1 /* 2 * 3 * Generic Bluetooth USB driver 4 * 5 * Copyright (C) 2005-2008 Marcel Holtmann <marcel@holtmann.org> 6 * 7 * 8 * This program is free software; you can redistribute it and/or modify 9 * it under the terms of the GNU General Public License as published by 10 * the Free Software Foundation; either version 2 of the License, or 11 * (at your option) any later version. 12 * 13 * This program is distributed in the hope that it will be useful, 14 * but WITHOUT ANY WARRANTY; without even the implied warranty of 15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 16 * GNU General Public License for more details. 17 * 18 * You should have received a copy of the GNU General Public License 19 * along with this program; if not, write to the Free Software 20 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA 21 * 22 */ 23 24 #include <linux/dmi.h> 25 #include <linux/module.h> 26 #include <linux/usb.h> 27 #include <linux/usb/quirks.h> 28 #include <linux/firmware.h> 29 #include <linux/of_device.h> 30 #include <linux/of_irq.h> 31 #include <linux/suspend.h> 32 #include <asm/unaligned.h> 33 34 #include <net/bluetooth/bluetooth.h> 35 #include <net/bluetooth/hci_core.h> 36 37 #include "btintel.h" 38 #include "btbcm.h" 39 #include "btrtl.h" 40 41 #define VERSION "0.8" 42 43 static bool disable_scofix; 44 static bool force_scofix; 45 static bool enable_autosuspend = IS_ENABLED(CONFIG_BT_HCIBTUSB_AUTOSUSPEND); 46 47 static bool reset = true; 48 49 static struct usb_driver btusb_driver; 50 51 #define BTUSB_IGNORE 0x01 52 #define BTUSB_DIGIANSWER 0x02 53 #define BTUSB_CSR 0x04 54 #define BTUSB_SNIFFER 0x08 55 #define BTUSB_BCM92035 0x10 56 #define BTUSB_BROKEN_ISOC 0x20 57 #define BTUSB_WRONG_SCO_MTU 0x40 58 #define BTUSB_ATH3012 0x80 59 #define BTUSB_INTEL 0x100 60 #define BTUSB_INTEL_BOOT 0x200 61 #define BTUSB_BCM_PATCHRAM 0x400 62 #define BTUSB_MARVELL 0x800 63 #define BTUSB_SWAVE 0x1000 64 #define BTUSB_INTEL_NEW 0x2000 65 #define BTUSB_AMP 0x4000 66 #define BTUSB_QCA_ROME 0x8000 67 #define BTUSB_BCM_APPLE 0x10000 68 #define BTUSB_REALTEK 0x20000 69 #define BTUSB_BCM2045 0x40000 70 #define BTUSB_IFNUM_2 0x80000 71 #define BTUSB_CW6622 0x100000 72 73 static const struct usb_device_id btusb_table[] = { 74 /* Generic Bluetooth USB device */ 75 { USB_DEVICE_INFO(0xe0, 0x01, 0x01) }, 76 77 /* Generic Bluetooth AMP device */ 78 { USB_DEVICE_INFO(0xe0, 0x01, 0x04), .driver_info = BTUSB_AMP }, 79 80 /* Generic Bluetooth USB interface */ 81 { USB_INTERFACE_INFO(0xe0, 0x01, 0x01) }, 82 83 /* Apple-specific (Broadcom) devices */ 84 { USB_VENDOR_AND_INTERFACE_INFO(0x05ac, 0xff, 0x01, 0x01), 85 .driver_info = BTUSB_BCM_APPLE | BTUSB_IFNUM_2 }, 86 87 /* MediaTek MT76x0E */ 88 { USB_DEVICE(0x0e8d, 0x763f) }, 89 90 /* Broadcom SoftSailing reporting vendor specific */ 91 { USB_DEVICE(0x0a5c, 0x21e1) }, 92 93 /* Apple MacBookPro 7,1 */ 94 { USB_DEVICE(0x05ac, 0x8213) }, 95 96 /* Apple iMac11,1 */ 97 { USB_DEVICE(0x05ac, 0x8215) }, 98 99 /* Apple MacBookPro6,2 */ 100 { USB_DEVICE(0x05ac, 0x8218) }, 101 102 /* Apple MacBookAir3,1, MacBookAir3,2 */ 103 { USB_DEVICE(0x05ac, 0x821b) }, 104 105 /* Apple MacBookAir4,1 */ 106 { USB_DEVICE(0x05ac, 0x821f) }, 107 108 /* Apple MacBookPro8,2 */ 109 { USB_DEVICE(0x05ac, 0x821a) }, 110 111 /* Apple MacMini5,1 */ 112 { USB_DEVICE(0x05ac, 0x8281) }, 113 114 /* AVM BlueFRITZ! USB v2.0 */ 115 { USB_DEVICE(0x057c, 0x3800), .driver_info = BTUSB_SWAVE }, 116 117 /* Bluetooth Ultraport Module from IBM */ 118 { USB_DEVICE(0x04bf, 0x030a) }, 119 120 /* ALPS Modules with non-standard id */ 121 { USB_DEVICE(0x044e, 0x3001) }, 122 { USB_DEVICE(0x044e, 0x3002) }, 123 124 /* Ericsson with non-standard id */ 125 { USB_DEVICE(0x0bdb, 0x1002) }, 126 127 /* Canyon CN-BTU1 with HID interfaces */ 128 { USB_DEVICE(0x0c10, 0x0000) }, 129 130 /* Broadcom BCM20702A0 */ 131 { USB_DEVICE(0x413c, 0x8197) }, 132 133 /* Broadcom BCM20702B0 (Dynex/Insignia) */ 134 { USB_DEVICE(0x19ff, 0x0239), .driver_info = BTUSB_BCM_PATCHRAM }, 135 136 /* Broadcom BCM43142A0 (Foxconn/Lenovo) */ 137 { USB_VENDOR_AND_INTERFACE_INFO(0x105b, 0xff, 0x01, 0x01), 138 .driver_info = BTUSB_BCM_PATCHRAM }, 139 140 /* Broadcom BCM920703 (HTC Vive) */ 141 { USB_VENDOR_AND_INTERFACE_INFO(0x0bb4, 0xff, 0x01, 0x01), 142 .driver_info = BTUSB_BCM_PATCHRAM }, 143 144 /* Foxconn - Hon Hai */ 145 { USB_VENDOR_AND_INTERFACE_INFO(0x0489, 0xff, 0x01, 0x01), 146 .driver_info = BTUSB_BCM_PATCHRAM }, 147 148 /* Lite-On Technology - Broadcom based */ 149 { USB_VENDOR_AND_INTERFACE_INFO(0x04ca, 0xff, 0x01, 0x01), 150 .driver_info = BTUSB_BCM_PATCHRAM }, 151 152 /* Broadcom devices with vendor specific id */ 153 { USB_VENDOR_AND_INTERFACE_INFO(0x0a5c, 0xff, 0x01, 0x01), 154 .driver_info = BTUSB_BCM_PATCHRAM }, 155 156 /* ASUSTek Computer - Broadcom based */ 157 { USB_VENDOR_AND_INTERFACE_INFO(0x0b05, 0xff, 0x01, 0x01), 158 .driver_info = BTUSB_BCM_PATCHRAM }, 159 160 /* Belkin F8065bf - Broadcom based */ 161 { USB_VENDOR_AND_INTERFACE_INFO(0x050d, 0xff, 0x01, 0x01), 162 .driver_info = BTUSB_BCM_PATCHRAM }, 163 164 /* IMC Networks - Broadcom based */ 165 { USB_VENDOR_AND_INTERFACE_INFO(0x13d3, 0xff, 0x01, 0x01), 166 .driver_info = BTUSB_BCM_PATCHRAM }, 167 168 /* Dell Computer - Broadcom based */ 169 { USB_VENDOR_AND_INTERFACE_INFO(0x413c, 0xff, 0x01, 0x01), 170 .driver_info = BTUSB_BCM_PATCHRAM }, 171 172 /* Toshiba Corp - Broadcom based */ 173 { USB_VENDOR_AND_INTERFACE_INFO(0x0930, 0xff, 0x01, 0x01), 174 .driver_info = BTUSB_BCM_PATCHRAM }, 175 176 /* Intel Bluetooth USB Bootloader (RAM module) */ 177 { USB_DEVICE(0x8087, 0x0a5a), 178 .driver_info = BTUSB_INTEL_BOOT | BTUSB_BROKEN_ISOC }, 179 180 { } /* Terminating entry */ 181 }; 182 183 MODULE_DEVICE_TABLE(usb, btusb_table); 184 185 static const struct usb_device_id blacklist_table[] = { 186 /* CSR BlueCore devices */ 187 { USB_DEVICE(0x0a12, 0x0001), .driver_info = BTUSB_CSR }, 188 189 /* Broadcom BCM2033 without firmware */ 190 { USB_DEVICE(0x0a5c, 0x2033), .driver_info = BTUSB_IGNORE }, 191 192 /* Broadcom BCM2045 devices */ 193 { USB_DEVICE(0x0a5c, 0x2045), .driver_info = BTUSB_BCM2045 }, 194 195 /* Atheros 3011 with sflash firmware */ 196 { USB_DEVICE(0x0489, 0xe027), .driver_info = BTUSB_IGNORE }, 197 { USB_DEVICE(0x0489, 0xe03d), .driver_info = BTUSB_IGNORE }, 198 { USB_DEVICE(0x04f2, 0xaff1), .driver_info = BTUSB_IGNORE }, 199 { USB_DEVICE(0x0930, 0x0215), .driver_info = BTUSB_IGNORE }, 200 { USB_DEVICE(0x0cf3, 0x3002), .driver_info = BTUSB_IGNORE }, 201 { USB_DEVICE(0x0cf3, 0xe019), .driver_info = BTUSB_IGNORE }, 202 { USB_DEVICE(0x13d3, 0x3304), .driver_info = BTUSB_IGNORE }, 203 204 /* Atheros AR9285 Malbec with sflash firmware */ 205 { USB_DEVICE(0x03f0, 0x311d), .driver_info = BTUSB_IGNORE }, 206 207 /* Atheros 3012 with sflash firmware */ 208 { USB_DEVICE(0x0489, 0xe04d), .driver_info = BTUSB_ATH3012 }, 209 { USB_DEVICE(0x0489, 0xe04e), .driver_info = BTUSB_ATH3012 }, 210 { USB_DEVICE(0x0489, 0xe056), .driver_info = BTUSB_ATH3012 }, 211 { USB_DEVICE(0x0489, 0xe057), .driver_info = BTUSB_ATH3012 }, 212 { USB_DEVICE(0x0489, 0xe05f), .driver_info = BTUSB_ATH3012 }, 213 { USB_DEVICE(0x0489, 0xe076), .driver_info = BTUSB_ATH3012 }, 214 { USB_DEVICE(0x0489, 0xe078), .driver_info = BTUSB_ATH3012 }, 215 { USB_DEVICE(0x0489, 0xe095), .driver_info = BTUSB_ATH3012 }, 216 { USB_DEVICE(0x04c5, 0x1330), .driver_info = BTUSB_ATH3012 }, 217 { USB_DEVICE(0x04ca, 0x3004), .driver_info = BTUSB_ATH3012 }, 218 { USB_DEVICE(0x04ca, 0x3005), .driver_info = BTUSB_ATH3012 }, 219 { USB_DEVICE(0x04ca, 0x3006), .driver_info = BTUSB_ATH3012 }, 220 { USB_DEVICE(0x04ca, 0x3007), .driver_info = BTUSB_ATH3012 }, 221 { USB_DEVICE(0x04ca, 0x3008), .driver_info = BTUSB_ATH3012 }, 222 { USB_DEVICE(0x04ca, 0x300b), .driver_info = BTUSB_ATH3012 }, 223 { USB_DEVICE(0x04ca, 0x300d), .driver_info = BTUSB_ATH3012 }, 224 { USB_DEVICE(0x04ca, 0x300f), .driver_info = BTUSB_ATH3012 }, 225 { USB_DEVICE(0x04ca, 0x3010), .driver_info = BTUSB_ATH3012 }, 226 { USB_DEVICE(0x04ca, 0x3014), .driver_info = BTUSB_ATH3012 }, 227 { USB_DEVICE(0x04ca, 0x3018), .driver_info = BTUSB_ATH3012 }, 228 { USB_DEVICE(0x0930, 0x0219), .driver_info = BTUSB_ATH3012 }, 229 { USB_DEVICE(0x0930, 0x021c), .driver_info = BTUSB_ATH3012 }, 230 { USB_DEVICE(0x0930, 0x0220), .driver_info = BTUSB_ATH3012 }, 231 { USB_DEVICE(0x0930, 0x0227), .driver_info = BTUSB_ATH3012 }, 232 { USB_DEVICE(0x0b05, 0x17d0), .driver_info = BTUSB_ATH3012 }, 233 { USB_DEVICE(0x0cf3, 0x0036), .driver_info = BTUSB_ATH3012 }, 234 { USB_DEVICE(0x0cf3, 0x3004), .driver_info = BTUSB_ATH3012 }, 235 { USB_DEVICE(0x0cf3, 0x3008), .driver_info = BTUSB_ATH3012 }, 236 { USB_DEVICE(0x0cf3, 0x311d), .driver_info = BTUSB_ATH3012 }, 237 { USB_DEVICE(0x0cf3, 0x311e), .driver_info = BTUSB_ATH3012 }, 238 { USB_DEVICE(0x0cf3, 0x311f), .driver_info = BTUSB_ATH3012 }, 239 { USB_DEVICE(0x0cf3, 0x3121), .driver_info = BTUSB_ATH3012 }, 240 { USB_DEVICE(0x0cf3, 0x817a), .driver_info = BTUSB_ATH3012 }, 241 { USB_DEVICE(0x0cf3, 0x817b), .driver_info = BTUSB_ATH3012 }, 242 { USB_DEVICE(0x0cf3, 0xe003), .driver_info = BTUSB_ATH3012 }, 243 { USB_DEVICE(0x0cf3, 0xe004), .driver_info = BTUSB_ATH3012 }, 244 { USB_DEVICE(0x0cf3, 0xe005), .driver_info = BTUSB_ATH3012 }, 245 { USB_DEVICE(0x0cf3, 0xe006), .driver_info = BTUSB_ATH3012 }, 246 { USB_DEVICE(0x13d3, 0x3362), .driver_info = BTUSB_ATH3012 }, 247 { USB_DEVICE(0x13d3, 0x3375), .driver_info = BTUSB_ATH3012 }, 248 { USB_DEVICE(0x13d3, 0x3393), .driver_info = BTUSB_ATH3012 }, 249 { USB_DEVICE(0x13d3, 0x3395), .driver_info = BTUSB_ATH3012 }, 250 { USB_DEVICE(0x13d3, 0x3402), .driver_info = BTUSB_ATH3012 }, 251 { USB_DEVICE(0x13d3, 0x3408), .driver_info = BTUSB_ATH3012 }, 252 { USB_DEVICE(0x13d3, 0x3423), .driver_info = BTUSB_ATH3012 }, 253 { USB_DEVICE(0x13d3, 0x3432), .driver_info = BTUSB_ATH3012 }, 254 { USB_DEVICE(0x13d3, 0x3472), .driver_info = BTUSB_ATH3012 }, 255 { USB_DEVICE(0x13d3, 0x3474), .driver_info = BTUSB_ATH3012 }, 256 { USB_DEVICE(0x13d3, 0x3487), .driver_info = BTUSB_ATH3012 }, 257 { USB_DEVICE(0x13d3, 0x3490), .driver_info = BTUSB_ATH3012 }, 258 259 /* Atheros AR5BBU12 with sflash firmware */ 260 { USB_DEVICE(0x0489, 0xe02c), .driver_info = BTUSB_IGNORE }, 261 262 /* Atheros AR5BBU12 with sflash firmware */ 263 { USB_DEVICE(0x0489, 0xe036), .driver_info = BTUSB_ATH3012 }, 264 { USB_DEVICE(0x0489, 0xe03c), .driver_info = BTUSB_ATH3012 }, 265 266 /* QCA ROME chipset */ 267 { USB_DEVICE(0x0cf3, 0xe007), .driver_info = BTUSB_QCA_ROME }, 268 { USB_DEVICE(0x0cf3, 0xe009), .driver_info = BTUSB_QCA_ROME }, 269 { USB_DEVICE(0x0cf3, 0xe010), .driver_info = BTUSB_QCA_ROME }, 270 { USB_DEVICE(0x0cf3, 0xe300), .driver_info = BTUSB_QCA_ROME }, 271 { USB_DEVICE(0x0cf3, 0xe301), .driver_info = BTUSB_QCA_ROME }, 272 { USB_DEVICE(0x0cf3, 0xe360), .driver_info = BTUSB_QCA_ROME }, 273 { USB_DEVICE(0x0489, 0xe092), .driver_info = BTUSB_QCA_ROME }, 274 { USB_DEVICE(0x0489, 0xe09f), .driver_info = BTUSB_QCA_ROME }, 275 { USB_DEVICE(0x0489, 0xe0a2), .driver_info = BTUSB_QCA_ROME }, 276 { USB_DEVICE(0x04ca, 0x3011), .driver_info = BTUSB_QCA_ROME }, 277 { USB_DEVICE(0x04ca, 0x3015), .driver_info = BTUSB_QCA_ROME }, 278 { USB_DEVICE(0x04ca, 0x3016), .driver_info = BTUSB_QCA_ROME }, 279 { USB_DEVICE(0x04ca, 0x301a), .driver_info = BTUSB_QCA_ROME }, 280 { USB_DEVICE(0x13d3, 0x3496), .driver_info = BTUSB_QCA_ROME }, 281 282 /* Broadcom BCM2035 */ 283 { USB_DEVICE(0x0a5c, 0x2009), .driver_info = BTUSB_BCM92035 }, 284 { USB_DEVICE(0x0a5c, 0x200a), .driver_info = BTUSB_WRONG_SCO_MTU }, 285 { USB_DEVICE(0x0a5c, 0x2035), .driver_info = BTUSB_WRONG_SCO_MTU }, 286 287 /* Broadcom BCM2045 */ 288 { USB_DEVICE(0x0a5c, 0x2039), .driver_info = BTUSB_WRONG_SCO_MTU }, 289 { USB_DEVICE(0x0a5c, 0x2101), .driver_info = BTUSB_WRONG_SCO_MTU }, 290 291 /* IBM/Lenovo ThinkPad with Broadcom chip */ 292 { USB_DEVICE(0x0a5c, 0x201e), .driver_info = BTUSB_WRONG_SCO_MTU }, 293 { USB_DEVICE(0x0a5c, 0x2110), .driver_info = BTUSB_WRONG_SCO_MTU }, 294 295 /* HP laptop with Broadcom chip */ 296 { USB_DEVICE(0x03f0, 0x171d), .driver_info = BTUSB_WRONG_SCO_MTU }, 297 298 /* Dell laptop with Broadcom chip */ 299 { USB_DEVICE(0x413c, 0x8126), .driver_info = BTUSB_WRONG_SCO_MTU }, 300 301 /* Dell Wireless 370 and 410 devices */ 302 { USB_DEVICE(0x413c, 0x8152), .driver_info = BTUSB_WRONG_SCO_MTU }, 303 { USB_DEVICE(0x413c, 0x8156), .driver_info = BTUSB_WRONG_SCO_MTU }, 304 305 /* Belkin F8T012 and F8T013 devices */ 306 { USB_DEVICE(0x050d, 0x0012), .driver_info = BTUSB_WRONG_SCO_MTU }, 307 { USB_DEVICE(0x050d, 0x0013), .driver_info = BTUSB_WRONG_SCO_MTU }, 308 309 /* Asus WL-BTD202 device */ 310 { USB_DEVICE(0x0b05, 0x1715), .driver_info = BTUSB_WRONG_SCO_MTU }, 311 312 /* Kensington Bluetooth USB adapter */ 313 { USB_DEVICE(0x047d, 0x105e), .driver_info = BTUSB_WRONG_SCO_MTU }, 314 315 /* RTX Telecom based adapters with buggy SCO support */ 316 { USB_DEVICE(0x0400, 0x0807), .driver_info = BTUSB_BROKEN_ISOC }, 317 { USB_DEVICE(0x0400, 0x080a), .driver_info = BTUSB_BROKEN_ISOC }, 318 319 /* CONWISE Technology based adapters with buggy SCO support */ 320 { USB_DEVICE(0x0e5e, 0x6622), 321 .driver_info = BTUSB_BROKEN_ISOC | BTUSB_CW6622}, 322 323 /* Roper Class 1 Bluetooth Dongle (Silicon Wave based) */ 324 { USB_DEVICE(0x1310, 0x0001), .driver_info = BTUSB_SWAVE }, 325 326 /* Digianswer devices */ 327 { USB_DEVICE(0x08fd, 0x0001), .driver_info = BTUSB_DIGIANSWER }, 328 { USB_DEVICE(0x08fd, 0x0002), .driver_info = BTUSB_IGNORE }, 329 330 /* CSR BlueCore Bluetooth Sniffer */ 331 { USB_DEVICE(0x0a12, 0x0002), 332 .driver_info = BTUSB_SNIFFER | BTUSB_BROKEN_ISOC }, 333 334 /* Frontline ComProbe Bluetooth Sniffer */ 335 { USB_DEVICE(0x16d3, 0x0002), 336 .driver_info = BTUSB_SNIFFER | BTUSB_BROKEN_ISOC }, 337 338 /* Marvell Bluetooth devices */ 339 { USB_DEVICE(0x1286, 0x2044), .driver_info = BTUSB_MARVELL }, 340 { USB_DEVICE(0x1286, 0x2046), .driver_info = BTUSB_MARVELL }, 341 { USB_DEVICE(0x1286, 0x204e), .driver_info = BTUSB_MARVELL }, 342 343 /* Intel Bluetooth devices */ 344 { USB_DEVICE(0x8087, 0x0025), .driver_info = BTUSB_INTEL_NEW }, 345 { USB_DEVICE(0x8087, 0x0026), .driver_info = BTUSB_INTEL_NEW }, 346 { USB_DEVICE(0x8087, 0x07da), .driver_info = BTUSB_CSR }, 347 { USB_DEVICE(0x8087, 0x07dc), .driver_info = BTUSB_INTEL }, 348 { USB_DEVICE(0x8087, 0x0a2a), .driver_info = BTUSB_INTEL }, 349 { USB_DEVICE(0x8087, 0x0a2b), .driver_info = BTUSB_INTEL_NEW }, 350 { USB_DEVICE(0x8087, 0x0aa7), .driver_info = BTUSB_INTEL }, 351 { USB_DEVICE(0x8087, 0x0aaa), .driver_info = BTUSB_INTEL_NEW }, 352 353 /* Other Intel Bluetooth devices */ 354 { USB_VENDOR_AND_INTERFACE_INFO(0x8087, 0xe0, 0x01, 0x01), 355 .driver_info = BTUSB_IGNORE }, 356 357 /* Realtek Bluetooth devices */ 358 { USB_VENDOR_AND_INTERFACE_INFO(0x0bda, 0xe0, 0x01, 0x01), 359 .driver_info = BTUSB_REALTEK }, 360 361 /* Additional Realtek 8723AE Bluetooth devices */ 362 { USB_DEVICE(0x0930, 0x021d), .driver_info = BTUSB_REALTEK }, 363 { USB_DEVICE(0x13d3, 0x3394), .driver_info = BTUSB_REALTEK }, 364 365 /* Additional Realtek 8723BE Bluetooth devices */ 366 { USB_DEVICE(0x0489, 0xe085), .driver_info = BTUSB_REALTEK }, 367 { USB_DEVICE(0x0489, 0xe08b), .driver_info = BTUSB_REALTEK }, 368 { USB_DEVICE(0x13d3, 0x3410), .driver_info = BTUSB_REALTEK }, 369 { USB_DEVICE(0x13d3, 0x3416), .driver_info = BTUSB_REALTEK }, 370 { USB_DEVICE(0x13d3, 0x3459), .driver_info = BTUSB_REALTEK }, 371 { USB_DEVICE(0x13d3, 0x3494), .driver_info = BTUSB_REALTEK }, 372 373 /* Additional Realtek 8723BU Bluetooth devices */ 374 { USB_DEVICE(0x7392, 0xa611), .driver_info = BTUSB_REALTEK }, 375 376 /* Additional Realtek 8723DE Bluetooth devices */ 377 { USB_DEVICE(0x0bda, 0xb009), .driver_info = BTUSB_REALTEK }, 378 { USB_DEVICE(0x2ff8, 0xb011), .driver_info = BTUSB_REALTEK }, 379 380 /* Additional Realtek 8821AE Bluetooth devices */ 381 { USB_DEVICE(0x0b05, 0x17dc), .driver_info = BTUSB_REALTEK }, 382 { USB_DEVICE(0x13d3, 0x3414), .driver_info = BTUSB_REALTEK }, 383 { USB_DEVICE(0x13d3, 0x3458), .driver_info = BTUSB_REALTEK }, 384 { USB_DEVICE(0x13d3, 0x3461), .driver_info = BTUSB_REALTEK }, 385 { USB_DEVICE(0x13d3, 0x3462), .driver_info = BTUSB_REALTEK }, 386 387 /* Additional Realtek 8822BE Bluetooth devices */ 388 { USB_DEVICE(0x13d3, 0x3526), .driver_info = BTUSB_REALTEK }, 389 { USB_DEVICE(0x0b05, 0x185c), .driver_info = BTUSB_REALTEK }, 390 391 /* Silicon Wave based devices */ 392 { USB_DEVICE(0x0c10, 0x0000), .driver_info = BTUSB_SWAVE }, 393 394 { } /* Terminating entry */ 395 }; 396 397 /* The Bluetooth USB module build into some devices needs to be reset on resume, 398 * this is a problem with the platform (likely shutting off all power) not with 399 * the module itself. So we use a DMI list to match known broken platforms. 400 */ 401 static const struct dmi_system_id btusb_needs_reset_resume_table[] = { 402 { 403 /* Dell OptiPlex 3060 (QCA ROME device 0cf3:e007) */ 404 .matches = { 405 DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."), 406 DMI_MATCH(DMI_PRODUCT_NAME, "OptiPlex 3060"), 407 }, 408 }, 409 { 410 /* Dell XPS 9360 (QCA ROME device 0cf3:e300) */ 411 .matches = { 412 DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."), 413 DMI_MATCH(DMI_PRODUCT_NAME, "XPS 13 9360"), 414 }, 415 }, 416 { 417 /* Dell Inspiron 5565 (QCA ROME device 0cf3:e009) */ 418 .matches = { 419 DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."), 420 DMI_MATCH(DMI_PRODUCT_NAME, "Inspiron 5565"), 421 }, 422 }, 423 {} 424 }; 425 426 #define BTUSB_MAX_ISOC_FRAMES 10 427 428 #define BTUSB_INTR_RUNNING 0 429 #define BTUSB_BULK_RUNNING 1 430 #define BTUSB_ISOC_RUNNING 2 431 #define BTUSB_SUSPENDING 3 432 #define BTUSB_DID_ISO_RESUME 4 433 #define BTUSB_BOOTLOADER 5 434 #define BTUSB_DOWNLOADING 6 435 #define BTUSB_FIRMWARE_LOADED 7 436 #define BTUSB_FIRMWARE_FAILED 8 437 #define BTUSB_BOOTING 9 438 #define BTUSB_DIAG_RUNNING 10 439 #define BTUSB_OOB_WAKE_ENABLED 11 440 441 struct btusb_data { 442 struct hci_dev *hdev; 443 struct usb_device *udev; 444 struct usb_interface *intf; 445 struct usb_interface *isoc; 446 struct usb_interface *diag; 447 unsigned isoc_ifnum; 448 449 unsigned long flags; 450 451 struct work_struct work; 452 struct work_struct waker; 453 454 struct usb_anchor deferred; 455 struct usb_anchor tx_anchor; 456 int tx_in_flight; 457 spinlock_t txlock; 458 459 struct usb_anchor intr_anchor; 460 struct usb_anchor bulk_anchor; 461 struct usb_anchor isoc_anchor; 462 struct usb_anchor diag_anchor; 463 spinlock_t rxlock; 464 465 struct sk_buff *evt_skb; 466 struct sk_buff *acl_skb; 467 struct sk_buff *sco_skb; 468 469 struct usb_endpoint_descriptor *intr_ep; 470 struct usb_endpoint_descriptor *bulk_tx_ep; 471 struct usb_endpoint_descriptor *bulk_rx_ep; 472 struct usb_endpoint_descriptor *isoc_tx_ep; 473 struct usb_endpoint_descriptor *isoc_rx_ep; 474 struct usb_endpoint_descriptor *diag_tx_ep; 475 struct usb_endpoint_descriptor *diag_rx_ep; 476 477 __u8 cmdreq_type; 478 __u8 cmdreq; 479 480 unsigned int sco_num; 481 int isoc_altsetting; 482 int suspend_count; 483 484 int (*recv_event)(struct hci_dev *hdev, struct sk_buff *skb); 485 int (*recv_bulk)(struct btusb_data *data, void *buffer, int count); 486 487 int (*setup_on_usb)(struct hci_dev *hdev); 488 489 int oob_wake_irq; /* irq for out-of-band wake-on-bt */ 490 }; 491 492 static inline void btusb_free_frags(struct btusb_data *data) 493 { 494 unsigned long flags; 495 496 spin_lock_irqsave(&data->rxlock, flags); 497 498 kfree_skb(data->evt_skb); 499 data->evt_skb = NULL; 500 501 kfree_skb(data->acl_skb); 502 data->acl_skb = NULL; 503 504 kfree_skb(data->sco_skb); 505 data->sco_skb = NULL; 506 507 spin_unlock_irqrestore(&data->rxlock, flags); 508 } 509 510 static int btusb_recv_intr(struct btusb_data *data, void *buffer, int count) 511 { 512 struct sk_buff *skb; 513 unsigned long flags; 514 int err = 0; 515 516 spin_lock_irqsave(&data->rxlock, flags); 517 skb = data->evt_skb; 518 519 while (count) { 520 int len; 521 522 if (!skb) { 523 skb = bt_skb_alloc(HCI_MAX_EVENT_SIZE, GFP_ATOMIC); 524 if (!skb) { 525 err = -ENOMEM; 526 break; 527 } 528 529 hci_skb_pkt_type(skb) = HCI_EVENT_PKT; 530 hci_skb_expect(skb) = HCI_EVENT_HDR_SIZE; 531 } 532 533 len = min_t(uint, hci_skb_expect(skb), count); 534 skb_put_data(skb, buffer, len); 535 536 count -= len; 537 buffer += len; 538 hci_skb_expect(skb) -= len; 539 540 if (skb->len == HCI_EVENT_HDR_SIZE) { 541 /* Complete event header */ 542 hci_skb_expect(skb) = hci_event_hdr(skb)->plen; 543 544 if (skb_tailroom(skb) < hci_skb_expect(skb)) { 545 kfree_skb(skb); 546 skb = NULL; 547 548 err = -EILSEQ; 549 break; 550 } 551 } 552 553 if (!hci_skb_expect(skb)) { 554 /* Complete frame */ 555 data->recv_event(data->hdev, skb); 556 skb = NULL; 557 } 558 } 559 560 data->evt_skb = skb; 561 spin_unlock_irqrestore(&data->rxlock, flags); 562 563 return err; 564 } 565 566 static int btusb_recv_bulk(struct btusb_data *data, void *buffer, int count) 567 { 568 struct sk_buff *skb; 569 unsigned long flags; 570 int err = 0; 571 572 spin_lock_irqsave(&data->rxlock, flags); 573 skb = data->acl_skb; 574 575 while (count) { 576 int len; 577 578 if (!skb) { 579 skb = bt_skb_alloc(HCI_MAX_FRAME_SIZE, GFP_ATOMIC); 580 if (!skb) { 581 err = -ENOMEM; 582 break; 583 } 584 585 hci_skb_pkt_type(skb) = HCI_ACLDATA_PKT; 586 hci_skb_expect(skb) = HCI_ACL_HDR_SIZE; 587 } 588 589 len = min_t(uint, hci_skb_expect(skb), count); 590 skb_put_data(skb, buffer, len); 591 592 count -= len; 593 buffer += len; 594 hci_skb_expect(skb) -= len; 595 596 if (skb->len == HCI_ACL_HDR_SIZE) { 597 __le16 dlen = hci_acl_hdr(skb)->dlen; 598 599 /* Complete ACL header */ 600 hci_skb_expect(skb) = __le16_to_cpu(dlen); 601 602 if (skb_tailroom(skb) < hci_skb_expect(skb)) { 603 kfree_skb(skb); 604 skb = NULL; 605 606 err = -EILSEQ; 607 break; 608 } 609 } 610 611 if (!hci_skb_expect(skb)) { 612 /* Complete frame */ 613 hci_recv_frame(data->hdev, skb); 614 skb = NULL; 615 } 616 } 617 618 data->acl_skb = skb; 619 spin_unlock_irqrestore(&data->rxlock, flags); 620 621 return err; 622 } 623 624 static int btusb_recv_isoc(struct btusb_data *data, void *buffer, int count) 625 { 626 struct sk_buff *skb; 627 unsigned long flags; 628 int err = 0; 629 630 spin_lock_irqsave(&data->rxlock, flags); 631 skb = data->sco_skb; 632 633 while (count) { 634 int len; 635 636 if (!skb) { 637 skb = bt_skb_alloc(HCI_MAX_SCO_SIZE, GFP_ATOMIC); 638 if (!skb) { 639 err = -ENOMEM; 640 break; 641 } 642 643 hci_skb_pkt_type(skb) = HCI_SCODATA_PKT; 644 hci_skb_expect(skb) = HCI_SCO_HDR_SIZE; 645 } 646 647 len = min_t(uint, hci_skb_expect(skb), count); 648 skb_put_data(skb, buffer, len); 649 650 count -= len; 651 buffer += len; 652 hci_skb_expect(skb) -= len; 653 654 if (skb->len == HCI_SCO_HDR_SIZE) { 655 /* Complete SCO header */ 656 hci_skb_expect(skb) = hci_sco_hdr(skb)->dlen; 657 658 if (skb_tailroom(skb) < hci_skb_expect(skb)) { 659 kfree_skb(skb); 660 skb = NULL; 661 662 err = -EILSEQ; 663 break; 664 } 665 } 666 667 if (!hci_skb_expect(skb)) { 668 /* Complete frame */ 669 hci_recv_frame(data->hdev, skb); 670 skb = NULL; 671 } 672 } 673 674 data->sco_skb = skb; 675 spin_unlock_irqrestore(&data->rxlock, flags); 676 677 return err; 678 } 679 680 static void btusb_intr_complete(struct urb *urb) 681 { 682 struct hci_dev *hdev = urb->context; 683 struct btusb_data *data = hci_get_drvdata(hdev); 684 int err; 685 686 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status, 687 urb->actual_length); 688 689 if (!test_bit(HCI_RUNNING, &hdev->flags)) 690 return; 691 692 if (urb->status == 0) { 693 hdev->stat.byte_rx += urb->actual_length; 694 695 if (btusb_recv_intr(data, urb->transfer_buffer, 696 urb->actual_length) < 0) { 697 bt_dev_err(hdev, "corrupted event packet"); 698 hdev->stat.err_rx++; 699 } 700 } else if (urb->status == -ENOENT) { 701 /* Avoid suspend failed when usb_kill_urb */ 702 return; 703 } 704 705 if (!test_bit(BTUSB_INTR_RUNNING, &data->flags)) 706 return; 707 708 usb_mark_last_busy(data->udev); 709 usb_anchor_urb(urb, &data->intr_anchor); 710 711 err = usb_submit_urb(urb, GFP_ATOMIC); 712 if (err < 0) { 713 /* -EPERM: urb is being killed; 714 * -ENODEV: device got disconnected 715 */ 716 if (err != -EPERM && err != -ENODEV) 717 bt_dev_err(hdev, "urb %p failed to resubmit (%d)", 718 urb, -err); 719 usb_unanchor_urb(urb); 720 } 721 } 722 723 static int btusb_submit_intr_urb(struct hci_dev *hdev, gfp_t mem_flags) 724 { 725 struct btusb_data *data = hci_get_drvdata(hdev); 726 struct urb *urb; 727 unsigned char *buf; 728 unsigned int pipe; 729 int err, size; 730 731 BT_DBG("%s", hdev->name); 732 733 if (!data->intr_ep) 734 return -ENODEV; 735 736 urb = usb_alloc_urb(0, mem_flags); 737 if (!urb) 738 return -ENOMEM; 739 740 size = le16_to_cpu(data->intr_ep->wMaxPacketSize); 741 742 buf = kmalloc(size, mem_flags); 743 if (!buf) { 744 usb_free_urb(urb); 745 return -ENOMEM; 746 } 747 748 pipe = usb_rcvintpipe(data->udev, data->intr_ep->bEndpointAddress); 749 750 usb_fill_int_urb(urb, data->udev, pipe, buf, size, 751 btusb_intr_complete, hdev, data->intr_ep->bInterval); 752 753 urb->transfer_flags |= URB_FREE_BUFFER; 754 755 usb_anchor_urb(urb, &data->intr_anchor); 756 757 err = usb_submit_urb(urb, mem_flags); 758 if (err < 0) { 759 if (err != -EPERM && err != -ENODEV) 760 bt_dev_err(hdev, "urb %p submission failed (%d)", 761 urb, -err); 762 usb_unanchor_urb(urb); 763 } 764 765 usb_free_urb(urb); 766 767 return err; 768 } 769 770 static void btusb_bulk_complete(struct