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 static const u8 reset_param[] = { 0x00, 0x01, 0x00, 0x01, 2013 0x00, 0x08, 0x04, 0x00 }; 2014 struct btusb_data *data = hci_get_drvdata(hdev); 2015 struct sk_buff *skb; 2016 struct intel_version ver; 2017 struct intel_boot_params *params; 2018 const struct firmware *fw; 2019 const u8 *fw_ptr; 2020 u32 frag_len; 2021 char fwname[64]; 2022 ktime_t calltime, delta, rettime; 2023 unsigned long long duration; 2024 int err; 2025 2026 BT_DBG("%s", hdev->name); 2027 2028 calltime = ktime_get(); 2029 2030 /* Read the Intel version information to determine if the device 2031 * is in bootloader mode or if it already has operational firmware 2032 * loaded. 2033 */ 2034 err = btintel_read_version(hdev, &ver); 2035 if (err) 2036 return err; 2037 2038 /* The hardware platform number has a fixed value of 0x37 and 2039 * for now only accept this single value. 2040 */ 2041 if (ver.hw_platform != 0x37) { 2042 BT_ERR("%s: Unsupported Intel hardware platform (%u)", 2043 hdev->name, ver.hw_platform); 2044 return -EINVAL; 2045 } 2046 2047 /* Check for supported iBT hardware variants of this firmware 2048 * loading method. 2049 * 2050 * This check has been put in place to ensure correct forward 2051 * compatibility options when newer hardware variants come along. 2052 */ 2053 switch (ver.hw_variant) { 2054 case 0x0b: /* SfP */ 2055 case 0x0c: /* WsP */ 2056 case 0x11: /* JfP */ 2057 case 0x12: /* ThP */ 2058 break; 2059 default: 2060 BT_ERR("%s: Unsupported Intel hardware variant (%u)", 2061 hdev->name, ver.hw_variant); 2062 return -EINVAL; 2063 } 2064 2065 btintel_version_info(hdev, &ver); 2066 2067 /* The firmware variant determines if the device is in bootloader 2068 * mode or is running operational firmware. The value 0x06 identifies 2069 * the bootloader and the value 0x23 identifies the operational 2070 * firmware. 2071 * 2072 * When the operational firmware is already present, then only 2073 * the check for valid Bluetooth device address is needed. This 2074 * determines if the device will be added as configured or 2075 * unconfigured controller. 2076 * 2077 * It is not possible to use the Secure Boot Parameters in this 2078 * case since that command is only available in bootloader mode. 2079 */ 2080 if (ver.fw_variant == 0x23) { 2081 clear_bit(BTUSB_BOOTLOADER, &data->flags); 2082 btintel_check_bdaddr(hdev); 2083 return 0; 2084 } 2085 2086 /* If the device is not in bootloader mode, then the only possible 2087 * choice is to return an error and abort the device initialization. 2088 */ 2089 if (ver.fw_variant != 0x06) { 2090 BT_ERR("%s: Unsupported Intel firmware variant (%u)", 2091 hdev->name, ver.fw_variant); 2092 return -ENODEV; 2093 } 2094 2095 /* Read the secure boot parameters to identify the operating 2096 * details of the bootloader. 2097 */ 2098 skb = __hci_cmd_sync(hdev, 0xfc0d, 0, NULL, HCI_INIT_TIMEOUT); 2099 if (IS_ERR(skb)) { 2100 BT_ERR("%s: Reading Intel boot parameters failed (%ld)", 2101 hdev->name, PTR_ERR(skb)); 2102 return PTR_ERR(skb); 2103 } 2104 2105 if (skb->len != sizeof(*params)) { 2106 BT_ERR("%s: Intel boot parameters size mismatch", hdev->name); 2107 kfree_skb(skb); 2108 return -EILSEQ; 2109 } 2110 2111 params = (struct intel_boot_params *)skb->data; 2112 2113 bt_dev_info(hdev, "Device revision is %u", 2114 le16_to_cpu(params->dev_revid)); 2115 2116 bt_dev_info(hdev, "Secure boot is %s", 2117 params->secure_boot ? "enabled" : "disabled"); 2118 2119 bt_dev_info(hdev, "OTP lock is %s", 2120 params->otp_lock ? "enabled" : "disabled"); 2121 2122 bt_dev_info(hdev, "API lock is %s", 2123 params->api_lock ? "enabled" : "disabled"); 2124 2125 bt_dev_info(hdev, "Debug lock is %s", 2126 params->debug_lock ? "enabled" : "disabled"); 2127 2128 bt_dev_info(hdev, "Minimum firmware build %u week %u %u", 2129 params->min_fw_build_nn, params->min_fw_build_cw, 2130 2000 + params->min_fw_build_yy); 2131 2132 /* It is required that every single firmware fragment is acknowledged 2133 * with a command complete event. If the boot parameters indicate 2134 * that this bootloader does not send them, then abort the setup. 2135 */ 2136 if (params->limited_cce != 0x00) { 2137 BT_ERR("%s: Unsupported Intel firmware loading method (%u)", 2138 hdev->name, params->limited_cce); 2139 kfree_skb(skb); 2140 return -EINVAL; 2141 } 2142 2143 /* If the OTP has no valid Bluetooth device address, then there will 2144 * also be no valid address for the operational firmware. 2145 */ 2146 if (!bacmp(¶ms->otp_bdaddr, BDADDR_ANY)) { 2147 bt_dev_info(hdev, "No device address configured"); 2148 set_bit(HCI_QUIRK_INVALID_BDADDR, &hdev->quirks); 2149 } 2150 2151 /* With this Intel bootloader only the hardware variant and device 2152 * revision information are used to select the right firmware for SfP 2153 * and WsP. 2154 * 2155 * The firmware filename is ibt-<hw_variant>-<dev_revid>.sfi. 2156 * 2157 * Currently the supported hardware variants are: 2158 * 11 (0x0b) for iBT3.0 (LnP/SfP) 2159 * 12 (0x0c) for iBT3.5 (WsP) 2160 * 2161 * For ThP/JfP and for future SKU's, the FW name varies based on HW 2162 * variant, HW revision and FW revision, as these are dependent on CNVi 2163 * and RF Combination. 