1 /* 2 * 3 * Generic Bluetooth USB driver 4 * 5 * Copyright (C) 2005-2008 Marcel Holtmann <marcel@holtmann.org> 6 * 7 * 8 * This program is free software; you can redistribute it and/or modify 9 * it under the terms of the GNU General Public License as published by 10 * the Free Software Foundation; either version 2 of the License, or 11 * (at your option) any later version. 12 * 13 * This program is distributed in the hope that it will be useful, 14 * but WITHOUT ANY WARRANTY; without even the implied warranty of 15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 16 * GNU General Public License for more details. 17 * 18 * You should have received a copy of the GNU General Public License 19 * along with this program; if not, write to the Free Software 20 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA 21 * 22 */ 23 24 #include <linux/dmi.h> 25 #include <linux/module.h> 26 #include <linux/usb.h> 27 #include <linux/usb/quirks.h> 28 #include <linux/firmware.h> 29 #include <linux/of_device.h> 30 #include <linux/of_irq.h> 31 #include <linux/suspend.h> 32 #include <asm/unaligned.h> 33 34 #include <net/bluetooth/bluetooth.h> 35 #include <net/bluetooth/hci_core.h> 36 37 #include "btintel.h" 38 #include "btbcm.h" 39 #include "btrtl.h" 40 41 #define VERSION "0.8" 42 43 static bool disable_scofix; 44 static bool force_scofix; 45 static bool enable_autosuspend = IS_ENABLED(CONFIG_BT_HCIBTUSB_AUTOSUSPEND); 46 47 static bool reset = true; 48 49 static struct usb_driver btusb_driver; 50 51 #define BTUSB_IGNORE 0x01 52 #define BTUSB_DIGIANSWER 0x02 53 #define BTUSB_CSR 0x04 54 #define BTUSB_SNIFFER 0x08 55 #define BTUSB_BCM92035 0x10 56 #define BTUSB_BROKEN_ISOC 0x20 57 #define BTUSB_WRONG_SCO_MTU 0x40 58 #define BTUSB_ATH3012 0x80 59 #define BTUSB_INTEL 0x100 60 #define BTUSB_INTEL_BOOT 0x200 61 #define BTUSB_BCM_PATCHRAM 0x400 62 #define BTUSB_MARVELL 0x800 63 #define BTUSB_SWAVE 0x1000 64 #define BTUSB_INTEL_NEW 0x2000 65 #define BTUSB_AMP 0x4000 66 #define BTUSB_QCA_ROME 0x8000 67 #define BTUSB_BCM_APPLE 0x10000 68 #define BTUSB_REALTEK 0x20000 69 #define BTUSB_BCM2045 0x40000 70 #define BTUSB_IFNUM_2 0x80000 71 #define BTUSB_CW6622 0x100000 72 73 static const struct usb_device_id btusb_table[] = { 74 /* Generic Bluetooth USB device */ 75 { USB_DEVICE_INFO(0xe0, 0x01, 0x01) }, 76 77 /* Generic Bluetooth AMP device */ 78 { USB_DEVICE_INFO(0xe0, 0x01, 0x04), .driver_info = BTUSB_AMP }, 79 80 /* Generic Bluetooth USB interface */ 81 { USB_INTERFACE_INFO(0xe0, 0x01, 0x01) }, 82 83 /* Apple-specific (Broadcom) devices */ 84 { USB_VENDOR_AND_INTERFACE_INFO(0x05ac, 0xff, 0x01, 0x01), 85 .driver_info = BTUSB_BCM_APPLE | BTUSB_IFNUM_2 }, 86 87 /* MediaTek MT76x0E */ 88 { USB_DEVICE(0x0e8d, 0x763f) }, 89 90 /* Broadcom SoftSailing reporting vendor specific */ 91 { USB_DEVICE(0x0a5c, 0x21e1) }, 92 93 /* Apple MacBookPro 7,1 */ 94 { USB_DEVICE(0x05ac, 0x8213) }, 95 96 /* Apple iMac11,1 */ 97 { USB_DEVICE(0x05ac, 0x8215) }, 98 99 /* Apple MacBookPro6,2 */ 100 { USB_DEVICE(0x05ac, 0x8218) }, 101 102 /* Apple MacBookAir3,1, MacBookAir3,2 */ 103 { USB_DEVICE(0x05ac, 0x821b) }, 104 105 /* Apple MacBookAir4,1 */ 106 { USB_DEVICE(0x05ac, 0x821f) }, 107 108 /* Apple MacBookPro8,2 */ 109 { USB_DEVICE(0x05ac, 0x821a) }, 110 111 /* Apple MacMini5,1 */ 112 { USB_DEVICE(0x05ac, 0x8281) }, 113 114 /* AVM BlueFRITZ! USB v2.0 */ 115 { USB_DEVICE(0x057c, 0x3800), .driver_info = BTUSB_SWAVE }, 116 117 /* Bluetooth Ultraport Module from IBM */ 118 { USB_DEVICE(0x04bf, 0x030a) }, 119 120 /* ALPS Modules with non-standard id */ 121 { USB_DEVICE(0x044e, 0x3001) }, 122 { USB_DEVICE(0x044e, 0x3002) }, 123 124 /* Ericsson with non-standard id */ 125 { USB_DEVICE(0x0bdb, 0x1002) }, 126 127 /* Canyon CN-BTU1 with HID interfaces */ 128 { USB_DEVICE(0x0c10, 0x0000) }, 129 130 /* Broadcom BCM20702A0 */ 131 { USB_DEVICE(0x413c, 0x8197) }, 132 133 /* Broadcom BCM20702B0 (Dynex/Insignia) */ 134 { USB_DEVICE(0x19ff, 0x0239), .driver_info = BTUSB_BCM_PATCHRAM }, 135 136 /* Broadcom BCM43142A0 (Foxconn/Lenovo) */ 137 { USB_VENDOR_AND_INTERFACE_INFO(0x105b, 0xff, 0x01, 0x01), 138 .driver_info = BTUSB_BCM_PATCHRAM }, 139 140 /* Broadcom BCM920703 (HTC Vive) */ 141 { USB_VENDOR_AND_INTERFACE_INFO(0x0bb4, 0xff, 0x01, 0x01), 142 .driver_info = BTUSB_BCM_PATCHRAM }, 143 144 /* Foxconn - Hon Hai */ 145 { USB_VENDOR_AND_INTERFACE_INFO(0x0489, 0xff, 0x01, 0x01), 146 .driver_info = BTUSB_BCM_PATCHRAM }, 147 148 /* Lite-On Technology - Broadcom based */ 149 { USB_VENDOR_AND_INTERFACE_INFO(0x04ca, 0xff, 0x01, 0x01), 150 .driver_info = BTUSB_BCM_PATCHRAM }, 151 152 /* Broadcom devices with vendor specific id */ 153 { USB_VENDOR_AND_INTERFACE_INFO(0x0a5c, 0xff, 0x01, 0x01), 154 .driver_info = BTUSB_BCM_PATCHRAM }, 155 156 /* ASUSTek Computer - Broadcom based */ 157 { USB_VENDOR_AND_INTERFACE_INFO(0x0b05, 0xff, 0x01, 0x01), 158 .driver_info = BTUSB_BCM_PATCHRAM }, 159 160 /* Belkin F8065bf - Broadcom based */ 161 { USB_VENDOR_AND_INTERFACE_INFO(0x050d, 0xff, 0x01, 0x01), 162 .driver_info = BTUSB_BCM_PATCHRAM }, 163 164 /* IMC Networks - Broadcom based */ 165 { USB_VENDOR_AND_INTERFACE_INFO(0x13d3, 0xff, 0x01, 0x01), 166 .driver_info = BTUSB_BCM_PATCHRAM }, 167 168 /* Dell Computer - Broadcom based */ 169 { USB_VENDOR_AND_INTERFACE_INFO(0x413c, 0xff, 0x01, 0x01), 170 .driver_info = BTUSB_BCM_PATCHRAM }, 171 172 /* Toshiba Corp - Broadcom based */ 173 { USB_VENDOR_AND_INTERFACE_INFO(0x0930, 0xff, 0x01, 0x01), 174 .driver_info = BTUSB_BCM_PATCHRAM }, 175 176 /* Intel Bluetooth USB Bootloader (RAM module) */ 177 { USB_DEVICE(0x8087, 0x0a5a), 178 .driver_info = BTUSB_INTEL_BOOT | BTUSB_BROKEN_ISOC }, 179 180 { } /* Terminating entry */ 181 }; 182 183 MODULE_DEVICE_TABLE(usb, btusb_table); 184 185 static const struct usb_device_id blacklist_table[] = { 186 /* CSR BlueCore devices */ 187 { USB_DEVICE(0x0a12, 0x0001), .driver_info = BTUSB_CSR }, 188 189 /* Broadcom BCM2033 without firmware */ 190 { USB_DEVICE(0x0a5c, 0x2033), .driver_info = BTUSB_IGNORE }, 191 192 /* Broadcom BCM2045 devices */ 193 { USB_DEVICE(0x0a5c, 0x2045), .driver_info = BTUSB_BCM2045 }, 194 195 /* Atheros 3011 with sflash firmware */ 196 { USB_DEVICE(0x0489, 0xe027), .driver_info = BTUSB_IGNORE }, 197 { USB_DEVICE(0x0489, 0xe03d), .driver_info = BTUSB_IGNORE }, 198 { USB_DEVICE(0x04f2, 0xaff1), .driver_info = BTUSB_IGNORE }, 199 { USB_DEVICE(0x0930, 0x0215), .driver_info = BTUSB_IGNORE }, 200 { USB_DEVICE(0x0cf3, 0x3002), .driver_info = BTUSB_IGNORE }, 201 { USB_DEVICE(0x0cf3, 0xe019), .driver_info = BTUSB_IGNORE }, 202 { USB_DEVICE(0x13d3, 0x3304), .driver_info = BTUSB_IGNORE }, 203 204 /* Atheros AR9285 Malbec with sflash firmware */ 205 { USB_DEVICE(0x03f0, 0x311d), .driver_info = BTUSB_IGNORE }, 206 207 /* Atheros 3012 with sflash firmware */ 208 { USB_DEVICE(0x0489, 0xe04d), .driver_info = BTUSB_ATH3012 }, 209 { USB_DEVICE(0x0489, 0xe04e), .driver_info = BTUSB_ATH3012 }, 210 { USB_DEVICE(0x0489, 0xe056), .driver_info = BTUSB_ATH3012 }, 211 { USB_DEVICE(0x0489, 0xe057), .driver_info = BTUSB_ATH3012 }, 212 { USB_DEVICE(0x0489, 0xe05f), .driver_info = BTUSB_ATH3012 }, 213 { USB_DEVICE(0x0489, 0xe076), .driver_info = BTUSB_ATH3012 }, 214 { USB_DEVICE(0x0489, 0xe078), .driver_info = BTUSB_ATH3012 }, 215 { USB_DEVICE(0x0489, 0xe095), .driver_info = BTUSB_ATH3012 }, 216 { USB_DEVICE(0x04c5, 0x1330), .driver_info = BTUSB_ATH3012 }, 217 { USB_DEVICE(0x04ca, 0x3004), .driver_info = BTUSB_ATH3012 }, 218 { USB_DEVICE(0x04ca, 0x3005), .driver_info = BTUSB_ATH3012 }, 219 { USB_DEVICE(0x04ca, 0x3006), .driver_info = BTUSB_ATH3012 }, 220 { USB_DEVICE(0x04ca, 0x3007), .driver_info = BTUSB_ATH3012 }, 221 { USB_DEVICE(0x04ca, 0x3008), .driver_info = BTUSB_ATH3012 }, 222 { USB_DEVICE(0x04ca, 0x300b), .driver_info = BTUSB_ATH3012 }, 223 { USB_DEVICE(0x04ca, 0x300d), .driver_info = BTUSB_ATH3012 }, 224 { USB_DEVICE(0x04ca, 0x300f), .driver_info = BTUSB_ATH3012 }, 225 { USB_DEVICE(0x04ca, 0x3010), .driver_info = BTUSB_ATH3012 }, 226 { USB_DEVICE(0x04ca, 0x3014), .driver_info = BTUSB_ATH3012 }, 227 { USB_DEVICE(0x04ca, 0x3018), .driver_info = BTUSB_ATH3012 }, 228 { USB_DEVICE(0x0930, 0x0219), .driver_info = BTUSB_ATH3012 }, 229 { USB_DEVICE(0x0930, 0x021c), .driver_info = BTUSB_ATH3012 }, 230 { USB_DEVICE(0x0930, 0x0220), .driver_info = BTUSB_ATH3012 }, 231 { USB_DEVICE(0x0930, 0x0227), .driver_info = BTUSB_ATH3012 }, 232 { USB_DEVICE(0x0b05, 0x17d0), .driver_info = BTUSB_ATH3012 }, 233 { USB_DEVICE(0x0cf3, 0x0036), .driver_info = BTUSB_ATH3012 }, 234 { USB_DEVICE(0x0cf3, 0x3004), .driver_info = BTUSB_ATH3012 }, 235 { USB_DEVICE(0x0cf3, 0x3008), .driver_info = BTUSB_ATH3012 }, 236 { USB_DEVICE(0x0cf3, 0x311d), .driver_info = BTUSB_ATH3012 }, 237 { USB_DEVICE(0x0cf3, 0x311e), .driver_info = BTUSB_ATH3012 }, 238 { USB_DEVICE(0x0cf3, 0x311f), .driver_info = BTUSB_ATH3012 }, 239 { USB_DEVICE(0x0cf3, 0x3121), .driver_info = BTUSB_ATH3012 }, 240 { USB_DEVICE(0x0cf3, 0x817a), .driver_info = BTUSB_ATH3012 }, 241 { USB_DEVICE(0x0cf3, 0x817b), .driver_info = BTUSB_ATH3012 }, 242 { USB_DEVICE(0x0cf3, 0xe003), .driver_info = BTUSB_ATH3012 }, 243 { USB_DEVICE(0x0cf3, 0xe004), .driver_info = BTUSB_ATH3012 }, 244 { USB_DEVICE(0x0cf3, 0xe005), .driver_info = BTUSB_ATH3012 }, 245 { USB_DEVICE(0x0cf3, 0xe006), .driver_info = BTUSB_ATH3012 }, 246 { USB_DEVICE(0x13d3, 0x3362), .driver_info = BTUSB_ATH3012 }, 247 { USB_DEVICE(0x13d3, 0x3375), .driver_info = BTUSB_ATH3012 }, 248 { USB_DEVICE(0x13d3, 0x3393), .driver_info = BTUSB_ATH3012 }, 249 { USB_DEVICE(0x13d3, 0x3395), .driver_info = BTUSB_ATH3012 }, 250 { USB_DEVICE(0x13d3, 0x3402), .driver_info = BTUSB_ATH3012 }, 251 { USB_DEVICE(0x13d3, 0x3408), .driver_info = BTUSB_ATH3012 }, 252 { USB_DEVICE(0x13d3, 0x3423), .driver_info = BTUSB_ATH3012 }, 253 { USB_DEVICE(0x13d3, 0x3432), .driver_info = BTUSB_ATH3012 }, 254 { USB_DEVICE(0x13d3, 0x3472), .driver_info = BTUSB_ATH3012 }, 255 { USB_DEVICE(0x13d3, 0x3474), .driver_info = BTUSB_ATH3012 }, 256 { USB_DEVICE(0x13d3, 0x3487), .driver_info = BTUSB_ATH3012 }, 257 { USB_DEVICE(0x13d3, 0x3490), .driver_info = BTUSB_ATH3012 }, 258 259 /* Atheros AR5BBU12 with sflash firmware */ 260 { USB_DEVICE(0x0489, 0xe02c), .driver_info = BTUSB_IGNORE }, 261 262 /* Atheros AR5BBU12 with sflash firmware */ 263 { USB_DEVICE(0x0489, 0xe036), .driver_info = BTUSB_ATH3012 }, 264 { USB_DEVICE(0x0489, 0xe03c), .driver_info = BTUSB_ATH3012 }, 265 266 /* QCA ROME chipset */ 267 { USB_DEVICE(0x0cf3, 0xe007), .driver_info = BTUSB_QCA_ROME }, 268 { USB_DEVICE(0x0cf3, 0xe009), .driver_info = BTUSB_QCA_ROME }, 269 { USB_DEVICE(0x0cf3, 0xe010), .driver_info = BTUSB_QCA_ROME }, 270 { USB_DEVICE(0x0cf3, 0xe300), .driver_info = BTUSB_QCA_ROME }, 271 { USB_DEVICE(0x0cf3, 0xe301), .driver_info = BTUSB_QCA_ROME }, 272 { USB_DEVICE(0x0cf3, 0xe360), .driver_info = BTUSB_QCA_ROME }, 273 { USB_DEVICE(0x0489, 0xe092), .driver_info = BTUSB_QCA_ROME }, 274 { USB_DEVICE(0x0489, 0xe09f), .driver_info = BTUSB_QCA_ROME }, 275 { USB_DEVICE(0x0489, 0xe0a2), .driver_info = BTUSB_QCA_ROME }, 276 { USB_DEVICE(0x04ca, 0x3011), .driver_info = BTUSB_QCA_ROME }, 277 { USB_DEVICE(0x04ca, 0x3015), .driver_info = BTUSB_QCA_ROME }, 278 { USB_DEVICE(0x04ca, 0x3016), .driver_info = BTUSB_QCA_ROME }, 279 280 /* 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 /* Dell XPS 9360 (QCA ROME device 0cf3:e300) */ 404 .matches = { 405 DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."), 406 DMI_MATCH(DMI_PRODUCT_NAME, "XPS 13 9360"), 407 }, 408 }, 409 {} 410 }; 411 412 #define BTUSB_MAX_ISOC_FRAMES 10 413 414 #define BTUSB_INTR_RUNNING 0 415 #define BTUSB_BULK_RUNNING 1 416 #define BTUSB_ISOC_RUNNING 2 417 #define BTUSB_SUSPENDING 3 418 #define BTUSB_DID_ISO_RESUME 4 419 #define BTUSB_BOOTLOADER 5 420 #define BTUSB_DOWNLOADING 6 421 #define BTUSB_FIRMWARE_LOADED 7 422 #define BTUSB_FIRMWARE_FAILED 