drivers/bluetooth/btusb.c

   1 /*
   2  *
   3  *  Generic Bluetooth USB driver
   4  *
   5  *  Copyright (C) 2005-2008  Marcel Holtmann <[email protected]>
   6  *
   7  *
   8  *  This program is free software; you can redistribute it and/or modify
   9  *  it under the terms of the GNU General Public License as published by
  10  *  the Free Software Foundation; either version 2 of the License, or
  11  *  (at your option) any later version.
  12  *
  13  *  This program is distributed in the hope that it will be useful,
  14  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16  *  GNU General Public License for more details.
  17  *
  18  *  You should have received a copy of the GNU General Public License
  19  *  along with this program; if not, write to the Free Software
  20  *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  21  *
  22  */
  23
  24 #include <linux/module.h>
  25 #include <linux/usb.h>
  26 #include <linux/firmware.h>
  27 #include <linux/of_device.h>
  28 #include <linux/of_irq.h>
  29 #include <linux/suspend.h>
  30 #include <asm/unaligned.h>
  31
  32 #include <net/bluetooth/bluetooth.h>
  33 #include <net/bluetooth/hci_core.h>
  34
  35 #include "btintel.h"
  36 #include "btbcm.h"
  37 #include "btrtl.h"
  38
  39 #define VERSION "0.8"
  40
  41 static bool disable_scofix;
  42 static bool force_scofix;
  43
  44 static bool reset = true;
  45
  46 static struct usb_driver btusb_driver;
  47
  48 #define BTUSB_IGNORE            0x01
  49 #define BTUSB_DIGIANSWER        0x02
  50 #define BTUSB_CSR               0x04
  51 #define BTUSB_SNIFFER           0x08
  52 #define BTUSB_BCM92035          0x10
  53 #define BTUSB_BROKEN_ISOC       0x20
  54 #define BTUSB_WRONG_SCO_MTU     0x40
  55 #define BTUSB_ATH3012           0x80
  56 #define BTUSB_INTEL             0x100
  57 #define BTUSB_INTEL_BOOT        0x200
  58 #define BTUSB_BCM_PATCHRAM      0x400
  59 #define BTUSB_MARVELL           0x800
  60 #define BTUSB_SWAVE             0x1000
  61 #define BTUSB_INTEL_NEW         0x2000
  62 #define BTUSB_AMP               0x4000
  63 #define BTUSB_QCA_ROME          0x8000
  64 #define BTUSB_BCM_APPLE         0x10000
  65 #define BTUSB_REALTEK           0x20000
  66 #define BTUSB_BCM2045           0x40000
  67 #define BTUSB_IFNUM_2           0x80000
  68 #define BTUSB_CW6622            0x100000
  69
  70 static const struct usb_device_id btusb_table[] = {
  71         /* Generic Bluetooth USB device */
  72         { USB_DEVICE_INFO(0xe0, 0x01, 0x01) },
  73
  74         /* Generic Bluetooth AMP device */
  75         { USB_DEVICE_INFO(0xe0, 0x01, 0x04), .driver_info = BTUSB_AMP },
  76
  77         /* Generic Bluetooth USB interface */
  78         { USB_INTERFACE_INFO(0xe0, 0x01, 0x01) },
  79
  80         /* Apple-specific (Broadcom) devices */
  81         { USB_VENDOR_AND_INTERFACE_INFO(0x05ac, 0xff, 0x01, 0x01),
  82           .driver_info = BTUSB_BCM_APPLE | BTUSB_IFNUM_2 },
  83
  84         /* MediaTek MT76x0E */
  85         { USB_DEVICE(0x0e8d, 0x763f) },
  86
  87         /* Broadcom SoftSailing reporting vendor specific */
  88         { USB_DEVICE(0x0a5c, 0x21e1) },
  89
  90         /* Apple MacBookPro 7,1 */
  91         { USB_DEVICE(0x05ac, 0x8213) },
  92
  93         /* Apple iMac11,1 */
  94         { USB_DEVICE(0x05ac, 0x8215) },
  95
  96         /* Apple MacBookPro6,2 */
  97         { USB_DEVICE(0x05ac, 0x8218) },
  98
  99         /* Apple MacBookAir3,1, MacBookAir3,2 */
 100         { USB_DEVICE(0x05ac, 0x821b) },
 101
 102         /* Apple MacBookAir4,1 */
 103         { USB_DEVICE(0x05ac, 0x821f) },
 104
 105         /* Apple MacBookPro8,2 */
 106         { USB_DEVICE(0x05ac, 0x821a) },
 107
 108         /* Apple MacMini5,1 */
 109         { USB_DEVICE(0x05ac, 0x8281) },
 110
 111         /* AVM BlueFRITZ! USB v2.0 */
 112         { USB_DEVICE(0x057c, 0x3800), .driver_info = BTUSB_SWAVE },
 113
 114         /* Bluetooth Ultraport Module from IBM */
 115         { USB_DEVICE(0x04bf, 0x030a) },
 116
 117         /* ALPS Modules with non-standard id */
 118         { USB_DEVICE(0x044e, 0x3001) },
 119         { USB_DEVICE(0x044e, 0x3002) },
 120
 121         /* Ericsson with non-standard id */
 122         { USB_DEVICE(0x0bdb, 0x1002) },
 123
 124         /* Canyon CN-BTU1 with HID interfaces */
 125         { USB_DEVICE(0x0c10, 0x0000) },
 126
 127         /* Broadcom BCM20702A0 */
 128         { USB_DEVICE(0x413c, 0x8197) },
 129
 130         /* Broadcom BCM20702B0 (Dynex/Insignia) */
 131         { USB_DEVICE(0x19ff, 0x0239), .driver_info = BTUSB_BCM_PATCHRAM },
 132
 133         /* Broadcom BCM43142A0 (Foxconn/Lenovo) */
 134         { USB_VENDOR_AND_INTERFACE_INFO(0x105b, 0xff, 0x01, 0x01),
 135           .driver_info = BTUSB_BCM_PATCHRAM },
 136
 137         /* Broadcom BCM920703 (HTC Vive) */
 138         { USB_VENDOR_AND_INTERFACE_INFO(0x0bb4, 0xff, 0x01, 0x01),
 139           .driver_info = BTUSB_BCM_PATCHRAM },
 140
 141         /* Foxconn - Hon Hai */
 142         { USB_VENDOR_AND_INTERFACE_INFO(0x0489, 0xff, 0x01, 0x01),
 143           .driver_info = BTUSB_BCM_PATCHRAM },
 144
 145         /* Lite-On Technology - Broadcom based */
 146         { USB_VENDOR_AND_INTERFACE_INFO(0x04ca, 0xff, 0x01, 0x01),
 147           .driver_info = BTUSB_BCM_PATCHRAM },
 148
 149         /* Broadcom devices with vendor specific id */
 150         { USB_VENDOR_AND_INTERFACE_INFO(0x0a5c, 0xff, 0x01, 0x01),
 151           .driver_info = BTUSB_BCM_PATCHRAM },
 152
 153         /* ASUSTek Computer - Broadcom based */
 154         { USB_VENDOR_AND_INTERFACE_INFO(0x0b05, 0xff, 0x01, 0x01),
 155           .driver_info = BTUSB_BCM_PATCHRAM },
 156
 157         /* Belkin F8065bf - Broadcom based */
 158         { USB_VENDOR_AND_INTERFACE_INFO(0x050d, 0xff, 0x01, 0x01),
 159           .driver_info = BTUSB_BCM_PATCHRAM },
 160
 161         /* IMC Networks - Broadcom based */
 162         { USB_VENDOR_AND_INTERFACE_INFO(0x13d3, 0xff, 0x01, 0x01),
 163           .driver_info = BTUSB_BCM_PATCHRAM },
 164
 165         /* Dell Computer - Broadcom based  */
 166         { USB_VENDOR_AND_INTERFACE_INFO(0x413c, 0xff, 0x01, 0x01),
 167           .driver_info = BTUSB_BCM_PATCHRAM },
 168
 169         /* Toshiba Corp - Broadcom based */
 170         { USB_VENDOR_AND_INTERFACE_INFO(0x0930, 0xff, 0x01, 0x01),
 171           .driver_info = BTUSB_BCM_PATCHRAM },
 172
 173         /* Intel Bluetooth USB Bootloader (RAM module) */
 174         { USB_DEVICE(0x8087, 0x0a5a),
 175           .driver_info = BTUSB_INTEL_BOOT | BTUSB_BROKEN_ISOC },
 176
 177         { }     /* Terminating entry */
 178 };
 179
 180 MODULE_DEVICE_TABLE(usb, btusb_table);
 181
 182 static const struct usb_device_id blacklist_table[] = {
 183         /* CSR BlueCore devices */
 184         { USB_DEVICE(0x0a12, 0x0001), .driver_info = BTUSB_CSR },
 185
 186         /* Broadcom BCM2033 without firmware */
 187         { USB_DEVICE(0x0a5c, 0x2033), .driver_info = BTUSB_IGNORE },
 188
 189         /* Broadcom BCM2045 devices */
 190         { USB_DEVICE(0x0a5c, 0x2045), .driver_info = BTUSB_BCM2045 },
 191
 192         /* Atheros 3011 with sflash firmware */
 193         { USB_DEVICE(0x0489, 0xe027), .driver_info = BTUSB_IGNORE },
 194         { USB_DEVICE(0x0489, 0xe03d), .driver_info = BTUSB_IGNORE },
 195         { USB_DEVICE(0x04f2, 0xaff1), .driver_info = BTUSB_IGNORE },
 196         { USB_DEVICE(0x0930, 0x0215), .driver_info = BTUSB_IGNORE },
 197         { USB_DEVICE(0x0cf3, 0x3002), .driver_info = BTUSB_IGNORE },
 198         { USB_DEVICE(0x0cf3, 0xe019), .driver_info = BTUSB_IGNORE },
 199         { USB_DEVICE(0x13d3, 0x3304), .driver_info = BTUSB_IGNORE },
 200
 201         /* Atheros AR9285 Malbec with sflash firmware */
 202         { USB_DEVICE(0x03f0, 0x311d), .driver_info = BTUSB_IGNORE },
 203
 204         /* Atheros 3012 with sflash firmware */
 205         { USB_DEVICE(0x0489, 0xe04d), .driver_info = BTUSB_ATH3012 },
 206         { USB_DEVICE(0x0489, 0xe04e), .driver_info = BTUSB_ATH3012 },
 207         { USB_DEVICE(0x0489, 0xe056), .driver_info = BTUSB_ATH3012 },
 208         { USB_DEVICE(0x0489, 0xe057), .driver_info = BTUSB_ATH3012 },
 209         { USB_DEVICE(0x0489, 0xe05f), .driver_info = BTUSB_ATH3012 },
 210         { USB_DEVICE(0x0489, 0xe076), .driver_info = BTUSB_ATH3012 },
 211         { USB_DEVICE(0x0489, 0xe078), .driver_info = BTUSB_ATH3012 },
 212         { USB_DEVICE(0x0489, 0xe095), .driver_info = BTUSB_ATH3012 },
 213         { USB_DEVICE(0x04c5, 0x1330), .driver_info = BTUSB_ATH3012 },
 214         { USB_DEVICE(0x04ca, 0x3004), .driver_info = BTUSB_ATH3012 },
 215         { USB_DEVICE(0x04ca, 0x3005), .driver_info = BTUSB_ATH3012 },
 216         { USB_DEVICE(0x04ca, 0x3006), .driver_info = BTUSB_ATH3012 },
 217         { USB_DEVICE(0x04ca, 0x3007), .driver_info = BTUSB_ATH3012 },
 218         { USB_DEVICE(0x04ca, 0x3008), .driver_info = BTUSB_ATH3012 },
 219         { USB_DEVICE(0x04ca, 0x300b), .driver_info = BTUSB_ATH3012 },
 220         { USB_DEVICE(0x04ca, 0x300d), .driver_info = BTUSB_ATH3012 },
 221         { USB_DEVICE(0x04ca, 0x300f), .driver_info = BTUSB_ATH3012 },
 222         { USB_DEVICE(0x04ca, 0x3010), .driver_info = BTUSB_ATH3012 },
 223         { USB_DEVICE(0x04ca, 0x3014), .driver_info = BTUSB_ATH3012 },
 224         { USB_DEVICE(0x04ca, 0x3018), .driver_info = BTUSB_ATH3012 },
 225         { USB_DEVICE(0x0930, 0x0219), .driver_info = BTUSB_ATH3012 },
 226         { USB_DEVICE(0x0930, 0x021c), .driver_info = BTUSB_ATH3012 },
 227         { USB_DEVICE(0x0930, 0x0220), .driver_info = BTUSB_ATH3012 },
 228         { USB_DEVICE(0x0930, 0x0227), .driver_info = BTUSB_ATH3012 },
 229         { USB_DEVICE(0x0b05, 0x17d0), .driver_info = BTUSB_ATH3012 },
 230         { USB_DEVICE(0x0cf3, 0x0036), .driver_info = BTUSB_ATH3012 },
 231         { USB_DEVICE(0x0cf3, 0x3004), .driver_info = BTUSB_ATH3012 },
 232         { USB_DEVICE(0x0cf3, 0x3008), .driver_info = BTUSB_ATH3012 },
 233         { USB_DEVICE(0x0cf3, 0x311d), .driver_info = BTUSB_ATH3012 },
 234         { USB_DEVICE(0x0cf3, 0x311e), .driver_info = BTUSB_ATH3012 },
 235         { USB_DEVICE(0x0cf3, 0x311f), .driver_info = BTUSB_ATH3012 },
 236         { USB_DEVICE(0x0cf3, 0x3121), .driver_info = BTUSB_ATH3012 },
 237         { USB_DEVICE(0x0cf3, 0x817a), .driver_info = BTUSB_ATH3012 },
 238         { USB_DEVICE(0x0cf3, 0x817b), .driver_info = BTUSB_ATH3012 },
 239         { USB_DEVICE(0x0cf3, 0xe003), .driver_info = BTUSB_ATH3012 },
 240         { USB_DEVICE(0x0cf3, 0xe004), .driver_info = BTUSB_ATH3012 },
 241         { USB_DEVICE(0x0cf3, 0xe005), .driver_info = BTUSB_ATH3012 },
 242         { USB_DEVICE(0x0cf3, 0xe006), .driver_info = BTUSB_ATH3012 },
 243         { USB_DEVICE(0x13d3, 0x3362), .driver_info = BTUSB_ATH3012 },
 244         { USB_DEVICE(0x13d3, 0x3375), .driver_info = BTUSB_ATH3012 },
 245         { USB_DEVICE(0x13d3, 0x3393), .driver_info = BTUSB_ATH3012 },
 246         { USB_DEVICE(0x13d3, 0x3395), .driver_info = BTUSB_ATH3012 },
 247         { USB_DEVICE(0x13d3, 0x3402), .driver_info = BTUSB_ATH3012 },
 248         { USB_DEVICE(0x13d3, 0x3408), .driver_info = BTUSB_ATH3012 },
 249         { USB_DEVICE(0x13d3, 0x3423), .driver_info = BTUSB_ATH3012 },
 250         { USB_DEVICE(0x13d3, 0x3432), .driver_info = BTUSB_ATH3012 },
 251         { USB_DEVICE(0x13d3, 0x3472), .driver_info = BTUSB_ATH3012 },
 252         { USB_DEVICE(0x13d3, 0x3474), .driver_info = BTUSB_ATH3012 },
 253         { USB_DEVICE(0x13d3, 0x3487), .driver_info = BTUSB_ATH3012 },
 254         { USB_DEVICE(0x13d3, 0x3490), .driver_info = BTUSB_ATH3012 },
 255
 256         /* Atheros AR5BBU12 with sflash firmware */
 257         { USB_DEVICE(0x0489, 0xe02c), .driver_info = BTUSB_IGNORE },
 258
 259         /* Atheros AR5BBU12 with sflash firmware */
 260         { USB_DEVICE(0x0489, 0xe036), .driver_info = BTUSB_ATH3012 },
 261         { USB_DEVICE(0x0489, 0xe03c), .driver_info = BTUSB_ATH3012 },
 262
 263         /* QCA ROME chipset */
 264         { USB_DEVICE(0x0cf3, 0xe007), .driver_info = BTUSB_QCA_ROME },
 265         { USB_DEVICE(0x0cf3, 0xe009), .driver_info = BTUSB_QCA_ROME },
 266         { USB_DEVICE(0x0cf3, 0xe300), .driver_info = BTUSB_QCA_ROME },
 267         { USB_DEVICE(0x0cf3, 0xe301), .driver_info = BTUSB_QCA_ROME },
 268         { USB_DEVICE(0x0cf3, 0xe360), .driver_info = BTUSB_QCA_ROME },
 269         { USB_DEVICE(0x0489, 0xe092), .driver_info = BTUSB_QCA_ROME },
 270         { USB_DEVICE(0x0489, 0xe09f), .driver_info = BTUSB_QCA_ROME },
 271         { USB_DEVICE(0x0489, 0xe0a2), .driver_info = BTUSB_QCA_ROME },
 272         { USB_DEVICE(0x04ca, 0x3011), .driver_info = BTUSB_QCA_ROME },
 273         { USB_DEVICE(0x04ca, 0x3016), .driver_info = BTUSB_QCA_ROME },
 274
 275         /* Broadcom BCM2035 */
 276         { USB_DEVICE(0x0a5c, 0x2009), .driver_info = BTUSB_BCM92035 },
 277         { USB_DEVICE(0x0a5c, 0x200a), .driver_info = BTUSB_WRONG_SCO_MTU },
 278         { USB_DEVICE(0x0a5c, 0x2035), .driver_info = BTUSB_WRONG_SCO_MTU },
 279
 280         /* Broadcom BCM2045 */
 281         { USB_DEVICE(0x0a5c, 0x2039), .driver_info = BTUSB_WRONG_SCO_MTU },
 282         { USB_DEVICE(0x0a5c, 0x2101), .driver_info = BTUSB_WRONG_SCO_MTU },
 283
 284         /* IBM/Lenovo ThinkPad with Broadcom chip */
 285         { USB_DEVICE(0x0a5c, 0x201e), .driver_info = BTUSB_WRONG_SCO_MTU },
 286         { USB_DEVICE(0x0a5c, 0x2110), .driver_info = BTUSB_WRONG_SCO_MTU },
 287
 288         /* HP laptop with Broadcom chip */
 289         { USB_DEVICE(0x03f0, 0x171d), .driver_info = BTUSB_WRONG_SCO_MTU },
 290
 291         /* Dell laptop with Broadcom chip */
 292         { USB_DEVICE(0x413c, 0x8126), .driver_info = BTUSB_WRONG_SCO_MTU },
 293
 294         /* Dell Wireless 370 and 410 devices */
 295         { USB_DEVICE(0x413c, 0x8152), .driver_info = BTUSB_WRONG_SCO_MTU },
 296         { USB_DEVICE(0x413c, 0x8156), .driver_info = BTUSB_WRONG_SCO_MTU },
 297
 298         /* Belkin F8T012 and F8T013 devices */
 299         { USB_DEVICE(0x050d, 0x0012), .driver_info = BTUSB_WRONG_SCO_MTU },
 300         { USB_DEVICE(0x050d, 0x0013), .driver_info = BTUSB_WRONG_SCO_MTU },
 301
 302         /* Asus WL-BTD202 device */
 303         { USB_DEVICE(0x0b05, 0x1715), .driver_info = BTUSB_WRONG_SCO_MTU },
 304
 305         /* Kensington Bluetooth USB adapter */
 306         { USB_DEVICE(0x047d, 0x105e), .driver_info = BTUSB_WRONG_SCO_MTU },
 307
 308         /* RTX Telecom based adapters with buggy SCO support */
 309         { USB_DEVICE(0x0400, 0x0807), .driver_info = BTUSB_BROKEN_ISOC },
 310         { USB_DEVICE(0x0400, 0x080a), .driver_info = BTUSB_BROKEN_ISOC },
 311
 312         /* CONWISE Technology based adapters with buggy SCO support */
 313         { USB_DEVICE(0x0e5e, 0x6622),
 314           .driver_info = BTUSB_BROKEN_ISOC | BTUSB_CW6622},
 315
 316         /* Roper Class 1 Bluetooth Dongle (Silicon Wave based) */
 317         { USB_DEVICE(0x1310, 0x0001), .driver_info = BTUSB_SWAVE },
 318
 319         /* Digianswer devices */
 320         { USB_DEVICE(0x08fd, 0x0001), .driver_info = BTUSB_DIGIANSWER },
 321         { USB_DEVICE(0x08fd, 0x0002), .driver_info = BTUSB_IGNORE },
 322
 323         /* CSR BlueCore Bluetooth Sniffer */
 324         { USB_DEVICE(0x0a12, 0x0002),
 325           .driver_info = BTUSB_SNIFFER | BTUSB_BROKEN_ISOC },
 326
 327         /* Frontline ComProbe Bluetooth Sniffer */
 328         { USB_DEVICE(0x16d3, 0x0002),
 329           .driver_info = BTUSB_SNIFFER | BTUSB_BROKEN_ISOC },
 330
 331         /* Marvell Bluetooth devices */
 332         { USB_DEVICE(0x1286, 0x2044), .driver_info = BTUSB_MARVELL },
 333         { USB_DEVICE(0x1286, 0x2046), .driver_info = BTUSB_MARVELL },
