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, 0x535b), .driver_info = BTUSB_QCA_ROME }, 268 { USB_DEVICE(0x0cf3, 0xe007), .driver_info = BTUSB_QCA_ROME }, 269 { USB_DEVICE(0x0cf3, 0xe009), .driver_info = BTUSB_QCA_ROME }, 270 { USB_DEVICE(0x0cf3, 0xe010), .driver_info = BTUSB_QCA_ROME }, 271 { USB_DEVICE(0x0cf3, 0xe300), .driver_info = BTUSB_QCA_ROME }, 272 { USB_DEVICE(0x0cf3, 0xe301), .driver_info = BTUSB_QCA_ROME }, 273 { USB_DEVICE(0x0cf3, 0xe360), .driver_info = BTUSB_QCA_ROME }, 274 { USB_DEVICE(0x0489, 0xe092), .driver_info = BTUSB_QCA_ROME }, 275 { USB_DEVICE(0x0489, 0xe09f), .driver_info = BTUSB_QCA_ROME }, 276 { USB_DEVICE(0x0489, 0xe0a2), .driver_info = BTUSB_QCA_ROME }, 277 { USB_DEVICE(0x04ca, 0x3011), .driver_info = BTUSB_QCA_ROME }, 278 { USB_DEVICE(0x04ca, 0x3015), .driver_info = BTUSB_QCA_ROME }, 279 { USB_DEVICE(0x04ca, 0x3016), .driver_info = BTUSB_QCA_ROME }, 280 { USB_DEVICE(0x04ca, 0x301a), .driver_info = BTUSB_QCA_ROME }, 281 { USB_DEVICE(0x13d3, 0x3496), .driver_info = BTUSB_QCA_ROME }, 282 283 /* Broadcom BCM2035 */ 284 { USB_DEVICE(0x0a5c, 0x2009), .driver_info = BTUSB_BCM92035 }, 285 { USB_DEVICE(0x0a5c, 0x200a), .driver_info = BTUSB_WRONG_SCO_MTU }, 286 { USB_DEVICE(0x0a5c, 0x2035), .driver_info = BTUSB_WRONG_SCO_MTU }, 287 288 /* Broadcom BCM2045 */ 289 { USB_DEVICE(0x0a5c, 0x2039), .driver_info = BTUSB_WRONG_SCO_MTU }, 290 { USB_DEVICE(0x0a5c, 0x2101), .driver_info = BTUSB_WRONG_SCO_MTU }, 291 292 /* IBM/Lenovo ThinkPad with Broadcom chip */ 293 { USB_DEVICE(0x0a5c, 0x201e), .driver_info = BTUSB_WRONG_SCO_MTU }, 294 { USB_DEVICE(0x0a5c, 0x2110), .driver_info = BTUSB_WRONG_SCO_MTU }, 295 296 /* HP laptop with Broadcom chip */ 297 { USB_DEVICE(0x03f0, 0x171d), .driver_info = BTUSB_WRONG_SCO_MTU }, 298 299 /* Dell laptop with Broadcom chip */ 300 { USB_DEVICE(0x413c, 0x8126), .driver_info = BTUSB_WRONG_SCO_MTU }, 301 302 /* Dell Wireless 370 and 410 devices */ 303 { USB_DEVICE(0x413c, 0x8152), .driver_info = BTUSB_WRONG_SCO_MTU }, 304 { USB_DEVICE(0x413c, 0x8156), .driver_info = BTUSB_WRONG_SCO_MTU }, 305 306 /* Belkin F8T012 and F8T013 devices */ 307 { USB_DEVICE(0x050d, 0x0012), .driver_info = BTUSB_WRONG_SCO_MTU }, 308 { USB_DEVICE(0x050d, 0x0013), .driver_info = BTUSB_WRONG_SCO_MTU }, 309 310 /* Asus WL-BTD202 device */ 311 { USB_DEVICE(0x0b05, 0x1715), .driver_info = BTUSB_WRONG_SCO_MTU }, 312 313 /* Kensington Bluetooth USB adapter */ 314 { USB_DEVICE(0x047d, 0x105e), .driver_info = BTUSB_WRONG_SCO_MTU }, 315 316 /* RTX Telecom based adapters with buggy SCO support */ 317 { USB_DEVICE(0x0400, 0x0807), .driver_info = BTUSB_BROKEN_ISOC }, 318 { USB_DEVICE(0x0400, 0x080a), .driver_info = BTUSB_BROKEN_ISOC }, 319 320 /* CONWISE Technology based adapters with buggy SCO support */ 321 { USB_DEVICE(0x0e5e, 0x6622), 322 .driver_info = BTUSB_BROKEN_ISOC | BTUSB_CW6622}, 323 324 /* Roper Class 1 Bluetooth Dongle (Silicon Wave based) */ 325 { USB_DEVICE(0x1310, 0x0001), .driver_info = BTUSB_SWAVE }, 326 327 /* Digianswer devices */ 328 { USB_DEVICE(0x08fd, 0x0001), .driver_info = BTUSB_DIGIANSWER }, 329 { USB_DEVICE(0x08fd, 0x0002), .driver_info = BTUSB_IGNORE }, 330 331 /* CSR BlueCore Bluetooth Sniffer */ 332 { USB_DEVICE(0x0a12, 0x0002), 333 .driver_info = BTUSB_SNIFFER | BTUSB_BROKEN_ISOC }, 334 335 /* Frontline ComProbe Bluetooth Sniffer */ 336 { USB_DEVICE(0x16d3, 0x0002), 337 .driver_info = BTUSB_SNIFFER | BTUSB_BROKEN_ISOC }, 338 339 /* Marvell Bluetooth devices */ 340 { USB_DEVICE(0x1286, 0x2044), .driver_info = BTUSB_MARVELL }, 341 { USB_DEVICE(0x1286, 0x2046), .driver_info = BTUSB_MARVELL }, 342 { USB_DEVICE(0x1286, 0x204e), .driver_info = BTUSB_MARVELL }, 343 344 /* Intel Bluetooth devices */ 345 { USB_DEVICE(0x8087, 0x0025), .driver_info = BTUSB_INTEL_NEW }, 346 { USB_DEVICE(0x8087, 0x0026), .driver_info = BTUSB_INTEL_NEW }, 347 { USB_DEVICE(0x8087, 0x0029), .driver_info = BTUSB_INTEL_NEW }, 348 { USB_DEVICE(0x8087, 0x07da), .driver_info = BTUSB_CSR }, 349 { USB_DEVICE(0x8087, 0x07dc), .driver_info = BTUSB_INTEL }, 350 { USB_DEVICE(0x8087, 0x0a2a), .driver_info = BTUSB_INTEL }, 351 { USB_DEVICE(0x8087, 0x0a2b), .driver_info = BTUSB_INTEL_NEW }, 352 { USB_DEVICE(0x8087, 0x0aa7), .driver_info = BTUSB_INTEL }, 353 { USB_DEVICE(0x8087, 0x0aaa), .driver_info = BTUSB_INTEL_NEW }, 354 355 /* Other Intel Bluetooth devices */ 356 { USB_VENDOR_AND_INTERFACE_INFO(0x8087, 0xe0, 0x01, 0x01), 357 .driver_info = BTUSB_IGNORE }, 358 359 /* Realtek Bluetooth devices */ 360 { USB_VENDOR_AND_INTERFACE_INFO(0x0bda, 0xe0, 0x01, 0x01), 361 .driver_info = BTUSB_REALTEK }, 362 363 /* Additional Realtek 8723AE Bluetooth devices */ 364 { USB_DEVICE(0x0930, 0x021d), .driver_info = BTUSB_REALTEK }, 365 { USB_DEVICE(0x13d3, 0x3394), .driver_info = BTUSB_REALTEK }, 366 367 /* Additional Realtek 8723BE Bluetooth devices */ 368 { USB_DEVICE(0x0489, 0xe085), .driver_info = BTUSB_REALTEK }, 369 { USB_DEVICE(0x0489, 0xe08b), .driver_info = BTUSB_REALTEK }, 370 { USB_DEVICE(0x13d3, 0x3410), .driver_info = BTUSB_REALTEK }, 371 { USB_DEVICE(0x13d3, 0x3416), .driver_info = BTUSB_REALTEK }, 372 { USB_DEVICE(0x13d3, 0x3459), .driver_info = BTUSB_REALTEK }, 373 { USB_DEVICE(0x13d3, 0x3494), .driver_info = BTUSB_REALTEK }, 374 375 /* Additional Realtek 8723BU Bluetooth devices */ 376 { USB_DEVICE(0x7392, 0xa611), .driver_info = BTUSB_REALTEK }, 377 378 /* Additional Realtek 8723DE Bluetooth devices */ 379 { USB_DEVICE(0x0bda, 0xb009), .driver_info = BTUSB_REALTEK }, 380 { USB_DEVICE(0x2ff8, 0xb011), .driver_info = BTUSB_REALTEK }, 381 382 /* Additional Realtek 8821AE Bluetooth devices */ 383 { USB_DEVICE(0x0b05, 0x17dc), .driver_info = BTUSB_REALTEK }, 384 { USB_DEVICE(0x13d3, 0x3414), .driver_info = BTUSB_REALTEK }, 385 { USB_DEVICE(0x13d3, 0x3458), .driver_info = BTUSB_REALTEK }, 386 { USB_DEVICE(0x13d3, 0x3461), .driver_info = BTUSB_REALTEK }, 387 { USB_DEVICE(0x13d3, 0x3462), .driver_info = BTUSB_REALTEK }, 388 389 /* Additional Realtek 8822BE Bluetooth devices */ 390 { USB_DEVICE(0x13d3, 0x3526), .driver_info = BTUSB_REALTEK }, 391 { USB_DEVICE(0x0b05, 0x185c), .driver_info = BTUSB_REALTEK }, 392 393 /* Silicon Wave based devices */ 394 { USB_DEVICE(0x0c10, 0x0000), .driver_info = BTUSB_SWAVE }, 395 396 { } /* Terminating entry */ 397 }; 398 399 /* The Bluetooth USB module build into some devices needs to be reset on resume, 400 * this is a problem with the platform (likely shutting off all power) not with 401 * the module itself. So we use a DMI list to match known broken platforms. 402 */ 403 static const struct dmi_system_id btusb_needs_reset_resume_table[] = { 404 { 405 /* Dell OptiPlex 3060 (QCA ROME device 0cf3:e007) */ 406 .matches = { 407 DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."), 408 DMI_MATCH(DMI_PRODUCT_NAME, "OptiPlex 3060"), 409 }, 410 }, 411 { 412 /* Dell XPS 9360 (QCA ROME device 0cf3:e300) */ 413 .matches = { 414 DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."), 415 DMI_MATCH(DMI_PRODUCT_NAME, "XPS 13 9360"), 416 }, 417 }, 418 { 419 /* Dell Inspiron 5565 (QCA ROME device 0cf3:e009) */ 420 .matches = { 421 DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."), 422 DMI_MATCH(DMI_PRODUCT_NAME, "Inspiron 5565"), 423 }, 424 }, 425 {} 426 }; 427 428 #define BTUSB_MAX_ISOC_FRAMES 10 429 430 #define BTUSB_INTR_RUNNING 0 431 #define BTUSB_BULK_RUNNING 1 432 #define BTUSB_ISOC_RUNNING 2 433 #define BTUSB_SUSPENDING 3 434 #define BTUSB_DID_ISO_RESUME 4 435 #define BTUSB_BOOTLOADER 5 436 #define BTUSB_DOWNLOADING 6 437 #define BTUSB_FIRMWARE_LOADED 7 438 #define BTUSB_FIRMWARE_FAILED 8 439 #define BTUSB_BOOTING 9 440 #define BTUSB_DIAG_RUNNING 10 441 #define BTUSB_OOB_WAKE_ENABLED 11 442 443 struct btusb_data { 444 struct hci_dev *hdev; 445 struct usb_device *udev; 446 struct usb_interface *intf; 447 struct usb_interface *isoc; 448 struct usb_interface *diag; 449 unsigned isoc_ifnum; 450 451 unsigned long flags; 452 453 struct work_struct work; 454 struct work_struct waker; 455 456 struct usb_anchor deferred; 457 struct usb_anchor tx_anchor; 458 int tx_in_flight; 459 spinlock_t txlock; 460 461 struct usb_anchor intr_anchor; 462 struct usb_anchor bulk_anchor; 463 struct usb_anchor isoc_anchor; 464 struct usb_anchor diag_anchor; 465 spinlock_t rxlock; 466 467 struct sk_buff *evt_skb; 468 struct sk_buff *acl_skb; 469 struct sk_buff *sco_skb; 470 471 struct usb_endpoint_descriptor *intr_ep; 472 struct usb_endpoint_descriptor *bulk_tx_ep; 473 struct usb_endpoint_descriptor *bulk_rx_ep; 474 struct usb_endpoint_descriptor *isoc_tx_ep; 475 struct usb_endpoint_descriptor *isoc_rx_ep; 476 struct usb_endpoint_descriptor *diag_tx_ep; 477 struct usb_endpoint_descriptor *diag_rx_ep; 478 479 __u8 cmdreq_type; 480 __u8 cmdreq; 481 482 unsigned int sco_num; 483 int isoc_altsetting; 484 int suspend_count; 485 486 int (*recv_event)(struct hci_dev *hdev, struct sk_buff *skb); 487 int (*recv_bulk)(struct btusb_data *data, void *buffer, int count); 488 489 int (*setup_on_usb)(struct hci_dev *hdev); 490 491 int oob_wake_irq; /* irq for out-of-band wake-on-bt */ 492 }; 493 494 static inline void btusb_free_frags(struct btusb_data *data) 495 { 496 unsigned long flags; 497 498 spin_lock_irqsave(&data->rxlock, flags); 499 500 kfree_skb(data->evt_skb); 501 data->evt_skb = NULL; 502 503 kfree_skb(data->acl_skb); 504 data->acl_skb = NULL; 505 506 kfree_skb(data->sco_skb); 507 data->sco_skb = NULL; 508 509 spin_unlock_irqrestore(&data->rxlock, flags); 510 } 511 512 static int btusb_recv_intr(struct btusb_data *data, void *buffer, int count) 513 { 514 struct sk_buff *skb; 515 unsigned long flags; 516 int err = 0; 517 518 spin_lock_irqsave(&data->rxlock, flags); 519 skb = data->evt_skb; 520 521 while (count) { 522 int len; 523 524 if (!skb) { 525 skb = bt_skb_alloc(HCI_MAX_EVENT_SIZE, GFP_ATOMIC); 526 if (!skb) { 527 err = -ENOMEM; 528 break; 529 } 530 531 hci_skb_pkt_type(skb) = HCI_EVENT_PKT; 532 hci_skb_expect(skb) = HCI_EVENT_HDR_SIZE; 533 } 534 535 len = min_t(uint, hci_skb_expect(skb), count); 536 skb_put_data(skb, buffer, len); 537 538 count -= len; 539 buffer += len; 540 hci_skb_expect(skb) -= len; 541 542 if (skb->len == HCI_EVENT_HDR_SIZE) { 543 /* Complete event header */ 544 hci_skb_expect(skb) = hci_event_hdr(skb)->plen; 545 546 if (skb_tailroom(skb) < hci_skb_expect(skb)) { 547 kfree_skb(skb); 548 skb = NULL; 549 550 err = -EILSEQ; 551 break; 552 } 553 } 554 555 if (!hci_skb_expect(skb)) { 556 /* Complete frame */ 557 data->recv_event(data->hdev, skb); 558 skb = NULL; 559 } 560 } 561 562 data->evt_skb = skb; 563 spin_unlock_irqrestore(&data->rxlock, flags); 564 565 return err; 566 } 567 568 static int btusb_recv_bulk(struct btusb_data *data, void *buffer, int count) 569 { 570 struct sk_buff *skb; 571 unsigned long flags; 572 int err = 0; 573 574 spin_lock_irqsave(&data->rxlock, flags); 575 skb = data->acl_skb; 576 577 while (count) { 578 int len; 579 580 if (!skb) { 581 skb = bt_skb_alloc(HCI_MAX_FRAME_SIZE, GFP_ATOMIC); 582 if (!skb) { 583 err = -ENOMEM; 584 break; 585 } 586 587 hci_skb_pkt_type(skb) = HCI_ACLDATA_PKT; 588 hci_skb_expect(skb) = HCI_ACL_HDR_SIZE; 589 } 590 591 len = min_t(uint, hci_skb_expect(skb), count); 592 skb_put_data(skb, buffer, len); 593 594 count -= len; 595 buffer += len; 596 hci_skb_expect(skb) -= len; 597 598 if (skb->len == HCI_ACL_HDR_SIZE) { 599 __le16 dlen = hci_acl_hdr(skb)->dlen; 600 601 /* Complete ACL header */ 