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/firmware.h> 27 #include <linux/of_device.h> 28 #include <linux/of_irq.h> 29 #include <linux/suspend.h> 30 #include <asm/unaligned.h> 31 32 #include <net/bluetooth/bluetooth.h> 33 #include <net/bluetooth/hci_core.h> 34 35 #include "btintel.h" 36 #include "btbcm.h" 37 #include "btrtl.h" 38 39 #define VERSION "0.8" 40 41 static bool disable_scofix; 42 static bool force_scofix; 43 44 static bool reset = true; 45 46 static struct usb_driver btusb_driver; 47 48 #define BTUSB_IGNORE 0x01 49 #define BTUSB_DIGIANSWER 0x02 50 #define BTUSB_CSR 0x04 51 #define BTUSB_SNIFFER 0x08 52 #define BTUSB_BCM92035 0x10 53 #define BTUSB_BROKEN_ISOC 0x20 54 #define BTUSB_WRONG_SCO_MTU 0x40 55 #define BTUSB_ATH3012 0x80 56 #define BTUSB_INTEL 0x100 57 #define BTUSB_INTEL_BOOT 0x200 58 #define BTUSB_BCM_PATCHRAM 0x400 59 #define BTUSB_MARVELL 0x800 60 #define BTUSB_SWAVE 0x1000 61 #define BTUSB_INTEL_NEW 0x2000 62 #define BTUSB_AMP 0x4000 63 #define BTUSB_QCA_ROME 0x8000 64 #define BTUSB_BCM_APPLE 0x10000 65 #define BTUSB_REALTEK 0x20000 66 #define BTUSB_BCM2045 0x40000 67 #define BTUSB_IFNUM_2 0x80000 68 #define BTUSB_CW6622 0x100000 69 70 static const struct usb_device_id btusb_table[] = { 71 /* Generic Bluetooth USB device */ 72 { USB_DEVICE_INFO(0xe0, 0x01, 0x01) }, 73 74 /* Generic Bluetooth AMP device */ 75 { USB_DEVICE_INFO(0xe0, 0x01, 0x04), .driver_info = BTUSB_AMP }, 76 77 /* Generic Bluetooth USB interface */ 78 { USB_INTERFACE_INFO(0xe0, 0x01, 0x01) }, 79 80 /* Apple-specific (Broadcom) devices */ 81 { USB_VENDOR_AND_INTERFACE_INFO(0x05ac, 0xff, 0x01, 0x01), 82 .driver_info = BTUSB_BCM_APPLE | BTUSB_IFNUM_2 }, 83 84 /* MediaTek MT76x0E */ 85 { USB_DEVICE(0x0e8d, 0x763f) }, 86 87 /* Broadcom SoftSailing reporting vendor specific */ 88 { USB_DEVICE(0x0a5c, 0x21e1) }, 89 90 /* Apple MacBookPro 7,1 */ 91 { USB_DEVICE(0x05ac, 0x8213) }, 92 93 /* Apple iMac11,1 */ 94 { USB_DEVICE(0x05ac, 0x8215) }, 95 96 /* Apple MacBookPro6,2 */ 97 { USB_DEVICE(0x05ac, 0x8218) }, 98 99 /* Apple MacBookAir3,1, MacBookAir3,2 */ 100 { USB_DEVICE(0x05ac, 0x821b) }, 101 102 /* Apple MacBookAir4,1 */ 103 { USB_DEVICE(0x05ac, 0x821f) }, 104 105 /* Apple MacBookPro8,2 */ 106 { USB_DEVICE(0x05ac, 0x821a) }, 107 108 /* Apple MacMini5,1 */ 109 { USB_DEVICE(0x05ac, 0x8281) }, 110 111 /* AVM BlueFRITZ! USB v2.0 */ 112 { USB_DEVICE(0x057c, 0x3800), .driver_info = BTUSB_SWAVE }, 113 114 /* Bluetooth Ultraport Module from IBM */ 115 { USB_DEVICE(0x04bf, 0x030a) }, 116 117 /* ALPS Modules with non-standard id */ 118 { USB_DEVICE(0x044e, 0x3001) }, 119 { USB_DEVICE(0x044e, 0x3002) }, 120 121 /* Ericsson with non-standard id */ 122 { USB_DEVICE(0x0bdb, 0x1002) }, 123 124 /* Canyon CN-BTU1 with HID interfaces */ 125 { USB_DEVICE(0x0c10, 0x0000) }, 126 127 /* Broadcom BCM20702A0 */ 128 { USB_DEVICE(0x413c, 0x8197) }, 129 130 /* Broadcom BCM20702B0 (Dynex/Insignia) */ 131 { USB_DEVICE(0x19ff, 0x0239), .driver_info = BTUSB_BCM_PATCHRAM }, 132 133 /* Broadcom BCM43142A0 (Foxconn/Lenovo) */ 134 { USB_VENDOR_AND_INTERFACE_INFO(0x105b, 0xff, 0x01, 0x01), 135 .driver_info = BTUSB_BCM_PATCHRAM }, 136 137 /* Broadcom BCM920703 (HTC Vive) */ 138 { USB_VENDOR_AND_INTERFACE_INFO(0x0bb4, 0xff, 0x01, 0x01), 139 .driver_info = BTUSB_BCM_PATCHRAM }, 140 141 /* Foxconn - Hon Hai */ 142 { USB_VENDOR_AND_INTERFACE_INFO(0x0489, 0xff, 0x01, 0x01), 143 .driver_info = BTUSB_BCM_PATCHRAM }, 144 145 /* Lite-On Technology - Broadcom based */ 146 { USB_VENDOR_AND_INTERFACE_INFO(0x04ca, 0xff, 0x01, 0x01), 147 .driver_info = BTUSB_BCM_PATCHRAM }, 148 149 /* Broadcom devices with vendor specific id */ 150 { USB_VENDOR_AND_INTERFACE_INFO(0x0a5c, 0xff, 0x01, 0x01), 151 .driver_info = BTUSB_BCM_PATCHRAM }, 152 153 /* ASUSTek Computer - Broadcom based */ 154 { USB_VENDOR_AND_INTERFACE_INFO(0x0b05, 0xff, 0x01, 0x01), 155 .driver_info = BTUSB_BCM_PATCHRAM }, 156 157 /* Belkin F8065bf - Broadcom based */ 158 { USB_VENDOR_AND_INTERFACE_INFO(0x050d, 0xff, 0x01, 0x01), 159 .driver_info = BTUSB_BCM_PATCHRAM }, 160 161 /* IMC Networks - Broadcom based */ 162 { USB_VENDOR_AND_INTERFACE_INFO(0x13d3, 0xff, 0x01, 0x01), 163 .driver_info = BTUSB_BCM_PATCHRAM }, 164 165 /* Dell Computer - Broadcom based */ 166 { USB_VENDOR_AND_INTERFACE_INFO(0x413c, 0xff, 0x01, 0x01), 167 .driver_info = BTUSB_BCM_PATCHRAM }, 168 169 /* Toshiba Corp - Broadcom based */ 170 { USB_VENDOR_AND_INTERFACE_INFO(0x0930, 0xff, 0x01, 0x01), 171 .driver_info = BTUSB_BCM_PATCHRAM }, 172 173 /* Intel Bluetooth USB Bootloader (RAM module) */ 174 { USB_DEVICE(0x8087, 0x0a5a), 175 .driver_info = BTUSB_INTEL_BOOT | BTUSB_BROKEN_ISOC }, 176 177 { } /* Terminating entry */ 178 }; 179 180 MODULE_DEVICE_TABLE(usb, btusb_table); 181 182 static const struct usb_device_id blacklist_table[] = { 183 /* CSR BlueCore devices */ 184 { USB_DEVICE(0x0a12, 0x0001), .driver_info = BTUSB_CSR }, 185 186 /* Broadcom BCM2033 without firmware */ 187 { USB_DEVICE(0x0a5c, 0x2033), .driver_info = BTUSB_IGNORE }, 188 189 /* Broadcom BCM2045 devices */ 190 { USB_DEVICE(0x0a5c, 0x2045), .driver_info = BTUSB_BCM2045 }, 191 192 /* Atheros 3011 with sflash firmware */ 193 { USB_DEVICE(0x0489, 0xe027), .driver_info = BTUSB_IGNORE }, 194 { USB_DEVICE(0x0489, 0xe03d), .driver_info = BTUSB_IGNORE }, 195 { USB_DEVICE(0x04f2, 0xaff1), .driver_info = BTUSB_IGNORE }, 196 { USB_DEVICE(0x0930, 0x0215), .driver_info = BTUSB_IGNORE }, 197 { USB_DEVICE(0x0cf3, 0x3002), .driver_info = BTUSB_IGNORE }, 198 { USB_DEVICE(0x0cf3, 0xe019), .driver_info = BTUSB_IGNORE }, 199 { USB_DEVICE(0x13d3, 0x3304), .driver_info = BTUSB_IGNORE }, 200 201 /* Atheros AR9285 Malbec with sflash firmware */ 202 { USB_DEVICE(0x03f0, 0x311d), .driver_info = BTUSB_IGNORE }, 203 204 /* Atheros 3012 with sflash firmware */ 205 { USB_DEVICE(0x0489, 0xe04d), .driver_info = BTUSB_ATH3012 }, 206 { USB_DEVICE(0x0489, 0xe04e), .driver_info = BTUSB_ATH3012 }, 207 { USB_DEVICE(0x0489, 0xe056), .driver_info = BTUSB_ATH3012 }, 208 { USB_DEVICE(0x0489, 0xe057), .driver_info = BTUSB_ATH3012 }, 209 { USB_DEVICE(0x0489, 0xe05f), .driver_info = BTUSB_ATH3012 }, 210 { USB_DEVICE(0x0489, 0xe076), .driver_info = BTUSB_ATH3012 }, 211 { USB_DEVICE(0x0489, 0xe078), .driver_info = BTUSB_ATH3012 }, 212 { USB_DEVICE(0x0489, 0xe095), .driver_info = BTUSB_ATH3012 }, 213 { USB_DEVICE(0x04c5, 0x1330), .driver_info = BTUSB_ATH3012 }, 214 { USB_DEVICE(0x04ca, 0x3004), .driver_info = BTUSB_ATH3012 }, 215 { USB_DEVICE(0x04ca, 0x3005), .driver_info = BTUSB_ATH3012 }, 216 { USB_DEVICE(0x04ca, 0x3006), .driver_info = BTUSB_ATH3012 }, 217 { USB_DEVICE(0x04ca, 0x3007), .driver_info = BTUSB_ATH3012 }, 218 { USB_DEVICE(0x04ca, 0x3008), .driver_info = BTUSB_ATH3012 }, 219 { USB_DEVICE(0x04ca, 0x300b), .driver_info = BTUSB_ATH3012 }, 220 { USB_DEVICE(0x04ca, 0x300d), .driver_info = BTUSB_ATH3012 }, 221 { USB_DEVICE(0x04ca, 0x300f), .driver_info = BTUSB_ATH3012 }, 222 { USB_DEVICE(0x04ca, 0x3010), .driver_info = BTUSB_ATH3012 }, 223 { USB_DEVICE(0x04ca, 0x3014), .driver_info = BTUSB_ATH3012 }, 224 { USB_DEVICE(0x04ca, 0x3018), .driver_info = BTUSB_ATH3012 }, 225 { USB_DEVICE(0x0930, 0x0219), .driver_info = BTUSB_ATH3012 }, 226 { USB_DEVICE(0x0930, 0x021c), .driver_info = BTUSB_ATH3012 }, 227 { USB_DEVICE(0x0930, 0x0220), .driver_info = BTUSB_ATH3012 }, 228 { USB_DEVICE(0x0930, 0x0227), .driver_info = BTUSB_ATH3012 }, 229 { USB_DEVICE(0x0b05, 0x17d0), .driver_info = BTUSB_ATH3012 }, 230 { USB_DEVICE(0x0cf3, 0x0036), .driver_info = BTUSB_ATH3012 }, 231 { USB_DEVICE(0x0cf3, 0x3004), .driver_info = BTUSB_ATH3012 }, 232 { USB_DEVICE(0x0cf3, 0x3008), .driver_info = BTUSB_ATH3012 }, 233 { USB_DEVICE(0x0cf3, 0x311d), .driver_info = BTUSB_ATH3012 }, 234 { USB_DEVICE(0x0cf3, 0x311e), .driver_info = BTUSB_ATH3012 }, 235 { USB_DEVICE(0x0cf3, 0x311f), .driver_info = BTUSB_ATH3012 }, 236 { USB_DEVICE(0x0cf3, 0x3121), .driver_info = BTUSB_ATH3012 }, 237 { USB_DEVICE(0x0cf3, 0x817a), .driver_info = BTUSB_ATH3012 }, 238 { USB_DEVICE(0x0cf3, 0x817b), .driver_info = BTUSB_ATH3012 }, 239 { USB_DEVICE(0x0cf3, 0xe003), .driver_info = BTUSB_ATH3012 }, 240 { USB_DEVICE(0x0cf3, 0xe004), .driver_info = BTUSB_ATH3012 }, 241 { USB_DEVICE(0x0cf3, 0xe005), .driver_info = BTUSB_ATH3012 }, 242 { USB_DEVICE(0x0cf3, 0xe006), .driver_info = BTUSB_ATH3012 }, 243 { USB_DEVICE(0x13d3, 0x3362), .driver_info = BTUSB_ATH3012 }, 244 { USB_DEVICE(0x13d3, 0x3375), .driver_info = BTUSB_ATH3012 }, 245 { USB_DEVICE(0x13d3, 0x3393), .driver_info = BTUSB_ATH3012 }, 246 { USB_DEVICE(0x13d3, 0x3395), .driver_info = BTUSB_ATH3012 }, 247 { USB_DEVICE(0x13d3, 0x3402), .driver_info = BTUSB_ATH3012 }, 248 { USB_DEVICE(0x13d3, 0x3408), .driver_info = BTUSB_ATH3012 }, 249 { USB_DEVICE(0x13d3, 0x3423), .driver_info = BTUSB_ATH3012 }, 250 { USB_DEVICE(0x13d3, 0x3432), .driver_info = BTUSB_ATH3012 }, 251 { USB_DEVICE(0x13d3, 0x3472), .driver_info = BTUSB_ATH3012 }, 252 { USB_DEVICE(0x13d3, 0x3474), .driver_info = BTUSB_ATH3012 }, 253 { USB_DEVICE(0x13d3, 0x3487), .driver_info = BTUSB_ATH3012 }, 254 { USB_DEVICE(0x13d3, 0x3490), .driver_info = BTUSB_ATH3012 }, 255 256 /* Atheros AR5BBU12 with sflash firmware */ 257 { USB_DEVICE(0x0489, 0xe02c), .driver_info = BTUSB_IGNORE }, 258 259 /* Atheros AR5BBU12 with sflash firmware */ 260 { USB_DEVICE(0x0489, 0xe036), .driver_info = BTUSB_ATH3012 }, 261 { USB_DEVICE(0x0489, 0xe03c), .driver_info = BTUSB_ATH3012 }, 262 263 /* QCA ROME chipset */ 264 { USB_DEVICE(0x0cf3, 0xe007), .driver_info = BTUSB_QCA_ROME }, 265 { USB_DEVICE(0x0cf3, 0xe009), .driver_info = BTUSB_QCA_ROME }, 266 { USB_DEVICE(0x0cf3, 0xe300), .driver_info = BTUSB_QCA_ROME }, 267 { USB_DEVICE(0x0cf3, 0xe301), .driver_info = BTUSB_QCA_ROME }, 268 { USB_DEVICE(0x0cf3, 0xe360), .driver_info = BTUSB_QCA_ROME }, 269 { USB_DEVICE(0x0489, 0xe092), .driver_info = BTUSB_QCA_ROME }, 270 { USB_DEVICE(0x0489, 0xe0a2), .driver_info = BTUSB_QCA_ROME }, 271 { USB_DEVICE(0x04ca, 0x3011), .driver_info = BTUSB_QCA_ROME }, 272 { USB_DEVICE(0x04ca, 0x3016), .driver_info = BTUSB_QCA_ROME }, 273 274 /* Broadcom BCM2035 */ 275 { USB_DEVICE(0x0a5c, 0x2009), .driver_info = BTUSB_BCM92035 }, 276 { USB_DEVICE(0x0a5c, 0x200a), .driver_info = BTUSB_WRONG_SCO_MTU }, 277 { USB_DEVICE(0x0a5c, 0x2035), .driver_info = BTUSB_WRONG_SCO_MTU }, 278 279 /* Broadcom BCM2045 */ 280 { USB_DEVICE(0x0a5c, 0x2039), .driver_info = BTUSB_WRONG_SCO_MTU }, 281 { USB_DEVICE(0x0a5c, 0x2101), .driver_info = BTUSB_WRONG_SCO_MTU }, 282 283 /* IBM/Lenovo ThinkPad with Broadcom chip */ 284 { USB_DEVICE(0x0a5c, 0x201e), .driver_info = BTUSB_WRONG_SCO_MTU }, 285 { USB_DEVICE(0x0a5c, 0x2110), .driver_info = BTUSB_WRONG_SCO_MTU }, 286 287 /* HP laptop with Broadcom chip */ 288 { USB_DEVICE(0x03f0, 0x171d), .driver_info = BTUSB_WRONG_SCO_MTU }, 289 290 /* Dell laptop with Broadcom chip */ 291 { USB_DEVICE(0x413c, 0x8126), .driver_info = BTUSB_WRONG_SCO_MTU }, 292 293 /* Dell Wireless 370 and 410 devices */ 294 { USB_DEVICE(0x413c, 0x8152), .driver_info = BTUSB_WRONG_SCO_MTU }, 295 { USB_DEVICE(0x413c, 0x8156), .driver_info = BTUSB_WRONG_SCO_MTU }, 296 297 /* Belkin F8T012 and F8T013 devices */ 298 { USB_DEVICE(0x050d, 0x0012), .driver_info = BTUSB_WRONG_SCO_MTU }, 299 { USB_DEVICE(0x050d, 0x0013), .driver_info = BTUSB_WRONG_SCO_MTU }, 300 301 /* Asus WL-BTD202 device */ 302 { USB_DEVICE(0x0b05, 0x1715), .driver_info = BTUSB_WRONG_SCO_MTU }, 303 304 /* Kensington Bluetooth USB adapter */ 305 { USB_DEVICE(0x047d, 0x105e), .driver_info = BTUSB_WRONG_SCO_MTU }, 306 307 /* RTX Telecom based adapters with buggy SCO support */ 308 { USB_DEVICE(0x0400, 0x0807), .driver_info = BTUSB_BROKEN_ISOC }, 309 { USB_DEVICE(0x0400, 0x080a), .driver_info = BTUSB_BROKEN_ISOC }, 310 311 /* CONWISE Technology based adapters with buggy SCO support */ 312 { USB_DEVICE(0x0e5e, 0x6622), 313 .driver_info = BTUSB_BROKEN_ISOC | BTUSB_CW6622}, 314 315 /* Roper Class 1 Bluetooth Dongle (Silicon Wave based) */ 316 { USB_DEVICE(0x1310, 0x0001), .driver_info = BTUSB_SWAVE }, 317 318 /* Digianswer devices */ 319 { USB_DEVICE(0x08fd, 0x0001), .driver_info = BTUSB_DIGIANSWER }, 320 { USB_DEVICE(0x08fd, 0x0002), .driver_info = BTUSB_IGNORE }, 321 322 /* CSR BlueCore Bluetooth Sniffer */ 323 { USB_DEVICE(0x0a12, 0x0002), 324 .driver_info = BTUSB_SNIFFER | BTUSB_BROKEN_ISOC }, 325 326 /* Frontline ComProbe Bluetooth Sniffer */ 327 { USB_DEVICE(0x16d3, 0x0002), 328 .driver_info = BTUSB_SNIFFER | BTUSB_BROKEN_ISOC }, 