10 #include <linux/module.h>
  11 #include <linux/usb.h>
  12 #include <linux/usb/quirks.h>
  13 #include <linux/firmware.h>
  14 #include <linux/iopoll.h>
  15 #include <linux/of_device.h>
  16 #include <linux/of_irq.h>
  17 #include <linux/suspend.h>
  18 #include <linux/gpio/consumer.h>
  19 #include <linux/debugfs.h>
  20 #include <asm/unaligned.h>
  21
  22 #include <net/bluetooth/bluetooth.h>
  23 #include <net/bluetooth/hci_core.h>
  24
  25 #include "btintel.h"
  26 #include "btbcm.h"
  27 #include "btrtl.h"
  28 #include "btmtk.h"
  29
  30 #define VERSION "0.8"
  31
  32 static bool disable_scofix;
  33 static bool force_scofix;
  34 static bool enable_autosuspend = IS_ENABLED(CONFIG_BT_HCIBTUSB_AUTOSUSPEND);
  35 static bool enable_poll_sync = IS_ENABLED(CONFIG_BT_HCIBTUSB_POLL_SYNC);
  36 static bool reset = true;
  37
  38 static struct usb_driver btusb_driver;
  39
  40 #define BTUSB_IGNORE                    BIT(0)
  41 #define BTUSB_DIGIANSWER                BIT(1)
  42 #define BTUSB_CSR                       BIT(2)
  43 #define BTUSB_SNIFFER                   BIT(3)
  44 #define BTUSB_BCM92035                  BIT(4)
  45 #define BTUSB_BROKEN_ISOC               BIT(5)
  46 #define BTUSB_WRONG_SCO_MTU             BIT(6)
  47 #define BTUSB_ATH3012                   BIT(7)
  48 #define BTUSB_INTEL_COMBINED            BIT(8)
  49 #define BTUSB_INTEL_BOOT                BIT(9)
  50 #define BTUSB_BCM_PATCHRAM              BIT(10)
  51 #define BTUSB_MARVELL                   BIT(11)
  52 #define BTUSB_SWAVE                     BIT(12)
  53 #define BTUSB_AMP                       BIT(13)
  54 #define BTUSB_QCA_ROME                  BIT(14)
  55 #define BTUSB_BCM_APPLE                 BIT(15)
  56 #define BTUSB_REALTEK                   BIT(16)
  57 #define BTUSB_BCM2045                   BIT(17)
  58 #define BTUSB_IFNUM_2                   BIT(18)
  59 #define BTUSB_CW6622                    BIT(19)
  60 #define BTUSB_MEDIATEK                  BIT(20)
  61 #define BTUSB_WIDEBAND_SPEECH           BIT(21)
  62 #define BTUSB_VALID_LE_STATES           BIT(22)
  63 #define BTUSB_QCA_WCN6855               BIT(23)
  64 #define BTUSB_INTEL_BROKEN_SHUTDOWN_LED BIT(24)
  65 #define BTUSB_INTEL_BROKEN_INITIAL_NCMD BIT(25)
  66 #define BTUSB_INTEL_NO_WBS_SUPPORT      BIT(26)
  67 #define BTUSB_ACTIONS_SEMI              BIT(27)
  68
  69 static const struct usb_device_id btusb_table[] = {
  70         /* Generic Bluetooth USB device */
  71         { USB_DEVICE_INFO(0xe0, 0x01, 0x01) },
  72
  73         /* Generic Bluetooth AMP device */
  74         { USB_DEVICE_INFO(0xe0, 0x01, 0x04), .driver_info = BTUSB_AMP },
  75
  76         /* Generic Bluetooth USB interface */
  77         { USB_INTERFACE_INFO(0xe0, 0x01, 0x01) },
  78
  79         /* Apple-specific (Broadcom) devices */
  80         { USB_VENDOR_AND_INTERFACE_INFO(0x05ac, 0xff, 0x01, 0x01),
  81           .driver_info = BTUSB_BCM_APPLE | BTUSB_IFNUM_2 },
  82
  83         /* MediaTek MT76x0E */
  84         { USB_DEVICE(0x0e8d, 0x763f) },
  85
  86         /* Broadcom SoftSailing reporting vendor specific */
  87         { USB_DEVICE(0x0a5c, 0x21e1) },
  88
  89         /* Apple MacBookPro 7,1 */
  90         { USB_DEVICE(0x05ac, 0x8213) },
  91
  92         /* Apple iMac11,1 */
  93         { USB_DEVICE(0x05ac, 0x8215) },
  94
  95         /* Apple MacBookPro6,2 */
  96         { USB_DEVICE(0x05ac, 0x8218) },
  97
  98         /* Apple MacBookAir3,1, MacBookAir3,2 */
  99         { USB_DEVICE(0x05ac, 0x821b) },
 100
 101         /* Apple MacBookAir4,1 */
 102         { USB_DEVICE(0x05ac, 0x821f) },
 103
 104         /* Apple MacBookPro8,2 */
 105         { USB_DEVICE(0x05ac, 0x821a) },
 106
 107         /* Apple MacMini5,1 */
 108         { USB_DEVICE(0x05ac, 0x8281) },
 109
 110         /* AVM BlueFRITZ! USB v2.0 */
 111         { USB_DEVICE(0x057c, 0x3800), .driver_info = BTUSB_SWAVE },
 112
 113         /* Bluetooth Ultraport Module from IBM */
 114         { USB_DEVICE(0x04bf, 0x030a) },
 115
 116         /* ALPS Modules with non-standard id */
 117         { USB_DEVICE(0x044e, 0x3001) },
 118         { USB_DEVICE(0x044e, 0x3002) },
 119
 120         /* Ericsson with non-standard id */
 121         { USB_DEVICE(0x0bdb, 0x1002) },
 122
 123         /* Canyon CN-BTU1 with HID interfaces */
 124         { USB_DEVICE(0x0c10, 0x0000) },
 125
 126         /* Broadcom BCM20702B0 (Dynex/Insignia) */
 127         { USB_DEVICE(0x19ff, 0x0239), .driver_info = BTUSB_BCM_PATCHRAM },
 128
 129         /* Broadcom BCM43142A0 (Foxconn/Lenovo) */
 130         { USB_VENDOR_AND_INTERFACE_INFO(0x105b, 0xff, 0x01, 0x01),
 131           .driver_info = BTUSB_BCM_PATCHRAM },
 132
 133         /* Broadcom BCM920703 (HTC Vive) */
 134         { USB_VENDOR_AND_INTERFACE_INFO(0x0bb4, 0xff, 0x01, 0x01),
 135           .driver_info = BTUSB_BCM_PATCHRAM },
 136
 137         /* Foxconn - Hon Hai */
 138         { USB_VENDOR_AND_INTERFACE_INFO(0x0489, 0xff, 0x01, 0x01),
 139           .driver_info = BTUSB_BCM_PATCHRAM },
 140
 141         /* Lite-On Technology - Broadcom based */
 142         { USB_VENDOR_AND_INTERFACE_INFO(0x04ca, 0xff, 0x01, 0x01),
 143           .driver_info = BTUSB_BCM_PATCHRAM },
 144
 145         /* Broadcom devices with vendor specific id */
 146         { USB_VENDOR_AND_INTERFACE_INFO(0x0a5c, 0xff, 0x01, 0x01),
 147           .driver_info = BTUSB_BCM_PATCHRAM },
 148
 149         /* ASUSTek Computer - Broadcom based */
 150         { USB_VENDOR_AND_INTERFACE_INFO(0x0b05, 0xff, 0x01, 0x01),
 151           .driver_info = BTUSB_BCM_PATCHRAM },
 152
 153         /* Belkin F8065bf - Broadcom based */
 154         { USB_VENDOR_AND_INTERFACE_INFO(0x050d, 0xff, 0x01, 0x01),
 155           .driver_info = BTUSB_BCM_PATCHRAM },
 156
 157         /* IMC Networks - Broadcom based */
 158         { USB_VENDOR_AND_INTERFACE_INFO(0x13d3, 0xff, 0x01, 0x01),
 159           .driver_info = BTUSB_BCM_PATCHRAM },
 160
 161         /* Dell Computer - Broadcom based  */
 162         { USB_VENDOR_AND_INTERFACE_INFO(0x413c, 0xff, 0x01, 0x01),
 163           .driver_info = BTUSB_BCM_PATCHRAM },
 164
 165         /* Toshiba Corp - Broadcom based */
 166         { USB_VENDOR_AND_INTERFACE_INFO(0x0930, 0xff, 0x01, 0x01),
 167           .driver_info = BTUSB_BCM_PATCHRAM },
 168
 169         /* Intel Bluetooth USB Bootloader (RAM module) */
 170         { USB_DEVICE(0x8087, 0x0a5a),
 171           .driver_info = BTUSB_INTEL_BOOT | BTUSB_BROKEN_ISOC },
 172
 173         { }     /* Terminating entry */
 174 };
 175
 176 MODULE_DEVICE_TABLE(usb, btusb_table);
 177
 178 static const struct usb_device_id quirks_table[] = {
 179         /* CSR BlueCore devices */
 180         { USB_DEVICE(0x0a12, 0x0001), .driver_info = BTUSB_CSR },
 181
 182         /* Broadcom BCM2033 without firmware */
 183         { USB_DEVICE(0x0a5c, 0x2033), .driver_info = BTUSB_IGNORE },
 184
 185         /* Broadcom BCM2045 devices */
 186         { USB_DEVICE(0x0a5c, 0x2045), .driver_info = BTUSB_BCM2045 },
 187
 188         /* Atheros 3011 with sflash firmware */
 189         { USB_DEVICE(0x0489, 0xe027), .driver_info = BTUSB_IGNORE },
 190         { USB_DEVICE(0x0489, 0xe03d), .driver_info = BTUSB_IGNORE },
 191         { USB_DEVICE(0x04f2, 0xaff1), .driver_info = BTUSB_IGNORE },
 192         { USB_DEVICE(0x0930, 0x0215), .driver_info = BTUSB_IGNORE },
 193         { USB_DEVICE(0x0cf3, 0x3002), .driver_info = BTUSB_IGNORE },
 194         { USB_DEVICE(0x0cf3, 0xe019), .driver_info = BTUSB_IGNORE },
 195         { USB_DEVICE(0x13d3, 0x3304), .driver_info = BTUSB_IGNORE },
 196
 197         /* Atheros AR9285 Malbec with sflash firmware */
 198         { USB_DEVICE(0x03f0, 0x311d), .driver_info = BTUSB_IGNORE },
 199
 200         /* Atheros 3012 with sflash firmware */
 201         { USB_DEVICE(0x0489, 0xe04d), .driver_info = BTUSB_ATH3012 },
 202         { USB_DEVICE(0x0489, 0xe04e), .driver_info = BTUSB_ATH3012 },
 203         { USB_DEVICE(0x0489, 0xe056), .driver_info = BTUSB_ATH3012 },
 204         { USB_DEVICE(0x0489, 0xe057), .driver_info = BTUSB_ATH3012 },
 205         { USB_DEVICE(0x0489, 0xe05f), .driver_info = BTUSB_ATH3012 },
 206         { USB_DEVICE(0x0489, 0xe076), .driver_info = BTUSB_ATH3012 },
 207         { USB_DEVICE(0x0489, 0xe078), .driver_info = BTUSB_ATH3012 },
 208         { USB_DEVICE(0x0489, 0xe095), .driver_info = BTUSB_ATH3012 },
 209         { USB_DEVICE(0x04c5, 0x1330), .driver_info = BTUSB_ATH3012 },
 210         { USB_DEVICE(0x04ca, 0x3004), .driver_info = BTUSB_ATH3012 },
 211         { USB_DEVICE(0x04ca, 0x3005), .driver_info = BTUSB_ATH3012 },
 212         { USB_DEVICE(0x04ca, 0x3006), .driver_info = BTUSB_ATH3012 },
 213         { USB_DEVICE(0x04ca, 0x3007), .driver_info = BTUSB_ATH3012 },
 214         { USB_DEVICE(0x04ca, 0x3008), .driver_info = BTUSB_ATH3012 },
 215         { USB_DEVICE(0x04ca, 0x300b), .driver_info = BTUSB_ATH3012 },
 216         { USB_DEVICE(0x04ca, 0x300d), .driver_info = BTUSB_ATH3012 },
 217         { USB_DEVICE(0x04ca, 0x300f), .driver_info = BTUSB_ATH3012 },
 218         { USB_DEVICE(0x04ca, 0x3010), .driver_info = BTUSB_ATH3012 },
 219         { USB_DEVICE(0x04ca, 0x3014), .driver_info = BTUSB_ATH3012 },
 220         { USB_DEVICE(0x04ca, 0x3018), .driver_info = BTUSB_ATH3012 },
 221         { USB_DEVICE(0x0930, 0x0219), .driver_info = BTUSB_ATH3012 },
 222         { USB_DEVICE(0x0930, 0x021c), .driver_info = BTUSB_ATH3012 },
 223         { USB_DEVICE(0x0930, 0x0220), .driver_info = BTUSB_ATH3012 },
 224         { USB_DEVICE(0x0930, 0x0227), .driver_info = BTUSB_ATH3012 },
 225         { USB_DEVICE(0x0b05, 0x17d0), .driver_info = BTUSB_ATH3012 },
 226         { USB_DEVICE(0x0cf3, 0x0036), .driver_info = BTUSB_ATH3012 },
 227         { USB_DEVICE(0x0cf3, 0x3004), .driver_info = BTUSB_ATH3012 },
 228         { USB_DEVICE(0x0cf3, 0x3008), .driver_info = BTUSB_ATH3012 },
 229         { USB_DEVICE(0x0cf3, 0x311d), .driver_info = BTUSB_ATH3012 },
 230         { USB_DEVICE(0x0cf3, 0x311e), .driver_info = BTUSB_ATH3012 },
 231         { USB_DEVICE(0x0cf3, 0x311f), .driver_info = BTUSB_ATH3012 },
 232         { USB_DEVICE(0x0cf3, 0x3121), .driver_info = BTUSB_ATH3012 },
 233         { USB_DEVICE(0x0cf3, 0x817a), .driver_info = BTUSB_ATH3012 },
 234         { USB_DEVICE(0x0cf3, 0x817b), .driver_info = BTUSB_ATH3012 },
 235         { USB_DEVICE(0x0cf3, 0xe003), .driver_info = BTUSB_ATH3012 },
 236         { USB_DEVICE(0x0cf3, 0xe004), .driver_info = BTUSB_ATH3012 },
 237         { USB_DEVICE(0x0cf3, 0xe005), .driver_info = BTUSB_ATH3012 },
 238         { USB_DEVICE(0x0cf3, 0xe006), .driver_info = BTUSB_ATH3012 },
 239         { USB_DEVICE(0x13d3, 0x3362), .driver_info = BTUSB_ATH3012 },
 240         { USB_DEVICE(0x13d3, 0x3375), .driver_info = BTUSB_ATH3012 },
 241         { USB_DEVICE(0x13d3, 0x3393), .driver_info = BTUSB_ATH3012 },
 242         { USB_DEVICE(0x13d3, 0x3395), .driver_info = BTUSB_ATH3012 },
 243         { USB_DEVICE(0x13d3, 0x3402), .driver_info = BTUSB_ATH3012 },
 244         { USB_DEVICE(0x13d3, 0x3408), .driver_info = BTUSB_ATH3012 },
 245         { USB_DEVICE(0x13d3, 0x3423), .driver_info = BTUSB_ATH3012 },
 246         { USB_DEVICE(0x13d3, 0x3432), .driver_info = BTUSB_ATH3012 },
 247         { USB_DEVICE(0x13d3, 0x3472), .driver_info = BTUSB_ATH3012 },
 248         { USB_DEVICE(0x13d3, 0x3474), .driver_info = BTUSB_ATH3012 },
 249         { USB_DEVICE(0x13d3, 0x3487), .driver_info = BTUSB_ATH3012 },
 250         { USB_DEVICE(0x13d3, 0x3490), .driver_info = BTUSB_ATH3012 },
 251
 252         /* Atheros AR5BBU12 with sflash firmware */
 253         { USB_DEVICE(0x0489, 0xe02c), .driver_info = BTUSB_IGNORE },
 254
 255         /* Atheros AR5BBU12 with sflash firmware */
 256         { USB_DEVICE(0x0489, 0xe036), .driver_info = BTUSB_ATH3012 },
 257         { USB_DEVICE(0x0489, 0xe03c), .driver_info = BTUSB_ATH3012 },
 258
 259         /* QCA ROME chipset */
 260         { USB_DEVICE(0x0cf3, 0x535b), .driver_info = BTUSB_QCA_ROME |
 261                                                      BTUSB_WIDEBAND_SPEECH },
 262         { USB_DEVICE(0x0cf3, 0xe007), .driver_info = BTUSB_QCA_ROME |
 263                                                      BTUSB_WIDEBAND_SPEECH },
 264         { USB_DEVICE(0x0cf3, 0xe009), .driver_info = BTUSB_QCA_ROME |
 265                                                      BTUSB_WIDEBAND_SPEECH },
 266         { USB_DEVICE(0x0cf3, 0xe010), .driver_info = BTUSB_QCA_ROME |
 267                                                      BTUSB_WIDEBAND_SPEECH },
 268         { USB_DEVICE(0x0cf3, 0xe300), .driver_info = BTUSB_QCA_ROME |
 269                                                      BTUSB_WIDEBAND_SPEECH },
 270         { USB_DEVICE(0x0cf3, 0xe301), .driver_info = BTUSB_QCA_ROME |
 271                                                      BTUSB_WIDEBAND_SPEECH },
 272         { USB_DEVICE(0x0cf3, 0xe360), .driver_info = BTUSB_QCA_ROME |
 273                                                      BTUSB_WIDEBAND_SPEECH },
 274         { USB_DEVICE(0x0cf3, 0xe500), .driver_info = BTUSB_QCA_ROME |
 275                                                      BTUSB_WIDEBAND_SPEECH },
 276         { USB_DEVICE(0x0489, 0xe092), .driver_info = BTUSB_QCA_ROME |
 277                                                      BTUSB_WIDEBAND_SPEECH },
 278         { USB_DEVICE(0x0489, 0xe09f), .driver_info = BTUSB_QCA_ROME |
 279                                                      BTUSB_WIDEBAND_SPEECH },
 280         { USB_DEVICE(0x0489, 0xe0a2), .driver_info = BTUSB_QCA_ROME |
 281                                                      BTUSB_WIDEBAND_SPEECH },
 282         { USB_DEVICE(0x04ca, 0x3011), .driver_info = BTUSB_QCA_ROME |
 283                                                      BTUSB_WIDEBAND_SPEECH },
 284         { USB_DEVICE(0x04ca, 0x3015), .driver_info = BTUSB_QCA_ROME |
 285                                                      BTUSB_WIDEBAND_SPEECH },
 286         { USB_DEVICE(0x04ca, 0x3016), .driver_info = BTUSB_QCA_ROME |
 287                                                      BTUSB_WIDEBAND_SPEECH },
 288         { USB_DEVICE(0x04ca, 0x301a), .driver_info = BTUSB_QCA_ROME |
 289                                                      BTUSB_WIDEBAND_SPEECH },
 290         { USB_DEVICE(0x04ca, 0x3021), .driver_info = BTUSB_QCA_ROME |
 291                                                      BTUSB_WIDEBAND_SPEECH },
 292         { USB_DEVICE(0x13d3, 0x3491), .driver_info = BTUSB_QCA_ROME |
 293                                                      BTUSB_WIDEBAND_SPEECH },
 294         { USB_DEVICE(0x13d3, 0x3496), .driver_info = BTUSB_QCA_ROME |
 295                                                      BTUSB_WIDEBAND_SPEECH },
 296         { USB_DEVICE(0x13d3, 0x3501), .driver_info = BTUSB_QCA_ROME |
 297                                                      BTUSB_WIDEBAND_SPEECH },
 298
 299         /* QCA WCN6855 chipset */
 300         { USB_DEVICE(0x0cf3, 0xe600), .driver_info = BTUSB_QCA_WCN6855 |
 301                                                      BTUSB_WIDEBAND_SPEECH |
 302                                                      BTUSB_VALID_LE_STATES },
 303         { USB_DEVICE(0x0489, 0xe0cc), .driver_info = BTUSB_QCA_WCN6855 |
 304                                                      BTUSB_WIDEBAND_SPEECH |
 305                                                      BTUSB_VALID_LE_STATES },
 306         { USB_DEVICE(0x0489, 0xe0d6), .driver_info = BTUSB_QCA_WCN6855 |
 307                                                      BTUSB_WIDEBAND_SPEECH |
 308                                                      BTUSB_VALID_LE_STATES },
 309         { USB_DEVICE(0x0489, 0xe0e3), .driver_info = BTUSB_QCA_WCN6855 |
 310                                                      BTUSB_WIDEBAND_SPEECH |
 311                                                      BTUSB_VALID_LE_STATES },
 312         { USB_DEVICE(0x10ab, 0x9309), .driver_info = BTUSB_QCA_WCN6855 |
 313                                                      BTUSB_WIDEBAND_SPEECH |
 314                                                      BTUSB_VALID_LE_STATES },
 315         { USB_DEVICE(0x10ab, 0x9409), .driver_info = BTUSB_QCA_WCN6855 |
 316                                                      BTUSB_WIDEBAND_SPEECH |
 317                                                      BTUSB_VALID_LE_STATES },
 318         { USB_DEVICE(0x0489, 0xe0d0), .driver_info = BTUSB_QCA_WCN6855 |
 319                                                      BTUSB_WIDEBAND_SPEECH |
 320                                                      BTUSB_VALID_LE_STATES },
 321         { USB_DEVICE(0x10ab, 0x9108), .driver_info = BTUSB_QCA_WCN6855 |
 322                                                      BTUSB_WIDEBAND_SPEECH |
 323                                                      BTUSB_VALID_LE_STATES },
 324         { USB_DEVICE(0x10ab, 0x9109), .driver_info = BTUSB_QCA_WCN6855 |
 325                                                      BTUSB_WIDEBAND_SPEECH |
 326                                                      BTUSB_VALID_LE_STATES },
 327         { USB_DEVICE(0x10ab, 0x9208), .driver_info = BTUSB_QCA_WCN6855 |
 328                                                      BTUSB_WIDEBAND_SPEECH |
 329                                                      BTUSB_VALID_LE_STATES },
 330         { USB_DEVICE(0x10ab, 0x9209), .driver_info = BTUSB_QCA_WCN6855 |
 331                                                      BTUSB_WIDEBAND_SPEECH |
 332                                                      BTUSB_VALID_LE_STATES },
 333         { USB_DEVICE(0x10ab, 0x9308), .driver_info = BTUSB_QCA_WCN6855 |
 334                                                      BTUSB_WIDEBAND_SPEECH |
 335                                                      BTUSB_VALID_LE_STATES },
 336         { USB_DEVICE(0x10ab, 0x9408), .driver_info = BTUSB_QCA_WCN6855 |
 337                                                      BTUSB_WIDEBAND_SPEECH |
 338                                                      BTUSB_VALID_LE_STATES },
 339         { USB_DEVICE(0x10ab, 0x9508), .driver_info = BTUSB_QCA_WCN6855 |
 340                                                      BTUSB_WIDEBAND_SPEECH |
 341                                                      BTUSB_VALID_LE_STATES },
 342         { USB_DEVICE(0x10ab, 0x9509), .driver_info = BTUSB_QCA_WCN6855 |
 343                                                      BTUSB_WIDEBAND_SPEECH |
 344                                                      BTUSB_VALID_LE_STATES },
 345         { USB_DEVICE(0x10ab, 0x9608), .driver_info = BTUSB_QCA_WCN6855 |
 346                                                      BTUSB_WIDEBAND_SPEECH |
 347                                                      BTUSB_VALID_LE_STATES },
 348         { USB_DEVICE(0x10ab, 0x9609), .driver_info = BTUSB_QCA_WCN6855 |
 349                                                      BTUSB_WIDEBAND_SPEECH |
 350                                                      BTUSB_VALID_LE_STATES },
 351         { USB_DEVICE(0x10ab, 0x9f09), .driver_info = BTUSB_QCA_WCN6855 |
 352                                                      BTUSB_WIDEBAND_SPEECH |
 353                                                      BTUSB_VALID_LE_STATES },
 354         { USB_DEVICE(0x04ca, 0x3022), .driver_info = BTUSB_QCA_WCN6855 |
 355                                                      BTUSB_WIDEBAND_SPEECH |
 356                                                      BTUSB_VALID_LE_STATES },
 357         { USB_DEVICE(0x0489, 0xe0c7), .driver_info = BTUSB_QCA_WCN6855 |
 358                                                      BTUSB_WIDEBAND_SPEECH |
 359                                                      BTUSB_VALID_LE_STATES },
 360         { USB_DEVICE(0x0489, 0xe0c9), .driver_info = BTUSB_QCA_WCN6855 |
 361                                                      BTUSB_WIDEBAND_SPEECH |
 362                                                      BTUSB_VALID_LE_STATES },
 363         { USB_DEVICE(0x0489, 0xe0ca), .driver_info = BTUSB_QCA_WCN6855 |
 364                                                      BTUSB_WIDEBAND_SPEECH |
 365                                                      BTUSB_VALID_LE_STATES },
 366         { USB_DEVICE(0x0489, 0xe0cb), .driver_info = BTUSB_QCA_WCN6855 |
 367                                                      BTUSB_WIDEBAND_SPEECH |
 368                                                      BTUSB_VALID_LE_STATES },
 369         { USB_DEVICE(0x0489, 0xe0ce), .driver_info = BTUSB_QCA_WCN6855 |
 370                                                      BTUSB_WIDEBAND_SPEECH |
 371                                                      BTUSB_VALID_LE_STATES },
 372         { USB_DEVICE(0x0489, 0xe0de), .driver_info = BTUSB_QCA_WCN6855 |
 373                                                      BTUSB_WIDEBAND_SPEECH |
 374                                                      BTUSB_VALID_LE_STATES },
 375         { USB_DEVICE(0x0489, 0xe0df), .driver_info = BTUSB_QCA_WCN6855 |
 376                                                      BTUSB_WIDEBAND_SPEECH |
 377                                                      BTUSB_VALID_LE_STATES },
 378         { USB_DEVICE(0x0489, 0xe0e1), .driver_info = BTUSB_QCA_WCN6855 |
 379                                                      BTUSB_WIDEBAND_SPEECH |
 380                                                      BTUSB_VALID_LE_STATES },
 381         { USB_DEVICE(0x0489, 0xe0ea), .driver_info = BTUSB_QCA_WCN6855 |
 382                                                      BTUSB_WIDEBAND_SPEECH |
 383                                                      BTUSB_VALID_LE_STATES },
 384         { USB_DEVICE(0x0489, 0xe0ec), .driver_info = BTUSB_QCA_WCN6855 |
 385                                                      BTUSB_WIDEBAND_SPEECH |
 386                                                      BTUSB_VALID_LE_STATES },
 387         { USB_DEVICE(0x04ca, 0x3023), .driver_info = BTUSB_QCA_WCN6855 |
 388                                                      BTUSB_WIDEBAND_SPEECH |
 389                                                      BTUSB_VALID_LE_STATES },
 390         { USB_DEVICE(0x04ca, 0x3024), .driver_info = BTUSB_QCA_WCN6855 |
 391                                                      BTUSB_WIDEBAND_SPEECH |
 392                                                      BTUSB_VALID_LE_STATES },
 393         { USB_DEVICE(0x04ca, 0x3a22), .driver_info = BTUSB_QCA_WCN6855 |