 334         { USB_DEVICE(0x1286, 0x204e), .driver_info = BTUSB_MARVELL },
 335
 336         /* Intel Bluetooth devices */
 337         { USB_DEVICE(0x8087, 0x0025), .driver_info = BTUSB_INTEL_NEW },
 338         { USB_DEVICE(0x8087, 0x07da), .driver_info = BTUSB_CSR },
 339         { USB_DEVICE(0x8087, 0x07dc), .driver_info = BTUSB_INTEL },
 340         { USB_DEVICE(0x8087, 0x0a2a), .driver_info = BTUSB_INTEL },
 341         { USB_DEVICE(0x8087, 0x0a2b), .driver_info = BTUSB_INTEL_NEW },
 342         { USB_DEVICE(0x8087, 0x0aa7), .driver_info = BTUSB_INTEL },
 343         { USB_DEVICE(0x8087, 0x0aaa), .driver_info = BTUSB_INTEL_NEW },
 344
 345         /* Other Intel Bluetooth devices */
 346         { USB_VENDOR_AND_INTERFACE_INFO(0x8087, 0xe0, 0x01, 0x01),
 347           .driver_info = BTUSB_IGNORE },
 348
 349         /* Realtek Bluetooth devices */
 350         { USB_VENDOR_AND_INTERFACE_INFO(0x0bda, 0xe0, 0x01, 0x01),
 351           .driver_info = BTUSB_REALTEK },
 352
 353         /* Additional Realtek 8723AE Bluetooth devices */
 354         { USB_DEVICE(0x0930, 0x021d), .driver_info = BTUSB_REALTEK },
 355         { USB_DEVICE(0x13d3, 0x3394), .driver_info = BTUSB_REALTEK },
 356
 357         /* Additional Realtek 8723BE Bluetooth devices */
 358         { USB_DEVICE(0x0489, 0xe085), .driver_info = BTUSB_REALTEK },
 359         { USB_DEVICE(0x0489, 0xe08b), .driver_info = BTUSB_REALTEK },
 360         { USB_DEVICE(0x13d3, 0x3410), .driver_info = BTUSB_REALTEK },
 361         { USB_DEVICE(0x13d3, 0x3416), .driver_info = BTUSB_REALTEK },
 362         { USB_DEVICE(0x13d3, 0x3459), .driver_info = BTUSB_REALTEK },
 363         { USB_DEVICE(0x13d3, 0x3494), .driver_info = BTUSB_REALTEK },
 364
 365         /* Additional Realtek 8821AE Bluetooth devices */
 366         { USB_DEVICE(0x0b05, 0x17dc), .driver_info = BTUSB_REALTEK },
 367         { USB_DEVICE(0x13d3, 0x3414), .driver_info = BTUSB_REALTEK },
 368         { USB_DEVICE(0x13d3, 0x3458), .driver_info = BTUSB_REALTEK },
 369         { USB_DEVICE(0x13d3, 0x3461), .driver_info = BTUSB_REALTEK },
 370         { USB_DEVICE(0x13d3, 0x3462), .driver_info = BTUSB_REALTEK },
 371
 372         /* Silicon Wave based devices */
 373         { USB_DEVICE(0x0c10, 0x0000), .driver_info = BTUSB_SWAVE },
 374
 375         { }     /* Terminating entry */
 376 };
 377
 378 #define BTUSB_MAX_ISOC_FRAMES   10
 379
 380 #define BTUSB_INTR_RUNNING      0
 381 #define BTUSB_BULK_RUNNING      1
 382 #define BTUSB_ISOC_RUNNING      2
 383 #define BTUSB_SUSPENDING        3
 384 #define BTUSB_DID_ISO_RESUME    4
 385 #define BTUSB_BOOTLOADER        5
 386 #define BTUSB_DOWNLOADING       6
 387 #define BTUSB_FIRMWARE_LOADED   7
 388 #define BTUSB_FIRMWARE_FAILED   8
 389 #define BTUSB_BOOTING           9
 390 #define BTUSB_RESET_RESUME      10
 391 #define BTUSB_DIAG_RUNNING      11
 392 #define BTUSB_OOB_WAKE_ENABLED  12
 393
 394 struct btusb_data {
 395         struct hci_dev       *hdev;
 396         struct usb_device    *udev;
 397         struct usb_interface *intf;
 398         struct usb_interface *isoc;
 399         struct usb_interface *diag;
 400         unsigned isoc_ifnum;
 401
 402         unsigned long flags;
 403
 404         struct work_struct work;
 405         struct work_struct waker;
 406
 407         struct usb_anchor deferred;
 408         struct usb_anchor tx_anchor;
 409         int tx_in_flight;
 410         spinlock_t txlock;
 411
 412         struct usb_anchor intr_anchor;
 413         struct usb_anchor bulk_anchor;
 414         struct usb_anchor isoc_anchor;
 415         struct usb_anchor diag_anchor;
 416         spinlock_t rxlock;
 417
 418         struct sk_buff *evt_skb;
 419         struct sk_buff *acl_skb;
 420         struct sk_buff *sco_skb;
 421
 422         struct usb_endpoint_descriptor *intr_ep;
 423         struct usb_endpoint_descriptor *bulk_tx_ep;
 424         struct usb_endpoint_descriptor *bulk_rx_ep;
 425         struct usb_endpoint_descriptor *isoc_tx_ep;
 426         struct usb_endpoint_descriptor *isoc_rx_ep;
 427         struct usb_endpoint_descriptor *diag_tx_ep;
 428         struct usb_endpoint_descriptor *diag_rx_ep;
 429
 430         __u8 cmdreq_type;
 431         __u8 cmdreq;
 432
 433         unsigned int sco_num;
 434         int isoc_altsetting;
 435         int suspend_count;
 436
 437         int (*recv_event)(struct hci_dev *hdev, struct sk_buff *skb);
 438         int (*recv_bulk)(struct btusb_data *data, void *buffer, int count);
 439
 440         int (*setup_on_usb)(struct hci_dev *hdev);
 441
 442         int oob_wake_irq;   /* irq for out-of-band wake-on-bt */
 443 };
 444
 445 static inline void btusb_free_frags(struct btusb_data *data)
 446 {
 447         unsigned long flags;
 448
 449         spin_lock_irqsave(&data->rxlock, flags);
 450
 451         kfree_skb(data->evt_skb);
 452         data->evt_skb = NULL;
 453
 454         kfree_skb(data->acl_skb);
 455         data->acl_skb = NULL;
 456
 457         kfree_skb(data->sco_skb);
 458         data->sco_skb = NULL;
 459
 460         spin_unlock_irqrestore(&data->rxlock, flags);
 461 }
 462
 463 static int btusb_recv_intr(struct btusb_data *data, void *buffer, int count)
 464 {
 465         struct sk_buff *skb;
 466         int err = 0;
 467
 468         spin_lock(&data->rxlock);
 469         skb = data->evt_skb;
 470
 471         while (count) {
 472                 int len;
 473
 474                 if (!skb) {
 475                         skb = bt_skb_alloc(HCI_MAX_EVENT_SIZE, GFP_ATOMIC);
 476                         if (!skb) {
 477                                 err = -ENOMEM;
 478                                 break;
 479                         }
 480
 481                         hci_skb_pkt_type(skb) = HCI_EVENT_PKT;
 482                         hci_skb_expect(skb) = HCI_EVENT_HDR_SIZE;
 483                 }
 484
 485                 len = min_t(uint, hci_skb_expect(skb), count);
 486                 skb_put_data(skb, buffer, len);
 487
 488                 count -= len;
 489                 buffer += len;
 490                 hci_skb_expect(skb) -= len;
 491
 492                 if (skb->len == HCI_EVENT_HDR_SIZE) {
 493                         /* Complete event header */
 494                         hci_skb_expect(skb) = hci_event_hdr(skb)->plen;
 495
 496                         if (skb_tailroom(skb) < hci_skb_expect(skb)) {
 497                                 kfree_skb(skb);
 498                                 skb = NULL;
 499
 500                                 err = -EILSEQ;
 501                                 break;
 502                         }
 503                 }
 504
 505                 if (!hci_skb_expect(skb)) {
 506                         /* Complete frame */
 507                         data->recv_event(data->hdev, skb);
 508                         skb = NULL;
 509                 }
 510         }
 511
 512         data->evt_skb = skb;
 513         spin_unlock(&data->rxlock);
 514
 515         return err;
 516 }
 517
 518 static int btusb_recv_bulk(struct btusb_data *data, void *buffer, int count)
 519 {
 520         struct sk_buff *skb;
 521         int err = 0;
 522
 523         spin_lock(&data->rxlock);
 524         skb = data->acl_skb;
 525
 526         while (count) {
 527                 int len;
 528
 529                 if (!skb) {
 530                         skb = bt_skb_alloc(HCI_MAX_FRAME_SIZE, GFP_ATOMIC);
 531                         if (!skb) {
 532                                 err = -ENOMEM;
 533                                 break;
 534                         }
 535
 536                         hci_skb_pkt_type(skb) = HCI_ACLDATA_PKT;
 537                         hci_skb_expect(skb) = HCI_ACL_HDR_SIZE;
 538                 }
 539
 540                 len = min_t(uint, hci_skb_expect(skb), count);
 541                 skb_put_data(skb, buffer, len);
 542
 543                 count -= len;
 544                 buffer += len;
 545                 hci_skb_expect(skb) -= len;
 546
 547                 if (skb->len == HCI_ACL_HDR_SIZE) {
 548                         __le16 dlen = hci_acl_hdr(skb)->dlen;
 549
 550                         /* Complete ACL header */
 551                         hci_skb_expect(skb) = __le16_to_cpu(dlen);
 552
 553                         if (skb_tailroom(skb) < hci_skb_expect(skb)) {
 554                                 kfree_skb(skb);
 555                                 skb = NULL;
 556
 557                                 err = -EILSEQ;
 558                                 break;
 559                         }
 560                 }
 561
 562                 if (!hci_skb_expect(skb)) {
 563                         /* Complete frame */
 564                         hci_recv_frame(data->hdev, skb);
 565                         skb = NULL;
 566                 }
 567         }
 568
 569         data->acl_skb = skb;
 570         spin_unlock(&data->rxlock);
 571
 572         return err;
 573 }
 574
 575 static int btusb_recv_isoc(struct btusb_data *data, void *buffer, int count)
 576 {
 577         struct sk_buff *skb;
 578         int err = 0;
 579
 580         spin_lock(&data->rxlock);
 581         skb = data->sco_skb;
 582
 583         while (count) {
 584                 int len;
 585
 586                 if (!skb) {
 587                         skb = bt_skb_alloc(HCI_MAX_SCO_SIZE, GFP_ATOMIC);
 588                         if (!skb) {
 589                                 err = -ENOMEM;
 590                                 break;
 591                         }
 592
 593                         hci_skb_pkt_type(skb) = HCI_SCODATA_PKT;
 594                         hci_skb_expect(skb) = HCI_SCO_HDR_SIZE;
 595                 }
 596
 597                 len = min_t(uint, hci_skb_expect(skb), count);
 598                 skb_put_data(skb, buffer, len);
 599
 600                 count -= len;
 601                 buffer += len;
 602                 hci_skb_expect(skb) -= len;
 603
 604                 if (skb->len == HCI_SCO_HDR_SIZE) {
 605                         /* Complete SCO header */
 606                         hci_skb_expect(skb) = hci_sco_hdr(skb)->dlen;
 607
 608                         if (skb_tailroom(skb) < hci_skb_expect(skb)) {
 609                                 kfree_skb(skb);
 610                                 skb = NULL;
 611
 612                                 err = -EILSEQ;
 613                                 break;
 614                         }
 615                 }
 616
 617                 if (!hci_skb_expect(skb)) {
 618                         /* Complete frame */
 619                         hci_recv_frame(data->hdev, skb);
 620                         skb = NULL;
 621                 }
 622         }
 623
 624         data->sco_skb = skb;
 625         spin_unlock(&data->rxlock);
 626
 627         return err;
 628 }
 629
 630 static void btusb_intr_complete(struct urb *urb)
 631 {
 632         struct hci_dev *hdev = urb->context;
 633         struct btusb_data *data = hci_get_drvdata(hdev);
 634         int err;
 635
 636         BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
 637                urb->actual_length);
 638
 639         if (!test_bit(HCI_RUNNING, &hdev->flags))
 640                 return;
 641
 642         if (urb->status == 0) {
 643                 hdev->stat.byte_rx += urb->actual_length;
 644
 645                 if (btusb_recv_intr(data, urb->transfer_buffer,
 646                                     urb->actual_length) < 0) {
 647                         bt_dev_err(hdev, "corrupted event packet");
 648                         hdev->stat.err_rx++;
 649                 }
 650         } else if (urb->status == -ENOENT) {
 651                 /* Avoid suspend failed when usb_kill_urb */
 652                 return;
 653         }
 654
 655         if (!test_bit(BTUSB_INTR_RUNNING, &data->flags))
 656                 return;
 657
 658         usb_mark_last_busy(data->udev);
 659         usb_anchor_urb(urb, &data->intr_anchor);
 660
 661         err = usb_submit_urb(urb, GFP_ATOMIC);
 662         if (err < 0) {
 663                 /* -EPERM: urb is being killed;
 664                  * -ENODEV: device got disconnected
 665                  */
 666                 if (err != -EPERM && err != -ENODEV)
 667                         bt_dev_err(hdev, "urb %p failed to resubmit (%d)",
 668                                    urb, -err);
 669                 usb_unanchor_urb(urb);
 670         }
 671 }
 672
 673 static int btusb_submit_intr_urb(struct hci_dev *hdev, gfp_t mem_flags)
 674 {
 675         struct btusb_data *data = hci_get_drvdata(hdev);
 676         struct urb *urb;
 677         unsigned char *buf;
 678         unsigned int pipe;
 679         int err, size;
 680
 681         BT_DBG("%s", hdev->name);
 682
 683         if (!data->intr_ep)
 684                 return -ENODEV;
 685
 686         urb = usb_alloc_urb(0, mem_flags);
 687         if (!urb)
 688                 return -ENOMEM;
 689
 690         size = le16_to_cpu(data->intr_ep->wMaxPacketSize);
 691
 692         buf = kmalloc(size, mem_flags);
 693         if (!buf) {
 694                 usb_free_urb(urb);
 695                 return -ENOMEM;
 696         }
 697
 698         pipe = usb_rcvintpipe(data->udev, data->intr_ep->bEndpointAddress);
 699
 700         usb_fill_int_urb(urb, data->udev, pipe, buf, size,
 701                          btusb_intr_complete, hdev, data->intr_ep->bInterval);
 702
 703         urb->transfer_flags |= URB_FREE_BUFFER;
 704
 705         usb_anchor_urb(urb, &data->intr_anchor);
 706
 707         err = usb_submit_urb(urb, mem_flags);
 708         if (err < 0) {
 709                 if (err != -EPERM && err != -ENODEV)
 710                         bt_dev_err(hdev, "urb %p submission failed (%d)",
 711                                    urb, -err);
 712                 usb_unanchor_urb(urb);
 713         }
 714
 715         usb_free_urb(urb);
 716
 717         return err;
 718 }
 719
 720 static void btusb_bulk_complete(struct urb *urb)
 721 {
 722         struct hci_dev *hdev = urb->context;
 723         struct btusb_data *data = hci_get_drvdata(hdev);
 724         int err;
 725
 726         BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
 727                urb->actual_length);
 728
 729         if (!test_bit(HCI_RUNNING, &hdev->flags))
 730                 return;
 731
 732         if (urb->status == 0) {
 733                 hdev->stat.byte_rx += urb->actual_length;
 734
 735                 if (data->recv_bulk(data, urb->transfer_buffer,
 736                                     urb->actual_length) < 0) {
 737                         bt_dev_err(hdev, "corrupted ACL packet");
 738                         hdev->stat.err_rx++;
 739                 }
 740         } else if (urb->status == -ENOENT) {
 741                 /* Avoid suspend failed when usb_kill_urb */
 742                 return;
 743         }
 744
 745         if (!test_bit(BTUSB_BULK_RUNNING, &data->flags))
 746                 return;
 747
 748         usb_anchor_urb(urb, &data->bulk_anchor);
 749         usb_mark_last_busy(data->udev);
 750
 751         err = usb_submit_urb(urb, GFP_ATOMIC);
 752         if (err < 0) {
 753                 /* -EPERM: urb is being killed;
 754                  * -ENODEV: device got disconnected
 755                  */
 756                 if (err != -EPERM && err != -ENODEV)
 757                         bt_dev_err(hdev, "urb %p failed to resubmit (%d)",
 758                                    urb, -err);
 759                 usb_unanchor_urb(urb);
 760         }
 761 }
 762
 763 static int btusb_submit_bulk_urb(struct hci_dev *hdev, gfp_t mem_flags)
