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 <linux/gpio/consumer.h> 33 #include <asm/unaligned.h> 34 35 #include <net/bluetooth/bluetooth.h> 36 #include <net/bluetooth/hci_core.h> 37 38 #include "btintel.h" 39 #include "btbcm.h" 40 #include "btrtl.h" 41 42 #define VERSION "0.8" 43 44 static bool disable_scofix; 45 static bool force_scofix; 46 static bool enable_autosuspend = IS_ENABLED(CONFIG_BT_HCIBTUSB_AUTOSUSPEND); 47 48 static bool reset = true; 49 50 static struct usb_driver btusb_driver; 51 52 #define BTUSB_IGNORE 0x01 53 #define BTUSB_DIGIANSWER 0x02 54 #define BTUSB_CSR 0x04 55 #define BTUSB_SNIFFER 0x08 56 #define BTUSB_BCM92035 0x10 57 #define BTUSB_BROKEN_ISOC 0x20 58 #define BTUSB_WRONG_SCO_MTU 0x40 59 #define BTUSB_ATH3012 0x80 60 #define BTUSB_INTEL 0x100 61 #define BTUSB_INTEL_BOOT 0x200 62 #define BTUSB_BCM_PATCHRAM 0x400 63 #define BTUSB_MARVELL 0x800 64 #define BTUSB_SWAVE 0x1000 65 #define BTUSB_INTEL_NEW 0x2000 66 #define BTUSB_AMP 0x4000 67 #define BTUSB_QCA_ROME 0x8000 68 #define BTUSB_BCM_APPLE 0x10000 69 #define BTUSB_REALTEK 0x20000 70 #define BTUSB_BCM2045 0x40000 71 #define BTUSB_IFNUM_2 0x80000 72 #define BTUSB_CW6622 0x100000 73 74 static const struct usb_device_id btusb_table[] = { 75 /* Generic Bluetooth USB device */ 76 { USB_DEVICE_INFO(0xe0, 0x01, 0x01) }, 77 78 /* Generic Bluetooth AMP device */ 79 { USB_DEVICE_INFO(0xe0, 0x01, 0x04), .driver_info = BTUSB_AMP }, 80 81 /* Generic Bluetooth USB interface */ 82 { USB_INTERFACE_INFO(0xe0, 0x01, 0x01) }, 83 84 /* Apple-specific (Broadcom) devices */ 85 { USB_VENDOR_AND_INTERFACE_INFO(0x05ac, 0xff, 0x01, 0x01), 86 .driver_info = BTUSB_BCM_APPLE | BTUSB_IFNUM_2 }, 87 88 /* MediaTek MT76x0E */ 89 { USB_DEVICE(0x0e8d, 0x763f) }, 90 91 /* Broadcom SoftSailing reporting vendor specific */ 92 { USB_DEVICE(0x0a5c, 0x21e1) }, 93 94 /* Apple MacBookPro 7,1 */ 95 { USB_DEVICE(0x05ac, 0x8213) }, 96 97 /* Apple iMac11,1 */ 98 { USB_DEVICE(0x05ac, 0x8215) }, 99 100 /* Apple MacBookPro6,2 */ 101 { USB_DEVICE(0x05ac, 0x8218) }, 102 103 /* Apple MacBookAir3,1, MacBookAir3,2 */ 104 { USB_DEVICE(0x05ac, 0x821b) }, 105 106 /* Apple MacBookAir4,1 */ 107 { USB_DEVICE(0x05ac, 0x821f) }, 108 109 /* Apple MacBookPro8,2 */ 110 { USB_DEVICE(0x05ac, 0x821a) }, 111 112 /* Apple MacMini5,1 */ 113 { USB_DEVICE(0x05ac, 0x8281) }, 114 115 /* AVM BlueFRITZ! USB v2.0 */ 116 { USB_DEVICE(0x057c, 0x3800), .driver_info = BTUSB_SWAVE }, 117 118 /* Bluetooth Ultraport Module from IBM */ 119 { USB_DEVICE(0x04bf, 0x030a) }, 120 121 /* ALPS Modules with non-standard id */ 122 { USB_DEVICE(0x044e, 0x3001) }, 123 { USB_DEVICE(0x044e, 0x3002) }, 124 125 /* Ericsson with non-standard id */ 126 { USB_DEVICE(0x0bdb, 0x1002) }, 127 128 /* Canyon CN-BTU1 with HID interfaces */ 129 { USB_DEVICE(0x0c10, 0x0000) }, 130 131 /* Broadcom BCM20702A0 */ 132 { USB_DEVICE(0x413c, 0x8197) }, 133 134 /* Broadcom BCM20702B0 (Dynex/Insignia) */ 135 { USB_DEVICE(0x19ff, 0x0239), .driver_info = BTUSB_BCM_PATCHRAM }, 136 137 /* Broadcom BCM43142A0 (Foxconn/Lenovo) */ 138 { USB_VENDOR_AND_INTERFACE_INFO(0x105b, 0xff, 0x01, 0x01), 139 .driver_info = BTUSB_BCM_PATCHRAM }, 140 141 /* Broadcom BCM920703 (HTC Vive) */ 142 { USB_VENDOR_AND_INTERFACE_INFO(0x0bb4, 0xff, 0x01, 0x01), 143 .driver_info = BTUSB_BCM_PATCHRAM }, 144 145 /* Foxconn - Hon Hai */ 146 { USB_VENDOR_AND_INTERFACE_INFO(0x0489, 0xff, 0x01, 0x01), 147 .driver_info = BTUSB_BCM_PATCHRAM }, 148 149 /* Lite-On Technology - Broadcom based */ 150 { USB_VENDOR_AND_INTERFACE_INFO(0x04ca, 0xff, 0x01, 0x01), 151 .driver_info = BTUSB_BCM_PATCHRAM }, 152 153 /* Broadcom devices with vendor specific id */ 154 { USB_VENDOR_AND_INTERFACE_INFO(0x0a5c, 0xff, 0x01, 0x01), 155 .driver_info = BTUSB_BCM_PATCHRAM }, 156 157 /* ASUSTek Computer - Broadcom based */ 158 { USB_VENDOR_AND_INTERFACE_INFO(0x0b05, 0xff, 0x01, 0x01), 159 .driver_info = BTUSB_BCM_PATCHRAM }, 160 161 /* Belkin F8065bf - Broadcom based */ 162 { USB_VENDOR_AND_INTERFACE_INFO(0x050d, 0xff, 0x01, 0x01), 163 .driver_info = BTUSB_BCM_PATCHRAM }, 164 165 /* IMC Networks - Broadcom based */ 166 { USB_VENDOR_AND_INTERFACE_INFO(0x13d3, 0xff, 0x01, 0x01), 167 .driver_info = BTUSB_BCM_PATCHRAM }, 168 169 /* Dell Computer - Broadcom based */ 170 { USB_VENDOR_AND_INTERFACE_INFO(0x413c, 0xff, 0x01, 0x01), 171 .driver_info = BTUSB_BCM_PATCHRAM }, 172 173 /* Toshiba Corp - Broadcom based */ 174 { USB_VENDOR_AND_INTERFACE_INFO(0x0930, 0xff, 0x01, 0x01), 175 .driver_info = BTUSB_BCM_PATCHRAM }, 176 177 /* Intel Bluetooth USB Bootloader (RAM module) */ 178 { USB_DEVICE(0x8087, 0x0a5a), 179 .driver_info = BTUSB_INTEL_BOOT | BTUSB_BROKEN_ISOC }, 180 181 { } /* Terminating entry */ 182 }; 183 184 MODULE_DEVICE_TABLE(usb, btusb_table); 185 186 static const struct usb_device_id blacklist_table[] = { 187 /* CSR BlueCore devices */ 188 { USB_DEVICE(0x0a12, 0x0001), .driver_info = BTUSB_CSR }, 189 190 /* Broadcom BCM2033 without firmware */ 191 { USB_DEVICE(0x0a5c, 0x2033), .driver_info = BTUSB_IGNORE }, 192 193 /* Broadcom BCM2045 devices */ 194 { USB_DEVICE(0x0a5c, 0x2045), .driver_info = BTUSB_BCM2045 }, 195 196 /* Atheros 3011 with sflash firmware */ 197 { USB_DEVICE(0x0489, 0xe027), .driver_info = BTUSB_IGNORE }, 198 { USB_DEVICE(0x0489, 0xe03d), .driver_info = BTUSB_IGNORE }, 199 { USB_DEVICE(0x04f2, 0xaff1), .driver_info = BTUSB_IGNORE }, 200 { USB_DEVICE(0x0930, 0x0215), .driver_info = BTUSB_IGNORE }, 201 { USB_DEVICE(0x0cf3, 0x3002), .driver_info = BTUSB_IGNORE }, 202 { USB_DEVICE(0x0cf3, 0xe019), .driver_info = BTUSB_IGNORE }, 203 { USB_DEVICE(0x13d3, 0x3304), .driver_info = BTUSB_IGNORE }, 204 205 /* Atheros AR9285 Malbec with sflash firmware */ 206 { USB_DEVICE(0x03f0, 0x311d), .driver_info = BTUSB_IGNORE }, 207 208 /* Atheros 3012 with sflash firmware */ 209 { USB_DEVICE(0x0489, 0xe04d), .driver_info = BTUSB_ATH3012 }, 210 { USB_DEVICE(0x0489, 0xe04e), .driver_info = BTUSB_ATH3012 }, 211 { USB_DEVICE(0x0489, 0xe056), .driver_info = BTUSB_ATH3012 }, 212 { USB_DEVICE(0x0489, 0xe057), .driver_info = BTUSB_ATH3012 }, 213 { USB_DEVICE(0x0489, 0xe05f), .driver_info = BTUSB_ATH3012 }, 214 { USB_DEVICE(0x0489, 0xe076), .driver_info = BTUSB_ATH3012 }, 215 { USB_DEVICE(0x0489, 0xe078), .driver_info = BTUSB_ATH3012 }, 216 { USB_DEVICE(0x0489, 0xe095), .driver_info = BTUSB_ATH3012 }, 217 { USB_DEVICE(0x04c5, 0x1330), .driver_info = BTUSB_ATH3012 }, 218 { USB_DEVICE(0x04ca, 0x3004), .driver_info = BTUSB_ATH3012 }, 219 { USB_DEVICE(0x04ca, 0x3005), .driver_info = BTUSB_ATH3012 }, 220 { USB_DEVICE(0x04ca, 0x3006), .driver_info = BTUSB_ATH3012 }, 221 { USB_DEVICE(0x04ca, 0x3007), .driver_info = BTUSB_ATH3012 }, 222 { USB_DEVICE(0x04ca, 0x3008), .driver_info = BTUSB_ATH3012 }, 223 { USB_DEVICE(0x04ca, 0x300b), .driver_info = BTUSB_ATH3012 }, 224 { USB_DEVICE(0x04ca, 0x300d), .driver_info = BTUSB_ATH3012 }, 225 { USB_DEVICE(0x04ca, 0x300f), .driver_info = BTUSB_ATH3012 }, 226 { USB_DEVICE(0x04ca, 0x3010), .driver_info = BTUSB_ATH3012 }, 227 { USB_DEVICE(0x04ca, 0x3014), .driver_info = BTUSB_ATH3012 }, 228 { USB_DEVICE(0x04ca, 0x3018), .driver_info = BTUSB_ATH3012 }, 229 { USB_DEVICE(0x0930, 0x0219), .driver_info = BTUSB_ATH3012 }, 230 { USB_DEVICE(0x0930, 0x021c), .driver_info = BTUSB_ATH3012 }, 231 { USB_DEVICE(0x0930, 0x0220), .driver_info = BTUSB_ATH3012 }, 232 { USB_DEVICE(0x0930, 0x0227), .driver_info = BTUSB_ATH3012 }, 233 { USB_DEVICE(0x0b05, 0x17d0), .driver_info = BTUSB_ATH3012 }, 234 { USB_DEVICE(0x0cf3, 0x0036), .driver_info = BTUSB_ATH3012 }, 235 { USB_DEVICE(0x0cf3, 0x3004), .driver_info = BTUSB_ATH3012 }, 236 { USB_DEVICE(0x0cf3, 0x3008), .driver_info = BTUSB_ATH3012 }, 237 { USB_DEVICE(0x0cf3, 0x311d), .driver_info = BTUSB_ATH3012 }, 238 { USB_DEVICE(0x0cf3, 0x311e), .driver_info = BTUSB_ATH3012 }, 239 { USB_DEVICE(0x0cf3, 0x311f), .driver_info = BTUSB_ATH3012 }, 240 { USB_DEVICE(0x0cf3, 0x3121), .driver_info = BTUSB_ATH3012 }, 241 { USB_DEVICE(0x0cf3, 0x817a), .driver_info = BTUSB_ATH3012 }, 242 { USB_DEVICE(0x0cf3, 0x817b), .driver_info = BTUSB_ATH3012 }, 243 { USB_DEVICE(0x0cf3, 0xe003), .driver_info = BTUSB_ATH3012 }, 244 { USB_DEVICE(0x0cf3, 0xe004), .driver_info = BTUSB_ATH3012 }, 245 { USB_DEVICE(0x0cf3, 0xe005), .driver_info = BTUSB_ATH3012 }, 246 { USB_DEVICE(0x0cf3, 0xe006), .driver_info = BTUSB_ATH3012 }, 247 { USB_DEVICE(0x13d3, 0x3362), .driver_info = BTUSB_ATH3012 }, 248 { USB_DEVICE(0x13d3, 0x3375), .driver_info = BTUSB_ATH3012 }, 249 { USB_DEVICE(0x13d3, 0x3393), .driver_info = BTUSB_ATH3012 }, 250 { USB_DEVICE(0x13d3, 0x3395), .driver_info = BTUSB_ATH3012 }, 251 { USB_DEVICE(0x13d3, 0x3402), .driver_info = BTUSB_ATH3012 }, 252 { USB_DEVICE(0x13d3, 0x3408), .driver_info = BTUSB_ATH3012 }, 253 { USB_DEVICE(0x13d3, 0x3423), .driver_info = BTUSB_ATH3012 }, 254 { USB_DEVICE(0x13d3, 0x3432), .driver_info = BTUSB_ATH3012 }, 255 { USB_DEVICE(0x13d3, 0x3472), .driver_info = BTUSB_ATH3012 }, 256 { USB_DEVICE(0x13d3, 0x3474), .driver_info = BTUSB_ATH3012 }, 257 { USB_DEVICE(0x13d3, 0x3487), .driver_info = BTUSB_ATH3012 }, 258 { USB_DEVICE(0x13d3, 0x3490), .driver_info = BTUSB_ATH3012 }, 259 260 /* Atheros AR5BBU12 with sflash firmware */ 261 { USB_DEVICE(0x0489, 0xe02c), .driver_info = BTUSB_IGNORE }, 262 263 /* Atheros AR5BBU12 with sflash firmware */ 264 { USB_DEVICE(0x0489, 0xe036), .driver_info = BTUSB_ATH3012 }, 265 { USB_DEVICE(0x0489, 0xe03c), .driver_info = BTUSB_ATH3012 }, 266 267 /* QCA ROME chipset */ 268 { USB_DEVICE(0x0cf3, 0x535b), .driver_info = BTUSB_QCA_ROME }, 269 { USB_DEVICE(0x0cf3, 0xe007), .driver_info = BTUSB_QCA_ROME }, 270 { USB_DEVICE(0x0cf3, 0xe009), .driver_info = BTUSB_QCA_ROME }, 271 { USB_DEVICE(0x0cf3, 0xe010), .driver_info = BTUSB_QCA_ROME }, 272 { USB_DEVICE(0x0cf3, 0xe300), .driver_info = BTUSB_QCA_ROME }, 273 { USB_DEVICE(0x0cf3, 0xe301), .driver_info = BTUSB_QCA_ROME }, 274 { USB_DEVICE(0x0cf3, 0xe360), .driver_info = BTUSB_QCA_ROME }, 275 { USB_DEVICE(0x0489, 0xe092), .driver_info = BTUSB_QCA_ROME }, 276 { USB_DEVICE(0x0489, 0xe09f), .driver_info = BTUSB_QCA_ROME }, 277 { USB_DEVICE(0x0489, 0xe0a2), .driver_info = BTUSB_QCA_ROME }, 278 { USB_DEVICE(0x04ca, 0x3011), .driver_info = BTUSB_QCA_ROME }, 279 { USB_DEVICE(0x04ca, 0x3015), .driver_info = BTUSB_QCA_ROME }, 280 { USB_DEVICE(0x04ca, 0x3016), .driver_info = BTUSB_QCA_ROME }, 281 { USB_DEVICE(0x04ca, 0x301a), .driver_info = BTUSB_QCA_ROME }, 282 { USB_DEVICE(0x13d3, 0x3496), .driver_info = BTUSB_QCA_ROME }, 283 284 /* Broadcom BCM2035 */ 285 { USB_DEVICE(0x0a5c, 0x2009), .driver_info = BTUSB_BCM92035 }, 286 { USB_DEVICE(0x0a5c, 0x200a), .driver_info = BTUSB_WRONG_SCO_MTU }, 287 { USB_DEVICE(0x0a5c, 0x2035), .driver_info = BTUSB_WRONG_SCO_MTU }, 288 289 /* Broadcom BCM2045 */ 290 { USB_DEVICE(0x0a5c, 0x2039), .driver_info = BTUSB_WRONG_SCO_MTU }, 291 { USB_DEVICE(0x0a5c, 0x2101), .driver_info = BTUSB_WRONG_SCO_MTU }, 292 293 /* IBM/Lenovo ThinkPad with Broadcom chip */ 294 { USB_DEVICE(0x0a5c, 0x201e), .driver_info = BTUSB_WRONG_SCO_MTU }, 295 { USB_DEVICE(0x0a5c, 0x2110), .driver_info = BTUSB_WRONG_SCO_MTU }, 296 297 /* HP laptop with Broadcom chip */ 298 { USB_DEVICE(0x03f0, 0x171d), .driver_info = BTUSB_WRONG_SCO_MTU }, 299 300 /* Dell laptop with Broadcom chip */ 301 { USB_DEVICE(0x413c, 0x8126), .driver_info = BTUSB_WRONG_SCO_MTU }, 302 303 /* Dell Wireless 370 and 410 devices */ 304 { USB_DEVICE(0x413c, 0x8152), .driver_info = BTUSB_WRONG_SCO_MTU }, 305 { USB_DEVICE(0x413c, 0x8156), .driver_info = BTUSB_WRONG_SCO_MTU }, 306 307 /* Belkin F8T012 and F8T013 devices */ 308 { USB_DEVICE(0x050d, 0x0012), .driver_info = BTUSB_WRONG_SCO_MTU }, 309 { USB_DEVICE(0x050d, 0x0013), .driver_info = BTUSB_WRONG_SCO_MTU }, 310 311 /* Asus WL-BTD202 device */ 312 { USB_DEVICE(0x0b05, 0x1715), .driver_info = BTUSB_WRONG_SCO_MTU }, 313 314 /* Kensington Bluetooth USB adapter */ 315 { USB_DEVICE(0x047d, 0x105e), .driver_info = BTUSB_WRONG_SCO_MTU }, 316 317 /* RTX Telecom based adapters with buggy SCO support */ 318 { USB_DEVICE(0x0400, 0x0807), .driver_info = BTUSB_BROKEN_ISOC }, 319 { USB_DEVICE(0x0400, 0x080a), .driver_info = BTUSB_BROKEN_ISOC }, 320 321 /* CONWISE Technology based adapters with buggy SCO support */ 322 { USB_DEVICE(0x0e5e, 0x6622), 323 .driver_info = BTUSB_BROKEN_ISOC | BTUSB_CW6622}, 324 325 /* Roper Class 1 Bluetooth Dongle (Silicon Wave based) */ 326 { USB_DEVICE(0x1310, 0x0001), .driver_info = BTUSB_SWAVE }, 327 328 /* Digianswer devices */ 329 { USB_DEVICE(0x08fd, 0x0001), .driver_info = BTUSB_DIGIANSWER }, 330 { USB_DEVICE(0x08fd, 0x0002), .driver_info = BTUSB_IGNORE }, 331 332 /* CSR BlueCore Bluetooth Sniffer */ 333 { USB_DEVICE(0x0a12, 0x0002), 334 .driver_info = BTUSB_SNIFFER | BTUSB_BROKEN_ISOC }, 335 336 /* Frontline ComProbe Bluetooth Sniffer */ 337 { USB_DEVICE(0x16d3, 0x0002), 338 .driver_info = BTUSB_SNIFFER | BTUSB_BROKEN_ISOC }, 339 340 /* Marvell Bluetooth devices */ 341 { USB_DEVICE(0x1286, 0x2044), .driver_info = BTUSB_MARVELL }, 342 { USB_DEVICE(0x1286, 0x2046), .driver_info = BTUSB_MARVELL }, 343 { USB_DEVICE(0x1286, 0x204e), .driver_info = BTUSB_MARVELL }, 344 345 /* Intel Bluetooth devices */ 346 { USB_DEVICE(0x8087, 0x0025), .driver_info = BTUSB_INTEL_NEW }, 347 { USB_DEVICE(0x8087, 0x0026), .driver_info = BTUSB_INTEL_NEW }, 348 { USB_DEVICE(0x8087, 0x0029), .driver_info = BTUSB_INTEL_NEW }, 349 { USB_DEVICE(0x8087, 0x07da), .driver_info = BTUSB_CSR }, 350 { USB_DEVICE(0x8087, 0x07dc), .driver_info = BTUSB_INTEL }, 351 { USB_DEVICE(0x8087, 0x0a2a), .driver_info = BTUSB_INTEL }, 352 { USB_DEVICE(0x8087, 0x0a2b), .driver_info = BTUSB_INTEL_NEW }, 353 { USB_DEVICE(0x8087, 0x0aa7), .driver_info = BTUSB_INTEL }, 354 { USB_DEVICE(0x8087, 0x0aaa), .driver_info = BTUSB_INTEL_NEW }, 355 356 /* Other Intel Bluetooth devices */ 357 { USB_VENDOR_AND_INTERFACE_INFO(0x8087, 0xe0, 0x01, 0x01), 358 .driver_info = BTUSB_IGNORE }, 359 360 /* Realtek Bluetooth devices */ 361 { USB_VENDOR_AND_INTERFACE_INFO(0x0bda, 0xe0, 0x01, 0x01), 362 .driver_info = BTUSB_REALTEK }, 363 364 /* Additional Realtek 8723AE Bluetooth devices */ 365 { USB_DEVICE(0x0930, 0x021d), .driver_info = BTUSB_REALTEK }, 366 { USB_DEVICE(0x13d3, 0x3394), .driver_info = BTUSB_REALTEK }, 367 368 /* Additional Realtek 8723BE Bluetooth devices */ 369 { USB_DEVICE(0x0489, 0xe085), .driver_info = BTUSB_REALTEK }, 370 { USB_DEVICE(0x0489, 0xe08b), .driver_info = BTUSB_REALTEK }, 371 { USB_DEVICE(0x13d3, 0x3410), .driver_info = BTUSB_REALTEK }, 372 { USB_DEVICE(0x13d3, 0x3416), .driver_info = BTUSB_REALTEK }, 373 { USB_DEVICE(0x13d3, 0x3459), .driver_info = BTUSB_REALTEK }, 374 { USB_DEVICE(0x13d3, 0x3494), .driver_info = BTUSB_REALTEK }, 375 376 /* Additional Realtek 8723BU Bluetooth devices */ 377 { USB_DEVICE(0x7392, 0xa611), .driver_info = BTUSB_REALTEK }, 378 379 /* Additional Realtek 8723DE Bluetooth devices */ 380 { USB_DEVICE(0x0bda, 0xb009), .driver_info = BTUSB_REALTEK }, 381 { USB_DEVICE(0x2ff8, 0xb011), .driver_info = BTUSB_REALTEK }, 382 383 /* Additional Realtek 8821AE Bluetooth devices */ 384 { USB_DEVICE(0x0b05, 0x17dc), .driver_info = BTUSB_REALTEK }, 385 { USB_DEVICE(0x13d3, 0x3414), .driver_info = BTUSB_REALTEK }, 386 { USB_DEVICE(0x13d3, 0x3458), .driver_info = BTUSB_REALTEK }, 387 { USB_DEVICE(0x13d3, 0x3461), .driver_info = BTUSB_REALTEK }, 388 { USB_DEVICE(0x13d3, 0x3462), .driver_info = BTUSB_REALTEK }, 389 390 /* Additional Realtek 8822BE Bluetooth devices */ 391 { USB_DEVICE(0x13d3, 0x3526), .driver_info = BTUSB_REALTEK }, 392 { USB_DEVICE(0x0b05, 0x185c), .driver_info = BTUSB_REALTEK }, 393 394 /* Silicon Wave based devices */ 395 { USB_DEVICE(0x0c10, 0x0000), .driver_info = BTUSB_SWAVE }, 396 397 { } /* Terminating entry */ 398 }; 399 400 /* The Bluetooth USB module build into some devices needs to be reset on resume, 401 * this is a problem with the platform (likely shutting off all power) not with 402 * the module itself. So we use a DMI list to match known broken platforms. 403 */ 404 static const struct dmi_system_id btusb_needs_reset_resume_table[] = { 405 { 406 /* Dell OptiPlex 3060 (QCA ROME device 0cf3:e007) */ 407 .matches = { 408 DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."), 409 DMI_MATCH(DMI_PRODUCT_NAME, "OptiPlex 3060"), 410 }, 411 }, 412 { 413 /* Dell XPS 9360 (QCA ROME device 0cf3:e300) */ 414 .matches = { 415 DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."), 416 DMI_MATCH(DMI_PRODUCT_NAME, "XPS 13 9360"), 417 }, 418 }, 419 { 420 /* Dell Inspiron 5565 (QCA ROME device 0cf3:e009) */ 421 .matches = { 422 DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."), 423 DMI_MATCH(DMI_PRODUCT_NAME, "Inspiron 5565"), 424 }, 425 }, 426 {} 427 }; 428 429 #define BTUSB_MAX_ISOC_FRAMES 10 430 431 #define BTUSB_INTR_RUNNING 0 432 #define BTUSB_BULK_RUNNING 1 433 #define BTUSB_ISOC_RUNNING 2 434 #define BTUSB_SUSPENDING 3 435 #define BTUSB_DID_ISO_RESUME 4 436 #define BTUSB_BOOTLOADER 5 437 #define BTUSB_DOWNLOADING 6 438 #define BTUSB_FIRMWARE_LOADED 7 439 #define BTUSB_FIRMWARE_FAILED 8 440 #define BTUSB_BOOTING 9 441 #define BTUSB_DIAG_RUNNING 10 442 #define BTUSB_OOB_WAKE_ENABLED 11 443 #define BTUSB_HW_RESET_ACTIVE 12 444 445 struct btusb_data { 446 struct hci_dev *hdev; 447 struct usb_device *udev; 448 struct usb_interface *intf; 449 struct usb_interface *isoc; 450 struct usb_interface *diag; 451 unsigned isoc_ifnum; 452 453 unsigned long flags; 454 455 struct work_struct work; 456 struct work_struct waker; 457 458 struct usb_anchor deferred; 459 struct usb_anchor tx_anchor; 460 int tx_in_flight; 461 spinlock_t txlock; 462 463 struct usb_anchor intr_anchor; 464 struct usb_anchor bulk_anchor; 465 struct usb_anchor isoc_anchor; 466 struct usb_anchor diag_anchor; 467 spinlock_t rxlock; 468 469 struct sk_buff *evt_skb; 470 struct sk_buff *acl_skb; 471 struct sk_buff *sco_skb; 472 473 struct usb_endpoint_descriptor *intr_ep; 474 struct usb_endpoint_descriptor *bulk_tx_ep; 475 struct usb_endpoint_descriptor *bulk_rx_ep; 476 struct usb_endpoint_descriptor *isoc_tx_ep; 477 struct usb_endpoint_descriptor *isoc_rx_ep; 478 struct usb_endpoint_descriptor *diag_tx_ep; 479 struct usb_endpoint_descriptor *diag_rx_ep; 480 481 struct gpio_desc *reset_gpio; 482 483 __u8 cmdreq_type; 484 __u8 cmdreq; 485 486 unsigned int sco_num; 487 int isoc_altsetting; 488 int suspend_count; 489 490 int (*recv_event)(struct hci_dev *hdev, struct sk_buff *skb); 491 int (*recv_bulk)(struct btusb_data *data, void *buffer, int count); 492 493 int (*setup_on_usb)(struct hci_dev *hdev); 494 495 int oob_wake_irq; /* irq for out-of-band wake-on-bt */ 496 unsigned cmd_timeout_cnt; 497 }; 498 499 500 static void btusb_intel_cmd_timeout(struct hci_dev *hdev) 501 { 502 struct btusb_data *data = hci_get_drvdata(hdev); 503 struct gpio_desc *reset_gpio = data->reset_gpio; 504 505 if (++data->cmd_timeout_cnt < 5) 506 return; 507 508 if (!reset_gpio) { 509 bt_dev_err(hdev, "No way to reset. Ignoring and continuing"); 510 return; 511 } 512 513 /* 514 * Toggle the hard reset line if the platform provides one. The reset 515 * is going to yank the device off the USB and then replug. So doing 516 * once is enough. The cleanup is handled correctly on the way out 517 * (standard USB disconnect), and the new device is detected cleanly 518 * and bound to the driver again like it should be. 519 */ 520 if (test_and_set_bit(BTUSB_HW_RESET_ACTIVE, &data->flags)) { 521 bt_dev_err(hdev, "last reset failed? Not resetting again"); 522 return; 523 } 524 525 bt_dev_err(hdev, "Initiating HW reset via gpio"); 526 gpiod_set_value_cansleep(reset_gpio, 1); 527 msleep(100); 528 gpiod_set_value_cansleep(reset_gpio, 0); 529 } 530 531 static inline void btusb_free_frags(struct btusb_data *data) 532 { 533 unsigned long flags; 534 535 spin_lock_irqsave(&data->rxlock, flags); 536 537 kfree_skb(data->evt_skb); 538 data->evt_skb = NULL; 539 540 kfree_skb(data->acl_skb); 541 data->acl_skb = NULL; 542 543 kfree_skb(data->sco_skb); 544 data->sco_skb = NULL; 545 546 spin_unlock_irqrestore(&data->rxlock, flags); 547 } 548 549 static int btusb_recv_intr(struct btusb_data *data, void *buffer, int count) 550 { 551 struct sk_buff *skb; 552 unsigned long flags; 553 int err = 0; 554 555 spin_lock_irqsave(&data->rxlock, flags); 556 skb = data->evt_skb; 557 558 while (count) { 559 int len; 560 561 if (!skb) { 562 skb = bt_skb_alloc(HCI_MAX_EVENT_SIZE, GFP_ATOMIC); 563 if (!skb) { 564 err = -ENOMEM; 565 break; 566 } 567 568 hci_skb_pkt_type(skb) = HCI_EVENT_PKT; 569 hci_skb_expect(skb) = HCI_EVENT_HDR_SIZE; 570 } 571 572 len = min_t(uint, hci_skb_expect(skb), count); 573 skb_put_data(skb, buffer, len); 574 575 count -= len; 576 buffer += len; 577 hci_skb_expect(skb) -= len; 578 579 if (skb->len == HCI_EVENT_HDR_SIZE) { 580 /* Complete event header */ 581 hci_skb_expect(skb) = hci_event_hdr(skb)->plen; 582 583 if (skb_tailroom(skb) < hci_skb_expect(skb)) { 584 kfree_skb(skb); 585 skb = NULL; 586 587 err = -EILSEQ; 588 break; 589 } 590 } 591 592 if (!hci_skb_expect(skb)) { 593 /* Complete frame */ 594 data->recv_event(data->hdev, skb); 595 skb = NULL; 596 } 597 } 598 599 data->evt_skb = skb; 600 spin_unlock_irqrestore(&data->rxlock, flags); 601 602 return err; 603 } 604 605 static int btusb_recv_bulk(struct btusb_data *data, void *buffer, int count) 606 { 607 struct sk_buff *skb; 608 unsigned long flags; 609 int err = 0; 610 611 spin_lock_irqsave(&data->rxlock, flags); 612 skb = data->acl_skb; 613 614 while (count) { 615 int len; 616 617 if (!skb) { 618 skb = bt_skb_alloc(HCI_MAX_FRAME_SIZE, GFP_ATOMIC); 619 if (!skb) { 620 err = -ENOMEM; 621 break; 622 } 623 624 hci_skb_pkt_type(skb) = HCI_ACLDATA_PKT; 625 hci_skb_expect(skb) = HCI_ACL_HDR_SIZE; 626 } 627 628 len = min_t(uint, hci_skb_expect(skb), count); 629 skb_put_data(skb, buffer, len); 630 631 count -= len; 632 buffer += len; 633 hci_skb_expect(skb) -= len; 634 635 if (skb->len == HCI_ACL_HDR_SIZE) { 636 __le16 dlen = hci_acl_hdr(skb)->dlen; 637 638 /* Complete ACL header */ 639 hci_skb_expect(skb) = __le16_to_cpu(dlen); 640 641 if (skb_tailroom(skb) < hci_skb_expect(skb)) { 642 kfree_skb(skb); 643 skb = NULL; 644 645 err = -EILSEQ; 646 break; 647 } 648 } 649 650 if (!hci_skb_expect(skb)) { 651 /* Complete frame */ 652 hci_recv_frame(data->hdev, skb); 653 skb = NULL; 654 } 655 } 656 657 data->acl_skb = skb; 658 spin_unlock_irqrestore(&data->rxlock, flags); 659 660 return err; 661 } 662 663 static int btusb_recv_isoc(struct btusb_data *data, void *buffer, int count) 664 { 665 struct sk_buff *skb; 666 unsigned long flags; 667 int err = 0; 668 669 spin_lock_irqsave(&data->rxlock, flags); 670 skb = data->sco_skb; 671 672 while (count) { 673 int len; 674 675 if (!skb) { 676 skb = bt_skb_alloc(HCI_MAX_SCO_SIZE, GFP_ATOMIC); 677 if (!skb) { 678 err = -ENOMEM; 679 break; 680 } 681 682 hci_skb_pkt_type(skb) = HCI_SCODATA_PKT; 683 hci_skb_expect(skb) = HCI_SCO_HDR_SIZE; 684 } 685 686 len = min_t(uint, hci_skb_expect(skb), count); 687 skb_put_data(skb, buffer, len); 688 689 count -= len; 690 buffer += len; 691 hci_skb_expect(skb) -= len; 692 693 if (skb->len == HCI_SCO_HDR_SIZE) { 694 /* Complete SCO header */ 695 hci_skb_expect(skb) = hci_sco_hdr(skb)->dlen; 696 697 if (skb_tailroom(skb) < hci_skb_expect(skb)) { 698 kfree_skb(skb); 699 skb = NULL; 700 701 err = -EILSEQ; 702 break; 703 } 704 } 705 706 if (!hci_skb_expect(skb)) { 707 /* Complete frame */ 708 hci_recv_frame(data->hdev, skb); 709 skb = NULL; 710 } 711 } 712 713 data->sco_skb = skb; 714 spin_unlock_irqrestore(&data->rxlock, flags); 715 716 return err; 717 } 718 719 static void btusb_intr_complete(struct urb *urb) 720 { 721 struct hci_dev *hdev = urb->context; 722 struct btusb_data *data = hci_get_drvdata(hdev); 723 int err; 724 725 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status, 726 urb->actual_length); 727 728 if (!test_bit(HCI_RUNNING, &hdev->flags)) 729 return; 730 731 if (urb->status == 0) { 732 hdev->stat.byte_rx += urb->actual_length; 733 734 if (btusb_recv_intr(data, urb->transfer_buffer, 735 urb->actual_length) < 0) { 736 bt_dev_err(hdev, "corrupted event packet"); 737 hdev->stat.err_rx++; 738 } 739 } else if (urb->status == -ENOENT) { 740 /* Avoid suspend failed when usb_kill_urb */ 741 return; 742 } 743 744 if (!test_bit(BTUSB_INTR_RUNNING, &data->flags)) 745 return; 746 747 usb_mark_last_busy(data->udev); 748 usb_anchor_urb(urb, &data->intr_anchor); 749 750 err = usb_submit_urb(urb, GFP_ATOMIC); 751 if (err < 0) { 752 /* -EPERM: urb is being killed; 753 * -ENODEV: device got disconnected 754 */ 755 if (err != -EPERM && err != -ENODEV) 756 bt_dev_err(hdev, "urb %p failed to resubmit (%d)", 757 urb, -err); 758 usb_unanchor_urb(urb); 759 } 760 } 761 762 static int btusb_submit_intr_urb(struct hci_dev *hdev, gfp_t mem_flags) 763 { 764 struct btusb_data *data = hci_get_drvdata(hdev); 765 struct urb *urb; 766 unsigned char *buf; 767 unsigned int pipe; 768 int err, size; 769 770 BT_DBG("%s", hdev->name); 771 772 if (!data->intr_ep) 773 return -ENODEV; 774 775 urb = usb_alloc_urb(0, mem_flags); 776 if (!urb) 777 return -ENOMEM; 778 779 size = le16_to_cpu(data->intr_ep->wMaxPacketSize); 780 781 buf = kmalloc(size, mem_flags); 782 if (!buf) { 783 usb_free_urb(urb); 784 return -ENOMEM; 785 } 786 787 pipe = usb_rcvintpipe(data->udev, data->intr_ep->bEndpointAddress); 788 789 usb_fill_int_urb(urb, data->udev, pipe, buf, size, 790 btusb_intr_complete, hdev, data->intr_ep->bInterval); 791 792 urb->transfer_flags |= URB_FREE_BUFFER; 793 794 usb_anchor_urb(urb, &data->intr_anchor); 795 796 err = usb_submit_urb(urb, mem_flags); 797 if (err < 0) { 798 if (err != -EPERM && err != -ENODEV) 799 bt_dev_err(hdev, "urb %p submission failed (%d)", 800 urb, -err); 801 usb_unanchor_urb(urb); 802 } 803 804 usb_free_urb(urb); 805 806 return err; 807 } 808 809 static void btusb_bulk_complete(struct urb *urb) 810 { 811 struct hci_dev *hdev = urb->context; 812 struct