8 423 #define BTUSB_BOOTING 9 424 #define BTUSB_DIAG_RUNNING 10 425 #define BTUSB_OOB_WAKE_ENABLED 11 426 427 struct btusb_data { 428 struct hci_dev *hdev; 429 struct usb_device *udev; 430 struct usb_interface *intf; 431 struct usb_interface *isoc; 432 struct usb_interface *diag; 433 unsigned isoc_ifnum; 434 435 unsigned long flags; 436 437 struct work_struct work; 438 struct work_struct waker; 439 440 struct usb_anchor deferred; 441 struct usb_anchor tx_anchor; 442 int tx_in_flight; 443 spinlock_t txlock; 444 445 struct usb_anchor intr_anchor; 446 struct usb_anchor bulk_anchor; 447 struct usb_anchor isoc_anchor; 448 struct usb_anchor diag_anchor; 449 spinlock_t rxlock; 450 451 struct sk_buff *evt_skb; 452 struct sk_buff *acl_skb; 453 struct sk_buff *sco_skb; 454 455 struct usb_endpoint_descriptor *intr_ep; 456 struct usb_endpoint_descriptor *bulk_tx_ep; 457 struct usb_endpoint_descriptor *bulk_rx_ep; 458 struct usb_endpoint_descriptor *isoc_tx_ep; 459 struct usb_endpoint_descriptor *isoc_rx_ep; 460 struct usb_endpoint_descriptor *diag_tx_ep; 461 struct usb_endpoint_descriptor *diag_rx_ep; 462 463 __u8 cmdreq_type; 464 __u8 cmdreq; 465 466 unsigned int sco_num; 467 int isoc_altsetting; 468 int suspend_count; 469 470 int (*recv_event)(struct hci_dev *hdev, struct sk_buff *skb); 471 int (*recv_bulk)(struct btusb_data *data, void *buffer, int count); 472 473 int (*setup_on_usb)(struct hci_dev *hdev); 474 475 int oob_wake_irq; /* irq for out-of-band wake-on-bt */ 476 }; 477 478 static inline void btusb_free_frags(struct btusb_data *data) 479 { 480 unsigned long flags; 481 482 spin_lock_irqsave(&data->rxlock, flags); 483 484 kfree_skb(data->evt_skb); 485 data->evt_skb = NULL; 486 487 kfree_skb(data->acl_skb); 488 data->acl_skb = NULL; 489 490 kfree_skb(data->sco_skb); 491 data->sco_skb = NULL; 492 493 spin_unlock_irqrestore(&data->rxlock, flags); 494 } 495 496 static int btusb_recv_intr(struct btusb_data *data, void *buffer, int count) 497 { 498 struct sk_buff *skb; 499 int err = 0; 500 501 spin_lock(&data->rxlock); 502 skb = data->evt_skb; 503 504 while (count) { 505 int len; 506 507 if (!skb) { 508 skb = bt_skb_alloc(HCI_MAX_EVENT_SIZE, GFP_ATOMIC); 509 if (!skb) { 510 err = -ENOMEM; 511 break; 512 } 513 514 hci_skb_pkt_type(skb) = HCI_EVENT_PKT; 515 hci_skb_expect(skb) = HCI_EVENT_HDR_SIZE; 516 } 517 518 len = min_t(uint, hci_skb_expect(skb), count); 519 skb_put_data(skb, buffer, len); 520 521 count -= len; 522 buffer += len; 523 hci_skb_expect(skb) -= len; 524 525 if (skb->len == HCI_EVENT_HDR_SIZE) { 526 /* Complete event header */ 527 hci_skb_expect(skb) = hci_event_hdr(skb)->plen; 528 529 if (skb_tailroom(skb) < hci_skb_expect(skb)) { 530 kfree_skb(skb); 531 skb = NULL; 532 533 err = -EILSEQ; 534 break; 535 } 536 } 537 538 if (!hci_skb_expect(skb)) { 539 /* Complete frame */ 540 data->recv_event(data->hdev, skb); 541 skb = NULL; 542 } 543 } 544 545 data->evt_skb = skb; 546 spin_unlock(&data->rxlock); 547 548 return err; 549 } 550 551 static int btusb_recv_bulk(struct btusb_data *data, void *buffer, int count) 552 { 553 struct sk_buff *skb; 554 int err = 0; 555 556 spin_lock(&data->rxlock); 557 skb = data->acl_skb; 558 559 while (count) { 560 int len; 561 562 if (!skb) { 563 skb = bt_skb_alloc(HCI_MAX_FRAME_SIZE, GFP_ATOMIC); 564 if (!skb) { 565 err = -ENOMEM; 566 break; 567 } 568 569 hci_skb_pkt_type(skb) = HCI_ACLDATA_PKT; 570 hci_skb_expect(skb) = HCI_ACL_HDR_SIZE; 571 } 572 573 len = min_t(uint, hci_skb_expect(skb), count); 574 skb_put_data(skb, buffer, len); 575 576 count -= len; 577 buffer += len; 578 hci_skb_expect(skb) -= len; 579 580 if (skb->len == HCI_ACL_HDR_SIZE) { 581 __le16 dlen = hci_acl_hdr(skb)->dlen; 582 583 /* Complete ACL header */ 584 hci_skb_expect(skb) = __le16_to_cpu(dlen); 585 586 if (skb_tailroom(skb) < hci_skb_expect(skb)) { 587 kfree_skb(skb); 588 skb = NULL; 589 590 err = -EILSEQ; 591 break; 592 } 593 } 594 595 if (!hci_skb_expect(skb)) { 596 /* Complete frame */ 597 hci_recv_frame(data->hdev, skb); 598 skb = NULL; 599 } 600 } 601 602 data->acl_skb = skb; 603 spin_unlock(&data->rxlock); 604 605 return err; 606 } 607 608 static int btusb_recv_isoc(struct btusb_data *data, void *buffer, int count) 609 { 610 struct sk_buff *skb; 611 int err = 0; 612 613 spin_lock(&data->rxlock); 614 skb = data->sco_skb; 615 616 while (count) { 617 int len; 618 619 if (!skb) { 620 skb = bt_skb_alloc(HCI_MAX_SCO_SIZE, GFP_ATOMIC); 621 if (!skb) { 622 err = -ENOMEM; 623 break; 624 } 625 626 hci_skb_pkt_type(skb) = HCI_SCODATA_PKT; 627 hci_skb_expect(skb) = HCI_SCO_HDR_SIZE; 628 } 629 630 len = min_t(uint, hci_skb_expect(skb), count); 631 skb_put_data(skb, buffer, len); 632 633 count -= len; 634 buffer += len; 635 hci_skb_expect(skb) -= len; 636 637 if (skb->len == HCI_SCO_HDR_SIZE) { 638 /* Complete SCO header */ 639 hci_skb_expect(skb) = hci_sco_hdr(skb)->dlen; 640 641 if (skb_tailroom(skb) < hci_skb_expect(skb)) { 642 kfree_skb(skb); 643 skb = NULL; 644 645 err = -EILSEQ; 646 break; 647 } 648 } 649 650 if (!hci_skb_expect(skb)) { 651 /* Complete frame */ 652 hci_recv_frame(data->hdev, skb); 653 skb = NULL; 654 } 655 } 656 657 data->sco_skb = skb; 658 spin_unlock(&data->rxlock); 659 660 return err; 661 } 662 663 static void btusb_intr_complete(struct urb *urb) 664 { 665 struct hci_dev *hdev = urb->context; 666 struct btusb_data *data = hci_get_drvdata(hdev); 667 int err; 668 669 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status, 670 urb->actual_length); 671 672 if (!test_bit(HCI_RUNNING, &hdev->flags)) 673 return; 674 675 if (urb->status == 0) { 676 hdev->stat.byte_rx += urb->actual_length; 677 678 if (btusb_recv_intr(data, urb->transfer_buffer, 679 urb->actual_length) < 0) { 680 bt_dev_err(hdev, "corrupted event packet"); 681 hdev->stat.err_rx++; 682 } 683 } else if (urb->status == -ENOENT) { 684 /* Avoid suspend failed when usb_kill_urb */ 685 return; 686 } 687 688 if (!test_bit(BTUSB_INTR_RUNNING, &data->flags)) 689 return; 690 691 usb_mark_last_busy(data->udev); 692 usb_anchor_urb(urb, &data->intr_anchor); 693 694 err = usb_submit_urb(urb, GFP_ATOMIC); 695 if (err < 0) { 696 /* -EPERM: urb is being killed; 697 * -ENODEV: device got disconnected 698 */ 699 if (err != -EPERM && err != -ENODEV) 700 bt_dev_err(hdev, "urb %p failed to resubmit (%d)", 701 urb, -err); 702 usb_unanchor_urb(urb); 703 } 704 } 705 706 static int btusb_submit_intr_urb(struct hci_dev *hdev, gfp_t mem_flags) 707 { 708 struct btusb_data *data = hci_get_drvdata(hdev); 709 struct urb *urb; 710 unsigned char *buf; 711 unsigned int pipe; 712 int err, size; 713 714 BT_DBG("%s", hdev->name); 715 716 if (!data->intr_ep) 717 return -ENODEV; 718 719 urb = usb_alloc_urb(0, mem_flags); 720 if (!urb) 721 return -ENOMEM; 722 723 size = le16_to_cpu(data->intr_ep->wMaxPacketSize); 724 725 buf = kmalloc(size, mem_flags); 726 if (!buf) { 727 usb_free_urb(urb); 728 return -ENOMEM; 729 } 730 731 pipe = usb_rcvintpipe(data->udev, data->intr_ep->bEndpointAddress); 732 733 usb_fill_int_urb(urb, data->udev, pipe, buf, size, 734 btusb_intr_complete, hdev, data->intr_ep->bInterval); 735 736 urb->transfer_flags |= URB_FREE_BUFFER; 737 738 usb_anchor_urb(urb, &data->intr_anchor); 739 740 err = usb_submit_urb(urb, mem_flags); 741 if (err < 0) { 742 if (err != -EPERM && err != -ENODEV) 743 bt_dev_err(hdev, "urb %p submission failed (%d)", 744 urb, -err); 745 usb_unanchor_urb(urb); 746 } 747 748 usb_free_urb(urb); 749 750 return err; 751 } 752 753 static void btusb_bulk_complete(struct urb *urb) 754 { 755 struct hci_dev *hdev = urb->context; 756 struct btusb_data *data = hci_get_drvdata(hdev); 757 int err; 758 759 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status, 760 urb->actual_length); 761 762 if (!test_bit(HCI_RUNNING, &hdev->flags)) 763 return; 764 765 if (urb->status == 0) { 766 hdev->stat.byte_rx += urb->actual_length; 767 768 if (data->recv_bulk(data, urb->transfer_buffer, 769 urb->actual_length) < 0) { 770 bt_dev_err(hdev, "corrupted ACL packet"); 771 hdev->stat.err_rx++; 772 } 773 } else if (urb->status == -ENOENT) { 774 /* Avoid suspend failed when usb_kill_urb */ 775 return; 776 } 777 778 if (!test_bit(BTUSB_BULK_RUNNING, &data->flags)) 779 return; 780 781 usb_anchor_urb(urb, &data->bulk_anchor); 782 usb_mark_last_busy(data->udev); 783 784 err = usb_submit_urb(urb, GFP_ATOMIC); 785 if (err < 0) { 786 /* -EPERM: urb is being killed; 787 * -ENODEV: device got disconnected 788 */ 789 if (err != -EPERM && err != -ENODEV) 790 bt_dev_err(hdev, "urb %p failed to resubmit (%d)", 791 urb, -err); 792 usb_unanchor_urb(urb); 793 } 794 } 795 796 static int btusb_submit_bulk_urb(struct hci_dev *hdev, gfp_t mem_flags) 797 { 798 struct btusb_data *data = hci_get_drvdata(hdev); 799 struct urb *urb; 800 unsigned char *buf; 801 unsigned int pipe; 802 int err, size = HCI_MAX_FRAME_SIZE; 803 804 BT_DBG("%s", hdev->name); 805 806 if (!data->bulk_rx_ep) 807 return -ENODEV; 808 809 urb = usb_alloc_urb(0, mem_flags); 810 if (!urb) 811 return -ENOMEM; 812 813 buf = kmalloc(size, mem_flags); 814 if (!buf) { 815 usb_free_urb(urb); 816 return -ENOMEM; 817 } 818 819 pipe = usb_rcvbulkpipe(data->udev, data->bulk_rx_ep->bEndpointAddress); 820 821 usb_fill_bulk_urb(urb, data->udev, pipe, buf, size, 822 btusb_bulk_complete, hdev); 823 824 urb->transfer_flags |= URB_FREE_BUFFER; 825 826 usb_mark_last_busy(data->udev); 827 usb_anchor_urb(urb, &data->bulk_anchor); 828 829 err = usb_submit_urb(urb, mem_flags); 830 if (err < 0) { 831 if (err != -EPERM && err != -ENODEV) 832 bt_dev_err(hdev, "urb %p submission failed (%d)", 833 urb, -err); 834 usb_unanchor_urb(urb); 835 } 836 837 usb_free_urb(urb); 838 839 return err; 840 } 841 842 static void btusb_isoc_complete(struct urb *urb) 843 { 844 struct hci_dev *hdev = urb->context; 845 struct btusb_data *data = hci_get_drvdata(hdev); 846 int i, err; 847 848 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status, 849 urb->actual_length); 850 851 if (!test_bit(HCI_RUNNING, &hdev->flags)) 852 return; 853 854 if (urb->status == 0) { 855 for (i = 0; i < urb->number_of_packets; i++) { 856 unsigned int offset = urb->iso_frame_desc[i].offset; 857 unsigned int length = urb->iso_frame_desc[i].actual_length; 858 859 if (urb->iso_frame_desc[i].status) 860 continue; 861 862 hdev->stat.byte_rx += length; 863 864 if (btusb_recv_isoc(data, urb->transfer_buffer + offset, 865 length) < 0) { 866 bt_dev_err(hdev, "corrupted SCO packet"); 867 hdev->stat.err_rx++; 868 } 869 } 870 } else if (urb->status == -ENOENT) { 871 /* Avoid suspend failed when usb_kill_urb */ 872 return; 873 } 874 875 if (!test_bit(BTUSB_ISOC_RUNNING, &data->flags)) 876 return; 877 878 usb_anchor_urb(urb, &data->isoc_anchor); 879 880 err = usb_submit_urb(urb, GFP_ATOMIC); 881 if (err < 0) { 882 /* -EPERM: urb is being killed; 883 * -ENODEV: device got disconnected 884 */ 885 if (err != -EPERM && err != -ENODEV) 886 bt_dev_err(hdev, "urb %p failed to resubmit (%d)", 887 urb, -err); 888 usb_unanchor_urb(urb); 889 } 890 } 891 892 static inline void __fill_isoc_descriptor(struct urb *urb, int len, int mtu) 893 { 894 int i, offset = 0; 895 896 BT_DBG("len %d mtu %d", len, mtu); 897 898 for (i = 0; i < BTUSB_MAX_ISOC_FRAMES && len >= mtu; 899 i++, offset += mtu, len -= mtu) { 900 urb->iso_frame_desc[i].offset = offset; 901 urb->iso_frame_desc[i].length = mtu; 902 } 903 904 if (len && i < BTUSB_MAX_ISOC_FRAMES) { 905 urb->iso_frame_desc[i].offset = offset; 906 urb->iso_frame_desc[i].length = len; 907 i++; 908 } 909 910 urb->number_of_packets = i; 911 } 912 913 static int btusb_submit_isoc_urb(struct hci_dev *hdev, gfp_t mem_flags) 914 { 915 struct btusb_data *data = hci_get_drvdata(hdev); 916 struct urb *urb; 917 unsigned char *buf; 918 unsigned int pipe; 919 int err, size; 920 921 BT_DBG("%s", hdev->name); 922 923 if (!data->isoc_rx_ep) 924 return -ENODEV; 