1 /* 2 * 3 * Generic Bluetooth USB driver 4 * 5 * Copyright (C) 2005-2008 Marcel Holtmann <marcel@holtmann.org> 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 #define BTUSB_BCM_NO_PRODID 0x200000 70 71 static const struct usb_device_id btusb_table[] = { 72 /* Generic Bluetooth USB device */ 73 { USB_DEVICE_INFO(0xe0, 0x01, 0x01) }, 74 75 /* Generic Bluetooth AMP device */ 76 { USB_DEVICE_INFO(0xe0, 0x01, 0x04), .driver_info = BTUSB_AMP }, 77 78 /* Generic Bluetooth USB interface */ 79 { USB_INTERFACE_INFO(0xe0, 0x01, 0x01) }, 80 81 /* Apple-specific (Broadcom) devices */ 82 { USB_VENDOR_AND_INTERFACE_INFO(0x05ac, 0xff, 0x01, 0x01), 83 .driver_info = BTUSB_BCM_APPLE | BTUSB_IFNUM_2 }, 84 85 /* MediaTek MT76x0E */ 86 { USB_DEVICE(0x0e8d, 0x763f) }, 87 88 /* Broadcom SoftSailing reporting vendor specific */ 89 { USB_DEVICE(0x0a5c, 0x21e1) }, 90 91 /* Apple MacBookPro 7,1 */ 92 { USB_DEVICE(0x05ac, 0x8213) }, 93 94 /* Apple iMac11,1 */ 95 { USB_DEVICE(0x05ac, 0x8215) }, 96 97 /* Apple MacBookPro6,2 */ 98 { USB_DEVICE(0x05ac, 0x8218) }, 99 100 /* Apple MacBookAir3,1, MacBookAir3,2 */ 101 { USB_DEVICE(0x05ac, 0x821b) }, 102 103 /* Apple MacBookAir4,1 */ 104 { USB_DEVICE(0x05ac, 0x821f) }, 105 106 /* Apple MacBookPro8,2 */ 107 { USB_DEVICE(0x05ac, 0x821a) }, 108 109 /* Apple MacMini5,1 */ 110 { USB_DEVICE(0x05ac, 0x8281) }, 111 112 /* AVM BlueFRITZ! USB v2.0 */ 113 { USB_DEVICE(0x057c, 0x3800), .driver_info = BTUSB_SWAVE }, 114 115 /* Bluetooth Ultraport Module from IBM */ 116 { USB_DEVICE(0x04bf, 0x030a) }, 117 118 /* ALPS Modules with non-standard id */ 119 { USB_DEVICE(0x044e, 0x3001) }, 120 { USB_DEVICE(0x044e, 0x3002) }, 121 122 /* Ericsson with non-standard id */ 123 { USB_DEVICE(0x0bdb, 0x1002) }, 124 125 /* Canyon CN-BTU1 with HID interfaces */ 126 { USB_DEVICE(0x0c10, 0x0000) }, 127 128 /* Broadcom BCM20702A0 */ 129 { USB_DEVICE(0x413c, 0x8197) }, 130 131 /* Broadcom BCM20702B0 (Dynex/Insignia) */ 132 { USB_DEVICE(0x19ff, 0x0239), .driver_info = BTUSB_BCM_PATCHRAM }, 133 134 /* Broadcom BCM43142A0 (Foxconn/Lenovo) */ 135 { USB_VENDOR_AND_INTERFACE_INFO(0x105b, 0xff, 0x01, 0x01), 136 .driver_info = BTUSB_BCM_PATCHRAM }, 137 138 /* Broadcom BCM920703 (HTC Vive) */ 139 { USB_VENDOR_AND_INTERFACE_INFO(0x0bb4, 0xff, 0x01, 0x01), 140 .driver_info = BTUSB_BCM_PATCHRAM }, 141 142 /* Foxconn - Hon Hai */ 143 { USB_VENDOR_AND_INTERFACE_INFO(0x0489, 0xff, 0x01, 0x01), 144 .driver_info = BTUSB_BCM_PATCHRAM }, 145 146 /* Lite-On Technology - Broadcom based */ 147 { USB_VENDOR_AND_INTERFACE_INFO(0x04ca, 0xff, 0x01, 0x01), 148 .driver_info = BTUSB_BCM_PATCHRAM }, 149 150 /* Broadcom devices with vendor specific id */ 151 { USB_VENDOR_AND_INTERFACE_INFO(0x0a5c, 0xff, 0x01, 0x01), 152 .driver_info = BTUSB_BCM_PATCHRAM }, 153 154 /* ASUSTek Computer - Broadcom based */ 155 { USB_VENDOR_AND_INTERFACE_INFO(0x0b05, 0xff, 0x01, 0x01), 156 .driver_info = BTUSB_BCM_PATCHRAM }, 157 158 /* Belkin F8065bf - Broadcom based */ 159 { USB_VENDOR_AND_INTERFACE_INFO(0x050d, 0xff, 0x01, 0x01), 160 .driver_info = BTUSB_BCM_PATCHRAM }, 161 162 /* IMC Networks - Broadcom based */ 163 { USB_VENDOR_AND_INTERFACE_INFO(0x13d3, 0xff, 0x01, 0x01), 164 .driver_info = BTUSB_BCM_PATCHRAM }, 165 166 /* Dell Computer - Broadcom based */ 167 { USB_VENDOR_AND_INTERFACE_INFO(0x413c, 0xff, 0x01, 0x01), 168 .driver_info = BTUSB_BCM_PATCHRAM }, 169 170 /* Toshiba Corp - Broadcom based */ 171 { USB_VENDOR_AND_INTERFACE_INFO(0x0930, 0xff, 0x01, 0x01), 172 .driver_info = BTUSB_BCM_PATCHRAM }, 173 174 /* Broadcom devices with missing product id */ 175 { USB_DEVICE_AND_INTERFACE_INFO(0x0000, 0x0000, 0xff, 0x01, 0x01), 176 .driver_info = BTUSB_BCM_PATCHRAM | BTUSB_BCM_NO_PRODID }, 177 178 /* Intel Bluetooth USB Bootloader (RAM module) */ 179 { USB_DEVICE(0x8087, 0x0a5a), 180 .driver_info = BTUSB_INTEL_BOOT | BTUSB_BROKEN_ISOC }, 181 182 { } /* Terminating entry */ 183 }; 184 185 MODULE_DEVICE_TABLE(usb, btusb_table); 186 187 static const struct usb_device_id blacklist_table[] = { 188 /* CSR BlueCore devices */ 189 { USB_DEVICE(0x0a12, 0x0001), .driver_info = BTUSB_CSR }, 190 191 /* Broadcom BCM2033 without firmware */ 192 { USB_DEVICE(0x0a5c, 0x2033), .driver_info = BTUSB_IGNORE }, 193 194 /* Broadcom BCM2045 devices */ 195 { USB_DEVICE(0x0a5c, 0x2045), .driver_info = BTUSB_BCM2045 }, 196 197 /* Atheros 3011 with sflash firmware */ 198 { USB_DEVICE(0x0489, 0xe027), .driver_info = BTUSB_IGNORE }, 199 { USB_DEVICE(0x0489, 0xe03d), .driver_info = BTUSB_IGNORE }, 200 { USB_DEVICE(0x04f2, 0xaff1), .driver_info = BTUSB_IGNORE }, 201 { USB_DEVICE(0x0930, 0x0215), .driver_info = BTUSB_IGNORE }, 202 { USB_DEVICE(0x0cf3, 0x3002), .driver_info = BTUSB_IGNORE }, 203 { USB_DEVICE(0x0cf3, 0xe019), .driver_info = BTUSB_IGNORE }, 204 { USB_DEVICE(0x13d3, 0x3304), .driver_info = BTUSB_IGNORE }, 205 206 /* Atheros AR9285 Malbec with sflash firmware */ 207 { USB_DEVICE(0x03f0, 0x311d), .driver_info = BTUSB_IGNORE }, 208 209 /* Atheros 3012 with sflash firmware */ 210 { USB_DEVICE(0x0489, 0xe04d), .driver_info = BTUSB_ATH3012 }, 211 { USB_DEVICE(0x0489, 0xe04e), .driver_info = BTUSB_ATH3012 }, 212 { USB_DEVICE(0x0489, 0xe056), .driver_info = BTUSB_ATH3012 }, 213 { USB_DEVICE(0x0489, 0xe057), .driver_info = BTUSB_ATH3012 }, 214 { USB_DEVICE(0x0489, 0xe05f), .driver_info = BTUSB_ATH3012 }, 215 { USB_DEVICE(0x0489, 0xe076), .driver_info = BTUSB_ATH3012 }, 216 { USB_DEVICE(0x0489, 0xe078), .driver_info = BTUSB_ATH3012 }, 217 { USB_DEVICE(0x0489, 0xe095), .driver_info = BTUSB_ATH3012 }, 218 { USB_DEVICE(0x04c5, 0x1330), .driver_info = BTUSB_ATH3012 }, 219 { USB_DEVICE(0x04ca, 0x3004), .driver_info = BTUSB_ATH3012 }, 220 { USB_DEVICE(0x04ca, 0x3005), .driver_info = BTUSB_ATH3012 }, 221 { USB_DEVICE(0x04ca, 0x3006), .driver_info = BTUSB_ATH3012 }, 222 { USB_DEVICE(0x04ca, 0x3007), .driver_info = BTUSB_ATH3012 }, 223 { USB_DEVICE(0x04ca, 0x3008), .driver_info = BTUSB_ATH3012 }, 224 { USB_DEVICE(0x04ca, 0x300b), .driver_info = BTUSB_ATH3012 }, 225 { USB_DEVICE(0x04ca, 0x300d), .driver_info = BTUSB_ATH3012 }, 226 { USB_DEVICE(0x04ca, 0x300f), .driver_info = BTUSB_ATH3012 }, 227 { USB_DEVICE(0x04ca, 0x3010), .driver_info = BTUSB_ATH3012 }, 228 { USB_DEVICE(0x04ca, 0x3014), .driver_info = BTUSB_ATH3012 }, 229 { USB_DEVICE(0x04ca, 0x3018), .driver_info = BTUSB_ATH3012 }, 230 { USB_DEVICE(0x0930, 0x0219), .driver_info = BTUSB_ATH3012 }, 231 { USB_DEVICE(0x0930, 0x021c), .driver_info = BTUSB_ATH3012 }, 232 { USB_DEVICE(0x0930, 0x0220), .driver_info = BTUSB_ATH3012 }, 233 { USB_DEVICE(0x0930, 0x0227), .driver_info = BTUSB_ATH3012 }, 234 { USB_DEVICE(0x0b05, 0x17d0), .driver_info = BTUSB_ATH3012 }, 235 { USB_DEVICE(0x0cf3, 0x0036), .driver_info = BTUSB_ATH3012 }, 236 { USB_DEVICE(0x0cf3, 0x3004), .driver_info = BTUSB_ATH3012 }, 237 { USB_DEVICE(0x0cf3, 0x3008), .driver_info = BTUSB_ATH3012 }, 238 { USB_DEVICE(0x0cf3, 0x311d), .driver_info = BTUSB_ATH3012 }, 239 { USB_DEVICE(0x0cf3, 0x311e), .driver_info = BTUSB_ATH3012 }, 240 { USB_DEVICE(0x0cf3, 0x311f), .driver_info = BTUSB_ATH3012 }, 241 { USB_DEVICE(0x0cf3, 0x3121), .driver_info = BTUSB_ATH3012 }, 242 { USB_DEVICE(0x0cf3, 0x817a), .driver_info = BTUSB_ATH3012 }, 243 { USB_DEVICE(0x0cf3, 0x817b), .driver_info = BTUSB_ATH3012 }, 244 { USB_DEVICE(0x0cf3, 0xe003), .driver_info = BTUSB_ATH3012 }, 245 { USB_DEVICE(0x0cf3, 0xe004), .driver_info = BTUSB_ATH3012 }, 246 { USB_DEVICE(0x0cf3, 0xe005), .driver_info = BTUSB_ATH3012 }, 247 { USB_DEVICE(0x0cf3, 0xe006), .driver_info = BTUSB_ATH3012 }, 248 { USB_DEVICE(0x13d3, 0x3362), .driver_info = BTUSB_ATH3012 }, 249 { USB_DEVICE(0x13d3, 0x3375), .driver_info = BTUSB_ATH3012 }, 250 { USB_DEVICE(0x13d3, 0x3393), .driver_info = BTUSB_ATH3012 }, 251 { USB_DEVICE(0x13d3, 0x3395), .driver_info = BTUSB_ATH3012 }, 252 { USB_DEVICE(0x13d3, 0x3402), .driver_info = BTUSB_ATH3012 }, 253 { USB_DEVICE(0x13d3, 0x3408), .driver_info = BTUSB_ATH3012 }, 254 { USB_DEVICE(0x13d3, 0x3423), .driver_info = BTUSB_ATH3012 }, 255 { USB_DEVICE(0x13d3, 0x3432), .driver_info = BTUSB_ATH3012 }, 256 { USB_DEVICE(0x13d3, 0x3472), .driver_info = BTUSB_ATH3012 }, 257 { USB_DEVICE(0x13d3, 0x3474), .driver_info = BTUSB_ATH3012 }, 258 { USB_DEVICE(0x13d3, 0x3487), .driver_info = BTUSB_ATH3012 }, 259 { USB_DEVICE(0x13d3, 0x3490), .driver_info = BTUSB_ATH3012 }, 260 261 /* Atheros AR5BBU12 with sflash firmware */ 262 { USB_DEVICE(0x0489, 0xe02c), .driver_info = BTUSB_IGNORE }, 263 264 /* Atheros AR5BBU12 with sflash firmware */ 265 { USB_DEVICE(0x0489, 0xe036), .driver_info = BTUSB_ATH3012 }, 266 { USB_DEVICE(0x0489, 0xe03c), .driver_info = BTUSB_ATH3012 }, 267 268 /* QCA ROME chipset */ 269 { USB_DEVICE(0x0cf3, 0xe007), .driver_info = BTUSB_QCA_ROME }, 270 { USB_DEVICE(0x0cf3, 0xe009), .driver_info = BTUSB_QCA_ROME }, 271 { USB_DEVICE(0x0cf3, 0xe300), .driver_info = BTUSB_QCA_ROME }, 272 { USB_DEVICE(0x0cf3, 0xe301), .driver_info = BTUSB_QCA_ROME }, 273 { USB_DEVICE(0x0cf3, 0xe360), .driver_info = BTUSB_QCA_ROME }, 274 { USB_DEVICE(0x0489, 0xe092), .driver_info = BTUSB_QCA_ROME }, 275 { USB_DEVICE(0x0489, 0xe0a2), .driver_info = BTUSB_QCA_ROME }, 276 { USB_DEVICE(0x04ca, 0x3011), .driver_info = BTUSB_QCA_ROME }, 277 { USB_DEVICE(0x04ca, 0x3016), .driver_info = BTUSB_QCA_ROME }, 278 279 /* Broadcom BCM2035 */ 280 { USB_DEVICE(0x0a5c, 0x2009), .driver_info = BTUSB_BCM92035 }, 281 { USB_DEVICE(0x0a5c, 0x200a), .driver_info = BTUSB_WRONG_SCO_MTU }, 282 { USB_DEVICE(0x0a5c, 0x2035), .driver_info = BTUSB_WRONG_SCO_MTU }, 283 284 /* Broadcom BCM2045 */ 285 { USB_DEVICE(0x0a5c, 0x2039), .driver_info = BTUSB_WRONG_SCO_MTU }, 286 { USB_DEVICE(0x0a5c, 0x2101), .driver_info = BTUSB_WRONG_SCO_MTU }, 287 288 /* IBM/Lenovo ThinkPad with Broadcom chip */ 289 { USB_DEVICE(0x0a5c, 0x201e), .driver_info = BTUSB_WRONG_SCO_MTU }, 290 { USB_DEVICE(0x0a5c, 0x2110), .driver_info = BTUSB_WRONG_SCO_MTU }, 291 292 /* HP laptop with Broadcom chip */ 293 { USB_DEVICE(0x03f0, 0x171d), .driver_info = BTUSB_WRONG_SCO_MTU }, 294 295 /* Dell laptop with Broadcom chip */ 296 { USB_DEVICE(0x413c, 0x8126), .driver_info = BTUSB_WRONG_SCO_MTU }, 297 298 /* Dell Wireless 370 and 410 devices */ 299 { USB_DEVICE(0x413c, 0x8152), .driver_info = BTUSB_WRONG_SCO_MTU }, 300 { USB_DEVICE(0x413c, 0x8156), .driver_info = BTUSB_WRONG_SCO_MTU }, 301 302 /* Belkin F8T012 and F8T013 devices */ 303 { USB_DEVICE(0x050d, 0x0012), .driver_info = BTUSB_WRONG_SCO_MTU }, 304 { USB_DEVICE(0x050d, 0x0013), .driver_info = BTUSB_WRONG_SCO_MTU }, 305 306 /* Asus WL-BTD202 device */ 307 { USB_DEVICE(0x0b05, 0x1715), .driver_info = BTUSB_WRONG_SCO_MTU }, 308 309 /* Kensington Bluetooth USB adapter */ 310 { USB_DEVICE(0x047d, 0x105e), .driver_info = BTUSB_WRONG_SCO_MTU }, 311 312 /* RTX Telecom based adapters with buggy SCO support */ 313 { USB_DEVICE(0x0400, 0x0807), .driver_info = BTUSB_BROKEN_ISOC }, 314 { USB_DEVICE(0x0400, 0x080a), .driver_info = BTUSB_BROKEN_ISOC }, 315 316 /* CONWISE Technology based adapters with buggy SCO support */ 317 { USB_DEVICE(0x0e5e, 0x6622), 318 .driver_info = BTUSB_BROKEN_ISOC | BTUSB_CW6622}, 319 320 /* Roper Class 1 Bluetooth Dongle (Silicon Wave based) */ 321 { USB_DEVICE(0x1310, 0x0001), .driver_info = BTUSB_SWAVE }, 322 323 /* Digianswer devices */ 324 { USB_DEVICE(0x08fd, 0x0001), .driver_info = BTUSB_DIGIANSWER }, 325 { USB_DEVICE(0x08fd, 0x0002), .driver_info = BTUSB_IGNORE }, 326 327 /* CSR BlueCore Bluetooth Sniffer */ 328 { USB_DEVICE(0x0a12, 0x0002), 329 .driver_info = BTUSB_SNIFFER | BTUSB_BROKEN_ISOC }, 330 331 /* Frontline ComProbe Bluetooth Sniffer */ 332 { USB_DEVICE(0x16d3, 0x0002), 333 .driver_info = BTUSB_SNIFFER | BTUSB_BROKEN_ISOC }, 334 335 /* Marvell Bluetooth devices */ 336 { USB_DEVICE(0x1286, 0x2044), .driver_info = BTUSB_MARVELL }, 337 { USB_DEVICE(0x1286, 0x2046), .driver_info = BTUSB_MARVELL }, 338 { USB_DEVICE(0x1286, 0x204e), .driver_info = BTUSB_MARVELL }, 339 340 /* Intel Bluetooth devices */ 341 { USB_DEVICE(0x8087, 0x0025), .driver_info = BTUSB_INTEL_NEW }, 342 { USB_DEVICE(0x8087, 0x07da), .driver_info = BTUSB_CSR }, 343 { USB_DEVICE(0x8087, 0x07dc), .driver_info = BTUSB_INTEL }, 344 { USB_DEVICE(0x8087, 0x0a2a), .driver_info = BTUSB_INTEL }, 345 { USB_DEVICE(0x8087, 0x0a2b), .driver_info = BTUSB_INTEL_NEW }, 346 { USB_DEVICE(0x8087, 0x0aa7), .driver_info = BTUSB_INTEL }, 347 { USB_DEVICE(0x8087, 0x0aaa), .driver_info = BTUSB_INTEL_NEW }, 348 349 /* Other