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 70 static const struct usb_device_id btusb_table[] = { 71 /* Generic Bluetooth USB device */ 72 { USB_DEVICE_INFO(0xe0, 0x01, 0x01) }, 73 74 /* Generic Bluetooth AMP device */ 75 { USB_DEVICE_INFO(0xe0, 0x01, 0x04), .driver_info = BTUSB_AMP }, 76 77 /* Generic Bluetooth USB interface */ 78 { USB_INTERFACE_INFO(0xe0, 0x01, 0x01) }, 79 80 /* Apple-specific (Broadcom) devices */ 81 { USB_VENDOR_AND_INTERFACE_INFO(0x05ac, 0xff, 0x01, 0x01), 82 .driver_info = BTUSB_BCM_APPLE | BTUSB_IFNUM_2 }, 83 84 /* MediaTek MT76x0E */ 85 { USB_DEVICE(0x0e8d, 0x763f) }, 86 87 /* Broadcom SoftSailing reporting vendor specific */ 88 { USB_DEVICE(0x0a5c, 0x21e1) }, 89 90 /* Apple MacBookPro 7,1 */ 91 { USB_DEVICE(0x05ac, 0x8213) }, 92 93 /* Apple iMac11,1 */ 94 { USB_DEVICE(0x05ac, 0x8215) }, 95 96 /* Apple MacBookPro6,2 */ 97 { USB_DEVICE(0x05ac, 0x8218) }, 98 99 /* Apple MacBookAir3,1, MacBookAir3,2 */ 100 { USB_DEVICE(0x05ac, 0x821b) }, 101 102 /* Apple MacBookAir4,1 */ 103 { USB_DEVICE(0x05ac, 0x821f) }, 104 105 /* Apple MacBookPro8,2 */ 106 { USB_DEVICE(0x05ac, 0x821a) }, 107 108 /* Apple MacMini5,1 */ 109 { USB_DEVICE(0x05ac, 0x8281) }, 110 111 /* AVM BlueFRITZ! USB v2.0 */ 112 { USB_DEVICE(0x057c, 0x3800), .driver_info = BTUSB_SWAVE }, 113 114 /* Bluetooth Ultraport Module from IBM */ 115 { USB_DEVICE(0x04bf, 0x030a) }, 116 117 /* ALPS Modules with non-standard id */ 118 { USB_DEVICE(0x044e, 0x3001) }, 119 { USB_DEVICE(0x044e, 0x3002) }, 120 121 /* Ericsson with non-standard id */ 122 { USB_DEVICE(0x0bdb, 0x1002) }, 123 124 /* Canyon CN-BTU1 with HID interfaces */ 125 { USB_DEVICE(0x0c10, 0x0000) }, 126 127 /* Broadcom BCM20702A0 */ 128 { USB_DEVICE(0x413c, 0x8197) }, 129 130 /* Broadcom BCM20702B0 (Dynex/Insignia) */ 131 { USB_DEVICE(0x19ff, 0x0239), .driver_info = BTUSB_BCM_PATCHRAM }, 132 133 /* Broadcom BCM43142A0 (Foxconn/Lenovo) */ 134 { USB_VENDOR_AND_INTERFACE_INFO(0x105b, 0xff, 0x01, 0x01), 135 .driver_info = BTUSB_BCM_PATCHRAM }, 136 137 /* Broadcom BCM920703 (HTC Vive) */ 138 { USB_VENDOR_AND_INTERFACE_INFO(0x0bb4, 0xff, 0x01, 0x01), 139 .driver_info = BTUSB_BCM_PATCHRAM }, 140 141 /* Foxconn - Hon Hai */ 142 { USB_VENDOR_AND_INTERFACE_INFO(0x0489, 0xff, 0x01, 0x01), 143 .driver_info = BTUSB_BCM_PATCHRAM }, 144 145 /* Lite-On Technology - Broadcom based */ 146 { USB_VENDOR_AND_INTERFACE_INFO(0x04ca, 0xff, 0x01, 0x01), 147 .driver_info = BTUSB_BCM_PATCHRAM }, 148 149 /* Broadcom devices with vendor specific id */ 150 { USB_VENDOR_AND_INTERFACE_INFO(0x0a5c, 0xff, 0x01, 0x01), 151 .driver_info = BTUSB_BCM_PATCHRAM }, 152 153 /* ASUSTek Computer - Broadcom based */ 154 { USB_VENDOR_AND_INTERFACE_INFO(0x0b05, 0xff, 0x01, 0x01), 155 .driver_info = BTUSB_BCM_PATCHRAM }, 156 157 /* Belkin F8065bf - Broadcom based */ 158 { USB_VENDOR_AND_INTERFACE_INFO(0x050d, 0xff, 0x01, 0x01), 159 .driver_info = BTUSB_BCM_PATCHRAM }, 160 161 /* IMC Networks - Broadcom based */ 162 { USB_VENDOR_AND_INTERFACE_INFO(0x13d3, 0xff, 0x01, 0x01), 163 .driver_info = BTUSB_BCM_PATCHRAM }, 164 165 /* Dell Computer - Broadcom based */ 166 { USB_VENDOR_AND_INTERFACE_INFO(0x413c, 0xff, 0x01, 0x01), 167 .driver_info = BTUSB_BCM_PATCHRAM }, 168 169 /* Toshiba Corp - Broadcom based */ 170 { USB_VENDOR_AND_INTERFACE_INFO(0x0930, 0xff, 0x01, 0x01), 171 .driver_info = BTUSB_BCM_PATCHRAM }, 172 173 /* Intel Bluetooth USB Bootloader (RAM module) */ 174 { USB_DEVICE(0x8087, 0x0a5a), 175 .driver_info = BTUSB_INTEL_BOOT | BTUSB_BROKEN_ISOC }, 176 177 { } /* Terminating entry */ 178 }; 179 180 MODULE_DEVICE_TABLE(usb, btusb_table); 181 182 static const struct usb_device_id blacklist_table[] = { 183 /* CSR BlueCore devices */ 184 { USB_DEVICE(0x0a12, 0x0001), .driver_info = BTUSB_CSR }, 185 186 /* Broadcom BCM2033 without firmware */ 187 { USB_DEVICE(0x0a5c, 0x2033), .driver_info = BTUSB_IGNORE }, 188 189 /* Broadcom BCM2045 devices */ 190 { USB_DEVICE(0x0a5c, 0x2045), .driver_info = BTUSB_BCM2045 }, 191 192 /* Atheros 3011 with sflash firmware */ 193 { USB_DEVICE(0x0489, 0xe027), .driver_info = BTUSB_IGNORE }, 194 { USB_DEVICE(0x0489, 0xe03d), .driver_info = BTUSB_IGNORE }, 195 { USB_DEVICE(0x04f2, 0xaff1), .driver_info = BTUSB_IGNORE }, 196 { USB_DEVICE(0x0930, 0x0215), .driver_info = BTUSB_IGNORE }, 197 { USB_DEVICE(0x0cf3, 0x3002), .driver_info = BTUSB_IGNORE }, 198 { USB_DEVICE(0x0cf3, 0xe019), .driver_info = BTUSB_IGNORE }, 199 { USB_DEVICE(0x13d3, 0x3304), .driver_info = BTUSB_IGNORE }, 200 201 /* Atheros AR9285 Malbec with sflash firmware */ 202 { USB_DEVICE(0x03f0, 0x311d), .driver_info = BTUSB_IGNORE }, 203 204 /* Atheros 3012 with sflash firmware */ 205 { USB_DEVICE(0x0489, 0xe04d), .driver_info = BTUSB_ATH3012 }, 206 { USB_DEVICE(0x0489, 0xe04e), .driver_info = BTUSB_ATH3012 }, 207 { USB_DEVICE(0x0489, 0xe056), .driver_info = BTUSB_ATH3012 }, 208 { USB_DEVICE(0x0489, 0xe057), .driver_info = BTUSB_ATH3012 }, 209 { USB_DEVICE(0x0489, 0xe05f), .driver_info = BTUSB_ATH3012 }, 210 { USB_DEVICE(0x0489, 0xe076), .driver_info = BTUSB_ATH3012 }, 211 { USB_DEVICE(0x0489, 0xe078), .driver_info = BTUSB_ATH3012 }, 212 { USB_DEVICE(0x0489, 0xe095), .driver_info = BTUSB_ATH3012 }, 213 { USB_DEVICE(0x04c5, 0x1330), .driver_info = BTUSB_ATH3012 }, 214 { USB_DEVICE(0x04ca, 0x3004), .driver_info = BTUSB_ATH3012 }, 215 { USB_DEVICE(0x04ca, 0x3005), .driver_info = BTUSB_ATH3012 }, 216 { USB_DEVICE(0x04ca, 0x3006), .driver_info = BTUSB_ATH3012 }, 217 { USB_DEVICE(0x04ca, 0x3007), .driver_info = BTUSB_ATH3012 }, 218 { USB_DEVICE(0x04ca, 0x3008), .driver_info = BTUSB_ATH3012 }, 219 { USB_DEVICE(0x04ca, 0x300b), .driver_info = BTUSB_ATH3012 }, 220 { USB_DEVICE(0x04ca, 0x300d), .driver_info = BTUSB_ATH3012 }, 221 { USB_DEVICE(0x04ca, 0x300f), .driver_info = BTUSB_ATH3012 }, 222 { USB_DEVICE(0x04ca, 0x3010), .driver_info = BTUSB_ATH3012 }, 223 { USB_DEVICE(0x04ca, 0x3014), .driver_info = BTUSB_ATH3012 }, 224 { USB_DEVICE(0x04ca, 0x3018), .driver_info = BTUSB_ATH3012 }, 225 { USB_DEVICE(0x0930, 0x0219), .driver_info = BTUSB_ATH3012 }, 226 { USB_DEVICE(0x0930, 0x021c), .driver_info = BTUSB_ATH3012 }, 227 { USB_DEVICE(0x0930, 0x0220), .driver_info = BTUSB_ATH3012 }, 228 { USB_DEVICE(0x0930, 0x0227), .driver_info = BTUSB_ATH3012 }, 229 { USB_DEVICE(0x0b05, 0x17d0), .driver_info = BTUSB_ATH3012 }, 230 { USB_DEVICE(0x0cf3, 0x0036), .driver_info = BTUSB_ATH3012 }, 231 { USB_DEVICE(0x0cf3, 0x3004), .driver_info = BTUSB_ATH3012 }, 232 { USB_DEVICE(0x0cf3, 0x3008), .driver_info = BTUSB_ATH3012 }, 233 { USB_DEVICE(0x0cf3, 0x311d), .driver_info = BTUSB_ATH3012 }, 234 { USB_DEVICE(0x0cf3, 0x311e), .driver_info = BTUSB_ATH3012 }, 235 { USB_DEVICE(0x0cf3, 0x311f), .driver_info = BTUSB_ATH3012 }, 236 { USB_DEVICE(0x0cf3, 0x3121), .driver_info = BTUSB_ATH3012 }, 237 { USB_DEVICE(0x0cf3, 0x817a), .driver_info = BTUSB_ATH3012 }, 238 { USB_DEVICE(0x0cf3, 0x817b), .driver_info = BTUSB_ATH3012 }, 239 { USB_DEVICE(0x0cf3, 0xe003), .driver_info = BTUSB_ATH3012 }, 240 { USB_DEVICE(0x0cf3, 0xe004), .driver_info = BTUSB_ATH3012 }, 241 { USB_DEVICE(0x0cf3, 0xe005), .driver_info = BTUSB_ATH3012 }, 242 { USB_DEVICE(0x0cf3, 0xe006), .driver_info = BTUSB_ATH3012 }, 243 { USB_DEVICE(0x13d3, 0x3362), .driver_info = BTUSB_ATH3012 }, 244 { USB_DEVICE(0x13d3, 0x3375), .driver_info = BTUSB_ATH3012 }, 245 { USB_DEVICE(0x13d3, 0x3393), .driver_info = BTUSB_ATH3012 }, 246 { USB_DEVICE(0x13d3, 0x3395), .driver_info = BTUSB_ATH3012 }, 247 { USB_DEVICE(0x13d3, 0x3402), .driver_info = BTUSB_ATH3012 }, 248 { USB_DEVICE(0x13d3, 0x3408), .driver_info = BTUSB_ATH3012 }, 249 { USB_DEVICE(0x13d3, 0x3423), .driver_info = BTUSB_ATH3012 }, 250 { USB_DEVICE(0x13d3, 0x3432), .driver_info = BTUSB_ATH3012 }, 251 { USB_DEVICE(0x13d3, 0x3472), .driver_info = BTUSB_ATH3012 }, 252 { USB_DEVICE(0x13d3, 0x3474), .driver_info = BTUSB_ATH3012 }, 253 { USB_DEVICE(0x13d3, 0x3487), .driver_info = BTUSB_ATH3012 }, 254 { USB_DEVICE(0x13d3, 0x3490), .driver_info = BTUSB_ATH3012 }, 255 256 /* Atheros AR5BBU12 with sflash firmware */ 257 { USB_DEVICE(0x0489, 0xe02c), .driver_info = BTUSB_IGNORE }, 258 259 /* Atheros AR5BBU12 with sflash firmware */ 260 { USB_DEVICE(0x0489, 0xe036), .driver_info = BTUSB_ATH3012 }, 261 { USB_DEVICE(0x0489, 0xe03c), .driver_info = BTUSB_ATH3012 }, 262 263 /* QCA ROME chipset */ 264 { USB_DEVICE(0x0cf3, 0xe007), .driver_info = BTUSB_QCA_ROME }, 265 { USB_DEVICE(0x0cf3, 0xe009), .driver_info = BTUSB_QCA_ROME }, 266 { USB_DEVICE(0x0cf3, 0xe300), .driver_info = BTUSB_QCA_ROME }, 267 { USB_DEVICE(0x0cf3, 0xe301), .driver_info = BTUSB_QCA_ROME }, 268 { USB_DEVICE(0x0cf3, 0xe360), .driver_info = BTUSB_QCA_ROME }, 269 { USB_DEVICE(0x0489, 0xe092), .driver_info = BTUSB_QCA_ROME }, 270 { USB_DEVICE(0x0489, 0xe09f), .driver_info = BTUSB_QCA_ROME }, 271 { USB_DEVICE(0x0489, 0xe0a2), .driver_info = BTUSB_QCA_ROME }, 272 { USB_DEVICE(0x04ca, 0x3011), .driver_info = BTUSB_QCA_ROME }, 273 { USB_DEVICE(0x04ca, 0x3016), .driver_info = BTUSB_QCA_ROME }, 274 275 /* Broadcom BCM2035 */ 276 { USB_DEVICE(0x0a5c, 0x2009), .driver_info = BTUSB_BCM92035 }, 277 { USB_DEVICE(0x0a5c, 0x200a), .driver_info = BTUSB_WRONG_SCO_MTU }, 278 { USB_DEVICE(0x0a5c, 0x2035), .driver_info = BTUSB_WRONG_SCO_MTU }, 279 280 /* Broadcom BCM2045 */ 281 { USB_DEVICE(0x0a5c, 0x2039), .driver_info = BTUSB_WRONG_SCO_MTU }, 282 { USB_DEVICE(0x0a5c, 0x2101), .driver_info = BTUSB_WRONG_SCO_MTU }, 283 284 /* IBM/Lenovo ThinkPad with Broadcom chip */ 285 { USB_DEVICE(0x0a5c, 0x201e), .driver_info = BTUSB_WRONG_SCO_MTU }, 286 { USB_DEVICE(0x0a5c, 0x2110), .driver_info = BTUSB_WRONG_SCO_MTU }, 287 288 /* HP laptop with Broadcom chip */ 289 { USB_DEVICE(0x03f0, 0x171d), .driver_info = BTUSB_WRONG_SCO_MTU }, 290 291 /* Dell laptop with Broadcom chip */ 292 { USB_DEVICE(0x413c, 0x8126), .driver_info = BTUSB_WRONG_SCO_MTU }, 293 294 /* Dell Wireless 370 and 410 devices */ 295 { USB_DEVICE(0x413c, 0x8152), .driver_info = BTUSB_WRONG_SCO_MTU }, 296 { USB_DEVICE(0x413c, 0x8156), .driver_info = BTUSB_WRONG_SCO_MTU }, 297 298 /* Belkin F8T012 and F8T013 devices */ 299 { USB_DEVICE(0x050d, 0x0012), .driver_info = BTUSB_WRONG_SCO_MTU }, 300 { USB_DEVICE(0x050d, 0x0013), .driver_info = BTUSB_WRONG_SCO_MTU }, 301 302 /* Asus WL-BTD202 device */ 303 { USB_DEVICE(0x0b05, 0x1715), .driver_info = BTUSB_WRONG_SCO_MTU }, 304 305 /* Kensington Bluetooth USB adapter */ 306 { USB_DEVICE(0x047d, 0x105e), .driver_info = BTUSB_WRONG_SCO_MTU }, 307 308 /* RTX Telecom based adapters with buggy SCO support */ 309 { USB_DEVICE(0x0400, 0x0807), .driver_info = BTUSB_BROKEN_ISOC }, 310 { USB_DEVICE(0x0400, 0x080a), .driver_info = BTUSB_BROKEN_ISOC }, 311 312 /* CONWISE Technology based adapters with buggy SCO support */ 313 { USB_DEVICE(0x0e5e, 0x6622), 314 .driver_info = BTUSB_BROKEN_ISOC | BTUSB_CW6622}, 315 316 /* Roper Class 1 Bluetooth Dongle (Silicon Wave based) */ 317 { USB_DEVICE(0x1310, 0x0001), .driver_info = BTUSB_SWAVE }, 318 319 /* Digianswer devices */ 320 { USB_DEVICE(0x08fd, 0x0001), .driver_info = BTUSB_DIGIANSWER }, 321 { USB_DEVICE(0x08fd, 0x0002), .driver_info = BTUSB_IGNORE }, 322 323 /* CSR BlueCore Bluetooth Sniffer */ 324 { USB_DEVICE(0x0a12, 0x0002), 325 .driver_info = BTUSB_SNIFFER | BTUSB_BROKEN_ISOC }, 326 327 /* Frontline ComProbe Bluetooth Sniffer */ 328 { USB_DEVICE(0x16d3, 0x0002), 329 .driver_info = BTUSB_SNIFFER | BTUSB_BROKEN_ISOC }, 330 331 /* Marvell Bluetooth devices */ 332 { USB_DEVICE(0x1286, 0x2044), .driver_info = BTUSB_MARVELL }, 333 { USB_DEVICE(0x1286, 0x2046), .driver_info = BTUSB_MARVELL }, 334 { USB_DEVICE(0x1286, 0x204e), .driver_info = BTUSB_MARVELL }, 335 336 /* Intel Bluetooth devices */ 337 { USB_DEVICE(0x8087, 0x0025), .driver_info = BTUSB_INTEL_NEW }, 338 { USB_DEVICE(0x8087, 0x07da), .driver_info = BTUSB_CSR }, 339 { USB_DEVICE(0x8087, 0x07dc), .driver_info = BTUSB_INTEL }, 340 { USB_DEVICE(0x8087, 0x0a2a), .driver_info = BTUSB_INTEL }, 341 { USB_DEVICE(0x8087, 0x0a2b), .driver_info = BTUSB_INTEL_NEW }, 342 { USB_DEVICE(0x8087, 0x0aa7), .driver_info = BTUSB_INTEL }, 343 { USB_DEVICE(0x8087, 0x0aaa), .driver_info = BTUSB_INTEL_NEW }, 344 345 /* Other Intel Bluetooth devices */ 346 { USB_VENDOR_AND_INTERFACE_INFO(0x8087, 0xe0, 0x01, 0x01), 347 .driver_info = BTUSB_IGNORE }, 348 349 /* Realtek Bluetooth devices */ 350 { USB_VENDOR_AND_INTERFACE_INFO(0x0bda, 0xe0, 0x01, 0x01), 351 .driver_info = BTUSB_REALTEK }, 352 353 /* Additional Realtek 8723AE