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