602 hci_skb_expect(skb) = __le16_to_cpu(dlen); 603 604 if (skb_tailroom(skb) < hci_skb_expect(skb)) { 605 kfree_skb(skb); 606 skb = NULL; 607 608 err = -EILSEQ; 609 break; 610 } 611 } 612 613 if (!hci_skb_expect(skb)) { 614 /* Complete frame */ 615 hci_recv_frame(data->hdev, skb); 616 skb = NULL; 617 } 618 } 619 620 data->acl_skb = skb; 621 spin_unlock_irqrestore(&data->rxlock, flags); 622 623 return err; 624 } 625 626 static int btusb_recv_isoc(struct btusb_data *data, void *buffer, int count) 627 { 628 struct sk_buff *skb; 629 unsigned long flags; 630 int err = 0; 631 632 spin_lock_irqsave(&data->rxlock, flags); 633 skb = data->sco_skb; 634 635 while (count) { 636 int len; 637 638 if (!skb) { 639 skb = bt_skb_alloc(HCI_MAX_SCO_SIZE, GFP_ATOMIC); 640 if (!skb) { 641 err = -ENOMEM; 642 break; 643 } 644 645 hci_skb_pkt_type(skb) = HCI_SCODATA_PKT; 646 hci_skb_expect(skb) = HCI_SCO_HDR_SIZE; 647 } 648 649 len = min_t(uint, hci_skb_expect(skb), count); 650 skb_put_data(skb, buffer, len); 651 652 count -= len; 653 buffer += len; 654 hci_skb_expect(skb) -= len; 655 656 if (skb->len == HCI_SCO_HDR_SIZE) { 657 /* Complete SCO header */ 658 hci_skb_expect(skb) = hci_sco_hdr(skb)->dlen; 659 660 if (skb_tailroom(skb) < hci_skb_expect(skb)) { 661 kfree_skb(skb); 662 skb = NULL; 663 664 err = -EILSEQ; 665 break; 666 } 667 } 668 669 if (!hci_skb_expect(skb)) { 670 /* Complete frame */ 671 hci_recv_frame(data->hdev, skb); 672 skb = NULL; 673 } 674 } 675 676 data->sco_skb = skb; 677 spin_unlock_irqrestore(&data->rxlock, flags); 678 679 return err; 680 } 681 682 static void btusb_intr_complete(struct urb *urb) 683 { 684 struct hci_dev *hdev = urb->context; 685 struct btusb_data *data = hci_get_drvdata(hdev); 686 int err; 687 688 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status, 689 urb->actual_length); 690 691 if (!test_bit(HCI_RUNNING, &hdev->flags)) 692 return; 693 694 if (urb->status == 0) { 695 hdev->stat.byte_rx += urb->actual_length; 696 697 if (btusb_recv_intr(data, urb->transfer_buffer, 698 urb->actual_length) < 0) { 699 bt_dev_err(hdev, "corrupted event packet"); 700 hdev->stat.err_rx++; 701 } 702 } else if (urb->status == -ENOENT) { 703 /* Avoid suspend failed when usb_kill_urb */ 704 return; 705 } 706 707 if (!test_bit(BTUSB_INTR_RUNNING, &data->flags)) 708 return; 709 710 usb_mark_last_busy(data->udev); 711 usb_anchor_urb(urb, &data->intr_anchor); 712 713 err = usb_submit_urb(urb, GFP_ATOMIC); 714 if (err < 0) { 715 /* -EPERM: urb is being killed; 716 * -ENODEV: device got disconnected 717 */ 718 if (err != -EPERM && err != -ENODEV) 719 bt_dev_err(hdev, "urb %p failed to resubmit (%d)", 720 urb, -err); 721 usb_unanchor_urb(urb); 722 } 723 } 724 725 static int btusb_submit_intr_urb(struct hci_dev *hdev, gfp_t mem_flags) 726 { 727 struct btusb_data *data = hci_get_drvdata(hdev); 728 struct urb *urb; 729 unsigned char *buf; 730 unsigned int pipe; 731 int err, size; 732 733 BT_DBG("%s", hdev->name); 734 735 if (!data->intr_ep) 736 return -ENODEV; 737 738 urb = usb_alloc_urb(0, mem_flags); 739 if (!urb) 740 return -ENOMEM; 741 742 size = le16_to_cpu(data->intr_ep->wMaxPacketSize); 743 744 buf = kmalloc(size, mem_flags); 745 if (!buf) { 746 usb_free_urb(urb); 747 return -ENOMEM; 748 } 749 750 pipe = usb_rcvintpipe(data->udev, data->intr_ep->bEndpointAddress); 751 752 usb_fill_int_urb(urb, data->udev, pipe, buf, size, 753 btusb_intr_complete, hdev, data->intr_ep->bInterval); 754 755 urb->transfer_flags |= URB_FREE_BUFFER; 756 757 usb_anchor_urb(urb, &data->intr_anchor); 758 759 err = usb_submit_urb(urb, mem_flags); 760 if (err < 0) { 761 if (err != -EPERM && err != -ENODEV) 762 bt_dev_err(hdev, "urb %p submission failed (%d)", 763 urb, -err); 764 usb_unanchor_urb(urb); 765 } 766 767 usb_free_urb(urb); 768 769 return err; 770 } 771 772 static void btusb_bulk_complete(struct urb *urb) 773 { 774 struct hci_dev *hdev = urb->context; 775 struct btusb_data *data = hci_get_drvdata(hdev); 776 int err; 777 778 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status, 779 urb->actual_length); 780 781 if (!test_bit(HCI_RUNNING, &hdev->flags)) 782 return; 783 784 if (urb->status == 0) { 785 hdev->stat.byte_rx += urb->actual_length; 786 787 if (data->recv_bulk(data, urb->transfer_buffer, 788 urb->actual_length) < 0) { 789 bt_dev_err(hdev, "corrupted ACL packet"); 790 hdev->stat.err_rx++; 791 } 792 } else if (urb->status == -ENOENT) { 793 /* Avoid suspend failed when usb_kill_urb */ 794 return; 795 } 796 797 if (!test_bit(BTUSB_BULK_RUNNING, &data->flags)) 798 return; 799 800 usb_anchor_urb(urb, &data->bulk_anchor); 801 usb_mark_last_busy(data->udev); 802 803 err = usb_submit_urb(urb, GFP_ATOMIC); 804 if (err < 0) { 805 /* -EPERM: urb is being killed; 806 * -ENODEV: device got disconnected 807 */ 808 if (err != -EPERM && err != -ENODEV) 809 bt_dev_err(hdev, "urb %p failed to resubmit (%d)", 810 urb, -err); 811 usb_unanchor_urb(urb); 812 } 813 } 814 815 static int btusb_submit_bulk_urb(struct hci_dev *hdev, gfp_t mem_flags) 816 { 817 struct btusb_data *data = hci_get_drvdata(hdev); 818 struct urb *urb; 819 unsigned char *buf; 820 unsigned int pipe; 821 int err, size = HCI_MAX_FRAME_SIZE; 822 823 BT_DBG("%s", hdev->name); 824 825 if (!data->bulk_rx_ep) 826 return -ENODEV; 827 828 urb = usb_alloc_urb(0, mem_flags); 829 if (!urb) 830 return -ENOMEM; 831 832 buf = kmalloc(size, mem_flags); 833 if (!buf) { 834 usb_free_urb(urb); 835 return -ENOMEM; 836 } 837 838 pipe = usb_rcvbulkpipe(data->udev, data->bulk_rx_ep->bEndpointAddress); 839 840 usb_fill_bulk_urb(urb, data->udev, pipe, buf, size, 841 btusb_bulk_complete, hdev); 842 843 urb->transfer_flags |= URB_FREE_BUFFER; 844 845 usb_mark_last_busy(data->udev); 846 usb_anchor_urb(urb, &data->bulk_anchor); 847 848 err = usb_submit_urb(urb, mem_flags); 849 if (err < 0) { 850 if (err != -EPERM && err != -ENODEV) 851 bt_dev_err(hdev, "urb %p submission failed (%d)", 852 urb, -err); 853 usb_unanchor_urb(urb); 854 } 855 856 usb_free_urb(urb); 857 858 return err; 859 } 860 861 static void btusb_isoc_complete(struct urb *urb) 862 { 863 struct hci_dev *hdev = urb->context; 864 struct btusb_data *data = hci_get_drvdata(hdev); 865 int i, err; 866 867 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status, 868 urb->actual_length); 869 870 if (!test_bit(HCI_RUNNING, &hdev->flags)) 871 return; 872 873 if (urb->status == 0) { 874 for (i = 0; i < urb->number_of_packets; i++) { 875 unsigned int offset = urb->iso_frame_desc[i].offset; 876 unsigned int length = urb->iso_frame_desc[i].actual_length; 877 878 if (urb->iso_frame_desc[i].status) 879 continue; 880 881 hdev->stat.byte_rx += length; 882 883 if (btusb_recv_isoc(data, urb->transfer_buffer + offset, 884 length) < 0) { 885 bt_dev_err(hdev, "corrupted SCO packet"); 886 hdev->stat.err_rx++; 887 } 888 } 889 } else if (urb->status == -ENOENT) { 890 /* Avoid suspend failed when usb_kill_urb */ 891 return; 892 } 893 894 if (!test_bit(BTUSB_ISOC_RUNNING, &data->flags)) 895 return; 896 897 usb_anchor_urb(urb, &data->isoc_anchor); 898 899 err = usb_submit_urb(urb, GFP_ATOMIC); 900 if (err < 0) { 901 /* -EPERM: urb is being killed; 902 * -ENODEV: device got disconnected 903 */ 904 if (err != -EPERM && err != -ENODEV) 905 bt_dev_err(hdev, "urb %p failed to resubmit (%d)", 906 urb, -err); 907 usb_unanchor_urb(urb); 908 } 909 } 910 911 static inline void __fill_isoc_descriptor(struct urb *urb, int len, int mtu) 912 { 913 int i, offset = 0; 914 915 BT_DBG("len %d mtu %d", len, mtu); 916 917 for (i = 0; i < BTUSB_MAX_ISOC_FRAMES && len >= mtu; 918 i++, offset += mtu, len -= mtu) { 919 urb->iso_frame_desc[i].offset = offset; 920 urb->iso_frame_desc[i].length = mtu; 921 } 922 923 if (len && i < BTUSB_MAX_ISOC_FRAMES) { 924 urb->iso_frame_desc[i].offset = offset; 925 urb->iso_frame_desc[i].length = len; 926 i++; 927 } 928 929 urb->number_of_packets = i; 930 } 931 932 static int btusb_submit_isoc_urb(struct hci_dev *hdev, gfp_t mem_flags) 933 { 934 struct btusb_data *data = hci_get_drvdata(hdev); 935 struct urb *urb; 936 unsigned char *buf; 937 unsigned int pipe; 938 int err, size; 939 940 BT_DBG("%s", hdev->name); 941 942 if (!data->isoc_rx_ep) 943 return -ENODEV; 944 945 urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, mem_flags); 946 if (!urb) 947 return -ENOMEM; 948 949 size = le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize) * 950 BTUSB_MAX_ISOC_FRAMES; 951 952 buf = kmalloc(size, mem_flags); 953 if (!buf) { 954 usb_free_urb(urb); 955 return -ENOMEM; 956 } 957 958 pipe = usb_rcvisocpipe(data->udev, data->isoc_rx_ep->bEndpointAddress); 959 960 usb_fill_int_urb(urb, data->udev, pipe, buf, size, btusb_isoc_complete, 961 hdev, data->isoc_rx_ep->bInterval); 962 963 urb->transfer_flags = URB_FREE_BUFFER | URB_ISO_ASAP; 964 965 __fill_isoc_descriptor(urb, size, 966 le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize)); 967 968 usb_anchor_urb(urb, &data->isoc_anchor); 969 970 err = usb_submit_urb(urb, mem_flags); 971 if (err < 0) { 972 if (err != -EPERM && err != -ENODEV) 973 bt_dev_err(hdev, "urb %p submission failed (%d)", 974 urb, -err); 975 usb_unanchor_urb(urb); 976 } 977 978 usb_free_urb(urb); 979 980 return err; 981 } 982 983 static void btusb_diag_complete(struct urb *urb) 984 { 985 struct hci_dev *hdev = urb->context; 986 struct btusb_data *data = hci_get_drvdata(hdev); 987 int err; 988 989 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status, 990 urb->actual_length); 991 992 if (urb->status == 0) { 993 struct sk_buff *skb; 994 995 skb = bt_skb_alloc(urb->actual_length, GFP_ATOMIC); 996 if (skb) { 997 skb_put_data(skb, urb->transfer_buffer, 998 urb->actual_length); 999 hci_recv_diag(hdev, skb); 1000 } 1001 } else if (urb->status == -ENOENT) { 1002 /* Avoid suspend failed when usb_kill_urb */ 1003 return; 1004 } 1005 1006 if (!test_bit(BTUSB_DIAG_RUNNING, &data->flags)) 1007 return; 1008 1009 usb_anchor_urb(urb, &data->diag_anchor); 1010 usb_mark_last_busy(data->udev); 1011 1012 err = usb_submit_urb(urb, GFP_ATOMIC); 1013 if (err < 0) { 1014 /* -EPERM: urb is being killed; 1015 * -ENODEV: device got disconnected 1016 */ 1017 if (err != -EPERM && err != -ENODEV) 1018 bt_dev_err(hdev, "urb %p failed to resubmit (%d)", 1019 urb, -err); 1020 usb_unanchor_urb(urb); 1021 } 1022 } 1023 1024 static int btusb_submit_diag_urb(struct hci_dev *hdev, gfp_t mem_flags) 1025 { 1026 struct btusb_data *data = hci_get_drvdata(hdev); 1027 struct urb *urb; 1028 unsigned char *buf; 1029 unsigned int pipe; 1030 int err, size = HCI_MAX_FRAME_SIZE; 1031 1032 BT_DBG("%s", hdev->name); 1033 1034 if (!data->diag_rx_ep) 1035 return -ENODEV; 1036 1037 urb = usb_alloc_urb(0, mem_flags); 1038 if (!urb) 1039 return -ENOMEM; 1040 1041 buf = kmalloc(size, mem_flags); 1042 if (!buf) { 1043 usb_free_urb(urb); 1044 return -ENOMEM; 1045 } 1046 1047 pipe = usb_rcvbulkpipe(data->udev, data->diag_rx_ep->bEndpointAddress); 1048 1049 usb_fill_bulk_urb(urb, data->udev, pipe, buf, size, 1050 btusb_diag_complete, hdev); 1051 1052 urb->transfer_flags |= URB_FREE_BUFFER; 1053 1054 usb_mark_last_busy(data->udev); 1055 usb_anchor_urb(urb, &data->diag_anchor); 1056 1057 err = usb_submit_urb(urb, mem_flags); 1058 if (err < 0) { 1059 if (err != -EPERM && err != -ENODEV) 1060 bt_dev_err(hdev, "urb %p submission failed (%d)", 1061 urb, -err); 1062 usb_unanchor_urb(urb); 1063 } 1064 1065 usb_free_urb(urb); 1066 1067 return err; 1068 } 