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/dmi.h> 25 #include <linux/module.h> 26 #include <linux/usb.h> 27 #include <linux/usb/quirks.h> 28 #include <linux/firmware.h> 29 #include <linux/of_device.h> 30 #include <linux/of_irq.h> 31 #include <linux/suspend.h> 32 #include <asm/unaligned.h> 33 34 #include <net/bluetooth/bluetooth.h> 35 #include <net/bluetooth/hci_core.h> 36 37 #include "btintel.h" 38 #include "btbcm.h" 39 #include "btrtl.h" 40 41 #define VERSION "0.8" 42 43 static bool disable_scofix; 44 static bool force_scofix; 45 static bool enable_autosuspend = IS_ENABLED(CONFIG_BT_HCIBTUSB_AUTOSUSPEND); 46 47 static bool reset = true; 48 49 static struct usb_driver btusb_driver; 50 51 #define BTUSB_IGNORE 0x01 52 #define BTUSB_DIGIANSWER 0x02 53 #define BTUSB_CSR 0x04 54 #define BTUSB_SNIFFER 0x08 55 #define BTUSB_BCM92035 0x10 56 #define BTUSB_BROKEN_ISOC 0x20 57 #define BTUSB_WRONG_SCO_MTU 0x40 58 #define BTUSB_ATH3012 0x80 59 #define BTUSB_INTEL 0x100 60 #define BTUSB_INTEL_BOOT 0x200 61 #define BTUSB_BCM_PATCHRAM 0x400 62 #define BTUSB_MARVELL 0x800 63 #define BTUSB_SWAVE 0x1000 64 #define BTUSB_INTEL_NEW 0x2000 65 #define BTUSB_AMP 0x4000 66 #define BTUSB_QCA_ROME 0x8000 67 #define BTUSB_BCM_APPLE 0x10000 68 #define BTUSB_REALTEK 0x20000 69 #define BTUSB_BCM2045 0x40000 70 #define BTUSB_IFNUM_2 0x80000 71 #define BTUSB_CW6622 0x100000 72 73 static const struct usb_device_id btusb_table[] = { 74 /* Generic Bluetooth USB device */ 75 { USB_DEVICE_INFO(0xe0, 0x01, 0x01) }, 76 77 /* Generic Bluetooth AMP device */ 78 { USB_DEVICE_INFO(0xe0, 0x01, 0x04), .driver_info = BTUSB_AMP }, 79 80 /* Generic Bluetooth USB interface */ 81 { USB_INTERFACE_INFO(0xe0, 0x01, 0x01) }, 82 83 /* Apple-specific (Broadcom) devices */ 84 { USB_VENDOR_AND_INTERFACE_INFO(0x05ac, 0xff, 0x01, 0x01), 85 .driver_info = BTUSB_BCM_APPLE | BTUSB_IFNUM_2 }, 86 87 /* MediaTek MT76x0E */ 88 { USB_DEVICE(0x0e8d, 0x763f) }, 89 90 /* Broadcom SoftSailing reporting vendor specific */ 91 { USB_DEVICE(0x0a5c, 0x21e1) }, 92 93 /* Apple MacBookPro 7,1 */ 94 { USB_DEVICE(0x05ac, 0x8213) }, 95 96 /* Apple iMac11,1 */ 97 { USB_DEVICE(0x05ac, 0x8215) }, 98 99 /* Apple MacBookPro6,2 */ 100 { USB_DEVICE(0x05ac, 0x8218) }, 101 102 /* Apple MacBookAir3,1, MacBookAir3,2 */ 103 { USB_DEVICE(0x05ac, 0x821b) }, 104 105 /* Apple MacBookAir4,1 */ 106 { USB_DEVICE(0x05ac, 0x821f) }, 107 108 /* Apple MacBookPro8,2 */ 109 { USB_DEVICE(0x05ac, 0x821a) }, 110 111 /* Apple MacMini5,1 */ 112 { USB_DEVICE(0x05ac, 0x8281) }, 113 114 /* AVM BlueFRITZ! USB v2.0 */ 115 { USB_DEVICE(0x057c, 0x3800), .driver_info = BTUSB_SWAVE }, 116 117 /* Bluetooth Ultraport Module from IBM */ 118 { USB_DEVICE(0x04bf, 0x030a) }, 119 120 /* ALPS Modules with non-standard id */ 121 { USB_DEVICE(0x044e, 0x3001) }, 122 { USB_DEVICE(0x044e, 0x3002) }, 123 124 /* Ericsson with non-standard id */ 125 { USB_DEVICE(0x0bdb, 0x1002) }, 126 127 /* Canyon CN-BTU1 with HID interfaces */ 128 { USB_DEVICE(0x0c10, 0x0000) }, 129 130 /* Broadcom BCM20702A0 */ 131 { USB_DEVICE(0x413c, 0x8197) }, 132 133 /* Broadcom BCM20702B0 (Dynex/Insignia) */ 134 { USB_DEVICE(0x19ff, 0x0239), .driver_info = BTUSB_BCM_PATCHRAM }, 135 136 /* Broadcom BCM43142A0 (Foxconn/Lenovo) */ 137 { USB_VENDOR_AND_INTERFACE_INFO(0x105b, 0xff, 0x01, 0x01), 138 .driver_info = BTUSB_BCM_PATCHRAM }, 139 140 /* Broadcom BCM920703 (HTC Vive) */ 141 { USB_VENDOR_AND_INTERFACE_INFO(0x0bb4, 0xff, 0x01, 0x01), 142 .driver_info = BTUSB_BCM_PATCHRAM }, 143 144 /* Foxconn - Hon Hai */ 145 { USB_VENDOR_AND_INTERFACE_INFO(0x0489, 0xff, 0x01, 0x01), 146 .driver_info = BTUSB_BCM_PATCHRAM }, 147 148 /* Lite-On Technology - Broadcom based */ 149 { USB_VENDOR_AND_INTERFACE_INFO(0x04ca, 0xff, 0x01, 0x01), 150 .driver_info = BTUSB_BCM_PATCHRAM }, 151 152 /* Broadcom devices with vendor specific id */ 153 { USB_VENDOR_AND_INTERFACE_INFO(0x0a5c, 0xff, 0x01, 0x01), 154 .driver_info = BTUSB_BCM_PATCHRAM }, 155 156 /* ASUSTek Computer - Broadcom based */ 157 { USB_VENDOR_AND_INTERFACE_INFO(0x0b05, 0xff, 0x01, 0x01), 158 .driver_info = BTUSB_BCM_PATCHRAM }, 159 160 /* Belkin F8065bf - Broadcom based */ 161 { USB_VENDOR_AND_INTERFACE_INFO(0x050d, 0xff, 0x01, 0x01), 162 .driver_info = BTUSB_BCM_PATCHRAM }, 163 164 /* IMC Networks - Broadcom based */ 165 { USB_VENDOR_AND_INTERFACE_INFO(0x13d3, 0xff, 0x01, 0x01), 166 .driver_info = BTUSB_BCM_PATCHRAM }, 167 168 /* Dell Computer - Broadcom based */ 169 { USB_VENDOR_AND_INTERFACE_INFO(0x413c, 0xff, 0x01, 0x01), 170 .driver_info = BTUSB_BCM_PATCHRAM }, 171 172 /* Toshiba Corp - Broadcom based */ 173 { USB_VENDOR_AND_INTERFACE_INFO(0x0930, 0xff, 0x01, 0x01), 174 .driver_info = BTUSB_BCM_PATCHRAM }, 175 176 /* Intel Bluetooth USB Bootloader (RAM module) */ 177 { USB_DEVICE(0x8087, 0x0a5a), 178 .driver_info = BTUSB_INTEL_BOOT | BTUSB_BROKEN_ISOC }, 179 180 { } /* Terminating entry */ 181 }; 182 183 MODULE_DEVICE_TABLE(usb, btusb_table); 184 185 static const struct usb_device_id blacklist_table[] = { 186 /* CSR BlueCore devices */ 187 { USB_DEVICE(0x0a12, 0x0001), .driver_info = BTUSB_CSR }, 188 189 /* Broadcom BCM2033 without firmware */ 190 { USB_DEVICE(0x0a5c, 0x2033), .driver_info = BTUSB_IGNORE }, 191 192 /* Broadcom BCM2045 devices */ 193 { USB_DEVICE(0x0a5c, 0x2045), .driver_info = BTUSB_BCM2045 }, 194 195 /* Atheros 3011 with sflash firmware */ 196 { USB_DEVICE(0x0489, 0xe027), .driver_info = BTUSB_IGNORE }, 197 { USB_DEVICE(0x0489, 0xe03d), .driver_info = BTUSB_IGNORE }, 198 { USB_DEVICE(0x04f2, 0xaff1), .driver_info = BTUSB_IGNORE }, 199 { USB_DEVICE(0x0930, 0x0215), .driver_info = BTUSB_IGNORE }, 200 { USB_DEVICE(0x0cf3, 0x3002), .driver_info = BTUSB_IGNORE }, 201 { USB_DEVICE(0x0cf3, 0xe019), .driver_info = BTUSB_IGNORE }, 202 { USB_DEVICE(0x13d3, 0x3304), .driver_info = BTUSB_IGNORE }, 203 204 /* Atheros AR9285 Malbec with sflash firmware */ 205 { USB_DEVICE(0x03f0, 0x311d), .driver_info = BTUSB_IGNORE }, 206 207 /* Atheros 3012 with sflash firmware */ 208 { USB_DEVICE(0x0489, 0xe04d), .driver_info = BTUSB_ATH3012 }, 209 { USB_DEVICE(0x0489, 0xe04e), .driver_info = BTUSB_ATH3012 }, 210 { USB_DEVICE(0x0489, 0xe056), .driver_info = BTUSB_ATH3012 }, 211 { USB_DEVICE(0x0489, 0xe057), .driver_info = BTUSB_ATH3012 }, 212 { USB_DEVICE(0x0489, 0xe05f), .driver_info = BTUSB_ATH3012 }, 213 { USB_DEVICE(0x0489, 0xe076), .driver_info = BTUSB_ATH3012 }, 214 { USB_DEVICE(0x0489, 0xe078), .driver_info = BTUSB_ATH3012 }, 215 { USB_DEVICE(0x0489, 0xe095), .driver_info = BTUSB_ATH3012 }, 216 { USB_DEVICE(0x04c5, 0x1330), .driver_info = BTUSB_ATH3012 }, 217 { USB_DEVICE(0x04ca, 0x3004), .driver_info = BTUSB_ATH3012 }, 218 { USB_DEVICE(0x04ca, 0x3005), .driver_info = BTUSB_ATH3012 }, 219 { USB_DEVICE(0x04ca, 0x3006), .driver_info = BTUSB_ATH3012 }, 220 { USB_DEVICE(0x04ca, 0x3007), .driver_info = BTUSB_ATH3012 }, 221 { USB_DEVICE(0x04ca, 0x3008), .driver_info = BTUSB_ATH3012 }, 222 { USB_DEVICE(0x04ca, 0x300b), .driver_info = BTUSB_ATH3012 }, 223 { USB_DEVICE(0x04ca, 0x300d), .driver_info = BTUSB_ATH3012 }, 224 { USB_DEVICE(0x04ca, 0x300f), .driver_info = BTUSB_ATH3012 }, 225 { USB_DEVICE(0x04ca, 0x3010), .driver_info = BTUSB_ATH3012 }, 226 { USB_DEVICE(0x04ca, 0x3014), .driver_info = BTUSB_ATH3012 }, 227 { USB_DEVICE(0x04ca, 0x3018), .driver_info = BTUSB_ATH3012 }, 228 { USB_DEVICE(0x0930, 0x0219), .driver_info = BTUSB_ATH3012 }, 229 { USB_DEVICE(0x0930, 0x021c), .driver_info = BTUSB_ATH3012 }, 230 { USB_DEVICE(0x0930, 0x0220), .driver_info = BTUSB_ATH3012 }, 231 { USB_DEVICE(0x0930, 0x0227), .driver_info = BTUSB_ATH3012 }, 232 { USB_DEVICE(0x0b05, 0x17d0), .driver_info = BTUSB_ATH3012 }, 233 { USB_DEVICE(0x0cf3, 0x0036), .driver_info = BTUSB_ATH3012 }, 234 { USB_DEVICE(0x0cf3, 0x3004), .driver_info = BTUSB_ATH3012 }, 235 { USB_DEVICE(0x0cf3, 0x3008), .driver_info = BTUSB_ATH3012 }, 236 { USB_DEVICE(0x0cf3, 0x311d), .driver_info = BTUSB_ATH3012 }, 237 { USB_DEVICE(0x0cf3, 0x311e), .driver_info = BTUSB_ATH3012 }, 238 { USB_DEVICE(0x0cf3, 0x311f), .driver_info = BTUSB_ATH3012 }, 239 { USB_DEVICE(0x0cf3, 0x3121), .driver_info = BTUSB_ATH3012 }, 240 { USB_DEVICE(0x0cf3, 0x817a), .driver_info = BTUSB_ATH3012 }, 241 { USB_DEVICE(0x0cf3, 0x817b), .driver_info = BTUSB_ATH3012 }, 242 { USB_DEVICE(0x0cf3, 0xe003), .driver_info = BTUSB_ATH3012 }, 243 { USB_DEVICE(0x0cf3, 0xe004), .driver_info = BTUSB_ATH3012 }, 244 { USB_DEVICE(0x0cf3, 0xe005), .driver_info = BTUSB_ATH3012 }, 245 { USB_DEVICE(0x0cf3, 0xe006), .driver_info = BTUSB_ATH3012 }, 246 { USB_DEVICE(0x13d3, 0x3362), .driver_info = BTUSB_ATH3012 }, 247 { USB_DEVICE(0x13d3, 0x3375), .driver_info = BTUSB_ATH3012 }, 248 { USB_DEVICE(0x13d3, 0x3393), .driver_info = BTUSB_ATH3012 }, 249 { USB_DEVICE(0x13d3, 0x3395), .driver_info = BTUSB_ATH3012 }, 250 { USB_DEVICE(0x13d3, 0x3402), .driver_info = BTUSB_ATH3012 }, 251 { USB_DEVICE(0x13d3, 0x3408), .driver_info = BTUSB_ATH3012 }, 252 { USB_DEVICE(0x13d3, 0x3423), .driver_info = BTUSB_ATH3012 }, 253 { USB_DEVICE(0x13d3, 0x3432), .driver_info = BTUSB_ATH3012 }, 254 { USB_DEVICE(0x13d3, 0x3472), .driver_info = BTUSB_ATH3012 }, 255 { USB_DEVICE(0x13d3, 0x3474), .driver_info = BTUSB_ATH3012 }, 256 { USB_DEVICE(0x13d3, 0x3487), .driver_info = BTUSB_ATH3012 }, 257 { USB_DEVICE(0x13d3, 0x3490), .driver_info = BTUSB_ATH3012 }, 258 259 /* Atheros AR5BBU12 with sflash firmware */ 260 { USB_DEVICE(0x0489, 0xe02c), .driver_info = BTUSB_IGNORE }, 261 262 /* Atheros AR5BBU12 with sflash firmware */ 263 { USB_DEVICE(0x0489, 0xe036), .driver_info = BTUSB_ATH3012 }, 264 { USB_DEVICE(0x0489, 0xe03c), .driver_info = BTUSB_ATH3012 }, 265 266 /* QCA ROME chipset */ 267 { USB_DEVICE(0x0cf3, 0xe007), .driver_info = BTUSB_QCA_ROME }, 268 { USB_DEVICE(0x0cf3, 0xe009), .driver_info = BTUSB_QCA_ROME }, 269 { USB_DEVICE(0x0cf3, 0xe010), .driver_info = BTUSB_QCA_ROME }, 270 { USB_DEVICE(0x0cf3, 0xe300), .driver_info = BTUSB_QCA_ROME }, 271 { USB_DEVICE(0x0cf3, 0xe301), .driver_info = BTUSB_QCA_ROME }, 272 { USB_DEVICE(0x0cf3, 0xe360), .driver_info = BTUSB_QCA_ROME }, 273 { USB_DEVICE(0x0489, 0xe092), .driver_info = BTUSB_QCA_ROME }, 274 { USB_DEVICE(0x0489, 0xe09f), .driver_info = BTUSB_QCA_ROME }, 275 { USB_DEVICE(0x0489, 0xe0a2), .driver_info = BTUSB_QCA_ROME }, 276 { USB_DEVICE(0x04ca, 0x3011), .driver_info = BTUSB_QCA_ROME }, 277 { USB_DEVICE(0x04ca, 0x3015), .driver_info = BTUSB_QCA_ROME }, 278 { USB_DEVICE(0x04ca, 0x3016), .driver_info = BTUSB_QCA_ROME }, 279 { USB_DEVICE(0x04ca, 0x301a), .driver_info = BTUSB_QCA_ROME }, 280 { USB_DEVICE(0x13d3, 0x3496), .driver_info = BTUSB_QCA_ROME }, 281 282 /* Broadcom BCM2035 */ 283 { USB_DEVICE(0x0a5c, 0x2009), .driver_info = BTUSB_BCM92035 }, 284 { USB_DEVICE(0x0a5c, 0x200a), .driver_info = BTUSB_WRONG_SCO_MTU }, 285 { USB_DEVICE(0x0a5c, 0x2035), .driver_info = BTUSB_WRONG_SCO_MTU }, 286 287 /* Broadcom BCM2045 */ 288 { USB_DEVICE(0x0a5c, 0x2039), .driver_info = BTUSB_WRONG_SCO_MTU }, 289 { USB_DEVICE(0x0a5c, 0x2101), .driver_info = BTUSB_WRONG_SCO_MTU }, 290 291 /* IBM/Lenovo ThinkPad with Broadcom chip */ 292 { USB_DEVICE(0x0a5c, 0x201e), .driver_info = BTUSB_WRONG_SCO_MTU }, 293 { USB_DEVICE(0x0a5c, 0x2110), .driver_info = BTUSB_WRONG_SCO_MTU }, 294 295 /* HP laptop with Broadcom chip */ 296 { USB_DEVICE(0x03f0, 0x171d), .driver_info = BTUSB_WRONG_SCO_MTU }, 297 298 /* Dell laptop with Broadcom chip */ 299 { USB_DEVICE(0x413c, 0x8126), .driver_info = BTUSB_WRONG_SCO_MTU }, 300 301 /* Dell Wireless 370 and 410 devices */ 302 { USB_DEVICE(0x413c, 0x8152), .driver_info = BTUSB_WRONG_SCO_MTU }, 303 { USB_DEVICE(0x413c, 0x8156), .driver_info = BTUSB_WRONG_SCO_MTU }, 304 305 /* Belkin F8T012 and F8T013 devices */ 306 { USB_DEVICE(0x050d, 0x0012), .driver_info = BTUSB_WRONG_SCO_MTU }, 307 { USB_DEVICE(0x050d, 0x0013), .driver_info = BTUSB_WRONG_SCO_MTU }, 308 309 /* Asus WL-BTD202 device */ 310 { USB_DEVICE(0x0b05, 0x1715), .driver_info = BTUSB_WRONG_SCO_MTU }, 311 312 /* Kensington Bluetooth USB adapter */ 313 { USB_DEVICE(0x047d, 0x105e), .driver_info = BTUSB_WRONG_SCO_MTU }, 314 315 /* RTX Telecom based adapters with buggy SCO support */ 316 { USB_DEVICE(0x0400, 0x0807), .driver_info = BTUSB_BROKEN_ISOC }, 317 { USB_DEVICE(0x0400, 0x080a), .driver_info = BTUSB_BROKEN_ISOC }, 318 319 /* CONWISE Technology based adapters with buggy SCO support */ 320 { USB_DEVICE(0x0e5e, 0x6622), 321 .driver_info = BTUSB_BROKEN_ISOC | BTUSB_CW6622}, 322 323 /* Roper Class 1 Bluetooth Dongle (Silicon