2164 * 2165 * 17 (0x11) for iBT3.5 (JfP) 2166 * 18 (0x12) for iBT3.5 (ThP) 2167 * 2168 * The firmware file name for these will be 2169 * ibt-<hw_variant>-<hw_revision>-<fw_revision>.sfi. 2170 * 2171 */ 2172 switch (ver.hw_variant) { 2173 case 0x0b: /* SfP */ 2174 case 0x0c: /* WsP */ 2175 snprintf(fwname, sizeof(fwname), "intel/ibt-%u-%u.sfi", 2176 le16_to_cpu(ver.hw_variant), 2177 le16_to_cpu(params->dev_revid)); 2178 break; 2179 case 0x11: /* JfP */ 2180 case 0x12: /* ThP */ 2181 snprintf(fwname, sizeof(fwname), "intel/ibt-%u-%u-%u.sfi", 2182 le16_to_cpu(ver.hw_variant), 2183 le16_to_cpu(ver.hw_revision), 2184 le16_to_cpu(ver.fw_revision)); 2185 break; 2186 default: 2187 BT_ERR("%s: Unsupported Intel firmware naming", hdev->name); 2188 return -EINVAL; 2189 } 2190 2191 err = request_firmware(&fw, fwname, &hdev->dev); 2192 if (err < 0) { 2193 BT_ERR("%s: Failed to load Intel firmware file (%d)", 2194 hdev->name, err); 2195 kfree_skb(skb); 2196 return err; 2197 } 2198 2199 bt_dev_info(hdev, "Found device firmware: %s", fwname); 2200 2201 /* Save the DDC file name for later use to apply once the firmware 2202 * downloading is done. 2203 */ 2204 switch (ver.hw_variant) { 2205 case 0x0b: /* SfP */ 2206 case 0x0c: /* WsP */ 2207 snprintf(fwname, sizeof(fwname), "intel/ibt-%u-%u.ddc", 2208 le16_to_cpu(ver.hw_variant), 2209 le16_to_cpu(params->dev_revid)); 2210 break; 2211 case 0x11: /* JfP */ 2212 case 0x12: /* ThP */ 2213 snprintf(fwname, sizeof(fwname), "intel/ibt-%u-%u-%u.ddc", 2214 le16_to_cpu(ver.hw_variant), 2215 le16_to_cpu(ver.hw_revision), 2216 le16_to_cpu(ver.fw_revision)); 2217 break; 2218 default: 2219 BT_ERR("%s: Unsupported Intel firmware naming", hdev->name); 2220 return -EINVAL; 2221 } 2222 2223 kfree_skb(skb); 2224 2225 if (fw->size < 644) { 2226 BT_ERR("%s: Invalid size of firmware file (%zu)", 2227 hdev->name, fw->size); 2228 err = -EBADF; 2229 goto done; 2230 } 2231 2232 set_bit(BTUSB_DOWNLOADING, &data->flags); 2233 2234 /* Start the firmware download transaction with the Init fragment 2235 * represented by the 128 bytes of CSS header. 2236 */ 2237 err = btintel_secure_send(hdev, 0x00, 128, fw->data); 2238 if (err < 0) { 2239 BT_ERR("%s: Failed to send firmware header (%d)", 2240 hdev->name, err); 2241 goto done; 2242 } 2243 2244 /* Send the 256 bytes of public key information from the firmware 2245 * as the PKey fragment. 2246 */ 2247 err = btintel_secure_send(hdev, 0x03, 256, fw->data + 128); 2248 if (err < 0) { 2249 BT_ERR("%s: Failed to send firmware public key (%d)", 2250 hdev->name, err); 2251 goto done; 2252 } 2253 2254 /* Send the 256 bytes of signature information from the firmware 2255 * as the Sign fragment. 2256 */ 2257 err = btintel_secure_send(hdev, 0x02, 256, fw->data + 388); 2258 if (err < 0) { 2259 BT_ERR("%s: Failed to send firmware signature (%d)", 2260 hdev->name, err); 2261 goto done; 2262 } 2263 2264 fw_ptr = fw->data + 644; 2265 frag_len = 0; 2266 2267 while (fw_ptr - fw->data < fw->size) { 2268 struct hci_command_hdr *cmd = (void *)(fw_ptr + frag_len); 2269 2270 frag_len += sizeof(*cmd) + cmd->plen; 2271 2272 /* The parameter length of the secure send command requires 2273 * a 4 byte alignment. It happens so that the firmware file 2274 * contains proper Intel_NOP commands to align the fragments 2275 * as needed. 2276 * 2277 * Send set of commands with 4 byte alignment from the 2278 * firmware data buffer as a single Data fragement. 2279 */ 2280 if (!(frag_len % 4)) { 2281 err = btintel_secure_send(hdev, 0x01, frag_len, fw_ptr); 2282 if (err < 0) { 2283 BT_ERR("%s: Failed to send firmware data (%d)", 2284 hdev->name, err); 2285 goto done; 2286 } 2287 2288 fw_ptr += frag_len; 2289 frag_len = 0; 2290 } 2291 } 2292 2293 set_bit(BTUSB_FIRMWARE_LOADED, &data->flags); 2294 2295 bt_dev_info(hdev, "Waiting for firmware download to complete"); 2296 2297 /* Before switching the device into operational mode and with that 2298 * booting the loaded firmware, wait for the bootloader notification 2299 * that all fragments have been successfully received. 2300 * 2301 * When the event processing receives the notification, then the 2302 * BTUSB_DOWNLOADING flag will be cleared. 2303 * 2304 * The firmware loading should not take longer than 5 seconds 2305 * and thus just timeout if that happens and fail the setup 2306 * of this device. 2307 */ 2308 err = wait_on_bit_timeout(&data->flags, BTUSB_DOWNLOADING, 2309 TASK_INTERRUPTIBLE, 2310 msecs_to_jiffies(5000)); 2311 if (err == -EINTR) { 2312 BT_ERR("%s: Firmware loading interrupted", hdev->name); 2313 goto done; 2314 } 2315 2316 if (err) { 2317 BT_ERR("%s: Firmware loading timeout", hdev->name); 2318 err = -ETIMEDOUT; 2319 goto done; 2320 } 2321 2322 if (test_bit(BTUSB_FIRMWARE_FAILED, &data->flags)) { 2323 BT_ERR("%s: Firmware loading failed", hdev->name); 2324 err = -ENOEXEC; 2325 goto done; 2326 } 2327 2328 rettime = ktime_get(); 2329 delta = ktime_sub(rettime, calltime); 2330 duration = (unsigned long long) ktime_to_ns(delta) >> 10; 2331 2332 bt_dev_info(hdev, "Firmware loaded in %llu usecs", duration); 2333 2334 done: 2335 release_firmware(fw); 2336 2337 if (err < 0) 2338 return err; 2339 2340 calltime = ktime_get(); 2341 2342 set_bit(BTUSB_BOOTING, &data->flags); 2343 2344 skb = __hci_cmd_sync(hdev, 0xfc01, sizeof(reset_param), reset_param, 2345 HCI_INIT_TIMEOUT); 2346 if (IS_ERR(skb)) 2347 return PTR_ERR(skb); 2348 2349 kfree_skb(skb); 2350 2351 /* The bootloader will not indicate when the device is ready. This 2352 * is done by the operational firmware sending bootup notification. 