urb *urb) 771 { 772 struct hci_dev *hdev = urb->context; 773 struct btusb_data *data = hci_get_drvdata(hdev); 774 int err; 775 776 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status, 777 urb->actual_length); 778 779 if (!test_bit(HCI_RUNNING, &hdev->flags)) 780 return; 781 782 if (urb->status == 0) { 783 hdev->stat.byte_rx += urb->actual_length; 784 785 if (data->recv_bulk(data, urb->transfer_buffer, 786 urb->actual_length) < 0) { 787 bt_dev_err(hdev, "corrupted ACL packet"); 788 hdev->stat.err_rx++; 789 } 790 } else if (urb->status == -ENOENT) { 791 /* Avoid suspend failed when usb_kill_urb */ 792 return; 793 } 794 795 if (!test_bit(BTUSB_BULK_RUNNING, &data->flags)) 796 return; 797 798 usb_anchor_urb(urb, &data->bulk_anchor); 799 usb_mark_last_busy(data->udev); 800 801 err = usb_submit_urb(urb, GFP_ATOMIC); 802 if (err < 0) { 803 /* -EPERM: urb is being killed; 804 * -ENODEV: device got disconnected 805 */ 806 if (err != -EPERM && err != -ENODEV) 807 bt_dev_err(hdev, "urb %p failed to resubmit (%d)", 808 urb, -err); 809 usb_unanchor_urb(urb); 810 } 811 } 812 813 static int btusb_submit_bulk_urb(struct hci_dev *hdev, gfp_t mem_flags) 814 { 815 struct btusb_data *data = hci_get_drvdata(hdev); 816 struct urb *urb; 817 unsigned char *buf; 818 unsigned int pipe; 819 int err, size = HCI_MAX_FRAME_SIZE; 820 821 BT_DBG("%s", hdev->name); 822 823 if (!data->bulk_rx_ep) 824 return -ENODEV; 825 826 urb = usb_alloc_urb(0, mem_flags); 827 if (!urb) 828 return -ENOMEM; 829 830 buf = kmalloc(size, mem_flags); 831 if (!buf) { 832 usb_free_urb(urb); 833 return -ENOMEM; 834 } 835 836 pipe = usb_rcvbulkpipe(data->udev, data->bulk_rx_ep->bEndpointAddress); 837 838 usb_fill_bulk_urb(urb, data->udev, pipe, buf, size, 839 btusb_bulk_complete, hdev); 840 841 urb->transfer_flags |= URB_FREE_BUFFER; 842 843 usb_mark_last_busy(data->udev); 844 usb_anchor_urb(urb, &data->bulk_anchor); 845 846 err = usb_submit_urb(urb, mem_flags); 847 if (err < 0) { 848 if (err != -EPERM && err != -ENODEV) 849 bt_dev_err(hdev, "urb %p submission failed (%d)", 850 urb, -err); 851 usb_unanchor_urb(urb); 852 } 853 854 usb_free_urb(urb); 855 856 return err; 857 } 858 859 static void btusb_isoc_complete(struct urb *urb) 860 { 861 struct hci_dev *hdev = urb->context; 862 struct btusb_data *data = hci_get_drvdata(hdev); 863 int i, err; 864 865 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status, 866 urb->actual_length); 867 868 if (!test_bit(HCI_RUNNING, &hdev->flags)) 869 return; 870 871 if (urb->status == 0) { 872 for (i = 0; i < urb->number_of_packets; i++) { 873 unsigned int offset = urb->iso_frame_desc[i].offset; 874 unsigned int length = urb->iso_frame_desc[i].actual_length; 875 876 if (urb->iso_frame_desc[i].status) 877 continue; 878 879 hdev->stat.byte_rx += length; 880 881 if (btusb_recv_isoc(data, urb->transfer_buffer + offset, 882 length) < 0) { 883 bt_dev_err(hdev, "corrupted SCO packet"); 884 hdev->stat.err_rx++; 885 } 886 } 887 } else if (urb->status == -ENOENT) { 888 /* Avoid suspend failed when usb_kill_urb */ 889 return; 890 } 891 892 if (!test_bit(BTUSB_ISOC_RUNNING, &data->flags)) 893 return; 894 895 usb_anchor_urb(urb, &data->isoc_anchor); 896 897 err = usb_submit_urb(urb, GFP_ATOMIC); 898 if (err < 0) { 899 /* -EPERM: urb is being killed; 900 * -ENODEV: device got disconnected 901 */ 902 if (err != -EPERM && err != -ENODEV) 903 bt_dev_err(hdev, "urb %p failed to resubmit (%d)", 904 urb, -err); 905 usb_unanchor_urb(urb); 906 } 907 } 908 909 static inline void __fill_isoc_descriptor(struct urb *urb, int len, int mtu) 910 { 911 int i, offset = 0; 912 913 BT_DBG("len %d mtu %d", len, mtu); 914 915 for (i = 0; i < BTUSB_MAX_ISOC_FRAMES && len >= mtu; 916 i++, offset += mtu, len -= mtu) { 917 urb->iso_frame_desc[i].offset = offset; 918 urb->iso_frame_desc[i].length = mtu; 919 } 920 921 if (len && i < BTUSB_MAX_ISOC_FRAMES) { 922 urb->iso_frame_desc[i].offset = offset; 923 urb->iso_frame_desc[i].length = len; 924 i++; 925 } 926 927 urb->number_of_packets = i; 928 } 929 930 static int btusb_submit_isoc_urb(struct hci_dev *hdev, gfp_t mem_flags) 931 { 932 struct btusb_data *data = hci_get_drvdata(hdev); 933 struct urb *urb; 934 unsigned char *buf; 935 unsigned int pipe; 936 int err, size; 937 938 BT_DBG("%s", hdev->name); 939 940 if (!data->isoc_rx_ep) 941 return -ENODEV; 942 943 urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, mem_flags); 944 if (!urb) 945 return -ENOMEM; 946 947 size = le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize) * 948 BTUSB_MAX_ISOC_FRAMES; 949 950 buf = kmalloc(size, mem_flags); 951 if (!buf) { 952 usb_free_urb(urb); 953 return -ENOMEM; 954 } 955 956 pipe = usb_rcvisocpipe(data->udev, data->isoc_rx_ep->bEndpointAddress); 957 958 usb_fill_int_urb(urb, data->udev, pipe, buf, size, btusb_isoc_complete, 959 hdev, data->isoc_rx_ep->bInterval); 960 961 urb->transfer_flags = URB_FREE_BUFFER | URB_ISO_ASAP; 962 963 __fill_isoc_descriptor(urb, size, 964 le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize)); 965 966 usb_anchor_urb(urb, &data->isoc_anchor); 967 968 err = usb_submit_urb(urb, mem_flags); 969 if (err < 0) { 970 if (err != -EPERM && err != -ENODEV) 971 bt_dev_err(hdev, "urb %p submission failed (%d)", 972 urb, -err); 973 usb_unanchor_urb(urb); 974 } 975 976 usb_free_urb(urb); 977 978 return err; 979 } 980 981 static void btusb_diag_complete(struct urb *urb) 982 { 983 struct hci_dev *hdev = urb->context; 984 struct btusb_data *data = hci_get_drvdata(hdev); 985 int err; 986 987 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status, 988 urb->actual_length); 989 990 if (urb->status == 0) { 991 struct sk_buff *skb; 992 993 skb = bt_skb_alloc(urb->actual_length, GFP_ATOMIC); 994 if (skb) { 995 skb_put_data(skb, urb->transfer_buffer, 996 urb->actual_length); 997 hci_recv_diag(hdev, skb); 998 } 999 } else if (urb->status == -ENOENT) { 1000 /* Avoid suspend failed when usb_kill_urb */ 1001 return; 1002 } 1003 1004 if (!test_bit(BTUSB_DIAG_RUNNING, &data->flags)) 1005 return; 1006 1007 usb_anchor_urb(urb, &data->diag_anchor); 1008 usb_mark_last_busy(data->udev); 1009 1010 err = usb_submit_urb(urb, GFP_ATOMIC); 1011 if (err < 0) { 1012 /* -EPERM: urb is being killed; 1013 * -ENODEV: device got disconnected 1014 */ 1015 if (err != -EPERM && err != -ENODEV) 1016 bt_dev_err(hdev, "urb %p failed to resubmit (%d)", 1017 urb, -err); 1018 usb_unanchor_urb(urb); 1019 } 1020 } 1021 1022 static int btusb_submit_diag_urb(struct hci_dev *hdev, gfp_t mem_flags) 1023 { 1024 struct btusb_data *data = hci_get_drvdata(hdev); 1025 struct urb *urb; 1026 unsigned char *buf; 1027 unsigned int pipe; 1028 int err, size = HCI_MAX_FRAME_SIZE; 1029 1030 BT_DBG("%s", hdev->name); 1031 1032 if (!data->diag_rx_ep) 1033 return -ENODEV; 1034 1035 urb = usb_alloc_urb(0, mem_flags); 1036 if (!urb) 1037 return -ENOMEM; 1038 1039 buf = kmalloc(size, mem_flags); 1040 if (!buf) { 1041 usb_free_urb(urb); 1042 return -ENOMEM; 1043 } 1044 1045 pipe = usb_rcvbulkpipe(data->udev, data->diag_rx_ep->bEndpointAddress); 1046 1047 usb_fill_bulk_urb(urb, data->udev, pipe, buf, size, 1048 btusb_diag_complete, hdev); 1049 1050 urb->transfer_flags |= URB_FREE_BUFFER; 1051 1052 usb_mark_last_busy(data->udev); 1053 usb_anchor_urb(urb, &data->diag_anchor); 1054 1055 err = usb_submit_urb(urb, mem_flags); 1056 if (err < 0) { 1057 if (err != -EPERM && err != -ENODEV) 1058 bt_dev_err(hdev, "urb %p submission failed (%d)", 1059 urb, -err); 1060 usb_unanchor_urb(urb); 1061 } 1062 1063 usb_free_urb(urb); 1064 1065 return err; 1066 } 1067 1068 static void btusb_tx_complete(struct urb *urb) 1069 { 1070 struct sk_buff *skb = urb->context; 1071 struct hci_dev *hdev = (struct hci_dev *)skb->dev; 1072 struct btusb_data *data = hci_get_drvdata(hdev); 1073 unsigned long flags; 1074 1075 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status, 1076 urb->actual_length); 1077 1078 if (!test_bit(HCI_RUNNING, &hdev->flags)) 1079 goto done; 1080 1081 if (!urb->status) 1082 hdev->stat.byte_tx += urb->transfer_buffer_length; 1083 else 1084 hdev->stat.err_tx++; 1085 1086 done: 1087 spin_lock_irqsave(&data->txlock, flags); 1088 data->tx_in_flight--; 1089 spin_unlock_irqrestore(&data->txlock, flags); 1090 1091 kfree(urb->setup_packet); 1092 1093 kfree_skb(skb); 1094 } 1095 1096 static void btusb_isoc_tx_complete(struct urb *urb) 1097 { 1098 struct sk_buff *skb = urb->context; 1099 struct hci_dev *hdev = (struct hci_dev *)skb->dev; 1100 1101 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status, 1102 urb->actual_length); 1103 1104 if (!test_bit(HCI_RUNNING, &hdev->flags)) 1105 goto done; 1106 1107 if (!urb->status) 1108 hdev->stat.byte_tx += urb->transfer_buffer_length; 1109 else 1110 hdev->stat.err_tx++; 1111 1112 done: 1113 kfree(urb->setup_packet); 1114 1115 kfree_skb(skb); 1116 } 1117 1118 static int btusb_open(struct hci_dev *hdev) 1119 { 1120 struct btusb_data *data = hci_get_drvdata(hdev); 1121 int err; 1122 1123 BT_DBG("%s", hdev->name); 1124 1125 err = usb_autopm_get_interface(data->intf); 1126 if (err < 0) 1127 return err; 1128 1129 /* Patching USB firmware files prior to starting any URBs of HCI path 1130 * It is more safe to use USB bulk channel for downloading USB patch 1131 */ 1132 if (data->setup_on_usb) { 1133 err = data->setup_on_usb(hdev); 1134 if (err < 0) 1135 return err; 1136 } 1137 1138 data->intf->needs_remote_wakeup = 1; 1139 /* device specific wakeup source enabled and required for USB 1140 * remote wakeup while host is suspended 1141 */ 1142 device_wakeup_enable(&data->udev->dev); 1143 1144 if (test_and_set_bit(BTUSB_INTR_RUNNING, &data->flags)) 1145 goto done; 1146 1147 err = btusb_submit_intr_urb(hdev, GFP_KERNEL); 1148 if (err < 0) 1149 goto failed; 1150 1151 err = btusb_submit_bulk_urb(hdev, GFP_KERNEL); 1152 if (err < 0) { 1153 usb_kill_anchored_urbs(&data->intr_anchor); 1154 goto failed; 1155 } 1156 1157 set_bit(BTUSB_BULK_RUNNING, &data->flags); 1158 btusb_submit_bulk_urb(hdev, GFP_KERNEL); 1159 1160 if (data->diag) { 1161 if (!btusb_submit_diag_urb(hdev, GFP_KERNEL)) 1162 set_bit(BTUSB_DIAG_RUNNING, &data->flags); 1163 } 1164 1165 done: 1166 usb_autopm_put_interface(data->intf); 1167 return 0; 1168 1169 failed: 1170 clear_bit(BTUSB_INTR_RUNNING, &data->flags); 1171 usb_autopm_put_interface(data->intf); 1172 return err; 1173 } 1174 1175 static void btusb_stop_traffic(struct btusb_data *data) 1176 { 1177 usb_kill_anchored_urbs(&data->intr_anchor); 1178 usb_kill_anchored_urbs(&data->bulk_anchor); 1179 usb_kill_anchored_urbs(&data->isoc_anchor); 1180 usb_kill_anchored_urbs(&data->diag_anchor); 1181 } 1182 1183 static int btusb_close(struct hci_dev *hdev) 1184 { 1185 struct btusb_data *data = hci_get_drvdata(hdev); 1186 int err; 1187 1188 BT_DBG("%s", hdev->name); 1189 1190 cancel_work_sync(&data->work); 1191 cancel_work_sync(&data->waker); 1192 1193 clear_bit(BTUSB_ISOC_RUNNING, &data->flags); 1194 clear_bit(BTUSB_BULK_RUNNING, &data->flags); 1195 clear_bit(BTUSB_INTR_RUNNING, &data->flags); 1196 clear_bit(BTUSB_DIAG_RUNNING, &data->flags); 1197 1198 btusb_stop_traffic(data); 1199 btusb_free_frags(data); 1200 1201 err = usb_autopm_get_interface(data->intf); 1202 if (err < 0) 1203 goto failed; 1204 1205 data->intf->needs_remote_wakeup = 0; 1206 device_wakeup_disable(&data->udev->dev); 1207 usb_autopm_put_interface(data->intf); 1208 1209 failed: 1210 usb_scuttle_anchored_urbs(&data->deferred); 1211 return 0; 1212 } 1213 1214 static int btusb_flush(struct hci_dev *hdev) 1215 { 1216 struct btusb_data *data = hci_get_drvdata(hdev); 1217 1218 BT_DBG("%s", hdev->name); 1219 1220 usb_kill_anchored_urbs(&data->tx_anchor); 1221 btusb_free_frags(data); 1222 1223 return 0; 1224 } 1225 1226 static struct urb *alloc_ctrl_urb(struct hci_dev *hdev, struct sk_buff *skb) 1227 { 1228 struct btusb_data *data = hci_get_drvdata(hdev); 1229 struct usb_ctrlrequest *dr; 1230 struct urb *urb; 1231 unsigned int pipe; 1232 1233 urb = usb_alloc_urb(0, GFP_KERNEL); 1234 if (!urb) 1235 return ERR_PTR(-ENOMEM); 1236 1237 dr = kmalloc(sizeof(*dr), GFP_KERNEL); 1238 if (!dr) { 1239 usb_free_urb(urb); 1240 return ERR_PTR(-ENOMEM); 1241 } 1242 1243 dr->bRequestType = data->cmdreq_type; 1244 dr->bRequest = data->cmdreq; 1245 dr->wIndex = 0; 1246 dr->wValue = 0; 1247 dr->wLength = __cpu_to_le16(skb->len); 1248 1249 pipe = usb_sndctrlpipe(data->udev, 0x00); 1250 1251 usb_fill_control_urb(urb, data->udev, pipe, (void *)dr, 1252 skb->data, skb->len, btusb_tx_complete, skb); 1253 1254 skb->dev = (void *)hdev; 1255 1256 return urb; 1257 } 1258 1259 static struct urb *alloc_bulk_urb(struct hci_dev *hdev, struct sk_buff *skb) 1260 { 1261 struct btusb_data *data = hci_get_drvdata(hdev); 1262 struct urb *urb; 1263 unsigned int pipe; 1264 1265 if (!data->bulk_tx_ep) 1266 return ERR_PTR(-ENODEV); 1267 1268 urb = usb_alloc_urb(0, GFP_KERNEL); 1269 if (!urb) 1270 return ERR_PTR(-ENOMEM); 1271 1272 pipe = usb_sndbulkpipe(data->udev, data->bulk_tx_ep->bEndpointAddress); 1273 1274 usb_fill_bulk_urb(urb, data->udev, pipe, 1275 skb->data, skb->len, btusb_tx_complete, skb); 1276 1277 skb->dev = (void *)hdev; 1278 1279 return urb; 1280 } 1281 1282 static struct urb *alloc_isoc_urb(struct hci_dev *hdev, struct sk_buff *skb) 1283 { 1284 struct btusb_data *data = hci_get_drvdata(hdev); 1285 struct urb *urb; 1286 unsigned int pipe; 1287 1288 if (!data->isoc_tx_ep) 1289 return ERR_PTR(-ENODEV); 1290 1291 urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, GFP_KERNEL); 1292 if (!urb) 1293 return ERR_PTR(-ENOMEM); 1294 1295 pipe = usb_sndisocpipe(data->udev, data->isoc_tx_ep->bEndpointAddress); 1296 1297 usb_fill_int_urb(urb, data->udev, pipe, 1298 skb->data, skb->len, btusb_isoc_tx_complete, 1299 skb, data->isoc_tx_ep->bInterval); 1300 1301 urb->transfer_flags = URB_ISO_ASAP; 1302 1303 __fill_isoc_descriptor(urb, skb->len, 1304 le16_to_cpu(data->isoc_tx_ep->wMaxPacketSize)); 1305 1306 skb->dev = (void *)hdev; 1307 1308 return urb; 1309 } 1310 1311 static int submit_tx_urb(struct hci_dev *hdev, struct urb *urb) 1312 { 1313 struct btusb_data *data = hci_get_drvdata(hdev); 1314 int err; 1315 1316 usb_anchor_urb(urb, &data->tx_anchor); 1317 1318 err = usb_submit_urb(urb, GFP_KERNEL); 1319 if (err < 0) { 1320 if (err != -EPERM && err != -ENODEV) 1321 bt_dev_err(hdev, "urb %p submission failed (%d)", 1322 urb, -err); 1323 kfree(urb->setup_packet); 1324 usb_unanchor_urb(urb); 1325 } else { 1326 usb_mark_last_busy(data->udev); 1327 } 1328 1329 usb_free_urb(urb); 1330 return err; 1331 } 1332 1333 static int submit_or_queue_tx_urb(struct hci_dev *hdev, struct urb *urb) 1334 { 1335 struct btusb_data *data = hci_get_drvdata(hdev); 1336 unsigned long flags; 1337 bool suspending; 1338 1339 spin_lock_irqsave(&data->txlock, flags); 1340 suspending = test_bit(BTUSB_SUSPENDING, &data->flags); 1341 if (!suspending) 1342 data->tx_in_flight++; 1343 spin_unlock_irqrestore(&data->txlock, flags); 1344 1345 if (!suspending) 1346 return submit_tx_urb(hdev, urb); 1347 1348 usb_anchor_urb(urb, &data->deferred); 1349 schedule_work(&data->waker); 1350 1351 usb_free_urb(urb); 1352 return 0; 1353 } 1354 1355 static int btusb_send_frame(struct hci_dev *hdev, struct sk_buff *skb) 1356 { 1357 struct urb *urb; 1358 1359 BT_DBG("%s", hdev->name); 1360 1361 switch (hci_skb_pkt_type(skb)) { 1362 case HCI_COMMAND_PKT: 1363 urb = alloc_ctrl_urb(hdev, skb); 1364 if (IS_ERR(urb)) 1365 return PTR_ERR(urb); 1366 1367 hdev->stat.cmd_tx++; 1368 return submit_or_queue_tx_urb(hdev, urb); 1369 1370 case HCI_ACLDATA_PKT: 1371 urb = alloc_bulk_urb(hdev, skb); 1372 if (IS_ERR(urb)) 1373 return PTR_ERR(urb); 1374 1375 hdev->stat.acl_tx++; 1376 return submit_or_queue_tx_urb(hdev, urb); 1377 1378 case HCI_SCODATA_PKT: 1379 if (hci_conn_num(hdev, SCO_LINK) < 1) 1380 return -ENODEV; 1381 1382 urb = alloc_isoc_urb(hdev, skb); 1383 if (IS_ERR(urb)) 1384 return PTR_ERR(urb); 1385 1386 hdev->stat.sco_tx++; 1387 return submit_tx_urb(hdev, urb); 1388 } 1389 1390 return -EILSEQ; 1391 } 1392 1393 static void btusb_notify(struct hci_dev *hdev, unsigned int evt) 1394 { 1395 struct btusb_data *data = hci_get_drvdata(hdev); 1396 1397 BT_DBG("%s evt %d", hdev->name, evt); 1398 1399 if (hci_conn_num(hdev, SCO_LINK) != data->sco_num) { 1400 data->sco_num = hci_conn_num(hdev, SCO_LINK); 1401 schedule_work(&data->work); 1402 } 1403 } 1404 1405 static inline int __set_isoc_interface(struct hci_dev *hdev, int altsetting) 1406 { 1407 struct btusb_data *data = hci_get_drvdata(hdev); 1408 struct usb_interface *intf = data->isoc; 1409 struct usb_endpoint_descriptor *ep_desc; 1410 int i, err; 1411 1412 if (!data->isoc) 1413 return -ENODEV; 1414 1415 err = usb_set_interface(data->udev, data->isoc_ifnum, altsetting); 1416 if (err < 0) { 1417 bt_dev_err(hdev, "setting interface failed (%d)", -err); 1418 return err; 1419 } 1420 1421 data->isoc_altsetting = altsetting; 1422 1423 data->isoc_tx_ep = NULL; 1424 data->isoc_rx_ep = NULL; 1425 1426 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) { 1427 ep_desc = &intf->cur_altsetting->endpoint[i].desc; 1428 1429 if (!data->isoc_tx_ep && usb_endpoint_is_isoc_out(ep_desc)) { 1430 data->isoc_tx_ep = ep_desc; 1431 continue; 1432 } 1433 1434 if (!data->isoc_rx_ep && usb_endpoint_is_isoc_in(ep_desc)) { 1435 data->isoc_rx_ep = ep_desc; 1436 continue; 1437 } 1438 } 1439 1440 if (!data->isoc_tx_ep || !data->isoc_rx_ep) { 1441 bt_dev_err(hdev, "invalid SCO descriptors"); 1442 return -ENODEV; 1443 } 1444 1445 return 0; 1446 } 1447 1448 static void btusb_work(struct work_struct *work) 1449 { 1450 struct btusb_data *data = container_of(work, struct btusb_data, work); 1451 struct hci_dev *hdev = data->hdev; 1452 int new_alts; 1453 int err; 1454 1455 if (data->sco_num > 0) { 1456 if (!test_bit(BTUSB_DID_ISO_RESUME, &data->flags)) { 1457 err = usb_autopm_get_interface(data->isoc ? data->isoc : data->intf); 1458 if (err < 0) { 1459 clear_bit(BTUSB_ISOC_RUNNING, &data->flags); 1460 usb_kill_anchored_urbs(&data->isoc_anchor); 1461 return; 1462 } 1463 1464 set_bit(BTUSB_DID_ISO_RESUME, &data->flags); 1465 } 1466 1467 if (hdev->voice_setting & 0x0020) { 1468 static const int alts[3] = { 2, 4, 5 }; 1469 1470 new_alts = alts[data->sco_num - 1]; 1471 } else { 1472 new_alts = data->sco_num; 1473 } 1474 1475 if (data->isoc_altsetting != new_alts) { 1476 unsigned long flags; 1477 1478 clear_bit(BTUSB_ISOC_RUNNING, &data->flags); 1479 usb_kill_anchored_urbs(&data->isoc_anchor); 1480 1481 /* When isochronous alternate setting needs to be 1482 * changed, because SCO connection has been added 1483 * or removed, a packet fragment may be left in the 1484 * reassembling state. This could lead to wrongly 1485 * assembled fragments. 1486 * 1487 * Clear outstanding fragment when selecting a new 1488 * alternate setting. 1489 */ 1490 spin_lock_irqsave(&data->rxlock, flags); 1491 kfree_skb(data->sco_skb); 1492 data->sco_skb = NULL; 1493 spin_unlock_irqrestore(&data->rxlock, flags); 1494 1495 if (__set_isoc_interface(hdev, new_alts) < 0) 1496 return; 1497 } 1498 1499 if (!test_and_set_bit(BTUSB_ISOC_RUNNING, &data->flags)) { 1500 if (btusb_submit_isoc_urb(hdev, GFP_KERNEL) < 0) 1501 clear_bit(BTUSB_ISOC_RUNNING, &data->flags); 1502 else 1503 btusb_submit_isoc_urb(hdev, GFP_KERNEL); 1504 } 1505 } else { 1506 clear_bit(BTUSB_ISOC_RUNNING, &data->flags); 1507 usb_kill_anchored_urbs(&data->isoc_anchor); 1508 1509 __set_isoc_interface(hdev, 0); 1510 if (test_and_clear_bit(BTUSB_DID_ISO_RESUME, &data->flags)) 1511 usb_autopm_put_interface(data->isoc ? data->isoc : data->intf); 1512 } 1513 } 1514 1515 static void btusb_waker(struct work_struct *work) 1516 { 1517 struct btusb_data *data = container_of(work, struct btusb_data, waker); 1518 int err; 1519 1520 err = usb_autopm_get_interface(data->intf); 1521 if (err < 0) 1522 return; 1523 1524 usb_autopm_put_interface(data->intf); 1525 } 1526 1527 static int btusb_setup_bcm92035(struct hci_dev *hdev) 1528 { 1529 struct sk_buff *skb; 1530 u8 val = 0x00; 1531 1532 BT_DBG("%s", hdev->name); 1533 1534 skb = __hci_cmd_sync(hdev, 0xfc3b, 1, &val, HCI_INIT_TIMEOUT); 1535 if (IS_ERR(skb)) 1536 bt_dev_err(hdev, "BCM92035 command failed (%ld)", PTR_ERR(skb)); 1537 else 1538 kfree_skb(skb); 1539 1540 return 0; 1541 } 1542 1543 static int btusb_setup_csr(struct hci_dev *hdev) 1544 { 1545 struct hci_rp_read_local_version *rp; 1546 struct sk_buff *skb; 1547 1548 BT_DBG("%s", hdev->name); 1549 1550 skb = __hci_cmd_sync(hdev, HCI_OP_READ_LOCAL_VERSION, 0, NULL, 1551 HCI_INIT_TIMEOUT); 1552 if (IS_ERR(skb)) { 1553 int err = PTR_ERR(skb); 1554 bt_dev_err(hdev, "CSR: Local version failed (%d)", err); 1555 return err; 1556 } 1557 1558 if (skb->len != sizeof(struct hci_rp_read_local_version)) { 1559 bt_dev_err(hdev, "CSR: Local version length mismatch"); 1560 kfree_skb(skb); 1561 return -EIO; 1562 } 1563 1564 rp = (struct hci_rp_read_local_version *)skb->data; 1565 1566 /* Detect controllers which aren't real CSR ones. */ 1567 if (le16_to_cpu(rp->manufacturer) != 10 || 1568 le16_to_cpu(rp->lmp_subver) == 0x0c5c) { 1569 /* Clear the reset quirk since this is not an actual 1570 * early Bluetooth 1.1 device from CSR. 1571 */ 1572 clear_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks); 1573 1574 /* These fake CSR controllers have all a broken 1575 * stored link key handling and so just disable it. 1576 */ 1577 set_bit(HCI_QUIRK_BROKEN_STORED_LINK_KEY, &hdev->quirks); 1578 } 1579 1580 kfree_skb(skb); 1581 1582 return 0; 1583 } 1584 1585 static const struct firmware *btusb_setup_intel_get_fw(struct hci_dev *hdev, 1586 struct intel_version *ver) 1587 { 1588 const struct firmware *fw; 1589 char fwname[64]; 1590 int ret; 1591 1592 snprintf(fwname, sizeof(fwname), 1593 "intel/ibt-hw-%x.%x.%x-fw-%x.%x.%x.%x.%x.bseq", 1594 ver->hw_platform, ver->hw_variant, ver->hw_revision, 1595 ver->fw_variant, ver->fw_revision, ver->fw_build_num, 1596 ver->fw_build_ww, ver->fw_build_yy); 1597 1598 ret = request_firmware(&fw, fwname, &hdev->dev); 1599 if (ret < 0) { 1600 if (ret == -EINVAL) { 1601 bt_dev_err(hdev, "Intel firmware file request failed (%d)", 1602 ret); 1603 return NULL; 1604 } 1605 1606 bt_dev_err(hdev, "failed to open Intel firmware file: %s (%d)", 1607 fwname, ret); 1608 1609 /* If the correct firmware patch file is not found, use the 1610 * default firmware patch file instead 1611 */ 1612 snprintf(fwname, sizeof(fwname), "intel/ibt-hw-%x.%x.bseq", 1613 ver->hw_platform, ver->hw_variant); 1614 if (request_firmware(&fw, fwname, &hdev->dev) < 0) { 1615 bt_dev_err(hdev, "failed to open default fw file: %s", 1616 fwname); 1617 return NULL; 1618 } 1619 } 1620 1621 bt_dev_info(hdev, "Intel Bluetooth firmware file: %s", fwname); 1622 1623 return fw; 1624 } 1625 1626 static int btusb_setup_intel_patching(struct hci_dev *hdev, 1627 const struct firmware *fw, 1628 const u8 **fw_ptr, int *disable_patch) 1629 { 1630 struct sk_buff *skb; 1631 struct hci_command_hdr *cmd; 1632 const u8 *cmd_param; 1633 struct hci_event_hdr *evt = NULL; 1634 const u8 *evt_param = NULL; 1635 int remain = fw->size - (*fw_ptr - fw->data); 1636 1637 /* The first byte indicates the types of the patch command or event. 1638 * 0x01 means HCI command and 0x02 is HCI event. If the first bytes 1639 * in the current firmware buffer doesn't start with 0x01 or 1640 * the size of remain buffer is smaller than HCI command header, 1641 * the firmware file is corrupted and it should stop the patching 1642 * process. 1643 */ 1644 if (remain > HCI_COMMAND_HDR_SIZE && *fw_ptr[0] != 0x01) { 1645 bt_dev_err(hdev, "Intel fw corrupted: invalid cmd read"); 1646 return -EINVAL; 1647 } 1648 (*fw_ptr)++; 1649 remain--; 1650 1651 cmd = (struct hci_command_hdr *)(*fw_ptr); 1652 *fw_ptr += sizeof(*cmd); 1653 remain -= sizeof(*cmd); 1654 1655 /* Ensure that the remain firmware data is long enough than the length 1656 * of command parameter. If not, the firmware file is corrupted. 1657 */ 1658 if (remain < cmd->plen) { 1659 bt_dev_err(hdev, "Intel fw corrupted: invalid cmd len"); 1660 return -EFAULT; 1661 } 1662 1663 /* If there is a command that loads a patch in the firmware 1664 * file, then enable the patch upon success, otherwise just 1665 * disable the manufacturer mode, for example patch activation 1666 * is not required when the default firmware patch file is used 1667 * because there are no patch data to load. 1668 */ 1669 if (*disable_patch && le16_to_cpu(cmd->opcode) == 0xfc8e) 1670 *disable_patch = 0; 1671 1672 cmd_param = *fw_ptr; 1673 *fw_ptr += cmd->plen; 1674 remain -= cmd->plen; 1675 1676 /* This reads the expected events when the above command is sent to the 1677 * device. Some vendor commands expects more than one events, for 1678 * example command status event followed by vendor specific event. 1679 * For this case, it only keeps the last expected event. so the command 1680 * can be sent with __hci_cmd_sync_ev() which returns the sk_buff of 1681 * last expected event. 1682 */ 1683 while (remain > HCI_EVENT_HDR_SIZE && *fw_ptr[0] == 0x02) { 1684 (*fw_ptr)++; 1685 remain--; 1686 1687 evt = (struct hci_event_hdr *)(*fw_ptr); 1688 *fw_ptr += sizeof(*evt); 1689 remain -= sizeof(*evt); 1690 1691 if (remain < evt->plen) { 1692 bt_dev_err(hdev, "Intel fw corrupted: invalid evt len"); 1693 return -EFAULT; 1694 } 1695 1696 evt_param = *fw_ptr; 1697 *fw_ptr += evt->plen; 1698 remain -= evt->plen; 1699 } 1700 1701 /* Every HCI commands in the firmware file has its correspond event. 1702 * If event is not found or remain is smaller than zero, the firmware 1703 * file is corrupted. 