Bluetooth devices */ 354 { USB_DEVICE(0x0930, 0x021d), .driver_info = BTUSB_REALTEK }, 355 { USB_DEVICE(0x13d3, 0x3394), .driver_info = BTUSB_REALTEK }, 356 357 /* Additional Realtek 8723BE Bluetooth devices */ 358 { USB_DEVICE(0x0489, 0xe085), .driver_info = BTUSB_REALTEK }, 359 { USB_DEVICE(0x0489, 0xe08b), .driver_info = BTUSB_REALTEK }, 360 { USB_DEVICE(0x13d3, 0x3410), .driver_info = BTUSB_REALTEK }, 361 { USB_DEVICE(0x13d3, 0x3416), .driver_info = BTUSB_REALTEK }, 362 { USB_DEVICE(0x13d3, 0x3459), .driver_info = BTUSB_REALTEK }, 363 { USB_DEVICE(0x13d3, 0x3494), .driver_info = BTUSB_REALTEK }, 364 365 /* Additional Realtek 8821AE Bluetooth devices */ 366 { USB_DEVICE(0x0b05, 0x17dc), .driver_info = BTUSB_REALTEK }, 367 { USB_DEVICE(0x13d3, 0x3414), .driver_info = BTUSB_REALTEK }, 368 { USB_DEVICE(0x13d3, 0x3458), .driver_info = BTUSB_REALTEK }, 369 { USB_DEVICE(0x13d3, 0x3461), .driver_info = BTUSB_REALTEK }, 370 { USB_DEVICE(0x13d3, 0x3462), .driver_info = BTUSB_REALTEK }, 371 372 /* Silicon Wave based devices */ 373 { USB_DEVICE(0x0c10, 0x0000), .driver_info = BTUSB_SWAVE }, 374 375 { } /* Terminating entry */ 376 }; 377 378 #define BTUSB_MAX_ISOC_FRAMES 10 379 380 #define BTUSB_INTR_RUNNING 0 381 #define BTUSB_BULK_RUNNING 1 382 #define BTUSB_ISOC_RUNNING 2 383 #define BTUSB_SUSPENDING 3 384 #define BTUSB_DID_ISO_RESUME 4 385 #define BTUSB_BOOTLOADER 5 386 #define BTUSB_DOWNLOADING 6 387 #define BTUSB_FIRMWARE_LOADED 7 388 #define BTUSB_FIRMWARE_FAILED 8 389 #define BTUSB_BOOTING 9 390 #define BTUSB_RESET_RESUME 10 391 #define BTUSB_DIAG_RUNNING 11 392 #define BTUSB_OOB_WAKE_ENABLED 12 393 394 struct btusb_data { 395 struct hci_dev *hdev; 396 struct usb_device *udev; 397 struct usb_interface *intf; 398 struct usb_interface *isoc; 399 struct usb_interface *diag; 400 unsigned isoc_ifnum; 401 402 unsigned long flags; 403 404 struct work_struct work; 405 struct work_struct waker; 406 407 struct usb_anchor deferred; 408 struct usb_anchor tx_anchor; 409 int tx_in_flight; 410 spinlock_t txlock; 411 412 struct usb_anchor intr_anchor; 413 struct usb_anchor bulk_anchor; 414 struct usb_anchor isoc_anchor; 415 struct usb_anchor diag_anchor; 416 spinlock_t rxlock; 417 418 struct sk_buff *evt_skb; 419 struct sk_buff *acl_skb; 420 struct sk_buff *sco_skb; 421 422 struct usb_endpoint_descriptor *intr_ep; 423 struct usb_endpoint_descriptor *bulk_tx_ep; 424 struct usb_endpoint_descriptor *bulk_rx_ep; 425 struct usb_endpoint_descriptor *isoc_tx_ep; 426 struct usb_endpoint_descriptor *isoc_rx_ep; 427 struct usb_endpoint_descriptor *diag_tx_ep; 428 struct usb_endpoint_descriptor *diag_rx_ep; 429 430 __u8 cmdreq_type; 431 __u8 cmdreq; 432 433 unsigned int sco_num; 434 int isoc_altsetting; 435 int suspend_count; 436 437 int (*recv_event)(struct hci_dev *hdev, struct sk_buff *skb); 438 int (*recv_bulk)(struct btusb_data *data, void *buffer, int count); 439 440 int (*setup_on_usb)(struct hci_dev *hdev); 441 442 int oob_wake_irq; /* irq for out-of-band wake-on-bt */ 443 }; 444 445 static inline void btusb_free_frags(struct btusb_data *data) 446 { 447 unsigned long flags; 448 449 spin_lock_irqsave(&data->rxlock, flags); 450 451 kfree_skb(data->evt_skb); 452 data->evt_skb = NULL; 453 454 kfree_skb(data->acl_skb); 455 data->acl_skb = NULL; 456 457 kfree_skb(data->sco_skb); 458 data->sco_skb = NULL; 459 460 spin_unlock_irqrestore(&data->rxlock, flags); 461 } 462 463 static int btusb_recv_intr(struct btusb_data *data, void *buffer, int count) 464 { 465 struct sk_buff *skb; 466 int err = 0; 467 468 spin_lock(&data->rxlock); 469 skb = data->evt_skb; 470 471 while (count) { 472 int len; 473 474 if (!skb) { 475 skb = bt_skb_alloc(HCI_MAX_EVENT_SIZE, GFP_ATOMIC); 476 if (!skb) { 477 err = -ENOMEM; 478 break; 479 } 480 481 hci_skb_pkt_type(skb) = HCI_EVENT_PKT; 482 hci_skb_expect(skb) = HCI_EVENT_HDR_SIZE; 483 } 484 485 len = min_t(uint, hci_skb_expect(skb), count); 486 skb_put_data(skb, buffer, len); 487 488 count -= len; 489 buffer += len; 490 hci_skb_expect(skb) -= len; 491 492 if (skb->len == HCI_EVENT_HDR_SIZE) { 493 /* Complete event header */ 494 hci_skb_expect(skb) = hci_event_hdr(skb)->plen; 495 496 if (skb_tailroom(skb) < hci_skb_expect(skb)) { 497 kfree_skb(skb); 498 skb = NULL; 499 500 err = -EILSEQ; 501 break; 502 } 503 } 504 505 if (!hci_skb_expect(skb)) { 506 /* Complete frame */ 507 data->recv_event(data->hdev, skb); 508 skb = NULL; 509 } 510 } 511 512 data->evt_skb = skb; 513 spin_unlock(&data->rxlock); 514 515 return err; 516 } 517 518 static int btusb_recv_bulk(struct btusb_data *data, void *buffer, int count) 519 { 520 struct sk_buff *skb; 521 int err = 0; 522 523 spin_lock(&data->rxlock); 524 skb = data->acl_skb; 525 526 while (count) { 527 int len; 528 529 if (!skb) { 530 skb = bt_skb_alloc(HCI_MAX_FRAME_SIZE, GFP_ATOMIC); 531 if (!skb) { 532 err = -ENOMEM; 533 break; 534 } 535 536 hci_skb_pkt_type(skb) = HCI_ACLDATA_PKT; 537 hci_skb_expect(skb) = HCI_ACL_HDR_SIZE; 538 } 539 540 len = min_t(uint, hci_skb_expect(skb), count); 541 skb_put_data(skb, buffer, len); 542 543 count -= len; 544 buffer += len; 545 hci_skb_expect(skb) -= len; 546 547 if (skb->len == HCI_ACL_HDR_SIZE) { 548 __le16 dlen = hci_acl_hdr(skb)->dlen; 549 550 /* Complete ACL header */ 551 hci_skb_expect(skb) = __le16_to_cpu(dlen); 552 553 if (skb_tailroom(skb) < hci_skb_expect(skb)) { 554 kfree_skb(skb); 555 skb = NULL; 556 557 err = -EILSEQ; 558 break; 559 } 560 } 561 562 if (!hci_skb_expect(skb)) { 563 /* Complete frame */ 564 hci_recv_frame(data->hdev, skb); 565 skb = NULL; 566 } 567 } 568 569 data->acl_skb = skb; 570 spin_unlock(&data->rxlock); 571 572 return err; 573 } 574 575 static int btusb_recv_isoc(struct btusb_data *data, void *buffer, int count) 576 { 577 struct sk_buff *skb; 578 int err = 0; 579 580 spin_lock(&data->rxlock); 581 skb = data->sco_skb; 582 583 while (count) { 584 int len; 585 586 if (!skb) { 587 skb = bt_skb_alloc(HCI_MAX_SCO_SIZE, GFP_ATOMIC); 588 if (!skb) { 589 err = -ENOMEM; 590 break; 591 } 592 593 hci_skb_pkt_type(skb) = HCI_SCODATA_PKT; 594 hci_skb_expect(skb) = HCI_SCO_HDR_SIZE; 595 } 596 597 len = min_t(uint, hci_skb_expect(skb), count); 598 skb_put_data(skb, buffer, len); 599 600 count -= len; 601 buffer += len; 602 hci_skb_expect(skb) -= len; 603 604 if (skb->len == HCI_SCO_HDR_SIZE) { 605 /* Complete SCO header */ 606 hci_skb_expect(skb) = hci_sco_hdr(skb)->dlen; 607 608 if (skb_tailroom(skb) < hci_skb_expect(skb)) { 609 kfree_skb(skb); 610 skb = NULL; 611 612 err = -EILSEQ; 613 break; 614 } 615 } 616 617 if (!hci_skb_expect(skb)) { 618 /* Complete frame */ 619 hci_recv_frame(data->hdev, skb); 620 skb = NULL; 621 } 622 } 623 624 data->sco_skb = skb; 625 spin_unlock(&data->rxlock); 626 627 return err; 628 } 629 630 static void btusb_intr_complete(struct urb *urb) 631 { 632 struct hci_dev *hdev = urb->context; 633 struct btusb_data *data = hci_get_drvdata(hdev); 634 int err; 635 636 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status, 637 urb->actual_length); 638 639 if (!test_bit(HCI_RUNNING, &hdev->flags)) 640 return; 641 642 if (urb->status == 0) { 643 hdev->stat.byte_rx += urb->actual_length; 644 645 if (btusb_recv_intr(data, urb->transfer_buffer, 646 urb->actual_length) < 0) { 647 bt_dev_err(hdev, "corrupted event packet"); 648 hdev->stat.err_rx++; 649 } 650 } else if (urb->status == -ENOENT) { 651 /* Avoid suspend failed when usb_kill_urb */ 652 return; 653 } 654 655 if (!test_bit(BTUSB_INTR_RUNNING, &data->flags)) 656 return; 657 658 usb_mark_last_busy(data->udev); 659 usb_anchor_urb(urb, &data->intr_anchor); 660 661 err = usb_submit_urb(urb, GFP_ATOMIC); 662 if (err < 0) { 663 /* -EPERM: urb is being killed; 664 * -ENODEV: device got disconnected 665 */ 666 if (err != -EPERM && err != -ENODEV) 667 bt_dev_err(hdev, "urb %p failed to resubmit (%d)", 668 urb, -err); 669 usb_unanchor_urb(urb); 670 } 671 } 672 673 static int btusb_submit_intr_urb(struct hci_dev *hdev, gfp_t mem_flags) 674 { 675 struct btusb_data *data = hci_get_drvdata(hdev); 676 struct urb *urb; 677 unsigned char *buf; 678 unsigned int pipe; 679 int err, size; 680 681 BT_DBG("%s", hdev->name); 682 683 if (!data->intr_ep) 684 return -ENODEV; 685 686 urb = usb_alloc_urb(0, mem_flags); 687 if (!urb) 688 return -ENOMEM; 689 690 size = le16_to_cpu(data->intr_ep->wMaxPacketSize); 691 692 buf = kmalloc(size, mem_flags); 693 if (!buf) { 694 usb_free_urb(urb); 695 return -ENOMEM; 696 } 697 698 pipe = usb_rcvintpipe(data->udev, data->intr_ep->bEndpointAddress); 699 700 usb_fill_int_urb(urb, data->udev, pipe, buf, size, 701 btusb_intr_complete, hdev, data->intr_ep->bInterval); 702 703 urb->transfer_flags |= URB_FREE_BUFFER; 704 705 usb_anchor_urb(urb, &data->intr_anchor); 706 707 err = usb_submit_urb(urb, mem_flags); 708 if (err < 0) { 709 if (err != -EPERM && err != -ENODEV) 710 bt_dev_err(hdev, "urb %p submission failed (%d)", 711 urb, -err); 712 usb_unanchor_urb(urb); 713 } 714 715 usb_free_urb(urb); 716 717 return err; 718 } 719 720 static void btusb_bulk_complete(struct urb *urb) 721 { 722 struct hci_dev *hdev = urb->context; 723 struct btusb_data *data = hci_get_drvdata(hdev); 724 int err; 725 726 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status, 727 urb->actual_length); 728 729 if (!test_bit(HCI_RUNNING, &hdev->flags)) 730 return; 731 732 if (urb->status == 0) { 733 hdev->stat.byte_rx += urb->actual_length; 734 735 if (data->recv_bulk(data, urb->transfer_buffer, 736 urb->actual_length) < 0) { 737 bt_dev_err(hdev, "corrupted ACL packet"); 738 hdev->stat.err_rx++; 739 } 740 } else if (urb->status == -ENOENT) { 741 /* Avoid suspend failed when usb_kill_urb */ 742 return; 743 } 744 745 if (!test_bit(BTUSB_BULK_RUNNING, &data->flags)) 746 return; 747 748 usb_anchor_urb(urb, &data->bulk_anchor); 749 usb_mark_last_busy(data->udev); 750 751 err = usb_submit_urb(urb, GFP_ATOMIC); 752 if (err < 0) { 753 /* -EPERM: urb is being killed; 754 * -ENODEV: device got disconnected 755 */ 756 if (err != -EPERM && err != -ENODEV) 757 bt_dev_err(hdev, "urb %p failed to resubmit (%d)", 758 urb, -err); 759 usb_unanchor_urb(urb); 760 } 761 } 762 763 static int btusb_submit_bulk_urb(struct hci_dev *hdev, gfp_t mem_flags) 764 { 765 struct btusb_data *data = hci_get_drvdata(hdev); 766 struct urb *urb; 767 unsigned char *buf; 768 unsigned int pipe; 769 int err, size = HCI_MAX_FRAME_SIZE; 770 771 BT_DBG("%s", hdev->name); 772 773 if (!data->bulk_rx_ep) 774 return -ENODEV; 775 776 urb = usb_alloc_urb(0, mem_flags); 777 if (!urb) 778 return -ENOMEM; 779 780 buf = kmalloc(size, mem_flags); 781 if (!buf) { 782 usb_free_urb(urb); 783 return -ENOMEM; 784 } 785 786 pipe = usb_rcvbulkpipe(data->udev, data->bulk_rx_ep->bEndpointAddress); 787 788 usb_fill_bulk_urb(urb, data->udev, pipe, buf, size, 789 btusb_bulk_complete, hdev); 790 791 urb->transfer_flags |= URB_FREE_BUFFER; 792 793 usb_mark_last_busy(data->udev); 794 usb_anchor_urb(urb, &data->bulk_anchor); 795 796 err = usb_submit_urb(urb, mem_flags); 797 if (err < 0) { 798 if (err != -EPERM && err != -ENODEV) 799 bt_dev_err(hdev, "urb %p submission failed (%d)", 800 urb, -err); 801 usb_unanchor_urb(urb); 802 } 803 804 usb_free_urb(urb); 805 806 return err; 807 } 808 809 static void btusb_isoc_complete(struct urb *urb) 810 { 811 struct hci_dev *hdev = urb->context; 812 struct btusb_data *data = hci_get_drvdata(hdev); 813 int i, err; 814 815 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status, 816 urb->actual_length); 817 818 if (!test_bit(HCI_RUNNING, &hdev->flags)) 819 return; 820 821 if (urb->status == 0) { 822 for (i = 0; i < urb->number_of_packets; i++) { 823 unsigned int offset = urb->iso_frame_desc[i].offset; 824 unsigned int length = urb->iso_frame_desc[i].actual_length; 825 826 if (urb->iso_frame_desc[i].status) 827 continue; 828 829 hdev->stat.byte_rx += length; 830 831 if (btusb_recv_isoc(data, urb->transfer_buffer + offset, 832 length) < 0) { 833 bt_dev_err(hdev, "corrupted SCO packet"); 834 hdev->stat.err_rx++; 835 } 836 } 837 } else if (urb->status == -ENOENT) { 838 /* Avoid suspend failed when usb_kill_urb */ 839 return; 840 } 841 842 if (!test_bit(BTUSB_ISOC_RUNNING, &data->flags)) 843 return; 844 845 usb_anchor_urb(urb, &data->isoc_anchor); 846 847 err = usb_submit_urb(urb, GFP_ATOMIC); 848 if (err < 0) { 849 /* -EPERM: urb is being killed; 850 * -ENODEV: device got disconnected 851 */ 852 if (err != -EPERM && err != -ENODEV) 853 