drivers/bluetooth/btusb.c

   1 // SPDX-License-Identifier: GPL-2.0-or-later
   2 /*
   3  *
   4  *  Generic Bluetooth USB driver
   5  *
   6  *  Copyright (C) 2005-2008  Marcel Holtmann <[email protected]>
   7  */
   8
   9 #include <linux/dmi.h>
  10 #include <linux/module.h>
  11 #include <linux/usb.h>
  12 #include <linux/usb/quirks.h>
  13 #include <linux/firmware.h>
  14 #include <linux/iopoll.h>
  15 #include <linux/of_device.h>
  16 #include <linux/of_irq.h>
  17 #include <linux/suspend.h>
  18 #include <linux/gpio/consumer.h>
  19 #include <linux/debugfs.h>
  20 #include <linux/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_INVALID_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         { USB_DEVICE(0x0489, 0xe0cc), .driver_info = BTUSB_QCA_WCN6855 |
 303                                                      BTUSB_WIDEBAND_SPEECH },
 304         { USB_DEVICE(0x0489, 0xe0d6), .driver_info = BTUSB_QCA_WCN6855 |
 305                                                      BTUSB_WIDEBAND_SPEECH },
 306         { USB_DEVICE(0x0489, 0xe0e3), .driver_info = BTUSB_QCA_WCN6855 |
 307                                                      BTUSB_WIDEBAND_SPEECH },
 308         { USB_DEVICE(0x10ab, 0x9309), .driver_info = BTUSB_QCA_WCN6855 |
 309                                                      BTUSB_WIDEBAND_SPEECH },
 310         { USB_DEVICE(0x10ab, 0x9409), .driver_info = BTUSB_QCA_WCN6855 |
 311                                                      BTUSB_WIDEBAND_SPEECH },
 312         { USB_DEVICE(0x0489, 0xe0d0), .driver_info = BTUSB_QCA_WCN6855 |
 313                                                      BTUSB_WIDEBAND_SPEECH },
 314         { USB_DEVICE(0x10ab, 0x9108), .driver_info = BTUSB_QCA_WCN6855 |
 315                                                      BTUSB_WIDEBAND_SPEECH },
 316         { USB_DEVICE(0x10ab, 0x9109), .driver_info = BTUSB_QCA_WCN6855 |
 317                                                      BTUSB_WIDEBAND_SPEECH },
 318         { USB_DEVICE(0x10ab, 0x9208), .driver_info = BTUSB_QCA_WCN6855 |
 319                                                      BTUSB_WIDEBAND_SPEECH },
 320         { USB_DEVICE(0x10ab, 0x9209), .driver_info = BTUSB_QCA_WCN6855 |
 321                                                      BTUSB_WIDEBAND_SPEECH },
 322         { USB_DEVICE(0x10ab, 0x9308), .driver_info = BTUSB_QCA_WCN6855 |
 323                                                      BTUSB_WIDEBAND_SPEECH },
 324         { USB_DEVICE(0x10ab, 0x9408), .driver_info = BTUSB_QCA_WCN6855 |
 325                                                      BTUSB_WIDEBAND_SPEECH },
 326         { USB_DEVICE(0x10ab, 0x9508), .driver_info = BTUSB_QCA_WCN6855 |
 327                                                      BTUSB_WIDEBAND_SPEECH },
 328         { USB_DEVICE(0x10ab, 0x9509), .driver_info = BTUSB_QCA_WCN6855 |
 329                                                      BTUSB_WIDEBAND_SPEECH },
 330         { USB_DEVICE(0x10ab, 0x9608), .driver_info = BTUSB_QCA_WCN6855 |
 331                                                      BTUSB_WIDEBAND_SPEECH },
 332         { USB_DEVICE(0x10ab, 0x9609), .driver_info = BTUSB_QCA_WCN6855 |
 333                                                      BTUSB_WIDEBAND_SPEECH },
 334         { USB_DEVICE(0x10ab, 0x9f09), .driver_info = BTUSB_QCA_WCN6855 |
 335                                                      BTUSB_WIDEBAND_SPEECH },
 336         { USB_DEVICE(0x04ca, 0x3022), .driver_info = BTUSB_QCA_WCN6855 |
 337                                                      BTUSB_WIDEBAND_SPEECH },
 338         { USB_DEVICE(0x0489, 0xe0c7), .driver_info = BTUSB_QCA_WCN6855 |
 339                                                      BTUSB_WIDEBAND_SPEECH },
 340         { USB_DEVICE(0x0489, 0xe0c9), .driver_info = BTUSB_QCA_WCN6855 |
 341                                                      BTUSB_WIDEBAND_SPEECH },
 342         { USB_DEVICE(0x0489, 0xe0ca), .driver_info = BTUSB_QCA_WCN6855 |
 343                                                      BTUSB_WIDEBAND_SPEECH },
 344         { USB_DEVICE(0x0489, 0xe0cb), .driver_info = BTUSB_QCA_WCN6855 |
 345                                                      BTUSB_WIDEBAND_SPEECH },
 346         { USB_DEVICE(0x0489, 0xe0ce), .driver_info = BTUSB_QCA_WCN6855 |
 347                                                      BTUSB_WIDEBAND_SPEECH },
 348         { USB_DEVICE(0x0489, 0xe0de), .driver_info = BTUSB_QCA_WCN6855 |
 349                                                      BTUSB_WIDEBAND_SPEECH },
 350         { USB_DEVICE(0x0489, 0xe0df), .driver_info = BTUSB_QCA_WCN6855 |
 351                                                      BTUSB_WIDEBAND_SPEECH },
 352         { USB_DEVICE(0x0489, 0xe0e1), .driver_info = BTUSB_QCA_WCN6855 |
 353                                                      BTUSB_WIDEBAND_SPEECH },
 354         { USB_DEVICE(0x0489, 0xe0ea), .driver_info = BTUSB_QCA_WCN6855 |
 355                                                      BTUSB_WIDEBAND_SPEECH },
 356         { USB_DEVICE(0x0489, 0xe0ec), .driver_info = BTUSB_QCA_WCN6855 |
 357                                                      BTUSB_WIDEBAND_SPEECH },
 358         { USB_DEVICE(0x04ca, 0x3023), .driver_info = BTUSB_QCA_WCN6855 |
 359                                                      BTUSB_WIDEBAND_SPEECH },
 360         { USB_DEVICE(0x04ca, 0x3024), .driver_info = BTUSB_QCA_WCN6855 |
 361                                                      BTUSB_WIDEBAND_SPEECH },
 362         { USB_DEVICE(0x04ca, 0x3a22), .driver_info = BTUSB_QCA_WCN6855 |
 363                                                      BTUSB_WIDEBAND_SPEECH },
 364         { USB_DEVICE(0x04ca, 0x3a24), .driver_info = BTUSB_QCA_WCN6855 |
 365                                                      BTUSB_WIDEBAND_SPEECH },
 366         { USB_DEVICE(0x04ca, 0x3a26), .driver_info = BTUSB_QCA_WCN6855 |
 367                                                      BTUSB_WIDEBAND_SPEECH },
 368         { USB_DEVICE(0x04ca, 0x3a27), .driver_info = BTUSB_QCA_WCN6855 |
 369                                                      BTUSB_WIDEBAND_SPEECH },
 370
 371         /* QCA WCN785x chipset */
 372         { USB_DEVICE(0x0cf3, 0xe700), .driver_info = BTUSB_QCA_WCN6855 |
 373                                                      BTUSB_WIDEBAND_SPEECH },
 374         { USB_DEVICE(0x0489, 0xe0fc), .driver_info = BTUSB_QCA_WCN6855 |
 375                                                      BTUSB_WIDEBAND_SPEECH },
 376         { USB_DEVICE(0x0489, 0xe0f3), .driver_info = BTUSB_QCA_WCN6855 |
 377                                                      BTUSB_WIDEBAND_SPEECH },
 378         { USB_DEVICE(0x13d3, 0x3623), .driver_info = BTUSB_QCA_WCN6855 |
 379                                                      BTUSB_WIDEBAND_SPEECH },
 380
 381         /* Broadcom BCM2035 */
 382         { USB_DEVICE(0x0a5c, 0x2009), .driver_info = BTUSB_BCM92035 },
 383         { USB_DEVICE(0x0a5c, 0x200a), .driver_info = BTUSB_WRONG_SCO_MTU },
 384         { USB_DEVICE(0x0a5c, 0x2035), .driver_info = BTUSB_WRONG_SCO_MTU },
 385
 386         /* Broadcom BCM2045 */
 387         { USB_DEVICE(0x0a5c, 0x2039), .driver_info = BTUSB_WRONG_SCO_MTU },
 388         { USB_DEVICE(0x0a5c, 0x2101), .driver_info = BTUSB_WRONG_SCO_MTU },
 389
 390         /* IBM/Lenovo ThinkPad with Broadcom chip */
 391         { USB_DEVICE(0x0a5c, 0x201e), .driver_info = BTUSB_WRONG_SCO_MTU },
 392         { USB_DEVICE(0x0a5c, 0x2110), .driver_info = BTUSB_WRONG_SCO_MTU },
 393
 394         /* HP laptop with Broadcom chip */
 395         { USB_DEVICE(0x03f0, 0x171d), .driver_info = BTUSB_WRONG_SCO_MTU },
 396
 397         /* Dell laptop with Broadcom chip */
 398         { USB_DEVICE(0x413c, 0x8126), .driver_info = BTUSB_WRONG_SCO_MTU },
 399
 400         /* Dell Wireless 370 and 410 devices */
 401         { USB_DEVICE(0x413c, 0x8152), .driver_info = BTUSB_WRONG_SCO_MTU },
 402         { USB_DEVICE(0x413c, 0x8156), .driver_info = BTUSB_WRONG_SCO_MTU },
 403
 404         /* Belkin F8T012 and F8T013 devices */
 405         { USB_DEVICE(0x050d, 0x0012), .driver_info = BTUSB_WRONG_SCO_MTU },
 406         { USB_DEVICE(0x050d, 0x0013), .driver_info = BTUSB_WRONG_SCO_MTU },
 407
 408         /* Asus WL-BTD202 device */
 409         { USB_DEVICE(0x0b05, 0x1715), .driver_info = BTUSB_WRONG_SCO_MTU },
 410
 411         /* Kensington Bluetooth USB adapter */
 412         { USB_DEVICE(0x047d, 0x105e), .driver_info = BTUSB_WRONG_SCO_MTU },
 413
 414         /* RTX Telecom based adapters with buggy SCO support */
 415         { USB_DEVICE(0x0400, 0x0807), .driver_info = BTUSB_BROKEN_ISOC },
 416         { USB_DEVICE(0x0400, 0x080a), .driver_info = BTUSB_BROKEN_ISOC },
 417
 418         /* CONWISE Technology based adapters with buggy SCO support */
 419         { USB_DEVICE(0x0e5e, 0x6622),
 420           .driver_info = BTUSB_BROKEN_ISOC | BTUSB_CW6622},
 421
 422         /* Roper Class 1 Bluetooth Dongle (Silicon Wave based) */
 423         { USB_DEVICE(0x1310, 0x0001), .driver_info = BTUSB_SWAVE },
 424
 425         /* Digianswer devices */
 426         { USB_DEVICE(0x08fd, 0x0001), .driver_info = BTUSB_DIGIANSWER },
 427         { USB_DEVICE(0x08fd, 0x0002), .driver_info = BTUSB_IGNORE },
 428
 429         /* CSR BlueCore Bluetooth Sniffer */
 430         { USB_DEVICE(0x0a12, 0x0002),
 431           .driver_info = BTUSB_SNIFFER | BTUSB_BROKEN_ISOC },
 432
 433         /* Frontline ComProbe Bluetooth Sniffer */
 434         { USB_DEVICE(0x16d3, 0x0002),
 435           .driver_info = BTUSB_SNIFFER | BTUSB_BROKEN_ISOC },
 436
 437         /* Marvell Bluetooth devices */
 438         { USB_DEVICE(0x1286, 0x2044), .driver_info = BTUSB_MARVELL },
 439         { USB_DEVICE(0x1286, 0x2046), .driver_info = BTUSB_MARVELL },
 440         { USB_DEVICE(0x1286, 0x204e), .driver_info = BTUSB_MARVELL },
 441
 442         /* Intel Bluetooth devices */
 443         { USB_DEVICE(0x8087, 0x0025), .driver_info = BTUSB_INTEL_COMBINED },
 444         { USB_DEVICE(0x8087, 0x0026), .driver_info = BTUSB_INTEL_COMBINED },
 445         { USB_DEVICE(0x8087, 0x0029), .driver_info = BTUSB_INTEL_COMBINED },
 446         { USB_DEVICE(0x8087, 0x0032), .driver_info = BTUSB_INTEL_COMBINED },
 447         { USB_DEVICE(0x8087, 0x0033), .driver_info = BTUSB_INTEL_COMBINED },
 448         { USB_DEVICE(0x8087, 0x0035), .driver_info = BTUSB_INTEL_COMBINED },
 449         { USB_DEVICE(0x8087, 0x0036), .driver_info = BTUSB_INTEL_COMBINED },
 450         { USB_DEVICE(0x8087, 0x0037), .driver_info = BTUSB_INTEL_COMBINED },
 451         { USB_DEVICE(0x8087, 0x0038), .driver_info = BTUSB_INTEL_COMBINED },
 452         { USB_DEVICE(0x8087, 0x0039), .driver_info = BTUSB_INTEL_COMBINED },
 453         { USB_DEVICE(0x8087, 0x07da), .driver_info = BTUSB_CSR },
 454         { USB_DEVICE(0x8087, 0x07dc), .driver_info = BTUSB_INTEL_COMBINED |
 455                                                      BTUSB_INTEL_NO_WBS_SUPPORT |
 456                                                      BTUSB_INTEL_BROKEN_INITIAL_NCMD |
 457                                                      BTUSB_INTEL_BROKEN_SHUTDOWN_LED },
 458         { USB_DEVICE(0x8087, 0x0a2a), .driver_info = BTUSB_INTEL_COMBINED |
 459                                                      BTUSB_INTEL_NO_WBS_SUPPORT |
 460                                                      BTUSB_INTEL_BROKEN_SHUTDOWN_LED },
 461         { USB_DEVICE(0x8087, 0x0a2b), .driver_info = BTUSB_INTEL_COMBINED },
 462         { USB_DEVICE(0x8087, 0x0aa7), .driver_info = BTUSB_INTEL_COMBINED |
 463                                                      BTUSB_INTEL_BROKEN_SHUTDOWN_LED },
 464         { USB_DEVICE(0x8087, 0x0aaa), .driver_info = BTUSB_INTEL_COMBINED },
 465
 466         /* Other Intel Bluetooth devices */
 467         { USB_VENDOR_AND_INTERFACE_INFO(0x8087, 0xe0, 0x01, 0x01),
 468           .driver_info = BTUSB_IGNORE },
 469
 470         /* Realtek 8821CE Bluetooth devices */
 471         { USB_DEVICE(0x13d3, 0x3529), .driver_info = BTUSB_REALTEK |
 472                                                      BTUSB_WIDEBAND_SPEECH },
 473
 474         /* Realtek 8822CE Bluetooth devices */
 475         { USB_DEVICE(0x0bda, 0xb00c), .driver_info = BTUSB_REALTEK |
 476                                                      BTUSB_WIDEBAND_SPEECH },
 477         { USB_DEVICE(0x0bda, 0xc822), .driver_info = BTUSB_REALTEK |
 478                                                      BTUSB_WIDEBAND_SPEECH },
 479
 480         /* Realtek 8822CU Bluetooth devices */
 481         { USB_DEVICE(0x13d3, 0x3549), .driver_info = BTUSB_REALTEK |
 482                                                      BTUSB_WIDEBAND_SPEECH },
 483
 484         /* Realtek 8852AE Bluetooth devices */
 485         { USB_DEVICE(0x0bda, 0x2852), .driver_info = BTUSB_REALTEK |
 486                                                      BTUSB_WIDEBAND_SPEECH },
 487         { USB_DEVICE(0x0bda, 0xc852), .driver_info = BTUSB_REALTEK |
 488                                                      BTUSB_WIDEBAND_SPEECH },
 489         { USB_DEVICE(0x0bda, 0x385a), .driver_info = BTUSB_REALTEK |
 490                                                      BTUSB_WIDEBAND_SPEECH },
 491         { USB_DEVICE(0x0bda, 0x4852), .driver_info = BTUSB_REALTEK |
 492                                                      BTUSB_WIDEBAND_SPEECH },
 493         { USB_DEVICE(0x04c5, 0x165c), .driver_info = BTUSB_REALTEK |
 494                                                      BTUSB_WIDEBAND_SPEECH },
 495         { USB_DEVICE(0x04ca, 0x4006), .driver_info = BTUSB_REALTEK |
 496                                                      BTUSB_WIDEBAND_SPEECH },
 497         { USB_DEVICE(0x0cb8, 0xc549), .driver_info = BTUSB_REALTEK |
 498                                                      BTUSB_WIDEBAND_SPEECH },
 499
 500         /* Realtek 8852CE Bluetooth devices */
 501         { USB_DEVICE(0x04ca, 0x4007), .driver_info = BTUSB_REALTEK |
 502                                                      BTUSB_WIDEBAND_SPEECH },
 503         { USB_DEVICE(0x04c5, 0x1675), .driver_info = BTUSB_REALTEK |
 504                                                      BTUSB_WIDEBAND_SPEECH },
 505         { USB_DEVICE(0x0cb8, 0xc558), .driver_info = BTUSB_REALTEK |
 506                                                      BTUSB_WIDEBAND_SPEECH },
 507         { USB_DEVICE(0x13d3, 0x3587), .driver_info = BTUSB_REALTEK |
 508                                                      BTUSB_WIDEBAND_SPEECH },
 509         { USB_DEVICE(0x13d3, 0x3586), .driver_info = BTUSB_REALTEK |
 510                                                      BTUSB_WIDEBAND_SPEECH },
 511         { USB_DEVICE(0x13d3, 0x3592), .driver_info = BTUSB_REALTEK |
 512                                                      BTUSB_WIDEBAND_SPEECH },
 513         { USB_DEVICE(0x0489, 0xe122), .driver_info = BTUSB_REALTEK |
 514                                                      BTUSB_WIDEBAND_SPEECH },
 515
 516         /* Realtek 8852BE Bluetooth devices */
 517         { USB_DEVICE(0x0cb8, 0xc559), .driver_info = BTUSB_REALTEK |
 518                                                      BTUSB_WIDEBAND_SPEECH },
 519         { USB_DEVICE(0x0bda, 0x4853), .driver_info = BTUSB_REALTEK |
 520                                                      BTUSB_WIDEBAND_SPEECH },
 521         { USB_DEVICE(0x0bda, 0x887b), .driver_info = BTUSB_REALTEK |
 522                                                      BTUSB_WIDEBAND_SPEECH },
 523         { USB_DEVICE(0x0bda, 0xb85b), .driver_info = BTUSB_REALTEK |
 524                                                      BTUSB_WIDEBAND_SPEECH },
 525         { USB_DEVICE(0x13d3, 0x3570), .driver_info = BTUSB_REALTEK |
 526                                                      BTUSB_WIDEBAND_SPEECH },
 527         { USB_DEVICE(0x13d3, 0x3571), .driver_info = BTUSB_REALTEK |
 528                                                      BTUSB_WIDEBAND_SPEECH },
 529         { USB_DEVICE(0x13d3, 0x3572), .driver_info = BTUSB_REALTEK |
 530                                                      BTUSB_WIDEBAND_SPEECH },
 531         { USB_DEVICE(0x13d3, 0x3591), .driver_info = BTUSB_REALTEK |
 532                                                      BTUSB_WIDEBAND_SPEECH },
 533         { USB_DEVICE(0x0489, 0xe123), .driver_info = BTUSB_REALTEK |
 534                                                      BTUSB_WIDEBAND_SPEECH },
 535         { USB_DEVICE(0x0489, 0xe125), .driver_info = BTUSB_REALTEK |
 536                                                      BTUSB_WIDEBAND_SPEECH },
 537
 538         /* Realtek 8852BT/8852BE-VT Bluetooth devices */
 539         { USB_DEVICE(0x0bda, 0x8520), .driver_info = BTUSB_REALTEK |
 540                                                      BTUSB_WIDEBAND_SPEECH },
 541
 542         /* Realtek 8922AE Bluetooth devices */
 543         { USB_DEVICE(0x0bda, 0x8922), .driver_info = BTUSB_REALTEK |
 544                                                      BTUSB_WIDEBAND_SPEECH },
 545         { USB_DEVICE(0x13d3, 0x3617), .driver_info = BTUSB_REALTEK |
 546                                                      BTUSB_WIDEBAND_SPEECH },
 547         { USB_DEVICE(0x13d3, 0x3616), .driver_info = BTUSB_REALTEK |
 548                                                      BTUSB_WIDEBAND_SPEECH },
 549         { USB_DEVICE(0x0489, 0xe130), .driver_info = BTUSB_REALTEK |
 550                                                      BTUSB_WIDEBAND_SPEECH },
 551
 552         /* Realtek Bluetooth devices */
 553         { USB_VENDOR_AND_INTERFACE_INFO(0x0bda, 0xe0, 0x01, 0x01),
 554           .driver_info = BTUSB_REALTEK },
 555
 556         /* MediaTek Bluetooth devices */
 557         { USB_VENDOR_AND_INTERFACE_INFO(0x0e8d, 0xe0, 0x01, 0x01),
 558           .driver_info = BTUSB_MEDIATEK |
 559                          BTUSB_WIDEBAND_SPEECH },
 560
 561         /* Additional MediaTek MT7615E Bluetooth devices */
 562         { USB_DEVICE(0x13d3, 0x3560), .driver_info = BTUSB_MEDIATEK},
 563
 564         /* Additional MediaTek MT7663 Bluetooth devices */
 565         { USB_DEVICE(0x043e, 0x310c), .driver_info = BTUSB_MEDIATEK |
 566                                                      BTUSB_WIDEBAND_SPEECH },
 567         { USB_DEVICE(0x04ca, 0x3801), .driver_info = BTUSB_MEDIATEK |
 568                                                      BTUSB_WIDEBAND_SPEECH },
 569
 570         /* Additional MediaTek MT7668 Bluetooth devices */
 571         { USB_DEVICE(0x043e, 0x3109), .driver_info = BTUSB_MEDIATEK |
 572                                                      BTUSB_WIDEBAND_SPEECH },
 573
 574         /* Additional MediaTek MT7920 Bluetooth devices */
 575         { USB_DEVICE(0x0489, 0xe134), .driver_info = BTUSB_MEDIATEK |
 576                                                      BTUSB_WIDEBAND_SPEECH },
 577         { USB_DEVICE(0x13d3, 0x3620), .driver_info = BTUSB_MEDIATEK |
 578                                                      BTUSB_WIDEBAND_SPEECH },
 579         { USB_DEVICE(0x13d3, 0x3621), .driver_info = BTUSB_MEDIATEK |
 580                                                      BTUSB_WIDEBAND_SPEECH },