1704 */ 1705 if (!evt || !evt_param || remain < 0) { 1706 bt_dev_err(hdev, "Intel fw corrupted: invalid evt read"); 1707 return -EFAULT; 1708 } 1709 1710 skb = __hci_cmd_sync_ev(hdev, le16_to_cpu(cmd->opcode), cmd->plen, 1711 cmd_param, evt->evt, HCI_INIT_TIMEOUT); 1712 if (IS_ERR(skb)) { 1713 bt_dev_err(hdev, "sending Intel patch command (0x%4.4x) failed (%ld)", 1714 cmd->opcode, PTR_ERR(skb)); 1715 return PTR_ERR(skb); 1716 } 1717 1718 /* It ensures that the returned event matches the event data read from 1719 * the firmware file. At fist, it checks the length and then 1720 * the contents of the event. 1721 */ 1722 if (skb->len != evt->plen) { 1723 bt_dev_err(hdev, "mismatch event length (opcode 0x%4.4x)", 1724 le16_to_cpu(cmd->opcode)); 1725 kfree_skb(skb); 1726 return -EFAULT; 1727 } 1728 1729 if (memcmp(skb->data, evt_param, evt->plen)) { 1730 bt_dev_err(hdev, "mismatch event parameter (opcode 0x%4.4x)", 1731 le16_to_cpu(cmd->opcode)); 1732 kfree_skb(skb); 1733 return -EFAULT; 1734 } 1735 kfree_skb(skb); 1736 1737 return 0; 1738 } 1739 1740 static int btusb_setup_intel(struct hci_dev *hdev) 1741 { 1742 struct sk_buff *skb; 1743 const struct firmware *fw; 1744 const u8 *fw_ptr; 1745 int disable_patch, err; 1746 struct intel_version ver; 1747 1748 BT_DBG("%s", hdev->name); 1749 1750 /* The controller has a bug with the first HCI command sent to it 1751 * returning number of completed commands as zero. This would stall the 1752 * command processing in the Bluetooth core. 1753 * 1754 * As a workaround, send HCI Reset command first which will reset the 1755 * number of completed commands and allow normal command processing 1756 * from now on. 1757 */ 1758 skb = __hci_cmd_sync(hdev, HCI_OP_RESET, 0, NULL, HCI_INIT_TIMEOUT); 1759 if (IS_ERR(skb)) { 1760 bt_dev_err(hdev, "sending initial HCI reset command failed (%ld)", 1761 PTR_ERR(skb)); 1762 return PTR_ERR(skb); 1763 } 1764 kfree_skb(skb); 1765 1766 /* Read Intel specific controller version first to allow selection of 1767 * which firmware file to load. 1768 * 1769 * The returned information are hardware variant and revision plus 1770 * firmware variant, revision and build number. 1771 */ 1772 err = btintel_read_version(hdev, &ver); 1773 if (err) 1774 return err; 1775 1776 bt_dev_info(hdev, "read Intel version: %02x%02x%02x%02x%02x%02x%02x%02x%02x", 1777 ver.hw_platform, ver.hw_variant, ver.hw_revision, 1778 ver.fw_variant, ver.fw_revision, ver.fw_build_num, 1779 ver.fw_build_ww, ver.fw_build_yy, ver.fw_patch_num); 1780 1781 /* fw_patch_num indicates the version of patch the device currently 1782 * have. If there is no patch data in the device, it is always 0x00. 1783 * So, if it is other than 0x00, no need to patch the device again. 1784 */ 1785 if (ver.fw_patch_num) { 1786 bt_dev_info(hdev, "Intel device is already patched. " 1787 "patch num: %02x", ver.fw_patch_num); 1788 goto complete; 1789 } 1790 1791 /* Opens the firmware patch file based on the firmware version read 1792 * from the controller. If it fails to open the matching firmware 1793 * patch file, it tries to open the default firmware patch file. 1794 * If no patch file is found, allow the device to operate without 1795 * a patch. 1796 */ 1797 fw = btusb_setup_intel_get_fw(hdev, &ver); 1798 if (!fw) 1799 goto complete; 1800 fw_ptr = fw->data; 1801 1802 /* Enable the manufacturer mode of the controller. 1803 * Only while this mode is enabled, the driver can download the 1804 * firmware patch data and configuration parameters. 1805 */ 1806 err = btintel_enter_mfg(hdev); 1807 if (err) { 1808 release_firmware(fw); 1809 return err; 1810 } 1811 1812 disable_patch = 1; 1813 1814 /* The firmware data file consists of list of Intel specific HCI 1815 * commands and its expected events. The first byte indicates the 1816 * type of the message, either HCI command or HCI event. 1817 * 1818 * It reads the command and its expected event from the firmware file, 1819 * and send to the controller. Once __hci_cmd_sync_ev() returns, 1820 * the returned event is compared with the event read from the firmware 1821 * file and it will continue until all the messages are downloaded to 1822 * the controller. 1823 * 1824 * Once the firmware patching is completed successfully, 1825 * the manufacturer mode is disabled with reset and activating the 1826 * downloaded patch. 1827 * 1828 * If the firmware patching fails, the manufacturer mode is 1829 * disabled with reset and deactivating the patch. 1830 * 1831 * If the default patch file is used, no reset is done when disabling 1832 * the manufacturer. 1833 */ 1834 while (fw->size > fw_ptr - fw->data) { 1835 int ret; 1836 1837 ret = btusb_setup_intel_patching(hdev, fw, &fw_ptr, 1838 &disable_patch); 1839 if (ret < 0) 1840 goto exit_mfg_deactivate; 1841 } 1842 1843 release_firmware(fw); 1844 1845 if (disable_patch) 1846 goto exit_mfg_disable; 1847 1848 /* Patching completed successfully and disable the manufacturer mode 1849 * with reset and activate the downloaded firmware patches. 1850 */ 1851 err = btintel_exit_mfg(hdev, true, true); 1852 if (err) 1853 return err; 1854 1855 bt_dev_info(hdev, "Intel firmware patch completed and activated"); 1856 1857 goto complete; 1858 1859 exit_mfg_disable: 1860 /* Disable the manufacturer mode without reset */ 1861 err = btintel_exit_mfg(hdev, false, false); 1862 if (err) 1863 return err; 1864 1865 bt_dev_info(hdev, "Intel firmware patch completed"); 1866 1867 goto complete; 1868 1869 exit_mfg_deactivate: 1870 release_firmware(fw); 1871 1872 /* Patching failed. Disable the manufacturer mode with reset and 1873 * deactivate the downloaded firmware patches. 1874 */ 1875 err = btintel_exit_mfg(hdev, true, false); 1876 if (err) 1877 return err; 1878 1879 bt_dev_info(hdev, "Intel firmware patch completed and deactivated"); 1880 1881 complete: 1882 /* Set the event mask for Intel specific vendor events. This enables 1883 * a few extra events that are useful during general operation. 1884 */ 1885 btintel_set_event_mask_mfg(hdev, false); 1886 1887 btintel_check_bdaddr(hdev); 1888 return 0; 1889 } 1890 1891 static int inject_cmd_complete(struct hci_dev *hdev, __u16 opcode) 1892 { 1893 struct sk_buff *skb; 1894 struct hci_event_hdr *hdr; 1895 struct hci_ev_cmd_complete *evt; 1896 1897 skb = bt_skb_alloc(sizeof(*hdr) + sizeof(*evt) + 1, GFP_KERNEL); 1898 if (!skb) 1899 return -ENOMEM; 1900 1901 hdr = skb_put(skb, sizeof(*hdr)); 1902 hdr->evt = HCI_EV_CMD_COMPLETE; 1903 hdr->plen = sizeof(*evt) + 1; 1904 1905 evt = skb_put(skb, sizeof(*evt)); 1906 evt->ncmd = 0x01; 1907 evt->opcode = cpu_to_le16(opcode); 1908 1909 skb_put_u8(skb, 0x00); 1910 1911 hci_skb_pkt_type(skb) = HCI_EVENT_PKT; 1912 1913 return hci_recv_frame(hdev, skb); 1914 } 1915 1916 static int btusb_recv_bulk_intel(struct btusb_data *data, void *buffer, 1917 int count) 1918 { 1919 /* When the device is in bootloader mode, then it can send 1920 * events via the bulk endpoint. These events are treated the 1921 * same way as the ones received from the interrupt endpoint. 1922 */ 1923 if (test_bit(BTUSB_BOOTLOADER, &data->flags)) 1924 return btusb_recv_intr(data, buffer, count); 1925 1926 return btusb_recv_bulk(data, buffer, count); 1927 } 1928 1929 static void btusb_intel_bootup(struct btusb_data *data, const void *ptr, 1930 unsigned int len) 1931 { 1932 const struct intel_bootup *evt = ptr; 1933 1934 if (len != sizeof(*evt)) 1935 return; 1936 1937 if (test_and_clear_bit(BTUSB_BOOTING, &data->flags)) { 1938 smp_mb__after_atomic(); 1939 wake_up_bit(&data->flags, BTUSB_BOOTING); 1940 } 1941 } 1942 1943 static void btusb_intel_secure_send_result(struct btusb_data *data, 1944 const void *ptr, unsigned int len) 1945 { 1946 const struct intel_secure_send_result *evt = ptr; 1947 1948 if (len != sizeof(*evt)) 1949 return; 1950 1951 if (evt->result) 1952 set_bit(BTUSB_FIRMWARE_FAILED, &data->flags); 1953 1954 if (test_and_clear_bit(BTUSB_DOWNLOADING, &data->flags) && 1955 test_bit(BTUSB_FIRMWARE_LOADED, &data->flags)) { 1956 smp_mb__after_atomic(); 1957 wake_up_bit(&data->flags, BTUSB_DOWNLOADING); 1958 } 1959 } 1960 1961 static int btusb_recv_event_intel(struct hci_dev *hdev, struct sk_buff *skb) 1962 { 1963 struct btusb_data *data = hci_get_drvdata(hdev); 1964 1965 if (test_bit(BTUSB_BOOTLOADER, &data->flags)) { 1966 struct hci_event_hdr *hdr = (void *)skb->data; 1967 1968 if (skb->len > HCI_EVENT_HDR_SIZE && hdr->evt == 0xff && 1969 hdr->plen > 0) { 1970 const void *ptr = skb->data + HCI_EVENT_HDR_SIZE + 1; 1971 unsigned int len = skb->len - HCI_EVENT_HDR_SIZE - 1; 1972 1973 switch (skb->data[2]) { 1974 case 0x02: 1975 /* When switching to the operational firmware 1976 * the device sends a vendor specific event 1977 * indicating that the bootup completed. 1978 */ 1979 btusb_intel_bootup(data, ptr, len); 1980 break; 1981 case 0x06: 1982 /* When the firmware loading completes the 1983 * device sends out a vendor specific event 1984 * indicating the result of the firmware 1985 * loading. 1986 */ 1987 btusb_intel_secure_send_result(data, ptr, len); 1988 break; 1989 } 1990 } 1991 } 1992 1993 return hci_recv_frame(hdev, skb); 1994 } 1995 1996 static int btusb_send_frame_intel(struct hci_dev *hdev, struct sk_buff *skb) 1997 { 1998 struct btusb_data *data = hci_get_drvdata(hdev); 1999 struct urb *urb; 2000 2001 BT_DBG("%s", hdev->name); 2002 2003 switch (hci_skb_pkt_type(skb)) { 2004 case HCI_COMMAND_PKT: 2005 if (test_bit(BTUSB_BOOTLOADER, &data->flags)) { 2006 struct hci_command_hdr *cmd = (void *)skb->data; 2007 __u16 opcode = le16_to_cpu(cmd->opcode); 2008 2009 /* When in bootloader mode and the command 0xfc09 2010 * is received, it needs to be send down the 2011 * bulk endpoint. So allocate a bulk URB instead. 2012 */ 2013 if (opcode == 0xfc09) 2014 urb = alloc_bulk_urb(hdev, skb); 2015 else 2016 urb = alloc_ctrl_urb(hdev, skb); 2017 2018 /* When the 0xfc01 command is issued to boot into 2019 * the operational firmware, it will actually not 2020 * send a command complete event. To keep the flow 2021 * control working inject that event here. 2022 */ 2023 if (opcode == 0xfc01) 2024 inject_cmd_complete(hdev, opcode); 2025 } else { 2026 urb = alloc_ctrl_urb(hdev, skb); 2027 } 2028 if (IS_ERR(urb)) 2029 return PTR_ERR(urb); 2030 2031 hdev->stat.cmd_tx++; 2032 return submit_or_queue_tx_urb(hdev, urb); 2033 2034 case HCI_ACLDATA_PKT: 2035 urb = alloc_bulk_urb(hdev, skb); 2036 if (IS_ERR(urb)) 2037 return PTR_ERR(urb); 2038 2039 hdev->stat.acl_tx++; 2040 return submit_or_queue_tx_urb(hdev, urb); 2041 2042 case HCI_SCODATA_PKT: 2043 if (hci_conn_num(hdev, SCO_LINK) < 1) 2044 return -ENODEV; 2045 2046 urb = alloc_isoc_urb(hdev, skb); 2047 if (IS_ERR(urb)) 2048 return PTR_ERR(urb); 2049 2050 hdev->stat.sco_tx++; 2051 return submit_tx_urb(hdev, urb); 2052 } 2053 2054 return -EILSEQ; 2055 } 2056 2057 static int btusb_setup_intel_new(struct hci_dev *hdev) 2058 { 2059 struct btusb_data *data = hci_get_drvdata(hdev); 2060 struct intel_version ver; 2061 struct intel_boot_params params; 2062 const struct firmware *fw; 2063 u32 boot_param; 2064 char fwname[64]; 2065 ktime_t calltime, delta, rettime; 2066 unsigned long long duration; 2067 int err; 2068 2069 BT_DBG("%s", hdev->name); 2070 2071 /* Set the default boot parameter to 0x0 and it is updated to 2072 * SKU specific boot parameter after reading Intel_Write_Boot_Params 2073 * command while downloading the firmware. 2074 */ 2075 boot_param = 0x00000000; 2076 2077 calltime = ktime_get(); 2078 2079 /* Read the Intel version information to determine if the device 2080 * is in bootloader mode or if it already has operational firmware 2081 * loaded. 2082 */ 2083 err = btintel_read_version(hdev, &ver); 2084 if (err) 2085 return err; 2086 2087 /* The hardware platform number has a fixed value of 0x37 and 2088 * for now only accept this single value. 2089 */ 2090 if (ver.hw_platform != 0x37) { 2091 bt_dev_err(hdev, "Unsupported Intel hardware platform (%u)", 2092 ver.hw_platform); 2093 return -EINVAL; 2094 } 2095 2096 /* Check for supported iBT hardware variants of this firmware 2097 * loading method. 2098 * 2099 * This check has been put in place to ensure correct forward 2100 * compatibility options when newer hardware variants come along. 2101 */ 2102 switch (ver.hw_variant) { 2103 case 0x0b: /* SfP */ 2104 case 0x0c: /* WsP */ 2105 case 0x11: /* JfP */ 2106 case 0x12: /* ThP */ 2107 case 0x13: /* HrP */ 2108 case 0x14: /* QnJ, IcP */ 2109 break; 2110 default: 2111 bt_dev_err(hdev, "Unsupported Intel hardware variant (%u)", 2112 ver.hw_variant); 2113 return -EINVAL; 2114 } 2115 2116 btintel_version_info(hdev, &ver); 2117 2118 /* The firmware variant determines if the device is in bootloader 2119 * mode or is running operational firmware. The value 0x06 identifies 2120 * the bootloader and the value 0x23 identifies the operational 2121 * firmware. 