925 926 urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, mem_flags); 927 if (!urb) 928 return -ENOMEM; 929 930 size = le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize) * 931 BTUSB_MAX_ISOC_FRAMES; 932 933 buf = kmalloc(size, mem_flags); 934 if (!buf) { 935 usb_free_urb(urb); 936 return -ENOMEM; 937 } 938 939 pipe = usb_rcvisocpipe(data->udev, data->isoc_rx_ep->bEndpointAddress); 940 941 usb_fill_int_urb(urb, data->udev, pipe, buf, size, btusb_isoc_complete, 942 hdev, data->isoc_rx_ep->bInterval); 943 944 urb->transfer_flags = URB_FREE_BUFFER | URB_ISO_ASAP; 945 946 __fill_isoc_descriptor(urb, size, 947 le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize)); 948 949 usb_anchor_urb(urb, &data->isoc_anchor); 950 951 err = usb_submit_urb(urb, mem_flags); 952 if (err < 0) { 953 if (err != -EPERM && err != -ENODEV) 954 bt_dev_err(hdev, "urb %p submission failed (%d)", 955 urb, -err); 956 usb_unanchor_urb(urb); 957 } 958 959 usb_free_urb(urb); 960 961 return err; 962 } 963 964 static void btusb_diag_complete(struct urb *urb) 965 { 966 struct hci_dev *hdev = urb->context; 967 struct btusb_data *data = hci_get_drvdata(hdev); 968 int err; 969 970 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status, 971 urb->actual_length); 972 973 if (urb->status == 0) { 974 struct sk_buff *skb; 975 976 skb = bt_skb_alloc(urb->actual_length, GFP_ATOMIC); 977 if (skb) { 978 skb_put_data(skb, urb->transfer_buffer, 979 urb->actual_length); 980 hci_recv_diag(hdev, skb); 981 } 982 } else if (urb->status == -ENOENT) { 983 /* Avoid suspend failed when usb_kill_urb */ 984 return; 985 } 986 987 if (!test_bit(BTUSB_DIAG_RUNNING, &data->flags)) 988 return; 989 990 usb_anchor_urb(urb, &data->diag_anchor); 991 usb_mark_last_busy(data->udev); 992 993 err = usb_submit_urb(urb, GFP_ATOMIC); 994 if (err < 0) { 995 /* -EPERM: urb is being killed; 996 * -ENODEV: device got disconnected 997 */ 998 if (err != -EPERM && err != -ENODEV) 999 bt_dev_err(hdev, "urb %p failed to resubmit (%d)", 1000 urb, -err); 1001 usb_unanchor_urb(urb); 1002 } 1003 } 1004 1005 static int btusb_submit_diag_urb(struct hci_dev *hdev, gfp_t mem_flags) 1006 { 1007 struct btusb_data *data = hci_get_drvdata(hdev); 1008 struct urb *urb; 1009 unsigned char *buf; 1010 unsigned int pipe; 1011 int err, size = HCI_MAX_FRAME_SIZE; 1012 1013 BT_DBG("%s", hdev->name); 1014 1015 if (!data->diag_rx_ep) 1016 return -ENODEV; 1017 1018 urb = usb_alloc_urb(0, mem_flags); 1019 if (!urb) 1020 return -ENOMEM; 1021 1022 buf = kmalloc(size, mem_flags); 1023 if (!buf) { 1024 usb_free_urb(urb); 1025 return -ENOMEM; 1026 } 1027 1028 pipe = usb_rcvbulkpipe(data->udev, data->diag_rx_ep->bEndpointAddress); 1029 1030 usb_fill_bulk_urb(urb, data->udev, pipe, buf, size, 1031 btusb_diag_complete, hdev); 1032 1033 urb->transfer_flags |= URB_FREE_BUFFER; 1034 1035 usb_mark_last_busy(data->udev); 1036 usb_anchor_urb(urb, &data->diag_anchor); 1037 1038 err = usb_submit_urb(urb, mem_flags); 1039 if (err < 0) { 1040 if (err != -EPERM && err != -ENODEV) 1041 bt_dev_err(hdev, "urb %p submission failed (%d)", 1042 urb, -err); 1043 usb_unanchor_urb(urb); 1044 } 1045 1046 usb_free_urb(urb); 1047 1048 return err; 1049 } 1050 1051 static void btusb_tx_complete(struct urb *urb) 1052 { 1053 struct sk_buff *skb = urb->context; 1054 struct hci_dev *hdev = (struct hci_dev *)skb->dev; 1055 struct btusb_data *data = hci_get_drvdata(hdev); 1056 1057 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status, 1058 urb->actual_length); 1059 1060 if (!test_bit(HCI_RUNNING, &hdev->flags)) 1061 goto done; 1062 1063 if (!urb->status) 1064 hdev->stat.byte_tx += urb->transfer_buffer_length; 1065 else 1066 hdev->stat.err_tx++; 1067 1068 done: 1069 spin_lock(&data->txlock); 1070 data->tx_in_flight--; 1071 spin_unlock(&data->txlock); 1072 1073 kfree(urb->setup_packet); 1074 1075 kfree_skb(skb); 1076 } 1077 1078 static void btusb_isoc_tx_complete(struct urb *urb) 1079 { 1080 struct sk_buff *skb = urb->context; 1081 struct hci_dev *hdev = (struct hci_dev *)skb->dev; 1082 1083 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status, 1084 urb->actual_length); 1085 1086 if (!test_bit(HCI_RUNNING, &hdev->flags)) 1087 goto done; 1088 1089 if (!urb->status) 1090 hdev->stat.byte_tx += urb->transfer_buffer_length; 1091 else 1092 hdev->stat.err_tx++; 1093 1094 done: 1095 kfree(urb->setup_packet); 1096 1097 kfree_skb(skb); 1098 } 1099 1100 static int btusb_open(struct hci_dev *hdev) 1101 { 1102 struct btusb_data *data = hci_get_drvdata(hdev); 1103 int err; 1104 1105 BT_DBG("%s", hdev->name); 1106 1107 err = usb_autopm_get_interface(data->intf); 1108 if (err < 0) 1109 return err; 1110 1111 /* Patching USB firmware files prior to starting any URBs of HCI path 1112 * It is more safe to use USB bulk channel for downloading USB patch 1113 */ 1114 if (data->setup_on_usb) { 1115 err = data->setup_on_usb(hdev); 1116 if (err < 0) 1117 return err; 1118 } 1119 1120 data->intf->needs_remote_wakeup = 1; 1121 /* device specific wakeup source enabled and required for USB 1122 * remote wakeup while host is suspended 1123 */ 1124 device_wakeup_enable(&data->udev->dev); 1125 1126 if (test_and_set_bit(BTUSB_INTR_RUNNING, &data->flags)) 1127 goto done; 1128 1129 err = btusb_submit_intr_urb(hdev, GFP_KERNEL); 1130 if (err < 0) 1131 goto failed; 1132 1133 err = btusb_submit_bulk_urb(hdev, GFP_KERNEL); 1134 if (err < 0) { 1135 usb_kill_anchored_urbs(&data->intr_anchor); 1136 goto failed; 1137 } 1138 1139 set_bit(BTUSB_BULK_RUNNING, &data->flags); 1140 btusb_submit_bulk_urb(hdev, GFP_KERNEL); 1141 1142 if (data->diag) { 1143 if (!btusb_submit_diag_urb(hdev, GFP_KERNEL)) 1144 set_bit(BTUSB_DIAG_RUNNING, &data->flags); 1145 } 1146 1147 done: 1148 usb_autopm_put_interface(data->intf); 1149 return 0; 1150 1151 failed: 1152 clear_bit(BTUSB_INTR_RUNNING, &data->flags); 1153 usb_autopm_put_interface(data->intf); 1154 return err; 1155 } 1156 1157 static void btusb_stop_traffic(struct btusb_data *data) 1158 { 1159 usb_kill_anchored_urbs(&data->intr_anchor); 1160 usb_kill_anchored_urbs(&data->bulk_anchor); 1161 usb_kill_anchored_urbs(&data->isoc_anchor); 1162 usb_kill_anchored_urbs(&data->diag_anchor); 1163 } 1164 1165 static int btusb_close(struct hci_dev *hdev) 1166 { 1167 struct btusb_data *data = hci_get_drvdata(hdev); 1168 int err; 1169 1170 BT_DBG("%s", hdev->name); 1171 1172 cancel_work_sync(&data->work); 1173 cancel_work_sync(&data->waker); 1174 1175 clear_bit(BTUSB_ISOC_RUNNING, &data->flags); 1176 clear_bit(BTUSB_BULK_RUNNING, &data->flags); 1177 clear_bit(BTUSB_INTR_RUNNING, &data->flags); 1178 clear_bit(BTUSB_DIAG_RUNNING, &data->flags); 1179 1180 btusb_stop_traffic(data); 1181 btusb_free_frags(data); 1182 1183 err = usb_autopm_get_interface(data->intf); 1184 if (err < 0) 1185 goto failed; 1186 1187 data->intf->needs_remote_wakeup = 0; 1188 device_wakeup_disable(&data->udev->dev); 1189 usb_autopm_put_interface(data->intf); 1190 1191 failed: 1192 usb_scuttle_anchored_urbs(&data->deferred); 1193 return 0; 1194 } 1195 1196 static int btusb_flush(struct hci_dev *hdev) 1197 { 1198 struct btusb_data *data = hci_get_drvdata(hdev); 1199 1200 BT_DBG("%s", hdev->name); 1201 1202 usb_kill_anchored_urbs(&data->tx_anchor); 1203 btusb_free_frags(data); 1204 1205 return 0; 1206 } 1207 1208 static struct urb *alloc_ctrl_urb(struct hci_dev *hdev, struct sk_buff *skb) 1209 { 1210 struct btusb_data *data = hci_get_drvdata(hdev); 1211 struct usb_ctrlrequest *dr; 1212 struct urb *urb; 1213 unsigned int pipe; 1214 1215 urb = usb_alloc_urb(0, GFP_KERNEL); 1216 if (!urb) 1217 return ERR_PTR(-ENOMEM); 1218 1219 dr = kmalloc(sizeof(*dr), GFP_KERNEL); 1220 if (!dr) { 1221 usb_free_urb(urb); 1222 return ERR_PTR(-ENOMEM); 1223 } 1224 1225 dr->bRequestType = data->cmdreq_type; 1226 dr->bRequest = data->cmdreq; 1227 dr->wIndex = 0; 1228 dr->wValue = 0; 1229 dr->wLength = __cpu_to_le16(skb->len); 1230 1231 pipe = usb_sndctrlpipe(data->udev, 0x00); 1232 1233 usb_fill_control_urb(urb, data->udev, pipe, (void *)dr, 1234 skb->data, skb->len, btusb_tx_complete, skb); 1235 1236 skb->dev = (void *)hdev; 1237 1238 return urb; 1239 } 1240 1241 static struct urb *alloc_bulk_urb(struct hci_dev *hdev, struct sk_buff *skb) 1242 { 1243 struct btusb_data *data = hci_get_drvdata(hdev); 1244 struct urb *urb; 1245 unsigned int pipe; 1246 1247 if (!data->bulk_tx_ep) 1248 return ERR_PTR(-ENODEV); 1249 1250 urb = usb_alloc_urb(0, GFP_KERNEL); 1251 if (!urb) 1252 return ERR_PTR(-ENOMEM); 1253 1254 pipe = usb_sndbulkpipe(data->udev, data->bulk_tx_ep->bEndpointAddress); 1255 1256 usb_fill_bulk_urb(urb, data->udev, pipe, 1257 skb->data, skb->len, btusb_tx_complete, skb); 1258 1259 skb->dev = (void *)hdev; 1260 1261 return urb; 1262 } 1263 1264 static struct urb *alloc_isoc_urb(struct hci_dev *hdev, struct sk_buff *skb) 1265 { 1266 struct btusb_data *data = hci_get_drvdata(hdev); 1267 struct urb *urb; 1268 unsigned int pipe; 1269 1270 if (!data->isoc_tx_ep) 1271 return ERR_PTR(-ENODEV); 1272 1273 urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, GFP_KERNEL); 1274 if (!urb) 1275 return ERR_PTR(-ENOMEM); 1276 1277 pipe = usb_sndisocpipe(data->udev, data->isoc_tx_ep->bEndpointAddress); 1278 1279 usb_fill_int_urb(urb, data->udev, pipe, 1280 skb->data, skb->len, btusb_isoc_tx_complete, 1281 skb, data->isoc_tx_ep->bInterval); 1282 1283 urb->transfer_flags = URB_ISO_ASAP; 1284 1285 __fill_isoc_descriptor(urb, skb->len, 1286 le16_to_cpu(data->isoc_tx_ep->wMaxPacketSize)); 1287 1288 skb->dev = (void *)hdev; 1289 1290 return urb; 1291 } 1292 1293 static int submit_tx_urb(struct hci_dev *hdev, struct urb *urb) 1294 { 1295 struct btusb_data *data = hci_get_drvdata(hdev); 1296 int err; 1297 1298 usb_anchor_urb(urb, &data->tx_anchor); 1299 1300 err = usb_submit_urb(urb, GFP_KERNEL); 1301 if (err < 0) { 1302 if (err != -EPERM && err != -ENODEV) 1303 bt_dev_err(hdev, "urb %p submission failed (%d)", 1304 urb, -err); 1305 kfree(urb->setup_packet); 1306 usb_unanchor_urb(urb); 1307 } else { 1308 usb_mark_last_busy(data->udev); 1309 } 1310 1311 usb_free_urb(urb); 1312 return err; 1313 } 1314 1315 static int submit_or_queue_tx_urb(struct hci_dev *hdev, struct urb *urb) 1316 { 1317 struct btusb_data *data = hci_get_drvdata(hdev); 1318 unsigned long flags; 1319 bool suspending; 1320 1321 spin_lock_irqsave(&data->txlock, flags); 1322 suspending = test_bit(BTUSB_SUSPENDING, &data->flags); 1323 if (!suspending) 1324 data->tx_in_flight++; 1325 spin_unlock_irqrestore(&data->txlock, flags); 1326 1327 if (!suspending) 1328 return submit_tx_urb(hdev, urb); 1329 1330 usb_anchor_urb(urb, &data->deferred); 1331 schedule_work(&data->waker); 1332 1333 usb_free_urb(urb); 1334 return 0; 1335 } 1336 1337 static int btusb_send_frame(struct hci_dev *hdev, struct sk_buff *skb) 1338 { 1339 struct urb *urb; 1340 1341 BT_DBG("%s", hdev->name); 1342 1343 switch (hci_skb_pkt_type(skb)) { 1344 case HCI_COMMAND_PKT: 1345 urb = alloc_ctrl_urb(hdev, skb); 1346 if (IS_ERR(urb)) 1347 return PTR_ERR(urb); 1348 1349 hdev->stat.cmd_tx++; 1350 return submit_or_queue_tx_urb(hdev, urb); 1351 1352 case HCI_ACLDATA_PKT: 1353 urb = alloc_bulk_urb(hdev, skb); 1354 if (IS_ERR(urb)) 1355 return PTR_ERR(urb); 1356 1357 hdev->stat.acl_tx++; 1358 return submit_or_queue_tx_urb(hdev, urb); 1359 1360 case HCI_SCODATA_PKT: 1361 if (hci_conn_num(hdev, SCO_LINK) < 1) 1362 return -ENODEV; 1363 1364 urb = alloc_isoc_urb(hdev, skb); 1365 if (IS_ERR(urb)) 1366 return PTR_ERR(urb); 1367 1368 hdev->stat.sco_tx++; 1369 return submit_tx_urb(hdev, urb); 1370 } 1371 1372 return -EILSEQ; 1373 } 1374 1375 static void btusb_notify(struct hci_dev *hdev, unsigned int evt) 1376 { 1377 struct btusb_data *data = hci_get_drvdata(hdev); 1378 1379 BT_DBG("%s evt %d", hdev->name, evt); 1380 1381 if (hci_conn_num(hdev, SCO_LINK) != data->sco_num) { 1382 data->sco_num = hci_conn_num(hdev, SCO_LINK); 1383 schedule_work(&data->work); 1384 } 1385 } 1386 1387 static inline int __set_isoc_interface(struct hci_dev *hdev, int altsetting) 1388 { 1389 struct btusb_data *data = hci_get_drvdata(hdev); 1390 struct usb_interface *intf = data->isoc; 1391 struct usb_endpoint_descriptor *ep_desc; 1392 int i, err; 1393 1394 if (!data->isoc) 1395 return -ENODEV; 1396 1397 err = usb_set_interface(data->udev, data->isoc_ifnum, altsetting); 1398 if (err < 0) { 1399 bt_dev_err(hdev, "setting interface failed (%d)", -err); 1400 return err; 1401 } 1402 1403 data->isoc_altsetting = altsetting; 1404 1405 data->isoc_tx_ep = NULL; 1406 data->isoc_rx_ep = NULL; 1407 1408 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) { 1409 ep_desc = &intf->cur_altsetting->endpoint[i].desc; 1410 1411 if (!data->isoc_tx_ep && usb_endpoint_is_isoc_out(ep_desc)) { 1412 data->isoc_tx_ep = ep_desc; 1413 continue; 1414 } 1415 1416 if (!data->isoc_rx_ep && usb_endpoint_is_isoc_in(ep_desc)) { 1417 data->isoc_rx_ep = ep_desc; 1418 continue; 1419 } 1420 } 1421 1422 if (!data->isoc_tx_ep || !data->isoc_rx_ep) { 1423 bt_dev_err(hdev, "invalid SCO descriptors"); 1424 return -ENODEV; 1425 } 1426 1427 return 0; 1428 } 1429 1430 static void btusb_work(struct work_struct *work) 1431 { 1432 struct btusb_data *data = container_of(work, struct btusb_data, work); 1433 struct hci_dev *hdev = data->hdev; 1434 int new_alts; 1435 int err; 1436 1437 if (data->sco_num > 0) { 1438 if (!test_bit(BTUSB_DID_ISO_RESUME, &data->flags)) { 1439 err = usb_autopm_get_interface(data->isoc ? data->isoc : data->intf); 1440 if (err < 0) { 1441 clear_bit(BTUSB_ISOC_RUNNING, &data->flags); 1442 usb_kill_anchored_urbs(&data->isoc_anchor); 1443 return; 1444 } 1445 1446 set_bit(BTUSB_DID_ISO_RESUME, &data->flags); 1447 } 1448 1449 if (hdev->voice_setting & 0x0020) { 1450 static const int alts[3] = { 2, 4, 5 }; 1451 1452 new_alts = alts[data->sco_num - 1]; 1453 } else { 1454 new_alts = data->sco_num; 1455 } 1456 1457 if (data->isoc_altsetting != new_alts) { 1458 unsigned long flags; 1459 1460 clear_bit(BTUSB_ISOC_RUNNING, &data->flags); 1461 usb_kill_anchored_urbs(&data->isoc_anchor); 1462 1463 /* When isochronous alternate setting needs to be 1464 * changed, because SCO connection has been added 1465 * or removed, a packet fragment may be left in the 1466 * reassembling state. This could lead to wrongly 1467 * assembled fragments. 1468 * 1469 * Clear outstanding fragment when selecting a new 1470 * alternate setting. 1471 */ 1472 spin_lock_irqsave(&data->rxlock, flags); 1473 kfree_skb(data->sco_skb); 1474 data->sco_skb = NULL; 1475 spin_unlock_irqrestore(&data->rxlock, flags); 1476 1477 if (__set_isoc_interface(hdev, new_alts) < 0) 1478 return; 1479 } 1480 1481 if (!test_and_set_bit(BTUSB_ISOC_RUNNING, &data->flags)) { 1482 if (btusb_submit_isoc_urb(hdev, GFP_KERNEL) < 0) 1483 clear_bit(BTUSB_ISOC_RUNNING, &data->flags); 1484 else 1485 btusb_submit_isoc_urb(hdev, GFP_KERNEL); 1486 } 1487 } else { 1488 clear_bit(BTUSB_ISOC_RUNNING, &data->flags); 1489 usb_kill_anchored_urbs(&data->isoc_anchor); 1490 1491 __set_isoc_interface(hdev, 0); 1492 if (test_and_clear_bit(BTUSB_DID_ISO_RESUME, &data->flags)) 1493 usb_autopm_put_interface(data->isoc ? data->isoc : data->intf); 1494 } 1495 } 1496 1497 static void btusb_waker(struct work_struct *work) 1498 { 1499 struct btusb_data *data = container_of(work, struct btusb_data, waker); 1500 int err; 1501 1502 err = usb_autopm_get_interface(data->intf); 1503 if (err < 0) 1504 return; 1505 1506 usb_autopm_put_interface(data->intf); 1507 } 1508 1509 static int btusb_setup_bcm92035(struct hci_dev *hdev) 1510 { 1511 struct sk_buff *skb; 1512 u8 val = 0x00; 1513 1514 BT_DBG("%s", hdev->name); 1515 1516 skb = __hci_cmd_sync(hdev, 0xfc3b, 1, &val, HCI_INIT_TIMEOUT); 1517 if (IS_ERR(skb)) 1518 bt_dev_err(hdev, "BCM92035 command failed (%ld)", PTR_ERR(skb)); 1519 else 1520 kfree_skb(skb); 1521 1522 return 0; 1523 } 1524 1525 static int btusb_setup_csr(struct hci_dev *hdev) 1526 { 1527 struct hci_rp_read_local_version *rp; 1528 struct sk_buff *skb; 1529 1530 BT_DBG("%s", hdev->name); 1531 1532 skb = __hci_cmd_sync(hdev, HCI_OP_READ_LOCAL_VERSION, 0, NULL, 1533 HCI_INIT_TIMEOUT); 1534 if (IS_ERR(skb)) { 1535 int err = PTR_ERR(skb); 1536 bt_dev_err(hdev, "CSR: Local version failed (%d)", err); 1537 return err; 1538 } 1539 1540 if (skb->len != sizeof(struct hci_rp_read_local_version)) { 1541 bt_dev_err(hdev, "CSR: Local version length mismatch"); 1542 kfree_skb(skb); 1543 return -EIO; 1544 } 1545 1546 rp = (struct hci_rp_read_local_version *)skb->data; 1547 1548 /* Detect controllers which aren't real CSR ones. */ 1549 if (le16_to_cpu(rp->manufacturer) != 10 || 1550 le16_to_cpu(rp->lmp_subver) == 0x0c5c) { 1551 /* Clear the reset quirk since this is not an actual 1552 * early Bluetooth 1.1 device from CSR. 1553 */ 1554 clear_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks); 1555 1556 /* These fake CSR controllers have all a broken 1557 * stored link key handling and so just disable it. 1558 */ 1559 set_bit(HCI_QUIRK_BROKEN_STORED_LINK_KEY, &hdev->quirks); 1560 } 1561 1562 kfree_skb(skb); 1563 1564 return 0; 1565 } 1566 1567 static const struct firmware *btusb_setup_intel_get_fw(struct hci_dev *hdev, 1568 struct intel_version *ver) 1569 { 1570 const struct firmware *fw; 1571 char fwname[64]; 1572 int ret; 1573 1574 snprintf(fwname, sizeof(fwname), 1575 "intel/ibt-hw-%x.%x.%x-fw-%x.%x.%x.%x.%x.bseq", 1576 ver->hw_platform, ver->hw_variant, ver->hw_revision, 1577 ver->fw_variant, ver->fw_revision, ver->fw_build_num, 1578 ver->fw_build_ww, ver->fw_build_yy); 1579 1580 ret = request_firmware(&fw, fwname, &hdev->dev); 1581 if (ret < 0) { 1582 if (ret == -EINVAL) { 1583 BT_ERR("%s Intel firmware file request failed (%d)", 1584 hdev->name, ret); 1585 return NULL; 1586 } 1587 1588 BT_ERR("%s failed to open Intel firmware file: %s(%d)", 1589 hdev->name, fwname, ret); 1590 1591 /* If the correct firmware patch file is not found, use the 1592 * default firmware patch file instead 1593 */ 1594 snprintf(fwname, sizeof(fwname), "intel/ibt-hw-%x.%x.bseq", 1595 ver->hw_platform, ver->hw_variant); 1596 if (request_firmware(&fw, fwname, &hdev->dev) < 0) { 1597 BT_ERR("%s failed to open default Intel fw file: %s", 1598 hdev->name, fwname); 1599 return NULL; 1600 } 1601 } 1602 1603 bt_dev_info(hdev, "Intel Bluetooth firmware file: %s", fwname); 1604 1605 return fw; 1606 } 1607 1608 static int btusb_setup_intel_patching(struct hci_dev *hdev, 1609 const struct firmware *fw, 1610 const u8 **fw_ptr, int *disable_patch) 1611 { 1612 struct sk_buff *skb; 1613 struct hci_command_hdr *cmd; 1614 const u8 *cmd_param; 1615 struct hci_event_hdr *evt = NULL; 1616 const u8 *evt_param = NULL; 1617 int remain = fw->size - (*fw_ptr - fw->data); 1618 1619 /* The first byte indicates the types of the patch command or event. 1620 * 0x01 means HCI command and 0x02 is HCI event. If the first bytes 1621 * in the current firmware buffer doesn't start with 0x01 or 1622 * the size of remain buffer is smaller than HCI command header, 1623 * the firmware file is corrupted and it should stop the patching 1624 * process. 1625 */ 1626 if (remain > HCI_COMMAND_HDR_SIZE && *fw_ptr[0] != 0x01) { 1627 BT_ERR("%s Intel fw corrupted: invalid cmd read", hdev->name); 1628 return -EINVAL; 1629 } 1630 (*fw_ptr)++; 1631 remain--; 1632 1633 cmd = (struct hci_command_hdr *)(*fw_ptr); 1634 *fw_ptr += sizeof(*cmd); 1635 remain -= sizeof(*cmd); 1636 1637 /* Ensure that the remain firmware data is long enough than the length 1638 * of command parameter. If not, the firmware file is corrupted. 1639 */ 1640 if (remain < cmd->plen) { 1641 BT_ERR("%s Intel fw corrupted: invalid cmd len", hdev->name); 1642 return -EFAULT; 1643 } 1644 1645 /* If there is a command that loads a patch in the firmware 1646 * file, then enable the patch upon success, otherwise just 1647 * disable the manufacturer mode, for example patch activation 1648 * is not required when the default firmware patch file is used 1649 * because there are no patch data to load. 1650 */ 1651 if (*disable_patch && le16_to_cpu(cmd->opcode) == 0xfc8e) 1652 *disable_patch = 0; 1653 1654 cmd_param = *fw_ptr; 1655 *fw_ptr += cmd->plen; 1656 remain -= cmd->plen; 1657 1658 /* This reads the expected events when the above command is sent to the 1659 * device. Some vendor commands expects more than one events, for 1660 * example command status event followed by vendor specific event. 1661 * For this case, it only keeps the last expected event. so the command 1662 * can be sent with __hci_cmd_sync_ev() which returns the sk_buff of 1663 * last expected event. 1664 */ 1665 while (remain > HCI_EVENT_HDR_SIZE && *fw_ptr[0] == 0x02) { 1666 (*fw_ptr)++; 1667 remain--; 1668 1669 evt = (struct hci_event_hdr *)(*fw_ptr); 1670 *fw_ptr += sizeof(*evt); 1671 remain -= sizeof(*evt); 1672 1673 if (remain < evt->plen) { 1674 BT_ERR("%s Intel fw corrupted: invalid evt len", 1675 hdev->name); 1676 return -EFAULT; 1677 } 1678 1679 evt_param = *fw_ptr; 1680 *fw_ptr += evt->plen; 1681 remain -= evt->plen; 1682 } 1683 1684 /* Every HCI commands in the firmware file has its correspond event. 1685 * If event is not found or remain is smaller than zero, the firmware 1686 * file is corrupted. 1687 */ 1688 if (!evt || !evt_param || remain < 0) { 1689 BT_ERR("%s Intel fw corrupted: invalid evt read", hdev->name); 1690 return -EFAULT; 1691 } 1692 1693 skb = __hci_cmd_sync_ev(hdev, le16_to_cpu(cmd->opcode), cmd->plen, 1694 cmd_param, evt->evt, HCI_INIT_TIMEOUT); 1695 if (IS_ERR(skb)) { 1696 BT_ERR("%s sending Intel patch command (0x%4.4x) failed (%ld)", 1697 hdev->name, cmd->opcode, PTR_ERR(skb)); 1698 return PTR_ERR(skb); 1699 } 1700 1701 /* It ensures that the returned event matches the event data read from 1702 * the firmware file. At fist, it checks the length and then 1703 * the contents of the event. 1704 */ 1705 if (skb->len != evt->plen) { 1706 BT_ERR("%s mismatch event length (opcode 0x%4.4x)", hdev->name, 1707 le16_to_cpu(cmd->opcode)); 1708 kfree_skb(skb); 1709 return -EFAULT; 1710 } 1711 1712 if (memcmp(skb->data, evt_param, evt->plen)) { 1713 BT_ERR("%s mismatch event parameter (opcode 0x%4.4x)", 1714 hdev->name, le16_to_cpu(cmd->opcode)); 1715 kfree_skb(skb); 1716 return -EFAULT; 1717 } 1718 kfree_skb(skb); 1719 1720 return 0; 1721 } 1722 1723 static int btusb_setup_intel(struct hci_dev *hdev) 1724 { 1725 struct sk_buff *skb; 1726 const struct firmware *fw; 1727 const u8 *fw_ptr; 1728 int disable_patch, err; 1729 struct intel_version ver; 1730 1731 BT_DBG("%s", hdev->name); 1732 1733 /* The controller has a bug with the first HCI command sent to it 1734 * returning number of completed commands as zero. This would stall the 1735 * command processing in the Bluetooth core. 1736 * 1737 * As a workaround, send HCI Reset command first which will reset the 1738 * number of completed commands and allow normal command processing 1739 * from now on. 1740 */ 1741 skb = __hci_cmd_sync(hdev, HCI_OP_RESET, 0, NULL, HCI_INIT_TIMEOUT); 1742 if (IS_ERR(skb)) { 1743 BT_ERR("%s sending initial HCI reset command failed (%ld)", 1744 hdev->name, PTR_ERR(skb)); 1745 return PTR_ERR(skb); 1746 } 1747 kfree_skb(skb); 1748 1749 /* Read Intel specific controller version first to allow selection of 1750 * which firmware file to load. 1751 * 1752 * The returned information are hardware variant and revision plus 1753 * firmware variant, revision and build number. 1754 */ 1755 err = btintel_read_version(hdev, &ver); 1756 if (err) 1757 return err; 1758 1759 bt_dev_info(hdev, "read Intel version: %02x%02x%02x%02x%02x%02x%02x%02x%02x", 1760 ver.hw_platform, ver.hw_variant, ver.hw_revision, 1761 ver.fw_variant, ver.fw_revision, ver.fw_build_num, 1762 ver.fw_build_ww, ver.fw_build_yy, ver.fw_patch_num); 1763 1764 /* fw_patch_num indicates the version of patch the device currently 1765 * have. If there is no patch data in the device, it is always 0x00. 