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 <asm/unaligned.h>
  21
  22 #include <net/bluetooth/bluetooth.h>
  23 #include <net/bluetooth/hci_core.h>
  24
  25 #include "btintel.h"
  26 #include "btbcm.h"
  27 #include "btrtl.h"
  28 #include "btmtk.h"
  29
  30 #define VERSION "0.8"
  31
  32 static bool disable_scofix;
  33 static bool force_scofix;
  34 static bool enable_autosuspend = IS_ENABLED(CONFIG_BT_HCIBTUSB_AUTOSUSPEND);
  35 static bool enable_poll_sync = IS_ENABLED(CONFIG_BT_HCIBTUSB_POLL_SYNC);
  36 static bool reset = true;
  37
  38 static struct usb_driver btusb_driver;
  39
  40 #define BTUSB_IGNORE                    BIT(0)
  41 #define BTUSB_DIGIANSWER                BIT(1)
  42 #define BTUSB_CSR                       BIT(2)
  43 #define BTUSB_SNIFFER                   BIT(3)
  44 #define BTUSB_BCM92035                  BIT(4)
  45 #define BTUSB_BROKEN_ISOC               BIT(5)
  46 #define BTUSB_WRONG_SCO_MTU             BIT(6)
  47 #define BTUSB_ATH3012                   BIT(7)
  48 #define BTUSB_INTEL_COMBINED            BIT(8)
  49 #define BTUSB_INTEL_BOOT                BIT(9)
  50 #define BTUSB_BCM_PATCHRAM              BIT(10)
  51 #define BTUSB_MARVELL                   BIT(11)
  52 #define BTUSB_SWAVE                     BIT(12)
  53 #define BTUSB_AMP                       BIT(13)
  54 #define BTUSB_QCA_ROME                  BIT(14)
  55 #define BTUSB_BCM_APPLE                 BIT(15)
  56 #define BTUSB_REALTEK                   BIT(16)
  57 #define BTUSB_BCM2045                   BIT(17)
  58 #define BTUSB_IFNUM_2                   BIT(18)
  59 #define BTUSB_CW6622                    BIT(19)
  60 #define BTUSB_MEDIATEK                  BIT(20)
  61 #define BTUSB_WIDEBAND_SPEECH           BIT(21)
  62 #define BTUSB_VALID_LE_STATES           BIT(22)
  63 #define BTUSB_QCA_WCN6855               BIT(23)
  64 #define BTUSB_INTEL_BROKEN_SHUTDOWN_LED BIT(24)
  65 #define BTUSB_INTEL_BROKEN_INITIAL_NCMD BIT(25)
  66 #define BTUSB_INTEL_NO_WBS_SUPPORT      BIT(26)
  67 #define BTUSB_ACTIONS_SEMI              BIT(27)
  68
  69 static const struct usb_device_id btusb_table[] = {
  70         /* Generic Bluetooth USB device */
  71         { USB_DEVICE_INFO(0xe0, 0x01, 0x01) },
  72
  73         /* Generic Bluetooth AMP device */
  74         { USB_DEVICE_INFO(0xe0, 0x01, 0x04), .driver_info = BTUSB_AMP },
  75
  76         /* Generic Bluetooth USB interface */
  77         { USB_INTERFACE_INFO(0xe0, 0x01, 0x01) },
  78
  79         /* Apple-specific (Broadcom) devices */
  80         { USB_VENDOR_AND_INTERFACE_INFO(0x05ac, 0xff, 0x01, 0x01),
  81           .driver_info = BTUSB_BCM_APPLE | BTUSB_IFNUM_2 },
  82
  83         /* MediaTek MT76x0E */
  84         { USB_DEVICE(0x0e8d, 0x763f) },
  85
  86         /* Broadcom SoftSailing reporting vendor specific */
  87         { USB_DEVICE(0x0a5c, 0x21e1) },
  88
  89         /* Apple MacBookPro 7,1 */
  90         { USB_DEVICE(0x05ac, 0x8213) },
  91
  92         /* Apple iMac11,1 */
  93         { USB_DEVICE(0x05ac, 0x8215) },
  94
  95         /* Apple MacBookPro6,2 */
  96         { USB_DEVICE(0x05ac, 0x8218) },
  97
  98         /* Apple MacBookAir3,1, MacBookAir3,2 */
  99         { USB_DEVICE(0x05ac, 0x821b) },
 100
 101         /* Apple MacBookAir4,1 */
 102         { USB_DEVICE(0x05ac, 0x821f) },
 103
 104         /* Apple MacBookPro8,2 */
 105         { USB_DEVICE(0x05ac, 0x821a) },
 106
 107         /* Apple MacMini5,1 */
 108         { USB_DEVICE(0x05ac, 0x8281) },
 109
 110         /* AVM BlueFRITZ! USB v2.0 */
 111         { USB_DEVICE(0x057c, 0x3800), .driver_info = BTUSB_SWAVE },
 112
 113         /* Bluetooth Ultraport Module from IBM */
 114         { USB_DEVICE(0x04bf, 0x030a) },
 115
 116         /* ALPS Modules with non-standard id */
 117         { USB_DEVICE(0x044e, 0x3001) },
 118         { USB_DEVICE(0x044e, 0x3002) },
 119
 120         /* Ericsson with non-standard id */
 121         { USB_DEVICE(0x0bdb, 0x1002) },
 122
 123         /* Canyon CN-BTU1 with HID interfaces */
 124         { USB_DEVICE(0x0c10, 0x0000) },
 125
 126         /* Broadcom BCM20702B0 (Dynex/Insignia) */
 127         { USB_DEVICE(0x19ff, 0x0239), .driver_info = BTUSB_BCM_PATCHRAM },
 128
 129         /* Broadcom BCM43142A0 (Foxconn/Lenovo) */
 130         { USB_VENDOR_AND_INTERFACE_INFO(0x105b, 0xff, 0x01, 0x01),
 131           .driver_info = BTUSB_BCM_PATCHRAM },
 132
 133         /* Broadcom BCM920703 (HTC Vive) */
 134         { USB_VENDOR_AND_INTERFACE_INFO(0x0bb4, 0xff, 0x01, 0x01),
 135           .driver_info = BTUSB_BCM_PATCHRAM },
 136
 137         /* Foxconn - Hon Hai */
 138         { USB_VENDOR_AND_INTERFACE_INFO(0x0489, 0xff, 0x01, 0x01),
 139           .driver_info = BTUSB_BCM_PATCHRAM },
 140
 141         /* Lite-On Technology - Broadcom based */
 142         { USB_VENDOR_AND_INTERFACE_INFO(0x04ca, 0xff, 0x01, 0x01),
 143           .driver_info = BTUSB_BCM_PATCHRAM },
 144
 145         /* Broadcom devices with vendor specific id */
 146         { USB_VENDOR_AND_INTERFACE_INFO(0x0a5c, 0xff, 0x01, 0x01),
 147           .driver_info = BTUSB_BCM_PATCHRAM },
 148
 149         /* ASUSTek Computer - Broadcom based */
 150         { USB_VENDOR_AND_INTERFACE_INFO(0x0b05, 0xff, 0x01, 0x01),
 151           .driver_info = BTUSB_BCM_PATCHRAM },
 152
 153         /* Belkin F8065bf - Broadcom based */
 154         { USB_VENDOR_AND_INTERFACE_INFO(0x050d, 0xff, 0x01, 0x01),
 155           .driver_info = BTUSB_BCM_PATCHRAM },
 156
 157         /* IMC Networks - Broadcom based */
 158         { USB_VENDOR_AND_INTERFACE_INFO(0x13d3, 0xff, 0x01, 0x01),
 159           .driver_info = BTUSB_BCM_PATCHRAM },
 160
 161         /* Dell Computer - Broadcom based  */
 162         { USB_VENDOR_AND_INTERFACE_INFO(0x413c, 0xff, 0x01, 0x01),
 163           .driver_info = BTUSB_BCM_PATCHRAM },
 164
 165         /* Toshiba Corp - Broadcom based */
 166         { USB_VENDOR_AND_INTERFACE_INFO(0x0930, 0xff, 0x01, 0x01),
 167           .driver_info = BTUSB_BCM_PATCHRAM },
 168
 169         /* Intel Bluetooth USB Bootloader (RAM module) */
 170         { USB_DEVICE(0x8087, 0x0a5a),
 171           .driver_info = BTUSB_INTEL_BOOT | BTUSB_BROKEN_ISOC },
 172
 173         { }     /* Terminating entry */
 174 };
 175
 176 MODULE_DEVICE_TABLE(usb, btusb_table);
 177
 178 static const struct usb_device_id quirks_table[] = {
 179         /* CSR BlueCore devices */
 180         { USB_DEVICE(0x0a12, 0x0001), .driver_info = BTUSB_CSR },
 181
 182         /* Broadcom BCM2033 without firmware */
 183         { USB_DEVICE(0x0a5c, 0x2033), .driver_info = BTUSB_IGNORE },
 184
 185         /* Broadcom BCM2045 devices */
 186         { USB_DEVICE(0x0a5c, 0x2045), .driver_info = BTUSB_BCM2045 },
 187
 188         /* Atheros 3011 with sflash firmware */
 189         { USB_DEVICE(0x0489, 0xe027), .driver_info = BTUSB_IGNORE },
 190         { USB_DEVICE(0x0489, 0xe03d), .driver_info = BTUSB_IGNORE },
 191         { USB_DEVICE(0x04f2, 0xaff1), .driver_info = BTUSB_IGNORE },
 192         { USB_DEVICE(0x0930, 0x0215), .driver_info = BTUSB_IGNORE },
 193         { USB_DEVICE(0x0cf3, 0x3002), .driver_info = BTUSB_IGNORE },
 194         { USB_DEVICE(0x0cf3, 0xe019), .driver_info = BTUSB_IGNORE },
 195         { USB_DEVICE(0x13d3, 0x3304), .driver_info = BTUSB_IGNORE },
 196
 197         /* Atheros AR9285 Malbec with sflash firmware */
 198         { USB_DEVICE(0x03f0, 0x311d), .driver_info = BTUSB_IGNORE },
 199
 200         /* Atheros 3012 with sflash firmware */
 201         { USB_DEVICE(0x0489, 0xe04d), .driver_info = BTUSB_ATH3012 },
 202         { USB_DEVICE(0x0489, 0xe04e), .driver_info = BTUSB_ATH3012 },
 203         { USB_DEVICE(0x0489, 0xe056), .driver_info = BTUSB_ATH3012 },
 204         { USB_DEVICE(0x0489, 0xe057), .driver_info = BTUSB_ATH3012 },
 205         { USB_DEVICE(0x0489, 0xe05f), .driver_info = BTUSB_ATH3012 },
 206         { USB_DEVICE(0x0489, 0xe076), .driver_info = BTUSB_ATH3012 },
 207         { USB_DEVICE(0x0489, 0xe078), .driver_info = BTUSB_ATH3012 },
 208         { USB_DEVICE(0x0489, 0xe095), .driver_info = BTUSB_ATH3012 },
 209         { USB_DEVICE(0x04c5, 0x1330), .driver_info = BTUSB_ATH3012 },
 210         { USB_DEVICE(0x04ca, 0x3004), .driver_info = BTUSB_ATH3012 },
 211         { USB_DEVICE(0x04ca, 0x3005), .driver_info = BTUSB_ATH3012 },
 212         { USB_DEVICE(0x04ca, 0x3006), .driver_info = BTUSB_ATH3012 },
 213         { USB_DEVICE(0x04ca, 0x3007), .driver_info = BTUSB_ATH3012 },
 214         { USB_DEVICE(0x04ca, 0x3008), .driver_info = BTUSB_ATH3012 },
 215         { USB_DEVICE(0x04ca, 0x300b), .driver_info = BTUSB_ATH3012 },
 216         { USB_DEVICE(0x04ca, 0x300d), .driver_info = BTUSB_ATH3012 },
 217         { USB_DEVICE(0x04ca, 0x300f), .driver_info = BTUSB_ATH3012 },
 218         { USB_DEVICE(0x04ca, 0x3010), .driver_info = BTUSB_ATH3012 },
 219         { USB_DEVICE(0x04ca, 0x3014), .driver_info = BTUSB_ATH3012 },
 220         { USB_DEVICE(0x04ca, 0x3018), .driver_info = BTUSB_ATH3012 },
 221         { USB_DEVICE(0x0930, 0x0219), .driver_info = BTUSB_ATH3012 },
 222         { USB_DEVICE(0x0930, 0x021c), .driver_info = BTUSB_ATH3012 },
 223         { USB_DEVICE(0x0930, 0x0220), .driver_info = BTUSB_ATH3012 },
 224         { USB_DEVICE(0x0930, 0x0227), .driver_info = BTUSB_ATH3012 },
 225         { USB_DEVICE(0x0b05, 0x17d0), .driver_info = BTUSB_ATH3012 },
 226         { USB_DEVICE(0x0cf3, 0x0036), .driver_info = BTUSB_ATH3012 },
 227         { USB_DEVICE(0x0cf3, 0x3004), .driver_info = BTUSB_ATH3012 },
 228         { USB_DEVICE(0x0cf3, 0x3008), .driver_info = BTUSB_ATH3012 },
 229         { USB_DEVICE(0x0cf3, 0x311d), .driver_info = BTUSB_ATH3012 },
 230         { USB_DEVICE(0x0cf3, 0x311e), .driver_info = BTUSB_ATH3012 },
 231         { USB_DEVICE(0x0cf3, 0x311f), .driver_info = BTUSB_ATH3012 },
 232         { USB_DEVICE(0x0cf3, 0x3121), .driver_info = BTUSB_ATH3012 },
 233         { USB_DEVICE(0x0cf3, 0x817a), .driver_info = BTUSB_ATH3012 },
 234         { USB_DEVICE(0x0cf3, 0x817b), .driver_info = BTUSB_ATH3012 },
 235         { USB_DEVICE(0x0cf3, 0xe003), .driver_info = BTUSB_ATH3012 },
 236         { USB_DEVICE(0x0cf3, 0xe004), .driver_info = BTUSB_ATH3012 },
 237         { USB_DEVICE(0x0cf3, 0xe005), .driver_info = BTUSB_ATH3012 },
 238         { USB_DEVICE(0x0cf3, 0xe006), .driver_info = BTUSB_ATH3012 },
 239         { USB_DEVICE(0x13d3, 0x3362), .driver_info = BTUSB_ATH3012 },
 240         { USB_DEVICE(0x13d3, 0x3375), .driver_info = BTUSB_ATH3012 },
 241         { USB_DEVICE(0x13d3, 0x3393), .driver_info = BTUSB_ATH3012 },
 242         { USB_DEVICE(0x13d3, 0x3395), .driver_info = BTUSB_ATH3012 },
 243         { USB_DEVICE(0x13d3, 0x3402), .driver_info = BTUSB_ATH3012 },
 244         { USB_DEVICE(0x13d3, 0x3408), .driver_info = BTUSB_ATH3012 },
 245         { USB_DEVICE(0x13d3, 0x3423), .driver_info = BTUSB_ATH3012 },
 246         { USB_DEVICE(0x13d3, 0x3432), .driver_info = BTUSB_ATH3012 },
 247         { USB_DEVICE(0x13d3, 0x3472), .driver_info = BTUSB_ATH3012 },
 248         { USB_DEVICE(0x13d3, 0x3474), .driver_info = BTUSB_ATH3012 },
 249         { USB_DEVICE(0x13d3, 0x3487), .driver_info = BTUSB_ATH3012 },
 250         { USB_DEVICE(0x13d3, 0x3490), .driver_info = BTUSB_ATH3012 },
 251
 252         /* Atheros AR5BBU12 with sflash firmware */
 253         { USB_DEVICE(0x0489, 0xe02c), .driver_info = BTUSB_IGNORE },
 254
 255         /* Atheros AR5BBU12 with sflash firmware */
 256         { USB_DEVICE(0x0489, 0xe036), .driver_info = BTUSB_ATH3012 },
 257         { USB_DEVICE(0x0489, 0xe03c), .driver_info = BTUSB_ATH3012 },
 258
 259         /* QCA ROME chipset */
 260         { USB_DEVICE(0x0cf3, 0x535b), .driver_info = BTUSB_QCA_ROME |
 261                                                      BTUSB_WIDEBAND_SPEECH },
 262         { USB_DEVICE(0x0cf3, 0xe007), .driver_info = BTUSB_QCA_ROME |
 263                                                      BTUSB_WIDEBAND_SPEECH },
 264         { USB_DEVICE(0x0cf3, 0xe009), .driver_info = BTUSB_QCA_ROME |
 265                                                      BTUSB_WIDEBAND_SPEECH },
 266         { USB_DEVICE(0x0cf3, 0xe010), .driver_info = BTUSB_QCA_ROME |
 267                                                      BTUSB_WIDEBAND_SPEECH },
 268         { USB_DEVICE(0x0cf3, 0xe300), .driver_info = BTUSB_QCA_ROME |
 269                                                      BTUSB_WIDEBAND_SPEECH },
 270         { USB_DEVICE(0x0cf3, 0xe301), .driver_info = BTUSB_QCA_ROME |
 271                                                      BTUSB_WIDEBAND_SPEECH },
 272         { USB_DEVICE(0x0cf3, 0xe360), .driver_info = BTUSB_QCA_ROME |
 273                                                      BTUSB_WIDEBAND_SPEECH },
 274         { USB_DEVICE(0x0cf3, 0xe500), .driver_info = BTUSB_QCA_ROME |
 275                                                      BTUSB_WIDEBAND_SPEECH },
 276         { USB_DEVICE(0x0489, 0xe092), .driver_info = BTUSB_QCA_ROME |
 277                                                      BTUSB_WIDEBAND_SPEECH },
 278         { USB_DEVICE(0x0489, 0xe09f), .driver_info = BTUSB_QCA_ROME |
 279                                                      BTUSB_WIDEBAND_SPEECH },
 280         { USB_DEVICE(0x0489, 0xe0a2), .driver_info = BTUSB_QCA_ROME |
 281                                                      BTUSB_WIDEBAND_SPEECH },
 282         { USB_DEVICE(0x04ca, 0x3011), .driver_info = BTUSB_QCA_ROME |
 283                                                      BTUSB_WIDEBAND_SPEECH },
 284         { USB_DEVICE(0x04ca, 0x3015), .driver_info = BTUSB_QCA_ROME |
 285                                                      BTUSB_WIDEBAND_SPEECH },
 286         { USB_DEVICE(0x04ca, 0x3016), .driver_info = BTUSB_QCA_ROME |
 287                                                      BTUSB_WIDEBAND_SPEECH },
 288         { USB_DEVICE(0x04ca, 0x301a), .driver_info = BTUSB_QCA_ROME |
 289                                                      BTUSB_WIDEBAND_SPEECH },
 290         { USB_DEVICE(0x04ca, 0x3021), .driver_info = BTUSB_QCA_ROME |
 291                                                      BTUSB_WIDEBAND_SPEECH },
 292         { USB_DEVICE(0x13d3, 0x3491), .driver_info = BTUSB_QCA_ROME |
 293                                                      BTUSB_WIDEBAND_SPEECH },
 294         { USB_DEVICE(0x13d3, 0x3496), .driver_info = BTUSB_QCA_ROME |
 295                                                      BTUSB_WIDEBAND_SPEECH },
 296         { USB_DEVICE(0x13d3, 0x3501), .driver_info = BTUSB_QCA_ROME |
 297                                                      BTUSB_WIDEBAND_SPEECH },
 298
 299         /* QCA WCN6855 chipset */
 300         { USB_DEVICE(0x0cf3, 0xe600), .driver_info = BTUSB_QCA_WCN6855 |
 301                                                      BTUSB_WIDEBAND_SPEECH |
 302                                                      BTUSB_VALID_LE_STATES },
 303         { USB_DEVICE(0x0489, 0xe0cc), .driver_info = BTUSB_QCA_WCN6855 |
 304                                                      BTUSB_WIDEBAND_SPEECH |
 305                                                      BTUSB_VALID_LE_STATES },
 306         { USB_DEVICE(0x0489, 0xe0d6), .driver_info = BTUSB_QCA_WCN6855 |
 307                                                      BTUSB_WIDEBAND_SPEECH |
 308                                                      BTUSB_VALID_LE_STATES },
 309         { USB_DEVICE(0x0489, 0xe0e3), .driver_info = BTUSB_QCA_WCN6855 |
 310                                                      BTUSB_WIDEBAND_SPEECH |
 311                                                      BTUSB_VALID_LE_STATES },
 312         { USB_DEVICE(0x10ab, 0x9309), .driver_info = BTUSB_QCA_WCN6855 |
 313                                                      BTUSB_WIDEBAND_SPEECH |
 314                                                      BTUSB_VALID_LE_STATES },
 315         { USB_DEVICE(0x10ab, 0x9409), .driver_info = BTUSB_QCA_WCN6855 |
 316                                                      BTUSB_WIDEBAND_SPEECH |
 317                                                      BTUSB_VALID_LE_STATES },
 318         { USB_DEVICE(0x0489, 0xe0d0), .driver_info = BTUSB_QCA_WCN6855 |
 319                                                      BTUSB_WIDEBAND_SPEECH |
 320                                                      BTUSB_VALID_LE_STATES },
 321         { USB_DEVICE(0x10ab, 0x9108), .driver_info = BTUSB_QCA_WCN6855 |
 322                                                      BTUSB_WIDEBAND_SPEECH |
 323                                                      BTUSB_VALID_LE_STATES },
 324         { USB_DEVICE(0x10ab, 0x9109), .driver_info = BTUSB_QCA_WCN6855 |
 325                                                      BTUSB_WIDEBAND_SPEECH |
 326                                                      BTUSB_VALID_LE_STATES },
 327         { USB_DEVICE(0x10ab, 0x9208), .driver_info = BTUSB_QCA_WCN6855 |
 328                                                      BTUSB_WIDEBAND_SPEECH |
 329                                                      BTUSB_VALID_LE_STATES },
 330         { USB_DEVICE(0x10ab, 0x9209), .driver_info = BTUSB_QCA_WCN6855 |
 331                                                      BTUSB_WIDEBAND_SPEECH |
 332                                                      BTUSB_VALID_LE_STATES },
 333         { USB_DEVICE(0x10ab, 0x9308), .driver_info = BTUSB_QCA_WCN6855 |
 334                                                      BTUSB_WIDEBAND_SPEECH |
 335                                                      BTUSB_VALID_LE_STATES },
 336         { USB_DEVICE(0x10ab, 0x9408), .driver_info = BTUSB_QCA_WCN6855 |
 337                                                      BTUSB_WIDEBAND_SPEECH |
 338                                                      BTUSB_VALID_LE_STATES },
 339         { USB_DEVICE(0x10ab, 0x9508), .driver_info = BTUSB_QCA_WCN6855 |
 340                                                      BTUSB_WIDEBAND_SPEECH |
 341                                                      BTUSB_VALID_LE_STATES },
 342         { USB_DEVICE(0x10ab, 0x9509), .driver_info = BTUSB_QCA_WCN6855 |
 343                                                      BTUSB_WIDEBAND_SPEECH |
 344                                                      BTUSB_VALID_LE_STATES },
 345         { USB_DEVICE(0x10ab, 0x9608), .driver_info = BTUSB_QCA_WCN6855 |
 346                                                      BTUSB_WIDEBAND_SPEECH |
 347                                                      BTUSB_VALID_LE_STATES },
 348         { USB_DEVICE(0x10ab, 0x9609), .driver_info = BTUSB_QCA_WCN6855 |
 349                                                      BTUSB_WIDEBAND_SPEECH |
 350                                                      BTUSB_VALID_LE_STATES },
 351         { USB_DEVICE(0x10ab, 0x9f09), .driver_info = BTUSB_QCA_WCN6855 |
 352                                                      BTUSB_WIDEBAND_SPEECH |
 353                                                      BTUSB_VALID_LE_STATES },
 354         { USB_DEVICE(0x04ca, 0x3022), .driver_info = BTUSB_QCA_WCN6855 |
 355                                                      BTUSB_WIDEBAND_SPEECH |
 356                                                      BTUSB_VALID_LE_STATES },
 357         { USB_DEVICE(0x0489, 0xe0c7), .driver_info = BTUSB_QCA_WCN6855 |
 358                                                      BTUSB_WIDEBAND_SPEECH |
 359                                                      BTUSB_VALID_LE_STATES },
 360         { USB_DEVICE(0x0489, 0xe0c9), .driver_info = BTUSB_QCA_WCN6855 |
 361                                                      BTUSB_WIDEBAND_SPEECH |
 362                                                      BTUSB_VALID_LE_STATES },
 363         { USB_DEVICE(0x0489, 0xe0ca), .driver_info = BTUSB_QCA_WCN6855 |
 364                                                      BTUSB_WIDEBAND_SPEECH |
 365                                                      BTUSB_VALID_LE_STATES },
 366         { USB_DEVICE(0x0489, 0xe0cb), .driver_info = BTUSB_QCA_WCN6855 |
 367                                                      BTUSB_WIDEBAND_SPEECH |
 368                                                      BTUSB_VALID_LE_STATES },
 369         { USB_DEVICE(0x0489, 0xe0ce), .driver_info = BTUSB_QCA_WCN6855 |
 370                                                      BTUSB_WIDEBAND_SPEECH |
 371                                                      BTUSB_VALID_LE_STATES },
 372         { USB_DEVICE(0x0489, 0xe0de), .driver_info = BTUSB_QCA_WCN6855 |
 373                                                      BTUSB_WIDEBAND_SPEECH |
 374                                                      BTUSB_VALID_LE_STATES },
 375         { USB_DEVICE(0x0489, 0xe0df), .driver_info = BTUSB_QCA_WCN6855 |
 376                                                      BTUSB_WIDEBAND_SPEECH |
 377                                                      BTUSB_VALID_LE_STATES },
 378         { USB_DEVICE(0x0489, 0xe0e1), .driver_info = BTUSB_QCA_WCN6855 |
 379                                                      BTUSB_WIDEBAND_SPEECH |
 380                                                      BTUSB_VALID_LE_STATES },
 381         { USB_DEVICE(0x0489, 0xe0ea), .driver_info = BTUSB_QCA_WCN6855 |
 382                                                      BTUSB_WIDEBAND_SPEECH |
 383                                                      BTUSB_VALID_LE_STATES },
 384         { USB_DEVICE(0x0489, 0xe0ec), .driver_info = BTUSB_QCA_WCN6855 |
 385                                                      BTUSB_WIDEBAND_SPEECH |
 386                                                      BTUSB_VALID_LE_STATES },
 387         { USB_DEVICE(0x04ca, 0x3023), .driver_info = BTUSB_QCA_WCN6855 |
 388                                                      BTUSB_WIDEBAND_SPEECH |
 389                                                      BTUSB_VALID_LE_STATES },
 390         { USB_DEVICE(0x04ca, 0x3024), .driver_info = BTUSB_QCA_WCN6855 |
 391                                                      BTUSB_WIDEBAND_SPEECH |
 392                                                      BTUSB_VALID_LE_STATES },
 393         { USB_DEVICE(0x04ca, 0x3a22), .driver_info = BTUSB_QCA_WCN6855 |
 394                                                      BTUSB_WIDEBAND_SPEECH |
 395                                                      BTUSB_VALID_LE_STATES },
 396         { USB_DEVICE(0x04ca, 0x3a24), .driver_info = BTUSB_QCA_WCN6855 |
 397                                                      BTUSB_WIDEBAND_SPEECH |
 398                                                      BTUSB_VALID_LE_STATES },
 399         { USB_DEVICE(0x04ca, 0x3a26), .driver_info = BTUSB_QCA_WCN6855 |
 400                                                      BTUSB_WIDEBAND_SPEECH |
 401                                                      BTUSB_VALID_LE_STATES },
 402         { USB_DEVICE(0x04ca, 0x3a27), .driver_info = BTUSB_QCA_WCN6855 |
 403                                                      BTUSB_WIDEBAND_SPEECH |
 404                                                      BTUSB_VALID_LE_STATES },
 405
 406         /* QCA WCN785x chipset */
 407         { USB_DEVICE(0x0cf3, 0xe700), .driver_info = BTUSB_QCA_WCN6855 |
 408                                                      BTUSB_WIDEBAND_SPEECH |
 409                                                      BTUSB_VALID_LE_STATES },
 410
 411         /* Broadcom BCM2035 */
 412         { USB_DEVICE(0x0a5c, 0x2009), .driver_info = BTUSB_BCM92035 },
 413         { USB_DEVICE(0x0a5c, 0x200a), .driver_info = BTUSB_WRONG_SCO_MTU },
 414         { USB_DEVICE(0x0a5c, 0x2035), .driver_info = BTUSB_WRONG_SCO_MTU },
 415
 416         /* Broadcom BCM2045 */
 417         { USB_DEVICE(0x0a5c, 0x2039), .driver_info = BTUSB_WRONG_SCO_MTU },