2122 * 2123 * When the operational firmware is already present, then only 2124 * the check for valid Bluetooth device address is needed. This 2125 * determines if the device will be added as configured or 2126 * unconfigured controller. 2127 * 2128 * It is not possible to use the Secure Boot Parameters in this 2129 * case since that command is only available in bootloader mode. 2130 */ 2131 if (ver.fw_variant == 0x23) { 2132 clear_bit(BTUSB_BOOTLOADER, &data->flags); 2133 btintel_check_bdaddr(hdev); 2134 return 0; 2135 } 2136 2137 /* If the device is not in bootloader mode, then the only possible 2138 * choice is to return an error and abort the device initialization. 2139 */ 2140 if (ver.fw_variant != 0x06) { 2141 bt_dev_err(hdev, "Unsupported Intel firmware variant (%u)", 2142 ver.fw_variant); 2143 return -ENODEV; 2144 } 2145 2146 /* Read the secure boot parameters to identify the operating 2147 * details of the bootloader. 2148 */ 2149 err = btintel_read_boot_params(hdev, ¶ms); 2150 if (err) 2151 return err; 2152 2153 /* It is required that every single firmware fragment is acknowledged 2154 * with a command complete event. If the boot parameters indicate 2155 * that this bootloader does not send them, then abort the setup. 2156 */ 2157 if (params.limited_cce != 0x00) { 2158 bt_dev_err(hdev, "Unsupported Intel firmware loading method (%u)", 2159 params.limited_cce); 2160 return -EINVAL; 2161 } 2162 2163 /* If the OTP has no valid Bluetooth device address, then there will 2164 * also be no valid address for the operational firmware. 2165 */ 2166 if (!bacmp(¶ms.otp_bdaddr, BDADDR_ANY)) { 2167 bt_dev_info(hdev, "No device address configured"); 2168 set_bit(HCI_QUIRK_INVALID_BDADDR, &hdev->quirks); 2169 } 2170 2171 /* With this Intel bootloader only the hardware variant and device 2172 * revision information are used to select the right firmware for SfP 2173 * and WsP. 2174 * 2175 * The firmware filename is ibt-<hw_variant>-<dev_revid>.sfi. 2176 * 2177 * Currently the supported hardware variants are: 2178 * 11 (0x0b) for iBT3.0 (LnP/SfP) 2179 * 12 (0x0c) for iBT3.5 (WsP) 2180 * 2181 * For ThP/JfP and for future SKU's, the FW name varies based on HW 2182 * variant, HW revision and FW revision, as these are dependent on CNVi 2183 * and RF Combination. 2184 * 2185 * 17 (0x11) for iBT3.5 (JfP) 2186 * 18 (0x12) for iBT3.5 (ThP) 2187 * 2188 * The firmware file name for these will be 2189 * ibt-<hw_variant>-<hw_revision>-<fw_revision>.sfi. 2190 * 2191 */ 2192 switch (ver.hw_variant) { 2193 case 0x0b: /* SfP */ 2194 case 0x0c: /* WsP */ 2195 snprintf(fwname, sizeof(fwname), "intel/ibt-%u-%u.sfi", 2196 le16_to_cpu(ver.hw_variant), 2197 le16_to_cpu(params.dev_revid)); 2198 break; 2199 case 0x11: /* JfP */ 2200 case 0x12: /* ThP */ 2201 case 0x13: /* HrP */ 2202 case 0x14: /* QnJ, IcP */ 2203 snprintf(fwname, sizeof(fwname), "intel/ibt-%u-%u-%u.sfi", 2204 le16_to_cpu(ver.hw_variant), 2205 le16_to_cpu(ver.hw_revision), 2206 le16_to_cpu(ver.fw_revision)); 2207 break; 2208 default: 2209 bt_dev_err(hdev, "Unsupported Intel firmware naming"); 2210 return -EINVAL; 2211 } 2212 2213 err = request_firmware(&fw, fwname, &hdev->dev); 2214 if (err < 0) { 2215 bt_dev_err(hdev, "Failed to load Intel firmware file (%d)", err); 2216 return err; 2217 } 2218 2219 bt_dev_info(hdev, "Found device firmware: %s", fwname); 2220 2221 /* Save the DDC file name for later use to apply once the firmware 2222 * downloading is done. 2223 */ 2224 switch (ver.hw_variant) { 2225 case 0x0b: /* SfP */ 2226 case 0x0c: /* WsP */ 2227 snprintf(fwname, sizeof(fwname), "intel/ibt-%u-%u.ddc", 2228 le16_to_cpu(ver.hw_variant), 2229 le16_to_cpu(params.dev_revid)); 2230 break; 2231 case 0x11: /* JfP */ 2232 case 0x12: /* ThP */ 2233 case 0x13: /* HrP */ 2234 case 0x14: /* QnJ, IcP */ 2235 snprintf(fwname, sizeof(fwname), "intel/ibt-%u-%u-%u.ddc", 2236 le16_to_cpu(ver.hw_variant), 2237 le16_to_cpu(ver.hw_revision), 2238 le16_to_cpu(ver.fw_revision)); 2239 break; 2240 default: 2241 bt_dev_err(hdev, "Unsupported Intel firmware naming"); 2242 return -EINVAL; 2243 } 2244 2245 if (fw->size < 644) { 2246 bt_dev_err(hdev, "Invalid size of firmware file (%zu)", 2247 fw->size); 2248 err = -EBADF; 2249 goto done; 2250 } 2251 2252 set_bit(BTUSB_DOWNLOADING, &data->flags); 2253 2254 /* Start firmware downloading and get boot parameter */ 2255 err = btintel_download_firmware(hdev, fw, &boot_param); 2256 if (err < 0) 2257 goto done; 2258 2259 set_bit(BTUSB_FIRMWARE_LOADED, &data->flags); 2260 2261 bt_dev_info(hdev, "Waiting for firmware download to complete"); 2262 2263 /* Before switching the device into operational mode and with that 2264 * booting the loaded firmware, wait for the bootloader notification 2265 * that all fragments have been successfully received. 2266 * 2267 * When the event processing receives the notification, then the 2268 * BTUSB_DOWNLOADING flag will be cleared. 2269 * 2270 * The firmware loading should not take longer than 5 seconds 2271 * and thus just timeout if that happens and fail the setup 2272 * of this device. 2273 */ 2274 err = wait_on_bit_timeout(&data->flags, BTUSB_DOWNLOADING, 2275 TASK_INTERRUPTIBLE, 2276 msecs_to_jiffies(5000)); 2277 if (err == -EINTR) { 2278 bt_dev_err(hdev, "Firmware loading interrupted"); 2279 goto done; 2280 } 2281 2282 if (err) { 2283 bt_dev_err(hdev, "Firmware loading timeout"); 2284 err = -ETIMEDOUT; 2285 goto done; 2286 } 2287 2288 if (test_bit(BTUSB_FIRMWARE_FAILED, &data->flags)) { 2289 bt_dev_err(hdev, "Firmware loading failed"); 2290 err = -ENOEXEC; 2291 goto done; 2292 } 2293 2294 rettime = ktime_get(); 2295 delta = ktime_sub(rettime, calltime); 2296 duration = (unsigned long long) ktime_to_ns(delta) >> 10; 2297 2298 bt_dev_info(hdev, "Firmware loaded in %llu usecs", duration); 2299 2300 done: 2301 release_firmware(fw); 2302 2303 if (err < 0) 2304 return err; 2305 2306 calltime = ktime_get(); 2307 2308 set_bit(BTUSB_BOOTING, &data->flags); 2309 2310 err = btintel_send_intel_reset(hdev, boot_param); 2311 if (err) 2312 return err; 2313 2314 /* The bootloader will not indicate when the device is ready. This 2315 * is done by the operational firmware sending bootup notification. 2316 * 2317 * Booting into operational firmware should not take longer than 2318 * 1 second. However if that happens, then just fail the setup 2319 * since something went wrong. 2320 */ 2321 bt_dev_info(hdev, "Waiting for device to boot"); 2322 2323 err = wait_on_bit_timeout(&data->flags, BTUSB_BOOTING, 2324 TASK_INTERRUPTIBLE, 2325 msecs_to_jiffies(1000)); 2326 2327 if (err == -EINTR) { 2328 bt_dev_err(hdev, "Device boot interrupted"); 2329 return -EINTR; 2330 } 2331 2332 if (err) { 2333 bt_dev_err(hdev, "Device boot timeout"); 2334 return -ETIMEDOUT; 2335 } 2336 2337 rettime = ktime_get(); 2338 delta = ktime_sub(rettime, calltime); 2339 duration = (unsigned long long) ktime_to_ns(delta) >> 10; 2340 2341 bt_dev_info(hdev, "Device booted in %llu usecs", duration); 2342 2343 clear_bit(BTUSB_BOOTLOADER, &data->flags); 2344 2345 /* Once the device is running in operational mode, it needs to apply 2346 * the device configuration (DDC) parameters. 2347 * 2348 * The device can work without DDC parameters, so even if it fails 2349 * to load the file, no need to fail the setup. 2350 */ 2351 btintel_load_ddc_config(hdev, fwname); 2352 2353 /* Set the event mask for Intel specific vendor events. This enables 2354 * a few extra events that are useful during general operation. It 2355 * does not enable any debugging related events. 2356 * 2357 * The device will function correctly without these events enabled 2358 * and thus no need to fail the setup. 2359 */ 2360 btintel_set_event_mask(hdev, false); 2361 2362 return 0; 2363 } 2364 2365 static int btusb_shutdown_intel(struct hci_dev *hdev) 2366 { 2367 struct sk_buff *skb; 2368 long ret; 2369 2370 /* In the shutdown sequence where Bluetooth is turned off followed 2371 * by WiFi being turned off, turning WiFi back on causes issue with 2372 * the RF calibration. 2373 * 2374 * To ensure that any RF activity has been stopped, issue HCI Reset 2375 * command to clear all ongoing activity including advertising, 2376 * scanning etc. 2377 */ 2378 skb = __hci_cmd_sync(hdev, HCI_OP_RESET, 0, NULL, HCI_INIT_TIMEOUT); 2379 if (IS_ERR(skb)) { 2380 ret = PTR_ERR(skb); 2381 bt_dev_err(hdev, "HCI reset during shutdown failed"); 2382 return ret; 2383 } 2384 kfree_skb(skb); 2385 2386 /* Some platforms have an issue with BT LED when the interface is 2387 * down or BT radio is turned off, which takes 5 seconds to BT LED 2388 * goes off. This command turns off the BT LED immediately. 2389 */ 2390 skb = __hci_cmd_sync(hdev, 0xfc3f, 0, NULL, HCI_INIT_TIMEOUT); 2391 if (IS_ERR(skb)) { 2392 ret = PTR_ERR(skb); 2393 bt_dev_err(hdev, "turning off Intel device LED failed"); 2394 return ret; 2395 } 2396 kfree_skb(skb); 2397 2398 return 0; 2399 } 2400 2401 #ifdef CONFIG_PM 2402 /* Configure an out-of-band gpio as wake-up pin, if specified in device tree */ 2403 static int marvell_config_oob_wake(struct hci_dev *hdev) 2404 { 2405 struct sk_buff *skb; 2406 struct btusb_data *data = hci_get_drvdata(hdev); 2407 struct device *dev = &data->udev->dev; 2408 u16 pin, gap, opcode; 2409 int ret; 2410 u8 cmd[5]; 2411 2412 /* Move on if no wakeup pin specified */ 2413 if (of_property_read_u16(dev->of_node, "marvell,wakeup-pin", &pin) || 2414 of_property_read_u16(dev->of_node, "marvell,wakeup-gap-ms", &gap)) 2415 return 0; 2416 2417 /* Vendor specific command to configure a GPIO as wake-up pin */ 2418 opcode = hci_opcode_pack(0x3F, 0x59); 2419 cmd[0] = opcode & 0xFF; 2420 cmd[1] = opcode >> 8; 2421 cmd[2] = 2; /* length of parameters that follow */ 2422 cmd[3] = pin; 2423 cmd[4] = gap; /* time in ms, for which wakeup pin should be asserted */ 2424 2425 skb = bt_skb_alloc(sizeof(cmd), GFP_KERNEL); 2426 if (!skb) { 2427 bt_dev_err(hdev, "%s: No memory\n", __func__); 2428 return -ENOMEM; 2429 } 2430 2431 skb_put_data(skb, cmd, sizeof(cmd)); 2432 hci_skb_pkt_type(skb) = HCI_COMMAND_PKT; 2433 2434 ret = btusb_send_frame(hdev, skb); 2435 if (ret) { 2436 bt_dev_err(hdev, "%s: configuration failed\n", __func__); 2437 kfree_skb(skb); 2438 return ret; 2439 } 2440 2441 return 0; 2442 } 2443 #endif 2444 2445 static int btusb_set_bdaddr_marvell(struct hci_dev *hdev, 2446 const bdaddr_t *bdaddr) 2447 { 2448 struct sk_buff *skb; 2449 u8 buf[8]; 2450 long ret; 2451 2452 buf[0] = 0xfe; 2453 buf[1] = sizeof(bdaddr_t); 2454 memcpy(buf + 2, bdaddr, sizeof(bdaddr_t)); 2455 2456 skb = __hci_cmd_sync(hdev, 0xfc22, sizeof(buf), buf, HCI_INIT_TIMEOUT); 2457 if (IS_ERR(skb)) { 2458 ret = PTR_ERR(skb); 2459 bt_dev_err(hdev, "changing Marvell device address failed (%ld)", 2460 ret); 2461 return ret; 2462 } 2463 kfree_skb(skb); 2464 2465 return 0; 2466 } 2467 2468 static int btusb_set_bdaddr_ath3012(struct hci_dev *hdev, 2469 const bdaddr_t *bdaddr) 2470 { 2471 struct sk_buff *skb; 2472 u8 buf[10]; 2473 long ret; 2474 2475 buf[0] = 0x01; 2476 buf[1] = 0x01; 2477 buf[2] = 0x00; 2478 buf[3] = sizeof(bdaddr_t); 2479 memcpy(buf + 4, bdaddr, sizeof(bdaddr_t)); 2480 2481 skb = __hci_cmd_sync(hdev, 0xfc0b, sizeof(buf), buf, HCI_INIT_TIMEOUT); 2482 if (IS_ERR(skb)) { 2483 ret = PTR_ERR(skb); 2484 bt_dev_err(hdev, "Change address command failed (%ld)", ret); 2485 return ret; 2486 } 2487 kfree_skb(skb); 2488 2489 return 0; 2490 } 2491 2492 #define QCA_DFU_PACKET_LEN 4096 2493 2494 #define QCA_GET_TARGET_VERSION 0x09 2495 #define QCA_CHECK_STATUS 0x05 2496 #define QCA_DFU_DOWNLOAD 0x01 2497 2498 #define QCA_SYSCFG_UPDATED 0x40 2499 #define QCA_PATCH_UPDATED 0x80 2500 #define QCA_DFU_TIMEOUT 3000 2501 2502 struct qca_version { 2503 __le32 rom_version; 2504 __le32 patch_version; 2505 __le32 ram_version; 2506 __le32 ref_clock; 2507 __u8 reserved[4]; 2508 } __packed; 2509 2510 struct qca_rampatch_version { 2511 __le16 rom_version; 2512 __le16 patch_version; 2513 } __packed; 2514 2515 struct qca_device_info { 2516 u32 rom_version; 2517 u8 rampatch_hdr; /* length of header in rampatch */ 2518 u8 nvm_hdr; /* length of header in NVM */ 2519 u8 ver_offset; /* offset of version structure in rampatch */ 2520 }; 2521 2522 static const struct qca_device_info qca_devices_table[] = { 2523 { 0x00000100, 20, 4, 10 }, /* Rome 1.0 */ 2524 { 0x00000101, 20, 4, 10 }, /* Rome 1.1 */ 2525 { 0x00000200, 28, 4, 18 }, /* Rome 2.0 */ 2526 { 0x00000201, 28, 4, 18 }, /* Rome 2.1 */ 2527 { 0x00000300, 28, 4, 18 }, /* Rome 3.0 */ 2528 { 0x00000302, 28, 4, 18 }, /* Rome 3.2 */ 2529 }; 2530 2531 static int btusb_qca_send_vendor_req(struct usb_device *udev, u8 request, 2532 void *data, u16 size) 2533 { 2534 int pipe, err; 2535 u8 *buf; 2536 2537 buf = kmalloc(size, GFP_KERNEL); 2538 if (!buf) 2539 return -ENOMEM; 2540 2541 /* Found some of USB hosts have IOT issues with ours so that we should 2542 * not wait until HCI layer is ready. 