329 330 /* Marvell Bluetooth devices */ 331 { USB_DEVICE(0x1286, 0x2044), .driver_info = BTUSB_MARVELL }, 332 { USB_DEVICE(0x1286, 0x2046), .driver_info = BTUSB_MARVELL }, 333 { USB_DEVICE(0x1286, 0x204e), .driver_info = BTUSB_MARVELL }, 334 335 /* Intel Bluetooth devices */ 336 { USB_DEVICE(0x8087, 0x0025), .driver_info = BTUSB_INTEL_NEW }, 337 { USB_DEVICE(0x8087, 0x07da), .driver_info = BTUSB_CSR }, 338 { USB_DEVICE(0x8087, 0x07dc), .driver_info = BTUSB_INTEL }, 339 { USB_DEVICE(0x8087, 0x0a2a), .driver_info = BTUSB_INTEL }, 340 { USB_DEVICE(0x8087, 0x0a2b), .driver_info = BTUSB_INTEL_NEW }, 341 { USB_DEVICE(0x8087, 0x0aa7), .driver_info = BTUSB_INTEL }, 342 { USB_DEVICE(0x8087, 0x0aaa), .driver_info = BTUSB_INTEL_NEW }, 343 344 /* Other Intel Bluetooth devices */ 345 { USB_VENDOR_AND_INTERFACE_INFO(0x8087, 0xe0, 0x01, 0x01), 346 .driver_info = BTUSB_IGNORE }, 347 348 /* Realtek Bluetooth devices */ 349 { USB_VENDOR_AND_INTERFACE_INFO(0x0bda, 0xe0, 0x01, 0x01), 350 .driver_info = BTUSB_REALTEK }, 351 352 /* Additional Realtek 8723AE Bluetooth devices */ 353 { USB_DEVICE(0x0930, 0x021d), .driver_info = BTUSB_REALTEK }, 354 { USB_DEVICE(0x13d3, 0x3394), .driver_info = BTUSB_REALTEK }, 355 356 /* Additional Realtek 8723BE Bluetooth devices */ 357 { USB_DEVICE(0x0489, 0xe085), .driver_info = BTUSB_REALTEK }, 358 { USB_DEVICE(0x0489, 0xe08b), .driver_info = BTUSB_REALTEK }, 359 { USB_DEVICE(0x13d3, 0x3410), .driver_info = BTUSB_REALTEK }, 360 { USB_DEVICE(0x13d3, 0x3416), .driver_info = BTUSB_REALTEK }, 361 { USB_DEVICE(0x13d3, 0x3459), .driver_info = BTUSB_REALTEK }, 362 { USB_DEVICE(0x13d3, 0x3494), .driver_info = BTUSB_REALTEK }, 363 364 /* Additional Realtek 8821AE Bluetooth devices */ 365 { USB_DEVICE(0x0b05, 0x17dc), .driver_info = BTUSB_REALTEK }, 366 { USB_DEVICE(0x13d3, 0x3414), .driver_info = BTUSB_REALTEK }, 367 { USB_DEVICE(0x13d3, 0x3458), .driver_info = BTUSB_REALTEK }, 368 { USB_DEVICE(0x13d3, 0x3461), .driver_info = BTUSB_REALTEK }, 369 { USB_DEVICE(0x13d3, 0x3462), .driver_info = BTUSB_REALTEK }, 370 371 /* Silicon Wave based devices */ 372 { USB_DEVICE(0x0c10, 0x0000), .driver_info = BTUSB_SWAVE }, 373 374 { } /* Terminating entry */ 375 }; 376 377 #define BTUSB_MAX_ISOC_FRAMES 10 378 379 #define BTUSB_INTR_RUNNING 0 380 #define BTUSB_BULK_RUNNING 1 381 #define BTUSB_ISOC_RUNNING 2 382 #define BTUSB_SUSPENDING 3 383 #define BTUSB_DID_ISO_RESUME 4 384 #define BTUSB_BOOTLOADER 5 385 #define BTUSB_DOWNLOADING 6 386 #define BTUSB_FIRMWARE_LOADED 7 387 #define BTUSB_FIRMWARE_FAILED 8 388 #define BTUSB_BOOTING 9 389 #define BTUSB_RESET_RESUME 10 390 #define BTUSB_DIAG_RUNNING 11 391 #define BTUSB_OOB_WAKE_ENABLED 12 392 393 struct btusb_data { 394 struct hci_dev *hdev; 395 struct usb_device *udev; 396 struct usb_interface *intf; 397 struct usb_interface *isoc; 398 struct usb_interface *diag; 399 400 unsigned long flags; 401 402 struct work_struct work; 403 struct work_struct waker; 404 405 struct usb_anchor deferred; 406 struct usb_anchor tx_anchor; 407 int tx_in_flight; 408 spinlock_t txlock; 409 410 struct usb_anchor intr_anchor; 411 struct usb_anchor bulk_anchor; 412 struct usb_anchor isoc_anchor; 413 struct usb_anchor diag_anchor; 414 spinlock_t rxlock; 415 416 struct sk_buff *evt_skb; 417 struct sk_buff *acl_skb; 418 struct sk_buff *sco_skb; 419 420 struct usb_endpoint_descriptor *intr_ep; 421 struct usb_endpoint_descriptor *bulk_tx_ep; 422 struct usb_endpoint_descriptor *bulk_rx_ep; 423 struct usb_endpoint_descriptor *isoc_tx_ep; 424 struct usb_endpoint_descriptor *isoc_rx_ep; 425 struct usb_endpoint_descriptor *diag_tx_ep; 426 struct usb_endpoint_descriptor *diag_rx_ep; 427 428 __u8 cmdreq_type; 429 __u8 cmdreq; 430 431 unsigned int sco_num; 432 int isoc_altsetting; 433 int suspend_count; 434 435 int (*recv_event)(struct hci_dev *hdev, struct sk_buff *skb); 436 int (*recv_bulk)(struct btusb_data *data, void *buffer, int count); 437 438 int (*setup_on_usb)(struct hci_dev *hdev); 439 440 int oob_wake_irq; /* irq for out-of-band wake-on-bt */ 441 }; 442 443 static inline void btusb_free_frags(struct btusb_data *data) 444 { 445 unsigned long flags; 446 447 spin_lock_irqsave(&data->rxlock, flags); 448 449 kfree_skb(data->evt_skb); 450 data->evt_skb = NULL; 451 452 kfree_skb(data->acl_skb); 453 data->acl_skb = NULL; 454 455 kfree_skb(data->sco_skb); 456 data->sco_skb = NULL; 457 458 spin_unlock_irqrestore(&data->rxlock, flags); 459 } 460 461 static int btusb_recv_intr(struct btusb_data *data, void *buffer, int count) 462 { 463 struct sk_buff *skb; 464 int err = 0; 465 466 spin_lock(&data->rxlock); 467 skb = data->evt_skb; 468 469 while (count) { 470 int len; 471 472 if (!skb) { 473 skb = bt_skb_alloc(HCI_MAX_EVENT_SIZE, GFP_ATOMIC); 474 if (!skb) { 475 err = -ENOMEM; 476 break; 477 } 478 479 hci_skb_pkt_type(skb) = HCI_EVENT_PKT; 480 hci_skb_expect(skb) = HCI_EVENT_HDR_SIZE; 481 } 482 483 len = min_t(uint, hci_skb_expect(skb), count); 484 skb_put_data(skb, buffer, len); 485 486 count -= len; 487 buffer += len; 488 hci_skb_expect(skb) -= len; 489 490 if (skb->len == HCI_EVENT_HDR_SIZE) { 491 /* Complete event header */ 492 hci_skb_expect(skb) = hci_event_hdr(skb)->plen; 493 494 if (skb_tailroom(skb) < hci_skb_expect(skb)) { 495 kfree_skb(skb); 496 skb = NULL; 497 498 err = -EILSEQ; 499 break; 500 } 501 } 502 503 if (!hci_skb_expect(skb)) { 504 /* Complete frame */ 505 data->recv_event(data->hdev, skb); 506 skb = NULL; 507 } 508 } 509 510 data->evt_skb = skb; 511 spin_unlock(&data->rxlock); 512 513 return err; 514 } 515 516 static int btusb_recv_bulk(struct btusb_data *data, void *buffer, int count) 517 { 518 struct sk_buff *skb; 519 int err = 0; 520 521 spin_lock(&data->rxlock); 522 skb = data->acl_skb; 523 524 while (count) { 525 int len; 526 527 if (!skb) { 528 skb = bt_skb_alloc(HCI_MAX_FRAME_SIZE, GFP_ATOMIC); 529 if (!skb) { 530 err = -ENOMEM; 531 break; 532 } 533 534 hci_skb_pkt_type(skb) = HCI_ACLDATA_PKT; 535 hci_skb_expect(skb) = HCI_ACL_HDR_SIZE; 536 } 537 538 len = min_t(uint, hci_skb_expect(skb), count); 539 skb_put_data(skb, buffer, len); 540 541 count -= len; 542 buffer += len; 543 hci_skb_expect(skb) -= len; 544 545 if (skb->len == HCI_ACL_HDR_SIZE) { 546 __le16 dlen = hci_acl_hdr(skb)->dlen; 547 548 /* Complete ACL header */ 549 hci_skb_expect(skb) = __le16_to_cpu(dlen); 550 551 if (skb_tailroom(skb) < hci_skb_expect(skb)) { 552 kfree_skb(skb); 553 skb = NULL; 554 555 err = -EILSEQ; 556 break; 557 } 558 } 559 560 if (!hci_skb_expect(skb)) { 561 /* Complete frame */ 562 hci_recv_frame(data->hdev, skb); 563 skb = NULL; 564 } 565 } 566 567 data->acl_skb = skb; 568 spin_unlock(&data->rxlock); 569 570 return err; 571 } 572 573 static int btusb_recv_isoc(struct btusb_data *data, void *buffer, int count) 574 { 575 struct sk_buff *skb; 576 int err = 0; 577 578 spin_lock(&data->rxlock); 579 skb = data->sco_skb; 580 581 while (count) { 582 int len; 583 584 if (!skb) { 585 skb = bt_skb_alloc(HCI_MAX_SCO_SIZE, GFP_ATOMIC); 586 if (!skb) { 587 err = -ENOMEM; 588 break; 589 } 590 591 hci_skb_pkt_type(skb) = HCI_SCODATA_PKT; 592 hci_skb_expect(skb) = HCI_SCO_HDR_SIZE; 593 } 594 595 len = min_t(uint, hci_skb_expect(skb), count); 596 skb_put_data(skb, buffer, len); 597 598 count -= len; 599 buffer += len; 600 hci_skb_expect(skb) -= len; 601 602 if (skb->len == HCI_SCO_HDR_SIZE) { 603 /* Complete SCO header */ 604 hci_skb_expect(skb) = hci_sco_hdr(skb)->dlen; 605 606 if (skb_tailroom(skb) < hci_skb_expect(skb)) { 607 kfree_skb(skb); 608 skb = NULL; 609 610 err = -EILSEQ; 611 break; 612 } 613 } 614 615 if (!hci_skb_expect(skb)) { 616 /* Complete frame */ 617 hci_recv_frame(data->hdev, skb); 618 skb = NULL; 619 } 620 } 621 622 data->sco_skb = skb; 623 spin_unlock(&data->rxlock); 624 625 return err; 626 } 627 628 static void btusb_intr_complete(struct urb *urb) 629 { 630 struct hci_dev *hdev = urb->context; 631 struct btusb_data *data = hci_get_drvdata(hdev); 632 int err; 633 634 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status, 635 urb->actual_length); 636 637 if (!test_bit(HCI_RUNNING, &hdev->flags)) 638 return; 639 640 if (urb->status == 0) { 641 hdev->stat.byte_rx += urb->actual_length; 642 643 if (btusb_recv_intr(data, urb->transfer_buffer, 644 urb->actual_length) < 0) { 645 BT_ERR("%s corrupted event packet", hdev->name); 646 hdev->stat.err_rx++; 647 } 648 } else if (urb->status == -ENOENT) { 649 /* Avoid suspend failed when usb_kill_urb */ 650 return; 651 } 652 653 if (!test_bit(BTUSB_INTR_RUNNING, &data->flags)) 654 return; 655 656 usb_mark_last_busy(data->udev); 657 usb_anchor_urb(urb, &data->intr_anchor); 658 659 err = usb_submit_urb(urb, GFP_ATOMIC); 660 if (err < 0) { 661 /* -EPERM: urb is being killed; 662 * -ENODEV: device got disconnected 663 */ 664 if (err != -EPERM && err != -ENODEV) 665 BT_ERR("%s urb %p failed to resubmit (%d)", 666 hdev->name, urb, -err); 667 usb_unanchor_urb(urb); 668 } 669 } 670 671 static int btusb_submit_intr_urb(struct hci_dev *hdev, gfp_t mem_flags) 672 { 673 struct btusb_data *data = hci_get_drvdata(hdev); 674 struct urb *urb; 675 unsigned char *buf; 676 unsigned int pipe; 677 int err, size; 678 679 BT_DBG("%s", hdev->name); 680 681 if (!data->intr_ep) 682 return -ENODEV; 683 684 urb = usb_alloc_urb(0, mem_flags); 685 if (!urb) 686 return -ENOMEM; 687 688 size = le16_to_cpu(data->intr_ep->wMaxPacketSize); 689 690 buf = kmalloc(size, mem_flags); 691 if (!buf) { 692 usb_free_urb(urb); 693 return -ENOMEM; 694 } 695 696 pipe = usb_rcvintpipe(data->udev, data->intr_ep->bEndpointAddress); 697 698 usb_fill_int_urb(urb, data->udev, pipe, buf, size, 699 btusb_intr_complete, hdev, data->intr_ep->bInterval); 700 701 urb->transfer_flags |= URB_FREE_BUFFER; 702 703 usb_anchor_urb(urb, &data->intr_anchor); 704 705 err = usb_submit_urb(urb, mem_flags); 706 if (err < 0) { 707 if (err != -EPERM && err != -ENODEV) 708 BT_ERR("%s urb %p submission failed (%d)", 709 hdev->name, urb, -err); 710 usb_unanchor_urb(urb); 711 } 712 713 usb_free_urb(urb); 714 715 return err; 716 } 717 718 static void btusb_bulk_complete(struct urb *urb) 719 { 720 struct hci_dev *hdev = urb->context; 721 struct btusb_data *data = hci_get_drvdata(hdev); 722 int err; 723 724 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status, 725 urb->actual_length); 726 727 if (!test_bit(HCI_RUNNING, &hdev->flags)) 728 return; 729 730 if (urb->status == 0) { 731 hdev->stat.byte_rx += urb->actual_length; 732 733 if (data->recv_bulk(data, urb->transfer_buffer, 734 urb->actual_length) < 0) { 735 BT_ERR("%s corrupted ACL packet", hdev->name); 736 hdev->stat.err_rx++; 737 } 738 } else if (urb->status == -ENOENT) { 739 /* Avoid suspend failed when usb_kill_urb */ 740 return; 741 } 742 743 if (!test_bit(BTUSB_BULK_RUNNING, &data->flags)) 744 return; 745 746 usb_anchor_urb(urb, &data->bulk_anchor); 747 usb_mark_last_busy(data->udev); 748 749 err = usb_submit_urb(urb, GFP_ATOMIC); 750 if (err < 0) { 751 /* -EPERM: urb is being killed; 752 * -ENODEV: device got disconnected 753 */ 754 if (err != -EPERM && err != -ENODEV) 755 BT_ERR("%s urb %p failed to resubmit (%d)", 756 hdev->name, urb, -err); 757 usb_unanchor_urb(urb); 758 } 759 } 760 761 static int btusb_submit_bulk_urb(struct hci_dev *hdev, gfp_t mem_flags) 762 { 763 struct btusb_data *data = hci_get_drvdata(hdev); 764 struct urb *urb; 765 unsigned char *buf; 766 unsigned int pipe; 767 int err, size = HCI_MAX_FRAME_SIZE; 768 769 BT_DBG("%s", hdev->name); 770 771 if (!data->bulk_rx_ep) 772 return -ENODEV; 773 774 urb = usb_alloc_urb(0, mem_flags); 775 if (!urb) 776 return -ENOMEM; 777 778 buf = kmalloc(size, mem_flags); 779 if (!buf) { 780 usb_free_urb(urb); 781 return -ENOMEM; 782 } 783 784 pipe = usb_rcvbulkpipe(data->udev, data->bulk_rx_ep->bEndpointAddress); 785 786 usb_fill_bulk_urb(urb, data->udev, pipe, buf, size, 787 btusb_bulk_complete, hdev); 788 789 urb->transfer_flags |= URB_FREE_BUFFER; 790 791 usb_mark_last_busy(data->udev); 792 usb_anchor_urb(urb, &data->bulk_anchor); 793 794 err = usb_submit_urb(urb, mem_flags); 795 if (err < 0) { 796 if (err != -EPERM && err != -ENODEV) 797 BT_ERR("%s urb %p submission failed (%d)", 798 hdev->name, urb, -err); 799 usb_unanchor_urb(urb); 800 } 801 802 usb_free_urb(urb); 803 804 return err; 805 } 806 807 static void btusb_isoc_complete(struct urb *urb) 808 { 809 struct hci_dev *hdev = urb->context; 810 struct btusb_data *data = hci_get_drvdata(hdev); 811 int i, err; 812 