Intel Bluetooth devices */ 350 { USB_VENDOR_AND_INTERFACE_INFO(0x8087, 0xe0, 0x01, 0x01), 351 .driver_info = BTUSB_IGNORE }, 352 353 /* Realtek Bluetooth devices */ 354 { USB_VENDOR_AND_INTERFACE_INFO(0x0bda, 0xe0, 0x01, 0x01), 355 .driver_info = BTUSB_REALTEK }, 356 357 /* Additional Realtek 8723AE Bluetooth devices */ 358 { USB_DEVICE(0x0930, 0x021d), .driver_info = BTUSB_REALTEK }, 359 { USB_DEVICE(0x13d3, 0x3394), .driver_info = BTUSB_REALTEK }, 360 361 /* Additional Realtek 8723BE Bluetooth devices */ 362 { USB_DEVICE(0x0489, 0xe085), .driver_info = BTUSB_REALTEK }, 363 { USB_DEVICE(0x0489, 0xe08b), .driver_info = BTUSB_REALTEK }, 364 { USB_DEVICE(0x13d3, 0x3410), .driver_info = BTUSB_REALTEK }, 365 { USB_DEVICE(0x13d3, 0x3416), .driver_info = BTUSB_REALTEK }, 366 { USB_DEVICE(0x13d3, 0x3459), .driver_info = BTUSB_REALTEK }, 367 { USB_DEVICE(0x13d3, 0x3494), .driver_info = BTUSB_REALTEK }, 368 369 /* Additional Realtek 8821AE Bluetooth devices */ 370 { USB_DEVICE(0x0b05, 0x17dc), .driver_info = BTUSB_REALTEK }, 371 { USB_DEVICE(0x13d3, 0x3414), .driver_info = BTUSB_REALTEK }, 372 { USB_DEVICE(0x13d3, 0x3458), .driver_info = BTUSB_REALTEK }, 373 { USB_DEVICE(0x13d3, 0x3461), .driver_info = BTUSB_REALTEK }, 374 { USB_DEVICE(0x13d3, 0x3462), .driver_info = BTUSB_REALTEK }, 375 376 /* Silicon Wave based devices */ 377 { USB_DEVICE(0x0c10, 0x0000), .driver_info = BTUSB_SWAVE }, 378 379 { } /* Terminating entry */ 380 }; 381 382 #define BTUSB_MAX_ISOC_FRAMES 10 383 384 #define BTUSB_INTR_RUNNING 0 385 #define BTUSB_BULK_RUNNING 1 386 #define BTUSB_ISOC_RUNNING 2 387 #define BTUSB_SUSPENDING 3 388 #define BTUSB_DID_ISO_RESUME 4 389 #define BTUSB_BOOTLOADER 5 390 #define BTUSB_DOWNLOADING 6 391 #define BTUSB_FIRMWARE_LOADED 7 392 #define BTUSB_FIRMWARE_FAILED 8 393 #define BTUSB_BOOTING 9 394 #define BTUSB_RESET_RESUME 10 395 #define BTUSB_DIAG_RUNNING 11 396 #define BTUSB_OOB_WAKE_ENABLED 12 397 398 struct btusb_data { 399 struct hci_dev *hdev; 400 struct usb_device *udev; 401 struct usb_interface *intf; 402 struct usb_interface *isoc; 403 struct usb_interface *diag; 404 405 unsigned long flags; 406 407 struct work_struct work; 408 struct work_struct waker; 409 410 struct usb_anchor deferred; 411 struct usb_anchor tx_anchor; 412 int tx_in_flight; 413 spinlock_t txlock; 414 415 struct usb_anchor intr_anchor; 416 struct usb_anchor bulk_anchor; 417 struct usb_anchor isoc_anchor; 418 struct usb_anchor diag_anchor; 419 spinlock_t rxlock; 420 421 struct sk_buff *evt_skb; 422 struct sk_buff *acl_skb; 423 struct sk_buff *sco_skb; 424 425 struct usb_endpoint_descriptor *intr_ep; 426 struct usb_endpoint_descriptor *bulk_tx_ep; 427 struct usb_endpoint_descriptor *bulk_rx_ep; 428 struct usb_endpoint_descriptor *isoc_tx_ep; 429 struct usb_endpoint_descriptor *isoc_rx_ep; 430 struct usb_endpoint_descriptor *diag_tx_ep; 431 struct usb_endpoint_descriptor *diag_rx_ep; 432 433 __u8 cmdreq_type; 434 __u8 cmdreq; 435 436 unsigned int sco_num; 437 int isoc_altsetting; 438 int suspend_count; 439 440 int (*recv_event)(struct hci_dev *hdev, struct sk_buff *skb); 441 int (*recv_bulk)(struct btusb_data *data, void *buffer, int count); 442 443 int (*setup_on_usb)(struct hci_dev *hdev); 444 445 int oob_wake_irq; /* irq for out-of-band wake-on-bt */ 446 }; 447 448 static inline void btusb_free_frags(struct btusb_data *data) 449 { 450 unsigned long flags; 451 452 spin_lock_irqsave(&data->rxlock, flags); 453 454 kfree_skb(data->evt_skb); 455 data->evt_skb = NULL; 456 457 kfree_skb(data->acl_skb); 458 data->acl_skb = NULL; 459 460 kfree_skb(data->sco_skb); 461 data->sco_skb = NULL; 462 463 spin_unlock_irqrestore(&data->rxlock, flags); 464 } 465 466 static int btusb_recv_intr(struct btusb_data *data, void *buffer, int count) 467 { 468 struct sk_buff *skb; 469 int err = 0; 470 471 spin_lock(&data->rxlock); 472 skb = data->evt_skb; 473 474 while (count) { 475 int len; 476 477 if (!skb) { 478 skb = bt_skb_alloc(HCI_MAX_EVENT_SIZE, GFP_ATOMIC); 479 if (!skb) { 480 err = -ENOMEM; 481 break; 482 } 483 484 hci_skb_pkt_type(skb) = HCI_EVENT_PKT; 485 hci_skb_expect(skb) = HCI_EVENT_HDR_SIZE; 486 } 487 488 len = min_t(uint, hci_skb_expect(skb), count); 489 skb_put_data(skb, buffer, len); 490 491 count -= len; 492 buffer += len; 493 hci_skb_expect(skb) -= len; 494 495 if (skb->len == HCI_EVENT_HDR_SIZE) { 496 /* Complete event header */ 497 hci_skb_expect(skb) = hci_event_hdr(skb)->plen; 498 499 if (skb_tailroom(skb) < hci_skb_expect(skb)) { 500 kfree_skb(skb); 501 skb = NULL; 502 503 err = -EILSEQ; 504 break; 505 } 506 } 507 508 if (!hci_skb_expect(skb)) { 509 /* Complete frame */ 510 data->recv_event(data->hdev, skb); 511 skb = NULL; 512 } 513 } 514 515 data->evt_skb = skb; 516 spin_unlock(&data->rxlock); 517 518 return err; 519 } 520 521 static int btusb_recv_bulk(struct btusb_data *data, void *buffer, int count) 522 { 523 struct sk_buff *skb; 524 int err = 0; 525 526 spin_lock(&data->rxlock); 527 skb = data->acl_skb; 528 529 while (count) { 530 int len; 531 532 if (!skb) { 533 skb = bt_skb_alloc(HCI_MAX_FRAME_SIZE, GFP_ATOMIC); 534 if (!skb) { 535 err = -ENOMEM; 536 break; 537 } 538 539 hci_skb_pkt_type(skb) = HCI_ACLDATA_PKT; 540 hci_skb_expect(skb) = HCI_ACL_HDR_SIZE; 541 } 542 543 len = min_t(uint, hci_skb_expect(skb), count); 544 skb_put_data(skb, buffer, len); 545 546 count -= len; 547 buffer += len; 548 hci_skb_expect(skb) -= len; 549 550 if (skb->len == HCI_ACL_HDR_SIZE) { 551 __le16 dlen = hci_acl_hdr(skb)->dlen; 552 553 /* Complete ACL header */ 554 hci_skb_expect(skb) = __le16_to_cpu(dlen); 555 556 if (skb_tailroom(skb) < hci_skb_expect(skb)) { 557 kfree_skb(skb); 558 skb = NULL; 559 560 err = -EILSEQ; 561 break; 562 } 563 } 564 565 if (!hci_skb_expect(skb)) { 566 /* Complete frame */ 567 hci_recv_frame(data->hdev, skb); 568 skb = NULL; 569 } 570 } 571 572 data->acl_skb = skb; 573 spin_unlock(&data->rxlock); 574 575 return err; 576 } 577 578 static int btusb_recv_isoc(struct btusb_data *data, void *buffer, int count) 579 { 580 struct sk_buff *skb; 581 int err = 0; 582 583 spin_lock(&data->rxlock); 584 skb = data->sco_skb; 585 586 while (count) { 587 int len; 588 589 if (!skb) { 590 skb = bt_skb_alloc(HCI_MAX_SCO_SIZE, GFP_ATOMIC); 591 if (!skb) { 592 err = -ENOMEM; 593 break; 594 } 595 596 hci_skb_pkt_type(skb) = HCI_SCODATA_PKT; 597 hci_skb_expect(skb) = HCI_SCO_HDR_SIZE; 598 } 599 600 len = min_t(uint, hci_skb_expect(skb), count); 601 skb_put_data(skb, buffer, len); 602 603 count -= len; 604 buffer += len; 605 hci_skb_expect(skb) -= len; 606 607 if (skb->len == HCI_SCO_HDR_SIZE) { 608 /* Complete SCO header */ 609 hci_skb_expect(skb) = hci_sco_hdr(skb)->dlen; 610 611 if (skb_tailroom(skb) < hci_skb_expect(skb)) { 612 kfree_skb(skb); 613 skb = NULL; 614 615 err = -EILSEQ; 616 break; 617 } 618 } 619 620 if (!hci_skb_expect(skb)) { 621 /* Complete frame */ 622 hci_recv_frame(data->hdev, skb); 623 skb = NULL; 624 } 625 } 626 627 data->sco_skb = skb; 628 spin_unlock(&data->rxlock); 629 630 return err; 631 } 632 633 static void btusb_intr_complete(struct urb *urb) 634 { 635 struct hci_dev *hdev = urb->context; 636 struct btusb_data *data = hci_get_drvdata(hdev); 637 int err; 638 639 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status, 640 urb->actual_length); 641 642 if (!test_bit(HCI_RUNNING, &hdev->flags)) 643 return; 644 645 if (urb->status == 0) { 646 hdev->stat.byte_rx += urb->actual_length; 647 648 if (btusb_recv_intr(data, urb->transfer_buffer, 649 urb->actual_length) < 0) { 650 BT_ERR("%s corrupted event packet", hdev->name); 651 hdev->stat.err_rx++; 652 } 653 } else if (urb->status == -ENOENT) { 654 /* Avoid suspend failed when usb_kill_urb */ 655 return; 656 } 657 658 if (!test_bit(BTUSB_INTR_RUNNING, &data->flags)) 659 return; 660 661 usb_mark_last_busy(data->udev); 662 usb_anchor_urb(urb, &data->intr_anchor); 663 664 err = usb_submit_urb(urb, GFP_ATOMIC); 665 if (err < 0) { 666 /* -EPERM: urb is being killed; 667 * -ENODEV: device got disconnected 668 */ 669 if (err != -EPERM && err != -ENODEV) 670 BT_ERR("%s urb %p failed to resubmit (%d)", 671 hdev->name, urb, -err); 672 usb_unanchor_urb(urb); 673 } 674 } 675 676 static int btusb_submit_intr_urb(struct hci_dev *hdev, gfp_t mem_flags) 677 { 678 struct btusb_data *data = hci_get_drvdata(hdev); 679 struct urb *urb; 680 unsigned char *buf; 681 unsigned int pipe; 682 int err, size; 683 684 BT_DBG("%s", hdev->name); 685 686 if (!data->intr_ep) 687 return -ENODEV; 688 689 urb = usb_alloc_urb(0, mem_flags); 690 if (!urb) 691 return -ENOMEM; 692 693 size = le16_to_cpu(data->intr_ep->wMaxPacketSize); 694 695 buf = kmalloc(size, mem_flags); 696 if (!buf) { 697 usb_free_urb(urb); 698 return -ENOMEM; 699 } 700 701 pipe = usb_rcvintpipe(data->udev, data->intr_ep->bEndpointAddress); 702 703 usb_fill_int_urb(urb, data->udev, pipe, buf, size, 704 btusb_intr_complete, hdev, data->intr_ep->bInterval); 705 706 urb->transfer_flags |= URB_FREE_BUFFER; 707 708 usb_anchor_urb(urb, &data->intr_anchor); 709 710 err = usb_submit_urb(urb, mem_flags); 711 if (err < 0) { 712 if (err != -EPERM && err != -ENODEV) 713 BT_ERR("%s urb %p submission failed (%d)", 714 hdev->name, urb, -err); 715 usb_unanchor_urb(urb); 716 } 717 718 usb_free_urb(urb); 719 720 return err; 721 } 722 723 static void btusb_bulk_complete(struct urb *urb) 724 { 725 struct hci_dev *hdev = urb->context; 726 struct btusb_data *data = hci_get_drvdata(hdev); 727 int err; 728 729 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status, 730 urb->actual_length); 731 732 if (!test_bit(HCI_RUNNING, &hdev->flags)) 733 return; 734 735 if (urb->status == 0) { 736 hdev->stat.byte_rx += urb->actual_length; 737 738 if (data->recv_bulk(data, urb->transfer_buffer, 739 urb->actual_length) < 0) { 740 BT_ERR("%s corrupted ACL packet", hdev->name); 741 hdev->stat.err_rx++; 742 } 743 } else if (urb->status == -ENOENT) { 744 /* Avoid suspend failed when usb_kill_urb */ 745 return; 746 } 747 748 if (!test_bit(BTUSB_BULK_RUNNING, &data->flags)) 749 return; 750 751 usb_anchor_urb(urb, &data->bulk_anchor); 752 usb_mark_last_busy(data->udev); 753 754 err = usb_submit_urb(urb, GFP_ATOMIC); 755 if (err < 0) { 756 /* -EPERM: urb is being killed; 757 * -ENODEV: device got disconnected 758 */ 759 if (err != -EPERM && err != -ENODEV) 760 BT_ERR("%s urb %p failed to resubmit (%d)", 761 hdev->name, urb, -err); 762 usb_unanchor_urb(urb); 763 } 764 } 765 766 static int btusb_submit_bulk_urb(struct hci_dev *hdev, gfp_t mem_flags) 767 { 768 struct btusb_data *data = hci_get_drvdata(hdev); 769 struct urb *urb; 770 unsigned char *buf; 771 unsigned int pipe; 772 int err, size = HCI_MAX_FRAME_SIZE; 773 774 BT_DBG("%s", hdev->name); 775 776 if (!data->bulk_rx_ep) 777 return -ENODEV; 778 779 urb = usb_alloc_urb(0, mem_flags); 780 if (!urb) 781 return -ENOMEM; 782 783 buf = kmalloc(size, mem_flags); 784 if (!buf) { 785 usb_free_urb(urb); 786 return -ENOMEM; 787 } 788 789 pipe = usb_rcvbulkpipe(data->udev, data->bulk_rx_ep->bEndpointAddress); 790 791 usb_fill_bulk_urb(urb, data->udev, pipe, buf, size, 792 btusb_bulk_complete, hdev); 793 794 urb->transfer_flags |= URB_FREE_BUFFER; 795 796 usb_mark_last_busy(data->udev); 797 usb_anchor_urb(urb, &data->bulk_anchor); 798 799 err = usb_submit_urb(urb, mem_flags); 800 if (err < 0) { 801 if (err != -EPERM && err != -ENODEV) 802 BT_ERR("%s urb %p submission failed (%d)", 803 hdev->name, urb, -err); 804 usb_unanchor_urb(urb); 805 } 806 807 usb_free_urb(urb); 808 809 return err; 810 } 811 812 static void btusb_isoc_complete(struct urb *urb) 813 { 814 struct hci_dev *hdev = urb->context; 815 struct btusb_data *data = hci_get_drvdata(hdev); 816 int i, err; 817 818 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status, 819 urb->actual_length); 820 821 if (!test_bit(HCI_RUNNING, &hdev->flags)) 822 return; 823 824 if (urb->status == 0) { 825 for (i = 0; i < urb->number_of_packets; i++) { 826 unsigned int offset = urb->iso_frame_desc[i].offset; 827 unsigned int length = urb->iso_frame_desc[i].actual_length; 828 829 if (urb->iso_frame_desc[i].status) 830 continue; 831 832 hdev->stat.byte_rx += length; 833 834 if (btusb_recv_isoc(data, urb->transfer_buffer + offset, 835 length) < 0) { 836 BT_ERR("%s corrupted SCO packet", hdev->name); 837 hdev->stat.err_rx++; 838 } 839 } 840 } else if (urb->status == -ENOENT) { 841 /* Avoid suspend failed when