drivers/bluetooth/btusb.c

   1 // SPDX-License-Identifier: GPL-2.0-or-later
   2 /*
   3  *
   4  *  Generic Bluetooth USB driver
   5  *
   6  *  Copyright (C) 2005-2008  Marcel Holtmann <marcel@holtmann.org>
   7  */
   8
   9 #include <linux/dmi.h>
  10 #include <linux/module.h>
  11 #include <linux/usb.h>
  12 #include <linux/usb/quirks.h>
  13 #include <linux/firmware.h>
  14 #include <linux/iopoll.h>
  15 #include <linux/of_device.h>
  16 #include <linux/of_irq.h>
  17 #include <linux/suspend.h>
  18 #include <linux/gpio/consumer.h>
  19 #include <linux/debugfs.h>
  20 #include <asm/unaligned.h>
  21
  22 #include <net/bluetooth/bluetooth.h>
  23 #include <net/bluetooth/hci_core.h>
  24
  25 #include "btintel.h"
  26 #include "btbcm.h"
  27 #include "btrtl.h"
  28 #include "btmtk.h"
  29
  30 #define VERSION "0.8"
  31
  32 static bool disable_scofix;
  33 static bool force_scofix;
  34 static bool enable_autosuspend = IS_ENABLED(CONFIG_BT_HCIBTUSB_AUTOSUSPEND);
  35 static bool enable_poll_sync = IS_ENABLED(CONFIG_BT_HCIBTUSB_POLL_SYNC);
  36 static bool reset = true;
  37
  38 static struct usb_driver btusb_driver;
  39
  40 #define BTUSB_IGNORE                    BIT(0)
  41 #define BTUSB_DIGIANSWER                BIT(1)
  42 #define BTUSB_CSR                       BIT(2)
  43 #define BTUSB_SNIFFER                   BIT(3)
  44 #define BTUSB_BCM92035                  BIT(4)
  45 #define BTUSB_BROKEN_ISOC               BIT(5)
  46 #define BTUSB_WRONG_SCO_MTU             BIT(6)
  47 #define BTUSB_ATH3012                   BIT(7)
  48 #define BTUSB_INTEL_COMBINED            BIT(8)
  49 #define BTUSB_INTEL_BOOT                BIT(9)
  50 #define BTUSB_BCM_PATCHRAM              BIT(10)
  51 #define BTUSB_MARVELL                   BIT(11)
  52 #define BTUSB_SWAVE                     BIT(12)
  53 #define BTUSB_AMP                       BIT(13)
  54 #define BTUSB_QCA_ROME                  BIT(14)
  55 #define BTUSB_BCM_APPLE                 BIT(15)
  56 #define BTUSB_REALTEK                   BIT(16)
  57 #define BTUSB_BCM2045                   BIT(17)
  58 #define BTUSB_IFNUM_2                   BIT(18)
  59 #define BTUSB_CW6622                    BIT(19)
  60 #define BTUSB_MEDIATEK                  BIT(20)
  61 #define BTUSB_WIDEBAND_SPEECH           BIT(21)
  62 #define BTUSB_VALID_LE_STATES           BIT(22)
  63 #define BTUSB_QCA_WCN6855               BIT(23)
  64 #define BTUSB_INTEL_BROKEN_SHUTDOWN_LED BIT(24)
  65 #define BTUSB_INTEL_BROKEN_INITIAL_NCMD BIT(25)
  66 #define BTUSB_INTEL_NO_WBS_SUPPORT      BIT(26)
  67 #define BTUSB_ACTIONS_SEMI              BIT(27)
  68
  69 static const struct usb_device_id btusb_table[] = {
  70         /* Generic Bluetooth USB device */
  71         { USB_DEVICE_INFO(0xe0, 0x01, 0x01) },
  72
  73         /* Generic Bluetooth AMP device */
  74         { USB_DEVICE_INFO(0xe0, 0x01, 0x04), .driver_info = BTUSB_AMP },
  75
  76         /* Generic Bluetooth USB interface */
  77         { USB_INTERFACE_INFO(0xe0, 0x01, 0x01) },
  78
  79         /* Apple-specific (Broadcom) devices */
  80         { USB_VENDOR_AND_INTERFACE_INFO(0x05ac, 0xff, 0x01, 0x01),
  81           .driver_info = BTUSB_BCM_APPLE | BTUSB_IFNUM_2 },
  82
  83         /* MediaTek MT76x0E */
  84         { USB_DEVICE(0x0e8d, 0x763f) },
  85
  86         /* Broadcom SoftSailing reporting vendor specific */
  87         { USB_DEVICE(0x0a5c, 0x21e1) },
  88
  89         /* Apple MacBookPro 7,1 */
  90         { USB_DEVICE(0x05ac, 0x8213) },
  91
  92         /* Apple iMac11,1 */
  93         { USB_DEVICE(0x05ac, 0x8215) },
  94
  95         /* Apple MacBookPro6,2 */
  96         { USB_DEVICE(0x05ac, 0x8218) },
  97
  98         /* Apple MacBookAir3,1, MacBookAir3,2 */
  99         { USB_DEVICE(0x05ac, 0x821b) },
 100
 101         /* Apple MacBookAir4,1 */
 102         { USB_DEVICE(0x05ac, 0x821f) },
 103
 104         /* Apple MacBookPro8,2 */
 105         { USB_DEVICE(0x05ac, 0x821a) },
 106
 107         /* Apple MacMini5,1 */
 108         { USB_DEVICE(0x05ac, 0x8281) },
 109
 110         /* AVM BlueFRITZ! USB v2.0 */
 111         { USB_DEVICE(0x057c, 0x3800), .driver_info = BTUSB_SWAVE },
 112
 113         /* Bluetooth Ultraport Module from IBM */
 114         { USB_DEVICE(0x04bf, 0x030a) },
 115
 116         /* ALPS Modules with non-standard id */
 117         { USB_DEVICE(0x044e, 0x3001) },
 118         { USB_DEVICE(0x044e, 0x3002) },
 119
 120         /* Ericsson with non-standard id */
 121         { USB_DEVICE(0x0bdb, 0x1002) },
 122
 123         /* Canyon CN-BTU1 with HID interfaces */
 124         { USB_DEVICE(0x0c10, 0x0000) },
 125
 126         /* Broadcom BCM20702B0 (Dynex/Insignia) */
 127         { USB_DEVICE(0x19ff, 0x0239), .driver_info = BTUSB_BCM_PATCHRAM },
 128
 129         /* Broadcom BCM43142A0 (Foxconn/Lenovo) */
 130         { USB_VENDOR_AND_INTERFACE_INFO(0x105b, 0xff, 0x01, 0x01),
 131           .driver_info = BTUSB_BCM_PATCHRAM },
 132
 133         /* Broadcom BCM920703 (HTC Vive) */
 134         { USB_VENDOR_AND_INTERFACE_INFO(0x0bb4, 0xff, 0x01, 0x01),
 135           .driver_info = BTUSB_BCM_PATCHRAM },
 136
 137         /* Foxconn - Hon Hai */
 138         { USB_VENDOR_AND_INTERFACE_INFO(0x0489, 0xff, 0x01, 0x01),
 139           .driver_info = BTUSB_BCM_PATCHRAM },
 140
 141         /* Lite-On Technology - Broadcom based */
 142         { USB_VENDOR_AND_INTERFACE_INFO(0x04ca, 0xff, 0x01, 0x01),
 143           .driver_info = BTUSB_BCM_PATCHRAM },
 144
 145         /* Broadcom devices with vendor specific id */
 146         { USB_VENDOR_AND_INTERFACE_INFO(0x0a5c, 0xff, 0x01, 0x01),
 147           .driver_info = BTUSB_BCM_PATCHRAM },
 148
 149         /* ASUSTek Computer - Broadcom based */
 150         { USB_VENDOR_AND_INTERFACE_INFO(0x0b05, 0xff, 0x01, 0x01),
 151           .driver_info = BTUSB_BCM_PATCHRAM },
 152
 153         /* Belkin F8065bf - Broadcom based */
 154         { USB_VENDOR_AND_INTERFACE_INFO(0x050d, 0xff, 0x01, 0x01),
 155           .driver_info = BTUSB_BCM_PATCHRAM },
 156
 157         /* IMC Networks - Broadcom based */
 158         { USB_VENDOR_AND_INTERFACE_INFO(0x13d3, 0xff, 0x01, 0x01),
 159           .driver_info = BTUSB_BCM_PATCHRAM },
 160
 161         /* Dell Computer - Broadcom based  */
 162         { USB_VENDOR_AND_INTERFACE_INFO(0x413c, 0xff, 0x01, 0x01),
 163           .driver_info = BTUSB_BCM_PATCHRAM },
 164
 165         /* Toshiba Corp - Broadcom based */
 166         { USB_VENDOR_AND_INTERFACE_INFO(0x0930, 0xff, 0x01, 0x01),
 167           .driver_info = BTUSB_BCM_PATCHRAM },
 168
 169         /* Intel Bluetooth USB Bootloader (RAM module) */
 170         { USB_DEVICE(0x8087, 0x0a5a),
 171           .driver_info = BTUSB_INTEL_BOOT | BTUSB_BROKEN_ISOC },
 172
 173         { }     /* Terminating entry */
 174 };
 175
 176 MODULE_DEVICE_TABLE(usb, btusb_table);
 177
 178 static const struct usb_device_id blacklist_table[] = {
 179         /* CSR BlueCore devices */
 180         { USB_DEVICE(0x0a12, 0x0001), .driver_info = BTUSB_CSR },
 181
 182         /* Broadcom BCM2033 without firmware */
 183         { USB_DEVICE(0x0a5c, 0x2033), .driver_info = BTUSB_IGNORE },
 184
 185         /* Broadcom BCM2045 devices */
 186         { USB_DEVICE(0x0a5c, 0x2045), .driver_info = BTUSB_BCM2045 },
 187
 188         /* Atheros 3011 with sflash firmware */
 189         { USB_DEVICE(0x0489, 0xe027), .driver_info = BTUSB_IGNORE },
 190         { USB_DEVICE(0x0489, 0xe03d), .driver_info = BTUSB_IGNORE },
 191         { USB_DEVICE(0x04f2, 0xaff1), .driver_info = BTUSB_IGNORE },
 192         { USB_DEVICE(0x0930, 0x0215), .driver_info = BTUSB_IGNORE },
 193         { USB_DEVICE(0x0cf3, 0x3002), .driver_info = BTUSB_IGNORE },
 194         { USB_DEVICE(0x0cf3, 0xe019), .driver_info = BTUSB_IGNORE },
 195         { USB_DEVICE(0x13d3, 0x3304), .driver_info = BTUSB_IGNORE },
 196
 197         /* Atheros AR9285 Malbec with sflash firmware */
 198         { USB_DEVICE(0x03f0, 0x311d), .driver_info = BTUSB_IGNORE },
 199
 200         /* Atheros 3012 with sflash firmware */
 201         { USB_DEVICE(0x0489, 0xe04d), .driver_info = BTUSB_ATH3012 },
 202         { USB_DEVICE(0x0489, 0xe04e), .driver_info = BTUSB_ATH3012 },
 203         { USB_DEVICE(0x0489, 0xe056), .driver_info = BTUSB_ATH3012 },
 204         { USB_DEVICE(0x0489, 0xe057), .driver_info = BTUSB_ATH3012 },
 205         { USB_DEVICE(0x0489, 0xe05f), .driver_info = BTUSB_ATH3012 },
 206         { USB_DEVICE(0x0489, 0xe076), .driver_info = BTUSB_ATH3012 },
 207         { USB_DEVICE(0x0489, 0xe078), .driver_info = BTUSB_ATH3012 },
 208         { USB_DEVICE(0x0489, 0xe095), .driver_info = BTUSB_ATH3012 },
 209         { USB_DEVICE(0x04c5, 0x1330), .driver_info = BTUSB_ATH3012 },
 210         { USB_DEVICE(0x04ca, 0x3004), .driver_info = BTUSB_ATH3012 },
 211         { USB_DEVICE(0x04ca, 0x3005), .driver_info = BTUSB_ATH3012 },
 212         { USB_DEVICE(0x04ca, 0x3006), .driver_info = BTUSB_ATH3012 },
 213         { USB_DEVICE(0x04ca, 0x3007), .driver_info = BTUSB_ATH3012 },
 214         { USB_DEVICE(0x04ca, 0x3008), .driver_info = BTUSB_ATH3012 },
 215         { USB_DEVICE(0x04ca, 0x300b), .driver_info = BTUSB_ATH3012 },
 216         { USB_DEVICE(0x04ca, 0x300d), .driver_info = BTUSB_ATH3012 },
 217         { USB_DEVICE(0x04ca, 0x300f), .driver_info = BTUSB_ATH3012 },
 218         { USB_DEVICE(0x04ca, 0x3010), .driver_info = BTUSB_ATH3012 },
 219         { USB_DEVICE(0x04ca, 0x3014), .driver_info = BTUSB_ATH3012 },
 220         { USB_DEVICE(0x04ca, 0x3018), .driver_info = BTUSB_ATH3012 },
 221         { USB_DEVICE(0x0930, 0x0219), .driver_info = BTUSB_ATH3012 },
 222         { USB_DEVICE(0x0930, 0x021c), .driver_info = BTUSB_ATH3012 },
 223         { USB_DEVICE(0x0930, 0x0220), .driver_info = BTUSB_ATH3012 },
 224         { USB_DEVICE(0x0930, 0x0227), .driver_info = BTUSB_ATH3012 },
 225         { USB_DEVICE(0x0b05, 0x17d0), .driver_info = BTUSB_ATH3012 },
 226         { USB_DEVICE(0x0cf3, 0x0036), .driver_info = BTUSB_ATH3012 },
 227         { USB_DEVICE(0x0cf3, 0x3004), .driver_info = BTUSB_ATH3012 },
 228         { USB_DEVICE(0x0cf3, 0x3008), .driver_info = BTUSB_ATH3012 },
 229         { USB_DEVICE(0x0cf3, 0x311d), .driver_info = BTUSB_ATH3012 },
 230         { USB_DEVICE(0x0cf3, 0x311e), .driver_info = BTUSB_ATH3012 },
 231         { USB_DEVICE(0x0cf3, 0x311f), .driver_info = BTUSB_ATH3012 },
 232         { USB_DEVICE(0x0cf3, 0x3121), .driver_info = BTUSB_ATH3012 },
 233         { USB_DEVICE(0x0cf3, 0x817a), .driver_info = BTUSB_ATH3012 },
 234         { USB_DEVICE(0x0cf3, 0x817b), .driver_info = BTUSB_ATH3012 },
 235         { USB_DEVICE(0x0cf3, 0xe003), .driver_info = BTUSB_ATH3012 },
 236         { USB_DEVICE(0x0cf3, 0xe004), .driver_info = BTUSB_ATH3012 },
 237         { USB_DEVICE(0x0cf3, 0xe005), .driver_info = BTUSB_ATH3012 },
 238         { USB_DEVICE(0x0cf3, 0xe006), .driver_info = BTUSB_ATH3012 },
 239         { USB_DEVICE(0x13d3, 0x3362), .driver_info = BTUSB_ATH3012 },
 240         { USB_DEVICE(0x13d3, 0x3375), .driver_info = BTUSB_ATH3012 },
 241         { USB_DEVICE(0x13d3, 0x3393), .driver_info = BTUSB_ATH3012 },
 242         { USB_DEVICE(0x13d3, 0x3395), .driver_info = BTUSB_ATH3012 },
 243         { USB_DEVICE(0x13d3, 0x3402), .driver_info = BTUSB_ATH3012 },
 244         { USB_DEVICE(0x13d3, 0x3408), .driver_info = BTUSB_ATH3012 },
 245         { USB_DEVICE(0x13d3, 0x3423), .driver_info = BTUSB_ATH3012 },
 246         { USB_DEVICE(0x13d3, 0x3432), .driver_info = BTUSB_ATH3012 },
 247         { USB_DEVICE(0x13d3, 0x3472), .driver_info = BTUSB_ATH3012 },
 248         { USB_DEVICE(0x13d3, 0x3474), .driver_info = BTUSB_ATH3012 },
 249         { USB_DEVICE(0x13d3, 0x3487), .driver_info = BTUSB_ATH3012 },
 250         { USB_DEVICE(0x13d3, 0x3490), .driver_info = BTUSB_ATH3012 },
 251
 252         /* Atheros AR5BBU12 with sflash firmware */
 253         { USB_DEVICE(0x0489, 0xe02c), .driver_info = BTUSB_IGNORE },
 254
 255         /* Atheros AR5BBU12 with sflash firmware */
 256         { USB_DEVICE(0x0489, 0xe036), .driver_info = BTUSB_ATH3012 },
 257         { USB_DEVICE(0x0489, 0xe03c), .driver_info = BTUSB_ATH3012 },
 258
 259         /* QCA ROME chipset */
 260         { USB_DEVICE(0x0cf3, 0x535b), .driver_info = BTUSB_QCA_ROME |
 261                                                      BTUSB_WIDEBAND_SPEECH },
 262         { USB_DEVICE(0x0cf3, 0xe007), .driver_info = BTUSB_QCA_ROME |
 263                                                      BTUSB_WIDEBAND_SPEECH },
 264         { USB_DEVICE(0x0cf3, 0xe009), .driver_info = BTUSB_QCA_ROME |
 265                                                      BTUSB_WIDEBAND_SPEECH },
 266         { USB_DEVICE(0x0cf3, 0xe010), .driver_info = BTUSB_QCA_ROME |
 267                                                      BTUSB_WIDEBAND_SPEECH },
 268         { USB_DEVICE(0x0cf3, 0xe300), .driver_info = BTUSB_QCA_ROME |
 269                                                      BTUSB_WIDEBAND_SPEECH },
 270         { USB_DEVICE(0x0cf3, 0xe301), .driver_info = BTUSB_QCA_ROME |
 271                                                      BTUSB_WIDEBAND_SPEECH },
 272         { USB_DEVICE(0x0cf3, 0xe360), .driver_info = BTUSB_QCA_ROME |
 273                                                      BTUSB_WIDEBAND_SPEECH },
 274         { USB_DEVICE(0x0cf3, 0xe500), .driver_info = BTUSB_QCA_ROME |
 275                                                      BTUSB_WIDEBAND_SPEECH },
 276         { USB_DEVICE(0x0489, 0xe092), .driver_info = BTUSB_QCA_ROME |
 277                                                      BTUSB_WIDEBAND_SPEECH },
 278         { USB_DEVICE(0x0489, 0xe09f), .driver_info = BTUSB_QCA_ROME |
 279                                                      BTUSB_WIDEBAND_SPEECH },
 280         { USB_DEVICE(0x0489, 0xe0a2), .driver_info = BTUSB_QCA_ROME |
 281                                                      BTUSB_WIDEBAND_SPEECH },
 282         { USB_DEVICE(0x04ca, 0x3011), .driver_info = BTUSB_QCA_ROME |
 283                                                      BTUSB_WIDEBAND_SPEECH },
 284         { USB_DEVICE(0x04ca, 0x3015), .driver_info = BTUSB_QCA_ROME |
 285                                                      BTUSB_WIDEBAND_SPEECH },
 286         { USB_DEVICE(0x04ca, 0x3016), .driver_info = BTUSB_QCA_ROME |
 287                                                      BTUSB_WIDEBAND_SPEECH },
 288         { USB_DEVICE(0x04ca, 0x301a), .driver_info = BTUSB_QCA_ROME |
 289                                                      BTUSB_WIDEBAND_SPEECH },
 290         { USB_DEVICE(0x04ca, 0x3021), .driver_info = BTUSB_QCA_ROME |
 291                                                      BTUSB_WIDEBAND_SPEECH },
 292         { USB_DEVICE(0x13d3, 0x3491), .driver_info = BTUSB_QCA_ROME |
 293                                                      BTUSB_WIDEBAND_SPEECH },
 294         { USB_DEVICE(0x13d3, 0x3496), .driver_info = BTUSB_QCA_ROME |
 295                                                      BTUSB_WIDEBAND_SPEECH },
 296         { USB_DEVICE(0x13d3, 0x3501), .driver_info = BTUSB_QCA_ROME |
 297                                                      BTUSB_WIDEBAND_SPEECH },
 298
 299         /* QCA WCN6855 chipset */
 300         { USB_DEVICE(0x0cf3, 0xe600), .driver_info = BTUSB_QCA_WCN6855 |
 301                                                      BTUSB_WIDEBAND_SPEECH |
 302                                                      BTUSB_VALID_LE_STATES },
 303         { USB_DEVICE(0x0489, 0xe0cc), .driver_info = BTUSB_QCA_WCN6855 |
 304                                                      BTUSB_WIDEBAND_SPEECH |
 305                                                      BTUSB_VALID_LE_STATES },
 306         { USB_DEVICE(0x0489, 0xe0d6), .driver_info = BTUSB_QCA_WCN6855 |
 307                                                      BTUSB_WIDEBAND_SPEECH |
 308                                                      BTUSB_VALID_LE_STATES },
 309         { USB_DEVICE(0x0489, 0xe0e3), .driver_info = BTUSB_QCA_WCN6855 |
 310                                                      BTUSB_WIDEBAND_SPEECH |
 311                                                      BTUSB_VALID_LE_STATES },
 312         { USB_DEVICE(0x10ab, 0x9309), .driver_info = BTUSB_QCA_WCN6855 |
 313                                                      BTUSB_WIDEBAND_SPEECH |
 314                                                      BTUSB_VALID_LE_STATES },
 315         { USB_DEVICE(0x10ab, 0x9409), .driver_info = BTUSB_QCA_WCN6855 |
 316                                                      BTUSB_WIDEBAND_SPEECH |
 317                                                      BTUSB_VALID_LE_STATES },
 318         { USB_DEVICE(0x0489, 0xe0d0), .driver_info = BTUSB_QCA_WCN6855 |
 319                                                      BTUSB_WIDEBAND_SPEECH |
 320                                                      BTUSB_VALID_LE_STATES },
 321         { USB_DEVICE(0x10ab, 0x9108), .driver_info = BTUSB_QCA_WCN6855 |
 322                                                      BTUSB_WIDEBAND_SPEECH |
 323                                                      BTUSB_VALID_LE_STATES },
 324         { USB_DEVICE(0x10ab, 0x9109), .driver_info = BTUSB_QCA_WCN6855 |
 325                                                      BTUSB_WIDEBAND_SPEECH |
 326                                                      BTUSB_VALID_LE_STATES },
 327         { USB_DEVICE(0x10ab, 0x9208), .driver_info = BTUSB_QCA_WCN6855 |
 328                                                      BTUSB_WIDEBAND_SPEECH |
 329                                                      BTUSB_VALID_LE_STATES },
 330         { USB_DEVICE(0x10ab, 0x9209), .driver_info = BTUSB_QCA_WCN6855 |
 331                                                      BTUSB_WIDEBAND_SPEECH |
 332                                                      BTUSB_VALID_LE_STATES },
 333         { USB_DEVICE(0x10ab, 0x9308), .driver_info = BTUSB_QCA_WCN6855 |
 334                                                      BTUSB_WIDEBAND_SPEECH |
 335                                                      BTUSB_VALID_LE_STATES },
 336         { USB_DEVICE(0x10ab, 0x9408), .driver_info = BTUSB_QCA_WCN6855 |
 337                                                      BTUSB_WIDEBAND_SPEECH |
 338                                                      BTUSB_VALID_LE_STATES },
 339         { USB_DEVICE(0x10ab, 0x9508), .driver_info = BTUSB_QCA_WCN6855 |
 340                                                      BTUSB_WIDEBAND_SPEECH |
 341                                                      BTUSB_VALID_LE_STATES },
 342         { USB_DEVICE(0x10ab, 0x9509), .driver_info = BTUSB_QCA_WCN6855 |
 343                                                      BTUSB_WIDEBAND_SPEECH |
 344                                                      BTUSB_VALID_LE_STATES },
 345         { USB_DEVICE(0x10ab, 0x9608), .driver_info = BTUSB_QCA_WCN6855 |
 346                                                      BTUSB_WIDEBAND_SPEECH |
 347                                                      BTUSB_VALID_LE_STATES },
 348         { USB_DEVICE(0x10ab, 0x9609), .driver_info = BTUSB_QCA_WCN6855 |
 349                                                      BTUSB_WIDEBAND_SPEECH |
 350                                                      BTUSB_VALID_LE_STATES },
 351         { USB_DEVICE(0x10ab, 0x9f09), .driver_info = BTUSB_QCA_WCN6855 |
 352                                                      BTUSB_WIDEBAND_SPEECH |
 353                                                      BTUSB_VALID_LE_STATES },
 354         { USB_DEVICE(0x04ca, 0x3022), .driver_info = BTUSB_QCA_WCN6855 |
 355                                                      BTUSB_WIDEBAND_SPEECH |
 356                                                      BTUSB_VALID_LE_STATES },
 357         { USB_DEVICE(0x0489, 0xe0c7), .driver_info = BTUSB_QCA_WCN6855 |
 358                                                      BTUSB_WIDEBAND_SPEECH |
 359                                                      BTUSB_VALID_LE_STATES },
 360         { USB_DEVICE(0x0489, 0xe0c9), .driver_info = BTUSB_QCA_WCN6855 |
 361                                                      BTUSB_WIDEBAND_SPEECH |
 362                                                      BTUSB_VALID_LE_STATES },
 363         { USB_DEVICE(0x0489, 0xe0ca), .driver_info = BTUSB_QCA_WCN6855 |
 364                                                      BTUSB_WIDEBAND_SPEECH |
 365                                                      BTUSB_VALID_LE_STATES },
 366         { USB_DEVICE(0x0489, 0xe0cb), .driver_info = BTUSB_QCA_WCN6855 |
 367                                                      BTUSB_WIDEBAND_SPEECH |
 368                                                      BTUSB_VALID_LE_STATES },
 369         { USB_DEVICE(0x0489, 0xe0ce), .driver_info = BTUSB_QCA_WCN6855 |
 370                                                      BTUSB_WIDEBAND_SPEECH |
 371                                                      BTUSB_VALID_LE_STATES },
 372         { USB_DEVICE(0x0489, 0xe0de), .driver_info = BTUSB_QCA_WCN6855 |
 373                                                      BTUSB_WIDEBAND_SPEECH |
 374                                                      BTUSB_VALID_LE_STATES },
 375         { USB_DEVICE(0x0489, 0xe0df), .driver_info = BTUSB_QCA_WCN6855 |
 376                                                      BTUSB_WIDEBAND_SPEECH |
 377                                                      BTUSB_VALID_LE_STATES },
 378         { USB_DEVICE(0x0489, 0xe0e1), .driver_info = BTUSB_QCA_WCN6855 |
 379                                                      BTUSB_WIDEBAND_SPEECH |
 380                                                      BTUSB_VALID_LE_STATES },