btusb_data *data = hci_get_drvdata(hdev); 813 int err; 814 815 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status, 816 urb->actual_length); 817 818 if (!test_bit(HCI_RUNNING, &hdev->flags)) 819 return; 820 821 if (urb->status == 0) { 822 hdev->stat.byte_rx += urb->actual_length; 823 824 if (data->recv_bulk(data, urb->transfer_buffer, 825 urb->actual_length) < 0) { 826 bt_dev_err(hdev, "corrupted ACL packet"); 827 hdev->stat.err_rx++; 828 } 829 } else if (urb->status == -ENOENT) { 830 /* Avoid suspend failed when usb_kill_urb */ 831 return; 832 } 833 834 if (!test_bit(BTUSB_BULK_RUNNING, &data->flags)) 835 return; 836 837 usb_anchor_urb(urb, &data->bulk_anchor); 838 usb_mark_last_busy(data->udev); 839 840 err = usb_submit_urb(urb, GFP_ATOMIC); 841 if (err < 0) { 842 /* -EPERM: urb is being killed; 843 * -ENODEV: device got disconnected 844 */ 845 if (err != -EPERM && err != -ENODEV) 846 bt_dev_err(hdev, "urb %p failed to resubmit (%d)", 847 urb, -err); 848 usb_unanchor_urb(urb); 849 } 850 } 851 852 static int btusb_submit_bulk_urb(struct hci_dev *hdev, gfp_t mem_flags) 853 { 854 struct btusb_data *data = hci_get_drvdata(hdev); 855 struct urb *urb; 856 unsigned char *buf; 857 unsigned int pipe; 858 int err, size = HCI_MAX_FRAME_SIZE; 859 860 BT_DBG("%s", hdev->name); 861 862 if (!data->bulk_rx_ep) 863 return -ENODEV; 864 865 urb = usb_alloc_urb(0, mem_flags); 866 if (!urb) 867 return -ENOMEM; 868 869 buf = kmalloc(size, mem_flags); 870 if (!buf) { 871 usb_free_urb(urb); 872 return -ENOMEM; 873 } 874 875 pipe = usb_rcvbulkpipe(data->udev, data->bulk_rx_ep->bEndpointAddress); 876 877 usb_fill_bulk_urb(urb, data->udev, pipe, buf, size, 878 btusb_bulk_complete, hdev); 879 880 urb->transfer_flags |= URB_FREE_BUFFER; 881 882 usb_mark_last_busy(data->udev); 883 usb_anchor_urb(urb, &data->bulk_anchor); 884 885 err = usb_submit_urb(urb, mem_flags); 886 if (err < 0) { 887 if (err != -EPERM && err != -ENODEV) 888 bt_dev_err(hdev, "urb %p submission failed (%d)", 889 urb, -err); 890 usb_unanchor_urb(urb); 891 } 892 893 usb_free_urb(urb); 894 895 return err; 896 } 897 898 static void btusb_isoc_complete(struct urb *urb) 899 { 900 struct hci_dev *hdev = urb->context; 901 struct btusb_data *data = hci_get_drvdata(hdev); 902 int i, err; 903 904 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status, 905 urb->actual_length); 906 907 if (!test_bit(HCI_RUNNING, &hdev->flags)) 908 return; 909 910 if (urb->status == 0) { 911 for (i = 0; i < urb->number_of_packets; i++) { 912 unsigned int offset = urb->iso_frame_desc[i].offset; 913 unsigned int length = urb->iso_frame_desc[i].actual_length; 914 915 if (urb->iso_frame_desc[i].status) 916 continue; 917 918 hdev->stat.byte_rx += length; 919 920 if (btusb_recv_isoc(data, urb->transfer_buffer + offset, 921 length) < 0) { 922 bt_dev_err(hdev, "corrupted SCO packet"); 923 hdev->stat.err_rx++; 924 } 925 } 926 } else if (urb->status == -ENOENT) { 927 /* Avoid suspend failed when usb_kill_urb */ 928 return; 929 } 930 931 if (!test_bit(BTUSB_ISOC_RUNNING, &data->flags)) 932 return; 933 934 usb_anchor_urb(urb, &data->isoc_anchor); 935 936 err = usb_submit_urb(urb, GFP_ATOMIC); 937 if (err < 0) { 938 /* -EPERM: urb is being killed; 939 * -ENODEV: device got disconnected 940 */ 941 if (err != -EPERM && err != -ENODEV) 942 bt_dev_err(hdev, "urb %p failed to resubmit (%d)", 943 urb, -err); 944 usb_unanchor_urb(urb); 945 } 946 } 947 948 static inline void __fill_isoc_descriptor(struct urb *urb, int len, int mtu) 949 { 950 int i, offset = 0; 951 952 BT_DBG("len %d mtu %d", len, mtu); 953 954 for (i = 0; i < BTUSB_MAX_ISOC_FRAMES && len >= mtu; 955 i++, offset += mtu, len -= mtu) { 956 urb->iso_frame_desc[i].offset = offset; 957 urb->iso_frame_desc[i].length = mtu; 958 } 959 960 if (len && i < BTUSB_MAX_ISOC_FRAMES) { 961 urb->iso_frame_desc[i].offset = offset; 962 urb->iso_frame_desc[i].length = len; 963 i++; 964 } 965 966 urb->number_of_packets = i; 967 } 968 969 static int btusb_submit_isoc_urb(struct hci_dev *hdev, gfp_t mem_flags) 970 { 971 struct btusb_data *data = hci_get_drvdata(hdev); 972 struct urb *urb; 973 unsigned char *buf; 974 unsigned int pipe; 975 int err, size; 976 977 BT_DBG("%s", hdev->name); 978 979 if (!data->isoc_rx_ep) 980 return -ENODEV; 981 982 urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, mem_flags); 983 if (!urb) 984 return -ENOMEM; 985 986 size = le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize) * 987 BTUSB_MAX_ISOC_FRAMES; 988 989 buf = kmalloc(size, mem_flags); 990 if (!buf) { 991 usb_free_urb(urb); 992 return -ENOMEM; 993 } 994 995 pipe = usb_rcvisocpipe(data->udev, data->isoc_rx_ep->bEndpointAddress); 996 997 usb_fill_int_urb(urb, data->udev, pipe, buf, size, btusb_isoc_complete, 998 hdev, data->isoc_rx_ep->bInterval); 999 1000 urb->transfer_flags = URB_FREE_BUFFER | URB_ISO_ASAP; 1001 1002 __fill_isoc_descriptor(urb, size, 1003 le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize)); 1004 1005 usb_anchor_urb(urb, &data->isoc_anchor); 1006 1007 err = usb_submit_urb(urb, mem_flags); 1008 if (err < 0) { 1009 if (err != -EPERM && err != -ENODEV) 1010 bt_dev_err(hdev, "urb %p submission failed (%d)", 1011 urb, -err); 1012 usb_unanchor_urb(urb); 1013 } 1014 1015 usb_free_urb(urb); 1016 1017 return err; 1018 } 1019 1020 static void btusb_diag_complete(struct urb *urb) 1021 { 1022 struct hci_dev *hdev = urb->context; 1023 struct btusb_data *data = hci_get_drvdata(hdev); 1024 int err; 1025 1026 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status, 1027 urb->actual_length); 1028 1029 if (urb->status == 0) { 1030 struct sk_buff *skb; 1031 1032 skb = bt_skb_alloc(urb->actual_length, GFP_ATOMIC); 1033 if (skb) { 1034 skb_put_data(skb, urb->transfer_buffer, 1035 urb->actual_length); 1036 hci_recv_diag(hdev, skb); 1037 } 1038 } else if (urb->status == -ENOENT) { 1039 /* Avoid suspend failed when usb_kill_urb */ 1040 return; 1041 } 1042 1043 if (!test_bit(BTUSB_DIAG_RUNNING, &data->flags)) 1044 return; 1045 1046 usb_anchor_urb(urb, &data->diag_anchor); 1047 usb_mark_last_busy(data->udev); 1048 1049 err = usb_submit_urb(urb, GFP_ATOMIC); 1050 if (err < 0) { 1051 /* -EPERM: urb is being killed; 1052 * -ENODEV: device got disconnected 1053 */ 1054 if (err != -EPERM && err != -ENODEV) 1055 bt_dev_err(hdev, "urb %p failed to resubmit (%d)", 1056 urb, -err); 1057 usb_unanchor_urb(urb); 1058 } 1059 } 1060 1061 static int btusb_submit_diag_urb(struct hci_dev *hdev, gfp_t mem_flags) 1062 { 1063 struct btusb_data *data = hci_get_drvdata(hdev); 1064 struct urb *urb; 1065 unsigned char *buf; 1066 unsigned int pipe; 1067 int err, size = HCI_MAX_FRAME_SIZE; 1068 1069 BT_DBG("%s", hdev->name); 1070 1071 if (!data->diag_rx_ep) 1072 return -ENODEV; 1073 1074 urb = usb_alloc_urb(0, mem_flags); 1075 if (!urb) 1076 return -ENOMEM; 1077 1078 buf = kmalloc(size, mem_flags); 1079 if (!buf) { 1080 usb_free_urb(urb); 1081 return -ENOMEM; 1082 } 1083 1084 pipe = usb_rcvbulkpipe(data->udev, data->diag_rx_ep->bEndpointAddress); 1085 1086 usb_fill_bulk_urb(urb, data->udev, pipe, buf, size, 1087 btusb_diag_complete, hdev); 1088 1089 urb->transfer_flags |= URB_FREE_BUFFER; 1090 1091 usb_mark_last_busy(data->udev); 1092 usb_anchor_urb(urb, &data->diag_anchor); 1093 1094 err = usb_submit_urb(urb, mem_flags); 1095 if (err < 0) { 1096 if (err != -EPERM && err != -ENODEV) 1097 bt_dev_err(hdev, "urb %p submission failed (%d)", 1098 urb, -err); 1099 usb_unanchor_urb(urb); 1100 } 1101 1102 usb_free_urb(urb); 1103 1104 return err; 1105 } 1106 1107 static void btusb_tx_complete(struct urb *urb) 1108 { 1109 struct sk_buff *skb = urb->context; 1110 struct hci_dev *hdev = (struct hci_dev *)skb->dev; 1111 struct btusb_data *data = hci_get_drvdata(hdev); 1112 unsigned long flags; 1113 1114 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status, 1115 urb->actual_length); 1116 1117 if (!test_bit(HCI_RUNNING, &hdev->flags)) 1118 goto done; 1119 1120 if (!urb->status) 1121 hdev->stat.byte_tx += urb->transfer_buffer_length; 1122 else 1123 hdev->stat.err_tx++; 1124 1125 done: 1126 spin_lock_irqsave(&data->txlock, flags); 1127 data->tx_in_flight--; 1128 spin_unlock_irqrestore(&data->txlock, flags); 1129 1130 kfree(urb->setup_packet); 1131 1132 kfree_skb(skb); 1133 } 1134 1135 static void btusb_isoc_tx_complete(struct urb *urb) 1136 { 1137 struct sk_buff *skb = urb->context; 1138 struct hci_dev *hdev = (struct hci_dev *)skb->dev; 1139 1140 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status, 1141 urb->actual_length); 1142 1143 if (!test_bit(HCI_RUNNING, &hdev->flags)) 1144 goto done; 1145 1146 if (!urb->status) 1147 hdev->stat.byte_tx += urb->transfer_buffer_length; 1148 else 1149 hdev->stat.err_tx++; 1150 1151 done: 1152 kfree(urb->setup_packet); 1153 1154 kfree_skb(skb); 1155 } 1156 1157 static int btusb_open(struct hci_dev *hdev) 1158 { 1159 struct btusb_data *data = hci_get_drvdata(hdev); 1160 int err; 1161 1162 BT_DBG("%s", hdev->name); 1163 1164 err = usb_autopm_get_interface(data->intf); 1165 if (err < 0) 1166 return err; 1167 1168 /* Patching USB firmware files prior to starting any URBs of HCI path 1169 * It is more safe to use USB bulk channel for downloading USB patch 1170 */ 1171 if (data->setup_on_usb) { 1172 err = data->setup_on_usb(hdev); 1173 if (err < 0) 1174 return err; 1175 } 1176 1177 data->intf->needs_remote_wakeup = 1; 1178 /* device specific wakeup source enabled and required for USB 1179 * remote wakeup while host is suspended 1180 */ 1181 device_wakeup_enable(&data->udev->dev); 1182 1183 if (test_and_set_bit(BTUSB_INTR_RUNNING, &data->flags)) 1184 goto done; 1185 1186 err = btusb_submit_intr_urb(hdev, GFP_KERNEL); 1187 if (err < 0) 1188 goto failed; 1189 1190 err = btusb_submit_bulk_urb(hdev, GFP_KERNEL); 1191 if (err < 0) { 1192 usb_kill_anchored_urbs(&data->intr_anchor); 1193 goto failed; 1194 } 1195 1196 set_bit(BTUSB_BULK_RUNNING, &data->flags); 1197 btusb_submit_bulk_urb(hdev, GFP_KERNEL); 1198 1199 if (data->diag) { 1200 if (!btusb_submit_diag_urb(hdev, GFP_KERNEL)) 1201 set_bit(BTUSB_DIAG_RUNNING, &data->flags); 1202 } 1203 1204 done: 1205 usb_autopm_put_interface(data->intf); 1206 return 0; 1207 1208 failed: 1209 clear_bit(BTUSB_INTR_RUNNING, &data->flags); 1210 usb_autopm_put_interface(data->intf); 1211 return err; 1212 } 1213 1214 static void btusb_stop_traffic(struct btusb_data *data) 1215 { 1216 usb_kill_anchored_urbs(&data->intr_anchor); 1217 usb_kill_anchored_urbs(&data->bulk_anchor); 1218 usb_kill_anchored_urbs(&data->isoc_anchor); 1219 usb_kill_anchored_urbs(&data->diag_anchor); 1220 } 1221 1222 static int btusb_close(struct hci_dev *hdev) 1223 { 1224 struct btusb_data *data = hci_get_drvdata(hdev); 1225 int err; 1226 1227 BT_DBG("%s", hdev->name); 1228 1229 cancel_work_sync(&data->work); 1230 cancel_work_sync(&data->waker); 1231 1232 clear_bit(BTUSB_ISOC_RUNNING, &data->flags); 1233 clear_bit(BTUSB_BULK_RUNNING, &data->flags); 1234 clear_bit(BTUSB_INTR_RUNNING, &data->flags); 1235 clear_bit(BTUSB_DIAG_RUNNING, &data->flags); 1236 1237 btusb_stop_traffic(data); 1238 btusb_free_frags(data); 1239 1240 err = usb_autopm_get_interface(data->intf); 1241 if (err < 0) 1242 goto failed; 1243 1244 data->intf->needs_remote_wakeup = 0; 1245 device_wakeup_disable(&data->udev->dev); 1246 usb_autopm_put_interface(data->intf); 1247 1248 failed: 1249 usb_scuttle_anchored_urbs(&data->deferred); 1250 return 0; 1251 } 1252 1253 static int btusb_flush(struct hci_dev *hdev) 1254 { 1255 struct btusb_data *data = hci_get_drvdata(hdev); 1256 1257 BT_DBG("%s", hdev->name); 1258 1259 usb_kill_anchored_urbs(&data->tx_anchor); 1260 btusb_free_frags(data); 1261 1262 return 0; 1263 } 1264 1265 static struct urb *alloc_ctrl_urb(struct hci_dev *hdev, struct sk_buff *skb) 1266 { 1267 struct btusb_data *data = hci_get_drvdata(hdev); 1268 struct usb_ctrlrequest *dr; 1269 struct urb *urb; 1270 unsigned int pipe; 1271 1272 urb = usb_alloc_urb(0, GFP_KERNEL); 1273 if (!urb) 1274 return ERR_PTR(-ENOMEM); 1275 1276 dr = kmalloc(sizeof(*dr), GFP_KERNEL); 1277 if (!dr) { 1278 usb_free_urb(urb); 1279 return ERR_PTR(-ENOMEM); 1280 } 1281 1282 dr->bRequestType = data->cmdreq_type; 1283 dr->bRequest = data->cmdreq; 1284 dr->wIndex = 0; 1285 dr->wValue = 0; 1286 dr->wLength = __cpu_to_le16(skb->len); 1287 1288 pipe = usb_sndctrlpipe(data->udev, 0x00); 1289 1290 usb_fill_control_urb(urb, data->udev, pipe, (void *)dr, 1291 skb->data, skb->len, btusb_tx_complete, skb); 1292 1293 skb->dev = (void *)hdev; 1294 1295 return urb; 1296 } 1297 1298 static struct urb *alloc_bulk_urb(struct hci_dev *hdev, struct sk_buff *skb) 1299 { 1300 struct btusb_data *data = hci_get_drvdata(hdev); 1301 struct urb *urb; 1302 unsigned int pipe; 1303 1304 if (!data->bulk_tx_ep) 1305 return ERR_PTR(-ENODEV); 1306 1307 urb = usb_alloc_urb(0, GFP_KERNEL); 1308 if (!urb) 1309 return ERR_PTR(-ENOMEM); 1310 1311 pipe = usb_sndbulkpipe(data->udev, data->bulk_tx_ep->bEndpointAddress); 