 764 {
 765         struct btusb_data *data = hci_get_drvdata(hdev);
 766         struct urb *urb;
 767         unsigned char *buf;
 768         unsigned int pipe;
 769         int err, size = HCI_MAX_FRAME_SIZE;
 770
 771         BT_DBG("%s", hdev->name);
 772
 773         if (!data->bulk_rx_ep)
 774                 return -ENODEV;
 775
 776         urb = usb_alloc_urb(0, mem_flags);
 777         if (!urb)
 778                 return -ENOMEM;
 779
 780         buf = kmalloc(size, mem_flags);
 781         if (!buf) {
 782                 usb_free_urb(urb);
 783                 return -ENOMEM;
 784         }
 785
 786         pipe = usb_rcvbulkpipe(data->udev, data->bulk_rx_ep->bEndpointAddress);
 787
 788         usb_fill_bulk_urb(urb, data->udev, pipe, buf, size,
 789                           btusb_bulk_complete, hdev);
 790
 791         urb->transfer_flags |= URB_FREE_BUFFER;
 792
 793         usb_mark_last_busy(data->udev);
 794         usb_anchor_urb(urb, &data->bulk_anchor);
 795
 796         err = usb_submit_urb(urb, mem_flags);
 797         if (err < 0) {
 798                 if (err != -EPERM && err != -ENODEV)
 799                         bt_dev_err(hdev, "urb %p submission failed (%d)",
 800                                    urb, -err);
 801                 usb_unanchor_urb(urb);
 802         }
 803
 804         usb_free_urb(urb);
 805
 806         return err;
 807 }
 808
 809 static void btusb_isoc_complete(struct urb *urb)
 810 {
 811         struct hci_dev *hdev = urb->context;
 812         struct btusb_data *data = hci_get_drvdata(hdev);
 813         int i, err;
 814
 815         BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
 816                urb->actual_length);
 817
 818         if (!test_bit(HCI_RUNNING, &hdev->flags))
 819                 return;
 820
 821         if (urb->status == 0) {
 822                 for (i = 0; i < urb->number_of_packets; i++) {
 823                         unsigned int offset = urb->iso_frame_desc[i].offset;
 824                         unsigned int length = urb->iso_frame_desc[i].actual_length;
 825
 826                         if (urb->iso_frame_desc[i].status)
 827                                 continue;
 828
 829                         hdev->stat.byte_rx += length;
 830
 831                         if (btusb_recv_isoc(data, urb->transfer_buffer + offset,
 832                                             length) < 0) {
 833                                 bt_dev_err(hdev, "corrupted SCO packet");
 834                                 hdev->stat.err_rx++;
 835                         }
 836                 }
 837         } else if (urb->status == -ENOENT) {
 838                 /* Avoid suspend failed when usb_kill_urb */
 839                 return;
 840         }
 841
 842         if (!test_bit(BTUSB_ISOC_RUNNING, &data->flags))
 843                 return;
 844
 845         usb_anchor_urb(urb, &data->isoc_anchor);
 846
 847         err = usb_submit_urb(urb, GFP_ATOMIC);
 848         if (err < 0) {
 849                 /* -EPERM: urb is being killed;
 850                  * -ENODEV: device got disconnected
 851                  */
 852                 if (err != -EPERM && err != -ENODEV)
 853                         bt_dev_err(hdev, "urb %p failed to resubmit (%d)",
 854                                    urb, -err);
 855                 usb_unanchor_urb(urb);
 856         }
 857 }
 858
 859 static inline void __fill_isoc_descriptor(struct urb *urb, int len, int mtu)
 860 {
 861         int i, offset = 0;
 862
 863         BT_DBG("len %d mtu %d", len, mtu);
 864
 865         for (i = 0; i < BTUSB_MAX_ISOC_FRAMES && len >= mtu;
 866                                         i++, offset += mtu, len -= mtu) {
 867                 urb->iso_frame_desc[i].offset = offset;
 868                 urb->iso_frame_desc[i].length = mtu;
 869         }
 870
 871         if (len && i < BTUSB_MAX_ISOC_FRAMES) {
 872                 urb->iso_frame_desc[i].offset = offset;
 873                 urb->iso_frame_desc[i].length = len;
 874                 i++;
 875         }
 876
 877         urb->number_of_packets = i;
 878 }
 879
 880 static int btusb_submit_isoc_urb(struct hci_dev *hdev, gfp_t mem_flags)
 881 {
 882         struct btusb_data *data = hci_get_drvdata(hdev);
 883         struct urb *urb;
 884         unsigned char *buf;
 885         unsigned int pipe;
 886         int err, size;
 887
 888         BT_DBG("%s", hdev->name);
 889
 890         if (!data->isoc_rx_ep)
 891                 return -ENODEV;
 892
 893         urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, mem_flags);
 894         if (!urb)
 895                 return -ENOMEM;
 896
 897         size = le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize) *
 898                                                 BTUSB_MAX_ISOC_FRAMES;
 899
 900         buf = kmalloc(size, mem_flags);
 901         if (!buf) {
 902                 usb_free_urb(urb);
 903                 return -ENOMEM;
 904         }
 905
 906         pipe = usb_rcvisocpipe(data->udev, data->isoc_rx_ep->bEndpointAddress);
 907
 908         usb_fill_int_urb(urb, data->udev, pipe, buf, size, btusb_isoc_complete,
 909                          hdev, data->isoc_rx_ep->bInterval);
 910
 911         urb->transfer_flags = URB_FREE_BUFFER | URB_ISO_ASAP;
 912
 913         __fill_isoc_descriptor(urb, size,
 914                                le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize));
 915
 916         usb_anchor_urb(urb, &data->isoc_anchor);
 917
 918         err = usb_submit_urb(urb, mem_flags);
 919         if (err < 0) {
 920                 if (err != -EPERM && err != -ENODEV)
 921                         bt_dev_err(hdev, "urb %p submission failed (%d)",
 922                                    urb, -err);
 923                 usb_unanchor_urb(urb);
 924         }
 925
 926         usb_free_urb(urb);
 927
 928         return err;
 929 }
 930
 931 static void btusb_diag_complete(struct urb *urb)
 932 {
 933         struct hci_dev *hdev = urb->context;
 934         struct btusb_data *data = hci_get_drvdata(hdev);
 935         int err;
 936
 937         BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
 938                urb->actual_length);
 939
 940         if (urb->status == 0) {
 941                 struct sk_buff *skb;
 942
 943                 skb = bt_skb_alloc(urb->actual_length, GFP_ATOMIC);
 944                 if (skb) {
 945                         skb_put_data(skb, urb->transfer_buffer,
 946                                      urb->actual_length);
 947                         hci_recv_diag(hdev, skb);
 948                 }
 949         } else if (urb->status == -ENOENT) {
 950                 /* Avoid suspend failed when usb_kill_urb */
 951                 return;
 952         }
 953
 954         if (!test_bit(BTUSB_DIAG_RUNNING, &data->flags))
 955                 return;
 956
 957         usb_anchor_urb(urb, &data->diag_anchor);
 958         usb_mark_last_busy(data->udev);
 959
 960         err = usb_submit_urb(urb, GFP_ATOMIC);
 961         if (err < 0) {
 962                 /* -EPERM: urb is being killed;
 963                  * -ENODEV: device got disconnected
 964                  */
 965                 if (err != -EPERM && err != -ENODEV)
 966                         bt_dev_err(hdev, "urb %p failed to resubmit (%d)",
 967                                    urb, -err);
 968                 usb_unanchor_urb(urb);
 969         }
 970 }
 971
 972 static int btusb_submit_diag_urb(struct hci_dev *hdev, gfp_t mem_flags)
 973 {
 974         struct btusb_data *data = hci_get_drvdata(hdev);
 975         struct urb *urb;
 976         unsigned char *buf;
 977         unsigned int pipe;
 978         int err, size = HCI_MAX_FRAME_SIZE;
 979
 980         BT_DBG("%s", hdev->name);
 981
 982         if (!data->diag_rx_ep)
 983                 return -ENODEV;
 984
 985         urb = usb_alloc_urb(0, mem_flags);
 986         if (!urb)
 987                 return -ENOMEM;
 988
 989         buf = kmalloc(size, mem_flags);
 990         if (!buf) {
 991                 usb_free_urb(urb);
 992                 return -ENOMEM;
 993         }
 994
 995         pipe = usb_rcvbulkpipe(data->udev, data->diag_rx_ep->bEndpointAddress);
 996
 997         usb_fill_bulk_urb(urb, data->udev, pipe, buf, size,
 998                           btusb_diag_complete, hdev);
 999
1000         urb->transfer_flags |= URB_FREE_BUFFER;
1001
1002         usb_mark_last_busy(data->udev);
1003         usb_anchor_urb(urb, &data->diag_anchor);
1004
1005         err = usb_submit_urb(urb, mem_flags);
1006         if (err < 0) {
1007                 if (err != -EPERM && err != -ENODEV)
1008                         bt_dev_err(hdev, "urb %p submission failed (%d)",
1009                                    urb, -err);
1010                 usb_unanchor_urb(urb);
1011         }
1012
1013         usb_free_urb(urb);
1014
1015         return err;
1016 }
1017
1018 static void btusb_tx_complete(struct urb *urb)
1019 {
1020         struct sk_buff *skb = urb->context;
1021         struct hci_dev *hdev = (struct hci_dev *)skb->dev;
1022         struct btusb_data *data = hci_get_drvdata(hdev);
1023
1024         BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
1025                urb->actual_length);
1026
1027         if (!test_bit(HCI_RUNNING, &hdev->flags))
1028                 goto done;
1029
1030         if (!urb->status)
1031                 hdev->stat.byte_tx += urb->transfer_buffer_length;
1032         else
1033                 hdev->stat.err_tx++;
1034
1035 done:
1036         spin_lock(&data->txlock);
1037         data->tx_in_flight--;
1038         spin_unlock(&data->txlock);
1039
1040         kfree(urb->setup_packet);
1041
1042         kfree_skb(skb);
1043 }
1044
1045 static void btusb_isoc_tx_complete(struct urb *urb)
1046 {
1047         struct sk_buff *skb = urb->context;
1048         struct hci_dev *hdev = (struct hci_dev *)skb->dev;
1049
1050         BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status,
1051                urb->actual_length);
1052
1053         if (!test_bit(HCI_RUNNING, &hdev->flags))
1054                 goto done;
1055
1056         if (!urb->status)
1057                 hdev->stat.byte_tx += urb->transfer_buffer_length;
1058         else
1059                 hdev->stat.err_tx++;
1060
1061 done:
1062         kfree(urb->setup_packet);
1063
1064         kfree_skb(skb);
1065 }
1066
1067 static int btusb_open(struct hci_dev *hdev)
1068 {
1069         struct btusb_data *data = hci_get_drvdata(hdev);
1070         int err;
1071
1072         BT_DBG("%s", hdev->name);
1073
1074         err = usb_autopm_get_interface(data->intf);
1075         if (err < 0)
1076                 return err;
1077
1078         /* Patching USB firmware files prior to starting any URBs of HCI path
1079          * It is more safe to use USB bulk channel for downloading USB patch
1080          */
1081         if (data->setup_on_usb) {
1082                 err = data->setup_on_usb(hdev);
1083                 if (err < 0)
1084                         return err;
1085         }
1086
1087         data->intf->needs_remote_wakeup = 1;
1088         /* device specific wakeup source enabled and required for USB
1089          * remote wakeup while host is suspended
1090          */
1091         device_wakeup_enable(&data->udev->dev);
1092
1093         if (test_and_set_bit(BTUSB_INTR_RUNNING, &data->flags))
1094                 goto done;
1095
1096         err = btusb_submit_intr_urb(hdev, GFP_KERNEL);
1097         if (err < 0)
1098                 goto failed;
1099
1100         err = btusb_submit_bulk_urb(hdev, GFP_KERNEL);
1101         if (err < 0) {
1102                 usb_kill_anchored_urbs(&data->intr_anchor);
1103                 goto failed;
1104         }
1105
1106         set_bit(BTUSB_BULK_RUNNING, &data->flags);
1107         btusb_submit_bulk_urb(hdev, GFP_KERNEL);
1108
1109         if (data->diag) {
1110                 if (!btusb_submit_diag_urb(hdev, GFP_KERNEL))
1111                         set_bit(BTUSB_DIAG_RUNNING, &data->flags);
1112         }
1113
1114 done:
1115         usb_autopm_put_interface(data->intf);
1116         return 0;
1117
1118 failed:
1119         clear_bit(BTUSB_INTR_RUNNING, &data->flags);
1120         usb_autopm_put_interface(data->intf);
1121         return err;
1122 }
1123
1124 static void btusb_stop_traffic(struct btusb_data *data)
1125 {
1126         usb_kill_anchored_urbs(&data->intr_anchor);
1127         usb_kill_anchored_urbs(&data->bulk_anchor);
1128         usb_kill_anchored_urbs(&data->isoc_anchor);
1129         usb_kill_anchored_urbs(&data->diag_anchor);
1130 }
1131
1132 static int btusb_close(struct hci_dev *hdev)
1133 {
1134         struct btusb_data *data = hci_get_drvdata(hdev);
1135         int err;
1136
1137         BT_DBG("%s", hdev->name);
1138
1139         cancel_work_sync(&data->work);
1140         cancel_work_sync(&data->waker);
1141
1142         clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
1143         clear_bit(BTUSB_BULK_RUNNING, &data->flags);
1144         clear_bit(BTUSB_INTR_RUNNING, &data->flags);
1145         clear_bit(BTUSB_DIAG_RUNNING, &data->flags);
1146
1147         btusb_stop_traffic(data);
1148         btusb_free_frags(data);
1149
1150         err = usb_autopm_get_interface(data->intf);
1151         if (err < 0)
1152                 goto failed;
1153
1154         data->intf->needs_remote_wakeup = 0;
1155         device_wakeup_disable(&data->udev->dev);
1156         usb_autopm_put_interface(data->intf);
1157
1158 failed:
1159         usb_scuttle_anchored_urbs(&data->deferred);
1160         return 0;
1161 }
1162
1163 static int btusb_flush(struct hci_dev *hdev)
1164 {
1165         struct btusb_data *data = hci_get_drvdata(hdev);
1166
1167         BT_DBG("%s", hdev->name);
1168
1169         usb_kill_anchored_urbs(&data->tx_anchor);
1170         btusb_free_frags(data);
1171
1172         return 0;
1173 }
1174
1175 static struct urb *alloc_ctrl_urb(struct hci_dev *hdev, struct sk_buff *skb)
1176 {
1177         struct btusb_data *data = hci_get_drvdata(hdev);
1178         struct usb_ctrlrequest *dr;
1179         struct urb *urb;
1180         unsigned int pipe;
1181
1182         urb = usb_alloc_urb(0, GFP_KERNEL);
1183         if (!urb)
1184                 return ERR_PTR(-ENOMEM);
1185
1186         dr = kmalloc(sizeof(*dr), GFP_KERNEL);
1187         if (!dr) {
1188                 usb_free_urb(urb);
1189                 return ERR_PTR(-ENOMEM);
1190         }
1191
1192         dr->bRequestType = data->cmdreq_type;
1193         dr->bRequest     = data->cmdreq;
1194         dr->wIndex       = 0;
1195         dr->wValue       = 0;
1196         dr->wLength      = __cpu_to_le16(skb->len);
1197
1198         pipe = usb_sndctrlpipe(data->udev, 0x00);
1199
1200         usb_fill_control_urb(urb, data->udev, pipe, (void *)dr,
1201                              skb->data, skb->len, btusb_tx_complete, skb);
1202
1203         skb->dev = (void *)hdev;
1204
1205         return urb;
1206 }
1207
1208 static struct urb *alloc_bulk_urb(struct hci_dev *hdev, struct sk_buff *skb)
1209 {
1210         struct btusb_data *data = hci_get_drvdata(hdev);
1211         struct urb *urb;
1212         unsigned int pipe;
1213
1214         if (!data->bulk_tx_ep)
1215                 return ERR_PTR(-ENODEV);
1216
1217         urb = usb_alloc_urb(0, GFP_KERNEL);
1218         if (!urb)
1219                 return ERR_PTR(-ENOMEM);
1220
1221         pipe = usb_sndbulkpipe(data->udev, data->bulk_tx_ep->bEndpointAddress);
1222
1223         usb_fill_bulk_urb(urb, data->udev, pipe,
1224                           skb->data, skb->len, btusb_tx_complete, skb);