 381         { USB_DEVICE(0x0489, 0xe0ea), .driver_info = BTUSB_QCA_WCN6855 |
 382                                                      BTUSB_WIDEBAND_SPEECH |
 383                                                      BTUSB_VALID_LE_STATES },
 384         { USB_DEVICE(0x0489, 0xe0ec), .driver_info = BTUSB_QCA_WCN6855 |
 385                                                      BTUSB_WIDEBAND_SPEECH |
 386                                                      BTUSB_VALID_LE_STATES },
 387         { USB_DEVICE(0x04ca, 0x3023), .driver_info = BTUSB_QCA_WCN6855 |
 388                                                      BTUSB_WIDEBAND_SPEECH |
 389                                                      BTUSB_VALID_LE_STATES },
 390         { USB_DEVICE(0x04ca, 0x3024), .driver_info = BTUSB_QCA_WCN6855 |
 391                                                      BTUSB_WIDEBAND_SPEECH |
 392                                                      BTUSB_VALID_LE_STATES },
 393         { USB_DEVICE(0x04ca, 0x3a22), .driver_info = BTUSB_QCA_WCN6855 |
 394                                                      BTUSB_WIDEBAND_SPEECH |
 395                                                      BTUSB_VALID_LE_STATES },
 396         { USB_DEVICE(0x04ca, 0x3a24), .driver_info = BTUSB_QCA_WCN6855 |
 397                                                      BTUSB_WIDEBAND_SPEECH |
 398                                                      BTUSB_VALID_LE_STATES },
 399         { USB_DEVICE(0x04ca, 0x3a26), .driver_info = BTUSB_QCA_WCN6855 |
 400                                                      BTUSB_WIDEBAND_SPEECH |
 401                                                      BTUSB_VALID_LE_STATES },
 402         { USB_DEVICE(0x04ca, 0x3a27), .driver_info = BTUSB_QCA_WCN6855 |
 403                                                      BTUSB_WIDEBAND_SPEECH |
 404                                                      BTUSB_VALID_LE_STATES },
 405
 406         /* QCA WCN785x chipset */
 407         { USB_DEVICE(0x0cf3, 0xe700), .driver_info = BTUSB_QCA_WCN6855 |
 408                                                      BTUSB_WIDEBAND_SPEECH |
 409                                                      BTUSB_VALID_LE_STATES },
 410
 411         /* Broadcom BCM2035 */
 412         { USB_DEVICE(0x0a5c, 0x2009), .driver_info = BTUSB_BCM92035 },
 413         { USB_DEVICE(0x0a5c, 0x200a), .driver_info = BTUSB_WRONG_SCO_MTU },
 414         { USB_DEVICE(0x0a5c, 0x2035), .driver_info = BTUSB_WRONG_SCO_MTU },
 415
 416         /* Broadcom BCM2045 */
 417         { USB_DEVICE(0x0a5c, 0x2039), .driver_info = BTUSB_WRONG_SCO_MTU },
 418         { USB_DEVICE(0x0a5c, 0x2101), .driver_info = BTUSB_WRONG_SCO_MTU },
 419
 420         /* IBM/Lenovo ThinkPad with Broadcom chip */
 421         { USB_DEVICE(0x0a5c, 0x201e), .driver_info = BTUSB_WRONG_SCO_MTU },
 422         { USB_DEVICE(0x0a5c, 0x2110), .driver_info = BTUSB_WRONG_SCO_MTU },
 423
 424         /* HP laptop with Broadcom chip */
 425         { USB_DEVICE(0x03f0, 0x171d), .driver_info = BTUSB_WRONG_SCO_MTU },
 426
 427         /* Dell laptop with Broadcom chip */
 428         { USB_DEVICE(0x413c, 0x8126), .driver_info = BTUSB_WRONG_SCO_MTU },
 429
 430         /* Dell Wireless 370 and 410 devices */
 431         { USB_DEVICE(0x413c, 0x8152), .driver_info = BTUSB_WRONG_SCO_MTU },
 432         { USB_DEVICE(0x413c, 0x8156), .driver_info = BTUSB_WRONG_SCO_MTU },
 433
 434         /* Belkin F8T012 and F8T013 devices */
 435         { USB_DEVICE(0x050d, 0x0012), .driver_info = BTUSB_WRONG_SCO_MTU },
 436         { USB_DEVICE(0x050d, 0x0013), .driver_info = BTUSB_WRONG_SCO_MTU },
 437
 438         /* Asus WL-BTD202 device */
 439         { USB_DEVICE(0x0b05, 0x1715), .driver_info = BTUSB_WRONG_SCO_MTU },
 440
 441         /* Kensington Bluetooth USB adapter */
 442         { USB_DEVICE(0x047d, 0x105e), .driver_info = BTUSB_WRONG_SCO_MTU },
 443
 444         /* RTX Telecom based adapters with buggy SCO support */
 445         { USB_DEVICE(0x0400, 0x0807), .driver_info = BTUSB_BROKEN_ISOC },
 446         { USB_DEVICE(0x0400, 0x080a), .driver_info = BTUSB_BROKEN_ISOC },
 447
 448         /* CONWISE Technology based adapters with buggy SCO support */
 449         { USB_DEVICE(0x0e5e, 0x6622),
 450           .driver_info = BTUSB_BROKEN_ISOC | BTUSB_CW6622},
 451
 452         /* Roper Class 1 Bluetooth Dongle (Silicon Wave based) */
 453         { USB_DEVICE(0x1310, 0x0001), .driver_info = BTUSB_SWAVE },
 454
 455         /* Digianswer devices */
 456         { USB_DEVICE(0x08fd, 0x0001), .driver_info = BTUSB_DIGIANSWER },
 457         { USB_DEVICE(0x08fd, 0x0002), .driver_info = BTUSB_IGNORE },
 458
 459         /* CSR BlueCore Bluetooth Sniffer */
 460         { USB_DEVICE(0x0a12, 0x0002),
 461           .driver_info = BTUSB_SNIFFER | BTUSB_BROKEN_ISOC },
 462
 463         /* Frontline ComProbe Bluetooth Sniffer */
 464         { USB_DEVICE(0x16d3, 0x0002),
 465           .driver_info = BTUSB_SNIFFER | BTUSB_BROKEN_ISOC },
 466
 467         /* Marvell Bluetooth devices */
 468         { USB_DEVICE(0x1286, 0x2044), .driver_info = BTUSB_MARVELL },
 469         { USB_DEVICE(0x1286, 0x2046), .driver_info = BTUSB_MARVELL },
 470         { USB_DEVICE(0x1286, 0x204e), .driver_info = BTUSB_MARVELL },
 471
 472         /* Intel Bluetooth devices */
 473         { USB_DEVICE(0x8087, 0x0025), .driver_info = BTUSB_INTEL_COMBINED },
 474         { USB_DEVICE(0x8087, 0x0026), .driver_info = BTUSB_INTEL_COMBINED },
 475         { USB_DEVICE(0x8087, 0x0029), .driver_info = BTUSB_INTEL_COMBINED },
 476         { USB_DEVICE(0x8087, 0x0032), .driver_info = BTUSB_INTEL_COMBINED },
 477         { USB_DEVICE(0x8087, 0x0033), .driver_info = BTUSB_INTEL_COMBINED },
 478         { USB_DEVICE(0x8087, 0x0035), .driver_info = BTUSB_INTEL_COMBINED },
 479         { USB_DEVICE(0x8087, 0x07da), .driver_info = BTUSB_CSR },
 480         { USB_DEVICE(0x8087, 0x07dc), .driver_info = BTUSB_INTEL_COMBINED |
 481                                                      BTUSB_INTEL_NO_WBS_SUPPORT |
 482                                                      BTUSB_INTEL_BROKEN_INITIAL_NCMD |
 483                                                      BTUSB_INTEL_BROKEN_SHUTDOWN_LED },
 484         { USB_DEVICE(0x8087, 0x0a2a), .driver_info = BTUSB_INTEL_COMBINED |
 485                                                      BTUSB_INTEL_NO_WBS_SUPPORT |
 486                                                      BTUSB_INTEL_BROKEN_SHUTDOWN_LED },
 487         { USB_DEVICE(0x8087, 0x0a2b), .driver_info = BTUSB_INTEL_COMBINED },
 488         { USB_DEVICE(0x8087, 0x0aa7), .driver_info = BTUSB_INTEL_COMBINED |
 489                                                      BTUSB_INTEL_BROKEN_SHUTDOWN_LED },
 490         { USB_DEVICE(0x8087, 0x0aaa), .driver_info = BTUSB_INTEL_COMBINED },
 491
 492         /* Other Intel Bluetooth devices */
 493         { USB_VENDOR_AND_INTERFACE_INFO(0x8087, 0xe0, 0x01, 0x01),
 494           .driver_info = BTUSB_IGNORE },
 495
 496         /* Realtek 8821CE Bluetooth devices */
 497         { USB_DEVICE(0x13d3, 0x3529), .driver_info = BTUSB_REALTEK |
 498                                                      BTUSB_WIDEBAND_SPEECH },
 499
 500         /* Realtek 8822CE Bluetooth devices */
 501         { USB_DEVICE(0x0bda, 0xb00c), .driver_info = BTUSB_REALTEK |
 502                                                      BTUSB_WIDEBAND_SPEECH },
 503         { USB_DEVICE(0x0bda, 0xc822), .driver_info = BTUSB_REALTEK |
 504                                                      BTUSB_WIDEBAND_SPEECH },
 505
 506         /* Realtek 8822CU Bluetooth devices */
 507         { USB_DEVICE(0x13d3, 0x3549), .driver_info = BTUSB_REALTEK |
 508                                                      BTUSB_WIDEBAND_SPEECH },
 509
 510         /* Realtek 8852AE Bluetooth devices */
 511         { USB_DEVICE(0x0bda, 0x2852), .driver_info = BTUSB_REALTEK |
 512                                                      BTUSB_WIDEBAND_SPEECH },
 513         { USB_DEVICE(0x0bda, 0xc852), .driver_info = BTUSB_REALTEK |
 514                                                      BTUSB_WIDEBAND_SPEECH },
 515         { USB_DEVICE(0x0bda, 0x385a), .driver_info = BTUSB_REALTEK |
 516                                                      BTUSB_WIDEBAND_SPEECH },
 517         { USB_DEVICE(0x0bda, 0x4852), .driver_info = BTUSB_REALTEK |
 518                                                      BTUSB_WIDEBAND_SPEECH },
 519         { USB_DEVICE(0x04c5, 0x165c), .driver_info = BTUSB_REALTEK |
 520                                                      BTUSB_WIDEBAND_SPEECH },
 521         { USB_DEVICE(0x04ca, 0x4006), .driver_info = BTUSB_REALTEK |
 522                                                      BTUSB_WIDEBAND_SPEECH },
 523         { USB_DEVICE(0x0cb8, 0xc549), .driver_info = BTUSB_REALTEK |
 524                                                      BTUSB_WIDEBAND_SPEECH },
 525
 526         /* Realtek 8852CE Bluetooth devices */
 527         { USB_DEVICE(0x04ca, 0x4007), .driver_info = BTUSB_REALTEK |
 528                                                      BTUSB_WIDEBAND_SPEECH },
 529         { USB_DEVICE(0x04c5, 0x1675), .driver_info = BTUSB_REALTEK |
 530                                                      BTUSB_WIDEBAND_SPEECH },
 531         { USB_DEVICE(0x0cb8, 0xc558), .driver_info = BTUSB_REALTEK |
 532                                                      BTUSB_WIDEBAND_SPEECH },
 533         { USB_DEVICE(0x13d3, 0x3587), .driver_info = BTUSB_REALTEK |
 534                                                      BTUSB_WIDEBAND_SPEECH },
 535         { USB_DEVICE(0x13d3, 0x3586), .driver_info = BTUSB_REALTEK |
 536                                                      BTUSB_WIDEBAND_SPEECH },
 537         { USB_DEVICE(0x13d3, 0x3592), .driver_info = BTUSB_REALTEK |
 538                                                      BTUSB_WIDEBAND_SPEECH },
 539
 540         /* Realtek 8852BE Bluetooth devices */
 541         { USB_DEVICE(0x0cb8, 0xc559), .driver_info = BTUSB_REALTEK |
 542                                                      BTUSB_WIDEBAND_SPEECH },
 543         { USB_DEVICE(0x0bda, 0x887b), .driver_info = BTUSB_REALTEK |
 544                                                      BTUSB_WIDEBAND_SPEECH },
 545         { USB_DEVICE(0x13d3, 0x3571), .driver_info = BTUSB_REALTEK |
 546                                                      BTUSB_WIDEBAND_SPEECH },
 547
 548         /* Realtek Bluetooth devices */
 549         { USB_VENDOR_AND_INTERFACE_INFO(0x0bda, 0xe0, 0x01, 0x01),
 550           .driver_info = BTUSB_REALTEK },
 551
 552         /* MediaTek Bluetooth devices */
 553         { USB_VENDOR_AND_INTERFACE_INFO(0x0e8d, 0xe0, 0x01, 0x01),
 554           .driver_info = BTUSB_MEDIATEK |
 555                          BTUSB_WIDEBAND_SPEECH |
 556                          BTUSB_VALID_LE_STATES },
 557
 558         /* Additional MediaTek MT7615E Bluetooth devices */
 559         { USB_DEVICE(0x13d3, 0x3560), .driver_info = BTUSB_MEDIATEK},
 560
 561         /* Additional MediaTek MT7663 Bluetooth devices */
 562         { USB_DEVICE(0x043e, 0x310c), .driver_info = BTUSB_MEDIATEK |
 563                                                      BTUSB_WIDEBAND_SPEECH |
 564                                                      BTUSB_VALID_LE_STATES },
 565         { USB_DEVICE(0x04ca, 0x3801), .driver_info = BTUSB_MEDIATEK |
 566                                                      BTUSB_WIDEBAND_SPEECH |
 567                                                      BTUSB_VALID_LE_STATES },
 568
 569         /* Additional MediaTek MT7668 Bluetooth devices */
 570         { USB_DEVICE(0x043e, 0x3109), .driver_info = BTUSB_MEDIATEK |
 571                                                      BTUSB_WIDEBAND_SPEECH |
 572                                                      BTUSB_VALID_LE_STATES },
 573
 574         /* Additional MediaTek MT7921 Bluetooth devices */
 575         { USB_DEVICE(0x0489, 0xe0c8), .driver_info = BTUSB_MEDIATEK |
 576                                                      BTUSB_WIDEBAND_SPEECH |
 577                                                      BTUSB_VALID_LE_STATES },
 578         { USB_DEVICE(0x0489, 0xe0e0), .driver_info = BTUSB_MEDIATEK |
 579                                                      BTUSB_WIDEBAND_SPEECH |
 580                                                      BTUSB_VALID_LE_STATES },
 581         { USB_DEVICE(0x0489, 0xe0f2), .driver_info = BTUSB_MEDIATEK |
 582                                                      BTUSB_WIDEBAND_SPEECH |
 583                                                      BTUSB_VALID_LE_STATES },
 584         { USB_DEVICE(0x04ca, 0x3802), .driver_info = BTUSB_MEDIATEK |
 585                                                      BTUSB_WIDEBAND_SPEECH |
 586                                                      BTUSB_VALID_LE_STATES },
 587         { USB_DEVICE(0x13d3, 0x3563), .driver_info = BTUSB_MEDIATEK |
 588                                                      BTUSB_WIDEBAND_SPEECH |
 589                                                      BTUSB_VALID_LE_STATES },
 590         { USB_DEVICE(0x13d3, 0x3564), .driver_info = BTUSB_MEDIATEK |
 591                                                      BTUSB_WIDEBAND_SPEECH |
 592                                                      BTUSB_VALID_LE_STATES },
 593         { USB_DEVICE(0x13d3, 0x3567), .driver_info = BTUSB_MEDIATEK |
 594                                                      BTUSB_WIDEBAND_SPEECH |
 595                                                      BTUSB_VALID_LE_STATES },
 596         { USB_DEVICE(0x13d3, 0x3578), .driver_info = BTUSB_MEDIATEK |
 597                                                      BTUSB_WIDEBAND_SPEECH |
 598                                                      BTUSB_VALID_LE_STATES },
 599         { USB_DEVICE(0x13d3, 0x3583), .driver_info = BTUSB_MEDIATEK |
 600                                                      BTUSB_WIDEBAND_SPEECH |
 601                                                      BTUSB_VALID_LE_STATES },
 602         { USB_DEVICE(0x0489, 0xe0cd), .driver_info = BTUSB_MEDIATEK |
 603                                                      BTUSB_WIDEBAND_SPEECH |
 604                                                      BTUSB_VALID_LE_STATES },
 605         { USB_DEVICE(0x0e8d, 0x0608), .driver_info = BTUSB_MEDIATEK |
 606                                                      BTUSB_WIDEBAND_SPEECH |
 607                                                      BTUSB_VALID_LE_STATES },
 608
 609         /* MediaTek MT7922A Bluetooth devices */
 610         { USB_DEVICE(0x0489, 0xe0d8), .driver_info = BTUSB_MEDIATEK |
 611                                                      BTUSB_WIDEBAND_SPEECH |
 612                                                      BTUSB_VALID_LE_STATES },
 613         { USB_DEVICE(0x0489, 0xe0d9), .driver_info = BTUSB_MEDIATEK |
 614                                                      BTUSB_WIDEBAND_SPEECH |
 615                                                      BTUSB_VALID_LE_STATES },
 616         { USB_DEVICE(0x0489, 0xe0f5), .driver_info = BTUSB_MEDIATEK |
 617                                                      BTUSB_WIDEBAND_SPEECH |
 618                                                      BTUSB_VALID_LE_STATES },
 619         { USB_DEVICE(0x13d3, 0x3568), .driver_info = BTUSB_MEDIATEK |
 620                                                      BTUSB_WIDEBAND_SPEECH |
 621                                                      BTUSB_VALID_LE_STATES },
 622         { USB_DEVICE(0x0489, 0xe0e2), .driver_info = BTUSB_MEDIATEK |
 623                                                      BTUSB_WIDEBAND_SPEECH |
 624                                                      BTUSB_VALID_LE_STATES },
 625         { USB_DEVICE(0x0489, 0xe0e4), .driver_info = BTUSB_MEDIATEK |
 626                                                      BTUSB_WIDEBAND_SPEECH |
 627                                                      BTUSB_VALID_LE_STATES },
 628         { USB_DEVICE(0x0489, 0xe0f2), .driver_info = BTUSB_MEDIATEK |
 629                                                      BTUSB_WIDEBAND_SPEECH |
 630                                                      BTUSB_VALID_LE_STATES },
 631
 632         /* Additional Realtek 8723AE Bluetooth devices */
 633         { USB_DEVICE(0x0930, 0x021d), .driver_info = BTUSB_REALTEK },
 634         { USB_DEVICE(0x13d3, 0x3394), .driver_info = BTUSB_REALTEK },
 635
 636         /* Additional Realtek 8723BE Bluetooth devices */
 637         { USB_DEVICE(0x0489, 0xe085), .driver_info = BTUSB_REALTEK },
 638         { USB_DEVICE(0x0489, 0xe08b), .driver_info = BTUSB_REALTEK },
 639         { USB_DEVICE(0x04f2, 0xb49f), .driver_info = BTUSB_REALTEK },
 640         { USB_DEVICE(0x13d3, 0x3410), .driver_info = BTUSB_REALTEK },
 641         { USB_DEVICE(0x13d3, 0x3416), .driver_info = BTUSB_REALTEK },
 642         { USB_DEVICE(0x13d3, 0x3459), .driver_info = BTUSB_REALTEK },
 643         { USB_DEVICE(0x13d3, 0x3494), .driver_info = BTUSB_REALTEK },
 644
 645         /* Additional Realtek 8723BU Bluetooth devices */
 646         { USB_DEVICE(0x7392, 0xa611), .driver_info = BTUSB_REALTEK },
 647
 648         /* Additional Realtek 8723DE Bluetooth devices */
 649         { USB_DEVICE(0x0bda, 0xb009), .driver_info = BTUSB_REALTEK },
 650         { USB_DEVICE(0x2ff8, 0xb011), .driver_info = BTUSB_REALTEK },
 651
 652         /* Additional Realtek 8761BUV Bluetooth devices */
 653         { USB_DEVICE(0x2357, 0x0604), .driver_info = BTUSB_REALTEK |
 654                                                      BTUSB_WIDEBAND_SPEECH },
 655         { USB_DEVICE(0x0b05, 0x190e), .driver_info = BTUSB_REALTEK |
 656                                                      BTUSB_WIDEBAND_SPEECH },
 657         { USB_DEVICE(0x2550, 0x8761), .driver_info = BTUSB_REALTEK |
 658                                                      BTUSB_WIDEBAND_SPEECH },
 659         { USB_DEVICE(0x0bda, 0x8771), .driver_info = BTUSB_REALTEK |
 660                                                      BTUSB_WIDEBAND_SPEECH },
 661         { USB_DEVICE(0x6655, 0x8771), .driver_info = BTUSB_REALTEK |
 662                                                      BTUSB_WIDEBAND_SPEECH },
 663         { USB_DEVICE(0x7392, 0xc611), .driver_info = BTUSB_REALTEK |
 664                                                      BTUSB_WIDEBAND_SPEECH },
 665         { USB_DEVICE(0x2b89, 0x8761), .driver_info = BTUSB_REALTEK |
 666                                                      BTUSB_WIDEBAND_SPEECH },
 667
 668         /* Additional Realtek 8821AE Bluetooth devices */
 669         { USB_DEVICE(0x0b05, 0x17dc), .driver_info = BTUSB_REALTEK },
 670         { USB_DEVICE(0x13d3, 0x3414), .driver_info = BTUSB_REALTEK },
 671         { USB_DEVICE(0x13d3, 0x3458), .driver_info = BTUSB_REALTEK },
 672         { USB_DEVICE(0x13d3, 0x3461), .driver_info = BTUSB_REALTEK },
 673         { USB_DEVICE(0x13d3, 0x3462), .driver_info = BTUSB_REALTEK },
 674
 675         /* Additional Realtek 8822BE Bluetooth devices */
 676         { USB_DEVICE(0x13d3, 0x3526), .driver_info = BTUSB_REALTEK },
 677         { USB_DEVICE(0x0b05, 0x185c), .driver_info = BTUSB_REALTEK },
 678
 679         /* Additional Realtek 8822CE Bluetooth devices */
 680         { USB_DEVICE(0x04ca, 0x4005), .driver_info = BTUSB_REALTEK |
 681                                                      BTUSB_WIDEBAND_SPEECH },
 682         { USB_DEVICE(0x04c5, 0x161f), .driver_info = BTUSB_REALTEK |
 683                                                      BTUSB_WIDEBAND_SPEECH },
 684         { USB_DEVICE(0x0b05, 0x18ef), .driver_info = BTUSB_REALTEK |
 685                                                      BTUSB_WIDEBAND_SPEECH },
 686         { USB_DEVICE(0x13d3, 0x3548), .driver_info = BTUSB_REALTEK |
 687                                                      BTUSB_WIDEBAND_SPEECH },
 688         { USB_DEVICE(0x13d3, 0x3549), .driver_info = BTUSB_REALTEK |
 689                                                      BTUSB_WIDEBAND_SPEECH },
 690         { USB_DEVICE(0x13d3, 0x3553), .driver_info = BTUSB_REALTEK |
 691                                                      BTUSB_WIDEBAND_SPEECH },
 692         { USB_DEVICE(0x13d3, 0x3555), .driver_info = BTUSB_REALTEK |
 693                                                      BTUSB_WIDEBAND_SPEECH },
 694         { USB_DEVICE(0x2ff8, 0x3051), .driver_info = BTUSB_REALTEK |
 695                                                      BTUSB_WIDEBAND_SPEECH },
 696         { USB_DEVICE(0x1358, 0xc123), .driver_info = BTUSB_REALTEK |
 697                                                      BTUSB_WIDEBAND_SPEECH },
 698         { USB_DEVICE(0x0bda, 0xc123), .driver_info = BTUSB_REALTEK |
 699                                                      BTUSB_WIDEBAND_SPEECH },
 700         { USB_DEVICE(0x0cb5, 0xc547), .driver_info = BTUSB_REALTEK |
 701                                                      BTUSB_WIDEBAND_SPEECH },
 702
 703         /* Actions Semiconductor ATS2851 based devices */
 704         { USB_DEVICE(0x10d7, 0xb012), .driver_info = BTUSB_ACTIONS_SEMI },
 705
 706         /* Silicon Wave based devices */
 707         { USB_DEVICE(0x0c10, 0x0000), .driver_info = BTUSB_SWAVE },
 708
 709         { }     /* Terminating entry */
 710 };
 711
 712 /* The Bluetooth USB module build into some devices needs to be reset on resume,
 713  * this is a problem with the platform (likely shutting off all power) not with
 714  * the module itself. So we use a DMI list to match known broken platforms.