1766 * So, if it is other than 0x00, no need to patch the device again. 1767 */ 1768 if (ver.fw_patch_num) { 1769 bt_dev_info(hdev, "Intel device is already patched. " 1770 "patch num: %02x", ver.fw_patch_num); 1771 goto complete; 1772 } 1773 1774 /* Opens the firmware patch file based on the firmware version read 1775 * from the controller. If it fails to open the matching firmware 1776 * patch file, it tries to open the default firmware patch file. 1777 * If no patch file is found, allow the device to operate without 1778 * a patch. 1779 */ 1780 fw = btusb_setup_intel_get_fw(hdev, &ver); 1781 if (!fw) 1782 goto complete; 1783 fw_ptr = fw->data; 1784 1785 /* Enable the manufacturer mode of the controller. 1786 * Only while this mode is enabled, the driver can download the 1787 * firmware patch data and configuration parameters. 1788 */ 1789 err = btintel_enter_mfg(hdev); 1790 if (err) { 1791 release_firmware(fw); 1792 return err; 1793 } 1794 1795 disable_patch = 1; 1796 1797 /* The firmware data file consists of list of Intel specific HCI 1798 * commands and its expected events. The first byte indicates the 1799 * type of the message, either HCI command or HCI event. 1800 * 1801 * It reads the command and its expected event from the firmware file, 1802 * and send to the controller. Once __hci_cmd_sync_ev() returns, 1803 * the returned event is compared with the event read from the firmware 1804 * file and it will continue until all the messages are downloaded to 1805 * the controller. 1806 * 1807 * Once the firmware patching is completed successfully, 1808 * the manufacturer mode is disabled with reset and activating the 1809 * downloaded patch. 1810 * 1811 * If the firmware patching fails, the manufacturer mode is 1812 * disabled with reset and deactivating the patch. 1813 * 1814 * If the default patch file is used, no reset is done when disabling 1815 * the manufacturer. 1816 */ 1817 while (fw->size > fw_ptr - fw->data) { 1818 int ret; 1819 1820 ret = btusb_setup_intel_patching(hdev, fw, &fw_ptr, 1821 &disable_patch); 1822 if (ret < 0) 1823 goto exit_mfg_deactivate; 1824 } 1825 1826 release_firmware(fw); 1827 1828 if (disable_patch) 1829 goto exit_mfg_disable; 1830 1831 /* Patching completed successfully and disable the manufacturer mode 1832 * with reset and activate the downloaded firmware patches. 1833 */ 1834 err = btintel_exit_mfg(hdev, true, true); 1835 if (err) 1836 return err; 1837 1838 bt_dev_info(hdev, "Intel firmware patch completed and activated"); 1839 1840 goto complete; 1841 1842 exit_mfg_disable: 1843 /* Disable the manufacturer mode without reset */ 1844 err = btintel_exit_mfg(hdev, false, false); 1845 if (err) 1846 return err; 1847 1848 bt_dev_info(hdev, "Intel firmware patch completed"); 1849 1850 goto complete; 1851 1852 exit_mfg_deactivate: 1853 release_firmware(fw); 1854 1855 /* Patching failed. Disable the manufacturer mode with reset and 1856 * deactivate the downloaded firmware patches. 1857 */ 1858 err = btintel_exit_mfg(hdev, true, false); 1859 if (err) 1860 return err; 1861 1862 bt_dev_info(hdev, "Intel firmware patch completed and deactivated"); 1863 1864 complete: 1865 /* Set the event mask for Intel specific vendor events. This enables 1866 * a few extra events that are useful during general operation. 1867 */ 1868 btintel_set_event_mask_mfg(hdev, false); 1869 1870 btintel_check_bdaddr(hdev); 1871 return 0; 1872 } 1873 1874 static int inject_cmd_complete(struct hci_dev *hdev, __u16 opcode) 1875 { 1876 struct sk_buff *skb; 1877 struct hci_event_hdr *hdr; 1878 struct hci_ev_cmd_complete *evt; 1879 1880 skb = bt_skb_alloc(sizeof(*hdr) + sizeof(*evt) + 1, GFP_ATOMIC); 1881 if (!skb) 1882 return -ENOMEM; 1883 1884 hdr = skb_put(skb, sizeof(*hdr)); 1885 hdr->evt = HCI_EV_CMD_COMPLETE; 1886 hdr->plen = sizeof(*evt) + 1; 1887 1888 evt = skb_put(skb, sizeof(*evt)); 1889 evt->ncmd = 0x01; 1890 evt->opcode = cpu_to_le16(opcode); 1891 1892 skb_put_u8(skb, 0x00); 1893 1894 hci_skb_pkt_type(skb) = HCI_EVENT_PKT; 1895 1896 return hci_recv_frame(hdev, skb); 1897 } 1898 1899 static int btusb_recv_bulk_intel(struct btusb_data *data, void *buffer, 1900 int count) 1901 { 1902 /* When the device is in bootloader mode, then it can send 1903 * events via the bulk endpoint. These events are treated the 1904 * same way as the ones received from the interrupt endpoint. 1905 */ 1906 if (test_bit(BTUSB_BOOTLOADER, &data->flags)) 1907 return btusb_recv_intr(data, buffer, count); 1908 1909 return btusb_recv_bulk(data, buffer, count); 1910 } 1911 1912 static void btusb_intel_bootup(struct btusb_data *data, const void *ptr, 1913 unsigned int len) 1914 { 1915 const struct intel_bootup *evt = ptr; 1916 1917 if (len != sizeof(*evt)) 1918 return; 1919 1920 if (test_and_clear_bit(BTUSB_BOOTING, &data->flags)) { 1921 smp_mb__after_atomic(); 1922 wake_up_bit(&data->flags, BTUSB_BOOTING); 1923 } 1924 } 1925 1926 static void btusb_intel_secure_send_result(struct btusb_data *data, 1927 const void *ptr, unsigned int len) 1928 { 1929 const struct intel_secure_send_result *evt = ptr; 1930 1931 if (len != sizeof(*evt)) 1932 return; 1933 1934 if (evt->result) 1935 set_bit(BTUSB_FIRMWARE_FAILED, &data->flags); 1936 1937 if (test_and_clear_bit(BTUSB_DOWNLOADING, &data->flags) && 1938 test_bit(BTUSB_FIRMWARE_LOADED, &data->flags)) { 1939 smp_mb__after_atomic(); 1940 wake_up_bit(&data->flags, BTUSB_DOWNLOADING); 1941 } 1942 } 1943 1944 static int btusb_recv_event_intel(struct hci_dev *hdev, struct sk_buff *skb) 1945 { 1946 struct btusb_data *data = hci_get_drvdata(hdev); 1947 1948 if (test_bit(BTUSB_BOOTLOADER, &data->flags)) { 1949 struct hci_event_hdr *hdr = (void *)skb->data; 1950 1951 if (skb->len > HCI_EVENT_HDR_SIZE && hdr->evt == 0xff && 1952 hdr->plen > 0) { 1953 const void *ptr = skb->data + HCI_EVENT_HDR_SIZE + 1; 1954 unsigned int len = skb->len - HCI_EVENT_HDR_SIZE - 1; 1955 1956 switch (skb->data[2]) { 1957 case 0x02: 1958 /* When switching to the operational firmware 1959 * the device sends a vendor specific event 1960 * indicating that the bootup completed. 1961 */ 1962 btusb_intel_bootup(data, ptr, len); 1963 break; 1964 case 0x06: 1965 /* When the firmware loading completes the 1966 * device sends out a vendor specific event 1967 * indicating the result of the firmware 1968 * loading. 1969 */ 1970 btusb_intel_secure_send_result(data, ptr, len); 1971 break; 1972 } 1973 } 1974 } 1975 1976 return hci_recv_frame(hdev, skb); 1977 } 1978 1979 static int btusb_send_frame_intel(struct hci_dev *hdev, struct sk_buff *skb) 1980 { 1981 struct btusb_data *data = hci_get_drvdata(hdev); 1982 struct urb *urb; 1983 1984 BT_DBG("%s", hdev->name); 1985 1986 switch (hci_skb_pkt_type(skb)) { 1987 case HCI_COMMAND_PKT: 1988 if (test_bit(BTUSB_BOOTLOADER, &data->flags)) { 1989 struct hci_command_hdr *cmd = (void *)skb->data; 1990 __u16 opcode = le16_to_cpu(cmd->opcode); 1991 1992 /* When in bootloader mode and the command 0xfc09 1993 * is received, it needs to be send down the 1994 * bulk endpoint. So allocate a bulk URB instead. 1995 */ 1996 if (opcode == 0xfc09) 1997 urb = alloc_bulk_urb(hdev, skb); 1998 else 1999 urb = alloc_ctrl_urb(hdev, skb); 2000 2001 /* When the 0xfc01 command is issued to boot into 2002 * the operational firmware, it will actually not 2003 * send a command complete event. To keep the flow 2004 * control working inject that event here. 2005 */ 2006 if (opcode == 0xfc01) 2007 inject_cmd_complete(hdev, opcode); 2008 } else { 2009 urb = alloc_ctrl_urb(hdev, skb); 2010 } 2011 if (IS_ERR(urb)) 2012 return PTR_ERR(urb); 2013 2014 hdev->stat.cmd_tx++; 2015 return submit_or_queue_tx_urb(hdev, urb); 2016 2017 case HCI_ACLDATA_PKT: 2018 urb = alloc_bulk_urb(hdev, skb); 2019 if (IS_ERR(urb)) 2020 return PTR_ERR(urb); 2021 2022 hdev->stat.acl_tx++; 2023 return submit_or_queue_tx_urb(hdev, urb); 2024 2025 case HCI_SCODATA_PKT: 2026 if (hci_conn_num(hdev, SCO_LINK) < 1) 2027 return -ENODEV; 2028 2029 urb = alloc_isoc_urb(hdev, skb); 2030 if (IS_ERR(urb)) 2031 return PTR_ERR(urb); 2032 2033 hdev->stat.sco_tx++; 2034 return submit_tx_urb(hdev, urb); 2035 } 2036 2037 return -EILSEQ; 2038 } 2039 2040 static int btusb_setup_intel_new(struct hci_dev *hdev) 2041 { 2042 struct btusb_data *data = hci_get_drvdata(hdev); 2043 struct intel_version ver; 2044 struct intel_boot_params params; 2045 const struct firmware *fw; 2046 u32 boot_param; 2047 char fwname[64]; 2048 ktime_t calltime, delta, rettime; 2049 unsigned long long duration; 2050 int err; 2051 2052 BT_DBG("%s", hdev->name); 2053 2054 /* Set the default boot parameter to 0x0 and it is updated to 2055 * SKU specific boot parameter after reading Intel_Write_Boot_Params 2056 * command while downloading the firmware. 2057 */ 2058 boot_param = 0x00000000; 2059 2060 calltime = ktime_get(); 2061 2062 /* Read the Intel version information to determine if the device 2063 * is in bootloader mode or if it already has operational firmware 2064 * loaded. 2065 */ 2066 err = btintel_read_version(hdev, &ver); 2067 if (err) 2068 return err; 2069 2070 /* The hardware platform number has a fixed value of 0x37 and 2071 * for now only accept this single value. 2072 */ 2073 if (ver.hw_platform != 0x37) { 2074 BT_ERR("%s: Unsupported Intel hardware platform (%u)", 2075 hdev->name, ver.hw_platform); 2076 return -EINVAL; 2077 } 2078 2079 /* Check for supported iBT hardware variants of this firmware 2080 * loading method. 2081 * 2082 * This check has been put in place to ensure correct forward 2083 * compatibility options when newer hardware variants come along. 2084 */ 2085 switch (ver.hw_variant) { 2086 case 0x0b: /* SfP */ 2087 case 0x0c: /* WsP */ 2088 case 0x11: /* JfP */ 2089 case 0x12: /* ThP */ 2090 case 0x13: /* HrP */ 2091 case 0x14: /* QnJ, IcP */ 2092 break; 2093 default: 2094 BT_ERR("%s: Unsupported Intel hardware variant (%u)", 2095 hdev->name, ver.hw_variant); 2096 return -EINVAL; 2097 } 2098 2099 btintel_version_info(hdev, &ver); 2100 2101 /* The firmware variant determines if the device is in bootloader 2102 * mode or is running operational firmware. The value 0x06 identifies 2103 * the bootloader and the value 0x23 identifies the operational 2104 * firmware. 2105 * 2106 * When the operational firmware is already present, then only 2107 * the check for valid Bluetooth device address is needed. This 2108 * determines if the device will be added as configured or 2109 * unconfigured controller. 2110 * 2111 * It is not possible to use the Secure Boot Parameters in this 2112 * case since that command is only available in bootloader mode. 2113 */ 2114 if (ver.fw_variant == 0x23) { 2115 clear_bit(BTUSB_BOOTLOADER, &data->flags); 2116 btintel_check_bdaddr(hdev); 2117 return 0; 2118 } 2119 2120 /* If the device is not in bootloader mode, then the only possible 2121 * choice is to return an error and abort the device initialization. 2122 */ 2123 if (ver.fw_variant != 0x06) { 2124 BT_ERR("%s: Unsupported Intel firmware variant (%u)", 2125 hdev->name, ver.fw_variant); 2126 return -ENODEV; 2127 } 2128 2129 /* Read the secure boot parameters to identify the operating 2130 * details of the bootloader. 2131 */ 2132 err = btintel_read_boot_params(hdev, ¶ms); 2133 if (err) 2134 return err; 2135 2136 /* It is required that every single firmware fragment is acknowledged 2137 * with a command complete event. If the boot parameters indicate 2138 * that this bootloader does not send them, then abort the setup. 2139 */ 2140 if (params.limited_cce != 0x00) { 2141 BT_ERR("%s: Unsupported Intel firmware loading method (%u)", 2142 hdev->name, params.limited_cce); 2143 return -EINVAL; 2144 } 2145 2146 /* If the OTP has no valid Bluetooth device address, then there will 2147 * also be no valid address for the operational firmware. 