 581         { USB_DEVICE(0x13d3, 0x3622), .driver_info = BTUSB_MEDIATEK |
 582                                                      BTUSB_WIDEBAND_SPEECH },
 583
 584         /* Additional MediaTek MT7921 Bluetooth devices */
 585         { USB_DEVICE(0x0489, 0xe0c8), .driver_info = BTUSB_MEDIATEK |
 586                                                      BTUSB_WIDEBAND_SPEECH },
 587         { USB_DEVICE(0x0489, 0xe0cd), .driver_info = BTUSB_MEDIATEK |
 588                                                      BTUSB_WIDEBAND_SPEECH },
 589         { USB_DEVICE(0x0489, 0xe0e0), .driver_info = BTUSB_MEDIATEK |
 590                                                      BTUSB_WIDEBAND_SPEECH },
 591         { USB_DEVICE(0x0489, 0xe0f2), .driver_info = BTUSB_MEDIATEK |
 592                                                      BTUSB_WIDEBAND_SPEECH },
 593         { USB_DEVICE(0x04ca, 0x3802), .driver_info = BTUSB_MEDIATEK |
 594                                                      BTUSB_WIDEBAND_SPEECH },
 595         { USB_DEVICE(0x0e8d, 0x0608), .driver_info = BTUSB_MEDIATEK |
 596                                                      BTUSB_WIDEBAND_SPEECH },
 597         { USB_DEVICE(0x13d3, 0x3563), .driver_info = BTUSB_MEDIATEK |
 598                                                      BTUSB_WIDEBAND_SPEECH },
 599         { USB_DEVICE(0x13d3, 0x3564), .driver_info = BTUSB_MEDIATEK |
 600                                                      BTUSB_WIDEBAND_SPEECH },
 601         { USB_DEVICE(0x13d3, 0x3567), .driver_info = BTUSB_MEDIATEK |
 602                                                      BTUSB_WIDEBAND_SPEECH },
 603         { USB_DEVICE(0x13d3, 0x3578), .driver_info = BTUSB_MEDIATEK |
 604                                                      BTUSB_WIDEBAND_SPEECH },
 605         { USB_DEVICE(0x13d3, 0x3583), .driver_info = BTUSB_MEDIATEK |
 606                                                      BTUSB_WIDEBAND_SPEECH },
 607         { USB_DEVICE(0x13d3, 0x3606), .driver_info = BTUSB_MEDIATEK |
 608                                                      BTUSB_WIDEBAND_SPEECH },
 609
 610         /* MediaTek MT7922 Bluetooth devices */
 611         { USB_DEVICE(0x13d3, 0x3585), .driver_info = BTUSB_MEDIATEK |
 612                                                      BTUSB_WIDEBAND_SPEECH },
 613
 614         /* MediaTek MT7922A Bluetooth devices */
 615         { USB_DEVICE(0x0489, 0xe0d8), .driver_info = BTUSB_MEDIATEK |
 616                                                      BTUSB_WIDEBAND_SPEECH },
 617         { USB_DEVICE(0x0489, 0xe0d9), .driver_info = BTUSB_MEDIATEK |
 618                                                      BTUSB_WIDEBAND_SPEECH },
 619         { USB_DEVICE(0x0489, 0xe0e2), .driver_info = BTUSB_MEDIATEK |
 620                                                      BTUSB_WIDEBAND_SPEECH },
 621         { USB_DEVICE(0x0489, 0xe0e4), .driver_info = BTUSB_MEDIATEK |
 622                                                      BTUSB_WIDEBAND_SPEECH },
 623         { USB_DEVICE(0x0489, 0xe0f1), .driver_info = BTUSB_MEDIATEK |
 624                                                      BTUSB_WIDEBAND_SPEECH },
 625         { USB_DEVICE(0x0489, 0xe0f2), .driver_info = BTUSB_MEDIATEK |
 626                                                      BTUSB_WIDEBAND_SPEECH },
 627         { USB_DEVICE(0x0489, 0xe0f5), .driver_info = BTUSB_MEDIATEK |
 628                                                      BTUSB_WIDEBAND_SPEECH },
 629         { USB_DEVICE(0x0489, 0xe0f6), .driver_info = BTUSB_MEDIATEK |
 630                                                      BTUSB_WIDEBAND_SPEECH },
 631         { USB_DEVICE(0x0489, 0xe102), .driver_info = BTUSB_MEDIATEK |
 632                                                      BTUSB_WIDEBAND_SPEECH },
 633         { USB_DEVICE(0x04ca, 0x3804), .driver_info = BTUSB_MEDIATEK |
 634                                                      BTUSB_WIDEBAND_SPEECH },
 635         { USB_DEVICE(0x04ca, 0x38e4), .driver_info = BTUSB_MEDIATEK |
 636                                                      BTUSB_WIDEBAND_SPEECH },
 637         { USB_DEVICE(0x13d3, 0x3568), .driver_info = BTUSB_MEDIATEK |
 638                                                      BTUSB_WIDEBAND_SPEECH },
 639         { USB_DEVICE(0x13d3, 0x3605), .driver_info = BTUSB_MEDIATEK |
 640                                                      BTUSB_WIDEBAND_SPEECH },
 641         { USB_DEVICE(0x13d3, 0x3607), .driver_info = BTUSB_MEDIATEK |
 642                                                      BTUSB_WIDEBAND_SPEECH },
 643         { USB_DEVICE(0x13d3, 0x3614), .driver_info = BTUSB_MEDIATEK |
 644                                                      BTUSB_WIDEBAND_SPEECH },
 645         { USB_DEVICE(0x13d3, 0x3615), .driver_info = BTUSB_MEDIATEK |
 646                                                      BTUSB_WIDEBAND_SPEECH },
 647         { USB_DEVICE(0x35f5, 0x7922), .driver_info = BTUSB_MEDIATEK |
 648                                                      BTUSB_WIDEBAND_SPEECH },
 649
 650         /* Additional MediaTek MT7925 Bluetooth devices */
 651         { USB_DEVICE(0x0489, 0xe111), .driver_info = BTUSB_MEDIATEK |
 652                                                      BTUSB_WIDEBAND_SPEECH },
 653         { USB_DEVICE(0x0489, 0xe113), .driver_info = BTUSB_MEDIATEK |
 654                                                      BTUSB_WIDEBAND_SPEECH },
 655         { USB_DEVICE(0x0489, 0xe118), .driver_info = BTUSB_MEDIATEK |
 656                                                      BTUSB_WIDEBAND_SPEECH },
 657         { USB_DEVICE(0x0489, 0xe11e), .driver_info = BTUSB_MEDIATEK |
 658                                                      BTUSB_WIDEBAND_SPEECH },
 659         { USB_DEVICE(0x0489, 0xe124), .driver_info = BTUSB_MEDIATEK |
 660                                                      BTUSB_WIDEBAND_SPEECH },
 661         { USB_DEVICE(0x0489, 0xe139), .driver_info = BTUSB_MEDIATEK |
 662                                                      BTUSB_WIDEBAND_SPEECH },
 663         { USB_DEVICE(0x0489, 0xe14f), .driver_info = BTUSB_MEDIATEK |
 664                                                      BTUSB_WIDEBAND_SPEECH },
 665         { USB_DEVICE(0x0489, 0xe150), .driver_info = BTUSB_MEDIATEK |
 666                                                      BTUSB_WIDEBAND_SPEECH },
 667         { USB_DEVICE(0x0489, 0xe151), .driver_info = BTUSB_MEDIATEK |
 668                                                      BTUSB_WIDEBAND_SPEECH },
 669         { USB_DEVICE(0x13d3, 0x3602), .driver_info = BTUSB_MEDIATEK |
 670                                                      BTUSB_WIDEBAND_SPEECH },
 671         { USB_DEVICE(0x13d3, 0x3603), .driver_info = BTUSB_MEDIATEK |
 672                                                      BTUSB_WIDEBAND_SPEECH },
 673         { USB_DEVICE(0x13d3, 0x3604), .driver_info = BTUSB_MEDIATEK |
 674                                                      BTUSB_WIDEBAND_SPEECH },
 675         { USB_DEVICE(0x13d3, 0x3608), .driver_info = BTUSB_MEDIATEK |
 676                                                      BTUSB_WIDEBAND_SPEECH },
 677
 678         /* Additional Realtek 8723AE Bluetooth devices */
 679         { USB_DEVICE(0x0930, 0x021d), .driver_info = BTUSB_REALTEK },
 680         { USB_DEVICE(0x13d3, 0x3394), .driver_info = BTUSB_REALTEK },
 681
 682         /* Additional Realtek 8723BE Bluetooth devices */
 683         { USB_DEVICE(0x0489, 0xe085), .driver_info = BTUSB_REALTEK },
 684         { USB_DEVICE(0x0489, 0xe08b), .driver_info = BTUSB_REALTEK },
 685         { USB_DEVICE(0x04f2, 0xb49f), .driver_info = BTUSB_REALTEK },
 686         { USB_DEVICE(0x13d3, 0x3410), .driver_info = BTUSB_REALTEK },
 687         { USB_DEVICE(0x13d3, 0x3416), .driver_info = BTUSB_REALTEK },
 688         { USB_DEVICE(0x13d3, 0x3459), .driver_info = BTUSB_REALTEK },
 689         { USB_DEVICE(0x13d3, 0x3494), .driver_info = BTUSB_REALTEK },
 690
 691         /* Additional Realtek 8723BU Bluetooth devices */
 692         { USB_DEVICE(0x7392, 0xa611), .driver_info = BTUSB_REALTEK },
 693
 694         /* Additional Realtek 8723DE Bluetooth devices */
 695         { USB_DEVICE(0x0bda, 0xb009), .driver_info = BTUSB_REALTEK },
 696         { USB_DEVICE(0x2ff8, 0xb011), .driver_info = BTUSB_REALTEK },
 697
 698         /* Additional Realtek 8761BUV Bluetooth devices */
 699         { USB_DEVICE(0x2357, 0x0604), .driver_info = BTUSB_REALTEK |
 700                                                      BTUSB_WIDEBAND_SPEECH },
 701         { USB_DEVICE(0x0b05, 0x190e), .driver_info = BTUSB_REALTEK |
 702                                                      BTUSB_WIDEBAND_SPEECH },
 703         { USB_DEVICE(0x2550, 0x8761), .driver_info = BTUSB_REALTEK |
 704                                                      BTUSB_WIDEBAND_SPEECH },
 705         { USB_DEVICE(0x0bda, 0x8771), .driver_info = BTUSB_REALTEK |
 706                                                      BTUSB_WIDEBAND_SPEECH },
 707         { USB_DEVICE(0x6655, 0x8771), .driver_info = BTUSB_REALTEK |
 708                                                      BTUSB_WIDEBAND_SPEECH },
 709         { USB_DEVICE(0x7392, 0xc611), .driver_info = BTUSB_REALTEK |
 710                                                      BTUSB_WIDEBAND_SPEECH },
 711         { USB_DEVICE(0x2b89, 0x8761), .driver_info = BTUSB_REALTEK |
 712                                                      BTUSB_WIDEBAND_SPEECH },
 713
 714         /* Additional Realtek 8821AE Bluetooth devices */
 715         { USB_DEVICE(0x0b05, 0x17dc), .driver_info = BTUSB_REALTEK },
 716         { USB_DEVICE(0x13d3, 0x3414), .driver_info = BTUSB_REALTEK },
 717         { USB_DEVICE(0x13d3, 0x3458), .driver_info = BTUSB_REALTEK },
 718         { USB_DEVICE(0x13d3, 0x3461), .driver_info = BTUSB_REALTEK },
 719         { USB_DEVICE(0x13d3, 0x3462), .driver_info = BTUSB_REALTEK },
 720
 721         /* Additional Realtek 8822BE Bluetooth devices */
 722         { USB_DEVICE(0x13d3, 0x3526), .driver_info = BTUSB_REALTEK },
 723         { USB_DEVICE(0x0b05, 0x185c), .driver_info = BTUSB_REALTEK },
 724
 725         /* Additional Realtek 8822CE Bluetooth devices */
 726         { USB_DEVICE(0x04ca, 0x4005), .driver_info = BTUSB_REALTEK |
 727                                                      BTUSB_WIDEBAND_SPEECH },
 728         { USB_DEVICE(0x04c5, 0x161f), .driver_info = BTUSB_REALTEK |
 729                                                      BTUSB_WIDEBAND_SPEECH },
 730         { USB_DEVICE(0x0b05, 0x18ef), .driver_info = BTUSB_REALTEK |
 731                                                      BTUSB_WIDEBAND_SPEECH },
 732         { USB_DEVICE(0x13d3, 0x3548), .driver_info = BTUSB_REALTEK |
 733                                                      BTUSB_WIDEBAND_SPEECH },
 734         { USB_DEVICE(0x13d3, 0x3549), .driver_info = BTUSB_REALTEK |
 735                                                      BTUSB_WIDEBAND_SPEECH },
 736         { USB_DEVICE(0x13d3, 0x3553), .driver_info = BTUSB_REALTEK |
 737                                                      BTUSB_WIDEBAND_SPEECH },
 738         { USB_DEVICE(0x13d3, 0x3555), .driver_info = BTUSB_REALTEK |
 739                                                      BTUSB_WIDEBAND_SPEECH },
 740         { USB_DEVICE(0x2ff8, 0x3051), .driver_info = BTUSB_REALTEK |
 741                                                      BTUSB_WIDEBAND_SPEECH },
 742         { USB_DEVICE(0x1358, 0xc123), .driver_info = BTUSB_REALTEK |
 743                                                      BTUSB_WIDEBAND_SPEECH },
 744         { USB_DEVICE(0x0bda, 0xc123), .driver_info = BTUSB_REALTEK |
 745                                                      BTUSB_WIDEBAND_SPEECH },
 746         { USB_DEVICE(0x0cb5, 0xc547), .driver_info = BTUSB_REALTEK |
 747                                                      BTUSB_WIDEBAND_SPEECH },
 748
 749         /* Actions Semiconductor ATS2851 based devices */
 750         { USB_DEVICE(0x10d7, 0xb012), .driver_info = BTUSB_ACTIONS_SEMI },
 751
 752         /* Silicon Wave based devices */
 753         { USB_DEVICE(0x0c10, 0x0000), .driver_info = BTUSB_SWAVE },
 754
 755         { }     /* Terminating entry */
 756 };
 757
 758 /* The Bluetooth USB module build into some devices needs to be reset on resume,
 759  * this is a problem with the platform (likely shutting off all power) not with
 760  * the module itself. So we use a DMI list to match known broken platforms.
 761  */
 762 static const struct dmi_system_id btusb_needs_reset_resume_table[] = {
 763         {
 764                 /* Dell OptiPlex 3060 (QCA ROME device 0cf3:e007) */
 765                 .matches = {
 766                         DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
 767                         DMI_MATCH(DMI_PRODUCT_NAME, "OptiPlex 3060"),
 768                 },
 769         },
 770         {
 771                 /* Dell XPS 9360 (QCA ROME device 0cf3:e300) */
 772                 .matches = {
 773                         DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
 774                         DMI_MATCH(DMI_PRODUCT_NAME, "XPS 13 9360"),
 775                 },
 776         },
 777         {
 778                 /* Dell Inspiron 5565 (QCA ROME device 0cf3:e009) */
 779                 .matches = {
 780                         DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
 781                         DMI_MATCH(DMI_PRODUCT_NAME, "Inspiron 5565"),
 782                 },
 783         },
 784         {}
 785 };
 786
 787 struct qca_dump_info {
 788         /* fields for dump collection */
 789         u16 id_vendor;
 790         u16 id_product;
 791         u32 fw_version;
 792         u32 controller_id;
 793         u32 ram_dump_size;
 794         u16 ram_dump_seqno;
 795 };
 796
 797 #define BTUSB_MAX_ISOC_FRAMES   10
 798
 799 #define BTUSB_INTR_RUNNING      0
 800 #define BTUSB_BULK_RUNNING      1
 801 #define BTUSB_ISOC_RUNNING      2
 802 #define BTUSB_SUSPENDING        3
 803 #define BTUSB_DID_ISO_RESUME    4
 804 #define BTUSB_BOOTLOADER        5
 805 #define BTUSB_DOWNLOADING       6
 806 #define BTUSB_FIRMWARE_LOADED   7
 807 #define BTUSB_FIRMWARE_FAILED   8
 808 #define BTUSB_BOOTING           9
 809 #define BTUSB_DIAG_RUNNING      10
 810 #define BTUSB_OOB_WAKE_ENABLED  11
 811 #define BTUSB_HW_RESET_ACTIVE   12
 812 #define BTUSB_TX_WAIT_VND_EVT   13
 813 #define BTUSB_WAKEUP_AUTOSUSPEND        14
 814 #define BTUSB_USE_ALT3_FOR_WBS  15
 815 #define BTUSB_ALT6_CONTINUOUS_TX        16
 816 #define BTUSB_HW_SSR_ACTIVE     17
 817
 818 struct btusb_data {
 819         struct hci_dev       *hdev;
 820         struct usb_device    *udev;
 821         struct usb_interface *intf;
 822         struct usb_interface *isoc;
 823         struct usb_interface *diag;
 824         unsigned isoc_ifnum;
 825
 826         unsigned long flags;
 827
 828         bool poll_sync;
 829         int intr_interval;
 830         struct work_struct  work;
 831         struct work_struct  waker;
 832         struct delayed_work rx_work;
 833
 834         struct sk_buff_head acl_q;
 835
 836         struct usb_anchor deferred;
 837         struct usb_anchor tx_anchor;
 838         int tx_in_flight;
 839         spinlock_t txlock;
 840
 841         struct usb_anchor intr_anchor;
 842         struct usb_anchor bulk_anchor;
 843         struct usb_anchor isoc_anchor;
 844         struct usb_anchor diag_anchor;
 845         struct usb_anchor ctrl_anchor;
 846         spinlock_t rxlock;
 847
 848         struct sk_buff *evt_skb;
 849         struct sk_buff *acl_skb;
 850         struct sk_buff *sco_skb;
 851
 852         struct usb_endpoint_descriptor *intr_ep;
 853         struct usb_endpoint_descriptor *bulk_tx_ep;
 854         struct usb_endpoint_descriptor *bulk_rx_ep;
 855         struct usb_endpoint_descriptor *isoc_tx_ep;
 856         struct usb_endpoint_descriptor *isoc_rx_ep;
 857         struct usb_endpoint_descriptor *diag_tx_ep;
 858         struct usb_endpoint_descriptor *diag_rx_ep;
 859
 860         struct gpio_desc *reset_gpio;
 861
 862         __u8 cmdreq_type;
 863         __u8 cmdreq;
 864
 865         unsigned int sco_num;
 866         unsigned int air_mode;
 867         bool usb_alt6_packet_flow;
 868         int isoc_altsetting;
 869         int suspend_count;
 870
 871         int (*recv_event)(struct hci_dev *hdev, struct sk_buff *skb);
 872         int (*recv_acl)(struct hci_dev *hdev, struct sk_buff *skb);
 873         int (*recv_bulk)(struct btusb_data *data, void *buffer, int count);
 874
 875         int (*setup_on_usb)(struct hci_dev *hdev);
 876
 877         int (*suspend)(struct hci_dev *hdev);
 878         int (*resume)(struct hci_dev *hdev);
 879         int (*disconnect)(struct hci_dev *hdev);
 880
 881         int oob_wake_irq;   /* irq for out-of-band wake-on-bt */
 882         unsigned cmd_timeout_cnt;
 883
 884         struct qca_dump_info qca_dump;
 885 };
 886
 887 static void btusb_reset(struct hci_dev *hdev)
 888 {
 889         struct btusb_data *data;
 890         int err;
 891
 892         if (hdev->reset) {
 893                 hdev->reset(hdev);
 894                 return;
 895         }
 896
 897         data = hci_get_drvdata(hdev);
 898         /* This is not an unbalanced PM reference since the device will reset */
 899         err = usb_autopm_get_interface(data->intf);
 900         if (err) {
 901                 bt_dev_err(hdev, "Failed usb_autopm_get_interface: %d", err);
 902                 return;
 903         }
 904
 905         bt_dev_err(hdev, "Resetting usb device.");
 906         usb_queue_reset_device(data->intf);
 907 }
 908
 909 static void btusb_intel_cmd_timeout(struct hci_dev *hdev)
 910 {
 911         struct btusb_data *data = hci_get_drvdata(hdev);
 912         struct gpio_desc *reset_gpio = data->reset_gpio;
 913         struct btintel_data *intel_data = hci_get_priv(hdev);
 914
 915         if (++data->cmd_timeout_cnt < 5)
 916                 return;
 917
 918         if (intel_data->acpi_reset_method) {
 919                 if (test_and_set_bit(INTEL_ACPI_RESET_ACTIVE, intel_data->flags)) {
 920                         bt_dev_err(hdev, "acpi: last reset failed ? Not resetting again");
 921                         return;
 922                 }
 923
 924                 bt_dev_err(hdev, "Initiating acpi reset method");
 925                 /* If ACPI reset method fails, lets try with legacy GPIO
 926                  * toggling
 927                  */
 928                 if (!intel_data->acpi_reset_method(hdev)) {
 929                         return;
 930                 }
 931         }
 932
 933         if (!reset_gpio) {
 934                 btusb_reset(hdev);
 935                 return;
 936         }
 937
 938         /*
 939          * Toggle the hard reset line if the platform provides one. The reset
 940          * is going to yank the device off the USB and then replug. So doing
 941          * once is enough. The cleanup is handled correctly on the way out
 942          * (standard USB disconnect), and the new device is detected cleanly
 943          * and bound to the driver again like it should be.