 394                                                      BTUSB_WIDEBAND_SPEECH |
 395                                                      BTUSB_VALID_LE_STATES },
 396         { USB_DEVICE(0x04ca, 0x3a24), .driver_info = BTUSB_QCA_WCN6855 |
 397                                                      BTUSB_WIDEBAND_SPEECH |
 398                                                      BTUSB_VALID_LE_STATES },
 399         { USB_DEVICE(0x04ca, 0x3a26), .driver_info = BTUSB_QCA_WCN6855 |
 400                                                      BTUSB_WIDEBAND_SPEECH |
 401                                                      BTUSB_VALID_LE_STATES },
 402         { USB_DEVICE(0x04ca, 0x3a27), .driver_info = BTUSB_QCA_WCN6855 |
 403                                                      BTUSB_WIDEBAND_SPEECH |
 404                                                      BTUSB_VALID_LE_STATES },
 405
 406         /* QCA WCN785x chipset */
 407         { USB_DEVICE(0x0cf3, 0xe700), .driver_info = BTUSB_QCA_WCN6855 |
 408                                                      BTUSB_WIDEBAND_SPEECH |
 409                                                      BTUSB_VALID_LE_STATES },
 410
 411         /* Broadcom BCM2035 */
 412         { USB_DEVICE(0x0a5c, 0x2009), .driver_info = BTUSB_BCM92035 },
 413         { USB_DEVICE(0x0a5c, 0x200a), .driver_info = BTUSB_WRONG_SCO_MTU },
 414         { USB_DEVICE(0x0a5c, 0x2035), .driver_info = BTUSB_WRONG_SCO_MTU },
 415
 416         /* Broadcom BCM2045 */
 417         { USB_DEVICE(0x0a5c, 0x2039), .driver_info = BTUSB_WRONG_SCO_MTU },
 418         { USB_DEVICE(0x0a5c, 0x2101), .driver_info = BTUSB_WRONG_SCO_MTU },
 419
 420         /* IBM/Lenovo ThinkPad with Broadcom chip */
 421         { USB_DEVICE(0x0a5c, 0x201e), .driver_info = BTUSB_WRONG_SCO_MTU },
 422         { USB_DEVICE(0x0a5c, 0x2110), .driver_info = BTUSB_WRONG_SCO_MTU },
 423
 424         /* HP laptop with Broadcom chip */
 425         { USB_DEVICE(0x03f0, 0x171d), .driver_info = BTUSB_WRONG_SCO_MTU },
 426
 427         /* Dell laptop with Broadcom chip */
 428         { USB_DEVICE(0x413c, 0x8126), .driver_info = BTUSB_WRONG_SCO_MTU },
 429
 430         /* Dell Wireless 370 and 410 devices */
 431         { USB_DEVICE(0x413c, 0x8152), .driver_info = BTUSB_WRONG_SCO_MTU },
 432         { USB_DEVICE(0x413c, 0x8156), .driver_info = BTUSB_WRONG_SCO_MTU },
 433
 434         /* Belkin F8T012 and F8T013 devices */
 435         { USB_DEVICE(0x050d, 0x0012), .driver_info = BTUSB_WRONG_SCO_MTU },
 436         { USB_DEVICE(0x050d, 0x0013), .driver_info = BTUSB_WRONG_SCO_MTU },
 437
 438         /* Asus WL-BTD202 device */
 439         { USB_DEVICE(0x0b05, 0x1715), .driver_info = BTUSB_WRONG_SCO_MTU },
 440
 441         /* Kensington Bluetooth USB adapter */
 442         { USB_DEVICE(0x047d, 0x105e), .driver_info = BTUSB_WRONG_SCO_MTU },
 443
 444         /* RTX Telecom based adapters with buggy SCO support */
 445         { USB_DEVICE(0x0400, 0x0807), .driver_info = BTUSB_BROKEN_ISOC },
 446         { USB_DEVICE(0x0400, 0x080a), .driver_info = BTUSB_BROKEN_ISOC },
 447
 448         /* CONWISE Technology based adapters with buggy SCO support */
 449         { USB_DEVICE(0x0e5e, 0x6622),
 450           .driver_info = BTUSB_BROKEN_ISOC | BTUSB_CW6622},
 451
 452         /* Roper Class 1 Bluetooth Dongle (Silicon Wave based) */
 453         { USB_DEVICE(0x1310, 0x0001), .driver_info = BTUSB_SWAVE },
 454
 455         /* Digianswer devices */
 456         { USB_DEVICE(0x08fd, 0x0001), .driver_info = BTUSB_DIGIANSWER },
 457         { USB_DEVICE(0x08fd, 0x0002), .driver_info = BTUSB_IGNORE },
 458
 459         /* CSR BlueCore Bluetooth Sniffer */
 460         { USB_DEVICE(0x0a12, 0x0002),
 461           .driver_info = BTUSB_SNIFFER | BTUSB_BROKEN_ISOC },
 462
 463         /* Frontline ComProbe Bluetooth Sniffer */
 464         { USB_DEVICE(0x16d3, 0x0002),
 465           .driver_info = BTUSB_SNIFFER | BTUSB_BROKEN_ISOC },
 466
 467         /* Marvell Bluetooth devices */
 468         { USB_DEVICE(0x1286, 0x2044), .driver_info = BTUSB_MARVELL },
 469         { USB_DEVICE(0x1286, 0x2046), .driver_info = BTUSB_MARVELL },
 470         { USB_DEVICE(0x1286, 0x204e), .driver_info = BTUSB_MARVELL },
 471
 472         /* Intel Bluetooth devices */
 473         { USB_DEVICE(0x8087, 0x0025), .driver_info = BTUSB_INTEL_COMBINED },
 474         { USB_DEVICE(0x8087, 0x0026), .driver_info = BTUSB_INTEL_COMBINED },
 475         { USB_DEVICE(0x8087, 0x0029), .driver_info = BTUSB_INTEL_COMBINED },
 476         { USB_DEVICE(0x8087, 0x0032), .driver_info = BTUSB_INTEL_COMBINED },
 477         { USB_DEVICE(0x8087, 0x0033), .driver_info = BTUSB_INTEL_COMBINED },
 478         { USB_DEVICE(0x8087, 0x0035), .driver_info = BTUSB_INTEL_COMBINED },
 479         { USB_DEVICE(0x8087, 0x0036), .driver_info = BTUSB_INTEL_COMBINED },
 480         { USB_DEVICE(0x8087, 0x0038), .driver_info = BTUSB_INTEL_COMBINED },
 481         { USB_DEVICE(0x8087, 0x07da), .driver_info = BTUSB_CSR },
 482         { USB_DEVICE(0x8087, 0x07dc), .driver_info = BTUSB_INTEL_COMBINED |
 483                                                      BTUSB_INTEL_NO_WBS_SUPPORT |
 484                                                      BTUSB_INTEL_BROKEN_INITIAL_NCMD |
 485                                                      BTUSB_INTEL_BROKEN_SHUTDOWN_LED },
 486         { USB_DEVICE(0x8087, 0x0a2a), .driver_info = BTUSB_INTEL_COMBINED |
 487                                                      BTUSB_INTEL_NO_WBS_SUPPORT |
 488                                                      BTUSB_INTEL_BROKEN_SHUTDOWN_LED },
 489         { USB_DEVICE(0x8087, 0x0a2b), .driver_info = BTUSB_INTEL_COMBINED },
 490         { USB_DEVICE(0x8087, 0x0aa7), .driver_info = BTUSB_INTEL_COMBINED |
 491                                                      BTUSB_INTEL_BROKEN_SHUTDOWN_LED },
 492         { USB_DEVICE(0x8087, 0x0aaa), .driver_info = BTUSB_INTEL_COMBINED },
 493
 494         /* Other Intel Bluetooth devices */
 495         { USB_VENDOR_AND_INTERFACE_INFO(0x8087, 0xe0, 0x01, 0x01),
 496           .driver_info = BTUSB_IGNORE },
 497
 498         /* Realtek 8821CE Bluetooth devices */
 499         { USB_DEVICE(0x13d3, 0x3529), .driver_info = BTUSB_REALTEK |
 500                                                      BTUSB_WIDEBAND_SPEECH },
 501
 502         /* Realtek 8822CE Bluetooth devices */
 503         { USB_DEVICE(0x0bda, 0xb00c), .driver_info = BTUSB_REALTEK |
 504                                                      BTUSB_WIDEBAND_SPEECH },
 505         { USB_DEVICE(0x0bda, 0xc822), .driver_info = BTUSB_REALTEK |
 506                                                      BTUSB_WIDEBAND_SPEECH },
 507
 508         /* Realtek 8822CU Bluetooth devices */
 509         { USB_DEVICE(0x13d3, 0x3549), .driver_info = BTUSB_REALTEK |
 510                                                      BTUSB_WIDEBAND_SPEECH },
 511
 512         /* Realtek 8852AE Bluetooth devices */
 513         { USB_DEVICE(0x0bda, 0x2852), .driver_info = BTUSB_REALTEK |
 514                                                      BTUSB_WIDEBAND_SPEECH },
 515         { USB_DEVICE(0x0bda, 0xc852), .driver_info = BTUSB_REALTEK |
 516                                                      BTUSB_WIDEBAND_SPEECH },
 517         { USB_DEVICE(0x0bda, 0x385a), .driver_info = BTUSB_REALTEK |
 518                                                      BTUSB_WIDEBAND_SPEECH },
 519         { USB_DEVICE(0x0bda, 0x4852), .driver_info = BTUSB_REALTEK |
 520                                                      BTUSB_WIDEBAND_SPEECH },
 521         { USB_DEVICE(0x04c5, 0x165c), .driver_info = BTUSB_REALTEK |
 522                                                      BTUSB_WIDEBAND_SPEECH },
 523         { USB_DEVICE(0x04ca, 0x4006), .driver_info = BTUSB_REALTEK |
 524                                                      BTUSB_WIDEBAND_SPEECH },
 525         { USB_DEVICE(0x0cb8, 0xc549), .driver_info = BTUSB_REALTEK |
 526                                                      BTUSB_WIDEBAND_SPEECH },
 527
 528         /* Realtek 8852CE Bluetooth devices */
 529         { USB_DEVICE(0x04ca, 0x4007), .driver_info = BTUSB_REALTEK |
 530                                                      BTUSB_WIDEBAND_SPEECH },
 531         { USB_DEVICE(0x04c5, 0x1675), .driver_info = BTUSB_REALTEK |
 532                                                      BTUSB_WIDEBAND_SPEECH },
 533         { USB_DEVICE(0x0cb8, 0xc558), .driver_info = BTUSB_REALTEK |
 534                                                      BTUSB_WIDEBAND_SPEECH },
 535         { USB_DEVICE(0x13d3, 0x3587), .driver_info = BTUSB_REALTEK |
 536                                                      BTUSB_WIDEBAND_SPEECH },
 537         { USB_DEVICE(0x13d3, 0x3586), .driver_info = BTUSB_REALTEK |
 538                                                      BTUSB_WIDEBAND_SPEECH },
 539         { USB_DEVICE(0x13d3, 0x3592), .driver_info = BTUSB_REALTEK |
 540                                                      BTUSB_WIDEBAND_SPEECH },
 541
 542         /* Realtek 8852BE Bluetooth devices */
 543         { USB_DEVICE(0x0cb8, 0xc559), .driver_info = BTUSB_REALTEK |
 544                                                      BTUSB_WIDEBAND_SPEECH },
 545         { USB_DEVICE(0x0bda, 0x887b), .driver_info = BTUSB_REALTEK |
 546                                                      BTUSB_WIDEBAND_SPEECH },
 547         { USB_DEVICE(0x0bda, 0xb85b), .driver_info = BTUSB_REALTEK |
 548                                                      BTUSB_WIDEBAND_SPEECH },
 549         { USB_DEVICE(0x13d3, 0x3570), .driver_info = BTUSB_REALTEK |
 550                                                      BTUSB_WIDEBAND_SPEECH },
 551         { USB_DEVICE(0x13d3, 0x3571), .driver_info = BTUSB_REALTEK |
 552                                                      BTUSB_WIDEBAND_SPEECH },
 553
 554         /* Realtek Bluetooth devices */
 555         { USB_VENDOR_AND_INTERFACE_INFO(0x0bda, 0xe0, 0x01, 0x01),
 556           .driver_info = BTUSB_REALTEK },
 557
 558         /* MediaTek Bluetooth devices */
 559         { USB_VENDOR_AND_INTERFACE_INFO(0x0e8d, 0xe0, 0x01, 0x01),
 560           .driver_info = BTUSB_MEDIATEK |
 561                          BTUSB_WIDEBAND_SPEECH |
 562                          BTUSB_VALID_LE_STATES },
 563
 564         /* Additional MediaTek MT7615E Bluetooth devices */
 565         { USB_DEVICE(0x13d3, 0x3560), .driver_info = BTUSB_MEDIATEK},
 566
 567         /* Additional MediaTek MT7663 Bluetooth devices */
 568         { USB_DEVICE(0x043e, 0x310c), .driver_info = BTUSB_MEDIATEK |
 569                                                      BTUSB_WIDEBAND_SPEECH |
 570                                                      BTUSB_VALID_LE_STATES },
 571         { USB_DEVICE(0x04ca, 0x3801), .driver_info = BTUSB_MEDIATEK |
 572                                                      BTUSB_WIDEBAND_SPEECH |
 573                                                      BTUSB_VALID_LE_STATES },
 574
 575         /* Additional MediaTek MT7668 Bluetooth devices */
 576         { USB_DEVICE(0x043e, 0x3109), .driver_info = BTUSB_MEDIATEK |
 577                                                      BTUSB_WIDEBAND_SPEECH |
 578                                                      BTUSB_VALID_LE_STATES },
 579
 580         /* Additional MediaTek MT7921 Bluetooth devices */
 581         { USB_DEVICE(0x0489, 0xe0c8), .driver_info = BTUSB_MEDIATEK |
 582                                                      BTUSB_WIDEBAND_SPEECH |
 583                                                      BTUSB_VALID_LE_STATES },
 584         { USB_DEVICE(0x0489, 0xe0e0), .driver_info = BTUSB_MEDIATEK |
 585                                                      BTUSB_WIDEBAND_SPEECH |
 586                                                      BTUSB_VALID_LE_STATES },
 587         { USB_DEVICE(0x0489, 0xe0f2), .driver_info = BTUSB_MEDIATEK |
 588                                                      BTUSB_WIDEBAND_SPEECH |
 589                                                      BTUSB_VALID_LE_STATES },
 590         { USB_DEVICE(0x04ca, 0x3802), .driver_info = BTUSB_MEDIATEK |
 591                                                      BTUSB_WIDEBAND_SPEECH |
 592                                                      BTUSB_VALID_LE_STATES },
 593         { USB_DEVICE(0x13d3, 0x3563), .driver_info = BTUSB_MEDIATEK |
 594                                                      BTUSB_WIDEBAND_SPEECH |
 595                                                      BTUSB_VALID_LE_STATES },
 596         { USB_DEVICE(0x13d3, 0x3564), .driver_info = BTUSB_MEDIATEK |
 597                                                      BTUSB_WIDEBAND_SPEECH |
 598                                                      BTUSB_VALID_LE_STATES },
 599         { USB_DEVICE(0x13d3, 0x3567), .driver_info = BTUSB_MEDIATEK |
 600                                                      BTUSB_WIDEBAND_SPEECH |
 601                                                      BTUSB_VALID_LE_STATES },
 602         { USB_DEVICE(0x13d3, 0x3578), .driver_info = BTUSB_MEDIATEK |
 603                                                      BTUSB_WIDEBAND_SPEECH |
 604                                                      BTUSB_VALID_LE_STATES },
 605         { USB_DEVICE(0x13d3, 0x3583), .driver_info = BTUSB_MEDIATEK |
 606                                                      BTUSB_WIDEBAND_SPEECH |
 607                                                      BTUSB_VALID_LE_STATES },
 608         { USB_DEVICE(0x0489, 0xe0cd), .driver_info = BTUSB_MEDIATEK |
 609                                                      BTUSB_WIDEBAND_SPEECH |
 610                                                      BTUSB_VALID_LE_STATES },
 611         { USB_DEVICE(0x0e8d, 0x0608), .driver_info = BTUSB_MEDIATEK |
 612                                                      BTUSB_WIDEBAND_SPEECH |
 613                                                      BTUSB_VALID_LE_STATES },
 614
 615         /* MediaTek MT7922A Bluetooth devices */
 616         { USB_DEVICE(0x0489, 0xe0d8), .driver_info = BTUSB_MEDIATEK |
 617                                                      BTUSB_WIDEBAND_SPEECH |
 618                                                      BTUSB_VALID_LE_STATES },
 619         { USB_DEVICE(0x0489, 0xe0d9), .driver_info = BTUSB_MEDIATEK |
 620                                                      BTUSB_WIDEBAND_SPEECH |
 621                                                      BTUSB_VALID_LE_STATES },
 622         { USB_DEVICE(0x0489, 0xe0f5), .driver_info = BTUSB_MEDIATEK |
 623                                                      BTUSB_WIDEBAND_SPEECH |
 624                                                      BTUSB_VALID_LE_STATES },
 625         { USB_DEVICE(0x13d3, 0x3568), .driver_info = BTUSB_MEDIATEK |
 626                                                      BTUSB_WIDEBAND_SPEECH |
 627                                                      BTUSB_VALID_LE_STATES },
 628         { USB_DEVICE(0x0489, 0xe0e2), .driver_info = BTUSB_MEDIATEK |
 629                                                      BTUSB_WIDEBAND_SPEECH |
 630                                                      BTUSB_VALID_LE_STATES },
 631         { USB_DEVICE(0x0489, 0xe0e4), .driver_info = BTUSB_MEDIATEK |
 632                                                      BTUSB_WIDEBAND_SPEECH |
 633                                                      BTUSB_VALID_LE_STATES },
 634         { USB_DEVICE(0x0489, 0xe0f1), .driver_info = BTUSB_MEDIATEK |
 635                                                      BTUSB_WIDEBAND_SPEECH |
 636                                                      BTUSB_VALID_LE_STATES },
 637         { USB_DEVICE(0x0489, 0xe0f2), .driver_info = BTUSB_MEDIATEK |
 638                                                      BTUSB_WIDEBAND_SPEECH |
 639                                                      BTUSB_VALID_LE_STATES },
 640         { USB_DEVICE(0x0489, 0xe0f5), .driver_info = BTUSB_MEDIATEK |
 641                                                      BTUSB_WIDEBAND_SPEECH |
 642                                                      BTUSB_VALID_LE_STATES },
 643         { USB_DEVICE(0x0489, 0xe0f6), .driver_info = BTUSB_MEDIATEK |
 644                                                      BTUSB_WIDEBAND_SPEECH |
 645                                                      BTUSB_VALID_LE_STATES },
 646         { USB_DEVICE(0x0489, 0xe102), .driver_info = BTUSB_MEDIATEK |
 647                                                      BTUSB_WIDEBAND_SPEECH |
 648                                                      BTUSB_VALID_LE_STATES },
 649         { USB_DEVICE(0x04ca, 0x3804), .driver_info = BTUSB_MEDIATEK |
 650                                                      BTUSB_WIDEBAND_SPEECH |
 651                                                      BTUSB_VALID_LE_STATES },
 652         { USB_DEVICE(0x35f5, 0x7922), .driver_info = BTUSB_MEDIATEK |
 653                                                      BTUSB_WIDEBAND_SPEECH |
 654                                                      BTUSB_VALID_LE_STATES },
 655
 656         /* Additional Realtek 8723AE Bluetooth devices */
 657         { USB_DEVICE(0x0930, 0x021d), .driver_info = BTUSB_REALTEK },
 658         { USB_DEVICE(0x13d3, 0x3394), .driver_info = BTUSB_REALTEK },
 659
 660         /* Additional Realtek 8723BE Bluetooth devices */
 661         { USB_DEVICE(0x0489, 0xe085), .driver_info = BTUSB_REALTEK },
 662         { USB_DEVICE(0x0489, 0xe08b), .driver_info = BTUSB_REALTEK },
 663         { USB_DEVICE(0x04f2, 0xb49f), .driver_info = BTUSB_REALTEK },
 664         { USB_DEVICE(0x13d3, 0x3410), .driver_info = BTUSB_REALTEK },
 665         { USB_DEVICE(0x13d3, 0x3416), .driver_info = BTUSB_REALTEK },
 666         { USB_DEVICE(0x13d3, 0x3459), .driver_info = BTUSB_REALTEK },
 667         { USB_DEVICE(0x13d3, 0x3494), .driver_info = BTUSB_REALTEK },
 668
 669         /* Additional Realtek 8723BU Bluetooth devices */
 670         { USB_DEVICE(0x7392, 0xa611), .driver_info = BTUSB_REALTEK },
 671
 672         /* Additional Realtek 8723DE Bluetooth devices */
 673         { USB_DEVICE(0x0bda, 0xb009), .driver_info = BTUSB_REALTEK },
 674         { USB_DEVICE(0x2ff8, 0xb011), .driver_info = BTUSB_REALTEK },
 675
 676         /* Additional Realtek 8761BUV Bluetooth devices */
 677         { USB_DEVICE(0x2357, 0x0604), .driver_info = BTUSB_REALTEK |
 678                                                      BTUSB_WIDEBAND_SPEECH },
 679         { USB_DEVICE(0x0b05, 0x190e), .driver_info = BTUSB_REALTEK |
 680                                                      BTUSB_WIDEBAND_SPEECH },
 681         { USB_DEVICE(0x2550, 0x8761), .driver_info = BTUSB_REALTEK |
 682                                                      BTUSB_WIDEBAND_SPEECH },
 683         { USB_DEVICE(0x0bda, 0x8771), .driver_info = BTUSB_REALTEK |
 684                                                      BTUSB_WIDEBAND_SPEECH },
 685         { USB_DEVICE(0x6655, 0x8771), .driver_info = BTUSB_REALTEK |
 686                                                      BTUSB_WIDEBAND_SPEECH },
 687         { USB_DEVICE(0x7392, 0xc611), .driver_info = BTUSB_REALTEK |
 688                                                      BTUSB_WIDEBAND_SPEECH },
 689         { USB_DEVICE(0x2b89, 0x8761), .driver_info = BTUSB_REALTEK |
 690                                                      BTUSB_WIDEBAND_SPEECH },
 691
 692         /* Additional Realtek 8821AE Bluetooth devices */
 693         { USB_DEVICE(0x0b05, 0x17dc), .driver_info = BTUSB_REALTEK },
 694         { USB_DEVICE(0x13d3, 0x3414), .driver_info = BTUSB_REALTEK },
 695         { USB_DEVICE(0x13d3, 0x3458), .driver_info = BTUSB_REALTEK },
 696         { USB_DEVICE(0x13d3, 0x3461), .driver_info = BTUSB_REALTEK },
 697         { USB_DEVICE(0x13d3, 0x3462), .driver_info = BTUSB_REALTEK },
 698
 699         /* Additional Realtek 8822BE Bluetooth devices */
 700         { USB_DEVICE(0x13d3, 0x3526), .driver_info = BTUSB_REALTEK },
 701         { USB_DEVICE(0x0b05, 0x185c), .driver_info = BTUSB_REALTEK },
 702
 703         /* Additional Realtek 8822CE Bluetooth devices */
 704         { USB_DEVICE(0x04ca, 0x4005), .driver_info = BTUSB_REALTEK |
 705                                                      BTUSB_WIDEBAND_SPEECH },
 706         { USB_DEVICE(0x04c5, 0x161f), .driver_info = BTUSB_REALTEK |
 707                                                      BTUSB_WIDEBAND_SPEECH },
 708         { USB_DEVICE(0x0b05, 0x18ef), .driver_info = BTUSB_REALTEK |
 709                                                      BTUSB_WIDEBAND_SPEECH },
 710         { USB_DEVICE(0x13d3, 0x3548), .driver_info = BTUSB_REALTEK |
 711                                                      BTUSB_WIDEBAND_SPEECH },
 712         { USB_DEVICE(0x13d3, 0x3549), .driver_info = BTUSB_REALTEK |
 713                                                      BTUSB_WIDEBAND_SPEECH },
 714         { USB_DEVICE(0x13d3, 0x3553), .driver_info = BTUSB_REALTEK |
 715                                                      BTUSB_WIDEBAND_SPEECH },
 716         { USB_DEVICE(0x13d3, 0x3555), .driver_info = BTUSB_REALTEK |
 717                                                      BTUSB_WIDEBAND_SPEECH },
 718         { USB_DEVICE(0x2ff8, 0x3051), .driver_info = BTUSB_REALTEK |
 719                                                      BTUSB_WIDEBAND_SPEECH },
 720         { USB_DEVICE(0x1358, 0xc123), .driver_info = BTUSB_REALTEK |
 721                                                      BTUSB_WIDEBAND_SPEECH },
 722         { USB_DEVICE(0x0bda, 0xc123), .driver_info = BTUSB_REALTEK |
 723                                                      BTUSB_WIDEBAND_SPEECH },
 724         { USB_DEVICE(0x0cb5, 0xc547), .driver_info = BTUSB_REALTEK |
 725                                                      BTUSB_WIDEBAND_SPEECH },
 726
 727         /* Actions Semiconductor ATS2851 based devices */
 728         { USB_DEVICE(0x10d7, 0xb012), .driver_info = BTUSB_ACTIONS_SEMI },
 729
 730         /* Silicon Wave based devices */
 731         { USB_DEVICE(0x0c10, 0x0000), .driver_info = BTUSB_SWAVE },
 732
 733         { }     /* Terminating entry */
 734 };
 735
 736 /* The Bluetooth USB module build into some devices needs to be reset on resume,
 737  * this is a problem with the platform (likely shutting off all power) not with
 738  * the module itself. So we use a DMI list to match known broken platforms.
