1 // SPDX-License-Identifier: GPL-2.0-or-later 2 /* 3 * 4 * Generic Bluetooth USB driver 5 * 6 * Copyright (C) 2005-2008 Marcel Holtmann <marcel@holtmann.org> 7 */ 8 9 #include <linux/dmi.h> 10 #include <linux/module.h> 11 #include <linux/usb.h> 12 #include <linux/usb/quirks.h> 13 #include <linux/firmware.h> 14 #include <linux/of_device.h> 15 #include <linux/of_irq.h> 16 #include <linux/suspend.h> 17 #include <linux/gpio/consumer.h> 18 #include <asm/unaligned.h> 19 20 #include <net/bluetooth/bluetooth.h> 21 #include <net/bluetooth/hci_core.h> 22 23 #include "btintel.h" 24 #include "btbcm.h" 25 #include "btrtl.h" 26 27 #define VERSION "0.8" 28 29 static bool disable_scofix; 30 static bool force_scofix; 31 static bool enable_autosuspend = IS_ENABLED(CONFIG_BT_HCIBTUSB_AUTOSUSPEND); 32 33 static bool reset = true; 34 35 static struct usb_driver btusb_driver; 36 37 #define BTUSB_IGNORE 0x01 38 #define BTUSB_DIGIANSWER 0x02 39 #define BTUSB_CSR 0x04 40 #define BTUSB_SNIFFER 0x08 41 #define BTUSB_BCM92035 0x10 42 #define BTUSB_BROKEN_ISOC 0x20 43 #define BTUSB_WRONG_SCO_MTU 0x40 44 #define BTUSB_ATH3012 0x80 45 #define BTUSB_INTEL 0x100 46 #define BTUSB_INTEL_BOOT 0x200 47 #define BTUSB_BCM_PATCHRAM 0x400 48 #define BTUSB_MARVELL 0x800 49 #define BTUSB_SWAVE 0x1000 50 #define BTUSB_INTEL_NEW 0x2000 51 #define BTUSB_AMP 0x4000 52 #define BTUSB_QCA_ROME 0x8000 53 #define BTUSB_BCM_APPLE 0x10000 54 #define BTUSB_REALTEK 0x20000 55 #define BTUSB_BCM2045 0x40000 56 #define BTUSB_IFNUM_2 0x80000 57 #define BTUSB_CW6622 0x100000 58 59 static const struct usb_device_id btusb_table[] = { 60 /* Generic Bluetooth USB device */ 61 { USB_DEVICE_INFO(0xe0, 0x01, 0x01) }, 62 63 /* Generic Bluetooth AMP device */ 64 { USB_DEVICE_INFO(0xe0, 0x01, 0x04), .driver_info = BTUSB_AMP }, 65 66 /* Generic Bluetooth USB interface */ 67 { USB_INTERFACE_INFO(0xe0, 0x01, 0x01) }, 68 69 /* Apple-specific (Broadcom) devices */ 70 { USB_VENDOR_AND_INTERFACE_INFO(0x05ac, 0xff, 0x01, 0x01), 71 .driver_info = BTUSB_BCM_APPLE | BTUSB_IFNUM_2 }, 72 73 /* MediaTek MT76x0E */ 74 { USB_DEVICE(0x0e8d, 0x763f) }, 75 76 /* Broadcom SoftSailing reporting vendor specific */ 77 { USB_DEVICE(0x0a5c, 0x21e1) }, 78 79 /* Apple MacBookPro 7,1 */ 80 { USB_DEVICE(0x05ac, 0x8213) }, 81 82 /* Apple iMac11,1 */ 83 { USB_DEVICE(0x05ac, 0x8215) }, 84 85 /* Apple MacBookPro6,2 */ 86 { USB_DEVICE(0x05ac, 0x8218) }, 87 88 /* Apple MacBookAir3,1, MacBookAir3,2 */ 89 { USB_DEVICE(0x05ac, 0x821b) }, 90 91 /* Apple MacBookAir4,1 */ 92 { USB_DEVICE(0x05ac, 0x821f) }, 93 94 /* Apple MacBookPro8,2 */ 95 { USB_DEVICE(0x05ac, 0x821a) }, 96 97 /* Apple MacMini5,1 */ 98 { USB_DEVICE(0x05ac, 0x8281) }, 99 100 /* AVM BlueFRITZ! USB v2.0 */ 101 { USB_DEVICE(0x057c, 0x3800), .driver_info = BTUSB_SWAVE }, 102 103 /* Bluetooth Ultraport Module from IBM */ 104 { USB_DEVICE(0x04bf, 0x030a) }, 105 106 /* ALPS Modules with non-standard id */ 107 { USB_DEVICE(0x044e, 0x3001) }, 108 { USB_DEVICE(0x044e, 0x3002) }, 109 110 /* Ericsson with non-standard id */ 111 { USB_DEVICE(0x0bdb, 0x1002) }, 112 113 /* Canyon CN-BTU1 with HID interfaces */ 114 { USB_DEVICE(0x0c10, 0x0000) }, 115 116 /* Broadcom BCM20702A0 */ 117 { USB_DEVICE(0x413c, 0x8197) }, 118 119 /* Broadcom BCM20702B0 (Dynex/Insignia) */ 120 { USB_DEVICE(0x19ff, 0x0239), .driver_info = BTUSB_BCM_PATCHRAM }, 121 122 /* Broadcom BCM43142A0 (Foxconn/Lenovo) */ 123 { USB_VENDOR_AND_INTERFACE_INFO(0x105b, 0xff, 0x01, 0x01), 124 .driver_info = BTUSB_BCM_PATCHRAM }, 125 126 /* Broadcom BCM920703 (HTC Vive) */ 127 { USB_VENDOR_AND_INTERFACE_INFO(0x0bb4, 0xff, 0x01, 0x01), 128 .driver_info = BTUSB_BCM_PATCHRAM }, 129 130 /* Foxconn - Hon Hai */ 131 { USB_VENDOR_AND_INTERFACE_INFO(0x0489, 0xff, 0x01, 0x01), 132 .driver_info = BTUSB_BCM_PATCHRAM }, 133 134 /* Lite-On Technology - Broadcom based */ 135 { USB_VENDOR_AND_INTERFACE_INFO(0x04ca, 0xff, 0x01, 0x01), 136 .driver_info = BTUSB_BCM_PATCHRAM }, 137 138 /* Broadcom devices with vendor specific id */ 139 { USB_VENDOR_AND_INTERFACE_INFO(0x0a5c, 0xff, 0x01, 0x01), 140 .driver_info = BTUSB_BCM_PATCHRAM }, 141 142 /* ASUSTek Computer - Broadcom based */ 143 { USB_VENDOR_AND_INTERFACE_INFO(0x0b05, 0xff, 0x01, 0x01), 144 .driver_info = BTUSB_BCM_PATCHRAM }, 145 146 /* Belkin F8065bf - Broadcom based */ 147 { USB_VENDOR_AND_INTERFACE_INFO(0x050d, 0xff, 0x01, 0x01), 148 .driver_info = BTUSB_BCM_PATCHRAM }, 149 150 /* IMC Networks - Broadcom based */ 151 { USB_VENDOR_AND_INTERFACE_INFO(0x13d3, 0xff, 0x01, 0x01), 152 .driver_info = BTUSB_BCM_PATCHRAM }, 153 154 /* Dell Computer - Broadcom based */ 155 { USB_VENDOR_AND_INTERFACE_INFO(0x413c, 0xff, 0x01, 0x01), 156 .driver_info = BTUSB_BCM_PATCHRAM }, 157 158 /* Toshiba Corp - Broadcom based */ 159 { USB_VENDOR_AND_INTERFACE_INFO(0x0930, 0xff, 0x01, 0x01), 160 .driver_info = BTUSB_BCM_PATCHRAM }, 161 162 /* Intel Bluetooth USB Bootloader (RAM module) */ 163 { USB_DEVICE(0x8087, 0x0a5a), 164 .driver_info = BTUSB_INTEL_BOOT | BTUSB_BROKEN_ISOC }, 165 166 { } /* Terminating entry */ 167 }; 168 169 MODULE_DEVICE_TABLE(usb, btusb_table); 170 171 static const struct usb_device_id blacklist_table[] = { 172 /* CSR BlueCore devices */ 173 { USB_DEVICE(0x0a12, 0x0001), .driver_info = BTUSB_CSR }, 174 175 /* Broadcom BCM2033 without firmware */ 176 { USB_DEVICE(0x0a5c, 0x2033), .driver_info = BTUSB_IGNORE }, 177 178 /* Broadcom BCM2045 devices */ 179 { USB_DEVICE(0x0a5c, 0x2045), .driver_info = BTUSB_BCM2045 }, 180 181 /* Atheros 3011 with sflash firmware */ 182 { USB_DEVICE(0x0489, 0xe027), .driver_info = BTUSB_IGNORE }, 183 { USB_DEVICE(0x0489, 0xe03d), .driver_info = BTUSB_IGNORE }, 184 { USB_DEVICE(0x04f2, 0xaff1), .driver_info = BTUSB_IGNORE }, 185 { USB_DEVICE(0x0930, 0x0215), .driver_info = BTUSB_IGNORE }, 186 { USB_DEVICE(0x0cf3, 0x3002), .driver_info = BTUSB_IGNORE }, 187 { USB_DEVICE(0x0cf3, 0xe019), .driver_info = BTUSB_IGNORE }, 188 { USB_DEVICE(0x13d3, 0x3304), .driver_info = BTUSB_IGNORE }, 189 190 /* Atheros AR9285 Malbec with sflash firmware */ 191 { USB_DEVICE(0x03f0, 0x311d), .driver_info = BTUSB_IGNORE }, 192 193 /* Atheros 3012 with sflash firmware */ 194 { USB_DEVICE(0x0489, 0xe04d), .driver_info = BTUSB_ATH3012 }, 195 { USB_DEVICE(0x0489, 0xe04e), .driver_info = BTUSB_ATH3012 }, 196 { USB_DEVICE(0x0489, 0xe056), .driver_info = BTUSB_ATH3012 }, 197 { USB_DEVICE(0x0489, 0xe057), .driver_info = BTUSB_ATH3012 }, 198 { USB_DEVICE(0x0489, 0xe05f), .driver_info = BTUSB_ATH3012 }, 199 { USB_DEVICE(0x0489, 0xe076), .driver_info = BTUSB_ATH3012 }, 200 { USB_DEVICE(0x0489, 0xe078), .driver_info = BTUSB_ATH3012 }, 201 { USB_DEVICE(0x0489, 0xe095), .driver_info = BTUSB_ATH3012 }, 202 { USB_DEVICE(0x04c5, 0x1330), .driver_info = BTUSB_ATH3012 }, 203 { USB_DEVICE(0x04ca, 0x3004), .driver_info = BTUSB_ATH3012 }, 204 { USB_DEVICE(0x04ca, 0x3005), .driver_info = BTUSB_ATH3012 }, 205 { USB_DEVICE(0x04ca, 0x3006), .driver_info = BTUSB_ATH3012 }, 206 { USB_DEVICE(0x04ca, 0x3007), .driver_info = BTUSB_ATH3012 }, 207 { USB_DEVICE(0x04ca, 0x3008), .driver_info = BTUSB_ATH3012 }, 208 { USB_DEVICE(0x04ca, 0x300b), .driver_info = BTUSB_ATH3012 }, 209 { USB_DEVICE(0x04ca, 0x300d), .driver_info = BTUSB_ATH3012 }, 210 { USB_DEVICE(0x04ca, 0x300f), .driver_info = BTUSB_ATH3012 }, 211 { USB_DEVICE(0x04ca, 0x3010), .driver_info = BTUSB_ATH3012 }, 212 { USB_DEVICE(0x04ca, 0x3014), .driver_info = BTUSB_ATH3012 }, 213 { USB_DEVICE(0x04ca, 0x3018), .driver_info = BTUSB_ATH3012 }, 214 { USB_DEVICE(0x0930, 0x0219), .driver_info = BTUSB_ATH3012 }, 215 { USB_DEVICE(0x0930, 0x021c), .driver_info = BTUSB_ATH3012 }, 216 { USB_DEVICE(0x0930, 0x0220), .driver_info = BTUSB_ATH3012 }, 217 { USB_DEVICE(0x0930, 0x0227), .driver_info = BTUSB_ATH3012 }, 218 { USB_DEVICE(0x0b05, 0x17d0), .driver_info = BTUSB_ATH3012 }, 219 { USB_DEVICE(0x0cf3, 0x0036), .driver_info = BTUSB_ATH3012 }, 220 { USB_DEVICE(0x0cf3, 0x3004), .driver_info = BTUSB_ATH3012 }, 221 { USB_DEVICE(0x0cf3, 0x3008), .driver_info = BTUSB_ATH3012 }, 222 { USB_DEVICE(0x0cf3, 0x311d), .driver_info = BTUSB_ATH3012 }, 223 { USB_DEVICE(0x0cf3, 0x311e), .driver_info = BTUSB_ATH3012 }, 224 { USB_DEVICE(0x0cf3, 0x311f), .driver_info = BTUSB_ATH3012 }, 225 { USB_DEVICE(0x0cf3, 0x3121), .driver_info = BTUSB_ATH3012 }, 226 { USB_DEVICE(0x0cf3, 0x817a), .driver_info = BTUSB_ATH3012 }, 227 { USB_DEVICE(0x0cf3, 0x817b), .driver_info = BTUSB_ATH3012 }, 228 { USB_DEVICE(0x0cf3, 0xe003), .driver_info = BTUSB_ATH3012 }, 229 { USB_DEVICE(0x0cf3, 0xe004), .driver_info = BTUSB_ATH3012 }, 230 { USB_DEVICE(0x0cf3, 0xe005), .driver_info = BTUSB_ATH3012 }, 231 { USB_DEVICE(0x0cf3, 0xe006), .driver_info = BTUSB_ATH3012 }, 232 { USB_DEVICE(0x13d3, 0x3362), .driver_info = BTUSB_ATH3012 }, 233 { USB_DEVICE(0x13d3, 0x3375), .driver_info = BTUSB_ATH3012 }, 234 { USB_DEVICE(0x13d3, 0x3393), .driver_info = BTUSB_ATH3012 }, 235 { USB_DEVICE(0x13d3, 0x3395), .driver_info = BTUSB_ATH3012 }, 236 { USB_DEVICE(0x13d3, 0x3402), .driver_info = BTUSB_ATH3012 }, 237 { USB_DEVICE(0x13d3, 0x3408), .driver_info = BTUSB_ATH3012 }, 238 { USB_DEVICE(0x13d3, 0x3423), .driver_info = BTUSB_ATH3012 }, 239 { USB_DEVICE(0x13d3, 0x3432), .driver_info = BTUSB_ATH3012 }, 240 { USB_DEVICE(0x13d3, 0x3472), .driver_info = BTUSB_ATH3012 }, 241 { USB_DEVICE(0x13d3, 0x3474), .driver_info = BTUSB_ATH3012 }, 242 { USB_DEVICE(0x13d3, 0x3487), .driver_info = BTUSB_ATH3012 }, 243 { USB_DEVICE(0x13d3, 0x3490), .driver_info = BTUSB_ATH3012 }, 244 245 /* Atheros AR5BBU12 with sflash firmware */ 246 { USB_DEVICE(0x0489, 0xe02c), .driver_info = BTUSB_IGNORE }, 247 248 /* Atheros AR5BBU12 with sflash firmware */ 249 { USB_DEVICE(0x0489, 0xe036), .driver_info = BTUSB_ATH3012 }, 250 { USB_DEVICE(0x0489, 0xe03c), .driver_info = BTUSB_ATH3012 }, 251 252 /* QCA ROME chipset */ 253 { USB_DEVICE(0x0cf3, 0x535b), .driver_info = BTUSB_QCA_ROME }, 254 { USB_DEVICE(0x0cf3, 0xe007), .driver_info = BTUSB_QCA_ROME }, 255 { USB_DEVICE(0x0cf3, 0xe009), .driver_info = BTUSB_QCA_ROME }, 256 { USB_DEVICE(0x0cf3, 0xe010), .driver_info = BTUSB_QCA_ROME }, 257 { USB_DEVICE(0x0cf3, 0xe300), .driver_info = BTUSB_QCA_ROME }, 258 { USB_DEVICE(0x0cf3, 0xe301), .driver_info = BTUSB_QCA_ROME }, 259 { USB_DEVICE(0x0cf3, 0xe360), .driver_info = BTUSB_QCA_ROME }, 260 { USB_DEVICE(0x0489, 0xe092), .driver_info = BTUSB_QCA_ROME }, 261 { USB_DEVICE(0x0489, 0xe09f), .driver_info = BTUSB_QCA_ROME }, 262 { USB_DEVICE(0x0489, 0xe0a2), .driver_info = BTUSB_QCA_ROME }, 263 { USB_DEVICE(0x04ca, 0x3011), .driver_info = BTUSB_QCA_ROME }, 264 { USB_DEVICE(0x04ca, 0x3015), .driver_info = BTUSB_QCA_ROME }, 265 { USB_DEVICE(0x04ca, 0x3016), .driver_info = BTUSB_QCA_ROME }, 266 { USB_DEVICE(0x04ca, 0x301a), .driver_info = BTUSB_QCA_ROME }, 267 { USB_DEVICE(0x13d3, 0x3496), .driver_info = BTUSB_QCA_ROME }, 268 269 /* Broadcom BCM2035 */ 270 { USB_DEVICE(0x0a5c, 0x2009), .driver_info = BTUSB_BCM92035 }, 271 { USB_DEVICE(0x0a5c, 0x200a), .driver_info = BTUSB_WRONG_SCO_MTU }, 272 { USB_DEVICE(0x0a5c, 0x2035), .driver_info = BTUSB_WRONG_SCO_MTU }, 273 274 /* Broadcom BCM2045 */ 275 { USB_DEVICE(0x0a5c, 0x2039), .driver_info = BTUSB_WRONG_SCO_MTU }, 276 { USB_DEVICE(0x0a5c, 0x2101), .driver_info = BTUSB_WRONG_SCO_MTU }, 277 278 /* IBM/Lenovo ThinkPad with Broadcom chip */ 279 { USB_DEVICE(0x0a5c, 0x201e), .driver_info = BTUSB_WRONG_SCO_MTU }, 280 { USB_DEVICE(0x0a5c, 0x2110), .driver_info = BTUSB_WRONG_SCO_MTU }, 281 282 /* HP laptop with Broadcom chip */ 283 { USB_DEVICE(0x03f0, 0x171d), .driver_info = BTUSB_WRONG_SCO_MTU }, 284 285 /* Dell laptop with Broadcom chip */ 286 { USB_DEVICE(0x413c, 0x8126), .driver_info = BTUSB_WRONG_SCO_MTU }, 287 288 /* Dell Wireless 370 and 410 devices */ 289 { USB_DEVICE(0x413c, 0x8152), .driver_info = BTUSB_WRONG_SCO_MTU }, 290 { USB_DEVICE(0x413c, 0x8156), .driver_info = BTUSB_WRONG_SCO_MTU }, 291 292 /* Belkin F8T012 and F8T013 devices */ 293 { USB_DEVICE(0x050d, 0x0012), .driver_info = BTUSB_WRONG_SCO_MTU }, 294 { USB_DEVICE(0x050d, 0x0013), .driver_info = BTUSB_WRONG_SCO_MTU }, 295 296 /* Asus WL-BTD202 device */ 297 { USB_DEVICE(0x0b05, 0x1715), .driver_info = BTUSB_WRONG_SCO_MTU }, 298 299 /* Kensington Bluetooth USB adapter */ 300 { USB_DEVICE(0x047d, 0x105e), .driver_info = BTUSB_WRONG_SCO_MTU }, 301 302 /* RTX Telecom based adapters with buggy SCO support */ 303 { USB_DEVICE(0x0400, 0x0807), .driver_info = BTUSB_BROKEN_ISOC }, 304 { USB_DEVICE(0x0400, 0x080a), .driver_info = BTUSB_BROKEN_ISOC }, 305 306 /* CONWISE Technology based adapters with buggy SCO support */ 307 { USB_DEVICE(0x0e5e, 0x6622), 308 .driver_info = BTUSB_BROKEN_ISOC | BTUSB_CW6622}, 309 310 /* Roper Class 1 Bluetooth Dongle (Silicon Wave based) */ 311 { USB_DEVICE(0x1310, 0x0001), .driver_info = BTUSB_SWAVE }, 312 313 /* Digianswer devices */ 314 { USB_DEVICE(0x08fd, 0x0001), .driver_info = BTUSB_DIGIANSWER }, 315 { USB_DEVICE(0x08fd, 0x0002), .driver_info = BTUSB_IGNORE }, 316 317 /* CSR BlueCore Bluetooth Sniffer */ 318 { USB_DEVICE(0x0a12, 