1312 1313 usb_fill_bulk_urb(urb, data->udev, pipe, 1314 skb->data, skb->len, btusb_tx_complete, skb); 1315 1316 skb->dev = (void *)hdev; 1317 1318 return urb; 1319 } 1320 1321 static struct urb *alloc_isoc_urb(struct hci_dev *hdev, struct sk_buff *skb) 1322 { 1323 struct btusb_data *data = hci_get_drvdata(hdev); 1324 struct urb *urb; 1325 unsigned int pipe; 1326 1327 if (!data->isoc_tx_ep) 1328 return ERR_PTR(-ENODEV); 1329 1330 urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, GFP_KERNEL); 1331 if (!urb) 1332 return ERR_PTR(-ENOMEM); 1333 1334 pipe = usb_sndisocpipe(data->udev, data->isoc_tx_ep->bEndpointAddress); 1335 1336 usb_fill_int_urb(urb, data->udev, pipe, 1337 skb->data, skb->len, btusb_isoc_tx_complete, 1338 skb, data->isoc_tx_ep->bInterval); 1339 1340 urb->transfer_flags = URB_ISO_ASAP; 1341 1342 __fill_isoc_descriptor(urb, skb->len, 1343 le16_to_cpu(data->isoc_tx_ep->wMaxPacketSize)); 1344 1345 skb->dev = (void *)hdev; 1346 1347 return urb; 1348 } 1349 1350 static int submit_tx_urb(struct hci_dev *hdev, struct urb *urb) 1351 { 1352 struct btusb_data *data = hci_get_drvdata(hdev); 1353 int err; 1354 1355 usb_anchor_urb(urb, &data->tx_anchor); 1356 1357 err = usb_submit_urb(urb, GFP_KERNEL); 1358 if (err < 0) { 1359 if (err != -EPERM && err != -ENODEV) 1360 bt_dev_err(hdev, "urb %p submission failed (%d)", 1361 urb, -err); 1362 kfree(urb->setup_packet); 1363 usb_unanchor_urb(urb); 1364 } else { 1365 usb_mark_last_busy(data->udev); 1366 } 1367 1368 usb_free_urb(urb); 1369 return err; 1370 } 1371 1372 static int submit_or_queue_tx_urb(struct hci_dev *hdev, struct urb *urb) 1373 { 1374 struct btusb_data *data = hci_get_drvdata(hdev); 1375 unsigned long flags; 1376 bool suspending; 1377 1378 spin_lock_irqsave(&data->txlock, flags); 1379 suspending = test_bit(BTUSB_SUSPENDING, &data->flags); 1380 if (!suspending) 1381 data->tx_in_flight++; 1382 spin_unlock_irqrestore(&data->txlock, flags); 1383 1384 if (!suspending) 1385 return submit_tx_urb(hdev, urb); 1386 1387 usb_anchor_urb(urb, &data->deferred); 1388 schedule_work(&data->waker); 1389 1390 usb_free_urb(urb); 1391 return 0; 1392 } 1393 1394 static int btusb_send_frame(struct hci_dev *hdev, struct sk_buff *skb) 1395 { 1396 struct urb *urb; 1397 1398 BT_DBG("%s", hdev->name); 1399 1400 switch (hci_skb_pkt_type(skb)) { 1401 case HCI_COMMAND_PKT: 1402 urb = alloc_ctrl_urb(hdev, skb); 1403 if (IS_ERR(urb)) 1404 return PTR_ERR(urb); 1405 1406 hdev->stat.cmd_tx++; 1407 return submit_or_queue_tx_urb(hdev, urb); 1408 1409 case HCI_ACLDATA_PKT: 1410 urb = alloc_bulk_urb(hdev, skb); 1411 if (IS_ERR(urb)) 1412 return PTR_ERR(urb); 1413 1414 hdev->stat.acl_tx++; 1415 return submit_or_queue_tx_urb(hdev, urb); 1416 1417 case HCI_SCODATA_PKT: 1418 if (hci_conn_num(hdev, SCO_LINK) < 1) 1419 return -ENODEV; 1420 1421 urb = alloc_isoc_urb(hdev, skb); 1422 if (IS_ERR(urb)) 1423 return PTR_ERR(urb); 1424 1425 hdev->stat.sco_tx++; 1426 return submit_tx_urb(hdev, urb); 1427 } 1428 1429 return -EILSEQ; 1430 } 1431 1432 static void btusb_notify(struct hci_dev *hdev, unsigned int evt) 1433 { 1434 struct btusb_data *data = hci_get_drvdata(hdev); 1435 1436 BT_DBG("%s evt %d", hdev->name, evt); 1437 1438 if (hci_conn_num(hdev, SCO_LINK) != data->sco_num) { 1439 data->sco_num = hci_conn_num(hdev, SCO_LINK); 1440 schedule_work(&data->work); 1441 } 1442 } 1443 1444 static inline int __set_isoc_interface(struct hci_dev *hdev, int altsetting) 1445 { 1446 struct btusb_data *data = hci_get_drvdata(hdev); 1447 struct usb_interface *intf = data->isoc; 1448 struct usb_endpoint_descriptor *ep_desc; 1449 int i, err; 1450 1451 if (!data->isoc) 1452 return -ENODEV; 1453 1454 err = usb_set_interface(data->udev, data->isoc_ifnum, altsetting); 1455 if (err < 0) { 1456 bt_dev_err(hdev, "setting interface failed (%d)", -err); 1457 return err; 1458 } 1459 1460 data->isoc_altsetting = altsetting; 1461 1462 data->isoc_tx_ep = NULL; 1463 data->isoc_rx_ep = NULL; 1464 1465 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) { 1466 ep_desc = &intf->cur_altsetting->endpoint[i].desc; 1467 1468 if (!data->isoc_tx_ep && usb_endpoint_is_isoc_out(ep_desc)) { 1469 data->isoc_tx_ep = ep_desc; 1470 continue; 1471 } 1472 1473 if (!data->isoc_rx_ep && usb_endpoint_is_isoc_in(ep_desc)) { 1474 data->isoc_rx_ep = ep_desc; 1475 continue; 1476 } 1477 } 1478 1479 if (!data->isoc_tx_ep || !data->isoc_rx_ep) { 1480 bt_dev_err(hdev, "invalid SCO descriptors"); 1481 return -ENODEV; 1482 } 1483 1484 return 0; 1485 } 1486 1487 static void btusb_work(struct work_struct *work) 1488 { 1489 struct btusb_data *data = container_of(work, struct btusb_data, work); 1490 struct hci_dev *hdev = data->hdev; 1491 int new_alts; 1492 int err; 1493 1494 if (data->sco_num > 0) { 1495 if (!test_bit(BTUSB_DID_ISO_RESUME, &data->flags)) { 1496 err = usb_autopm_get_interface(data->isoc ? data->isoc : data->intf); 1497 if (err < 0) { 1498 clear_bit(BTUSB_ISOC_RUNNING, &data->flags); 1499 usb_kill_anchored_urbs(&data->isoc_anchor); 1500 return; 1501 } 1502 1503 set_bit(BTUSB_DID_ISO_RESUME, &data->flags); 1504 } 1505 1506 if (hdev->voice_setting & 0x0020) { 1507 static const int alts[3] = { 2, 4, 5 }; 1508 1509 new_alts = alts[data->sco_num - 1]; 1510 } else { 1511 new_alts = data->sco_num; 1512 } 1513 1514 if (data->isoc_altsetting != new_alts) { 1515 unsigned long flags; 1516 1517 clear_bit(BTUSB_ISOC_RUNNING, &data->flags); 1518 usb_kill_anchored_urbs(&data->isoc_anchor); 1519 1520 /* When isochronous alternate setting needs to be 1521 * changed, because SCO connection has been added 1522 * or removed, a packet fragment may be left in the 1523 * reassembling state. This could lead to wrongly 1524 * assembled fragments. 1525 * 1526 * Clear outstanding fragment when selecting a new 1527 * alternate setting. 1528 */ 1529 spin_lock_irqsave(&data->rxlock, flags); 1530 kfree_skb(data->sco_skb); 1531 data->sco_skb = NULL; 1532 spin_unlock_irqrestore(&data->rxlock, flags); 1533 1534 if (__set_isoc_interface(hdev, new_alts) < 0) 1535 return; 1536 } 1537 1538 if (!test_and_set_bit(BTUSB_ISOC_RUNNING, &data->flags)) { 1539 if (btusb_submit_isoc_urb(hdev, GFP_KERNEL) < 0) 1540 clear_bit(BTUSB_ISOC_RUNNING, &data->flags); 1541 else 1542 btusb_submit_isoc_urb(hdev, GFP_KERNEL); 1543 } 1544 } else { 1545 clear_bit(BTUSB_ISOC_RUNNING, &data->flags); 1546 usb_kill_anchored_urbs(&data->isoc_anchor); 1547 1548 __set_isoc_interface(hdev, 0); 1549 if (test_and_clear_bit(BTUSB_DID_ISO_RESUME, &data->flags)) 1550 usb_autopm_put_interface(data->isoc ? data->isoc : data->intf); 1551 } 1552 } 1553 1554 static void btusb_waker(struct work_struct *work) 1555 { 1556 struct btusb_data *data = container_of(work, struct btusb_data, waker); 1557 int err; 1558 1559 err = usb_autopm_get_interface(data->intf); 1560 if (err < 0) 1561 return; 1562 1563 usb_autopm_put_interface(data->intf); 1564 } 1565 1566 static int btusb_setup_bcm92035(struct hci_dev *hdev) 1567 { 1568 struct sk_buff *skb; 1569 u8 val = 0x00; 1570 1571 BT_DBG("%s", hdev->name); 1572 1573 skb = __hci_cmd_sync(hdev, 0xfc3b, 1, &val, HCI_INIT_TIMEOUT); 1574 if (IS_ERR(skb)) 1575 bt_dev_err(hdev, "BCM92035 command failed (%ld)", PTR_ERR(skb)); 1576 else 1577 kfree_skb(skb); 1578 1579 return 0; 1580 } 1581 1582 static int btusb_setup_csr(struct hci_dev *hdev) 1583 { 1584 struct hci_rp_read_local_version *rp; 1585 struct sk_buff *skb; 1586 1587 BT_DBG("%s", hdev->name); 1588 1589 skb = __hci_cmd_sync(hdev, HCI_OP_READ_LOCAL_VERSION, 0, NULL, 1590 HCI_INIT_TIMEOUT); 1591 if (IS_ERR(skb)) { 1592 int err = PTR_ERR(skb); 1593 bt_dev_err(hdev, "CSR: Local version failed (%d)", err); 1594 return err; 1595 } 1596 1597 if (skb->len != sizeof(struct hci_rp_read_local_version)) { 1598 bt_dev_err(hdev, "CSR: Local version length mismatch"); 1599 kfree_skb(skb); 1600 return -EIO; 1601 } 1602 1603 rp = (struct hci_rp_read_local_version *)skb->data; 1604 1605 /* Detect controllers which aren't real CSR ones. */ 1606 if (le16_to_cpu(rp->manufacturer) != 10 || 1607 le16_to_cpu(rp->lmp_subver) == 0x0c5c) { 1608 /* Clear the reset quirk since this is not an actual 1609 * early Bluetooth 1.1 device from CSR. 1610 */ 1611 clear_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks); 1612 1613 /* These fake CSR controllers have all a broken 1614 * stored link key handling and so just disable it. 1615 */ 1616 set_bit(HCI_QUIRK_BROKEN_STORED_LINK_KEY, &hdev->quirks); 1617 } 1618 1619 kfree_skb(skb); 1620 1621 return 0; 1622 } 1623 1624 static const struct firmware *btusb_setup_intel_get_fw(struct hci_dev *hdev, 1625 struct intel_version *ver) 1626 { 1627 const struct firmware *fw; 1628 char fwname[64]; 1629 int ret; 1630 1631 snprintf(fwname, sizeof(fwname), 1632 "intel/ibt-hw-%x.%x.%x-fw-%x.%x.%x.%x.%x.bseq", 1633 ver->hw_platform, ver->hw_variant, ver->hw_revision, 1634 ver->fw_variant, ver->fw_revision, ver->fw_build_num, 1635 ver->fw_build_ww, ver->fw_build_yy); 1636 1637 ret = request_firmware(&fw, fwname, &hdev->dev); 1638 if (ret < 0) { 1639 if (ret == -EINVAL) { 1640 bt_dev_err(hdev, "Intel firmware file request failed (%d)", 1641 ret); 1642 return NULL; 1643 } 1644 1645 bt_dev_err(hdev, "failed to open Intel firmware file: %s (%d)", 1646 fwname, ret); 1647 1648 /* If the correct firmware patch file is not found, use the 1649 * default firmware patch file instead 1650 */ 1651 snprintf(fwname, sizeof(fwname), "intel/ibt-hw-%x.%x.bseq", 1652 ver->hw_platform, ver->hw_variant); 1653 if (request_firmware(&fw, fwname, &hdev->dev) < 0) { 1654 bt_dev_err(hdev, "failed to open default fw file: %s", 1655 fwname); 1656 return NULL; 1657 } 1658 } 1659 1660 bt_dev_info(hdev, "Intel Bluetooth firmware file: %s", fwname); 1661 1662 return fw; 1663 } 1664 1665 static int btusb_setup_intel_patching(struct hci_dev *hdev, 1666 const struct firmware *fw, 1667 const u8 **fw_ptr, int *disable_patch) 1668 { 1669 struct sk_buff *skb; 1670 struct hci_command_hdr *cmd; 1671 const u8 *cmd_param; 1672 struct hci_event_hdr *evt = NULL; 1673 const u8 *evt_param = NULL; 1674 int remain = fw->size - (*fw_ptr - fw->data); 1675 1676 /* The first byte indicates the types of the patch command or event. 1677 * 0x01 means HCI command and 0x02 is HCI event. If the first bytes 1678 * in the current firmware buffer doesn't start with 0x01 or 1679 * the size of remain buffer is smaller than HCI command header, 1680 * the firmware file is corrupted and it should stop the patching 1681 * process. 1682 */ 1683 if (remain > HCI_COMMAND_HDR_SIZE && *fw_ptr[0] != 0x01) { 1684 bt_dev_err(hdev, "Intel fw corrupted: invalid cmd read"); 1685 return -EINVAL; 1686 } 1687 (*fw_ptr)++; 1688 remain--; 1689 1690 cmd = (struct hci_command_hdr *)(*fw_ptr); 1691 *fw_ptr += sizeof(*cmd); 1692 remain -= sizeof(*cmd); 1693 1694 /* Ensure that the remain firmware data is long enough than the length 1695 * of command parameter. If not, the firmware file is corrupted. 1696 */ 1697 if (remain < cmd->plen) { 1698 bt_dev_err(hdev, "Intel fw corrupted: invalid cmd len"); 1699 return -EFAULT; 1700 } 1701 1702 /* If there is a command that loads a patch in the firmware 1703 * file, then enable the patch upon success, otherwise just 1704 * disable the manufacturer mode, for example patch activation 1705 * is not required when the default firmware patch file is used 1706 * because there are no patch data to load. 1707 */ 1708 if (*disable_patch && le16_to_cpu(cmd->opcode) == 0xfc8e) 1709 *disable_patch = 0; 1710 1711 cmd_param = *fw_ptr; 1712 *fw_ptr += cmd->plen; 1713 remain -= cmd->plen; 1714 1715 /* This reads the expected events when the above command is sent to the 1716 * device. Some vendor commands expects more than one events, for 1717 * example command status event followed by vendor specific event. 1718 * For this case, it only keeps the last expected event. so the command 1719 * can be sent with __hci_cmd_sync_ev() which returns the sk_buff of 1720 * last expected event. 1721 */ 1722 while (remain > HCI_EVENT_HDR_SIZE && *fw_ptr[0] == 0x02) { 1723 (*fw_ptr)++; 1724 remain--; 1725 1726 evt = (struct hci_event_hdr *)(*fw_ptr); 1727 *fw_ptr += sizeof(*evt); 1728 remain -= sizeof(*evt); 1729 1730 if (remain < evt->plen) { 1731 bt_dev_err(hdev, "Intel fw corrupted: invalid evt len"); 1732 return -EFAULT; 1733 } 1734 1735 evt_param = *fw_ptr; 1736 *fw_ptr += evt->plen; 1737 remain -= evt->plen; 1738 } 1739 1740 /* Every HCI commands in the firmware file has its correspond event. 1741 * If event is not found or remain is smaller than zero, the firmware 1742 * file is corrupted. 1743 */ 1744 if (!evt || !evt_param || remain < 0) { 1745 bt_dev_err(hdev, "Intel fw corrupted: invalid evt read"); 1746 return -EFAULT; 1747 } 1748 1749 skb = __hci_cmd_sync_ev(hdev, le16_to_cpu(cmd->opcode), cmd->plen, 1750 cmd_param, evt->evt, HCI_INIT_TIMEOUT); 1751 if (IS_ERR(skb)) { 1752 bt_dev_err(hdev, "sending Intel patch command (0x%4.4x) failed (%ld)", 1753 cmd->opcode, PTR_ERR(skb)); 1754 return PTR_ERR(skb); 1755 } 1756 1757 /* It ensures that the returned event matches the event data read from 1758 * the firmware file. At fist, it checks the length and then 1759 * the contents of the event. 