2148 */ 2149 if (!bacmp(¶ms.otp_bdaddr, BDADDR_ANY)) { 2150 bt_dev_info(hdev, "No device address configured"); 2151 set_bit(HCI_QUIRK_INVALID_BDADDR, &hdev->quirks); 2152 } 2153 2154 /* With this Intel bootloader only the hardware variant and device 2155 * revision information are used to select the right firmware for SfP 2156 * and WsP. 2157 * 2158 * The firmware filename is ibt-<hw_variant>-<dev_revid>.sfi. 2159 * 2160 * Currently the supported hardware variants are: 2161 * 11 (0x0b) for iBT3.0 (LnP/SfP) 2162 * 12 (0x0c) for iBT3.5 (WsP) 2163 * 2164 * For ThP/JfP and for future SKU's, the FW name varies based on HW 2165 * variant, HW revision and FW revision, as these are dependent on CNVi 2166 * and RF Combination. 2167 * 2168 * 17 (0x11) for iBT3.5 (JfP) 2169 * 18 (0x12) for iBT3.5 (ThP) 2170 * 2171 * The firmware file name for these will be 2172 * ibt-<hw_variant>-<hw_revision>-<fw_revision>.sfi. 2173 * 2174 */ 2175 switch (ver.hw_variant) { 2176 case 0x0b: /* SfP */ 2177 case 0x0c: /* WsP */ 2178 snprintf(fwname, sizeof(fwname), "intel/ibt-%u-%u.sfi", 2179 le16_to_cpu(ver.hw_variant), 2180 le16_to_cpu(params.dev_revid)); 2181 break; 2182 case 0x11: /* JfP */ 2183 case 0x12: /* ThP */ 2184 case 0x13: /* HrP */ 2185 case 0x14: /* QnJ, IcP */ 2186 snprintf(fwname, sizeof(fwname), "intel/ibt-%u-%u-%u.sfi", 2187 le16_to_cpu(ver.hw_variant), 2188 le16_to_cpu(ver.hw_revision), 2189 le16_to_cpu(ver.fw_revision)); 2190 break; 2191 default: 2192 BT_ERR("%s: Unsupported Intel firmware naming", hdev->name); 2193 return -EINVAL; 2194 } 2195 2196 err = request_firmware(&fw, fwname, &hdev->dev); 2197 if (err < 0) { 2198 BT_ERR("%s: Failed to load Intel firmware file (%d)", 2199 hdev->name, err); 2200 return err; 2201 } 2202 2203 bt_dev_info(hdev, "Found device firmware: %s", fwname); 2204 2205 /* Save the DDC file name for later use to apply once the firmware 2206 * downloading is done. 2207 */ 2208 switch (ver.hw_variant) { 2209 case 0x0b: /* SfP */ 2210 case 0x0c: /* WsP */ 2211 snprintf(fwname, sizeof(fwname), "intel/ibt-%u-%u.ddc", 2212 le16_to_cpu(ver.hw_variant), 2213 le16_to_cpu(params.dev_revid)); 2214 break; 2215 case 0x11: /* JfP */ 2216 case 0x12: /* ThP */ 2217 case 0x13: /* HrP */ 2218 case 0x14: /* QnJ, IcP */ 2219 snprintf(fwname, sizeof(fwname), "intel/ibt-%u-%u-%u.ddc", 2220 le16_to_cpu(ver.hw_variant), 2221 le16_to_cpu(ver.hw_revision), 2222 le16_to_cpu(ver.fw_revision)); 2223 break; 2224 default: 2225 BT_ERR("%s: Unsupported Intel firmware naming", hdev->name); 2226 return -EINVAL; 2227 } 2228 2229 if (fw->size < 644) { 2230 BT_ERR("%s: Invalid size of firmware file (%zu)", 2231 hdev->name, fw->size); 2232 err = -EBADF; 2233 goto done; 2234 } 2235 2236 set_bit(BTUSB_DOWNLOADING, &data->flags); 2237 2238 /* Start firmware downloading and get boot parameter */ 2239 err = btintel_download_firmware(hdev, fw, &boot_param); 2240 if (err < 0) 2241 goto done; 2242 2243 set_bit(BTUSB_FIRMWARE_LOADED, &data->flags); 2244 2245 bt_dev_info(hdev, "Waiting for firmware download to complete"); 2246 2247 /* Before switching the device into operational mode and with that 2248 * booting the loaded firmware, wait for the bootloader notification 2249 * that all fragments have been successfully received. 2250 * 2251 * When the event processing receives the notification, then the 2252 * BTUSB_DOWNLOADING flag will be cleared. 2253 * 2254 * The firmware loading should not take longer than 5 seconds 2255 * and thus just timeout if that happens and fail the setup 2256 * of this device. 2257 */ 2258 err = wait_on_bit_timeout(&data->flags, BTUSB_DOWNLOADING, 2259 TASK_INTERRUPTIBLE, 2260 msecs_to_jiffies(5000)); 2261 if (err == -EINTR) { 2262 BT_ERR("%s: Firmware loading interrupted", hdev->name); 2263 goto done; 2264 } 2265 2266 if (err) { 2267 BT_ERR("%s: Firmware loading timeout", hdev->name); 2268 err = -ETIMEDOUT; 2269 goto done; 2270 } 2271 2272 if (test_bit(BTUSB_FIRMWARE_FAILED, &data->flags)) { 2273 BT_ERR("%s: Firmware loading failed", hdev->name); 2274 err = -ENOEXEC; 2275 goto done; 2276 } 2277 2278 rettime = ktime_get(); 2279 delta = ktime_sub(rettime, calltime); 2280 duration = (unsigned long long) ktime_to_ns(delta) >> 10; 2281 2282 bt_dev_info(hdev, "Firmware loaded in %llu usecs", duration); 2283 2284 done: 2285 release_firmware(fw); 2286 2287 if (err < 0) 2288 return err; 2289 2290 calltime = ktime_get(); 2291 2292 set_bit(BTUSB_BOOTING, &data->flags); 2293 2294 err = btintel_send_intel_reset(hdev, boot_param); 2295 if (err) 2296 return err; 2297 2298 /* The bootloader will not indicate when the device is ready. This 2299 * is done by the operational firmware sending bootup notification. 2300 * 2301 * Booting into operational firmware should not take longer than 2302 * 1 second. However if that happens, then just fail the setup 2303 * since something went wrong. 2304 */ 2305 bt_dev_info(hdev, "Waiting for device to boot"); 2306 2307 err = wait_on_bit_timeout(&data->flags, BTUSB_BOOTING, 2308 TASK_INTERRUPTIBLE, 2309 msecs_to_jiffies(1000)); 2310 2311 if (err == -EINTR) { 2312 BT_ERR("%s: Device boot interrupted", hdev->name); 2313 return -EINTR; 2314 } 2315 2316 if (err) { 2317 BT_ERR("%s: Device boot timeout", hdev->name); 2318 return -ETIMEDOUT; 2319 } 2320 2321 rettime = ktime_get(); 2322 delta = ktime_sub(rettime, calltime); 2323 duration = (unsigned long long) ktime_to_ns(delta) >> 10; 2324 2325 bt_dev_info(hdev, "Device booted in %llu usecs", duration); 2326 2327 clear_bit(BTUSB_BOOTLOADER, &data->flags); 2328 2329 /* Once the device is running in operational mode, it needs to apply 2330 * the device configuration (DDC) parameters. 2331 * 2332 * The device can work without DDC parameters, so even if it fails 2333 * to load the file, no need to fail the setup. 2334 */ 2335 btintel_load_ddc_config(hdev, fwname); 2336 2337 /* Set the event mask for Intel specific vendor events. This enables 2338 * a few extra events that are useful during general operation. It 2339 * does not enable any debugging related events. 2340 * 2341 * The device will function correctly without these events enabled 2342 * and thus no need to fail the setup. 2343 */ 2344 btintel_set_event_mask(hdev, false); 2345 2346 return 0; 2347 } 2348 2349 static int btusb_shutdown_intel(struct hci_dev *hdev) 2350 { 2351 struct sk_buff *skb; 2352 long ret; 2353 2354 /* Some platforms have an issue with BT LED when the interface is 2355 * down or BT radio is turned off, which takes 5 seconds to BT LED 2356 * goes off. This command turns off the BT LED immediately. 2357 */ 2358 skb = __hci_cmd_sync(hdev, 0xfc3f, 0, NULL, HCI_INIT_TIMEOUT); 2359 if (IS_ERR(skb)) { 2360 ret = PTR_ERR(skb); 2361 BT_ERR("%s: turning off Intel device LED failed (%ld)", 2362 hdev->name, ret); 2363 return ret; 2364 } 2365 kfree_skb(skb); 2366 2367 return 0; 2368 } 2369 2370 #ifdef CONFIG_PM 2371 /* Configure an out-of-band gpio as wake-up pin, if specified in device tree */ 2372 static int marvell_config_oob_wake(struct hci_dev *hdev) 2373 { 2374 struct sk_buff *skb; 2375 struct btusb_data *data = hci_get_drvdata(hdev); 2376 struct device *dev = &data->udev->dev; 2377 u16 pin, gap, opcode; 2378 int ret; 2379 u8 cmd[5]; 2380 2381 /* Move on if no wakeup pin specified */ 2382 if (of_property_read_u16(dev->of_node, "marvell,wakeup-pin", &pin) || 2383 of_property_read_u16(dev->of_node, "marvell,wakeup-gap-ms", &gap)) 2384 return 0; 2385 2386 /* Vendor specific command to configure a GPIO as wake-up pin */ 2387 opcode = hci_opcode_pack(0x3F, 0x59); 2388 cmd[0] = opcode & 0xFF; 2389 cmd[1] = opcode >> 8; 2390 cmd[2] = 2; /* length of parameters that follow */ 2391 cmd[3] = pin; 2392 cmd[4] = gap; /* time in ms, for which wakeup pin should be asserted */ 2393 2394 skb = bt_skb_alloc(sizeof(cmd), GFP_KERNEL); 2395 if (!skb) { 2396 bt_dev_err(hdev, "%s: No memory\n", __func__); 2397 return -ENOMEM; 2398 } 2399 2400 skb_put_data(skb, cmd, sizeof(cmd)); 2401 hci_skb_pkt_type(skb) = HCI_COMMAND_PKT; 2402 2403 ret = btusb_send_frame(hdev, skb); 2404 if (ret) { 2405 bt_dev_err(hdev, "%s: configuration failed\n", __func__); 2406 kfree_skb(skb); 2407 return ret; 2408 } 2409 2410 return 0; 2411 } 2412 #endif 2413 2414 static int btusb_set_bdaddr_marvell(struct hci_dev *hdev, 2415 const bdaddr_t *bdaddr) 2416 { 2417 struct sk_buff *skb; 2418 u8 buf[8]; 2419 long ret; 2420 2421 buf[0] = 0xfe; 2422 buf[1] = sizeof(bdaddr_t); 2423 memcpy(buf + 2, bdaddr, sizeof(bdaddr_t)); 2424 2425 skb = __hci_cmd_sync(hdev, 0xfc22, sizeof(buf), buf, HCI_INIT_TIMEOUT); 2426 if (IS_ERR(skb)) { 2427 ret = PTR_ERR(skb); 2428 bt_dev_err(hdev, "changing Marvell device address failed (%ld)", 2429 ret); 2430 return ret; 2431 } 2432 kfree_skb(skb); 2433 2434 return 0; 2435 } 2436 2437 static int btusb_set_bdaddr_ath3012(struct hci_dev *hdev, 2438 const bdaddr_t *bdaddr) 2439 { 2440 struct sk_buff *skb; 2441 u8 buf[10]; 2442 long ret; 2443 2444 buf[0] = 0x01; 2445 buf[1] = 0x01; 2446 buf[2] = 0x00; 2447 buf[3] = sizeof(bdaddr_t); 2448 memcpy(buf + 4, bdaddr, sizeof(bdaddr_t)); 2449 2450 skb = __hci_cmd_sync(hdev, 0xfc0b, sizeof(buf), buf, HCI_INIT_TIMEOUT); 2451 if (IS_ERR(skb)) { 2452 ret = PTR_ERR(skb); 2453 bt_dev_err(hdev, "Change address command failed (%ld)", ret); 2454 return ret; 2455 } 2456 kfree_skb(skb); 2457 2458 return 0; 2459 } 2460 2461 #define QCA_DFU_PACKET_LEN 4096 2462 2463 #define QCA_GET_TARGET_VERSION 0x09 2464 #define QCA_CHECK_STATUS 0x05 2465 #define QCA_DFU_DOWNLOAD 0x01 2466 2467 #define QCA_SYSCFG_UPDATED 0x40 2468 #define QCA_PATCH_UPDATED 0x80 2469 #define QCA_DFU_TIMEOUT 3000 2470 2471 struct qca_version { 2472 __le32 rom_version; 2473 __le32 patch_version; 2474 __le32 ram_version; 2475 __le32 ref_clock; 2476 __u8 reserved[4]; 2477 } __packed; 2478 2479 struct qca_rampatch_version { 2480 __le16 rom_version; 2481 __le16 patch_version; 2482 } __packed; 2483 2484 struct qca_device_info { 2485 u32 rom_version; 2486 u8 rampatch_hdr; /* length of header in rampatch */ 2487 u8 nvm_hdr; /* length of header in NVM */ 2488 u8 ver_offset; /* offset of version structure in rampatch */ 2489 }; 2490 2491 static const struct qca_device_info qca_devices_table[] = { 2492 { 0x00000100, 20, 4, 10 }, /* Rome 1.0 */ 2493 { 0x00000101, 20, 4, 10 }, /* Rome 1.1 */ 2494 { 0x00000200, 28, 4, 18 }, /* Rome 2.0 */ 2495 { 0x00000201, 28, 4, 18 }, /* Rome 2.1 */ 2496 { 0x00000300, 28, 4, 18 }, /* Rome 3.0 */ 2497 { 0x00000302, 28, 4, 18 }, /* Rome 3.2 */ 2498 }; 2499 2500 static int btusb_qca_send_vendor_req(struct hci_dev *hdev, u8 request, 2501 void *data, u16 size) 2502 { 2503 struct btusb_data *btdata = hci_get_drvdata(hdev); 2504 struct usb_device *udev = btdata->udev; 2505 int pipe, err; 2506 u8 *buf; 2507 2508 buf = kmalloc(size, GFP_KERNEL); 2509 if (!buf) 2510 return -ENOMEM; 2511 2512 /* Found some of USB hosts have IOT issues with ours so that we should 2513 * not wait until HCI layer is ready. 2514 */ 2515 pipe = usb_rcvctrlpipe(udev, 0); 2516 err = usb_control_msg(udev, pipe, request, USB_TYPE_VENDOR | USB_DIR_IN, 2517 0, 0, buf, size, USB_CTRL_SET_TIMEOUT); 2518 if (err < 0) { 2519 bt_dev_err(hdev, "Failed to access otp area (%d)", err); 2520 goto done; 2521 } 2522 2523 memcpy(data, buf, size); 2524 2525 done: 2526 kfree(buf); 2527 2528 return err; 2529 } 2530 2531 static int btusb_setup_qca_download_fw(struct hci_dev *hdev, 2532 const struct firmware *firmware, 2533 size_t hdr_size) 2534 { 2535 struct btusb_data *btdata = hci_get_drvdata(hdev); 2536 struct usb_device *udev = btdata->udev; 2537 size_t count, size, sent = 0; 2538 int pipe, len, err; 2539 u8 *buf; 2540 2541 buf = kmalloc(QCA_DFU_PACKET_LEN, GFP_KERNEL); 2542 if (!buf) 2543 return -ENOMEM; 2544 2545 count = firmware->size; 2546 2547 size = min_t(size_t, count, hdr_size); 2548 memcpy(buf, firmware->data, size); 2549 2550 /* USB patches should go down to controller through USB path 2551 * because binary format fits to go down through USB channel. 