 418         { USB_DEVICE(0x0a5c, 0x2101), .driver_info = BTUSB_WRONG_SCO_MTU },
 419
 420         /* IBM/Lenovo ThinkPad with Broadcom chip */
 421         { USB_DEVICE(0x0a5c, 0x201e), .driver_info = BTUSB_WRONG_SCO_MTU },
 422         { USB_DEVICE(0x0a5c, 0x2110), .driver_info = BTUSB_WRONG_SCO_MTU },
 423
 424         /* HP laptop with Broadcom chip */
 425         { USB_DEVICE(0x03f0, 0x171d), .driver_info = BTUSB_WRONG_SCO_MTU },
 426
 427         /* Dell laptop with Broadcom chip */
 428         { USB_DEVICE(0x413c, 0x8126), .driver_info = BTUSB_WRONG_SCO_MTU },
 429
 430         /* Dell Wireless 370 and 410 devices */
 431         { USB_DEVICE(0x413c, 0x8152), .driver_info = BTUSB_WRONG_SCO_MTU },
 432         { USB_DEVICE(0x413c, 0x8156), .driver_info = BTUSB_WRONG_SCO_MTU },
 433
 434         /* Belkin F8T012 and F8T013 devices */
 435         { USB_DEVICE(0x050d, 0x0012), .driver_info = BTUSB_WRONG_SCO_MTU },
 436         { USB_DEVICE(0x050d, 0x0013), .driver_info = BTUSB_WRONG_SCO_MTU },
 437
 438         /* Asus WL-BTD202 device */
 439         { USB_DEVICE(0x0b05, 0x1715), .driver_info = BTUSB_WRONG_SCO_MTU },
 440
 441         /* Kensington Bluetooth USB adapter */
 442         { USB_DEVICE(0x047d, 0x105e), .driver_info = BTUSB_WRONG_SCO_MTU },
 443
 444         /* RTX Telecom based adapters with buggy SCO support */
 445         { USB_DEVICE(0x0400, 0x0807), .driver_info = BTUSB_BROKEN_ISOC },
 446         { USB_DEVICE(0x0400, 0x080a), .driver_info = BTUSB_BROKEN_ISOC },
 447
 448         /* CONWISE Technology based adapters with buggy SCO support */
 449         { USB_DEVICE(0x0e5e, 0x6622),
 450           .driver_info = BTUSB_BROKEN_ISOC | BTUSB_CW6622},
 451
 452         /* Roper Class 1 Bluetooth Dongle (Silicon Wave based) */
 453         { USB_DEVICE(0x1310, 0x0001), .driver_info = BTUSB_SWAVE },
 454
 455         /* Digianswer devices */
 456         { USB_DEVICE(0x08fd, 0x0001), .driver_info = BTUSB_DIGIANSWER },
 457         { USB_DEVICE(0x08fd, 0x0002), .driver_info = BTUSB_IGNORE },
 458
 459         /* CSR BlueCore Bluetooth Sniffer */
 460         { USB_DEVICE(0x0a12, 0x0002),
 461           .driver_info = BTUSB_SNIFFER | BTUSB_BROKEN_ISOC },
 462
 463         /* Frontline ComProbe Bluetooth Sniffer */
 464         { USB_DEVICE(0x16d3, 0x0002),
 465           .driver_info = BTUSB_SNIFFER | BTUSB_BROKEN_ISOC },
 466
 467         /* Marvell Bluetooth devices */
 468         { USB_DEVICE(0x1286, 0x2044), .driver_info = BTUSB_MARVELL },
 469         { USB_DEVICE(0x1286, 0x2046), .driver_info = BTUSB_MARVELL },
 470         { USB_DEVICE(0x1286, 0x204e), .driver_info = BTUSB_MARVELL },
 471
 472         /* Intel Bluetooth devices */
 473         { USB_DEVICE(0x8087, 0x0025), .driver_info = BTUSB_INTEL_COMBINED },
 474         { USB_DEVICE(0x8087, 0x0026), .driver_info = BTUSB_INTEL_COMBINED },
 475         { USB_DEVICE(0x8087, 0x0029), .driver_info = BTUSB_INTEL_COMBINED },
 476         { USB_DEVICE(0x8087, 0x0032), .driver_info = BTUSB_INTEL_COMBINED },
 477         { USB_DEVICE(0x8087, 0x0033), .driver_info = BTUSB_INTEL_COMBINED },
 478         { USB_DEVICE(0x8087, 0x0035), .driver_info = BTUSB_INTEL_COMBINED },
 479         { USB_DEVICE(0x8087, 0x0036), .driver_info = BTUSB_INTEL_COMBINED },
 480         { USB_DEVICE(0x8087, 0x0037), .driver_info = BTUSB_INTEL_COMBINED },
 481         { USB_DEVICE(0x8087, 0x0038), .driver_info = BTUSB_INTEL_COMBINED },
 482         { USB_DEVICE(0x8087, 0x07da), .driver_info = BTUSB_CSR },
 483         { USB_DEVICE(0x8087, 0x07dc), .driver_info = BTUSB_INTEL_COMBINED |
 484                                                      BTUSB_INTEL_NO_WBS_SUPPORT |
 485                                                      BTUSB_INTEL_BROKEN_INITIAL_NCMD |
 486                                                      BTUSB_INTEL_BROKEN_SHUTDOWN_LED },
 487         { USB_DEVICE(0x8087, 0x0a2a), .driver_info = BTUSB_INTEL_COMBINED |
 488                                                      BTUSB_INTEL_NO_WBS_SUPPORT |
 489                                                      BTUSB_INTEL_BROKEN_SHUTDOWN_LED },
 490         { USB_DEVICE(0x8087, 0x0a2b), .driver_info = BTUSB_INTEL_COMBINED },
 491         { USB_DEVICE(0x8087, 0x0aa7), .driver_info = BTUSB_INTEL_COMBINED |
 492                                                      BTUSB_INTEL_BROKEN_SHUTDOWN_LED },
 493         { USB_DEVICE(0x8087, 0x0aaa), .driver_info = BTUSB_INTEL_COMBINED },
 494
 495         /* Other Intel Bluetooth devices */
 496         { USB_VENDOR_AND_INTERFACE_INFO(0x8087, 0xe0, 0x01, 0x01),
 497           .driver_info = BTUSB_IGNORE },
 498
 499         /* Realtek 8821CE Bluetooth devices */
 500         { USB_DEVICE(0x13d3, 0x3529), .driver_info = BTUSB_REALTEK |
 501                                                      BTUSB_WIDEBAND_SPEECH },
 502
 503         /* Realtek 8822CE Bluetooth devices */
 504         { USB_DEVICE(0x0bda, 0xb00c), .driver_info = BTUSB_REALTEK |
 505                                                      BTUSB_WIDEBAND_SPEECH },
 506         { USB_DEVICE(0x0bda, 0xc822), .driver_info = BTUSB_REALTEK |
 507                                                      BTUSB_WIDEBAND_SPEECH },
 508
 509         /* Realtek 8822CU Bluetooth devices */
 510         { USB_DEVICE(0x13d3, 0x3549), .driver_info = BTUSB_REALTEK |
 511                                                      BTUSB_WIDEBAND_SPEECH },
 512
 513         /* Realtek 8852AE Bluetooth devices */
 514         { USB_DEVICE(0x0bda, 0x2852), .driver_info = BTUSB_REALTEK |
 515                                                      BTUSB_WIDEBAND_SPEECH },
 516         { USB_DEVICE(0x0bda, 0xc852), .driver_info = BTUSB_REALTEK |
 517                                                      BTUSB_WIDEBAND_SPEECH },
 518         { USB_DEVICE(0x0bda, 0x385a), .driver_info = BTUSB_REALTEK |
 519                                                      BTUSB_WIDEBAND_SPEECH },
 520         { USB_DEVICE(0x0bda, 0x4852), .driver_info = BTUSB_REALTEK |
 521                                                      BTUSB_WIDEBAND_SPEECH },
 522         { USB_DEVICE(0x04c5, 0x165c), .driver_info = BTUSB_REALTEK |
 523                                                      BTUSB_WIDEBAND_SPEECH },
 524         { USB_DEVICE(0x04ca, 0x4006), .driver_info = BTUSB_REALTEK |
 525                                                      BTUSB_WIDEBAND_SPEECH },
 526         { USB_DEVICE(0x0cb8, 0xc549), .driver_info = BTUSB_REALTEK |
 527                                                      BTUSB_WIDEBAND_SPEECH },
 528
 529         /* Realtek 8852CE Bluetooth devices */
 530         { USB_DEVICE(0x04ca, 0x4007), .driver_info = BTUSB_REALTEK |
 531                                                      BTUSB_WIDEBAND_SPEECH },
 532         { USB_DEVICE(0x04c5, 0x1675), .driver_info = BTUSB_REALTEK |
 533                                                      BTUSB_WIDEBAND_SPEECH },
 534         { USB_DEVICE(0x0cb8, 0xc558), .driver_info = BTUSB_REALTEK |
 535                                                      BTUSB_WIDEBAND_SPEECH },
 536         { USB_DEVICE(0x13d3, 0x3587), .driver_info = BTUSB_REALTEK |
 537                                                      BTUSB_WIDEBAND_SPEECH },
 538         { USB_DEVICE(0x13d3, 0x3586), .driver_info = BTUSB_REALTEK |
 539                                                      BTUSB_WIDEBAND_SPEECH },
 540         { USB_DEVICE(0x13d3, 0x3592), .driver_info = BTUSB_REALTEK |
 541                                                      BTUSB_WIDEBAND_SPEECH },
 542
 543         /* Realtek 8852BE Bluetooth devices */
 544         { USB_DEVICE(0x0cb8, 0xc559), .driver_info = BTUSB_REALTEK |
 545                                                      BTUSB_WIDEBAND_SPEECH },
 546         { USB_DEVICE(0x0bda, 0x4853), .driver_info = BTUSB_REALTEK |
 547                                                      BTUSB_WIDEBAND_SPEECH },
 548         { USB_DEVICE(0x0bda, 0x887b), .driver_info = BTUSB_REALTEK |
 549                                                      BTUSB_WIDEBAND_SPEECH },
 550         { USB_DEVICE(0x0bda, 0xb85b), .driver_info = BTUSB_REALTEK |
 551                                                      BTUSB_WIDEBAND_SPEECH },
 552         { USB_DEVICE(0x13d3, 0x3570), .driver_info = BTUSB_REALTEK |
 553                                                      BTUSB_WIDEBAND_SPEECH },
 554         { USB_DEVICE(0x13d3, 0x3571), .driver_info = BTUSB_REALTEK |
 555                                                      BTUSB_WIDEBAND_SPEECH },
 556         { USB_DEVICE(0x13d3, 0x3572), .driver_info = BTUSB_REALTEK |
 557                                                      BTUSB_WIDEBAND_SPEECH },
 558
 559         /* Realtek 8852BT/8852BE-VT Bluetooth devices */
 560         { USB_DEVICE(0x0bda, 0x8520), .driver_info = BTUSB_REALTEK |
 561                                                      BTUSB_WIDEBAND_SPEECH },
 562         /* Realtek Bluetooth devices */
 563         { USB_VENDOR_AND_INTERFACE_INFO(0x0bda, 0xe0, 0x01, 0x01),
 564           .driver_info = BTUSB_REALTEK },
 565
 566         /* MediaTek Bluetooth devices */
 567         { USB_VENDOR_AND_INTERFACE_INFO(0x0e8d, 0xe0, 0x01, 0x01),
 568           .driver_info = BTUSB_MEDIATEK |
 569                          BTUSB_WIDEBAND_SPEECH |
 570                          BTUSB_VALID_LE_STATES },
 571
 572         /* Additional MediaTek MT7615E Bluetooth devices */
 573         { USB_DEVICE(0x13d3, 0x3560), .driver_info = BTUSB_MEDIATEK},
 574
 575         /* Additional MediaTek MT7663 Bluetooth devices */
 576         { USB_DEVICE(0x043e, 0x310c), .driver_info = BTUSB_MEDIATEK |
 577                                                      BTUSB_WIDEBAND_SPEECH |
 578                                                      BTUSB_VALID_LE_STATES },
 579         { USB_DEVICE(0x04ca, 0x3801), .driver_info = BTUSB_MEDIATEK |
 580                                                      BTUSB_WIDEBAND_SPEECH |
 581                                                      BTUSB_VALID_LE_STATES },
 582
 583         /* Additional MediaTek MT7668 Bluetooth devices */
 584         { USB_DEVICE(0x043e, 0x3109), .driver_info = BTUSB_MEDIATEK |
 585                                                      BTUSB_WIDEBAND_SPEECH |
 586                                                      BTUSB_VALID_LE_STATES },
 587
 588         /* Additional MediaTek MT7921 Bluetooth devices */
 589         { USB_DEVICE(0x0489, 0xe0c8), .driver_info = BTUSB_MEDIATEK |
 590                                                      BTUSB_WIDEBAND_SPEECH |
 591                                                      BTUSB_VALID_LE_STATES },
 592         { USB_DEVICE(0x0489, 0xe0cd), .driver_info = BTUSB_MEDIATEK |
 593                                                      BTUSB_WIDEBAND_SPEECH |
 594                                                      BTUSB_VALID_LE_STATES },
 595         { USB_DEVICE(0x0489, 0xe0e0), .driver_info = BTUSB_MEDIATEK |
 596                                                      BTUSB_WIDEBAND_SPEECH |
 597                                                      BTUSB_VALID_LE_STATES },
 598         { USB_DEVICE(0x0489, 0xe0f2), .driver_info = BTUSB_MEDIATEK |
 599                                                      BTUSB_WIDEBAND_SPEECH |
 600                                                      BTUSB_VALID_LE_STATES },
 601         { USB_DEVICE(0x04ca, 0x3802), .driver_info = BTUSB_MEDIATEK |
 602                                                      BTUSB_WIDEBAND_SPEECH |
 603                                                      BTUSB_VALID_LE_STATES },
 604         { USB_DEVICE(0x0e8d, 0x0608), .driver_info = BTUSB_MEDIATEK |
 605                                                      BTUSB_WIDEBAND_SPEECH |
 606                                                      BTUSB_VALID_LE_STATES },
 607         { USB_DEVICE(0x13d3, 0x3563), .driver_info = BTUSB_MEDIATEK |
 608                                                      BTUSB_WIDEBAND_SPEECH |
 609                                                      BTUSB_VALID_LE_STATES },
 610         { USB_DEVICE(0x13d3, 0x3564), .driver_info = BTUSB_MEDIATEK |
 611                                                      BTUSB_WIDEBAND_SPEECH |
 612                                                      BTUSB_VALID_LE_STATES },
 613         { USB_DEVICE(0x13d3, 0x3567), .driver_info = BTUSB_MEDIATEK |
 614                                                      BTUSB_WIDEBAND_SPEECH |
 615                                                      BTUSB_VALID_LE_STATES },
 616         { USB_DEVICE(0x13d3, 0x3578), .driver_info = BTUSB_MEDIATEK |
 617                                                      BTUSB_WIDEBAND_SPEECH |
 618                                                      BTUSB_VALID_LE_STATES },
 619         { USB_DEVICE(0x13d3, 0x3583), .driver_info = BTUSB_MEDIATEK |
 620                                                      BTUSB_WIDEBAND_SPEECH |
 621                                                      BTUSB_VALID_LE_STATES },
 622         { USB_DEVICE(0x13d3, 0x3606), .driver_info = BTUSB_MEDIATEK |
 623                                                      BTUSB_WIDEBAND_SPEECH |
 624                                                      BTUSB_VALID_LE_STATES },
 625
 626         /* MediaTek MT7922 Bluetooth devices */
 627         { USB_DEVICE(0x13d3, 0x3585), .driver_info = BTUSB_MEDIATEK |
 628                                                      BTUSB_WIDEBAND_SPEECH |
 629                                                      BTUSB_VALID_LE_STATES },
 630
 631         /* MediaTek MT7922A Bluetooth devices */
 632         { USB_DEVICE(0x0489, 0xe0d8), .driver_info = BTUSB_MEDIATEK |
 633                                                      BTUSB_WIDEBAND_SPEECH |
 634                                                      BTUSB_VALID_LE_STATES },
 635         { USB_DEVICE(0x0489, 0xe0d9), .driver_info = BTUSB_MEDIATEK |
 636                                                      BTUSB_WIDEBAND_SPEECH |
 637                                                      BTUSB_VALID_LE_STATES },
 638         { USB_DEVICE(0x0489, 0xe0e2), .driver_info = BTUSB_MEDIATEK |
 639                                                      BTUSB_WIDEBAND_SPEECH |
 640                                                      BTUSB_VALID_LE_STATES },
 641         { USB_DEVICE(0x0489, 0xe0e4), .driver_info = BTUSB_MEDIATEK |
 642                                                      BTUSB_WIDEBAND_SPEECH |
 643                                                      BTUSB_VALID_LE_STATES },
 644         { USB_DEVICE(0x0489, 0xe0f1), .driver_info = BTUSB_MEDIATEK |
 645                                                      BTUSB_WIDEBAND_SPEECH |
 646                                                      BTUSB_VALID_LE_STATES },
 647         { USB_DEVICE(0x0489, 0xe0f2), .driver_info = BTUSB_MEDIATEK |
 648                                                      BTUSB_WIDEBAND_SPEECH |
 649                                                      BTUSB_VALID_LE_STATES },
 650         { USB_DEVICE(0x0489, 0xe0f5), .driver_info = BTUSB_MEDIATEK |
 651                                                      BTUSB_WIDEBAND_SPEECH |
 652                                                      BTUSB_VALID_LE_STATES },
 653         { USB_DEVICE(0x0489, 0xe0f6), .driver_info = BTUSB_MEDIATEK |
 654                                                      BTUSB_WIDEBAND_SPEECH |
 655                                                      BTUSB_VALID_LE_STATES },
 656         { USB_DEVICE(0x0489, 0xe102), .driver_info = BTUSB_MEDIATEK |
 657                                                      BTUSB_WIDEBAND_SPEECH |
 658                                                      BTUSB_VALID_LE_STATES },
 659         { USB_DEVICE(0x04ca, 0x3804), .driver_info = BTUSB_MEDIATEK |
 660                                                      BTUSB_WIDEBAND_SPEECH |
 661                                                      BTUSB_VALID_LE_STATES },
 662         { USB_DEVICE(0x04ca, 0x38e4), .driver_info = BTUSB_MEDIATEK |
 663                                                      BTUSB_WIDEBAND_SPEECH |
 664                                                      BTUSB_VALID_LE_STATES },
 665         { USB_DEVICE(0x13d3, 0x3568), .driver_info = BTUSB_MEDIATEK |
 666                                                      BTUSB_WIDEBAND_SPEECH |
 667                                                      BTUSB_VALID_LE_STATES },
 668         { USB_DEVICE(0x13d3, 0x3605), .driver_info = BTUSB_MEDIATEK |
 669                                                      BTUSB_WIDEBAND_SPEECH |
 670                                                      BTUSB_VALID_LE_STATES },
 671         { USB_DEVICE(0x13d3, 0x3607), .driver_info = BTUSB_MEDIATEK |
 672                                                      BTUSB_WIDEBAND_SPEECH |
 673                                                      BTUSB_VALID_LE_STATES },
 674         { USB_DEVICE(0x13d3, 0x3614), .driver_info = BTUSB_MEDIATEK |
 675                                                      BTUSB_WIDEBAND_SPEECH |
 676                                                      BTUSB_VALID_LE_STATES },
 677         { USB_DEVICE(0x13d3, 0x3615), .driver_info = BTUSB_MEDIATEK |
 678                                                      BTUSB_WIDEBAND_SPEECH |
 679                                                      BTUSB_VALID_LE_STATES },
 680         { USB_DEVICE(0x35f5, 0x7922), .driver_info = BTUSB_MEDIATEK |
 681                                                      BTUSB_WIDEBAND_SPEECH |
 682                                                      BTUSB_VALID_LE_STATES },
 683
 684         /* Additional MediaTek MT7925 Bluetooth devices */
 685         { USB_DEVICE(0x0489, 0xe113), .driver_info = BTUSB_MEDIATEK |
 686                                                      BTUSB_WIDEBAND_SPEECH |
 687                                                      BTUSB_VALID_LE_STATES },
 688         { USB_DEVICE(0x13d3, 0x3602), .driver_info = BTUSB_MEDIATEK |
 689                                                      BTUSB_WIDEBAND_SPEECH |
 690                                                      BTUSB_VALID_LE_STATES },
 691         { USB_DEVICE(0x13d3, 0x3603), .driver_info = BTUSB_MEDIATEK |
 692                                                      BTUSB_WIDEBAND_SPEECH |
 693                                                      BTUSB_VALID_LE_STATES },
 694
 695         /* Additional Realtek 8723AE Bluetooth devices */
 696         { USB_DEVICE(0x0930, 0x021d), .driver_info = BTUSB_REALTEK },
 697         { USB_DEVICE(0x13d3, 0x3394), .driver_info = BTUSB_REALTEK },
 698
 699         /* Additional Realtek 8723BE Bluetooth devices */
 700         { USB_DEVICE(0x0489, 0xe085), .driver_info = BTUSB_REALTEK },
 701         { USB_DEVICE(0x0489, 0xe08b), .driver_info = BTUSB_REALTEK },
 702         { USB_DEVICE(0x04f2, 0xb49f), .driver_info = BTUSB_REALTEK },
 703         { USB_DEVICE(0x13d3, 0x3410), .driver_info = BTUSB_REALTEK },
 704         { USB_DEVICE(0x13d3, 0x3416), .driver_info = BTUSB_REALTEK },
 705         { USB_DEVICE(0x13d3, 0x3459), .driver_info = BTUSB_REALTEK },
 706         { USB_DEVICE(0x13d3, 0x3494), .driver_info = BTUSB_REALTEK },
 707
 708         /* Additional Realtek 8723BU Bluetooth devices */
 709         { USB_DEVICE(0x7392, 0xa611), .driver_info = BTUSB_REALTEK },
 710
 711         /* Additional Realtek 8723DE Bluetooth devices */
 712         { USB_DEVICE(0x0bda, 0xb009), .driver_info = BTUSB_REALTEK },
 713         { USB_DEVICE(0x2ff8, 0xb011), .driver_info = BTUSB_REALTEK },
 714
 715         /* Additional Realtek 8761BUV Bluetooth devices */
 716         { USB_DEVICE(0x2357, 0x0604), .driver_info = BTUSB_REALTEK |
 717                                                      BTUSB_WIDEBAND_SPEECH },
 718         { USB_DEVICE(0x0b05, 0x190e), .driver_info = BTUSB_REALTEK |
 719                                                      BTUSB_WIDEBAND_SPEECH },
 720         { USB_DEVICE(0x2550, 0x8761), .driver_info = BTUSB_REALTEK |
 721                                                      BTUSB_WIDEBAND_SPEECH },
 722         { USB_DEVICE(0x0bda, 0x8771), .driver_info = BTUSB_REALTEK |
 723                                                      BTUSB_WIDEBAND_SPEECH },
 724         { USB_DEVICE(0x6655, 0x8771), .driver_info = BTUSB_REALTEK |
 725                                                      BTUSB_WIDEBAND_SPEECH },
 726         { USB_DEVICE(0x7392, 0xc611), .driver_info = BTUSB_REALTEK |
 727                                                      BTUSB_WIDEBAND_SPEECH },
 728         { USB_DEVICE(0x2b89, 0x8761), .driver_info = BTUSB_REALTEK |
 729                                                      BTUSB_WIDEBAND_SPEECH },
 730
 731         /* Additional Realtek 8821AE Bluetooth devices */
 732         { USB_DEVICE(0x0b05, 0x17dc), .driver_info = BTUSB_REALTEK },
 733         { USB_DEVICE(0x13d3, 0x3414), .driver_info = BTUSB_REALTEK },
 734         { USB_DEVICE(0x13d3, 0x3458), .driver_info = BTUSB_REALTEK },
 735         { USB_DEVICE(0x13d3, 0x3461), .driver_info = BTUSB_REALTEK },
 736         { USB_DEVICE(0x13d3, 0x3462), .driver_info = BTUSB_REALTEK },
 737
 738         /* Additional Realtek 8822BE Bluetooth devices */
 739         { USB_DEVICE(0x13d3, 0x3526), .driver_info = BTUSB_REALTEK },
 740         { USB_DEVICE(0x0b05, 0x185c), .driver_info = BTUSB_REALTEK },
 741
 742         /* Additional Realtek 8822CE Bluetooth devices */
 743         { USB_DEVICE(0x04ca, 0x4005), .driver_info = BTUSB_REALTEK |
 744                                                      BTUSB_WIDEBAND_SPEECH },
 745         { USB_DEVICE(0x04c5, 0x161f), .driver_info = BTUSB_REALTEK |
 746                                                      BTUSB_WIDEBAND_SPEECH },
 747         { USB_DEVICE(0x0b05, 0x18ef), .driver_info = BTUSB_REALTEK |
 748                                                      BTUSB_WIDEBAND_SPEECH },
 749         { USB_DEVICE(0x13d3, 0x3548), .driver_info = BTUSB_REALTEK |
 750                                                      BTUSB_WIDEBAND_SPEECH },
 751         { USB_DEVICE(0x13d3, 0x3549), .driver_info = BTUSB_REALTEK |
 752                                                      BTUSB_WIDEBAND_SPEECH },
 753         { USB_DEVICE(0x13d3, 0x3553), .driver_info = BTUSB_REALTEK |
 754                                                      BTUSB_WIDEBAND_SPEECH },
 755         { USB_DEVICE(0x13d3, 0x3555), .driver_info = BTUSB_REALTEK |
 756                                                      BTUSB_WIDEBAND_SPEECH },
 757         { USB_DEVICE(0x2ff8, 0x3051), .driver_info = BTUSB_REALTEK |
 758                                                      BTUSB_WIDEBAND_SPEECH },
 759         { USB_DEVICE(0x1358, 0xc123), .driver_info = BTUSB_REALTEK |
 760                                                      BTUSB_WIDEBAND_SPEECH },
 761         { USB_DEVICE(0x0bda, 0xc123), .driver_info = BTUSB_REALTEK |
 762                                                      BTUSB_WIDEBAND_SPEECH },
 763         { USB_DEVICE(0x0cb5, 0xc547), .driver_info = BTUSB_REALTEK |
 764                                                      BTUSB_WIDEBAND_SPEECH },
 765
 766         /* Actions Semiconductor ATS2851 based devices */
 767         { USB_DEVICE(0x10d7, 0xb012), .driver_info = BTUSB_ACTIONS_SEMI },
 768
 769         /* Silicon Wave based devices */
 770         { USB_DEVICE(0x0c10, 0x0000), .driver_info = BTUSB_SWAVE },
 771
 772         { }     /* Terminating entry */
 773 };
 774
 775 /* The Bluetooth USB module build into some devices needs to be reset on resume,
 776  * this is a problem with the platform (likely shutting off all power) not with
 777  * the module itself. So we use a DMI list to match known broken platforms.
