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