2552 * USB control path is for patching headers and USB bulk is for 2553 * patch body. 2554 */ 2555 pipe = usb_sndctrlpipe(udev, 0); 2556 err = usb_control_msg(udev, pipe, QCA_DFU_DOWNLOAD, USB_TYPE_VENDOR, 2557 0, 0, buf, size, USB_CTRL_SET_TIMEOUT); 2558 if (err < 0) { 2559 bt_dev_err(hdev, "Failed to send headers (%d)", err); 2560 goto done; 2561 } 2562 2563 sent += size; 2564 count -= size; 2565 2566 while (count) { 2567 size = min_t(size_t, count, QCA_DFU_PACKET_LEN); 2568 2569 memcpy(buf, firmware->data + sent, size); 2570 2571 pipe = usb_sndbulkpipe(udev, 0x02); 2572 err = usb_bulk_msg(udev, pipe, buf, size, &len, 2573 QCA_DFU_TIMEOUT); 2574 if (err < 0) { 2575 bt_dev_err(hdev, "Failed to send body at %zd of %zd (%d)", 2576 sent, firmware->size, err); 2577 break; 2578 } 2579 2580 if (size != len) { 2581 bt_dev_err(hdev, "Failed to get bulk buffer"); 2582 err = -EILSEQ; 2583 break; 2584 } 2585 2586 sent += size; 2587 count -= size; 2588 } 2589 2590 done: 2591 kfree(buf); 2592 return err; 2593 } 2594 2595 static int btusb_setup_qca_load_rampatch(struct hci_dev *hdev, 2596 struct qca_version *ver, 2597 const struct qca_device_info *info) 2598 { 2599 struct qca_rampatch_version *rver; 2600 const struct firmware *fw; 2601 u32 ver_rom, ver_patch; 2602 u16 rver_rom, rver_patch; 2603 char fwname[64]; 2604 int err; 2605 2606 ver_rom = le32_to_cpu(ver->rom_version); 2607 ver_patch = le32_to_cpu(ver->patch_version); 2608 2609 snprintf(fwname, sizeof(fwname), "qca/rampatch_usb_%08x.bin", ver_rom); 2610 2611 err = request_firmware(&fw, fwname, &hdev->dev); 2612 if (err) { 2613 bt_dev_err(hdev, "failed to request rampatch file: %s (%d)", 2614 fwname, err); 2615 return err; 2616 } 2617 2618 bt_dev_info(hdev, "using rampatch file: %s", fwname); 2619 2620 rver = (struct qca_rampatch_version *)(fw->data + info->ver_offset); 2621 rver_rom = le16_to_cpu(rver->rom_version); 2622 rver_patch = le16_to_cpu(rver->patch_version); 2623 2624 bt_dev_info(hdev, "QCA: patch rome 0x%x build 0x%x, " 2625 "firmware rome 0x%x build 0x%x", 2626 rver_rom, rver_patch, ver_rom, ver_patch); 2627 2628 if (rver_rom != ver_rom || rver_patch <= ver_patch) { 2629 bt_dev_err(hdev, "rampatch file version did not match with firmware"); 2630 err = -EINVAL; 2631 goto done; 2632 } 2633 2634 err = btusb_setup_qca_download_fw(hdev, fw, info->rampatch_hdr); 2635 2636 done: 2637 release_firmware(fw); 2638 2639 return err; 2640 } 2641 2642 static int btusb_setup_qca_load_nvm(struct hci_dev *hdev, 2643 struct qca_version *ver, 2644 const struct qca_device_info *info) 2645 { 2646 const struct firmware *fw; 2647 char fwname[64]; 2648 int err; 2649 2650 snprintf(fwname, sizeof(fwname), "qca/nvm_usb_%08x.bin", 2651 le32_to_cpu(ver->rom_version)); 2652 2653 err = request_firmware(&fw, fwname, &hdev->dev); 2654 if (err) { 2655 bt_dev_err(hdev, "failed to request NVM file: %s (%d)", 2656 fwname, err); 2657 return err; 2658 } 2659 2660 bt_dev_info(hdev, "using NVM file: %s", fwname); 2661 2662 err = btusb_setup_qca_download_fw(hdev, fw, info->nvm_hdr); 2663 2664 release_firmware(fw); 2665 2666 return err; 2667 } 2668 2669 static int btusb_setup_qca(struct hci_dev *hdev) 2670 { 2671 const struct qca_device_info *info = NULL; 2672 struct qca_version ver; 2673 u32 ver_rom; 2674 u8 status; 2675 int i, err; 2676 2677 err = btusb_qca_send_vendor_req(hdev, QCA_GET_TARGET_VERSION, &ver, 2678 sizeof(ver)); 2679 if (err < 0) 2680 return err; 2681 2682 ver_rom = le32_to_cpu(ver.rom_version); 2683 for (i = 0; i < ARRAY_SIZE(qca_devices_table); i++) { 2684 if (ver_rom == qca_devices_table[i].rom_version) 2685 info = &qca_devices_table[i]; 2686 } 2687 if (!info) { 2688 bt_dev_err(hdev, "don't support firmware rome 0x%x", ver_rom); 2689 return -ENODEV; 2690 } 2691 2692 err = btusb_qca_send_vendor_req(hdev, QCA_CHECK_STATUS, &status, 2693 sizeof(status)); 2694 if (err < 0) 2695 return err; 2696 2697 if (!(status & QCA_PATCH_UPDATED)) { 2698 err = btusb_setup_qca_load_rampatch(hdev, &ver, info); 2699 if (err < 0) 2700 return err; 2701 } 2702 2703 if (!(status & QCA_SYSCFG_UPDATED)) { 2704 err = btusb_setup_qca_load_nvm(hdev, &ver, info); 2705 if (err < 0) 2706 return err; 2707 } 2708 2709 return 0; 2710 } 2711 2712 #ifdef CONFIG_BT_HCIBTUSB_BCM 2713 static inline int __set_diag_interface(struct hci_dev *hdev) 2714 { 2715 struct btusb_data *data = hci_get_drvdata(hdev); 2716 struct usb_interface *intf = data->diag; 2717 int i; 2718 2719 if (!data->diag) 2720 return -ENODEV; 2721 2722 data->diag_tx_ep = NULL; 2723 data->diag_rx_ep = NULL; 2724 2725 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) { 2726 struct usb_endpoint_descriptor *ep_desc; 2727 2728 ep_desc = &intf->cur_altsetting->endpoint[i].desc; 2729 2730 if (!data->diag_tx_ep && usb_endpoint_is_bulk_out(ep_desc)) { 2731 data->diag_tx_ep = ep_desc; 2732 continue; 2733 } 2734 2735 if (!data->diag_rx_ep && usb_endpoint_is_bulk_in(ep_desc)) { 2736 data->diag_rx_ep = ep_desc; 2737 continue; 2738 } 2739 } 2740 2741 if (!data->diag_tx_ep || !data->diag_rx_ep) { 2742 bt_dev_err(hdev, "invalid diagnostic descriptors"); 2743 return -ENODEV; 2744 } 2745 2746 return 0; 2747 } 2748 2749 static struct urb *alloc_diag_urb(struct hci_dev *hdev, bool enable) 2750 { 2751 struct btusb_data *data = hci_get_drvdata(hdev); 2752 struct sk_buff *skb; 2753 struct urb *urb; 2754 unsigned int pipe; 2755 2756 if (!data->diag_tx_ep) 2757 return ERR_PTR(-ENODEV); 2758 2759 urb = usb_alloc_urb(0, GFP_KERNEL); 2760 if (!urb) 2761 return ERR_PTR(-ENOMEM); 2762 2763 skb = bt_skb_alloc(2, GFP_KERNEL); 2764 if (!skb) { 2765 usb_free_urb(urb); 2766 return ERR_PTR(-ENOMEM); 2767 } 2768 2769 skb_put_u8(skb, 0xf0); 2770 skb_put_u8(skb, enable); 2771 2772 pipe = usb_sndbulkpipe(data->udev, data->diag_tx_ep->bEndpointAddress); 2773 2774 usb_fill_bulk_urb(urb, data->udev, pipe, 2775 skb->data, skb->len, btusb_tx_complete, skb); 2776 2777 skb->dev = (void *)hdev; 2778 2779 return urb; 2780 } 2781 2782 static int btusb_bcm_set_diag(struct hci_dev *hdev, bool enable) 2783 { 2784 struct btusb_data *data = hci_get_drvdata(hdev); 2785 struct urb *urb; 2786 2787 if (!data->diag) 2788 return -ENODEV; 2789 2790 if (!test_bit(HCI_RUNNING, &hdev->flags)) 2791 return -ENETDOWN; 2792 2793 urb = alloc_diag_urb(hdev, enable); 2794 if (IS_ERR(urb)) 2795 return PTR_ERR(urb); 2796 2797 return submit_or_queue_tx_urb(hdev, urb); 2798 } 2799 #endif 2800 2801 #ifdef CONFIG_PM 2802 static irqreturn_t btusb_oob_wake_handler(int irq, void *priv) 2803 { 2804 struct btusb_data *data = priv; 2805 2806 pm_wakeup_event(&data->udev->dev, 0); 2807 pm_system_wakeup(); 2808 2809 /* Disable only if not already disabled (keep it balanced) */ 2810 if (test_and_clear_bit(BTUSB_OOB_WAKE_ENABLED, &data->flags)) { 2811 disable_irq_nosync(irq); 2812 disable_irq_wake(irq); 2813 } 2814 return IRQ_HANDLED; 2815 } 2816 2817 static const struct of_device_id btusb_match_table[] = { 2818 { .compatible = "usb1286,204e" }, 2819 { } 2820 }; 2821 MODULE_DEVICE_TABLE(of, btusb_match_table); 2822 2823 /* Use an oob wakeup pin? */ 2824 static int btusb_config_oob_wake(struct hci_dev *hdev) 2825 { 2826 struct btusb_data *data = hci_get_drvdata(hdev); 2827 struct device *dev = &data->udev->dev; 2828 int irq, ret; 2829 2830 clear_bit(BTUSB_OOB_WAKE_ENABLED, &data->flags); 2831 2832 if (!of_match_device(btusb_match_table, dev)) 2833 return 0; 2834 2835 /* Move on if no IRQ specified */ 2836 irq = of_irq_get_byname(dev->of_node, "wakeup"); 2837 if (irq <= 0) { 2838 bt_dev_dbg(hdev, "%s: no OOB Wakeup IRQ in DT", __func__); 2839 return 0; 2840 } 2841 2842 ret = devm_request_irq(&hdev->dev, irq, btusb_oob_wake_handler, 2843 0, "OOB Wake-on-BT", data); 2844 if (ret) { 2845 bt_dev_err(hdev, "%s: IRQ request failed", __func__); 2846 return ret; 2847 } 2848 2849 ret = device_init_wakeup(dev, true); 2850 if (ret) { 2851 bt_dev_err(hdev, "%s: failed to init_wakeup", __func__); 2852 return ret; 2853 } 2854 2855 data->oob_wake_irq = irq; 2856 disable_irq(irq); 2857 bt_dev_info(hdev, "OOB Wake-on-BT configured at IRQ %u", irq); 2858 return 0; 2859 } 2860 #endif 2861 2862 static void btusb_check_needs_reset_resume(struct usb_interface *intf) 2863 { 2864 if (dmi_check_system(btusb_needs_reset_resume_table)) 2865 interface_to_usbdev(intf)->quirks |= USB_QUIRK_RESET_RESUME; 2866 } 2867 2868 static int btusb_probe(struct usb_interface *intf, 2869 const struct usb_device_id *id) 2870 { 2871 struct usb_endpoint_descriptor *ep_desc; 2872 struct btusb_data *data; 2873 struct hci_dev *hdev; 2874 unsigned ifnum_base; 2875 int i, err; 2876 2877 BT_DBG("intf %p id %p", intf, id); 2878 2879 /* interface numbers are hardcoded in the spec */ 2880 if (intf->cur_altsetting->desc.bInterfaceNumber != 0) { 2881 if (!(id->driver_info & BTUSB_IFNUM_2)) 2882 return -ENODEV; 2883 if (intf->cur_altsetting->desc.bInterfaceNumber != 2) 2884 return -ENODEV; 2885 } 2886 2887 ifnum_base = intf->cur_altsetting->desc.bInterfaceNumber; 2888 2889 if (!id->driver_info) { 2890 const struct usb_device_id *match; 2891 2892 match = usb_match_id(intf, blacklist_table); 2893 if (match) 2894 id = match; 2895 } 2896 2897 if (id->driver_info == BTUSB_IGNORE) 2898 return -ENODEV; 2899 2900 if (id->driver_info & BTUSB_ATH3012) { 2901 struct usb_device *udev = interface_to_usbdev(intf); 2902 2903 /* Old firmware would otherwise let ath3k driver load 2904 * patch and sysconfig files 2905 */ 2906 if (le16_to_cpu(udev->descriptor.bcdDevice) <= 0x0001) 2907 return -ENODEV; 2908 } 2909 2910 data = devm_kzalloc(&intf->dev, sizeof(*data), GFP_KERNEL); 2911 if (!data) 2912 return -ENOMEM; 2913 2914 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) { 2915 ep_desc = &intf->cur_altsetting->endpoint[i].desc; 2916 2917 if (!data->intr_ep && usb_endpoint_is_int_in(ep_desc)) { 2918 data->intr_ep = ep_desc; 2919 continue; 2920 } 2921 2922 if (!data->bulk_tx_ep && usb_endpoint_is_bulk_out(ep_desc)) { 2923 data->bulk_tx_ep = ep_desc; 2924 continue; 2925 } 2926 2927 if (!data->bulk_rx_ep && usb_endpoint_is_bulk_in(ep_desc)) { 2928 data->bulk_rx_ep = ep_desc; 2929 continue; 2930 } 2931 } 2932 2933 if (!data->intr_ep || !data->bulk_tx_ep || !data->bulk_rx_ep) 2934 return -ENODEV; 2935 2936 if (id->driver_info & BTUSB_AMP) { 2937 data->cmdreq_type = USB_TYPE_CLASS | 0x01; 2938 data->cmdreq = 0x2b; 2939 } else { 2940 data->cmdreq_type = USB_TYPE_CLASS; 2941 data->cmdreq = 0x00; 2942 } 2943 2944 data->udev = interface_to_usbdev(intf); 2945 data->intf = intf; 2946 2947 INIT_WORK(&data->work, btusb_work); 2948 INIT_WORK(&data->waker, btusb_waker); 2949 init_usb_anchor(&data->deferred); 2950 init_usb_anchor(&data->tx_anchor); 2951 spin_lock_init(&data->txlock); 2952 2953 init_usb_anchor(&data->intr_anchor); 2954 init_usb_anchor(&data->bulk_anchor); 2955 init_usb_anchor(&data->isoc_anchor); 2956 init_usb_anchor(&data->diag_anchor); 2957 spin_lock_init(&data->rxlock); 2958 2959 if (id->driver_info & BTUSB_INTEL_NEW) { 2960 data->recv_event = btusb_recv_event_intel; 2961 data->recv_bulk = btusb_recv_bulk_intel; 2962 set_bit(BTUSB_BOOTLOADER, &data->flags); 2963 } else { 2964 data->recv_event = hci_recv_frame; 2965 data->recv_bulk = btusb_recv_bulk; 2966 } 2967 2968 hdev = hci_alloc_dev(); 2969 if (!hdev) 2970 return -ENOMEM; 2971 2972 hdev->bus = HCI_USB; 2973 hci_set_drvdata(hdev, data); 2974 2975 if (id->driver_info & BTUSB_AMP) 2976 hdev->dev_type = HCI_AMP; 2977 else 2978 hdev->dev_type = HCI_PRIMARY; 2979 2980 data->hdev = hdev; 2981 2982 SET_HCIDEV_DEV(hdev, &intf->dev); 2983 2984 hdev->open = btusb_open; 2985 hdev->close = btusb_close; 2986 hdev->flush = btusb_flush; 2987 