2543 */ 2544 pipe = usb_rcvctrlpipe(udev, 0); 2545 err = usb_control_msg(udev, pipe, request, USB_TYPE_VENDOR | USB_DIR_IN, 2546 0, 0, buf, size, USB_CTRL_SET_TIMEOUT); 2547 if (err < 0) { 2548 dev_err(&udev->dev, "Failed to access otp area (%d)", err); 2549 goto done; 2550 } 2551 2552 memcpy(data, buf, size); 2553 2554 done: 2555 kfree(buf); 2556 2557 return err; 2558 } 2559 2560 static int btusb_setup_qca_download_fw(struct hci_dev *hdev, 2561 const struct firmware *firmware, 2562 size_t hdr_size) 2563 { 2564 struct btusb_data *btdata = hci_get_drvdata(hdev); 2565 struct usb_device *udev = btdata->udev; 2566 size_t count, size, sent = 0; 2567 int pipe, len, err; 2568 u8 *buf; 2569 2570 buf = kmalloc(QCA_DFU_PACKET_LEN, GFP_KERNEL); 2571 if (!buf) 2572 return -ENOMEM; 2573 2574 count = firmware->size; 2575 2576 size = min_t(size_t, count, hdr_size); 2577 memcpy(buf, firmware->data, size); 2578 2579 /* USB patches should go down to controller through USB path 2580 * because binary format fits to go down through USB channel. 2581 * USB control path is for patching headers and USB bulk is for 2582 * patch body. 2583 */ 2584 pipe = usb_sndctrlpipe(udev, 0); 2585 err = usb_control_msg(udev, pipe, QCA_DFU_DOWNLOAD, USB_TYPE_VENDOR, 2586 0, 0, buf, size, USB_CTRL_SET_TIMEOUT); 2587 if (err < 0) { 2588 bt_dev_err(hdev, "Failed to send headers (%d)", err); 2589 goto done; 2590 } 2591 2592 sent += size; 2593 count -= size; 2594 2595 while (count) { 2596 size = min_t(size_t, count, QCA_DFU_PACKET_LEN); 2597 2598 memcpy(buf, firmware->data + sent, size); 2599 2600 pipe = usb_sndbulkpipe(udev, 0x02); 2601 err = usb_bulk_msg(udev, pipe, buf, size, &len, 2602 QCA_DFU_TIMEOUT); 2603 if (err < 0) { 2604 bt_dev_err(hdev, "Failed to send body at %zd of %zd (%d)", 2605 sent, firmware->size, err); 2606 break; 2607 } 2608 2609 if (size != len) { 2610 bt_dev_err(hdev, "Failed to get bulk buffer"); 2611 err = -EILSEQ; 2612 break; 2613 } 2614 2615 sent += size; 2616 count -= size; 2617 } 2618 2619 done: 2620 kfree(buf); 2621 return err; 2622 } 2623 2624 static int btusb_setup_qca_load_rampatch(struct hci_dev *hdev, 2625 struct qca_version *ver, 2626 const struct qca_device_info *info) 2627 { 2628 struct qca_rampatch_version *rver; 2629 const struct firmware *fw; 2630 u32 ver_rom, ver_patch; 2631 u16 rver_rom, rver_patch; 2632 char fwname[64]; 2633 int err; 2634 2635 ver_rom = le32_to_cpu(ver->rom_version); 2636 ver_patch = le32_to_cpu(ver->patch_version); 2637 2638 snprintf(fwname, sizeof(fwname), "qca/rampatch_usb_%08x.bin", ver_rom); 2639 2640 err = request_firmware(&fw, fwname, &hdev->dev); 2641 if (err) { 2642 bt_dev_err(hdev, "failed to request rampatch file: %s (%d)", 2643 fwname, err); 2644 return err; 2645 } 2646 2647 bt_dev_info(hdev, "using rampatch file: %s", fwname); 2648 2649 rver = (struct qca_rampatch_version *)(fw->data + info->ver_offset); 2650 rver_rom = le16_to_cpu(rver->rom_version); 2651 rver_patch = le16_to_cpu(rver->patch_version); 2652 2653 bt_dev_info(hdev, "QCA: patch rome 0x%x build 0x%x, " 2654 "firmware rome 0x%x build 0x%x", 2655 rver_rom, rver_patch, ver_rom, ver_patch); 2656 2657 if (rver_rom != ver_rom || rver_patch <= ver_patch) { 2658 bt_dev_err(hdev, "rampatch file version did not match with firmware"); 2659 err = -EINVAL; 2660 goto done; 2661 } 2662 2663 err = btusb_setup_qca_download_fw(hdev, fw, info->rampatch_hdr); 2664 2665 done: 2666 release_firmware(fw); 2667 2668 return err; 2669 } 2670 2671 static int btusb_setup_qca_load_nvm(struct hci_dev *hdev, 2672 struct qca_version *ver, 2673 const struct qca_device_info *info) 2674 { 2675 const struct firmware *fw; 2676 char fwname[64]; 2677 int err; 2678 2679 snprintf(fwname, sizeof(fwname), "qca/nvm_usb_%08x.bin", 2680 le32_to_cpu(ver->rom_version)); 2681 2682 err = request_firmware(&fw, fwname, &hdev->dev); 2683 if (err) { 2684 bt_dev_err(hdev, "failed to request NVM file: %s (%d)", 2685 fwname, err); 2686 return err; 2687 } 2688 2689 bt_dev_info(hdev, "using NVM file: %s", fwname); 2690 2691 err = btusb_setup_qca_download_fw(hdev, fw, info->nvm_hdr); 2692 2693 release_firmware(fw); 2694 2695 return err; 2696 } 2697 2698 /* identify the ROM version and check whether patches are needed */ 2699 static bool btusb_qca_need_patch(struct usb_device *udev) 2700 { 2701 struct qca_version ver; 2702 2703 if (btusb_qca_send_vendor_req(udev, QCA_GET_TARGET_VERSION, &ver, 2704 sizeof(ver)) < 0) 2705 return false; 2706 /* only low ROM versions need patches */ 2707 return !(le32_to_cpu(ver.rom_version) & ~0xffffU); 2708 } 2709 2710 static int btusb_setup_qca(struct hci_dev *hdev) 2711 { 2712 struct btusb_data *btdata = hci_get_drvdata(hdev); 2713 struct usb_device *udev = btdata->udev; 2714 const struct qca_device_info *info = NULL; 2715 struct qca_version ver; 2716 u32 ver_rom; 2717 u8 status; 2718 int i, err; 2719 2720 err = btusb_qca_send_vendor_req(udev, QCA_GET_TARGET_VERSION, &ver, 2721 sizeof(ver)); 2722 if (err < 0) 2723 return err; 2724 2725 ver_rom = le32_to_cpu(ver.rom_version); 2726 /* Don't care about high ROM versions */ 2727 if (ver_rom & ~0xffffU) 2728 return 0; 2729 2730 for (i = 0; i < ARRAY_SIZE(qca_devices_table); i++) { 2731 if (ver_rom == qca_devices_table[i].rom_version) 2732 info = &qca_devices_table[i]; 2733 } 2734 if (!info) { 2735 bt_dev_err(hdev, "don't support firmware rome 0x%x", ver_rom); 2736 return -ENODEV; 2737 } 2738 2739 err = btusb_qca_send_vendor_req(udev, QCA_CHECK_STATUS, &status, 2740 sizeof(status)); 2741 if (err < 0) 2742 return err; 2743 2744 if (!(status & QCA_PATCH_UPDATED)) { 2745 err = btusb_setup_qca_load_rampatch(hdev, &ver, info); 2746 if (err < 0) 2747 return err; 2748 } 2749 2750 if (!(status & QCA_SYSCFG_UPDATED)) { 2751 err = btusb_setup_qca_load_nvm(hdev, &ver, info); 2752 if (err < 0) 2753 return err; 2754 } 2755 2756 return 0; 2757 } 2758 2759 #ifdef CONFIG_BT_HCIBTUSB_BCM 2760 static inline int __set_diag_interface(struct hci_dev *hdev) 2761 { 2762 struct btusb_data *data = hci_get_drvdata(hdev); 2763 struct usb_interface *intf = data->diag; 2764 int i; 2765 2766 if (!data->diag) 2767 return -ENODEV; 2768 2769 data->diag_tx_ep = NULL; 2770 data->diag_rx_ep = NULL; 2771 2772 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) { 2773 struct usb_endpoint_descriptor *ep_desc; 2774 2775 ep_desc = &intf->cur_altsetting->endpoint[i].desc; 2776 2777 if (!data->diag_tx_ep && usb_endpoint_is_bulk_out(ep_desc)) { 2778 data->diag_tx_ep = ep_desc; 2779 continue; 2780 } 2781 2782 if (!data->diag_rx_ep && usb_endpoint_is_bulk_in(ep_desc)) { 2783 data->diag_rx_ep = ep_desc; 2784 continue; 2785 } 2786 } 2787 2788 if (!data->diag_tx_ep || !data->diag_rx_ep) { 2789 bt_dev_err(hdev, "invalid diagnostic descriptors"); 2790 return -ENODEV; 2791 } 2792 2793 return 0; 2794 } 2795 2796 static struct urb *alloc_diag_urb(struct hci_dev *hdev, bool enable) 2797 { 2798 struct btusb_data *data = hci_get_drvdata(hdev); 2799 struct sk_buff *skb; 2800 struct urb *urb; 2801 unsigned int pipe; 2802 2803 if (!data->diag_tx_ep) 2804 return ERR_PTR(-ENODEV); 2805 2806 urb = usb_alloc_urb(0, GFP_KERNEL); 2807 if (!urb) 2808 return ERR_PTR(-ENOMEM); 2809 2810 skb = bt_skb_alloc(2, GFP_KERNEL); 2811 if (!skb) { 2812 usb_free_urb(urb); 2813 return ERR_PTR(-ENOMEM); 2814 } 2815 2816 skb_put_u8(skb, 0xf0); 2817 skb_put_u8(skb, enable); 2818 2819 pipe = usb_sndbulkpipe(data->udev, data->diag_tx_ep->bEndpointAddress); 2820 2821 usb_fill_bulk_urb(urb, data->udev, pipe, 2822 skb->data, skb->len, btusb_tx_complete, skb); 2823 2824 skb->dev = (void *)hdev; 2825 2826 return urb; 2827 } 2828 2829 static int btusb_bcm_set_diag(struct hci_dev *hdev, bool enable) 2830 { 2831 struct btusb_data *data = hci_get_drvdata(hdev); 2832 struct urb *urb; 2833 2834 if (!data->diag) 2835 return -ENODEV; 2836 2837 if (!test_bit(HCI_RUNNING, &hdev->flags)) 2838 return -ENETDOWN; 2839 2840 urb = alloc_diag_urb(hdev, enable); 2841 if (IS_ERR(urb)) 2842 return PTR_ERR(urb); 2843 2844 return submit_or_queue_tx_urb(hdev, urb); 2845 } 2846 #endif 2847 2848 #ifdef CONFIG_PM 2849 static irqreturn_t btusb_oob_wake_handler(int irq, void *priv) 2850 { 2851 struct btusb_data *data = priv; 2852 2853 pm_wakeup_event(&data->udev->dev, 0); 2854 pm_system_wakeup(); 2855 2856 /* Disable only if not already disabled (keep it balanced) */ 2857 if (test_and_clear_bit(BTUSB_OOB_WAKE_ENABLED, &data->flags)) { 2858 disable_irq_nosync(irq); 2859 disable_irq_wake(irq); 2860 } 2861 return IRQ_HANDLED; 2862 } 2863 2864 static const struct of_device_id btusb_match_table[] = { 2865 { .compatible = "usb1286,204e" }, 2866 { } 2867 }; 2868 MODULE_DEVICE_TABLE(of, btusb_match_table); 2869 2870 /* Use an oob wakeup pin? */ 2871 static int btusb_config_oob_wake(struct hci_dev *hdev) 2872 { 2873 struct btusb_data *data = hci_get_drvdata(hdev); 2874 struct device *dev = &data->udev->dev; 2875 int irq, ret; 2876 2877 clear_bit(BTUSB_OOB_WAKE_ENABLED, &data->flags); 2878 2879 if (!of_match_device(btusb_match_table, dev)) 2880 return 0; 2881 2882 /* Move on if no IRQ specified */ 2883 irq = of_irq_get_byname(dev->of_node, "wakeup"); 2884 if (irq <= 0) { 2885 bt_dev_dbg(hdev, "%s: no OOB Wakeup IRQ in DT", __func__); 2886 return 0; 2887 } 2888 2889 ret = devm_request_irq(&hdev->dev, irq, btusb_oob_wake_handler, 2890 0, "OOB Wake-on-BT", data); 2891 if (ret) { 2892 bt_dev_err(hdev, "%s: IRQ request failed", __func__); 2893 return ret; 2894 } 2895 2896 ret = device_init_wakeup(dev, true); 2897 if (ret) { 2898 bt_dev_err(hdev, "%s: failed to init_wakeup", __func__); 2899 return ret; 2900 } 2901 2902 data->oob_wake_irq = irq; 2903 disable_irq(irq); 2904 bt_dev_info(hdev, "OOB Wake-on-BT configured at IRQ %u", irq); 2905 return 0; 2906 } 2907 #endif 2908 2909 static void btusb_check_needs_reset_resume(struct usb_interface *intf) 2910 { 2911 if (dmi_check_system(btusb_needs_reset_resume_table)) 2912 interface_to_usbdev(intf)->quirks |= USB_QUIRK_RESET_RESUME; 2913 } 2914 2915 static int btusb_probe(struct usb_interface *intf, 2916 const struct usb_device_id *id) 2917 { 2918 struct usb_endpoint_descriptor *ep_desc; 2919 struct btusb_data *data; 2920 struct hci_dev *hdev; 2921 unsigned ifnum_base; 2922 int i, err; 2923 2924 BT_DBG("intf %p id %p", intf, id); 2925 2926 /* interface numbers are hardcoded in the spec */ 2927 if (intf->cur_altsetting->desc.bInterfaceNumber != 0) { 2928 if (!(id->driver_info & BTUSB_IFNUM_2)) 2929 return -ENODEV; 2930 if (intf->cur_altsetting->desc.bInterfaceNumber != 2) 2931 return -ENODEV; 2932 } 2933 2934 ifnum_base = intf->cur_altsetting->desc.bInterfaceNumber; 2935 2936 if (!id->driver_info) { 2937 const struct usb_device_id *match; 2938 2939 match = usb_match_id(intf, blacklist_table); 2940 if (match) 2941 id = match; 2942 } 2943 2944 if (id->driver_info == BTUSB_IGNORE) 2945 return -ENODEV; 2946 2947 if (id->driver_info & BTUSB_ATH3012) { 2948 struct usb_device *udev = interface_to_usbdev(intf); 2949 2950 /* Old firmware would otherwise let ath3k driver load 2951 * patch and sysconfig files 2952 */ 2953 if (le16_to_cpu(udev->descriptor.bcdDevice) <= 0x0001 && 2954 !btusb_qca_need_patch(udev)) 2955 return -ENODEV; 2956 } 2957 2958 data = devm_kzalloc(&intf->dev, sizeof(*data), GFP_KERNEL); 2959 if (!data) 2960 return -ENOMEM; 2961 2962 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) { 2963 ep_desc = &intf->cur_altsetting->endpoint[i].desc; 2964 2965 if (!data->intr_ep && usb_endpoint_is_int_in(ep_desc)) { 2966 data->intr_ep = ep_desc; 2967 continue; 2968 } 2969 2970 if (!data->bulk_tx_ep && usb_endpoint_is_bulk_out(ep_desc)) { 2971 data->bulk_tx_ep = ep_desc; 2972 continue; 2973 } 2974 2975 if (!data->bulk_rx_ep && usb_endpoint_is_bulk_in(ep_desc)) { 2976 data->bulk_rx_ep = ep_desc; 2977 continue; 2978 } 2979 } 2980 2981 if (!data->intr_ep || !data->bulk_tx_ep || !data->bulk_rx_ep) 2982 return -ENODEV; 2983 2984 if (id->driver_info & BTUSB_AMP) { 2985 data->cmdreq_type = USB_TYPE_CLASS | 0x01; 2986 data->cmdreq = 0x2b; 2987 } else { 2988 data->cmdreq_type = USB_TYPE_CLASS; 2989 data->cmdreq = 0x00; 2990 } 2991 2992 data->udev = interface_to_usbdev(intf); 2993 data->intf = intf; 2994 2995 INIT_WORK(&data->work, btusb_work); 2996 INIT_WORK(&data->waker, btusb_waker); 2997 init_usb_anchor(&data->deferred); 2998 init_usb_anchor(&data->tx_anchor); 2999 spin_lock_init(&data->txlock); 3000 3001 init_usb_anchor(&data->intr_anchor); 3002 init_usb_anchor(&data->bulk_anchor); 3003 init_usb_anchor(&data->isoc_anchor); 