1069 1070 static void btusb_tx_complete(struct urb *urb) 1071 { 1072 struct sk_buff *skb = urb->context; 1073 struct hci_dev *hdev = (struct hci_dev *)skb->dev; 1074 struct btusb_data *data = hci_get_drvdata(hdev); 1075 unsigned long flags; 1076 1077 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status, 1078 urb->actual_length); 1079 1080 if (!test_bit(HCI_RUNNING, &hdev->flags)) 1081 goto done; 1082 1083 if (!urb->status) 1084 hdev->stat.byte_tx += urb->transfer_buffer_length; 1085 else 1086 hdev->stat.err_tx++; 1087 1088 done: 1089 spin_lock_irqsave(&data->txlock, flags); 1090 data->tx_in_flight--; 1091 spin_unlock_irqrestore(&data->txlock, flags); 1092 1093 kfree(urb->setup_packet); 1094 1095 kfree_skb(skb); 1096 } 1097 1098 static void btusb_isoc_tx_complete(struct urb *urb) 1099 { 1100 struct sk_buff *skb = urb->context; 1101 struct hci_dev *hdev = (struct hci_dev *)skb->dev; 1102 1103 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status, 1104 urb->actual_length); 1105 1106 if (!test_bit(HCI_RUNNING, &hdev->flags)) 1107 goto done; 1108 1109 if (!urb->status) 1110 hdev->stat.byte_tx += urb->transfer_buffer_length; 1111 else 1112 hdev->stat.err_tx++; 1113 1114 done: 1115 kfree(urb->setup_packet); 1116 1117 kfree_skb(skb); 1118 } 1119 1120 static int btusb_open(struct hci_dev *hdev) 1121 { 1122 struct btusb_data *data = hci_get_drvdata(hdev); 1123 int err; 1124 1125 BT_DBG("%s", hdev->name); 1126 1127 err = usb_autopm_get_interface(data->intf); 1128 if (err < 0) 1129 return err; 1130 1131 /* Patching USB firmware files prior to starting any URBs of HCI path 1132 * It is more safe to use USB bulk channel for downloading USB patch 1133 */ 1134 if (data->setup_on_usb) { 1135 err = data->setup_on_usb(hdev); 1136 if (err < 0) 1137 return err; 1138 } 1139 1140 data->intf->needs_remote_wakeup = 1; 1141 /* device specific wakeup source enabled and required for USB 1142 * remote wakeup while host is suspended 1143 */ 1144 device_wakeup_enable(&data->udev->dev); 1145 1146 if (test_and_set_bit(BTUSB_INTR_RUNNING, &data->flags)) 1147 goto done; 1148 1149 err = btusb_submit_intr_urb(hdev, GFP_KERNEL); 1150 if (err < 0) 1151 goto failed; 1152 1153 err = btusb_submit_bulk_urb(hdev, GFP_KERNEL); 1154 if (err < 0) { 1155 usb_kill_anchored_urbs(&data->intr_anchor); 1156 goto failed; 1157 } 1158 1159 set_bit(BTUSB_BULK_RUNNING, &data->flags); 1160 btusb_submit_bulk_urb(hdev, GFP_KERNEL); 1161 1162 if (data->diag) { 1163 if (!btusb_submit_diag_urb(hdev, GFP_KERNEL)) 1164 set_bit(BTUSB_DIAG_RUNNING, &data->flags); 1165 } 1166 1167 done: 1168 usb_autopm_put_interface(data->intf); 1169 return 0; 1170 1171 failed: 1172 clear_bit(BTUSB_INTR_RUNNING, &data->flags); 1173 usb_autopm_put_interface(data->intf); 1174 return err; 1175 } 1176 1177 static void btusb_stop_traffic(struct btusb_data *data) 1178 { 1179 usb_kill_anchored_urbs(&data->intr_anchor); 1180 usb_kill_anchored_urbs(&data->bulk_anchor); 1181 usb_kill_anchored_urbs(&data->isoc_anchor); 1182 usb_kill_anchored_urbs(&data->diag_anchor); 1183 } 1184 1185 static int btusb_close(struct hci_dev *hdev) 1186 { 1187 struct btusb_data *data = hci_get_drvdata(hdev); 1188 int err; 1189 1190 BT_DBG("%s", hdev->name); 1191 1192 cancel_work_sync(&data->work); 1193 cancel_work_sync(&data->waker); 1194 1195 clear_bit(BTUSB_ISOC_RUNNING, &data->flags); 1196 clear_bit(BTUSB_BULK_RUNNING, &data->flags); 1197 clear_bit(BTUSB_INTR_RUNNING, &data->flags); 1198 clear_bit(BTUSB_DIAG_RUNNING, &data->flags); 1199 1200 btusb_stop_traffic(data); 1201 btusb_free_frags(data); 1202 1203 err = usb_autopm_get_interface(data->intf); 1204 if (err < 0) 1205 goto failed; 1206 1207 data->intf->needs_remote_wakeup = 0; 1208 device_wakeup_disable(&data->udev->dev); 1209 usb_autopm_put_interface(data->intf); 1210 1211 failed: 1212 usb_scuttle_anchored_urbs(&data->deferred); 1213 return 0; 1214 } 1215 1216 static int btusb_flush(struct hci_dev *hdev) 1217 { 1218 struct btusb_data *data = hci_get_drvdata(hdev); 1219 1220 BT_DBG("%s", hdev->name); 1221 1222 usb_kill_anchored_urbs(&data->tx_anchor); 1223 btusb_free_frags(data); 1224 1225 return 0; 1226 } 1227 1228 static struct urb *alloc_ctrl_urb(struct hci_dev *hdev, struct sk_buff *skb) 1229 { 1230 struct btusb_data *data = hci_get_drvdata(hdev); 1231 struct usb_ctrlrequest *dr; 1232 struct urb *urb; 1233 unsigned int pipe; 1234 1235 urb = usb_alloc_urb(0, GFP_KERNEL); 1236 if (!urb) 1237 return ERR_PTR(-ENOMEM); 1238 1239 dr = kmalloc(sizeof(*dr), GFP_KERNEL); 1240 if (!dr) { 1241 usb_free_urb(urb); 1242 return ERR_PTR(-ENOMEM); 1243 } 1244 1245 dr->bRequestType = data->cmdreq_type; 1246 dr->bRequest = data->cmdreq; 1247 dr->wIndex = 0; 1248 dr->wValue = 0; 1249 dr->wLength = __cpu_to_le16(skb->len); 1250 1251 pipe = usb_sndctrlpipe(data->udev, 0x00); 1252 1253 usb_fill_control_urb(urb, data->udev, pipe, (void *)dr, 1254 skb->data, skb->len, btusb_tx_complete, skb); 1255 1256 skb->dev = (void *)hdev; 1257 1258 return urb; 1259 } 1260 1261 static struct urb *alloc_bulk_urb(struct hci_dev *hdev, struct sk_buff *skb) 1262 { 1263 struct btusb_data *data = hci_get_drvdata(hdev); 1264 struct urb *urb; 1265 unsigned int pipe; 1266 1267 if (!data->bulk_tx_ep) 1268 return ERR_PTR(-ENODEV); 1269 1270 urb = usb_alloc_urb(0, GFP_KERNEL); 1271 if (!urb) 1272 return ERR_PTR(-ENOMEM); 1273 1274 pipe = usb_sndbulkpipe(data->udev, data->bulk_tx_ep->bEndpointAddress); 1275 1276 usb_fill_bulk_urb(urb, data->udev, pipe, 1277 skb->data, skb->len, btusb_tx_complete, skb); 1278 1279 skb->dev = (void *)hdev; 1280 1281 return urb; 1282 } 1283 1284 static struct urb *alloc_isoc_urb(struct hci_dev *hdev, struct sk_buff *skb) 1285 { 1286 struct btusb_data *data = hci_get_drvdata(hdev); 1287 struct urb *urb; 1288 unsigned int pipe; 1289 1290 if (!data->isoc_tx_ep) 1291 return ERR_PTR(-ENODEV); 1292 1293 urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, GFP_KERNEL); 1294 if (!urb) 1295 return ERR_PTR(-ENOMEM); 1296 1297 pipe = usb_sndisocpipe(data->udev, data->isoc_tx_ep->bEndpointAddress); 1298 1299 usb_fill_int_urb(urb, data->udev, pipe, 1300 skb->data, skb->len, btusb_isoc_tx_complete, 1301 skb, data->isoc_tx_ep->bInterval); 1302 1303 urb->transfer_flags = URB_ISO_ASAP; 1304 1305 __fill_isoc_descriptor(urb, skb->len, 1306 le16_to_cpu(data->isoc_tx_ep->wMaxPacketSize)); 1307 1308 skb->dev = (void *)hdev; 1309 1310 return urb; 1311 } 1312 1313 static int submit_tx_urb(struct hci_dev *hdev, struct urb *urb) 1314 { 1315 struct btusb_data *data = hci_get_drvdata(hdev); 1316 int err; 1317 1318 usb_anchor_urb(urb, &data->tx_anchor); 1319 1320 err = usb_submit_urb(urb, GFP_KERNEL); 1321 if (err < 0) { 1322 if (err != -EPERM && err != -ENODEV) 1323 bt_dev_err(hdev, "urb %p submission failed (%d)", 1324 urb, -err); 1325 kfree(urb->setup_packet); 1326 usb_unanchor_urb(urb); 1327 } else { 1328 usb_mark_last_busy(data->udev); 1329 } 1330 1331 usb_free_urb(urb); 1332 return err; 1333 } 1334 1335 static int submit_or_queue_tx_urb(struct hci_dev *hdev, struct urb *urb) 1336 { 1337 struct btusb_data *data = hci_get_drvdata(hdev); 1338 unsigned long flags; 1339 bool suspending; 1340 1341 spin_lock_irqsave(&data->txlock, flags); 1342 suspending = test_bit(BTUSB_SUSPENDING, &data->flags); 1343 if (!suspending) 1344 data->tx_in_flight++; 1345 spin_unlock_irqrestore(&data->txlock, flags); 1346 1347 if (!suspending) 1348 return submit_tx_urb(hdev, urb); 1349 1350 usb_anchor_urb(urb, &data->deferred); 1351 schedule_work(&data->waker); 1352 1353 usb_free_urb(urb); 1354 return 0; 1355 } 1356 1357 static int btusb_send_frame(struct hci_dev *hdev, struct sk_buff *skb) 1358 { 1359 struct urb *urb; 1360 1361 BT_DBG("%s", hdev->name); 1362 1363 switch (hci_skb_pkt_type(skb)) { 1364 case HCI_COMMAND_PKT: 1365 urb = alloc_ctrl_urb(hdev, skb); 1366 if (IS_ERR(urb)) 1367 return PTR_ERR(urb); 1368 1369 hdev->stat.cmd_tx++; 1370 return submit_or_queue_tx_urb(hdev, urb); 1371 1372 case HCI_ACLDATA_PKT: 1373 urb = alloc_bulk_urb(hdev, skb); 1374 if (IS_ERR(urb)) 1375 return PTR_ERR(urb); 1376 1377 hdev->stat.acl_tx++; 1378 return submit_or_queue_tx_urb(hdev, urb); 1379 1380 case HCI_SCODATA_PKT: 1381 if (hci_conn_num(hdev, SCO_LINK) < 1) 1382 return -ENODEV; 1383 1384 urb = alloc_isoc_urb(hdev, skb); 1385 if (IS_ERR(urb)) 1386 return PTR_ERR(urb); 1387 1388 hdev->stat.sco_tx++; 1389 return submit_tx_urb(hdev, urb); 1390 } 1391 1392 return -EILSEQ; 1393 } 1394 1395 static void btusb_notify(struct hci_dev *hdev, unsigned int evt) 1396 { 1397 struct btusb_data *data = hci_get_drvdata(hdev); 1398 1399 BT_DBG("%s evt %d", hdev->name, evt); 1400 1401 if (hci_conn_num(hdev, SCO_LINK) != data->sco_num) { 1402 data->sco_num = hci_conn_num(hdev, SCO_LINK); 1403 schedule_work(&data->work); 1404 } 1405 } 1406 1407 static inline int __set_isoc_interface(struct hci_dev *hdev, int altsetting) 1408 { 1409 struct btusb_data *data = hci_get_drvdata(hdev); 1410 struct usb_interface *intf = data->isoc; 1411 struct usb_endpoint_descriptor *ep_desc; 1412 int i, err; 1413 1414 if (!data->isoc) 1415 return -ENODEV; 1416 1417 err = usb_set_interface(data->udev, data->isoc_ifnum, altsetting); 1418 if (err < 0) { 1419 bt_dev_err(hdev, "setting interface failed (%d)", -err); 1420 return err; 1421 } 1422 1423 data->isoc_altsetting = altsetting; 1424 1425 data->isoc_tx_ep = NULL; 1426 data->isoc_rx_ep = NULL; 1427 1428 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) { 1429 ep_desc = &intf->cur_altsetting->endpoint[i].desc; 1430 1431 if (!data->isoc_tx_ep && usb_endpoint_is_isoc_out(ep_desc)) { 1432 data->isoc_tx_ep = ep_desc; 1433 continue; 1434 } 1435 1436 if (!data->isoc_rx_ep && usb_endpoint_is_isoc_in(ep_desc)) { 1437 data->isoc_rx_ep = ep_desc; 1438 continue; 1439 } 1440 } 1441 1442 if (!data->isoc_tx_ep || !data->isoc_rx_ep) { 1443 bt_dev_err(hdev, "invalid SCO descriptors"); 1444 return -ENODEV; 1445 } 1446 1447 return 0; 1448 } 1449 1450 static void btusb_work(struct work_struct *work) 1451 { 1452 struct btusb_data *data = container_of(work, struct btusb_data, work); 1453 struct hci_dev *hdev = data->hdev; 1454 int new_alts; 1455 int err; 1456 1457 if (data->sco_num > 0) { 1458 if (!test_bit(BTUSB_DID_ISO_RESUME, &data->flags)) { 1459 err = usb_autopm_get_interface(data->isoc ? data->isoc : data->intf); 1460 if (err < 0) { 1461 clear_bit(BTUSB_ISOC_RUNNING, &data->flags); 1462 usb_kill_anchored_urbs(&data->isoc_anchor); 1463 return; 1464 } 1465 1466 set_bit(BTUSB_DID_ISO_RESUME, &data->flags); 1467 } 1468 1469 if (hdev->voice_setting & 0x0020) { 1470 static const int alts[3] = { 2, 4, 5 }; 1471 1472 new_alts = alts[data->sco_num - 1]; 1473 } else { 1474 new_alts = data->sco_num; 1475 } 1476 1477 if (data->isoc_altsetting != new_alts) { 1478 unsigned long flags; 1479 1480 clear_bit(BTUSB_ISOC_RUNNING, &data->flags); 1481 usb_kill_anchored_urbs(&data->isoc_anchor); 1482 1483 /* When isochronous alternate setting needs to be 1484 * changed, because SCO connection has been added 1485 * or removed, a packet fragment may be left in the 1486 * reassembling state. This could lead to wrongly 1487 * assembled fragments. 1488 * 1489 * Clear outstanding fragment when selecting a new 1490 * alternate setting. 