 778  */
 779 static const struct dmi_system_id btusb_needs_reset_resume_table[] = {
 780         {
 781                 /* Dell OptiPlex 3060 (QCA ROME device 0cf3:e007) */
 782                 .matches = {
 783                         DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
 784                         DMI_MATCH(DMI_PRODUCT_NAME, "OptiPlex 3060"),
 785                 },
 786         },
 787         {
 788                 /* Dell XPS 9360 (QCA ROME device 0cf3:e300) */
 789                 .matches = {
 790                         DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
 791                         DMI_MATCH(DMI_PRODUCT_NAME, "XPS 13 9360"),
 792                 },
 793         },
 794         {
 795                 /* Dell Inspiron 5565 (QCA ROME device 0cf3:e009) */
 796                 .matches = {
 797                         DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
 798                         DMI_MATCH(DMI_PRODUCT_NAME, "Inspiron 5565"),
 799                 },
 800         },
 801         {}
 802 };
 803
 804 struct qca_dump_info {
 805         /* fields for dump collection */
 806         u16 id_vendor;
 807         u16 id_product;
 808         u32 fw_version;
 809         u32 controller_id;
 810         u32 ram_dump_size;
 811         u16 ram_dump_seqno;
 812 };
 813
 814 #define BTUSB_MAX_ISOC_FRAMES   10
 815
 816 #define BTUSB_INTR_RUNNING      0
 817 #define BTUSB_BULK_RUNNING      1
 818 #define BTUSB_ISOC_RUNNING      2
 819 #define BTUSB_SUSPENDING        3
 820 #define BTUSB_DID_ISO_RESUME    4
 821 #define BTUSB_BOOTLOADER        5
 822 #define BTUSB_DOWNLOADING       6
 823 #define BTUSB_FIRMWARE_LOADED   7
 824 #define BTUSB_FIRMWARE_FAILED   8
 825 #define BTUSB_BOOTING           9
 826 #define BTUSB_DIAG_RUNNING      10
 827 #define BTUSB_OOB_WAKE_ENABLED  11
 828 #define BTUSB_HW_RESET_ACTIVE   12
 829 #define BTUSB_TX_WAIT_VND_EVT   13
 830 #define BTUSB_WAKEUP_AUTOSUSPEND        14
 831 #define BTUSB_USE_ALT3_FOR_WBS  15
 832 #define BTUSB_ALT6_CONTINUOUS_TX        16
 833 #define BTUSB_HW_SSR_ACTIVE     17
 834
 835 struct btusb_data {
 836         struct hci_dev       *hdev;
 837         struct usb_device    *udev;
 838         struct usb_interface *intf;
 839         struct usb_interface *isoc;
 840         struct usb_interface *diag;
 841         unsigned isoc_ifnum;
 842
 843         unsigned long flags;
 844
 845         bool poll_sync;
 846         int intr_interval;
 847         struct work_struct  work;
 848         struct work_struct  waker;
 849         struct delayed_work rx_work;
 850
 851         struct sk_buff_head acl_q;
 852
 853         struct usb_anchor deferred;
 854         struct usb_anchor tx_anchor;
 855         int tx_in_flight;
 856         spinlock_t txlock;
 857
 858         struct usb_anchor intr_anchor;
 859         struct usb_anchor bulk_anchor;
 860         struct usb_anchor isoc_anchor;
 861         struct usb_anchor diag_anchor;
 862         struct usb_anchor ctrl_anchor;
 863         spinlock_t rxlock;
 864
 865         struct sk_buff *evt_skb;
 866         struct sk_buff *acl_skb;
 867         struct sk_buff *sco_skb;
 868
 869         struct usb_endpoint_descriptor *intr_ep;
 870         struct usb_endpoint_descriptor *bulk_tx_ep;
 871         struct usb_endpoint_descriptor *bulk_rx_ep;
 872         struct usb_endpoint_descriptor *isoc_tx_ep;
 873         struct usb_endpoint_descriptor *isoc_rx_ep;
 874         struct usb_endpoint_descriptor *diag_tx_ep;
 875         struct usb_endpoint_descriptor *diag_rx_ep;
 876
 877         struct gpio_desc *reset_gpio;
 878
 879         __u8 cmdreq_type;
 880         __u8 cmdreq;
 881
 882         unsigned int sco_num;
 883         unsigned int air_mode;
 884         bool usb_alt6_packet_flow;
 885         int isoc_altsetting;
 886         int suspend_count;
 887
 888         int (*recv_event)(struct hci_dev *hdev, struct sk_buff *skb);
 889         int (*recv_acl)(struct hci_dev *hdev, struct sk_buff *skb);
 890         int (*recv_bulk)(struct btusb_data *data, void *buffer, int count);
 891
 892         int (*setup_on_usb)(struct hci_dev *hdev);
 893
 894         int oob_wake_irq;   /* irq for out-of-band wake-on-bt */
 895         unsigned cmd_timeout_cnt;
 896
 897         struct qca_dump_info qca_dump;
 898 };
 899
 900 static void btusb_reset(struct hci_dev *hdev)
 901 {
 902         struct btusb_data *data;
 903         int err;
 904
 905         if (hdev->reset) {
 906                 hdev->reset(hdev);
 907                 return;
 908         }
 909
 910         data = hci_get_drvdata(hdev);
 911         /* This is not an unbalanced PM reference since the device will reset */
 912         err = usb_autopm_get_interface(data->intf);
 913         if (err) {
 914                 bt_dev_err(hdev, "Failed usb_autopm_get_interface: %d", err);
 915                 return;
 916         }
 917
 918         bt_dev_err(hdev, "Resetting usb device.");
 919         usb_queue_reset_device(data->intf);
 920 }
 921
 922 static void btusb_intel_cmd_timeout(struct hci_dev *hdev)
 923 {
 924         struct btusb_data *data = hci_get_drvdata(hdev);
 925         struct gpio_desc *reset_gpio = data->reset_gpio;
 926         struct btintel_data *intel_data = hci_get_priv(hdev);
 927
 928         if (++data->cmd_timeout_cnt < 5)
 929                 return;
 930
 931         if (intel_data->acpi_reset_method) {
 932                 if (test_and_set_bit(INTEL_ACPI_RESET_ACTIVE, intel_data->flags)) {
 933                         bt_dev_err(hdev, "acpi: last reset failed ? Not resetting again");
 934                         return;
 935                 }
 936
 937                 bt_dev_err(hdev, "Initiating acpi reset method");
 938                 /* If ACPI reset method fails, lets try with legacy GPIO
 939                  * toggling
 940                  */
 941                 if (!intel_data->acpi_reset_method(hdev)) {
 942                         return;
 943                 }
 944         }
 945
 946         if (!reset_gpio) {
 947                 btusb_reset(hdev);
 948                 return;
 949         }
 950
 951         /*
 952          * Toggle the hard reset line if the platform provides one. The reset
 953          * is going to yank the device off the USB and then replug. So doing
 954          * once is enough. The cleanup is handled correctly on the way out
 955          * (standard USB disconnect), and the new device is detected cleanly
 956          * and bound to the driver again like it should be.
 957          */
 958         if (test_and_set_bit(BTUSB_HW_RESET_ACTIVE, &data->flags)) {
 959                 bt_dev_err(hdev, "last reset failed? Not resetting again");
 960                 return;
 961         }
 962
 963         bt_dev_err(hdev, "Initiating HW reset via gpio");
 964         gpiod_set_value_cansleep(reset_gpio, 1);
 965         msleep(100);
 966         gpiod_set_value_cansleep(reset_gpio, 0);
 967 }
 968
 969 #define RTK_DEVCOREDUMP_CODE_MEMDUMP            0x01
 970 #define RTK_DEVCOREDUMP_CODE_HW_ERR             0x02
 971 #define RTK_DEVCOREDUMP_CODE_CMD_TIMEOUT        0x03
 972
 973 #define RTK_SUB_EVENT_CODE_COREDUMP             0x34
 974
 975 struct rtk_dev_coredump_hdr {
 976         u8 type;
 977         u8 code;
 978         u8 reserved[2];
 979 } __packed;
 980
 981 static inline void btusb_rtl_alloc_devcoredump(struct hci_dev *hdev,
 982                 struct rtk_dev_coredump_hdr *hdr, u8 *buf, u32 len)
 983 {
 984         struct sk_buff *skb;
 985
 986         skb = alloc_skb(len + sizeof(*hdr), GFP_ATOMIC);
 987         if (!skb)
 988                 return;
 989
 990         skb_put_data(skb, hdr, sizeof(*hdr));
 991         if (len)
 992                 skb_put_data(skb, buf, len);
 993
 994         if (!hci_devcd_init(hdev, skb->len)) {
 995                 hci_devcd_append(hdev, skb);
 996                 hci_devcd_complete(hdev);
 997         } else {
 998                 bt_dev_err(hdev, "RTL: Failed to generate devcoredump");
 999                 kfree_skb(skb);
1000         }
1001 }
1002
1003 static void btusb_rtl_cmd_timeout(struct hci_dev *hdev)
1004 {
1005         struct btusb_data *data = hci_get_drvdata(hdev);
1006         struct gpio_desc *reset_gpio = data->reset_gpio;
1007         struct rtk_dev_coredump_hdr hdr = {
1008                 .type = RTK_DEVCOREDUMP_CODE_CMD_TIMEOUT,
1009         };
1010
1011         btusb_rtl_alloc_devcoredump(hdev, &hdr, NULL, 0);
1012
1013         if (++data->cmd_timeout_cnt < 5)
1014                 return;
1015
1016         if (!reset_gpio) {
1017                 btusb_reset(hdev);
1018                 return;
1019         }
1020
1021         /* Toggle the hard reset line. The Realtek device is going to
1022          * yank itself off the USB and then replug. The cleanup is handled
1023          * correctly on the way out (standard USB disconnect), and the new
1024          * device is detected cleanly and bound to the driver again like
1025          * it should be.
1026          */
1027         if (test_and_set_bit(BTUSB_HW_RESET_ACTIVE, &data->flags)) {
1028                 bt_dev_err(hdev, "last reset failed? Not resetting again");
1029                 return;
1030         }
1031
1032         bt_dev_err(hdev, "Reset Realtek device via gpio");
1033         gpiod_set_value_cansleep(reset_gpio, 1);
1034         msleep(200);
1035         gpiod_set_value_cansleep(reset_gpio, 0);
1036 }
1037
1038 static void btusb_rtl_hw_error(struct hci_dev *hdev, u8 code)
1039 {
1040         struct rtk_dev_coredump_hdr hdr = {
1041                 .type = RTK_DEVCOREDUMP_CODE_HW_ERR,
1042                 .code = code,
1043         };
1044
1045         bt_dev_err(hdev, "RTL: hw err, trigger devcoredump (%d)", code);
1046
1047         btusb_rtl_alloc_devcoredump(hdev, &hdr, NULL, 0);
1048 }
1049
1050 static void btusb_qca_cmd_timeout(struct hci_dev *hdev)
1051 {
1052         struct btusb_data *data = hci_get_drvdata(hdev);
1053         struct gpio_desc *reset_gpio = data->reset_gpio;
1054
1055         if (test_bit(BTUSB_HW_SSR_ACTIVE, &data->flags)) {
1056                 bt_dev_info(hdev, "Ramdump in progress, defer cmd_timeout");
1057                 return;
1058         }
1059
1060         if (++data->cmd_timeout_cnt < 5)
1061                 return;
1062
1063         if (reset_gpio) {
1064                 bt_dev_err(hdev, "Reset qca device via bt_en gpio");
1065
1066                 /* Toggle the hard reset line. The qca bt device is going to
1067                  * yank itself off the USB and then replug. The cleanup is handled
1068                  * correctly on the way out (standard USB disconnect), and the new
1069                  * device is detected cleanly and bound to the driver again like
1070                  * it should be.
1071                  */
1072                 if (test_and_set_bit(BTUSB_HW_RESET_ACTIVE, &data->flags)) {
1073                         bt_dev_err(hdev, "last reset failed? Not resetting again");
1074                         return;
1075                 }
1076
1077                 gpiod_set_value_cansleep(reset_gpio, 0);
1078                 msleep(200);
1079                 gpiod_set_value_cansleep(reset_gpio, 1);
1080
1081                 return;
1082         }
1083
1084         btusb_reset(hdev);
1085 }
1086
1087 static inline void btusb_free_frags(struct btusb_data *data)
1088 {
1089         unsigned long flags;
1090
1091         spin_lock_irqsave(&data->rxlock, flags);
1092
1093         dev_kfree_skb_irq(data->evt_skb);
1094         data->evt_skb = NULL;
1095
1096         dev_kfree_skb_irq(data->acl_skb);
1097         data->acl_skb = NULL;
1098
1099         dev_kfree_skb_irq(data->sco_skb);
1100         data->sco_skb = NULL;
1101
1102         spin_unlock_irqrestore(&data->rxlock, flags);
1103 }
1104
1105 static int btusb_recv_event(struct btusb_data *data, struct sk_buff *skb)
1106 {
1107         if (data->intr_interval) {
1108                 /* Trigger dequeue immediatelly if an event is received */
1109                 schedule_delayed_work(&data->rx_work, 0);
1110         }
1111
1112         return data->recv_event(data->hdev, skb);
1113 }
1114
1115 static int btusb_recv_intr(struct btusb_data *data, void *buffer, int count)
1116 {
1117         struct sk_buff *skb;
1118         unsigned long flags;
1119         int err = 0;
1120
1121         spin_lock_irqsave(&data->rxlock, flags);
1122         skb = data->evt_skb;
1123
1124         while (count) {
1125                 int len;
1126
1127                 if (!skb) {
1128                         skb = bt_skb_alloc(HCI_MAX_EVENT_SIZE, GFP_ATOMIC);
1129                         if (!skb) {
1130                                 err = -ENOMEM;
1131                                 break;
1132                         }
1133
1134                         hci_skb_pkt_type(skb) = HCI_EVENT_PKT;
1135                         hci_skb_expect(skb) = HCI_EVENT_HDR_SIZE;
1136                 }
1137
1138                 len = min_t(uint, hci_skb_expect(skb), count);
1139                 skb_put_data(skb, buffer, len);
1140
1141                 count -= len;
1142                 buffer += len;
1143                 hci_skb_expect(skb) -= len;
1144
1145                 if (skb->len == HCI_EVENT_HDR_SIZE) {
1146                         /* Complete event header */
1147                         hci_skb_expect(skb) = hci_event_hdr(skb)->plen;
1148
1149                         if (skb_tailroom(skb) < hci_skb_expect(skb)) {
1150                                 kfree_skb(skb);
1151                                 skb = NULL;
1152
1153                                 err = -EILSEQ;
1154                                 break;
1155                         }
1156                 }
1157
1158                 if (!hci_skb_expect(skb)) {
1159                         /* Complete frame */
1160                         btusb_recv_event(data, skb);
1161                         skb = NULL;
1162                 }
1163         }
1164
1165         data->evt_skb = skb;
1166         spin_unlock_irqrestore(&data->rxlock, flags);
1167
1168         return err;
1169 }
1170
1171 static int btusb_recv_acl(struct btusb_data *data, struct sk_buff *skb)
1172 {
1173         /* Only queue ACL packet if intr_interval is set as it means
1174          * force_poll_sync has been enabled.
1175          */
1176         if (!data->intr_interval)
1177                 return data->recv_acl(data->hdev, skb);
1178
1179         skb_queue_tail(&data->acl_q, skb);
1180         schedule_delayed_work(&data->rx_work, data->intr_interval);
1181
1182         return 0;
1183 }
1184
1185 static int btusb_recv_bulk(struct btusb_data *data, void *buffer, int count)
1186 {
1187         struct sk_buff *skb;
1188         unsigned long flags;
1189         int err = 0;
1190
1191         spin_lock_irqsave(&data->rxlock, flags);
1192         skb = data->acl_skb;
1193
1194         while (count) {
1195                 int len;
1196
1197                 if (!skb) {
1198                         skb = bt_skb_alloc(HCI_MAX_FRAME_SIZE, GFP_ATOMIC);
1199                         if (!skb) {
1200                                 err = -ENOMEM;
1201                                 break;
1202                         }
1203
1204                         hci_skb_pkt_type(skb) = HCI_ACLDATA_PKT;
1205                         hci_skb_expect(skb) = HCI_ACL_HDR_SIZE;
1206                 }
1207
1208                 len = min_t(uint, hci_skb_expect(skb), count);
1209                 skb_put_data(skb, buffer, len);
1210
1211                 count -= len;
1212                 buffer += len;
1213                 hci_skb_expect(skb) -= len;
1214
1215                 if (skb->len == HCI_ACL_HDR_SIZE) {
1216                         __le16 dlen = hci_acl_hdr(skb)->dlen;
1217
1218                         /* Complete ACL header */
1219                         hci_skb_expect(skb) = __le16_to_cpu(dlen);
1220
1221                         if (skb_tailroom(skb) < hci_skb_expect(skb)) {
1222                                 kfree_skb(skb);
1223                                 skb = NULL;
1224
1225                                 err = -EILSEQ;
1226                                 break;
1227                         }
1228                 }
1229
1230                 if (!hci_skb_expect(skb)) {
1231                         /* Complete frame */
1232                         btusb_recv_acl(data, skb);
1233                         skb = NULL;
1234                 }
1235         }
1236
1237         data->acl_skb = skb;
1238         spin_unlock_irqrestore(&data->rxlock, flags);
1239
1240         return err;
1241 }
1242
1243 static bool btusb_validate_sco_handle(struct hci_dev *hdev,
1244                                       struct hci_sco_hdr *hdr)
1245 {
1246         __u16 handle;
1247
1248         if (hci_dev_test_flag(hdev, HCI_USER_CHANNEL))
1249                 // Can't validate, userspace controls everything.
1250                 return true;
1251
1252         /*
1253          * USB isochronous transfers are not designed to be reliable and may
1254          * lose fragments.  When this happens, the next first fragment
1255          * encountered might actually be a continuation fragment.
1256          * Validate the handle to detect it and drop it, or else the upper
1257          * layer will get garbage for a while.
1258          */
1259
1260         handle = hci_handle(__le16_to_cpu(hdr->handle));
1261
1262         switch (hci_conn_lookup_type(hdev, handle)) {
1263         case SCO_LINK:
1264         case ESCO_LINK:
1265                 return true;
1266         default:
1267                 return false;
1268         }
1269 }
1270
1271 static int btusb_recv_isoc(struct btusb_data *data, void *buffer, int count)
1272 {
1273         struct sk_buff *skb;
1274         unsigned long flags;
1275         int err = 0;
1276
1277         spin_lock_irqsave(&data->rxlock, flags);
1278         skb = data->sco_skb;
1279
1280         while (count) {
1281                 int len;
1282
1283                 if (!skb) {
1284                         skb = bt_skb_alloc(HCI_MAX_SCO_SIZE, GFP_ATOMIC);
1285                         if (!skb) {
1286                                 err = -ENOMEM;
1287                                 break;
1288                         }
1289
1290                         hci_skb_pkt_type(skb) = HCI_SCODATA_PKT;
1291                         hci_skb_expect(skb) = HCI_SCO_HDR_SIZE;
1292                 }
1293
1294                 len = min_t(uint, hci_skb_expect(skb), count);
1295                 skb_put_data(skb, buffer, len);
1296
1297                 count -= len;
1298                 buffer += len;
1299                 hci_skb_expect(skb) -= len;
1300
1301                 if (skb->len == HCI_SCO_HDR_SIZE) {
1302                         /* Complete SCO header */
1303                         struct hci_sco_hdr *hdr = hci_sco_hdr(skb);
1304
1305                         hci_skb_expect(skb) = hdr->dlen;
1306
1307                         if (skb_tailroom(skb) < hci_skb_expect(skb) ||
1308                             !btusb_validate_sco_handle(data->hdev, hdr)) {
1309                                 kfree_skb(skb);
1310                                 skb = NULL;
1311
1312                                 err = -EILSEQ;
1313                                 break;
1314                         }
1315                 }
1316
1317                 if (!hci_skb_expect(skb)) {
1318                         /* Complete frame */
1319                         hci_recv_frame(data->hdev, skb);
1320                         skb = NULL;
1321                 }
1322         }
1323
1324         data->sco_skb = skb;
1325         spin_unlock_irqrestore(&data->rxlock, flags);
1326
1327         return err;
1328 }
1329
1330 static void btusb_intr_complete(struct urb *urb)
1331 {
1332         struct hci_dev *hdev = urb->context;
1333         struct btusb_data *data = hci_get_drvdata(hdev);
1334         int err;
1335
1336         BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
1337                urb->actual_length);
1338
1339         if (!test_bit(HCI_RUNNING, &hdev->flags))
1340                 return;
1341
1342         if (urb->status == 0) {
1343                 hdev->stat.byte_rx += urb->actual_length;
1344
1345                 if (btusb_recv_intr(data, urb->transfer_buffer,
1346                                     urb->actual_length) < 0) {
1347                         bt_dev_err(hdev, "corrupted event packet");
1348                         hdev->stat.err_rx++;
1349                 }
1350         } else if (urb->status == -ENOENT) {
1351                 /* Avoid suspend failed when usb_kill_urb */
1352                 return;
1353         }
1354
1355         if (!test_bit(BTUSB_INTR_RUNNING, &data->flags))
1356                 return;
1357
1358         usb_mark_last_busy(data->udev);
1359         usb_anchor_urb(urb, &data->intr_anchor);
1360
1361         err = usb_submit_urb(urb, GFP_ATOMIC);
1362         if (err < 0) {
1363                 /* -EPERM: urb is being killed;
1364                  * -ENODEV: device got disconnected
1365                  */
1366                 if (err != -EPERM && err != -ENODEV)
1367                         bt_dev_err(hdev, "urb %p failed to resubmit (%d)",
1368                                    urb, -err);
1369                 if (err != -EPERM)
1370                         hci_cmd_sync_cancel(hdev, -err);
1371                 usb_unanchor_urb(urb);
1372         }
1373 }
1374
1375 static int btusb_submit_intr_urb(struct hci_dev *hdev, gfp_t mem_flags)
1376 {
1377         struct btusb_data *data = hci_get_drvdata(hdev);
1378         struct urb *urb;
1379         unsigned char *buf;
1380         unsigned int pipe;
1381         int err, size;
1382
1383         BT_DBG("%s", hdev->name);
1384
1385         if (!data->intr_ep)
1386                 return -ENODEV;
1387
1388         urb = usb_alloc_urb(0, mem_flags);
1389         if (!urb)
1390                 return -ENOMEM;
1391
1392         size = le16_to_cpu(data->intr_ep->wMaxPacketSize);
1393
1394         buf = kmalloc(size, mem_flags);
1395         if (!buf) {
1396                 usb_free_urb(urb);
1397                 return -ENOMEM;
1398         }
1399
1400         pipe = usb_rcvintpipe(data->udev, data->intr_ep->bEndpointAddress);
1401
1402         usb_fill_int_urb(urb, data->udev, pipe, buf, size,
1403                          btusb_intr_complete, hdev, data->intr_ep->bInterval);
1404
1405         urb->transfer_flags |= URB_FREE_BUFFER;
1406
1407         usb_anchor_urb(urb, &data->intr_anchor);
1408
1409         err = usb_submit_urb(urb, mem_flags);
1410         if (err < 0) {
1411                 if (err != -EPERM && err != -ENODEV)
1412                         bt_dev_err(hdev, "urb %p submission failed (%d)",
1413                                    urb, -err);
1414                 if (err != -EPERM)
1415                         hci_cmd_sync_cancel(hdev, -err);
1416                 usb_unanchor_urb(urb);
1417         }
1418
1419         /* Only initialize intr_interval if URB poll sync is enabled */
1420         if (!data->poll_sync)
1421                 goto done;
1422
1423         /* The units are frames (milliseconds) for full and low speed devices,
1424          * and microframes (1/8 millisecond) for highspeed and SuperSpeed
1425          * devices.
1426          *
1427          * This is done once on open/resume so it shouldn't change even if
1428          * force_poll_sync changes.