813 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status, 814 urb->actual_length); 815 816 if (!test_bit(HCI_RUNNING, &hdev->flags)) 817 return; 818 819 if (urb->status == 0) { 820 for (i = 0; i < urb->number_of_packets; i++) { 821 unsigned int offset = urb->iso_frame_desc[i].offset; 822 unsigned int length = urb->iso_frame_desc[i].actual_length; 823 824 if (urb->iso_frame_desc[i].status) 825 continue; 826 827 hdev->stat.byte_rx += length; 828 829 if (btusb_recv_isoc(data, urb->transfer_buffer + offset, 830 length) < 0) { 831 BT_ERR("%s corrupted SCO packet", hdev->name); 832 hdev->stat.err_rx++; 833 } 834 } 835 } else if (urb->status == -ENOENT) { 836 /* Avoid suspend failed when usb_kill_urb */ 837 return; 838 } 839 840 if (!test_bit(BTUSB_ISOC_RUNNING, &data->flags)) 841 return; 842 843 usb_anchor_urb(urb, &data->isoc_anchor); 844 845 err = usb_submit_urb(urb, GFP_ATOMIC); 846 if (err < 0) { 847 /* -EPERM: urb is being killed; 848 * -ENODEV: device got disconnected 849 */ 850 if (err != -EPERM && err != -ENODEV) 851 BT_ERR("%s urb %p failed to resubmit (%d)", 852 hdev->name, urb, -err); 853 usb_unanchor_urb(urb); 854 } 855 } 856 857 static inline void __fill_isoc_descriptor(struct urb *urb, int len, int mtu) 858 { 859 int i, offset = 0; 860 861 BT_DBG("len %d mtu %d", len, mtu); 862 863 for (i = 0; i < BTUSB_MAX_ISOC_FRAMES && len >= mtu; 864 i++, offset += mtu, len -= mtu) { 865 urb->iso_frame_desc[i].offset = offset; 866 urb->iso_frame_desc[i].length = mtu; 867 } 868 869 if (len && i < BTUSB_MAX_ISOC_FRAMES) { 870 urb->iso_frame_desc[i].offset = offset; 871 urb->iso_frame_desc[i].length = len; 872 i++; 873 } 874 875 urb->number_of_packets = i; 876 } 877 878 static int btusb_submit_isoc_urb(struct hci_dev *hdev, gfp_t mem_flags) 879 { 880 struct btusb_data *data = hci_get_drvdata(hdev); 881 struct urb *urb; 882 unsigned char *buf; 883 unsigned int pipe; 884 int err, size; 885 886 BT_DBG("%s", hdev->name); 887 888 if (!data->isoc_rx_ep) 889 return -ENODEV; 890 891 urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, mem_flags); 892 if (!urb) 893 return -ENOMEM; 894 895 size = le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize) * 896 BTUSB_MAX_ISOC_FRAMES; 897 898 buf = kmalloc(size, mem_flags); 899 if (!buf) { 900 usb_free_urb(urb); 901 return -ENOMEM; 902 } 903 904 pipe = usb_rcvisocpipe(data->udev, data->isoc_rx_ep->bEndpointAddress); 905 906 usb_fill_int_urb(urb, data->udev, pipe, buf, size, btusb_isoc_complete, 907 hdev, data->isoc_rx_ep->bInterval); 908 909 urb->transfer_flags = URB_FREE_BUFFER | URB_ISO_ASAP; 910 911 __fill_isoc_descriptor(urb, size, 912 le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize)); 913 914 usb_anchor_urb(urb, &data->isoc_anchor); 915 916 err = usb_submit_urb(urb, mem_flags); 917 if (err < 0) { 918 if (err != -EPERM && err != -ENODEV) 919 BT_ERR("%s urb %p submission failed (%d)", 920 hdev->name, urb, -err); 921 usb_unanchor_urb(urb); 922 } 923 924 usb_free_urb(urb); 925 926 return err; 927 } 928 929 static void btusb_diag_complete(struct urb *urb) 930 { 931 struct hci_dev *hdev = urb->context; 932 struct btusb_data *data = hci_get_drvdata(hdev); 933 int err; 934 935 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status, 936 urb->actual_length); 937 938 if (urb->status == 0) { 939 struct sk_buff *skb; 940 941 skb = bt_skb_alloc(urb->actual_length, GFP_ATOMIC); 942 if (skb) { 943 skb_put_data(skb, urb->transfer_buffer, 944 urb->actual_length); 945 hci_recv_diag(hdev, skb); 946 } 947 } else if (urb->status == -ENOENT) { 948 /* Avoid suspend failed when usb_kill_urb */ 949 return; 950 } 951 952 if (!test_bit(BTUSB_DIAG_RUNNING, &data->flags)) 953 return; 954 955 usb_anchor_urb(urb, &data->diag_anchor); 956 usb_mark_last_busy(data->udev); 957 958 err = usb_submit_urb(urb, GFP_ATOMIC); 959 if (err < 0) { 960 /* -EPERM: urb is being killed; 961 * -ENODEV: device got disconnected 962 */ 963 if (err != -EPERM && err != -ENODEV) 964 BT_ERR("%s urb %p failed to resubmit (%d)", 965 hdev->name, urb, -err); 966 usb_unanchor_urb(urb); 967 } 968 } 969 970 static int btusb_submit_diag_urb(struct hci_dev *hdev, gfp_t mem_flags) 971 { 972 struct btusb_data *data = hci_get_drvdata(hdev); 973 struct urb *urb; 974 unsigned char *buf; 975 unsigned int pipe; 976 int err, size = HCI_MAX_FRAME_SIZE; 977 978 BT_DBG("%s", hdev->name); 979 980 if (!data->diag_rx_ep) 981 return -ENODEV; 982 983 urb = usb_alloc_urb(0, mem_flags); 984 if (!urb) 985 return -ENOMEM; 986 987 buf = kmalloc(size, mem_flags); 988 if (!buf) { 989 usb_free_urb(urb); 990 return -ENOMEM; 991 } 992 993 pipe = usb_rcvbulkpipe(data->udev, data->diag_rx_ep->bEndpointAddress); 994 995 usb_fill_bulk_urb(urb, data->udev, pipe, buf, size, 996 btusb_diag_complete, hdev); 997 998 urb->transfer_flags |= URB_FREE_BUFFER; 999 1000 usb_mark_last_busy(data->udev); 1001 usb_anchor_urb(urb, &data->diag_anchor); 1002 1003 err = usb_submit_urb(urb, mem_flags); 1004 if (err < 0) { 1005 if (err != -EPERM && err != -ENODEV) 1006 BT_ERR("%s urb %p submission failed (%d)", 1007 hdev->name, urb, -err); 1008 usb_unanchor_urb(urb); 1009 } 1010 1011 usb_free_urb(urb); 1012 1013 return err; 1014 } 1015 1016 static void btusb_tx_complete(struct urb *urb) 1017 { 1018 struct sk_buff *skb = urb->context; 1019 struct hci_dev *hdev = (struct hci_dev *)skb->dev; 1020 struct btusb_data *data = hci_get_drvdata(hdev); 1021 1022 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status, 1023 urb->actual_length); 1024 1025 if (!test_bit(HCI_RUNNING, &hdev->flags)) 1026 goto done; 1027 1028 if (!urb->status) 1029 hdev->stat.byte_tx += urb->transfer_buffer_length; 1030 else 1031 hdev->stat.err_tx++; 1032 1033 done: 1034 spin_lock(&data->txlock); 1035 data->tx_in_flight--; 1036 spin_unlock(&data->txlock); 1037 1038 kfree(urb->setup_packet); 1039 1040 kfree_skb(skb); 1041 } 1042 1043 static void btusb_isoc_tx_complete(struct urb *urb) 1044 { 1045 struct sk_buff *skb = urb->context; 1046 struct hci_dev *hdev = (struct hci_dev *)skb->dev; 1047 1048 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status, 1049 urb->actual_length); 1050 1051 if (!test_bit(HCI_RUNNING, &hdev->flags)) 1052 goto done; 1053 1054 if (!urb->status) 1055 hdev->stat.byte_tx += urb->transfer_buffer_length; 1056 else 1057 hdev->stat.err_tx++; 1058 1059 done: 1060 kfree(urb->setup_packet); 1061 1062 kfree_skb(skb); 1063 } 1064 1065 static int btusb_open(struct hci_dev *hdev) 1066 { 1067 struct btusb_data *data = hci_get_drvdata(hdev); 1068 int err; 1069 1070 BT_DBG("%s", hdev->name); 1071 1072 err = usb_autopm_get_interface(data->intf); 1073 if (err < 0) 1074 return err; 1075 1076 /* Patching USB firmware files prior to starting any URBs of HCI path 1077 * It is more safe to use USB bulk channel for downloading USB patch 1078 */ 1079 if (data->setup_on_usb) { 1080 err = data->setup_on_usb(hdev); 1081 if (err < 0) 1082 return err; 1083 } 1084 1085 data->intf->needs_remote_wakeup = 1; 1086 /* device specific wakeup source enabled and required for USB 1087 * remote wakeup while host is suspended 1088 */ 1089 device_wakeup_enable(&data->udev->dev); 1090 1091 if (test_and_set_bit(BTUSB_INTR_RUNNING, &data->flags)) 1092 goto done; 1093 1094 err = btusb_submit_intr_urb(hdev, GFP_KERNEL); 1095 if (err < 0) 1096 goto failed; 1097 1098 err = btusb_submit_bulk_urb(hdev, GFP_KERNEL); 1099 if (err < 0) { 1100 usb_kill_anchored_urbs(&data->intr_anchor); 1101 goto failed; 1102 } 1103 1104 set_bit(BTUSB_BULK_RUNNING, &data->flags); 1105 btusb_submit_bulk_urb(hdev, GFP_KERNEL); 1106 1107 if (data->diag) { 1108 if (!btusb_submit_diag_urb(hdev, GFP_KERNEL)) 1109 set_bit(BTUSB_DIAG_RUNNING, &data->flags); 1110 } 1111 1112 done: 1113 usb_autopm_put_interface(data->intf); 1114 return 0; 1115 1116 failed: 1117 clear_bit(BTUSB_INTR_RUNNING, &data->flags); 1118 usb_autopm_put_interface(data->intf); 1119 return err; 1120 } 1121 1122 static void btusb_stop_traffic(struct btusb_data *data) 1123 { 1124 usb_kill_anchored_urbs(&data->intr_anchor); 1125 usb_kill_anchored_urbs(&data->bulk_anchor); 1126 usb_kill_anchored_urbs(&data->isoc_anchor); 1127 usb_kill_anchored_urbs(&data->diag_anchor); 1128 } 1129 1130 static int btusb_close(struct hci_dev *hdev) 1131 { 1132 struct btusb_data *data = hci_get_drvdata(hdev); 1133 int err; 1134 1135 BT_DBG("%s", hdev->name); 1136 1137 cancel_work_sync(&data->work); 1138 cancel_work_sync(&data->waker); 1139 1140 clear_bit(BTUSB_ISOC_RUNNING, &data->flags); 1141 clear_bit(BTUSB_BULK_RUNNING, &data->flags); 1142 clear_bit(BTUSB_INTR_RUNNING, &data->flags); 1143 clear_bit(BTUSB_DIAG_RUNNING, &data->flags); 1144 1145 btusb_stop_traffic(data); 1146 btusb_free_frags(data); 1147 1148 err = usb_autopm_get_interface(data->intf); 1149 if (err < 0) 1150 goto failed; 1151 1152 data->intf->needs_remote_wakeup = 0; 1153 device_wakeup_disable(&data->udev->dev); 1154 usb_autopm_put_interface(data->intf); 1155 1156 failed: 1157 usb_scuttle_anchored_urbs(&data->deferred); 1158 return 0; 1159 } 1160 1161 static int btusb_flush(struct hci_dev *hdev) 1162 { 1163 struct btusb_data *data = hci_get_drvdata(hdev); 1164 1165 BT_DBG("%s", hdev->name); 1166 1167 usb_kill_anchored_urbs(&data->tx_anchor); 1168 btusb_free_frags(data); 1169 1170 return 0; 1171 } 1172 1173 static struct urb *alloc_ctrl_urb(struct hci_dev *hdev, struct sk_buff *skb) 1174 { 1175 struct btusb_data *data = hci_get_drvdata(hdev); 1176 struct usb_ctrlrequest *dr; 1177 struct urb *urb; 1178 unsigned int pipe; 1179 1180 urb = usb_alloc_urb(0, GFP_KERNEL); 1181 if (!urb) 1182 return ERR_PTR(-ENOMEM); 1183 1184 dr = kmalloc(sizeof(*dr), GFP_KERNEL); 1185 if (!dr) { 1186 usb_free_urb(urb); 1187 return ERR_PTR(-ENOMEM); 1188 } 1189 1190 dr->bRequestType = data->cmdreq_type; 1191 dr->bRequest = data->cmdreq; 1192 dr->wIndex = 0; 1193 dr->wValue = 0; 1194 dr->wLength = __cpu_to_le16(skb->len); 1195 1196 pipe = usb_sndctrlpipe(data->udev, 0x00); 1197 1198 usb_fill_control_urb(urb, data->udev, pipe, (void *)dr, 1199 skb->data, skb->len, btusb_tx_complete, skb); 1200 1201 skb->dev = (void *)hdev; 1202 1203 return urb; 1204 } 1205 1206 static struct urb *alloc_bulk_urb(struct hci_dev *hdev, struct sk_buff *skb) 1207 { 1208 struct btusb_data *data = hci_get_drvdata(hdev); 1209 struct urb *urb; 1210 unsigned int pipe; 1211 1212 if (!data->bulk_tx_ep) 1213 return ERR_PTR(-ENODEV); 1214 1215 urb = usb_alloc_urb(0, GFP_KERNEL); 1216 if (!urb) 1217 return ERR_PTR(-ENOMEM); 1218 1219 pipe = usb_sndbulkpipe(data->udev, data->bulk_tx_ep->bEndpointAddress); 1220 1221 usb_fill_bulk_urb(urb, data->udev, pipe, 1222 skb->data, skb->len, btusb_tx_complete, skb); 1223 1224 skb->dev = (void *)hdev; 1225 1226 return urb; 1227 } 1228 1229 static struct urb *alloc_isoc_urb(struct hci_dev *hdev, struct sk_buff *skb) 1230 { 1231 struct btusb_data *data = hci_get_drvdata(hdev); 1232 struct urb *urb; 1233 unsigned int pipe; 1234 1235 if (!data->isoc_tx_ep) 1236 return ERR_PTR(-ENODEV); 1237 1238 urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, GFP_KERNEL); 1239 if (!urb) 1240 return ERR_PTR(-ENOMEM); 1241 1242 pipe = usb_sndisocpipe(data->udev, data->isoc_tx_ep->bEndpointAddress); 1243 1244 usb_fill_int_urb(urb, data->udev, pipe, 1245 skb->data, skb->len, btusb_isoc_tx_complete, 1246 skb, data->isoc_tx_ep->bInterval); 1247 1248 urb->transfer_flags = URB_ISO_ASAP; 1249 1250 __fill_isoc_descriptor(urb, skb->len, 1251 le16_to_cpu(data->isoc_tx_ep->wMaxPacketSize)); 1252 1253 skb->dev = (void *)hdev; 1254 1255 return urb; 1256 } 1257 1258 static int submit_tx_urb(struct hci_dev *hdev, struct urb *urb) 1259 { 1260 struct btusb_data *data = hci_get_drvdata(hdev); 1261 int err; 1262 1263 usb_anchor_urb(urb, &data->tx_anchor); 1264 1265 err = usb_submit_urb(urb, GFP_KERNEL); 1266 if (err < 0) { 1267 if (err != -EPERM && err != -ENODEV) 1268 BT_ERR("%s urb %p submission failed (%d)", 1269 hdev->name, urb, -err); 1270 kfree(urb->setup_packet); 1271 usb_unanchor_urb(urb); 1272 } else { 1273 usb_mark_last_busy(data->udev); 1274 } 1275 1276 usb_free_urb(urb); 1277 return err; 1278 } 1279 1280 static int submit_or_queue_tx_urb(struct hci_dev *hdev, struct urb *urb) 1281 { 1282 struct btusb_data *data = hci_get_drvdata(hdev); 1283 unsigned long flags; 1284 bool suspending; 1285 1286 spin_lock_irqsave(&data->txlock, flags); 1287 suspending = test_bit(BTUSB_SUSPENDING, &data->flags); 1288 if (!suspending) 1289 data->tx_in_flight++; 