1491 */ 1492 spin_lock_irqsave(&data->rxlock, flags); 1493 kfree_skb(data->sco_skb); 1494 data->sco_skb = NULL; 1495 spin_unlock_irqrestore(&data->rxlock, flags); 1496 1497 if (__set_isoc_interface(hdev, new_alts) < 0) 1498 return; 1499 } 1500 1501 if (!test_and_set_bit(BTUSB_ISOC_RUNNING, &data->flags)) { 1502 if (btusb_submit_isoc_urb(hdev, GFP_KERNEL) < 0) 1503 clear_bit(BTUSB_ISOC_RUNNING, &data->flags); 1504 else 1505 btusb_submit_isoc_urb(hdev, GFP_KERNEL); 1506 } 1507 } else { 1508 clear_bit(BTUSB_ISOC_RUNNING, &data->flags); 1509 usb_kill_anchored_urbs(&data->isoc_anchor); 1510 1511 __set_isoc_interface(hdev, 0); 1512 if (test_and_clear_bit(BTUSB_DID_ISO_RESUME, &data->flags)) 1513 usb_autopm_put_interface(data->isoc ? data->isoc : data->intf); 1514 } 1515 } 1516 1517 static void btusb_waker(struct work_struct *work) 1518 { 1519 struct btusb_data *data = container_of(work, struct btusb_data, waker); 1520 int err; 1521 1522 err = usb_autopm_get_interface(data->intf); 1523 if (err < 0) 1524 return; 1525 1526 usb_autopm_put_interface(data->intf); 1527 } 1528 1529 static int btusb_setup_bcm92035(struct hci_dev *hdev) 1530 { 1531 struct sk_buff *skb; 1532 u8 val = 0x00; 1533 1534 BT_DBG("%s", hdev->name); 1535 1536 skb = __hci_cmd_sync(hdev, 0xfc3b, 1, &val, HCI_INIT_TIMEOUT); 1537 if (IS_ERR(skb)) 1538 bt_dev_err(hdev, "BCM92035 command failed (%ld)", PTR_ERR(skb)); 1539 else 1540 kfree_skb(skb); 1541 1542 return 0; 1543 } 1544 1545 static int btusb_setup_csr(struct hci_dev *hdev) 1546 { 1547 struct hci_rp_read_local_version *rp; 1548 struct sk_buff *skb; 1549 1550 BT_DBG("%s", hdev->name); 1551 1552 skb = __hci_cmd_sync(hdev, HCI_OP_READ_LOCAL_VERSION, 0, NULL, 1553 HCI_INIT_TIMEOUT); 1554 if (IS_ERR(skb)) { 1555 int err = PTR_ERR(skb); 1556 bt_dev_err(hdev, "CSR: Local version failed (%d)", err); 1557 return err; 1558 } 1559 1560 if (skb->len != sizeof(struct hci_rp_read_local_version)) { 1561 bt_dev_err(hdev, "CSR: Local version length mismatch"); 1562 kfree_skb(skb); 1563 return -EIO; 1564 } 1565 1566 rp = (struct hci_rp_read_local_version *)skb->data; 1567 1568 /* Detect controllers which aren't real CSR ones. */ 1569 if (le16_to_cpu(rp->manufacturer) != 10 || 1570 le16_to_cpu(rp->lmp_subver) == 0x0c5c) { 1571 /* Clear the reset quirk since this is not an actual 1572 * early Bluetooth 1.1 device from CSR. 1573 */ 1574 clear_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks); 1575 1576 /* These fake CSR controllers have all a broken 1577 * stored link key handling and so just disable it. 1578 */ 1579 set_bit(HCI_QUIRK_BROKEN_STORED_LINK_KEY, &hdev->quirks); 1580 } 1581 1582 kfree_skb(skb); 1583 1584 return 0; 1585 } 1586 1587 static const struct firmware *btusb_setup_intel_get_fw(struct hci_dev *hdev, 1588 struct intel_version *ver) 1589 { 1590 const struct firmware *fw; 1591 char fwname[64]; 1592 int ret; 1593 1594 snprintf(fwname, sizeof(fwname), 1595 "intel/ibt-hw-%x.%x.%x-fw-%x.%x.%x.%x.%x.bseq", 1596 ver->hw_platform, ver->hw_variant, ver->hw_revision, 1597 ver->fw_variant, ver->fw_revision, ver->fw_build_num, 1598 ver->fw_build_ww, ver->fw_build_yy); 1599 1600 ret = request_firmware(&fw, fwname, &hdev->dev); 1601 if (ret < 0) { 1602 if (ret == -EINVAL) { 1603 bt_dev_err(hdev, "Intel firmware file request failed (%d)", 1604 ret); 1605 return NULL; 1606 } 1607 1608 bt_dev_err(hdev, "failed to open Intel firmware file: %s (%d)", 1609 fwname, ret); 1610 1611 /* If the correct firmware patch file is not found, use the 1612 * default firmware patch file instead 1613 */ 1614 snprintf(fwname, sizeof(fwname), "intel/ibt-hw-%x.%x.bseq", 1615 ver->hw_platform, ver->hw_variant); 1616 if (request_firmware(&fw, fwname, &hdev->dev) < 0) { 1617 bt_dev_err(hdev, "failed to open default fw file: %s", 1618 fwname); 1619 return NULL; 1620 } 1621 } 1622 1623 bt_dev_info(hdev, "Intel Bluetooth firmware file: %s", fwname); 1624 1625 return fw; 1626 } 1627 1628 static int btusb_setup_intel_patching(struct hci_dev *hdev, 1629 const struct firmware *fw, 1630 const u8 **fw_ptr, int *disable_patch) 1631 { 1632 struct sk_buff *skb; 1633 struct hci_command_hdr *cmd; 1634 const u8 *cmd_param; 1635 struct hci_event_hdr *evt = NULL; 1636 const u8 *evt_param = NULL; 1637 int remain = fw->size - (*fw_ptr - fw->data); 1638 1639 /* The first byte indicates the types of the patch command or event. 1640 * 0x01 means HCI command and 0x02 is HCI event. If the first bytes 1641 * in the current firmware buffer doesn't start with 0x01 or 1642 * the size of remain buffer is smaller than HCI command header, 1643 * the firmware file is corrupted and it should stop the patching 1644 * process. 1645 */ 1646 if (remain > HCI_COMMAND_HDR_SIZE && *fw_ptr[0] != 0x01) { 1647 bt_dev_err(hdev, "Intel fw corrupted: invalid cmd read"); 1648 return -EINVAL; 1649 } 1650 (*fw_ptr)++; 1651 remain--; 1652 1653 cmd = (struct hci_command_hdr *)(*fw_ptr); 1654 *fw_ptr += sizeof(*cmd); 1655 remain -= sizeof(*cmd); 1656 1657 /* Ensure that the remain firmware data is long enough than the length 1658 * of command parameter. If not, the firmware file is corrupted. 1659 */ 1660 if (remain < cmd->plen) { 1661 bt_dev_err(hdev, "Intel fw corrupted: invalid cmd len"); 1662 return -EFAULT; 1663 } 1664 1665 /* If there is a command that loads a patch in the firmware 1666 * file, then enable the patch upon success, otherwise just 1667 * disable the manufacturer mode, for example patch activation 1668 * is not required when the default firmware patch file is used 1669 * because there are no patch data to load. 1670 */ 1671 if (*disable_patch && le16_to_cpu(cmd->opcode) == 0xfc8e) 1672 *disable_patch = 0; 1673 1674 cmd_param = *fw_ptr; 1675 *fw_ptr += cmd->plen; 1676 remain -= cmd->plen; 1677 1678 /* This reads the expected events when the above command is sent to the 1679 * device. Some vendor commands expects more than one events, for 1680 * example command status event followed by vendor specific event. 1681 * For this case, it only keeps the last expected event. so the command 1682 * can be sent with __hci_cmd_sync_ev() which returns the sk_buff of 1683 * last expected event. 1684 */ 1685 while (remain > HCI_EVENT_HDR_SIZE && *fw_ptr[0] == 0x02) { 1686 (*fw_ptr)++; 1687 remain--; 1688 1689 evt = (struct hci_event_hdr *)(*fw_ptr); 1690 *fw_ptr += sizeof(*evt); 1691 remain -= sizeof(*evt); 1692 1693 if (remain < evt->plen) { 1694 bt_dev_err(hdev, "Intel fw corrupted: invalid evt len"); 1695 return -EFAULT; 1696 } 1697 1698 evt_param = *fw_ptr; 1699 *fw_ptr += evt->plen; 1700 remain -= evt->plen; 1701 } 1702 1703 /* Every HCI commands in the firmware file has its correspond event. 1704 * If event is not found or remain is smaller than zero, the firmware 1705 * file is corrupted. 1706 */ 1707 if (!evt || !evt_param || remain < 0) { 1708 bt_dev_err(hdev, "Intel fw corrupted: invalid evt read"); 1709 return -EFAULT; 1710 } 1711 1712 skb = __hci_cmd_sync_ev(hdev, le16_to_cpu(cmd->opcode), cmd->plen, 1713 cmd_param, evt->evt, HCI_INIT_TIMEOUT); 1714 if (IS_ERR(skb)) { 1715 bt_dev_err(hdev, "sending Intel patch command (0x%4.4x) failed (%ld)", 1716 cmd->opcode, PTR_ERR(skb)); 1717 return PTR_ERR(skb); 1718 } 1719 1720 /* It ensures that the returned event matches the event data read from 1721 * the firmware file. At fist, it checks the length and then 1722 * the contents of the event. 1723 */ 1724 if (skb->len != evt->plen) { 1725 bt_dev_err(hdev, "mismatch event length (opcode 0x%4.4x)", 1726 le16_to_cpu(cmd->opcode)); 1727 kfree_skb(skb); 1728 return -EFAULT; 1729 } 1730 1731 if (memcmp(skb->data, evt_param, evt->plen)) { 1732 bt_dev_err(hdev, "mismatch event parameter (opcode 0x%4.4x)", 1733 le16_to_cpu(cmd->opcode)); 1734 kfree_skb(skb); 1735 return -EFAULT; 1736 } 1737 kfree_skb(skb); 1738 1739 return 0; 1740 } 1741 1742 static int btusb_setup_intel(struct hci_dev *hdev) 1743 { 1744 struct sk_buff *skb; 1745 const struct firmware *fw; 1746 const u8 *fw_ptr; 1747 int disable_patch, err; 1748 struct intel_version ver; 1749 1750 BT_DBG("%s", hdev->name); 1751 1752 /* The controller has a bug with the first HCI command sent to it 1753 * returning number of completed commands as zero. This would stall the 1754 * command processing in the Bluetooth core. 1755 * 1756 * As a workaround, send HCI Reset command first which will reset the 1757 * number of completed commands and allow normal command processing 1758 * from now on. 1759 */ 1760 skb = __hci_cmd_sync(hdev, HCI_OP_RESET, 0, NULL, HCI_INIT_TIMEOUT); 1761 if (IS_ERR(skb)) { 1762 bt_dev_err(hdev, "sending initial HCI reset command failed (%ld)", 1763 PTR_ERR(skb)); 1764 return PTR_ERR(skb); 1765 } 1766 kfree_skb(skb); 1767 1768 /* Read Intel specific controller version first to allow selection of 1769 * which firmware file to load. 1770 * 1771 * The returned information are hardware variant and revision plus 1772 * firmware variant, revision and build number. 1773 */ 1774 err = btintel_read_version(hdev, &ver); 1775 if (err) 1776 return err; 1777 1778 bt_dev_info(hdev, "read Intel version: %02x%02x%02x%02x%02x%02x%02x%02x%02x", 1779 ver.hw_platform, ver.hw_variant, ver.hw_revision, 1780 ver.fw_variant, ver.fw_revision, ver.fw_build_num, 1781 ver.fw_build_ww, ver.fw_build_yy, ver.fw_patch_num); 1782 1783 /* fw_patch_num indicates the version of patch the device currently 1784 * have. If there is no patch data in the device, it is always 0x00. 1785 * So, if it is other than 0x00, no need to patch the device again. 1786 */ 1787 if (ver.fw_patch_num) { 1788 bt_dev_info(hdev, "Intel device is already patched. " 1789 "patch num: %02x", ver.fw_patch_num); 1790 goto complete; 1791 } 1792 1793 /* Opens the firmware patch file based on the firmware version read 1794 * from the controller. If it fails to open the matching firmware 1795 * patch file, it tries to open the default firmware patch file. 1796 * If no patch file is found, allow the device to operate without 1797 * a patch. 1798 */ 1799 fw = btusb_setup_intel_get_fw(hdev, &ver); 1800 if (!fw) 1801 goto complete; 1802 fw_ptr = fw->data; 1803 1804 /* Enable the manufacturer mode of the controller. 1805 * Only while this mode is enabled, the driver can download the 1806 * firmware patch data and configuration parameters. 1807 */ 1808 err = btintel_enter_mfg(hdev); 1809 if (err) { 1810 release_firmware(fw); 1811 return err; 1812 } 1813 1814 disable_patch = 1; 1815 1816 /* The firmware data file consists of list of Intel specific HCI 1817 * commands and its expected events. The first byte indicates the 1818 * type of the message, either HCI command or HCI event. 1819 * 1820 * It reads the command and its expected event from the firmware file, 1821 * and send to the controller. Once __hci_cmd_sync_ev() returns, 1822 * the returned event is compared with the event read from the firmware 1823 * file and it will continue until all the messages are downloaded to 1824 * the controller. 1825 * 1826 * Once the firmware patching is completed successfully, 1827 * the manufacturer mode is disabled with reset and activating the 1828 * downloaded patch. 1829 * 1830 * If the firmware patching fails, the manufacturer mode is 1831 * disabled with reset and deactivating the patch. 1832 * 1833 * If the default patch file is used, no reset is done when disabling 1834 * the manufacturer. 1835 */ 1836 while (fw->size > fw_ptr - fw->data) { 1837 int ret; 1838 1839 ret = btusb_setup_intel_patching(hdev, fw, &fw_ptr, 1840 &disable_patch); 1841 if (ret < 0) 1842 goto exit_mfg_deactivate; 1843 } 1844 1845 release_firmware(fw); 1846 1847 if (disable_patch) 1848 goto exit_mfg_disable; 1849 1850 /* Patching completed successfully and disable the manufacturer mode 1851 * with reset and activate the downloaded firmware patches. 