 944          */
 945         if (test_and_set_bit(BTUSB_HW_RESET_ACTIVE, &data->flags)) {
 946                 bt_dev_err(hdev, "last reset failed? Not resetting again");
 947                 return;
 948         }
 949
 950         bt_dev_err(hdev, "Initiating HW reset via gpio");
 951         gpiod_set_value_cansleep(reset_gpio, 1);
 952         msleep(100);
 953         gpiod_set_value_cansleep(reset_gpio, 0);
 954 }
 955
 956 #define RTK_DEVCOREDUMP_CODE_MEMDUMP            0x01
 957 #define RTK_DEVCOREDUMP_CODE_HW_ERR             0x02
 958 #define RTK_DEVCOREDUMP_CODE_CMD_TIMEOUT        0x03
 959
 960 #define RTK_SUB_EVENT_CODE_COREDUMP             0x34
 961
 962 struct rtk_dev_coredump_hdr {
 963         u8 type;
 964         u8 code;
 965         u8 reserved[2];
 966 } __packed;
 967
 968 static inline void btusb_rtl_alloc_devcoredump(struct hci_dev *hdev,
 969                 struct rtk_dev_coredump_hdr *hdr, u8 *buf, u32 len)
 970 {
 971         struct sk_buff *skb;
 972
 973         skb = alloc_skb(len + sizeof(*hdr), GFP_ATOMIC);
 974         if (!skb)
 975                 return;
 976
 977         skb_put_data(skb, hdr, sizeof(*hdr));
 978         if (len)
 979                 skb_put_data(skb, buf, len);
 980
 981         if (!hci_devcd_init(hdev, skb->len)) {
 982                 hci_devcd_append(hdev, skb);
 983                 hci_devcd_complete(hdev);
 984         } else {
 985                 bt_dev_err(hdev, "RTL: Failed to generate devcoredump");
 986                 kfree_skb(skb);
 987         }
 988 }
 989
 990 static void btusb_rtl_cmd_timeout(struct hci_dev *hdev)
 991 {
 992         struct btusb_data *data = hci_get_drvdata(hdev);
 993         struct gpio_desc *reset_gpio = data->reset_gpio;
 994         struct rtk_dev_coredump_hdr hdr = {
 995                 .type = RTK_DEVCOREDUMP_CODE_CMD_TIMEOUT,
 996         };
 997
 998         btusb_rtl_alloc_devcoredump(hdev, &hdr, NULL, 0);
 999
1000         if (++data->cmd_timeout_cnt < 5)
1001                 return;
1002
1003         if (!reset_gpio) {
1004                 btusb_reset(hdev);
1005                 return;
1006         }
1007
1008         /* Toggle the hard reset line. The Realtek device is going to
1009          * yank itself off the USB and then replug. The cleanup is handled
1010          * correctly on the way out (standard USB disconnect), and the new
1011          * device is detected cleanly and bound to the driver again like
1012          * it should be.
1013          */
1014         if (test_and_set_bit(BTUSB_HW_RESET_ACTIVE, &data->flags)) {
1015                 bt_dev_err(hdev, "last reset failed? Not resetting again");
1016                 return;
1017         }
1018
1019         bt_dev_err(hdev, "Reset Realtek device via gpio");
1020         gpiod_set_value_cansleep(reset_gpio, 1);
1021         msleep(200);
1022         gpiod_set_value_cansleep(reset_gpio, 0);
1023 }
1024
1025 static void btusb_rtl_hw_error(struct hci_dev *hdev, u8 code)
1026 {
1027         struct rtk_dev_coredump_hdr hdr = {
1028                 .type = RTK_DEVCOREDUMP_CODE_HW_ERR,
1029                 .code = code,
1030         };
1031
1032         bt_dev_err(hdev, "RTL: hw err, trigger devcoredump (%d)", code);
1033
1034         btusb_rtl_alloc_devcoredump(hdev, &hdr, NULL, 0);
1035 }
1036
1037 static void btusb_qca_cmd_timeout(struct hci_dev *hdev)
1038 {
1039         struct btusb_data *data = hci_get_drvdata(hdev);
1040         struct gpio_desc *reset_gpio = data->reset_gpio;
1041
1042         if (test_bit(BTUSB_HW_SSR_ACTIVE, &data->flags)) {
1043                 bt_dev_info(hdev, "Ramdump in progress, defer cmd_timeout");
1044                 return;
1045         }
1046
1047         if (++data->cmd_timeout_cnt < 5)
1048                 return;
1049
1050         if (reset_gpio) {
1051                 bt_dev_err(hdev, "Reset qca device via bt_en gpio");
1052
1053                 /* Toggle the hard reset line. The qca bt device is going to
1054                  * yank itself off the USB and then replug. The cleanup is handled
1055                  * correctly on the way out (standard USB disconnect), and the new
1056                  * device is detected cleanly and bound to the driver again like
1057                  * it should be.
1058                  */
1059                 if (test_and_set_bit(BTUSB_HW_RESET_ACTIVE, &data->flags)) {
1060                         bt_dev_err(hdev, "last reset failed? Not resetting again");
1061                         return;
1062                 }
1063
1064                 gpiod_set_value_cansleep(reset_gpio, 0);
1065                 msleep(200);
1066                 gpiod_set_value_cansleep(reset_gpio, 1);
1067
1068                 return;
1069         }
1070
1071         btusb_reset(hdev);
1072 }
1073
1074 static inline void btusb_free_frags(struct btusb_data *data)
1075 {
1076         unsigned long flags;
1077
1078         spin_lock_irqsave(&data->rxlock, flags);
1079
1080         dev_kfree_skb_irq(data->evt_skb);
1081         data->evt_skb = NULL;
1082
1083         dev_kfree_skb_irq(data->acl_skb);
1084         data->acl_skb = NULL;
1085
1086         dev_kfree_skb_irq(data->sco_skb);
1087         data->sco_skb = NULL;
1088
1089         spin_unlock_irqrestore(&data->rxlock, flags);
1090 }
1091
1092 static int btusb_recv_event(struct btusb_data *data, struct sk_buff *skb)
1093 {
1094         if (data->intr_interval) {
1095                 /* Trigger dequeue immediately if an event is received */
1096                 schedule_delayed_work(&data->rx_work, 0);
1097         }
1098
1099         return data->recv_event(data->hdev, skb);
1100 }
1101
1102 static int btusb_recv_intr(struct btusb_data *data, void *buffer, int count)
1103 {
1104         struct sk_buff *skb;
1105         unsigned long flags;
1106         int err = 0;
1107
1108         spin_lock_irqsave(&data->rxlock, flags);
1109         skb = data->evt_skb;
1110
1111         while (count) {
1112                 int len;
1113
1114                 if (!skb) {
1115                         skb = bt_skb_alloc(HCI_MAX_EVENT_SIZE, GFP_ATOMIC);
1116                         if (!skb) {
1117                                 err = -ENOMEM;
1118                                 break;
1119                         }
1120
1121                         hci_skb_pkt_type(skb) = HCI_EVENT_PKT;
1122                         hci_skb_expect(skb) = HCI_EVENT_HDR_SIZE;
1123                 }
1124
1125                 len = min_t(uint, hci_skb_expect(skb), count);
1126                 skb_put_data(skb, buffer, len);
1127
1128                 count -= len;
1129                 buffer += len;
1130                 hci_skb_expect(skb) -= len;
1131
1132                 if (skb->len == HCI_EVENT_HDR_SIZE) {
1133                         /* Complete event header */
1134                         hci_skb_expect(skb) = hci_event_hdr(skb)->plen;
1135
1136                         if (skb_tailroom(skb) < hci_skb_expect(skb)) {
1137                                 kfree_skb(skb);
1138                                 skb = NULL;
1139
1140                                 err = -EILSEQ;
1141                                 break;
1142                         }
1143                 }
1144
1145                 if (!hci_skb_expect(skb)) {
1146                         /* Complete frame */
1147                         btusb_recv_event(data, skb);
1148                         skb = NULL;
1149                 }
1150         }
1151
1152         data->evt_skb = skb;
1153         spin_unlock_irqrestore(&data->rxlock, flags);
1154
1155         return err;
1156 }
1157
1158 static int btusb_recv_acl(struct btusb_data *data, struct sk_buff *skb)
1159 {
1160         /* Only queue ACL packet if intr_interval is set as it means
1161          * force_poll_sync has been enabled.
1162          */
1163         if (!data->intr_interval)
1164                 return data->recv_acl(data->hdev, skb);
1165
1166         skb_queue_tail(&data->acl_q, skb);
1167         schedule_delayed_work(&data->rx_work, data->intr_interval);
1168
1169         return 0;
1170 }
1171
1172 static int btusb_recv_bulk(struct btusb_data *data, void *buffer, int count)
1173 {
1174         struct sk_buff *skb;
1175         unsigned long flags;
1176         int err = 0;
1177
1178         spin_lock_irqsave(&data->rxlock, flags);
1179         skb = data->acl_skb;
1180
1181         while (count) {
1182                 int len;
1183
1184                 if (!skb) {
1185                         skb = bt_skb_alloc(HCI_MAX_FRAME_SIZE, GFP_ATOMIC);
1186                         if (!skb) {
1187                                 err = -ENOMEM;
1188                                 break;
1189                         }
1190
1191                         hci_skb_pkt_type(skb) = HCI_ACLDATA_PKT;
1192                         hci_skb_expect(skb) = HCI_ACL_HDR_SIZE;
1193                 }
1194
1195                 len = min_t(uint, hci_skb_expect(skb), count);
1196                 skb_put_data(skb, buffer, len);
1197
1198                 count -= len;
1199                 buffer += len;
1200                 hci_skb_expect(skb) -= len;
1201
1202                 if (skb->len == HCI_ACL_HDR_SIZE) {
1203                         __le16 dlen = hci_acl_hdr(skb)->dlen;
1204
1205                         /* Complete ACL header */
1206                         hci_skb_expect(skb) = __le16_to_cpu(dlen);
1207
1208                         if (skb_tailroom(skb) < hci_skb_expect(skb)) {
1209                                 kfree_skb(skb);
1210                                 skb = NULL;
1211
1212                                 err = -EILSEQ;
1213                                 break;
1214                         }
1215                 }
1216
1217                 if (!hci_skb_expect(skb)) {
1218                         /* Complete frame */
1219                         btusb_recv_acl(data, skb);
1220                         skb = NULL;
1221                 }
1222         }
1223
1224         data->acl_skb = skb;
1225         spin_unlock_irqrestore(&data->rxlock, flags);
1226
1227         return err;
1228 }
1229
1230 static bool btusb_validate_sco_handle(struct hci_dev *hdev,
1231                                       struct hci_sco_hdr *hdr)
1232 {
1233         __u16 handle;
1234
1235         if (hci_dev_test_flag(hdev, HCI_USER_CHANNEL))
1236                 // Can't validate, userspace controls everything.
1237                 return true;
1238
1239         /*
1240          * USB isochronous transfers are not designed to be reliable and may
1241          * lose fragments.  When this happens, the next first fragment
1242          * encountered might actually be a continuation fragment.
1243          * Validate the handle to detect it and drop it, or else the upper
1244          * layer will get garbage for a while.
1245          */
1246
1247         handle = hci_handle(__le16_to_cpu(hdr->handle));
1248
1249         switch (hci_conn_lookup_type(hdev, handle)) {
1250         case SCO_LINK:
1251         case ESCO_LINK:
1252                 return true;
1253         default:
1254                 return false;
1255         }
1256 }
1257
1258 static int btusb_recv_isoc(struct btusb_data *data, void *buffer, int count)
1259 {
1260         struct sk_buff *skb;
1261         unsigned long flags;
1262         int err = 0;
1263
1264         spin_lock_irqsave(&data->rxlock, flags);
1265         skb = data->sco_skb;
1266
1267         while (count) {
1268                 int len;
1269
1270                 if (!skb) {
1271                         skb = bt_skb_alloc(HCI_MAX_SCO_SIZE, GFP_ATOMIC);
1272                         if (!skb) {
1273                                 err = -ENOMEM;
1274                                 break;
1275                         }
1276
1277                         hci_skb_pkt_type(skb) = HCI_SCODATA_PKT;
1278                         hci_skb_expect(skb) = HCI_SCO_HDR_SIZE;
1279                 }
1280
1281                 len = min_t(uint, hci_skb_expect(skb), count);
1282                 skb_put_data(skb, buffer, len);
1283
1284                 count -= len;
1285                 buffer += len;
1286                 hci_skb_expect(skb) -= len;
1287
1288                 if (skb->len == HCI_SCO_HDR_SIZE) {
1289                         /* Complete SCO header */
1290                         struct hci_sco_hdr *hdr = hci_sco_hdr(skb);
1291
1292                         hci_skb_expect(skb) = hdr->dlen;
1293
1294                         if (skb_tailroom(skb) < hci_skb_expect(skb) ||
1295                             !btusb_validate_sco_handle(data->hdev, hdr)) {
1296                                 kfree_skb(skb);
1297                                 skb = NULL;
1298
1299                                 err = -EILSEQ;
1300                                 break;
1301                         }
1302                 }
1303
1304                 if (!hci_skb_expect(skb)) {
1305                         /* Complete frame */
1306                         hci_recv_frame(data->hdev, skb);
1307                         skb = NULL;
1308                 }
1309         }
1310
1311         data->sco_skb = skb;
1312         spin_unlock_irqrestore(&data->rxlock, flags);
1313
1314         return err;
1315 }
1316
1317 static void btusb_intr_complete(struct urb *urb)
1318 {
1319         struct hci_dev *hdev = urb->context;
1320         struct btusb_data *data = hci_get_drvdata(hdev);
1321         int err;
1322
1323         BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
1324                urb->actual_length);
1325
1326         if (!test_bit(HCI_RUNNING, &hdev->flags))
1327                 return;
1328
1329         if (urb->status == 0) {
1330                 hdev->stat.byte_rx += urb->actual_length;
1331
1332                 if (btusb_recv_intr(data, urb->transfer_buffer,
1333                                     urb->actual_length) < 0) {
1334                         bt_dev_err(hdev, "corrupted event packet");
1335                         hdev->stat.err_rx++;
1336                 }
1337         } else if (urb->status == -ENOENT) {
1338                 /* Avoid suspend failed when usb_kill_urb */
1339                 return;
1340         }
1341
1342         if (!test_bit(BTUSB_INTR_RUNNING, &data->flags))
1343                 return;
1344
1345         usb_mark_last_busy(data->udev);
1346         usb_anchor_urb(urb, &data->intr_anchor);
1347
1348         err = usb_submit_urb(urb, GFP_ATOMIC);
1349         if (err < 0) {
1350                 /* -EPERM: urb is being killed;
1351                  * -ENODEV: device got disconnected
1352                  */
1353                 if (err != -EPERM && err != -ENODEV)
1354                         bt_dev_err(hdev, "urb %p failed to resubmit (%d)",
1355                                    urb, -err);
1356                 if (err != -EPERM)
1357                         hci_cmd_sync_cancel(hdev, -err);
1358                 usb_unanchor_urb(urb);
1359         }
1360 }
1361
1362 static int btusb_submit_intr_urb(struct hci_dev *hdev, gfp_t mem_flags)
1363 {
1364         struct btusb_data *data = hci_get_drvdata(hdev);
1365         struct urb *urb;
1366         unsigned char *buf;
1367         unsigned int pipe;
1368         int err, size;
1369
1370         BT_DBG("%s", hdev->name);
1371
1372         if (!data->intr_ep)
1373                 return -ENODEV;
1374
1375         urb = usb_alloc_urb(0, mem_flags);
1376         if (!urb)
1377                 return -ENOMEM;
1378
1379         if (le16_to_cpu(data->udev->descriptor.idVendor)  == 0x0a12 &&
1380             le16_to_cpu(data->udev->descriptor.idProduct) == 0x0001)
1381                 /* Fake CSR devices don't seem to support sort-transter */
1382                 size = le16_to_cpu(data->intr_ep->wMaxPacketSize);
1383         else
1384                 /* Use maximum HCI Event size so the USB stack handles
1385                  * ZPL/short-transfer automatically.
1386                  */
1387                 size = HCI_MAX_EVENT_SIZE;
1388
1389         buf = kmalloc(size, mem_flags);
1390         if (!buf) {
1391                 usb_free_urb(urb);
1392                 return -ENOMEM;
1393         }
1394
1395         pipe = usb_rcvintpipe(data->udev, data->intr_ep->bEndpointAddress);
1396
1397         usb_fill_int_urb(urb, data->udev, pipe, buf, size,
1398                          btusb_intr_complete, hdev, data->intr_ep->bInterval);
1399
1400         urb->transfer_flags |= URB_FREE_BUFFER;
1401
1402         usb_anchor_urb(urb, &data->intr_anchor);
1403
1404         err = usb_submit_urb(urb, mem_flags);
1405         if (err < 0) {
1406                 if (err != -EPERM && err != -ENODEV)
1407                         bt_dev_err(hdev, "urb %p submission failed (%d)",
1408                                    urb, -err);
1409                 if (err != -EPERM)
1410                         hci_cmd_sync_cancel(hdev, -err);
1411                 usb_unanchor_urb(urb);
1412         }
1413
1414         /* Only initialize intr_interval if URB poll sync is enabled */
1415         if (!data->poll_sync)
1416                 goto done;
1417
1418         /* The units are frames (milliseconds) for full and low speed devices,
1419          * and microframes (1/8 millisecond) for highspeed and SuperSpeed
1420          * devices.
1421          *
1422          * This is done once on open/resume so it shouldn't change even if
1423          * force_poll_sync changes.
1424          */
1425         switch (urb->dev->speed) {
1426         case USB_SPEED_SUPER_PLUS:
1427         case USB_SPEED_SUPER:   /* units are 125us */
1428                 data->intr_interval = usecs_to_jiffies(urb->interval * 125);
1429                 break;
1430         default:
1431                 data->intr_interval = msecs_to_jiffies(urb->interval);
1432                 break;
1433         }
1434
1435 done:
1436         usb_free_urb(urb);
1437
1438         return err;
1439 }
1440
1441 static void btusb_bulk_complete(struct urb *urb)
1442 {
1443         struct hci_dev *hdev = urb->context;
1444         struct btusb_data *data = hci_get_drvdata(hdev);
1445         int err;
1446
1447         BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
1448                urb->actual_length);
1449
1450         if (!test_bit(HCI_RUNNING, &hdev->flags))
1451                 return;
1452
1453         if (urb->status == 0) {
1454                 hdev->stat.byte_rx += urb->actual_length;
1455
1456                 if (data->recv_bulk(data, urb->transfer_buffer,
1457                                     urb->actual_length) < 0) {
1458                         bt_dev_err(hdev, "corrupted ACL packet");
1459                         hdev->stat.err_rx++;
1460                 }
1461         } else if (urb->status == -ENOENT) {
1462                 /* Avoid suspend failed when usb_kill_urb */
1463                 return;
1464         }
1465
1466         if (!test_bit(BTUSB_BULK_RUNNING, &data->flags))
1467                 return;
1468
1469         usb_anchor_urb(urb, &data->bulk_anchor);
1470         usb_mark_last_busy(data->udev);
1471
1472         err = usb_submit_urb(urb, GFP_ATOMIC);
1473         if (err < 0) {
1474                 /* -EPERM: urb is being killed;
1475                  * -ENODEV: device got disconnected
1476                  */
1477                 if (err != -EPERM && err != -ENODEV)
1478                         bt_dev_err(hdev, "urb %p failed to resubmit (%d)",
1479                                    urb, -err);
1480                 usb_unanchor_urb(urb);
1481         }
1482 }
1483
1484 static int btusb_submit_bulk_urb(struct hci_dev *hdev, gfp_t mem_flags)
1485 {
1486         struct btusb_data *data = hci_get_drvdata(hdev);
1487         struct urb *urb;
1488         unsigned char *buf;
1489         unsigned int pipe;
1490         int err, size = HCI_MAX_FRAME_SIZE;
1491
1492         BT_DBG("%s", hdev->name);
1493
1494         if (!data->bulk_rx_ep)
1495                 return -ENODEV;
1496
1497         urb = usb_alloc_urb(0, mem_flags);
1498         if (!urb)
1499                 return -ENOMEM;
1500
1501         buf = kmalloc(size, mem_flags);
1502         if (!buf) {
1503                 usb_free_urb(urb);
1504                 return -ENOMEM;
1505         }
1506
1507         pipe = usb_rcvbulkpipe(data->udev, data->bulk_rx_ep->bEndpointAddress);
1508
1509         usb_fill_bulk_urb(urb, data->udev, pipe, buf, size,
1510                           btusb_bulk_complete, hdev);
1511
1512         urb->transfer_flags |= URB_FREE_BUFFER;
1513
1514         usb_mark_last_busy(data->udev);
1515         usb_anchor_urb(urb, &data->bulk_anchor);
1516
1517         err = usb_submit_urb(urb, mem_flags);
1518         if (err < 0) {
1519                 if (err != -EPERM && err != -ENODEV)
1520                         bt_dev_err(hdev, "urb %p submission failed (%d)",
1521                                    urb, -err);
1522                 usb_unanchor_urb(urb);
1523         }
1524
1525         usb_free_urb(urb);
1526
1527         return err;
1528 }
1529
1530 static void btusb_isoc_complete(struct urb *urb)
1531 {
1532         struct hci_dev *hdev = urb->context;
1533         struct btusb_data *data = hci_get_drvdata(hdev);
1534         int i, err;
1535
1536         BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
1537                urb->actual_length);
1538
1539         if (!test_bit(HCI_RUNNING, &hdev->flags))
1540                 return;
1541
1542         if (urb->status == 0) {
1543                 for (i = 0; i < urb->number_of_packets; i++) {
1544                         unsigned int offset = urb->iso_frame_desc[i].offset;
1545                         unsigned int length = urb->iso_frame_desc[i].actual_length;
1546
1547                         if (urb->iso_frame_desc[i].status)
1548                                 continue;
1549
1550                         hdev->stat.byte_rx += length;
1551
1552                         if (btusb_recv_isoc(data, urb->transfer_buffer + offset,
1553                                             length) < 0) {
1554                                 bt_dev_err(hdev, "corrupted SCO packet");
1555                                 hdev->stat.err_rx++;
1556                         }
1557                 }
1558         } else if (urb->status == -ENOENT) {
1559                 /* Avoid suspend failed when usb_kill_urb */
1560                 return;
1561         }
1562
1563         if (!test_bit(BTUSB_ISOC_RUNNING, &data->flags))
1564                 return;
1565
1566         usb_anchor_urb(urb, &data->isoc_anchor);
1567
1568         err = usb_submit_urb(urb, GFP_ATOMIC);
1569         if (err < 0) {
1570                 /* -EPERM: urb is being killed;
1571                  * -ENODEV: device got disconnected
1572                  */
1573                 if (err != -EPERM && err != -ENODEV)
1574                         bt_dev_err(hdev, "urb %p failed to resubmit (%d)",
1575                                    urb, -err);
1576                 usb_unanchor_urb(urb);
1577         }
1578 }
1579
1580 static inline void __fill_isoc_descriptor_msbc(struct urb *urb, int len,
1581                                                int mtu, struct btusb_data *data)
1582 {
1583         int i = 0, offset = 0;
1584         unsigned int interval;
1585
1586         BT_DBG("len %d mtu %d", len, mtu);
1587
1588         /* For mSBC ALT 6 settings some chips need to transmit the data
1589          * continuously without the zero length of USB packets.