 739  */
 740 static const struct dmi_system_id btusb_needs_reset_resume_table[] = {
 741         {
 742                 /* Dell OptiPlex 3060 (QCA ROME device 0cf3:e007) */
 743                 .matches = {
 744                         DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
 745                         DMI_MATCH(DMI_PRODUCT_NAME, "OptiPlex 3060"),
 746                 },
 747         },
 748         {
 749                 /* Dell XPS 9360 (QCA ROME device 0cf3:e300) */
 750                 .matches = {
 751                         DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
 752                         DMI_MATCH(DMI_PRODUCT_NAME, "XPS 13 9360"),
 753                 },
 754         },
 755         {
 756                 /* Dell Inspiron 5565 (QCA ROME device 0cf3:e009) */
 757                 .matches = {
 758                         DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
 759                         DMI_MATCH(DMI_PRODUCT_NAME, "Inspiron 5565"),
 760                 },
 761         },
 762         {}
 763 };
 764
 765 struct qca_dump_info {
 766         /* fields for dump collection */
 767         u16 id_vendor;
 768         u16 id_product;
 769         u32 fw_version;
 770         u32 controller_id;
 771         u32 ram_dump_size;
 772         u16 ram_dump_seqno;
 773 };
 774
 775 #define BTUSB_MAX_ISOC_FRAMES   10
 776
 777 #define BTUSB_INTR_RUNNING      0
 778 #define BTUSB_BULK_RUNNING      1
 779 #define BTUSB_ISOC_RUNNING      2
 780 #define BTUSB_SUSPENDING        3
 781 #define BTUSB_DID_ISO_RESUME    4
 782 #define BTUSB_BOOTLOADER        5
 783 #define BTUSB_DOWNLOADING       6
 784 #define BTUSB_FIRMWARE_LOADED   7
 785 #define BTUSB_FIRMWARE_FAILED   8
 786 #define BTUSB_BOOTING           9
 787 #define BTUSB_DIAG_RUNNING      10
 788 #define BTUSB_OOB_WAKE_ENABLED  11
 789 #define BTUSB_HW_RESET_ACTIVE   12
 790 #define BTUSB_TX_WAIT_VND_EVT   13
 791 #define BTUSB_WAKEUP_AUTOSUSPEND        14
 792 #define BTUSB_USE_ALT3_FOR_WBS  15
 793 #define BTUSB_ALT6_CONTINUOUS_TX        16
 794 #define BTUSB_HW_SSR_ACTIVE     17
 795
 796 struct btusb_data {
 797         struct hci_dev       *hdev;
 798         struct usb_device    *udev;
 799         struct usb_interface *intf;
 800         struct usb_interface *isoc;
 801         struct usb_interface *diag;
 802         unsigned isoc_ifnum;
 803
 804         unsigned long flags;
 805
 806         bool poll_sync;
 807         int intr_interval;
 808         struct work_struct  work;
 809         struct work_struct  waker;
 810         struct delayed_work rx_work;
 811
 812         struct sk_buff_head acl_q;
 813
 814         struct usb_anchor deferred;
 815         struct usb_anchor tx_anchor;
 816         int tx_in_flight;
 817         spinlock_t txlock;
 818
 819         struct usb_anchor intr_anchor;
 820         struct usb_anchor bulk_anchor;
 821         struct usb_anchor isoc_anchor;
 822         struct usb_anchor diag_anchor;
 823         struct usb_anchor ctrl_anchor;
 824         spinlock_t rxlock;
 825
 826         struct sk_buff *evt_skb;
 827         struct sk_buff *acl_skb;
 828         struct sk_buff *sco_skb;
 829
 830         struct usb_endpoint_descriptor *intr_ep;
 831         struct usb_endpoint_descriptor *bulk_tx_ep;
 832         struct usb_endpoint_descriptor *bulk_rx_ep;
 833         struct usb_endpoint_descriptor *isoc_tx_ep;
 834         struct usb_endpoint_descriptor *isoc_rx_ep;
 835         struct usb_endpoint_descriptor *diag_tx_ep;
 836         struct usb_endpoint_descriptor *diag_rx_ep;
 837
 838         struct gpio_desc *reset_gpio;
 839
 840         __u8 cmdreq_type;
 841         __u8 cmdreq;
 842
 843         unsigned int sco_num;
 844         unsigned int air_mode;
 845         bool usb_alt6_packet_flow;
 846         int isoc_altsetting;
 847         int suspend_count;
 848
 849         int (*recv_event)(struct hci_dev *hdev, struct sk_buff *skb);
 850         int (*recv_acl)(struct hci_dev *hdev, struct sk_buff *skb);
 851         int (*recv_bulk)(struct btusb_data *data, void *buffer, int count);
 852
 853         int (*setup_on_usb)(struct hci_dev *hdev);
 854
 855         int oob_wake_irq;   /* irq for out-of-band wake-on-bt */
 856         unsigned cmd_timeout_cnt;
 857
 858         struct qca_dump_info qca_dump;
 859 };
 860
 861 static void btusb_reset(struct hci_dev *hdev)
 862 {
 863         struct btusb_data *data;
 864         int err;
 865
 866         if (hdev->reset) {
 867                 hdev->reset(hdev);
 868                 return;
 869         }
 870
 871         data = hci_get_drvdata(hdev);
 872         /* This is not an unbalanced PM reference since the device will reset */
 873         err = usb_autopm_get_interface(data->intf);
 874         if (err) {
 875                 bt_dev_err(hdev, "Failed usb_autopm_get_interface: %d", err);
 876                 return;
 877         }
 878
 879         bt_dev_err(hdev, "Resetting usb device.");
 880         usb_queue_reset_device(data->intf);
 881 }
 882
 883 static void btusb_intel_cmd_timeout(struct hci_dev *hdev)
 884 {
 885         struct btusb_data *data = hci_get_drvdata(hdev);
 886         struct gpio_desc *reset_gpio = data->reset_gpio;
 887         struct btintel_data *intel_data = hci_get_priv(hdev);
 888
 889         if (++data->cmd_timeout_cnt < 5)
 890                 return;
 891
 892         if (intel_data->acpi_reset_method) {
 893                 if (test_and_set_bit(INTEL_ACPI_RESET_ACTIVE, intel_data->flags)) {
 894                         bt_dev_err(hdev, "acpi: last reset failed ? Not resetting again");
 895                         return;
 896                 }
 897
 898                 bt_dev_err(hdev, "Initiating acpi reset method");
 899                 /* If ACPI reset method fails, lets try with legacy GPIO
 900                  * toggling
 901                  */
 902                 if (!intel_data->acpi_reset_method(hdev)) {
 903                         return;
 904                 }
 905         }
 906
 907         if (!reset_gpio) {
 908                 btusb_reset(hdev);
 909                 return;
 910         }
 911
 912         /*
 913          * Toggle the hard reset line if the platform provides one. The reset
 914          * is going to yank the device off the USB and then replug. So doing
 915          * once is enough. The cleanup is handled correctly on the way out
 916          * (standard USB disconnect), and the new device is detected cleanly
 917          * and bound to the driver again like it should be.
 918          */
 919         if (test_and_set_bit(BTUSB_HW_RESET_ACTIVE, &data->flags)) {
 920                 bt_dev_err(hdev, "last reset failed? Not resetting again");
 921                 return;
 922         }
 923
 924         bt_dev_err(hdev, "Initiating HW reset via gpio");
 925         gpiod_set_value_cansleep(reset_gpio, 1);
 926         msleep(100);
 927         gpiod_set_value_cansleep(reset_gpio, 0);
 928 }
 929
 930 #define RTK_DEVCOREDUMP_CODE_MEMDUMP            0x01
 931 #define RTK_DEVCOREDUMP_CODE_HW_ERR             0x02
 932 #define RTK_DEVCOREDUMP_CODE_CMD_TIMEOUT        0x03
 933
 934 #define RTK_SUB_EVENT_CODE_COREDUMP             0x34
 935
 936 struct rtk_dev_coredump_hdr {
 937         u8 type;
 938         u8 code;
 939         u8 reserved[2];
 940 } __packed;
 941
 942 static inline void btusb_rtl_alloc_devcoredump(struct hci_dev *hdev,
 943                 struct rtk_dev_coredump_hdr *hdr, u8 *buf, u32 len)
 944 {
 945         struct sk_buff *skb;
 946
 947         skb = alloc_skb(len + sizeof(*hdr), GFP_ATOMIC);
 948         if (!skb)
 949                 return;
 950
 951         skb_put_data(skb, hdr, sizeof(*hdr));
 952         if (len)
 953                 skb_put_data(skb, buf, len);
 954
 955         if (!hci_devcd_init(hdev, skb->len)) {
 956                 hci_devcd_append(hdev, skb);
 957                 hci_devcd_complete(hdev);
 958         } else {
 959                 bt_dev_err(hdev, "RTL: Failed to generate devcoredump");
 960                 kfree_skb(skb);
 961         }
 962 }
 963
 964 static void btusb_rtl_cmd_timeout(struct hci_dev *hdev)
 965 {
 966         struct btusb_data *data = hci_get_drvdata(hdev);
 967         struct gpio_desc *reset_gpio = data->reset_gpio;
 968         struct rtk_dev_coredump_hdr hdr = {
 969                 .type = RTK_DEVCOREDUMP_CODE_CMD_TIMEOUT,
 970         };
 971
 972         btusb_rtl_alloc_devcoredump(hdev, &hdr, NULL, 0);
 973
 974         if (++data->cmd_timeout_cnt < 5)
 975                 return;
 976
 977         if (!reset_gpio) {
 978                 btusb_reset(hdev);
 979                 return;
 980         }
 981
 982         /* Toggle the hard reset line. The Realtek device is going to
 983          * yank itself off the USB and then replug. The cleanup is handled
 984          * correctly on the way out (standard USB disconnect), and the new
 985          * device is detected cleanly and bound to the driver again like
 986          * it should be.
 987          */
 988         if (test_and_set_bit(BTUSB_HW_RESET_ACTIVE, &data->flags)) {
 989                 bt_dev_err(hdev, "last reset failed? Not resetting again");
 990                 return;
 991         }
 992
 993         bt_dev_err(hdev, "Reset Realtek device via gpio");
 994         gpiod_set_value_cansleep(reset_gpio, 1);
 995         msleep(200);
 996         gpiod_set_value_cansleep(reset_gpio, 0);
 997 }
 998
 999 static void btusb_rtl_hw_error(struct hci_dev *hdev, u8 code)
1000 {
1001         struct rtk_dev_coredump_hdr hdr = {
1002                 .type = RTK_DEVCOREDUMP_CODE_HW_ERR,
1003                 .code = code,
1004         };
1005
1006         bt_dev_err(hdev, "RTL: hw err, trigger devcoredump (%d)", code);
1007
1008         btusb_rtl_alloc_devcoredump(hdev, &hdr, NULL, 0);
1009 }
1010
1011 static void btusb_qca_cmd_timeout(struct hci_dev *hdev)
1012 {
1013         struct btusb_data *data = hci_get_drvdata(hdev);
1014         struct gpio_desc *reset_gpio = data->reset_gpio;
1015
1016         if (test_bit(BTUSB_HW_SSR_ACTIVE, &data->flags)) {
1017                 bt_dev_info(hdev, "Ramdump in progress, defer cmd_timeout");
1018                 return;
1019         }
1020
1021         if (++data->cmd_timeout_cnt < 5)
1022                 return;
1023
1024         if (reset_gpio) {
1025                 bt_dev_err(hdev, "Reset qca device via bt_en gpio");
1026
1027                 /* Toggle the hard reset line. The qca bt device is going to
1028                  * yank itself off the USB and then replug. The cleanup is handled
1029                  * correctly on the way out (standard USB disconnect), and the new
1030                  * device is detected cleanly and bound to the driver again like
1031                  * it should be.
1032                  */
1033                 if (test_and_set_bit(BTUSB_HW_RESET_ACTIVE, &data->flags)) {
1034                         bt_dev_err(hdev, "last reset failed? Not resetting again");
1035                         return;
1036                 }
1037
1038                 gpiod_set_value_cansleep(reset_gpio, 0);
1039                 msleep(200);
1040                 gpiod_set_value_cansleep(reset_gpio, 1);
1041
1042                 return;
1043         }
1044
1045         btusb_reset(hdev);
1046 }
1047
1048 static inline void btusb_free_frags(struct btusb_data *data)
1049 {
1050         unsigned long flags;
1051
1052         spin_lock_irqsave(&data->rxlock, flags);
1053
1054         dev_kfree_skb_irq(data->evt_skb);
1055         data->evt_skb = NULL;
1056
1057         dev_kfree_skb_irq(data->acl_skb);
1058         data->acl_skb = NULL;
1059
1060         dev_kfree_skb_irq(data->sco_skb);
1061         data->sco_skb = NULL;
1062
1063         spin_unlock_irqrestore(&data->rxlock, flags);
1064 }
1065
1066 static int btusb_recv_event(struct btusb_data *data, struct sk_buff *skb)
1067 {
1068         if (data->intr_interval) {
1069                 /* Trigger dequeue immediatelly if an event is received */
1070                 schedule_delayed_work(&data->rx_work, 0);
1071         }
1072
1073         return data->recv_event(data->hdev, skb);
1074 }
1075
1076 static int btusb_recv_intr(struct btusb_data *data, void *buffer, int count)
1077 {
1078         struct sk_buff *skb;
1079         unsigned long flags;
1080         int err = 0;
1081
1082         spin_lock_irqsave(&data->rxlock, flags);
1083         skb = data->evt_skb;
1084
1085         while (count) {
1086                 int len;
1087
1088                 if (!skb) {
1089                         skb = bt_skb_alloc(HCI_MAX_EVENT_SIZE, GFP_ATOMIC);
1090                         if (!skb) {
1091                                 err = -ENOMEM;
1092                                 break;
1093                         }
1094
1095                         hci_skb_pkt_type(skb) = HCI_EVENT_PKT;
1096                         hci_skb_expect(skb) = HCI_EVENT_HDR_SIZE;
1097                 }
1098
1099                 len = min_t(uint, hci_skb_expect(skb), count);
1100                 skb_put_data(skb, buffer, len);
1101
1102                 count -= len;
1103                 buffer += len;
1104                 hci_skb_expect(skb) -= len;
1105
1106                 if (skb->len == HCI_EVENT_HDR_SIZE) {
1107                         /* Complete event header */
1108                         hci_skb_expect(skb) = hci_event_hdr(skb)->plen;
1109
1110                         if (skb_tailroom(skb) < hci_skb_expect(skb)) {
1111                                 kfree_skb(skb);
1112                                 skb = NULL;
1113
1114                                 err = -EILSEQ;
1115                                 break;
1116                         }
1117                 }
1118
1119                 if (!hci_skb_expect(skb)) {
1120                         /* Complete frame */
1121                         btusb_recv_event(data, skb);
1122                         skb = NULL;
1123                 }
1124         }
1125
1126         data->evt_skb = skb;
1127         spin_unlock_irqrestore(&data->rxlock, flags);
1128
1129         return err;
1130 }
1131
1132 static int btusb_recv_acl(struct btusb_data *data, struct sk_buff *skb)
1133 {
1134         /* Only queue ACL packet if intr_interval is set as it means
1135          * force_poll_sync has been enabled.
1136          */
1137         if (!data->intr_interval)
1138                 return data->recv_acl(data->hdev, skb);
1139
1140         skb_queue_tail(&data->acl_q, skb);
1141         schedule_delayed_work(&data->rx_work, data->intr_interval);
1142
1143         return 0;
1144 }
1145
1146 static int btusb_recv_bulk(struct btusb_data *data, void *buffer, int count)
1147 {
1148         struct sk_buff *skb;
1149         unsigned long flags;
1150         int err = 0;
1151
1152         spin_lock_irqsave(&data->rxlock, flags);
1153         skb = data->acl_skb;
1154
1155         while (count) {
1156                 int len;
1157
1158                 if (!skb) {
1159                         skb = bt_skb_alloc(HCI_MAX_FRAME_SIZE, GFP_ATOMIC);
1160                         if (!skb) {
1161                                 err = -ENOMEM;
1162                                 break;
1163                         }
1164
1165                         hci_skb_pkt_type(skb) = HCI_ACLDATA_PKT;
1166                         hci_skb_expect(skb) = HCI_ACL_HDR_SIZE;
1167                 }
1168
1169                 len = min_t(uint, hci_skb_expect(skb), count);
1170                 skb_put_data(skb, buffer, len);
1171
1172                 count -= len;
1173                 buffer += len;
1174                 hci_skb_expect(skb) -= len;
1175
1176                 if (skb->len == HCI_ACL_HDR_SIZE) {
1177                         __le16 dlen = hci_acl_hdr(skb)->dlen;
1178
1179                         /* Complete ACL header */
1180                         hci_skb_expect(skb) = __le16_to_cpu(dlen);
1181
1182                         if (skb_tailroom(skb) < hci_skb_expect(skb)) {
1183                                 kfree_skb(skb);
1184                                 skb = NULL;
1185
1186                                 err = -EILSEQ;
1187                                 break;
1188                         }
1189                 }
1190
1191                 if (!hci_skb_expect(skb)) {
1192                         /* Complete frame */
1193                         btusb_recv_acl(data, skb);
1194                         skb = NULL;
1195                 }
1196         }
1197
1198         data->acl_skb = skb;
1199         spin_unlock_irqrestore(&data->rxlock, flags);
1200
1201         return err;
1202 }
1203
1204 static bool btusb_validate_sco_handle(struct hci_dev *hdev,
1205                                       struct hci_sco_hdr *hdr)
1206 {
1207         __u16 handle;
1208
1209         if (hci_dev_test_flag(hdev, HCI_USER_CHANNEL))
1210                 // Can't validate, userspace controls everything.
1211                 return true;
1212
1213         /*
1214          * USB isochronous transfers are not designed to be reliable and may
1215          * lose fragments.  When this happens, the next first fragment
1216          * encountered might actually be a continuation fragment.
1217          * Validate the handle to detect it and drop it, or else the upper
1218          * layer will get garbage for a while.
1219          */
1220
1221         handle = hci_handle(__le16_to_cpu(hdr->handle));
1222
1223         switch (hci_conn_lookup_type(hdev, handle)) {
1224         case SCO_LINK:
1225         case ESCO_LINK:
1226                 return true;
1227         default:
1228                 return false;
1229         }
1230 }
1231
1232 static int btusb_recv_isoc(struct btusb_data *data, void *buffer, int count)
1233 {
1234         struct sk_buff *skb;
1235         unsigned long flags;
1236         int err = 0;
1237
1238         spin_lock_irqsave(&data->rxlock, flags);
1239         skb = data->sco_skb;
1240
1241         while (count) {
1242                 int len;
1243
1244                 if (!skb) {
1245                         skb = bt_skb_alloc(HCI_MAX_SCO_SIZE, GFP_ATOMIC);
1246                         if (!skb) {
1247                                 err = -ENOMEM;
1248                                 break;
1249                         }
1250
1251                         hci_skb_pkt_type(skb) = HCI_SCODATA_PKT;
1252                         hci_skb_expect(skb) = HCI_SCO_HDR_SIZE;
1253                 }
1254
1255                 len = min_t(uint, hci_skb_expect(skb), count);
1256                 skb_put_data(skb, buffer, len);
1257
1258                 count -= len;
1259                 buffer += len;
1260                 hci_skb_expect(skb) -= len;
1261
1262                 if (skb->len == HCI_SCO_HDR_SIZE) {
1263                         /* Complete SCO header */
1264                         struct hci_sco_hdr *hdr = hci_sco_hdr(skb);
1265
1266                         hci_skb_expect(skb) = hdr->dlen;
1267
1268                         if (skb_tailroom(skb) < hci_skb_expect(skb) ||
1269                             !btusb_validate_sco_handle(data->hdev, hdr)) {
1270                                 kfree_skb(skb);
1271                                 skb = NULL;
1272
1273                                 err = -EILSEQ;
1274                                 break;
1275                         }
1276                 }
1277
1278                 if (!hci_skb_expect(skb)) {
1279                         /* Complete frame */
1280                         hci_recv_frame(data->hdev, skb);
1281                         skb = NULL;
1282                 }
1283         }
1284
1285         data->sco_skb = skb;
1286         spin_unlock_irqrestore(&data->rxlock, flags);
1287
1288         return err;
1289 }
1290
1291 static void btusb_intr_complete(struct urb *urb)
1292 {
1293         struct hci_dev *hdev = urb->context;
1294         struct btusb_data *data = hci_get_drvdata(hdev);
1295         int err;
1296
1297         BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
1298                urb->actual_length);
1299
1300         if (!test_bit(HCI_RUNNING, &hdev->flags))
1301                 return;
1302
1303         if (urb->status == 0) {
1304                 hdev->stat.byte_rx += urb->actual_length;
1305
1306                 if (btusb_recv_intr(data, urb->transfer_buffer,
1307                                     urb->actual_length) < 0) {
1308                         bt_dev_err(hdev, "corrupted event packet");
1309                         hdev->stat.err_rx++;
1310                 }
1311         } else if (urb->status == -ENOENT) {
1312                 /* Avoid suspend failed when usb_kill_urb */
1313                 return;
1314         }
1315
1316         if (!test_bit(BTUSB_INTR_RUNNING, &data->flags))
1317                 return;
1318
1319         usb_mark_last_busy(data->udev);
1320         usb_anchor_urb(urb, &data->intr_anchor);
1321
1322         err = usb_submit_urb(urb, GFP_ATOMIC);
1323         if (err < 0) {
1324                 /* -EPERM: urb is being killed;
1325                  * -ENODEV: device got disconnected
1326                  */
1327                 if (err != -EPERM && err != -ENODEV)
1328                         bt_dev_err(hdev, "urb %p failed to resubmit (%d)",
1329                                    urb, -err);
1330                 if (err != -EPERM)
1331                         hci_cmd_sync_cancel(hdev, -err);
1332                 usb_unanchor_urb(urb);
1333         }
1334 }
1335
1336 static int btusb_submit_intr_urb(struct hci_dev *hdev, gfp_t mem_flags)
1337 {
1338         struct btusb_data *data = hci_get_drvdata(hdev);
1339         struct urb *urb;
1340         unsigned char *buf;
1341         unsigned int pipe;
1342         int err, size;
1343
1344         BT_DBG("%s", hdev->name);
1345
1346         if (!data->intr_ep)
1347                 return -ENODEV;
1348
1349         urb = usb_alloc_urb(0, mem_flags);
1350         if (!urb)
1351                 return -ENOMEM;
1352
1353         size = le16_to_cpu(data->intr_ep->wMaxPacketSize);
1354
1355         buf = kmalloc(size, mem_flags);
1356         if (!buf) {
1357                 usb_free_urb(urb);
1358                 return -ENOMEM;
1359         }
1360
1361         pipe = usb_rcvintpipe(data->udev, data->intr_ep->bEndpointAddress);
1362
1363         usb_fill_int_urb(urb, data->udev, pipe, buf, size,
1364                          btusb_intr_complete, hdev, data->intr_ep->bInterval);
1365
1366         urb->transfer_flags |= URB_FREE_BUFFER;
1367
1368         usb_anchor_urb(urb, &data->intr_anchor);
1369
1370         err = usb_submit_urb(urb, mem_flags);
1371         if (err < 0) {
1372                 if (err != -EPERM && err != -ENODEV)
1373                         bt_dev_err(hdev, "urb %p submission failed (%d)",
1374                                    urb, -err);
1375                 if (err != -EPERM)
1376                         hci_cmd_sync_cancel(hdev, -err);
1377                 usb_unanchor_urb(urb);
1378         }
1379
1380         /* Only initialize intr_interval if URB poll sync is enabled */
1381         if (!data->poll_sync)
1382                 goto done;
1383
1384         /* The units are frames (milliseconds) for full and low speed devices,
1385          * and microframes (1/8 millisecond) for highspeed and SuperSpeed
1386          * devices.
1387          *
1388          * This is done once on open/resume so it shouldn't change even if
1389          * force_poll_sync changes.
1390          */
1391         switch (urb->dev->speed) {
1392         case USB_SPEED_SUPER_PLUS:
1393         case USB_SPEED_SUPER:   /* units are 125us */
1394                 data->intr_interval = usecs_to_jiffies(urb->interval * 125);
1395                 break;
1396         default:
1397                 data->intr_interval = msecs_to_jiffies(urb->interval);
1398                 break;
1399         }
1400
1401 done:
1402         usb_free_urb(urb);
1403
1404         return err;
1405 }
1406
1407 static void btusb_bulk_complete(struct urb *urb)
1408 {
1409         struct hci_dev *hdev = urb->context;
1410         struct btusb_data *data = hci_get_drvdata(hdev);
1411         int err;
1412
1413         BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
1414                urb->actual_length);
1415
1416         if (!test_bit(HCI_RUNNING, &hdev->flags))
1417                 return;
1418
1419         if (urb->status == 0) {
1420                 hdev->stat.byte_rx += urb->actual_length;
1421
1422                 if (data->recv_bulk(data, urb->transfer_buffer,
1423                                     urb->actual_length) < 0) {
1424                         bt_dev_err(hdev, "corrupted ACL packet");
1425                         hdev->stat.err_rx++;
1426                 }
1427         } else if (urb->status == -ENOENT) {
1428                 /* Avoid suspend failed when usb_kill_urb */
1429                 return;
1430         }
1431
1432         if (!test_bit(BTUSB_BULK_RUNNING, &data->flags))
1433                 return;
1434
1435         usb_anchor_urb(urb, &data->bulk_anchor);
1436         usb_mark_last_busy(data->udev);
1437
1438         err = usb_submit_urb(urb, GFP_ATOMIC);
1439         if (err < 0) {
1440                 /* -EPERM: urb is being killed;
1441                  * -ENODEV: device got disconnected
1442                  */
1443                 if (err != -EPERM && err != -ENODEV)
1444                         bt_dev_err(hdev, "urb %p failed to resubmit (%d)",
1445                                    urb, -err);
1446                 usb_unanchor_urb(urb);
1447         }
1448 }
1449
1450 static int btusb_submit_bulk_urb(struct hci_dev *hdev, gfp_t mem_flags)
1451 {
1452         struct btusb_data *data = hci_get_drvdata(hdev);
1453         struct urb *urb;
1454         unsigned char *buf;
1455         unsigned int pipe;
1456         int err, size = HCI_MAX_FRAME_SIZE;
1457
1458         BT_DBG("%s", hdev->name);
1459
1460         if (!data->bulk_rx_ep)
1461                 return -ENODEV;
1462
1463         urb = usb_alloc_urb(0, mem_flags);
1464         if (!urb)
1465                 return -ENOMEM;
1466
1467         buf = kmalloc(size, mem_flags);
1468         if (!buf) {
1469                 usb_free_urb(urb);
1470                 return -ENOMEM;
1471         }
1472
1473         pipe = usb_rcvbulkpipe(data->udev, data->bulk_rx_ep->bEndpointAddress);
1474
1475         usb_fill_bulk_urb(urb, data->udev, pipe, buf, size,
1476                           btusb_bulk_complete, hdev);
1477
1478         urb->transfer_flags |= URB_FREE_BUFFER;
1479
1480         usb_mark_last_busy(data->udev);
1481         usb_anchor_urb(urb, &data->bulk_anchor);
1482
1483         err = usb_submit_urb(urb, mem_flags);
1484         if (err < 0) {
1485                 if (err != -EPERM && err != -ENODEV)
1486                         bt_dev_err(hdev, "urb %p submission failed (%d)",
1487                                    urb, -err);
1488                 usb_unanchor_urb(urb);
1489         }
1490
1491         usb_free_urb(urb);
1492
1493         return err;
1494 }
1495
1496 static void btusb_isoc_complete(struct urb *urb)
1497 {
1498         struct hci_dev *hdev = urb->context;
1499         struct btusb_data *data = hci_get_drvdata(hdev);
1500         int i, err;
1501
1502         BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
1503                urb->actual_length);
1504
1505         if (!test_bit(HCI_RUNNING, &hdev->flags))
1506                 return;
1507
1508         if (urb->status == 0) {
1509                 for (i = 0; i < urb->number_of_packets; i++) {
1510                         unsigned int offset = urb->iso_frame_desc[i].offset;
1511                         unsigned int length = urb->iso_frame_desc[i].actual_length;
1512
1513                         if (urb->iso_frame_desc[i].status)
1514                                 continue;
1515
1516                         hdev->stat.byte_rx += length;
1517
1518                         if (btusb_recv_isoc(data, urb->transfer_buffer + offset,
1519                                             length) < 0) {
1520                                 bt_dev_err(hdev, "corrupted SCO packet");
1521                                 hdev->stat.err_rx++;
1522                         }
1523                 }
1524         } else if (urb->status == -ENOENT) {
1525                 /* Avoid suspend failed when usb_kill_urb */
1526                 return;
1527         }
1528
1529         if (!test_bit(BTUSB_ISOC_RUNNING, &data->flags))
1530                 return;
1531
1532         usb_anchor_urb(urb, &data->isoc_anchor);
1533
1534         err = usb_submit_urb(urb, GFP_ATOMIC);
1535         if (err < 0) {
1536                 /* -EPERM: urb is being killed;
1537                  * -ENODEV: device got disconnected
1538                  */
1539                 if (err != -EPERM && err != -ENODEV)
1540                         bt_dev_err(hdev, "urb %p failed to resubmit (%d)",
1541                                    urb, -err);
1542                 usb_unanchor_urb(urb);
1543         }
1544 }
1545
1546 static inline void __fill_isoc_descriptor_msbc(struct urb *urb, int len,
1547                                                int mtu, struct btusb_data *data)
1548 {
1549         int i = 0, offset = 0;
1550         unsigned int interval;
1551
1552         BT_DBG("len %d mtu %d", len, mtu);
1553
1554         /* For mSBC ALT 6 settings some chips need to transmit the data
1555          * continuously without the zero length of USB packets.