1852 */ 1853 err = btintel_exit_mfg(hdev, true, true); 1854 if (err) 1855 return err; 1856 1857 bt_dev_info(hdev, "Intel firmware patch completed and activated"); 1858 1859 goto complete; 1860 1861 exit_mfg_disable: 1862 /* Disable the manufacturer mode without reset */ 1863 err = btintel_exit_mfg(hdev, false, false); 1864 if (err) 1865 return err; 1866 1867 bt_dev_info(hdev, "Intel firmware patch completed"); 1868 1869 goto complete; 1870 1871 exit_mfg_deactivate: 1872 release_firmware(fw); 1873 1874 /* Patching failed. Disable the manufacturer mode with reset and 1875 * deactivate the downloaded firmware patches. 1876 */ 1877 err = btintel_exit_mfg(hdev, true, false); 1878 if (err) 1879 return err; 1880 1881 bt_dev_info(hdev, "Intel firmware patch completed and deactivated"); 1882 1883 complete: 1884 /* Set the event mask for Intel specific vendor events. This enables 1885 * a few extra events that are useful during general operation. 1886 */ 1887 btintel_set_event_mask_mfg(hdev, false); 1888 1889 btintel_check_bdaddr(hdev); 1890 return 0; 1891 } 1892 1893 static int inject_cmd_complete(struct hci_dev *hdev, __u16 opcode) 1894 { 1895 struct sk_buff *skb; 1896 struct hci_event_hdr *hdr; 1897 struct hci_ev_cmd_complete *evt; 1898 1899 skb = bt_skb_alloc(sizeof(*hdr) + sizeof(*evt) + 1, GFP_KERNEL); 1900 if (!skb) 1901 return -ENOMEM; 1902 1903 hdr = skb_put(skb, sizeof(*hdr)); 1904 hdr->evt = HCI_EV_CMD_COMPLETE; 1905 hdr->plen = sizeof(*evt) + 1; 1906 1907 evt = skb_put(skb, sizeof(*evt)); 1908 evt->ncmd = 0x01; 1909 evt->opcode = cpu_to_le16(opcode); 1910 1911 skb_put_u8(skb, 0x00); 1912 1913 hci_skb_pkt_type(skb) = HCI_EVENT_PKT; 1914 1915 return hci_recv_frame(hdev, skb); 1916 } 1917 1918 static int btusb_recv_bulk_intel(struct btusb_data *data, void *buffer, 1919 int count) 1920 { 1921 /* When the device is in bootloader mode, then it can send 1922 * events via the bulk endpoint. These events are treated the 1923 * same way as the ones received from the interrupt endpoint. 1924 */ 1925 if (test_bit(BTUSB_BOOTLOADER, &data->flags)) 1926 return btusb_recv_intr(data, buffer, count); 1927 1928 return btusb_recv_bulk(data, buffer, count); 1929 } 1930 1931 static void btusb_intel_bootup(struct btusb_data *data, const void *ptr, 1932 unsigned int len) 1933 { 1934 const struct intel_bootup *evt = ptr; 1935 1936 if (len != sizeof(*evt)) 1937 return; 1938 1939 if (test_and_clear_bit(BTUSB_BOOTING, &data->flags)) 1940 wake_up_bit(&data->flags, BTUSB_BOOTING); 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 wake_up_bit(&data->flags, BTUSB_DOWNLOADING); 1957 } 1958 1959 static int btusb_recv_event_intel(struct hci_dev *hdev, struct sk_buff *skb) 1960 { 1961 struct btusb_data *data = hci_get_drvdata(hdev); 1962 1963 if (test_bit(BTUSB_BOOTLOADER, &data->flags)) { 1964 struct hci_event_hdr *hdr = (void *)skb->data; 1965 1966 if (skb->len > HCI_EVENT_HDR_SIZE && hdr->evt == 0xff && 1967 hdr->plen > 0) { 1968 const void *ptr = skb->data + HCI_EVENT_HDR_SIZE + 1; 1969 unsigned int len = skb->len - HCI_EVENT_HDR_SIZE - 1; 1970 1971 switch (skb->data[2]) { 1972 case 0x02: 1973 /* When switching to the operational firmware 1974 * the device sends a vendor specific event 1975 * indicating that the bootup completed. 1976 */ 1977 btusb_intel_bootup(data, ptr, len); 1978 break; 1979 case 0x06: 1980 /* When the firmware loading completes the 1981 * device sends out a vendor specific event 1982 * indicating the result of the firmware 1983 * loading. 1984 */ 1985 btusb_intel_secure_send_result(data, ptr, len); 1986 break; 1987 } 1988 } 1989 } 1990 1991 return hci_recv_frame(hdev, skb); 1992 } 1993 1994 static int btusb_send_frame_intel(struct hci_dev *hdev, struct sk_buff *skb) 1995 { 1996 struct btusb_data *data = hci_get_drvdata(hdev); 1997 struct urb *urb; 1998 1999 BT_DBG("%s", hdev->name); 2000 2001 switch (hci_skb_pkt_type(skb)) { 2002 case HCI_COMMAND_PKT: 2003 if (test_bit(BTUSB_BOOTLOADER, &data->flags)) { 2004 struct hci_command_hdr *cmd = (void *)skb->data; 2005 __u16 opcode = le16_to_cpu(cmd->opcode); 2006 2007 /* When in bootloader mode and the command 0xfc09 2008 * is received, it needs to be send down the 2009 * bulk endpoint. So allocate a bulk URB instead. 2010 */ 2011 if (opcode == 0xfc09) 2012 urb = alloc_bulk_urb(hdev, skb); 2013 else 2014 urb = alloc_ctrl_urb(hdev, skb); 2015 2016 /* When the 0xfc01 command is issued to boot into 2017 * the operational firmware, it will actually not 2018 * send a command complete event. To keep the flow 2019 * control working inject that event here. 2020 */ 2021 if (opcode == 0xfc01) 2022 inject_cmd_complete(hdev, opcode); 2023 } else { 2024 urb = alloc_ctrl_urb(hdev, skb); 2025 } 2026 if (IS_ERR(urb)) 2027 return PTR_ERR(urb); 2028 2029 hdev->stat.cmd_tx++; 2030 return submit_or_queue_tx_urb(hdev, urb); 2031 2032 case HCI_ACLDATA_PKT: 2033 urb = alloc_bulk_urb(hdev, skb); 2034 if (IS_ERR(urb)) 2035 return PTR_ERR(urb); 2036 2037 hdev->stat.acl_tx++; 2038 return submit_or_queue_tx_urb(hdev, urb); 2039 2040 case HCI_SCODATA_PKT: 2041 if (hci_conn_num(hdev, SCO_LINK) < 1) 2042 return -ENODEV; 2043 2044 urb = alloc_isoc_urb(hdev, skb); 2045 if (IS_ERR(urb)) 2046 return PTR_ERR(urb); 2047 2048 hdev->stat.sco_tx++; 2049 return submit_tx_urb(hdev, urb); 2050 } 2051 2052 return -EILSEQ; 2053 } 2054 2055 static bool btusb_setup_intel_new_get_fw_name(struct intel_version *ver, 2056 struct intel_boot_params *params, 2057 char *fw_name, size_t len, 2058 const char *suffix) 2059 { 2060 switch (ver->hw_variant) { 2061 case 0x0b: /* SfP */ 2062 case 0x0c: /* WsP */ 2063 snprintf(fw_name, len, "intel/ibt-%u-%u.%s", 2064 le16_to_cpu(ver->hw_variant), 2065 le16_to_cpu(params->dev_revid), 2066 suffix); 2067 break; 2068 case 0x11: /* JfP */ 2069 case 0x12: /* ThP */ 2070 case 0x13: /* HrP */ 2071 case 0x14: /* CcP */ 2072 snprintf(fw_name, len, "intel/ibt-%u-%u-%u.%s", 2073 le16_to_cpu(ver->hw_variant), 2074 le16_to_cpu(ver->hw_revision), 2075 le16_to_cpu(ver->fw_revision), 2076 suffix); 2077 break; 2078 default: 2079 return false; 2080 } 2081 return true; 2082 } 2083 2084 static int btusb_setup_intel_new(struct hci_dev *hdev) 2085 { 2086 struct btusb_data *data = hci_get_drvdata(hdev); 2087 struct intel_version ver; 2088 struct intel_boot_params params; 2089 const struct firmware *fw; 2090 u32 boot_param; 2091 char fwname[64]; 2092 ktime_t calltime, delta, rettime; 2093 unsigned long long duration; 2094 int err; 2095 2096 BT_DBG("%s", hdev->name); 2097 2098 /* Set the default boot parameter to 0x0 and it is updated to 2099 * SKU specific boot parameter after reading Intel_Write_Boot_Params 2100 * command while downloading the firmware. 2101 */ 2102 boot_param = 0x00000000; 2103 2104 calltime = ktime_get(); 2105 2106 /* Read the Intel version information to determine if the device 2107 * is in bootloader mode or if it already has operational firmware 2108 * loaded. 2109 */ 2110 err = btintel_read_version(hdev, &ver); 2111 if (err) 2112 return err; 2113 2114 /* The hardware platform number has a fixed value of 0x37 and 2115 * for now only accept this single value. 2116 */ 2117 if (ver.hw_platform != 0x37) { 2118 bt_dev_err(hdev, "Unsupported Intel hardware platform (%u)", 2119 ver.hw_platform); 2120 return -EINVAL; 2121 } 2122 2123 /* Check for supported iBT hardware variants of this firmware 2124 * loading method. 2125 * 2126 * This check has been put in place to ensure correct forward 2127 * compatibility options when newer hardware variants come along. 2128 */ 2129 switch (ver.hw_variant) { 2130 case 0x0b: /* SfP */ 2131 case 0x0c: /* WsP */ 2132 case 0x11: /* JfP */ 2133 case 0x12: /* ThP */ 2134 case 0x13: /* HrP */ 2135 case 0x14: /* CcP */ 2136 break; 2137 default: 2138 bt_dev_err(hdev, "Unsupported Intel hardware variant (%u)", 2139 ver.hw_variant); 2140 return -EINVAL; 2141 } 2142 2143 btintel_version_info(hdev, &ver); 2144 2145 /* The firmware variant determines if the device is in bootloader 2146 * mode or is running operational firmware. The value 0x06 identifies 2147 * the bootloader and the value 0x23 identifies the operational 2148 * firmware. 2149 * 2150 * When the operational firmware is already present, then only 2151 * the check for valid Bluetooth device address is needed. This 2152 * determines if the device will be added as configured or 2153 * unconfigured controller. 2154 * 2155 * It is not possible to use the Secure Boot Parameters in this 2156 * case since that command is only available in bootloader mode. 2157 */ 2158 if (ver.fw_variant == 0x23) { 2159 clear_bit(BTUSB_BOOTLOADER, &data->flags); 2160 btintel_check_bdaddr(hdev); 2161 return 0; 2162 } 2163 2164 /* If the device is not in bootloader mode, then the only possible 2165 * choice is to return an error and abort the device initialization. 2166 */ 2167 if (ver.fw_variant != 0x06) { 2168 bt_dev_err(hdev, "Unsupported Intel firmware variant (%u)", 2169 ver.fw_variant); 2170 return -ENODEV; 2171 } 2172 2173 /* Read the secure boot parameters to identify the operating 2174 * details of the bootloader. 2175 */ 2176 err = btintel_read_boot_params(hdev, ¶ms); 2177 if (err) 2178 return err; 2179 2180 /* It is required that every single firmware fragment is acknowledged 2181 * with a command complete event. If the boot parameters indicate 2182 * that this bootloader does not send them, then abort the setup. 2183 */ 2184 if (params.limited_cce != 0x00) { 2185 bt_dev_err(hdev, "Unsupported Intel firmware loading method (%u)", 2186 params.limited_cce); 2187 return -EINVAL; 2188 } 2189 2190 /* If the OTP has no valid Bluetooth device address, then there will 2191 * also be no valid address for the operational firmware. 2192 */ 2193 if (!bacmp(¶ms.otp_bdaddr, BDADDR_ANY)) { 2194 bt_dev_info(hdev, "No device address configured"); 2195 set_bit(HCI_QUIRK_INVALID_BDADDR, &hdev->quirks); 2196 } 2197 2198 /* With this Intel bootloader only the hardware variant and device 2199 * revision information are used to select the right firmware for SfP 2200 * and WsP. 2201 * 2202 * The firmware filename is ibt-<hw_variant>-<dev_revid>.sfi. 2203 * 2204 * Currently the supported hardware variants are: 2205 * 11 (0x0b) for iBT3.0 (LnP/SfP) 2206 * 12 (0x0c) for iBT3.5 (WsP) 2207 * 2208 * For ThP/JfP and for future SKU's, the FW name varies based on HW 2209 * variant, HW revision and FW revision, as these are dependent on CNVi 2210 * and RF Combination. 