 715  */
 716 static const struct dmi_system_id btusb_needs_reset_resume_table[] = {
 717         {
 718                 /* Dell OptiPlex 3060 (QCA ROME device 0cf3:e007) */
 719                 .matches = {
 720                         DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
 721                         DMI_MATCH(DMI_PRODUCT_NAME, "OptiPlex 3060"),
 722                 },
 723         },
 724         {
 725                 /* Dell XPS 9360 (QCA ROME device 0cf3:e300) */
 726                 .matches = {
 727                         DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
 728                         DMI_MATCH(DMI_PRODUCT_NAME, "XPS 13 9360"),
 729                 },
 730         },
 731         {
 732                 /* Dell Inspiron 5565 (QCA ROME device 0cf3:e009) */
 733                 .matches = {
 734                         DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
 735                         DMI_MATCH(DMI_PRODUCT_NAME, "Inspiron 5565"),
 736                 },
 737         },
 738         {}
 739 };
 740
 741 struct qca_dump_info {
 742         /* fields for dump collection */
 743         u16 id_vendor;
 744         u16 id_product;
 745         u32 fw_version;
 746         u32 controller_id;
 747         u32 ram_dump_size;
 748         u16 ram_dump_seqno;
 749 };
 750
 751 #define BTUSB_MAX_ISOC_FRAMES   10
 752
 753 #define BTUSB_INTR_RUNNING      0
 754 #define BTUSB_BULK_RUNNING      1
 755 #define BTUSB_ISOC_RUNNING      2
 756 #define BTUSB_SUSPENDING        3
 757 #define BTUSB_DID_ISO_RESUME    4
 758 #define BTUSB_BOOTLOADER        5
 759 #define BTUSB_DOWNLOADING       6
 760 #define BTUSB_FIRMWARE_LOADED   7
 761 #define BTUSB_FIRMWARE_FAILED   8
 762 #define BTUSB_BOOTING           9
 763 #define BTUSB_DIAG_RUNNING      10
 764 #define BTUSB_OOB_WAKE_ENABLED  11
 765 #define BTUSB_HW_RESET_ACTIVE   12
 766 #define BTUSB_TX_WAIT_VND_EVT   13
 767 #define BTUSB_WAKEUP_AUTOSUSPEND        14
 768 #define BTUSB_USE_ALT3_FOR_WBS  15
 769 #define BTUSB_ALT6_CONTINUOUS_TX        16
 770 #define BTUSB_HW_SSR_ACTIVE     17
 771
 772 struct btusb_data {
 773         struct hci_dev       *hdev;
 774         struct usb_device    *udev;
 775         struct usb_interface *intf;
 776         struct usb_interface *isoc;
 777         struct usb_interface *diag;
 778         unsigned isoc_ifnum;
 779
 780         unsigned long flags;
 781
 782         bool poll_sync;
 783         int intr_interval;
 784         struct work_struct  work;
 785         struct work_struct  waker;
 786         struct delayed_work rx_work;
 787
 788         struct sk_buff_head acl_q;
 789
 790         struct usb_anchor deferred;
 791         struct usb_anchor tx_anchor;
 792         int tx_in_flight;
 793         spinlock_t txlock;
 794
 795         struct usb_anchor intr_anchor;
 796         struct usb_anchor bulk_anchor;
 797         struct usb_anchor isoc_anchor;
 798         struct usb_anchor diag_anchor;
 799         struct usb_anchor ctrl_anchor;
 800         spinlock_t rxlock;
 801
 802         struct sk_buff *evt_skb;
 803         struct sk_buff *acl_skb;
 804         struct sk_buff *sco_skb;
 805
 806         struct usb_endpoint_descriptor *intr_ep;
 807         struct usb_endpoint_descriptor *bulk_tx_ep;
 808         struct usb_endpoint_descriptor *bulk_rx_ep;
 809         struct usb_endpoint_descriptor *isoc_tx_ep;
 810         struct usb_endpoint_descriptor *isoc_rx_ep;
 811         struct usb_endpoint_descriptor *diag_tx_ep;
 812         struct usb_endpoint_descriptor *diag_rx_ep;
 813
 814         struct gpio_desc *reset_gpio;
 815
 816         __u8 cmdreq_type;
 817         __u8 cmdreq;
 818
 819         unsigned int sco_num;
 820         unsigned int air_mode;
 821         bool usb_alt6_packet_flow;
 822         int isoc_altsetting;
 823         int suspend_count;
 824
 825         int (*recv_event)(struct hci_dev *hdev, struct sk_buff *skb);
 826         int (*recv_acl)(struct hci_dev *hdev, struct sk_buff *skb);
 827         int (*recv_bulk)(struct btusb_data *data, void *buffer, int count);
 828
 829         int (*setup_on_usb)(struct hci_dev *hdev);
 830
 831         int oob_wake_irq;   /* irq for out-of-band wake-on-bt */
 832         unsigned cmd_timeout_cnt;
 833
 834         struct qca_dump_info qca_dump;
 835 };
 836
 837 static void btusb_reset(struct hci_dev *hdev)
 838 {
 839         struct btusb_data *data;
 840         int err;
 841
 842         if (hdev->reset) {
 843                 hdev->reset(hdev);
 844                 return;
 845         }
 846
 847         data = hci_get_drvdata(hdev);
 848         /* This is not an unbalanced PM reference since the device will reset */
 849         err = usb_autopm_get_interface(data->intf);
 850         if (err) {
 851                 bt_dev_err(hdev, "Failed usb_autopm_get_interface: %d", err);
 852                 return;
 853         }
 854
 855         bt_dev_err(hdev, "Resetting usb device.");
 856         usb_queue_reset_device(data->intf);
 857 }
 858
 859 static void btusb_intel_cmd_timeout(struct hci_dev *hdev)
 860 {
 861         struct btusb_data *data = hci_get_drvdata(hdev);
 862         struct gpio_desc *reset_gpio = data->reset_gpio;
 863         struct btintel_data *intel_data = hci_get_priv(hdev);
 864
 865         if (++data->cmd_timeout_cnt < 5)
 866                 return;
 867
 868         if (intel_data->acpi_reset_method) {
 869                 if (test_and_set_bit(INTEL_ACPI_RESET_ACTIVE, intel_data->flags)) {
 870                         bt_dev_err(hdev, "acpi: last reset failed ? Not resetting again");
 871                         return;
 872                 }
 873
 874                 bt_dev_err(hdev, "Initiating acpi reset method");
 875                 /* If ACPI reset method fails, lets try with legacy GPIO
 876                  * toggling
 877                  */
 878                 if (!intel_data->acpi_reset_method(hdev)) {
 879                         return;
 880                 }
 881         }
 882
 883         if (!reset_gpio) {
 884                 btusb_reset(hdev);
 885                 return;
 886         }
 887
 888         /*
 889          * Toggle the hard reset line if the platform provides one. The reset
 890          * is going to yank the device off the USB and then replug. So doing
 891          * once is enough. The cleanup is handled correctly on the way out
 892          * (standard USB disconnect), and the new device is detected cleanly
 893          * and bound to the driver again like it should be.
 894          */
 895         if (test_and_set_bit(BTUSB_HW_RESET_ACTIVE, &data->flags)) {
 896                 bt_dev_err(hdev, "last reset failed? Not resetting again");
 897                 return;
 898         }
 899
 900         bt_dev_err(hdev, "Initiating HW reset via gpio");
 901         gpiod_set_value_cansleep(reset_gpio, 1);
 902         msleep(100);
 903         gpiod_set_value_cansleep(reset_gpio, 0);
 904 }
 905
 906 #define RTK_DEVCOREDUMP_CODE_MEMDUMP            0x01
 907 #define RTK_DEVCOREDUMP_CODE_HW_ERR             0x02
 908 #define RTK_DEVCOREDUMP_CODE_CMD_TIMEOUT        0x03
 909
 910 #define RTK_SUB_EVENT_CODE_COREDUMP             0x34
 911
 912 struct rtk_dev_coredump_hdr {
 913         u8 type;
 914         u8 code;
 915         u8 reserved[2];
 916 } __packed;
 917
 918 static inline void btusb_rtl_alloc_devcoredump(struct hci_dev *hdev,
 919                 struct rtk_dev_coredump_hdr *hdr, u8 *buf, u32 len)
 920 {
 921         struct sk_buff *skb;
 922
 923         skb = alloc_skb(len + sizeof(*hdr), GFP_ATOMIC);
 924         if (!skb)
 925                 return;
 926
 927         skb_put_data(skb, hdr, sizeof(*hdr));
 928         if (len)
 929                 skb_put_data(skb, buf, len);
 930
 931         if (!hci_devcd_init(hdev, skb->len)) {
 932                 hci_devcd_append(hdev, skb);
 933                 hci_devcd_complete(hdev);
 934         } else {
 935                 bt_dev_err(hdev, "RTL: Failed to generate devcoredump");
 936                 kfree_skb(skb);
 937         }
 938 }
 939
 940 static void btusb_rtl_cmd_timeout(struct hci_dev *hdev)
 941 {
 942         struct btusb_data *data = hci_get_drvdata(hdev);
 943         struct gpio_desc *reset_gpio = data->reset_gpio;
 944         struct rtk_dev_coredump_hdr hdr = {
 945                 .type = RTK_DEVCOREDUMP_CODE_CMD_TIMEOUT,
 946         };
 947
 948         btusb_rtl_alloc_devcoredump(hdev, &hdr, NULL, 0);
 949
 950         if (++data->cmd_timeout_cnt < 5)
 951                 return;
 952
 953         if (!reset_gpio) {
 954                 btusb_reset(hdev);
 955                 return;
 956         }
 957
 958         /* Toggle the hard reset line. The Realtek device is going to
 959          * yank itself off the USB and then replug. The cleanup is handled
 960          * correctly on the way out (standard USB disconnect), and the new
 961          * device is detected cleanly and bound to the driver again like
 962          * it should be.
 963          */
 964         if (test_and_set_bit(BTUSB_HW_RESET_ACTIVE, &data->flags)) {
 965                 bt_dev_err(hdev, "last reset failed? Not resetting again");
 966                 return;
 967         }
 968
 969         bt_dev_err(hdev, "Reset Realtek device via gpio");
 970         gpiod_set_value_cansleep(reset_gpio, 1);
 971         msleep(200);
 972         gpiod_set_value_cansleep(reset_gpio, 0);
 973 }
 974
 975 static void btusb_rtl_hw_error(struct hci_dev *hdev, u8 code)
 976 {
 977         struct rtk_dev_coredump_hdr hdr = {
 978                 .type = RTK_DEVCOREDUMP_CODE_HW_ERR,
 979                 .code = code,
 980         };
 981
 982         bt_dev_err(hdev, "RTL: hw err, trigger devcoredump (%d)", code);
 983
 984         btusb_rtl_alloc_devcoredump(hdev, &hdr, NULL, 0);
 985 }
 986
 987 static void btusb_qca_cmd_timeout(struct hci_dev *hdev)
 988 {
 989         struct btusb_data *data = hci_get_drvdata(hdev);
 990         struct gpio_desc *reset_gpio = data->reset_gpio;
 991
 992         if (test_bit(BTUSB_HW_SSR_ACTIVE, &data->flags)) {
 993                 bt_dev_info(hdev, "Ramdump in progress, defer cmd_timeout");
 994                 return;
 995         }
 996
 997         if (++data->cmd_timeout_cnt < 5)
 998                 return;
 999
1000         if (reset_gpio) {
1001                 bt_dev_err(hdev, "Reset qca device via bt_en gpio");
1002
1003                 /* Toggle the hard reset line. The qca bt device is going to
1004                  * yank itself off the USB and then replug. The cleanup is handled
1005                  * correctly on the way out (standard USB disconnect), and the new
1006                  * device is detected cleanly and bound to the driver again like
1007                  * it should be.
1008                  */
1009                 if (test_and_set_bit(BTUSB_HW_RESET_ACTIVE, &data->flags)) {
1010                         bt_dev_err(hdev, "last reset failed? Not resetting again");
1011                         return;
1012                 }
1013
1014                 gpiod_set_value_cansleep(reset_gpio, 0);
1015                 msleep(200);
1016                 gpiod_set_value_cansleep(reset_gpio, 1);
1017
1018                 return;
1019         }
1020
1021         btusb_reset(hdev);
1022 }
1023
1024 static inline void btusb_free_frags(struct btusb_data *data)
1025 {
1026         unsigned long flags;
1027
1028         spin_lock_irqsave(&data->rxlock, flags);
1029
1030         dev_kfree_skb_irq(data->evt_skb);
1031         data->evt_skb = NULL;
1032
1033         dev_kfree_skb_irq(data->acl_skb);
1034         data->acl_skb = NULL;
1035
1036         dev_kfree_skb_irq(data->sco_skb);
1037         data->sco_skb = NULL;
1038
1039         spin_unlock_irqrestore(&data->rxlock, flags);
1040 }
1041
1042 static int btusb_recv_event(struct btusb_data *data, struct sk_buff *skb)
1043 {
1044         if (data->intr_interval) {
1045                 /* Trigger dequeue immediatelly if an event is received */
1046                 schedule_delayed_work(&data->rx_work, 0);
1047         }
1048
1049         return data->recv_event(data->hdev, skb);
1050 }
1051
1052 static int btusb_recv_intr(struct btusb_data *data, void *buffer, int count)
1053 {
1054         struct sk_buff *skb;
1055         unsigned long flags;
1056         int err = 0;
1057
1058         spin_lock_irqsave(&data->rxlock, flags);
1059         skb = data->evt_skb;
1060
1061         while (count) {
1062                 int len;
1063
1064                 if (!skb) {
1065                         skb = bt_skb_alloc(HCI_MAX_EVENT_SIZE, GFP_ATOMIC);
1066                         if (!skb) {
1067                                 err = -ENOMEM;
1068                                 break;
1069                         }
1070
1071                         hci_skb_pkt_type(skb) = HCI_EVENT_PKT;
1072                         hci_skb_expect(skb) = HCI_EVENT_HDR_SIZE;
1073                 }
1074
1075                 len = min_t(uint, hci_skb_expect(skb), count);
1076                 skb_put_data(skb, buffer, len);
1077
1078                 count -= len;
1079                 buffer += len;
1080                 hci_skb_expect(skb) -= len;
1081
1082                 if (skb->len == HCI_EVENT_HDR_SIZE) {
1083                         /* Complete event header */
1084                         hci_skb_expect(skb) = hci_event_hdr(skb)->plen;
1085
1086                         if (skb_tailroom(skb) < hci_skb_expect(skb)) {
1087                                 kfree_skb(skb);
1088                                 skb = NULL;
1089
1090                                 err = -EILSEQ;
1091                                 break;
1092                         }
1093                 }
1094
1095                 if (!hci_skb_expect(skb)) {
1096                         /* Complete frame */
1097                         btusb_recv_event(data, skb);
1098                         skb = NULL;
1099                 }
1100         }
1101
1102         data->evt_skb = skb;
1103         spin_unlock_irqrestore(&data->rxlock, flags);
1104
1105         return err;
1106 }
1107
1108 static int btusb_recv_acl(struct btusb_data *data, struct sk_buff *skb)
1109 {
1110         /* Only queue ACL packet if intr_interval is set as it means
1111          * force_poll_sync has been enabled.
1112          */
1113         if (!data->intr_interval)
1114                 return data->recv_acl(data->hdev, skb);
1115
1116         skb_queue_tail(&data->acl_q, skb);
1117         schedule_delayed_work(&data->rx_work, data->intr_interval);
1118
1119         return 0;
1120 }
1121
1122 static int btusb_recv_bulk(struct btusb_data *data, void *buffer, int count)
1123 {
1124         struct sk_buff *skb;
1125         unsigned long flags;
1126         int err = 0;
1127
1128         spin_lock_irqsave(&data->rxlock, flags);
1129         skb = data->acl_skb;
1130
1131         while (count) {
1132                 int len;
1133
1134                 if (!skb) {
1135                         skb = bt_skb_alloc(HCI_MAX_FRAME_SIZE, GFP_ATOMIC);
1136                         if (!skb) {
1137                                 err = -ENOMEM;
1138                                 break;
1139                         }
1140
1141                         hci_skb_pkt_type(skb) = HCI_ACLDATA_PKT;
1142                         hci_skb_expect(skb) = HCI_ACL_HDR_SIZE;
1143                 }
1144
1145                 len = min_t(uint, hci_skb_expect(skb), count);
1146                 skb_put_data(skb, buffer, len);
1147
1148                 count -= len;
1149                 buffer += len;
1150                 hci_skb_expect(skb) -= len;
1151
1152                 if (skb->len == HCI_ACL_HDR_SIZE) {
1153                         __le16 dlen = hci_acl_hdr(skb)->dlen;
1154
1155                         /* Complete ACL header */
1156                         hci_skb_expect(skb) = __le16_to_cpu(dlen);
1157
1158                         if (skb_tailroom(skb) < hci_skb_expect(skb)) {
1159                                 kfree_skb(skb);
1160                                 skb = NULL;
1161
1162                                 err = -EILSEQ;
1163                                 break;
1164                         }
1165                 }
1166
1167                 if (!hci_skb_expect(skb)) {
1168                         /* Complete frame */
1169                         btusb_recv_acl(data, skb);
1170                         skb = NULL;
1171                 }
1172         }
1173
1174         data->acl_skb = skb;
1175         spin_unlock_irqrestore(&data->rxlock, flags);
1176
1177         return err;
1178 }
1179
1180 static bool btusb_validate_sco_handle(struct hci_dev *hdev,
1181                                       struct hci_sco_hdr *hdr)
1182 {
1183         __u16 handle;
1184
1185         if (hci_dev_test_flag(hdev, HCI_USER_CHANNEL))
1186                 // Can't validate, userspace controls everything.
1187                 return true;
1188
1189         /*
1190          * USB isochronous transfers are not designed to be reliable and may
1191          * lose fragments.  When this happens, the next first fragment
1192          * encountered might actually be a continuation fragment.
1193          * Validate the handle to detect it and drop it, or else the upper
1194          * layer will get garbage for a while.
1195          */
1196
1197         handle = hci_handle(__le16_to_cpu(hdr->handle));
1198
1199         switch (hci_conn_lookup_type(hdev, handle)) {
1200         case SCO_LINK:
1201         case ESCO_LINK:
1202                 return true;
1203         default:
1204                 return false;
1205         }
1206 }
1207
1208 static int btusb_recv_isoc(struct btusb_data *data, void *buffer, int count)
1209 {
1210         struct sk_buff *skb;
1211         unsigned long flags;
1212         int err = 0;
1213
1214         spin_lock_irqsave(&data->rxlock, flags);
1215         skb = data->sco_skb;
1216
1217         while (count) {
1218                 int len;
1219
1220                 if (!skb) {
1221                         skb = bt_skb_alloc(HCI_MAX_SCO_SIZE, GFP_ATOMIC);
1222                         if (!skb) {
1223                                 err = -ENOMEM;
1224                                 break;
1225                         }
1226
1227                         hci_skb_pkt_type(skb) = HCI_SCODATA_PKT;
1228                         hci_skb_expect(skb) = HCI_SCO_HDR_SIZE;
1229                 }
1230
1231                 len = min_t(uint, hci_skb_expect(skb), count);
1232                 skb_put_data(skb, buffer, len);
1233
1234                 count -= len;
1235                 buffer += len;
1236                 hci_skb_expect(skb) -= len;
1237
1238                 if (skb->len == HCI_SCO_HDR_SIZE) {
1239                         /* Complete SCO header */
1240                         struct hci_sco_hdr *hdr = hci_sco_hdr(skb);
1241
1242                         hci_skb_expect(skb) = hdr->dlen;
1243
1244                         if (skb_tailroom(skb) < hci_skb_expect(skb) ||
1245                             !btusb_validate_sco_handle(data->hdev, hdr)) {
1246                                 kfree_skb(skb);
1247                                 skb = NULL;
1248
1249                                 err = -EILSEQ;
1250                                 break;
1251                         }
1252                 }
1253
1254                 if (!hci_skb_expect(skb)) {
1255                         /* Complete frame */
1256                         hci_recv_frame(data->hdev, skb);
1257                         skb = NULL;
1258                 }
1259         }
1260
1261         data->sco_skb = skb;
1262         spin_unlock_irqrestore(&data->rxlock, flags);
1263
1264         return err;
1265 }
1266
1267 static void btusb_intr_complete(struct urb *urb)
1268 {
1269         struct hci_dev *hdev = urb->context;
1270         struct btusb_data *data = hci_get_drvdata(hdev);
1271         int err;
1272
1273         BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
1274                urb->actual_length);
1275
1276         if (!test_bit(HCI_RUNNING, &hdev->flags))
1277                 return;
1278
1279         if (urb->status == 0) {
1280                 hdev->stat.byte_rx += urb->actual_length;
1281
1282                 if (btusb_recv_intr(data, urb->transfer_buffer,
1283                                     urb->actual_length) < 0) {
1284                         bt_dev_err(hdev, "corrupted event packet");
1285                         hdev->stat.err_rx++;
1286                 }
1287         } else if (urb->status == -ENOENT) {
1288                 /* Avoid suspend failed when usb_kill_urb */
1289                 return;
1290         }
1291
1292         if (!test_bit(BTUSB_INTR_RUNNING, &data->flags))
1293                 return;
1294
1295         usb_mark_last_busy(data->udev);
1296         usb_anchor_urb(urb, &data->intr_anchor);
1297
1298         err = usb_submit_urb(urb, GFP_ATOMIC);
1299         if (err < 0) {
1300                 /* -EPERM: urb is being killed;
1301                  * -ENODEV: device got disconnected
1302                  */
1303                 if (err != -EPERM && err != -ENODEV)
1304                         bt_dev_err(hdev, "urb %p failed to resubmit (%d)",
1305                                    urb, -err);
1306                 if (err != -EPERM)
1307                         hci_cmd_sync_cancel(hdev, -err);
1308                 usb_unanchor_urb(urb);
1309         }
1310 }
1311
1312 static int btusb_submit_intr_urb(struct hci_dev *hdev, gfp_t mem_flags)
1313 {
1314         struct btusb_data *data = hci_get_drvdata(hdev);
1315         struct urb *urb;
1316         unsigned char *buf;
1317         unsigned int pipe;
1318         int err, size;
1319
1320         BT_DBG("%s", hdev->name);
1321
1322         if (!data->intr_ep)
1323                 return -ENODEV;
1324
1325         urb = usb_alloc_urb(0, mem_flags);
1326         if (!urb)
1327                 return -ENOMEM;
1328
1329         size = le16_to_cpu(data->intr_ep->wMaxPacketSize);
1330
1331         buf = kmalloc(size, mem_flags);
1332         if (!buf) {
1333                 usb_free_urb(urb);
1334                 return -ENOMEM;
1335         }
1336
1337         pipe = usb_rcvintpipe(data->udev, data->intr_ep->bEndpointAddress);
1338
1339         usb_fill_int_urb(urb, data->udev, pipe, buf, size,
1340                          btusb_intr_complete, hdev, data->intr_ep->bInterval);
1341
1342         urb->transfer_flags |= URB_FREE_BUFFER;
1343
1344         usb_anchor_urb(urb, &data->intr_anchor);
1345
1346         err = usb_submit_urb(urb, mem_flags);
1347         if (err < 0) {
1348                 if (err != -EPERM && err != -ENODEV)
1349                         bt_dev_err(hdev, "urb %p submission failed (%d)",
1350                                    urb, -err);
1351                 if (err != -EPERM)
1352                         hci_cmd_sync_cancel(hdev, -err);
1353                 usb_unanchor_urb(urb);
1354         }
1355
1356         /* Only initialize intr_interval if URB poll sync is enabled */
1357         if (!data->poll_sync)
1358                 goto done;
1359
1360         /* The units are frames (milliseconds) for full and low speed devices,
1361          * and microframes (1/8 millisecond) for highspeed and SuperSpeed
1362          * devices.
1363          *
1364          * This is done once on open/resume so it shouldn't change even if
1365          * force_poll_sync changes.
1366          */
1367         switch (urb->dev->speed) {
1368         case USB_SPEED_SUPER_PLUS:
1369         case USB_SPEED_SUPER:   /* units are 125us */
1370                 data->intr_interval = usecs_to_jiffies(urb->interval * 125);
1371                 break;
1372         default:
1373                 data->intr_interval = msecs_to_jiffies(urb->interval);
1374                 break;
1375         }
1376
1377 done:
1378         usb_free_urb(urb);
1379
1380         return err;
1381 }
1382
1383 static void btusb_bulk_complete(struct urb *urb)
1384 {
1385         struct hci_dev *hdev = urb->context;
1386         struct btusb_data *data = hci_get_drvdata(hdev);
1387         int err;
1388
1389         BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
1390                urb->actual_length);
1391
1392         if (!test_bit(HCI_RUNNING, &hdev->flags))
1393                 return;
1394
1395         if (urb->status == 0) {
1396                 hdev->stat.byte_rx += urb->actual_length;
1397
1398                 if (data->recv_bulk(data, urb->transfer_buffer,
1399                                     urb->actual_length) < 0) {
1400                         bt_dev_err(hdev, "corrupted ACL packet");
1401                         hdev->stat.err_rx++;
1402                 }
1403         } else if (urb->status == -ENOENT) {
1404                 /* Avoid suspend failed when usb_kill_urb */
1405                 return;
1406         }
1407
1408         if (!test_bit(BTUSB_BULK_RUNNING, &data->flags))
1409                 return;
1410
1411         usb_anchor_urb(urb, &data->bulk_anchor);
1412         usb_mark_last_busy(data->udev);
1413
1414         err = usb_submit_urb(urb, GFP_ATOMIC);
1415         if (err < 0) {
1416                 /* -EPERM: urb is being killed;
1417                  * -ENODEV: device got disconnected
1418                  */
1419                 if (err != -EPERM && err != -ENODEV)
1420                         bt_dev_err(hdev, "urb %p failed to resubmit (%d)",
1421                                    urb, -err);
1422                 usb_unanchor_urb(urb);
1423         }
1424 }
1425
1426 static int btusb_submit_bulk_urb(struct hci_dev *hdev, gfp_t mem_flags)
1427 {
1428         struct btusb_data *data = hci_get_drvdata(hdev);
1429         struct urb *urb;
1430         unsigned char *buf;
1431         unsigned int pipe;
1432         int err, size = HCI_MAX_FRAME_SIZE;
1433
1434         BT_DBG("%s", hdev->name);
1435
1436         if (!data->bulk_rx_ep)
1437                 return -ENODEV;
1438
1439         urb = usb_alloc_urb(0, mem_flags);
1440         if (!urb)
1441                 return -ENOMEM;
1442
1443         buf = kmalloc(size, mem_flags);
1444         if (!buf) {
1445                 usb_free_urb(urb);
1446                 return -ENOMEM;
1447         }
1448
1449         pipe = usb_rcvbulkpipe(data->udev, data->bulk_rx_ep->bEndpointAddress);
1450
1451         usb_fill_bulk_urb(urb, data->udev, pipe, buf, size,
1452                           btusb_bulk_complete, hdev);
1453
1454         urb->transfer_flags |= URB_FREE_BUFFER;
1455
1456         usb_mark_last_busy(data->udev);
1457         usb_anchor_urb(urb, &data->bulk_anchor);
1458
1459         err = usb_submit_urb(urb, mem_flags);
1460         if (err < 0) {
1461                 if (err != -EPERM && err != -ENODEV)
1462                         bt_dev_err(hdev, "urb %p submission failed (%d)",
1463                                    urb, -err);
1464                 usb_unanchor_urb(urb);
1465         }
1466
1467         usb_free_urb(urb);
1468
1469         return err;
1470 }
1471
1472 static void btusb_isoc_complete(struct urb *urb)
1473 {
1474         struct hci_dev *hdev = urb->context;
1475         struct btusb_data *data = hci_get_drvdata(hdev);
1476         int i, err;
1477
1478         BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
1479                urb->actual_length);
1480
1481         if (!test_bit(HCI_RUNNING, &hdev->flags))
1482                 return;
1483
1484         if (urb->status == 0) {
1485                 for (i = 0; i < urb->number_of_packets; i++) {
1486                         unsigned int offset = urb->iso_frame_desc[i].offset;
1487                         unsigned int length = urb->iso_frame_desc[i].actual_length;
1488
1489                         if (urb->iso_frame_desc[i].status)
1490                                 continue;
1491
1492                         hdev->stat.byte_rx += length;
1493
1494                         if (btusb_recv_isoc(data, urb->transfer_buffer + offset,
1495                                             length) < 0) {
1496                                 bt_dev_err(hdev, "corrupted SCO packet");
1497                                 hdev->stat.err_rx++;
1498                         }
1499                 }
1500         } else if (urb->status == -ENOENT) {
1501                 /* Avoid suspend failed when usb_kill_urb */
1502                 return;
1503         }
1504
1505         if (!test_bit(BTUSB_ISOC_RUNNING, &data->flags))
1506                 return;
1507
1508         usb_anchor_urb(urb, &data->isoc_anchor);
1509
1510         err = usb_submit_urb(urb, GFP_ATOMIC);
1511         if (err < 0) {
1512                 /* -EPERM: urb is being killed;
1513                  * -ENODEV: device got disconnected
1514                  */
1515                 if (err != -EPERM && err != -ENODEV)
1516                         bt_dev_err(hdev, "urb %p failed to resubmit (%d)",
1517                                    urb, -err);
1518                 usb_unanchor_urb(urb);
1519         }
1520 }
1521
1522 static inline void __fill_isoc_descriptor_msbc(struct urb *urb, int len,
1523                                                int mtu, struct btusb_data *data)
1524 {
1525         int i = 0, offset = 0;
1526         unsigned int interval;
1527
1528         BT_DBG("len %d mtu %d", len, mtu);
1529
1530         /* For mSBC ALT 6 settings some chips need to transmit the data
1531          * continuously without the zero length of USB packets.
