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