2211 * 2212 * 17 (0x11) for iBT3.5 (JfP) 2213 * 18 (0x12) for iBT3.5 (ThP) 2214 * 2215 * The firmware file name for these will be 2216 * ibt-<hw_variant>-<hw_revision>-<fw_revision>.sfi. 2217 * 2218 */ 2219 err = btusb_setup_intel_new_get_fw_name(&ver, ¶ms, fwname, 2220 sizeof(fwname), "sfi"); 2221 if (!err) { 2222 bt_dev_err(hdev, "Unsupported Intel firmware naming"); 2223 return -EINVAL; 2224 } 2225 2226 err = request_firmware(&fw, fwname, &hdev->dev); 2227 if (err < 0) { 2228 bt_dev_err(hdev, "Failed to load Intel firmware file (%d)", err); 2229 return err; 2230 } 2231 2232 bt_dev_info(hdev, "Found device firmware: %s", fwname); 2233 2234 /* Save the DDC file name for later use to apply once the firmware 2235 * downloading is done. 2236 */ 2237 err = btusb_setup_intel_new_get_fw_name(&ver, ¶ms, fwname, 2238 sizeof(fwname), "ddc"); 2239 if (!err) { 2240 bt_dev_err(hdev, "Unsupported Intel firmware naming"); 2241 return -EINVAL; 2242 } 2243 2244 if (fw->size < 644) { 2245 bt_dev_err(hdev, "Invalid size of firmware file (%zu)", 2246 fw->size); 2247 err = -EBADF; 2248 goto done; 2249 } 2250 2251 set_bit(BTUSB_DOWNLOADING, &data->flags); 2252 2253 /* Start firmware downloading and get boot parameter */ 2254 err = btintel_download_firmware(hdev, fw, &boot_param); 2255 if (err < 0) 2256 goto done; 2257 2258 set_bit(BTUSB_FIRMWARE_LOADED, &data->flags); 2259 2260 bt_dev_info(hdev, "Waiting for firmware download to complete"); 2261 2262 /* Before switching the device into operational mode and with that 2263 * booting the loaded firmware, wait for the bootloader notification 2264 * that all fragments have been successfully received. 2265 * 2266 * When the event processing receives the notification, then the 2267 * BTUSB_DOWNLOADING flag will be cleared. 2268 * 2269 * The firmware loading should not take longer than 5 seconds 2270 * and thus just timeout if that happens and fail the setup 2271 * of this device. 2272 */ 2273 err = wait_on_bit_timeout(&data->flags, BTUSB_DOWNLOADING, 2274 TASK_INTERRUPTIBLE, 2275 msecs_to_jiffies(5000)); 2276 if (err == -EINTR) { 2277 bt_dev_err(hdev, "Firmware loading interrupted"); 2278 goto done; 2279 } 2280 2281 if (err) { 2282 bt_dev_err(hdev, "Firmware loading timeout"); 2283 err = -ETIMEDOUT; 2284 goto done; 2285 } 2286 2287 if (test_bit(BTUSB_FIRMWARE_FAILED, &data->flags)) { 2288 bt_dev_err(hdev, "Firmware loading failed"); 2289 err = -ENOEXEC; 2290 goto done; 2291 } 2292 2293 rettime = ktime_get(); 2294 delta = ktime_sub(rettime, calltime); 2295 duration = (unsigned long long) ktime_to_ns(delta) >> 10; 2296 2297 bt_dev_info(hdev, "Firmware loaded in %llu usecs", duration); 2298 2299 done: 2300 release_firmware(fw); 2301 2302 if (err < 0) 2303 return err; 2304 2305 calltime = ktime_get(); 2306 2307 set_bit(BTUSB_BOOTING, &data->flags); 2308 2309 err = btintel_send_intel_reset(hdev, boot_param); 2310 if (err) 2311 return err; 2312 2313 /* The bootloader will not indicate when the device is ready. This 2314 * is done by the operational firmware sending bootup notification. 2315 * 2316 * Booting into operational firmware should not take longer than 2317 * 1 second. However if that happens, then just fail the setup 2318 * since something went wrong. 2319 */ 2320 bt_dev_info(hdev, "Waiting for device to boot"); 2321 2322 err = wait_on_bit_timeout(&data->flags, BTUSB_BOOTING, 2323 TASK_INTERRUPTIBLE, 2324 msecs_to_jiffies(1000)); 2325 2326 if (err == -EINTR) { 2327 bt_dev_err(hdev, "Device boot interrupted"); 2328 return -EINTR; 2329 } 2330 2331 if (err) { 2332 bt_dev_err(hdev, "Device boot timeout"); 2333 return -ETIMEDOUT; 2334 } 2335 2336 rettime = ktime_get(); 2337 delta = ktime_sub(rettime, calltime); 2338 duration = (unsigned long long) ktime_to_ns(delta) >> 10; 2339 2340 bt_dev_info(hdev, "Device booted in %llu usecs", duration); 2341 2342 clear_bit(BTUSB_BOOTLOADER, &data->flags); 2343 2344 /* Once the device is running in operational mode, it needs to apply 2345 * the device configuration (DDC) parameters. 2346 * 2347 * The device can work without DDC parameters, so even if it fails 2348 * to load the file, no need to fail the setup. 2349 */ 2350 btintel_load_ddc_config(hdev, fwname); 2351 2352 /* Set the event mask for Intel specific vendor events. This enables 2353 * a few extra events that are useful during general operation. It 2354 * does not enable any debugging related events. 2355 * 2356 * The device will function correctly without these events enabled 2357 * and thus no need to fail the setup. 2358 */ 2359 btintel_set_event_mask(hdev, false); 2360 2361 return 0; 2362 } 2363 2364 static int btusb_shutdown_intel(struct hci_dev *hdev) 2365 { 2366 struct sk_buff *skb; 2367 long ret; 2368 2369 /* In the shutdown sequence where Bluetooth is turned off followed 2370 * by WiFi being turned off, turning WiFi back on causes issue with 2371 * the RF calibration. 2372 * 2373 * To ensure that any RF activity has been stopped, issue HCI Reset 2374 * command to clear all ongoing activity including advertising, 2375 * scanning etc. 2376 */ 2377 skb = __hci_cmd_sync(hdev, HCI_OP_RESET, 0, NULL, HCI_INIT_TIMEOUT); 2378 if (IS_ERR(skb)) { 2379 ret = PTR_ERR(skb); 2380 bt_dev_err(hdev, "HCI reset during shutdown failed"); 2381 return ret; 2382 } 2383 kfree_skb(skb); 2384 2385 /* Some platforms have an issue with BT LED when the interface is 2386 * down or BT radio is turned off, which takes 5 seconds to BT LED 2387 * goes off. This command turns off the BT LED immediately. 2388 */ 2389 skb = __hci_cmd_sync(hdev, 0xfc3f, 0, NULL, HCI_INIT_TIMEOUT); 2390 if (IS_ERR(skb)) { 2391 ret = PTR_ERR(skb); 2392 bt_dev_err(hdev, "turning off Intel device LED failed"); 2393 return ret; 2394 } 2395 kfree_skb(skb); 2396 2397 return 0; 2398 } 2399 2400 #ifdef CONFIG_PM 2401 /* Configure an out-of-band gpio as wake-up pin, if specified in device tree */ 2402 static int marvell_config_oob_wake(struct hci_dev *hdev) 2403 { 2404 struct sk_buff *skb; 2405 struct btusb_data *data = hci_get_drvdata(hdev); 2406 struct device *dev = &data->udev->dev; 2407 u16 pin, gap, opcode; 2408 int ret; 2409 u8 cmd[5]; 2410 2411 /* Move on if no wakeup pin specified */ 2412 if (of_property_read_u16(dev->of_node, "marvell,wakeup-pin", &pin) || 2413 of_property_read_u16(dev->of_node, "marvell,wakeup-gap-ms", &gap)) 2414 return 0; 2415 2416 /* Vendor specific command to configure a GPIO as wake-up pin */ 2417 opcode = hci_opcode_pack(0x3F, 0x59); 2418 cmd[0] = opcode & 0xFF; 2419 cmd[1] = opcode >> 8; 2420 cmd[2] = 2; /* length of parameters that follow */ 2421 cmd[3] = pin; 2422 cmd[4] = gap; /* time in ms, for which wakeup pin should be asserted */ 2423 2424 skb = bt_skb_alloc(sizeof(cmd), GFP_KERNEL); 2425 if (!skb) { 2426 bt_dev_err(hdev, "%s: No memory\n", __func__); 2427 return -ENOMEM; 2428 } 2429 2430 skb_put_data(skb, cmd, sizeof(cmd)); 2431 hci_skb_pkt_type(skb) = HCI_COMMAND_PKT; 2432 2433 ret = btusb_send_frame(hdev, skb); 2434 if (ret) { 2435 bt_dev_err(hdev, "%s: configuration failed\n", __func__); 2436 kfree_skb(skb); 2437 return ret; 2438 } 2439 2440 return 0; 2441 } 2442 #endif 2443 2444 static int btusb_set_bdaddr_marvell(struct hci_dev *hdev, 2445 const bdaddr_t *bdaddr) 2446 { 2447 struct sk_buff *skb; 2448 u8 buf[8]; 2449 long ret; 2450 2451 buf[0] = 0xfe; 2452 buf[1] = sizeof(bdaddr_t); 2453 memcpy(buf + 2, bdaddr, sizeof(bdaddr_t)); 2454 2455 skb = __hci_cmd_sync(hdev, 0xfc22, sizeof(buf), buf, HCI_INIT_TIMEOUT); 2456 if (IS_ERR(skb)) { 2457 ret = PTR_ERR(skb); 2458 bt_dev_err(hdev, "changing Marvell device address failed (%ld)", 2459 ret); 2460 return ret; 2461 } 2462 kfree_skb(skb); 2463 2464 return 0; 2465 } 2466 2467 static int btusb_set_bdaddr_ath3012(struct hci_dev *hdev, 2468 const bdaddr_t *bdaddr) 2469 { 2470 struct sk_buff *skb; 2471 u8 buf[10]; 2472 long ret; 2473 2474 buf[0] = 0x01; 2475 buf[1] = 0x01; 2476 buf[2] = 0x00; 2477 buf[3] = sizeof(bdaddr_t); 2478 memcpy(buf + 4, bdaddr, sizeof(bdaddr_t)); 2479 2480 skb = __hci_cmd_sync(hdev, 0xfc0b, sizeof(buf), buf, HCI_INIT_TIMEOUT); 2481 if (IS_ERR(skb)) { 2482 ret = PTR_ERR(skb); 2483 bt_dev_err(hdev, "Change address command failed (%ld)", ret); 2484 return ret; 2485 } 2486 kfree_skb(skb); 2487 2488 return 0; 2489 } 2490 2491 #define QCA_DFU_PACKET_LEN 4096 2492 2493 #define QCA_GET_TARGET_VERSION 0x09 2494 #define QCA_CHECK_STATUS 0x05 2495 #define QCA_DFU_DOWNLOAD 0x01 2496 2497 #define QCA_SYSCFG_UPDATED 0x40 2498 #define QCA_PATCH_UPDATED 0x80 2499 #define QCA_DFU_TIMEOUT 3000 2500 2501 struct qca_version { 2502 __le32 rom_version; 2503 __le32 patch_version; 2504 __le32 ram_version; 2505 __le32 ref_clock; 2506 __u8 reserved[4]; 2507 } __packed; 2508 2509 struct qca_rampatch_version { 2510 __le16 rom_version; 2511 __le16 patch_version; 2512 } __packed; 2513 2514 struct qca_device_info { 2515 u32 rom_version; 2516 u8 rampatch_hdr; /* length of header in rampatch */ 2517 u8 nvm_hdr; /* length of header in NVM */ 2518 u8 ver_offset; /* offset of version structure in rampatch */ 2519 }; 2520 2521 static const struct qca_device_info qca_devices_table[] = { 2522 { 0x00000100, 20, 4, 10 }, /* Rome 1.0 */ 2523 { 0x00000101, 20, 4, 10 }, /* Rome 1.1 */ 2524 { 0x00000200, 28, 4, 18 }, /* Rome 2.0 */ 2525 { 0x00000201, 28, 4, 18 }, /* Rome 2.1 */ 2526 { 0x00000300, 28, 4, 18 }, /* Rome 3.0 */ 2527 { 0x00000302, 28, 4, 18 }, /* Rome 3.2 */ 2528 }; 2529 2530 static int btusb_qca_send_vendor_req(struct usb_device *udev, u8 request, 2531 void *data, u16 size) 2532 { 2533 int pipe, err; 2534 u8 *buf; 2535 2536 buf = kmalloc(size, GFP_KERNEL); 2537 if (!buf) 2538 return -ENOMEM; 2539 2540 /* Found some of USB hosts have IOT issues with ours so that we should 2541 * not wait until HCI layer is ready. 2542 */ 2543 pipe = usb_rcvctrlpipe(udev, 0); 2544 err = usb_control_msg(udev, pipe, request, USB_TYPE_VENDOR | USB_DIR_IN, 2545 0, 0, buf, size, USB_CTRL_SET_TIMEOUT); 2546 if (err < 0) { 2547 dev_err(&udev->dev, "Failed to access otp area (%d)", err); 2548 goto done; 2549 } 2550 2551 memcpy(data, buf, size); 2552 2553 done: 2554 kfree(buf); 2555 2556 return err; 2557 } 2558 2559 static int btusb_setup_qca_download_fw(struct hci_dev *hdev, 2560 const struct firmware *firmware, 2561 size_t hdr_size) 2562 { 2563 struct btusb_data *btdata = hci_get_drvdata(hdev); 2564 struct usb_device *udev = btdata->udev; 2565 size_t count, size, sent = 0; 2566 int pipe, len, err; 2567 u8 *buf; 2568 2569 buf = kmalloc(QCA_DFU_PACKET_LEN, GFP_KERNEL); 2570 if (!buf) 2571 return -ENOMEM; 2572 2573 count = firmware->size; 2574 2575 size = min_t(size_t, count, hdr_size); 2576 memcpy(buf, firmware->data, size); 2577 2578 /* USB patches should go down to controller through USB path 2579 * because binary format fits to go down through USB channel. 