drivers/bluetooth/btusb.c

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