1290 spin_unlock_irqrestore(&data->txlock, flags); 1291 1292 if (!suspending) 1293 return submit_tx_urb(hdev, urb); 1294 1295 usb_anchor_urb(urb, &data->deferred); 1296 schedule_work(&data->waker); 1297 1298 usb_free_urb(urb); 1299 return 0; 1300 } 1301 1302 static int btusb_send_frame(struct hci_dev *hdev, struct sk_buff *skb) 1303 { 1304 struct urb *urb; 1305 1306 BT_DBG("%s", hdev->name); 1307 1308 switch (hci_skb_pkt_type(skb)) { 1309 case HCI_COMMAND_PKT: 1310 urb = alloc_ctrl_urb(hdev, skb); 1311 if (IS_ERR(urb)) 1312 return PTR_ERR(urb); 1313 1314 hdev->stat.cmd_tx++; 1315 return submit_or_queue_tx_urb(hdev, urb); 1316 1317 case HCI_ACLDATA_PKT: 1318 urb = alloc_bulk_urb(hdev, skb); 1319 if (IS_ERR(urb)) 1320 return PTR_ERR(urb); 1321 1322 hdev->stat.acl_tx++; 1323 return submit_or_queue_tx_urb(hdev, urb); 1324 1325 case HCI_SCODATA_PKT: 1326 if (hci_conn_num(hdev, SCO_LINK) < 1) 1327 return -ENODEV; 1328 1329 urb = alloc_isoc_urb(hdev, skb); 1330 if (IS_ERR(urb)) 1331 return PTR_ERR(urb); 1332 1333 hdev->stat.sco_tx++; 1334 return submit_tx_urb(hdev, urb); 1335 } 1336 1337 return -EILSEQ; 1338 } 1339 1340 static void btusb_notify(struct hci_dev *hdev, unsigned int evt) 1341 { 1342 struct btusb_data *data = hci_get_drvdata(hdev); 1343 1344 BT_DBG("%s evt %d", hdev->name, evt); 1345 1346 if (hci_conn_num(hdev, SCO_LINK) != data->sco_num) { 1347 data->sco_num = hci_conn_num(hdev, SCO_LINK); 1348 schedule_work(&data->work); 1349 } 1350 } 1351 1352 static inline int __set_isoc_interface(struct hci_dev *hdev, int altsetting) 1353 { 1354 struct btusb_data *data = hci_get_drvdata(hdev); 1355 struct usb_interface *intf = data->isoc; 1356 struct usb_endpoint_descriptor *ep_desc; 1357 int i, err; 1358 1359 if (!data->isoc) 1360 return -ENODEV; 1361 1362 err = usb_set_interface(data->udev, 1, altsetting); 1363 if (err < 0) { 1364 BT_ERR("%s setting interface failed (%d)", hdev->name, -err); 1365 return err; 1366 } 1367 1368 data->isoc_altsetting = altsetting; 1369 1370 data->isoc_tx_ep = NULL; 1371 data->isoc_rx_ep = NULL; 1372 1373 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) { 1374 ep_desc = &intf->cur_altsetting->endpoint[i].desc; 1375 1376 if (!data->isoc_tx_ep && usb_endpoint_is_isoc_out(ep_desc)) { 1377 data->isoc_tx_ep = ep_desc; 1378 continue; 1379 } 1380 1381 if (!data->isoc_rx_ep && usb_endpoint_is_isoc_in(ep_desc)) { 1382 data->isoc_rx_ep = ep_desc; 1383 continue; 1384 } 1385 } 1386 1387 if (!data->isoc_tx_ep || !data->isoc_rx_ep) { 1388 BT_ERR("%s invalid SCO descriptors", hdev->name); 1389 return -ENODEV; 1390 } 1391 1392 return 0; 1393 } 1394 1395 static void btusb_work(struct work_struct *work) 1396 { 1397 struct btusb_data *data = container_of(work, struct btusb_data, work); 1398 struct hci_dev *hdev = data->hdev; 1399 int new_alts; 1400 int err; 1401 1402 if (data->sco_num > 0) { 1403 if (!test_bit(BTUSB_DID_ISO_RESUME, &data->flags)) { 1404 err = usb_autopm_get_interface(data->isoc ? data->isoc : data->intf); 1405 if (err < 0) { 1406 clear_bit(BTUSB_ISOC_RUNNING, &data->flags); 1407 usb_kill_anchored_urbs(&data->isoc_anchor); 1408 return; 1409 } 1410 1411 set_bit(BTUSB_DID_ISO_RESUME, &data->flags); 1412 } 1413 1414 if (hdev->voice_setting & 0x0020) { 1415 static const int alts[3] = { 2, 4, 5 }; 1416 1417 new_alts = alts[data->sco_num - 1]; 1418 } else { 1419 new_alts = data->sco_num; 1420 } 1421 1422 if (data->isoc_altsetting != new_alts) { 1423 unsigned long flags; 1424 1425 clear_bit(BTUSB_ISOC_RUNNING, &data->flags); 1426 usb_kill_anchored_urbs(&data->isoc_anchor); 1427 1428 /* When isochronous alternate setting needs to be 1429 * changed, because SCO connection has been added 1430 * or removed, a packet fragment may be left in the 1431 * reassembling state. This could lead to wrongly 1432 * assembled fragments. 1433 * 1434 * Clear outstanding fragment when selecting a new 1435 * alternate setting. 1436 */ 1437 spin_lock_irqsave(&data->rxlock, flags); 1438 kfree_skb(data->sco_skb); 1439 data->sco_skb = NULL; 1440 spin_unlock_irqrestore(&data->rxlock, flags); 1441 1442 if (__set_isoc_interface(hdev, new_alts) < 0) 1443 return; 1444 } 1445 1446 if (!test_and_set_bit(BTUSB_ISOC_RUNNING, &data->flags)) { 1447 if (btusb_submit_isoc_urb(hdev, GFP_KERNEL) < 0) 1448 clear_bit(BTUSB_ISOC_RUNNING, &data->flags); 1449 else 1450 btusb_submit_isoc_urb(hdev, GFP_KERNEL); 1451 } 1452 } else { 1453 clear_bit(BTUSB_ISOC_RUNNING, &data->flags); 1454 usb_kill_anchored_urbs(&data->isoc_anchor); 1455 1456 __set_isoc_interface(hdev, 0); 1457 if (test_and_clear_bit(BTUSB_DID_ISO_RESUME, &data->flags)) 1458 usb_autopm_put_interface(data->isoc ? data->isoc : data->intf); 1459 } 1460 } 1461 1462 static void btusb_waker(struct work_struct *work) 1463 { 1464 struct btusb_data *data = container_of(work, struct btusb_data, waker); 1465 int err; 1466 1467 err = usb_autopm_get_interface(data->intf); 1468 if (err < 0) 1469 return; 1470 1471 usb_autopm_put_interface(data->intf); 1472 } 1473 1474 static int btusb_setup_bcm92035(struct hci_dev *hdev) 1475 { 1476 struct sk_buff *skb; 1477 u8 val = 0x00; 1478 1479 BT_DBG("%s", hdev->name); 1480 1481 skb = __hci_cmd_sync(hdev, 0xfc3b, 1, &val, HCI_INIT_TIMEOUT); 1482 if (IS_ERR(skb)) 1483 BT_ERR("BCM92035 command failed (%ld)", -PTR_ERR(skb)); 1484 else 1485 kfree_skb(skb); 1486 1487 return 0; 1488 } 1489 1490 static int btusb_setup_csr(struct hci_dev *hdev) 1491 { 1492 struct hci_rp_read_local_version *rp; 1493 struct sk_buff *skb; 1494 1495 BT_DBG("%s", hdev->name); 1496 1497 skb = __hci_cmd_sync(hdev, HCI_OP_READ_LOCAL_VERSION, 0, NULL, 1498 HCI_INIT_TIMEOUT); 1499 if (IS_ERR(skb)) { 1500 int err = PTR_ERR(skb); 1501 BT_ERR("%s: CSR: Local version failed (%d)", hdev->name, err); 1502 return err; 1503 } 1504 1505 if (skb->len != sizeof(struct hci_rp_read_local_version)) { 1506 BT_ERR("%s: CSR: Local version length mismatch", hdev->name); 1507 kfree_skb(skb); 1508 return -EIO; 1509 } 1510 1511 rp = (struct hci_rp_read_local_version *)skb->data; 1512 1513 /* Detect controllers which aren't real CSR ones. */ 1514 if (le16_to_cpu(rp->manufacturer) != 10 || 1515 le16_to_cpu(rp->lmp_subver) == 0x0c5c) { 1516 /* Clear the reset quirk since this is not an actual 1517 * early Bluetooth 1.1 device from CSR. 1518 */ 1519 clear_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks); 1520 1521 /* These fake CSR controllers have all a broken 1522 * stored link key handling and so just disable it. 1523 */ 1524 set_bit(HCI_QUIRK_BROKEN_STORED_LINK_KEY, &hdev->quirks); 1525 } 1526 1527 kfree_skb(skb); 1528 1529 return 0; 1530 } 1531 1532 static const struct firmware *btusb_setup_intel_get_fw(struct hci_dev *hdev, 1533 struct intel_version *ver) 1534 { 1535 const struct firmware *fw; 1536 char fwname[64]; 1537 int ret; 1538 1539 snprintf(fwname, sizeof(fwname), 1540 "intel/ibt-hw-%x.%x.%x-fw-%x.%x.%x.%x.%x.bseq", 1541 ver->hw_platform, ver->hw_variant, ver->hw_revision, 1542 ver->fw_variant, ver->fw_revision, ver->fw_build_num, 1543 ver->fw_build_ww, ver->fw_build_yy); 1544 1545 ret = request_firmware(&fw, fwname, &hdev->dev); 1546 if (ret < 0) { 1547 if (ret == -EINVAL) { 1548 BT_ERR("%s Intel firmware file request failed (%d)", 1549 hdev->name, ret); 1550 return NULL; 1551 } 1552 1553 BT_ERR("%s failed to open Intel firmware file: %s(%d)", 1554 hdev->name, fwname, ret); 1555 1556 /* If the correct firmware patch file is not found, use the 1557 * default firmware patch file instead 1558 */ 1559 snprintf(fwname, sizeof(fwname), "intel/ibt-hw-%x.%x.bseq", 1560 ver->hw_platform, ver->hw_variant); 1561 if (request_firmware(&fw, fwname, &hdev->dev) < 0) { 1562 BT_ERR("%s failed to open default Intel fw file: %s", 1563 hdev->name, fwname); 1564 return NULL; 1565 } 1566 } 1567 1568 BT_INFO("%s: Intel Bluetooth firmware file: %s", hdev->name, fwname); 1569 1570 return fw; 1571 } 1572 1573 static int btusb_setup_intel_patching(struct hci_dev *hdev, 1574 const struct firmware *fw, 1575 const u8 **fw_ptr, int *disable_patch) 1576 { 1577 struct sk_buff *skb; 1578 struct hci_command_hdr *cmd; 1579 const u8 *cmd_param; 1580 struct hci_event_hdr *evt = NULL; 1581 const u8 *evt_param = NULL; 1582 int remain = fw->size - (*fw_ptr - fw->data); 1583 1584 /* The first byte indicates the types of the patch command or event. 1585 * 0x01 means HCI command and 0x02 is HCI event. If the first bytes 1586 * in the current firmware buffer doesn't start with 0x01 or 1587 * the size of remain buffer is smaller than HCI command header, 1588 * the firmware file is corrupted and it should stop the patching 1589 * process. 1590 */ 1591 if (remain > HCI_COMMAND_HDR_SIZE && *fw_ptr[0] != 0x01) { 1592 BT_ERR("%s Intel fw corrupted: invalid cmd read", hdev->name); 1593 return -EINVAL; 1594 } 1595 (*fw_ptr)++; 1596 remain--; 1597 1598 cmd = (struct hci_command_hdr *)(*fw_ptr); 1599 *fw_ptr += sizeof(*cmd); 1600 remain -= sizeof(*cmd); 1601 1602 /* Ensure that the remain firmware data is long enough than the length 1603 * of command parameter. If not, the firmware file is corrupted. 1604 */ 1605 if (remain < cmd->plen) { 1606 BT_ERR("%s Intel fw corrupted: invalid cmd len", hdev->name); 1607 return -EFAULT; 1608 } 1609 1610 /* If there is a command that loads a patch in the firmware 1611 * file, then enable the patch upon success, otherwise just 1612 * disable the manufacturer mode, for example patch activation 1613 * is not required when the default firmware patch file is used 1614 * because there are no patch data to load. 1615 */ 1616 if (*disable_patch && le16_to_cpu(cmd->opcode) == 0xfc8e) 1617 *disable_patch = 0; 1618 1619 cmd_param = *fw_ptr; 1620 *fw_ptr += cmd->plen; 1621 remain -= cmd->plen; 1622 1623 /* This reads the expected events when the above command is sent to the 1624 * device. Some vendor commands expects more than one events, for 1625 * example command status event followed by vendor specific event. 1626 * For this case, it only keeps the last expected event. so the command 1627 * can be sent with __hci_cmd_sync_ev() which returns the sk_buff of 1628 * last expected event. 1629 */ 1630 while (remain > HCI_EVENT_HDR_SIZE && *fw_ptr[0] == 0x02) { 1631 (*fw_ptr)++; 1632 remain--; 1633 1634 evt = (struct hci_event_hdr *)(*fw_ptr); 1635 *fw_ptr += sizeof(*evt); 1636 remain -= sizeof(*evt); 1637 1638 if (remain < evt->plen) { 1639 BT_ERR("%s Intel fw corrupted: invalid evt len", 1640 hdev->name); 1641 return -EFAULT; 1642 } 1643 1644 evt_param = *fw_ptr; 1645 *fw_ptr += evt->plen; 1646 remain -= evt->plen; 1647 } 1648 1649 /* Every HCI commands in the firmware file has its correspond event. 1650 * If event is not found or remain is smaller than zero, the firmware 1651 * file is corrupted. 1652 */ 1653 if (!evt || !evt_param || remain < 0) { 1654 BT_ERR("%s Intel fw corrupted: invalid evt read", hdev->name); 1655 return -EFAULT; 1656 } 1657 1658 skb = __hci_cmd_sync_ev(hdev, le16_to_cpu(cmd->opcode), cmd->plen, 1659 cmd_param, evt->evt, HCI_INIT_TIMEOUT); 1660 if (IS_ERR(skb)) { 1661 BT_ERR("%s sending Intel patch command (0x%4.4x) failed (%ld)", 1662 hdev->name, cmd->opcode, PTR_ERR(skb)); 1663 return PTR_ERR(skb); 1664 } 1665 1666 /* It ensures that the returned event matches the event data read from 1667 * the firmware file. At fist, it checks the length and then 1668 * the contents of the event. 1669 */ 1670 if (skb->len != evt->plen) { 1671 BT_ERR("%s mismatch event length (opcode 0x%4.4x)", hdev->name, 1672 le16_to_cpu(cmd->opcode)); 1673 kfree_skb(skb); 1674 return -EFAULT; 1675 } 1676 1677 if (memcmp(skb->data, evt_param, evt->plen)) { 1678 BT_ERR("%s mismatch event parameter (opcode 0x%4.4x)", 1679 hdev->name, le16_to_cpu(cmd->opcode)); 1680 kfree_skb(skb); 1681 return -EFAULT; 1682 } 1683 kfree_skb(skb); 1684 1685 return 0; 1686 } 1687 1688 static int btusb_setup_intel(struct hci_dev *hdev) 1689 { 1690 struct sk_buff *skb; 1691 const struct firmware *fw; 1692 const u8 *fw_ptr; 1693 int disable_patch, err; 1694 struct intel_version ver; 1695 1696 BT_DBG("%s", hdev->name); 1697 1698 /* The controller has a bug with the first HCI command sent to it 1699 * returning number of completed commands as zero. This would stall the 1700 * command processing in the Bluetooth core. 1701 * 1702 * As a workaround, send HCI Reset command first which will reset the 1703 * number of completed commands and allow normal command processing 1704 * from now on. 1705 */ 1706 skb = __hci_cmd_sync(hdev, HCI_OP_RESET, 0, NULL, HCI_INIT_TIMEOUT); 1707 if (IS_ERR(skb)) { 1708 BT_ERR("%s sending initial HCI reset command failed (%ld)", 1709 hdev->name, PTR_ERR(skb)); 1710 return PTR_ERR(skb); 1711 } 1712 kfree_skb(skb); 1713 1714 /* Read Intel specific controller version first to allow selection of 1715 * which firmware file to load. 1716 * 1717 * The returned information are hardware variant and revision plus 1718 * firmware variant, revision and build number. 