bt_dev_err(hdev, "urb %p failed to resubmit (%d)", 854 urb, -err); 855 usb_unanchor_urb(urb); 856 } 857 } 858 859 static inline void __fill_isoc_descriptor(struct urb *urb, int len, int mtu) 860 { 861 int i, offset = 0; 862 863 BT_DBG("len %d mtu %d", len, mtu); 864 865 for (i = 0; i < BTUSB_MAX_ISOC_FRAMES && len >= mtu; 866 i++, offset += mtu, len -= mtu) { 867 urb->iso_frame_desc[i].offset = offset; 868 urb->iso_frame_desc[i].length = mtu; 869 } 870 871 if (len && i < BTUSB_MAX_ISOC_FRAMES) { 872 urb->iso_frame_desc[i].offset = offset; 873 urb->iso_frame_desc[i].length = len; 874 i++; 875 } 876 877 urb->number_of_packets = i; 878 } 879 880 static int btusb_submit_isoc_urb(struct hci_dev *hdev, gfp_t mem_flags) 881 { 882 struct btusb_data *data = hci_get_drvdata(hdev); 883 struct urb *urb; 884 unsigned char *buf; 885 unsigned int pipe; 886 int err, size; 887 888 BT_DBG("%s", hdev->name); 889 890 if (!data->isoc_rx_ep) 891 return -ENODEV; 892 893 urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, mem_flags); 894 if (!urb) 895 return -ENOMEM; 896 897 size = le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize) * 898 BTUSB_MAX_ISOC_FRAMES; 899 900 buf = kmalloc(size, mem_flags); 901 if (!buf) { 902 usb_free_urb(urb); 903 return -ENOMEM; 904 } 905 906 pipe = usb_rcvisocpipe(data->udev, data->isoc_rx_ep->bEndpointAddress); 907 908 usb_fill_int_urb(urb, data->udev, pipe, buf, size, btusb_isoc_complete, 909 hdev, data->isoc_rx_ep->bInterval); 910 911 urb->transfer_flags = URB_FREE_BUFFER | URB_ISO_ASAP; 912 913 __fill_isoc_descriptor(urb, size, 914 le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize)); 915 916 usb_anchor_urb(urb, &data->isoc_anchor); 917 918 err = usb_submit_urb(urb, mem_flags); 919 if (err < 0) { 920 if (err != -EPERM && err != -ENODEV) 921 bt_dev_err(hdev, "urb %p submission failed (%d)", 922 urb, -err); 923 usb_unanchor_urb(urb); 924 } 925 926 usb_free_urb(urb); 927 928 return err; 929 } 930 931 static void btusb_diag_complete(struct urb *urb) 932 { 933 struct hci_dev *hdev = urb->context; 934 struct btusb_data *data = hci_get_drvdata(hdev); 935 int err; 936 937 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status, 938 urb->actual_length); 939 940 if (urb->status == 0) { 941 struct sk_buff *skb; 942 943 skb = bt_skb_alloc(urb->actual_length, GFP_ATOMIC); 944 if (skb) { 945 skb_put_data(skb, urb->transfer_buffer, 946 urb->actual_length); 947 hci_recv_diag(hdev, skb); 948 } 949 } else if (urb->status == -ENOENT) { 950 /* Avoid suspend failed when usb_kill_urb */ 951 return; 952 } 953 954 if (!test_bit(BTUSB_DIAG_RUNNING, &data->flags)) 955 return; 956 957 usb_anchor_urb(urb, &data->diag_anchor); 958 usb_mark_last_busy(data->udev); 959 960 err = usb_submit_urb(urb, GFP_ATOMIC); 961 if (err < 0) { 962 /* -EPERM: urb is being killed; 963 * -ENODEV: device got disconnected 964 */ 965 if (err != -EPERM && err != -ENODEV) 966 bt_dev_err(hdev, "urb %p failed to resubmit (%d)", 967 urb, -err); 968 usb_unanchor_urb(urb); 969 } 970 } 971 972 static int btusb_submit_diag_urb(struct hci_dev *hdev, gfp_t mem_flags) 973 { 974 struct btusb_data *data = hci_get_drvdata(hdev); 975 struct urb *urb; 976 unsigned char *buf; 977 unsigned int pipe; 978 int err, size = HCI_MAX_FRAME_SIZE; 979 980 BT_DBG("%s", hdev->name); 981 982 if (!data->diag_rx_ep) 983 return -ENODEV; 984 985 urb = usb_alloc_urb(0, mem_flags); 986 if (!urb) 987 return -ENOMEM; 988 989 buf = kmalloc(size, mem_flags); 990 if (!buf) { 991 usb_free_urb(urb); 992 return -ENOMEM; 993 } 994 995 pipe = usb_rcvbulkpipe(data->udev, data->diag_rx_ep->bEndpointAddress); 996 997 usb_fill_bulk_urb(urb, data->udev, pipe, buf, size, 998 btusb_diag_complete, hdev); 999 1000 urb->transfer_flags |= URB_FREE_BUFFER; 1001 1002 usb_mark_last_busy(data->udev); 1003 usb_anchor_urb(urb, &data->diag_anchor); 1004 1005 err = usb_submit_urb(urb, mem_flags); 1006 if (err < 0) { 1007 if (err != -EPERM && err != -ENODEV) 1008 bt_dev_err(hdev, "urb %p submission failed (%d)", 1009 urb, -err); 1010 usb_unanchor_urb(urb); 1011 } 1012 1013 usb_free_urb(urb); 1014 1015 return err; 1016 } 1017 1018 static void btusb_tx_complete(struct urb *urb) 1019 { 1020 struct sk_buff *skb = urb->context; 1021 struct hci_dev *hdev = (struct hci_dev *)skb->dev; 1022 struct btusb_data *data = hci_get_drvdata(hdev); 1023 1024 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status, 1025 urb->actual_length); 1026 1027 if (!test_bit(HCI_RUNNING, &hdev->flags)) 1028 goto done; 1029 1030 if (!urb->status) 1031 hdev->stat.byte_tx += urb->transfer_buffer_length; 1032 else 1033 hdev->stat.err_tx++; 1034 1035 done: 1036 spin_lock(&data->txlock); 1037 data->tx_in_flight--; 1038 spin_unlock(&data->txlock); 1039 1040 kfree(urb->setup_packet); 1041 1042 kfree_skb(skb); 1043 } 1044 1045 static void btusb_isoc_tx_complete(struct urb *urb) 1046 { 1047 struct sk_buff *skb = urb->context; 1048 struct hci_dev *hdev = (struct hci_dev *)skb->dev; 1049 1050 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status, 1051 urb->actual_length); 1052 1053 if (!test_bit(HCI_RUNNING, &hdev->flags)) 1054 goto done; 1055 1056 if (!urb->status) 1057 hdev->stat.byte_tx += urb->transfer_buffer_length; 1058 else 1059 hdev->stat.err_tx++; 1060 1061 done: 1062 kfree(urb->setup_packet); 1063 1064 kfree_skb(skb); 1065 } 1066 1067 static int btusb_open(struct hci_dev *hdev) 1068 { 1069 struct btusb_data *data = hci_get_drvdata(hdev); 1070 int err; 1071 1072 BT_DBG("%s", hdev->name); 1073 1074 err = usb_autopm_get_interface(data->intf); 1075 if (err < 0) 1076 return err; 1077 1078 /* Patching USB firmware files prior to starting any URBs of HCI path 1079 * It is more safe to use USB bulk channel for downloading USB patch 1080 */ 1081 if (data->setup_on_usb) { 1082 err = data->setup_on_usb(hdev); 1083 if (err < 0) 1084 return err; 1085 } 1086 1087 data->intf->needs_remote_wakeup = 1; 1088 /* device specific wakeup source enabled and required for USB 1089 * remote wakeup while host is suspended 1090 */ 1091 device_wakeup_enable(&data->udev->dev); 1092 1093 if (test_and_set_bit(BTUSB_INTR_RUNNING, &data->flags)) 1094 goto done; 1095 1096 err = btusb_submit_intr_urb(hdev, GFP_KERNEL); 1097 if (err < 0) 1098 goto failed; 1099 1100 err = btusb_submit_bulk_urb(hdev, GFP_KERNEL); 1101 if (err < 0) { 1102 usb_kill_anchored_urbs(&data->intr_anchor); 1103 goto failed; 1104 } 1105 1106 set_bit(BTUSB_BULK_RUNNING, &data->flags); 1107 btusb_submit_bulk_urb(hdev, GFP_KERNEL); 1108 1109 if (data->diag) { 1110 if (!btusb_submit_diag_urb(hdev, GFP_KERNEL)) 1111 set_bit(BTUSB_DIAG_RUNNING, &data->flags); 1112 } 1113 1114 done: 1115 usb_autopm_put_interface(data->intf); 1116 return 0; 1117 1118 failed: 1119 clear_bit(BTUSB_INTR_RUNNING, &data->flags); 1120 usb_autopm_put_interface(data->intf); 1121 return err; 1122 } 1123 1124 static void btusb_stop_traffic(struct btusb_data *data) 1125 { 1126 usb_kill_anchored_urbs(&data->intr_anchor); 1127 usb_kill_anchored_urbs(&data->bulk_anchor); 1128 usb_kill_anchored_urbs(&data->isoc_anchor); 1129 usb_kill_anchored_urbs(&data->diag_anchor); 1130 } 1131 1132 static int btusb_close(struct hci_dev *hdev) 1133 { 1134 struct btusb_data *data = hci_get_drvdata(hdev); 1135 int err; 1136 1137 BT_DBG("%s", hdev->name); 1138 1139 cancel_work_sync(&data->work); 1140 cancel_work_sync(&data->waker); 1141 1142 clear_bit(BTUSB_ISOC_RUNNING, &data->flags); 1143 clear_bit(BTUSB_BULK_RUNNING, &data->flags); 1144 clear_bit(BTUSB_INTR_RUNNING, &data->flags); 1145 clear_bit(BTUSB_DIAG_RUNNING, &data->flags); 1146 1147 btusb_stop_traffic(data); 1148 btusb_free_frags(data); 1149 1150 err = usb_autopm_get_interface(data->intf); 1151 if (err < 0) 1152 goto failed; 1153 1154 data->intf->needs_remote_wakeup = 0; 1155 device_wakeup_disable(&data->udev->dev); 1156 usb_autopm_put_interface(data->intf); 1157 1158 failed: 1159 usb_scuttle_anchored_urbs(&data->deferred); 1160 return 0; 1161 } 1162 1163 static int btusb_flush(struct hci_dev *hdev) 1164 { 1165 struct btusb_data *data = hci_get_drvdata(hdev); 1166 1167 BT_DBG("%s", hdev->name); 1168 1169 usb_kill_anchored_urbs(&data->tx_anchor); 1170 btusb_free_frags(data); 1171 1172 return 0; 1173 } 1174 1175 static struct urb *alloc_ctrl_urb(struct hci_dev *hdev, struct sk_buff *skb) 1176 { 1177 struct btusb_data *data = hci_get_drvdata(hdev); 1178 struct usb_ctrlrequest *dr; 1179 struct urb *urb; 1180 unsigned int pipe; 1181 1182 urb = usb_alloc_urb(0, GFP_KERNEL); 1183 if (!urb) 1184 return ERR_PTR(-ENOMEM); 1185 1186 dr = kmalloc(sizeof(*dr), GFP_KERNEL); 1187 if (!dr) { 1188 usb_free_urb(urb); 1189 return ERR_PTR(-ENOMEM); 1190 } 1191 1192 dr->bRequestType = data->cmdreq_type; 1193 dr->bRequest = data->cmdreq; 1194 dr->wIndex = 0; 1195 dr->wValue = 0; 1196 dr->wLength = __cpu_to_le16(skb->len); 1197 1198 pipe = usb_sndctrlpipe(data->udev, 0x00); 1199 1200 usb_fill_control_urb(urb, data->udev, pipe, (void *)dr, 1201 skb->data, skb->len, btusb_tx_complete, skb); 1202 1203 skb->dev = (void *)hdev; 1204 1205 return urb; 1206 } 1207 1208 static struct urb *alloc_bulk_urb(struct hci_dev *hdev, struct sk_buff *skb) 1209 { 1210 struct btusb_data *data = hci_get_drvdata(hdev); 1211 struct urb *urb; 1212 unsigned int pipe; 1213 1214 if (!data->bulk_tx_ep) 1215 return ERR_PTR(-ENODEV); 1216 1217 urb = usb_alloc_urb(0, GFP_KERNEL); 1218 if (!urb) 1219 return ERR_PTR(-ENOMEM); 1220 1221 pipe = usb_sndbulkpipe(data->udev, data->bulk_tx_ep->bEndpointAddress); 1222 1223 usb_fill_bulk_urb(urb, data->udev, pipe, 1224 skb->data, skb->len, btusb_tx_complete, skb); 1225 1226 skb->dev = (void *)hdev; 1227 1228 return urb; 1229 } 1230 1231 static struct urb *alloc_isoc_urb(struct hci_dev *hdev, struct sk_buff *skb) 1232 { 1233 struct btusb_data *data = hci_get_drvdata(hdev); 1234 struct urb *urb; 1235 unsigned int pipe; 1236 1237 if (!data->isoc_tx_ep) 1238 return ERR_PTR(-ENODEV); 1239 1240 urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, GFP_KERNEL); 1241 if (!urb) 1242 return ERR_PTR(-ENOMEM); 1243 1244 pipe = usb_sndisocpipe(data->udev, data->isoc_tx_ep->bEndpointAddress); 1245 1246 usb_fill_int_urb(urb, data->udev, pipe, 1247 skb->data, skb->len, btusb_isoc_tx_complete, 1248 skb, data->isoc_tx_ep->bInterval); 1249 1250 urb->transfer_flags = URB_ISO_ASAP; 1251 1252 __fill_isoc_descriptor(urb, skb->len, 1253 le16_to_cpu(data->isoc_tx_ep->wMaxPacketSize)); 1254 1255 skb->dev = (void *)hdev; 1256 1257 return urb; 1258 } 1259 1260 static int submit_tx_urb(struct hci_dev *hdev, struct urb *urb) 1261 { 1262 struct btusb_data *data = hci_get_drvdata(hdev); 1263 int err; 1264 1265 usb_anchor_urb(urb, &data->tx_anchor); 1266 1267 err = usb_submit_urb(urb, GFP_KERNEL); 1268 if (err < 0) { 1269 if (err != -EPERM && err != -ENODEV) 1270 bt_dev_err(hdev, "urb %p submission failed (%d)", 1271 urb, -err); 1272 kfree(urb->setup_packet); 1273 usb_unanchor_urb(urb); 1274 } else { 1275 usb_mark_last_busy(data->udev); 1276 } 1277 1278 usb_free_urb(urb); 1279 return err; 1280 } 1281 1282 static int submit_or_queue_tx_urb(struct hci_dev *hdev, struct urb *urb) 1283 { 1284 struct btusb_data *data = hci_get_drvdata(hdev); 1285 unsigned long flags; 1286 bool suspending; 1287 1288 spin_lock_irqsave(&data->txlock, flags); 1289 suspending = test_bit(BTUSB_SUSPENDING, &data->flags); 1290 if (!suspending) 1291 data->tx_in_flight++; 1292 spin_unlock_irqrestore(&data->txlock, flags); 1293 1294 if (!suspending) 1295 return submit_tx_urb(hdev, urb); 1296 1297 usb_anchor_urb(urb, &data->deferred); 1298 schedule_work(&data->waker); 1299 1300 usb_free_urb(urb); 1301 return 0; 1302 } 1303 1304 static int btusb_send_frame(struct hci_dev *hdev, struct sk_buff *skb) 1305 { 1306 struct urb *urb; 1307 1308 BT_DBG("%s", hdev->name); 1309 1310 switch (hci_skb_pkt_type(skb)) { 1311 case HCI_COMMAND_PKT: 1312 urb = alloc_ctrl_urb(hdev, skb); 1313 if (IS_ERR(urb)) 1314 return PTR_ERR(urb); 1315 1316 hdev->stat.cmd_tx++; 1317 return submit_or_queue_tx_urb(hdev, urb); 1318 1319 case HCI_ACLDATA_PKT: 1320 urb = alloc_bulk_urb(hdev, skb); 1321 if (IS_ERR(urb)) 1322 return PTR_ERR(urb); 1323 1324 hdev->stat.acl_tx++; 1325 return submit_or_queue_tx_urb(hdev, urb); 1326 1327 case HCI_SCODATA_PKT: 1328 if (hci_conn_num(hdev, SCO_LINK) < 1) 1329 return -ENODEV; 1330 1331 urb = alloc_isoc_urb(hdev, skb); 1332 if (IS_ERR(urb)) 1333 return PTR_ERR(urb); 1334 1335 hdev->stat.sco_tx++; 1336 