1532          */
1533         if (test_bit(BTUSB_ALT6_CONTINUOUS_TX, &data->flags))
1534                 goto ignore_usb_alt6_packet_flow;
1535
1536         /* For mSBC ALT 6 setting the host will send the packet at continuous
1537          * flow. As per core spec 5, vol 4, part B, table 2.1. For ALT setting
1538          * 6 the HCI PACKET INTERVAL should be 7.5ms for every usb packets.
1539          * To maintain the rate we send 63bytes of usb packets alternatively for
1540          * 7ms and 8ms to maintain the rate as 7.5ms.
1541          */
1542         if (data->usb_alt6_packet_flow) {
1543                 interval = 7;
1544                 data->usb_alt6_packet_flow = false;
1545         } else {
1546                 interval = 6;
1547                 data->usb_alt6_packet_flow = true;
1548         }
1549
1550         for (i = 0; i < interval; i++) {
1551                 urb->iso_frame_desc[i].offset = offset;
1552                 urb->iso_frame_desc[i].length = offset;
1553         }
1554
1555 ignore_usb_alt6_packet_flow:
1556         if (len && i < BTUSB_MAX_ISOC_FRAMES) {
1557                 urb->iso_frame_desc[i].offset = offset;
1558                 urb->iso_frame_desc[i].length = len;
1559                 i++;
1560         }
1561
1562         urb->number_of_packets = i;
1563 }
1564
1565 static inline void __fill_isoc_descriptor(struct urb *urb, int len, int mtu)
1566 {
1567         int i, offset = 0;
1568
1569         BT_DBG("len %d mtu %d", len, mtu);
1570
1571         for (i = 0; i < BTUSB_MAX_ISOC_FRAMES && len >= mtu;
1572                                         i++, offset += mtu, len -= mtu) {
1573                 urb->iso_frame_desc[i].offset = offset;
1574                 urb->iso_frame_desc[i].length = mtu;
1575         }
1576
1577         if (len && i < BTUSB_MAX_ISOC_FRAMES) {
1578                 urb->iso_frame_desc[i].offset = offset;
1579                 urb->iso_frame_desc[i].length = len;
1580                 i++;
1581         }
1582
1583         urb->number_of_packets = i;
1584 }
1585
1586 static int btusb_submit_isoc_urb(struct hci_dev *hdev, gfp_t mem_flags)
1587 {
1588         struct btusb_data *data = hci_get_drvdata(hdev);
1589         struct urb *urb;
1590         unsigned char *buf;
1591         unsigned int pipe;
1592         int err, size;
1593
1594         BT_DBG("%s", hdev->name);
1595
1596         if (!data->isoc_rx_ep)
1597                 return -ENODEV;
1598
1599         urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, mem_flags);
1600         if (!urb)
1601                 return -ENOMEM;
1602
1603         size = le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize) *
1604                                                 BTUSB_MAX_ISOC_FRAMES;
1605
1606         buf = kmalloc(size, mem_flags);
1607         if (!buf) {
1608                 usb_free_urb(urb);
1609                 return -ENOMEM;
1610         }
1611
1612         pipe = usb_rcvisocpipe(data->udev, data->isoc_rx_ep->bEndpointAddress);
1613
1614         usb_fill_int_urb(urb, data->udev, pipe, buf, size, btusb_isoc_complete,
1615                          hdev, data->isoc_rx_ep->bInterval);
1616
1617         urb->transfer_flags = URB_FREE_BUFFER | URB_ISO_ASAP;
1618
1619         __fill_isoc_descriptor(urb, size,
1620                                le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize));
1621
1622         usb_anchor_urb(urb, &data->isoc_anchor);
1623
1624         err = usb_submit_urb(urb, mem_flags);
1625         if (err < 0) {
1626                 if (err != -EPERM && err != -ENODEV)
1627                         bt_dev_err(hdev, "urb %p submission failed (%d)",
1628                                    urb, -err);
1629                 usb_unanchor_urb(urb);
1630         }
1631
1632         usb_free_urb(urb);
1633
1634         return err;
1635 }
1636
1637 static void btusb_diag_complete(struct urb *urb)
1638 {
1639         struct hci_dev *hdev = urb->context;
1640         struct btusb_data *data = hci_get_drvdata(hdev);
1641         int err;
1642
1643         BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
1644                urb->actual_length);
1645
1646         if (urb->status == 0) {
1647                 struct sk_buff *skb;
1648
1649                 skb = bt_skb_alloc(urb->actual_length, GFP_ATOMIC);
1650                 if (skb) {
1651                         skb_put_data(skb, urb->transfer_buffer,
1652                                      urb->actual_length);
1653                         hci_recv_diag(hdev, skb);
1654                 }
1655         } else if (urb->status == -ENOENT) {
1656                 /* Avoid suspend failed when usb_kill_urb */
1657                 return;
1658         }
1659
1660         if (!test_bit(BTUSB_DIAG_RUNNING, &data->flags))
1661                 return;
1662
1663         usb_anchor_urb(urb, &data->diag_anchor);
1664         usb_mark_last_busy(data->udev);
1665
1666         err = usb_submit_urb(urb, GFP_ATOMIC);
1667         if (err < 0) {
1668                 /* -EPERM: urb is being killed;
1669                  * -ENODEV: device got disconnected
1670                  */
1671                 if (err != -EPERM && err != -ENODEV)
1672                         bt_dev_err(hdev, "urb %p failed to resubmit (%d)",
1673                                    urb, -err);
1674                 usb_unanchor_urb(urb);
1675         }
1676 }
1677
1678 static int btusb_submit_diag_urb(struct hci_dev *hdev, gfp_t mem_flags)
1679 {
1680         struct btusb_data *data = hci_get_drvdata(hdev);
1681         struct urb *urb;
1682         unsigned char *buf;
1683         unsigned int pipe;
1684         int err, size = HCI_MAX_FRAME_SIZE;
1685
1686         BT_DBG("%s", hdev->name);
1687
1688         if (!data->diag_rx_ep)
1689                 return -ENODEV;
1690
1691         urb = usb_alloc_urb(0, mem_flags);
1692         if (!urb)
1693                 return -ENOMEM;
1694
1695         buf = kmalloc(size, mem_flags);
1696         if (!buf) {
1697                 usb_free_urb(urb);
1698                 return -ENOMEM;
1699         }
1700
1701         pipe = usb_rcvbulkpipe(data->udev, data->diag_rx_ep->bEndpointAddress);
1702
1703         usb_fill_bulk_urb(urb, data->udev, pipe, buf, size,
1704                           btusb_diag_complete, hdev);
1705
1706         urb->transfer_flags |= URB_FREE_BUFFER;
1707
1708         usb_mark_last_busy(data->udev);
1709         usb_anchor_urb(urb, &data->diag_anchor);
1710
1711         err = usb_submit_urb(urb, mem_flags);
1712         if (err < 0) {
1713                 if (err != -EPERM && err != -ENODEV)
1714                         bt_dev_err(hdev, "urb %p submission failed (%d)",
1715                                    urb, -err);
1716                 usb_unanchor_urb(urb);
1717         }
1718
1719         usb_free_urb(urb);
1720
1721         return err;
1722 }
1723
1724 static void btusb_tx_complete(struct urb *urb)
1725 {
1726         struct sk_buff *skb = urb->context;
1727         struct hci_dev *hdev = (struct hci_dev *)skb->dev;
1728         struct btusb_data *data = hci_get_drvdata(hdev);
1729         unsigned long flags;
1730
1731         BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
1732                urb->actual_length);
1733
1734         if (!test_bit(HCI_RUNNING, &hdev->flags))
1735                 goto done;
1736
1737         if (!urb->status) {
1738                 hdev->stat.byte_tx += urb->transfer_buffer_length;
1739         } else {
1740                 if (hci_skb_pkt_type(skb) == HCI_COMMAND_PKT)
1741                         hci_cmd_sync_cancel(hdev, -urb->status);
1742                 hdev->stat.err_tx++;
1743         }
1744
1745 done:
1746         spin_lock_irqsave(&data->txlock, flags);
1747         data->tx_in_flight--;
1748         spin_unlock_irqrestore(&data->txlock, flags);
1749
1750         kfree(urb->setup_packet);
1751
1752         kfree_skb(skb);
1753 }
1754
1755 static void btusb_isoc_tx_complete(struct urb *urb)
1756 {
1757         struct sk_buff *skb = urb->context;
1758         struct hci_dev *hdev = (struct hci_dev *)skb->dev;
1759
1760         BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
1761                urb->actual_length);
1762
1763         if (!test_bit(HCI_RUNNING, &hdev->flags))
1764                 goto done;
1765
1766         if (!urb->status)
1767                 hdev->stat.byte_tx += urb->transfer_buffer_length;
1768         else
1769                 hdev->stat.err_tx++;
1770
1771 done:
1772         kfree(urb->setup_packet);
1773
1774         kfree_skb(skb);
1775 }
1776
1777 static int btusb_open(struct hci_dev *hdev)
1778 {
1779         struct btusb_data *data = hci_get_drvdata(hdev);
1780         int err;
1781
1782         BT_DBG("%s", hdev->name);
1783
1784         err = usb_autopm_get_interface(data->intf);
1785         if (err < 0)
1786                 return err;
1787
1788         /* Patching USB firmware files prior to starting any URBs of HCI path
1789          * It is more safe to use USB bulk channel for downloading USB patch
1790          */
1791         if (data->setup_on_usb) {
1792                 err = data->setup_on_usb(hdev);
1793                 if (err < 0)
1794                         goto setup_fail;
1795         }
1796
1797         data->intf->needs_remote_wakeup = 1;
1798
1799         if (test_and_set_bit(BTUSB_INTR_RUNNING, &data->flags))
1800                 goto done;
1801
1802         err = btusb_submit_intr_urb(hdev, GFP_KERNEL);
1803         if (err < 0)
1804                 goto failed;
1805
1806         err = btusb_submit_bulk_urb(hdev, GFP_KERNEL);
1807         if (err < 0) {
1808                 usb_kill_anchored_urbs(&data->intr_anchor);
1809                 goto failed;
1810         }
1811
1812         set_bit(BTUSB_BULK_RUNNING, &data->flags);
1813         btusb_submit_bulk_urb(hdev, GFP_KERNEL);
1814
1815         if (data->diag) {
1816                 if (!btusb_submit_diag_urb(hdev, GFP_KERNEL))
1817                         set_bit(BTUSB_DIAG_RUNNING, &data->flags);
1818         }
1819
1820 done:
1821         usb_autopm_put_interface(data->intf);
1822         return 0;
1823
1824 failed:
1825         clear_bit(BTUSB_INTR_RUNNING, &data->flags);
1826 setup_fail:
1827         usb_autopm_put_interface(data->intf);
1828         return err;
1829 }
1830
1831 static void btusb_stop_traffic(struct btusb_data *data)
1832 {
1833         usb_kill_anchored_urbs(&data->intr_anchor);
1834         usb_kill_anchored_urbs(&data->bulk_anchor);
1835         usb_kill_anchored_urbs(&data->isoc_anchor);
1836         usb_kill_anchored_urbs(&data->diag_anchor);
1837         usb_kill_anchored_urbs(&data->ctrl_anchor);
1838 }
1839
1840 static int btusb_close(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         cancel_delayed_work(&data->rx_work);
1848         cancel_work_sync(&data->work);
1849         cancel_work_sync(&data->waker);
1850
1851         skb_queue_purge(&data->acl_q);
1852
1853         clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
1854         clear_bit(BTUSB_BULK_RUNNING, &data->flags);
1855         clear_bit(BTUSB_INTR_RUNNING, &data->flags);
1856         clear_bit(BTUSB_DIAG_RUNNING, &data->flags);
1857
1858         btusb_stop_traffic(data);
1859         btusb_free_frags(data);
1860
1861         err = usb_autopm_get_interface(data->intf);
1862         if (err < 0)
1863                 goto failed;
1864
1865         data->intf->needs_remote_wakeup = 0;
1866
1867         /* Enable remote wake up for auto-suspend */
1868         if (test_bit(BTUSB_WAKEUP_AUTOSUSPEND, &data->flags))
1869                 data->intf->needs_remote_wakeup = 1;
1870
1871         usb_autopm_put_interface(data->intf);
1872
1873 failed:
1874         usb_scuttle_anchored_urbs(&data->deferred);
1875         return 0;
1876 }
1877
1878 static int btusb_flush(struct hci_dev *hdev)
1879 {
1880         struct btusb_data *data = hci_get_drvdata(hdev);
1881
1882         BT_DBG("%s", hdev->name);
1883
1884         cancel_delayed_work(&data->rx_work);
1885
1886         skb_queue_purge(&data->acl_q);
1887
1888         usb_kill_anchored_urbs(&data->tx_anchor);
1889         btusb_free_frags(data);
1890
1891         return 0;
1892 }
1893
1894 static struct urb *alloc_ctrl_urb(struct hci_dev *hdev, struct sk_buff *skb)
1895 {
1896         struct btusb_data *data = hci_get_drvdata(hdev);
1897         struct usb_ctrlrequest *dr;
1898         struct urb *urb;
1899         unsigned int pipe;
1900
1901         urb = usb_alloc_urb(0, GFP_KERNEL);
1902         if (!urb)
1903                 return ERR_PTR(-ENOMEM);
1904
1905         dr = kmalloc(sizeof(*dr), GFP_KERNEL);
1906         if (!dr) {
1907                 usb_free_urb(urb);
1908                 return ERR_PTR(-ENOMEM);
1909         }
1910
1911         dr->bRequestType = data->cmdreq_type;
1912         dr->bRequest     = data->cmdreq;
1913         dr->wIndex       = 0;
1914         dr->wValue       = 0;
1915         dr->wLength      = __cpu_to_le16(skb->len);
1916
1917         pipe = usb_sndctrlpipe(data->udev, 0x00);
1918
1919         usb_fill_control_urb(urb, data->udev, pipe, (void *)dr,
1920                              skb->data, skb->len, btusb_tx_complete, skb);
1921
1922         skb->dev = (void *)hdev;
1923
1924         return urb;
1925 }
1926
1927 static struct urb *alloc_bulk_urb(struct hci_dev *hdev, struct sk_buff *skb)
1928 {
1929         struct btusb_data *data = hci_get_drvdata(hdev);
1930         struct urb *urb;
1931         unsigned int pipe;
1932
1933         if (!data->bulk_tx_ep)
1934                 return ERR_PTR(-ENODEV);
1935
1936         urb = usb_alloc_urb(0, GFP_KERNEL);
1937         if (!urb)
1938                 return ERR_PTR(-ENOMEM);
1939
1940         pipe = usb_sndbulkpipe(data->udev, data->bulk_tx_ep->bEndpointAddress);
1941
1942         usb_fill_bulk_urb(urb, data->udev, pipe,
1943                           skb->data, skb->len, btusb_tx_complete, skb);
1944
1945         skb->dev = (void *)hdev;
1946
1947         return urb;
1948 }
1949
1950 static struct urb *alloc_isoc_urb(struct hci_dev *hdev, struct sk_buff *skb)
1951 {
1952         struct btusb_data *data = hci_get_drvdata(hdev);
1953         struct urb *urb;
1954         unsigned int pipe;
1955
1956         if (!data->isoc_tx_ep)
1957                 return ERR_PTR(-ENODEV);
1958
1959         urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, GFP_KERNEL);
1960         if (!urb)
1961                 return ERR_PTR(-ENOMEM);
1962
1963         pipe = usb_sndisocpipe(data->udev, data->isoc_tx_ep->bEndpointAddress);
1964
1965         usb_fill_int_urb(urb, data->udev, pipe,
1966                          skb->data, skb->len, btusb_isoc_tx_complete,
1967                          skb, data->isoc_tx_ep->bInterval);
1968
1969         urb->transfer_flags  = URB_ISO_ASAP;
1970
1971         if (data->isoc_altsetting == 6)
1972                 __fill_isoc_descriptor_msbc(urb, skb->len,
1973                                             le16_to_cpu(data->isoc_tx_ep->wMaxPacketSize),
1974                                             data);
1975         else
1976                 __fill_isoc_descriptor(urb, skb->len,
1977                                        le16_to_cpu(data->isoc_tx_ep->wMaxPacketSize));
1978         skb->dev = (void *)hdev;
1979
1980         return urb;
1981 }
1982
1983 static int submit_tx_urb(struct hci_dev *hdev, struct urb *urb)
1984 {
1985         struct btusb_data *data = hci_get_drvdata(hdev);
1986         int err;
1987
1988         usb_anchor_urb(urb, &data->tx_anchor);
1989
1990         err = usb_submit_urb(urb, GFP_KERNEL);
1991         if (err < 0) {
1992                 if (err != -EPERM && err != -ENODEV)
1993                         bt_dev_err(hdev, "urb %p submission failed (%d)",
1994                                    urb, -err);
1995                 kfree(urb->setup_packet);
1996                 usb_unanchor_urb(urb);
1997         } else {
1998                 usb_mark_last_busy(data->udev);
1999         }
2000
2001         usb_free_urb(urb);
2002         return err;
2003 }
2004
2005 static int submit_or_queue_tx_urb(struct hci_dev *hdev, struct urb *urb)
2006 {
2007         struct btusb_data *data = hci_get_drvdata(hdev);
2008         unsigned long flags;
2009         bool suspending;
2010
2011         spin_lock_irqsave(&data->txlock, flags);
2012         suspending = test_bit(BTUSB_SUSPENDING, &data->flags);
2013         if (!suspending)
2014                 data->tx_in_flight++;
2015         spin_unlock_irqrestore(&data->txlock, flags);
2016
2017         if (!suspending)
2018                 return submit_tx_urb(hdev, urb);
2019
2020         usb_anchor_urb(urb, &data->deferred);
2021         schedule_work(&data->waker);
2022
2023         usb_free_urb(urb);
2024         return 0;
2025 }
2026
2027 static int btusb_send_frame(struct hci_dev *hdev, struct sk_buff *skb)
2028 {
2029         struct urb *urb;
2030
2031         BT_DBG("%s", hdev->name);
2032
2033         switch (hci_skb_pkt_type(skb)) {
2034         case HCI_COMMAND_PKT:
2035                 urb = alloc_ctrl_urb(hdev, skb);
2036                 if (IS_ERR(urb))
2037                         return PTR_ERR(urb);
2038
2039                 hdev->stat.cmd_tx++;
2040                 return submit_or_queue_tx_urb(hdev, urb);
2041
2042         case HCI_ACLDATA_PKT:
2043                 urb = alloc_bulk_urb(hdev, skb);
2044                 if (IS_ERR(urb))
2045                         return PTR_ERR(urb);
2046
2047                 hdev->stat.acl_tx++;
2048                 return submit_or_queue_tx_urb(hdev, urb);
2049
2050         case HCI_SCODATA_PKT:
2051                 if (hci_conn_num(hdev, SCO_LINK) < 1)
2052                         return -ENODEV;
2053
2054                 urb = alloc_isoc_urb(hdev, skb);
2055                 if (IS_ERR(urb))
2056                         return PTR_ERR(urb);
2057
2058                 hdev->stat.sco_tx++;
2059                 return submit_tx_urb(hdev, urb);
2060
2061         case HCI_ISODATA_PKT:
2062                 urb = alloc_bulk_urb(hdev, skb);
2063                 if (IS_ERR(urb))
2064                         return PTR_ERR(urb);
2065
2066                 return submit_or_queue_tx_urb(hdev, urb);
2067         }
2068
2069         return -EILSEQ;
2070 }
2071
2072 static void btusb_notify(struct hci_dev *hdev, unsigned int evt)
2073 {
2074         struct btusb_data *data = hci_get_drvdata(hdev);
2075
2076         BT_DBG("%s evt %d", hdev->name, evt);
2077
2078         if (hci_conn_num(hdev, SCO_LINK) != data->sco_num) {
2079                 data->sco_num = hci_conn_num(hdev, SCO_LINK);
2080                 data->air_mode = evt;
2081                 schedule_work(&data->work);
2082         }
2083 }
2084
2085 static inline int __set_isoc_interface(struct hci_dev *hdev, int altsetting)
2086 {
2087         struct btusb_data *data = hci_get_drvdata(hdev);
2088         struct usb_interface *intf = data->isoc;
2089         struct usb_endpoint_descriptor *ep_desc;
2090         int i, err;
2091
2092         if (!data->isoc)
2093                 return -ENODEV;
2094
2095         err = usb_set_interface(data->udev, data->isoc_ifnum, altsetting);
2096         if (err < 0) {
2097                 bt_dev_err(hdev, "setting interface failed (%d)", -err);
2098                 return err;
2099         }
2100
2101         data->isoc_altsetting = altsetting;
2102
2103         data->isoc_tx_ep = NULL;
2104         data->isoc_rx_ep = NULL;
2105
2106         for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
2107                 ep_desc = &intf->cur_altsetting->endpoint[i].desc;
2108
2109                 if (!data->isoc_tx_ep && usb_endpoint_is_isoc_out(ep_desc)) {
2110                         data->isoc_tx_ep = ep_desc;
2111                         continue;
2112                 }
2113
2114                 if (!data->isoc_rx_ep && usb_endpoint_is_isoc_in(ep_desc)) {
2115                         data->isoc_rx_ep = ep_desc;
2116                         continue;
2117                 }
2118         }
2119
2120         if (!data->isoc_tx_ep || !data->isoc_rx_ep) {
2121                 bt_dev_err(hdev, "invalid SCO descriptors");
2122                 return -ENODEV;
2123         }
2124
2125         return 0;
2126 }
2127
2128 static int btusb_switch_alt_setting(struct hci_dev *hdev, int new_alts)
2129 {
2130         struct btusb_data *data = hci_get_drvdata(hdev);
2131         int err;
2132
2133         if (data->isoc_altsetting != new_alts) {
2134                 unsigned long flags;
2135
2136                 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
2137                 usb_kill_anchored_urbs(&data->isoc_anchor);
2138
2139                 /* When isochronous alternate setting needs to be
2140                  * changed, because SCO connection has been added
2141                  * or removed, a packet fragment may be left in the
2142                  * reassembling state. This could lead to wrongly
2143                  * assembled fragments.
2144                  *
2145                  * Clear outstanding fragment when selecting a new
2146                  * alternate setting.
2147                  */
2148                 spin_lock_irqsave(&data->rxlock, flags);
2149                 kfree_skb(data->sco_skb);
2150                 data->sco_skb = NULL;
2151                 spin_unlock_irqrestore(&data->rxlock, flags);
2152
2153                 err = __set_isoc_interface(hdev, new_alts);
2154                 if (err < 0)
2155                         return err;
2156         }
2157
2158         if (!test_and_set_bit(BTUSB_ISOC_RUNNING, &data->flags)) {
2159                 if (btusb_submit_isoc_urb(hdev, GFP_KERNEL) < 0)
2160                         clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
2161                 else
2162                         btusb_submit_isoc_urb(hdev, GFP_KERNEL);
2163         }
2164
2165         return 0;
2166 }
2167
2168 static struct usb_host_interface *btusb_find_altsetting(struct btusb_data *data,
2169                                                         int alt)
2170 {
2171         struct usb_interface *intf = data->isoc;
2172         int i;
2173
2174         BT_DBG("Looking for Alt no :%d", alt);
2175
2176         if (!intf)
2177                 return NULL;
2178
2179         for (i = 0; i < intf->num_altsetting; i++) {
2180                 if (intf->altsetting[i].desc.bAlternateSetting == alt)
2181                         return &intf->altsetting[i];
2182         }
2183
2184         return NULL;
2185 }
2186
2187 static void btusb_work(struct work_struct *work)
2188 {
2189         struct btusb_data *data = container_of(work, struct btusb_data, work);
2190         struct hci_dev *hdev = data->hdev;
2191         int new_alts = 0;
2192         int err;
2193
2194         if (data->sco_num > 0) {
2195                 if (!test_bit(BTUSB_DID_ISO_RESUME, &data->flags)) {
2196                         err = usb_autopm_get_interface(data->isoc ? data->isoc : data->intf);
2197                         if (err < 0) {
2198                                 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
2199                                 usb_kill_anchored_urbs(&data->isoc_anchor);
2200                                 return;
2201                         }
2202
2203                         set_bit(BTUSB_DID_ISO_RESUME, &data->flags);
2204                 }
2205
2206                 if (data->air_mode == HCI_NOTIFY_ENABLE_SCO_CVSD) {
2207                         if (hdev->voice_setting & 0x0020) {
2208                                 static const int alts[3] = { 2, 4, 5 };
2209
2210                                 new_alts = alts[data->sco_num - 1];
2211                         } else {
2212                                 new_alts = data->sco_num;
2213                         }
2214                 } else if (data->air_mode == HCI_NOTIFY_ENABLE_SCO_TRANSP) {
2215                         /* Bluetooth USB spec recommends alt 6 (63 bytes), but
2216                          * many adapters do not support it.  Alt 1 appears to
2217                          * work for all adapters that do not have alt 6, and
2218                          * which work with WBS at all.  Some devices prefer
2219                          * alt 3 (HCI payload >= 60 Bytes let air packet
2220                          * data satisfy 60 bytes), requiring
2221                          * MTU >= 3 (packets) * 25 (size) - 3 (headers) = 72
2222                          * see also Core spec 5, vol 4, B 2.1.1 & Table 2.1.