1556          */
1557         if (test_bit(BTUSB_ALT6_CONTINUOUS_TX, &data->flags))
1558                 goto ignore_usb_alt6_packet_flow;
1559
1560         /* For mSBC ALT 6 setting the host will send the packet at continuous
1561          * flow. As per core spec 5, vol 4, part B, table 2.1. For ALT setting
1562          * 6 the HCI PACKET INTERVAL should be 7.5ms for every usb packets.
1563          * To maintain the rate we send 63bytes of usb packets alternatively for
1564          * 7ms and 8ms to maintain the rate as 7.5ms.
1565          */
1566         if (data->usb_alt6_packet_flow) {
1567                 interval = 7;
1568                 data->usb_alt6_packet_flow = false;
1569         } else {
1570                 interval = 6;
1571                 data->usb_alt6_packet_flow = true;
1572         }
1573
1574         for (i = 0; i < interval; i++) {
1575                 urb->iso_frame_desc[i].offset = offset;
1576                 urb->iso_frame_desc[i].length = offset;
1577         }
1578
1579 ignore_usb_alt6_packet_flow:
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 inline void __fill_isoc_descriptor(struct urb *urb, int len, int mtu)
1590 {
1591         int i, offset = 0;
1592
1593         BT_DBG("len %d mtu %d", len, mtu);
1594
1595         for (i = 0; i < BTUSB_MAX_ISOC_FRAMES && len >= mtu;
1596                                         i++, offset += mtu, len -= mtu) {
1597                 urb->iso_frame_desc[i].offset = offset;
1598                 urb->iso_frame_desc[i].length = mtu;
1599         }
1600
1601         if (len && i < BTUSB_MAX_ISOC_FRAMES) {
1602                 urb->iso_frame_desc[i].offset = offset;
1603                 urb->iso_frame_desc[i].length = len;
1604                 i++;
1605         }
1606
1607         urb->number_of_packets = i;
1608 }
1609
1610 static int btusb_submit_isoc_urb(struct hci_dev *hdev, gfp_t mem_flags)
1611 {
1612         struct btusb_data *data = hci_get_drvdata(hdev);
1613         struct urb *urb;
1614         unsigned char *buf;
1615         unsigned int pipe;
1616         int err, size;
1617
1618         BT_DBG("%s", hdev->name);
1619
1620         if (!data->isoc_rx_ep)
1621                 return -ENODEV;
1622
1623         urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, mem_flags);
1624         if (!urb)
1625                 return -ENOMEM;
1626
1627         size = le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize) *
1628                                                 BTUSB_MAX_ISOC_FRAMES;
1629
1630         buf = kmalloc(size, mem_flags);
1631         if (!buf) {
1632                 usb_free_urb(urb);
1633                 return -ENOMEM;
1634         }
1635
1636         pipe = usb_rcvisocpipe(data->udev, data->isoc_rx_ep->bEndpointAddress);
1637
1638         usb_fill_int_urb(urb, data->udev, pipe, buf, size, btusb_isoc_complete,
1639                          hdev, data->isoc_rx_ep->bInterval);
1640
1641         urb->transfer_flags = URB_FREE_BUFFER | URB_ISO_ASAP;
1642
1643         __fill_isoc_descriptor(urb, size,
1644                                le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize));
1645
1646         usb_anchor_urb(urb, &data->isoc_anchor);
1647
1648         err = usb_submit_urb(urb, mem_flags);
1649         if (err < 0) {
1650                 if (err != -EPERM && err != -ENODEV)
1651                         bt_dev_err(hdev, "urb %p submission failed (%d)",
1652                                    urb, -err);
1653                 usb_unanchor_urb(urb);
1654         }
1655
1656         usb_free_urb(urb);
1657
1658         return err;
1659 }
1660
1661 static void btusb_diag_complete(struct urb *urb)
1662 {
1663         struct hci_dev *hdev = urb->context;
1664         struct btusb_data *data = hci_get_drvdata(hdev);
1665         int err;
1666
1667         BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
1668                urb->actual_length);
1669
1670         if (urb->status == 0) {
1671                 struct sk_buff *skb;
1672
1673                 skb = bt_skb_alloc(urb->actual_length, GFP_ATOMIC);
1674                 if (skb) {
1675                         skb_put_data(skb, urb->transfer_buffer,
1676                                      urb->actual_length);
1677                         hci_recv_diag(hdev, skb);
1678                 }
1679         } else if (urb->status == -ENOENT) {
1680                 /* Avoid suspend failed when usb_kill_urb */
1681                 return;
1682         }
1683
1684         if (!test_bit(BTUSB_DIAG_RUNNING, &data->flags))
1685                 return;
1686
1687         usb_anchor_urb(urb, &data->diag_anchor);
1688         usb_mark_last_busy(data->udev);
1689
1690         err = usb_submit_urb(urb, GFP_ATOMIC);
1691         if (err < 0) {
1692                 /* -EPERM: urb is being killed;
1693                  * -ENODEV: device got disconnected
1694                  */
1695                 if (err != -EPERM && err != -ENODEV)
1696                         bt_dev_err(hdev, "urb %p failed to resubmit (%d)",
1697                                    urb, -err);
1698                 usb_unanchor_urb(urb);
1699         }
1700 }
1701
1702 static int btusb_submit_diag_urb(struct hci_dev *hdev, gfp_t mem_flags)
1703 {
1704         struct btusb_data *data = hci_get_drvdata(hdev);
1705         struct urb *urb;
1706         unsigned char *buf;
1707         unsigned int pipe;
1708         int err, size = HCI_MAX_FRAME_SIZE;
1709
1710         BT_DBG("%s", hdev->name);
1711
1712         if (!data->diag_rx_ep)
1713                 return -ENODEV;
1714
1715         urb = usb_alloc_urb(0, mem_flags);
1716         if (!urb)
1717                 return -ENOMEM;
1718
1719         buf = kmalloc(size, mem_flags);
1720         if (!buf) {
1721                 usb_free_urb(urb);
1722                 return -ENOMEM;
1723         }
1724
1725         pipe = usb_rcvbulkpipe(data->udev, data->diag_rx_ep->bEndpointAddress);
1726
1727         usb_fill_bulk_urb(urb, data->udev, pipe, buf, size,
1728                           btusb_diag_complete, hdev);
1729
1730         urb->transfer_flags |= URB_FREE_BUFFER;
1731
1732         usb_mark_last_busy(data->udev);
1733         usb_anchor_urb(urb, &data->diag_anchor);
1734
1735         err = usb_submit_urb(urb, mem_flags);
1736         if (err < 0) {
1737                 if (err != -EPERM && err != -ENODEV)
1738                         bt_dev_err(hdev, "urb %p submission failed (%d)",
1739                                    urb, -err);
1740                 usb_unanchor_urb(urb);
1741         }
1742
1743         usb_free_urb(urb);
1744
1745         return err;
1746 }
1747
1748 static void btusb_tx_complete(struct urb *urb)
1749 {
1750         struct sk_buff *skb = urb->context;
1751         struct hci_dev *hdev = (struct hci_dev *)skb->dev;
1752         struct btusb_data *data = hci_get_drvdata(hdev);
1753         unsigned long flags;
1754
1755         BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
1756                urb->actual_length);
1757
1758         if (!test_bit(HCI_RUNNING, &hdev->flags))
1759                 goto done;
1760
1761         if (!urb->status) {
1762                 hdev->stat.byte_tx += urb->transfer_buffer_length;
1763         } else {
1764                 if (hci_skb_pkt_type(skb) == HCI_COMMAND_PKT)
1765                         hci_cmd_sync_cancel(hdev, -urb->status);
1766                 hdev->stat.err_tx++;
1767         }
1768
1769 done:
1770         spin_lock_irqsave(&data->txlock, flags);
1771         data->tx_in_flight--;
1772         spin_unlock_irqrestore(&data->txlock, flags);
1773
1774         kfree(urb->setup_packet);
1775
1776         kfree_skb(skb);
1777 }
1778
1779 static void btusb_isoc_tx_complete(struct urb *urb)
1780 {
1781         struct sk_buff *skb = urb->context;
1782         struct hci_dev *hdev = (struct hci_dev *)skb->dev;
1783
1784         BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
1785                urb->actual_length);
1786
1787         if (!test_bit(HCI_RUNNING, &hdev->flags))
1788                 goto done;
1789
1790         if (!urb->status)
1791                 hdev->stat.byte_tx += urb->transfer_buffer_length;
1792         else
1793                 hdev->stat.err_tx++;
1794
1795 done:
1796         kfree(urb->setup_packet);
1797
1798         kfree_skb(skb);
1799 }
1800
1801 static int btusb_open(struct hci_dev *hdev)
1802 {
1803         struct btusb_data *data = hci_get_drvdata(hdev);
1804         int err;
1805
1806         BT_DBG("%s", hdev->name);
1807
1808         err = usb_autopm_get_interface(data->intf);
1809         if (err < 0)
1810                 return err;
1811
1812         /* Patching USB firmware files prior to starting any URBs of HCI path
1813          * It is more safe to use USB bulk channel for downloading USB patch
1814          */
1815         if (data->setup_on_usb) {
1816                 err = data->setup_on_usb(hdev);
1817                 if (err < 0)
1818                         goto setup_fail;
1819         }
1820
1821         data->intf->needs_remote_wakeup = 1;
1822
1823         if (test_and_set_bit(BTUSB_INTR_RUNNING, &data->flags))
1824                 goto done;
1825
1826         err = btusb_submit_intr_urb(hdev, GFP_KERNEL);
1827         if (err < 0)
1828                 goto failed;
1829
1830         err = btusb_submit_bulk_urb(hdev, GFP_KERNEL);
1831         if (err < 0) {
1832                 usb_kill_anchored_urbs(&data->intr_anchor);
1833                 goto failed;
1834         }
1835
1836         set_bit(BTUSB_BULK_RUNNING, &data->flags);
1837         btusb_submit_bulk_urb(hdev, GFP_KERNEL);
1838
1839         if (data->diag) {
1840                 if (!btusb_submit_diag_urb(hdev, GFP_KERNEL))
1841                         set_bit(BTUSB_DIAG_RUNNING, &data->flags);
1842         }
1843
1844 done:
1845         usb_autopm_put_interface(data->intf);
1846         return 0;
1847
1848 failed:
1849         clear_bit(BTUSB_INTR_RUNNING, &data->flags);
1850 setup_fail:
1851         usb_autopm_put_interface(data->intf);
1852         return err;
1853 }
1854
1855 static void btusb_stop_traffic(struct btusb_data *data)
1856 {
1857         usb_kill_anchored_urbs(&data->intr_anchor);
1858         usb_kill_anchored_urbs(&data->bulk_anchor);
1859         usb_kill_anchored_urbs(&data->isoc_anchor);
1860         usb_kill_anchored_urbs(&data->diag_anchor);
1861         usb_kill_anchored_urbs(&data->ctrl_anchor);
1862 }
1863
1864 static int btusb_close(struct hci_dev *hdev)
1865 {
1866         struct btusb_data *data = hci_get_drvdata(hdev);
1867         int err;
1868
1869         BT_DBG("%s", hdev->name);
1870
1871         cancel_delayed_work(&data->rx_work);
1872         cancel_work_sync(&data->work);
1873         cancel_work_sync(&data->waker);
1874
1875         skb_queue_purge(&data->acl_q);
1876
1877         clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
1878         clear_bit(BTUSB_BULK_RUNNING, &data->flags);
1879         clear_bit(BTUSB_INTR_RUNNING, &data->flags);
1880         clear_bit(BTUSB_DIAG_RUNNING, &data->flags);
1881
1882         btusb_stop_traffic(data);
1883         btusb_free_frags(data);
1884
1885         err = usb_autopm_get_interface(data->intf);
1886         if (err < 0)
1887                 goto failed;
1888
1889         data->intf->needs_remote_wakeup = 0;
1890
1891         /* Enable remote wake up for auto-suspend */
1892         if (test_bit(BTUSB_WAKEUP_AUTOSUSPEND, &data->flags))
1893                 data->intf->needs_remote_wakeup = 1;
1894
1895         usb_autopm_put_interface(data->intf);
1896
1897 failed:
1898         usb_scuttle_anchored_urbs(&data->deferred);
1899         return 0;
1900 }
1901
1902 static int btusb_flush(struct hci_dev *hdev)
1903 {
1904         struct btusb_data *data = hci_get_drvdata(hdev);
1905
1906         BT_DBG("%s", hdev->name);
1907
1908         cancel_delayed_work(&data->rx_work);
1909
1910         skb_queue_purge(&data->acl_q);
1911
1912         usb_kill_anchored_urbs(&data->tx_anchor);
1913         btusb_free_frags(data);
1914
1915         return 0;
1916 }
1917
1918 static struct urb *alloc_ctrl_urb(struct hci_dev *hdev, struct sk_buff *skb)
1919 {
1920         struct btusb_data *data = hci_get_drvdata(hdev);
1921         struct usb_ctrlrequest *dr;
1922         struct urb *urb;
1923         unsigned int pipe;
1924
1925         urb = usb_alloc_urb(0, GFP_KERNEL);
1926         if (!urb)
1927                 return ERR_PTR(-ENOMEM);
1928
1929         dr = kmalloc(sizeof(*dr), GFP_KERNEL);
1930         if (!dr) {
1931                 usb_free_urb(urb);
1932                 return ERR_PTR(-ENOMEM);
1933         }
1934
1935         dr->bRequestType = data->cmdreq_type;
1936         dr->bRequest     = data->cmdreq;
1937         dr->wIndex       = 0;
1938         dr->wValue       = 0;
1939         dr->wLength      = __cpu_to_le16(skb->len);
1940
1941         pipe = usb_sndctrlpipe(data->udev, 0x00);
1942
1943         usb_fill_control_urb(urb, data->udev, pipe, (void *)dr,
1944                              skb->data, skb->len, btusb_tx_complete, skb);
1945
1946         skb->dev = (void *)hdev;
1947
1948         return urb;
1949 }
1950
1951 static struct urb *alloc_bulk_urb(struct hci_dev *hdev, struct sk_buff *skb)
1952 {
1953         struct btusb_data *data = hci_get_drvdata(hdev);
1954         struct urb *urb;
1955         unsigned int pipe;
1956
1957         if (!data->bulk_tx_ep)
1958                 return ERR_PTR(-ENODEV);
1959
1960         urb = usb_alloc_urb(0, GFP_KERNEL);
1961         if (!urb)
1962                 return ERR_PTR(-ENOMEM);
1963
1964         pipe = usb_sndbulkpipe(data->udev, data->bulk_tx_ep->bEndpointAddress);
1965
1966         usb_fill_bulk_urb(urb, data->udev, pipe,
1967                           skb->data, skb->len, btusb_tx_complete, skb);
1968
1969         skb->dev = (void *)hdev;
1970
1971         return urb;
1972 }
1973
1974 static struct urb *alloc_isoc_urb(struct hci_dev *hdev, struct sk_buff *skb)
1975 {
1976         struct btusb_data *data = hci_get_drvdata(hdev);
1977         struct urb *urb;
1978         unsigned int pipe;
1979
1980         if (!data->isoc_tx_ep)
1981                 return ERR_PTR(-ENODEV);
1982
1983         urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, GFP_KERNEL);
1984         if (!urb)
1985                 return ERR_PTR(-ENOMEM);
1986
1987         pipe = usb_sndisocpipe(data->udev, data->isoc_tx_ep->bEndpointAddress);
1988
1989         usb_fill_int_urb(urb, data->udev, pipe,
1990                          skb->data, skb->len, btusb_isoc_tx_complete,
1991                          skb, data->isoc_tx_ep->bInterval);
1992
1993         urb->transfer_flags  = URB_ISO_ASAP;
1994
1995         if (data->isoc_altsetting == 6)
1996                 __fill_isoc_descriptor_msbc(urb, skb->len,
1997                                             le16_to_cpu(data->isoc_tx_ep->wMaxPacketSize),
1998                                             data);
1999         else
2000                 __fill_isoc_descriptor(urb, skb->len,
2001                                        le16_to_cpu(data->isoc_tx_ep->wMaxPacketSize));
2002         skb->dev = (void *)hdev;
2003
2004         return urb;
2005 }
2006
2007 static int submit_tx_urb(struct hci_dev *hdev, struct urb *urb)
2008 {
2009         struct btusb_data *data = hci_get_drvdata(hdev);
2010         int err;
2011
2012         usb_anchor_urb(urb, &data->tx_anchor);
2013
2014         err = usb_submit_urb(urb, GFP_KERNEL);
2015         if (err < 0) {
2016                 if (err != -EPERM && err != -ENODEV)
2017                         bt_dev_err(hdev, "urb %p submission failed (%d)",
2018                                    urb, -err);
2019                 kfree(urb->setup_packet);
2020                 usb_unanchor_urb(urb);
2021         } else {
2022                 usb_mark_last_busy(data->udev);
2023         }
2024
2025         usb_free_urb(urb);
2026         return err;
2027 }
2028
2029 static int submit_or_queue_tx_urb(struct hci_dev *hdev, struct urb *urb)
2030 {
2031         struct btusb_data *data = hci_get_drvdata(hdev);
2032         unsigned long flags;
2033         bool suspending;
2034
2035         spin_lock_irqsave(&data->txlock, flags);
2036         suspending = test_bit(BTUSB_SUSPENDING, &data->flags);
2037         if (!suspending)
2038                 data->tx_in_flight++;
2039         spin_unlock_irqrestore(&data->txlock, flags);
2040
2041         if (!suspending)
2042                 return submit_tx_urb(hdev, urb);
2043
2044         usb_anchor_urb(urb, &data->deferred);
2045         schedule_work(&data->waker);
2046
2047         usb_free_urb(urb);
2048         return 0;
2049 }
2050
2051 static int btusb_send_frame(struct hci_dev *hdev, struct sk_buff *skb)
2052 {
2053         struct urb *urb;
2054
2055         BT_DBG("%s", hdev->name);
2056
2057         switch (hci_skb_pkt_type(skb)) {
2058         case HCI_COMMAND_PKT:
2059                 urb = alloc_ctrl_urb(hdev, skb);
2060                 if (IS_ERR(urb))
2061                         return PTR_ERR(urb);
2062
2063                 hdev->stat.cmd_tx++;
2064                 return submit_or_queue_tx_urb(hdev, urb);
2065
2066         case HCI_ACLDATA_PKT:
2067                 urb = alloc_bulk_urb(hdev, skb);
2068                 if (IS_ERR(urb))
2069                         return PTR_ERR(urb);
2070
2071                 hdev->stat.acl_tx++;
2072                 return submit_or_queue_tx_urb(hdev, urb);
2073
2074         case HCI_SCODATA_PKT:
2075                 if (hci_conn_num(hdev, SCO_LINK) < 1)
2076                         return -ENODEV;
2077
2078                 urb = alloc_isoc_urb(hdev, skb);
2079                 if (IS_ERR(urb))
2080                         return PTR_ERR(urb);
2081
2082                 hdev->stat.sco_tx++;
2083                 return submit_tx_urb(hdev, urb);
2084
2085         case HCI_ISODATA_PKT:
2086                 urb = alloc_bulk_urb(hdev, skb);
2087                 if (IS_ERR(urb))
2088                         return PTR_ERR(urb);
2089
2090                 return submit_or_queue_tx_urb(hdev, urb);
2091         }
2092
2093         return -EILSEQ;
2094 }
2095
2096 static void btusb_notify(struct hci_dev *hdev, unsigned int evt)
2097 {
2098         struct btusb_data *data = hci_get_drvdata(hdev);
2099
2100         BT_DBG("%s evt %d", hdev->name, evt);
2101
2102         if (hci_conn_num(hdev, SCO_LINK) != data->sco_num) {
2103                 data->sco_num = hci_conn_num(hdev, SCO_LINK);
2104                 data->air_mode = evt;
2105                 schedule_work(&data->work);
2106         }
2107 }
2108
2109 static inline int __set_isoc_interface(struct hci_dev *hdev, int altsetting)
2110 {
2111         struct btusb_data *data = hci_get_drvdata(hdev);
2112         struct usb_interface *intf = data->isoc;
2113         struct usb_endpoint_descriptor *ep_desc;
2114         int i, err;
2115
2116         if (!data->isoc)
2117                 return -ENODEV;
2118
2119         err = usb_set_interface(data->udev, data->isoc_ifnum, altsetting);
2120         if (err < 0) {
2121                 bt_dev_err(hdev, "setting interface failed (%d)", -err);
2122                 return err;
2123         }
2124
2125         data->isoc_altsetting = altsetting;
2126
2127         data->isoc_tx_ep = NULL;
2128         data->isoc_rx_ep = NULL;
2129
2130         for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
2131                 ep_desc = &intf->cur_altsetting->endpoint[i].desc;
2132
2133                 if (!data->isoc_tx_ep && usb_endpoint_is_isoc_out(ep_desc)) {
2134                         data->isoc_tx_ep = ep_desc;
2135                         continue;
2136                 }
2137
2138                 if (!data->isoc_rx_ep && usb_endpoint_is_isoc_in(ep_desc)) {
2139                         data->isoc_rx_ep = ep_desc;
2140                         continue;
2141                 }
2142         }
2143
2144         if (!data->isoc_tx_ep || !data->isoc_rx_ep) {
2145                 bt_dev_err(hdev, "invalid SCO descriptors");
2146                 return -ENODEV;
2147         }
2148
2149         return 0;
2150 }
2151
2152 static int btusb_switch_alt_setting(struct hci_dev *hdev, int new_alts)
2153 {
2154         struct btusb_data *data = hci_get_drvdata(hdev);
2155         int err;
2156
2157         if (data->isoc_altsetting != new_alts) {
2158                 unsigned long flags;
2159
2160                 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
2161                 usb_kill_anchored_urbs(&data->isoc_anchor);
2162
2163                 /* When isochronous alternate setting needs to be
2164                  * changed, because SCO connection has been added
2165                  * or removed, a packet fragment may be left in the
2166                  * reassembling state. This could lead to wrongly
2167                  * assembled fragments.
2168                  *
2169                  * Clear outstanding fragment when selecting a new
2170                  * alternate setting.
2171                  */
2172                 spin_lock_irqsave(&data->rxlock, flags);
2173                 dev_kfree_skb_irq(data->sco_skb);
2174                 data->sco_skb = NULL;
2175                 spin_unlock_irqrestore(&data->rxlock, flags);
2176
2177                 err = __set_isoc_interface(hdev, new_alts);
2178                 if (err < 0)
2179                         return err;
2180         }
2181
2182         if (!test_and_set_bit(BTUSB_ISOC_RUNNING, &data->flags)) {
2183                 if (btusb_submit_isoc_urb(hdev, GFP_KERNEL) < 0)
2184                         clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
2185                 else
2186                         btusb_submit_isoc_urb(hdev, GFP_KERNEL);
2187         }
2188
2189         return 0;
2190 }
2191
2192 static struct usb_host_interface *btusb_find_altsetting(struct btusb_data *data,
2193                                                         int alt)
2194 {
2195         struct usb_interface *intf = data->isoc;
2196         int i;
2197
2198         BT_DBG("Looking for Alt no :%d", alt);
2199
2200         if (!intf)
2201                 return NULL;
2202
2203         for (i = 0; i < intf->num_altsetting; i++) {
2204                 if (intf->altsetting[i].desc.bAlternateSetting == alt)
2205                         return &intf->altsetting[i];
2206         }
2207
2208         return NULL;
2209 }
2210
2211 static void btusb_work(struct work_struct *work)
2212 {
2213         struct btusb_data *data = container_of(work, struct btusb_data, work);
2214         struct hci_dev *hdev = data->hdev;
2215         int new_alts = 0;
2216         int err;
2217
2218         if (data->sco_num > 0) {
2219                 if (!test_bit(BTUSB_DID_ISO_RESUME, &data->flags)) {
2220                         err = usb_autopm_get_interface(data->isoc ? data->isoc : data->intf);
2221                         if (err < 0) {
2222                                 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
2223                                 usb_kill_anchored_urbs(&data->isoc_anchor);
2224                                 return;
2225                         }
2226
2227                         set_bit(BTUSB_DID_ISO_RESUME, &data->flags);
2228                 }
2229
2230                 if (data->air_mode == HCI_NOTIFY_ENABLE_SCO_CVSD) {
2231                         if (hdev->voice_setting & 0x0020) {
2232                                 static const int alts[3] = { 2, 4, 5 };
2233
2234                                 new_alts = alts[data->sco_num - 1];
2235                         } else {
2236                                 new_alts = data->sco_num;
2237                         }
2238                 } else if (data->air_mode == HCI_NOTIFY_ENABLE_SCO_TRANSP) {
2239                         /* Bluetooth USB spec recommends alt 6 (63 bytes), but
2240                          * many adapters do not support it.  Alt 1 appears to
2241                          * work for all adapters that do not have alt 6, and
2242                          * which work with WBS at all.  Some devices prefer
2243                          * alt 3 (HCI payload >= 60 Bytes let air packet
2244                          * data satisfy 60 bytes), requiring
2245                          * MTU >= 3 (packets) * 25 (size) - 3 (headers) = 72
2246                          * see also Core spec 5, vol 4, B 2.1.1 & Table 2.1.