1429          */
1430         switch (urb->dev->speed) {
1431         case USB_SPEED_SUPER_PLUS:
1432         case USB_SPEED_SUPER:   /* units are 125us */
1433                 data->intr_interval = usecs_to_jiffies(urb->interval * 125);
1434                 break;
1435         default:
1436                 data->intr_interval = msecs_to_jiffies(urb->interval);
1437                 break;
1438         }
1439
1440 done:
1441         usb_free_urb(urb);
1442
1443         return err;
1444 }
1445
1446 static void btusb_bulk_complete(struct urb *urb)
1447 {
1448         struct hci_dev *hdev = urb->context;
1449         struct btusb_data *data = hci_get_drvdata(hdev);
1450         int err;
1451
1452         BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
1453                urb->actual_length);
1454
1455         if (!test_bit(HCI_RUNNING, &hdev->flags))
1456                 return;
1457
1458         if (urb->status == 0) {
1459                 hdev->stat.byte_rx += urb->actual_length;
1460
1461                 if (data->recv_bulk(data, urb->transfer_buffer,
1462                                     urb->actual_length) < 0) {
1463                         bt_dev_err(hdev, "corrupted ACL packet");
1464                         hdev->stat.err_rx++;
1465                 }
1466         } else if (urb->status == -ENOENT) {
1467                 /* Avoid suspend failed when usb_kill_urb */
1468                 return;
1469         }
1470
1471         if (!test_bit(BTUSB_BULK_RUNNING, &data->flags))
1472                 return;
1473
1474         usb_anchor_urb(urb, &data->bulk_anchor);
1475         usb_mark_last_busy(data->udev);
1476
1477         err = usb_submit_urb(urb, GFP_ATOMIC);
1478         if (err < 0) {
1479                 /* -EPERM: urb is being killed;
1480                  * -ENODEV: device got disconnected
1481                  */
1482                 if (err != -EPERM && err != -ENODEV)
1483                         bt_dev_err(hdev, "urb %p failed to resubmit (%d)",
1484                                    urb, -err);
1485                 usb_unanchor_urb(urb);
1486         }
1487 }
1488
1489 static int btusb_submit_bulk_urb(struct hci_dev *hdev, gfp_t mem_flags)
1490 {
1491         struct btusb_data *data = hci_get_drvdata(hdev);
1492         struct urb *urb;
1493         unsigned char *buf;
1494         unsigned int pipe;
1495         int err, size = HCI_MAX_FRAME_SIZE;
1496
1497         BT_DBG("%s", hdev->name);
1498
1499         if (!data->bulk_rx_ep)
1500                 return -ENODEV;
1501
1502         urb = usb_alloc_urb(0, mem_flags);
1503         if (!urb)
1504                 return -ENOMEM;
1505
1506         buf = kmalloc(size, mem_flags);
1507         if (!buf) {
1508                 usb_free_urb(urb);
1509                 return -ENOMEM;
1510         }
1511
1512         pipe = usb_rcvbulkpipe(data->udev, data->bulk_rx_ep->bEndpointAddress);
1513
1514         usb_fill_bulk_urb(urb, data->udev, pipe, buf, size,
1515                           btusb_bulk_complete, hdev);
1516
1517         urb->transfer_flags |= URB_FREE_BUFFER;
1518
1519         usb_mark_last_busy(data->udev);
1520         usb_anchor_urb(urb, &data->bulk_anchor);
1521
1522         err = usb_submit_urb(urb, mem_flags);
1523         if (err < 0) {
1524                 if (err != -EPERM && err != -ENODEV)
1525                         bt_dev_err(hdev, "urb %p submission failed (%d)",
1526                                    urb, -err);
1527                 usb_unanchor_urb(urb);
1528         }
1529
1530         usb_free_urb(urb);
1531
1532         return err;
1533 }
1534
1535 static void btusb_isoc_complete(struct urb *urb)
1536 {
1537         struct hci_dev *hdev = urb->context;
1538         struct btusb_data *data = hci_get_drvdata(hdev);
1539         int i, err;
1540
1541         BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
1542                urb->actual_length);
1543
1544         if (!test_bit(HCI_RUNNING, &hdev->flags))
1545                 return;
1546
1547         if (urb->status == 0) {
1548                 for (i = 0; i < urb->number_of_packets; i++) {
1549                         unsigned int offset = urb->iso_frame_desc[i].offset;
1550                         unsigned int length = urb->iso_frame_desc[i].actual_length;
1551
1552                         if (urb->iso_frame_desc[i].status)
1553                                 continue;
1554
1555                         hdev->stat.byte_rx += length;
1556
1557                         if (btusb_recv_isoc(data, urb->transfer_buffer + offset,
1558                                             length) < 0) {
1559                                 bt_dev_err(hdev, "corrupted SCO packet");
1560                                 hdev->stat.err_rx++;
1561                         }
1562                 }
1563         } else if (urb->status == -ENOENT) {
1564                 /* Avoid suspend failed when usb_kill_urb */
1565                 return;
1566         }
1567
1568         if (!test_bit(BTUSB_ISOC_RUNNING, &data->flags))
1569                 return;
1570
1571         usb_anchor_urb(urb, &data->isoc_anchor);
1572
1573         err = usb_submit_urb(urb, GFP_ATOMIC);
1574         if (err < 0) {
1575                 /* -EPERM: urb is being killed;
1576                  * -ENODEV: device got disconnected
1577                  */
1578                 if (err != -EPERM && err != -ENODEV)
1579                         bt_dev_err(hdev, "urb %p failed to resubmit (%d)",
1580                                    urb, -err);
1581                 usb_unanchor_urb(urb);
1582         }
1583 }
1584
1585 static inline void __fill_isoc_descriptor_msbc(struct urb *urb, int len,
1586                                                int mtu, struct btusb_data *data)
1587 {
1588         int i = 0, offset = 0;
1589         unsigned int interval;
1590
1591         BT_DBG("len %d mtu %d", len, mtu);
1592
1593         /* For mSBC ALT 6 settings some chips need to transmit the data
1594          * continuously without the zero length of USB packets.
1595          */
1596         if (test_bit(BTUSB_ALT6_CONTINUOUS_TX, &data->flags))
1597                 goto ignore_usb_alt6_packet_flow;
1598
1599         /* For mSBC ALT 6 setting the host will send the packet at continuous
1600          * flow. As per core spec 5, vol 4, part B, table 2.1. For ALT setting
1601          * 6 the HCI PACKET INTERVAL should be 7.5ms for every usb packets.
1602          * To maintain the rate we send 63bytes of usb packets alternatively for
1603          * 7ms and 8ms to maintain the rate as 7.5ms.
1604          */
1605         if (data->usb_alt6_packet_flow) {
1606                 interval = 7;
1607                 data->usb_alt6_packet_flow = false;
1608         } else {
1609                 interval = 6;
1610                 data->usb_alt6_packet_flow = true;
1611         }
1612
1613         for (i = 0; i < interval; i++) {
1614                 urb->iso_frame_desc[i].offset = offset;
1615                 urb->iso_frame_desc[i].length = offset;
1616         }
1617
1618 ignore_usb_alt6_packet_flow:
1619         if (len && i < BTUSB_MAX_ISOC_FRAMES) {
1620                 urb->iso_frame_desc[i].offset = offset;
1621                 urb->iso_frame_desc[i].length = len;
1622                 i++;
1623         }
1624
1625         urb->number_of_packets = i;
1626 }
1627
1628 static inline void __fill_isoc_descriptor(struct urb *urb, int len, int mtu)
1629 {
1630         int i, offset = 0;
1631
1632         BT_DBG("len %d mtu %d", len, mtu);
1633
1634         for (i = 0; i < BTUSB_MAX_ISOC_FRAMES && len >= mtu;
1635                                         i++, offset += mtu, len -= mtu) {
1636                 urb->iso_frame_desc[i].offset = offset;
1637                 urb->iso_frame_desc[i].length = mtu;
1638         }
1639
1640         if (len && i < BTUSB_MAX_ISOC_FRAMES) {
1641                 urb->iso_frame_desc[i].offset = offset;
1642                 urb->iso_frame_desc[i].length = len;
1643                 i++;
1644         }
1645
1646         urb->number_of_packets = i;
1647 }
1648
1649 static int btusb_submit_isoc_urb(struct hci_dev *hdev, gfp_t mem_flags)
1650 {
1651         struct btusb_data *data = hci_get_drvdata(hdev);
1652         struct urb *urb;
1653         unsigned char *buf;
1654         unsigned int pipe;
1655         int err, size;
1656
1657         BT_DBG("%s", hdev->name);
1658
1659         if (!data->isoc_rx_ep)
1660                 return -ENODEV;
1661
1662         urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, mem_flags);
1663         if (!urb)
1664                 return -ENOMEM;
1665
1666         size = le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize) *
1667                                                 BTUSB_MAX_ISOC_FRAMES;
1668
1669         buf = kmalloc(size, mem_flags);
1670         if (!buf) {
1671                 usb_free_urb(urb);
1672                 return -ENOMEM;
1673         }
1674
1675         pipe = usb_rcvisocpipe(data->udev, data->isoc_rx_ep->bEndpointAddress);
1676
1677         usb_fill_int_urb(urb, data->udev, pipe, buf, size, btusb_isoc_complete,
1678                          hdev, data->isoc_rx_ep->bInterval);
1679
1680         urb->transfer_flags = URB_FREE_BUFFER | URB_ISO_ASAP;
1681
1682         __fill_isoc_descriptor(urb, size,
1683                                le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize));
1684
1685         usb_anchor_urb(urb, &data->isoc_anchor);
1686
1687         err = usb_submit_urb(urb, mem_flags);
1688         if (err < 0) {
1689                 if (err != -EPERM && err != -ENODEV)
1690                         bt_dev_err(hdev, "urb %p submission failed (%d)",
1691                                    urb, -err);
1692                 usb_unanchor_urb(urb);
1693         }
1694
1695         usb_free_urb(urb);
1696
1697         return err;
1698 }
1699
1700 static void btusb_diag_complete(struct urb *urb)
1701 {
1702         struct hci_dev *hdev = urb->context;
1703         struct btusb_data *data = hci_get_drvdata(hdev);
1704         int err;
1705
1706         BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
1707                urb->actual_length);
1708
1709         if (urb->status == 0) {
1710                 struct sk_buff *skb;
1711
1712                 skb = bt_skb_alloc(urb->actual_length, GFP_ATOMIC);
1713                 if (skb) {
1714                         skb_put_data(skb, urb->transfer_buffer,
1715                                      urb->actual_length);
1716                         hci_recv_diag(hdev, skb);
1717                 }
1718         } else if (urb->status == -ENOENT) {
1719                 /* Avoid suspend failed when usb_kill_urb */
1720                 return;
1721         }
1722
1723         if (!test_bit(BTUSB_DIAG_RUNNING, &data->flags))
1724                 return;
1725
1726         usb_anchor_urb(urb, &data->diag_anchor);
1727         usb_mark_last_busy(data->udev);
1728
1729         err = usb_submit_urb(urb, GFP_ATOMIC);
1730         if (err < 0) {
1731                 /* -EPERM: urb is being killed;
1732                  * -ENODEV: device got disconnected
1733                  */
1734                 if (err != -EPERM && err != -ENODEV)
1735                         bt_dev_err(hdev, "urb %p failed to resubmit (%d)",
1736                                    urb, -err);
1737                 usb_unanchor_urb(urb);
1738         }
1739 }
1740
1741 static int btusb_submit_diag_urb(struct hci_dev *hdev, gfp_t mem_flags)
1742 {
1743         struct btusb_data *data = hci_get_drvdata(hdev);
1744         struct urb *urb;
1745         unsigned char *buf;
1746         unsigned int pipe;
1747         int err, size = HCI_MAX_FRAME_SIZE;
1748
1749         BT_DBG("%s", hdev->name);
1750
1751         if (!data->diag_rx_ep)
1752                 return -ENODEV;
1753
1754         urb = usb_alloc_urb(0, mem_flags);
1755         if (!urb)
1756                 return -ENOMEM;
1757
1758         buf = kmalloc(size, mem_flags);
1759         if (!buf) {
1760                 usb_free_urb(urb);
1761                 return -ENOMEM;
1762         }
1763
1764         pipe = usb_rcvbulkpipe(data->udev, data->diag_rx_ep->bEndpointAddress);
1765
1766         usb_fill_bulk_urb(urb, data->udev, pipe, buf, size,
1767                           btusb_diag_complete, hdev);
1768
1769         urb->transfer_flags |= URB_FREE_BUFFER;
1770
1771         usb_mark_last_busy(data->udev);
1772         usb_anchor_urb(urb, &data->diag_anchor);
1773
1774         err = usb_submit_urb(urb, mem_flags);
1775         if (err < 0) {
1776                 if (err != -EPERM && err != -ENODEV)
1777                         bt_dev_err(hdev, "urb %p submission failed (%d)",
1778                                    urb, -err);
1779                 usb_unanchor_urb(urb);
1780         }
1781
1782         usb_free_urb(urb);
1783
1784         return err;
1785 }
1786
1787 static void btusb_tx_complete(struct urb *urb)
1788 {
1789         struct sk_buff *skb = urb->context;
1790         struct hci_dev *hdev = (struct hci_dev *)skb->dev;
1791         struct btusb_data *data = hci_get_drvdata(hdev);
1792         unsigned long flags;
1793
1794         BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
1795                urb->actual_length);
1796
1797         if (!test_bit(HCI_RUNNING, &hdev->flags))
1798                 goto done;
1799
1800         if (!urb->status) {
1801                 hdev->stat.byte_tx += urb->transfer_buffer_length;
1802         } else {
1803                 if (hci_skb_pkt_type(skb) == HCI_COMMAND_PKT)
1804                         hci_cmd_sync_cancel(hdev, -urb->status);
1805                 hdev->stat.err_tx++;
1806         }
1807
1808 done:
1809         spin_lock_irqsave(&data->txlock, flags);
1810         data->tx_in_flight--;
1811         spin_unlock_irqrestore(&data->txlock, flags);
1812
1813         kfree(urb->setup_packet);
1814
1815         kfree_skb(skb);
1816 }
1817
1818 static void btusb_isoc_tx_complete(struct urb *urb)
1819 {
1820         struct sk_buff *skb = urb->context;
1821         struct hci_dev *hdev = (struct hci_dev *)skb->dev;
1822
1823         BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
1824                urb->actual_length);
1825
1826         if (!test_bit(HCI_RUNNING, &hdev->flags))
1827                 goto done;
1828
1829         if (!urb->status)
1830                 hdev->stat.byte_tx += urb->transfer_buffer_length;
1831         else
1832                 hdev->stat.err_tx++;
1833
1834 done:
1835         kfree(urb->setup_packet);
1836
1837         kfree_skb(skb);
1838 }
1839
1840 static int btusb_open(struct hci_dev *hdev)
1841 {
1842         struct btusb_data *data = hci_get_drvdata(hdev);
1843         int err;
1844
1845         BT_DBG("%s", hdev->name);
1846
1847         err = usb_autopm_get_interface(data->intf);
1848         if (err < 0)
1849                 return err;
1850
1851         /* Patching USB firmware files prior to starting any URBs of HCI path
1852          * It is more safe to use USB bulk channel for downloading USB patch
1853          */
1854         if (data->setup_on_usb) {
1855                 err = data->setup_on_usb(hdev);
1856                 if (err < 0)
1857                         goto setup_fail;
1858         }
1859
1860         data->intf->needs_remote_wakeup = 1;
1861
1862         if (test_and_set_bit(BTUSB_INTR_RUNNING, &data->flags))
1863                 goto done;
1864
1865         err = btusb_submit_intr_urb(hdev, GFP_KERNEL);
1866         if (err < 0)
1867                 goto failed;
1868
1869         err = btusb_submit_bulk_urb(hdev, GFP_KERNEL);
1870         if (err < 0) {
1871                 usb_kill_anchored_urbs(&data->intr_anchor);
1872                 goto failed;
1873         }
1874
1875         set_bit(BTUSB_BULK_RUNNING, &data->flags);
1876         btusb_submit_bulk_urb(hdev, GFP_KERNEL);
1877
1878         if (data->diag) {
1879                 if (!btusb_submit_diag_urb(hdev, GFP_KERNEL))
1880                         set_bit(BTUSB_DIAG_RUNNING, &data->flags);
1881         }
1882
1883 done:
1884         usb_autopm_put_interface(data->intf);
1885         return 0;
1886
1887 failed:
1888         clear_bit(BTUSB_INTR_RUNNING, &data->flags);
1889 setup_fail:
1890         usb_autopm_put_interface(data->intf);
1891         return err;
1892 }
1893
1894 static void btusb_stop_traffic(struct btusb_data *data)
1895 {
1896         usb_kill_anchored_urbs(&data->intr_anchor);
1897         usb_kill_anchored_urbs(&data->bulk_anchor);
1898         usb_kill_anchored_urbs(&data->isoc_anchor);
1899         usb_kill_anchored_urbs(&data->diag_anchor);
1900         usb_kill_anchored_urbs(&data->ctrl_anchor);
1901 }
1902
1903 static int btusb_close(struct hci_dev *hdev)
1904 {
1905         struct btusb_data *data = hci_get_drvdata(hdev);
1906         int err;
1907
1908         BT_DBG("%s", hdev->name);
1909
1910         cancel_delayed_work(&data->rx_work);
1911         cancel_work_sync(&data->work);
1912         cancel_work_sync(&data->waker);
1913
1914         skb_queue_purge(&data->acl_q);
1915
1916         clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
1917         clear_bit(BTUSB_BULK_RUNNING, &data->flags);
1918         clear_bit(BTUSB_INTR_RUNNING, &data->flags);
1919         clear_bit(BTUSB_DIAG_RUNNING, &data->flags);
1920
1921         btusb_stop_traffic(data);
1922         btusb_free_frags(data);
1923
1924         err = usb_autopm_get_interface(data->intf);
1925         if (err < 0)
1926                 goto failed;
1927
1928         data->intf->needs_remote_wakeup = 0;
1929
1930         /* Enable remote wake up for auto-suspend */
1931         if (test_bit(BTUSB_WAKEUP_AUTOSUSPEND, &data->flags))
1932                 data->intf->needs_remote_wakeup = 1;
1933
1934         usb_autopm_put_interface(data->intf);
1935
1936 failed:
1937         usb_scuttle_anchored_urbs(&data->deferred);
1938         return 0;
1939 }
1940
1941 static int btusb_flush(struct hci_dev *hdev)
1942 {
1943         struct btusb_data *data = hci_get_drvdata(hdev);
1944
1945         BT_DBG("%s", hdev->name);
1946
1947         cancel_delayed_work(&data->rx_work);
1948
1949         skb_queue_purge(&data->acl_q);
1950
1951         usb_kill_anchored_urbs(&data->tx_anchor);
1952         btusb_free_frags(data);
1953
1954         return 0;
1955 }
1956
1957 static struct urb *alloc_ctrl_urb(struct hci_dev *hdev, struct sk_buff *skb)
1958 {
1959         struct btusb_data *data = hci_get_drvdata(hdev);
1960         struct usb_ctrlrequest *dr;
1961         struct urb *urb;
1962         unsigned int pipe;
1963
1964         urb = usb_alloc_urb(0, GFP_KERNEL);
1965         if (!urb)
1966                 return ERR_PTR(-ENOMEM);
1967
1968         dr = kmalloc(sizeof(*dr), GFP_KERNEL);
1969         if (!dr) {
1970                 usb_free_urb(urb);
1971                 return ERR_PTR(-ENOMEM);
1972         }
1973
1974         dr->bRequestType = data->cmdreq_type;
1975         dr->bRequest     = data->cmdreq;
1976         dr->wIndex       = 0;
1977         dr->wValue       = 0;
1978         dr->wLength      = __cpu_to_le16(skb->len);
1979
1980         pipe = usb_sndctrlpipe(data->udev, 0x00);
1981
1982         usb_fill_control_urb(urb, data->udev, pipe, (void *)dr,
1983                              skb->data, skb->len, btusb_tx_complete, skb);
1984
1985         skb->dev = (void *)hdev;
1986
1987         return urb;
1988 }
1989
1990 static struct urb *alloc_bulk_urb(struct hci_dev *hdev, struct sk_buff *skb)
1991 {
1992         struct btusb_data *data = hci_get_drvdata(hdev);
1993         struct urb *urb;
1994         unsigned int pipe;
1995
1996         if (!data->bulk_tx_ep)
1997                 return ERR_PTR(-ENODEV);
1998
1999         urb = usb_alloc_urb(0, GFP_KERNEL);
2000         if (!urb)
2001                 return ERR_PTR(-ENOMEM);
2002
2003         pipe = usb_sndbulkpipe(data->udev, data->bulk_tx_ep->bEndpointAddress);
2004
2005         usb_fill_bulk_urb(urb, data->udev, pipe,
2006                           skb->data, skb->len, btusb_tx_complete, skb);
2007
2008         skb->dev = (void *)hdev;
2009
2010         return urb;
2011 }
2012
2013 static struct urb *alloc_isoc_urb(struct hci_dev *hdev, struct sk_buff *skb)
2014 {
2015         struct btusb_data *data = hci_get_drvdata(hdev);
2016         struct urb *urb;
2017         unsigned int pipe;
2018
2019         if (!data->isoc_tx_ep)
2020                 return ERR_PTR(-ENODEV);
2021
2022         urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, GFP_KERNEL);
2023         if (!urb)
2024                 return ERR_PTR(-ENOMEM);
2025
2026         pipe = usb_sndisocpipe(data->udev, data->isoc_tx_ep->bEndpointAddress);
2027
2028         usb_fill_int_urb(urb, data->udev, pipe,
2029                          skb->data, skb->len, btusb_isoc_tx_complete,
2030                          skb, data->isoc_tx_ep->bInterval);
2031
2032         urb->transfer_flags  = URB_ISO_ASAP;
2033
2034         if (data->isoc_altsetting == 6)
2035                 __fill_isoc_descriptor_msbc(urb, skb->len,
2036                                             le16_to_cpu(data->isoc_tx_ep->wMaxPacketSize),
2037                                             data);
2038         else
2039                 __fill_isoc_descriptor(urb, skb->len,
2040                                        le16_to_cpu(data->isoc_tx_ep->wMaxPacketSize));
2041         skb->dev = (void *)hdev;
2042
2043         return urb;
2044 }
2045
2046 static int submit_tx_urb(struct hci_dev *hdev, struct urb *urb)
2047 {
2048         struct btusb_data *data = hci_get_drvdata(hdev);
2049         int err;
2050
2051         usb_anchor_urb(urb, &data->tx_anchor);
2052
2053         err = usb_submit_urb(urb, GFP_KERNEL);
2054         if (err < 0) {
2055                 if (err != -EPERM && err != -ENODEV)
2056                         bt_dev_err(hdev, "urb %p submission failed (%d)",
2057                                    urb, -err);
2058                 kfree(urb->setup_packet);
2059                 usb_unanchor_urb(urb);
2060         } else {
2061                 usb_mark_last_busy(data->udev);
2062         }
2063
2064         usb_free_urb(urb);
2065         return err;
2066 }
2067
2068 static int submit_or_queue_tx_urb(struct hci_dev *hdev, struct urb *urb)
2069 {
2070         struct btusb_data *data = hci_get_drvdata(hdev);
2071         unsigned long flags;
2072         bool suspending;
2073
2074         spin_lock_irqsave(&data->txlock, flags);
2075         suspending = test_bit(BTUSB_SUSPENDING, &data->flags);
2076         if (!suspending)
2077                 data->tx_in_flight++;
2078         spin_unlock_irqrestore(&data->txlock, flags);
2079
2080         if (!suspending)
2081                 return submit_tx_urb(hdev, urb);
2082
2083         usb_anchor_urb(urb, &data->deferred);
2084         schedule_work(&data->waker);
2085
2086         usb_free_urb(urb);
2087         return 0;
2088 }
2089
2090 static int btusb_send_frame(struct hci_dev *hdev, struct sk_buff *skb)
2091 {
2092         struct urb *urb;
2093
2094         BT_DBG("%s", hdev->name);
2095
2096         switch (hci_skb_pkt_type(skb)) {
2097         case HCI_COMMAND_PKT:
2098                 urb = alloc_ctrl_urb(hdev, skb);
2099                 if (IS_ERR(urb))
2100                         return PTR_ERR(urb);
2101
2102                 hdev->stat.cmd_tx++;
2103                 return submit_or_queue_tx_urb(hdev, urb);
2104
2105         case HCI_ACLDATA_PKT:
2106                 urb = alloc_bulk_urb(hdev, skb);
2107                 if (IS_ERR(urb))
2108                         return PTR_ERR(urb);
2109
2110                 hdev->stat.acl_tx++;
2111                 return submit_or_queue_tx_urb(hdev, urb);
2112
2113         case HCI_SCODATA_PKT:
2114                 if (hci_conn_num(hdev, SCO_LINK) < 1)
2115                         return -ENODEV;
2116
2117                 urb = alloc_isoc_urb(hdev, skb);
2118                 if (IS_ERR(urb))
2119                         return PTR_ERR(urb);
2120
2121                 hdev->stat.sco_tx++;
2122                 return submit_tx_urb(hdev, urb);
2123
2124         case HCI_ISODATA_PKT:
2125                 urb = alloc_bulk_urb(hdev, skb);
2126                 if (IS_ERR(urb))
2127                         return PTR_ERR(urb);
2128
2129                 return submit_or_queue_tx_urb(hdev, urb);
2130         }
2131
2132         return -EILSEQ;
2133 }
2134
2135 static void btusb_notify(struct hci_dev *hdev, unsigned int evt)
2136 {
2137         struct btusb_data *data = hci_get_drvdata(hdev);
2138
2139         BT_DBG("%s evt %d", hdev->name, evt);
2140
2141         if (hci_conn_num(hdev, SCO_LINK) != data->sco_num) {
2142                 data->sco_num = hci_conn_num(hdev, SCO_LINK);
2143                 data->air_mode = evt;
2144                 schedule_work(&data->work);
2145         }
2146 }
2147
2148 static inline int __set_isoc_interface(struct hci_dev *hdev, int altsetting)
2149 {
2150         struct btusb_data *data = hci_get_drvdata(hdev);
2151         struct usb_interface *intf = data->isoc;
2152         struct usb_endpoint_descriptor *ep_desc;
2153         int i, err;
2154
2155         if (!data->isoc)
2156                 return -ENODEV;
2157
2158         err = usb_set_interface(data->udev, data->isoc_ifnum, altsetting);
2159         if (err < 0) {
2160                 bt_dev_err(hdev, "setting interface failed (%d)", -err);
2161                 return err;
2162         }
2163
2164         data->isoc_altsetting = altsetting;
2165
2166         data->isoc_tx_ep = NULL;
2167         data->isoc_rx_ep = NULL;
2168
2169         for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
2170                 ep_desc = &intf->cur_altsetting->endpoint[i].desc;
2171
2172                 if (!data->isoc_tx_ep && usb_endpoint_is_isoc_out(ep_desc)) {
2173                         data->isoc_tx_ep = ep_desc;
2174                         continue;
2175                 }
2176
2177                 if (!data->isoc_rx_ep && usb_endpoint_is_isoc_in(ep_desc)) {
2178                         data->isoc_rx_ep = ep_desc;
2179                         continue;
2180                 }
2181         }
2182
2183         if (!data->isoc_tx_ep || !data->isoc_rx_ep) {
2184                 bt_dev_err(hdev, "invalid SCO descriptors");
2185                 return -ENODEV;
2186         }
2187
2188         return 0;
2189 }
2190
2191 static int btusb_switch_alt_setting(struct hci_dev *hdev, int new_alts)
2192 {
2193         struct btusb_data *data = hci_get_drvdata(hdev);
2194         int err;
2195
2196         if (data->isoc_altsetting != new_alts) {
2197                 unsigned long flags;
2198
2199                 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
2200                 usb_kill_anchored_urbs(&data->isoc_anchor);
2201
2202                 /* When isochronous alternate setting needs to be
2203                  * changed, because SCO connection has been added
2204                  * or removed, a packet fragment may be left in the
2205                  * reassembling state. This could lead to wrongly
2206                  * assembled fragments.
2207                  *
2208                  * Clear outstanding fragment when selecting a new
2209                  * alternate setting.