2353 * 2354 * Booting into operational firmware should not take longer than 2355 * 1 second. However if that happens, then just fail the setup 2356 * since something went wrong. 2357 */ 2358 bt_dev_info(hdev, "Waiting for device to boot"); 2359 2360 err = wait_on_bit_timeout(&data->flags, BTUSB_BOOTING, 2361 TASK_INTERRUPTIBLE, 2362 msecs_to_jiffies(1000)); 2363 2364 if (err == -EINTR) { 2365 BT_ERR("%s: Device boot interrupted", hdev->name); 2366 return -EINTR; 2367 } 2368 2369 if (err) { 2370 BT_ERR("%s: Device boot timeout", hdev->name); 2371 return -ETIMEDOUT; 2372 } 2373 2374 rettime = ktime_get(); 2375 delta = ktime_sub(rettime, calltime); 2376 duration = (unsigned long long) ktime_to_ns(delta) >> 10; 2377 2378 bt_dev_info(hdev, "Device booted in %llu usecs", duration); 2379 2380 clear_bit(BTUSB_BOOTLOADER, &data->flags); 2381 2382 /* Once the device is running in operational mode, it needs to apply 2383 * the device configuration (DDC) parameters. 2384 * 2385 * The device can work without DDC parameters, so even if it fails 2386 * to load the file, no need to fail the setup. 2387 */ 2388 btintel_load_ddc_config(hdev, fwname); 2389 2390 /* Set the event mask for Intel specific vendor events. This enables 2391 * a few extra events that are useful during general operation. It 2392 * does not enable any debugging related events. 2393 * 2394 * The device will function correctly without these events enabled 2395 * and thus no need to fail the setup. 2396 */ 2397 btintel_set_event_mask(hdev, false); 2398 2399 return 0; 2400 } 2401 2402 static int btusb_shutdown_intel(struct hci_dev *hdev) 2403 { 2404 struct sk_buff *skb; 2405 long ret; 2406 2407 /* Some platforms have an issue with BT LED when the interface is 2408 * down or BT radio is turned off, which takes 5 seconds to BT LED 2409 * goes off. This command turns off the BT LED immediately. 2410 */ 2411 skb = __hci_cmd_sync(hdev, 0xfc3f, 0, NULL, HCI_INIT_TIMEOUT); 2412 if (IS_ERR(skb)) { 2413 ret = PTR_ERR(skb); 2414 BT_ERR("%s: turning off Intel device LED failed (%ld)", 2415 hdev->name, ret); 2416 return ret; 2417 } 2418 kfree_skb(skb); 2419 2420 return 0; 2421 } 2422 2423 #ifdef CONFIG_PM 2424 /* Configure an out-of-band gpio as wake-up pin, if specified in device tree */ 2425 static int marvell_config_oob_wake(struct hci_dev *hdev) 2426 { 2427 struct sk_buff *skb; 2428 struct btusb_data *data = hci_get_drvdata(hdev); 2429 struct device *dev = &data->udev->dev; 2430 u16 pin, gap, opcode; 2431 int ret; 2432 u8 cmd[5]; 2433 2434 /* Move on if no wakeup pin specified */ 2435 if (of_property_read_u16(dev->of_node, "marvell,wakeup-pin", &pin) || 2436 of_property_read_u16(dev->of_node, "marvell,wakeup-gap-ms", &gap)) 2437 return 0; 2438 2439 /* Vendor specific command to configure a GPIO as wake-up pin */ 2440 opcode = hci_opcode_pack(0x3F, 0x59); 2441 cmd[0] = opcode & 0xFF; 2442 cmd[1] = opcode >> 8; 2443 cmd[2] = 2; /* length of parameters that follow */ 2444 cmd[3] = pin; 2445 cmd[4] = gap; /* time in ms, for which wakeup pin should be asserted */ 2446 2447 skb = bt_skb_alloc(sizeof(cmd), GFP_KERNEL); 2448 if (!skb) { 2449 bt_dev_err(hdev, "%s: No memory\n", __func__); 2450 return -ENOMEM; 2451 } 2452 2453 skb_put_data(skb, cmd, sizeof(cmd)); 2454 hci_skb_pkt_type(skb) = HCI_COMMAND_PKT; 2455 2456 ret = btusb_send_frame(hdev, skb); 2457 if (ret) { 2458 bt_dev_err(hdev, "%s: configuration failed\n", __func__); 2459 kfree_skb(skb); 2460 return ret; 2461 } 2462 2463 return 0; 2464 } 2465 #endif 2466 2467 static int btusb_set_bdaddr_marvell(struct hci_dev *hdev, 2468 const bdaddr_t *bdaddr) 2469 { 2470 struct sk_buff *skb; 2471 u8 buf[8]; 2472 long ret; 2473 2474 buf[0] = 0xfe; 2475 buf[1] = sizeof(bdaddr_t); 2476 memcpy(buf + 2, bdaddr, sizeof(bdaddr_t)); 2477 2478 skb = __hci_cmd_sync(hdev, 0xfc22, sizeof(buf), buf, HCI_INIT_TIMEOUT); 2479 if (IS_ERR(skb)) { 2480 ret = PTR_ERR(skb); 2481 bt_dev_err(hdev, "changing Marvell device address failed (%ld)", 2482 ret); 2483 return ret; 2484 } 2485 kfree_skb(skb); 2486 2487 return 0; 2488 } 2489 2490 static int btusb_set_bdaddr_ath3012(struct hci_dev *hdev, 2491 const bdaddr_t *bdaddr) 2492 { 2493 struct sk_buff *skb; 2494 u8 buf[10]; 2495 long ret; 2496 2497 buf[0] = 0x01; 2498 buf[1] = 0x01; 2499 buf[2] = 0x00; 2500 buf[3] = sizeof(bdaddr_t); 2501 memcpy(buf + 4, bdaddr, sizeof(bdaddr_t)); 2502 2503 skb = __hci_cmd_sync(hdev, 0xfc0b, sizeof(buf), buf, HCI_INIT_TIMEOUT); 2504 if (IS_ERR(skb)) { 2505 ret = PTR_ERR(skb); 2506 bt_dev_err(hdev, "Change address command failed (%ld)", ret); 2507 return ret; 2508 } 2509 kfree_skb(skb); 2510 2511 return 0; 2512 } 2513 2514 #define QCA_DFU_PACKET_LEN 4096 2515 2516 #define QCA_GET_TARGET_VERSION 0x09 2517 #define QCA_CHECK_STATUS 