1719 */ 1720 err = btintel_read_version(hdev, &ver); 1721 if (err) 1722 return err; 1723 1724 BT_INFO("%s: read Intel version: %02x%02x%02x%02x%02x%02x%02x%02x%02x", 1725 hdev->name, ver.hw_platform, ver.hw_variant, ver.hw_revision, 1726 ver.fw_variant, ver.fw_revision, ver.fw_build_num, 1727 ver.fw_build_ww, ver.fw_build_yy, ver.fw_patch_num); 1728 1729 /* fw_patch_num indicates the version of patch the device currently 1730 * have. If there is no patch data in the device, it is always 0x00. 1731 * So, if it is other than 0x00, no need to patch the device again. 1732 */ 1733 if (ver.fw_patch_num) { 1734 BT_INFO("%s: Intel device is already patched. patch num: %02x", 1735 hdev->name, ver.fw_patch_num); 1736 goto complete; 1737 } 1738 1739 /* Opens the firmware patch file based on the firmware version read 1740 * from the controller. If it fails to open the matching firmware 1741 * patch file, it tries to open the default firmware patch file. 1742 * If no patch file is found, allow the device to operate without 1743 * a patch. 1744 */ 1745 fw = btusb_setup_intel_get_fw(hdev, &ver); 1746 if (!fw) 1747 goto complete; 1748 fw_ptr = fw->data; 1749 1750 /* Enable the manufacturer mode of the controller. 1751 * Only while this mode is enabled, the driver can download the 1752 * firmware patch data and configuration parameters. 1753 */ 1754 err = btintel_enter_mfg(hdev); 1755 if (err) { 1756 release_firmware(fw); 1757 return err; 1758 } 1759 1760 disable_patch = 1; 1761 1762 /* The firmware data file consists of list of Intel specific HCI 1763 * commands and its expected events. The first byte indicates the 1764 * type of the message, either HCI command or HCI event. 1765 * 1766 * It reads the command and its expected event from the firmware file, 1767 * and send to the controller. Once __hci_cmd_sync_ev() returns, 1768 * the returned event is compared with the event read from the firmware 1769 * file and it will continue until all the messages are downloaded to 1770 * the controller. 1771 * 1772 * Once the firmware patching is completed successfully, 1773 * the manufacturer mode is disabled with reset and activating the 1774 * downloaded patch. 1775 * 1776 * If the firmware patching fails, the manufacturer mode is 1777 * disabled with reset and deactivating the patch. 1778 * 1779 * If the default patch file is used, no reset is done when disabling 1780 * the manufacturer. 1781 */ 1782 while (fw->size > fw_ptr - fw->data) { 1783 int ret; 1784 1785 ret = btusb_setup_intel_patching(hdev, fw, &fw_ptr, 1786 &disable_patch); 1787 if (ret < 0) 1788 goto exit_mfg_deactivate; 1789 } 1790 1791 release_firmware(fw); 1792 1793 if (disable_patch) 1794 goto exit_mfg_disable; 1795 1796 /* Patching completed successfully and disable the manufacturer mode 1797 * with reset and activate the downloaded firmware patches. 1798 */ 1799 err = btintel_exit_mfg(hdev, true, true); 1800 if (err) 1801 return err; 1802 1803 BT_INFO("%s: Intel Bluetooth firmware patch completed and activated", 1804 hdev->name); 1805 1806 goto complete; 1807 1808 exit_mfg_disable: 1809 /* Disable the manufacturer mode without reset */ 1810 err = btintel_exit_mfg(hdev, false, false); 1811 if (err) 1812 return err; 1813 1814 BT_INFO("%s: Intel Bluetooth firmware patch completed", hdev->name); 1815 1816 goto complete; 1817 1818 exit_mfg_deactivate: 1819 release_firmware(fw); 1820 1821 /* Patching failed. Disable the manufacturer mode with reset and 1822 * deactivate the downloaded firmware patches. 1823 */ 1824 err = btintel_exit_mfg(hdev, true, false); 1825 if (err) 1826 return err; 1827 1828 BT_INFO("%s: Intel Bluetooth firmware patch completed and deactivated", 1829 hdev->name); 1830 1831 complete: 1832 /* Set the event mask for Intel specific vendor events. This enables 1833 * a few extra events that are useful during general operation. 1834 */ 1835 btintel_set_event_mask_mfg(hdev, false); 1836 1837 btintel_check_bdaddr(hdev); 1838 return 0; 1839 } 1840 1841 static int inject_cmd_complete(struct hci_dev *hdev, __u16 opcode) 1842 { 1843 struct sk_buff *skb; 1844 struct hci_event_hdr *hdr; 1845 struct hci_ev_cmd_complete *evt; 1846 1847 skb = bt_skb_alloc(sizeof(*hdr) + sizeof(*evt) + 1, GFP_ATOMIC); 1848 if (!skb) 1849 return -ENOMEM; 1850 1851 hdr = skb_put(skb, sizeof(*hdr)); 1852 hdr->evt = HCI_EV_CMD_COMPLETE; 1853 hdr->plen = sizeof(*evt) + 1; 1854 1855 evt = skb_put(skb, sizeof(*evt)); 1856 evt->ncmd = 0x01; 1857 evt->opcode = cpu_to_le16(opcode); 1858 1859 skb_put_u8(skb, 0x00); 1860 1861 hci_skb_pkt_type(skb) = HCI_EVENT_PKT; 1862 1863 return hci_recv_frame(hdev, skb); 1864 } 1865 1866 static int btusb_recv_bulk_intel(struct btusb_data *data, void *buffer, 1867 int count) 1868 { 1869 /* When the device is in bootloader mode, then it can send 1870 * events via the bulk endpoint. These events are treated the 1871 * same way as the ones received from the interrupt endpoint. 1872 */ 1873 if (test_bit(BTUSB_BOOTLOADER, &data->flags)) 1874 return btusb_recv_intr(data, buffer, count); 1875 1876 return btusb_recv_bulk(data, buffer, count); 1877 } 1878 1879 static void btusb_intel_bootup(struct btusb_data *data, const void *ptr, 1880 unsigned int len) 1881 { 1882 const struct intel_bootup *evt = ptr; 1883 1884 if (len != sizeof(*evt)) 1885 return; 1886 1887 if (test_and_clear_bit(BTUSB_BOOTING, &data->flags)) { 1888 smp_mb__after_atomic(); 1889 wake_up_bit(&data->flags, BTUSB_BOOTING); 1890 } 1891 } 1892 1893 static void btusb_intel_secure_send_result(struct btusb_data *data, 1894 const void *ptr, unsigned int len) 1895 { 1896 const struct intel_secure_send_result *evt = ptr; 1897 1898 if (len != sizeof(*evt)) 1899 return; 1900 1901 if (evt->result) 1902 set_bit(BTUSB_FIRMWARE_FAILED, &data->flags); 1903 1904 if (test_and_clear_bit(BTUSB_DOWNLOADING, &data->flags) && 1905 test_bit(BTUSB_FIRMWARE_LOADED, &data->flags)) { 1906 smp_mb__after_atomic(); 1907 wake_up_bit(&data->flags, BTUSB_DOWNLOADING); 1908 } 1909 } 1910 1911 static int btusb_recv_event_intel(struct hci_dev *hdev, struct sk_buff *skb) 1912 { 1913 struct btusb_data *data = hci_get_drvdata(hdev); 1914 1915 if (test_bit(BTUSB_BOOTLOADER, &data->flags)) { 1916 struct hci_event_hdr *hdr = (void *)skb->data; 1917 1918 if (skb->len > HCI_EVENT_HDR_SIZE && hdr->evt == 0xff && 1919 hdr->plen > 0) { 1920 const void *ptr = skb->data + HCI_EVENT_HDR_SIZE + 1; 1921 unsigned int len = skb->len - HCI_EVENT_HDR_SIZE - 1; 1922 1923 switch (skb->data[2]) { 1924 case 0x02: 1925 /* When switching to the operational firmware 1926 * the device sends a vendor specific event 1927 * indicating that the bootup completed. 1928 */ 1929 btusb_intel_bootup(data, ptr, len); 1930 break; 1931 case 0x06: 1932 /* When the firmware loading completes the 1933 * device sends out a vendor specific event 1934 * indicating the result of the firmware 1935 * loading. 1936 */ 1937 btusb_intel_secure_send_result(data, ptr, len); 1938 break; 1939 } 1940 } 1941 } 1942 1943 return hci_recv_frame(hdev, skb); 1944 } 1945 1946 static int btusb_send_frame_intel(struct hci_dev *hdev, struct sk_buff *skb) 1947 { 1948 struct btusb_data *data = hci_get_drvdata(hdev); 1949 struct urb *urb; 1950 1951 BT_DBG("%s", hdev->name); 1952 1953 switch (hci_skb_pkt_type(skb)) { 1954 case HCI_COMMAND_PKT: 1955 if (test_bit(BTUSB_BOOTLOADER, &data->flags)) { 1956 struct hci_command_hdr *cmd = (void *)skb->data; 1957 __u16 opcode = le16_to_cpu(cmd->opcode); 1958 1959 /* When in bootloader mode and the command 0xfc09 1960 * is received, it needs to be send down the 1961 * bulk endpoint. So allocate a bulk URB instead. 1962 */ 1963 if (opcode == 0xfc09) 1964 urb = alloc_bulk_urb(hdev, skb); 1965 else 1966 urb = alloc_ctrl_urb(hdev, skb); 1967 1968 /* When the 0xfc01 command is issued to boot into 1969 * the operational firmware, it will actually not 1970 * send a command complete event. To keep the flow 1971 * control working inject that event here. 1972 */ 1973 if (opcode == 0xfc01) 1974 inject_cmd_complete(hdev, opcode); 1975 } else { 1976 urb = alloc_ctrl_urb(hdev, skb); 1977 } 1978 if (IS_ERR(urb)) 1979 return PTR_ERR(urb); 1980 1981 hdev->stat.cmd_tx++; 1982 return submit_or_queue_tx_urb(hdev, urb); 1983 1984 case HCI_ACLDATA_PKT: 1985 urb = alloc_bulk_urb(hdev, skb); 1986 if (IS_ERR(urb)) 1987 return PTR_ERR(urb); 1988 1989 hdev->stat.acl_tx++; 1990 return submit_or_queue_tx_urb(hdev, urb); 1991 1992 case HCI_SCODATA_PKT: 1993 if (hci_conn_num(hdev, SCO_LINK) < 1) 1994 return -ENODEV; 1995 1996 urb = alloc_isoc_urb(hdev, skb); 1997 if (IS_ERR(urb)) 1998 return PTR_ERR(urb); 1999 2000 hdev->stat.sco_tx++; 2001 return submit_tx_urb(hdev, urb); 2002 } 2003 2004 return -EILSEQ; 2005 } 2006 2007 static int btusb_setup_intel_new(struct hci_dev *hdev) 2008 { 2009 static const u8 reset_param[] = { 0x00, 0x01, 0x00, 0x01, 2010 0x00, 0x08, 0x04, 0x00 }; 2011 struct btusb_data *data = hci_get_drvdata(hdev); 2012 struct sk_buff *skb; 2013 struct intel_version ver; 2014 struct intel_boot_params *params; 2015 const struct firmware *fw; 2016 const u8 *fw_ptr; 2017 u32 frag_len; 2018 char fwname[64]; 2019 ktime_t calltime, delta, rettime; 2020 unsigned long long duration; 2021 int err; 2022 2023 BT_DBG("%s", hdev->name); 2024 2025 calltime = ktime_get(); 2026 2027 /* Read the Intel version information to determine if the device 2028 * is in bootloader mode or if it already has operational firmware 2029 * loaded. 2030 */ 2031 err = btintel_read_version(hdev, &ver); 2032 if (err) 2033 return err; 2034 2035 /* The hardware platform number has a fixed value of 0x37 and 2036 * for now only accept this single value. 2037 */ 2038 if (ver.hw_platform != 0x37) { 2039 BT_ERR("%s: Unsupported Intel hardware platform (%u)", 2040 hdev->name, ver.hw_platform); 2041 return -EINVAL; 2042 } 2043 2044 /* Check for supported iBT hardware variants of this firmware 2045 * loading method. 2046 * 2047 * This check has been put in place to ensure correct forward 2048 * compatibility options when newer hardware variants come along. 2049 */ 2050 switch (ver.hw_variant) { 2051 case 0x0b: /* SfP */ 2052 case 0x0c: /* WsP */ 2053 case 0x11: /* JfP */ 2054 case 0x12: /* ThP */ 2055 break; 2056 default: 2057 BT_ERR("%s: Unsupported Intel hardware variant (%u)", 2058 hdev->name, ver.hw_variant); 2059 return -EINVAL; 2060 } 2061 2062 btintel_version_info(hdev, &ver); 2063 2064 /* The firmware variant determines if the device is in bootloader 2065 * mode or is running operational firmware. The value 0x06 identifies 2066 * the bootloader and the value 0x23 identifies the operational 2067 * firmware. 2068 * 2069 * When the operational firmware is already present, then only 2070 * the check for valid Bluetooth device address is needed. This 2071 * determines if the device will be added as configured or 2072 * unconfigured controller. 2073 * 2074 * It is not possible to use the Secure Boot Parameters in this 2075 * case since that command is only available in bootloader mode. 2076 */ 2077 if (ver.fw_variant == 0x23) { 2078 clear_bit(BTUSB_BOOTLOADER, &data->flags); 2079 btintel_check_bdaddr(hdev); 2080 return 0; 2081 } 2082 2083 /* If the device is not in bootloader mode, then the only possible 2084 * choice is to return an error and abort the device initialization. 2085 */ 2086 if (ver.fw_variant != 0x06) { 2087 BT_ERR("%s: Unsupported Intel firmware variant (%u)", 2088 hdev->name, ver.fw_variant); 2089 return -ENODEV; 2090 } 2091 2092 /* Read the secure boot parameters to identify the operating 2093 * details of the bootloader. 