return submit_tx_urb(hdev, urb); 1337 } 1338 1339 return -EILSEQ; 1340 } 1341 1342 static void btusb_notify(struct hci_dev *hdev, unsigned int evt) 1343 { 1344 struct btusb_data *data = hci_get_drvdata(hdev); 1345 1346 BT_DBG("%s evt %d", hdev->name, evt); 1347 1348 if (hci_conn_num(hdev, SCO_LINK) != data->sco_num) { 1349 data->sco_num = hci_conn_num(hdev, SCO_LINK); 1350 schedule_work(&data->work); 1351 } 1352 } 1353 1354 static inline int __set_isoc_interface(struct hci_dev *hdev, int altsetting) 1355 { 1356 struct btusb_data *data = hci_get_drvdata(hdev); 1357 struct usb_interface *intf = data->isoc; 1358 struct usb_endpoint_descriptor *ep_desc; 1359 int i, err; 1360 1361 if (!data->isoc) 1362 return -ENODEV; 1363 1364 err = usb_set_interface(data->udev, data->isoc_ifnum, altsetting); 1365 if (err < 0) { 1366 bt_dev_err(hdev, "setting interface failed (%d)", -err); 1367 return err; 1368 } 1369 1370 data->isoc_altsetting = altsetting; 1371 1372 data->isoc_tx_ep = NULL; 1373 data->isoc_rx_ep = NULL; 1374 1375 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) { 1376 ep_desc = &intf->cur_altsetting->endpoint[i].desc; 1377 1378 if (!data->isoc_tx_ep && usb_endpoint_is_isoc_out(ep_desc)) { 1379 data->isoc_tx_ep = ep_desc; 1380 continue; 1381 } 1382 1383 if (!data->isoc_rx_ep && usb_endpoint_is_isoc_in(ep_desc)) { 1384 data->isoc_rx_ep = ep_desc; 1385 continue; 1386 } 1387 } 1388 1389 if (!data->isoc_tx_ep || !data->isoc_rx_ep) { 1390 bt_dev_err(hdev, "invalid SCO descriptors"); 1391 return -ENODEV; 1392 } 1393 1394 return 0; 1395 } 1396 1397 static void btusb_work(struct work_struct *work) 1398 { 1399 struct btusb_data *data = container_of(work, struct btusb_data, work); 1400 struct hci_dev *hdev = data->hdev; 1401 int new_alts; 1402 int err; 1403 1404 if (data->sco_num > 0) { 1405 if (!test_bit(BTUSB_DID_ISO_RESUME, &data->flags)) { 1406 err = usb_autopm_get_interface(data->isoc ? data->isoc : data->intf); 1407 if (err < 0) { 1408 clear_bit(BTUSB_ISOC_RUNNING, &data->flags); 1409 usb_kill_anchored_urbs(&data->isoc_anchor); 1410 return; 1411 } 1412 1413 set_bit(BTUSB_DID_ISO_RESUME, &data->flags); 1414 } 1415 1416 if (hdev->voice_setting & 0x0020) { 1417 static const int alts[3] = { 2, 4, 5 }; 1418 1419 new_alts = alts[data->sco_num - 1]; 1420 } else { 1421 new_alts = data->sco_num; 1422 } 1423 1424 if (data->isoc_altsetting != new_alts) { 1425 unsigned long flags; 1426 1427 clear_bit(BTUSB_ISOC_RUNNING, &data->flags); 1428 usb_kill_anchored_urbs(&data->isoc_anchor); 1429 1430 /* When isochronous alternate setting needs to be 1431 * changed, because SCO connection has been added 1432 * or removed, a packet fragment may be left in the 1433 * reassembling state. This could lead to wrongly 1434 * assembled fragments. 1435 * 1436 * Clear outstanding fragment when selecting a new 1437 * alternate setting. 1438 */ 1439 spin_lock_irqsave(&data->rxlock, flags); 1440 kfree_skb(data->sco_skb); 1441 data->sco_skb = NULL; 1442 spin_unlock_irqrestore(&data->rxlock, flags); 1443 1444 if (__set_isoc_interface(hdev, new_alts) < 0) 1445 return; 1446 } 1447 1448 if (!test_and_set_bit(BTUSB_ISOC_RUNNING, &data->flags)) { 1449 if (btusb_submit_isoc_urb(hdev, GFP_KERNEL) < 0) 1450 clear_bit(BTUSB_ISOC_RUNNING, &data->flags); 1451 else 1452 btusb_submit_isoc_urb(hdev, GFP_KERNEL); 1453 } 1454 } else { 1455 clear_bit(BTUSB_ISOC_RUNNING, &data->flags); 1456 usb_kill_anchored_urbs(&data->isoc_anchor); 1457 1458 __set_isoc_interface(hdev, 0); 1459 if (test_and_clear_bit(BTUSB_DID_ISO_RESUME, &data->flags)) 1460 usb_autopm_put_interface(data->isoc ? data->isoc : data->intf); 1461 } 1462 } 1463 1464 static void btusb_waker(struct work_struct *work) 1465 { 1466 struct btusb_data *data = container_of(work, struct btusb_data, waker); 1467 int err; 1468 1469 err = usb_autopm_get_interface(data->intf); 1470 if (err < 0) 1471 return; 1472 1473 usb_autopm_put_interface(data->intf); 1474 } 1475 1476 static int btusb_setup_bcm92035(struct hci_dev *hdev) 1477 { 1478 struct sk_buff *skb; 1479 u8 val = 0x00; 1480 1481 BT_DBG("%s", hdev->name); 1482 1483 skb = __hci_cmd_sync(hdev, 0xfc3b, 1, &val, HCI_INIT_TIMEOUT); 1484 if (IS_ERR(skb)) 1485 bt_dev_err(hdev, "BCM92035 command failed (%ld)", PTR_ERR(skb)); 1486 else 1487 kfree_skb(skb); 1488 1489 return 0; 1490 } 1491 1492 static int btusb_setup_csr(struct hci_dev *hdev) 1493 { 1494 struct hci_rp_read_local_version *rp; 1495 struct sk_buff *skb; 1496 1497 BT_DBG("%s", hdev->name); 1498 1499 skb = __hci_cmd_sync(hdev, HCI_OP_READ_LOCAL_VERSION, 0, NULL, 1500 HCI_INIT_TIMEOUT); 1501 if (IS_ERR(skb)) { 1502 int err = PTR_ERR(skb); 1503 bt_dev_err(hdev, "CSR: Local version failed (%d)", err); 1504 return err; 1505 } 1506 1507 if (skb->len != sizeof(struct hci_rp_read_local_version)) { 1508 bt_dev_err(hdev, "CSR: Local version length mismatch"); 1509 kfree_skb(skb); 1510 return -EIO; 1511 } 1512 1513 rp = (struct hci_rp_read_local_version *)skb->data; 1514 1515 /* Detect controllers which aren't real CSR ones. */ 1516 if (le16_to_cpu(rp->manufacturer) != 10 || 1517 le16_to_cpu(rp->lmp_subver) == 0x0c5c) { 1518 /* Clear the reset quirk since this is not an actual 1519 * early Bluetooth 1.1 device from CSR. 1520 */ 1521 clear_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks); 1522 1523 /* These fake CSR controllers have all a broken 1524 * stored link key handling and so just disable it. 1525 */ 1526 set_bit(HCI_QUIRK_BROKEN_STORED_LINK_KEY, &hdev->quirks); 1527 } 1528 1529 kfree_skb(skb); 1530 1531 return 0; 1532 } 1533 1534 static const struct firmware *btusb_setup_intel_get_fw(struct hci_dev *hdev, 1535 struct intel_version *ver) 1536 { 1537 const struct firmware *fw; 1538 char fwname[64]; 1539 int ret; 1540 1541 snprintf(fwname, sizeof(fwname), 1542 "intel/ibt-hw-%x.%x.%x-fw-%x.%x.%x.%x.%x.bseq", 1543 ver->hw_platform, ver->hw_variant, ver->hw_revision, 1544 ver->fw_variant, ver->fw_revision, ver->fw_build_num, 1545 ver->fw_build_ww, ver->fw_build_yy); 1546 1547 ret = request_firmware(&fw, fwname, &hdev->dev); 1548 if (ret < 0) { 1549 if (ret == -EINVAL) { 1550 BT_ERR("%s Intel firmware file request failed (%d)", 1551 hdev->name, ret); 1552 return NULL; 1553 } 1554 1555 BT_ERR("%s failed to open Intel firmware file: %s(%d)", 1556 hdev->name, fwname, ret); 1557 1558 /* If the correct firmware patch file is not found, use the 1559 * default firmware patch file instead 1560 */ 1561 snprintf(fwname, sizeof(fwname), "intel/ibt-hw-%x.%x.bseq", 1562 ver->hw_platform, ver->hw_variant); 1563 if (request_firmware(&fw, fwname, &hdev->dev) < 0) { 1564 BT_ERR("%s failed to open default Intel fw file: %s", 1565 hdev->name, fwname); 1566 return NULL; 1567 } 1568 } 1569 1570 bt_dev_info(hdev, "Intel Bluetooth firmware file: %s", fwname); 1571 1572 return fw; 1573 } 1574 1575 static int btusb_setup_intel_patching(struct hci_dev *hdev, 1576 const struct firmware *fw, 1577 const u8 **fw_ptr, int *disable_patch) 1578 { 1579 struct sk_buff *skb; 1580 struct hci_command_hdr *cmd; 1581 const u8 *cmd_param; 1582 struct hci_event_hdr *evt = NULL; 1583 const u8 *evt_param = NULL; 1584 int remain = fw->size - (*fw_ptr - fw->data); 1585 1586 /* The first byte indicates the types of the patch command or event. 1587 * 0x01 means HCI command and 0x02 is HCI event. If the first bytes 1588 * in the current firmware buffer doesn't start with 0x01 or 1589 * the size of remain buffer is smaller than HCI command header, 1590 * the firmware file is corrupted and it should stop the patching 1591 * process. 1592 */ 1593 if (remain > HCI_COMMAND_HDR_SIZE && *fw_ptr[0] != 0x01) { 1594 BT_ERR("%s Intel fw corrupted: invalid cmd read", hdev->name); 1595 return -EINVAL; 1596 } 1597 (*fw_ptr)++; 1598 remain--; 1599 1600 cmd = (struct hci_command_hdr *)(*fw_ptr); 1601 *fw_ptr += sizeof(*cmd); 1602 remain -= sizeof(*cmd); 1603 1604 /* Ensure that the remain firmware data is long enough than the length 1605 * of command parameter. If not, the firmware file is corrupted. 1606 */ 1607 if (remain < cmd->plen) { 1608 BT_ERR("%s Intel fw corrupted: invalid cmd len", hdev->name); 1609 return -EFAULT; 1610 } 1611 1612 /* If there is a command that loads a patch in the firmware 1613 * file, then enable the patch upon success, otherwise just 1614 * disable the manufacturer mode, for example patch activation 1615 * is not required when the default firmware patch file is used 1616 * because there are no patch data to load. 1617 */ 1618 if (*disable_patch && le16_to_cpu(cmd->opcode) == 0xfc8e) 1619 *disable_patch = 0; 1620 1621 cmd_param = *fw_ptr; 1622 *fw_ptr += cmd->plen; 1623 remain -= cmd->plen; 1624 1625 /* This reads the expected events when the above command is sent to the 1626 * device. Some vendor commands expects more than one events, for 1627 * example command status event followed by vendor specific event. 1628 * For this case, it only keeps the last expected event. so the command 1629 * can be sent with __hci_cmd_sync_ev() which returns the sk_buff of 1630 * last expected event. 1631 */ 1632 while (remain > HCI_EVENT_HDR_SIZE && *fw_ptr[0] == 0x02) { 1633 (*fw_ptr)++; 1634 remain--; 1635 1636 evt = (struct hci_event_hdr *)(*fw_ptr); 1637 *fw_ptr += sizeof(*evt); 1638 remain -= sizeof(*evt); 1639 1640 if (remain < evt->plen) { 1641 BT_ERR("%s Intel fw corrupted: invalid evt len", 1642 hdev->name); 1643 return -EFAULT; 1644 } 1645 1646 evt_param = *fw_ptr; 1647 *fw_ptr += evt->plen; 1648 remain -= evt->plen; 1649 } 1650 1651 /* Every HCI commands in the firmware file has its correspond event. 1652 * If event is not found or remain is smaller than zero, the firmware 1653 * file is corrupted. 1654 */ 1655 if (!evt || !evt_param || remain < 0) { 1656 BT_ERR("%s Intel fw corrupted: invalid evt read", hdev->name); 1657 return -EFAULT; 1658 } 1659 1660 skb = __hci_cmd_sync_ev(hdev, le16_to_cpu(cmd->opcode), cmd->plen, 1661 cmd_param, evt->evt, HCI_INIT_TIMEOUT); 1662 if (IS_ERR(skb)) { 1663 BT_ERR("%s sending Intel patch command (0x%4.4x) failed (%ld)", 1664 hdev->name, cmd->opcode, PTR_ERR(skb)); 1665 return PTR_ERR(skb); 1666 } 1667 1668 /* It ensures that the returned event matches the event data read from 1669 * the firmware file. At fist, it checks the length and then 1670 * the contents of the event. 1671 */ 1672 if (skb->len != evt->plen) { 1673 BT_ERR("%s mismatch event length (opcode 0x%4.4x)", hdev->name, 1674 le16_to_cpu(cmd->opcode)); 1675 kfree_skb(skb); 1676 return -EFAULT; 1677 } 1678 1679 if (memcmp(skb->data, evt_param, evt->plen)) { 1680 BT_ERR("%s mismatch event parameter (opcode 0x%4.4x)", 1681 hdev->name, le16_to_cpu(cmd->opcode)); 1682 kfree_skb(skb); 1683 return -EFAULT; 1684 } 1685 kfree_skb(skb); 1686 1687 return 0; 1688 } 1689 1690 static int btusb_setup_intel(struct hci_dev *hdev) 1691 { 1692 struct sk_buff *skb; 1693 const struct firmware *fw; 1694 const u8 *fw_ptr; 1695 int disable_patch, err; 1696 struct intel_version ver; 1697 1698 BT_DBG("%s", hdev->name); 1699 1700 /* The controller has a bug with the first HCI command sent to it 1701 * returning number of completed commands as zero. This would stall the 1702 * command processing in the Bluetooth core. 1703 * 1704 * As a workaround, send HCI Reset command first which will reset the 1705 * number of completed commands and allow normal command processing 1706 * from now on. 1707 */ 1708 skb = __hci_cmd_sync(hdev, HCI_OP_RESET, 0, NULL, HCI_INIT_TIMEOUT); 1709 if (IS_ERR(skb)) { 1710 BT_ERR("%s sending initial HCI reset command failed (%ld)", 1711 hdev->name, PTR_ERR(skb)); 1712 return PTR_ERR(skb); 1713 } 1714 kfree_skb(skb); 1715 1716 /* Read Intel specific controller version first to allow selection of 1717 * which firmware file to load. 1718 * 1719 * The returned information are hardware variant and revision plus 1720 * firmware variant, revision and build number. 1721 */ 1722 err = btintel_read_version(hdev, &ver); 1723 if (err) 1724 return err; 1725 1726 bt_dev_info(hdev, "read Intel version: %02x%02x%02x%02x%02x%02x%02x%02x%02x", 1727 ver.hw_platform, ver.hw_variant, ver.hw_revision, 1728 ver.fw_variant, ver.fw_revision, ver.fw_build_num, 1729 ver.fw_build_ww, ver.fw_build_yy, ver.fw_patch_num); 1730 1731 /* fw_patch_num indicates the version of patch the device currently 1732 * have. If there is no patch data in the device, it is always 0x00. 1733 * So, if it is other than 0x00, no need to patch the device again. 