2210                  */
2211                 spin_lock_irqsave(&data->rxlock, flags);
2212                 dev_kfree_skb_irq(data->sco_skb);
2213                 data->sco_skb = NULL;
2214                 spin_unlock_irqrestore(&data->rxlock, flags);
2215
2216                 err = __set_isoc_interface(hdev, new_alts);
2217                 if (err < 0)
2218                         return err;
2219         }
2220
2221         if (!test_and_set_bit(BTUSB_ISOC_RUNNING, &data->flags)) {
2222                 if (btusb_submit_isoc_urb(hdev, GFP_KERNEL) < 0)
2223                         clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
2224                 else
2225                         btusb_submit_isoc_urb(hdev, GFP_KERNEL);
2226         }
2227
2228         return 0;
2229 }
2230
2231 static struct usb_host_interface *btusb_find_altsetting(struct btusb_data *data,
2232                                                         int alt)
2233 {
2234         struct usb_interface *intf = data->isoc;
2235         int i;
2236
2237         BT_DBG("Looking for Alt no :%d", alt);
2238
2239         if (!intf)
2240                 return NULL;
2241
2242         for (i = 0; i < intf->num_altsetting; i++) {
2243                 if (intf->altsetting[i].desc.bAlternateSetting == alt)
2244                         return &intf->altsetting[i];
2245         }
2246
2247         return NULL;
2248 }
2249
2250 static void btusb_work(struct work_struct *work)
2251 {
2252         struct btusb_data *data = container_of(work, struct btusb_data, work);
2253         struct hci_dev *hdev = data->hdev;
2254         int new_alts = 0;
2255         int err;
2256
2257         if (data->sco_num > 0) {
2258                 if (!test_bit(BTUSB_DID_ISO_RESUME, &data->flags)) {
2259                         err = usb_autopm_get_interface(data->isoc ? data->isoc : data->intf);
2260                         if (err < 0) {
2261                                 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
2262                                 usb_kill_anchored_urbs(&data->isoc_anchor);
2263                                 return;
2264                         }
2265
2266                         set_bit(BTUSB_DID_ISO_RESUME, &data->flags);
2267                 }
2268
2269                 if (data->air_mode == HCI_NOTIFY_ENABLE_SCO_CVSD) {
2270                         if (hdev->voice_setting & 0x0020) {
2271                                 static const int alts[3] = { 2, 4, 5 };
2272
2273                                 new_alts = alts[data->sco_num - 1];
2274                         } else {
2275                                 new_alts = data->sco_num;
2276                         }
2277                 } else if (data->air_mode == HCI_NOTIFY_ENABLE_SCO_TRANSP) {
2278                         /* Bluetooth USB spec recommends alt 6 (63 bytes), but
2279                          * many adapters do not support it.  Alt 1 appears to
2280                          * work for all adapters that do not have alt 6, and
2281                          * which work with WBS at all.  Some devices prefer
2282                          * alt 3 (HCI payload >= 60 Bytes let air packet
2283                          * data satisfy 60 bytes), requiring
2284                          * MTU >= 3 (packets) * 25 (size) - 3 (headers) = 72
2285                          * see also Core spec 5, vol 4, B 2.1.1 & Table 2.1.
2286                          */
2287                         if (btusb_find_altsetting(data, 6))
2288                                 new_alts = 6;
2289                         else if (btusb_find_altsetting(data, 3) &&
2290                                  hdev->sco_mtu >= 72 &&
2291                                  test_bit(BTUSB_USE_ALT3_FOR_WBS, &data->flags))
2292                                 new_alts = 3;
2293                         else
2294                                 new_alts = 1;
2295                 }
2296
2297                 if (btusb_switch_alt_setting(hdev, new_alts) < 0)
2298                         bt_dev_err(hdev, "set USB alt:(%d) failed!", new_alts);
2299         } else {
2300                 usb_kill_anchored_urbs(&data->isoc_anchor);
2301
2302                 if (test_and_clear_bit(BTUSB_ISOC_RUNNING, &data->flags))
2303                         __set_isoc_interface(hdev, 0);
2304
2305                 if (test_and_clear_bit(BTUSB_DID_ISO_RESUME, &data->flags))
2306                         usb_autopm_put_interface(data->isoc ? data->isoc : data->intf);
2307         }
2308 }
2309
2310 static void btusb_waker(struct work_struct *work)
2311 {
2312         struct btusb_data *data = container_of(work, struct btusb_data, waker);
2313         int err;
2314
2315         err = usb_autopm_get_interface(data->intf);
2316         if (err < 0)
2317                 return;
2318
2319         usb_autopm_put_interface(data->intf);
2320 }
2321
2322 static void btusb_rx_work(struct work_struct *work)
2323 {
2324         struct btusb_data *data = container_of(work, struct btusb_data,
2325                                                rx_work.work);
2326         struct sk_buff *skb;
2327
2328         /* Dequeue ACL data received during the interval */
2329         while ((skb = skb_dequeue(&data->acl_q)))
2330                 data->recv_acl(data->hdev, skb);
2331 }
2332
2333 static int btusb_setup_bcm92035(struct hci_dev *hdev)
2334 {
2335         struct sk_buff *skb;
2336         u8 val = 0x00;
2337
2338         BT_DBG("%s", hdev->name);
2339
2340         skb = __hci_cmd_sync(hdev, 0xfc3b, 1, &val, HCI_INIT_TIMEOUT);
2341         if (IS_ERR(skb))
2342                 bt_dev_err(hdev, "BCM92035 command failed (%ld)", PTR_ERR(skb));
2343         else
2344                 kfree_skb(skb);
2345
2346         return 0;
2347 }
2348
2349 static int btusb_setup_csr(struct hci_dev *hdev)
2350 {
2351         struct btusb_data *data = hci_get_drvdata(hdev);
2352         u16 bcdDevice = le16_to_cpu(data->udev->descriptor.bcdDevice);
2353         struct hci_rp_read_local_version *rp;
2354         struct sk_buff *skb;
2355         bool is_fake = false;
2356         int ret;
2357
2358         BT_DBG("%s", hdev->name);
2359
2360         skb = __hci_cmd_sync(hdev, HCI_OP_READ_LOCAL_VERSION, 0, NULL,
2361                              HCI_INIT_TIMEOUT);
2362         if (IS_ERR(skb)) {
2363                 int err = PTR_ERR(skb);
2364                 bt_dev_err(hdev, "CSR: Local version failed (%d)", err);
2365                 return err;
2366         }
2367
2368         rp = skb_pull_data(skb, sizeof(*rp));
2369         if (!rp) {
2370                 bt_dev_err(hdev, "CSR: Local version length mismatch");
2371                 kfree_skb(skb);
2372                 return -EIO;
2373         }
2374
2375         bt_dev_info(hdev, "CSR: Setting up dongle with HCI ver=%u rev=%04x",
2376                     rp->hci_ver, le16_to_cpu(rp->hci_rev));
2377
2378         bt_dev_info(hdev, "LMP ver=%u subver=%04x; manufacturer=%u",
2379                     rp->lmp_ver, le16_to_cpu(rp->lmp_subver),
2380                     le16_to_cpu(rp->manufacturer));
2381
2382         /* Detect a wide host of Chinese controllers that aren't CSR.
2383          *
2384          * Known fake bcdDevices: 0x0100, 0x0134, 0x1915, 0x2520, 0x7558, 0x8891
2385          *
2386          * The main thing they have in common is that these are really popular low-cost
2387          * options that support newer Bluetooth versions but rely on heavy VID/PID
2388          * squatting of this poor old Bluetooth 1.1 device. Even sold as such.
2389          *
2390          * We detect actual CSR devices by checking that the HCI manufacturer code
2391          * is Cambridge Silicon Radio (10) and ensuring that LMP sub-version and
2392          * HCI rev values always match. As they both store the firmware number.
2393          */
2394         if (le16_to_cpu(rp->manufacturer) != 10 ||
2395             le16_to_cpu(rp->hci_rev) != le16_to_cpu(rp->lmp_subver))
2396                 is_fake = true;
2397
2398         /* Known legit CSR firmware build numbers and their supported BT versions:
2399          * - 1.1 (0x1) -> 0x0073, 0x020d, 0x033c, 0x034e
2400          * - 1.2 (0x2) ->                 0x04d9, 0x0529
2401          * - 2.0 (0x3) ->         0x07a6, 0x07ad, 0x0c5c
2402          * - 2.1 (0x4) ->         0x149c, 0x1735, 0x1899 (0x1899 is a BlueCore4-External)
2403          * - 4.0 (0x6) ->         0x1d86, 0x2031, 0x22bb
2404          *
2405          * e.g. Real CSR dongles with LMP subversion 0x73 are old enough that
2406          *      support BT 1.1 only; so it's a dead giveaway when some
2407          *      third-party BT 4.0 dongle reuses it.
2408          */
2409         else if (le16_to_cpu(rp->lmp_subver) <= 0x034e &&
2410                  rp->hci_ver > BLUETOOTH_VER_1_1)
2411                 is_fake = true;
2412
2413         else if (le16_to_cpu(rp->lmp_subver) <= 0x0529 &&
2414                  rp->hci_ver > BLUETOOTH_VER_1_2)
2415                 is_fake = true;
2416
2417         else if (le16_to_cpu(rp->lmp_subver) <= 0x0c5c &&
2418                  rp->hci_ver > BLUETOOTH_VER_2_0)
2419                 is_fake = true;
2420
2421         else if (le16_to_cpu(rp->lmp_subver) <= 0x1899 &&
2422                  rp->hci_ver > BLUETOOTH_VER_2_1)
2423                 is_fake = true;
2424
2425         else if (le16_to_cpu(rp->lmp_subver) <= 0x22bb &&
2426                  rp->hci_ver > BLUETOOTH_VER_4_0)
2427                 is_fake = true;
2428
2429         /* Other clones which beat all the above checks */
2430         else if (bcdDevice == 0x0134 &&
2431                  le16_to_cpu(rp->lmp_subver) == 0x0c5c &&
2432                  rp->hci_ver == BLUETOOTH_VER_2_0)
2433                 is_fake = true;
2434
2435         if (is_fake) {
2436                 bt_dev_warn(hdev, "CSR: Unbranded CSR clone detected; adding workarounds and force-suspending once...");
2437
2438                 /* Generally these clones have big discrepancies between
2439                  * advertised features and what's actually supported.
2440                  * Probably will need to be expanded in the future;
2441                  * without these the controller will lock up.
2442                  */
2443                 set_bit(HCI_QUIRK_BROKEN_STORED_LINK_KEY, &hdev->quirks);
2444                 set_bit(HCI_QUIRK_BROKEN_ERR_DATA_REPORTING, &hdev->quirks);
2445                 set_bit(HCI_QUIRK_BROKEN_FILTER_CLEAR_ALL, &hdev->quirks);
2446                 set_bit(HCI_QUIRK_NO_SUSPEND_NOTIFIER, &hdev->quirks);
2447
2448                 /* Clear the reset quirk since this is not an actual
2449                  * early Bluetooth 1.1 device from CSR.
2450                  */
2451                 clear_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
2452                 clear_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks);
2453
2454                 /*
2455                  * Special workaround for these BT 4.0 chip clones, and potentially more:
2456                  *
2457                  * - 0x0134: a Barrot 8041a02                 (HCI rev: 0x0810 sub: 0x1012)
2458                  * - 0x7558: IC markings FR3191AHAL 749H15143 (HCI rev/sub-version: 0x0709)
2459                  *
2460                  * These controllers are really messed-up.
2461                  *
2462                  * 1. Their bulk RX endpoint will never report any data unless
2463                  *    the device was suspended at least once (yes, really).
2464                  * 2. They will not wakeup when autosuspended and receiving data
2465                  *    on their bulk RX endpoint from e.g. a keyboard or mouse
2466                  *    (IOW remote-wakeup support is broken for the bulk endpoint).
2467                  *
2468                  * To fix 1. enable runtime-suspend, force-suspend the
2469                  * HCI and then wake-it up by disabling runtime-suspend.
2470                  *
2471                  * To fix 2. clear the HCI's can_wake flag, this way the HCI
2472                  * will still be autosuspended when it is not open.
2473                  *
2474                  * --
2475                  *
2476                  * Because these are widespread problems we prefer generic solutions; so
2477                  * apply this initialization quirk to every controller that gets here,
2478                  * it should be harmless. The alternative is to not work at all.
2479                  */
2480                 pm_runtime_allow(&data->udev->dev);
2481
2482                 ret = pm_runtime_suspend(&data->udev->dev);
2483                 if (ret >= 0)
2484                         msleep(200);
2485                 else
2486                         bt_dev_warn(hdev, "CSR: Couldn't suspend the device for our Barrot 8041a02 receive-issue workaround");
2487
2488                 pm_runtime_forbid(&data->udev->dev);
2489
2490                 device_set_wakeup_capable(&data->udev->dev, false);
2491
2492                 /* Re-enable autosuspend if this was requested */
2493                 if (enable_autosuspend)
2494                         usb_enable_autosuspend(data->udev);
2495         }
2496
2497         kfree_skb(skb);
2498
2499         return 0;
2500 }
2501
2502 static int inject_cmd_complete(struct hci_dev *hdev, __u16 opcode)
2503 {
2504         struct sk_buff *skb;
2505         struct hci_event_hdr *hdr;
2506         struct hci_ev_cmd_complete *evt;
2507
2508         skb = bt_skb_alloc(sizeof(*hdr) + sizeof(*evt) + 1, GFP_KERNEL);
2509         if (!skb)
2510                 return -ENOMEM;
2511
2512         hdr = skb_put(skb, sizeof(*hdr));
2513         hdr->evt = HCI_EV_CMD_COMPLETE;
2514         hdr->plen = sizeof(*evt) + 1;
2515
2516         evt = skb_put(skb, sizeof(*evt));
2517         evt->ncmd = 0x01;
2518         evt->opcode = cpu_to_le16(opcode);
2519
2520         skb_put_u8(skb, 0x00);
2521
2522         hci_skb_pkt_type(skb) = HCI_EVENT_PKT;
2523
2524         return hci_recv_frame(hdev, skb);
2525 }
2526
2527 static int btusb_recv_bulk_intel(struct btusb_data *data, void *buffer,
2528                                  int count)
2529 {
2530         struct hci_dev *hdev = data->hdev;
2531
2532         /* When the device is in bootloader mode, then it can send
2533          * events via the bulk endpoint. These events are treated the
2534          * same way as the ones received from the interrupt endpoint.
2535          */
2536         if (btintel_test_flag(hdev, INTEL_BOOTLOADER))
2537                 return btusb_recv_intr(data, buffer, count);
2538
2539         return btusb_recv_bulk(data, buffer, count);
2540 }
2541
2542 static int btusb_send_frame_intel(struct hci_dev *hdev, struct sk_buff *skb)
2543 {
2544         struct urb *urb;
2545
2546         BT_DBG("%s", hdev->name);
2547
2548         switch (hci_skb_pkt_type(skb)) {
2549         case HCI_COMMAND_PKT:
2550                 if (btintel_test_flag(hdev, INTEL_BOOTLOADER)) {
2551                         struct hci_command_hdr *cmd = (void *)skb->data;
2552                         __u16 opcode = le16_to_cpu(cmd->opcode);
2553
2554                         /* When in bootloader mode and the command 0xfc09
2555                          * is received, it needs to be send down the
2556                          * bulk endpoint. So allocate a bulk URB instead.
2557                          */
2558                         if (opcode == 0xfc09)
2559                                 urb = alloc_bulk_urb(hdev, skb);
2560                         else
2561                                 urb = alloc_ctrl_urb(hdev, skb);
2562
2563                         /* When the 0xfc01 command is issued to boot into
2564                          * the operational firmware, it will actually not
2565                          * send a command complete event. To keep the flow
2566                          * control working inject that event here.
2567                          */
2568                         if (opcode == 0xfc01)
2569                                 inject_cmd_complete(hdev, opcode);
2570                 } else {
2571                         urb = alloc_ctrl_urb(hdev, skb);
2572                 }
2573                 if (IS_ERR(urb))
2574                         return PTR_ERR(urb);
2575
2576                 hdev->stat.cmd_tx++;
2577                 return submit_or_queue_tx_urb(hdev, urb);
2578
2579         case HCI_ACLDATA_PKT:
2580                 urb = alloc_bulk_urb(hdev, skb);
2581                 if (IS_ERR(urb))
2582                         return PTR_ERR(urb);
2583
2584                 hdev->stat.acl_tx++;
2585                 return submit_or_queue_tx_urb(hdev, urb);
2586
2587         case HCI_SCODATA_PKT:
2588                 if (hci_conn_num(hdev, SCO_LINK) < 1)
2589                         return -ENODEV;
2590
2591                 urb = alloc_isoc_urb(hdev, skb);
2592                 if (IS_ERR(urb))
2593                         return PTR_ERR(urb);
2594
2595                 hdev->stat.sco_tx++;
2596                 return submit_tx_urb(hdev, urb);
2597
2598         case HCI_ISODATA_PKT:
2599                 urb = alloc_bulk_urb(hdev, skb);
2600                 if (IS_ERR(urb))
2601                         return PTR_ERR(urb);
2602
2603                 return submit_or_queue_tx_urb(hdev, urb);
2604         }
2605
2606         return -EILSEQ;
2607 }
2608
2609 static int btusb_setup_realtek(struct hci_dev *hdev)
2610 {
2611         struct btusb_data *data = hci_get_drvdata(hdev);
2612         int ret;
2613
2614         ret = btrtl_setup_realtek(hdev);
2615
2616         if (btrealtek_test_flag(data->hdev, REALTEK_ALT6_CONTINUOUS_TX_CHIP))
2617                 set_bit(BTUSB_ALT6_CONTINUOUS_TX, &data->flags);
2618
2619         return ret;
2620 }
2621
2622 static int btusb_recv_event_realtek(struct hci_dev *hdev, struct sk_buff *skb)
2623 {
2624         if (skb->data[0] == HCI_VENDOR_PKT && skb->data[2] == RTK_SUB_EVENT_CODE_COREDUMP) {
2625                 struct rtk_dev_coredump_hdr hdr = {
2626                         .code = RTK_DEVCOREDUMP_CODE_MEMDUMP,
2627                 };
2628
2629                 bt_dev_dbg(hdev, "RTL: received coredump vendor evt, len %u",
2630                         skb->len);
2631
2632                 btusb_rtl_alloc_devcoredump(hdev, &hdr, skb->data, skb->len);
2633                 kfree_skb(skb);
2634
2635                 return 0;
2636         }
2637
2638         return hci_recv_frame(hdev, skb);
2639 }
2640
2641 /* UHW CR mapping */
2642 #define MTK_BT_MISC             0x70002510
2643 #define MTK_BT_SUBSYS_RST       0x70002610
2644 #define MTK_UDMA_INT_STA_BT     0x74000024
2645 #define MTK_UDMA_INT_STA_BT1    0x74000308
2646 #define MTK_BT_WDT_STATUS       0x740003A0
2647 #define MTK_EP_RST_OPT          0x74011890
2648 #define MTK_EP_RST_IN_OUT_OPT   0x00010001
2649 #define MTK_BT_RST_DONE         0x00000100
2650 #define MTK_BT_RESET_REG_CONNV3 0x70028610
2651 #define MTK_BT_READ_DEV_ID      0x70010200
2652
2653
2654 static void btusb_mtk_wmt_recv(struct urb *urb)
2655 {
2656         struct hci_dev *hdev = urb->context;
2657         struct btusb_data *data = hci_get_drvdata(hdev);
2658         struct sk_buff *skb;
2659         int err;
2660
2661         if (urb->status == 0 && urb->actual_length > 0) {
2662                 hdev->stat.byte_rx += urb->actual_length;
2663
2664                 /* WMT event shouldn't be fragmented and the size should be
2665                  * less than HCI_WMT_MAX_EVENT_SIZE.
2666                  */
2667                 skb = bt_skb_alloc(HCI_WMT_MAX_EVENT_SIZE, GFP_ATOMIC);
2668                 if (!skb) {
2669                         hdev->stat.err_rx++;
2670                         kfree(urb->setup_packet);
2671                         return;
2672                 }
2673
2674                 hci_skb_pkt_type(skb) = HCI_EVENT_PKT;
2675                 skb_put_data(skb, urb->transfer_buffer, urb->actual_length);
2676
2677                 /* When someone waits for the WMT event, the skb is being cloned
2678                  * and being processed the events from there then.
2679                  */
2680                 if (test_bit(BTUSB_TX_WAIT_VND_EVT, &data->flags)) {
2681                         data->evt_skb = skb_clone(skb, GFP_ATOMIC);
2682                         if (!data->evt_skb) {
2683                                 kfree_skb(skb);
2684                                 kfree(urb->setup_packet);
2685                                 return;
2686                         }
2687                 }
2688
2689                 err = hci_recv_frame(hdev, skb);
2690                 if (err < 0) {
2691                         kfree_skb(data->evt_skb);
2692                         data->evt_skb = NULL;
2693                         kfree(urb->setup_packet);
2694                         return;
2695                 }
2696
2697                 if (test_and_clear_bit(BTUSB_TX_WAIT_VND_EVT,
2698                                        &data->flags)) {
2699                         /* Barrier to sync with other CPUs */
2700                         smp_mb__after_atomic();
2701                         wake_up_bit(&data->flags,
2702                                     BTUSB_TX_WAIT_VND_EVT);
2703                 }
2704                 kfree(urb->setup_packet);
2705                 return;
2706         } else if (urb->status == -ENOENT) {
2707                 /* Avoid suspend failed when usb_kill_urb */
2708                 return;
2709         }
2710
2711         usb_mark_last_busy(data->udev);
2712
2713         /* The URB complete handler is still called with urb->actual_length = 0
2714          * when the event is not available, so we should keep re-submitting
2715          * URB until WMT event returns, Also, It's necessary to wait some time
2716          * between the two consecutive control URBs to relax the target device
2717          * to generate the event. Otherwise, the WMT event cannot return from
2718          * the device successfully.
2719          */
2720         udelay(500);
2721
2722         usb_anchor_urb(urb, &data->ctrl_anchor);
2723         err = usb_submit_urb(urb, GFP_ATOMIC);
2724         if (err < 0) {
2725                 kfree(urb->setup_packet);
2726                 /* -EPERM: urb is being killed;
2727                  * -ENODEV: device got disconnected
2728                  */
2729                 if (err != -EPERM && err != -ENODEV)
2730                         bt_dev_err(hdev, "urb %p failed to resubmit (%d)",
2731                                    urb, -err);
2732                 usb_unanchor_urb(urb);
2733         }
2734 }
2735
2736 static int btusb_mtk_submit_wmt_recv_urb(struct hci_dev *hdev)
2737 {
2738         struct btusb_data *data = hci_get_drvdata(hdev);
2739         struct usb_ctrlrequest *dr;
2740         unsigned char *buf;
2741         int err, size = 64;
2742         unsigned int pipe;
2743         struct urb *urb;
2744
2745         urb = usb_alloc_urb(0, GFP_KERNEL);
2746         if (!urb)
2747                 return -ENOMEM;
2748
2749         dr = kmalloc(sizeof(*dr), GFP_KERNEL);
2750         if (!dr) {
2751                 usb_free_urb(urb);
2752                 return -ENOMEM;
2753         }
2754
2755         dr->bRequestType = USB_TYPE_VENDOR | USB_DIR_IN;
2756         dr->bRequest     = 1;
2757         dr->wIndex       = cpu_to_le16(0);
2758         dr->wValue       = cpu_to_le16(48);
2759         dr->wLength      = cpu_to_le16(size);
2760
2761         buf = kmalloc(size, GFP_KERNEL);
2762         if (!buf) {
2763                 kfree(dr);
2764                 usb_free_urb(urb);
2765                 return -ENOMEM;
2766         }
2767
2768         pipe = usb_rcvctrlpipe(data->udev, 0);
2769
2770         usb_fill_control_urb(urb, data->udev, pipe, (void *)dr,
2771                              buf, size, btusb_mtk_wmt_recv, hdev);
2772
2773         urb->transfer_flags |= URB_FREE_BUFFER;
2774
2775         usb_anchor_urb(urb, &data->ctrl_anchor);
2776         err = usb_submit_urb(urb, GFP_KERNEL);
2777         if (err < 0) {
2778                 if (err != -EPERM && err != -ENODEV)
2779                         bt_dev_err(hdev, "urb %p submission failed (%d)",
2780                                    urb, -err);
2781                 usb_unanchor_urb(urb);
2782         }
2783
2784         usb_free_urb(urb);
2785
2786         return err;
2787 }
2788
2789 static int btusb_mtk_hci_wmt_sync(struct hci_dev *hdev,
2790                                   struct btmtk_hci_wmt_params *wmt_params)
2791 {
2792         struct btusb_data *data = hci_get_drvdata(hdev);
2793         struct btmtk_hci_wmt_evt_funcc *wmt_evt_funcc;
2794         u32 hlen, status = BTMTK_WMT_INVALID;
2795         struct btmtk_hci_wmt_evt *wmt_evt;
2796         struct btmtk_hci_wmt_cmd *wc;
2797         struct btmtk_wmt_hdr *hdr;
2798         int err;
2799
2800         /* Send the WMT command and wait until the WMT event returns */
2801         hlen = sizeof(*hdr) + wmt_params->dlen;
2802         if (hlen > 255)
2803                 return -EINVAL;
2804
2805         wc = kzalloc(hlen, GFP_KERNEL);
2806         if (!wc)
2807                 return -ENOMEM;
2808
2809         hdr = &wc->hdr;
2810         hdr->dir = 1;
2811         hdr->op = wmt_params->op;
2812         hdr->dlen = cpu_to_le16(wmt_params->dlen + 1);
2813         hdr->flag = wmt_params->flag;
2814         memcpy(wc->data, wmt_params->data, wmt_params->dlen);
2815
2816         set_bit(BTUSB_TX_WAIT_VND_EVT, &data->flags);
2817
2818         /* WMT cmd/event doesn't follow up the generic HCI cmd/event handling,
2819          * it needs constantly polling control pipe until the host received the
2820          * WMT event, thus, we should require to specifically acquire PM counter
2821          * on the USB to prevent the interface from entering auto suspended
2822          * while WMT cmd/event in progress.
2823          */
2824         err = usb_autopm_get_interface(data->intf);
2825         if (err < 0)
2826                 goto err_free_wc;
2827
2828         err = __hci_cmd_send(hdev, 0xfc6f, hlen, wc);
2829
2830         if (err < 0) {
2831                 clear_bit(BTUSB_TX_WAIT_VND_EVT, &data->flags);
2832                 usb_autopm_put_interface(data->intf);
2833                 goto err_free_wc;
2834         }
2835
2836         /* Submit control IN URB on demand to process the WMT event */
2837         err = btusb_mtk_submit_wmt_recv_urb(hdev);
2838
2839         usb_autopm_put_interface(data->intf);
2840
2841         if (err < 0)
2842                 goto err_free_wc;
2843
2844         /* The vendor specific WMT commands are all answered by a vendor
2845          * specific event and will have the Command Status or Command
2846          * Complete as with usual HCI command flow control.
2847          *
2848          * After sending the command, wait for BTUSB_TX_WAIT_VND_EVT
2849          * state to be cleared. The driver specific event receive routine
2850          * will clear that state and with that indicate completion of the
2851          * WMT command.