usb_kill_urb */ 842 return; 843 } 844 845 if (!test_bit(BTUSB_ISOC_RUNNING, &data->flags)) 846 return; 847 848 usb_anchor_urb(urb, &data->isoc_anchor); 849 850 err = usb_submit_urb(urb, GFP_ATOMIC); 851 if (err < 0) { 852 /* -EPERM: urb is being killed; 853 * -ENODEV: device got disconnected 854 */ 855 if (err != -EPERM && err != -ENODEV) 856 BT_ERR("%s urb %p failed to resubmit (%d)", 857 hdev->name, urb, -err); 858 usb_unanchor_urb(urb); 859 } 860 } 861 862 static inline void __fill_isoc_descriptor(struct urb *urb, int len, int mtu) 863 { 864 int i, offset = 0; 865 866 BT_DBG("len %d mtu %d", len, mtu); 867 868 for (i = 0; i < BTUSB_MAX_ISOC_FRAMES && len >= mtu; 869 i++, offset += mtu, len -= mtu) { 870 urb->iso_frame_desc[i].offset = offset; 871 urb->iso_frame_desc[i].length = mtu; 872 } 873 874 if (len && i < BTUSB_MAX_ISOC_FRAMES) { 875 urb->iso_frame_desc[i].offset = offset; 876 urb->iso_frame_desc[i].length = len; 877 i++; 878 } 879 880 urb->number_of_packets = i; 881 } 882 883 static int btusb_submit_isoc_urb(struct hci_dev *hdev, gfp_t mem_flags) 884 { 885 struct btusb_data *data = hci_get_drvdata(hdev); 886 struct urb *urb; 887 unsigned char *buf; 888 unsigned int pipe; 889 int err, size; 890 891 BT_DBG("%s", hdev->name); 892 893 if (!data->isoc_rx_ep) 894 return -ENODEV; 895 896 urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, mem_flags); 897 if (!urb) 898 return -ENOMEM; 899 900 size = le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize) * 901 BTUSB_MAX_ISOC_FRAMES; 902 903 buf = kmalloc(size, mem_flags); 904 if (!buf) { 905 usb_free_urb(urb); 906 return -ENOMEM; 907 } 908 909 pipe = usb_rcvisocpipe(data->udev, data->isoc_rx_ep->bEndpointAddress); 910 911 usb_fill_int_urb(urb, data->udev, pipe, buf, size, btusb_isoc_complete, 912 hdev, data->isoc_rx_ep->bInterval); 913 914 urb->transfer_flags = URB_FREE_BUFFER | URB_ISO_ASAP; 915 916 __fill_isoc_descriptor(urb, size, 917 le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize)); 918 919 usb_anchor_urb(urb, &data->isoc_anchor); 920 921 err = usb_submit_urb(urb, mem_flags); 922 if (err < 0) { 923 if (err != -EPERM && err != -ENODEV) 924 BT_ERR("%s urb %p submission failed (%d)", 925 hdev->name, urb, -err); 926 usb_unanchor_urb(urb); 927 } 928 929 usb_free_urb(urb); 930 931 return err; 932 } 933 934 static void btusb_diag_complete(struct urb *urb) 935 { 936 struct hci_dev *hdev = urb->context; 937 struct btusb_data *data = hci_get_drvdata(hdev); 938 int err; 939 940 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status, 941 urb->actual_length); 942 943 if (urb->status == 0) { 944 struct sk_buff *skb; 945 946 skb = bt_skb_alloc(urb->actual_length, GFP_ATOMIC); 947 if (skb) { 948 skb_put_data(skb, urb->transfer_buffer, 949 urb->actual_length); 950 hci_recv_diag(hdev, skb); 951 } 952 } else if (urb->status == -ENOENT) { 953 /* Avoid suspend failed when usb_kill_urb */ 954 return; 955 } 956 957 if (!test_bit(BTUSB_DIAG_RUNNING, &data->flags)) 958 return; 959 960 usb_anchor_urb(urb, &data->diag_anchor); 961 usb_mark_last_busy(data->udev); 962 963 err = usb_submit_urb(urb, GFP_ATOMIC); 964 if (err < 0) { 965 /* -EPERM: urb is being killed; 966 * -ENODEV: device got disconnected 967 */ 968 if (err != -EPERM && err != -ENODEV) 969 BT_ERR("%s urb %p failed to resubmit (%d)", 970 hdev->name, urb, -err); 971 usb_unanchor_urb(urb); 972 } 973 } 974 975 static int btusb_submit_diag_urb(struct hci_dev *hdev, gfp_t mem_flags) 976 { 977 struct btusb_data *data = hci_get_drvdata(hdev); 978 struct urb *urb; 979 unsigned char *buf; 980 unsigned int pipe; 981 int err, size = HCI_MAX_FRAME_SIZE; 982 983 BT_DBG("%s", hdev->name); 984 985 if (!data->diag_rx_ep) 986 return -ENODEV; 987 988 urb = usb_alloc_urb(0, mem_flags); 989 if (!urb) 990 return -ENOMEM; 991 992 buf = kmalloc(size, mem_flags); 993 if (!buf) { 994 usb_free_urb(urb); 995 return -ENOMEM; 996 } 997 998 pipe = usb_rcvbulkpipe(data->udev, data->diag_rx_ep->bEndpointAddress); 999 1000 usb_fill_bulk_urb(urb, data->udev, pipe, buf, size, 1001 btusb_diag_complete, hdev); 1002 1003 urb->transfer_flags |= URB_FREE_BUFFER; 1004 1005 usb_mark_last_busy(data->udev); 1006 usb_anchor_urb(urb, &data->diag_anchor); 1007 1008 err = usb_submit_urb(urb, mem_flags); 1009 if (err < 0) { 1010 if (err != -EPERM && err != -ENODEV) 1011 BT_ERR("%s urb %p submission failed (%d)", 1012 hdev->name, urb, -err); 1013 usb_unanchor_urb(urb); 1014 } 1015 1016 usb_free_urb(urb); 1017 1018 return err; 1019 } 1020 1021 static void btusb_tx_complete(struct urb *urb) 1022 { 1023 struct sk_buff *skb = urb->context; 1024 struct hci_dev *hdev = (struct hci_dev *)skb->dev; 1025 struct btusb_data *data = hci_get_drvdata(hdev); 1026 1027 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status, 1028 urb->actual_length); 1029 1030 if (!test_bit(HCI_RUNNING, &hdev->flags)) 1031 goto done; 1032 1033 if (!urb->status) 1034 hdev->stat.byte_tx += urb->transfer_buffer_length; 1035 else 1036 hdev->stat.err_tx++; 1037 1038 done: 1039 spin_lock(&data->txlock); 1040 data->tx_in_flight--; 1041 spin_unlock(&data->txlock); 1042 1043 kfree(urb->setup_packet); 1044 1045 kfree_skb(skb); 1046 } 1047 1048 static void btusb_isoc_tx_complete(struct urb *urb) 1049 { 1050 struct sk_buff *skb = urb->context; 1051 struct hci_dev *hdev = (struct hci_dev *)skb->dev; 1052 1053 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status, 1054 urb->actual_length); 1055 1056 if (!test_bit(HCI_RUNNING, &hdev->flags)) 1057 goto done; 1058 1059 if (!urb->status) 1060 hdev->stat.byte_tx += urb->transfer_buffer_length; 1061 else 1062 hdev->stat.err_tx++; 1063 1064 done: 1065 kfree(urb->setup_packet); 1066 1067 kfree_skb(skb); 1068 } 1069 1070 static int btusb_open(struct hci_dev *hdev) 1071 { 1072 struct btusb_data *data = hci_get_drvdata(hdev); 1073 int err; 1074 1075 BT_DBG("%s", hdev->name); 1076 1077 err = usb_autopm_get_interface(data->intf); 1078 if (err < 0) 1079 return err; 1080 1081 /* Patching USB firmware files prior to starting any URBs of HCI path 1082 * It is more safe to use USB bulk channel for downloading USB patch 1083 */ 1084 if (data->setup_on_usb) { 1085 err = data->setup_on_usb(hdev); 1086 if (err < 0) 1087 return err; 1088 } 1089 1090 data->intf->needs_remote_wakeup = 1; 1091 /* device specific wakeup source enabled and required for USB 1092 * remote wakeup while host is suspended 1093 */ 1094 device_wakeup_enable(&data->udev->dev); 1095 1096 if (test_and_set_bit(BTUSB_INTR_RUNNING, &data->flags)) 1097 goto done; 1098 1099 err = btusb_submit_intr_urb(hdev, GFP_KERNEL); 1100 if (err < 0) 1101 goto failed; 1102 1103 err = btusb_submit_bulk_urb(hdev, GFP_KERNEL); 1104 if (err < 0) { 1105 usb_kill_anchored_urbs(&data->intr_anchor); 1106 goto failed; 1107 } 1108 1109 set_bit(BTUSB_BULK_RUNNING, &data->flags); 1110 btusb_submit_bulk_urb(hdev, GFP_KERNEL); 1111 1112 if (data->diag) { 1113 if (!btusb_submit_diag_urb(hdev, GFP_KERNEL)) 1114 set_bit(BTUSB_DIAG_RUNNING, &data->flags); 1115 } 1116 1117 done: 1118 usb_autopm_put_interface(data->intf); 1119 return 0; 1120 1121 failed: 1122 clear_bit(BTUSB_INTR_RUNNING, &data->flags); 1123 usb_autopm_put_interface(data->intf); 1124 return err; 1125 } 1126 1127 static void btusb_stop_traffic(struct btusb_data *data) 1128 { 1129 usb_kill_anchored_urbs(&data->intr_anchor); 1130 usb_kill_anchored_urbs(&data->bulk_anchor); 1131 usb_kill_anchored_urbs(&data->isoc_anchor); 1132 usb_kill_anchored_urbs(&data->diag_anchor); 1133 } 1134 1135 static int btusb_close(struct hci_dev *hdev) 1136 { 1137 struct btusb_data *data = hci_get_drvdata(hdev); 1138 int err; 1139 1140 BT_DBG("%s", hdev->name); 1141 1142 cancel_work_sync(&data->work); 1143 cancel_work_sync(&data->waker); 1144 1145 clear_bit(BTUSB_ISOC_RUNNING, &data->flags); 1146 clear_bit(BTUSB_BULK_RUNNING, &data->flags); 1147 clear_bit(BTUSB_INTR_RUNNING, &data->flags); 1148 clear_bit(BTUSB_DIAG_RUNNING, &data->flags); 1149 1150 btusb_stop_traffic(data); 1151 btusb_free_frags(data); 1152 1153 err = usb_autopm_get_interface(data->intf); 1154 if (err < 0) 1155 goto failed; 1156 1157 data->intf->needs_remote_wakeup = 0; 1158 device_wakeup_disable(&data->udev->dev); 1159 usb_autopm_put_interface(data->intf); 1160 1161 failed: 1162 usb_scuttle_anchored_urbs(&data->deferred); 1163 return 0; 1164 } 1165 1166 static int btusb_flush(struct hci_dev *hdev) 1167 { 1168 struct btusb_data *data = hci_get_drvdata(hdev); 1169 1170 BT_DBG("%s", hdev->name); 1171 1172 usb_kill_anchored_urbs(&data->tx_anchor); 1173 btusb_free_frags(data); 1174 1175 return 0; 1176 } 1177 1178 static struct urb *alloc_ctrl_urb(struct hci_dev *hdev, struct sk_buff *skb) 1179 { 1180 struct btusb_data *data = hci_get_drvdata(hdev); 1181 struct usb_ctrlrequest *dr; 1182 struct urb *urb; 1183 unsigned int pipe; 1184 1185 urb = usb_alloc_urb(0, GFP_KERNEL); 1186 if (!urb) 1187 return ERR_PTR(-ENOMEM); 1188 1189 dr = kmalloc(sizeof(*dr), GFP_KERNEL); 1190 if (!dr) { 1191 usb_free_urb(urb); 1192 return ERR_PTR(-ENOMEM); 1193 } 1194 1195 dr->bRequestType = data->cmdreq_type; 1196 dr->bRequest = data->cmdreq; 1197 dr->wIndex = 0; 1198 dr->wValue = 0; 1199 dr->wLength = __cpu_to_le16(skb->len); 1200 1201 pipe = usb_sndctrlpipe(data->udev, 0x00); 1202 1203 usb_fill_control_urb(urb, data->udev, pipe, (void *)dr, 1204 skb->data, skb->len, btusb_tx_complete, skb); 1205 1206 skb->dev = (void *)hdev; 1207 1208 return urb; 1209 } 1210 1211 static struct urb *alloc_bulk_urb(struct hci_dev *hdev, struct sk_buff *skb) 1212 { 1213 struct btusb_data *data = hci_get_drvdata(hdev); 1214 struct urb *urb; 1215 unsigned int pipe; 1216 1217 if (!data->bulk_tx_ep) 1218 return ERR_PTR(-ENODEV); 1219 1220 urb = usb_alloc_urb(0, GFP_KERNEL); 1221 if (!urb) 1222 return ERR_PTR(-ENOMEM); 1223 1224 pipe = usb_sndbulkpipe(data->udev, data->bulk_tx_ep->bEndpointAddress); 1225 1226 usb_fill_bulk_urb(urb, data->udev, pipe, 1227 skb->data, skb->len, btusb_tx_complete, skb); 1228 1229 skb->dev = (void *)hdev; 1230 1231 return urb; 1232 } 1233 1234 static struct urb *alloc_isoc_urb(struct hci_dev *hdev, struct sk_buff *skb) 1235 { 1236 struct btusb_data *data = hci_get_drvdata(hdev); 1237 struct urb *urb; 1238 unsigned int pipe; 1239 1240 if (!data->isoc_tx_ep) 1241 return ERR_PTR(-ENODEV); 1242 1243 urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, GFP_KERNEL); 1244 if (!urb) 1245 return ERR_PTR(-ENOMEM); 1246 1247 pipe = usb_sndisocpipe(data->udev, data->isoc_tx_ep->bEndpointAddress); 1248 1249 usb_fill_int_urb(urb, data->udev, pipe, 1250 skb->data, skb->len, btusb_isoc_tx_complete, 1251 skb, data->isoc_tx_ep->bInterval); 1252 1253 urb->transfer_flags = URB_ISO_ASAP; 1254 1255 __fill_isoc_descriptor(urb, skb->len, 1256 le16_to_cpu(data->isoc_tx_ep->wMaxPacketSize)); 1257 1258 skb->dev = (void *)hdev; 1259 1260 return urb; 1261 } 1262 1263 static int submit_tx_urb(struct hci_dev *hdev, struct urb *urb) 1264 { 1265 struct btusb_data *data = hci_get_drvdata(hdev); 1266 int err; 1267 1268 usb_anchor_urb(urb, &data->tx_anchor); 1269 1270 err = usb_submit_urb(urb, GFP_KERNEL); 1271 if (err < 0) { 1272 if (err != -EPERM && err != -ENODEV) 1273 BT_ERR("%s urb %p submission failed (%d)", 1274 hdev->name, urb, -err); 1275 kfree(urb->setup_packet); 1276 usb_unanchor_urb(urb); 1277 } else { 1278 usb_mark_last_busy(data->udev); 1279 } 1280 1281 usb_free_urb(urb); 1282 return err; 1283 } 1284 1285 static int submit_or_queue_tx_urb(struct hci_dev *hdev, struct urb *urb) 1286 { 1287 struct btusb_data *data = hci_get_drvdata(hdev); 1288 unsigned long flags; 1289 bool suspending; 1290 1291 spin_lock_irqsave(&data->txlock, flags); 1292 suspending = test_bit(BTUSB_SUSPENDING, &data->flags); 1293 if (!suspending) 1294 data->tx_in_flight++; 1295 spin_unlock_irqrestore(&data->txlock, flags); 1296 1297 if (!suspending) 1298 return submit_tx_urb(hdev, urb); 1299 1300 usb_anchor_urb(urb, &data->deferred); 1301 schedule_work(&data->waker); 1302 1303 usb_free_urb(urb); 1304 return 0; 1305 } 1306 1307 static int btusb_send_frame(struct hci_dev *hdev, struct sk_buff *skb) 1308 { 1309 struct urb *urb; 1310 1311 BT_DBG("%s", hdev->name); 1312 1313 switch (hci_skb_pkt_type(skb)) { 1314 case HCI_COMMAND_PKT: 1315 urb = alloc_ctrl_urb(hdev, skb); 1316 if (IS_ERR(urb)) 1317 return PTR_ERR(urb); 1318 1319 hdev->stat.cmd_tx++; 1320 return submit_or_queue_tx_urb(hdev, urb); 1321 1322 case