1760 */ 1761 if (skb->len != evt->plen) { 1762 bt_dev_err(hdev, "mismatch event length (opcode 0x%4.4x)", 1763 le16_to_cpu(cmd->opcode)); 1764 kfree_skb(skb); 1765 return -EFAULT; 1766 } 1767 1768 if (memcmp(skb->data, evt_param, evt->plen)) { 1769 bt_dev_err(hdev, "mismatch event parameter (opcode 0x%4.4x)", 1770 le16_to_cpu(cmd->opcode)); 1771 kfree_skb(skb); 1772 return -EFAULT; 1773 } 1774 kfree_skb(skb); 1775 1776 return 0; 1777 } 1778 1779 static int btusb_setup_intel(struct hci_dev *hdev) 1780 { 1781 struct sk_buff *skb; 1782 const struct firmware *fw; 1783 const u8 *fw_ptr; 1784 int disable_patch, err; 1785 struct intel_version ver; 1786 1787 BT_DBG("%s", hdev->name); 1788 1789 /* The controller has a bug with the first HCI command sent to it 1790 * returning number of completed commands as zero. This would stall the 1791 * command processing in the Bluetooth core. 1792 * 1793 * As a workaround, send HCI Reset command first which will reset the 1794 * number of completed commands and allow normal command processing 1795 * from now on. 1796 */ 1797 skb = __hci_cmd_sync(hdev, HCI_OP_RESET, 0, NULL, HCI_INIT_TIMEOUT); 1798 if (IS_ERR(skb)) { 1799 bt_dev_err(hdev, "sending initial HCI reset command failed (%ld)", 1800 PTR_ERR(skb)); 1801 return PTR_ERR(skb); 1802 } 1803 kfree_skb(skb); 1804 1805 /* Read Intel specific controller version first to allow selection of 1806 * which firmware file to load. 1807 * 1808 * The returned information are hardware variant and revision plus 1809 * firmware variant, revision and build number. 1810 */ 1811 err = btintel_read_version(hdev, &ver); 1812 if (err) 1813 return err; 1814 1815 bt_dev_info(hdev, "read Intel version: %02x%02x%02x%02x%02x%02x%02x%02x%02x", 1816 ver.hw_platform, ver.hw_variant, ver.hw_revision, 1817 ver.fw_variant, ver.fw_revision, ver.fw_build_num, 1818 ver.fw_build_ww, ver.fw_build_yy, ver.fw_patch_num); 1819 1820 /* fw_patch_num indicates the version of patch the device currently 1821 * have. If there is no patch data in the device, it is always 0x00. 1822 * So, if it is other than 0x00, no need to patch the device again. 1823 */ 1824 if (ver.fw_patch_num) { 1825 bt_dev_info(hdev, "Intel device is already patched. " 1826 "patch num: %02x", ver.fw_patch_num); 1827 goto complete; 1828 } 1829 1830 /* Opens the firmware patch file based on the firmware version read 1831 * from the controller. If it fails to open the matching firmware 1832 * patch file, it tries to open the default firmware patch file. 1833 * If no patch file is found, allow the device to operate without 1834 * a patch. 1835 */ 1836 fw = btusb_setup_intel_get_fw(hdev, &ver); 1837 if (!fw) 1838 goto complete; 1839 fw_ptr = fw->data; 1840 1841 /* Enable the manufacturer mode of the controller. 1842 * Only while this mode is enabled, the driver can download the 1843 * firmware patch data and configuration parameters. 1844 */ 1845 err = btintel_enter_mfg(hdev); 1846 if (err) { 1847 release_firmware(fw); 1848 return err; 1849 } 1850 1851 disable_patch = 1; 1852 1853 /* The firmware data file consists of list of Intel specific HCI 1854 * commands and its expected events. The first byte indicates the 1855 * type of the message, either HCI command or HCI event. 1856 * 1857 * It reads the command and its expected event from the firmware file, 1858 * and send to the controller. Once __hci_cmd_sync_ev() returns, 1859 * the returned event is compared with the event read from the firmware 1860 * file and it will continue until all the messages are downloaded to 1861 * the controller. 1862 * 1863 * Once the firmware patching is completed successfully, 1864 * the manufacturer mode is disabled with reset and activating the 1865 * downloaded patch. 1866 * 1867 * If the firmware patching fails, the manufacturer mode is 1868 * disabled with reset and deactivating the patch. 1869 * 1870 * If the default patch file is used, no reset is done when disabling 1871 * the manufacturer. 1872 */ 1873 while (fw->size > fw_ptr - fw->data) { 1874 int ret; 1875 1876 ret = btusb_setup_intel_patching(hdev, fw, &fw_ptr, 1877 &disable_patch); 1878 if (ret < 0) 1879 goto exit_mfg_deactivate; 1880 } 1881 1882 release_firmware(fw); 1883 1884 if (disable_patch) 1885 goto exit_mfg_disable; 1886 1887 /* Patching completed successfully and disable the manufacturer mode 1888 * with reset and activate the downloaded firmware patches. 1889 */ 1890 err = btintel_exit_mfg(hdev, true, true); 1891 if (err) 1892 return err; 1893 1894 bt_dev_info(hdev, "Intel firmware patch completed and activated"); 1895 1896 goto complete; 1897 1898 exit_mfg_disable: 1899 /* Disable the manufacturer mode without reset */ 1900 err = btintel_exit_mfg(hdev, false, false); 1901 if (err) 1902 return err; 1903 1904 bt_dev_info(hdev, "Intel firmware patch completed"); 1905 1906 goto complete; 1907 1908 exit_mfg_deactivate: 1909 release_firmware(fw); 1910 1911 /* Patching failed. Disable the manufacturer mode with reset and 1912 * deactivate the downloaded firmware patches. 1913 */ 1914 err = btintel_exit_mfg(hdev, true, false); 1915 if (err) 1916 return err; 1917 1918 bt_dev_info(hdev, "Intel firmware patch completed and deactivated"); 1919 1920 complete: 1921 /* Set the event mask for Intel specific vendor events. This enables 1922 * a few extra events that are useful during general operation. 1923 */ 1924 btintel_set_event_mask_mfg(hdev, false); 1925 1926 btintel_check_bdaddr(hdev); 1927 return 0; 1928 } 1929 1930 static int inject_cmd_complete(struct hci_dev *hdev, __u16 opcode) 1931 { 1932 struct sk_buff *skb; 1933 struct hci_event_hdr *hdr; 1934 struct hci_ev_cmd_complete *evt; 1935 1936 skb = bt_skb_alloc(sizeof(*hdr) + sizeof(*evt) + 1, GFP_KERNEL); 1937 if (!skb) 1938 return -ENOMEM; 1939 1940 hdr = skb_put(skb, sizeof(*hdr)); 1941 hdr->evt = HCI_EV_CMD_COMPLETE; 1942 hdr->plen = sizeof(*evt) + 1; 1943 1944 evt = skb_put(skb, sizeof(*evt)); 1945 evt->ncmd = 0x01; 1946 evt->opcode = cpu_to_le16(opcode); 1947 1948 skb_put_u8(skb, 0x00); 1949 1950 hci_skb_pkt_type(skb) = HCI_EVENT_PKT; 1951 1952 return hci_recv_frame(hdev, skb); 1953 } 1954 1955 static int btusb_recv_bulk_intel(struct btusb_data *data, void *buffer, 1956 int count) 1957 { 1958 /* When the device is in bootloader mode, then it can send 1959 * events via the bulk endpoint. These events are treated the 1960 * same way as the ones received from the interrupt endpoint. 1961 */ 1962 if (test_bit(BTUSB_BOOTLOADER, &data->flags)) 1963 return btusb_recv_intr(data, buffer, count); 1964 1965 return btusb_recv_bulk(data, buffer, count); 1966 } 1967 1968 static void btusb_intel_bootup(struct btusb_data *data, const void *ptr, 1969 unsigned int len) 1970 { 1971 const struct intel_bootup *evt = ptr; 1972 1973 if (len != sizeof(*evt)) 1974 return; 1975 1976 if (test_and_clear_bit(BTUSB_BOOTING, &data->flags)) 1977 wake_up_bit(&data->flags, BTUSB_BOOTING); 1978 } 1979 1980 static void btusb_intel_secure_send_result(struct btusb_data *data, 1981 const void *ptr, unsigned int len) 1982 { 1983 const struct intel_secure_send_result *evt = ptr; 1984 1985 if (len != sizeof(*evt)) 1986 return; 1987 1988 if (evt->result) 1989 set_bit(BTUSB_FIRMWARE_FAILED, &data->flags); 1990 1991 if (test_and_clear_bit(BTUSB_DOWNLOADING, &data->flags) && 1992 test_bit(BTUSB_FIRMWARE_LOADED, &data->flags)) 1993 wake_up_bit(&data->flags, BTUSB_DOWNLOADING); 1994 } 1995 1996 static int btusb_recv_event_intel(struct hci_dev *hdev, struct sk_buff *skb) 1997 { 1998 struct btusb_data *data = hci_get_drvdata(hdev); 1999 2000 if (test_bit(BTUSB_BOOTLOADER, &data->flags)) { 2001 struct hci_event_hdr *hdr = (void *)skb->data; 2002 2003 if (skb->len > HCI_EVENT_HDR_SIZE && hdr->evt == 0xff && 2004 hdr->plen > 0) { 2005 const void *ptr = skb->data + HCI_EVENT_HDR_SIZE + 1; 2006 unsigned int len = skb->len - HCI_EVENT_HDR_SIZE - 1; 2007 2008 switch (skb->data[2]) { 2009 case 0x02: 2010 /* When switching to the operational firmware 2011 * the device sends a vendor specific event 2012 * indicating that the bootup completed. 2013 */ 2014 btusb_intel_bootup(data, ptr, len); 2015 break; 2016 case 0x06: 2017 /* When the firmware loading completes the 2018 * device sends out a vendor specific event 2019 * indicating the result of the firmware 2020 * loading. 2021 */ 2022 btusb_intel_secure_send_result(data, ptr, len); 2023 break; 2024 } 2025 } 2026 } 2027 2028 return hci_recv_frame(hdev, skb); 2029 } 2030 2031 static int btusb_send_frame_intel(struct hci_dev *hdev, struct sk_buff *skb) 2032 { 2033 struct btusb_data *data = hci_get_drvdata(hdev); 2034 struct urb *urb; 2035 2036 BT_DBG("%s", hdev->name); 2037 2038 switch (hci_skb_pkt_type(skb)) { 2039 case HCI_COMMAND_PKT: 2040 if (test_bit(BTUSB_BOOTLOADER, &data->flags)) { 2041 struct hci_command_hdr *cmd = (void *)skb->data; 2042 __u16 opcode = le16_to_cpu(cmd->opcode); 2043 2044 /* When in bootloader mode and the command 0xfc09 2045 * is received, it needs to be send down the 2046 * bulk endpoint. So allocate a bulk URB instead. 2047 */ 2048 if (opcode == 0xfc09) 2049 urb = alloc_bulk_urb(hdev, skb); 2050 else 2051 urb = alloc_ctrl_urb(hdev, skb); 2052 2053 /* When the 0xfc01 command is issued to boot into 2054 * the operational firmware, it will actually not 2055 * send a command complete event. To keep the flow 2056 * control working inject that event here. 2057 */ 2058 if (opcode == 0xfc01) 2059 inject_cmd_complete(hdev, opcode); 2060 } else { 2061 urb = alloc_ctrl_urb(hdev, skb); 2062 } 2063 if (IS_ERR(urb)) 2064 return PTR_ERR(urb); 2065 2066 hdev->stat.cmd_tx++; 2067 return submit_or_queue_tx_urb(hdev, urb); 2068 2069 case HCI_ACLDATA_PKT: 2070 urb = alloc_bulk_urb(hdev, skb); 2071 if (IS_ERR(urb)) 2072 return PTR_ERR(urb); 2073 2074 hdev->stat.acl_tx++; 2075 return submit_or_queue_tx_urb(hdev, urb); 2076 2077 case HCI_SCODATA_PKT: 2078 if (hci_conn_num(hdev, SCO_LINK) < 1) 2079 return -ENODEV; 2080 2081 urb = alloc_isoc_urb(hdev, skb); 2082 if (IS_ERR(urb)) 2083 return PTR_ERR(urb); 2084 2085 hdev->stat.sco_tx++; 2086 return submit_tx_urb(hdev, urb); 2087 } 2088 2089 return -EILSEQ; 2090 } 2091 2092 static bool btusb_setup_intel_new_get_fw_name(struct intel_version *ver, 2093 struct intel_boot_params *params, 2094 char *fw_name, size_t len, 2095 const char *suffix) 2096 { 2097 switch (ver->hw_variant) { 2098 case 0x0b: /* SfP */ 2099 case 0x0c: /* WsP */ 2100 snprintf(fw_name, len, "intel/ibt-%u-%u.%s", 2101 le16_to_cpu(ver->hw_variant), 2102 le16_to_cpu(params->dev_revid), 2103 suffix); 2104 break; 2105 case 0x11: /* JfP */ 2106 case 0x12: /* ThP */ 2107 case 0x13: /* HrP */ 2108 case 0x14: /* CcP */ 2109 snprintf(fw_name, len, "intel/ibt-%u-%u-%u.%s", 2110 le16_to_cpu(ver->hw_variant), 2111 le16_to_cpu(ver->hw_revision), 2112 le16_to_cpu(ver->fw_revision), 2113 suffix); 2114 break; 2115 default: 2116 return false; 2117 } 2118 return true; 2119 } 2120 2121 static int btusb_setup_intel_new(struct hci_dev *hdev) 2122 { 2123 struct btusb_data *data = hci_get_drvdata(hdev); 2124 struct intel_version ver; 2125 struct intel_boot_params params; 2126 const struct firmware *fw; 2127 u32 boot_param; 2128 char fwname[64]; 2129 ktime_t calltime, delta, rettime; 2130 unsigned long long duration; 2131 int err; 2132 2133 BT_DBG("%s", hdev->name); 2134 2135 /* Set the default boot parameter to 0x0 and it is updated to 2136 * SKU specific boot parameter after reading Intel_Write_Boot_Params 2137 * command while downloading the firmware. 2138 */ 2139 boot_param = 0x00000000; 2140 2141 calltime = ktime_get(); 2142 2143 /* Read the Intel version information to determine if the device 2144 * is in bootloader mode or if it already has operational firmware 2145 * loaded. 2146 */ 2147 err = btintel_read_version(hdev, &ver); 2148 if (err) 2149 return err; 2150 2151 /* The hardware platform number has a fixed value of 0x37 and 2152 * for now only accept this single value. 2153 */ 2154 if (ver.hw_platform != 0x37) { 2155 bt_dev_err(hdev, "Unsupported Intel hardware platform (%u)", 2156 ver.hw_platform); 2157 return -EINVAL; 2158 } 2159 2160 /* Check for supported iBT hardware variants of this firmware 2161 * loading method. 2162 * 2163 * This check has been put in place to ensure correct forward 2164 * compatibility options when newer hardware variants come along. 2165 */ 2166 switch (ver.hw_variant) { 2167 case 0x0b: /* SfP */ 2168 case 0x0c: /* WsP */ 2169 case 0x11: /* JfP */ 2170 case 0x12: /* ThP */ 2171 case 0x13: /* HrP */ 2172 case 0x14: /* CcP */ 2173 break; 2174 default: 2175 bt_dev_err(hdev, "Unsupported Intel hardware variant (%u)", 2176 ver.hw_variant); 2177 return -EINVAL; 2178 } 2179 2180 btintel_version_info(hdev, &ver); 2181 2182 /* The firmware variant determines if the device is in bootloader 2183 * mode or is running operational firmware. The value 0x06 identifies 2184 * the bootloader and the value 0x23 identifies the operational 2185 * firmware. 