2852          */
2853         err = wait_on_bit_timeout(&data->flags, BTUSB_TX_WAIT_VND_EVT,
2854                                   TASK_INTERRUPTIBLE, HCI_INIT_TIMEOUT);
2855         if (err == -EINTR) {
2856                 bt_dev_err(hdev, "Execution of wmt command interrupted");
2857                 clear_bit(BTUSB_TX_WAIT_VND_EVT, &data->flags);
2858                 goto err_free_wc;
2859         }
2860
2861         if (err) {
2862                 bt_dev_err(hdev, "Execution of wmt command timed out");
2863                 clear_bit(BTUSB_TX_WAIT_VND_EVT, &data->flags);
2864                 err = -ETIMEDOUT;
2865                 goto err_free_wc;
2866         }
2867
2868         if (data->evt_skb == NULL)
2869                 goto err_free_wc;
2870
2871         /* Parse and handle the return WMT event */
2872         wmt_evt = (struct btmtk_hci_wmt_evt *)data->evt_skb->data;
2873         if (wmt_evt->whdr.op != hdr->op) {
2874                 bt_dev_err(hdev, "Wrong op received %d expected %d",
2875                            wmt_evt->whdr.op, hdr->op);
2876                 err = -EIO;
2877                 goto err_free_skb;
2878         }
2879
2880         switch (wmt_evt->whdr.op) {
2881         case BTMTK_WMT_SEMAPHORE:
2882                 if (wmt_evt->whdr.flag == 2)
2883                         status = BTMTK_WMT_PATCH_UNDONE;
2884                 else
2885                         status = BTMTK_WMT_PATCH_DONE;
2886                 break;
2887         case BTMTK_WMT_FUNC_CTRL:
2888                 wmt_evt_funcc = (struct btmtk_hci_wmt_evt_funcc *)wmt_evt;
2889                 if (be16_to_cpu(wmt_evt_funcc->status) == 0x404)
2890                         status = BTMTK_WMT_ON_DONE;
2891                 else if (be16_to_cpu(wmt_evt_funcc->status) == 0x420)
2892                         status = BTMTK_WMT_ON_PROGRESS;
2893                 else
2894                         status = BTMTK_WMT_ON_UNDONE;
2895                 break;
2896         case BTMTK_WMT_PATCH_DWNLD:
2897                 if (wmt_evt->whdr.flag == 2)
2898                         status = BTMTK_WMT_PATCH_DONE;
2899                 else if (wmt_evt->whdr.flag == 1)
2900                         status = BTMTK_WMT_PATCH_PROGRESS;
2901                 else
2902                         status = BTMTK_WMT_PATCH_UNDONE;
2903                 break;
2904         }
2905
2906         if (wmt_params->status)
2907                 *wmt_params->status = status;
2908
2909 err_free_skb:
2910         kfree_skb(data->evt_skb);
2911         data->evt_skb = NULL;
2912 err_free_wc:
2913         kfree(wc);
2914         return err;
2915 }
2916
2917 static int btusb_mtk_func_query(struct hci_dev *hdev)
2918 {
2919         struct btmtk_hci_wmt_params wmt_params;
2920         int status, err;
2921         u8 param = 0;
2922
2923         /* Query whether the function is enabled */
2924         wmt_params.op = BTMTK_WMT_FUNC_CTRL;
2925         wmt_params.flag = 4;
2926         wmt_params.dlen = sizeof(param);
2927         wmt_params.data = &param;
2928         wmt_params.status = &status;
2929
2930         err = btusb_mtk_hci_wmt_sync(hdev, &wmt_params);
2931         if (err < 0) {
2932                 bt_dev_err(hdev, "Failed to query function status (%d)", err);
2933                 return err;
2934         }
2935
2936         return status;
2937 }
2938
2939 static int btusb_mtk_uhw_reg_write(struct btusb_data *data, u32 reg, u32 val)
2940 {
2941         struct hci_dev *hdev = data->hdev;
2942         int pipe, err;
2943         void *buf;
2944
2945         buf = kzalloc(4, GFP_KERNEL);
2946         if (!buf)
2947                 return -ENOMEM;
2948
2949         put_unaligned_le32(val, buf);
2950
2951         pipe = usb_sndctrlpipe(data->udev, 0);
2952         err = usb_control_msg(data->udev, pipe, 0x02,
2953                               0x5E,
2954                               reg >> 16, reg & 0xffff,
2955                               buf, 4, USB_CTRL_SET_TIMEOUT);
2956         if (err < 0) {
2957                 bt_dev_err(hdev, "Failed to write uhw reg(%d)", err);
2958                 goto err_free_buf;
2959         }
2960
2961 err_free_buf:
2962         kfree(buf);
2963
2964         return err;
2965 }
2966
2967 static int btusb_mtk_uhw_reg_read(struct btusb_data *data, u32 reg, u32 *val)
2968 {
2969         struct hci_dev *hdev = data->hdev;
2970         int pipe, err;
2971         void *buf;
2972
2973         buf = kzalloc(4, GFP_KERNEL);
2974         if (!buf)
2975                 return -ENOMEM;
2976
2977         pipe = usb_rcvctrlpipe(data->udev, 0);
2978         err = usb_control_msg(data->udev, pipe, 0x01,
2979                               0xDE,
2980                               reg >> 16, reg & 0xffff,
2981                               buf, 4, USB_CTRL_GET_TIMEOUT);
2982         if (err < 0) {
2983                 bt_dev_err(hdev, "Failed to read uhw reg(%d)", err);
2984                 goto err_free_buf;
2985         }
2986
2987         *val = get_unaligned_le32(buf);
2988         bt_dev_dbg(hdev, "reg=%x, value=0x%08x", reg, *val);
2989
2990 err_free_buf:
2991         kfree(buf);
2992
2993         return err;
2994 }
2995
2996 static int btusb_mtk_reg_read(struct btusb_data *data, u32 reg, u32 *val)
2997 {
2998         int pipe, err, size = sizeof(u32);
2999         void *buf;
3000
3001         buf = kzalloc(size, GFP_KERNEL);
3002         if (!buf)
3003                 return -ENOMEM;
3004
3005         pipe = usb_rcvctrlpipe(data->udev, 0);
3006         err = usb_control_msg(data->udev, pipe, 0x63,
3007                               USB_TYPE_VENDOR | USB_DIR_IN,
3008                               reg >> 16, reg & 0xffff,
3009                               buf, size, USB_CTRL_GET_TIMEOUT);
3010         if (err < 0)
3011                 goto err_free_buf;
3012
3013         *val = get_unaligned_le32(buf);
3014
3015 err_free_buf:
3016         kfree(buf);
3017
3018         return err;
3019 }
3020
3021 static int btusb_mtk_id_get(struct btusb_data *data, u32 reg, u32 *id)
3022 {
3023         return btusb_mtk_reg_read(data, reg, id);
3024 }
3025
3026 static u32 btusb_mtk_reset_done(struct hci_dev *hdev)
3027 {
3028         struct btusb_data *data = hci_get_drvdata(hdev);
3029         u32 val = 0;
3030
3031         btusb_mtk_uhw_reg_read(data, MTK_BT_MISC, &val);
3032
3033         return val & MTK_BT_RST_DONE;
3034 }
3035
3036 static int btusb_mtk_reset(struct hci_dev *hdev, void *rst_data)
3037 {
3038         struct btusb_data *data = hci_get_drvdata(hdev);
3039         struct btmediatek_data *mediatek;
3040         u32 val;
3041         int err;
3042
3043         /* It's MediaTek specific bluetooth reset mechanism via USB */
3044         if (test_and_set_bit(BTUSB_HW_RESET_ACTIVE, &data->flags)) {
3045                 bt_dev_err(hdev, "last reset failed? Not resetting again");
3046                 return -EBUSY;
3047         }
3048
3049         err = usb_autopm_get_interface(data->intf);
3050         if (err < 0)
3051                 return err;
3052
3053         btusb_stop_traffic(data);
3054         usb_kill_anchored_urbs(&data->tx_anchor);
3055         mediatek = hci_get_priv(hdev);
3056
3057         if (mediatek->dev_id == 0x7925) {
3058                 btusb_mtk_uhw_reg_read(data, MTK_BT_RESET_REG_CONNV3, &val);
3059                 val |= (1 << 5);
3060                 btusb_mtk_uhw_reg_write(data, MTK_BT_RESET_REG_CONNV3, val);
3061                 btusb_mtk_uhw_reg_read(data, MTK_BT_RESET_REG_CONNV3, &val);
3062                 val &= 0xFFFF00FF;
3063                 val |= (1 << 13);
3064                 btusb_mtk_uhw_reg_write(data, MTK_BT_RESET_REG_CONNV3, val);
3065                 btusb_mtk_uhw_reg_write(data, MTK_EP_RST_OPT, 0x00010001);
3066                 btusb_mtk_uhw_reg_read(data, MTK_BT_RESET_REG_CONNV3, &val);
3067                 val |= (1 << 0);
3068                 btusb_mtk_uhw_reg_write(data, MTK_BT_RESET_REG_CONNV3, val);
3069                 btusb_mtk_uhw_reg_write(data, MTK_UDMA_INT_STA_BT, 0x000000FF);
3070                 btusb_mtk_uhw_reg_read(data, MTK_UDMA_INT_STA_BT, &val);
3071                 btusb_mtk_uhw_reg_write(data, MTK_UDMA_INT_STA_BT1, 0x000000FF);
3072                 btusb_mtk_uhw_reg_read(data, MTK_UDMA_INT_STA_BT1, &val);
3073                 msleep(100);
3074         } else {
3075                 /* It's Device EndPoint Reset Option Register */
3076                 bt_dev_dbg(hdev, "Initiating reset mechanism via uhw");
3077                 btusb_mtk_uhw_reg_write(data, MTK_EP_RST_OPT, MTK_EP_RST_IN_OUT_OPT);
3078                 btusb_mtk_uhw_reg_read(data, MTK_BT_WDT_STATUS, &val);
3079
3080                 /* Reset the bluetooth chip via USB interface. */
3081                 btusb_mtk_uhw_reg_write(data, MTK_BT_SUBSYS_RST, 1);
3082                 btusb_mtk_uhw_reg_write(data, MTK_UDMA_INT_STA_BT, 0x000000FF);
3083                 btusb_mtk_uhw_reg_read(data, MTK_UDMA_INT_STA_BT, &val);
3084                 btusb_mtk_uhw_reg_write(data, MTK_UDMA_INT_STA_BT1, 0x000000FF);
3085                 btusb_mtk_uhw_reg_read(data, MTK_UDMA_INT_STA_BT1, &val);
3086                 /* MT7921 need to delay 20ms between toggle reset bit */
3087                 msleep(20);
3088                 btusb_mtk_uhw_reg_write(data, MTK_BT_SUBSYS_RST, 0);
3089                 btusb_mtk_uhw_reg_read(data, MTK_BT_SUBSYS_RST, &val);
3090         }
3091
3092         err = readx_poll_timeout(btusb_mtk_reset_done, hdev, val,
3093                                  val & MTK_BT_RST_DONE, 20000, 1000000);
3094         if (err < 0)
3095                 bt_dev_err(hdev, "Reset timeout");
3096
3097         btusb_mtk_id_get(data, 0x70010200, &val);
3098         if (!val)
3099                 bt_dev_err(hdev, "Can't get device id, subsys reset fail.");
3100
3101         usb_queue_reset_device(data->intf);
3102
3103         clear_bit(BTUSB_HW_RESET_ACTIVE, &data->flags);
3104
3105         return err;
3106 }
3107
3108 static int btusb_mtk_setup(struct hci_dev *hdev)
3109 {
3110         struct btusb_data *data = hci_get_drvdata(hdev);
3111         struct btmtk_hci_wmt_params wmt_params;
3112         ktime_t calltime, delta, rettime;
3113         struct btmtk_tci_sleep tci_sleep;
3114         unsigned long long duration;
3115         struct sk_buff *skb;
3116         const char *fwname;
3117         int err, status;
3118         u32 dev_id = 0;
3119         char fw_bin_name[64];
3120         u32 fw_version = 0, fw_flavor = 0;
3121         u8 param;
3122         struct btmediatek_data *mediatek;
3123
3124         calltime = ktime_get();
3125
3126         err = btusb_mtk_id_get(data, 0x80000008, &dev_id);
3127         if (err < 0) {
3128                 bt_dev_err(hdev, "Failed to get device id (%d)", err);
3129                 return err;
3130         }
3131
3132         if (!dev_id || dev_id != 0x7663) {
3133                 err = btusb_mtk_id_get(data, 0x70010200, &dev_id);
3134                 if (err < 0) {
3135                         bt_dev_err(hdev, "Failed to get device id (%d)", err);
3136                         return err;
3137                 }
3138                 err = btusb_mtk_id_get(data, 0x80021004, &fw_version);
3139                 if (err < 0) {
3140                         bt_dev_err(hdev, "Failed to get fw version (%d)", err);
3141                         return err;
3142                 }
3143                 err = btusb_mtk_id_get(data, 0x70010020, &fw_flavor);
3144                 if (err < 0) {
3145                         bt_dev_err(hdev, "Failed to get fw flavor (%d)", err);
3146                         return err;
3147                 }
3148                 fw_flavor = (fw_flavor & 0x00000080) >> 7;
3149         }
3150
3151         mediatek = hci_get_priv(hdev);
3152         mediatek->dev_id = dev_id;
3153         mediatek->reset_sync = btusb_mtk_reset;
3154
3155         err = btmtk_register_coredump(hdev, btusb_driver.name, fw_version);
3156         if (err < 0)
3157                 bt_dev_err(hdev, "Failed to register coredump (%d)", err);
3158
3159         switch (dev_id) {
3160         case 0x7663:
3161                 fwname = FIRMWARE_MT7663;
3162                 break;
3163         case 0x7668:
3164                 fwname = FIRMWARE_MT7668;
3165                 break;
3166         case 0x7922:
3167         case 0x7961:
3168         case 0x7925:
3169                 if (dev_id == 0x7925)
3170                         snprintf(fw_bin_name, sizeof(fw_bin_name),
3171                                  "mediatek/mt%04x/BT_RAM_CODE_MT%04x_1_%x_hdr.bin",
3172                                  dev_id & 0xffff, dev_id & 0xffff, (fw_version & 0xff) + 1);
3173                 else if (dev_id == 0x7961 && fw_flavor)
3174                         snprintf(fw_bin_name, sizeof(fw_bin_name),
3175                                  "mediatek/BT_RAM_CODE_MT%04x_1a_%x_hdr.bin",
3176                                  dev_id & 0xffff, (fw_version & 0xff) + 1);
3177                 else
3178                         snprintf(fw_bin_name, sizeof(fw_bin_name),
3179                                  "mediatek/BT_RAM_CODE_MT%04x_1_%x_hdr.bin",
3180                                  dev_id & 0xffff, (fw_version & 0xff) + 1);
3181
3182                 err = btmtk_setup_firmware_79xx(hdev, fw_bin_name,
3183                                                 btusb_mtk_hci_wmt_sync);
3184                 if (err < 0) {
3185                         bt_dev_err(hdev, "Failed to set up firmware (%d)", err);
3186                         return err;
3187                 }
3188
3189                 /* It's Device EndPoint Reset Option Register */
3190                 btusb_mtk_uhw_reg_write(data, MTK_EP_RST_OPT, MTK_EP_RST_IN_OUT_OPT);
3191
3192                 /* Enable Bluetooth protocol */
3193                 param = 1;
3194                 wmt_params.op = BTMTK_WMT_FUNC_CTRL;
3195                 wmt_params.flag = 0;
3196                 wmt_params.dlen = sizeof(param);
3197                 wmt_params.data = &param;
3198                 wmt_params.status = NULL;
3199
3200                 err = btusb_mtk_hci_wmt_sync(hdev, &wmt_params);
3201                 if (err < 0) {
3202                         bt_dev_err(hdev, "Failed to send wmt func ctrl (%d)", err);
3203                         return err;
3204                 }
3205
3206                 hci_set_msft_opcode(hdev, 0xFD30);
3207                 hci_set_aosp_capable(hdev);
3208                 goto done;
3209         default:
3210                 bt_dev_err(hdev, "Unsupported hardware variant (%08x)",
3211                            dev_id);
3212                 return -ENODEV;
3213         }
3214
3215         /* Query whether the firmware is already download */
3216         wmt_params.op = BTMTK_WMT_SEMAPHORE;
3217         wmt_params.flag = 1;
3218         wmt_params.dlen = 0;
3219         wmt_params.data = NULL;
3220         wmt_params.status = &status;
3221
3222         err = btusb_mtk_hci_wmt_sync(hdev, &wmt_params);
3223         if (err < 0) {
3224                 bt_dev_err(hdev, "Failed to query firmware status (%d)", err);
3225                 return err;
3226         }
3227
3228         if (status == BTMTK_WMT_PATCH_DONE) {
3229                 bt_dev_info(hdev, "firmware already downloaded");
3230                 goto ignore_setup_fw;
3231         }
3232
3233         /* Setup a firmware which the device definitely requires */
3234         err = btmtk_setup_firmware(hdev, fwname,
3235                                    btusb_mtk_hci_wmt_sync);
3236         if (err < 0)
3237                 return err;
3238
3239 ignore_setup_fw:
3240         err = readx_poll_timeout(btusb_mtk_func_query, hdev, status,
3241                                  status < 0 || status != BTMTK_WMT_ON_PROGRESS,
3242                                  2000, 5000000);
3243         /* -ETIMEDOUT happens */
3244         if (err < 0)
3245                 return err;
3246
3247         /* The other errors happen in btusb_mtk_func_query */
3248         if (status < 0)
3249                 return status;
3250
3251         if (status == BTMTK_WMT_ON_DONE) {
3252                 bt_dev_info(hdev, "function already on");
3253                 goto ignore_func_on;
3254         }
3255
3256         /* Enable Bluetooth protocol */
3257         param = 1;
3258         wmt_params.op = BTMTK_WMT_FUNC_CTRL;
3259         wmt_params.flag = 0;
3260         wmt_params.dlen = sizeof(param);
3261         wmt_params.data = &param;
3262         wmt_params.status = NULL;
3263
3264         err = btusb_mtk_hci_wmt_sync(hdev, &wmt_params);
3265         if (err < 0) {
3266                 bt_dev_err(hdev, "Failed to send wmt func ctrl (%d)", err);
3267                 return err;
3268         }
3269
3270 ignore_func_on:
3271         /* Apply the low power environment setup */
3272         tci_sleep.mode = 0x5;
3273         tci_sleep.duration = cpu_to_le16(0x640);
3274         tci_sleep.host_duration = cpu_to_le16(0x640);
3275         tci_sleep.host_wakeup_pin = 0;
3276         tci_sleep.time_compensation = 0;
3277
3278         skb = __hci_cmd_sync(hdev, 0xfc7a, sizeof(tci_sleep), &tci_sleep,
3279                              HCI_INIT_TIMEOUT);
3280         if (IS_ERR(skb)) {
3281                 err = PTR_ERR(skb);
3282                 bt_dev_err(hdev, "Failed to apply low power setting (%d)", err);
3283                 return err;
3284         }
3285         kfree_skb(skb);
3286
3287 done:
3288         rettime = ktime_get();
3289         delta = ktime_sub(rettime, calltime);
3290         duration = (unsigned long long)ktime_to_ns(delta) >> 10;
3291
3292         bt_dev_info(hdev, "Device setup in %llu usecs", duration);
3293
3294         return 0;
3295 }
3296
3297 static int btusb_mtk_shutdown(struct hci_dev *hdev)
3298 {
3299         struct btmtk_hci_wmt_params wmt_params;
3300         u8 param = 0;
3301         int err;
3302
3303         /* Disable the device */
3304         wmt_params.op = BTMTK_WMT_FUNC_CTRL;
3305         wmt_params.flag = 0;
3306         wmt_params.dlen = sizeof(param);
3307         wmt_params.data = &param;
3308         wmt_params.status = NULL;
3309
3310         err = btusb_mtk_hci_wmt_sync(hdev, &wmt_params);
3311         if (err < 0) {
3312                 bt_dev_err(hdev, "Failed to send wmt func ctrl (%d)", err);
3313                 return err;
3314         }
3315
3316         return 0;
3317 }
3318
3319 static int btusb_recv_acl_mtk(struct hci_dev *hdev, struct sk_buff *skb)
3320 {
3321         struct btusb_data *data = hci_get_drvdata(hdev);
3322         u16 handle = le16_to_cpu(hci_acl_hdr(skb)->handle);
3323
3324         switch (handle) {
3325         case 0xfc6f:            /* Firmware dump from device */
3326                 /* When the firmware hangs, the device can no longer
3327                  * suspend and thus disable auto-suspend.
3328                  */
3329                 usb_disable_autosuspend(data->udev);
3330
3331                 /* We need to forward the diagnostic packet to userspace daemon
3332                  * for backward compatibility, so we have to clone the packet
3333                  * extraly for the in-kernel coredump support.
3334                  */
3335                 if (IS_ENABLED(CONFIG_DEV_COREDUMP)) {
3336                         struct sk_buff *skb_cd = skb_clone(skb, GFP_ATOMIC);
3337
3338                         if (skb_cd)
3339                                 btmtk_process_coredump(hdev, skb_cd);
3340                 }
3341
3342                 fallthrough;
3343         case 0x05ff:            /* Firmware debug logging 1 */
3344         case 0x05fe:            /* Firmware debug logging 2 */
3345                 return hci_recv_diag(hdev, skb);
3346         }
3347
3348         return hci_recv_frame(hdev, skb);
3349 }
3350
3351 #ifdef CONFIG_PM
3352 /* Configure an out-of-band gpio as wake-up pin, if specified in device tree */
3353 static int marvell_config_oob_wake(struct hci_dev *hdev)
3354 {
3355         struct sk_buff *skb;
3356         struct btusb_data *data = hci_get_drvdata(hdev);
3357         struct device *dev = &data->udev->dev;
3358         u16 pin, gap, opcode;
3359         int ret;
3360         u8 cmd[5];
3361
3362         /* Move on if no wakeup pin specified */
3363         if (of_property_read_u16(dev->of_node, "marvell,wakeup-pin", &pin) ||
3364             of_property_read_u16(dev->of_node, "marvell,wakeup-gap-ms", &gap))
3365                 return 0;
3366
3367         /* Vendor specific command to configure a GPIO as wake-up pin */
3368         opcode = hci_opcode_pack(0x3F, 0x59);
3369         cmd[0] = opcode & 0xFF;
3370         cmd[1] = opcode >> 8;
3371         cmd[2] = 2; /* length of parameters that follow */
3372         cmd[3] = pin;
3373         cmd[4] = gap; /* time in ms, for which wakeup pin should be asserted */
3374
3375         skb = bt_skb_alloc(sizeof(cmd), GFP_KERNEL);
3376         if (!skb) {
3377                 bt_dev_err(hdev, "%s: No memory", __func__);
3378                 return -ENOMEM;
3379         }
3380
3381         skb_put_data(skb, cmd, sizeof(cmd));
3382         hci_skb_pkt_type(skb) = HCI_COMMAND_PKT;
3383
3384         ret = btusb_send_frame(hdev, skb);
3385         if (ret) {
3386                 bt_dev_err(hdev, "%s: configuration failed", __func__);
3387                 kfree_skb(skb);
3388                 return ret;
3389         }
3390
3391         return 0;
3392 }
3393 #endif
3394
3395 static int btusb_set_bdaddr_marvell(struct hci_dev *hdev,
3396                                     const bdaddr_t *bdaddr)
3397 {
3398         struct sk_buff *skb;
3399         u8 buf[8];
3400         long ret;
3401
3402         buf[0] = 0xfe;
3403         buf[1] = sizeof(bdaddr_t);
3404         memcpy(buf + 2, bdaddr, sizeof(bdaddr_t));
3405
3406         skb = __hci_cmd_sync(hdev, 0xfc22, sizeof(buf), buf, HCI_INIT_TIMEOUT);
3407         if (IS_ERR(skb)) {
3408                 ret = PTR_ERR(skb);
3409                 bt_dev_err(hdev, "changing Marvell device address failed (%ld)",
3410                            ret);
3411                 return ret;
3412         }
3413         kfree_skb(skb);
3414
3415         return 0;
3416 }
3417
3418 static int btusb_set_bdaddr_ath3012(struct hci_dev *hdev,
3419                                     const bdaddr_t *bdaddr)
3420 {
3421         struct sk_buff *skb;
3422         u8 buf[10];
3423         long ret;
3424
3425         buf[0] = 0x01;
3426         buf[1] = 0x01;
3427         buf[2] = 0x00;
3428         buf[3] = sizeof(bdaddr_t);
3429         memcpy(buf + 4, bdaddr, sizeof(bdaddr_t));
3430
3431         skb = __hci_cmd_sync(hdev, 0xfc0b, sizeof(buf), buf, HCI_INIT_TIMEOUT);
3432         if (IS_ERR(skb)) {
3433                 ret = PTR_ERR(skb);
3434                 bt_dev_err(hdev, "Change address command failed (%ld)", ret);
3435                 return ret;
3436         }
3437         kfree_skb(skb);
3438
3439         return 0;
3440 }
3441
3442 static int btusb_set_bdaddr_wcn6855(struct hci_dev *hdev,
3443                                 const bdaddr_t *bdaddr)
3444 {
3445         struct sk_buff *skb;
3446         u8 buf[6];
3447         long ret;
3448
3449         memcpy(buf, bdaddr, sizeof(bdaddr_t));
3450
3451         skb = __hci_cmd_sync_ev(hdev, 0xfc14, sizeof(buf), buf,
3452                                 HCI_EV_CMD_COMPLETE, HCI_INIT_TIMEOUT);
3453         if (IS_ERR(skb)) {
3454                 ret = PTR_ERR(skb);
3455                 bt_dev_err(hdev, "Change address command failed (%ld)", ret);
3456                 return ret;
3457         }
3458         kfree_skb(skb);
3459
3460         return 0;
3461 }
3462
3463 #define QCA_MEMDUMP_ACL_HANDLE 0x2EDD
3464 #define QCA_MEMDUMP_SIZE_MAX  0x100000
3465 #define QCA_MEMDUMP_VSE_CLASS 0x01
3466 #define QCA_MEMDUMP_MSG_TYPE 0x08
3467 #define QCA_MEMDUMP_PKT_SIZE 248
3468 #define QCA_LAST_SEQUENCE_NUM 0xffff
3469
3470 struct qca_dump_hdr {
3471         u8 vse_class;
3472         u8 msg_type;
3473         __le16 seqno;
3474         u8 reserved;
3475         union {
3476                 u8 data[0];
3477                 struct {
3478                         __le32 ram_dump_size;
3479                         u8 data0[0];
3480                 } __packed;
3481         };
3482 } __packed;
3483
3484
3485 static void btusb_dump_hdr_qca(struct hci_dev *hdev, struct sk_buff *skb)
3486 {
3487         char buf[128];
3488         struct btusb_data *btdata = hci_get_drvdata(hdev);
3489
3490         snprintf(buf, sizeof(buf), "Controller Name: 0x%x\n",
3491                         btdata->qca_dump.controller_id);
3492         skb_put_data(skb, buf, strlen(buf));
3493
3494         snprintf(buf, sizeof(buf), "Firmware Version: 0x%x\n",
3495                         btdata->qca_dump.fw_version);
3496         skb_put_data(skb, buf, strlen(buf));
3497
3498         snprintf(buf, sizeof(buf), "Driver: %s\nVendor: qca\n",
3499                         btusb_driver.name);
3500         skb_put_data(skb, buf, strlen(buf));
3501
3502         snprintf(buf, sizeof(buf), "VID: 0x%x\nPID:0x%x\n",
3503                         btdata->qca_dump.id_vendor, btdata->qca_dump.id_product);
3504         skb_put_data(skb, buf, strlen(buf));
3505
3506         snprintf(buf, sizeof(buf), "Lmp Subversion: 0x%x\n",
3507                         hdev->lmp_subver);
3508         skb_put_data(skb, buf, strlen(buf));
3509 }
3510
3511 static void btusb_coredump_qca(struct hci_dev *hdev)
3512 {
3513         int err;
3514         static const u8 param[] = { 0x26 };
3515
3516         err = __hci_cmd_send(hdev, 0xfc0c, 1, param);
3517         if (err < 0)
3518                 bt_dev_err(hdev, "%s: triggle crash failed (%d)", __func__, err);
3519 }
3520
3521 /*
3522  * ==0: not a dump pkt.
3523  * < 0: fails to handle a dump pkt
3524  * > 0: otherwise.