Wave based) */ 324 { USB_DEVICE(0x1310, 0x0001), .driver_info = BTUSB_SWAVE }, 325 326 /* Digianswer devices */ 327 { USB_DEVICE(0x08fd, 0x0001), .driver_info = BTUSB_DIGIANSWER }, 328 { USB_DEVICE(0x08fd, 0x0002), .driver_info = BTUSB_IGNORE }, 329 330 /* CSR BlueCore Bluetooth Sniffer */ 331 { USB_DEVICE(0x0a12, 0x0002), 332 .driver_info = BTUSB_SNIFFER | BTUSB_BROKEN_ISOC }, 333 334 /* Frontline ComProbe Bluetooth Sniffer */ 335 { USB_DEVICE(0x16d3, 0x0002), 336 .driver_info = BTUSB_SNIFFER | BTUSB_BROKEN_ISOC }, 337 338 /* Marvell Bluetooth devices */ 339 { USB_DEVICE(0x1286, 0x2044), .driver_info = BTUSB_MARVELL }, 340 { USB_DEVICE(0x1286, 0x2046), .driver_info = BTUSB_MARVELL }, 341 { USB_DEVICE(0x1286, 0x204e), .driver_info = BTUSB_MARVELL }, 342 343 /* Intel Bluetooth devices */ 344 { USB_DEVICE(0x8087, 0x0025), .driver_info = BTUSB_INTEL_NEW }, 345 { USB_DEVICE(0x8087, 0x0026), .driver_info = BTUSB_INTEL_NEW }, 346 { USB_DEVICE(0x8087, 0x07da), .driver_info = BTUSB_CSR }, 347 { USB_DEVICE(0x8087, 0x07dc), .driver_info = BTUSB_INTEL }, 348 { USB_DEVICE(0x8087, 0x0a2a), .driver_info = BTUSB_INTEL }, 349 { USB_DEVICE(0x8087, 0x0a2b), .driver_info = BTUSB_INTEL_NEW }, 350 { USB_DEVICE(0x8087, 0x0aa7), .driver_info = BTUSB_INTEL }, 351 { USB_DEVICE(0x8087, 0x0aaa), .driver_info = BTUSB_INTEL_NEW }, 352 353 /* Other Intel Bluetooth devices */ 354 { USB_VENDOR_AND_INTERFACE_INFO(0x8087, 0xe0, 0x01, 0x01), 355 .driver_info = BTUSB_IGNORE }, 356 357 /* Realtek Bluetooth devices */ 358 { USB_VENDOR_AND_INTERFACE_INFO(0x0bda, 0xe0, 0x01, 0x01), 359 .driver_info = BTUSB_REALTEK }, 360 361 /* Additional Realtek 8723AE Bluetooth devices */ 362 { USB_DEVICE(0x0930, 0x021d), .driver_info = BTUSB_REALTEK }, 363 { USB_DEVICE(0x13d3, 0x3394), .driver_info = BTUSB_REALTEK }, 364 365 /* Additional Realtek 8723BE Bluetooth devices */ 366 { USB_DEVICE(0x0489, 0xe085), .driver_info = BTUSB_REALTEK }, 367 { USB_DEVICE(0x0489, 0xe08b), .driver_info = BTUSB_REALTEK }, 368 { USB_DEVICE(0x13d3, 0x3410), .driver_info = BTUSB_REALTEK }, 369 { USB_DEVICE(0x13d3, 0x3416), .driver_info = BTUSB_REALTEK }, 370 { USB_DEVICE(0x13d3, 0x3459), .driver_info = BTUSB_REALTEK }, 371 { USB_DEVICE(0x13d3, 0x3494), .driver_info = BTUSB_REALTEK }, 372 373 /* Additional Realtek 8723BU Bluetooth devices */ 374 { USB_DEVICE(0x7392, 0xa611), .driver_info = BTUSB_REALTEK }, 375 376 /* Additional Realtek 8821AE Bluetooth devices */ 377 { USB_DEVICE(0x0b05, 0x17dc), .driver_info = BTUSB_REALTEK }, 378 { USB_DEVICE(0x13d3, 0x3414), .driver_info = BTUSB_REALTEK }, 379 { USB_DEVICE(0x13d3, 0x3458), .driver_info = BTUSB_REALTEK }, 380 { USB_DEVICE(0x13d3, 0x3461), .driver_info = BTUSB_REALTEK }, 381 { USB_DEVICE(0x13d3, 0x3462), .driver_info = BTUSB_REALTEK }, 382 383 /* Additional Realtek 8822BE Bluetooth devices */ 384 { USB_DEVICE(0x0b05, 0x185c), .driver_info = BTUSB_REALTEK }, 385 386 /* Silicon Wave based devices */ 387 { USB_DEVICE(0x0c10, 0x0000), .driver_info = BTUSB_SWAVE }, 388 389 { } /* Terminating entry */ 390 }; 391 392 /* The Bluetooth USB module build into some devices needs to be reset on resume, 393 * this is a problem with the platform (likely shutting off all power) not with 394 * the module itself. So we use a DMI list to match known broken platforms. 395 */ 396 static const struct dmi_system_id btusb_needs_reset_resume_table[] = { 397 { 398 /* Dell OptiPlex 3060 (QCA ROME device 0cf3:e007) */ 399 .matches = { 400 DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."), 401 DMI_MATCH(DMI_PRODUCT_NAME, "OptiPlex 3060"), 402 }, 403 }, 404 { 405 /* Dell XPS 9360 (QCA ROME device 0cf3:e300) */ 406 .matches = { 407 DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."), 408 DMI_MATCH(DMI_PRODUCT_NAME, "XPS 13 9360"), 409 }, 410 }, 411 {} 412 }; 413 414 #define BTUSB_MAX_ISOC_FRAMES 10 415 416 #define BTUSB_INTR_RUNNING 0 417 #define BTUSB_BULK_RUNNING 1 418 #define BTUSB_ISOC_RUNNING 2 419 #define BTUSB_SUSPENDING 3 420 #define BTUSB_DID_ISO_RESUME 4 421 #define BTUSB_BOOTLOADER 5 422 #define BTUSB_DOWNLOADING 6 423 #define BTUSB_FIRMWARE_LOADED 7 424 #define BTUSB_FIRMWARE_FAILED 8 425 #define BTUSB_BOOTING 9 426 #define BTUSB_DIAG_RUNNING 10 427 #define BTUSB_OOB_WAKE_ENABLED 11 428 429 struct btusb_data { 430 struct hci_dev *hdev; 431 struct usb_device *udev; 432 struct usb_interface *intf; 433 struct usb_interface *isoc; 434 struct usb_interface *diag; 435 unsigned isoc_ifnum; 436 437 unsigned long flags; 438 439 struct work_struct work; 440 struct work_struct waker; 441 442 struct usb_anchor deferred; 443 struct usb_anchor tx_anchor; 444 int tx_in_flight; 445 spinlock_t txlock; 446 447 struct usb_anchor intr_anchor; 448 struct usb_anchor bulk_anchor; 449 struct usb_anchor isoc_anchor; 450 struct usb_anchor diag_anchor; 451 spinlock_t rxlock; 452 453 struct sk_buff *evt_skb; 454 struct sk_buff *acl_skb; 455 struct sk_buff *sco_skb; 456 457 struct usb_endpoint_descriptor *intr_ep; 458 struct usb_endpoint_descriptor *bulk_tx_ep; 459 struct usb_endpoint_descriptor *bulk_rx_ep; 460 struct usb_endpoint_descriptor *isoc_tx_ep; 461 struct usb_endpoint_descriptor *isoc_rx_ep; 462 struct usb_endpoint_descriptor *diag_tx_ep; 463 struct usb_endpoint_descriptor *diag_rx_ep; 464 465 __u8 cmdreq_type; 466 __u8 cmdreq; 467 468 unsigned int sco_num; 469 int isoc_altsetting; 470 int suspend_count; 471 472 int (*recv_event)(struct hci_dev *hdev, struct sk_buff *skb); 473 int (*recv_bulk)(struct btusb_data *data, void *buffer, int count); 474 475 int (*setup_on_usb)(struct hci_dev *hdev); 476 477 int oob_wake_irq; /* irq for out-of-band wake-on-bt */ 478 }; 479 480 static inline void btusb_free_frags(struct btusb_data *data) 481 { 482 unsigned long flags; 483 484 spin_lock_irqsave(&data->rxlock, flags); 485 486 kfree_skb(data->evt_skb); 487 data->evt_skb = NULL; 488 489 kfree_skb(data->acl_skb); 490 data->acl_skb = NULL; 491 492 kfree_skb(data->sco_skb); 493 data->sco_skb = NULL; 494 495 spin_unlock_irqrestore(&data->rxlock, flags); 496 } 497 498 static int btusb_recv_intr(struct btusb_data *data, void *buffer, int count) 499 { 500 struct sk_buff *skb; 501 int err = 0; 502 503 spin_lock(&data->rxlock); 504 skb = data->evt_skb; 505 506 while (count) { 507 int len; 508 509 if (!skb) { 510 skb = bt_skb_alloc(HCI_MAX_EVENT_SIZE, GFP_ATOMIC); 511 if (!skb) { 512 err = -ENOMEM; 513 break; 514 } 515 516 hci_skb_pkt_type(skb) = HCI_EVENT_PKT; 517 hci_skb_expect(skb) = HCI_EVENT_HDR_SIZE; 518 } 519 520 len = min_t(uint, hci_skb_expect(skb), count); 521 skb_put_data(skb, buffer, len); 522 523 count -= len; 524 buffer += len; 525 hci_skb_expect(skb) -= len; 526 527 if (skb->len == HCI_EVENT_HDR_SIZE) { 528 /* Complete event header */ 529 hci_skb_expect(skb) = hci_event_hdr(skb)->plen; 530 531 if (skb_tailroom(skb) < hci_skb_expect(skb)) { 532 kfree_skb(skb); 533 skb = NULL; 534 535 err = -EILSEQ; 536 break; 537 } 538 } 539 540 if (!hci_skb_expect(skb)) { 541 /* Complete frame */ 542 data->recv_event(data->hdev, skb); 543 skb = NULL; 544 } 545 } 546 547 data->evt_skb = skb; 548 spin_unlock(&data->rxlock); 549 550 return err; 551 } 552 553 static int btusb_recv_bulk(struct btusb_data *data, void *buffer, int count) 554 { 555 struct sk_buff *skb; 556 int err = 0; 557 558 spin_lock(&data->rxlock); 559 skb = data->acl_skb; 560 561 while (count) { 562 int len; 563 564 if (!skb) { 565 skb = bt_skb_alloc(HCI_MAX_FRAME_SIZE, GFP_ATOMIC); 566 if (!skb) { 567 err = -ENOMEM; 568 break; 569 } 570 571 hci_skb_pkt_type(skb) = HCI_ACLDATA_PKT; 572 hci_skb_expect(skb) = HCI_ACL_HDR_SIZE; 573 } 574 575 len = min_t(uint, hci_skb_expect(skb), count); 576 skb_put_data(skb, buffer, len); 577 578 count -= len; 579 buffer += len; 580 hci_skb_expect(skb) -= len; 581 582 if (skb->len == HCI_ACL_HDR_SIZE) { 583 __le16 dlen = hci_acl_hdr(skb)->dlen; 584 585 /* Complete ACL header */ 586 hci_skb_expect(skb) = __le16_to_cpu(dlen); 587 588 if (skb_tailroom(skb) < hci_skb_expect(skb)) { 589 kfree_skb(skb); 590 skb = NULL; 591 592 err = -EILSEQ; 593 break; 594 } 595 } 596 597 if (!hci_skb_expect(skb)) { 598 /* Complete frame */ 599 hci_recv_frame(data->hdev, skb); 600 skb = NULL; 601 } 602 } 603 604 data->acl_skb = skb; 605 spin_unlock(&data->rxlock); 606 607 return err; 608 } 609 610 static int btusb_recv_isoc(struct btusb_data *data, void *buffer, int count) 611 { 612 struct sk_buff *skb; 613 int err = 0; 614 615 spin_lock(&data->rxlock); 616 skb = data->sco_skb; 617 618 while (count) { 619 int len; 620 621 if (!skb) { 622 skb = bt_skb_alloc(HCI_MAX_SCO_SIZE, GFP_ATOMIC); 623 if (!skb) { 624 err = -ENOMEM; 625 break; 626 } 627 628 hci_skb_pkt_type(skb) = HCI_SCODATA_PKT; 629 hci_skb_expect(skb) = HCI_SCO_HDR_SIZE; 630 } 631 632 len = min_t(uint, hci_skb_expect(skb), count); 633 skb_put_data(skb, buffer, len); 634 635 count -= len; 636 buffer += len; 637 hci_skb_expect(skb) -= len; 638 639 if (skb->len == HCI_SCO_HDR_SIZE) { 640 /* Complete SCO header */ 641 hci_skb_expect(skb) = hci_sco_hdr(skb)->dlen; 642 643 if (skb_tailroom(skb) < hci_skb_expect(skb)) { 644 kfree_skb(skb); 645 skb = NULL; 646 647 err = -EILSEQ; 648 break; 649 } 650 } 651 652 if (!hci_skb_expect(skb)) { 653 /* Complete frame */ 654 hci_recv_frame(data->hdev, skb); 655 skb = NULL; 656 } 657 } 658 659 data->sco_skb = skb; 660 spin_unlock(&data->rxlock); 661 662 return err; 663 } 664 665 static void btusb_intr_complete(struct urb *urb) 666 { 667 struct hci_dev *hdev = urb->context; 668 struct btusb_data *data = hci_get_drvdata(hdev); 669 int err; 670 671 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status, 672 urb->actual_length); 673 674 if (!test_bit(HCI_RUNNING, &hdev->flags)) 675 return; 676 677 if (urb->status == 0) { 678 hdev->stat.byte_rx += urb->actual_length; 679 680 if (btusb_recv_intr(data, urb->transfer_buffer, 681 urb->actual_length) < 0) { 682 bt_dev_err(hdev, "corrupted event packet"); 683 hdev->stat.err_rx++; 684 } 685 } else if (urb->status == -ENOENT) { 686 /* Avoid suspend failed when usb_kill_urb */ 687 return; 688 } 689 690 if (!test_bit(BTUSB_INTR_RUNNING, &data->flags)) 691 return; 692 693 usb_mark_last_busy(data->udev); 694 usb_anchor_urb(urb, &data->intr_anchor); 695 696 err = usb_submit_urb(urb, GFP_ATOMIC); 697 if (err < 0) { 698 /* -EPERM: urb is being killed; 699 * -ENODEV: device got disconnected 700 */ 701 if (err != -EPERM && err != -ENODEV) 702 bt_dev_err(hdev, "urb %p failed to resubmit (%d)", 703 urb, -err); 704 usb_unanchor_urb(urb); 705 } 706 } 707 708 static int btusb_submit_intr_urb(struct hci_dev *hdev, gfp_t mem_flags) 709 { 710 struct btusb_data *data = hci_get_drvdata(hdev); 711 struct urb *urb; 712 unsigned char *buf; 713 unsigned int pipe; 714 int err, size; 715 716 BT_DBG("%s", hdev->name); 717 718 if (!data->intr_ep) 719 return -ENODEV; 720 721 urb = usb_alloc_urb(0, mem_flags); 722 if (!urb) 723 return -ENOMEM; 724 725 size = le16_to_cpu(data->intr_ep->wMaxPacketSize); 726 727 buf = kmalloc(size, mem_flags); 728 if (!buf) { 729 usb_free_urb(urb); 730 return -ENOMEM; 731 } 732 733 pipe = usb_rcvintpipe(data->udev, data->intr_ep->bEndpointAddress); 734 735 usb_fill_int_urb(urb, data->udev, pipe, buf, size, 736 btusb_intr_complete, hdev, data->intr_ep->bInterval); 737 738 urb->transfer_flags |= URB_FREE_BUFFER; 739 740 usb_anchor_urb(urb, &data->intr_anchor); 741 742 err = usb_submit_urb(urb, mem_flags); 743 if (err < 0) { 744 if (err != -EPERM && err != -ENODEV) 745 bt_dev_err(hdev, "urb %p submission failed (%d)", 746 urb, -err); 747 usb_unanchor_urb(urb); 748 } 749 750 usb_free_urb(urb); 751 752 return err; 753 } 754 755 static void btusb_bulk_complete(struct urb *urb) 756 { 757 struct hci_dev *hdev = urb->context; 758 struct btusb_data *data = hci_get_drvdata(hdev); 759 int err; 760 761 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status, 762 urb->actual_length); 763 764 if (!test_bit(HCI_RUNNING, &hdev->flags)) 765 return; 766 767 if (urb->status == 0) { 768 hdev->stat.byte_rx += urb->actual_length; 769 770 if (data->recv_bulk(data, urb->transfer_buffer, 771 urb->actual_length) < 0) { 772 bt_dev_err(hdev, "corrupted ACL packet"); 773 hdev->stat.err_rx++; 774 } 775 } else if (urb->status == -ENOENT) { 776 /* Avoid suspend failed when usb_kill_urb */ 777 return; 778 } 779 780 if (!test_bit(BTUSB_BULK_RUNNING, &data->flags)) 781 return; 782 783 usb_anchor_urb(urb, &data->bulk_anchor); 784 usb_mark_last_busy(data->udev); 785 786 