2094 */ 2095 skb = __hci_cmd_sync(hdev, 0xfc0d, 0, NULL, HCI_INIT_TIMEOUT); 2096 if (IS_ERR(skb)) { 2097 BT_ERR("%s: Reading Intel boot parameters failed (%ld)", 2098 hdev->name, PTR_ERR(skb)); 2099 return PTR_ERR(skb); 2100 } 2101 2102 if (skb->len != sizeof(*params)) { 2103 BT_ERR("%s: Intel boot parameters size mismatch", hdev->name); 2104 kfree_skb(skb); 2105 return -EILSEQ; 2106 } 2107 2108 params = (struct intel_boot_params *)skb->data; 2109 2110 BT_INFO("%s: Device revision is %u", hdev->name, 2111 le16_to_cpu(params->dev_revid)); 2112 2113 BT_INFO("%s: Secure boot is %s", hdev->name, 2114 params->secure_boot ? "enabled" : "disabled"); 2115 2116 BT_INFO("%s: OTP lock is %s", hdev->name, 2117 params->otp_lock ? "enabled" : "disabled"); 2118 2119 BT_INFO("%s: API lock is %s", hdev->name, 2120 params->api_lock ? "enabled" : "disabled"); 2121 2122 BT_INFO("%s: Debug lock is %s", hdev->name, 2123 params->debug_lock ? "enabled" : "disabled"); 2124 2125 BT_INFO("%s: Minimum firmware build %u week %u %u", hdev->name, 2126 params->min_fw_build_nn, params->min_fw_build_cw, 2127 2000 + params->min_fw_build_yy); 2128 2129 /* It is required that every single firmware fragment is acknowledged 2130 * with a command complete event. If the boot parameters indicate 2131 * that this bootloader does not send them, then abort the setup. 2132 */ 2133 if (params->limited_cce != 0x00) { 2134 BT_ERR("%s: Unsupported Intel firmware loading method (%u)", 2135 hdev->name, params->limited_cce); 2136 kfree_skb(skb); 2137 return -EINVAL; 2138 } 2139 2140 /* If the OTP has no valid Bluetooth device address, then there will 2141 * also be no valid address for the operational firmware. 2142 */ 2143 if (!bacmp(¶ms->otp_bdaddr, BDADDR_ANY)) { 2144 BT_INFO("%s: No device address configured", hdev->name); 2145 set_bit(HCI_QUIRK_INVALID_BDADDR, &hdev->quirks); 2146 } 2147 2148 /* With this Intel bootloader only the hardware variant and device 2149 * revision information are used to select the right firmware. 2150 * 2151 * The firmware filename is ibt-<hw_variant>-<dev_revid>.sfi. 2152 * 2153 * Currently the supported hardware variants are: 2154 * 11 (0x0b) for iBT3.0 (LnP/SfP) 2155 * 12 (0x0c) for iBT3.5 (WsP) 2156 * 17 (0x11) for iBT3.5 (JfP) 2157 * 18 (0x12) for iBT3.5 (ThP) 2158 */ 2159 snprintf(fwname, sizeof(fwname), "intel/ibt-%u-%u.sfi", 2160 le16_to_cpu(ver.hw_variant), 2161 le16_to_cpu(params->dev_revid)); 2162 2163 err = request_firmware(&fw, fwname, &hdev->dev); 2164 if (err < 0) { 2165 BT_ERR("%s: Failed to load Intel firmware file (%d)", 2166 hdev->name, err); 2167 kfree_skb(skb); 2168 return err; 2169 } 2170 2171 BT_INFO("%s: Found device firmware: %s", hdev->name, fwname); 2172 2173 /* Save the DDC file name for later use to apply once the firmware 2174 * downloading is done. 2175 */ 2176 snprintf(fwname, sizeof(fwname), "intel/ibt-%u-%u.ddc", 2177 le16_to_cpu(ver.hw_variant), 2178 le16_to_cpu(params->dev_revid)); 2179 2180 kfree_skb(skb); 2181 2182 if (fw->size < 644) { 2183 BT_ERR("%s: Invalid size of firmware file (%zu)", 2184 hdev->name, fw->size); 2185 err = -EBADF; 2186 goto done; 2187 } 2188 2189 set_bit(BTUSB_DOWNLOADING, &data->flags); 2190 2191 /* Start the firmware download transaction with the Init fragment 2192 * represented by the 128 bytes of CSS header. 2193 */ 2194 err = btintel_secure_send(hdev, 0x00, 128, fw->data); 2195 if (err < 0) { 2196 BT_ERR("%s: Failed to send firmware header (%d)", 2197 hdev->name, err); 2198 goto done; 2199 } 2200 2201 /* Send the 256 bytes of public key information from the firmware 2202 * as the PKey fragment. 2203 */ 2204 err = btintel_secure_send(hdev, 0x03, 256, fw->data + 128); 2205 if (err < 0) { 2206 BT_ERR("%s: Failed to send firmware public key (%d)", 2207 hdev->name, err); 2208 goto done; 2209 } 2210 2211 /* Send the 256 bytes of signature information from the firmware 2212 * as the Sign fragment. 2213 */ 2214 err = btintel_secure_send(hdev, 0x02, 256, fw->data + 388); 2215 if (err < 0) { 2216 BT_ERR("%s: Failed to send firmware signature (%d)", 2217 hdev->name, err); 2218 goto done; 2219 } 2220 2221 fw_ptr = fw->data + 644; 2222 frag_len = 0; 2223 2224 while (fw_ptr - fw->data < fw->size) { 2225 struct hci_command_hdr *cmd = (void *)(fw_ptr + frag_len); 2226 2227 frag_len += sizeof(*cmd) + cmd->plen; 2228 2229 /* The parameter length of the secure send command requires 2230 * a 4 byte alignment. It happens so that the firmware file 2231 * contains proper Intel_NOP commands to align the fragments 2232 * as needed. 2233 * 2234 * Send set of commands with 4 byte alignment from the 2235 * firmware data buffer as a single Data fragement. 2236 */ 2237 if (!(frag_len % 4)) { 2238 err = btintel_secure_send(hdev, 0x01, frag_len, fw_ptr); 2239 if (err < 0) { 2240 BT_ERR("%s: Failed to send firmware data (%d)", 2241 hdev->name, err); 2242 goto done; 2243 } 2244 2245 fw_ptr += frag_len; 2246 frag_len = 0; 2247 } 2248 } 2249 2250 set_bit(BTUSB_FIRMWARE_LOADED, &data->flags); 2251 2252 BT_INFO("%s: Waiting for firmware download to complete", hdev->name); 2253 2254 /* Before switching the device into operational mode and with that 2255 * booting the loaded firmware, wait for the bootloader notification 2256 * that all fragments have been successfully received. 2257 * 2258 * When the event processing receives the notification, then the 2259 * BTUSB_DOWNLOADING flag will be cleared. 2260 * 2261 * The firmware loading should not take longer than 5 seconds 2262 * and thus just timeout if that happens and fail the setup 2263 * of this device. 2264 */ 2265 err = wait_on_bit_timeout(&data->flags, BTUSB_DOWNLOADING, 2266 TASK_INTERRUPTIBLE, 2267 msecs_to_jiffies(5000)); 2268 if (err == -EINTR) { 2269 BT_ERR("%s: Firmware loading interrupted", hdev->name); 2270 goto done; 2271 } 2272 2273 if (err) { 2274 BT_ERR("%s: Firmware loading timeout", hdev->name); 2275 err = -ETIMEDOUT; 2276 goto done; 2277 } 2278 2279 if (test_bit(BTUSB_FIRMWARE_FAILED, &data->flags)) { 2280 BT_ERR("%s: Firmware loading failed", hdev->name); 2281 err = -ENOEXEC; 2282 goto done; 2283 } 2284 2285 rettime = ktime_get(); 2286 delta = ktime_sub(rettime, calltime); 2287 duration = (unsigned long long) ktime_to_ns(delta) >> 10; 2288 2289 BT_INFO("%s: Firmware loaded in %llu usecs", hdev->name, duration); 2290 2291 done: 2292 release_firmware(fw); 2293 2294 if (err < 0) 2295 return err; 2296 2297 calltime = ktime_get(); 2298 2299 set_bit(BTUSB_BOOTING, &data->flags); 2300 2301 skb = __hci_cmd_sync(hdev, 0xfc01, sizeof(reset_param), reset_param, 2302 HCI_INIT_TIMEOUT); 2303 if (IS_ERR(skb)) 2304 return PTR_ERR(skb); 2305 2306 kfree_skb(skb); 2307 2308 /* The bootloader will not indicate when the device is ready. This 2309 * is done by the operational firmware sending bootup notification. 2310 * 2311 * Booting into operational firmware should not take longer than 2312 * 1 second. However if that happens, then just fail the setup 2313 * since something went wrong. 2314 */ 2315 BT_INFO("%s: Waiting for device to boot", hdev->name); 2316 2317 err = wait_on_bit_timeout(&data->flags, BTUSB_BOOTING, 2318 TASK_INTERRUPTIBLE, 2319 msecs_to_jiffies(1000)); 2320 2321 if (err == -EINTR) { 2322 BT_ERR("%s: Device boot interrupted", hdev->name); 2323 return -EINTR; 2324 } 2325 2326 if (err) { 2327 BT_ERR("%s: Device boot timeout", hdev->name); 2328 return -ETIMEDOUT; 2329 } 2330 2331 rettime = ktime_get(); 2332 delta = ktime_sub(rettime, calltime); 2333 duration = (unsigned long long) ktime_to_ns(delta) >> 10; 2334 2335 BT_INFO("%s: Device booted in %llu usecs", hdev->name, duration); 2336 2337 clear_bit(BTUSB_BOOTLOADER, &data->flags); 2338 2339 /* Once the device is running in operational mode, it needs to apply 2340 * the device configuration (DDC) parameters. 2341 * 2342 * The device can work without DDC parameters, so even if it fails 2343 * to load the file, no need to fail the setup. 2344 */ 2345 btintel_load_ddc_config(hdev, fwname); 2346 2347 /* Set the event mask for Intel specific vendor events. This enables 2348 * a few extra events that are useful during general operation. It 2349 * does not enable any debugging related events. 2350 * 2351 * The device will function correctly without these events enabled 2352 * and thus no need to fail the setup. 2353 */ 2354 btintel_set_event_mask(hdev, false); 2355 2356 return 0; 2357 } 2358 2359 static int btusb_shutdown_intel(struct hci_dev *hdev) 2360 { 2361 struct sk_buff *skb; 2362 long ret; 2363 2364 /* Some platforms have an issue with BT LED when the interface is 2365 * down or BT radio is turned off, which takes 5 seconds to BT LED 2366 * goes off. This command turns off the BT LED immediately. 2367 */ 2368 skb = __hci_cmd_sync(hdev, 0xfc3f, 0, NULL, HCI_INIT_TIMEOUT); 2369 if (IS_ERR(skb)) { 2370 ret = PTR_ERR(skb); 2371 BT_ERR("%s: turning off Intel device LED failed (%ld)", 2372 hdev->name, ret); 2373 return ret; 2374 } 2375 kfree_skb(skb); 2376 2377 return 0; 2378 } 2379 2380 #ifdef CONFIG_PM 2381 /* Configure an out-of-band gpio as wake-up pin, if specified in device tree */ 2382 static int marvell_config_oob_wake(struct hci_dev *hdev) 2383 { 2384 struct sk_buff *skb; 2385 struct btusb_data *data = hci_get_drvdata(hdev); 2386 struct device *dev = &data->udev->dev; 2387 u16 pin, gap, opcode; 2388 int ret; 2389 u8 cmd[5]; 2390 2391 /* Move on if no wakeup pin specified */ 2392 if (of_property_read_u16(dev->of_node, "marvell,wakeup-pin", &pin) || 2393 of_property_read_u16(dev->of_node, "marvell,wakeup-gap-ms", &gap)) 2394 return 0; 2395 2396 /* Vendor specific command to configure a GPIO as wake-up pin */ 2397 opcode = hci_opcode_pack(0x3F, 0x59); 2398 cmd[0] = opcode & 0xFF; 2399 cmd[1] = opcode >> 8; 2400 cmd[2] = 2; /* length of parameters that follow */ 2401 cmd[3] = pin; 2402 cmd[4] = gap; /* time in ms, for which wakeup pin should be asserted */ 2403 2404 skb = bt_skb_alloc(sizeof(cmd), GFP_KERNEL); 2405 if (!skb) { 2406 bt_dev_err(hdev, "%s: No memory\n", __func__); 2407 return -ENOMEM; 2408 } 2409 2410 skb_put_data(skb, cmd, sizeof(cmd)); 2411 hci_skb_pkt_type(skb) = HCI_COMMAND_PKT; 2412 2413 ret = btusb_send_frame(hdev, skb); 2414 if (ret) { 2415 bt_dev_err(hdev, "%s: configuration failed\n", __func__); 2416 kfree_skb(skb); 2417 return ret; 2418 } 2419 2420 return 0; 2421 } 2422 #endif 2423 2424 static int btusb_set_bdaddr_marvell(struct hci_dev *hdev, 2425 const bdaddr_t *bdaddr) 2426 { 2427 struct sk_buff *skb; 2428 u8 buf[8]; 2429 long ret; 2430 2431 buf[0] = 0xfe; 2432 buf[1] = sizeof(bdaddr_t); 2433 memcpy(buf + 2, bdaddr, sizeof(bdaddr_t)); 2434 2435 skb = __hci_cmd_sync(hdev, 0xfc22, sizeof(buf), buf, HCI_INIT_TIMEOUT); 2436 if (IS_ERR(skb)) { 2437 ret = PTR_ERR(skb); 2438 BT_ERR("%s: changing Marvell device address failed (%ld)", 2439 hdev->name, ret); 2440 return ret; 2441 } 2442 kfree_skb(skb); 2443 2444 return 0; 2445 } 2446 2447 static int btusb_set_bdaddr_ath3012(struct hci_dev *hdev, 2448 const bdaddr_t *bdaddr) 2449 { 2450 struct sk_buff *skb; 2451 u8 buf[10]; 2452 long ret; 2453 2454 buf[0] = 0x01; 2455 buf[1] = 0x01; 2456 buf[2] = 0x00; 2457 buf[3] = sizeof(bdaddr_t); 2458 memcpy(buf + 4, bdaddr, sizeof(bdaddr_t)); 2459 2460 skb = __hci_cmd_sync(hdev, 0xfc0b, sizeof(buf), buf, HCI_INIT_TIMEOUT); 2461 if (IS_ERR(skb)) { 2462 ret = PTR_ERR(skb); 2463 BT_ERR("%s: Change address command failed (%ld)", 2464 hdev->name, ret); 2465 return ret; 2466 } 2467 kfree_skb(skb); 2468 2469 return 0; 2470 } 2471 2472 #define QCA_DFU_PACKET_LEN 4096 2473 2474 #define QCA_GET_TARGET_VERSION 0x09 2475 #define QCA_CHECK_STATUS 0x05 2476 #define QCA_DFU_DOWNLOAD 0x01 2477 2478 #define QCA_SYSCFG_UPDATED 0x40 2479 #define QCA_PATCH_UPDATED 0x80 2480 #define QCA_DFU_TIMEOUT 3000 2481 2482 struct qca_version { 2483 __le32 rom_version; 2484 __le32 patch_version; 2485 __le32 ram_version; 2486 __le32 ref_clock; 2487 __u8 reserved[4]; 2488 } __packed; 2489 2490 struct qca_rampatch_version { 2491 __le16 rom_version; 2492 __le16 patch_version; 2493 } __packed; 2494 2495 struct qca_device_info { 2496 u32 rom_version; 2497 u8 rampatch_hdr; /* length of header in rampatch */ 2498 u8 nvm_hdr; /* length of header in NVM */ 2499 u8 ver_offset; /* offset of version structure in rampatch */ 2500 }; 2501 2502 static const struct qca_device_info qca_devices_table[] = { 2503 { 0x00000100, 20, 4, 10 }, /* Rome 1.0 */ 2504 { 0x00000101, 20, 4, 10 }, /* Rome 1.1 */ 2505 { 0x00000200, 28, 4, 18 }, /* Rome 2.0 */ 2506 { 0x00000201, 28, 4, 18 }, /* Rome 2.1 */ 2507 { 0x00000300, 28, 4, 18 }, /* Rome 3.0 */ 2508 { 0x00000302, 28, 4, 18 }, /* Rome 3.2 */ 2509 }; 2510 2511 static int btusb_qca_send_vendor_req(struct hci_dev *hdev, u8 request, 2512 void *data, u16 size) 2513 { 2514 struct btusb_data *btdata = hci_get_drvdata(hdev); 2515 struct usb_device *udev = btdata->udev; 2516 int pipe, err; 2517 u8 *buf; 2518 2519 buf = kmalloc(size, GFP_KERNEL); 2520 if (!buf) 2521 return -ENOMEM; 2522 2523 /* Found some of USB hosts have IOT issues with ours so that we should 2524 * not wait until HCI layer is ready. 