3004 init_usb_anchor(&data->diag_anchor); 3005 spin_lock_init(&data->rxlock); 3006 3007 if (id->driver_info & BTUSB_INTEL_NEW) { 3008 data->recv_event = btusb_recv_event_intel; 3009 data->recv_bulk = btusb_recv_bulk_intel; 3010 set_bit(BTUSB_BOOTLOADER, &data->flags); 3011 } else { 3012 data->recv_event = hci_recv_frame; 3013 data->recv_bulk = btusb_recv_bulk; 3014 } 3015 3016 hdev = hci_alloc_dev(); 3017 if (!hdev) 3018 return -ENOMEM; 3019 3020 hdev->bus = HCI_USB; 3021 hci_set_drvdata(hdev, data); 3022 3023 if (id->driver_info & BTUSB_AMP) 3024 hdev->dev_type = HCI_AMP; 3025 else 3026 hdev->dev_type = HCI_PRIMARY; 3027 3028 data->hdev = hdev; 3029 3030 SET_HCIDEV_DEV(hdev, &intf->dev); 3031 3032 hdev->open = btusb_open; 3033 hdev->close = btusb_close; 3034 hdev->flush = btusb_flush; 3035 hdev->send = btusb_send_frame; 3036 hdev->notify = btusb_notify; 3037 3038 #ifdef CONFIG_PM 3039 err = btusb_config_oob_wake(hdev); 3040 if (err) 3041 goto out_free_dev; 3042 3043 /* Marvell devices may need a specific chip configuration */ 3044 if (id->driver_info & BTUSB_MARVELL && data->oob_wake_irq) { 3045 err = marvell_config_oob_wake(hdev); 3046 if (err) 3047 goto out_free_dev; 3048 } 3049 #endif 3050 if (id->driver_info & BTUSB_CW6622) 3051 set_bit(HCI_QUIRK_BROKEN_STORED_LINK_KEY, &hdev->quirks); 3052 3053 if (id->driver_info & BTUSB_BCM2045) 3054 set_bit(HCI_QUIRK_BROKEN_STORED_LINK_KEY, &hdev->quirks); 3055 3056 if (id->driver_info & BTUSB_BCM92035) 3057 hdev->setup = btusb_setup_bcm92035; 3058 3059 #ifdef CONFIG_BT_HCIBTUSB_BCM 3060 if (id->driver_info & BTUSB_BCM_PATCHRAM) { 3061 hdev->manufacturer = 15; 3062 hdev->setup = btbcm_setup_patchram; 3063 hdev->set_diag = btusb_bcm_set_diag; 3064 hdev->set_bdaddr = btbcm_set_bdaddr; 3065 3066 /* Broadcom LM_DIAG Interface numbers are hardcoded */ 3067 data->diag = usb_ifnum_to_if(data->udev, ifnum_base + 2); 3068 } 3069 3070 if (id->driver_info & BTUSB_BCM_APPLE) { 3071 hdev->manufacturer = 15; 3072 hdev->setup = btbcm_setup_apple; 3073 hdev->set_diag = btusb_bcm_set_diag; 3074 3075 /* Broadcom LM_DIAG Interface numbers are hardcoded */ 3076 data->diag = usb_ifnum_to_if(data->udev, ifnum_base + 2); 3077 } 3078 #endif 3079 3080 if (id->driver_info & BTUSB_INTEL) { 3081 hdev->manufacturer = 2; 3082 hdev->setup = btusb_setup_intel; 3083 hdev->shutdown = btusb_shutdown_intel; 3084 hdev->set_diag = btintel_set_diag_mfg; 3085 hdev->set_bdaddr = btintel_set_bdaddr; 3086 set_bit(HCI_QUIRK_STRICT_DUPLICATE_FILTER, &hdev->quirks); 3087 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks); 3088 set_bit(HCI_QUIRK_NON_PERSISTENT_DIAG, &hdev->quirks); 3089 } 3090 3091 if (id->driver_info & BTUSB_INTEL_NEW) { 3092 hdev->manufacturer = 2; 3093 hdev->send = btusb_send_frame_intel; 3094 hdev->setup = btusb_setup_intel_new; 3095 hdev->hw_error = btintel_hw_error; 3096 hdev->set_diag = btintel_set_diag; 3097 hdev->set_bdaddr = btintel_set_bdaddr; 3098 set_bit(HCI_QUIRK_STRICT_DUPLICATE_FILTER, &hdev->quirks); 3099 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks); 3100 set_bit(HCI_QUIRK_NON_PERSISTENT_DIAG, &hdev->quirks); 3101 } 3102 3103 if (id->driver_info & BTUSB_MARVELL) 3104 hdev->set_bdaddr = btusb_set_bdaddr_marvell; 3105 3106 if (id->driver_info & BTUSB_SWAVE) { 3107 set_bit(HCI_QUIRK_FIXUP_INQUIRY_MODE, &hdev->quirks); 3108 set_bit(HCI_QUIRK_BROKEN_LOCAL_COMMANDS, &hdev->quirks); 3109 } 3110 3111 if (id->driver_info & BTUSB_INTEL_BOOT) { 3112 hdev->manufacturer = 2; 3113 set_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks); 3114 } 3115 3116 if (id->driver_info & BTUSB_ATH3012) { 3117 data->setup_on_usb = btusb_setup_qca; 3118 hdev->set_bdaddr = btusb_set_bdaddr_ath3012; 3119 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks); 3120 set_bit(HCI_QUIRK_STRICT_DUPLICATE_FILTER, &hdev->quirks); 3121 } 3122 3123 if (id->driver_info & BTUSB_QCA_ROME) { 3124 data->setup_on_usb = btusb_setup_qca; 3125 hdev->set_bdaddr = btusb_set_bdaddr_ath3012; 3126 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks); 3127 btusb_check_needs_reset_resume(intf); 3128 } 3129 3130 #ifdef CONFIG_BT_HCIBTUSB_RTL 3131 if (id->driver_info & BTUSB_REALTEK) { 3132 hdev->setup = btrtl_setup_realtek; 3133 3134 /* Realtek devices lose their updated firmware over suspend, 3135 * but the USB hub doesn't notice any status change. 3136 * Explicitly request a device reset on resume. 3137 */ 3138 interface_to_usbdev(intf)->quirks |= USB_QUIRK_RESET_RESUME; 3139 } 3140 #endif 3141 3142 if (id->driver_info & BTUSB_AMP) { 3143 /* AMP controllers do not support SCO packets */ 3144 data->isoc = NULL; 3145 } else { 3146 /* Interface orders are hardcoded in the specification */ 3147 data->isoc = usb_ifnum_to_if(data->udev, ifnum_base + 1); 3148 data->isoc_ifnum = ifnum_base + 1; 3149 } 3150 3151 if (!reset) 3152 set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks); 3153 3154 if (force_scofix || id->driver_info & BTUSB_WRONG_SCO_MTU) { 3155 if (!disable_scofix) 3156 set_bit(HCI_QUIRK_FIXUP_BUFFER_SIZE, &hdev->quirks); 3157 } 3158 3159 if (id->driver_info & BTUSB_BROKEN_ISOC) 3160 data->isoc = NULL; 3161 3162 if (id->driver_info & BTUSB_DIGIANSWER) { 3163 data->cmdreq_type = USB_TYPE_VENDOR; 3164 set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks); 3165 } 3166 3167 if (id->driver_info & BTUSB_CSR) { 3168 struct usb_device *udev = data->udev; 3169 u16 bcdDevice = le16_to_cpu(udev->descriptor.bcdDevice); 3170 3171 /* Old firmware would otherwise execute USB reset */ 3172 if (bcdDevice < 0x117) 3173 set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks); 3174 3175 /* Fake CSR devices with broken commands */ 3176 if (bcdDevice <= 0x100 || bcdDevice == 0x134) 3177 hdev->setup = btusb_setup_csr; 3178 3179 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks); 3180 } 3181 3182 if (id->driver_info & BTUSB_SNIFFER) { 3183 struct usb_device *udev = data->udev; 3184 3185 /* New sniffer firmware has crippled HCI interface */ 3186 if (le16_to_cpu(udev->descriptor.bcdDevice) > 0x997) 3187 set_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks); 3188 } 3189 3190 if (id->driver_info & BTUSB_INTEL_BOOT) { 3191 /* A bug in the bootloader causes that interrupt interface is 3192 * only enabled after receiving SetInterface(0, AltSetting=0). 3193 */ 3194 err = usb_set_interface(data->udev, 0, 0); 3195 if (err < 0) { 3196 BT_ERR("failed to set interface 0, alt 0 %d", err); 3197 goto out_free_dev; 3198 } 3199 } 3200 3201 if (data->isoc) { 3202 err = usb_driver_claim_interface(&btusb_driver, 3203 data->isoc, data); 3204 if (err < 0) 3205 goto out_free_dev; 3206 } 3207 3208 #ifdef CONFIG_BT_HCIBTUSB_BCM 3209 if (data->diag) { 3210 if (!usb_driver_claim_interface(&btusb_driver, 3211 data->diag, data)) 3212 __set_diag_interface(hdev); 3213 else 3214 data->diag = NULL; 3215 } 3216 #endif 3217 3218 if (enable_autosuspend) 3219 usb_enable_autosuspend(data->udev); 3220 3221 err = hci_register_dev(hdev); 3222 if (err < 0) 3223 goto out_free_dev; 3224 3225 usb_set_intfdata(intf, data); 3226 3227 return 0; 3228 3229 out_free_dev: 3230 hci_free_dev(hdev); 3231 return err; 3232 } 3233 3234 static void btusb_disconnect(struct usb_interface *intf) 3235 { 3236 struct btusb_data *data = usb_get_intfdata(intf); 3237 struct hci_dev *hdev; 3238 3239 BT_DBG("intf %p", intf); 3240 3241 if (!data) 3242 return; 3243 3244 hdev = data->hdev; 3245 usb_set_intfdata(data->intf, NULL); 3246 3247 if (data->isoc) 3248 usb_set_intfdata(data->isoc, NULL); 3249 3250 if (data->diag) 3251 usb_set_intfdata(data->diag, NULL); 3252 3253 hci_unregister_dev(hdev); 3254 3255 if (intf == data->intf) { 3256 if (data->isoc) 3257 usb_driver_release_interface(&btusb_driver, data->isoc); 3258 if (data->diag) 3259 usb_driver_release_interface(&btusb_driver, data->diag); 3260 } else if (intf == data->isoc) { 3261 if (data->diag) 3262 usb_driver_release_interface(&btusb_driver, data->diag); 3263 usb_driver_release_interface(&btusb_driver, data->intf); 3264 } else if (intf == data->diag) { 3265 usb_driver_release_interface(&btusb_driver, data->intf); 3266 if (data->isoc) 3267 usb_driver_release_interface(&btusb_driver, data->isoc); 3268 } 3269 3270 if (data->oob_wake_irq) 3271 device_init_wakeup(&data->udev->dev, false); 3272 3273 hci_free_dev(hdev); 3274 } 3275 3276 #ifdef CONFIG_PM 3277 static int btusb_suspend(struct usb_interface *intf, pm_message_t message) 3278 { 3279 struct btusb_data *data = usb_get_intfdata(intf); 3280 3281 BT_DBG("intf %p", intf); 3282 3283 if (data->suspend_count++) 3284 return 0; 3285 3286 spin_lock_irq(&data->txlock); 3287 if (!(PMSG_IS_AUTO(message) && data->tx_in_flight)) { 3288 set_bit(BTUSB_SUSPENDING, &data->flags); 3289 spin_unlock_irq(&data->txlock); 3290 } else { 3291 spin_unlock_irq(&data->txlock); 3292 data->suspend_count--; 3293 return -EBUSY; 3294 } 3295 3296 cancel_work_sync(&data->work); 3297 3298 btusb_stop_traffic(data); 3299 usb_kill_anchored_urbs(&data->tx_anchor); 3300 3301 if (data->oob_wake_irq && device_may_wakeup(&data->udev->dev)) { 3302 set_bit(BTUSB_OOB_WAKE_ENABLED, &data->flags); 3303 enable_irq_wake(data->oob_wake_irq); 3304 enable_irq(data->oob_wake_irq); 3305 } 3306 3307 return 0; 3308 } 3309 3310 static void play_deferred(struct btusb_data *data) 3311 { 3312 struct urb *urb; 3313 int err; 3314 3315 while ((urb = usb_get_from_anchor(&data->deferred))) { 3316 usb_anchor_urb(urb, &data->tx_anchor); 3317 3318 err = usb_submit_urb(urb, GFP_ATOMIC); 3319 if (err < 0) { 3320 if (err != -EPERM && err != -ENODEV) 3321 BT_ERR("%s urb %p submission failed (%d)", 3322 data->hdev->name, urb, -err); 3323 kfree(urb->setup_packet); 3324 usb_unanchor_urb(urb); 3325 usb_free_urb(urb); 3326 break; 3327 } 3328 3329 data->tx_in_flight++; 3330 usb_free_urb(urb); 3331 } 3332 3333 /* Cleanup the rest deferred urbs. */ 3334 while ((urb = usb_get_from_anchor(&data->deferred))) { 3335 kfree(urb->setup_packet); 3336 usb_free_urb(urb); 3337 } 3338 } 3339 3340 static int btusb_resume(struct usb_interface *intf) 3341 { 3342 struct btusb_data *data = usb_get_intfdata(intf); 3343 struct hci_dev *hdev = data->hdev; 3344 int err = 0; 3345 3346 BT_DBG("intf %p", intf); 3347 3348 if (--data->suspend_count) 3349 return 0; 3350 3351 /* Disable only if not already disabled (keep it balanced) */ 3352 if (test_and_clear_bit(BTUSB_OOB_WAKE_ENABLED, &data->flags)) { 3353 disable_irq(data->oob_wake_irq); 3354 disable_irq_wake(data->oob_wake_irq); 3355 } 3356 3357 if (!test_bit(HCI_RUNNING, &hdev->flags)) 3358 goto done; 3359 3360 if (test_bit(BTUSB_INTR_RUNNING, &data->flags)) { 3361 err = btusb_submit_intr_urb(hdev, GFP_NOIO); 3362 if (err < 0) { 3363 clear_bit(BTUSB_INTR_RUNNING, &data->flags); 3364 goto failed; 3365 } 3366 } 3367 3368 if (test_bit(BTUSB_BULK_RUNNING, &data->flags)) { 3369 err = btusb_submit_bulk_urb(hdev, GFP_NOIO); 3370 if (err < 0) { 3371 clear_bit(BTUSB_BULK_RUNNING, &data->flags); 3372 goto failed; 3373 } 3374 3375 btusb_submit_bulk_urb(hdev, GFP_NOIO); 3376 } 3377 3378 if (test_bit(BTUSB_ISOC_RUNNING, &data->flags)) { 3379 if (btusb_submit_isoc_urb(hdev, GFP_NOIO) < 0) 3380 clear_bit(BTUSB_ISOC_RUNNING, &data->flags); 3381 else 3382 btusb_submit_isoc_urb(hdev, GFP_NOIO); 3383 } 3384 3385 spin_lock_irq(&data->txlock); 3386 play_deferred(data); 3387 clear_bit(BTUSB_SUSPENDING, &data->flags); 3388 spin_unlock_irq(&data->txlock); 3389 schedule_work(&data->work); 3390 3391 return 0; 3392 3393 failed: 3394 usb_scuttle_anchored_urbs(&data->deferred); 3395 done: 3396 spin_lock_irq(&data->txlock); 3397 clear_bit(BTUSB_SUSPENDING, &data->flags); 3398 spin_unlock_irq(&data->txlock); 3399 3400 return err; 3401 } 3402 #endif 3403 3404 static struct usb_driver btusb_driver = { 3405 .name = "btusb", 3406 .probe = btusb_probe, 3407 .disconnect = btusb_disconnect, 3408 #ifdef CONFIG_PM 3409 .suspend = btusb_suspend, 3410 .resume = btusb_resume, 3411 #endif 3412 .id_table = btusb_table, 3413 .supports_autosuspend = 1, 3414 .disable_hub_initiated_lpm = 1, 3415 }; 3416 3417 module_usb_driver(btusb_driver); 3418 3419 module_param(disable_scofix, bool, 0644); 3420 MODULE_PARM_DESC(disable_scofix, "Disable fixup of wrong SCO buffer size"); 3421 3422 module_param(force_scofix, bool, 0644); 3423 MODULE_PARM_DESC(force_scofix, "Force fixup of wrong SCO buffers size"); 3424 3425 module_param(enable_autosuspend, bool, 0644); 3426 MODULE_PARM_DESC(enable_autosuspend, "Enable USB autosuspend by default"); 3427 3428 module_param(reset, bool, 0644); 3429 MODULE_PARM_DESC(reset, "Send HCI reset command on initialization"); 3430 3431 MODULE_AUTHOR("Marcel Holtmann <marcel@holtmann.org>"); 3432 MODULE_DESCRIPTION("Generic Bluetooth USB driver ver " VERSION); 3433 MODULE_VERSION(VERSION); 3434 MODULE_LICENSE("GPL"); 3435