err = usb_submit_urb(urb, GFP_ATOMIC); 787 if (err < 0) { 788 /* -EPERM: urb is being killed; 789 * -ENODEV: device got disconnected 790 */ 791 if (err != -EPERM && err != -ENODEV) 792 bt_dev_err(hdev, "urb %p failed to resubmit (%d)", 793 urb, -err); 794 usb_unanchor_urb(urb); 795 } 796 } 797 798 static int btusb_submit_bulk_urb(struct hci_dev *hdev, gfp_t mem_flags) 799 { 800 struct btusb_data *data = hci_get_drvdata(hdev); 801 struct urb *urb; 802 unsigned char *buf; 803 unsigned int pipe; 804 int err, size = HCI_MAX_FRAME_SIZE; 805 806 BT_DBG("%s", hdev->name); 807 808 if (!data->bulk_rx_ep) 809 return -ENODEV; 810 811 urb = usb_alloc_urb(0, mem_flags); 812 if (!urb) 813 return -ENOMEM; 814 815 buf = kmalloc(size, mem_flags); 816 if (!buf) { 817 usb_free_urb(urb); 818 return -ENOMEM; 819 } 820 821 pipe = usb_rcvbulkpipe(data->udev, data->bulk_rx_ep->bEndpointAddress); 822 823 usb_fill_bulk_urb(urb, data->udev, pipe, buf, size, 824 btusb_bulk_complete, hdev); 825 826 urb->transfer_flags |= URB_FREE_BUFFER; 827 828 usb_mark_last_busy(data->udev); 829 usb_anchor_urb(urb, &data->bulk_anchor); 830 831 err = usb_submit_urb(urb, mem_flags); 832 if (err < 0) { 833 if (err != -EPERM && err != -ENODEV) 834 bt_dev_err(hdev, "urb %p submission failed (%d)", 835 urb, -err); 836 usb_unanchor_urb(urb); 837 } 838 839 usb_free_urb(urb); 840 841 return err; 842 } 843 844 static void btusb_isoc_complete(struct urb *urb) 845 { 846 struct hci_dev *hdev = urb->context; 847 struct btusb_data *data = hci_get_drvdata(hdev); 848 int i, err; 849 850 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status, 851 urb->actual_length); 852 853 if (!test_bit(HCI_RUNNING, &hdev->flags)) 854 return; 855 856 if (urb->status == 0) { 857 for (i = 0; i < urb->number_of_packets; i++) { 858 unsigned int offset = urb->iso_frame_desc[i].offset; 859 unsigned int length = urb->iso_frame_desc[i].actual_length; 860 861 if (urb->iso_frame_desc[i].status) 862 continue; 863 864 hdev->stat.byte_rx += length; 865 866 if (btusb_recv_isoc(data, urb->transfer_buffer + offset, 867 length) < 0) { 868 bt_dev_err(hdev, "corrupted SCO packet"); 869 hdev->stat.err_rx++; 870 } 871 } 872 } else if (urb->status == -ENOENT) { 873 /* Avoid suspend failed when usb_kill_urb */ 874 return; 875 } 876 877 if (!test_bit(BTUSB_ISOC_RUNNING, &data->flags)) 878 return; 879 880 usb_anchor_urb(urb, &data->isoc_anchor); 881 882 err = usb_submit_urb(urb, GFP_ATOMIC); 883 if (err < 0) { 884 /* -EPERM: urb is being killed; 885 * -ENODEV: device got disconnected 886 */ 887 if (err != -EPERM && err != -ENODEV) 888 bt_dev_err(hdev, "urb %p failed to resubmit (%d)", 889 urb, -err); 890 usb_unanchor_urb(urb); 891 } 892 } 893 894 static inline void __fill_isoc_descriptor(struct urb *urb, int len, int mtu) 895 { 896 int i, offset = 0; 897 898 BT_DBG("len %d mtu %d", len, mtu); 899 900 for (i = 0; i < BTUSB_MAX_ISOC_FRAMES && len >= mtu; 901 i++, offset += mtu, len -= mtu) { 902 urb->iso_frame_desc[i].offset = offset; 903 urb->iso_frame_desc[i].length = mtu; 904 } 905 906 if (len && i < BTUSB_MAX_ISOC_FRAMES) { 907 urb->iso_frame_desc[i].offset = offset; 908 urb->iso_frame_desc[i].length = len; 909 i++; 910 } 911 912 urb->number_of_packets = i; 913 } 914 915 static int btusb_submit_isoc_urb(struct hci_dev *hdev, gfp_t mem_flags) 916 { 917 struct btusb_data *data = hci_get_drvdata(hdev); 918 struct urb *urb; 919 unsigned char *buf; 920 unsigned int pipe; 921 int err, size; 922 923 BT_DBG("%s", hdev->name); 924 925 if (!data->isoc_rx_ep) 926 return -ENODEV; 927 928 urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, mem_flags); 929 if (!urb) 930 return -ENOMEM; 931 932 size = le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize) * 933 BTUSB_MAX_ISOC_FRAMES; 934 935 buf = kmalloc(size, mem_flags); 936 if (!buf) { 937 usb_free_urb(urb); 938 return -ENOMEM; 939 } 940 941 pipe = usb_rcvisocpipe(data->udev, data->isoc_rx_ep->bEndpointAddress); 942 943 usb_fill_int_urb(urb, data->udev, pipe, buf, size, btusb_isoc_complete, 944 hdev, data->isoc_rx_ep->bInterval); 945 946 urb->transfer_flags = URB_FREE_BUFFER | URB_ISO_ASAP; 947 948 __fill_isoc_descriptor(urb, size, 949 le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize)); 950 951 usb_anchor_urb(urb, &data->isoc_anchor); 952 953 err = usb_submit_urb(urb, mem_flags); 954 if (err < 0) { 955 if (err != -EPERM && err != -ENODEV) 956 bt_dev_err(hdev, "urb %p submission failed (%d)", 957 urb, -err); 958 usb_unanchor_urb(urb); 959 } 960 961 usb_free_urb(urb); 962 963 return err; 964 } 965 966 static void btusb_diag_complete(struct urb *urb) 967 { 968 struct hci_dev *hdev = urb->context; 969 struct btusb_data *data = hci_get_drvdata(hdev); 970 int err; 971 972 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status, 973 urb->actual_length); 974 975 if (urb->status == 0) { 976 struct sk_buff *skb; 977 978 skb = bt_skb_alloc(urb->actual_length, GFP_ATOMIC); 979 if (skb) { 980 skb_put_data(skb, urb->transfer_buffer, 981 urb->actual_length); 982 hci_recv_diag(hdev, skb); 983 } 984 } else if (urb->status == -ENOENT) { 985 /* Avoid suspend failed when usb_kill_urb */ 986 return; 987 } 988 989 if (!test_bit(BTUSB_DIAG_RUNNING, &data->flags)) 990 return; 991 992 usb_anchor_urb(urb, &data->diag_anchor); 993 usb_mark_last_busy(data->udev); 994 995 err = usb_submit_urb(urb, GFP_ATOMIC); 996 if (err < 0) { 997 /* -EPERM: urb is being killed; 998 * -ENODEV: device got disconnected 999 */ 1000 if (err != -EPERM && err != -ENODEV) 1001 bt_dev_err(hdev, "urb %p failed to resubmit (%d)", 1002 urb, -err); 1003 usb_unanchor_urb(urb); 1004 } 1005 } 1006 1007 static int btusb_submit_diag_urb(struct hci_dev *hdev, gfp_t mem_flags) 1008 { 1009 struct btusb_data *data = hci_get_drvdata(hdev); 1010 struct urb *urb; 1011 unsigned char *buf; 1012 unsigned int pipe; 1013 int err, size = HCI_MAX_FRAME_SIZE; 1014 1015 BT_DBG("%s", hdev->name); 1016 1017 if (!data->diag_rx_ep) 1018 return -ENODEV; 1019 1020 urb = usb_alloc_urb(0, mem_flags); 1021 if (!urb) 1022 return -ENOMEM; 1023 1024 buf = kmalloc(size, mem_flags); 1025 if (!buf) { 1026 usb_free_urb(urb); 1027 return -ENOMEM; 1028 } 1029 1030 pipe = usb_rcvbulkpipe(data->udev, data->diag_rx_ep->bEndpointAddress); 1031 1032 usb_fill_bulk_urb(urb, data->udev, pipe, buf, size, 1033 btusb_diag_complete, hdev); 1034 1035 urb->transfer_flags |= URB_FREE_BUFFER; 1036 1037 usb_mark_last_busy(data->udev); 1038 usb_anchor_urb(urb, &data->diag_anchor); 1039 1040 err = usb_submit_urb(urb, mem_flags); 1041 if (err < 0) { 1042 if (err != -EPERM && err != -ENODEV) 1043 bt_dev_err(hdev, "urb %p submission failed (%d)", 1044 urb, -err); 1045 usb_unanchor_urb(urb); 1046 } 1047 1048 usb_free_urb(urb); 1049 1050 return err; 1051 } 1052 1053 static void btusb_tx_complete(struct urb *urb) 1054 { 1055 struct sk_buff *skb = urb->context; 1056 struct hci_dev *hdev = (struct hci_dev *)skb->dev; 1057 struct btusb_data *data = hci_get_drvdata(hdev); 1058 1059 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status, 1060 urb->actual_length); 1061 1062 if (!test_bit(HCI_RUNNING, &hdev->flags)) 1063 goto done; 1064 1065 if (!urb->status) 1066 hdev->stat.byte_tx += urb->transfer_buffer_length; 1067 else 1068 hdev->stat.err_tx++; 1069 1070 done: 1071 spin_lock(&data->txlock); 1072 data->tx_in_flight--; 1073 spin_unlock(&data->txlock); 1074 1075 kfree(urb->setup_packet); 1076 1077 kfree_skb(skb); 1078 } 1079 1080 static void btusb_isoc_tx_complete(struct urb *urb) 1081 { 1082 struct sk_buff *skb = urb->context; 1083 struct hci_dev *hdev = (struct hci_dev *)skb->dev; 1084 1085 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status, 1086 urb->actual_length); 1087 1088 if (!test_bit(HCI_RUNNING, &hdev->flags)) 1089 goto done; 1090 1091 if (!urb->status) 1092 hdev->stat.byte_tx += urb->transfer_buffer_length; 1093 else 1094 hdev->stat.err_tx++; 1095 1096 done: 1097 kfree(urb->setup_packet); 1098 1099 kfree_skb(skb); 1100 } 1101 1102 static int btusb_open(struct hci_dev *hdev) 1103 { 1104 struct btusb_data *data = hci_get_drvdata(hdev); 1105 int err; 1106 1107 BT_DBG("%s", hdev->name); 1108 1109 err = usb_autopm_get_interface(data->intf); 1110 if (err < 0) 1111 return err; 1112 1113 /* Patching USB firmware files prior to starting any URBs of HCI path 1114 * It is more safe to use USB bulk channel for downloading USB patch 1115 */ 1116 if (data->setup_on_usb) { 1117 err = data->setup_on_usb(hdev); 1118 if (err < 0) 1119 return err; 1120 } 1121 1122 data->intf->needs_remote_wakeup = 1; 1123 /* device specific wakeup source enabled and required for USB 1124 * remote wakeup while host is suspended 1125 */ 1126 device_wakeup_enable(&data->udev->dev); 1127 1128 if (test_and_set_bit(BTUSB_INTR_RUNNING, &data->flags)) 1129 goto done; 1130 1131 err = btusb_submit_intr_urb(hdev, GFP_KERNEL); 1132 if (err < 0) 1133 goto failed; 1134 1135 err = btusb_submit_bulk_urb(hdev, GFP_KERNEL); 1136 if (err < 0) { 1137 usb_kill_anchored_urbs(&data->intr_anchor); 1138 goto failed; 1139 } 1140 1141 set_bit(BTUSB_BULK_RUNNING, &data->flags); 1142 btusb_submit_bulk_urb(hdev, GFP_KERNEL); 1143 1144 if (data->diag) { 1145 if (!btusb_submit_diag_urb(hdev, GFP_KERNEL)) 1146 set_bit(BTUSB_DIAG_RUNNING, &data->flags); 1147 } 1148 1149 done: 1150 usb_autopm_put_interface(data->intf); 1151 return 0; 1152 1153 failed: 1154 clear_bit(BTUSB_INTR_RUNNING, &data->flags); 1155 usb_autopm_put_interface(data->intf); 1156 return err; 1157 } 1158 1159 static void btusb_stop_traffic(struct btusb_data *data) 1160 { 1161 usb_kill_anchored_urbs(&data->intr_anchor); 1162 usb_kill_anchored_urbs(&data->bulk_anchor); 1163 usb_kill_anchored_urbs(&data->isoc_anchor); 1164 usb_kill_anchored_urbs(&data->diag_anchor); 1165 } 1166 1167 static int btusb_close(struct hci_dev *hdev) 1168 { 1169 struct btusb_data *data = hci_get_drvdata(hdev); 1170 int err; 1171 1172 BT_DBG("%s", hdev->name); 1173 1174 cancel_work_sync(&data->work); 1175 cancel_work_sync(&data->waker); 1176 1177 clear_bit(BTUSB_ISOC_RUNNING, &data->flags); 1178 clear_bit(BTUSB_BULK_RUNNING, &data->flags); 1179 clear_bit(BTUSB_INTR_RUNNING, &data->flags); 1180 clear_bit(BTUSB_DIAG_RUNNING, &data->flags); 1181 1182 btusb_stop_traffic(data); 1183 btusb_free_frags(data); 1184 1185 err = usb_autopm_get_interface(data->intf); 1186 if (err < 0) 1187 goto failed; 1188 1189 data->intf->needs_remote_wakeup = 0; 1190 device_wakeup_disable(&data->udev->dev); 1191 usb_autopm_put_interface(data->intf); 1192 1193 failed: 1194 usb_scuttle_anchored_urbs(&data->deferred); 1195 return 0; 1196 } 1197 1198 static int btusb_flush(struct hci_dev *hdev) 1199 { 1200 struct btusb_data *data = hci_get_drvdata(hdev); 1201 1202 BT_DBG("%s", hdev->name); 1203 1204 usb_kill_anchored_urbs(&data->tx_anchor); 1205 btusb_free_frags(data); 1206 1207 return 0; 1208 } 1209 1210 static struct urb *alloc_ctrl_urb(struct hci_dev *hdev, struct sk_buff *skb) 1211 { 1212 struct btusb_data *data = hci_get_drvdata(hdev); 1213 struct usb_ctrlrequest *dr; 1214 struct urb *urb; 1215 unsigned int pipe; 1216 1217 urb = usb_alloc_urb(0, GFP_KERNEL); 1218 if (!urb) 1219 return ERR_PTR(-ENOMEM); 1220 1221 dr = kmalloc(sizeof(*dr), GFP_KERNEL); 1222 if (!dr) { 1223 usb_free_urb(urb); 1224 return ERR_PTR(-ENOMEM); 1225 } 1226 1227 dr->bRequestType = data->cmdreq_type; 1228 dr->bRequest = data->cmdreq; 1229 dr->wIndex = 0; 1230 dr->wValue = 0; 1231 dr->wLength = __cpu_to_le16(skb->len); 1232 1233 pipe = usb_sndctrlpipe(data->udev, 0x00); 1234 1235 usb_fill_control_urb(urb, data->udev, pipe, (void *)dr, 1236 skb->data, skb->len, btusb_tx_complete, skb); 1237 1238 skb->dev = (void *)hdev; 1239 1240 return urb; 1241 } 1242 1243 static struct urb *alloc_bulk_urb(struct hci_dev *hdev, struct sk_buff *skb) 1244 { 1245 struct btusb_data *data = hci_get_drvdata(hdev); 1246 struct urb *urb; 1247 unsigned int pipe; 1248 1249 if (!data->bulk_tx_ep) 1250 return ERR_PTR(-ENODEV); 1251 1252 urb = usb_alloc_urb(0, GFP_KERNEL); 1253 if (!urb) 1254 return ERR_PTR(-ENOMEM); 1255 1256 pipe = usb_sndbulkpipe(data->udev, data->bulk_tx_ep->bEndpointAddress); 1257 1258 usb_fill_bulk_urb(urb, data->udev, pipe, 1259 skb->data, skb->len, btusb_tx_complete, skb); 1260 1261 skb->dev = (void *)hdev; 1262 1263 return urb; 1264 } 1265 1266 static struct urb *alloc_isoc_urb(struct hci_dev *hdev, struct sk_buff *skb) 1267 { 1268 struct btusb_data *data = hci_get_drvdata(hdev); 1269 struct