2186 * 2187 * When the operational firmware is already present, then only 2188 * the check for valid Bluetooth device address is needed. This 2189 * determines if the device will be added as configured or 2190 * unconfigured controller. 2191 * 2192 * It is not possible to use the Secure Boot Parameters in this 2193 * case since that command is only available in bootloader mode. 2194 */ 2195 if (ver.fw_variant == 0x23) { 2196 clear_bit(BTUSB_BOOTLOADER, &data->flags); 2197 btintel_check_bdaddr(hdev); 2198 return 0; 2199 } 2200 2201 /* If the device is not in bootloader mode, then the only possible 2202 * choice is to return an error and abort the device initialization. 2203 */ 2204 if (ver.fw_variant != 0x06) { 2205 bt_dev_err(hdev, "Unsupported Intel firmware variant (%u)", 2206 ver.fw_variant); 2207 return -ENODEV; 2208 } 2209 2210 /* Read the secure boot parameters to identify the operating 2211 * details of the bootloader. 2212 */ 2213 err = btintel_read_boot_params(hdev, ¶ms); 2214 if (err) 2215 return err; 2216 2217 /* It is required that every single firmware fragment is acknowledged 2218 * with a command complete event. If the boot parameters indicate 2219 * that this bootloader does not send them, then abort the setup. 2220 */ 2221 if (params.limited_cce != 0x00) { 2222 bt_dev_err(hdev, "Unsupported Intel firmware loading method (%u)", 2223 params.limited_cce); 2224 return -EINVAL; 2225 } 2226 2227 /* If the OTP has no valid Bluetooth device address, then there will 2228 * also be no valid address for the operational firmware. 2229 */ 2230 if (!bacmp(¶ms.otp_bdaddr, BDADDR_ANY)) { 2231 bt_dev_info(hdev, "No device address configured"); 2232 set_bit(HCI_QUIRK_INVALID_BDADDR, &hdev->quirks); 2233 } 2234 2235 /* With this Intel bootloader only the hardware variant and device 2236 * revision information are used to select the right firmware for SfP 2237 * and WsP. 2238 * 2239 * The firmware filename is ibt-<hw_variant>-<dev_revid>.sfi. 2240 * 2241 * Currently the supported hardware variants are: 2242 * 11 (0x0b) for iBT3.0 (LnP/SfP) 2243 * 12 (0x0c) for iBT3.5 (WsP) 2244 * 2245 * For ThP/JfP and for future SKU's, the FW name varies based on HW 2246 * variant, HW revision and FW revision, as these are dependent on CNVi 2247 * and RF Combination. 2248 * 2249 * 17 (0x11) for iBT3.5 (JfP) 2250 * 18 (0x12) for iBT3.5 (ThP) 2251 * 2252 * The firmware file name for these will be 2253 * ibt-<hw_variant>-<hw_revision>-<fw_revision>.sfi. 2254 * 2255 */ 2256 err = btusb_setup_intel_new_get_fw_name(&ver, ¶ms, fwname, 2257 sizeof(fwname), "sfi"); 2258 if (!err) { 2259 bt_dev_err(hdev, "Unsupported Intel firmware naming"); 2260 return -EINVAL; 2261 } 2262 2263 err = request_firmware(&fw, fwname, &hdev->dev); 2264 if (err < 0) { 2265 bt_dev_err(hdev, "Failed to load Intel firmware file (%d)", err); 2266 return err; 2267 } 2268 2269 bt_dev_info(hdev, "Found device firmware: %s", fwname); 2270 2271 /* Save the DDC file name for later use to apply once the firmware 2272 * downloading is done. 2273 */ 2274 err = btusb_setup_intel_new_get_fw_name(&ver, ¶ms, fwname, 2275 sizeof(fwname), "ddc"); 2276 if (!err) { 2277 bt_dev_err(hdev, "Unsupported Intel firmware naming"); 2278 return -EINVAL; 2279 } 2280 2281 if (fw->size < 644) { 2282 bt_dev_err(hdev, "Invalid size of firmware file (%zu)", 2283 fw->size); 2284 err = -EBADF; 2285 goto done; 2286 } 2287 2288 set_bit(BTUSB_DOWNLOADING, &data->flags); 2289 2290 /* Start firmware downloading and get boot parameter */ 2291 err = btintel_download_firmware(hdev, fw, &boot_param); 2292 if (err < 0) 2293 goto done; 2294 2295 set_bit(BTUSB_FIRMWARE_LOADED, &data->flags); 2296 2297 bt_dev_info(hdev, "Waiting for firmware download to complete"); 2298 2299 /* Before switching the device into operational mode and with that 2300 * booting the loaded firmware, wait for the bootloader notification 2301 * that all fragments have been successfully received. 2302 * 2303 * When the event processing receives the notification, then the 2304 * BTUSB_DOWNLOADING flag will be cleared. 2305 * 2306 * The firmware loading should not take longer than 5 seconds 2307 * and thus just timeout if that happens and fail the setup 2308 * of this device. 2309 */ 2310 err = wait_on_bit_timeout(&data->flags, BTUSB_DOWNLOADING, 2311 TASK_INTERRUPTIBLE, 2312 msecs_to_jiffies(5000)); 2313 if (err == -EINTR) { 2314 bt_dev_err(hdev, "Firmware loading interrupted"); 2315 goto done; 2316 } 2317 2318 if (err) { 2319 bt_dev_err(hdev, "Firmware loading timeout"); 2320 err = -ETIMEDOUT; 2321 goto done; 2322 } 2323 2324 if (test_bit(BTUSB_FIRMWARE_FAILED, &data->flags)) { 2325 bt_dev_err(hdev, "Firmware loading failed"); 2326 err = -ENOEXEC; 2327 goto done; 2328 } 2329 2330 rettime = ktime_get(); 2331 delta = ktime_sub(rettime, calltime); 2332 duration = (unsigned long long) ktime_to_ns(delta) >> 10; 2333 2334 bt_dev_info(hdev, "Firmware loaded in %llu usecs", duration); 2335 2336 done: 2337 release_firmware(fw); 2338 2339 if (err < 0) 2340 return err; 2341 2342 calltime = ktime_get(); 2343 2344 set_bit(BTUSB_BOOTING, &data->flags); 2345 2346 err = btintel_send_intel_reset(hdev, boot_param); 2347 if (err) 2348 return err; 2349 2350 /* The bootloader will not indicate when the device is ready. This 2351 * is done by the operational firmware sending bootup notification. 2352 * 2353 * Booting into operational firmware should not take longer than 2354 * 1 second. However if that happens, then just fail the setup 2355 * since something went wrong. 2356 */ 2357 bt_dev_info(hdev, "Waiting for device to boot"); 2358 2359 err = wait_on_bit_timeout(&data->flags, BTUSB_BOOTING, 2360 TASK_INTERRUPTIBLE, 2361 msecs_to_jiffies(1000)); 2362 2363 if (err == -EINTR) { 2364 bt_dev_err(hdev, "Device boot interrupted"); 2365 return -EINTR; 2366 } 2367 2368 if (err) { 2369 bt_dev_err(hdev, "Device boot timeout"); 2370 return -ETIMEDOUT; 2371 } 2372 2373 rettime = ktime_get(); 2374 delta = ktime_sub(rettime, calltime); 2375 duration = (unsigned long long) ktime_to_ns(delta) >> 10; 2376 2377 bt_dev_info(hdev, "Device booted in %llu usecs", duration); 2378 2379 clear_bit(BTUSB_BOOTLOADER, &data->flags); 2380 2381 /* Once the device is running in operational mode, it needs to apply 2382 * the device configuration (DDC) parameters. 2383 * 2384 * The device can work without DDC parameters, so even if it fails 2385 * to load the file, no need to fail the setup. 2386 */ 2387 btintel_load_ddc_config(hdev, fwname); 2388 2389 /* Set the event mask for Intel specific vendor events. This enables 2390 * a few extra events that are useful during general operation. It 2391 * does not enable any debugging related events. 2392 * 2393 * The device will function correctly without these events enabled 2394 * and thus no need to fail the setup. 2395 */ 2396 btintel_set_event_mask(hdev, false); 2397 2398 return 0; 2399 } 2400 2401 static int btusb_shutdown_intel(struct hci_dev *hdev) 2402 { 2403 struct sk_buff *skb; 2404 long ret; 2405 2406 /* In the shutdown sequence where Bluetooth is turned off followed 2407 * by WiFi being turned off, turning WiFi back on causes issue with 2408 * the RF calibration. 2409 * 2410 * To ensure that any RF activity has been stopped, issue HCI Reset 2411 * command to clear all ongoing activity including advertising, 2412 * scanning etc. 2413 */ 2414 skb = __hci_cmd_sync(hdev, HCI_OP_RESET, 0, NULL, HCI_INIT_TIMEOUT); 2415 if (IS_ERR(skb)) { 2416 ret = PTR_ERR(skb); 2417 bt_dev_err(hdev, "HCI reset during shutdown failed"); 2418 return ret; 2419 } 2420 kfree_skb(skb); 2421 2422 /* Some platforms have an issue with BT LED when the interface is 2423 * down or BT radio is turned off, which takes 5 seconds to BT LED 2424 * goes off. This command turns off the BT LED immediately. 2425 */ 2426 skb = __hci_cmd_sync(hdev, 0xfc3f, 0, NULL, HCI_INIT_TIMEOUT); 2427 if (IS_ERR(skb)) { 2428 ret = PTR_ERR(skb); 2429 bt_dev_err(hdev, "turning off Intel device LED failed"); 2430 return ret; 2431 } 2432 kfree_skb(skb); 2433 2434 return 0; 2435 } 2436 2437 static int btusb_shutdown_intel_new(struct hci_dev *hdev) 2438 { 2439 struct sk_buff *skb; 2440 2441 /* Send HCI Reset to the controller to stop any BT activity which 2442 * were triggered. This will help to save power and maintain the 2443 * sync b/w Host and controller 2444 */ 2445 skb = __hci_cmd_sync(hdev, HCI_OP_RESET, 0, NULL, HCI_INIT_TIMEOUT); 2446 if (IS_ERR(skb)) { 2447 bt_dev_err(hdev, "HCI reset during shutdown failed"); 2448 return PTR_ERR(skb); 2449 } 2450 kfree_skb(skb); 2451 2452 return 0; 2453 } 2454 2455 #ifdef CONFIG_PM 2456 /* Configure an out-of-band gpio as wake-up pin, if specified in device tree */ 2457 static int marvell_config_oob_wake(struct hci_dev *hdev) 2458 { 2459 struct sk_buff *skb; 2460 struct btusb_data *data = hci_get_drvdata(hdev); 2461 struct device *dev = &data->udev->dev; 2462 u16 pin, gap, opcode; 2463 int ret; 2464 u8 cmd[5]; 2465 2466 /* Move on if no wakeup pin specified */ 2467 if (of_property_read_u16(dev->of_node, "marvell,wakeup-pin", &pin) || 2468 of_property_read_u16(dev->of_node, "marvell,wakeup-gap-ms", &gap)) 2469 return 0; 2470 2471 /* Vendor specific command to configure a GPIO as wake-up pin */ 2472 opcode = hci_opcode_pack(0x3F, 0x59); 2473 cmd[0] = opcode & 0xFF; 2474 cmd[1] = opcode >> 8; 2475 cmd[2] = 2; /* length of parameters that follow */ 2476 cmd[3] = pin; 2477 cmd[4] = gap; /* time in ms, for which wakeup pin should be asserted */ 2478 2479 skb = bt_skb_alloc(sizeof(cmd), GFP_KERNEL); 2480 if (!skb) { 2481 bt_dev_err(hdev, "%s: No memory\n", __func__); 2482 return -ENOMEM; 2483 } 2484 2485 skb_put_data(skb, cmd, sizeof(cmd)); 2486 hci_skb_pkt_type(skb) = HCI_COMMAND_PKT; 2487 2488 ret = btusb_send_frame(hdev, skb); 2489 if (ret) { 2490 bt_dev_err(hdev, "%s: configuration failed\n", __func__); 2491 kfree_skb(skb); 2492 return ret; 2493 } 2494 2495 return 0; 2496 } 2497 #endif 2498 2499 static int btusb_set_bdaddr_marvell(struct hci_dev *hdev, 2500 const bdaddr_t *bdaddr) 2501 { 2502 struct sk_buff *skb; 2503 u8 buf[8]; 2504 long ret; 2505 2506 buf[0] = 0xfe; 2507 buf[1] = sizeof(bdaddr_t); 2508 memcpy(buf + 2, bdaddr, sizeof(bdaddr_t)); 2509 2510 skb = __hci_cmd_sync(hdev, 0xfc22, sizeof(buf), buf, HCI_INIT_TIMEOUT); 2511 if (IS_ERR(skb)) { 2512 ret = PTR_ERR(skb); 2513 bt_dev_err(hdev, "changing Marvell device address failed (%ld)", 2514 ret); 2515 return ret; 2516 } 2517 kfree_skb(skb); 2518 2519 return 0; 2520 } 2521 2522 static int btusb_set_bdaddr_ath3012(struct hci_dev *hdev, 2523 const bdaddr_t *bdaddr) 2524 { 2525 struct sk_buff *skb; 2526 u8 buf[10]; 2527 long ret; 2528 2529 buf[0] = 0x01; 2530 buf[1] = 0x01; 2531 buf[2] = 0x00; 2532 buf[3] = sizeof(bdaddr_t); 2533 memcpy(buf + 4, bdaddr, sizeof(bdaddr_t)); 2534 2535 skb = __hci_cmd_sync(hdev, 0xfc0b, sizeof(buf), buf, HCI_INIT_TIMEOUT); 2536 if (IS_ERR(skb)) { 2537 ret = PTR_ERR(skb); 2538 bt_dev_err(hdev, "Change address command failed (%ld)", ret); 2539 return ret; 2540 } 2541 kfree_skb(skb); 2542 2543 return 0; 2544 } 2545 2546 #define QCA_DFU_PACKET_LEN 4096 2547 2548 #define QCA_GET_TARGET_VERSION 0x09 2549 #define QCA_CHECK_STATUS 0x05 2550 #define QCA_DFU_DOWNLOAD 0x01 2551 2552 #define QCA_SYSCFG_UPDATED 0x40 2553 #define QCA_PATCH_UPDATED 0x80 2554 #define QCA_DFU_TIMEOUT 3000 2555 2556 struct qca_version { 2557 __le32 rom_version; 2558 __le32 patch_version; 2559 __le32 ram_version; 2560 __le32 ref_clock; 2561 __u8 reserved[4]; 2562 } __packed; 2563 2564 struct qca_rampatch_version { 2565 __le16 rom_version; 2566 __le16 patch_version; 2567 } __packed; 2568 2569 struct qca_device_info { 2570 u32 rom_version; 2571 u8 rampatch_hdr; /* length of header in rampatch */ 2572 u8 nvm_hdr; /* length of header in NVM */ 2573 u8 ver_offset; /* offset of version structure in rampatch */ 2574 }; 2575 2576 static const struct qca_device_info qca_devices_table[] = { 2577 { 0x00000100, 20, 4, 10 }, /* Rome 1.0 */ 2578 { 0x00000101, 20, 4, 10 }, /* Rome 1.1 */ 2579 { 0x00000200, 28, 4, 18 }, /* Rome 2.0 */ 2580 { 0x00000201, 28, 4, 18 }, /* Rome 2.1 */ 2581 { 0x00000300, 28, 4, 18 }, /* Rome 3.0 */ 2582 { 0x00000302, 28, 4, 18 }, /* Rome 3.2 */ 2583 }; 2584 2585 static int btusb_qca_send_vendor_req(struct usb_device *udev, u8 request, 2586 void *data, u16 size) 2587 { 2588 int pipe, err; 2589 u8 *buf; 2590 2591 buf = kmalloc(size, GFP_KERNEL); 2592 if (!buf) 2593 return -ENOMEM; 2594 2595 /* Found some of USB hosts have IOT issues with ours so that we should 2596 * not wait until HCI layer is ready. 