2247                          */
2248                         if (btusb_find_altsetting(data, 6))
2249                                 new_alts = 6;
2250                         else if (btusb_find_altsetting(data, 3) &&
2251                                  hdev->sco_mtu >= 72 &&
2252                                  test_bit(BTUSB_USE_ALT3_FOR_WBS, &data->flags))
2253                                 new_alts = 3;
2254                         else
2255                                 new_alts = 1;
2256                 }
2257
2258                 if (btusb_switch_alt_setting(hdev, new_alts) < 0)
2259                         bt_dev_err(hdev, "set USB alt:(%d) failed!", new_alts);
2260         } else {
2261                 usb_kill_anchored_urbs(&data->isoc_anchor);
2262
2263                 if (test_and_clear_bit(BTUSB_ISOC_RUNNING, &data->flags))
2264                         __set_isoc_interface(hdev, 0);
2265
2266                 if (test_and_clear_bit(BTUSB_DID_ISO_RESUME, &data->flags))
2267                         usb_autopm_put_interface(data->isoc ? data->isoc : data->intf);
2268         }
2269 }
2270
2271 static void btusb_waker(struct work_struct *work)
2272 {
2273         struct btusb_data *data = container_of(work, struct btusb_data, waker);
2274         int err;
2275
2276         err = usb_autopm_get_interface(data->intf);
2277         if (err < 0)
2278                 return;
2279
2280         usb_autopm_put_interface(data->intf);
2281 }
2282
2283 static void btusb_rx_work(struct work_struct *work)
2284 {
2285         struct btusb_data *data = container_of(work, struct btusb_data,
2286                                                rx_work.work);
2287         struct sk_buff *skb;
2288
2289         /* Dequeue ACL data received during the interval */
2290         while ((skb = skb_dequeue(&data->acl_q)))
2291                 data->recv_acl(data->hdev, skb);
2292 }
2293
2294 static int btusb_setup_bcm92035(struct hci_dev *hdev)
2295 {
2296         struct sk_buff *skb;
2297         u8 val = 0x00;
2298
2299         BT_DBG("%s", hdev->name);
2300
2301         skb = __hci_cmd_sync(hdev, 0xfc3b, 1, &val, HCI_INIT_TIMEOUT);
2302         if (IS_ERR(skb))
2303                 bt_dev_err(hdev, "BCM92035 command failed (%ld)", PTR_ERR(skb));
2304         else
2305                 kfree_skb(skb);
2306
2307         return 0;
2308 }
2309
2310 static int btusb_setup_csr(struct hci_dev *hdev)
2311 {
2312         struct btusb_data *data = hci_get_drvdata(hdev);
2313         u16 bcdDevice = le16_to_cpu(data->udev->descriptor.bcdDevice);
2314         struct hci_rp_read_local_version *rp;
2315         struct sk_buff *skb;
2316         bool is_fake = false;
2317         int ret;
2318
2319         BT_DBG("%s", hdev->name);
2320
2321         skb = __hci_cmd_sync(hdev, HCI_OP_READ_LOCAL_VERSION, 0, NULL,
2322                              HCI_INIT_TIMEOUT);
2323         if (IS_ERR(skb)) {
2324                 int err = PTR_ERR(skb);
2325                 bt_dev_err(hdev, "CSR: Local version failed (%d)", err);
2326                 return err;
2327         }
2328
2329         rp = skb_pull_data(skb, sizeof(*rp));
2330         if (!rp) {
2331                 bt_dev_err(hdev, "CSR: Local version length mismatch");
2332                 kfree_skb(skb);
2333                 return -EIO;
2334         }
2335
2336         bt_dev_info(hdev, "CSR: Setting up dongle with HCI ver=%u rev=%04x",
2337                     rp->hci_ver, le16_to_cpu(rp->hci_rev));
2338
2339         bt_dev_info(hdev, "LMP ver=%u subver=%04x; manufacturer=%u",
2340                     rp->lmp_ver, le16_to_cpu(rp->lmp_subver),
2341                     le16_to_cpu(rp->manufacturer));
2342
2343         /* Detect a wide host of Chinese controllers that aren't CSR.
2344          *
2345          * Known fake bcdDevices: 0x0100, 0x0134, 0x1915, 0x2520, 0x7558, 0x8891
2346          *
2347          * The main thing they have in common is that these are really popular low-cost
2348          * options that support newer Bluetooth versions but rely on heavy VID/PID
2349          * squatting of this poor old Bluetooth 1.1 device. Even sold as such.
2350          *
2351          * We detect actual CSR devices by checking that the HCI manufacturer code
2352          * is Cambridge Silicon Radio (10) and ensuring that LMP sub-version and
2353          * HCI rev values always match. As they both store the firmware number.
2354          */
2355         if (le16_to_cpu(rp->manufacturer) != 10 ||
2356             le16_to_cpu(rp->hci_rev) != le16_to_cpu(rp->lmp_subver))
2357                 is_fake = true;
2358
2359         /* Known legit CSR firmware build numbers and their supported BT versions:
2360          * - 1.1 (0x1) -> 0x0073, 0x020d, 0x033c, 0x034e
2361          * - 1.2 (0x2) ->                 0x04d9, 0x0529
2362          * - 2.0 (0x3) ->         0x07a6, 0x07ad, 0x0c5c
2363          * - 2.1 (0x4) ->         0x149c, 0x1735, 0x1899 (0x1899 is a BlueCore4-External)
2364          * - 4.0 (0x6) ->         0x1d86, 0x2031, 0x22bb
2365          *
2366          * e.g. Real CSR dongles with LMP subversion 0x73 are old enough that
2367          *      support BT 1.1 only; so it's a dead giveaway when some
2368          *      third-party BT 4.0 dongle reuses it.
2369          */
2370         else if (le16_to_cpu(rp->lmp_subver) <= 0x034e &&
2371                  rp->hci_ver > BLUETOOTH_VER_1_1)
2372                 is_fake = true;
2373
2374         else if (le16_to_cpu(rp->lmp_subver) <= 0x0529 &&
2375                  rp->hci_ver > BLUETOOTH_VER_1_2)
2376                 is_fake = true;
2377
2378         else if (le16_to_cpu(rp->lmp_subver) <= 0x0c5c &&
2379                  rp->hci_ver > BLUETOOTH_VER_2_0)
2380                 is_fake = true;
2381
2382         else if (le16_to_cpu(rp->lmp_subver) <= 0x1899 &&
2383                  rp->hci_ver > BLUETOOTH_VER_2_1)
2384                 is_fake = true;
2385
2386         else if (le16_to_cpu(rp->lmp_subver) <= 0x22bb &&
2387                  rp->hci_ver > BLUETOOTH_VER_4_0)
2388                 is_fake = true;
2389
2390         /* Other clones which beat all the above checks */
2391         else if (bcdDevice == 0x0134 &&
2392                  le16_to_cpu(rp->lmp_subver) == 0x0c5c &&
2393                  rp->hci_ver == BLUETOOTH_VER_2_0)
2394                 is_fake = true;
2395
2396         if (is_fake) {
2397                 bt_dev_warn(hdev, "CSR: Unbranded CSR clone detected; adding workarounds and force-suspending once...");
2398
2399                 /* Generally these clones have big discrepancies between
2400                  * advertised features and what's actually supported.
2401                  * Probably will need to be expanded in the future;
2402                  * without these the controller will lock up.
2403                  */
2404                 set_bit(HCI_QUIRK_BROKEN_STORED_LINK_KEY, &hdev->quirks);
2405                 set_bit(HCI_QUIRK_BROKEN_ERR_DATA_REPORTING, &hdev->quirks);
2406                 set_bit(HCI_QUIRK_BROKEN_FILTER_CLEAR_ALL, &hdev->quirks);
2407                 set_bit(HCI_QUIRK_NO_SUSPEND_NOTIFIER, &hdev->quirks);
2408
2409                 /* Clear the reset quirk since this is not an actual
2410                  * early Bluetooth 1.1 device from CSR.
2411                  */
2412                 clear_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
2413                 clear_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks);
2414
2415                 /*
2416                  * Special workaround for these BT 4.0 chip clones, and potentially more:
2417                  *
2418                  * - 0x0134: a Barrot 8041a02                 (HCI rev: 0x0810 sub: 0x1012)
2419                  * - 0x7558: IC markings FR3191AHAL 749H15143 (HCI rev/sub-version: 0x0709)
2420                  *
2421                  * These controllers are really messed-up.
2422                  *
2423                  * 1. Their bulk RX endpoint will never report any data unless
2424                  *    the device was suspended at least once (yes, really).
2425                  * 2. They will not wakeup when autosuspended and receiving data
2426                  *    on their bulk RX endpoint from e.g. a keyboard or mouse
2427                  *    (IOW remote-wakeup support is broken for the bulk endpoint).
2428                  *
2429                  * To fix 1. enable runtime-suspend, force-suspend the
2430                  * HCI and then wake-it up by disabling runtime-suspend.
2431                  *
2432                  * To fix 2. clear the HCI's can_wake flag, this way the HCI
2433                  * will still be autosuspended when it is not open.
2434                  *
2435                  * --
2436                  *
2437                  * Because these are widespread problems we prefer generic solutions; so
2438                  * apply this initialization quirk to every controller that gets here,
2439                  * it should be harmless. The alternative is to not work at all.
2440                  */
2441                 pm_runtime_allow(&data->udev->dev);
2442
2443                 ret = pm_runtime_suspend(&data->udev->dev);
2444                 if (ret >= 0)
2445                         msleep(200);
2446                 else
2447                         bt_dev_warn(hdev, "CSR: Couldn't suspend the device for our Barrot 8041a02 receive-issue workaround");
2448
2449                 pm_runtime_forbid(&data->udev->dev);
2450
2451                 device_set_wakeup_capable(&data->udev->dev, false);
2452
2453                 /* Re-enable autosuspend if this was requested */
2454                 if (enable_autosuspend)
2455                         usb_enable_autosuspend(data->udev);
2456         }
2457
2458         kfree_skb(skb);
2459
2460         return 0;
2461 }
2462
2463 static int inject_cmd_complete(struct hci_dev *hdev, __u16 opcode)
2464 {
2465         struct sk_buff *skb;
2466         struct hci_event_hdr *hdr;
2467         struct hci_ev_cmd_complete *evt;
2468
2469         skb = bt_skb_alloc(sizeof(*hdr) + sizeof(*evt) + 1, GFP_KERNEL);
2470         if (!skb)
2471                 return -ENOMEM;
2472
2473         hdr = skb_put(skb, sizeof(*hdr));
2474         hdr->evt = HCI_EV_CMD_COMPLETE;
2475         hdr->plen = sizeof(*evt) + 1;
2476
2477         evt = skb_put(skb, sizeof(*evt));
2478         evt->ncmd = 0x01;
2479         evt->opcode = cpu_to_le16(opcode);
2480
2481         skb_put_u8(skb, 0x00);
2482
2483         hci_skb_pkt_type(skb) = HCI_EVENT_PKT;
2484
2485         return hci_recv_frame(hdev, skb);
2486 }
2487
2488 static int btusb_recv_bulk_intel(struct btusb_data *data, void *buffer,
2489                                  int count)
2490 {
2491         struct hci_dev *hdev = data->hdev;
2492
2493         /* When the device is in bootloader mode, then it can send
2494          * events via the bulk endpoint. These events are treated the
2495          * same way as the ones received from the interrupt endpoint.
2496          */
2497         if (btintel_test_flag(hdev, INTEL_BOOTLOADER))
2498                 return btusb_recv_intr(data, buffer, count);
2499
2500         return btusb_recv_bulk(data, buffer, count);
2501 }
2502
2503 static int btusb_send_frame_intel(struct hci_dev *hdev, struct sk_buff *skb)
2504 {
2505         struct urb *urb;
2506
2507         BT_DBG("%s", hdev->name);
2508
2509         switch (hci_skb_pkt_type(skb)) {
2510         case HCI_COMMAND_PKT:
2511                 if (btintel_test_flag(hdev, INTEL_BOOTLOADER)) {
2512                         struct hci_command_hdr *cmd = (void *)skb->data;
2513                         __u16 opcode = le16_to_cpu(cmd->opcode);
2514
2515                         /* When in bootloader mode and the command 0xfc09
2516                          * is received, it needs to be send down the
2517                          * bulk endpoint. So allocate a bulk URB instead.
2518                          */
2519                         if (opcode == 0xfc09)
2520                                 urb = alloc_bulk_urb(hdev, skb);
2521                         else
2522                                 urb = alloc_ctrl_urb(hdev, skb);
2523
2524                         /* When the 0xfc01 command is issued to boot into
2525                          * the operational firmware, it will actually not
2526                          * send a command complete event. To keep the flow
2527                          * control working inject that event here.
2528                          */
2529                         if (opcode == 0xfc01)
2530                                 inject_cmd_complete(hdev, opcode);
2531                 } else {
2532                         urb = alloc_ctrl_urb(hdev, skb);
2533                 }
2534                 if (IS_ERR(urb))
2535                         return PTR_ERR(urb);
2536
2537                 hdev->stat.cmd_tx++;
2538                 return submit_or_queue_tx_urb(hdev, urb);
2539
2540         case HCI_ACLDATA_PKT:
2541                 urb = alloc_bulk_urb(hdev, skb);
2542                 if (IS_ERR(urb))
2543                         return PTR_ERR(urb);
2544
2545                 hdev->stat.acl_tx++;
2546                 return submit_or_queue_tx_urb(hdev, urb);
2547
2548         case HCI_SCODATA_PKT:
2549                 if (hci_conn_num(hdev, SCO_LINK) < 1)
2550                         return -ENODEV;
2551
2552                 urb = alloc_isoc_urb(hdev, skb);
2553                 if (IS_ERR(urb))
2554                         return PTR_ERR(urb);
2555
2556                 hdev->stat.sco_tx++;
2557                 return submit_tx_urb(hdev, urb);
2558
2559         case HCI_ISODATA_PKT:
2560                 urb = alloc_bulk_urb(hdev, skb);
2561                 if (IS_ERR(urb))
2562                         return PTR_ERR(urb);
2563
2564                 return submit_or_queue_tx_urb(hdev, urb);
2565         }
2566
2567         return -EILSEQ;
2568 }
2569
2570 static int btusb_setup_realtek(struct hci_dev *hdev)
2571 {
2572         struct btusb_data *data = hci_get_drvdata(hdev);
2573         int ret;
2574
2575         ret = btrtl_setup_realtek(hdev);
2576
2577         if (btrealtek_test_flag(data->hdev, REALTEK_ALT6_CONTINUOUS_TX_CHIP))
2578                 set_bit(BTUSB_ALT6_CONTINUOUS_TX, &data->flags);
2579
2580         return ret;
2581 }
2582
2583 static int btusb_recv_event_realtek(struct hci_dev *hdev, struct sk_buff *skb)
2584 {
2585         if (skb->data[0] == HCI_VENDOR_PKT && skb->data[2] == RTK_SUB_EVENT_CODE_COREDUMP) {
2586                 struct rtk_dev_coredump_hdr hdr = {
2587                         .code = RTK_DEVCOREDUMP_CODE_MEMDUMP,
2588                 };
2589
2590                 bt_dev_dbg(hdev, "RTL: received coredump vendor evt, len %u",
2591                         skb->len);
2592
2593                 btusb_rtl_alloc_devcoredump(hdev, &hdr, skb->data, skb->len);
2594                 kfree_skb(skb);
2595
2596                 return 0;
2597         }
2598
2599         return hci_recv_frame(hdev, skb);
2600 }
2601
2602 /* UHW CR mapping */
2603 #define MTK_BT_MISC             0x70002510
2604 #define MTK_BT_SUBSYS_RST       0x70002610
2605 #define MTK_UDMA_INT_STA_BT     0x74000024
2606 #define MTK_UDMA_INT_STA_BT1    0x74000308
2607 #define MTK_BT_WDT_STATUS       0x740003A0
2608 #define MTK_EP_RST_OPT          0x74011890
2609 #define MTK_EP_RST_IN_OUT_OPT   0x00010001
2610 #define MTK_BT_RST_DONE         0x00000100
2611 #define MTK_BT_RESET_REG_CONNV3 0x70028610
2612 #define MTK_BT_READ_DEV_ID      0x70010200
2613
2614
2615 static void btusb_mtk_wmt_recv(struct urb *urb)
2616 {
2617         struct hci_dev *hdev = urb->context;
2618         struct btusb_data *data = hci_get_drvdata(hdev);
2619         struct sk_buff *skb;
2620         int err;
2621
2622         if (urb->status == 0 && urb->actual_length > 0) {
2623                 hdev->stat.byte_rx += urb->actual_length;
2624
2625                 /* WMT event shouldn't be fragmented and the size should be
2626                  * less than HCI_WMT_MAX_EVENT_SIZE.
2627                  */
2628                 skb = bt_skb_alloc(HCI_WMT_MAX_EVENT_SIZE, GFP_ATOMIC);
2629                 if (!skb) {
2630                         hdev->stat.err_rx++;
2631                         kfree(urb->setup_packet);
2632                         return;
2633                 }
2634
2635                 hci_skb_pkt_type(skb) = HCI_EVENT_PKT;
2636                 skb_put_data(skb, urb->transfer_buffer, urb->actual_length);
2637
2638                 /* When someone waits for the WMT event, the skb is being cloned
2639                  * and being processed the events from there then.
2640                  */
2641                 if (test_bit(BTUSB_TX_WAIT_VND_EVT, &data->flags)) {
2642                         data->evt_skb = skb_clone(skb, GFP_ATOMIC);
2643                         if (!data->evt_skb) {
2644                                 kfree_skb(skb);
2645                                 kfree(urb->setup_packet);
2646                                 return;
2647                         }
2648                 }
2649
2650                 err = hci_recv_frame(hdev, skb);
2651                 if (err < 0) {
2652                         kfree_skb(data->evt_skb);
2653                         data->evt_skb = NULL;
2654                         kfree(urb->setup_packet);
2655                         return;
2656                 }
2657
2658                 if (test_and_clear_bit(BTUSB_TX_WAIT_VND_EVT,
2659                                        &data->flags)) {
2660                         /* Barrier to sync with other CPUs */
2661                         smp_mb__after_atomic();
2662                         wake_up_bit(&data->flags,
2663                                     BTUSB_TX_WAIT_VND_EVT);
2664                 }
2665                 kfree(urb->setup_packet);
2666                 return;
2667         } else if (urb->status == -ENOENT) {
2668                 /* Avoid suspend failed when usb_kill_urb */
2669                 return;
2670         }
2671
2672         usb_mark_last_busy(data->udev);
2673
2674         /* The URB complete handler is still called with urb->actual_length = 0
2675          * when the event is not available, so we should keep re-submitting
2676          * URB until WMT event returns, Also, It's necessary to wait some time
2677          * between the two consecutive control URBs to relax the target device
2678          * to generate the event. Otherwise, the WMT event cannot return from
2679          * the device successfully.
2680          */
2681         udelay(500);
2682
2683         usb_anchor_urb(urb, &data->ctrl_anchor);
2684         err = usb_submit_urb(urb, GFP_ATOMIC);
2685         if (err < 0) {
2686                 kfree(urb->setup_packet);
2687                 /* -EPERM: urb is being killed;
2688                  * -ENODEV: device got disconnected
2689                  */
2690                 if (err != -EPERM && err != -ENODEV)
2691                         bt_dev_err(hdev, "urb %p failed to resubmit (%d)",
2692                                    urb, -err);
2693                 usb_unanchor_urb(urb);
2694         }
2695 }
2696
2697 static int btusb_mtk_submit_wmt_recv_urb(struct hci_dev *hdev)
2698 {
2699         struct btusb_data *data = hci_get_drvdata(hdev);
2700         struct usb_ctrlrequest *dr;
2701         unsigned char *buf;
2702         int err, size = 64;
2703         unsigned int pipe;
2704         struct urb *urb;
2705
2706         urb = usb_alloc_urb(0, GFP_KERNEL);
2707         if (!urb)
2708                 return -ENOMEM;
2709
2710         dr = kmalloc(sizeof(*dr), GFP_KERNEL);
2711         if (!dr) {
2712                 usb_free_urb(urb);
2713                 return -ENOMEM;
2714         }
2715
2716         dr->bRequestType = USB_TYPE_VENDOR | USB_DIR_IN;
2717         dr->bRequest     = 1;
2718         dr->wIndex       = cpu_to_le16(0);
2719         dr->wValue       = cpu_to_le16(48);
2720         dr->wLength      = cpu_to_le16(size);
2721
2722         buf = kmalloc(size, GFP_KERNEL);
2723         if (!buf) {
2724                 kfree(dr);
2725                 usb_free_urb(urb);
2726                 return -ENOMEM;
2727         }
2728
2729         pipe = usb_rcvctrlpipe(data->udev, 0);
2730
2731         usb_fill_control_urb(urb, data->udev, pipe, (void *)dr,
2732                              buf, size, btusb_mtk_wmt_recv, hdev);
2733
2734         urb->transfer_flags |= URB_FREE_BUFFER;
2735
2736         usb_anchor_urb(urb, &data->ctrl_anchor);
2737         err = usb_submit_urb(urb, GFP_KERNEL);
2738         if (err < 0) {
2739                 if (err != -EPERM && err != -ENODEV)
2740                         bt_dev_err(hdev, "urb %p submission failed (%d)",
2741                                    urb, -err);
2742                 usb_unanchor_urb(urb);
2743         }
2744
2745         usb_free_urb(urb);
2746
2747         return err;
2748 }
2749
2750 static int btusb_mtk_hci_wmt_sync(struct hci_dev *hdev,
2751                                   struct btmtk_hci_wmt_params *wmt_params)
2752 {
2753         struct btusb_data *data = hci_get_drvdata(hdev);
2754         struct btmtk_hci_wmt_evt_funcc *wmt_evt_funcc;
2755         u32 hlen, status = BTMTK_WMT_INVALID;
2756         struct btmtk_hci_wmt_evt *wmt_evt;
2757         struct btmtk_hci_wmt_cmd *wc;
2758         struct btmtk_wmt_hdr *hdr;
2759         int err;
2760
2761         /* Send the WMT command and wait until the WMT event returns */
2762         hlen = sizeof(*hdr) + wmt_params->dlen;
2763         if (hlen > 255)
2764                 return -EINVAL;
2765
2766         wc = kzalloc(hlen, GFP_KERNEL);
2767         if (!wc)
2768                 return -ENOMEM;
2769
2770         hdr = &wc->hdr;
2771         hdr->dir = 1;
2772         hdr->op = wmt_params->op;
2773         hdr->dlen = cpu_to_le16(wmt_params->dlen + 1);
2774         hdr->flag = wmt_params->flag;
2775         memcpy(wc->data, wmt_params->data, wmt_params->dlen);
2776
2777         set_bit(BTUSB_TX_WAIT_VND_EVT, &data->flags);
2778
2779         /* WMT cmd/event doesn't follow up the generic HCI cmd/event handling,
2780          * it needs constantly polling control pipe until the host received the
2781          * WMT event, thus, we should require to specifically acquire PM counter
2782          * on the USB to prevent the interface from entering auto suspended
2783          * while WMT cmd/event in progress.
2784          */
2785         err = usb_autopm_get_interface(data->intf);
2786         if (err < 0)
2787                 goto err_free_wc;
2788
2789         err = __hci_cmd_send(hdev, 0xfc6f, hlen, wc);
2790
2791         if (err < 0) {
2792                 clear_bit(BTUSB_TX_WAIT_VND_EVT, &data->flags);
2793                 usb_autopm_put_interface(data->intf);
2794                 goto err_free_wc;
2795         }
2796
2797         /* Submit control IN URB on demand to process the WMT event */
2798         err = btusb_mtk_submit_wmt_recv_urb(hdev);
2799
2800         usb_autopm_put_interface(data->intf);
2801
2802         if (err < 0)
2803                 goto err_free_wc;
2804
2805         /* The vendor specific WMT commands are all answered by a vendor
2806          * specific event and will have the Command Status or Command
2807          * Complete as with usual HCI command flow control.
2808          *
2809          * After sending the command, wait for BTUSB_TX_WAIT_VND_EVT
2810          * state to be cleared. The driver specific event receive routine
2811          * will clear that state and with that indicate completion of the
2812          * WMT command.