hdev->send = btusb_send_frame; 2988 hdev->notify = btusb_notify; 2989 2990 #ifdef CONFIG_PM 2991 err = btusb_config_oob_wake(hdev); 2992 if (err) 2993 goto out_free_dev; 2994 2995 /* Marvell devices may need a specific chip configuration */ 2996 if (id->driver_info & BTUSB_MARVELL && data->oob_wake_irq) { 2997 err = marvell_config_oob_wake(hdev); 2998 if (err) 2999 goto out_free_dev; 3000 } 3001 #endif 3002 if (id->driver_info & BTUSB_CW6622) 3003 set_bit(HCI_QUIRK_BROKEN_STORED_LINK_KEY, &hdev->quirks); 3004 3005 if (id->driver_info & BTUSB_BCM2045) 3006 set_bit(HCI_QUIRK_BROKEN_STORED_LINK_KEY, &hdev->quirks); 3007 3008 if (id->driver_info & BTUSB_BCM92035) 3009 hdev->setup = btusb_setup_bcm92035; 3010 3011 #ifdef CONFIG_BT_HCIBTUSB_BCM 3012 if (id->driver_info & BTUSB_BCM_PATCHRAM) { 3013 hdev->manufacturer = 15; 3014 hdev->setup = btbcm_setup_patchram; 3015 hdev->set_diag = btusb_bcm_set_diag; 3016 hdev->set_bdaddr = btbcm_set_bdaddr; 3017 3018 /* Broadcom LM_DIAG Interface numbers are hardcoded */ 3019 data->diag = usb_ifnum_to_if(data->udev, ifnum_base + 2); 3020 } 3021 3022 if (id->driver_info & BTUSB_BCM_APPLE) { 3023 hdev->manufacturer = 15; 3024 hdev->setup = btbcm_setup_apple; 3025 hdev->set_diag = btusb_bcm_set_diag; 3026 3027 /* Broadcom LM_DIAG Interface numbers are hardcoded */ 3028 data->diag = usb_ifnum_to_if(data->udev, ifnum_base + 2); 3029 } 3030 #endif 3031 3032 if (id->driver_info & BTUSB_INTEL) { 3033 hdev->manufacturer = 2; 3034 hdev->setup = btusb_setup_intel; 3035 hdev->shutdown = btusb_shutdown_intel; 3036 hdev->set_diag = btintel_set_diag_mfg; 3037 hdev->set_bdaddr = btintel_set_bdaddr; 3038 set_bit(HCI_QUIRK_STRICT_DUPLICATE_FILTER, &hdev->quirks); 3039 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks); 3040 set_bit(HCI_QUIRK_NON_PERSISTENT_DIAG, &hdev->quirks); 3041 } 3042 3043 if (id->driver_info & BTUSB_INTEL_NEW) { 3044 hdev->manufacturer = 2; 3045 hdev->send = btusb_send_frame_intel; 3046 hdev->setup = btusb_setup_intel_new; 3047 hdev->hw_error = btintel_hw_error; 3048 hdev->set_diag = btintel_set_diag; 3049 hdev->set_bdaddr = btintel_set_bdaddr; 3050 set_bit(HCI_QUIRK_STRICT_DUPLICATE_FILTER, &hdev->quirks); 3051 set_bit(HCI_QUIRK_NON_PERSISTENT_DIAG, &hdev->quirks); 3052 } 3053 3054 if (id->driver_info & BTUSB_MARVELL) 3055 hdev->set_bdaddr = btusb_set_bdaddr_marvell; 3056 3057 if (id->driver_info & BTUSB_SWAVE) { 3058 set_bit(HCI_QUIRK_FIXUP_INQUIRY_MODE, &hdev->quirks); 3059 set_bit(HCI_QUIRK_BROKEN_LOCAL_COMMANDS, &hdev->quirks); 3060 } 3061 3062 if (id->driver_info & BTUSB_INTEL_BOOT) { 3063 hdev->manufacturer = 2; 3064 set_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks); 3065 } 3066 3067 if (id->driver_info & BTUSB_ATH3012) { 3068 hdev->set_bdaddr = btusb_set_bdaddr_ath3012; 3069 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks); 3070 set_bit(HCI_QUIRK_STRICT_DUPLICATE_FILTER, &hdev->quirks); 3071 } 3072 3073 if (id->driver_info & BTUSB_QCA_ROME) { 3074 data->setup_on_usb = btusb_setup_qca; 3075 hdev->set_bdaddr = btusb_set_bdaddr_ath3012; 3076 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks); 3077 btusb_check_needs_reset_resume(intf); 3078 } 3079 3080 #ifdef CONFIG_BT_HCIBTUSB_RTL 3081 if (id->driver_info & BTUSB_REALTEK) { 3082 hdev->setup = btrtl_setup_realtek; 3083 3084 /* Realtek devices lose their updated firmware over suspend, 3085 * but the USB hub doesn't notice any status change. 3086 * Explicitly request a device reset on resume. 3087 */ 3088 interface_to_usbdev(intf)->quirks |= USB_QUIRK_RESET_RESUME; 3089 } 3090 #endif 3091 3092 if (id->driver_info & BTUSB_AMP) { 3093 /* AMP controllers do not support SCO packets */ 3094 data->isoc = NULL; 3095 } else { 3096 /* Interface orders are hardcoded in the specification */ 3097 data->isoc = usb_ifnum_to_if(data->udev, ifnum_base + 1); 3098 data->isoc_ifnum = ifnum_base + 1; 3099 } 3100 3101 if (!reset) 3102 set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks); 3103 3104 if (force_scofix || id->driver_info & BTUSB_WRONG_SCO_MTU) { 3105 if (!disable_scofix) 3106 set_bit(HCI_QUIRK_FIXUP_BUFFER_SIZE, &hdev->quirks); 3107 } 3108 3109 if (id->driver_info & BTUSB_BROKEN_ISOC) 3110 data->isoc = NULL; 3111 3112 if (id->driver_info & BTUSB_DIGIANSWER) { 3113 data->cmdreq_type = USB_TYPE_VENDOR; 3114 set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks); 3115 } 3116 3117 if (id->driver_info & BTUSB_CSR) { 3118 struct usb_device *udev = data->udev; 3119 u16 bcdDevice = le16_to_cpu(udev->descriptor.bcdDevice); 3120 3121 /* Old firmware would otherwise execute USB reset */ 3122 if (bcdDevice < 0x117) 3123 set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks); 3124 3125 /* Fake CSR devices with broken commands */ 3126 if (bcdDevice <= 0x100 || bcdDevice == 0x134) 3127 hdev->setup = btusb_setup_csr; 3128 3129 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks); 3130 } 3131 3132 if (id->driver_info & BTUSB_SNIFFER) { 3133 struct usb_device *udev = data->udev; 3134 3135 /* New sniffer firmware has crippled HCI interface */ 3136 if (le16_to_cpu(udev->descriptor.bcdDevice) > 0x997) 3137 set_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks); 3138 } 3139 3140 if (id->driver_info & BTUSB_INTEL_BOOT) { 3141 /* A bug in the bootloader causes that interrupt interface is 3142 * only enabled after receiving SetInterface(0, AltSetting=0). 3143 */ 3144 err = usb_set_interface(data->udev, 0, 0); 3145 if (err < 0) { 3146 BT_ERR("failed to set interface 0, alt 0 %d", err); 3147 goto out_free_dev; 3148 } 3149 } 3150 3151 if (data->isoc) { 3152 err = usb_driver_claim_interface(&btusb_driver, 3153 data->isoc, data); 3154 if (err < 0) 3155 goto out_free_dev; 3156 } 3157 3158 #ifdef CONFIG_BT_HCIBTUSB_BCM 3159 if (data->diag) { 3160 if (!usb_driver_claim_interface(&btusb_driver, 3161 data->diag, data)) 3162 __set_diag_interface(hdev); 3163 else 3164 data->diag = NULL; 3165 } 3166 #endif 3167 3168 if (enable_autosuspend) 3169 usb_enable_autosuspend(data->udev); 3170 3171 err = hci_register_dev(hdev); 3172 if (err < 0) 3173 goto out_free_dev; 3174 3175 usb_set_intfdata(intf, data); 3176 3177 return 0; 3178 3179 out_free_dev: 3180 hci_free_dev(hdev); 3181 return err; 3182 } 3183 3184 static void btusb_disconnect(struct usb_interface *intf) 3185 { 3186 struct btusb_data *data = usb_get_intfdata(intf); 3187 struct hci_dev *hdev; 3188 3189 BT_DBG("intf %p", intf); 3190 3191 if (!data) 3192 return; 3193 3194 hdev = data->hdev; 3195 usb_set_intfdata(data->intf, NULL); 3196 3197 if (data->isoc) 3198 usb_set_intfdata(data->isoc, NULL); 3199 3200 if (data->diag) 3201 usb_set_intfdata(data->diag, NULL); 3202 3203 hci_unregister_dev(hdev); 3204 3205 if (intf == data->intf) { 3206 if (data->isoc) 3207 usb_driver_release_interface(&btusb_driver, data->isoc); 3208 if (data->diag) 3209 usb_driver_release_interface(&btusb_driver, data->diag); 3210 } else if (intf == data->isoc) { 3211 if (data->diag) 3212 usb_driver_release_interface(&btusb_driver, data->diag); 3213 usb_driver_release_interface(&btusb_driver, data->intf); 3214 } else if (intf == data->diag) { 3215 usb_driver_release_interface(&btusb_driver, data->intf); 3216 if (data->isoc) 3217 usb_driver_release_interface(&btusb_driver, data->isoc); 3218 } 3219 3220 if (data->oob_wake_irq) 3221 device_init_wakeup(&data->udev->dev, false); 3222 3223 hci_free_dev(hdev); 3224 } 3225 3226 #ifdef CONFIG_PM 3227 static int btusb_suspend(struct usb_interface *intf, pm_message_t message) 3228 { 3229 struct btusb_data *data = usb_get_intfdata(intf); 3230 3231 BT_DBG("intf %p", intf); 3232 3233 if (data->suspend_count++) 3234 return 0; 3235 3236 spin_lock_irq(&data->txlock); 3237 if (!(PMSG_IS_AUTO(message) && data->tx_in_flight)) { 3238 set_bit(BTUSB_SUSPENDING, &data->flags); 3239 spin_unlock_irq(&data->txlock); 3240 } else { 3241 spin_unlock_irq(&data->txlock); 3242 data->suspend_count--; 3243 return -EBUSY; 3244 } 3245 3246 cancel_work_sync(&data->work); 3247 3248 btusb_stop_traffic(data); 3249 usb_kill_anchored_urbs(&data->tx_anchor); 3250 3251 if (data->oob_wake_irq && device_may_wakeup(&data->udev->dev)) { 3252 set_bit(BTUSB_OOB_WAKE_ENABLED, &data->flags); 3253 enable_irq_wake(data->oob_wake_irq); 3254 enable_irq(data->oob_wake_irq); 3255 } 3256 3257 return 0; 3258 } 3259 3260 static void play_deferred(struct btusb_data *data) 3261 { 3262 struct urb *urb; 3263 int err; 3264 3265 while ((urb = usb_get_from_anchor(&data->deferred))) { 3266 usb_anchor_urb(urb, &data->tx_anchor); 3267 3268 err = usb_submit_urb(urb, GFP_ATOMIC); 3269 if (err < 0) { 3270 if (err != -EPERM && err != -ENODEV) 3271 BT_ERR("%s urb %p submission failed (%d)", 3272 data->hdev->name, urb, -err); 3273 kfree(urb->setup_packet); 3274 usb_unanchor_urb(urb); 3275 usb_free_urb(urb); 3276 break; 3277 } 3278 3279 data->tx_in_flight++; 3280 usb_free_urb(urb); 3281 } 3282 3283 /* Cleanup the rest deferred urbs. */ 3284 while ((urb = usb_get_from_anchor(&data->deferred))) { 3285 kfree(urb->setup_packet); 3286 usb_free_urb(urb); 3287 } 3288 } 3289 3290 static int btusb_resume(struct usb_interface *intf) 3291 { 3292 struct btusb_data *data = usb_get_intfdata(intf); 3293 struct hci_dev *hdev = data->hdev; 3294 int err = 0; 3295 3296 BT_DBG("intf %p", intf); 3297 3298 if (--data->suspend_count) 3299 return 0; 3300 3301 /* Disable only if not already disabled (keep it balanced) */ 3302 if (test_and_clear_bit(BTUSB_OOB_WAKE_ENABLED, &data->flags)) { 3303 disable_irq(data->oob_wake_irq); 3304 disable_irq_wake(data->oob_wake_irq); 3305 } 3306 3307 if (!test_bit(HCI_RUNNING, &hdev->flags)) 3308 goto done; 3309 3310 if (test_bit(BTUSB_INTR_RUNNING, &data->flags)) { 3311 err = btusb_submit_intr_urb(hdev, GFP_NOIO); 3312 if (err < 0) { 3313 clear_bit(BTUSB_INTR_RUNNING, &data->flags); 3314 goto failed; 3315 } 3316 } 3317 3318 if (test_bit(BTUSB_BULK_RUNNING, &data->flags)) { 3319 err = btusb_submit_bulk_urb(hdev, GFP_NOIO); 3320 if (err < 0) { 3321 clear_bit(BTUSB_BULK_RUNNING, &data->flags); 3322 goto failed; 3323 } 3324 3325 btusb_submit_bulk_urb(hdev, GFP_NOIO); 3326 } 3327 3328 if (test_bit(BTUSB_ISOC_RUNNING, &data->flags)) { 3329 if (btusb_submit_isoc_urb(hdev, GFP_NOIO) < 0) 3330 clear_bit(BTUSB_ISOC_RUNNING, &data->flags); 3331 else 3332 btusb_submit_isoc_urb(hdev, GFP_NOIO); 3333 } 3334 3335 spin_lock_irq(&data->txlock); 3336 play_deferred(data); 3337 clear_bit(BTUSB_SUSPENDING, &data->flags); 3338 spin_unlock_irq(&data->txlock); 3339 schedule_work(&data->work); 3340 3341 return 0; 3342 3343 failed: 3344 usb_scuttle_anchored_urbs(&data->deferred); 3345 done: 3346 spin_lock_irq(&data->txlock); 3347 clear_bit(BTUSB_SUSPENDING, &data->flags); 3348 spin_unlock_irq(&data->txlock); 3349 3350 return err; 3351 } 3352 #endif 3353 3354 static struct usb_driver btusb_driver = { 3355 .name = "btusb", 3356 .probe = btusb_probe, 3357 .disconnect = btusb_disconnect, 3358 #ifdef CONFIG_PM 3359 .suspend = btusb_suspend, 3360 .resume = btusb_resume, 3361 #endif 3362 .id_table = btusb_table, 3363 .supports_autosuspend = 1, 3364 .disable_hub_initiated_lpm = 1, 3365 }; 3366 3367 module_usb_driver(btusb_driver); 3368 3369 module_param(disable_scofix, bool, 0644); 3370 MODULE_PARM_DESC(disable_scofix, "Disable fixup of wrong SCO buffer size"); 3371 3372 module_param(force_scofix, bool, 0644); 3373 MODULE_PARM_DESC(force_scofix, "Force fixup of wrong SCO buffers size"); 3374 3375 module_param(enable_autosuspend, bool, 0644); 3376 MODULE_PARM_DESC(enable_autosuspend, "Enable USB autosuspend by default"); 3377 3378 module_param(reset, bool, 0644); 3379 MODULE_PARM_DESC(reset, "Send HCI reset command on initialization"); 3380 3381 MODULE_AUTHOR("Marcel Holtmann <marcel@holtmann.org>"); 3382 MODULE_DESCRIPTION("Generic Bluetooth USB driver ver " VERSION); 3383 MODULE_VERSION(VERSION); 3384 MODULE_LICENSE("GPL"); 3385