1225
1226         skb->dev = (void *)hdev;
1227
1228         return urb;
1229 }
1230
1231 static struct urb *alloc_isoc_urb(struct hci_dev *hdev, struct sk_buff *skb)
1232 {
1233         struct btusb_data *data = hci_get_drvdata(hdev);
1234         struct urb *urb;
1235         unsigned int pipe;
1236
1237         if (!data->isoc_tx_ep)
1238                 return ERR_PTR(-ENODEV);
1239
1240         urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, GFP_KERNEL);
1241         if (!urb)
1242                 return ERR_PTR(-ENOMEM);
1243
1244         pipe = usb_sndisocpipe(data->udev, data->isoc_tx_ep->bEndpointAddress);
1245
1246         usb_fill_int_urb(urb, data->udev, pipe,
1247                          skb->data, skb->len, btusb_isoc_tx_complete,
1248                          skb, data->isoc_tx_ep->bInterval);
1249
1250         urb->transfer_flags  = URB_ISO_ASAP;
1251
1252         __fill_isoc_descriptor(urb, skb->len,
1253                                le16_to_cpu(data->isoc_tx_ep->wMaxPacketSize));
1254
1255         skb->dev = (void *)hdev;
1256
1257         return urb;
1258 }
1259
1260 static int submit_tx_urb(struct hci_dev *hdev, struct urb *urb)
1261 {
1262         struct btusb_data *data = hci_get_drvdata(hdev);
1263         int err;
1264
1265         usb_anchor_urb(urb, &data->tx_anchor);
1266
1267         err = usb_submit_urb(urb, GFP_KERNEL);
1268         if (err < 0) {
1269                 if (err != -EPERM && err != -ENODEV)
1270                         bt_dev_err(hdev, "urb %p submission failed (%d)",
1271                                    urb, -err);
1272                 kfree(urb->setup_packet);
1273                 usb_unanchor_urb(urb);
1274         } else {
1275                 usb_mark_last_busy(data->udev);
1276         }
1277
1278         usb_free_urb(urb);
1279         return err;
1280 }
1281
1282 static int submit_or_queue_tx_urb(struct hci_dev *hdev, struct urb *urb)
1283 {
1284         struct btusb_data *data = hci_get_drvdata(hdev);
1285         unsigned long flags;
1286         bool suspending;
1287
1288         spin_lock_irqsave(&data->txlock, flags);
1289         suspending = test_bit(BTUSB_SUSPENDING, &data->flags);
1290         if (!suspending)
1291                 data->tx_in_flight++;
1292         spin_unlock_irqrestore(&data->txlock, flags);
1293
1294         if (!suspending)
1295                 return submit_tx_urb(hdev, urb);
1296
1297         usb_anchor_urb(urb, &data->deferred);
1298         schedule_work(&data->waker);
1299
1300         usb_free_urb(urb);
1301         return 0;
1302 }
1303
1304 static int btusb_send_frame(struct hci_dev *hdev, struct sk_buff *skb)
1305 {
1306         struct urb *urb;
1307
1308         BT_DBG("%s", hdev->name);
1309
1310         switch (hci_skb_pkt_type(skb)) {
1311         case HCI_COMMAND_PKT:
1312                 urb = alloc_ctrl_urb(hdev, skb);
1313                 if (IS_ERR(urb))
1314                         return PTR_ERR(urb);
1315
1316                 hdev->stat.cmd_tx++;
1317                 return submit_or_queue_tx_urb(hdev, urb);
1318
1319         case HCI_ACLDATA_PKT:
1320                 urb = alloc_bulk_urb(hdev, skb);
1321                 if (IS_ERR(urb))
1322                         return PTR_ERR(urb);
1323
1324                 hdev->stat.acl_tx++;
1325                 return submit_or_queue_tx_urb(hdev, urb);
1326
1327         case HCI_SCODATA_PKT:
1328                 if (hci_conn_num(hdev, SCO_LINK) < 1)
1329                         return -ENODEV;
1330
1331                 urb = alloc_isoc_urb(hdev, skb);
1332                 if (IS_ERR(urb))
1333                         return PTR_ERR(urb);
1334
1335                 hdev->stat.sco_tx++;
1336                 return submit_tx_urb(hdev, urb);
1337         }
1338
1339         return -EILSEQ;
1340 }
1341
1342 static void btusb_notify(struct hci_dev *hdev, unsigned int evt)
1343 {
1344         struct btusb_data *data = hci_get_drvdata(hdev);
1345
1346         BT_DBG("%s evt %d", hdev->name, evt);
1347
1348         if (hci_conn_num(hdev, SCO_LINK) != data->sco_num) {
1349                 data->sco_num = hci_conn_num(hdev, SCO_LINK);
1350                 schedule_work(&data->work);
1351         }
1352 }
1353
1354 static inline int __set_isoc_interface(struct hci_dev *hdev, int altsetting)
1355 {
1356         struct btusb_data *data = hci_get_drvdata(hdev);
1357         struct usb_interface *intf = data->isoc;
1358         struct usb_endpoint_descriptor *ep_desc;
1359         int i, err;
1360
1361         if (!data->isoc)
1362                 return -ENODEV;
1363
1364         err = usb_set_interface(data->udev, data->isoc_ifnum, altsetting);
1365         if (err < 0) {
1366                 bt_dev_err(hdev, "setting interface failed (%d)", -err);
1367                 return err;
1368         }
1369
1370         data->isoc_altsetting = altsetting;
1371
1372         data->isoc_tx_ep = NULL;
1373         data->isoc_rx_ep = NULL;
1374
1375         for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
1376                 ep_desc = &intf->cur_altsetting->endpoint[i].desc;
1377
1378                 if (!data->isoc_tx_ep && usb_endpoint_is_isoc_out(ep_desc)) {
1379                         data->isoc_tx_ep = ep_desc;
1380                         continue;
1381                 }
1382
1383                 if (!data->isoc_rx_ep && usb_endpoint_is_isoc_in(ep_desc)) {
1384                         data->isoc_rx_ep = ep_desc;
1385                         continue;
1386                 }
1387         }
1388
1389         if (!data->isoc_tx_ep || !data->isoc_rx_ep) {
1390                 bt_dev_err(hdev, "invalid SCO descriptors");
1391                 return -ENODEV;
1392         }
1393
1394         return 0;
1395 }
1396
1397 static void btusb_work(struct work_struct *work)
1398 {
1399         struct btusb_data *data = container_of(work, struct btusb_data, work);
1400         struct hci_dev *hdev = data->hdev;
1401         int new_alts;
1402         int err;
1403
1404         if (data->sco_num > 0) {
1405                 if (!test_bit(BTUSB_DID_ISO_RESUME, &data->flags)) {
1406                         err = usb_autopm_get_interface(data->isoc ? data->isoc : data->intf);
1407                         if (err < 0) {
1408                                 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
1409                                 usb_kill_anchored_urbs(&data->isoc_anchor);
1410                                 return;
1411                         }
1412
1413                         set_bit(BTUSB_DID_ISO_RESUME, &data->flags);
1414                 }
1415
1416                 if (hdev->voice_setting & 0x0020) {
1417                         static const int alts[3] = { 2, 4, 5 };
1418
1419                         new_alts = alts[data->sco_num - 1];
1420                 } else {
1421                         new_alts = data->sco_num;
1422                 }
1423
1424                 if (data->isoc_altsetting != new_alts) {
1425                         unsigned long flags;
1426
1427                         clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
1428                         usb_kill_anchored_urbs(&data->isoc_anchor);
1429
1430                         /* When isochronous alternate setting needs to be
1431                          * changed, because SCO connection has been added
1432                          * or removed, a packet fragment may be left in the
1433                          * reassembling state. This could lead to wrongly
1434                          * assembled fragments.
1435                          *
1436                          * Clear outstanding fragment when selecting a new
1437                          * alternate setting.
1438                          */
1439                         spin_lock_irqsave(&data->rxlock, flags);
1440                         kfree_skb(data->sco_skb);
1441                         data->sco_skb = NULL;
1442                         spin_unlock_irqrestore(&data->rxlock, flags);
1443
1444                         if (__set_isoc_interface(hdev, new_alts) < 0)
1445                                 return;
1446                 }
1447
1448                 if (!test_and_set_bit(BTUSB_ISOC_RUNNING, &data->flags)) {
1449                         if (btusb_submit_isoc_urb(hdev, GFP_KERNEL) < 0)
1450                                 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
1451                         else
1452                                 btusb_submit_isoc_urb(hdev, GFP_KERNEL);
1453                 }
1454         } else {
1455                 clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
1456                 usb_kill_anchored_urbs(&data->isoc_anchor);
1457
1458                 __set_isoc_interface(hdev, 0);
1459                 if (test_and_clear_bit(BTUSB_DID_ISO_RESUME, &data->flags))
1460                         usb_autopm_put_interface(data->isoc ? data->isoc : data->intf);
1461         }
1462 }
1463
1464 static void btusb_waker(struct work_struct *work)
1465 {
1466         struct btusb_data *data = container_of(work, struct btusb_data, waker);
1467         int err;
1468
1469         err = usb_autopm_get_interface(data->intf);
1470         if (err < 0)
1471                 return;
1472
1473         usb_autopm_put_interface(data->intf);
1474 }
1475
1476 static int btusb_setup_bcm92035(struct hci_dev *hdev)
1477 {
1478         struct sk_buff *skb;
1479         u8 val = 0x00;
1480
1481         BT_DBG("%s", hdev->name);
1482
1483         skb = __hci_cmd_sync(hdev, 0xfc3b, 1, &val, HCI_INIT_TIMEOUT);
1484         if (IS_ERR(skb))
1485                 bt_dev_err(hdev, "BCM92035 command failed (%ld)", PTR_ERR(skb));
1486         else
1487                 kfree_skb(skb);
1488
1489         return 0;
1490 }
1491
1492 static int btusb_setup_csr(struct hci_dev *hdev)
1493 {
1494         struct hci_rp_read_local_version *rp;
1495         struct sk_buff *skb;
1496
1497         BT_DBG("%s", hdev->name);
1498
1499         skb = __hci_cmd_sync(hdev, HCI_OP_READ_LOCAL_VERSION, 0, NULL,
1500                              HCI_INIT_TIMEOUT);
1501         if (IS_ERR(skb)) {
1502                 int err = PTR_ERR(skb);
1503                 bt_dev_err(hdev, "CSR: Local version failed (%d)", err);
1504                 return err;
1505         }
1506
1507         if (skb->len != sizeof(struct hci_rp_read_local_version)) {
1508                 bt_dev_err(hdev, "CSR: Local version length mismatch");
1509                 kfree_skb(skb);
1510                 return -EIO;
1511         }
1512
1513         rp = (struct hci_rp_read_local_version *)skb->data;
1514
1515         /* Detect controllers which aren't real CSR ones. */
1516         if (le16_to_cpu(rp->manufacturer) != 10 ||
1517             le16_to_cpu(rp->lmp_subver) == 0x0c5c) {
1518                 /* Clear the reset quirk since this is not an actual
1519                  * early Bluetooth 1.1 device from CSR.
1520                  */
1521                 clear_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
1522
1523                 /* These fake CSR controllers have all a broken
1524                  * stored link key handling and so just disable it.
1525                  */
1526                 set_bit(HCI_QUIRK_BROKEN_STORED_LINK_KEY, &hdev->quirks);
1527         }
1528
1529         kfree_skb(skb);
1530
1531         return 0;
1532 }
1533
1534 static const struct firmware *btusb_setup_intel_get_fw(struct hci_dev *hdev,
1535                                                        struct intel_version *ver)
1536 {
1537         const struct firmware *fw;
1538         char fwname[64];
1539         int ret;
1540
1541         snprintf(fwname, sizeof(fwname),
1542                  "intel/ibt-hw-%x.%x.%x-fw-%x.%x.%x.%x.%x.bseq",
1543                  ver->hw_platform, ver->hw_variant, ver->hw_revision,
1544                  ver->fw_variant,  ver->fw_revision, ver->fw_build_num,
1545                  ver->fw_build_ww, ver->fw_build_yy);
1546
1547         ret = request_firmware(&fw, fwname, &hdev->dev);
1548         if (ret < 0) {
1549                 if (ret == -EINVAL) {
1550                         BT_ERR("%s Intel firmware file request failed (%d)",
1551                                hdev->name, ret);
1552                         return NULL;
1553                 }
1554
1555                 BT_ERR("%s failed to open Intel firmware file: %s(%d)",
1556                        hdev->name, fwname, ret);
1557
1558                 /* If the correct firmware patch file is not found, use the
1559                  * default firmware patch file instead
1560                  */
1561                 snprintf(fwname, sizeof(fwname), "intel/ibt-hw-%x.%x.bseq",
1562                          ver->hw_platform, ver->hw_variant);
1563                 if (request_firmware(&fw, fwname, &hdev->dev) < 0) {
1564                         BT_ERR("%s failed to open default Intel fw file: %s",
1565                                hdev->name, fwname);
1566                         return NULL;
1567                 }
1568         }
1569
1570         bt_dev_info(hdev, "Intel Bluetooth firmware file: %s", fwname);
1571
1572         return fw;
1573 }
1574
1575 static int btusb_setup_intel_patching(struct hci_dev *hdev,
1576                                       const struct firmware *fw,
1577                                       const u8 **fw_ptr, int *disable_patch)
1578 {
1579         struct sk_buff *skb;
1580         struct hci_command_hdr *cmd;
1581         const u8 *cmd_param;
1582         struct hci_event_hdr *evt = NULL;
1583         const u8 *evt_param = NULL;
1584         int remain = fw->size - (*fw_ptr - fw->data);
1585
1586         /* The first byte indicates the types of the patch command or event.
1587          * 0x01 means HCI command and 0x02 is HCI event. If the first bytes
1588          * in the current firmware buffer doesn't start with 0x01 or
1589          * the size of remain buffer is smaller than HCI command header,
1590          * the firmware file is corrupted and it should stop the patching
1591          * process.
1592          */
1593         if (remain > HCI_COMMAND_HDR_SIZE && *fw_ptr[0] != 0x01) {
1594                 BT_ERR("%s Intel fw corrupted: invalid cmd read", hdev->name);
1595                 return -EINVAL;
1596         }
1597         (*fw_ptr)++;
1598         remain--;
1599
1600         cmd = (struct hci_command_hdr *)(*fw_ptr);
1601         *fw_ptr += sizeof(*cmd);
1602         remain -= sizeof(*cmd);
1603
1604         /* Ensure that the remain firmware data is long enough than the length
1605          * of command parameter. If not, the firmware file is corrupted.
1606          */
1607         if (remain < cmd->plen) {
1608                 BT_ERR("%s Intel fw corrupted: invalid cmd len", hdev->name);
1609                 return -EFAULT;
1610         }
1611
1612         /* If there is a command that loads a patch in the firmware
1613          * file, then enable the patch upon success, otherwise just
1614          * disable the manufacturer mode, for example patch activation
1615          * is not required when the default firmware patch file is used
1616          * because there are no patch data to load.
1617          */
1618         if (*disable_patch && le16_to_cpu(cmd->opcode) == 0xfc8e)
1619                 *disable_patch = 0;
1620
1621         cmd_param = *fw_ptr;
1622         *fw_ptr += cmd->plen;
1623         remain -= cmd->plen;
1624
1625         /* This reads the expected events when the above command is sent to the
1626          * device. Some vendor commands expects more than one events, for
1627          * example command status event followed by vendor specific event.