1734 */ 1735 if (ver.fw_patch_num) { 1736 bt_dev_info(hdev, "Intel device is already patched. " 1737 "patch num: %02x", ver.fw_patch_num); 1738 goto complete; 1739 } 1740 1741 /* Opens the firmware patch file based on the firmware version read 1742 * from the controller. If it fails to open the matching firmware 1743 * patch file, it tries to open the default firmware patch file. 1744 * If no patch file is found, allow the device to operate without 1745 * a patch. 1746 */ 1747 fw = btusb_setup_intel_get_fw(hdev, &ver); 1748 if (!fw) 1749 goto complete; 1750 fw_ptr = fw->data; 1751 1752 /* Enable the manufacturer mode of the controller. 1753 * Only while this mode is enabled, the driver can download the 1754 * firmware patch data and configuration parameters. 1755 */ 1756 err = btintel_enter_mfg(hdev); 1757 if (err) { 1758 release_firmware(fw); 1759 return err; 1760 } 1761 1762 disable_patch = 1; 1763 1764 /* The firmware data file consists of list of Intel specific HCI 1765 * commands and its expected events. The first byte indicates the 1766 * type of the message, either HCI command or HCI event. 1767 * 1768 * It reads the command and its expected event from the firmware file, 1769 * and send to the controller. Once __hci_cmd_sync_ev() returns, 1770 * the returned event is compared with the event read from the firmware 1771 * file and it will continue until all the messages are downloaded to 1772 * the controller. 1773 * 1774 * Once the firmware patching is completed successfully, 1775 * the manufacturer mode is disabled with reset and activating the 1776 * downloaded patch. 1777 * 1778 * If the firmware patching fails, the manufacturer mode is 1779 * disabled with reset and deactivating the patch. 1780 * 1781 * If the default patch file is used, no reset is done when disabling 1782 * the manufacturer. 1783 */ 1784 while (fw->size > fw_ptr - fw->data) { 1785 int ret; 1786 1787 ret = btusb_setup_intel_patching(hdev, fw, &fw_ptr, 1788 &disable_patch); 1789 if (ret < 0) 1790 goto exit_mfg_deactivate; 1791 } 1792 1793 release_firmware(fw); 1794 1795 if (disable_patch) 1796 goto exit_mfg_disable; 1797 1798 /* Patching completed successfully and disable the manufacturer mode 1799 * with reset and activate the downloaded firmware patches. 1800 */ 1801 err = btintel_exit_mfg(hdev, true, true); 1802 if (err) 1803 return err; 1804 1805 bt_dev_info(hdev, "Intel firmware patch completed and activated"); 1806 1807 goto complete; 1808 1809 exit_mfg_disable: 1810 /* Disable the manufacturer mode without reset */ 1811 err = btintel_exit_mfg(hdev, false, false); 1812 if (err) 1813 return err; 1814 1815 bt_dev_info(hdev, "Intel firmware patch completed"); 1816 1817 goto complete; 1818 1819 exit_mfg_deactivate: 1820 release_firmware(fw); 1821 1822 /* Patching failed. Disable the manufacturer mode with reset and 1823 * deactivate the downloaded firmware patches. 1824 */ 1825 err = btintel_exit_mfg(hdev, true, false); 1826 if (err) 1827 return err; 1828 1829 bt_dev_info(hdev, "Intel firmware patch completed and deactivated"); 1830 1831 complete: 1832 /* Set the event mask for Intel specific vendor events. This enables 1833 * a few extra events that are useful during general operation. 1834 */ 1835 btintel_set_event_mask_mfg(hdev, false); 1836 1837 btintel_check_bdaddr(hdev); 1838 return 0; 1839 } 1840 1841 static int inject_cmd_complete(struct hci_dev *hdev, __u16 opcode) 1842 { 1843 struct sk_buff *skb; 1844 struct hci_event_hdr *hdr; 1845 struct hci_ev_cmd_complete *evt; 1846 1847 skb = bt_skb_alloc(sizeof(*hdr) + sizeof(*evt) + 1, GFP_ATOMIC); 1848 if (!skb) 1849 return -ENOMEM; 1850 1851 hdr = skb_put(skb, sizeof(*hdr)); 1852 hdr->evt = HCI_EV_CMD_COMPLETE; 1853 hdr->plen = sizeof(*evt) + 1; 1854 1855 evt = skb_put(skb, sizeof(*evt)); 1856 evt->ncmd = 0x01; 1857 evt->opcode = cpu_to_le16(opcode); 1858 1859 skb_put_u8(skb, 0x00); 1860 1861 hci_skb_pkt_type(skb) = HCI_EVENT_PKT; 1862 1863 return hci_recv_frame(hdev, skb); 1864 } 1865 1866 static int btusb_recv_bulk_intel(struct btusb_data *data, void *buffer, 1867 int count) 1868 { 1869 /* When the device is in bootloader mode, then it can send 1870 * events via the bulk endpoint. These events are treated the 1871 * same way as the ones received from the interrupt endpoint. 1872 */ 1873 if (test_bit(BTUSB_BOOTLOADER, &data->flags)) 1874 return btusb_recv_intr(data, buffer, count); 1875 1876 return btusb_recv_bulk(data, buffer, count); 1877 } 1878 1879 static void btusb_intel_bootup(struct btusb_data *data, const void *ptr, 1880 unsigned int len) 1881 { 1882 const struct intel_bootup *evt = ptr; 1883 1884 if (len != sizeof(*evt)) 1885 return; 1886 1887 if (test_and_clear_bit(BTUSB_BOOTING, &data->flags)) { 1888 smp_mb__after_atomic(); 1889 wake_up_bit(&data->flags, BTUSB_BOOTING); 1890 } 1891 } 1892 1893 static void btusb_intel_secure_send_result(struct btusb_data *data, 1894 const void *ptr, unsigned int len) 1895 { 1896 const struct intel_secure_send_result *evt = ptr; 1897 1898 if (len != sizeof(*evt)) 1899 return; 1900 1901 if (evt->result) 1902 set_bit(BTUSB_FIRMWARE_FAILED, &data->flags); 1903 1904 if (test_and_clear_bit(BTUSB_DOWNLOADING, &data->flags) && 1905 test_bit(BTUSB_FIRMWARE_LOADED, &data->flags)) { 1906 smp_mb__after_atomic(); 1907 wake_up_bit(&data->flags, BTUSB_DOWNLOADING); 1908 } 1909 } 1910 1911 static int btusb_recv_event_intel(struct hci_dev *hdev, struct sk_buff *skb) 1912 { 1913 struct btusb_data *data = hci_get_drvdata(hdev); 1914 1915 if (test_bit(BTUSB_BOOTLOADER, &data->flags)) { 1916 struct hci_event_hdr *hdr = (void *)skb->data; 1917 1918 if (skb->len > HCI_EVENT_HDR_SIZE && hdr->evt == 0xff && 1919 hdr->plen > 0) { 1920 const void *ptr = skb->data + HCI_EVENT_HDR_SIZE + 1; 1921 unsigned int len = skb->len - HCI_EVENT_HDR_SIZE - 1; 1922 1923 switch (skb->data[2]) { 1924 case 0x02: 1925 /* When switching to the operational firmware 1926 * the device sends a vendor specific event 1927 * indicating that the bootup completed. 1928 */ 1929 btusb_intel_bootup(data, ptr, len); 1930 break; 1931 case 0x06: 1932 /* When the firmware loading completes the 1933 * device sends out a vendor specific event 1934 * indicating the result of the firmware 1935 * loading. 1936 */ 1937 btusb_intel_secure_send_result(data, ptr, len); 1938 break; 1939 } 1940 } 1941 } 1942 1943 return hci_recv_frame(hdev, skb); 1944 } 1945 1946 static int btusb_send_frame_intel(struct hci_dev *hdev, struct sk_buff *skb) 1947 { 1948 struct btusb_data *data = hci_get_drvdata(hdev); 1949 struct urb *urb; 1950 1951 BT_DBG("%s", hdev->name); 1952 1953 switch (hci_skb_pkt_type(skb)) { 1954 case HCI_COMMAND_PKT: 1955 if (test_bit(BTUSB_BOOTLOADER, &data->flags)) { 1956 struct hci_command_hdr *cmd = (void *)skb->data; 1957 __u16 opcode = le16_to_cpu(cmd->opcode); 1958 1959 /* When in bootloader mode and the command 0xfc09 1960 * is received, it needs to be send down the 1961 * bulk endpoint. So allocate a bulk URB instead. 1962 */ 1963 if (opcode == 0xfc09) 1964 urb = alloc_bulk_urb(hdev, skb); 1965 else 1966 urb = alloc_ctrl_urb(hdev, skb); 1967 1968 /* When the 0xfc01 command is issued to boot into 1969 * the operational firmware, it will actually not 1970 * send a command complete event. To keep the flow 1971 * control working inject that event here. 1972 */ 1973 if (opcode == 0xfc01) 1974 inject_cmd_complete(hdev, opcode); 1975 } else { 1976 urb = alloc_ctrl_urb(hdev, skb); 1977 } 1978 if (IS_ERR(urb)) 1979 return PTR_ERR(urb); 1980 1981 hdev->stat.cmd_tx++; 1982 return submit_or_queue_tx_urb(hdev, urb); 1983 1984 case HCI_ACLDATA_PKT: 1985 urb = alloc_bulk_urb(hdev, skb); 1986 if (IS_ERR(urb)) 1987 return PTR_ERR(urb); 1988 1989 hdev->stat.acl_tx++; 1990 return submit_or_queue_tx_urb(hdev, urb); 1991 1992 case HCI_SCODATA_PKT: 1993 if (hci_conn_num(hdev, SCO_LINK) < 1) 1994 return -ENODEV; 1995 1996 urb = alloc_isoc_urb(hdev, skb); 1997 if (IS_ERR(urb)) 1998 return PTR_ERR(urb); 1999 2000 hdev->stat.sco_tx++; 2001 return submit_tx_urb(hdev, urb); 2002 } 2003 2004 return -EILSEQ; 2005 } 2006 2007 static int btusb_setup_intel_new(struct hci_dev *hdev) 2008 { 2009 static const u8 reset_param[] = { 0x00, 0x01, 0x00, 0x01, 2010 0x00, 0x08, 0x04, 0x00 }; 2011 struct btusb_data *data = hci_get_drvdata(hdev); 2012 struct sk_buff *skb; 2013 struct intel_version ver; 2014 struct intel_boot_params *params; 2015 const struct firmware *fw; 2016 const u8 *fw_ptr; 2017 u32 frag_len; 2018 char fwname[64]; 2019 ktime_t calltime, delta, rettime; 2020 unsigned long long duration; 2021 int err; 2022 2023 BT_DBG("%s", hdev->name); 2024 2025 calltime = ktime_get(); 2026 2027 /* Read the Intel version information to determine if the device 2028 * is in bootloader mode or if it already has operational firmware 2029 * loaded. 2030 */ 2031 err = btintel_read_version(hdev, &ver); 2032 if (err) 2033 return err; 2034 2035 /* The hardware platform number has a fixed value of 0x37 and 2036 * for now only accept this single value. 2037 */ 2038 if (ver.hw_platform != 0x37) { 2039 BT_ERR("%s: Unsupported Intel hardware platform (%u)", 2040 hdev->name, ver.hw_platform); 2041 return -EINVAL; 2042 } 2043 2044 /* Check for supported iBT hardware variants of this firmware 2045 * loading method. 2046 * 2047 * This check has been put in place to ensure correct forward 2048 * compatibility options when newer hardware variants come along. 2049 */ 2050 switch (ver.hw_variant) { 2051 case 0x0b: /* SfP */ 2052 case 0x0c: /* WsP */ 2053 case 0x11: /* JfP */ 2054 case 0x12: /* ThP */ 2055 break; 2056 default: 2057 BT_ERR("%s: Unsupported Intel hardware variant (%u)", 2058 hdev->name, ver.hw_variant); 2059 return -EINVAL; 2060 } 2061 2062 btintel_version_info(hdev, &ver); 2063 2064 /* The firmware variant determines if the device is in bootloader 2065 * mode or is running operational firmware. The value 0x06 identifies 2066 * the bootloader and the value 0x23 identifies the operational 2067 * firmware. 2068 * 2069 * When the operational firmware is already present, then only 2070 * the check for valid Bluetooth device address is needed. This 2071 * determines if the device will be added as configured or 2072 * unconfigured controller. 2073 * 2074 * It is not possible to use the Secure Boot Parameters in this 2075 * case since that command is only available in bootloader mode. 2076 */ 2077 if (ver.fw_variant == 0x23) { 2078 clear_bit(BTUSB_BOOTLOADER, &data->flags); 2079 btintel_check_bdaddr(hdev); 2080 return 0; 2081 } 2082 2083 /* If the device is not in bootloader mode, then the only possible 2084 * choice is to return an error and abort the device initialization. 2085 */ 2086 if (ver.fw_variant != 0x06) { 2087 BT_ERR("%s: Unsupported Intel firmware variant (%u)", 2088 hdev->name, ver.fw_variant); 2089 return -ENODEV; 2090 } 2091 2092 /* Read the secure boot parameters to identify the operating 2093 * details of the bootloader. 2094 */ 2095 skb = __hci_cmd_sync(hdev, 0xfc0d, 0, NULL, HCI_INIT_TIMEOUT); 2096 if (IS_ERR(skb)) { 2097 BT_ERR("%s: Reading Intel boot parameters failed (%ld)", 2098 hdev->name, PTR_ERR(skb)); 2099 return PTR_ERR(skb); 2100 } 2101 2102 if (skb->len != sizeof(*params)) { 2103 BT_ERR("%s: Intel boot parameters size mismatch", hdev->name); 2104 kfree_skb(skb); 2105 return -EILSEQ; 2106 } 2107 2108 params = (struct intel_boot_params *)skb->data; 2109 2110 bt_dev_info(hdev, "Device revision is %u", 2111 le16_to_cpu(params->dev_revid)); 2112 2113 bt_dev_info(hdev, "Secure boot is %s", 2114 params->secure_boot ? "enabled" : "disabled"); 2115 2116 bt_dev_info(hdev, "OTP lock is %s", 2117 params->otp_lock ? "enabled" : "disabled"); 2118 2119 bt_dev_info(hdev, "API lock is %s", 2120 params->api_lock ? "enabled" : "disabled"); 2121 2122 bt_dev_info(hdev, "Debug lock is %s", 2123 params->debug_lock ? "enabled" : "disabled"); 2124 2125 bt_dev_info(hdev, "Minimum firmware build %u week %u %u", 2126 params->min_fw_build_nn, params->min_fw_build_cw, 2127 2000 + params->min_fw_build_yy); 2128 2129 /* It is required that every single firmware fragment is acknowledged 2130 * with a command complete event. If the boot parameters indicate 2131 * that this bootloader does not send them, then abort the setup. 