2813          */
2814         err = wait_on_bit_timeout(&data->flags, BTUSB_TX_WAIT_VND_EVT,
2815                                   TASK_INTERRUPTIBLE, HCI_INIT_TIMEOUT);
2816         if (err == -EINTR) {
2817                 bt_dev_err(hdev, "Execution of wmt command interrupted");
2818                 clear_bit(BTUSB_TX_WAIT_VND_EVT, &data->flags);
2819                 goto err_free_wc;
2820         }
2821
2822         if (err) {
2823                 bt_dev_err(hdev, "Execution of wmt command timed out");
2824                 clear_bit(BTUSB_TX_WAIT_VND_EVT, &data->flags);
2825                 err = -ETIMEDOUT;
2826                 goto err_free_wc;
2827         }
2828
2829         if (data->evt_skb == NULL)
2830                 goto err_free_wc;
2831
2832         /* Parse and handle the return WMT event */
2833         wmt_evt = (struct btmtk_hci_wmt_evt *)data->evt_skb->data;
2834         if (wmt_evt->whdr.op != hdr->op) {
2835                 bt_dev_err(hdev, "Wrong op received %d expected %d",
2836                            wmt_evt->whdr.op, hdr->op);
2837                 err = -EIO;
2838                 goto err_free_skb;
2839         }
2840
2841         switch (wmt_evt->whdr.op) {
2842         case BTMTK_WMT_SEMAPHORE:
2843                 if (wmt_evt->whdr.flag == 2)
2844                         status = BTMTK_WMT_PATCH_UNDONE;
2845                 else
2846                         status = BTMTK_WMT_PATCH_DONE;
2847                 break;
2848         case BTMTK_WMT_FUNC_CTRL:
2849                 wmt_evt_funcc = (struct btmtk_hci_wmt_evt_funcc *)wmt_evt;
2850                 if (be16_to_cpu(wmt_evt_funcc->status) == 0x404)
2851                         status = BTMTK_WMT_ON_DONE;
2852                 else if (be16_to_cpu(wmt_evt_funcc->status) == 0x420)
2853                         status = BTMTK_WMT_ON_PROGRESS;
2854                 else
2855                         status = BTMTK_WMT_ON_UNDONE;
2856                 break;
2857         case BTMTK_WMT_PATCH_DWNLD:
2858                 if (wmt_evt->whdr.flag == 2)
2859                         status = BTMTK_WMT_PATCH_DONE;
2860                 else if (wmt_evt->whdr.flag == 1)
2861                         status = BTMTK_WMT_PATCH_PROGRESS;
2862                 else
2863                         status = BTMTK_WMT_PATCH_UNDONE;
2864                 break;
2865         }
2866
2867         if (wmt_params->status)
2868                 *wmt_params->status = status;
2869
2870 err_free_skb:
2871         kfree_skb(data->evt_skb);
2872         data->evt_skb = NULL;
2873 err_free_wc:
2874         kfree(wc);
2875         return err;
2876 }
2877
2878 static int btusb_mtk_func_query(struct hci_dev *hdev)
2879 {
2880         struct btmtk_hci_wmt_params wmt_params;
2881         int status, err;
2882         u8 param = 0;
2883
2884         /* Query whether the function is enabled */
2885         wmt_params.op = BTMTK_WMT_FUNC_CTRL;
2886         wmt_params.flag = 4;
2887         wmt_params.dlen = sizeof(param);
2888         wmt_params.data = &param;
2889         wmt_params.status = &status;
2890
2891         err = btusb_mtk_hci_wmt_sync(hdev, &wmt_params);
2892         if (err < 0) {
2893                 bt_dev_err(hdev, "Failed to query function status (%d)", err);
2894                 return err;
2895         }
2896
2897         return status;
2898 }
2899
2900 static int btusb_mtk_uhw_reg_write(struct btusb_data *data, u32 reg, u32 val)
2901 {
2902         struct hci_dev *hdev = data->hdev;
2903         int pipe, err;
2904         void *buf;
2905
2906         buf = kzalloc(4, GFP_KERNEL);
2907         if (!buf)
2908                 return -ENOMEM;
2909
2910         put_unaligned_le32(val, buf);
2911
2912         pipe = usb_sndctrlpipe(data->udev, 0);
2913         err = usb_control_msg(data->udev, pipe, 0x02,
2914                               0x5E,
2915                               reg >> 16, reg & 0xffff,
2916                               buf, 4, USB_CTRL_SET_TIMEOUT);
2917         if (err < 0) {
2918                 bt_dev_err(hdev, "Failed to write uhw reg(%d)", err);
2919                 goto err_free_buf;
2920         }
2921
2922 err_free_buf:
2923         kfree(buf);
2924
2925         return err;
2926 }
2927
2928 static int btusb_mtk_uhw_reg_read(struct btusb_data *data, u32 reg, u32 *val)
2929 {
2930         struct hci_dev *hdev = data->hdev;
2931         int pipe, err;
2932         void *buf;
2933
2934         buf = kzalloc(4, GFP_KERNEL);
2935         if (!buf)
2936                 return -ENOMEM;
2937
2938         pipe = usb_rcvctrlpipe(data->udev, 0);
2939         err = usb_control_msg(data->udev, pipe, 0x01,
2940                               0xDE,
2941                               reg >> 16, reg & 0xffff,
2942                               buf, 4, USB_CTRL_SET_TIMEOUT);
2943         if (err < 0) {
2944                 bt_dev_err(hdev, "Failed to read uhw reg(%d)", err);
2945                 goto err_free_buf;
2946         }
2947
2948         *val = get_unaligned_le32(buf);
2949         bt_dev_dbg(hdev, "reg=%x, value=0x%08x", reg, *val);
2950
2951 err_free_buf:
2952         kfree(buf);
2953
2954         return err;
2955 }
2956
2957 static int btusb_mtk_reg_read(struct btusb_data *data, u32 reg, u32 *val)
2958 {
2959         int pipe, err, size = sizeof(u32);
2960         void *buf;
2961
2962         buf = kzalloc(size, GFP_KERNEL);
2963         if (!buf)
2964                 return -ENOMEM;
2965
2966         pipe = usb_rcvctrlpipe(data->udev, 0);
2967         err = usb_control_msg(data->udev, pipe, 0x63,
2968                               USB_TYPE_VENDOR | USB_DIR_IN,
2969                               reg >> 16, reg & 0xffff,
2970                               buf, size, USB_CTRL_SET_TIMEOUT);
2971         if (err < 0)
2972                 goto err_free_buf;
2973
2974         *val = get_unaligned_le32(buf);
2975
2976 err_free_buf:
2977         kfree(buf);
2978
2979         return err;
2980 }
2981
2982 static int btusb_mtk_id_get(struct btusb_data *data, u32 reg, u32 *id)
2983 {
2984         return btusb_mtk_reg_read(data, reg, id);
2985 }
2986
2987 static u32 btusb_mtk_reset_done(struct hci_dev *hdev)
2988 {
2989         struct btusb_data *data = hci_get_drvdata(hdev);
2990         u32 val = 0;
2991
2992         btusb_mtk_uhw_reg_read(data, MTK_BT_MISC, &val);
2993
2994         return val & MTK_BT_RST_DONE;
2995 }
2996
2997 static int btusb_mtk_reset(struct hci_dev *hdev, void *rst_data)
2998 {
2999         struct btusb_data *data = hci_get_drvdata(hdev);
3000         struct btmediatek_data *mediatek;
3001         u32 val;
3002         int err;
3003
3004         /* It's MediaTek specific bluetooth reset mechanism via USB */
3005         if (test_and_set_bit(BTUSB_HW_RESET_ACTIVE, &data->flags)) {
3006                 bt_dev_err(hdev, "last reset failed? Not resetting again");
3007                 return -EBUSY;
3008         }
3009
3010         err = usb_autopm_get_interface(data->intf);
3011         if (err < 0)
3012                 return err;
3013
3014         btusb_stop_traffic(data);
3015         usb_kill_anchored_urbs(&data->tx_anchor);
3016         mediatek = hci_get_priv(hdev);
3017
3018         if (mediatek->dev_id == 0x7925) {
3019                 btusb_mtk_uhw_reg_read(data, MTK_BT_RESET_REG_CONNV3, &val);
3020                 val |= (1 << 5);
3021                 btusb_mtk_uhw_reg_write(data, MTK_BT_RESET_REG_CONNV3, val);
3022                 btusb_mtk_uhw_reg_read(data, MTK_BT_RESET_REG_CONNV3, &val);
3023                 val &= 0xFFFF00FF;
3024                 val |= (1 << 13);
3025                 btusb_mtk_uhw_reg_write(data, MTK_BT_RESET_REG_CONNV3, val);
3026                 btusb_mtk_uhw_reg_write(data, MTK_EP_RST_OPT, 0x00010001);
3027                 btusb_mtk_uhw_reg_read(data, MTK_BT_RESET_REG_CONNV3, &val);
3028                 val |= (1 << 0);
3029                 btusb_mtk_uhw_reg_write(data, MTK_BT_RESET_REG_CONNV3, val);
3030                 btusb_mtk_uhw_reg_write(data, MTK_UDMA_INT_STA_BT, 0x000000FF);
3031                 btusb_mtk_uhw_reg_read(data, MTK_UDMA_INT_STA_BT, &val);
3032                 btusb_mtk_uhw_reg_write(data, MTK_UDMA_INT_STA_BT1, 0x000000FF);
3033                 btusb_mtk_uhw_reg_read(data, MTK_UDMA_INT_STA_BT1, &val);
3034                 msleep(100);
3035         } else {
3036                 /* It's Device EndPoint Reset Option Register */
3037                 bt_dev_dbg(hdev, "Initiating reset mechanism via uhw");
3038                 btusb_mtk_uhw_reg_write(data, MTK_EP_RST_OPT, MTK_EP_RST_IN_OUT_OPT);
3039                 btusb_mtk_uhw_reg_read(data, MTK_BT_WDT_STATUS, &val);
3040
3041                 /* Reset the bluetooth chip via USB interface. */
3042                 btusb_mtk_uhw_reg_write(data, MTK_BT_SUBSYS_RST, 1);
3043                 btusb_mtk_uhw_reg_write(data, MTK_UDMA_INT_STA_BT, 0x000000FF);
3044                 btusb_mtk_uhw_reg_read(data, MTK_UDMA_INT_STA_BT, &val);
3045                 btusb_mtk_uhw_reg_write(data, MTK_UDMA_INT_STA_BT1, 0x000000FF);
3046                 btusb_mtk_uhw_reg_read(data, MTK_UDMA_INT_STA_BT1, &val);
3047                 /* MT7921 need to delay 20ms between toggle reset bit */
3048                 msleep(20);
3049                 btusb_mtk_uhw_reg_write(data, MTK_BT_SUBSYS_RST, 0);
3050                 btusb_mtk_uhw_reg_read(data, MTK_BT_SUBSYS_RST, &val);
3051         }
3052
3053         err = readx_poll_timeout(btusb_mtk_reset_done, hdev, val,
3054                                  val & MTK_BT_RST_DONE, 20000, 1000000);
3055         if (err < 0)
3056                 bt_dev_err(hdev, "Reset timeout");
3057
3058         btusb_mtk_id_get(data, 0x70010200, &val);
3059         if (!val)
3060                 bt_dev_err(hdev, "Can't get device id, subsys reset fail.");
3061
3062         usb_queue_reset_device(data->intf);
3063
3064         clear_bit(BTUSB_HW_RESET_ACTIVE, &data->flags);
3065
3066         return err;
3067 }
3068
3069 static int btusb_mtk_setup(struct hci_dev *hdev)
3070 {
3071         struct btusb_data *data = hci_get_drvdata(hdev);
3072         struct btmtk_hci_wmt_params wmt_params;
3073         ktime_t calltime, delta, rettime;
3074         struct btmtk_tci_sleep tci_sleep;
3075         unsigned long long duration;
3076         struct sk_buff *skb;
3077         const char *fwname;
3078         int err, status;
3079         u32 dev_id = 0;
3080         char fw_bin_name[64];
3081         u32 fw_version = 0;
3082         u8 param;
3083         struct btmediatek_data *mediatek;
3084
3085         calltime = ktime_get();
3086
3087         err = btusb_mtk_id_get(data, 0x80000008, &dev_id);
3088         if (err < 0) {
3089                 bt_dev_err(hdev, "Failed to get device id (%d)", err);
3090                 return err;
3091         }
3092
3093         if (!dev_id || dev_id != 0x7663) {
3094                 err = btusb_mtk_id_get(data, 0x70010200, &dev_id);
3095                 if (err < 0) {
3096                         bt_dev_err(hdev, "Failed to get device id (%d)", err);
3097                         return err;
3098                 }
3099                 err = btusb_mtk_id_get(data, 0x80021004, &fw_version);
3100                 if (err < 0) {
3101                         bt_dev_err(hdev, "Failed to get fw version (%d)", err);
3102                         return err;
3103                 }
3104         }
3105
3106         mediatek = hci_get_priv(hdev);
3107         mediatek->dev_id = dev_id;
3108         mediatek->reset_sync = btusb_mtk_reset;
3109
3110         err = btmtk_register_coredump(hdev, btusb_driver.name, fw_version);
3111         if (err < 0)
3112                 bt_dev_err(hdev, "Failed to register coredump (%d)", err);
3113
3114         switch (dev_id) {
3115         case 0x7663:
3116                 fwname = FIRMWARE_MT7663;
3117                 break;
3118         case 0x7668:
3119                 fwname = FIRMWARE_MT7668;
3120                 break;
3121         case 0x7922:
3122         case 0x7961:
3123         case 0x7925:
3124                 if (dev_id == 0x7925)
3125                         snprintf(fw_bin_name, sizeof(fw_bin_name),
3126                                  "/*(DEBLOBBED)*/",
3127                                  dev_id & 0xffff, dev_id & 0xffff, (fw_version & 0xff) + 1);
3128                 else
3129                         snprintf(fw_bin_name, sizeof(fw_bin_name),
3130                                  "/*(DEBLOBBED)*/",
3131                                  dev_id & 0xffff, (fw_version & 0xff) + 1);
3132
3133                 err = btmtk_setup_firmware_79xx(hdev, fw_bin_name,
3134                                                 btusb_mtk_hci_wmt_sync);
3135                 if (err < 0) {
3136                         bt_dev_err(hdev, "Failed to set up firmware (%d)", err);
3137                         return err;
3138                 }
3139
3140                 /* It's Device EndPoint Reset Option Register */
3141                 btusb_mtk_uhw_reg_write(data, MTK_EP_RST_OPT, MTK_EP_RST_IN_OUT_OPT);
3142
3143                 /* Enable Bluetooth protocol */
3144                 param = 1;
3145                 wmt_params.op = BTMTK_WMT_FUNC_CTRL;
3146                 wmt_params.flag = 0;
3147                 wmt_params.dlen = sizeof(param);
3148                 wmt_params.data = &param;
3149                 wmt_params.status = NULL;
3150
3151                 err = btusb_mtk_hci_wmt_sync(hdev, &wmt_params);
3152                 if (err < 0) {
3153                         bt_dev_err(hdev, "Failed to send wmt func ctrl (%d)", err);
3154                         return err;
3155                 }
3156
3157                 hci_set_msft_opcode(hdev, 0xFD30);
3158                 hci_set_aosp_capable(hdev);
3159                 goto done;
3160         default:
3161                 bt_dev_err(hdev, "Unsupported hardware variant (%08x)",
3162                            dev_id);
3163                 return -ENODEV;
3164         }
3165
3166         /* Query whether the firmware is already download */
3167         wmt_params.op = BTMTK_WMT_SEMAPHORE;
3168         wmt_params.flag = 1;
3169         wmt_params.dlen = 0;
3170         wmt_params.data = NULL;
3171         wmt_params.status = &status;
3172
3173         err = btusb_mtk_hci_wmt_sync(hdev, &wmt_params);
3174         if (err < 0) {
3175                 bt_dev_err(hdev, "Failed to query firmware status (%d)", err);
3176                 return err;
3177         }
3178
3179         if (status == BTMTK_WMT_PATCH_DONE) {
3180                 bt_dev_info(hdev, "firmware already downloaded");
3181                 goto ignore_setup_fw;
3182         }
3183
3184         /* Setup a firmware which the device definitely requires */
3185         err = btmtk_setup_firmware(hdev, fwname,
3186                                    btusb_mtk_hci_wmt_sync);
3187         if (err < 0)
3188                 return err;
3189
3190 ignore_setup_fw:
3191         err = readx_poll_timeout(btusb_mtk_func_query, hdev, status,
3192                                  status < 0 || status != BTMTK_WMT_ON_PROGRESS,
3193                                  2000, 5000000);
3194         /* -ETIMEDOUT happens */
3195         if (err < 0)
3196                 return err;
3197
3198         /* The other errors happen in btusb_mtk_func_query */
3199         if (status < 0)
3200                 return status;
3201
3202         if (status == BTMTK_WMT_ON_DONE) {
3203                 bt_dev_info(hdev, "function already on");
3204                 goto ignore_func_on;
3205         }
3206
3207         /* Enable Bluetooth protocol */
3208         param = 1;
3209         wmt_params.op = BTMTK_WMT_FUNC_CTRL;
3210         wmt_params.flag = 0;
3211         wmt_params.dlen = sizeof(param);
3212         wmt_params.data = &param;
3213         wmt_params.status = NULL;
3214
3215         err = btusb_mtk_hci_wmt_sync(hdev, &wmt_params);
3216         if (err < 0) {
3217                 bt_dev_err(hdev, "Failed to send wmt func ctrl (%d)", err);
3218                 return err;
3219         }
3220
3221 ignore_func_on:
3222         /* Apply the low power environment setup */
3223         tci_sleep.mode = 0x5;
3224         tci_sleep.duration = cpu_to_le16(0x640);
3225         tci_sleep.host_duration = cpu_to_le16(0x640);
3226         tci_sleep.host_wakeup_pin = 0;
3227         tci_sleep.time_compensation = 0;
3228
3229         skb = __hci_cmd_sync(hdev, 0xfc7a, sizeof(tci_sleep), &tci_sleep,
3230                              HCI_INIT_TIMEOUT);
3231         if (IS_ERR(skb)) {
3232                 err = PTR_ERR(skb);
3233                 bt_dev_err(hdev, "Failed to apply low power setting (%d)", err);
3234                 return err;
3235         }
3236         kfree_skb(skb);
3237
3238 done:
3239         rettime = ktime_get();
3240         delta = ktime_sub(rettime, calltime);
3241         duration = (unsigned long long)ktime_to_ns(delta) >> 10;
3242
3243         bt_dev_info(hdev, "Device setup in %llu usecs", duration);
3244
3245         return 0;
3246 }
3247
3248 static int btusb_mtk_shutdown(struct hci_dev *hdev)
3249 {
3250         struct btmtk_hci_wmt_params wmt_params;
3251         u8 param = 0;
3252         int err;
3253
3254         /* Disable the device */
3255         wmt_params.op = BTMTK_WMT_FUNC_CTRL;
3256         wmt_params.flag = 0;
3257         wmt_params.dlen = sizeof(param);
3258         wmt_params.data = &param;
3259         wmt_params.status = NULL;
3260
3261         err = btusb_mtk_hci_wmt_sync(hdev, &wmt_params);
3262         if (err < 0) {
3263                 bt_dev_err(hdev, "Failed to send wmt func ctrl (%d)", err);
3264                 return err;
3265         }
3266
3267         return 0;
3268 }
3269
3270 static int btusb_recv_acl_mtk(struct hci_dev *hdev, struct sk_buff *skb)
3271 {
3272         struct btusb_data *data = hci_get_drvdata(hdev);
3273         u16 handle = le16_to_cpu(hci_acl_hdr(skb)->handle);
3274         struct sk_buff *skb_cd;
3275
3276         switch (handle) {
3277         case 0xfc6f:            /* Firmware dump from device */
3278                 /* When the firmware hangs, the device can no longer
3279                  * suspend and thus disable auto-suspend.
3280                  */
3281                 usb_disable_autosuspend(data->udev);
3282
3283                 /* We need to forward the diagnostic packet to userspace daemon
3284                  * for backward compatibility, so we have to clone the packet
3285                  * extraly for the in-kernel coredump support.
3286                  */
3287                 skb_cd = skb_clone(skb, GFP_ATOMIC);
3288                 if (skb_cd)
3289                         btmtk_process_coredump(hdev, skb_cd);
3290
3291                 fallthrough;
3292         case 0x05ff:            /* Firmware debug logging 1 */
3293         case 0x05fe:            /* Firmware debug logging 2 */
3294                 return hci_recv_diag(hdev, skb);
3295         }
3296
3297         return hci_recv_frame(hdev, skb);
3298 }
3299
3300 #ifdef CONFIG_PM
3301 /* Configure an out-of-band gpio as wake-up pin, if specified in device tree */
3302 static int marvell_config_oob_wake(struct hci_dev *hdev)
3303 {
3304         struct sk_buff *skb;
3305         struct btusb_data *data = hci_get_drvdata(hdev);
3306         struct device *dev = &data->udev->dev;
3307         u16 pin, gap, opcode;
3308         int ret;
3309         u8 cmd[5];
3310
3311         /* Move on if no wakeup pin specified */
3312         if (of_property_read_u16(dev->of_node, "marvell,wakeup-pin", &pin) ||
3313             of_property_read_u16(dev->of_node, "marvell,wakeup-gap-ms", &gap))
3314                 return 0;
3315
3316         /* Vendor specific command to configure a GPIO as wake-up pin */
3317         opcode = hci_opcode_pack(0x3F, 0x59);
3318         cmd[0] = opcode & 0xFF;
3319         cmd[1] = opcode >> 8;
3320         cmd[2] = 2; /* length of parameters that follow */
3321         cmd[3] = pin;
3322         cmd[4] = gap; /* time in ms, for which wakeup pin should be asserted */
3323
3324         skb = bt_skb_alloc(sizeof(cmd), GFP_KERNEL);
3325         if (!skb) {
3326                 bt_dev_err(hdev, "%s: No memory", __func__);
3327                 return -ENOMEM;
3328         }
3329
3330         skb_put_data(skb, cmd, sizeof(cmd));
3331         hci_skb_pkt_type(skb) = HCI_COMMAND_PKT;
3332
3333         ret = btusb_send_frame(hdev, skb);
3334         if (ret) {
3335                 bt_dev_err(hdev, "%s: configuration failed", __func__);
3336                 kfree_skb(skb);
3337                 return ret;
3338         }
3339
3340         return 0;
3341 }
3342 #endif
3343
3344 static int btusb_set_bdaddr_marvell(struct hci_dev *hdev,
3345                                     const bdaddr_t *bdaddr)
3346 {
3347         struct sk_buff *skb;
3348         u8 buf[8];
3349         long ret;
3350
3351         buf[0] = 0xfe;
3352         buf[1] = sizeof(bdaddr_t);
3353         memcpy(buf + 2, bdaddr, sizeof(bdaddr_t));
3354
3355         skb = __hci_cmd_sync(hdev, 0xfc22, sizeof(buf), buf, HCI_INIT_TIMEOUT);
3356         if (IS_ERR(skb)) {
3357                 ret = PTR_ERR(skb);
3358                 bt_dev_err(hdev, "changing Marvell device address failed (%ld)",
3359                            ret);
3360                 return ret;
3361         }
3362         kfree_skb(skb);
3363
3364         return 0;
3365 }
3366
3367 static int btusb_set_bdaddr_ath3012(struct hci_dev *hdev,
3368                                     const bdaddr_t *bdaddr)
3369 {
3370         struct sk_buff *skb;
3371         u8 buf[10];
3372         long ret;
3373
3374         buf[0] = 0x01;
3375         buf[1] = 0x01;
3376         buf[2] = 0x00;
3377         buf[3] = sizeof(bdaddr_t);
3378         memcpy(buf + 4, bdaddr, sizeof(bdaddr_t));
3379
3380         skb = __hci_cmd_sync(hdev, 0xfc0b, sizeof(buf), buf, HCI_INIT_TIMEOUT);
3381         if (IS_ERR(skb)) {
3382                 ret = PTR_ERR(skb);
3383                 bt_dev_err(hdev, "Change address command failed (%ld)", ret);
3384                 return ret;
3385         }
3386         kfree_skb(skb);
3387
3388         return 0;
3389 }
3390
3391 static int btusb_set_bdaddr_wcn6855(struct hci_dev *hdev,
3392                                 const bdaddr_t *bdaddr)
3393 {
3394         struct sk_buff *skb;
3395         u8 buf[6];
3396         long ret;
3397
3398         memcpy(buf, bdaddr, sizeof(bdaddr_t));
3399
3400         skb = __hci_cmd_sync_ev(hdev, 0xfc14, sizeof(buf), buf,
3401                                 HCI_EV_CMD_COMPLETE, HCI_INIT_TIMEOUT);
3402         if (IS_ERR(skb)) {
3403                 ret = PTR_ERR(skb);
3404                 bt_dev_err(hdev, "Change address command failed (%ld)", ret);
3405                 return ret;
3406         }
3407         kfree_skb(skb);
3408
3409         return 0;
3410 }
3411
3412 #define QCA_MEMDUMP_ACL_HANDLE 0x2EDD
3413 #define QCA_MEMDUMP_SIZE_MAX  0x100000
3414 #define QCA_MEMDUMP_VSE_CLASS 0x01
3415 #define QCA_MEMDUMP_MSG_TYPE 0x08
3416 #define QCA_MEMDUMP_PKT_SIZE 248
3417 #define QCA_LAST_SEQUENCE_NUM 0xffff
3418
3419 struct qca_dump_hdr {
3420         u8 vse_class;
3421         u8 msg_type;
3422         __le16 seqno;
3423         u8 reserved;
3424         union {
3425                 u8 data[0];
3426                 struct {
3427                         __le32 ram_dump_size;
3428                         u8 data0[0];
3429                 } __packed;
3430         };
3431 } __packed;
3432
3433
3434 static void btusb_dump_hdr_qca(struct hci_dev *hdev, struct sk_buff *skb)
3435 {
3436         char buf[128];
3437         struct btusb_data *btdata = hci_get_drvdata(hdev);
3438
3439         snprintf(buf, sizeof(buf), "Controller Name: 0x%x\n",
3440                         btdata->qca_dump.controller_id);
3441         skb_put_data(skb, buf, strlen(buf));
3442
3443         snprintf(buf, sizeof(buf), "Firmware Version: 0x%x\n",
3444                         btdata->qca_dump.fw_version);
3445         skb_put_data(skb, buf, strlen(buf));
3446
3447         snprintf(buf, sizeof(buf), "Driver: %s\nVendor: qca\n",
3448                         btusb_driver.name);
3449         skb_put_data(skb, buf, strlen(buf));
3450
3451         snprintf(buf, sizeof(buf), "VID: 0x%x\nPID:0x%x\n",
3452                         btdata->qca_dump.id_vendor, btdata->qca_dump.id_product);
3453         skb_put_data(skb, buf, strlen(buf));
3454
3455         snprintf(buf, sizeof(buf), "Lmp Subversion: 0x%x\n",
3456                         hdev->lmp_subver);
3457         skb_put_data(skb, buf, strlen(buf));
3458 }
3459
3460 static void btusb_coredump_qca(struct hci_dev *hdev)
3461 {
3462         static const u8 param[] = { 0x26 };
3463         struct sk_buff *skb;
3464
3465         skb = __hci_cmd_sync(hdev, 0xfc0c, 1, param, HCI_CMD_TIMEOUT);
3466         if (IS_ERR(skb))
3467                 bt_dev_err(hdev, "%s: triggle crash failed (%ld)", __func__, PTR_ERR(skb));
3468         kfree_skb(skb);
3469 }
3470
3471 /*
3472  * ==0: not a dump pkt.
3473  * < 0: fails to handle a dump pkt
3474  * > 0: otherwise.