1590          */
1591         if (test_bit(BTUSB_ALT6_CONTINUOUS_TX, &data->flags))
1592                 goto ignore_usb_alt6_packet_flow;
1593
1594         /* For mSBC ALT 6 setting the host will send the packet at continuous
1595          * flow. As per core spec 5, vol 4, part B, table 2.1. For ALT setting
1596          * 6 the HCI PACKET INTERVAL should be 7.5ms for every usb packets.
1597          * To maintain the rate we send 63bytes of usb packets alternatively for
1598          * 7ms and 8ms to maintain the rate as 7.5ms.
1599          */
1600         if (data->usb_alt6_packet_flow) {
1601                 interval = 7;
1602                 data->usb_alt6_packet_flow = false;
1603         } else {
1604                 interval = 6;
1605                 data->usb_alt6_packet_flow = true;
1606         }
1607
1608         for (i = 0; i < interval; i++) {
1609                 urb->iso_frame_desc[i].offset = offset;
1610                 urb->iso_frame_desc[i].length = offset;
1611         }
1612
1613 ignore_usb_alt6_packet_flow:
1614         if (len && i < BTUSB_MAX_ISOC_FRAMES) {
1615                 urb->iso_frame_desc[i].offset = offset;
1616                 urb->iso_frame_desc[i].length = len;
1617                 i++;
1618         }
1619
1620         urb->number_of_packets = i;
1621 }
1622
1623 static inline void __fill_isoc_descriptor(struct urb *urb, int len, int mtu)
1624 {
1625         int i, offset = 0;
1626
1627         BT_DBG("len %d mtu %d", len, mtu);
1628
1629         for (i = 0; i < BTUSB_MAX_ISOC_FRAMES && len >= mtu;
1630                                         i++, offset += mtu, len -= mtu) {
1631                 urb->iso_frame_desc[i].offset = offset;
1632                 urb->iso_frame_desc[i].length = mtu;
1633         }
1634
1635         if (len && i < BTUSB_MAX_ISOC_FRAMES) {
1636                 urb->iso_frame_desc[i].offset = offset;
1637                 urb->iso_frame_desc[i].length = len;
1638                 i++;
1639         }
1640
1641         urb->number_of_packets = i;
1642 }
1643
1644 static int btusb_submit_isoc_urb(struct hci_dev *hdev, gfp_t mem_flags)
1645 {
1646         struct btusb_data *data = hci_get_drvdata(hdev);
1647         struct urb *urb;
1648         unsigned char *buf;
1649         unsigned int pipe;
1650         int err, size;
1651
1652         BT_DBG("%s", hdev->name);
1653
1654         if (!data->isoc_rx_ep)
1655                 return -ENODEV;
1656
1657         urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, mem_flags);
1658         if (!urb)
1659                 return -ENOMEM;
1660
1661         size = le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize) *
1662                                                 BTUSB_MAX_ISOC_FRAMES;
1663
1664         buf = kmalloc(size, mem_flags);
1665         if (!buf) {
1666                 usb_free_urb(urb);
1667                 return -ENOMEM;
1668         }
1669
1670         pipe = usb_rcvisocpipe(data->udev, data->isoc_rx_ep->bEndpointAddress);
1671
1672         usb_fill_int_urb(urb, data->udev, pipe, buf, size, btusb_isoc_complete,
1673                          hdev, data->isoc_rx_ep->bInterval);
1674
1675         urb->transfer_flags = URB_FREE_BUFFER | URB_ISO_ASAP;
1676
1677         __fill_isoc_descriptor(urb, size,
1678                                le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize));
1679
1680         usb_anchor_urb(urb, &data->isoc_anchor);
1681
1682         err = usb_submit_urb(urb, mem_flags);
1683         if (err < 0) {
1684                 if (err != -EPERM && err != -ENODEV)
1685                         bt_dev_err(hdev, "urb %p submission failed (%d)",
1686                                    urb, -err);
1687                 usb_unanchor_urb(urb);
1688         }
1689
1690         usb_free_urb(urb);
1691
1692         return err;
1693 }
1694
1695 static void btusb_diag_complete(struct urb *urb)
1696 {
1697         struct hci_dev *hdev = urb->context;
1698         struct btusb_data *data = hci_get_drvdata(hdev);
1699         int err;
1700
1701         BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
1702                urb->actual_length);
1703
1704         if (urb->status == 0) {
1705                 struct sk_buff *skb;
1706
1707                 skb = bt_skb_alloc(urb->actual_length, GFP_ATOMIC);
1708                 if (skb) {
1709                         skb_put_data(skb, urb->transfer_buffer,
1710                                      urb->actual_length);
1711                         hci_recv_diag(hdev, skb);
1712                 }
1713         } else if (urb->status == -ENOENT) {
1714                 /* Avoid suspend failed when usb_kill_urb */
1715                 return;
1716         }
1717
1718         if (!test_bit(BTUSB_DIAG_RUNNING, &data->flags))
1719                 return;
1720
1721         usb_anchor_urb(urb, &data->diag_anchor);
1722         usb_mark_last_busy(data->udev);
1723
1724         err = usb_submit_urb(urb, GFP_ATOMIC);
1725         if (err < 0) {
1726                 /* -EPERM: urb is being killed;
1727                  * -ENODEV: device got disconnected
1728                  */
1729                 if (err != -EPERM && err != -ENODEV)
1730                         bt_dev_err(hdev, "urb %p failed to resubmit (%d)",
1731                                    urb, -err);
1732                 usb_unanchor_urb(urb);
1733         }
1734 }
1735
1736 static int btusb_submit_diag_urb(struct hci_dev *hdev, gfp_t mem_flags)
1737 {
1738         struct btusb_data *data = hci_get_drvdata(hdev);
1739         struct urb *urb;
1740         unsigned char *buf;
1741         unsigned int pipe;
1742         int err, size = HCI_MAX_FRAME_SIZE;
1743
1744         BT_DBG("%s", hdev->name);
1745
1746         if (!data->diag_rx_ep)
1747                 return -ENODEV;
1748
1749         urb = usb_alloc_urb(0, mem_flags);
1750         if (!urb)
1751                 return -ENOMEM;
1752
1753         buf = kmalloc(size, mem_flags);
1754         if (!buf) {
1755                 usb_free_urb(urb);
1756                 return -ENOMEM;
1757         }
1758
1759         pipe = usb_rcvbulkpipe(data->udev, data->diag_rx_ep->bEndpointAddress);
1760
1761         usb_fill_bulk_urb(urb, data->udev, pipe, buf, size,
1762                           btusb_diag_complete, hdev);
1763
1764         urb->transfer_flags |= URB_FREE_BUFFER;
1765
1766         usb_mark_last_busy(data->udev);
1767         usb_anchor_urb(urb, &data->diag_anchor);
1768
1769         err = usb_submit_urb(urb, mem_flags);
1770         if (err < 0) {
1771                 if (err != -EPERM && err != -ENODEV)
1772                         bt_dev_err(hdev, "urb %p submission failed (%d)",
1773                                    urb, -err);
1774                 usb_unanchor_urb(urb);
1775         }
1776
1777         usb_free_urb(urb);
1778
1779         return err;
1780 }
1781
1782 static void btusb_tx_complete(struct urb *urb)
1783 {
1784         struct sk_buff *skb = urb->context;
1785         struct hci_dev *hdev = (struct hci_dev *)skb->dev;
1786         struct btusb_data *data = hci_get_drvdata(hdev);
1787         unsigned long flags;
1788
1789         BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
1790                urb->actual_length);
1791
1792         if (!test_bit(HCI_RUNNING, &hdev->flags))
1793                 goto done;
1794
1795         if (!urb->status) {
1796                 hdev->stat.byte_tx += urb->transfer_buffer_length;
1797         } else {
1798                 if (hci_skb_pkt_type(skb) == HCI_COMMAND_PKT)
1799                         hci_cmd_sync_cancel(hdev, -urb->status);
1800                 hdev->stat.err_tx++;
1801         }
1802
1803 done:
1804         spin_lock_irqsave(&data->txlock, flags);
1805         data->tx_in_flight--;
1806         spin_unlock_irqrestore(&data->txlock, flags);
1807
1808         kfree(urb->setup_packet);
1809
1810         kfree_skb(skb);
1811 }
1812
1813 static void btusb_isoc_tx_complete(struct urb *urb)
1814 {
1815         struct sk_buff *skb = urb->context;
1816         struct hci_dev *hdev = (struct hci_dev *)skb->dev;
1817
1818         BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
1819                urb->actual_length);
1820
1821         if (!test_bit(HCI_RUNNING, &hdev->flags))
1822                 goto done;
1823
1824         if (!urb->status)
1825                 hdev->stat.byte_tx += urb->transfer_buffer_length;
1826         else
1827                 hdev->stat.err_tx++;
1828
1829 done:
1830         kfree(urb->setup_packet);
1831
1832         kfree_skb(skb);
1833 }
1834
1835 static int btusb_open(struct hci_dev *hdev)
1836 {
1837         struct btusb_data *data = hci_get_drvdata(hdev);
1838         int err;
1839
1840         BT_DBG("%s", hdev->name);
1841
1842         err = usb_autopm_get_interface(data->intf);
1843         if (err < 0)
1844                 return err;
1845
1846         /* Patching USB firmware files prior to starting any URBs of HCI path
1847          * It is more safe to use USB bulk channel for downloading USB patch
1848          */
1849         if (data->setup_on_usb) {
1850                 err = data->setup_on_usb(hdev);
1851                 if (err < 0)
1852                         goto setup_fail;
1853         }
1854
1855         data->intf->needs_remote_wakeup = 1;
1856
1857         if (test_and_set_bit(BTUSB_INTR_RUNNING, &data->flags))
1858                 goto done;
1859
1860         err = btusb_submit_intr_urb(hdev, GFP_KERNEL);
1861         if (err < 0)
1862                 goto failed;
1863
1864         err = btusb_submit_bulk_urb(hdev, GFP_KERNEL);
1865         if (err < 0) {
1866                 usb_kill_anchored_urbs(&data->intr_anchor);
1867                 goto failed;
1868         }
1869
1870         set_bit(BTUSB_BULK_RUNNING, &data->flags);
1871         btusb_submit_bulk_urb(hdev, GFP_KERNEL);
1872
1873         if (data->diag) {
1874                 if (!btusb_submit_diag_urb(hdev, GFP_KERNEL))
1875                         set_bit(BTUSB_DIAG_RUNNING, &data->flags);
1876         }
1877
1878 done:
1879         usb_autopm_put_interface(data->intf);
1880         return 0;
1881
1882 failed:
1883         clear_bit(BTUSB_INTR_RUNNING, &data->flags);
1884 setup_fail:
1885         usb_autopm_put_interface(data->intf);
1886         return err;
1887 }
1888
1889 static void btusb_stop_traffic(struct btusb_data *data)
1890 {
1891         usb_kill_anchored_urbs(&data->intr_anchor);
1892         usb_kill_anchored_urbs(&data->bulk_anchor);
1893         usb_kill_anchored_urbs(&data->isoc_anchor);
1894         usb_kill_anchored_urbs(&data->diag_anchor);
1895         usb_kill_anchored_urbs(&data->ctrl_anchor);
1896 }
1897
1898 static int btusb_close(struct hci_dev *hdev)
1899 {
1900         struct btusb_data *data = hci_get_drvdata(hdev);
1901         int err;
1902
1903         BT_DBG("%s", hdev->name);
1904
1905         cancel_delayed_work(&data->rx_work);
1906         cancel_work_sync(&data->work);
1907         cancel_work_sync(&data->waker);
1908
1909         skb_queue_purge(&data->acl_q);
1910
1911         clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
1912         clear_bit(BTUSB_BULK_RUNNING, &data->flags);
1913         clear_bit(BTUSB_INTR_RUNNING, &data->flags);
1914         clear_bit(BTUSB_DIAG_RUNNING, &data->flags);
1915
1916         btusb_stop_traffic(data);
1917         btusb_free_frags(data);
1918
1919         err = usb_autopm_get_interface(data->intf);
1920         if (err < 0)
1921                 goto failed;
1922
1923         data->intf->needs_remote_wakeup = 0;
1924
1925         /* Enable remote wake up for auto-suspend */
1926         if (test_bit(BTUSB_WAKEUP_AUTOSUSPEND, &data->flags))
1927                 data->intf->needs_remote_wakeup = 1;
1928
1929         usb_autopm_put_interface(data->intf);
1930
1931 failed:
1932         usb_scuttle_anchored_urbs(&data->deferred);
1933         return 0;
1934 }
1935
1936 static int btusb_flush(struct hci_dev *hdev)
1937 {
1938         struct btusb_data *data = hci_get_drvdata(hdev);
1939
1940         BT_DBG("%s", hdev->name);
1941
1942         cancel_delayed_work(&data->rx_work);
1943
1944         skb_queue_purge(&data->acl_q);
1945
1946         usb_kill_anchored_urbs(&data->tx_anchor);
1947         btusb_free_frags(data);
1948
1949         return 0;
1950 }
1951
1952 static struct urb *alloc_ctrl_urb(struct hci_dev *hdev, struct sk_buff *skb)
1953 {
1954         struct btusb_data *data = hci_get_drvdata(hdev);
1955         struct usb_ctrlrequest *dr;
1956         struct urb *urb;
1957         unsigned int pipe;
1958
1959         urb = usb_alloc_urb(0, GFP_KERNEL);
1960         if (!urb)
1961                 return ERR_PTR(-ENOMEM);
1962
1963         dr = kmalloc(sizeof(*dr), GFP_KERNEL);
1964         if (!dr) {
1965                 usb_free_urb(urb);
1966                 return ERR_PTR(-ENOMEM);
1967         }
1968
1969         dr->bRequestType = data->cmdreq_type;
1970         dr->bRequest     = data->cmdreq;
1971         dr->wIndex       = 0;
1972         dr->wValue       = 0;
1973         dr->wLength      = __cpu_to_le16(skb->len);
1974
1975         pipe = usb_sndctrlpipe(data->udev, 0x00);
1976
1977         usb_fill_control_urb(urb, data->udev, pipe, (void *)dr,
1978                              skb->data, skb->len, btusb_tx_complete, skb);
1979
1980         skb->dev = (void *)hdev;
1981
1982         return urb;
1983 }
1984
1985 static struct urb *alloc_bulk_urb(struct hci_dev *hdev, struct sk_buff *skb)
1986 {
1987         struct btusb_data *data = hci_get_drvdata(hdev);
1988         struct urb *urb;
1989         unsigned int pipe;
1990
1991         if (!data->bulk_tx_ep)
1992                 return ERR_PTR(-ENODEV);
1993
1994         urb = usb_alloc_urb(0, GFP_KERNEL);
1995         if (!urb)
1996                 return ERR_PTR(-ENOMEM);
1997
1998         pipe = usb_sndbulkpipe(data->udev, data->bulk_tx_ep->bEndpointAddress);
1999
2000         usb_fill_bulk_urb(urb, data->udev, pipe,
2001                           skb->data, skb->len, btusb_tx_complete, skb);
2002
2003         skb->dev = (void *)hdev;
2004
2005         return urb;
2006 }
2007
2008 static struct urb *alloc_isoc_urb(struct hci_dev *hdev, struct sk_buff *skb)
2009 {
2010         struct btusb_data *data = hci_get_drvdata(hdev);
2011         struct urb *urb;
2012         unsigned int pipe;
2013
2014         if (!data->isoc_tx_ep)
2015                 return ERR_PTR(-ENODEV);
2016
2017         urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, GFP_KERNEL);
2018         if (!urb)
2019                 return ERR_PTR(-ENOMEM);
2020
2021         pipe = usb_sndisocpipe(data->udev, data->isoc_tx_ep->bEndpointAddress);
2022
2023         usb_fill_int_urb(urb, data->udev, pipe,
2024                          skb->data, skb->len, btusb_isoc_tx_complete,
2025                          skb, data->isoc_tx_ep->bInterval);
2026
2027         urb->transfer_flags  = URB_ISO_ASAP;
2028
2029         if (data->isoc_altsetting == 6)
2030                 __fill_isoc_descriptor_msbc(urb, skb->len,
2031                                             le16_to_cpu(data->isoc_tx_ep->wMaxPacketSize),
2032                                             data);
2033         else
2034                 __fill_isoc_descriptor(urb, skb->len,
2035                                        le16_to_cpu(data->isoc_tx_ep->wMaxPacketSize));
2036         skb->dev = (void *)hdev;
2037
2038         return urb;
2039 }
2040
2041 static int submit_tx_urb(struct hci_dev *hdev, struct urb *urb)
2042 {
2043         struct btusb_data *data = hci_get_drvdata(hdev);
2044         int err;
2045
2046         usb_anchor_urb(urb, &data->tx_anchor);
2047
2048         err = usb_submit_urb(urb, GFP_KERNEL);
2049         if (err < 0) {
2050                 if (err != -EPERM && err != -ENODEV)
2051                         bt_dev_err(hdev, "urb %p submission failed (%d)",
2052                                    urb, -err);
2053                 kfree(urb->setup_packet);
2054                 usb_unanchor_urb(urb);
2055         } else {
2056                 usb_mark_last_busy(data->udev);
2057         }
2058
2059         usb_free_urb(urb);
2060         return err;
2061 }
2062
2063 static int submit_or_queue_tx_urb(struct hci_dev *hdev, struct urb *urb)
2064 {
2065         struct btusb_data *data = hci_get_drvdata(hdev);
2066         unsigned long flags;
2067         bool suspending;
2068
2069         spin_lock_irqsave(&data->txlock, flags);
2070         suspending = test_bit(BTUSB_SUSPENDING, &data->flags);
2071         if (!suspending)
2072                 data->tx_in_flight++;
2073         spin_unlock_irqrestore(&data->txlock, flags);
2074
2075         if (!suspending)
2076                 return submit_tx_urb(hdev, urb);
2077
2078         usb_anchor_urb(urb, &data->deferred);
2079         schedule_work(&data->waker);
2080
2081         usb_free_urb(urb);
2082         return 0;
2083 }
2084
2085 static int btusb_send_frame(struct hci_dev *hdev, struct sk_buff *skb)
2086 {
2087         struct urb *urb;
2088
2089         BT_DBG("%s", hdev->name);
2090
2091         switch (hci_skb_pkt_type(skb)) {
2092         case HCI_COMMAND_PKT:
2093                 urb = alloc_ctrl_urb(hdev, skb);
2094                 if (IS_ERR(urb))
2095                         return PTR_ERR(urb);
2096
2097                 hdev->stat.cmd_tx++;
2098                 return submit_or_queue_tx_urb(hdev, urb);
2099
2100         case HCI_ACLDATA_PKT:
2101                 urb = alloc_bulk_urb(hdev, skb);
2102                 if (IS_ERR(urb))
2103                         return PTR_ERR(urb);
2104
2105                 hdev->stat.acl_tx++;
2106                 return submit_or_queue_tx_urb(hdev, urb);
2107
2108         case HCI_SCODATA_PKT:
2109                 if (hci_conn_num(hdev, SCO_LINK) < 1)
2110                         return -ENODEV;
2111
2112                 urb = alloc_isoc_urb(hdev, skb);
2113                 if (IS_ERR(urb))
2114                         return PTR_ERR(urb);
2115
2116                 hdev->stat.sco_tx++;
2117                 return submit_tx_urb(hdev, urb);
2118
2119         case HCI_ISODATA_PKT:
2120                 urb = alloc_bulk_urb(hdev, skb);
2121                 if (IS_ERR(urb))
2122                         return PTR_ERR(urb);
2123
2124                 return submit_or_queue_tx_urb(hdev, urb);
2125         }
2126
2127         return -EILSEQ;
2128 }
2129
2130 static void btusb_notify(struct hci_dev *hdev, unsigned int evt)
2131 {
2132         struct btusb_data *data = hci_get_drvdata(hdev);
2133
2134         BT_DBG("%s evt %d", hdev->name, evt);
2135
2136         if (hci_conn_num(hdev, SCO_LINK) != data->sco_num) {
2137                 data->sco_num = hci_conn_num(hdev, SCO_LINK);
2138                 data->air_mode = evt;
2139                 schedule_work(&data->work);
2140         }
2141 }
2142
2143 static inline int __set_isoc_interface(struct hci_dev *hdev, int altsetting)
2144 {
2145         struct btusb_data *data = hci_get_drvdata(hdev);
2146         struct usb_interface *intf = data->isoc;
2147         struct usb_endpoint_descriptor *ep_desc;
2148         int i, err;
2149
2150         if (!data->isoc)
2151                 return -ENODEV;
2152
2153         err = usb_set_interface(data->udev, data->isoc_ifnum, altsetting);
2154         if (err < 0) {
2155                 bt_dev_err(hdev, "setting interface failed (%d)", -err);
2156                 return err;
2157         }
2158
2159         data->isoc_altsetting = altsetting;
2160
2161         data->isoc_tx_ep = NULL;
2162         data->isoc_rx_ep = NULL;
2163
2164         for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
2165                 ep_desc = &intf->cur_altsetting->endpoint[i].desc;
2166
2167                 if (!data->isoc_tx_ep && usb_endpoint_is_isoc_out(ep_desc)) {
2168                         data->isoc_tx_ep = ep_desc;
2169                         continue;
2170                 }
2171
2172                 if (!data->isoc_rx_ep && usb_endpoint_is_isoc_in(ep_desc)) {
2173                         data->isoc_rx_ep = ep_desc;
2174                         continue;
2175                 }
2176         }
2177
2178         if (!data->isoc_tx_ep || !data->isoc_rx_ep) {
2179                 bt_dev_err(hdev, "invalid SCO descriptors");
2180                 return -ENODEV;
2181         }
2182
2183         return 0;
2184 }
2185
2186 static int btusb_switch_alt_setting(struct hci_dev *hdev, int new_alts)
2187 {
2188         struct btusb_data *data = hci_get_drvdata(hdev);
2189         int err;
2190
2191         if (data->isoc_altsetting != new_alts) {
2192                 unsigned long flags;
2193
2194                 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
2195                 usb_kill_anchored_urbs(&data->isoc_anchor);
2196
2197                 /* When isochronous alternate setting needs to be
2198                  * changed, because SCO connection has been added
2199                  * or removed, a packet fragment may be left in the
2200                  * reassembling state. This could lead to wrongly
2201                  * assembled fragments.