0x05 2518 #define QCA_DFU_DOWNLOAD 0x01 2519 2520 #define QCA_SYSCFG_UPDATED 0x40 2521 #define QCA_PATCH_UPDATED 0x80 2522 #define QCA_DFU_TIMEOUT 3000 2523 2524 struct qca_version { 2525 __le32 rom_version; 2526 __le32 patch_version; 2527 __le32 ram_version; 2528 __le32 ref_clock; 2529 __u8 reserved[4]; 2530 } __packed; 2531 2532 struct qca_rampatch_version { 2533 __le16 rom_version; 2534 __le16 patch_version; 2535 } __packed; 2536 2537 struct qca_device_info { 2538 u32 rom_version; 2539 u8 rampatch_hdr; /* length of header in rampatch */ 2540 u8 nvm_hdr; /* length of header in NVM */ 2541 u8 ver_offset; /* offset of version structure in rampatch */ 2542 }; 2543 2544 static const struct qca_device_info qca_devices_table[] = { 2545 { 0x00000100, 20, 4, 10 }, /* Rome 1.0 */ 2546 { 0x00000101, 20, 4, 10 }, /* Rome 1.1 */ 2547 { 0x00000200, 28, 4, 18 }, /* Rome 2.0 */ 2548 { 0x00000201, 28, 4, 18 }, /* Rome 2.1 */ 2549 { 0x00000300, 28, 4, 18 }, /* Rome 3.0 */ 2550 { 0x00000302, 28, 4, 18 }, /* Rome 3.2 */ 2551 }; 2552 2553 static int btusb_qca_send_vendor_req(struct hci_dev *hdev, u8 request, 2554 void *data, u16 size) 2555 { 2556 struct btusb_data *btdata = hci_get_drvdata(hdev); 2557 struct usb_device *udev = btdata->udev; 2558 int pipe, err; 2559 u8 *buf; 2560 2561 buf = kmalloc(size, GFP_KERNEL); 2562 if (!buf) 2563 return -ENOMEM; 2564 2565 /* Found some of USB hosts have IOT issues with ours so that we should 2566 * not wait until HCI layer is ready. 2567 */ 2568 pipe = usb_rcvctrlpipe(udev, 0); 2569 err = usb_control_msg(udev, pipe, request, USB_TYPE_VENDOR | USB_DIR_IN, 2570 0, 0, buf, size, USB_CTRL_SET_TIMEOUT); 2571 if (err < 0) { 2572 bt_dev_err(hdev, "Failed to access otp area (%d)", err); 2573 goto done; 2574 } 2575 2576 memcpy(data, buf, size); 2577 2578 done: 2579 kfree(buf); 2580 2581 return err; 2582 } 2583 2584 static int btusb_setup_qca_download_fw(struct hci_dev *hdev, 2585 const struct firmware *firmware, 2586 size_t hdr_size) 2587 { 2588 struct btusb_data *btdata = hci_get_drvdata(hdev); 2589 struct usb_device *udev = btdata->udev; 2590 size_t count, size, sent = 0; 2591 int pipe, len, err; 2592 u8 *buf; 2593 2594 buf = kmalloc(QCA_DFU_PACKET_LEN, GFP_KERNEL); 2595 if (!buf) 2596 return -ENOMEM; 2597 2598 count = firmware->size; 2599 2600 size = min_t(size_t, count, hdr_size); 2601 memcpy(buf, firmware->data, size); 2602 2603 /* USB patches should go down to controller through USB path 2604 * because binary format fits to go down through USB channel. 2605 * USB control path is for patching headers and USB bulk is for 2606 * patch body. 2607 */ 2608 pipe = usb_sndctrlpipe(udev, 0); 2609 err = usb_control_msg(udev, pipe, QCA_DFU_DOWNLOAD, USB_TYPE_VENDOR, 2610 0, 0, buf, size, USB_CTRL_SET_TIMEOUT); 2611 if (err < 0) { 2612 bt_dev_err(hdev, "Failed to send headers (%d)", err); 2613 goto done; 2614 } 2615 2616 sent += size; 2617 count -= size; 2618 2619 while (count) { 2620 size = min_t(size_t, count, QCA_DFU_PACKET_LEN); 2621 2622 memcpy(buf, firmware->data + sent, size); 2623 2624 pipe = usb_sndbulkpipe(udev, 0x02); 2625 err = usb_bulk_msg(udev, pipe, buf, size, &len, 2626 QCA_DFU_TIMEOUT); 2627 if (err < 0) { 2628 bt_dev_err(hdev, "Failed to send body at %zd of %zd (%d)", 2629 sent, firmware->size, err); 2630 break; 2631 } 2632 2633 if (size != len) { 2634 bt_dev_err(hdev, "Failed to get bulk buffer"); 2635 err = -EILSEQ; 2636 break; 2637 } 2638 2639 sent += size; 2640 count -= size; 2641 } 2642 2643 done: 2644 kfree(buf); 2645 return err; 2646 } 2647 2648 static int btusb_setup_qca_load_rampatch(struct hci_dev *hdev, 2649 struct qca_version *ver, 2650 const struct qca_device_info *info) 2651 { 2652 struct qca_rampatch_version *rver; 2653 const struct firmware *fw; 2654 u32 ver_rom, ver_patch; 2655 u16 rver_rom, rver_patch; 2656 char fwname[64]; 2657 int err; 2658 2659 ver_rom = le32_to_cpu(ver->rom_version); 2660 ver_patch = le32_to_cpu(ver->patch_version); 2661 2662 snprintf(fwname, sizeof(fwname), "qca/rampatch_usb_%08x.bin", ver_rom); 2663 2664 err = request_firmware(&fw, fwname, &hdev->dev); 2665 if (err) { 2666 bt_dev_err(hdev, "failed to request rampatch file: %s (%d)", 2667 fwname, err); 2668 return err; 2669 } 2670 2671 bt_dev_info(hdev, "using rampatch file: %s", fwname); 2672 2673 rver = (struct qca_rampatch_version *)(fw->data + info->ver_offset); 2674 rver_rom = le16_to_cpu(rver->rom_version); 2675 rver_patch = le16_to_cpu(rver->patch_version); 2676 2677 bt_dev_info(hdev, "QCA: patch rome 0x%x build 0x%x, " 2678 "firmware rome 0x%x build 0x%x", 2679 rver_rom, rver_patch, ver_rom, ver_patch); 2680 2681 if (rver_rom != ver_rom || rver_patch <= ver_patch) { 2682 bt_dev_err(hdev, "rampatch file version did not match with firmware"); 2683 err = -EINVAL; 2684 goto done; 2685 } 2686 2687 err = btusb_setup_qca_download_fw(hdev, fw, info->rampatch_hdr); 2688 2689 done: 2690 release_firmware(fw); 2691 2692 return err; 2693 } 2694 2695 static int btusb_setup_qca_load_nvm(struct hci_dev *hdev, 2696 struct qca_version *ver, 2697 const struct qca_device_info *info) 2698 { 2699 const struct firmware *fw; 2700 char fwname[64]; 2701 int err; 2702 2703 