urb *urb; 1270 unsigned int pipe; 1271 1272 if (!data->isoc_tx_ep) 1273 return ERR_PTR(-ENODEV); 1274 1275 urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, GFP_KERNEL); 1276 if (!urb) 1277 return ERR_PTR(-ENOMEM); 1278 1279 pipe = usb_sndisocpipe(data->udev, data->isoc_tx_ep->bEndpointAddress); 1280 1281 usb_fill_int_urb(urb, data->udev, pipe, 1282 skb->data, skb->len, btusb_isoc_tx_complete, 1283 skb, data->isoc_tx_ep->bInterval); 1284 1285 urb->transfer_flags = URB_ISO_ASAP; 1286 1287 __fill_isoc_descriptor(urb, skb->len, 1288 le16_to_cpu(data->isoc_tx_ep->wMaxPacketSize)); 1289 1290 skb->dev = (void *)hdev; 1291 1292 return urb; 1293 } 1294 1295 static int submit_tx_urb(struct hci_dev *hdev, struct urb *urb) 1296 { 1297 struct btusb_data *data = hci_get_drvdata(hdev); 1298 int err; 1299 1300 usb_anchor_urb(urb, &data->tx_anchor); 1301 1302 err = usb_submit_urb(urb, GFP_KERNEL); 1303 if (err < 0) { 1304 if (err != -EPERM && err != -ENODEV) 1305 bt_dev_err(hdev, "urb %p submission failed (%d)", 1306 urb, -err); 1307 kfree(urb->setup_packet); 1308 usb_unanchor_urb(urb); 1309 } else { 1310 usb_mark_last_busy(data->udev); 1311 } 1312 1313 usb_free_urb(urb); 1314 return err; 1315 } 1316 1317 static int submit_or_queue_tx_urb(struct hci_dev *hdev, struct urb *urb) 1318 { 1319 struct btusb_data *data = hci_get_drvdata(hdev); 1320 unsigned long flags; 1321 bool suspending; 1322 1323 spin_lock_irqsave(&data->txlock, flags); 1324 suspending = test_bit(BTUSB_SUSPENDING, &data->flags); 1325 if (!suspending) 1326 data->tx_in_flight++; 1327 spin_unlock_irqrestore(&data->txlock, flags); 1328 1329 if (!suspending) 1330 return submit_tx_urb(hdev, urb); 1331 1332 usb_anchor_urb(urb, &data->deferred); 1333 schedule_work(&data->waker); 1334 1335 usb_free_urb(urb); 1336 return 0; 1337 } 1338 1339 static int btusb_send_frame(struct hci_dev *hdev, struct sk_buff *skb) 1340 { 1341 struct urb *urb; 1342 1343 BT_DBG("%s", hdev->name); 1344 1345 switch (hci_skb_pkt_type(skb)) { 1346 case HCI_COMMAND_PKT: 1347 urb = alloc_ctrl_urb(hdev, skb); 1348 if (IS_ERR(urb)) 1349 return PTR_ERR(urb); 1350 1351 hdev->stat.cmd_tx++; 1352 return submit_or_queue_tx_urb(hdev, urb); 1353 1354 case HCI_ACLDATA_PKT: 1355 urb = alloc_bulk_urb(hdev, skb); 1356 if (IS_ERR(urb)) 1357 return PTR_ERR(urb); 1358 1359 hdev->stat.acl_tx++; 1360 return submit_or_queue_tx_urb(hdev, urb); 1361 1362 case HCI_SCODATA_PKT: 1363 if (hci_conn_num(hdev, SCO_LINK) < 1) 1364 return -ENODEV; 1365 1366 urb = alloc_isoc_urb(hdev, skb); 1367 if (IS_ERR(urb)) 1368 return PTR_ERR(urb); 1369 1370 hdev->stat.sco_tx++; 1371 return submit_tx_urb(hdev, urb); 1372 } 1373 1374 return -EILSEQ; 1375 } 1376 1377 static void btusb_notify(struct hci_dev *hdev, unsigned int evt) 1378 { 1379 struct btusb_data *data = hci_get_drvdata(hdev); 1380 1381 BT_DBG("%s evt %d", hdev->name, evt); 1382 1383 if (hci_conn_num(hdev, SCO_LINK) != data->sco_num) { 1384 data->sco_num = hci_conn_num(hdev, SCO_LINK); 1385 schedule_work(&data->work); 1386 } 1387 } 1388 1389 static inline int __set_isoc_interface(struct hci_dev *hdev, int altsetting) 1390 { 1391 struct btusb_data *data = hci_get_drvdata(hdev); 1392 struct usb_interface *intf = data->isoc; 1393 struct usb_endpoint_descriptor *ep_desc; 1394 int i, err; 1395 1396 if (!data->isoc) 1397 return -ENODEV; 1398 1399 err = usb_set_interface(data->udev, data->isoc_ifnum, altsetting); 1400 if (err < 0) { 1401 bt_dev_err(hdev, "setting interface failed (%d)", -err); 1402 return err; 1403 } 1404 1405 data->isoc_altsetting = altsetting; 1406 1407 data->isoc_tx_ep = NULL; 1408 data->isoc_rx_ep = NULL; 1409 1410 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) { 1411 ep_desc = &intf->cur_altsetting->endpoint[i].desc; 1412 1413 if (!data->isoc_tx_ep && usb_endpoint_is_isoc_out(ep_desc)) { 1414 data->isoc_tx_ep = ep_desc; 1415 continue; 1416 } 1417 1418 if (!data->isoc_rx_ep && usb_endpoint_is_isoc_in(ep_desc)) { 1419 data->isoc_rx_ep = ep_desc; 1420 continue; 1421 } 1422 } 1423 1424 if (!data->isoc_tx_ep || !data->isoc_rx_ep) { 1425 bt_dev_err(hdev, "invalid SCO descriptors"); 1426 return -ENODEV; 1427 } 1428 1429 return 0; 1430 } 1431 1432 static void btusb_work(struct work_struct *work) 1433 { 1434 struct btusb_data *data = container_of(work, struct btusb_data, work); 1435 struct hci_dev *hdev = data->hdev; 1436 int new_alts; 1437 int err; 1438 1439 if (data->sco_num > 0) { 1440 if (!test_bit(BTUSB_DID_ISO_RESUME, &data->flags)) { 1441 err = usb_autopm_get_interface(data->isoc ? data->isoc : data->intf); 1442 if (err < 0) { 1443 clear_bit(BTUSB_ISOC_RUNNING, &data->flags); 1444 usb_kill_anchored_urbs(&data->isoc_anchor); 1445 return; 1446 } 1447 1448 set_bit(BTUSB_DID_ISO_RESUME, &data->flags); 1449 } 1450 1451 if (hdev->voice_setting & 0x0020) { 1452 static const int alts[3] = { 2, 4, 5 }; 1453 1454 new_alts = alts[data->sco_num - 1]; 1455 } else { 1456 new_alts = data->sco_num; 1457 } 1458 1459 if (data->isoc_altsetting != new_alts) { 1460 unsigned long flags; 1461 1462 clear_bit(BTUSB_ISOC_RUNNING, &data->flags); 1463 usb_kill_anchored_urbs(&data->isoc_anchor); 1464 1465 /* When isochronous alternate setting needs to be 1466 * changed, because SCO connection has been added 1467 * or removed, a packet fragment may be left in the 1468 * reassembling state. This could lead to wrongly 1469 * assembled fragments. 1470 * 1471 * Clear outstanding fragment when selecting a new 1472 * alternate setting. 1473 */ 1474 spin_lock_irqsave(&data->rxlock, flags); 1475 kfree_skb(data->sco_skb); 1476 data->sco_skb = NULL; 1477 spin_unlock_irqrestore(&data->rxlock, flags); 1478 1479 if (__set_isoc_interface(hdev, new_alts) < 0) 1480 return; 1481 } 1482 1483 if (!test_and_set_bit(BTUSB_ISOC_RUNNING, &data->flags)) { 1484 if (btusb_submit_isoc_urb(hdev, GFP_KERNEL) < 0) 1485 clear_bit(BTUSB_ISOC_RUNNING, &data->flags); 1486 else 1487 btusb_submit_isoc_urb(hdev, GFP_KERNEL); 1488 } 1489 } else { 1490 clear_bit(BTUSB_ISOC_RUNNING, &data->flags); 1491 usb_kill_anchored_urbs(&data->isoc_anchor); 1492 1493 __set_isoc_interface(hdev, 0); 1494 if (test_and_clear_bit(BTUSB_DID_ISO_RESUME, &data->flags)) 1495 usb_autopm_put_interface(data->isoc ? data->isoc : data->intf); 1496 } 1497 } 1498 1499 static void btusb_waker(struct work_struct *work) 1500 { 1501 struct btusb_data *data = container_of(work, struct btusb_data, waker); 1502 int err; 1503 1504 err = usb_autopm_get_interface(data->intf); 1505 if (err < 0) 1506 return; 1507 1508 usb_autopm_put_interface(data->intf); 1509 } 1510 1511 static int btusb_setup_bcm92035(struct hci_dev *hdev) 1512 { 1513 struct sk_buff *skb; 1514 u8 val = 0x00; 1515 1516 BT_DBG("%s", hdev->name); 1517 1518 skb = __hci_cmd_sync(hdev, 0xfc3b, 1, &val, HCI_INIT_TIMEOUT); 1519 if (IS_ERR(skb)) 1520 bt_dev_err(hdev, "BCM92035 command failed (%ld)", PTR_ERR(skb)); 1521 else 1522 kfree_skb(skb); 1523 1524 return 0; 1525 } 1526 1527 static int btusb_setup_csr(struct hci_dev *hdev) 1528 { 1529 struct hci_rp_read_local_version *rp; 1530 struct sk_buff *skb; 1531 1532 BT_DBG("%s", hdev->name); 1533 1534 skb = __hci_cmd_sync(hdev, HCI_OP_READ_LOCAL_VERSION, 0, NULL, 1535 HCI_INIT_TIMEOUT); 1536 if (IS_ERR(skb)) { 1537 int err = PTR_ERR(skb); 1538 bt_dev_err(hdev, "CSR: Local version failed (%d)", err); 1539 return err; 1540 } 1541 1542 if (skb->len != sizeof(struct hci_rp_read_local_version)) { 1543 bt_dev_err(hdev, "CSR: Local version length mismatch"); 1544 kfree_skb(skb); 1545 return -EIO; 1546 } 1547 1548 rp = (struct hci_rp_read_local_version *)skb->data; 1549 1550 /* Detect controllers which aren't real CSR ones. */ 1551 if (le16_to_cpu(rp->manufacturer) != 10 || 1552 le16_to_cpu(rp->lmp_subver) == 0x0c5c) { 1553 /* Clear the reset quirk since this is not an actual 1554 * early Bluetooth 1.1 device from CSR. 1555 */ 1556 clear_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks); 1557 1558 /* These fake CSR controllers have all a broken 1559 * stored link key handling and so just disable it. 1560 */ 1561 set_bit(HCI_QUIRK_BROKEN_STORED_LINK_KEY, &hdev->quirks); 1562 } 1563 1564 kfree_skb(skb); 1565 1566 return 0; 1567 } 1568 1569 static const struct firmware *btusb_setup_intel_get_fw(struct hci_dev *hdev, 1570 struct intel_version *ver) 1571 { 1572 const struct firmware *fw; 1573 char fwname[64]; 1574 int ret; 1575 1576 snprintf(fwname, sizeof(fwname), 1577 "intel/ibt-hw-%x.%x.%x-fw-%x.%x.%x.%x.%x.bseq", 1578 ver->hw_platform, ver->hw_variant, ver->hw_revision, 1579 ver->fw_variant, ver->fw_revision, ver->fw_build_num, 1580 ver->fw_build_ww, ver->fw_build_yy); 1581 1582 ret = request_firmware(&fw, fwname, &hdev->dev); 1583 if (ret < 0) { 1584 if (ret == -EINVAL) { 1585 BT_ERR("%s Intel firmware file request failed (%d)", 1586 hdev->name, ret); 1587 return NULL; 1588 } 1589 1590 BT_ERR("%s failed to open Intel firmware file: %s(%d)", 1591 hdev->name, fwname, ret); 1592 1593 /* If the correct firmware patch file is not found, use the 1594 * default firmware patch file instead 1595 */ 1596 snprintf(fwname, sizeof(fwname), "intel/ibt-hw-%x.%x.bseq", 1597 ver->hw_platform, ver->hw_variant); 1598 if (request_firmware(&fw, fwname, &hdev->dev) < 0) { 1599 BT_ERR("%s failed to open default Intel fw file: %s", 1600 hdev->name, fwname); 1601 return NULL; 1602 } 1603 } 1604 1605 bt_dev_info(hdev, "Intel Bluetooth firmware file: %s", fwname); 1606 1607 return fw; 1608 } 1609 1610 static int btusb_setup_intel_patching(struct hci_dev *hdev, 1611 const struct firmware *fw, 1612 const u8 **fw_ptr, int *disable_patch) 1613 { 1614 struct sk_buff *skb; 1615 struct hci_command_hdr *cmd; 1616 const u8 *cmd_param; 1617 struct hci_event_hdr *evt = NULL; 1618 const u8 *evt_param = NULL; 1619 int remain = fw->size - (*fw_ptr - fw->data); 1620 1621 /* The first byte indicates the types of the patch command or event. 1622 * 0x01 means HCI command and 0x02 is HCI event. If the first bytes 1623 * in the current firmware buffer doesn't start with 0x01 or 1624 * the size of remain buffer is smaller than HCI command header, 1625 * the firmware file is corrupted and it should stop the patching 1626 * process. 1627 */ 1628 if (remain > HCI_COMMAND_HDR_SIZE && *fw_ptr[0] != 0x01) { 1629 BT_ERR("%s Intel fw corrupted: invalid cmd read", hdev->name); 1630 return -EINVAL; 1631 } 1632 (*fw_ptr)++; 1633 remain--; 1634 1635 cmd = (struct hci_command_hdr *)(*fw_ptr); 1636 *fw_ptr += sizeof(*cmd); 1637 remain -= sizeof(*cmd); 1638 1639 /* Ensure that the remain firmware data is long enough than the length 1640 * of command parameter. If not, the firmware file is corrupted. 1641 */ 1642 if (remain < cmd->plen) { 1643 BT_ERR("%s Intel fw corrupted: invalid cmd len", hdev->name); 1644 return -EFAULT; 1645 } 1646 1647 /* If there is a command that loads a patch in the firmware 1648 * file, then enable the patch upon success, otherwise just 1649 * disable the manufacturer mode, for example patch activation 1650 * is not required when the default firmware patch file is used 1651 * because there are no patch data to load. 1652 */ 1653 if (*disable_patch && le16_to_cpu(cmd->opcode) == 0xfc8e) 1654 *disable_patch = 0; 1655 1656 cmd_param = *fw_ptr; 1657 *fw_ptr += cmd->plen; 1658 remain -= cmd->plen; 1659 1660 /* This reads the expected events when the above command is sent to the 1661 * device. Some vendor commands expects more than one events, for 1662 * example command status event followed by vendor specific event. 1663 * For this case, it only keeps the last expected event. so the command 1664 * can be sent with __hci_cmd_sync_ev() which returns the sk_buff of 1665 * last expected event. 1666 */ 1667 while (remain > HCI_EVENT_HDR_SIZE && *fw_ptr[0] == 0x02) { 1668 (*fw_ptr)++; 1669 remain--; 1670 1671 evt = (struct hci_event_hdr *)(*fw_ptr); 1672 *fw_ptr += sizeof(*evt); 1673 remain -= sizeof(*evt); 1674 1675 if (remain < evt->plen) { 1676 BT_ERR("%s Intel fw corrupted: invalid evt len", 1677 hdev->name); 1678 return -EFAULT; 1679 } 1680 1681 evt_param = *fw_ptr; 1682 *fw_ptr += evt->plen; 1683 remain -= evt->plen; 1684 } 1685 1686 /* Every HCI commands in the firmware file has its correspond event. 1687 * If event is not found or remain is smaller than zero, the firmware 1688 * file is corrupted. 