2202                  *
2203                  * Clear outstanding fragment when selecting a new
2204                  * alternate setting.
2205                  */
2206                 spin_lock_irqsave(&data->rxlock, flags);
2207                 dev_kfree_skb_irq(data->sco_skb);
2208                 data->sco_skb = NULL;
2209                 spin_unlock_irqrestore(&data->rxlock, flags);
2210
2211                 err = __set_isoc_interface(hdev, new_alts);
2212                 if (err < 0)
2213                         return err;
2214         }
2215
2216         if (!test_and_set_bit(BTUSB_ISOC_RUNNING, &data->flags)) {
2217                 if (btusb_submit_isoc_urb(hdev, GFP_KERNEL) < 0)
2218                         clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
2219                 else
2220                         btusb_submit_isoc_urb(hdev, GFP_KERNEL);
2221         }
2222
2223         return 0;
2224 }
2225
2226 static struct usb_host_interface *btusb_find_altsetting(struct btusb_data *data,
2227                                                         int alt)
2228 {
2229         struct usb_interface *intf = data->isoc;
2230         int i;
2231
2232         BT_DBG("Looking for Alt no :%d", alt);
2233
2234         if (!intf)
2235                 return NULL;
2236
2237         for (i = 0; i < intf->num_altsetting; i++) {
2238                 if (intf->altsetting[i].desc.bAlternateSetting == alt)
2239                         return &intf->altsetting[i];
2240         }
2241
2242         return NULL;
2243 }
2244
2245 static void btusb_work(struct work_struct *work)
2246 {
2247         struct btusb_data *data = container_of(work, struct btusb_data, work);
2248         struct hci_dev *hdev = data->hdev;
2249         int new_alts = 0;
2250         int err;
2251
2252         if (data->sco_num > 0) {
2253                 if (!test_bit(BTUSB_DID_ISO_RESUME, &data->flags)) {
2254                         err = usb_autopm_get_interface(data->isoc ? data->isoc : data->intf);
2255                         if (err < 0) {
2256                                 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
2257                                 usb_kill_anchored_urbs(&data->isoc_anchor);
2258                                 return;
2259                         }
2260
2261                         set_bit(BTUSB_DID_ISO_RESUME, &data->flags);
2262                 }
2263
2264                 if (data->air_mode == HCI_NOTIFY_ENABLE_SCO_CVSD) {
2265                         if (hdev->voice_setting & 0x0020) {
2266                                 static const int alts[3] = { 2, 4, 5 };
2267
2268                                 new_alts = alts[data->sco_num - 1];
2269                         } else {
2270                                 new_alts = data->sco_num;
2271                         }
2272                 } else if (data->air_mode == HCI_NOTIFY_ENABLE_SCO_TRANSP) {
2273                         /* Bluetooth USB spec recommends alt 6 (63 bytes), but
2274                          * many adapters do not support it.  Alt 1 appears to
2275                          * work for all adapters that do not have alt 6, and
2276                          * which work with WBS at all.  Some devices prefer
2277                          * alt 3 (HCI payload >= 60 Bytes let air packet
2278                          * data satisfy 60 bytes), requiring
2279                          * MTU >= 3 (packets) * 25 (size) - 3 (headers) = 72
2280                          * see also Core spec 5, vol 4, B 2.1.1 & Table 2.1.
2281                          */
2282                         if (btusb_find_altsetting(data, 6))
2283                                 new_alts = 6;
2284                         else if (btusb_find_altsetting(data, 3) &&
2285                                  hdev->sco_mtu >= 72 &&
2286                                  test_bit(BTUSB_USE_ALT3_FOR_WBS, &data->flags))
2287                                 new_alts = 3;
2288                         else
2289                                 new_alts = 1;
2290                 }
2291
2292                 if (btusb_switch_alt_setting(hdev, new_alts) < 0)
2293                         bt_dev_err(hdev, "set USB alt:(%d) failed!", new_alts);
2294         } else {
2295                 usb_kill_anchored_urbs(&data->isoc_anchor);
2296
2297                 if (test_and_clear_bit(BTUSB_ISOC_RUNNING, &data->flags))
2298                         __set_isoc_interface(hdev, 0);
2299
2300                 if (test_and_clear_bit(BTUSB_DID_ISO_RESUME, &data->flags))
2301                         usb_autopm_put_interface(data->isoc ? data->isoc : data->intf);
2302         }
2303 }
2304
2305 static void btusb_waker(struct work_struct *work)
2306 {
2307         struct btusb_data *data = container_of(work, struct btusb_data, waker);
2308         int err;
2309
2310         err = usb_autopm_get_interface(data->intf);
2311         if (err < 0)
2312                 return;
2313
2314         usb_autopm_put_interface(data->intf);
2315 }
2316
2317 static void btusb_rx_work(struct work_struct *work)
2318 {
2319         struct btusb_data *data = container_of(work, struct btusb_data,
2320                                                rx_work.work);
2321         struct sk_buff *skb;
2322
2323         /* Dequeue ACL data received during the interval */
2324         while ((skb = skb_dequeue(&data->acl_q)))
2325                 data->recv_acl(data->hdev, skb);
2326 }
2327
2328 static int btusb_setup_bcm92035(struct hci_dev *hdev)
2329 {
2330         struct sk_buff *skb;
2331         u8 val = 0x00;
2332
2333         BT_DBG("%s", hdev->name);
2334
2335         skb = __hci_cmd_sync(hdev, 0xfc3b, 1, &val, HCI_INIT_TIMEOUT);
2336         if (IS_ERR(skb))
2337                 bt_dev_err(hdev, "BCM92035 command failed (%ld)", PTR_ERR(skb));
2338         else
2339                 kfree_skb(skb);
2340
2341         return 0;
2342 }
2343
2344 static int btusb_setup_csr(struct hci_dev *hdev)
2345 {
2346         struct btusb_data *data = hci_get_drvdata(hdev);
2347         u16 bcdDevice = le16_to_cpu(data->udev->descriptor.bcdDevice);
2348         struct hci_rp_read_local_version *rp;
2349         struct sk_buff *skb;
2350         bool is_fake = false;
2351         int ret;
2352
2353         BT_DBG("%s", hdev->name);
2354
2355         skb = __hci_cmd_sync(hdev, HCI_OP_READ_LOCAL_VERSION, 0, NULL,
2356                              HCI_INIT_TIMEOUT);
2357         if (IS_ERR(skb)) {
2358                 int err = PTR_ERR(skb);
2359                 bt_dev_err(hdev, "CSR: Local version failed (%d)", err);
2360                 return err;
2361         }
2362
2363         rp = skb_pull_data(skb, sizeof(*rp));
2364         if (!rp) {
2365                 bt_dev_err(hdev, "CSR: Local version length mismatch");
2366                 kfree_skb(skb);
2367                 return -EIO;
2368         }
2369
2370         bt_dev_info(hdev, "CSR: Setting up dongle with HCI ver=%u rev=%04x",
2371                     rp->hci_ver, le16_to_cpu(rp->hci_rev));
2372
2373         bt_dev_info(hdev, "LMP ver=%u subver=%04x; manufacturer=%u",
2374                     rp->lmp_ver, le16_to_cpu(rp->lmp_subver),
2375                     le16_to_cpu(rp->manufacturer));
2376
2377         /* Detect a wide host of Chinese controllers that aren't CSR.
2378          *
2379          * Known fake bcdDevices: 0x0100, 0x0134, 0x1915, 0x2520, 0x7558, 0x8891
2380          *
2381          * The main thing they have in common is that these are really popular low-cost
2382          * options that support newer Bluetooth versions but rely on heavy VID/PID
2383          * squatting of this poor old Bluetooth 1.1 device. Even sold as such.
2384          *
2385          * We detect actual CSR devices by checking that the HCI manufacturer code
2386          * is Cambridge Silicon Radio (10) and ensuring that LMP sub-version and
2387          * HCI rev values always match. As they both store the firmware number.
2388          */
2389         if (le16_to_cpu(rp->manufacturer) != 10 ||
2390             le16_to_cpu(rp->hci_rev) != le16_to_cpu(rp->lmp_subver))
2391                 is_fake = true;
2392
2393         /* Known legit CSR firmware build numbers and their supported BT versions:
2394          * - 1.1 (0x1) -> 0x0073, 0x020d, 0x033c, 0x034e
2395          * - 1.2 (0x2) ->                 0x04d9, 0x0529
2396          * - 2.0 (0x3) ->         0x07a6, 0x07ad, 0x0c5c
2397          * - 2.1 (0x4) ->         0x149c, 0x1735, 0x1899 (0x1899 is a BlueCore4-External)
2398          * - 4.0 (0x6) ->         0x1d86, 0x2031, 0x22bb
2399          *
2400          * e.g. Real CSR dongles with LMP subversion 0x73 are old enough that
2401          *      support BT 1.1 only; so it's a dead giveaway when some
2402          *      third-party BT 4.0 dongle reuses it.
2403          */
2404         else if (le16_to_cpu(rp->lmp_subver) <= 0x034e &&
2405                  rp->hci_ver > BLUETOOTH_VER_1_1)
2406                 is_fake = true;
2407
2408         else if (le16_to_cpu(rp->lmp_subver) <= 0x0529 &&
2409                  rp->hci_ver > BLUETOOTH_VER_1_2)
2410                 is_fake = true;
2411
2412         else if (le16_to_cpu(rp->lmp_subver) <= 0x0c5c &&
2413                  rp->hci_ver > BLUETOOTH_VER_2_0)
2414                 is_fake = true;
2415
2416         else if (le16_to_cpu(rp->lmp_subver) <= 0x1899 &&
2417                  rp->hci_ver > BLUETOOTH_VER_2_1)
2418                 is_fake = true;
2419
2420         else if (le16_to_cpu(rp->lmp_subver) <= 0x22bb &&
2421                  rp->hci_ver > BLUETOOTH_VER_4_0)
2422                 is_fake = true;
2423
2424         /* Other clones which beat all the above checks */
2425         else if (bcdDevice == 0x0134 &&
2426                  le16_to_cpu(rp->lmp_subver) == 0x0c5c &&
2427                  rp->hci_ver == BLUETOOTH_VER_2_0)
2428                 is_fake = true;
2429
2430         if (is_fake) {
2431                 bt_dev_warn(hdev, "CSR: Unbranded CSR clone detected; adding workarounds and force-suspending once...");
2432
2433                 /* Generally these clones have big discrepancies between
2434                  * advertised features and what's actually supported.
2435                  * Probably will need to be expanded in the future;
2436                  * without these the controller will lock up.
2437                  */
2438                 set_bit(HCI_QUIRK_BROKEN_STORED_LINK_KEY, &hdev->quirks);
2439                 set_bit(HCI_QUIRK_BROKEN_ERR_DATA_REPORTING, &hdev->quirks);
2440                 set_bit(HCI_QUIRK_BROKEN_FILTER_CLEAR_ALL, &hdev->quirks);
2441                 set_bit(HCI_QUIRK_NO_SUSPEND_NOTIFIER, &hdev->quirks);
2442
2443                 /* Clear the reset quirk since this is not an actual
2444                  * early Bluetooth 1.1 device from CSR.
2445                  */
2446                 clear_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
2447                 clear_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks);
2448
2449                 /*
2450                  * Special workaround for these BT 4.0 chip clones, and potentially more:
2451                  *
2452                  * - 0x0134: a Barrot 8041a02                 (HCI rev: 0x0810 sub: 0x1012)
2453                  * - 0x7558: IC markings FR3191AHAL 749H15143 (HCI rev/sub-version: 0x0709)
2454                  *
2455                  * These controllers are really messed-up.
2456                  *
2457                  * 1. Their bulk RX endpoint will never report any data unless
2458                  *    the device was suspended at least once (yes, really).
2459                  * 2. They will not wakeup when autosuspended and receiving data
2460                  *    on their bulk RX endpoint from e.g. a keyboard or mouse
2461                  *    (IOW remote-wakeup support is broken for the bulk endpoint).
2462                  *
2463                  * To fix 1. enable runtime-suspend, force-suspend the
2464                  * HCI and then wake-it up by disabling runtime-suspend.
2465                  *
2466                  * To fix 2. clear the HCI's can_wake flag, this way the HCI
2467                  * will still be autosuspended when it is not open.
2468                  *
2469                  * --
2470                  *
2471                  * Because these are widespread problems we prefer generic solutions; so
2472                  * apply this initialization quirk to every controller that gets here,
2473                  * it should be harmless. The alternative is to not work at all.
2474                  */
2475                 pm_runtime_allow(&data->udev->dev);
2476
2477                 ret = pm_runtime_suspend(&data->udev->dev);
2478                 if (ret >= 0)
2479                         msleep(200);
2480                 else
2481                         bt_dev_warn(hdev, "CSR: Couldn't suspend the device for our Barrot 8041a02 receive-issue workaround");
2482
2483                 pm_runtime_forbid(&data->udev->dev);
2484
2485                 device_set_wakeup_capable(&data->udev->dev, false);
2486
2487                 /* Re-enable autosuspend if this was requested */
2488                 if (enable_autosuspend)
2489                         usb_enable_autosuspend(data->udev);
2490         }
2491
2492         kfree_skb(skb);
2493
2494         return 0;
2495 }
2496
2497 static int inject_cmd_complete(struct hci_dev *hdev, __u16 opcode)
2498 {
2499         struct sk_buff *skb;
2500         struct hci_event_hdr *hdr;
2501         struct hci_ev_cmd_complete *evt;
2502
2503         skb = bt_skb_alloc(sizeof(*hdr) + sizeof(*evt) + 1, GFP_KERNEL);
2504         if (!skb)
2505                 return -ENOMEM;
2506
2507         hdr = skb_put(skb, sizeof(*hdr));
2508         hdr->evt = HCI_EV_CMD_COMPLETE;
2509         hdr->plen = sizeof(*evt) + 1;
2510
2511         evt = skb_put(skb, sizeof(*evt));
2512         evt->ncmd = 0x01;
2513         evt->opcode = cpu_to_le16(opcode);
2514
2515         skb_put_u8(skb, 0x00);
2516
2517         hci_skb_pkt_type(skb) = HCI_EVENT_PKT;
2518
2519         return hci_recv_frame(hdev, skb);
2520 }
2521
2522 static int btusb_recv_bulk_intel(struct btusb_data *data, void *buffer,
2523                                  int count)
2524 {
2525         struct hci_dev *hdev = data->hdev;
2526
2527         /* When the device is in bootloader mode, then it can send
2528          * events via the bulk endpoint. These events are treated the
2529          * same way as the ones received from the interrupt endpoint.
2530          */
2531         if (btintel_test_flag(hdev, INTEL_BOOTLOADER))
2532                 return btusb_recv_intr(data, buffer, count);
2533
2534         return btusb_recv_bulk(data, buffer, count);
2535 }
2536
2537 static int btusb_send_frame_intel(struct hci_dev *hdev, struct sk_buff *skb)
2538 {
2539         struct urb *urb;
2540
2541         BT_DBG("%s", hdev->name);
2542
2543         switch (hci_skb_pkt_type(skb)) {
2544         case HCI_COMMAND_PKT:
2545                 if (btintel_test_flag(hdev, INTEL_BOOTLOADER)) {
2546                         struct hci_command_hdr *cmd = (void *)skb->data;
2547                         __u16 opcode = le16_to_cpu(cmd->opcode);
2548
2549                         /* When in bootloader mode and the command 0xfc09
2550                          * is received, it needs to be send down the
2551                          * bulk endpoint. So allocate a bulk URB instead.
2552                          */
2553                         if (opcode == 0xfc09)
2554                                 urb = alloc_bulk_urb(hdev, skb);
2555                         else
2556                                 urb = alloc_ctrl_urb(hdev, skb);
2557
2558                         /* When the 0xfc01 command is issued to boot into
2559                          * the operational firmware, it will actually not
2560                          * send a command complete event. To keep the flow
2561                          * control working inject that event here.
2562                          */
2563                         if (opcode == 0xfc01)
2564                                 inject_cmd_complete(hdev, opcode);
2565                 } else {
2566                         urb = alloc_ctrl_urb(hdev, skb);
2567                 }
2568                 if (IS_ERR(urb))
2569                         return PTR_ERR(urb);
2570
2571                 hdev->stat.cmd_tx++;
2572                 return submit_or_queue_tx_urb(hdev, urb);
2573
2574         case HCI_ACLDATA_PKT:
2575                 urb = alloc_bulk_urb(hdev, skb);
2576                 if (IS_ERR(urb))
2577                         return PTR_ERR(urb);
2578
2579                 hdev->stat.acl_tx++;
2580                 return submit_or_queue_tx_urb(hdev, urb);
2581
2582         case HCI_SCODATA_PKT:
2583                 if (hci_conn_num(hdev, SCO_LINK) < 1)
2584                         return -ENODEV;
2585
2586                 urb = alloc_isoc_urb(hdev, skb);
2587                 if (IS_ERR(urb))
2588                         return PTR_ERR(urb);
2589
2590                 hdev->stat.sco_tx++;
2591                 return submit_tx_urb(hdev, urb);
2592
2593         case HCI_ISODATA_PKT:
2594                 urb = alloc_bulk_urb(hdev, skb);
2595                 if (IS_ERR(urb))
2596                         return PTR_ERR(urb);
2597
2598                 return submit_or_queue_tx_urb(hdev, urb);
2599         }
2600
2601         return -EILSEQ;
2602 }
2603
2604 static int btusb_setup_realtek(struct hci_dev *hdev)
2605 {
2606         struct btusb_data *data = hci_get_drvdata(hdev);
2607         int ret;
2608
2609         ret = btrtl_setup_realtek(hdev);
2610
2611         if (btrealtek_test_flag(data->hdev, REALTEK_ALT6_CONTINUOUS_TX_CHIP))
2612                 set_bit(BTUSB_ALT6_CONTINUOUS_TX, &data->flags);
2613
2614         return ret;
2615 }
2616
2617 static int btusb_recv_event_realtek(struct hci_dev *hdev, struct sk_buff *skb)
2618 {
2619         if (skb->data[0] == HCI_VENDOR_PKT && skb->data[2] == RTK_SUB_EVENT_CODE_COREDUMP) {
2620                 struct rtk_dev_coredump_hdr hdr = {
2621                         .code = RTK_DEVCOREDUMP_CODE_MEMDUMP,
2622                 };
2623
2624                 bt_dev_dbg(hdev, "RTL: received coredump vendor evt, len %u",
2625                         skb->len);
2626
2627                 btusb_rtl_alloc_devcoredump(hdev, &hdr, skb->data, skb->len);
2628                 kfree_skb(skb);
2629
2630                 return 0;
2631         }
2632
2633         return hci_recv_frame(hdev, skb);
2634 }
2635
2636 static void btusb_mtk_claim_iso_intf(struct btusb_data *data)
2637 {
2638         struct btmtk_data *btmtk_data = hci_get_priv(data->hdev);
2639         int err;
2640
2641         err = usb_driver_claim_interface(&btusb_driver,
2642                                          btmtk_data->isopkt_intf, data);
2643         if (err < 0) {
2644                 btmtk_data->isopkt_intf = NULL;
2645                 bt_dev_err(data->hdev, "Failed to claim iso interface");
2646                 return;
2647         }
2648
2649         set_bit(BTMTK_ISOPKT_OVER_INTR, &btmtk_data->flags);
2650         init_usb_anchor(&btmtk_data->isopkt_anchor);
2651 }
2652
2653 static void btusb_mtk_release_iso_intf(struct hci_dev *hdev)
2654 {
2655         struct btmtk_data *btmtk_data = hci_get_priv(hdev);
2656
2657         if (test_bit(BTMTK_ISOPKT_OVER_INTR, &btmtk_data->flags)) {
2658                 usb_kill_anchored_urbs(&btmtk_data->isopkt_anchor);
2659                 clear_bit(BTMTK_ISOPKT_RUNNING, &btmtk_data->flags);
2660
2661                 dev_kfree_skb_irq(btmtk_data->isopkt_skb);
2662                 btmtk_data->isopkt_skb = NULL;
2663                 usb_set_intfdata(btmtk_data->isopkt_intf, NULL);
2664                 usb_driver_release_interface(&btusb_driver,
2665                                              btmtk_data->isopkt_intf);
2666         }
2667
2668         clear_bit(BTMTK_ISOPKT_OVER_INTR, &btmtk_data->flags);
2669 }
2670
2671 static int btusb_mtk_disconnect(struct hci_dev *hdev)
2672 {
2673         /* This function describes the specific additional steps taken by MediaTek
2674          * when Bluetooth usb driver's resume function is called.