3525  */
3526 static int handle_dump_pkt_qca(struct hci_dev *hdev, struct sk_buff *skb)
3527 {
3528         int ret = 1;
3529         u8 pkt_type;
3530         u8 *sk_ptr;
3531         unsigned int sk_len;
3532         u16 seqno;
3533         u32 dump_size;
3534
3535         struct hci_event_hdr *event_hdr;
3536         struct hci_acl_hdr *acl_hdr;
3537         struct qca_dump_hdr *dump_hdr;
3538         struct btusb_data *btdata = hci_get_drvdata(hdev);
3539         struct usb_device *udev = btdata->udev;
3540
3541         pkt_type = hci_skb_pkt_type(skb);
3542         sk_ptr = skb->data;
3543         sk_len = skb->len;
3544
3545         if (pkt_type == HCI_ACLDATA_PKT) {
3546                 acl_hdr = hci_acl_hdr(skb);
3547                 if (le16_to_cpu(acl_hdr->handle) != QCA_MEMDUMP_ACL_HANDLE)
3548                         return 0;
3549                 sk_ptr += HCI_ACL_HDR_SIZE;
3550                 sk_len -= HCI_ACL_HDR_SIZE;
3551                 event_hdr = (struct hci_event_hdr *)sk_ptr;
3552         } else {
3553                 event_hdr = hci_event_hdr(skb);
3554         }
3555
3556         if ((event_hdr->evt != HCI_VENDOR_PKT)
3557                 || (event_hdr->plen != (sk_len - HCI_EVENT_HDR_SIZE)))
3558                 return 0;
3559
3560         sk_ptr += HCI_EVENT_HDR_SIZE;
3561         sk_len -= HCI_EVENT_HDR_SIZE;
3562
3563         dump_hdr = (struct qca_dump_hdr *)sk_ptr;
3564         if ((sk_len < offsetof(struct qca_dump_hdr, data))
3565                 || (dump_hdr->vse_class != QCA_MEMDUMP_VSE_CLASS)
3566             || (dump_hdr->msg_type != QCA_MEMDUMP_MSG_TYPE))
3567                 return 0;
3568
3569         /*it is dump pkt now*/
3570         seqno = le16_to_cpu(dump_hdr->seqno);
3571         if (seqno == 0) {
3572                 set_bit(BTUSB_HW_SSR_ACTIVE, &btdata->flags);
3573                 dump_size = le32_to_cpu(dump_hdr->ram_dump_size);
3574                 if (!dump_size || (dump_size > QCA_MEMDUMP_SIZE_MAX)) {
3575                         ret = -EILSEQ;
3576                         bt_dev_err(hdev, "Invalid memdump size(%u)",
3577                                    dump_size);
3578                         goto out;
3579                 }
3580
3581                 ret = hci_devcd_init(hdev, dump_size);
3582                 if (ret < 0) {
3583                         bt_dev_err(hdev, "memdump init error(%d)", ret);
3584                         goto out;
3585                 }
3586
3587                 btdata->qca_dump.ram_dump_size = dump_size;
3588                 btdata->qca_dump.ram_dump_seqno = 0;
3589                 sk_ptr += offsetof(struct qca_dump_hdr, data0);
3590                 sk_len -= offsetof(struct qca_dump_hdr, data0);
3591
3592                 usb_disable_autosuspend(udev);
3593                 bt_dev_info(hdev, "%s memdump size(%u)\n",
3594                             (pkt_type == HCI_ACLDATA_PKT) ? "ACL" : "event",
3595                             dump_size);
3596         } else {
3597                 sk_ptr += offsetof(struct qca_dump_hdr, data);
3598                 sk_len -= offsetof(struct qca_dump_hdr, data);
3599         }
3600
3601         if (!btdata->qca_dump.ram_dump_size) {
3602                 ret = -EINVAL;
3603                 bt_dev_err(hdev, "memdump is not active");
3604                 goto out;
3605         }
3606
3607         if ((seqno > btdata->qca_dump.ram_dump_seqno + 1) && (seqno != QCA_LAST_SEQUENCE_NUM)) {
3608                 dump_size = QCA_MEMDUMP_PKT_SIZE * (seqno - btdata->qca_dump.ram_dump_seqno - 1);
3609                 hci_devcd_append_pattern(hdev, 0x0, dump_size);
3610                 bt_dev_err(hdev,
3611                            "expected memdump seqno(%u) is not received(%u)\n",
3612                            btdata->qca_dump.ram_dump_seqno, seqno);
3613                 btdata->qca_dump.ram_dump_seqno = seqno;
3614                 kfree_skb(skb);
3615                 return ret;
3616         }
3617
3618         skb_pull(skb, skb->len - sk_len);
3619         hci_devcd_append(hdev, skb);
3620         btdata->qca_dump.ram_dump_seqno++;
3621         if (seqno == QCA_LAST_SEQUENCE_NUM) {
3622                 bt_dev_info(hdev,
3623                                 "memdump done: pkts(%u), total(%u)\n",
3624                                 btdata->qca_dump.ram_dump_seqno, btdata->qca_dump.ram_dump_size);
3625
3626                 hci_devcd_complete(hdev);
3627                 goto out;
3628         }
3629         return ret;
3630
3631 out:
3632         if (btdata->qca_dump.ram_dump_size)
3633                 usb_enable_autosuspend(udev);
3634         btdata->qca_dump.ram_dump_size = 0;
3635         btdata->qca_dump.ram_dump_seqno = 0;
3636         clear_bit(BTUSB_HW_SSR_ACTIVE, &btdata->flags);
3637
3638         if (ret < 0)
3639                 kfree_skb(skb);
3640         return ret;
3641 }
3642
3643 static int btusb_recv_acl_qca(struct hci_dev *hdev, struct sk_buff *skb)
3644 {
3645         if (handle_dump_pkt_qca(hdev, skb))
3646                 return 0;
3647         return hci_recv_frame(hdev, skb);
3648 }
3649
3650 static int btusb_recv_evt_qca(struct hci_dev *hdev, struct sk_buff *skb)
3651 {
3652         if (handle_dump_pkt_qca(hdev, skb))
3653                 return 0;
3654         return hci_recv_frame(hdev, skb);
3655 }
3656
3657
3658 #define QCA_DFU_PACKET_LEN      4096
3659
3660 #define QCA_GET_TARGET_VERSION  0x09
3661 #define QCA_CHECK_STATUS        0x05
3662 #define QCA_DFU_DOWNLOAD        0x01
3663
3664 #define QCA_SYSCFG_UPDATED      0x40
3665 #define QCA_PATCH_UPDATED       0x80
3666 #define QCA_DFU_TIMEOUT         3000
3667 #define QCA_FLAG_MULTI_NVM      0x80
3668 #define QCA_BT_RESET_WAIT_MS    100
3669
3670 #define WCN6855_2_0_RAM_VERSION_GF 0x400c1200
3671 #define WCN6855_2_1_RAM_VERSION_GF 0x400c1211
3672
3673 struct qca_version {
3674         __le32  rom_version;
3675         __le32  patch_version;
3676         __le32  ram_version;
3677         __u8    chip_id;
3678         __u8    platform_id;
3679         __le16  flag;
3680         __u8    reserved[4];
3681 } __packed;
3682
3683 struct qca_rampatch_version {
3684         __le16  rom_version_high;
3685         __le16  rom_version_low;
3686         __le16  patch_version;
3687 } __packed;
3688
3689 struct qca_device_info {
3690         u32     rom_version;
3691         u8      rampatch_hdr;   /* length of header in rampatch */
3692         u8      nvm_hdr;        /* length of header in NVM */
3693         u8      ver_offset;     /* offset of version structure in rampatch */
3694 };
3695
3696 static const struct qca_device_info qca_devices_table[] = {
3697         { 0x00000100, 20, 4,  8 }, /* Rome 1.0 */
3698         { 0x00000101, 20, 4,  8 }, /* Rome 1.1 */
3699         { 0x00000200, 28, 4, 16 }, /* Rome 2.0 */
3700         { 0x00000201, 28, 4, 16 }, /* Rome 2.1 */
3701         { 0x00000300, 28, 4, 16 }, /* Rome 3.0 */
3702         { 0x00000302, 28, 4, 16 }, /* Rome 3.2 */
3703         { 0x00130100, 40, 4, 16 }, /* WCN6855 1.0 */
3704         { 0x00130200, 40, 4, 16 }, /* WCN6855 2.0 */
3705         { 0x00130201, 40, 4, 16 }, /* WCN6855 2.1 */
3706         { 0x00190200, 40, 4, 16 }, /* WCN785x 2.0 */
3707 };
3708
3709 static int btusb_qca_send_vendor_req(struct usb_device *udev, u8 request,
3710                                      void *data, u16 size)
3711 {
3712         int pipe, err;
3713         u8 *buf;
3714
3715         buf = kmalloc(size, GFP_KERNEL);
3716         if (!buf)
3717                 return -ENOMEM;
3718
3719         /* Found some of USB hosts have IOT issues with ours so that we should
3720          * not wait until HCI layer is ready.
3721          */
3722         pipe = usb_rcvctrlpipe(udev, 0);
3723         err = usb_control_msg(udev, pipe, request, USB_TYPE_VENDOR | USB_DIR_IN,
3724                               0, 0, buf, size, USB_CTRL_GET_TIMEOUT);
3725         if (err < 0) {
3726                 dev_err(&udev->dev, "Failed to access otp area (%d)", err);
3727                 goto done;
3728         }
3729
3730         memcpy(data, buf, size);
3731
3732 done:
3733         kfree(buf);
3734
3735         return err;
3736 }
3737
3738 static int btusb_setup_qca_download_fw(struct hci_dev *hdev,
3739                                        const struct firmware *firmware,
3740                                        size_t hdr_size)
3741 {
3742         struct btusb_data *btdata = hci_get_drvdata(hdev);
3743         struct usb_device *udev = btdata->udev;
3744         size_t count, size, sent = 0;
3745         int pipe, len, err;
3746         u8 *buf;
3747
3748         buf = kmalloc(QCA_DFU_PACKET_LEN, GFP_KERNEL);
3749         if (!buf)
3750                 return -ENOMEM;
3751
3752         count = firmware->size;
3753
3754         size = min_t(size_t, count, hdr_size);
3755         memcpy(buf, firmware->data, size);
3756
3757         /* USB patches should go down to controller through USB path
3758          * because binary format fits to go down through USB channel.
3759          * USB control path is for patching headers and USB bulk is for
3760          * patch body.
3761          */
3762         pipe = usb_sndctrlpipe(udev, 0);
3763         err = usb_control_msg(udev, pipe, QCA_DFU_DOWNLOAD, USB_TYPE_VENDOR,
3764                               0, 0, buf, size, USB_CTRL_SET_TIMEOUT);
3765         if (err < 0) {
3766                 bt_dev_err(hdev, "Failed to send headers (%d)", err);
3767                 goto done;
3768         }
3769
3770         sent += size;
3771         count -= size;
3772
3773         /* ep2 need time to switch from function acl to function dfu,
3774          * so we add 20ms delay here.
3775          */
3776         msleep(20);
3777
3778         while (count) {
3779                 size = min_t(size_t, count, QCA_DFU_PACKET_LEN);
3780
3781                 memcpy(buf, firmware->data + sent, size);
3782
3783                 pipe = usb_sndbulkpipe(udev, 0x02);
3784                 err = usb_bulk_msg(udev, pipe, buf, size, &len,
3785                                    QCA_DFU_TIMEOUT);
3786                 if (err < 0) {
3787                         bt_dev_err(hdev, "Failed to send body at %zd of %zd (%d)",
3788                                    sent, firmware->size, err);
3789                         break;
3790                 }
3791
3792                 if (size != len) {
3793                         bt_dev_err(hdev, "Failed to get bulk buffer");
3794                         err = -EILSEQ;
3795                         break;
3796                 }
3797
3798                 sent  += size;
3799                 count -= size;
3800         }
3801
3802 done:
3803         kfree(buf);
3804         return err;
3805 }
3806
3807 static int btusb_setup_qca_load_rampatch(struct hci_dev *hdev,
3808                                          struct qca_version *ver,
3809                                          const struct qca_device_info *info)
3810 {
3811         struct qca_rampatch_version *rver;
3812         const struct firmware *fw;
3813         u32 ver_rom, ver_patch, rver_rom;
3814         u16 rver_rom_low, rver_rom_high, rver_patch;
3815         char fwname[64];
3816         int err;
3817
3818         ver_rom = le32_to_cpu(ver->rom_version);
3819         ver_patch = le32_to_cpu(ver->patch_version);
3820
3821         snprintf(fwname, sizeof(fwname), "qca/rampatch_usb_%08x.bin", ver_rom);
3822
3823         err = request_firmware(&fw, fwname, &hdev->dev);
3824         if (err) {
3825                 bt_dev_err(hdev, "failed to request rampatch file: %s (%d)",
3826                            fwname, err);
3827                 return err;
3828         }
3829
3830         bt_dev_info(hdev, "using rampatch file: %s", fwname);
3831
3832         rver = (struct qca_rampatch_version *)(fw->data + info->ver_offset);
3833         rver_rom_low = le16_to_cpu(rver->rom_version_low);
3834         rver_patch = le16_to_cpu(rver->patch_version);
3835
3836         if (ver_rom & ~0xffffU) {
3837                 rver_rom_high = le16_to_cpu(rver->rom_version_high);
3838                 rver_rom = rver_rom_high << 16 | rver_rom_low;
3839         } else {
3840                 rver_rom = rver_rom_low;
3841         }
3842
3843         bt_dev_info(hdev, "QCA: patch rome 0x%x build 0x%x, "
3844                     "firmware rome 0x%x build 0x%x",
3845                     rver_rom, rver_patch, ver_rom, ver_patch);
3846
3847         if (rver_rom != ver_rom || rver_patch <= ver_patch) {
3848                 bt_dev_err(hdev, "rampatch file version did not match with firmware");
3849                 err = -EINVAL;
3850                 goto done;
3851         }
3852
3853         err = btusb_setup_qca_download_fw(hdev, fw, info->rampatch_hdr);
3854
3855 done:
3856         release_firmware(fw);
3857
3858         return err;
3859 }
3860
3861 static void btusb_generate_qca_nvm_name(char *fwname, size_t max_size,
3862                                         const struct qca_version *ver)
3863 {
3864         u32 rom_version = le32_to_cpu(ver->rom_version);
3865         u16 flag = le16_to_cpu(ver->flag);
3866
3867         if (((flag >> 8) & 0xff) == QCA_FLAG_MULTI_NVM) {
3868                 /* The board_id should be split into two bytes
3869                  * The 1st byte is chip ID, and the 2nd byte is platform ID
3870                  * For example, board ID 0x010A, 0x01 is platform ID. 0x0A is chip ID
3871                  * we have several platforms, and platform IDs are continuously added
3872                  * Platform ID:
3873                  * 0x00 is for Mobile
3874                  * 0x01 is for X86
3875                  * 0x02 is for Automotive
3876                  * 0x03 is for Consumer electronic
3877                  */
3878                 u16 board_id = (ver->chip_id << 8) + ver->platform_id;
3879                 const char *variant;
3880
3881                 switch (le32_to_cpu(ver->ram_version)) {
3882                 case WCN6855_2_0_RAM_VERSION_GF:
3883                 case WCN6855_2_1_RAM_VERSION_GF:
3884                         variant = "_gf";
3885                         break;
3886                 default:
3887                         variant = "";
3888                         break;
3889                 }
3890
3891                 if (board_id == 0) {
3892                         snprintf(fwname, max_size, "qca/nvm_usb_%08x%s.bin",
3893                                 rom_version, variant);
3894                 } else {
3895                         snprintf(fwname, max_size, "qca/nvm_usb_%08x%s_%04x.bin",
3896                                 rom_version, variant, board_id);
3897                 }
3898         } else {
3899                 snprintf(fwname, max_size, "qca/nvm_usb_%08x.bin",
3900                         rom_version);
3901         }
3902
3903 }
3904
3905 static int btusb_setup_qca_load_nvm(struct hci_dev *hdev,
3906                                     struct qca_version *ver,
3907                                     const struct qca_device_info *info)
3908 {
3909         const struct firmware *fw;
3910         char fwname[64];
3911         int err;
3912
3913         btusb_generate_qca_nvm_name(fwname, sizeof(fwname), ver);
3914
3915         err = request_firmware(&fw, fwname, &hdev->dev);
3916         if (err) {
3917                 bt_dev_err(hdev, "failed to request NVM file: %s (%d)",
3918                            fwname, err);
3919                 return err;
3920         }
3921
3922         bt_dev_info(hdev, "using NVM file: %s", fwname);
3923
3924         err = btusb_setup_qca_download_fw(hdev, fw, info->nvm_hdr);
3925
3926         release_firmware(fw);
3927
3928         return err;
3929 }
3930
3931 /* identify the ROM version and check whether patches are needed */
3932 static bool btusb_qca_need_patch(struct usb_device *udev)
3933 {
3934         struct qca_version ver;
3935
3936         if (btusb_qca_send_vendor_req(udev, QCA_GET_TARGET_VERSION, &ver,
3937                                       sizeof(ver)) < 0)
3938                 return false;
3939         /* only low ROM versions need patches */
3940         return !(le32_to_cpu(ver.rom_version) & ~0xffffU);
3941 }
3942
3943 static int btusb_setup_qca(struct hci_dev *hdev)
3944 {
3945         struct btusb_data *btdata = hci_get_drvdata(hdev);
3946         struct usb_device *udev = btdata->udev;
3947         const struct qca_device_info *info = NULL;
3948         struct qca_version ver;
3949         u32 ver_rom;
3950         u8 status;
3951         int i, err;
3952
3953         err = btusb_qca_send_vendor_req(udev, QCA_GET_TARGET_VERSION, &ver,
3954                                         sizeof(ver));
3955         if (err < 0)
3956                 return err;
3957
3958         ver_rom = le32_to_cpu(ver.rom_version);
3959
3960         for (i = 0; i < ARRAY_SIZE(qca_devices_table); i++) {
3961                 if (ver_rom == qca_devices_table[i].rom_version)
3962                         info = &qca_devices_table[i];
3963         }
3964         if (!info) {
3965                 /* If the rom_version is not matched in the qca_devices_table
3966                  * and the high ROM version is not zero, we assume this chip no
3967                  * need to load the rampatch and nvm.
3968                  */
3969                 if (ver_rom & ~0xffffU)
3970                         return 0;
3971
3972                 bt_dev_err(hdev, "don't support firmware rome 0x%x", ver_rom);
3973                 return -ENODEV;
3974         }
3975
3976         err = btusb_qca_send_vendor_req(udev, QCA_CHECK_STATUS, &status,
3977                                         sizeof(status));
3978         if (err < 0)
3979                 return err;
3980
3981         if (!(status & QCA_PATCH_UPDATED)) {
3982                 err = btusb_setup_qca_load_rampatch(hdev, &ver, info);
3983                 if (err < 0)
3984                         return err;
3985         }
3986
3987         err = btusb_qca_send_vendor_req(udev, QCA_GET_TARGET_VERSION, &ver,
3988                                         sizeof(ver));
3989         if (err < 0)
3990                 return err;
3991
3992         btdata->qca_dump.fw_version = le32_to_cpu(ver.patch_version);
3993         btdata->qca_dump.controller_id = le32_to_cpu(ver.rom_version);
3994
3995         if (!(status & QCA_SYSCFG_UPDATED)) {
3996                 err = btusb_setup_qca_load_nvm(hdev, &ver, info);
3997                 if (err < 0)
3998                         return err;
3999
4000                 /* WCN6855 2.1 and later will reset to apply firmware downloaded here, so
4001                  * wait ~100ms for reset Done then go ahead, otherwise, it maybe
4002                  * cause potential enable failure.
4003                  */
4004                 if (info->rom_version >= 0x00130201)
4005                         msleep(QCA_BT_RESET_WAIT_MS);
4006         }
4007
4008         /* Mark HCI_OP_ENHANCED_SETUP_SYNC_CONN as broken as it doesn't seem to
4009          * work with the likes of HSP/HFP mSBC.