2132 */ 2133 if (params->limited_cce != 0x00) { 2134 BT_ERR("%s: Unsupported Intel firmware loading method (%u)", 2135 hdev->name, params->limited_cce); 2136 kfree_skb(skb); 2137 return -EINVAL; 2138 } 2139 2140 /* If the OTP has no valid Bluetooth device address, then there will 2141 * also be no valid address for the operational firmware. 2142 */ 2143 if (!bacmp(¶ms->otp_bdaddr, BDADDR_ANY)) { 2144 bt_dev_info(hdev, "No device address configured"); 2145 set_bit(HCI_QUIRK_INVALID_BDADDR, &hdev->quirks); 2146 } 2147 2148 /* With this Intel bootloader only the hardware variant and device 2149 * revision information are used to select the right firmware for SfP 2150 * and WsP. 2151 * 2152 * The firmware filename is ibt-<hw_variant>-<dev_revid>.sfi. 2153 * 2154 * Currently the supported hardware variants are: 2155 * 11 (0x0b) for iBT3.0 (LnP/SfP) 2156 * 12 (0x0c) for iBT3.5 (WsP) 2157 * 2158 * For ThP/JfP and for future SKU's, the FW name varies based on HW 2159 * variant, HW revision and FW revision, as these are dependent on CNVi 2160 * and RF Combination. 2161 * 2162 * 17 (0x11) for iBT3.5 (JfP) 2163 * 18 (0x12) for iBT3.5 (ThP) 2164 * 2165 * The firmware file name for these will be 2166 * ibt-<hw_variant>-<hw_revision>-<fw_revision>.sfi. 2167 * 2168 */ 2169 switch (ver.hw_variant) { 2170 case 0x0b: /* SfP */ 2171 case 0x0c: /* WsP */ 2172 snprintf(fwname, sizeof(fwname), "intel/ibt-%u-%u.sfi", 2173 le16_to_cpu(ver.hw_variant), 2174 le16_to_cpu(params->dev_revid)); 2175 break; 2176 case 0x11: /* JfP */ 2177 case 0x12: /* ThP */ 2178 snprintf(fwname, sizeof(fwname), "intel/ibt-%u-%u-%u.sfi", 2179 le16_to_cpu(ver.hw_variant), 2180 le16_to_cpu(ver.hw_revision), 2181 le16_to_cpu(ver.fw_revision)); 2182 break; 2183 default: 2184 BT_ERR("%s: Unsupported Intel firmware naming", hdev->name); 2185 return -EINVAL; 2186 } 2187 2188 err = request_firmware(&fw, fwname, &hdev->dev); 2189 if (err < 0) { 2190 BT_ERR("%s: Failed to load Intel firmware file (%d)", 2191 hdev->name, err); 2192 kfree_skb(skb); 2193 return err; 2194 } 2195 2196 bt_dev_info(hdev, "Found device firmware: %s", fwname); 2197 2198 /* Save the DDC file name for later use to apply once the firmware 2199 * downloading is done. 2200 */ 2201 switch (ver.hw_variant) { 2202 case 0x0b: /* SfP */ 2203 case 0x0c: /* WsP */ 2204 snprintf(fwname, sizeof(fwname), "intel/ibt-%u-%u.ddc", 2205 le16_to_cpu(ver.hw_variant), 2206 le16_to_cpu(params->dev_revid)); 2207 break; 2208 case 0x11: /* JfP */ 2209 case 0x12: /* ThP */ 2210 snprintf(fwname, sizeof(fwname), "intel/ibt-%u-%u-%u.ddc", 2211 le16_to_cpu(ver.hw_variant), 2212 le16_to_cpu(ver.hw_revision), 2213 le16_to_cpu(ver.fw_revision)); 2214 break; 2215 default: 2216 BT_ERR("%s: Unsupported Intel firmware naming", hdev->name); 2217 return -EINVAL; 2218 } 2219 2220 kfree_skb(skb); 2221 2222 if (fw->size < 644) { 2223 BT_ERR("%s: Invalid size of firmware file (%zu)", 2224 hdev->name, fw->size); 2225 err = -EBADF; 2226 goto done; 2227 } 2228 2229 set_bit(BTUSB_DOWNLOADING, &data->flags); 2230 2231 /* Start the firmware download transaction with the Init fragment 2232 * represented by the 128 bytes of CSS header. 2233 */ 2234 err = btintel_secure_send(hdev, 0x00, 128, fw->data); 2235 if (err < 0) { 2236 BT_ERR("%s: Failed to send firmware header (%d)", 2237 hdev->name, err); 2238 goto done; 2239 } 2240 2241 /* Send the 256 bytes of public key information from the firmware 2242 * as the PKey fragment. 2243 */ 2244 err = btintel_secure_send(hdev, 0x03, 256, fw->data + 128); 2245 if (err < 0) { 2246 BT_ERR("%s: Failed to send firmware public key (%d)", 2247 hdev->name, err); 2248 goto done; 2249 } 2250 2251 /* Send the 256 bytes of signature information from the firmware 2252 * as the Sign fragment. 2253 */ 2254 err = btintel_secure_send(hdev, 0x02, 256, fw->data + 388); 2255 if (err < 0) { 2256 BT_ERR("%s: Failed to send firmware signature (%d)", 2257 hdev->name, err); 2258 goto done; 2259 } 2260 2261 fw_ptr = fw->data + 644; 2262 frag_len = 0; 2263 2264 while (fw_ptr - fw->data < fw->size) { 2265 struct hci_command_hdr *cmd = (void *)(fw_ptr + frag_len); 2266 2267 frag_len += sizeof(*cmd) + cmd->plen; 2268 2269 /* The parameter length of the secure send command requires 2270 * a 4 byte alignment. It happens so that the firmware file 2271 * contains proper Intel_NOP commands to align the fragments 2272 * as needed. 2273 * 2274 * Send set of commands with 4 byte alignment from the 2275 * firmware data buffer as a single Data fragement. 2276 */ 2277 if (!(frag_len % 4)) { 2278 err = btintel_secure_send(hdev, 0x01, frag_len, fw_ptr); 2279 if (err < 0) { 2280 BT_ERR("%s: Failed to send firmware data (%d)", 2281 hdev->name, err); 2282 goto done; 2283 } 2284 2285 fw_ptr += frag_len; 2286 frag_len = 0; 2287 } 2288 } 2289 2290 set_bit(BTUSB_FIRMWARE_LOADED, &data->flags); 2291 2292 bt_dev_info(hdev, "Waiting for firmware download to complete"); 2293 2294 /* Before switching the device into operational mode and with that 2295 * booting the loaded firmware, wait for the bootloader notification 2296 * that all fragments have been successfully received. 2297 * 2298 * When the event processing receives the notification, then the 2299 * BTUSB_DOWNLOADING flag will be cleared. 2300 * 2301 * The firmware loading should not take longer than 5 seconds 2302 * and thus just timeout if that happens and fail the setup 2303 * of this device. 2304 */ 2305 err = wait_on_bit_timeout(&data->flags, BTUSB_DOWNLOADING, 2306 TASK_INTERRUPTIBLE, 2307 msecs_to_jiffies(5000)); 2308 if (err == -EINTR) { 2309 BT_ERR("%s: Firmware loading interrupted", hdev->name); 2310 goto done; 2311 } 2312 2313 if (err) { 2314 BT_ERR("%s: Firmware loading timeout", hdev->name); 2315 err = -ETIMEDOUT; 2316 goto done; 2317 } 2318 2319 if (test_bit(BTUSB_FIRMWARE_FAILED, &data->flags)) { 2320 BT_ERR("%s: Firmware loading failed", hdev->name); 2321 err = -ENOEXEC; 2322 goto done; 2323 } 2324 2325 rettime = ktime_get(); 2326 delta = ktime_sub(rettime, calltime); 2327 duration = (unsigned long long) ktime_to_ns(delta) >> 10; 2328 2329 bt_dev_info(hdev, "Firmware loaded in %llu usecs", duration); 2330 2331 done: 2332 release_firmware(fw); 2333 2334 if (err < 0) 2335 return err; 2336 2337 calltime = ktime_get(); 2338 2339 set_bit(BTUSB_BOOTING, &data->flags); 2340 2341 skb = __hci_cmd_sync(hdev, 0xfc01, sizeof(reset_param), reset_param, 2342 HCI_INIT_TIMEOUT); 2343 if (IS_ERR(skb)) 2344 return PTR_ERR(skb); 2345 2346 kfree_skb(skb); 2347 2348 /* The bootloader will not indicate when the device is ready. This 2349 * is done by the operational firmware sending bootup notification. 2350 * 2351 * Booting into operational firmware should not take longer than 2352 * 1 second. However if that happens, then just fail the setup 2353 * since something went wrong. 2354 */ 2355 bt_dev_info(hdev, "Waiting for device to boot"); 2356 2357 err = wait_on_bit_timeout(&data->flags, BTUSB_BOOTING, 2358 TASK_INTERRUPTIBLE, 2359 msecs_to_jiffies(1000)); 2360 2361 if (err == -EINTR) { 2362 BT_ERR("%s: Device boot interrupted", hdev->name); 2363 return -EINTR; 2364 } 2365 2366 if (err) { 2367 BT_ERR("%s: Device boot timeout", hdev->name); 2368 return -ETIMEDOUT; 2369 } 2370 2371 rettime = ktime_get(); 2372 delta = ktime_sub(rettime, calltime); 2373 duration = (unsigned long long) ktime_to_ns(delta) >> 10; 2374 2375 bt_dev_info(hdev, "Device booted in %llu usecs", duration); 2376 2377 clear_bit(BTUSB_BOOTLOADER, &data->flags); 2378 2379 /* Once the device is running in operational mode, it needs to apply 2380 * the device configuration (DDC) parameters. 2381 * 2382 * The device can work without DDC parameters, so even if it fails 2383 * to load the file, no need to fail the setup. 2384 */ 2385 btintel_load_ddc_config(hdev, fwname); 2386 2387 /* Set the event mask for Intel specific vendor events. This enables 2388 * a few extra events that are useful during general operation. It 2389 * does not enable any debugging related events. 2390 * 2391 * The device will function correctly without these events enabled 2392 * and thus no need to fail the setup. 2393 */ 2394 btintel_set_event_mask(hdev, false); 2395 2396 return 0; 2397 } 2398 2399 static int btusb_shutdown_intel(struct hci_dev *hdev) 2400 { 2401 struct sk_buff *skb; 2402 long ret; 2403 2404 /* Some platforms have an issue with BT LED when the interface is 2405 * down or BT radio is turned off, which takes 5 seconds to BT LED 2406 * goes off. This command turns off the BT LED immediately. 2407 */ 2408 skb = __hci_cmd_sync(hdev, 0xfc3f, 0, NULL, HCI_INIT_TIMEOUT); 2409 if (IS_ERR(skb)) { 2410 ret = PTR_ERR(skb); 2411 BT_ERR("%s: turning off Intel device LED failed (%ld)", 2412 hdev->name, ret); 2413 return ret; 2414 } 2415 kfree_skb(skb); 2416 2417 return 0; 2418 } 2419 2420 #ifdef CONFIG_PM 2421 /* Configure an out-of-band gpio as wake-up pin, if specified in device tree */ 2422 static int marvell_config_oob_wake(struct hci_dev *hdev) 2423 { 2424 struct sk_buff *skb; 2425 struct btusb_data *data = hci_get_drvdata(hdev); 2426 struct device *dev = &data->udev->dev; 2427 u16 pin, gap, opcode; 2428 int ret; 2429 u8 cmd[5]; 2430 2431 /* Move on if no wakeup pin specified */ 2432 if (of_property_read_u16(dev->of_node, "marvell,wakeup-pin", &pin) || 2433 of_property_read_u16(dev->of_node, "marvell,wakeup-gap-ms", &gap)) 2434 return 0; 2435 2436 /* Vendor specific command to configure a GPIO as wake-up pin */ 2437 opcode = hci_opcode_pack(0x3F, 0x59); 2438 cmd[0] = opcode & 0xFF; 2439 cmd[1] = opcode >> 8; 2440 cmd[2] = 2; /* length of parameters that follow */ 2441 cmd[3] = pin; 2442 cmd[4] = gap; /* time in ms, for which wakeup pin should be asserted */ 2443 2444 skb = bt_skb_alloc(sizeof(cmd), GFP_KERNEL); 2445 if (!skb) { 2446 bt_dev_err(hdev, "%s: No memory\n", __func__); 2447 return -ENOMEM; 2448 } 2449 2450 skb_put_data(skb, cmd, sizeof(cmd)); 2451 hci_skb_pkt_type(skb) = HCI_COMMAND_PKT; 2452 2453 ret = btusb_send_frame(hdev, skb); 2454 if (ret) { 2455 bt_dev_err(hdev, "%s: configuration failed\n", __func__); 2456 kfree_skb(skb); 2457 return ret; 2458 } 2459 2460 return 0; 2461 } 2462 #endif 2463 2464 static int btusb_set_bdaddr_marvell(struct hci_dev *hdev, 2465 const bdaddr_t *bdaddr) 2466 { 2467 struct sk_buff *skb; 2468 u8 buf[8]; 2469 long ret; 2470 2471 buf[0] = 0xfe; 2472 buf[1] = sizeof(bdaddr_t); 2473 memcpy(buf + 2, bdaddr, sizeof(bdaddr_t)); 2474 2475 skb = __hci_cmd_sync(hdev, 0xfc22, sizeof(buf), buf, HCI_INIT_TIMEOUT); 2476 if (IS_ERR(skb)) { 2477 ret = PTR_ERR(skb); 2478 bt_dev_err(hdev, "changing Marvell device address failed (%ld)", 2479 ret); 2480 return ret; 2481 } 2482 kfree_skb(skb); 2483 2484 return 0; 2485 } 2486 2487 static int btusb_set_bdaddr_ath3012(struct hci_dev *hdev, 2488 const bdaddr_t *bdaddr) 2489 { 2490 struct sk_buff *skb; 2491 u8 buf[10]; 2492 long ret; 2493 2494 buf[0] = 0x01; 2495 buf[1] = 0x01; 2496 buf[2] = 0x00; 2497 buf[3] = sizeof(bdaddr_t); 2498 memcpy(buf + 4, bdaddr, sizeof(bdaddr_t)); 2499 2500 skb = __hci_cmd_sync(hdev, 0xfc0b, sizeof(buf), buf, HCI_INIT_TIMEOUT); 2501 if (IS_ERR(skb)) { 2502 ret = PTR_ERR(skb); 2503 bt_dev_err(hdev, "Change address command failed (%ld)", ret); 2504 return ret; 2505 } 2506 kfree_skb(skb); 2507 2508 return 0; 2509 } 2510 2511 #define QCA_DFU_PACKET_LEN 4096 2512 2513 #define QCA_GET_TARGET_VERSION 0x09 2514 #define QCA_CHECK_STATUS 0x05 2515 #define QCA_DFU_DOWNLOAD 0x01 2516 2517 #define QCA_SYSCFG_UPDATED 0x40 2518 #define QCA_PATCH_UPDATED 0x80 2519 #define QCA_DFU_TIMEOUT 3000 2520 2521 struct qca_version { 2522 __le32 rom_version; 2523 __le32 patch_version; 2524 __le32 ram_version; 2525 __le32 ref_clock; 2526 __u8 reserved[4]; 2527 } __packed; 2528 2529 struct qca_rampatch_version { 2530 __le16 rom_version; 2531 __le16 patch_version; 2532 } __packed; 2533 2534 struct qca_device_info { 2535 u32 rom_version; 2536 u8 rampatch_hdr; /* length of header in rampatch */ 2537 u8 nvm_hdr; /* length of header in NVM */ 2538 u8 ver_offset; /* offset of version structure in rampatch */ 2539 }; 2540 2541 static const struct qca_device_info qca_devices_table[] = { 2542 { 0x00000100, 20, 4, 10 }, /* Rome 1.0 */ 2543 { 0x00000101, 20, 4, 10 }, /* Rome 1.1 */ 2544 { 0x00000200, 28, 4, 18 }, /* Rome 2.0 */ 2545 { 0x00000201, 28, 4, 18 }, /* Rome 2.1 */ 2546 { 0x00000300, 28, 4, 18 }, /* Rome 3.0 */ 2547 { 0x00000302, 28, 4, 18 }, /* Rome 3.2 */ 2548 }; 2549 2550 static int btusb_qca_send_vendor_req(struct hci_dev *hdev, u8 request, 2551 void *data, u16 size) 2552 { 2553 struct btusb_data *btdata = hci_get_drvdata(hdev); 2554 struct usb_device *udev = btdata->udev; 2555 int pipe, err; 2556 u8 *buf; 2557 2558 buf = kmalloc(size, GFP_KERNEL); 2559 if (!buf) 2560 return -ENOMEM; 2561 2562 /* Found some of USB hosts have IOT issues with ours so that we should 2563 * not wait until HCI layer is ready. 