2597 */ 2598 pipe = usb_rcvctrlpipe(udev, 0); 2599 err = usb_control_msg(udev, pipe, request, USB_TYPE_VENDOR | USB_DIR_IN, 2600 0, 0, buf, size, USB_CTRL_SET_TIMEOUT); 2601 if (err < 0) { 2602 dev_err(&udev->dev, "Failed to access otp area (%d)", err); 2603 goto done; 2604 } 2605 2606 memcpy(data, buf, size); 2607 2608 done: 2609 kfree(buf); 2610 2611 return err; 2612 } 2613 2614 static int btusb_setup_qca_download_fw(struct hci_dev *hdev, 2615 const struct firmware *firmware, 2616 size_t hdr_size) 2617 { 2618 struct btusb_data *btdata = hci_get_drvdata(hdev); 2619 struct usb_device *udev = btdata->udev; 2620 size_t count, size, sent = 0; 2621 int pipe, len, err; 2622 u8 *buf; 2623 2624 buf = kmalloc(QCA_DFU_PACKET_LEN, GFP_KERNEL); 2625 if (!buf) 2626 return -ENOMEM; 2627 2628 count = firmware->size; 2629 2630 size = min_t(size_t, count, hdr_size); 2631 memcpy(buf, firmware->data, size); 2632 2633 /* USB patches should go down to controller through USB path 2634 * because binary format fits to go down through USB channel. 2635 * USB control path is for patching headers and USB bulk is for 2636 * patch body. 2637 */ 2638 pipe = usb_sndctrlpipe(udev, 0); 2639 err = usb_control_msg(udev, pipe, QCA_DFU_DOWNLOAD, USB_TYPE_VENDOR, 2640 0, 0, buf, size, USB_CTRL_SET_TIMEOUT); 2641 if (err < 0) { 2642 bt_dev_err(hdev, "Failed to send headers (%d)", err); 2643 goto done; 2644 } 2645 2646 sent += size; 2647 count -= size; 2648 2649 while (count) { 2650 size = min_t(size_t, count, QCA_DFU_PACKET_LEN); 2651 2652 memcpy(buf, firmware->data + sent, size); 2653 2654 pipe = usb_sndbulkpipe(udev, 0x02); 2655 err = usb_bulk_msg(udev, pipe, buf, size, &len, 2656 QCA_DFU_TIMEOUT); 2657 if (err < 0) { 2658 bt_dev_err(hdev, "Failed to send body at %zd of %zd (%d)", 2659 sent, firmware->size, err); 2660 break; 2661 } 2662 2663 if (size != len) { 2664 bt_dev_err(hdev, "Failed to get bulk buffer"); 2665 err = -EILSEQ; 2666 break; 2667 } 2668 2669 sent += size; 2670 count -= size; 2671 } 2672 2673 done: 2674 kfree(buf); 2675 return err; 2676 } 2677 2678 static int btusb_setup_qca_load_rampatch(struct hci_dev *hdev, 2679 struct qca_version *ver, 2680 const struct qca_device_info *info) 2681 { 2682 struct qca_rampatch_version *rver; 2683 const struct firmware *fw; 2684 u32 ver_rom, ver_patch; 2685 u16 rver_rom, rver_patch; 2686 char fwname[64]; 2687 int err; 2688 2689 ver_rom = le32_to_cpu(ver->rom_version); 2690 ver_patch = le32_to_cpu(ver->patch_version); 2691 2692 snprintf(fwname, sizeof(fwname), "qca/rampatch_usb_%08x.bin", ver_rom); 2693 2694 err = request_firmware(&fw, fwname, &hdev->dev); 2695 if (err) { 2696 bt_dev_err(hdev, "failed to request rampatch file: %s (%d)", 2697 fwname, err); 2698 return err; 2699 } 2700 2701 bt_dev_info(hdev, "using rampatch file: %s", fwname); 2702 2703 rver = (struct qca_rampatch_version *)(fw->data + info->ver_offset); 2704 rver_rom = le16_to_cpu(rver->rom_version); 2705 rver_patch = le16_to_cpu(rver->patch_version); 2706 2707 bt_dev_info(hdev, "QCA: patch rome 0x%x build 0x%x, " 2708 "firmware rome 0x%x build 0x%x", 2709 rver_rom, rver_patch, ver_rom, ver_patch); 2710 2711 if (rver_rom != ver_rom || rver_patch <= ver_patch) { 2712 bt_dev_err(hdev, "rampatch file version did not match with firmware"); 2713 err = -EINVAL; 2714 goto done; 2715 } 2716 2717 err = btusb_setup_qca_download_fw(hdev, fw, info->rampatch_hdr); 2718 2719 done: 2720 release_firmware(fw); 2721 2722 return err; 2723 } 2724 2725 static int btusb_setup_qca_load_nvm(struct hci_dev *hdev, 2726 struct qca_version *ver, 2727 const struct qca_device_info *info) 2728 { 2729 const struct firmware *fw; 2730 char fwname[64]; 2731 int err; 2732 2733 snprintf(fwname, sizeof(fwname), "qca/nvm_usb_%08x.bin", 2734 le32_to_cpu(ver->rom_version)); 2735 2736 err = request_firmware(&fw, fwname, &hdev->dev); 2737 if (err) { 2738 bt_dev_err(hdev, "failed to request NVM file: %s (%d)", 2739 fwname, err); 2740 return err; 2741 } 2742 2743 bt_dev_info(hdev, "using NVM file: %s", fwname); 2744 2745 err = btusb_setup_qca_download_fw(hdev, fw, info->nvm_hdr); 2746 2747 release_firmware(fw); 2748 2749 return err; 2750 } 2751 2752 /* identify the ROM version and check whether patches are needed */ 2753 static bool btusb_qca_need_patch(struct usb_device *udev) 2754 { 2755 struct qca_version ver; 2756 2757 if (btusb_qca_send_vendor_req(udev, QCA_GET_TARGET_VERSION, &ver, 2758 sizeof(ver)) < 0) 2759 return false; 2760 /* only low ROM versions need patches */ 2761 return !(le32_to_cpu(ver.rom_version) & ~0xffffU); 2762 } 2763 2764 static int btusb_setup_qca(struct hci_dev *hdev) 2765 { 2766 struct btusb_data *btdata = hci_get_drvdata(hdev); 2767 struct usb_device *udev = btdata->udev; 2768 const struct qca_device_info *info = NULL; 2769 struct qca_version ver; 2770 u32 ver_rom; 2771 u8 status; 2772 int i, err; 2773 2774 err = btusb_qca_send_vendor_req(udev, QCA_GET_TARGET_VERSION, &ver, 2775 sizeof(ver)); 2776 if (err < 0) 2777 return err; 2778 2779 ver_rom = le32_to_cpu(ver.rom_version); 2780 /* Don't care about high ROM versions */ 2781 if (ver_rom & ~0xffffU) 2782 return 0; 2783 2784 for (i = 0; i < ARRAY_SIZE(qca_devices_table); i++) { 2785 if (ver_rom == qca_devices_table[i].rom_version) 2786 info = &qca_devices_table[i]; 2787 } 2788 if (!info) { 2789 bt_dev_err(hdev, "don't support firmware rome 0x%x", ver_rom); 2790 return -ENODEV; 2791 } 2792 2793 err = btusb_qca_send_vendor_req(udev, QCA_CHECK_STATUS, &status, 2794 sizeof(status)); 2795 if (err < 0) 2796 return err; 2797 2798 if (!(status & QCA_PATCH_UPDATED)) { 2799 err = btusb_setup_qca_load_rampatch(hdev, &ver, info); 2800 if (err < 0) 2801 return err; 2802 } 2803 2804 if (!(status & QCA_SYSCFG_UPDATED)) { 2805 err = btusb_setup_qca_load_nvm(hdev, &ver, info); 2806 if (err < 0) 2807 return err; 2808 } 2809 2810 return 0; 2811 } 2812 2813 #ifdef CONFIG_BT_HCIBTUSB_BCM 2814 static inline int __set_diag_interface(struct hci_dev *hdev) 2815 { 2816 struct btusb_data *data = hci_get_drvdata(hdev); 2817 struct usb_interface *intf = data->diag; 2818 int i; 2819 2820 if (!data->diag) 2821 return -ENODEV; 2822 2823 data->diag_tx_ep = NULL; 2824 data->diag_rx_ep = NULL; 2825 2826 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) { 2827 struct usb_endpoint_descriptor *ep_desc; 2828 2829 ep_desc = &intf->cur_altsetting->endpoint[i].desc; 2830 2831 if (!data->diag_tx_ep && usb_endpoint_is_bulk_out(ep_desc)) { 2832 data->diag_tx_ep = ep_desc; 2833 continue; 2834 } 2835 2836 if (!data->diag_rx_ep && usb_endpoint_is_bulk_in(ep_desc)) { 2837 data->diag_rx_ep = ep_desc; 2838 continue; 2839 } 2840 } 2841 2842 if (!data->diag_tx_ep || !data->diag_rx_ep) { 2843 bt_dev_err(hdev, "invalid diagnostic descriptors"); 2844 return -ENODEV; 2845 } 2846 2847 return 0; 2848 } 2849 2850 static struct urb *alloc_diag_urb(struct hci_dev *hdev, bool enable) 2851 { 2852 struct btusb_data *data = hci_get_drvdata(hdev); 2853 struct sk_buff *skb; 2854 struct urb *urb; 2855 unsigned int pipe; 2856 2857 if (!data->diag_tx_ep) 2858 return ERR_PTR(-ENODEV); 2859 2860 urb = usb_alloc_urb(0, GFP_KERNEL); 2861 if (!urb) 2862 return ERR_PTR(-ENOMEM); 2863 2864 skb = bt_skb_alloc(2, GFP_KERNEL); 2865 if (!skb) { 2866 usb_free_urb(urb); 2867 return ERR_PTR(-ENOMEM); 2868 } 2869 2870 skb_put_u8(skb, 0xf0); 2871 skb_put_u8(skb, enable); 2872 2873 pipe = usb_sndbulkpipe(data->udev, data->diag_tx_ep->bEndpointAddress); 2874 2875 usb_fill_bulk_urb(urb, data->udev, pipe, 2876 skb->data, skb->len, btusb_tx_complete, skb); 2877 2878 skb->dev = (void *)hdev; 2879 2880 return urb; 2881 } 2882 2883 static int btusb_bcm_set_diag(struct hci_dev *hdev, bool enable) 2884 { 2885 struct btusb_data *data = hci_get_drvdata(hdev); 2886 struct urb *urb; 2887 2888 if (!data->diag) 2889 return -ENODEV; 2890 2891 if (!test_bit(HCI_RUNNING, &hdev->flags)) 2892 return -ENETDOWN; 2893 2894 urb = alloc_diag_urb(hdev, enable); 2895 if (IS_ERR(urb)) 2896 return PTR_ERR(urb); 2897 2898 return submit_or_queue_tx_urb(hdev, urb); 2899 } 2900 #endif 2901 2902 #ifdef CONFIG_PM 2903 static irqreturn_t btusb_oob_wake_handler(int irq, void *priv) 2904 { 2905 struct btusb_data *data = priv; 2906 2907 pm_wakeup_event(&data->udev->dev, 0); 2908 pm_system_wakeup(); 2909 2910 /* Disable only if not already disabled (keep it balanced) */ 2911 if (test_and_clear_bit(BTUSB_OOB_WAKE_ENABLED, &data->flags)) { 2912 disable_irq_nosync(irq); 2913 disable_irq_wake(irq); 2914 } 2915 return IRQ_HANDLED; 2916 } 2917 2918 static const struct of_device_id btusb_match_table[] = { 2919 { .compatible = "usb1286,204e" }, 2920 { .compatible = "usbcf3,e300" }, /* QCA6174A */ 2921 { .compatible = "usb4ca,301a" }, /* QCA6174A (Lite-On) */ 2922 { } 2923 }; 2924 MODULE_DEVICE_TABLE(of, btusb_match_table); 2925 2926 /* Use an oob wakeup pin? */ 2927 static int btusb_config_oob_wake(struct hci_dev *hdev) 2928 { 2929 struct btusb_data *data = hci_get_drvdata(hdev); 2930 struct device *dev = &data->udev->dev; 2931 int irq, ret; 2932 2933 clear_bit(BTUSB_OOB_WAKE_ENABLED, &data->flags); 2934 2935 if (!of_match_device(btusb_match_table, dev)) 2936 return 0; 2937 2938 /* Move on if no IRQ specified */ 2939 irq = of_irq_get_byname(dev->of_node, "wakeup"); 2940 if (irq <= 0) { 2941 bt_dev_dbg(hdev, "%s: no OOB Wakeup IRQ in DT", __func__); 2942 return 0; 2943 } 2944 2945 ret = devm_request_irq(&hdev->dev, irq, btusb_oob_wake_handler, 2946 0, "OOB Wake-on-BT", data); 2947 if (ret) { 2948 bt_dev_err(hdev, "%s: IRQ request failed", __func__); 2949 return ret; 2950 } 2951 2952 ret = device_init_wakeup(dev, true); 2953 if (ret) { 2954 bt_dev_err(hdev, "%s: failed to init_wakeup", __func__); 2955 return ret; 2956 } 2957 2958 data->oob_wake_irq = irq; 2959 disable_irq(irq); 2960 bt_dev_info(hdev, "OOB Wake-on-BT configured at IRQ %u", irq); 2961 return 0; 2962 } 2963 #endif 2964 2965 static void btusb_check_needs_reset_resume(struct usb_interface *intf) 2966 { 2967 if (dmi_check_system(btusb_needs_reset_resume_table)) 2968 interface_to_usbdev(intf)->quirks |= USB_QUIRK_RESET_RESUME; 2969 } 2970 2971 static int btusb_probe(struct usb_interface *intf, 2972 const struct usb_device_id *id) 2973 { 2974 struct usb_endpoint_descriptor *ep_desc; 2975 struct gpio_desc *reset_gpio; 2976 struct btusb_data *data; 2977 struct hci_dev *hdev; 2978 unsigned ifnum_base; 2979 int i, err; 2980 2981 BT_DBG("intf %p id %p", intf, id); 2982 2983 /* interface numbers are hardcoded in the spec */ 2984 if (intf->cur_altsetting->desc.bInterfaceNumber != 0) { 2985 if (!(id->driver_info & BTUSB_IFNUM_2)) 2986 return -ENODEV; 2987 if (intf->cur_altsetting->desc.bInterfaceNumber != 2) 2988 return -ENODEV; 2989 } 2990 2991 ifnum_base = intf->cur_altsetting->desc.bInterfaceNumber; 2992 2993 if (!id->driver_info) { 2994 const struct usb_device_id *match; 2995 2996 match = usb_match_id(intf, blacklist_table); 2997 if (match) 2998 id = match; 2999 } 3000 3001 if (id->driver_info == BTUSB_IGNORE) 3002 return -ENODEV; 3003 3004 if (id->driver_info & BTUSB_ATH3012) { 3005 struct usb_device *udev = interface_to_usbdev(intf); 3006 3007 /* Old firmware would otherwise let ath3k driver load 3008 * patch and sysconfig files 3009 */ 3010 if (le16_to_cpu(udev->descriptor.bcdDevice) <= 0x0001 && 3011 !btusb_qca_need_patch(udev)) 3012 return -ENODEV; 3013 } 3014 3015 data = devm_kzalloc(&intf->dev, sizeof(*data), GFP_KERNEL); 3016 if (!data) 3017 return -ENOMEM; 3018 3019 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) { 3020 ep_desc = &intf->cur_altsetting->endpoint[i].desc; 3021 3022 if (!data->intr_ep && usb_endpoint_is_int_in(ep_desc)) { 3023 data->intr_ep = ep_desc; 3024 continue; 3025 } 3026 3027 if (!data->bulk_tx_ep && usb_endpoint_is_bulk_out(ep_desc)) { 3028 data->bulk_tx_ep = ep_desc; 3029 continue; 3030 } 3031 3032 if (!data->bulk_rx_ep && usb_endpoint_is_bulk_in(ep_desc)) { 3033 data->bulk_rx_ep = ep_desc; 3034 continue; 3035 } 3036 } 3037 3038 if (!data->intr_ep || !data->bulk_tx_ep || !data->bulk_rx_ep) 3039 return -ENODEV; 3040 3041 if (id->driver_info & BTUSB_AMP) { 3042 data->cmdreq_type = USB_TYPE_CLASS | 0x01; 3043 data->cmdreq = 0x2b; 3044 } else { 3045 data->cmdreq_type = USB_TYPE_CLASS; 3046 data->cmdreq = 0x00; 3047 } 3048 3049 data->udev = interface_to_usbdev(intf); 3050 data->intf = intf; 3051 3052 INIT_WORK(&data->work, btusb_work); 3053 INIT_WORK(&data->waker, btusb_waker); 3054 init_usb_anchor(&data->deferred); 3055 init_usb_anchor(&data->tx_anchor); 3056 spin_lock_init(&data->txlock); 3057 3058 init_usb_anchor(&data->intr_anchor); 3059 init_usb_anchor(&data->bulk_anchor); 3060 init_usb_anchor(&data->isoc_anchor); 3061 init_usb_anchor(&data->diag_anchor); 3062 spin_lock_init(&data->rxlock); 3063 3064 if (id->driver_info & BTUSB_INTEL_NEW) { 3065 data->recv_event = btusb_recv_event_intel; 3066 data->recv_bulk = btusb_recv_bulk_intel; 3067 set_bit(BTUSB_BOOTLOADER, &data->flags); 3068 } else { 3069 data->recv_event = hci_recv_frame; 3070 data->recv_bulk = btusb_recv_bulk; 3071 } 3072 3073 hdev = hci_alloc_dev(); 3074 if (!hdev) 3075 return -ENOMEM; 3076 3077 hdev->bus = HCI_USB; 3078 hci_set_drvdata(hdev, data); 3079 3080 if (id->driver_info & BTUSB_AMP) 3081 hdev->dev_type = HCI_AMP; 3082 else 3083 hdev->dev_type = HCI_PRIMARY; 3084 3085 data->hdev = hdev; 3086 3087 SET_HCIDEV_DEV(hdev, &intf->dev); 3088 3089 reset_gpio = gpiod_get_optional(&data->udev->dev, "reset", 3090 GPIOD_OUT_LOW); 3091 if (IS_ERR(reset_gpio)) { 3092 err = PTR_ERR(reset_gpio); 3093 goto out_free_dev; 3094 } else if (reset_gpio) { 3095 data->reset_gpio = reset_gpio; 3096 } 3097 3098 hdev->open = btusb_open; 3099 hdev->close = btusb_close; 3100 hdev->flush = btusb_flush; 3101 hdev->send = btusb_send_frame; 3102 hdev->notify = btusb_notify; 3103 3104 #ifdef CONFIG_PM 3105 err = btusb_config_oob_wake(hdev); 3106 if (err) 3107 goto out_free_dev; 3108 3109 /* Marvell devices may need a specific chip configuration */ 3110 if (id->driver_info & BTUSB_MARVELL && data->oob_wake_irq) { 3111 err = marvell_config_oob_wake(hdev); 3112 if (err) 3113 goto out_free_dev; 3114 } 3115 #endif 3116 if (id->driver_info & BTUSB_CW6622) 3117 set_bit(HCI_QUIRK_BROKEN_STORED_LINK_KEY, &hdev->quirks); 3118 3119 if (id->driver_info & BTUSB_BCM2045) 3120 set_bit(HCI_QUIRK_BROKEN_STORED_LINK_KEY, &hdev->quirks); 3121 3122 if (id->driver_info & BTUSB_BCM92035) 3123 hdev->setup = btusb_setup_bcm92035; 3124 3125 #ifdef CONFIG_BT_HCIBTUSB_BCM 3126 if (id->driver_info & BTUSB_BCM_PATCHRAM) { 3127 hdev->manufacturer = 15; 3128 hdev->setup = btbcm_setup_patchram; 3129 hdev->set_diag = btusb_bcm_set_diag; 3130 hdev->set_bdaddr = btbcm_set_bdaddr; 3131 3132 /* Broadcom LM_DIAG Interface numbers are hardcoded */ 3133 data->diag = usb_ifnum_to_if(data->udev, ifnum_base + 2); 3134 } 3135 3136 if (id->driver_info & BTUSB_BCM_APPLE) { 3137 hdev->manufacturer = 15; 3138 hdev->setup = btbcm_setup_apple; 3139 hdev->set_diag = btusb_bcm_set_diag; 3140 3141 /* Broadcom LM_DIAG Interface numbers are hardcoded */ 3142 data->diag = usb_ifnum_to_if(data->udev, ifnum_base + 2); 3143 } 3144 #endif 3145 3146 if (id->driver_info & BTUSB_INTEL) { 3147 hdev->manufacturer = 2; 3148 hdev->setup = btusb_setup_intel; 3149 hdev->shutdown = btusb_shutdown_intel; 3150 hdev->set_diag = btintel_set_diag_mfg; 3151 hdev->set_bdaddr = btintel_set_bdaddr; 3152 hdev->cmd_timeout = btusb_intel_cmd_timeout; 3153 set_bit(HCI_QUIRK_STRICT_DUPLICATE_FILTER, &hdev->quirks); 3154 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks); 3155 set_bit(HCI_QUIRK_NON_PERSISTENT_DIAG, &hdev->quirks); 3156 } 3157 3158 if (id->driver_info & BTUSB_INTEL_NEW) { 3159 hdev->manufacturer = 2; 3160 hdev->send = btusb_send_frame_intel; 3161 hdev->setup = btusb_setup_intel_new; 3162 hdev->shutdown = btusb_shutdown_intel_new; 3163 hdev->hw_error = btintel_hw_error; 3164 hdev->set_diag = btintel_set_diag; 3165 hdev->set_bdaddr = btintel_set_bdaddr; 3166 hdev->cmd_timeout = btusb_intel_cmd_timeout; 3167 set_bit(HCI_QUIRK_STRICT_DUPLICATE_FILTER, &hdev->quirks); 3168 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks); 3169 set_bit(HCI_QUIRK_NON_PERSISTENT_DIAG, &hdev->quirks); 3170 } 3171 3172 if (id->driver_info & BTUSB_MARVELL) 3173 hdev->set_bdaddr = btusb_set_bdaddr_marvell; 3174 3175 if (id->driver_info & BTUSB_SWAVE) { 3176 set_bit(HCI_QUIRK_FIXUP_INQUIRY_MODE, &hdev->quirks); 3177 set_bit(HCI_QUIRK_BROKEN_LOCAL_COMMANDS, &hdev->quirks); 3178 } 3179 3180 if (id->driver_info & BTUSB_INTEL_BOOT) { 3181 hdev->manufacturer = 2; 3182 set_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks); 3183 } 3184 3185 if (id->driver_info & BTUSB_ATH3012) { 3186 data->setup_on_usb = btusb_setup_qca; 3187 hdev->set_bdaddr = btusb_set_bdaddr_ath3012; 3188 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks); 3189 set_bit(HCI_QUIRK_STRICT_DUPLICATE_FILTER, &hdev->quirks); 3190 } 3191 3192 if (id->driver_info & BTUSB_QCA_ROME) { 3193 data->setup_on_usb = btusb_setup_qca; 3194 hdev->set_bdaddr = btusb_set_bdaddr_ath3012; 3195 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks); 3196 btusb_check_needs_reset_resume(intf); 3197 } 3198 3199 #ifdef CONFIG_BT_HCIBTUSB_RTL 3200 if (id->driver_info & BTUSB_REALTEK) { 3201 hdev->setup = btrtl_setup_realtek; 3202 3203 /* Realtek devices lose their updated firmware over suspend, 3204 * but the USB hub doesn't notice any status change. 3205 * Explicitly request a device reset on resume. 3206 */ 3207 interface_to_usbdev(intf)->quirks |= USB_QUIRK_RESET_RESUME; 3208 } 3209 #endif 3210 3211 if (id->driver_info & BTUSB_AMP) { 3212 /* AMP controllers do not support SCO packets */ 3213 data->isoc = NULL; 3214 } else { 3215 /* Interface orders are hardcoded in the specification */ 3216 data->isoc = usb_ifnum_to_if(data->udev, ifnum_base + 1); 3217 data->isoc_ifnum = ifnum_base + 1; 3218 } 3219 3220 if (!reset) 3221 set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks); 3222 3223 if (force_scofix || id->driver_info & BTUSB_WRONG_SCO_MTU) { 3224 if (!disable_scofix) 3225 set_bit(HCI_QUIRK_FIXUP_BUFFER_SIZE, &hdev->quirks); 3226 } 3227 3228 if (id->driver_info & BTUSB_BROKEN_ISOC) 3229 data->isoc = NULL; 3230 3231 if (id->driver_info & BTUSB_DIGIANSWER) { 3232 data->cmdreq_type = USB_TYPE_VENDOR; 3233 set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks); 3234 } 3235 3236 if (id->driver_info & BTUSB_CSR) { 3237 struct usb_device *udev = data->udev; 3238 u16 bcdDevice = le16_to_cpu(udev->descriptor.bcdDevice); 3239 3240 /* Old firmware would otherwise execute USB reset */ 3241 if (bcdDevice < 0x117) 3242 set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks); 3243 3244 /* Fake CSR devices with broken commands */ 3245 if (bcdDevice <= 0x100 || bcdDevice == 0x134) 3246 hdev->setup = btusb_setup_csr; 3247 3248 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks); 3249 } 3250 3251 if (id->driver_info & BTUSB_SNIFFER) { 3252 struct usb_device *udev = data->udev; 3253 3254 /* New sniffer firmware has crippled HCI interface */ 3255 if (le16_to_cpu(udev->descriptor.bcdDevice) > 0x997) 3256 set_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks); 3257 } 3258 3259 if (id->driver_info & BTUSB_INTEL_BOOT) { 3260 /* A bug in the bootloader causes that interrupt interface is 3261 * only enabled after receiving SetInterface(0, AltSetting=0). 3262 */ 3263 err = usb_set_interface(data->udev, 0, 0); 3264 if (err < 0) { 3265 BT_ERR("failed to set interface 0, alt 0 %d", err); 3266 goto out_free_dev; 3267 } 3268 } 3269 3270 if (data->isoc) { 3271 err = usb_driver_claim_interface(&btusb_driver, 3272 data->isoc, data); 3273 if (err < 0) 3274 goto out_free_dev; 3275 } 3276 3277 #ifdef CONFIG_BT_HCIBTUSB_BCM 3278 if (data->diag) { 3279 if (!usb_driver_claim_interface(&btusb_driver, 3280 data->diag, data)) 3281 __set_diag_interface(hdev); 3282 else 3283 data->diag = NULL; 3284 } 3285 #endif 3286 3287 if (enable_autosuspend) 3288 usb_enable_autosuspend(data->udev); 3289 3290 err = hci_register_dev(hdev); 3291 if (err < 0) 3292 goto out_free_dev; 3293 3294 usb_set_intfdata(intf, data); 3295 3296 return 0; 3297 3298 out_free_dev: 3299 if (data->reset_gpio) 3300 gpiod_put(data->reset_gpio); 3301 hci_free_dev(hdev); 3302 return err; 3303 } 3304 3305 static void btusb_disconnect(struct usb_interface *intf) 3306 { 3307 struct btusb_data *data = usb_get_intfdata(intf); 3308 struct hci_dev *hdev; 3309 3310 BT_DBG("intf %p", intf); 3311 3312 if (!data) 3313 return; 3314 3315 hdev = data->hdev; 3316 usb_set_intfdata(data->intf, NULL); 3317 3318 if (data->isoc) 3319 usb_set_intfdata(data->isoc, NULL); 3320 3321 if (data->diag) 3322 usb_set_intfdata(data->diag, NULL); 3323 3324 hci_unregister_dev(hdev); 3325 3326 if (intf == data->intf) { 3327 if (data->isoc) 3328 usb_driver_release_interface(&btusb_driver, data->isoc); 3329 if (data->diag) 3330 usb_driver_release_interface(&btusb_driver, data->diag); 3331 } else if (intf == data->isoc) { 3332 if (data->diag) 3333 usb_driver_release_interface(&btusb_driver, data->diag); 3334 usb_driver_release_interface(&btusb_driver, data->intf); 3335 } else if (intf == data->diag) { 3336 usb_driver_release_interface(&btusb_driver, data->intf); 3337 if (data->isoc) 3338 usb_driver_release_interface(&btusb_driver, data->isoc); 3339 } 3340 3341 if (data->oob_wake_irq) 3342 device_init_wakeup(&data->udev->dev, false); 3343 3344 if (data->reset_gpio) 3345 gpiod_put(data->reset_gpio); 3346 3347 hci_free_dev(hdev); 3348 } 3349 3350 #ifdef CONFIG_PM 3351 static int btusb_suspend(struct usb_interface *intf, pm_message_t message) 3352 { 3353 struct btusb_data *data = usb_get_intfdata(intf); 3354 3355 BT_DBG("intf %p", intf); 3356 3357 if (data->suspend_count++) 3358 return 0; 3359 3360 spin_lock_irq(&data->txlock); 3361 if (!(PMSG_IS_AUTO(message) && data->tx_in_flight)) { 3362 set_bit(BTUSB_SUSPENDING, &data->flags); 3363 spin_unlock_irq(&data->txlock); 3364 } else { 3365 spin_unlock_irq(&data->txlock); 3366 data->suspend_count--; 3367 return -EBUSY; 3368 } 3369 3370 cancel_work_sync(&data->work); 3371 3372 btusb_stop_traffic(data); 3373 usb_kill_anchored_urbs(&data->tx_anchor); 3374 3375 if (data->oob_wake_irq && device_may_wakeup(&data->udev->dev)) { 3376 set_bit(BTUSB_OOB_WAKE_ENABLED, &data->flags); 3377 enable_irq_wake(data->oob_wake_irq); 3378 enable_irq(data->oob_wake_irq); 3379 } 3380 3381 return 0; 3382 } 3383 3384 static void play_deferred(struct btusb_data *data) 3385 { 3386 struct urb *urb; 3387 int err; 3388 3389 while ((urb = usb_get_from_anchor(&data->deferred))) { 3390 usb_anchor_urb(urb, &data->tx_anchor); 3391 3392 err = usb_submit_urb(urb, GFP_ATOMIC); 3393 if (err < 0) { 3394 if (err != -EPERM && err != -ENODEV) 3395 BT_ERR("%s urb %p submission failed (%d)", 3396 data->hdev->name, urb, -err); 3397 kfree(urb->setup_packet); 3398 usb_unanchor_urb(urb); 3399 usb_free_urb(urb); 3400 break; 3401 } 3402 3403 data->tx_in_flight++; 3404 usb_free_urb(urb); 3405 } 3406 3407 /* Cleanup the rest deferred urbs. */ 3408 while ((urb = usb_get_from_anchor(&data->deferred))) { 3409 kfree(urb->setup_packet); 3410 usb_free_urb(urb); 3411 } 3412 } 3413 3414 static int btusb_resume(struct usb_interface *intf) 3415 { 3416 struct btusb_data *data = usb_get_intfdata(intf); 3417 struct hci_dev *hdev = data->hdev; 3418 int err = 0; 3419 3420 BT_DBG("intf %p", intf); 3421 3422 if (--data->suspend_count) 3423 return 0; 3424 3425 /* Disable only if not already disabled (keep it balanced) */ 3426 if (test_and_clear_bit(BTUSB_OOB_WAKE_ENABLED, &data->flags)) { 3427 disable_irq(data->oob_wake_irq); 3428 disable_irq_wake(data->oob_wake_irq); 3429 } 3430 3431 if (!test_bit(HCI_RUNNING, &hdev->flags)) 3432 goto done; 3433 3434 if (test_bit(BTUSB_INTR_RUNNING, &data->flags)) { 3435 err = btusb_submit_intr_urb(hdev, GFP_NOIO); 3436 if (err < 0) { 3437 clear_bit(BTUSB_INTR_RUNNING, &data->flags); 3438 goto failed; 3439 } 3440 } 3441 3442 if (test_bit(BTUSB_BULK_RUNNING, &data->flags)) { 3443 err = btusb_submit_bulk_urb(hdev, GFP_NOIO); 3444 if (err < 0) { 3445 clear_bit(BTUSB_BULK_RUNNING, &data->flags); 3446 goto failed; 3447 } 3448 3449 btusb_submit_bulk_urb(hdev, GFP_NOIO); 3450 } 3451 3452 if (test_bit(BTUSB_ISOC_RUNNING, &data->flags)) { 3453 if (btusb_submit_isoc_urb(hdev, GFP_NOIO) < 0) 3454 clear_bit(BTUSB_ISOC_RUNNING, &data->flags); 3455 else 3456 btusb_submit_isoc_urb(hdev, GFP_NOIO); 3457 } 3458 3459 spin_lock_irq(&data->txlock); 3460 play_deferred(data); 3461 clear_bit(BTUSB_SUSPENDING, &data->flags); 3462 spin_unlock_irq(&data->txlock); 3463 schedule_work(&data->work); 3464 3465 return 0; 3466 3467 failed: 3468 usb_scuttle_anchored_urbs(&data->deferred); 3469 done: 3470 spin_lock_irq(&data->txlock); 3471 clear_bit(BTUSB_SUSPENDING, &data->flags); 3472 spin_unlock_irq(&data->txlock); 3473 3474 return err; 3475 } 3476 #endif 3477 3478 static struct usb_driver btusb_driver = { 3479 .name = "btusb", 3480 .probe = btusb_probe, 3481 .disconnect = btusb_disconnect, 3482 #ifdef CONFIG_PM 3483 .suspend = btusb_suspend, 3484 .resume = btusb_resume, 3485 #endif 3486 .id_table = btusb_table, 3487 .supports_autosuspend = 1, 3488 .disable_hub_initiated_lpm = 1, 3489 }; 3490 3491 module_usb_driver(btusb_driver); 3492 3493 module_param(disable_scofix, bool, 0644); 3494 MODULE_PARM_DESC(disable_scofix, "Disable fixup of wrong SCO buffer size"); 3495 3496 module_param(force_scofix, bool, 0644); 3497 MODULE_PARM_DESC(force_scofix, "Force fixup of wrong SCO buffers size"); 3498 3499 module_param(enable_autosuspend, bool, 0644); 3500 MODULE_PARM_DESC(enable_autosuspend, "Enable USB autosuspend by default"); 3501 3502 module_param(reset, bool, 0644); 3503 MODULE_PARM_DESC(reset, "Send HCI reset command on initialization"); 3504 3505 MODULE_AUTHOR("Marcel Holtmann <marcel@holtmann.org>"); 3506 MODULE_DESCRIPTION("Generic Bluetooth USB driver ver " VERSION); 3507 MODULE_VERSION(VERSION); 3508 MODULE_LICENSE("GPL"); 3509