4010          */
4011         set_bit(HCI_QUIRK_BROKEN_ENHANCED_SETUP_SYNC_CONN, &hdev->quirks);
4012
4013         return 0;
4014 }
4015
4016 static inline int __set_diag_interface(struct hci_dev *hdev)
4017 {
4018         struct btusb_data *data = hci_get_drvdata(hdev);
4019         struct usb_interface *intf = data->diag;
4020         int i;
4021
4022         if (!data->diag)
4023                 return -ENODEV;
4024
4025         data->diag_tx_ep = NULL;
4026         data->diag_rx_ep = NULL;
4027
4028         for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
4029                 struct usb_endpoint_descriptor *ep_desc;
4030
4031                 ep_desc = &intf->cur_altsetting->endpoint[i].desc;
4032
4033                 if (!data->diag_tx_ep && usb_endpoint_is_bulk_out(ep_desc)) {
4034                         data->diag_tx_ep = ep_desc;
4035                         continue;
4036                 }
4037
4038                 if (!data->diag_rx_ep && usb_endpoint_is_bulk_in(ep_desc)) {
4039                         data->diag_rx_ep = ep_desc;
4040                         continue;
4041                 }
4042         }
4043
4044         if (!data->diag_tx_ep || !data->diag_rx_ep) {
4045                 bt_dev_err(hdev, "invalid diagnostic descriptors");
4046                 return -ENODEV;
4047         }
4048
4049         return 0;
4050 }
4051
4052 static struct urb *alloc_diag_urb(struct hci_dev *hdev, bool enable)
4053 {
4054         struct btusb_data *data = hci_get_drvdata(hdev);
4055         struct sk_buff *skb;
4056         struct urb *urb;
4057         unsigned int pipe;
4058
4059         if (!data->diag_tx_ep)
4060                 return ERR_PTR(-ENODEV);
4061
4062         urb = usb_alloc_urb(0, GFP_KERNEL);
4063         if (!urb)
4064                 return ERR_PTR(-ENOMEM);
4065
4066         skb = bt_skb_alloc(2, GFP_KERNEL);
4067         if (!skb) {
4068                 usb_free_urb(urb);
4069                 return ERR_PTR(-ENOMEM);
4070         }
4071
4072         skb_put_u8(skb, 0xf0);
4073         skb_put_u8(skb, enable);
4074
4075         pipe = usb_sndbulkpipe(data->udev, data->diag_tx_ep->bEndpointAddress);
4076
4077         usb_fill_bulk_urb(urb, data->udev, pipe,
4078                           skb->data, skb->len, btusb_tx_complete, skb);
4079
4080         skb->dev = (void *)hdev;
4081
4082         return urb;
4083 }
4084
4085 static int btusb_bcm_set_diag(struct hci_dev *hdev, bool enable)
4086 {
4087         struct btusb_data *data = hci_get_drvdata(hdev);
4088         struct urb *urb;
4089
4090         if (!data->diag)
4091                 return -ENODEV;
4092
4093         if (!test_bit(HCI_RUNNING, &hdev->flags))
4094                 return -ENETDOWN;
4095
4096         urb = alloc_diag_urb(hdev, enable);
4097         if (IS_ERR(urb))
4098                 return PTR_ERR(urb);
4099
4100         return submit_or_queue_tx_urb(hdev, urb);
4101 }
4102
4103 #ifdef CONFIG_PM
4104 static irqreturn_t btusb_oob_wake_handler(int irq, void *priv)
4105 {
4106         struct btusb_data *data = priv;
4107
4108         pm_wakeup_event(&data->udev->dev, 0);
4109         pm_system_wakeup();
4110
4111         /* Disable only if not already disabled (keep it balanced) */
4112         if (test_and_clear_bit(BTUSB_OOB_WAKE_ENABLED, &data->flags)) {
4113                 disable_irq_nosync(irq);
4114                 disable_irq_wake(irq);
4115         }
4116         return IRQ_HANDLED;
4117 }
4118
4119 static const struct of_device_id btusb_match_table[] = {
4120         { .compatible = "usb1286,204e" },
4121         { .compatible = "usbcf3,e300" }, /* QCA6174A */
4122         { .compatible = "usb4ca,301a" }, /* QCA6174A (Lite-On) */
4123         { }
4124 };
4125 MODULE_DEVICE_TABLE(of, btusb_match_table);
4126
4127 /* Use an oob wakeup pin? */
4128 static int btusb_config_oob_wake(struct hci_dev *hdev)
4129 {
4130         struct btusb_data *data = hci_get_drvdata(hdev);
4131         struct device *dev = &data->udev->dev;
4132         int irq, ret;
4133
4134         clear_bit(BTUSB_OOB_WAKE_ENABLED, &data->flags);
4135
4136         if (!of_match_device(btusb_match_table, dev))
4137                 return 0;
4138
4139         /* Move on if no IRQ specified */
4140         irq = of_irq_get_byname(dev->of_node, "wakeup");
4141         if (irq <= 0) {
4142                 bt_dev_dbg(hdev, "%s: no OOB Wakeup IRQ in DT", __func__);
4143                 return 0;
4144         }
4145
4146         irq_set_status_flags(irq, IRQ_NOAUTOEN);
4147         ret = devm_request_irq(&hdev->dev, irq, btusb_oob_wake_handler,
4148                                0, "OOB Wake-on-BT", data);
4149         if (ret) {
4150                 bt_dev_err(hdev, "%s: IRQ request failed", __func__);
4151                 return ret;
4152         }
4153
4154         ret = device_init_wakeup(dev, true);
4155         if (ret) {
4156                 bt_dev_err(hdev, "%s: failed to init_wakeup", __func__);
4157                 return ret;
4158         }
4159
4160         data->oob_wake_irq = irq;
4161         bt_dev_info(hdev, "OOB Wake-on-BT configured at IRQ %u", irq);
4162         return 0;
4163 }
4164 #endif
4165
4166 static void btusb_check_needs_reset_resume(struct usb_interface *intf)
4167 {
4168         if (dmi_check_system(btusb_needs_reset_resume_table))
4169                 interface_to_usbdev(intf)->quirks |= USB_QUIRK_RESET_RESUME;
4170 }
4171
4172 static bool btusb_wakeup(struct hci_dev *hdev)
4173 {
4174         struct btusb_data *data = hci_get_drvdata(hdev);
4175
4176         return device_may_wakeup(&data->udev->dev);
4177 }
4178
4179 static int btusb_shutdown_qca(struct hci_dev *hdev)
4180 {
4181         struct sk_buff *skb;
4182
4183         skb = __hci_cmd_sync(hdev, HCI_OP_RESET, 0, NULL, HCI_INIT_TIMEOUT);
4184         if (IS_ERR(skb)) {
4185                 bt_dev_err(hdev, "HCI reset during shutdown failed");
4186                 return PTR_ERR(skb);
4187         }
4188         kfree_skb(skb);
4189
4190         return 0;
4191 }
4192
4193 static ssize_t force_poll_sync_read(struct file *file, char __user *user_buf,
4194                                     size_t count, loff_t *ppos)
4195 {
4196         struct btusb_data *data = file->private_data;
4197         char buf[3];
4198
4199         buf[0] = data->poll_sync ? 'Y' : 'N';
4200         buf[1] = '\n';
4201         buf[2] = '\0';
4202         return simple_read_from_buffer(user_buf, count, ppos, buf, 2);
4203 }
4204
4205 static ssize_t force_poll_sync_write(struct file *file,
4206                                      const char __user *user_buf,
4207                                      size_t count, loff_t *ppos)
4208 {
4209         struct btusb_data *data = file->private_data;
4210         bool enable;
4211         int err;
4212
4213         err = kstrtobool_from_user(user_buf, count, &enable);
4214         if (err)
4215                 return err;
4216
4217         /* Only allow changes while the adapter is down */
4218         if (test_bit(HCI_UP, &data->hdev->flags))
4219                 return -EPERM;
4220
4221         if (data->poll_sync == enable)
4222                 return -EALREADY;
4223
4224         data->poll_sync = enable;
4225
4226         return count;
4227 }
4228
4229 static const struct file_operations force_poll_sync_fops = {
4230         .open           = simple_open,
4231         .read           = force_poll_sync_read,
4232         .write          = force_poll_sync_write,
4233         .llseek         = default_llseek,
4234 };
4235
4236 static int btusb_probe(struct usb_interface *intf,
4237                        const struct usb_device_id *id)
4238 {
4239         struct usb_endpoint_descriptor *ep_desc;
4240         struct gpio_desc *reset_gpio;
4241         struct btusb_data *data;
4242         struct hci_dev *hdev;
4243         unsigned ifnum_base;
4244         int i, err, priv_size;
4245
4246         BT_DBG("intf %p id %p", intf, id);
4247
4248         if ((id->driver_info & BTUSB_IFNUM_2) &&
4249             (intf->cur_altsetting->desc.bInterfaceNumber != 0) &&
4250             (intf->cur_altsetting->desc.bInterfaceNumber != 2))
4251                 return -ENODEV;
4252
4253         ifnum_base = intf->cur_altsetting->desc.bInterfaceNumber;
4254
4255         if (!id->driver_info) {
4256                 const struct usb_device_id *match;
4257
4258                 match = usb_match_id(intf, quirks_table);
4259                 if (match)
4260                         id = match;
4261         }
4262
4263         if (id->driver_info == BTUSB_IGNORE)
4264                 return -ENODEV;
4265
4266         if (id->driver_info & BTUSB_ATH3012) {
4267                 struct usb_device *udev = interface_to_usbdev(intf);
4268
4269                 /* Old firmware would otherwise let ath3k driver load
4270                  * patch and sysconfig files
4271                  */
4272                 if (le16_to_cpu(udev->descriptor.bcdDevice) <= 0x0001 &&
4273                     !btusb_qca_need_patch(udev))
4274                         return -ENODEV;
4275         }
4276
4277         data = devm_kzalloc(&intf->dev, sizeof(*data), GFP_KERNEL);
4278         if (!data)
4279                 return -ENOMEM;
4280
4281         for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
4282                 ep_desc = &intf->cur_altsetting->endpoint[i].desc;
4283
4284                 if (!data->intr_ep && usb_endpoint_is_int_in(ep_desc)) {
4285                         data->intr_ep = ep_desc;
4286                         continue;
4287                 }
4288
4289                 if (!data->bulk_tx_ep && usb_endpoint_is_bulk_out(ep_desc)) {
4290                         data->bulk_tx_ep = ep_desc;
4291                         continue;
4292                 }
4293
4294                 if (!data->bulk_rx_ep && usb_endpoint_is_bulk_in(ep_desc)) {
4295                         data->bulk_rx_ep = ep_desc;
4296                         continue;
4297                 }
4298         }
4299
4300         if (!data->intr_ep || !data->bulk_tx_ep || !data->bulk_rx_ep)
4301                 return -ENODEV;
4302
4303         if (id->driver_info & BTUSB_AMP) {
4304                 data->cmdreq_type = USB_TYPE_CLASS | 0x01;
4305                 data->cmdreq = 0x2b;
4306         } else {
4307                 data->cmdreq_type = USB_TYPE_CLASS;
4308                 data->cmdreq = 0x00;
4309         }
4310
4311         data->udev = interface_to_usbdev(intf);
4312         data->intf = intf;
4313
4314         INIT_WORK(&data->work, btusb_work);
4315         INIT_WORK(&data->waker, btusb_waker);
4316         INIT_DELAYED_WORK(&data->rx_work, btusb_rx_work);
4317
4318         skb_queue_head_init(&data->acl_q);
4319
4320         init_usb_anchor(&data->deferred);
4321         init_usb_anchor(&data->tx_anchor);
4322         spin_lock_init(&data->txlock);
4323
4324         init_usb_anchor(&data->intr_anchor);
4325         init_usb_anchor(&data->bulk_anchor);
4326         init_usb_anchor(&data->isoc_anchor);
4327         init_usb_anchor(&data->diag_anchor);
4328         init_usb_anchor(&data->ctrl_anchor);
4329         spin_lock_init(&data->rxlock);
4330
4331         priv_size = 0;
4332
4333         data->recv_event = hci_recv_frame;
4334         data->recv_bulk = btusb_recv_bulk;
4335
4336         if (id->driver_info & BTUSB_INTEL_COMBINED) {
4337                 /* Allocate extra space for Intel device */
4338                 priv_size += sizeof(struct btintel_data);
4339
4340                 /* Override the rx handlers */
4341                 data->recv_event = btintel_recv_event;
4342                 data->recv_bulk = btusb_recv_bulk_intel;
4343         } else if (id->driver_info & BTUSB_REALTEK) {
4344                 /* Allocate extra space for Realtek device */
4345                 priv_size += sizeof(struct btrealtek_data);
4346
4347                 data->recv_event = btusb_recv_event_realtek;
4348         } else if (id->driver_info & BTUSB_MEDIATEK) {
4349                 /* Allocate extra space for Mediatek device */
4350                 priv_size += sizeof(struct btmediatek_data);
4351         }
4352
4353         data->recv_acl = hci_recv_frame;
4354
4355         hdev = hci_alloc_dev_priv(priv_size);
4356         if (!hdev)
4357                 return -ENOMEM;
4358
4359         hdev->bus = HCI_USB;
4360         hci_set_drvdata(hdev, data);
4361
4362         data->hdev = hdev;
4363
4364         SET_HCIDEV_DEV(hdev, &intf->dev);
4365
4366         reset_gpio = gpiod_get_optional(&data->udev->dev, "reset",
4367                                         GPIOD_OUT_LOW);
4368         if (IS_ERR(reset_gpio)) {
4369                 err = PTR_ERR(reset_gpio);
4370                 goto out_free_dev;
4371         } else if (reset_gpio) {
4372                 data->reset_gpio = reset_gpio;
4373         }
4374
4375         hdev->open   = btusb_open;
4376         hdev->close  = btusb_close;
4377         hdev->flush  = btusb_flush;
4378         hdev->send   = btusb_send_frame;
4379         hdev->notify = btusb_notify;
4380         hdev->wakeup = btusb_wakeup;
4381
4382 #ifdef CONFIG_PM
4383         err = btusb_config_oob_wake(hdev);
4384         if (err)
4385                 goto out_free_dev;
4386
4387         /* Marvell devices may need a specific chip configuration */
4388         if (id->driver_info & BTUSB_MARVELL && data->oob_wake_irq) {
4389                 err = marvell_config_oob_wake(hdev);
4390                 if (err)
4391                         goto out_free_dev;
4392         }
4393 #endif
4394         if (id->driver_info & BTUSB_CW6622)
4395                 set_bit(HCI_QUIRK_BROKEN_STORED_LINK_KEY, &hdev->quirks);
4396
4397         if (id->driver_info & BTUSB_BCM2045)
4398                 set_bit(HCI_QUIRK_BROKEN_STORED_LINK_KEY, &hdev->quirks);
4399
4400         if (id->driver_info & BTUSB_BCM92035)
4401                 hdev->setup = btusb_setup_bcm92035;
4402
4403         if (IS_ENABLED(CONFIG_BT_HCIBTUSB_BCM) &&
4404             (id->driver_info & BTUSB_BCM_PATCHRAM)) {
4405                 hdev->manufacturer = 15;
4406                 hdev->setup = btbcm_setup_patchram;
4407                 hdev->set_diag = btusb_bcm_set_diag;
4408                 hdev->set_bdaddr = btbcm_set_bdaddr;
4409
4410                 /* Broadcom LM_DIAG Interface numbers are hardcoded */
4411                 data->diag = usb_ifnum_to_if(data->udev, ifnum_base + 2);
4412         }
4413
4414         if (IS_ENABLED(CONFIG_BT_HCIBTUSB_BCM) &&
4415             (id->driver_info & BTUSB_BCM_APPLE)) {
4416                 hdev->manufacturer = 15;
4417                 hdev->setup = btbcm_setup_apple;
4418                 hdev->set_diag = btusb_bcm_set_diag;
4419
4420                 /* Broadcom LM_DIAG Interface numbers are hardcoded */
4421                 data->diag = usb_ifnum_to_if(data->udev, ifnum_base + 2);
4422         }
4423
4424         /* Combined Intel Device setup to support multiple setup routine */
4425         if (id->driver_info & BTUSB_INTEL_COMBINED) {
4426                 err = btintel_configure_setup(hdev, btusb_driver.name);
4427                 if (err)
4428                         goto out_free_dev;
4429
4430                 /* Transport specific configuration */
4431                 hdev->send = btusb_send_frame_intel;
4432                 hdev->cmd_timeout = btusb_intel_cmd_timeout;
4433
4434                 if (id->driver_info & BTUSB_INTEL_NO_WBS_SUPPORT)
4435                         btintel_set_flag(hdev, INTEL_ROM_LEGACY_NO_WBS_SUPPORT);
4436
4437                 if (id->driver_info & BTUSB_INTEL_BROKEN_INITIAL_NCMD)
4438                         btintel_set_flag(hdev, INTEL_BROKEN_INITIAL_NCMD);
4439
4440                 if (id->driver_info & BTUSB_INTEL_BROKEN_SHUTDOWN_LED)
4441                         btintel_set_flag(hdev, INTEL_BROKEN_SHUTDOWN_LED);
4442         }
4443
4444         if (id->driver_info & BTUSB_MARVELL)
4445                 hdev->set_bdaddr = btusb_set_bdaddr_marvell;
4446
4447         if (IS_ENABLED(CONFIG_BT_HCIBTUSB_MTK) &&
4448             (id->driver_info & BTUSB_MEDIATEK)) {
4449                 hdev->setup = btusb_mtk_setup;
4450                 hdev->shutdown = btusb_mtk_shutdown;
4451                 hdev->manufacturer = 70;
4452                 hdev->cmd_timeout = btmtk_reset_sync;
4453                 hdev->set_bdaddr = btmtk_set_bdaddr;
4454                 set_bit(HCI_QUIRK_BROKEN_ENHANCED_SETUP_SYNC_CONN, &hdev->quirks);
4455                 set_bit(HCI_QUIRK_NON_PERSISTENT_SETUP, &hdev->quirks);
4456                 data->recv_acl = btusb_recv_acl_mtk;
4457         }
4458
4459         if (id->driver_info & BTUSB_SWAVE) {
4460                 set_bit(HCI_QUIRK_FIXUP_INQUIRY_MODE, &hdev->quirks);
4461                 set_bit(HCI_QUIRK_BROKEN_LOCAL_COMMANDS, &hdev->quirks);
4462         }
4463
4464         if (id->driver_info & BTUSB_INTEL_BOOT) {
4465                 hdev->manufacturer = 2;
4466                 set_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks);
4467         }
4468
4469         if (id->driver_info & BTUSB_ATH3012) {
4470                 data->setup_on_usb = btusb_setup_qca;
4471                 hdev->set_bdaddr = btusb_set_bdaddr_ath3012;
4472                 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks);
4473                 set_bit(HCI_QUIRK_STRICT_DUPLICATE_FILTER, &hdev->quirks);
4474         }
4475
4476         if (id->driver_info & BTUSB_QCA_ROME) {
4477                 data->setup_on_usb = btusb_setup_qca;
4478                 hdev->shutdown = btusb_shutdown_qca;
4479                 hdev->set_bdaddr = btusb_set_bdaddr_ath3012;
4480                 hdev->cmd_timeout = btusb_qca_cmd_timeout;
4481                 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks);
4482                 btusb_check_needs_reset_resume(intf);
4483         }
4484
4485         if (id->driver_info & BTUSB_QCA_WCN6855) {
4486                 data->qca_dump.id_vendor = id->idVendor;
4487                 data->qca_dump.id_product = id->idProduct;
4488                 data->recv_event = btusb_recv_evt_qca;
4489                 data->recv_acl = btusb_recv_acl_qca;
4490                 hci_devcd_register(hdev, btusb_coredump_qca, btusb_dump_hdr_qca, NULL);
4491                 data->setup_on_usb = btusb_setup_qca;
4492                 hdev->shutdown = btusb_shutdown_qca;
4493                 hdev->set_bdaddr = btusb_set_bdaddr_wcn6855;
4494                 hdev->cmd_timeout = btusb_qca_cmd_timeout;
4495                 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks);
4496                 hci_set_msft_opcode(hdev, 0xFD70);
4497         }
4498
4499         if (id->driver_info & BTUSB_AMP) {
4500                 /* AMP controllers do not support SCO packets */
4501                 data->isoc = NULL;
4502         } else {
4503                 /* Interface orders are hardcoded in the specification */
4504                 data->isoc = usb_ifnum_to_if(data->udev, ifnum_base + 1);
4505                 data->isoc_ifnum = ifnum_base + 1;
4506         }
4507
4508         if (IS_ENABLED(CONFIG_BT_HCIBTUSB_RTL) &&
4509             (id->driver_info & BTUSB_REALTEK)) {
4510                 btrtl_set_driver_name(hdev, btusb_driver.name);
4511                 hdev->setup = btusb_setup_realtek;
4512                 hdev->shutdown = btrtl_shutdown_realtek;
4513                 hdev->cmd_timeout = btusb_rtl_cmd_timeout;
4514                 hdev->hw_error = btusb_rtl_hw_error;
4515
4516                 /* Realtek devices need to set remote wakeup on auto-suspend */
4517                 set_bit(BTUSB_WAKEUP_AUTOSUSPEND, &data->flags);
4518                 set_bit(BTUSB_USE_ALT3_FOR_WBS, &data->flags);
4519         }
4520
4521         if (id->driver_info & BTUSB_ACTIONS_SEMI) {
4522                 /* Support is advertised, but not implemented */
4523                 set_bit(HCI_QUIRK_BROKEN_ERR_DATA_REPORTING, &hdev->quirks);
4524                 set_bit(HCI_QUIRK_BROKEN_READ_TRANSMIT_POWER, &hdev->quirks);
4525                 set_bit(HCI_QUIRK_BROKEN_SET_RPA_TIMEOUT, &hdev->quirks);
4526                 set_bit(HCI_QUIRK_BROKEN_EXT_SCAN, &hdev->quirks);
4527                 set_bit(HCI_QUIRK_BROKEN_READ_ENC_KEY_SIZE, &hdev->quirks);
4528         }
4529
4530         if (!reset)
4531                 set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
4532
4533         if (force_scofix || id->driver_info & BTUSB_WRONG_SCO_MTU) {
4534                 if (!disable_scofix)
4535                         set_bit(HCI_QUIRK_FIXUP_BUFFER_SIZE, &hdev->quirks);
4536         }
4537
4538         if (id->driver_info & BTUSB_BROKEN_ISOC)
4539                 data->isoc = NULL;
4540
4541         if (id->driver_info & BTUSB_WIDEBAND_SPEECH)
4542                 set_bit(HCI_QUIRK_WIDEBAND_SPEECH_SUPPORTED, &hdev->quirks);
4543
4544         if (id->driver_info & BTUSB_VALID_LE_STATES)
4545                 set_bit(HCI_QUIRK_VALID_LE_STATES, &hdev->quirks);
4546
4547         if (id->driver_info & BTUSB_DIGIANSWER) {
4548                 data->cmdreq_type = USB_TYPE_VENDOR;
4549                 set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
4550         }
4551
4552         if (id->driver_info & BTUSB_CSR) {
4553                 struct usb_device *udev = data->udev;
4554                 u16 bcdDevice = le16_to_cpu(udev->descriptor.bcdDevice);
4555
4556                 /* Old firmware would otherwise execute USB reset */
4557                 if (bcdDevice < 0x117)
4558                         set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
4559
4560                 /* This must be set first in case we disable it for fakes */
4561                 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks);
4562
4563                 /* Fake CSR devices with broken commands */
4564                 if (le16_to_cpu(udev->descriptor.idVendor)  == 0x0a12 &&
4565                     le16_to_cpu(udev->descriptor.idProduct) == 0x0001)
4566                         hdev->setup = btusb_setup_csr;
4567         }
4568
4569         if (id->driver_info & BTUSB_SNIFFER) {
4570                 struct usb_device *udev = data->udev;
4571
4572                 /* New sniffer firmware has crippled HCI interface */
4573                 if (le16_to_cpu(udev->descriptor.bcdDevice) > 0x997)
4574                         set_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks);
4575         }
4576
4577         if (id->driver_info & BTUSB_INTEL_BOOT) {
4578                 /* A bug in the bootloader causes that interrupt interface is
4579                  * only enabled after receiving SetInterface(0, AltSetting=0).
4580                  */
4581                 err = usb_set_interface(data->udev, 0, 0);
4582                 if (err < 0) {
4583                         BT_ERR("failed to set interface 0, alt 0 %d", err);
4584                         goto out_free_dev;
4585                 }
4586         }
4587
4588         if (data->isoc) {
4589                 err = usb_driver_claim_interface(&btusb_driver,
4590                                                  data->isoc, data);
4591                 if (err < 0)
4592                         goto out_free_dev;
4593         }
4594
4595         if (IS_ENABLED(CONFIG_BT_HCIBTUSB_BCM) && data->diag) {
4596                 if (!usb_driver_claim_interface(&btusb_driver,
4597                                                 data->diag, data))
4598                         __set_diag_interface(hdev);
4599                 else
4600                         data->diag = NULL;
4601         }
4602
4603         if (enable_autosuspend)
4604                 usb_enable_autosuspend(data->udev);
4605
4606         data->poll_sync = enable_poll_sync;
4607
4608         err = hci_register_dev(hdev);
4609         if (err < 0)
4610                 goto out_free_dev;
4611
4612         usb_set_intfdata(intf, data);
4613
4614         debugfs_create_file("force_poll_sync", 0644, hdev->debugfs, data,
4615                             &force_poll_sync_fops);
4616
4617         return 0;
4618
4619 out_free_dev:
4620         if (data->reset_gpio)
4621                 gpiod_put(data->reset_gpio);
4622         hci_free_dev(hdev);
4623         return err;
4624 }
4625
4626 static void btusb_disconnect(struct usb_interface *intf)
4627 {
4628         struct btusb_data *data = usb_get_intfdata(intf);
4629         struct hci_dev *hdev;
4630
4631         BT_DBG("intf %p", intf);
4632
4633         if (!data)
4634                 return;
4635
4636         hdev = data->hdev;
4637         usb_set_intfdata(data->intf, NULL);
4638
4639         if (data->isoc)
4640                 usb_set_intfdata(data->isoc, NULL);
4641
4642         if (data->diag)
4643                 usb_set_intfdata(data->diag, NULL);
4644
4645         hci_unregister_dev(hdev);
4646
4647         if (intf == data->intf) {
4648                 if (data->isoc)
4649                         usb_driver_release_interface(&btusb_driver, data->isoc);
4650                 if (data->diag)
4651                         usb_driver_release_interface(&btusb_driver, data->diag);
4652         } else if (intf == data->isoc) {
4653                 if (data->diag)
4654                         usb_driver_release_interface(&btusb_driver, data->diag);
4655                 usb_driver_release_interface(&btusb_driver, data->intf);
4656         } else if (intf == data->diag) {
4657                 usb_driver_release_interface(&btusb_driver, data->intf);
4658                 if (data->isoc)
4659                         usb_driver_release_interface(&btusb_driver, data->isoc);
4660         }
4661
4662         if (data->oob_wake_irq)
4663                 device_init_wakeup(&data->udev->dev, false);
4664
4665         if (data->reset_gpio)
4666                 gpiod_put(data->reset_gpio);
4667
4668         hci_free_dev(hdev);
4669 }
4670
4671 #ifdef CONFIG_PM
4672 static int btusb_suspend(struct usb_interface *intf, pm_message_t message)
4673 {
4674         struct btusb_data *data = usb_get_intfdata(intf);
4675
4676         BT_DBG("intf %p", intf);
4677
4678         /* Don't suspend if there are connections */
4679         if (hci_conn_count(data->hdev))
4680                 return -EBUSY;
4681
4682         if (data->suspend_count++)
4683                 return 0;
4684
4685         spin_lock_irq(&data->txlock);
4686         if (!(PMSG_IS_AUTO(message) && data->tx_in_flight)) {
4687                 set_bit(BTUSB_SUSPENDING, &data->flags);
4688                 spin_unlock_irq(&data->txlock);
4689         } else {
4690                 spin_unlock_irq(&data->txlock);
4691                 data->suspend_count--;
4692                 return -EBUSY;
4693         }
4694
4695         cancel_work_sync(&data->work);
4696
4697         btusb_stop_traffic(data);
4698         usb_kill_anchored_urbs(&data->tx_anchor);
4699
4700         if (data->oob_wake_irq && device_may_wakeup(&data->udev->dev)) {
4701                 set_bit(BTUSB_OOB_WAKE_ENABLED, &data->flags);
4702                 enable_irq_wake(data->oob_wake_irq);
4703                 enable_irq(data->oob_wake_irq);
4704         }
4705
4706         /* For global suspend, Realtek devices lose the loaded fw
4707          * in them. But for autosuspend, firmware should remain.
4708          * Actually, it depends on whether the usb host sends
4709          * set feature (enable wakeup) or not.
4710          */
4711         if (test_bit(BTUSB_WAKEUP_AUTOSUSPEND, &data->flags)) {
4712                 if (PMSG_IS_AUTO(message) &&
4713                     device_can_wakeup(&data->udev->dev))
4714                         data->udev->do_remote_wakeup = 1;
4715                 else if (!PMSG_IS_AUTO(message) &&
4716                          !device_may_wakeup(&data->udev->dev)) {
4717                         data->udev->do_remote_wakeup = 0;
4718                         data->udev->reset_resume = 1;
4719                 }
4720         }
4721
4722         return 0;
4723 }
4724
4725 static void play_deferred(struct btusb_data *data)
4726 {
4727         struct urb *urb;
4728         int err;
4729
4730         while ((urb = usb_get_from_anchor(&data->deferred))) {
4731                 usb_anchor_urb(urb, &data->tx_anchor);
4732
4733                 err = usb_submit_urb(urb, GFP_ATOMIC);
4734                 if (err < 0) {
4735                         if (err != -EPERM && err != -ENODEV)
4736                                 BT_ERR("%s urb %p submission failed (%d)",
4737                                        data->hdev->name, urb, -err);
4738                         kfree(urb->setup_packet);
4739                         usb_unanchor_urb(urb);
4740                         usb_free_urb(urb);
4741                         break;
4742                 }
4743
4744                 data->tx_in_flight++;
4745                 usb_free_urb(urb);
4746         }
4747
4748         /* Cleanup the rest deferred urbs. */
4749         while ((urb = usb_get_from_anchor(&data->deferred))) {
4750                 kfree(urb->setup_packet);
4751                 usb_free_urb(urb);
4752         }
4753 }
4754
4755 static int btusb_resume(struct usb_interface *intf)
4756 {
4757         struct btusb_data *data = usb_get_intfdata(intf);
4758         struct hci_dev *hdev = data->hdev;
4759         int err = 0;
4760
4761         BT_DBG("intf %p", intf);
4762
4763         if (--data->suspend_count)
4764                 return 0;
4765
4766         /* Disable only if not already disabled (keep it balanced) */
4767         if (test_and_clear_bit(BTUSB_OOB_WAKE_ENABLED, &data->flags)) {
4768                 disable_irq(data->oob_wake_irq);
4769                 disable_irq_wake(data->oob_wake_irq);
4770         }
4771
4772         if (!test_bit(HCI_RUNNING, &hdev->flags))
4773                 goto done;
4774
4775         if (test_bit(BTUSB_INTR_RUNNING, &data->flags)) {
4776                 err = btusb_submit_intr_urb(hdev, GFP_NOIO);
4777                 if (err < 0) {
4778                         clear_bit(BTUSB_INTR_RUNNING, &data->flags);
4779                         goto failed;
4780                 }
4781         }
4782
4783         if (test_bit(BTUSB_BULK_RUNNING, &data->flags)) {
4784                 err = btusb_submit_bulk_urb(hdev, GFP_NOIO);
4785                 if (err < 0) {
4786                         clear_bit(BTUSB_BULK_RUNNING, &data->flags);
4787                         goto failed;
4788                 }
4789
4790                 btusb_submit_bulk_urb(hdev, GFP_NOIO);
4791         }
4792
4793         if (test_bit(BTUSB_ISOC_RUNNING, &data->flags)) {
4794                 if (btusb_submit_isoc_urb(hdev, GFP_NOIO) < 0)
4795                         clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
4796                 else
4797                         btusb_submit_isoc_urb(hdev, GFP_NOIO);
4798         }
4799
4800         spin_lock_irq(&data->txlock);
4801         play_deferred(data);
4802         clear_bit(BTUSB_SUSPENDING, &data->flags);
4803         spin_unlock_irq(&data->txlock);
4804         schedule_work(&data->work);
4805
4806         return 0;
4807
4808 failed:
4809         usb_scuttle_anchored_urbs(&data->deferred);
4810 done:
4811         spin_lock_irq(&data->txlock);
4812         clear_bit(BTUSB_SUSPENDING, &data->flags);
4813         spin_unlock_irq(&data->txlock);
4814
4815         return err;
4816 }
4817 #endif
4818
4819 #ifdef CONFIG_DEV_COREDUMP
4820 static void btusb_coredump(struct device *dev)
4821 {
4822         struct btusb_data *data = dev_get_drvdata(dev);
4823         struct hci_dev *hdev = data->hdev;
4824
4825         if (hdev->dump.coredump)
4826                 hdev->dump.coredump(hdev);
4827 }
4828 #endif
4829
4830 static struct usb_driver btusb_driver = {
4831         .name           = "btusb",
4832         .probe          = btusb_probe,
4833         .disconnect     = btusb_disconnect,
4834 #ifdef CONFIG_PM
4835         .suspend        = btusb_suspend,
4836         .resume         = btusb_resume,
4837 #endif
4838         .id_table       = btusb_table,
4839         .supports_autosuspend = 1,
4840         .disable_hub_initiated_lpm = 1,
4841
4842 #ifdef CONFIG_DEV_COREDUMP
4843         .driver = {
4844                 .coredump = btusb_coredump,
4845         },
4846 #endif
4847 };
4848
4849 module_usb_driver(btusb_driver);
4850
4851 module_param(disable_scofix, bool, 0644);
4852 MODULE_PARM_DESC(disable_scofix, "Disable fixup of wrong SCO buffer size");
4853
4854 module_param(force_scofix, bool, 0644);
4855 MODULE_PARM_DESC(force_scofix, "Force fixup of wrong SCO buffers size");
4856
4857 module_param(enable_autosuspend, bool, 0644);
4858 MODULE_PARM_DESC(enable_autosuspend, "Enable USB autosuspend by default");
4859
4860 module_param(reset, bool, 0644);
4861 MODULE_PARM_DESC(reset, "Send HCI reset command on initialization");
4862
4863 MODULE_AUTHOR("Marcel Holtmann <[email protected]>");
4864 MODULE_DESCRIPTION("Generic Bluetooth USB driver ver " VERSION);
4865 MODULE_VERSION(VERSION);
4866 MODULE_LICENSE("GPL");