snprintf(fwname, sizeof(fwname), "qca/nvm_usb_%08x.bin", 2704 le32_to_cpu(ver->rom_version)); 2705 2706 err = request_firmware(&fw, fwname, &hdev->dev); 2707 if (err) { 2708 bt_dev_err(hdev, "failed to request NVM file: %s (%d)", 2709 fwname, err); 2710 return err; 2711 } 2712 2713 bt_dev_info(hdev, "using NVM file: %s", fwname); 2714 2715 err = btusb_setup_qca_download_fw(hdev, fw, info->nvm_hdr); 2716 2717 release_firmware(fw); 2718 2719 return err; 2720 } 2721 2722 static int btusb_setup_qca(struct hci_dev *hdev) 2723 { 2724 const struct qca_device_info *info = NULL; 2725 struct qca_version ver; 2726 u32 ver_rom; 2727 u8 status; 2728 int i, err; 2729 2730 err = btusb_qca_send_vendor_req(hdev, QCA_GET_TARGET_VERSION, &ver, 2731 sizeof(ver)); 2732 if (err < 0) 2733 return err; 2734 2735 ver_rom = le32_to_cpu(ver.rom_version); 2736 for (i = 0; i < ARRAY_SIZE(qca_devices_table); i++) { 2737 if (ver_rom == qca_devices_table[i].rom_version) 2738 info = &qca_devices_table[i]; 2739 } 2740 if (!info) { 2741 bt_dev_err(hdev, "don't support firmware rome 0x%x", ver_rom); 2742 return -ENODEV; 2743 } 2744 2745 err = btusb_qca_send_vendor_req(hdev, QCA_CHECK_STATUS, &status, 2746 sizeof(status)); 2747 if (err < 0) 2748 return err; 2749 2750 if (!(status & QCA_PATCH_UPDATED)) { 2751 err = btusb_setup_qca_load_rampatch(hdev, &ver, info); 2752 if (err < 0) 2753 return err; 2754 } 2755 2756 if (!(status & QCA_SYSCFG_UPDATED)) { 2757 err = btusb_setup_qca_load_nvm(hdev, &ver, info); 2758 if (err < 0) 2759 return err; 2760 } 2761 2762 return 0; 2763 } 2764 2765 #ifdef CONFIG_BT_HCIBTUSB_BCM 2766 static inline int __set_diag_interface(struct hci_dev *hdev) 2767 { 2768 struct btusb_data *data = hci_get_drvdata(hdev); 2769 struct usb_interface *intf = data->diag; 2770 int i; 2771 2772 if (!data->diag) 2773 return -ENODEV; 2774 2775 data->diag_tx_ep = NULL; 2776 data->diag_rx_ep = NULL; 2777 2778 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) { 2779 struct usb_endpoint_descriptor *ep_desc; 2780 2781 ep_desc = &intf->cur_altsetting->endpoint[i].desc; 2782 2783 if (!data->diag_tx_ep && usb_endpoint_is_bulk_out(ep_desc)) { 2784 data->diag_tx_ep = ep_desc; 2785 continue; 2786 } 2787 2788 if (!data->diag_rx_ep && usb_endpoint_is_bulk_in(ep_desc)) { 2789 data->diag_rx_ep = ep_desc; 2790 continue; 2791 } 2792 } 2793 2794 if (!data->diag_tx_ep || !data->diag_rx_ep) { 2795 bt_dev_err(hdev, "invalid diagnostic descriptors"); 2796 return -ENODEV; 2797 } 2798 2799 return 0; 2800 } 2801 2802 static struct urb *alloc_diag_urb(struct hci_dev *hdev, bool enable) 2803 { 2804 struct btusb_data *data = hci_get_drvdata(hdev); 2805 struct sk_buff *skb; 2806 struct urb *urb; 2807 unsigned int pipe; 2808 2809 if (!data->diag_tx_ep) 2810 return ERR_PTR(-ENODEV); 2811 2812 urb = usb_alloc_urb(0, GFP_KERNEL); 2813 if (!urb) 2814 return ERR_PTR(-ENOMEM); 2815 2816 skb = bt_skb_alloc(2, GFP_KERNEL); 2817 if (!skb) { 2818 usb_free_urb(urb); 2819 return ERR_PTR(-ENOMEM); 2820 } 2821 2822 skb_put_u8(skb, 0xf0); 2823 skb_put_u8(skb, enable); 2824 2825 pipe = usb_sndbulkpipe(data->udev, data->diag_tx_ep->bEndpointAddress); 2826 2827 usb_fill_bulk_urb(urb, data->udev, pipe, 2828 skb->data, skb->len, btusb_tx_complete, skb); 2829 2830 skb->dev = (void *)hdev; 2831 2832 return urb; 2833 } 2834 2835 static int btusb_bcm_set_diag(struct hci_dev *hdev, bool enable) 2836 { 2837 struct btusb_data *data = hci_get_drvdata(hdev); 2838 struct urb *urb; 2839 2840 if (!data->diag) 2841 return -ENODEV; 2842 2843 if (!test_bit(HCI_RUNNING, &hdev->flags)) 2844 return -ENETDOWN; 2845 2846 urb = alloc_diag_urb(hdev, enable); 2847 if (IS_ERR(urb)) 2848 return PTR_ERR(urb); 2849 2850 return submit_or_queue_tx_urb(hdev, urb); 2851 } 2852 #endif 2853 2854 #ifdef CONFIG_PM 2855 static irqreturn_t btusb_oob_wake_handler(int irq, void *priv) 2856 { 2857 struct btusb_data *data = priv; 2858 2859 pm_wakeup_event(&data->udev->dev, 0); 2860 pm_system_wakeup(); 2861 2862 /* Disable only if not already disabled (keep it balanced) */ 2863 if (test_and_clear_bit(BTUSB_OOB_WAKE_ENABLED, &data->flags)) { 2864 disable_irq_nosync(irq); 2865 disable_irq_wake(irq); 2866 } 2867 return IRQ_HANDLED; 2868 } 2869 2870 static const struct of_device_id btusb_match_table[] = { 2871 { .compatible = "usb1286,204e" }, 2872 { } 2873 }; 2874 MODULE_DEVICE_TABLE(of, btusb_match_table); 2875 2876 /* Use an oob wakeup pin? */ 2877 static int btusb_config_oob_wake(struct hci_dev *hdev) 2878 { 2879 struct btusb_data *data = hci_get_drvdata(hdev); 2880 struct device *dev = &data->udev->dev; 2881 int irq, ret; 2882 2883 clear_bit(BTUSB_OOB_WAKE_ENABLED, &data->flags); 2884 2885 if (!of_match_device(btusb_match_table, dev)) 2886 return 0; 2887 2888 /* Move on if no IRQ specified */ 2889 irq = of_irq_get_byname(dev->of_node, "wakeup"); 2890 if (irq <= 0) { 2891 bt_dev_dbg(hdev, "%s: no OOB Wakeup IRQ in DT", __func__); 2892 return 0; 2893 } 2894 2895 ret = devm_request_irq(&hdev->dev, irq, btusb_oob_wake_handler, 2896 0, "OOB Wake-on-BT", data); 2897 if (ret) { 2898 bt_dev_err(hdev, "%s: IRQ request failed", __func__); 2899 return ret; 2900 } 2901 2902 ret = device_init_wakeup(dev, true); 2903 if (ret) { 2904 bt_dev_err(hdev, "%s: failed to init_wakeup", __func__); 2905 return ret; 2906 } 2907 2908 data->oob_wake_irq = irq; 2909 disable_irq(irq); 2910 bt_dev_info(hdev, "OOB Wake-on-BT configured at IRQ %u", irq); 2911 return 0; 2912 } 2913 #endif 2914 2915 static int btusb_probe(struct usb_interface *intf, 2916 const struct usb_device_id *id) 2917 { 2918 struct usb_endpoint_descriptor *ep_desc; 2919 struct btusb_data *data; 2920 struct hci_dev *hdev; 2921 unsigned ifnum_base; 2922 int i, err; 2923 2924 BT_DBG("intf %p id %p", intf, id); 2925 2926 /* interface numbers are hardcoded in the spec */ 2927 if (intf->cur_altsetting->desc.bInterfaceNumber != 0) { 2928 if (!