HCI_ACLDATA_PKT: 1323 urb = alloc_bulk_urb(hdev, skb); 1324 if (IS_ERR(urb)) 1325 return PTR_ERR(urb); 1326 1327 hdev->stat.acl_tx++; 1328 return submit_or_queue_tx_urb(hdev, urb); 1329 1330 case HCI_SCODATA_PKT: 1331 if (hci_conn_num(hdev, SCO_LINK) < 1) 1332 return -ENODEV; 1333 1334 urb = alloc_isoc_urb(hdev, skb); 1335 if (IS_ERR(urb)) 1336 return PTR_ERR(urb); 1337 1338 hdev->stat.sco_tx++; 1339 return submit_tx_urb(hdev, urb); 1340 } 1341 1342 return -EILSEQ; 1343 } 1344 1345 static void btusb_notify(struct hci_dev *hdev, unsigned int evt) 1346 { 1347 struct btusb_data *data = hci_get_drvdata(hdev); 1348 1349 BT_DBG("%s evt %d", hdev->name, evt); 1350 1351 if (hci_conn_num(hdev, SCO_LINK) != data->sco_num) { 1352 data->sco_num = hci_conn_num(hdev, SCO_LINK); 1353 schedule_work(&data->work); 1354 } 1355 } 1356 1357 static inline int __set_isoc_interface(struct hci_dev *hdev, int altsetting) 1358 { 1359 struct btusb_data *data = hci_get_drvdata(hdev); 1360 struct usb_interface *intf = data->isoc; 1361 struct usb_endpoint_descriptor *ep_desc; 1362 int i, err; 1363 1364 if (!data->isoc) 1365 return -ENODEV; 1366 1367 err = usb_set_interface(data->udev, 1, altsetting); 1368 if (err < 0) { 1369 BT_ERR("%s setting interface failed (%d)", hdev->name, -err); 1370 return err; 1371 } 1372 1373 data->isoc_altsetting = altsetting; 1374 1375 data->isoc_tx_ep = NULL; 1376 data->isoc_rx_ep = NULL; 1377 1378 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) { 1379 ep_desc = &intf->cur_altsetting->endpoint[i].desc; 1380 1381 if (!data->isoc_tx_ep && usb_endpoint_is_isoc_out(ep_desc)) { 1382 data->isoc_tx_ep = ep_desc; 1383 continue; 1384 } 1385 1386 if (!data->isoc_rx_ep && usb_endpoint_is_isoc_in(ep_desc)) { 1387 data->isoc_rx_ep = ep_desc; 1388 continue; 1389 } 1390 } 1391 1392 if (!data->isoc_tx_ep || !data->isoc_rx_ep) { 1393 BT_ERR("%s invalid SCO descriptors", hdev->name); 1394 return -ENODEV; 1395 } 1396 1397 return 0; 1398 } 1399 1400 static void btusb_work(struct work_struct *work) 1401 { 1402 struct btusb_data *data = container_of(work, struct btusb_data, work); 1403 struct hci_dev *hdev = data->hdev; 1404 int new_alts; 1405 int err; 1406 1407 if (data->sco_num > 0) { 1408 if (!test_bit(BTUSB_DID_ISO_RESUME, &data->flags)) { 1409 err = usb_autopm_get_interface(data->isoc ? data->isoc : data->intf); 1410 if (err < 0) { 1411 clear_bit(BTUSB_ISOC_RUNNING, &data->flags); 1412 usb_kill_anchored_urbs(&data->isoc_anchor); 1413 return; 1414 } 1415 1416 set_bit(BTUSB_DID_ISO_RESUME, &data->flags); 1417 } 1418 1419 if (hdev->voice_setting & 0x0020) { 1420 static const int alts[3] = { 2, 4, 5 }; 1421 1422 new_alts = alts[data->sco_num - 1]; 1423 } else { 1424 new_alts = data->sco_num; 1425 } 1426 1427 if (data->isoc_altsetting != new_alts) { 1428 unsigned long flags; 1429 1430 clear_bit(BTUSB_ISOC_RUNNING, &data->flags); 1431 usb_kill_anchored_urbs(&data->isoc_anchor); 1432 1433 /* When isochronous alternate setting needs to be 1434 * changed, because SCO connection has been added 1435 * or removed, a packet fragment may be left in the 1436 * reassembling state. This could lead to wrongly 1437 * assembled fragments. 1438 * 1439 * Clear outstanding fragment when selecting a new 1440 * alternate setting. 1441 */ 1442 spin_lock_irqsave(&data->rxlock, flags); 1443 kfree_skb(data->sco_skb); 1444 data->sco_skb = NULL; 1445 spin_unlock_irqrestore(&data->rxlock, flags); 1446 1447 if (__set_isoc_interface(hdev, new_alts) < 0) 1448 return; 1449 } 1450 1451 if (!test_and_set_bit(BTUSB_ISOC_RUNNING, &data->flags)) { 1452 if (btusb_submit_isoc_urb(hdev, GFP_KERNEL) < 0) 1453 clear_bit(BTUSB_ISOC_RUNNING, &data->flags); 1454 else 1455 btusb_submit_isoc_urb(hdev, GFP_KERNEL); 1456 } 1457 } else { 1458 clear_bit(BTUSB_ISOC_RUNNING, &data->flags); 1459 usb_kill_anchored_urbs(&data->isoc_anchor); 1460 1461 __set_isoc_interface(hdev, 0); 1462 if (test_and_clear_bit(BTUSB_DID_ISO_RESUME, &data->flags)) 1463 usb_autopm_put_interface(data->isoc ? data->isoc : data->intf); 1464 } 1465 } 1466 1467 static void btusb_waker(struct work_struct *work) 1468 { 1469 struct btusb_data *data = container_of(work, struct btusb_data, waker); 1470 int err; 1471 1472 err = usb_autopm_get_interface(data->intf); 1473 if (err < 0) 1474 return; 1475 1476 usb_autopm_put_interface(data->intf); 1477 } 1478 1479 static int btusb_setup_bcm92035(struct hci_dev *hdev) 1480 { 1481 struct sk_buff *skb; 1482 u8 val = 0x00; 1483 1484 BT_DBG("%s", hdev->name); 1485 1486 skb = __hci_cmd_sync(hdev, 0xfc3b, 1, &val, HCI_INIT_TIMEOUT); 1487 if (IS_ERR(skb)) 1488 BT_ERR("BCM92035 command failed (%ld)", -PTR_ERR(skb)); 1489 else 1490 kfree_skb(skb); 1491 1492 return 0; 1493 } 1494 1495 static int btusb_setup_csr(struct hci_dev *hdev) 1496 { 1497 struct hci_rp_read_local_version *rp; 1498 struct sk_buff *skb; 1499 1500 BT_DBG("%s", hdev->name); 1501 1502 skb = __hci_cmd_sync(hdev, HCI_OP_READ_LOCAL_VERSION, 0, NULL, 1503 HCI_INIT_TIMEOUT); 1504 if (IS_ERR(skb)) { 1505 int err = PTR_ERR(skb); 1506 BT_ERR("%s: CSR: Local version failed (%d)", hdev->name, err); 1507 return err; 1508 } 1509 1510 if (skb->len != sizeof(struct hci_rp_read_local_version)) { 1511 BT_ERR("%s: CSR: Local version length mismatch", hdev->name); 1512 kfree_skb(skb); 1513 return -EIO; 1514 } 1515 1516 rp = (struct hci_rp_read_local_version *)skb->data; 1517 1518 /* Detect controllers which aren't real CSR ones. */ 1519 if (le16_to_cpu(rp->manufacturer) != 10 || 1520 le16_to_cpu(rp->lmp_subver) == 0x0c5c) { 1521 /* Clear the reset quirk since this is not an actual 1522 * early Bluetooth 1.1 device from CSR. 1523 */ 1524 clear_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks); 1525 1526 /* These fake CSR controllers have all a broken 1527 * stored link key handling and so just disable it. 1528 */ 1529 set_bit(HCI_QUIRK_BROKEN_STORED_LINK_KEY, &hdev->quirks); 1530 } 1531 1532 kfree_skb(skb); 1533 1534 return 0; 1535 } 1536 1537 static const struct firmware *btusb_setup_intel_get_fw(struct hci_dev *hdev, 1538 struct intel_version *ver) 1539 { 1540 const struct firmware *fw; 1541 char fwname[64]; 1542 int ret; 1543 1544 snprintf(fwname, sizeof(fwname), 1545 "intel/ibt-hw-%x.%x.%x-fw-%x.%x.%x.%x.%x.bseq", 1546 ver->hw_platform, ver->hw_variant, ver->hw_revision, 1547 ver->fw_variant, ver->fw_revision, ver->fw_build_num, 1548 ver->fw_build_ww, ver->fw_build_yy); 1549 1550 ret = request_firmware(&fw, fwname, &hdev->dev); 1551 if (ret < 0) { 1552 if (ret == -EINVAL) { 1553 BT_ERR("%s Intel firmware file request failed (%d)", 1554 hdev->name, ret); 1555 return NULL; 1556 } 1557 1558 BT_ERR("%s failed to open Intel firmware file: %s(%d)", 1559 hdev->name, fwname, ret); 1560 1561 /* If the correct firmware patch file is not found, use the 1562 * default firmware patch file instead 1563 */ 1564 snprintf(fwname, sizeof(fwname), "intel/ibt-hw-%x.%x.bseq", 1565 ver->hw_platform, ver->hw_variant); 1566 if (request_firmware(&fw, fwname, &hdev->dev) < 0) { 1567 BT_ERR("%s failed to open default Intel fw file: %s", 1568 hdev->name, fwname); 1569 return NULL; 1570 } 1571 } 1572 1573 BT_INFO("%s: Intel Bluetooth firmware file: %s", hdev->name, fwname); 1574 1575 return fw; 1576 } 1577 1578 static int btusb_setup_intel_patching(struct hci_dev *hdev, 1579 const struct firmware *fw, 1580 const u8 **fw_ptr, int *disable_patch) 1581 { 1582 struct sk_buff *skb; 1583 struct hci_command_hdr *cmd; 1584 const u8 *cmd_param; 1585 struct hci_event_hdr *evt = NULL; 1586 const u8 *evt_param = NULL; 1587 int remain = fw->size - (*fw_ptr - fw->data); 1588 1589 /* The first byte indicates the types of the patch command or event. 1590 * 0x01 means HCI command and 0x02 is HCI event. If the first bytes 1591 * in the current firmware buffer doesn't start with 0x01 or 1592 * the size of remain buffer is smaller than HCI command header, 1593 * the firmware file is corrupted and it should stop the patching 1594 * process. 1595 */ 1596 if (remain > HCI_COMMAND_HDR_SIZE && *fw_ptr[0] != 0x01) { 1597 BT_ERR("%s Intel fw corrupted: invalid cmd read", hdev->name); 1598 return -EINVAL; 1599 } 1600 (*fw_ptr)++; 1601 remain--; 1602 1603 cmd = (struct hci_command_hdr *)(*fw_ptr); 1604 *fw_ptr += sizeof(*cmd); 1605 remain -= sizeof(*cmd); 1606 1607 /* Ensure that the remain firmware data is long enough than the length 1608 * of command parameter. If not, the firmware file is corrupted. 1609 */ 1610 if (remain < cmd->plen) { 1611 BT_ERR("%s Intel fw corrupted: invalid cmd len", hdev->name); 1612 return -EFAULT; 1613 } 1614 1615 /* If there is a command that loads a patch in the firmware 1616 * file, then enable the patch upon success, otherwise just 1617 * disable the manufacturer mode, for example patch activation 1618 * is not required when the default firmware patch file is used 1619 * because there are no patch data to load. 1620 */ 1621 if (*disable_patch && le16_to_cpu(cmd->opcode) == 0xfc8e) 1622 *disable_patch = 0; 1623 1624 cmd_param = *fw_ptr; 1625 *fw_ptr += cmd->plen; 1626 remain -= cmd->plen; 1627 1628 /* This reads the expected events when the above command is sent to the 1629 * device. Some vendor commands expects more than one events, for 1630 * example command status event followed by vendor specific event. 1631 * For this case, it only keeps the last expected event. so the command 1632 * can be sent with __hci_cmd_sync_ev() which returns the sk_buff of 1633 * last expected event. 1634 */ 1635 while (remain > HCI_EVENT_HDR_SIZE && *fw_ptr[0] == 0x02) { 1636 (*fw_ptr)++; 1637 remain--; 1638 1639 evt = (struct hci_event_hdr *)(*fw_ptr); 1640 *fw_ptr += sizeof(*evt); 1641 remain -= sizeof(*evt); 1642 1643 if (remain < evt->plen) { 1644 BT_ERR("%s Intel fw corrupted: invalid evt len", 1645 hdev->name); 1646 return -EFAULT; 1647 } 1648 1649 evt_param = *fw_ptr; 1650 *fw_ptr += evt->plen; 1651 remain -= evt->plen; 1652 } 1653 1654 /* Every HCI commands in the firmware file has its correspond event. 1655 * If event is not found or remain is smaller than zero, the firmware 1656 * file is corrupted. 1657 */ 1658 if (!evt || !evt_param || remain < 0) { 1659 BT_ERR("%s Intel fw corrupted: invalid evt read", hdev->name); 1660 return -EFAULT; 1661 } 1662 1663 skb = __hci_cmd_sync_ev(hdev, le16_to_cpu(cmd->opcode), cmd->plen, 1664 cmd_param, evt->evt, HCI_INIT_TIMEOUT); 1665 if (IS_ERR(skb)) { 1666 BT_ERR("%s sending Intel patch command (0x%4.4x) failed (%ld)", 1667 hdev->name, cmd->opcode, PTR_ERR(skb)); 1668 return PTR_ERR(skb); 1669 } 1670 1671 /* It ensures that the returned event matches the event data read from 1672 * the firmware file. At fist, it checks the length and then 1673 * the contents of the event. 1674 */ 1675 if (skb->len != evt->plen) { 1676 BT_ERR("%s mismatch event length (opcode 0x%4.4x)", hdev->name, 1677 le16_to_cpu(cmd->opcode)); 1678 kfree_skb(skb); 1679 return -EFAULT; 1680 } 1681 1682 if (memcmp(skb->data, evt_param, evt->plen)) { 1683 BT_ERR("%s mismatch event parameter (opcode 0x%4.4x)", 1684 hdev->name, le16_to_cpu(cmd->opcode)); 1685 kfree_skb(skb); 1686 return -EFAULT; 1687 } 1688 kfree_skb(skb); 1689 1690 return 0; 1691 } 1692 1693 static int btusb_setup_intel(struct hci_dev *hdev) 1694 { 1695 struct sk_buff *skb; 1696 const struct firmware *fw; 1697 const u8 *fw_ptr; 1698 int disable_patch, err; 1699 struct intel_version ver; 1700 1701 BT_DBG("%s", hdev->name); 1702 1703 /* The controller has a bug with the first HCI command sent to it 1704 * returning number of completed commands as zero. This would stall the 1705 * command processing in the Bluetooth core. 1706 * 1707 * As a workaround, send HCI Reset command first which will reset the 1708 * number of completed commands and allow normal command processing 1709 * from now on. 1710 */ 1711 skb = __hci_cmd_sync(hdev, HCI_OP_RESET, 0, NULL, HCI_INIT_TIMEOUT); 1712 if (IS_ERR(skb)) { 1713 BT_ERR("%s sending initial HCI reset command failed (%ld)", 1714 hdev->name, PTR_ERR(skb)); 1715 return PTR_ERR(skb); 1716 } 1717 kfree_skb(skb); 1718 1719 /* Read Intel specific controller version first to allow selection of 1720 * which firmware file to load. 1721 * 1722 * The returned information are hardware variant and revision plus 1723 * firmware variant, revision and build number. 