1689 */ 1690 if (!evt || !evt_param || remain < 0) { 1691 BT_ERR("%s Intel fw corrupted: invalid evt read", hdev->name); 1692 return -EFAULT; 1693 } 1694 1695 skb = __hci_cmd_sync_ev(hdev, le16_to_cpu(cmd->opcode), cmd->plen, 1696 cmd_param, evt->evt, HCI_INIT_TIMEOUT); 1697 if (IS_ERR(skb)) { 1698 BT_ERR("%s sending Intel patch command (0x%4.4x) failed (%ld)", 1699 hdev->name, cmd->opcode, PTR_ERR(skb)); 1700 return PTR_ERR(skb); 1701 } 1702 1703 /* It ensures that the returned event matches the event data read from 1704 * the firmware file. At fist, it checks the length and then 1705 * the contents of the event. 1706 */ 1707 if (skb->len != evt->plen) { 1708 BT_ERR("%s mismatch event length (opcode 0x%4.4x)", hdev->name, 1709 le16_to_cpu(cmd->opcode)); 1710 kfree_skb(skb); 1711 return -EFAULT; 1712 } 1713 1714 if (memcmp(skb->data, evt_param, evt->plen)) { 1715 BT_ERR("%s mismatch event parameter (opcode 0x%4.4x)", 1716 hdev->name, le16_to_cpu(cmd->opcode)); 1717 kfree_skb(skb); 1718 return -EFAULT; 1719 } 1720 kfree_skb(skb); 1721 1722 return 0; 1723 } 1724 1725 static int btusb_setup_intel(struct hci_dev *hdev) 1726 { 1727 struct sk_buff *skb; 1728 const struct firmware *fw; 1729 const u8 *fw_ptr; 1730 int disable_patch, err; 1731 struct intel_version ver; 1732 1733 BT_DBG("%s", hdev->name); 1734 1735 /* The controller has a bug with the first HCI command sent to it 1736 * returning number of completed commands as zero. This would stall the 1737 * command processing in the Bluetooth core. 1738 * 1739 * As a workaround, send HCI Reset command first which will reset the 1740 * number of completed commands and allow normal command processing 1741 * from now on. 1742 */ 1743 skb = __hci_cmd_sync(hdev, HCI_OP_RESET, 0, NULL, HCI_INIT_TIMEOUT); 1744 if (IS_ERR(skb)) { 1745 BT_ERR("%s sending initial HCI reset command failed (%ld)", 1746 hdev->name, PTR_ERR(skb)); 1747 return PTR_ERR(skb); 1748 } 1749 kfree_skb(skb); 1750 1751 /* Read Intel specific controller version first to allow selection of 1752 * which firmware file to load. 1753 * 1754 * The returned information are hardware variant and revision plus 1755 * firmware variant, revision and build number. 1756 */ 1757 err = btintel_read_version(hdev, &ver); 1758 if (err) 1759 return err; 1760 1761 bt_dev_info(hdev, "read Intel version: %02x%02x%02x%02x%02x%02x%02x%02x%02x", 1762 ver.hw_platform, ver.hw_variant, ver.hw_revision, 1763 ver.fw_variant, ver.fw_revision, ver.fw_build_num, 1764 ver.fw_build_ww, ver.fw_build_yy, ver.fw_patch_num); 1765 1766 /* fw_patch_num indicates the version of patch the device currently 1767 * have. If there is no patch data in the device, it is always 0x00. 1768 * So, if it is other than 0x00, no need to patch the device again. 1769 */ 1770 if (ver.fw_patch_num) { 1771 bt_dev_info(hdev, "Intel device is already patched. " 1772 "patch num: %02x", ver.fw_patch_num); 1773 goto complete; 1774 } 1775 1776 /* Opens the firmware patch file based on the firmware version read 1777 * from the controller. If it fails to open the matching firmware 1778 * patch file, it tries to open the default firmware patch file. 1779 * If no patch file is found, allow the device to operate without 1780 * a patch. 1781 */ 1782 fw = btusb_setup_intel_get_fw(hdev, &ver); 1783 if (!fw) 1784 goto complete; 1785 fw_ptr = fw->data; 1786 1787 /* Enable the manufacturer mode of the controller. 1788 * Only while this mode is enabled, the driver can download the 1789 * firmware patch data and configuration parameters. 1790 */ 1791 err = btintel_enter_mfg(hdev); 1792 if (err) { 1793 release_firmware(fw); 1794 return err; 1795 } 1796 1797 disable_patch = 1; 1798 1799 /* The firmware data file consists of list of Intel specific HCI 1800 * commands and its expected events. The first byte indicates the 1801 * type of the message, either HCI command or HCI event. 1802 * 1803 * It reads the command and its expected event from the firmware file, 1804 * and send to the controller. Once __hci_cmd_sync_ev() returns, 1805 * the returned event is compared with the event read from the firmware 1806 * file and it will continue until all the messages are downloaded to 1807 * the controller. 1808 * 1809 * Once the firmware patching is completed successfully, 1810 * the manufacturer mode is disabled with reset and activating the 1811 * downloaded patch. 1812 * 1813 * If the firmware patching fails, the manufacturer mode is 1814 * disabled with reset and deactivating the patch. 1815 * 1816 * If the default patch file is used, no reset is done when disabling 1817 * the manufacturer. 1818 */ 1819 while (fw->size > fw_ptr - fw->data) { 1820 int ret; 1821 1822 ret = btusb_setup_intel_patching(hdev, fw, &fw_ptr, 1823 &disable_patch); 1824 if (ret < 0) 1825 goto exit_mfg_deactivate; 1826 } 1827 1828 release_firmware(fw); 1829 1830 if (disable_patch) 1831 goto exit_mfg_disable; 1832 1833 /* Patching completed successfully and disable the manufacturer mode 1834 * with reset and activate the downloaded firmware patches. 1835 */ 1836 err = btintel_exit_mfg(hdev, true, true); 1837 if (err) 1838 return err; 1839 1840 bt_dev_info(hdev, "Intel firmware patch completed and activated"); 1841 1842 goto complete; 1843 1844 exit_mfg_disable: 1845 /* Disable the manufacturer mode without reset */ 1846 err = btintel_exit_mfg(hdev, false, false); 1847 if (err) 1848 return err; 1849 1850 bt_dev_info(hdev, "Intel firmware patch completed"); 1851 1852 goto complete; 1853 1854 exit_mfg_deactivate: 1855 release_firmware(fw); 1856 1857 /* Patching failed. Disable the manufacturer mode with reset and 1858 * deactivate the downloaded firmware patches. 1859 */ 1860 err = btintel_exit_mfg(hdev, true, false); 1861 if (err) 1862 return err; 1863 1864 bt_dev_info(hdev, "Intel firmware patch completed and deactivated"); 1865 1866 complete: 1867 /* Set the event mask for Intel specific vendor events. This enables 1868 * a few extra events that are useful during general operation. 1869 */ 1870 btintel_set_event_mask_mfg(hdev, false); 1871 1872 btintel_check_bdaddr(hdev); 1873 return 0; 1874 } 1875 1876 static int inject_cmd_complete(struct hci_dev *hdev, __u16 opcode) 1877 { 1878 struct sk_buff *skb; 1879 struct hci_event_hdr *hdr; 1880 struct hci_ev_cmd_complete *evt; 1881 1882 skb = bt_skb_alloc(sizeof(*hdr) + sizeof(*evt) + 1, GFP_ATOMIC); 1883 if (!skb) 1884 return -ENOMEM; 1885 1886 hdr = skb_put(skb, sizeof(*hdr)); 1887 hdr->evt = HCI_EV_CMD_COMPLETE; 1888 hdr->plen = sizeof(*evt) + 1; 1889 1890 evt = skb_put(skb, sizeof(*evt)); 1891 evt->ncmd = 0x01; 1892 evt->opcode = cpu_to_le16(opcode); 1893 1894 skb_put_u8(skb, 0x00); 1895 1896 hci_skb_pkt_type(skb) = HCI_EVENT_PKT; 1897 1898 return hci_recv_frame(hdev, skb); 1899 } 1900 1901 static int btusb_recv_bulk_intel(struct btusb_data *data, void *buffer, 1902 int count) 1903 { 1904 /* When the device is in bootloader mode, then it can send 1905 * events via the bulk endpoint. These events are treated the 1906 * same way as the ones received from the interrupt endpoint. 1907 */ 1908 if (test_bit(BTUSB_BOOTLOADER, &data->flags)) 1909 return btusb_recv_intr(data, buffer, count); 1910 1911 return btusb_recv_bulk(data, buffer, count); 1912 } 1913 1914 static void btusb_intel_bootup(struct btusb_data *data, const void *ptr, 1915 unsigned int len) 1916 { 1917 const struct intel_bootup *evt = ptr; 1918 1919 if (len != sizeof(*evt)) 1920 return; 1921 1922 if (test_and_clear_bit(BTUSB_BOOTING, &data->flags)) { 1923 smp_mb__after_atomic(); 1924 wake_up_bit(&data->flags, BTUSB_BOOTING); 1925 } 1926 } 1927 1928 static void btusb_intel_secure_send_result(struct btusb_data *data, 1929 const void *ptr, unsigned int len) 1930 { 1931 const struct intel_secure_send_result *evt = ptr; 1932 1933 if (len != sizeof(*evt)) 1934 return; 1935 1936 if (evt->result) 1937 set_bit(BTUSB_FIRMWARE_FAILED, &data->flags); 1938 1939 if (test_and_clear_bit(BTUSB_DOWNLOADING, &data->flags) && 1940 test_bit(BTUSB_FIRMWARE_LOADED, &data->flags)) { 1941 smp_mb__after_atomic(); 1942 wake_up_bit(&data->flags, BTUSB_DOWNLOADING); 1943 } 1944 } 1945 1946 static int btusb_recv_event_intel(struct hci_dev *hdev, struct sk_buff *skb) 1947 { 1948 struct btusb_data *data = hci_get_drvdata(hdev); 1949 1950 if (test_bit(BTUSB_BOOTLOADER, &data->flags)) { 1951 struct hci_event_hdr *hdr = (void *)skb->data; 1952 1953 if (skb->len > HCI_EVENT_HDR_SIZE && hdr->evt == 0xff && 1954 hdr->plen > 0) { 1955 const void *ptr = skb->data + HCI_EVENT_HDR_SIZE + 1; 1956 unsigned int len = skb->len - HCI_EVENT_HDR_SIZE - 1; 1957 1958 switch (skb->data[2]) { 1959 case 0x02: 1960 /* When switching to the operational firmware 1961 * the device sends a vendor specific event 1962 * indicating that the bootup completed. 1963 */ 1964 btusb_intel_bootup(data, ptr, len); 1965 break; 1966 case 0x06: 1967 /* When the firmware loading completes the 1968 * device sends out a vendor specific event 1969 * indicating the result of the firmware 1970 * loading. 1971 */ 1972 btusb_intel_secure_send_result(data, ptr, len); 1973 break; 1974 } 1975 } 1976 } 1977 1978 return hci_recv_frame(hdev, skb); 1979 } 1980 1981 static int btusb_send_frame_intel(struct hci_dev *hdev, struct sk_buff *skb) 1982 { 1983 struct btusb_data *data = hci_get_drvdata(hdev); 1984 struct urb *urb; 1985 1986 BT_DBG("%s", hdev->name); 1987 1988 switch (hci_skb_pkt_type(skb)) { 1989 case HCI_COMMAND_PKT: 1990 if (test_bit(BTUSB_BOOTLOADER, &data->flags)) { 1991 struct hci_command_hdr *cmd = (void *)skb->data; 1992 __u16 opcode = le16_to_cpu(cmd->opcode); 1993 1994 /* When in bootloader mode and the command 0xfc09 1995 * is received, it needs to be send down the 1996 * bulk endpoint. So allocate a bulk URB instead. 1997 */ 1998 if (opcode == 0xfc09) 1999 urb = alloc_bulk_urb(hdev, skb); 2000 else 2001 urb = alloc_ctrl_urb(hdev, skb); 2002 2003 /* When the 0xfc01 command is issued to boot into 2004 * the operational firmware, it will actually not 2005 * send a command complete event. To keep the flow 2006 * control working inject that event here. 2007 */ 2008 if (opcode == 0xfc01) 2009 inject_cmd_complete(hdev, opcode); 2010 } else { 2011 urb = alloc_ctrl_urb(hdev, skb); 2012 } 2013 if (IS_ERR(urb)) 2014 return PTR_ERR(urb); 2015 2016 hdev->stat.cmd_tx++; 2017 return submit_or_queue_tx_urb(hdev, urb); 2018 2019 case HCI_ACLDATA_PKT: 2020 urb = alloc_bulk_urb(hdev, skb); 2021 if (IS_ERR(urb)) 2022 return PTR_ERR(urb); 2023 2024 hdev->stat.acl_tx++; 2025 return submit_or_queue_tx_urb(hdev, urb); 2026 2027 case HCI_SCODATA_PKT: 2028 if (hci_conn_num(hdev, SCO_LINK) < 1) 2029 return -ENODEV; 2030 2031 urb = alloc_isoc_urb(hdev, skb); 2032 if (IS_ERR(urb)) 2033 return PTR_ERR(urb); 2034 2035 hdev->stat.sco_tx++; 2036 return submit_tx_urb(hdev, urb); 2037 } 2038 2039 return -EILSEQ; 2040 } 2041 2042 static int btusb_setup_intel_new(struct hci_dev *hdev) 2043 { 2044 struct btusb_data *data = hci_get_drvdata(hdev); 2045 struct intel_version ver; 2046 struct intel_boot_params params; 2047 const struct firmware *fw; 2048 u32 boot_param; 2049 char fwname[64]; 2050 ktime_t calltime, delta, rettime; 2051 unsigned long long duration; 2052 int err; 2053 2054 BT_DBG("%s", hdev->name); 2055 2056 /* Set the default boot parameter to 0x0 and it is updated to 2057 * SKU specific boot parameter after reading Intel_Write_Boot_Params 2058 * command while downloading the firmware. 2059 */ 2060 boot_param = 0x00000000; 2061 2062 calltime = ktime_get(); 2063 2064 /* Read the Intel version information to determine if the device 2065 * is in bootloader mode or if it already has operational firmware 2066 * loaded. 2067 */ 2068 err = btintel_read_version(hdev, &ver); 2069 if (err) 2070 return err; 2071 2072 /* The hardware platform number has a fixed value of 0x37 and 2073 * for now only accept this single value. 2074 */ 2075 if (ver.hw_platform != 0x37) { 2076 BT_ERR("%s: Unsupported Intel hardware platform (%u)", 2077 hdev->name, ver.hw_platform); 2078 return -EINVAL; 2079 } 2080 2081 /* Check for supported iBT hardware variants of this firmware 2082 * loading method. 2083 * 2084 * This check has been put in place to ensure correct forward 2085 * compatibility options when newer hardware variants come along. 2086 */ 2087 switch (ver.hw_variant) { 2088 case 0x0b: /* SfP */ 2089 case 0x0c: /* WsP */ 2090 case 0x11: /* JfP */ 2091 case 0x12: /* ThP */ 2092 case 0x13: /* HrP */ 2093 case 0x14: /* QnJ, IcP */ 2094 break; 2095 default: 2096 BT_ERR("%s: Unsupported Intel hardware variant (%u)", 2097 hdev->name, ver.hw_variant); 2098 return -EINVAL; 2099 } 2100 2101 btintel_version_info(hdev, &ver); 2102 2103 /* The firmware variant determines if the device is in bootloader 2104 * mode or is running operational firmware. The value 0x06 identifies 2105 * the bootloader and the value 0x23 identifies the operational 2106 * firmware. 