2223                          */
2224                         if (btusb_find_altsetting(data, 6))
2225                                 new_alts = 6;
2226                         else if (btusb_find_altsetting(data, 3) &&
2227                                  hdev->sco_mtu >= 72 &&
2228                                  test_bit(BTUSB_USE_ALT3_FOR_WBS, &data->flags))
2229                                 new_alts = 3;
2230                         else
2231                                 new_alts = 1;
2232                 }
2233
2234                 if (btusb_switch_alt_setting(hdev, new_alts) < 0)
2235                         bt_dev_err(hdev, "set USB alt:(%d) failed!", new_alts);
2236         } else {
2237                 usb_kill_anchored_urbs(&data->isoc_anchor);
2238
2239                 if (test_and_clear_bit(BTUSB_ISOC_RUNNING, &data->flags))
2240                         __set_isoc_interface(hdev, 0);
2241
2242                 if (test_and_clear_bit(BTUSB_DID_ISO_RESUME, &data->flags))
2243                         usb_autopm_put_interface(data->isoc ? data->isoc : data->intf);
2244         }
2245 }
2246
2247 static void btusb_waker(struct work_struct *work)
2248 {
2249         struct btusb_data *data = container_of(work, struct btusb_data, waker);
2250         int err;
2251
2252         err = usb_autopm_get_interface(data->intf);
2253         if (err < 0)
2254                 return;
2255
2256         usb_autopm_put_interface(data->intf);
2257 }
2258
2259 static void btusb_rx_work(struct work_struct *work)
2260 {
2261         struct btusb_data *data = container_of(work, struct btusb_data,
2262                                                rx_work.work);
2263         struct sk_buff *skb;
2264
2265         /* Dequeue ACL data received during the interval */
2266         while ((skb = skb_dequeue(&data->acl_q)))
2267                 data->recv_acl(data->hdev, skb);
2268 }
2269
2270 static int btusb_setup_bcm92035(struct hci_dev *hdev)
2271 {
2272         struct sk_buff *skb;
2273         u8 val = 0x00;
2274
2275         BT_DBG("%s", hdev->name);
2276
2277         skb = __hci_cmd_sync(hdev, 0xfc3b, 1, &val, HCI_INIT_TIMEOUT);
2278         if (IS_ERR(skb))
2279                 bt_dev_err(hdev, "BCM92035 command failed (%ld)", PTR_ERR(skb));
2280         else
2281                 kfree_skb(skb);
2282
2283         return 0;
2284 }
2285
2286 static int btusb_setup_csr(struct hci_dev *hdev)
2287 {
2288         struct btusb_data *data = hci_get_drvdata(hdev);
2289         u16 bcdDevice = le16_to_cpu(data->udev->descriptor.bcdDevice);
2290         struct hci_rp_read_local_version *rp;
2291         struct sk_buff *skb;
2292         bool is_fake = false;
2293         int ret;
2294
2295         BT_DBG("%s", hdev->name);
2296
2297         skb = __hci_cmd_sync(hdev, HCI_OP_READ_LOCAL_VERSION, 0, NULL,
2298                              HCI_INIT_TIMEOUT);
2299         if (IS_ERR(skb)) {
2300                 int err = PTR_ERR(skb);
2301                 bt_dev_err(hdev, "CSR: Local version failed (%d)", err);
2302                 return err;
2303         }
2304
2305         rp = skb_pull_data(skb, sizeof(*rp));
2306         if (!rp) {
2307                 bt_dev_err(hdev, "CSR: Local version length mismatch");
2308                 kfree_skb(skb);
2309                 return -EIO;
2310         }
2311
2312         bt_dev_info(hdev, "CSR: Setting up dongle with HCI ver=%u rev=%04x",
2313                     rp->hci_ver, le16_to_cpu(rp->hci_rev));
2314
2315         bt_dev_info(hdev, "LMP ver=%u subver=%04x; manufacturer=%u",
2316                     rp->lmp_ver, le16_to_cpu(rp->lmp_subver),
2317                     le16_to_cpu(rp->manufacturer));
2318
2319         /* Detect a wide host of Chinese controllers that aren't CSR.
2320          *
2321          * Known fake bcdDevices: 0x0100, 0x0134, 0x1915, 0x2520, 0x7558, 0x8891
2322          *
2323          * The main thing they have in common is that these are really popular low-cost
2324          * options that support newer Bluetooth versions but rely on heavy VID/PID
2325          * squatting of this poor old Bluetooth 1.1 device. Even sold as such.
2326          *
2327          * We detect actual CSR devices by checking that the HCI manufacturer code
2328          * is Cambridge Silicon Radio (10) and ensuring that LMP sub-version and
2329          * HCI rev values always match. As they both store the firmware number.
2330          */
2331         if (le16_to_cpu(rp->manufacturer) != 10 ||
2332             le16_to_cpu(rp->hci_rev) != le16_to_cpu(rp->lmp_subver))
2333                 is_fake = true;
2334
2335         /* Known legit CSR firmware build numbers and their supported BT versions:
2336          * - 1.1 (0x1) -> 0x0073, 0x020d, 0x033c, 0x034e
2337          * - 1.2 (0x2) ->                 0x04d9, 0x0529
2338          * - 2.0 (0x3) ->         0x07a6, 0x07ad, 0x0c5c
2339          * - 2.1 (0x4) ->         0x149c, 0x1735, 0x1899 (0x1899 is a BlueCore4-External)
2340          * - 4.0 (0x6) ->         0x1d86, 0x2031, 0x22bb
2341          *
2342          * e.g. Real CSR dongles with LMP subversion 0x73 are old enough that
2343          *      support BT 1.1 only; so it's a dead giveaway when some
2344          *      third-party BT 4.0 dongle reuses it.
2345          */
2346         else if (le16_to_cpu(rp->lmp_subver) <= 0x034e &&
2347                  rp->hci_ver > BLUETOOTH_VER_1_1)
2348                 is_fake = true;
2349
2350         else if (le16_to_cpu(rp->lmp_subver) <= 0x0529 &&
2351                  rp->hci_ver > BLUETOOTH_VER_1_2)
2352                 is_fake = true;
2353
2354         else if (le16_to_cpu(rp->lmp_subver) <= 0x0c5c &&
2355                  rp->hci_ver > BLUETOOTH_VER_2_0)
2356                 is_fake = true;
2357
2358         else if (le16_to_cpu(rp->lmp_subver) <= 0x1899 &&
2359                  rp->hci_ver > BLUETOOTH_VER_2_1)
2360                 is_fake = true;
2361
2362         else if (le16_to_cpu(rp->lmp_subver) <= 0x22bb &&
2363                  rp->hci_ver > BLUETOOTH_VER_4_0)
2364                 is_fake = true;
2365
2366         /* Other clones which beat all the above checks */
2367         else if (bcdDevice == 0x0134 &&
2368                  le16_to_cpu(rp->lmp_subver) == 0x0c5c &&
2369                  rp->hci_ver == BLUETOOTH_VER_2_0)
2370                 is_fake = true;
2371
2372         if (is_fake) {
2373                 bt_dev_warn(hdev, "CSR: Unbranded CSR clone detected; adding workarounds and force-suspending once...");
2374
2375                 /* Generally these clones have big discrepancies between
2376                  * advertised features and what's actually supported.
2377                  * Probably will need to be expanded in the future;
2378                  * without these the controller will lock up.
2379                  */
2380                 set_bit(HCI_QUIRK_BROKEN_STORED_LINK_KEY, &hdev->quirks);
2381                 set_bit(HCI_QUIRK_BROKEN_ERR_DATA_REPORTING, &hdev->quirks);
2382                 set_bit(HCI_QUIRK_BROKEN_FILTER_CLEAR_ALL, &hdev->quirks);
2383                 set_bit(HCI_QUIRK_NO_SUSPEND_NOTIFIER, &hdev->quirks);
2384
2385                 /* Clear the reset quirk since this is not an actual
2386                  * early Bluetooth 1.1 device from CSR.
2387                  */
2388                 clear_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
2389                 clear_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks);
2390
2391                 /*
2392                  * Special workaround for these BT 4.0 chip clones, and potentially more:
2393                  *
2394                  * - 0x0134: a Barrot 8041a02                 (HCI rev: 0x0810 sub: 0x1012)
2395                  * - 0x7558: IC markings FR3191AHAL 749H15143 (HCI rev/sub-version: 0x0709)
2396                  *
2397                  * These controllers are really messed-up.
2398                  *
2399                  * 1. Their bulk RX endpoint will never report any data unless
2400                  *    the device was suspended at least once (yes, really).
2401                  * 2. They will not wakeup when autosuspended and receiving data
2402                  *    on their bulk RX endpoint from e.g. a keyboard or mouse
2403                  *    (IOW remote-wakeup support is broken for the bulk endpoint).
2404                  *
2405                  * To fix 1. enable runtime-suspend, force-suspend the
2406                  * HCI and then wake-it up by disabling runtime-suspend.
2407                  *
2408                  * To fix 2. clear the HCI's can_wake flag, this way the HCI
2409                  * will still be autosuspended when it is not open.
2410                  *
2411                  * --
2412                  *
2413                  * Because these are widespread problems we prefer generic solutions; so
2414                  * apply this initialization quirk to every controller that gets here,
2415                  * it should be harmless. The alternative is to not work at all.
2416                  */
2417                 pm_runtime_allow(&data->udev->dev);
2418
2419                 ret = pm_runtime_suspend(&data->udev->dev);
2420                 if (ret >= 0)
2421                         msleep(200);
2422                 else
2423                         bt_dev_warn(hdev, "CSR: Couldn't suspend the device for our Barrot 8041a02 receive-issue workaround");
2424
2425                 pm_runtime_forbid(&data->udev->dev);
2426
2427                 device_set_wakeup_capable(&data->udev->dev, false);
2428
2429                 /* Re-enable autosuspend if this was requested */
2430                 if (enable_autosuspend)
2431                         usb_enable_autosuspend(data->udev);
2432         }
2433
2434         kfree_skb(skb);
2435
2436         return 0;
2437 }
2438
2439 static int inject_cmd_complete(struct hci_dev *hdev, __u16 opcode)
2440 {
2441         struct sk_buff *skb;
2442         struct hci_event_hdr *hdr;
2443         struct hci_ev_cmd_complete *evt;
2444
2445         skb = bt_skb_alloc(sizeof(*hdr) + sizeof(*evt) + 1, GFP_KERNEL);
2446         if (!skb)
2447                 return -ENOMEM;
2448
2449         hdr = skb_put(skb, sizeof(*hdr));
2450         hdr->evt = HCI_EV_CMD_COMPLETE;
2451         hdr->plen = sizeof(*evt) + 1;
2452
2453         evt = skb_put(skb, sizeof(*evt));
2454         evt->ncmd = 0x01;
2455         evt->opcode = cpu_to_le16(opcode);
2456
2457         skb_put_u8(skb, 0x00);
2458
2459         hci_skb_pkt_type(skb) = HCI_EVENT_PKT;
2460
2461         return hci_recv_frame(hdev, skb);
2462 }
2463
2464 static int btusb_recv_bulk_intel(struct btusb_data *data, void *buffer,
2465                                  int count)
2466 {
2467         struct hci_dev *hdev = data->hdev;
2468
2469         /* When the device is in bootloader mode, then it can send
2470          * events via the bulk endpoint. These events are treated the
2471          * same way as the ones received from the interrupt endpoint.
2472          */
2473         if (btintel_test_flag(hdev, INTEL_BOOTLOADER))
2474                 return btusb_recv_intr(data, buffer, count);
2475
2476         return btusb_recv_bulk(data, buffer, count);
2477 }
2478
2479 static int btusb_intel_diagnostics(struct hci_dev *hdev, struct sk_buff *skb)
2480 {
2481         struct intel_tlv *tlv = (void *)&skb->data[5];
2482
2483         /* The first event is always an event type TLV */
2484         if (tlv->type != INTEL_TLV_TYPE_ID)
2485                 goto recv_frame;
2486
2487         switch (tlv->val[0]) {
2488         case INTEL_TLV_SYSTEM_EXCEPTION:
2489         case INTEL_TLV_FATAL_EXCEPTION:
2490         case INTEL_TLV_DEBUG_EXCEPTION:
2491         case INTEL_TLV_TEST_EXCEPTION:
2492                 /* Generate devcoredump from exception */
2493                 if (!hci_devcd_init(hdev, skb->len)) {
2494                         hci_devcd_append(hdev, skb);
2495                         hci_devcd_complete(hdev);
2496                 } else {
2497                         bt_dev_err(hdev, "Failed to generate devcoredump");
2498                         kfree_skb(skb);
2499                 }
2500                 return 0;
2501         default:
2502                 bt_dev_err(hdev, "Invalid exception type %02X", tlv->val[0]);
2503         }
2504
2505 recv_frame:
2506         return hci_recv_frame(hdev, skb);
2507 }
2508
2509 static int btusb_recv_event_intel(struct hci_dev *hdev, struct sk_buff *skb)
2510 {
2511         struct hci_event_hdr *hdr = (void *)skb->data;
2512         const char diagnostics_hdr[] = { 0x87, 0x80, 0x03 };
2513
2514         if (skb->len > HCI_EVENT_HDR_SIZE && hdr->evt == 0xff &&
2515             hdr->plen > 0) {
2516                 const void *ptr = skb->data + HCI_EVENT_HDR_SIZE + 1;
2517                 unsigned int len = skb->len - HCI_EVENT_HDR_SIZE - 1;
2518
2519                 if (btintel_test_flag(hdev, INTEL_BOOTLOADER)) {
2520                         switch (skb->data[2]) {
2521                         case 0x02:
2522                                 /* When switching to the operational firmware
2523                                  * the device sends a vendor specific event
2524                                  * indicating that the bootup completed.
2525                                  */
2526                                 btintel_bootup(hdev, ptr, len);
2527                                 break;
2528                         case 0x06:
2529                                 /* When the firmware loading completes the
2530                                  * device sends out a vendor specific event
2531                                  * indicating the result of the firmware
2532                                  * loading.
2533                                  */
2534                                 btintel_secure_send_result(hdev, ptr, len);
2535                                 break;
2536                         }
2537                 }
2538
2539                 /* Handle all diagnostics events separately. May still call
2540                  * hci_recv_frame.
2541                  */
2542                 if (len >= sizeof(diagnostics_hdr) &&
2543                     memcmp(&skb->data[2], diagnostics_hdr,
2544                            sizeof(diagnostics_hdr)) == 0) {
2545                         return btusb_intel_diagnostics(hdev, skb);
2546                 }
2547         }
2548
2549         return hci_recv_frame(hdev, skb);
2550 }
2551
2552 static int btusb_send_frame_intel(struct hci_dev *hdev, struct sk_buff *skb)
2553 {
2554         struct urb *urb;
2555
2556         BT_DBG("%s", hdev->name);
2557
2558         switch (hci_skb_pkt_type(skb)) {
2559         case HCI_COMMAND_PKT:
2560                 if (btintel_test_flag(hdev, INTEL_BOOTLOADER)) {
2561                         struct hci_command_hdr *cmd = (void *)skb->data;
2562                         __u16 opcode = le16_to_cpu(cmd->opcode);
2563
2564                         /* When in bootloader mode and the command 0xfc09
2565                          * is received, it needs to be send down the
2566                          * bulk endpoint. So allocate a bulk URB instead.
2567                          */
2568                         if (opcode == 0xfc09)
2569                                 urb = alloc_bulk_urb(hdev, skb);
2570                         else
2571                                 urb = alloc_ctrl_urb(hdev, skb);
2572
2573                         /* When the 0xfc01 command is issued to boot into
2574                          * the operational firmware, it will actually not
2575                          * send a command complete event. To keep the flow
2576                          * control working inject that event here.
2577                          */
2578                         if (opcode == 0xfc01)
2579                                 inject_cmd_complete(hdev, opcode);
2580                 } else {
2581                         urb = alloc_ctrl_urb(hdev, skb);
2582                 }
2583                 if (IS_ERR(urb))
2584                         return PTR_ERR(urb);
2585
2586                 hdev->stat.cmd_tx++;
2587                 return submit_or_queue_tx_urb(hdev, urb);
2588
2589         case HCI_ACLDATA_PKT:
2590                 urb = alloc_bulk_urb(hdev, skb);
2591                 if (IS_ERR(urb))
2592                         return PTR_ERR(urb);
2593
2594                 hdev->stat.acl_tx++;
2595                 return submit_or_queue_tx_urb(hdev, urb);
2596
2597         case HCI_SCODATA_PKT:
2598                 if (hci_conn_num(hdev, SCO_LINK) < 1)
2599                         return -ENODEV;
2600
2601                 urb = alloc_isoc_urb(hdev, skb);
2602                 if (IS_ERR(urb))
2603                         return PTR_ERR(urb);
2604
2605                 hdev->stat.sco_tx++;
2606                 return submit_tx_urb(hdev, urb);
2607
2608         case HCI_ISODATA_PKT:
2609                 urb = alloc_bulk_urb(hdev, skb);
2610                 if (IS_ERR(urb))
2611                         return PTR_ERR(urb);
2612
2613                 return submit_or_queue_tx_urb(hdev, urb);
2614         }
2615
2616         return -EILSEQ;
2617 }
2618
2619 static int btusb_setup_realtek(struct hci_dev *hdev)
2620 {
2621         struct btusb_data *data = hci_get_drvdata(hdev);
2622         int ret;
2623
2624         ret = btrtl_setup_realtek(hdev);
2625
2626         if (btrealtek_test_flag(data->hdev, REALTEK_ALT6_CONTINUOUS_TX_CHIP))
2627                 set_bit(BTUSB_ALT6_CONTINUOUS_TX, &data->flags);
2628
2629         return ret;
2630 }
2631
2632 static int btusb_recv_event_realtek(struct hci_dev *hdev, struct sk_buff *skb)
2633 {
2634         if (skb->data[0] == HCI_VENDOR_PKT && skb->data[2] == RTK_SUB_EVENT_CODE_COREDUMP) {
2635                 struct rtk_dev_coredump_hdr hdr = {
2636                         .code = RTK_DEVCOREDUMP_CODE_MEMDUMP,
2637                 };
2638
2639                 bt_dev_dbg(hdev, "RTL: received coredump vendor evt, len %u",
2640                         skb->len);
2641
2642                 btusb_rtl_alloc_devcoredump(hdev, &hdr, skb->data, skb->len);
2643                 kfree_skb(skb);
2644
2645                 return 0;
2646         }
2647
2648         return hci_recv_frame(hdev, skb);
2649 }
2650
2651 /* UHW CR mapping */
2652 #define MTK_BT_MISC             0x70002510
2653 #define MTK_BT_SUBSYS_RST       0x70002610
2654 #define MTK_UDMA_INT_STA_BT     0x74000024
2655 #define MTK_UDMA_INT_STA_BT1    0x74000308
2656 #define MTK_BT_WDT_STATUS       0x740003A0
2657 #define MTK_EP_RST_OPT          0x74011890
2658 #define MTK_EP_RST_IN_OUT_OPT   0x00010001
2659 #define MTK_BT_RST_DONE         0x00000100
2660 #define MTK_BT_RESET_REG_CONNV3 0x70028610
2661 #define MTK_BT_READ_DEV_ID      0x70010200
2662
2663
2664 static void btusb_mtk_wmt_recv(struct urb *urb)
2665 {
2666         struct hci_dev *hdev = urb->context;
2667         struct btusb_data *data = hci_get_drvdata(hdev);
2668         struct sk_buff *skb;
2669         int err;
2670
2671         if (urb->status == 0 && urb->actual_length > 0) {
2672                 hdev->stat.byte_rx += urb->actual_length;
2673
2674                 /* WMT event shouldn't be fragmented and the size should be
2675                  * less than HCI_WMT_MAX_EVENT_SIZE.
2676                  */
2677                 skb = bt_skb_alloc(HCI_WMT_MAX_EVENT_SIZE, GFP_ATOMIC);
2678                 if (!skb) {
2679                         hdev->stat.err_rx++;
2680                         kfree(urb->setup_packet);
2681                         return;
2682                 }
2683
2684                 hci_skb_pkt_type(skb) = HCI_EVENT_PKT;
2685                 skb_put_data(skb, urb->transfer_buffer, urb->actual_length);
2686
2687                 /* When someone waits for the WMT event, the skb is being cloned
2688                  * and being processed the events from there then.
2689                  */
2690                 if (test_bit(BTUSB_TX_WAIT_VND_EVT, &data->flags)) {
2691                         data->evt_skb = skb_clone(skb, GFP_ATOMIC);
2692                         if (!data->evt_skb) {
2693                                 kfree_skb(skb);
2694                                 kfree(urb->setup_packet);
2695                                 return;
2696                         }
2697                 }
2698
2699                 err = hci_recv_frame(hdev, skb);
2700                 if (err < 0) {
2701                         kfree_skb(data->evt_skb);
2702                         data->evt_skb = NULL;
2703                         kfree(urb->setup_packet);
2704                         return;
2705                 }
2706
2707                 if (test_and_clear_bit(BTUSB_TX_WAIT_VND_EVT,
2708                                        &data->flags)) {
2709                         /* Barrier to sync with other CPUs */
2710                         smp_mb__after_atomic();
2711                         wake_up_bit(&data->flags,
2712                                     BTUSB_TX_WAIT_VND_EVT);
2713                 }
2714                 kfree(urb->setup_packet);
2715                 return;
2716         } else if (urb->status == -ENOENT) {
2717                 /* Avoid suspend failed when usb_kill_urb */
2718                 return;
2719         }
2720
2721         usb_mark_last_busy(data->udev);
2722
2723         /* The URB complete handler is still called with urb->actual_length = 0
2724          * when the event is not available, so we should keep re-submitting
2725          * URB until WMT event returns, Also, It's necessary to wait some time
2726          * between the two consecutive control URBs to relax the target device
2727          * to generate the event. Otherwise, the WMT event cannot return from
2728          * the device successfully.
2729          */
2730         udelay(500);
2731
2732         usb_anchor_urb(urb, &data->ctrl_anchor);
2733         err = usb_submit_urb(urb, GFP_ATOMIC);
2734         if (err < 0) {
2735                 kfree(urb->setup_packet);
2736                 /* -EPERM: urb is being killed;
2737                  * -ENODEV: device got disconnected
2738                  */
2739                 if (err != -EPERM && err != -ENODEV)
2740                         bt_dev_err(hdev, "urb %p failed to resubmit (%d)",
2741                                    urb, -err);
2742                 usb_unanchor_urb(urb);
2743         }
2744 }
2745
2746 static int btusb_mtk_submit_wmt_recv_urb(struct hci_dev *hdev)
2747 {
2748         struct btusb_data *data = hci_get_drvdata(hdev);
2749         struct usb_ctrlrequest *dr;
2750         unsigned char *buf;
2751         int err, size = 64;
2752         unsigned int pipe;
2753         struct urb *urb;
2754
2755         urb = usb_alloc_urb(0, GFP_KERNEL);
2756         if (!urb)
2757                 return -ENOMEM;
2758
2759         dr = kmalloc(sizeof(*dr), GFP_KERNEL);
2760         if (!dr) {
2761                 usb_free_urb(urb);
2762                 return -ENOMEM;
2763         }
2764
2765         dr->bRequestType = USB_TYPE_VENDOR | USB_DIR_IN;
2766         dr->bRequest     = 1;
2767         dr->wIndex       = cpu_to_le16(0);
2768         dr->wValue       = cpu_to_le16(48);
2769         dr->wLength      = cpu_to_le16(size);
2770
2771         buf = kmalloc(size, GFP_KERNEL);
2772         if (!buf) {
2773                 kfree(dr);
2774                 usb_free_urb(urb);
2775                 return -ENOMEM;
2776         }
2777
2778         pipe = usb_rcvctrlpipe(data->udev, 0);
2779
2780         usb_fill_control_urb(urb, data->udev, pipe, (void *)dr,
2781                              buf, size, btusb_mtk_wmt_recv, hdev);
2782
2783         urb->transfer_flags |= URB_FREE_BUFFER;
2784
2785         usb_anchor_urb(urb, &data->ctrl_anchor);
2786         err = usb_submit_urb(urb, GFP_KERNEL);
2787         if (err < 0) {
2788                 if (err != -EPERM && err != -ENODEV)
2789                         bt_dev_err(hdev, "urb %p submission failed (%d)",
2790                                    urb, -err);
2791                 usb_unanchor_urb(urb);
2792         }
2793
2794         usb_free_urb(urb);
2795
2796         return err;
2797 }
2798
2799 static int btusb_mtk_hci_wmt_sync(struct hci_dev *hdev,
2800                                   struct btmtk_hci_wmt_params *wmt_params)
2801 {
2802         struct btusb_data *data = hci_get_drvdata(hdev);
2803         struct btmtk_hci_wmt_evt_funcc *wmt_evt_funcc;
2804         u32 hlen, status = BTMTK_WMT_INVALID;
2805         struct btmtk_hci_wmt_evt *wmt_evt;
2806         struct btmtk_hci_wmt_cmd *wc;
2807         struct btmtk_wmt_hdr *hdr;
2808         int err;
2809
2810         /* Send the WMT command and wait until the WMT event returns */
2811         hlen = sizeof(*hdr) + wmt_params->dlen;
2812         if (hlen > 255)
2813                 return -EINVAL;
2814
2815         wc = kzalloc(hlen, GFP_KERNEL);
2816         if (!wc)
2817                 return -ENOMEM;
2818
2819         hdr = &wc->hdr;
2820         hdr->dir = 1;
2821         hdr->op = wmt_params->op;
2822         hdr->dlen = cpu_to_le16(wmt_params->dlen + 1);
2823         hdr->flag = wmt_params->flag;
2824         memcpy(wc->data, wmt_params->data, wmt_params->dlen);
2825
2826         set_bit(BTUSB_TX_WAIT_VND_EVT, &data->flags);
2827
2828         /* WMT cmd/event doesn't follow up the generic HCI cmd/event handling,
2829          * it needs constantly polling control pipe until the host received the
2830          * WMT event, thus, we should require to specifically acquire PM counter
2831          * on the USB to prevent the interface from entering auto suspended
2832          * while WMT cmd/event in progress.
2833          */
2834         err = usb_autopm_get_interface(data->intf);
2835         if (err < 0)
2836                 goto err_free_wc;
2837
2838         err = __hci_cmd_send(hdev, 0xfc6f, hlen, wc);
2839
2840         if (err < 0) {
2841                 clear_bit(BTUSB_TX_WAIT_VND_EVT, &data->flags);
2842                 usb_autopm_put_interface(data->intf);
2843                 goto err_free_wc;
2844         }
2845
2846         /* Submit control IN URB on demand to process the WMT event */
2847         err = btusb_mtk_submit_wmt_recv_urb(hdev);
2848
2849         usb_autopm_put_interface(data->intf);
2850
2851         if (err < 0)
2852                 goto err_free_wc;
2853
2854         /* The vendor specific WMT commands are all answered by a vendor
2855          * specific event and will have the Command Status or Command
2856          * Complete as with usual HCI command flow control.
2857          *
2858          * After sending the command, wait for BTUSB_TX_WAIT_VND_EVT
2859          * state to be cleared. The driver specific event receive routine
2860          * will clear that state and with that indicate completion of the
2861          * WMT command.