1724 */ 1725 err = btintel_read_version(hdev, &ver); 1726 if (err) 1727 return err; 1728 1729 BT_INFO("%s: read Intel version: %02x%02x%02x%02x%02x%02x%02x%02x%02x", 1730 hdev->name, ver.hw_platform, ver.hw_variant, ver.hw_revision, 1731 ver.fw_variant, ver.fw_revision, ver.fw_build_num, 1732 ver.fw_build_ww, ver.fw_build_yy, ver.fw_patch_num); 1733 1734 /* fw_patch_num indicates the version of patch the device currently 1735 * have. If there is no patch data in the device, it is always 0x00. 1736 * So, if it is other than 0x00, no need to patch the device again. 1737 */ 1738 if (ver.fw_patch_num) { 1739 BT_INFO("%s: Intel device is already patched. patch num: %02x", 1740 hdev->name, ver.fw_patch_num); 1741 goto complete; 1742 } 1743 1744 /* Opens the firmware patch file based on the firmware version read 1745 * from the controller. If it fails to open the matching firmware 1746 * patch file, it tries to open the default firmware patch file. 1747 * If no patch file is found, allow the device to operate without 1748 * a patch. 1749 */ 1750 fw = btusb_setup_intel_get_fw(hdev, &ver); 1751 if (!fw) 1752 goto complete; 1753 fw_ptr = fw->data; 1754 1755 /* Enable the manufacturer mode of the controller. 1756 * Only while this mode is enabled, the driver can download the 1757 * firmware patch data and configuration parameters. 1758 */ 1759 err = btintel_enter_mfg(hdev); 1760 if (err) { 1761 release_firmware(fw); 1762 return err; 1763 } 1764 1765 disable_patch = 1; 1766 1767 /* The firmware data file consists of list of Intel specific HCI 1768 * commands and its expected events. The first byte indicates the 1769 * type of the message, either HCI command or HCI event. 1770 * 1771 * It reads the command and its expected event from the firmware file, 1772 * and send to the controller. Once __hci_cmd_sync_ev() returns, 1773 * the returned event is compared with the event read from the firmware 1774 * file and it will continue until all the messages are downloaded to 1775 * the controller. 1776 * 1777 * Once the firmware patching is completed successfully, 1778 * the manufacturer mode is disabled with reset and activating the 1779 * downloaded patch. 1780 * 1781 * If the firmware patching fails, the manufacturer mode is 1782 * disabled with reset and deactivating the patch. 1783 * 1784 * If the default patch file is used, no reset is done when disabling 1785 * the manufacturer. 1786 */ 1787 while (fw->size > fw_ptr - fw->data) { 1788 int ret; 1789 1790 ret = btusb_setup_intel_patching(hdev, fw, &fw_ptr, 1791 &disable_patch); 1792 if (ret < 0) 1793 goto exit_mfg_deactivate; 1794 } 1795 1796 release_firmware(fw); 1797 1798 if (disable_patch) 1799 goto exit_mfg_disable; 1800 1801 /* Patching completed successfully and disable the manufacturer mode 1802 * with reset and activate the downloaded firmware patches. 1803 */ 1804 err = btintel_exit_mfg(hdev, true, true); 1805 if (err) 1806 return err; 1807 1808 BT_INFO("%s: Intel Bluetooth firmware patch completed and activated", 1809 hdev->name); 1810 1811 goto complete; 1812 1813 exit_mfg_disable: 1814 /* Disable the manufacturer mode without reset */ 1815 err = btintel_exit_mfg(hdev, false, false); 1816 if (err) 1817 return err; 1818 1819 BT_INFO("%s: Intel Bluetooth firmware patch completed", hdev->name); 1820 1821 goto complete; 1822 1823 exit_mfg_deactivate: 1824 release_firmware(fw); 1825 1826 /* Patching failed. Disable the manufacturer mode with reset and 1827 * deactivate the downloaded firmware patches. 1828 */ 1829 err = btintel_exit_mfg(hdev, true, false); 1830 if (err) 1831 return err; 1832 1833 BT_INFO("%s: Intel Bluetooth firmware patch completed and deactivated", 1834 hdev->name); 1835 1836 complete: 1837 /* Set the event mask for Intel specific vendor events. This enables 1838 * a few extra events that are useful during general operation. 1839 */ 1840 btintel_set_event_mask_mfg(hdev, false); 1841 1842 btintel_check_bdaddr(hdev); 1843 return 0; 1844 } 1845 1846 static int inject_cmd_complete(struct hci_dev *hdev, __u16 opcode) 1847 { 1848 struct sk_buff *skb; 1849 struct hci_event_hdr *hdr; 1850 struct hci_ev_cmd_complete *evt; 1851 1852 skb = bt_skb_alloc(sizeof(*hdr) + sizeof(*evt) + 1, GFP_ATOMIC); 1853 if (!skb) 1854 return -ENOMEM; 1855 1856 hdr = skb_put(skb, sizeof(*hdr)); 1857 hdr->evt = HCI_EV_CMD_COMPLETE; 1858 hdr->plen = sizeof(*evt) + 1; 1859 1860 evt = skb_put(skb, sizeof(*evt)); 1861 evt->ncmd = 0x01; 1862 evt->opcode = cpu_to_le16(opcode); 1863 1864 skb_put_u8(skb, 0x00); 1865 1866 hci_skb_pkt_type(skb) = HCI_EVENT_PKT; 1867 1868 return hci_recv_frame(hdev, skb); 1869 } 1870 1871 static int btusb_recv_bulk_intel(struct btusb_data *data, void *buffer, 1872 int count) 1873 { 1874 /* When the device is in bootloader mode, then it can send 1875 * events via the bulk endpoint. These events are treated the 1876 * same way as the ones received from the interrupt endpoint. 1877 */ 1878 if (test_bit(BTUSB_BOOTLOADER, &data->flags)) 1879 return btusb_recv_intr(data, buffer, count); 1880 1881 return btusb_recv_bulk(data, buffer, count); 1882 } 1883 1884 static void btusb_intel_bootup(struct btusb_data *data, const void *ptr, 1885 unsigned int len) 1886 { 1887 const struct intel_bootup *evt = ptr; 1888 1889 if (len != sizeof(*evt)) 1890 return; 1891 1892 if (test_and_clear_bit(BTUSB_BOOTING, &data->flags)) { 1893 smp_mb__after_atomic(); 1894 wake_up_bit(&data->flags, BTUSB_BOOTING); 1895 } 1896 } 1897 1898 static void btusb_intel_secure_send_result(struct btusb_data *data, 1899 const void *ptr, unsigned int len) 1900 { 1901 const struct intel_secure_send_result *evt = ptr; 1902 1903 if (len != sizeof(*evt)) 1904 return; 1905 1906 if (evt->result) 1907 set_bit(BTUSB_FIRMWARE_FAILED, &data->flags); 1908 1909 if (test_and_clear_bit(BTUSB_DOWNLOADING, &data->flags) && 1910 test_bit(BTUSB_FIRMWARE_LOADED, &data->flags)) { 1911 smp_mb__after_atomic(); 1912 wake_up_bit(&data->flags, BTUSB_DOWNLOADING); 1913 } 1914 } 1915 1916 static int btusb_recv_event_intel(struct hci_dev *hdev, struct sk_buff *skb) 1917 { 1918 struct btusb_data *data = hci_get_drvdata(hdev); 1919 1920 if (test_bit(BTUSB_BOOTLOADER, &data->flags)) { 1921 struct hci_event_hdr *hdr = (void *)skb->data; 1922 1923 if (skb->len > HCI_EVENT_HDR_SIZE && hdr->evt == 0xff && 1924 hdr->plen > 0) { 1925 const void *ptr = skb->data + HCI_EVENT_HDR_SIZE + 1; 1926 unsigned int len = skb->len - HCI_EVENT_HDR_SIZE - 1; 1927 1928 switch (skb->data[2]) { 1929 case 0x02: 1930 /* When switching to the operational firmware 1931 * the device sends a vendor specific event 1932 * indicating that the bootup completed. 1933 */ 1934 btusb_intel_bootup(data, ptr, len); 1935 break; 1936 case 0x06: 1937 /* When the firmware loading completes the 1938 * device sends out a vendor specific event 1939 * indicating the result of the firmware 1940 * loading. 1941 */ 1942 btusb_intel_secure_send_result(data, ptr, len); 1943 break; 1944 } 1945 } 1946 } 1947 1948 return hci_recv_frame(hdev, skb); 1949 } 1950 1951 static int btusb_send_frame_intel(struct hci_dev *hdev, struct sk_buff *skb) 1952 { 1953 struct btusb_data *data = hci_get_drvdata(hdev); 1954 struct urb *urb; 1955 1956 BT_DBG("%s", hdev->name); 1957 1958 switch (hci_skb_pkt_type(skb)) { 1959 case HCI_COMMAND_PKT: 1960 if (test_bit(BTUSB_BOOTLOADER, &data->flags)) { 1961 struct hci_command_hdr *cmd = (void *)skb->data; 1962 __u16 opcode = le16_to_cpu(cmd->opcode); 1963 1964 /* When in bootloader mode and the command 0xfc09 1965 * is received, it needs to be send down the 1966 * bulk endpoint. So allocate a bulk URB instead. 1967 */ 1968 if (opcode == 0xfc09) 1969 urb = alloc_bulk_urb(hdev, skb); 1970 else 1971 urb = alloc_ctrl_urb(hdev, skb); 1972 1973 /* When the 0xfc01 command is issued to boot into 1974 * the operational firmware, it will actually not 1975 * send a command complete event. To keep the flow 1976 * control working inject that event here. 1977 */ 1978 if (opcode == 0xfc01) 1979 inject_cmd_complete(hdev, opcode); 1980 } else { 1981 urb = alloc_ctrl_urb(hdev, skb); 1982 } 1983 if (IS_ERR(urb)) 1984 return PTR_ERR(urb); 1985 1986 hdev->stat.cmd_tx++; 1987 return submit_or_queue_tx_urb(hdev, urb); 1988 1989 case HCI_ACLDATA_PKT: 1990 urb = alloc_bulk_urb(hdev, skb); 1991 if (IS_ERR(urb)) 1992 return PTR_ERR(urb); 1993 1994 hdev->stat.acl_tx++; 1995 return submit_or_queue_tx_urb(hdev, urb); 1996 1997 case HCI_SCODATA_PKT: 1998 if (hci_conn_num(hdev, SCO_LINK) < 1) 1999 return -ENODEV; 2000 2001 urb = alloc_isoc_urb(hdev, skb); 2002 if (IS_ERR(urb)) 2003 return PTR_ERR(urb); 2004 2005 hdev->stat.sco_tx++; 2006 return submit_tx_urb(hdev, urb); 2007 } 2008 2009 return -EILSEQ; 2010 } 2011 2012 static int btusb_setup_intel_new(struct hci_dev *hdev) 2013 { 2014 static const u8 reset_param[] = { 0x00, 0x01, 0x00, 0x01, 2015 0x00, 0x08, 0x04, 0x00 }; 2016 struct btusb_data *data = hci_get_drvdata(hdev); 2017 struct sk_buff *skb; 2018 struct intel_version ver; 2019 struct intel_boot_params *params; 2020 const struct firmware *fw; 2021 const u8 *fw_ptr; 2022 u32 frag_len; 2023 char fwname[64]; 2024 ktime_t calltime, delta, rettime; 2025 unsigned long long duration; 2026 int err; 2027 2028 BT_DBG("%s", hdev->name); 2029 2030 calltime = ktime_get(); 2031 2032 /* Read the Intel version information to determine if the device 2033 * is in bootloader mode or if it already has operational firmware 2034 * loaded. 2035 */ 2036 err = btintel_read_version(hdev, &ver); 2037 if (err) 2038 return err; 2039 2040 /* The hardware platform number has a fixed value of 0x37 and 2041 * for now only accept this single value. 2042 */ 2043 if (ver.hw_platform != 0x37) { 2044 BT_ERR("%s: Unsupported Intel hardware platform (%u)", 2045 hdev->name, ver.hw_platform); 2046 return -EINVAL; 2047 } 2048 2049 /* Check for supported iBT hardware variants of this firmware 2050 * loading method. 2051 * 2052 * This check has been put in place to ensure correct forward 2053 * compatibility options when newer hardware variants come along. 2054 */ 2055 switch (ver.hw_variant) { 2056 case 0x0b: /* SfP */ 2057 case 0x0c: /* WsP */ 2058 case 0x11: /* JfP */ 2059 case 0x12: /* ThP */ 2060 break; 2061 default: 2062 BT_ERR("%s: Unsupported Intel hardware variant (%u)", 2063 hdev->name, ver.hw_variant); 2064 return -EINVAL; 2065 } 2066 2067 btintel_version_info(hdev, &ver); 2068 2069 /* The firmware variant determines if the device is in bootloader 2070 * mode or is running operational firmware. The value 0x06 identifies 2071 * the bootloader and the value 0x23 identifies the operational 2072 * firmware. 2073 * 2074 * When the operational firmware is already present, then only 2075 * the check for valid Bluetooth device address is needed. This 2076 * determines if the device will be added as configured or 2077 * unconfigured controller. 2078 * 2079 * It is not possible to use the Secure Boot Parameters in this 2080 * case since that command is only available in bootloader mode. 2081 */ 2082 if (ver.fw_variant == 0x23) { 2083 clear_bit(BTUSB_BOOTLOADER, &data->flags); 2084 btintel_check_bdaddr(hdev); 2085 return 0; 2086 } 2087 2088 /* If the device is not in bootloader mode, then the only possible 2089 * choice is to return an error and abort the device initialization. 2090 */ 2091 if (ver.fw_variant != 0x06) { 2092 BT_ERR("%s: Unsupported Intel firmware variant (%u)", 2093 hdev->name, ver.fw_variant); 2094 return -ENODEV; 2095 } 2096 2097 /* Read the secure boot parameters to identify the operating 2098 * details of the bootloader. 2099 */ 2100 skb = __hci_cmd_sync(hdev, 0xfc0d, 0, NULL, HCI_INIT_TIMEOUT); 2101 if (IS_ERR(skb)) { 2102 BT_ERR("%s: Reading Intel boot parameters failed (%ld)", 2103 hdev->name, PTR_ERR(skb)); 2104 return PTR_ERR(skb); 2105 } 2106 2107 if (skb->len != sizeof(*params)) { 2108 BT_ERR("%s: Intel boot parameters size mismatch", hdev->name); 2109 kfree_skb(skb); 2110 return -EILSEQ; 2111 } 2112 2113 params = (struct intel_boot_params *)skb->data; 2114 2115 BT_INFO("%s: Device revision is %u", hdev->name, 2116 le16_to_cpu(params->dev_revid)); 2117 2118 BT_INFO("%s: Secure boot is %s", hdev->name, 2119 params->secure_boot ? "enabled" : "disabled"); 2120 2121 BT_INFO("%s: OTP lock is %s", hdev->name, 2122 params->otp_lock ? "enabled" : "disabled"); 2123 2124 BT_INFO("%s: API lock is %s", hdev->name, 2125 params->api_lock ? "enabled" : "disabled"); 2126 2127 BT_INFO("%s: Debug lock is %s", hdev->name, 2128 params->debug_lock ? "enabled" : "disabled"); 2129 2130 BT_INFO("%s: Minimum firmware build %u week %u %u", hdev->name, 2131 params->min_fw_build_nn, params->min_fw_build_cw, 2132 2000 + params->min_fw_build_yy); 2133 2134 /* It is required that every single firmware fragment is acknowledged 2135 * with a command complete event. If the boot parameters indicate 2136 * that this bootloader does not send them, then abort the setup. 