1628          * For this case, it only keeps the last expected event. so the command
1629          * can be sent with __hci_cmd_sync_ev() which returns the sk_buff of
1630          * last expected event.
1631          */
1632         while (remain > HCI_EVENT_HDR_SIZE && *fw_ptr[0] == 0x02) {
1633                 (*fw_ptr)++;
1634                 remain--;
1635
1636                 evt = (struct hci_event_hdr *)(*fw_ptr);
1637                 *fw_ptr += sizeof(*evt);
1638                 remain -= sizeof(*evt);
1639
1640                 if (remain < evt->plen) {
1641                         BT_ERR("%s Intel fw corrupted: invalid evt len",
1642                                hdev->name);
1643                         return -EFAULT;
1644                 }
1645
1646                 evt_param = *fw_ptr;
1647                 *fw_ptr += evt->plen;
1648                 remain -= evt->plen;
1649         }
1650
1651         /* Every HCI commands in the firmware file has its correspond event.
1652          * If event is not found or remain is smaller than zero, the firmware
1653          * file is corrupted.
1654          */
1655         if (!evt || !evt_param || remain < 0) {
1656                 BT_ERR("%s Intel fw corrupted: invalid evt read", hdev->name);
1657                 return -EFAULT;
1658         }
1659
1660         skb = __hci_cmd_sync_ev(hdev, le16_to_cpu(cmd->opcode), cmd->plen,
1661                                 cmd_param, evt->evt, HCI_INIT_TIMEOUT);
1662         if (IS_ERR(skb)) {
1663                 BT_ERR("%s sending Intel patch command (0x%4.4x) failed (%ld)",
1664                        hdev->name, cmd->opcode, PTR_ERR(skb));
1665                 return PTR_ERR(skb);
1666         }
1667
1668         /* It ensures that the returned event matches the event data read from
1669          * the firmware file. At fist, it checks the length and then
1670          * the contents of the event.
1671          */
1672         if (skb->len != evt->plen) {
1673                 BT_ERR("%s mismatch event length (opcode 0x%4.4x)", hdev->name,
1674                        le16_to_cpu(cmd->opcode));
1675                 kfree_skb(skb);
1676                 return -EFAULT;
1677         }
1678
1679         if (memcmp(skb->data, evt_param, evt->plen)) {
1680                 BT_ERR("%s mismatch event parameter (opcode 0x%4.4x)",
1681                        hdev->name, le16_to_cpu(cmd->opcode));
1682                 kfree_skb(skb);
1683                 return -EFAULT;
1684         }
1685         kfree_skb(skb);
1686
1687         return 0;
1688 }
1689
1690 static int btusb_setup_intel(struct hci_dev *hdev)
1691 {
1692         struct sk_buff *skb;
1693         const struct firmware *fw;
1694         const u8 *fw_ptr;
1695         int disable_patch, err;
1696         struct intel_version ver;
1697
1698         BT_DBG("%s", hdev->name);
1699
1700         /* The controller has a bug with the first HCI command sent to it
1701          * returning number of completed commands as zero. This would stall the
1702          * command processing in the Bluetooth core.
1703          *
1704          * As a workaround, send HCI Reset command first which will reset the
1705          * number of completed commands and allow normal command processing
1706          * from now on.
1707          */
1708         skb = __hci_cmd_sync(hdev, HCI_OP_RESET, 0, NULL, HCI_INIT_TIMEOUT);
1709         if (IS_ERR(skb)) {
1710                 BT_ERR("%s sending initial HCI reset command failed (%ld)",
1711                        hdev->name, PTR_ERR(skb));
1712                 return PTR_ERR(skb);
1713         }
1714         kfree_skb(skb);
1715
1716         /* Read Intel specific controller version first to allow selection of
1717          * which firmware file to load.
1718          *
1719          * The returned information are hardware variant and revision plus
1720          * firmware variant, revision and build number.
1721          */
1722         err = btintel_read_version(hdev, &ver);
1723         if (err)
1724                 return err;
1725
1726         bt_dev_info(hdev, "read Intel version: %02x%02x%02x%02x%02x%02x%02x%02x%02x",
1727                     ver.hw_platform, ver.hw_variant, ver.hw_revision,
1728                     ver.fw_variant,  ver.fw_revision, ver.fw_build_num,
1729                     ver.fw_build_ww, ver.fw_build_yy, ver.fw_patch_num);
1730
1731         /* fw_patch_num indicates the version of patch the device currently
1732          * have. If there is no patch data in the device, it is always 0x00.
1733          * So, if it is other than 0x00, no need to patch the device again.
1734          */
1735         if (ver.fw_patch_num) {
1736                 bt_dev_info(hdev, "Intel device is already patched. "
1737                             "patch num: %02x", ver.fw_patch_num);
1738                 goto complete;
1739         }
1740
1741         /* Opens the firmware patch file based on the firmware version read
1742          * from the controller. If it fails to open the matching firmware
1743          * patch file, it tries to open the default firmware patch file.
1744          * If no patch file is found, allow the device to operate without
1745          * a patch.
1746          */
1747         fw = btusb_setup_intel_get_fw(hdev, &ver);
1748         if (!fw)
1749                 goto complete;
1750         fw_ptr = fw->data;
1751
1752         /* Enable the manufacturer mode of the controller.
1753          * Only while this mode is enabled, the driver can download the
1754          * firmware patch data and configuration parameters.
1755          */
1756         err = btintel_enter_mfg(hdev);
1757         if (err) {
1758                 release_firmware(fw);
1759                 return err;
1760         }
1761
1762         disable_patch = 1;
1763
1764         /* The firmware data file consists of list of Intel specific HCI
1765          * commands and its expected events. The first byte indicates the
1766          * type of the message, either HCI command or HCI event.
1767          *
1768          * It reads the command and its expected event from the firmware file,
1769          * and send to the controller. Once __hci_cmd_sync_ev() returns,
1770          * the returned event is compared with the event read from the firmware
1771          * file and it will continue until all the messages are downloaded to
1772          * the controller.
1773          *
1774          * Once the firmware patching is completed successfully,
1775          * the manufacturer mode is disabled with reset and activating the
1776          * downloaded patch.
1777          *
1778          * If the firmware patching fails, the manufacturer mode is
1779          * disabled with reset and deactivating the patch.
1780          *
1781          * If the default patch file is used, no reset is done when disabling
1782          * the manufacturer.
1783          */
1784         while (fw->size > fw_ptr - fw->data) {
1785                 int ret;
1786
1787                 ret = btusb_setup_intel_patching(hdev, fw, &fw_ptr,
1788                                                  &disable_patch);
1789                 if (ret < 0)
1790                         goto exit_mfg_deactivate;
1791         }
1792
1793         release_firmware(fw);
1794
1795         if (disable_patch)
1796                 goto exit_mfg_disable;
1797
1798         /* Patching completed successfully and disable the manufacturer mode
1799          * with reset and activate the downloaded firmware patches.
1800          */
1801         err = btintel_exit_mfg(hdev, true, true);
1802         if (err)
1803                 return err;
1804
1805         bt_dev_info(hdev, "Intel firmware patch completed and activated");
1806
1807         goto complete;
1808
1809 exit_mfg_disable:
1810         /* Disable the manufacturer mode without reset */
1811         err = btintel_exit_mfg(hdev, false, false);
1812         if (err)
1813                 return err;
1814
1815         bt_dev_info(hdev, "Intel firmware patch completed");
1816
1817         goto complete;
1818
1819 exit_mfg_deactivate:
1820         release_firmware(fw);
1821
1822         /* Patching failed. Disable the manufacturer mode with reset and
1823          * deactivate the downloaded firmware patches.
1824          */
1825         err = btintel_exit_mfg(hdev, true, false);
1826         if (err)
1827                 return err;
1828
1829         bt_dev_info(hdev, "Intel firmware patch completed and deactivated");
1830
1831 complete:
1832         /* Set the event mask for Intel specific vendor events. This enables
1833          * a few extra events that are useful during general operation.
1834          */
1835         btintel_set_event_mask_mfg(hdev, false);
1836
1837         btintel_check_bdaddr(hdev);
1838         return 0;
1839 }
1840
1841 static int inject_cmd_complete(struct hci_dev *hdev, __u16 opcode)
1842 {
1843         struct sk_buff *skb;
1844         struct hci_event_hdr *hdr;
1845         struct hci_ev_cmd_complete *evt;
1846
1847         skb = bt_skb_alloc(sizeof(*hdr) + sizeof(*evt) + 1, GFP_ATOMIC);
1848         if (!skb)
1849                 return -ENOMEM;
1850
1851         hdr = skb_put(skb, sizeof(*hdr));
1852         hdr->evt = HCI_EV_CMD_COMPLETE;
1853         hdr->plen = sizeof(*evt) + 1;
1854
1855         evt = skb_put(skb, sizeof(*evt));
1856         evt->ncmd = 0x01;
1857         evt->opcode = cpu_to_le16(opcode);
1858
1859         skb_put_u8(skb, 0x00);
1860
1861         hci_skb_pkt_type(skb) = HCI_EVENT_PKT;
1862
1863         return hci_recv_frame(hdev, skb);
1864 }
1865
1866 static int btusb_recv_bulk_intel(struct btusb_data *data, void *buffer,
1867                                  int count)
1868 {
1869         /* When the device is in bootloader mode, then it can send
1870          * events via the bulk endpoint. These events are treated the
1871          * same way as the ones received from the interrupt endpoint.
1872          */
1873         if (test_bit(BTUSB_BOOTLOADER, &data->flags))
1874                 return btusb_recv_intr(data, buffer, count);
1875
1876         return btusb_recv_bulk(data, buffer, count);
1877 }
1878
1879 static void btusb_intel_bootup(struct btusb_data *data, const void *ptr,
1880                                unsigned int len)
1881 {
1882         const struct intel_bootup *evt = ptr;
1883
1884         if (len != sizeof(*evt))
1885                 return;
1886
1887         if (test_and_clear_bit(BTUSB_BOOTING, &data->flags)) {
1888                 smp_mb__after_atomic();
1889                 wake_up_bit(&data->flags, BTUSB_BOOTING);
1890         }
1891 }
1892
1893 static void btusb_intel_secure_send_result(struct btusb_data *data,
1894                                            const void *ptr, unsigned int len)
1895 {
1896         const struct intel_secure_send_result *evt = ptr;
1897
1898         if (len != sizeof(*evt))
1899                 return;
1900
1901         if (evt->result)
1902                 set_bit(BTUSB_FIRMWARE_FAILED, &data->flags);
1903
1904         if (test_and_clear_bit(BTUSB_DOWNLOADING, &data->flags) &&
1905             test_bit(BTUSB_FIRMWARE_LOADED, &data->flags)) {
1906                 smp_mb__after_atomic();
1907                 wake_up_bit(&data->flags, BTUSB_DOWNLOADING);
1908         }
1909 }
1910
1911 static int btusb_recv_event_intel(struct hci_dev *hdev, struct sk_buff *skb)
1912 {
1913         struct btusb_data *data = hci_get_drvdata(hdev);
1914
1915         if (test_bit(BTUSB_BOOTLOADER, &data->flags)) {
1916                 struct hci_event_hdr *hdr = (void *)skb->data;
1917
1918                 if (skb->len > HCI_EVENT_HDR_SIZE && hdr->evt == 0xff &&
1919                     hdr->plen > 0) {
1920                         const void *ptr = skb->data + HCI_EVENT_HDR_SIZE + 1;
1921                         unsigned int len = skb->len - HCI_EVENT_HDR_SIZE - 1;
1922
1923                         switch (skb->data[2]) {
1924                         case 0x02:
1925                                 /* When switching to the operational firmware
1926                                  * the device sends a vendor specific event
1927                                  * indicating that the bootup completed.
1928                                  */
1929                                 btusb_intel_bootup(data, ptr, len);
1930                                 break;
1931                         case 0x06:
1932                                 /* When the firmware loading completes the
1933                                  * device sends out a vendor specific event
1934                                  * indicating the result of the firmware
1935                                  * loading.
1936                                  */
1937                                 btusb_intel_secure_send_result(data, ptr, len);
1938                                 break;
1939                         }
1940                 }
1941         }
1942
1943         return hci_recv_frame(hdev, skb);
1944 }
1945
1946 static int btusb_send_frame_intel(struct hci_dev *hdev, struct sk_buff *skb)
1947 {
1948         struct btusb_data *data = hci_get_drvdata(hdev);
1949         struct urb *urb;
1950
1951         BT_DBG("%s", hdev->name);
1952
1953         switch (hci_skb_pkt_type(skb)) {
1954         case HCI_COMMAND_PKT:
1955                 if (test_bit(BTUSB_BOOTLOADER, &data->flags)) {
1956                         struct hci_command_hdr *cmd = (void *)skb->data;
1957                         __u16 opcode = le16_to_cpu(cmd->opcode);
1958
1959                         /* When in bootloader mode and the command 0xfc09
1960                          * is received, it needs to be send down the
1961                          * bulk endpoint. So allocate a bulk URB instead.
1962                          */
1963                         if (opcode == 0xfc09)
1964                                 urb = alloc_bulk_urb(hdev, skb);
1965                         else
1966                                 urb = alloc_ctrl_urb(hdev, skb);
1967
1968                         /* When the 0xfc01 command is issued to boot into
1969                          * the operational firmware, it will actually not
1970                          * send a command complete event. To keep the flow
1971                          * control working inject that event here.
1972                          */
1973                         if (opcode == 0xfc01)
1974                                 inject_cmd_complete(hdev, opcode);
1975                 } else {
1976                         urb = alloc_ctrl_urb(hdev, skb);
1977                 }
1978                 if (IS_ERR(urb))
1979                         return PTR_ERR(urb);
1980
1981                 hdev->stat.cmd_tx++;
1982                 return submit_or_queue_tx_urb(hdev, urb);
1983
1984         case HCI_ACLDATA_PKT:
1985                 urb = alloc_bulk_urb(hdev, skb);
1986                 if (IS_ERR(urb))
1987                         return PTR_ERR(urb);
1988
1989                 hdev->stat.acl_tx++;
1990                 return submit_or_queue_tx_urb(hdev, urb);
1991
1992         case HCI_SCODATA_PKT:
1993                 if (hci_conn_num(hdev, SCO_LINK) < 1)
1994                         return -ENODEV;
1995
1996                 urb = alloc_isoc_urb(hdev, skb);
1997                 if (IS_ERR(urb))
1998                         return PTR_ERR(urb);
1999
2000                 hdev->stat.sco_tx++;
2001                 return submit_tx_urb(hdev, urb);
2002         }
2003
2004         return -EILSEQ;
2005 }
2006
2007 static int btusb_setup_intel_new(struct hci_dev *hdev)
2008 {
2009         static const u8 reset_param[] = { 0x00, 0x01, 0x00, 0x01,
2010                                           0x00, 0x08, 0x04, 0x00 };
2011         struct btusb_data *data = hci_get_drvdata(hdev);
2012         struct sk_buff *skb;
2013         struct intel_version ver;
2014         struct intel_boot_params *params;
2015         const struct firmware *fw;
2016         const u8 *fw_ptr;
2017         u32 frag_len;
2018         char fwname[64];
2019         ktime_t calltime, delta, rettime;
2020         unsigned long long duration;
2021         int err;
2022
2023         BT_DBG("%s", hdev->name);
2024
2025         calltime = ktime_get();
2026
2027         /* Read the Intel version information to determine if the device
2028          * is in bootloader mode or if it already has operational firmware
2029          * loaded.
2030          */
2031         err = btintel_read_version(hdev, &ver);
2032         if (err)
2033                 return err;
2034
2035         /* The hardware platform number has a fixed value of 0x37 and
2036          * for now only accept this single value.
2037          */
2038         if (ver.hw_platform != 0x37) {
2039                 BT_ERR("%s: Unsupported Intel hardware platform (%u)",
2040                        hdev->name, ver.hw_platform);
2041                 return -EINVAL;
2042         }
2043
2044         /* Check for supported iBT hardware variants of this firmware
2045          * loading method.
2046          *
2047          * This check has been put in place to ensure correct forward
2048          * compatibility options when newer hardware variants come along.
2049          */
2050         switch (ver.hw_variant) {
2051         case 0x0b:      /* SfP */
2052         case 0x0c:      /* WsP */
2053         case 0x11:      /* JfP */
2054         case 0x12:      /* ThP */
2055                 break;
2056         default:
2057                 BT_ERR("%s: Unsupported Intel hardware variant (%u)",
2058                        hdev->name, ver.hw_variant);
2059                 return -EINVAL;
2060         }
2061
2062         btintel_version_info(hdev, &ver);
2063
2064         /* The firmware variant determines if the device is in bootloader
2065          * mode or is running operational firmware. The value 0x06 identifies
2066          * the bootloader and the value 0x23 identifies the operational
2067          * firmware.
2068          *
2069          * When the operational firmware is already present, then only
2070          * the check for valid Bluetooth device address is needed. This
2071          * determines if the device will be added as configured or
2072          * unconfigured controller.
2073          *
2074          * It is not possible to use the Secure Boot Parameters in this
2075          * case since that command is only available in bootloader mode.
2076          */
2077         if (ver.fw_variant == 0x23) {
2078                 clear_bit(BTUSB_BOOTLOADER, &data->flags);
2079                 btintel_check_bdaddr(hdev);
2080                 return 0;
2081         }
2082
2083         /* If the device is not in bootloader mode, then the only possible
2084          * choice is to return an error and abort the device initialization.