(id->driver_info & BTUSB_IFNUM_2)) 2929 return -ENODEV; 2930 if (intf->cur_altsetting->desc.bInterfaceNumber != 2) 2931 return -ENODEV; 2932 } 2933 2934 ifnum_base = intf->cur_altsetting->desc.bInterfaceNumber; 2935 2936 if (!id->driver_info) { 2937 const struct usb_device_id *match; 2938 2939 match = usb_match_id(intf, blacklist_table); 2940 if (match) 2941 id = match; 2942 } 2943 2944 if (id->driver_info == BTUSB_IGNORE) 2945 return -ENODEV; 2946 2947 if (id->driver_info & BTUSB_ATH3012) { 2948 struct usb_device *udev = interface_to_usbdev(intf); 2949 2950 /* Old firmware would otherwise let ath3k driver load 2951 * patch and sysconfig files 2952 */ 2953 if (le16_to_cpu(udev->descriptor.bcdDevice) <= 0x0001) 2954 return -ENODEV; 2955 } 2956 2957 data = devm_kzalloc(&intf->dev, sizeof(*data), GFP_KERNEL); 2958 if (!data) 2959 return -ENOMEM; 2960 2961 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) { 2962 ep_desc = &intf->cur_altsetting->endpoint[i].desc; 2963 2964 if (!data->intr_ep && usb_endpoint_is_int_in(ep_desc)) { 2965 data->intr_ep = ep_desc; 2966 continue; 2967 } 2968 2969 if (!data->bulk_tx_ep && usb_endpoint_is_bulk_out(ep_desc)) { 2970 data->bulk_tx_ep = ep_desc; 2971 continue; 2972 } 2973 2974 if (!data->bulk_rx_ep && usb_endpoint_is_bulk_in(ep_desc)) { 2975 data->bulk_rx_ep = ep_desc; 2976 continue; 2977 } 2978 } 2979 2980 if (!data->intr_ep || !data->bulk_tx_ep || !data->bulk_rx_ep) 2981 return -ENODEV; 2982 2983 if (id->driver_info & BTUSB_AMP) { 2984 data->cmdreq_type = USB_TYPE_CLASS | 0x01; 2985 data->cmdreq = 0x2b; 2986 } else { 2987 data->cmdreq_type = USB_TYPE_CLASS; 2988 data->cmdreq = 0x00; 2989 } 2990 2991 data->udev = interface_to_usbdev(intf); 2992 data->intf = intf; 2993 2994 INIT_WORK(&data->work, btusb_work); 2995 INIT_WORK(&data->waker, btusb_waker); 2996 init_usb_anchor(&data->deferred); 2997 init_usb_anchor(&data->tx_anchor); 2998 spin_lock_init(&data->txlock); 2999 3000 init_usb_anchor(&data->intr_anchor); 3001 init_usb_anchor(&data->bulk_anchor); 3002 init_usb_anchor(&data->isoc_anchor); 3003 init_usb_anchor(&data->diag_anchor); 3004 spin_lock_init(&data->rxlock); 3005 3006 if (id->driver_info & BTUSB_INTEL_NEW) { 3007 data->recv_event = btusb_recv_event_intel; 3008 data->recv_bulk = btusb_recv_bulk_intel; 3009 set_bit(BTUSB_BOOTLOADER, &data->flags); 3010 } else { 3011 data->recv_event = hci_recv_frame; 3012 data->recv_bulk = btusb_recv_bulk; 3013 } 3014 3015 hdev = hci_alloc_dev(); 3016 if (!hdev) 3017 return -ENOMEM; 3018 3019 hdev->bus = HCI_USB; 3020 hci_set_drvdata(hdev, data); 3021 3022 if (id->driver_info & BTUSB_AMP) 3023 hdev->dev_type = HCI_AMP; 3024 else 3025 hdev->dev_type = HCI_PRIMARY; 3026 3027 data->hdev = hdev; 3028 3029 SET_HCIDEV_DEV(hdev, &intf->dev); 3030 3031 hdev->open = btusb_open; 3032 hdev->close = btusb_close; 3033 hdev->flush = btusb_flush; 3034 hdev->send = btusb_send_frame; 3035 hdev->notify = btusb_notify; 3036 3037 #ifdef CONFIG_PM 3038 err = btusb_config_oob_wake(hdev); 3039 if (err) 3040 goto out_free_dev; 3041 3042 /* Marvell devices may need a specific chip configuration */ 3043 if (id->driver_info & BTUSB_MARVELL && data->oob_wake_irq) { 3044 err = marvell_config_oob_wake(hdev); 3045 if (err) 3046 goto out_free_dev; 3047 } 3048 #endif 3049 if (id->driver_info & BTUSB_CW6622) 3050 set_bit(HCI_QUIRK_BROKEN_STORED_LINK_KEY, &hdev->quirks); 3051 3052 if (id->driver_info & BTUSB_BCM2045) 3053 set_bit(HCI_QUIRK_BROKEN_STORED_LINK_KEY, &hdev->quirks); 3054 3055 if (id->driver_info & BTUSB_BCM92035) 3056 hdev->setup = btusb_setup_bcm92035; 3057 3058 #ifdef CONFIG_BT_HCIBTUSB_BCM 3059 if (id->driver_info & BTUSB_BCM_PATCHRAM) { 3060 hdev->manufacturer = 15; 3061 hdev->setup = btbcm_setup_patchram; 3062 hdev->set_diag = btusb_bcm_set_diag; 3063 hdev->set_bdaddr = btbcm_set_bdaddr; 3064 3065 /* Broadcom LM_DIAG Interface numbers are hardcoded */ 3066 data->diag = usb_ifnum_to_if(data->udev, ifnum_base + 2); 3067 } 3068 3069 if (id->driver_info & BTUSB_BCM_APPLE) { 3070 hdev->manufacturer = 15; 3071 hdev->setup = btbcm_setup_apple; 3072 hdev->set_diag = btusb_bcm_set_diag; 3073 3074 /* Broadcom LM_DIAG Interface numbers are hardcoded */ 3075 data->diag = usb_ifnum_to_if(data->udev, ifnum_base + 2); 3076 } 3077 #endif 3078 3079 if (id->driver_info & BTUSB_INTEL) { 3080 hdev->manufacturer = 2; 3081 hdev->setup = btusb_setup_intel; 3082 hdev->shutdown = btusb_shutdown_intel; 3083 hdev->set_diag = btintel_set_diag_mfg; 3084 hdev->set_bdaddr = btintel_set_bdaddr; 3085 set_bit(HCI_QUIRK_STRICT_DUPLICATE_FILTER, &hdev->quirks); 3086 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks); 3087 set_bit(HCI_QUIRK_NON_PERSISTENT_DIAG, &hdev->quirks); 3088 } 3089 3090 if (id->driver_info & BTUSB_INTEL_NEW) { 3091 hdev->manufacturer = 2; 3092 hdev->send = btusb_send_frame_intel; 3093 hdev->setup = btusb_setup_intel_new; 3094 hdev->hw_error = btintel_hw_error; 3095 hdev->set_diag = btintel_set_diag; 3096 hdev->set_bdaddr = btintel_set_bdaddr; 3097 set_bit(HCI_QUIRK_STRICT_DUPLICATE_FILTER, &hdev->quirks); 3098 set_bit(HCI_QUIRK_NON_PERSISTENT_DIAG, &hdev->quirks); 3099 } 3100 3101 if (id->driver_info & BTUSB_MARVELL) 3102 hdev->set_bdaddr = btusb_set_bdaddr_marvell; 3103 3104 if (id->driver_info & BTUSB_SWAVE) { 3105 set_bit(HCI_QUIRK_FIXUP_INQUIRY_MODE, &hdev->quirks); 3106 set_bit(HCI_QUIRK_BROKEN_LOCAL_COMMANDS, &hdev->quirks); 3107 } 3108 3109 if (id->driver_info & BTUSB_INTEL_BOOT) { 3110 hdev->manufacturer = 2; 3111 set_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks); 3112 } 3113 3114 if (id->driver_info & BTUSB_ATH3012) { 3115 hdev->set_bdaddr = btusb_set_bdaddr_ath3012; 3116 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks); 3117 set_bit(HCI_QUIRK_STRICT_DUPLICATE_FILTER, &hdev->quirks); 3118 } 3119 3120 if (id->driver_info & BTUSB_QCA_ROME) { 3121 data->setup_on_usb = btusb_setup_qca; 3122 hdev->set_bdaddr = btusb_set_bdaddr_ath3012; 3123 3124 /* QCA Rome devices lose their updated firmware over suspend, 3125 * but the USB hub doesn't notice any status change. 3126 * explicitly request a device reset on resume. 3127 */ 3128 interface_to_usbdev(intf)->quirks |= USB_QUIRK_RESET_RESUME; 3129 } 3130 3131 #ifdef CONFIG_BT_HCIBTUSB_RTL 3132 if (id->driver_info & BTUSB_REALTEK) { 3133 hdev->setup = btrtl_setup_realtek; 3134 3135 /* Realtek devices lose their updated firmware over suspend, 3136 * but the USB hub doesn't notice any status change. 3137 * Explicitly request a device reset on resume. 3138 */ 3139 interface_to_usbdev(intf)->quirks |= USB_QUIRK_RESET_RESUME; 3140 } 3141 #endif 3142 3143 if (id->driver_info & BTUSB_AMP) { 3144 /* AMP controllers do not support SCO packets */ 3145 data->isoc = NULL; 3146 } else { 3147 /* Interface orders are hardcoded in the specification */ 3148 data->isoc = usb_ifnum_to_if(data->udev, ifnum_base + 1); 3149 data->isoc_ifnum = ifnum_base + 1; 3150 } 3151 3152 if (!reset) 3153 set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks); 3154 3155 if (force_scofix || id->driver_info & BTUSB_WRONG_SCO_MTU) { 3156 if (!disable_scofix) 3157 set_bit(HCI_QUIRK_FIXUP_BUFFER_SIZE, &hdev->quirks); 3158 } 3159 3160 if (id->driver_info & BTUSB_BROKEN_ISOC) 3161 data->isoc = NULL; 3162 3163 if (id->driver_info & BTUSB_DIGIANSWER) { 3164 data->cmdreq_type = USB_TYPE_VENDOR; 3165 set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks); 3166 } 3167 3168 if (id->driver_info & BTUSB_CSR) { 3169 struct usb_device *udev = data->udev; 3170 u16 bcdDevice = le16_to_cpu(udev->descriptor.bcdDevice); 3171 3172 /* Old firmware would otherwise execute USB reset */ 3173 if (bcdDevice < 0x117) 3174 set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks); 3175 3176 /* Fake CSR devices with broken commands */ 3177 if (bcdDevice <= 0x100 || bcdDevice == 0x134) 3178 hdev->setup = btusb_setup_csr; 3179 3180 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks); 3181 } 3182 3183 if (id->driver_info & BTUSB_SNIFFER) { 3184 struct usb_device *udev = data->udev; 3185 3186 /* New sniffer firmware has crippled HCI interface */ 3187 if (le16_to_cpu(udev->descriptor.bcdDevice) > 0x997) 3188 set_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks); 3189 } 3190 3191 if (id->driver_info & BTUSB_INTEL_BOOT) { 3192 /* A bug in the bootloader causes that interrupt interface is 3193 * only enabled after receiving SetInterface(0, AltSetting=0). 3194 */ 3195 err = usb_set_interface(data->udev, 0, 0); 3196 if (err < 0) { 3197 BT_ERR("failed to set interface 0, alt 0 %d", err); 3198 goto out_free_dev; 3199 } 3200 } 3201 3202 if (data->isoc) { 3203 err = usb_driver_claim_interface(&btusb_driver, 3204 data->isoc, data); 3205 if (err < 0) 3206 goto out_free_dev; 3207 } 3208 3209 #ifdef CONFIG_BT_HCIBTUSB_BCM 3210 if (data->diag) { 3211 if (!usb_driver_claim_interface(&btusb_driver, 3212 data->diag, data)) 3213 __set_diag_interface(hdev); 3214 else 3215 data->diag = NULL; 3216 } 3217 #endif 3218 3219 if (enable_autosuspend) 3220 usb_enable_autosuspend(data->udev); 3221 3222 err = hci_register_dev(hdev); 3223 if (err < 0) 3224 goto out_free_dev; 3225 3226 usb_set_intfdata(intf, data); 3227 3228 return 0; 3229 3230 out_free_dev: 3231 hci_free_dev(hdev); 3232 return err; 3233 } 3234 3235 static void btusb_disconnect(struct usb_interface *intf) 3236 { 3237 struct btusb_data *data = usb_get_intfdata(intf); 3238 struct hci_dev *hdev; 3239 3240 BT_DBG("intf %p", intf); 3241 3242 if (!data) 3243 return; 3244 3245 hdev = data->hdev; 3246 usb_set_intfdata(data->intf, NULL); 3247 3248 if (data->isoc) 3249 usb_set_intfdata(data->isoc, NULL); 3250 3251 if (data->diag) 3252 usb_set_intfdata(data->diag, NULL); 3253 3254 