2137 */ 2138 if (params->limited_cce != 0x00) { 2139 BT_ERR("%s: Unsupported Intel firmware loading method (%u)", 2140 hdev->name, params->limited_cce); 2141 kfree_skb(skb); 2142 return -EINVAL; 2143 } 2144 2145 /* If the OTP has no valid Bluetooth device address, then there will 2146 * also be no valid address for the operational firmware. 2147 */ 2148 if (!bacmp(¶ms->otp_bdaddr, BDADDR_ANY)) { 2149 BT_INFO("%s: No device address configured", hdev->name); 2150 set_bit(HCI_QUIRK_INVALID_BDADDR, &hdev->quirks); 2151 } 2152 2153 /* With this Intel bootloader only the hardware variant and device 2154 * revision information are used to select the right firmware. 2155 * 2156 * The firmware filename is ibt-<hw_variant>-<dev_revid>.sfi. 2157 * 2158 * Currently the supported hardware variants are: 2159 * 11 (0x0b) for iBT3.0 (LnP/SfP) 2160 * 12 (0x0c) for iBT3.5 (WsP) 2161 * 17 (0x11) for iBT3.5 (JfP) 2162 * 18 (0x12) for iBT3.5 (ThP) 2163 */ 2164 snprintf(fwname, sizeof(fwname), "intel/ibt-%u-%u.sfi", 2165 le16_to_cpu(ver.hw_variant), 2166 le16_to_cpu(params->dev_revid)); 2167 2168 err = request_firmware(&fw, fwname, &hdev->dev); 2169 if (err < 0) { 2170 BT_ERR("%s: Failed to load Intel firmware file (%d)", 2171 hdev->name, err); 2172 kfree_skb(skb); 2173 return err; 2174 } 2175 2176 BT_INFO("%s: Found device firmware: %s", hdev->name, fwname); 2177 2178 /* Save the DDC file name for later use to apply once the firmware 2179 * downloading is done. 2180 */ 2181 snprintf(fwname, sizeof(fwname), "intel/ibt-%u-%u.ddc", 2182 le16_to_cpu(ver.hw_variant), 2183 le16_to_cpu(params->dev_revid)); 2184 2185 kfree_skb(skb); 2186 2187 if (fw->size < 644) { 2188 BT_ERR("%s: Invalid size of firmware file (%zu)", 2189 hdev->name, fw->size); 2190 err = -EBADF; 2191 goto done; 2192 } 2193 2194 set_bit(BTUSB_DOWNLOADING, &data->flags); 2195 2196 /* Start the firmware download transaction with the Init fragment 2197 * represented by the 128 bytes of CSS header. 2198 */ 2199 err = btintel_secure_send(hdev, 0x00, 128, fw->data); 2200 if (err < 0) { 2201 BT_ERR("%s: Failed to send firmware header (%d)", 2202 hdev->name, err); 2203 goto done; 2204 } 2205 2206 /* Send the 256 bytes of public key information from the firmware 2207 * as the PKey fragment. 2208 */ 2209 err = btintel_secure_send(hdev, 0x03, 256, fw->data + 128); 2210 if (err < 0) { 2211 BT_ERR("%s: Failed to send firmware public key (%d)", 2212 hdev->name, err); 2213 goto done; 2214 } 2215 2216 /* Send the 256 bytes of signature information from the firmware 2217 * as the Sign fragment. 2218 */ 2219 err = btintel_secure_send(hdev, 0x02, 256, fw->data + 388); 2220 if (err < 0) { 2221 BT_ERR("%s: Failed to send firmware signature (%d)", 2222 hdev->name, err); 2223 goto done; 2224 } 2225 2226 fw_ptr = fw->data + 644; 2227 frag_len = 0; 2228 2229 while (fw_ptr - fw->data < fw->size) { 2230 struct hci_command_hdr *cmd = (void *)(fw_ptr + frag_len); 2231 2232 frag_len += sizeof(*cmd) + cmd->plen; 2233 2234 /* The parameter length of the secure send command requires 2235 * a 4 byte alignment. It happens so that the firmware file 2236 * contains proper Intel_NOP commands to align the fragments 2237 * as needed. 2238 * 2239 * Send set of commands with 4 byte alignment from the 2240 * firmware data buffer as a single Data fragement. 2241 */ 2242 if (!(frag_len % 4)) { 2243 err = btintel_secure_send(hdev, 0x01, frag_len, fw_ptr); 2244 if (err < 0) { 2245 BT_ERR("%s: Failed to send firmware data (%d)", 2246 hdev->name, err); 2247 goto done; 2248 } 2249 2250 fw_ptr += frag_len; 2251 frag_len = 0; 2252 } 2253 } 2254 2255 set_bit(BTUSB_FIRMWARE_LOADED, &data->flags); 2256 2257 BT_INFO("%s: Waiting for firmware download to complete", hdev->name); 2258 2259 /* Before switching the device into operational mode and with that 2260 * booting the loaded firmware, wait for the bootloader notification 2261 * that all fragments have been successfully received. 2262 * 2263 * When the event processing receives the notification, then the 2264 * BTUSB_DOWNLOADING flag will be cleared. 2265 * 2266 * The firmware loading should not take longer than 5 seconds 2267 * and thus just timeout if that happens and fail the setup 2268 * of this device. 2269 */ 2270 err = wait_on_bit_timeout(&data->flags, BTUSB_DOWNLOADING, 2271 TASK_INTERRUPTIBLE, 2272 msecs_to_jiffies(5000)); 2273 if (err == -EINTR) { 2274 BT_ERR("%s: Firmware loading interrupted", hdev->name); 2275 goto done; 2276 } 2277 2278 if (err) { 2279 BT_ERR("%s: Firmware loading timeout", hdev->name); 2280 err = -ETIMEDOUT; 2281 goto done; 2282 } 2283 2284 if (test_bit(BTUSB_FIRMWARE_FAILED, &data->flags)) { 2285 BT_ERR("%s: Firmware loading failed", hdev->name); 2286 err = -ENOEXEC; 2287 goto done; 2288 } 2289 2290 rettime = ktime_get(); 2291 delta = ktime_sub(rettime, calltime); 2292 duration = (unsigned long long) ktime_to_ns(delta) >> 10; 2293 2294 BT_INFO("%s: Firmware loaded in %llu usecs", hdev->name, duration); 2295 2296 done: 2297 release_firmware(fw); 2298 2299 if (err < 0) 2300 return err; 2301 2302 calltime = ktime_get(); 2303 2304 set_bit(BTUSB_BOOTING, &data->flags); 2305 2306 skb = __hci_cmd_sync(hdev, 0xfc01, sizeof(reset_param), reset_param, 2307 HCI_INIT_TIMEOUT); 2308 if (IS_ERR(skb)) 2309 return PTR_ERR(skb); 2310 2311 kfree_skb(skb); 2312 2313 /* The bootloader will not indicate when the device is ready. This 2314 * is done by the operational firmware sending bootup notification. 2315 * 2316 * Booting into operational firmware should not take longer than 2317 * 1 second. However if that happens, then just fail the setup 2318 * since something went wrong. 2319 */ 2320 BT_INFO("%s: Waiting for device to boot", hdev->name); 2321 2322 err = wait_on_bit_timeout(&data->flags, BTUSB_BOOTING, 2323 TASK_INTERRUPTIBLE, 2324 msecs_to_jiffies(1000)); 2325 2326 if (err == -EINTR) { 2327 BT_ERR("%s: Device boot interrupted", hdev->name); 2328 return -EINTR; 2329 } 2330 2331 if (err) { 2332 BT_ERR("%s: Device boot timeout", hdev->name); 2333 return -ETIMEDOUT; 2334 } 2335 2336 rettime = ktime_get(); 2337 delta = ktime_sub(rettime, calltime); 2338 duration = (unsigned long long) ktime_to_ns(delta) >> 10; 2339 2340 BT_INFO("%s: Device booted in %llu usecs", hdev->name, duration); 2341 2342 clear_bit(BTUSB_BOOTLOADER, &data->flags); 2343 2344 /* Once the device is running in operational mode, it needs to apply 2345 * the device configuration (DDC) parameters. 2346 * 2347 * The device can work without DDC parameters, so even if it fails 2348 * to load the file, no need to fail the setup. 2349 */ 2350 btintel_load_ddc_config(hdev, fwname); 2351 2352 /* Set the event mask for Intel specific vendor events. This enables 2353 * a few extra events that are useful during general operation. It 2354 * does not enable any debugging related events. 2355 * 2356 * The device will function correctly without these events enabled 2357 * and thus no need to fail the setup. 2358 */ 2359 btintel_set_event_mask(hdev, false); 2360 2361 return 0; 2362 } 2363 2364 static int btusb_shutdown_intel(struct hci_dev *hdev) 2365 { 2366 struct sk_buff *skb; 2367 long ret; 2368 2369 /* Some platforms have an issue with BT LED when the interface is 2370 * down or BT radio is turned off, which takes 5 seconds to BT LED 2371 * goes off. This command turns off the BT LED immediately. 2372 */ 2373 skb = __hci_cmd_sync(hdev, 0xfc3f, 0, NULL, HCI_INIT_TIMEOUT); 2374 if (IS_ERR(skb)) { 2375 ret = PTR_ERR(skb); 2376 BT_ERR("%s: turning off Intel device LED failed (%ld)", 2377 hdev->name, ret); 2378 return ret; 2379 } 2380 kfree_skb(skb); 2381 2382 return 0; 2383 } 2384 2385 #ifdef CONFIG_PM 2386 /* Configure an out-of-band gpio as wake-up pin, if specified in device tree */ 2387 static int marvell_config_oob_wake(struct hci_dev *hdev) 2388 { 2389 struct sk_buff *skb; 2390 struct btusb_data *data = hci_get_drvdata(hdev); 2391 struct device *dev = &data->udev->dev; 2392 u16 pin, gap, opcode; 2393 int ret; 2394 u8 cmd[5]; 2395 2396 /* Move on if no wakeup pin specified */ 2397 if (of_property_read_u16(dev->of_node, "marvell,wakeup-pin", &pin) || 2398 of_property_read_u16(dev->of_node, "marvell,wakeup-gap-ms", &gap)) 2399 return 0; 2400 2401 /* Vendor specific command to configure a GPIO as wake-up pin */ 2402 opcode = hci_opcode_pack(0x3F, 0x59); 2403 cmd[0] = opcode & 0xFF; 2404 cmd[1] = opcode >> 8; 2405 cmd[2] = 2; /* length of parameters that follow */ 2406 cmd[3] = pin; 2407 cmd[4] = gap; /* time in ms, for which wakeup pin should be asserted */ 2408 2409 skb = bt_skb_alloc(sizeof(cmd), GFP_KERNEL); 2410 if (!skb) { 2411 bt_dev_err(hdev, "%s: No memory\n", __func__); 2412 return -ENOMEM; 2413 } 2414 2415 skb_put_data(skb, cmd, sizeof(cmd)); 2416 hci_skb_pkt_type(skb) = HCI_COMMAND_PKT; 2417 2418 ret = btusb_send_frame(hdev, skb); 2419 if (ret) { 2420 bt_dev_err(hdev, "%s: configuration failed\n", __func__); 2421 kfree_skb(skb); 2422 return ret; 2423 } 2424 2425 return 0; 2426 } 2427 #endif 2428 2429 static int btusb_set_bdaddr_marvell(struct hci_dev *hdev, 2430 const bdaddr_t *bdaddr) 2431 { 2432 struct sk_buff *skb; 2433 u8 buf[8]; 2434 long ret; 2435 2436 buf[0] = 0xfe; 2437 buf[1] = sizeof(bdaddr_t); 2438 memcpy(buf + 2, bdaddr, sizeof(bdaddr_t)); 2439 2440 skb = __hci_cmd_sync(hdev, 0xfc22, sizeof(buf), buf, HCI_INIT_TIMEOUT); 2441 if (IS_ERR(skb)) { 2442 ret = PTR_ERR(skb); 2443 BT_ERR("%s: changing Marvell device address failed (%ld)", 2444 hdev->name, ret); 2445 return ret; 2446 } 2447 kfree_skb(skb); 2448 2449 return 0; 2450 } 2451 2452 static int btusb_set_bdaddr_ath3012(struct hci_dev *hdev, 2453 const bdaddr_t *bdaddr) 2454 { 2455 struct sk_buff *skb; 2456 u8 buf[10]; 2457 long ret; 2458 2459 buf[0] = 0x01; 2460 buf[1] = 0x01; 2461 buf[2] = 0x00; 2462 buf[3] = sizeof(bdaddr_t); 2463 memcpy(buf + 4, bdaddr, sizeof(bdaddr_t)); 2464 2465 skb = __hci_cmd_sync(hdev, 0xfc0b, sizeof(buf), buf, HCI_INIT_TIMEOUT); 2466 if (IS_ERR(skb)) { 2467 ret = PTR_ERR(skb); 2468 BT_ERR("%s: Change address command failed (%ld)", 2469 hdev->name, ret); 2470 return ret; 2471 } 2472 kfree_skb(skb); 2473 2474 return 0; 2475 } 2476 2477 #define QCA_DFU_PACKET_LEN 4096 2478 2479 #define QCA_GET_TARGET_VERSION 0x09 2480 #define QCA_CHECK_STATUS 0x05 2481 #define QCA_DFU_DOWNLOAD 0x01 2482 2483 #define QCA_SYSCFG_UPDATED 0x40 2484 #define QCA_PATCH_UPDATED 0x80 2485 #define QCA_DFU_TIMEOUT 3000 2486 2487 struct qca_version { 2488 __le32 rom_version; 2489 __le32 patch_version; 2490 __le32 ram_version; 2491 __le32 ref_clock; 2492 __u8 reserved[4]; 2493 } __packed; 2494 2495 struct qca_rampatch_version { 2496 __le16 rom_version; 2497 __le16 patch_version; 2498 } __packed; 2499 2500 struct qca_device_info { 2501 u32 rom_version; 2502 u8 rampatch_hdr; /* length of header in rampatch */ 2503 u8 nvm_hdr; /* length of header in NVM */ 2504 u8 ver_offset; /* offset of version structure in rampatch */ 2505 }; 2506 2507 static const struct qca_device_info qca_devices_table[] = { 2508 { 0x00000100, 20, 4, 10 }, /* Rome 1.0 */ 2509 { 0x00000101, 20, 4, 10 }, /* Rome 1.1 */ 2510 { 0x00000200, 28, 4, 18 }, /* Rome 2.0 */ 2511 { 0x00000201, 28, 4, 18 }, /* Rome 2.1 */ 2512 { 0x00000300, 28, 4, 18 }, /* Rome 3.0 */ 2513 { 0x00000302, 28, 4, 18 }, /* Rome 3.2 */ 2514 }; 2515 2516 static int btusb_qca_send_vendor_req(struct hci_dev *hdev, u8 request, 2517 void *data, u16 size) 2518 { 2519 struct btusb_data *btdata = hci_get_drvdata(hdev); 2520 struct usb_device *udev = btdata->udev; 2521 int pipe, err; 2522 u8 *buf; 2523 2524 buf = kmalloc(size, GFP_KERNEL); 2525 if (!buf) 2526 return -ENOMEM; 2527 2528 /* Found some of USB hosts have IOT issues with ours so that we should 2529 * not wait until HCI layer is ready. 