0x0002), 319 .driver_info = BTUSB_SNIFFER | BTUSB_BROKEN_ISOC }, 320 321 /* Frontline ComProbe Bluetooth Sniffer */ 322 { USB_DEVICE(0x16d3, 0x0002), 323 .driver_info = BTUSB_SNIFFER | BTUSB_BROKEN_ISOC }, 324 325 /* Marvell Bluetooth devices */ 326 { USB_DEVICE(0x1286, 0x2044), .driver_info = BTUSB_MARVELL }, 327 { USB_DEVICE(0x1286, 0x2046), .driver_info = BTUSB_MARVELL }, 328 { USB_DEVICE(0x1286, 0x204e), .driver_info = BTUSB_MARVELL }, 329 330 /* Intel Bluetooth devices */ 331 { USB_DEVICE(0x8087, 0x0025), .driver_info = BTUSB_INTEL_NEW }, 332 { USB_DEVICE(0x8087, 0x0026), .driver_info = BTUSB_INTEL_NEW }, 333 { USB_DEVICE(0x8087, 0x0029), .driver_info = BTUSB_INTEL_NEW }, 334 { USB_DEVICE(0x8087, 0x07da), .driver_info = BTUSB_CSR }, 335 { USB_DEVICE(0x8087, 0x07dc), .driver_info = BTUSB_INTEL }, 336 { USB_DEVICE(0x8087, 0x0a2a), .driver_info = BTUSB_INTEL }, 337 { USB_DEVICE(0x8087, 0x0a2b), .driver_info = BTUSB_INTEL_NEW }, 338 { USB_DEVICE(0x8087, 0x0aa7), .driver_info = BTUSB_INTEL }, 339 { USB_DEVICE(0x8087, 0x0aaa), .driver_info = BTUSB_INTEL_NEW }, 340 341 /* Other Intel Bluetooth devices */ 342 { USB_VENDOR_AND_INTERFACE_INFO(0x8087, 0xe0, 0x01, 0x01), 343 .driver_info = BTUSB_IGNORE }, 344 345 /* Realtek Bluetooth devices */ 346 { USB_VENDOR_AND_INTERFACE_INFO(0x0bda, 0xe0, 0x01, 0x01), 347 .driver_info = BTUSB_REALTEK }, 348 349 /* Additional Realtek 8723AE Bluetooth devices */ 350 { USB_DEVICE(0x0930, 0x021d), .driver_info = BTUSB_REALTEK }, 351 { USB_DEVICE(0x13d3, 0x3394), .driver_info = BTUSB_REALTEK }, 352 353 /* Additional Realtek 8723BE Bluetooth devices */ 354 { USB_DEVICE(0x0489, 0xe085), .driver_info = BTUSB_REALTEK }, 355 { USB_DEVICE(0x0489, 0xe08b), .driver_info = BTUSB_REALTEK }, 356 { USB_DEVICE(0x13d3, 0x3410), .driver_info = BTUSB_REALTEK }, 357 { USB_DEVICE(0x13d3, 0x3416), .driver_info = BTUSB_REALTEK }, 358 { USB_DEVICE(0x13d3, 0x3459), .driver_info = BTUSB_REALTEK }, 359 { USB_DEVICE(0x13d3, 0x3494), .driver_info = BTUSB_REALTEK }, 360 361 /* Additional Realtek 8723BU Bluetooth devices */ 362 { USB_DEVICE(0x7392, 0xa611), .driver_info = BTUSB_REALTEK }, 363 364 /* Additional Realtek 8723DE Bluetooth devices */ 365 { USB_DEVICE(0x0bda, 0xb009), .driver_info = BTUSB_REALTEK }, 366 { USB_DEVICE(0x2ff8, 0xb011), .driver_info = BTUSB_REALTEK }, 367 368 /* Additional Realtek 8821AE Bluetooth devices */ 369 { USB_DEVICE(0x0b05, 0x17dc), .driver_info = BTUSB_REALTEK }, 370 { USB_DEVICE(0x13d3, 0x3414), .driver_info = BTUSB_REALTEK }, 371 { USB_DEVICE(0x13d3, 0x3458), .driver_info = BTUSB_REALTEK }, 372 { USB_DEVICE(0x13d3, 0x3461), .driver_info = BTUSB_REALTEK }, 373 { USB_DEVICE(0x13d3, 0x3462), .driver_info = BTUSB_REALTEK }, 374 375 /* Additional Realtek 8822BE Bluetooth devices */ 376 { USB_DEVICE(0x13d3, 0x3526), .driver_info = BTUSB_REALTEK }, 377 { USB_DEVICE(0x0b05, 0x185c), .driver_info = BTUSB_REALTEK }, 378 379 /* Silicon Wave based devices */ 380 { USB_DEVICE(0x0c10, 0x0000), .driver_info = BTUSB_SWAVE }, 381 382 { } /* Terminating entry */ 383 }; 384 385 /* The Bluetooth USB module build into some devices needs to be reset on resume, 386 * this is a problem with the platform (likely shutting off all power) not with 387 * the module itself. So we use a DMI list to match known broken platforms. 388 */ 389 static const struct dmi_system_id btusb_needs_reset_resume_table[] = { 390 { 391 /* Dell OptiPlex 3060 (QCA ROME device 0cf3:e007) */ 392 .matches = { 393 DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."), 394 DMI_MATCH(DMI_PRODUCT_NAME, "OptiPlex 3060"), 395 }, 396 }, 397 { 398 /* Dell XPS 9360 (QCA ROME device 0cf3:e300) */ 399 .matches = { 400 DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."), 401 DMI_MATCH(DMI_PRODUCT_NAME, "XPS 13 9360"), 402 }, 403 }, 404 { 405 /* Dell Inspiron 5565 (QCA ROME device 0cf3:e009) */ 406 .matches = { 407 DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."), 408 DMI_MATCH(DMI_PRODUCT_NAME, "Inspiron 5565"), 409 }, 410 }, 411 {} 412 }; 413 414 #define BTUSB_MAX_ISOC_FRAMES 10 415 416 #define BTUSB_INTR_RUNNING 0 417 #define BTUSB_BULK_RUNNING 1 418 #define BTUSB_ISOC_RUNNING 2 419 #define BTUSB_SUSPENDING 3 420 #define BTUSB_DID_ISO_RESUME 4 421 #define BTUSB_BOOTLOADER 5 422 #define BTUSB_DOWNLOADING 6 423 #define BTUSB_FIRMWARE_LOADED 7 424 #define BTUSB_FIRMWARE_FAILED 8 425 #define BTUSB_BOOTING 9 426 #define BTUSB_DIAG_RUNNING 10 427 #define BTUSB_OOB_WAKE_ENABLED 11 428 #define BTUSB_HW_RESET_ACTIVE 12 429 430 struct btusb_data { 431 struct hci_dev *hdev; 432 struct usb_device *udev; 433 struct usb_interface *intf; 434 struct usb_interface *isoc; 435 struct usb_interface *diag; 436 unsigned isoc_ifnum; 437 438 unsigned long flags; 439 440 struct work_struct work; 441 struct work_struct waker; 442 443 struct usb_anchor deferred; 444 struct usb_anchor tx_anchor; 445 int tx_in_flight; 446 spinlock_t txlock; 447 448 struct usb_anchor intr_anchor; 449 struct usb_anchor bulk_anchor; 450 struct usb_anchor isoc_anchor; 451 struct usb_anchor diag_anchor; 452 spinlock_t rxlock; 453 454 struct sk_buff *evt_skb; 455 struct sk_buff *acl_skb; 456 struct sk_buff *sco_skb; 457 458 struct usb_endpoint_descriptor *intr_ep; 459 struct usb_endpoint_descriptor *bulk_tx_ep; 460 struct usb_endpoint_descriptor *bulk_rx_ep; 461 struct usb_endpoint_descriptor *isoc_tx_ep; 462 struct usb_endpoint_descriptor *isoc_rx_ep; 463 struct usb_endpoint_descriptor *diag_tx_ep; 464 struct usb_endpoint_descriptor *diag_rx_ep; 465 466 struct gpio_desc *reset_gpio; 467 468 __u8 cmdreq_type; 469 __u8 cmdreq; 470 471 unsigned int sco_num; 472 int isoc_altsetting; 473 int suspend_count; 474 475 int (*recv_event)(struct hci_dev *hdev, struct sk_buff *skb); 476 int (*recv_bulk)(struct btusb_data *data, void *buffer, int count); 477 478 int (*setup_on_usb)(struct hci_dev *hdev); 479 480 int oob_wake_irq; /* irq for out-of-band wake-on-bt */ 481 unsigned cmd_timeout_cnt; 482 }; 483 484 485 static void btusb_intel_cmd_timeout(struct hci_dev *hdev) 486 { 487 struct btusb_data *data = hci_get_drvdata(hdev); 488 struct gpio_desc *reset_gpio = data->reset_gpio; 489 490 if (++data->cmd_timeout_cnt < 5) 491 return; 492 493 if (!reset_gpio) { 494 bt_dev_err(hdev, "No way to reset. Ignoring and continuing"); 495 return; 496 } 497 498 /* 499 * Toggle the hard reset line if the platform provides one. The reset 500 * is going to yank the device off the USB and then replug. So doing 501 * once is enough. The cleanup is handled correctly on the way out 502 * (standard USB disconnect), and the new device is detected cleanly 503 * and bound to the driver again like it should be. 504 */ 505 if (test_and_set_bit(BTUSB_HW_RESET_ACTIVE, &data->flags)) { 506 bt_dev_err(hdev, "last reset failed? Not resetting again"); 507 return; 508 } 509 510 bt_dev_err(hdev, "Initiating HW reset via gpio"); 511 gpiod_set_value_cansleep(reset_gpio, 1); 512 msleep(100); 513 gpiod_set_value_cansleep(reset_gpio, 0); 514 } 515 516 static inline void btusb_free_frags(struct btusb_data *data) 517 { 518 unsigned long flags; 519 520 spin_lock_irqsave(&data->rxlock, flags); 521 522 kfree_skb(data->evt_skb); 523 data->evt_skb = NULL; 524 525 kfree_skb(data->acl_skb); 526 data->acl_skb = NULL; 527 528 kfree_skb(data->sco_skb); 529 data->sco_skb = NULL; 530 531 spin_unlock_irqrestore(&data->rxlock, flags); 532 } 533 534 static int btusb_recv_intr(struct btusb_data *data, void *buffer, int count) 535 { 536 struct sk_buff *skb; 537 unsigned long flags; 538 int err = 0; 539 540 spin_lock_irqsave(&data->rxlock, flags); 541 skb = data->evt_skb; 542 543 while (count) { 544 int len; 545 546 if (!skb) { 547 skb = bt_skb_alloc(HCI_MAX_EVENT_SIZE, GFP_ATOMIC); 548 if (!skb) { 549 err = -ENOMEM; 550 break; 551 } 552 553 hci_skb_pkt_type(skb) = HCI_EVENT_PKT; 554 hci_skb_expect(skb) = HCI_EVENT_HDR_SIZE; 555 } 556 557 len = min_t(uint, hci_skb_expect(skb), count); 558 skb_put_data(skb, buffer, len); 559 560 count -= len; 561 buffer += len; 562 hci_skb_expect(skb) -= len; 563 564 if (skb->len == HCI_EVENT_HDR_SIZE) { 565 /* Complete event header */ 566 hci_skb_expect(skb) = hci_event_hdr(skb)->plen; 567 568 if (skb_tailroom(skb) < hci_skb_expect(skb)) { 569 kfree_skb(skb); 570 skb = NULL; 571 572 err = -EILSEQ; 573 break; 574 } 575 } 576 577 if (!hci_skb_expect(skb)) { 578 /* Complete frame */ 579 data->recv_event(data->hdev, skb); 580 skb = NULL; 581 } 582 } 583 584 data->evt_skb = skb; 585 spin_unlock_irqrestore(&data->rxlock, flags); 586 587 return err; 588 } 589 590 static int btusb_recv_bulk(struct btusb_data *data, void *buffer, int count) 591 { 592 struct sk_buff *skb; 593 unsigned long flags; 594 int err = 0; 595 596 spin_lock_irqsave(&data->rxlock, flags); 597 skb = data->acl_skb; 598 599 while (count) { 600 int len; 601 602 if (!skb) { 603 skb = bt_skb_alloc(HCI_MAX_FRAME_SIZE, GFP_ATOMIC); 604 if (!skb) { 605 err = -ENOMEM; 606 break; 607 } 608 609 hci_skb_pkt_type(skb) = HCI_ACLDATA_PKT; 610 hci_skb_expect(skb) = HCI_ACL_HDR_SIZE; 611 } 612 613 len = min_t(uint, hci_skb_expect(skb), count); 614 skb_put_data(skb, buffer, len); 615 616 count -= len; 617 buffer += len; 618 hci_skb_expect(skb) -= len; 619 620 if (skb->len == HCI_ACL_HDR_SIZE) { 621 __le16 dlen = hci_acl_hdr(skb)->dlen; 622 623 /* Complete ACL header */ 624 hci_skb_expect(skb) = __le16_to_cpu(dlen); 625 626 if (skb_tailroom(skb) < hci_skb_expect(skb)) { 627 kfree_skb(skb); 628 skb = NULL; 629 630 err = -EILSEQ; 631 break; 632 } 633 } 634 635 if (!hci_skb_expect(skb)) { 636 /* Complete frame */ 637 hci_recv_frame(data->hdev, skb); 638 skb = NULL; 639 } 640 } 641 642 data->acl_skb = skb; 643 spin_unlock_irqrestore(&data->rxlock, flags); 644 645 return err; 646 } 647 648 static int btusb_recv_isoc(struct btusb_data *data, void *buffer, int count) 649 { 650 struct sk_buff *skb; 651 unsigned long flags; 652 int err = 0; 653 654 spin_lock_irqsave(&data->rxlock, flags); 655 skb = data->sco_skb; 656 657 while (count) { 658 int len; 659 660 if (!skb) { 661 skb = bt_skb_alloc(HCI_MAX_SCO_SIZE, GFP_ATOMIC); 662 if (!skb) { 663 err = -ENOMEM; 664 break; 665 } 666 667 hci_skb_pkt_type(skb) = HCI_SCODATA_PKT; 668 hci_skb_expect(skb) = HCI_SCO_HDR_SIZE; 669 } 670 671 len = min_t(uint, hci_skb_expect(skb), count); 672 skb_put_data(skb, buffer, len); 673 674 count -= len; 675 buffer += len; 676 hci_skb_expect(skb) -= len; 677 678 if (skb->len == HCI_SCO_HDR_SIZE) { 679 /* Complete SCO header */ 680 hci_skb_expect(skb) = hci_sco_hdr(skb)->dlen; 681 682 if (skb_tailroom(skb) < hci_skb_expect(skb)) { 683 kfree_skb(skb); 684 skb = NULL; 685 686 err = -EILSEQ; 687 break; 688 } 689 } 690 691 if (!hci_skb_expect(skb)) { 692 /* Complete frame */ 693 hci_recv_frame(data->hdev, skb); 694 skb = NULL; 695 } 696 } 697 698 data->sco_skb = skb; 699 spin_unlock_irqrestore(&data->rxlock, flags); 700 701 return err; 702 } 703 704 static void btusb_intr_complete(struct urb *urb) 705 { 706 struct hci_dev *hdev = urb->context; 707 struct btusb_data *data = hci_get_drvdata(hdev); 708 int err; 709 710 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status, 711 urb->actual_length); 712 713 if (!test_bit(HCI_RUNNING, &hdev->flags)) 714 return; 715 716 if (urb->status == 0) { 717 hdev->stat.byte_rx += urb->actual_length; 718 719 if (btusb_recv_intr(data, urb->transfer_buffer, 720 urb->actual_length) < 0) { 721 bt_dev_err(hdev, "corrupted event packet"); 722 hdev->stat.err_rx++; 723 } 724 } else if (urb->status == -ENOENT) { 725 /* Avoid suspend failed when usb_kill_urb */ 726 return; 727 } 728 729 if (!test_bit(BTUSB_INTR_RUNNING, &data->flags)) 730 return; 731 732 usb_mark_last_busy(data->udev); 733 usb_anchor_urb(urb, &data->intr_anchor); 734 735 err = usb_submit_urb(urb, GFP_ATOMIC); 736 if (err < 0) { 737 /* -EPERM: urb is being killed; 738 * -ENODEV: device got disconnected 739 */ 740 if (err != -EPERM && err != -ENODEV) 741 bt_dev_err(hdev, "urb %p failed to resubmit (%d)", 742 urb, -err); 743 usb_unanchor_urb(urb); 744 } 745 } 746 747 static int btusb_submit_intr_urb(struct hci_dev *hdev, gfp_t mem_flags) 748 { 749 struct btusb_data *data = hci_get_drvdata(hdev); 750 struct urb *urb; 751 unsigned char *buf; 752 unsigned int pipe; 753 int err, size; 754 755 BT_DBG("%s", hdev->name); 756 757 if (!data->intr_ep) 758 return -ENODEV; 759 760 urb = usb_alloc_urb(0, mem_flags); 761 if (!urb) 762 return -ENOMEM; 763 764 size = le16_to_cpu(data->intr_ep->wMaxPacketSize); 765 766 buf = kmalloc(size, mem_flags); 767 if (!buf) { 768 usb_free_urb(urb); 769 return -ENOMEM; 770 } 771 772 pipe = usb_rcvintpipe(data->udev, data->intr_ep->bEndpointAddress); 773 774 usb_fill_int_urb(urb, data->udev, pipe, buf, size, 775 btusb_intr_complete, hdev, data->intr_ep->bInterval); 776 777 urb->transfer_flags |= URB_FREE_BUFFER; 778 779 usb_anchor_urb(urb, &data->intr_anchor); 780 781 err = usb_submit_urb(urb, mem_flags); 782 if (err < 0) { 783 if (err != -EPERM && err != -ENODEV) 784 bt_dev_err(hdev, "urb %p submission failed (%d)", 785 urb, -err); 786 usb_unanchor_urb(urb); 787 } 788 789 usb_free_urb(urb); 790 791 return err; 792 } 793 794 static void btusb_bulk_complete(struct urb *urb) 795 { 796 struct hci_dev *hdev = urb->context; 797 struct btusb_data *data = hci_get_drvdata(hdev); 798 int err; 799 800 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status, 801 urb->actual_length); 802 803 if (!test_bit(HCI_RUNNING, &hdev->flags)) 804 return; 805 806 if (urb->status == 0) { 807 hdev->stat.byte_rx += urb->actual_length; 808 809 if (data->recv_bulk(data, urb->transfer_buffer, 810 urb->actual_length) < 0) { 811 bt_dev_err(hdev, "corrupted ACL packet"); 812 hdev->stat.err_rx++; 813 } 814 } else if (urb->status == -ENOENT) { 815 /* Avoid suspend failed when usb_kill_urb */ 816 return; 817 } 818 819 if (!test_bit(BTUSB_BULK_RUNNING, &data->flags)) 820 return; 821 822 usb_anchor_urb(urb, &data->bulk_anchor); 823 usb_mark_last_busy(data->udev); 824 825 err = usb_submit_urb(urb, GFP_ATOMIC); 826 if (err < 0) { 827 /* -EPERM: urb is being killed; 828 * -ENODEV: device got disconnected 829 */ 830 if (err != -EPERM && err != -ENODEV) 831 bt_dev_err(hdev, "urb %p failed to resubmit (%d)", 832 urb, -err); 833 usb_unanchor_urb(urb); 834 } 835 } 836 837 static int btusb_submit_bulk_urb(struct hci_dev *hdev, gfp_t mem_flags) 838 { 839 struct btusb_data *data = hci_get_drvdata(hdev); 840 struct urb *urb; 841 unsigned char *buf; 842 unsigned int pipe; 843 int err, size = HCI_MAX_FRAME_SIZE; 844 845 BT_DBG("%s", hdev->name); 846 847 if (!data->bulk_rx_ep) 848 return -ENODEV; 849 850 urb = usb_alloc_urb(0, mem_flags); 851 if (!urb) 852 return -ENOMEM; 853 854 buf = kmalloc(size, mem_flags); 855 if (!buf) { 856 usb_free_urb(urb); 857 return -ENOMEM; 858 } 859 860 pipe = usb_rcvbulkpipe(data->udev, data->bulk_rx_ep->bEndpointAddress); 861 862 usb_fill_bulk_urb(urb, data->udev, pipe, buf, size, 863 btusb_bulk_complete, hdev); 864 865 urb->transfer_flags |= URB_FREE_BUFFER; 866 867 usb_mark_last_busy(data->udev); 868 usb_anchor_urb(urb, &data->bulk_anchor); 869 870 err = usb_submit_urb(urb, mem_flags); 871 if (err < 0) { 872 if (err != -EPERM && err != -ENODEV) 873 bt_dev_err(hdev, "urb %p submission failed (%d)", 874 urb, -err); 875 usb_unanchor_urb(urb); 876 } 877 878 usb_free_urb(urb); 879 880 return err; 881 } 882 883 static void btusb_isoc_complete(struct urb *urb) 884 { 885 struct hci_dev *hdev = urb->context; 886 struct btusb_data *data = hci_get_drvdata(hdev); 887 int i, err; 888 889 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status, 890 urb->actual_length); 891 892 if (!test_bit(HCI_RUNNING, &hdev->flags)) 893 return; 894 895 if (urb->status == 0) { 896 for (i = 0; i < urb->number_of_packets; i++) { 897 unsigned int offset = urb->iso_frame_desc[i].offset; 898 unsigned int length = urb->iso_frame_desc[i].actual_length; 899 900 if (urb->iso_frame_desc[i].status) 901 continue; 902 903 hdev->stat.byte_rx += length; 904 905 if (btusb_recv_isoc(data, urb->transfer_buffer + offset, 906 length) < 0) { 907 bt_dev_err(hdev, "corrupted SCO packet"); 908 hdev->stat.err_rx++; 909 } 910 } 911 } else if (urb->status == -ENOENT) { 912 /* Avoid suspend failed when usb_kill_urb */ 913 return; 914 } 915 916 if (!test_bit(BTUSB_ISOC_RUNNING, &data->flags)) 917 return; 918 919 usb_anchor_urb(urb, &data->isoc_anchor); 920 921 err = usb_submit_urb(urb, GFP_ATOMIC); 922 if (err < 0) { 923 /* -EPERM: urb is being killed; 924 * -ENODEV: device got disconnected 925 */ 926 if (err != -EPERM && err != -ENODEV) 927 bt_dev_err(hdev, "urb %p failed to resubmit (%d)", 928 urb, -err); 929 usb_unanchor_urb(urb); 930 } 931 } 932 933 static inline void __fill_isoc_descriptor(struct urb *urb, int len, int mtu) 934 { 935 int i, offset = 0; 936 937 BT_DBG("len %d mtu %d", len, mtu); 938 939 for (i = 0; i < BTUSB_MAX_ISOC_FRAMES && len >= mtu; 940 i++, offset += mtu, len -= mtu) { 941 urb->iso_frame_desc[i].offset = offset; 942 urb->iso_frame_desc[i].length = mtu; 943 } 944 945 if (len && i < BTUSB_MAX_ISOC_FRAMES) { 946 urb->iso_frame_desc[i].offset = offset; 947 urb->iso_frame_desc[i].length = len; 948 i++; 949 } 950 951 urb->number_of_packets = i; 952 } 953 954 static int btusb_submit_isoc_urb(struct hci_dev *hdev, gfp_t mem_flags) 955 { 956 struct btusb_data *data = hci_get_drvdata(hdev); 957 struct urb *urb; 958 unsigned char *buf; 959 unsigned int pipe; 960 int err, size; 961 962 BT_DBG("%s", hdev->name); 963 964 if (!data->isoc_rx_ep) 965 return -ENODEV; 966 967 urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, mem_flags); 968 if (!urb) 969 return -ENOMEM; 970 971 size = le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize) * 972 BTUSB_MAX_ISOC_FRAMES; 973 974 buf = kmalloc(size, mem_flags); 975 if (!buf) { 976 usb_free_urb(urb); 977 return -ENOMEM; 978 } 979 980 pipe = usb_rcvisocpipe(data->udev, data->isoc_rx_ep->bEndpointAddress); 981 982 usb_fill_int_urb(urb, data->udev, pipe, buf, size, btusb_isoc_complete, 983 hdev, data->isoc_rx_ep->bInterval); 984 985 urb->transfer_flags = URB_FREE_BUFFER | URB_ISO_ASAP; 986 987 __fill_isoc_descriptor(urb, size, 988 le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize)); 989 990 usb_anchor_urb(urb, &data->isoc_anchor); 991 992 err = usb_submit_urb(urb, mem_flags); 993 if (err < 0) { 994 if (err != -EPERM && err != -ENODEV) 995 bt_dev_err(hdev, "urb %p submission failed (%d)", 996 urb, -err); 997 usb_unanchor_urb(urb); 998 } 999 1000 usb_free_urb(urb); 1001 1002 return err; 1003 } 1004 1005 static void btusb_diag_complete(struct urb *urb) 1006 { 1007 struct hci_dev *hdev = urb->context; 1008 struct btusb_data *data = hci_get_drvdata(hdev); 1009 int err; 1010 1011 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status, 1012 urb->actual_length); 1013 1014 if (urb->status == 0) { 1015 struct sk_buff *skb; 1016 1017 skb = bt_skb_alloc(urb->actual_length, GFP_ATOMIC); 1018 if (skb) { 1019 skb_put_data(skb, urb->transfer_buffer, 1020 urb->actual_length); 1021 hci_recv_diag(hdev, skb); 1022 } 1023 } else if (urb->status == -ENOENT) { 1024 /* Avoid suspend failed when usb_kill_urb */ 1025 return; 1026 } 1027 1028 if (!test_bit(BTUSB_DIAG_RUNNING, &data->flags)) 1029 return; 1030 1031 usb_anchor_urb(urb, &data->diag_anchor); 1032 usb_mark_last_busy(data->udev); 1033 1034 err = usb_submit_urb(urb, GFP_ATOMIC); 1035 if (err < 0) { 1036 /* -EPERM: urb is being killed; 1037 * -ENODEV: device got disconnected 1038 */ 1039 if (err != -EPERM && err != -ENODEV) 1040 bt_dev_err(hdev, "urb %p failed to resubmit (%d)", 1041 urb, -err); 1042 usb_unanchor_urb(urb); 1043 } 1044 } 1045 1046 static int btusb_submit_diag_urb(struct hci_dev *hdev, gfp_t mem_flags) 1047 { 1048 struct btusb_data *data = hci_get_drvdata(hdev); 1049 struct urb *urb; 1050 unsigned char *buf; 1051 unsigned int pipe; 1052 int err, size = HCI_MAX_FRAME_SIZE; 1053 1054 BT_DBG("%s", hdev->name); 1055 1056 if (!data->diag_rx_ep) 1057 return -ENODEV; 1058 1059 urb = usb_alloc_urb(0, mem_flags); 1060 if (!urb) 1061 return -ENOMEM; 1062 1063 buf = kmalloc(size, mem_flags); 1064 if (!buf) { 1065 usb_free_urb(urb); 1066 return -ENOMEM; 1067 } 1068 1069 pipe = usb_rcvbulkpipe(data->udev, data->diag_rx_ep->bEndpointAddress); 1070 1071 usb_fill_bulk_urb(urb, data->udev, pipe, buf, size, 1072 btusb_diag_complete, hdev); 1073 1074 urb->transfer_flags |= URB_FREE_BUFFER; 1075 1076 usb_mark_last_busy(data->udev); 1077 usb_anchor_urb(urb, &data->diag_anchor); 1078 1079 err = usb_submit_urb(urb, mem_flags); 1080 if (err < 0) { 1081 if (err != -EPERM && err != -ENODEV) 1082 bt_dev_err(hdev, "urb %p submission failed (%d)", 1083 urb, -err); 1084 usb_unanchor_urb(urb); 1085 } 1086 1087 usb_free_urb(urb); 1088 1089 return err; 1090 } 1091 1092 static void btusb_tx_complete(struct urb *urb) 1093 { 1094 struct sk_buff *skb = urb->context; 1095 struct hci_dev *hdev = (struct hci_dev *)skb->dev; 1096 struct btusb_data *data = hci_get_drvdata(hdev); 1097 unsigned long flags; 1098 1099 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status, 1100 urb->actual_length); 1101 1102 if (!test_bit(HCI_RUNNING, &hdev->flags)) 1103 goto done; 1104 1105 if (!urb->status) 1106 hdev->stat.byte_tx += urb->transfer_buffer_length; 1107 else 1108 hdev->stat.err_tx++; 1109 1110 done: 1111 spin_lock_irqsave(&data->txlock, flags); 1112 data->tx_in_flight--; 1113 spin_unlock_irqrestore(&data->txlock, flags); 1114 1115 kfree(urb->setup_packet); 1116 1117 kfree_skb(skb); 1118 } 1119 1120 static void btusb_isoc_tx_complete(struct urb *urb) 1121 { 1122 struct sk_buff *skb = urb->context; 1123 struct hci_dev *hdev = (struct hci_dev *)skb->dev; 1124 1125 BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status, 1126 urb->actual_length); 1127 1128 if (!test_bit(HCI_RUNNING, &hdev->flags)) 1129 goto done; 1130 1131 if (!urb->status) 1132 hdev->stat.byte_tx += urb->transfer_buffer_length; 1133 else 1134 hdev->stat.err_tx++; 1135 1136 done: 1137 kfree(urb->setup_packet); 1138 1139 kfree_skb(skb); 1140 } 1141 1142 static int btusb_open(struct hci_dev *hdev) 1143 { 1144 struct btusb_data *data = hci_get_drvdata(hdev); 1145 int err; 1146 1147 BT_DBG("%s", hdev->name); 1148 1149 err = usb_autopm_get_interface(data->intf); 1150 if (err < 0) 1151 return err; 1152 1153 /* Patching USB firmware files prior to starting any URBs of HCI path 1154 * It is more safe to use USB bulk channel for downloading USB patch 1155 */ 1156 if (data->setup_on_usb) { 1157 err = data->setup_on_usb(hdev); 1158 if (err < 0) 1159 return err; 1160 } 1161 1162 data->intf->needs_remote_wakeup = 1; 1163 /* device specific wakeup source enabled and required for USB 1164 * remote wakeup while host is suspended 1165 */ 1166 device_wakeup_enable(&data->udev->dev); 1167 1168 if (test_and_set_bit(BTUSB_INTR_RUNNING, &data->flags)) 1169 goto done; 1170 1171 err = btusb_submit_intr_urb(hdev, GFP_KERNEL); 1172 if (err < 0) 1173 goto failed; 1174 1175 err = btusb_submit_bulk_urb(hdev, GFP_KERNEL); 1176 if (err < 0) { 1177 usb_kill_anchored_urbs(&data->intr_anchor); 1178 goto failed; 1179 } 1180 1181 set_bit(BTUSB_BULK_RUNNING, &data->flags); 1182 btusb_submit_bulk_urb(hdev, GFP_KERNEL); 1183 1184 if (data->diag) { 1185 if (!btusb_submit_diag_urb(hdev, GFP_KERNEL)) 1186 set_bit(BTUSB_DIAG_RUNNING, &data->flags); 1187 } 1188 1189 done: 1190 usb_autopm_put_interface(data->intf); 1191 return 0; 1192 1193 failed: 1194 clear_bit(BTUSB_INTR_RUNNING, &data->flags); 1195 usb_autopm_put_interface(data->intf); 1196 return err; 1197 } 1198 1199 static void btusb_stop_traffic(struct btusb_data *data) 1200 { 1201 usb_kill_anchored_urbs(&data->intr_anchor); 1202 usb_kill_anchored_urbs(&data->bulk_anchor); 1203 usb_kill_anchored_urbs(&data->isoc_anchor); 1204 usb_kill_anchored_urbs(&data->diag_anchor); 1205 } 1206 1207 static int btusb_close(struct hci_dev *hdev) 1208 { 1209 struct btusb_data *data = hci_get_drvdata(hdev); 1210 int err; 1211 1212 BT_DBG("%s", hdev->name); 1213 1214 cancel_work_sync(&data->work); 1215 cancel_work_sync(&data->waker); 1216 1217 clear_bit(BTUSB_ISOC_RUNNING, &data->flags); 1218 clear_bit(BTUSB_BULK_RUNNING, &data->flags); 1219 clear_bit(BTUSB_INTR_RUNNING, &data->flags); 1220 clear_bit(BTUSB_DIAG_RUNNING, &data->flags); 1221 1222 btusb_stop_traffic(data); 1223 btusb_free_frags(data); 1224 1225 err = usb_autopm_get_interface(data->intf); 1226 if (err < 0) 1227 goto failed; 1228 1229 data->intf->needs_remote_wakeup = 0; 1230 device_wakeup_disable(&data->udev->dev); 1231 usb_autopm_put_interface(data->intf); 1232 1233 failed: 1234 usb_scuttle_anchored_urbs(&data->deferred); 1235 return 0; 1236 } 1237 1238 static int btusb_flush(struct hci_dev *hdev) 1239 { 1240 struct btusb_data *data = hci_get_drvdata(hdev); 1241 1242 BT_DBG("%s", hdev->name); 1243 1244 usb_kill_anchored_urbs(&data->tx_anchor); 1245 btusb_free_frags(data); 1246 1247 return 0; 1248 } 1249 1250 static struct urb *alloc_ctrl_urb(struct hci_dev *hdev, struct sk_buff *skb) 1251 { 1252 struct btusb_data *data = hci_get_drvdata(hdev); 1253 struct usb_ctrlrequest *dr; 1254 struct urb *urb; 1255 unsigned int pipe; 1256 1257 urb = usb_alloc_urb(0, GFP_KERNEL); 1258 if (!urb) 1259 return ERR_PTR(-ENOMEM); 1260 1261 dr = kmalloc(sizeof(*dr), GFP_KERNEL); 1262 if (!dr) { 1263 usb_free_urb(urb); 1264 return ERR_PTR(-ENOMEM); 1265 } 1266 1267 dr->bRequestType = data->cmdreq_type; 1268 dr->bRequest = data->cmdreq; 1269 dr->wIndex = 0; 1270 dr->wValue = 0; 1271 dr->wLength = __cpu_to_le16(skb->len); 1272 1273 pipe = usb_sndctrlpipe(data->udev, 0x00); 1274 1275 usb_fill_control_urb(urb, data->udev, pipe, (void *)dr, 1276 skb->data, skb->len, btusb_tx_complete, skb); 1277 1278 skb->dev = (void *)hdev; 1279 1280 return urb; 1281 } 1282 1283 static struct urb *alloc_bulk_urb(struct hci_dev *hdev, struct sk_buff *skb) 1284 { 1285 struct btusb_data *data = hci_get_drvdata(hdev); 1286 struct urb *urb; 1287 unsigned int pipe; 1288 1289 if (!data->bulk_tx_ep) 1290 return ERR_PTR(-ENODEV); 1291 1292 urb = usb_alloc_urb(0, GFP_KERNEL); 1293 if (!urb) 1294 return ERR_PTR(-ENOMEM); 1295 1296 pipe = usb_sndbulkpipe(data->udev, data->bulk_tx_ep->bEndpointAddress); 1297 1298 usb_fill_bulk_urb(urb, data->udev, pipe, 1299 skb->data, skb->len, btusb_tx_complete, skb); 1300 1301 skb->dev = (void *)hdev; 1302 1303 return urb; 1304 } 1305 1306 static struct urb *alloc_isoc_urb(struct hci_dev *hdev, struct sk_buff *skb) 1307 { 1308 struct btusb_data *data = hci_get_drvdata(hdev); 1309 struct urb *urb; 1310 unsigned int pipe; 1311 1312 if (!data->isoc_tx_ep) 1313 return ERR_PTR(-ENODEV); 1314 1315 urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, GFP_KERNEL); 1316 if (!urb) 1317 return ERR_PTR(-ENOMEM); 1318 1319 pipe = usb_sndisocpipe(data->udev, data->isoc_tx_ep->bEndpointAddress); 1320 1321 usb_fill_int_urb(urb, data->udev, pipe, 1322 skb->data, skb->len, btusb_isoc_tx_complete, 1323 skb, data->isoc_tx_ep->bInterval); 1324 1325 urb->transfer_flags = URB_ISO_ASAP; 1326 1327 __fill_isoc_descriptor(urb, skb->len, 1328 le16_to_cpu(data->isoc_tx_ep->wMaxPacketSize)); 1329 1330 skb->dev = (void *)hdev; 1331 1332 return urb; 1333 } 1334 1335 static int submit_tx_urb(struct hci_dev *hdev, struct urb *urb) 1336 { 1337 struct btusb_data *data = hci_get_drvdata(hdev); 1338 int err; 1339 1340 usb_anchor_urb(urb, &data->tx_anchor); 1341 1342 err = usb_submit_urb(urb, GFP_KERNEL); 1343 if (err < 0) { 1344 if (err != -EPERM && err != -ENODEV) 1345 bt_dev_err(hdev, "urb %p submission failed (%d)", 1346 urb, -err); 1347 kfree(urb->setup_packet); 1348 usb_unanchor_urb(urb); 1349 } else { 1350 usb_mark_last_busy(data->udev); 1351 } 1352 1353 usb_free_urb(urb); 1354 return err; 1355 } 1356 1357 static int submit_or_queue_tx_urb(struct hci_dev *hdev, struct urb *urb) 1358 { 1359 struct btusb_data *data = hci_get_drvdata(hdev); 1360 unsigned long flags; 1361 bool suspending; 1362 1363 spin_lock_irqsave(&data->txlock, flags); 1364 suspending = test_bit(BTUSB_SUSPENDING, &data->flags); 1365 if (!suspending) 1366 data->tx_in_flight++; 1367 spin_unlock_irqrestore(&data->txlock, flags); 1368 1369 if (!suspending) 1370 return submit_tx_urb(hdev, urb); 1371 1372 usb_anchor_urb(urb, &data->deferred); 1373 schedule_work(&data->waker); 1374 1375 usb_free_urb(urb); 1376 return 0; 1377 } 1378 1379 static int btusb_send_frame(struct hci_dev *hdev, struct sk_buff *skb) 1380 { 1381 struct urb *urb; 1382 1383 BT_DBG("%s", hdev->name); 1384 1385 switch (hci_skb_pkt_type(skb)) { 1386 case HCI_COMMAND_PKT: 1387 urb = alloc_ctrl_urb(hdev, skb); 1388 if (IS_ERR(urb)) 1389 return PTR_ERR(urb); 1390 1391 hdev->stat.cmd_tx++; 1392 return submit_or_queue_tx_urb(hdev, urb); 1393 1394 case HCI_ACLDATA_PKT: 1395 urb = alloc_bulk_urb(hdev, skb); 1396 if (IS_ERR(urb)) 1397 return PTR_ERR(urb); 1398 1399 hdev->stat.acl_tx++; 1400 return submit_or_queue_tx_urb(hdev, urb); 1401 1402 case HCI_SCODATA_PKT: 1403 if (hci_conn_num(hdev, SCO_LINK) < 1) 1404 return -ENODEV; 1405 1406 urb = alloc_isoc_urb(hdev, skb); 1407 if (IS_ERR(urb)) 1408 return PTR_ERR(urb); 1409 1410 hdev->stat.sco_tx++; 1411 return submit_tx_urb(hdev, urb); 1412 } 1413 1414 return -EILSEQ; 1415 } 1416 1417 static void btusb_notify(struct hci_dev *hdev, unsigned int evt) 1418 { 1419 struct btusb_data *data = hci_get_drvdata(hdev); 1420 1421 BT_DBG("%s evt %d", hdev->name, evt); 1422 1423 if (hci_conn_num(hdev, SCO_LINK) != data->sco_num) { 1424 data->sco_num = hci_conn_num(hdev, SCO_LINK); 1425 schedule_work(&data->work); 1426 } 1427 } 1428 1429 static inline int __set_isoc_interface(struct hci_dev *hdev, int altsetting) 1430 { 1431 struct btusb_data *data = hci_get_drvdata(hdev); 1432 struct usb_interface *intf = data->isoc; 1433 struct usb_endpoint_descriptor *ep_desc; 1434 int i, err; 1435 1436 if (!data->isoc) 1437 return -ENODEV; 1438 1439 err = usb_set_interface(data->udev, data->isoc_ifnum, altsetting); 1440 if (err < 0) { 1441 bt_dev_err(hdev, "setting interface failed (%d)", -err); 1442 return err; 1443 } 1444 1445 data->isoc_altsetting = altsetting; 1446 1447 data->isoc_tx_ep = NULL; 1448 data->isoc_rx_ep = NULL; 1449 1450 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) { 1451 ep_desc = &intf->cur_altsetting->endpoint[i].desc; 1452 1453 if (!data->isoc_tx_ep && usb_endpoint_is_isoc_out(ep_desc)) { 1454 data->isoc_tx_ep = ep_desc; 1455 continue; 1456 } 1457 1458 if (!data->isoc_rx_ep && usb_endpoint_is_isoc_in(ep_desc)) { 1459 data->isoc_rx_ep = ep_desc; 1460 continue; 1461 } 1462 } 1463 1464 if (!data->isoc_tx_ep || !data->isoc_rx_ep) { 1465 bt_dev_err(hdev, "invalid SCO descriptors"); 1466 return -ENODEV; 1467 } 1468 1469 return 0; 1470 } 1471 1472 static void btusb_work(struct work_struct *work) 1473 { 1474 struct btusb_data *data = container_of(work, struct btusb_data, work); 1475 struct hci_dev *hdev = data->hdev; 1476 int new_alts; 1477 int err; 1478 1479 if (data->sco_num > 0) { 1480 if (!test_bit(BTUSB_DID_ISO_RESUME, &data->flags)) { 1481 err = usb_autopm_get_interface(data->isoc ? data->isoc : data->intf); 1482 if (err < 0) { 1483 clear_bit(BTUSB_ISOC_RUNNING, &data->flags); 1484 usb_kill_anchored_urbs(&data->isoc_anchor); 1485 return; 1486 } 1487 1488 set_bit(BTUSB_DID_ISO_RESUME, &data->flags); 1489 } 1490 1491 if (hdev->voice_setting & 0x0020) { 1492 static const int alts[3] = { 2, 4, 5 }; 1493 1494 new_alts = alts[data->sco_num - 1]; 1495 } else { 1496 new_alts = data->sco_num; 1497 } 1498 1499 if (data->isoc_altsetting != new_alts) { 1500 unsigned long flags; 1501 1502 clear_bit(BTUSB_ISOC_RUNNING, &data->flags); 1503 usb_kill_anchored_urbs(&data->isoc_anchor); 1504 1505 /* When isochronous alternate setting needs to be 1506 * changed, because SCO connection has been added 1507 * or removed, a packet fragment may be left in the 1508 * reassembling state. This could lead to wrongly 1509 * assembled fragments. 1510 * 1511 * Clear outstanding fragment when selecting a new 1512 * alternate setting. 1513 */ 1514 spin_lock_irqsave(&data->rxlock, flags); 1515 kfree_skb(data->sco_skb); 1516 data->sco_skb = NULL; 1517 spin_unlock_irqrestore(&data->rxlock, flags); 1518 1519 if (__set_isoc_interface(hdev, new_alts) < 0) 1520 return; 1521 } 1522 1523 if (!test_and_set_bit(BTUSB_ISOC_RUNNING, &data->flags)) { 1524 if (btusb_submit_isoc_urb(hdev, GFP_KERNEL) < 0) 1525 clear_bit(BTUSB_ISOC_RUNNING, &data->flags); 1526 else 1527 btusb_submit_isoc_urb(hdev, GFP_KERNEL); 1528 } 1529 } else { 1530 clear_bit(BTUSB_ISOC_RUNNING, &data->flags); 1531 usb_kill_anchored_urbs(&data->isoc_anchor); 1532 1533 __set_isoc_interface(hdev, 0); 1534 if (test_and_clear_bit(BTUSB_DID_ISO_RESUME, &data->flags)) 1535 usb_autopm_put_interface(data->isoc ? data->isoc : data->intf); 1536 } 1537 } 1538 1539 static void btusb_waker(struct work_struct *work) 1540 { 1541 struct btusb_data *data = container_of(work, struct btusb_data, waker); 1542 int err; 1543 1544 err = usb_autopm_get_interface(data->intf); 1545 if (err < 0) 1546 return; 1547 1548 usb_autopm_put_interface(data->intf); 1549 } 1550 1551 static int btusb_setup_bcm92035(struct hci_dev *hdev) 1552 { 1553 struct sk_buff *skb; 1554 u8 val = 0x00; 1555 1556 BT_DBG("%s", hdev->name); 1557 1558 skb = __hci_cmd_sync(hdev, 0xfc3b, 1, &val, HCI_INIT_TIMEOUT); 1559 if (IS_ERR(skb)) 1560 bt_dev_err(hdev, "BCM92035 command failed (%ld)", PTR_ERR(skb)); 1561 else 1562 kfree_skb(skb); 1563 1564 return 0; 1565 } 1566 1567 static int btusb_setup_csr(struct hci_dev *hdev) 1568 { 1569 struct hci_rp_read_local_version *rp; 1570 struct sk_buff *skb; 1571 1572 BT_DBG("%s", hdev->name); 1573 1574 skb = __hci_cmd_sync(hdev, HCI_OP_READ_LOCAL_VERSION, 0, NULL, 1575 HCI_INIT_TIMEOUT); 1576 if (IS_ERR(skb)) { 1577 int err = PTR_ERR(skb); 1578 bt_dev_err(hdev, "CSR: Local version failed (%d)", err); 1579 return err; 1580 } 1581 1582 if (skb->len != sizeof(struct hci_rp_read_local_version)) { 1583 bt_dev_err(hdev, "CSR: Local version length mismatch"); 1584 kfree_skb(skb); 1585 return -EIO; 1586 } 1587 1588 rp = (struct hci_rp_read_local_version *)skb->data; 1589 1590 /* Detect controllers which aren't real CSR ones. */ 1591 if (le16_to_cpu(rp->manufacturer) != 10 || 1592 le16_to_cpu(rp->lmp_subver) == 0x0c5c) { 1593 /* Clear the reset quirk since this is not an actual 1594 * early Bluetooth 1.1 device from CSR. 1595 */ 1596 clear_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks); 1597 1598 /* These fake CSR controllers have all a broken 1599 * stored link key handling and so just disable it. 1600 */ 1601 set_bit(HCI_QUIRK_BROKEN_STORED_LINK_KEY, &hdev->quirks); 1602 } 1603 1604 kfree_skb(skb); 1605 1606 return 0; 1607 } 1608 1609 static const struct firmware *btusb_setup_intel_get_fw(struct hci_dev *hdev, 1610 struct intel_version *ver) 1611 { 1612 const struct firmware *fw; 1613 char fwname[64]; 1614 int ret; 1615 1616 snprintf(fwname, sizeof(fwname), 1617 "intel/ibt-hw-%x.%x.%x-fw-%x.%x.%x.%x.%x.bseq", 1618 ver->hw_platform, ver->hw_variant, ver->hw_revision, 1619 ver->fw_variant, ver->fw_revision, ver->fw_build_num, 1620 ver->fw_build_ww, ver->fw_build_yy); 1621 1622 ret = request_firmware(&fw, fwname, &hdev->dev); 1623 if (ret < 0) { 1624 if (ret == -EINVAL) { 1625 bt_dev_err(hdev, "Intel firmware file request failed (%d)", 1626 ret); 1627 return NULL; 1628 } 1629 1630 bt_dev_err(hdev, "failed to open Intel firmware file: %s (%d)", 1631 fwname, ret); 1632 1633 /* If the correct firmware patch file is not found, use the 1634 * default firmware patch file instead 1635 */ 1636 snprintf(fwname, sizeof(fwname), "intel/ibt-hw-%x.%x.bseq", 1637 ver->hw_platform, ver->hw_variant); 1638 if (request_firmware(&fw, fwname, &hdev->dev) < 0) { 1639 bt_dev_err(hdev, "failed to open default fw file: %s", 1640 fwname); 1641 return NULL; 1642 } 1643 } 1644 1645 bt_dev_info(hdev, "Intel Bluetooth firmware file: %s", fwname); 1646 1647 return fw; 1648 } 1649 1650 static int btusb_setup_intel_patching(struct hci_dev *hdev, 1651 const struct firmware *fw, 1652 const u8 **fw_ptr, int *disable_patch) 1653 { 1654 struct sk_buff *skb; 1655 struct hci_command_hdr *cmd; 1656 const u8 *cmd_param; 1657 struct hci_event_hdr *evt = NULL; 1658 const u8 *evt_param = NULL; 1659 int remain = fw->size - (*fw_ptr - fw->data); 1660 1661 /* The first byte indicates the types of the patch command or event. 1662 * 0x01 means HCI command and 0x02 is HCI event. If the first bytes 1663 * in the current firmware buffer doesn't start with 0x01 or 1664 * the size of remain buffer is smaller than HCI command header, 1665 * the firmware file is corrupted and it should stop the patching 1666 * process. 1667 */ 1668 if (remain > HCI_COMMAND_HDR_SIZE && *fw_ptr[0] != 0x01) { 1669 bt_dev_err(hdev, "Intel fw corrupted: invalid cmd read"); 1670 return -EINVAL; 1671 } 1672 (*fw_ptr)++; 1673 remain--; 1674 1675 cmd = (struct hci_command_hdr *)(*fw_ptr); 1676 *fw_ptr += sizeof(*cmd); 1677 remain -= sizeof(*cmd); 1678 1679 /* Ensure that the remain firmware data is long enough than the length 1680 * of command parameter. If not, the firmware file is corrupted. 1681 */ 1682 if (remain < cmd->plen) { 1683 bt_dev_err(hdev, "Intel fw corrupted: invalid cmd len"); 1684 return -EFAULT; 1685 } 1686 1687 /* If there is a command that loads a patch in the firmware 1688 * file, then enable the patch upon success, otherwise just 1689 * disable the manufacturer mode, for example patch activation 1690 * is not required when the default firmware patch file is used 1691 * because there are no patch data to load. 1692 */ 1693 if (*disable_patch && le16_to_cpu(cmd->opcode) == 0xfc8e) 1694 *disable_patch = 0; 1695 1696 cmd_param = *fw_ptr; 1697 *fw_ptr += cmd->plen; 1698 remain -= cmd->plen; 1699 1700 /* This reads the expected events when the above command is sent to the 1701 * device. Some vendor commands expects more than one events, for 1702 * example command status event followed by vendor specific event. 1703 * For this case, it only keeps the last expected event. so the command 1704 * can be sent with __hci_cmd_sync_ev() which returns the sk_buff of 1705 * last expected event. 1706 */ 1707 while (remain > HCI_EVENT_HDR_SIZE && *fw_ptr[0] == 0x02) { 1708 (*fw_ptr)++; 1709 remain--; 1710 1711 evt = (struct hci_event_hdr *)(*fw_ptr); 1712 *fw_ptr += sizeof(*evt); 1713 remain -= sizeof(*evt); 1714 1715 if (remain < evt->plen) { 1716 bt_dev_err(hdev, "Intel fw corrupted: invalid evt len"); 1717 return -EFAULT; 1718 } 1719 1720 evt_param = *fw_ptr; 1721 *fw_ptr += evt->plen; 1722 remain -= evt->plen; 1723 } 1724 1725 /* Every HCI commands in the firmware file has its correspond event. 1726 * If event is not found or remain is smaller than zero, the firmware 1727 * file is corrupted. 