2525 */ 2526 pipe = usb_rcvctrlpipe(udev, 0); 2527 err = usb_control_msg(udev, pipe, request, USB_TYPE_VENDOR | USB_DIR_IN, 2528 0, 0, buf, size, USB_CTRL_SET_TIMEOUT); 2529 if (err < 0) { 2530 BT_ERR("%s: Failed to access otp area (%d)", hdev->name, err); 2531 goto done; 2532 } 2533 2534 memcpy(data, buf, size); 2535 2536 done: 2537 kfree(buf); 2538 2539 return err; 2540 } 2541 2542 static int btusb_setup_qca_download_fw(struct hci_dev *hdev, 2543 const struct firmware *firmware, 2544 size_t hdr_size) 2545 { 2546 struct btusb_data *btdata = hci_get_drvdata(hdev); 2547 struct usb_device *udev = btdata->udev; 2548 size_t count, size, sent = 0; 2549 int pipe, len, err; 2550 u8 *buf; 2551 2552 buf = kmalloc(QCA_DFU_PACKET_LEN, GFP_KERNEL); 2553 if (!buf) 2554 return -ENOMEM; 2555 2556 count = firmware->size; 2557 2558 size = min_t(size_t, count, hdr_size); 2559 memcpy(buf, firmware->data, size); 2560 2561 /* USB patches should go down to controller through USB path 2562 * because binary format fits to go down through USB channel. 2563 * USB control path is for patching headers and USB bulk is for 2564 * patch body. 2565 */ 2566 pipe = usb_sndctrlpipe(udev, 0); 2567 err = usb_control_msg(udev, pipe, QCA_DFU_DOWNLOAD, USB_TYPE_VENDOR, 2568 0, 0, buf, size, USB_CTRL_SET_TIMEOUT); 2569 if (err < 0) { 2570 BT_ERR("%s: Failed to send headers (%d)", hdev->name, err); 2571 goto done; 2572 } 2573 2574 sent += size; 2575 count -= size; 2576 2577 while (count) { 2578 size = min_t(size_t, count, QCA_DFU_PACKET_LEN); 2579 2580 memcpy(buf, firmware->data + sent, size); 2581 2582 pipe = usb_sndbulkpipe(udev, 0x02); 2583 err = usb_bulk_msg(udev, pipe, buf, size, &len, 2584 QCA_DFU_TIMEOUT); 2585 if (err < 0) { 2586 BT_ERR("%s: Failed to send body at %zd of %zd (%d)", 2587 hdev->name, sent, firmware->size, err); 2588 break; 2589 } 2590 2591 if (size != len) { 2592 BT_ERR("%s: Failed to get bulk buffer", hdev->name); 2593 err = -EILSEQ; 2594 break; 2595 } 2596 2597 sent += size; 2598 count -= size; 2599 } 2600 2601 done: 2602 kfree(buf); 2603 return err; 2604 } 2605 2606 static int btusb_setup_qca_load_rampatch(struct hci_dev *hdev, 2607 struct qca_version *ver, 2608 const struct qca_device_info *info) 2609 { 2610 struct qca_rampatch_version *rver; 2611 const struct firmware *fw; 2612 u32 ver_rom, ver_patch; 2613 u16 rver_rom, rver_patch; 2614 char fwname[64]; 2615 int err; 2616 2617 ver_rom = le32_to_cpu(ver->rom_version); 2618 ver_patch = le32_to_cpu(ver->patch_version); 2619 2620 snprintf(fwname, sizeof(fwname), "qca/rampatch_usb_%08x.bin", ver_rom); 2621 2622 err = request_firmware(&fw, fwname, &hdev->dev); 2623 if (err) { 2624 BT_ERR("%s: failed to request rampatch file: %s (%d)", 2625 hdev->name, fwname, err); 2626 return err; 2627 } 2628 2629 BT_INFO("%s: using rampatch file: %s", hdev->name, fwname); 2630 2631 rver = (struct qca_rampatch_version *)(fw->data + info->ver_offset); 2632 rver_rom = le16_to_cpu(rver->rom_version); 2633 rver_patch = le16_to_cpu(rver->patch_version); 2634 2635 BT_INFO("%s: QCA: patch rome 0x%x build 0x%x, firmware rome 0x%x " 2636 "build 0x%x", hdev->name, rver_rom, rver_patch, ver_rom, 2637 ver_patch); 2638 2639 if (rver_rom != ver_rom || rver_patch <= ver_patch) { 2640 BT_ERR("%s: rampatch file version did not match with firmware", 2641 hdev->name); 2642 err = -EINVAL; 2643 goto done; 2644 } 2645 2646 err = btusb_setup_qca_download_fw(hdev, fw, info->rampatch_hdr); 2647 2648 done: 2649 release_firmware(fw); 2650 2651 return err; 2652 } 2653 2654 static int btusb_setup_qca_load_nvm(struct hci_dev *hdev, 2655 struct qca_version *ver, 2656 const struct qca_device_info *info) 2657 { 2658 const struct firmware *fw; 2659 char fwname[64]; 2660 int err; 2661 2662 snprintf(fwname, sizeof(fwname), "qca/nvm_usb_%08x.bin", 2663 le32_to_cpu(ver->rom_version)); 2664 2665 err = request_firmware(&fw, fwname, &hdev->dev); 2666 if (err) { 2667 BT_ERR("%s: failed to request NVM file: %s (%d)", 2668 hdev->name, fwname, err); 2669 return err; 2670 } 2671 2672 BT_INFO("%s: using NVM file: %s", hdev->name, fwname); 2673 2674 err = btusb_setup_qca_download_fw(hdev, fw, info->nvm_hdr); 2675 2676 release_firmware(fw); 2677 2678 return err; 2679 } 2680 2681 static int btusb_setup_qca(struct hci_dev *hdev) 2682 { 2683 const struct qca_device_info *info = NULL; 2684 struct qca_version ver; 2685 u32 ver_rom; 2686 u8 status; 2687 int i, err; 2688 2689 err = btusb_qca_send_vendor_req(hdev, QCA_GET_TARGET_VERSION, &ver, 2690 sizeof(ver)); 2691 if (err < 0) 2692 return err; 2693 2694 ver_rom = le32_to_cpu(ver.rom_version); 2695 for (i = 0; i < ARRAY_SIZE(qca_devices_table); i++) { 2696 if (ver_rom == qca_devices_table[i].rom_version) 2697 info = &qca_devices_table[i]; 2698 } 2699 if (!info) { 2700 BT_ERR("%s: don't support firmware rome 0x%x", hdev->name, 2701 ver_rom); 2702 return -ENODEV; 2703 } 2704 2705 err = btusb_qca_send_vendor_req(hdev, QCA_CHECK_STATUS, &status, 2706 sizeof(status)); 2707 if (err < 0) 2708 return err; 2709 2710 if (!(status & QCA_PATCH_UPDATED)) { 2711 err = btusb_setup_qca_load_rampatch(hdev, &ver, info); 2712 if (err < 0) 2713 return err; 2714 } 2715 2716 if (!(status & QCA_SYSCFG_UPDATED)) { 2717 err = btusb_setup_qca_load_nvm(hdev, &ver, info); 2718 if (err < 0) 2719 return err; 2720 } 2721 2722 return 0; 2723 } 2724 2725 #ifdef CONFIG_BT_HCIBTUSB_BCM 2726 static inline int __set_diag_interface(struct hci_dev *hdev) 2727 { 2728 struct btusb_data *data = hci_get_drvdata(hdev); 2729 struct usb_interface *intf = data->diag; 2730 int i; 2731 2732 if (!data->diag) 2733 return -ENODEV; 2734 2735 data->diag_tx_ep = NULL; 2736 data->diag_rx_ep = NULL; 2737 2738 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) { 2739 struct usb_endpoint_descriptor *ep_desc; 2740 2741 ep_desc = &intf->cur_altsetting->endpoint[i].desc; 2742 2743 if (!data->diag_tx_ep && usb_endpoint_is_bulk_out(ep_desc)) { 2744 data->diag_tx_ep = ep_desc; 2745 continue; 2746 } 2747 2748 if (!data->diag_rx_ep && usb_endpoint_is_bulk_in(ep_desc)) { 2749 data->diag_rx_ep = ep_desc; 2750 continue; 2751 } 2752 } 2753 2754 if (!data->diag_tx_ep || !data->diag_rx_ep) { 2755 BT_ERR("%s invalid diagnostic descriptors", hdev->name); 2756 return -ENODEV; 2757 } 2758 2759 return 0; 2760 } 2761 2762 static struct urb *alloc_diag_urb(struct hci_dev *hdev, bool enable) 2763 { 2764 struct btusb_data *data = hci_get_drvdata(hdev); 2765 struct sk_buff *skb; 2766 struct urb *urb; 2767 unsigned int pipe; 2768 2769 if (!data->diag_tx_ep) 2770 return ERR_PTR(-ENODEV); 2771 2772 urb = usb_alloc_urb(0, GFP_KERNEL); 2773 if (!urb) 2774 return ERR_PTR(-ENOMEM); 2775 2776 skb = bt_skb_alloc(2, GFP_KERNEL); 2777 if (!skb) { 2778 usb_free_urb(urb); 2779 return ERR_PTR(-ENOMEM); 2780 } 2781 2782 skb_put_u8(skb, 0xf0); 2783 skb_put_u8(skb, enable); 2784 2785 pipe = usb_sndbulkpipe(data->udev, data->diag_tx_ep->bEndpointAddress); 2786 2787 usb_fill_bulk_urb(urb, data->udev, pipe, 2788 skb->data, skb->len, btusb_tx_complete, skb); 2789 2790 skb->dev = (void *)hdev; 2791 2792 return urb; 2793 } 2794 2795 static int btusb_bcm_set_diag(struct hci_dev *hdev, bool enable) 2796 { 2797 struct btusb_data *data = hci_get_drvdata(hdev); 2798 struct urb *urb; 2799 2800 if (!data->diag) 2801 return -ENODEV; 2802 2803 if (!test_bit(HCI_RUNNING, &hdev->flags)) 2804 return -ENETDOWN; 2805 2806 urb = alloc_diag_urb(hdev, enable); 2807 if (IS_ERR(urb)) 2808 return PTR_ERR(urb); 2809 2810 return submit_or_queue_tx_urb(hdev, urb); 2811 } 2812 #endif 2813 2814 #ifdef CONFIG_PM 2815 static irqreturn_t btusb_oob_wake_handler(int irq, void *priv) 2816 { 2817 struct btusb_data *data = priv; 2818 2819 pm_wakeup_event(&data->udev->dev, 0); 2820 pm_system_wakeup(); 2821 2822 /* Disable only if not already disabled (keep it balanced) */ 2823 if (test_and_clear_bit(BTUSB_OOB_WAKE_ENABLED, &data->flags)) { 2824 disable_irq_nosync(irq); 2825 disable_irq_wake(irq); 2826 } 2827 return IRQ_HANDLED; 2828 } 2829 2830 static const struct of_device_id btusb_match_table[] = { 2831 { .compatible = "usb1286,204e" }, 2832 { } 2833 }; 2834 MODULE_DEVICE_TABLE(of, btusb_match_table); 2835 2836 /* Use an oob wakeup pin? */ 2837 static int btusb_config_oob_wake(struct hci_dev *hdev) 2838 { 2839 struct btusb_data *data = hci_get_drvdata(hdev); 2840 struct device *dev = &data->udev->dev; 2841 int irq, ret; 2842 2843 clear_bit(BTUSB_OOB_WAKE_ENABLED, &data->flags); 2844 2845 if (!of_match_device(btusb_match_table, dev)) 2846 return 0; 2847 2848 /* Move on if no IRQ specified */ 2849 irq = of_irq_get_byname(dev->of_node, "wakeup"); 2850 if (irq <= 0) { 2851 bt_dev_dbg(hdev, "%s: no OOB Wakeup IRQ in DT", __func__); 2852 return 0; 2853 } 2854 2855 ret = devm_request_irq(&hdev->dev, irq, btusb_oob_wake_handler, 2856 0, "OOB Wake-on-BT", data); 2857 if (ret) { 2858 bt_dev_err(hdev, "%s: IRQ request failed", __func__); 2859 return ret; 2860 } 2861 2862 ret = device_init_wakeup(dev, true); 2863 if (ret) { 2864 bt_dev_err(hdev, "%s: failed to init_wakeup", __func__); 2865 return ret; 2866 } 2867 2868 data->oob_wake_irq = irq; 2869 disable_irq(irq); 2870 bt_dev_info(hdev, "OOB Wake-on-BT configured at IRQ %u", irq); 2871 return 0; 2872 } 2873 #endif 2874 2875 static int btusb_probe(struct usb_interface *intf, 2876 const struct usb_device_id *id) 2877 { 2878 struct usb_endpoint_descriptor *ep_desc; 2879 struct btusb_data *data; 2880 struct hci_dev *hdev; 2881 unsigned ifnum_base; 2882 int i, err; 2883 2884 BT_DBG("intf %p id %p", intf, id); 2885 2886 /* interface numbers are hardcoded in the spec */ 2887 if (intf->cur_altsetting->desc.bInterfaceNumber != 0) { 2888 if (!(id->driver_info & BTUSB_IFNUM_2)) 2889 return -ENODEV; 2890 if (intf->cur_altsetting->desc.bInterfaceNumber != 2) 2891 return -ENODEV; 2892 } 2893 2894 ifnum_base = intf->cur_altsetting->desc.bInterfaceNumber; 2895 2896 if (!id->driver_info) { 2897 const struct usb_device_id *match; 2898 2899 match = usb_match_id(intf, blacklist_table); 2900 if (match) 2901 id = match; 2902 } 2903 2904 if (id->driver_info == BTUSB_IGNORE) 2905 return -ENODEV; 2906 2907 if (id->driver_info & BTUSB_ATH3012) { 2908 struct usb_device *udev = interface_to_usbdev(intf); 2909 2910 /* Old firmware would otherwise let ath3k driver load 2911 * patch and sysconfig files 2912 */ 2913 if (le16_to_cpu(udev->descriptor.bcdDevice) <= 0x0001) 2914 return -ENODEV; 2915 } 2916 2917 data = devm_kzalloc(&intf->dev, sizeof(*data), GFP_KERNEL); 2918 if (!data) 2919 return -ENOMEM; 2920 2921 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) { 2922 ep_desc = &intf->cur_altsetting->endpoint[i].desc; 2923 2924 if (!data->intr_ep && usb_endpoint_is_int_in(ep_desc)) { 2925 data->intr_ep = ep_desc; 2926 continue; 2927 } 2928 2929 if (!data->bulk_tx_ep && usb_endpoint_is_bulk_out(ep_desc)) { 2930 data->bulk_tx_ep = ep_desc; 2931 continue; 2932 } 2933 2934 if (!data->bulk_rx_ep && usb_endpoint_is_bulk_in(ep_desc)) { 2935 data->bulk_rx_ep = ep_desc; 2936 continue; 2937 } 2938 } 2939 2940 if (!data->intr_ep || !data->bulk_tx_ep || !data->bulk_rx_ep) 2941 return -ENODEV; 2942 2943 if (id->driver_info & BTUSB_AMP) { 2944 data->cmdreq_type = USB_TYPE_CLASS | 0x01; 2945 data->cmdreq = 0x2b; 2946 } else { 2947 data->cmdreq_type = USB_TYPE_CLASS; 2948 data->cmdreq = 0x00; 2949 } 2950 2951 data->udev = interface_to_usbdev(intf); 2952 data->intf = intf; 2953 2954 INIT_WORK(&data->work, btusb_work); 2955 INIT_WORK(&data->waker, btusb_waker); 2956 init_usb_anchor(&data->deferred); 2957 init_usb_anchor(&data->tx_anchor); 2958 spin_lock_init(&data->txlock); 2959 2960 init_usb_anchor(&data->intr_anchor); 2961 init_usb_anchor(&data->bulk_anchor); 2962 init_usb_anchor(&data->isoc_anchor); 2963 init_usb_anchor(&data->diag_anchor); 2964 spin_lock_init(&data->rxlock); 2965 2966 if (id->driver_info & BTUSB_INTEL_NEW) { 2967 data->recv_event = btusb_recv_event_intel; 2968 data->recv_bulk = btusb_recv_bulk_intel; 2969 set_bit(BTUSB_BOOTLOADER, &data->flags); 2970 } else { 2971 data->recv_event = hci_recv_frame; 2972 data->recv_bulk = btusb_recv_bulk; 2973 } 2974 2975 hdev = hci_alloc_dev(); 2976 if (!hdev) 