2564 */ 2565 pipe = usb_rcvctrlpipe(udev, 0); 2566 err = usb_control_msg(udev, pipe, request, USB_TYPE_VENDOR | USB_DIR_IN, 2567 0, 0, buf, size, USB_CTRL_SET_TIMEOUT); 2568 if (err < 0) { 2569 bt_dev_err(hdev, "Failed to access otp area (%d)", err); 2570 goto done; 2571 } 2572 2573 memcpy(data, buf, size); 2574 2575 done: 2576 kfree(buf); 2577 2578 return err; 2579 } 2580 2581 static int btusb_setup_qca_download_fw(struct hci_dev *hdev, 2582 const struct firmware *firmware, 2583 size_t hdr_size) 2584 { 2585 struct btusb_data *btdata = hci_get_drvdata(hdev); 2586 struct usb_device *udev = btdata->udev; 2587 size_t count, size, sent = 0; 2588 int pipe, len, err; 2589 u8 *buf; 2590 2591 buf = kmalloc(QCA_DFU_PACKET_LEN, GFP_KERNEL); 2592 if (!buf) 2593 return -ENOMEM; 2594 2595 count = firmware->size; 2596 2597 size = min_t(size_t, count, hdr_size); 2598 memcpy(buf, firmware->data, size); 2599 2600 /* USB patches should go down to controller through USB path 2601 * because binary format fits to go down through USB channel. 2602 * USB control path is for patching headers and USB bulk is for 2603 * patch body. 2604 */ 2605 pipe = usb_sndctrlpipe(udev, 0); 2606 err = usb_control_msg(udev, pipe, QCA_DFU_DOWNLOAD, USB_TYPE_VENDOR, 2607 0, 0, buf, size, USB_CTRL_SET_TIMEOUT); 2608 if (err < 0) { 2609 bt_dev_err(hdev, "Failed to send headers (%d)", err); 2610 goto done; 2611 } 2612 2613 sent += size; 2614 count -= size; 2615 2616 while (count) { 2617 size = min_t(size_t, count, QCA_DFU_PACKET_LEN); 2618 2619 memcpy(buf, firmware->data + sent, size); 2620 2621 pipe = usb_sndbulkpipe(udev, 0x02); 2622 err = usb_bulk_msg(udev, pipe, buf, size, &len, 2623 QCA_DFU_TIMEOUT); 2624 if (err < 0) { 2625 bt_dev_err(hdev, "Failed to send body at %zd of %zd (%d)", 2626 sent, firmware->size, err); 2627 break; 2628 } 2629 2630 if (size != len) { 2631 bt_dev_err(hdev, "Failed to get bulk buffer"); 2632 err = -EILSEQ; 2633 break; 2634 } 2635 2636 sent += size; 2637 count -= size; 2638 } 2639 2640 done: 2641 kfree(buf); 2642 return err; 2643 } 2644 2645 static int btusb_setup_qca_load_rampatch(struct hci_dev *hdev, 2646 struct qca_version *ver, 2647 const struct qca_device_info *info) 2648 { 2649 struct qca_rampatch_version *rver; 2650 const struct firmware *fw; 2651 u32 ver_rom, ver_patch; 2652 u16 rver_rom, rver_patch; 2653 char fwname[64]; 2654 int err; 2655 2656 ver_rom = le32_to_cpu(ver->rom_version); 2657 ver_patch = le32_to_cpu(ver->patch_version); 2658 2659 snprintf(fwname, sizeof(fwname), "qca/rampatch_usb_%08x.bin", ver_rom); 2660 2661 err = request_firmware(&fw, fwname, &hdev->dev); 2662 if (err) { 2663 bt_dev_err(hdev, "failed to request rampatch file: %s (%d)", 2664 fwname, err); 2665 return err; 2666 } 2667 2668 bt_dev_info(hdev, "using rampatch file: %s", fwname); 2669 2670 rver = (struct qca_rampatch_version *)(fw->data + info->ver_offset); 2671 rver_rom = le16_to_cpu(rver->rom_version); 2672 rver_patch = le16_to_cpu(rver->patch_version); 2673 2674 bt_dev_info(hdev, "QCA: patch rome 0x%x build 0x%x, " 2675 "firmware rome 0x%x build 0x%x", 2676 rver_rom, rver_patch, ver_rom, ver_patch); 2677 2678 if (rver_rom != ver_rom || rver_patch <= ver_patch) { 2679 bt_dev_err(hdev, "rampatch file version did not match with firmware"); 2680 err = -EINVAL; 2681 goto done; 2682 } 2683 2684 err = btusb_setup_qca_download_fw(hdev, fw, info->rampatch_hdr); 2685 2686 done: 2687 release_firmware(fw); 2688 2689 return err; 2690 } 2691 2692 static int btusb_setup_qca_load_nvm(struct hci_dev *hdev, 2693 struct qca_version *ver, 2694 const struct qca_device_info *info) 2695 { 2696 const struct firmware *fw; 2697 char fwname[64]; 2698 int err; 2699 2700 snprintf(fwname, sizeof(fwname), "qca/nvm_usb_%08x.bin", 2701 le32_to_cpu(ver->rom_version)); 2702 2703 err = request_firmware(&fw, fwname, &hdev->dev); 2704 if (err) { 2705 bt_dev_err(hdev, "failed to request NVM file: %s (%d)", 2706 fwname, err); 2707 return err; 2708 } 2709 2710 bt_dev_info(hdev, "using NVM file: %s", fwname); 2711 2712 err = btusb_setup_qca_download_fw(hdev, fw, info->nvm_hdr); 2713 2714 release_firmware(fw); 2715 2716 return err; 2717 } 2718 2719 static int btusb_setup_qca(struct hci_dev *hdev) 2720 { 2721 const struct qca_device_info *info = NULL; 2722 struct qca_version ver; 2723 u32 ver_rom; 2724 u8 status; 2725 int i, err; 2726 2727 err = btusb_qca_send_vendor_req(hdev, QCA_GET_TARGET_VERSION, &ver, 2728 sizeof(ver)); 2729 if (err < 0) 2730 return err; 2731 2732 ver_rom = le32_to_cpu(ver.rom_version); 2733 for (i = 0; i < ARRAY_SIZE(qca_devices_table); i++) { 2734 if (ver_rom == qca_devices_table[i].rom_version) 2735 info = &qca_devices_table[i]; 2736 } 2737 if (!info) { 2738 bt_dev_err(hdev, "don't support firmware rome 0x%x", ver_rom); 2739 return -ENODEV; 2740 } 2741 2742 err = btusb_qca_send_vendor_req(hdev, QCA_CHECK_STATUS, &status, 2743 sizeof(status)); 2744 if (err < 0) 2745 return err; 2746 2747 if (!(status & QCA_PATCH_UPDATED)) { 2748 err = btusb_setup_qca_load_rampatch(hdev, &ver, info); 2749 if (err < 0) 2750 return err; 2751 } 2752 2753 if (!(status & QCA_SYSCFG_UPDATED)) { 2754 err = btusb_setup_qca_load_nvm(hdev, &ver, info); 2755 if (err < 0) 2756 return err; 2757 } 2758 2759 return 0; 2760 } 2761 2762 #ifdef CONFIG_BT_HCIBTUSB_BCM 2763 static inline int __set_diag_interface(struct hci_dev *hdev) 2764 { 2765 struct btusb_data *data = hci_get_drvdata(hdev); 2766 struct usb_interface *intf = data->diag; 2767 int i; 2768 2769 if (!data->diag) 2770 return -ENODEV; 2771 2772 data->diag_tx_ep = NULL; 2773 data->diag_rx_ep = NULL; 2774 2775 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) { 2776 struct usb_endpoint_descriptor *ep_desc; 2777 2778 ep_desc = &intf->cur_altsetting->endpoint[i].desc; 2779 2780 if (!data->diag_tx_ep && usb_endpoint_is_bulk_out(ep_desc)) { 2781 data->diag_tx_ep = ep_desc; 2782 continue; 2783 } 2784 2785 if (!data->diag_rx_ep && usb_endpoint_is_bulk_in(ep_desc)) { 2786 data->diag_rx_ep = ep_desc; 2787 continue; 2788 } 2789 } 2790 2791 if (!data->diag_tx_ep || !data->diag_rx_ep) { 2792 bt_dev_err(hdev, "invalid diagnostic descriptors"); 2793 return -ENODEV; 2794 } 2795 2796 return 0; 2797 } 2798 2799 static struct urb *alloc_diag_urb(struct hci_dev *hdev, bool enable) 2800 { 2801 struct btusb_data *data = hci_get_drvdata(hdev); 2802 struct sk_buff *skb; 2803 struct urb *urb; 2804 unsigned int pipe; 2805 2806 if (!data->diag_tx_ep) 2807 return ERR_PTR(-ENODEV); 2808 2809 urb = usb_alloc_urb(0, GFP_KERNEL); 2810 if (!urb) 2811 return ERR_PTR(-ENOMEM); 2812 2813 skb = bt_skb_alloc(2, GFP_KERNEL); 2814 if (!skb) { 2815 usb_free_urb(urb); 2816 return ERR_PTR(-ENOMEM); 2817 } 2818 2819 skb_put_u8(skb, 0xf0); 2820 skb_put_u8(skb, enable); 2821 2822 pipe = usb_sndbulkpipe(data->udev, data->diag_tx_ep->bEndpointAddress); 2823 2824 usb_fill_bulk_urb(urb, data->udev, pipe, 2825 skb->data, skb->len, btusb_tx_complete, skb); 2826 2827 skb->dev = (void *)hdev; 2828 2829 return urb; 2830 } 2831 2832 static int btusb_bcm_set_diag(struct hci_dev *hdev, bool enable) 2833 { 2834 struct btusb_data *data = hci_get_drvdata(hdev); 2835 struct urb *urb; 2836 2837 if (!data->diag) 2838 return -ENODEV; 2839 2840 if (!test_bit(HCI_RUNNING, &hdev->flags)) 2841 return -ENETDOWN; 2842 2843 urb = alloc_diag_urb(hdev, enable); 2844 if (IS_ERR(urb)) 2845 return PTR_ERR(urb); 2846 2847 return submit_or_queue_tx_urb(hdev, urb); 2848 } 2849 #endif 2850 2851 #ifdef CONFIG_PM 2852 static irqreturn_t btusb_oob_wake_handler(int irq, void *priv) 2853 { 2854 struct btusb_data *data = priv; 2855 2856 pm_wakeup_event(&data->udev->dev, 0); 2857 pm_system_wakeup(); 2858 2859 /* Disable only if not already disabled (keep it balanced) */ 2860 if (test_and_clear_bit(BTUSB_OOB_WAKE_ENABLED, &data->flags)) { 2861 disable_irq_nosync(irq); 2862 disable_irq_wake(irq); 2863 } 2864 return IRQ_HANDLED; 2865 } 2866 2867 static const struct of_device_id btusb_match_table[] = { 2868 { .compatible = "usb1286,204e" }, 2869 { } 2870 }; 2871 MODULE_DEVICE_TABLE(of, btusb_match_table); 2872 2873 /* Use an oob wakeup pin? */ 2874 static int btusb_config_oob_wake(struct hci_dev *hdev) 2875 { 2876 struct btusb_data *data = hci_get_drvdata(hdev); 2877 struct device *dev = &data->udev->dev; 2878 int irq, ret; 2879 2880 clear_bit(BTUSB_OOB_WAKE_ENABLED, &data->flags); 2881 2882 if (!of_match_device(btusb_match_table, dev)) 2883 return 0; 2884 2885 /* Move on if no IRQ specified */ 2886 irq = of_irq_get_byname(dev->of_node, "wakeup"); 2887 if (irq <= 0) { 2888 bt_dev_dbg(hdev, "%s: no OOB Wakeup IRQ in DT", __func__); 2889 return 0; 2890 } 2891 2892 ret = devm_request_irq(&hdev->dev, irq, btusb_oob_wake_handler, 2893 0, "OOB Wake-on-BT", data); 2894 if (ret) { 2895 bt_dev_err(hdev, "%s: IRQ request failed", __func__); 2896 return ret; 2897 } 2898 2899 ret = device_init_wakeup(dev, true); 2900 if (ret) { 2901 bt_dev_err(hdev, "%s: failed to init_wakeup", __func__); 2902 return ret; 2903 } 2904 2905 data->oob_wake_irq = irq; 2906 disable_irq(irq); 2907 bt_dev_info(hdev, "OOB Wake-on-BT configured at IRQ %u", irq); 2908 return 0; 2909 } 2910 #endif 2911 2912 static int btusb_probe(struct usb_interface *intf, 2913 const struct usb_device_id *id) 2914 { 2915 struct usb_endpoint_descriptor *ep_desc; 2916 struct btusb_data *data; 2917 struct hci_dev *hdev; 2918 unsigned ifnum_base; 2919 int i, err; 2920 2921 BT_DBG("intf %p id %p", intf, id); 2922 2923 /* interface numbers are hardcoded in the spec */ 2924 if (intf->cur_altsetting->desc.bInterfaceNumber != 0) { 2925 if (!(id->driver_info & BTUSB_IFNUM_2)) 2926 return -ENODEV; 2927 if (intf->cur_altsetting->desc.bInterfaceNumber != 2) 2928 return -ENODEV; 2929 } 2930 2931 ifnum_base = intf->cur_altsetting->desc.bInterfaceNumber; 2932 2933 if (!id->driver_info) { 2934 const struct usb_device_id *match; 2935 2936 match = usb_match_id(intf, blacklist_table); 2937 if (match) 2938 id = match; 2939 } 2940 2941 if (id->driver_info == BTUSB_IGNORE) 2942 return -ENODEV; 2943 2944 if (id->driver_info & BTUSB_ATH3012) { 2945 struct usb_device *udev = interface_to_usbdev(intf); 2946 2947 /* Old firmware would otherwise let ath3k driver load 2948 * patch and sysconfig files 2949 */ 2950 if (le16_to_cpu(udev->descriptor.bcdDevice) <= 0x0001) 2951 return -ENODEV; 2952 } 2953 2954 data = devm_kzalloc(&intf->dev, sizeof(*data), GFP_KERNEL); 2955 if (!data) 2956 return -ENOMEM; 2957 2958 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) { 2959 ep_desc = &intf->cur_altsetting->endpoint[i].desc; 2960 2961 if (!data->intr_ep && usb_endpoint_is_int_in(ep_desc)) { 2962 data->intr_ep = ep_desc; 2963 continue; 2964 } 2965 2966 if (!data->bulk_tx_ep && usb_endpoint_is_bulk_out(ep_desc)) { 2967 data->bulk_tx_ep = ep_desc; 2968 continue; 2969 } 2970 2971 if (!data->bulk_rx_ep && usb_endpoint_is_bulk_in(ep_desc)) { 2972 data->bulk_rx_ep = ep_desc; 2973 continue; 2974 } 2975 } 2976 2977 if (!data->intr_ep || !data->bulk_tx_ep || !data->bulk_rx_ep) 2978 return -ENODEV; 2979 2980 if (id->driver_info & BTUSB_AMP) { 2981 data->cmdreq_type = USB_TYPE_CLASS | 0x01; 2982 data->cmdreq = 0x2b; 2983 } else { 2984 data->cmdreq_type = USB_TYPE_CLASS; 2985 data->cmdreq = 0x00; 2986 } 2987 2988 data->udev = interface_to_usbdev(intf); 2989 data->intf = intf; 2990 2991 INIT_WORK(&data->work, btusb_work); 2992 INIT_WORK(&data->waker, btusb_waker); 2993 init_usb_anchor(&data->deferred); 2994 init_usb_anchor(&data->tx_anchor); 2995 spin_lock_init(&data->txlock); 2996 2997 init_usb_anchor(&data->intr_anchor); 2998 init_usb_anchor(&data->bulk_anchor); 2999 init_usb_anchor(&data->isoc_anchor); 3000 init_usb_anchor(&data->diag_anchor); 3001 spin_lock_init(&data->rxlock); 3002 3003 if (id->driver_info & BTUSB_INTEL_NEW) { 3004 data->recv_event = btusb_recv_event_intel; 3005 data->recv_bulk = btusb_recv_bulk_intel; 3006 set_bit(BTUSB_BOOTLOADER, &data->flags); 3007 } else { 3008 data->recv_event = hci_recv_frame; 3009 data->recv_bulk = btusb_recv_bulk; 3010 } 3011 3012 hdev = hci_alloc_dev(); 3013 if (!hdev) 3014 return -ENOMEM; 3015 3016 hdev->bus = HCI_USB; 