1728 */ 1729 if (!evt || !evt_param || remain < 0) { 1730 bt_dev_err(hdev, "Intel fw corrupted: invalid evt read"); 1731 return -EFAULT; 1732 } 1733 1734 skb = __hci_cmd_sync_ev(hdev, le16_to_cpu(cmd->opcode), cmd->plen, 1735 cmd_param, evt->evt, HCI_INIT_TIMEOUT); 1736 if (IS_ERR(skb)) { 1737 bt_dev_err(hdev, "sending Intel patch command (0x%4.4x) failed (%ld)", 1738 cmd->opcode, PTR_ERR(skb)); 1739 return PTR_ERR(skb); 1740 } 1741 1742 /* It ensures that the returned event matches the event data read from 1743 * the firmware file. At fist, it checks the length and then 1744 * the contents of the event. 1745 */ 1746 if (skb->len != evt->plen) { 1747 bt_dev_err(hdev, "mismatch event length (opcode 0x%4.4x)", 1748 le16_to_cpu(cmd->opcode)); 1749 kfree_skb(skb); 1750 return -EFAULT; 1751 } 1752 1753 if (memcmp(skb->data, evt_param, evt->plen)) { 1754 bt_dev_err(hdev, "mismatch event parameter (opcode 0x%4.4x)", 1755 le16_to_cpu(cmd->opcode)); 1756 kfree_skb(skb); 1757 return -EFAULT; 1758 } 1759 kfree_skb(skb); 1760 1761 return 0; 1762 } 1763 1764 static int btusb_setup_intel(struct hci_dev *hdev) 1765 { 1766 struct sk_buff *skb; 1767 const struct firmware *fw; 1768 const u8 *fw_ptr; 1769 int disable_patch, err; 1770 struct intel_version ver; 1771 1772 BT_DBG("%s", hdev->name); 1773 1774 /* The controller has a bug with the first HCI command sent to it 1775 * returning number of completed commands as zero. This would stall the 1776 * command processing in the Bluetooth core. 1777 * 1778 * As a workaround, send HCI Reset command first which will reset the 1779 * number of completed commands and allow normal command processing 1780 * from now on. 1781 */ 1782 skb = __hci_cmd_sync(hdev, HCI_OP_RESET, 0, NULL, HCI_INIT_TIMEOUT); 1783 if (IS_ERR(skb)) { 1784 bt_dev_err(hdev, "sending initial HCI reset command failed (%ld)", 1785 PTR_ERR(skb)); 1786 return PTR_ERR(skb); 1787 } 1788 kfree_skb(skb); 1789 1790 /* Read Intel specific controller version first to allow selection of 1791 * which firmware file to load. 1792 * 1793 * The returned information are hardware variant and revision plus 1794 * firmware variant, revision and build number. 1795 */ 1796 err = btintel_read_version(hdev, &ver); 1797 if (err) 1798 return err; 1799 1800 bt_dev_info(hdev, "read Intel version: %02x%02x%02x%02x%02x%02x%02x%02x%02x", 1801 ver.hw_platform, ver.hw_variant, ver.hw_revision, 1802 ver.fw_variant, ver.fw_revision, ver.fw_build_num, 1803 ver.fw_build_ww, ver.fw_build_yy, ver.fw_patch_num); 1804 1805 /* fw_patch_num indicates the version of patch the device currently 1806 * have. If there is no patch data in the device, it is always 0x00. 1807 * So, if it is other than 0x00, no need to patch the device again. 1808 */ 1809 if (ver.fw_patch_num) { 1810 bt_dev_info(hdev, "Intel device is already patched. " 1811 "patch num: %02x", ver.fw_patch_num); 1812 goto complete; 1813 } 1814 1815 /* Opens the firmware patch file based on the firmware version read 1816 * from the controller. If it fails to open the matching firmware 1817 * patch file, it tries to open the default firmware patch file. 1818 * If no patch file is found, allow the device to operate without 1819 * a patch. 1820 */ 1821 fw = btusb_setup_intel_get_fw(hdev, &ver); 1822 if (!fw) 1823 goto complete; 1824 fw_ptr = fw->data; 1825 1826 /* Enable the manufacturer mode of the controller. 1827 * Only while this mode is enabled, the driver can download the 1828 * firmware patch data and configuration parameters. 1829 */ 1830 err = btintel_enter_mfg(hdev); 1831 if (err) { 1832 release_firmware(fw); 1833 return err; 1834 } 1835 1836 disable_patch = 1; 1837 1838 /* The firmware data file consists of list of Intel specific HCI 1839 * commands and its expected events. The first byte indicates the 1840 * type of the message, either HCI command or HCI event. 1841 * 1842 * It reads the command and its expected event from the firmware file, 1843 * and send to the controller. Once __hci_cmd_sync_ev() returns, 1844 * the returned event is compared with the event read from the firmware 1845 * file and it will continue until all the messages are downloaded to 1846 * the controller. 1847 * 1848 * Once the firmware patching is completed successfully, 1849 * the manufacturer mode is disabled with reset and activating the 1850 * downloaded patch. 1851 * 1852 * If the firmware patching fails, the manufacturer mode is 1853 * disabled with reset and deactivating the patch. 1854 * 1855 * If the default patch file is used, no reset is done when disabling 1856 * the manufacturer. 1857 */ 1858 while (fw->size > fw_ptr - fw->data) { 1859 int ret; 1860 1861 ret = btusb_setup_intel_patching(hdev, fw, &fw_ptr, 1862 &disable_patch); 1863 if (ret < 0) 1864 goto exit_mfg_deactivate; 1865 } 1866 1867 release_firmware(fw); 1868 1869 if (disable_patch) 1870 goto exit_mfg_disable; 1871 1872 /* Patching completed successfully and disable the manufacturer mode 1873 * with reset and activate the downloaded firmware patches. 1874 */ 1875 err = btintel_exit_mfg(hdev, true, true); 1876 if (err) 1877 return err; 1878 1879 bt_dev_info(hdev, "Intel firmware patch completed and activated"); 1880 1881 goto complete; 1882 1883 exit_mfg_disable: 1884 /* Disable the manufacturer mode without reset */ 1885 err = btintel_exit_mfg(hdev, false, false); 1886 if (err) 1887 return err; 1888 1889 bt_dev_info(hdev, "Intel firmware patch completed"); 1890 1891 goto complete; 1892 1893 exit_mfg_deactivate: 1894 release_firmware(fw); 1895 1896 /* Patching failed. Disable the manufacturer mode with reset and 1897 * deactivate the downloaded firmware patches. 1898 */ 1899 err = btintel_exit_mfg(hdev, true, false); 1900 if (err) 1901 return err; 1902 1903 bt_dev_info(hdev, "Intel firmware patch completed and deactivated"); 1904 1905 complete: 1906 /* Set the event mask for Intel specific vendor events. This enables 1907 * a few extra events that are useful during general operation. 1908 */ 1909 btintel_set_event_mask_mfg(hdev, false); 1910 1911 btintel_check_bdaddr(hdev); 1912 return 0; 1913 } 1914 1915 static int inject_cmd_complete(struct hci_dev *hdev, __u16 opcode) 1916 { 1917 struct sk_buff *skb; 1918 struct hci_event_hdr *hdr; 1919 struct hci_ev_cmd_complete *evt; 1920 1921 skb = bt_skb_alloc(sizeof(*hdr) + sizeof(*evt) + 1, GFP_KERNEL); 1922 if (!skb) 1923 return -ENOMEM; 1924 1925 hdr = skb_put(skb, sizeof(*hdr)); 1926 hdr->evt = HCI_EV_CMD_COMPLETE; 1927 hdr->plen = sizeof(*evt) + 1; 1928 1929 evt = skb_put(skb, sizeof(*evt)); 1930 evt->ncmd = 0x01; 1931 evt->opcode = cpu_to_le16(opcode); 1932 1933 skb_put_u8(skb, 0x00); 1934 1935 hci_skb_pkt_type(skb) = HCI_EVENT_PKT; 1936 1937 return hci_recv_frame(hdev, skb); 1938 } 1939 1940 static int btusb_recv_bulk_intel(struct btusb_data *data, void *buffer, 1941 int count) 1942 { 1943 /* When the device is in bootloader mode, then it can send 1944 * events via the bulk endpoint. These events are treated the 1945 * same way as the ones received from the interrupt endpoint. 1946 */ 1947 if (test_bit(BTUSB_BOOTLOADER, &data->flags)) 1948 return btusb_recv_intr(data, buffer, count); 1949 1950 return btusb_recv_bulk(data, buffer, count); 1951 } 1952 1953 static void btusb_intel_bootup(struct btusb_data *data, const void *ptr, 1954 unsigned int len) 1955 { 1956 const struct intel_bootup *evt = ptr; 1957 1958 if (len != sizeof(*evt)) 1959 return; 1960 1961 if (test_and_clear_bit(BTUSB_BOOTING, &data->flags)) 1962 wake_up_bit(&data->flags, BTUSB_BOOTING); 1963 } 1964 1965 static void btusb_intel_secure_send_result(struct btusb_data *data, 1966 const void *ptr, unsigned int len) 1967 { 1968 const struct intel_secure_send_result *evt = ptr; 1969 1970 if (len != sizeof(*evt)) 1971 return; 1972 1973 if (evt->result) 1974 set_bit(BTUSB_FIRMWARE_FAILED, &data->flags); 1975 1976 if (test_and_clear_bit(BTUSB_DOWNLOADING, &data->flags) && 1977 test_bit(BTUSB_FIRMWARE_LOADED, &data->flags)) 1978 wake_up_bit(&data->flags, BTUSB_DOWNLOADING); 1979 } 1980 1981 static int btusb_recv_event_intel(struct hci_dev *hdev, struct sk_buff *skb) 1982 { 1983 struct btusb_data *data = hci_get_drvdata(hdev); 1984 1985 if (test_bit(BTUSB_BOOTLOADER, &data->flags)) { 1986 struct hci_event_hdr *hdr = (void *)skb->data; 1987 1988 if (skb->len > HCI_EVENT_HDR_SIZE && hdr->evt == 0xff && 1989 hdr->plen > 0) { 1990 const void *ptr = skb->data + HCI_EVENT_HDR_SIZE + 1; 1991 unsigned int len = skb->len - HCI_EVENT_HDR_SIZE - 1; 1992 1993 switch (skb->data[2]) { 1994 case 0x02: 1995 /* When switching to the operational firmware 1996 * the device sends a vendor specific event 1997 * indicating that the bootup completed. 1998 */ 1999 btusb_intel_bootup(data, ptr, len); 2000 break; 2001 case 0x06: 2002 /* When the firmware loading completes the 2003 * device sends out a vendor specific event 2004 * indicating the result of the firmware 2005 * loading. 2006 */ 2007 btusb_intel_secure_send_result(data, ptr, len); 2008 break; 2009 } 2010 } 2011 } 2012 2013 return hci_recv_frame(hdev, skb); 2014 } 2015 2016 static int btusb_send_frame_intel(struct hci_dev *hdev, struct sk_buff *skb) 2017 { 2018 struct btusb_data *data = hci_get_drvdata(hdev); 2019 struct urb *urb; 2020 2021 BT_DBG("%s", hdev->name); 2022 2023 switch (hci_skb_pkt_type(skb)) { 2024 case HCI_COMMAND_PKT: 2025 if (test_bit(BTUSB_BOOTLOADER, &data->flags)) { 2026 struct hci_command_hdr *cmd = (void *)skb->data; 2027 __u16 opcode = le16_to_cpu(cmd->opcode); 2028 2029 /* When in bootloader mode and the command 0xfc09 2030 * is received, it needs to be send down the 2031 * bulk endpoint. So allocate a bulk URB instead. 2032 */ 2033 if (opcode == 0xfc09) 2034 urb = alloc_bulk_urb(hdev, skb); 2035 else 2036 urb = alloc_ctrl_urb(hdev, skb); 2037 2038 /* When the 0xfc01 command is issued to boot into 2039 * the operational firmware, it will actually not 2040 * send a command complete event. To keep the flow 2041 * control working inject that event here. 2042 */ 2043 if (opcode == 0xfc01) 2044 inject_cmd_complete(hdev, opcode); 2045 } else { 2046 urb = alloc_ctrl_urb(hdev, skb); 2047 } 2048 if (IS_ERR(urb)) 2049 return PTR_ERR(urb); 2050 2051 hdev->stat.cmd_tx++; 2052 return submit_or_queue_tx_urb(hdev, urb); 2053 2054 case HCI_ACLDATA_PKT: 2055 urb = alloc_bulk_urb(hdev, skb); 2056 if (IS_ERR(urb)) 2057 return PTR_ERR(urb); 2058 2059 hdev->stat.acl_tx++; 2060 return submit_or_queue_tx_urb(hdev, urb); 2061 2062 case HCI_SCODATA_PKT: 2063 if (hci_conn_num(hdev, SCO_LINK) < 1) 2064 return -ENODEV; 2065 2066 urb = alloc_isoc_urb(hdev, skb); 2067 if (IS_ERR(urb)) 2068 return PTR_ERR(urb); 2069 2070 hdev->stat.sco_tx++; 2071 return submit_tx_urb(hdev, urb); 2072 } 2073 2074 return -EILSEQ; 2075 } 2076 2077 static bool btusb_setup_intel_new_get_fw_name(struct intel_version *ver, 2078 struct intel_boot_params *params, 2079 char *fw_name, size_t len, 2080 const char *suffix) 2081 { 2082 switch (ver->hw_variant) { 2083 case 0x0b: /* SfP */ 2084 case 0x0c: /* WsP */ 2085 snprintf(fw_name, len, "intel/ibt-%u-%u.%s", 2086 le16_to_cpu(ver->hw_variant), 2087 le16_to_cpu(params->dev_revid), 2088 suffix); 2089 break; 2090 case 0x11: /* JfP */ 2091 case 0x12: /* ThP */ 2092 case 0x13: /* HrP */ 2093 case 0x14: /* CcP */ 2094 snprintf(fw_name, len, "intel/ibt-%u-%u-%u.%s", 2095 le16_to_cpu(ver->hw_variant), 2096 le16_to_cpu(ver->hw_revision), 2097 le16_to_cpu(ver->fw_revision), 2098 suffix); 2099 break; 2100 default: 2101 return false; 2102 } 2103 return true; 2104 } 2105 2106 static int btusb_setup_intel_new(struct hci_dev *hdev) 2107 { 2108 struct btusb_data *data = hci_get_drvdata(hdev); 2109 struct intel_version ver; 2110 struct intel_boot_params params; 2111 const struct firmware *fw; 2112 u32 boot_param; 2113 char fwname[64]; 2114 ktime_t calltime, delta, rettime; 2115 unsigned long long duration; 2116 int err; 2117 2118 BT_DBG("%s", hdev->name); 2119 2120 /* Set the default boot parameter to 0x0 and it is updated to 2121 * SKU specific boot parameter after reading Intel_Write_Boot_Params 2122 * command while downloading the firmware. 2123 */ 2124 boot_param = 0x00000000; 2125 2126 calltime = ktime_get(); 2127 2128 /* Read the Intel version information to determine if the device 2129 * is in bootloader mode or if it already has operational firmware 2130 * loaded. 2131 */ 2132 err = btintel_read_version(hdev, &ver); 2133 if (err) 2134 return err; 2135 2136 /* The hardware platform number has a fixed value of 0x37 and 2137 * for now only accept this single value. 2138 */ 2139 if (ver.hw_platform != 0x37) { 2140 bt_dev_err(hdev, "Unsupported Intel hardware platform (%u)", 2141 ver.hw_platform); 2142 return -EINVAL; 2143 } 2144 2145 /* Check for supported iBT hardware variants of this firmware 2146 * loading method. 2147 * 2148 * This check has been put in place to ensure correct forward 2149 * compatibility options when newer hardware variants come along. 