2675          */
2676         btusb_mtk_release_iso_intf(hdev);
2677
2678         return 0;
2679 }
2680
2681 static int btusb_mtk_reset(struct hci_dev *hdev, void *rst_data)
2682 {
2683         struct btusb_data *data = hci_get_drvdata(hdev);
2684         struct btmtk_data *btmtk_data = hci_get_priv(hdev);
2685         int err;
2686
2687         /* It's MediaTek specific bluetooth reset mechanism via USB */
2688         if (test_and_set_bit(BTMTK_HW_RESET_ACTIVE, &btmtk_data->flags)) {
2689                 bt_dev_err(hdev, "last reset failed? Not resetting again");
2690                 return -EBUSY;
2691         }
2692
2693         err = usb_autopm_get_interface(data->intf);
2694         if (err < 0)
2695                 return err;
2696
2697         /* Release MediaTek ISO data interface */
2698         btusb_mtk_release_iso_intf(hdev);
2699
2700         btusb_stop_traffic(data);
2701         usb_kill_anchored_urbs(&data->tx_anchor);
2702
2703         err = btmtk_usb_subsys_reset(hdev, btmtk_data->dev_id);
2704
2705         usb_queue_reset_device(data->intf);
2706         clear_bit(BTMTK_HW_RESET_ACTIVE, &btmtk_data->flags);
2707
2708         return err;
2709 }
2710
2711 static int btusb_send_frame_mtk(struct hci_dev *hdev, struct sk_buff *skb)
2712 {
2713         struct urb *urb;
2714
2715         BT_DBG("%s", hdev->name);
2716
2717         if (hci_skb_pkt_type(skb) == HCI_ISODATA_PKT) {
2718                 urb = alloc_mtk_intr_urb(hdev, skb, btusb_tx_complete);
2719                 if (IS_ERR(urb))
2720                         return PTR_ERR(urb);
2721
2722                 return submit_or_queue_tx_urb(hdev, urb);
2723         } else {
2724                 return btusb_send_frame(hdev, skb);
2725         }
2726 }
2727
2728 static int btusb_mtk_setup(struct hci_dev *hdev)
2729 {
2730         struct btusb_data *data = hci_get_drvdata(hdev);
2731         struct btmtk_data *btmtk_data = hci_get_priv(hdev);
2732
2733         /* MediaTek WMT vendor cmd requiring below USB resources to
2734          * complete the handshake.
2735          */
2736         btmtk_data->drv_name = btusb_driver.name;
2737         btmtk_data->intf = data->intf;
2738         btmtk_data->udev = data->udev;
2739         btmtk_data->ctrl_anchor = &data->ctrl_anchor;
2740         btmtk_data->reset_sync = btusb_mtk_reset;
2741
2742         /* Claim ISO data interface and endpoint */
2743         if (!test_bit(BTMTK_ISOPKT_OVER_INTR, &btmtk_data->flags)) {
2744                 btmtk_data->isopkt_intf = usb_ifnum_to_if(data->udev, MTK_ISO_IFNUM);
2745                 btusb_mtk_claim_iso_intf(data);
2746         }
2747
2748         return btmtk_usb_setup(hdev);
2749 }
2750
2751 static int btusb_mtk_shutdown(struct hci_dev *hdev)
2752 {
2753         int ret;
2754
2755         ret = btmtk_usb_shutdown(hdev);
2756
2757         /* Release MediaTek iso interface after shutdown */
2758         btusb_mtk_release_iso_intf(hdev);
2759
2760         return ret;
2761 }
2762
2763 #ifdef CONFIG_PM
2764 /* Configure an out-of-band gpio as wake-up pin, if specified in device tree */
2765 static int marvell_config_oob_wake(struct hci_dev *hdev)
2766 {
2767         struct sk_buff *skb;
2768         struct btusb_data *data = hci_get_drvdata(hdev);
2769         struct device *dev = &data->udev->dev;
2770         u16 pin, gap, opcode;
2771         int ret;
2772         u8 cmd[5];
2773
2774         /* Move on if no wakeup pin specified */
2775         if (of_property_read_u16(dev->of_node, "marvell,wakeup-pin", &pin) ||
2776             of_property_read_u16(dev->of_node, "marvell,wakeup-gap-ms", &gap))
2777                 return 0;
2778
2779         /* Vendor specific command to configure a GPIO as wake-up pin */
2780         opcode = hci_opcode_pack(0x3F, 0x59);
2781         cmd[0] = opcode & 0xFF;
2782         cmd[1] = opcode >> 8;
2783         cmd[2] = 2; /* length of parameters that follow */
2784         cmd[3] = pin;
2785         cmd[4] = gap; /* time in ms, for which wakeup pin should be asserted */
2786
2787         skb = bt_skb_alloc(sizeof(cmd), GFP_KERNEL);
2788         if (!skb) {
2789                 bt_dev_err(hdev, "%s: No memory", __func__);
2790                 return -ENOMEM;
2791         }
2792
2793         skb_put_data(skb, cmd, sizeof(cmd));
2794         hci_skb_pkt_type(skb) = HCI_COMMAND_PKT;
2795
2796         ret = btusb_send_frame(hdev, skb);
2797         if (ret) {
2798                 bt_dev_err(hdev, "%s: configuration failed", __func__);
2799                 kfree_skb(skb);
2800                 return ret;
2801         }
2802
2803         return 0;
2804 }
2805 #endif
2806
2807 static int btusb_set_bdaddr_marvell(struct hci_dev *hdev,
2808                                     const bdaddr_t *bdaddr)
2809 {
2810         struct sk_buff *skb;
2811         u8 buf[8];
2812         long ret;
2813
2814         buf[0] = 0xfe;
2815         buf[1] = sizeof(bdaddr_t);
2816         memcpy(buf + 2, bdaddr, sizeof(bdaddr_t));
2817
2818         skb = __hci_cmd_sync(hdev, 0xfc22, sizeof(buf), buf, HCI_INIT_TIMEOUT);
2819         if (IS_ERR(skb)) {
2820                 ret = PTR_ERR(skb);
2821                 bt_dev_err(hdev, "changing Marvell device address failed (%ld)",
2822                            ret);
2823                 return ret;
2824         }
2825         kfree_skb(skb);
2826
2827         return 0;
2828 }
2829
2830 static int btusb_set_bdaddr_ath3012(struct hci_dev *hdev,
2831                                     const bdaddr_t *bdaddr)
2832 {
2833         struct sk_buff *skb;
2834         u8 buf[10];
2835         long ret;
2836
2837         buf[0] = 0x01;
2838         buf[1] = 0x01;
2839         buf[2] = 0x00;
2840         buf[3] = sizeof(bdaddr_t);
2841         memcpy(buf + 4, bdaddr, sizeof(bdaddr_t));
2842
2843         skb = __hci_cmd_sync(hdev, 0xfc0b, sizeof(buf), buf, HCI_INIT_TIMEOUT);
2844         if (IS_ERR(skb)) {
2845                 ret = PTR_ERR(skb);
2846                 bt_dev_err(hdev, "Change address command failed (%ld)", ret);
2847                 return ret;
2848         }
2849         kfree_skb(skb);
2850
2851         return 0;
2852 }
2853
2854 static int btusb_set_bdaddr_wcn6855(struct hci_dev *hdev,
2855                                 const bdaddr_t *bdaddr)
2856 {
2857         struct sk_buff *skb;
2858         u8 buf[6];
2859         long ret;
2860
2861         memcpy(buf, bdaddr, sizeof(bdaddr_t));
2862
2863         skb = __hci_cmd_sync_ev(hdev, 0xfc14, sizeof(buf), buf,
2864                                 HCI_EV_CMD_COMPLETE, HCI_INIT_TIMEOUT);
2865         if (IS_ERR(skb)) {
2866                 ret = PTR_ERR(skb);
2867                 bt_dev_err(hdev, "Change address command failed (%ld)", ret);
2868                 return ret;
2869         }
2870         kfree_skb(skb);
2871
2872         return 0;
2873 }
2874
2875 #define QCA_MEMDUMP_ACL_HANDLE 0x2EDD
2876 #define QCA_MEMDUMP_SIZE_MAX  0x100000
2877 #define QCA_MEMDUMP_VSE_CLASS 0x01
2878 #define QCA_MEMDUMP_MSG_TYPE 0x08
2879 #define QCA_MEMDUMP_PKT_SIZE 248
2880 #define QCA_LAST_SEQUENCE_NUM 0xffff
2881
2882 struct qca_dump_hdr {
2883         u8 vse_class;
2884         u8 msg_type;
2885         __le16 seqno;
2886         u8 reserved;
2887         union {
2888                 u8 data[0];
2889                 struct {
2890                         __le32 ram_dump_size;
2891                         u8 data0[0];
2892                 } __packed;
2893         };
2894 } __packed;
2895
2896
2897 static void btusb_dump_hdr_qca(struct hci_dev *hdev, struct sk_buff *skb)
2898 {
2899         char buf[128];
2900         struct btusb_data *btdata = hci_get_drvdata(hdev);
2901
2902         snprintf(buf, sizeof(buf), "Controller Name: 0x%x\n",
2903                         btdata->qca_dump.controller_id);
2904         skb_put_data(skb, buf, strlen(buf));
2905
2906         snprintf(buf, sizeof(buf), "Firmware Version: 0x%x\n",
2907                         btdata->qca_dump.fw_version);
2908         skb_put_data(skb, buf, strlen(buf));
2909
2910         snprintf(buf, sizeof(buf), "Driver: %s\nVendor: qca\n",
2911                         btusb_driver.name);
2912         skb_put_data(skb, buf, strlen(buf));
2913
2914         snprintf(buf, sizeof(buf), "VID: 0x%x\nPID:0x%x\n",
2915                         btdata->qca_dump.id_vendor, btdata->qca_dump.id_product);
2916         skb_put_data(skb, buf, strlen(buf));
2917
2918         snprintf(buf, sizeof(buf), "Lmp Subversion: 0x%x\n",
2919                         hdev->lmp_subver);
2920         skb_put_data(skb, buf, strlen(buf));
2921 }
2922
2923 static void btusb_coredump_qca(struct hci_dev *hdev)
2924 {
2925         int err;
2926         static const u8 param[] = { 0x26 };
2927
2928         err = __hci_cmd_send(hdev, 0xfc0c, 1, param);
2929         if (err < 0)
2930                 bt_dev_err(hdev, "%s: triggle crash failed (%d)", __func__, err);
2931 }
2932
2933 /*
2934  * ==0: not a dump pkt.
2935  * < 0: fails to handle a dump pkt
2936  * > 0: otherwise.
2937  */
2938 static int handle_dump_pkt_qca(struct hci_dev *hdev, struct sk_buff *skb)
2939 {
2940         int ret = 1;
2941         u8 pkt_type;
2942         u8 *sk_ptr;
2943         unsigned int sk_len;
2944         u16 seqno;
2945         u32 dump_size;
2946
2947         struct hci_event_hdr *event_hdr;
2948         struct hci_acl_hdr *acl_hdr;
2949         struct qca_dump_hdr *dump_hdr;
2950         struct btusb_data *btdata = hci_get_drvdata(hdev);
2951         struct usb_device *udev = btdata->udev;
2952
2953         pkt_type = hci_skb_pkt_type(skb);
2954         sk_ptr = skb->data;
2955         sk_len = skb->len;
2956
2957         if (pkt_type == HCI_ACLDATA_PKT) {
2958                 acl_hdr = hci_acl_hdr(skb);
2959                 if (le16_to_cpu(acl_hdr->handle) != QCA_MEMDUMP_ACL_HANDLE)
2960                         return 0;
2961                 sk_ptr += HCI_ACL_HDR_SIZE;
2962                 sk_len -= HCI_ACL_HDR_SIZE;
2963                 event_hdr = (struct hci_event_hdr *)sk_ptr;
2964         } else {
2965                 event_hdr = hci_event_hdr(skb);
2966         }
2967
2968         if ((event_hdr->evt != HCI_VENDOR_PKT)
2969                 || (event_hdr->plen != (sk_len - HCI_EVENT_HDR_SIZE)))
2970                 return 0;
2971
2972         sk_ptr += HCI_EVENT_HDR_SIZE;
2973         sk_len -= HCI_EVENT_HDR_SIZE;
2974
2975         dump_hdr = (struct qca_dump_hdr *)sk_ptr;
2976         if ((sk_len < offsetof(struct qca_dump_hdr, data))
2977                 || (dump_hdr->vse_class != QCA_MEMDUMP_VSE_CLASS)
2978             || (dump_hdr->msg_type != QCA_MEMDUMP_MSG_TYPE))
2979                 return 0;
2980
2981         /*it is dump pkt now*/
2982         seqno = le16_to_cpu(dump_hdr->seqno);
2983         if (seqno == 0) {
2984                 set_bit(BTUSB_HW_SSR_ACTIVE, &btdata->flags);
2985                 dump_size = le32_to_cpu(dump_hdr->ram_dump_size);
2986                 if (!dump_size || (dump_size > QCA_MEMDUMP_SIZE_MAX)) {
2987                         ret = -EILSEQ;
2988                         bt_dev_err(hdev, "Invalid memdump size(%u)",
2989                                    dump_size);
2990                         goto out;
2991                 }
2992
2993                 ret = hci_devcd_init(hdev, dump_size);
2994                 if (ret < 0) {
2995                         bt_dev_err(hdev, "memdump init error(%d)", ret);
2996                         goto out;
2997                 }
2998
2999                 btdata->qca_dump.ram_dump_size = dump_size;
3000                 btdata->qca_dump.ram_dump_seqno = 0;
3001                 sk_ptr += offsetof(struct qca_dump_hdr, data0);
3002                 sk_len -= offsetof(struct qca_dump_hdr, data0);
3003
3004                 usb_disable_autosuspend(udev);
3005                 bt_dev_info(hdev, "%s memdump size(%u)\n",
3006                             (pkt_type == HCI_ACLDATA_PKT) ? "ACL" : "event",
3007                             dump_size);
3008         } else {
3009                 sk_ptr += offsetof(struct qca_dump_hdr, data);
3010                 sk_len -= offsetof(struct qca_dump_hdr, data);
3011         }
3012
3013         if (!btdata->qca_dump.ram_dump_size) {
3014                 ret = -EINVAL;
3015                 bt_dev_err(hdev, "memdump is not active");
3016                 goto out;
3017         }
3018
3019         if ((seqno > btdata->qca_dump.ram_dump_seqno + 1) && (seqno != QCA_LAST_SEQUENCE_NUM)) {
3020                 dump_size = QCA_MEMDUMP_PKT_SIZE * (seqno - btdata->qca_dump.ram_dump_seqno - 1);
3021                 hci_devcd_append_pattern(hdev, 0x0, dump_size);
3022                 bt_dev_err(hdev,
3023                            "expected memdump seqno(%u) is not received(%u)\n",
3024                            btdata->qca_dump.ram_dump_seqno, seqno);
3025                 btdata->qca_dump.ram_dump_seqno = seqno;
3026                 kfree_skb(skb);
3027                 return ret;
3028         }
3029
3030         skb_pull(skb, skb->len - sk_len);
3031         hci_devcd_append(hdev, skb);
3032         btdata->qca_dump.ram_dump_seqno++;
3033         if (seqno == QCA_LAST_SEQUENCE_NUM) {
3034                 bt_dev_info(hdev,
3035                                 "memdump done: pkts(%u), total(%u)\n",
3036                                 btdata->qca_dump.ram_dump_seqno, btdata->qca_dump.ram_dump_size);
3037
3038                 hci_devcd_complete(hdev);
3039                 goto out;
3040         }
3041         return ret;
3042
3043 out:
3044         if (btdata->qca_dump.ram_dump_size)
3045                 usb_enable_autosuspend(udev);
3046         btdata->qca_dump.ram_dump_size = 0;
3047         btdata->qca_dump.ram_dump_seqno = 0;
3048         clear_bit(BTUSB_HW_SSR_ACTIVE, &btdata->flags);
3049
3050         if (ret < 0)
3051                 kfree_skb(skb);
3052         return ret;
3053 }
3054
3055 static int btusb_recv_acl_qca(struct hci_dev *hdev, struct sk_buff *skb)
3056 {
3057         if (handle_dump_pkt_qca(hdev, skb))
3058                 return 0;
3059         return hci_recv_frame(hdev, skb);
3060 }
3061
3062 static int btusb_recv_evt_qca(struct hci_dev *hdev, struct sk_buff *skb)
3063 {
3064         if (handle_dump_pkt_qca(hdev, skb))
3065                 return 0;
3066         return hci_recv_frame(hdev, skb);
3067 }
3068
3069
3070 #define QCA_DFU_PACKET_LEN      4096
3071
3072 #define QCA_GET_TARGET_VERSION  0x09
3073 #define QCA_CHECK_STATUS        0x05
3074 #define QCA_DFU_DOWNLOAD        0x01
3075
3076 #define QCA_SYSCFG_UPDATED      0x40
3077 #define QCA_PATCH_UPDATED       0x80
3078 #define QCA_DFU_TIMEOUT         3000
3079 #define QCA_FLAG_MULTI_NVM      0x80
3080 #define QCA_BT_RESET_WAIT_MS    100
3081
3082 #define WCN6855_2_0_RAM_VERSION_GF 0x400c1200
3083 #define WCN6855_2_1_RAM_VERSION_GF 0x400c1211
3084
3085 struct qca_version {
3086         __le32  rom_version;
3087         __le32  patch_version;
3088         __le32  ram_version;
3089         __u8    chip_id;
3090         __u8    platform_id;
3091         __le16  flag;
3092         __u8    reserved[4];
3093 } __packed;
3094
3095 struct qca_rampatch_version {
3096         __le16  rom_version_high;
3097         __le16  rom_version_low;
3098         __le16  patch_version;
3099 } __packed;
3100
3101 struct qca_device_info {
3102         u32     rom_version;
3103         u8      rampatch_hdr;   /* length of header in rampatch */
3104         u8      nvm_hdr;        /* length of header in NVM */
3105         u8      ver_offset;     /* offset of version structure in rampatch */
3106 };
3107
3108 static const struct qca_device_info qca_devices_table[] = {
3109         { 0x00000100, 20, 4,  8 }, /* Rome 1.0 */
3110         { 0x00000101, 20, 4,  8 }, /* Rome 1.1 */
3111         { 0x00000200, 28, 4, 16 }, /* Rome 2.0 */
3112         { 0x00000201, 28, 4, 16 }, /* Rome 2.1 */
3113         { 0x00000300, 28, 4, 16 }, /* Rome 3.0 */
3114         { 0x00000302, 28, 4, 16 }, /* Rome 3.2 */
3115         { 0x00130100, 40, 4, 16 }, /* WCN6855 1.0 */
3116         { 0x00130200, 40, 4, 16 }, /* WCN6855 2.0 */
3117         { 0x00130201, 40, 4, 16 }, /* WCN6855 2.1 */
3118         { 0x00190200, 40, 4, 16 }, /* WCN785x 2.0 */
3119 };
3120
3121 static int btusb_qca_send_vendor_req(struct usb_device *udev, u8 request,
3122                                      void *data, u16 size)
3123 {
3124         int pipe, err;
3125         u8 *buf;
3126
3127         buf = kmalloc(size, GFP_KERNEL);
3128         if (!buf)
3129                 return -ENOMEM;
3130
3131         /* Found some of USB hosts have IOT issues with ours so that we should
3132          * not wait until HCI layer is ready.
3133          */
3134         pipe = usb_rcvctrlpipe(udev, 0);
3135         err = usb_control_msg(udev, pipe, request, USB_TYPE_VENDOR | USB_DIR_IN,
3136                               0, 0, buf, size, USB_CTRL_GET_TIMEOUT);
3137         if (err < 0) {
3138                 dev_err(&udev->dev, "Failed to access otp area (%d)", err);
3139                 goto done;
3140         }
3141
3142         memcpy(data, buf, size);
3143
3144 done:
3145         kfree(buf);
3146
3147         return err;
3148 }
3149
3150 static int btusb_setup_qca_download_fw(struct hci_dev *hdev,
3151                                        const struct firmware *firmware,
3152                                        size_t hdr_size)
3153 {
3154         struct btusb_data *btdata = hci_get_drvdata(hdev);
3155         struct usb_device *udev = btdata->udev;
3156         size_t count, size, sent = 0;
3157         int pipe, len, err;
3158         u8 *buf;
3159
3160         buf = kmalloc(QCA_DFU_PACKET_LEN, GFP_KERNEL);
3161         if (!buf)
3162                 return -ENOMEM;
3163
3164         count = firmware->size;
3165
3166         size = min_t(size_t, count, hdr_size);
3167         memcpy(buf, firmware->data, size);
3168
3169         /* USB patches should go down to controller through USB path
3170          * because binary format fits to go down through USB channel.
3171          * USB control path is for patching headers and USB bulk is for
3172          * patch body.
3173          */
3174         pipe = usb_sndctrlpipe(udev, 0);
3175         err = usb_control_msg(udev, pipe, QCA_DFU_DOWNLOAD, USB_TYPE_VENDOR,
3176                               0, 0, buf, size, USB_CTRL_SET_TIMEOUT);
3177         if (err < 0) {
3178                 bt_dev_err(hdev, "Failed to send headers (%d)", err);
3179                 goto done;
3180         }
3181
3182         sent += size;
3183         count -= size;
3184
3185         /* ep2 need time to switch from function acl to function dfu,
3186          * so we add 20ms delay here.