hci_unregister_dev(hdev); 3255 3256 if (intf == data->intf) { 3257 if (data->isoc) 3258 usb_driver_release_interface(&btusb_driver, data->isoc); 3259 if (data->diag) 3260 usb_driver_release_interface(&btusb_driver, data->diag); 3261 } else if (intf == data->isoc) { 3262 if (data->diag) 3263 usb_driver_release_interface(&btusb_driver, data->diag); 3264 usb_driver_release_interface(&btusb_driver, data->intf); 3265 } else if (intf == data->diag) { 3266 usb_driver_release_interface(&btusb_driver, data->intf); 3267 if (data->isoc) 3268 usb_driver_release_interface(&btusb_driver, data->isoc); 3269 } 3270 3271 if (data->oob_wake_irq) 3272 device_init_wakeup(&data->udev->dev, false); 3273 3274 hci_free_dev(hdev); 3275 } 3276 3277 #ifdef CONFIG_PM 3278 static int btusb_suspend(struct usb_interface *intf, pm_message_t message) 3279 { 3280 struct btusb_data *data = usb_get_intfdata(intf); 3281 3282 BT_DBG("intf %p", intf); 3283 3284 if (data->suspend_count++) 3285 return 0; 3286 3287 spin_lock_irq(&data->txlock); 3288 if (!(PMSG_IS_AUTO(message) && data->tx_in_flight)) { 3289 set_bit(BTUSB_SUSPENDING, &data->flags); 3290 spin_unlock_irq(&data->txlock); 3291 } else { 3292 spin_unlock_irq(&data->txlock); 3293 data->suspend_count--; 3294 return -EBUSY; 3295 } 3296 3297 cancel_work_sync(&data->work); 3298 3299 btusb_stop_traffic(data); 3300 usb_kill_anchored_urbs(&data->tx_anchor); 3301 3302 if (data->oob_wake_irq && device_may_wakeup(&data->udev->dev)) { 3303 set_bit(BTUSB_OOB_WAKE_ENABLED, &data->flags); 3304 enable_irq_wake(data->oob_wake_irq); 3305 enable_irq(data->oob_wake_irq); 3306 } 3307 3308 return 0; 3309 } 3310 3311 static void play_deferred(struct btusb_data *data) 3312 { 3313 struct urb *urb; 3314 int err; 3315 3316 while ((urb = usb_get_from_anchor(&data->deferred))) { 3317 usb_anchor_urb(urb, &data->tx_anchor); 3318 3319 err = usb_submit_urb(urb, GFP_ATOMIC); 3320 if (err < 0) { 3321 if (err != -EPERM && err != -ENODEV) 3322 BT_ERR("%s urb %p submission failed (%d)", 3323 data->hdev->name, urb, -err); 3324 kfree(urb->setup_packet); 3325 usb_unanchor_urb(urb); 3326 usb_free_urb(urb); 3327 break; 3328 } 3329 3330 data->tx_in_flight++; 3331 usb_free_urb(urb); 3332 } 3333 3334 /* Cleanup the rest deferred urbs. */ 3335 while ((urb = usb_get_from_anchor(&data->deferred))) { 3336 kfree(urb->setup_packet); 3337 usb_free_urb(urb); 3338 } 3339 } 3340 3341 static int btusb_resume(struct usb_interface *intf) 3342 { 3343 struct btusb_data *data = usb_get_intfdata(intf); 3344 struct hci_dev *hdev = data->hdev; 3345 int err = 0; 3346 3347 BT_DBG("intf %p", intf); 3348 3349 if (--data->suspend_count) 3350 return 0; 3351 3352 /* Disable only if not already disabled (keep it balanced) */ 3353 if (test_and_clear_bit(BTUSB_OOB_WAKE_ENABLED, &data->flags)) { 3354 disable_irq(data->oob_wake_irq); 3355 disable_irq_wake(data->oob_wake_irq); 3356 } 3357 3358 if (!test_bit(HCI_RUNNING, &hdev->flags)) 3359 goto done; 3360 3361 if (test_bit(BTUSB_INTR_RUNNING, &data->flags)) { 3362 err = btusb_submit_intr_urb(hdev, GFP_NOIO); 3363 if (err < 0) { 3364 clear_bit(BTUSB_INTR_RUNNING, &data->flags); 3365 goto failed; 3366 } 3367 } 3368 3369 if (test_bit(BTUSB_BULK_RUNNING, &data->flags)) { 3370 err = btusb_submit_bulk_urb(hdev, GFP_NOIO); 3371 if (err < 0) { 3372 clear_bit(BTUSB_BULK_RUNNING, &data->flags); 3373 goto failed; 3374 } 3375 3376 btusb_submit_bulk_urb(hdev, GFP_NOIO); 3377 } 3378 3379 if (test_bit(BTUSB_ISOC_RUNNING, &data->flags)) { 3380 if (btusb_submit_isoc_urb(hdev, GFP_NOIO) < 0) 3381 clear_bit(BTUSB_ISOC_RUNNING, &data->flags); 3382 else 3383 btusb_submit_isoc_urb(hdev, GFP_NOIO); 3384 } 3385 3386 spin_lock_irq(&data->txlock); 3387 play_deferred(data); 3388 clear_bit(BTUSB_SUSPENDING, &data->flags); 3389 spin_unlock_irq(&data->txlock); 3390 schedule_work(&data->work); 3391 3392 return 0; 3393 3394 failed: 3395 usb_scuttle_anchored_urbs(&data->deferred); 3396 done: 3397 spin_lock_irq(&data->txlock); 3398 clear_bit(BTUSB_SUSPENDING, &data->flags); 3399 spin_unlock_irq(&data->txlock); 3400 3401 return err; 3402 } 3403 #endif 3404 3405 static struct usb_driver btusb_driver = { 3406 .name = "btusb", 3407 .probe = btusb_probe, 3408 .disconnect = btusb_disconnect, 3409 #ifdef CONFIG_PM 3410 .suspend = btusb_suspend, 3411 .resume = btusb_resume, 3412 #endif 3413 .id_table = btusb_table, 3414 .supports_autosuspend = 1, 3415 .disable_hub_initiated_lpm = 1, 3416 }; 3417 3418 module_usb_driver(btusb_driver); 3419 3420 module_param(disable_scofix, bool, 0644); 3421 MODULE_PARM_DESC(disable_scofix, "Disable fixup of wrong SCO buffer size"); 3422 3423 module_param(force_scofix, bool, 0644); 3424 MODULE_PARM_DESC(force_scofix, "Force fixup of wrong SCO buffers size"); 3425 3426 module_param(enable_autosuspend, bool, 0644); 3427 MODULE_PARM_DESC(enable_autosuspend, "Enable USB autosuspend by default"); 3428 3429 module_param(reset, bool, 0644); 3430 MODULE_PARM_DESC(reset, "Send HCI reset command on initialization"); 3431 3432 MODULE_AUTHOR("Marcel Holtmann <marcel@holtmann.org>"); 3433 MODULE_DESCRIPTION("Generic Bluetooth USB driver ver " VERSION); 3434 MODULE_VERSION(VERSION); 3435 MODULE_LICENSE("GPL"); 3436