3017 hci_set_drvdata(hdev, data); 3018 3019 if (id->driver_info & BTUSB_AMP) 3020 hdev->dev_type = HCI_AMP; 3021 else 3022 hdev->dev_type = HCI_PRIMARY; 3023 3024 data->hdev = hdev; 3025 3026 SET_HCIDEV_DEV(hdev, &intf->dev); 3027 3028 hdev->open = btusb_open; 3029 hdev->close = btusb_close; 3030 hdev->flush = btusb_flush; 3031 hdev->send = btusb_send_frame; 3032 hdev->notify = btusb_notify; 3033 3034 #ifdef CONFIG_PM 3035 err = btusb_config_oob_wake(hdev); 3036 if (err) 3037 goto out_free_dev; 3038 3039 /* Marvell devices may need a specific chip configuration */ 3040 if (id->driver_info & BTUSB_MARVELL && data->oob_wake_irq) { 3041 err = marvell_config_oob_wake(hdev); 3042 if (err) 3043 goto out_free_dev; 3044 } 3045 #endif 3046 if (id->driver_info & BTUSB_CW6622) 3047 set_bit(HCI_QUIRK_BROKEN_STORED_LINK_KEY, &hdev->quirks); 3048 3049 if (id->driver_info & BTUSB_BCM2045) 3050 set_bit(HCI_QUIRK_BROKEN_STORED_LINK_KEY, &hdev->quirks); 3051 3052 if (id->driver_info & BTUSB_BCM92035) 3053 hdev->setup = btusb_setup_bcm92035; 3054 3055 #ifdef CONFIG_BT_HCIBTUSB_BCM 3056 if (id->driver_info & BTUSB_BCM_PATCHRAM) { 3057 hdev->manufacturer = 15; 3058 hdev->setup = btbcm_setup_patchram; 3059 hdev->set_diag = btusb_bcm_set_diag; 3060 hdev->set_bdaddr = btbcm_set_bdaddr; 3061 3062 /* Broadcom LM_DIAG Interface numbers are hardcoded */ 3063 data->diag = usb_ifnum_to_if(data->udev, ifnum_base + 2); 3064 } 3065 3066 if (id->driver_info & BTUSB_BCM_APPLE) { 3067 hdev->manufacturer = 15; 3068 hdev->setup = btbcm_setup_apple; 3069 hdev->set_diag = btusb_bcm_set_diag; 3070 3071 /* Broadcom LM_DIAG Interface numbers are hardcoded */ 3072 data->diag = usb_ifnum_to_if(data->udev, ifnum_base + 2); 3073 } 3074 #endif 3075 3076 if (id->driver_info & BTUSB_INTEL) { 3077 hdev->manufacturer = 2; 3078 hdev->setup = btusb_setup_intel; 3079 hdev->shutdown = btusb_shutdown_intel; 3080 hdev->set_diag = btintel_set_diag_mfg; 3081 hdev->set_bdaddr = btintel_set_bdaddr; 3082 set_bit(HCI_QUIRK_STRICT_DUPLICATE_FILTER, &hdev->quirks); 3083 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks); 3084 set_bit(HCI_QUIRK_NON_PERSISTENT_DIAG, &hdev->quirks); 3085 } 3086 3087 if (id->driver_info & BTUSB_INTEL_NEW) { 3088 hdev->manufacturer = 2; 3089 hdev->send = btusb_send_frame_intel; 3090 hdev->setup = btusb_setup_intel_new; 3091 hdev->hw_error = btintel_hw_error; 3092 hdev->set_diag = btintel_set_diag; 3093 hdev->set_bdaddr = btintel_set_bdaddr; 3094 set_bit(HCI_QUIRK_STRICT_DUPLICATE_FILTER, &hdev->quirks); 3095 set_bit(HCI_QUIRK_NON_PERSISTENT_DIAG, &hdev->quirks); 3096 } 3097 3098 if (id->driver_info & BTUSB_MARVELL) 3099 hdev->set_bdaddr = btusb_set_bdaddr_marvell; 3100 3101 if (id->driver_info & BTUSB_SWAVE) { 3102 set_bit(HCI_QUIRK_FIXUP_INQUIRY_MODE, &hdev->quirks); 3103 set_bit(HCI_QUIRK_BROKEN_LOCAL_COMMANDS, &hdev->quirks); 3104 } 3105 3106 if (id->driver_info & BTUSB_INTEL_BOOT) { 3107 hdev->manufacturer = 2; 3108 set_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks); 3109 } 3110 3111 if (id->driver_info & BTUSB_ATH3012) { 3112 hdev->set_bdaddr = btusb_set_bdaddr_ath3012; 3113 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks); 3114 set_bit(HCI_QUIRK_STRICT_DUPLICATE_FILTER, &hdev->quirks); 3115 } 3116 3117 if (id->driver_info & BTUSB_QCA_ROME) { 3118 data->setup_on_usb = btusb_setup_qca; 3119 hdev->set_bdaddr = btusb_set_bdaddr_ath3012; 3120 3121 /* QCA Rome devices lose their updated firmware over suspend, 3122 * but the USB hub doesn't notice any status change. 3123 * Explicitly request a device reset on resume. 3124 */ 3125 set_bit(BTUSB_RESET_RESUME, &data->flags); 3126 } 3127 3128 #ifdef CONFIG_BT_HCIBTUSB_RTL 3129 if (id->driver_info & BTUSB_REALTEK) { 3130 hdev->setup = btrtl_setup_realtek; 3131 3132 /* Realtek devices lose their updated firmware over suspend, 3133 * but the USB hub doesn't notice any status change. 3134 * Explicitly request a device reset on resume. 3135 */ 3136 set_bit(BTUSB_RESET_RESUME, &data->flags); 3137 } 3138 #endif 3139 3140 if (id->driver_info & BTUSB_AMP) { 3141 /* AMP controllers do not support SCO packets */ 3142 data->isoc = NULL; 3143 } else { 3144 /* Interface orders are hardcoded in the specification */ 3145 data->isoc = usb_ifnum_to_if(data->udev, ifnum_base + 1); 3146 data->isoc_ifnum = ifnum_base + 1; 3147 } 3148 3149 if (!reset) 3150 set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks); 3151 3152 if (force_scofix || id->driver_info & BTUSB_WRONG_SCO_MTU) { 3153 if (!disable_scofix) 3154 set_bit(HCI_QUIRK_FIXUP_BUFFER_SIZE, &hdev->quirks); 3155 } 3156 3157 if (id->driver_info & BTUSB_BROKEN_ISOC) 3158 data->isoc = NULL; 3159 3160 if (id->driver_info & BTUSB_DIGIANSWER) { 3161 data->cmdreq_type = USB_TYPE_VENDOR; 3162 set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks); 3163 } 3164 3165 if (id->driver_info & BTUSB_CSR) { 3166 struct usb_device *udev = data->udev; 3167 u16 bcdDevice = le16_to_cpu(udev->descriptor.bcdDevice); 3168 3169 /* Old firmware would otherwise execute USB reset */ 3170 if (bcdDevice < 0x117) 3171 set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks); 3172 3173 /* Fake CSR devices with broken commands */ 3174 if (bcdDevice <= 0x100 || bcdDevice == 0x134) 3175 hdev->setup = btusb_setup_csr; 3176 3177 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks); 3178 } 3179 3180 if (id->driver_info & BTUSB_SNIFFER) { 3181 struct usb_device *udev = data->udev; 3182 3183 /* New sniffer firmware has crippled HCI interface */ 3184 if (le16_to_cpu(udev->descriptor.bcdDevice) > 0x997) 3185 set_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks); 3186 } 3187 3188 if (id->driver_info & BTUSB_INTEL_BOOT) { 3189 /* A bug in the bootloader causes that interrupt interface is 3190 * only enabled after receiving SetInterface(0, AltSetting=0). 3191 */ 3192 err = usb_set_interface(data->udev, 0, 0); 3193 if (err < 0) { 3194 BT_ERR("failed to set interface 0, alt 0 %d", err); 3195 goto out_free_dev; 3196 } 3197 } 3198 3199 if (data->isoc) { 3200 err = usb_driver_claim_interface(&btusb_driver, 3201 data->isoc, data); 3202 if (err < 0) 3203 goto out_free_dev; 3204 } 3205 3206 #ifdef CONFIG_BT_HCIBTUSB_BCM 3207 if (data->diag) { 3208 if (!usb_driver_claim_interface(&btusb_driver, 3209 data->diag, data)) 3210 __set_diag_interface(hdev); 3211 else 3212 data->diag = NULL; 3213 } 3214 #endif 3215 3216 err = hci_register_dev(hdev); 3217 if (err < 0) 3218 goto out_free_dev; 3219 3220 usb_set_intfdata(intf, data); 3221 3222 return 0; 3223 3224 out_free_dev: 3225 hci_free_dev(hdev); 3226 return err; 3227 } 3228 3229 static void btusb_disconnect(struct usb_interface *intf) 3230 { 3231 struct btusb_data *data = usb_get_intfdata(intf); 3232 struct hci_dev *hdev; 3233 3234 BT_DBG("intf %p", intf); 3235 3236 if (!data) 3237 return; 3238 3239 hdev = data->hdev; 3240 usb_set_intfdata(data->intf, NULL); 3241 3242 if (data->isoc) 3243 usb_set_intfdata(data->isoc, NULL); 3244 3245 if (data->diag) 3246 usb_set_intfdata(data->diag, NULL); 3247 3248 hci_unregister_dev(hdev); 3249 3250 if (intf == data->intf) { 3251 if (data->isoc) 3252 usb_driver_release_interface(&btusb_driver, data->isoc); 3253 if (data->diag) 3254 usb_driver_release_interface(&btusb_driver, data->diag); 3255 } else if (intf == data->isoc) { 3256 if (data->diag) 3257 usb_driver_release_interface(&btusb_driver, data->diag); 3258 usb_driver_release_interface(&btusb_driver, data->intf); 3259 } else if (intf == data->diag) { 3260 usb_driver_release_interface(&btusb_driver, data->intf); 3261 if (data->isoc) 3262 usb_driver_release_interface(&btusb_driver, data->isoc); 3263 } 3264 3265 if (data->oob_wake_irq) 3266 device_init_wakeup(&data->udev->dev, false); 3267 3268 hci_free_dev(hdev); 3269 } 3270 3271 #ifdef CONFIG_PM 3272 static int btusb_suspend(struct usb_interface *intf, pm_message_t message) 3273 { 3274 struct btusb_data *data = usb_get_intfdata(intf); 3275 3276 BT_DBG("intf %p", intf); 3277 3278 if (data->suspend_count++) 3279 return 0; 3280 3281 spin_lock_irq(&data->txlock); 3282 if (!(PMSG_IS_AUTO(message) && data->tx_in_flight)) { 3283 set_bit(BTUSB_SUSPENDING, &data->flags); 3284 spin_unlock_irq(&data->txlock); 3285 } else { 3286 spin_unlock_irq(&data->txlock); 3287 data->suspend_count--; 3288 return -EBUSY; 3289 } 3290 3291 cancel_work_sync(&data->work); 3292 3293 btusb_stop_traffic(data); 3294 usb_kill_anchored_urbs(&data->tx_anchor); 3295 3296 if (data->oob_wake_irq && device_may_wakeup(&data->udev->dev)) { 3297 set_bit(BTUSB_OOB_WAKE_ENABLED, &data->flags); 3298 enable_irq_wake(data->oob_wake_irq); 3299 enable_irq(data->oob_wake_irq); 3300 } 3301 3302 /* Optionally request a device reset on resume, but only when 3303 * wakeups are disabled. If wakeups are enabled we assume the 3304 * device will stay powered up throughout suspend. 3305 */ 3306 if (test_bit(BTUSB_RESET_RESUME, &data->flags) && 3307 !device_may_wakeup(&data->udev->dev)) 3308 data->udev->reset_resume = 1; 3309 3310 return 0; 3311 } 3312 3313 static void play_deferred(struct btusb_data *data) 3314 { 3315 struct urb *urb; 3316 int err; 3317 3318 while ((urb = usb_get_from_anchor(&data->deferred))) { 3319 usb_anchor_urb(urb, &data->tx_anchor); 3320 3321 err = usb_submit_urb(urb, GFP_ATOMIC); 3322 if (err < 0) { 3323 if (err != -EPERM && err != -ENODEV) 3324 BT_ERR("%s urb %p submission failed (%d)", 3325 data->hdev->name, urb, -err); 3326 kfree(urb->setup_packet); 3327 usb_unanchor_urb(urb); 3328 usb_free_urb(urb); 3329 break; 3330 } 3331 3332 data->tx_in_flight++; 3333 usb_free_urb(urb); 3334 } 3335 3336 /* Cleanup the rest deferred urbs. */ 3337 while ((urb = usb_get_from_anchor(&data->deferred))) { 3338 kfree(urb->setup_packet); 3339 usb_free_urb(urb); 3340 } 3341 } 3342 3343 static int btusb_resume(struct usb_interface *intf) 3344 { 3345 struct btusb_data *data = usb_get_intfdata(intf); 3346 struct hci_dev *hdev = data->hdev; 3347 int err = 0; 3348 3349 BT_DBG("intf %p", intf); 3350 3351 if (--data->suspend_count) 3352 return 0; 3353 3354 /* Disable only if not already disabled (keep it balanced) */ 3355 if (test_and_clear_bit(BTUSB_OOB_WAKE_ENABLED, &data->flags)) { 3356 disable_irq(data->oob_wake_irq); 3357 disable_irq_wake(data->oob_wake_irq); 3358 } 3359 3360 if (!test_bit(HCI_RUNNING, &hdev->flags)) 3361 goto done; 3362 3363 if (test_bit(BTUSB_INTR_RUNNING, &data->flags)) { 3364 err = btusb_submit_intr_urb(hdev, GFP_NOIO); 3365 if (err < 0) { 3366 clear_bit(BTUSB_INTR_RUNNING, &data->flags); 3367 goto failed; 3368 } 3369 } 3370 3371 if (test_bit(BTUSB_BULK_RUNNING, &data->flags)) { 3372 err = btusb_submit_bulk_urb(hdev, GFP_NOIO); 3373 if (err < 0) { 3374 clear_bit(BTUSB_BULK_RUNNING, &data->flags); 3375 goto failed; 3376 } 3377 3378 btusb_submit_bulk_urb(hdev, GFP_NOIO); 3379 } 3380 3381 if (test_bit(BTUSB_ISOC_RUNNING, &data->flags)) { 3382 if (btusb_submit_isoc_urb(hdev, GFP_NOIO) < 0) 3383 clear_bit(BTUSB_ISOC_RUNNING, &data->flags); 3384 else 3385 btusb_submit_isoc_urb(hdev, GFP_NOIO); 3386 } 3387 3388 spin_lock_irq(&data->txlock); 3389 play_deferred(data); 3390 clear_bit(BTUSB_SUSPENDING, &data->flags); 3391 spin_unlock_irq(&data->txlock); 3392 schedule_work(&data->work); 3393 3394 return 0; 3395 3396 failed: 3397 usb_scuttle_anchored_urbs(&data->deferred); 3398 done: 3399 spin_lock_irq(&data->txlock); 3400 clear_bit(BTUSB_SUSPENDING, &data->flags); 3401 spin_unlock_irq(&data->txlock); 3402 3403 return err; 3404 } 3405 #endif 3406 3407 static struct usb_driver btusb_driver = { 3408 .name = "btusb", 3409 .probe = btusb_probe, 3410 .disconnect = btusb_disconnect, 3411 #ifdef CONFIG_PM 3412 .suspend = btusb_suspend, 3413 .resume = btusb_resume, 3414 #endif 3415 .id_table = btusb_table, 3416 .supports_autosuspend = 1, 3417 .disable_hub_initiated_lpm = 1, 3418 }; 3419 3420 module_usb_driver(btusb_driver); 3421 3422 module_param(disable_scofix, bool, 0644); 3423 MODULE_PARM_DESC(disable_scofix, "Disable fixup of wrong SCO buffer size"); 3424 3425 module_param(force_scofix, bool, 0644); 3426 MODULE_PARM_DESC(force_scofix, "Force fixup of wrong SCO buffers size"); 3427 3428 module_param(reset, bool, 0644); 3429 MODULE_PARM_DESC(reset, "Send HCI reset command on initialization"); 3430 3431 MODULE_AUTHOR("Marcel Holtmann <marcel@holtmann.org>"); 3432 MODULE_DESCRIPTION("Generic Bluetooth USB driver ver " VERSION); 3433 MODULE_VERSION(VERSION); 3434 MODULE_LICENSE("GPL"); 3435