2530 */ 2531 pipe = usb_rcvctrlpipe(udev, 0); 2532 err = usb_control_msg(udev, pipe, request, USB_TYPE_VENDOR | USB_DIR_IN, 2533 0, 0, buf, size, USB_CTRL_SET_TIMEOUT); 2534 if (err < 0) { 2535 BT_ERR("%s: Failed to access otp area (%d)", hdev->name, err); 2536 goto done; 2537 } 2538 2539 memcpy(data, buf, size); 2540 2541 done: 2542 kfree(buf); 2543 2544 return err; 2545 } 2546 2547 static int btusb_setup_qca_download_fw(struct hci_dev *hdev, 2548 const struct firmware *firmware, 2549 size_t hdr_size) 2550 { 2551 struct btusb_data *btdata = hci_get_drvdata(hdev); 2552 struct usb_device *udev = btdata->udev; 2553 size_t count, size, sent = 0; 2554 int pipe, len, err; 2555 u8 *buf; 2556 2557 buf = kmalloc(QCA_DFU_PACKET_LEN, GFP_KERNEL); 2558 if (!buf) 2559 return -ENOMEM; 2560 2561 count = firmware->size; 2562 2563 size = min_t(size_t, count, hdr_size); 2564 memcpy(buf, firmware->data, size); 2565 2566 /* USB patches should go down to controller through USB path 2567 * because binary format fits to go down through USB channel. 2568 * USB control path is for patching headers and USB bulk is for 2569 * patch body. 2570 */ 2571 pipe = usb_sndctrlpipe(udev, 0); 2572 err = usb_control_msg(udev, pipe, QCA_DFU_DOWNLOAD, USB_TYPE_VENDOR, 2573 0, 0, buf, size, USB_CTRL_SET_TIMEOUT); 2574 if (err < 0) { 2575 BT_ERR("%s: Failed to send headers (%d)", hdev->name, err); 2576 goto done; 2577 } 2578 2579 sent += size; 2580 count -= size; 2581 2582 while (count) { 2583 size = min_t(size_t, count, QCA_DFU_PACKET_LEN); 2584 2585 memcpy(buf, firmware->data + sent, size); 2586 2587 pipe = usb_sndbulkpipe(udev, 0x02); 2588 err = usb_bulk_msg(udev, pipe, buf, size, &len, 2589 QCA_DFU_TIMEOUT); 2590 if (err < 0) { 2591 BT_ERR("%s: Failed to send body at %zd of %zd (%d)", 2592 hdev->name, sent, firmware->size, err); 2593 break; 2594 } 2595 2596 if (size != len) { 2597 BT_ERR("%s: Failed to get bulk buffer", hdev->name); 2598 err = -EILSEQ; 2599 break; 2600 } 2601 2602 sent += size; 2603 count -= size; 2604 } 2605 2606 done: 2607 kfree(buf); 2608 return err; 2609 } 2610 2611 static int btusb_setup_qca_load_rampatch(struct hci_dev *hdev, 2612 struct qca_version *ver, 2613 const struct qca_device_info *info) 2614 { 2615 struct qca_rampatch_version *rver; 2616 const struct firmware *fw; 2617 u32 ver_rom, ver_patch; 2618 u16 rver_rom, rver_patch; 2619 char fwname[64]; 2620 int err; 2621 2622 ver_rom = le32_to_cpu(ver->rom_version); 2623 ver_patch = le32_to_cpu(ver->patch_version); 2624 2625 snprintf(fwname, sizeof(fwname), "qca/rampatch_usb_%08x.bin", ver_rom); 2626 2627 err = request_firmware(&fw, fwname, &hdev->dev); 2628 if (err) { 2629 BT_ERR("%s: failed to request rampatch file: %s (%d)", 2630 hdev->name, fwname, err); 2631 return err; 2632 } 2633 2634 BT_INFO("%s: using rampatch file: %s", hdev->name, fwname); 2635 2636 rver = (struct qca_rampatch_version *)(fw->data + info->ver_offset); 2637 rver_rom = le16_to_cpu(rver->rom_version); 2638 rver_patch = le16_to_cpu(rver->patch_version); 2639 2640 BT_INFO("%s: QCA: patch rome 0x%x build 0x%x, firmware rome 0x%x " 2641 "build 0x%x", hdev->name, rver_rom, rver_patch, ver_rom, 2642 ver_patch); 2643 2644 if (rver_rom != ver_rom || rver_patch <= ver_patch) { 2645 BT_ERR("%s: rampatch file version did not match with firmware", 2646 hdev->name); 2647 err = -EINVAL; 2648 goto done; 2649 } 2650 2651 err = btusb_setup_qca_download_fw(hdev, fw, info->rampatch_hdr); 2652 2653 done: 2654 release_firmware(fw); 2655 2656 return err; 2657 } 2658 2659 static int btusb_setup_qca_load_nvm(struct hci_dev *hdev, 2660 struct qca_version *ver, 2661 const struct qca_device_info *info) 2662 { 2663 const struct firmware *fw; 2664 char fwname[64]; 2665 int err; 2666 2667 snprintf(fwname, sizeof(fwname), "qca/nvm_usb_%08x.bin", 2668 le32_to_cpu(ver->rom_version)); 2669 2670 err = request_firmware(&fw, fwname, &hdev->dev); 2671 if (err) { 2672 BT_ERR("%s: failed to request NVM file: %s (%d)", 2673 hdev->name, fwname, err); 2674 return err; 2675 } 2676 2677 BT_INFO("%s: using NVM file: %s", hdev->name, fwname); 2678 2679 err = btusb_setup_qca_download_fw(hdev, fw, info->nvm_hdr); 2680 2681 release_firmware(fw); 2682 2683 return err; 2684 } 2685 2686 static int btusb_setup_qca(struct hci_dev *hdev) 2687 { 2688 const struct qca_device_info *info = NULL; 2689 struct qca_version ver; 2690 u32 ver_rom; 2691 u8 status; 2692 int i, err; 2693 2694 err = btusb_qca_send_vendor_req(hdev, QCA_GET_TARGET_VERSION, &ver, 2695 sizeof(ver)); 2696 if (err < 0) 2697 return err; 2698 2699 ver_rom = le32_to_cpu(ver.rom_version); 2700 for (i = 0; i < ARRAY_SIZE(qca_devices_table); i++) { 2701 if (ver_rom == qca_devices_table[i].rom_version) 2702 info = &qca_devices_table[i]; 2703 } 2704 if (!info) { 2705 BT_ERR("%s: don't support firmware rome 0x%x", hdev->name, 2706 ver_rom); 2707 return -ENODEV; 2708 } 2709 2710 err = btusb_qca_send_vendor_req(hdev, QCA_CHECK_STATUS, &status, 2711 sizeof(status)); 2712 if (err < 0) 2713 return err; 2714 2715 if (!(status & QCA_PATCH_UPDATED)) { 2716 err = btusb_setup_qca_load_rampatch(hdev, &ver, info); 2717 if (err < 0) 2718 return err; 2719 } 2720 2721 if (!(status & QCA_SYSCFG_UPDATED)) { 2722 err = btusb_setup_qca_load_nvm(hdev, &ver, info); 2723 if (err < 0) 2724 return err; 2725 } 2726 2727 return 0; 2728 } 2729 2730 #ifdef CONFIG_BT_HCIBTUSB_BCM 2731 static inline int __set_diag_interface(struct hci_dev *hdev) 2732 { 2733 struct btusb_data *data = hci_get_drvdata(hdev); 2734 struct usb_interface *intf = data->diag; 2735 int i; 2736 2737 if (!data->diag) 2738 return -ENODEV; 2739 2740 data->diag_tx_ep = NULL; 2741 data->diag_rx_ep = NULL; 2742 2743 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) { 2744 struct usb_endpoint_descriptor *ep_desc; 2745 2746 ep_desc = &intf->cur_altsetting->endpoint[i].desc; 2747 2748 if (!data->diag_tx_ep && usb_endpoint_is_bulk_out(ep_desc)) { 2749 data->diag_tx_ep = ep_desc; 2750 continue; 2751 } 2752 2753 if (!data->diag_rx_ep && usb_endpoint_is_bulk_in(ep_desc)) { 2754 data->diag_rx_ep = ep_desc; 2755 continue; 2756 } 2757 } 2758 2759 if (!data->diag_tx_ep || !data->diag_rx_ep) { 2760 BT_ERR("%s invalid diagnostic descriptors", hdev->name); 2761 return -ENODEV; 2762 } 2763 2764 return 0; 2765 } 2766 2767 static struct urb *alloc_diag_urb(struct hci_dev *hdev, bool enable) 2768 { 2769 struct btusb_data *data = hci_get_drvdata(hdev); 2770 struct sk_buff *skb; 2771 struct urb *urb; 2772 unsigned int pipe; 2773 2774 if (!data->diag_tx_ep) 2775 return ERR_PTR(-ENODEV); 2776 2777 urb = usb_alloc_urb(0, GFP_KERNEL); 2778 if (!urb) 2779 return ERR_PTR(-ENOMEM); 2780 2781 skb = bt_skb_alloc(2, GFP_KERNEL); 2782 if (!skb) { 2783 usb_free_urb(urb); 2784 return ERR_PTR(-ENOMEM); 2785 } 2786 2787 skb_put_u8(skb, 0xf0); 2788 skb_put_u8(skb, enable); 2789 2790 pipe = usb_sndbulkpipe(data->udev, data->diag_tx_ep->bEndpointAddress); 2791 2792 usb_fill_bulk_urb(urb, data->udev, pipe, 2793 skb->data, skb->len, btusb_tx_complete, skb); 2794 2795 skb->dev = (void *)hdev; 2796 2797 return urb; 2798 } 2799 2800 static int btusb_bcm_set_diag(struct hci_dev *hdev, bool enable) 2801 { 2802 struct btusb_data *data = hci_get_drvdata(hdev); 2803 struct urb *urb; 2804 2805 if (!data->diag) 2806 return -ENODEV; 2807 2808 if (!test_bit(HCI_RUNNING, &hdev->flags)) 2809 return -ENETDOWN; 2810 2811 urb = alloc_diag_urb(hdev, enable); 2812 if (IS_ERR(urb)) 2813 return PTR_ERR(urb); 2814 2815 return submit_or_queue_tx_urb(hdev, urb); 2816 } 2817 #endif 2818 2819 #ifdef CONFIG_PM 2820 static irqreturn_t btusb_oob_wake_handler(int irq, void *priv) 2821 { 2822 struct btusb_data *data = priv; 2823 2824 pm_wakeup_event(&data->udev->dev, 0); 2825 pm_system_wakeup(); 2826 2827 /* Disable only if not already disabled (keep it balanced) */ 2828 if (test_and_clear_bit(BTUSB_OOB_WAKE_ENABLED, &data->flags)) { 2829 disable_irq_nosync(irq); 2830 disable_irq_wake(irq); 2831 } 2832 return IRQ_HANDLED; 2833 } 2834 2835 static const struct of_device_id btusb_match_table[] = { 2836 { .compatible = "usb1286,204e" }, 2837 { } 2838 }; 2839 MODULE_DEVICE_TABLE(of, btusb_match_table); 2840 2841 /* Use an oob wakeup pin? */ 2842 static int btusb_config_oob_wake(struct hci_dev *hdev) 2843 { 2844 struct btusb_data *data = hci_get_drvdata(hdev); 2845 struct device *dev = &data->udev->dev; 2846 int irq, ret; 2847 2848 clear_bit(BTUSB_OOB_WAKE_ENABLED, &data->flags); 2849 2850 if (!of_match_device(btusb_match_table, dev)) 2851 return 0; 2852 2853 /* Move on if no IRQ specified */ 2854 irq = of_irq_get_byname(dev->of_node, "wakeup"); 2855 if (irq <= 0) { 2856 bt_dev_dbg(hdev, "%s: no OOB Wakeup IRQ in DT", __func__); 2857 return 0; 2858 } 2859 2860 ret = devm_request_irq(&hdev->dev, irq, btusb_oob_wake_handler, 2861 0, "OOB Wake-on-BT", data); 2862 if (ret) { 2863 bt_dev_err(hdev, "%s: IRQ request failed", __func__); 2864 return ret; 2865 } 2866 2867 ret = device_init_wakeup(dev, true); 2868 if (ret) { 2869 bt_dev_err(hdev, "%s: failed to init_wakeup", __func__); 2870 return ret; 2871 } 2872 2873 data->oob_wake_irq = irq; 2874 disable_irq(irq); 2875 bt_dev_info(hdev, "OOB Wake-on-BT configured at IRQ %u", irq); 2876 return 0; 2877 } 2878 #endif 2879 2880 static int btusb_probe(struct usb_interface *intf, 2881 const struct usb_device_id *id) 2882 { 2883 struct usb_endpoint_descriptor *ep_desc; 2884 struct btusb_data *data; 2885 struct hci_dev *hdev; 2886 unsigned ifnum_base; 2887 int i, err; 2888 2889 BT_DBG("intf %p id %p", intf, id); 2890 2891 /* interface numbers are hardcoded in the spec */ 2892 if (intf->cur_altsetting->desc.bInterfaceNumber != 0) { 2893 if (!(id->driver_info & BTUSB_IFNUM_2)) 2894 return -ENODEV; 2895 if (intf->cur_altsetting->desc.bInterfaceNumber != 2) 2896 return -ENODEV; 2897 } 2898 2899 ifnum_base = intf->cur_altsetting->desc.bInterfaceNumber; 2900 2901 if (!id->driver_info) { 2902 const struct usb_device_id *match; 2903 2904 match = usb_match_id(intf, blacklist_table); 2905 if (match) 2906 id = match; 2907 } 2908 2909 if (id->driver_info == BTUSB_IGNORE) 2910 return -ENODEV; 2911 2912 if (id->driver_info & BTUSB_BCM_NO_PRODID) { 2913 struct usb_device *udev = interface_to_usbdev(intf); 2914 2915 /* For the broken Broadcom devices that show 0000:0000 2916 * as USB vendor and product information, check that the 2917 * manufacturer string identifies them as Broadcom based 2918 * devices. 2919 */ 2920 if (!udev->manufacturer || 2921 strcmp(udev->manufacturer, "Broadcom Corp")) 2922 return -ENODEV; 2923 } 2924 2925 if (id->driver_info & BTUSB_ATH3012) { 2926 struct usb_device *udev = interface_to_usbdev(intf); 2927 2928 /* Old firmware would otherwise let ath3k driver load 2929 * patch and sysconfig files 2930 */ 2931 if (le16_to_cpu(udev->descriptor.bcdDevice) <= 0x0001) 2932 return -ENODEV; 2933 } 2934 2935 data = devm_kzalloc(&intf->dev, sizeof(*data), GFP_KERNEL); 2936 if (!data) 2937 return -ENOMEM; 2938 2939 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) { 2940 ep_desc = &intf->cur_altsetting->endpoint[i].desc; 2941 2942 if (!data->intr_ep && usb_endpoint_is_int_in(ep_desc)) { 2943 data->intr_ep = ep_desc; 2944 continue; 2945 } 2946 2947 if (!data->bulk_tx_ep && usb_endpoint_is_bulk_out(ep_desc)) { 2948 data->bulk_tx_ep = ep_desc; 2949 continue; 2950 } 2951 2952 if (!data->bulk_rx_ep && usb_endpoint_is_bulk_in(ep_desc)) { 2953 data->bulk_rx_ep = ep_desc; 2954 continue; 2955 } 2956 } 2957 2958 if (!data->intr_ep || !data->bulk_tx_ep || !data->bulk_rx_ep) 2959 return -ENODEV; 2960 2961 if (id->driver_info & BTUSB_AMP) { 2962 data->cmdreq_type = USB_TYPE_CLASS | 0x01; 2963 data->cmdreq = 0x2b; 2964 } else { 2965 data->cmdreq_type = USB_TYPE_CLASS; 2966 data->cmdreq = 0x00; 2967 } 2968 2969 data->udev = interface_to_usbdev(intf); 2970 data->intf = intf; 2971 2972 INIT_WORK(&data->work, btusb_work); 2973 INIT_WORK(&data->waker, btusb_waker); 2974 init_usb_anchor(&data->deferred); 2975 init_usb_anchor(&data->tx_anchor); 2976 spin_lock_init(&data->txlock); 2977 2978 init_usb_anchor(&data->intr_anchor); 2979 init_usb_anchor(&data->bulk_anchor); 2980 init_usb_anchor(&data->isoc_anchor); 2981 init_usb_anchor(&data->diag_anchor); 2982 spin_lock_init(&data->rxlock); 2983 2984 if (id->driver_info & BTUSB_INTEL_NEW) { 2985 data->recv_event = btusb_recv_event_intel; 2986 data->recv_bulk = btusb_recv_bulk_intel; 2987 set_bit(BTUSB_BOOTLOADER, &data->flags); 2988 } else { 2989 data->recv_event = hci_recv_frame; 2990 data->recv_bulk = btusb_recv_bulk; 2991 } 2992 2993 hdev = hci_alloc_dev(); 2994 if (!hdev) 2995 return -ENOMEM; 2996 2997 hdev->bus = HCI_USB; 2998 hci_set_drvdata(hdev, data); 2999 3000 if (id->driver_info & BTUSB_AMP) 3001 hdev->dev_type = HCI_AMP; 3002 else 3003 hdev->dev_type = HCI_PRIMARY; 3004 3005 data->hdev = hdev; 3006 3007 SET_HCIDEV_DEV(hdev, &intf->dev); 3008 3009 hdev->open = btusb_open; 3010 hdev->close = btusb_close; 3011 hdev->flush = btusb_flush; 3012 hdev->send = btusb_send_frame; 3013 hdev->notify = btusb_notify; 3014 3015 #ifdef CONFIG_PM 3016 err = btusb_config_oob_wake(hdev); 3017 if (err) 3018 goto out_free_dev; 3019 3020 /* Marvell devices may need a specific chip configuration */ 3021 if (id->driver_info & BTUSB_MARVELL && data->oob_wake_irq) { 3022 err = marvell_config_oob_wake(hdev); 3023 if (err) 3024 goto out_free_dev; 3025 } 3026 #endif 3027 if (id->driver_info & BTUSB_CW6622) 3028 set_bit(HCI_QUIRK_BROKEN_STORED_LINK_KEY, &hdev->quirks); 3029 3030 if (id->driver_info & BTUSB_BCM2045) 3031 set_bit(HCI_QUIRK_BROKEN_STORED_LINK_KEY, &hdev->quirks); 3032 3033 if (id->driver_info & BTUSB_BCM92035) 3034 hdev->setup = btusb_setup_bcm92035; 3035 3036 #ifdef CONFIG_BT_HCIBTUSB_BCM 3037 if (id->driver_info & BTUSB_BCM_PATCHRAM) { 3038 hdev->manufacturer = 15; 3039 hdev->setup = btbcm_setup_patchram; 3040 hdev->set_diag = btusb_bcm_set_diag; 3041 hdev->set_bdaddr = btbcm_set_bdaddr; 3042 3043 /* Broadcom LM_DIAG Interface numbers are hardcoded */ 3044 data->diag = usb_ifnum_to_if(data->udev, ifnum_base + 2); 3045 } 3046 3047 if (id->driver_info & BTUSB_BCM_APPLE) { 3048 hdev->manufacturer = 15; 3049 hdev->setup = btbcm_setup_apple; 3050 hdev->set_diag = btusb_bcm_set_diag; 3051 3052 /* Broadcom LM_DIAG Interface numbers are hardcoded */ 3053 data->diag = usb_ifnum_to_if(data->udev, ifnum_base + 2); 3054 } 3055 #endif 3056 3057 if (id->driver_info & BTUSB_INTEL) { 3058 hdev->manufacturer = 2; 3059 hdev->setup = btusb_setup_intel; 3060 hdev->shutdown = btusb_shutdown_intel; 3061 hdev->set_diag = btintel_set_diag_mfg; 3062 hdev->set_bdaddr = btintel_set_bdaddr; 3063 set_bit(HCI_QUIRK_STRICT_DUPLICATE_FILTER, &hdev->quirks); 3064 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks); 3065 set_bit(HCI_QUIRK_NON_PERSISTENT_DIAG, &hdev->quirks); 3066 } 3067 3068 if (id->driver_info & BTUSB_INTEL_NEW) { 3069 hdev->manufacturer = 2; 3070 hdev->send = btusb_send_frame_intel; 3071 hdev->setup = btusb_setup_intel_new; 3072 hdev->hw_error = btintel_hw_error; 3073 hdev->set_diag = btintel_set_diag; 3074 hdev->set_bdaddr = btintel_set_bdaddr; 3075 set_bit(HCI_QUIRK_STRICT_DUPLICATE_FILTER, &hdev->quirks); 3076 set_bit(HCI_QUIRK_NON_PERSISTENT_DIAG, &hdev->quirks); 3077 } 3078 3079 if (id->driver_info & BTUSB_MARVELL) 3080 hdev->set_bdaddr = btusb_set_bdaddr_marvell; 3081 3082 if (id->driver_info & BTUSB_SWAVE) { 3083 set_bit(HCI_QUIRK_FIXUP_INQUIRY_MODE, &hdev->quirks); 3084 set_bit(HCI_QUIRK_BROKEN_LOCAL_COMMANDS, &hdev->quirks); 3085 } 3086 3087 if (id->driver_info & BTUSB_INTEL_BOOT) { 3088 hdev->manufacturer = 2; 3089 set_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks); 3090 } 3091 3092 if (id->driver_info & BTUSB_ATH3012) { 3093 hdev->set_bdaddr = btusb_set_bdaddr_ath3012; 3094 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks); 3095 set_bit(HCI_QUIRK_STRICT_DUPLICATE_FILTER, &hdev->quirks); 3096 } 3097 3098 if (id->driver_info & BTUSB_QCA_ROME) { 3099 data->setup_on_usb = btusb_setup_qca; 3100 hdev->set_bdaddr = btusb_set_bdaddr_ath3012; 3101 3102 /* QCA Rome devices lose their updated firmware over suspend, 3103 * but the USB hub doesn't notice any status change. 3104 * Explicitly request a device reset on resume. 3105 */ 3106 set_bit(BTUSB_RESET_RESUME, &data->flags); 3107 } 3108 3109 #ifdef CONFIG_BT_HCIBTUSB_RTL 3110 if (id->driver_info & BTUSB_REALTEK) { 3111 hdev->setup = btrtl_setup_realtek; 3112 3113 /* Realtek devices lose their updated firmware over suspend, 3114 * but the USB hub doesn't notice any status change. 3115 * Explicitly request a device reset on resume. 3116 */ 3117 set_bit(BTUSB_RESET_RESUME, &data->flags); 3118 } 3119 #endif 3120 3121 if (id->driver_info & BTUSB_AMP) { 3122 /* AMP controllers do not support SCO packets */ 3123 data->isoc = NULL; 3124 } else { 3125 /* Interface orders are hardcoded in the specification */ 3126 data->isoc = usb_ifnum_to_if(data->udev, ifnum_base + 1); 3127 } 3128 3129 if (!reset) 3130 set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks); 3131 3132 if (force_scofix || id->driver_info & BTUSB_WRONG_SCO_MTU) { 3133 if (!disable_scofix) 3134 set_bit(HCI_QUIRK_FIXUP_BUFFER_SIZE, &hdev->quirks); 3135 } 3136 3137 if (id->driver_info & BTUSB_BROKEN_ISOC) 3138 data->isoc = NULL; 3139 3140 if (id->driver_info & BTUSB_DIGIANSWER) { 3141 data->cmdreq_type = USB_TYPE_VENDOR; 3142 set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks); 3143 } 3144 3145 if (id->driver_info & BTUSB_CSR) { 3146 struct usb_device *udev = data->udev; 3147 u16 bcdDevice = le16_to_cpu(udev->descriptor.bcdDevice); 3148 3149 /* Old firmware would otherwise execute USB reset */ 3150 if (bcdDevice < 0x117) 3151 set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks); 3152 3153 /* Fake CSR devices with broken commands */ 3154 if (bcdDevice <= 0x100 || bcdDevice == 0x134) 3155 hdev->setup = btusb_setup_csr; 3156 3157 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks); 3158 } 3159 3160 if (id->driver_info & BTUSB_SNIFFER) { 3161 struct usb_device *udev = data->udev; 3162 3163 /* New sniffer firmware has crippled HCI interface */ 3164 if (le16_to_cpu(udev->descriptor.bcdDevice) > 0x997) 3165 set_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks); 3166 } 3167 3168 if (id->driver_info & BTUSB_INTEL_BOOT) { 3169 /* A bug in the bootloader causes that interrupt interface is 3170 * only enabled after receiving SetInterface(0, AltSetting=0). 3171 */ 3172 err = usb_set_interface(data->udev, 0, 0); 3173 if (err < 0) { 3174 BT_ERR("failed to set interface 0, alt 0 %d", err); 3175 goto out_free_dev; 3176 } 3177 } 3178 3179 if (data->isoc) { 3180 err = usb_driver_claim_interface(&btusb_driver, 3181 data->isoc, data); 3182 if (err < 0) 3183 goto out_free_dev; 3184 } 3185 3186 #ifdef CONFIG_BT_HCIBTUSB_BCM 3187 if (data->diag) { 3188 if (!usb_driver_claim_interface(&btusb_driver, 3189 data->diag, data)) 3190 __set_diag_interface(hdev); 3191 else 3192 data->diag = NULL; 3193 } 3194 #endif 3195 3196 err = hci_register_dev(hdev); 3197 if (err < 0) 3198 goto out_free_dev; 3199 3200 usb_set_intfdata(intf, data); 3201 3202 return 0; 3203 3204 out_free_dev: 3205 hci_free_dev(hdev); 3206 return err; 3207 } 3208 3209 static void btusb_disconnect(struct usb_interface *intf) 3210 { 3211 struct btusb_data *data = usb_get_intfdata(intf); 3212 struct hci_dev *hdev; 3213 3214 BT_DBG("intf %p", intf); 3215 3216 if (!data) 3217 return; 3218 3219 hdev = data->hdev; 3220 usb_set_intfdata(data->intf, NULL); 3221 3222 if (data->isoc) 3223 usb_set_intfdata(data->isoc, NULL); 3224 3225 if (data->diag) 3226 usb_set_intfdata(data->diag, NULL); 3227 3228 hci_unregister_dev(hdev); 3229 3230 if (intf == data->intf) { 3231 if (data->isoc) 3232 usb_driver_release_interface(&btusb_driver, data->isoc); 3233 if (data->diag) 3234 usb_driver_release_interface(&btusb_driver, data->diag); 3235 } else if (intf == data->isoc) { 3236 if (data->diag) 3237 usb_driver_release_interface(&btusb_driver, data->diag); 3238 usb_driver_release_interface(&btusb_driver, data->intf); 3239 } else if (intf == data->diag) { 3240 usb_driver_release_interface(&btusb_driver, data->intf); 3241 if (data->isoc) 3242 usb_driver_release_interface(&btusb_driver, data->isoc); 3243 } 3244 3245 if (data->oob_wake_irq) 3246 device_init_wakeup(&data->udev->dev, false); 3247 3248 hci_free_dev(hdev); 3249 } 3250 3251 #ifdef CONFIG_PM 3252 static int btusb_suspend(struct usb_interface *intf, pm_message_t message) 3253 { 3254 struct btusb_data *data = usb_get_intfdata(intf); 3255 3256 BT_DBG("intf %p", intf); 3257 3258 if (data->suspend_count++) 3259 return 0; 3260 3261 spin_lock_irq(&data->txlock); 3262 if (!(PMSG_IS_AUTO(message) && data->tx_in_flight)) { 3263 set_bit(BTUSB_SUSPENDING, &data->flags); 3264 spin_unlock_irq(&data->txlock); 3265 } else { 3266 spin_unlock_irq(&data->txlock); 3267 data->suspend_count--; 3268 return -EBUSY; 3269 } 3270 3271 cancel_work_sync(&data->work); 3272 3273 btusb_stop_traffic(data); 3274 usb_kill_anchored_urbs(&data->tx_anchor); 3275 3276 if (data->oob_wake_irq && device_may_wakeup(&data->udev->dev)) { 3277 set_bit(BTUSB_OOB_WAKE_ENABLED, &data->flags); 3278 enable_irq_wake(data->oob_wake_irq); 3279 enable_irq(data->oob_wake_irq); 3280 } 3281 3282 /* Optionally request a device reset on resume, but only when 3283 * wakeups are disabled. If wakeups are enabled we assume the 3284 * device will stay powered up throughout suspend. 3285 */ 3286 if (test_bit(BTUSB_RESET_RESUME, &data->flags) && 3287 !device_may_wakeup(&data->udev->dev)) 3288 data->udev->reset_resume = 1; 3289 3290 return 0; 3291 } 3292 3293 static void play_deferred(struct btusb_data *data) 3294 { 3295 struct urb *urb; 3296 int err; 3297 3298 while ((urb = usb_get_from_anchor(&data->deferred))) { 3299 usb_anchor_urb(urb, &data->tx_anchor); 3300 3301 err = usb_submit_urb(urb, GFP_ATOMIC); 3302 if (err < 0) { 3303 if (err != -EPERM && err != -ENODEV) 3304 BT_ERR("%s urb %p submission failed (%d)", 3305 data->hdev->name, urb, -err); 3306 kfree(urb->setup_packet); 3307 usb_unanchor_urb(urb); 3308 usb_free_urb(urb); 3309 break; 3310 } 3311 3312 data->tx_in_flight++; 3313 usb_free_urb(urb); 3314 } 3315 3316 /* Cleanup the rest deferred urbs. */ 3317 while ((urb = usb_get_from_anchor(&data->deferred))) { 3318 kfree(urb->setup_packet); 3319 usb_free_urb(urb); 3320 } 3321 } 3322 3323 static int btusb_resume(struct usb_interface *intf) 3324 { 3325 struct btusb_data *data = usb_get_intfdata(intf); 3326 struct hci_dev *hdev = data->hdev; 3327 int err = 0; 3328 3329 BT_DBG("intf %p", intf); 3330 3331 if (--data->suspend_count) 3332 return 0; 3333 3334 /* Disable only if not already disabled (keep it balanced) */ 3335 if (test_and_clear_bit(BTUSB_OOB_WAKE_ENABLED, &data->flags)) { 3336 disable_irq(data->oob_wake_irq); 3337 disable_irq_wake(data->oob_wake_irq); 3338 } 3339 3340 if (!test_bit(HCI_RUNNING, &hdev->flags)) 3341 goto done; 3342 3343 if (test_bit(BTUSB_INTR_RUNNING, &data->flags)) { 3344 err = btusb_submit_intr_urb(hdev, GFP_NOIO); 3345 if (err < 0) { 3346 clear_bit(BTUSB_INTR_RUNNING, &data->flags); 3347 goto failed; 3348 } 3349 } 3350 3351 if (test_bit(BTUSB_BULK_RUNNING, &data->flags)) { 3352 err = btusb_submit_bulk_urb(hdev, GFP_NOIO); 3353 if (err < 0) { 3354 clear_bit(BTUSB_BULK_RUNNING, &data->flags); 3355 goto failed; 3356 } 3357 3358 btusb_submit_bulk_urb(hdev, GFP_NOIO); 3359 } 3360 3361 if (test_bit(BTUSB_ISOC_RUNNING, &data->flags)) { 3362 if (btusb_submit_isoc_urb(hdev, GFP_NOIO) < 0) 3363 clear_bit(BTUSB_ISOC_RUNNING, &data->flags); 3364 else 3365 btusb_submit_isoc_urb(hdev, GFP_NOIO); 3366 } 3367 3368 spin_lock_irq(&data->txlock); 3369 play_deferred(data); 3370 clear_bit(BTUSB_SUSPENDING, &data->flags); 3371 spin_unlock_irq(&data->txlock); 3372 schedule_work(&data->work); 3373 3374 return 0; 3375 3376 failed: 3377 usb_scuttle_anchored_urbs(&data->deferred); 3378 done: 3379 spin_lock_irq(&data->txlock); 3380 clear_bit(BTUSB_SUSPENDING, &data->flags); 3381 spin_unlock_irq(&data->txlock); 3382 3383 return err; 3384 } 3385 #endif 3386 3387 static struct usb_driver btusb_driver = { 3388 .name = "btusb", 3389 .probe = btusb_probe, 3390 .disconnect = btusb_disconnect, 3391 #ifdef CONFIG_PM 3392 .suspend = btusb_suspend, 3393 .resume = btusb_resume, 3394 #endif 3395 .id_table = btusb_table, 3396 .supports_autosuspend = 1, 3397 .disable_hub_initiated_lpm = 1, 3398 }; 3399 3400 module_usb_driver(btusb_driver); 3401 3402 module_param(disable_scofix, bool, 0644); 3403 MODULE_PARM_DESC(disable_scofix, "Disable fixup of wrong SCO buffer size"); 3404 3405 module_param(force_scofix, bool, 0644); 3406 MODULE_PARM_DESC(force_scofix, "Force fixup of wrong SCO buffers size"); 3407 3408 module_param(reset, bool, 0644); 3409 MODULE_PARM_DESC(reset, "Send HCI reset command on initialization"); 3410 3411 MODULE_AUTHOR("Marcel Holtmann <marcel@holtmann.org>"); 3412 MODULE_DESCRIPTION("Generic Bluetooth USB driver ver " VERSION); 3413 MODULE_VERSION(VERSION); 3414 MODULE_LICENSE("GPL"); 3415