2085          */
2086         if (ver.fw_variant != 0x06) {
2087                 BT_ERR("%s: Unsupported Intel firmware variant (%u)",
2088                        hdev->name, ver.fw_variant);
2089                 return -ENODEV;
2090         }
2091
2092         /* Read the secure boot parameters to identify the operating
2093          * details of the bootloader.
2094          */
2095         skb = __hci_cmd_sync(hdev, 0xfc0d, 0, NULL, HCI_INIT_TIMEOUT);
2096         if (IS_ERR(skb)) {
2097                 BT_ERR("%s: Reading Intel boot parameters failed (%ld)",
2098                        hdev->name, PTR_ERR(skb));
2099                 return PTR_ERR(skb);
2100         }
2101
2102         if (skb->len != sizeof(*params)) {
2103                 BT_ERR("%s: Intel boot parameters size mismatch", hdev->name);
2104                 kfree_skb(skb);
2105                 return -EILSEQ;
2106         }
2107
2108         params = (struct intel_boot_params *)skb->data;
2109
2110         bt_dev_info(hdev, "Device revision is %u",
2111                     le16_to_cpu(params->dev_revid));
2112
2113         bt_dev_info(hdev, "Secure boot is %s",
2114                     params->secure_boot ? "enabled" : "disabled");
2115
2116         bt_dev_info(hdev, "OTP lock is %s",
2117                     params->otp_lock ? "enabled" : "disabled");
2118
2119         bt_dev_info(hdev, "API lock is %s",
2120                     params->api_lock ? "enabled" : "disabled");
2121
2122         bt_dev_info(hdev, "Debug lock is %s",
2123                     params->debug_lock ? "enabled" : "disabled");
2124
2125         bt_dev_info(hdev, "Minimum firmware build %u week %u %u",
2126                     params->min_fw_build_nn, params->min_fw_build_cw,
2127                     2000 + params->min_fw_build_yy);
2128
2129         /* It is required that every single firmware fragment is acknowledged
2130          * with a command complete event. If the boot parameters indicate
2131          * that this bootloader does not send them, then abort the setup.
2132          */
2133         if (params->limited_cce != 0x00) {
2134                 BT_ERR("%s: Unsupported Intel firmware loading method (%u)",
2135                        hdev->name, params->limited_cce);
2136                 kfree_skb(skb);
2137                 return -EINVAL;
2138         }
2139
2140         /* If the OTP has no valid Bluetooth device address, then there will
2141          * also be no valid address for the operational firmware.
2142          */
2143         if (!bacmp(&params->otp_bdaddr, BDADDR_ANY)) {
2144                 bt_dev_info(hdev, "No device address configured");
2145                 set_bit(HCI_QUIRK_INVALID_BDADDR, &hdev->quirks);
2146         }
2147
2148         /* With this Intel bootloader only the hardware variant and device
2149          * revision information are used to select the right firmware for SfP
2150          * and WsP.
2151          *
2152          * The firmware filename is ibt-<hw_variant>-<dev_revid>.sfi.
2153          *
2154          * Currently the supported hardware variants are:
2155          *   11 (0x0b) for iBT3.0 (LnP/SfP)
2156          *   12 (0x0c) for iBT3.5 (WsP)
2157          *
2158          * For ThP/JfP and for future SKU's, the FW name varies based on HW
2159          * variant, HW revision and FW revision, as these are dependent on CNVi
2160          * and RF Combination.
2161          *
2162          *   17 (0x11) for iBT3.5 (JfP)
2163          *   18 (0x12) for iBT3.5 (ThP)
2164          *
2165          * The firmware file name for these will be
2166          * ibt-<hw_variant>-<hw_revision>-<fw_revision>.sfi.
2167          *
2168          */
2169         switch (ver.hw_variant) {
2170         case 0x0b:      /* SfP */
2171         case 0x0c:      /* WsP */
2172                 snprintf(fwname, sizeof(fwname), "intel/ibt-%u-%u.sfi",
2173                          le16_to_cpu(ver.hw_variant),
2174                          le16_to_cpu(params->dev_revid));
2175                 break;
2176         case 0x11:      /* JfP */
2177         case 0x12:      /* ThP */
2178                 snprintf(fwname, sizeof(fwname), "intel/ibt-%u-%u-%u.sfi",
2179                          le16_to_cpu(ver.hw_variant),
2180                          le16_to_cpu(ver.hw_revision),
2181                          le16_to_cpu(ver.fw_revision));
2182                 break;
2183         default:
2184                 BT_ERR("%s: Unsupported Intel firmware naming", hdev->name);
2185                 return -EINVAL;
2186         }
2187
2188         err = request_firmware(&fw, fwname, &hdev->dev);
2189         if (err < 0) {
2190                 BT_ERR("%s: Failed to load Intel firmware file (%d)",
2191                        hdev->name, err);
2192                 kfree_skb(skb);
2193                 return err;
2194         }
2195
2196         bt_dev_info(hdev, "Found device firmware: %s", fwname);
2197
2198         /* Save the DDC file name for later use to apply once the firmware
2199          * downloading is done.
2200          */
2201         switch (ver.hw_variant) {
2202         case 0x0b:      /* SfP */
2203         case 0x0c:      /* WsP */
2204                 snprintf(fwname, sizeof(fwname), "intel/ibt-%u-%u.ddc",
2205                          le16_to_cpu(ver.hw_variant),
2206                          le16_to_cpu(params->dev_revid));
2207                 break;
2208         case 0x11:      /* JfP */
2209         case 0x12:      /* ThP */
2210                 snprintf(fwname, sizeof(fwname), "intel/ibt-%u-%u-%u.ddc",
2211                          le16_to_cpu(ver.hw_variant),
2212                          le16_to_cpu(ver.hw_revision),
2213                          le16_to_cpu(ver.fw_revision));
2214                 break;
2215         default:
2216                 BT_ERR("%s: Unsupported Intel firmware naming", hdev->name);
2217                 return -EINVAL;
2218         }
2219
2220         kfree_skb(skb);
2221
2222         if (fw->size < 644) {
2223                 BT_ERR("%s: Invalid size of firmware file (%zu)",
2224                        hdev->name, fw->size);
2225                 err = -EBADF;
2226                 goto done;
2227         }
2228
2229         set_bit(BTUSB_DOWNLOADING, &data->flags);
2230
2231         /* Start the firmware download transaction with the Init fragment
2232          * represented by the 128 bytes of CSS header.
2233          */
2234         err = btintel_secure_send(hdev, 0x00, 128, fw->data);
2235         if (err < 0) {
2236                 BT_ERR("%s: Failed to send firmware header (%d)",
2237                        hdev->name, err);
2238                 goto done;
2239         }
2240
2241         /* Send the 256 bytes of public key information from the firmware
2242          * as the PKey fragment.
2243          */
2244         err = btintel_secure_send(hdev, 0x03, 256, fw->data + 128);
2245         if (err < 0) {
2246                 BT_ERR("%s: Failed to send firmware public key (%d)",
2247                        hdev->name, err);
2248                 goto done;
2249         }
2250
2251         /* Send the 256 bytes of signature information from the firmware
2252          * as the Sign fragment.
2253          */
2254         err = btintel_secure_send(hdev, 0x02, 256, fw->data + 388);
2255         if (err < 0) {
2256                 BT_ERR("%s: Failed to send firmware signature (%d)",
2257                        hdev->name, err);
2258                 goto done;
2259         }
2260
2261         fw_ptr = fw->data + 644;
2262         frag_len = 0;
2263
2264         while (fw_ptr - fw->data < fw->size) {
2265                 struct hci_command_hdr *cmd = (void *)(fw_ptr + frag_len);
2266
2267                 frag_len += sizeof(*cmd) + cmd->plen;
2268
2269                 /* The parameter length of the secure send command requires
2270                  * a 4 byte alignment. It happens so that the firmware file
2271                  * contains proper Intel_NOP commands to align the fragments
2272                  * as needed.
2273                  *
2274                  * Send set of commands with 4 byte alignment from the
2275                  * firmware data buffer as a single Data fragement.
2276                  */
2277                 if (!(frag_len % 4)) {
2278                         err = btintel_secure_send(hdev, 0x01, frag_len, fw_ptr);
2279                         if (err < 0) {
2280                                 BT_ERR("%s: Failed to send firmware data (%d)",
2281                                        hdev->name, err);
2282                                 goto done;
2283                         }
2284
2285                         fw_ptr += frag_len;
2286                         frag_len = 0;
2287                 }
2288         }
2289
2290         set_bit(BTUSB_FIRMWARE_LOADED, &data->flags);
2291
2292         bt_dev_info(hdev, "Waiting for firmware download to complete");
2293
2294         /* Before switching the device into operational mode and with that
2295          * booting the loaded firmware, wait for the bootloader notification
2296          * that all fragments have been successfully received.
2297          *
2298          * When the event processing receives the notification, then the
2299          * BTUSB_DOWNLOADING flag will be cleared.
2300          *
2301          * The firmware loading should not take longer than 5 seconds
2302          * and thus just timeout if that happens and fail the setup
2303          * of this device.
2304          */
2305         err = wait_on_bit_timeout(&data->flags, BTUSB_DOWNLOADING,
2306                                   TASK_INTERRUPTIBLE,
2307                                   msecs_to_jiffies(5000));
2308         if (err == -EINTR) {
2309                 BT_ERR("%s: Firmware loading interrupted", hdev->name);
2310                 goto done;
2311         }
2312
2313         if (err) {
2314                 BT_ERR("%s: Firmware loading timeout", hdev->name);
2315                 err = -ETIMEDOUT;
2316                 goto done;
2317         }
2318
2319         if (test_bit(BTUSB_FIRMWARE_FAILED, &data->flags)) {
2320                 BT_ERR("%s: Firmware loading failed", hdev->name);
2321                 err = -ENOEXEC;
2322                 goto done;
2323         }
2324
2325         rettime = ktime_get();
2326         delta = ktime_sub(rettime, calltime);
2327         duration = (unsigned long long) ktime_to_ns(delta) >> 10;
2328
2329         bt_dev_info(hdev, "Firmware loaded in %llu usecs", duration);
2330
2331 done:
2332         release_firmware(fw);
2333
2334         if (err < 0)
2335                 return err;
2336
2337         calltime = ktime_get();
2338
2339         set_bit(BTUSB_BOOTING, &data->flags);
2340
2341         skb = __hci_cmd_sync(hdev, 0xfc01, sizeof(reset_param), reset_param,
2342                              HCI_INIT_TIMEOUT);
2343         if (IS_ERR(skb))
2344                 return PTR_ERR(skb);
2345
2346         kfree_skb(skb);
2347
2348         /* The bootloader will not indicate when the device is ready. This
2349          * is done by the operational firmware sending bootup notification.
2350          *
2351          * Booting into operational firmware should not take longer than
2352          * 1 second. However if that happens, then just fail the setup
2353          * since something went wrong.
2354          */
2355         bt_dev_info(hdev, "Waiting for device to boot");
2356
2357         err = wait_on_bit_timeout(&data->flags, BTUSB_BOOTING,
2358                                   TASK_INTERRUPTIBLE,
2359                                   msecs_to_jiffies(1000));
2360
2361         if (err == -EINTR) {
2362                 BT_ERR("%s: Device boot interrupted", hdev->name);
2363                 return -EINTR;
2364         }
2365
2366         if (err) {
2367                 BT_ERR("%s: Device boot timeout", hdev->name);
2368                 return -ETIMEDOUT;
2369         }
2370
2371         rettime = ktime_get();
2372         delta = ktime_sub(rettime, calltime);
2373         duration = (unsigned long long) ktime_to_ns(delta) >> 10;
2374
2375         bt_dev_info(hdev, "Device booted in %llu usecs", duration);
2376
2377         clear_bit(BTUSB_BOOTLOADER, &data->flags);
2378
2379         /* Once the device is running in operational mode, it needs to apply
2380          * the device configuration (DDC) parameters.
2381          *
2382          * The device can work without DDC parameters, so even if it fails
2383          * to load the file, no need to fail the setup.
2384          */
2385         btintel_load_ddc_config(hdev, fwname);
2386
2387         /* Set the event mask for Intel specific vendor events. This enables
2388          * a few extra events that are useful during general operation. It
2389          * does not enable any debugging related events.
2390          *
2391          * The device will function correctly without these events enabled
2392          * and thus no need to fail the setup.
2393          */
2394         btintel_set_event_mask(hdev, false);
2395
2396         return 0;
2397 }
2398
2399 static int btusb_shutdown_intel(struct hci_dev *hdev)
2400 {
2401         struct sk_buff *skb;
2402         long ret;
2403
2404         /* Some platforms have an issue with BT LED when the interface is
2405          * down or BT radio is turned off, which takes 5 seconds to BT LED
2406          * goes off. This command turns off the BT LED immediately.
2407          */
2408         skb = __hci_cmd_sync(hdev, 0xfc3f, 0, NULL, HCI_INIT_TIMEOUT);
2409         if (IS_ERR(skb)) {
2410                 ret = PTR_ERR(skb);
2411                 BT_ERR("%s: turning off Intel device LED failed (%ld)",
2412                        hdev->name, ret);
2413                 return ret;
2414         }
2415         kfree_skb(skb);
2416
2417         return 0;
2418 }
2419
2420 #ifdef CONFIG_PM
2421 /* Configure an out-of-band gpio as wake-up pin, if specified in device tree */
2422 static int marvell_config_oob_wake(struct hci_dev *hdev)
2423 {
2424         struct sk_buff *skb;
2425         struct btusb_data *data = hci_get_drvdata(hdev);
2426         struct device *dev = &data->udev->dev;
2427         u16 pin, gap, opcode;
2428         int ret;
2429         u8 cmd[5];
2430
2431         /* Move on if no wakeup pin specified */
2432         if (of_property_read_u16(dev->of_node, "marvell,wakeup-pin", &pin) ||
2433             of_property_read_u16(dev->of_node, "marvell,wakeup-gap-ms", &gap))
2434                 return 0;
2435
2436         /* Vendor specific command to configure a GPIO as wake-up pin */
2437         opcode = hci_opcode_pack(0x3F, 0x59);
2438         cmd[0] = opcode & 0xFF;
2439         cmd[1] = opcode >> 8;
2440         cmd[2] = 2; /* length of parameters that follow */
2441         cmd[3] = pin;
2442         cmd[4] = gap; /* time in ms, for which wakeup pin should be asserted */
2443
2444         skb = bt_skb_alloc(sizeof(cmd), GFP_KERNEL);
2445         if (!skb) {
2446                 bt_dev_err(hdev, "%s: No memory\n", __func__);
2447                 return -ENOMEM;
2448         }
2449
2450         skb_put_data(skb, cmd, sizeof(cmd));
2451         hci_skb_pkt_type(skb) = HCI_COMMAND_PKT;
2452
2453         ret = btusb_send_frame(hdev, skb);
2454         if (ret) {
2455                 bt_dev_err(hdev, "%s: configuration failed\n", __func__);
2456                 kfree_skb(skb);
2457                 return ret;
2458         }
2459
2460         return 0;
2461 }
2462 #endif
2463
2464 static int btusb_set_bdaddr_marvell(struct hci_dev *hdev,
2465                                     const bdaddr_t *bdaddr)
2466 {
2467         struct sk_buff *skb;
2468         u8 buf[8];
2469         long ret;
2470
2471         buf[0] = 0xfe;
2472         buf[1] = sizeof(bdaddr_t);
2473         memcpy(buf + 2, bdaddr, sizeof(bdaddr_t));
2474
2475         skb = __hci_cmd_sync(hdev, 0xfc22, sizeof(buf), buf, HCI_INIT_TIMEOUT);
2476         if (IS_ERR(skb)) {
2477                 ret = PTR_ERR(skb);
2478                 bt_dev_err(hdev, "changing Marvell device address failed (%ld)",
2479                            ret);
2480                 return ret;
2481         }
2482         kfree_skb(skb);
2483
2484         return 0;
2485 }
2486
2487 static int btusb_set_bdaddr_ath3012(struct hci_dev *hdev,
2488                                     const bdaddr_t *bdaddr)
2489 {
2490         struct sk_buff *skb;
2491         u8 buf[10];
2492         long ret;
2493
2494         buf[0] = 0x01;
2495         buf[1] = 0x01;
2496         buf[2] = 0x00;
2497         buf[3] = sizeof(bdaddr_t);
2498         memcpy(buf + 4, bdaddr, sizeof(bdaddr_t));
2499
2500         skb = __hci_cmd_sync(hdev, 0xfc0b, sizeof(buf), buf, HCI_INIT_TIMEOUT);
2501         if (IS_ERR(skb)) {
2502                 ret = PTR_ERR(skb);
2503                 bt_dev_err(hdev, "Change address command failed (%ld)", ret);
2504                 return ret;
2505         }
2506         kfree_skb(skb);
2507
2508         return 0;
2509 }
2510
2511 #define QCA_DFU_PACKET_LEN      4096
2512
2513 #define QCA_GET_TARGET_VERSION  0x09
2514 #define QCA_CHECK_STATUS        0x05
2515 #define QCA_DFU_DOWNLOAD        0x01
2516
2517 #define QCA_SYSCFG_UPDATED      0x40
2518 #define QCA_PATCH_UPDATED       0x80
2519 #define QCA_DFU_TIMEOUT         3000
2520
2521 struct qca_version {
2522         __le32  rom_version;
2523         __le32  patch_version;
2524         __le32  ram_version;
2525         __le32  ref_clock;
2526         __u8    reserved[4];
2527 } __packed;
2528
2529 struct qca_rampatch_version {
2530         __le16  rom_version;
2531         __le16  patch_version;
2532 } __packed;
2533
2534 struct qca_device_info {
2535         u32     rom_version;
2536         u8      rampatch_hdr;   /* length of header in rampatch */
2537         u8      nvm_hdr;        /* length of header in NVM */
2538         u8      ver_offset;     /* offset of version structure in rampatch */
2539 };
2540
2541 static const struct qca_device_info qca_devices_table[] = {
2542         { 0x00000100, 20, 4, 10 }, /* Rome 1.0 */
2543         { 0x00000101, 20, 4, 10 }, /* Rome 1.1 */
2544         { 0x00000200, 28, 4, 18 }, /* Rome 2.0 */
2545         { 0x00000201, 28, 4, 18 }, /* Rome 2.1 */
2546         { 0x00000300, 28, 4, 18 }, /* Rome 3.0 */
2547         { 0x00000302, 28, 4, 18 }, /* Rome 3.2 */
2548 };
2549
2550 static int btusb_qca_send_vendor_req(struct hci_dev *hdev, u8 request,
2551                                      void *data, u16 size)
2552 {
2553         struct btusb_data *btdata = hci_get_drvdata(hdev);
2554         struct usb_device *udev = btdata->udev;
2555         int pipe, err;
2556         u8 *buf;
2557
2558         buf = kmalloc(size, GFP_KERNEL);
2559         if (!buf)
2560                 return -ENOMEM;
2561
2562         /* Found some of USB hosts have IOT issues with ours so that we should
2563          * not wait until HCI layer is ready.