2107 * 2108 * When the operational firmware is already present, then only 2109 * the check for valid Bluetooth device address is needed. This 2110 * determines if the device will be added as configured or 2111 * unconfigured controller. 2112 * 2113 * It is not possible to use the Secure Boot Parameters in this 2114 * case since that command is only available in bootloader mode. 2115 */ 2116 if (ver.fw_variant == 0x23) { 2117 clear_bit(BTUSB_BOOTLOADER, &data->flags); 2118 btintel_check_bdaddr(hdev); 2119 return 0; 2120 } 2121 2122 /* If the device is not in bootloader mode, then the only possible 2123 * choice is to return an error and abort the device initialization. 2124 */ 2125 if (ver.fw_variant != 0x06) { 2126 BT_ERR("%s: Unsupported Intel firmware variant (%u)", 2127 hdev->name, ver.fw_variant); 2128 return -ENODEV; 2129 } 2130 2131 /* Read the secure boot parameters to identify the operating 2132 * details of the bootloader. 2133 */ 2134 err = btintel_read_boot_params(hdev, ¶ms); 2135 if (err) 2136 return err; 2137 2138 /* It is required that every single firmware fragment is acknowledged 2139 * with a command complete event. If the boot parameters indicate 2140 * that this bootloader does not send them, then abort the setup. 2141 */ 2142 if (params.limited_cce != 0x00) { 2143 BT_ERR("%s: Unsupported Intel firmware loading method (%u)", 2144 hdev->name, params.limited_cce); 2145 return -EINVAL; 2146 } 2147 2148 /* If the OTP has no valid Bluetooth device address, then there will 2149 * also be no valid address for the operational firmware. 2150 */ 2151 if (!bacmp(¶ms.otp_bdaddr, BDADDR_ANY)) { 2152 bt_dev_info(hdev, "No device address configured"); 2153 set_bit(HCI_QUIRK_INVALID_BDADDR, &hdev->quirks); 2154 } 2155 2156 /* With this Intel bootloader only the hardware variant and device 2157 * revision information are used to select the right firmware for SfP 2158 * and WsP. 2159 * 2160 * The firmware filename is ibt-<hw_variant>-<dev_revid>.sfi. 2161 * 2162 * Currently the supported hardware variants are: 2163 * 11 (0x0b) for iBT3.0 (LnP/SfP) 2164 * 12 (0x0c) for iBT3.5 (WsP) 2165 * 2166 * For ThP/JfP and for future SKU's, the FW name varies based on HW 2167 * variant, HW revision and FW revision, as these are dependent on CNVi 2168 * and RF Combination. 2169 * 2170 * 17 (0x11) for iBT3.5 (JfP) 2171 * 18 (0x12) for iBT3.5 (ThP) 2172 * 2173 * The firmware file name for these will be 2174 * ibt-<hw_variant>-<hw_revision>-<fw_revision>.sfi. 2175 * 2176 */ 2177 switch (ver.hw_variant) { 2178 case 0x0b: /* SfP */ 2179 case 0x0c: /* WsP */ 2180 snprintf(fwname, sizeof(fwname), "intel/ibt-%u-%u.sfi", 2181 le16_to_cpu(ver.hw_variant), 2182 le16_to_cpu(params.dev_revid)); 2183 break; 2184 case 0x11: /* JfP */ 2185 case 0x12: /* ThP */ 2186 case 0x13: /* HrP */ 2187 case 0x14: /* QnJ, IcP */ 2188 snprintf(fwname, sizeof(fwname), "intel/ibt-%u-%u-%u.sfi", 2189 le16_to_cpu(ver.hw_variant), 2190 le16_to_cpu(ver.hw_revision), 2191 le16_to_cpu(ver.fw_revision)); 2192 break; 2193 default: 2194 BT_ERR("%s: Unsupported Intel firmware naming", hdev->name); 2195 return -EINVAL; 2196 } 2197 2198 err = request_firmware(&fw, fwname, &hdev->dev); 2199 if (err < 0) { 2200 BT_ERR("%s: Failed to load Intel firmware file (%d)", 2201 hdev->name, err); 2202 return err; 2203 } 2204 2205 bt_dev_info(hdev, "Found device firmware: %s", fwname); 2206 2207 /* Save the DDC file name for later use to apply once the firmware 2208 * downloading is done. 2209 */ 2210 switch (ver.hw_variant) { 2211 case 0x0b: /* SfP */ 2212 case 0x0c: /* WsP */ 2213 snprintf(fwname, sizeof(fwname), "intel/ibt-%u-%u.ddc", 2214 le16_to_cpu(ver.hw_variant), 2215 le16_to_cpu(params.dev_revid)); 2216 break; 2217 case 0x11: /* JfP */ 2218 case 0x12: /* ThP */ 2219 case 0x13: /* HrP */ 2220 case 0x14: /* QnJ, IcP */ 2221 snprintf(fwname, sizeof(fwname), "intel/ibt-%u-%u-%u.ddc", 2222 le16_to_cpu(ver.hw_variant), 2223 le16_to_cpu(ver.hw_revision), 2224 le16_to_cpu(ver.fw_revision)); 2225 break; 2226 default: 2227 BT_ERR("%s: Unsupported Intel firmware naming", hdev->name); 2228 return -EINVAL; 2229 } 2230 2231 if (fw->size < 644) { 2232 BT_ERR("%s: Invalid size of firmware file (%zu)", 2233 hdev->name, fw->size); 2234 err = -EBADF; 2235 goto done; 2236 } 2237 2238 set_bit(BTUSB_DOWNLOADING, &data->flags); 2239 2240 /* Start firmware downloading and get boot parameter */ 2241 err = btintel_download_firmware(hdev, fw, &boot_param); 2242 if (err < 0) 2243 goto done; 2244 2245 set_bit(BTUSB_FIRMWARE_LOADED, &data->flags); 2246 2247 bt_dev_info(hdev, "Waiting for firmware download to complete"); 2248 2249 /* Before switching the device into operational mode and with that 2250 * booting the loaded firmware, wait for the bootloader notification 2251 * that all fragments have been successfully received. 2252 * 2253 * When the event processing receives the notification, then the 2254 * BTUSB_DOWNLOADING flag will be cleared. 2255 * 2256 * The firmware loading should not take longer than 5 seconds 2257 * and thus just timeout if that happens and fail the setup 2258 * of this device. 2259 */ 2260 err = wait_on_bit_timeout(&data->flags, BTUSB_DOWNLOADING, 2261 TASK_INTERRUPTIBLE, 2262 msecs_to_jiffies(5000)); 2263 if (err == -EINTR) { 2264 BT_ERR("%s: Firmware loading interrupted", hdev->name); 2265 goto done; 2266 } 2267 2268 if (err) { 2269 BT_ERR("%s: Firmware loading timeout", hdev->name); 2270 err = -ETIMEDOUT; 2271 goto done; 2272 } 2273 2274 if (test_bit(BTUSB_FIRMWARE_FAILED, &data->flags)) { 2275 BT_ERR("%s: Firmware loading failed", hdev->name); 2276 err = -ENOEXEC; 2277 goto done; 2278 } 2279 2280 rettime = ktime_get(); 2281 delta = ktime_sub(rettime, calltime); 2282 duration = (unsigned long long) ktime_to_ns(delta) >> 10; 2283 2284 bt_dev_info(hdev, "Firmware loaded in %llu usecs", duration); 2285 2286 done: 2287 release_firmware(fw); 2288 2289 if (err < 0) 2290 return err; 2291 2292 calltime = ktime_get(); 2293 2294 set_bit(BTUSB_BOOTING, &data->flags); 2295 2296 err = btintel_send_intel_reset(hdev, boot_param); 2297 if (err) 2298 return err; 2299 2300 /* The bootloader will not indicate when the device is ready. This 2301 * is done by the operational firmware sending bootup notification. 2302 * 2303 * Booting into operational firmware should not take longer than 2304 * 1 second. However if that happens, then just fail the setup 2305 * since something went wrong. 2306 */ 2307 bt_dev_info(hdev, "Waiting for device to boot"); 2308 2309 err = wait_on_bit_timeout(&data->flags, BTUSB_BOOTING, 2310 TASK_INTERRUPTIBLE, 2311 msecs_to_jiffies(1000)); 2312 2313 if (err == -EINTR) { 2314 BT_ERR("%s: Device boot interrupted", hdev->name); 2315 return -EINTR; 2316 } 2317 2318 if (err) { 2319 BT_ERR("%s: Device boot timeout", hdev->name); 2320 return -ETIMEDOUT; 2321 } 2322 2323 rettime = ktime_get(); 2324 delta = ktime_sub(rettime, calltime); 2325 duration = (unsigned long long) ktime_to_ns(delta) >> 10; 2326 2327 bt_dev_info(hdev, "Device booted in %llu usecs", duration); 2328 2329 clear_bit(BTUSB_BOOTLOADER, &data->flags); 2330 2331 /* Once the device is running in operational mode, it needs to apply 2332 * the device configuration (DDC) parameters. 2333 * 2334 * The device can work without DDC parameters, so even if it fails 2335 * to load the file, no need to fail the setup. 2336 */ 2337 btintel_load_ddc_config(hdev, fwname); 2338 2339 /* Set the event mask for Intel specific vendor events. This enables 2340 * a few extra events that are useful during general operation. It 2341 * does not enable any debugging related events. 2342 * 2343 * The device will function correctly without these events enabled 2344 * and thus no need to fail the setup. 2345 */ 2346 btintel_set_event_mask(hdev, false); 2347 2348 return 0; 2349 } 2350 2351 static int btusb_shutdown_intel(struct hci_dev *hdev) 2352 { 2353 struct sk_buff *skb; 2354 long ret; 2355 2356 /* Some platforms have an issue with BT LED when the interface is 2357 * down or BT radio is turned off, which takes 5 seconds to BT LED 2358 * goes off. This command turns off the BT LED immediately. 2359 */ 2360 skb = __hci_cmd_sync(hdev, 0xfc3f, 0, NULL, HCI_INIT_TIMEOUT); 2361 if (IS_ERR(skb)) { 2362 ret = PTR_ERR(skb); 2363 BT_ERR("%s: turning off Intel device LED failed (%ld)", 2364 hdev->name, ret); 2365 return ret; 2366 } 2367 kfree_skb(skb); 2368 2369 return 0; 2370 } 2371 2372 #ifdef CONFIG_PM 2373 /* Configure an out-of-band gpio as wake-up pin, if specified in device tree */ 2374 static int marvell_config_oob_wake(struct hci_dev *hdev) 2375 { 2376 struct sk_buff *skb; 2377 struct btusb_data *data = hci_get_drvdata(hdev); 2378 struct device *dev = &data->udev->dev; 2379 u16 pin, gap, opcode; 2380 int ret; 2381 u8 cmd[5]; 2382 2383 /* Move on if no wakeup pin specified */ 2384 if (of_property_read_u16(dev->of_node, "marvell,wakeup-pin", &pin) || 2385 of_property_read_u16(dev->of_node, "marvell,wakeup-gap-ms", &gap)) 2386 return 0; 2387 2388 /* Vendor specific command to configure a GPIO as wake-up pin */ 2389 opcode = hci_opcode_pack(0x3F, 0x59); 2390 cmd[0] = opcode & 0xFF; 2391 cmd[1] = opcode >> 8; 2392 cmd[2] = 2; /* length of parameters that follow */ 2393 cmd[3] = pin; 2394 cmd[4] = gap; /* time in ms, for which wakeup pin should be asserted */ 2395 2396 skb = bt_skb_alloc(sizeof(cmd), GFP_KERNEL); 2397 if (!skb) { 2398 bt_dev_err(hdev, "%s: No memory\n", __func__); 2399 return -ENOMEM; 2400 } 2401 2402 skb_put_data(skb, cmd, sizeof(cmd)); 2403 hci_skb_pkt_type(skb) = HCI_COMMAND_PKT; 2404 2405 ret = btusb_send_frame(hdev, skb); 2406 if (ret) { 2407 bt_dev_err(hdev, "%s: configuration failed\n", __func__); 2408 kfree_skb(skb); 2409 return ret; 2410 } 2411 2412 return 0; 2413 } 2414 #endif 2415 2416 static int btusb_set_bdaddr_marvell(struct hci_dev *hdev, 2417 const bdaddr_t *bdaddr) 2418 { 2419 struct sk_buff *skb; 2420 u8 buf[8]; 2421 long ret; 2422 2423 buf[0] = 0xfe; 2424 buf[1] = sizeof(bdaddr_t); 2425 memcpy(buf + 2, bdaddr, sizeof(bdaddr_t)); 2426 2427 skb = __hci_cmd_sync(hdev, 0xfc22, sizeof(buf), buf, HCI_INIT_TIMEOUT); 2428 if (IS_ERR(skb)) { 2429 ret = PTR_ERR(skb); 2430 bt_dev_err(hdev, "changing Marvell device address failed (%ld)", 2431 ret); 2432 return ret; 2433 } 2434 kfree_skb(skb); 2435 2436 return 0; 2437 } 2438 2439 static int btusb_set_bdaddr_ath3012(struct hci_dev *hdev, 2440 const bdaddr_t *bdaddr) 2441 { 2442 struct sk_buff *skb; 2443 u8 buf[10]; 2444 long ret; 2445 2446 buf[0] = 0x01; 2447 buf[1] = 0x01; 2448 buf[2] = 0x00; 2449 buf[3] = sizeof(bdaddr_t); 2450 memcpy(buf + 4, bdaddr, sizeof(bdaddr_t)); 2451 2452 skb = __hci_cmd_sync(hdev, 0xfc0b, sizeof(buf), buf, HCI_INIT_TIMEOUT); 2453 if (IS_ERR(skb)) { 2454 ret = PTR_ERR(skb); 2455 bt_dev_err(hdev, "Change address command failed (%ld)", ret); 2456 return ret; 2457 } 2458 kfree_skb(skb); 2459 2460 return 0; 2461 } 2462 2463 #define QCA_DFU_PACKET_LEN 4096 2464 2465 #define QCA_GET_TARGET_VERSION 0x09 2466 #define QCA_CHECK_STATUS 0x05 2467 #define QCA_DFU_DOWNLOAD 0x01 2468 2469 #define QCA_SYSCFG_UPDATED 0x40 2470 #define QCA_PATCH_UPDATED 0x80 2471 #define QCA_DFU_TIMEOUT 3000 2472 2473 struct qca_version { 2474 __le32 rom_version; 2475 __le32 patch_version; 2476 __le32 ram_version; 2477 __le32 ref_clock; 2478 __u8 reserved[4]; 2479 } __packed; 2480 2481 struct qca_rampatch_version { 2482 __le16 rom_version; 2483 __le16 patch_version; 2484 } __packed; 2485 2486 struct qca_device_info { 2487 u32 rom_version; 2488 u8 rampatch_hdr; /* length of header in rampatch */ 2489 u8 nvm_hdr; /* length of header in NVM */ 2490 u8 ver_offset; /* offset of version structure in rampatch */ 2491 }; 2492 2493 static const struct qca_device_info qca_devices_table[] = { 2494 { 0x00000100, 20, 4, 10 }, /* Rome 1.0 */ 2495 { 0x00000101, 20, 4, 10 }, /* Rome 1.1 */ 2496 { 0x00000200, 28, 4, 18 }, /* Rome 2.0 */ 2497 { 0x00000201, 28, 4, 18 }, /* Rome 2.1 */ 2498 { 0x00000300, 28, 4, 18 }, /* Rome 3.0 */ 2499 { 0x00000302, 28, 4, 18 }, /* Rome 3.2 */ 2500 }; 2501 2502 static int btusb_qca_send_vendor_req(struct hci_dev *hdev, u8 request, 2503 void *data, u16 size) 2504 { 2505 struct btusb_data *btdata = hci_get_drvdata(hdev); 2506 struct usb_device *udev = btdata->udev; 2507 int pipe, err; 2508 u8 *buf; 2509 2510 buf = kmalloc(size, GFP_KERNEL); 2511 if (!buf) 2512 return -ENOMEM; 2513 2514 /* Found some of USB hosts have IOT issues with ours so that we should 2515 * not wait until HCI layer is ready. 