3475  */
3476 static int handle_dump_pkt_qca(struct hci_dev *hdev, struct sk_buff *skb)
3477 {
3478         int ret = 1;
3479         u8 pkt_type;
3480         u8 *sk_ptr;
3481         unsigned int sk_len;
3482         u16 seqno;
3483         u32 dump_size;
3484
3485         struct hci_event_hdr *event_hdr;
3486         struct hci_acl_hdr *acl_hdr;
3487         struct qca_dump_hdr *dump_hdr;
3488         struct btusb_data *btdata = hci_get_drvdata(hdev);
3489         struct usb_device *udev = btdata->udev;
3490
3491         pkt_type = hci_skb_pkt_type(skb);
3492         sk_ptr = skb->data;
3493         sk_len = skb->len;
3494
3495         if (pkt_type == HCI_ACLDATA_PKT) {
3496                 acl_hdr = hci_acl_hdr(skb);
3497                 if (le16_to_cpu(acl_hdr->handle) != QCA_MEMDUMP_ACL_HANDLE)
3498                         return 0;
3499                 sk_ptr += HCI_ACL_HDR_SIZE;
3500                 sk_len -= HCI_ACL_HDR_SIZE;
3501                 event_hdr = (struct hci_event_hdr *)sk_ptr;
3502         } else {
3503                 event_hdr = hci_event_hdr(skb);
3504         }
3505
3506         if ((event_hdr->evt != HCI_VENDOR_PKT)
3507                 || (event_hdr->plen != (sk_len - HCI_EVENT_HDR_SIZE)))
3508                 return 0;
3509
3510         sk_ptr += HCI_EVENT_HDR_SIZE;
3511         sk_len -= HCI_EVENT_HDR_SIZE;
3512
3513         dump_hdr = (struct qca_dump_hdr *)sk_ptr;
3514         if ((sk_len < offsetof(struct qca_dump_hdr, data))
3515                 || (dump_hdr->vse_class != QCA_MEMDUMP_VSE_CLASS)
3516             || (dump_hdr->msg_type != QCA_MEMDUMP_MSG_TYPE))
3517                 return 0;
3518
3519         /*it is dump pkt now*/
3520         seqno = le16_to_cpu(dump_hdr->seqno);
3521         if (seqno == 0) {
3522                 set_bit(BTUSB_HW_SSR_ACTIVE, &btdata->flags);
3523                 dump_size = le32_to_cpu(dump_hdr->ram_dump_size);
3524                 if (!dump_size || (dump_size > QCA_MEMDUMP_SIZE_MAX)) {
3525                         ret = -EILSEQ;
3526                         bt_dev_err(hdev, "Invalid memdump size(%u)",
3527                                    dump_size);
3528                         goto out;
3529                 }
3530
3531                 ret = hci_devcd_init(hdev, dump_size);
3532                 if (ret < 0) {
3533                         bt_dev_err(hdev, "memdump init error(%d)", ret);
3534                         goto out;
3535                 }
3536
3537                 btdata->qca_dump.ram_dump_size = dump_size;
3538                 btdata->qca_dump.ram_dump_seqno = 0;
3539                 sk_ptr += offsetof(struct qca_dump_hdr, data0);
3540                 sk_len -= offsetof(struct qca_dump_hdr, data0);
3541
3542                 usb_disable_autosuspend(udev);
3543                 bt_dev_info(hdev, "%s memdump size(%u)\n",
3544                             (pkt_type == HCI_ACLDATA_PKT) ? "ACL" : "event",
3545                             dump_size);
3546         } else {
3547                 sk_ptr += offsetof(struct qca_dump_hdr, data);
3548                 sk_len -= offsetof(struct qca_dump_hdr, data);
3549         }
3550
3551         if (!btdata->qca_dump.ram_dump_size) {
3552                 ret = -EINVAL;
3553                 bt_dev_err(hdev, "memdump is not active");
3554                 goto out;
3555         }
3556
3557         if ((seqno > btdata->qca_dump.ram_dump_seqno + 1) && (seqno != QCA_LAST_SEQUENCE_NUM)) {
3558                 dump_size = QCA_MEMDUMP_PKT_SIZE * (seqno - btdata->qca_dump.ram_dump_seqno - 1);
3559                 hci_devcd_append_pattern(hdev, 0x0, dump_size);
3560                 bt_dev_err(hdev,
3561                            "expected memdump seqno(%u) is not received(%u)\n",
3562                            btdata->qca_dump.ram_dump_seqno, seqno);
3563                 btdata->qca_dump.ram_dump_seqno = seqno;
3564                 kfree_skb(skb);
3565                 return ret;
3566         }
3567
3568         skb_pull(skb, skb->len - sk_len);
3569         hci_devcd_append(hdev, skb);
3570         btdata->qca_dump.ram_dump_seqno++;
3571         if (seqno == QCA_LAST_SEQUENCE_NUM) {
3572                 bt_dev_info(hdev,
3573                                 "memdump done: pkts(%u), total(%u)\n",
3574                                 btdata->qca_dump.ram_dump_seqno, btdata->qca_dump.ram_dump_size);
3575
3576                 hci_devcd_complete(hdev);
3577                 goto out;
3578         }
3579         return ret;
3580
3581 out:
3582         if (btdata->qca_dump.ram_dump_size)
3583                 usb_enable_autosuspend(udev);
3584         btdata->qca_dump.ram_dump_size = 0;
3585         btdata->qca_dump.ram_dump_seqno = 0;
3586         clear_bit(BTUSB_HW_SSR_ACTIVE, &btdata->flags);
3587
3588         if (ret < 0)
3589                 kfree_skb(skb);
3590         return ret;
3591 }
3592
3593 static int btusb_recv_acl_qca(struct hci_dev *hdev, struct sk_buff *skb)
3594 {
3595         if (handle_dump_pkt_qca(hdev, skb))
3596                 return 0;
3597         return hci_recv_frame(hdev, skb);
3598 }
3599
3600 static int btusb_recv_evt_qca(struct hci_dev *hdev, struct sk_buff *skb)
3601 {
3602         if (handle_dump_pkt_qca(hdev, skb))
3603                 return 0;
3604         return hci_recv_frame(hdev, skb);
3605 }
3606
3607
3608 #define QCA_DFU_PACKET_LEN      4096
3609
3610 #define QCA_GET_TARGET_VERSION  0x09
3611 #define QCA_CHECK_STATUS        0x05
3612 #define QCA_DFU_DOWNLOAD        0x01
3613
3614 #define QCA_SYSCFG_UPDATED      0x40
3615 #define QCA_PATCH_UPDATED       0x80
3616 #define QCA_DFU_TIMEOUT         3000
3617 #define QCA_FLAG_MULTI_NVM      0x80
3618 #define QCA_BT_RESET_WAIT_MS    100
3619
3620 #define WCN6855_2_0_RAM_VERSION_GF 0x400c1200
3621 #define WCN6855_2_1_RAM_VERSION_GF 0x400c1211
3622
3623 struct qca_version {
3624         __le32  rom_version;
3625         __le32  patch_version;
3626         __le32  ram_version;
3627         __u8    chip_id;
3628         __u8    platform_id;
3629         __le16  flag;
3630         __u8    reserved[4];
3631 } __packed;
3632
3633 struct qca_rampatch_version {
3634         __le16  rom_version_high;
3635         __le16  rom_version_low;
3636         __le16  patch_version;
3637 } __packed;
3638
3639 struct qca_device_info {
3640         u32     rom_version;
3641         u8      rampatch_hdr;   /* length of header in rampatch */
3642         u8      nvm_hdr;        /* length of header in NVM */
3643         u8      ver_offset;     /* offset of version structure in rampatch */
3644 };
3645
3646 static const struct qca_device_info qca_devices_table[] = {
3647         { 0x00000100, 20, 4,  8 }, /* Rome 1.0 */
3648         { 0x00000101, 20, 4,  8 }, /* Rome 1.1 */
3649         { 0x00000200, 28, 4, 16 }, /* Rome 2.0 */
3650         { 0x00000201, 28, 4, 16 }, /* Rome 2.1 */
3651         { 0x00000300, 28, 4, 16 }, /* Rome 3.0 */
3652         { 0x00000302, 28, 4, 16 }, /* Rome 3.2 */
3653         { 0x00130100, 40, 4, 16 }, /* WCN6855 1.0 */
3654         { 0x00130200, 40, 4, 16 }, /* WCN6855 2.0 */
3655         { 0x00130201, 40, 4, 16 }, /* WCN6855 2.1 */
3656         { 0x00190200, 40, 4, 16 }, /* WCN785x 2.0 */
3657 };
3658
3659 static int btusb_qca_send_vendor_req(struct usb_device *udev, u8 request,
3660                                      void *data, u16 size)
3661 {
3662         int pipe, err;
3663         u8 *buf;
3664
3665         buf = kmalloc(size, GFP_KERNEL);
3666         if (!buf)
3667                 return -ENOMEM;
3668
3669         /* Found some of USB hosts have IOT issues with ours so that we should
3670          * not wait until HCI layer is ready.
3671          */
3672         pipe = usb_rcvctrlpipe(udev, 0);
3673         err = usb_control_msg(udev, pipe, request, USB_TYPE_VENDOR | USB_DIR_IN,
3674                               0, 0, buf, size, USB_CTRL_SET_TIMEOUT);
3675         if (err < 0) {
3676                 dev_err(&udev->dev, "Failed to access otp area (%d)", err);
3677                 goto done;
3678         }
3679
3680         memcpy(data, buf, size);
3681
3682 done:
3683         kfree(buf);
3684
3685         return err;
3686 }
3687
3688 static int btusb_setup_qca_download_fw(struct hci_dev *hdev,
3689                                        const struct firmware *firmware,
3690                                        size_t hdr_size)
3691 {
3692         struct btusb_data *btdata = hci_get_drvdata(hdev);
3693         struct usb_device *udev = btdata->udev;
3694         size_t count, size, sent = 0;
3695         int pipe, len, err;
3696         u8 *buf;
3697
3698         buf = kmalloc(QCA_DFU_PACKET_LEN, GFP_KERNEL);
3699         if (!buf)
3700                 return -ENOMEM;
3701
3702         count = firmware->size;
3703
3704         size = min_t(size_t, count, hdr_size);
3705         memcpy(buf, firmware->data, size);
3706
3707         /* USB patches should go down to controller through USB path
3708          * because binary format fits to go down through USB channel.
3709          * USB control path is for patching headers and USB bulk is for
3710          * patch body.
3711          */
3712         pipe = usb_sndctrlpipe(udev, 0);
3713         err = usb_control_msg(udev, pipe, QCA_DFU_DOWNLOAD, USB_TYPE_VENDOR,
3714                               0, 0, buf, size, USB_CTRL_SET_TIMEOUT);
3715         if (err < 0) {
3716                 bt_dev_err(hdev, "Failed to send headers (%d)", err);
3717                 goto done;
3718         }
3719
3720         sent += size;
3721         count -= size;
3722
3723         /* ep2 need time to switch from function acl to function dfu,
3724          * so we add 20ms delay here.
3725          */
3726         msleep(20);
3727
3728         while (count) {
3729                 size = min_t(size_t, count, QCA_DFU_PACKET_LEN);
3730
3731                 memcpy(buf, firmware->data + sent, size);
3732
3733                 pipe = usb_sndbulkpipe(udev, 0x02);
3734                 err = usb_bulk_msg(udev, pipe, buf, size, &len,
3735                                    QCA_DFU_TIMEOUT);
3736                 if (err < 0) {
3737                         bt_dev_err(hdev, "Failed to send body at %zd of %zd (%d)",
3738                                    sent, firmware->size, err);
3739                         break;
3740                 }
3741
3742                 if (size != len) {
3743                         bt_dev_err(hdev, "Failed to get bulk buffer");
3744                         err = -EILSEQ;
3745                         break;
3746                 }
3747
3748                 sent  += size;
3749                 count -= size;
3750         }
3751
3752 done:
3753         kfree(buf);
3754         return err;
3755 }
3756
3757 static int btusb_setup_qca_load_rampatch(struct hci_dev *hdev,
3758                                          struct qca_version *ver,
3759                                          const struct qca_device_info *info)
3760 {
3761         struct qca_rampatch_version *rver;
3762         const struct firmware *fw;
3763         u32 ver_rom, ver_patch, rver_rom;
3764         u16 rver_rom_low, rver_rom_high, rver_patch;
3765         char fwname[64];
3766         int err;
3767
3768         ver_rom = le32_to_cpu(ver->rom_version);
3769         ver_patch = le32_to_cpu(ver->patch_version);
3770
3771         snprintf(fwname, sizeof(fwname), "/*(DEBLOBBED)*/", ver_rom);
3772
3773         err = reject_firmware(&fw, fwname, &hdev->dev);
3774         if (err) {
3775                 bt_dev_err(hdev, "failed to request rampatch file: %s (%d)",
3776                            fwname, err);
3777                 return err;
3778         }
3779
3780         bt_dev_info(hdev, "using rampatch file: %s", fwname);
3781
3782         rver = (struct qca_rampatch_version *)(fw->data + info->ver_offset);
3783         rver_rom_low = le16_to_cpu(rver->rom_version_low);
3784         rver_patch = le16_to_cpu(rver->patch_version);
3785
3786         if (ver_rom & ~0xffffU) {
3787                 rver_rom_high = le16_to_cpu(rver->rom_version_high);
3788                 rver_rom = rver_rom_high << 16 | rver_rom_low;
3789         } else {
3790                 rver_rom = rver_rom_low;
3791         }
3792
3793         bt_dev_info(hdev, "QCA: patch rome 0x%x build 0x%x, "
3794                     "firmware rome 0x%x build 0x%x",
3795                     rver_rom, rver_patch, ver_rom, ver_patch);
3796
3797         if (rver_rom != ver_rom || rver_patch <= ver_patch) {
3798                 bt_dev_err(hdev, "rampatch file version did not match with firmware");
3799                 err = -EINVAL;
3800                 goto done;
3801         }
3802
3803         err = btusb_setup_qca_download_fw(hdev, fw, info->rampatch_hdr);
3804
3805 done:
3806         release_firmware(fw);
3807
3808         return err;
3809 }
3810
3811 static void btusb_generate_qca_nvm_name(char *fwname, size_t max_size,
3812                                         const struct qca_version *ver)
3813 {
3814         u32 rom_version = le32_to_cpu(ver->rom_version);
3815         u16 flag = le16_to_cpu(ver->flag);
3816
3817         if (((flag >> 8) & 0xff) == QCA_FLAG_MULTI_NVM) {
3818                 /* The board_id should be split into two bytes
3819                  * The 1st byte is chip ID, and the 2nd byte is platform ID
3820                  * For example, board ID 0x010A, 0x01 is platform ID. 0x0A is chip ID
3821                  * we have several platforms, and platform IDs are continuously added
3822                  * Platform ID:
3823                  * 0x00 is for Mobile
3824                  * 0x01 is for X86
3825                  * 0x02 is for Automotive
3826                  * 0x03 is for Consumer electronic
3827                  */
3828                 u16 board_id = (ver->chip_id << 8) + ver->platform_id;
3829                 const char *variant;
3830
3831                 switch (le32_to_cpu(ver->ram_version)) {
3832                 case WCN6855_2_0_RAM_VERSION_GF:
3833                 case WCN6855_2_1_RAM_VERSION_GF:
3834                         variant = "_gf";
3835                         break;
3836                 default:
3837                         variant = "";
3838                         break;
3839                 }
3840
3841                 if (board_id == 0) {
3842                         snprintf(fwname, max_size, "/*(DEBLOBBED)*/",
3843                                 rom_version, variant);
3844                 } else {
3845                         snprintf(fwname, max_size, "/*(DEBLOBBED)*/",
3846                                 rom_version, variant, board_id);
3847                 }
3848         } else {
3849                 snprintf(fwname, max_size, "/*(DEBLOBBED)*/",
3850                         rom_version);
3851         }
3852
3853 }
3854
3855 static int btusb_setup_qca_load_nvm(struct hci_dev *hdev,
3856                                     struct qca_version *ver,
3857                                     const struct qca_device_info *info)
3858 {
3859         const struct firmware *fw;
3860         char fwname[64];
3861         int err;
3862
3863         btusb_generate_qca_nvm_name(fwname, sizeof(fwname), ver);
3864
3865         err = reject_firmware(&fw, fwname, &hdev->dev);
3866         if (err) {
3867                 bt_dev_err(hdev, "failed to request NVM file: %s (%d)",
3868                            fwname, err);
3869                 return err;
3870         }
3871
3872         bt_dev_info(hdev, "using NVM file: %s", fwname);
3873
3874         err = btusb_setup_qca_download_fw(hdev, fw, info->nvm_hdr);
3875
3876         release_firmware(fw);
3877
3878         return err;
3879 }
3880
3881 /* identify the ROM version and check whether patches are needed */
3882 static bool btusb_qca_need_patch(struct usb_device *udev)
3883 {
3884         struct qca_version ver;
3885
3886         if (btusb_qca_send_vendor_req(udev, QCA_GET_TARGET_VERSION, &ver,
3887                                       sizeof(ver)) < 0)
3888                 return false;
3889         /* only low ROM versions need patches */
3890         return !(le32_to_cpu(ver.rom_version) & ~0xffffU);
3891 }
3892
3893 static int btusb_setup_qca(struct hci_dev *hdev)
3894 {
3895         struct btusb_data *btdata = hci_get_drvdata(hdev);
3896         struct usb_device *udev = btdata->udev;
3897         const struct qca_device_info *info = NULL;
3898         struct qca_version ver;
3899         u32 ver_rom;
3900         u8 status;
3901         int i, err;
3902
3903         err = btusb_qca_send_vendor_req(udev, QCA_GET_TARGET_VERSION, &ver,
3904                                         sizeof(ver));
3905         if (err < 0)
3906                 return err;
3907
3908         ver_rom = le32_to_cpu(ver.rom_version);
3909
3910         for (i = 0; i < ARRAY_SIZE(qca_devices_table); i++) {
3911                 if (ver_rom == qca_devices_table[i].rom_version)
3912                         info = &qca_devices_table[i];
3913         }
3914         if (!info) {
3915                 /* If the rom_version is not matched in the qca_devices_table
3916                  * and the high ROM version is not zero, we assume this chip no
3917                  * need to load the rampatch and nvm.
3918                  */
3919                 if (ver_rom & ~0xffffU)
3920                         return 0;
3921
3922                 bt_dev_err(hdev, "don't support firmware rome 0x%x", ver_rom);
3923                 return -ENODEV;
3924         }
3925
3926         err = btusb_qca_send_vendor_req(udev, QCA_CHECK_STATUS, &status,
3927                                         sizeof(status));
3928         if (err < 0)
3929                 return err;
3930
3931         if (!(status & QCA_PATCH_UPDATED)) {
3932                 err = btusb_setup_qca_load_rampatch(hdev, &ver, info);
3933                 if (err < 0)
3934                         return err;
3935         }
3936
3937         err = btusb_qca_send_vendor_req(udev, QCA_GET_TARGET_VERSION, &ver,
3938                                         sizeof(ver));
3939         if (err < 0)
3940                 return err;
3941
3942         btdata->qca_dump.fw_version = le32_to_cpu(ver.patch_version);
3943         btdata->qca_dump.controller_id = le32_to_cpu(ver.rom_version);
3944
3945         if (!(status & QCA_SYSCFG_UPDATED)) {
3946                 err = btusb_setup_qca_load_nvm(hdev, &ver, info);
3947                 if (err < 0)
3948                         return err;
3949
3950                 /* WCN6855 2.1 and later will reset to apply firmware downloaded here, so
3951                  * wait ~100ms for reset Done then go ahead, otherwise, it maybe
3952                  * cause potential enable failure.
3953                  */
3954                 if (info->rom_version >= 0x00130201)
3955                         msleep(QCA_BT_RESET_WAIT_MS);
3956         }
3957
3958         /* Mark HCI_OP_ENHANCED_SETUP_SYNC_CONN as broken as it doesn't seem to
3959          * work with the likes of HSP/HFP mSBC.