2564          */
2565         pipe = usb_rcvctrlpipe(udev, 0);
2566         err = usb_control_msg(udev, pipe, request, USB_TYPE_VENDOR | USB_DIR_IN,
2567                               0, 0, buf, size, USB_CTRL_SET_TIMEOUT);
2568         if (err < 0) {
2569                 bt_dev_err(hdev, "Failed to access otp area (%d)", err);
2570                 goto done;
2571         }
2572
2573         memcpy(data, buf, size);
2574
2575 done:
2576         kfree(buf);
2577
2578         return err;
2579 }
2580
2581 static int btusb_setup_qca_download_fw(struct hci_dev *hdev,
2582                                        const struct firmware *firmware,
2583                                        size_t hdr_size)
2584 {
2585         struct btusb_data *btdata = hci_get_drvdata(hdev);
2586         struct usb_device *udev = btdata->udev;
2587         size_t count, size, sent = 0;
2588         int pipe, len, err;
2589         u8 *buf;
2590
2591         buf = kmalloc(QCA_DFU_PACKET_LEN, GFP_KERNEL);
2592         if (!buf)
2593                 return -ENOMEM;
2594
2595         count = firmware->size;
2596
2597         size = min_t(size_t, count, hdr_size);
2598         memcpy(buf, firmware->data, size);
2599
2600         /* USB patches should go down to controller through USB path
2601          * because binary format fits to go down through USB channel.
2602          * USB control path is for patching headers and USB bulk is for
2603          * patch body.
2604          */
2605         pipe = usb_sndctrlpipe(udev, 0);
2606         err = usb_control_msg(udev, pipe, QCA_DFU_DOWNLOAD, USB_TYPE_VENDOR,
2607                               0, 0, buf, size, USB_CTRL_SET_TIMEOUT);
2608         if (err < 0) {
2609                 bt_dev_err(hdev, "Failed to send headers (%d)", err);
2610                 goto done;
2611         }
2612
2613         sent += size;
2614         count -= size;
2615
2616         while (count) {
2617                 size = min_t(size_t, count, QCA_DFU_PACKET_LEN);
2618
2619                 memcpy(buf, firmware->data + sent, size);
2620
2621                 pipe = usb_sndbulkpipe(udev, 0x02);
2622                 err = usb_bulk_msg(udev, pipe, buf, size, &len,
2623                                    QCA_DFU_TIMEOUT);
2624                 if (err < 0) {
2625                         bt_dev_err(hdev, "Failed to send body at %zd of %zd (%d)",
2626                                    sent, firmware->size, err);
2627                         break;
2628                 }
2629
2630                 if (size != len) {
2631                         bt_dev_err(hdev, "Failed to get bulk buffer");
2632                         err = -EILSEQ;
2633                         break;
2634                 }
2635
2636                 sent  += size;
2637                 count -= size;
2638         }
2639
2640 done:
2641         kfree(buf);
2642         return err;
2643 }
2644
2645 static int btusb_setup_qca_load_rampatch(struct hci_dev *hdev,
2646                                          struct qca_version *ver,
2647                                          const struct qca_device_info *info)
2648 {
2649         struct qca_rampatch_version *rver;
2650         const struct firmware *fw;
2651         u32 ver_rom, ver_patch;
2652         u16 rver_rom, rver_patch;
2653         char fwname[64];
2654         int err;
2655
2656         ver_rom = le32_to_cpu(ver->rom_version);
2657         ver_patch = le32_to_cpu(ver->patch_version);
2658
2659         snprintf(fwname, sizeof(fwname), "qca/rampatch_usb_%08x.bin", ver_rom);
2660
2661         err = request_firmware(&fw, fwname, &hdev->dev);
2662         if (err) {
2663                 bt_dev_err(hdev, "failed to request rampatch file: %s (%d)",
2664                            fwname, err);
2665                 return err;
2666         }
2667
2668         bt_dev_info(hdev, "using rampatch file: %s", fwname);
2669
2670         rver = (struct qca_rampatch_version *)(fw->data + info->ver_offset);
2671         rver_rom = le16_to_cpu(rver->rom_version);
2672         rver_patch = le16_to_cpu(rver->patch_version);
2673
2674         bt_dev_info(hdev, "QCA: patch rome 0x%x build 0x%x, "
2675                     "firmware rome 0x%x build 0x%x",
2676                     rver_rom, rver_patch, ver_rom, ver_patch);
2677
2678         if (rver_rom != ver_rom || rver_patch <= ver_patch) {
2679                 bt_dev_err(hdev, "rampatch file version did not match with firmware");
2680                 err = -EINVAL;
2681                 goto done;
2682         }
2683
2684         err = btusb_setup_qca_download_fw(hdev, fw, info->rampatch_hdr);
2685
2686 done:
2687         release_firmware(fw);
2688
2689         return err;
2690 }
2691
2692 static int btusb_setup_qca_load_nvm(struct hci_dev *hdev,
2693                                     struct qca_version *ver,
2694                                     const struct qca_device_info *info)
2695 {
2696         const struct firmware *fw;
2697         char fwname[64];
2698         int err;
2699
2700         snprintf(fwname, sizeof(fwname), "qca/nvm_usb_%08x.bin",
2701                  le32_to_cpu(ver->rom_version));
2702
2703         err = request_firmware(&fw, fwname, &hdev->dev);
2704         if (err) {
2705                 bt_dev_err(hdev, "failed to request NVM file: %s (%d)",
2706                            fwname, err);
2707                 return err;
2708         }
2709
2710         bt_dev_info(hdev, "using NVM file: %s", fwname);
2711
2712         err = btusb_setup_qca_download_fw(hdev, fw, info->nvm_hdr);
2713
2714         release_firmware(fw);
2715
2716         return err;
2717 }
2718
2719 static int btusb_setup_qca(struct hci_dev *hdev)
2720 {
2721         const struct qca_device_info *info = NULL;
2722         struct qca_version ver;
2723         u32 ver_rom;
2724         u8 status;
2725         int i, err;
2726
2727         err = btusb_qca_send_vendor_req(hdev, QCA_GET_TARGET_VERSION, &ver,
2728                                         sizeof(ver));
2729         if (err < 0)
2730                 return err;
2731
2732         ver_rom = le32_to_cpu(ver.rom_version);
2733         for (i = 0; i < ARRAY_SIZE(qca_devices_table); i++) {
2734                 if (ver_rom == qca_devices_table[i].rom_version)
2735                         info = &qca_devices_table[i];
2736         }
2737         if (!info) {
2738                 bt_dev_err(hdev, "don't support firmware rome 0x%x", ver_rom);
2739                 return -ENODEV;
2740         }
2741
2742         err = btusb_qca_send_vendor_req(hdev, QCA_CHECK_STATUS, &status,
2743                                         sizeof(status));
2744         if (err < 0)
2745                 return err;
2746
2747         if (!(status & QCA_PATCH_UPDATED)) {
2748                 err = btusb_setup_qca_load_rampatch(hdev, &ver, info);
2749                 if (err < 0)
2750                         return err;
2751         }
2752
2753         if (!(status & QCA_SYSCFG_UPDATED)) {
2754                 err = btusb_setup_qca_load_nvm(hdev, &ver, info);
2755                 if (err < 0)
2756                         return err;
2757         }
2758
2759         return 0;
2760 }
2761
2762 #ifdef CONFIG_BT_HCIBTUSB_BCM
2763 static inline int __set_diag_interface(struct hci_dev *hdev)
2764 {
2765         struct btusb_data *data = hci_get_drvdata(hdev);
2766         struct usb_interface *intf = data->diag;
2767         int i;
2768
2769         if (!data->diag)
2770                 return -ENODEV;
2771
2772         data->diag_tx_ep = NULL;
2773         data->diag_rx_ep = NULL;
2774
2775         for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
2776                 struct usb_endpoint_descriptor *ep_desc;
2777
2778                 ep_desc = &intf->cur_altsetting->endpoint[i].desc;
2779
2780                 if (!data->diag_tx_ep && usb_endpoint_is_bulk_out(ep_desc)) {
2781                         data->diag_tx_ep = ep_desc;
2782                         continue;
2783                 }
2784
2785                 if (!data->diag_rx_ep && usb_endpoint_is_bulk_in(ep_desc)) {
2786                         data->diag_rx_ep = ep_desc;
2787                         continue;
2788                 }
2789         }
2790
2791         if (!data->diag_tx_ep || !data->diag_rx_ep) {
2792                 bt_dev_err(hdev, "invalid diagnostic descriptors");
2793                 return -ENODEV;
2794         }
2795
2796         return 0;
2797 }
2798
2799 static struct urb *alloc_diag_urb(struct hci_dev *hdev, bool enable)
2800 {
2801         struct btusb_data *data = hci_get_drvdata(hdev);
2802         struct sk_buff *skb;
2803         struct urb *urb;
2804         unsigned int pipe;
2805
2806         if (!data->diag_tx_ep)
2807                 return ERR_PTR(-ENODEV);
2808
2809         urb = usb_alloc_urb(0, GFP_KERNEL);
2810         if (!urb)
2811                 return ERR_PTR(-ENOMEM);
2812
2813         skb = bt_skb_alloc(2, GFP_KERNEL);
2814         if (!skb) {
2815                 usb_free_urb(urb);
2816                 return ERR_PTR(-ENOMEM);
2817         }
2818
2819         skb_put_u8(skb, 0xf0);
2820         skb_put_u8(skb, enable);
2821
2822         pipe = usb_sndbulkpipe(data->udev, data->diag_tx_ep->bEndpointAddress);
2823
2824         usb_fill_bulk_urb(urb, data->udev, pipe,
2825                           skb->data, skb->len, btusb_tx_complete, skb);
2826
2827         skb->dev = (void *)hdev;
2828
2829         return urb;
2830 }
2831
2832 static int btusb_bcm_set_diag(struct hci_dev *hdev, bool enable)
2833 {
2834         struct btusb_data *data = hci_get_drvdata(hdev);
2835         struct urb *urb;
2836
2837         if (!data->diag)
2838                 return -ENODEV;
2839
2840         if (!test_bit(HCI_RUNNING, &hdev->flags))
2841                 return -ENETDOWN;
2842
2843         urb = alloc_diag_urb(hdev, enable);
2844         if (IS_ERR(urb))
2845                 return PTR_ERR(urb);
2846
2847         return submit_or_queue_tx_urb(hdev, urb);
2848 }
2849 #endif
2850
2851 #ifdef CONFIG_PM
2852 static irqreturn_t btusb_oob_wake_handler(int irq, void *priv)
2853 {
2854         struct btusb_data *data = priv;
2855
2856         pm_wakeup_event(&data->udev->dev, 0);
2857         pm_system_wakeup();
2858
2859         /* Disable only if not already disabled (keep it balanced) */
2860         if (test_and_clear_bit(BTUSB_OOB_WAKE_ENABLED, &data->flags)) {
2861                 disable_irq_nosync(irq);
2862                 disable_irq_wake(irq);
2863         }
2864         return IRQ_HANDLED;
2865 }
2866
2867 static const struct of_device_id btusb_match_table[] = {
2868         { .compatible = "usb1286,204e" },
2869         { }
2870 };
2871 MODULE_DEVICE_TABLE(of, btusb_match_table);
2872
2873 /* Use an oob wakeup pin? */
2874 static int btusb_config_oob_wake(struct hci_dev *hdev)
2875 {
2876         struct btusb_data *data = hci_get_drvdata(hdev);
2877         struct device *dev = &data->udev->dev;
2878         int irq, ret;
2879
2880         clear_bit(BTUSB_OOB_WAKE_ENABLED, &data->flags);
2881
2882         if (!of_match_device(btusb_match_table, dev))
2883                 return 0;
2884
2885         /* Move on if no IRQ specified */
2886         irq = of_irq_get_byname(dev->of_node, "wakeup");
2887         if (irq <= 0) {
2888                 bt_dev_dbg(hdev, "%s: no OOB Wakeup IRQ in DT", __func__);
2889                 return 0;
2890         }
2891
2892         ret = devm_request_irq(&hdev->dev, irq, btusb_oob_wake_handler,
2893                                0, "OOB Wake-on-BT", data);
2894         if (ret) {
2895                 bt_dev_err(hdev, "%s: IRQ request failed", __func__);
2896                 return ret;
2897         }
2898
2899         ret = device_init_wakeup(dev, true);
2900         if (ret) {
2901                 bt_dev_err(hdev, "%s: failed to init_wakeup", __func__);
2902                 return ret;
2903         }
2904
2905         data->oob_wake_irq = irq;
2906         disable_irq(irq);
2907         bt_dev_info(hdev, "OOB Wake-on-BT configured at IRQ %u", irq);
2908         return 0;
2909 }
2910 #endif
2911
2912 static int btusb_probe(struct usb_interface *intf,
2913                        const struct usb_device_id *id)
2914 {
2915         struct usb_endpoint_descriptor *ep_desc;
2916         struct btusb_data *data;
2917         struct hci_dev *hdev;
2918         unsigned ifnum_base;
2919         int i, err;
2920
2921         BT_DBG("intf %p id %p", intf, id);
2922
2923         /* interface numbers are hardcoded in the spec */
2924         if (intf->cur_altsetting->desc.bInterfaceNumber != 0) {
2925                 if (!(id->driver_info & BTUSB_IFNUM_2))
2926                         return -ENODEV;
2927                 if (intf->cur_altsetting->desc.bInterfaceNumber != 2)
2928                         return -ENODEV;
2929         }
2930
2931         ifnum_base = intf->cur_altsetting->desc.bInterfaceNumber;
2932
2933         if (!id->driver_info) {
2934                 const struct usb_device_id *match;
2935
2936                 match = usb_match_id(intf, blacklist_table);
2937                 if (match)
2938                         id = match;
2939         }
2940
2941         if (id->driver_info == BTUSB_IGNORE)
2942                 return -ENODEV;
2943
2944         if (id->driver_info & BTUSB_ATH3012) {
2945                 struct usb_device *udev = interface_to_usbdev(intf);
2946
2947                 /* Old firmware would otherwise let ath3k driver load
2948                  * patch and sysconfig files
2949                  */
2950                 if (le16_to_cpu(udev->descriptor.bcdDevice) <= 0x0001)
2951                         return -ENODEV;
2952         }
2953
2954         data = devm_kzalloc(&intf->dev, sizeof(*data), GFP_KERNEL);
2955         if (!data)
2956                 return -ENOMEM;
2957
2958         for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
2959                 ep_desc = &intf->cur_altsetting->endpoint[i].desc;
2960
2961                 if (!data->intr_ep && usb_endpoint_is_int_in(ep_desc)) {
2962                         data->intr_ep = ep_desc;
2963                         continue;
2964                 }
2965
2966                 if (!data->bulk_tx_ep && usb_endpoint_is_bulk_out(ep_desc)) {
2967                         data->bulk_tx_ep = ep_desc;
2968                         continue;
2969                 }
2970
2971                 if (!data->bulk_rx_ep && usb_endpoint_is_bulk_in(ep_desc)) {
2972                         data->bulk_rx_ep = ep_desc;
2973                         continue;
2974                 }
2975         }
2976
2977         if (!data->intr_ep || !data->bulk_tx_ep || !data->bulk_rx_ep)
2978                 return -ENODEV;
2979
2980         if (id->driver_info & BTUSB_AMP) {
2981                 data->cmdreq_type = USB_TYPE_CLASS | 0x01;
2982                 data->cmdreq = 0x2b;
2983         } else {
2984                 data->cmdreq_type = USB_TYPE_CLASS;
2985                 data->cmdreq = 0x00;
2986         }
2987
2988         data->udev = interface_to_usbdev(intf);
2989         data->intf = intf;
2990
2991         INIT_WORK(&data->work, btusb_work);
2992         INIT_WORK(&data->waker, btusb_waker);
2993         init_usb_anchor(&data->deferred);
2994         init_usb_anchor(&data->tx_anchor);
2995         spin_lock_init(&data->txlock);
2996
2997         init_usb_anchor(&data->intr_anchor);
2998         init_usb_anchor(&data->bulk_anchor);
2999         init_usb_anchor(&data->isoc_anchor);
3000         init_usb_anchor(&data->diag_anchor);
3001         spin_lock_init(&data->rxlock);
3002
3003         if (id->driver_info & BTUSB_INTEL_NEW) {
3004                 data->recv_event = btusb_recv_event_intel;
3005                 data->recv_bulk = btusb_recv_bulk_intel;
3006                 set_bit(BTUSB_BOOTLOADER, &data->flags);
3007         } else {
3008                 data->recv_event = hci_recv_frame;
3009                 data->recv_bulk = btusb_recv_bulk;
3010         }
3011
3012         hdev = hci_alloc_dev();
3013         if (!hdev)
3014                 return -ENOMEM;
3015
3016         hdev->bus = HCI_USB;
3017         hci_set_drvdata(hdev, data);
3018
3019         if (id->driver_info & BTUSB_AMP)