2862          */
2863         err = wait_on_bit_timeout(&data->flags, BTUSB_TX_WAIT_VND_EVT,
2864                                   TASK_INTERRUPTIBLE, HCI_INIT_TIMEOUT);
2865         if (err == -EINTR) {
2866                 bt_dev_err(hdev, "Execution of wmt command interrupted");
2867                 clear_bit(BTUSB_TX_WAIT_VND_EVT, &data->flags);
2868                 goto err_free_wc;
2869         }
2870
2871         if (err) {
2872                 bt_dev_err(hdev, "Execution of wmt command timed out");
2873                 clear_bit(BTUSB_TX_WAIT_VND_EVT, &data->flags);
2874                 err = -ETIMEDOUT;
2875                 goto err_free_wc;
2876         }
2877
2878         /* Parse and handle the return WMT event */
2879         wmt_evt = (struct btmtk_hci_wmt_evt *)data->evt_skb->data;
2880         if (wmt_evt->whdr.op != hdr->op) {
2881                 bt_dev_err(hdev, "Wrong op received %d expected %d",
2882                            wmt_evt->whdr.op, hdr->op);
2883                 err = -EIO;
2884                 goto err_free_skb;
2885         }
2886
2887         switch (wmt_evt->whdr.op) {
2888         case BTMTK_WMT_SEMAPHORE:
2889                 if (wmt_evt->whdr.flag == 2)
2890                         status = BTMTK_WMT_PATCH_UNDONE;
2891                 else
2892                         status = BTMTK_WMT_PATCH_DONE;
2893                 break;
2894         case BTMTK_WMT_FUNC_CTRL:
2895                 wmt_evt_funcc = (struct btmtk_hci_wmt_evt_funcc *)wmt_evt;
2896                 if (be16_to_cpu(wmt_evt_funcc->status) == 0x404)
2897                         status = BTMTK_WMT_ON_DONE;
2898                 else if (be16_to_cpu(wmt_evt_funcc->status) == 0x420)
2899                         status = BTMTK_WMT_ON_PROGRESS;
2900                 else
2901                         status = BTMTK_WMT_ON_UNDONE;
2902                 break;
2903         case BTMTK_WMT_PATCH_DWNLD:
2904                 if (wmt_evt->whdr.flag == 2)
2905                         status = BTMTK_WMT_PATCH_DONE;
2906                 else if (wmt_evt->whdr.flag == 1)
2907                         status = BTMTK_WMT_PATCH_PROGRESS;
2908                 else
2909                         status = BTMTK_WMT_PATCH_UNDONE;
2910                 break;
2911         }
2912
2913         if (wmt_params->status)
2914                 *wmt_params->status = status;
2915
2916 err_free_skb:
2917         kfree_skb(data->evt_skb);
2918         data->evt_skb = NULL;
2919 err_free_wc:
2920         kfree(wc);
2921         return err;
2922 }
2923
2924 static int btusb_mtk_func_query(struct hci_dev *hdev)
2925 {
2926         struct btmtk_hci_wmt_params wmt_params;
2927         int status, err;
2928         u8 param = 0;
2929
2930         /* Query whether the function is enabled */
2931         wmt_params.op = BTMTK_WMT_FUNC_CTRL;
2932         wmt_params.flag = 4;
2933         wmt_params.dlen = sizeof(param);
2934         wmt_params.data = &param;
2935         wmt_params.status = &status;
2936
2937         err = btusb_mtk_hci_wmt_sync(hdev, &wmt_params);
2938         if (err < 0) {
2939                 bt_dev_err(hdev, "Failed to query function status (%d)", err);
2940                 return err;
2941         }
2942
2943         return status;
2944 }
2945
2946 static int btusb_mtk_uhw_reg_write(struct btusb_data *data, u32 reg, u32 val)
2947 {
2948         struct hci_dev *hdev = data->hdev;
2949         int pipe, err;
2950         void *buf;
2951
2952         buf = kzalloc(4, GFP_KERNEL);
2953         if (!buf)
2954                 return -ENOMEM;
2955
2956         put_unaligned_le32(val, buf);
2957
2958         pipe = usb_sndctrlpipe(data->udev, 0);
2959         err = usb_control_msg(data->udev, pipe, 0x02,
2960                               0x5E,
2961                               reg >> 16, reg & 0xffff,
2962                               buf, 4, USB_CTRL_SET_TIMEOUT);
2963         if (err < 0) {
2964                 bt_dev_err(hdev, "Failed to write uhw reg(%d)", err);
2965                 goto err_free_buf;
2966         }
2967
2968 err_free_buf:
2969         kfree(buf);
2970
2971         return err;
2972 }
2973
2974 static int btusb_mtk_uhw_reg_read(struct btusb_data *data, u32 reg, u32 *val)
2975 {
2976         struct hci_dev *hdev = data->hdev;
2977         int pipe, err;
2978         void *buf;
2979
2980         buf = kzalloc(4, GFP_KERNEL);
2981         if (!buf)
2982                 return -ENOMEM;
2983
2984         pipe = usb_rcvctrlpipe(data->udev, 0);
2985         err = usb_control_msg(data->udev, pipe, 0x01,
2986                               0xDE,
2987                               reg >> 16, reg & 0xffff,
2988                               buf, 4, USB_CTRL_SET_TIMEOUT);
2989         if (err < 0) {
2990                 bt_dev_err(hdev, "Failed to read uhw reg(%d)", err);
2991                 goto err_free_buf;
2992         }
2993
2994         *val = get_unaligned_le32(buf);
2995         bt_dev_dbg(hdev, "reg=%x, value=0x%08x", reg, *val);
2996
2997 err_free_buf:
2998         kfree(buf);
2999
3000         return err;
3001 }
3002
3003 static int btusb_mtk_reg_read(struct btusb_data *data, u32 reg, u32 *val)
3004 {
3005         int pipe, err, size = sizeof(u32);
3006         void *buf;
3007
3008         buf = kzalloc(size, GFP_KERNEL);
3009         if (!buf)
3010                 return -ENOMEM;
3011
3012         pipe = usb_rcvctrlpipe(data->udev, 0);
3013         err = usb_control_msg(data->udev, pipe, 0x63,
3014                               USB_TYPE_VENDOR | USB_DIR_IN,
3015                               reg >> 16, reg & 0xffff,
3016                               buf, size, USB_CTRL_SET_TIMEOUT);
3017         if (err < 0)
3018                 goto err_free_buf;
3019
3020         *val = get_unaligned_le32(buf);
3021
3022 err_free_buf:
3023         kfree(buf);
3024
3025         return err;
3026 }
3027
3028 static int btusb_mtk_id_get(struct btusb_data *data, u32 reg, u32 *id)
3029 {
3030         return btusb_mtk_reg_read(data, reg, id);
3031 }
3032
3033 static u32 btusb_mtk_reset_done(struct hci_dev *hdev)
3034 {
3035         struct btusb_data *data = hci_get_drvdata(hdev);
3036         u32 val = 0;
3037
3038         btusb_mtk_uhw_reg_read(data, MTK_BT_MISC, &val);
3039
3040         return val & MTK_BT_RST_DONE;
3041 }
3042
3043 static int btusb_mtk_setup(struct hci_dev *hdev)
3044 {
3045         struct btusb_data *data = hci_get_drvdata(hdev);
3046         struct btmtk_hci_wmt_params wmt_params;
3047         ktime_t calltime, delta, rettime;
3048         struct btmtk_tci_sleep tci_sleep;
3049         unsigned long long duration;
3050         struct sk_buff *skb;
3051         const char *fwname;
3052         int err, status;
3053         u32 dev_id = 0;
3054         char fw_bin_name[64];
3055         u32 fw_version = 0;
3056         u8 param;
3057         struct btmediatek_data *mediatek;
3058
3059         calltime = ktime_get();
3060
3061         err = btusb_mtk_id_get(data, 0x80000008, &dev_id);
3062         if (err < 0) {
3063                 bt_dev_err(hdev, "Failed to get device id (%d)", err);
3064                 return err;
3065         }
3066
3067         if (!dev_id || dev_id != 0x7663) {
3068                 err = btusb_mtk_id_get(data, 0x70010200, &dev_id);
3069                 if (err < 0) {
3070                         bt_dev_err(hdev, "Failed to get device id (%d)", err);
3071                         return err;
3072                 }
3073                 err = btusb_mtk_id_get(data, 0x80021004, &fw_version);
3074                 if (err < 0) {
3075                         bt_dev_err(hdev, "Failed to get fw version (%d)", err);
3076                         return err;
3077                 }
3078         }
3079
3080         mediatek = hci_get_priv(hdev);
3081         mediatek->dev_id = dev_id;
3082
3083         switch (dev_id) {
3084         case 0x7663:
3085                 fwname = FIRMWARE_MT7663;
3086                 break;
3087         case 0x7668:
3088                 fwname = FIRMWARE_MT7668;
3089                 break;
3090         case 0x7922:
3091         case 0x7961:
3092         case 0x7925:
3093                 if (dev_id == 0x7925)
3094                         snprintf(fw_bin_name, sizeof(fw_bin_name),
3095                                  "mediatek/mt%04x/BT_RAM_CODE_MT%04x_1_%x_hdr.bin",
3096                                  dev_id & 0xffff, dev_id & 0xffff, (fw_version & 0xff) + 1);
3097                 else
3098                         snprintf(fw_bin_name, sizeof(fw_bin_name),
3099                                  "mediatek/BT_RAM_CODE_MT%04x_1_%x_hdr.bin",
3100                                  dev_id & 0xffff, (fw_version & 0xff) + 1);
3101
3102                 err = btmtk_setup_firmware_79xx(hdev, fw_bin_name,
3103                                                 btusb_mtk_hci_wmt_sync);
3104                 if (err < 0) {
3105                         bt_dev_err(hdev, "Failed to set up firmware (%d)", err);
3106                         return err;
3107                 }
3108
3109                 /* It's Device EndPoint Reset Option Register */
3110                 btusb_mtk_uhw_reg_write(data, MTK_EP_RST_OPT, MTK_EP_RST_IN_OUT_OPT);
3111
3112                 /* Enable Bluetooth protocol */
3113                 param = 1;
3114                 wmt_params.op = BTMTK_WMT_FUNC_CTRL;
3115                 wmt_params.flag = 0;
3116                 wmt_params.dlen = sizeof(param);
3117                 wmt_params.data = &param;
3118                 wmt_params.status = NULL;
3119
3120                 err = btusb_mtk_hci_wmt_sync(hdev, &wmt_params);
3121                 if (err < 0) {
3122                         bt_dev_err(hdev, "Failed to send wmt func ctrl (%d)", err);
3123                         return err;
3124                 }
3125
3126                 hci_set_msft_opcode(hdev, 0xFD30);
3127                 hci_set_aosp_capable(hdev);
3128                 goto done;
3129         default:
3130                 bt_dev_err(hdev, "Unsupported hardware variant (%08x)",
3131                            dev_id);
3132                 return -ENODEV;
3133         }
3134
3135         /* Query whether the firmware is already download */
3136         wmt_params.op = BTMTK_WMT_SEMAPHORE;
3137         wmt_params.flag = 1;
3138         wmt_params.dlen = 0;
3139         wmt_params.data = NULL;
3140         wmt_params.status = &status;
3141
3142         err = btusb_mtk_hci_wmt_sync(hdev, &wmt_params);
3143         if (err < 0) {
3144                 bt_dev_err(hdev, "Failed to query firmware status (%d)", err);
3145                 return err;
3146         }
3147
3148         if (status == BTMTK_WMT_PATCH_DONE) {
3149                 bt_dev_info(hdev, "firmware already downloaded");
3150                 goto ignore_setup_fw;
3151         }
3152
3153         /* Setup a firmware which the device definitely requires */
3154         err = btmtk_setup_firmware(hdev, fwname,
3155                                    btusb_mtk_hci_wmt_sync);
3156         if (err < 0)
3157                 return err;
3158
3159 ignore_setup_fw:
3160         err = readx_poll_timeout(btusb_mtk_func_query, hdev, status,
3161                                  status < 0 || status != BTMTK_WMT_ON_PROGRESS,
3162                                  2000, 5000000);
3163         /* -ETIMEDOUT happens */
3164         if (err < 0)
3165                 return err;
3166
3167         /* The other errors happen in btusb_mtk_func_query */
3168         if (status < 0)
3169                 return status;
3170
3171         if (status == BTMTK_WMT_ON_DONE) {
3172                 bt_dev_info(hdev, "function already on");
3173                 goto ignore_func_on;
3174         }
3175
3176         /* Enable Bluetooth protocol */
3177         param = 1;
3178         wmt_params.op = BTMTK_WMT_FUNC_CTRL;
3179         wmt_params.flag = 0;
3180         wmt_params.dlen = sizeof(param);
3181         wmt_params.data = &param;
3182         wmt_params.status = NULL;
3183
3184         err = btusb_mtk_hci_wmt_sync(hdev, &wmt_params);
3185         if (err < 0) {
3186                 bt_dev_err(hdev, "Failed to send wmt func ctrl (%d)", err);
3187                 return err;
3188         }
3189
3190 ignore_func_on:
3191         /* Apply the low power environment setup */
3192         tci_sleep.mode = 0x5;
3193         tci_sleep.duration = cpu_to_le16(0x640);
3194         tci_sleep.host_duration = cpu_to_le16(0x640);
3195         tci_sleep.host_wakeup_pin = 0;
3196         tci_sleep.time_compensation = 0;
3197
3198         skb = __hci_cmd_sync(hdev, 0xfc7a, sizeof(tci_sleep), &tci_sleep,
3199                              HCI_INIT_TIMEOUT);
3200         if (IS_ERR(skb)) {
3201                 err = PTR_ERR(skb);
3202                 bt_dev_err(hdev, "Failed to apply low power setting (%d)", err);
3203                 return err;
3204         }
3205         kfree_skb(skb);
3206
3207 done:
3208         rettime = ktime_get();
3209         delta = ktime_sub(rettime, calltime);
3210         duration = (unsigned long long)ktime_to_ns(delta) >> 10;
3211
3212         bt_dev_info(hdev, "Device setup in %llu usecs", duration);
3213
3214         return 0;
3215 }
3216
3217 static int btusb_mtk_shutdown(struct hci_dev *hdev)
3218 {
3219         struct btmtk_hci_wmt_params wmt_params;
3220         u8 param = 0;
3221         int err;
3222
3223         /* Disable the device */
3224         wmt_params.op = BTMTK_WMT_FUNC_CTRL;
3225         wmt_params.flag = 0;
3226         wmt_params.dlen = sizeof(param);
3227         wmt_params.data = &param;
3228         wmt_params.status = NULL;
3229
3230         err = btusb_mtk_hci_wmt_sync(hdev, &wmt_params);
3231         if (err < 0) {
3232                 bt_dev_err(hdev, "Failed to send wmt func ctrl (%d)", err);
3233                 return err;
3234         }
3235
3236         return 0;
3237 }
3238
3239 static void btusb_mtk_cmd_timeout(struct hci_dev *hdev)
3240 {
3241         struct btusb_data *data = hci_get_drvdata(hdev);
3242         u32 val;
3243         int err;
3244         struct btmediatek_data *mediatek;
3245
3246         /* It's MediaTek specific bluetooth reset mechanism via USB */
3247         if (test_and_set_bit(BTUSB_HW_RESET_ACTIVE, &data->flags)) {
3248                 bt_dev_err(hdev, "last reset failed? Not resetting again");
3249                 return;
3250         }
3251
3252         err = usb_autopm_get_interface(data->intf);
3253         if (err < 0)
3254                 return;
3255
3256         btusb_stop_traffic(data);
3257         usb_kill_anchored_urbs(&data->tx_anchor);
3258         mediatek = hci_get_priv(hdev);
3259
3260         if (mediatek->dev_id == 0x7925) {
3261                 btusb_mtk_uhw_reg_read(data, MTK_BT_RESET_REG_CONNV3, &val);
3262                 val |= (1 << 5);
3263                 btusb_mtk_uhw_reg_write(data, MTK_BT_RESET_REG_CONNV3, val);
3264                 btusb_mtk_uhw_reg_read(data, MTK_BT_RESET_REG_CONNV3, &val);
3265                 val &= 0xFFFF00FF;
3266                 val |= (1 << 13);
3267                 btusb_mtk_uhw_reg_write(data, MTK_BT_RESET_REG_CONNV3, val);
3268                 btusb_mtk_uhw_reg_write(data, MTK_EP_RST_OPT, 0x00010001);
3269                 btusb_mtk_uhw_reg_read(data, MTK_BT_RESET_REG_CONNV3, &val);
3270                 val |= (1 << 0);
3271                 btusb_mtk_uhw_reg_write(data, MTK_BT_RESET_REG_CONNV3, val);
3272                 btusb_mtk_uhw_reg_write(data, MTK_UDMA_INT_STA_BT, 0x000000FF);
3273                 btusb_mtk_uhw_reg_read(data, MTK_UDMA_INT_STA_BT, &val);
3274                 btusb_mtk_uhw_reg_write(data, MTK_UDMA_INT_STA_BT1, 0x000000FF);
3275                 btusb_mtk_uhw_reg_read(data, MTK_UDMA_INT_STA_BT1, &val);
3276                 msleep(100);
3277         } else {
3278                 /* It's Device EndPoint Reset Option Register */
3279                 bt_dev_dbg(hdev, "Initiating reset mechanism via uhw");
3280                 btusb_mtk_uhw_reg_write(data, MTK_EP_RST_OPT, MTK_EP_RST_IN_OUT_OPT);
3281                 btusb_mtk_uhw_reg_read(data, MTK_BT_WDT_STATUS, &val);
3282
3283                 /* Reset the bluetooth chip via USB interface. */
3284                 btusb_mtk_uhw_reg_write(data, MTK_BT_SUBSYS_RST, 1);
3285                 btusb_mtk_uhw_reg_write(data, MTK_UDMA_INT_STA_BT, 0x000000FF);
3286                 btusb_mtk_uhw_reg_read(data, MTK_UDMA_INT_STA_BT, &val);
3287                 btusb_mtk_uhw_reg_write(data, MTK_UDMA_INT_STA_BT1, 0x000000FF);
3288                 btusb_mtk_uhw_reg_read(data, MTK_UDMA_INT_STA_BT1, &val);
3289                 /* MT7921 need to delay 20ms between toggle reset bit */
3290                 msleep(20);
3291                 btusb_mtk_uhw_reg_write(data, MTK_BT_SUBSYS_RST, 0);
3292                 btusb_mtk_uhw_reg_read(data, MTK_BT_SUBSYS_RST, &val);
3293         }
3294
3295         err = readx_poll_timeout(btusb_mtk_reset_done, hdev, val,
3296                                  val & MTK_BT_RST_DONE, 20000, 1000000);
3297         if (err < 0)
3298                 bt_dev_err(hdev, "Reset timeout");
3299
3300         btusb_mtk_id_get(data, 0x70010200, &val);
3301         if (!val)
3302                 bt_dev_err(hdev, "Can't get device id, subsys reset fail.");
3303
3304         usb_queue_reset_device(data->intf);
3305
3306         clear_bit(BTUSB_HW_RESET_ACTIVE, &data->flags);
3307 }
3308
3309 static int btusb_recv_acl_mtk(struct hci_dev *hdev, struct sk_buff *skb)
3310 {
3311         struct btusb_data *data = hci_get_drvdata(hdev);
3312         u16 handle = le16_to_cpu(hci_acl_hdr(skb)->handle);
3313
3314         switch (handle) {
3315         case 0xfc6f:            /* Firmware dump from device */
3316                 /* When the firmware hangs, the device can no longer
3317                  * suspend and thus disable auto-suspend.
3318                  */
3319                 usb_disable_autosuspend(data->udev);
3320                 fallthrough;
3321         case 0x05ff:            /* Firmware debug logging 1 */
3322         case 0x05fe:            /* Firmware debug logging 2 */
3323                 return hci_recv_diag(hdev, skb);
3324         }
3325
3326         return hci_recv_frame(hdev, skb);
3327 }
3328
3329 #ifdef CONFIG_PM
3330 /* Configure an out-of-band gpio as wake-up pin, if specified in device tree */
3331 static int marvell_config_oob_wake(struct hci_dev *hdev)
3332 {
3333         struct sk_buff *skb;
3334         struct btusb_data *data = hci_get_drvdata(hdev);
3335         struct device *dev = &data->udev->dev;
3336         u16 pin, gap, opcode;
3337         int ret;
3338         u8 cmd[5];
3339
3340         /* Move on if no wakeup pin specified */
3341         if (of_property_read_u16(dev->of_node, "marvell,wakeup-pin", &pin) ||
3342             of_property_read_u16(dev->of_node, "marvell,wakeup-gap-ms", &gap))
3343                 return 0;
3344
3345         /* Vendor specific command to configure a GPIO as wake-up pin */
3346         opcode = hci_opcode_pack(0x3F, 0x59);
3347         cmd[0] = opcode & 0xFF;
3348         cmd[1] = opcode >> 8;
3349         cmd[2] = 2; /* length of parameters that follow */
3350         cmd[3] = pin;
3351         cmd[4] = gap; /* time in ms, for which wakeup pin should be asserted */
3352
3353         skb = bt_skb_alloc(sizeof(cmd), GFP_KERNEL);
3354         if (!skb) {
3355                 bt_dev_err(hdev, "%s: No memory", __func__);
3356                 return -ENOMEM;
3357         }
3358
3359         skb_put_data(skb, cmd, sizeof(cmd));
3360         hci_skb_pkt_type(skb) = HCI_COMMAND_PKT;
3361
3362         ret = btusb_send_frame(hdev, skb);
3363         if (ret) {
3364                 bt_dev_err(hdev, "%s: configuration failed", __func__);
3365                 kfree_skb(skb);
3366                 return ret;
3367         }
3368
3369         return 0;
3370 }
3371 #endif
3372
3373 static int btusb_set_bdaddr_marvell(struct hci_dev *hdev,
3374                                     const bdaddr_t *bdaddr)
3375 {
3376         struct sk_buff *skb;
3377         u8 buf[8];
3378         long ret;
3379
3380         buf[0] = 0xfe;
3381         buf[1] = sizeof(bdaddr_t);
3382         memcpy(buf + 2, bdaddr, sizeof(bdaddr_t));
3383
3384         skb = __hci_cmd_sync(hdev, 0xfc22, sizeof(buf), buf, HCI_INIT_TIMEOUT);
3385         if (IS_ERR(skb)) {
3386                 ret = PTR_ERR(skb);
3387                 bt_dev_err(hdev, "changing Marvell device address failed (%ld)",
3388                            ret);
3389                 return ret;
3390         }
3391         kfree_skb(skb);
3392
3393         return 0;
3394 }
3395
3396 static int btusb_set_bdaddr_ath3012(struct hci_dev *hdev,
3397                                     const bdaddr_t *bdaddr)
3398 {
3399         struct sk_buff *skb;
3400         u8 buf[10];
3401         long ret;
3402
3403         buf[0] = 0x01;
3404         buf[1] = 0x01;
3405         buf[2] = 0x00;
3406         buf[3] = sizeof(bdaddr_t);
3407         memcpy(buf + 4, bdaddr, sizeof(bdaddr_t));
3408
3409         skb = __hci_cmd_sync(hdev, 0xfc0b, sizeof(buf), buf, HCI_INIT_TIMEOUT);
3410         if (IS_ERR(skb)) {
3411                 ret = PTR_ERR(skb);
3412                 bt_dev_err(hdev, "Change address command failed (%ld)", ret);
3413                 return ret;
3414         }
3415         kfree_skb(skb);
3416
3417         return 0;
3418 }
3419
3420 static int btusb_set_bdaddr_wcn6855(struct hci_dev *hdev,
3421                                 const bdaddr_t *bdaddr)
3422 {
3423         struct sk_buff *skb;
3424         u8 buf[6];
3425         long ret;
3426
3427         memcpy(buf, bdaddr, sizeof(bdaddr_t));
3428
3429         skb = __hci_cmd_sync_ev(hdev, 0xfc14, sizeof(buf), buf,
3430                                 HCI_EV_CMD_COMPLETE, HCI_INIT_TIMEOUT);
3431         if (IS_ERR(skb)) {
3432                 ret = PTR_ERR(skb);
3433                 bt_dev_err(hdev, "Change address command failed (%ld)", ret);
3434                 return ret;
3435         }
3436         kfree_skb(skb);
3437
3438         return 0;
3439 }
3440
3441 #define QCA_MEMDUMP_ACL_HANDLE 0x2EDD
3442 #define QCA_MEMDUMP_SIZE_MAX  0x100000
3443 #define QCA_MEMDUMP_VSE_CLASS 0x01
3444 #define QCA_MEMDUMP_MSG_TYPE 0x08
3445 #define QCA_MEMDUMP_PKT_SIZE 248
3446 #define QCA_LAST_SEQUENCE_NUM 0xffff
3447
3448 struct qca_dump_hdr {
3449         u8 vse_class;
3450         u8 msg_type;
3451         __le16 seqno;
3452         u8 reserved;
3453         union {
3454                 u8 data[0];
3455                 struct {
3456                         __le32 ram_dump_size;
3457                         u8 data0[0];
3458                 } __packed;
3459         };
3460 } __packed;
3461
3462
3463 static void btusb_dump_hdr_qca(struct hci_dev *hdev, struct sk_buff *skb)
3464 {
3465         char buf[128];
3466         struct btusb_data *btdata = hci_get_drvdata(hdev);
3467
3468         snprintf(buf, sizeof(buf), "Controller Name: 0x%x\n",
3469                         btdata->qca_dump.controller_id);
3470         skb_put_data(skb, buf, strlen(buf));
3471
3472         snprintf(buf, sizeof(buf), "Firmware Version: 0x%x\n",
3473                         btdata->qca_dump.fw_version);
3474         skb_put_data(skb, buf, strlen(buf));
3475
3476         snprintf(buf, sizeof(buf), "Driver: %s\nVendor: qca\n",
3477                         btusb_driver.name);
3478         skb_put_data(skb, buf, strlen(buf));
3479
3480         snprintf(buf, sizeof(buf), "VID: 0x%x\nPID:0x%x\n",
3481                         btdata->qca_dump.id_vendor, btdata->qca_dump.id_product);
3482         skb_put_data(skb, buf, strlen(buf));
3483
3484         snprintf(buf, sizeof(buf), "Lmp Subversion: 0x%x\n",
3485                         hdev->lmp_subver);
3486         skb_put_data(skb, buf, strlen(buf));
3487 }
3488
3489 static void btusb_coredump_qca(struct hci_dev *hdev)
3490 {
3491         static const u8 param[] = { 0x26 };
3492         struct sk_buff *skb;
3493
3494         skb = __hci_cmd_sync(hdev, 0xfc0c, 1, param, HCI_CMD_TIMEOUT);
3495         if (IS_ERR(skb))
3496                 bt_dev_err(hdev, "%s: triggle crash failed (%ld)", __func__, PTR_ERR(skb));
3497         kfree_skb(skb);
3498 }
3499
3500 /*
3501  * ==0: not a dump pkt.
3502  * < 0: fails to handle a dump pkt
3503  * > 0: otherwise.