2516 */ 2517 pipe = usb_rcvctrlpipe(udev, 0); 2518 err = usb_control_msg(udev, pipe, request, USB_TYPE_VENDOR | USB_DIR_IN, 2519 0, 0, buf, size, USB_CTRL_SET_TIMEOUT); 2520 if (err < 0) { 2521 bt_dev_err(hdev, "Failed to access otp area (%d)", err); 2522 goto done; 2523 } 2524 2525 memcpy(data, buf, size); 2526 2527 done: 2528 kfree(buf); 2529 2530 return err; 2531 } 2532 2533 static int btusb_setup_qca_download_fw(struct hci_dev *hdev, 2534 const struct firmware *firmware, 2535 size_t hdr_size) 2536 { 2537 struct btusb_data *btdata = hci_get_drvdata(hdev); 2538 struct usb_device *udev = btdata->udev; 2539 size_t count, size, sent = 0; 2540 int pipe, len, err; 2541 u8 *buf; 2542 2543 buf = kmalloc(QCA_DFU_PACKET_LEN, GFP_KERNEL); 2544 if (!buf) 2545 return -ENOMEM; 2546 2547 count = firmware->size; 2548 2549 size = min_t(size_t, count, hdr_size); 2550 memcpy(buf, firmware->data, size); 2551 2552 /* USB patches should go down to controller through USB path 2553 * because binary format fits to go down through USB channel. 2554 * USB control path is for patching headers and USB bulk is for 2555 * patch body. 2556 */ 2557 pipe = usb_sndctrlpipe(udev, 0); 2558 err = usb_control_msg(udev, pipe, QCA_DFU_DOWNLOAD, USB_TYPE_VENDOR, 2559 0, 0, buf, size, USB_CTRL_SET_TIMEOUT); 2560 if (err < 0) { 2561 bt_dev_err(hdev, "Failed to send headers (%d)", err); 2562 goto done; 2563 } 2564 2565 sent += size; 2566 count -= size; 2567 2568 while (count) { 2569 size = min_t(size_t, count, QCA_DFU_PACKET_LEN); 2570 2571 memcpy(buf, firmware->data + sent, size); 2572 2573 pipe = usb_sndbulkpipe(udev, 0x02); 2574 err = usb_bulk_msg(udev, pipe, buf, size, &len, 2575 QCA_DFU_TIMEOUT); 2576 if (err < 0) { 2577 bt_dev_err(hdev, "Failed to send body at %zd of %zd (%d)", 2578 sent, firmware->size, err); 2579 break; 2580 } 2581 2582 if (size != len) { 2583 bt_dev_err(hdev, "Failed to get bulk buffer"); 2584 err = -EILSEQ; 2585 break; 2586 } 2587 2588 sent += size; 2589 count -= size; 2590 } 2591 2592 done: 2593 kfree(buf); 2594 return err; 2595 } 2596 2597 static int btusb_setup_qca_load_rampatch(struct hci_dev *hdev, 2598 struct qca_version *ver, 2599 const struct qca_device_info *info) 2600 { 2601 struct qca_rampatch_version *rver; 2602 const struct firmware *fw; 2603 u32 ver_rom, ver_patch; 2604 u16 rver_rom, rver_patch; 2605 char fwname[64]; 2606 int err; 2607 2608 ver_rom = le32_to_cpu(ver->rom_version); 2609 ver_patch = le32_to_cpu(ver->patch_version); 2610 2611 snprintf(fwname, sizeof(fwname), "qca/rampatch_usb_%08x.bin", ver_rom); 2612 2613 err = request_firmware(&fw, fwname, &hdev->dev); 2614 if (err) { 2615 bt_dev_err(hdev, "failed to request rampatch file: %s (%d)", 2616 fwname, err); 2617 return err; 2618 } 2619 2620 bt_dev_info(hdev, "using rampatch file: %s", fwname); 2621 2622 rver = (struct qca_rampatch_version *)(fw->data + info->ver_offset); 2623 rver_rom = le16_to_cpu(rver->rom_version); 2624 rver_patch = le16_to_cpu(rver->patch_version); 2625 2626 bt_dev_info(hdev, "QCA: patch rome 0x%x build 0x%x, " 2627 "firmware rome 0x%x build 0x%x", 2628 rver_rom, rver_patch, ver_rom, ver_patch); 2629 2630 if (rver_rom != ver_rom || rver_patch <= ver_patch) { 2631 bt_dev_err(hdev, "rampatch file version did not match with firmware"); 2632 err = -EINVAL; 2633 goto done; 2634 } 2635 2636 err = btusb_setup_qca_download_fw(hdev, fw, info->rampatch_hdr); 2637 2638 done: 2639 release_firmware(fw); 2640 2641 return err; 2642 } 2643 2644 static int btusb_setup_qca_load_nvm(struct hci_dev *hdev, 2645 struct qca_version *ver, 2646 const struct qca_device_info *info) 2647 { 2648 const struct firmware *fw; 2649 char fwname[64]; 2650 int err; 2651 2652 snprintf(fwname, sizeof(fwname), "qca/nvm_usb_%08x.bin", 2653 le32_to_cpu(ver->rom_version)); 2654 2655 err = request_firmware(&fw, fwname, &hdev->dev); 2656 if (err) { 2657 bt_dev_err(hdev, "failed to request NVM file: %s (%d)", 2658 fwname, err); 2659 return err; 2660 } 2661 2662 bt_dev_info(hdev, "using NVM file: %s", fwname); 2663 2664 err = btusb_setup_qca_download_fw(hdev, fw, info->nvm_hdr); 2665 2666 release_firmware(fw); 2667 2668 return err; 2669 } 2670 2671 static int btusb_setup_qca(struct hci_dev *hdev) 2672 { 2673 const struct qca_device_info *info = NULL; 2674 struct qca_version ver; 2675 u32 ver_rom; 2676 u8 status; 2677 int i, err; 2678 2679 err = btusb_qca_send_vendor_req(hdev, QCA_GET_TARGET_VERSION, &ver, 2680 sizeof(ver)); 2681 if (err < 0) 2682 return err; 2683 2684 ver_rom = le32_to_cpu(ver.rom_version); 2685 for (i = 0; i < ARRAY_SIZE(qca_devices_table); i++) { 2686 if (ver_rom == qca_devices_table[i].rom_version) 2687 info = &qca_devices_table[i]; 2688 } 2689 if (!info) { 2690 bt_dev_err(hdev, "don't support firmware rome 0x%x", ver_rom); 2691 return -ENODEV; 2692 } 2693 2694 err = btusb_qca_send_vendor_req(hdev, QCA_CHECK_STATUS, &status, 2695 sizeof(status)); 2696 if (err < 0) 2697 return err; 2698 2699 if (!(status & QCA_PATCH_UPDATED)) { 2700 err = btusb_setup_qca_load_rampatch(hdev, &ver, info); 2701 if (err < 0) 2702 return err; 2703 } 2704 2705 if (!(status & QCA_SYSCFG_UPDATED)) { 2706 err = btusb_setup_qca_load_nvm(hdev, &ver, info); 2707 if (err < 0) 2708 return err; 2709 } 2710 2711 return 0; 2712 } 2713 2714 #ifdef CONFIG_BT_HCIBTUSB_BCM 2715 static inline int __set_diag_interface(struct hci_dev *hdev) 2716 { 2717 struct btusb_data *data = hci_get_drvdata(hdev); 2718 struct usb_interface *intf = data->diag; 2719 int i; 2720 2721 if (!data->diag) 2722 return -ENODEV; 2723 2724 data->diag_tx_ep = NULL; 2725 data->diag_rx_ep = NULL; 2726 2727 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) { 2728 struct usb_endpoint_descriptor *ep_desc; 2729 2730 ep_desc = &intf->cur_altsetting->endpoint[i].desc; 2731 2732 if (!data->diag_tx_ep && usb_endpoint_is_bulk_out(ep_desc)) { 2733 data->diag_tx_ep = ep_desc; 2734 continue; 2735 } 2736 2737 if (!data->diag_rx_ep && usb_endpoint_is_bulk_in(ep_desc)) { 2738 data->diag_rx_ep = ep_desc; 2739 continue; 2740 } 2741 } 2742 2743 if (!data->diag_tx_ep || !data->diag_rx_ep) { 2744 bt_dev_err(hdev, "invalid diagnostic descriptors"); 2745 return -ENODEV; 2746 } 2747 2748 return 0; 2749 } 2750 2751 static struct urb *alloc_diag_urb(struct hci_dev *hdev, bool enable) 2752 { 2753 struct btusb_data *data = hci_get_drvdata(hdev); 2754 struct sk_buff *skb; 2755 struct urb *urb; 2756 unsigned int pipe; 2757 2758 if (!data->diag_tx_ep) 2759 return ERR_PTR(-ENODEV); 2760 2761 urb = usb_alloc_urb(0, GFP_KERNEL); 2762 if (!urb) 2763 return ERR_PTR(-ENOMEM); 2764 2765 skb = bt_skb_alloc(2, GFP_KERNEL); 2766 if (!skb) { 2767 usb_free_urb(urb); 2768 return ERR_PTR(-ENOMEM); 2769 } 2770 2771 skb_put_u8(skb, 0xf0); 2772 skb_put_u8(skb, enable); 2773 2774 pipe = usb_sndbulkpipe(data->udev, data->diag_tx_ep->bEndpointAddress); 2775 2776 usb_fill_bulk_urb(urb, data->udev, pipe, 2777 skb->data, skb->len, btusb_tx_complete, skb); 2778 2779 skb->dev = (void *)hdev; 2780 2781 return urb; 2782 } 2783 2784 static int btusb_bcm_set_diag(struct hci_dev *hdev, bool enable) 2785 { 2786 struct btusb_data *data = hci_get_drvdata(hdev); 2787 struct urb *urb; 2788 2789 if (!data->diag) 2790 return -ENODEV; 2791 2792 if (!test_bit(HCI_RUNNING, &hdev->flags)) 2793 return -ENETDOWN; 2794 2795 urb = alloc_diag_urb(hdev, enable); 2796 if (IS_ERR(urb)) 2797 return PTR_ERR(urb); 2798 2799 return submit_or_queue_tx_urb(hdev, urb); 2800 } 2801 #endif 2802 2803 #ifdef CONFIG_PM 2804 static irqreturn_t btusb_oob_wake_handler(int irq, void *priv) 2805 { 2806 struct btusb_data *data = priv; 2807 2808 pm_wakeup_event(&data->udev->dev, 0); 2809 pm_system_wakeup(); 2810 2811 /* Disable only if not already disabled (keep it balanced) */ 2812 if (test_and_clear_bit(BTUSB_OOB_WAKE_ENABLED, &data->flags)) { 2813 disable_irq_nosync(irq); 2814 disable_irq_wake(irq); 2815 } 2816 return IRQ_HANDLED; 2817 } 2818 2819 static const struct of_device_id btusb_match_table[] = { 2820 { .compatible = "usb1286,204e" }, 2821 { } 2822 }; 2823 MODULE_DEVICE_TABLE(of, btusb_match_table); 2824 2825 /* Use an oob wakeup pin? */ 2826 static int btusb_config_oob_wake(struct hci_dev *hdev) 2827 { 2828 struct btusb_data *data = hci_get_drvdata(hdev); 2829 struct device *dev = &data->udev->dev; 2830 int irq, ret; 2831 2832 clear_bit(BTUSB_OOB_WAKE_ENABLED, &data->flags); 2833 2834 if (!of_match_device(btusb_match_table, dev)) 2835 return 0; 2836 2837 /* Move on if no IRQ specified */ 2838 irq = of_irq_get_byname(dev->of_node, "wakeup"); 2839 if (irq <= 0) { 2840 bt_dev_dbg(hdev, "%s: no OOB Wakeup IRQ in DT", __func__); 2841 return 0; 2842 } 2843 2844 ret = devm_request_irq(&hdev->dev, irq, btusb_oob_wake_handler, 2845 0, "OOB Wake-on-BT", data); 2846 if (ret) { 2847 bt_dev_err(hdev, "%s: IRQ request failed", __func__); 2848 return ret; 2849 } 2850 2851 ret = device_init_wakeup(dev, true); 2852 if (ret) { 2853 bt_dev_err(hdev, "%s: failed to init_wakeup", __func__); 2854 return ret; 2855 } 2856 2857 data->oob_wake_irq = irq; 2858 disable_irq(irq); 2859 bt_dev_info(hdev, "OOB Wake-on-BT configured at IRQ %u", irq); 2860 return 0; 2861 } 2862 #endif 2863 2864 static void btusb_check_needs_reset_resume(struct usb_interface *intf) 2865 { 2866 if (dmi_check_system(btusb_needs_reset_resume_table)) 2867 interface_to_usbdev(intf)->quirks |= USB_QUIRK_RESET_RESUME; 2868 } 2869 2870 static int btusb_probe(struct usb_interface *intf, 2871 const struct usb_device_id *id) 2872 { 2873 struct usb_endpoint_descriptor *ep_desc; 2874 struct btusb_data *data; 2875 struct hci_dev *hdev; 2876 unsigned ifnum_base; 2877 int i, err; 2878 2879 BT_DBG("intf %p id %p", intf, id); 2880 2881 /* interface numbers are hardcoded in the spec */ 2882 if (intf->cur_altsetting->desc.bInterfaceNumber != 0) { 2883 if (!(id->driver_info & BTUSB_IFNUM_2)) 2884 return -ENODEV; 2885 if (intf->cur_altsetting->desc.bInterfaceNumber != 2) 2886 return -ENODEV; 2887 } 2888 2889 ifnum_base = intf->cur_altsetting->desc.bInterfaceNumber; 2890 2891 if (!id->driver_info) { 2892 const struct usb_device_id *match; 2893 2894 match = usb_match_id(intf, blacklist_table); 2895 if (match) 2896 id = match; 2897 } 2898 2899 if (id->driver_info == BTUSB_IGNORE) 2900 return -ENODEV; 2901 2902 if (id->driver_info & BTUSB_ATH3012) { 2903 struct usb_device *udev = interface_to_usbdev(intf); 2904 2905 /* Old firmware would otherwise let ath3k driver load 2906 * patch and sysconfig files 2907 */ 2908 if (le16_to_cpu(udev->descriptor.bcdDevice) <= 0x0001) 2909 return -ENODEV; 2910 } 2911 2912 data = devm_kzalloc(&intf->dev, sizeof(*data), GFP_KERNEL); 2913 if (!data) 2914 return -ENOMEM; 2915 2916 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) { 2917 ep_desc = &intf->cur_altsetting->endpoint[i].desc; 2918 2919 if (!data->intr_ep && usb_endpoint_is_int_in(ep_desc)) { 2920 data->intr_ep = ep_desc; 2921 continue; 2922 } 2923 2924 if (!data->bulk_tx_ep && usb_endpoint_is_bulk_out(ep_desc)) { 2925 data->bulk_tx_ep = ep_desc; 2926 continue; 2927 } 2928 2929 if (!data->bulk_rx_ep && usb_endpoint_is_bulk_in(ep_desc)) { 2930 data->bulk_rx_ep = ep_desc; 2931 continue; 2932 } 2933 } 2934 2935 if (!data->intr_ep || !data->bulk_tx_ep || !data->bulk_rx_ep) 2936 return -ENODEV; 2937 2938 if (id->driver_info & BTUSB_AMP) { 2939 data->cmdreq_type = USB_TYPE_CLASS | 0x01; 2940 data->cmdreq = 0x2b; 2941 } else { 2942 data->cmdreq_type = USB_TYPE_CLASS; 2943 data->cmdreq = 0x00; 2944 } 2945 2946 data->udev = interface_to_usbdev(intf); 2947 data->intf = intf; 2948 2949 INIT_WORK(&data->work, btusb_work); 2950 INIT_WORK(&data->waker, btusb_waker); 2951 init_usb_anchor(&data->deferred); 2952 init_usb_anchor(&data->tx_anchor); 2953 spin_lock_init(&data->txlock); 2954 2955 init_usb_anchor(&data->intr_anchor); 2956 init_usb_anchor(&data->bulk_anchor); 2957 init_usb_anchor(&data->isoc_anchor); 2958 init_usb_anchor(&data->diag_anchor); 2959 spin_lock_init(&data->rxlock); 2960 2961 if (id->driver_info & BTUSB_INTEL_NEW) { 2962 data->recv_event = btusb_recv_event_intel; 2963 data->recv_bulk = btusb_recv_bulk_intel; 