3020                 hdev->dev_type = HCI_AMP;
3021         else
3022                 hdev->dev_type = HCI_PRIMARY;
3023
3024         data->hdev = hdev;
3025
3026         SET_HCIDEV_DEV(hdev, &intf->dev);
3027
3028         hdev->open   = btusb_open;
3029         hdev->close  = btusb_close;
3030         hdev->flush  = btusb_flush;
3031         hdev->send   = btusb_send_frame;
3032         hdev->notify = btusb_notify;
3033
3034 #ifdef CONFIG_PM
3035         err = btusb_config_oob_wake(hdev);
3036         if (err)
3037                 goto out_free_dev;
3038
3039         /* Marvell devices may need a specific chip configuration */
3040         if (id->driver_info & BTUSB_MARVELL && data->oob_wake_irq) {
3041                 err = marvell_config_oob_wake(hdev);
3042                 if (err)
3043                         goto out_free_dev;
3044         }
3045 #endif
3046         if (id->driver_info & BTUSB_CW6622)
3047                 set_bit(HCI_QUIRK_BROKEN_STORED_LINK_KEY, &hdev->quirks);
3048
3049         if (id->driver_info & BTUSB_BCM2045)
3050                 set_bit(HCI_QUIRK_BROKEN_STORED_LINK_KEY, &hdev->quirks);
3051
3052         if (id->driver_info & BTUSB_BCM92035)
3053                 hdev->setup = btusb_setup_bcm92035;
3054
3055 #ifdef CONFIG_BT_HCIBTUSB_BCM
3056         if (id->driver_info & BTUSB_BCM_PATCHRAM) {
3057                 hdev->manufacturer = 15;
3058                 hdev->setup = btbcm_setup_patchram;
3059                 hdev->set_diag = btusb_bcm_set_diag;
3060                 hdev->set_bdaddr = btbcm_set_bdaddr;
3061
3062                 /* Broadcom LM_DIAG Interface numbers are hardcoded */
3063                 data->diag = usb_ifnum_to_if(data->udev, ifnum_base + 2);
3064         }
3065
3066         if (id->driver_info & BTUSB_BCM_APPLE) {
3067                 hdev->manufacturer = 15;
3068                 hdev->setup = btbcm_setup_apple;
3069                 hdev->set_diag = btusb_bcm_set_diag;
3070
3071                 /* Broadcom LM_DIAG Interface numbers are hardcoded */
3072                 data->diag = usb_ifnum_to_if(data->udev, ifnum_base + 2);
3073         }
3074 #endif
3075
3076         if (id->driver_info & BTUSB_INTEL) {
3077                 hdev->manufacturer = 2;
3078                 hdev->setup = btusb_setup_intel;
3079                 hdev->shutdown = btusb_shutdown_intel;
3080                 hdev->set_diag = btintel_set_diag_mfg;
3081                 hdev->set_bdaddr = btintel_set_bdaddr;
3082                 set_bit(HCI_QUIRK_STRICT_DUPLICATE_FILTER, &hdev->quirks);
3083                 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks);
3084                 set_bit(HCI_QUIRK_NON_PERSISTENT_DIAG, &hdev->quirks);
3085         }
3086
3087         if (id->driver_info & BTUSB_INTEL_NEW) {
3088                 hdev->manufacturer = 2;
3089                 hdev->send = btusb_send_frame_intel;
3090                 hdev->setup = btusb_setup_intel_new;
3091                 hdev->hw_error = btintel_hw_error;
3092                 hdev->set_diag = btintel_set_diag;
3093                 hdev->set_bdaddr = btintel_set_bdaddr;
3094                 set_bit(HCI_QUIRK_STRICT_DUPLICATE_FILTER, &hdev->quirks);
3095                 set_bit(HCI_QUIRK_NON_PERSISTENT_DIAG, &hdev->quirks);
3096         }
3097
3098         if (id->driver_info & BTUSB_MARVELL)
3099                 hdev->set_bdaddr = btusb_set_bdaddr_marvell;
3100
3101         if (id->driver_info & BTUSB_SWAVE) {
3102                 set_bit(HCI_QUIRK_FIXUP_INQUIRY_MODE, &hdev->quirks);
3103                 set_bit(HCI_QUIRK_BROKEN_LOCAL_COMMANDS, &hdev->quirks);
3104         }
3105
3106         if (id->driver_info & BTUSB_INTEL_BOOT) {
3107                 hdev->manufacturer = 2;
3108                 set_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks);
3109         }
3110
3111         if (id->driver_info & BTUSB_ATH3012) {
3112                 hdev->set_bdaddr = btusb_set_bdaddr_ath3012;
3113                 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks);
3114                 set_bit(HCI_QUIRK_STRICT_DUPLICATE_FILTER, &hdev->quirks);
3115         }
3116
3117         if (id->driver_info & BTUSB_QCA_ROME) {
3118                 data->setup_on_usb = btusb_setup_qca;
3119                 hdev->set_bdaddr = btusb_set_bdaddr_ath3012;
3120
3121                 /* QCA Rome devices lose their updated firmware over suspend,
3122                  * but the USB hub doesn't notice any status change.
3123                  * Explicitly request a device reset on resume.
3124                  */
3125                 set_bit(BTUSB_RESET_RESUME, &data->flags);
3126         }
3127
3128 #ifdef CONFIG_BT_HCIBTUSB_RTL
3129         if (id->driver_info & BTUSB_REALTEK) {
3130                 hdev->setup = btrtl_setup_realtek;
3131
3132                 /* Realtek devices lose their updated firmware over suspend,
3133                  * but the USB hub doesn't notice any status change.
3134                  * Explicitly request a device reset on resume.
3135                  */
3136                 set_bit(BTUSB_RESET_RESUME, &data->flags);
3137         }
3138 #endif
3139
3140         if (id->driver_info & BTUSB_AMP) {
3141                 /* AMP controllers do not support SCO packets */
3142                 data->isoc = NULL;
3143         } else {
3144                 /* Interface orders are hardcoded in the specification */
3145                 data->isoc = usb_ifnum_to_if(data->udev, ifnum_base + 1);
3146                 data->isoc_ifnum = ifnum_base + 1;
3147         }
3148
3149         if (!reset)
3150                 set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
3151
3152         if (force_scofix || id->driver_info & BTUSB_WRONG_SCO_MTU) {
3153                 if (!disable_scofix)
3154                         set_bit(HCI_QUIRK_FIXUP_BUFFER_SIZE, &hdev->quirks);
3155         }
3156
3157         if (id->driver_info & BTUSB_BROKEN_ISOC)
3158                 data->isoc = NULL;
3159
3160         if (id->driver_info & BTUSB_DIGIANSWER) {
3161                 data->cmdreq_type = USB_TYPE_VENDOR;
3162                 set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
3163         }
3164
3165         if (id->driver_info & BTUSB_CSR) {
3166                 struct usb_device *udev = data->udev;
3167                 u16 bcdDevice = le16_to_cpu(udev->descriptor.bcdDevice);
3168
3169                 /* Old firmware would otherwise execute USB reset */
3170                 if (bcdDevice < 0x117)
3171                         set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks);
3172
3173                 /* Fake CSR devices with broken commands */
3174                 if (bcdDevice <= 0x100 || bcdDevice == 0x134)
3175                         hdev->setup = btusb_setup_csr;
3176
3177                 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks);
3178         }
3179
3180         if (id->driver_info & BTUSB_SNIFFER) {
3181                 struct usb_device *udev = data->udev;
3182
3183                 /* New sniffer firmware has crippled HCI interface */
3184                 if (le16_to_cpu(udev->descriptor.bcdDevice) > 0x997)
3185                         set_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks);
3186         }
3187
3188         if (id->driver_info & BTUSB_INTEL_BOOT) {
3189                 /* A bug in the bootloader causes that interrupt interface is
3190                  * only enabled after receiving SetInterface(0, AltSetting=0).
3191                  */
3192                 err = usb_set_interface(data->udev, 0, 0);
3193                 if (err < 0) {
3194                         BT_ERR("failed to set interface 0, alt 0 %d", err);
3195                         goto out_free_dev;
3196                 }
3197         }
3198
3199         if (data->isoc) {
3200                 err = usb_driver_claim_interface(&btusb_driver,
3201                                                  data->isoc, data);
3202                 if (err < 0)
3203                         goto out_free_dev;
3204         }
3205
3206 #ifdef CONFIG_BT_HCIBTUSB_BCM
3207         if (data->diag) {
3208                 if (!usb_driver_claim_interface(&btusb_driver,
3209                                                 data->diag, data))
3210                         __set_diag_interface(hdev);
3211                 else
3212                         data->diag = NULL;
3213         }
3214 #endif
3215
3216         err = hci_register_dev(hdev);
3217         if (err < 0)
3218                 goto out_free_dev;
3219
3220         usb_set_intfdata(intf, data);
3221
3222         return 0;
3223
3224 out_free_dev:
3225         hci_free_dev(hdev);
3226         return err;
3227 }
3228
3229 static void btusb_disconnect(struct usb_interface *intf)
3230 {
3231         struct btusb_data *data = usb_get_intfdata(intf);
3232         struct hci_dev *hdev;
3233
3234         BT_DBG("intf %p", intf);
3235
3236         if (!data)
3237                 return;
3238
3239         hdev = data->hdev;
3240         usb_set_intfdata(data->intf, NULL);
3241
3242         if (data->isoc)
3243                 usb_set_intfdata(data->isoc, NULL);
3244
3245         if (data->diag)
3246                 usb_set_intfdata(data->diag, NULL);
3247
3248         hci_unregister_dev(hdev);
3249
3250         if (intf == data->intf) {
3251                 if (data->isoc)
3252                         usb_driver_release_interface(&btusb_driver, data->isoc);
3253                 if (data->diag)
3254                         usb_driver_release_interface(&btusb_driver, data->diag);
3255         } else if (intf == data->isoc) {
3256                 if (data->diag)
3257                         usb_driver_release_interface(&btusb_driver, data->diag);
3258                 usb_driver_release_interface(&btusb_driver, data->intf);
3259         } else if (intf == data->diag) {
3260                 usb_driver_release_interface(&btusb_driver, data->intf);
3261                 if (data->isoc)
3262                         usb_driver_release_interface(&btusb_driver, data->isoc);
3263         }
3264
3265         if (data->oob_wake_irq)
3266                 device_init_wakeup(&data->udev->dev, false);
3267
3268         hci_free_dev(hdev);
3269 }
3270
3271 #ifdef CONFIG_PM
3272 static int btusb_suspend(struct usb_interface *intf, pm_message_t message)
3273 {
3274         struct btusb_data *data = usb_get_intfdata(intf);
3275
3276         BT_DBG("intf %p", intf);
3277
3278         if (data->suspend_count++)
3279                 return 0;
3280
3281         spin_lock_irq(&data->txlock);
3282         if (!(PMSG_IS_AUTO(message) && data->tx_in_flight)) {
3283                 set_bit(BTUSB_SUSPENDING, &data->flags);
3284                 spin_unlock_irq(&data->txlock);
3285         } else {
3286                 spin_unlock_irq(&data->txlock);
3287                 data->suspend_count--;
3288                 return -EBUSY;
3289         }
3290
3291         cancel_work_sync(&data->work);
3292
3293         btusb_stop_traffic(data);
3294         usb_kill_anchored_urbs(&data->tx_anchor);
3295
3296         if (data->oob_wake_irq && device_may_wakeup(&data->udev->dev)) {
3297                 set_bit(BTUSB_OOB_WAKE_ENABLED, &data->flags);
3298                 enable_irq_wake(data->oob_wake_irq);
3299                 enable_irq(data->oob_wake_irq);
3300         }
3301
3302         /* Optionally request a device reset on resume, but only when
3303          * wakeups are disabled. If wakeups are enabled we assume the
3304          * device will stay powered up throughout suspend.
3305          */
3306         if (test_bit(BTUSB_RESET_RESUME, &data->flags) &&
3307             !device_may_wakeup(&data->udev->dev))
3308                 data->udev->reset_resume = 1;
3309
3310         return 0;
3311 }
3312
3313 static void play_deferred(struct btusb_data *data)
3314 {
3315         struct urb *urb;
3316         int err;
3317
3318         while ((urb = usb_get_from_anchor(&data->deferred))) {
3319                 usb_anchor_urb(urb, &data->tx_anchor);
3320
3321                 err = usb_submit_urb(urb, GFP_ATOMIC);
3322                 if (err < 0) {
3323                         if (err != -EPERM && err != -ENODEV)
3324                                 BT_ERR("%s urb %p submission failed (%d)",
3325                                        data->hdev->name, urb, -err);
3326                         kfree(urb->setup_packet);
3327                         usb_unanchor_urb(urb);
3328                         usb_free_urb(urb);
3329                         break;
3330                 }
3331
3332                 data->tx_in_flight++;
3333                 usb_free_urb(urb);
3334         }
3335
3336         /* Cleanup the rest deferred urbs. */
3337         while ((urb = usb_get_from_anchor(&data->deferred))) {
3338                 kfree(urb->setup_packet);
3339                 usb_free_urb(urb);
3340         }
3341 }
3342
3343 static int btusb_resume(struct usb_interface *intf)
3344 {
3345         struct btusb_data *data = usb_get_intfdata(intf);
3346         struct hci_dev *hdev = data->hdev;
3347         int err = 0;
3348
3349         BT_DBG("intf %p", intf);
3350
3351         if (--data->suspend_count)
3352                 return 0;
3353
3354         /* Disable only if not already disabled (keep it balanced) */
3355         if (test_and_clear_bit(BTUSB_OOB_WAKE_ENABLED, &data->flags)) {
3356                 disable_irq(data->oob_wake_irq);
3357                 disable_irq_wake(data->oob_wake_irq);
3358         }
3359
3360         if (!test_bit(HCI_RUNNING, &hdev->flags))
3361                 goto done;
3362
3363         if (test_bit(BTUSB_INTR_RUNNING, &data->flags)) {
3364                 err = btusb_submit_intr_urb(hdev, GFP_NOIO);
3365                 if (err < 0) {
3366                         clear_bit(BTUSB_INTR_RUNNING, &data->flags);
3367                         goto failed;
3368                 }
3369         }
3370
3371         if (test_bit(BTUSB_BULK_RUNNING, &data->flags)) {
3372                 err = btusb_submit_bulk_urb(hdev, GFP_NOIO);
3373                 if (err < 0) {
3374                         clear_bit(BTUSB_BULK_RUNNING, &data->flags);
3375                         goto failed;
3376                 }
3377
3378                 btusb_submit_bulk_urb(hdev, GFP_NOIO);
3379         }
3380
3381         if (test_bit(BTUSB_ISOC_RUNNING, &data->flags)) {
3382                 if (btusb_submit_isoc_urb(hdev, GFP_NOIO) < 0)
3383                         clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
3384                 else
3385                         btusb_submit_isoc_urb(hdev, GFP_NOIO);
3386         }
3387
3388         spin_lock_irq(&data->txlock);
3389         play_deferred(data);
3390         clear_bit(BTUSB_SUSPENDING, &data->flags);
3391         spin_unlock_irq(&data->txlock);
3392         schedule_work(&data->work);
3393
3394         return 0;
3395
3396 failed:
3397         usb_scuttle_anchored_urbs(&data->deferred);
3398 done:
3399         spin_lock_irq(&data->txlock);
3400         clear_bit(BTUSB_SUSPENDING, &data->flags);
3401         spin_unlock_irq(&data->txlock);
3402
3403         return err;
3404 }
3405 #endif
3406
3407 static struct usb_driver btusb_driver = {
3408         .name           = "btusb",
3409         .probe          = btusb_probe,
3410         .disconnect     = btusb_disconnect,
3411 #ifdef CONFIG_PM
3412         .suspend        = btusb_suspend,
3413         .resume         = btusb_resume,
3414 #endif
3415         .id_table       = btusb_table,
3416         .supports_autosuspend = 1,
3417         .disable_hub_initiated_lpm = 1,
3418 };
3419
3420 module_usb_driver(btusb_driver);
3421
3422 module_param(disable_scofix, bool, 0644);
3423 MODULE_PARM_DESC(disable_scofix, "Disable fixup of wrong SCO buffer size");
3424
3425 module_param(force_scofix, bool, 0644);
3426 MODULE_PARM_DESC(force_scofix, "Force fixup of wrong SCO buffers size");
3427
3428 module_param(reset, bool, 0644);
3429 MODULE_PARM_DESC(reset, "Send HCI reset command on initialization");
3430
3431 MODULE_AUTHOR("Marcel Holtmann <[email protected]>");
3432 MODULE_DESCRIPTION("Generic Bluetooth USB driver ver " VERSION);
3433 MODULE_VERSION(VERSION);
3434 MODULE_LICENSE("GPL");