3960          */
3961         set_bit(HCI_QUIRK_BROKEN_ENHANCED_SETUP_SYNC_CONN, &hdev->quirks);
3962
3963         return 0;
3964 }
3965
3966 static inline int __set_diag_interface(struct hci_dev *hdev)
3967 {
3968         struct btusb_data *data = hci_get_drvdata(hdev);
3969         struct usb_interface *intf = data->diag;
3970         int i;
3971
3972         if (!data->diag)
3973                 return -ENODEV;
3974
3975         data->diag_tx_ep = NULL;
3976         data->diag_rx_ep = NULL;
3977
3978         for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
3979                 struct usb_endpoint_descriptor *ep_desc;
3980
3981                 ep_desc = &intf->cur_altsetting->endpoint[i].desc;
3982
3983                 if (!data->diag_tx_ep && usb_endpoint_is_bulk_out(ep_desc)) {
3984                         data->diag_tx_ep = ep_desc;
3985                         continue;
3986                 }
3987
3988                 if (!data->diag_rx_ep && usb_endpoint_is_bulk_in(ep_desc)) {
3989                         data->diag_rx_ep = ep_desc;
3990                         continue;
3991                 }
3992         }
3993
3994         if (!data->diag_tx_ep || !data->diag_rx_ep) {
3995                 bt_dev_err(hdev, "invalid diagnostic descriptors");
3996                 return -ENODEV;
3997         }
3998
3999         return 0;
4000 }
4001
4002 static struct urb *alloc_diag_urb(struct hci_dev *hdev, bool enable)
4003 {
4004         struct btusb_data *data = hci_get_drvdata(hdev);
4005         struct sk_buff *skb;
4006         struct urb *urb;
4007         unsigned int pipe;
4008
4009         if (!data->diag_tx_ep)
4010                 return ERR_PTR(-ENODEV);
4011
4012         urb = usb_alloc_urb(0, GFP_KERNEL);
4013         if (!urb)
4014                 return ERR_PTR(-ENOMEM);
4015
4016         skb = bt_skb_alloc(2, GFP_KERNEL);
4017         if (!skb) {
4018                 usb_free_urb(urb);
4019                 return ERR_PTR(-ENOMEM);
4020         }
4021
4022         skb_put_u8(skb, 0xf0);
4023         skb_put_u8(skb, enable);
4024
4025         pipe = usb_sndbulkpipe(data->udev, data->diag_tx_ep->bEndpointAddress);
4026
4027         usb_fill_bulk_urb(urb, data->udev, pipe,
4028                           skb->data, skb->len, btusb_tx_complete, skb);
4029
4030         skb->dev = (void *)hdev;
4031
4032         return urb;
4033 }
4034
4035 static int btusb_bcm_set_diag(struct hci_dev *hdev, bool enable)
4036 {
4037         struct btusb_data *data = hci_get_drvdata(hdev);
4038         struct urb *urb;
4039
4040         if (!data->diag)
4041                 return -ENODEV;
4042
4043         if (!test_bit(HCI_RUNNING, &hdev->flags))
4044                 return -ENETDOWN;
4045
4046         urb = alloc_diag_urb(hdev, enable);
4047         if (IS_ERR(urb))
4048                 return PTR_ERR(urb);
4049
4050         return submit_or_queue_tx_urb(hdev, urb);
4051 }
4052
4053 #ifdef CONFIG_PM
4054 static irqreturn_t btusb_oob_wake_handler(int irq, void *priv)
4055 {
4056         struct btusb_data *data = priv;
4057
4058         pm_wakeup_event(&data->udev->dev, 0);
4059         pm_system_wakeup();
4060
4061         /* Disable only if not already disabled (keep it balanced) */
4062         if (test_and_clear_bit(BTUSB_OOB_WAKE_ENABLED, &data->flags)) {
4063                 disable_irq_nosync(irq);
4064                 disable_irq_wake(irq);
4065         }
4066         return IRQ_HANDLED;
4067 }
4068
4069 static const struct of_device_id btusb_match_table[] = {
4070         { .compatible = "usb1286,204e" },
4071         { .compatible = "usbcf3,e300" }, /* QCA6174A */
4072         { .compatible = "usb4ca,301a" }, /* QCA6174A (Lite-On) */
4073         { }
4074 };
4075 MODULE_DEVICE_TABLE(of, btusb_match_table);
4076
4077 /* Use an oob wakeup pin? */
4078 static int btusb_config_oob_wake(struct hci_dev *hdev)
4079 {
4080         struct btusb_data *data = hci_get_drvdata(hdev);
4081         struct device *dev = &data->udev->dev;
4082         int irq, ret;
4083
4084         clear_bit(BTUSB_OOB_WAKE_ENABLED, &data->flags);
4085
4086         if (!of_match_device(btusb_match_table, dev))
4087                 return 0;
4088
4089         /* Move on if no IRQ specified */
4090         irq = of_irq_get_byname(dev->of_node, "wakeup");
4091         if (irq <= 0) {
4092                 bt_dev_dbg(hdev, "%s: no OOB Wakeup IRQ in DT", __func__);
4093                 return 0;
4094         }
4095
4096         irq_set_status_flags(irq, IRQ_NOAUTOEN);
4097         ret = devm_request_irq(&hdev->dev, irq, btusb_oob_wake_handler,
4098                                0, "OOB Wake-on-BT", data);
4099         if (ret) {
4100                 bt_dev_err(hdev, "%s: IRQ request failed", __func__);
4101                 return ret;
4102         }
4103
4104         ret = device_init_wakeup(dev, true);
4105         if (ret) {
4106                 bt_dev_err(hdev, "%s: failed to init_wakeup", __func__);
4107                 return ret;
4108         }
4109
4110         data->oob_wake_irq = irq;
4111         bt_dev_info(hdev, "OOB Wake-on-BT configured at IRQ %u", irq);
4112         return 0;
4113 }
4114 #endif
4115
4116 static void btusb_check_needs_reset_resume(struct usb_interface *intf)
4117 {
4118         if (dmi_check_system(btusb_needs_reset_resume_table))
4119                 interface_to_usbdev(intf)->quirks |= USB_QUIRK_RESET_RESUME;
4120 }
4121
4122 static bool btusb_wakeup(struct hci_dev *hdev)
4123 {
4124         struct btusb_data *data = hci_get_drvdata(hdev);
4125
4126         return device_may_wakeup(&data->udev->dev);
4127 }
4128
4129 static int btusb_shutdown_qca(struct hci_dev *hdev)
4130 {
4131         struct sk_buff *skb;
4132
4133         skb = __hci_cmd_sync(hdev, HCI_OP_RESET, 0, NULL, HCI_INIT_TIMEOUT);
4134         if (IS_ERR(skb)) {
4135                 bt_dev_err(hdev, "HCI reset during shutdown failed");
4136                 return PTR_ERR(skb);
4137         }
4138         kfree_skb(skb);
4139
4140         return 0;
4141 }
4142
4143 static ssize_t force_poll_sync_read(struct file *file, char __user *user_buf,
4144                                     size_t count, loff_t *ppos)
4145 {
4146         struct btusb_data *data = file->private_data;
4147         char buf[3];
4148
4149         buf[0] = data->poll_sync ? 'Y' : 'N';
4150         buf[1] = '\n';
4151         buf[2] = '\0';
4152         return simple_read_from_buffer(user_buf, count, ppos, buf, 2);
4153 }
4154
4155 static ssize_t force_poll_sync_write(struct file *file,
4156                                      const char __user *user_buf,
4157                                      size_t count, loff_t *ppos)
4158 {
4159         struct btusb_data *data = file->private_data;
4160         bool enable;
4161         int err;
4162
4163         err = kstrtobool_from_user(user_buf, count, &enable);
4164         if (err)
4165                 return err;
4166
4167         /* Only allow changes while the adapter is down */
4168         if (test_bit(HCI_UP, &data->hdev->flags))
4169                 return -EPERM;
4170
4171         if (data->poll_sync == enable)
4172                 return -EALREADY;
4173
4174         data->poll_sync = enable;
4175
4176         return count;
4177 }
4178
4179 static const struct file_operations force_poll_sync_fops = {
4180         .open           = simple_open,
4181         .read           = force_poll_sync_read,
4182         .write          = force_poll_sync_write,
4183         .llseek         = default_llseek,
4184 };
4185
4186 static int btusb_probe(struct usb_interface *intf,
4187                        const struct usb_device_id *id)
4188 {
4189         struct usb_endpoint_descriptor *ep_desc;
4190         struct gpio_desc *reset_gpio;
4191         struct btusb_data *data;
4192         struct hci_dev *hdev;
4193         unsigned ifnum_base;
4194         int i, err, priv_size;
4195
4196         BT_DBG("intf %p id %p", intf, id);
4197
4198         if ((id->driver_info & BTUSB_IFNUM_2) &&
4199             (intf->cur_altsetting->desc.bInterfaceNumber != 0) &&
4200             (intf->cur_altsetting->desc.bInterfaceNumber != 2))
4201                 return -ENODEV;
4202
4203         ifnum_base = intf->cur_altsetting->desc.bInterfaceNumber;
4204
4205         if (!id->driver_info) {
4206                 const struct usb_device_id *match;
4207
4208                 match = usb_match_id(intf, quirks_table);
4209                 if (match)
4210                         id = match;
4211         }
4212
4213         if (id->driver_info == BTUSB_IGNORE)
4214                 return -ENODEV;
4215
4216         if (id->driver_info & BTUSB_ATH3012) {
4217                 struct usb_device *udev = interface_to_usbdev(intf);
4218
4219                 /* Old firmware would otherwise let ath3k driver load
4220                  * patch and sysconfig files
4221                  */
4222                 if (le16_to_cpu(udev->descriptor.bcdDevice) <= 0x0001 &&
4223                     !btusb_qca_need_patch(udev))
4224                         return -ENODEV;
4225         }
4226
4227         data = devm_kzalloc(&intf->dev, sizeof(*data), GFP_KERNEL);
4228         if (!data)
4229                 return -ENOMEM;
4230
4231         for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
4232                 ep_desc = &intf->cur_altsetting->endpoint[i].desc;
4233
4234                 if (!data->intr_ep && usb_endpoint_is_int_in(ep_desc)) {
4235                         data->intr_ep = ep_desc;
4236                         continue;
4237                 }
4238
4239                 if (!data->bulk_tx_ep && usb_endpoint_is_bulk_out(ep_desc)) {
4240                         data->bulk_tx_ep = ep_desc;
4241                         continue;
4242                 }
4243
4244                 if (!data->bulk_rx_ep && usb_endpoint_is_bulk_in(ep_desc)) {
4245                         data->bulk_rx_ep = ep_desc;
4246                         continue;
4247                 }
4248         }
4249
4250         if (!data->intr_ep || !data->bulk_tx_ep || !data->bulk_rx_ep)
4251                 return -ENODEV;
4252
4253         if (id->driver_info & BTUSB_AMP) {
4254                 data->cmdreq_type = USB_TYPE_CLASS | 0x01;
4255                 data->cmdreq = 0x2b;
4256         } else {
4257                 data->cmdreq_type = USB_TYPE_CLASS;
4258                 data->cmdreq = 0x00;
4259         }
4260
4261         data->udev = interface_to_usbdev(intf);
4262         data->intf = intf;
4263
4264         INIT_WORK(&data->work, btusb_work);
4265         INIT_WORK(&data->waker, btusb_waker);
4266         INIT_DELAYED_WORK(&data->rx_work, btusb_rx_work);
4267
4268         skb_queue_head_init(&data->acl_q);
4269
4270         init_usb_anchor(&data->deferred);
4271         init_usb_anchor(&data->tx_anchor);
4272         spin_lock_init(&data->txlock);
4273
4274         init_usb_anchor(&data->intr_anchor);
4275         init_usb_anchor(&data->bulk_anchor);
4276         init_usb_anchor(&data->isoc_anchor);
4277         init_usb_anchor(&data->diag_anchor);
4278         init_usb_anchor(&data->ctrl_anchor);
4279         spin_lock_init(&data->rxlock);
4280
4281         priv_size = 0;
4282
4283         data->recv_event = hci_recv_frame;
4284         data->recv_bulk = btusb_recv_bulk;
4285
4286         if (id->driver_info & BTUSB_INTEL_COMBINED) {
4287                 /* Allocate extra space for Intel device */
4288                 priv_size += sizeof(struct btintel_data);
4289
4290                 /* Override the rx handlers */
4291                 data->recv_event = btintel_recv_event;
4292                 data->recv_bulk = btusb_recv_bulk_intel;
4293         } else if (id->driver_info & BTUSB_REALTEK) {
4294                 /* Allocate extra space for Realtek device */
4295                 priv_size += sizeof(struct btrealtek_data);
4296
4297                 data->recv_event = btusb_recv_event_realtek;
4298         } else if (id->driver_info & BTUSB_MEDIATEK) {
4299                 /* Allocate extra space for Mediatek device */
4300                 priv_size += sizeof(struct btmediatek_data);
4301         }
4302
4303         data->recv_acl = hci_recv_frame;
4304
4305         hdev = hci_alloc_dev_priv(priv_size);
4306         if (!hdev)
4307                 return -ENOMEM;
4308
4309         hdev->bus = HCI_USB;
4310         hci_set_drvdata(hdev, data);
4311
4312         if (id->driver_info & BTUSB_AMP)
4313                 hdev->dev_type = HCI_AMP;
4314         else
4315                 hdev->dev_type = HCI_PRIMARY;
4316
4317         data->hdev = hdev;
4318
4319         SET_HCIDEV_DEV(hdev, &intf->dev);
4320
4321         reset_gpio = gpiod_get_optional(&data->udev->dev, "reset",
4322                                         GPIOD_OUT_LOW);
4323         if (IS_ERR(reset_gpio)) {
4324                 err = PTR_ERR(reset_gpio);
4325                 goto out_free_dev;
4326         } else if (reset_gpio) {
4327                 data->reset_gpio = reset_gpio;
4328         }
4329
4330         hdev->open   = btusb_open;
4331         hdev->close  = btusb_close;
4332         hdev->flush  = btusb_flush;
4333         hdev->send   = btusb_send_frame;
4334         hdev->notify = btusb_notify;
4335         hdev->wakeup = btusb_wakeup;
4336
4337 #ifdef CONFIG_PM
4338         err = btusb_config_oob_wake(hdev);
4339         if (err)
4340                 goto out_free_dev;
4341
4342         /* Marvell devices may need a specific chip configuration */
4343         if (id->driver_info & BTUSB_MARVELL && data->oob_wake_irq) {
4344                 err = marvell_config_oob_wake(hdev);
4345                 if (err)
4346                         goto out_free_dev;
4347         }
4348 #endif
4349         if (id->driver_info & BTUSB_CW6622)
4350                 set_bit(HCI_QUIRK_BROKEN_STORED_LINK_KEY, &hdev->quirks);
4351
4352         if (id->driver_info & BTUSB_BCM2045)
4353                 set_bit(HCI_QUIRK_BROKEN_STORED_LINK_KEY, &hdev->quirks);
4354
4355         if (id->driver_info & BTUSB_BCM92035)
4356                 hdev->setup = btusb_setup_bcm92035;
4357
4358         if (IS_ENABLED(CONFIG_BT_HCIBTUSB_BCM) &&
4359             (id->driver_info & BTUSB_BCM_PATCHRAM)) {
4360                 hdev->manufacturer = 15;
4361                 hdev->setup = btbcm_setup_patchram;
4362                 hdev->set_diag = btusb_bcm_set_diag;
4363                 hdev->set_bdaddr = btbcm_set_bdaddr;
4364
4365                 /* Broadcom LM_DIAG Interface numbers are hardcoded */
4366                 data->diag = usb_ifnum_to_if(data->udev, ifnum_base + 2);
4367         }
4368
4369         if (IS_ENABLED(CONFIG_BT_HCIBTUSB_BCM) &&
4370             (id->driver_info & BTUSB_BCM_APPLE)) {
4371                 hdev->manufacturer = 15;
4372                 hdev->setup = btbcm_setup_apple;
4373                 hdev->set_diag = btusb_bcm_set_diag;
4374
4375                 /* Broadcom LM_DIAG Interface numbers are hardcoded */
4376                 data->diag = usb_ifnum_to_if(data->udev, ifnum_base + 2);
4377         }
4378
4379         /* Combined Intel Device setup to support multiple setup routine */
4380         if (id->driver_info & BTUSB_INTEL_COMBINED) {
4381                 err = btintel_configure_setup(hdev, btusb_driver.name);
4382                 if (err)
4383                         goto out_free_dev;
4384
4385                 /* Transport specific configuration */
4386                 hdev->send = btusb_send_frame_intel;
4387                 hdev->cmd_timeout = btusb_intel_cmd_timeout;
4388
4389                 if (id->driver_info & BTUSB_INTEL_NO_WBS_SUPPORT)
4390                         btintel_set_flag(hdev, INTEL_ROM_LEGACY_NO_WBS_SUPPORT);
4391
4392                 if (id->driver_info & BTUSB_INTEL_BROKEN_INITIAL_NCMD)
4393                         btintel_set_flag(hdev, INTEL_BROKEN_INITIAL_NCMD);
4394
4395                 if (id->driver_info & BTUSB_INTEL_BROKEN_SHUTDOWN_LED)
4396                         btintel_set_flag(hdev, INTEL_BROKEN_SHUTDOWN_LED);
4397         }
4398
4399         if (id->driver_info & BTUSB_MARVELL)
4400                 hdev->set_bdaddr = btusb_set_bdaddr_marvell;
4401
4402         if (IS_ENABLED(CONFIG_BT_HCIBTUSB_MTK) &&
4403             (id->driver_info & BTUSB_MEDIATEK)) {
4404                 hdev->setup = btusb_mtk_setup;
4405                 hdev->shutdown = btusb_mtk_shutdown;
4406                 hdev->manufacturer = 70;
4407                 hdev->cmd_timeout = btmtk_reset_sync;
4408                 hdev->set_bdaddr = btmtk_set_bdaddr;
4409                 set_bit(HCI_QUIRK_BROKEN_ENHANCED_SETUP_SYNC_CONN, &hdev->quirks);
4410                 set_bit(HCI_QUIRK_NON_PERSISTENT_SETUP, &hdev->quirks);
4411                 data->recv_acl = btusb_recv_acl_mtk;
4412         }
4413
4414         if (id->driver_info & BTUSB_SWAVE) {
4415                 set_bit(HCI_QUIRK_FIXUP_INQUIRY_MODE, &hdev->quirks);
4416                 set_bit(HCI_QUIRK_BROKEN_LOCAL_COMMANDS, &hdev->quirks);
4417         }
4418
4419         if (id->driver_info & BTUSB_INTEL_BOOT) {
4420                 hdev->manufacturer = 2;
4421                 set_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks);
4422         }
4423
4424         if (id->driver_info & BTUSB_ATH3012) {
4425                 data->setup_on_usb = btusb_setup_qca;
4426                 hdev->set_bdaddr = btusb_set_bdaddr_ath3012;
4427                 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks);
4428                 set_bit(HCI_QUIRK_STRICT_DUPLICATE_FILTER, &hdev->quirks);
4429         }
4430
4431         if (id->driver_info & BTUSB_QCA_ROME) {
4432                 data->setup_on_usb = btusb_setup_qca;
4433                 hdev->shutdown = btusb_shutdown_qca;
4434                 hdev->set_bdaddr = btusb_set_bdaddr_ath3012;
4435                 hdev->cmd_timeout = btusb_qca_cmd_timeout;
4436                 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks);
4437                 btusb_check_needs_reset_resume(intf);
4438         }
4439
4440         if (id->driver_info & BTUSB_QCA_WCN6855) {
4441                 data->qca_dump.id_vendor = id->idVendor;
4442                 data->qca_dump.id_product = id->idProduct;
4443                 data->recv_event = btusb_recv_evt_qca;
4444                 data->recv_acl = btusb_recv_acl_qca;
4445                 hci_devcd_register(hdev, btusb_coredump_qca, btusb_dump_hdr_qca, NULL);
4446                 data->setup_on_usb = btusb_setup_qca;
4447                 hdev->shutdown = btusb_shutdown_qca;
4448                 hdev->set_bdaddr = btusb_set_bdaddr_wcn6855;
4449                 hdev->cmd_timeout = btusb_qca_cmd_timeout;
4450                 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks);
4451                 hci_set_msft_opcode(hdev, 0xFD70);
4452         }
4453
4454         if (id->driver_info & BTUSB_AMP) {
4455                 /* AMP controllers do not support SCO packets */
4456                 data->isoc = NULL;
4457         } else {
4458                 /* Interface orders are hardcoded in the specification */
4459                 data->isoc = usb_ifnum_to_if(data->udev, ifnum_base + 1);
4460                 data->isoc_ifnum = ifnum_base + 1;
4461         }
4462
4463         if (IS_ENABLED(CONFIG_BT_HCIBTUSB_RTL) &&
4464             (id->driver_info & BTUSB_REALTEK)) {
4465                 btrtl_set_driver_name(hdev, btusb_driver.name);
4466                 hdev->setup = btusb_setup_realtek;
4467                 hdev->shutdown = btrtl_shutdown_realtek;
4468                 hdev->cmd_timeout = btusb_rtl_cmd_timeout;
4469                 hdev->hw_error = btusb_rtl_hw_error;
4470
4471                 /* Realtek devices need to set remote wakeup on auto-suspend */
4472                 set_bit(BTUSB_WAKEUP_AUTOSUSPEND, &data->flags);
4473                 set_bit(BTUSB_USE_ALT3_FOR_WBS, &data->flags);
4474         }
4475
4476         if (id->driver_info & BTUSB_ACTIONS_SEMI) {
4477                 /* Support is advertised, but not implemented */
4478                 set_bit(HCI_QUIRK_BROKEN_ERR_DATA_REPORTING, &hdev->quirks);
4479                 set_bit(HCI_QUIRK_BROKEN_READ_TRANSMIT_POWER, &hdev->quirks);
4480                 set_bit(HCI_QUIRK_BROKEN_SET_RPA_TIMEOUT, &hdev->quirks);
4481                 set_bit(HCI_QUIRK_BROKEN_EXT_SCAN, &hdev->quirks);
4482         }
4483
4484         if (!reset)
4485                 set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
4486
4487         if (force_scofix || id->driver_info & BTUSB_WRONG_SCO_MTU) {
4488                 if (!disable_scofix)
4489                         set_bit(HCI_QUIRK_FIXUP_BUFFER_SIZE, &hdev->quirks);
4490         }
4491
4492         if (id->driver_info & BTUSB_BROKEN_ISOC)
4493                 data->isoc = NULL;
4494
4495         if (id->driver_info & BTUSB_WIDEBAND_SPEECH)
4496                 set_bit(HCI_QUIRK_WIDEBAND_SPEECH_SUPPORTED, &hdev->quirks);
4497
4498         if (id->driver_info & BTUSB_VALID_LE_STATES)
4499                 set_bit(HCI_QUIRK_VALID_LE_STATES, &hdev->quirks);
4500
4501         if (id->driver_info & BTUSB_DIGIANSWER) {
4502                 data->cmdreq_type = USB_TYPE_VENDOR;
4503                 set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
4504         }
4505
4506         if (id->driver_info & BTUSB_CSR) {
4507                 struct usb_device *udev = data->udev;
4508                 u16 bcdDevice = le16_to_cpu(udev->descriptor.bcdDevice);
4509
4510                 /* Old firmware would otherwise execute USB reset */
4511                 if (bcdDevice < 0x117)
4512                         set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
4513
4514                 /* This must be set first in case we disable it for fakes */
4515                 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks);
4516
4517                 /* Fake CSR devices with broken commands */
4518                 if (le16_to_cpu(udev->descriptor.idVendor)  == 0x0a12 &&
4519                     le16_to_cpu(udev->descriptor.idProduct) == 0x0001)
4520                         hdev->setup = btusb_setup_csr;
4521         }
4522
4523         if (id->driver_info & BTUSB_SNIFFER) {
4524                 struct usb_device *udev = data->udev;
4525
4526                 /* New sniffer firmware has crippled HCI interface */
4527                 if (le16_to_cpu(udev->descriptor.bcdDevice) > 0x997)
4528                         set_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks);
4529         }
4530
4531         if (id->driver_info & BTUSB_INTEL_BOOT) {
4532                 /* A bug in the bootloader causes that interrupt interface is
4533                  * only enabled after receiving SetInterface(0, AltSetting=0).
4534                  */
4535                 err = usb_set_interface(data->udev, 0, 0);
4536                 if (err < 0) {
4537                         BT_ERR("failed to set interface 0, alt 0 %d", err);
4538                         goto out_free_dev;
4539                 }
4540         }
4541
4542         if (data->isoc) {
4543                 err = usb_driver_claim_interface(&btusb_driver,
4544                                                  data->isoc, data);
4545                 if (err < 0)
4546                         goto out_free_dev;
4547         }
4548
4549         if (IS_ENABLED(CONFIG_BT_HCIBTUSB_BCM) && data->diag) {
4550                 if (!usb_driver_claim_interface(&btusb_driver,
4551                                                 data->diag, data))
4552                         __set_diag_interface(hdev);
4553                 else
4554                         data->diag = NULL;
4555         }
4556
4557         if (enable_autosuspend)
4558                 usb_enable_autosuspend(data->udev);
4559
4560         data->poll_sync = enable_poll_sync;
4561
4562         err = hci_register_dev(hdev);
4563         if (err < 0)
4564                 goto out_free_dev;
4565
4566         usb_set_intfdata(intf, data);
4567
4568         debugfs_create_file("force_poll_sync", 0644, hdev->debugfs, data,
4569                             &force_poll_sync_fops);
4570
4571         return 0;
4572
4573 out_free_dev:
4574         if (data->reset_gpio)
4575                 gpiod_put(data->reset_gpio);
4576         hci_free_dev(hdev);
4577         return err;
4578 }
4579
4580 static void btusb_disconnect(struct usb_interface *intf)
4581 {
4582         struct btusb_data *data = usb_get_intfdata(intf);
4583         struct hci_dev *hdev;
4584
4585         BT_DBG("intf %p", intf);
4586
4587         if (!data)
4588                 return;
4589
4590         hdev = data->hdev;
4591         usb_set_intfdata(data->intf, NULL);
4592
4593         if (data->isoc)
4594                 usb_set_intfdata(data->isoc, NULL);
4595
4596         if (data->diag)
4597                 usb_set_intfdata(data->diag, NULL);
4598
4599         hci_unregister_dev(hdev);
4600
4601         if (intf == data->intf) {
4602                 if (data->isoc)
4603                         usb_driver_release_interface(&btusb_driver, data->isoc);
4604                 if (data->diag)
4605                         usb_driver_release_interface(&btusb_driver, data->diag);
4606         } else if (intf == data->isoc) {
4607                 if (data->diag)
4608                         usb_driver_release_interface(&btusb_driver, data->diag);
4609                 usb_driver_release_interface(&btusb_driver, data->intf);
4610         } else if (intf == data->diag) {
4611                 usb_driver_release_interface(&btusb_driver, data->intf);
4612                 if (data->isoc)
4613                         usb_driver_release_interface(&btusb_driver, data->isoc);
4614         }
4615
4616         if (data->oob_wake_irq)
4617                 device_init_wakeup(&data->udev->dev, false);
4618
4619         if (data->reset_gpio)
4620                 gpiod_put(data->reset_gpio);
4621
4622         hci_free_dev(hdev);
4623 }
4624
4625 #ifdef CONFIG_PM
4626 static int btusb_suspend(struct usb_interface *intf, pm_message_t message)
4627 {
4628         struct btusb_data *data = usb_get_intfdata(intf);
4629
4630         BT_DBG("intf %p", intf);
4631
4632         if (data->suspend_count++)
4633                 return 0;
4634
4635         spin_lock_irq(&data->txlock);
4636         if (!(PMSG_IS_AUTO(message) && data->tx_in_flight)) {
4637                 set_bit(BTUSB_SUSPENDING, &data->flags);
4638                 spin_unlock_irq(&data->txlock);
4639         } else {
4640                 spin_unlock_irq(&data->txlock);
4641                 data->suspend_count--;
4642                 return -EBUSY;
4643         }
4644
4645         cancel_work_sync(&data->work);
4646
4647         btusb_stop_traffic(data);
4648         usb_kill_anchored_urbs(&data->tx_anchor);
4649
4650         if (data->oob_wake_irq && device_may_wakeup(&data->udev->dev)) {
4651                 set_bit(BTUSB_OOB_WAKE_ENABLED, &data->flags);
4652                 enable_irq_wake(data->oob_wake_irq);
4653                 enable_irq(data->oob_wake_irq);
4654         }
4655
4656         /* For global suspend, Realtek devices lose the loaded fw
4657          * in them. But for autosuspend, firmware should remain.
4658          * Actually, it depends on whether the usb host sends
4659          * set feature (enable wakeup) or not.
4660          */
4661         if (test_bit(BTUSB_WAKEUP_AUTOSUSPEND, &data->flags)) {
4662                 if (PMSG_IS_AUTO(message) &&
4663                     device_can_wakeup(&data->udev->dev))
4664                         data->udev->do_remote_wakeup = 1;
4665                 else if (!PMSG_IS_AUTO(message) &&
4666                          !device_may_wakeup(&data->udev->dev)) {
4667                         data->udev->do_remote_wakeup = 0;
4668                         data->udev->reset_resume = 1;
4669                 }
4670         }
4671
4672         return 0;
4673 }
4674
4675 static void play_deferred(struct btusb_data *data)
4676 {
4677         struct urb *urb;
4678         int err;
4679
4680         while ((urb = usb_get_from_anchor(&data->deferred))) {
4681                 usb_anchor_urb(urb, &data->tx_anchor);
4682
4683                 err = usb_submit_urb(urb, GFP_ATOMIC);
4684                 if (err < 0) {
4685                         if (err != -EPERM && err != -ENODEV)
4686                                 BT_ERR("%s urb %p submission failed (%d)",
4687                                        data->hdev->name, urb, -err);
4688                         kfree(urb->setup_packet);
4689                         usb_unanchor_urb(urb);
4690                         usb_free_urb(urb);
4691                         break;
4692                 }
4693
4694                 data->tx_in_flight++;
4695                 usb_free_urb(urb);
4696         }
4697
4698         /* Cleanup the rest deferred urbs. */
4699         while ((urb = usb_get_from_anchor(&data->deferred))) {
4700                 kfree(urb->setup_packet);
4701                 usb_free_urb(urb);
4702         }
4703 }
4704
4705 static int btusb_resume(struct usb_interface *intf)
4706 {
4707         struct btusb_data *data = usb_get_intfdata(intf);
4708         struct hci_dev *hdev = data->hdev;
4709         int err = 0;
4710
4711         BT_DBG("intf %p", intf);
4712
4713         if (--data->suspend_count)
4714                 return 0;
4715
4716         /* Disable only if not already disabled (keep it balanced) */
4717         if (test_and_clear_bit(BTUSB_OOB_WAKE_ENABLED, &data->flags)) {
4718                 disable_irq(data->oob_wake_irq);
4719                 disable_irq_wake(data->oob_wake_irq);
4720         }
4721
4722         if (!test_bit(HCI_RUNNING, &hdev->flags))
4723                 goto done;
4724
4725         if (test_bit(BTUSB_INTR_RUNNING, &data->flags)) {
4726                 err = btusb_submit_intr_urb(hdev, GFP_NOIO);
4727                 if (err < 0) {
4728                         clear_bit(BTUSB_INTR_RUNNING, &data->flags);
4729                         goto failed;
4730                 }
4731         }
4732
4733         if (test_bit(BTUSB_BULK_RUNNING, &data->flags)) {
4734                 err = btusb_submit_bulk_urb(hdev, GFP_NOIO);
4735                 if (err < 0) {
4736                         clear_bit(BTUSB_BULK_RUNNING, &data->flags);
4737                         goto failed;
4738                 }
4739
4740                 btusb_submit_bulk_urb(hdev, GFP_NOIO);
4741         }
4742
4743         if (test_bit(BTUSB_ISOC_RUNNING, &data->flags)) {
4744                 if (btusb_submit_isoc_urb(hdev, GFP_NOIO) < 0)
4745                         clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
4746                 else
4747                         btusb_submit_isoc_urb(hdev, GFP_NOIO);
4748         }
4749
4750         spin_lock_irq(&data->txlock);
4751         play_deferred(data);
4752         clear_bit(BTUSB_SUSPENDING, &data->flags);
4753         spin_unlock_irq(&data->txlock);
4754         schedule_work(&data->work);
4755
4756         return 0;
4757
4758 failed:
4759         usb_scuttle_anchored_urbs(&data->deferred);
4760 done:
4761         spin_lock_irq(&data->txlock);
4762         clear_bit(BTUSB_SUSPENDING, &data->flags);
4763         spin_unlock_irq(&data->txlock);
4764
4765         return err;
4766 }
4767 #endif
4768
4769 #ifdef CONFIG_DEV_COREDUMP
4770 static void btusb_coredump(struct device *dev)
4771 {
4772         struct btusb_data *data = dev_get_drvdata(dev);
4773         struct hci_dev *hdev = data->hdev;
4774
4775         if (hdev->dump.coredump)
4776                 hdev->dump.coredump(hdev);
4777 }
4778 #endif
4779
4780 static struct usb_driver btusb_driver = {
4781         .name           = "btusb",
4782         .probe          = btusb_probe,
4783         .disconnect     = btusb_disconnect,
4784 #ifdef CONFIG_PM
4785         .suspend        = btusb_suspend,
4786         .resume         = btusb_resume,
4787 #endif
4788         .id_table       = btusb_table,
4789         .supports_autosuspend = 1,
4790         .disable_hub_initiated_lpm = 1,
4791
4792 #ifdef CONFIG_DEV_COREDUMP
4793         .drvwrap = {
4794                 .driver = {
4795                         .coredump = btusb_coredump,
4796                 },
4797         },
4798 #endif
4799 };
4800
4801 module_usb_driver(btusb_driver);
4802
4803 module_param(disable_scofix, bool, 0644);
4804 MODULE_PARM_DESC(disable_scofix, "Disable fixup of wrong SCO buffer size");
4805
4806 module_param(force_scofix, bool, 0644);
4807 MODULE_PARM_DESC(force_scofix, "Force fixup of wrong SCO buffers size");
4808
4809 module_param(enable_autosuspend, bool, 0644);
4810 MODULE_PARM_DESC(enable_autosuspend, "Enable USB autosuspend by default");
4811
4812 module_param(reset, bool, 0644);
4813 MODULE_PARM_DESC(reset, "Send HCI reset command on initialization");
4814
4815 MODULE_AUTHOR("Marcel Holtmann <marcel@holtmann.org>");
4816 MODULE_DESCRIPTION("Generic Bluetooth USB driver ver " VERSION);
4817 MODULE_VERSION(VERSION);
4818 MODULE_LICENSE("GPL");