2150 */ 2151 switch (ver.hw_variant) { 2152 case 0x0b: /* SfP */ 2153 case 0x0c: /* WsP */ 2154 case 0x11: /* JfP */ 2155 case 0x12: /* ThP */ 2156 case 0x13: /* HrP */ 2157 case 0x14: /* CcP */ 2158 break; 2159 default: 2160 bt_dev_err(hdev, "Unsupported Intel hardware variant (%u)", 2161 ver.hw_variant); 2162 return -EINVAL; 2163 } 2164 2165 btintel_version_info(hdev, &ver); 2166 2167 /* The firmware variant determines if the device is in bootloader 2168 * mode or is running operational firmware. The value 0x06 identifies 2169 * the bootloader and the value 0x23 identifies the operational 2170 * firmware. 2171 * 2172 * When the operational firmware is already present, then only 2173 * the check for valid Bluetooth device address is needed. This 2174 * determines if the device will be added as configured or 2175 * unconfigured controller. 2176 * 2177 * It is not possible to use the Secure Boot Parameters in this 2178 * case since that command is only available in bootloader mode. 2179 */ 2180 if (ver.fw_variant == 0x23) { 2181 clear_bit(BTUSB_BOOTLOADER, &data->flags); 2182 btintel_check_bdaddr(hdev); 2183 return 0; 2184 } 2185 2186 /* If the device is not in bootloader mode, then the only possible 2187 * choice is to return an error and abort the device initialization. 2188 */ 2189 if (ver.fw_variant != 0x06) { 2190 bt_dev_err(hdev, "Unsupported Intel firmware variant (%u)", 2191 ver.fw_variant); 2192 return -ENODEV; 2193 } 2194 2195 /* Read the secure boot parameters to identify the operating 2196 * details of the bootloader. 2197 */ 2198 err = btintel_read_boot_params(hdev, ¶ms); 2199 if (err) 2200 return err; 2201 2202 /* It is required that every single firmware fragment is acknowledged 2203 * with a command complete event. If the boot parameters indicate 2204 * that this bootloader does not send them, then abort the setup. 2205 */ 2206 if (params.limited_cce != 0x00) { 2207 bt_dev_err(hdev, "Unsupported Intel firmware loading method (%u)", 2208 params.limited_cce); 2209 return -EINVAL; 2210 } 2211 2212 /* If the OTP has no valid Bluetooth device address, then there will 2213 * also be no valid address for the operational firmware. 2214 */ 2215 if (!bacmp(¶ms.otp_bdaddr, BDADDR_ANY)) { 2216 bt_dev_info(hdev, "No device address configured"); 2217 set_bit(HCI_QUIRK_INVALID_BDADDR, &hdev->quirks); 2218 } 2219 2220 /* With this Intel bootloader only the hardware variant and device 2221 * revision information are used to select the right firmware for SfP 2222 * and WsP. 2223 * 2224 * The firmware filename is ibt-<hw_variant>-<dev_revid>.sfi. 2225 * 2226 * Currently the supported hardware variants are: 2227 * 11 (0x0b) for iBT3.0 (LnP/SfP) 2228 * 12 (0x0c) for iBT3.5 (WsP) 2229 * 2230 * For ThP/JfP and for future SKU's, the FW name varies based on HW 2231 * variant, HW revision and FW revision, as these are dependent on CNVi 2232 * and RF Combination. 2233 * 2234 * 17 (0x11) for iBT3.5 (JfP) 2235 * 18 (0x12) for iBT3.5 (ThP) 2236 * 2237 * The firmware file name for these will be 2238 * ibt-<hw_variant>-<hw_revision>-<fw_revision>.sfi. 2239 * 2240 */ 2241 err = btusb_setup_intel_new_get_fw_name(&ver, ¶ms, fwname, 2242 sizeof(fwname), "sfi"); 2243 if (!err) { 2244 bt_dev_err(hdev, "Unsupported Intel firmware naming"); 2245 return -EINVAL; 2246 } 2247 2248 err = request_firmware(&fw, fwname, &hdev->dev); 2249 if (err < 0) { 2250 bt_dev_err(hdev, "Failed to load Intel firmware file (%d)", err); 2251 return err; 2252 } 2253 2254 bt_dev_info(hdev, "Found device firmware: %s", fwname); 2255 2256 /* Save the DDC file name for later use to apply once the firmware 2257 * downloading is done. 2258 */ 2259 err = btusb_setup_intel_new_get_fw_name(&ver, ¶ms, fwname, 2260 sizeof(fwname), "ddc"); 2261 if (!err) { 2262 bt_dev_err(hdev, "Unsupported Intel firmware naming"); 2263 return -EINVAL; 2264 } 2265 2266 if (fw->size < 644) { 2267 bt_dev_err(hdev, "Invalid size of firmware file (%zu)", 2268 fw->size); 2269 err = -EBADF; 2270 goto done; 2271 } 2272 2273 set_bit(BTUSB_DOWNLOADING, &data->flags); 2274 2275 /* Start firmware downloading and get boot parameter */ 2276 err = btintel_download_firmware(hdev, fw, &boot_param); 2277 if (err < 0) 2278 goto done; 2279 2280 set_bit(BTUSB_FIRMWARE_LOADED, &data->flags); 2281 2282 bt_dev_info(hdev, "Waiting for firmware download to complete"); 2283 2284 /* Before switching the device into operational mode and with that 2285 * booting the loaded firmware, wait for the bootloader notification 2286 * that all fragments have been successfully received. 2287 * 2288 * When the event processing receives the notification, then the 2289 * BTUSB_DOWNLOADING flag will be cleared. 2290 * 2291 * The firmware loading should not take longer than 5 seconds 2292 * and thus just timeout if that happens and fail the setup 2293 * of this device. 2294 */ 2295 err = wait_on_bit_timeout(&data->flags, BTUSB_DOWNLOADING, 2296 TASK_INTERRUPTIBLE, 2297 msecs_to_jiffies(5000)); 2298 if (err == -EINTR) { 2299 bt_dev_err(hdev, "Firmware loading interrupted"); 2300 goto done; 2301 } 2302 2303 if (err) { 2304 bt_dev_err(hdev, "Firmware loading timeout"); 2305 err = -ETIMEDOUT; 2306 goto done; 2307 } 2308 2309 if (test_bit(BTUSB_FIRMWARE_FAILED, &data->flags)) { 2310 bt_dev_err(hdev, "Firmware loading failed"); 2311 err = -ENOEXEC; 2312 goto done; 2313 } 2314 2315 rettime = ktime_get(); 2316 delta = ktime_sub(rettime, calltime); 2317 duration = (unsigned long long) ktime_to_ns(delta) >> 10; 2318 2319 bt_dev_info(hdev, "Firmware loaded in %llu usecs", duration); 2320 2321 done: 2322 release_firmware(fw); 2323 2324 if (err < 0) 2325 return err; 2326 2327 calltime = ktime_get(); 2328 2329 set_bit(BTUSB_BOOTING, &data->flags); 2330 2331 err = btintel_send_intel_reset(hdev, boot_param); 2332 if (err) 2333 return err; 2334 2335 /* The bootloader will not indicate when the device is ready. This 2336 * is done by the operational firmware sending bootup notification. 2337 * 2338 * Booting into operational firmware should not take longer than 2339 * 1 second. However if that happens, then just fail the setup 2340 * since something went wrong. 2341 */ 2342 bt_dev_info(hdev, "Waiting for device to boot"); 2343 2344 err = wait_on_bit_timeout(&data->flags, BTUSB_BOOTING, 2345 TASK_INTERRUPTIBLE, 2346 msecs_to_jiffies(1000)); 2347 2348 if (err == -EINTR) { 2349 bt_dev_err(hdev, "Device boot interrupted"); 2350 return -EINTR; 2351 } 2352 2353 if (err) { 2354 bt_dev_err(hdev, "Device boot timeout"); 2355 return -ETIMEDOUT; 2356 } 2357 2358 rettime = ktime_get(); 2359 delta = ktime_sub(rettime, calltime); 2360 duration = (unsigned long long) ktime_to_ns(delta) >> 10; 2361 2362 bt_dev_info(hdev, "Device booted in %llu usecs", duration); 2363 2364 clear_bit(BTUSB_BOOTLOADER, &data->flags); 2365 2366 /* Once the device is running in operational mode, it needs to apply 2367 * the device configuration (DDC) parameters. 2368 * 2369 * The device can work without DDC parameters, so even if it fails 2370 * to load the file, no need to fail the setup. 2371 */ 2372 btintel_load_ddc_config(hdev, fwname); 2373 2374 /* Set the event mask for Intel specific vendor events. This enables 2375 * a few extra events that are useful during general operation. It 2376 * does not enable any debugging related events. 2377 * 2378 * The device will function correctly without these events enabled 2379 * and thus no need to fail the setup. 2380 */ 2381 btintel_set_event_mask(hdev, false); 2382 2383 return 0; 2384 } 2385 2386 static int btusb_shutdown_intel(struct hci_dev *hdev) 2387 { 2388 struct sk_buff *skb; 2389 long ret; 2390 2391 /* In the shutdown sequence where Bluetooth is turned off followed 2392 * by WiFi being turned off, turning WiFi back on causes issue with 2393 * the RF calibration. 2394 * 2395 * To ensure that any RF activity has been stopped, issue HCI Reset 2396 * command to clear all ongoing activity including advertising, 2397 * scanning etc. 2398 */ 2399 skb = __hci_cmd_sync(hdev, HCI_OP_RESET, 0, NULL, HCI_INIT_TIMEOUT); 2400 if (IS_ERR(skb)) { 2401 ret = PTR_ERR(skb); 2402 bt_dev_err(hdev, "HCI reset during shutdown failed"); 2403 return ret; 2404 } 2405 kfree_skb(skb); 2406 2407 /* Some platforms have an issue with BT LED when the interface is 2408 * down or BT radio is turned off, which takes 5 seconds to BT LED 2409 * goes off. This command turns off the BT LED immediately. 2410 */ 2411 skb = __hci_cmd_sync(hdev, 0xfc3f, 0, NULL, HCI_INIT_TIMEOUT); 2412 if (IS_ERR(skb)) { 2413 ret = PTR_ERR(skb); 2414 bt_dev_err(hdev, "turning off Intel device LED failed"); 2415 return ret; 2416 } 2417 kfree_skb(skb); 2418 2419 return 0; 2420 } 2421 2422 static int btusb_shutdown_intel_new(struct hci_dev *hdev) 2423 { 2424 struct sk_buff *skb; 2425 2426 /* Send HCI Reset to the controller to stop any BT activity which 2427 * were triggered. This will help to save power and maintain the 2428 * sync b/w Host and controller 2429 */ 2430 skb = __hci_cmd_sync(hdev, HCI_OP_RESET, 0, NULL, HCI_INIT_TIMEOUT); 2431 if (IS_ERR(skb)) { 2432 bt_dev_err(hdev, "HCI reset during shutdown failed"); 2433 return PTR_ERR(skb); 2434 } 2435 kfree_skb(skb); 2436 2437 return 0; 2438 } 2439 2440 #ifdef CONFIG_PM 2441 /* Configure an out-of-band gpio as wake-up pin, if specified in device tree */ 2442 static int marvell_config_oob_wake(struct hci_dev *hdev) 2443 { 2444 struct sk_buff *skb; 2445 struct btusb_data *data = hci_get_drvdata(hdev); 2446 struct device *dev = &data->udev->dev; 2447 u16 pin, gap, opcode; 2448 int ret; 2449 u8 cmd[5]; 2450 2451 /* Move on if no wakeup pin specified */ 2452 if (of_property_read_u16(dev->of_node, "marvell,wakeup-pin", &pin) || 2453 of_property_read_u16(dev->of_node, "marvell,wakeup-gap-ms", &gap)) 2454 return 0; 2455 2456 /* Vendor specific command to configure a GPIO as wake-up pin */ 2457 opcode = hci_opcode_pack(0x3F, 0x59); 2458 cmd[0] = opcode & 0xFF; 2459 cmd[1] = opcode >> 8; 2460 cmd[2] = 2; /* length of parameters that follow */ 2461 cmd[3] = pin; 2462 cmd[4] = gap; /* time in ms, for which wakeup pin should be asserted */ 2463 2464 skb = bt_skb_alloc(sizeof(cmd), GFP_KERNEL); 2465 if (!skb) { 2466 bt_dev_err(hdev, "%s: No memory\n", __func__); 2467 return -ENOMEM; 2468 } 2469 2470 skb_put_data(skb, cmd, sizeof(cmd)); 2471 hci_skb_pkt_type(skb) = HCI_COMMAND_PKT; 2472 2473 ret = btusb_send_frame(hdev, skb); 2474 if (ret) { 2475 bt_dev_err(hdev, "%s: configuration failed\n", __func__); 2476 kfree_skb(skb); 2477 return ret; 2478 } 2479 2480 return 0; 2481 } 2482 #endif 2483 2484 static int btusb_set_bdaddr_marvell(struct hci_dev *hdev, 2485 const bdaddr_t *bdaddr) 2486 { 2487 struct sk_buff *skb; 2488 u8 buf[8]; 2489 long ret; 2490 2491 buf[0] = 0xfe; 2492 buf[1] = sizeof(bdaddr_t); 2493 memcpy(buf + 2, bdaddr, sizeof(bdaddr_t)); 2494 2495 skb = __hci_cmd_sync(hdev, 0xfc22, sizeof(buf), buf, HCI_INIT_TIMEOUT); 2496 if (IS_ERR(skb)) { 2497 ret = PTR_ERR(skb); 2498 bt_dev_err(hdev, "changing Marvell device address failed (%ld)", 2499 ret); 2500 return ret; 2501 } 2502 kfree_skb(skb); 2503 2504 return 0; 2505 } 2506 2507 static int btusb_set_bdaddr_ath3012(struct hci_dev *hdev, 2508 const bdaddr_t *bdaddr) 2509 { 2510 struct sk_buff *skb; 2511 u8 buf[10]; 2512 long ret; 2513 2514 buf[0] = 0x01; 2515 buf[1] = 0x01; 2516 buf[2] = 0x00; 2517 buf[3] = sizeof(bdaddr_t); 2518 memcpy(buf + 4, bdaddr, sizeof(bdaddr_t)); 2519 2520 skb = __hci_cmd_sync(hdev, 0xfc0b, sizeof(buf), buf, HCI_INIT_TIMEOUT); 2521 if (IS_ERR(skb)) { 2522 ret = PTR_ERR(skb); 2523 bt_dev_err(hdev, "Change address command failed (%ld)", ret); 2524 return ret; 2525 } 2526 kfree_skb(skb); 2527 2528 return 0; 2529 } 2530 2531 #define QCA_DFU_PACKET_LEN 4096 2532 2533 #define QCA_GET_TARGET_VERSION 0x09 2534 #define QCA_CHECK_STATUS 0x05 2535 #define QCA_DFU_DOWNLOAD 0x01 2536 2537 #define QCA_SYSCFG_UPDATED 0x40 2538 #define QCA_PATCH_UPDATED 0x80 2539 #define QCA_DFU_TIMEOUT 3000 2540 2541 struct qca_version { 2542 __le32 rom_version; 2543 __le32 patch_version; 2544 __le32 ram_version; 2545 __le32 ref_clock; 2546 __u8 reserved[4]; 2547 } __packed; 2548 2549 struct qca_rampatch_version { 2550 __le16 rom_version; 2551 __le16 patch_version; 2552 } __packed; 2553 2554 struct qca_device_info { 2555 u32 rom_version; 2556 u8 rampatch_hdr; /* length of header in rampatch */ 2557 u8 nvm_hdr; /* length of header in NVM */ 2558 u8 ver_offset; /* offset of version structure in rampatch */ 2559 }; 2560 2561 static const struct qca_device_info qca_devices_table[] = { 2562 { 0x00000100, 20, 4, 10 }, /* Rome 1.0 */ 2563 { 0x00000101, 20, 4, 10 }, /* Rome 1.1 */ 2564 { 0x00000200, 28, 4, 18 }, /* Rome 2.0 */ 2565 { 0x00000201, 28, 4, 18 }, /* Rome 2.1 */ 2566 { 0x00000300, 28, 4, 18 }, /* Rome 3.0 */ 2567 { 0x00000302, 28, 4, 18 }, /* Rome 3.2 */ 2568 }; 2569 2570 static int btusb_qca_send_vendor_req(struct usb_device *udev, u8 request, 2571 void *data, u16 size) 2572 { 2573 int pipe, err; 2574 u8 *buf; 2575 2576 buf = kmalloc(size, GFP_KERNEL); 2577 if (!buf) 2578 return -ENOMEM; 2579 2580 /* Found some of USB hosts have IOT issues with ours so that we should 2581 * not wait until HCI layer is ready. 