3187          */
3188         msleep(20);
3189
3190         while (count) {
3191                 size = min_t(size_t, count, QCA_DFU_PACKET_LEN);
3192
3193                 memcpy(buf, firmware->data + sent, size);
3194
3195                 pipe = usb_sndbulkpipe(udev, 0x02);
3196                 err = usb_bulk_msg(udev, pipe, buf, size, &len,
3197                                    QCA_DFU_TIMEOUT);
3198                 if (err < 0) {
3199                         bt_dev_err(hdev, "Failed to send body at %zd of %zd (%d)",
3200                                    sent, firmware->size, err);
3201                         break;
3202                 }
3203
3204                 if (size != len) {
3205                         bt_dev_err(hdev, "Failed to get bulk buffer");
3206                         err = -EILSEQ;
3207                         break;
3208                 }
3209
3210                 sent  += size;
3211                 count -= size;
3212         }
3213
3214 done:
3215         kfree(buf);
3216         return err;
3217 }
3218
3219 static int btusb_setup_qca_load_rampatch(struct hci_dev *hdev,
3220                                          struct qca_version *ver,
3221                                          const struct qca_device_info *info)
3222 {
3223         struct qca_rampatch_version *rver;
3224         const struct firmware *fw;
3225         u32 ver_rom, ver_patch, rver_rom;
3226         u16 rver_rom_low, rver_rom_high, rver_patch;
3227         char fwname[64];
3228         int err;
3229
3230         ver_rom = le32_to_cpu(ver->rom_version);
3231         ver_patch = le32_to_cpu(ver->patch_version);
3232
3233         snprintf(fwname, sizeof(fwname), "qca/rampatch_usb_%08x.bin", ver_rom);
3234
3235         err = request_firmware(&fw, fwname, &hdev->dev);
3236         if (err) {
3237                 bt_dev_err(hdev, "failed to request rampatch file: %s (%d)",
3238                            fwname, err);
3239                 return err;
3240         }
3241
3242         bt_dev_info(hdev, "using rampatch file: %s", fwname);
3243
3244         rver = (struct qca_rampatch_version *)(fw->data + info->ver_offset);
3245         rver_rom_low = le16_to_cpu(rver->rom_version_low);
3246         rver_patch = le16_to_cpu(rver->patch_version);
3247
3248         if (ver_rom & ~0xffffU) {
3249                 rver_rom_high = le16_to_cpu(rver->rom_version_high);
3250                 rver_rom = rver_rom_high << 16 | rver_rom_low;
3251         } else {
3252                 rver_rom = rver_rom_low;
3253         }
3254
3255         bt_dev_info(hdev, "QCA: patch rome 0x%x build 0x%x, "
3256                     "firmware rome 0x%x build 0x%x",
3257                     rver_rom, rver_patch, ver_rom, ver_patch);
3258
3259         if (rver_rom != ver_rom || rver_patch <= ver_patch) {
3260                 bt_dev_err(hdev, "rampatch file version did not match with firmware");
3261                 err = -EINVAL;
3262                 goto done;
3263         }
3264
3265         err = btusb_setup_qca_download_fw(hdev, fw, info->rampatch_hdr);
3266
3267 done:
3268         release_firmware(fw);
3269
3270         return err;
3271 }
3272
3273 static void btusb_generate_qca_nvm_name(char *fwname, size_t max_size,
3274                                         const struct qca_version *ver)
3275 {
3276         u32 rom_version = le32_to_cpu(ver->rom_version);
3277         u16 flag = le16_to_cpu(ver->flag);
3278
3279         if (((flag >> 8) & 0xff) == QCA_FLAG_MULTI_NVM) {
3280                 /* The board_id should be split into two bytes
3281                  * The 1st byte is chip ID, and the 2nd byte is platform ID
3282                  * For example, board ID 0x010A, 0x01 is platform ID. 0x0A is chip ID
3283                  * we have several platforms, and platform IDs are continuously added
3284                  * Platform ID:
3285                  * 0x00 is for Mobile
3286                  * 0x01 is for X86
3287                  * 0x02 is for Automotive
3288                  * 0x03 is for Consumer electronic
3289                  */
3290                 u16 board_id = (ver->chip_id << 8) + ver->platform_id;
3291                 const char *variant;
3292
3293                 switch (le32_to_cpu(ver->ram_version)) {
3294                 case WCN6855_2_0_RAM_VERSION_GF:
3295                 case WCN6855_2_1_RAM_VERSION_GF:
3296                         variant = "_gf";
3297                         break;
3298                 default:
3299                         variant = "";
3300                         break;
3301                 }
3302
3303                 if (board_id == 0) {
3304                         snprintf(fwname, max_size, "qca/nvm_usb_%08x%s.bin",
3305                                 rom_version, variant);
3306                 } else {
3307                         snprintf(fwname, max_size, "qca/nvm_usb_%08x%s_%04x.bin",
3308                                 rom_version, variant, board_id);
3309                 }
3310         } else {
3311                 snprintf(fwname, max_size, "qca/nvm_usb_%08x.bin",
3312                         rom_version);
3313         }
3314
3315 }
3316
3317 static int btusb_setup_qca_load_nvm(struct hci_dev *hdev,
3318                                     struct qca_version *ver,
3319                                     const struct qca_device_info *info)
3320 {
3321         const struct firmware *fw;
3322         char fwname[64];
3323         int err;
3324
3325         btusb_generate_qca_nvm_name(fwname, sizeof(fwname), ver);
3326
3327         err = request_firmware(&fw, fwname, &hdev->dev);
3328         if (err) {
3329                 bt_dev_err(hdev, "failed to request NVM file: %s (%d)",
3330                            fwname, err);
3331                 return err;
3332         }
3333
3334         bt_dev_info(hdev, "using NVM file: %s", fwname);
3335
3336         err = btusb_setup_qca_download_fw(hdev, fw, info->nvm_hdr);
3337
3338         release_firmware(fw);
3339
3340         return err;
3341 }
3342
3343 /* identify the ROM version and check whether patches are needed */
3344 static bool btusb_qca_need_patch(struct usb_device *udev)
3345 {
3346         struct qca_version ver;
3347
3348         if (btusb_qca_send_vendor_req(udev, QCA_GET_TARGET_VERSION, &ver,
3349                                       sizeof(ver)) < 0)
3350                 return false;
3351         /* only low ROM versions need patches */
3352         return !(le32_to_cpu(ver.rom_version) & ~0xffffU);
3353 }
3354
3355 static int btusb_setup_qca(struct hci_dev *hdev)
3356 {
3357         struct btusb_data *btdata = hci_get_drvdata(hdev);
3358         struct usb_device *udev = btdata->udev;
3359         const struct qca_device_info *info = NULL;
3360         struct qca_version ver;
3361         u32 ver_rom;
3362         u8 status;
3363         int i, err;
3364
3365         err = btusb_qca_send_vendor_req(udev, QCA_GET_TARGET_VERSION, &ver,
3366                                         sizeof(ver));
3367         if (err < 0)
3368                 return err;
3369
3370         ver_rom = le32_to_cpu(ver.rom_version);
3371
3372         for (i = 0; i < ARRAY_SIZE(qca_devices_table); i++) {
3373                 if (ver_rom == qca_devices_table[i].rom_version)
3374                         info = &qca_devices_table[i];
3375         }
3376         if (!info) {
3377                 /* If the rom_version is not matched in the qca_devices_table
3378                  * and the high ROM version is not zero, we assume this chip no
3379                  * need to load the rampatch and nvm.
3380                  */
3381                 if (ver_rom & ~0xffffU)
3382                         return 0;
3383
3384                 bt_dev_err(hdev, "don't support firmware rome 0x%x", ver_rom);
3385                 return -ENODEV;
3386         }
3387
3388         err = btusb_qca_send_vendor_req(udev, QCA_CHECK_STATUS, &status,
3389                                         sizeof(status));
3390         if (err < 0)
3391                 return err;
3392
3393         if (!(status & QCA_PATCH_UPDATED)) {
3394                 err = btusb_setup_qca_load_rampatch(hdev, &ver, info);
3395                 if (err < 0)
3396                         return err;
3397         }
3398
3399         err = btusb_qca_send_vendor_req(udev, QCA_GET_TARGET_VERSION, &ver,
3400                                         sizeof(ver));
3401         if (err < 0)
3402                 return err;
3403
3404         btdata->qca_dump.fw_version = le32_to_cpu(ver.patch_version);
3405         btdata->qca_dump.controller_id = le32_to_cpu(ver.rom_version);
3406
3407         if (!(status & QCA_SYSCFG_UPDATED)) {
3408                 err = btusb_setup_qca_load_nvm(hdev, &ver, info);
3409                 if (err < 0)
3410                         return err;
3411
3412                 /* WCN6855 2.1 and later will reset to apply firmware downloaded here, so
3413                  * wait ~100ms for reset Done then go ahead, otherwise, it maybe
3414                  * cause potential enable failure.
3415                  */
3416                 if (info->rom_version >= 0x00130201)
3417                         msleep(QCA_BT_RESET_WAIT_MS);
3418         }
3419
3420         /* Mark HCI_OP_ENHANCED_SETUP_SYNC_CONN as broken as it doesn't seem to
3421          * work with the likes of HSP/HFP mSBC.
3422          */
3423         set_bit(HCI_QUIRK_BROKEN_ENHANCED_SETUP_SYNC_CONN, &hdev->quirks);
3424
3425         return 0;
3426 }
3427
3428 static inline int __set_diag_interface(struct hci_dev *hdev)
3429 {
3430         struct btusb_data *data = hci_get_drvdata(hdev);
3431         struct usb_interface *intf = data->diag;
3432         int i;
3433
3434         if (!data->diag)
3435                 return -ENODEV;
3436
3437         data->diag_tx_ep = NULL;
3438         data->diag_rx_ep = NULL;
3439
3440         for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
3441                 struct usb_endpoint_descriptor *ep_desc;
3442
3443                 ep_desc = &intf->cur_altsetting->endpoint[i].desc;
3444
3445                 if (!data->diag_tx_ep && usb_endpoint_is_bulk_out(ep_desc)) {
3446                         data->diag_tx_ep = ep_desc;
3447                         continue;
3448                 }
3449
3450                 if (!data->diag_rx_ep && usb_endpoint_is_bulk_in(ep_desc)) {
3451                         data->diag_rx_ep = ep_desc;
3452                         continue;
3453                 }
3454         }
3455
3456         if (!data->diag_tx_ep || !data->diag_rx_ep) {
3457                 bt_dev_err(hdev, "invalid diagnostic descriptors");
3458                 return -ENODEV;
3459         }
3460
3461         return 0;
3462 }
3463
3464 static struct urb *alloc_diag_urb(struct hci_dev *hdev, bool enable)
3465 {
3466         struct btusb_data *data = hci_get_drvdata(hdev);
3467         struct sk_buff *skb;
3468         struct urb *urb;
3469         unsigned int pipe;
3470
3471         if (!data->diag_tx_ep)
3472                 return ERR_PTR(-ENODEV);
3473
3474         urb = usb_alloc_urb(0, GFP_KERNEL);
3475         if (!urb)
3476                 return ERR_PTR(-ENOMEM);
3477
3478         skb = bt_skb_alloc(2, GFP_KERNEL);
3479         if (!skb) {
3480                 usb_free_urb(urb);
3481                 return ERR_PTR(-ENOMEM);
3482         }
3483
3484         skb_put_u8(skb, 0xf0);
3485         skb_put_u8(skb, enable);
3486
3487         pipe = usb_sndbulkpipe(data->udev, data->diag_tx_ep->bEndpointAddress);
3488
3489         usb_fill_bulk_urb(urb, data->udev, pipe,
3490                           skb->data, skb->len, btusb_tx_complete, skb);
3491
3492         skb->dev = (void *)hdev;
3493
3494         return urb;
3495 }
3496
3497 static int btusb_bcm_set_diag(struct hci_dev *hdev, bool enable)
3498 {
3499         struct btusb_data *data = hci_get_drvdata(hdev);
3500         struct urb *urb;
3501
3502         if (!data->diag)
3503                 return -ENODEV;
3504
3505         if (!test_bit(HCI_RUNNING, &hdev->flags))
3506                 return -ENETDOWN;
3507
3508         urb = alloc_diag_urb(hdev, enable);
3509         if (IS_ERR(urb))
3510                 return PTR_ERR(urb);
3511
3512         return submit_or_queue_tx_urb(hdev, urb);
3513 }
3514
3515 #ifdef CONFIG_PM
3516 static irqreturn_t btusb_oob_wake_handler(int irq, void *priv)
3517 {
3518         struct btusb_data *data = priv;
3519
3520         pm_wakeup_event(&data->udev->dev, 0);
3521         pm_system_wakeup();
3522
3523         /* Disable only if not already disabled (keep it balanced) */
3524         if (test_and_clear_bit(BTUSB_OOB_WAKE_ENABLED, &data->flags)) {
3525                 disable_irq_nosync(irq);
3526                 disable_irq_wake(irq);
3527         }
3528         return IRQ_HANDLED;
3529 }
3530
3531 static const struct of_device_id btusb_match_table[] = {
3532         { .compatible = "usb1286,204e" },
3533         { .compatible = "usbcf3,e300" }, /* QCA6174A */
3534         { .compatible = "usb4ca,301a" }, /* QCA6174A (Lite-On) */
3535         { }
3536 };
3537 MODULE_DEVICE_TABLE(of, btusb_match_table);
3538
3539 /* Use an oob wakeup pin? */
3540 static int btusb_config_oob_wake(struct hci_dev *hdev)
3541 {
3542         struct btusb_data *data = hci_get_drvdata(hdev);
3543         struct device *dev = &data->udev->dev;
3544         int irq, ret;
3545
3546         clear_bit(BTUSB_OOB_WAKE_ENABLED, &data->flags);
3547
3548         if (!of_match_device(btusb_match_table, dev))
3549                 return 0;
3550
3551         /* Move on if no IRQ specified */
3552         irq = of_irq_get_byname(dev->of_node, "wakeup");
3553         if (irq <= 0) {
3554                 bt_dev_dbg(hdev, "%s: no OOB Wakeup IRQ in DT", __func__);
3555                 return 0;
3556         }
3557
3558         irq_set_status_flags(irq, IRQ_NOAUTOEN);
3559         ret = devm_request_irq(&hdev->dev, irq, btusb_oob_wake_handler,
3560                                0, "OOB Wake-on-BT", data);
3561         if (ret) {
3562                 bt_dev_err(hdev, "%s: IRQ request failed", __func__);
3563                 return ret;
3564         }
3565
3566         ret = device_init_wakeup(dev, true);
3567         if (ret) {
3568                 bt_dev_err(hdev, "%s: failed to init_wakeup", __func__);
3569                 return ret;
3570         }
3571
3572         data->oob_wake_irq = irq;
3573         bt_dev_info(hdev, "OOB Wake-on-BT configured at IRQ %u", irq);
3574         return 0;
3575 }
3576 #endif
3577
3578 static void btusb_check_needs_reset_resume(struct usb_interface *intf)
3579 {
3580         if (dmi_check_system(btusb_needs_reset_resume_table))
3581                 interface_to_usbdev(intf)->quirks |= USB_QUIRK_RESET_RESUME;
3582 }
3583
3584 static bool btusb_wakeup(struct hci_dev *hdev)
3585 {
3586         struct btusb_data *data = hci_get_drvdata(hdev);
3587
3588         return device_may_wakeup(&data->udev->dev);
3589 }
3590
3591 static int btusb_shutdown_qca(struct hci_dev *hdev)
3592 {
3593         struct sk_buff *skb;
3594
3595         skb = __hci_cmd_sync(hdev, HCI_OP_RESET, 0, NULL, HCI_INIT_TIMEOUT);
3596         if (IS_ERR(skb)) {
3597                 bt_dev_err(hdev, "HCI reset during shutdown failed");
3598                 return PTR_ERR(skb);
3599         }
3600         kfree_skb(skb);
3601
3602         return 0;
3603 }
3604
3605 static ssize_t force_poll_sync_read(struct file *file, char __user *user_buf,
3606                                     size_t count, loff_t *ppos)
3607 {
3608         struct btusb_data *data = file->private_data;
3609         char buf[3];
3610
3611         buf[0] = data->poll_sync ? 'Y' : 'N';
3612         buf[1] = '\n';
3613         buf[2] = '\0';
3614         return simple_read_from_buffer(user_buf, count, ppos, buf, 2);
3615 }
3616
3617 static ssize_t force_poll_sync_write(struct file *file,
3618                                      const char __user *user_buf,
3619                                      size_t count, loff_t *ppos)
3620 {
3621         struct btusb_data *data = file->private_data;
3622         bool enable;
3623         int err;
3624
3625         err = kstrtobool_from_user(user_buf, count, &enable);
3626         if (err)
3627                 return err;
3628
3629         /* Only allow changes while the adapter is down */
3630         if (test_bit(HCI_UP, &data->hdev->flags))
3631                 return -EPERM;
3632
3633         if (data->poll_sync == enable)
3634                 return -EALREADY;
3635
3636         data->poll_sync = enable;
3637
3638         return count;
3639 }
3640
3641 static const struct file_operations force_poll_sync_fops = {
3642         .open           = simple_open,
3643         .read           = force_poll_sync_read,
3644         .write          = force_poll_sync_write,
3645         .llseek         = default_llseek,
3646 };
3647
3648 static int btusb_probe(struct usb_interface *intf,
3649                        const struct usb_device_id *id)
3650 {
3651         struct usb_endpoint_descriptor *ep_desc;
3652         struct gpio_desc *reset_gpio;
3653         struct btusb_data *data;
3654         struct hci_dev *hdev;
3655         unsigned ifnum_base;
3656         int i, err, priv_size;
3657
3658         BT_DBG("intf %p id %p", intf, id);
3659
3660         if ((id->driver_info & BTUSB_IFNUM_2) &&
3661             (intf->cur_altsetting->desc.bInterfaceNumber != 0) &&
3662             (intf->cur_altsetting->desc.bInterfaceNumber != 2))
3663                 return -ENODEV;
3664
3665         ifnum_base = intf->cur_altsetting->desc.bInterfaceNumber;
3666
3667         if (!id->driver_info) {
3668                 const struct usb_device_id *match;
3669
3670                 match = usb_match_id(intf, quirks_table);
3671                 if (match)
3672                         id = match;
3673         }
3674
3675         if (id->driver_info == BTUSB_IGNORE)
3676                 return -ENODEV;
3677
3678         if (id->driver_info & BTUSB_ATH3012) {
3679                 struct usb_device *udev = interface_to_usbdev(intf);
3680
3681                 /* Old firmware would otherwise let ath3k driver load
3682                  * patch and sysconfig files
3683                  */
3684                 if (le16_to_cpu(udev->descriptor.bcdDevice) <= 0x0001 &&
3685                     !btusb_qca_need_patch(udev))
3686                         return -ENODEV;
3687         }
3688
3689         data = devm_kzalloc(&intf->dev, sizeof(*data), GFP_KERNEL);
3690         if (!data)
3691                 return -ENOMEM;
3692
3693         for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
3694                 ep_desc = &intf->cur_altsetting->endpoint[i].desc;
3695
3696                 if (!data->intr_ep && usb_endpoint_is_int_in(ep_desc)) {
3697                         data->intr_ep = ep_desc;
3698                         continue;
3699                 }
3700
3701                 if (!data->bulk_tx_ep && usb_endpoint_is_bulk_out(ep_desc)) {
3702                         data->bulk_tx_ep = ep_desc;
3703                         continue;
3704                 }
3705
3706                 if (!data->bulk_rx_ep && usb_endpoint_is_bulk_in(ep_desc)) {
3707                         data->bulk_rx_ep = ep_desc;
3708                         continue;
3709                 }
3710         }
3711
3712         if (!data->intr_ep || !data->bulk_tx_ep || !data->bulk_rx_ep)
3713                 return -ENODEV;
3714
3715         if (id->driver_info & BTUSB_AMP) {
3716                 data->cmdreq_type = USB_TYPE_CLASS | 0x01;
3717                 data->cmdreq = 0x2b;
3718         } else {
3719                 data->cmdreq_type = USB_TYPE_CLASS;
3720                 data->cmdreq = 0x00;
3721         }
3722
3723         data->udev = interface_to_usbdev(intf);
3724         data->intf = intf;
3725
3726         INIT_WORK(&data->work, btusb_work);
3727         INIT_WORK(&data->waker, btusb_waker);
3728         INIT_DELAYED_WORK(&data->rx_work, btusb_rx_work);
3729
3730         skb_queue_head_init(&data->acl_q);
3731
3732         init_usb_anchor(&data->deferred);
3733         init_usb_anchor(&data->tx_anchor);
3734         spin_lock_init(&data->txlock);
3735
3736         init_usb_anchor(&data->intr_anchor);
3737         init_usb_anchor(&data->bulk_anchor);
3738         init_usb_anchor(&data->isoc_anchor);
3739         init_usb_anchor(&data->diag_anchor);
3740         init_usb_anchor(&data->ctrl_anchor);
3741         spin_lock_init(&data->rxlock);
3742
3743         priv_size = 0;
3744
3745         data->recv_event = hci_recv_frame;
3746         data->recv_bulk = btusb_recv_bulk;
3747
3748         if (id->driver_info & BTUSB_INTEL_COMBINED) {
3749                 /* Allocate extra space for Intel device */
3750                 priv_size += sizeof(struct btintel_data);
3751
3752                 /* Override the rx handlers */
3753                 data->recv_event = btintel_recv_event;
3754                 data->recv_bulk = btusb_recv_bulk_intel;
3755         } else if (id->driver_info & BTUSB_REALTEK) {
3756                 /* Allocate extra space for Realtek device */
3757                 priv_size += sizeof(struct btrealtek_data);
3758
3759                 data->recv_event = btusb_recv_event_realtek;
3760         } else if (id->driver_info & BTUSB_MEDIATEK) {
3761                 /* Allocate extra space for Mediatek device */
3762                 priv_size += sizeof(struct btmtk_data);
3763         }
3764
3765         data->recv_acl = hci_recv_frame;
3766