3504  */
3505 static int handle_dump_pkt_qca(struct hci_dev *hdev, struct sk_buff *skb)
3506 {
3507         int ret = 1;
3508         u8 pkt_type;
3509         u8 *sk_ptr;
3510         unsigned int sk_len;
3511         u16 seqno;
3512         u32 dump_size;
3513
3514         struct hci_event_hdr *event_hdr;
3515         struct hci_acl_hdr *acl_hdr;
3516         struct qca_dump_hdr *dump_hdr;
3517         struct btusb_data *btdata = hci_get_drvdata(hdev);
3518         struct usb_device *udev = btdata->udev;
3519
3520         pkt_type = hci_skb_pkt_type(skb);
3521         sk_ptr = skb->data;
3522         sk_len = skb->len;
3523
3524         if (pkt_type == HCI_ACLDATA_PKT) {
3525                 acl_hdr = hci_acl_hdr(skb);
3526                 if (le16_to_cpu(acl_hdr->handle) != QCA_MEMDUMP_ACL_HANDLE)
3527                         return 0;
3528                 sk_ptr += HCI_ACL_HDR_SIZE;
3529                 sk_len -= HCI_ACL_HDR_SIZE;
3530                 event_hdr = (struct hci_event_hdr *)sk_ptr;
3531         } else {
3532                 event_hdr = hci_event_hdr(skb);
3533         }
3534
3535         if ((event_hdr->evt != HCI_VENDOR_PKT)
3536                 || (event_hdr->plen != (sk_len - HCI_EVENT_HDR_SIZE)))
3537                 return 0;
3538
3539         sk_ptr += HCI_EVENT_HDR_SIZE;
3540         sk_len -= HCI_EVENT_HDR_SIZE;
3541
3542         dump_hdr = (struct qca_dump_hdr *)sk_ptr;
3543         if ((sk_len < offsetof(struct qca_dump_hdr, data))
3544                 || (dump_hdr->vse_class != QCA_MEMDUMP_VSE_CLASS)
3545             || (dump_hdr->msg_type != QCA_MEMDUMP_MSG_TYPE))
3546                 return 0;
3547
3548         /*it is dump pkt now*/
3549         seqno = le16_to_cpu(dump_hdr->seqno);
3550         if (seqno == 0) {
3551                 set_bit(BTUSB_HW_SSR_ACTIVE, &btdata->flags);
3552                 dump_size = le32_to_cpu(dump_hdr->ram_dump_size);
3553                 if (!dump_size || (dump_size > QCA_MEMDUMP_SIZE_MAX)) {
3554                         ret = -EILSEQ;
3555                         bt_dev_err(hdev, "Invalid memdump size(%u)",
3556                                    dump_size);
3557                         goto out;
3558                 }
3559
3560                 ret = hci_devcd_init(hdev, dump_size);
3561                 if (ret < 0) {
3562                         bt_dev_err(hdev, "memdump init error(%d)", ret);
3563                         goto out;
3564                 }
3565
3566                 btdata->qca_dump.ram_dump_size = dump_size;
3567                 btdata->qca_dump.ram_dump_seqno = 0;
3568                 sk_ptr += offsetof(struct qca_dump_hdr, data0);
3569                 sk_len -= offsetof(struct qca_dump_hdr, data0);
3570
3571                 usb_disable_autosuspend(udev);
3572                 bt_dev_info(hdev, "%s memdump size(%u)\n",
3573                             (pkt_type == HCI_ACLDATA_PKT) ? "ACL" : "event",
3574                             dump_size);
3575         } else {
3576                 sk_ptr += offsetof(struct qca_dump_hdr, data);
3577                 sk_len -= offsetof(struct qca_dump_hdr, data);
3578         }
3579
3580         if (!btdata->qca_dump.ram_dump_size) {
3581                 ret = -EINVAL;
3582                 bt_dev_err(hdev, "memdump is not active");
3583                 goto out;
3584         }
3585
3586         if ((seqno > btdata->qca_dump.ram_dump_seqno + 1) && (seqno != QCA_LAST_SEQUENCE_NUM)) {
3587                 dump_size = QCA_MEMDUMP_PKT_SIZE * (seqno - btdata->qca_dump.ram_dump_seqno - 1);
3588                 hci_devcd_append_pattern(hdev, 0x0, dump_size);
3589                 bt_dev_err(hdev,
3590                            "expected memdump seqno(%u) is not received(%u)\n",
3591                            btdata->qca_dump.ram_dump_seqno, seqno);
3592                 btdata->qca_dump.ram_dump_seqno = seqno;
3593                 kfree_skb(skb);
3594                 return ret;
3595         }
3596
3597         skb_pull(skb, skb->len - sk_len);
3598         hci_devcd_append(hdev, skb);
3599         btdata->qca_dump.ram_dump_seqno++;
3600         if (seqno == QCA_LAST_SEQUENCE_NUM) {
3601                 bt_dev_info(hdev,
3602                                 "memdump done: pkts(%u), total(%u)\n",
3603                                 btdata->qca_dump.ram_dump_seqno, btdata->qca_dump.ram_dump_size);
3604
3605                 hci_devcd_complete(hdev);
3606                 goto out;
3607         }
3608         return ret;
3609
3610 out:
3611         if (btdata->qca_dump.ram_dump_size)
3612                 usb_enable_autosuspend(udev);
3613         btdata->qca_dump.ram_dump_size = 0;
3614         btdata->qca_dump.ram_dump_seqno = 0;
3615         clear_bit(BTUSB_HW_SSR_ACTIVE, &btdata->flags);
3616
3617         if (ret < 0)
3618                 kfree_skb(skb);
3619         return ret;
3620 }
3621
3622 static int btusb_recv_acl_qca(struct hci_dev *hdev, struct sk_buff *skb)
3623 {
3624         if (handle_dump_pkt_qca(hdev, skb))
3625                 return 0;
3626         return hci_recv_frame(hdev, skb);
3627 }
3628
3629 static int btusb_recv_evt_qca(struct hci_dev *hdev, struct sk_buff *skb)
3630 {
3631         if (handle_dump_pkt_qca(hdev, skb))
3632                 return 0;
3633         return hci_recv_frame(hdev, skb);
3634 }
3635
3636
3637 #define QCA_DFU_PACKET_LEN      4096
3638
3639 #define QCA_GET_TARGET_VERSION  0x09
3640 #define QCA_CHECK_STATUS        0x05
3641 #define QCA_DFU_DOWNLOAD        0x01
3642
3643 #define QCA_SYSCFG_UPDATED      0x40
3644 #define QCA_PATCH_UPDATED       0x80
3645 #define QCA_DFU_TIMEOUT         3000
3646 #define QCA_FLAG_MULTI_NVM      0x80
3647 #define QCA_BT_RESET_WAIT_MS    100
3648
3649 #define WCN6855_2_0_RAM_VERSION_GF 0x400c1200
3650 #define WCN6855_2_1_RAM_VERSION_GF 0x400c1211
3651
3652 struct qca_version {
3653         __le32  rom_version;
3654         __le32  patch_version;
3655         __le32  ram_version;
3656         __u8    chip_id;
3657         __u8    platform_id;
3658         __le16  flag;
3659         __u8    reserved[4];
3660 } __packed;
3661
3662 struct qca_rampatch_version {
3663         __le16  rom_version_high;
3664         __le16  rom_version_low;
3665         __le16  patch_version;
3666 } __packed;
3667
3668 struct qca_device_info {
3669         u32     rom_version;
3670         u8      rampatch_hdr;   /* length of header in rampatch */
3671         u8      nvm_hdr;        /* length of header in NVM */
3672         u8      ver_offset;     /* offset of version structure in rampatch */
3673 };
3674
3675 static const struct qca_device_info qca_devices_table[] = {
3676         { 0x00000100, 20, 4,  8 }, /* Rome 1.0 */
3677         { 0x00000101, 20, 4,  8 }, /* Rome 1.1 */
3678         { 0x00000200, 28, 4, 16 }, /* Rome 2.0 */
3679         { 0x00000201, 28, 4, 16 }, /* Rome 2.1 */
3680         { 0x00000300, 28, 4, 16 }, /* Rome 3.0 */
3681         { 0x00000302, 28, 4, 16 }, /* Rome 3.2 */
3682         { 0x00130100, 40, 4, 16 }, /* WCN6855 1.0 */
3683         { 0x00130200, 40, 4, 16 }, /* WCN6855 2.0 */
3684         { 0x00130201, 40, 4, 16 }, /* WCN6855 2.1 */
3685         { 0x00190200, 40, 4, 16 }, /* WCN785x 2.0 */
3686 };
3687
3688 static int btusb_qca_send_vendor_req(struct usb_device *udev, u8 request,
3689                                      void *data, u16 size)
3690 {
3691         int pipe, err;
3692         u8 *buf;
3693
3694         buf = kmalloc(size, GFP_KERNEL);
3695         if (!buf)
3696                 return -ENOMEM;
3697
3698         /* Found some of USB hosts have IOT issues with ours so that we should
3699          * not wait until HCI layer is ready.
3700          */
3701         pipe = usb_rcvctrlpipe(udev, 0);
3702         err = usb_control_msg(udev, pipe, request, USB_TYPE_VENDOR | USB_DIR_IN,
3703                               0, 0, buf, size, USB_CTRL_SET_TIMEOUT);
3704         if (err < 0) {
3705                 dev_err(&udev->dev, "Failed to access otp area (%d)", err);
3706                 goto done;
3707         }
3708
3709         memcpy(data, buf, size);
3710
3711 done:
3712         kfree(buf);
3713
3714         return err;
3715 }
3716
3717 static int btusb_setup_qca_download_fw(struct hci_dev *hdev,
3718                                        const struct firmware *firmware,
3719                                        size_t hdr_size)
3720 {
3721         struct btusb_data *btdata = hci_get_drvdata(hdev);
3722         struct usb_device *udev = btdata->udev;
3723         size_t count, size, sent = 0;
3724         int pipe, len, err;
3725         u8 *buf;
3726
3727         buf = kmalloc(QCA_DFU_PACKET_LEN, GFP_KERNEL);
3728         if (!buf)
3729                 return -ENOMEM;
3730
3731         count = firmware->size;
3732
3733         size = min_t(size_t, count, hdr_size);
3734         memcpy(buf, firmware->data, size);
3735
3736         /* USB patches should go down to controller through USB path
3737          * because binary format fits to go down through USB channel.
3738          * USB control path is for patching headers and USB bulk is for
3739          * patch body.
3740          */
3741         pipe = usb_sndctrlpipe(udev, 0);
3742         err = usb_control_msg(udev, pipe, QCA_DFU_DOWNLOAD, USB_TYPE_VENDOR,
3743                               0, 0, buf, size, USB_CTRL_SET_TIMEOUT);
3744         if (err < 0) {
3745                 bt_dev_err(hdev, "Failed to send headers (%d)", err);
3746                 goto done;
3747         }
3748
3749         sent += size;
3750         count -= size;
3751
3752         /* ep2 need time to switch from function acl to function dfu,
3753          * so we add 20ms delay here.
3754          */
3755         msleep(20);
3756
3757         while (count) {
3758                 size = min_t(size_t, count, QCA_DFU_PACKET_LEN);
3759
3760                 memcpy(buf, firmware->data + sent, size);
3761
3762                 pipe = usb_sndbulkpipe(udev, 0x02);
3763                 err = usb_bulk_msg(udev, pipe, buf, size, &len,
3764                                    QCA_DFU_TIMEOUT);
3765                 if (err < 0) {
3766                         bt_dev_err(hdev, "Failed to send body at %zd of %zd (%d)",
3767                                    sent, firmware->size, err);
3768                         break;
3769                 }
3770
3771                 if (size != len) {
3772                         bt_dev_err(hdev, "Failed to get bulk buffer");
3773                         err = -EILSEQ;
3774                         break;
3775                 }
3776
3777                 sent  += size;
3778                 count -= size;
3779         }
3780
3781 done:
3782         kfree(buf);
3783         return err;
3784 }
3785
3786 static int btusb_setup_qca_load_rampatch(struct hci_dev *hdev,
3787                                          struct qca_version *ver,
3788                                          const struct qca_device_info *info)
3789 {
3790         struct qca_rampatch_version *rver;
3791         const struct firmware *fw;
3792         u32 ver_rom, ver_patch, rver_rom;
3793         u16 rver_rom_low, rver_rom_high, rver_patch;
3794         char fwname[64];
3795         int err;
3796
3797         ver_rom = le32_to_cpu(ver->rom_version);
3798         ver_patch = le32_to_cpu(ver->patch_version);
3799
3800         snprintf(fwname, sizeof(fwname), "qca/rampatch_usb_%08x.bin", ver_rom);
3801
3802         err = request_firmware(&fw, fwname, &hdev->dev);
3803         if (err) {
3804                 bt_dev_err(hdev, "failed to request rampatch file: %s (%d)",
3805                            fwname, err);
3806                 return err;
3807         }
3808
3809         bt_dev_info(hdev, "using rampatch file: %s", fwname);
3810
3811         rver = (struct qca_rampatch_version *)(fw->data + info->ver_offset);
3812         rver_rom_low = le16_to_cpu(rver->rom_version_low);
3813         rver_patch = le16_to_cpu(rver->patch_version);
3814
3815         if (ver_rom & ~0xffffU) {
3816                 rver_rom_high = le16_to_cpu(rver->rom_version_high);
3817                 rver_rom = rver_rom_high << 16 | rver_rom_low;
3818         } else {
3819                 rver_rom = rver_rom_low;
3820         }
3821
3822         bt_dev_info(hdev, "QCA: patch rome 0x%x build 0x%x, "
3823                     "firmware rome 0x%x build 0x%x",
3824                     rver_rom, rver_patch, ver_rom, ver_patch);
3825
3826         if (rver_rom != ver_rom || rver_patch <= ver_patch) {
3827                 bt_dev_err(hdev, "rampatch file version did not match with firmware");
3828                 err = -EINVAL;
3829                 goto done;
3830         }
3831
3832         err = btusb_setup_qca_download_fw(hdev, fw, info->rampatch_hdr);
3833
3834 done:
3835         release_firmware(fw);
3836
3837         return err;
3838 }
3839
3840 static void btusb_generate_qca_nvm_name(char *fwname, size_t max_size,
3841                                         const struct qca_version *ver)
3842 {
3843         u32 rom_version = le32_to_cpu(ver->rom_version);
3844         u16 flag = le16_to_cpu(ver->flag);
3845
3846         if (((flag >> 8) & 0xff) == QCA_FLAG_MULTI_NVM) {
3847                 /* The board_id should be split into two bytes
3848                  * The 1st byte is chip ID, and the 2nd byte is platform ID
3849                  * For example, board ID 0x010A, 0x01 is platform ID. 0x0A is chip ID
3850                  * we have several platforms, and platform IDs are continuously added
3851                  * Platform ID:
3852                  * 0x00 is for Mobile
3853                  * 0x01 is for X86
3854                  * 0x02 is for Automotive
3855                  * 0x03 is for Consumer electronic
3856                  */
3857                 u16 board_id = (ver->chip_id << 8) + ver->platform_id;
3858                 const char *variant;
3859
3860                 switch (le32_to_cpu(ver->ram_version)) {
3861                 case WCN6855_2_0_RAM_VERSION_GF:
3862                 case WCN6855_2_1_RAM_VERSION_GF:
3863                         variant = "_gf";
3864                         break;
3865                 default:
3866                         variant = "";
3867                         break;
3868                 }
3869
3870                 if (board_id == 0) {
3871                         snprintf(fwname, max_size, "qca/nvm_usb_%08x%s.bin",
3872                                 rom_version, variant);
3873                 } else {
3874                         snprintf(fwname, max_size, "qca/nvm_usb_%08x%s_%04x.bin",
3875                                 rom_version, variant, board_id);
3876                 }
3877         } else {
3878                 snprintf(fwname, max_size, "qca/nvm_usb_%08x.bin",
3879                         rom_version);
3880         }
3881
3882 }
3883
3884 static int btusb_setup_qca_load_nvm(struct hci_dev *hdev,
3885                                     struct qca_version *ver,
3886                                     const struct qca_device_info *info)
3887 {
3888         const struct firmware *fw;
3889         char fwname[64];
3890         int err;
3891
3892         btusb_generate_qca_nvm_name(fwname, sizeof(fwname), ver);
3893
3894         err = request_firmware(&fw, fwname, &hdev->dev);
3895         if (err) {
3896                 bt_dev_err(hdev, "failed to request NVM file: %s (%d)",
3897                            fwname, err);
3898                 return err;
3899         }
3900
3901         bt_dev_info(hdev, "using NVM file: %s", fwname);
3902
3903         err = btusb_setup_qca_download_fw(hdev, fw, info->nvm_hdr);
3904
3905         release_firmware(fw);
3906
3907         return err;
3908 }
3909
3910 /* identify the ROM version and check whether patches are needed */
3911 static bool btusb_qca_need_patch(struct usb_device *udev)
3912 {
3913         struct qca_version ver;
3914
3915         if (btusb_qca_send_vendor_req(udev, QCA_GET_TARGET_VERSION, &ver,
3916                                       sizeof(ver)) < 0)
3917                 return false;
3918         /* only low ROM versions need patches */
3919         return !(le32_to_cpu(ver.rom_version) & ~0xffffU);
3920 }
3921
3922 static int btusb_setup_qca(struct hci_dev *hdev)
3923 {
3924         struct btusb_data *btdata = hci_get_drvdata(hdev);
3925         struct usb_device *udev = btdata->udev;
3926         const struct qca_device_info *info = NULL;
3927         struct qca_version ver;
3928         u32 ver_rom;
3929         u8 status;
3930         int i, err;
3931
3932         err = btusb_qca_send_vendor_req(udev, QCA_GET_TARGET_VERSION, &ver,
3933                                         sizeof(ver));
3934         if (err < 0)
3935                 return err;
3936
3937         ver_rom = le32_to_cpu(ver.rom_version);
3938
3939         for (i = 0; i < ARRAY_SIZE(qca_devices_table); i++) {
3940                 if (ver_rom == qca_devices_table[i].rom_version)
3941                         info = &qca_devices_table[i];
3942         }
3943         if (!info) {
3944                 /* If the rom_version is not matched in the qca_devices_table
3945                  * and the high ROM version is not zero, we assume this chip no
3946                  * need to load the rampatch and nvm.
3947                  */
3948                 if (ver_rom & ~0xffffU)
3949                         return 0;
3950
3951                 bt_dev_err(hdev, "don't support firmware rome 0x%x", ver_rom);
3952                 return -ENODEV;
3953         }
3954
3955         err = btusb_qca_send_vendor_req(udev, QCA_CHECK_STATUS, &status,
3956                                         sizeof(status));
3957         if (err < 0)
3958                 return err;
3959
3960         if (!(status & QCA_PATCH_UPDATED)) {
3961                 err = btusb_setup_qca_load_rampatch(hdev, &ver, info);
3962                 if (err < 0)
3963                         return err;
3964         }
3965
3966         err = btusb_qca_send_vendor_req(udev, QCA_GET_TARGET_VERSION, &ver,
3967                                         sizeof(ver));
3968         if (err < 0)
3969                 return err;
3970
3971         btdata->qca_dump.fw_version = le32_to_cpu(ver.patch_version);
3972         btdata->qca_dump.controller_id = le32_to_cpu(ver.rom_version);
3973
3974         if (!(status & QCA_SYSCFG_UPDATED)) {
3975                 err = btusb_setup_qca_load_nvm(hdev, &ver, info);
3976                 if (err < 0)
3977                         return err;
3978
3979                 /* WCN6855 2.1 and later will reset to apply firmware downloaded here, so
3980                  * wait ~100ms for reset Done then go ahead, otherwise, it maybe
3981                  * cause potential enable failure.
3982                  */
3983                 if (info->rom_version >= 0x00130201)
3984                         msleep(QCA_BT_RESET_WAIT_MS);
3985         }
3986
3987         /* Mark HCI_OP_ENHANCED_SETUP_SYNC_CONN as broken as it doesn't seem to
3988          * work with the likes of HSP/HFP mSBC.