2977 return -ENOMEM; 2978 2979 hdev->bus = HCI_USB; 2980 hci_set_drvdata(hdev, data); 2981 2982 if (id->driver_info & BTUSB_AMP) 2983 hdev->dev_type = HCI_AMP; 2984 else 2985 hdev->dev_type = HCI_PRIMARY; 2986 2987 data->hdev = hdev; 2988 2989 SET_HCIDEV_DEV(hdev, &intf->dev); 2990 2991 hdev->open = btusb_open; 2992 hdev->close = btusb_close; 2993 hdev->flush = btusb_flush; 2994 hdev->send = btusb_send_frame; 2995 hdev->notify = btusb_notify; 2996 2997 #ifdef CONFIG_PM 2998 err = btusb_config_oob_wake(hdev); 2999 if (err) 3000 goto out_free_dev; 3001 3002 /* Marvell devices may need a specific chip configuration */ 3003 if (id->driver_info & BTUSB_MARVELL && data->oob_wake_irq) { 3004 err = marvell_config_oob_wake(hdev); 3005 if (err) 3006 goto out_free_dev; 3007 } 3008 #endif 3009 if (id->driver_info & BTUSB_CW6622) 3010 set_bit(HCI_QUIRK_BROKEN_STORED_LINK_KEY, &hdev->quirks); 3011 3012 if (id->driver_info & BTUSB_BCM2045) 3013 set_bit(HCI_QUIRK_BROKEN_STORED_LINK_KEY, &hdev->quirks); 3014 3015 if (id->driver_info & BTUSB_BCM92035) 3016 hdev->setup = btusb_setup_bcm92035; 3017 3018 #ifdef CONFIG_BT_HCIBTUSB_BCM 3019 if (id->driver_info & BTUSB_BCM_PATCHRAM) { 3020 hdev->manufacturer = 15; 3021 hdev->setup = btbcm_setup_patchram; 3022 hdev->set_diag = btusb_bcm_set_diag; 3023 hdev->set_bdaddr = btbcm_set_bdaddr; 3024 3025 /* Broadcom LM_DIAG Interface numbers are hardcoded */ 3026 data->diag = usb_ifnum_to_if(data->udev, ifnum_base + 2); 3027 } 3028 3029 if (id->driver_info & BTUSB_BCM_APPLE) { 3030 hdev->manufacturer = 15; 3031 hdev->setup = btbcm_setup_apple; 3032 hdev->set_diag = btusb_bcm_set_diag; 3033 3034 /* Broadcom LM_DIAG Interface numbers are hardcoded */ 3035 data->diag = usb_ifnum_to_if(data->udev, ifnum_base + 2); 3036 } 3037 #endif 3038 3039 if (id->driver_info & BTUSB_INTEL) { 3040 hdev->manufacturer = 2; 3041 hdev->setup = btusb_setup_intel; 3042 hdev->shutdown = btusb_shutdown_intel; 3043 hdev->set_diag = btintel_set_diag_mfg; 3044 hdev->set_bdaddr = btintel_set_bdaddr; 3045 set_bit(HCI_QUIRK_STRICT_DUPLICATE_FILTER, &hdev->quirks); 3046 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks); 3047 set_bit(HCI_QUIRK_NON_PERSISTENT_DIAG, &hdev->quirks); 3048 } 3049 3050 if (id->driver_info & BTUSB_INTEL_NEW) { 3051 hdev->manufacturer = 2; 3052 hdev->send = btusb_send_frame_intel; 3053 hdev->setup = btusb_setup_intel_new; 3054 hdev->hw_error = btintel_hw_error; 3055 hdev->set_diag = btintel_set_diag; 3056 hdev->set_bdaddr = btintel_set_bdaddr; 3057 set_bit(HCI_QUIRK_STRICT_DUPLICATE_FILTER, &hdev->quirks); 3058 set_bit(HCI_QUIRK_NON_PERSISTENT_DIAG, &hdev->quirks); 3059 } 3060 3061 if (id->driver_info & BTUSB_MARVELL) 3062 hdev->set_bdaddr = btusb_set_bdaddr_marvell; 3063 3064 if (id->driver_info & BTUSB_SWAVE) { 3065 set_bit(HCI_QUIRK_FIXUP_INQUIRY_MODE, &hdev->quirks); 3066 set_bit(HCI_QUIRK_BROKEN_LOCAL_COMMANDS, &hdev->quirks); 3067 } 3068 3069 if (id->driver_info & BTUSB_INTEL_BOOT) { 3070 hdev->manufacturer = 2; 3071 set_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks); 3072 } 3073 3074 if (id->driver_info & BTUSB_ATH3012) { 3075 hdev->set_bdaddr = btusb_set_bdaddr_ath3012; 3076 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks); 3077 set_bit(HCI_QUIRK_STRICT_DUPLICATE_FILTER, &hdev->quirks); 3078 } 3079 3080 if (id->driver_info & BTUSB_QCA_ROME) { 3081 data->setup_on_usb = btusb_setup_qca; 3082 hdev->set_bdaddr = btusb_set_bdaddr_ath3012; 3083 3084 /* QCA Rome devices lose their updated firmware over suspend, 3085 * but the USB hub doesn't notice any status change. 3086 * Explicitly request a device reset on resume. 3087 */ 3088 set_bit(BTUSB_RESET_RESUME, &data->flags); 3089 } 3090 3091 #ifdef CONFIG_BT_HCIBTUSB_RTL 3092 if (id->driver_info & BTUSB_REALTEK) { 3093 hdev->setup = btrtl_setup_realtek; 3094 3095 /* Realtek devices lose their updated firmware over suspend, 3096 * but the USB hub doesn't notice any status change. 3097 * Explicitly request a device reset on resume. 3098 */ 3099 set_bit(BTUSB_RESET_RESUME, &data->flags); 3100 } 3101 #endif 3102 3103 if (id->driver_info & BTUSB_AMP) { 3104 /* AMP controllers do not support SCO packets */ 3105 data->isoc = NULL; 3106 } else { 3107 /* Interface orders are hardcoded in the specification */ 3108 data->isoc = usb_ifnum_to_if(data->udev, ifnum_base + 1); 3109 } 3110 3111 if (!reset) 3112 set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks); 3113 3114 if (force_scofix || id->driver_info & BTUSB_WRONG_SCO_MTU) { 3115 if (!disable_scofix) 3116 set_bit(HCI_QUIRK_FIXUP_BUFFER_SIZE, &hdev->quirks); 3117 } 3118 3119 if (id->driver_info & BTUSB_BROKEN_ISOC) 3120 data->isoc = NULL; 3121 3122 if (id->driver_info & BTUSB_DIGIANSWER) { 3123 data->cmdreq_type = USB_TYPE_VENDOR; 3124 set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks); 3125 } 3126 3127 if (id->driver_info & BTUSB_CSR) { 3128 struct usb_device *udev = data->udev; 3129 u16 bcdDevice = le16_to_cpu(udev->descriptor.bcdDevice); 3130 3131 /* Old firmware would otherwise execute USB reset */ 3132 if (bcdDevice < 0x117) 3133 set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks); 3134 3135 /* Fake CSR devices with broken commands */ 3136 if (bcdDevice <= 0x100 || bcdDevice == 0x134) 3137 hdev->setup = btusb_setup_csr; 3138 3139 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks); 3140 } 3141 3142 if (id->driver_info & BTUSB_SNIFFER) { 3143 struct usb_device *udev = data->udev; 3144 3145 /* New sniffer firmware has crippled HCI interface */ 3146 if (le16_to_cpu(udev->descriptor.bcdDevice) > 0x997) 3147 set_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks); 3148 } 3149 3150 if (id->driver_info & BTUSB_INTEL_BOOT) { 3151 /* A bug in the bootloader causes that interrupt interface is 3152 * only enabled after receiving SetInterface(0, AltSetting=0). 3153 */ 3154 err = usb_set_interface(data->udev, 0, 0); 3155 if (err < 0) { 3156 BT_ERR("failed to set interface 0, alt 0 %d", err); 3157 goto out_free_dev; 3158 } 3159 } 3160 3161 if (data->isoc) { 3162 err = usb_driver_claim_interface(&btusb_driver, 3163 data->isoc, data); 3164 if (err < 0) 3165 goto out_free_dev; 3166 } 3167 3168 #ifdef CONFIG_BT_HCIBTUSB_BCM 3169 if (data->diag) { 3170 if (!usb_driver_claim_interface(&btusb_driver, 3171 data->diag, data)) 3172 __set_diag_interface(hdev); 3173 else 3174 data->diag = NULL; 3175 } 3176 #endif 3177 3178 err = hci_register_dev(hdev); 3179 if (err < 0) 3180 goto out_free_dev; 3181 3182 usb_set_intfdata(intf, data); 3183 3184 return 0; 3185 3186 out_free_dev: 3187 hci_free_dev(hdev); 3188 return err; 3189 } 3190 3191 static void btusb_disconnect(struct usb_interface *intf) 3192 { 3193 struct btusb_data *data = usb_get_intfdata(intf); 3194 struct hci_dev *hdev; 3195 3196 BT_DBG("intf %p", intf); 3197 3198 if (!data) 3199 return; 3200 3201 hdev = data->hdev; 3202 usb_set_intfdata(data->intf, NULL); 3203 3204 if (data->isoc) 3205 usb_set_intfdata(data->isoc, NULL); 3206 3207 if (data->diag) 3208 usb_set_intfdata(data->diag, NULL); 3209 3210 hci_unregister_dev(hdev); 3211 3212 if (intf == data->intf) { 3213 if (data->isoc) 3214 usb_driver_release_interface(&btusb_driver, data->isoc); 3215 if (data->diag) 3216 usb_driver_release_interface(&btusb_driver, data->diag); 3217 } else if (intf == data->isoc) { 3218 if (data->diag) 3219 usb_driver_release_interface(&btusb_driver, data->diag); 3220 usb_driver_release_interface(&btusb_driver, data->intf); 3221 } else if (intf == data->diag) { 3222 usb_driver_release_interface(&btusb_driver, data->intf); 3223 if (data->isoc) 3224 usb_driver_release_interface(&btusb_driver, data->isoc); 3225 } 3226 3227 if (data->oob_wake_irq) 3228 device_init_wakeup(&data->udev->dev, false); 3229 3230 hci_free_dev(hdev); 3231 } 3232 3233 #ifdef CONFIG_PM 3234 static int btusb_suspend(struct usb_interface *intf, pm_message_t message) 3235 { 3236 struct btusb_data *data = usb_get_intfdata(intf); 3237 3238 BT_DBG("intf %p", intf); 3239 3240 if (data->suspend_count++) 3241 return 0; 3242 3243 spin_lock_irq(&data->txlock); 3244 if (!(PMSG_IS_AUTO(message) && data->tx_in_flight)) { 3245 set_bit(BTUSB_SUSPENDING, &data->flags); 3246 spin_unlock_irq(&data->txlock); 3247 } else { 3248 spin_unlock_irq(&data->txlock); 3249 data->suspend_count--; 3250 return -EBUSY; 3251 } 3252 3253 cancel_work_sync(&data->work); 3254 3255 btusb_stop_traffic(data); 3256 usb_kill_anchored_urbs(&data->tx_anchor); 3257 3258 if (data->oob_wake_irq && device_may_wakeup(&data->udev->dev)) { 3259 set_bit(BTUSB_OOB_WAKE_ENABLED, &data->flags); 3260 enable_irq_wake(data->oob_wake_irq); 3261 enable_irq(data->oob_wake_irq); 3262 } 3263 3264 /* Optionally request a device reset on resume, but only when 3265 * wakeups are disabled. If wakeups are enabled we assume the 3266 * device will stay powered up throughout suspend. 3267 */ 3268 if (test_bit(BTUSB_RESET_RESUME, &data->flags) && 3269 !device_may_wakeup(&data->udev->dev)) 3270 data->udev->reset_resume = 1; 3271 3272 return 0; 3273 } 3274 3275 static void play_deferred(struct btusb_data *data) 3276 { 3277 struct urb *urb; 3278 int err; 3279 3280 while ((urb = usb_get_from_anchor(&data->deferred))) { 3281 usb_anchor_urb(urb, &data->tx_anchor); 3282 3283 err = usb_submit_urb(urb, GFP_ATOMIC); 3284 if (err < 0) { 3285 if (err != -EPERM && err != -ENODEV) 3286 BT_ERR("%s urb %p submission failed (%d)", 3287 data->hdev->name, urb, -err); 3288 kfree(urb->setup_packet); 3289 usb_unanchor_urb(urb); 3290 usb_free_urb(urb); 3291 break; 3292 } 3293 3294 data->tx_in_flight++; 3295 usb_free_urb(urb); 3296 } 3297 3298 /* Cleanup the rest deferred urbs. */ 3299 while ((urb = usb_get_from_anchor(&data->deferred))) { 3300 kfree(urb->setup_packet); 3301 usb_free_urb(urb); 3302 } 3303 } 3304 3305 static int btusb_resume(struct usb_interface *intf) 3306 { 3307 struct btusb_data *data = usb_get_intfdata(intf); 3308 struct hci_dev *hdev = data->hdev; 3309 int err = 0; 3310 3311 BT_DBG("intf %p", intf); 3312 3313 if (--data->suspend_count) 3314 return 0; 3315 3316 /* Disable only if not already disabled (keep it balanced) */ 3317 if (test_and_clear_bit(BTUSB_OOB_WAKE_ENABLED, &data->flags)) { 3318 disable_irq(data->oob_wake_irq); 3319 disable_irq_wake(data->oob_wake_irq); 3320 } 3321 3322 if (!test_bit(HCI_RUNNING, &hdev->flags)) 3323 goto done; 3324 3325 if (test_bit(BTUSB_INTR_RUNNING, &data->flags)) { 3326 err = btusb_submit_intr_urb(hdev, GFP_NOIO); 3327 if (err < 0) { 3328 clear_bit(BTUSB_INTR_RUNNING, &data->flags); 3329 goto failed; 3330 } 3331 } 3332 3333 if (test_bit(BTUSB_BULK_RUNNING, &data->flags)) { 3334 err = btusb_submit_bulk_urb(hdev, GFP_NOIO); 3335 if (err < 0) { 3336 clear_bit(BTUSB_BULK_RUNNING, &data->flags); 3337 goto failed; 3338 } 3339 3340 btusb_submit_bulk_urb(hdev, GFP_NOIO); 3341 } 3342 3343 if (test_bit(BTUSB_ISOC_RUNNING, &data->flags)) { 3344 if (btusb_submit_isoc_urb(hdev, GFP_NOIO) < 0) 3345 clear_bit(BTUSB_ISOC_RUNNING, &data->flags); 3346 else 3347 btusb_submit_isoc_urb(hdev, GFP_NOIO); 3348 } 3349 3350 spin_lock_irq(&data->txlock); 3351 play_deferred(data); 3352 clear_bit(BTUSB_SUSPENDING, &data->flags); 3353 spin_unlock_irq(&data->txlock); 3354 schedule_work(&data->work); 3355 3356 return 0; 3357 3358 failed: 3359 usb_scuttle_anchored_urbs(&data->deferred); 3360 done: 3361 spin_lock_irq(&data->txlock); 3362 clear_bit(BTUSB_SUSPENDING, &data->flags); 3363 spin_unlock_irq(&data->txlock); 3364 3365 return err; 3366 } 3367 #endif 3368 3369 static struct usb_driver btusb_driver = { 3370 .name = "btusb", 3371 .probe = btusb_probe, 3372 .disconnect = btusb_disconnect, 3373 #ifdef CONFIG_PM 3374 .suspend = btusb_suspend, 3375 .resume = btusb_resume, 3376 #endif 3377 .id_table = btusb_table, 3378 .supports_autosuspend = 1, 3379 .disable_hub_initiated_lpm = 1, 3380 }; 3381 3382 module_usb_driver(btusb_driver); 3383 3384 module_param(disable_scofix, bool, 0644); 3385 MODULE_PARM_DESC(disable_scofix, "Disable fixup of wrong SCO buffer size"); 3386 3387 module_param(force_scofix, bool, 0644); 3388 MODULE_PARM_DESC(force_scofix, "Force fixup of wrong SCO buffers size"); 3389 3390 module_param(reset, bool, 0644); 3391 MODULE_PARM_DESC(reset, "Send HCI reset command on initialization"); 3392 3393 MODULE_AUTHOR("Marcel Holtmann <marcel@holtmann.org>"); 3394 MODULE_DESCRIPTION("Generic Bluetooth USB driver ver " VERSION); 3395 MODULE_VERSION(VERSION); 3396 MODULE_LICENSE("GPL"); 3397