3767         hdev = hci_alloc_dev_priv(priv_size);
3768         if (!hdev)
3769                 return -ENOMEM;
3770
3771         hdev->bus = HCI_USB;
3772         hci_set_drvdata(hdev, data);
3773
3774         data->hdev = hdev;
3775
3776         SET_HCIDEV_DEV(hdev, &intf->dev);
3777
3778         reset_gpio = gpiod_get_optional(&data->udev->dev, "reset",
3779                                         GPIOD_OUT_LOW);
3780         if (IS_ERR(reset_gpio)) {
3781                 err = PTR_ERR(reset_gpio);
3782                 goto out_free_dev;
3783         } else if (reset_gpio) {
3784                 data->reset_gpio = reset_gpio;
3785         }
3786
3787         hdev->open   = btusb_open;
3788         hdev->close  = btusb_close;
3789         hdev->flush  = btusb_flush;
3790         hdev->send   = btusb_send_frame;
3791         hdev->notify = btusb_notify;
3792         hdev->wakeup = btusb_wakeup;
3793
3794 #ifdef CONFIG_PM
3795         err = btusb_config_oob_wake(hdev);
3796         if (err)
3797                 goto out_free_dev;
3798
3799         /* Marvell devices may need a specific chip configuration */
3800         if (id->driver_info & BTUSB_MARVELL && data->oob_wake_irq) {
3801                 err = marvell_config_oob_wake(hdev);
3802                 if (err)
3803                         goto out_free_dev;
3804         }
3805 #endif
3806         if (id->driver_info & BTUSB_CW6622)
3807                 set_bit(HCI_QUIRK_BROKEN_STORED_LINK_KEY, &hdev->quirks);
3808
3809         if (id->driver_info & BTUSB_BCM2045)
3810                 set_bit(HCI_QUIRK_BROKEN_STORED_LINK_KEY, &hdev->quirks);
3811
3812         if (id->driver_info & BTUSB_BCM92035)
3813                 hdev->setup = btusb_setup_bcm92035;
3814
3815         if (IS_ENABLED(CONFIG_BT_HCIBTUSB_BCM) &&
3816             (id->driver_info & BTUSB_BCM_PATCHRAM)) {
3817                 hdev->manufacturer = 15;
3818                 hdev->setup = btbcm_setup_patchram;
3819                 hdev->set_diag = btusb_bcm_set_diag;
3820                 hdev->set_bdaddr = btbcm_set_bdaddr;
3821
3822                 /* Broadcom LM_DIAG Interface numbers are hardcoded */
3823                 data->diag = usb_ifnum_to_if(data->udev, ifnum_base + 2);
3824         }
3825
3826         if (IS_ENABLED(CONFIG_BT_HCIBTUSB_BCM) &&
3827             (id->driver_info & BTUSB_BCM_APPLE)) {
3828                 hdev->manufacturer = 15;
3829                 hdev->setup = btbcm_setup_apple;
3830                 hdev->set_diag = btusb_bcm_set_diag;
3831
3832                 /* Broadcom LM_DIAG Interface numbers are hardcoded */
3833                 data->diag = usb_ifnum_to_if(data->udev, ifnum_base + 2);
3834         }
3835
3836         /* Combined Intel Device setup to support multiple setup routine */
3837         if (id->driver_info & BTUSB_INTEL_COMBINED) {
3838                 err = btintel_configure_setup(hdev, btusb_driver.name);
3839                 if (err)
3840                         goto out_free_dev;
3841
3842                 /* Transport specific configuration */
3843                 hdev->send = btusb_send_frame_intel;
3844                 hdev->cmd_timeout = btusb_intel_cmd_timeout;
3845
3846                 if (id->driver_info & BTUSB_INTEL_NO_WBS_SUPPORT)
3847                         btintel_set_flag(hdev, INTEL_ROM_LEGACY_NO_WBS_SUPPORT);
3848
3849                 if (id->driver_info & BTUSB_INTEL_BROKEN_INITIAL_NCMD)
3850                         btintel_set_flag(hdev, INTEL_BROKEN_INITIAL_NCMD);
3851
3852                 if (id->driver_info & BTUSB_INTEL_BROKEN_SHUTDOWN_LED)
3853                         btintel_set_flag(hdev, INTEL_BROKEN_SHUTDOWN_LED);
3854         }
3855
3856         if (id->driver_info & BTUSB_MARVELL)
3857                 hdev->set_bdaddr = btusb_set_bdaddr_marvell;
3858
3859         if (IS_ENABLED(CONFIG_BT_HCIBTUSB_MTK) &&
3860             (id->driver_info & BTUSB_MEDIATEK)) {
3861                 hdev->setup = btusb_mtk_setup;
3862                 hdev->shutdown = btusb_mtk_shutdown;
3863                 hdev->manufacturer = 70;
3864                 hdev->cmd_timeout = btmtk_reset_sync;
3865                 hdev->set_bdaddr = btmtk_set_bdaddr;
3866                 hdev->send = btusb_send_frame_mtk;
3867                 set_bit(HCI_QUIRK_BROKEN_ENHANCED_SETUP_SYNC_CONN, &hdev->quirks);
3868                 set_bit(HCI_QUIRK_NON_PERSISTENT_SETUP, &hdev->quirks);
3869                 data->recv_acl = btmtk_usb_recv_acl;
3870                 data->suspend = btmtk_usb_suspend;
3871                 data->resume = btmtk_usb_resume;
3872                 data->disconnect = btusb_mtk_disconnect;
3873         }
3874
3875         if (id->driver_info & BTUSB_SWAVE) {
3876                 set_bit(HCI_QUIRK_FIXUP_INQUIRY_MODE, &hdev->quirks);
3877                 set_bit(HCI_QUIRK_BROKEN_LOCAL_COMMANDS, &hdev->quirks);
3878         }
3879
3880         if (id->driver_info & BTUSB_INTEL_BOOT) {
3881                 hdev->manufacturer = 2;
3882                 set_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks);
3883         }
3884
3885         if (id->driver_info & BTUSB_ATH3012) {
3886                 data->setup_on_usb = btusb_setup_qca;
3887                 hdev->set_bdaddr = btusb_set_bdaddr_ath3012;
3888                 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks);
3889                 set_bit(HCI_QUIRK_STRICT_DUPLICATE_FILTER, &hdev->quirks);
3890         }
3891
3892         if (id->driver_info & BTUSB_QCA_ROME) {
3893                 data->setup_on_usb = btusb_setup_qca;
3894                 hdev->shutdown = btusb_shutdown_qca;
3895                 hdev->set_bdaddr = btusb_set_bdaddr_ath3012;
3896                 hdev->cmd_timeout = btusb_qca_cmd_timeout;
3897                 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks);
3898                 btusb_check_needs_reset_resume(intf);
3899         }
3900
3901         if (id->driver_info & BTUSB_QCA_WCN6855) {
3902                 data->qca_dump.id_vendor = id->idVendor;
3903                 data->qca_dump.id_product = id->idProduct;
3904                 data->recv_event = btusb_recv_evt_qca;
3905                 data->recv_acl = btusb_recv_acl_qca;
3906                 hci_devcd_register(hdev, btusb_coredump_qca, btusb_dump_hdr_qca, NULL);
3907                 data->setup_on_usb = btusb_setup_qca;
3908                 hdev->shutdown = btusb_shutdown_qca;
3909                 hdev->set_bdaddr = btusb_set_bdaddr_wcn6855;
3910                 hdev->cmd_timeout = btusb_qca_cmd_timeout;
3911                 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks);
3912                 hci_set_msft_opcode(hdev, 0xFD70);
3913         }
3914
3915         if (id->driver_info & BTUSB_AMP) {
3916                 /* AMP controllers do not support SCO packets */
3917                 data->isoc = NULL;
3918         } else {
3919                 /* Interface orders are hardcoded in the specification */
3920                 data->isoc = usb_ifnum_to_if(data->udev, ifnum_base + 1);
3921                 data->isoc_ifnum = ifnum_base + 1;
3922         }
3923
3924         if (IS_ENABLED(CONFIG_BT_HCIBTUSB_RTL) &&
3925             (id->driver_info & BTUSB_REALTEK)) {
3926                 btrtl_set_driver_name(hdev, btusb_driver.name);
3927                 hdev->setup = btusb_setup_realtek;
3928                 hdev->shutdown = btrtl_shutdown_realtek;
3929                 hdev->cmd_timeout = btusb_rtl_cmd_timeout;
3930                 hdev->hw_error = btusb_rtl_hw_error;
3931
3932                 /* Realtek devices need to set remote wakeup on auto-suspend */
3933                 set_bit(BTUSB_WAKEUP_AUTOSUSPEND, &data->flags);
3934                 set_bit(BTUSB_USE_ALT3_FOR_WBS, &data->flags);
3935         }
3936
3937         if (id->driver_info & BTUSB_ACTIONS_SEMI) {
3938                 /* Support is advertised, but not implemented */
3939                 set_bit(HCI_QUIRK_BROKEN_ERR_DATA_REPORTING, &hdev->quirks);
3940                 set_bit(HCI_QUIRK_BROKEN_READ_TRANSMIT_POWER, &hdev->quirks);
3941                 set_bit(HCI_QUIRK_BROKEN_SET_RPA_TIMEOUT, &hdev->quirks);
3942                 set_bit(HCI_QUIRK_BROKEN_EXT_SCAN, &hdev->quirks);
3943                 set_bit(HCI_QUIRK_BROKEN_READ_ENC_KEY_SIZE, &hdev->quirks);
3944                 set_bit(HCI_QUIRK_BROKEN_EXT_CREATE_CONN, &hdev->quirks);
3945                 set_bit(HCI_QUIRK_BROKEN_WRITE_AUTH_PAYLOAD_TIMEOUT, &hdev->quirks);
3946         }
3947
3948         if (!reset)
3949                 set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
3950
3951         if (force_scofix || id->driver_info & BTUSB_WRONG_SCO_MTU) {
3952                 if (!disable_scofix)
3953                         set_bit(HCI_QUIRK_FIXUP_BUFFER_SIZE, &hdev->quirks);
3954         }
3955
3956         if (id->driver_info & BTUSB_BROKEN_ISOC)
3957                 data->isoc = NULL;
3958
3959         if (id->driver_info & BTUSB_WIDEBAND_SPEECH)
3960                 set_bit(HCI_QUIRK_WIDEBAND_SPEECH_SUPPORTED, &hdev->quirks);
3961
3962         if (id->driver_info & BTUSB_INVALID_LE_STATES)
3963                 set_bit(HCI_QUIRK_BROKEN_LE_STATES, &hdev->quirks);
3964
3965         if (id->driver_info & BTUSB_DIGIANSWER) {
3966                 data->cmdreq_type = USB_TYPE_VENDOR;
3967                 set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
3968         }
3969
3970         if (id->driver_info & BTUSB_CSR) {
3971                 struct usb_device *udev = data->udev;
3972                 u16 bcdDevice = le16_to_cpu(udev->descriptor.bcdDevice);
3973
3974                 /* Old firmware would otherwise execute USB reset */
3975                 if (bcdDevice < 0x117)
3976                         set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
3977
3978                 /* This must be set first in case we disable it for fakes */
3979                 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks);
3980
3981                 /* Fake CSR devices with broken commands */
3982                 if (le16_to_cpu(udev->descriptor.idVendor)  == 0x0a12 &&
3983                     le16_to_cpu(udev->descriptor.idProduct) == 0x0001)
3984                         hdev->setup = btusb_setup_csr;
3985         }
3986
3987         if (id->driver_info & BTUSB_SNIFFER) {
3988                 struct usb_device *udev = data->udev;
3989
3990                 /* New sniffer firmware has crippled HCI interface */
3991                 if (le16_to_cpu(udev->descriptor.bcdDevice) > 0x997)
3992                         set_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks);
3993         }
3994
3995         if (id->driver_info & BTUSB_INTEL_BOOT) {
3996                 /* A bug in the bootloader causes that interrupt interface is
3997                  * only enabled after receiving SetInterface(0, AltSetting=0).
3998                  */
3999                 err = usb_set_interface(data->udev, 0, 0);
4000                 if (err < 0) {
4001                         BT_ERR("failed to set interface 0, alt 0 %d", err);
4002                         goto out_free_dev;
4003                 }
4004         }
4005
4006         if (data->isoc) {
4007                 err = usb_driver_claim_interface(&btusb_driver,
4008                                                  data->isoc, data);
4009                 if (err < 0)
4010                         goto out_free_dev;
4011         }
4012
4013         if (IS_ENABLED(CONFIG_BT_HCIBTUSB_BCM) && data->diag) {
4014                 if (!usb_driver_claim_interface(&btusb_driver,
4015                                                 data->diag, data))
4016                         __set_diag_interface(hdev);
4017                 else
4018                         data->diag = NULL;
4019         }
4020
4021         if (enable_autosuspend)
4022                 usb_enable_autosuspend(data->udev);
4023
4024         data->poll_sync = enable_poll_sync;
4025
4026         err = hci_register_dev(hdev);
4027         if (err < 0)
4028                 goto out_free_dev;
4029
4030         usb_set_intfdata(intf, data);
4031
4032         debugfs_create_file("force_poll_sync", 0644, hdev->debugfs, data,
4033                             &force_poll_sync_fops);
4034
4035         return 0;
4036
4037 out_free_dev:
4038         if (data->reset_gpio)
4039                 gpiod_put(data->reset_gpio);
4040         hci_free_dev(hdev);
4041         return err;
4042 }
4043
4044 static void btusb_disconnect(struct usb_interface *intf)
4045 {
4046         struct btusb_data *data = usb_get_intfdata(intf);
4047         struct hci_dev *hdev;
4048
4049         BT_DBG("intf %p", intf);
4050
4051         if (!data)
4052                 return;
4053
4054         hdev = data->hdev;
4055         usb_set_intfdata(data->intf, NULL);
4056
4057         if (data->isoc)
4058                 usb_set_intfdata(data->isoc, NULL);
4059
4060         if (data->diag)
4061                 usb_set_intfdata(data->diag, NULL);
4062
4063         if (data->disconnect)
4064                 data->disconnect(hdev);
4065
4066         hci_unregister_dev(hdev);
4067
4068         if (intf == data->intf) {
4069                 if (data->isoc)
4070                         usb_driver_release_interface(&btusb_driver, data->isoc);
4071                 if (data->diag)
4072                         usb_driver_release_interface(&btusb_driver, data->diag);
4073         } else if (intf == data->isoc) {
4074                 if (data->diag)
4075                         usb_driver_release_interface(&btusb_driver, data->diag);
4076                 usb_driver_release_interface(&btusb_driver, data->intf);
4077         } else if (intf == data->diag) {
4078                 usb_driver_release_interface(&btusb_driver, data->intf);
4079                 if (data->isoc)
4080                         usb_driver_release_interface(&btusb_driver, data->isoc);
4081         }
4082
4083         if (data->oob_wake_irq)
4084                 device_init_wakeup(&data->udev->dev, false);
4085
4086         if (data->reset_gpio)
4087                 gpiod_put(data->reset_gpio);
4088
4089         hci_free_dev(hdev);
4090 }
4091
4092 #ifdef CONFIG_PM
4093 static int btusb_suspend(struct usb_interface *intf, pm_message_t message)
4094 {
4095         struct btusb_data *data = usb_get_intfdata(intf);
4096
4097         BT_DBG("intf %p", intf);
4098
4099         /* Don't auto-suspend if there are connections; external suspend calls
4100          * shall never fail.
4101          */
4102         if (PMSG_IS_AUTO(message) && hci_conn_count(data->hdev))
4103                 return -EBUSY;
4104
4105         if (data->suspend_count++)
4106                 return 0;
4107
4108         spin_lock_irq(&data->txlock);
4109         if (!(PMSG_IS_AUTO(message) && data->tx_in_flight)) {
4110                 set_bit(BTUSB_SUSPENDING, &data->flags);
4111                 spin_unlock_irq(&data->txlock);
4112         } else {
4113                 spin_unlock_irq(&data->txlock);
4114                 data->suspend_count--;
4115                 return -EBUSY;
4116         }
4117
4118         cancel_work_sync(&data->work);
4119
4120         if (data->suspend)
4121                 data->suspend(data->hdev);
4122
4123         btusb_stop_traffic(data);
4124         usb_kill_anchored_urbs(&data->tx_anchor);
4125
4126         if (data->oob_wake_irq && device_may_wakeup(&data->udev->dev)) {
4127                 set_bit(BTUSB_OOB_WAKE_ENABLED, &data->flags);
4128                 enable_irq_wake(data->oob_wake_irq);
4129                 enable_irq(data->oob_wake_irq);
4130         }
4131
4132         /* For global suspend, Realtek devices lose the loaded fw
4133          * in them. But for autosuspend, firmware should remain.
4134          * Actually, it depends on whether the usb host sends
4135          * set feature (enable wakeup) or not.
4136          */
4137         if (test_bit(BTUSB_WAKEUP_AUTOSUSPEND, &data->flags)) {
4138                 if (PMSG_IS_AUTO(message) &&
4139                     device_can_wakeup(&data->udev->dev))
4140                         data->udev->do_remote_wakeup = 1;
4141                 else if (!PMSG_IS_AUTO(message) &&
4142                          !device_may_wakeup(&data->udev->dev)) {
4143                         data->udev->do_remote_wakeup = 0;
4144                         data->udev->reset_resume = 1;
4145                 }
4146         }
4147
4148         return 0;
4149 }
4150
4151 static void play_deferred(struct btusb_data *data)
4152 {
4153         struct urb *urb;
4154         int err;
4155
4156         while ((urb = usb_get_from_anchor(&data->deferred))) {
4157                 usb_anchor_urb(urb, &data->tx_anchor);
4158
4159                 err = usb_submit_urb(urb, GFP_ATOMIC);
4160                 if (err < 0) {
4161                         if (err != -EPERM && err != -ENODEV)
4162                                 BT_ERR("%s urb %p submission failed (%d)",
4163                                        data->hdev->name, urb, -err);
4164                         kfree(urb->setup_packet);
4165                         usb_unanchor_urb(urb);
4166                         usb_free_urb(urb);
4167                         break;
4168                 }
4169
4170                 data->tx_in_flight++;
4171                 usb_free_urb(urb);
4172         }
4173
4174         /* Cleanup the rest deferred urbs. */
4175         while ((urb = usb_get_from_anchor(&data->deferred))) {
4176                 kfree(urb->setup_packet);
4177                 usb_free_urb(urb);
4178         }
4179 }
4180
4181 static int btusb_resume(struct usb_interface *intf)
4182 {
4183         struct btusb_data *data = usb_get_intfdata(intf);
4184         struct hci_dev *hdev = data->hdev;
4185         int err = 0;
4186
4187         BT_DBG("intf %p", intf);
4188
4189         if (--data->suspend_count)
4190                 return 0;
4191
4192         /* Disable only if not already disabled (keep it balanced) */
4193         if (test_and_clear_bit(BTUSB_OOB_WAKE_ENABLED, &data->flags)) {
4194                 disable_irq(data->oob_wake_irq);
4195                 disable_irq_wake(data->oob_wake_irq);
4196         }
4197
4198         if (!test_bit(HCI_RUNNING, &hdev->flags))
4199                 goto done;
4200
4201         if (test_bit(BTUSB_INTR_RUNNING, &data->flags)) {
4202                 err = btusb_submit_intr_urb(hdev, GFP_NOIO);
4203                 if (err < 0) {
4204                         clear_bit(BTUSB_INTR_RUNNING, &data->flags);
4205                         goto failed;
4206                 }
4207         }
4208
4209         if (test_bit(BTUSB_BULK_RUNNING, &data->flags)) {
4210                 err = btusb_submit_bulk_urb(hdev, GFP_NOIO);
4211                 if (err < 0) {
4212                         clear_bit(BTUSB_BULK_RUNNING, &data->flags);
4213                         goto failed;
4214                 }
4215
4216                 btusb_submit_bulk_urb(hdev, GFP_NOIO);
4217         }
4218
4219         if (test_bit(BTUSB_ISOC_RUNNING, &data->flags)) {
4220                 if (btusb_submit_isoc_urb(hdev, GFP_NOIO) < 0)
4221                         clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
4222                 else
4223                         btusb_submit_isoc_urb(hdev, GFP_NOIO);
4224         }
4225
4226         if (data->resume)
4227                 data->resume(hdev);
4228
4229         spin_lock_irq(&data->txlock);
4230         play_deferred(data);
4231         clear_bit(BTUSB_SUSPENDING, &data->flags);
4232         spin_unlock_irq(&data->txlock);
4233         schedule_work(&data->work);
4234
4235         return 0;
4236
4237 failed:
4238         usb_scuttle_anchored_urbs(&data->deferred);
4239 done:
4240         spin_lock_irq(&data->txlock);
4241         clear_bit(BTUSB_SUSPENDING, &data->flags);
4242         spin_unlock_irq(&data->txlock);
4243
4244         return err;
4245 }
4246 #endif
4247
4248 #ifdef CONFIG_DEV_COREDUMP
4249 static void btusb_coredump(struct device *dev)
4250 {
4251         struct btusb_data *data = dev_get_drvdata(dev);
4252         struct hci_dev *hdev = data->hdev;
4253
4254         if (hdev->dump.coredump)
4255                 hdev->dump.coredump(hdev);
4256 }
4257 #endif
4258
4259 static struct usb_driver btusb_driver = {
4260         .name           = "btusb",
4261         .probe          = btusb_probe,
4262         .disconnect     = btusb_disconnect,
4263 #ifdef CONFIG_PM
4264         .suspend        = btusb_suspend,
4265         .resume         = btusb_resume,
4266 #endif
4267         .id_table       = btusb_table,
4268         .supports_autosuspend = 1,
4269         .disable_hub_initiated_lpm = 1,
4270
4271 #ifdef CONFIG_DEV_COREDUMP
4272         .driver = {
4273                 .coredump = btusb_coredump,
4274         },
4275 #endif
4276 };
4277
4278 module_usb_driver(btusb_driver);
4279
4280 module_param(disable_scofix, bool, 0644);
4281 MODULE_PARM_DESC(disable_scofix, "Disable fixup of wrong SCO buffer size");
4282
4283 module_param(force_scofix, bool, 0644);
4284 MODULE_PARM_DESC(force_scofix, "Force fixup of wrong SCO buffers size");
4285
4286 module_param(enable_autosuspend, bool, 0644);
4287 MODULE_PARM_DESC(enable_autosuspend, "Enable USB autosuspend by default");
4288
4289 module_param(reset, bool, 0644);
4290 MODULE_PARM_DESC(reset, "Send HCI reset command on initialization");
4291
4292 MODULE_AUTHOR("Marcel Holtmann <[email protected]>");
4293 MODULE_DESCRIPTION("Generic Bluetooth USB driver ver " VERSION);
4294 MODULE_VERSION(VERSION);
4295 MODULE_LICENSE("GPL");