2580 * USB control path is for patching headers and USB bulk is for 2581 * patch body. 2582 */ 2583 pipe = usb_sndctrlpipe(udev, 0); 2584 err = usb_control_msg(udev, pipe, QCA_DFU_DOWNLOAD, USB_TYPE_VENDOR, 2585 0, 0, buf, size, USB_CTRL_SET_TIMEOUT); 2586 if (err < 0) { 2587 bt_dev_err(hdev, "Failed to send headers (%d)", err); 2588 goto done; 2589 } 2590 2591 sent += size; 2592 count -= size; 2593 2594 while (count) { 2595 size = min_t(size_t, count, QCA_DFU_PACKET_LEN); 2596 2597 memcpy(buf, firmware->data + sent, size); 2598 2599 pipe = usb_sndbulkpipe(udev, 0x02); 2600 err = usb_bulk_msg(udev, pipe, buf, size, &len, 2601 QCA_DFU_TIMEOUT); 2602 if (err < 0) { 2603 bt_dev_err(hdev, "Failed to send body at %zd of %zd (%d)", 2604 sent, firmware->size, err); 2605 break; 2606 } 2607 2608 if (size != len) { 2609 bt_dev_err(hdev, "Failed to get bulk buffer"); 2610 err = -EILSEQ; 2611 break; 2612 } 2613 2614 sent += size; 2615 count -= size; 2616 } 2617 2618 done: 2619 kfree(buf); 2620 return err; 2621 } 2622 2623 static int btusb_setup_qca_load_rampatch(struct hci_dev *hdev, 2624 struct qca_version *ver, 2625 const struct qca_device_info *info) 2626 { 2627 struct qca_rampatch_version *rver; 2628 const struct firmware *fw; 2629 u32 ver_rom, ver_patch; 2630 u16 rver_rom, rver_patch; 2631 char fwname[64]; 2632 int err; 2633 2634 ver_rom = le32_to_cpu(ver->rom_version); 2635 ver_patch = le32_to_cpu(ver->patch_version); 2636 2637 snprintf(fwname, sizeof(fwname), "qca/rampatch_usb_%08x.bin", ver_rom); 2638 2639 err = request_firmware(&fw, fwname, &hdev->dev); 2640 if (err) { 2641 bt_dev_err(hdev, "failed to request rampatch file: %s (%d)", 2642 fwname, err); 2643 return err; 2644 } 2645 2646 bt_dev_info(hdev, "using rampatch file: %s", fwname); 2647 2648 rver = (struct qca_rampatch_version *)(fw->data + info->ver_offset); 2649 rver_rom = le16_to_cpu(rver->rom_version); 2650 rver_patch = le16_to_cpu(rver->patch_version); 2651 2652 bt_dev_info(hdev, "QCA: patch rome 0x%x build 0x%x, " 2653 "firmware rome 0x%x build 0x%x", 2654 rver_rom, rver_patch, ver_rom, ver_patch); 2655 2656 if (rver_rom != ver_rom || rver_patch <= ver_patch) { 2657 bt_dev_err(hdev, "rampatch file version did not match with firmware"); 2658 err = -EINVAL; 2659 goto done; 2660 } 2661 2662 err = btusb_setup_qca_download_fw(hdev, fw, info->rampatch_hdr); 2663 2664 done: 2665 release_firmware(fw); 2666 2667 return err; 2668 } 2669 2670 static int btusb_setup_qca_load_nvm(struct hci_dev *hdev, 2671 struct qca_version *ver, 2672 const struct qca_device_info *info) 2673 { 2674 const struct firmware *fw; 2675 char fwname[64]; 2676 int err; 2677 2678 snprintf(fwname, sizeof(fwname), "qca/nvm_usb_%08x.bin", 2679 le32_to_cpu(ver->rom_version)); 2680 2681 err = request_firmware(&fw, fwname, &hdev->dev); 2682 if (err) { 2683 bt_dev_err(hdev, "failed to request NVM file: %s (%d)", 2684 fwname, err); 2685 return err; 2686 } 2687 2688 bt_dev_info(hdev, "using NVM file: %s", fwname); 2689 2690 err = btusb_setup_qca_download_fw(hdev, fw, info->nvm_hdr); 2691 2692 release_firmware(fw); 2693 2694 return err; 2695 } 2696 2697 /* identify the ROM version and check whether patches are needed */ 2698 static bool btusb_qca_need_patch(struct usb_device *udev) 2699 { 2700 struct qca_version ver; 2701 2702 if (btusb_qca_send_vendor_req(udev, QCA_GET_TARGET_VERSION, &ver, 2703 sizeof(ver)) < 0) 2704 return false; 2705 /* only low ROM versions need patches */ 2706 return !(le32_to_cpu(ver.rom_version) & ~0xffffU); 2707 } 2708 2709 static int btusb_setup_qca(struct hci_dev *hdev) 2710 { 2711 struct btusb_data *btdata = hci_get_drvdata(hdev); 2712 struct usb_device *udev = btdata->udev; 2713 const struct qca_device_info *info = NULL; 2714 struct qca_version ver; 2715 u32 ver_rom; 2716 u8 status; 2717 int i, err; 2718 2719 err = btusb_qca_send_vendor_req(udev, QCA_GET_TARGET_VERSION, &ver, 2720 sizeof(ver)); 2721 if (err < 0) 2722 return err; 2723 2724 ver_rom = le32_to_cpu(ver.rom_version); 2725 /* Don't care about high ROM versions */ 2726 if (ver_rom & ~0xffffU) 2727 return 0; 2728 2729 for (i = 0; i < ARRAY_SIZE(qca_devices_table); i++) { 2730 if (ver_rom == qca_devices_table[i].rom_version) 2731 info = &qca_devices_table[i]; 2732 } 2733 if (!info) { 2734 bt_dev_err(hdev, "don't support firmware rome 0x%x", ver_rom); 2735 return -ENODEV; 2736 } 2737 2738 err = btusb_qca_send_vendor_req(udev, QCA_CHECK_STATUS, &status, 2739 sizeof(status)); 2740 if (err < 0) 2741 return err; 2742 2743 if (!(status & QCA_PATCH_UPDATED)) { 2744 err = btusb_setup_qca_load_rampatch(hdev, &ver, info); 2745 if (err < 0) 2746 return err; 2747 } 2748 2749 if (!(status & QCA_SYSCFG_UPDATED)) { 2750 err = btusb_setup_qca_load_nvm(hdev, &ver, info); 2751 if (err < 0) 2752 return err; 2753 } 2754 2755 return 0; 2756 } 2757 2758 #ifdef CONFIG_BT_HCIBTUSB_BCM 2759 static inline int __set_diag_interface(struct hci_dev *hdev) 2760 { 2761 struct btusb_data *data = hci_get_drvdata(hdev); 2762 struct usb_interface *intf = data->diag; 2763 int i; 2764 2765 if (!data->diag) 2766 return -ENODEV; 2767 2768 data->diag_tx_ep = NULL; 2769 data->diag_rx_ep = NULL; 2770 2771 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) { 2772 struct usb_endpoint_descriptor *ep_desc; 2773 2774 ep_desc = &intf->cur_altsetting->endpoint[i].desc; 2775 2776 if (!data->diag_tx_ep && usb_endpoint_is_bulk_out(ep_desc)) { 2777 data->diag_tx_ep = ep_desc; 2778 continue; 2779 } 2780 2781 if (!data->diag_rx_ep && usb_endpoint_is_bulk_in(ep_desc)) { 2782 data->diag_rx_ep = ep_desc; 2783 continue; 2784 } 2785 } 2786 2787 if (!data->diag_tx_ep || !data->diag_rx_ep) { 2788 bt_dev_err(hdev, "invalid diagnostic descriptors"); 2789 return -ENODEV; 2790 } 2791 2792 return 0; 2793 } 2794 2795 static struct urb *alloc_diag_urb(struct hci_dev *hdev, bool enable) 2796 { 2797 struct btusb_data *data = hci_get_drvdata(hdev); 2798 struct sk_buff *skb; 2799 struct urb *urb; 2800 unsigned int pipe; 2801 2802 if (!data->diag_tx_ep) 2803 return ERR_PTR(-ENODEV); 2804 2805 urb = usb_alloc_urb(0, GFP_KERNEL); 2806 if (!urb) 2807 return ERR_PTR(-ENOMEM); 2808 2809 skb = bt_skb_alloc(2, GFP_KERNEL); 2810 if (!skb) { 2811 usb_free_urb(urb); 2812 return ERR_PTR(-ENOMEM); 2813 } 2814 2815 skb_put_u8(skb, 0xf0); 2816 skb_put_u8(skb, enable); 2817 2818 pipe = usb_sndbulkpipe(data->udev, data->diag_tx_ep->bEndpointAddress); 2819 2820 usb_fill_bulk_urb(urb, data->udev, pipe, 2821 skb->data, skb->len, btusb_tx_complete, skb); 2822 2823 skb->dev = (void *)hdev; 2824 2825 return urb; 2826 } 2827 2828 static int btusb_bcm_set_diag(struct hci_dev *hdev, bool enable) 2829 { 2830 struct btusb_data *data = hci_get_drvdata(hdev); 2831 struct urb *urb; 2832 2833 if (!data->diag) 2834 return -ENODEV; 2835 2836 if (!test_bit(HCI_RUNNING, &hdev->flags)) 2837 return -ENETDOWN; 2838 2839 urb = alloc_diag_urb(hdev, enable); 2840 if (IS_ERR(urb)) 2841 return PTR_ERR(urb); 2842 2843 return submit_or_queue_tx_urb(hdev, urb); 2844 } 2845 #endif 2846 2847 #ifdef CONFIG_PM 2848 static irqreturn_t btusb_oob_wake_handler(int irq, void *priv) 2849 { 2850 struct btusb_data *data = priv; 2851 2852 pm_wakeup_event(&data->udev->dev, 0); 2853 pm_system_wakeup(); 2854 2855 /* Disable only if not already disabled (keep it balanced) */ 2856 if (test_and_clear_bit(BTUSB_OOB_WAKE_ENABLED, &data->flags)) { 2857 disable_irq_nosync(irq); 2858 disable_irq_wake(irq); 2859 } 2860 return IRQ_HANDLED; 2861 } 2862 2863 static const struct of_device_id btusb_match_table[] = { 2864 { .compatible = "usb1286,204e" }, 2865 { } 2866 }; 2867 MODULE_DEVICE_TABLE(of, btusb_match_table); 2868 2869 /* Use an oob wakeup pin? */ 2870 static int btusb_config_oob_wake(struct hci_dev *hdev) 2871 { 2872 struct btusb_data *data = hci_get_drvdata(hdev); 2873 struct device *dev = &data->udev->dev; 2874 int irq, ret; 2875 2876 clear_bit(BTUSB_OOB_WAKE_ENABLED, &data->flags); 2877 2878 if (!of_match_device(btusb_match_table, dev)) 2879 return 0; 2880 2881 /* Move on if no IRQ specified */ 2882 irq = of_irq_get_byname(dev->of_node, "wakeup"); 2883 if (irq <= 0) { 2884 bt_dev_dbg(hdev, "%s: no OOB Wakeup IRQ in DT", __func__); 2885 return 0; 2886 } 2887 2888 ret = devm_request_irq(&hdev->dev, irq, btusb_oob_wake_handler, 2889 0, "OOB Wake-on-BT", data); 2890 if (ret) { 2891 bt_dev_err(hdev, "%s: IRQ request failed", __func__); 2892 return ret; 2893 } 2894 2895 ret = device_init_wakeup(dev, true); 2896 if (ret) { 2897 bt_dev_err(hdev, "%s: failed to init_wakeup", __func__); 2898 return ret; 2899 } 2900 2901 data->oob_wake_irq = irq; 2902 disable_irq(irq); 2903 bt_dev_info(hdev, "OOB Wake-on-BT configured at IRQ %u", irq); 2904 return 0; 2905 } 2906 #endif 2907 2908 static void btusb_check_needs_reset_resume(struct usb_interface *intf) 2909 { 2910 if (dmi_check_system(btusb_needs_reset_resume_table)) 2911 interface_to_usbdev(intf)->quirks |= USB_QUIRK_RESET_RESUME; 2912 } 2913 2914 static int btusb_probe(struct usb_interface *intf, 2915 const struct usb_device_id *id) 2916 { 2917 struct usb_endpoint_descriptor *ep_desc; 2918 struct btusb_data *data; 2919 struct hci_dev *hdev; 2920 unsigned ifnum_base; 2921 int i, err; 2922 2923 BT_DBG("intf %p id %p", intf, id); 2924 2925 /* interface numbers are hardcoded in the spec */ 2926 if (intf->cur_altsetting->desc.bInterfaceNumber != 0) { 2927 if (!(id->driver_info & BTUSB_IFNUM_2)) 2928 return -ENODEV; 2929 if (intf->cur_altsetting->desc.bInterfaceNumber != 2) 2930 return -ENODEV; 2931 } 2932 2933 ifnum_base = intf->cur_altsetting->desc.bInterfaceNumber; 2934 2935 if (!id->driver_info) { 2936 const struct usb_device_id *match; 2937 2938 match = usb_match_id(intf, blacklist_table); 2939 if (match) 2940 id = match; 2941 } 2942 2943 if (id->driver_info == BTUSB_IGNORE) 2944 return -ENODEV; 2945 2946 if (id->driver_info & BTUSB_ATH3012) { 2947 struct usb_device *udev = interface_to_usbdev(intf); 2948 2949 /* Old firmware would otherwise let ath3k driver load 2950 * patch and sysconfig files 2951 */ 2952 if (le16_to_cpu(udev->descriptor.bcdDevice) <= 0x0001 && 2953 !btusb_qca_need_patch(udev)) 2954 return -ENODEV; 2955 } 2956 2957 data = devm_kzalloc(&intf->dev, sizeof(*data), GFP_KERNEL); 2958 if (!data) 2959 return -ENOMEM; 2960 2961 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) { 2962 ep_desc = &intf->cur_altsetting->endpoint[i].desc; 2963 2964 if (!data->intr_ep && usb_endpoint_is_int_in(ep_desc)) { 2965 data->intr_ep = ep_desc; 2966 continue; 2967 } 2968 2969 if (!data->bulk_tx_ep && usb_endpoint_is_bulk_out(ep_desc)) { 2970 data->bulk_tx_ep = ep_desc; 2971 continue; 2972 } 2973 2974 if (!data->bulk_rx_ep && usb_endpoint_is_bulk_in(ep_desc)) { 2975 data->bulk_rx_ep = ep_desc; 2976 continue; 2977 } 2978 } 2979 2980 if (!data->intr_ep || !data->bulk_tx_ep || !data->bulk_rx_ep) 2981 return -ENODEV; 2982 2983 if (id->driver_info & BTUSB_AMP) { 2984 data->cmdreq_type = USB_TYPE_CLASS | 0x01; 2985 data->cmdreq = 0x2b; 2986 } else { 2987 data->cmdreq_type = USB_TYPE_CLASS; 2988 data->cmdreq = 0x00; 2989 } 2990 2991 data->udev = interface_to_usbdev(intf); 2992 data->intf = intf; 2993 2994 INIT_WORK(&data->work, btusb_work); 2995 INIT_WORK(&data->waker, btusb_waker); 2996 init_usb_anchor(&data->deferred); 2997 init_usb_anchor(&data->tx_anchor); 2998 spin_lock_init(&data->txlock); 2999 3000 init_usb_anchor(&data->intr_anchor); 3001 init_usb_anchor(&data->bulk_anchor); 3002 init_usb_anchor(&data->isoc_anchor); 3003 init_usb_anchor(&data->diag_anchor); 3004 spin_lock_init(&data->rxlock); 3005 3006 if (id->driver_info & BTUSB_INTEL_NEW) { 3007 data->recv_event = btusb_recv_event_intel; 3008 data->recv_bulk = btusb_recv_bulk_intel; 3009 set_bit(BTUSB_BOOTLOADER, &data->flags); 3010 } else { 3011 data->recv_event = hci_recv_frame; 3012 data->recv_bulk = btusb_recv_bulk; 3013 } 3014 3015 hdev = hci_alloc_dev(); 3016 if (!hdev) 3017 return -ENOMEM; 3018 3019 hdev->bus = HCI_USB; 3020 hci_set_drvdata(hdev, data); 3021 3022 if (id->driver_info & BTUSB_AMP) 3023 hdev->dev_type = HCI_AMP; 3024 else 3025 hdev->dev_type = HCI_PRIMARY; 3026 3027 data->hdev = hdev; 3028 3029 SET_HCIDEV_DEV(hdev, &intf->dev); 3030 3031 hdev->open = btusb_open; 3032 hdev->close = btusb_close; 3033 hdev->flush = btusb_flush; 3034 hdev->send = btusb_send_frame; 3035 hdev->notify = btusb_notify; 3036 3037 #ifdef CONFIG_PM 3038 err = btusb_config_oob_wake(hdev); 3039 if (err) 3040 goto out_free_dev; 3041 3042 /* Marvell devices may need a specific chip configuration */ 3043 if (id->driver_info & BTUSB_MARVELL && data->oob_wake_irq) { 3044 err = marvell_config_oob_wake(hdev); 3045 if (err) 3046 goto out_free_dev; 3047 } 3048 #endif 3049 if (id->driver_info & BTUSB_CW6622) 3050 set_bit(HCI_QUIRK_BROKEN_STORED_LINK_KEY, &hdev->quirks); 3051 3052 if (id->driver_info & BTUSB_BCM2045) 3053 set_bit(HCI_QUIRK_BROKEN_STORED_LINK_KEY, &hdev->quirks); 3054 3055 if (id->driver_info & BTUSB_BCM92035) 3056 hdev->setup = btusb_setup_bcm92035; 3057 3058 #ifdef CONFIG_BT_HCIBTUSB_BCM 3059 if (id->driver_info & BTUSB_BCM_PATCHRAM) { 3060 hdev->manufacturer = 15; 3061 hdev->setup = btbcm_setup_patchram; 3062 hdev->set_diag = btusb_bcm_set_diag; 3063 hdev->set_bdaddr = btbcm_set_bdaddr; 3064 3065 /* Broadcom LM_DIAG Interface numbers are hardcoded */ 3066 data->diag = usb_ifnum_to_if(data->udev, ifnum_base + 2); 3067 } 3068 3069 if (id->driver_info & BTUSB_BCM_APPLE) { 3070 hdev->manufacturer = 15; 3071 hdev->setup = btbcm_setup_apple; 3072 hdev->set_diag = btusb_bcm_set_diag; 3073 3074 /* Broadcom LM_DIAG Interface numbers are hardcoded */ 3075 data->diag = usb_ifnum_to_if(data->udev, ifnum_base + 2); 3076 } 3077 #endif 3078 3079 if (id->driver_info & BTUSB_INTEL) { 3080 hdev->manufacturer = 2; 3081 hdev->setup = btusb_setup_intel; 3082 hdev->shutdown = btusb_shutdown_intel; 3083 hdev->set_diag = btintel_set_diag_mfg; 3084 hdev->set_bdaddr = btintel_set_bdaddr; 3085 set_bit(HCI_QUIRK_STRICT_DUPLICATE_FILTER, &hdev->quirks); 3086 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks); 3087 set_bit(HCI_QUIRK_NON_PERSISTENT_DIAG, &hdev->quirks); 3088 } 3089 3090 if (id->driver_info & BTUSB_INTEL_NEW) { 3091 hdev->manufacturer = 2; 3092 hdev->send = btusb_send_frame_intel; 3093 hdev->setup = btusb_setup_intel_new; 3094 hdev->hw_error = btintel_hw_error; 3095 hdev->set_diag = btintel_set_diag; 3096 hdev->set_bdaddr = btintel_set_bdaddr; 3097 set_bit(HCI_QUIRK_STRICT_DUPLICATE_FILTER, &hdev->quirks); 3098 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks); 3099 set_bit(HCI_QUIRK_NON_PERSISTENT_DIAG, &hdev->quirks); 3100 } 3101 3102 if (id->driver_info & BTUSB_MARVELL) 3103 hdev->set_bdaddr = btusb_set_bdaddr_marvell; 3104 3105 if (id->driver_info & BTUSB_SWAVE) { 3106 set_bit(HCI_QUIRK_FIXUP_INQUIRY_MODE, &hdev->quirks); 3107 set_bit(HCI_QUIRK_BROKEN_LOCAL_COMMANDS, &hdev->quirks); 3108 } 3109 3110 if (id->driver_info & BTUSB_INTEL_BOOT) { 3111 hdev->manufacturer = 2; 3112 set_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks); 3113 } 3114 3115 if (id->driver_info & BTUSB_ATH3012) { 3116 data->setup_on_usb = btusb_setup_qca; 3117 hdev->set_bdaddr = btusb_set_bdaddr_ath3012; 3118 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks); 3119 set_bit(HCI_QUIRK_STRICT_DUPLICATE_FILTER, &hdev->quirks); 3120 } 3121 3122 if (id->driver_info & BTUSB_QCA_ROME) { 3123 data->setup_on_usb = btusb_setup_qca; 3124 hdev->set_bdaddr = btusb_set_bdaddr_ath3012; 3125 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks); 3126 btusb_check_needs_reset_resume(intf); 3127 } 3128 3129 #ifdef CONFIG_BT_HCIBTUSB_RTL 3130 if (id->driver_info & BTUSB_REALTEK) { 3131 hdev->setup = btrtl_setup_realtek; 3132 3133 /* Realtek devices lose their updated firmware over suspend, 3134 * but the USB hub doesn't notice any status change. 3135 * Explicitly request a device reset on resume. 3136 */ 3137 interface_to_usbdev(intf)->quirks |= USB_QUIRK_RESET_RESUME; 3138 } 3139 #endif 3140 3141 if (id->driver_info & BTUSB_AMP) { 3142 /* AMP controllers do not support SCO packets */ 3143 data->isoc = NULL; 3144 } else { 3145 /* Interface orders are hardcoded in the specification */ 3146 data->isoc = usb_ifnum_to_if(data->udev, ifnum_base + 1); 3147 data->isoc_ifnum = ifnum_base + 1; 3148 } 3149 3150 if (!reset) 3151 set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks); 3152 3153 if (force_scofix || id->driver_info & BTUSB_WRONG_SCO_MTU) { 3154 if (!disable_scofix) 3155 set_bit(HCI_QUIRK_FIXUP_BUFFER_SIZE, &hdev->quirks); 3156 } 3157 3158 if (id->driver_info & BTUSB_BROKEN_ISOC) 3159 data->isoc = NULL; 3160 3161 if (id->driver_info & BTUSB_DIGIANSWER) { 3162 data->cmdreq_type = USB_TYPE_VENDOR; 3163 set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks); 3164 } 3165 3166 if (id->driver_info & BTUSB_CSR) { 3167 struct usb_device *udev = data->udev; 3168 u16 bcdDevice = le16_to_cpu(udev->descriptor.bcdDevice); 3169 3170 /* Old firmware would otherwise execute USB reset */ 3171 if (bcdDevice < 0x117) 3172 set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks); 3173 3174 /* Fake CSR devices with broken commands */ 3175 if (bcdDevice <= 0x100 || bcdDevice == 0x134) 3176 hdev->setup = btusb_setup_csr; 3177 3178 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks); 3179 } 3180 3181 if (id->driver_info & BTUSB_SNIFFER) { 3182 struct usb_device *udev = data->udev; 3183 3184 /* New sniffer firmware has crippled HCI interface */ 3185 if (le16_to_cpu(udev->descriptor.bcdDevice) > 0x997) 3186 set_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks); 3187 } 3188 3189 if (id->driver_info & BTUSB_INTEL_BOOT) { 3190 /* A bug in the bootloader causes that interrupt interface is 3191 * only enabled after receiving SetInterface(0, AltSetting=0). 3192 */ 3193 err = usb_set_interface(data->udev, 0, 0); 3194 if (err < 0) { 3195 BT_ERR("failed to set interface 0, alt 0 %d", err); 3196 goto out_free_dev; 3197 } 3198 } 3199 3200 if (data->isoc) { 3201 err = usb_driver_claim_interface(&btusb_driver, 3202 data->isoc, data); 3203 if (err < 0) 3204 goto out_free_dev; 3205 } 3206 3207 #ifdef CONFIG_BT_HCIBTUSB_BCM 3208 if (data->diag) { 3209 if (!usb_driver_claim_interface(&btusb_driver, 3210 data->diag, data)) 3211 __set_diag_interface(hdev); 3212 else 3213 data->diag = NULL; 3214 } 3215 #endif 3216 3217 if (enable_autosuspend) 3218 usb_enable_autosuspend(data->udev); 3219 3220 err = hci_register_dev(hdev); 3221 if (err < 0) 3222 goto out_free_dev; 3223 3224 usb_set_intfdata(intf, data); 3225 3226 return 0; 3227 3228 out_free_dev: 3229 hci_free_dev(hdev); 3230 return err; 3231 } 3232 3233 static void btusb_disconnect(struct usb_interface *intf) 3234 { 3235 struct btusb_data *data = usb_get_intfdata(intf); 3236 struct hci_dev *hdev; 3237 3238 BT_DBG("intf %p", intf); 3239 3240 if (!data) 3241 return; 3242 3243 hdev = data->hdev; 3244 usb_set_intfdata(data->intf, NULL); 3245 3246 if (data->isoc) 3247 usb_set_intfdata(data->isoc, NULL); 3248 3249 if (data->diag) 3250 usb_set_intfdata(data->diag, NULL); 3251 3252 hci_unregister_dev(hdev); 3253 3254 if (intf == data->intf) { 3255 if (data->isoc) 3256 usb_driver_release_interface(&btusb_driver, data->isoc); 3257 if (data->diag) 3258 usb_driver_release_interface(&btusb_driver, data->diag); 3259 } else if (intf == data->isoc) { 3260 if (data->diag) 3261 usb_driver_release_interface(&btusb_driver, data->diag); 3262 usb_driver_release_interface(&btusb_driver, data->intf); 3263 } else if (intf == data->diag) { 3264 usb_driver_release_interface(&btusb_driver, data->intf); 3265 if (data->isoc) 3266 usb_driver_release_interface(&btusb_driver, data->isoc); 3267 } 3268 3269 if (data->oob_wake_irq) 3270 device_init_wakeup(&data->udev->dev, false); 3271 3272 hci_free_dev(hdev); 3273 } 3274 3275 #ifdef CONFIG_PM 3276 static int btusb_suspend(struct usb_interface *intf, pm_message_t message) 3277 { 3278 struct btusb_data *data = usb_get_intfdata(intf); 3279 3280 BT_DBG("intf %p", intf); 3281 3282 if (data->suspend_count++) 3283 return 0; 3284 3285 spin_lock_irq(&data->txlock); 3286 if (!(PMSG_IS_AUTO(message) && data->tx_in_flight)) { 3287 set_bit(BTUSB_SUSPENDING, &data->flags); 3288 spin_unlock_irq(&data->txlock); 3289 } else { 3290 spin_unlock_irq(&data->txlock); 3291 data->suspend_count--; 3292 return -EBUSY; 3293 } 3294 3295 cancel_work_sync(&data->work); 3296 3297 btusb_stop_traffic(data); 3298 usb_kill_anchored_urbs(&data->tx_anchor); 3299 3300 if (data->oob_wake_irq && device_may_wakeup(&data->udev->dev)) { 3301 set_bit(BTUSB_OOB_WAKE_ENABLED, &data->flags); 3302 enable_irq_wake(data->oob_wake_irq); 3303 enable_irq(data->oob_wake_irq); 3304 } 3305 3306 return 0; 3307 } 3308 3309 static void play_deferred(struct btusb_data *data) 3310 { 3311 struct urb *urb; 3312 int err; 3313 3314 while ((urb = usb_get_from_anchor(&data->deferred))) { 3315 usb_anchor_urb(urb, &data->tx_anchor); 3316 3317 err = usb_submit_urb(urb, GFP_ATOMIC); 3318 if (err < 0) { 3319 if (err != -EPERM && err != -ENODEV) 3320 BT_ERR("%s urb %p submission failed (%d)", 3321 data->hdev->name, urb, -err); 3322 kfree(urb->setup_packet); 3323 usb_unanchor_urb(urb); 3324 usb_free_urb(urb); 3325 break; 3326 } 3327 3328 data->tx_in_flight++; 3329 usb_free_urb(urb); 3330 } 3331 3332 /* Cleanup the rest deferred urbs. */ 3333 while ((urb = usb_get_from_anchor(&data->deferred))) { 3334 kfree(urb->setup_packet); 3335 usb_free_urb(urb); 3336 } 3337 } 3338 3339 static int btusb_resume(struct usb_interface *intf) 3340 { 3341 struct btusb_data *data = usb_get_intfdata(intf); 3342 struct hci_dev *hdev = data->hdev; 3343 int err = 0; 3344 3345 BT_DBG("intf %p", intf); 3346 3347 if (--data->suspend_count) 3348 return 0; 3349 3350 /* Disable only if not already disabled (keep it balanced) */ 3351 if (test_and_clear_bit(BTUSB_OOB_WAKE_ENABLED, &data->flags)) { 3352 disable_irq(data->oob_wake_irq); 3353 disable_irq_wake(data->oob_wake_irq); 3354 } 3355 3356 if (!test_bit(HCI_RUNNING, &hdev->flags)) 3357 goto done; 3358 3359 if (test_bit(BTUSB_INTR_RUNNING, &data->flags)) { 3360 err = btusb_submit_intr_urb(hdev, GFP_NOIO); 3361 if (err < 0) { 3362 clear_bit(BTUSB_INTR_RUNNING, &data->flags); 3363 goto failed; 3364 } 3365 } 3366 3367 if (test_bit(BTUSB_BULK_RUNNING, &data->flags)) { 3368 err = btusb_submit_bulk_urb(hdev, GFP_NOIO); 3369 if (err < 0) { 3370 clear_bit(BTUSB_BULK_RUNNING, &data->flags); 3371 goto failed; 3372 } 3373 3374 btusb_submit_bulk_urb(hdev, GFP_NOIO); 3375 } 3376 3377 if (test_bit(BTUSB_ISOC_RUNNING, &data->flags)) { 3378 if (btusb_submit_isoc_urb(hdev, GFP_NOIO) < 0) 3379 clear_bit(BTUSB_ISOC_RUNNING, &data->flags); 3380 else 3381 btusb_submit_isoc_urb(hdev, GFP_NOIO); 3382 } 3383 3384 spin_lock_irq(&data->txlock); 3385 play_deferred(data); 3386 clear_bit(BTUSB_SUSPENDING, &data->flags); 3387 spin_unlock_irq(&data->txlock); 3388 schedule_work(&data->work); 3389 3390 return 0; 3391 3392 failed: 3393 usb_scuttle_anchored_urbs(&data->deferred); 3394 done: 3395 spin_lock_irq(&data->txlock); 3396 clear_bit(BTUSB_SUSPENDING, &data->flags); 3397 spin_unlock_irq(&data->txlock); 3398 3399 return err; 3400 } 3401 #endif 3402 3403 static struct usb_driver btusb_driver = { 3404 .name = "btusb", 3405 .probe = btusb_probe, 3406 .disconnect = btusb_disconnect, 3407 #ifdef CONFIG_PM 3408 .suspend = btusb_suspend, 3409 .resume = btusb_resume, 3410 #endif 3411 .id_table = btusb_table, 3412 .supports_autosuspend = 1, 3413 .disable_hub_initiated_lpm = 1, 3414 }; 3415 3416 module_usb_driver(btusb_driver); 3417 3418 module_param(disable_scofix, bool, 0644); 3419 MODULE_PARM_DESC(disable_scofix, "Disable fixup of wrong SCO buffer size"); 3420 3421 module_param(force_scofix, bool, 0644); 3422 MODULE_PARM_DESC(force_scofix, "Force fixup of wrong SCO buffers size"); 3423 3424 module_param(enable_autosuspend, bool, 0644); 3425 MODULE_PARM_DESC(enable_autosuspend, "Enable USB autosuspend by default"); 3426 3427 module_param(reset, bool, 0644); 3428 MODULE_PARM_DESC(reset, "Send HCI reset command on initialization"); 3429 3430 MODULE_AUTHOR("Marcel Holtmann <marcel@holtmann.org>"); 3431 MODULE_DESCRIPTION("Generic Bluetooth USB driver ver " VERSION); 3432 MODULE_VERSION(VERSION); 3433 MODULE_LICENSE("GPL"); 3434