2582 */ 2583 pipe = usb_rcvctrlpipe(udev, 0); 2584 err = usb_control_msg(udev, pipe, request, USB_TYPE_VENDOR | USB_DIR_IN, 2585 0, 0, buf, size, USB_CTRL_SET_TIMEOUT); 2586 if (err < 0) { 2587 dev_err(&udev->dev, "Failed to access otp area (%d)", err); 2588 goto done; 2589 } 2590 2591 memcpy(data, buf, size); 2592 2593 done: 2594 kfree(buf); 2595 2596 return err; 2597 } 2598 2599 static int btusb_setup_qca_download_fw(struct hci_dev *hdev, 2600 const struct firmware *firmware, 2601 size_t hdr_size) 2602 { 2603 struct btusb_data *btdata = hci_get_drvdata(hdev); 2604 struct usb_device *udev = btdata->udev; 2605 size_t count, size, sent = 0; 2606 int pipe, len, err; 2607 u8 *buf; 2608 2609 buf = kmalloc(QCA_DFU_PACKET_LEN, GFP_KERNEL); 2610 if (!buf) 2611 return -ENOMEM; 2612 2613 count = firmware->size; 2614 2615 size = min_t(size_t, count, hdr_size); 2616 memcpy(buf, firmware->data, size); 2617 2618 /* USB patches should go down to controller through USB path 2619 * because binary format fits to go down through USB channel. 2620 * USB control path is for patching headers and USB bulk is for 2621 * patch body. 2622 */ 2623 pipe = usb_sndctrlpipe(udev, 0); 2624 err = usb_control_msg(udev, pipe, QCA_DFU_DOWNLOAD, USB_TYPE_VENDOR, 2625 0, 0, buf, size, USB_CTRL_SET_TIMEOUT); 2626 if (err < 0) { 2627 bt_dev_err(hdev, "Failed to send headers (%d)", err); 2628 goto done; 2629 } 2630 2631 sent += size; 2632 count -= size; 2633 2634 while (count) { 2635 size = min_t(size_t, count, QCA_DFU_PACKET_LEN); 2636 2637 memcpy(buf, firmware->data + sent, size); 2638 2639 pipe = usb_sndbulkpipe(udev, 0x02); 2640 err = usb_bulk_msg(udev, pipe, buf, size, &len, 2641 QCA_DFU_TIMEOUT); 2642 if (err < 0) { 2643 bt_dev_err(hdev, "Failed to send body at %zd of %zd (%d)", 2644 sent, firmware->size, err); 2645 break; 2646 } 2647 2648 if (size != len) { 2649 bt_dev_err(hdev, "Failed to get bulk buffer"); 2650 err = -EILSEQ; 2651 break; 2652 } 2653 2654 sent += size; 2655 count -= size; 2656 } 2657 2658 done: 2659 kfree(buf); 2660 return err; 2661 } 2662 2663 static int btusb_setup_qca_load_rampatch(struct hci_dev *hdev, 2664 struct qca_version *ver, 2665 const struct qca_device_info *info) 2666 { 2667 struct qca_rampatch_version *rver; 2668 const struct firmware *fw; 2669 u32 ver_rom, ver_patch; 2670 u16 rver_rom, rver_patch; 2671 char fwname[64]; 2672 int err; 2673 2674 ver_rom = le32_to_cpu(ver->rom_version); 2675 ver_patch = le32_to_cpu(ver->patch_version); 2676 2677 snprintf(fwname, sizeof(fwname), "qca/rampatch_usb_%08x.bin", ver_rom); 2678 2679 err = request_firmware(&fw, fwname, &hdev->dev); 2680 if (err) { 2681 bt_dev_err(hdev, "failed to request rampatch file: %s (%d)", 2682 fwname, err); 2683 return err; 2684 } 2685 2686 bt_dev_info(hdev, "using rampatch file: %s", fwname); 2687 2688 rver = (struct qca_rampatch_version *)(fw->data + info->ver_offset); 2689 rver_rom = le16_to_cpu(rver->rom_version); 2690 rver_patch = le16_to_cpu(rver->patch_version); 2691 2692 bt_dev_info(hdev, "QCA: patch rome 0x%x build 0x%x, " 2693 "firmware rome 0x%x build 0x%x", 2694 rver_rom, rver_patch, ver_rom, ver_patch); 2695 2696 if (rver_rom != ver_rom || rver_patch <= ver_patch) { 2697 bt_dev_err(hdev, "rampatch file version did not match with firmware"); 2698 err = -EINVAL; 2699 goto done; 2700 } 2701 2702 err = btusb_setup_qca_download_fw(hdev, fw, info->rampatch_hdr); 2703 2704 done: 2705 release_firmware(fw); 2706 2707 return err; 2708 } 2709 2710 static int btusb_setup_qca_load_nvm(struct hci_dev *hdev, 2711 struct qca_version *ver, 2712 const struct qca_device_info *info) 2713 { 2714 const struct firmware *fw; 2715 char fwname[64]; 2716 int err; 2717 2718 snprintf(fwname, sizeof(fwname), "qca/nvm_usb_%08x.bin", 2719 le32_to_cpu(ver->rom_version)); 2720 2721 err = request_firmware(&fw, fwname, &hdev->dev); 2722 if (err) { 2723 bt_dev_err(hdev, "failed to request NVM file: %s (%d)", 2724 fwname, err); 2725 return err; 2726 } 2727 2728 bt_dev_info(hdev, "using NVM file: %s", fwname); 2729 2730 err = btusb_setup_qca_download_fw(hdev, fw, info->nvm_hdr); 2731 2732 release_firmware(fw); 2733 2734 return err; 2735 } 2736 2737 /* identify the ROM version and check whether patches are needed */ 2738 static bool btusb_qca_need_patch(struct usb_device *udev) 2739 { 2740 struct qca_version ver; 2741 2742 if (btusb_qca_send_vendor_req(udev, QCA_GET_TARGET_VERSION, &ver, 2743 sizeof(ver)) < 0) 2744 return false; 2745 /* only low ROM versions need patches */ 2746 return !(le32_to_cpu(ver.rom_version) & ~0xffffU); 2747 } 2748 2749 static int btusb_setup_qca(struct hci_dev *hdev) 2750 { 2751 struct btusb_data *btdata = hci_get_drvdata(hdev); 2752 struct usb_device *udev = btdata->udev; 2753 const struct qca_device_info *info = NULL; 2754 struct qca_version ver; 2755 u32 ver_rom; 2756 u8 status; 2757 int i, err; 2758 2759 err = btusb_qca_send_vendor_req(udev, QCA_GET_TARGET_VERSION, &ver, 2760 sizeof(ver)); 2761 if (err < 0) 2762 return err; 2763 2764 ver_rom = le32_to_cpu(ver.rom_version); 2765 /* Don't care about high ROM versions */ 2766 if (ver_rom & ~0xffffU) 2767 return 0; 2768 2769 for (i = 0; i < ARRAY_SIZE(qca_devices_table); i++) { 2770 if (ver_rom == qca_devices_table[i].rom_version) 2771 info = &qca_devices_table[i]; 2772 } 2773 if (!info) { 2774 bt_dev_err(hdev, "don't support firmware rome 0x%x", ver_rom); 2775 return -ENODEV; 2776 } 2777 2778 err = btusb_qca_send_vendor_req(udev, QCA_CHECK_STATUS, &status, 2779 sizeof(status)); 2780 if (err < 0) 2781 return err; 2782 2783 if (!(status & QCA_PATCH_UPDATED)) { 2784 err = btusb_setup_qca_load_rampatch(hdev, &ver, info); 2785 if (err < 0) 2786 return err; 2787 } 2788 2789 if (!(status & QCA_SYSCFG_UPDATED)) { 2790 err = btusb_setup_qca_load_nvm(hdev, &ver, info); 2791 if (err < 0) 2792 return err; 2793 } 2794 2795 return 0; 2796 } 2797 2798 #ifdef CONFIG_BT_HCIBTUSB_BCM 2799 static inline int __set_diag_interface(struct hci_dev *hdev) 2800 { 2801 struct btusb_data *data = hci_get_drvdata(hdev); 2802 struct usb_interface *intf = data->diag; 2803 int i; 2804 2805 if (!data->diag) 2806 return -ENODEV; 2807 2808 data->diag_tx_ep = NULL; 2809 data->diag_rx_ep = NULL; 2810 2811 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) { 2812 struct usb_endpoint_descriptor *ep_desc; 2813 2814 ep_desc = &intf->cur_altsetting->endpoint[i].desc; 2815 2816 if (!data->diag_tx_ep && usb_endpoint_is_bulk_out(ep_desc)) { 2817 data->diag_tx_ep = ep_desc; 2818 continue; 2819 } 2820 2821 if (!data->diag_rx_ep && usb_endpoint_is_bulk_in(ep_desc)) { 2822 data->diag_rx_ep = ep_desc; 2823 continue; 2824 } 2825 } 2826 2827 if (!data->diag_tx_ep || !data->diag_rx_ep) { 2828 bt_dev_err(hdev, "invalid diagnostic descriptors"); 2829 return -ENODEV; 2830 } 2831 2832 return 0; 2833 } 2834 2835 static struct urb *alloc_diag_urb(struct hci_dev *hdev, bool enable) 2836 { 2837 struct btusb_data *data = hci_get_drvdata(hdev); 2838 struct sk_buff *skb; 2839 struct urb *urb; 2840 unsigned int pipe; 2841 2842 if (!data->diag_tx_ep) 2843 return ERR_PTR(-ENODEV); 2844 2845 urb = usb_alloc_urb(0, GFP_KERNEL); 2846 if (!urb) 2847 return ERR_PTR(-ENOMEM); 2848 2849 skb = bt_skb_alloc(2, GFP_KERNEL); 2850 if (!skb) { 2851 usb_free_urb(urb); 2852 return ERR_PTR(-ENOMEM); 2853 } 2854 2855 skb_put_u8(skb, 0xf0); 2856 skb_put_u8(skb, enable); 2857 2858 pipe = usb_sndbulkpipe(data->udev, data->diag_tx_ep->bEndpointAddress); 2859 2860 usb_fill_bulk_urb(urb, data->udev, pipe, 2861 skb->data, skb->len, btusb_tx_complete, skb); 2862 2863 skb->dev = (void *)hdev; 2864 2865 return urb; 2866 } 2867 2868 static int btusb_bcm_set_diag(struct hci_dev *hdev, bool enable) 2869 { 2870 struct btusb_data *data = hci_get_drvdata(hdev); 2871 struct urb *urb; 2872 2873 if (!data->diag) 2874 return -ENODEV; 2875 2876 if (!test_bit(HCI_RUNNING, &hdev->flags)) 2877 return -ENETDOWN; 2878 2879 urb = alloc_diag_urb(hdev, enable); 2880 if (IS_ERR(urb)) 2881 return PTR_ERR(urb); 2882 2883 return submit_or_queue_tx_urb(hdev, urb); 2884 } 2885 #endif 2886 2887 #ifdef CONFIG_PM 2888 static irqreturn_t btusb_oob_wake_handler(int irq, void *priv) 2889 { 2890 struct btusb_data *data = priv; 2891 2892 pm_wakeup_event(&data->udev->dev, 0); 2893 pm_system_wakeup(); 2894 2895 /* Disable only if not already disabled (keep it balanced) */ 2896 if (test_and_clear_bit(BTUSB_OOB_WAKE_ENABLED, &data->flags)) { 2897 disable_irq_nosync(irq); 2898 disable_irq_wake(irq); 2899 } 2900 return IRQ_HANDLED; 2901 } 2902 2903 static const struct of_device_id btusb_match_table[] = { 2904 { .compatible = "usb1286,204e" }, 2905 { .compatible = "usbcf3,e300" }, /* QCA6174A */ 2906 { .compatible = "usb4ca,301a" }, /* QCA6174A (Lite-On) */ 2907 { } 2908 }; 2909 MODULE_DEVICE_TABLE(of, btusb_match_table); 2910 2911 /* Use an oob wakeup pin? */ 2912 static int btusb_config_oob_wake(struct hci_dev *hdev) 2913 { 2914 struct btusb_data *data = hci_get_drvdata(hdev); 2915 struct device *dev = &data->udev->dev; 2916 int irq, ret; 2917 2918 clear_bit(BTUSB_OOB_WAKE_ENABLED, &data->flags); 2919 2920 if (!of_match_device(btusb_match_table, dev)) 2921 return 0; 2922 2923 /* Move on if no IRQ specified */ 2924 irq = of_irq_get_byname(dev->of_node, "wakeup"); 2925 if (irq <= 0) { 2926 bt_dev_dbg(hdev, "%s: no OOB Wakeup IRQ in DT", __func__); 2927 return 0; 2928 } 2929 2930 irq_set_status_flags(irq, IRQ_NOAUTOEN); 2931 ret = devm_request_irq(&hdev->dev, irq, btusb_oob_wake_handler, 2932 0, "OOB Wake-on-BT", data); 2933 if (ret) { 2934 bt_dev_err(hdev, "%s: IRQ request failed", __func__); 2935 return ret; 2936 } 2937 2938 ret = device_init_wakeup(dev, true); 2939 if (ret) { 2940 bt_dev_err(hdev, "%s: failed to init_wakeup", __func__); 2941 return ret; 2942 } 2943 2944 data->oob_wake_irq = irq; 2945 bt_dev_info(hdev, "OOB Wake-on-BT configured at IRQ %u", irq); 2946 return 0; 2947 } 2948 #endif 2949 2950 static void btusb_check_needs_reset_resume(struct usb_interface *intf) 2951 { 2952 if (dmi_check_system(btusb_needs_reset_resume_table)) 2953 interface_to_usbdev(intf)->quirks |= USB_QUIRK_RESET_RESUME; 2954 } 2955 2956 static int btusb_probe(struct usb_interface *intf, 2957 const struct usb_device_id *id) 2958 { 2959 struct usb_endpoint_descriptor *ep_desc; 2960 struct gpio_desc *reset_gpio; 2961 struct btusb_data *data; 2962 struct hci_dev *hdev; 2963 unsigned ifnum_base; 2964 int i, err; 2965 2966 BT_DBG("intf %p id %p", intf, id); 2967 2968 /* interface numbers are hardcoded in the spec */ 2969 if (intf->cur_altsetting->desc.bInterfaceNumber != 0) { 2970 if (!(id->driver_info & BTUSB_IFNUM_2)) 2971 return -ENODEV; 2972 if (intf->cur_altsetting->desc.bInterfaceNumber != 2) 2973 return -ENODEV; 2974 } 2975 2976 ifnum_base = intf->cur_altsetting->desc.bInterfaceNumber; 2977 2978 if (!id->driver_info) { 2979 const struct usb_device_id *match; 2980 2981 match = usb_match_id(intf, blacklist_table); 2982 if (match) 2983 id = match; 2984 } 2985 2986 if (id->driver_info == BTUSB_IGNORE) 2987 return -ENODEV; 2988 2989 if (id->driver_info & BTUSB_ATH3012) { 2990 struct usb_device *udev = interface_to_usbdev(intf); 2991 2992 /* Old firmware would otherwise let ath3k driver load 2993 * patch and sysconfig files 2994 */ 2995 if (le16_to_cpu(udev->descriptor.bcdDevice) <= 0x0001 && 2996 !btusb_qca_need_patch(udev)) 2997 return -ENODEV; 2998 } 2999 3000 data = devm_kzalloc(&intf->dev, sizeof(*data), GFP_KERNEL); 3001 if (!data) 3002 return -ENOMEM; 3003 3004 for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) { 3005 ep_desc = &intf->cur_altsetting->endpoint[i].desc; 3006 3007 if (!data->intr_ep && usb_endpoint_is_int_in(ep_desc)) { 3008 data->intr_ep = ep_desc; 3009 continue; 3010 } 3011 3012 if (!data->bulk_tx_ep && usb_endpoint_is_bulk_out(ep_desc)) { 3013 data->bulk_tx_ep = ep_desc; 3014 continue; 3015 } 3016 3017 if (!data->bulk_rx_ep && usb_endpoint_is_bulk_in(ep_desc)) { 3018 data->bulk_rx_ep = ep_desc; 3019 continue; 3020 } 3021 } 3022 3023 if (!data->intr_ep || !data->bulk_tx_ep || !data->bulk_rx_ep) 3024 return -ENODEV; 3025 3026 if (id->driver_info & BTUSB_AMP) { 3027 data->cmdreq_type = USB_TYPE_CLASS | 0x01; 3028 data->cmdreq = 0x2b; 3029 } else { 3030 data->cmdreq_type = USB_TYPE_CLASS; 3031 data->cmdreq = 0x00; 3032 } 3033 3034 data->udev = interface_to_usbdev(intf); 3035 data->intf = intf; 3036 3037 INIT_WORK(&data->work, btusb_work); 3038 INIT_WORK(&data->waker, btusb_waker); 3039 init_usb_anchor(&data->deferred); 3040 init_usb_anchor(&data->tx_anchor); 3041 spin_lock_init(&data->txlock); 3042 3043 init_usb_anchor(&data->intr_anchor); 3044 init_usb_anchor(&data->bulk_anchor); 3045 init_usb_anchor(&data->isoc_anchor); 3046 init_usb_anchor(&data->diag_anchor); 3047 spin_lock_init(&data->rxlock); 3048 3049 if (id->driver_info & BTUSB_INTEL_NEW) { 3050 data->recv_event = btusb_recv_event_intel; 3051 data->recv_bulk = btusb_recv_bulk_intel; 3052 set_bit(BTUSB_BOOTLOADER, &data->flags); 3053 } else { 3054 data->recv_event = hci_recv_frame; 3055 data->recv_bulk = btusb_recv_bulk; 3056 } 3057 3058 hdev = hci_alloc_dev(); 3059 if (!hdev) 3060 return -ENOMEM; 3061 3062 hdev->bus = HCI_USB; 3063 hci_set_drvdata(hdev, data); 3064 3065 if (id->driver_info & BTUSB_AMP) 3066 hdev->dev_type = HCI_AMP; 3067 else 3068 hdev->dev_type = HCI_PRIMARY; 3069 3070 data->hdev = hdev; 3071 3072 SET_HCIDEV_DEV(hdev, &intf->dev); 3073 3074 reset_gpio = gpiod_get_optional(&data->udev->dev, "reset", 3075 GPIOD_OUT_LOW); 3076 if (IS_ERR(reset_gpio)) { 3077 err = PTR_ERR(reset_gpio); 3078 goto out_free_dev; 3079 } else if (reset_gpio) { 3080 data->reset_gpio = reset_gpio; 3081 } 3082 3083 hdev->open = btusb_open; 3084 hdev->close = btusb_close; 3085 hdev->flush = btusb_flush; 3086 hdev->send = btusb_send_frame; 3087 hdev->notify = btusb_notify; 3088 3089 #ifdef CONFIG_PM 3090 err = btusb_config_oob_wake(hdev); 3091 if (err) 3092 goto out_free_dev; 3093 3094 /* Marvell devices may need a specific chip configuration */ 3095 if (id->driver_info & BTUSB_MARVELL && data->oob_wake_irq) { 3096 err = marvell_config_oob_wake(hdev); 3097 if (err) 3098 goto out_free_dev; 3099 } 3100 #endif 3101 if (id->driver_info & BTUSB_CW6622) 3102 set_bit(HCI_QUIRK_BROKEN_STORED_LINK_KEY, &hdev->quirks); 3103 3104 if (id->driver_info & BTUSB_BCM2045) 3105 set_bit(HCI_QUIRK_BROKEN_STORED_LINK_KEY, &hdev->quirks); 3106 3107 if (id->driver_info & BTUSB_BCM92035) 3108 hdev->setup = btusb_setup_bcm92035; 3109 3110 #ifdef CONFIG_BT_HCIBTUSB_BCM 3111 if (id->driver_info & BTUSB_BCM_PATCHRAM) { 3112 hdev->manufacturer = 15; 3113 hdev->setup = btbcm_setup_patchram; 3114 hdev->set_diag = btusb_bcm_set_diag; 3115 hdev->set_bdaddr = btbcm_set_bdaddr; 3116 3117 /* Broadcom LM_DIAG Interface numbers are hardcoded */ 3118 data->diag = usb_ifnum_to_if(data->udev, ifnum_base + 2); 3119 } 3120 3121 if (id->driver_info & BTUSB_BCM_APPLE) { 3122 hdev->manufacturer = 15; 3123 hdev->setup = btbcm_setup_apple; 3124 hdev->set_diag = btusb_bcm_set_diag; 3125 3126 /* Broadcom LM_DIAG Interface numbers are hardcoded */ 3127 data->diag = usb_ifnum_to_if(data->udev, ifnum_base + 2); 3128 } 3129 #endif 3130 3131 if (id->driver_info & BTUSB_INTEL) { 3132 hdev->manufacturer = 2; 3133 hdev->setup = btusb_setup_intel; 3134 hdev->shutdown = btusb_shutdown_intel; 3135 hdev->set_diag = btintel_set_diag_mfg; 3136 hdev->set_bdaddr = btintel_set_bdaddr; 3137 hdev->cmd_timeout = btusb_intel_cmd_timeout; 3138 set_bit(HCI_QUIRK_STRICT_DUPLICATE_FILTER, &hdev->quirks); 3139 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks); 3140 set_bit(HCI_QUIRK_NON_PERSISTENT_DIAG, &hdev->quirks); 3141 } 3142 3143 if (id->driver_info & BTUSB_INTEL_NEW) { 3144 hdev->manufacturer = 2; 3145 hdev->send = btusb_send_frame_intel; 3146 hdev->setup = btusb_setup_intel_new; 3147 hdev->shutdown = btusb_shutdown_intel_new; 3148 hdev->hw_error = btintel_hw_error; 3149 hdev->set_diag = btintel_set_diag; 3150 hdev->set_bdaddr = btintel_set_bdaddr; 3151 hdev->cmd_timeout = btusb_intel_cmd_timeout; 3152 set_bit(HCI_QUIRK_STRICT_DUPLICATE_FILTER, &hdev->quirks); 3153 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks); 3154 set_bit(HCI_QUIRK_NON_PERSISTENT_DIAG, &hdev->quirks); 3155 } 3156 3157 if (id->driver_info & BTUSB_MARVELL) 3158 hdev->set_bdaddr = btusb_set_bdaddr_marvell; 3159 3160 if (id->driver_info & BTUSB_SWAVE) { 3161 set_bit(HCI_QUIRK_FIXUP_INQUIRY_MODE, &hdev->quirks); 3162 set_bit(HCI_QUIRK_BROKEN_LOCAL_COMMANDS, &hdev->quirks); 3163 } 3164 3165 if (id->driver_info & BTUSB_INTEL_BOOT) { 3166 hdev->manufacturer = 2; 3167 set_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks); 3168 } 3169 3170 if (id->driver_info & BTUSB_ATH3012) { 3171 data->setup_on_usb = btusb_setup_qca; 3172 hdev->set_bdaddr = btusb_set_bdaddr_ath3012; 3173 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks); 3174 set_bit(HCI_QUIRK_STRICT_DUPLICATE_FILTER, &hdev->quirks); 3175 } 3176 3177 if (id->driver_info & BTUSB_QCA_ROME) { 3178 data->setup_on_usb = btusb_setup_qca; 3179 hdev->set_bdaddr = btusb_set_bdaddr_ath3012; 3180 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks); 3181 btusb_check_needs_reset_resume(intf); 3182 } 3183 3184 #ifdef CONFIG_BT_HCIBTUSB_RTL 3185 if (id->driver_info & BTUSB_REALTEK) { 3186 hdev->setup = btrtl_setup_realtek; 3187 3188 /* Realtek devices lose their updated firmware over suspend, 3189 * but the USB hub doesn't notice any status change. 3190 * Explicitly request a device reset on resume. 3191 */ 3192 interface_to_usbdev(intf)->quirks |= USB_QUIRK_RESET_RESUME; 3193 } 3194 #endif 3195 3196 if (id->driver_info & BTUSB_AMP) { 3197 /* AMP controllers do not support SCO packets */ 3198 data->isoc = NULL; 3199 } else { 3200 /* Interface orders are hardcoded in the specification */ 3201 data->isoc = usb_ifnum_to_if(data->udev, ifnum_base + 1); 3202 data->isoc_ifnum = ifnum_base + 1; 3203 } 3204 3205 if (!reset) 3206 set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks); 3207 3208 if (force_scofix || id->driver_info & BTUSB_WRONG_SCO_MTU) { 3209 if (!disable_scofix) 3210 set_bit(HCI_QUIRK_FIXUP_BUFFER_SIZE, &hdev->quirks); 3211 } 3212 3213 if (id->driver_info & BTUSB_BROKEN_ISOC) 3214 data->isoc = NULL; 3215 3216 if (id->driver_info & BTUSB_DIGIANSWER) { 3217 data->cmdreq_type = USB_TYPE_VENDOR; 3218 set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks); 3219 } 3220 3221 if (id->driver_info & BTUSB_CSR) { 3222 struct usb_device *udev = data->udev; 3223 u16 bcdDevice = le16_to_cpu(udev->descriptor.bcdDevice); 3224 3225 /* Old firmware would otherwise execute USB reset */ 3226 if (bcdDevice < 0x117) 3227 set_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks); 3228 3229 /* Fake CSR devices with broken commands */ 3230 if (bcdDevice <= 0x100 || bcdDevice == 0x134) 3231 hdev->setup = btusb_setup_csr; 3232 3233 set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks); 3234 } 3235 3236 if (id->driver_info & BTUSB_SNIFFER) { 3237 struct usb_device *udev = data->udev; 3238 3239 /* New sniffer firmware has crippled HCI interface */ 3240 if (le16_to_cpu(udev->descriptor.bcdDevice) > 0x997) 3241 set_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks); 3242 } 3243 3244 if (id->driver_info & BTUSB_INTEL_BOOT) { 3245 /* A bug in the bootloader causes that interrupt interface is 3246 * only enabled after receiving SetInterface(0, AltSetting=0). 3247 */ 3248 err = usb_set_interface(data->udev, 0, 0); 3249 if (err < 0) { 3250 BT_ERR("failed to set interface 0, alt 0 %d", err); 3251 goto out_free_dev; 3252 } 3253 } 3254 3255 if (data->isoc) { 3256 err = usb_driver_claim_interface(&btusb_driver, 3257 data->isoc, data); 3258 if (err < 0) 3259 goto out_free_dev; 3260 } 3261 3262 #ifdef CONFIG_BT_HCIBTUSB_BCM 3263 if (data->diag) { 3264 if (!usb_driver_claim_interface(&btusb_driver, 3265 data->diag, data)) 3266 __set_diag_interface(hdev); 3267 else 3268 data->diag = NULL; 3269 } 3270 #endif 3271 3272 if (enable_autosuspend) 3273 usb_enable_autosuspend(data->udev); 3274 3275 err = hci_register_dev(hdev); 3276 if (err < 0) 3277 goto out_free_dev; 3278 3279 usb_set_intfdata(intf, data); 3280 3281 return 0; 3282 3283 out_free_dev: 3284 if (data->reset_gpio) 3285 gpiod_put(data->reset_gpio); 3286 hci_free_dev(hdev); 3287 return err; 3288 } 3289 3290 static void btusb_disconnect(struct usb_interface *intf) 3291 { 3292 struct btusb_data *data = usb_get_intfdata(intf); 3293 struct hci_dev *hdev; 3294 3295 BT_DBG("intf %p", intf); 3296 3297 if (!data) 3298 return; 3299 3300 hdev = data->hdev; 3301 usb_set_intfdata(data->intf, NULL); 3302 3303 if (data->isoc) 3304 usb_set_intfdata(data->isoc, NULL); 3305 3306 if (data->diag) 3307 usb_set_intfdata(data->diag, NULL); 3308 3309 hci_unregister_dev(hdev); 3310 3311 if (intf == data->intf) { 3312 if (data->isoc) 3313 usb_driver_release_interface(&btusb_driver, data->isoc); 3314 if (data->diag) 3315 usb_driver_release_interface(&btusb_driver, data->diag); 3316 } else if (intf == data->isoc) { 3317 if (data->diag) 3318 usb_driver_release_interface(&btusb_driver, data->diag); 3319 usb_driver_release_interface(&btusb_driver, data->intf); 3320 } else if (intf == data->diag) { 3321 usb_driver_release_interface(&btusb_driver, data->intf); 3322 if (data->isoc) 3323 usb_driver_release_interface(&btusb_driver, data->isoc); 3324 } 3325 3326 if (data->oob_wake_irq) 3327 device_init_wakeup(&data->udev->dev, false); 3328 3329 if (data->reset_gpio) 3330 gpiod_put(data->reset_gpio); 3331 3332 hci_free_dev(hdev); 3333 } 3334 3335 #ifdef CONFIG_PM 3336 static int btusb_suspend(struct usb_interface *intf, pm_message_t message) 3337 { 3338 struct btusb_data *data = usb_get_intfdata(intf); 3339 3340 BT_DBG("intf %p", intf); 3341 3342 if (data->suspend_count++) 3343 return 0; 3344 3345 spin_lock_irq(&data->txlock); 3346 if (!(PMSG_IS_AUTO(message) && data->tx_in_flight)) { 3347 set_bit(BTUSB_SUSPENDING, &data->flags); 3348 spin_unlock_irq(&data->txlock); 3349 } else { 3350 spin_unlock_irq(&data->txlock); 3351 data->suspend_count--; 3352 return -EBUSY; 3353 } 3354 3355 cancel_work_sync(&data->work); 3356 3357 btusb_stop_traffic(data); 3358 usb_kill_anchored_urbs(&data->tx_anchor); 3359 3360 if (data->oob_wake_irq && device_may_wakeup(&data->udev->dev)) { 3361 set_bit(BTUSB_OOB_WAKE_ENABLED, &data->flags); 3362 enable_irq_wake(data->oob_wake_irq); 3363 enable_irq(data->oob_wake_irq); 3364 } 3365 3366 return 0; 3367 } 3368 3369 static void play_deferred(struct btusb_data *data) 3370 { 3371 struct urb *urb; 3372 int err; 3373 3374 while ((urb = usb_get_from_anchor(&data->deferred))) { 3375 usb_anchor_urb(urb, &data->tx_anchor); 3376 3377 err = usb_submit_urb(urb, GFP_ATOMIC); 3378 if (err < 0) { 3379 if (err != -EPERM && err != -ENODEV) 3380 BT_ERR("%s urb %p submission failed (%d)", 3381 data->hdev->name, urb, -err); 3382 kfree(urb->setup_packet); 3383 usb_unanchor_urb(urb); 3384 usb_free_urb(urb); 3385 break; 3386 } 3387 3388 data->tx_in_flight++; 3389 usb_free_urb(urb); 3390 } 3391 3392 /* Cleanup the rest deferred urbs. */ 3393 while ((urb = usb_get_from_anchor(&data->deferred))) { 3394 kfree(urb->setup_packet); 3395 usb_free_urb(urb); 3396 } 3397 } 3398 3399 static int btusb_resume(struct usb_interface *intf) 3400 { 3401 struct btusb_data *data = usb_get_intfdata(intf); 3402 struct hci_dev *hdev = data->hdev; 3403 int err = 0; 3404 3405 BT_DBG("intf %p", intf); 3406 3407 if (--data->suspend_count) 3408 return 0; 3409 3410 /* Disable only if not already disabled (keep it balanced) */ 3411 if (test_and_clear_bit(BTUSB_OOB_WAKE_ENABLED, &data->flags)) { 3412 disable_irq(data->oob_wake_irq); 3413 disable_irq_wake(data->oob_wake_irq); 3414 } 3415 3416 if (!test_bit(HCI_RUNNING, &hdev->flags)) 3417 goto done; 3418 3419 if (test_bit(BTUSB_INTR_RUNNING, &data->flags)) { 3420 err = btusb_submit_intr_urb(hdev, GFP_NOIO); 3421 if (err < 0) { 3422 clear_bit(BTUSB_INTR_RUNNING, &data->flags); 3423 goto failed; 3424 } 3425 } 3426 3427 if (test_bit(BTUSB_BULK_RUNNING, &data->flags)) { 3428 err = btusb_submit_bulk_urb(hdev, GFP_NOIO); 3429 if (err < 0) { 3430 clear_bit(BTUSB_BULK_RUNNING, &data->flags); 3431 goto failed; 3432 } 3433 3434 btusb_submit_bulk_urb(hdev, GFP_NOIO); 3435 } 3436 3437 if (test_bit(BTUSB_ISOC_RUNNING, &data->flags)) { 3438 if (btusb_submit_isoc_urb(hdev, GFP_NOIO) < 0) 3439 clear_bit(BTUSB_ISOC_RUNNING, &data->flags); 3440 else 3441 btusb_submit_isoc_urb(hdev, GFP_NOIO); 3442 } 3443 3444 spin_lock_irq(&data->txlock); 3445 play_deferred(data); 3446 clear_bit(BTUSB_SUSPENDING, &data->flags); 3447 spin_unlock_irq(&data->txlock); 3448 schedule_work(&data->work); 3449 3450 return 0; 3451 3452 failed: 3453 usb_scuttle_anchored_urbs(&data->deferred); 3454 done: 3455 spin_lock_irq(&data->txlock); 3456 clear_bit(BTUSB_SUSPENDING, &data->flags); 3457 spin_unlock_irq(&data->txlock); 3458 3459 return err; 3460 } 3461 #endif 3462 3463 static struct usb_driver btusb_driver = { 3464 .name = "btusb", 3465 .probe = btusb_probe, 3466 .disconnect = btusb_disconnect, 3467 #ifdef CONFIG_PM 3468 .suspend = btusb_suspend, 3469 .resume = btusb_resume, 3470 #endif 3471 .id_table = btusb_table, 3472 .supports_autosuspend = 1, 3473 .disable_hub_initiated_lpm = 1, 3474 }; 3475 3476 module_usb_driver(btusb_driver); 3477 3478 module_param(disable_scofix, bool, 0644); 3479 MODULE_PARM_DESC(disable_scofix, "Disable fixup of wrong SCO buffer size"); 3480 3481 module_param(force_scofix, bool, 0644); 3482 MODULE_PARM_DESC(force_scofix, "Force fixup of wrong SCO buffers size"); 3483 3484 module_param(enable_autosuspend, bool, 0644); 3485 MODULE_PARM_DESC(enable_autosuspend, "Enable USB autosuspend by default"); 3486 3487 module_param(reset, bool, 0644); 3488 MODULE_PARM_DESC(reset, "Send HCI reset command on initialization"); 3489 3490 MODULE_AUTHOR("Marcel Holtmann <marcel@holtmann.org>"); 3491 MODULE_DESCRIPTION("Generic Bluetooth USB driver ver " VERSION); 3492 MODULE_VERSION(VERSION); 3493 MODULE_LICENSE("GPL"); 3494