2964 set_bit(BTUSB_BOOTLOADER, &data->flags); 2965 } else { 2966 data->recv_event = hci_recv_frame; 2967 data->recv_bulk = btusb_recv_bulk; 2968 } 2969 2970 hdev = hci_alloc_dev(); 2971 if (!hdev) 2972 return -ENOMEM; 2973 2974 hdev->bus = HCI_USB; 2975 hci_set_drvdata(hdev, data); 2976 2977 if (id->driver_info & BTUSB_AMP) 2978 hdev->dev_type = HCI_AMP; 2979 else 2980 hdev->dev_type = HCI_PRIMARY; 2981 2982 data->hdev = hdev; 2983 2984 SET_HCIDEV_DEV(hdev, &intf->dev); 2985 2986 hdev->open = btusb_open; 2987 hdev->close = btusb_close; 2988 hdev->flush = btusb_flush; 2989 hdev->send = btusb_send_frame; 2990 hdev->notify = btusb_notify; 2991 2992 #ifdef CONFIG_PM 2993 err = btusb_config_oob_wake(hdev); 2994 if (err) 2995 goto out_free_dev; 2996 2997 /* Marvell devices may need a specific chip configuration */ 2998 if (id->driver_info & BTUSB_MARVELL && data->oob_wake_irq) { 2999 err = marvell_config_oob_wake(hdev); 3000 if (err) 3001 goto out_free_dev; 3002 } 3003 #endif 3004 if (id->driver_info & BTUSB_CW6622) 3005 set_bit(HCI_QUIRK_BROKEN_STORED_LINK_KEY, &hdev->quirks); 3006 3007 if (id->driver_info & BTUSB_BCM2045) 3008 set_bit(HCI_QUIRK_BROKEN_STORED_LINK_KEY, &hdev->quirks); 3009 3010 if (id->driver_info & BTUSB_BCM92035) 3011 hdev->setup = btusb_setup_bcm92035; 3012 3013 #ifdef CONFIG_BT_HCIBTUSB_BCM 3014 if (id->driver_info & BTUSB_BCM_PATCHRAM) { 3015 hdev->manufacturer = 15; 3016 hdev->setup = btbcm_setup_patchram; 3017 hdev->set_diag = btusb_bcm_set_diag; 3018 hdev->set_bdaddr = btbcm_set_bdaddr; 3019 3020 /* Broadcom LM_DIAG Interface numbers are hardcoded */ 3021 data->diag = usb_ifnum_to_if(data->udev, ifnum_base + 2); 3022 } 3023 3024 if (id->driver_info & BTUSB_BCM_APPLE) { 3025 hdev->manufacturer = 15; 3026 hdev->setup = btbcm_setup_apple; 3027 hdev->set_diag = btusb_bcm_set_diag; 3028 3029 /* Broadcom LM_DIAG Interface numbers are hardcoded */ 3030 data->diag = usb_ifnum_to_if(data->udev, ifnum_base + 2); 3031 } 3032 #endif 3033 3034 if (id->driver_info & BTUSB_INTEL) { 3035 hdev->manufacturer = 2; 3036 hdev->setup = btusb_setup_intel; 3037 hdev->shutdown = btusb_shutdown_intel; 3038 hdev->set_diag = btintel_set_diag_mfg; 3039 hdev->set_bdaddr = btintel_set_bdaddr; 3040 set_bit(HCI_QUIRK_STRICT_DUPLICATE_FILTER, &hdev->quirks); 3041 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks); 3042 set_bit(HCI_QUIRK_NON_PERSISTENT_DIAG, &hdev->quirks); 3043 } 3044 3045 if (id->driver_info & BTUSB_INTEL_NEW) { 3046 hdev->manufacturer = 2; 3047 hdev->send = btusb_send_frame_intel; 3048 hdev->setup = btusb_setup_intel_new; 3049 hdev->hw_error = btintel_hw_error; 3050 hdev->set_diag = btintel_set_diag; 3051 hdev->set_bdaddr = btintel_set_bdaddr; 3052 set_bit(HCI_QUIRK_STRICT_DUPLICATE_FILTER, &hdev->quirks); 3053 set_bit(HCI_QUIRK_NON_PERSISTENT_DIAG, &hdev->quirks); 3054 } 3055 3056 if (id->driver_info & BTUSB_MARVELL) 3057 hdev->set_bdaddr = btusb_set_bdaddr_marvell; 3058 3059 if (id->driver_info & BTUSB_SWAVE) { 3060 set_bit(HCI_QUIRK_FIXUP_INQUIRY_MODE, &hdev->quirks); 3061 set_bit(HCI_QUIRK_BROKEN_LOCAL_COMMANDS, &hdev->quirks); 3062 } 3063 3064 if (id->driver_info & BTUSB_INTEL_BOOT) { 3065 hdev->manufacturer = 2; 3066 set_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks); 3067 } 3068 3069 if (id->driver_info & BTUSB_ATH3012) { 3070 hdev->set_bdaddr = btusb_set_bdaddr_ath3012; 3071 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks); 3072 set_bit(HCI_QUIRK_STRICT_DUPLICATE_FILTER, &hdev->quirks); 3073 } 3074 3075 if (id->driver_info & BTUSB_QCA_ROME) { 3076 data->setup_on_usb = btusb_setup_qca; 3077 hdev->set_bdaddr = btusb_set_bdaddr_ath3012; 3078 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks); 3079 btusb_check_needs_reset_resume(intf); 3080 } 3081 3082 #ifdef CONFIG_BT_HCIBTUSB_RTL 3083 if (id->driver_info & BTUSB_REALTEK) { 3084 hdev->setup = btrtl_setup_realtek; 3085 3086 /* Realtek devices lose their updated firmware over suspend, 3087 * but the USB hub doesn't notice any status change. 3088 * Explicitly request a device reset on resume. 3089 */ 3090 interface_to_usbdev(intf)->quirks |= USB_QUIRK_RESET_RESUME; 3091 } 3092 #endif 3093 3094 if (id->driver_info & BTUSB_AMP) { 3095 /* AMP controllers do not support SCO packets */ 3096 data->isoc = NULL; 3097 } else { 3098 /* Interface orders are hardcoded in the specification */ 3099 data->isoc = usb_ifnum_to_if(data->udev, ifnum_base + 1); 3100 data->isoc_ifnum = ifnum_base + 1; 3101 } 3102 3103 if (!reset) 3104 set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks); 3105 3106 if (force_scofix || id->driver_info & BTUSB_WRONG_SCO_MTU) { 3107 if (!disable_scofix) 3108 set_bit(HCI_QUIRK_FIXUP_BUFFER_SIZE, &hdev->quirks); 3109 } 3110 3111 if (id->driver_info & BTUSB_BROKEN_ISOC) 3112 data->isoc = NULL; 3113 3114 if (id->driver_info & BTUSB_DIGIANSWER) { 3115 data->cmdreq_type = USB_TYPE_VENDOR; 3116 set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks); 3117 } 3118 3119 if (id->driver_info & BTUSB_CSR) { 3120 struct usb_device *udev = data->udev; 3121 u16 bcdDevice = le16_to_cpu(udev->descriptor.bcdDevice); 3122 3123 /* Old firmware would otherwise execute USB reset */ 3124 if (bcdDevice < 0x117) 3125 set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks); 3126 3127 /* Fake CSR devices with broken commands */ 3128 if (bcdDevice <= 0x100 || bcdDevice == 0x134) 3129 hdev->setup = btusb_setup_csr; 3130 3131 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks); 3132 } 3133 3134 if (id->driver_info & BTUSB_SNIFFER) { 3135 struct usb_device *udev = data->udev; 3136 3137 /* New sniffer firmware has crippled HCI interface */ 3138 if (le16_to_cpu(udev->descriptor.bcdDevice) > 0x997) 3139 set_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks); 3140 } 3141 3142 if (id->driver_info & BTUSB_INTEL_BOOT) { 3143 /* A bug in the bootloader causes that interrupt interface is 3144 * only enabled after receiving SetInterface(0, AltSetting=0). 3145 */ 3146 err = usb_set_interface(data->udev, 0, 0); 3147 if (err < 0) { 3148 BT_ERR("failed to set interface 0, alt 0 %d", err); 3149 goto out_free_dev; 3150 } 3151 } 3152 3153 if (data->isoc) { 3154 err = usb_driver_claim_interface(&btusb_driver, 3155 data->isoc, data); 3156 if (err < 0) 3157 goto out_free_dev; 3158 } 3159 3160 #ifdef CONFIG_BT_HCIBTUSB_BCM 3161 if (data->diag) { 3162 if (!usb_driver_claim_interface(&btusb_driver, 3163 data->diag, data)) 3164 __set_diag_interface(hdev); 3165 else 3166 data->diag = NULL; 3167 } 3168 #endif 3169 3170 if (enable_autosuspend) 3171 usb_enable_autosuspend(data->udev); 3172 3173 err = hci_register_dev(hdev); 3174 if (err < 0) 3175 goto out_free_dev; 3176 3177 usb_set_intfdata(intf, data); 3178 3179 return 0; 3180 3181 out_free_dev: 3182 hci_free_dev(hdev); 3183 return err; 3184 } 3185 3186 static void btusb_disconnect(struct usb_interface *intf) 3187 { 3188 struct btusb_data *data = usb_get_intfdata(intf); 3189 struct hci_dev *hdev; 3190 3191 BT_DBG("intf %p", intf); 3192 3193 if (!data) 3194 return; 3195 3196 hdev = data->hdev; 3197 usb_set_intfdata(data->intf, NULL); 3198 3199 if (data->isoc) 3200 usb_set_intfdata(data->isoc, NULL); 3201 3202 if (data->diag) 3203 usb_set_intfdata(data->diag, NULL); 3204 3205 hci_unregister_dev(hdev); 3206 3207 if (intf == data->intf) { 3208 if (data->isoc) 3209 usb_driver_release_interface(&btusb_driver, data->isoc); 3210 if (data->diag) 3211 usb_driver_release_interface(&btusb_driver, data->diag); 3212 } else if (intf == data->isoc) { 3213 if (data->diag) 3214 usb_driver_release_interface(&btusb_driver, data->diag); 3215 usb_driver_release_interface(&btusb_driver, data->intf); 3216 } else if (intf == data->diag) { 3217 usb_driver_release_interface(&btusb_driver, data->intf); 3218 if (data->isoc) 3219 usb_driver_release_interface(&btusb_driver, data->isoc); 3220 } 3221 3222 if (data->oob_wake_irq) 3223 device_init_wakeup(&data->udev->dev, false); 3224 3225 hci_free_dev(hdev); 3226 } 3227 3228 #ifdef CONFIG_PM 3229 static int btusb_suspend(struct usb_interface *intf, pm_message_t message) 3230 { 3231 struct btusb_data *data = usb_get_intfdata(intf); 3232 3233 BT_DBG("intf %p", intf); 3234 3235 if (data->suspend_count++) 3236 return 0; 3237 3238 spin_lock_irq(&data->txlock); 3239 if (!(PMSG_IS_AUTO(message) && data->tx_in_flight)) { 3240 set_bit(BTUSB_SUSPENDING, &data->flags); 3241 spin_unlock_irq(&data->txlock); 3242 } else { 3243 spin_unlock_irq(&data->txlock); 3244 data->suspend_count--; 3245 return -EBUSY; 3246 } 3247 3248 cancel_work_sync(&data->work); 3249 3250 btusb_stop_traffic(data); 3251 usb_kill_anchored_urbs(&data->tx_anchor); 3252 3253 if (data->oob_wake_irq && device_may_wakeup(&data->udev->dev)) { 3254 set_bit(BTUSB_OOB_WAKE_ENABLED, &data->flags); 3255 enable_irq_wake(data->oob_wake_irq); 3256 enable_irq(data->oob_wake_irq); 3257 } 3258 3259 return 0; 3260 } 3261 3262 static void play_deferred(struct btusb_data *data) 3263 { 3264 struct urb *urb; 3265 int err; 3266 3267 while ((urb = usb_get_from_anchor(&data->deferred))) { 3268 usb_anchor_urb(urb, &data->tx_anchor); 3269 3270 err = usb_submit_urb(urb, GFP_ATOMIC); 3271 if (err < 0) { 3272 if (err != -EPERM && err != -ENODEV) 3273 BT_ERR("%s urb %p submission failed (%d)", 3274 data->hdev->name, urb, -err); 3275 kfree(urb->setup_packet); 3276 usb_unanchor_urb(urb); 3277 usb_free_urb(urb); 3278 break; 3279 } 3280 3281 data->tx_in_flight++; 3282 usb_free_urb(urb); 3283 } 3284 3285 /* Cleanup the rest deferred urbs. */ 3286 while ((urb = usb_get_from_anchor(&data->deferred))) { 3287 kfree(urb->setup_packet); 3288 usb_free_urb(urb); 3289 } 3290 } 3291 3292 static int btusb_resume(struct usb_interface *intf) 3293 { 3294 struct btusb_data *data = usb_get_intfdata(intf); 3295 struct hci_dev *hdev = data->hdev; 3296 int err = 0; 3297 3298 BT_DBG("intf %p", intf); 3299 3300 if (--data->suspend_count) 3301 return 0; 3302 3303 /* Disable only if not already disabled (keep it balanced) */ 3304 if (test_and_clear_bit(BTUSB_OOB_WAKE_ENABLED, &data->flags)) { 3305 disable_irq(data->oob_wake_irq); 3306 disable_irq_wake(data->oob_wake_irq); 3307 } 3308 3309 if (!test_bit(HCI_RUNNING, &hdev->flags)) 3310 goto done; 3311 3312 if (test_bit(BTUSB_INTR_RUNNING, &data->flags)) { 3313 err = btusb_submit_intr_urb(hdev, GFP_NOIO); 3314 if (err < 0) { 3315 clear_bit(BTUSB_INTR_RUNNING, &data->flags); 3316 goto failed; 3317 } 3318 } 3319 3320 if (test_bit(BTUSB_BULK_RUNNING, &data->flags)) { 3321 err = btusb_submit_bulk_urb(hdev, GFP_NOIO); 3322 if (err < 0) { 3323 clear_bit(BTUSB_BULK_RUNNING, &data->flags); 3324 goto failed; 3325 } 3326 3327 btusb_submit_bulk_urb(hdev, GFP_NOIO); 3328 } 3329 3330 if (test_bit(BTUSB_ISOC_RUNNING, &data->flags)) { 3331 if (btusb_submit_isoc_urb(hdev, GFP_NOIO) < 0) 3332 clear_bit(BTUSB_ISOC_RUNNING, &data->flags); 3333 else 3334 btusb_submit_isoc_urb(hdev, GFP_NOIO); 3335 } 3336 3337 spin_lock_irq(&data->txlock); 3338 play_deferred(data); 3339 clear_bit(BTUSB_SUSPENDING, &data->flags); 3340 spin_unlock_irq(&data->txlock); 3341 schedule_work(&data->work); 3342 3343 return 0; 3344 3345 failed: 3346 usb_scuttle_anchored_urbs(&data->deferred); 3347 done: 3348 spin_lock_irq(&data->txlock); 3349 clear_bit(BTUSB_SUSPENDING, &data->flags); 3350 spin_unlock_irq(&data->txlock); 3351 3352 return err; 3353 } 3354 #endif 3355 3356 static struct usb_driver btusb_driver = { 3357 .name = "btusb", 3358 .probe = btusb_probe, 3359 .disconnect = btusb_disconnect, 3360 #ifdef CONFIG_PM 3361 .suspend = btusb_suspend, 3362 .resume = btusb_resume, 3363 #endif 3364 .id_table = btusb_table, 3365 .supports_autosuspend = 1, 3366 .disable_hub_initiated_lpm = 1, 3367 }; 3368 3369 module_usb_driver(btusb_driver); 3370 3371 module_param(disable_scofix, bool, 0644); 3372 MODULE_PARM_DESC(disable_scofix, "Disable fixup of wrong SCO buffer size"); 3373 3374 module_param(force_scofix, bool, 0644); 3375 MODULE_PARM_DESC(force_scofix, "Force fixup of wrong SCO buffers size"); 3376 3377 module_param(enable_autosuspend, bool, 0644); 3378 MODULE_PARM_DESC(enable_autosuspend, "Enable USB autosuspend by default"); 3379 3380 module_param(reset, bool, 0644); 3381 MODULE_PARM_DESC(reset, "Send HCI reset command on initialization"); 3382 3383 MODULE_AUTHOR("Marcel Holtmann <marcel@holtmann.org>"); 3384 MODULE_DESCRIPTION("Generic Bluetooth USB driver ver " VERSION); 3385 MODULE_VERSION(VERSION); 3386 MODULE_LICENSE("GPL"); 3387