3989          */
3990         set_bit(HCI_QUIRK_BROKEN_ENHANCED_SETUP_SYNC_CONN, &hdev->quirks);
3991
3992         return 0;
3993 }
3994
3995 static inline int __set_diag_interface(struct hci_dev *hdev)
3996 {
3997         struct btusb_data *data = hci_get_drvdata(hdev);
3998         struct usb_interface *intf = data->diag;
3999         int i;
4000
4001         if (!data->diag)
4002                 return -ENODEV;
4003
4004         data->diag_tx_ep = NULL;
4005         data->diag_rx_ep = NULL;
4006
4007         for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
4008                 struct usb_endpoint_descriptor *ep_desc;
4009
4010                 ep_desc = &intf->cur_altsetting->endpoint[i].desc;
4011
4012                 if (!data->diag_tx_ep && usb_endpoint_is_bulk_out(ep_desc)) {
4013                         data->diag_tx_ep = ep_desc;
4014                         continue;
4015                 }
4016
4017                 if (!data->diag_rx_ep && usb_endpoint_is_bulk_in(ep_desc)) {
4018                         data->diag_rx_ep = ep_desc;
4019                         continue;
4020                 }
4021         }
4022
4023         if (!data->diag_tx_ep || !data->diag_rx_ep) {
4024                 bt_dev_err(hdev, "invalid diagnostic descriptors");
4025                 return -ENODEV;
4026         }
4027
4028         return 0;
4029 }
4030
4031 static struct urb *alloc_diag_urb(struct hci_dev *hdev, bool enable)
4032 {
4033         struct btusb_data *data = hci_get_drvdata(hdev);
4034         struct sk_buff *skb;
4035         struct urb *urb;
4036         unsigned int pipe;
4037
4038         if (!data->diag_tx_ep)
4039                 return ERR_PTR(-ENODEV);
4040
4041         urb = usb_alloc_urb(0, GFP_KERNEL);
4042         if (!urb)
4043                 return ERR_PTR(-ENOMEM);
4044
4045         skb = bt_skb_alloc(2, GFP_KERNEL);
4046         if (!skb) {
4047                 usb_free_urb(urb);
4048                 return ERR_PTR(-ENOMEM);
4049         }
4050
4051         skb_put_u8(skb, 0xf0);
4052         skb_put_u8(skb, enable);
4053
4054         pipe = usb_sndbulkpipe(data->udev, data->diag_tx_ep->bEndpointAddress);
4055
4056         usb_fill_bulk_urb(urb, data->udev, pipe,
4057                           skb->data, skb->len, btusb_tx_complete, skb);
4058
4059         skb->dev = (void *)hdev;
4060
4061         return urb;
4062 }
4063
4064 static int btusb_bcm_set_diag(struct hci_dev *hdev, bool enable)
4065 {
4066         struct btusb_data *data = hci_get_drvdata(hdev);
4067         struct urb *urb;
4068
4069         if (!data->diag)
4070                 return -ENODEV;
4071
4072         if (!test_bit(HCI_RUNNING, &hdev->flags))
4073                 return -ENETDOWN;
4074
4075         urb = alloc_diag_urb(hdev, enable);
4076         if (IS_ERR(urb))
4077                 return PTR_ERR(urb);
4078
4079         return submit_or_queue_tx_urb(hdev, urb);
4080 }
4081
4082 #ifdef CONFIG_PM
4083 static irqreturn_t btusb_oob_wake_handler(int irq, void *priv)
4084 {
4085         struct btusb_data *data = priv;
4086
4087         pm_wakeup_event(&data->udev->dev, 0);
4088         pm_system_wakeup();
4089
4090         /* Disable only if not already disabled (keep it balanced) */
4091         if (test_and_clear_bit(BTUSB_OOB_WAKE_ENABLED, &data->flags)) {
4092                 disable_irq_nosync(irq);
4093                 disable_irq_wake(irq);
4094         }
4095         return IRQ_HANDLED;
4096 }
4097
4098 static const struct of_device_id btusb_match_table[] = {
4099         { .compatible = "usb1286,204e" },
4100         { .compatible = "usbcf3,e300" }, /* QCA6174A */
4101         { .compatible = "usb4ca,301a" }, /* QCA6174A (Lite-On) */
4102         { }
4103 };
4104 MODULE_DEVICE_TABLE(of, btusb_match_table);
4105
4106 /* Use an oob wakeup pin? */
4107 static int btusb_config_oob_wake(struct hci_dev *hdev)
4108 {
4109         struct btusb_data *data = hci_get_drvdata(hdev);
4110         struct device *dev = &data->udev->dev;
4111         int irq, ret;
4112
4113         clear_bit(BTUSB_OOB_WAKE_ENABLED, &data->flags);
4114
4115         if (!of_match_device(btusb_match_table, dev))
4116                 return 0;
4117
4118         /* Move on if no IRQ specified */
4119         irq = of_irq_get_byname(dev->of_node, "wakeup");
4120         if (irq <= 0) {
4121                 bt_dev_dbg(hdev, "%s: no OOB Wakeup IRQ in DT", __func__);
4122                 return 0;
4123         }
4124
4125         irq_set_status_flags(irq, IRQ_NOAUTOEN);
4126         ret = devm_request_irq(&hdev->dev, irq, btusb_oob_wake_handler,
4127                                0, "OOB Wake-on-BT", data);
4128         if (ret) {
4129                 bt_dev_err(hdev, "%s: IRQ request failed", __func__);
4130                 return ret;
4131         }
4132
4133         ret = device_init_wakeup(dev, true);
4134         if (ret) {
4135                 bt_dev_err(hdev, "%s: failed to init_wakeup", __func__);
4136                 return ret;
4137         }
4138
4139         data->oob_wake_irq = irq;
4140         bt_dev_info(hdev, "OOB Wake-on-BT configured at IRQ %u", irq);
4141         return 0;
4142 }
4143 #endif
4144
4145 static void btusb_check_needs_reset_resume(struct usb_interface *intf)
4146 {
4147         if (dmi_check_system(btusb_needs_reset_resume_table))
4148                 interface_to_usbdev(intf)->quirks |= USB_QUIRK_RESET_RESUME;
4149 }
4150
4151 static bool btusb_wakeup(struct hci_dev *hdev)
4152 {
4153         struct btusb_data *data = hci_get_drvdata(hdev);
4154
4155         return device_may_wakeup(&data->udev->dev);
4156 }
4157
4158 static int btusb_shutdown_qca(struct hci_dev *hdev)
4159 {
4160         struct sk_buff *skb;
4161
4162         skb = __hci_cmd_sync(hdev, HCI_OP_RESET, 0, NULL, HCI_INIT_TIMEOUT);
4163         if (IS_ERR(skb)) {
4164                 bt_dev_err(hdev, "HCI reset during shutdown failed");
4165                 return PTR_ERR(skb);
4166         }
4167         kfree_skb(skb);
4168
4169         return 0;
4170 }
4171
4172 static ssize_t force_poll_sync_read(struct file *file, char __user *user_buf,
4173                                     size_t count, loff_t *ppos)
4174 {
4175         struct btusb_data *data = file->private_data;
4176         char buf[3];
4177
4178         buf[0] = data->poll_sync ? 'Y' : 'N';
4179         buf[1] = '\n';
4180         buf[2] = '\0';
4181         return simple_read_from_buffer(user_buf, count, ppos, buf, 2);
4182 }
4183
4184 static ssize_t force_poll_sync_write(struct file *file,
4185                                      const char __user *user_buf,
4186                                      size_t count, loff_t *ppos)
4187 {
4188         struct btusb_data *data = file->private_data;
4189         bool enable;
4190         int err;
4191
4192         err = kstrtobool_from_user(user_buf, count, &enable);
4193         if (err)
4194                 return err;
4195
4196         /* Only allow changes while the adapter is down */
4197         if (test_bit(HCI_UP, &data->hdev->flags))
4198                 return -EPERM;
4199
4200         if (data->poll_sync == enable)
4201                 return -EALREADY;
4202
4203         data->poll_sync = enable;
4204
4205         return count;
4206 }
4207
4208 static const struct file_operations force_poll_sync_fops = {
4209         .open           = simple_open,
4210         .read           = force_poll_sync_read,
4211         .write          = force_poll_sync_write,
4212         .llseek         = default_llseek,
4213 };
4214
4215 static int btusb_probe(struct usb_interface *intf,
4216                        const struct usb_device_id *id)
4217 {
4218         struct usb_endpoint_descriptor *ep_desc;
4219         struct gpio_desc *reset_gpio;
4220         struct btusb_data *data;
4221         struct hci_dev *hdev;
4222         unsigned ifnum_base;
4223         int i, err, priv_size;
4224
4225         BT_DBG("intf %p id %p", intf, id);
4226
4227         if ((id->driver_info & BTUSB_IFNUM_2) &&
4228             (intf->cur_altsetting->desc.bInterfaceNumber != 0) &&
4229             (intf->cur_altsetting->desc.bInterfaceNumber != 2))
4230                 return -ENODEV;
4231
4232         ifnum_base = intf->cur_altsetting->desc.bInterfaceNumber;
4233
4234         if (!id->driver_info) {
4235                 const struct usb_device_id *match;
4236
4237                 match = usb_match_id(intf, blacklist_table);
4238                 if (match)
4239                         id = match;
4240         }
4241
4242         if (id->driver_info == BTUSB_IGNORE)
4243                 return -ENODEV;
4244
4245         if (id->driver_info & BTUSB_ATH3012) {
4246                 struct usb_device *udev = interface_to_usbdev(intf);
4247
4248                 /* Old firmware would otherwise let ath3k driver load
4249                  * patch and sysconfig files
4250                  */
4251                 if (le16_to_cpu(udev->descriptor.bcdDevice) <= 0x0001 &&
4252                     !btusb_qca_need_patch(udev))
4253                         return -ENODEV;
4254         }
4255
4256         data = devm_kzalloc(&intf->dev, sizeof(*data), GFP_KERNEL);
4257         if (!data)
4258                 return -ENOMEM;
4259
4260         for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
4261                 ep_desc = &intf->cur_altsetting->endpoint[i].desc;
4262
4263                 if (!data->intr_ep && usb_endpoint_is_int_in(ep_desc)) {
4264                         data->intr_ep = ep_desc;
4265                         continue;
4266                 }
4267
4268                 if (!data->bulk_tx_ep && usb_endpoint_is_bulk_out(ep_desc)) {
4269                         data->bulk_tx_ep = ep_desc;
4270                         continue;
4271                 }
4272
4273                 if (!data->bulk_rx_ep && usb_endpoint_is_bulk_in(ep_desc)) {
4274                         data->bulk_rx_ep = ep_desc;
4275                         continue;
4276                 }
4277         }
4278
4279         if (!data->intr_ep || !data->bulk_tx_ep || !data->bulk_rx_ep)
4280                 return -ENODEV;
4281
4282         if (id->driver_info & BTUSB_AMP) {
4283                 data->cmdreq_type = USB_TYPE_CLASS | 0x01;
4284                 data->cmdreq = 0x2b;
4285         } else {
4286                 data->cmdreq_type = USB_TYPE_CLASS;
4287                 data->cmdreq = 0x00;
4288         }
4289
4290         data->udev = interface_to_usbdev(intf);
4291         data->intf = intf;
4292
4293         INIT_WORK(&data->work, btusb_work);
4294         INIT_WORK(&data->waker, btusb_waker);
4295         INIT_DELAYED_WORK(&data->rx_work, btusb_rx_work);
4296
4297         skb_queue_head_init(&data->acl_q);
4298
4299         init_usb_anchor(&data->deferred);
4300         init_usb_anchor(&data->tx_anchor);
4301         spin_lock_init(&data->txlock);
4302
4303         init_usb_anchor(&data->intr_anchor);
4304         init_usb_anchor(&data->bulk_anchor);
4305         init_usb_anchor(&data->isoc_anchor);
4306         init_usb_anchor(&data->diag_anchor);
4307         init_usb_anchor(&data->ctrl_anchor);
4308         spin_lock_init(&data->rxlock);
4309
4310         priv_size = 0;
4311
4312         data->recv_event = hci_recv_frame;
4313         data->recv_bulk = btusb_recv_bulk;
4314
4315         if (id->driver_info & BTUSB_INTEL_COMBINED) {
4316                 /* Allocate extra space for Intel device */
4317                 priv_size += sizeof(struct btintel_data);
4318
4319                 /* Override the rx handlers */
4320                 data->recv_event = btusb_recv_event_intel;
4321                 data->recv_bulk = btusb_recv_bulk_intel;
4322         } else if (id->driver_info & BTUSB_REALTEK) {
4323                 /* Allocate extra space for Realtek device */
4324                 priv_size += sizeof(struct btrealtek_data);
4325
4326                 data->recv_event = btusb_recv_event_realtek;
4327         } else if (id->driver_info & BTUSB_MEDIATEK) {
4328                 /* Allocate extra space for Mediatek device */
4329                 priv_size += sizeof(struct btmediatek_data);
4330         }
4331
4332         data->recv_acl = hci_recv_frame;
4333
4334         hdev = hci_alloc_dev_priv(priv_size);
4335         if (!hdev)
4336                 return -ENOMEM;
4337
4338         hdev->bus = HCI_USB;
4339         hci_set_drvdata(hdev, data);
4340
4341         if (id->driver_info & BTUSB_AMP)
4342                 hdev->dev_type = HCI_AMP;
4343         else
4344                 hdev->dev_type = HCI_PRIMARY;
4345
4346         data->hdev = hdev;
4347
4348         SET_HCIDEV_DEV(hdev, &intf->dev);
4349
4350         reset_gpio = gpiod_get_optional(&data->udev->dev, "reset",
4351                                         GPIOD_OUT_LOW);
4352         if (IS_ERR(reset_gpio)) {
4353                 err = PTR_ERR(reset_gpio);
4354                 goto out_free_dev;
4355         } else if (reset_gpio) {
4356                 data->reset_gpio = reset_gpio;
4357         }
4358
4359         hdev->open   = btusb_open;
4360         hdev->close  = btusb_close;
4361         hdev->flush  = btusb_flush;
4362         hdev->send   = btusb_send_frame;
4363         hdev->notify = btusb_notify;
4364         hdev->wakeup = btusb_wakeup;
4365
4366 #ifdef CONFIG_PM
4367         err = btusb_config_oob_wake(hdev);
4368         if (err)
4369                 goto out_free_dev;
4370
4371         /* Marvell devices may need a specific chip configuration */
4372         if (id->driver_info & BTUSB_MARVELL && data->oob_wake_irq) {
4373                 err = marvell_config_oob_wake(hdev);
4374                 if (err)
4375                         goto out_free_dev;
4376         }
4377 #endif
4378         if (id->driver_info & BTUSB_CW6622)
4379                 set_bit(HCI_QUIRK_BROKEN_STORED_LINK_KEY, &hdev->quirks);
4380
4381         if (id->driver_info & BTUSB_BCM2045)
4382                 set_bit(HCI_QUIRK_BROKEN_STORED_LINK_KEY, &hdev->quirks);
4383
4384         if (id->driver_info & BTUSB_BCM92035)
4385                 hdev->setup = btusb_setup_bcm92035;
4386
4387         if (IS_ENABLED(CONFIG_BT_HCIBTUSB_BCM) &&
4388             (id->driver_info & BTUSB_BCM_PATCHRAM)) {
4389                 hdev->manufacturer = 15;
4390                 hdev->setup = btbcm_setup_patchram;
4391                 hdev->set_diag = btusb_bcm_set_diag;
4392                 hdev->set_bdaddr = btbcm_set_bdaddr;
4393
4394                 /* Broadcom LM_DIAG Interface numbers are hardcoded */
4395                 data->diag = usb_ifnum_to_if(data->udev, ifnum_base + 2);
4396         }
4397
4398         if (IS_ENABLED(CONFIG_BT_HCIBTUSB_BCM) &&
4399             (id->driver_info & BTUSB_BCM_APPLE)) {
4400                 hdev->manufacturer = 15;
4401                 hdev->setup = btbcm_setup_apple;
4402                 hdev->set_diag = btusb_bcm_set_diag;
4403
4404                 /* Broadcom LM_DIAG Interface numbers are hardcoded */
4405                 data->diag = usb_ifnum_to_if(data->udev, ifnum_base + 2);
4406         }
4407
4408         /* Combined Intel Device setup to support multiple setup routine */
4409         if (id->driver_info & BTUSB_INTEL_COMBINED) {
4410                 err = btintel_configure_setup(hdev, btusb_driver.name);
4411                 if (err)
4412                         goto out_free_dev;
4413
4414                 /* Transport specific configuration */
4415                 hdev->send = btusb_send_frame_intel;
4416                 hdev->cmd_timeout = btusb_intel_cmd_timeout;
4417
4418                 if (id->driver_info & BTUSB_INTEL_NO_WBS_SUPPORT)
4419                         btintel_set_flag(hdev, INTEL_ROM_LEGACY_NO_WBS_SUPPORT);
4420
4421                 if (id->driver_info & BTUSB_INTEL_BROKEN_INITIAL_NCMD)
4422                         btintel_set_flag(hdev, INTEL_BROKEN_INITIAL_NCMD);
4423
4424                 if (id->driver_info & BTUSB_INTEL_BROKEN_SHUTDOWN_LED)
4425                         btintel_set_flag(hdev, INTEL_BROKEN_SHUTDOWN_LED);
4426         }
4427
4428         if (id->driver_info & BTUSB_MARVELL)
4429                 hdev->set_bdaddr = btusb_set_bdaddr_marvell;
4430
4431         if (IS_ENABLED(CONFIG_BT_HCIBTUSB_MTK) &&
4432             (id->driver_info & BTUSB_MEDIATEK)) {
4433                 hdev->setup = btusb_mtk_setup;
4434                 hdev->shutdown = btusb_mtk_shutdown;
4435                 hdev->manufacturer = 70;
4436                 hdev->cmd_timeout = btusb_mtk_cmd_timeout;
4437                 hdev->set_bdaddr = btmtk_set_bdaddr;
4438                 set_bit(HCI_QUIRK_BROKEN_ENHANCED_SETUP_SYNC_CONN, &hdev->quirks);
4439                 set_bit(HCI_QUIRK_NON_PERSISTENT_SETUP, &hdev->quirks);
4440                 data->recv_acl = btusb_recv_acl_mtk;
4441         }
4442
4443         if (id->driver_info & BTUSB_SWAVE) {
4444                 set_bit(HCI_QUIRK_FIXUP_INQUIRY_MODE, &hdev->quirks);
4445                 set_bit(HCI_QUIRK_BROKEN_LOCAL_COMMANDS, &hdev->quirks);
4446         }
4447
4448         if (id->driver_info & BTUSB_INTEL_BOOT) {
4449                 hdev->manufacturer = 2;
4450                 set_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks);
4451         }
4452
4453         if (id->driver_info & BTUSB_ATH3012) {
4454                 data->setup_on_usb = btusb_setup_qca;
4455                 hdev->set_bdaddr = btusb_set_bdaddr_ath3012;
4456                 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks);
4457                 set_bit(HCI_QUIRK_STRICT_DUPLICATE_FILTER, &hdev->quirks);
4458         }
4459
4460         if (id->driver_info & BTUSB_QCA_ROME) {
4461                 data->setup_on_usb = btusb_setup_qca;
4462                 hdev->set_bdaddr = btusb_set_bdaddr_ath3012;
4463                 hdev->cmd_timeout = btusb_qca_cmd_timeout;
4464                 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks);
4465                 btusb_check_needs_reset_resume(intf);
4466         }
4467
4468         if (id->driver_info & BTUSB_QCA_WCN6855) {
4469                 data->qca_dump.id_vendor = id->idVendor;
4470                 data->qca_dump.id_product = id->idProduct;
4471                 data->recv_event = btusb_recv_evt_qca;
4472                 data->recv_acl = btusb_recv_acl_qca;
4473                 hci_devcd_register(hdev, btusb_coredump_qca, btusb_dump_hdr_qca, NULL);
4474                 data->setup_on_usb = btusb_setup_qca;
4475                 hdev->shutdown = btusb_shutdown_qca;
4476                 hdev->set_bdaddr = btusb_set_bdaddr_wcn6855;
4477                 hdev->cmd_timeout = btusb_qca_cmd_timeout;
4478                 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks);
4479                 hci_set_msft_opcode(hdev, 0xFD70);
4480         }
4481
4482         if (id->driver_info & BTUSB_AMP) {
4483                 /* AMP controllers do not support SCO packets */
4484                 data->isoc = NULL;
4485         } else {
4486                 /* Interface orders are hardcoded in the specification */
4487                 data->isoc = usb_ifnum_to_if(data->udev, ifnum_base + 1);
4488                 data->isoc_ifnum = ifnum_base + 1;
4489         }
4490
4491         if (IS_ENABLED(CONFIG_BT_HCIBTUSB_RTL) &&
4492             (id->driver_info & BTUSB_REALTEK)) {
4493                 btrtl_set_driver_name(hdev, btusb_driver.name);
4494                 hdev->setup = btusb_setup_realtek;
4495                 hdev->shutdown = btrtl_shutdown_realtek;
4496                 hdev->cmd_timeout = btusb_rtl_cmd_timeout;
4497                 hdev->hw_error = btusb_rtl_hw_error;
4498
4499                 /* Realtek devices need to set remote wakeup on auto-suspend */
4500                 set_bit(BTUSB_WAKEUP_AUTOSUSPEND, &data->flags);
4501                 set_bit(BTUSB_USE_ALT3_FOR_WBS, &data->flags);
4502         }
4503
4504         if (id->driver_info & BTUSB_ACTIONS_SEMI) {
4505                 /* Support is advertised, but not implemented */
4506                 set_bit(HCI_QUIRK_BROKEN_ERR_DATA_REPORTING, &hdev->quirks);
4507                 set_bit(HCI_QUIRK_BROKEN_READ_TRANSMIT_POWER, &hdev->quirks);
4508                 set_bit(HCI_QUIRK_BROKEN_SET_RPA_TIMEOUT, &hdev->quirks);
4509                 set_bit(HCI_QUIRK_BROKEN_EXT_SCAN, &hdev->quirks);
4510         }
4511
4512         if (!reset)
4513                 set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
4514
4515         if (force_scofix || id->driver_info & BTUSB_WRONG_SCO_MTU) {
4516                 if (!disable_scofix)
4517                         set_bit(HCI_QUIRK_FIXUP_BUFFER_SIZE, &hdev->quirks);
4518         }
4519
4520         if (id->driver_info & BTUSB_BROKEN_ISOC)
4521                 data->isoc = NULL;
4522
4523         if (id->driver_info & BTUSB_WIDEBAND_SPEECH)
4524                 set_bit(HCI_QUIRK_WIDEBAND_SPEECH_SUPPORTED, &hdev->quirks);
4525
4526         if (id->driver_info & BTUSB_VALID_LE_STATES)
4527                 set_bit(HCI_QUIRK_VALID_LE_STATES, &hdev->quirks);
4528
4529         if (id->driver_info & BTUSB_DIGIANSWER) {
4530                 data->cmdreq_type = USB_TYPE_VENDOR;
4531                 set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
4532         }
4533
4534         if (id->driver_info & BTUSB_CSR) {
4535                 struct usb_device *udev = data->udev;
4536                 u16 bcdDevice = le16_to_cpu(udev->descriptor.bcdDevice);
4537
4538                 /* Old firmware would otherwise execute USB reset */
4539                 if (bcdDevice < 0x117)
4540                         set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
4541
4542                 /* This must be set first in case we disable it for fakes */
4543                 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks);
4544
4545                 /* Fake CSR devices with broken commands */
4546                 if (le16_to_cpu(udev->descriptor.idVendor)  == 0x0a12 &&
4547                     le16_to_cpu(udev->descriptor.idProduct) == 0x0001)
4548                         hdev->setup = btusb_setup_csr;
4549         }
4550
4551         if (id->driver_info & BTUSB_SNIFFER) {
4552                 struct usb_device *udev = data->udev;
4553
4554                 /* New sniffer firmware has crippled HCI interface */
4555                 if (le16_to_cpu(udev->descriptor.bcdDevice) > 0x997)
4556                         set_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks);
4557         }
4558
4559         if (id->driver_info & BTUSB_INTEL_BOOT) {
4560                 /* A bug in the bootloader causes that interrupt interface is
4561                  * only enabled after receiving SetInterface(0, AltSetting=0).
4562                  */
4563                 err = usb_set_interface(data->udev, 0, 0);
4564                 if (err < 0) {
4565                         BT_ERR("failed to set interface 0, alt 0 %d", err);
4566                         goto out_free_dev;
4567                 }
4568         }
4569
4570         if (data->isoc) {
4571                 err = usb_driver_claim_interface(&btusb_driver,
4572                                                  data->isoc, data);
4573                 if (err < 0)
4574                         goto out_free_dev;
4575         }
4576
4577         if (IS_ENABLED(CONFIG_BT_HCIBTUSB_BCM) && data->diag) {
4578                 if (!usb_driver_claim_interface(&btusb_driver,
4579                                                 data->diag, data))
4580                         __set_diag_interface(hdev);
4581                 else
4582                         data->diag = NULL;
4583         }
4584
4585         if (enable_autosuspend)
4586                 usb_enable_autosuspend(data->udev);
4587
4588         data->poll_sync = enable_poll_sync;
4589
4590         err = hci_register_dev(hdev);
4591         if (err < 0)
4592                 goto out_free_dev;
4593
4594         usb_set_intfdata(intf, data);
4595
4596         debugfs_create_file("force_poll_sync", 0644, hdev->debugfs, data,
4597                             &force_poll_sync_fops);
4598
4599         return 0;
4600
4601 out_free_dev:
4602         if (data->reset_gpio)
4603                 gpiod_put(data->reset_gpio);
4604         hci_free_dev(hdev);
4605         return err;
4606 }
4607
4608 static void btusb_disconnect(struct usb_interface *intf)
4609 {
4610         struct btusb_data *data = usb_get_intfdata(intf);
4611         struct hci_dev *hdev;
4612
4613         BT_DBG("intf %p", intf);
4614
4615         if (!data)
4616                 return;
4617
4618         hdev = data->hdev;
4619         usb_set_intfdata(data->intf, NULL);
4620
4621         if (data->isoc)
4622                 usb_set_intfdata(data->isoc, NULL);
4623
4624         if (data->diag)
4625                 usb_set_intfdata(data->diag, NULL);
4626
4627         hci_unregister_dev(hdev);
4628
4629         if (intf == data->intf) {
4630                 if (data->isoc)
4631                         usb_driver_release_interface(&btusb_driver, data->isoc);
4632                 if (data->diag)
4633                         usb_driver_release_interface(&btusb_driver, data->diag);
4634         } else if (intf == data->isoc) {
4635                 if (data->diag)
4636                         usb_driver_release_interface(&btusb_driver, data->diag);
4637                 usb_driver_release_interface(&btusb_driver, data->intf);
4638         } else if (intf == data->diag) {
4639                 usb_driver_release_interface(&btusb_driver, data->intf);
4640                 if (data->isoc)
4641                         usb_driver_release_interface(&btusb_driver, data->isoc);
4642         }
4643
4644         if (data->oob_wake_irq)
4645                 device_init_wakeup(&data->udev->dev, false);
4646
4647         if (data->reset_gpio)
4648                 gpiod_put(data->reset_gpio);
4649
4650         hci_free_dev(hdev);
4651 }
4652
4653 #ifdef CONFIG_PM
4654 static int btusb_suspend(struct usb_interface *intf, pm_message_t message)
4655 {
4656         struct btusb_data *data = usb_get_intfdata(intf);
4657
4658         BT_DBG("intf %p", intf);
4659
4660         if (data->suspend_count++)
4661                 return 0;
4662
4663         spin_lock_irq(&data->txlock);
4664         if (!(PMSG_IS_AUTO(message) && data->tx_in_flight)) {
4665                 set_bit(BTUSB_SUSPENDING, &data->flags);
4666                 spin_unlock_irq(&data->txlock);
4667         } else {
4668                 spin_unlock_irq(&data->txlock);
4669                 data->suspend_count--;
4670                 return -EBUSY;
4671         }
4672
4673         cancel_work_sync(&data->work);
4674
4675         btusb_stop_traffic(data);
4676         usb_kill_anchored_urbs(&data->tx_anchor);
4677
4678         if (data->oob_wake_irq && device_may_wakeup(&data->udev->dev)) {
4679                 set_bit(BTUSB_OOB_WAKE_ENABLED, &data->flags);
4680                 enable_irq_wake(data->oob_wake_irq);
4681                 enable_irq(data->oob_wake_irq);
4682         }
4683
4684         /* For global suspend, Realtek devices lose the loaded fw
4685          * in them. But for autosuspend, firmware should remain.
4686          * Actually, it depends on whether the usb host sends
4687          * set feature (enable wakeup) or not.
4688          */
4689         if (test_bit(BTUSB_WAKEUP_AUTOSUSPEND, &data->flags)) {
4690                 if (PMSG_IS_AUTO(message) &&
4691                     device_can_wakeup(&data->udev->dev))
4692                         data->udev->do_remote_wakeup = 1;
4693                 else if (!PMSG_IS_AUTO(message) &&
4694                          !device_may_wakeup(&data->udev->dev)) {
4695                         data->udev->do_remote_wakeup = 0;
4696                         data->udev->reset_resume = 1;
4697                 }
4698         }
4699
4700         return 0;
4701 }
4702
4703 static void play_deferred(struct btusb_data *data)
4704 {
4705         struct urb *urb;
4706         int err;
4707
4708         while ((urb = usb_get_from_anchor(&data->deferred))) {
4709                 usb_anchor_urb(urb, &data->tx_anchor);
4710
4711                 err = usb_submit_urb(urb, GFP_ATOMIC);
4712                 if (err < 0) {
4713                         if (err != -EPERM && err != -ENODEV)
4714                                 BT_ERR("%s urb %p submission failed (%d)",
4715                                        data->hdev->name, urb, -err);
4716                         kfree(urb->setup_packet);
4717                         usb_unanchor_urb(urb);
4718                         usb_free_urb(urb);
4719                         break;
4720                 }
4721
4722                 data->tx_in_flight++;
4723                 usb_free_urb(urb);
4724         }
4725
4726         /* Cleanup the rest deferred urbs. */
4727         while ((urb = usb_get_from_anchor(&data->deferred))) {
4728                 kfree(urb->setup_packet);
4729                 usb_free_urb(urb);
4730         }
4731 }
4732
4733 static int btusb_resume(struct usb_interface *intf)
4734 {
4735         struct btusb_data *data = usb_get_intfdata(intf);
4736         struct hci_dev *hdev = data->hdev;
4737         int err = 0;
4738
4739         BT_DBG("intf %p", intf);
4740
4741         if (--data->suspend_count)
4742                 return 0;
4743
4744         /* Disable only if not already disabled (keep it balanced) */
4745         if (test_and_clear_bit(BTUSB_OOB_WAKE_ENABLED, &data->flags)) {
4746                 disable_irq(data->oob_wake_irq);
4747                 disable_irq_wake(data->oob_wake_irq);
4748         }
4749
4750         if (!test_bit(HCI_RUNNING, &hdev->flags))
4751                 goto done;
4752
4753         if (test_bit(BTUSB_INTR_RUNNING, &data->flags)) {
4754                 err = btusb_submit_intr_urb(hdev, GFP_NOIO);
4755                 if (err < 0) {
4756                         clear_bit(BTUSB_INTR_RUNNING, &data->flags);
4757                         goto failed;
4758                 }
4759         }
4760
4761         if (test_bit(BTUSB_BULK_RUNNING, &data->flags)) {
4762                 err = btusb_submit_bulk_urb(hdev, GFP_NOIO);
4763                 if (err < 0) {
4764                         clear_bit(BTUSB_BULK_RUNNING, &data->flags);
4765                         goto failed;
4766                 }
4767
4768                 btusb_submit_bulk_urb(hdev, GFP_NOIO);
4769         }
4770
4771         if (test_bit(BTUSB_ISOC_RUNNING, &data->flags)) {
4772                 if (btusb_submit_isoc_urb(hdev, GFP_NOIO) < 0)
4773                         clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
4774                 else
4775                         btusb_submit_isoc_urb(hdev, GFP_NOIO);
4776         }
4777
4778         spin_lock_irq(&data->txlock);
4779         play_deferred(data);
4780         clear_bit(BTUSB_SUSPENDING, &data->flags);
4781         spin_unlock_irq(&data->txlock);
4782         schedule_work(&data->work);
4783
4784         return 0;
4785
4786 failed:
4787         usb_scuttle_anchored_urbs(&data->deferred);
4788 done:
4789         spin_lock_irq(&data->txlock);
4790         clear_bit(BTUSB_SUSPENDING, &data->flags);
4791         spin_unlock_irq(&data->txlock);
4792
4793         return err;
4794 }
4795 #endif
4796
4797 #ifdef CONFIG_DEV_COREDUMP
4798 static void btusb_coredump(struct device *dev)
4799 {
4800         struct btusb_data *data = dev_get_drvdata(dev);
4801         struct hci_dev *hdev = data->hdev;
4802
4803         if (hdev->dump.coredump)
4804                 hdev->dump.coredump(hdev);
4805 }
4806 #endif
4807
4808 static struct usb_driver btusb_driver = {
4809         .name           = "btusb",
4810         .probe          = btusb_probe,
4811         .disconnect     = btusb_disconnect,
4812 #ifdef CONFIG_PM
4813         .suspend        = btusb_suspend,
4814         .resume         = btusb_resume,
4815 #endif
4816         .id_table       = btusb_table,
4817         .supports_autosuspend = 1,
4818         .disable_hub_initiated_lpm = 1,
4819
4820 #ifdef CONFIG_DEV_COREDUMP
4821         .drvwrap = {
4822                 .driver = {
4823                         .coredump = btusb_coredump,
4824                 },
4825         },
4826 #endif
4827 };
4828
4829 module_usb_driver(btusb_driver);
4830
4831 module_param(disable_scofix, bool, 0644);
4832 MODULE_PARM_DESC(disable_scofix, "Disable fixup of wrong SCO buffer size");
4833
4834 module_param(force_scofix, bool, 0644);
4835 MODULE_PARM_DESC(force_scofix, "Force fixup of wrong SCO buffers size");
4836
4837 module_param(enable_autosuspend, bool, 0644);
4838 MODULE_PARM_DESC(enable_autosuspend, "Enable USB autosuspend by default");
4839
4840 module_param(reset, bool, 0644);
4841 MODULE_PARM_DESC(reset, "Send HCI reset command on initialization");
4842
4843 MODULE_AUTHOR("Marcel Holtmann <marcel@holtmann.org>");
4844 MODULE_DESCRIPTION("Generic Bluetooth USB driver ver " VERSION);
4845 MODULE_VERSION(VERSION);
4846 MODULE_LICENSE("GPL");